Automatic parking device for electric tricycle

Abstract

The utility model discloses an automatic parking device for an electric tricycle. The automatic parking device comprises an outer shell, a floating rack, a rack seat and an opening and closing mechanism. The floating rack and the rack seat are oppositely arranged in the height direction, the rack seat is slidably connected into the outer shell, one end of the rack seat is connected with the front brake pull rod, and the front brake pull rod is connected with the brake pedal. The floating rack can float up and down in the sliding direction perpendicular to the rack base, the opening and closing mechanism is arranged between the floating rack and the rack base, and tooth-shaped parts which can be meshed with each other are formed at the two ends of the outer side walls, close to each other, of the floating rack and the rack base. When the brake pedal is stepped down, the brake pedal can drive the rack seat to move forwards through the front brake pull rod, so that the tooth-shaped parts between the rack seat and the floating rack are meshed with each other. Parking operation is simplified, a sensor and a program do not need to be matched for control, applicability to different driving environments is good, the problem that a brake disc is abraded due to misoperation is solved, and the service life of a brake system is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of vehicle braking technology, and in particular to an automatic parking device for electric tricycles. Background Technology

[0002] Currently, electric tricycles are widely used in short-distance transportation and personal travel due to their affordability, ease of operation, and good cargo capacity. The parking function is crucial for ensuring the safe parking of electric tricycles.

[0003] Traditional electric tricycle parking mechanisms mostly employ simple manual mechanical methods, such as a handbrake lever connected to a steel cable. In practical use, this method is cumbersome, requiring manual pulling of the handbrake lever each time the vehicle stops, and ensuring sufficient force is applied to effectively park. Existing automatic parking systems for electric tricycles require multiple sensors to detect vehicle status and transmit signals to the electronic control unit (ECU). The ECU calculates the necessary braking force and then sends commands to the braking actuator. However, this type of parking system is relatively complex, has a slow response time, poor adaptability to complex environments, and is difficult to diagnose. Based on these existing technologies, there is an urgent need to design an automatic parking device that does not require sensors or software control. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an automatic parking device for electric tricycles, which simplifies parking operations, is well-suited to different driving environments, and solves the problem of brake disc wear caused by failure to release the handbrake while driving, thereby extending the service life of the braking system.

[0005] To achieve the above objectives, this utility model provides an automatic parking device for electric tricycles, including an outer shell and a floating rack, rack seat and opening / closing mechanism installed inside the outer shell.

[0006] The outer casing is fixed to the vehicle chassis; the floating rack and rack seat are arranged opposite each other in the height direction, and the floating rack is located at the top of the rack seat;

[0007] The rack seat is slidably connected to the outer shell, and one end of the rack seat is connected to the front brake lever of the vehicle body. The front brake lever is connected to the brake pedal via a cable.

[0008] The floating rack can float up and down along a sliding direction perpendicular to the rack seat. The opening and closing mechanism is disposed between the floating rack and the rack seat and can drive the floating rack to float up and down.

[0009] The floating rack and the rack seat have meshing toothed portions at their two ends on their outer sidewalls that are close to each other. When the brake pedal is pressed, the brake pedal can move the rack seat forward through the front brake lever, so that the toothed portions between the rack seat and the floating rack mesh with each other.

[0010] Furthermore, the opening and closing mechanism includes an opening and closing stop, a connecting shaft, a connecting block, and a transmission cable; a groove for mounting the opening and closing mechanism is formed in the middle of the outer side wall of the rack seat and the floating rack that are close to each other; the connecting shaft passes through the groove between the floating rack and the rack seat, and both ends of the connecting shaft are rotatably connected to the outer shell; one end of the opening and closing stop is fixedly sleeved on the outside of the connecting shaft, and the opening and closing stop is located in the groove between the floating rack and the rack seat; one end of the connecting shaft is fixedly connected to the connecting block, and the end of the connecting block away from the connecting shaft is connected to the vehicle's starter handle through the transmission cable.

[0011] Furthermore, the opening and closing mechanism also includes a reset spring, and a baffle is fixed to the inner wall of the outer shell. The baffle at one end of the reset spring abuts against the side wall of the connecting block, and the other end abuts against the side wall of the connecting block.

[0012] Furthermore, a return spring is provided on the top wall of the floating rack, with one end of the return spring abutting against the floating rack and the other end abutting against the inner wall of the outer casing.

[0013] Furthermore, the outer shell includes a left shell, a right shell, and a top plate. A first connecting post is provided on the inner wall of the bottom of the left shell, and a second connecting post is provided on the inner wall of the bottom plate of the right shell. A positioning rod is fixed on the outer end face of the second connecting post. A positioning slot for inserting the positioning rod is provided on the first connecting post. The tops of the left shell and the right shell are connected to both sides of the top plate by screws.

[0014] Furthermore, a guide post is fixed to the inner wall of the top plate, the reset spring is sleeved on the outside of the guide post, one end of the guide post passes through the floating rack, a limit piece is provided at the end of the guide post that passes through the floating rack, and a locking screw is threaded to the end of the guide post that passes through the floating rack. The limit piece is fixed relative to the locking screw.

[0015] Furthermore, a mounting portion is formed by protruding outward on one side of the left housing, and the connecting block and reset spring of the opening and closing mechanism are both located within the mounting portion.

[0016] The beneficial effects of this utility model are:

[0017] This utility model discloses an automatic parking device for electric tricycles. It utilizes an opening and closing mechanism connected to the starter handle to drive a floating rack up and down, switching the meshing or misalignment relationship between the floating rack and the rack seat. Then, continuous parking can be achieved simply by pressing the brake pedal, simplifying the parking operation. It does not require sensors or programs for control, has good applicability to different driving environments, and solves the problem of brake disc wear caused by not releasing the handbrake while driving, thus extending the service life of the braking system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a partial exploded view used to illustrate the internal structure of the outer shell in this utility model.

[0020] Figure 3 This is a top view of the overall structure of this utility model.

[0021] Figure 4 It is along Figure 3 A cross-sectional view along line AA in the middle.

[0022] Figure 5 yes Figure 4 A magnified view of part A in the middle.

[0023] Figure 6 It is along Figure 3 A cross-sectional view along the BB line.

[0024] Figure 7 This is a schematic diagram of the structure of this utility model after the outer shell is hidden.

[0025] Figure 8 This is a schematic diagram of the working state structure of this utility model in its natural state during actual application.

[0026] Figure 9 This is a schematic diagram of the working state of the present invention when the brake pedal is pressed in actual application.

[0027] Figure 10 This is a schematic diagram of the working state structure of the rotary starter grip in practical application of this utility model.

[0028] In the diagram: 1. Outer shell; 11. Left shell; 111. Positioning slot; 112. Mounting part; 12. Right shell; 121. Positioning rod; 13. Slide groove; 14. Top plate; 141. Guide post; 2. Floating rack; 21. Return spring; 22. Limiting plate; 23. Locking screw; 3. Rack seat; 31. Sliding convex strip; 32. Cable connector; 33. Front brake lever; 34. Brake linkage; 35. Toothed part; 36. Groove part; 4. Opening and closing mechanism; 41. Opening and closing stop; 42. Connecting shaft; 43. Connecting block; 44. Baffle; 45. Return spring; 46. Transmission cable; 5. Brake pedal; 6. Starter handle. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] This utility model discloses an automatic parking device for electric tricycles.

[0031] Reference Figures 1 to 4 An automatic parking device for an electric tricycle includes a housing 1 and a floating rack 2, a rack seat 3, and an opening / closing mechanism 4 installed within the housing 1. The housing 1 is fixed to the vehicle chassis and includes a left housing 11, a right housing 12, and a top plate 14. The left housing 11 and right housing 12 are connected to form a housing structure with an open top and closed side walls. The tops of the left housing 11 and right housing 12 are connected and fixed to the sides of the top plate 14 by screws. To ensure the stability of the housing 1 structure and ease of assembly, a first connecting post is integrally formed on the inner sidewall of the bottom of the left housing 11, and a second connecting post is integrally formed on the inner sidewall of the bottom of the right housing 12. A positioning rod 121 is integrally formed on the outer end face of the second connecting post, and a positioning slot 111 is formed on the outer end face of the first connecting post for the positioning rod 121 to be inserted. When the housing 1 is assembled and fixed, the positioning rod 121 is inserted into the positioning slot 111. Furthermore, a mounting portion 112 is formed by protruding outward from the middle of the outer side wall of the left housing 11, which provides a certain mounting space for the opening and closing mechanism 4.

[0032] Reference Figures 1 to 4 The floating rack 2 and the rack seat 3 are arranged opposite each other in the height direction, and the floating rack 2 is located at the top of the rack seat 3. The rack seat 3 is slidably connected to the outer shell 1. Sliding protrusions 31 are formed on both sides of the bottom length direction of the rack seat 3. The inner sidewalls of the left shell 11 and the right shell 12 are respectively provided with sliding grooves 13. The sliding protrusions 31 are located in the sliding grooves 13. Then the rack seat 3 is slidably connected to the inner wall of the sliding groove 13 of the outer shell 1 through the sliding protrusions 31.

