CN219544992U - Damping structure for folding bicycle frame - Google Patents

Abstract

The utility model belongs to the technical field of bicycle frame shock absorption, and particularly relates to a shock absorption structure for a folding bicycle frame, which comprises a front frame and a folding mechanism arranged at one end of the front frame, wherein the folding mechanism also comprises a folding assembly, a working assembly and a positioning assembly; the folding assembly comprises a rear frame and a positioning frame, one end of the front frame is connected with the rear frame in a rotating mode, and the outer wall of the rear frame is fixedly connected with the positioning frame; the utility model provides a work subassembly includes push rod, flexible link plate, positioning spring, flexible orifice plate, sliding hole groove, spliced pole and flexible slider, and this a shock-absorbing structure for folding bicycle frame is through setting up flexible piece and the pothook of supporting, and flexible link plate slides the sliding hole groove synchronous slip that drives flexible orifice plate outer wall, and the sliding hole groove slides and drives flexible slider along positioning frame's inner wall through the spliced pole and slide, and flexible slider slides and drives trapezoidal flexible piece and the pothook looks block of "T" font, avoids front frame and back frame to take place to fold because the vibration when riding.

Description

Damping structure for folding bicycle frame

Technical Field

The utility model belongs to the technical field of bicycle frame shock absorption, and particularly relates to a shock absorption structure for a folding bicycle frame.

Background

The folding bicycle belongs to a classification of bicycles, and is generally composed of a frame folding joint and a vertical pipe folding joint, the front wheel and the rear wheel are folded together through frame folding, the length of the folding bicycle can be reduced by about 45%, the whole bicycle can be placed in a folding bag after being folded, and a trunk of the bicycle can be folded and unfolded manually without using external tools in the folding process, the folding bicycle can be erected stably after being folded by taking a seat rod as a supporting point, and the folding bicycle is convenient to carry and use and mature in production process.

For example, chinese patent with publication number CNCN214296287U discloses a shock attenuation folding bicycle frame, including girder, front fork sleeve pipe, riser and back fork frame, the back position is equipped with the folder in the middle of the girder, the riser below rigid coupling has the well axle sleeve pipe, the position rigid coupling has the supporting seat in the middle of the riser front side down, the back fork frame lower extreme articulates in well axle sleeve pipe rear side, back fork frame upper end articulates has first bumper shock absorber, the first bumper shock absorber other end articulates in the riser rear side, the articulated department downside of back fork first bumper shock absorber articulates there is the connecting plate, the connecting plate other end articulates in the supporting seat, the connecting plate middle part is equipped with the dodge groove of dodging the riser, the connecting plate is close to the supporting seat position and articulates there is the second bumper shock absorber, the second bumper shock absorber other end articulates in girder folder rear side. The bicycle can be folded when not in use, the occupied space is reduced, and the double shock absorbers can greatly reduce the vibration caused by road bump and improve the comfort of a rider.

When the folding bicycle frame is used, when the folding bicycle frame encounters a bumpy road section, the folding part of the bicycle vibrates to cause the folding part to loose, and a user cannot normally ride.

Disclosure of Invention

The utility model aims at solving the technical problems and provides a shock absorption structure for a folding bicycle frame, which achieves the effect of stable clamping of folding parts.

In view of the above, the present utility model provides a shock absorbing structure for a folding bicycle frame, comprising a front frame and a folding mechanism disposed at one end of the front frame, the folding mechanism further comprising a folding assembly, a working assembly and a positioning assembly;

the folding assembly comprises a rear frame and a positioning frame, one end of the front frame is connected with the rear frame in a rotating mode, and the outer wall of the rear frame is fixedly connected with the positioning frame;

the working assembly comprises a push rod, a telescopic connecting plate, a positioning spring, a telescopic orifice plate, a sliding hole groove, a connecting column and a telescopic sliding block, wherein the push rod penetrates through the inner wall of the positioning frame, one end of the push rod is fixedly connected with the telescopic connecting plate, the outer wall of the telescopic connecting plate is fixedly connected with the positioning spring, one end of the telescopic connecting plate is fixedly connected with the telescopic orifice plate, the sliding hole groove is formed in the outer wall of the telescopic orifice plate, the connecting column is movably connected with the outer wall of the sliding hole groove, and the telescopic sliding block is fixedly connected with the outer wall of the connecting column;

