Brake pedal and vehicle

Abstract

The utility model relates to the field of vehicles, in particular to a brake pedal and a vehicle. The brake pedal comprises a mounting frame; the brake pedal is mounted on the mounting frame and is in hinged matched connection with the mounting frame; the brake valve is mounted on the mounting frame and provided with a valve rod abutting against the brake pedal; the first counter-acting force structure is connected with the brake pedal and the mounting frame and is configured to provide first counter-acting force for the brake pedal when the brake pedal rotates along the mounting frame; the second counter-acting force structure is hinged to the mounting frame and is configured to provide second counter-acting force for the brake pedal after the brake pedal rotates by a preset angle. The treading force of the brake pedal is obviously suddenly changed before and after the preset angle, the demarcation sense is obvious, and control over a brake system is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a brake pedal and a vehicle. Background Art

[0002] As the name suggests, the brake pedal is a pedal that limits power, that is, the foot brake (service brake) pedal, which is used to slow down and stop the car. It is one of the five major controls for driving a car.

[0003] At present, hydraulic brakes are generally used in the braking system of forklift trucks. The rationality of the design of the brake pedal directly affects the braking operability. The existing brake pedal often includes a mounting frame, a brake pedal, a potentiometer, a brake valve and a torsion spring. The brake pedal and the brake valve are arranged on the mounting frame, and the brake pedal has an articulated shaft articulated with the mounting frame. The torsion spring is sleeved on the circumferential outer side of the articulated shaft, and the pedal force of the brake pedal is provided by the torsion spring; the potentiometer is coaxially installed with the articulated shaft of the brake pedal to detect the change angle of the brake pedal. When the brake pedal is stepped on, the valve stem of the brake valve is pushed to move to provide braking pressure for the vehicle. However, the pedal force of this brake pedal is provided by a single torsion spring, which is sleeved on the outer side of the articulated shaft of the brake pedal. The pedal angle generally changes by 16°, which is a small change; accordingly, the change angle of the torsion spring is small, resulting in an unclear change in the pedal force during the pedaling process, no sense of boundary, and it is difficult to find a stable braking angle during the operation process. The vehicle often fails to stop or brakes too quickly, causing impact, and the vehicle driving comfort is poor.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0005] In order to improve or solve the technical problem in the prior art that the pedaling force does not change significantly and there is no sense of boundary during the pedaling of the brake pedal, the utility model provides a brake pedal. The brake pedal comprises: a mounting frame; a brake pedal mounted on the mounting frame and articulated with the mounting frame; a brake valve mounted on the mounting frame and having a valve stem abutting against the brake pedal; a first reaction force structure connecting the brake pedal and the mounting frame and configured to provide a first reaction force to the brake pedal when the brake pedal rotates along the mounting frame; a second reaction force structure, articulated with the mounting frame and configured to provide a second reaction force to the brake pedal after the brake pedal rotates by a predetermined angle.

[0006] In the brake pedal of the utility model, it includes a mounting frame, a brake pedal, a brake valve, a first reaction force structure and a second reaction force structure. Among them, the brake valve and the brake pedal are mounted on the mounting frame, and when the brake pedal is stepped on and rotated, it will press the valve stem of the brake valve, thereby controlling the braking of the vehicle's braking system. The first reaction force structure connects the brake pedal and the mounting frame, and provides a first reaction force opposite to the pedaling force when the brake pedal is stepped on. The second reaction force structure is hinged with the mounting frame, and is configured to provide the brake pedal with a second reaction force after the brake pedal rotates a predetermined angle, so that after the brake pedal rotates a predetermined angle, the first reaction force and the second reaction force act simultaneously, and the pedaling force produces a significant mutation before and after the predetermined angle, with a clear sense of demarcation, which is convenient for the control of the braking system. Even a first-time driver can quickly find the angle of stable braking and the angle of emergency braking, avoiding the situation of failing to brake the vehicle or braking too quickly. Through the above-mentioned settings, the pedaling force of the brake pedal of the utility model produces a significant mutation before and after the predetermined angle, with a clear sense of demarcation, which is convenient for the control of the braking system.

[0007] In the preferred technical solution of the above brake pedal, the first reaction force structure includes a first spring; one end of the first spring is fixed to the mounting frame, and the other end is fixed to the brake pedal.

[0008] In the preferred technical solution of the brake pedal, first hanging rings are arranged at both ends of the first spring; a first stopper rod matching the first hanging ring is arranged on the brake pedal; and a first hook matching the first hanging ring is arranged on the mounting frame. The above arrangement facilitates the disassembly of the first spring, and further facilitates the maintenance and replacement of the first spring.

[0009] In the preferred technical solution of the brake pedal, the second reaction force structure includes a sub-plate hinged to the mounting frame and a second spring connecting the sub-plate and the mounting frame; a strap is installed on the brake pedal, and the strap is configured to abut against the sub-plate after the brake pedal rotates by the predetermined angle. Through the above arrangement, after the brake pedal rotates by the predetermined angle, the strap abuts against the sub-plate, thereby providing a second reaction force during the continued rotation of the brake pedal.

[0010] In the preferred technical solution of the brake pedal, second hanging rings are arranged at both ends of the second spring; a second stopper rod matching the second hanging ring is arranged on the auxiliary plate; and a second hook matching the second hanging ring is arranged on the mounting frame. The above arrangement facilitates the disassembly of the second spring, and further facilitates the maintenance and replacement of the second spring.

[0011] In the preferred technical solution of the above brake pedal, a first adjusting bolt is adjustably arranged on the mounting frame, and one end of the first adjusting bolt abuts against the brake pedal.

[0012] In the preferred technical solution of the brake pedal, a second adjusting bolt is adjustably arranged on the mounting frame, and one end of the second adjusting bolt abuts against the auxiliary plate. Through the above arrangement, the arrangement of the second adjusting bolt can adjust the predetermined angle for generating a sudden change in pedaling force.

[0013] In the preferred technical solution of the brake pedal, an angle magnification structure and a potentiometer connected to the angle magnification structure are arranged on the mounting frame, and the angle magnification structure is configured to magnify the rotation angle of the brake pedal. Through the above-mentioned setting, the setting of the angle magnification structure can magnify the rotation angle of the brake pedal, thereby facilitating the potentiometer to detect the rotation angle of the brake pedal.

[0014] In the preferred technical solution of the above brake pedal, the angle magnification structure includes a shift fork and a fixing member slidably arranged in the shift fork and fixedly connected to the brake pedal; the fixing member is configured to drive the shift fork to rotate when the brake pedal rotates.

[0015] In order to solve the above technical problems, the utility model also includes a vehicle, which includes the brake pedal described in any one of the above schemes. Through the above arrangement, after the brake pedal is rotated by a predetermined angle, the first reaction force and the second reaction force act simultaneously, and the pedaling force produces a significant sudden change before and after the predetermined angle, with a clear sense of demarcation, which facilitates the control of the braking system. Even a first-time driver can quickly find the angle for stable braking and the angle for emergency braking, avoiding the situation of failing to stop the vehicle or braking too quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of an embodiment of the brake pedal of the utility model.

[0018] Figure 2 It is another schematic diagram of an embodiment of the brake pedal of the utility model.

[0019] List of reference numerals: 1. mounting frame; 11. articulated frame; 12. first hook; 13. second hook; 14. first adjusting bolt; 15. second adjusting bolt; 2. brake pedal; 21. first limiting rod; 22. strap; 3. brake valve; 31. valve stem; 4. first reaction force structure; 41. first hanging ring; 5. second reaction force structure; 51. sub-plate; 52. second spring; 53. second hanging ring; 54. second limiting rod; 6. angle enlargement structure; 61. shift fork; 62. fixing member; 7. potentiometer. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0021] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In order to improve or solve the technical problem that the pedaling force does not change obviously and there is no sense of boundary during the pedaling of the brake pedal in the prior art, the utility model provides a brake pedal. The brake pedal comprises: a mounting frame 1; a brake pedal 2, which is mounted on the mounting frame 1 and is hingedly connected with the mounting frame 1; a brake valve 3, which is mounted on the mounting frame 1 and has a valve stem 31 that abuts against the brake pedal 2; a first reaction force structure 4, which connects the brake pedal 2 and the mounting frame 1 and is configured to provide a first reaction force for the brake pedal 2 when the brake pedal 2 rotates along the mounting frame 1; and a second reaction force structure 5, which is hingedly connected with the mounting frame 1 and is configured to provide a second reaction force for the brake pedal 2 after the brake pedal 2 rotates a predetermined angle.

[0024] Figure 1 Schematic diagram of an embodiment of the brake pedal of the utility model. Figure 1 As shown, in one or more embodiments, the brake pedal of the utility model includes a mounting frame 1, a brake pedal 2, a brake valve 3, a first reaction force structure 4, and a second reaction force structure 5.

