CN210139937U

CN210139937U - Shock-absorbing front fork of bicycle

Info

Publication number: CN210139937U
Application number: CN201920714804.6U
Authority: CN
Inventors: 梅一多; 羿丹鸿; 梅新艺; 张浩浵; 杨剑超
Original assignee: Changzhou Qianyi Intelligent Manufacturing Technology Co ltd
Current assignee: Changzhou Qianyi Intelligent Manufacturing Technology Co ltd
Priority date: 2019-05-19
Filing date: 2019-05-19
Publication date: 2020-03-13
Anticipated expiration: 2029-05-19

Abstract

The utility model discloses a shock attenuation front fork of bicycle, including steering tube, support frame, first shock-absorbing structure and second shock-absorbing structure, the support frame upper end is fixed with the steering tube, and first shock-absorbing structure includes shoulder lid, stand and articulated seat, and the shaft hole has been seted up to the stand below, and articulated seat upper end has the spring board, and articulates on the axostylus axostyle above the spring board, the support frame includes first link, second link, third link and fourth link, and is fixed with the axostylus axostyle in the first link lower extreme outside, and install at the shoulder lid front end through the pivot in the first link middle part, and the second link front end articulates there is the third link, and the fourth link upper end is fixed with the steering tube. This shock attenuation front fork of bicycle adopts the lifting structure that the quadrangle warp brought goes up and down to replace inner tube and outer tube, does not have the lift friction problem between the upper and lower pipe, can not appear using more problem astringent more to can avoid appearing the front fork lock and die.

Description

Shock-absorbing front fork of bicycle

Technical Field

The utility model relates to a bicycle front fork technical field specifically is a shock attenuation front fork of bicycle.

Background

The damping front fork of a common bicycle comprises a steering tube, a shoulder cover, an inner tube and an outer tube, wherein the steering tube is inserted into the shoulder cover, the inner tube is fixedly connected with the shoulder cover, the inner tube is telescopically arranged in the outer tube, and an oil pressure type buffer mechanism is arranged in the inner tube and used for bearing the impact force transmitted by a front wheel to obtain comfortable riding feeling. However, the front fork of the upper and lower sleeves is used more and more difficultly in use, and the problem of locking is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming its front fork that can appear going up the lower casing in the use and use more and more astringent to appear locking the defect of dead problem easily, provide a damping front fork of bicycle. The shock absorption front fork of the bicycle comprises a steering tube, a support frame, a first shock absorption structure and a second shock absorption structure, the problem that the front fork is used more and more astringent is solved, and the characteristic that the front fork is locked can be avoided.

In order to achieve the above object, the utility model provides a following technical scheme: a shock absorption front fork of a bicycle comprises a steering tube, a support frame, a first shock absorption structure and a second shock absorption structure, wherein the steering tube is fixed at the upper end of the support frame, the second shock absorption structure is connected to the left side of the support frame, the first shock absorption structure is connected to the right side of the support frame, the first shock absorption structure comprises a shoulder cover, an upright post and a hinge seat, the shoulder cover is fixed at the upper end of the upright post, a shaft hole is formed below the upright post, the hinge seat is fixed on the upright post at the inner side of the shaft hole, a spring plate is hinged to the upper end of the hinge seat, and the upper part of;

the support frame includes first link, second link, third link and fourth link, and is fixed with the axostylus axostyle in the first link lower extreme outside, and install at the shoulder lid front end through the pivot in the first link middle part, and first link inboard is fixed with the second link through the pivot, and second link front end articulates there is the third link, and third link upper end articulates there is the fourth link, and the fourth link upper end is fixed with the steering tube, and the fourth link rear end is articulated with first link upper end.

Preferably, the connecting line of the rotating shafts at the two ends of the fourth connecting frame arranged on the supporting frame is parallel to the connecting line of the rotating shafts at the two ends of the second connecting frame, two groups of second connecting frames arranged on the supporting frame form triangular arrangement, and meanwhile, the fourth connecting frame is of a triangular structure capable of being folded and unfolded forwards.

Preferably, a supporting plate is fixed in the middle of the first connecting frame, a lower clamping groove is formed below the supporting plate, an upper clamping groove is formed above the supporting plate, a through hole is formed in the upper end of the upper clamping groove, and a shaft rod is fixed on the outer sides of the bottoms of the two side plates of the lower clamping groove.

Preferably, the distance between the inner parts of the upper clamping grooves arranged at the upper end of the first connecting frame is smaller than the distance between the inner parts of the lower clamping grooves, the distance between the inner parts of the upper clamping grooves is the same as the width of the rear end of the fourth connecting frame, the rear end of the fourth connecting frame is arranged in the upper clamping grooves, and the pin rod penetrating through the connecting hole arranged at the rear end of the fourth connecting frame can rotate in the upper clamping groove.

Preferably, the middle parts of two side plates of a lower clamping groove arranged below the first connecting frame are provided with rotating shaft holes, the outer side of the lower clamping groove is matched with the inner sides of the shoulder covers on two sides, the rotating shafts penetrate through the shoulder covers, the first connecting frame and the second connecting frame, and meanwhile the rear ends of the two groups of second connecting frames are matched with the inner sides of the first connecting frame.

Preferably, the stand is the hollow cylinder pipeline of carbon steel material, and the stand upper end is fixed with the shoulder lid of plastics material, and shoulder lid and stand form direct structure, and the articulated seat of shoulder lid inboard and stand below fixed is in same direction simultaneously.

Preferably, the lower end of the third connecting frame is clamped in the two groups of second connecting frames, the distance between the clamping plates arranged at the front ends of the two groups of second connecting frames is smaller than the distance between the rear ends of the two groups of second connecting frames, a U-shaped frame is arranged at the upper end of the third connecting frame, and the mounting head of the second connecting frame arranged at the front end of the fourth connecting frame is inserted in the U-shaped frame.

Compared with the prior art, the beneficial effects of the utility model are that: this shock attenuation front fork of bicycle adopts external elastic steel plate to replace traditional spring setting to adopt the lifting structure of structure lift replacement inner tube and outer tube that the quadrangle warp brought, there is not the lifting friction problem between the upper and lower pipe, can not appear using more problem more astringent, and can avoid appearing the front fork lock and die.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

FIG. 3 is a schematic view of the first connecting frame of the present invention;

fig. 4 is a partial schematic view of the structure supporting frame of the present invention.

Reference numbers in the figures: 1. the steering tube, 2, the support frame, 3, first shock-absorbing structure, 4, the second shock-absorbing structure, 5, first link, 6, the pivot, 7, the shoulder lid, 8, the stand, 9, the shaft hole, 10, articulated seat, 11, the spring board, 12, the axostylus axostyle, 13, the second link, 14, the third link, 15, the fourth link, 16, lower clamping groove, 17, the backup pad, 18, the through-hole, 19, upper clamping groove, 20, pivot hole, 21, the splint, 22, U type frame, 23, the connecting hole, 24, the second link installation head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a shock-absorbing front fork of a bicycle comprises a steering tube 1, a support frame 2, a first shock-absorbing structure 3 and a second shock-absorbing structure 4, wherein the upper end of the support frame 2 is fixed with the steering tube 1, the left side of the support frame 2 is connected with the second shock-absorbing structure 4, the right side of the support frame 2 is connected with the first shock-absorbing structure 3, the connecting line of the rotating shafts at the two ends of a fourth connecting frame 15 arranged on the support frame 2 is parallel to the connecting line of the rotating shafts at the two ends of a second connecting frame 13, two groups of second connecting frames 13 arranged on the support frame 2 form triangular arrangement, meanwhile, the fourth connecting frame 15 is a triangular structure which is folded forwards, the first shock-absorbing structure 3 comprises a shoulder cover 7, a stand column 8 and a hinged seat 10, the shoulder cover 7 is fixed at the upper end of the stand column 8, a shaft hole 9 is arranged below the stand column 8, the hinged seat 10 is fixed on the stand column 8 at the inner side of the shaft hole 9, the stand, the shoulder cover 7 and the upright post 8 form a direct structure, the inner side of the shoulder cover 7 and a hinged seat 10 fixed below the upright post 8 are in the same direction, the upper end of the hinged seat 10 is hinged with a spring plate 11, the upper side of the spring plate 11 is hinged on a shaft rod 12, the support frame 2 comprises a first connecting frame 5, a second connecting frame 13, a third connecting frame 14 and a fourth connecting frame 15, the outer side of the lower end of the first connecting frame 5 is fixed with the shaft rod 12, the middle part of the first connecting frame 5 is arranged at the front end of the shoulder cover 7 through a rotating shaft 6, the inner side of the first connecting frame 5 is fixed with the second connecting frame 13 through the rotating shaft 6, the middle part of the first connecting frame 5 is fixed with a support plate 17, a lower clamping groove 16 is arranged below the support plate 17, an upper clamping groove 19 is arranged above the support plate 17, meanwhile, the upper end of the upper clamping groove 19 is provided with a through hole 18, the outer sides of the bottoms of two side plates of the lower clamping groove 16 are fixed with the shaft rod 12, the inner space of the upper clamping groove 19 is the same as the width of the rear end of the fourth connecting frame 15, the rear end of the fourth connecting frame 15 is arranged in the upper clamping groove 19, a connecting hole 23 arranged at the rear end of the fourth connecting frame 15 is internally provided with a pin rod which can rotate in the upper clamping groove 19, the middle parts of two side plates of a lower clamping groove 16 arranged below the first connecting frame 5 are provided with rotating shaft holes 20, the outer side of the lower clamping groove 16 is matched with the inner sides of shoulder covers 7 at two sides, a rotating shaft 6 is arranged in the shoulder covers 7, the first connecting frame 5 and the second connecting frame 13 in a penetrating way, the rear ends of two groups of second connecting frames 13 are matched with the inner side of the first connecting frame 5, the front end of the second connecting frame 13 is hinged with a third connecting frame 14, the upper end of the third connecting frame 14 is hinged with the fourth connecting frame 15, the lower end of the third connecting frame 14 is clamped in the two groups of second connecting frames 13, and the space of clamping plates 21 arranged at the front ends of the two groups of the second, meanwhile, the upper end of the third connecting frame 14 is provided with a U-shaped frame 22, a second connecting frame mounting head 24 arranged at the front end of the fourth connecting frame 15 is inserted into the U-shaped frame 22, the upper end of the fourth connecting frame 15 is fixed with a steering tube 1, and the rear end of the fourth connecting frame 15 is hinged with the upper end of the first connecting frame 5.

When using the shock attenuation front fork of this bicycle, install the wheel inside shaft hole 9, under the circumstances of atress, steering tube 1 has decurrent power, promote fourth link 15 and push down, make first link 5 rotate round lower clamping groove 16, and then make axostylus axostyle 12 of first link 5 below drive spring plate 11 and pull up, form the deformation with spring plate 11, convert pressure into the internal force of spring plate 11, the atress is ended, spring plate 11 gets back to original length, drive first link 5 and get back to the primary importance, and support frame 2 forms original parallel triangular structure, this is exactly the whole process of the shock attenuation front fork work of this bicycle.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shock attenuation front fork of bicycle, includes steering tube (1), support frame (2), first shock-absorbing structure (3) and second shock-absorbing structure (4), its characterized in that: the steering tube (1) is fixed to the upper end of the support frame (2), the left side of the support frame (2) is connected with a second damping structure (4), the right side of the support frame (2) is connected with a first damping structure (3), the first damping structure (3) comprises a shoulder cover (7), a stand column (8) and a hinge seat (10), the shoulder cover (7) is fixed to the upper end of the stand column (8), a shaft hole (9) is formed in the lower portion of the stand column (8), the hinge seat (10) is fixed to the stand column (8) on the inner side of the shaft hole (9), a spring plate (11) is hinged to the upper end of the hinge seat (10), and the upper portion of the spring plate (11) is hinged to the;

support frame (2) include first link (5), second link (13), third link (14) and fourth link (15), and first link (5) lower extreme outside is fixed with axostylus axostyle (12), install at shoulder lid (7) front end through pivot (6) in first link (5) middle part, and first link (5) inboard is fixed with second link (13) through pivot (6), second link (13) front end is articulated to have third link (14), and third link (14) upper end is articulated to have fourth link (15), fourth link (15) upper end is fixed with steering tube (1), and fourth link (15) rear end is articulated with first link (5) upper end.

2. The shock absorbing front fork for a bicycle of claim 1, wherein: the connecting line of the rotating shafts at the two ends of the fourth connecting frame (15) arranged on the supporting frame (2) is parallel to the connecting line of the rotating shafts at the two ends of the second connecting frame (13), two groups of second connecting frames (13) arranged on the supporting frame (2) form triangular arrangement, and meanwhile, the fourth connecting frame (15) is of a triangular structure capable of being folded and divided forwards.

3. The shock absorbing front fork for a bicycle of claim 1, wherein: a supporting plate (17) is fixed in the middle of the first connecting frame (5), a lower clamping groove (16) is formed below the supporting plate (17), an upper clamping groove (19) is formed above the supporting plate (17), a through hole (18) is formed in the upper end of the upper clamping groove (19), and a shaft rod (12) is fixed on the outer sides of the bottoms of two side plates of the lower clamping groove (16).

4. The shock absorbing front fork for a bicycle of claim 1, wherein: the inner space of an upper clamping groove (19) formed in the upper end of the first connecting frame (5) is smaller than the inner space of a lower clamping groove (16), the inner space of the upper clamping groove (19) is the same as the width of the rear end of a fourth connecting frame (15), the rear end of the fourth connecting frame (15) is installed inside the upper clamping groove (19), and a pin rod penetrates through a connecting hole (23) formed in the rear end of the fourth connecting frame (15) and can rotate inside the upper clamping groove (19).

5. The shock absorbing front fork for a bicycle of claim 1, wherein: the rotating shaft is characterized in that rotating shaft holes (20) are formed in the middle of two side plates of a lower clamping groove (16) arranged below the first connecting frame (5), the outer side of the lower clamping groove (16) is matched with the inner sides of shoulder covers (7) on two sides, the rotating shaft (6) penetrates through the shoulder covers (7), the first connecting frame (5) and the second connecting frame (13), and meanwhile the rear ends of the two groups of second connecting frames (13) are matched with the inner sides of the first connecting frame (5).

6. The shock absorbing front fork for a bicycle of claim 1, wherein: the stand (8) are the hollow cylinder pipeline of carbon steel material, and stand (8) upper end is fixed with shoulder lid (7) of plastics material, and shoulder lid (7) and stand (8) form direct structure, and the articulated seat (10) of shoulder lid (7) inboard and stand (8) below fixed is in same direction simultaneously.

7. The shock absorbing front fork for a bicycle of claim 1, wherein: the lower end of the third connecting frame (14) is clamped in the two groups of second connecting frames (13), the distance between clamping plates (21) arranged at the front ends of the two groups of second connecting frames (13) is smaller than the distance between the rear ends of the two groups of second connecting frames (13), a U-shaped frame (22) is arranged at the upper end of the third connecting frame (14), and a second connecting frame mounting head (24) arranged at the front end of the fourth connecting frame (15) is inserted in the U-shaped frame (22).