Steering device of electro-tricycle

Abstract

The utility model discloses a steering device of an electro-tricycle, which solves the problem that the action stability of the existing steering device is relatively poor, and adopts the technical scheme that the steering device of the electro-tricycle comprises a handlebar shaft and a handlebar pipe which are coaxially arranged, and the lower end of the handlebar shaft is connected with a front fork. The steering wheel is rotatably arranged on the faucet pipe, a transmission shaft extending downwards is arranged on the steering wheel, a gear is arranged at the lower end of the transmission shaft, a transmission ring is arranged at the upper end of the faucet shaft, a transmission air opening is formed in the transmission ring, the gear extends into the transmission air opening, and a plurality of transmission teeth used for being meshed with the gear are arranged on the inner side wall of the transmission air opening. Under the driving of the steering wheel, the gear enables the handlebar shaft to drive the front fork to rotate through the transmission ring.

Description

Technical Field

[0001] The utility model relates to a steering device, in particular to a steering device which is applied to an electric tricycle and is used for realizing the steering of the tricycle. Background Art

[0002] Electric tricycles are used to carry people and goods, providing convenience for people's travel. The structure of the electric tricycle includes three wheels arranged on the lower side of the chassis, and the three wheels are arranged in a triangle, wherein the front wheel is located at the front side, and the other two are arranged in parallel at the rear side. In the tricycle, a steering device is usually provided at the front side position, and the steering device corresponds to the front wheel arrangement. The steering of the front wheel is achieved by manipulating the steering device, and then the lane change and steering of the tricycle as a whole is achieved. The main structure of the steering device in the existing tricycle is a rod-type faucet, which is directly fixed to the upper end of the faucet shaft, and the steering of the tricycle is achieved by pulling the faucet. The common steering device of this kind in the existing tricycle has a relatively simple structure, but the grade is not high. Moreover, during the operation process, turning is relatively urgent. Combined with the low stability of the tricycle itself, the stability of the tricycle equipped with such a steering device is relatively low during driving, so there will be certain safety hazards during driving. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide an electric tricycle steering device for realizing the steering of the electric tricycle. The steering device can realize the smooth steering of the electric tricycle, which is beneficial to improving the driving safety of the electric vehicle.

[0004] In order to solve the technical problems, the technical solution of the utility model is: a steering device for an electric tricycle, comprising a coaxially arranged faucet shaft and a faucet tube, the lower end of the faucet shaft is connected to a front fork, and is characterized in that a steering wheel is rotatably arranged on the faucet tube, the steering wheel is provided with a transmission shaft extending downward, a gear is provided at the lower end of the transmission shaft, a transmission ring is connected to the upper end of the faucet shaft, a transmission opening is provided in the transmission ring, the gear extends into the transmission opening, and a plurality of transmission teeth for meshing with the gear are provided on the inner side wall of the transmission opening. Driven by the steering wheel, the gear realizes the rotation of the front fork driven by the faucet shaft through the transmission ring.

[0005] When the electric vehicle is turned, the front fork can be driven to deflect the front wheel by turning the steering wheel, thereby completing the turning of the electric tricycle. There is a transmission speed ratio between the transmission ring and the gear, which can achieve slowdown and smooth transmission.

[0006] Furthermore, the transmission ring is a strip-shaped body, which is made into an arc shape. At both ends of the transmission ring, a connection part is respectively formed, and the two connection parts are connected to a cylindrical connection ring, and the connection ring is fixedly connected to the transmission shaft. With the transmission ring in this structural form, the structure is simple and can well meet the requirements for the transmission of the faucet shaft.

[0007] Furthermore, the connection part is inclined so that the position of the connection ring is higher than that of the transmission ring. The overall position of the connection ring should be lower than that of the connection seat, so as to facilitate the transmission arrangement between the gear and the connection ring and avoid interference between transmission components during the transmission process.

[0008] Furthermore, a vertically arranged connection bracket is fixed on the faucet pipe, and a connection seat is fixed on the connection bracket, and the transmission shaft passes through the connection seat. By providing the connection bracket, a connection seat is connected on the outside of the faucet pipe, which is also convenient for the connection and installation of the steering wheel.

[0009] Furthermore, a horizontally arranged base is fixed on the outer side surface of the faucet pipe, the bottom plate on the connection bracket is fixedly attached to the base, the cross-section of the upper end of the connection bracket is in a "C" shape, and the upper end of the connection bracket is buckled on the outer side surface of the connection seat. Through the setting of the relevant structures on the base and the connection bracket, a relatively firm support structure is constructed at the faucet pipe, which is convenient for the stable installation of the steering wheel.

