CN116534178A

CN116534178A - Telescopic folding bicycle

Info

Publication number: CN116534178A
Application number: CN202310412972.0A
Authority: CN
Inventors: 韩德玮; 郑汉信; 莫怡平
Original assignee: Shenzhen Meidahang Technology Co ltd
Current assignee: Shenzhen Meidahang Technology Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-08-04

Abstract

The invention relates to a telescopic folding bicycle, comprising: the frame comprises a main beam pipe, a front fork and a rear fork, wherein the main beam pipe comprises a first part and a second part which are mutually sleeved, the front fork is connected with the first part, the rear fork is connected with the second part, the front fork is used for assembling front wheels, and the rear fork is used for assembling rear wheels; the first portion is switchable relative to the second portion between a first position extending forward and a second position retracting rearward to switch the telescopic folding bicycle between an unfolded state and a folded state. Because the girder pipe includes first part and the second part that cup joints each other, then when folding flexible folding bicycle, operation first part is folding for the second part switch over from the first position to the second position can, when first part is in the second position for first part, the size of girder pipe is less to make the volume of whole flexible folding bicycle less.

Description

Telescopic folding bicycle

Technical Field

The invention relates to a telescopic folding bicycle.

Background

Bicycles, also known as bicycles or scooters, are typically two-wheeled land vehicles. The bicycle can be used as an environment-friendly transportation tool for riding instead of walking and traveling, and can also be used as a body-building device for riding exercise and traveling, so that the bicycle becomes an important traveling and body-building tool in daily life of people.

Generally, some bicycles have an expanded state and a collapsed state, when in the expanded state, facilitating riding by a rider, and when in the collapsed state, they are reduced in volume for storage.

However, when the conventional bicycle is in a folded state, the problem of large volume still exists, and inconvenience is brought to storage.

Disclosure of Invention

Based on this, it is necessary to provide a telescopic folding bicycle capable of reducing the volume in the folded state to facilitate storage, aiming at the problem that the conventional bicycle is still large in volume in the folded state to bring inconvenience to storage.

A telescopic folding bicycle, the telescopic folding bicycle comprising:

the frame comprises a main beam pipe, a front fork and a rear fork, wherein the main beam pipe comprises a first part and a second part which are mutually sleeved, the front fork is connected with the first part, the rear fork is connected with the second part, the front fork is used for assembling front wheels, and the rear fork is used for assembling rear wheels; the first part comprises a first connecting part, a first folder and a second connecting part, the first connecting part is sleeved with the second part, the second connecting part is connected with the first connecting part through the first folder, and the front fork is connected with the second connecting part;

wherein the first portion is switchable relative to the second portion between a first position in which it is extended forward and a second position in which it is retracted rearward, so that the telescopic folding bicycle is switched between an extended state and a folded state.

Above-mentioned flexible folding bicycle, because girder pipe includes first part and the second part that cup joints each other, then when folding flexible folding bicycle, operation first part switch over to the second position folding can for the second part from first position, when first part is in the second position for first part, the size of girder pipe is less to make the volume of whole flexible folding bicycle less, the accomodate of convenient flexible folding bicycle.

In one embodiment, the second part comprises a first pipe body and a second pipe body which are mutually sleeved, the rear fork is connected with the first pipe body, and the first connecting part is sleeved with the second pipe body;

wherein the first tube is switchable relative to the second tube between a third position extending rearward and a fourth position retracting forward to switch the telescopic folding bicycle between the extended and folded states; or the first pipe body is hinged with the second pipe body, so that the telescopic folding bicycle is switched between the unfolding state and the folding state.

In one embodiment, the second pipe body comprises a main body and a mounting part, wherein the main body is connected with the first part and the first pipe body, and the mounting part is connected with the main body and is used for mounting a pedal; the frame also comprises a support rod, wherein the support rod comprises a first support part and a second support part, the first support part is connected with the rear fork, the second support part is connected with the mounting part, and the first support part is hinged with the second support part;

when the telescopic folding bicycle is in the unfolding state, the first supporting part is connected with the second supporting part and is supported and arranged between the rear fork and the mounting part; when the telescopic folding bicycle is in the folding state, the first supporting part and the second supporting part are folded in a rotating mode.