the positioning assembly comprises a telescopic supporting block, a clamping hook and a limiting plate, wherein one end of the telescopic sliding block is fixedly connected with the telescopic supporting block, the clamping hook is clamped on the outer wall of the telescopic supporting block, and the limiting plate fixedly connected with the outer wall of the front frame is connected with the outer wall of the clamping hook in a sliding manner.

Based on the structure, the sliding hole groove slides and drives the telescopic sliding block to slide along the inner wall of the positioning frame through the connecting column, the telescopic sliding block slides and drives the trapezoidal telescopic supporting block to be clamped with the T-shaped clamping hook, and the front frame and the rear frame are prevented from being folded due to vibration during riding.

Preferably, one end of the front frame far away from the rear frame is connected with a front wheel frame in a rotating mode, the bottom end of the front wheel frame is fixedly connected with a shock absorption column, the bottom end of the shock absorption column is fixedly connected with a first spring, a first damper is arranged in the first spring, one end of the first damper is fixedly connected with a shock absorption cylinder which is connected with the outer wall of the shock absorption column in a sliding mode, a front wheel is mounted at the bottom end of the shock absorption cylinder, and shock absorption operation of the front wheel frame is achieved.

Preferably, one end fixedly connected with lift section of thick bamboo of back frame, the inside of lift section of thick bamboo runs through has the lifting support, the inner wall fixedly connected with second damping of lifting support, the damped outside of second is provided with the second spring, the top fixedly connected with of second spring and lifting support inner wall sliding connection's flexible post, the seat is installed on the top of flexible post, realizes the operation of moving away to avoid possible earthquakes to the seat.

Preferably, the outer wall of the lifting cylinder is connected with a rear wheel frame in a rotating mode, rear wheels are mounted at the bottom end of the rear wheel frame, the outer wall of the rear wheel frame is connected with a first connecting block in a rotating mode, the outer wall of the first connecting block is fixedly connected with a third spring, and the bottom end of the third spring is fixedly connected with a second connecting block connected with the outer wall of the lifting cylinder in a rotating mode, so that the vibration absorbing operation of the rear wheel frame is achieved.

Preferably, the sliding hole groove is inclined, and the telescopic sliding block forms a sliding structure with the positioning frame through the sliding hole groove and the connecting column, so that the sliding control operation of the telescopic sliding block is realized.

Preferably, the appearance of pothook is "T" font, the appearance of flexible piece of supporting is trapezoidal, the pothook passes through and constitutes the block structure between flexible slider and the positioning frame, avoids front frame and back frame to take place to fold because of the vibration when riding.

Preferably, the damping column forms a telescopic structure between the first spring and the damping cylinder, the power of the damping column is converted into elastic potential energy of the first spring, and the elastic potential energy of the first spring is converted into internal energy through first damping.

Preferably, the telescopic column forms a telescopic structure between the second spring and the lifting support, kinetic energy of the telescopic column is converted into elastic potential energy of the second spring, and the elastic potential energy of the second spring is converted into internal energy through second damping.

Preferably, a rotating structure is formed between the third spring and the lifting cylinder, the rear wheel frame rotates to convert kinetic energy into elastic potential energy of the third spring, and the third spring with a larger elastic coefficient is arranged to absorb the kinetic energy of the rear wheel frame rotation and convert the kinetic energy into the internal energy of the third spring.

The beneficial effects of the utility model are as follows:

1. this a shock-absorbing structure for folding bicycle frame is through setting up flexible piece and the pothook of supporting, and flexible even board slides the sliding hole groove synchronous slip of driving flexible orifice board outer wall, and the sliding hole groove slides and drives flexible slider through the spliced pole and slide along the inner wall of locating frame, and flexible slider slides and drives trapezoidal flexible piece and the pothook looks block of supporting of "T" font, avoids front frame and back frame to take place to fold because the vibration when riding.

