Automobile hand brake control mechanism
By designing a parking handle with a 7.25 leverage ratio and an automobile hand brake control mechanism that increases the contact area between the bracket plate and the mount, the problem of heavy operation and large left and right shaking during use is solved, and easier operation and more stable structure is achieved.
Patent Information
- Application Number
- CN202420201274.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-01-29
Smart Images
Figure CN222572273U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile brake parts, in particular to an automobile hand brake operating mechanism. Background Art
[0002] With the rapid development of the automobile industry, various systems of automobiles are becoming more and more complex, which puts higher requirements on the reliability of vehicles. Parking brake, as an important auxiliary braking method, plays an important role in vehicle safety.
[0003] Currently, there are more and more types of hand brake operating mechanism assembly products, but their disadvantages are also more obvious: 1. The hand brake operating mechanism assembly is heavy to operate when in use; 2. The hand brake operating mechanism assembly has a large amount of left and right shaking. Utility Model Content
[0004] The utility model provides a vehicle hand brake operating mechanism to solve the problems that the hand brake operating mechanism is heavy to operate and the hand brake operating mechanism assembly shakes greatly from side to side during use.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a car hand brake operating mechanism, including a mounting seat fixed on the body floor in the cab, and a parking operating handle rotatably mounted on the mounting seat, a sheath is arranged outside the parking operating handle, the parking operating handle includes a wire guide plate, the wire guide plate is fixedly arranged on the mounting seat, a wire guide rail is arranged in the wire guide plate, a wire is arranged in the wire guide rail, one end of the wire is connected to the parking operating handle, and the other end is connected to the brake shoe of the rear wheel, the parking operating handle includes a push rod, an operating force application point is arranged on the push rod, the distance from the operating force application point to the center point of the wire guide plate is L1, the radius of the wire guide rail is R1, and the lever ratio L1 / R1 of the parking operating handle is 7.25
[0006] Preferably, the pull wire comprises a front pull wire and a rear pull wire, the front pull wire is arranged in a pull wire guide rail, the front pull wire and the rear pull wire are connected via a connecting block, and the rear pull wire is connected to the brake shoe.
[0007] Preferably, a bracket plate is provided on the mounting seat, a parking switch is installed on the mounting seat, and the parking switch is electrically connected to the instrument.
[0008] Preferably, the parking control handle also includes a pressure head and a push rod, the pressure head is located in front of the sleeve, a return spring is sleeved on the push rod between the bracket plate and the pressure head, the bracket plate includes an upper bracket plate and a lower bracket plate, the upper bracket plate and the lower bracket plate are installed on the upper and lower sides of the mounting seat, a pressure plate seat is arranged on the lower bracket plate, a pressure plate is rotatably arranged on the pressure plate seat, a tooth plate is installed on the mounting seat, one end of the push rod is connected to the pressure head, and the other end is connected to the pressure plate, and the pressure plate is meshed with the tooth plate when in use.
[0009] The beneficial effects of adopting the above technical solution are:
[0010] The lever ratio L1 / R1 of the parking control handle is 7.25, which can effectively solve the problem that the hand brake control mechanism assembly is heavy to operate when in use.
[0011] An upper bracket plate and a lower bracket plate are provided to increase the contact area between the bracket plate and the mounting seat. At the same time, the wire guide plate is welded to the mounting seat to increase the number and position of welding points, which not only solves the problem of large left and right shaking when the hand brake operating mechanism is used, but also increases the connection strength between the wire guide plate and the bracket plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a main schematic diagram of the utility model;
[0013] Figure 2 It is a rear view schematic diagram of the utility model;
[0014] Figure 3 This is a state diagram for use of the utility model;
[0015] Figure 4 It is a right side schematic diagram of the utility model;
[0016] Figure 5 for Figure 4 AA section view in.
