WO2023029580A1 - 反光罩及其卡盘组件 - Google Patents

反光罩及其卡盘组件 Download PDF

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Publication number
WO2023029580A1
WO2023029580A1 PCT/CN2022/092780 CN2022092780W WO2023029580A1 WO 2023029580 A1 WO2023029580 A1 WO 2023029580A1 CN 2022092780 W CN2022092780 W CN 2022092780W WO 2023029580 A1 WO2023029580 A1 WO 2023029580A1
Authority
WO
WIPO (PCT)
Prior art keywords
chuck assembly
top plate
reflector according
reflector
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/092780
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English (en)
French (fr)
Inventor
曾伟均
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Godox Photo Equipment Co Ltd
Original Assignee
Shenzhen Godox Photo Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Godox Photo Equipment Co Ltd filed Critical Shenzhen Godox Photo Equipment Co Ltd
Priority to US18/571,836 priority Critical patent/US20240288753A1/en
Priority to EP22862723.8A priority patent/EP4398033A4/en
Publication of WO2023029580A1 publication Critical patent/WO2023029580A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio

Definitions

  • the invention relates to photographing equipment, in particular to a reflector and its chuck assembly.
  • the reflector is installed on the studio light, and the light emitted is softer, which can eliminate the light spots and shadows on the photo when shooting. Most of the reflectors support the reflective cloth through the umbrella ribs folded in the shape of an umbrella to form the reflective surface of the reflector.
  • the reflective area of the reflector is required to be larger and larger.
  • a reflector that is too large in size when folding or opening the reflector, it is necessary to fold or unfold a plurality of umbrella ribs one by one, and the operation is relatively complicated.
  • An object of the present invention is to provide a reflector and its chuck assembly which are easy to operate and easy to use.
  • a chuck assembly for a reflector comprising:
  • the chassis is used to carry a plurality of ribs hingedly connected thereto;
  • the slip ring is fixed on the chassis, the slip ring includes an annular side wall and a guide rail provided on the annular side wall, and the guide rail extends along the circumference of the annular side wall;
  • the top plate is rotatably sleeved on the slip ring, the top plate is fixed with a guide shaft facing the slip ring, and the guide shaft is movably arranged on the guide rail;
  • the top disk rotates along the circumferential direction of the slip ring, the guide shaft moves along the guide rail, and the top disk moves up and down along the axial direction of the slip ring; the lifting movement of the top disk presses the The hinged end of the umbrella rib is rotated.
  • the guide rail extends along the annular side wall in a spiral shape.
  • the guide rail is a guide groove.
  • the guide shaft is passed through the guide groove, and a bush is rotatably sleeved on the guide shaft, and the bush rolls along the guide groove.
  • the guide rail includes a first end and a second end, the guide rail gradually extends downwards from the first end to the second end, and the first end or the second end is provided with a flat section, and the flat section is located on the same circumference of the slip ring.
  • the top surface of the top plate is provided with a boss, and the boss is provided with a guide shaft hole along the radial direction of the top plate, and the guide shaft is fixedly accommodated in the guide shaft hole .
  • a pressure plate and a needle roller plate are also provided between the chassis and the top plate, the pressure plate is used to press the hinged end of the umbrella rib, and the needle roller plate presses
  • the needle roller plate includes a plate body and a plurality of needle rollers rotatably arranged on the plate body, and the plurality of needle rollers are arranged along the diameter of the plate body distribution, the needle roller rotates around its own axis, and the contact between the needle roller, the top plate and the pressure plate is line contact.
  • annular receiving groove is opened on the side of the top plate facing the bottom plate, and the needle roller is accommodated in the receiving groove.
  • the pressure plate includes an inner ring body and an outer ring body arranged on the outer periphery of the inner ring body, the inner ring body is arranged parallel to the needle roller plate, and the inner ring body is used for To carry the needle disc.
  • the outer ring body is provided with a slope, the slope is bent toward the chassis, the slope is used to press the hinged end of the rib, and the hinged end moves along the slope .
  • the hinged end of the umbrella rib is in line contact with the slope of the outer ring body.
  • the outer periphery of the top plate extends toward the bottom plate to form a fixed edge, the fixed edge is provided with a slot, and the outer peripheral edge of the pressure plate slides into the slot through interference fit Inside, the pressure plate is limited in the slot.
  • it further includes a bayonet socket for connecting an imaging device, and the bayonet socket is detachably connected to the chassis.
  • the outer surfaces of the top plate and the bottom plate are respectively provided with auxiliary holes.
  • an auxiliary pin is further included, and the auxiliary pin is correspondingly inserted into the auxiliary hole.
  • auxiliary holes opened on the top plate, and multiple auxiliary holes opened on the bottom plate.
  • a reflective cover includes umbrella ribs, reflective cloth and a chuck assembly, the reflective cloth is detachably arranged on the umbrella ribs, and the hinged ends of the umbrella ribs are hinged on the chassis.
  • an umbrella bead is provided at the end of the umbrella rib away from the chuck assembly, the umbrella rib is passed through the umbrella bead, and a pair of embedding threads are provided on opposite sides of the umbrella bead
  • the bottom of the embedding groove is provided with a thread hole, and the thread hole communicates with the two thread embedding grooves.
  • the umbrella bead is further provided with positioning grooves, and there are two positioning grooves, which are respectively arranged on opposite sides of the rod body.
  • the present invention at least has the following advantages and positive effects:
  • the above-mentioned chuck assembly of the reflector can prevent the operator from opening each umbrella rib one by one, and the umbrella ribs can be opened by turning the top plate. Moreover, when the umbrella ribs are folded, the top plate rotates in reverse, so that the limitation on the umbrella ribs can be released, and the umbrella ribs can be folded. Therefore, when using the above-mentioned chuck assembly of the reflector, the operator can avoid complicated and laborious operations, the operation is simple, the use is convenient, and the convenience of the reflector is improved.
  • Fig. 1 is a perspective view of a reflector in a folded state according to the present embodiment
  • Fig. 2 is a perspective view of the reflector shown in Fig. 1 in an open state
  • Fig. 3 is an exploded view according to the reflector shown in Fig. 2;
  • Fig. 4 is a perspective view of the umbrella bead according to the reflector shown in Fig. 2;
  • Figure 5 is a top view of the reflector shown in Figure 1;
  • Fig. 6 is a sectional view along the B-B direction according to the reflector shown in Fig. 5;
  • Fig. 7 is a partially enlarged view according to the exploded view of the reflector shown in Fig. 3;
  • Fig. 8 is an exploded view according to the top plate of the reflector shown in Fig. 3;
  • Fig. 9 is a cross-sectional view of the reflector shown in Fig. 2;
  • FIG. 10 is a cross-sectional view along the direction A-A of the reflector shown in FIG. 5 .
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • a feature defined as “first” or “second” may explicitly or implicitly include one or more of said features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • the disclosure provides a reflector and its chuck assembly.
  • the chuck assembly can be used to fixedly connect the camera equipment (not shown) to the reflector, so as to facilitate the shooting and use of the camera equipment.
  • the camera device may be various light source devices, video cameras, or zoom devices.
  • the reflector can be a soft box or a parabolic cover. One end opening of the reflector is used for loading the light source, and the other end opening is the light outlet of the light from the light source.
  • the reflector is a parabolic cover. When the light source is located at the focal point of the parabolic cover, the light passes through the reflective layer to reflect the light into a parallel beam, which is emitted from the light outlet of the reflective cover.
  • the reflector includes a chuck assembly 10 , a plurality of umbrella ribs 20 and a reflective cloth 30 .
  • the reflective cloth 30 is detachably arranged on the umbrella rib 20 .
  • One end of the rib 20 is hinged on the chuck assembly 10 .
  • the umbrella rib 20 can be opened and folded in an umbrella shape relative to the chuck assembly 10 to realize the opening and closing of the reflector.
  • FIG. 1 is an illustration of the reflector in a folded state
  • FIG. 2 is an illustration of the reflector in an open state.
  • the umbrella rib 20 is a long and narrow support rod for supporting the reflective cloth.
  • the umbrella rib 20 has certain elasticity and toughness.
  • the umbrella rib 20 can be made of fiber or metal rod.
  • the end of the rib 20 close to the chuck assembly 10 is a hinged end 21 .
  • the hinged end 21 is covered with a hinged sleeve 22 .
  • the hinged end 21 is connected to the chuck assembly 10 through a hinged sleeve 22 .
  • the ribs 20 pass through the hinge sleeve 22 .
  • the hinge sleeve 22 can be a plastic part.
