CN220181013U

CN220181013U - Detachable bicycle based on mortise and tenon structure

Info

Publication number: CN220181013U
Application number: CN202320733973.0U
Authority: CN
Inventors: 曹雨洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-12-15
Anticipated expiration: 2033-04-04

Abstract

The utility model relates to a detachable bicycle based on a mortise and tenon structure, which comprises a handlebar assembly, a front fork assembly, a cross beam assembly, a back beam assembly, a seat assembly and a pedal assembly which are mutually and detachably connected, wherein the handlebar assembly comprises a handlebar center shaft, and a left handlebar and a right handlebar which are respectively hinged at one end of the handlebar center shaft. One side of the front fork component is provided with a handle sleeve, a containing cavity is arranged in the handle sleeve, the handle component is telescopically arranged in the containing cavity, and the other side of the front fork component is rotationally connected with a front wheel. The detachable bicycle based on the mortise and tenon structure provided by the utility model has the advantages that welding is omitted on the whole, the traditional Luban lock structure is changed, the detachable bicycle is convenient to detach and assemble, the structure is simple, the operation is convenient, the difficulty of loading/unloading of a customer is reduced, and in addition, the technical difficulty of production and processing is reduced only by traditional casting and linear machining.

Description

Detachable bicycle based on mortise and tenon structure

Technical Field

The utility model relates to the technical field of bicycle structural design, in particular to a detachable bicycle based on a mortise and tenon structure.

Background

As people pursue green travel more, and from the point of portability, folding bicycles have been developed and developed rapidly. In the existing folding bicycle market, people often go through the form of online shopping, and the whole bicycle is directly sent out when in online shopping delivery, however, the bicycle body is damaged due to collision in the delivery process; some vehicles are completely disassembled, packaged and shipped, however, most people have limited first loading technology, the self-assembled vehicles are easy to have quality problems, and the subsequent customer service communication and goods returning cost is high.

In addition, when the folding bicycle is actually used, a consumer generally does not need to fully fold/unfold the bicycle after riding each time, more luggage is packed during moving or vacation, and the luggage is transported for a long distance by means of a paper box of an express or moving company, and for the existing folding bicycle type, the whole bicycle is fully folded/disassembled or unfolded/assembled again, and the damage to the bicycle is easy to cause the problem of the quality of the bicycle, so that the normal use is affected.

In particular, the stability of the whole frame is based on whether the welding of structures such as front forks, rear forks, cross beams and the like of several parts of the frame is firm. Some vehicle types have hidden danger in the aspect of the overall stability of the vehicle frame, because the welding is easy to generate false welding or forced welding with too large error. Therefore, most of high-end vehicles with high price and low-end vehicles with unstable quality are caused in the market of the existing folding bicycles, and a product with high quality and low price is difficult to produce, so that popularization and development of the folding bicycles are influenced.

Disclosure of Invention

Based on this, it is necessary to provide a detachable bicycle based on mortise and tenon structure, the welding has been exempted on the whole, changes traditional luban lock structure into, conveniently dismantles and use with the equipment, simple structure, convenient operation have reduced the degree of difficulty that the consumer loaded/dismantled the car, and in addition, only need traditional casting and sharp machining, reduced the technical difficulty of production and processing.

The technical scheme is as follows:

in one aspect, a detachable bicycle based on mortise and tenon structure is provided, includes:

the handle bar assembly comprises a handle bar center shaft, a left handle bar and a right handle bar which are respectively hinged to one end of the handle bar center shaft;

the front fork assembly is characterized in that a handle sleeve is arranged on one side of the front fork assembly, a containing cavity is formed in the handle sleeve, the handle assembly is arranged in the containing cavity in a telescopic mode, and a front wheel is connected to the other side of the front fork assembly in a rotating mode;