[0025] Continue to see Figure 1In one or more embodiments, the mounting frame 1 is roughly in the shape of a rectangular plate. An articulated frame 11 is arranged on the mounting frame 1, and the articulated frame 11 includes two side-by-side articulated plates and an articulated shaft arranged between the two articulated plates. Furthermore, a mounting hole is opened near one end of the mounting frame 1. The brake valve 3 is installed in the mounting hole and is fixedly connected to the mounting frame 1 by bolts. The brake valve 3 has a valve stem 31, and the valve stem 31 protrudes from the mounting frame 1. Based on Figure 1 In the orientation shown, the brake valve 3 is located at the rear side of the articulated frame 11, and the valve stem 31 is located at the lower side of the mounting frame 1. In one or more embodiments, a first hook 12 and a second hook 13 are also arranged on the mounting frame 1. The first hook 12 is used to connect the first reaction force structure 4, and the second hook 13 is used to install the second reaction force structure 5. The first hook 12 and the second hook 13 are arranged side by side and are located at the front side of the articulated frame 11. Further, a first adjusting bolt 14 and a second adjusting bolt 15 are arranged on the mounting frame 1, and the first adjusting bolt 14 and the second adjusting bolt 15 are arranged between the hook and the articulated frame 11, and the first adjusting bolt 14 and the second adjusting bolt 15 are arranged side by side. Nuts matching the first adjusting bolt 14 and the second adjusting bolt 15 are arranged on the mounting frame 1, so that the first adjusting bolt 14 and the second adjusting bolt 15 can be moved up and down on the mounting frame 1 for adjustment. The first adjusting bolt 14 abuts against the brake pedal 2 to limit the initial angle of the brake pedal 2 ; the second adjusting bolt 15 abuts against the second reaction force structure 5 to limit the initial angle of the second reaction force structure 5 .

[0026] Figure 2 2 is another schematic diagram of an embodiment of the brake pedal of the utility model. Figure 1 and Figure 2As shown, in one or more embodiments, the brake pedal 2 has a relative abutment end and a pedal end. A roller is provided at the abutment end, and the roller and the abutment end are rotatably connected through a rotating shaft, and the roller abuts against the valve stem 31 of the brake valve 3. Preferably, a support plate is provided on the side of the roller away from the abutment end, and one end of the support plate is hinged to the hinge shaft, and the other end is hinged to the rotating shaft. In one or more embodiments, a hinge hole matching the hinge shaft is provided on the brake pedal 2, and the hinge hole is close to the abutment end, so that when the pedal end is stepped on and pressed down, the entire brake pedal 2 rotates with the hinge shaft as the axis, and the abutment end low-pressure brake valve 3. In one or more embodiments, an angle magnification structure 6 and a potentiometer 7 connected to the angle magnification structure 6 are arranged on the mounting frame 1. The angle magnification structure 6 can amplify the rotation angle of the brake pedal 2. Specifically, a mounting plate is arranged on the mounting frame 1. The angle magnification structure 6 includes a shift fork 61 rotatably arranged on the mounting plate and a fixing member 62 fixed on the brake pedal 2. The shift fork 61 is roughly U-shaped and forms a U-shaped groove. The fixing member 62 is slidably arranged in the U-shaped groove of the shift fork 61. Exemplarily, when the brake pedal 2 rotates 16°, the shift fork rotates 21°, and the potentiometer 7 detects the rotation angle of the shift fork 61, thereby more accurately judging the rotation angle of the brake pedal 2. Furthermore, a first limit rod 21 is installed on the brake pedal 2, and the first limit rod 21 is used to connect the first reaction force structure 4. Preferably, a first limit ring groove is provided on the first limit rod 21.

[0027] Continue to see Figure 1 and Figure 2 In one or more embodiments, the first reaction force structure 4 includes a first spring, one end of which is fixed to the mounting frame 1, and the other end is fixed to the brake pedal 2. Specifically, first hanging rings 41 are provided at both ends of the first spring, one of which matches the first limiting rod 21 and is arranged in the first limiting ring groove; the other first hanging ring 41 is suspended in the first hook 12. When the brake pedal 2 is stepped on and pressed down, the first spring provides the first reaction force for the brake pedal 2.