In one embodiment, the support rod further comprises a screwing part, wherein a meshing part is arranged on one side of the first support part and one side of the second support part facing each other, and the screwing part penetrates through the first support part and the second support part;

when the telescopic folding bicycle is in the unfolding state, the first supporting part is meshed with the meshed part of the second supporting part, and the screwing part is used for fixing the first supporting part and the second supporting part; when the telescopic folding bicycle is switched from the unfolding state to the folding state, the screwing part is screwed, and the first supporting part and the engagement part of the second supporting part are operated to be separated and relatively rotate.

In one embodiment, the frame further comprises a standpipe for mounting a saddle, and a rear saddle, both of which are connected to the second portion;

when the telescopic folding bicycle is in the unfolding state, the vertical pipe penetrates through the first part and the second part; when the telescopic folding bicycle is in the folded state, the vertical tube is detached from the first part and the second part and is mounted on the rear saddle.

In one embodiment, the frame further comprises a riser for mounting a handlebar, the riser being mounted on the second connection.

In one embodiment, the stand pipe comprises a third connecting part, a second folder and a fourth connecting part, wherein the third connecting part is connected with the second connecting part, and the fourth connecting part is connected with the third connecting part through the second folder and is used for installing a handlebar;

when the telescopic folding bicycle is in the folded state, the fourth connecting portion is folded with the third connecting portion through the second folder.

In one embodiment, the telescopic folding bicycle further comprises a front wheel and a rear wheel, wherein the front wheel is mounted on the front fork, and the rear wheel is mounted on the rear fork;

when the telescopic folding bicycle is in the folding state, the front wheel and the rear wheel are coaxially arranged, and the handle bars are clamped between the front wheel and the rear wheel.

In one embodiment, the telescopic folding bicycle further comprises a first quick-release member mounted on one of the first portion and the second portion sleeved outside; the first quick release is used to lock or unlock the connection of the first portion to the second portion.

In one embodiment, the telescopic folding bicycle further comprises a universal wheel assembly connected to the first portion or the second portion, movable relative to the frame to switch between a fifth position and a sixth position to enable contact with the ground to support the telescopic folding bicycle or to enable separation from the ground.

Drawings

FIG. 1 is an isometric view of a telescopic folding bicycle according to an embodiment of the present invention in an unfolded state;

FIG. 2 is an isometric view of the telescopic folding bicycle illustrated in FIG. 1 from another perspective;

FIG. 3 is a partial exploded view of the telescopic folding bicycle shown in FIG. 1;

FIG. 4 is an isometric view of the telescopic folding bicycle shown in FIG. 1 in an intermediate state between the unfolded state and the folded state;

FIG. 5 is an isometric view of the telescopic folding bicycle illustrated in FIG. 1 in a folded condition;

FIG. 6 is an isometric view of the telescopic folding bicycle illustrated in FIG. 4 from another perspective;

fig. 7 is an isometric view of the telescopic folding bicycle shown in fig. 5 from another perspective.

Reference numerals illustrate:

1000. a telescopic folding bicycle; 100. a frame; 10. a main beam tube; 11. a second portion; 111. a first tube body; 1111. a second deformation slit; 112. a second tube body; 1121. a main body; 1122. a mounting part; 1123. a first deformation slit; 1124. an assembling portion; 12. a first portion; 121. a first connection portion; 122. a first folder; 123. a second connecting portion; 20. a front fork; 30. a rear fork; 40. a support rod; 41. a first support portion; 42. a second supporting part; 43. a screwing part; 44. a bite portion; 50. a standpipe; 60. a rear seat; 61. a clasp; 70. a third quick release; 80. a riser; 81. a third connecting portion; 82. a second folder; 83. a fourth connecting portion; 200. a front wheel; 300. a rear wheel; 401. a first operating handle; 500. foot pedal; 600. a sprocket; 701. a second operating handle; 800. a saddle; 900. a handle bar; 1100. a universal wheel assembly.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, an embodiment of the present invention provides a telescopic folding bicycle 1000, which includes a frame 100, a front wheel 200 and a rear wheel 300. The frame 100 includes a main beam 10, a front fork 20 and a rear fork 30, the front fork 20 and the rear fork 30 are connected to the main beam 10, a front wheel 200 is connected to the front fork 20, and a rear wheel 300 is connected to the rear fork 30.

The main beam tube 10 includes a first portion 12 and a second portion 11 that are coupled to each other, a front fork 20 coupled to the first portion 12, and a rear fork 30 coupled to the second portion 11. The first portion 12 is switchable relative to the second portion 11 between a first position extending forward and a second position contracting rearward to switch the telescopic folding bicycle 1000 between an unfolded state and a folded state.

Here, the above "forward" means: if the rear wheel 300 is immobilized, the front wheel 200 will move forward in a first direction, and in this case forward, when the first portion 12 is extended relative to the second portion 11. The above "rearward" means: if the rear wheel 300 is immobilized, the front wheel 200 will move in the opposite direction, in this case backwards, when the first portion 12 is retracted relative to the second portion 11. It should be noted that the length of the main beam tube 10 of the telescopic folding bicycle 1000 in the unfolded state is greater than that of the main beam tube 10 in the folded state.

The telescopic folding bicycle 1000 provided in this embodiment of the present application, because the main beam tube 10 includes the first portion 12 and the second portion 11 that cup joint each other, then when folding the telescopic folding bicycle 1000, the operation first portion 12 is switched to the second position for the second portion 11 can, when the first portion 12 is in the second position for the first portion 12, the size of the main beam tube 10 is smaller to make the volume of whole telescopic folding bicycle 1000 less, make things convenient for the accomodating of telescopic folding bicycle 1000.

In some embodiments, the first portion 12 is nested within the second portion 11. The second part 11 comprises a first tube 111 and a second tube 112 which are sleeved with each other, the rear fork 30 is connected with the first tube 111, and the first part 12 is sleeved with the second tube 112. Wherein the first tube 111 is switchable between a third position extending rearward and a fourth position contracting forward relative to the second tube 112 to switch the telescopic folding bicycle 1000 between an unfolded state and a folded state. Thus, when the telescopic folding bicycle 1000 needs to be switched from the unfolded state to the folded state, the first tube 111 is operated to be switched from the third position to the fourth position, and the first portion 12 is operated to be switched from the first position to the second position, so that the volume of the telescopic folding bicycle 1000 when folded is further reduced, and the telescopic folding bicycle is convenient to store.

In other embodiments, the first tube 111 and the second tube 112 may be hinged to switch the telescopic foldable bicycle between the unfolded state and the folded state.

In one embodiment, the second tube 112 is sleeved in the first tube 111, and the first portion 12 is sleeved in the second tube 112. In order to avoid the abrasion of the pipes during the expansion process, the main beam pipe 10 further includes a first bushing and a second bushing, wherein the first bushing is disposed between the first pipe 111 and the second pipe 112, and the second bushing is disposed between the first portion 12 and the second pipe 112. Specifically, the first bushing is fixedly connected to the first tube 111, and the second bushing is fixedly connected to the second tube 112.

It is conceivable that, in the present embodiment, the main beam pipe 10 includes three parts (the first pipe body 111, the second pipe body 112, and the first part 12) that are sleeved with each other, but in other embodiments, the number of the main beam pipes 10 that are sleeved with each other is not limited.

In some embodiments, the telescopic folding bicycle 1000 further includes a first quick release member mounted on the second tubular body 112 for locking or unlocking the connection of the second tubular body 112 to the first portion 12. Specifically, referring to fig. 1 and 2, the second tube 112 includes a main body 1121 and a mounting portion 1122 that are connected to each other, the main body 1121 is connected to the first tube 111 and the first portion 12, the mounting portion 1122 is connected to the main body 1121, and the telescopic folding bicycle 1000 further includes a pedal 500 and a sprocket 600, both of which are mounted on the mounting portion 1122, the pedal 500 and the sprocket 600. The mounting portion 1122 has a first deformation slit 1123, and the first quick release includes a first penetrating portion and a first operating handle 401, the first penetrating portion penetrating the first deformation slit 1123, and the first operating handle 401 being connected to the first penetrating portion. By operating the first operating handle 401, the size of the first deforming slit 1123 can be changed, thereby locking or unlocking the second tube 112 with the first portion 12.

The telescopic folding bicycle 1000 further comprises a second quick release member, which is mounted on the first tube 111, and is used for locking or unlocking the first tube 111 and the second tube 112. The first pipe body 111 has a second deformation slit 1111, and the second quick release member includes a second penetrating portion and a second operating handle 701, where the second penetrating portion is penetrating through the second deformation slit 1111, and the second operating handle 701 is connected to the second penetrating portion. By operating the second operating handle 701, the size of the second deforming slit 1111 can be changed, thereby locking or unlocking the first tube 111 and the second tube 112.

In some embodiments, referring to fig. 1 and 3, the frame 100 further includes a support bar 40, the support bar 40 includes a first support portion 41 and a second support portion 42, the first support portion 41 is connected to the rear fork 30, the second support portion 42 is connected to the mounting portion 1122, and the first support portion 41 is hinged to the second support portion 42. Referring to fig. 1, when the telescopic folding bicycle 1000 is in an unfolded state, the first supporting portion 41 and the second supporting portion 42 are connected and supported between the rear fork 30 and the mounting portion 1122 to play a role in supporting the telescopic folding bicycle 1000. Referring to fig. 4 and 5, when the telescopic folding bicycle 1000 is in a folded state, the first support portion 41 and the second support portion 42 are rotated to fold so as to facilitate the storage of the telescopic folding bicycle 1000.

Further, referring to fig. 3, the support rod 40 further includes a screwing portion 43, a side of the first support portion 41 and a side of the second support portion 42 facing each other are provided with a engaging portion 44, and the screwing portion 43 is disposed through the first support portion 41 and the second support portion 42. When the telescopic folding bicycle 1000 is in the unfolded state, the first supporting portion 41 is engaged with the engaging portion 44 of the second supporting portion 42, and the screwing portion 43 fixes the first supporting portion 41 and the second supporting portion 42; when the telescopic folding bicycle 1000 is switched from the unfolded state to the folded state, the screwing part 43 is screwed, and a gap is provided between the first supporting part 41 and the second supporting part 42. The first support portion 41 and the second support portion 42 are operated such that the engaging portions 44 of the two are separated and the two are relatively rotated to complete the storage.

The screwing portion 43 is inserted into the first supporting portion 41 through the second supporting portion 42, and is screwed to the first supporting portion 41. When the telescopic folding bicycle 1000 does not need to be folded, the screwing part 43 is screwed with the first supporting part 41; when the telescopic folding bicycle 1000 needs to be folded, the screwing part 43 is screwed to enable a gap to be formed between the first supporting part 41 and the second supporting part 42, and then the external force is applied to enable the engaging part 44 of the first supporting part 41 and the engaging part 44 of the second supporting part 42 to be separated, so that the first supporting part 41 and the second supporting part 42 can be operated to rotate relatively to fold.

In some embodiments, referring to FIG. 1, frame 100 further includes a standpipe 50 and a rear seat 60, and folding bicycle 1000 further includes a saddle 800, saddle 800 being mounted on standpipe 50, rear seat 60 and rear fork 30 being connected to first tube 111. When the telescopic folding bicycle 1000 is in the unfolded state, the standpipe 50 penetrates the first part 12 and the second pipe 112, so that the first part 12 and the second pipe 112 can be fixed conveniently. Referring to fig. 6 and 7, when the folding telescopic bicycle 1000 is in a folded state, the standpipe 50 is detached from the second tube 112 and the first part 12 and mounted on the rear seat 60.

Specifically, second tube 112 is provided with an assembly portion 1124, and third quick disconnect 70 is provided on assembly portion 1124, such that when standpipe 50 is threaded onto assembly portion 1124, third quick disconnect 70 is capable of locking standpipe 50, and at the same time, third quick disconnect 70 is provided to facilitate removal of standpipe 50. More specifically, when the telescopic folding bicycle 1000 is in a folded state, in order to facilitate placement of the standpipe 50, a snap ring 61 is provided on the rear saddle 60, and the standpipe 50 is fastened by the snap ring 61.

In some embodiments, referring to FIG. 1, the frame 100 further includes a stand pipe 80 and the telescopic folding bicycle 1000 further includes a handlebar 900. The first portion 12 includes a first connecting portion 121, a first folder 122 and a second connecting portion 123, the first connecting portion 121 is sleeved with the second pipe body 112, the second connecting portion 123 is connected with the first connecting portion 121 through the first folder 122, specifically, the second connecting portion 123 is hinged with the first connecting portion 121 through the first folder 122, and the front fork 20 and the stand pipe 80 are both mounted on the second connecting portion 123. When the telescopic folding bicycle 1000 is in the folded state, the second connecting portion 123 is folded with the first connecting portion 121 by the second folder 82. That is, when the telescopic folding bicycle 1000 is folded, the first portion 12 can be folded by itself, so as to further reduce the volume of the telescopic folding bicycle 1000, and facilitate storage.

Referring to fig. 2, the stand pipe 80 includes a third connection portion 81, a second folder 82, and a fourth connection portion 83, the third connection portion 81 is connected to the second connection portion 123, the fourth connection portion 83 is connected to the third connection portion 81 through the second folder 82, specifically, the fourth connection portion 83 is hinged to the third connection portion 81 through the second folder 82, and the handlebar 900 is mounted on the fourth connection portion 83. When the telescopic folding bicycle 1000 is in the folded state, the fourth connecting portion 83 is folded with the third connecting portion 81 through the second folder 82, so that the handlebar 900 is folded, and the volume of the telescopic folding bicycle 1000 when folded is further reduced.

Further, referring to fig. 5 and 7, when the telescopic folding bicycle 1000 is in a folded state, the front wheel 200 and the rear wheel 300 are coaxially disposed, and the handlebar 900 and the saddle 800 are clamped between the front wheel 200 and the rear wheel 300, so that the telescopic folding bicycle 1000 has a smaller volume when folded.

In some embodiments, the folding bicycle 1000 further includes a universal wheel assembly 1100, the universal wheel assembly 1100 being coupled to either the first portion 12 or the second portion 11. Specifically, the universal wheel assembly 1100 is coupled to the mounting portion 1122 to be switchable between a fifth position and a sixth position with respect to the mounting portion 1122 to be capable of supporting the telescopic folding bicycle 1000 in contact with the ground or being separated from the ground. In this manner, when the telescopic folding bicycle 1000 is in the folded state, the universal wheel assembly 1100 is operated to switch from the sixth position to the fifth position to contact the ground, facilitating movement of the telescopic folding bicycle 1000 by means of the universal wheel assembly 1100. When the telescopic folding bicycle 1000 is in the unfolded state, the universal wheel assembly 1100 is operated to switch from the sixth position to the fifth position, and at this time, the universal wheel assembly 1100 is not in contact with the ground, so that normal running of the telescopic folding bicycle 1000 is not disturbed.

The telescopic folding bicycle 1000 provided in the embodiment of the present invention may adopt the following operation modes when switching from the unfolded state to the folded state:

the third quick release 70 is operated to remove the standpipe 50 and saddle 800, and the standpipe 50 is snapped into the snap ring 61 on the rear seat 60. The first quick release member, the second quick release member, and the screwing part 43 are operated such that the second pipe body 112 is contracted inside the first pipe body 111, and the first connection part 121 is contracted inside the second pipe body 112. The first folder 122 and the second folder 82 are operated such that the handle bar 900 is folded with the front wheel 200.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A telescopic folding bicycle, the telescopic folding bicycle comprising:

the vehicle frame (100) comprises a main beam pipe (10), a front fork (20) and a rear fork (30), and is characterized in that the main beam pipe (10) comprises a first part (12) and a second part (11) which are sleeved with each other, the front fork (20) is connected with the first part (12), the rear fork (30) is connected with the second part (11), the front fork (20) is used for assembling a front wheel (200), and the rear fork (30) is used for assembling a rear wheel (300); the first part (12) comprises a first connecting part (121), a first folder (122) and a second connecting part (123), the first connecting part (121) is sleeved with the second part (11), the second connecting part (123) is connected with the first connecting part (121) through the first folder (122), and the front fork (20) is connected with the second connecting part (123);

wherein the first portion (12) is switchable relative to the second portion (11) between a first position of forward extension and a second position of rearward retraction, so as to switch the telescopic folding bicycle between an unfolded state and a folded state.