[0010] Furthermore, a flexible shaft transmission structure is provided at the middle position of the transmission shaft, and the flexible shaft transmission structure is located at the position of the connection seat. The provision of the flexible shaft transmission structure facilitates the steering wheel to face the driver. Moreover, on the basis of ensuring the transmission of the steering wheel to the faucet shaft, the position of the steering wheel can be adjusted.

[0011] Furthermore, two ear plates are integrally formed on the connection seat, a connection sleeve is hinged on the two ear plates, and the upper side part of the transmission shaft at the flexible shaft transmission structure is inserted into the connection sleeve with a clearance; a strip-shaped limit hole is provided on one of the ear plates, and a limit pin is provided on the connection sleeve, and the limit pin is inserted into the limit hole with a clearance. By providing the ear plates, the movable connection of the steering wheel is facilitated, and the structure of the cooperation of the limit hole and the limit pin is provided to facilitate the adjustment of the working position of the steering wheel to meet the driving requirements of people of different heights for the tricycle, and the riding comfort of the tricycle can be effectively improved.

[0012] Furthermore, the flexible shaft transmission structure includes a universal cross joint connection structure. The setting of the universal cross joint connection structure, on the one hand, facilitates the adjustment of the position of the steering wheel, and on the other hand, after the position of the steering wheel is adjusted, the universal cross joint connection structure is not easy to collide with the connection seat, improving the smoothness of the transmission.

[0013] Compared with the prior art, the utility model has the beneficial effect that a steering device of a steering wheel type is provided in a tricycle, which improves the grade of the tricycle compared with a rod-type faucet structure. The transmission of the steering device is realized by providing a structure in which a transmission ring and a gear are meshed, and the structure is simple, and a transmission speed ratio can be effectively formed, which is beneficial to the portability and stability of the tricycle when turning, so that the tricycle is relatively stable when turning, and the safety of the tricycle when driving can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the steering device of the electric tricycle.

[0015] Figure 2 It is a partial exploded view of the steering device of the electric tricycle.

[0016] Figure 3 It is a three-dimensional diagram of a partial structure of the steering device of the electric tricycle in one direction.

[0017] Figure 4 It is a three-dimensional diagram of a partial structure of the steering device of the electric tricycle in another direction.

[0018] In the figure, 1. steering wheel; 2. transmission ring; 3. faucet pipe; 4. front wheel; 5. front fork; 6. bracket; 7. blower; 8. transmission shaft; 9. gear; 10. bottom plate; 11. base; 12. connecting part; 13. connecting frame; 14. connecting ring; 15. faucet shaft; 16. connecting seat; 17. ear plate; 18. connecting sleeve. DETAILED DESCRIPTION

[0019] In conjunction with the drawings in the specification, the steering device of the electric tricycle is used to be arranged on the inner side of the front end of the electric vehicle for the driver to operate to realize the steering of the electric vehicle. The structure of the steering device includes a faucet shaft 15 and a faucet tube 3, and the faucet shaft 15 is rotatably arranged at the axial position of the faucet tube 3. A front fork 5 is connected to the lower end of the faucet shaft 15, and the lower end of the front fork 5 is rotatably connected to the front wheel 4. The steering wheel 1 is rotatably arranged above the faucet tube 3, and the steering wheel 1 can rotate relative to the faucet tube 3. A transmission shaft 8 is fixedly connected to the steering wheel 1, and the transmission shaft 8 extends toward the lower side of the steering wheel 1.

[0020] A gear 9 is fixedly connected to the lower end of the transmission shaft 8, and a transmission ring 2 is fixedly connected to the upper end of the faucet shaft 15. A transmission hole is formed in the transmission ring 2, and the gear 9 extends into the transmission hole. A plurality of transmission teeth for transmission are formed on the inner wall of the transmission hole. The transmission teeth are arranged in accordance with the direction of the inner wall of the transmission hole, and the gear 9 meshes with these transmission teeth. Driven by the steering wheel 1, the gear 9 realizes the faucet shaft 15 driving the front fork 5 to rotate through the transmission teeth on the transmission ring 2.

[0021] As shown in the figure, the transmission ring 2 is a strip-shaped body, which is bent into an arc shape, usually a semi-circular shape. At both ends of the transmission ring 2, a connecting portion 12 is respectively formed. The two connecting portions 12 are connected to the cylindrical connecting ring 14. The transmission ring 2, the connecting portion 12 and the connecting ring 14 are integrally formed. The connecting ring 14 is fixedly connected to the transmission shaft 8, and the transmission ring 2 is offset to the outside of the transmission shaft 8. The connecting portion 12 and the connecting ring 14 have the same lateral dimension. The connecting portion 12 is inclined, so that the position of the connecting ring 14 is higher than the position of the transmission ring 2. The gear 9 extends into the position of the transmission ring 2 and is used to mesh with the transmission teeth on the transmission ring 2.

[0022] A connecting frame 13 arranged vertically is fixed on the faucet pipe 3. A connecting seat 16 is fixed on the connecting frame 13. The connecting seat 16 is a hollow cylindrical shape. The transmission shaft 8 passes through the connecting seat 16. Two ear plates 17 are integrally formed on the connecting seat 16. A connecting sleeve 18 is hinged on the two ear plates 17. The connecting sleeve 18 is a cylindrical shape. The steering wheel 1 is rotatably connected to the connecting sleeve 18. The upper side part of the transmission shaft 8 in the flexible shaft transmission structure is inserted into the connecting sleeve 18 with a gap. A strip-shaped limit hole is provided on one of the ear plates 17. The limit hole is approximately arranged in a horizontal direction. A limit pin protrudes on the connecting sleeve 18. The limit pin is inserted into the limit hole with a gap. The steering wheel 1 can adjust its position within the length range of the limit hole.

[0023] A horizontally arranged base 11 is welded and fixed on the outer side surface of the faucet pipe 3. The base 11 is a hollow square pipe. A bottom plate 10 is welded and fixed at the lower end of the connecting frame 13. The bottom plate 10 is welded and fixed to the upper surface of the base 11 in a fitting manner. The cross-section of the upper end of the connecting frame 13 is in a "C" shape. The upper end of the connecting frame 13 is buckled on the outer side surface of the connecting seat 16 by welding.

[0024] A flexible shaft transmission structure is provided at the middle position of the transmission shaft 8. The flexible shaft transmission structure is located at the position of the connecting seat 16. The flexible shaft transmission structure can be a steel wire rope. The flexible shaft transmission structure shown in the figure is a universal cross connection structure. The universal cross connection structure includes fork heads arranged opposite to each other. The two fork heads are staggered by 90 degrees. A connecting block is arranged between the two fork heads. The two fork heads are respectively movably connected to the connecting block through a connecting pin. The two connecting pins are arranged in a "cross" shape.

[0025] In order to defog the glass on the front side of the tricycle or blow air towards the driver, a blower 7 is provided on the front side of the faucet pipe 3 through a bracket 6. The blower 7 is located under the instrument panel of the tricycle.

Claims

1. A steering device for an electric tricycle, comprising a coaxially arranged faucet shaft and a faucet tube, wherein the lower end of the faucet shaft is connected to a front fork, characterized in that: The steering wheel is rotatably arranged on the head pipe. A transmission shaft extends downward from the steering wheel. A gear is provided at the lower end of the transmission shaft. A transmission ring is connected to the upper end of the head shaft. A transmission opening is provided in the transmission ring. The gear extends into the transmission opening. A number of transmission teeth for meshing with the gear are provided on the inner side wall of the transmission opening. Driven by the steering wheel, the gear drives the head shaft to drive the front fork to rotate through the transmission ring.

2. The electric tricycle steering device according to claim 1, characterized in that: The transmission ring is a strip-shaped body, which is made into an arc shape. Connection parts are respectively formed at both ends of the strip-shaped body. The two connection parts are connected to a cylindrical connection ring, and the connection ring is fixedly connected to the transmission shaft.

3. The electric tricycle steering device according to claim 2, characterized in that: The connection parts are arranged obliquely, so that the position of the connection ring is higher than the position of the transmission ring.

4. The electric tricycle steering device according to claim 1, 2 or 3, characterized in that: A vertically arranged connection frame is fixed on the head pipe. A connection seat is fixed on the connection frame, and the transmission shaft passes through the connection seat.

5. The electric tricycle steering device according to claim 4, characterized in that: A horizontally arranged base is fixed on the outer side surface of the head pipe. The bottom plate on the connection frame is fixedly attached to the base. The cross section of the upper end of the connection frame is in a "匚" shape, and the upper end of the connection frame is buckled on the outer side surface of the connection seat.

6. The electric tricycle steering device according to claim 4, characterized in that: A flexible shaft transmission structure is provided at the middle position of the transmission shaft, and the flexible shaft transmission structure is located at the position of the connection seat.

7. The electric tricycle steering device according to claim 6, characterized in that: Two ear plates are integrally formed on the connection seat. A connection sleeve is hinged on the two ear plates. The upper side part of the transmission shaft at the flexible shaft transmission structure is inserted into the connection sleeve with a clearance; A strip-shaped limit hole is provided on one of the ear plates, and a limit pin is provided on the connection sleeve, and the limit pin is inserted into the limit hole with a clearance.

8. The electric tricycle steering device according to claim 7, characterized in that: The flexible shaft transmission structure includes a universal cross joint connection structure.

9. The electric tricycle steering device according to claim 1, 2 or 3, characterized in that: A blower is provided outside the head pipe.

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