CN117653473B - Wheelchair armrest mechanism - Google Patents
Wheelchair armrest mechanism Download PDFInfo
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- CN117653473B CN117653473B CN202410134347.9A CN202410134347A CN117653473B CN 117653473 B CN117653473 B CN 117653473B CN 202410134347 A CN202410134347 A CN 202410134347A CN 117653473 B CN117653473 B CN 117653473B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 230000009471 action Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a wheelchair armrest mechanism, which is used for a seat hinged with a backrest, and comprises: the middle part of the armrest main body is hinged to the backrest; the telescopic adjusting component comprises an adjusting telescopic seat and a locking component, and the adjusting telescopic seat is hinged to one end of the armrest main body; one end of the telescopic connecting rod is hinged to the seat, the other end of the telescopic connecting rod is slidably mounted in the adjusting telescopic seat, the telescopic connecting rod is further inserted on the locking assembly, and the locking assembly is suitable for being moved to a first state or a second state: the locking assembly limits sliding movement of the pantograph linkage over the adjustable telescopic seat when the locking assembly is in the first state. The invention can realize linkage of the armrests and the backrest, can naturally place the arms on the armrests in the state that the backrest of the wheelchair lies flat, and can rotate the armrests at any angle without affecting the use of the wheelchair.
Description
Technical Field
The invention relates to a wheelchair armrest mechanism, and belongs to the technical field of electric wheelchairs.
Background
After searching the prior art, chinese patent publication No. CN215273991U discloses a reclining electric wheelchair in which a reclining function of a seat is achieved, but it is found that armrests cannot be interlocked with a backrest during use, so that when the backrest of the wheelchair is reclined, armrests fixed on the backrest are also flipped upward, and the height of the armrests needs to be manually adjusted. This may result in the user's arm not being able to rest or operate the controller conveniently and comfortably on the armrest.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a wheelchair armrest mechanism, which can realize linkage of armrests and backrests, can naturally place the arms on the armrests in a state that the wheelchair backrest lies flat, and can rotate the armrests by any angle without affecting the use of the wheelchair.
In order to solve the technical problems, the technical scheme of the invention is as follows: a wheelchair armrest mechanism for use with a seat having a backrest hinged thereto, comprising:
The middle part of the armrest body is hinged on the backrest;
The telescopic adjusting component comprises an adjusting telescopic seat and a locking component, and the adjusting telescopic seat is hinged to one end of the armrest main body;
The telescopic connecting rod, telescopic connecting rod one end articulates on the seat, the other end slidable mounting is in adjust in the flexible seat, telescopic connecting rod still cartridge is in locking component is last, locking component is suitable for being moved to first state or second state: when the locking assembly is in a first state, the locking assembly limits the sliding of the telescopic connecting rod on the adjustable telescopic seat; when the locking assembly is in the second state, the locking assembly releases the sliding restriction of the telescopic link on the adjustable telescopic seat to rotate the armrest body about the hinged connection point with the backrest;
And the armrest adjusting unlocking component is connected with the locking assembly, and the locking assembly is enabled to be in a first state or a second state by actuating the armrest adjusting unlocking component to actuate the locking assembly.
Further, to enable unlocking and adjustment on the armrest body, the armrest adjustment unlocking component includes:
A wire handling assembly mounted on the armrest body;
The stay wire is arranged in the armrest main body, and one end of the stay wire is connected with the stay wire operating assembly;
A control conductive assembly connected to the other end of the pull wire;
the stay wire operating assembly is suitable for driving the control conducting assembly by pulling the stay wire so as to trigger the locking assembly to loosen the fixing of the telescopic connecting rod.
Further, to effect operation of the wire, the wire handling assembly includes:
the armrest unlocking button is movably arranged on the armrest main body;
The umbrella-shaped rotating block is rotatably arranged in the armrest main body;
The umbrella-shaped rotating block return pressure spring is abutted between the umbrella-shaped rotating block and the armrest main body;
The umbrella-shaped rotating block is connected with one end of the stay wire;
the armrest unlocking button is abutted with the umbrella-shaped rotating block.
