CN220363414U

CN220363414U - Lifting seat tube for bicycle

Info

Publication number: CN220363414U
Application number: CN202321201422.6U
Authority: CN
Inventors: 何国爱
Original assignee: Suzhou Aimeng Machinery Co ltd
Current assignee: Suzhou Aimeng Machinery Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2024-01-19
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a bicycle lifting seat tube, which comprises a lifting inner tube and an outer tube, wherein the outer tube comprises an outer tube inner layer and an outer tube outer layer, the outer tube inner layer is fixed on the inner wall of the outer tube outer layer, the outer tube is slidably sleeved on the outer side of a bushing, a plurality of supporting blocks are arranged on the inner wall of the outer tube at equal intervals along the longitudinal direction or the transverse direction of the inner wall of the outer tube, one end of the plurality of supporting blocks far away from the outer tube supports the bottom of the lifting inner tube, the upper end of the lifting inner tube is provided with a saddle fixing device, and the supporting blocks are driven to rotate by lifting a first annular protruding part, so that the lifting inner tube can move up and down, the height of the seat tube is adjusted, the lifting inner tube is supported by clamping the supporting blocks to fix the seat tube, and a tube extrusion fixing structure is omitted. The utility model saves labor in adjusting the height of the seat tube, has small friction between the seat tube and the vehicle body tube during the adjustment, has small extrusion to the seat tube and the vehicle body tube, avoids the deformation of the connecting tube, and has various lifting modes of the seat tube structure, stable structure and strong use experience.

Description

Lifting seat tube for bicycle

Technical Field

The utility model relates to the technical field of bicycles, in particular to a lifting seat tube of a bicycle.

Background

Most of the traditional bicycle seat pipes are directly inserted into seat pipes, and seat pipes in the bicycle body pipes are locked through locking pieces. When the sitting tube is lifted and adjusted, the sitting tube is required to be pulled up and down, so that the sitting tube is directly rubbed with the car body tube, the problem of galling or even clamping is caused, and the pulling process of the sitting tube is too laborious for a female rider and the use experience is extremely poor; after the lifting seat pipe is used for a plurality of times, the clamp is easy to squeeze and deform the fixed outer sleeve, so that the linear bearing is deformed, the up-and-down sliding smoothness of the lifting inner saddle pipe is affected, and even the clamp is dead and scrapped.

Disclosure of Invention

The utility model aims at: in order to solve the problems that when a seat tube is lifted and pulled, the seat tube is pulled and clamped by direct friction between the seat tube and a vehicle body tube, the seat tube is lifted and stopped difficultly, the seat tube is used for a plurality of times due to clamp fixation, and a fixed tube sleeve is extruded and deformed to cause unsmooth lifting and even dead clamping and scrapping, the seat tube for lifting the bicycle is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a bicycle lift seat pipe, includes lift inner tube and outer tube, and the outer tube includes outer tube inlayer and outer, and the outer tube inlayer is fixed on the outer inner wall of outer tube, and the outer tube slidable ground cover is established in the outside of bush, and the longitudinal or horizontal orientation equidistance of going along the inner wall of outer tube sets up a plurality of supporting shoe on the inner wall of outer tube, and the bottom of lift inner tube is held to the one end that a plurality of supporting shoe kept away from the outer tube, and the upper end of lift inner tube sets up saddle fixing device.

As a further description of the above technical solution:

the outer wall of the outer tube is provided with a first annular protruding portion.

As a further description of the above technical solution:

the supporting blocks penetrate through the trapezoid through holes of the bushing and the square through holes of the inner layer of the outer tube left and right and are inserted into the square blind holes of the outer layer of the outer tube.

As a further description of the above technical solution:

the upper end of the square blind hole is higher than the upper end of the square through hole.

As a further description of the above technical solution:

the supporting block is rotatably hinged in the bushing through the hinge piece, and one end of the supporting block, which is far away from the outer tube, is provided with the clamping block.

As a further description of the above technical solution:

the bottom of the lifting inner tube is provided with an inner tube base, and the lower end of the inner tube base is provided with a second annular protruding part.

As a further description of the above technical solution:

the clamping block is clamped on the inner side of the second annular protruding portion.

As a further description of the above technical solution:

the upper end of the inner layer of the outer tube is provided with a third annular protruding part, the third annular protruding part is positioned right above the bushing, the lower end of the bushing is provided with a fourth annular protruding part, and the bottom of the outer tube is supported by the fourth annular protruding part.

As a further description of the above technical solution:

the saddle fixing device is provided with a clamping part, and a corresponding fixing plate at the bottom of the saddle is placed between the saddle fixing device and the clamping part and is fixed through a plurality of fasteners.

In summary, due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:

the supporting block is driven to rotate through the first annular protruding portion of lifting, the lifting inner pipe can move up and down, the height of the seat pipe is adjusted, the lifting inner pipe is supported through the supporting block in a clamping mode to be fixed in a seat pipe, the pipe body extrusion fixing structure is omitted, the structure enables the seat pipe to be labor-saving in height adjustment, friction among pipes during the time is small, extrusion of the seat pipe and the car body pipe is small, deformation of the connecting pipe is avoided, and the seat pipe structure is various in lifting mode, stable in structure and strong in use experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is one of the partial sectional views of a bicycle lift seat tube in use.

Fig. 2 is a cross-sectional view at a in fig. 1.

FIG. 3 is one of the partial use sectional views of the lifting seat tube of the bicycle.

Fig. 4 is a front view of a bicycle lift seat tube.

Legend description:

1. lifting the inner tube; 2. an outer tube; 3. an inner layer of the outer tube; 4. an outer tube outer layer; 5. a bushing; 6. a first annular projection; 7. a support block; 8. saddle fixing device; 11. an inner tube base; 12. a second annular projection; 31. a third annular projection; 32. square through holes; 41. square blind holes; 51. a hinge; 52. a trapezoidal through hole; 53. a fourth annular projection; 71. a clamping block; 81. a clamping part; 82. a fastener.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Embodiment one:

referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a bicycle lift seat pipe, including lift inner tube 1 and outer tube 2, outer tube 2 includes outer tube inlayer 3 and outer 4 of outer tube, outer tube inlayer 3 is fixed on the inner wall of outer 4 of outer tube, outer tube 2 slidable ground cover is established in the outside of bush 5, the inside wall of outer tube 2 is gone up along the longitudinal direction of the inner wall of outer tube 2 or transversely walks the equidistant a plurality of supporting shoe 7 that set up, the bottom of lift inner tube 1 is held to the one end that outer tube 2 was kept away from to a plurality of supporting shoe 7, the upper end of lift inner tube 1 sets up saddle fixing device 8, this structure can realize the altitude mixture control and the stable in structure of seat pipe, it is less to have a fixed pair of pipe body extrusion, the body is difficult for warping.

Embodiment two:

on the basis of the first embodiment, preferably, the outer wall of the outer tube 2 is provided with the first annular protruding portion 6, so that the outer tube is convenient to lift, and the lifting process is simple and convenient.

Embodiment III:

on the basis of the first embodiment, preferably, the supporting block 7 is inserted into the square blind hole 41 of the outer tube outer layer 4 while penetrating the trapezoid through hole 52 of the bushing 5 and the square through hole 32 of the outer tube inner layer 3, the upper end of the square blind hole 41 is higher than the upper end of the square through hole 32, the supporting block 7 is rotatably hinged in the bushing 5 by the hinge piece 51, the clamping block 71 is arranged at one end of the supporting block 7 far away from the outer tube 2, the inner tube base 11 is arranged at the bottom of the lifting inner tube 1, the second annular protruding part 12 is arranged at the lower end of the inner tube base 11, and the clamping block 71 is clamped at the inner side of the second annular protruding part 12, so that the supporting block can rotate bidirectionally and be more silky, and the fixing of the lifting inner tube is firmer.

Embodiment four:

on the basis of the first embodiment, preferably, the upper end of the inner layer 3 of the outer tube is provided with the third annular protruding portion 31, the third annular protruding portion 31 is located right above the bushing 5, the lower end of the bushing 5 is provided with the fourth annular protruding portion 53, the bottom of the outer tube 2 is supported by the fourth annular protruding portion 53, the relative sliding between the outer tube and the bushing is limited, and the damage of the supporting block caused by excessive movement is avoided.

Fifth embodiment:

on the basis of the first embodiment, preferably, the clamping part 81 is provided on the saddle fixing device 8, and the corresponding fixing plate at the bottom of the saddle is placed between the saddle fixing device 8 and the clamping part 81 and is fixed by a plurality of fasteners 82, so that the saddle is fixed more firmly by the seat tube, and the saddle is prevented from shifting and shaking during riding.

The working principle of the lifting seat tube of the bicycle of the embodiment comprises: the initial state is like fig. 1, the bottom of lift inner tube is held to supporting shoe joint formula, lift inner tube only can upwards stimulate the support shoe rotation of locating layer this moment, in order to break away from locating layer, and the supporting shoe of joint upper strata, in order to improve saddle height, lift it upwards through holding the lower extreme of first annular bellying, it is rotatory to drive the supporting shoe (like fig. 3), lift inner tube can reciprocate this moment, this structure makes the pipe height adjustment laborsaving and during the period friction little, to the extrusion of sitting pipe and car body pipe less, avoid the deformation of connecting pipe, the pipe ascending mode is various and the elevation structure is stable, the use experience is felt strongly.

In summary, due to the adoption of the technical scheme, the bicycle lifting seat tube of the embodiment has the following beneficial effects compared with the prior art:

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims

1. The utility model provides a bicycle lift seat pipe, its characterized in that, including lift inner tube (1) and outer tube (2), outer tube (2) include outer tube inlayer (3) and outer tube skin (4), outer tube inlayer (3) are fixed on the inner wall of outer tube skin (4), the outside at bush (5) is established to outer tube (2) slidable ground cover, follow on the inner wall of outer tube (2) the longitudinal direction of the inner wall of outer tube (2) or horizontal direction equidistance of walking set up a plurality of supporting shoe (7), a plurality of supporting shoe (7) keep away from the one end of outer tube (2) holds in the palm the bottom of lift inner tube (1), and the upper end of lift inner tube (1) sets up saddle fixing device (8).

2. A bicycle lifting seat according to claim 1, characterized in that the outer wall of the outer tube (2) is provided with a first annular projection (6).

3. A bicycle lifting seat tube according to claim 1, characterized in that the supporting blocks (7) penetrate left and right through the trapezoid through holes (52) of the bushing (5) and the square through holes (32) of the outer tube inner layer (3) and are inserted into the square blind holes (41) of the outer tube outer layer (4).

4. A bicycle lifting seat according to claim 3, characterized in that the upper end of the square blind hole (41) is higher than the upper end of the square through hole (32).

5. A bicycle lifting seat according to claim 3, characterized in that the support block (7) is rotatably hinged in the bushing (5) by means of a hinge (51), the end of the support block (7) remote from the outer tube (2) being provided with a snap-in block (71).

6. A bicycle lifting seat tube according to claim 5, characterized in that the bottom of the lifting inner tube (1) is provided with an inner tube base (11), the lower end of the inner tube base (11) is provided with a second annular protrusion (12).

7. A bicycle lifting seat according to claim 6, characterized in that the clamping block (71) is clamped inside the second annular projection (12).

8. A bicycle lifting seat according to claim 1, characterized in that the upper end of the inner tube layer (3) is provided with a third annular bulge (31), the third annular bulge (31) is located right above the bushing (5), the lower end of the bushing (5) is provided with a fourth annular bulge (53), and the fourth annular bulge (53) holds the bottom of the outer tube (2).

9. A bicycle lifting seat according to claim 1, characterized in that the saddle fixing means (8) is provided with a clamping part (81), and that the corresponding fixing plate at the bottom of the saddle is placed between the saddle fixing means (8) and the clamping part (81) and is fixed by means of a plurality of fasteners (82).