CN213414123U

CN213414123U - Lightweight shock attenuation bicycle frame

Info

Publication number: CN213414123U
Application number: CN202021717297.0U
Authority: CN
Inventors: 刘义强
Original assignee: Tianjin Shengfangtai Technology Co ltd
Current assignee: Tianjin Shengfangtai Technology Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-06-11
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a lightweight shock attenuation bicycle frame relates to bicycle frame technical field, including the front fork sleeve that roof beam and one end are connected, be provided with damper in the bicycle frame main part, damper includes the screw shaft, and the one end of screw shaft runs through into in the rectangle cavity and is fixed through the nut, and the other end of screw shaft runs through out the slope of rectangle cavity and extends down and run through the logical groove that the baffle middle part was seted up, one side of baffle welds in the peripheral part of rotatory section of thick bamboo, and the screw shaft keeps away from the one end of rectangle cavity and rotate through rotating the end that corresponds of piece and rear axle fork frame and be connected, baffle and L beam portion have still contradicted damping spring between opposite face. This application realizes dual shock attenuation purpose through a damper, reduces the quantity of installing the bumper shock absorber additional on bicycle frame main part as far as, reduces the weight of whole bicycle frame main part to realize lightweight production purpose.

Description

Lightweight shock attenuation bicycle frame

Technical Field

The utility model relates to a bicycle frame technical field specifically is a lightweight shock attenuation bicycle frame.

Background

The frame of bicycle is generally including the front fork sleeve that is used for installing the front fork, a saddle sleeve pipe for installing the saddle for install centraxonial well axle sleeve pipe, connect through the upper beam between front fork sleeve and the saddle sleeve pipe, connect through the sloping between well axle sleeve pipe and the front fork sleeve pipe, and through founding the roof beam connection between saddle sleeve pipe and the well axle sleeve pipe, still establish the rear axle crotch that is used for installing the rear wheel in addition, rear axle fork frame one end is used for installing the rear axle, the other end and well axle sleeve pipe fixed connection.

The shock attenuation bicycle adopts among the prior art's multiple modes such as saddle pipe shock attenuation, front fork shock attenuation realize the buffering shock attenuation that the road surface jolted, and the saddle pipe shock attenuation is aimed at the frame position of cushion below and carries out the shock attenuation, but the saddle pipe shock attenuation is not good to rear axle fork frame department from the feedback buffering effect of rear wheel vibrations, if install the bumper shock absorber additional and probably can cause the whole weight of frame to increase, can not reach lightweight effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light-weighted shock attenuation bicycle frame to solve the problem that proposes among the above-mentioned background art.

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

a light damping bicycle frame comprises an upper beam and a front fork sleeve connected with one end of the upper beam, wherein the other end of the upper beam is forked to form an L-shaped beam part, the upper end of the L-shaped beam part is connected with a saddle sleeve, the lower end of the L-shaped beam part is rotatably connected with one end of a rear shaft fork through a rotating shaft to form a bicycle frame main body, a damping mechanism is arranged on the bicycle frame main body and comprises a rectangular cavity with a hollowed-out structure, the middle of the upper side of the L-shaped beam part is provided with a through hole for a screw shaft to penetrate through, one end of the screw shaft penetrates into the rectangular cavity and is fixed through a nut, the other end of the screw shaft penetrates through the rectangular cavity, extends downwards in an inclined manner and penetrates through a through groove formed in the middle of a baffle plate, one side of the baffle plate is welded on the peripheral part of a rotating cylinder, and the end, far away from the, still contradict damping spring between baffle and the relative face of L-shaped beam portion, and damping spring locates on the screw shaft that corresponds in the cluster, the both ends of rotatory section of thick bamboo are rotated and are connected in the locating piece opposite face that corresponds, and two locating pieces pass through installed part fixed connection in one side of rear axle crotch.

As a further aspect of the present invention: one end of the screw shaft, which is far away from the rectangular cavity, is integrally formed into an extension end with a smooth outer peripheral surface, the end part of the extension end is welded in the middle of the outer peripheral surface of the rotating pin, and the rotating pin is rotatably connected in a hole formed in the top of the rear shaft fork frame.

As a further aspect of the present invention: the baffle is arranged in parallel with the axis of the rotary cylinder.

As a further aspect of the present invention: two waist-shaped holes which are symmetrically arranged in parallel are formed in the positioning sheet.

As a further aspect of the present invention: the installed part is including the afterbody that is used for cliping the head of two spacer and is used for with rear axle fork frame welded, and the head both sides are connected with the spacer through the bolt.

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

1. the utility model discloses when the driving frame main part receives the shake, come from the jolt vibrations that saddle sleeve pipe and front fork sleeve received and transmit to the upper beam after, the upper beam transmits to L-shaped beam portion and makes the screw shaft have the trend that moves down, damping spring receives extrusion buffering most vibrations this moment, meanwhile, damping spring receives the compression in the time, can apply pressure and use on the baffle, and make rotatory section of thick bamboo have anticlockwise rotation's trend, and can push up the trend that moves up screw shaft when rear axle crotch receives the shake, and can make rotatory section of thick bamboo have clockwise pivoted trend, thereby realize dual shock attenuation purpose through a damper, reduce the quantity of installing the bumper shock absorber additional in the bicycle frame main part as far as possible, reduce the weight of whole bicycle frame main part, thereby realize lightweight production purpose.

2. The utility model discloses a convenient to detach's purpose to make things convenient for regularly to overhaul damping mechanism and maintain or change, improve the practicality, through damping spring and the mounting means between the screw rod axle, can regularly pull down damping spring like this and wash, avoid debris such as earth to block up into damping spring.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the damping mechanism of the present invention;

fig. 3 is an enlarged view of a structure in fig. 1.

In the figure: 1. an upper beam; 2. an L-shaped beam portion; 3. a saddle bushing; 4. a rear axle yoke; 5. a front fork sleeve; 6. a mounting member; 7. a damping spring; 8. a screw shaft; 9. positioning plates; 10. a kidney-shaped hole; 11. an extension end; 12. a rotation pin; 13. a baffle plate; 14. a rotary drum; 15. a rectangular cavity.

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.

Please refer to fig. 1-3, in the embodiment of the present invention, a light damping bicycle frame, includes a front fork sleeve 5 connected to a top beam 1 and one end thereof, and the other end of the top beam 1 is diverged to form an L-shaped beam portion 2, the upper end of the L-shaped beam portion 2 is connected to a saddle sleeve 3, and the lower end of the L-shaped beam portion 2 is rotated through a rotation shaft to connect one end of a rear axle fork 4, and the bicycle frame main body is formed by the above structure, and is the prior art, and the technical characteristics of the present scheme are added on the basis of the prior art as follows:

the bicycle frame body is provided with a damping mechanism, the damping mechanism comprises an L-shaped beam part 2, the middle part of the upper side of the L-shaped beam part 2 is provided with a rectangular cavity 15 in a hollow structure, the middle part of the lower side of the rectangular cavity 15 is provided with a through hole for a screw shaft 8 to penetrate through, one end of the screw shaft 8 penetrates into the rectangular cavity 15 and is fixed through a nut, the other end of the screw shaft 8 penetrates through the rectangular cavity 15 and obliquely extends downwards and penetrates through a through groove arranged in the middle of a baffle 13, one side of the baffle 13 is welded on the peripheral part of a rotary barrel 14, one end of the screw shaft 8 far away from the rectangular cavity 15 is rotatably connected with the corresponding end of a rear shaft fork 4 through a rotating piece, a damping spring 7 is also abutted between the opposite surfaces of the baffle 13 and the L-shaped beam part 2, the damping spring 7 is arranged on the corresponding screw shaft 8 in, the two positioning pieces 9 are fixedly connected to one side of the rear axle fork frame 4 through the mounting piece 6, and through the mounting mode between the damping spring 7 and the screw shaft 8, the damping spring 7 can be periodically detached for cleaning, so that sundries such as soil are prevented from being blocked in the damping spring 7, when a bicycle frame body is shaken, bumping vibration received by the saddle sleeve 3 and the front fork sleeve 5 is transmitted to the upper beam 1, the upper beam 1 is transmitted to the L-shaped beam part 2 to enable the screw shaft 8 to move downwards, at the moment, the damping spring 7 is extruded to buffer most of vibration, meanwhile, the damping spring 7 is compressed, and applies pressure to the baffle 13 to enable the rotary cylinder 14 to have a tendency of anticlockwise rotation, and when the rear axle fork frame 4 is shaken, the screw shaft 8 is pushed to move upwards, the rotary cylinder 14 can have a tendency of clockwise rotation, so that dual damping purposes are realized through one damping mechanism, the number of shock absorbers added to the bicycle frame main body is reduced as much as possible, and the weight of the whole bicycle frame main body is reduced, so that the light-weight production purpose is realized.

Further, one end of the screw shaft 8, which is far away from the rectangular cavity 15, is integrally formed into an extension end 11 with a smooth outer peripheral surface, the end of the extension end 11 is welded to the middle of the outer peripheral surface of the rotating pin 12, and the rotating pin 12 is rotatably connected to a hole formed in the top of the rear axle fork 4.

Further, the baffle 13 is arranged parallel to the axis of the rotary cylinder 14, and the purpose is that after the baffle 13 is stressed, the rotary cylinder 14 can be caused to have a tendency of rotating along the axial direction of the rotary cylinder, so that the energy absorption and buffering effects can be realized by means of the damping spring 7.

Furthermore, two waist-shaped holes 10 which are symmetrically arranged in parallel are formed in the positioning plate 9, so that the mounting part 6 can be conveniently connected to the positioning plate 9 through bolts.

Further, installed part 6 including be used for cliping the head of two spacers 9 and be used for with rear axle fork 4 welded afterbody, the head both sides are passed through the bolt and are connected with spacers 9, realize convenient to detach's purpose to make things convenient for regularly to overhaul damping mechanism and maintain or change, improve the practicality.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a light-weighted shock attenuation bicycle frame, includes front fork sleeve (5) that roof beam (1) and one end are connected, and the other end of roof beam (1) is opened and is formed L shape roof beam portion (2), the upper end of L shape roof beam portion (2) is connected with saddle sleeve pipe (3), and the lower extreme of L shape roof beam portion (2) rotates the one end of connecting rear axle crotch (4) through the pivot, in order to constitute bicycle frame main part, characterized in that, be provided with damper in the bicycle frame main part, damper includes that the upside middle part of L shape roof beam portion (2) is seted up rectangular cavity (15) that is hollow structure, the downside middle part of rectangular cavity (15) is seted up the through-hole that supplies screw shaft (8) to run through, the one end of screw shaft (8) is passed through in rectangular cavity (15) and is fixed through the nut, and the other end that screw shaft worn out rectangular cavity (15) slope and extend down and run through the logical groove that baffle (, one side of baffle (13) welds in the peripheral part of a rotatory section of thick bamboo (14), and screw shaft (8) keep away from the one end of rectangle cavity (15) and rotate through the corresponding end that rotates piece and rear axle crotch (4) and be connected, still contradict between baffle (13) and L shape roof beam portion (2) opposite face and have damping spring (7), and damping spring (7) cluster locate on corresponding screw shaft (8), the both ends of a rotatory section of thick bamboo (14) are rotated and are connected in spacer (9) opposite face that corresponds, and one side in rear axle crotch (4) is passed through installed part (6) fixed connection in two spacers (9).

2. The light-weight bicycle shock-absorbing frame as claimed in claim 1, wherein the end of the screw shaft (8) away from the rectangular cavity (15) is integrally formed as an extension end (11) with a smooth outer peripheral surface, the end of the extension end (11) is welded to the middle of the outer peripheral surface of the rotation pin (12), and the rotation pin (12) is rotatably connected to a hole formed at the top of the rear axle fork (4).

3. A light-weight, shock-absorbing bicycle frame as claimed in claim 1, characterised in that the baffles (13) are arranged parallel to the axis of the rotary drum (14).

4. The light-weight shock-absorbing bicycle frame as claimed in claim 1, wherein the positioning plate (9) is provided with two waist-shaped holes (10) which are symmetrically arranged in parallel.

5. A light-weight, shock-absorbing bicycle frame as claimed in claim 1, characterised in that the mounting member (6) comprises a head portion for clamping two spacers (9) and a tail portion for welding with the rear axle fork (4), the head portion being connected on both sides with the spacers (9) by means of bolts.