CN211417510U

CN211417510U - Bicycle frame

Info

Publication number: CN211417510U
Application number: CN202020048623.7U
Authority: CN
Inventors: 高仕敬; 高温晶; 梁俊龙
Original assignee: Weiteli Titanium Alloy Technology Xiamen Co ltd
Current assignee: Weiteli Titanium Alloy Technology Xiamen Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-04
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a bicycle frame relates to bicycle frame technical field. The technical key points are as follows: including last fork, lower fork and bumper shock absorber, the one end of bumper shock absorber with the lower fork is articulated, and the other end passes through the connecting piece and articulates with last fork, the both ends of bumper shock absorber all are provided with the adapter sleeve, all be provided with on connecting piece and the lower fork and peg graft in corresponding connecting rod in the adapter sleeve, the one end outside of connecting rod is provided with the lock sleeve, the outside of connecting rod is encircleed and is provided with a plurality of holding holes, be provided with the correspondence on the lock sleeve the joint hole in holding hole, the downthehole spring catch that passes the joint hole that is provided with of holding, the utility model has the advantages of sound construction.

Description

Bicycle frame

Technical Field

The utility model relates to a bicycle frame technical field, more specifically says, it relates to a bicycle frame.

Background

Bicycles have been integrated into people's lives as transportation means, and various bicycles with special purposes, which are improved on the basis of bicycles, are gradually introduced into our lives as the life style of people changes, such as mountain bikes for body building, variable speed bikes for increasing the speed, and the like.

The Chinese utility model with publication number CN201849580U discloses a bicycle shock-absorbing frame, which comprises a head tube, an upper tube, a lower tube, a middle tube, an upper fork, a lower fork and a shock absorber, and also comprises a shock absorber seat, wherein one end of the shock absorber seat is connected with one end of the lower fork, the other end of the shock absorber seat is fixed with one end of the shock absorber, and the middle part of the shock absorber seat is hinged with the lower part of the middle tube; the other end of the shock absorber is connected with one end of the upper fork through a connecting piece; the head tube, the upper tube, the lower tube and the middle tube form a front frame, and the upper fork, the lower fork, the shock absorber seat, the shock absorber and the connecting piece form a rear frame; the front frame and the rear frame are fixed through two connecting points, one connecting point is a hinged point of the middle part of the shock absorber seat and the lower part of the middle pipe, and the other connecting point is a hinged point of the connecting piece and a fixing piece fixed at the middle part of the middle pipe.

Similar to the shock-absorbing bicycle frame in the prior art, the shock absorber and the bicycle frame are generally connected through screws, when the bicycle is used for a period of time, the screws are easy to loosen, and the screws fall off in the riding process of people to cause dangerous situations, so that a space needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bicycle frame, it has sound construction's advantage.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a bicycle frame, includes fork, lower fork and bumper shock absorber, the one end of bumper shock absorber with the lower fork is articulated, and the other end passes through the connecting piece and is articulated with the upper fork, the both ends of bumper shock absorber all are provided with the adapter sleeve, all be provided with on connecting piece and the lower fork peg graft in corresponding connecting rod in the adapter sleeve, the one end outside of connecting rod is provided with the lock sleeve, the outside of connecting rod is encircleed and is provided with a plurality of holding holes, be provided with on the lock sleeve and correspond the joint hole in holding hole, the downthehole spring catch that passes the joint hole that is provided with of holding.

By adopting the technical scheme, when the shock absorber is installed, the connecting sleeve is installed on the connecting rod firstly, then the spring pin is pressed into the accommodating hole, the locking sleeve is sleeved on the connecting rod, and after the spring pin is restored to the original state and is clamped with the clamping hole, the shock absorber is installed; when the shock absorber needs to be dismounted, the spring pin is firstly pressed into the accommodating hole, and then the locking sleeve is taken down from the connecting rod, so that the shock absorber can be dismounted.

To sum up, for adopting the screw to connect bumper shock absorber and bicycle frame, the aforesaid is installed the bumper shock absorber through connecting rod and lock sleeve, can avoid the bicycle in the in-process that traveles the condition that the bumper shock absorber drops to appear, and the spring catch has a plurality of, still can make the lock sleeve installation firm under the condition that one of them spring catch damages.

Furthermore, be provided with the cross-section on the lateral wall of connecting rod and be L shape and one side extends to its joint groove that is close to the lock sleeve one end surface, the lock sleeve inner wall be provided with rotate the joint in the joint piece in the joint inslot.

Through adopting above-mentioned technical scheme, when the installation lock sleeve, slide in along joint groove opening part earlier the joint piece to make joint piece joint in the joint inslot, and spring catch and joint hole looks joint, can accomplish the installation of lock sleeve, by the joint cooperation in joint piece and joint groove, can make the lock sleeve firmly overlap on the connecting rod, can avoid the spring catch to damage the back, the lock sleeve breaks away from the connecting rod.

Furthermore, a side face, perpendicular to the axis of the connecting rod, of the clamping groove is provided with an elastic bulge, and a groove which is embedded with the elastic bulge is formed in the clamping block.

Through adopting above-mentioned technical scheme, pack into the joint groove at the joint piece after, through the gomphosis of elastic bulge and recess, can prevent that the lock sleeve from rotating, avoid the lock sleeve to rotate the back and break away from the connecting rod.

Furthermore, the elastic bulges are a plurality of and arranged along the length direction of the vertical surface of the clamping groove and the axis of the connecting rod.

Through adopting above-mentioned technical scheme, the bellied setting of a plurality of elasticity effectively makes the lock sleeve firm with the connecting rod installation.

Furthermore, one end of the outer side wall of the connecting rod, which is close to the locking sleeve, is provided with an annular abutting groove, and the locking sleeve is provided with a plurality of elastic abutting sheets which abut against the abutting groove.

Through adopting above-mentioned technical scheme, after a plurality of spring catch all damaged, support by elasticity and support tight piece and support tight groove, can further avoid the lock sleeve to break away from the connecting rod.

Furthermore, the cross section of the abutting groove is in the shape of a right triangle, and the side with the higher hypotenuse faces the locking sleeve.

Through adopting above-mentioned technical scheme, the cross-section of supporting tight groove is right triangle and sets up, can be so that when installing the lock sleeve on the connecting rod, can directly install the lock sleeve on the connecting rod under the transition effect on the inclined plane of elasticity support tight piece, avoid taking place to block the condition, and support tight piece and support tight groove's laminating down at elasticity, support the right-angle side in tight groove and can further avoid the lock sleeve to break away from.

Furthermore, balls are arranged between the connecting piece, the lower fork and the corresponding connecting sleeve and between the locking sleeve and the connecting sleeve.

Through adopting above-mentioned technical scheme, after having installed the bumper shock absorber, can reduce the bumper shock absorber and produce frictional force with the bicycle frame in the course of the work through the ball to optimize the working effect of bumper shock absorber.

Furthermore, the opening edge of one end of the locking sleeve, which is close to the connecting sleeve, is chamfered.

Through adopting above-mentioned technical scheme, when the installation lock sleeve, the one end inward flange chamfer setting that is close to the adapter sleeve through the lock sleeve can make the spring catch remove to the holding hole along the slope of lock sleeve, avoids pressing the spring catch when the installation lock sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the shock absorber is installed through the connecting rod and the locking sleeve, the shock absorber can be prevented from falling off the bicycle in the running process of the bicycle, and the locking sleeve can be firmly installed under the condition that one spring pin is damaged;

(2) the clamping block and the clamping groove are arranged, so that the locking sleeve can be firmly sleeved on the connecting rod, and the locking sleeve can be prevented from being separated from the connecting rod after the spring pin is damaged;

(3) through setting up elasticity and supporting tight piece and supporting tight groove, support by elasticity support tight piece and support tight groove, can further avoid the lock sleeve to break away from the connecting rod.

Drawings

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

FIG. 2 is a schematic sectional view of the present embodiment;

fig. 3 is an overall schematic view of the protruding clamping block and the elastic protrusion of the present embodiment.

Reference numerals: 1. a pipe head; 2. feeding a pipe; 3. a lower pipe; 4. a middle tube; 5. an upper fork; 6. a lower fork; 7. connecting sleeves; 8. a connecting member; 9. a shock absorber; 10. a connecting rod; 11. a locking sleeve; 12. a housing hole; 13. a spring pin; 14. a clamping hole; 15. abutting against the groove; 16. an elastic abutting sheet; 17. a ball bearing; 18. a clamping groove; 19. a clamping block; 20. an elastic bulge; 21. and (4) a groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A bicycle frame is shown in figure 1 and comprises a tube head 1, an upper tube 2, a lower tube 3, a middle tube 4, an upper fork 5, a lower fork 6, a connecting piece 8 and a shock absorber 9, wherein the tube head 1, the upper tube 2, the lower tube 3 and the middle tube 4 form a bicycle front frame, the upper fork 5, the lower fork 6, the connecting piece 8 and the shock absorber 9 form a bicycle rear frame, and connecting sleeves 7 are fixed at two ends of the shock absorber 9.

As shown in fig. 2, the connecting rod 10 inserted into the corresponding connecting sleeve 7 extends from the connecting member 8 and the lower fork 6, the locking sleeve 11 is sleeved outside one end of the connecting rod 10, the outer side of the connecting rod 10 is provided with a plurality of accommodating holes 12 in a surrounding manner, the locking sleeve 11 is provided with a clamping hole 14 corresponding to the accommodating hole 12, and the accommodating hole 12 is internally provided with a spring pin 13 penetrating through the clamping hole 14.

As shown in fig. 2, an annular abutting groove 15 is formed in one end of the outer side wall of the connecting rod 10 close to the locking sleeve 11, a plurality of elastic abutting pieces 16 abutting against the abutting groove 15 are fixed on the locking sleeve 11, and the elastic abutting pieces 16 abut against the abutting groove 15, so that the locking sleeve 11 can be further prevented from being separated from the connecting rod 10.

Further, the cross-section of abutting groove 15 is right triangle, and the higher one side of its hypotenuse is towards lock sleeve 11 for when installing lock sleeve 11 on connecting rod 10, can directly install lock sleeve 11 on connecting rod 10 under the transition effect on the inclined plane of elasticity abutting sheet 16, avoid taking place to block the condition, and under elasticity abutting sheet 16 and the laminating of abutting groove 15, the right-angle side of abutting groove 15 can further avoid lock sleeve 11 to break away from.

As shown in fig. 2, in order to reduce the friction force generated between the connecting sleeve 7 and the bicycle frame during the operation process, and thus optimize the working effect of the shock absorber 9, balls 17 are disposed between the connecting member 8, the lower fork 6 and the corresponding connecting sleeve 7, and between the corresponding locking sleeve 11 and the connecting sleeve 7.

It is worth mentioning that the opening edge of the locking sleeve 11 close to one end of the connecting sleeve 7 is chamfered. Therefore, when the locking sleeve 11 is installed, the inner edge of one end of the locking sleeve 11 close to the connecting sleeve 7 is chamfered, so that the spring pin 13 moves towards the containing hole 12 along the inclined surface of the locking sleeve 11, and the spring pin 13 is prevented from being pressed when the locking sleeve 11 is installed.

As shown in fig. 3, a clamping groove 18 having an L-shaped cross section and extending from one side to a surface of the locking sleeve 11 near one end is formed on the side wall of the connecting rod 10, and a clamping block 19 rotatably clamped in the clamping groove 18 is fixed on the inner wall of the locking sleeve 11. Therefore, when the locking sleeve 11 is installed, the clamping block 19 slides in along the opening of the clamping groove 18, the clamping block 19 is clamped in the clamping groove 18, the spring pin 13 is clamped with the clamping hole 14, the locking sleeve 11 can be installed, the locking sleeve 11 can be firmly sleeved on the connecting rod 10 through the clamping cooperation of the clamping block 19 and the clamping groove 18, and the locking sleeve 11 can be prevented from being separated from the connecting rod 10 after the spring pin 13 is damaged.

Furthermore, in order to prevent the rotation of the locking sleeve 11 and prevent the locking sleeve 11 from separating from the connecting rod 10 after rotating, an elastic protrusion 20 is fixed on a side surface perpendicular to the axis of the connecting rod 10 in the clamping groove 18 in the embodiment, and a groove 21 embedded with the elastic protrusion 20 is formed on the clamping block 19.

It is worth mentioning that, in order to make the lock sleeve 11 and the connecting rod 10 install firmly, the elastic bulge 20 is a plurality of in this embodiment, and a plurality of elastic bulge 20 is arranged along the length direction of the perpendicular one side of joint groove 18 and connecting rod 10 axis.

The utility model discloses a working process and beneficial effect as follows: when the shock absorber 9 is installed, the connecting sleeve 7 is installed on the connecting rod 10, then the spring pin 13 is pressed into the accommodating hole 12, then the locking sleeve 11 is sleeved on the connecting rod 10, and after the spring pin 13 is restored to the original state and clamped with the clamping hole 14, the shock absorber 9 is installed; when the shock absorber 9 needs to be detached, the spring pin 13 is firstly pressed into the accommodating hole 12, and then the locking sleeve 11 is taken down from the connecting rod 10, so that the shock absorber 9 can be detached.

In summary, compared with the case that the shock absorber 9 and the bicycle frame are connected by screws, the shock absorber 9 is installed by the connecting rod 10 and the locking sleeve 11, so that the situation that the shock absorber 9 falls off in the running process of the bicycle can be avoided, and the number of the spring pins 13 is multiple, so that the locking sleeve 11 can be firmly installed under the situation that one spring pin 13 is damaged.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a bicycle frame, includes fork (5), fork (6) and bumper shock absorber (9) down, the one end of bumper shock absorber (9) with fork (6) are articulated down, and the other end is articulated with fork (5) through connecting piece (8), its characterized in that: the both ends of bumper shock absorber (9) all are provided with adapter sleeve (7), all be provided with on connecting piece (8) and lower fork (6) peg graft in corresponding connecting rod (10) in adapter sleeve (7), the one end outside of connecting rod (10) is provided with lock sleeve (11), the outside of connecting rod (10) is encircleed and is provided with a plurality of holding holes (12), be provided with on lock sleeve (11) and correspond joint hole (14) of holding hole (12), be provided with spring catch (13) that pass joint hole (14) in holding hole (12).

2. A bicycle frame as defined in claim 1, wherein: be provided with on the lateral wall of connecting rod (10) and take the shape of L and one side extends to its joint groove (18) that is close to lock sleeve (11) one end surface, lock sleeve (11) inner wall be provided with rotate the joint in joint piece (19) in joint groove (18).

3. A bicycle frame as defined in claim 2, wherein: the side face, perpendicular to the axis of the connecting rod (10), of the clamping groove (18) is provided with an elastic bulge (20), and the clamping block (19) is provided with a groove (21) which is embedded with the elastic bulge (20).

4. A bicycle frame as defined in claim 3, wherein: the elastic bulges (20) are a plurality of, and the elastic bulges (20) are arranged along the length direction of the vertical surface of the axis of the clamping groove (18) and the connecting rod (10).

5. A bicycle frame as defined in claim 1, wherein: one end of the outer side wall of the connecting rod (10) close to the locking sleeve (11) is provided with an annular abutting groove (15), and the locking sleeve (11) is provided with a plurality of elastic abutting sheets (16) abutting against the abutting groove (15).

6. A bicycle frame as defined in claim 5, wherein: the section of the abutting groove (15) is in a right-angled triangle shape, and the side with the higher hypotenuse faces the locking sleeve (11).

7. A bicycle frame as defined in claim 1, wherein: the connecting piece (8), the lower fork (6) and the corresponding connecting sleeve (7) and the locking sleeve (11) and the connecting sleeve (7) are provided with balls (17).

8. A bicycle frame as defined in claim 1, wherein: the opening edge of one end of the locking sleeve (11) close to the connecting sleeve (7) is chamfered.