  • the outer volume of the hinged sleeve 22 is larger than that of the umbrella rib 20 , so that the chuck assembly 10 can manipulate the umbrella rib 20 through the hinged sleeve 22 .
  • an arc-shaped pressing surface 23 is provided on the outer surface of the hinge sleeve 22 .
  • the surface of the pressing surface 23 is an arc surface.
  • the arc-shaped surface helps to press and hold the hinged end 21 to drive the umbrella rib 20 to move.
  • Pivots 24 are provided on opposite sides of the hinge sleeve 22 . The hinged end 21 rotates around the pivot 24 .
  • An umbrella bead 25 is provided on the end of the umbrella rib 20 away from the chuck assembly 10 .
  • the umbrella rib 20 is installed in the umbrella bead 25 .
  • the umbrella beads 25 can be fixedly connected with the reflective cloth 30 . Therefore, the umbrella bead 25 can cover the end of the umbrella rib 20 on the one hand, and the reflective cloth is better fixedly connected with the umbrella rib 20 through the umbrella bead 25 .
  • the umbrella beads 25 can also be used to install light effect accessories to increase the light effect of the reflector.
  • the umbrella bead 25 can be used to install soft light yarn and light beam grid and so on.
  • a pair of embedding grooves 252 are provided on opposite sides of the umbrella bead 25 .
  • a wire passing hole 253 is opened at the bottom of the wire embedding groove 252 , and the wire passing hole 253 communicates with the two wire embedding grooves 252 .
  • the suture passes through the thread hole 253, and the reflective cloth 30 is sewn and fixed on the umbrella bead 25. The sutures will be accommodated in the embedding groove 252 to keep the surface of the umbrella bead 25 neat.
  • the umbrella bead 25 is also provided with a positioning groove 254 .
  • the positioning groove 254 can facilitate the positioning of the flat car mold and the umbrella bead 25, and avoids the rotation of the umbrella bead 25 along the circumferential direction when the suture connects the umbrella bead 25 and the reflective cloth 30.
  • the reflective cloth 30 includes an inner reflective layer (not shown) and an outer light shielding layer (not shown).
  • the reflective cloth 30 can be soft light cloth.
  • the reflective cloth 30 is provided with a window 31 which can be opened and closed.
  • the window 31 is used for the electric cables and the like of the light source to pass through.
  • the window 31 is covered with a reflective cloth, so as to prevent the reflective surface of the reflector from being complete and prevent light from being emitted from the window 31 . It can be understood that the opening and closing of the window 31 can be realized by Velcro.
  • the chuck assembly 10 of this embodiment can also be used to unfold and fold the umbrella rib 20 and the reflective fabric 30 .
  • the chuck assembly 10 may include a bottom plate 11 , a slip ring 12 and a top plate 13 .
  • the ribs 20 are hinged on the chassis 11 . While the top plate 13 rotates along the circumferential direction of the slip ring 12 , the top plate 13 moves up and down along the axial direction of the slip ring 12 . The lifting movement of the top plate 13 relative to the bottom plate 11 will press the hinged end 21 of the rib 20 and make it rotate. The hinged end 21 of the umbrella rib 20 is relatively rotated, so that the umbrella rib 20 is opened or stored.
  • the above-mentioned chuck assembly 10 of the reflector can prevent the operator from opening each rib 20 one by one, and the ribs 20 can be opened by turning the top plate 13 . Moreover, when the umbrella rib 20 is folded, the top plate 13 rotates in the opposite direction, so that the limit on the umbrella rib 20 can be released, and the umbrella rib 20 can be folded. Therefore, when using the above-mentioned chuck assembly 10 for the reflector, the operator can avoid complicated and laborious operations, and the operation is simple and easy to use, which improves the convenience of the reflector.
  • Chassis 11 is an annular disk.
  • the chassis 11 can be made of metal to enhance the strength of the chassis 11 and improve the service life of the chuck assembly 10 .
  • a plurality of reinforcing ribs 110 are provided on the surface of the chassis 11 .
  • the ribs 110 can enhance the strength of the chassis 11 to ensure that the chassis 11 can be used repeatedly.
  • the chuck assembly 10 also includes a bayonet socket 14 for connecting a light source.
  • Bayonet 14 is used for connecting camera equipment.
  • the bayonet can be connected to a lighting device or a focus lever zoom device.
  • the imaging device is described by taking a light source and a focus lever zoom device that moves in conjunction with the light source as an example.
  • Bayonet 14 can be Bowens bayonet, also can be other special bayonets.
  • the specific type of bayonet socket 14 is not limited here.
  • the bayonet socket 14 is provided with a plurality of protrusions 141 on the outside for engaging and connecting the imaging device.
  • the protrusion 141 can realize the limited connection between the bayonet socket 14 and the imaging device. It can be understood that when the bayonet socket 14 is a different type of bayonet socket 14, the protrusion 141 can also be omitted.
  • the bayonet socket 14 can also be limitedly connected with the imaging device through other corresponding structural forms.
  • the bayonet 14 is detachably connected to the chassis 11 .
  • the inner ring of the chassis 11 is used for mounting the bayonet 14 .
  • the bayonet 14 is located on the inner side of the chassis 11 .
  • the central axis direction of the chassis 11 coincides with the central axis direction of the bayonet 14 and the optical axis direction of the reflector.
  • the central axis direction of the slip ring 12 and the central axis direction of the top plate 13 coincide with the optical axis direction of the reflector.
  • the bayonet 14 is provided with a protruding edge 142 .
  • the protruding edge 142 can be fixedly connected with the chassis 11 through the screws 91 to realize the detachable connection between the bayonet 14 and the chassis 11 .
  • the screw needs to be removed.
  • the bayonet socket 14 can also be detachably connected to the chassis 11 by means of snap-fit connection.
  • the chuck assembly 10 also includes a spacer 15 .
  • the washer 15 is sleeved on the screw, and pressed against the convex edge of the bayonet 14 and the chassis 11 to ensure that the bayonet 14 can be stably fixed.
  • the annular bearing surface of the chassis 11 is used to bear a plurality of ribs 20 hingedly connected thereto.
  • a plurality of hinge portions 111 for hinged ribs 20 are provided on the annular bearing surface of the chassis 11 .
  • the hinge parts 111 are evenly distributed along the circumferential direction of the annular supporting surface.
  • the hinge portion 111 protrudes from the annular bearing surface of the chassis 11 .
  • a plurality of hinge parts 111 are arranged at intervals from each other. Both sides of the hinge portion 111 respectively define shaft slots 112 for receiving the pivot shaft 24 of the umbrella rib 20 .
  • the shaft slot 112 defines an opening on the top surface of the hinge portion 111 , and the pivot 24 of the hinge end 21 can enter the shaft slot 112 through the opening. Then the two pivots 24 located at the same hinged end 21 can be accommodated in the shaft grooves 112 of two adjacent hinged parts 111 respectively, and the hinged end 21 forms a hinged connection with the hinged parts 111 .
  • the top of the hinge part 111 is further provided with a limiting member 113 , and the limiting member 113 blocks the opening of the top surface of the shaft groove 112 .
  • the hinged portion 111 blocks the opening of the shaft groove 112 on the top surface of the hinged portion 111 through the limiting member 113 .
  • the limiting member 113 can prevent the pivot shaft 24 from slipping out of the shaft groove 112 .
  • the shaft groove 112 also has a certain height. Then, when the pivot shaft 24 is passively rotated under pressure, the pivot shaft 24 can also move up and down along the extending direction of the shaft groove 112 . That is, when the umbrella rib 20 is in a folded state, the pivot 24 is located at the bottom of the shaft groove 112 ; when the umbrella rib 20 is in an open state, the pivot 24 is located at the top of the shaft groove 112 .
  • the pivot 24 rotates in the shaft groove 112 and moves up and down along the shaft groove 112, then the hinged end 21 can be relatively easily rotated in place, facilitating the opening of the reflector.
  • the pivot 24 is at the top of the shaft groove 112 and can support each other with the limiting member 113 to ensure that the umbrella rib 20 can be stably in an open state.
  • the limiting member 113 may be a thumb screw.
  • a screw hole 114 is defined at the top of the hinge portion 111 .
  • An accommodating groove 115 for accommodating the ribs 20 is defined on the outer periphery of the chassis 11 .
  • the umbrella rib 20 When the umbrella rib 20 is in the storage state, the umbrella rib 20 can be received in the receiving groove 115, and then the reflector in the storage state is kept flush and the appearance is kept clean.
  • the number of accommodating grooves 115 can be set corresponding to the number of umbrella ribs 20, and there are multiple accommodating grooves 115.
  • the surface of the chassis 11 facing away from the hinge portion is provided with textures 116 .
  • the surface of the texture 116 is provided with a diffuse reflection layer (not shown).
  • the diffuse reflective layer can diffusely reflect light from the light source to ensure soft light in the reflector.
  • the chassis 11 is wave-shaped.
  • the texture 116 of the chassis 11 can be wave-shaped.
  • the texture can also be a stepped texture.
  • the slip ring 12 may be a metal ring with a certain height.
  • the slip ring 12 is fixed on the chassis 11 .
  • the slip ring 12 is fixedly connected to the chassis 11 through screws.
  • a screw hole is provided on the end surface of the slip ring 12 close to the chassis 11 , the slip ring 12 is arranged on the chassis 11 , and the fixing bolt 92 passes through the chassis 11 and is screwed and fixed to the slip ring 12 .
  • the slip ring 12 includes an annular sidewall 121 and a guide rail 122 disposed on the annular sidewall 121 .
  • the guide rail 122 is used to provide guidance for the rotation of the top plate 13 relative to the slip ring 12 .
  • the guide rail 122 extends along the circumferential direction of the annular side wall 121 .
  • the guide rail 122 extends along the annular sidewall 121 in a spiral shape. When the top plate 13 rotates along the guide rail 122 , the top plate 13 rises or falls in the axial direction of the slip ring 12 .
  • the guide rail 122 can also be in an irregular arc shape, as long as the guide rail 122 extends along the circumferential direction of the annular side wall 121 and has a projected length in the axial direction of the slip ring 12.
  • the guide rail The specific shape of 122 is not limited.
  • a plurality of guide rails 122 are distributed on the annular sidewall 121 of the slip ring 12 at intervals.
  • a plurality of guide rails 122 can enable the top plate 13 to rotate along the slip ring 12 stably.
  • a plurality of guide rails 122 are evenly distributed on the annular sidewall 121 . Specifically, there are three guide rails 122 . Then the central angle corresponding to the guide rail 122 is less than 120 degrees. Since there is a gap between two adjacent guide rails 122 , the angle of the central angle corresponding to the guide rails 122 is greater than 90 degrees.
  • the guide rail 122 includes a first end 1221 and a second end 1222 .
  • the guide rail 122 gradually extends downwards from the first end 1221 to the second end 1222 .
  • the guide rail 122 is also provided with a flat section 1223 .
  • the flat section 1223 is located on the same circumference of the slip ring 12 .
  • the flat section 1223 is located in the circumferential direction of the same cross section of the slip ring 12 . In the axial direction perpendicular to the slip ring 12 , the flat section 1223 is a horizontal section.
  • the flat section 1223 can be arranged at the first end 1221 or at the second end 1222 according to the corresponding movement state of the guide rail 122 .
  • the second end 1222 is provided with the flat section 1223 .
  • the guide rail 122 is a guide groove.
  • the guide groove can be in the shape of a through hole, or a groove, etc., as long as it can guide the rotation.
  • An escape groove 123 is defined on the end surface of the slip ring 12 away from the chassis 11 .
  • the avoidance groove 123 is used to correspond to the protruding structure such as the locking device on the outside of the installed imaging equipment, so as to prevent the height of the slip ring 12 from interfering with the installation and use of the imaging equipment.
  • the avoidance groove 123 is arranged between two adjacent guide rails 122, so the impact of the opening of the avoidance groove 123 on the strength of the slip ring 12 can be minimized, the strength of the slip ring 12 is guaranteed to be stable, and overpressure deformation is avoided.
  • the top disc 13 is an annular disc.
  • the top plate 13 can be made of metal to enhance the strength of the top plate 13 and improve the service life of the chuck assembly 10 .
  • a plurality of reinforcing ribs 130 are provided on the surface of the top plate 13 .
  • the ribs 130 can strengthen the strength of the top plate 13 to ensure that the top plate 13 can be used repeatedly.
  • the top disc 13 is rotatably sleeved on the slip ring 12 .
  • the top plate 13 rotates along the circumferential direction of the slip ring 12 , and the top plate 13 moves up and down along the axial direction of the slip ring 12 .
  • the lifting movement of the top plate 13 presses the hinged end 21 of the umbrella rib 20 to rotate, driving the umbrella rib 20 to open and fold.
  • the top plate 13 is fixedly provided with a guide shaft 131 facing the slip ring 12 .
  • a boss 132 is provided on the top surface of the top plate 13 .
  • the boss 132 defines a guide shaft hole 133 along the radial direction of the top plate 13 , and the guide shaft 131 is fixedly accommodated in the guide shaft hole 133 .
  • a fixing groove 134 is formed on a cylindrical surface of the guide shaft 131 .
  • the slip ring 12 is also provided with a fixing piece 135 for fixing the guide shaft 131 .
  • the fixing member 135 penetrates into the guide shaft hole 133 from the top of the boss 132 , and the fixing member 135 can be accommodated in the fixing groove 134 of the guide shaft 131 . Then the fixing member 135 limits the axial direction of the guide shaft 131 , so that the guide shaft 131 can be stably accommodated in the guide shaft hole 133 .
  • the fixing groove 134 is an arc-shaped groove.
  • the fixing member 135 is a fixing bolt.
  • the shape of the arc-shaped groove is adapted to the shape of the cylindrical surface of the fixing bolt, then the fixing bolt is at least partially accommodated in the arc-shaped groove, and the fixed bolt is fixed.
  • the bolts limit and fix the guide shaft 131 .
  • the guide shaft 131 can also be fixed on the top plate 13 by other methods, such as welding, riveting and other methods.
  • the guide shaft 131 is movably disposed on the guide rail 122 .
  • the guide shaft 131 rotates along the track of the guide rail 122 . Due to the guiding effect of the guide rail 122 , the top plate 13 moves up and down in the axial direction along the slip ring 12 .
  • the top plate 13 drives the reflector to open. Then the guide shaft 131 moves from the first end 1221 to the second end 1222 , and maintains its position at the flat section 1223 .
  • the top plate 13 needs to maintain a relatively large pressure to hold the hinged end of the rib, so the flat section 1223 can help the guide shaft 131 to stay in a stable state there, so that the reflector remains open. status.
  • the reflector is in a folding process.
  • the guide shaft 131 first passes through the flat section 1223 and moves from the second end 1222 to the first end 1221 .
  • the guide shaft 131 passes through the guide groove.
  • a shaft sleeve 136 is rotatably sleeved on the guide shaft 131, and the shaft sleeve 136 rolls along the guide groove.
  • the shaft sleeve 136 converts the sliding friction force between the guide shaft 131 and the guide groove into the rolling friction force between the shaft sleeve 136 and the guide groove, so as to reduce the friction force of the top plate 13 rotating relative to the slip ring 12 and facilitate the manipulation of the top plate.
  • Disk 13 rotates.
  • guide shafts 131 which are evenly distributed on the top plate 13 to ensure that the top plate 13 can move along the guide rail 122 stably.
  • bosses 132 there are multiple bosses 132 , guide shaft holes 133 , fixing pieces 135 , and shaft sleeves 136 , which are arranged correspondingly to the positions of the guide shafts 131 .
  • the rotation angle of the guide shaft 131 along the guide rail 122 is also approximately 90 degrees.
  • the rotation angle of about 90 degrees is relatively easy to operate for the operator, and is suitable for ergonomic design.
  • the chuck assembly 10 of the reflector in this embodiment further includes a needle roller 16 and a pressure plate 17 .
  • Both the needle roller plate 16 and the pressure plate 17 are sheathed on the slip ring 12 and disposed between the bottom plate 11 and the top plate 13 .
  • an annular receiving groove 137 is defined on a side of the top plate 13 facing the bottom plate 11 .
  • the receiving groove 137 is used for receiving the needle roller 16 .
  • the needle roller disc 16 includes a disc body 161 and a plurality of needle rollers 162 rotatably disposed on the disc body 161 .
  • the needle rollers 162 are cylinders of uniform size, a plurality of needle rollers 162 are distributed along the radial direction of the disk body 161, and the needle rollers rotate around their own axial directions.
  • the needle roller 162 can freely rotate on the disc body 161 .
  • the needle rollers 162 and the bottom surface of the receiving groove 137 of the top plate 13 resist each other, and the contact between the needle rollers 162 and the top plate 13 is a line contact.
  • a fixing edge 138 is formed on an outer periphery of the top plate 13 extending toward the bottom plate 11 .
  • the inner wall of the fixing edge 138 is provided with a slot 139 for installing the pressure plate 17 .
  • the slot 139 includes a transition section and a limiting section.