Further, to transfer operation of the pull wire to the locking assembly, the control conductive assembly includes:
The middle part of the shifting lever is hinged to the armrest main body, and one end of the shifting lever is connected with the other end of the stay wire;
The movable block is axially movably arranged at the hinged connection point of the armrest main body and the adjusting telescopic seat, one end of the movable block is connected with the other end of the deflector rod, and the other end of the movable block is provided with a cone part;
the middle part of the trigger rod is hinged in the adjusting telescopic seat, one end of the trigger rod is in butt joint with the conical part, and the other end of the trigger rod is connected with the locking assembly.
Further, the adjusting telescopic seat is provided with a sliding groove suitable for sliding of the telescopic connecting rod.
Further, the locking assembly includes:
the locking plate is provided with a rectangular slotted hole which is suitable for being penetrated by the telescopic connecting rod;
the locking plate compression spring is suitable for abutting one side of the locking plate so as to enable a rectangular slot hole of the locking plate to be inclined under the action of the elasticity of the locking plate compression spring to abut and lock the telescopic connecting rod; wherein,
The handrail is adjusted the unblock part and is offset with the opposite side of locking plate, handrail is adjusted the unblock part and is suitable for driving the locking plate removes overcoming the elasticity of locking plate pressure spring makes the rectangle slotted hole loosen the locking of flexible connecting rod.
Further, two locking plates are arranged and are overlapped, and the handrail adjusting unlocking part is abutted against the other side of the locking plate at the upper part.
Further, in order to facilitate the installation, fixing and quick disassembly of the controller, the other end of the armrest main body is also provided with a controller installation groove suitable for installing the controller;
The controller is provided with a fixing mechanism;
The handrail main body is provided with a controller quick-release knob, and after the controller is partially inserted into the controller mounting groove, the controller quick-release knob is suitable for unlocking the fixing mechanism by acting so as to take out the controller from the controller mounting groove.
Further, in order to facilitate the penetration of the cable of the controller into the backrest, a threading hole for threading the cable of the controller is further formed in the hinged connection point of the backrest and the armrest main body.
Further, the threading hole and the hinged connection point of the armrest main body and the adjusting telescopic seat are provided with shaft locking plates.
By adopting the technical scheme, the invention has the following beneficial effects:
In the invention, the two armrest main bodies are arranged at two sides of the backrest through the hinge connection, and in the state that the armrest adjusting unlocking component is not started, the armrest main bodies are horizontally arranged along with the backrest in a backward direction, and the height of the armrest main bodies can be lowered along with the backrest and horizontally moved along with the length of the telescopic adjusting component, so that a user can naturally place the arm on the armrest main bodies in the state that the backrest is horizontally arranged; if the armrest adjusting unlocking part is started, no matter in which state the backrest is, the armrest main body can be fixed to the telescopic connecting rod through loosening the telescopic adjusting part, so that the armrest main body can rotate at any angle around the hinged position of the backrest, the use of the backrest is not affected, and the use comfort and convenience are remarkably improved.
In addition, the controller mounting groove convenient to control is particularly formed in the handrail main body, the controller quick-release knob is arranged on the handrail main body, and the controller can be conveniently dismounted and mounted through the controller quick-release knob, so that the use is very convenient. Meanwhile, the wire holes for the wire of the cable of the controller are formed in the hinged positions of the backrest and the armrest main body, so that the wire holes can be used for avoiding the problems of pulling and the like possibly occurring in the use process of the cable, the use is safer, and the cable is laid neatly.
In summary, the invention fully considers the use habit, can effectively solve the problem in the use process of the armrests and the backrest, and provides better use experience. The wheelchair has the advantages of simple operation, strong adaptability and the like, and brings great convenience to wheelchair users.
