CN203926507U - The clutch booster with excellent sealing - Google Patents
The clutch booster with excellent sealing Download PDFInfo
- Publication number
- CN203926507U CN203926507U CN201420373374.3U CN201420373374U CN203926507U CN 203926507 U CN203926507 U CN 203926507U CN 201420373374 U CN201420373374 U CN 201420373374U CN 203926507 U CN203926507 U CN 203926507U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- piston
- clutch booster
- excellent sealing
- annular slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of clutch booster with excellent sealing, there is the pneumatic cylinder and the oil hydraulic cylinder that along same axis, connect, described piston is placed in pneumatic cylinder, front shroud at pneumatic cylinder is provided with the push rod being connected with piston, described front shroud is provided with the first ventilation barrel and the second ventilation barrel, the port of described the first ventilation barrel is provided with the first removable cover by spring part, at the port inner wall of the first ventilation barrel, is provided with male member, and restraint cover plate is inwardly movable; The port of described the second ventilation barrel is crossed spring part and is provided with the second removable cover, in the port of the second ventilation barrel, is provided with male member, and restraint cover plate is outwards movable; Described the second ventilation barrel connects rubber hose, at the inlet end of rubber hose, is provided with fixed end, and at fixed end, place is provided with air filter; The utility model improves sealability and the working life of whole dust-proof effect, piston, simultaneously easy to maintenance.
Description
Technical field
The utility model is mainly concerned with the clutch operation of vehicle transmission, especially relates to a kind of clutch booster with excellent sealing.
Background technique
At present, in the clutch operating system of heavy-duty car, motor bus and engineering machinery, because controlled clutch pedal is firmly heavy, can not cut off easily power in good time, easily gearshift, generally between clutch and clutch master cylinder, clutch booster is installed, the compressed gas source that uses vehicle provides power-assisted for clutch.
And on market for the piston head in booster cylinder, along with the prolongation of operating time, cause the wearing and tearing of seal ring, seal clearance can not get compensation, and sealing effect is declined, and causes gas leakage, and clutch booster was lost efficacy.
Model utility content
The purpose of this utility model is to provide a kind of clutch booster with excellent sealing, improves sealability and the working life of whole dust-proof effect, piston, simultaneously easy to maintenance.
The clutch booster with excellent sealing, there is the pneumatic cylinder and the oil hydraulic cylinder that along same axis, connect, described piston is placed in pneumatic cylinder, it is characterized in that: described piston comprises piston rod, end at piston rod forms piston head, at the outer wall of piston head, forming two sliver transvers sections is T-shaped circular groove, at the outboard end of circular groove, forms annular slot; In circular groove, be provided with Sealing, in annular slot, be provided with seal ring; Wherein, described circular groove is near annular slot one end lower than the other end, and the outboard end of described annular slot is lower than medial extremity.
The utility model is done further preferably, and described Sealing comprises fixed end, forms y-type seal ring on fixed end.
The utility model is done further preferably, and described fixed end and y-type seal ring are formed in one.
The utility model is done further preferably, and a side of described y-type seal ring is higher than another side.
The utility model is done further preferably, and described y-type seal ring is when placing, and a high side is placed on the high-end place of circular groove.
The utility model is done further preferably, and the cross-sectional width of described annular slot is d, and the cross-sectional diameter of described seal ring is D, wherein 1.2≤D:d≤1.5.
The utility model is done further preferably, and the front shroud on described pneumatic cylinder is provided with the vent communicating with ambient atmosphere, is provided with breather plug on vent.
Compared with prior art, the utility model has the advantage of:
1, in the utility model, piston and pneumatic cylinder inwall form slipper seal, the piston head on piston, and it is T-shaped circular groove that its outer wall forms two sliver transvers sections, at the outboard end formation annular slot of circular groove; Circular groove buckle Sealing by T-shaped, solves the stressed problem of its one side, because in the up and down process of piston, discontinuity can cause one side impaired, produces rapidly gas leakage; T-shaped circular groove is puted forth effort Sealing bottom for this reason, and both sides are stressed evenly, and in piston up-down process, both sides are stressed consistent, avoid lopsided wear too fast.
2, the Sealing in the utility model using process, the y-type seal ring on it, when described y-type seal ring is placed in annular slot, lip is outside, like this and between cylinder inner wall, form good sealing effect and performance; Skew in order to produce in the wearing and tearing of compensation sealing part and movement process is provided with ellipse seal ring in annular slot, has guaranteed sealing effect.So the piston in the utility model has good Follow-up seal performance.
3, in the utility model, the cross-sectional width of annular slot is d, and the cross-sectional diameter of described seal ring is D, wherein 1.2≤D:d≤1.5; Such setting, makes seal ring in annular slot, be subject to four sides extruding, forms evagination, and the tensioning shape forming in tension pressure, makes to form between seal ring and cylinder inner wall good sealing effect.
4, in the utility model, described circular groove is near annular slot one end lower than the other end, and the outboard end of described annular slot is lower than medial extremity; In piston up-down process, play protection Sealing and seal ring.
5, on the front shroud of the utility model on pneumatic cylinder, be provided with the vent communicating with ambient atmosphere; on vent, be provided with breather plug; raise the efficiency; effectively reduce and enter the Dust Capacity in cylinder, and be conducive to improve the inner dust of discharge, protection cylinder block and Sealing and inner element; breather plug separates with cylinder; independent mutually, it is independent of each other when breaking down or needing maintenance, replacing, easy to maintenance.
As from the foregoing, the utility model improves sealability and the working life of whole dust-proof effect, piston, simultaneously easy to maintenance.
In order further to explain the technical solution of the utility model, below by specific embodiment, the utility model is elaborated.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of piston in the utility model.
Fig. 3 is the structural representation of Sealing in the utility model.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the utility model relates to a kind of clutch booster with excellent sealing, there is the pneumatic cylinder 10 and the oil hydraulic cylinder 20 that along same axis, connect, described piston is placed in pneumatic cylinder 10, it is characterized in that: described piston comprises piston rod 1, in the end of piston rod 1, form piston head 2, at the outer wall of piston head 2, forming two sliver transvers sections is T-shaped circular groove 3, at the outboard end of circular groove 3, forms annular slot 4, in circular groove 3, be provided with Sealing 5, in annular slot 4, be provided with seal ring 6, wherein, described circular groove 3 near annular slot 4 one end 31 lower than the other end 32, the outboard end 41 of described annular slot 4 is lower than medial extremity 42, described Sealing 5 comprises fixed end 51, on fixed end 51, form y-type seal ring 52, described fixed end 51 and y-type seal ring 52 are formed in one, one side 11 of described y-type seal ring 52 is higher than another side 12, described y-type seal ring 52 is when placing, a high side 11 is placed on high-end (being above mentioned one end 31) of circular groove 3 and locates, the cross-sectional width of described annular slot 4 is d, the cross-sectional diameter of described seal ring 6 is D, 1.2≤D:d≤1.5 wherein, front shroud 30 on described pneumatic cylinder 10 is provided with the vent 40 communicating with ambient atmosphere, on vent 40, be provided with breather plug 50.
More than that the technological scheme that the utility model embodiment is provided is described in detail, having applied specific case herein sets forth the utility model embodiment's principle and mode of execution, above embodiment's explanation, is only applicable to the principle that the utility model embodiment is understood in help; , for one of ordinary skill in the art, according to the utility model embodiment, in embodiment and application area, all can change to some extent, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (7)
1. the clutch booster with excellent sealing, there is the pneumatic cylinder and the oil hydraulic cylinder that along same axis, connect, piston is placed in pneumatic cylinder, it is characterized in that: described piston comprises piston rod, end at piston rod forms piston head, at the outer wall of piston head, forming two sliver transvers sections is T-shaped circular groove, at the outboard end of circular groove, forms annular slot; In circular groove, be provided with Sealing, in annular slot, be provided with seal ring; Wherein, described circular groove is near annular slot one end lower than the other end, and the outboard end of described annular slot is lower than medial extremity.
2. the clutch booster with excellent sealing according to claim 1, is characterized in that: described Sealing comprises fixed end, forms y-type seal ring on fixed end.
3. the clutch booster with excellent sealing according to claim 2, is characterized in that: described fixed end and y-type seal ring are formed in one.
4. the clutch booster with excellent sealing according to claim 2, is characterized in that: a side of described y-type seal ring is higher than another side.
5. the clutch booster with excellent sealing according to claim 4, is characterized in that: described y-type seal ring is when placing, and a high side is placed on the high-end place of circular groove.
6. the clutch booster with excellent sealing according to claim 1, is characterized in that: the cross-sectional width of described annular slot is d, and the cross-sectional diameter of described seal ring is D, wherein 1.2≤D:d≤1.5.
7. the clutch booster with excellent sealing according to claim 1, is characterized in that: the front shroud on described pneumatic cylinder is provided with the vent communicating with ambient atmosphere, is provided with breather plug on vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373374.3U CN203926507U (en) | 2014-07-08 | 2014-07-08 | The clutch booster with excellent sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373374.3U CN203926507U (en) | 2014-07-08 | 2014-07-08 | The clutch booster with excellent sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926507U true CN203926507U (en) | 2014-11-05 |
Family
ID=51822321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420373374.3U Expired - Fee Related CN203926507U (en) | 2014-07-08 | 2014-07-08 | The clutch booster with excellent sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074887A (en) * | 2014-07-08 | 2014-10-01 | 陈斌 | Clutch booster high in sealing performance |
-
2014
- 2014-07-08 CN CN201420373374.3U patent/CN203926507U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074887A (en) * | 2014-07-08 | 2014-10-01 | 陈斌 | Clutch booster high in sealing performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |