CN211893515U

CN211893515U - Foldable carbon fiber bicycle frame

Info

Publication number: CN211893515U
Application number: CN201922423582.5U
Authority: CN
Inventors: 陈云霄
Original assignee: Anhui Xinpunuo Carbon Fiber Technology Co ltd
Current assignee: Anhui Xinpunuo Carbon Fiber Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-10
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a foldable carbon fiber bicycle frame, which comprises a front wheel tube, a front tripod, a seat tube, a crossbeam and a rear tripod, wherein the rear tripod is fixed below the seat tube, the seat tube is provided with a sleeve connected with a bearing of the seat tube, one end of the crossbeam is fixedly connected on the sleeve, the other end of the crossbeam is fixedly connected on the front wheel tube, the seat tube is provided with a fastening mechanism, the fastening mechanism comprises a fixed block arranged below the sleeve, a movable block arranged above the sleeve and a limit pin, the utility model discloses a seat tube is connected with the sleeve bearing, the crossbeam is fixed on the sleeve, the sleeve can drive the crossbeam to rotate, thereby completing the folding of the bicycle frame, the preliminary limit function is achieved through the fixed block and the movable block, the limit pin respectively passes through the sleeve and the seat tube are provided with a mounting hole and a mounting groove, further spacing, dual spacing fastening device guarantees the stability before bicycle frame is folded.

Description

Foldable carbon fiber bicycle frame

Technical Field

The utility model mainly relates to the technical field of bicycles, concretely relates to folding carbon fiber bicycle frame.

Background

With the enhancement of environmental awareness of people, bicycle travel gradually becomes a general travel traffic mode, and simultaneously, bicycle motion is also a very popular competitive sports, and the bicycle trade is also continuously improving each spare part of bicycle and satisfying user's demand. The bicycle frame is one of main components of the bicycle and is gradually improved from an original iron frame into an aluminum alloy frame or a carbon fiber frame which is used at present.

Current bicycle structure is loaded down with trivial details, and is inconvenient to carry, has brought the inconvenience for consumer's trip use, and the bicycle occupies storage space greatly, consequently the utility model provides a folding carbon fiber bicycle frame can fold, conveniently carries.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a folding carbon fiber bicycle frame for solve the technical problem who proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a technical scheme does: the utility model provides a folding carbon fiber bicycle frame, includes front wheel pipe, front tripod, seat pipe, crossbeam and back tripod, the back tripod is fixed the below of seat pipe, be equipped with on the seat pipe with the sleeve that seat pipe bearing is connected, crossbeam one end fixed connection be in on the sleeve, the other end fixed connection of crossbeam is in on the front wheel pipe, just be equipped with on the seat pipe and be used for the fastening telescopic fastening mechanism.

Preferably, fastening device includes first fastener and second fastener, first fastener is including setting up the fixed block in the sleeve below and setting up the movable block in the sleeve top, the fixed block is fixed telescopic below, movable block threaded connection the seat pipe, the inside internal thread that is equipped with of movable block, with the seat pipe outside that the movable block is connected is equipped with the external screw thread, second fastener includes the spacer pin, the sleeve with be equipped with mounting hole and mounting groove on the seat pipe that the sleeve is connected respectively, the spacer pin can pass mounting hole and mounting groove, the length of spacer pin is greater than the distance of mounting hole to the mounting groove, just the outside of spacer pin is equipped with the protective cover.

Preferably, the crossbeam top is equipped with first strengthening beam, the welding of the first strengthening beam other end is in sleeve upper portion, the crossbeam below is equipped with the second strengthening beam, the welding of the second strengthening beam other end is in the sleeve lower part, first strengthening beam and second strengthening beam are an arc stiffener, and the symmetry sets up the upper and lower both ends of crossbeam.

Preferably, a damping plate is arranged below the cross beam, one end of the damping plate is connected below the cross beam, and the other end of the damping plate is connected to the front wheel tube.

Preferably, a damping spring is arranged between the front wheel tube and the front tripod, the front tripod comprises a left front fork and a right front fork, and a reinforcing plate is arranged between the left front fork and the right front fork.