Drawings
FIG. 1 is an isometric view of a wheelchair armrest mechanism of the present invention;
FIG. 2 is a schematic perspective view of the arm rest mechanism of the wheelchair of the present invention;
FIG. 3 is a schematic perspective view of the installation of the controller of the wheelchair armrest mechanism of the present invention;
FIG. 4 is a schematic perspective view of the wheelchair armrest mechanism of the present invention with the backrest lying flat;
FIG. 5 is a front view of the wheelchair armrest mechanism of the present invention with the back rest lying flat;
FIG. 6 is a schematic perspective view of a wheelchair armrest mechanism according to the present invention;
FIG. 7 is a perspective view of a wheelchair armrest mechanism according to the present invention;
FIG. 8 is a schematic perspective view of the wheelchair armrest mechanism of the present invention with the backrest folded;
FIG. 9 is a partial cross-sectional view of a perspective structure of the wheelchair armrest mechanism of the present invention;
Fig. 10 is a partial enlarged view of a portion a in fig. 9;
fig. 11 is a partial enlarged view of a portion B in fig. 9;
fig. 12 is a partial enlarged view of a portion C in fig. 9;
FIG. 13 is an exploded view of the wheelchair armrest mechanism of the present invention;
fig. 14 is a partial enlarged view of the portion D in fig. 13;
fig. 15 is a partial perspective view of the wheelchair armrest mechanism of the present invention.
Detailed Description
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1-15, a wheelchair armrest mechanism for use with a seat 200 having a backrest 100 hinged thereto, comprising:
the armrest body 300, the middle part of the armrest body 300 is hinged on the backrest 100;
the telescopic adjusting part comprises an adjusting telescopic seat 610 and a locking assembly, and the adjusting telescopic seat 610 is hinged at one end of the armrest main body 300;
The telescopic link 400, one end of the telescopic link 400 is hinged on the seat 200, the other end is slidably mounted in the adjusting telescopic seat 610, the telescopic link 400 is also inserted on a locking assembly, and the locking assembly is suitable to be actuated to a first state or a second state: the locking assembly limits sliding movement of the expansion link 400 on the adjustment expansion seat 610 when the locking assembly is in the first state; when the locking assembly is in the second state, the locking assembly releases the sliding constraint of the pantograph linkage 400 on the adjustment telescopic seat 610 to rotate the armrest body 300 about the hinged connection point with the backrest 100;
And the armrest adjusting unlocking component is connected with the locking assembly, and the locking assembly is enabled to be in a first state or a second state by actuating the armrest adjusting unlocking component to actuate the locking assembly.
In the present embodiment, as shown in fig. 1-2, 4-9 and 13, the armrest body 300 is provided with two, and is hinged at both sides of the backrest 100, in a state that the armrest adjusting unlocking part is not activated, as the backrest 100 is laid backwards, the height of the armrest body 300 is lowered and horizontally moved along with the backrest 100 due to the fixed length of the telescopic adjusting part, which enables a user to naturally place an arm on the armrest body 300 in a state that the backrest 100 is laid horizontally; if the armrest adjusting and unlocking part is started, no matter in which state the backrest 100 is, the armrest main body 300 can rotate at any angle around the hinge of the backrest 100 by loosening the fixing of the telescopic adjusting part to the telescopic connecting rod 400, the use comfort and convenience of the backrest 100 are obviously improved without affecting the use of the backrest 100, the armrest main body 300 is provided with the armrest panel 303 made of the detachable PU material, other materials can be used, and the armrest main body 300 can be made of aluminum alloy materials.
Specifically, as shown in fig. 1-2, fig. 4-9, and fig. 13, the armrest adjustment unlocking component may have the following structure:
a wire operating assembly mounted on the armrest body 300;
The stay wire 510, the stay wire 510 is arranged in the armrest main body 300, and one end of the stay wire 510 is connected with the stay wire operating component;
a control conductive assembly connected to the other end of the pull wire 510;
The wire handling assembly is adapted to actuate the control conductor assembly by pulling the wire 510 to trigger the lock assembly to release the attachment of the pantograph linkage 400.
In this embodiment, as shown in fig. 1-2, fig. 4-9 and fig. 13, the function of the armrest adjustment unlocking component is to facilitate the control of the telescopic link 400 on the telescopic adjustment component on the armrest body 300, and the stay wire 510 can transmit the operation command sent by the stay wire operating component on the armrest body 300 to the control conducting component, so that the armrest body 300 spans a long distance and is reliable and stable in use; when the pull wire operating assembly is pressed, the pull wire operating assembly drives the pull wire 510 to move, and the movement of the pull wire 510 is transmitted to the telescopic adjusting component through the control transmission assembly, so that the telescopic adjusting component releases the locking of the telescopic connecting rod 400, and at the moment, the armrest main body 300 can rotate around the hinged connection point with the backrest 100, and the rotation action of the armrest main body 300 is realized; upon release of the wire handling assembly, the telescoping adjustment assembly will relock the telescoping rod 400, with the position of the stationary armrest body 300.
