CN206429478U - A kind of high-pressure cylinder sealing structure - Google Patents
A kind of high-pressure cylinder sealing structure Download PDFInfo
- Publication number
- CN206429478U CN206429478U CN201621458746.8U CN201621458746U CN206429478U CN 206429478 U CN206429478 U CN 206429478U CN 201621458746 U CN201621458746 U CN 201621458746U CN 206429478 U CN206429478 U CN 206429478U
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- CN
- China
- Prior art keywords
- piston
- cylinder barrel
- sealing
- sealing structure
- cylinder
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- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Include cylinder barrel the utility model discloses a kind of high-pressure cylinder sealing structure, cylinder barrel is hollow cylindrical structural, and the right-hand member spiral of cylinder barrel is provided with afterbody case, and the left end spiral of cylinder barrel is provided with front end housing；The internal sleeve of cylinder barrel is equipped with piston, and the centre position of piston is provided with piston rod, and piston rod is fixedly connected with the piston, and piston rod runs through front end housing；The inner sleeve of front end housing is equipped between intake valve, and intake valve and piston rod and is interference fitted；The top of front end housing is provided with the second air inlet, and the outer ring of piston is set with sealing ring, and sealing ring is interference fitted with inner wall of cylinder, and the top cylinder barrel positioned at piston right-hand member is provided with the first air inlet.High-pressure cylinder sealing structure by two sealing rings of conventional seals structure by being integrated into a sealing ring so that sealing structure and the contact area of casing wall increase, and improve the sealing effectiveness of sealing structure, the loss of sealing ring is also reduced simultaneously, it is simple in construction, it is easy to production, it is easy to promote.
Description
Technical field
The utility model is related to a kind of sealing structure, and in particular to a kind of high-pressure cylinder sealing structure.
Background technology
High-pressure cylinder internal pressure is higher, and bearing capacity is stronger, to improve its bearing capacity to improve its internal pressure
Power, this just brings difficulty to sealing structure, because gas molecule is smaller, and mobility is strong, so pressure is higher, seals more tired
It is difficult.
Generally sealed at present using rubber, by the space between the smaller cylinder body of the crimp of rubber and piston,
Prevent gas from passing through, but the sealing structure used at present is usually to set sealing ring respectively at the two ends of piston, is so made
The sealing effectiveness for obtaining sealing ring is bad, and is easily damaged.
The content of the invention
The utility model is usually to set sealing ring respectively at the two ends of piston to solve existing sealing structure, is so made
Sealing ring sealing effectiveness it is bad, and the technical problem that is easily damaged and a kind of high-pressure cylinder sealing structure is provided.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
The high-pressure cylinder sealing structure includes cylinder barrel, and cylinder barrel is hollow cylindrical structural, and the right-hand member spiral of cylinder barrel is installed
There is afterbody case, the left end spiral of cylinder barrel is provided with front end housing；The internal sleeve of cylinder barrel is equipped with piston, and the centre position of piston is provided with
Piston rod, piston rod is fixedly connected with the piston, and piston rod runs through front end housing；
The inner sleeve of front end housing is equipped between intake valve, and intake valve and piston rod and is interference fitted；The top of front end housing
Provided with the second air inlet, the outer ring of piston is set with sealing ring, and sealing ring is interference fitted with inner wall of cylinder, positioned at piston right-hand member
Top cylinder barrel is provided with the first air inlet.
Further, the sealing ring uses elastic cement body sealing ring.
Further, the reactive sealant circle outer ring is in O shapes.
Further, the outer cover of first air inlet and the second air inlet is equipped with filtering screen.
The utility model has the advantage that and actively had the technical effect that：High-pressure cylinder sealing structure is by by conventional seals knot
Two sealing rings of structure are integrated into a sealing ring so that sealing structure and the contact area of casing wall increase, and improve sealing structure
Sealing effectiveness, while also reduce the loss of sealing ring, structure is simple, is easy to production, it is easy to promote.
Brief description of the drawings
Fig. 1 is the high-pressure cylinder sealed structural representation that the utility model embodiment is provided；
In figure：1st, cylinder barrel；2nd, piston；3rd, sealing ring；4th, afterbody case；5th, the first air inlet；6th, intake valve；7th, second enters
Gas port；8th, piston rod；9th, front end housing.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows：
Structure of the present utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the high-pressure cylinder sealing structure that the utility model embodiment is provided, the high-pressure cylinder sealing structure bag
Cylinder barrel 1 is included, cylinder barrel 1 is hollow cylindrical structural, and the right-hand member spiral of cylinder barrel 1 is provided with afterbody case 4, the left end spiral shell of cylinder barrel 1
Rotation is provided with front end housing 9；The internal sleeve of cylinder barrel 1 is equipped with piston 2, and the centre position of piston 2 is provided with piston rod 8, and piston rod 8 is with living
Plug 2 is fixedly connected, and piston rod 8 runs through front end housing 9；
The inner sleeve of front end housing 9 is equipped between intake valve 6, and intake valve 6 and piston rod 8 and is interference fitted；Front end housing 9
Top is provided with the second air inlet 7, and the outer ring of piston 2 is set with sealing ring 3, and sealing ring 3 is interference fitted with the inwall of cylinder barrel 1, is located at
The top cylinder barrel 1 of the right-hand member of piston 2 is provided with the first air inlet 5.
Further, the sealing ring 3 uses elastic cement body sealing ring.
Further, the outer ring of reactive sealant circle 3 is in O shapes.
Further, the outer cover of the air inlet 7 of the first air inlet 5 and second is equipped with filtering screen.
Structure of the present utility model is further described with reference to operation principle.
The band piston 2 during motion of piston rod 8 is moved back and forth in cylinder barrel 1, realizes that air enters from first respectively
The air inlet 7 of gas port 5 and second passes in and out cylinder barrel 1, because the outer cover of piston 2 is equipped with sealing ring 3, by the way that conventional seals structure is whole
Synthesize a sealing ring 3 so that sealing structure and the contact area of casing wall increase, and improve the sealing effectiveness of sealing structure, together
When also reduce the loss of sealing ring 3, the air of the both sides of piston 2 is not connected.The front-end and back-end of cylinder barrel 1 are respectively screw installation
There are front end housing 9 and afterbody case 4, realize the sealing to cylinder barrel 1.
Claims (4)
1. a kind of high-pressure cylinder sealing structure, it is characterised in that the high-pressure cylinder sealing structure includes cylinder barrel, cylinder barrel is hollow
Cylindrical structural, the right-hand member spiral of cylinder barrel is provided with afterbody case, and the left end spiral of cylinder barrel is provided with front end housing；The inside of cylinder barrel
Piston is set with, the centre position of piston is provided with piston rod, and piston rod is fixedly connected with the piston, and piston rod runs through preceding cylinder
Lid；
The inner sleeve of front end housing is equipped between intake valve, and intake valve and piston rod and is interference fitted；The top of front end housing is provided with
Second air inlet, the outer ring of piston is set with sealing ring, and sealing ring is interference fitted with inner wall of cylinder, positioned at the top of piston right-hand member
Cylinder barrel is provided with the first air inlet.
2. high-pressure cylinder sealing structure as claimed in claim 1, it is characterised in that the sealing ring is close using elastic cement body
Seal.
3. high-pressure cylinder sealing structure as claimed in claim 1, it is characterised in that the sealing ring outer ring is in O shapes.
4. high-pressure cylinder sealing structure as claimed in claim 1, it is characterised in that first air inlet and the second air inlet
Outer cover be equipped with filtering screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458746.8U CN206429478U (en) | 2016-12-28 | 2016-12-28 | A kind of high-pressure cylinder sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458746.8U CN206429478U (en) | 2016-12-28 | 2016-12-28 | A kind of high-pressure cylinder sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206429478U true CN206429478U (en) | 2017-08-22 |
Family
ID=59584845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621458746.8U Expired - Fee Related CN206429478U (en) | 2016-12-28 | 2016-12-28 | A kind of high-pressure cylinder sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206429478U (en) |
-
2016
- 2016-12-28 CN CN201621458746.8U patent/CN206429478U/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: 20170822 Termination date: 20181228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |