CN217145953U - Vacuum booster - Google Patents
Vacuum booster Download PDFInfo
- Publication number
- CN217145953U CN217145953U CN202221194082.4U CN202221194082U CN217145953U CN 217145953 U CN217145953 U CN 217145953U CN 202221194082 U CN202221194082 U CN 202221194082U CN 217145953 U CN217145953 U CN 217145953U
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- Prior art keywords
- push rod
- power piston
- vacuum booster
- sliding block
- vacuum
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Abstract
The utility model discloses a vacuum booster, which comprises a front shell, wherein the middle part of the front shell is provided with an annular bulge, and the front end of the front shell is provided with a vacuum pipe joint and a mounting screw for connecting a brake master cylinder; the annular protrusion is sleeved with a reinforcing rib plate, the reinforcing rib plate is provided with a first mounting hole and a second mounting hole, the vacuum pipe joint is mounted in the first mounting hole, and the mounting screw is mounted in the second mounting hole. The utility model discloses in, the effort that receives on vacuum pipe joint and the mounting screw can be transmitted for deep floor bears most effort, thereby reduces the deflection that the procapsid produced in the use, with the life who improves the procapsid, thereby improves vacuum booster's life.
Description
Technical Field
The utility model relates to an automobile parts technical field, concretely relates to vacuum booster.
Background
A vacuum booster that is a component that increases the force that a driver exerts on a pedal using vacuum (negative pressure); the vacuum booster is arranged between the brake master cylinder and the brake pedal, and the vacuum is provided by the vacuum pump to realize boosting.
However, the connection part of the existing vacuum booster with the brake master cylinder and the vacuum pump is easy to deform, and the service life of the vacuum booster is short.
SUMMERY OF THE UTILITY MODEL
The aforesaid to prior art is not enough, the utility model provides a long service life's vacuum booster.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
provided is a vacuum booster, including:
the front shell, wherein the middle part of the front shell is provided with an annular bulge, and the front end of the front shell is provided with a vacuum pipe joint and a mounting screw for connecting a brake master cylinder;
and the reinforcing rib plate is sleeved on the annular bulge and provided with a first mounting hole and a second mounting hole, the vacuum pipe joint is mounted in the first mounting hole, and the mounting screw is mounted in the second mounting hole.
The beneficial effects of adopting the above technical scheme are: the effort that receives on vacuum pipe joint and the mounting screw can transmit for deep floor bears most effort, thereby reduces the deflection that the procapsid produced in the use, with the life who improves the procapsid, thereby improves vacuum booster's life.
Furthermore, a sealing gasket is arranged between the vacuum pipe joint and the front shell and used for preventing leakage between the vacuum pipe joint and the front shell, the front end face and the rear end face of each reinforcing rib plate are tightly attached to the front shell and the sealing gasket respectively, and the rear end face of each reinforcing rib plate is also tightly attached to the head of each mounting screw so as to ensure effective transmission of force.
Furthermore, a rear shell is arranged at the rear end of the front shell, power pistons are arranged in the front shell and the rear shell in a sliding mode, and first springs are arranged between the power pistons and the reinforcing rib plates;
the middle part of the power piston is provided with an output push rod, a first sliding block and an input push rod in sequence from front to back in a sliding manner, and the front end of the input push rod is connected with the first sliding block.
The beneficial effects of adopting the above technical scheme are: the first spring is used for resetting the power piston, and when the input push rod is pushed, the input push rod pushes the first sliding block, and the first sliding block pushes the output push rod.
Furthermore, a diaphragm is arranged between the power piston and the front shell, a front cavity is formed between the diaphragm and the front shell, and a rear cavity is formed between the diaphragm and the rear shell; a channel for communicating the front cavity with the rear cavity is arranged on the power piston, a second sliding block for opening or closing the channel is arranged in the power piston in a sliding manner, and a gap is arranged between the first sliding block and the power piston; the input push rod is arranged in the second sliding block in a sliding mode, a baffle is arranged on the input push rod, and a second spring is arranged between the second sliding block and the baffle.
The beneficial effects of adopting the above technical scheme are: when the input push rod is not pushed, the front cavity is communicated with the rear cavity through a channel, and at the moment, the vacuum pipe joint is connected with a vacuum machine and vacuumizes the front cavity and the rear cavity through the vacuum machine;
after the input push rod is pushed, the baffle pushes the second sliding block through the second spring, so that the second sliding block blocks the channel, and the front cavity is not communicated with the rear cavity; the input push rod is continuously pushed, the second sliding block is blocked by the power piston, the first sliding block continuously slides forwards under the pushing of the input push rod, the first sliding block and the second sliding block are separated, air enters a gap between the first sliding block and the second sliding block at the moment and finally enters the rear cavity, the front cavity is still in a vacuum state at the moment, a pressure difference is formed between the front cavity and the rear cavity, and the diaphragm drives the power piston to push the output push rod under the action of the pressure difference.
Furthermore, the power piston is sleeved with a tray, one end of the tray is in contact with the diaphragm, and the tray supports the diaphragm and facilitates installation of the diaphragm.
Furthermore, a filtering ring is arranged between the inner side of the rear end of the power piston and the input push rod, so that impurities are prevented from entering and influencing the use of the vacuum booster.
Furthermore, a protective cover is sleeved at the rear end of the power piston, a first supporting ring and a second supporting ring are arranged between the protective cover and the power piston, the first supporting ring is positioned at the front end of the protective cover, and the second supporting ring is positioned at the rear end of the protective cover; the first support ring and the second support ring provide support for the shroud.
Further, a sealing ring clamping piece and a sealing washer are arranged between the power piston and the shell, the sealing washer is located between the sealing ring clamping piece and the protective cover, and the sealing ring clamping piece is used for clamping the sealing washer and is provided with the sealing washer to prevent the protective cover from leaking.
Further, a reaction disc is arranged in the power piston and located between the output push rod and the first sliding block.
Furthermore, the front end of the output push rod is in threaded connection with an adjusting screw, and the adjusting screw can adjust the screwing-in depth according to the piston of the brake master cylinder; the adjusting screw is in threaded connection with a locking nut which is used for fixing the adjusting screw on the output push rod, so that the adjusting screw is prevented from falling off; the rear end of the input push rod is in threaded connection with a push rod fork, and the input push rod is connected with the brake pedal through the push rod fork.
Drawings
FIG. 1 is a schematic view of a vacuum booster;
FIG. 2 is a schematic view of the installation of a reinforcing rib plate;
the vacuum pipe joint comprises 1, a second mounting hole, 2, a mounting screw, 3, a reinforcing rib plate, 4, a vacuum pipe joint, 5, a sealing gasket, 6, a first mounting hole, 7, an annular protrusion, 8, a front cavity, 9, a front shell, 10, a diaphragm, 11, a rear shell, 12, a rear cavity, 13, a tray, 14, a channel, 15, a power piston, 16, a gap, 17, a sealing ring clamping piece, 18, a sealing ring, 19, a first supporting ring, 20, a shield, 21, a second supporting ring, 22, a push rod fork, 23, a filtering ring, 24, a baffle, 25, an input push rod, 26, a second sliding block spring, 27, a second sliding block, 28, a first sliding block, 29, a reaction disk, 30, a first spring, 31, an output push rod, 32, an adjusting screw, 33 and a locking nut.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.
As shown in fig. 1 and 2, the present aspect provides a vacuum booster including:
a front shell 9, wherein the middle part of the front shell is provided with an annular bulge 7, and the front end of the front shell is provided with a vacuum pipe joint 4 and a mounting screw 2 for connecting a brake master cylinder;
and the reinforcing rib plate 3 is sleeved on the annular bulge 7 and is provided with a first mounting hole 6 and a second mounting hole 1, the vacuum pipe joint 4 is installed in the first mounting hole 6, and the mounting screw 2 is installed in the second mounting hole 1.
The acting force that receives on vacuum tube joint 4 and mounting screw 2 can be transmitted for deep floor 3 bears most of acting force, thereby reduces the deflection that procapsid 9 produced in the use, with the life who improves procapsid 9, thereby improves vacuum booster's life.
When the vacuum pipe joint is implemented, the sealing gasket 5 is preferably arranged between the vacuum pipe joint 4 and the front shell 9, the sealing gasket 5 is used for preventing leakage between the vacuum pipe joint 4 and the front shell 9, the front end face and the rear end face of the reinforcing rib plate 3 are tightly attached to the front shell 9 and the sealing gasket 5 respectively, and the rear end face of the reinforcing rib plate 3 is also tightly attached to the head of the mounting screw 2, so that effective transmission of force is ensured.
In an embodiment of the present invention, a rear housing 11 is disposed at the rear end of the front housing 9, a power piston 15 is slidably disposed in the front housing 9 and the rear housing 11, a first spring 30 is disposed between the power piston 15 and the reinforcing rib plate 3, and the first spring 30 is used for resetting the power piston 15;
the middle part of the power piston 15 is provided with an output push rod 31, a first sliding block 28 and an input push rod 25 in a sliding manner from front to back in sequence, and the front end of the input push rod 25 is connected with the first sliding block 28; when the input push rod 25 is pushed, the input push rod 25 pushes the first slide block 28, and the first slide block 28 pushes the output push rod 31.
During design, a diaphragm 10 is preferably arranged between the power piston 15 and the front shell 9, a front cavity 8 is formed between the diaphragm 10 and the front shell 9, and a rear cavity 12 is formed between the diaphragm 10 and the rear shell 11; the power piston 15 is provided with a channel 14 for communicating the front chamber 8 and the rear chamber 12, a second sliding block 27 for opening or closing the channel 14 is arranged in the power piston 15 in a sliding manner, and a gap 16 is arranged between the first sliding block 28 and the power piston 15; the input push rod 25 is slidably disposed in the second slide block 27, the stopper 24 is disposed on the input push rod 25, and the second spring 26 is disposed between the second slide block 27 and the stopper 24.
When the input push rod 25 is not pushed, the front cavity 8 is communicated with the rear cavity 12 through the channel 14, at the moment, the vacuum pipe joint 4 is connected with a vacuum machine, and the front cavity 8 and the rear cavity 12 are vacuumized through the vacuum machine;
after the input push rod 25 is pushed, the baffle plate 24 pushes a second sliding block 27 through a second spring 26, so that the second sliding block 27 blocks the channel 14, and the front chamber 8 is not communicated with the rear chamber 12; when the input push rod 25 is pushed continuously, the second slide block 27 is stopped by the power piston 15, and the first slide block 28 slides forwards under the pushing of the input push rod 25, so that the first slide block 28 is separated from the second slide block 27, at this time, air enters the gap 16 between the first slide block 28 and the second slide block 27 and finally enters the rear chamber 12, at this time, the front chamber 8 is still in a vacuum state, a pressure difference is formed between the front chamber 8 and the rear chamber 12, and under the action of the pressure difference, the diaphragm 10 drives the power piston 15 to push the output push rod 31.
When the diaphragm type air compressor is implemented, the tray 13 is sleeved on the preferable power piston 15, one end of the tray 13 is in contact with the diaphragm 10, and the tray 13 supports the diaphragm 10 and is favorable for mounting the diaphragm 10.
In an embodiment of the present invention, a filtering ring 23 is disposed between the inner side of the rear end of the power piston 15 and the input push rod 25 to prevent impurities from entering and affecting the use of the vacuum booster.
During design, a protective cover 20 is preferably sleeved at the rear end of the power piston 15, a first supporting ring 19 and a second supporting ring 21 are arranged between the protective cover 20 and the power piston 15, the first supporting ring 19 is located at the front end of the protective cover 20, and the second supporting ring 21 is located at the rear end of the protective cover 20; the first support ring 19 and the second support ring 21 provide support for the shroud 20.
In implementation, a sealing ring clamping piece 17 and a sealing ring 18 are preferably arranged between the power piston 15 and the housing, the sealing ring 18 is located between the sealing ring clamping piece 17 and the protecting cover 20, the sealing ring clamping piece 17 is used for clamping the sealing ring 18, and the sealing ring 18 is arranged to prevent leakage at the protecting cover 20.
In one embodiment of the present invention, a reaction disc 29 is provided within the power piston 15, and the reaction disc 29 is located between the output push rod 31 and the first slide block 28.
During design, the front end of the output push rod 31 is preferably in threaded connection with an adjusting screw 32, and the adjusting screw 32 can adjust the screwing depth according to the piston of the brake master cylinder; the adjusting screw 32 is in threaded connection with a locking nut 33, and the locking nut 33 is used for fixing the adjusting screw 32 on the output push rod 31 so as to prevent the adjusting screw 32 from falling off; the rear end of the input push rod 25 is connected with a push rod fork 22 through threads, and the input push rod 25 is connected with a brake pedal through the push rod fork 22.
In conclusion, the scheme bears most of acting force through the reinforcing rib plate 3, so that the deformation of the front shell 9 in the using process is reduced, the service life of the front shell 9 is prolonged, and the service life of the vacuum booster is prolonged.
Claims (10)
1. A vacuum booster, comprising:
a front shell (9), wherein the middle part of the front shell is provided with an annular bulge (7), and the front end of the front shell is provided with a vacuum pipe joint (4) and a mounting screw (2) for connecting a brake master cylinder;
the reinforcing rib plate (3) is sleeved on the annular bulge (7) and is provided with a first mounting hole (6) and a second mounting hole (1), the vacuum pipe joint (4) is installed in the first mounting hole (6), and the mounting screw (2) is installed in the second mounting hole (1).
2. A vacuum booster according to claim 1, wherein a sealing gasket (5) is arranged between the vacuum pipe joint (4) and the front housing (9), the front end surface and the rear end surface of the reinforcing rib plate (3) are respectively tightly attached to the front housing (9) and the sealing gasket (5), and the rear end surface of the reinforcing rib plate (3) is also tightly attached to the head of the mounting screw (2).
3. A vacuum booster as claimed in claim 1, wherein a rear housing (11) is arranged at the rear end of the front housing (9), a power piston (15) is slidably arranged in the front housing (9) and the rear housing (11), and a first spring (30) is arranged between the power piston (15) and the reinforcing rib plate (3);
the middle part of the power piston (15) is provided with an output push rod (31), a first sliding block (28) and an input push rod (25) in sequence from the front to the back in a sliding manner, and the front end of the input push rod (25) is connected with the first sliding block (28).
4. A vacuum booster as claimed in claim 3, characterized in that a diaphragm (10) is arranged between the power piston (15) and the front housing (9), a front chamber (8) being formed between the diaphragm (10) and the front housing (9), and a rear chamber (12) being formed between the diaphragm (10) and the rear housing (11); a channel (14) for communicating the front cavity (8) with the rear cavity (12) is arranged on the power piston (15), a second sliding block (27) for opening or closing the channel (14) is arranged in the power piston (15) in a sliding manner, and a gap (16) is arranged between the first sliding block (28) and the power piston (15); the input push rod (25) is arranged in the second sliding block (27) in a sliding mode, a baffle (24) is arranged on the input push rod (25), and a second spring (26) is arranged between the second sliding block (27) and the baffle (24).
5. Vacuum booster according to claim 4, characterized in that the power piston (15) is sleeved with a tray (13), one end of the tray (13) contacting the membrane (10).
6. Vacuum booster according to claim 4, characterized in that a filter ring (23) is arranged between the inner side of the rear end of the power piston (15) and the input push rod (25).
7. A vacuum booster as claimed in claim 3, characterized in that the rear end of the power piston (15) is sleeved with a shield (20), a first support ring (19) and a second support ring (21) are arranged between the shield (20) and the power piston (15), the first support ring (19) is arranged at the front end of the shield (20), and the second support ring (21) is arranged at the rear end of the shield (20).
8. A vacuum booster as claimed in claim 7, characterized in that a sealing gasket (18) and a sealing gasket (17) are arranged between the power piston (15) and the housing, and the sealing gasket (18) is located between the sealing gasket (17) and the shield (20).
9. Vacuum booster according to claim 3, characterized in that a reaction disc (29) is arranged in the power piston (15), and that the reaction disc (29) is located between the output push rod (31) and the first sliding block (28).
10. A vacuum booster as claimed in claim 3, characterized in that the front end of the output push rod (31) is threadedly connected with an adjusting screw (32), and the adjusting screw (32) is threadedly connected with a lock nut (33); the rear end of the input push rod (25) is in threaded connection with a push rod fork (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221194082.4U CN217145953U (en) | 2022-05-17 | 2022-05-17 | Vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221194082.4U CN217145953U (en) | 2022-05-17 | 2022-05-17 | Vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217145953U true CN217145953U (en) | 2022-08-09 |
Family
ID=82665048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221194082.4U Active CN217145953U (en) | 2022-05-17 | 2022-05-17 | Vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217145953U (en) |
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2022
- 2022-05-17 CN CN202221194082.4U patent/CN217145953U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |