A length-adjustable brake connection mechanism

Abstract

The utility model provides a kind of brake connecting mechanism with adjustable length, including mounting plate, bolt and flange nut, mounting plate side is equipped with support plate, bolt is worn in support plate and is fixed by flange nut, bolt both ends are equipped with bearing, bearing is equipped with rotating drum assembly, rotating drum assembly includes rotating drum one, rotating drum two, swing arm one and swing arm two, the end of rotating drum one and rotating drum two is equipped with evenly spaced rectangular tooth part, one rectangular tooth part has magnetism, rotating drum one and rotating drum two are engaged by rectangular tooth part, swing arm one and swing arm two are respectively equipped with rotating drum one and rotating drum two mutually distant rectangular tooth part one end, swing arm two is rotatably connected with pull rod assembly, and the length of pull rod assembly is adjustable.The utility model adjusts the relative position of rotating drum one and rotating drum two on rectangular tooth part, can adjust the included angle of vacuum booster push rod and swing arm one, and adjust the included angle of swing arm two and pull rod assembly, so that the whole mechanism meets lever ratio relationship when braking.

Description

Technical Field

[0001] This utility model relates to the field of braking connection technology, and in particular to a braking connection mechanism with adjustable length. Background Technology

[0002] With the rapid development of electric vehicle technology, the braking system, as a key component ensuring driving safety, and the braking connection mechanism, as an important part of the braking system, rely primarily on the precise coordination of the transmission mechanism for their working principle. During electric vehicle operation, when the driver needs to reduce speed or stop, pressing the brake pedal drives a lever to move. This lever pulls a rotating control arm, which is connected to a vacuum booster. The vacuum booster assists the hydraulic master cylinder and connects to the brake calipers on the four wheels via brake lines. The Electronic Stability Program (ESP) precisely calculates and distributes braking force based on various factors such as vehicle status, speed, and braking pressure to achieve vehicle deceleration or stopping.

[0003] In existing electric vehicle braking systems, the brake pedal is often placed at the bottom of the driver's cab, which is far from the vacuum booster. Therefore, a brake connection mechanism is needed to connect them. However, the lever ratio of the existing brake connection mechanism is fixed. Since the design and installation of the braking system need to take into account the different braking requirements of different models and usage scenarios, when the installation position of the brake pedal or vacuum booster is changed, the lever arm will change, which will change the lever ratio and affect the feel of the brake pedal. Utility Model Content

[0004] In view of this, the present invention proposes a brake connection mechanism with adjustable length in order to solve the problems mentioned above.

[0005] The technical solution of this utility model is implemented as follows:

[0006] An adjustable-length braking connection mechanism includes a mounting plate, bolts, and flange nuts. Support plates are provided on opposite sides of the mounting plate, and the support plates have holes. The bolts pass through the two support plates and are fixed by the flange nuts. Bearings are provided at both ends of the bolts. A rotating cylinder assembly is fitted onto the outer ring of each bearing. The rotating cylinder assembly includes a first rotating cylinder, a second rotating cylinder, a first swing arm, and a second swing arm. The ends of the first and second rotating cylinders have evenly spaced rectangular teeth, one of which is magnetic. The first and second rotating cylinders mesh with each other through the rectangular teeth. The swing arm is fitted onto the end of the first rotating cylinder away from the rectangular teeth, and the second swing arm is fitted onto the end of the second rotating cylinder away from the rectangular teeth. The first swing arm has a mating hole, and the second swing arm is rotatably connected to a pull rod assembly. The length of the pull rod assembly is adjustable.

[0007] Preferably, the bolt includes a nut end and a rod body, one end of the rod body is provided with a nut end, the nut end is provided with a flange face, and the end of the rod body is provided with threads.

[0008] Preferably, it also includes a sleeve and a gasket. The rod body is provided with a trapezoidal step, the end face of which abuts against the inner ring of the bearing. The sleeve is sleeved on the rod body and located between the two bearings. The gasket is sleeved on the screw and located between the bearing and the support plate. The side of the gasket abuts against the inner ring of the bearing.