2. This a shock-absorbing structure for folding bicycle frame is through setting up first spring, second spring and third spring, when meetting the highway section of jolting, the front truck can appear vibrating, front truck vibration drives first spring and compresses, the power of shock-absorbing column is converted into the elastic potential energy of first spring, and through the elastic potential energy conversion of first damping into the internal energy, realize the operation of moving away to the front truck, simultaneously, the seat vibration slides and drives the second spring and compress, the kinetic energy of telescopic column is converted into the elastic potential energy of second spring, and through the elastic potential energy conversion of second damping into the internal energy, realize the operation of moving away to the seat, the back truck rotates the kinetic energy is converted into the elastic potential energy of third spring, through setting up the great third spring of elastic coefficient, can absorb back truck pivoted kinetic energy, and convert into the internal energy of third spring, be favorable to improving the stability when user rides.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic view of a first spring structure according to the present utility model;

FIG. 5 is a schematic view of a second spring structure according to the present utility model;

fig. 6 is a schematic view of a third spring structure according to the present utility model.

The label in the figure is:

1. a front frame; 2. a rear frame; 3. a positioning frame; 4. a push rod; 5. a telescopic connecting plate; 6. a positioning spring; 7. a telescoping orifice plate; 8. a sliding hole groove; 9. a connecting column; 10. a telescopic slide block; 11. a telescopic supporting block; 12. a clamping hook; 13. a limiting plate; 14. a front wheel frame; 1401. a front wheel; 15. a shock-absorbing column; 16. a first spring; 17. a first damping; 18. a shock absorbing cylinder; 19. a lifting cylinder; 20. a lifting bracket; 21. a second damping; 22. a second spring; 23. a telescopic column; 24. a seat; 25. a rear wheel frame; 2501. a rear wheel; 26. a first connection block; 27. a third spring; 28. and a second connecting block.

Detailed Description

The present utility model is described in further detail below with reference to fig. 1-6.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

The embodiment of the utility model discloses a shock absorption structure for a folding bicycle frame, which comprises a front frame 1, a folding mechanism arranged at one end of the front frame 1, a folding assembly, a working assembly and a positioning assembly, wherein the folding mechanism comprises a folding seat and a positioning seat;

the folding assembly comprises a rear frame 2 and a positioning frame 3, one end of the front frame 1 is connected with the rear frame 2 in a rotating way, and the outer wall of the rear frame 2 is fixedly connected with the positioning frame 3;

the working assembly comprises a push rod 4, a telescopic connecting plate 5, a positioning spring 6, a telescopic orifice plate 7, a sliding orifice groove 8, a connecting column 9 and a telescopic sliding block 10, wherein the push rod 4 penetrates through the inner wall of the positioning frame 3, one end of the push rod 4 is fixedly connected with the telescopic connecting plate 5, the positioning spring 6 is fixedly connected with the outer wall of the telescopic connecting plate 5, one end of the telescopic connecting plate 5 is fixedly connected with the telescopic orifice plate 7, the sliding orifice groove 8 is formed in the outer wall of the telescopic orifice plate 7, the connecting column 9 is movably connected with the outer wall of the sliding orifice groove 8, and the telescopic sliding block 10 is fixedly connected with the outer wall of the connecting column 9;

the positioning assembly comprises a telescopic supporting block 11, a clamping hook 12 and a limiting plate 13, wherein one end of the telescopic sliding block 10 is fixedly connected with the telescopic supporting block 11, the clamping hook 12 is clamped on the outer wall of the telescopic supporting block 11, and the limiting plate 13 fixedly connected with the outer wall of the front frame 1 is slidably connected with the outer wall of the clamping hook 12.

Based on the structure, the sliding hole groove 8 slides and drives the telescopic sliding block 10 to slide along the inner wall of the positioning frame 3 through the connecting column 9, and the telescopic sliding block 10 slides and drives the trapezoidal telescopic supporting block 11 to be clamped with the T-shaped clamping hook 12, so that the front frame 1 and the rear frame 2 are prevented from being folded due to vibration during riding.

In one embodiment, one end of the front frame 1 far away from the rear frame 2 is screwed with a front wheel frame 14, the bottom end of the front wheel frame 14 is fixedly connected with a shock absorption column 15, the bottom end of the shock absorption column 15 is fixedly connected with a first spring 16, a first damper 17 is arranged in the first spring 16, one end of the first damper 17 is fixedly connected with a shock absorption tube 18 which is slidably connected with the outer wall of the shock absorption column 15, and a front wheel 1401 is arranged at the bottom end of the shock absorption tube 18.

In this embodiment, when the front wheel frame 14 encounters a bumpy road section, vibration occurs on the front wheel frame 14, the vibration of the front wheel frame 14 drives the shock-absorbing column 15 to slide along the inner wall of the shock-absorbing cylinder 18, the shock-absorbing column 15 slides to drive the first spring 16 to compress, power of the shock-absorbing column 15 is converted into elastic potential energy of the first spring 16, and the elastic potential energy of the first spring 16 is converted into internal energy through the first damper 17, so that the shock-absorbing operation of the front wheel frame 14 is realized.

In one embodiment, one end of the rear frame 2 is fixedly connected with a lifting cylinder 19, the lifting bracket 20 penetrates through the interior of the lifting cylinder 19, the inner wall of the lifting bracket 20 is fixedly connected with a second damper 21, a second spring 22 is arranged outside the second damper 21, the top end of the second spring 22 is fixedly connected with a telescopic column 23 which is in sliding connection with the inner wall of the lifting bracket 20, and a seat 24 is arranged at the top end of the telescopic column 23.

In this embodiment, when the seat 24 is in a bumpy road section, the seat 24 vibrates to drive the telescopic column 23 to slide along the inner wall of the lifting bracket 20, the telescopic column 23 slides to drive the second spring 22 to compress, kinetic energy of the telescopic column 23 is converted into elastic potential energy of the second spring 22, and the elastic potential energy of the second spring 22 is converted into internal energy through the second damper 21, so that the vibration absorbing operation of the seat 24 is realized.

In one embodiment, the outer wall of the lifting cylinder 19 is screwed with a rear wheel frame 25, the bottom end of the rear wheel frame 25 is provided with a rear wheel 2501, the outer wall of the rear wheel frame 25 is screwed with a first connecting block 26, the outer wall of the first connecting block 26 is fixedly connected with a third spring 27, and the bottom end of the third spring 27 is fixedly connected with a second connecting block 28 screwed with the outer wall of the lifting cylinder 19.

In this embodiment, when the rear wheel frame 25 rotates during a bumpy road section, the kinetic energy is converted into the elastic potential energy of the third spring 27 by rotating the rear wheel frame 25, and the kinetic energy of the rear wheel frame 25 can be absorbed by setting the third spring 27 with a larger elastic coefficient and converted into the internal energy of the third spring 27, so that the stability of the user during riding is improved.

In one embodiment, the sliding hole groove 8 is inclined, and the telescopic sliding block 10 forms a sliding structure with the positioning frame 3 through the sliding hole groove 8 and the connecting column 9.

In this embodiment, the sliding hole groove 8 slides through the connecting post 9 to drive the telescopic sliding block 10 to slide along the inner wall of the positioning frame 3, so as to realize the sliding control operation of the telescopic sliding block 10.

In one embodiment, the shape of the hook 12 is T-shaped, the shape of the telescopic supporting block 11 is trapezoid, and the hook 12 forms a clamping structure with the positioning frame 3 through the telescopic sliding block 10.

In this embodiment, the telescopic slider 10 slides to drive the trapezoidal telescopic support block 11 to be engaged with the T-shaped hook 12, so as to avoid the front frame 1 and the rear frame 2 from being folded due to vibration during riding.

In one embodiment, the shock strut 15 is formed into a telescopic structure between the first spring 16 and the shock tube 18.

In this embodiment, the shock-absorbing column 15 slides to drive the first spring 16 to compress, so that the power of the shock-absorbing column 15 is converted into the elastic potential energy of the first spring 16, and the elastic potential energy of the first spring 16 is converted into the internal energy through the first damper 17, so as to realize the shock-absorbing operation on the front wheel frame 14.

In one embodiment, the telescopic column 23 forms a telescopic structure with the lifting bracket 20 through the second spring 22.

In this embodiment, the telescopic column 23 slides to drive the second spring 22 to compress, so that kinetic energy of the telescopic column 23 is converted into elastic potential energy of the second spring 22, and the elastic potential energy of the second spring 22 is converted into internal energy through the second damper 21, so as to realize the shock absorbing operation of the seat 24.

In one embodiment, the rear wheel frame 25 is configured to rotate with the lifting drum 19 via a third spring 27.

In this embodiment, the kinetic energy is converted into the elastic potential energy of the third spring 27 by rotating the rear wheel frame 25, and the kinetic energy of the rear wheel frame 25 can be absorbed by setting the third spring 27 with a larger elastic coefficient and converted into the internal energy of the third spring 27, which is beneficial to improving the stability of the user during riding.

When the shock-absorbing structure for the folding bicycle frame of the embodiment is used, firstly, folding operation is carried out on the front frame 1 and the rear frame 2, a user rotates the rear frame 2 so that the central axis of the rear frame 2 coincides with the central axis of the front frame 1, then, the clamping hooks 12 are inserted into the positioning frame 3 along the limiting plates 13, the positioning springs 6 drive the telescopic connecting plates 5 to slide through self elasticity, the telescopic connecting plates 5 drive the sliding hole grooves 8 of the outer walls of the telescopic pore plates 7 to synchronously slide, the sliding hole grooves 8 drive the telescopic sliding blocks 10 to slide along the inner walls of the positioning frame 3 through the connecting columns 9, and the telescopic sliding blocks 10 slide to drive the trapezoidal telescopic supporting blocks 11 to be clamped with the clamping hooks 12 in a T shape, so that the front frame 1 and the rear frame 2 are prevented from being folded due to vibration during riding.

Then, when the front wheel frame 14 is in a bumpy road section, vibration occurs, the front wheel frame 14 vibrates to drive the shock absorption column 15 to slide along the inner wall of the shock absorption tube 18, the shock absorption column 15 slides to drive the first spring 16 to compress, power of the shock absorption column 15 is converted into elastic potential energy of the first spring 16, the elastic potential energy of the first spring 16 is converted into internal energy through the first damping 17, vibration of the front wheel frame 14 is achieved, meanwhile, vibration of the seat 24 also occurs, the seat 24 vibrates to drive the telescopic column 23 to slide along the inner wall of the lifting support 20, the telescopic column 23 slides to drive the second spring 22 to compress, kinetic energy of the telescopic column 23 is converted into elastic potential energy of the second spring 22, and the elastic potential energy of the second spring 22 is converted into internal energy through the second damping 21, so that vibration of the seat 24 is achieved.

Finally, when the rear wheel frame 25 rotates during a bumpy road section, the rear wheel frame 25 rotates to convert kinetic energy into elastic potential energy of the third spring 27, and the third spring 27 with a larger elastic coefficient is arranged to absorb the kinetic energy of the rear wheel frame 25 and convert the kinetic energy into the internal energy of the third spring 27, so that the stability of a user during riding is improved.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (9)

1. A shock-absorbing structure for folding bicycle frame, includes preceding frame (1) and sets up the folding mechanism in preceding frame (1) one end, its characterized in that: the folding mechanism further comprises a folding component, a working component and a positioning component;

the folding assembly comprises a rear frame (2) and a positioning frame (3), wherein one end of the front frame (1) is connected with the rear frame (2) in a rotating mode, and the positioning frame (3) is fixedly connected with the outer wall of the rear frame (2);

the working assembly comprises a push rod (4), a telescopic connecting plate (5), a positioning spring (6), a telescopic orifice plate (7), a sliding orifice groove (8), a connecting column (9) and a telescopic sliding block (10), wherein the push rod (4) penetrates through the inner wall of the positioning frame (3), one end of the push rod (4) is fixedly connected with the telescopic connecting plate (5), the outer wall of the telescopic connecting plate (5) is fixedly connected with the positioning spring (6), one end of the telescopic connecting plate (5) is fixedly connected with the telescopic orifice plate (7), the sliding orifice groove (8) is formed in the outer wall of the telescopic orifice plate (7), the connecting column (9) is movably connected with the outer wall of the sliding orifice groove (8), and the telescopic sliding block (10) is fixedly connected with the outer wall of the connecting column (9).

The positioning assembly comprises a telescopic supporting block (11), a clamping hook (12) and a limiting plate (13), wherein one end of the telescopic sliding block (10) is fixedly connected with the telescopic supporting block (11), the clamping hook (12) is clamped on the outer wall of the telescopic supporting block (11), and the limiting plate (13) fixedly connected with the outer wall of the front frame (1) is slidably connected with the outer wall of the clamping hook (12).

2. The shock absorbing structure for a folding bicycle frame according to claim 1, wherein: the front wheel frame is characterized in that one end of the front frame (1) away from the rear frame (2) is rotatably connected with the front wheel frame (14), the bottom end fixedly connected with shock absorber column (15) of the front wheel frame (14), the bottom end fixedly connected with first spring (16) of the shock absorber column (15), first damping (17) is arranged in the first spring (16), one end fixedly connected with of the first damping (17) is connected with a shock absorber tube (18) in sliding connection with the outer wall of the shock absorber column (15), and a front wheel (1401) is mounted at the bottom end of the shock absorber tube (18).

3. The shock absorbing structure for a folding bicycle frame according to claim 1, wherein: one end fixedly connected with lift section of thick bamboo (19) of back frame (2), the inside of lift section of thick bamboo (19) is run through has lift support (20), the inner wall fixedly connected with second damping (21) of lift support (20), the outside of second damping (21) is provided with second spring (22), the top fixedly connected with of second spring (22) and lift support (20) inner wall sliding connection's telescopic column (23), seat (24) are installed on the top of telescopic column (23).

4. A shock absorbing structure for a folding bicycle frame according to claim 3, wherein: the outer wall of a lifting cylinder (19) is connected with a rear wheel frame (25) in a rotating mode, rear wheels (2501) are mounted at the bottom end of the rear wheel frame (25), the outer wall of the rear wheel frame (25) is connected with a first connecting block (26) in a rotating mode, the outer wall of the first connecting block (26) is fixedly connected with a third spring (27), and the bottom end of the third spring (27) is fixedly connected with a second connecting block (28) connected with the outer wall of the lifting cylinder (19) in a rotating mode.

5. The shock absorbing structure for a folding bicycle frame according to claim 1, wherein: the sliding hole groove (8) is inclined, and the telescopic sliding block (10) forms a sliding structure with the positioning frame (3) through the sliding hole groove (8) and the connecting column (9).

6. The shock absorbing structure for a folding bicycle frame according to claim 1, wherein: the appearance of the clamping hook (12) is T-shaped, the appearance of the telescopic supporting block (11) is trapezoid, and the clamping hook (12) and the positioning frame (3) form a clamping structure through the telescopic sliding block (10).

7. The shock absorbing structure for a folding bicycle frame according to claim 2, wherein: the damping column (15) forms a telescopic structure between the first spring (16) and the damping cylinder (18).

8. A shock absorbing structure for a folding bicycle frame according to claim 3, wherein: the telescopic column (23) forms a telescopic structure with the lifting bracket (20) through the second spring (22).

9. The shock absorbing structure for a folding bicycle frame as defined in claim 4, wherein: the rear wheel frame (25) and the lifting cylinder (19) form a rotary structure through a third spring (27).