WO2017140061A1

WO2017140061A1 - Folding frame with damping device

Info

Publication number: WO2017140061A1
Application number: PCT/CN2016/083572
Authority: WO
Inventors: 朱红英
Original assignee: 朱红英
Priority date: 2016-02-16
Filing date: 2016-05-26
Publication date: 2017-08-24

Abstract

A folding frame with a damping device comprises a shaft seat (3), which comprises 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) through a steering shaft to effect a steering operation. A seat rod (4) and a chassis (5) are connected to the side shaft hole (27) of the shaft base (3) through a cross shaft so as to turn over, open, close and rotate relative to the handlebar frame (1). The chassis and a rear wheel carrier (18) on which a rear wheel is mounted are separately arranged, the rear wheel carrier (18) being rotationally connected with the chassis (5) through a folding shaft. A inclined bracing connecting rod (6) is arranged between the seat rod (4) and the rear wheel carrier (18), the inclined bracing connecting rod (6) being formed by an inner sleeve (11) and an outer sleeve (12) sheathing thereon . A spring (10) is provided inside the outer sleeve (12) and is against the inner sleeve (11). A rotating shaft (17) is provided at the outer ends of the inner sleeve (11) and the outer sleeve (12). The inner sleeve (11) is provided with a travel stop hole (13). A cross rod (14) runs through both ends of the travel stop hole (13) and is fixed to the outer sleeve (12). The folding frame is of a seat tube fitted with a support structure, at the same time the folding frame has advantages of good damping effect, convenient and rapid folding, stable and firm vehicle structure, easy operation, and with good folding and unfolding linkage.

Description

Technical field

[0001] The present invention belongs to the field of vehicles, and in particular relates to a folding frame with a vibration damping 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. Although the driver has a good damping effect after sitting on the seat, but the lever force is formed on the shaft seat, it is easy to cause damage to the seat tube or the shaft seat, and the driver may also feel unsafe feeling in psychology, and the effect is poor. How to install the support structure for the seat tube and solve the safety problems? How can it be folded easily without affecting the vibration reduction effect of the frame? How to solve this technical problem has become a reality faced by many R&D personnel.

[0003] Technical content

[0004] In order to overcome the above drawbacks, the technical problem to be solved by the present invention is: designing a folding frame with a vibration damping device, and providing a support structure for the seat tube to achieve good vibration reduction, fast folding, and firm structure. The operation is convenient, and the linkage of retracting and releasing is good.

[0005] In order to solve the technical problem, the technical solution adopted is: designing a folding frame with a vibration damping device, comprising a shaft seat, the shaft seat comprising a vertical shaft hole and a side shaft hole, characterized in that the handlebar The frame is connected to the vertical shaft hole of the shaft seat through the 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 twisted and rotated relative to the handlebar frame; The chassis is arranged separately from the rear wheel frame on which the rear wheel is mounted, and the rear wheel frame is rotatably connected to the chassis through the folding shaft; a diagonal strut link is arranged between the seat bar and the rear wheel frame, and the diagonal bracing link is provided by the inner sleeve and The outer sleeve is sleeved, the spring is disposed in the outer sleeve and is adjacent to the inner sleeve, and the outer end of the inner sleeve and the outer sleeve is provided with a rotating shaft; the inner sleeve is provided with a travel limiting hole, and the cross rod passes through the The two ends of the travel limit hole are fixed to the outer sleeve; the diagonal support link is provided with a vibration damping device, and the vibration damping device comprises a spring; 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 spring pin; the diagonal link is connected to the rear wheel frame Front end and seat rod

The chassis and the rear wheel frame constitute a triangular structure that is foldably deformed into a quadrilateral shape, wherein the chassis and the rear wheel frame constitute a bottom edge of the triangular structure; the contact surface of the inner sleeve and the outer sleeve is provided with a wear layer; a spring, the spring pin is unlocked by a cable connection; the unlocking switch is disposed on the handle of the handlebar frame; a folding chain is disposed between the chassis and the axle seat, and the folding chain includes two chained chain arms to unlock The top piece is opposite to the folding chain, the shaft seat is provided with a hook, and the rear wheel frame is correspondingly provided with a hanging rod; the end of the inner sleeve sleeved in the outer sleeve is enlarged, and the end of the outer sleeve is matched accordingly A rotating shaft is disposed at both ends of the diagonal connecting rod, and is respectively connected to the seat rod and the rear wheel frame.

