Brake pedal assembly with laterally-arranged vacuum booster pump

Abstract

The utility model discloses a brake pedal assembly with a side vacuum booster pump, which is characterized in that a pedal component is rotatably connected to a support so as to rotate relative to the support on a first plane parallel to the support, the vacuum booster pump is vertically connected to the side surface of the support, and when the pedal component rotates relative to the support on the first plane, the vacuum booster pump is driven to rotate relative to the support. And the first push rod is driven to move along the vertical direction of the first plane, and is axially inserted into the vacuum booster pump to eject a vacuum valve of the vacuum booster pump open, the vacuum booster pump is triggered to work, and vacuum booster braking is realized, so that the vacuum booster pump is laterally arranged, the spare space on the side surface of an automobile cab is utilized, and the service life of the automobile cab is prolonged. The layout below the instrument desk in the cab area is optimized, so that the cab is more reasonable in layout, more convenient to assemble and maintain and suitable for the miniature flat head vehicle, sufficient installation space is provided for the vacuum booster pump, the size of the vacuum booster pump does not need to be reduced, braking force of the vehicle is guaranteed, and safety and reliability are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology and relates to a brake pedal assembly, specifically a brake pedal assembly with a vacuum booster pump mounted on the side. Background Technology

[0002] With the development of the automotive industry and the popularization of private cars, people have higher and higher requirements for the performance of cars. Among them, the car braking system generally consists of a vacuum booster pump and a control powertrain. The car's brake pedal is connected to the vacuum booster pump through a push rod. During the car braking process, simply pressing the car's brake pedal lightly will drive the push rod to trigger the vacuum booster to work. Through the cooperation of the vacuum booster pump and the control powertrain, the car braking is achieved.

[0003] Currently, most brake pedals on the market use a front-mounted vacuum booster pump, as disclosed in Chinese patent CN202481069U. This design provides mounting space for the vacuum booster pump in the driver's cab, dashboard, or under the hood of small passenger cars. For cab-over trucks or buses, the larger dashboard provides sufficient space for a front-mounted vacuum booster pump. However, for micro-cab vehicles, the smaller dashboard and limited front space mean insufficient mounting space for the vacuum booster pump, hindering the installation of the powertrain. A compromise must be made to reduce the size of the vacuum booster pump, but this reduction in size also reduces braking performance and lowers vehicle safety. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a brake pedal assembly with a side-mounted vacuum booster pump, which optimizes the layout under the dashboard in the driver's cab area, providing ample installation space for the vacuum booster pump, thus eliminating the need to reduce the size of the vacuum booster pump and ensuring the braking force of the vehicle.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A brake pedal assembly with a side-mounted vacuum booster pump includes: a pedal assembly, a vacuum booster pump, a bracket, a first push rod, and a transmission assembly. The pedal assembly is rotatably connected to the bracket to rotate relative to the bracket on a first plane parallel to the bracket. The vacuum booster pump is vertically connected to the side of the bracket. The first push rod is coaxially arranged with the vacuum booster pump. One end of the first push rod is driveably connected to the vacuum booster pump, and the other end of the first push rod is drively connected to the pedal assembly through the transmission assembly, so that when the pedal assembly rotates relative to the bracket on the first plane, it drives the first push rod to move in the vertical direction of the first plane, triggering the vacuum booster pump to work.

[0007] Furthermore, the pedal assembly includes: a pedal, a pedal arm, and a pin. The middle part of the pedal arm is rotatably connected to the bracket via the pin. The pedal is connected to one end of the pedal arm, and the other end of the pedal arm is hinged to the transmission assembly.

[0008] Furthermore, the pedal arm has an arc-shaped section in the middle, which bends around the central axis of the first push rod.

[0009] Furthermore, the transmission assembly includes: a second push rod, a crankshaft, a U-shaped frame, a first rotating plate, and a second rotating plate. The second push rod is arranged perpendicular to the crankshaft, and both the second push rod and the crankshaft are arranged perpendicular to the first push rod. The crankshaft is rotatably connected to the U-shaped frame, which is fixedly mounted on a bracket. The first rotating plate and the second rotating plate are both fixedly connected to the side wall of the crankshaft and can rotate synchronously with the crankshaft. The first rotating plate is hinged to one end of the second push rod, and the other end of the second push rod is hinged to the pedal arm. The second rotating plate is hinged to the first push rod.

[0010] Furthermore, a Hall sensor is provided at one end of the crankshaft. The housing of the Hall sensor is fixedly connected to the U-shaped frame, and the inner shaft of the Hall sensor is fixedly connected to the crankshaft.

[0011] Furthermore, the first rotating plate and the second rotating plate are arranged in parallel, and both the first rotating plate and the second rotating plate are arranged perpendicular to the pedal arm.

[0012] Furthermore, one end of the second push rod is connected to a first clamping plate, which clamps both sides of the pedal arm and is hinged to the pedal arm via a first pin; the other end of the second push rod is connected to a second clamping plate, which clamps both sides of the first rotating plate and is hinged to the first rotating plate via a second pin; the end of the first push rod away from the vacuum booster pump is connected to a third clamping plate, which clamps both sides of the second rotating plate and is hinged to the second rotating plate via a third pin.

[0013] Furthermore, a limiting component is provided on the side of the pedal arm near the pedal, and the limiting component is connected between the pedal arm and the bracket to limit the rotation angle of the pedal arm relative to the bracket.

[0014] Furthermore, the limiting assembly includes: a first support plate, a guide shaft, a second support plate, a first limiting bolt, and a second limiting bolt. One end of the first support plate is fixedly connected to the pedal arm, and the other end of the first support plate is fixedly connected to the guide shaft. The first limiting bolt and the second limiting bolt are both connected to the guide shaft. One end of the second support plate is fixedly connected to the bracket, and the other end of the second support plate is slidably connected to the guide shaft between the first limiting bolt and the second limiting bolt.

[0015] The beneficial effects of this utility model are as follows: The brake pedal assembly provided in this application has a pedal assembly rotatably connected to a bracket, allowing it to rotate relative to the bracket on a first plane parallel to the bracket. A vacuum booster pump is vertically connected to the side of the bracket. When the pedal assembly rotates relative to the bracket on the first plane, it drives the first push rod to move in the vertical direction of the first plane, axially inserting it into the vacuum booster pump and opening the vacuum valve of the vacuum booster pump, triggering the vacuum booster pump to work and realizing vacuum-assisted braking. By adopting a side-mounted installation method for the vacuum booster pump, the spare space on the side of the car cab is utilized, optimizing the layout under the dashboard in the cab area, making the cab layout more reasonable, and making assembly and maintenance more convenient. It is suitable for micro flat-head vehicles, providing sufficient installation space for the vacuum booster pump without reducing its size, ensuring the braking force of the car, and ensuring safety and reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the installation of the pedal assembly of this utility model.

[0018] Figure 3 This is a schematic diagram of the installation of the transmission component of this utility model.

[0019] Figure 4 This is a schematic diagram of the linkage of this utility model.

[0020] Figure 5 for Figure 1 A magnified view of a portion of point A in the middle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-2As shown, this utility model provides a brake pedal assembly with a side-mounted vacuum booster pump, including: a pedal assembly 1, a vacuum booster pump 2, a bracket 3, a first push rod 4, and a transmission assembly 5. The pedal assembly 1 is rotatably connected to the bracket 3 to rotate relative to the bracket 3 on a first plane parallel to the bracket 3. The vacuum booster pump 2 is vertically connected to the side of the bracket 3. The first push rod 4 is coaxially arranged with the vacuum booster pump 2. One end of the first push rod 4 is drive-connected to the vacuum booster pump 2, and the other end of the first push rod 4 is drive-connected to the pedal assembly 1 through the transmission assembly 5, so that when the pedal assembly 1 rotates relative to the bracket 3 on the first plane... When the frame 3 rotates, it drives the first push rod 4 to move vertically along the first plane, axially inserting it into the vacuum booster pump 2 and opening the vacuum valve of the vacuum booster pump 2, triggering the vacuum booster pump 2 to work and realize vacuum-assisted braking. By adopting the side-mounted installation method of the vacuum booster pump, the spare space on the side of the car cab is utilized, the layout under the dashboard in the cab area is optimized, the cab layout is more reasonable, and assembly and maintenance are more convenient. It is suitable for micro flat-head vehicles, providing sufficient installation space for the vacuum booster pump, so that the size of the vacuum booster pump does not need to be reduced, ensuring the braking force of the car and making it safe and reliable.

[0023] like Figure 3 As shown, the pedal assembly 1 includes: a pedal 11, a pedal arm 12, and a pin 13. The middle part of the pedal arm 12 is rotatably connected to the bracket 3 via the pin 13. The pedal 11 is connected to one end of the pedal arm 12, and the other end of the pedal arm 12 is hinged to the transmission assembly 5. The middle part of the pedal arm 12 has an arc-shaped portion, which is bent around the central axis of the first push rod 4, so that the entire transmission assembly 5 can be scientifically and rationally arranged around the first push rod 4, reducing the volume of the brake pedal assembly.

[0024] The transmission assembly 5 includes: a second push rod 51, a crankshaft 52, a U-shaped frame 53, a first rotating plate 54, and a second rotating plate 55. The second push rod 51 is arranged perpendicular to the crankshaft 52, and both the second push rod 51 and the crankshaft 52 are arranged perpendicular to the first push rod 54. The crankshaft 52 is rotatably connected to the U-shaped frame 53, which is fixedly mounted on the bracket 3. The first rotating plate 54 and the second rotating plate 55 are both fixedly connected to the side wall of the crankshaft 52 and can rotate synchronously with the crankshaft 52. The first rotating plate 54 is hinged to one end of the second push rod 51, and the other end of the second push rod 51 is hinged to the pedal arm 12. The second rotating plate 55 is hinged to the first push rod 4. The first rotating plate 54 and the second rotating plate 55 are arranged parallel to each other, and both are perpendicular to the pedal arm 12.

[0025] like Figure 4As shown, when the user presses down on pedal 11, with pin 13 as the center, the pedal 11 end of pedal arm 12 rotates relative to bracket 3 in the first plane along arrow A. The other end of pedal arm 12 drives the second push rod 51 to move linearly along arrow B. The second push rod 51 pushes the first rotating plate 54 to rotate around the central axis of crankshaft 52 along arrow B. Crankshaft 52 rotates synchronously with the first rotating plate 54. The second rotating plate 55 rotates synchronously with the crankshaft 52. The second rotating plate 55 pushes the second push rod 51 to move linearly along arrow C. The second push rod 51 inserts into vacuum booster pump 2 along arrow C, opening the vacuum valve of vacuum booster pump 2 and triggering vacuum booster pump 2 to work, thus realizing vacuum-assisted braking.

[0026] A Hall sensor 56 is provided at one end of the crankshaft 52. The housing of the Hall sensor 56 is fixedly connected to the U-shaped frame 53, and the inner shaft of the Hall sensor 56 is fixedly connected to the crankshaft 52. When the crankshaft 52 rotates synchronously with the first rotating plate 54, the Hall sensor 56 detects the rotation angle (i.e., brake opening) of the crankshaft 52 in real time and converts it into a voltage analog quantity, which is then sent to the vehicle VCU. By adding a Hall sensor 56 to the crankshaft 52, the Hall sensor 56 converts the brake opening into a voltage signal and transmits it to the vehicle VCU, thus realizing human-machine interaction.

[0027] One end of the second push rod 51 is connected to a first U-shaped clamp 61, which clamps both sides of the pedal arm 12 and is hinged to the pedal arm 12 via a first pin 62. The other end of the second push rod 51 is connected to a second U-shaped clamp 63, which clamps both sides of the first rotating plate 54 and is hinged to the first rotating plate 54 via a second pin 64. The end of the first push rod 4 away from the vacuum booster pump 2 is connected to a third U-shaped clamp 65, which clamps both sides of the second rotating plate 55 and is hinged to the second rotating plate 55 via a third pin 66.

[0028] A limiting component 7 is provided on the side of the pedal arm 12 near the pedal 11, such as... Figure 5As shown, the limiting assembly 7 is connected between the pedal arm 12 and the bracket 3 to limit the rotation angle of the pedal arm 12 relative to the bracket 3. The limiting assembly 7 includes: a first support plate 71, a guide shaft 72, a second support plate 73, a first limiting bolt 74, and a second limiting bolt 75. One end of the first support plate 71 is fixedly connected to the pedal arm 12, and the other end of the first support plate 71 is fixedly connected to the guide shaft 72. The first limiting bolt 74 and the second limiting bolt 75 are both connected to the guide shaft 72. One end of the second support plate 73 is fixedly connected to the bracket 3, and the other end of the second support plate 73 is slidably connected to the guide shaft 72 between the first limiting bolt 74 and the second limiting bolt 75, so that the second support plate 73 can slide axially between the first limiting bolt 74 and the second limiting bolt 75 along the guide shaft 72, thereby limiting the rotation angle of the pedal arm 12 relative to the bracket 3.