[0033] Reference Figures 1 to 4The rack seat 3 has cable connectors 32 fixed at both ends by locking nuts. One end of the rack seat 3 is hinged to the front brake lever 33 on the vehicle body through the cable connector 32. The front brake lever 33 is connected to the brake pedal 5 through a cable. When the brake pedal 5 is pressed, the brake pedal 5 can drive the rack seat 3 to slide forward through the front brake lever 33. The other end of the rack seat 3 is hinged to the brake linkage 34 on the vehicle body.

[0034] Reference Figures 4 to 7 The floating rack 2 can float up and down along a sliding direction perpendicular to the rack seat 3. A return spring 21 is provided on the top wall of the floating rack 2. One end of the return spring 21 abuts against the floating rack 2, and the other end abuts against the inner wall of the outer shell 1. A guide post 141 is fixed on the inner wall of the top plate 14. The return spring 21 is sleeved on the outside of the guide post 141, which guides the extension and retraction of the return spring 21. One end of the guide post 141 passes through the floating rack 2, and the floating rack 2 can move up and down along the guide post 141, which guides the movement of the floating rack 2. A limit piece 22 is provided at the end of the guide post 141 that protrudes from the floating rack 2. A locking screw 23 is threaded to the end of the guide post 141 that protrudes from the floating rack 2. The limit piece 22 is fixed relative to the guide post 23 by the locking screw 23. The limit piece 22 limits the bottom end of the floating rack 2, preventing the floating rack 2 from detaching from the guide post 141.

[0035] Reference Figures 4 to 7 The floating rack 2 and the rack seat 3 have meshing toothed portions 35 at their two ends on their outer sidewalls. In the natural state, the toothed portions 35 between the floating rack 2 and the rack seat 3 are misaligned. When the brake pedal 5 is pressed, the front brake lever 33 can move the rack seat 3 forward, causing the toothed portions 35 between the rack seat 3 and the floating rack 2 to mesh. During the forward sliding of the rack seat 3, the toothed portions 35 on the rack seat 3 abut against the toothed portions 35 on the floating rack 2, pushing the floating rack 2 up and down without interfering with the forward sliding of the rack seat 3. When the brake pedal 5 is released, the meshing between the rack seat 3 and the floating rack 2 prevents the rack seat 3 from sliding backward, thus maintaining the parking state.

[0036] Reference Figures 4 to 7The opening and closing mechanism 4 is located between the floating rack 2 and the rack seat 3, and can drive the floating rack 2 to float up and down. The opening and closing mechanism 4 includes an opening and closing stop 41, a connecting shaft 42, a connecting block 43, a reset spring 45, and a transmission cable 46; a groove 36 for mounting the opening and closing mechanism 4 is formed in the middle of the outer side wall of the rack seat 3 and the floating rack 2, which are close to each other; the connecting shaft 42 passes through the groove 36 between the floating rack 2 and the rack seat 3, and both ends of the connecting shaft 42 are rotatably connected to the outer shell 1 through bearings; one end of the opening and closing stop 41 is fixedly sleeved on the outside of the connecting shaft 42, and the opening and closing stop 41 is located in the groove 36 between the floating rack 2 and the rack seat 3; one end of the connecting shaft 42 is fixedly connected to the connecting block 43, and the end of the connecting block 43 away from the connecting shaft 42 is connected to the vehicle's starter handle 6 through the transmission cable 46. The connecting block 43 is located inside the mounting part 112 of the left housing 11. A baffle 44 is fixed on the inner wall of the mounting part 112. The baffle 44 at one end of the reset spring 45 abuts against the connecting block 43, and the other end abuts against the side wall of the connecting block 43.

[0037] The working principle of the automatic parking device for electric tricycles according to this utility model is as follows: (Refer to...) Figure 8 When the vehicle is in a stationary and non-braking natural state, the toothed portion 35 between the rack seat 3 and the floating rack 2 is misaligned, the return spring 21 and the return spring 45 are in a natural state, and the opening and closing mechanism 4 does not push up the floating rack 2.

[0038] Reference Figure 9 When the vehicle stops, pressing the brake pedal 5 causes the rack seat 3 to move forward via the front brake lever 33, making the toothed portion 35 between the rack seat 3 and the floating rack 2 engage. When the brake pedal 5 is released, the rack seat 3 is restricted from sliding to its initial natural state due to the limiting effect of the engagement between the rack seat 3 and the floating rack 2, and the brake pedal 5 will not bounce up, thus achieving continuous parking.