[0017] The symbols in the figure correspond respectively to: 1-mounting seat, 2-sheath, 3-wire guide plate, 31-wire guide rail, 4-front wire, 5-pressure head, 6-push rod, 7-connecting block, 8-parking switch, 9-bracket plate, 10-pressure plate seat, 11-pressure plate, 91-upper bracket plate, 92-lower bracket plate, 12-tooth plate, 13-return spring, 14-operating force application point. DETAILED DESCRIPTION
[0018] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation. Example
[0019] The utility model discloses a vehicle hand brake operating mechanism, comprising a mounting seat 1 fixed on the vehicle body floor in a cab and a parking operating handle rotatably mounted on the mounting seat, a sheath 2 is arranged outside the parking operating handle, the parking operating handle comprises a wire guide plate 3, a wire, a pressure head 5 and a push rod 6, the wire guide plate 3 is fixedly welded on the mounting seat 1, the pressure head 5 is located in front of the sheath 2, a wire guide rail 31 is arranged in the wire guide plate 3, the wire comprises a front wire 4 and a rear wire, the front wire 4 is arranged in the wire guide rail 31, the front wire 4 and the rear wire are connected through a connecting block 7, the rear wire is connected to a brake shoe, a parking switch 8 is installed on the mounting seat 1, the parking switch 8 is electrically connected to an instrument, the parking switch 8 is used to feed back a parking signal to the instrument, a bracket plate 9 is arranged on the mounting seat 1, the bracket plate 9 comprises an upper bracket plate 91 and a lower bracket plate 92, the upper bracket plate 91 The lower bracket plate 92 is installed on the upper and lower sides of the mounting base 1, a pressure plate seat 10 is arranged on the lower bracket plate 92, a pressure plate 11 is rotatably arranged on the pressure plate seat 10, a tooth plate 11 is arranged on the mounting base 1 between the upper bracket plate 91 and the lower bracket plate 92, one end of the push rod 6 is connected to the pressure head 5, and the other end is connected to the pressure plate 12, a return spring 13 is sleeved on the push rod 6 between the bracket plate 9 and the pressure head 12, the pressure plate 11 is meshed with the tooth plate 13 when in use, an operating force application point 14 is arranged on the push rod 6, the transverse center line of the operating force application point 14 and the transverse center line of the pressure head are located on the same line, the distance from the operating force application point 14 to the center point of the wire guide plate 3 is L1, the radius of the wire guide rail 31 is R1, and the lever ratio L1 / R1 of the parking control handle is 7.25, which can effectively solve the problem of heavy operation of the hand brake operating mechanism assembly when in use.
[0020] The operating force application point 14 is a point arranged according to the human-machine interface. The front pull wire 4 is arranged in the pull wire guide rail 31 so that it rotates according to the designed trajectory. The rear pull wire is connected to the brake shoe of the rear wheel. When parking is required, the hand is held 40 mm behind the pressure head 5 and pulled upward. The pressure plate and the tooth plate are engaged, driving the pull wire to cause friction between the brake shoe and the brake drum to park the vehicle. When the vehicle needs to start, the hand is held 40 mm behind the pressure head 5, and the pressure head 5 is pressed with the thumb. The pressure plate and the tooth plate are disengaged, and the hand brake operating mechanism is slowly lowered. The pull wire drives the brake shoe to separate from the brake drum to release the parking.
[0021] In the automotive industry standard (QC / T 959-2013), levers are divided into four categories according to the shape of the lever and the position of the load application point. In the four types of levers, the distance from the tail end of the lever to the measuring point is 40 mm.
[0022] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are orientations or positional relationships based on actual usage situations and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.
[0023] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above-mentioned concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
Claims
1. A vehicle hand brake operating mechanism, comprising a mounting seat (1) fixed to a vehicle body floor in a cab, and a parking operating handle rotatably mounted on the mounting seat (1), a sheath (2) being arranged outside the parking operating handle, characterized in that: The parking control handle comprises a wire guide plate (3) and a push rod (6), wherein the wire guide plate (3) is fixedly arranged on the mounting seat (1), a wire guide rail (31) is arranged in the wire guide plate (3), a wire is arranged in the wire guide rail (31), one end of the wire is connected to the parking control handle, and the other end is connected to the brake shoe of the rear wheel, an operating force application point is arranged on the push rod (6), a transverse center line of the operating force application point (14) and a transverse center line of the pressure head (5) are located on the same line, a distance from the operating force application point (14) to the center point of the wire guide plate (3) is L1, a radius of the wire guide rail (31) is R1, and a lever ratio L1 / R1 of the parking control handle is 7.
25.
2. The automobile hand brake operating mechanism according to claim 1, characterized in that: The pull wire comprises a front pull wire (4) and a rear pull wire, the front pull wire (4) is arranged in a pull wire guide rail (31), the front pull wire (4) and the rear pull wire are connected via a connecting block (7), and the rear pull wire is connected to the brake shoe.
3. The automobile hand brake operating mechanism according to claim 1, characterized in that: A bracket plate (9) is arranged on the mounting seat (1), a parking switch (8) is installed on the mounting seat (1), and the parking switch (8) is electrically connected to the instrument.
4. The automobile hand brake operating mechanism according to claim 3, characterized in that: The parking control handle also includes a pressure head (5) and a push rod (6), the pressure head (5) is located in front of the sleeve (2), a return spring (13) is sleeved on the push rod (6) between the bracket plate (9) and the pressure head (5), the bracket plate (9) includes an upper bracket plate (91) and a lower bracket plate (92), the upper bracket plate (91) and the lower bracket plate (92) are installed on the upper and lower sides of the mounting seat (1), a pressure plate seat (10) is arranged on the lower bracket plate (92), a pressure plate (11) is rotatably arranged on the pressure plate seat (10), and a tooth plate (12) is installed on the mounting seat (1), one end of the push rod (6) is connected to the pressure head (5), and the other end is connected to the pressure plate (11), and the pressure plate (11) is meshed with the tooth plate (12) when in use.