  • the pressure plate 17 enters the locking groove 139 through the transition section, and continues to slide into the limiting section, and the pressure plate 17 is limited in the locking groove 139 .
  • the pressure plate 17 is clamped into the slot 139 through an interference fit, and the chuck 17 needs to be limited in the slot 139 to prevent the chuck 17 from being separated from the top plate 13 . But the chuck 17 can also move freely, and the chuck 17 can rotate relative to the slip ring 12 .
  • connection between the inner wall of the fixing edge 138 and the outer peripheral edge of the pressure plate 17 can also be realized through other interference fit structures.
  • the pressure plate 17 is located below the needle roller plate 16 and above the chassis 11 .
  • the needle roller plate 16 is pressed between the pressure plate 17 and the top plate 13 .
  • the pressure plate 17 can be used not only to support the needle roller 16 , but also to press the hinged end 21 of the rib 20 .
  • the pressure plate 17 includes an inner ring body 171 and an outer ring body 172 disposed on the outer periphery of the inner ring body 171 .
  • the inner ring body 171 is correspondingly disposed at the opening of the receiving groove 137 of the top plate 13 , and the inner ring body 171 can limit the needle roller 16 in the receiving groove 137 .
  • the inner ring body 171 is arranged parallel to the needle roller disc 16 , and the inner ring body 171 is used to carry the needle roller disc 16 .
  • the surface of the inner ring body 171 facing the needle roller disc 16 is flat, so the needle rollers of the needle roller disc 16 and the inner ring body 171 maintain linear contact and resistance.
  • the top plate 13 rotates, because the needle rollers of the top plate 13 and the needle plate 16 are pressed against each other, the top plate 13 drives the needle rollers to rotate, and the needle rollers rotate, and the smaller force generated between the needle rollers and the pressure plate 17 Rolling friction force, the rolling friction force is not enough to make the pressure plate 17 rotate, and the pressure plate 17 remains stable. Moreover, the frictional resistance of rotating the top plate 13 is greatly reduced, which facilitates the rotating operation of the top plate 13 .
  • the outer ring body 172 is provided with an inclined surface 173 , and the inclined surface 173 is bent toward the chassis 11 .
  • the inclined surface 173 is used to press the hinged end 21 of the rib 20 , and the hinged end 21 moves along the inclined surface 173 .
  • the hinged end 21 of the rib 20 is in line contact with the slope 173 of the outer ring body 172 .
  • the top plate 13 When the top plate 13 is rotating, the top plate 13 moves up and down, and there is pressure between the top plate 13 and the hinged end 21 of the rib 20 . Then, the pressure point between the inclined surface 173 and the hinged end 21 is the stress point, and the hinged end 21 takes the pivot 24 as the rotation axis. Therefore, the hinged end 21 is pressed by the outer ring body 172 to form a moment capable of rotating the hinged end 21 .
  • the needle roller plate 16 can evenly transmit the pressure of the top plate 13 to the pressure plate 17, so the pressure on the pressure plate 17 is also evenly distributed.
  • the pressure plate 17 can also press the hinged ends 21 of the ribs relatively evenly, so that the pressure on the hinged ends 21 of each rib 20 is relatively uniform, and the rotation of multiple ribs remains consistent.
  • the chuck assembly 10 of the reflector further includes auxiliary pins 50 , auxiliary holes are provided on the outer surfaces of the top plate 13 and the bottom plate 11 , and the auxiliary pins 50 are correspondingly inserted into the auxiliary holes.
  • First auxiliary holes 1390 are respectively defined on the outer surface of the top plate 13 .
  • a second auxiliary hole 119 is defined on the outer surface of the chassis 11 . Both the first auxiliary hole 1390 and the second auxiliary hole 119 can be inserted into the auxiliary pin 50, and the auxiliary pin 50 can be conveniently held by the operator. The operator holds one auxiliary pin 50 respectively, and exerts force at the same time, the auxiliary pin 50 can increase the moment of the rotational force, so that the top plate 13 can be relatively rotated conveniently.
  • auxiliary holes 1390 is defined on the outer wall of the boss 132 of the top plate 13 .
  • a second auxiliary hole 119 is defined on an outer wall of the hinge portion of the chassis 11 .
  • first auxiliary holes 1390 and second auxiliary holes 119 there may be multiple first auxiliary holes 1390 and second auxiliary holes 119 respectively.
  • the operator can choose according to the convenience of use, and select two of the first auxiliary hole positions 1390 and the second auxiliary hole positions 119 , and the auxiliary hole positions with a relatively convenient operating distance are selected for operation.
  • the auxiliary hole position enhances the convenience of operation and is more humanized.
  • the central angle corresponding to the first auxiliary hole position 1390 and the second auxiliary hole position 119 should be greater than the central angle corresponding to the guide rail 122, so as to ensure the operator's rotation operation and enable the guide shaft 131 of the top plate 13 to move from The first end 1221 of the guide rail 122 moves to the second end 1222, so that a sufficient rotation angle occurs between the top plate 13 and the bottom plate 11, so that the umbrella rib 20 is fully opened.
  • the auxiliary pin 50 can be removed from the auxiliary hole without affecting the size and normal use of the chuck assembly 10 .
  • Auxiliary pin 50 also can be replaced by common screwdriver, metal bar etc. As long as it can be matched with the auxiliary hole to facilitate the rotation operation of the top plate 13 .
  • the guide shaft 131 of the top plate 13 is located at the first end 1221 of the guide rail 122 .
  • the top plate 13 is located at the end of the slip ring 12 away from the bottom plate 11 .
  • the hinged end 21 of the umbrella rib 20 maintains a vertical initial position, and the contact position between the hinged end 21 and the pressure plate 17 is closer to the outside of the slope 173 .
  • the pivot 24 of the hinged end 21 is located at the top of the shaft groove 112 .
  • the operator rotates the two auxiliary pins 50 to make the two auxiliary pins approach each other and drive the top plate 13 to rotate.
  • the guide shaft 131 moves along the guide rail 122 , and the top plate 13 moves close to the bottom plate 11 .
  • the top plate 13 presses the hinge end 21 through the needle plate 16 and the pressure plate 17 .
  • the hinged end 21 is affected by a rotational moment, and the hinged end 21 rotates toward the chassis 11 . While the hinged end 21 rotates around the pivot 24, the pivot 24 moves downward along the shaft groove 112, and the contact position between the hinged end 21 and the pressure plate 17 moves from outside to inside along the slope 173 until the rib 20 is fully opened.
  • the guide shaft 131 of the top plate 13 moves to the flat section 1223 of the second end 1222 of the guide rail 122 .
  • the top plate 13 stops rotating and remains in place.
  • the umbrella rib 20 remains open, and the contact position between the hinged end 21 and the pressure plate 17 is closer to the inner side of the pressure plate 17 .
  • the pivot 24 of the hinged end 21 is located at the bottom of the shaft groove 112 .
  • the flat section 1223 of the second end 1222 of the guide rail 122 can keep the guide shaft 131 positioned, which is beneficial to the positioning of the top plate 13 .
  • the operator rotates the two auxiliary pins to keep the two auxiliary pins away from each other and drives the top plate 13 to rotate in reverse.
  • the guide shaft 131 moves along the flat section 1223 of the guide rail 122 toward the first end 1221 , and the top plate 13 moves away from the bottom plate 11 .
  • the hinged end 21 is reduced by the rotational moment, and the hinged end 21 reversely rotates to the initial position.
  • the hinged end 21 rotates in reverse with the pivot 24 as the rotating shaft, the pivot 24 moves upward along the shaft groove 112, and the contact position between the hinged end 21 and the pressure plate 17 moves from inside to outside along the pressure plate 17 until the rib 20 is completely folded .
  • the above-mentioned chuck assembly 10 of the reflector can prevent the operator from opening each rib 20 one by one, and the ribs 20 can be opened by turning the top plate 13 . Moreover, when the umbrella rib 20 is folded, the top plate 13 rotates in the opposite direction, so that the limit on the umbrella rib 20 can be released, and the umbrella rib 20 can be folded. Therefore, when using the above-mentioned chuck assembly 10 for the reflector, the operator can avoid complicated and laborious operations, and the operation is simple and easy to use, which improves the convenience of the reflector.

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Abstract

一种卡盘组件（10）及包括卡盘组件（10）的反光罩。卡盘组件（10）包括底盘（11）、滑环（12）、顶盘（13）。底盘（11）用于承载多个与之铰接连接的伞骨（20）。滑环（12）固定设于底盘（11）上，滑环（12）包括环形侧壁（121）及设于环形侧壁（121）的导轨（122），导轨（122）沿环形侧壁（121）的周向延伸。顶盘（13）可旋转套设于滑环（12），顶盘（13）朝向滑环（12）固定设有导向轴（131），导向轴（131）可移动设置于导轨（122）。顶盘（13）沿滑环（12）的周向旋转，导向轴（131）沿导轨（122）移动，顶盘（13）沿滑环（12）的轴向升降；顶盘（13）的升降运动压持伞骨（20）的铰接端（21）转动。在打开或收折反光罩的时候，卡盘组件（10）可以避免操作人员费力操作，操作较为方便。

Description

反光罩及其卡盘组件 技术领域
本发明涉及拍摄器材，特别涉及一种反光罩及其卡盘组件。
背景技术
反光罩装在影室灯上，发出的光更柔和，拍摄时能消除照片上的光斑和阴影。反光罩大多通过呈伞状收折的伞骨来支撑反光布，形成反光罩的反光面。
反光罩的反光面越大，则光线更均匀、更柔美、色彩更鲜艳。为满足更好的拍摄效果，该反光罩的反光面积要求越来越大。但是，对于体积过大的反光罩，在对反光罩进行收折或打开的时候，需要分别对多个伞骨一一收折或打开，操作较为复杂。
发明内容
本发明的一个目的在于提供一种操作简单、使用方便的反光罩及其卡盘组件。
一种反光罩的卡盘组件，包括：
底盘，用于承载多个与之铰接连接的伞骨；
滑环，固定设于所述底盘上，所述滑环包括环形侧壁及设于所述环形侧壁的导轨，所述导轨沿所述环形侧壁的周向延伸；
顶盘，可旋转套设于所述滑环，所述顶盘朝向所滑环固定设有导向轴，所述导向轴可移动设置于所述导轨；
其中，所述顶盘沿所述滑环的周向旋转，所述导向轴沿所述导轨移动，所述顶盘沿所述滑环的轴向升降；所述顶盘的升降运动压持所述伞骨的铰接端转动。
在其中一实施方式中，所述导轨呈螺旋状沿环形侧壁延伸。
在其中一实施方式中，所述导轨为多个，多个所述导轨间隔分布于所述滑环的环形侧壁上。
在其中一实施方式中，所述导轨为导槽。
在其中一实施方式中，所述导向轴穿设于所述导槽内，所述导向轴上可转动套设有轴套，所述轴套沿所述导槽滚动。
在其中一实施方式中，所述导轨包括第一端及第二端，所述导轨从所述第一端逐渐向下延伸至所述第二端，所述第一端或第二端设有平段，所述平段位于所述滑环的同一圆周上。
在其中一实施方式中，所述顶盘的顶面设有凸台，所述凸台沿所述顶盘的径向开设有导轴孔，所述导向轴固定收容于所述导轴孔内。
在其中一实施方式中，所述底盘与所述顶盘之间还设有压盘及滚针盘，所述压盘用于压持所述伞骨的铰接端，所述滚针盘压持于所述压盘与所述顶盘之间，所述滚针盘包括盘体及多个可转动设于所述盘体上的滚针，多个所述滚针沿所述盘体的径向分布，所述滚针绕其自身轴向转动，所述滚针与所述顶盘及所述压盘之间的接触为线接触。
在其中一实施方式中，所述顶盘朝向所述底盘的侧面开设有环形的收容槽，所述滚针盘收容于所述收容槽内。
在其中一实施方式中，所述压盘包括的内环体及设于所述内环体外周缘的外环体，所述内环体平行于所述滚针盘设置，所述内环体用于承载所述滚针盘。
在其中一实施方式中，所述外环体设有斜面，所述斜面朝向所述底盘弯折，所述斜面用于压持所述伞骨的铰接端，所述铰接端沿所述斜面运动。
在其中一实施方式中，所述伞骨的铰接端与所述外环体的斜面保持线接触。
在其中一实施方式中，所述顶盘的外周边朝向所述底盘延伸形成有固定沿，所述固定沿设有卡槽，所述压盘的外周缘通过过盈配合滑入所述卡槽内，所述压盘限位于所述卡槽内。
在其中一实施方式中，还包括用于连接摄像设备的卡口，所述卡口与所述底盘可拆卸连接。
在其中一实施方式中，所述顶盘及所述底盘的外侧面分别开设有辅助孔位。
在其中一实施方式中，还包括辅助销，所述辅助销对应插入所述辅助孔位内。
在其中一实施方式中，开设于所述顶盘的辅助孔位为多个，开设于所述底盘的辅助孔位为多个。
一种反光罩，包括伞骨、反光布及卡盘组件，所述反光布可拆卸设于所述伞骨上，所述伞骨的铰接端铰接于所述底盘上。
在其中一实施方式中，所述伞骨远离所述卡盘组件的一端设有伞珠，所述伞骨穿设于所述伞珠内，所述伞珠的相对两侧设有一对埋线槽，所述埋线槽的底部开设有过线孔，所述过线孔连通两埋线槽。
在其中一实施方式中，所述伞珠上还设有定位槽，所述定位槽为两个，分别相对设于所述杆体的两侧。
由上述技术方案可知，本发明至少具有如下优点和积极效果：
上述反光罩的卡盘组件，可以避免操作人员分别一一打开各个伞骨，通过转动顶盘即可将伞骨撑开。并且，在收折伞骨的时候，顶盘反向转动，即可解除对伞骨的限位，将伞骨收折起来。因此，在使用上述反光罩的卡盘组件的时候，可以避免操作人员复杂、费力操作，操作简单、使用方便，提高反光罩的便利性。
附图说明
图1是本实施方式的反光罩处于收折状态的立体图；
图2为根据图1所示的反光罩处于打开状态的立体图；
图3为根据图2所示的反光罩的爆炸图；
图4为根据图2所示的反光罩的伞珠的立体图；
图5为根据图1所示的反光罩的俯视图；
图6为根据图5所示的反光罩沿B-B方向的剖视图；
图7为根据图3所示的反光罩的爆炸图的局部放大图；
图8为根据图3所示的反光罩的顶盘的爆炸图；
图9为根据图2所示的反光罩的剖视图；
图10为根据图5所示的反光罩沿A-A方向的剖视图。
附图标记：10、卡盘组件；11、底盘；110、加强筋；111、铰接部；112、轴槽；113、限位件；114、螺孔；115、容纳槽；116、纹路；119、第二辅助孔位；12、滑环；121、环形侧壁；122、导轨；1221、第一端；1222、第二端；1223、平段；123、避让槽；13、顶盘；130、加强筋；131、导向轴；132、凸台；133、导轴孔；134、固定槽；135、固定件；136、轴套；137、收容槽；138、固定沿；139、卡槽；1390、第一辅助孔位；14、卡口；141、凸起；142、凸沿；15、垫片；16、滚针盘；161、盘体；162、滚针；17、压盘；171、内环体；172、外环体；173、斜面；
20、伞骨；21、铰接端；22、铰接套；23、压持面；24、枢轴；25、伞珠；252、埋线槽；253、过线孔；254、定位槽；
30、反光布；31、开窗；50、辅助销；91、螺钉；92、固定螺栓。
具体实施方式
体现本发明特征与优点的典型实施方式将在以下的说明中详细叙述。应理解的是本发明能够在不同的实施方式上具有各种的变化，其皆不脱离本发明的范围，且其中的说明及图示在本质上是当作说明之用，而非用以限制本发明。
在本申请的描述中，需要理解的是，在附图所示的实施例中，方向或位置关系的指示(诸如上、下、左、右、前和后等)仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作。当这些元件处于附图所示的位置时，这些说明是合适的。如果这些元件的位置的说明发生改变时，则这些方向的指示也相应地改变。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
以下结合本说明书的附图，对本公开的较佳实施方式予以进一步地详尽阐述。
本公开提出一种反光罩及其卡盘组件。卡盘组件可以用于将摄像设备(图未示)固定连接于反光罩上，方便摄像设备的拍摄使用。摄像设备可以为各种灯光光源设备、摄像机、或变焦设备等。反光罩可以为柔光箱，也可以为抛物罩等。反光罩的一端开口用于装入光源，另一端开口为光源的光线的出光口。具体在本实施方式中，反光罩为抛物罩。当光源位于抛物罩的焦点的位置处，光线经过反光层将光线反射成平行光束，从反光罩的出光口射出。
