CN2205473Y - Low wear seal structure - Google Patents
Low wear seal structure Download PDFInfo
- Publication number
- CN2205473Y CN2205473Y CN 94230878 CN94230878U CN2205473Y CN 2205473 Y CN2205473 Y CN 2205473Y CN 94230878 CN94230878 CN 94230878 CN 94230878 U CN94230878 U CN 94230878U CN 2205473 Y CN2205473 Y CN 2205473Y
- Authority
- CN
- China
- Prior art keywords
- seal element
- seal
- movement parts
- utility
- metal workpiece
- 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
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Abstract
The utility model relates to a less abrasion seal structure which is used for sealing a fluid control mechanism. The utility model comprises a moving member, a seal element, and a casing. A component part made of nonmetallic elastic material is additionally arranged between the moving member and the seal element to separate the hardish moving member and softer seal element, the abrasion of the seal element is reduced, and thus seal life time is prolonged. The nonmetallic component part and the moving member are fitted tightly without relative movement. The utility model is not made with too much seal alteration for an existing product, having the advantages of no need of altering main technology and simple practice. The utility model is also suitable for seal reforming for equipment in active service.
Description
The utility model relates to a kind of sealing configuration, is used for the sealing of flow control mechanism.
In existing conventional seals structure, seal element commonly used prevents leaking of fluid, but because of seal element and movement parts are directly to contact, when movement parts is moved, between seal element and the movement parts relative movement is arranged.Usually, movement parts is that the higher material of hardness is made, and as metallic material, seal element is that flexible material is made, as rubber, plastics or asbestic blanket etc.Owing to have relative movement between seal element and the movement parts, the seal element wearing and tearing are very fast, are easy to cause seal failure.
The purpose of this utility model is to alleviate the abrasive action of movement parts to seal element, thus prolong sealing life-span, prevent to leak.
The utility model proposes a kind of low wearing and tearing sealing configuration, include movement parts, seal element, housing, between movement parts and seal element, increase the part that a non-metallic elastic material is made, separate harder movement parts and softer seal element.Non-metal workpiece tightly is enclosed within on the movement parts and moves with movement parts, and and seal element between keep relative movement.
When non-metal workpiece moved with movement parts, it was low to the degree of wear of seal element more than movement parts to the degree of wear of seal element.Thereby reach life-span of prolonging sealing, prevent the purpose of leaking.Can also reduce simultaneously the machining accuracy of movement parts, save manufacture cost.And little to existing product sealing change, need not change main technology, implement simply also to be applicable to seal reconstruction at labour equipment.
Below in conjunction with accompanying drawing, introduce the utility model in detail.
Accompanying drawing is the sectional drawing of low wearing and tearing sealing configuration.
Embodiment 1: as shown in the figure, between movement parts 1 and seal element 2, increase the part 4 that a non-metallic elastic material is made, non-metal workpiece 4 has at least a place to cooperate closely with movement parts 1, that is guarantees to seal between movement parts 1 and the seal element 2, and does not have relative movement.Because non-metal workpiece 4 is with the lower nonmetallic material of hardness, therefore can reduce the wearing and tearing of seal element 2, thereby prolong sealing life-span, prevent to leak.Non-metal workpiece 4 adopts rubber or plastics to make, and the elastic expansion sleeve that leans on rubber or plastics itself is on movement parts 1.
Embodiment 2: the non-metal workpiece 4 among the embodiment 1 adopts the method for glueing joint (bonding), is fixed on the movement parts 1.
Embodiment 3: methods such as the non-metal workpiece 4 employing sprayings among the embodiment 1 generate on the surface of movement parts 1.
Between movement parts 1 and the non-metal workpiece 4 can be affixed, drive fit, and adopts the method for other physical method, chemical method or physics and chemistry to be combined into one.
Claims (3)
1, a kind of low wearing and tearing sealing configuration, include movement parts (1), seal element (2), housing (3), it is characterized in that: between movement parts (1) and seal element (2), increase the non-metal workpiece (4) that an elastic material is made, separate harder movement parts (1) and softer seal element (2), the movement parts (1) that tightly is enclosed within non-metal workpiece (4) goes up with movement parts (1) motion, and and seal element (2) between keep relative movement.
2, low wearing and tearing sealing configuration as claimed in claim 1, it is characterized in that: have at least a place to cooperate closely between described non-metal workpiece (4) and the movement parts (1), that is guarantee to seal between non-metal workpiece (4) and the movement parts (1), and there is not relative movement.
3, low wearing and tearing sealing configuration as claimed in claim 1 is characterized in that: between described non-metal workpiece (4) and the movement parts (1) can be affixed, drive fit, and adopts the method for physical method, chemical method or physics and chemistry to be combined into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230878 CN2205473Y (en) | 1994-11-29 | 1994-11-29 | Low wear seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230878 CN2205473Y (en) | 1994-11-29 | 1994-11-29 | Low wear seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2205473Y true CN2205473Y (en) | 1995-08-16 |
Family
ID=33842877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94230878 Expired - Fee Related CN2205473Y (en) | 1994-11-29 | 1994-11-29 | Low wear seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2205473Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11896785B2 (en) | 2015-07-20 | 2024-02-13 | Roivios Limited | Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion |
-
1994
- 1994-11-29 CN CN 94230878 patent/CN2205473Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11896785B2 (en) | 2015-07-20 | 2024-02-13 | Roivios Limited | Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |