CN214420427U - Vacuum booster with output controlled by ball-head pull rod - Google Patents
Vacuum booster with output controlled by ball-head pull rod Download PDFInfo
- Publication number
- CN214420427U CN214420427U CN202023051534.7U CN202023051534U CN214420427U CN 214420427 U CN214420427 U CN 214420427U CN 202023051534 U CN202023051534 U CN 202023051534U CN 214420427 U CN214420427 U CN 214420427U
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- China
- Prior art keywords
- push rod
- rod
- output
- pull rod
- vacuum booster
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- Expired - Fee Related
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000010985 leather Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Braking Systems And Boosters (AREA)
Abstract
The utility model provides a vacuum booster of bulb pull rod control output, inside is including bulb pull rod control output combination: the ball-head pull rod combination consisting of the rear rod of the output push rod and the rear rod of the output push rod, the ball-head pull rod combination consisting of the rear rod of the output push rod and the air valve seat, the ball-head pull rod combination consisting of the air valve seat and the input push rod, and the ball-head pull rod combination consisting of the rear rod of the output push rod, the reaction disc and the piston inner body; the utility model discloses a vacuum booster of bulb pull rod control output, realize being connected with the bulb pull rod of input push rod and output push rod through the air valve seat, the bulb pull rod of connecting through the multistage realizes being connected of output push rod and input push rod to set up the output push rod front-end mast through the bulb pull rod in the output push rod, through a series of bulb pull rod control output, can adjust quick accuracy, raise the efficiency, realize the adjustment convenient and fast of push rod displacement, can improve vacuum booster's work efficiency, be favorable to practicing thrift manpower and materials, and the cost is saved.
Description
Technical Field
The utility model relates to a vacuum booster technical field, concretely relates to vacuum booster of bulb pull rod control output.
Background
The vacuum booster is a brake servo device in a light car brake system, a sedan car brake system and a mini car brake system, and is a key component in an automobile brake system. The working principle is that when a driver steps on a brake pedal, the thrust generated by different pressure differences of two working chambers in a vacuum booster is utilized to amplify the force of the brake pedal according to a designed proportion to push a piston of a brake master cylinder, brake fluid in the brake master cylinder is compressed to generate hydraulic pressure and is conveyed to a wheel brake to enable a brake shoe to be in contact with a wheel hub or a brake block to be in contact with a wheel brake disc, and then frictional resistance is generated to control the deceleration or braking of a vehicle.
The vacuum booster is a cavity with a larger diameter, the cavity is divided into two or more parts by a membrane, one part is connected with an engine air inlet pipe by a pipeline, and the other parts are communicated with the atmosphere. When vacuum booster produced the helping hand, the involucra was cut apart into a plurality of cavitys with the booster to guarantee the sealing performance of each cavity through the involucra, still must guarantee to remove simultaneously at the push rod in motion process involucra, make the inside formation of booster be vacuum on one side, be atmospheric pressure on one side, thereby utilize this kind of pressure differential to produce the helping hand. Therefore, the sealing performance of the membrane in the booster directly influences the braking effect and the braking sensitivity of the automobile and the labor intensity of a driver during braking.
Because the output push rod of the vacuum booster theoretically needs to be in zero clearance contact with the master cylinder piston. Therefore, the distance between the output push rod and the mounting surface of the master cylinder is strictly ensured. The vacuum booster in the market at present is assembled by waiting for the vacuum booster assembly, firstly measures the distance from the master cylinder to the installation surface (the length of the output push rod is made to be 2 mm in advance) and is generally smaller than that required by a drawing, and after calculating the difference between the master cylinder and the installation surface, the output push rod is arranged to be machined and turned by a lathe, and the turning number of the difference is the turning number. Until the drawing size is ensured. The structure has the defect of 1, and the vehicle is required to be assembled after each product is measured, so that the time and the labor are wasted. 2, the technical requirement on the lathes is high, and more or less lathes cannot be used. Otherwise the input push rod may be scrapped or reworked.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve foretell technical problem, provide a vacuum booster of bulb pull rod control output, through the combination that allies oneself with that ally oneself with that sets up the bulb pull rod, through bulb pull rod combination model control output, can adjust quick accuracy, raise the efficiency.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a vacuum booster of bulb pull rod control output, vacuum booster is inside including bulb pull rod control output combination: the ball-head pull rod combination consisting of the rear rod of the output push rod and the rear rod of the output push rod, the ball-head pull rod combination consisting of the rear rod of the output push rod and the air valve seat, the ball-head pull rod combination consisting of the air valve seat and the input push rod, and the ball-head pull rod combination consisting of the rear rod of the output push rod, the reaction disc and the piston inner body; the piston outer body wraps the output push rod rear rod and the air valve seat, a piston body return spring is sleeved outside the output push rod rear rod, one end of the piston body return spring is connected with the piston inner body, the other end of the piston body return spring is connected with the rear shell, and an output push rod gasket is arranged in the rear shell and sleeved on the output push rod rear rod; the air valve seat is provided with a first control valve leather cup at the contact position of the air valve seat and the input push rod, a second control valve leather cup opposite to the first control valve leather cup is arranged in the first control valve leather cup, a control valve spring is arranged between the first control valve leather cup and the second control valve leather cup and sleeved on the input push rod, and a first input push rod return spring and a second input push rod return spring are sleeved on the input push rod.
Preferably, the vacuum booster includes a rear housing and a front housing, and a first middle housing and a second middle housing disposed between the rear housing and the front housing.
Preferably, the rear shell is provided with a vacuum tube, and the rear shell and the front shell are both provided with fixing bolts.
Preferably, the first middle shell and the second middle shell are both provided with a diaphragm disc, and a diaphragm is arranged on the diaphragm disc.
Preferably, a dust cover is arranged at the front end of the front housing, a hexagonal nut is arranged at the outer end of the dust cover, and the hexagonal nut is sleeved on the input push rod.
Preferably, a foam filter I and a foam filter II are arranged inside the piston outer body in the dust cover; the input push rod sequentially penetrates through the first foam filter, the second foam filter, the dust cover and the hexagonal nut.
Preferably, a front housing sealing ring is arranged at the contact part of the piston outer body and the front housing.
Preferably, a control valve sealing ring is further arranged between the first control valve packing cup and the second control valve packing cup, and a control valve gasket is arranged between the control valve sealing ring and the first control valve packing cup.
Preferably, a spring seat is arranged at the rear part of the piston body inner body, and a piston body return spring is arranged between the spring seat and the rear shell and is sleeved on the rear rod of the output push rod.
Preferably, a piston body sealing ring is arranged at the contact position of the piston outer body and the middle shell II.
The utility model has the advantages that: the utility model discloses a vacuum booster of bulb pull rod control output, realize being connected with the bulb pull rod of input push rod and output push rod through the air valve seat, the bulb pull rod of connecting through the multistage realizes being connected of output push rod and input push rod, and set up the output push rod front-end mast through the bulb pull rod in the output push rod, through a series of bulb pull rod control output, can adjust quick accuracy, raise the efficiency, realize the adjustment convenient and fast of push rod displacement, can improve vacuum booster's work efficiency, be favorable to practicing thrift manpower and materials, further save time cost and economic cost, wide market value and application prospect have.
Drawings
Fig. 1 is the schematic view of the overall structure of the vacuum booster with the output controlled by the ball-head pull rod of the present invention.
In the figure: 1. a rear housing; 2. a front housing; 3. a first middle shell; 4. a second middle shell; 5. a membrane disc; 6. a membrane; 7. a vacuum tube; 8. a push rod front rod is output; 9. a rear push rod is output; 10. A reaction disc; 11. a piston inner body; 12. an air valve seat; 13. an input push rod; 14. fixing the bolt; 15. outputting a push rod gasket; 16. a piston body return spring; 17. a spring seat; 18. inputting a first push rod return spring; 19. inputting a push rod return spring II; 20. a front housing seal ring; 21. A control valve seal ring; 22. a foam filter I; 23. a second foam filter; 24. a control valve spring; 25. a first control valve leather cup; 26. a dust cover; 27. a piston body sealing ring; 28. a piston outer body; 29. a second control valve leather cup; 30. a hexagonal nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Shown by figure 1, a vacuum booster of bulb pull rod control output, the inside bulb pull rod control output combination that is included of vacuum booster: a ball-head pull rod combination consisting of an output push rod rear rod 9 and an output push rod rear rod 9, a ball-head pull rod combination consisting of the output push rod rear rod 9 and an air valve seat 12, a ball-head pull rod combination consisting of the air valve seat 12 and an input push rod 13, and a ball-head pull rod combination consisting of the output push rod rear rod 9, a reaction disk 10 and a piston inner body 11.
Furthermore, the piston outer body 28 is wrapped outside the output push rod rear rod 9 and the air valve seat 12, a piston body return spring 16 is sleeved outside the output push rod rear rod 9, one end of the piston body return spring 16 is connected with the piston inner body 11, the other end of the piston body return spring is connected with the rear shell 1, and an output push rod gasket 15 arranged in the rear shell 1 is sleeved on the output push rod rear rod 9.
Furthermore, a first control valve cup 25 is arranged at the contact position of the air valve seat 12 and the input push rod 13, a second control valve cup 29 opposite to the first control valve cup 25 is arranged in the first control valve cup 25, a control valve spring 24 is arranged between the first control valve cup 25 and the second control valve cup 29 and sleeved on the input push rod 13, and a first input push rod return spring 18 and a second input push rod return spring 19 are sleeved on the input push rod 13.
Further, the vacuum booster includes a rear case 1 and a front case 2, and a middle case one 3 and a middle case two 4 disposed between the rear case 1 and the front case 2.
Further, the vacuum tube 7 is provided on the rear case 1, and the fixing bolts 14 are provided on both the rear case 1 and the front case 2.
Furthermore, the middle shell 3 and the middle shell 4 are both provided with a diaphragm disc 5, and the diaphragm disc 5 is provided with a diaphragm 6.
Further, a dust cover 26 is provided at the front end of the front case 2, and a hexagonal nut 30 is provided at the outer end of the dust cover 26, and the hexagonal nut 30 is fitted over the input push rod 13.
Further, a first foam filter 22 and a second foam filter 23 are disposed inside the piston outer body 28 in the dust cover 26.
Further, the input push rod 13 passes through the foam filter one 22, the foam filter two 23, the dust cover 26 and the hexagon nut 30 in sequence.
Further, the front housing seal ring 20 is provided where the piston outer body 28 contacts the front housing 2.
Furthermore, a control valve sealing ring 21 is arranged between the first control valve cup 25 and the second control valve cup 29, and a control valve gasket is arranged between the control valve sealing ring 21 and the first control valve cup 25.
Furthermore, a spring seat 17 is arranged at the rear part of the piston inner body 11, and a piston body return spring 16 is arranged between the spring seat 17 and the rear shell 1 and is sleeved on the output push rod rear rod 9.
Furthermore, a piston body sealing ring 27 is arranged at the contact part of the piston outer body 28 and the middle shell II 4.
The utility model discloses a vacuum booster of bulb pull rod control output, realize being connected with the bulb pull rod of input push rod and output push rod through the air valve seat, the bulb pull rod of connecting through the multistage realizes being connected of output push rod and input push rod, and set up the output push rod front-end mast through the bulb pull rod in the output push rod, through a series of bulb pull rod control output, can adjust quick accuracy, raise the efficiency, realize the adjustment convenient and fast of push rod displacement, can improve vacuum booster's work efficiency, be favorable to practicing thrift manpower and materials, further save time cost and economic cost, wide market value and application prospect have.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a vacuum booster of bulb pull rod control output which characterized in that, vacuum booster is inside to be controlled the output combination including the bulb pull rod: a ball head pull rod combination consisting of an output push rod rear rod (9) and the output push rod rear rod (9), a ball head pull rod combination consisting of the output push rod rear rod (9) and an air valve seat (12), a ball head pull rod combination consisting of the air valve seat (12) and an input push rod (13), and a ball head pull rod combination consisting of the output push rod rear rod (9), a reaction disc (10) and a piston inner body (11);
the piston outer body (28) wraps the outer portions of the output push rod rear rod (9) and the air valve seat (12), a piston body return spring (16) is sleeved on the outer portion of the output push rod rear rod (9), one end of the piston body return spring (16) is connected with the piston inner body (11), the other end of the piston body return spring is connected with the rear shell (1), and an output push rod gasket (15) is arranged in the rear shell (1) and sleeved on the output push rod rear rod (9);
the air valve seat (12) is provided with a first control valve cup (25) at the contact position with the input push rod (13), a second control valve cup (29) opposite to the first control valve cup (25) is arranged inside the first control valve cup (25), a control valve spring (24) is arranged between the first control valve cup (25) and the second control valve cup (29) and sleeved on the input push rod (13), and a first input push rod return spring (18) and a second input push rod return spring (19) are sleeved on the input push rod (13).
2. A vacuum booster with a ball-pull rod controlled output according to claim 1, characterized in that the vacuum booster comprises a rear housing (1) and a front housing (2), and a first middle housing (3) and a second middle housing (4) arranged between the rear housing (1) and the front housing (2).
3. A vacuum booster with a ball-pull rod controlled output as claimed in claim 2, characterized in that the rear housing (1) is provided with a vacuum tube (7), and the rear housing (1) and the front housing (2) are provided with fixing bolts (14).
4. A vacuum booster with a ball-end pull rod control output according to claim 2, characterized in that the middle shell (3) and the middle shell (4) are both provided with a diaphragm disc (5), and the diaphragm disc (5) is provided with a diaphragm (6).
5. A vacuum booster with a ball-end pull rod control output according to claim 2, characterized in that the front end of the front housing (2) is provided with a dust cover (26), the outer end of the dust cover (26) is provided with a hexagonal nut (30), and the hexagonal nut (30) is sleeved on the input push rod (13).
6. A vacuum booster with output controlled by a ball-end pull rod according to claim 5, characterized in that a first foam filter (22) and a second foam filter (23) are arranged inside a piston outer body (28) in the dust cover (26);
the input push rod (13) sequentially penetrates through a first foam filter (22), a second foam filter (23), a dust cover (26) and a hexagonal nut (30).
7. A ball-tie-rod output controlled vacuum booster as claimed in claim 6, wherein the front housing seal (20) is provided at the contact of the piston outer body (28) with the front housing (2).
8. A vacuum booster with a ball head pull rod for controlling output according to claim 1, wherein a control valve sealing ring (21) is further arranged between the first control valve cup (25) and the second control valve cup (29), and a control valve gasket is arranged between the control valve sealing ring (21) and the first control valve cup (25).
9. A vacuum booster with a ball head pull rod for controlling output according to claim 1, characterized in that a spring seat (17) is provided at the rear part of the piston inner body (11), and a piston body return spring (16) is provided between the spring seat (17) and the rear housing (1) and is sleeved on the rear rod (9) of the output push rod.
10. A vacuum booster with a ball head pull rod control output according to claim 6, characterized in that a piston body sealing ring (27) is arranged at the contact part of the piston outer body (28) and the middle shell body II (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023051534.7U CN214420427U (en) | 2020-12-17 | 2020-12-17 | Vacuum booster with output controlled by ball-head pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023051534.7U CN214420427U (en) | 2020-12-17 | 2020-12-17 | Vacuum booster with output controlled by ball-head pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214420427U true CN214420427U (en) | 2021-10-19 |
Family
ID=78051993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023051534.7U Expired - Fee Related CN214420427U (en) | 2020-12-17 | 2020-12-17 | Vacuum booster with output controlled by ball-head pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214420427U (en) |
-
2020
- 2020-12-17 CN CN202023051534.7U patent/CN214420427U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211019 |