CN213354730U

CN213354730U - Front fork of bicycle

Info

Publication number: CN213354730U
Application number: CN202021292629.5U
Authority: CN
Inventors: 李检兵
Original assignee: Suzhou Yongbang Bicycle Co ltd
Current assignee: Suzhou Yongbang Bicycle Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-06-04
Anticipated expiration: 2030-07-04

Abstract

The utility model relates to a bicycle front fork, including the standpipe, the one end of standpipe is provided with coupling assembling, coupling assembling includes connection substrate, connection substrate is last to be provided with the fixed spiro union hole of confession standpipe, connection substrate length direction both sides all are provided with a connecting pipe, two the central axis symmetry along the spliced eye of connecting pipe sets up, the connecting pipe is kept away from connection substrate one side and all is provided with the connecting hole, all can dismantle in the connecting hole and be connected with the front fork wall, the front fork wall is kept away from connecting pipe one side and is provided with the mounting groove that supplies the wheel installation. This application has the effect of guaranteeing the whole life of front fork.

Description

Front fork of bicycle

Technical Field

The application relates to the field of bicycle front forks, in particular to a bicycle front fork.

Background

The current bicycle front fork comprises a vertical tube and a U-shaped fork tube fixed at one end of the vertical tube. Clamping grooves for clamping wheels are arranged at two ends of the U-shaped fork tube.

In view of the above-mentioned related art, the inventor thinks that there is a rear vertical tube and a U-shaped insertion tube fixedly connected after production, and if one of the front vertical tube or the U-shaped insertion tube is damaged, the whole front fork is damaged, and the service life of the front fork is reduced.

SUMMERY OF THE UTILITY MODEL

In order to ensure the practical service life of the front fork, the application provides a front fork of a bicycle.

The application provides a bicycle front fork adopts following technical scheme:

the utility model provides a bicycle front fork, includes the standpipe, the one end of standpipe is provided with coupling assembling, coupling assembling includes connection substrate, connection substrate is last to be provided with the spiro union hole that supplies the standpipe to fix, connection substrate length direction both sides all are provided with a connecting pipe, two the central axis symmetry setting along the spliced eye of connecting pipe, the connecting pipe is kept away from connection substrate one side and all is provided with the connecting hole, all can dismantle in the connecting hole and be connected with the front fork wall, the front fork wall is kept away from connecting pipe one side and is provided with the mounting groove that supplies the wheel installation.

Through adopting above-mentioned technical scheme for the bicycle front fork divide into independent standpipe, connection base plate and front fork wall can dismantle the connection and constitute, thereby makes the damage back of front fork part spare part, and the accessible is changed the damage spare part alone and is guaranteed the whole service function of front fork, thereby has guaranteed the life of front fork.

Preferably, one end of the vertical pipe is provided with a threaded part, a positioning threaded sleeve is screwed on the threaded part, and the threaded part is screwed in the threaded hole.

By adopting the technical scheme, the position of the positioning screw sleeve on the threaded part is adjusted, so that the depth of the vertical pipe in the screw connection hole is adjusted, the integral length of the front fork is adjusted, and the comfort of personnel during use is ensured; meanwhile, the positioning threaded sleeve is abutted against the connecting base plate, so that the vertical pipe is prevented from moving downwards, and the connection stability of the vertical pipe and the connecting base plate is further improved.

Preferably, a limit column with a polygonal cross section is fixed at one end, away from the vertical pipe, of the threaded portion, and a limit component used for limiting rotation of the limit column is arranged on the connecting substrate.

Through adopting above-mentioned technical scheme, spacing subassembly carries on spacingly to spacing post to prevent that the standpipe from rotating in the spiro union hole, thereby guarantee that the standpipe rotation can drive the connection substrate and rotate, and then drive the front fork wall and rotate, thereby guarantee the stability that turns to.

Preferably, the limiting assembly comprises a pair of clamping members symmetrically arranged along the central axis of the screwing hole, a limiting groove for fitting the limiting column is formed in each clamping member, a limiting groove for allowing the clamping members to slide is formed in the connection substrate, and a clamping driving assembly for driving the two clamping members to move in opposite directions is arranged on the connection substrate.

Through adopting above-mentioned technical scheme, it presss from both sides tightly each other to drive two clamping pieces through pressing from both sides tight drive assembly to reach the effect of tight spacing post of quick clamp, and then reach and describe the effect that the maintenance was changed soon to the standpipe.

Preferably, the front fork wall is kept away from mounting groove one end and is fixed with the reference column, reference column cross section size is crescent along mounting groove to reference column direction, the connecting pipe is kept away from connecting substrate one end spiro union and is had the tight apron of spiral shell, be provided with the locating hole that supplies the front fork wall to pass on the tight apron of spiral shell, the cross section size of locating hole is less than the maximum dimension of reference column.

By adopting the technical scheme, the positioning column is inserted into the connecting hole only after the front fork wall passes through the positioning hole, and then the screwing cover plate is screwed on the connecting pipe, so that the positioning column is abutted against the side wall of the positioning hole vehicle, the fixed installation of the front fork wall is achieved, and the effect of quickly installing and replacing the front fork wall is achieved.

Preferably, the side wall of the positioning column is provided with a plurality of positioning blocks, and the side wall of the connecting hole is provided with a plurality of positioning grooves for inserting the positioning blocks.

Through adopting above-mentioned technical scheme for back in the locating piece inserts the constant head tank prevents reference column circumferential direction, and then guarantees the holistic stability of front fork, thereby improves practical life.

Preferably, the number of the positioning blocks is at least three, and the positioning blocks are uniformly arranged along the circumferential direction of the positioning column.

By adopting the technical scheme, after the positioning column is inserted into the connecting hole, the circumferential stress of the positioning column is uniform, so that the stability of the whole structure of the front fork is ensured, and the service life of the front fork is ensured.

Preferably, a buffer spring is abutted between the bottom wall of the connecting hole and the positioning column.

By adopting the technical scheme, the front fork wall is axially subjected to the buffering effect of the buffer spring, so that the front fork wall is prevented from being damaged due to overlarge axial stress, and the practical service life of the front fork is further ensured.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the front fork of the bicycle is formed by detachably connecting an independent vertical tube, a connecting base plate and a front fork wall, so that after parts of the front fork are damaged, the integral use function of the front fork can be ensured by independently replacing the damaged parts, and the service life of the front fork is ensured;

2. the arrangement of the buffer spring has a buffer effect between the front fork wall and the connecting base plate, so that the whole service life of the front fork is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is an exploded structure diagram of the present embodiment.

Fig. 3 is a schematic structural diagram of the connection substrate of the present embodiment.

Description of reference numerals: 1. a vertical tube; 2. connecting the substrates; 3. a front fork wall; 4. mounting grooves; 5. a threaded portion; 6. screwing holes; 7. positioning threaded sleeves; 8. a limiting column; 9. a limiting component; 10. a clamping member; 11. a limiting groove; 12. a stroke slot; 13. a clamp drive assembly; 14. a transmission screw rod; 15. an adjusting disk; 16. a connecting pipe; 17. connecting holes; 18. a positioning column; 19. screwing the cover plate tightly; 20. positioning holes; 21. positioning blocks; 22. positioning a groove; 23. a buffer spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses bicycle front fork. Referring to fig. 1, a bicycle front fork includes a vertically arranged standpipe 1, a connecting base plate 2 and a pair of front fork walls 3. One end of the front fork wall 3 is provided with a mounting groove 4 for mounting a wheel.

Referring to fig. 1, a screw portion 5 is formed at one end of a vertical pipe 1 along a length direction thereof, and a screw hole 6 for screwing the screw portion 5 is formed in a connection substrate 2. Thereby make 1 spiro union of standpipe on screw portion 5, the spiro union has location swivel nut 7 on screw portion 5, through the position of adjustment location swivel nut 7 at screw portion 5 to adjust the degree of depth of 1 spiro union of standpipe in spiro union hole 6, thereby adjust the whole length of front fork, thereby the travelling comfort when guaranteeing personnel to use. Meanwhile, the positioning threaded sleeve 7 is abutted to the connecting base plate 2, so that the vertical pipe 1 is prevented from moving downwards, and the connection stability of the vertical pipe 1 and the connecting base plate 2 is further improved. The standpipe 1 passes through one end of the screw hole 6 and is fixed with a limiting column 8 with a cross section of a regular polygon, and the limiting column 8 is a regular hexagonal column in the embodiment. And a limiting component 9 for clamping a limiting column 8 is arranged on the bottom wall of one side of the connecting substrate 2, which is far away from the positioning threaded sleeve 7.

Referring to fig. 1, spacing subassembly 9 includes a pair of clamping piece 10 that sets up along the 6 center axis symmetries of spiro union hole, all be provided with the spacing groove 11 that supplies the gomphosis of spacing post 8 on the adjacent lateral wall of two clamping piece 10, because spacing post 8 is just multilateral type, when spacing post 8 laminating is in the spacing groove 11 of two clamping piece 10, spacing groove 11 plays the circumference positioning effect to spacing post 8 and prevents that spacing post 8 from rotating, thereby prevented standpipe 1 from rotating, thereby lead to standpipe 1 and connecting substrate 2 not hard up and can't take place the transmission. The connection base plate 2 is provided with a stroke groove 12 for sliding the two clamping members 10, and the stroke groove 12 is provided along the length direction of the connection base plate 2. The connecting base plate 2 is provided with a clamping driving assembly 13 which drives the two clamping pieces 10 to slide along the stroke groove 12. The clamping driving assembly 13 comprises a transmission screw rod 14 which is rotatably connected in the stroke groove 12, and an adjusting disc 15 is fixed at one end of the transmission screw rod 14, which extends out of the stroke groove 12. The threads on the transmission screw rod 14 are symmetrically and oppositely arranged along the central axis of the screw connection hole 6, so that the transmission screw rod 14 rotates around the same direction to enable the two clamping pieces 10 to move oppositely, and adjustment by an operator is facilitated. The adjusting disc 15 is rotated to drive the transmission screw rod 14 to rotate, and then the two clamping screws are driven to clamp or open, so that the quick positioning effect on the limiting column 8 is realized.

Referring to fig. 1, a pair of connection pipes 16 for connecting the front fork wall 3 are disposed on a side wall of the connection substrate 2 on the side of the stroke slot 12, and the two connection pipes 16 are symmetrically disposed along the central axis of the screw hole 6. Thereby make two front fork walls 3 around 1 symmetry settings of standpipe to guarantee that the atress between front fork wall 3 and the standpipe 1 is even, guarantee the holistic stability of front fork. Connecting pipe 16 is kept away from connecting substrate 2 one end and is provided with connecting hole 17, front fork wall 3 is kept away from mounting groove 4 one end and is provided with and is used for pegging graft reference column 18 in connecting hole 17, reference column 18 cross section size is along keeping away from mounting groove 4 direction crescent, it has screw tight apron 19 to keep away from connecting substrate 2 one end spiro union on the connecting pipe 16, be provided with the locating hole 20 that front fork wall 3 passed on the screw tight apron 19, the cross section size of locating hole 20 is less than the maximum dimension of reference column 18 cross section, thereby peg graft in connecting hole 17 behind screw tight apron 19 is passed to front fork wall 3, then pass through screw tight apron 19 with reference column 18 butt in connecting hole 17, prevent that reference column 18 from droing from. At least three positioning blocks 21 are arranged on the side wall of the positioning column 18, the positioning blocks 21 are arranged along the axis direction of the positioning column 18, and the positioning blocks 21 are uniformly distributed along the circumferential direction of the positioning column 18. Be provided with the constant head tank 22 that supplies locating piece 21 to peg graft on the connecting hole 17 inner wall for when the reference column 18 was installed in connecting hole 17 the reference column 18 block is in constant head tank 22, is used for carrying out circumference positioning action to front fork wall 3, prevents reference column 18 at connecting hole 17 internal rotation, thereby guarantees the location between two front fork walls 3 and the support, thereby has guaranteed the accuracy of front fork wall 3 installation angle position. Be provided with between reference column 18 and the connecting hole 17 diapire and contradict and have buffer spring 23, buffer spring 23 makes reference column 18 butt on the tight apron 19 of spiral shell to the fastness of connecting between whole positioning column 18 and the connecting pipe 16 of adding plays the cushioning effect to front fork wall 3 axial atress simultaneously, thereby has guaranteed front fork wall 3's practical life.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A bicycle front fork, characterized in that: including standpipe (1), the one end of standpipe (1) is provided with coupling assembling, coupling assembling includes connecting substrate (2), be provided with on connecting substrate (2) and supply standpipe (1) fixed spiro union hole (6), connecting substrate (2) length direction both sides all are provided with one connecting pipe (16), two the central axis symmetry setting along the spliced eye of connecting pipe (16), connecting substrate (2) one side is kept away from in connecting pipe (16) all is provided with connecting hole (17), all can dismantle in connecting hole (17) and be connected with front fork wall (3), front fork wall (3) are kept away from connecting pipe (16) one side and are provided with mounting groove (4) that supply the wheel installation.

2. A bicycle front fork according to claim 1, wherein: one end of the vertical pipe (1) is provided with a threaded part (5), the threaded part (5) is connected with a positioning threaded sleeve (7) in a threaded mode, and the threaded part (5) is connected in a threaded connection hole (6) in a threaded mode.

3. A bicycle front fork according to claim 2, wherein: one end, far away from the vertical pipe (1), of the threaded portion (5) is fixed with a limiting column (8) with a polygonal cross section, and a limiting assembly (9) used for limiting the rotation of the limiting column (8) is arranged on the connecting base plate (2).

4. A bicycle front fork according to claim 3, wherein: spacing subassembly (9) are including a pair of clamping piece (10) along spiro union hole (6) center axis symmetry setting, clamping piece (10) are provided with spacing groove (11) that supply spacing post (8) to laminate, be provided with on connection substrate (2) and supply gliding spacing groove (11) of clamping piece (10), be provided with the tight drive assembly (13) of clamp that drives two clamping piece (10) motion in opposite directions on connection substrate (2).

5. A bicycle front fork according to claim 1, wherein: front fork wall (3) are kept away from mounting groove (4) one end and are fixed with reference column (18), reference column (18) cross sectional dimension is crescent along mounting groove (4) to reference column (18) direction, connecting pipe (16) are kept away from connecting substrate (2) one end spiro union and are had tight apron of spiral shell (19), be provided with locating hole (20) that supply front fork wall (3) to pass on the tight apron of spiral shell (19), the cross sectional dimension of locating hole (20) is less than the maximum dimension of reference column (18).

6. A bicycle front fork according to claim 5, wherein: the side wall of the positioning column (18) is provided with a plurality of positioning blocks (21), and the side wall of the connecting hole (17) is provided with positioning grooves (22) in which the positioning blocks (21) are inserted.

7. A bicycle front fork according to claim 6, wherein: the number of the positioning blocks (21) is at least three, and the positioning blocks are uniformly arranged along the circumferential direction of the positioning column (18).

8. A bicycle front fork according to claim 5, wherein: and a buffer spring (23) is abutted between the bottom wall of the connecting hole (17) and the positioning column (18).