Preferably, the rear tripod comprises two groups of left rear forks and right rear forks which are symmetrically arranged, and reinforcing rods are arranged between the left rear forks and between the right rear forks in the same group.

Preferably, a compression spring is arranged on the seat tube above the movable block.

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

1. the utility model discloses a be equipped with on the seat pipe with the sleeve that seat pipe bearing is connected, be fixed with the crossbeam on the sleeve, the sleeve can drive the crossbeam and rotate to accomplish folding of bicycle frame, and through being equipped with fixed block and movable block, the fixed block is fixed in the bottom of sleeve, and the movable block is connected with the seat pipe screw thread on sleeve upper portion, through moving the movable block to the sleeve top, thereby play preliminary limiting displacement, through being equipped with the spacer pin, be equipped with mounting hole and mounting groove on sleeve and the seat pipe that is connected with the sleeve respectively, the spacer pin can pass mounting hole and mounting groove, carries out further spacing, thereby guarantees bicycle frame folding front and back stability;

2. the utility model discloses a be equipped with first strengthening beam on the crossbeam, be equipped with the second strengthening beam below the crossbeam, be equipped with the reinforcing plate between left front fork and right front fork, all be equipped with the stiffener between the left back fork of the same group, between the right back fork of the same group to the overall structure intensity of bicycle frame has been guaranteed;

3. the utility model discloses a be equipped with the shock attenuation board below the crossbeam the front wheel pipe with be equipped with damping spring between the preceding tripod, be equipped with compression spring in the top of seat pipe, to the certain cushioning effect of bicycle frame.

Drawings

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

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

fig. 3 is a schematic view of the structure of the joint between the movable block and the seat tube of the present invention.

In the drawings, 1-the front wheel tube; 2-a front tripod; 201-left front fork; 202-right front fork; 3-a seat tube; 4-a cross beam; 5-rear tripod; 501-left rear fork; 502-right rear fork; 6-a sleeve; 7-fixing blocks; 8-a movable block; 9-a limit pin; 10-mounting holes; 11-mounting grooves; 12-a reinforcing rod; 13-a first reinforcing beam; 14-a compression spring; 15-a second reinforcement beam; 16-a shock absorbing plate; 17-a damping spring; 18-reinforcing plate.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but which are provided so as to render the disclosure of the invention more thorough and complete.

Referring to fig. 1-3, a foldable carbon fiber bicycle frame comprises a front wheel tube 1, a front tripod 2, a seat tube 3, a cross beam 4 and a rear tripod 5, wherein the rear tripod 5 is fixed below the seat tube 3, the seat tube 3 is provided with a sleeve 6 in bearing connection with the seat tube 3, one end of the cross beam 4 is fixedly connected to the sleeve 6, the other end of the cross beam 4 is fixedly connected to the front wheel tube 1, and the seat tube 3 is provided with a fastening mechanism for fastening the sleeve 6.

In this embodiment, a sleeve 6 bearing-connected to the seat tube 3 is disposed on the seat tube 3, a beam 4 is fixed on the sleeve 6, and the sleeve 6 can drive the beam 4 to rotate, thereby completing folding of the bicycle frame.

Referring to fig. 1-3, the fastening mechanism includes a first fastening device and a second fastening device, the first fastening device includes a fixed block 7 disposed below the sleeve 6 and a movable block 8 disposed above the sleeve 6, the fixed block 7 is fixed below the sleeve 6, the movable block 8 is in threaded connection with the seat tube 3, an internal thread is disposed inside the movable block 8, an external thread is disposed outside the seat tube 3 connected to the movable block 8, wherein the length of the external thread disposed on the seat tube 3 is greater than that of the movable block 8, the second fastening device includes a limit pin 9, the sleeve 6 and the seat tube 3 connected to the sleeve 6 are respectively provided with an installation hole 10 and an installation groove 11, the limit pin 9 can pass through the installation hole 10 and the installation groove 11, the length of the limit pin 9 is greater than the distance from the installation hole 10 to the installation groove 11, and a protective cover is arranged outside the limit pin 9.

In this embodiment, through being equipped with fixed block 7 and movable block 8, fixed block 7 and movable block 8 are the cylinder structure, and fixed block 7 is fixed in the bottom of sleeve 6, and the seat pipe 3 threaded connection on movable block 8 and sleeve 6 upper portion is through removing movable block 8 to sleeve 6 top to play preliminary limiting displacement, through being equipped with spacer pin 9, at sleeve 6 and with be equipped with mounting hole 10 and mounting groove 11 on the seat pipe 3 that sleeve 6 is connected respectively, spacer pin 9 can pass mounting hole 10 and mounting groove 11 carry out further spacing, thereby guarantee bicycle frame stability around folding.

In this embodiment, the protective cover plays a role of protecting the limit pin 9, and the protective cover can be opened, so as to facilitate the extraction of the limit pin 9.

In order to further perfect this embodiment, be cylinder type structure through design spacer pin 9, the place ahead of spacer pin 9 is equipped with the rectangle stopper, when rectangle stopper level was placed, can pass mounting groove 11, when the vertical place of rectangle stopper, can not pass mounting groove 11, when rectangle stopper level was placed, pass mounting hole 10 and mounting groove 11 with spacer pin 9, through rotatory spacer pin 9, make the rectangle stopper be vertical placing, thereby play limiting displacement.

Referring to fig. 1-3, crossbeam 4 top is equipped with first strengthening beam 13, the top of movable block 8, be equipped with compression spring 14 on the seat pipe 3, the welding of the first strengthening beam 13 other end is in 6 upper portions of sleeve, crossbeam 4 below is equipped with second strengthening beam 15, the welding of the second strengthening beam 15 other end is in 6 lower parts of sleeve, first strengthening beam 13 and second strengthening beam 15 are an arc stiffener, and the symmetry sets up the upper and lower both ends of crossbeam 4.

In the present embodiment, by providing the first reinforcing beam 13 and the second reinforcing beam 15, the structural strength of the beam is improved.

Referring to fig. 1-3, a damping plate 16 is arranged below the cross beam 4, one end of the damping plate 16 is connected below the cross beam 4, the other end of the damping plate 16 is connected to the front wheel tube 1, the damping plate 16 is arranged below the cross beam 4, the damping plate 16 is respectively connected to the cross beam 4 and the front wheel tube 1 through a buffer spring, and the damping plate 16 can buffer the acting force during riding, so that the damping effect is achieved.

Referring to fig. 1 to 3, a damping spring 17 is disposed between the front wheel tube 1 and the front tripod 2, the front tripod 2 includes a left front fork 201 and a right front fork 202, and a reinforcing plate 18 is disposed between the left front fork 201 and the right front fork 202.

In the present embodiment, a damping spring 17 is provided between the front wheel tube 1 and the front tripod 2 to perform a damping function, and the reinforcing plate 18 is provided between the left front fork 201 and the right front fork 202 to improve the structural strength of the front tripod 2.

Referring to fig. 1-3, the rear tripod 5 includes two sets of left rear forks 501 and right rear forks 502 symmetrically disposed, and reinforcing rods 12 are disposed between the left rear forks 501 of the same set and between the right rear forks 502 of the same set.

In this embodiment, the reinforcing rods 12 are provided between the left rear forks 501 of the same group and between the right rear forks 502 of the same group, so that the structural strength of the rear tripod 5 is enhanced.

