CN209621893U - Clutch booster with plunger gas-liquid sealing structure - Google Patents
Clutch booster with plunger gas-liquid sealing structure Download PDFInfo
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- CN209621893U CN209621893U CN201920159572.2U CN201920159572U CN209621893U CN 209621893 U CN209621893 U CN 209621893U CN 201920159572 U CN201920159572 U CN 201920159572U CN 209621893 U CN209621893 U CN 209621893U
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- shaped ring
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- piston
- valve body
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Abstract
The utility model discloses a kind of clutch boosters with plunger gas-liquid sealing structure, it include valve body, atmospheric pressure cavity is equipped in the valve body, hydraulic cavities and the piston channel for penetrating through atmospheric pressure cavity and hydraulic cavities, sliding is equipped with piston shaft in the piston channel, it is characterized by: being equipped with gap between the piston shaft and piston channel, the gap forms respiration channel, and the pressurized seal Y-shaped ring of corresponding atmospheric pressure cavity and the hydraulic packing Y-shaped ring of corresponding hydraulic cavities are equipped in piston channel, piston shaft guide sleeve is equipped between pressurized seal Y-shaped ring and hydraulic packing Y-shaped ring, exhaust passage is additionally provided on the valve body, respiration channel between pressurized seal Y-shaped ring and hydraulic packing Y-shaped ring is connected to the valve body external world by exhaust passage.The utility model sealing effect is good, wears small, long service life.
Description
Technical field
The utility model relates to a kind of improvement of clutch booster invention more particularly to a kind of sealings of band plunger gas-liquid
The improvement of the clutch booster of structure is invented.
Background technique
Existing clutch booster during releasing clutch, control oil cylinder hydraulic power can it is a certain instantaneously be negative value,
If gas-liquid seal structure cannot prevent gas from entering hydraulic cavities well, it will lead to air from respiratory cavity and enter brake fluid, make
It is not thorough at clutch separation, clutch friction pad wear aggravation or the problems such as ablation, and because brake fluid is mixed into air
Caused hydraulic shock can seriously reduce oil sealing Y-shaped ring service life.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of good airproof performance, mill
Damage the small clutch booster with plunger gas-liquid sealing structure.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that realize: this kind band plunger
The clutch booster of formula gas-liquid seal structure includes valve body, and atmospheric pressure cavity, hydraulic cavities and perforation air pressure are equipped in the valve body
The piston channel of chamber and hydraulic cavities, the interior sliding of the piston channel are equipped with piston shaft, it is characterised in that: the piston shaft and piston
Gap is equipped between channel, which forms respiration channel, and the pressurized seal Y-shaped ring of corresponding atmospheric pressure cavity is equipped in piston channel
With the hydraulic packing Y-shaped ring of corresponding hydraulic cavities, piston shaft guide sleeve is equipped between pressurized seal Y-shaped ring and hydraulic packing Y-shaped ring,
Exhaust passage is additionally provided on the valve body, the respiration channel between pressurized seal Y-shaped ring and hydraulic packing Y-shaped ring and valve body are extraneous
It is connected to by exhaust passage.
The inner lip and outer lip of the pressurized seal Y-shaped ring are equipped with wave shape groove, and storage in wave shape groove
Lubricating grease.
The inner lip of the hydraulic packing Y-shaped ring is equipped with wave shape groove, and storing lubricating grease in wave shape groove.
Respiratory cavity is equipped in piston channel between the pressurized seal Y-shaped ring and hydraulic packing Y-shaped ring, respiratory cavity is to set
The annular groove on piston channel inner wall is set, annular groove is connected to exhaust passage.
The exhaust passage is diagonally disposed, and the annular groove is equipped with the guide groove radially extended, and guide groove and exhaust passage connect
It is logical.
The utility model has the beneficial effects that the improved clutch booster with plunger gas-liquid sealing structure, it can
It effectively prevent being mixed into the reduction hydraulic packing Y-shaped ring service life of hydraulic shock caused by air due to brake fluid；Pressurized seal Y type
Guide sleeve is set between circle and hydraulic packing Y-shaped ring, the inner lip of pressurized seal Y-shaped ring Yu hydraulic packing Y-shaped ring can be reduced
Because decrement it is uneven caused by wear.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the portion the A enlarged drawing of the utility model Fig. 1.
Fig. 3 is the radial cross-section of the utility model respiratory cavity.
Fig. 4 is the structure chart of the utility model pressurized seal Y-shaped ring.
Fig. 5 is the structure chart of the utility model hydraulic packing Y-shaped ring.
Specific embodiment
Attached drawing illustrates the structure of the utility model, further illustrates it in relation to details in conjunction with attached drawing below.The band column
The clutch booster of plug gas-liquid seal structure includes valve body 1, and atmospheric pressure cavity 2, hydraulic cavities 3 are equipped in the valve body 1 and are passed through
The piston channel 4 of logical atmospheric pressure cavity 2 and hydraulic cavities 3, sliding is equipped with piston shaft 5 in the piston channel 4, the piston shaft 5 with it is living
It fills in and is equipped with gap between channel 4, which forms respiration channel 6, i.e. 5 outer diameter of piston shaft is slightly less than 4 internal diameter of piston channel, and living
It fills in and is equipped with the pressurized seal Y-shaped ring 7 for corresponding to atmospheric pressure cavity 2 and the hydraulic packing Y-shaped ring 8 of corresponding hydraulic cavities 3 in channel 4, piston is logical
The mounting groove of Matching installation pressurized seal Y-shaped ring 7 Yu hydraulic packing Y-shaped ring 8, pressurized seal Y-shaped ring are respectively equipped on 4 inner wall of road
5 guide sleeve 9 of piston shaft is equipped between 7 and hydraulic packing Y-shaped ring 8, guide sleeve 9 is embedded on 4 inner wall of piston channel, guide sleeve 9
Setting can reduce the small beat of piston shaft 5, cause the inner lip of pressurized seal Y-shaped ring 7 and hydraulic packing Y-shaped ring 8 to compress
Amount is uneven, the risk of eccentric wear occurs, and exhaust passage 10, pressurized seal Y-shaped ring 7 and hydraulic packing Y are additionally provided on the valve body 1
Respiration channel 6 between type circle 8 is connected to the valve body external world by exhaust passage 10.Wherein respiration channel 6 and exhaust passage 10
Setting can be avoided and form negative pressuren zone in corresponding piston channel 4 between pressurized seal Y-shaped ring 7 and hydraulic packing Y-shaped ring 8, with
Part is caused to be entered in hydraulic cavities 3 under the action of negative pressure by the gas for entering negative pressuren zone in atmospheric pressure cavity 2.
The inner lip 71 of pressurized seal Y-shaped ring 7 nearby be arranged wave shape groove, can storing lubricating grease, reduce air pressure it is close
It seals Y-shaped ring inner lip 71 to wear, improves pressurized seal Y-shaped ring service life；Wave is arranged in the outer lip 72 of pressurized seal Y-shaped ring 7
Shape wave groove, can storing lubricating grease, play the role of auxiliary seal, while can prevent extraneous magazine from entering atmospheric pressure cavity 2.
Wave shape groove is nearby arranged in the inner lip 81 of hydraulic packing Y-shaped ring 8, can storing lubricating grease, prevent breathing logical
Gas enters inside hydraulic cavities in road 6, plays the role of auxiliary seal.
Respiratory cavity 41, breathing are equipped in piston channel 4 between the pressurized seal Y-shaped ring 7 and hydraulic packing Y-shaped ring 8
Chamber 41 is the annular groove being arranged on 4 inner wall of piston channel, and annular groove is linked together with respiration channel 6, and annular groove and exhaust are logical
Road 10 is connected to, and increases the gas reserves in respiration channel 6.
The exhaust passage 10 is diagonally disposed, and the annular groove is equipped with the guide groove 42 radially extended, guide groove 42 and exhaust
Channel 10 is connected to, and makes full use of limited space on valve body 1 that the arrangement of channel 10 is exhausted, and the setting of guide groove 42 can make to arrange
Gas channel 10 is staggered with hydraulic packing Y-shaped ring 8, when avoiding getting through exhaust passage 10, punches hydraulic packing Y-shaped ring 8, causes tight
It loses again, the program is realized by setting guide groove rather than expands annular groove, and the influence to body strength can be reduced.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection scope.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (5)
- Atmospheric pressure cavity, hydraulic is equipped with 1. the clutch booster with plunger gas-liquid sealing structure includes valve body, in the valve body Chamber and the piston channel for penetrating through atmospheric pressure cavity and hydraulic cavities, the interior sliding of the piston channel are equipped with piston shaft, it is characterised in that: described Gap is equipped between piston shaft and piston channel, which forms respiration channel, and corresponding atmospheric pressure cavity is equipped in piston channel The hydraulic packing Y-shaped ring of pressurized seal Y-shaped ring and corresponding hydraulic cavities, is equipped between pressurized seal Y-shaped ring and hydraulic packing Y-shaped ring Piston shaft guide sleeve is additionally provided with exhaust passage, the breathing between pressurized seal Y-shaped ring and hydraulic packing Y-shaped ring on the valve body Channel is connected to the valve body external world by exhaust passage.
- 2. the clutch booster as described in claim 1 with plunger gas-liquid sealing structure, it is characterised in that: the air pressure The inner lip and outer lip for sealing Y-shaped ring are equipped with wave shape groove, and storing lubricating grease in wave shape groove.
- 3. the clutch booster as described in claim 1 with plunger gas-liquid sealing structure, it is characterised in that: described hydraulic The inner lip for sealing Y-shaped ring is equipped with wave shape groove, and storing lubricating grease in wave shape groove.
- 4. the clutch booster as described in claim 1 with plunger gas-liquid sealing structure, it is characterised in that: the air pressure It seals and is equipped with respiratory cavity in the piston channel between Y-shaped ring and hydraulic packing Y-shaped ring, respiratory cavity is to be arranged in piston channel inner wall On annular groove, annular groove is connected to exhaust passage.
- 5. the clutch booster as claimed in claim 4 with plunger gas-liquid sealing structure, it is characterised in that: the exhaust Channel is diagonally disposed, and the annular groove is equipped with the guide groove radially extended, and guide groove is connected to exhaust passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920159572.2U CN209621893U (en) | 2019-01-30 | 2019-01-30 | Clutch booster with plunger gas-liquid sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920159572.2U CN209621893U (en) | 2019-01-30 | 2019-01-30 | Clutch booster with plunger gas-liquid sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209621893U true CN209621893U (en) | 2019-11-12 |
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ID=68452539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920159572.2U Active CN209621893U (en) | 2019-01-30 | 2019-01-30 | Clutch booster with plunger gas-liquid sealing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN209621893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764071A (en) * | 2019-01-30 | 2019-05-17 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster with plunger gas-liquid sealing structure |
-
2019
- 2019-01-30 CN CN201920159572.2U patent/CN209621893U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764071A (en) * | 2019-01-30 | 2019-05-17 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster with plunger gas-liquid sealing structure |
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