[0009] Preferably, the pull rod assembly includes a ring, a pull rod, a welding nut, a U-shaped frame, a round pin, and a cotter pin. The ring is located at one end of the pull rod, the end of the U-shaped frame is provided with a welding nut, the end of the pull rod away from the ring is provided with a locking thread and connected to the welding nut, the other end of the U-shaped frame is rotatably connected to the swing arm II through the round pin, and the round pin is fixed to the U-shaped frame by the cotter pin.

[0010] Preferably, it also includes a locking nut, which is disposed on the pull rod and located inside the U-shaped frame.

[0011] Preferably, the second swing arm is provided with multiple through holes, and the axis of the through holes is not at the same distance from the axis of the second rotating drum.

[0012] Preferably, the mounting plate has mounting holes facing each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This braking connection mechanism is equipped with two meshing rotating cylinders, cylinder one and cylinder two. The braking connection mechanism is used to connect the brake pedal and the vacuum booster, which is beneficial for arranging the brake pedal and the vacuum booster at different positions on the frame. By adjusting the relative positions of cylinder one and cylinder two on the rectangular teeth, the included angle between the vacuum booster push rod and swing arm one, as well as the included angle between swing arm two and the tie rod assembly, can be adjusted so that the entire mechanism satisfies a certain leverage ratio relationship when braking, and maintains a consistent feel when pressing the brake pedal.

[0015] 2. Multiple through holes are provided on the second swing arm. The U-shaped bracket is connected to different through holes by round pins, which can adjust the lever ratio between the first and second swing arms. This meets the needs of different braking systems in different vehicle configurations and improves the commonality of parts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an adjustable-length braking connection mechanism according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a length-adjustable braking connection mechanism according to the present invention;

[0019] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0020] Reference numerals: 1. Mounting plate; 2. Mounting hole; 3. Support plate; 4. Nut end; 5. Rod body; 6. Flange nut; 7. Bearing; 8. Rectangular toothed part; 9. Rotary cylinder one; 10. Rotary cylinder two; 11. Swing arm one; 12. Swing arm two; 13. Butt hole; 14. Cotter pin; 15. Round pin; 16. U-shaped bracket; 17. Locking nut; 18. Welding nut; 19. Tie rod; 20. Ring; 21. Through hole; 22. Washer; 23. Sleeve. Detailed Implementation

[0021] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0022] See Figures 1 to 3 This utility model provides an adjustable-length braking connection mechanism, including a mounting plate 1, bolts, and flange nuts 6. Support plates 3 are provided on opposite sides of the mounting plate 1. The support plates 3 have holes. The bolts pass through the two support plates 3 and are fixed by the flange nuts 6. Bearings 7 are provided at both ends of the bolts. A rotating cylinder assembly is fitted onto the outer ring of each bearing 7. The rotating cylinder assembly includes a first rotating cylinder 9, a second rotating cylinder 10, a first swing arm 11, and a second swing arm 12. The ends of the first rotating cylinder 9 and the second rotating cylinder 10 have evenly spaced... A rectangular toothed portion 8, one of which is magnetic, is provided. Rotary cylinder 1 9 and rotary cylinder 2 10 are meshed with each other through the rectangular toothed portion 8. A swing arm 1 11 is sleeved on the end of rotary cylinder 1 9 away from the rectangular toothed portion 8, and a swing arm 2 12 is sleeved on the end of rotary cylinder 2 10 away from the rectangular toothed portion 8. A docking hole 13 is provided on the swing arm 1 11, which is used to connect the shift fork at the end of the vacuum booster push rod. A pull rod assembly is rotatably connected to the swing arm 2 12. The length of the pull rod assembly is adjustable, and the pull rod assembly is used to connect the brake pedal.