2. The telescopic folding bicycle according to claim 1, characterized in that the second portion (11) comprises a first tube (111) and a second tube (112) that are mutually sleeved, the rear fork (30) being connected to the first tube (111), the first connection (121) being sleeved with the second tube (112);

wherein the first tubular body (111) is switchable relative to the second tubular body (112) between a third position of rearward extension and a fourth position of forward retraction, so as to switch the telescopic folding bicycle between the unfolded state and the folded state; or the first tube body (111) is hinged to the second tube body (112) so that the telescopic folding bicycle is switched between the unfolded state and the folded state.

3. The telescopic folding bicycle according to claim 2, wherein the second tube (112) comprises a main body (1121) and a mounting portion (1122), the main body (1121) being connected to the first portion (12) and the first tube (111), the mounting portion (1122) being connected to the main body (1121) and being adapted to mount a pedal (500); the frame (100) further comprises a support rod (40), the support rod (40) comprises a first support part (41) and a second support part (42), the first support part (41) is connected with the rear fork (30), the second support part (42) is connected with the mounting part (1122), and the first support part (41) is hinged with the second support part (42);

when the telescopic folding bicycle is in the unfolding state, the first supporting part (41) is connected with the second supporting part (42) and is supported and arranged between the rear fork (30) and the mounting part (1122); when the telescopic folding bicycle is in the folded state, the first supporting portion (41) and the second supporting portion (42) are folded in a rotating mode.

4. A telescopic folding bicycle according to claim 3, characterized in that the support bar (40) further comprises a screwing part (43), the first support part (41) and the second support part (42) being provided with a snap-in part (44) on the side facing each other, the screwing part (43) being threaded through the first support part (41) and the second support part (42);

when the telescopic folding bicycle is in the unfolding state, the first supporting part (41) is meshed with the meshing part (44) of the second supporting part (42), and the screwing part (43) is used for fixing the first supporting part (41) and the second supporting part (42); when the telescopic folding bicycle is switched from the unfolded state to the folded state, the screwing part (43) is screwed, and the first supporting part (41) and the engagement part (44) of the second supporting part (42) are operated to be separated and relatively rotated.

5. The telescopic folding bicycle according to claim 1, characterized in that the frame (100) further comprises a standpipe (50) and a rear saddle (60), the standpipe (50) being intended for mounting a saddle (800), the rear saddle (60) and the rear fork (30) being connected to the second portion (11);

when the telescopic folding bicycle is in the unfolding state, the vertical pipe (50) is arranged on the first part (12) and the second part (11) in a penetrating way; when the telescopic folding bicycle is in the folded state, the standpipe (50) is detached from the first part (12) and the second part (11) and is mounted on the rear saddle (60).

6. The telescopic folding bicycle according to claim 1, wherein the frame (100) further comprises a stand pipe (80), the stand pipe (80) being for mounting a handlebar (900), the stand pipe (80) being mounted on the second connection (123).

7. The telescopic folding bicycle according to claim 6, wherein the stand (80) comprises a third connection portion (81), a second folder (82) and a fourth connection portion (83), the third connection portion (81) being connected to the second connection portion (123), the fourth connection portion (83) being connected to the third connection portion (81) through the second folder (82) and being used for mounting a handlebar (900);

when the telescopic folding bicycle is in the folded state, the fourth connecting portion (83) is folded with the third connecting portion (81) through the second folder (82).

8. The telescopic folding bicycle according to claim 6, further comprising a front wheel (200) and a rear wheel (300), the front wheel (200) being mounted on the front fork (20), the rear wheel (300) being mounted on the rear fork (30);

when the telescopic folding bicycle is in the folded state, the front wheel (200) and the rear wheel (300) are coaxially arranged, and the handlebar (900) is clamped between the front wheel (200) and the rear wheel (300).

9. The telescopic folding bicycle according to claim 1, further comprising a first quick-release member mounted on one of the first portion (12) and the second portion (11) externally sleeved; the first quick release is used for locking or unlocking the connection of the first part (12) and the second part (11).

10. The telescopic folding bicycle according to claim 1, further comprising a universal wheel assembly (1100), the universal wheel assembly (1100) being connected to the first portion (12) or the second portion (11) and being movable relative to the frame (100) to switch between a fifth position and a sixth position to enable contact with or separation from the ground to support the telescopic folding bicycle.