CN205423833U - Hump formula piston seal - Google Patents
Hump formula piston seal Download PDFInfo
- Publication number
- CN205423833U CN205423833U CN201620223746.3U CN201620223746U CN205423833U CN 205423833 U CN205423833 U CN 205423833U CN 201620223746 U CN201620223746 U CN 201620223746U CN 205423833 U CN205423833 U CN 205423833U
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- CN
- China
- Prior art keywords
- cylinder body
- hump formula
- formula sealing
- sealing washer
- plunger
- 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.)
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- Pistons, Piston Rings, And Cylinders (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a hump formula piston seal mainly comprises plunger, cylinder body, hump formula sealing washer, the plunger is coaxial with the cylinder body, the cylinder body is equipped with the slot, the ditch inslot at the cylinder body is installed to hump formula sealing washer. Hump formula sealing washer is the loop configuration, and the cross section inboard of hump formula sealing washer is equipped with seals oil level first and second two archs of an oil level, can avoid its lift -over of ditch inslot and distortion at the cylinder body, plays the mechanical seal effect, a side seal oil level first and oil level second and plunger contact and form oil storage department between two archs in the hump formula sealing washer, play sealedly and lubrication action, there is certain pressure in the bearing area in close contact with of hump formula sealing washer lateral surface and cylinder body. The beneficial effect of the utility model as follows: effectively reduce impurity and get into, avoid the dry friction, can improve product life and sealing reliability, have higher using value.
Description
Technical field
This utility model relates to a kind of sealing ring, particularly to a kind of hump formula piston packing.
Background technology
The common sealing ring of existing market is " O " type structure, for the sealing of other reciprocating structures such as piston.But should " O " RunddichtringO product hermeticity can and service life relatively low, this be due to: on the one hand " O " RunddichtringO is little with cylinder body contact surface, easily causes it to lose efficacy with the reciprocating motion rolling in the trench of piston；On the other hand " O " RunddichtringO has sealing surface at, easily brings foreign matter into and cause it to damage during reciprocating motion of the pistons, affects the overall performance of parts.A kind of hump formula piston packing of this utility model design, effectively reduces impurity and enters, avoids dry friction, can improve product service life and sealing reliability, have higher using value.
Summary of the invention
The purpose of this utility model is aiming at the deficiency that prior art exists, it is provided that a kind of hump formula piston packing, effectively reduces impurity and enters, avoids dry friction, can improve product service life and sealing reliability, have higher using value.
A kind of hump formula piston packing, its technical scheme is: being mainly made up of plunger, cylinder body, hump formula sealing ring, described plunger is coaxial with cylinder body, and described cylinder body is provided with groove, and described hump formula sealing ring is arranged in the groove of cylinder body；Described hump formula sealing ring is loop configuration, oil sealing vizard and two projections of oil sealing surface second it are provided with inside the cross section of hump formula sealing ring, oil sealing vizard and oil sealing surface second and plunger contact formed between two projections at oil storage inside described hump formula sealing ring, described hump formula sealing ring lateral surface is in close contact with the pressure-bearing surface of cylinder body and there is certain pressure.
Pump during plunger work, the oil sealing vizard inside plunger and hump formula sealing ring and the protruding close contact of oil sealing surface second two, hump formula sealing ring rolling and distortion in the groove of cylinder body can be avoided, effectively reduce the entrance of impurity.Preserve certain lubricating oil at oil storage between two projections of hump formula sealing ring, be prevented effectively from dry friction, play sealing and lubrication.
Accompanying drawing explanation
Accompanying drawing 1 is operating diagram of the present utility model.
Accompanying drawing 2 is the operating diagram of " O " RunddichtringO.
In upper figure: at plunger 1, cylinder body 2, groove 2.1, hump formula sealing ring 3, oil storage 4, oil sealing vizard 5, oil sealing surface second 6, pressure-bearing surface 7.
Detailed description of the invention
In conjunction with accompanying drawing 1, this utility model is further described:
This utility model is mainly made up of plunger 1, cylinder body 2, hump formula sealing ring 3, and described plunger 1 is coaxial with cylinder body 2, and described cylinder body 2 is provided with groove 2.1, and described hump formula sealing ring 3 is arranged in the groove 2.1 of cylinder body 2；Described hump formula sealing ring 3 is loop configuration, oil sealing vizard 5 and 6 two projections of oil sealing surface second it are provided with inside the cross section of hump formula sealing ring 3, inside described hump formula sealing ring 3, oil sealing vizard 5 and oil sealing surface second 6 contact and are formed between two projections at oil storage 4 with plunger 1, and described hump formula sealing ring 3 lateral surface is in close contact with the pressure-bearing surface 7 of cylinder body 2 and there is certain pressure.
Plunger 1 pumps when working, the oil sealing vizard 5 inside plunger 1 and hump formula sealing ring 3 and the protruding close contact of oil sealing surface second 6 two, plays mechanical seal effect；Compared with " O " RunddichtringO, there is sealing surface at two, hump formula sealing ring 3 rolling and distortion in the groove 2.1 of cylinder body 2 can be avoided, effectively reduce the entrance of impurity.At oil storage between 3 two projections of hump formula sealing ring, 4 preserve certain lubricating oil, are prevented effectively from dry friction, play sealing and lubrication, improve service life and the sealing reliability of product.
The invention has the beneficial effects as follows: effectively reduce impurity and enter, avoid dry friction, product service life and sealing reliability can be improved, have higher using value.
Claims (1)
1. a hump formula piston packing, it is characterized in that: main by plunger, cylinder body, hump formula sealing ring forms, described plunger is coaxial with cylinder body, described cylinder body is provided with groove, described hump formula sealing ring is arranged in the groove of cylinder body, described hump formula sealing ring is loop configuration, oil sealing vizard and two projections of oil sealing surface second it are provided with inside the cross section of hump formula sealing ring, oil sealing vizard and oil sealing surface second and plunger contact formed between two projections at oil storage inside described hump formula sealing ring, described hump formula sealing ring lateral surface is in close contact with the pressure-bearing surface of cylinder body and there is certain pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620223746.3U CN205423833U (en) | 2016-03-22 | 2016-03-22 | Hump formula piston seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620223746.3U CN205423833U (en) | 2016-03-22 | 2016-03-22 | Hump formula piston seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423833U true CN205423833U (en) | 2016-08-03 |
Family
ID=56548807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620223746.3U Active CN205423833U (en) | 2016-03-22 | 2016-03-22 | Hump formula piston seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735596A (en) * | 2020-08-10 | 2020-10-02 | 苏州东菱振动试验仪器有限公司 | Hydraulic vibration table |
-
2016
- 2016-03-22 CN CN201620223746.3U patent/CN205423833U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735596A (en) * | 2020-08-10 | 2020-10-02 | 苏州东菱振动试验仪器有限公司 | Hydraulic vibration table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 266000 No.39 Hua'an Road, pengjiatai community, Xiazhuang street, Chengyang District, Qingdao City, Shandong Province Patentee after: Qingdao Baofeng Shengfuhua Sealing Technology Co.,Ltd. Address before: No. 39 Hua'an Road, Chengyang District, Qingdao, Shandong Province, 266000 Patentee before: QINGDAO BAOFENG SHENGFUHUA SEALING PRODUCTS IMPORT & EXPORT Co.,Ltd. |