[0023] During assembly of the brake connection mechanism, first, mount plate 1 is installed on the frame. The mating hole 13 and the shift fork at the end of the vacuum booster push rod are then rotatably connected, ensuring that swing arm 11 is perpendicular to the vacuum booster push rod. Next, one end of the pull rod assembly is rotatably connected to the brake pedal. The angle between the pull rod assembly and swing arm 12 is observed. If the angle is significantly different from a right angle, the rotating cylinder 10 can be pulled away from the rotating cylinder 9, causing the rectangular teeth 8 of the rotating cylinder 10 and the rotating cylinder 9 to separate. Then, the rotating cylinder 10 is rotated to adjust the swing arm 12. The angle between swing arm 12 and the tie rod assembly is adjusted, and the length of the tie rod assembly is adjusted simultaneously to make the angle as close to a right angle as possible. Then, the rectangular teeth 8 of the second rotating cylinder 10 and the first rotating cylinder 9 are engaged together. The rectangular teeth 8 are magnetic, and the second rotating cylinder 10 and the first rotating cylinder 9 attract each other. Because the rectangular teeth 8 are evenly arranged, when the second rotating cylinder 10 rotates one tooth in the forward direction and one tooth in the reverse direction, the angle between the swing arm 12 and the tie rod assembly relative to the right angle increases or decreases. This allows us to determine the most suitable engagement position between the second rotating cylinder 10 and the first rotating cylinder 9. The brake connection mechanism is used to connect the brake pedal and the vacuum booster, which is beneficial for arranging the brake pedal and the vacuum booster at different positions on the frame. The angle between the vacuum booster push rod and the first rotating arm 11, as well as the angle between the second rotating arm 12 and the tie rod assembly, can be adjusted so that the entire mechanism meets a certain lever ratio relationship during braking, satisfying the layout requirements of the braking system.

[0024] Preferably, the bolt includes a nut end 4 and a rod body 5, one end of the rod body 5 is provided with the nut end 4, the nut end 4 is provided with a flange face, and the end of the rod body 5 is provided with threads.

[0025] The screw 5 is fixed to the two support plates 3 by the nut 6 to provide stable support for the bearing 7. When tightened, the nut end 4 and the side of the support plate 3 abut against each other to ensure that the rod 5 can be firmly installed on the support plate 3, thereby ensuring the stability and reliability of the entire structure.

[0026] Preferably, it also includes a sleeve 23 and a gasket 22. The rod body 5 is provided with a trapezoidal step, the end face of which abuts against the inner ring of the bearing 7. The sleeve 23 is sleeved on the rod body 5 and located between the two bearings 7. The gasket 22 is sleeved on the rod body 5 and located between the bearing 7 and the support plate 3. The side of the gasket 22 abuts against the inner ring of the bearing 7.

[0027] During the tightening of bolts and flange nuts 6, the support plate 3 will deform to a certain extent under stress. This deformation will cause the gasket 22 to press against the inner ring of the bearing 7, and simultaneously, the two bearings 7 and the intermediate sleeve 23 will also be pressed together. The side of one end of the bearing 7 will be tightly pressed against the end face of the trapezoidal step. This tight pressing ensures the limiting function of the bearing 7 and guarantees stability during operation.

[0028] Preferably, the pull rod assembly includes a ring 20, a pull rod 19, a welding nut 18, a U-shaped frame 16, a round pin 15, and a cotter pin 14. The ring 20 is located at one end of the pull rod 19, and the welding nut 18 is located at the end of the U-shaped frame 16. The end of the pull rod 19 away from the ring 20 is provided with a locking thread and connected to the welding nut 18. The other end of the U-shaped frame 16 is rotatably connected to the swing arm 12 through the round pin 15, and the round pin 15 is fixed to the U-shaped frame 16 through the cotter pin 14.

[0029] The ring 20 is used to connect to the brake pedal. When the driver presses the brake pedal, it moves the ring 20, which in turn moves the pull rod 19. The pull rod 19 then moves the U-shaped frame 16, causing the swing arm 12 to rotate around the axis of the bearing 7, thus transmitting displacement and torque to achieve braking. During assembly, the pull rod 19 and the U-shaped frame 16 are connected by a welded nut 18. Rotating the pull rod 19 can adjust the overall length of the pull rod 19 and the U-shaped frame 16. After the ring 20 is installed on the brake pedal, the pin 15 is passed through the U-shaped frame 16, and then the cotter pin 14 is inserted into the pin 15 to complete the installation.

[0030] Preferably, it also includes a locking nut 17, which is disposed on the pull rod 19 and located inside the U-shaped frame 16.

[0031] Adjust the overall length of the pull rod 19 and the U-shaped frame 16 by rotating the pull rod 19. After the adjustment is completed, screw the locking nut 17 into the end of the pull rod 19 and lock the pull rod 19 onto the U-shaped frame 16 together with the welding nut 18 to prevent the pull rod 19 from loosening and generating noise during braking.

[0032] Preferably, the second swing arm 12 is provided with a plurality of through holes 21, and the axis of the through holes 21 is not at the same distance from the axis of the second rotating cylinder 10.

[0033] Electric vehicles often have different vehicle configurations, and different vehicle configurations require different braking systems and different vacuum boosters. By connecting the U-shaped frame 16 to different through holes 21 through the round pin 15, the lever ratio between the first swing arm 11 and the second swing arm 12 can be adjusted, thereby improving the commonality of parts.

[0034] Preferably, the mounting plate 1 has mounting holes 2 opposite to each other, and the mounting plate 1 is fixedly mounted on the vehicle frame through the mounting holes 2.

[0035] Mounting plate 1 has mounting holes 2 on it. Mounting plate 1 is securely installed on the frame by means of these mounting holes 2, and the entire braking connection mechanism can be quickly disassembled and assembled, avoiding the tedious assembly of parts on the frame where the operating space is limited.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A length-adjustable brake connection mechanism, characterized by, The assembly includes a mounting plate, bolts, and flange nuts. Support plates are positioned opposite each other on the sides of the mounting plate, and the support plates have holes. The bolts pass through the two support plates and are secured by flange nuts. Bearings are located at both ends of the bolts, and a rotating cylinder assembly is fitted onto the outer ring of each bearing. The rotating cylinder assembly includes a first rotating cylinder, a second rotating cylinder, a first swing arm, and a second swing arm. The ends of the first and second rotating cylinders have evenly spaced rectangular teeth, one of which is magnetic. The first and second rotating cylinders mesh with each other through the rectangular teeth. A swing arm is fitted onto the end of the first rotating cylinder furthest from the rectangular teeth, and the second swing arm is fitted onto the end of the second rotating cylinder furthest from the rectangular teeth. The first swing arm has a mating hole, and the second swing arm is rotatably connected to a pull rod assembly. The length of the pull rod assembly is adjustable.

2. A length adjustable brake connection mechanism according to claim 1, wherein The bolt includes a nut end and a rod body. One end of the rod body is provided with a nut end, the nut end is provided with a flange face, and the end of the rod body is provided with threads.

3. The adjustable-length braking connection mechanism according to claim 2, characterized in that, It also includes a sleeve and a gasket. The rod body is provided with a trapezoidal step. The end face of the trapezoidal step abuts against the inner ring of the bearing. The sleeve is sleeved on the rod body and located between the two bearings. The gasket is sleeved on the screw and located between the bearing and the support plate. The side of the gasket abuts against the inner ring of the bearing.

4. The adjustable-length braking connection mechanism according to claim 1, characterized in that, The pull rod assembly includes a ring, a pull rod, a welding nut, a U-shaped frame, a round pin, and a cotter pin. The ring is located at one end of the pull rod, and the end of the U-shaped frame is provided with a welding nut. The end of the pull rod away from the ring is provided with a locking thread and connected to the welding nut. The other end of the U-shaped frame is rotatably connected to the swing arm via a round pin, and the round pin is fixed to the U-shaped frame by a cotter pin.

5. The adjustable-length braking connection mechanism according to claim 4, characterized in that, It also includes a locking nut, which is located on the pull rod and inside the U-shaped frame.

6. The adjustable-length braking connection mechanism according to claim 1, characterized in that, The second swing arm is provided with multiple through holes, and the axis of the through holes is not at the same distance from the axis of the second rotating drum.

7. The adjustable-length braking connection mechanism according to claim 1, characterized in that, The mounting plate has mounting holes facing each other.

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