[0039] Reference Figure 10When the vehicle starts running, turning the starter handle 6 causes the connecting block 43 to rotate around the center of the connecting shaft 42 via the transmission cable 46. During this process, the return spring 45 is compressed and deformed. Subsequently, the connecting block 43 drives the opening and closing stop 41 to rotate via the connecting shaft 42. During the rotation of the opening and closing stop 41, it abuts against the floating rack 2, lifting the floating rack 2. During this process, the return spring 21 is compressed and deformed. The lifting of the floating rack 2 causes it to disengage from the rack seat 3, and the brake pedal 5 pops up, releasing the vehicle's braking. At this time, releasing the starter handle 6 causes the elastic force of the return spring 21 to press down on the floating rack 2, causing it to return to its original position. The elastic force of the return spring 45 drives the connecting block 43 to return to its original position. During vehicle operation, the starter handle 6 must be kept in the rotating state to keep the opening and closing stop 41 in the state of lifting the floating rack 2, thereby preventing the floating rack 2 from engaging and locking with the rack seat 3.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic parking device for an electric tricycle, characterized by: The utility model provides a floating rack type brake pedal, including outer casing (1) and the floating rack (2) of installation in outer casing (1), rack seat (3) and open and close mechanism (4); The outer casing (1) is fixed on the chassis of a vehicle; the floating rack (2) and the rack seat (3) are oppositely arranged in the height direction, and the floating rack (2) is located on the top of the rack seat (3); The rack seat (3) is slidably connected in the outer casing (1), and one end of the rack seat (3) is connected with the front brake pull rod (33) of the vehicle body, and the front brake pull rod (33) is connected with the brake pedal (5) through a pull cable; The floating rack (2) can float up and down along the sliding direction perpendicular to the rack seat (3), and the open and close mechanism (4) is arranged between the floating rack (2) and the rack seat (3) and can drive the floating rack (2) to float up and down; The two ends of the outer side walls of the floating rack (2) and the rack seat (3) that are close to each other are formed with tooth-shaped portions (35) that can be engaged with each other; when the brake pedal (5) is stepped on, the brake pedal (5) can drive the rack seat (3) to move forward through the front brake pull rod (33), so that the tooth-shaped portions (35) between the rack seat (3) and the floating rack (2) are engaged with each other.

2. An automatic parking device for an electrically motorized tricycle according to claim 1, characterized in that: The open and close mechanism (4) includes an open and close block (41), a connecting shaft (42), a connecting block (43), and a transmission pull cable (46); the middle portions of the outer side walls of the floating rack (2) and the rack seat (3) that are close to each other are formed with recessed portions (36) for mounting the open and close mechanism (4); the connecting shaft (42) is arranged in the recessed portions (36) between the floating rack (2) and the rack seat (3), and the two ends of the connecting shaft (42) are rotatably connected with the outer casing (1); one end of the open and close block (41) is fixedly sleeved on the outside of the connecting shaft (42), and the open and close block (41) is located in the recessed portions (36) between the floating rack (2) and the rack seat (3); one end of the connecting shaft (42) is fixedly connected with the connecting block (43), and the end of the connecting block (43) away from the connecting shaft (42) is connected with the starting handle (6) of the vehicle through the transmission pull cable (46).

3. An automatic parking device for an electrically motorized tricycle according to claim 2, characterized in that: The open and close mechanism (4) further includes a reset spring (45), the inner wall of the outer casing (1) is fixed with a block (44), one end of the reset spring (45) abuts against the block (44), and the other end abuts against the side wall of the connecting block (43).

4. An automatic parking device for an electrically motorized tricycle according to claim 3, characterized in that: The top wall of the floating rack (2) is provided with a reset spring (21), one end of the reset spring (21) abuts against the floating rack (2), and the other end abuts against the inner wall of the outer casing (1).

5. An automatic parking device for an electrically motorized tricycle according to claim 4, characterized in that: The outer casing (1) includes a left casing (11), a right casing (12), and a top plate (14), the inner wall of the bottom of the left casing (11) is provided with a first connecting column, the inner wall of the bottom plate of the right casing (12) is provided with a second connecting column, the outer end surface of the second connecting column is fixed with a positioning insertion rod (121), the first connecting column is provided with a positioning insertion groove (111) for inserting the positioning insertion rod (121), and the top portions of the left casing (11) and the right casing (12) are connected with the two sides of the top plate (14) through screws.

6. An automatic parking device for an electrically motorized tricycle according to claim 5, characterized in that: The inner wall of the top plate (14) is fixed with a guide column (141), the reset spring (21) is sleeved outside the guide column (141), one end of the guide column (141) penetrates the floating rack (2), the end of the guide column (141) penetrating the floating rack (2) is provided with a limiting sheet (22), and the end of the guide column (141) penetrating the floating rack (2) is threadedly connected with a locking screw (23); the limiting sheet (22) is opposite fixed through the locking screw (23).

7. An automatic parking device for an electrically motorized tricycle according to claim 5, characterized in that: One side of the left shell (11) is outwardly protruded to form a mounting portion (112), and the connecting block (43) and the reset spring sheet (45) of the opening and closing mechanism (4) are located in the mounting portion (112).

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