Multifunctional vacuum booster

Abstract

The utility model belongs to the field of vacuum booster, specifically is a kind of multifunctional vacuum booster, including booster shell, the side fixedly connected with first sleeve of booster shell, the side fixedly connected with second sleeve of booster shell, the surface of second sleeve is provided with anti-shake mechanism, anti-shake mechanism includes protective shell, the inner chamber fixed communication in the inner chamber of second sleeve of protective shell, the inner chamber slidingly connected with output push rod of protective shell, the side fixed communication of protective shell has first air pipe, the inner chamber slidingly connected with bottom plate of protective shell, one end of telescopic damping rod is fixedly connected with toothed plate, and the surface of telescopic damping rod is provided with first spring;The utility model is through anti-shake mechanism, avoid the traditional vacuum booster often lack the function of anti-shake, lead to when anti-lock system works, pedal can come very violent counter-jolt, cause pedal's feedback not clear, influence driver to continue to exert braking force.

Description

Technical Field

[0001] This utility model relates to the field of vacuum boosters, specifically a multifunctional vacuum booster. Background Technology

[0002] A vacuum booster, also known as a brake booster, is a key component in a car's braking system. It uses the vacuum negative pressure generated by the engine to amplify the force the driver exerts when pressing the brake pedal, making braking easier, more sensitive, and more effective. Without it, it would be very difficult to press the brake pedal in a modern car, especially when emergency braking is required.

[0003] Advanced braking-related functions typically require close collaboration with vacuum boosters. Although the anti-lock braking system (ABS) is primarily controlled by a hydraulic adjustment unit, the vacuum booster is the source of basic braking pressure. Traditional vacuum boosters often lack anti-shake functionality, resulting in severe back-thrusting of the pedal when the ABS is in operation. This leads to unclear pedal feedback and affects the driver's ability to continue applying braking force. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, traditional vacuum boosters often lack anti-shake functions, which leads to severe back-shaking of the pedal when the anti-lock braking system is working, resulting in unclear pedal feedback and affecting the driver's ability to continue applying braking force. This utility model proposes a multi-functional vacuum booster.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a multifunctional vacuum booster, including a booster shell, a first sleeve fixedly connected to one side of the booster shell, a second sleeve fixedly connected to one side of the booster shell, and an anti-shake mechanism provided on the surface of the second sleeve. The anti-shake mechanism includes a protective shell, the inner cavity of which is fixedly connected to the inner cavity of the second sleeve. An output push rod is slidably connected to the inner cavity of the protective shell. A first air pipe is fixedly connected to one side of the protective shell. A base plate is slidably connected to the inner cavity of the protective shell. A telescopic damping rod is fixedly connected to one side of the base plate. A toothed plate is fixedly connected to one end of the telescopic damping rod. A first spring is sleeved on the surface of the telescopic damping rod. One end of the first spring is fixedly connected to one side of the base plate, and the other end of the first spring is fixedly connected to the bottom of the toothed plate. A toothed groove is formed on the surface of the output push rod. The inner wall of the toothed groove meshes with the teeth of the toothed plate. A guide rod is fixedly connected to the inner cavity of the protective shell. The surface of the guide rod is slidably connected to the inner cavity at the bottom.

[0006] Preferably, a limiting plate is fixedly connected to the surface of the output push rod, and a second spring is sleeved on the surface of the output push rod. One end of the second spring is fixedly connected to the inner cavity of the booster housing, and the other end of the second spring is fixedly connected to one side of the limiting plate.

[0007] Preferably, one end of the output push rod is fixedly connected to an input push rod, a diaphragm is fixedly connected to the inner cavity of the booster housing, and the surface of the input push rod is fixedly connected to the inner cavity of the diaphragm.

[0008] Preferably, a limiting ring is fixedly connected to the surface of the input push rod, and a retaining plate is attached to one side of the limiting ring.

[0009] Preferably, a sealing ring is fixedly connected to the inner cavity of the first sleeve, and one side of the sealing ring is attached to one side of the limiting ring.

[0010] Preferably, an air intake chamber is fixedly connected to one side of the booster housing, a vacuum pump is provided on one side of the air intake chamber, a second air pipe is fixedly connected to the surface of the air intake chamber, and one end of the second air pipe is fixedly connected to the inner cavity of the booster housing.

[0011] Preferably, a third spring is fixedly connected to the inner cavity of the second trachea, and a sealing ball is fixedly connected to one end of the third spring.

[0012] The advantages of this utility model are: This invention employs an anti-shake mechanism. When the anti-lock braking system (ABS) is activated, the output push rod is pushed back by pressure from the hydraulic master pump, causing the pedal associated with the input push rod to vibrate violently. The output push rod pushes back into the device, reducing the left space. Air in the left space enters the inner cavity of the protective shell through the first air pipe, lifting the base plate and the toothed plate. A first spring then contacts the toothed plate's teeth with the output push rod, causing the teeth of the toothed plate to engage with the inner wall of the toothed groove on the surface of the output push rod. As the output push rod moves inward, if the amplitude of its vibration is insufficient to push the teeth of the toothed plate out of the groove, the output push rod will be locked by the toothed plate, thus preventing vibration. This solves the problem that traditional vacuum boosters often lack anti-shake functionality, resulting in violent vibration of the pedal when the ABS is activated, causing unclear pedal feedback and affecting the driver's ability to continue applying braking force. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first perspective view of the entire utility model; Figure 2 This is a second perspective view of the entire utility model; Figure 3 This is a three-dimensional schematic diagram of the interior of this utility model; Figure 4 This is a three-dimensional schematic diagram of the anti-shake mechanism of this utility model; Figure 5 This is a three-dimensional schematic diagram of the card plate of this utility model.

[0015] In the diagram: 1. Booster housing; 2. First sleeve; 3. Second sleeve; 4. Anti-shake mechanism; 401. Protective shell; 402. Output push rod; 403. First air pipe; 404. Base plate; 405. Telescopic damping rod; 406. Tooth plate; 407. First spring; 408. Tooth groove; 409. Guide rod; 5. Limiting plate; 6. Second spring; 7. Input push rod; 8. Diaphragm; 9. Limiting ring; 10. Clamping plate; 11. Sealing ring; 12. Intake chamber; 13. Vacuum pump; 14. Second air pipe; 15. Third spring; 16. Sealing ball. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses a multifunctional vacuum booster. (Refer to...) Figures 1 to 4 A multifunctional vacuum booster includes a booster housing 1, a first sleeve 2 fixedly connected to one side of the booster housing 1, a second sleeve 3 fixedly connected to one side of the booster housing 1, and an anti-shake mechanism 4 provided on the surface of the second sleeve 3. The anti-shake mechanism 4 includes a protective shell 401. The inner cavity of the protective shell 401 is fixedly connected to the inner cavity of the second sleeve 3. An output push rod 402 is slidably connected to the inner cavity of the protective shell 401. A first air pipe 403 is fixedly connected to one side of the protective shell 401. A base plate 404 is slidably connected to the inner cavity of the protective shell 401. A telescopic damping rod 405 is fixedly connected to one side of the base plate 404. A toothed plate 406 is fixedly connected to one end of the telescopic damping rod 405. The surface of the telescopic damping rod 405 is covered with a sleeve. A first spring 407 is provided, one end of which is fixedly connected to one side of the base plate 404, and the other end of which is fixedly connected to the bottom of the toothed plate 406. A toothed groove 408 is formed on the surface of the output push rod 402, and the inner wall of the groove 408 meshes with the teeth of the toothed plate 406. A guide rod 409 is fixedly connected to the inner cavity of the protective shell 401, and the surface of the guide rod 409 is slidably connected to the bottom inner cavity. Through the anti-shake mechanism 4, one end of the output push rod 402 is associated with the hydraulic master pump, and the anti-lock system can receive hydraulic pressure from the vacuum booster and the master pump. When the anti-lock device is working, the output push rod 402 will be pushed back by the pressure from the hydraulic master pump, causing the pedal associated with the input push rod 7 to vibrate violently. The diaphragm 8 divides the inner cavity of the booster shell 1 into a left space and a right space. The output push rod 402 pushes back into the device, making the left space smaller. Air in the left space enters the protective shell through the first air pipe 403. The inner cavity of 401 lifts the base plate 404 and the toothed plate 406, and the toothed surface of the toothed plate 406 contacts the output push rod 402 through the first spring 407, so that the teeth of the toothed plate 406 are engaged with the inner wall of the toothed groove 408 opened on the surface of the output push rod 402. As the output push rod 402 moves inward, if the amplitude of its shaking cannot push the teeth of the toothed plate 406 out of the toothed groove 408, the output push rod 402 will be locked by the toothed plate 406, thus preventing shaking.

[0018] Reference Figure 3 The output push rod 402 is fixedly connected to the limiting plate 5. The output push rod 402 is fitted with a second spring 6. One end of the second spring 6 is fixedly connected to the inner cavity of the booster housing 1, and the other end of the second spring 6 is fixedly connected to one side of the limiting plate 5. By setting the second spring 6, when the pedal is pressed to move the output push rod 402 outward, the second spring 6 is compressed and accumulates elastic potential energy. When the pedal is released, the second spring 6 releases the elastic potential energy to reset the output push rod 402.

[0019] Reference Figure 3 and Figure 5One end of the output push rod 402 is fixedly connected to the input push rod 7. The inner cavity of the booster housing 1 is fixedly connected to the diaphragm 8. The surface of the input push rod 7 is fixedly connected to the inner cavity of the diaphragm 8. By setting the diaphragm 8, the diaphragm 8 divides the inner cavity of the booster housing 1 into a left space filled with air and a right space filled with vacuum. The input push rod 7 can be pushed into the device by stepping on the pedal, thereby changing the shape of the diaphragm 8 and changing the size of the left and right spaces.

[0020] Reference Figure 3 and Figure 5 A limiting ring 9 is fixedly connected to the surface of the input push rod 7. A clamping plate 10 is attached to one side of the limiting ring 9. By setting the limiting ring 9 and the clamping plate 10, as the input push rod 7 moves, the limiting ring 9 fixedly connected to its surface will clamp the clamping plate 10 from both sides, so that the clamping plate 10 moves synchronously with the input push rod 7. A right through hole is opened on the surface of the clamping plate 10, so that outside air can enter the left space through the through hole.

[0021] Reference Figure 3 A sealing ring 11 is fixedly connected to the inner cavity of the first sleeve 2. One side of the sealing ring 11 is attached to one side of the limiting ring 9. By setting the sealing ring 11, in normal state, one side of the sealing ring 11 will be attached to one side of the limiting ring 9, so that air cannot enter the left space.

[0022] Reference Figures 1 to 3 A suction chamber 12 is fixedly connected to one side of the booster housing 1. A vacuum pump 13 is provided on one side of the suction chamber 12. A second air pipe 14 is fixedly connected to the surface of the suction chamber 12. One end of the second air pipe 14 is fixedly connected to the inner cavity of the booster housing 1. By setting the vacuum pump 13, the vacuum pump 13 can extract air to keep the right space in a vacuum state. The vacuum pump 13 is an existing structure and will not be described further. By setting the second air pipe 14, the left space and the right space can be connected, and the left space is also kept in a vacuum under normal conditions.

[0023] Reference Figures 1 to 3 A third spring 15 is fixedly connected to the inner cavity of the second air tube 14. A sealing ball 16 is fixedly connected to one end of the third spring 15. By setting the third spring 15 and the sealing ball 16, under normal conditions, the sealing ball 16 falls due to gravity, making the second air tube 14 unobstructed and the left and right spaces vacuumed. When the clamping plate 10 moves, it pushes the sealing ball 16 upward, thereby blocking the second air tube 14 and isolating the left and right spaces.

[0024] Working principle: The diaphragm 8 divides the inner cavity of the booster housing 1 into a left space and a right space. Under normal conditions, the second air pipe 14 and the vacuum pump 13 are used to evacuate the left and right spaces to make the pressure in the left and right spaces basically the same. When the pedal is pressed, the input push rod 7 moves into the device, causing the limiting ring 9 and the clamping plate 10 to move. One side of the sealing ring 11 will disengage from one side of the limiting ring 9, allowing air to enter the left space. The movement of the clamping plate 10 pushes the sealing ball 16 upward, thereby blocking the second air pipe 14 and isolating the left and right spaces. The left space is filled with air, and under the action of air pressure, the diaphragm 8 is pushed to bulge into the right space, thus assisting the pedal to be pressed. Since one end of the output push rod 402 is associated with the hydraulic master pump, and the anti-lock system can receive air from the vacuum booster... When the anti-lock braking system (ABS) is activated, the output push rod 402 is pushed back by the pressure from the hydraulic master pump, causing the pedal associated with the input push rod 7 to vibrate violently. This reduces the size of the left space, allowing air in the left space to enter the inner cavity of the protective shell 401 through the first air pipe 403. This lifts the base plate 404 and the toothed plate 406, and the first spring 407 contacts the toothed surface of the toothed plate 406 with the output push rod 402. This causes the teeth of the toothed plate 406 to engage with the inner wall of the toothed groove 408 on the surface of the output push rod 402. If the amplitude of the vibration caused by the output push rod 402 is insufficient to push the teeth of the toothed plate 406 out of the toothed groove 408, the output push rod 402 will be locked by the toothed plate 406, thus preventing vibration.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multifunctional vacuum booster, characterized in that: Includes a booster housing (1), a first sleeve (2) is fixedly connected to one side of the booster housing (1), a second sleeve (3) is fixedly connected to one side of the booster housing (1), and a stabilization mechanism (4) is provided on the surface of the second sleeve (3). The anti-shake mechanism (4) includes a protective shell (401), the inner cavity of which is fixedly connected to the inner cavity of the second sleeve (3), an output push rod (402) is slidably connected to the inner cavity of the protective shell (401), a first air pipe (403) is fixedly connected to one side of the protective shell (401), a base plate (404) is slidably connected to the inner cavity of the protective shell (401), a telescopic damping rod (405) is fixedly connected to one side of the base plate (404), and a toothed plate (406) is fixedly connected to one end of the telescopic damping rod (405). A first spring (407) is sleeved on the surface of the telescopic damping rod (405). One end of the first spring (407) is fixedly connected to one side of the base plate (404), and the other end of the first spring (407) is fixedly connected to the bottom of the toothed plate (406). The surface of the output push rod (402) is provided with a toothed groove (408). The inner wall of the toothed groove (408) meshes with the teeth of the toothed plate (406). A guide rod (409) is fixedly connected to the inner cavity of the protective shell (401). The surface of the guide rod (409) is slidably connected to the inner cavity at the bottom.

2. The multifunctional vacuum booster according to claim 1, characterized in that: The output push rod (402) is fixedly connected to the limiting plate (5), and a second spring (6) is sleeved on the surface of the output push rod (402). One end of the second spring (6) is fixedly connected to the inner cavity of the booster housing (1), and the other end of the second spring (6) is fixedly connected to one side of the limiting plate (5).

3. The multifunctional vacuum booster according to claim 1, characterized in that: One end of the output push rod (402) is fixedly connected to the input push rod (7), and the inner cavity of the booster housing (1) is fixedly connected to the diaphragm (8). The surface of the input push rod (7) is fixedly connected to the inner cavity of the diaphragm (8).

4. A multifunctional vacuum booster according to claim 3, characterized in that: The surface of the input push rod (7) is fixedly connected to a limiting ring (9), and a card plate (10) is attached to one side of the limiting ring (9).

5. A multifunctional vacuum booster according to claim 1, characterized in that: The inner cavity of the first sleeve (2) is fixedly connected to a sealing ring (11), and one side of the sealing ring (11) is attached to one side of the limiting ring (9).

6. A multifunctional vacuum booster according to claim 1, characterized in that: A suction chamber (12) is fixedly connected to one side of the booster housing (1), and a vacuum pump (13) is provided on one side of the suction chamber (12). A second air pipe (14) is fixedly connected to the surface of the suction chamber (12), and one end of the second air pipe (14) is fixedly connected to the inner cavity of the booster housing (1).

7. A multifunctional vacuum booster according to claim 6, characterized in that: The inner cavity of the second trachea (14) is fixedly connected to a third spring (15), and one end of the third spring (15) is fixedly connected to a sealing ball (16).

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