[0006] The beneficial effects of the invention are as follows: the same structure is added to the seat tube to realize the folding fast and the vibration damping is good, the operation is convenient, the folding step is reduced, the structure is firm, and the linkage and convenience of the retracting and releasing are improved. When the vehicle is folded, the seat tube is simply folded, and the entire folding process is completed in one step, which reduces the folding step compared with other solutions, reduces structural components, and saves costs. The overall retractable mechanism is ingenious, and the interlocking is achieved. The vibration damping improves the comfort and extends the service life of the components.

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 the structure of the chassis and the seat rod

[0014] FIG. 8 is a schematic view showing the structure of the vehicle 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 the unlocking top sheet limiting structure

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

[0021] FIG. 15 is a schematic structural diagram of unlocking the top end manipulation end

[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, a folding frame with a vibration damping device includes a shaft seat 3 including a vertical shaft hole 26 and a side shaft hole 27, wherein the handlebar frame 1 is connected by a steering shaft The vertical shaft hole 26 of the shaft base 3 is used to realize a steering motion; the seat rod 4 and the bottom plate 5 are connected to the side shaft hole 27 of the shaft base 3 through a horizontal axis, and can be folded and folded with respect to the handlebar frame 1. Rotating; 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 coupled to the chassis 5 via a folding shaft; a diagonal link 6 is disposed between the seat bar 4 and the rear wheel frame 18, The diagonal strut 6 is sleeved by the inner sleeve 11 and the outer sleeve 12, 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 The inner sleeve 11 is provided with a stroke limiting hole 13 , and the cross rod 14 is fixed to the outer sleeve 12 through the two ends of the stroke limiting hole 13; the diagonal strut 6 is provided with a vibration damping device 9 The vibration damping device 9 includes a spring; the chassis 5 is provided with a pin 7, the shaft of the shaft is correspondingly provided with a pin hole 8, the arc base and the arc top of the shaft seat 3 are respectively provided with pin holes 8 adapted to the spring pin 7; The bracing 6 is connected to a rod The front end portion of the rear wheel frame 18 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 contact surface of the tube 11 and the outer sleeve 12 is provided with a wear layer; the spring pin 7 includes a spring, 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 of the handlebar frame 1 A folding chain 22 is disposed between the chassis 5 and the axle base 3, the folding chain 22 includes two chained chain arms, the unlocking top piece 23 is opposite to the folding chain 22, and the shaft seat 3 is provided with a hook 24. The rear wheel frame 18 is correspondingly disposed with the hanging rod 25; the end portion 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 ends of the diagonal support rod 6 are respectively tightened; The rotating shaft 17 is provided and connected to the seat post 4 and the rear wheel frame 18, respectively.

[0029] 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 is adjacent to the inner sleeve 11, 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. The elasticity of the spring 10 itself can serve as a vibration damping effect; the outer ends of the inner sleeve 11 and the outer sleeve 12 are provided with a rotating shaft 17, an inner sleeve 11 and an outer sleeve. The tube 12 as a whole, that is, the diagonal link, can be folded and folded with respect to the seat rod 4 and the rear wheel frame 18; the inner sleeve 11 is provided with a travel limiting hole 13 through which the cross rod 14 passes. The two ends are fixed to the outer sleeve 12, and the movable stroke of the inner sleeve 11 is limited to the length of the stroke limiting hole 13 and is neither pulled out from the outer sleeve 12 nor excessively inserted.

