WO2017140062A1

WO2017140062A1 - Anti-jamming folding device

Info

Publication number: WO2017140062A1
Application number: PCT/CN2016/083762
Authority: WO
Inventors: 朱红英
Original assignee: 朱红英
Priority date: 2016-02-16
Filing date: 2016-05-28
Publication date: 2017-08-24
Also published as: CN205574174U

Abstract

A anti-jamming folding device comprises a shaft seat (3), the shaft seat (3) comprising a vertical shaft hole (26) and a side shaft hole (27); a handlebar frame (1) is connected to the vertical shaft hole (26) of the shaft seat (3) by means of a steering shaft to achieve a steering action; a seat bar (4) and a chassis (5) are connected to the side shaft hole (27) of the shaft seat (3) by means of a horizontal shaft, and adapted to fold, open, close or rotate relative to the handlebar frame (1); the chassis (5) is provided separately from a rear wheel frame (18) on which a rear wheel is mounted, and the rear wheel frame (18) is rotationally connected with the chassis (5) by means of a folding shaft; a diagonal bracing connecting rod (6) is arranged between the seat bar (4) and the rear wheel frame (18), a folding chain (22) is arranged between the chassis (5) and the shaft seat (3); the folding chain comprising two shaft-connected chain arms; an unlocking abutting sheet (23) abuts against the folding chain (22), and is rotatably connected to the chassis (5) by means of a shaft which is fixed to the chassis (5); the unlocking abutting sheet (23) sleeving a shaft sleeve of the shaft, which is provided with fins (28). The anti-jamming folding device prevents jamming during unlocking, thus making folding, locking and unlocking fast and convenient. The whole structure is stable and secure while providing good linkage between folding and unfolding.

Description

Description: A folding device for preventing jamming

[0001] The present invention belongs to the field of vehicles, and in particular relates to an anti-seize folding device.

Background technique

[0002] Chinese Patent Application No. 201420075391.9 discloses a frame of an electric folding bicycle, the handlebar frame is connected with a pedal shaft, the seat tube is connected with a pedal shaft, and the frame of the electric folding bicycle is composed of a handlebar frame and The pedal is constructed, the pedal can be folded up and down with respect to the handlebar frame, and the seat tube can be folded up and down with respect to the pedal. The appearance is simple and smooth, the volume is small, and the long-distance carrying, up and down stairs, storage and charging are extremely convenient. However, the seat tube is separately connected to the pedal shaft, which increases the seat tube shaft and the shaft seat. The addition of the accessory parts not only makes the folding process complicated, but also requires two steps, and the folding degree is low, and the volume after folding is still large. The seat tube has no supporting structure. When the driver sits on the seat, it forms a lever force on the shaft seat, which is easy to cause damage to the seat tube or the shaft seat. The driver will also feel unsafe feeling in the psychological, and the effect is poor. How can the structure and the security problem solve the lock and unlock of the folding and retracting? The inventors have designed a triangular structure that can be folded into a quadrilateral shape, and a folding chain that assists in locking is designed. The inventor conducted many deductions and experiments on the structure. During a large number of experiments, it was found that the operator pressed or stepped on the unlocked manipulating end, and the degree of rotation of the top piece was too large due to excessive force. The purpose is that it is easy to get stuck under the chain arm and it is easy to get stuck.

[0003] Technical content

[0004] In order to overcome the above drawbacks, the technical problem to be solved by the present invention is: designing an anti-seize folding device, and installing the support structure of the seat tube to realize the locking and unlocking of the folding and retracting, and preventing the unlocking top The film is stuck.

[0005] In order to solve the technical problem, the technical solution adopted is: designing an anti-seize folding device, comprising a shaft seat, the shaft seat comprising a vertical shaft hole and a side shaft hole, wherein the handlebar frame passes The steering shaft is connected to the vertical shaft hole of the shaft seat to realize the steering action; the seat rod and the chassis are connected to the side shaft hole of the shaft seat through the horizontal axis, and can be folded and twisted relative to the handlebar frame; the chassis and the chassis The rear wheel frame of the rear wheel is arranged separately, and the rear wheel frame is rotatably connected with the chassis through the folding shaft; a diagonal strut link is arranged between the seat bar and the rear wheel frame, the chassis and the shaft A folding chain is disposed between the seats, the folding chain includes two axially connected chain arms, and the unlocking top piece is topped with the folding chain, and the unlocking top piece is rotatably coupled to the chassis by a shaft fixed to the chassis, the unlocking top piece sleeve a sleeve connected to the shaft is provided with a fin; the diagonal link is provided with a vibration damping device, the vibration damping device includes a spring; the diagonal link is connected to a front end portion of the rear wheel frame and is coupled to the seat rod, The chassis and the rear wheel frame constitute a triangular structure that can be folded and deformed into a quadrilateral shape, wherein the chassis and the rear wheel frame form a bottom edge of the triangular structure; the diagonal support link is formed by the inner sleeve and the outer sleeve, and the spring is disposed on the outer sleeve. a tube is disposed at the outer end of the inner sleeve and the outer sleeve, and the outer sleeve is provided with a rotating shaft; the inner sleeve is provided with a stroke limiting hole, and the cross rod is fixed to the outer sleeve through the two ends of the stroke limiting hole; The chassis is provided with a pin, the shaft of the shaft is correspondingly disposed with a pin hole, and the arc bottom and the top of the shaft seat are respectively provided with pin holes adapted to the pin; the pin includes a spring, and the pin is unlocked by a cable connection幵关; The unlocking setting Handlebar handle frame; end of the inner sleeve within the outer sleeve enlarged socket, the outer sleeve cooperating with an end portion of a respective tightening; said pedestal disposed hooks, provided the corresponding rear frame hanger bar.

[0006] The beneficial effects of the invention are as follows: the same structure is added to the seat tube to realize the quick locking and unlocking of the folding, and the locking of the unlocking top piece is prevented, the operation is convenient, the folding step is reduced, the structure is firm, and the receiving is improved. Linkage and convenience. It is only necessary to fold the seat tube during the folding process of the vehicle, and the entire folding process is completed in one step, which reduces the folding step, reduces the structural components and saves costs compared with other solutions of the prior art. The overall retractable mechanism is ingenious, and it is easy to cooperate with the linkage.

technical problem

Problem solution

Advantageous effects of the invention

Brief description of the drawing

DRAWINGS

1 is a schematic structural view of the present invention

2 is a schematic structural view of a handle and a wire of the present invention;

3 is a schematic view of the overall structure of the inner and outer sleeves

4 is a schematic structural view of a folding process

[0011] FIG. 5 is a schematic view of the folded structure 6 is a schematic structural view of a bottom surface of a chassis of the present invention;

[0013] FIG. 7 is a schematic view of a triangular structure

8 is a schematic view showing the overall structure of a diagonal strut link.

9 is a schematic view of a shaft seat structure

10 is a schematic view of a rotating shaft structure.

11 is a schematic view of a bump mounting structure.

12 is a schematic view of a fin mounting structure.

[0019] FIG. 13 is a schematic diagram of an unlocking installation structure

[0020] FIG. 14 is a schematic view of a folding chain structure

[0021] FIG. 15 is a schematic view showing the structure of the bolt mounting position

[0022] FIG. 16 is a schematic diagram of a hook structure

17 is a schematic view of a hanging rod structure

18 is an enlarged schematic view of the insertion end of the inner sleeve;

[0025] FIG. 19 is a schematic view of a hook position in a folded state

20 is a schematic diagram of a mating structure of a hanging rod and a hook;

[0027] In the figure: 1 handlebar frame 2 handlebar 3 axle seat 4 seatbar 5 chassis 6 diagonal support link 7 pin 8 pin hole 9 damping device 10 spring 11 inner casing 12 outer casing 13 stroke limit Hole 14 cross bar 15 unlocking switch 16 pull wire 17 rotating shaft 18 rear wheel frame 19 hook groove 20 protrusion 21 steering end 22 folding chain 23 unlocking top piece 2 4 hook 25 hanging rod 26 vertical shaft hole 27 side shaft hole 28 fin 29 Bump.

detailed description

[0028] As shown, an anti-seize folding device includes a shaft base 3 including a vertical shaft hole 26 and a side shaft hole 27, wherein the handlebar frame 1 is coupled to the steering shaft through a steering shaft The vertical shaft hole 26 of the shaft seat 3 is configured to realize a steering motion; the seat rod 4 and the chassis 5 are connected to the side shaft hole 27 of the shaft base 3 through a horizontal axis, and can be folded and twisted with respect to the handlebar frame 1; The chassis 5 is disposed separately from the rear wheel frame 18 on which the rear wheel is mounted, and the rear wheel frame 18 is rotatably connected to the chassis 5 through a folding shaft; a diagonal link 6 is disposed between the seat bar 4 and the rear wheel frame 18, and the chassis 5 is disposed. A folding chain 22 is disposed between the shaft base 3 and the folding chain 22, and the folding chain 22 includes two axially connected chain arms. The unlocking top sheet 23 is topped with the folding chain 22, and the unlocking top sheet 23 is pivotally connected by a shaft fixed to the chassis 5. In the chassis 5, the unlocking top sheet 2 3 sets of fins connected to the shaft are provided with fins 28; the diagonal strut 6 is provided with a vibration damping device 9, the vibration damping device 9 includes a spring; and the diagonal strut 6 is connected to the rear wheel frame 18 The front end portion and the seat bar 4, the chassis 5, and the rear wheel frame 18 form a triangular structure that is foldably deformed into a quadrilateral shape, wherein the chassis 5 and the rear wheel frame 18 constitute a bottom edge of a triangular structure; The sleeve 11 and the outer sleeve 12 are sleeved, the spring 10 is disposed in the outer sleeve 12 and is adjacent to the inner sleeve 11, and the outer end of the inner sleeve 11 and the outer sleeve 12 is provided with a rotating shaft 17; 11 is provided with a travel limit hole 13 , the cross bar 14 is fixed to the outer sleeve 1 2 through the two ends of the travel limit hole 13; the bottom plate 5 is provided with a spring pin 7 , and the shaft seat arc is correspondingly disposed with a pin hole 8 shaft seat bottom and top of the arc arc 3 are provided with pin holes ₇ adapted elastic pin _8; said latch comprises a spring pin 7, pin 7 is connected through the elastic wire 16 Jian unlocking switch 15; the unlocking switch 15 is provided in Jian The handle of the handlebar frame 1; the end of the inner sleeve 11 sleeved in the outer sleeve 12 is enlarged, and the end portion of the outer sleeve 12 is correspondingly tightened; the shaft seat 3 is provided with a hook 24 18 corresponding rear frame hanger bar 25 is provided. A rotating shaft 17 is disposed at both ends of the diagonal strut 6 and is coupled to the seat post 4 and the rear wheel frame 18, respectively.

[0029] The handlebar frame 1, the seatbar 4, and the chassis 5 are respectively shaft-connected to the axle seat 3, and the rear wheel carrier 18 is rotatably connected to the chassis 5 through a folding shaft, and a diagonal support is provided between the seatbar 4 and the rear wheel carrier 18. The connecting rod 6; the diagonal strut 6 is provided with a vibration damping device 9; the vibration damping device 9 includes a spring 10; the diagonal strut 6 is sleeved by the inner sleeve 11 and the outer sleeve 12, and the spring is disposed In the outer sleeve 12 and adjacent to the inner sleeve 11, the outer ends of the inner sleeve 11 and the outer sleeve 12 are provided with a rotating shaft 17; the inner sleeve 11 is provided with a travel limiting hole 13 through which the cross bar 14 passes The two ends of the travel limiting hole 13 are fixed to the outer sleeve 12; the end of the folding chain 22 is connected to the chassis 5, and the other end is connected to the shaft base 3, that is, one of the chain arms is connected to the chassis 5, and the other chain arm is connected to the shaft base 3. The unlocking top piece 23 is provided with a rotating shaft 17 and is connected with a steering end 21; the hanging rod 25 is provided with a rotating shaft 17 and is connected with a steering end 21; the unlocking top piece 23 is provided with a spring that can be automatically reset; The hook includes a hook groove and the end is chamfered, the opposite side of the hanging rod is provided with a protrusion 20; the handlebar frame 1 is provided with a front wheel, the rear wheel frame 18 is provided with a rear wheel, and the seat rod 4 is provided for riding Seat.

[0030] If the folding cymbal is required, the operating terminal 21 fixedly connected to the unlocking top piece 23 is first depressed or pressed, in order to prevent the pedaling operation end 21 from being stuck, the travel limit is set for the unlocking top sheet 23, and the top sheet 23 is unlocked. a shaft sleeve is provided, the bottom plate is provided with a shaft engaged with the sleeve, the shaft is fixed to the chassis 5, and the unlocking top piece 23 is rotatably connected to the chassis 5 through the shaft, the sleeve is provided with the fins 28; the chain arm is provided with a concave arc, It is thought that the top sheet 23 is unlocked to leave enough room for movement. When the operating end 21吋 is depressed, when the fin 28 moves to the bottom surface of the chassis 5 and against the cymbal, the unlocking of the top sheet 23 cannot continue to The lower movement, the stroke limit is realized, and then the frame folding is continued without blocking, the unlocking of the top sheet 23 is released from the original chain arm, the folding chain 22 can be freely folded, and the chassis 5 can be moved upward relative to the shaft seat 3 Closing the movement to achieve the unlocking effect, pulling up the seat with one hand drives the seat rod 4 to close toward the handlebar frame 1, and the skew support link 6 moves upwards, the rear end of the chassis 5 and the rear wheel frame 18 The front end is connected by a folding shaft, the diagonal strut 6 moves upward to pull the front end of the rear wheel frame 18 upward, and the rear end of the bottom plate 5 also moves upward. The chassis 5 and the rear wheel frame 18 form an orientation with the folding shaft as an axis. The angle of the lower angle, the angle of the angle decreases with the folding movement of the whole vehicle, and the angle is minimized when folded into the position; the rear end of the chassis 5 moves upward, and the front end of the chassis 5 is axially connected to the shaft seat 3, that is, the chassis 5 The upward direction is closed toward the handlebar frame 1, that is, the seat lever 4 drives the chassis 5 to close upward together, and the seat lever 4 is closed toward the handlebar frame 1, the chassis 5 and the front frame 1 are closed. Also folded over, this Fold down the rear frame 18, toward the chassis 5 bonded.

[0031] During the folding process, the distance between the hook 24 provided by the axle seat 3 and the hanging rod 25 is continuously reduced. The first contact with the hanging rod 25 is the beveled end of the hook 24, and the beveled end slides over the hanging rod 25. A barrier is generated until the hook groove 19 is snapped into the hanging rod 25, and the back of the hanging rod 25 is provided with a protrusion 20 which is folded into position, the hanging rod 25 falls into the hook groove 19, and the chassis 5 is fitted to the front frame 1 and is Locked; the corresponding vehicle remains locked and locked.

[0032] It is necessary to open from the folded state, press or press the operating end 21 of the hanging rod 25, the hanging rod shaft rotates, and the protrusion 20 rotates the lifting hook 24 from the opposite side, and the hanging rod 25 is disengaged from the hook groove 19. To unlock the whole vehicle, the rear wheel frame 1 8 slides backwards, the whole vehicle is automatically stretched until it is fully displayed, and the display is in place. The unlocking top piece 23 is automatically reset under the action of the spring, and is re-topped on the chain arm to complete the exhibition. Locking the state, restoring the situation before unfolding

[0033] Another embodiment: the handlebar frame 1 is coupled to the axle seat 3 via a steering shaft to realize a steering motion; the seatbar 4 is axially coupled to the axle seat 3, and can be turned up and down with respect to the handlebar frame 1 Combine sports. The chassis 5 is coupled to the axle base 3 via a folding shaft, and can also be turned up and down with respect to the handlebar frame 1 to perform a kneading motion. The bottom plate 5 is provided with a spring pin 7. The bottom of the shaft seat is provided with a corresponding pin hole 8. The shape of the pin 7 is matched with the pin hole 8. The diagonal link 6 is disposed between the seat bar 4 and the rear wheel frame 18. The diagonal strut 6 is placed under the seat bar 4 to provide a stable supporting function. The lower end of the diagonal strut 6 is connected to the front end of the rear wheel frame 18, and the vehicle is in a state where the pin 10 is inserted into the shaft arc. In the bottom pin hole 12, the chassis 5 falls on the ground, and the relative position of the axle seat 3 and the chassis 5 is locked; after the rear wheel carrier 18 is axially connected to the chassis 5, it also falls on the ground, and is restricted by the diagonal link 6. With support, seatpost 4 The position is also fixed accordingly, forming a stable and robust triangular structure. The spring pin 7 includes a spring 10, and the spring pin 7 is connected to the unlocking switch 15 by a pull wire 16; the unlocking switch 15 is disposed on the handlebar 2 of the handlebar frame 1; the arc bottom and the arc top of the axle seat 3 are respectively A pin hole 8 is provided which is adapted to the pin 7; the pin 7 is of an inclined wedge type.

[0034] The folding cymbal is required, and the unlocking switch 15 is pulled by one hand, and the elastic pin 7 is pulled out from the pin hole 8 of the bottom of the shaft seat by the pulling wire 16. The chassis 5 can be closed upward with respect to the shaft seat 3 to achieve the unlocking effect. Pulling up the seat with one hand drives the seat lever 4 to close toward the handlebar frame 1, and the skew support link 6 moves upward accordingly, and the rear end of the chassis 5 and the front end of the rear wheel carrier 18 are connected by a folding shaft. The diagonal link 6 is moved upward to pull the front end of the rear wheel frame 18 upward, the rear end of the chassis 5 also moves upward, and the chassis 5 and the rear wheel frame 18 are arched upward in the axial direction of the folding shaft to form a downward direction. Angle, the angle of the angle decreases with the folding movement of the whole vehicle, and the folded position becomes the smallest angle, and is deformed from a stable triangular structure into a foldable quadrilateral; the rear end of the chassis 5 moves upward, and the chassis 5 is The front end shaft is connected to the shaft base 3, that is, the bottom plate 5 is continuously closed upward in the direction of the handlebar frame 1, that is, the seat rod 4 drives the chassis 5 to also close upwards together, and the seat rod 4 is closed toward the handlebar frame 1吋, chassis 5 The front frame 1 is also folded over, and the rear wheel frame 18 is folded downward to fit toward the chassis 5.

[0035] When the spring pin 7 is pulled out from the pin hole 8 of the shaft bottom of the shaft seat, the spring pin 7 is disengaged from the position of the pin hole 8, and is pressed against the shaft seat arc under the action of the spring, and is forced along The shaft arc slides upwards, folded into position 吋, the pin 7 is opposite to the pin hole 8 of the shaft top of the shaft seat, the spring pin 7 just springs into the pin hole 8 of the shaft top of the shaft seat, and the chassis 5 fits the front frame 1 and is Locked; the corresponding vehicle remains locked and locked.

[0036] It is necessary to open from the folded state, and again operate the unlocking switch 15, the spring pin 7 is pulled out from the pin hole 8 of the arc top, and the chassis 5 and the seat bar 4 are automatically rotated along the shaft seat under the weight of the shaft. After the gliding, the whole vehicle is automatically unfolded until it is fully displayed. When the ram is in place, the pin 7 is plunged into the pin hole 8 of the bottom of the arc to complete the locking of the shovel and restore the situation before unfolding.

[0037] An embodiment of the solution for solving the problem of the vibration of the folding frame is: the diagonal strut 6 is sleeved by the inner sleeve 11 and the outer sleeve 12, and the spring is disposed in the outer sleeve 12 and the inner sleeve 11 phase top, when the driver rides on the seat, the inner sleeve 11 is inserted deeper into the outer sleeve 12 and presses the spring 10 to contract, and the elasticity of the spring 10 itself can play a damping effect; the inner sleeve 11 and the outer sleeve 12 The outer end portion is provided with a rotating shaft 17, and the inner sleeve 11 and the outer sleeve 12 as a whole, that is, the diagonal connecting rod can be rotationally folded with respect to the seat rod 4 and the rear wheel frame 18; the inner sleeve 11 is provided with a stroke limit The hole 13 and the cross bar 14 are fixed to the outer sleeve 12 through the two ends of the stroke limiting hole 13 . The movable stroke of the inner sleeve 11 is limited to the length of the travel limiting hole 13, and is neither pulled out of the outer sleeve 12 nor excessively inserted.

[0038] Another embodiment for solving the problem of the vibration reduction of the folding frame is: the end of the inner sleeve 11 sleeved in the outer sleeve is enlarged, the end portion of the outer sleeve 12 is correspondingly tightened, and the spring is disposed on the outer sleeve 12 and the top of the inner casing 1 1 , when the driver rides on the seat, the spring contracts, the upper sleeve moves downward, and the contraction distance of the spring constitutes the stroke limit.

[0039] In order to achieve linkage locking and unlocking, one unlocking switch 15 can simultaneously unlock and lock the chassis 5 and other folding joints, and other folding joints can be provided with a locking structure, and the pull wire 14 can be connected with a sectional joint to unlock the bullet. .

[0040] Further,

[0041] Another embodiment for setting the travel limit for unlocking the topsheet 23: The unlocking topsheet 23 is provided with a sleeve, the chassis is provided with a shaft that cooperates with the sleeve, the shaft is fixed to the chassis 5, and the unlocking topsheet 23 is axially connected. The chassis 5 is provided with a fixing bump 29 on a side of the movement of the operating end 21. When the operating end 21 is pressed or pressed, when the operating end 21 moves to the fixed bump 29 on the side of the chassis 5 and is blocked from the cockroach, the unlocking top sheet 23 cannot continue to move downward, and the stroke limit is achieved, and the operation is continued after the unlocking. The frame is folded.

It should be noted that the above embodiments are merely preferred embodiments of the present invention, and those skilled in the art will have any equivalent or similar substitutions in accordance with the working principle of the present invention. The scope of protection of the present invention.

Claims

Claim

[Claim 1] An anti-seize folding device includes a shaft base including a vertical shaft hole and a side shaft hole, wherein the handle frame is coupled to the vertical shaft hole of the shaft seat through a steering shaft, To realize the steering action; the seat rod and the chassis are connected to the side shaft hole of the shaft seat through the horizontal axis, and can be folded and folded with respect to the handlebar frame; the chassis and the rear wheel frame on which the rear wheel is mounted are separately arranged, the rear wheel The frame is rotatably connected to the chassis through the folding shaft; a diagonal link is disposed between the seat bar and the rear wheel frame, and a folding chain is disposed between the chassis and the shaft seat, the folding chain includes two chained chain arms, and the top is unlocked The piece is topped with the folding chain, and the unlocking top piece is rotatably connected to the chassis by a shaft fixed to the chassis, and the unlocking top piece is sleeved on the sleeve of the shaft to set the fin.

[Claim 2] An anti-seize folding device according to claim 1, wherein the diagonal link is provided with a vibration damping device, and the vibration damping device includes a spring.

[Claim 3] The anti-seize folding device according to claim 1, wherein the diagonal link is coupled to a front end portion of the rear wheel frame and to the seat bar, the chassis, and the rear wheel structure a foldable deformation into a quadrilateral triangular structure, wherein the chassis and the rear wheel frame constitute a bottom edge of the triangular structure

[Claim 4] The anti-seize folding device according to claim 1, wherein the diagonal strut is sleeved by an inner sleeve and an outer sleeve, and the spring is disposed in the outer sleeve and The inner sleeve is topped, and the outer ends of the inner sleeve and the outer sleeve are provided with a rotating shaft.

[Claim 5] The anti-seize folding device according to claim 4, wherein the inner sleeve is provided with a travel limiting hole, and the cross rod is fixed at both ends of the travel limit hole Outer casing.

[Claim 6] The anti-seize folding device according to claim 1, wherein the chassis is provided with a pin, the shaft of the shaft is correspondingly provided with a pin hole, and the arc base and the arc of the shaft seat The tops are respectively provided with pin holes adapted to the pins.

[Claim 7] An anti-seize folding device according to claim 6, wherein the spring pin includes a spring, and the spring pin is unlocked by a wire connection.

[Claim 8] The anti-seize folding device according to claim 7, wherein the unlocking is provided to a handlebar of the handlebar frame.

[Claim 9] An anti-seize folding device according to claim 4, wherein the inner sleeve The end that is sleeved in the outer sleeve is enlarged, and the end of the outer sleeve is fitted accordingly.

[Claim 10] The anti-seize folding device according to claim 1, wherein the shaft seat is provided with a hook, and the rear wheel frame is provided with a corresponding hanging rod.