A brake pedal assembly for a medium-sized commercial vehicle

Abstract

The utility model relates to the field of brake pedals, and discloses a brake pedal assembly for a medium-sized commercial vehicle, comprising a pedal bracket (1), a mounting ear 1 (2) and a mounting ear 2 (3) being arranged on the back side of the pedal bracket (1), the mounting ear 1 (2) being located on the inner side, and the mounting ear 2 (3) being located on the outer side, and also comprising a pedal arm (4) and a pin shaft (6), the pedal arm (4) comprising an arm body (8) and a head (7) at the end, the pin shaft (6) passing through the head (7) and having its two ends respectively mounted on the mounting ear 1 (2) and the mounting ear 2 (3), and the head (7) being rotatable around the pin shaft (6). The pedal assembly has the advantages of simple assembly, low cost, and long service life.

Description

Technical Field

[0001] The utility model relates to the field of pedals, in particular to a brake pedal assembly for a medium-sized commercial vehicle. Background Art

[0002] The brake pedal assembly of medium-sized commercial vehicles often adopts an integrated cast aluminum bracket structure. For example, in a commercial vehicle brake pedal assembly in Chinese patent CN218316655U, the cast aluminum bracket is made of aluminum alloy, which has high material cost and affects the cost of the pedal assembly. It is difficult to avoid the formation of pores in the cast aluminum bracket when die-casting the blank, and stress concentration is easily generated at the transition of the bracket, which eventually causes the bracket to break and affects the performance of the pedal assembly. Utility Model Content

[0003] The utility model aims at the shortcomings of the prior art and provides a brake pedal assembly for a medium-sized commercial vehicle.

[0004] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0005] A brake pedal assembly for a medium-sized commercial vehicle includes a pedal bracket, a mounting ear 1 and a mounting ear 2 are arranged on the back side of the pedal bracket, the mounting ear 1 is located on the inner side, and the mounting ear 2 is located on the outer side. The pedal bracket also includes a pedal arm and a pin shaft. The pedal arm includes an arm body and a head at the end, the pin shaft passes through the head and its two ends are respectively mounted on the mounting ear 1 and the mounting ear 2, and the head can rotate around the pin shaft.

[0006] Preferably, the head includes connecting plate 1, connecting plate 2 and connecting plate 3 connecting connecting plate 1 and connecting plate 2, the pin shaft passes through connecting plate 1 and connecting plate 2, and also includes a positioning member, which is installed on the pin shaft to limit the axial movement of connecting plate 1 and connecting plate 2 on the pin shaft.

[0007] Preferably, it also includes a limiting portion fixedly connected to the pedal bracket, and the limiting portion is located above the connecting plate three and is used to limit the initial position of the connecting plate.

[0008] Preferably, the limiting portion and the first mounting ear and / or the second mounting ear are integrally formed.

[0009] Preferably, it also includes a tension spring, one end of which is connected to the pedal bracket and the other end is connected to the pedal arm. When the pedal arm is stepped down, the tension spring is deformed to accumulate potential energy. After the external force is removed, the tension spring releases the potential energy to drive the pedal arm back to its position.

[0010] Preferably, one end of the tension spring is connected to the second fixed mounting ear, and the other end is connected to the outside of the head.

[0011] Preferably, the first connecting plate is located between the first fixed mounting ear and the second fixed mounting ear, and the second connecting plate is located outside the second fixed mounting ear.

[0012] Preferably, the pedal arm is a stamped integrally formed structure.

[0013] Preferably, a first bushing is provided in the mounting holes of the connecting plate 1 and the connecting plate 2 for mounting with the pin shaft, and a second bushing is provided in the shaft holes of the mounting ear 1 and the mounting ear 2 for mounting with the pin shaft.

[0014] The utility model designs a brake pedal assembly for a medium-sized commercial vehicle, which has a simple structure, high strength, and avoids welding deformation; the bracket has high strength and is not easily deformed after being stressed, ensuring the stability of the brake pedal assembly. The utility model adopts a new U-shaped pedal arm structure, cancels the brake shaft tube, and satisfies both the rotation of the brake pedal arm and the pedal strength; the utility model also adopts a tension spring return method to ensure the simple structure of the brake pedal assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a structural diagram of the pedal assembly.

[0016] Figure 2 Schematic diagram of the structure of the pedal arm.

[0017] Figure 3 It is a schematic diagram of the structure of the pedal bracket.

[0018] The technical names of the accompanying drawings are: 1-pedal bracket, 2-mounting ear one, 3-mounting ear two, 4-pedal arm, 6-pin shaft, 7-head, 8-arm body, 7-connecting plate one, 8-connecting plate two, 9-connecting plate three, 12-limiting part, 13-tension spring. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] Example 1

[0021] A medium-sized commercial vehicle brake pedal assembly includes a pedal bracket 1, a mounting ear 1 2 and a mounting ear 2 3 are arranged on the back side of the pedal bracket 1, the mounting ear 1 2 is located on the inner side, and the mounting ear 2 3 is located on the outer side, and also includes a pedal arm 4 and a pin 6, the pedal arm 4 includes an arm body 8 and a head 7 at the end, the pin 6 passes through the head 7 and its two ends are respectively mounted on the mounting ear 1 2 and the mounting ear 2 3, and the head 7 can rotate around the pin 6. The mounting ear 1 2 and the mounting ear 2 3 are arranged in parallel, and the mounting ear 1 2 and the mounting ear 2 3 are fixed to the pedal bracket 1 by welding or by bolt connection.

[0022] In this embodiment, the head 7 includes a connecting plate 1 71, a connecting plate 2 72, and a connecting plate 3 73 connecting the connecting plate 1 71 and the connecting plate 2 72. The pin 6 passes through the connecting plate 1 71 and the connecting plate 2 72, and also includes a positioning member, which is installed on the pin 6 to limit the axial movement of the connecting plate 1 71 and the connecting plate 2 72 on the pin 6. The pedal arm 4 in this scheme is formed by stamping, and the connecting plate 1 71, the connecting plate 2 72 and the connecting plate 3 73 are generally U-shaped structures. Among them, the connecting plate 1 71 and the connecting plate 2 72 are correspondingly connected to the mounting ear 1 2 and the mounting ear 2 3 and are parallel to each other. The connecting plate 1 71, the connecting plate 2 72 and the mounting ear 1 2 and the mounting ear 2 3 are all provided with holes for plugging the pin 6.

[0023] The described also includes a limiting part fixedly connected to the pedal bracket 1, and the limiting part is located above the connecting plate 3 73 to limit the initial position of the connecting plate. The limiting part in this solution is a sheet-like structure extending from the upper area of ​​the front end of the mounting ear, which serves to limit the upward travel of the pedal arm 4.

[0024] Specifically, the limiting portion and the mounting ear 1 2 or / and the mounting ear 2 3 are integrally formed. In this embodiment, the limiting portion and the mounting ear 1 2 are integrally formed.

[0025] This scheme also includes a tension spring 13, one end of which is connected to the pedal bracket 1, and the other end is connected to the pedal arm 4. When the pedal arm 4 is stepped on, the tension spring 13 is deformed to accumulate potential energy. After the external force is removed, the tension spring 13 releases the potential energy and drives the pedal arm 4 back to its original position. The second mounting ear 3 is bent to form a hook hole 1, and the upper side of the head 7 is provided with a hook hole 2; the hook hole 1 and the hook hole 2 are located on the same side, one end of the tension spring 13 is connected to the fixed mounting ear 2 3, and the other end is connected to the outside of the head 7. In the initial state, the tension spring 13 applies an upward force to the head 7, wherein the head 7 can rotate around the pin 6.