Specifically, as shown in FIGS. 1-2 and 4-10 and 13-14, the wire handling assembly may be of the following construction:
a handrail unlocking button 521, the handrail unlocking button 521 being movably provided on the handrail main body 300;
umbrella-shaped rotating blocks 531, the umbrella-shaped rotating blocks 531 being rotatably installed in the armrest main body 300;
An umbrella-shaped turning block return pressure spring 532, the umbrella-shaped turning block return pressure spring 532 being abutted between the umbrella-shaped turning block 531 and the armrest main body 300;
The umbrella-shaped rotating block 531 is connected with one end of the stay wire 510;
the armrest unlock button 521 abuts against the umbrella-shaped rotation block 531.
In this embodiment, as shown in fig. 1-2, 4-10 and 13-14, the armrest unlocking button 521 is provided with a circle of protrusions extending from the inside to the outside of the armrest body 300, and a general extension may be installed under the armrest body 300 to prevent false triggering; when the armrest unlocking button 521 is pressed, the pressure of the armrest unlocking button 521 drives the stay wire 510 to move through the umbrella-shaped rotating block 531; when the armrest unlocking button 521 is released, the restoring force of the umbrella-shaped turning block restoring pressure spring 532 drives the umbrella-shaped turning block 531 to restore, and the pull wire 510 and the armrest unlocking button 521 also follow the restoration.
Specifically, as shown in FIGS. 1-2, 4-6, 8-9, 12-13, and 15, the control conductive assembly may be of the following construction:
A shift lever 541, the middle part of the shift lever 541 is hinged on the armrest main body 300, and one end of the shift lever 541 is connected with the other end of the stay wire 510;
The movable block 542 is movably arranged at the hinged connection point of the armrest main body 300 and the adjusting telescopic seat 610 in an axial moving way, one end of the movable block 542 is connected with the other end of the deflector 541, and the other end of the movable block 542 is provided with a cone part;
The middle part of the trigger lever 620 is hinged in the adjusting telescopic seat 610, one end of the trigger lever 620 is abutted with the cone part, and the other end of the trigger lever 620 is connected with the locking assembly.
In this embodiment, as shown in fig. 12-13 and 15, when the pull wire 510 is pulled, the shift lever 541 is driven to rotate; the rotation of the shift lever 541 is transmitted to the telescopic adjusting component through the movable block 542, so that the telescopic adjusting component is loosened, the shape of the shift lever 541 is similar to that of a C, the movable block 542 is in a cylindrical cone shape, the planar end of the movable block 542 is connected with the shift lever 541, and the conical surface of the conical end is abutted with one end of the trigger lever 620.
In particular, as shown in fig. 1-2, 7 and 13, the adjustment telescoping mount 610 is provided with a chute adapted for sliding movement of the telescoping link 400.
In particular, as shown in FIGS. 1-2, 7 and 12-13, the locking assembly may be of the following construction:
the two locking plates 631, the two locking plates 631 are provided with rectangular slotted holes which are suitable for being penetrated by the telescopic connecting rod 400;
The two lock plate pressure springs 632 are correspondingly arranged with the lock plate 631, and the two lock plate pressure springs 632 are suitable for abutting against two sides of the lock plate 631 so as to enable the rectangular slot hole of the lock plate 631 to be inclined under the action of the elasticity of the lock plate pressure springs 632 to abut against the locking telescopic connecting rod 400; wherein,
The armrest adjusting unlocking component is abutted against the other side of the locking piece 631, and the armrest adjusting unlocking component is suitable for driving the locking piece 631 to move to overcome the elastic force of the locking piece pressure spring 632 so that the rectangular slotted hole releases the locking of the telescopic connecting rod 400.
In this embodiment, as shown in fig. 1-2, fig. 4-9, fig. 12-13 and fig. 15, one end of the trigger lever 620 is provided with a restoring spring 621, a telescopic adjusting decorative cover 550 is arranged outside the adjusting telescopic seat 610, an axle locking plate 560 is arranged at the hinged connection point of the armrest main body 300 and the adjusting telescopic seat 610, the movable block 542 triggers the trigger lever 620 to rotate, and the trigger lever 620 pushes the locking assembly to release the locking of the telescopic connecting rod 400, so that the armrest main body 300 can rotate; after the movable block 542 is restored, the restoring spring 621 on the trigger rod 620 drives the trigger rod 620 to return, so that the locking assembly locks the telescopic link 400 on the adjusting telescopic seat 610 again, the first state of the locking assembly is that the locking plate 631 is pressed against the locking telescopic link 400 by the locking plate pressure spring 632, the second state of the locking assembly is that the locking plate 631 is pressed by the trigger rod 620 to release the locking telescopic link 400, and the telescopic link 400 can slide freely on the adjusting telescopic seat 610.
Specifically, as shown in fig. 13, the locking pieces 631 are provided in two, the two locking pieces 631 are stacked together, and the armrest adjusting unlocking member abuts against the other side of the locking piece 631 at the upper portion.
In this embodiment, as shown in fig. 12-13, the lock plate 631 may be divided into a pair, where the long lock plate and the short lock plate are located below, the long lock plate is located above, the long lock plate and the short lock plate are stacked together, the pair of lock plate compression springs 632 are abutted against the short lock plate below, and the pair of lock plate compression springs 632 may be divided into a long lock plate compression spring and a short lock plate compression spring, so that the lock plate 631 is inclined to be locked by abutting against, and of course, in some embodiments, the number of the lock plate compression springs 632 and the lock plate 631 is not limited to one pair, and may be set according to specific needs.
Specifically, as shown in fig. 1 to 6, 8 to 9 and 13, the other end of the armrest body 300 is further provided with a controller mounting slot 302 adapted to mount the controller 700;
The controller 700 is provided with a fixing mechanism;
The armrest main body 300 is provided with a controller quick-release knob 301, and after the controller 700 is partially inserted into the controller mounting groove 302, the controller quick-release knob 301 is adapted to unlock the fixing mechanism by actuating the controller quick-release knob so as to take out the controller 700 from the controller mounting groove 302.
In this embodiment, as shown in fig. 1-3 and 13, the controller mounting groove 302 facilitates the mounting and dismounting of the controller 700, and pressing the controller quick release knob 301 can unlock the fixing mechanism, so as to quickly detach the controller 700. Different controllers 700 can be installed according to the needs, the maintenance and the replacement of the controllers 700 are also facilitated, the applicability and the maintainability are improved, the controllers 700 can be installed on the right, and of course, in some embodiments, the controllers 700 can also be installed on the left, and the installation positions of the controllers 700 can be changed according to the needs of users.
Specifically, as shown in fig. 1-2, 4-6, 8-9, 11 and 13, a threading hole for threading the cable 710 of the controller 700 is further provided at the hinge connection point of the backrest 100 and the armrest body 300.
In this embodiment, as shown in fig. 1-2, 4-6, 8-9, 11 and 13, the cable 710 can be moved through the threading hole without being damaged by pulling when the armrest body 300 is rotated relative to the backrest 100 in order to connect the controller 700 with the electrical circuit in the backrest 100.
Specifically, as shown in fig. 1-2, 4-6, 8-9 and 13, the threading hole and the hinge connection point of the armrest body 300 and the adjustment telescoping base 610 are provided with an axial locking piece 560.
In this embodiment, as shown in fig. 2 and 13, the shaft locking piece 560 is relatively easy to assemble and disassemble, and can also be used as an axial fixation. Further, the backrest 100 may be rotated backward to a lying state; or may be rotated forward to a folded state. The backrest 100 can be freely adjusted in angle.
The technical problems, technical solutions and advantageous effects solved by the present invention have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of protection of the present invention.
Claims (8)
1. Wheelchair armrest mechanism for a seat (200) hinged with a backrest (100), characterized in that it comprises:
A armrest body (300), the middle part of the armrest body (300) is hinged on the backrest (100);
The telescopic adjusting component comprises an adjusting telescopic seat (610) and a locking assembly, and the adjusting telescopic seat (610) is hinged to one end of the armrest main body (300);
A telescopic connecting rod (400), one end of the telescopic connecting rod (400) is hinged to the seat (200), the other end of the telescopic connecting rod is slidably mounted in the adjusting telescopic seat (610), the telescopic connecting rod (400) is further inserted on the locking assembly, and the locking assembly is suitable for being moved to a first state or a second state: the locking assembly limiting sliding movement of the pantograph linkage (400) over an adjustable telescopic seat (610) when the locking assembly is in a first state; when the locking assembly is in the second state, the locking assembly releases the sliding restriction of the telescopic link (400) on the adjusting telescopic seat (610) to rotate the armrest body (300) about the hinged connection point with the backrest (100);
the armrest adjusting unlocking component is connected with the locking assembly, and the locking assembly is enabled to be in a first state or a second state by moving the armrest adjusting unlocking component to move the locking assembly;
The armrest adjustment unlock component includes:
a wire handling assembly mounted on the armrest body (300);
the stay wire (510), the stay wire (510) is arranged in the armrest main body (300), and one end of the stay wire (510) is connected with the stay wire operating assembly;
a control conductive assembly connected to the other end of the pull wire (510);
the stay wire operating assembly is suitable for driving the control conducting assembly by pulling the stay wire (510) so as to trigger the locking assembly to loosen the fixation of the telescopic connecting rod (400);
the locking assembly includes:
at least one locking plate (631), wherein the locking plate (631) is provided with a rectangular slotted hole which is suitable for being penetrated by the telescopic connecting rod (400);
The locking plate comprises at least one locking plate pressure spring (632) which is arranged corresponding to the locking plate (631), wherein the locking plate pressure spring (632) is suitable for being abutted against one side of the locking plate (631), so that a rectangular slotted hole of the locking plate (631) is inclined under the action of the elasticity of the locking plate pressure spring (632) to be abutted against and locked with the telescopic connecting rod (400); wherein,
The handrail adjusting unlocking component is propped against the other side of the locking plate (631), and the handrail adjusting unlocking component is suitable for driving the locking plate (631) to move so as to overcome the elastic force of the locking plate pressure spring (632) and enable the rectangular slotted hole to loosen the locking of the telescopic connecting rod (400).
2. The wheelchair armrest mechanism of claim 1 wherein,
The wire handling assembly includes:
A handrail unlocking button (521), wherein the handrail unlocking button (521) is movably arranged on the handrail main body (300);
an umbrella-shaped rotating block (531), wherein the umbrella-shaped rotating block (531) is rotatably installed in the armrest main body (300);
An umbrella-shaped rotating block return pressure spring (532), wherein the umbrella-shaped rotating block return pressure spring (532) is abutted between the umbrella-shaped rotating block (531) and the armrest main body (300);
the umbrella-shaped rotating block (531) is connected with one end of the stay wire (510);
The armrest unlocking button (521) is in contact with the umbrella-shaped rotating block (531).
3. The wheelchair armrest mechanism of claim 1 wherein,
The control conductive assembly includes:
the middle part of the deflector rod (541) is hinged to the handrail main body (300), and one end of the deflector rod (541) is connected with the other end of the stay wire (510);
The movable block (542) is movably arranged at the hinged connection point of the armrest main body (300) and the adjusting telescopic seat (610) in an axial moving way, one end of the movable block (542) is connected with the other end of the deflector rod (541), and the other end of the movable block (542) is provided with a cone part;
the middle part of the trigger rod (620) is hinged in the adjusting telescopic seat (610), one end of the trigger rod (620) is abutted to the cone part, and the other end of the trigger rod (620) is connected with the locking assembly.
4. The wheelchair armrest mechanism of claim 1 wherein,
The adjusting telescopic seat (610) is provided with a sliding groove suitable for sliding of the telescopic connecting rod (400).
5. The wheelchair armrest mechanism of claim 1 wherein,
The locking plates (631) are arranged in two, the two locking plates (631) are overlapped, and the handrail adjusting unlocking component is abutted against the other side of the locking plate (631) at the upper part.