the front fork assembly comprises a front fork assembly, a front fork assembly and a rear fork assembly, wherein one end of the front fork assembly is detachably connected with the front fork assembly, and a first cross beam clamping part is arranged at the other end of the front fork assembly;

the rear beam assembly comprises a rear beam bracket, one end of the rear beam bracket is provided with a rear Liang Kajie part which is clamped with the first cross beam clamping part, and the other end of the rear beam bracket is provided with a rear beam connecting part which is used for being connected with a rear wheel;

the seat assembly comprises a seat support, one end of the seat support is provided with a seat clamping part which is respectively clamped with the first beam clamping part and the rear Liang Kajie part to form a Luban lock structure, and the other end of the seat support is provided with a seat connecting part which is connected with the rear beam connecting part;

the pedal assembly is detachably mounted on the seat support.

The technical scheme is further described as follows:

in one embodiment, a first hinge part is arranged at one end of the handlebar center shaft, a second hinge part and a third hinge part are respectively arranged on the left handlebar and the right handlebar, and a first connecting hole, a second connecting hole and a third connecting hole for a fastener to pass through and fix are respectively arranged on the first hinge part, the second hinge part and the third hinge part.

In one embodiment, the beam assembly comprises an auxiliary fixing upright post and a beam bracket which are detachably connected with each other, one end of the auxiliary fixing upright post is provided with a first auxiliary clamping part which is detachably connected with the front fork assembly, the other end of the auxiliary fixing upright post is provided with a second auxiliary clamping part, and the beam bracket is provided with a second beam clamping part which is clamped with the second auxiliary clamping part; one end of the beam support is provided with the first beam clamping part, and the other end of the beam support is provided with a third beam clamping part detachably connected with the front fork assembly.

In one embodiment, the beam assembly further comprises a front fender, and the front fender is provided with a baffle clamping part which is respectively clamped with the second auxiliary clamping part and the second beam clamping part to form a luban lock structure.

In one embodiment, a first clamping groove and a second clamping groove are formed in the outer side of the handlebar sleeve, the first auxiliary clamping portion is clamped with the first clamping groove, and the third cross beam clamping portion is clamped with the second clamping groove.

In one embodiment, the seat support is bent, and the seat support and the back beam support are integrally triangular.

In one embodiment, the seat assembly further comprises a seat member comprising a seat body and a seat post detachably connected to the seat support.

In one embodiment, one end of the seat support is provided with a seat sleeve, and the seat support rod is detachably arranged in the seat sleeve in a telescopic mode.

In one embodiment, the pedal assembly comprises a connecting rotating shaft, the connecting rotating shaft is rotatably arranged on the seat support, a chain gear is arranged on the connecting rotating shaft, pedal rods are respectively arranged at two ends of the connecting rotating shaft, and pedal plates are arranged on the pedal rods.

In one embodiment, the seat support includes a left seat frame and a right seat frame, the left seat frame and the right seat frame being asymmetrically disposed.

The utility model has the beneficial effects that:

compared with the prior art, the detachable bicycle based on the mortise and tenon structure has the advantages that the whole bicycle body structure adopts a detachable assembly mode, and the basic structures of the bicycle body such as the handlebar assembly, the front fork assembly, the beam assembly, the back beam assembly, the seat assembly and the pedal assembly are clamped in a detachable mode to form the bicycle body of the whole bicycle. By eliminating welding on the whole, the traditional Luban lock structure is changed, so that the device is convenient to disassemble and assemble, has a simple structure and is convenient to operate, and the difficulty of loading/unloading of consumers is reduced. Moreover, as welding is omitted on the vehicle body connection, only traditional casting and linear machining are needed when production and machining are carried out, and the technical difficulty and cost of production and machining are reduced. Meanwhile, the small factories and the small workshops can also carry out corresponding processing production, which is beneficial to reducing the overall production and retail price of the folding bicycle and promoting and developing the folding bicycle.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a detachable bicycle based on a mortise and tenon structure in embodiment 1;

FIG. 2 is a schematic view of a handlebar assembly of embodiment 1;

FIG. 3 is a schematic view of the front fork assembly of embodiment 1;

FIG. 4 is a schematic view showing the structure of a beam assembly in embodiment 1;

FIG. 5 is a schematic view showing the connection structure of the cross member assembly, the back member assembly and the seat assembly in embodiment 1;

FIG. 6 is a schematic view of the seat assembly of embodiment 1;

FIG. 7 is a schematic view of the pedal assembly of embodiment 1;

fig. 8 is a schematic view showing a storage state structure after disassembly in embodiment 1;

fig. 9 is a schematic structural view of a detachable bicycle based on a mortise and tenon structure in embodiment 2.

Reference numerals illustrate:

100. a handle bar assembly; 110. a handlebar center shaft; 111. a first hinge part; 112. a first connection hole; 120. a left handle bar; 121. a second hinge part; 122. a second connection hole; 130. a right handle bar; 131. a third hinge; 132. a third connection hole; 140. a fixing member; 200. a front fork assembly; 210. a handle sleeve; 211. a receiving chamber; 212. a first clamping groove; 213. a second clamping groove; 300. a beam assembly; 310a, left upright; 310b, right upright; 311a, a first auxiliary left joint; 311b, a first auxiliary right joint; 312a, a second auxiliary left joint; 312b, a second auxiliary right joint; 320a, left cross frame; 320b, right cross frame; 321. a first beam clamping part; 322. a second beam clamping part; 323. a third beam clamping part; 330. a front fender; 330a, left baffle; 330b, right baffle; 331a, a left catch clamping part; 331b, right stop clamping part; 400. a back beam assembly; 411. a rear beam left frame; 412. a rear beam right frame; 421. a rear beam left joint part; 422. a rear beam right joint; 431. a rear Liang Zuolian part; 432. a rear beam right connecting part; 500. a seat assembly; 510. a seat support; 511. a left seat frame; 512. a right seat frame; 513. a seat sleeve; 521. a seat left joint; 522. a right joint of the seat; 531. a left connecting part of the seat; 532. a right connecting part of the seat; 540. a seat member; 541. a seat body; 542. a seat strut; 600. a pedal assembly; 610. the connecting rotating shaft; 620. a chain gear; 630. a pedal lever; 640. a pedal plate; 710. a front wheel; 720. and a rear wheel.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model 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 utility model. The present utility model 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 utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "inner", "outer", "upper", "lower", "horizontal", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth," and the like are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "abutted," 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

As shown in fig. 1 to 8, in one embodiment, a detachable bicycle based on a mortise and tenon structure is provided, which includes a handle bar assembly 100, a front fork assembly 200, a cross member assembly 300, a rear beam assembly 400, a seat assembly 500, and a pedal assembly 600, and the handle bar assembly 100 includes a handle bar center shaft 110, and left and right handle bars 120 and 130 respectively hinged at one ends of the handle bar center shaft 110. One side of the front fork assembly 200 is provided with a handle sleeve 210, a containing cavity 211 is arranged in the handle sleeve 210, the handle assembly 100 is telescopically arranged in the containing cavity 211, and the other side of the front fork assembly 200 is rotatably connected with a front wheel 710. One end of the beam assembly 300 is detachably connected to the front fork assembly 200, and the other end of the beam assembly 300 is provided with a first beam clamping portion 321. The back beam assembly 400 comprises a back beam bracket, one end of the back beam bracket is provided with a back Liang Kajie part which is clamped with the first beam clamping part 321, and the other end of the back beam bracket is provided with a back beam connecting part which is used for being rotationally connected with the back wheel 720. The seat assembly 500 includes a seat support 510, one end of the seat support 510 is provided with a seat clamping portion respectively clamped with a first beam clamping portion 321 and a rear Liang Kajie portion to form a luban lock structure, and the other end of the seat support 510 is provided with a seat connecting portion connected with a rear beam connecting portion. The footrest assembly 600 is removably mounted to the seat bracket 510.

