CN204175949U - A kind of liquid sealing device - Google Patents
A kind of liquid sealing device Download PDFInfo
- Publication number
- CN204175949U CN204175949U CN201420502194.0U CN201420502194U CN204175949U CN 204175949 U CN204175949 U CN 204175949U CN 201420502194 U CN201420502194 U CN 201420502194U CN 204175949 U CN204175949 U CN 204175949U
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- piston
- piston body
- piston top
- wall
- plane
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Abstract
The utility model relates to a kind of liquid sealing device, comprise cylinder sleeve, piston is provided with in cylinder sleeve, piston is made up of piston top and piston body, piston body is that one end arranges round-meshed cylindrical structure and this cylindrical structure outer wall is provided with boss, piston top is one end open and open end is the tube structure on inclined-plane, the outer wall of piston top and the outer wall of piston body boss and inboard wall of cylinder liner Spielpassung, together with piston top is bolted with piston body, closure gasket groove is formed between the opening end inclined-plane of piston top and the boss surface of piston body, in closure gasket groove, seal ring is set.The utility model piston top and piston body split design, processing technology is simple, and assembling is easily; Inclined design adds area of contact, and owing to being extrude after mounting, and be to pressurize gradually from the side and side direction produces pressure, do not produce extrusion-deformation at assembling initial stage O type circle, O RunddichtringO can not produce torsional deformation in pressurized process, ensure that sealing effect.
Description
Technical field
The utility model relates to a kind of liquid sealing device.
Background technique
Oil hydraulic cylinder is a kind of common liquid sealing device, in common piston and sealing structure of cylinder, the O RunddichtringO of piston crown can only be sealed by the elasticity of self, but in the enterprising luggage timing of general piston, because the gap of piston and cylinder body is very little, be easy to injured for the edge of O RunddichtringO, produce scaling phenomenon, not only have impact on sealing effect and working life, more seriously remain in the rubber burr in cylinder body, cause larger harm and mechanical failure sometimes.In addition, usual engine piston top and piston body are made of one formula, and such O RunddichtringO can only be applied arbitrarily in the closure gasket groove piston body from piston top, and namely assembling initial stage O type circle produces extrusion-deformation, reduces the working life of sealing effect and product.
Model utility content
The utility model provides the liquid sealing device of a kind of easy assembling, good sealing effect for solving in known technology the technical problem that exists
The technological scheme that the utility model is taked for the technical problem existed in solution known technology is: a kind of liquid sealing device, comprise cylinder sleeve, piston is provided with in described cylinder sleeve, described piston is made up of piston top and piston body, described piston body is that one end arranges round-meshed cylindrical structure and this cylindrical structure outer wall is provided with boss, described piston top be one end open and open end be inclined-plane tube structure, the outer wall of described piston top and the outer wall of piston body boss and inboard wall of cylinder liner Spielpassung, together with described piston top is bolted with piston body, closure gasket groove is formed between the opening end inclined-plane of described piston top and the boss surface of piston body, in described closure gasket groove, seal ring is set.
Angle between described inclined-plane and horizontal plane is 28 ° ~ 32 °.
Angle between described inclined-plane and horizontal plane is 30 °.
Described piston top and piston body are provided with packing ring at the surface of contact at the place of being bolted.
Described packing ring is circular sheet-like structures.
The advantage that the utility model has and good effect are: the Split bolt linkage structure of the utility model piston top and piston body, and processing technology is simple; When assembling, be first positioned on the boss of piston by seal ring, be then bolted piston top, O RunddichtringO completes assembling in non-stress situation, without assembling difficulty; Owing to being extrude after mounting, and be pressurize gradually from the side and side direction generation pressure, extrusion-deformation (not producing extrusion-deformation with the surface of contact that will seal) is not produced at assembling initial stage O type circle, ensure that O RunddichtringO can not produce torsional deformation in pressurized process, ensure that sealing effect, ensure that the reliability of assembling simultaneously; Inclined-plane increases sealing area, ensure that sealing effect, extends the working life of product; The setting of packing ring can, according to the requirement setting sealing load of user, make sealing load optimize adjustable.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In Fig. 1: 1. bolt, 2. packing ring, 3. piston top, 4. seal ring, 5. piston body, 6. cylinder sleeve.
