Low-noise vacuum booster component
By designing the booster push rod, sound insulation assembly and buffer assembly in the vacuum booster, the problem of noise generated by the vacuum booster during the return journey is solved, and the low-noise vacuum booster components are realized, which improves the use effect and production simplicity .
Patent Information
- Application Number
- CN202421456138.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The existing vacuum boosters generate noise during the return journey and need to pass the riveting process, resulting in a not-simple production process and noise problems affect customer satisfaction.
Design a low-noise vacuum booster component, push the air chamber diaphragm through the booster pusher to assist in the power work, drive the brake cylinder pusher to assist in the power work, and use sound insulation cotton rings and sealing rings to protect the vacuum check valve and vacuum Valves reduce noise and reduce wear between the air chamber diaphragm and booster housing through non-Newtonian fluid collisions in the multi-pass hose.
It effectively reduces the noise of the vacuum booster, improves the use effect, avoids the increased production complexity and cost of the riveting process, and extends the service life of the equipment.
Smart Images
Figure CN222512206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum boosters, in particular to a low-noise vacuum booster component. Background Art
[0002] The vacuum booster is a key component in the automobile braking system. Its main function is to amplify the brake pedal force through the vacuum booster to obtain a larger output force, which acts on the brake master cylinder piston to make it move forward, thereby generating hydraulic pressure in the brake master cylinder pressure chamber, and then delivering hydraulic pressure to the entire vehicle's braking system through the brake master cylinder oil outlet, thereby achieving the vehicle's braking function with a smaller brake pedal force.
[0003] During the return process of the existing vacuum booster, the lock plate hits the metal frame when returning to its position, generating return noise, and needs to be riveted by equipment; in today's automotive industry, as customer requirements continue to increase, noise issues have become a top priority. If the noise issue is not properly handled, customer satisfaction will be seriously reduced, and the riveting process also increases processing equipment, making the production process complicated and increasing costs.
[0004] Therefore, it is particularly important to design a new low-noise vacuum booster component to solve the above technical defects and improve the practicality of the overall low-noise vacuum booster component. Utility Model Content
[0005] The purpose of the utility model is to provide a low-noise vacuum booster component, which can push the air chamber diaphragm to perform boosting work through the booster push rod, and drive the brake cylinder push rod to perform boosting pushing work. During the boosting work, the brake cylinder push rod and the booster push rod slide at both ends of the booster housing. During the activity, the vacuum check valve and the vacuum valve are respectively protected by a sound insulation cotton ring and a sealing ring, thereby reducing the activity range of the vacuum check valve and the vacuum valve, thereby reducing the noise generated by the activity and improving the use effect. During long-term operation, the air chamber diaphragm inside the booster housing will continue to move to adjust the air pressure inside the air chamber. During the activity of the air chamber diaphragm, the non-Newtonian fluid inside the multi-way hose can collide with the inner wall of the booster housing, thereby reducing the wear between the air chamber diaphragm and the booster housing, further reducing the noise inside the booster housing, thereby improving the use effect of the vacuum booster, so as to solve the problems raised in the above-mentioned background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A low-noise vacuum booster component comprises a booster housing, a booster push rod is slidably connected to the center of the booster housing, a sound insulation component is provided at the front and rear sides of the booster housing and at positions corresponding to the booster push rod, and a buffer component is provided inside the booster housing and at positions corresponding to the booster push rod;
[0008] The sound insulation component is used to soundproof the interior of the booster housing;
[0009] The buffer assembly is used for buffering the booster push rod.
[0010] As a preferred solution of the utility model, the sound insulation component includes a vacuum valve, a vacuum one-way valve, a sound insulation cotton ring and a sealing ring. The vacuum valve is fixedly connected to the front side of the booster housing and is located at a position corresponding to the booster push rod.
[0011] As a preferred solution of the utility model, a vacuum one-way valve is fixedly connected to the back side of the booster housing and at a position corresponding to the booster push rod, sound insulation cotton rings are provided on the front and rear sides of the booster housing and on the outsides of the vacuum valve and the vacuum one-way valve, and sealing rings made of silicone are provided on the front and rear sides of the booster housing and on the outside of the booster push rod.
[0012] As a preferred solution of the utility model, a compression sleeve is provided on the front side of the booster push rod, a brake cylinder push rod is provided on the back side of the booster push rod, a multi-way hose is fixedly connected at the center of the booster housing and located on the outside of the booster push rod, an air chamber diaphragm is provided inside the booster housing and on the side close to the compression sleeve, and an air valve is provided inside the booster housing and on the side close to the brake cylinder push rod.
[0013] As a preferred solution of the utility model, the buffer assembly includes a buffer frame, a buffer column, a buffer spring, a buffer plate, a pull ring and a connecting spring. The buffer frame is fixedly connected to the inside of the booster housing and is located on the outside of the booster push rod.
[0014] As a preferred solution of the utility model, buffer columns are fixedly connected inside the buffer frame and around the booster push rod, buffer springs are sleeved on the front and rear sides of the outer sides of the four groups of buffer columns, and buffer plates are fixedly connected to the outer side of the booster push rod and at positions corresponding to several buffer springs.
[0015] As a preferred solution of the utility model, pull rings are provided between the booster housing and the plurality of buffer plates, connecting springs are provided inside the plurality of pull rings, and the connection modes of the plurality of buffer plates and the buffer columns are sliding connections.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] In the utility model, through the design of the buffer component and the sound insulation component, the booster push rod can push the air chamber diaphragm to perform the boosting work, and drive the brake cylinder push rod to perform the boosting pushing work. During the boosting work, the brake cylinder push rod and the booster push rod slide at the two ends of the booster housing. During the movement, the vacuum check valve and the vacuum valve are respectively protected by the sound insulation cotton ring and the sealing ring, and the movement range of the vacuum check valve and the vacuum valve is reduced, thereby reducing the noise generated by the movement and improving the use effect. In addition, during long-term operation, the air chamber diaphragm inside the booster housing will continuously move to adjust the air pressure inside the air chamber. During the movement of the air chamber diaphragm, the non-Newtonian fluid inside the multi-way hose can collide with the inner wall of the booster housing, thereby reducing the wear between the air chamber diaphragm and the booster housing, further reducing the noise inside the booster housing, and thus improving the use effect of the vacuum booster. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure.
[0021] In the figure: 1. booster housing; 101. multi-way hose; 102. air chamber diaphragm; 103. air valve; 2. booster push rod; 201. compression sleeve; 202. brake cylinder push rod; 3. sound insulation assembly; 301. vacuum valve; 302. vacuum check valve; 303. sound insulation cotton ring; 304. sealing ring; 4. buffer assembly; 401. buffer frame; 402. buffer column; 403. buffer spring; 404. buffer plate; 405. pull ring; 406. connecting spring. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example
[0023] See also Figure 1-Figure 3 , the utility model provides a technical solution:
[0024] A low-noise vacuum booster component comprises a booster housing 1, a booster push rod 2 is slidably connected at the center of the booster housing 1, a sound insulation component 3 is provided at the front and rear sides of the booster housing 1 and at positions corresponding to the booster push rod 2, and a buffer component 4 is provided inside the booster housing 1 and at positions corresponding to the booster push rod 2;
[0025] Among them, a compression sleeve 201 is provided on the front of the booster push rod 2, a brake cylinder push rod 202 is provided on the back of the booster push rod 2, a multi-way hose 101 is fixedly connected at the center of the booster housing 1 and on the outside of the booster push rod 2, an air chamber diaphragm 102 is provided inside the booster housing 1 and on the side close to the compression sleeve 201, and an air valve 103 is provided inside the booster housing 1 and on the side close to the brake cylinder push rod 202.
[0026] Specifically, first, the brake cylinder push rod 202 drives the booster push rod 2 to move in the booster housing 1, and then the booster push rod 2 drives the air chamber diaphragm 102 to perform the boosting work, and the compression sleeve 201 is installed with a compression spring inside. When the booster push rod 2 is pushed forward, the booster push rod 2 continues to be pushed, and the brake fluid in the master cylinder flows into the brake wheel cylinder with a certain pressure, thereby driving the brake cylinder push rod 202 to push, and the compression sleeve 201 is installed with a compression spring inside. Through its control force, it pushes the booster push rod 2 to move forward, and continues to push the booster push rod 2 to move, and the air During the movement of the chamber diaphragm 102, the non-Newtonian fluid inside the multi-way hose 101 can collide with the inner wall of the booster housing 1, thereby reducing the wear between the air chamber diaphragm 102 and the booster housing 1, and further reducing the noise inside the booster housing 1, thereby improving the use effect of the vacuum booster. At this time, the force of the booster push rod 2 is the sum of the pedal force and the thrust of the air chamber reaction plate, which makes the pressure output by the brake master cylinder increase exponentially to achieve boosting work. At this time, the buffer component 4 has a buffering effect on the booster push rod 2, and the sound insulation component 3 mutes the volume generated when the booster push rod 2 is active.
