A brake pedal assembly based on a 6-meter full-load low-entry city bus

Abstract

The invention discloses a brake pedal assembly based on a 6-meter full-load low-entry city bus, including a fixed bracket assembly, a brake component, a vacuum booster assembly and an angle sensor, wherein the head end of the brake component is rotatably connected to the fixed bracket assembly, the tail end of the fixed bracket assembly is fixedly connected to the vacuum booster assembly, and the tail end of the brake component is rotatably connected to the fixed bracket assembly and the vacuum booster assembly, and the angle sensor is installed at the head end of the fixed bracket assembly and connected to the brake component. The invention has a compact structure and reasonable layout, which greatly improves the layout space in the instrument panel of the driving area. The two ends of the brake component are combined in the form of bearings, which has low friction and convenient rotation during use, fundamentally ensuring the reliability of the assembly structure and ensuring its service life. In addition, each frame structure is made of small-section plates that are bent and assembled and welded, which effectively reduces the overall cost of the vehicle.

Description

Technical Field

[0001] The invention belongs to the technical field of bus accessories, and specifically relates to a brake pedal assembly based on a 6-meter fully load-bearing low-entry city bus. Background Art

[0002] In recent years, pure electric city buses with full-load body structures have appeared more and more frequently in various cities across the country, and the good performance of the full-load body structure has also been widely recognized; the full-load structure makes the bus driving more agile, stable, comfortable and safe, coupled with its humanized configuration, low emissions, environmental protection, large passenger space and other advantages, reflecting the concept of "technological leadership, people-oriented" advocated by modern society, and also creating a unique product advantage for the full-load bus.

[0003] Taking into account the characteristics of the overall structure of the fully monocoque body, the primary concern of industry workers at present is to reasonably adjust and optimize its local design structure while ensuring the reliability of the overall structure of the fully monocoque body to maximize the advantages.

[0004] At present, the brake pedal assembly of a fully loaded low-entry city bus is installed through a large number of fixed sheet metal parts, which not only occupies a relatively large structural space, but also makes it difficult to arrange the space in the instrument panel of the driving area of ​​a 6-meter vehicle, and greatly increases the overall cost of the vehicle. In addition, the two ends of the pedal shaft assembly in the existing structure are in direct contact with the bracket, and after the pedal is stepped on for a long time, problems such as abnormal noise, looseness, and jamming will occur. Summary of the invention

[0005] The purpose of the invention is to provide a brake pedal assembly based on a 6-meter full-load low-entry city bus, simplifying its structure so as to meet the harsh conditions of long-term overload operation of city buses and reduce the production and manufacturing costs of the entire vehicle.

[0006] The technical solution adopted by the invention is a brake pedal assembly based on a 6-meter fully-loaded low-entry city bus, including a fixed bracket assembly, a brake component, a vacuum booster assembly and an angle sensor. The head end of the brake component is rotatably connected to the fixed bracket assembly, the tail end of the fixed bracket assembly is fixedly connected to the vacuum booster assembly, and the tail end of the brake component is rotatably connected to the fixed bracket assembly and the vacuum booster assembly. The angle sensor is installed at the head end of the fixed bracket assembly and connected to the brake component.

[0007] Preferably, the fixed bracket assembly includes a pedal fixed bending part, a vacuum booster mounting frame, a left fixed bracket and a right fixed bracket. The pedal fixed bending part is an L-shaped plate with a predetermined length. The tail end of the pedal fixed bending part is bent outward and connected to the vacuum booster mounting frame. A mounting hole is provided in the middle of the vacuum booster mounting frame, and fixing holes are provided around the mounting hole. The left fixed bracket is arranged at the lower part of the tail end of the vacuum booster mounting frame and is connected to the tail end of the brake component. The right fixed bracket is arranged below the head end of the pedal fixed bending part and is connected to the head end of the brake component, and a mounting hole and a through hole are provided on the right fixed bracket.

[0008] Preferably, a plurality of small triangular reinforcing ribs are provided at intervals along the length direction on the pedal fixing bending part, a reinforcing plate is vertically provided at the head end of the vacuum booster mounting frame near the mounting hole, and a large reinforcing rib is horizontally provided at the connection between the vacuum booster mounting frame and the right fixed bracket.

[0009] Preferably, the brake member includes a rotating shaft and a pedal, the two ends of the rotating shaft are respectively provided with connecting heads, the pedal is fixedly arranged at the head end of the rotating shaft near the connecting heads through a pedal arm, and a through hole is provided at the pedal arm near the rotating shaft, and a transmission pin is provided outwardly from the bottom of the through hole.