请参阅图1及图2，具体在本实施方式中，反光罩包括卡盘组件10、多根伞骨20及反光布30。反光布30可拆卸设于伞骨20上。伞骨20的一端铰接于卡盘组件10上。伞骨20相对于卡盘组件10可呈伞状打开和收折，实现反光罩的打开与收起。其中，图1为反光罩处于收折状态图示，图2为反光罩处于打开状态的图示。
伞骨20为一狭长形用于支撑反光布的支撑杆。伞骨20具备一定的弹性及韧性，例如，伞骨20可以为纤维或金属杆材质。
请同时参阅图3，伞骨20靠近卡盘组件10的一端为铰接端21。该铰接端21外套设有铰接套22。铰接端21通过铰接套22与卡盘组件10连接。伞骨20穿设于铰接套22内。铰接套22可以为塑胶件。铰接套22的外部体积大于伞骨20的外部体积，便于卡盘组件10通过铰接套22对伞骨20进行操控。
具体地，铰接套22的外侧面设有弧形的压持面23。压持面23的表面为弧形面。弧形面有助于压持铰接端21带动伞骨20运动。铰接套22的相对两侧设有枢轴24。铰接端21以枢轴24为轴进行转动。
伞骨20远离卡盘组件10的一端设有伞珠25。伞骨20穿设于伞珠25内。伞珠25可以与反光布30保持固定连接。因此，伞珠25一方面可以将伞骨20的末端进行包覆，反光布通过伞珠25更好的与伞骨20固定连接。另一方面，伞珠25还可以用于安装光效附件，以增加反光罩的光效。例如，伞珠25可以用于安装柔光纱及束光格栅等。
请参阅图4，伞珠25的相对两侧设有一对埋线槽252。埋线槽252的底部开设有过线孔253，过线孔253连通两埋线槽252。缝线在过线孔253内穿过，并将反光布30缝合固定在伞珠25上。缝线会收容于埋线槽252内，保持伞珠25的表面整齐。
伞珠25上还设有定位槽254。定位槽254为两个，分别相对设于杆体的两侧。定位槽254可以便于平车模具与伞珠25定位，免了在缝线连接伞珠25和反光布30时伞珠25沿周向的转动。
反光布30包括内侧的反光层(图未标)及外侧的遮光层(图未标)。反光布30可以为柔光布。并且，反光布30上开设有可开合的开窗31。该开窗31用于穿过光源的电线缆等。该开窗31处覆盖有反光布，以避免反光罩的反光面完整，并避免光线从开窗31处射出。可以理解，该开窗31可以通过魔术贴实现开合。
本实施方式的卡盘组件10还可以用于将伞骨20及反光布30打开及收折。
请同时参阅图3，卡盘组件10可以包括底盘11、滑环12及顶盘13。伞骨20铰接于底盘11上。顶盘13沿滑环12的周向旋转的同时，顶盘13沿滑环12的轴向升降。顶盘13相对于底盘11的升降运动，会压持伞骨20的铰接端21并使其转动。伞骨20的铰接端21相对转动，使伞骨20打开或收纳。
上述反光罩的卡盘组件10，可以避免操作人员分别一一打开各个伞骨20，通过转动顶盘13即可将伞骨20撑开。并且，在收折伞骨20的时候，顶盘13反向转动，即可解除对伞骨20的限位，将伞骨20收折起来。因此，在使用上述反光罩的卡盘组件10的时候， 可以避免操作人员复杂、费力操作，操作简单、使用方便，提高反光罩的便利性。
底盘11为环形盘。底盘11可以为金属材质，以增强底盘11的强度，提高卡盘组件10的使用寿命。并且，底盘11的表面上设有多个加强筋110。加强筋110可以增强底盘11的强度，以保证底盘11能够反复多次使用。
卡盘组件10还包括用于连接光源的卡口14。卡口14用于连接摄像设备。具体本实施方式中，卡口可以连接的是灯光设备或对焦杆变焦设备。摄像设备以光源及配合光源移动的焦杆变焦设备为例进行说明。卡口14可以为保荣卡口，也可以为其他特殊卡口。此处对卡口14的具体的类型不做限定。
具体在本实施方式中，卡口14为外侧设有供摄像设备卡合连接的多个凸起141。该凸起141可实现卡口14与摄像设备的限位连接。可以理解，当卡口14为不同类型的卡口14的时候，凸起141也可以省略。卡口14还可以通过其他对应类型的结构形式与摄像设备限位连接。
卡口14与底盘11可拆卸连接。底盘11的内环用于安装卡口14。卡口14位于底盘11的内侧。并且，底盘11的中轴线方向与卡口14的中轴线方向与反光罩的光轴方向重合。并且，滑环12的中轴线方向、顶盘13的中轴方向与反光罩的光轴方向重合。
请同时参阅图5及图6，卡口14设有凸沿142。凸沿142可以通过螺钉91与底盘11固定连接，实现卡口14与底盘11的可拆卸连接。当卡口14的类型需要更换的时候，需要拆卸螺钉即可。在其他实施方式中，卡口14还可以通过卡合连接的方式与底盘11实现可拆卸连接。
卡盘组件10还包括垫片15。垫片15套设于螺钉上，并压持于卡口14的凸沿及底盘11上，以保证卡口14能稳定固定。
请同时参阅图7，底盘11的环形承载面用于承载多个与之铰接连接的伞骨20。底盘11的环形承载面上设有多个用于铰接伞骨20的铰接部111。铰接部111沿环形的支撑面的周向均匀分布。铰接部111凸设于底盘11的环形承载面上。
具体地，多个铰接部111相互间隔设置。铰接部111的两侧分别开设有用于收容伞骨20的枢轴24的轴槽112。轴槽112于铰接部111的顶面开设有开口，则铰接端21的枢轴24可以从该开口处进入轴槽112内。则位于同一铰接端21的两个枢轴24可以分别收容于相邻两铰接部111的轴槽112内，铰接端21与铰接部111形成铰接连接。
铰接部111的顶部还设有限位件113，限位件113对轴槽112的顶面开口进行封挡。当铰接端21与铰接部111形成铰接连接之后，铰接部111通过限位件113将轴槽112位于铰接部111顶面的开口进行封挡。限位件113可以避免枢轴24从轴槽112内滑出。
具体在本实施方式中，由于铰接部111具有一定的高度，则轴槽112也具有一定的高度。则枢轴24在受压而被动转动的时候，枢轴24也可以沿轴槽112的延伸方向发生上下运动。即，当伞骨20处于收折状态的时候，枢轴24位于轴槽112的底部；当伞骨20处于打开状态的时候，枢轴24位于轴槽112的顶部。当枢轴24在轴槽112内转动的同时沿 轴槽112上下移动，则铰接端21可以较为容易转动到位，便于反光罩的打开。
并且，当伞骨20完全打开的时候，枢轴24在轴槽112的顶部，可以与限位件113相互顶持，以保证伞骨20能够稳定地处于打开状态。
具体在本实施方式中，限位件113可以为大头螺钉。铰接部111的顶部开设有螺孔114。当大头螺钉螺接于铰接部111顶部的时候，大头螺钉的螺头会对轴槽112的开口产生一定的封挡，避免枢轴24从轴槽112内滑出。因此，限位件113可以实现对枢轴24的限位作用，并使伞骨20能够稳定处于打开状态。
底盘11的外周缘还开设有用于收容伞骨20的容纳槽115。当伞骨20处于收纳状态的时候，则伞骨20可以收入于容纳槽115内，则处于收纳状态的反光罩的保持齐平，外观保持整洁。容纳槽115的个数可以对应伞骨20的个数设置，容纳槽115为多个。
请参阅图6，底盘11背向铰接部的一侧表面设有纹路116。该纹路116的表面设有漫反射层(图未示)。该漫反射层可以将光源光线进行漫反射，以保证反光罩内的光线柔和。具体在本实施方式中，底盘11为波浪形。则底盘11的纹路116可以为波浪形。在其他实施方式中，该纹路还可以为阶梯状纹路。
请参阅图7，滑环12可以为具有一定高度的金属环。滑环12固定设于底盘11上。具体地，滑环12与底盘11的通过螺钉固定连接。滑环12靠近底盘11的端面上开设有螺孔，滑环12设于底盘11上，固定螺栓92穿过底盘11与滑环12螺接固定。
滑环12包括环形侧壁121及设于环形侧壁121的导轨122。导轨122用于为顶盘13相对于滑环12转动提供导向作用。导轨122沿环形侧壁121的周向延伸。导轨122呈螺旋状沿环形侧壁121延伸。当顶盘13沿着导轨122转动的时候，则顶盘13在滑环12的轴向上上升或下降。在其他实施方式中，导轨122还可以为不规则弧形形状，只要导轨122在沿环形侧壁121的周向延伸，并在滑环12的轴向上具有投影长度即可，此处对导轨122的具体形状不做限定。
具体在本实施方式中，导轨122为多个。多个导轨122间隔分布于滑环12的环形侧壁121上。多个导轨122可以使顶盘13能够稳定地沿滑环12转动。
多个导轨122均匀分布于环形侧壁121上。具体地，导轨122为三个。则导轨122所对应的圆心角的角度小于120度。由于相邻两导轨122之间存在间隙，则导轨122所对应的圆心角的角度大于为90度。
并且，导轨122包括第一端1221及第二端1222。导轨122从第一端1221逐渐向下延伸至所述第二端1222。导轨122还设有平段1223。平段1223位于滑环12的同一圆周上。该平段1223位于滑环12的同一个横截面的周向上。在沿垂直于滑环12的轴向上，平段1223为一水平段。该平段1223根据导轨122对应的运动状态可以设于第一端1221，或者设于第二端1222。具体在本实施方式中，第二端1222设有该平段1223。
具体在本实施方式中，导轨122为导槽。导槽可以为通孔形，或者为凹槽等，只要能够对转动起到导向作用即可。
滑环12远离底盘11的端面上开设有避让槽123。该避让槽123用于对应所安装摄像设备外侧的锁紧装置等凸起结构，避免滑环12的高度，对摄像设备的安装及使用产生干涉。避让槽123可以为多个。
具体地，避让槽123为三个。避让槽123设于相邻两个导轨122之间，因此可以尽量减小避让槽123的开槽对滑环12的强度的影响，保证滑环12的强度稳定，避免过压变形。
请参阅图8，顶盘13为环形盘。顶盘13可以为金属材质，以增强顶盘13的强度，提高卡盘组件10的使用寿命。并且，顶盘13的表面上设有多个加强筋130。加强筋130可以增强顶盘13的强度，以保证顶盘13能够反复多次使用。
顶盘13可旋转套设于滑环12上。顶盘13沿滑环12的周向旋转，顶盘13沿滑环12的轴向升降。顶盘13的升降运动压持伞骨20的铰接端21转动，驱动伞骨20打开和收折。
顶盘13朝向滑环12固定设有导向轴131。具体在本实施方式中，顶盘13的顶面设有凸台132。凸台132沿顶盘13的径向开设有导轴孔133，导向轴131固定收容于导轴孔133内。并且，导向轴131的柱面上设有固定槽134。
滑环12还设有用于固定导向轴131的固定件135。固定件135从凸台132的顶部穿进导轴孔133内，固定件135可收容于导向轴131的固定槽134内。则固定件135对导向轴131的轴向方向进行限位，以使导向轴131能够稳定收容于导轴孔133内。
具体地，固定槽134为弧形凹槽。固定件135为固定螺栓。当固定螺栓从凸台132的顶面螺接入导轴孔133内，弧形凹槽的形状于固定螺栓的柱面形状相适配，则固定螺栓至少部分收容于弧形凹槽内，固定螺栓对导向轴131进行限位固定。
在其他实施方式中，导向轴131还可以通过其他方式固定设置于顶盘13上，例如，焊接、铆接等方式。
请同时参阅图9，导向轴131可移动设置于导轨122。当顶盘13相对于滑环12转动的时候，导向轴131沿导轨122的轨迹转动。由于导轨122的导向作用，在沿滑环12的轴向方向上，顶盘13升降运动。
具体在本实施方式中，当顶盘13在沿滑环12的轴向方向上下降运动的时候，顶盘13驱动反光罩打开。则导向轴131由第一端1221运动到第二端1222，并在平段1223处保持定位。由于反光罩处于打开状态的时候，顶盘13需要保持较大的压力压持住伞骨的铰接端，则平段1223可以有利于导向轴131在该处保持停留稳定状态，使反光罩保持打开的状态。当顶盘13在沿滑环12的轴向方向上上升运动的时候，反光罩处于收折过程。导向轴131先经过平段1223，由第二端1222运动到第一端1221。
具体在本实施方式中，导向轴131穿设于导槽内。导向轴131上可转动套设有轴套136，轴套136沿导槽滚动。轴套136将导向轴131与导槽之间的滑动摩擦力，转化为轴套136与导槽之间的滚动摩擦力，减小顶盘13相对于滑环12转动的摩擦力，便于操控顶盘13转动。
导向轴131为多个，并且均匀分布于顶盘13上，以保证顶盘13能够稳定沿导轨122 移动。相应地，凸台132、导轴孔133、固定件135、轴套136均为多个，对应导向轴131的位置进行对应设置。
具体地，导轨为122为三个，则导向轴131也为三个。三个导向轴131分布对应收容于三个导轨122内。则导向轴131沿导轨122的运动，由于导轨122所对应的圆心角的角度大致为90度，则导向轴131沿导轨122的转动角度也大致为90度。当转动顶盘13的时候，90度左右的转动角度，相对于操作人员而言，较为容易操作，适合人体工学设计。
请再次参阅图3，本实施方式的反光罩的卡盘组件10还包括滚针盘16及压盘17。滚针盘16及压盘17均套设于滑环12上，且设于底盘11与顶盘13之间。
请参阅图3及图10，顶盘13朝向底盘11的侧面开设有环形的收容槽137。收容槽137用于收容滚针盘16。滚针盘16包括盘体161及多个可转动设于盘体161上的滚针162。滚针162为大小均匀的圆柱，多个滚针162沿盘体161的径向分布，滚针绕其自身轴向转动。滚针162能够在盘体161上自由转动。滚针162与顶盘13的收容槽137的底面之间相互抵持，且滚针162与顶盘13之间的接触为线接触。
顶盘13的外周边朝向底盘11延伸形成有固定沿138。具体在本实施方式中，固定沿138的内侧壁设有用于安装压盘17的卡槽139。卡槽139包括过渡段及限位段。压盘17通过过渡段进入卡槽139内，继续滑动至限位段内，压盘17限位于卡槽139内。压盘17通过过盈配合卡入卡槽139内，卡盘17需限位于卡槽139内，避免卡盘17与顶盘13相互分离。但是卡盘17还可以自由活动，卡盘17可以相对于滑环12转动。
在其他实施方式中，固定沿138的内侧壁与压盘17的外周缘之间还可以通过其他过盈配合结构实现连接。
压盘17设于滚针盘16的下方，底盘11的上方。滚针盘16压持于压盘17与顶盘13之间。压盘17即能够用于支撑滚针盘16，又能够用于压持伞骨20的铰接端21。
并且，具体在本实施方式中，压盘17包括的内环体171及设于内环体171外周缘的外环体172。内环体171对应设于顶盘13收容槽137的开口处，则内环体171可以将滚针盘16限位于该收容槽137内。内环体171平行于滚针盘16设置，内环体171用于承载滚针盘16。内环体171朝向滚针盘16的表面平整，则滚针盘16的滚针与内环体171之间保持线接触抵持。
当顶盘13转动的时候，由于顶盘13与滚针盘16的滚针相互压持，则顶盘13带动滚针转动，滚针转动，滚针与压盘17之间产生的较小的滚动摩擦力，该滚动摩擦力不足以使压盘17发生转动，压盘17保持稳定。并且，转动顶盘13的摩擦阻力得到大大减小，便于顶盘13的转动操作。
外环体172设有斜面173，斜面173朝向底盘11弯折。斜面173用于压持伞骨20的铰接端21，铰接端21沿斜面173运动。伞骨20的铰接端21与外环体172的斜面173保持线接触。
当顶盘13在旋转转动，顶盘13上下移动，顶盘13与伞骨20的铰接端21之间存在 压力。则斜面173与铰接端21的压持处为受力点，铰接端21以枢轴24为转轴。因此，外环体172压持铰接端21之间形成能够使铰接端21转动的力矩。
并且，滚针盘16可以将顶盘13的压力均匀传递至压盘17上，则压盘17上的压力也分布均匀。压盘17也可以较为均匀的压持伞骨的铰接端21，则每个伞骨20的铰接端21受到的压力也较为均匀，多个伞骨的转动保持一致。
请参阅图1及图2，反光罩的卡盘组件10还包括辅助销50，顶盘13及底盘11的外侧面分别开设有辅助孔位，辅助销50对应插入辅助孔位内。
顶盘13的外侧面分别开设有第一辅助孔位1390。底盘11的外侧面开设有第二辅助孔位119。第一辅助孔位1390、第二辅助孔位119均可以插入辅助销50，该辅助销50可以方便操作人员手持。操作人员分别把持一个辅助销50，同时用力，辅助销50可以增大转动力的力矩，可以方便将顶盘13发生相对转动。