[0027] Then, see Figure 1 A sound insulation component 3 is provided on the front and rear sides of the booster housing 1 and at a position corresponding to the booster push rod 2;
[0028] The sound insulation component 3 is used to soundproof the interior of the booster housing 1. The specific structure of the sound insulation component 3 is as follows:
[0029] The sound insulation component 3 includes a vacuum valve 301, a vacuum one-way valve 302, a sound insulation cotton ring 303 and a sealing ring 304. The vacuum valve 301 is fixedly connected to the front of the booster housing 1 and is located at a position corresponding to the booster push rod 2. The vacuum one-way valve 302 is fixedly connected to the back of the booster housing 1 and is located at a position corresponding to the booster push rod 2. Sound insulation cotton rings 303 are provided on the front and rear sides of the booster housing 1 and on the outsides of the vacuum valve 301 and the vacuum one-way valve 302. A sealing ring 304 made of silicone is provided on the front and rear sides of the booster housing 1 and on the outside of the booster push rod 2.
[0030] Specifically, the sound insulation component 3 is used to soundproof the booster housing 1, and the brake cylinder push rod 202 drives the booster push rod 2 to move in the booster housing 1, and then the booster push rod 2 drives the air chamber diaphragm 102 to perform the boosting work. A compression spring is installed inside the compression sleeve 201. When the booster push rod 2 and the vacuum valve 301 are pushed forward, the booster push rod 2 continues to be pushed, and the brake fluid in the master cylinder flows into the brake wheel cylinder at a certain pressure. The vacuum valve 301 also moves forward, driving the brake cylinder push rod 202 to push. During the activity, the vacuum check valve 302 and the vacuum valve 301 are protected by the sound insulation cotton ring 303 and the sealing ring 304 respectively, reducing the activity range of the vacuum check valve 302 and the vacuum valve 301, thereby reducing the noise generated by the activity and improving the use effect.
[0031] Finally, see Figure 1 A buffer assembly 4 is provided inside the booster housing 1 and at a position corresponding to the booster push rod 2;
[0032] The buffer assembly 4 is used to buffer the booster push rod 2. The specific structure of the buffer assembly 4 is as follows:
[0033] The buffer assembly 4 includes a buffer frame 401, a buffer column 402, a buffer spring 403, a buffer plate 404, a pull ring 405 and a connecting spring 406. The buffer frame 401 is fixedly connected to the inside of the booster housing 1 and is located on the outside of the booster push rod 2. The buffer frame 401 is fixedly connected to the inside and around the booster push rod 2 with buffer columns 402. The front and rear sides of the outsides of the four groups of buffer columns 402 are sleeved with buffer springs 403. Buffer plates 404 are fixedly connected to the outside of the booster push rod 2 and at positions corresponding to the buffer springs 403. Pull rings 405 are provided between the booster housing 1 and the several buffer plates 404. Connecting springs 406 are provided inside the several pull rings 405. The connection method of the several buffer plates 404 and the buffer columns 402 is sliding connection.
[0034] Specifically, the buffering effect of the booster push rod 2 is improved by the buffer assembly 4, so as to avoid the booster push rod 2 from colliding with the booster housing 1 and generating noise when moving. The movement of the booster push rod 2 drives the buffer plate 404 to move on the buffer column 402, and the buffer frame 401 supports the buffer column 402, and then squeezes the buffer spring 403 through the buffer plate 404. At the same time, the buffer plate 404 pulls the pull ring 405, and then the booster push rod 2 is buffered by the connecting spring 406 and the buffer spring 403, so as to avoid the booster push rod 2 from colliding with the booster housing 1 and generating noise.
[0035] In this embodiment, the implementation scenario is specifically as follows: in actual use, the brake cylinder push rod 202 is first used to drive the booster push rod 2 to move in the booster housing 1, and then the booster push rod 2 drives the air chamber diaphragm 102 to perform assisting work. A compression spring is installed inside the compression sleeve 201. When the booster push rod 2 is pushed forward, the booster push rod 2 continues to be pushed. The brake fluid in the master cylinder flows into the brake wheel cylinder at a certain pressure, thereby driving the brake cylinder push rod 202 to push. A compression spring is installed inside the compression sleeve 201. The control force thereof is used to push the booster push rod 2 forward. The booster push rod 2 is continued to be pushed to move. During the activity, the air chamber diaphragm 102 can be moved through multiple The non-Newtonian fluid inside the hose 101 collides with the inner wall of the booster housing 1, reducing the wear between the air chamber diaphragm 102 and the booster housing 1, and further reducing the noise inside the booster housing 1, thereby improving the use effect of the vacuum booster. At this time, the force of the booster push rod 2 is the sum of the pedal force and the thrust of the air chamber reaction plate, which makes the pressure output by the brake master cylinder increase exponentially to achieve boosting work. At this time, the buffer component 4 has a buffering effect on the booster push rod 2, and the sound insulation component 3 mutes the volume generated when the booster push rod 2 is active. Compared with the existing low-noise vacuum booster components, the utility model can improve the overall practicality of low-noise vacuum booster components through design.
[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low-noise vacuum booster component, comprising a booster housing (1), characterized in that: A booster push rod (2) is slidably connected to the center of the booster housing (1), a sound insulation component (3) is provided on the front and rear sides of the booster housing (1) and at positions corresponding to the booster push rod (2), and a buffer component (4) is provided inside the booster housing (1) and at positions corresponding to the booster push rod (2); The sound insulation component (3) is used to soundproof the interior of the booster housing (1); The buffer assembly (4) is used to buffer the booster push rod (2).
2. A low-noise vacuum booster component according to claim 1, characterized in that: The sound insulation component (3) comprises a vacuum valve (301), a vacuum one-way valve (302), a sound insulation cotton ring (303) and a sealing ring (304); the vacuum valve (301) is fixedly connected to the front of the booster housing (1) and is located at a position corresponding to the booster push rod (2).
3. A low-noise vacuum booster component according to claim 2, characterized in that: A vacuum check valve (302) is fixedly connected to the back of the booster housing (1) and located at a position corresponding to the booster push rod (2); sound insulation cotton rings (303) are provided on the front and rear sides of the booster housing (1) and located outside the vacuum valve (301) and the vacuum check valve (302); and a sealing ring (304) made of silicone is sleeved on the front and rear sides of the booster housing (1) and located outside the booster push rod (2).
4. A low-noise vacuum booster component according to claim 1, characterized in that: A compression sleeve (201) is provided on the front of the booster push rod (2), a brake cylinder push rod (202) is provided on the back of the booster push rod (2), a multi-way hose (101) is fixedly connected at the center of the booster housing (1) and located on the outside of the booster push rod (2), an air chamber diaphragm (102) is provided inside the booster housing (1) and located on a side close to the compression sleeve (201), and an air valve (103) is provided inside the booster housing (1) and located on a side close to the brake cylinder push rod (202).
5. A low-noise vacuum booster component according to claim 1, characterized in that: The buffer assembly (4) comprises a buffer frame (401), a buffer column (402), a buffer spring (403), a buffer plate (404), a pull ring (405) and a connecting spring (406); the buffer frame (401) is fixedly connected to the inside of the booster housing (1) and is located outside the booster push rod (2).
6. A low-noise vacuum booster component according to claim 5, characterized in that: Buffer columns (402) are fixedly connected inside the buffer frame (401) and around the booster push rod (2); buffer springs (403) are sleeved on the front and rear sides of the outer sides of the four groups of buffer columns (402); and buffer plates (404) are fixedly connected on the outer side of the booster push rod (2) and at positions corresponding to the plurality of buffer springs (403).
7. A low-noise vacuum booster component according to claim 6, characterized in that: Pull rings (405) are provided between the booster housing (1) and the plurality of buffer plates (404), connection springs (406) are provided inside the plurality of pull rings (405), and the connection modes of the plurality of buffer plates (404) and the buffer columns (402) are respectively sliding connections.