6. The wheelchair armrest mechanism of claim 1 wherein,
The other end of the armrest main body (300) is also provided with a controller mounting groove (302) which is suitable for mounting a controller (700);
a fixing mechanism is arranged on the controller (700);
the handrail main body (300) is provided with a controller quick-release knob (301), and after the controller (700) is partially inserted into the controller mounting groove (302), the controller quick-release knob (301) is suitable for unlocking the fixing mechanism by acting so as to take out the controller (700) from the controller mounting groove (302).
7. The wheelchair armrest mechanism of claim 6 wherein,
The connecting point of the backrest (100) and the armrest main body (300) is also provided with a threading hole for threading a cable (710) of the controller (700).
8. The wheelchair armrest mechanism of claim 7 wherein,
And the threading hole and the hinged connection point of the armrest main body (300) and the adjusting telescopic seat (610) are provided with an axial locking plate (560).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410134347.9A CN117653473B (en) | 2024-01-31 | 2024-01-31 | Wheelchair armrest mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410134347.9A CN117653473B (en) | 2024-01-31 | 2024-01-31 | Wheelchair armrest mechanism |
Publications (2)
| Publication Number | Publication Date |
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| CN117653473A CN117653473A (en) | 2024-03-08 |
| CN117653473B true CN117653473B (en) | 2024-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410134347.9A Active CN117653473B (en) | 2024-01-31 | 2024-01-31 | Wheelchair armrest mechanism |
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| CN103845161A (en) * | 2014-03-11 | 2014-06-11 | 合肥工业大学 | Linkage folding wheelchair mechanism |
| CN107595490A (en) * | 2017-07-27 | 2018-01-19 | 浙江佑仁智能机器人有限公司 | A kind of electric wheelchair stretcher |
| CN210542116U (en) * | 2019-07-24 | 2020-05-19 | 厦门基信医疗技术有限公司 | Sitting and lying dual-purpose wheelchair |
| CN112674954A (en) * | 2021-01-22 | 2021-04-20 | 浙江爱司米电气有限公司 | Foldable wheelchair |
| CN112843602A (en) * | 2021-03-09 | 2021-05-28 | 广州一康医疗设备实业有限公司 | Chair with detachable seat |
| CN113558884A (en) * | 2021-07-20 | 2021-10-29 | 椅夫健康(厦门)智能科技有限公司 | Wheelchair with cooperating seat back and armrest and its working method |
| CN116785084A (en) * | 2023-06-27 | 2023-09-22 | 佛山市丰和医疗科技有限公司 | An integrated linkage-adjustable wheelchair |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6811224B2 (en) * | 2002-10-09 | 2004-11-02 | First Source Furniture Group Llc | Chair with adjustable arms and/or back |
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2024
- 2024-01-31 CN CN202410134347.9A patent/CN117653473B/en active Active
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|---|---|---|---|---|
| EP0684030A1 (en) * | 1994-05-25 | 1995-11-29 | Stanzwerk Wetter Sichelschmidt & Co. | Arm-chair with standing-up air |
| CN103845161A (en) * | 2014-03-11 | 2014-06-11 | 合肥工业大学 | Linkage folding wheelchair mechanism |
| CN107595490A (en) * | 2017-07-27 | 2018-01-19 | 浙江佑仁智能机器人有限公司 | A kind of electric wheelchair stretcher |
| CN210542116U (en) * | 2019-07-24 | 2020-05-19 | 厦门基信医疗技术有限公司 | Sitting and lying dual-purpose wheelchair |
| CN112674954A (en) * | 2021-01-22 | 2021-04-20 | 浙江爱司米电气有限公司 | Foldable wheelchair |
| CN112843602A (en) * | 2021-03-09 | 2021-05-28 | 广州一康医疗设备实业有限公司 | Chair with detachable seat |
| CN113558884A (en) * | 2021-07-20 | 2021-10-29 | 椅夫健康(厦门)智能科技有限公司 | Wheelchair with cooperating seat back and armrest and its working method |
| CN116785084A (en) * | 2023-06-27 | 2023-09-22 | 佛山市丰和医疗科技有限公司 | An integrated linkage-adjustable wheelchair |
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| Publication number | Publication date |
|---|---|
| CN117653473A (en) | 2024-03-08 |
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