CN214565899U - Three-wheel automatic bicycle - Google Patents

Three-wheel automatic bicycle Download PDF

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Publication number
CN214565899U
CN214565899U CN202121066241.8U CN202121066241U CN214565899U CN 214565899 U CN214565899 U CN 214565899U CN 202121066241 U CN202121066241 U CN 202121066241U CN 214565899 U CN214565899 U CN 214565899U
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rear wheel
wheel
generator
power generation
automatic
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CN202121066241.8U
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Chinese (zh)
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乔小锋
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Individual
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Individual
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Abstract

The utility model relates to a laborsaving tricycle automatic bicycle relates to instrument technical field of riding. The utility model discloses a laborsaving bicycle is through adopting including head tube, roof beam structure, cushion, front wheel and running-board, and its characteristic, outside through preceding tire direction, well tire and back tire are amalgamated and have an effect in step, and the equalizer helping hand small tyre of configuration has formed a pulley combination and has started in addition between well back tire, easily reaches the good effect that laborsaving area was stepped on. In addition, this tricycle automatic bicycle has settled from the power generation mode helping hand and has taken steps, has further reached the steep slope, all effect problems of taking steps such as hypodynamia. In order to guarantee riding safety, a spontaneous power-assisted electric mode is not recommended to be started randomly.

Description

Three-wheel automatic bicycle
Technical Field
The utility model relates to an instrument technical field of riding particularly, relates to an automatic tricycle.
Background
Bicycles, also known as bicycles or bicycles, are typically two-wheeled small land vehicles. After a person rides the vehicle, the person steps on the pedal as power, and the vehicle is a green and environment-friendly vehicle. The bicycle is of various types, including single-person bicycles, double-person bicycles and multi-person bicycles. The bicycle is a traditional industry, has a history of more than 100 years, is a favorite transportation and fitness tool for residents in all countries, particularly developed countries, in the world again due to the problems of environmental protection and transportation, the center of gravity of the bicycle industry in the world is being changed from the traditional transportation tool instead of walking to sports, mountain land and leisure, and the bicycle is a popular sports, fitness, leisure and entertainment product in developed countries such as the United states, Europe and the Japan.
At present, the bicycle that rides for a long time consumes physical power very much, especially has the uphill or the bumpy highway section, is difficult to ride more. Therefore, the prior art is in need of improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic bicycle of tricycle, some problems that it can exist to among the prior art, provide corresponding solution, have ride light, the beneficial effect that trafficability characteristic is good.
The embodiment of the utility model is realized like this:
the embodiment of the application provides an automatic tricycle, including head pipe, roof beam structure, cushion, front wheel and running-board, the roof beam structure is connected with first rear wheel, the second rear wheel of synchronous drive wheel and front and back setting, and first rear wheel is connected with synchronous drive wheel, and synchronous drive wheel is connected with the second rear wheel, and first rear wheel still is connected with the running-board, and the second rear wheel still is connected with the helping hand motor.
In some embodiments of the present invention, the beam frame is provided with a power generation structure connected to the power motor, and the power generation structure is connected to one of the front wheel, the first rear wheel, and the second rear wheel.
In some embodiments of the present invention, the power generating structure includes a generator and a rotating wheel connected to the generator, and the rotating wheel is connected to the first rear wheel.
The utility model discloses an in some embodiments, above-mentioned electricity generation structure still includes base, cam, box body and rotation handle, and the cam rotates with the base to be connected, rotates handle and cam fixed connection, and the box body is connected with the generator, the inner wall and the cam adaptation of box body.
In some embodiments of the present invention, the base is provided with a sliding groove, and the bottom of the generator is connected with a sliding block adapted to the sliding groove.
In some embodiments of the present invention, the handle is provided at the end of the rotating handle.
In some embodiments of the present invention, the head tube is provided with a lighting lamp, and the lighting lamp is connected to the generator.
In some embodiments of the present invention, the head pipe top is provided with a handlebar, the handlebar is connected with an operating panel, and the operating panel is connected with the generator.
The utility model discloses an in some embodiments, above-mentioned roof beam structure is including entablature, bottom end rail and the oblique corbel bar of end to end connection in proper order, entablature one end and head union coupling, the entablature other end is connected with the second rear wheel, and the bottom end rail is connected with first rear wheel.
In some embodiments of the present invention, the upper beam is provided with a support rod, and the support rod is connected to the synchronous driving wheel.
Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:
an embodiment of the utility model provides an automatic tricycle, including head pipe, roof beam structure, cushion, front wheel and running-board, these spare parts are the conventional part of constituteing the bicycle among the prior art, and first rear wheel, synchronous drive wheel and the first rear wheel of second rear wheel are all installed on the roof beam structure to can the free rotation. First rear wheel and synchronous drive wheel transmission are connected, synchronous drive wheel and second rear wheel transmission are connected, make first rear wheel and second rear wheel synchronous rotation, and first rear wheel and second rear wheel set up in tandem, make the front wheel, first rear wheel and second rear wheel are on a straight line, when through the pot hole, a wheel in first rear wheel and the second rear wheel is unsettled, another still contacts with ground, still can steadily pass through the pot hole, reduce and bump, trafficability characteristic is better. The chain of the pedal is connected with the wheel disc of the first rear wheel, and the pedal provides power on a flat road surface to enable the three-wheel automatic bicycle to move forward, so that the three-wheel automatic bicycle is energy-saving and environment-friendly; the power-assisted motor can drive the second rear wheel and rotate, adopts the electronic mode to give power, makes this tricycle automatic bicycle go forward, plays the helping hand effect in uphill or the bumpy highway section, lets tricycle automatic bicycle play good effect of riding instead of walk, and it is more convenient to ride. Therefore, the embodiment of the utility model provides an automatic bicycle of tricycle has the convenient, the good beneficial effect of trafficability characteristic of riding.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a three-wheeled automatic bicycle according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a power generation structure provided in an embodiment of the present invention;
fig. 3 is an internal schematic view of the power generation structure provided by the embodiment of the present invention during power generation;
fig. 4 is an internal schematic view of the power generation structure provided by the embodiment of the present invention when power is not generated.
Icon: 1-head pipe, 101-lighting lamp, 102-handlebar, 103-operating panel, 2-beam frame, 201-upper beam, 2011-supporting rod, 202-lower beam, 203-oblique beam, 204-first rear wheel, 205-second rear wheel, 206-power assisting motor, 207-synchronous transmission wheel, 3-cushion, 4-front wheel, 5-pedal, 6-power generation structure, 601-generator, 6011-slider, 602-rotating wheel, 603-base, 6031-sliding chute, 604-cam, 605-box body, 606-rotating handle and 6061-grab handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Examples
Referring to fig. 1 to 4, an automatic tricycle according to an embodiment of the present invention is provided, and the structure of the automatic tricycle is as follows.
The embodiment of the application provides a three-wheel automatic bicycle, which comprises a head pipe 1, a beam frame 2, a cushion 3, a front wheel 4 and a pedal plate 5, wherein the beam frame 2 is connected with a synchronous transmission wheel 207, a first rear wheel 204 and a second rear wheel 205 which are arranged in front and at the back, the first rear wheel 204 is connected with the synchronous transmission wheel 207, the synchronous transmission wheel 207 is connected with the second rear wheel 205, the first rear wheel 204 is further connected with the pedal plate 5, and the second rear wheel 205 is further connected with a power-assisted motor 206. Referring to fig. 1, the bicycle comprises a head tube 1, a beam frame 2, a seat cushion 3, a front wheel 4 (i.e. a front tire) and a pedal 5, which are conventional components of a bicycle in the prior art, wherein a first rear wheel 204 (i.e. a middle tire), a synchronous transmission wheel 207 and a second rear wheel 205 (i.e. a rear tire), the first rear wheel 204 is mounted on the beam frame 2 and can rotate freely.
As shown in fig. 1, the first rear wheel 204 is in transmission connection with a synchronous transmission wheel 207 (i.e. a small wheel in fig. 1), and the synchronous transmission wheel 207 is in transmission connection with the second rear wheel 205, so that the first rear wheel 204 and the second rear wheel 205 rotate synchronously, and the transmission connection between the first rear wheel 204 and the second rear wheel 205 can be chain transmission, or as shown in fig. 1, the side surface of the synchronous transmission wheel 207 is simultaneously abutted against the first rear wheel 204 and the second rear wheel 205, so that the first rear wheel 204 and the second rear wheel 205 rotate synchronously in a friction transmission manner, and the rotation speed between the first rear wheel 204 and the second rear wheel 205 is balanced. Further, the first rear wheel 204 and the second rear wheel 205 are arranged in tandem so that the front wheel 4, the first rear wheel 204 and the second rear wheel 205 are in a straight line, when the hollow is passed, the first rear wheel 204 is firstly suspended, the second rear wheel 205 is still in contact with the ground, and the front wheel can still move forwards due to synchronous rotation; then the first rear wheel 204 contacts with the ground, and the second rear wheel 205 is suspended and smoothly passes through the hollow, so that the jolt is reduced, and the passing performance is better.
As shown in fig. 1, the chain of the pedal 5 is connected with the wheel disc of the first rear wheel 204, the chain of the pedal 5 can also be connected with the wheel disc of the second rear wheel 205, and the pedal 5 is used for providing power on a flat road surface, so that the three-wheel automatic bicycle advances, and the three-wheel automatic bicycle is energy-saving and environment-friendly; the helping hand motor 206 can drive the second rear wheel 205 and rotate, and the second rear wheel 205 drives the synchronous rotation of first rear wheel 204 through synchronous drive wheel 207, adopts electronic mode to give power, makes this tricycle automatic bicycle go forward, plays the helping hand effect in the uphill or the bumpy highway section, lets tricycle automatic bicycle play good effect of riding instead of walk, and it is more convenient to ride. Therefore, the embodiment of the utility model provides an automatic bicycle of tricycle has the convenient, the good beneficial effect of trafficability characteristic of riding.
In some embodiments of the present invention, the beam frame 2 is provided with a power generation structure 6 connected to the assist motor 206, and the power generation structure 6 is connected to one of the front wheel 4, the first rear wheel 204, and the second rear wheel 205. Referring to fig. 1 and 2, the power generation structure 6 is mounted on the beam frame 2, the power generation structure 6 is in transmission connection with the first rear wheel 204 (in other embodiments, the power generation structure 6 may also be connected with one of the front wheel 4 and the first rear wheel 204), and when the riding is easy (for example, downhill), the first rear wheel 204 rotates to drive the power generation structure 6 to generate power, and the power generation structure 6 stores the generated power in an internal storage battery. Electricity generation structure 6 and helping hand motor 206 pass through the electric wire and realize electric connection, and when being in the uphill or the bumpy highway section, electricity generation structure 6 provides the electric energy for helping hand motor 206, saves people's the energy of riding.
In some embodiments of the present invention, the power generation structure 6 includes a generator 601 and a rotating wheel 602 connected to the generator 601, and the rotating wheel 602 is connected to the first rear wheel 204. Referring to fig. 1 and 2, the power generation structure 6 mainly includes two parts, i.e., a generator 601 and a rotating wheel 602, the rotating wheel 602 is mounted on a rotating shaft of the generator 601, the rotating wheel 602 may be a rubber rotating wheel, and the friction force is large after the rubber rotating wheel contacts with the first rear wheel 204, so that the transmission effect is good. The rotating wheel 602 can also be provided with a wheel groove which just wraps the tire tread of the first rear wheel 204, so that the contact area is larger and the transmission effect is better.
In some embodiments of the present invention, the power generation structure 6 further includes a base 603, a cam 604, a box 605 and a rotating handle 606, the cam 604 is rotatably connected to the base 603, the rotating handle 606 is fixedly connected to the cam 604, the box 605 is connected to the power generator 601, and the inner wall of the box 605 is adapted to the cam 604. As shown in fig. 1, 2 and 3, the power generation structure 6 further includes a base 603, a cam 604, a box 605 and a rotation handle 606, wherein the base 603 is a plate and can be fixed on the beam frame 2 by welding or screwing, the cam 604 is mounted on the base 603 through a support plate, and the cam 604 can rotate freely relative to the support plate. The box 605 is a square box, the bottom of the box 605 is provided with an opening, and the box 605 covers the cam 604 and can slide on the base 603. The right side of the box 605 is fixedly connected with the left side of the generator 601, and the protruding part can contact the left and right side walls in the box 605 after the cam 604 rotates, so as to push the box 605 to move.
As shown in fig. 2, an opening is formed in the side surface of the box body 605, the rotating handle 606 extends into the inside from the opening and is fixedly connected with the center position of the end surface of the cam 604, and when people ride the bicycle, the orientation of the cam 604 can be controlled by controlling the rotation of the rotating handle 606 with a hand, so as to control whether the power generation structure 6 is in contact with the first rear wheel 204. As shown in fig. 3, when the rotating handle 606 is operated to rotate clockwise, the protruding portion of the cam 604 pushes the box 605 to move downward, and the box 605 pushes the rotating wheel 602 of the generator 601 to abut against the first rear wheel 204, so that the first rear wheel 204 drives the generator 601 to generate electricity; as shown in fig. 4, when the rotating handle 606 is operated to rotate counterclockwise, the protruding portion of the cam 604 pushes the box 605 to move upward, and the box 605 pushes the rotating wheel 602 of the generator 601 to disengage from the first rear wheel 204, so that the first rear wheel 204 cannot drive the generator 601 to generate electricity. The power generation or no power generation is reasonably selected according to actual conditions, and the use is very convenient.
In some embodiments of the present invention, the base 603 is provided with a sliding groove 6031, and the bottom of the generator 601 is connected with a sliding block 6011 adapted to the sliding groove 6031. As shown in fig. 3 or fig. 4, the base 603 is provided with a chute 6031, the chute 6031 is parallel to the oblique supporting beam 203, the bottom of the generator 601 is fixedly connected with a sliding block 6011, and the sliding block 6011 is just matched with the chute 6031, so that the generator 601 can only move up and down along the chute 6031, the rotating wheel 602 is aligned with the first rear wheel 204 and tightly abutted thereto, and the using effect is better.
In some embodiments of the present invention, the handle 6061 is sleeved on the end of the rotating handle 606. Referring to fig. 2 and 3, the grip 6061 is sleeved on the top of the rotating handle 606, and the grip 6061 can be a wooden grip, so that the operation is convenient for people to master and the use is more convenient.
In some embodiments of the present invention, the head pipe 1 is provided with a lighting lamp 101, and the lighting lamp 101 is connected to the generator 601. Referring to fig. 1, the head tube 1 is provided with the illuminating lamp 101, and the illuminating lamp 101 illuminates the front of the three-wheeled automatic bicycle of the present embodiment, so that the three-wheeled automatic bicycle is suitable for riding under the condition of insufficient light, and is safer. The electric energy stored by the generator 601 can be used for illuminating the illuminating lamp 101, and the illuminating lamp is simple in structure and reasonable in design.
In some embodiments of the present invention, a handlebar 102 is disposed on the top of the head pipe 1, the handlebar 102 is connected to an operating panel 103, and the operating panel 103 is connected to the generator 601. The handlebar 102 is mounted on the top of the head pipe 1, which is convenient for people to master the direction. The operation panel 103 is fixed on the handlebar 102, and the operation panel 103 is provided with an adjusting button or a switch for controlling whether the generator 601 supplies electric energy to the power-assisted motor 206 or not and whether resistance is required to be controlled by manual operation or not, so that the use is more convenient.
It should be noted that the handle bar 102 is also provided with a bell and a brake, which are prior art structures and therefore not described in detail, and are not shown in the drawings.
In some embodiments of the present invention, the beam frame 2 includes an upper beam 201, a lower beam 202 and a diagonal beam 203 connected end to end in sequence, the upper beam 201 is connected to the head pipe 1, the other end of the upper beam 201 is connected to the second rear wheel 205, and the lower beam 202 is connected to the first rear wheel 204. As shown in fig. 1, the beam frame 2 is mainly composed of an upper beam 201, a lower beam 202 and an oblique beam 203, which are sequentially connected end to form a triangular shape with good stability. The left end of the upper beam 201 is fixedly connected with the head pipe 1, the right end of the upper beam 201 is rotatably connected with the second rear wheel 205, and the lower beam 202 is rotatably connected with the first rear wheel 204. The structural design is reasonable.
In some embodiments of the present invention, the upper beam 201 is provided with a support bar 2011, and the support bar 2011 is connected to the synchronous transmission wheel 207. As shown in fig. 1, the top end of the supporting rod 2011 is fixedly connected to the upper cross beam 201, the synchronous transmission wheel 207 is installed at the lower end of the supporting rod 2011, the synchronous transmission wheel 207 can rotate, and the supporting rod 2011 plays a role in fixing and supporting.
It should be noted that the electric power assistance is only started when a steep slope is poor, and the electric power assistance is not started normally (for example, on a flat road) for self safety, so that the situation that the electric power assistance causes too fast vehicle speed and dangers is avoided.
To sum up, the embodiment of the utility model provides an automatic bicycle of tricycle, including head pipe 1, the roof beam structure 2, cushion 3, front wheel 4 and running-board 5, the roof beam structure 2 is connected with first rear wheel 204, second rear wheel 205 that synchronous drive wheel 207 and front and back set up, first rear wheel 204 is connected with synchronous drive wheel 207, synchronous drive wheel 207 is connected with second rear wheel 205, first rear wheel 204 still is connected with running-board 5, second rear wheel 205 still is connected with motor 206, trafficability characteristic is good, the laborsaving advantage of bank is crossed in having the slope of climbing. In order to completely describe the content of the utility model, the beam frame 2 is provided with the power generation structure 6 connected with the power assisting motor 206, and the power generation structure 6 is connected with the first rear wheel 204, so that the energy is saved, the environment is protected, and the riding energy of people is saved. The power generation structure 6 comprises a generator 601 and a rotating wheel 602 connected with the generator 601, wherein the rotating wheel 602 is connected with the first rear wheel 204, and the transmission effect is good. The power generation structure 6 further comprises a base 603, a cam 604, a box body 605 and a rotating handle 606, wherein the cam 604 is rotatably connected with the base 603, the rotating handle 606 is fixedly connected with the cam 604, the box body 605 is connected with the power generator 601, and the inner wall of the box body 605 is matched with the cam 604, so that the power generation structure is convenient to use. The base 603 is provided with a sliding groove 6031, the bottom of the generator 601 is connected with a sliding block 6011 matched with the sliding groove 6031, and the using effect is better. The head pipe 1 is provided with an illuminating lamp 101, and the illuminating lamp 101 is connected with a generator 601; the top of the head pipe 1 is provided with a handlebar 102, the handlebar 102 is connected with an operation panel 103, and the operation panel 103 is connected with a generator 601; simple structure, reasonable in design. The beam frame 2 comprises an upper cross beam 201, a lower cross beam 202 and an oblique supporting beam 203 which are sequentially connected end to end, one end of the upper cross beam 201 is connected with the head pipe 1, the other end of the upper cross beam 201 is connected with a second rear wheel 205, the lower cross beam 202 is connected with a first rear wheel 204, the upper cross beam 201 is provided with a supporting rod 2011, the supporting rod 2011 is connected with a synchronous driving wheel 207, and the beam frame is stable in structure and reasonable in design. Therefore, the embodiment of the utility model provides an automatic bicycle of tricycle has the light, the good beneficial effect of trafficability characteristic of riding.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The three-wheel automatic bicycle comprises a head pipe, a beam frame, a cushion, a front wheel and pedals, and is characterized in that the beam frame is connected with a synchronous driving wheel, a first rear wheel and a second rear wheel which are arranged in the front and at the back, the first rear wheel is connected with the synchronous driving wheel, the synchronous driving wheel is connected with the second rear wheel, the first rear wheel is further connected with the pedals, and the second rear wheel is further connected with a power assisting motor.
2. The automatic three-wheeled bicycle according to claim 1, wherein the beam is provided with a power generation structure connected to the assist motor, the power generation structure being connected to one of the front wheel, the first rear wheel, and the second rear wheel.
3. The three-wheeled automatic bicycle according to claim 2, wherein the power generation structure comprises a generator and a rotating wheel connected with the generator, the rotating wheel being connected with the first rear wheel.
4. The automatic tricycle as claimed in claim 3, wherein the power generation structure further comprises a base, a cam, a box and a rotating handle, the cam is rotatably connected with the base, the rotating handle is fixedly connected with the cam, the box is connected with the power generator, and the inner wall of the box is matched with the cam.
5. The three-wheeled automatic bicycle according to claim 4, wherein the base is provided with a sliding groove, and a sliding block matched with the sliding groove is connected to the bottom of the generator.
6. The automatic tricycle as claimed in claim 4, wherein the end of the rotation handle is sleeved with a grab handle.
7. Three-wheeled automatic bicycle according to claim 4, characterised in that said head tube is provided with a lighting lamp, said lighting lamp being connected to said generator.
8. The three-wheeled automatic bicycle according to claim 4, wherein a handlebar is arranged on the top of the head pipe, an operation panel is connected to the handlebar, and the operation panel is connected to the generator.
9. The automatic tricycle as claimed in any one of claims 1-8, wherein the beam frame comprises an upper beam, a lower beam and a diagonal beam connected end to end in sequence, wherein one end of the upper beam is connected to the head pipe, the other end of the upper beam is connected to the second rear wheel, and the lower beam is connected to the first rear wheel.
10. Three-wheeled automatic bicycle according to claim 9, characterised in that said upper crosspiece is provided with a support bar, said support bar being connected to said synchronous transmission wheel.
CN202121066241.8U 2021-05-18 2021-05-18 Three-wheel automatic bicycle Active CN214565899U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121066241.8U CN214565899U (en) 2021-05-18 2021-05-18 Three-wheel automatic bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121066241.8U CN214565899U (en) 2021-05-18 2021-05-18 Three-wheel automatic bicycle

Publications (1)

Publication Number Publication Date
CN214565899U true CN214565899U (en) 2021-11-02

Family

ID=78329563

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121066241.8U Active CN214565899U (en) 2021-05-18 2021-05-18 Three-wheel automatic bicycle

Country Status (1)

Country Link
CN (1) CN214565899U (en)

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