[0028] Continue to see Figure 1 and Figure 2In one or more embodiments, the second reaction force structure 5 includes a sub-plate 51 hinged to the mounting frame 1 and a second spring 52 connecting the sub-plate 51 and the mounting frame 1. Specifically, a hinge hole matching the hinge axis is opened at one end of the sub-plate 51, and the sub-plate 51 rotates around the hinge axis. A second limiting rod 54 is arranged at one end of the sub-plate 51 away from the hinge axis, and the second limiting rod 54 has the same structure as the first limiting rod 21. Second hanging rings 53 are arranged at both ends of the second spring 52, one of the second hanging rings 53 matches the second limiting rod 54, and the other second hanging ring 53 is suspended in the second hook 13. Further, a strap 22 is installed on the brake pedal 2, and the strap 22 is close to the sub-plate 51. When the brake pedal 2 rotates by a predetermined angle, the strap 22 abuts against the sub-plate 51, and as the brake pedal 2 continues to rotate, the strap 22 pushes the sub-plate 51 to move, and the second spring 52 provides a second reaction force for the brake pedal 2. Exemplarily, before the brake pedal 2 rotates 11°, the first spring provides the first reaction force for the brake pedal 2; after the brake pedal 2 rotates 11°, the first spring provides the first reaction force for the brake pedal 2, and the second spring 52 provides the second reaction force for the brake pedal 2, so that the pedaling force of the brake pedal 2 has a sudden change of about 70N before and after 11°, with a clear sense of demarcation and easy to control. Even a first-time driver can quickly find the angle of stable braking and the angle of emergency braking to avoid the situation of not being able to brake the car or braking too quickly. Further, one end of the second adjusting bolt 15 is against the sub-plate 51. By adjusting the length of the second adjusting bolt 15 extending out of the mounting frame 1, the initial angle of the sub-plate 51 can be adjusted, thereby adjusting the size of the predetermined angle. At the same time as the force suddenly changes, the angle sensor or potentiometer 7 sends a signal to reduce the engine speed, increase the motor displacement, and reduce the closed pump displacement, so as to facilitate stable braking.

[0029] In order to improve or solve the technical problem that the pedaling force does not change obviously and there is no sense of demarcation during the pedaling of the brake pedal in the prior art, the utility model also provides a vehicle, which includes any of the above brake pedals. In one or more embodiments, the vehicle can be a forklift. The forklift has a hydraulic brake system, which includes a brake pedal, a master brake cylinder, a brake oil pipe, a wheel brake, etc.

[0030] So far, the technical scheme of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical schemes after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A brake pedal, characterized in that: include: Mounting frame (1); A brake pedal (2) mounted on the mounting frame (1) and forming an articulated connection with the mounting frame (1); A brake valve (3) mounted on the mounting frame (1) and having a valve stem (31) abutting against the brake pedal (2); a first reaction force structure (4), connecting the brake pedal (2) and the mounting frame (1) and configured to provide a first reaction force for the brake pedal (2) when the brake pedal (2) rotates along the mounting frame (1); The second reaction force structure (5) is hinged to the mounting frame (1) and is configured to provide a second reaction force for the brake pedal (2) after the brake pedal (2) rotates by a predetermined angle.

2. The brake pedal according to claim 1, characterized in that: The first reaction force structure (4) comprises a first spring; one end of the first spring is fixed to the mounting frame (1), and the other end is fixed to the brake pedal (2).

3. The brake pedal according to claim 2, characterized in that: First hanging rings (41) are arranged at both ends of the first spring; a first limiting rod (21) matching the first hanging ring (41) is arranged on the brake pedal (2); and a first hook (12) matching the first hanging ring (41) is arranged on the mounting frame (1).

4. The brake pedal according to claim 1, characterized in that: The second reaction force structure (5) comprises a sub-plate (51) hinged to the mounting frame (1) and a second spring (52) connecting the sub-plate (51) and the mounting frame (1); a strap (22) is installed on the brake pedal (2), and the strap (22) is configured to abut against the sub-plate (51) after the brake pedal (2) rotates by the predetermined angle.

5. The brake pedal according to claim 4, characterized in that: Second hanging rings (53) are arranged at both ends of the second spring (52); a second limiting rod (54) matching the second hanging ring (53) is arranged on the auxiliary plate (51); and a second hook (13) matching the second hanging ring (53) is arranged on the mounting frame (1).

6. The brake pedal according to claim 4, characterized in that: A first adjusting bolt (14) is adjustably arranged on the mounting frame (1), and one end of the first adjusting bolt (14) abuts against the brake pedal (2).

7. The brake pedal according to claim 6, characterized in that: A second adjusting bolt (15) is adjustably arranged on the mounting frame (1), and one end of the second adjusting bolt (15) abuts against the auxiliary plate (51).

8. The brake pedal according to claim 1, characterized in that: An angle magnification structure (6) and a potentiometer (7) connected to the angle magnification structure (6) are arranged on the mounting frame (1); the angle magnification structure (6) is configured to magnify the rotation angle of the brake pedal (2).

9. The brake pedal according to claim 8, characterized in that: The angle magnification structure (6) comprises a shift fork (61) and a fixing member (62) which is slidably arranged in the shift fork (61) and is fixedly connected to the brake pedal (2); the fixing member (62) is configured to drive the shift fork (61) to rotate when the brake pedal (2) rotates.

10. A vehicle, characterized in that: include: A brake pedal as claimed in any one of claims 1 to 9.

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