CN217320644U

CN217320644U - Bicycle suspension fork with spring quick replacement structure

Info

Publication number: CN217320644U
Application number: CN202221237429.9U
Authority: CN
Inventors: 李康乐
Original assignee: Dongtai Kanglong Vehicle Industry Co ltd
Current assignee: Dongtai Kanglong Vehicle Industry Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-08-30
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses a bicycle suspension fork with a quick spring replacement structure, which comprises a bogie, an outer tube and a foot fork, wherein the inner tube is arranged on two sides of the bogie, the outer tube is sleeved outside the inner tube, the foot fork is connected with the bottom end of the outer tube, a connecting rod is arranged at the bottom end of the inner part of the outer tube, and a chute is arranged on the inner wall of the outer tube; and the outer wall of the bottom end of the inner pipe is provided with a guide block. This bicycle front fork that shocks resistance with spring quick replacement structure, when butt joint the spring body in the inner tube with the top of connecting rod, with spacing stopper and spacing hole spacing connection, and use set screw to run through the screw hole of mount pad and bogie upper surface and carry out spacing butt joint, conveniently change the spring body and install, insert the inner tube in the outer tube, it is spacing that the use tool carries out the joint with the draw-in groove of outer tube inner wall top, the upper end of rotating locking ring and outer tube carries out threaded connection, thereby assemble this bicycle front fork that shocks resistance.

Description

Bicycle suspension fork with spring quick replacement structure

Technical Field

The utility model relates to a bicycle front fork technical field that shocks resistance specifically is a bicycle front fork that shocks resistance with spring quick replacement structure.

Background

The spiral spring in the bicycle shock-absorbing front fork is made into a spiral shape by steel wires with different specifications and thicknesses, and can be compressed after being stressed, so that the front fork has the shock-absorbing function, can absorb the impact on the road surface, and then is restored to the original shape to prepare the next impact. The coil spring can influence the effect of elastic shock absorption through long-time impact buffering, so that the spring needs to be timely replaced when the bicycle shock absorption front fork is maintained.

Along with the development of science and technology, bicycle shock attenuation front fork has brought very big facility to the travelling of bicycle, however present bicycle shock attenuation front fork still has some problems, just for example:

1. the assembly of the bicycle shock-absorbing front fork is troublesome;

2. the spring of the bicycle shock-absorbing front fork is difficult to be replaced quickly;

therefore, improvements are made to the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bicycle suspension fork with spring quick replacement structure to the bicycle suspension fork equipment that the solution above-mentioned background art provided is comparatively troublesome, and the spring of bicycle suspension fork is difficult to carry out quick replacement's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a bicycle shock-absorbing front fork with a spring quick-replacement structure comprises a bogie, an outer tube and a foot fork, wherein inner tubes are installed on two sides of the bogie, the outer portion of each inner tube is sleeved with the corresponding outer tube, the bottom end of each outer tube is connected with the corresponding foot fork, a connecting rod is arranged at the bottom end of the inner portion of each outer tube, and a sliding groove is formed in the inner wall of each outer tube;

the outer wall of the bottom end of the inner pipe is provided with a guide block, a clamping groove is formed in the upper portion of the inner wall of the outer pipe, a clamping spring is in butt joint with the inside of the clamping groove, butt joint holes are formed in the surfaces of two ends of the clamping spring, and the top end of the outer pipe is connected with a locking ring.

Preferably, the chutes are distributed at equal included angles relative to the axial line of the outer tube, the widths of the chutes and the widths of the guide blocks are matched, the guide blocks and the chutes are in sliding connection, and the guide blocks on the outer wall of the inner tube are in butt joint with the chutes on the inner wall of the outer tube, so that the inner tube and the outer tube can be conveniently directionally stretched.

Preferably, the inner wall interval of draw-in groove and the thickness phase-match of jump ring, and jump ring and draw-in groove are the block connection, the top inner wall of outer tube and the lower extreme outer wall of locking ring all are provided with the screw thread, and be threaded connection between locking ring and the outer tube, through with locking ring and outer tube threaded connection, conveniently carry out spacing sealing to the butt joint of outer tube and inner tube.

Preferably, the top of connecting rod is connected with the spring body, the bogie has seted up spacing hole near the top surface of inner tube, and the inside threaded connection in spacing hole has spacing stopper, breaks away from threaded connection through rotatory spacing stopper and spacing hole, conveniently takes out the spring body in the inner tube fast.

Preferably, one side of spacing stopper is fixed with the mount pad, and the middle part through connection of mount pad has set screw, the bogie is close to one side in spacing hole and has seted up the screw hole, and the screw hole is connected with set screw, and the screw hole through using set screw to run through mount pad and bogie upper surface carries out spacing butt joint, can prevent that the installation of spacing stopper is not hard up.

Compared with the prior art, the beneficial effects of the utility model are that: this bicycle front fork that shocks resistance with spring quick replacement structure, when butt joint the spring body in the inner tube with the top of connecting rod, with spacing stopper and spacing hole spacing connection, and use set screw to run through the screw hole of mount pad and bogie upper surface and carry out spacing butt joint, conveniently change the spring body and install, insert the inner tube in the outer tube, it is spacing that the use tool carries out the joint with the draw-in groove of outer tube inner wall top, the upper end of rotating locking ring and outer tube carries out threaded connection, thereby assemble this bicycle front fork that shocks resistance.

1. This bicycle front fork that shocks resistance with spring quick replacement structure, insert the inner tube in the outer tube, make the guide block of inner tube outer wall carry out directional slip along the spout of outer tube inner wall, and use the instrument to peg graft with the butt joint hole at jump ring both ends, when using the instrument to compress tightly the jump ring of "C" style of calligraphy, thereby carry out the joint spacing with the draw-in groove above the outer tube inner wall with the jump ring of "C" style of calligraphy, use glue coating again on the screw thread outer wall of locking ring, and rotate the upper end of locking ring and outer tube and carry out threaded connection, thereby assemble inner tube and outer tube of this bicycle front fork that shocks resistance;

2. this bicycle suspension fork with spring quick replacement structure, the set screw with in the mount pad is unscrewed, make set screw and screw hole break away from the connection, and rotatory spacing stopper breaks away from threaded connection with spacing hole, conveniently take out the spring body in the inner tube fast, otherwise, when butt-jointing the spring body in the inner tube with the top of connecting rod, with spacing stopper and spacing hole spacing connection, and use set screw to run through the screw hole of mount pad and bogie upper surface and carry out spacing butt joint, conveniently carry out quick replacement with the spring body.

Drawings

FIG. 1 is a schematic structural view of a front cross section of the present invention;

fig. 2 is a schematic top view of the outer tube of the present invention;

fig. 3 is a schematic structural view of a top cross-sectional view of the outer tube without the snap spring of the present invention;

FIG. 4 is a right side view structural diagram of the present invention;

fig. 5 is a front cross-sectional view structural schematic diagram of the bogie of the present invention;

fig. 6 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.

In the figure: 1. a bogie; 2. an inner tube; 3. an outer tube; 4. a foot fork; 5. a connecting rod; 6. a chute; 7. a guide block; 8. a card slot; 9. a clamp spring; 10. a butt joint hole; 11. locking a ring; 12. a spring body; 13. a limiting hole; 14. a limiting plug; 15. a mounting seat; 16. a fixing screw; 17. a threaded hole.

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. 1-6, the present invention provides a technical solution: the utility model provides a bicycle suspension fork with spring quick replacement structure, including bogie 1, outer tube 3 and foot fork 4, inner tube 2 is installed to bogie 1's both sides, and outer tube 3 has been cup jointed to the outside of inner tube 2, and the bottom of outer tube 3 is connected with foot fork 4, the inside bottom of outer tube 3 is provided with connecting rod 5, and the inner wall of outer tube 3 has seted up spout 6, the bottom outer wall of inner tube 2 is provided with guide block 7, draw-in groove 8 has been seted up to the inner wall top of outer tube 3, and the inside of draw-in groove 8 has been docked jump ring 9, and butt joint hole 10 has been seted up on the both ends surface of jump ring 9, the top of outer tube 3 is connected with locking ring 11.

The sliding chute 6 is distributed at equal included angles relative to the axial lead of the outer tube 3, the width of the sliding chute 6 is matched with that of the guide block 7, and the guide block 7 is in sliding connection with the sliding chute 6; the inner wall interval of the clamping groove 8 is matched with the thickness of the clamping spring 9, the clamping spring 9 is connected with the clamping groove 8 in a clamping mode, the inner wall of the top end of the outer pipe 3 and the outer wall of the lower end of the locking ring 11 are provided with threads, and the locking ring 11 is connected with the outer pipe 3 in a threaded mode.

Insert inner tube 2 in outer tube 3, make the guide block 7 of 2 outer walls of inner tube carry out directional slip along the spout 6 of 3 inner walls of outer tube, and the butt joint hole 10 at use tool and jump ring 9 both ends is pegged graft, when the jump ring 9 of use tool compress tightly "C" style of calligraphy, thereby it is spacing to carry out the joint with the draw-in groove 8 of 3 inner walls tops of outer tube with the jump ring 9 of "C" style of calligraphy, reuse glue coating is on the screw thread outer wall of locking ring 11 again, and the upper end of rotating locking ring 11 and outer tube 3 carries out threaded connection, thereby assemble inner tube 2 and the outer tube 3 of this bicycle front fork of keeping away, on the contrary, unscrew takes out locking ring 11, and use tool dismantles jump ring 9, the convenience is overhauld the maintenance to this bicycle fork of keeping away.

The top end of the connecting rod 5 is connected with a spring body 12, the surface of the top end of the bogie 1 close to the inner tube 2 is provided with a limiting hole 13, and the inner part of the limiting hole 13 is in threaded connection with a limiting plug 14; a mounting seat 15 is fixed on one side of the limiting plug 14, a fixing screw 16 is connected to the middle of the mounting seat 15 in a penetrating manner, a threaded hole 17 is formed in one side of the bogie 1 close to the limiting hole 13, and the threaded hole 17 is connected with the fixing screw 16.

Unscrew the set screw 16 in the mount pad 15 for set screw 16 and screw hole 17 break away from the connection, and rotatory spacing stopper 14 and spacing hole 13 break away from threaded connection, conveniently take out the spring body 12 in inner tube 2 fast, otherwise, when docking spring body 12 in inner tube 2 with the top of connecting rod 5, with spacing stopper 14 and spacing hole 13 spacing connection, and use set screw 16 to run through mount pad 15 and bogie 1 upper surface's screw hole 17 and carry out spacing butt joint, conveniently change the installation with spring body 12.

In conclusion, when the bicycle suspension fork with the spring quick change structure is used, the inner tube 2 is inserted into the outer tube 3, so that the guide block 7 on the outer wall of the inner tube 2 slides directionally along the slide groove 6 on the inner wall of the outer tube 3, and is inserted into the abutting holes 10 at the two ends of the clamp spring 9 by using a tool, when the clamp spring 9 in the shape of the letter "C" is pressed by using the tool, so that the clamp spring 9 in the shape of the letter "C" is clamped and limited by the clamp groove 8 above the inner wall of the outer tube 3, the outer thread wall of the locking ring 11 is coated by using glue, and the locking ring 11 is rotated to be in threaded connection with the upper end of the outer tube 3, so that the inner tube 2 and the outer tube 3 of the bicycle suspension fork are assembled, the fixing screw 16 penetrates through the mounting seat 15 and the threaded hole 17 to be abutted, so that the limiting plug 14 can be mounted loosely, and after the fork 4 at the bottom end of the outer tube 3 is abutted with the wheel axle, the inner tube 2 is buffered and extended in the outer tube 3 through the spring body 12, so as to facilitate the telescopic shock absorption of the bogie 1, and the content which is not described in detail in the present specification belongs to the prior art which is well known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a bicycle suspension fork with spring quick replacement structure, includes bogie (1), outer tube (3) and foot fork (4), its characterized in that:

the bogie comprises a bogie (1) and is characterized in that inner pipes (2) are mounted on two sides of the bogie (1), outer pipes (3) are sleeved outside the inner pipes (2), foot forks (4) are connected to the bottom ends of the outer pipes (3), connecting rods (5) are arranged at the bottom ends of the inner parts of the outer pipes (3), and sliding grooves (6) are formed in the inner walls of the outer pipes (3);

the bottom outer wall of inner tube (2) is provided with guide block (7), draw-in groove (8) have been seted up to the inner wall top of outer tube (3), and the inside butt joint of draw-in groove (8) has jump ring (9) to butt joint hole (10) have been seted up on the both ends surface of jump ring (9), the top of outer tube (3) is connected with locking ring (11).

2. A bicycle suspension fork with a spring quick change mechanism as in claim 1 wherein: the sliding groove (6) is distributed at equal included angles relative to the axial lead of the outer tube (3), the width of the sliding groove (6) is matched with that of the guide block (7), and the guide block (7) is in sliding connection with the sliding groove (6).

3. The bicycle suspension fork with spring quick change structure as claimed in claim 1, wherein: the inner wall interval of the clamping groove (8) is matched with the thickness of the clamp spring (9), and the clamp spring (9) is connected with the clamping groove (8) in a clamping mode.

4. A bicycle suspension fork with a spring quick change mechanism as in claim 1 wherein: the inner wall of the top end of the outer pipe (3) and the outer wall of the lower end of the locking ring (11) are both provided with threads, and the locking ring (11) is in threaded connection with the outer pipe (3).

5. A bicycle suspension fork with a spring quick change mechanism as in claim 1 wherein: the top of connecting rod (5) is connected with spring body (12), spacing hole (13) have been seted up on bogie (1) near the top surface of inner tube (2), and the inside threaded connection in spacing hole (13) has spacing stopper (14).

6. The bicycle suspension fork with spring quick change structure as claimed in claim 5, wherein: and a mounting seat (15) is fixed on one side of the limiting plug (14), and a fixing screw (16) penetrates through the middle part of the mounting seat (15).

7. A bicycle suspension fork with a spring quick change mechanism as in claim 6 wherein: one side of the bogie (1) close to the limiting hole (13) is provided with a threaded hole (17), and the threaded hole (17) is connected with a fixing screw (16).