[0026] In this embodiment, the first connecting plate 71 is located between the first fixing ear 2 and the second fixing ear 3, and the second connecting plate 72 is located outside the second fixing ear 3. The pedal arm 4 is a stamping integrally formed structure.

[0027] In order to reduce wear and noise, the connecting plate 1 71 and the connecting plate 2 72 are provided with a first bushing in the mounting holes for mounting with the pin shaft 6 , and the mounting ear 1 2 and the mounting ear 2 3 are provided with a second bushing in the shaft hole for mounting with the pin shaft 6 .

[0028] Example 2

[0029] On the basis of Example 1, the first bushing is a plastic bushing, and the second bushing is a metal bushing.

[0030] Example 3

[0031] A vehicle is equipped with the above brake pedal assembly.

Claims

1. A brake pedal assembly for a medium-sized commercial vehicle, characterized in that: The pedal bracket (1) comprises a pedal support (1), a mounting ear (2) and a mounting ear (3) being arranged on the back side of the pedal bracket (1), the mounting ear (2) being located on the inner side, and the mounting ear (3) being located on the outer side, and the pedal bracket (1) further comprises a pedal arm (4) and a pin shaft (6), the pedal arm (4) comprising an arm body (8) and a head (7) at the end, the pin shaft (6) passing through the head (7) and having two ends thereof respectively mounted on the mounting ear (2) and the mounting ear (3), and the head (7) can rotate around the pin shaft (6).

2. A medium-sized commercial vehicle brake pedal assembly according to claim 1, characterized in that: The head (7) comprises a connecting plate 1 (71), a connecting plate 2 (72) and a connecting plate 3 (73) connecting the connecting plate 1 (71) and the connecting plate 2 (72); the pin shaft (6) passes through the connecting plate 1 (71) and the connecting plate 2 (72); and further comprises a positioning member, which is mounted on the pin shaft (6) and is used to limit the axial movement of the connecting plate 1 (71) and the connecting plate 2 (72) on the pin shaft (6).

3. A brake pedal assembly for a medium-sized commercial vehicle according to claim 2, characterized in that: It also includes a limiting portion fixedly connected to the pedal bracket (1), the limiting portion being located above the third connecting plate (73) and used to limit the initial position of the connecting plate.

4. A brake pedal assembly for a medium-sized commercial vehicle according to claim 3, characterized in that: The limiting portion and the first mounting ear (2) or / and the second mounting ear (3) are integrally formed.

5. The brake pedal assembly for a medium-sized commercial vehicle according to claim 1, characterized in that: The pedal also includes a tension spring (13), one end of which is connected to the pedal bracket (1), and the other end of which is connected to the pedal arm (4). When the pedal arm (4) is stepped on, the tension spring (13) is deformed to accumulate potential energy. When the external force is removed, the tension spring (13) releases the potential energy to drive the pedal arm (4) back to its original position.

6. A brake pedal assembly for a medium-sized commercial vehicle according to claim 1, characterized in that: One end of the tension spring (13) is connected to the second fixed mounting ear (3), and the other end is connected to the outer side of the head (7).

7. A brake pedal assembly for a medium-sized commercial vehicle according to claim 2, characterized in that: The first connecting plate (71) is located between the first fixed mounting ear (2) and the second fixed mounting ear (3), and the second connecting plate (72) is located outside the second fixed mounting ear (3).

8. A brake pedal assembly for a medium-sized commercial vehicle according to claim 2, characterized in that: The pedal arm (4) is a stamping integrally formed structure.

9. A brake pedal assembly for a medium-sized commercial vehicle according to claim 2, characterized in that: The first bushing is arranged in the mounting holes of the connecting plate 1 (71) and the connecting plate 2 (72) for mounting with the pin shaft (6), and the second bushing is arranged in the shaft holes of the mounting ear 1 (2) and the mounting ear 2 (3) for mounting with the pin shaft (6).

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