辅助孔位的开设位置要求强度足够，以保证顶盘13及底盘11的强度。具体地，顶盘13的凸台132的外侧壁开设第一辅助孔位1390。底盘11的铰接部的外侧壁开设第二辅助孔位119。
并且，第一辅助孔位1390、第二辅助孔位119可以分别为多个。操作人员可以根据使用方便进行选择，选取其中两个第一辅助孔位1390、第二辅助孔位119，操作距离比较方便的辅助孔位进行操作。辅助孔位增强操作的便利性，更为人性化。具体地，第一辅助孔位1390与第二辅助孔位119之间所对应的圆心角应大于导轨122所对应的圆心角，保证操作人员的转动操作，能够使顶盘13的导向轴131从导轨122的第一端1221运动到第二端1222，使顶盘13与底盘11之间发生足够的转动角度，以使伞骨20充分打开。
当转动完成之后，该辅助销50可以从该辅助孔位上拆下，不影响该卡盘组件10的体积大小及正常使用。
辅助销50也可以由普通的螺丝刀，金属棒等替代。只要能够与辅助孔位配合，方便顶盘13转动操作即可。
请参阅图6，在上述反光罩处于收折状态的时候，顶盘13的导向轴131位于导轨122的第一端1221。此时顶盘13位于滑环12的远离底盘11的一端。伞骨20的铰接端21保持竖直的初始位置，铰接端21与压盘17的接触位置较为靠近斜面173的外侧。铰接端21的枢轴24位于轴槽112的顶部。
当需要打开反光罩的时候，操作人员通过转动两辅助销50，使两辅助销相互靠近，带动顶盘13转动。顶盘13转动的过程中，导向轴131沿导轨122移动，顶盘13靠近底盘11运动。顶盘13通过滚针盘16、压盘17压持铰接端21。该铰接端21受转动力矩的作用，铰接端21朝向底盘11转动。铰接端21以枢轴24为转轴转动的同时，枢轴24沿轴槽112向下运动，铰接端21与压盘17的接触位置沿斜面173由外向内移动，直至使伞骨20完全打开。
请参阅图9，在上述反光罩处于打开状态的时候，顶盘13的导向轴131运动至导轨 122的第二端1222的平段1223。顶盘13停止转动，并保持定位。伞骨20保持打开状态，铰接端21与压盘17的接触位置较为靠近压盘17的内侧。铰接端21的枢轴24位于轴槽112的底部。导轨122的第二端1222的平段1223可以使导向轴131能够保持定位，有利于顶盘13的定位。
当需要收折反光罩的时候，操作人员通过转动两辅助销，使两辅助销相互远离，带动顶盘13反向转动。顶盘13反向转动的过程中，导向轴131沿导轨122的平段1223反向朝向第一端1221移动，顶盘13远离底盘11运动。该铰接端21受转动力矩的减小，铰接端21反向转动至初始位置。铰接端21以枢轴24为转轴反向转动，枢轴24沿轴槽112向上运动，铰接端21与压盘17的接触位置沿压盘17由内向外移动，直至使伞骨20完全收折。
上述反光罩的卡盘组件10，可以避免操作人员分别一一打开各个伞骨20，通过转动顶盘13即可将伞骨20撑开。并且，在收折伞骨20的时候，顶盘13反向转动，即可解除对伞骨20的限位，将伞骨20收折起来。因此，在使用上述反光罩的卡盘组件10的时候，可以避免操作人员复杂、费力操作，操作简单、使用方便，提高反光罩的便利性。
虽然已参照几个典型实施方式描述了本发明，但应当理解，所用的术语是说明和示例性、而非限制性的术语。由于本发明能够以多种形式具体实施而不脱离发明的精神或实质，所以应当理解，上述实施方式不限于任何前述的细节，而应在随附权利要求所限定的精神和范围内广泛地解释，因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要求所涵盖。

Claims (20)

  1. 一种反光罩的卡盘组件，其特征在于，包括：
    底盘，用于承载多个与之铰接连接的伞骨；
    滑环，固定设于所述底盘上，所述滑环包括环形侧壁及设于所述环形侧壁的导轨，所述导轨沿所述环形侧壁的周向延伸；
    顶盘，可旋转套设于所述滑环，所述顶盘朝向所滑环固定设有导向轴，所述导向轴可移动设置于所述导轨；
    其中，所述顶盘沿所述滑环的周向旋转，所述导向轴沿所述导轨移动，所述顶盘沿所述滑环的轴向升降；所述顶盘的升降运动压持所述伞骨的铰接端转动。
  2. 根据权利要求1所述的反光罩的卡盘组件，其特征在于，所述导轨呈螺旋状沿环形侧壁延伸。
  3. 根据权利要求1所述的反光罩的卡盘组件，其特征在于，所述导轨为多个，多个所述导轨间隔分布于所述滑环的环形侧壁上。
  4. 根据权利要求1所述的反光罩的卡盘组件，其特征在于，所述导轨为导槽。
  5. 根据权利要求4所述的反光罩的卡盘组件，其特征在于，所述导向轴穿设于所述导槽内，所述导向轴上可转动套设有轴套，所述轴套沿所述导槽滚动。
  6. 根据权利要求1所述的反光罩的卡盘组件，其特征在于，所述导轨包括第一端及第二端，所述导轨从所述第一端逐渐向下延伸至所述第二端，所述第一端或第二端设有平段，所述平段位于所述滑环的同一圆周上。
  7. 根据权利要求1所述的反光罩的卡盘组件，其特征在于，所述顶盘的顶面设有凸台，所述凸台沿所述顶盘的径向开设有导轴孔，所述导向轴固定收容于所述导轴孔内。
  8. 根据权利要求1所述的反光罩的卡盘组件，其特征在于，所述底盘与所述顶盘之间还设有压盘及滚针盘，所述压盘用于压持所述伞骨的铰接端，所述滚针盘压持于所述压盘与所述顶盘之间，所述滚针盘包括盘体及多个可转动设于所述盘体上的滚针，多个所述滚针沿所述盘体的径向分布，所述滚针绕其自身轴向转动，所述滚针与所述顶盘及所述压盘之间的接触为线接触。
  9. 根据权利要求8所述的反光罩的卡盘组件，其特征在于，所述顶盘朝向所述底盘的侧面开设有环形的收容槽，所述滚针盘收容于所述收容槽内。
  10. 根据权利要求8所述的反光罩的卡盘组件，其特征在于，所述压盘包括的内环体及设于所述内环体外周缘的外环体，所述内环体平行于所述滚针盘设置，所述内环体用于承载所述滚针盘。
  11. 根据权利要求10所述的反光罩的卡盘组件，其特征在于，所述外环体设有斜面，所述斜面朝向所述底盘弯折，所述斜面用于压持所述伞骨的铰接端，所述铰接端沿所述斜面运动。
  12. 根据权利要求11所述的反光罩的卡盘组件，其特征在于，所述伞骨的铰接端与 所述外环体的斜面保持线接触。
  13. 根据权利要求8所述的反光罩的卡盘组件，其特征在于，所述顶盘的外周边朝向所述底盘延伸形成有固定沿，所述固定沿设有卡槽，所述压盘的外周缘通过过盈配合滑入所述卡槽内，所述压盘限位于所述卡槽内。
  14. 根据权利要求1所述的反光罩的卡盘组件，其特征在于，还包括用于连接摄像设备的卡口，所述卡口与所述底盘可拆卸连接。
  15. 根据权利要求1所述的反光罩的卡盘组件，其特征在于，所述顶盘及所述底盘的外侧面分别开设有辅助孔位。
  16. 根据权利要求15所述的反光罩的卡盘组件，其特征在于，还包括辅助销，所述辅助销对应插入所述辅助孔位内。
  17. 根据权利要求15所述的反光罩的卡盘组件，其特征在于，开设于所述顶盘的辅助孔位为多个，开设于所述底盘的辅助孔位为多个。
  18. 一种反光罩，其特征在于，包括伞骨、反光布及权利要求1-17任一项所述的卡盘组件，所述反光布可拆卸设于所述伞骨上，所述伞骨的铰接端铰接于所述底盘上。
  19. 根据权利要求18所述的反光罩，其特征在于，所述伞骨远离所述卡盘组件的一端设有伞珠，所述伞骨穿设于所述伞珠内，所述伞珠的相对两侧设有一对埋线槽，所述埋线槽的底部开设有过线孔，所述过线孔连通两埋线槽。
  20. 根据权利要求18所述的反光罩，其特征在于，所述伞珠上还设有定位槽，所述定位槽为两个，分别相对设于所述杆体的两侧。
    Figure PCTCN2022092780-appb-100001
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