High-stability hand brake control mechanism assembly

Abstract

The utility model relates to the technical field of automobile parts, in particular to a high-stability hand brake control mechanism assembly. According to the technical scheme, the device comprises a handle, a rotating frame and a fixing frame, the rotating frame is rotationally installed in the fixing frame through a rotating shaft, a ratchet wheel is fixedly installed in the fixing frame, a pawl is rotationally installed in the rotating frame through a first rotating shaft, and the handle is fixedly connected to one side of the outer surface of the rotating frame; a connecting rod is slidably installed in the handle and penetrates through the two ends of the handle, the end, located in the rotating frame, of the connecting rod is rotationally connected with a pawl through a second rotating shaft, a spiral spring is spirally wound around the outer surface of the connecting rod, and a groove is formed in the side, away from the rotating frame, of the upper surface of the connecting rod; a U-shaped plate is arranged at the position, close to the groove, in the handle. The stability of the hand braking control mechanism can be improved, and the hand braking control mechanism can still keep a braking state under the conditions that the spiral spring loses efficacy and the connecting rod is touched by mistake.

Description

Technical Field

[0001] This utility model relates to the field of automotive component technology, specifically to a highly stable handbrake control mechanism assembly. Background Technology

[0002] The handbrake control mechanism is an important component of the vehicle's braking system. It is mainly used to prevent the vehicle from rolling when parked and to assist braking in emergency situations. It is usually composed of components such as a handbrake lever (or handle), cable, brake shoes (drum brake) or brake caliper (disc brake). When the driver pulls the handbrake lever, the force is transmitted through the cable, causing the brake shoes to open and fit against the brake drum, or causing the brake caliper to clamp the brake disc, thereby generating friction and preventing the wheels from turning.

[0003] Currently, in the process of manually pulling the lever to assist in vehicle braking, the rotated lever is fixed by the engagement of the pawl and ratchet via an internal linkage and coil spring. However, during long-term use, when the elasticity of the coil spring fails or the linkage is accidentally activated, the pawl and ratchet can easily separate, thus releasing the vehicle's braking and reducing the stability of the automatic braking assist. Therefore, we propose a highly stable handbrake control mechanism assembly. Utility Model Content

[0004] The purpose of this utility model is to provide a highly stable handbrake control mechanism assembly, which has the advantage of improving the stability of the handbrake control mechanism and maintaining the braking state even in the event of coil spring failure or accidental contact with the linkage. It solves the problem that in the current process of manually pulling the handle to assist in vehicle braking, the rotated handle is fixed by the pawl and ratchet being engaged by the linkage and coil spring inside the handle. However, during long-term use, when the elastic force of the coil spring fails or the linkage is accidentally contacted, the pawl and ratchet are easily separated, thereby releasing the vehicle's braking state and reducing the stability of the automatic braking assistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a highly stable handbrake operating mechanism assembly, comprising a handle, a rotating frame, and a fixed frame. The fixed frame houses the rotating frame via a rotating shaft. A ratchet is fixedly installed inside the fixed frame. A pawl is rotatably installed inside the rotating frame via a first rotating shaft. A handle is fixedly connected to one side of the outer surface of the rotating frame. A connecting rod is slidably installed inside the handle, extending through both ends of the handle. One end of the connecting rod inside the rotating frame is rotatably connected to the pawl via a second rotating shaft. A helical spring is spirally wound around the outer surface of the connecting rod. A groove is provided on the upper surface of the connecting rod away from the rotating frame. A U-shaped plate is provided inside the handle near the groove, extending through the lower surface of the handle. A V-shaped spring plate is fixedly installed on the upper surface of the U-shaped plate.

[0006] Preferably, a button is fixedly connected to the end of the connecting rod.

[0007] Preferably, a connecting plate is fixedly installed on the lower surface of the template, and the connecting plate is located below the handle.

[0008] Preferably, the rotating frame, ratchet, and fixed frame are all provided with rotating circular holes on their outer surfaces, and the rotating shaft passes through the rotating circular holes.

[0009] Preferably, a limit block is fixedly installed on the lower surface of the ratchet.

[0010] Preferably, annular grooves are provided on the outer surface of the rotating shaft near both ends, and retaining springs are provided inside both annular grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention improves the stability of the handbrake operating mechanism by incorporating a fixed frame, a rotating frame, a ratchet, a rotating shaft, a pawl, a first rotating shaft, a second rotating shaft, a helical spring, a connecting rod, a groove, a V-shaped spring plate, and a U-shaped plate. This allows the handbrake to maintain its braking state even in the event of helical spring failure or accidental contact with the connecting rod. The elastic force of the helical spring causes the connecting rod to rotate the pawl, engaging the pawl and ratchet to restrict the rotation of the handle and rotating frame. Before rotating the handle, the connecting rod must be pressed to rotate the pawl and disengage it from the ratchet. Before pressing the connecting rod, the fingers holding the handle must push the U-shaped plate to separate it from the groove, releasing the sliding restriction on the connecting rod. This added handle rotation restriction mechanism ensures that even in the event of accidental contact with the connecting rod or helical spring failure, the ratchet and pawl remain engaged, improving stability.

[0013] 2. This utility model achieves the effect of facilitating the assembly and disassembly of the fixed frame, rotating frame, and ratchet by setting a rotating circular hole, an annular groove, a retaining spring, and a limiting block. The ratchet and rotating frame are placed inside the fixed frame, so that the rotating circular holes on the ratchet, fixed frame, and rotating frame are on the same axis. Then, the rotating shaft is passed through the rotating circular hole, and the retaining spring is inserted into the annular groove to complete the assembly of the fixed frame, rotating frame, and ratchet. The limiting block restricts the rotation of the ratchet. When disassembling, the retaining spring inside the annular groove is removed, and the rotating shaft inside the rotating circular hole is removed to complete the disassembly of the fixed frame, rotating frame, and ratchet. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional sectional view of the present invention;

[0016] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0017] Figure 4 This is a partial three-dimensional structural diagram of the rotating shaft of this utility model.

[0018] Reference numerals: 1. Handle; 2. Rotating frame; 3. Rotating hole; 4. Fixing frame; 5. Rotating shaft; 6. Button; 7. Connecting rod; 8. First rotating shaft; 9. Pawl; 10. Second rotating shaft; 11. Ratchet; 12. Limiting block; 13. Helical spring; 14. V-shaped spring plate; 15. Groove; 16. U-shaped plate; 17. Connecting plate; 18. Annular groove; 19. Snap ring. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example 1

[0020] like Figures 1-3 As shown, the present invention proposes a highly stable handbrake operating mechanism assembly, including a handle 1, a rotating frame 2, and a fixed frame 4. The rotating frame 2 is rotatably mounted inside the fixed frame 4 via a rotating shaft 5. Both the fixed frame 4 and the rotating frame 2 are U-shaped when viewed from the side. A ratchet 11 is fixedly mounted inside the fixed frame 4, and the ratchet 11 is coaxial with the rotating shaft 5. A pawl 9 is rotatably mounted inside the rotating frame 2 via a first rotating shaft 8. The handle 1 is fixedly connected to one side of the outer surface of the rotating frame 2. A connecting rod 7 is slidably mounted inside the handle 1, and the connecting rod 7 passes through both ends 1 of the handle. One end of the connecting rod 7 located inside the rotating frame 2 is rotatably connected to the pawl 9 via a second rotating shaft 10.

[0021] A helical spring 13 is spirally wound on the outer surface of the connecting rod 7. The elastic force of the helical spring 13 acts on the connecting rod 7, causing the connecting rod 7 to drive the pawl 9 to rotate, and causing the pawl 9 and the ratchet 11 to be engaged, thereby fixing the handle 1 and the rotating frame 2. A button 6 is fixedly connected to the end of the connecting rod 7. Pressing the button 6 causes the connecting rod 7 to drive the pawl 9 to rotate. After the pawl 9 and the ratchet 11 are separated, the handle 1 and the rotating frame 2 can rotate. A groove 15 is provided on the side of the upper surface of the connecting rod 7 away from the rotating frame 2. The handle 1 is located near the groove 15 inside. A U-shaped plate 16 is provided at the position, and the U-shaped plate 16 passes through the lower surface of the handle 1. A V-shaped spring plate 14 is fixedly installed on the upper surface of the U-shaped plate 16. The elastic force of the V-shaped spring plate 14 causes the U-shaped plate 16 to be inserted into the groove 15 to limit the sliding of the connecting rod 7. A connecting plate 17 is fixedly installed on the lower surface of the U-shaped plate 16, and the connecting plate 17 is located below the handle 1. When holding the handle 1, the button 6 can be pressed with the thumb, and the connecting plate 17 can be pressed with the fingers to separate the U-shaped plate 16 from the groove 15, thereby releasing the restriction on the connecting rod 7.

[0022] In this embodiment, the elastic force of the helical spring 13 causes the connecting rod 7 to drive the pawl 9 to rotate, and the pawl 9 and ratchet 11 to be engaged, thereby restricting the rotation of the handle 1 and the rotating frame 2. Before rotating the handle 1, the connecting rod 7 needs to be pressed to make the pawl 9 rotate and separate from the ratchet 11. Before pressing the connecting rod 7, the fingers holding the handle 1 need to push the U-shaped plate 16 through the connecting plate 17 to separate the U-shaped plate 16 from the groove 15, thereby releasing the sliding restriction on the connecting rod 7. Thus, during use, a rotation restriction mechanism for the handle 1 is added. Even if the button 6 is accidentally touched or the helical spring 13 fails, the ratchet 9 and pawl 11 can still be engaged and rotate, improving stability and ensuring vehicle braking. Example 2

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, the present invention proposes a highly stable handbrake control mechanism assembly. Compared with Embodiment 1, this embodiment further includes a rotating frame 2, a ratchet 11, and a fixed frame 4, all of which have rotating circular holes 3 on their outer surfaces. The rotating shaft 5 passes through the rotating circular holes 3, and the rotating circular holes 3 extend from the front surface to the rear surface. A limiting block 12 is fixedly installed on the lower surface of the ratchet 11. The lower surface of the limiting block 12 contacts the bottom of the inner wall of the fixed frame 4. Annular grooves 18 are provided on the outer surface of the rotating shaft 5 near both ends, and retaining springs 19 are provided inside both annular grooves 18.

[0024] In this embodiment, the ratchet 11 and the rotating frame 2 are placed inside the fixed frame 4, so that the rotating circular hole 3 on the ratchet 11, the fixed frame 4 and the rotating frame 2 are on the same axis. Then, the rotating shaft 5 is passed through the rotating circular hole 3 and the retaining spring 19 is inserted into the annular groove 18, thus completing the installation between the fixed frame 4, the rotating frame 2 and the ratchet 11. The limiting block 12 restricts the rotation of the ratchet 11. When disassembling, the retaining spring 19 inside the annular groove 18 is removed and the rotating shaft 5 inside the rotating circular hole 3 is removed, thus completing the disassembly between the fixed frame 4, the rotating frame 2 and the ratchet 11.

[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A high-stability hand brake operating mechanism assembly comprising a handle (1), a rotating frame (2) and a fixed frame (4), characterized in that: The fixed frame (4) is internally rotatably connected with a rotating frame (2) through a rotating shaft (5), the fixed frame (4) is internally fixedly connected with a ratchet wheel (11), the rotating frame (2) is internally rotatably connected with a pawl (9) through a first rotating shaft (8), one side of the outer surface of the rotating frame (2) is fixedly connected with a handle (1), the handle (1) is internally slidably connected with a connecting rod (7), and the connecting rod (7) penetrates through both ends of the handle (1), one end of the connecting rod (7) in the rotating frame (2) is rotatably connected with the pawl (9) through a second rotating shaft (10), the outer surface of the connecting rod (7) is spirally wound with a spiral spring (13), the upper surface of the connecting rod (7) is provided with a groove (15) away from the rotating frame (2), the inner surface of the handle (1) is provided with a U-shaped plate (16) near the groove (15), and the U-shaped plate (16) penetrates through the lower surface of the handle (1), and the upper surface of the U-shaped plate (16) is fixedly connected with a V-shaped spring plate (14).

2. A high-stability hand brake operating mechanism assembly according to claim 1, characterized in that: The end of the connecting rod (7) is fixedly connected with a button (6).

3. A high-stability hand brake operating mechanism assembly according to claim 1, characterized in that: The lower surface of the U-shaped plate (16) is fixedly connected with a connecting plate (17), and the connecting plate (17) is located below the handle (1).

4. A high-stability hand brake operating mechanism assembly according to claim 1, characterized in that: The outer surface of the rotating frame (2), the ratchet wheel (11) and the fixed frame (4) are all provided with rotating circular holes (3), and the rotating shaft (5) penetrates through the rotating circular holes (3).

5. A high-stability hand brake operating mechanism assembly according to claim 4, characterized in that: The lower surface of the ratchet wheel (11) is fixedly connected with a limiting block (12).

6. A high-stability hand brake operating mechanism assembly according to claim 4, characterized in that: The outer surface of the rotating shaft (5) is provided with annular clamping grooves (18) near both ends, and the inner surfaces of the two annular clamping grooves (18) are both provided with clamping springs (19).

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