In this embodiment, the whole vehicle body structure adopts a detachable assembly mode, and the basic structures of the vehicle body such as the handlebar assembly 100, the front fork assembly 200, the cross beam assembly 300, the rear beam assembly 400, the seat assembly 500, the pedal assembly 600 and the like are clamped in a detachable mode to form the vehicle body of the whole vehicle. By eliminating welding on the whole, the traditional Luban lock structure is changed, so that the device is convenient to disassemble and assemble, has a simple structure and is convenient to operate, and the difficulty of loading/unloading of consumers is reduced. Moreover, as welding is omitted on the vehicle body connection, only traditional casting and linear machining are needed when production and machining are carried out, and the technical difficulty and cost of production and machining are reduced. Meanwhile, the small factories and the small workshops can also carry out corresponding processing production, which is beneficial to reducing the overall production and retail price of the folding bicycle and promoting and developing the folding bicycle.

In practical application, the detachable frame based on the Luban lock structure can be conveniently placed in a common express carton or trunk after being detached through reasonable layout in the design stage, and is convenient to transport and carry for a long distance.

In one embodiment, a first hinge portion 111 is provided at one end of the handlebar middle shaft 110, a second hinge portion 121 and a third hinge portion 131 are provided on the left handlebar 120 and the right handlebar 130, respectively, and a first connecting hole 112, a second connecting hole 122 and a third connecting hole 132 for a fastener to pass through and fix are provided on the first hinge portion 111, the second hinge portion 121 and the third hinge portion 131, respectively. Specifically, the fixing member 140 may be a fixing member such as a fixing pin, or other fixing member 140 structures, so long as the hinged fixing of the handlebar middle shaft 110, the left handlebar 120 and the right handlebar 130 can be satisfied, and such a design falls within the protection scope of the present utility model.

In one embodiment, the beam assembly 300 includes an auxiliary fixing upright and a beam bracket that are detachably connected to each other, one end of the auxiliary fixing upright is provided with a first auxiliary clamping portion that is detachably connected to the front fork assembly 200, the other end of the auxiliary fixing upright is provided with a second auxiliary clamping portion, and the beam bracket is provided with a second beam clamping portion 322 that is clamped with the second auxiliary clamping portion; one end of the beam bracket is provided with a first beam clamping part 321, and the other end of the beam bracket is provided with a third beam clamping part 323 which is detachably connected with the front fork assembly 200.

Specifically, the auxiliary fixing upright post comprises a left upright post 310a and a right upright post 310b, the first auxiliary clamping part comprises a first auxiliary left connecting part 311a and a first auxiliary right connecting part 311b, the second auxiliary clamping part comprises a second auxiliary left connecting part 312a and a second auxiliary right connecting part 312b, the left upright post 310a and the right upright post 310b are combined to form an integral auxiliary fixing upright post through a Luban lock structure of the integral frame, and the integral body can be kept stable under the premise of not needing welding operation through the Luban lock.

Further, the beam bracket includes a left beam 320a and a right beam 320b, the first beam clamping portion 321 includes a first left frame clamping portion and a first right frame clamping portion, the second beam clamping portion 322 includes a second left frame clamping portion and a second right frame clamping portion, and the third beam clamping portion 323 includes a third left frame clamping portion and a third right frame clamping portion.

In one embodiment, the beam assembly 300 further includes a front fender 330, and the front fender 330 is provided with a baffle clamping portion respectively clamped with the second auxiliary clamping portion and the second beam clamping portion 322 to form a luban lock structure. Specifically, the front fender 330 includes a left fender 330a and a right fender 330b, and the fender engagement portion includes a left fender engagement portion 331a and a right fender engagement portion 331b.

In one embodiment, the outer side of the handlebar sleeve 210 is provided with a first clamping groove 212 and a second clamping groove 213, the first auxiliary clamping portion is clamped with the first clamping groove 212, and the third beam clamping portion 323 is clamped with the second clamping groove 213. Thereby making the front fork assembly 200 firmly coupled with the cross member assembly 300. Further improving the stability of the whole vehicle body.

In one embodiment, the seat support 510 is bent, and the seat support 510 and the back beam support are integrally triangular, so that after each component is detached, the components can be stacked to be integrally triangular, and on the premise of ensuring that the volume is reduced as much as possible, the components can be ensured to maintain relative stability after being detached and packaged, thereby being beneficial to reducing the risk of damage in the transportation process.

In one embodiment, the seat assembly 500 further includes a seat member 540, the seat member 540 including a seat body 541 and a seat post 542, the seat post 542 being removably coupled to the seat bracket 510. Specifically, the seat body 541 and the seat support bar 542 are also detachably connected, so that the disassembly, the subsequent replacement, and the like are facilitated.

In one embodiment, seat support 510 is provided with a seat sleeve 513 at one end, and seat struts 542 are removably telescopically disposed within seat sleeve 513. Specifically, the seat bracket 510 includes a seat left frame 511 and a seat right frame 512, the seat clamping portion includes a seat left joint 521 and a seat right joint 522, and the seat connecting portion includes a seat left connecting portion 531 and a seat right connecting portion 532. Correspondingly, the rear beam bracket includes a rear beam left frame 411 and a rear beam right frame 412, the rear beam clamping portion includes a rear beam left connecting portion 421 and a rear beam right connecting portion 422, and the rear beam connecting portion includes a rear Liang Zuolian portion 431 and a rear beam right connecting portion 432.

In one embodiment, the pedal assembly 600 includes a connection shaft 610, the connection shaft 610 is rotatably disposed on the seat support 510, a chain gear 620 is disposed on the connection shaft 610, pedal rods 630 are respectively disposed at two ends of the connection shaft 610, and pedal plates 640 are disposed on the pedal rods 630.

Example 2

As shown in fig. 9, in the present embodiment, the seat support 510 includes a seat left frame 511 and a seat right frame 512, and the seat left frame 511 and the seat right frame 512 are asymmetrically arranged. Because the pedal assembly 600 needs to be disposed between the left seat frame 511 and the right seat frame 512, the left seat frame 511 and the right seat frame 512 need to be designed with a position where the pedal assembly 600 is mounted in between when being mounted, and interference is easily generated when the pedal assembly 600 is simultaneously mounted and connected with the left seat frame 511 and the right seat frame 512 in the actual mounting process, which is inconvenient for mounting. Therefore, the asymmetric design of the left seat frame 511 and the right seat frame 512 is adopted in the embodiment, and the pedal assembly 600 only needs to be installed on the right seat frame 512, so that the assembly and the disassembly are simpler and more convenient, and the assembly interference can be effectively avoided.

In this embodiment, other structures than the above-described distinguishing structures are the same as those of embodiment 1, and will not be described here again.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. 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 utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. Detachable bicycle based on mortise and tenon structure, its characterized in that includes:

a handle bar assembly (100), wherein the handle bar assembly (100) comprises a handle bar center shaft (110), a left handle bar (120) and a right handle bar (130) which are respectively hinged at one end of the handle bar center shaft (110);

the front fork assembly (200), one side of the front fork assembly (200) is provided with a handle sleeve (210), an accommodating cavity (211) is arranged in the handle sleeve (210), the handle assembly (100) is arranged in the accommodating cavity (211) in a telescopic manner, and the other side of the front fork assembly (200) is rotationally connected with a front wheel (710);

the front fork assembly comprises a beam assembly (300), wherein one end of the beam assembly (300) is detachably connected to the front fork assembly (200), and a first beam clamping part (321) is arranged at the other end of the beam assembly (300);

the rear beam assembly (400), the rear beam assembly (400) comprises a rear beam bracket, one end of the rear beam bracket is provided with a rear Liang Kajie part which is clamped with the first cross beam clamping part (321), and the other end of the rear beam bracket is provided with a rear beam connecting part which is used for being rotationally connected with a rear wheel (720);

the seat assembly (500), the seat assembly (500) comprises a seat support (510), one end of the seat support (510) is provided with a seat clamping part which is respectively clamped with the first beam clamping part (321) and the rear Liang Kajie part to form a Luban lock structure, and the other end of the seat support (510) is provided with a seat connecting part connected with the rear beam connecting part;

a footrest assembly (600), the footrest assembly (600) being removably mounted to the seat support (510).

2. The detachable bicycle based on the mortise and tenon structure according to claim 1, wherein a first hinge portion (111) is arranged at one end of the handlebar middle shaft (110), a second hinge portion (121) and a third hinge portion (131) are respectively arranged on the left handlebar (120) and the right handlebar (130), and a first connecting hole (112), a second connecting hole (122) and a third connecting hole (132) for a fastener to pass through are respectively arranged on the first hinge portion (111), the second hinge portion (121) and the third hinge portion (131).

3. The detachable bicycle based on the mortise and tenon joint structure according to claim 1, wherein the beam assembly (300) comprises an auxiliary fixing upright post and a beam bracket which are detachably connected with each other, one end of the auxiliary fixing upright post is provided with a first auxiliary clamping part which is detachably connected with the front fork assembly (200), the other end of the auxiliary fixing upright post is provided with a second auxiliary clamping part, and the beam bracket is provided with a second beam clamping part (322) which is clamped with the second auxiliary clamping part; one end of the beam support is provided with a first beam clamping part (321), and the other end of the beam support is provided with a third beam clamping part (323) which is detachably connected with the front fork assembly (200).

4. The detachable bicycle based on the mortise and tenon joint structure according to claim 3, wherein the beam assembly (300) further comprises a front fender (330), and the front fender (330) is provided with a baffle clamping part which is respectively clamped with the second auxiliary clamping part and the second beam clamping part (322) to form a luban lock structure.

5. A detachable bicycle based on a mortise and tenon joint structure according to claim 3, characterized in that, a first clamping groove (212) and a second clamping groove (213) are arranged on the outer side of the handlebar sleeve (210), the first auxiliary clamping part is clamped with the first clamping groove (212), and the third beam clamping part (323) is clamped with the second clamping groove (213).

6. The detachable bicycle based on the mortise and tenon joint structure according to claim 1, wherein the seat support (510) is bent, and the seat support (510) and the back beam support are integrally in a triangular structure.

7. The detachable bicycle based on the mortise and tenon joint structure according to claim 1, wherein the seat assembly (500) further comprises a seat member (540), the seat member (540) comprises a seat body (541) and a seat strut (542), and the seat strut (542) is detachably connected with the seat bracket (510).

8. The detachable bicycle based on the mortise and tenon joint structure according to claim 7, wherein a seat sleeve (513) is arranged at one end of the seat support (510), and the seat support rod (542) is detachably and telescopically arranged in the seat sleeve (513).

9. The detachable bicycle based on the mortise and tenon joint structure according to claim 1, wherein the pedal assembly (600) comprises a connecting rotating shaft (610), the connecting rotating shaft (610) is rotatably arranged on the seat support (510), a chain gear (620) is arranged on the connecting rotating shaft (610), pedal rods (630) are respectively arranged at two ends of the connecting rotating shaft (610), and pedal plates (640) are arranged on the pedal rods (630).

10. The detachable bicycle based on the mortise and tenon joint structure according to any one of claims 1 to 9, characterized in that the seat support (510) comprises a seat left frame (511) and a seat right frame (512), and the seat left frame (511) and the seat right frame (512) are asymmetrically arranged.