The utility model discloses a be equipped with on the stand pipe with the sleeve that seat pipe bearing is connected is fixed with the crossbeam on the sleeve, and the sleeve can drive the crossbeam and rotate to accomplish bicycle frame's folding, and through being equipped with fixed block and movable block, the fixed block is fixed in telescopic bottom, and movable block and sleeve upper portion seat pipe threaded connection are through removing the movable block to the sleeve top, thereby play preliminary limiting displacement, through being equipped with the spacer pin, at the sleeve with be equipped with mounting hole and mounting groove on the seat pipe that the sleeve is connected respectively, the spacer pin can pass mounting hole and mounting groove are further spacing, thereby guarantee bicycle frame stability around folding, through be equipped with first strengthening beam on the crossbeam, have the second strengthening beam under the crossbeam left side front fork with be equipped with the reinforcing plate between the right front fork, in the same group between the left side rear fork, The shock absorption type bicycle is characterized in that reinforcing rods are arranged between the right rear fork and the right rear fork in the same group, so that the overall structural strength of the bicycle frame is guaranteed, a shock absorption plate is arranged below the cross beam, a shock absorption spring is arranged between the front wheel tube and the front tripod, and a compression spring is arranged above the seat tube, so that the shock absorption effect on the bicycle frame is achieved.

However, while the invention has been described in detail by way of the general description and the specific examples, it will be apparent to those skilled in the art that certain modifications and improvements may be made thereto without departing from the spirit of the invention.

Claims

1. The utility model provides a folding carbon fiber bicycle frame, includes front wheel pipe (1), preceding tripod (2), seat pipe (3), crossbeam (4) and back tripod (5), back tripod (5) are fixed the below of seat pipe (3), its characterized in that: the seat tube (3) is provided with a sleeve (6) connected with the seat tube (3) through a bearing, one end of the cross beam (4) is fixedly connected onto the sleeve (6), the other end of the cross beam (4) is fixedly connected onto the front wheel tube (1), and the seat tube (3) is provided with a fastening mechanism used for fastening the sleeve (6).

2. A foldable carbon fiber bicycle frame as claimed in claim 1, wherein: the fastening mechanism comprises a first fastening device and a second fastening device, the first fastening device comprises a fixed block (7) arranged below the sleeve (6) and a movable block (8) arranged above the sleeve (6), the fixed block (7) is fixed below the sleeve (6), the movable block (8) is in threaded connection with the seat pipe (3), internal threads are arranged inside the movable block (8), external threads are arranged outside the seat pipe (3) connected with the movable block (8), the second fastening device comprises a limit pin (9), the sleeve (6) and the seat pipe (3) connected with the sleeve (6) are respectively provided with a mounting hole (10) and a mounting groove (11), the limit pin (9) can penetrate through the mounting hole (10) and the mounting groove (11), and the length of the limit pin (9) is greater than the distance from the mounting hole (10) to the mounting groove (11), and a protective cover is arranged outside the limiting pin (9).

3. A foldable carbon fiber bicycle frame as claimed in claim 1, wherein: crossbeam (4) top is equipped with first strengthening beam (13), first strengthening beam (13) other end welding is in sleeve (6) upper portion, crossbeam (4) below is equipped with second strengthening beam (15), second strengthening beam (15) other end welding is in sleeve (6) lower part, first strengthening beam (13) with second strengthening beam (15) are an arc stiffener.

4. A foldable carbon fiber bicycle frame as claimed in claim 3, wherein: the shock absorption device is characterized in that a shock absorption plate (16) is arranged below the cross beam (4), one end of the shock absorption plate (16) is connected above the cross beam (4), and the other end of the shock absorption plate (16) is connected to the front wheel tube (1).

5. A collapsible carbon fibre bicycle frame as claimed in claim 4, in which: the shock absorption device is characterized in that a shock absorption spring (17) is arranged between the front wheel tube (1) and the front tripod (2), the front tripod (2) comprises a left front fork (201) and a right front fork (202), and a reinforcing plate (18) is arranged between the left front fork (201) and the right front fork (202).

6. A foldable carbon fiber bicycle frame as claimed in claim 1, wherein: the rear tripod (5) comprises two groups of left rear forks (501) and right rear forks (502) which are symmetrically arranged, and reinforcing rods (12) are arranged between the left rear forks (501) and between the right rear forks (502).

7. A foldable carbon fiber bicycle frame as claimed in claim 2, wherein: and a compression spring (14) is arranged on the seat tube (3) above the movable block (8).