Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H3/00—Mechanisms for operating contacts
  • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
  • H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
  • H01H71/10—Operating or release mechanisms
  • H01H71/1009—Interconnected mechanisms
  • H01H71/1018—Interconnected mechanisms with only external interconnections

Definitions

• This invention relates to a mechanical area transmission apparatus, and more particularly, to a transmission apparatus for changing the direction of an input force and an output power.
• This invention also provides a circuit breaker using a direction change transmission device.
• the present direction change transmission apparatuses can usually use a linkage mechanism, a gear mechanism, etc. to perform the conversion of the
• the object of this invention is to provide a direction change transfer device for realizing the conversion of the direction of the driving force to the direction of the operating force.
• Another object of this invention is to provide a circuit breaker using this direction change transmission device.
• This invention provides a direction change transmission apparatus comprising a transmission part and a direction change part, the direction change part comprising a drive end and an operation end, the transmission part having a first axis line, the drive end having a second axis line and the operation end having a third axis line the second axis line and the third axis line form an angle, one end of the transmission part is mutually enveloped by the drive end with the direction change part, and the other end of the transmission part is mutually enveloped by the operation end with the direction change part, an end of the first axis line of the transmission part with coincides with the second axis line of the drive end, the other end of the first axis line of the transmission part coincides with the third axis line of the actuating end, so that from the location of the drive the driving force applied to one end of the transmission part can be transmitted to the other end of the transmission part located at the position of the operation end.
• the transmission part and the direction change part are mutually enveloping, the transmission part can be easily adapted to the shape of the direction change part, thereby the transmission direction of the force can be changed without using a transmission device having a complicated structure must become .
• the transmission part is a helical compression spring; if the direction change part is a sliding tube which can be enveloped on this helical compression spring, the two ends of this sliding tube are the drive end and the end of the operation.
• this drive part comprises a stop ring, a return spring and a drive piece
• the stop ring is arranged annularly on the radial outer periphery of the drive end
• the return spring is enveloping provided at the drive end and one end may have contact with the said stop ring
• the drive piece comprises a drive rod and connected to the drive rod connecting recess, on said drive rod is screwed with the helical compression spring thread, the other end of the return spring can be connected to the connecting well.
• an actuating part is also included, this actuating part comprises an actuating rod and a locking projection connected to the actuating rod, on the actuating rod is screwed with the helical compression spring thread, the blocking projection can on the end face of the Actuating part directed operating end sit.
• the arrangement of the operating part can realize the stable output of the actuating force and avoids that the return path is too large upon return of the transmission part, which is unfavorable for the execution of the next transmission.
• the drive rod and the operation rod each have a cross-shaped cross-sectional area;
• the sliding tube of the direction change part of a first tubular body and a second tubular body, which are connected to each other are formed, in particular, the first tubular body and the second tubular body can be connected by ultrasonic welding to the sliding tube, and the first tubular body and the second tubular body are through Plastic injection molded;
• a reinforcing rib may be provided on the outer wall of the sliding tube of the direction changing part connecting the driving end and the operating end, and a separating hole is provided between the reinforcing rib and the outer wall of the sliding tube;
• a first operating opening and a second operating opening are provided at the operating end, the first operating opening is arranged on the pipe wall of the first pipe body and the second operating opening is arranged on the pipe wall of the second pipe body.
• This structure can facilitate the shaping, manufacture and assembly of the direction change transfer device, and makes it easy to ensure accuracy of manufacture and use.
• This invention also provides a circuit breaker incorporating a direction change transfer device.
• the driving force is transmitted through the housing of the circuit breaker to an end of the transmission part at the location of the drive end.
• the driving force is transmitted through the transmission part to the operating end and acts on the internal drive pulley of the circuit breaker.
• Drawing 2 is a schematic sectional view of a
• Drawing 5 serves to describe a schematic
• Drawing 6 is used to describe a schematic
• Drawing 1 is used to describe the schematic representation of the structure of a schematic embodiment of the transmission device for changing direction.
• the direction change transmitting device comprises a transmission part 10 and a direction change part 20, the direction change part 20 includes a drive end 22 and an operation end 24.
• the transmission part 10 has a first axial direction 12
• Drive end 22 has a second axis line 222
• the actuation end 24 has a third axis line 242
• the second axis line 222 and the third axis line 242 form an angle.
• Drawing 2 shows a schematic embodiment of the direction change transmission device shown in FIG. 1, the direction change part 20 is envelopingly provided on the transmission part 10, one end of the transmission part 10 is at the drive end 22, the other end is at the operation end 24 (as in the drawing of FIG the full line shown).
• one end of the first axis line 12 of the transmission part 10 coincides with the second axis line of the drive end 22 coincides the other end of the first axis line 12 of the transmission part 10 with the third axis line of the actuating end 24, in this way, if at Position of the drive end 22 toward one end of the transmission part 10, the force Fl is exerted, Fl along the transmission part 10 to the other end of the transmission part 10 are transmitted, that is, under the action of the transmission part 10 from the location of the drive end 22 is a driving force Fl supplied, and the location of the actuating end 24 can receive an actuating force F2, wherein Fl and F2 can form an angle.
• the transmission part 10 is a helical compression spring
• the two ends of this sliding tube are the drive end 22 and the Operating end 24, serving as the drive part 10 helical compression spring is wrapped in the sliding tube provided.
• the driving force Fl acts directly on one end of the helical compression spring, so that the helical spring is compressed and elastic deformation is generated, whereby the driving force Fl is in the form of elastic energy is transmitted to the other end of the coil spring located on the actuating end 24 and is discharged in the form of the actuating force F2.
• the direction of deformation of the coil spring that is, the transmission direction of the elastic energy is restricted, and this deformation direction is limited by the opening angle of the extension direction of the operating end 24 relative to the extension direction of the drive end 22, thereby the direction of the operating force F2 becomes relative limited to the driving force Fl and realized the change of direction from the driving force Fl to the actuating force F2.
• the transmission part 10 may also use a different transmission medium than a helical compression spring.
• the form of using the direction changing part 20 for limiting the direction of transmission of the driving force Fl by the transmission part 10 is by no means limited to the connected sliding tube shown in the drawings 1 and 2, for example, the direction changing part may be a bent rod part
• the direction of transmission of the driving force Fl is controlled by the bending angle of the rod part, or the direction changing part is two disjointed separate sliding tubes, in the transmitting part there is only one in contact with the driving force
• the transmitting end direction of the driving force Fl is set to one of the stationary end and an end of the output transmitting force received in the separate sliding tubes of the direction changing portion, and the angle of extension direction of the two separate sliding tubes in the direction changing portion euert.
• this transmission device for changing the direction, it is possible to prevent a connecting rod or a worm gear from being used to realize the change of the direction from the driving force to the actuating force, thereby greatly simplifying the structure of the direction change transmitting device the angle between the extension direction of the drive end and the extension direction the operating end of any angle of change of direction can be realized, the realization is simple and is particularly suitable for changing the direction of the force in tight spaces.
• the direction change transmission device further comprises a drive part 30, the drive part 30 includes a stopper ring 38, a return spring 36, and a drive piece 32.
• the stopper ring 38 is annularly disposed at the location of the radially outer periphery of the drive nut 22 wherein the stop ring 38 is integrated with the direction change part 20.
• the return spring may be provided enveloping the drive end 22, one end of the return spring 36 may be in contact with the stop ring 38 to provide the return spring 36 a point of attack.
• the drive piece 32 comprises a drive rod 322 and a connecting recess 324 connected to the drive rod 322, a thread screwable with the helical compression spring 10 is provided on the drive rod 322, and the other end of the return spring 36 can be connected to the connection recess 324.
• the direction change transmission device may further comprise an operation piece 40, and the operation piece 40 may include an operation rod 42 and a blocking protrusion 44 connected to the operation rod 42.
• the actuating rod 42 Provided on the actuating rod 42 is a screw threadable with the helical compression spring 10, the blocking projection 44 can rest on the end surface of the actuating end 24 directed towards the actuating part in order to limit the return travel of the actuating part 40.
• Drawing 4 represents the process of transmitting the direction change of the direction change transmitting apparatus shown in Fig. 3, wherein (a) represents the state when no force was applied, and (b) shows the process of transmitting the direction change after exercise a force Fl acts.
• one end of the drive part 30 is mounted on the direction change part 20, and when the drive rod 322 of the drive piece 32 is screwed to one end of the return spring 10, the return spring 36 is enveloping on the one
• Drive end 24 is provided, one end connected to the stop ring 38 and the other end connected to the connecting recess 324 of the drive piece 32.
• the operating rod 42 of the operating part 40 is screwed to the other end of the helical compression spring 10, the locking projection 44 on the operating part 40 then sits on an end face of the operating end 24.
• (b) shows in drawing 4 moves after exercise of
• the direction change transmitting device returns to the position shown in the drawing (a) without applying force.
• the blocking projection on the actuating part 40 can avoid that the actuating member 40 at the time of recovery altogether enters the sliding tube of the actuating end 24.
• the arrangement of the drive part 30, the stable supply of the driving force Fl can be realized, and the arrangement of the operating part 40, the stable output of the actuating force F2 can be realized.
• the cross sections of the drive rod 322 and the actuating rod piece 42 are each a cross shape.
• the sliding pipe of the direction changing part 20 can be formed of a first pipe body 26 and a second pipe body 28, the first pipe body 26 and the second pipe body 28 enclose the co-formed sliding pipe of the direction changing part 20 and are used for the first pipe body 26 and the second tubular body 28 uses a molding by plastic injection molding.
• the first pipe body 26 and the second pipe body 28 are joined to the sliding tube of the direction changing part by a method of ultrasonic welding, of course, other methods of realizing the connection between the first pipe body and the second pipe body may be used , By ultrasonic welding, a quick connection between the first tube body 26 and the second tube body 28 can be realized.
• the degree of difficulty of shaping and machining of the sliding tube of the direction change part can be reduced, at the same time the assembly of the operating part in the sliding tube of the direction change part is facilitated.
• the direction change member is made of plastic, the cost of the direction change transmitting apparatus can be greatly reduced.
• a reinforcing rib 29 is also provided on the outer wall of the sliding tube of the direction changing part 20 connecting the drive end 22 and the operating end 24, when the separate structure shown in Fig. 4 is used for the sliding tube, the reinforcing rib 29 is distributed on the first tubular body 26 and the second tubular body 28.
• a separating opening 27 is also provided between the reinforcing rib 29 and the tube wall of the sliding tube of the direction changing part 20.
• the reinforcing rib can improve the mechanical strength of the
• Driving end and the connecting end portion of the operating end reinforce, and the separation opening 27 can avoid that the thickness of the tube wall of the sliding tube of the direction change member greatly changed, thereby avoiding that in the process of injection molding due to different rates of shrinkage errors are caused, and also facilitates assembly ,
• Drawing 5 is used to describe a schematic exploded view of the direction change part of the drawing
• a first operation port 25 and a second operation port 23 are provided at the operating end 24 of the direction changing part 20, a first operation port 25 and a second operation port 23 are provided, the first operation port 25 is disposed on the pipe wall of the first pipe body 26, and the second operation port 23 is on the pipe wall of the second pipe body 28 arranged in the realization of the assembly of the actuating rod 42 with the Transmission part 10 can be fixed by the first operating opening 25 and / or the second operating opening 23, the transmission part 10, whereby the actuating rod 42 is screwed into the transmission part 10.
• Drawing 6 is for the purpose of describing a schematic representation of the construction of the circuit breaker using the transmission device for changing direction.
• the driving force Fl can be transmitted through the housing 50 of the circuit breaker to one end of the transmission part 10 of the location of the drive end 22, the driving force is transmitted by the transmission part 10 to the actuating end 24 and acts on the internal drive pulley 60 of the circuit breaker to realize the switching on and off of the circuit breaker.

Landscapes

• Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
• Transmission Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=47605473

Family Applications (1)

Country Status (2)

Cited By (1)

Citations (5)

Family Cites Families (1)

• 2012
  • 2012-01-13 CN CN2012100115665A patent/CN103208402A/zh active Pending
• 2013
  • 2013-01-10 WO PCT/EP2013/050373 patent/WO2013104697A1/fr not_active Ceased

Patent Citations (5)

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