[0010] Preferably, an intermediate reinforcing plate is vertically provided at the connection between the pedal fixing bending part and the vacuum booster mounting frame, and an intermediate hole is provided on the intermediate reinforcing plate corresponding to the rotating shaft. After the rotating shaft passes through the intermediate hole, the connecting head at the rear end is connected to the left fixed bracket.

[0011] Preferably, the shaft head end connector is connected to the right fixed bracket via a bearing, and a return spring is sleeved outside the shaft head end connector, and the cross bar on the side of the return spring is respectively connected to the right fixed bracket and the pedal arm via through holes.

[0012] Preferably, the vacuum booster assembly is installed on the side of the vacuum booster mounting frame away from the rotating shaft through an M8 flange face nut, and the telescopic shaft of the vacuum booster assembly extends toward the rotating shaft through the mounting hole, the connecting head at the rear end of the rotating shaft is fixedly connected to the swing arm through an M20 thin nut and then connected to the left fixed bracket, the upper part of the swing arm is connected to the telescopic shaft of the vacuum booster through an axle pin, and is fastened by a cotter pin.

[0013] Preferably, the angle sensor is installed on a side of the right fixed bracket away from the rotating shaft through an angle sensor bracket, and the angle sensor is connected to the pedal through a transmission pin.

[0014] Compared with the prior art, the invention has the following beneficial effects:

[0015] 1. The compact structure and reasonable layout greatly increase the layout space in the instrument panel of the driving area, making the layout of compact vehicles more reasonable;

[0016] 2. The frame of the invention is basically made of small-section plates that are bent and welded together, which effectively reduces the overall cost of the vehicle;

[0017] 3. The two ends of the brake member of the invention are connected by bearings, which has low friction and convenient rotation during use, fundamentally ensuring the reliability of the assembly structure and its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The front side of the schematic diagram for assembling the invention;

[0019] Figure 2 Assemble the back of the schematic for the invention;

[0020] Figure 3 This is a schematic diagram of the structure of the fixing bracket assembly of the invention;

[0021] Figure 4 A schematic diagram of the brake structure is provided for the invention;

[0022] Figure 5 The schematic diagram of the structure of the return spring and the bearing is shown in FIG.

[0023] Figure 6 This is a schematic diagram of the structure of the right fixed bracket of the invention;

[0024] Figure 7 The invention is a schematic diagram of the structure of the angle sensor bracket and the angle sensor;

[0025] Figure 8 The present invention is a schematic diagram of the swing arm structure;

[0026] Markings in the figure: 1. Fixed bracket assembly, 101. Pedal fixed bending part, 1011. Small triangular reinforcement rib, 102. Vacuum booster mounting bracket, 1021. Reinforcement plate, 103. Left fixed bracket, 1031. Large reinforcement rib, 104. Right fixed bracket, 105. Middle reinforcement plate, 2. Brake part, 201. Rotating shaft, 202. Pedal, 203. Pedal arm, 2031. Transmission pin, 3. Vacuum booster assembly, 4. Angle sensor, 401. Angle sensor bracket, 5. Bearing, 6. Return spring, 7. Swing arm. DETAILED DESCRIPTION

[0027] The invention will be further explained below in conjunction with the accompanying drawings to facilitate better understanding by those skilled in the art.

[0028] Example 1

[0029] like Figure 1-8As shown, a brake pedal assembly based on a 6-meter full-load low-entry city bus includes a fixed bracket assembly 1, a brake component 2, a vacuum booster assembly 3, an angle sensor 4, a bearing 5, a return spring 6 and a swing arm 7. The head end of the brake component 2 is rotatably connected to the fixed bracket assembly 1, the tail end of the fixed bracket assembly 1 is fixedly connected to the vacuum booster assembly 3, and the tail end of the brake component 2 is rotatably connected to the fixed bracket assembly 1 and the vacuum booster assembly 3, and the angle sensor 4 is installed at the head end of the fixed bracket assembly 1 and connected to the brake component 2.

[0030] In this embodiment, the fixing bracket assembly 1 includes a pedal fixing bending member 101, a vacuum booster mounting frame 102, a left fixing bracket 103 and a right fixing bracket 104. The pedal fixing bending member 101 is an L-shaped plate with a predetermined length, and the rear end of the pedal fixing bending member 101 is bent outward and connected to the vacuum booster mounting frame 102. The vacuum booster mounting frame 102 is in the shape of a special-shaped plate, and its main part is rectangular. A mounting hole is provided in the middle part (main part) of the vacuum booster mounting frame 102, and fixing holes are provided around the mounting hole. The left fixing bracket 103 is arranged at the lower part of the rear end of the vacuum booster mounting frame 102, and a connecting hole is provided at the head end of the left fixing bracket 103 corresponding to the brake component 2, and is connected to the rear end of the brake component 2 through the connecting hole. The right side fixing bracket 104 is arranged below the head end of the pedal fixing bending part 101, the upper part of the right side fixing bracket 104 is connected to the pedal fixing bending part 101 by bolts, and a connecting hole is opened at the lower part corresponding to the brake part 2, and is connected to the head end of the brake part 2 through the connecting hole, and a round hole is opened on one side of the connecting hole.

[0031] Furthermore, a plurality of small triangular reinforcing ribs 1011 are provided at intervals along the length direction on the pedal fixing bending part 101, a reinforcing plate 1021 is vertically provided at the head end of the vacuum booster mounting frame 102 near the mounting hole, and a large reinforcing rib 1031 is horizontally provided at the connection between the vacuum booster mounting frame 102 and the left fixed bracket 103; these are used to enhance the structural strength of the components of the fixed bracket assembly 1 and ensure the reliability of the fixed bracket assembly 1.

[0032] In this embodiment, the brake member 2 includes a rotating shaft 201 and a pedal 202. The two ends of the rotating shaft 201 are respectively provided with connectors 2011. The pedal 202 is fixedly arranged at the head end of the rotating shaft 201 near the connector 2011 through a pedal arm 203. The pedal arm 203 is provided with a circular hole near the rotating shaft 201, and a transmission pin 2031 is provided outwardly below the circular hole. The connector 2011 at the head end of the rotating shaft 201 is connected to the right fixed bracket 104 through a bearing 5, and a return spring 6 is also sleeved outside the connector 2011 at the head end of the rotating shaft 201. The crossbar on the side of the return spring 6 is respectively connected to the right fixed bracket 104 and the pedal arm 203 through the circular hole. The pedal 202 and the vacuum booster assembly 3 are connected by the rotating shaft 2, and the fixed bracket assembly 1 is used as a support for the rotating shaft 201. The pedal 202 is stepped on and the rotating shaft 201 is used to transmit the power to achieve braking. The device structure is simplified, and the connection is made by means of a bearing 5. The friction is small during use, which reduces the force loss during the braking operation, enhances the user experience, and fundamentally guarantees the reliability of the assembly structure and its service life.

[0033] An intermediate reinforcing plate 105 is vertically provided at the connection between the pedal fixed bending part 101 and the vacuum booster mounting frame 102. A middle hole is provided on the intermediate reinforcing plate 105 corresponding to the rotating shaft. The rotating shaft 201 passes through the middle hole and is connected to the left fixed bracket 103 at the rear end of the connecting head 2011. The rotating shaft is supported by the intermediate reinforcing plate 105 to ensure the stability of the use of the rotating shaft 201 and the firmness of the assembly.

[0034] The vacuum booster assembly 3 is installed on the side of the vacuum booster mounting frame 102 away from the rotating shaft 201 through an M8 flange face nut, and the telescopic shaft of the vacuum booster assembly 3 extends to the rotating shaft 201 through the mounting hole; the connector 2011 at the tail end of the rotating shaft 201 is fixedly connected to the swing arm 7 through an M20 thin nut and then connected to the left fixed bracket 103, and the upper part of the swing arm 7 is connected to the telescopic shaft of the vacuum booster assembly 3 through an axle pin and fastened by a cotter pin.

[0035] The angle sensor 4 is installed on the side of the right fixed bracket 104 away from the rotating shaft 201 through the angle sensor bracket 401. The angle sensor 4 is connected to the pedal 202 through the transmission pin 2031 to sensitively detect changes in the pedal.

[0036] Installation method: During assembly, install the bearing 5 on the right fixed bracket 104, then install the brake 2 so that the rotating shaft 201 of the brake 2 passes through the middle hole of the middle reinforcing plate 105, place the swing arm 7 at the tail end of the rotating shaft 201 and align it with the corresponding notch to be sleeved on the tail end of the rotating shaft 201, use the M20 thin nut to lock the swing arm 7, then sleeve the return spring 6 on the connector 2011 at the head end of the rotating shaft 201 and install it in the bearing 5, and insert the crossbar on the side of the return spring 6 into the through holes on the right fixed bracket 104 and the pedal arm 203. Then use bolts to install the angle sensor bracket 401 on one side of the right fixed bracket 104, and install the angle sensor 4 to the corresponding position. Use an M8 flange nut to fix the vacuum booster assembly 3 to the vacuum booster mounting frame 102, so that the telescopic shaft of the vacuum booster assembly 3 extends out of the vacuum booster mounting frame 102 through the mounting hole, and install the telescopic shaft of the vacuum booster assembly 3 to the inner hole on the upper part of the swing arm 7 through the axle pin and the cotter pin.

[0037] The advantages of the invention are:

[0038] 1) The compact structure and reasonable layout greatly increase the layout space in the instrument panel of the driving area, making the layout of compact vehicles more reasonable;

[0039] 2) The frame is basically made of small-section plates that are bent and welded together, which effectively reduces the overall cost of the vehicle;

[0040] 3) The two ends of the brake part of the invention are connected by bearings, which has low friction and convenient rotation during use, fundamentally ensuring the reliability of the assembly structure and its service life.

[0041] The above description is only a specific implementation method of the invention, but the protection scope of the invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the invention, which should be covered within the protection scope of the invention. Therefore, the protection scope of the invention should be based on the protection scope of the claims.

Claims

1. A brake pedal assembly based on a 6-meter full-load low-entry city bus, characterized in that: The invention comprises a fixed support assembly (1), a brake component (2), a vacuum booster assembly (3) and an angle sensor (4), wherein the head end of the brake component (2) is rotatably connected to the fixed support assembly (1), the tail end of the fixed support assembly (1) is fixedly connected to the vacuum booster assembly (3), and the tail end of the brake component (2) is rotatably connected to the fixed support assembly (1) and the vacuum booster assembly (3), and the angle sensor (4) is mounted on the head end of the fixed support assembly (1) and connected to the brake component (2); the fixed support assembly (1) comprises a plurality of brake components; The invention comprises a pedal fixing bent piece (101), a vacuum booster mounting frame (102), a left fixing bracket (103) and a right fixing bracket (104), wherein the pedal fixing bent piece (101) is an L-shaped plate with a predetermined length, the rear end of the pedal fixing bent piece (101) is bent outwardly and connected to the vacuum booster mounting frame (102), a mounting hole is provided in the middle of the vacuum booster mounting frame (102), fixing holes are provided around the mounting hole, and the left fixing bracket (103) is arranged on the vacuum booster mounting frame The lower part of the rear end of the frame (102) is connected to the rear end of the brake member (2); the right side fixed bracket (104) is arranged below the head end of the pedal fixed bent member (101) and is connected to the head end of the brake member (2); and a mounting hole and a through hole are provided on the right side fixed bracket (104); a plurality of small triangular reinforcing ribs (1011) are provided at intervals along the length direction on the pedal fixed bent member (101); a reinforcing plate (1021) is vertically provided near the mounting hole at the head end of the vacuum booster mounting frame (102); and the vacuum booster mounting frame ( A large reinforcing rib (1031) is horizontally provided at a connection between the left fixed bracket (102) and the left fixed bracket (103); the brake member (2) comprises a rotating shaft (201) and a pedal (202); both ends of the rotating shaft (201) are respectively provided with connecting heads (2011); the pedal (202) is fixedly arranged at the head end of the rotating shaft (201) near the connecting head (2011) through a pedal arm (203); and a through hole is provided at the pedal arm (203) near the rotating shaft (201); a transmission pin (2031) is provided outwardly below the through hole.

2. The brake pedal assembly based on a 6-meter full-load low-entry city bus according to claim 1 is characterized in that: An intermediate reinforcing plate (105) is vertically provided at the connection between the pedal fixing bent member (101) and the vacuum booster mounting frame (102); an intermediate hole is provided on the intermediate reinforcing plate (105) corresponding to the rotating shaft (201); and the rotating shaft (201) is connected to the left fixed bracket (103) through a connecting head (211) at the rear end thereof after passing through the intermediate hole.

3. The brake pedal assembly based on a 6-meter full-load low-entry city bus according to claim 1 is characterized in that: The connecting head (2011) at the head end of the rotating shaft (201) is connected to the right fixed bracket (104) via a bearing (5), and a return spring (6) is sleeved outside the connecting head (2011) at the head end of the rotating shaft (201), and the cross bar on the side of the return spring (6) is respectively connected to the right fixed bracket (104) and the pedal arm (203) via through holes.

4. The brake pedal assembly based on a 6-meter full-load low-entry city bus according to claim 1, characterized in that: The vacuum booster assembly (3) is mounted on a side of the vacuum booster mounting frame (102) away from the rotating shaft (201) through an M8 flange nut, and the telescopic shaft of the vacuum booster assembly (3) extends toward the rotating shaft (201) through the mounting hole. The connector (211) at the rear end of the rotating shaft (201) is fixedly connected to the swing arm (7) through an M20 thin nut and then connected to the left fixed bracket (103). The upper part of the swing arm (7) is connected to the telescopic shaft of the vacuum booster assembly (3) through an axle pin and is fastened through a cotter pin.

5. The brake pedal assembly based on a 6-meter full-load low-entry city bus according to claim 1 is characterized in that: The angle sensor (4) is mounted on a side of the right fixed bracket (104) away from the rotating shaft (201) via an angle sensor bracket (401), and the angle sensor (4) is connected to the pedal (202) via a transmission pin (2031).

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