[0029] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A brake pedal assembly with a side-mounted vacuum booster pump, characterized in that, include: The pedal assembly (1), vacuum booster pump (2), bracket (3), first push rod (4), and transmission assembly (5) are rotatably connected to the bracket (3) so as to rotate relative to the bracket (3) on a first plane parallel to the bracket (3). The vacuum booster pump (2) is vertically connected to the side of the bracket (3). The first push rod (4) is coaxially arranged with the vacuum booster pump (2). One end of the first push rod (4) is drivenly connected to the vacuum booster pump (2), and the other end of the first push rod (4) is drivenly connected to the pedal assembly (1) through the transmission assembly (5) so that when the pedal assembly (1) rotates relative to the bracket (3) on the first plane, it drives the first push rod (4) to move in the vertical direction of the first plane, triggering the vacuum booster pump (2) to work.

2. The brake pedal assembly according to claim 1, characterized in that, The pedal assembly (1) includes: pedal (11), pedal arm (12), and pin (13). The middle part of the pedal arm (12) is rotatably connected to the bracket (3) through the pin (13). The pedal (11) is connected to one end of the pedal arm (12), and the other end of the pedal arm (12) is hinged to the transmission assembly (5).

3. The brake pedal assembly according to claim 2, characterized in that, The pedal arm (12) has an arc-shaped part in the middle, which is bent around the central axis of the first push rod (4).

4. The brake pedal assembly according to claim 2, characterized in that, The transmission assembly (5) includes: a second push rod (51), a crankshaft (52), a U-shaped frame (53), a first rotating plate (54), and a second rotating plate (55). The second push rod (51) is arranged perpendicular to the crankshaft (52), and both the second push rod (51) and the crankshaft (52) are arranged perpendicular to the first push rod (4). The crankshaft (52) is rotatably connected to the U-shaped frame (53), which is fixedly installed on the bracket (3). The first rotating plate (54) and the second rotating plate (55) are both fixedly connected to the side wall of the crankshaft (52) and can rotate synchronously with the crankshaft (52). The first rotating plate (54) is hinged to one end of the second push rod (51), and the other end of the second push rod (51) is hinged to the pedal arm (12). The second rotating plate (55) is hinged to the first push rod (4).

5. The brake pedal assembly according to claim 4, characterized in that, A Hall sensor (56) is provided at one end of the crankshaft (52). The outer shell of the Hall sensor (56) is fixedly connected to the U-shaped frame (53), and the inner shaft of the Hall sensor (56) is fixedly connected to the crankshaft (52).

6. The brake pedal assembly according to claim 4, characterized in that, The first rotating plate (54) and the second rotating plate (55) are arranged in parallel, and both the first rotating plate (54) and the second rotating plate (55) are arranged perpendicular to the pedal arm (12).

7. The brake pedal assembly according to claim 4, characterized in that, One end of the second push rod (51) is connected to the first clamping plate (61), which clamps the pedal arm (12) on both sides. The first clamping plate (61) is hinged to the pedal arm (12) through the first pin (62). The other end of the second push rod (51) is connected to the second clamping plate (63), which clamps the first rotating plate (54) on both sides. The second clamping plate (63) is hinged to the first rotating plate (54) through the second pin (64). The end of the first push rod (4) away from the vacuum booster pump (2) is connected to the third clamping plate (65), which clamps the second rotating plate (55) on both sides. The third clamping plate (65) is hinged to the second rotating plate (55) through the third pin (66).

8. The brake pedal assembly according to claim 2, characterized in that, A limiting component (7) is provided on the side of the pedal arm (12) near the pedal (11). The limiting component (7) is connected between the pedal arm (12) and the bracket (3) to limit the rotation angle of the pedal arm (12) relative to the bracket (3).

9. The brake pedal assembly according to claim 8, characterized in that, The limiting assembly (7) includes: a first support plate (71), a guide shaft (72), a second support plate (73), a first limiting bolt (74), and a second limiting bolt (75). One end of the first support plate (71) is fixedly connected to the pedal arm (12), and the other end of the first support plate (71) is fixedly connected to the guide shaft (72). The first limiting bolt (74) and the second limiting bolt (75) are both connected to the guide shaft (72). One end of the second support plate (73) is fixedly connected to the bracket (3), and the other end of the second support plate (73) is slidably connected to the guide shaft (72) between the first limiting bolt (74) and the second limiting bolt (75).

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