A vehicle parking brake operating mechanism

Abstract

This utility model relates to the automotive field, and more particularly to a parking brake control mechanism for automobiles. It includes a brake box, a rotating shaft rotatably connected inside the brake box, a winch fixedly connected to the outer wall of the rotating shaft, the winch located outside the brake box, and a parking cable wound around the winch. A through slot is formed at the upper end of the brake box. An operating module for controlling the parking of the vehicle is installed inside the brake box. A locking mechanism for locking the operating module is provided on one side of the operating module. An L-shaped transmission rod is installed within the locking mechanism, the transmission rod is adapted to the through slot, and a push plate for moving the transmission rod is provided at the upper end of the transmission rod. Compared with traditional handle-type parking brakes, this utility model uses a crank handle to drive the brake shaft to rotate, and a precise bevel gear transmission structure controls the rotation of the rotating shaft, resulting in more accurate operation. Simultaneously, the return spring and rack / spur gear meshing design in the locking mechanism ensures a stable lock in the parking state and automatically resets when the parking brake is released, making operation simple.

Description

Technical Field

[0001] This utility model relates to the automotive field, and in particular to a parking brake control mechanism for automobiles. Background Technology

[0002] Automotive parking brake systems are mainly divided into three categories: lever-type, foot-operated, and electronic parking brake (EPB). Among them, lever-type parking brakes are widely used in various vehicle types, especially in economy vehicles, due to their low cost, simple and reliable structure, and intuitive operation.

[0003] However, traditional lever-type parking brakes suffer from insufficient control precision. The tension of the parking cable is difficult to control precisely, increasing the risk of parking failure. In addition, the ratchet and pawl locking structure used in traditional lever-type parking brakes has poor stability, making it easy for the parking position to loosen. Furthermore, the operation steps of traditional lever-type parking brakes are relatively cumbersome and inconvenient.

[0004] Therefore, in view of the problems of traditional hand-operated car parking brakes, such as difficulty in adjusting the tension of the parking cable, poor stability of the locking structure and easy loosening, and cumbersome operation steps, a car parking brake control mechanism can be designed, which not only makes the operation more convenient and accurate, but also ensures the stable locking of the parking state. Utility Model Content

[0005] To overcome the problems of traditional lever-type car parking brakes, such as difficulty in adjusting the tension of the parking cable, poor stability of the locking structure which is prone to loosening, and cumbersome operation procedures.

[0006] The technical solution of this utility model is as follows: a car parking brake control mechanism, including a brake box, a rotating shaft rotatably connected inside the brake box, a winch fixedly connected to the outer wall of the rotating shaft, the winch being located outside the brake box, a parking cable wound on the winch, a through groove being opened through the upper end of the brake box, an operation module for controlling the car parking being provided inside the brake box, a locking mechanism for locking the operation module being provided on one side of the operation module, an L-shaped transmission rod being provided inside the locking mechanism, the transmission rod being adapted to the through groove, and a push plate for moving the transmission rod being provided at the upper end of the transmission rod.

[0007] Preferably, the operating module includes a brake shaft, the upper end of the brake box is rotatably connected to the brake shaft, the lower end of the brake shaft extends into the brake box, the upper end of the brake shaft is provided with a crank handle, and a transmission structure is provided between the brake shaft and the rotating shaft.

[0008] Preferably, the transmission structure includes a driving bevel gear, a driving bevel gear fixedly connected to the outer wall of the transmission shaft, a driven bevel gear fixedly connected to the outer wall of the rotating shaft, and the driving bevel gear and the driven bevel gear meshing with each other.

[0009] Preferably, the locking mechanism includes a return spring, a return spring is provided on one inner wall of the brake box, a rack is provided at one end of the return spring, one end of the rack is connected to one end of the transmission rod, and a spur gear adapted to the rack is provided on the outer wall of the rotating shaft, and the rack and the spur gear are meshed together.

[0010] Preferably, limit plates are provided on both the front and rear sides of the brake box, and the rack is slidably connected between the two limit plates.

[0011] Preferably, the side end of the rack is integrally fixedly connected with a protrusion, and the inner wall of the limiting plate is provided with a sliding groove that matches the protrusion, and the protrusion and the sliding groove are slidably connected.

[0012] Preferably, one side of the outer wall of the push plate is provided with anti-slip protrusions, which are distributed along the surface of the push plate.

[0013] The beneficial effects of this utility model are as follows: Compared with the traditional handle-type parking brake, this solution uses a crank handle to drive the brake shaft to rotate, and controls the rotation of the shaft through a precise bevel gear transmission structure, making the operation more accurate. At the same time, the reset spring and the meshing design of the rack and spur gear in the locking mechanism ensures a stable lock in the parking state, and can automatically reset when the parking is released, making the operation simple. Attached Figure Description

[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of the vehicle parking brake control mechanism of this utility model.

[0015] Figure 2 The diagram shown is a two-dimensional structural schematic of the vehicle parking brake control mechanism of this utility model.

[0016] Figure 3 The diagram shown is an enlarged view of point A of the vehicle parking brake control mechanism of this utility model.

[0017] Figure 4 The diagram shown is a three-dimensional structural schematic of the operation module of the vehicle parking brake control mechanism of this utility model.

[0018] Figure 5 The diagram shown is a three-dimensional structural schematic of the locking mechanism of the vehicle parking brake control mechanism of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Brake box; 2. Rotating shaft; 3. Winch; 4. Through groove; 5. Transmission rod; 6. Push plate; 7. Brake shaft; 8. Handle; 9. Driving bevel gear; 10. Driven bevel gear; 11. Return spring; 12. Rack; 13. Spur gear; 14. Limiting plate; 15. Protrusion; 16. Slide groove; 17. Anti-slip protrusion. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 - Figure 5 This utility model provides an embodiment of a car parking brake control mechanism, including a brake housing 1, a rotating shaft 2 rotatably connected inside the brake housing 1, a winch 3 fixedly connected to the outer wall of the rotating shaft 2, the winch 3 being located outside the brake housing 1, a parking cable wound on the winch 3, a through groove 4 penetrating the upper end of the brake housing 1, an operation module for controlling the car parking being provided inside the brake housing 1, a locking mechanism for locking the operation module being provided on one side of the operation module, an L-shaped transmission rod 5 being provided inside the locking mechanism, the transmission rod 5 being adapted to the through groove 4, and a push plate 6 for moving the transmission rod 5 being provided at the upper end of the transmission rod 5, the brake housing 1 providing a closed space. The rotating shaft 2 is rotatably connected inside the brake housing 1 and serves as the support shaft for the rotation of the winch 3. The winch 3 is designed with winding grooves for winding the parking cable. When the rotating shaft 2 rotates, the winch 3 rotates accordingly, thereby tightening or loosening the parking cable to achieve the functions of parking and releasing the parking. The operating module is located inside the brake housing 1 and is a component used to control the parking of the vehicle. When the operating module is operated, it can drive the rotating shaft 2 to rotate, thereby controlling the rotation of the winch 3. The locking mechanism is used to lock the operating module to ensure the stability of the parking state. The upper end of the transmission rod 5 is provided with a push plate 6. By pushing the push plate 6, the transmission rod 5 can be moved, thereby controlling the locking and unlocking states of the locking mechanism.

[0022] Please see Figure 1 and Figure 4 In this embodiment, the operation module includes a brake shaft 7. The upper end of the brake housing 1 is rotatably connected to the brake shaft 7, and the lower end of the brake shaft 7 extends into the brake housing 1. A crank handle 8 is provided at the upper end of the brake shaft 7. A transmission structure is provided between the brake shaft 7 and the rotating shaft 2. The transmission structure includes a driving bevel gear 9. The driving bevel gear 9 is fixedly connected to the outer wall of the transmission shaft, and the driven bevel gear 10 is fixedly connected to the outer wall of the rotating shaft 2. The driving bevel gear 9 and the driven bevel gear 10 are meshed together. The crank handle 8 is provided at the upper end of the brake shaft 7 and is a component for manually operating the brake shaft 7. By cranking the crank handle 8, the brake shaft 7 can be driven to rotate, and then the rotation of the rotating shaft 2 can be controlled through the transmission structure. The tooth profile of the driving bevel gear 9 is precisely designed so that it can mesh well with the driven bevel gear 10. When the brake shaft 7 rotates, the driving bevel gear 9 rotates accordingly, driving the driven bevel gear 10 to rotate, thereby driving the rotating shaft 2 to rotate.

[0023] Please see Figure 1 and Figure 5In this embodiment, the locking mechanism includes a return spring 11. A return spring 11 is provided on one inner wall of the brake housing 1. A rack 12 is provided at one end of the return spring 11, and one end of the rack 12 is connected to one end of the transmission rod 5. A spur gear 13 adapted to the rack 12 is provided on the outer wall of the rotating shaft 2. The rack 12 and the spur gear 13 are meshed together. Limiting plates 14 are provided on both the front and rear sides of the brake housing 1. The rack 12 is slidably connected between the two limiting plates 14. A protrusion 15 is integrally fixedly connected to the side end of the rack 12. A groove 16 adapted to the protrusion 15 is provided on the inner wall of the limiting plate 14. The protrusion 15 and the groove 16 are slidably connected. An anti-slip protrusion 17 is provided on one outer wall of the push plate 6, and the anti-slip protrusion 17 is distributed along the surface of the push plate 6. One end of the return spring 11 is connected to the rack 12, providing a return force to the rack 12 and ensuring that the rack 12 can automatically return to its initial position. When the transmission rod 5 moves, the rack 12 moves accordingly, thereby disengaging the rack 12 from the spur gear 13, which facilitates the rotation of the spur gear 13. When the push plate 6 is released, the return spring 11 causes the rack 12 to return to its original position, thereby engaging the rack 12 with the spur gear 13, thus fixing the spur gear 13 and the rotating shaft 2. At the same time, limit plates 14 are provided on both the front and rear sides of the brake box 1 to limit the movement of the rack 12. The protrusion 15 is slidably connected to the slide groove 16 to ensure the stability of the rack 12's movement. Anti-slip protrusions 17 are provided on one outer wall of the push plate 6. The protrusions are distributed along the surface of the push plate 6, increasing the friction between the hand and the push plate 6 and improving the safety of operation.

[0024] During operation, push plate 6 is first pushed to move transmission rod 5, which in turn moves rack 12 and presses return spring 11. Then, turn handle 8 to drive brake shaft 7 to rotate, which in turn drives drive bevel gear 9 to rotate. Through the meshing of gears, driven bevel gear 10 rotates accordingly, which in turn drives shaft 2 to rotate. Winch 3 also rotates, tightening parking cable. Then, push plate 6 is released, and return spring 11 causes rack 12 to return to its original position, so that rack 12 re-meshes with spur gear 13, thereby fixing spur gear 13 and locking shaft 2 to achieve parking function.

[0025] Through the above steps, compared with the traditional lever-type parking brake, this solution uses a crank handle 8 to drive the brake shaft 7 to rotate, and controls the rotation of the rotating shaft 2 through a precise bevel gear transmission structure, making the operation more accurate. At the same time, the meshing design of the return spring 11, rack 12, and spur gear 13 in the locking mechanism ensures a stable lock in the parking state, and can automatically reset when the parking is released, making the operation simple. It solves the problems of traditional lever-type car parking brakes, such as difficulty in adjusting the tension of the parking cable, poor stability of the locking structure and easy loosening, and cumbersome operation steps.

Claims

1. A kind of automobile parking brake operating mechanism, including brake box (1), rotationally connected with rotating shaft (2) in brake box (1), the outer wall of rotating shaft (2) is fixedly connected with winch (3), winch (3) is located at the outside of brake box (1), and parking cable is wound on winch (3);It is characterized by: A through groove (4) is provided at the upper end of the brake box (1). An operation module for controlling the parking of the car is provided inside the brake box (1). A locking mechanism for locking the operation module is provided on one side of the operation module. An L-shaped transmission rod (5) is provided inside the locking mechanism. The transmission rod (5) is adapted to the through groove (4) and a push plate (6) for moving the transmission rod (5) is provided at the upper end of the transmission rod (5).

2. The automobile parking brake operating mechanism according to claim 1, characterized by: The operating module includes a brake shaft (7), the upper end of the brake box (1) is rotatably connected to the brake shaft (7), the lower end of the brake shaft (7) extends into the brake box (1), the upper end of the brake shaft (7) is provided with a crank handle (8), and a transmission structure is provided between the brake shaft (7) and the rotating shaft (2).

3. The vehicle parking brake control mechanism according to claim 2, characterized in that: The transmission structure includes a driving bevel gear (9), the outer wall of the transmission shaft is fixedly connected to the driving bevel gear (9), the outer wall of the rotating shaft (2) is fixedly connected to the driven bevel gear (10), and the driving bevel gear (9) and the driven bevel gear (10) are meshed together.

4. The vehicle parking brake control mechanism according to claim 3, characterized in that: The locking mechanism includes a return spring (11). The return spring (11) is provided on the inner wall of one side of the brake box (1). A rack (12) is provided at one end of the return spring (11). One end of the rack (12) is connected to one end of the transmission rod (5). A spur gear (13) adapted to the rack (12) is provided on the outer wall of the rotating shaft (2). The rack (12) and the spur gear (13) are meshed and connected.

5. The vehicle parking brake control mechanism according to claim 4, characterized in that: Limiting plates (14) are provided on both the front and rear sides of the brake box (1), and the rack (12) is slidably connected between the two limiting plates (14).

6. The vehicle parking brake control mechanism according to claim 5, characterized in that: The side end of the rack (12) is integrally fixedly connected with a protrusion (15), and the inner wall of the limiting plate (14) is provided with a sliding groove (16) that matches the protrusion (15). The protrusion (15) and the sliding groove (16) are slidably connected.

7. The vehicle parking brake control mechanism according to claim 6, characterized in that: The outer wall of one side of the push plate (6) is provided with anti-slip protrusions (17), which are distributed along the surface of the push plate (6).

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