CN218477593U

CN218477593U - Multifunctional folding bicycle frame

Info

Publication number: CN218477593U
Application number: CN202222496401.3U
Authority: CN
Inventors: 张家钟
Original assignee: Baolineng Xiamen New Energy Co ltd
Current assignee: Baolineng Xiamen New Energy Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-02-14
Anticipated expiration: 2032-09-21

Abstract

The utility model provides a multi-functional folding bicycle frame, be responsible for, head tube, seat pipe including the frame, the head tube sets up the front end that the frame was responsible for, the seat pipe set up in the rear side that the frame was responsible for, seat pipe rear side bilateral symmetry is provided with the back vent support, the back vent support is lambda type, the front portion of back vent support with seat pipe swing joint, the rear portion of back vent support is used for installing the shaft, be provided with horizontal bumper shock absorber between the top of back vent support and the seat pipe. Through special figurative back fork support, replaced the mode that traditional bumper shock absorber needs the installation of pushing up on vertical, made and transversely to install the bumper shock absorber between back fork support and the back seat pipe, the top that back fork support top surpassed the wheel can only install single bumper shock absorber, can reduce the volume of frame like this, reduces purchasing cost simultaneously, simple structure is practical.

Description

Multifunctional folding bicycle frame

Technical Field

The utility model relates to an electric bicycle technical field, especially a multi-functional folding bicycle frame.

Background

With the beginning of drunken driving into the criminals in China, people put more and more importance on safety, and further the rise of the driving industry of generations is promoted. The automobile has the requirement of cost for the passenger, and the special characteristic of the passenger is that the passenger can be conveniently put into a car trunk for carrying and use if the passenger is short, narrow and small. The traditional rear fork bracket mounting shock absorber for driving generation is mounted upwards. The two parts are usually installed upwards and upwards, and the design of being wide and big cannot meet the requirements of small volume and short wheelbase for the designated driving, and the occupied space is still larger; therefore, in order to further improve portability, many manufacturers can only give up the scheme of mounting the shock absorber on the rear fork bracket, but the scheme designed by the mode is uncomfortable to ride instead of driving, and the front fork and the rear fork are rigidly connected, so that the risk of frame breakage exists when a user rides on a road section with poor road conditions.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims at providing a multifunctional folding bicycle frame, through the back vent support that sets up special shape, the bumper shock absorber that can transversely install small-size is horizontal, accomplishes occuping of the damped while reduction space, and non-rigid connection effectively avoids the frame fracture.

The utility model discloses a following method realizes: the utility model provides a multi-functional folding bicycle frame, includes that the frame is responsible for, head pipe, seat pipe, the head pipe sets up the front end that the frame is responsible for, the seat pipe set up in the rear side that the frame is responsible for, seat pipe rear side bilateral symmetry is provided with the back vent support, the back vent support is the lambda type, the front portion of back vent support with seat pipe swing joint, the rear portion of back vent support is used for installing the shaft, be provided with horizontal bumper shock absorber between the top of back vent support and the seat pipe.

Preferably, the rear fork support comprises a first inclined rod and a second inclined rod, and the first inclined rod is arranged forwards and obliquely upwards; the second inclined rod is fixed at the front end of the first inclined rod and is arranged obliquely upwards backwards, the rear end of the second inclined rod is extended, a wheel shaft is installed at the rear end of the first inclined rod, and the front end of the second inclined rod is connected with the seat tube; the rear end extension part of the second diagonal rod is hinged with the shock absorber, and the other end of the shock absorber is connected with the seat tube through a connector.

Preferably, a structural reinforcing rod is arranged at an included angle between the first inclined rod and the second inclined rod, wherein the included angle is formed by downward openings.

Preferably, a battery placing frame is arranged at the bottom of the rear side of the seat tube; the front end of the second inclined rod is hinged to the rear part of the battery placing frame to be movably connected with the seat tube; the rear end of the shock absorber is hinged between the second diagonal member frame of the rear fork support on the left side and the second diagonal member of the rear fork support on the right side.

Preferably, the front part and the rear part of the frame main pipe are connected through a self-locking folder, and the frame main pipe is of a hollow structure.

Preferably, a controller box is arranged between the frame main pipe and the seat pipe for connection; the lower part of the controller box occupies an included angle between the main frame pipe and the seat pipe, the rear part of the controller box protrudes upwards, the front side of the protruding part of the controller box is welded and fixed with the main frame pipe, and the rear side of the controller box is welded and fixed with the seat pipe.

Preferably, the bottom of the controller box is provided with a chain disc shaft mounting hole.

Preferably, a rear seat frame is mounted on the rear fork support.

Preferably, a lifting handle is arranged between the upper side of the frame main pipe and the front side of the seat pipe.

The beneficial effects of the utility model reside in that: the utility model provides a multi-functional folding bicycle frame compares in prior art, the utility model discloses following technological effect has at least: through special figurative back fork support, replaced the mode that traditional bumper shock absorber needs the installation of pushing up on vertical, made and transversely to install the bumper shock absorber between back fork support and the back seat pipe, the top that back fork support top surpassed the wheel can only install single bumper shock absorber, can reduce the volume of frame like this, reduces purchasing cost simultaneously, simple structure is practical. The shock absorber can be installed in a small space of the tire round angle position, the wheel base size is not occupied, the shock absorber installed transversely is shorter in working stroke than the shock absorber installed vertically under the same shock absorption effect, the soft tail effect can be achieved, and the short shock absorber can have a very good shock absorption effect. Because the shock absorber is installed in the front top, when the shock absorber resets after shock absorption compression, the reset force of the shock absorber pushes forwards to play a role in energy conservation. Because the longitudinal shock absorption of the shock absorber is changed into the transverse shock absorption, the vehicle can reduce the unstable phenomenon of up-down bump; therefore, the bicycle is more stable, and the riding is more comfortable and safer. Set up the structure stiffener through the contained angle department at first down tube and second down tube, make lambda become the back fork support of A style of calligraphy, the structure of triangle is more firm stable. The controller box is installed at the triangular space position of the middle shaft of the traditional bicycle, the space is utilized to extremely reduce, shorten and narrow the bicycle, and the multifunctional folding electric bicycle frame which is more suitable for riding and convenient to walk is really realized.

Drawings

Fig. 1 is a schematic structural view of the frame of the multifunctional foldable bicycle of the present invention.

Fig. 2 is a schematic structural view of the rear fork bracket of the present invention.

Fig. 3 is a schematic view showing the second diagonal members of the left and right rear fork brackets of the present invention arranged side by side.

Fig. 4 is a schematic view of the first diagonal members of the left and right rear fork brackets of the present invention arranged side by side.

Description of the drawings: 1-a frame main pipe, 2-a head pipe, 3-a seat pipe, 4-a rear fork support, 41-a first diagonal rod, 42-a second diagonal rod, 43-a structural reinforcing rod, 5-a shock absorber, 6-a battery placing rack, 7-a folder, 8-a rear seat frame, 9-a controller box, 10-a lifting handle and 11-a connector.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, a multifunctional foldable bicycle frame comprises a frame main tube 1, a head tube 2 and a seat tube 3, wherein the head tube 2 is arranged at the front end of the frame main tube 1, the seat tube 3 is arranged at the rear side of the frame main tube 1, rear fork supports 4 are symmetrically arranged at the rear side of the seat tube 3 in the left-right direction, the rear fork supports 4 are in an inverted V shape, the front parts of the rear fork supports 4 are hinged to the seat tube 3, the rear parts of the rear fork supports 4 are used for mounting wheel shafts, and a transverse shock absorber 5 is arranged between the top parts of the rear fork supports 4 and the seat tube 3; the cooperation of the rear fork support 4 of horizontal installation 5 and unique shape plays soft tail absorbing effect, turns into partial lateral shifting with vertical direction displacement, just so can shorten the working stroke of bumper shock absorber 5, so compare in the bumper shock absorber of vertical installation, can use the bumper shock absorber of smaller-size to play the same shock attenuation effect even better. Can be like this can be at folding electric bicycle and the series motorcycle type of riding install short money bumper shock absorber 5 in limited few space, help reducing of frame size, its power pushes away forward when bumper shock absorber 5 resets to kick-back, and the car is more steady more energy-conserving, can reduce the vibration of the car upper and lower direction, and it is more steady to ride.

Referring to fig. 1 to 4, preferably, the rear fork support 4 includes a first inclined rod 41 and a second inclined rod 42, and the first inclined rod 41 is disposed obliquely upward toward the front; the second inclined rod 42 is fixed at the front end of the first inclined rod 41 and is arranged obliquely upwards towards the back, the rear end of the second inclined rod 42 is extended, a wheel axle is installed at the rear end of the first inclined rod 41, and the front end of the second inclined rod 42 is connected with the seat tube 3; an extension portion of a rear end of the second diagonal member 42 is hinged to the damper 5, a rear end of the damper 5 is hinged between the rear fork frame 4 on the left side and the extension portion of the second diagonal member 42 of the rear fork frame 4 on the right side, and an extension portion is provided so as to be positioned above a wheel to be mounted in order to connect the damper 5 to the wheel, thereby preventing interference with the wheel and leaving a mounting space for a wheel of a predetermined size; the other end of the shock absorber 5 is connected with the seat tube 3 through a connector 11. The connector 11 forms a rectangular space at the rear side of the seat tube 3, so that the battery in the battery placing frame 6 can be conveniently bypassed to be connected with the shock absorber 5, and the battery can be quickly drawn out of the battery installing frame or put in the battery installing frame. A structure reinforcing rod 43 is arranged at an included angle between the first inclined rod 41 and the second inclined rod 42, wherein the included angle is downward in opening, and the structure reinforcing rod is combined with the original first inclined rod 41 and the second inclined rod 42 to form an A shape, so that a stable triangular structure is formed, and the stability of the structure is improved. A battery placing frame 6 is arranged at the bottom of the rear side of the seat tube 3; the front end of the second inclined rod 42 is hinged to the rear portion of the battery placing frame 6 to be movably connected with the seat tube 3. Enough space is reserved for installing the battery in the battery placing frame 6, and the battery and the rear fork frame are prevented from interfering with each other to influence use.

Referring to fig. 1, preferably, the front portion and the rear portion of the frame main tube 1 are connected by a self-locking folder 7, and the frame main tube 1 has a hollow structure, so that the frame main tube can be conveniently folded to reduce the storage space.

Referring to fig. 1, preferably, a controller box 9 is arranged between the frame main tube 1 and the seat tube 3 for connection; the lower part of the controller box 9 occupies an included angle position between the main frame pipe 1 and the seat pipe 3, the rear part of the controller box 9 protrudes upwards, the front side of the protruding part of the controller box 9 is welded and fixed with the main frame pipe 1, and the rear side edge of the controller box 9 is welded and fixed with the seat pipe 3. And a chain disc shaft mounting hole is formed in the bottom of the controller box 9. The controller box 9 is installed at the triangular space position of the middle axle of the traditional bicycle, so that the space utilization is extremely good, and the bicycle frame is favorably smaller, shorter and narrower. And a rear seat frame 8 is arranged on the rear fork bracket 4.

Referring to fig. 1, preferably, a handle grip 10 is provided between the upper side of the frame main tube 1 and the front side of the seat tube 3. The whole vehicle is convenient to lift and pull after being folded.

The utility model discloses the theory of operation below having:

through special figurative back fork support 4, replaced traditional bumper shock absorber 5 and needed the mode of vertical top installation, make between back fork support 4 and the back seat pipe 3 can transversely install bumper shock absorber 5, surpass the top of wheel when 4 tops of back fork support and can only install single bumper shock absorber 5, can reduce the volume of frame like this, reduce purchasing cost simultaneously, simple structure is practical. Compared with the shock absorber 5 which is vertically installed, the shock absorber 5 which is horizontally installed can convert most part of vertical shaking into horizontal movement, so that the working stroke can be greatly shortened compared with the shock absorber 5 which is vertically installed, and the shock absorber 5 which is smaller in size and shorter in stroke can be used under the condition of playing the same shock absorption effect; thus, the lower shock absorber 5 can be installed by utilizing a little space of the tire fillet position of the frame, the axle base size is not occupied, and the soft tail function can be realized. Because shock absorber 5 is preceding top installation, so when shock absorber 5 resets after the shock attenuation compression, the power that shock absorber 5 reset is forward, rather than vertical, so can reduce greatly and ride the in-process and jolt, the shock attenuation effect is better, ride more steadily comfortable. The structure reinforcing rod 43 is arranged at the included angle between the first inclined rod 41 and the second inclined rod 42, so that the reversed V is changed into the A-shaped rear fork bracket 4, and the formed triangular structure enables the mechanism of the rear fork bracket 4 to be firmer. The controller box 9 is installed at the triangular space position of the middle shaft of the traditional bicycle, the bicycle is extremely small, short and narrow due to space utilization, and the multifunctional folding electric bicycle frame which is more suitable for riding instead of walk and convenient is really achieved.

The points to be explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, "upper," "lower," "left," and "right," and the like are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed.

Secondly, the method comprises the following steps: the utility model discloses in the embodiment drawing, only involve the structure that involves with this disclosed embodiment, other structures can refer to common design, under the conflict-free condition, the utility model discloses same embodiment and different embodiments can the intercombination.

Finally, it is only above the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiments, all belong to the technical scheme of the present invention under the thought all belong to the protection scope of the present invention.

It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a multi-functional folding bicycle frame, includes that the frame is responsible for, head pipe, seat pipe, the head pipe sets up the front end that the frame was responsible for, the seat pipe set up in the rear side that the frame was responsible for, its characterized in that: the left side and the right side of the rear side of the seat tube are symmetrically provided with a rear fork support, the rear fork support is in an inverted V shape, the front part of the rear fork support is movably connected with the seat tube, the rear part of the rear fork support is used for mounting a wheel shaft, and a transverse shock absorber is arranged between the top of the rear fork support and the seat tube.

2. The multifunctional foldable bicycle frame as claimed in claim 1, wherein: the rear fork bracket comprises a first inclined rod and a second inclined rod, and the first inclined rod is arranged forwards and obliquely upwards; the second inclined rod is fixed at the front end of the first inclined rod and is arranged in an inclined upward direction towards the back; the rear end of the second diagonal rod is extended, the rear end of the first diagonal rod is provided with a wheel shaft, and the front end of the second diagonal rod is connected with the seat tube; the rear end extension part of the second diagonal rod is hinged with the shock absorber, and the other end of the shock absorber is connected with the seat tube through a connector.

3. The multifunctional foldable bicycle frame as claimed in claim 2, wherein: and a structural reinforcing rod is arranged at the included angle between the first inclined rod and the second inclined rod, wherein the included angle is provided with a downward opening.

4. The multifunctional foldable bicycle frame as claimed in claim 2, wherein: a battery placing frame is arranged at the bottom of the rear side of the seat tube; the front end of the second inclined rod is hinged to the rear part of the battery placing frame to be movably connected with the seat tube; the rear end of the shock absorber is hinged between the second inclined rod of the rear fork support on the left side and the second inclined rod of the rear fork support on the right side.

5. The multifunctional foldable bicycle frame as claimed in claim 1, wherein: the front part and the rear part of the frame main pipe are connected through a self-locking folder, and the frame main pipe is of a hollow structure.

6. The multifunctional foldable bicycle frame as claimed in claim 1, wherein: a controller box is arranged between the frame main pipe and the seat pipe for connection; the lower portion of the controller box occupies an included angle between the frame main pipe and the seat pipe, the rear portion of the controller box protrudes upwards, the front side of the protruding portion of the controller box is fixedly welded with the frame main pipe, and the rear side edge of the controller box is fixedly welded with the seat pipe.

7. The multifunctional foldable bicycle frame as claimed in claim 6, wherein: and a chain disc shaft mounting hole is formed in the bottom of the controller box.

8. The multifunctional foldable bicycle frame as claimed in claim 1, wherein: and a rear seat frame is arranged on the rear fork bracket.

9. The multifunctional foldable bicycle frame as claimed in claim 1, wherein: and a lifting handle is arranged between the upper side of the frame main pipe and the front side of the seat pipe.