CN107444546B

CN107444546B - Vertical folding electric bicycle

Info

Publication number: CN107444546B
Application number: CN201710719684.4A
Authority: CN
Inventors: 张华�; 邵国良
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-12-31
Filing date: 2017-08-21
Publication date: 2023-02-10
Anticipated expiration: 2037-08-21
Also published as: CN207374580U; CN107444545B; CN207374581U; CN107444545A; CN107472441A; CN107472441B; CN107444546A; CN207360490U

Abstract

The invention provides a vertical folding electric bicycle. It has solved current technical problem. This vertical folding electric bicycle, including folding frame, folding frame front portion be equipped with at least one wheel, folding frame rear portion be equipped with at least one wheel, folding frame on the total number of wheel be no less than three, and folding frame folding draw in the back from the rear portion to the front portion and have at least three wheel to gather together and gather together each wheel the place of touch all be located the coplanar in order to form the support of standing. The invention has the advantages of small occupied area, capability of self-standing support after being folded and the like.

Description

Vertical folding electric bicycle

Technical Field

The invention belongs to the technical field of electric vehicles, and particularly relates to a vertical folding electric bicycle.

Background

Along with the enhancement of the environmental awareness of people, people are increasingly demanding on electric bicycles, and after the breakthrough in the aspect of key technology and the performance of the electric bicycle are continuously improved, the electric bicycle becomes a substitute product of a motorcycle and a bicycle, and the electric bicycle is quick, environment-friendly, convenient and cheap, and simultaneously stimulates the appeal of the market to the electric bicycle. In order to make the carrying of electric motor car more convenient, so derived foldable electric motor car, the folding part of current foldable electric motor car is the frame mostly, and each part can lose the support before the expansion after the frame is folding, consequently can only adopt the putting upside down after folding, and area is big, is unfavorable for accomodating to need to stand when the expansion and adjust the position and just can correctly expand, folding process is loaded down with trivial details. In order to solve the problems of the prior art, people have long searched for and put forward various solutions.

For example, chinese patent document discloses a quick folding structure of an electric vehicle or a bicycle [ application number: 201410326210.X include preceding frame, saddle pipe, connecting plate, with connecting plate articulated first leading connecting rod, with connecting plate articulated back frame, its characterized in that: a self-locking connecting rod is arranged, the upper end of the self-locking connecting rod is hinged and linked with the rear end of the first front connecting rod, and the lower end of the self-locking connecting rod is hinged and linked with the front end of the rear frame; the hinge point of the first front connecting rod and the connecting plate is positioned at the front end of the connecting plate, the hinge point of the rear frame and the connecting plate is positioned at the lower end of the connecting plate, and the connecting line of the hinge point of the front end and the hinge point of the lower end is a motion critical line; when the hinge point at the upper end of the self-locking connecting rod moves to the rear side of the motion critical line, the folding structure is folded and locked; when the upper end hinge point of the self-locking connecting rod moves to the front side of the motion critical line, the folding structure is unlocked and unfolded.

The above solution improves some problems of the prior art to some extent, but it also has at least the following drawbacks: the structure is complicated, the supporting point for standing and supporting is not arranged after the folding, the occupied area is large, and the folding is complicated.

Disclosure of Invention

The invention aims to solve the problems and provides a vertical folding electric bicycle which is small in occupied area and can be supported by a user in an autonomous standing mode after being folded.

In order to achieve the purpose, the invention adopts the following technical scheme: this vertical folding electric bicycle, including folding frame, folding frame front portion be equipped with at least one wheel, folding frame rear portion be equipped with at least one wheel, folding frame on the total number of wheel be no less than three, and folding frame folding draw in the back from the rear portion to the front portion and have at least three wheel to gather together and gather together each wheel the place of touch all be located the coplanar in order to form the support of standing. At least three wheels support the folding frame after the folding frame is folded, so that the folding frame stands after being folded, the occupied space is small, and the standing is more stable.

In the above vertical folding electric bicycle, the folding frame comprises a wheel support, the wheel support comprises a front wheel support and a rear wheel support, the front wheel support is hinged with the rear wheel support, the front wheel support is provided with at least one wheel, the rear wheel support is provided with at least one wheel, the total number of the wheels on the front wheel support and the rear wheel support is not less than three, and a one-way bending limiting structure is arranged between the front wheel support and the rear wheel support. After the front wheel support and the rear wheel support rotate, wheels on the front wheel support and wheels on the rear wheel support are located on the same plane, and the total number of the wheels is not less than three, so that the standing after folding can be realized.

In foretell vertical folding electric bicycle, one-way bending limiting structure including locate respectively front wheel support rear end first support to support the face and locate the second of rear wheel support front end and support the face to support, and when front wheel support and rear wheel support are located same straight line first support to support face and second support to support the face and can coincide each other, the pin joint of front wheel support and rear wheel support be located the downside of front wheel support and rear wheel leg joint department. First butt joint face and the second of here is supported and is leaned on the face and can realize that front wheel support, rear wheel support are located both circumferential direction location when collinear, guarantee the stability when traveling to can play the effect of folding direction.

In the vertical folding electric bicycle, the first abutting surface and the second abutting surface are respectively step-shaped.

In the vertical folding electric bicycle, the front end of the front wheel bracket is provided with two wheels, and the rear end of the rear wheel bracket is provided with one wheel. After being folded, the three wheels are positioned on the same plane, and the connecting line of the three wheels is triangular.

In foretell vertical folding electric bicycle, folding frame still include handle frame, cushion support and support frame, the middle part of one end and handle frame of cushion support articulated mutually and form first pin joint, the lower extreme of handle frame articulated mutually and form the second pin joint with the one end of wheel support, the middle part of one end and cushion support of support frame articulated mutually and form the third hinge point, the middle part of the other end of support frame articulated mutually and form the fourth pin joint with the wheel support, first pin joint, second pin joint, third hinge point and fourth pin joint be four tetragonal summits respectively, at least two in handle frame, cushion support, wheel support and the support frame between be equipped with locking structure. The first hinge point, the second hinge point, the third hinge point and the fourth hinge point form a parallelogram, and the locking structure can lock two adjacent hinge points in the four hinge points, so that the positions of the handle frame, the cushion bracket, the wheel bracket and the support frame are locked during driving, and the structural stability during driving is ensured; when folding, locking structure loosens, and each pin joint homoenergetic free rotation to this folding, folding convenience of frame are realized.

In foretell vertical folding electric bicycle, the support frame lower extreme bifurcated portion have, bifurcated portion include first foot and second foot, first foot and front wheel support articulated mutually and the pin joint of first foot and front wheel support be fourth pin joint promptly, second foot lower extreme locking groove that has opening down, the rear wheel support on be equipped with the locking round pin, and when front wheel support and rear wheel support were located same straight line the locking round pin get into the locking inslot.

In the above vertical folding electric bicycle, a buffer mechanism for buffering along the axial direction of the support frame is arranged between the support frame and the cushion support or on the support frame.

In the above vertical folding electric bicycle, the buffer mechanism includes a first buffer body and a second buffer body movably connected in the axial direction, the first buffer body is connected with the cushion bracket, the second buffer body is connected with the support frame, a spring is arranged between the first buffer body and the second buffer body, one end of the spring acts on the first buffer body, and the other end acts on the second buffer body; the first buffer body and the second buffer body are mutually sleeved, the first buffer body is hinged with the cushion support, the second buffer body is hinged with the support frame, and the hinge point of the second buffer body and the support frame is the third hinge point. First buffering body and the relative activity of second buffering body here cup joint, and when the spring compression, the degree of depth that both cup jointed increases, and when the spring reset, the degree of depth that both cup jointed reduces to realize the buffering, and first buffering body is articulated mutually with the cushion support and can make the support frame turn over to be parallel with the handle frame, further reduces folding size.

In the above vertical folding electric bicycle, the locking structure is arranged between the handle frame and the rear wheel bracket; the locking structure comprises at least one locking plate arranged on the rear wheel bracket and at least one locking pull pin arranged on the handle frame, the locking plates and the locking pull pins are arranged in a one-to-one correspondence manner, each locking pull pin comprises a pin column and a cam lock handle hinged on the pin column, a locking notch for the pin column to pass in and out is arranged on each locking plate, and the locking plates are fixed on the handle frame by the locking pull pins after the pin columns enter the locking notches and the cam lock handles rotate; the locking structure further comprises a safety pin, at least one first positioning plate is fixedly arranged on the handle frame, a pin hole is formed in the first positioning plate, at least one second positioning plate is fixedly arranged on the rear wheel support, a positioning notch for the safety pin to go in and out is formed in the second positioning plate, the safety pin is arranged in the pin hole in a penetrating mode, locking knobs are respectively arranged at two ends of the safety pin, and the first positioning plate and the second positioning plate are locked by the locking knobs after the safety pin enters the positioning notch and the locking knobs rotate.

Compared with the prior art, the vertical folding electric bicycle has the advantages that: 1: the folding chair has reasonable design and simple structure, and can realize self-standing support after being folded, thereby reducing the occupied area; 2: each hinge point can freely rotate, and the folding process is simple; 3: and a locking structure is arranged at the two hinged points, so that the frame structure is more stable.

Drawings

FIG. 1 is a schematic view of a folded frame according to the present invention;

FIG. 2 is a cross-sectional view of the frame of the present invention shown in an expanded configuration;

FIG. 3 is a schematic view of a one-way bend limiting structure provided by the present invention;

FIG. 4 is a schematic view of a cushioning mechanism provided by the present invention;

FIG. 5 is a side elevational view of the frame provided by the present invention after deployment;

FIG. 6 is a schematic structural view of a locking structure provided by the present invention;

in the figure, a foldable frame 1, a wheel 2, a wheel bracket 3, a front wheel bracket 4, a rear wheel bracket 5, a one-way bending limit structure 6, a first abutting surface 7, a second abutting surface 8, a handle frame 9, a cushion bracket 10, a support frame 11, a first hinge point 12, a second hinge point 13, a third hinge point 14, a fourth hinge point 15, a locking structure 16, a forked part 17, a first foot part 18, a second foot part 19, a locking groove 20, a locking pin 21, a buffer mechanism 22, a first buffer body 23, a second buffer body 24, a spring 25, a locking plate 26, a locking pull pin 27, a pin column 28, a locking opening 29, a cam locking handle 30, a safety pin 31, a first positioning plate 32, a pin hole 33, a second positioning plate 34, a positioning notch 35 and a locking knob 36 are arranged.

Detailed Description

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

As shown in fig. 1-6, the vertical folding electric bicycle comprises a folding frame 1, at least one wheel 2 is arranged on the front portion of the folding frame 1, at least one wheel 2 is arranged on the rear portion of the folding frame 1, the total number of the wheels 2 on the folding frame 1 is not less than three, when the folding frame 1 is folded from the rear portion to the front portion, at least three wheels 2 gather together, and contact points of the gathered wheels 2 are located on the same plane to form a standing support, after the folding frame 1 is folded, at least three wheels 2 support the folding frame 1, standing after folding is achieved, the occupied space is small, and standing is more stable.

In this embodiment, folding chassis 1 includes wheel support 3, wheel support 3 includes front wheel support 4 and rear wheel support 5, front wheel support 4 is articulated mutually with rear wheel support 5, at least one wheel 2 on front wheel support 4, at least one wheel 2 on the rear wheel support 5, and the total number of wheel 2 on front wheel support 4 and the rear wheel support 5 is no less than three, be equipped with one-way bending limit structure 6 between front wheel support 4 and rear wheel support 5, after front wheel support 4 and rear wheel support 5 rotate, wheel 2 on the front wheel support 4 and wheel 2 on the rear wheel support 5 are located the coplanar, because the total number of wheel 2 is no less than three, consequently can realize standing after folding.

Further, one-way limit structure 6 that buckles leans on face 7 and the second of locating rear wheel support 5 front end to lean on face 8 including the first face of leaning on of locating front wheel support 4 rear end respectively, and when front wheel support 4 and rear wheel support 5 are located same straight line first support face 7 and the second support face 8 of leaning on can coincide each other, the pin joint of front wheel support 4 and rear wheel support 5 is located the downside of front wheel support 4 and rear wheel support 5 junction, here first support face 7 and the second support face 8 of leaning on can realize front wheel support 4, rear wheel support 5 is located circumferential direction between them when same straight line, stability when guaranteeing to travel, and can play the effect of folding direction.

Specifically, first butt face 7 and second butt face 8 are the step form respectively, and front wheel support 4 front end is equipped with two wheels 2, and rear wheel support 5 rear end is equipped with a wheel 2, and three wheels 2 are located and are the same as the plane after folding and the line between the three is triangle-shaped. Folding frame 1 still includes handle frame 9, cushion support 10 and support frame 11, the one end of cushion support 10 articulates and forms first pin joint 12 with the middle part of handle frame 9 mutually, the lower extreme of handle frame 9 articulates and forms second pin joint 13 with the one end of wheel support 3 mutually, the one end of support frame 11 articulates and forms third pin joint 14 with the middle part of cushion support 10 mutually, the other end of support frame 11 articulates and forms fourth pin joint 15 with the middle part of wheel support 3 mutually, first pin joint 12, second pin joint 13, third pin joint 14 and fourth pin joint 15 are four tetragonal summits respectively, be equipped with locking structure 16 between at least two in handle frame 9, cushion support 10, wheel support 3 and the support frame 11. The first hinge point 12, the second hinge point 13, the third hinge point 14 and the fourth hinge point 15 form a parallelogram, and the locking structure 16 can lock two adjacent hinge points of the four hinge points, so that the positions of the handle frame 9, the seat cushion support 10, the wheel support 3 and the support frame 11 are locked during driving, and the structural stability during driving is ensured; when the bicycle frame is folded, the locking structure 16 is loosened, and all hinged points can freely rotate, so that the bicycle frame is folded conveniently.

Furthermore, the lower end of the support frame 11 has a branch part 17, the branch part 17 includes a first foot part 18 and a second foot part 19, the first foot part 18 is hinged to the front wheel support 4, a hinge point of the first foot part 18 and the front wheel support 4 is a fourth hinge point 15, the lower end of the second foot part 19 has a locking groove 20 with a downward opening, the rear wheel support 5 is provided with a locking pin 21, and the locking pin 21 enters the locking groove 20 when the front wheel support 4 and the rear wheel support 5 are located on the same straight line. A buffer mechanism 22 which buffers along the axial direction of the support frame 11 is arranged between the support frame 11 and the cushion support 10 or on the support frame 11.

Further, the buffer mechanism 22 comprises a first buffer body 23 and a second buffer body 24 which are movably connected in the axial direction, the first buffer body 23 is connected with the seat cushion support 10, the second buffer body 24 is connected with the support frame 11, a spring 25 is arranged between the first buffer body 23 and the second buffer body 24, one end of the spring 25 acts on the first buffer body 23, and the other end of the spring 25 acts on the second buffer body 24; first buffer 23 and second buffer 24 cup joint each other, first buffer 23 is articulated mutually with cushion support 10, second buffer 24 is articulated mutually with support frame 11, the pin joint of second buffer 24 and support frame 11 is promptly the third hinge point 14, first buffer 23 and the relative activity of second buffer 24 here cup joint, when spring 25 compresses, the degree of depth that both cup joints increases, when spring 25 resets, the degree of depth that both cup joints reduces to realize the buffering, and first buffer 23 is articulated mutually with cushion support 10 and can makes support frame 11 turn over to be parallel with handle frame 9, further reduces folding size.

Wherein the locking structure 16 is arranged between the handle frame 9 and the wheel carrier 3; the locking structure 16 comprises at least one locking plate 26 arranged on the wheel support 3 and at least one locking pull pin 27 arranged on the handle frame 9, the locking plate 26 and the locking pull pin 27 are arranged in a one-to-one correspondence mode, the locking pull pin 27 comprises a pin 28 and a cam lock handle 30 hinged to the pin 28, a locking notch 29 for the pin 28 to enter and exit is formed in the locking plate 26, the locking plate 26 is fixed on the handle frame 9 through the locking pull pin 27 after the pin 28 enters the locking notch 29 and the cam lock handle 30 rotates, the cam lock handle 30 rotates during folding, acting force between the locking plate 26 and the locking pull pin 27 is reduced, the locking notch 29 can be separated from the pin 28 after the wheel support 3 rotates, and rotating folding of the wheel support 3 is achieved.

The locking structure 16 further comprises a safety pin 31, at least one first positioning plate 32 is fixedly arranged on the handle frame 9, a pin hole 33 is formed in the first positioning plate 32, at least one second positioning plate 34 is fixedly arranged on the wheel support 3, a positioning notch 35 for the safety pin 31 to go in and out is formed in the second positioning plate 34, the safety pin 31 penetrates through the pin hole 33, locking knobs 36 are respectively arranged at two ends of the safety pin 31, when the safety pin 31 enters the positioning notch 35 and the locking knob 36 rotates, the locking knob 36 locks the first positioning plate 32 and the second positioning plate 34, and when the safety pin 31 enters the positioning notch 35 and the locking knob 36 rotates, axial displacement is carried out through rotation on the safety pin 31 to clamp the first positioning plate 32 and the second positioning plate 34, locking of positioning after the wheel support 3 and the handle frame 9 are unfolded is achieved, and stability of the structure under the running state is further improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the foldable frame 1, the wheel 2, the wheel bracket 3, the front wheel bracket 4, the rear wheel bracket 5, the one-way bending limiting structure 6, the first abutting surface 7, the second abutting surface 8, the handle frame 9, the seat cushion bracket 10, the supporting frame 11, the first hinge point 12, the second hinge point 13, the third hinge point 14, the fourth hinge point 15, the locking structure 16, the bifurcated portion 17, the first leg portion 18, the second leg portion 19, the locking groove 20, the locking pin 21, the buffer mechanism 22, the first buffer body 23, the second buffer body 24, the spring 25, the locking plate 26, the locking pull pin 27, the pin column 28, the locking notch 29, the cam lock handle 30, the safety pin 31, the first positioning plate 32, the pin hole 33, the second positioning plate 34, the positioning notch 35, the locking knob 36, and the like are used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A vertical folding electric bicycle comprises a folding frame (1), and is characterized in that at least one wheel (2) is arranged at the front part of the folding frame (1), at least one wheel (2) is arranged at the rear part of the folding frame (1), the total number of the wheels (2) on the folding frame (1) is not less than three, and when the folding frame (1) is folded from the rear part to the front part, at least three wheels (2) are gathered together, and the contact points of the gathered wheels (2) are all positioned on the same plane to form a standing support;

the foldable bicycle frame (1) comprises a bicycle wheel support (3), the bicycle wheel support (3) comprises a front bicycle wheel support (4) and a rear bicycle wheel support (5), the front bicycle wheel support (4) is hinged with the rear bicycle wheel support (5), at least one bicycle wheel (2) is arranged on the front bicycle wheel support (4), at least one bicycle wheel (2) is arranged on the rear bicycle wheel support (5), the total number of the bicycle wheels (2) on the front bicycle wheel support (4) and the rear bicycle wheel support (5) is not less than three, and a one-way bending limiting structure (6) is arranged between the front bicycle wheel support (4) and the rear bicycle wheel support (5);

the one-way bending limiting structure (6) comprises a first abutting surface (7) and a second abutting surface (8), wherein the first abutting surface (7) is arranged at the rear end of the front wheel support (4) respectively, the second abutting surface (8) is arranged at the front end of the rear wheel support (5), the first abutting surface (7) and the second abutting surface (8) can be mutually matched when the front wheel support (4) and the rear wheel support (5) are positioned on the same straight line, and a hinge point of the front wheel support (4) and the rear wheel support (5) is positioned on the lower side of the joint of the front wheel support (4) and the rear wheel support (5);

the foldable bicycle frame (1) further comprises a handle frame (9), a seat cushion support (10) and a support frame (11), one end of the seat cushion support (10) is hinged to the middle of the handle frame (9) to form a first hinge point (12), the lower end of the handle frame (9) is hinged to one end of the wheel support (3) to form a second hinge point (13), one end of the support frame (11) is hinged to the middle of the seat cushion support (10) to form a third hinge point (14), the other end of the support frame (11) is hinged to the middle of the wheel support (3) to form a fourth hinge point (15), the first hinge point (12), the second hinge point (13), the third hinge point (14) and the fourth hinge point (15) are four vertexes of a quadrangle respectively, and a locking structure (16) is arranged between at least two of the handle frame (9), the seat cushion support (10), the wheel support (3) and the support frame (11);

the locking structure (16) is arranged between the handle frame (9) and the wheel bracket (3); the locking structure (16) comprises at least one locking plate (26) arranged on the wheel bracket (3) and at least one locking pull pin (27) arranged on the handle frame (9), the locking plate (26) and the locking pull pin (27) are arranged in a one-to-one correspondence manner, the locking pull pin (27) comprises a pin column (28) and a cam lock handle (30) hinged on the pin column (28), a lock opening (29) for the pin column (28) to go in and out is formed in the locking plate (26), and after the pin column (28) enters the lock opening (29) and the cam lock handle (30) rotates, the locking plate (26) is fixed on the handle frame (9) by the locking pull pin (27); the locking structure (16) further comprises a safety pin (31), at least one first positioning plate (32) is fixedly arranged on the handle frame (9), a pin hole (33) is formed in the first positioning plate (32), at least one second positioning plate (34) is fixedly arranged on the wheel support (3), a positioning notch (35) for the safety pin (31) to go in and out is formed in the second positioning plate (34), the safety pin (31) penetrates through the pin hole (33), locking knobs (36) are respectively arranged at two ends of the safety pin (31), and the first positioning plate (32) and the second positioning plate (34) are locked by the locking knobs (36) after the safety pin (31) enters the positioning notch (35) and the locking knobs (36) rotate;

the cushion is characterized in that a buffer mechanism (22) which buffers along the axial direction of the support frame (11) is arranged between the support frame (11) and the cushion support (10) or on the support frame (11).

2. The vertical folding electric bicycle according to claim 1, characterized in that the first (7) and the second (8) abutment surfaces are stepped respectively.

3. The vertical folding electric bicycle according to claim 1, characterized in that the front wheel bracket (4) is provided with two wheels (2) at the front end, and the rear wheel bracket (5) is provided with one wheel (2) at the rear end.

4. The vertical folding electric bicycle according to claim 1, wherein the lower end of the supporting frame (11) is provided with a bifurcated part (17), the bifurcated part (17) comprises a first foot part (18) and a second foot part (19), the first foot part (18) is hinged with the front wheel bracket (4), a hinge point of the first foot part (18) and the front wheel bracket (4) is a fourth hinge point (15), the lower end of the second foot part (19) is provided with a locking groove (20) with a downward opening, the rear wheel bracket (5) is provided with a locking pin (21), and the locking pin (21) enters the locking groove (20) when the front wheel bracket (4) and the rear wheel bracket (5) are positioned on the same straight line.

5. The vertical folding electric bicycle according to claim 1, wherein the buffer mechanism (22) comprises a first buffer body (23) and a second buffer body (24) which are axially movably connected, the first buffer body (23) is connected with the cushion bracket (10), the second buffer body (24) is connected with the supporting frame (11), a spring (25) is arranged between the first buffer body (23) and the second buffer body (24), one end of the spring (25) acts on the first buffer body (23), and the other end acts on the second buffer body (24); the first buffer body (23) and the second buffer body (24) are mutually sleeved, the first buffer body (23) is hinged to the cushion support (10), the second buffer body (24) is hinged to the support frame (11), and the hinge point of the second buffer body (24) and the support frame (11) is the third hinge point (14).