[0030] The handlebar frame 1, the seat lever 4, and the chassis 5 are respectively shaft-connected to the axle seat 3, and the rear wheel carrier 18 is rotatably coupled to the chassis 5 through a folding shaft, and a diagonal support is provided between the seatbar 4 and the rear wheel carrier 18. a connecting rod 6, the bottom plate 5 is provided with a spring pin 7, and the shaft seat arc is correspondingly disposed with a pin hole 8; the diagonal strut link 6 is provided with a vibration damping device 9; the vibration damping device 9 comprises a spring 10; The connecting rod 6 is sleeved by the inner sleeve 11 and the outer sleeve 12, the spring 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; The inner sleeve 11 is provided with a travel limit hole 13 through which the cross rod 14 is fixed to the outer sleeve 12; the spring pin 7 includes a spring 10, and the spring pin 7 is connected and unlocked by the pull wire 幵a closing switch 15; the unlocking switch 15 is disposed on the handlebar 2 of the handlebar frame 1; the arc base and the arc top of the axle seat 3 are respectively provided with pin holes 8 adapted to the spring pin ₇ ; The inclined wedge type; the folding chain 22 is connected to the chassis 5 at the end, 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 hanging rod is provided with a protrusion on the opposite surface of the hook groove; the handlebar frame 1 is provided with a front wheel, the rear wheel frame 18 is provided with a rear wheel, and the seat bar 4 is provided for riding Seat. [0031] 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 is pivotable relative to the handlebar frame 1 to perform a kneading motion. 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. In correspondence with the support, the position of the seat lever 4 is also fixed to form a stable and stable triangular structure.

[0032] The folding cymbal is required, and the unlocking switch 15 is pulled by one hand. The elastic pin 7 is pulled out from the pin hole 8 of the bottom of the shaft seat by the pulling wire 16, and 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.

[0033] 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.

[0034] It is necessary to open from the folded state, and the unlocking switch 15 is operated again, 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. [0035] It is also possible to use the folding chain to realize unlocking and locking: the folding cymbal is required, the operating end 21 fixedly connected to the unlocking top piece 23 is first depressed or pressed, and the rotating shaft fixedly connected with the operating end 21 is rotated to unlock the top piece 23 The chain arm of the state is restrained, the folding chain 22 can be freely folded, and the chassis 5 can be closed upward with respect to the shaft seat 3 to achieve the unlocking effect, and the hand pulls up the seat to drive the seat rod 4 toward the handlebar frame 1 Closely, the skew support link 6 moves upwards, and the rear end of the chassis 5 and the front end of the rear wheel frame 18 are connected by a folding shaft, and the diagonal support link 6 moves upward to pull the front end of the rear wheel frame 18 upward. The rear end of the chassis 5 also moves upwards, and the chassis 5 and the rear wheel frame 18 form a downward angle with the folding shaft as an axis. The angle of the angle decreases with the folding movement of the whole vehicle, and is folded into position to become an angle. The rear end of the chassis 5 is upwardly moved, and the front end of the chassis 5 is axially coupled to the axle seat 3, that is, the chassis 5 is continuously upwardly oriented toward the handlebar frame 1, that is, the seatbar 4 drives the chassis 5 to also close upwards together. Seat lever 4 Handlebar holder 1 is closed to complete the same inch

The chassis 5 and the front frame 1 are also folded together, and the rear wheel frame 18 is folded downward to occupy the chassis 5 inches.

[0036] 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.

[0037] 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

[0038] Another embodiment is: the end of the inner sleeve 11 sleeved in the outer sleeve is enlarged, and the end portion of the outer sleeve 12 is correspondingly tightened, and the spring is disposed in the outer sleeve 12 and is opposite to the inner sleeve 11 Top, when the driver rides on the seat, the spring contracts, the upper sleeve moves downward, and the spring's contraction distance is the same as the stroke limit.

[0039] In order to extend the service life of the fitting and ensure the smoothness of the drawing, the contact faces of the inner sleeve 11 and the outer sleeve 12 are provided with a wear layer.

[0040] In order to achieve linkage locking and unlocking, one unlocking switch 15 can simultaneously unlock and lock the chassis 5 and other folding joints, other folding joints can be provided with a locking structure, and the pull wire 14 adds a sectional connection to unlock The bullet can be achieved.

[0041] Further, in order to prevent the pedaling operation end 21 from being jammed, a travel limit is set for the unlocking top piece 23, and the unlocking top piece 23 is provided with a sleeve, and the bottom plate is provided with a shaft matched with the sleeve, the shaft is fixed In the chassis 5, the unlocking topsheet 23 is rotatably connected to the chassis 5 through the shaft, and the sleeve is provided with the fins 28; the chain arm is provided with a concave arc to reserve the movement space for the unlocking of the topsheet 23. When the control end 21踩 is pressed, when the fins 28 are moved to the bottom of the chassis 5 and the 吋 is held, the unlocking of the top sheet 23 cannot continue downward, the travel limit is achieved, and then the frame folding is continued without blocking.

[0042] 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.

[0043] It should be noted that the above embodiments are merely preferred embodiments of the present invention, and any equivalent or similar replacements will fall within the scope of the working principle of the present invention for those skilled in the art. The scope of protection of the present invention.

Claims

Claim

A folding frame with a vibration damping device, comprising a shaft seat, the shaft seat comprising a vertical shaft hole and a side shaft hole, wherein the handlebar frame is connected to the vertical shaft hole of the shaft seat through a steering shaft to realize steering The seat rod and the chassis are connected to the side shaft hole of the shaft seat through the horizontal shaft, and can be folded and twisted with respect to the handlebar frame; the chassis is arranged separately from the rear wheel frame on which the rear wheel is mounted, and the rear wheel frame is folded by The shaft is rotatably connected with the chassis; a diagonal strut link is arranged between the seat rod and the rear wheel frame, and the diagonal strut link is sleeved by the inner sleeve and the outer sleeve, and the spring is disposed in the outer sleeve and is opposite to the inner sleeve The outer end of the inner sleeve and the outer sleeve is provided with a rotating shaft, and the inner sleeve is provided with a travel limiting hole, and the cross rod is fixed to the outer sleeve through both ends of the stroke limiting hole.

A folding frame with a vibration damping device according to claim 1, wherein the diagonal link is provided with a vibration damping device, and the vibration damping device comprises a spring.

The folding frame with a vibration damping device according to claim 1, wherein the chassis is provided with a spring pin, and the shaft seat arc is correspondingly provided with a pin hole, and the arc bottom and the arc top of the shaft seat are respectively set Pin hole that fits the pin.

A folding frame with a vibration damping device according to claim 1, wherein the diagonal link is connected to a front end portion of the rear wheel frame and is foldable with the seat bar, the chassis, and the rear wheel frame. The triangle structure is deformed into a quadrilateral shape, wherein the chassis and the rear wheel frame constitute a bottom edge of the triangular structure.

A folding frame with a vibration damping device according to claim 1, wherein the contact faces of the inner sleeve and the outer sleeve are provided with a wear layer.

A folding frame with a vibration damping device according to claim 3, wherein the spring pin comprises a spring, and the spring pin is unlocked by a wire connection.

A folding frame with a vibration damping device according to claim 6, wherein the unlocking switch is disposed on a handlebar of the handlebar frame.

The folding frame with a vibration damping device according to claim 1, wherein a folding chain is arranged between the chassis and the shaft seat, and the folding chain comprises two chained chain arms to unlock the top piece and The folding chain is topped, the shaft seat is provided with a hook, and the rear wheel frame is correspondingly provided with a hanging rod. [Claim 9] A folding frame with a vibration damping device according to claim 1, wherein an end portion of the inner sleeve sleeved in the outer sleeve is enlarged, and an end portion of the outer sleeve is matched with the end portion tight.

[Claim 10] A folding frame with a vibration damping device according to claim 1, wherein a shaft is disposed at both ends of the diagonal link, and is respectively coupled to the seat bar and the rear wheel frame.