CN214420643U

CN214420643U - Handlebar capable of controlling power cut-off and connection of electric bicycle

Info

Publication number: CN214420643U
Application number: CN202120212712.5U
Authority: CN
Inventors: 毛永波; 邵颖; 徐程; 王泽�
Original assignee: Zhejiang Police College
Current assignee: Zhejiang Police College
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-10-19
Anticipated expiration: 2031-01-26

Abstract

The utility model provides a steerable electric bicycle power cuts off handlebar with switch-on belongs to non-motor safety technical field. Comprises a handle, a pressing rod, a lifting mechanism, a metal contact, a power circuit with a V-shaped metal contact and a hollow shaft; one end of the pressing rod is connected with the handle; the hollow shaft is inserted in the handle; the lifting mechanism comprises an air chamber, a piston column and a return spring; the air chamber is fixed in an air chamber groove inside the handle; the piston column penetrates through the air chamber, a metal contact is installed at the bottom end of the piston column, the top end of the piston column is fixed on the pressing rod, and the metal contact and the V-shaped metal contact can be in contact and electrified; the piston is sleeved on the piston column, and a return spring is arranged between the limiting structure on the piston column and the bottom of the air chamber. During the use, can regard this handlebar as left handlebar, need to guarantee that the left hand correctly presses on the handlebar, just can realize power take off through rotatory right handlebar, can avoid the potential safety hazard that hand electric motor car, child are curious touching, singlehanded riding etc. brought under the circular telegram state.

Description

Handlebar capable of controlling power cut-off and connection of electric bicycle

Technical Field

The utility model relates to a steerable electric bicycle power cuts off and the handlebar of switch-on belongs to non-motor safety technical field.

Background

When the switch is turned on, the control circuit of the current electric bicycle can control the accelerating rotating handle by only using the right hand, and the acceleration is realized by the induction of the Hall element on the magnetic field.

When the electric bicycle is used, people often get off to push the electric bicycle to walk due to some special reasons such as congestion, road crossing and the like during riding; or the electric bicycle needs to be lifted up after the electric bicycle falls down. Under such circumstances, the electric vehicle is likely to accelerate due to the rotating accelerating handle when the electric bicycle is lifted or pushed to walk. Meanwhile, children and other groups without the ability to ride the electric bicycle touch the handlebar for curiosity and other reasons, so that the electric bicycle is accelerated and loses control.

During normal riding, many riders also frequently ride the bicycle with one hand, and the other hand is inserted into a pocket or used with a mobile phone, which brings great threat to the riding safety. Therefore, the situation that the electric bicycle is ridden by one hand can be effectively avoided by instantly switching off and on the power of the electric bicycle, the power can be instantly switched off to brake when danger occurs, and potential safety hazards are reduced.

Disclosure of Invention

In order to ensure that when the rotating handle is held by one hand, the power output can not be realized, reduce traffic accidents caused by mistakenly touching the acceleration switch and avoid the riding by one hand. The utility model provides a steerable electric bicycle power cuts off and the handlebar of switch-on, this handlebar uses with electric bicycle's handlebar cooperation with higher speed, guarantees to ride passerby's both hands and just can realize power switch-on and output when riding, promotes by bike the standard.

In order to achieve the above object, the utility model adopts the following technical scheme:

a handlebar capable of controlling power cut-off and power connection of an electric bicycle comprises a handle, a pressing rod, a lifting mechanism, a metal contact, a power circuit and a hollow shaft for arranging the power circuit; the power circuit is used for providing power for the electric bicycle;

one end of the pressing rod is connected with the handle, and the other end of the pressing rod is tilted upwards;

the hollow shaft is inserted into the handle, a V-shaped metal contact for cutting off a circuit is arranged on a power circuit in the hollow shaft, and a first through hole is formed in the outer wall of the hollow shaft corresponding to the position of the V-shaped metal contact; the first through hole is communicated with the inside of the handle to form an air chamber groove, and a second through hole is formed in the top of the air chamber groove;

the lifting mechanism comprises an air chamber, a piston and a piston column; the air chamber is fixed in the air chamber groove; the piston column penetrates through the first through hole and the air chamber, the bottom end of the piston column is provided with a metal contact, and the top end of the piston column is fixed on a pressing rod outside the handle; the piston is sleeved on the piston column, and an upper limit structure and a lower limit structure are respectively arranged on the upper side and the lower side of the sleeved position; and a return spring is arranged in the air chamber, one end of the return spring is fixed at the bottom of the air chamber, and the other end of the return spring is fixed on the lower limiting structure.

Compared with the prior art, the utility model has the advantages that: the utility model provides a steerable electric bicycle power cuts off with handlebar of switch-on has increased a normally open switch in current control circuit, through the cooperation action of the last press lever control metal contact of hand and normally open switch. When not exerting the effect on the pressure bar, the V type metal contact on metal contact and the normally open switch is contactless, and power circuit keeps turning off, and power can't be exported, only when riding passerby's both hands and riding, with the left hand exert the effect on the pressure bar, the V type metal contact on metal contact and the normally open switch, power circuit switch-on rotates the power handlebar this moment and realizes power take off. The utility model has the advantages of simple structure, easily operation can stop singlehanded by bike, promotes by bike the standard, reduces the potential safety hazard.

Drawings

FIG. 1 is a schematic view of a handlebar structure for controlling power on/off of an electric bicycle in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of the lifting mechanism of the handlebar in accordance with the present embodiment;

in the figure: 1-a handle; 2-pressing the lever; 3-a hollow shaft; 4-lifting mechanism, 401-piston column, 402-piston, 403-upper limit structure, 404-lower limit structure, 405-air chamber, 406-damping hole, 407-first through hole and 408-second through hole; 5-a return spring; 6-a power circuit; 601-V type metal contact; 7-a metal contact; 8-air chamber groove.

Detailed Description

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

The utility model relates to a steerable electric bicycle power cuts off and the handlebar of switch-on, increased a normally open switch among the current control circuit, realize normally opening the switch through the handlebar and cut off and the switch-on. The handlebar mainly comprises the following parts: the device comprises a handle 1, a pressing rod 2, a lifting mechanism 4, a metal contact 7, a power circuit 6 and a hollow shaft 3 for arranging the power circuit; the power circuit is used for providing power for the electric bicycle. In the use, this handlebar generally is used for the left handlebar on the electric bicycle, the utility model discloses do not possess the limiting action to the structure of right handlebar.

The utility model discloses a main thinking is that utilize left handlebar to go up to design a push type normally open switch for control circuit keeps the off-state, guarantees to ride the people and does not export power when subjective intention of non-triggers accelerating signal, can avoid the people of riding to ride one hand simultaneously, ensures driving safety.

As shown in fig. 1, one end of the pressing rod 2 is connected to the handle 1, and the other end is tilted upward;

the hollow shaft 3 is inserted into the handle 1, a V-shaped metal contact 601 for cutting off a circuit is arranged on a power circuit 6 in the hollow shaft 3, and a first through hole 407 is formed in the outer wall of the hollow shaft 3 corresponding to the position of the V-shaped metal contact 601; the first through hole is communicated with the inside of the handle 1 to form an air chamber groove 8, and the top of the air chamber groove is provided with a second through hole 408;

as shown in fig. 2, the lifting mechanism 4 includes a gas chamber 405, a piston 402, and a piston column 401; the air chamber 405 is fixed in the air chamber groove 8; the piston column 401 passes through the first through hole 407 and the air chamber 405, the bottom end of the piston column is provided with a metal contact 7, the metal contact 7 is preferably in a trapezoidal structure, and is matched with a V-shaped metal contact 601 in a control circuit to realize a passage; the top end of the pressing rod is fixed on a pressing rod 2 outside the handle 1; the piston 402 is sleeved on the piston column 401, and an upper limit structure 403 and a lower limit structure 404 are respectively arranged on the upper side and the lower side of the sleeved position; a return spring 5 is arranged in the air chamber 405, one end of the return spring is fixed at the bottom of the air chamber 405, and the other end of the return spring is fixed on the lower limiting structure 404.

In one embodiment of the present invention, the pressing rod may be a rigid member or an elastic member with a radian. When the pressing rod is rigid, one end of the pressing rod is hinged with the handle 1, the other end of the pressing rod tilts upwards, and an angle of 20-40 degrees is formed between the pressing rod and the handle. When the pressing rod is of an arc-shaped elastic structure, the pressing rod is not required to be hinged, only one end of the pressing rod needs to be fixed on the handle, the other end of the pressing rod freely tilts upwards, the arc-shaped elastic structure can be pressed downwards to drive the piston column in the lifting mechanism to move up and down.

In order to ensure that the distance of the piston column pressing downwards is determined, and avoid generating excessive pressing to damage a power circuit, the compressible distance of the return spring 5 is equal to the distance between the metal contact 7 and the V-shaped metal contact 601, and when the piston column is fully pressed, the circuit is closed.

In one embodiment of the present invention, the handle is made of plastic or rubber. The air chamber groove inside the handle is in interference fit with the air chamber. The piston 402 and the piston column 401 are in clearance fit, a plurality of damping holes 406 are formed in the circumferential direction of the piston 402, and the ascending speed and the descending speed of the piston 402 can be controlled under the action of the damping holes. The piston column is limited in motion position below through a lower limiting structure, limited in motion position above through an upper limiting structure, the lower limiting structure 404 is an annular bulge formed during piston column processing, the upper limiting structure 403 is a limiting bolt, the limiting bolt is installed in a threaded hole in the piston column, and the axial direction of the threaded hole is perpendicular to the axial direction of the piston column.

In a specific embodiment of the present invention, the handlebar is used for a left handlebar of an electric bicycle, and the conventional handlebar capable of rotating in an accelerated manner is used for a right handlebar of the electric bicycle.

When the bicycle is in an initial state, the left handle is under the action of the return spring 5, the metal contact at the bottom of the piston column is in a rising state, the power circuit is disconnected, power output cannot be completed, and the rider cannot generate accidental danger when rotating the right handle by mistake. In the intentional riding process, a rider holds the left handlebar with the left hand, presses the pressing rod 2 with the grip of the left hand to push the piston column 401 to move downwards, after the piston column moves downwards for a certain distance, the upper limit structure touches the piston, and the piston 402 moves downwards under the driving of the upper limit structure 403 until the trapezoidal metal contact 7 contacts with the V-shaped metal contact 601, so that a circuit path is realized. At this time, the right handle can be rotated to control acceleration.

When the acceleration is released, the rotating handle of the right handle can be directly loosened to stop outputting the power. Can also directly break off power circuit through left handlebar, stop output power, the concrete mode is: when the left handle pressing rod 2 is released, the piston column 401 moves upwards under the action of the return spring 5, and after the piston column moves upwards for a certain distance, the piston 402 moves upwards under the driving of the lower limiting structure 404 until the trapezoidal metal contact 7 is separated from the V-shaped metal contact 601, so that the control circuit is disconnected, and the power is released. The utility model provides a handlebar has guaranteed to ride passerby and must ride both hands, has solved the potential safety hazard that one hand was ridden.

The foregoing is illustrative of only specific embodiments of this invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims

1. A handlebar capable of controlling power cut-off and connection of an electric bicycle is characterized by comprising a handle (1), a pressing rod (2), a lifting mechanism (4), a metal contact (7), a power circuit (6) and a hollow shaft (3) for arranging the power circuit; the power circuit is used for providing power for the electric bicycle;

one end of the pressing rod (2) is connected with the handle (1), and the other end of the pressing rod is tilted upwards;

the hollow shaft (3) is inserted into the handle (1), a V-shaped metal contact (601) for cutting off a circuit is arranged on a power circuit (6) in the hollow shaft (3), and a first through hole (407) is formed in the outer wall of the hollow shaft (3) corresponding to the position of the V-shaped metal contact (601); the first through hole is communicated with the inside of the handle (1) to form an air chamber groove (8), and a second through hole (408) is formed in the top of the air chamber groove;

the lifting mechanism comprises an air chamber (405), a piston (402) and a piston column (401); the air chamber (405) is fixed in the air chamber groove (8); the piston column (401) penetrates through the first through hole (407) and the air chamber (405), the bottom end of the piston column is provided with a metal contact (7), and the top end of the piston column is fixed on the pressing rod (2) outside the handle (1); the piston (402) is sleeved on the piston column (401), and an upper limit structure (403) and a lower limit structure (404) are respectively arranged on the upper side and the lower side of the sleeved position; be equipped with return spring (5) in air chamber (405), return spring's one end is fixed in air chamber (405) bottom, and the other end is fixed on limit structure (404) down.

2. The handlebar with controllable power cut-off and switch-on of an electric bicycle as claimed in claim 1, characterized in that the compressible distance of the return spring (5) is equal to the distance between the metal contact (7) and the V-shaped metal contact (601).

3. The handlebar capable of controlling power cut-off and power on of the electric bicycle according to claim 1, wherein one end of the pressing rod (2) is hinged with the handlebar (1), the other end is tilted upwards, and an angle of 20-40 degrees is formed between the pressing rod and the handlebar.

4. The handlebar capable of controlling power on and off of the electric bicycle according to claim 1, wherein the pressing lever has an arc-shaped elastic structure, one end of the arc-shaped pressing lever is fixed to the handlebar, and the other end of the arc-shaped pressing lever is tilted upward.

5. The handlebar capable of controlling power on and off of an electric bicycle of claim 1, wherein the metal contact is of a trapezoidal structure and matches with the V-shaped metal contact.

6. The handlebar capable of controlling the power on and off of an electric bicycle as claimed in claim 1, wherein the piston is provided with a plurality of damping holes (406) along a circumferential direction.

7. The handlebar capable of controlling power on and off of the electric bicycle as claimed in claim 1, wherein the lower limit structure is an annular protrusion formed when the piston post is processed, the upper limit structure is a limit bolt installed in a threaded hole formed in the piston post, and an axial direction of the threaded hole is perpendicular to an axial direction of the piston post.

8. The handlebar of claim 1, wherein a gap is left between the piston and the piston post.

9. The handlebar capable of controlling power on and off of an electric bicycle of claim 1, wherein the air chamber is in interference fit with the air chamber slot.

10. The handlebar capable of controlling power on and off of an electric bicycle of claim 1, wherein the handlebar is made of plastic or rubber.