CN216834107U

CN216834107U - Carbon fiber bicycle frame with shock-absorbing structure

Info

Publication number: CN216834107U
Application number: CN202123113044.XU
Authority: CN
Inventors: 刁佛新
Original assignee: Taicang Dongcheng Plastic Co ltd
Current assignee: Taicang Dongcheng Plastic Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-06-28
Anticipated expiration: 2031-12-13

Abstract

The utility model relates to the technical field of bicycle components, in particular to a carbon fiber bicycle frame with a damping structure, which comprises a frame beam, wherein the frame beam consists of a main beam, an auxiliary beam, a seat post and a shaft tube, the shaft tube is respectively and fixedly connected with one ends of the main beam and the auxiliary beam, the other ends of the main beam and the auxiliary beam are fixedly connected with the seat post, the lower end of the seat post is movably connected with one end of a rear chain stay through a positioning shaft, the other end of the rear chain stay is movably connected with a transmission rod, the transmission rod of the improved carbon fiber bicycle frame can rotate by taking a connecting shaft as a circle center and can form a lever structure by taking the connecting shaft as a fulcrum, the damping component can provide elastic supporting effect for the left end of the transmission rod, indirectly carry out elastic reset operation on the rear chain stay, and realize damping effect on the transmission rod by utilizing the matching between an air damping rod and a power spring, and the guide rod can provide a guide function for the contraction direction of the power spring.

Description

Carbon fiber bicycle frame with shock-absorbing structure

Technical Field

The utility model relates to a bicycle subassembly technical field specifically is a carbon fiber bicycle frame with shock-absorbing structure.

Background

The frame is used as the framework of the whole bicycle, the correctness and the comfort of the riding posture are determined and influenced to the greatest extent, the frame material is selected from the earliest chromium molybdenum steel, aluminum alloy, composite material application such as carbon fiber, scandium alloy, magnesium alloy, titanium alloy and the like, the frame also needs to consider the tensile strength, the elastic coefficient and the like besides the weight, and the materials which can be used for manufacturing the bicycle frame at present mainly comprise the following materials: the carbon fiber pipe is formed by weaving a filament fiber line into carbon fiber cloth, then forming layers of pipes layer by layer, and then processing and lapping, the carbon fiber is a composite material, the carbon fiber is woven into cloth, the cloth is formed into prepreg cloth through the process of resin prepreg, the prepreg cloth is cut and then laminated and merged into a mode for heating and forming, and the vehicle frames with various shapes can be manufactured according to requirements.

The prior patent (publication number: CN214296302U) discloses a carbon fiber bicycle frame structure with good shock absorption performance, one end of an upper tube is fixedly connected to one side wall of a front fork sleeve, the other end of the upper tube is fixedly connected with a seat tube sleeve with a cavity at the top, a saddle is fixedly sleeved in the seat tube sleeve, a bicycle cushion is fixedly connected to the top of the saddle, a bulge is arranged at one end of the seat cushion and can be well matched with the hip of a user, so that the running experience of the user is improved, the sitting posture fatigue caused by long-term driving is avoided, a flexible material is arranged in the seat cushion and positioned at the position of the inner top wall of the bulge, the flexible material can be sponge, the jolt of the user in the driving process is reduced, the shake of the bicycle body is absorbed, the safety of a walker is improved, a plurality of buffer springs are further arranged in the seat cushion, the shake amplitude of the seat cushion can be reduced, and better use experience is brought to the user. The inventor finds that the prior art has the following problems in the process of realizing the utility model: 1. the existing bicycle frame has a simple external structure, generally adopts an integrated frame structure, and has no damping and buffering capacity in the use process, so that the traffic capacity of the bicycle in the riding process is greatly influenced; 2. the cushioning structure of general bicycle all realizes elasticity shock attenuation operation with spring structure, and the reverse effort direct action of its spring wheel hub, and the shock-absorbing capacity of two front and back wheel hubs can't directly transmit to the frame, can not well satisfy people's user demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a carbon fiber bicycle frame with shock-absorbing structure 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: the utility model provides a carbon fiber bicycle frame with shock-absorbing structure, includes the frame roof beam, the frame roof beam comprises girder, auxiliary girder, sit pole and central siphon, the central siphon respectively with the one end fixed connection of girder and auxiliary girder, and the other end of girder and auxiliary girder all with sit pole fixed connection, the lower extreme of sitting the pole is through the one end swing joint of location axle and back chain stay, and swing joint between the other end of back chain stay and the transmission pole, the lower extreme of transmission pole is connected with the middle part of sitting the pole through linking up the axle, it is articulated between the other end of transmission pole and damper's the upper end, it is articulated between damper's the lower extreme and the auxiliary girder.

Further preferably, the main beam, the auxiliary beam and the seat rod are of an integrated structure, and the main beam, the auxiliary beam and the seat rod are distributed in a triangular shape.

Further preferably, the rear bottom fork forms a rotating structure through a positioning shaft.

Further preferably, the transmission rod is of a bent structure, and a link is used for transmission between the transmission rod and the rear fork.

Further preferably, the shock absorption assembly comprises an air damping rod, a power spring is attached to the lower portion of the air damping rod, the guide rod penetrates through the power spring and is fixedly connected with the lower end of the air damping rod, and a limiting ring in threaded connection with the guide rod is attached to the lower end of the power spring.

Further preferably, the air damping rod, the limiting ring and the central axis of the guide rod are overlapped, and the diameter of the outer arc of the power spring is smaller than that of the outer arc of the limiting ring.

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

the utility model discloses in, the frame roof beam is whole to be established to triangular supports structure, improves the stability of frame in the use as far as, and wherein the auxiliary girder adopts circular-arc structure, has higher bearing capacity, and the back chain stay can use the location axle to carry out the rotation regulation operation as the centre of a circle to the rotation operation who utilizes the back chain stay promotes the transmission pole slope and deflects, and the transmission pole can use linking up the axle to rotate as the centre of a circle, and can use linking up the axle to form lever structure as the fulcrum.

The utility model discloses in, damper can provide the elastic support effect for the left end of transmission pole to promote the transmission pole slope, the indirect operation that resets of carrying out the elasticity to the back chain stay, utilize cooperation between air damping pole and the helping hand spring can realize the cushioning effect to the transmission pole, and the guide bar can provide the guide effect for helping hand spring's shrink direction, wherein the spacing collar can be to carrying out displacement regulation from top to bottom through screw-thread fit, thereby adjust helping hand spring's the degree of tightening up.

Drawings

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

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

fig. 3 is the enlarged structure schematic diagram of the shock-absorbing assembly of the present invention.

In the figure: 1. a frame rail; 101. a main beam; 102. a secondary beam; 103. a seat post; 104. an axle tube; 2. positioning the shaft; 3. a rear bottom fork; 4. a transfer lever; 5. a connecting shaft; 6. a shock absorbing assembly; 601. an air damping rod; 602. a power-assisted spring; 603. a limiting ring; 604. a guide rod.

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 the staff of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a carbon fiber bicycle frame with shock-absorbing structure, including frame roof beam 1, frame roof beam 1 is by girder 101, auxiliary girder 102, sit pole 103 and central siphon 104 are constituteed, central siphon 104 respectively with the one end fixed connection of girder 101 and auxiliary girder 102, and the other end of girder 101 and auxiliary girder 102 all with sit pole 103 fixed connection, the lower extreme of sitting pole 103 is through the one end swing joint of location axle 2 with back chain stay 3, and swing joint between the other end of back chain stay 3 and transmission rod 4, the lower extreme of transmission rod 4 is connected with the middle part of sitting pole 103 through linking up axle 5, it is articulated between the other end of transmission rod 4 and damper 6's the upper end, it is articulated between damper 6's the lower extreme and the auxiliary girder 102.

In this embodiment, as shown in fig. 1, the main beam 101, the secondary beam 102 and the seat post 103 are of an integrated structure, and the main beam 101, the secondary beam 102 and the seat post 103 are distributed in a triangle; the frame beam 1 is integrally designed into a triangular support structure, so that the stability of the frame in the use process is improved as much as possible, and the secondary beam 102 is of an arc-shaped structure and has higher pressure-bearing capacity.

In the present embodiment, as shown in fig. 1 and fig. 2, the rear bottom fork 3 forms a rotating structure through the positioning shaft 2; the rear bottom fork 3 can rotate and adjust around the positioning shaft 2, so that the transmission rod 4 is pushed to incline and deflect by the rotation of the rear bottom fork 3.

In this embodiment, as shown in fig. 1 and 3, the transmission rod 4 is a bent structure, and a link transmission is adopted between the transmission rod 4 and the rear bottom fork 3; the transmission rod 4 can rotate around the joint shaft 5, and can form a lever structure with the joint shaft 5 as a fulcrum.

In this embodiment, as shown in fig. 1 and 3, the shock absorbing assembly 6 includes an air damping rod 601, a booster spring 602 is attached below the air damping rod 601, a guide rod 604 penetrates through the booster spring 602 and is fixedly connected with the lower end of the air damping rod 601, and a limit ring 603 in threaded connection with the guide rod 604 is attached to the lower end of the booster spring 602; the damping component 6 can provide elastic support for the left end of the transmission rod 4, so that the transmission rod 4 is pushed to incline, and the rear bottom fork 3 is indirectly subjected to elastic reset operation.

In this embodiment, as shown in fig. 3, the central axes of the air damping rod 601, the limiting ring 603 and the guide rod 604 are overlapped, and the diameter of the outer arc of the power spring 602 is smaller than that of the outer arc of the limiting ring 603; utilize the cooperation between air damping pole 601 and the helping hand spring 602 can realize cushioning effect to transfer bar 4 to guide bar 604 can provide the guide effect for the shrink direction of helping hand spring 602, and wherein spacing collar 603 can be to carrying out displacement adjustment from top to bottom through screw-thread fit, thereby adjust the degree of tightening up of helping hand spring 602.

The utility model discloses a use method and advantage: this kind of carbon fiber bicycle frame with shock-absorbing structure is when the rolling, the working process as follows:

as shown in fig. 1, 2 and 3, first, after the rear bottom fork 3 is pressed, the rear bottom fork 3 can be rotated and adjusted around the positioning shaft 2, thereby pushing the transmission rod 4 to deflect obliquely by utilizing the rotation operation of the rear bottom fork 3, the transmission rod 4 can rotate by taking the connecting shaft 5 as the center of a circle, and can form a lever structure by taking the connecting shaft 5 as a fulcrum, the damping component 6 can provide elastic supporting function for the left end of the transmission rod 4, thereby pushing the transfer rod 4 to incline, indirectly performing elastic reset operation on the rear bottom fork 3, realizing the shock absorption function on the transfer rod 4 by utilizing the matching between the air damping rod 601 and the power-assisted spring 602, and the guide rod 604 may provide a guide for the contraction direction of the assist spring 602, wherein the spacing collar 603 can be to carrying out displacement adjustment from top to bottom through screw-thread fit to adjust the degree of tightening up of helping hand spring 602.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a carbon fiber bicycle frame with shock-absorbing structure, includes car frame roof beam (1), car frame roof beam (1) comprises girder (101), auxiliary girder (102), sit pole (103) and central siphon (104), central siphon (104) respectively with the one end fixed connection of girder (101) and auxiliary girder (102), and the other end of girder (101) and auxiliary girder (102) all with sit pole (103) fixed connection, its characterized in that: the lower end of the seat rod (103) is movably connected with one end of the rear bottom fork (3) through the positioning shaft (2), the other end of the rear bottom fork (3) is movably connected with the transmission rod (4), the lower end of the transmission rod (4) is connected with the middle of the seat rod (103) through the connecting shaft (5), the other end of the transmission rod (4) is hinged with the upper end of the damping component (6), and the lower end of the damping component (6) is hinged with the auxiliary beam (102).

2. The carbon fiber bicycle frame with a shock absorbing structure as set forth in claim 1, wherein: the main beam (101), the auxiliary beam (102) and the seat rod (103) are of an integrated structure, and the main beam (101), the auxiliary beam (102) and the seat rod (103) are distributed in a triangular shape.

3. The carbon fiber bicycle frame with a shock absorbing structure as set forth in claim 1, wherein: the rear bottom fork (3) forms a rotating structure through the positioning shaft (2).

4. The carbon fiber bicycle frame with a shock absorbing structure as set forth in claim 1, wherein: the transmission rod (4) is of a bent structure, and the transmission rod (4) and the rear bottom fork (3) are in connecting rod transmission.

5. The carbon fiber bicycle frame with a shock absorbing structure as set forth in claim 1, wherein: shock-absorbing component (6) include air damping rod (601), the below laminating of air damping rod (601) has helping hand spring (602), and guide bar (604) run through in helping hand spring (602) and air damping rod (601) lower extreme fixed connection, the lower extreme laminating of helping hand spring (602) has spacing collar (603) with guide bar (604) threaded connection.

6. The carbon fiber bicycle frame with a shock absorbing structure as set forth in claim 5, wherein: the air damping rod (601), the limiting ring (603) and the guide rod (604) are overlapped, and the diameter of an outer arc of the power-assisted spring (602) is smaller than that of the outer arc of the limiting ring (603).