Embodiment:
For understanding the technical solution of the utility model and implementation result further, Te Zi exemplifies following examples, and coordinates accompanying drawing to be described in detail as follows.
Refer to Fig. 1, a kind of liquid sealing device, comprise cylinder sleeve 6, piston is provided with in cylinder sleeve 6, piston is made up of piston top 3 and piston body 5, piston body 5 is round-meshed cylindrical structure and this cylindrical structure outer wall is provided with boss for one end is arranged, piston top 3 for one end open and open end be inclined-plane tube structure, the outer wall of piston top 3 and the outer wall of piston body 5 boss and cylinder sleeve 6 inwall Spielpassung, piston top 3 and piston body 5 are linked together by bolt 1, closure gasket groove is formed between the opening end inclined-plane of piston top 3 and the boss surface of piston body 5, seal ring 4 is set in closure gasket groove.Ramp structure can make can carry out effective sealing with larger surface of contact in use, because sealing area is large, compressive load per unit area is reduced, extends the working life of product.Angle between inclined-plane and horizontal plane is 28 ° ~ 32 °, and optimum selection is the angle between inclined-plane and horizontal plane is 30 °.
Piston top 3 and piston body 5 are provided with packing ring 2 at the surface of contact by bolt 1 joint, can, according to the requirement setting sealing load of user, sealing load be optimized adjustable.Packing ring 2 is circular sheet-like structures.
Working principle of the present utility model is, relies on Sealing generation resiliently deformable, produces pressure on the contact surface, ensure that contact is greater than the internal pressure of sealed medium, make it not leak.
The Split bolt linkage structure of the utility model piston top 3 and piston body 5, processing technology is simple; When assembling, first seal ring 4 being positioned on the boss of piston 5, being then bolted piston top 3, O RunddichtringO 4 and in non-stress situation, completing assembling, without assembling difficulty; Owing to being extrude after mounting, and be pressurize gradually from the side and side direction generation pressure, extrusion-deformation (not producing extrusion-deformation with the surface of contact that will seal) is not produced at assembling initial stage O type circle, ensure that O RunddichtringO can not produce torsional deformation in pressurized process, ensure that sealing effect, ensure that the reliability of assembling simultaneously.
Liquid sealing device of the present utility model, can be widely used on the various mechanical devices such as automobile, tractor, hydraulic equipment.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, and those of ordinary skill in the field should be appreciated that and still can modify to the embodiment of model utility or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the technology of the utility model request protection.
Claims (5)
1. a liquid sealing device, comprise cylinder sleeve (6), described cylinder sleeve is provided with piston in (6), described piston is made up of piston top (3) and piston body (5), it is characterized in that, described piston body (5) is round-meshed cylindrical structure and this cylindrical structure outer wall is provided with boss for one end is arranged, described piston top (3) for one end open and open end be inclined-plane tube structure, the outer wall of described piston top (3) and the outer wall of piston body (5) boss and cylinder sleeve (6) inwall Spielpassung, described piston top (3) and piston body (5) are linked together by bolt (1), closure gasket groove is formed between the opening end inclined-plane of described piston top (3) and the boss surface of piston body (5), seal ring (4) is set in described closure gasket groove.
2. a kind of liquid sealing device according to claim 1, is characterized in that, the angle between described inclined-plane and horizontal plane is 28 ° ~ 32 °.
3. a kind of liquid sealing device according to claim 3, is characterized in that, the angle between described inclined-plane and horizontal plane is 30 °.
4. a kind of liquid sealing device according to claim 1, is characterized in that, described piston top (3) and piston body (5) are provided with packing ring (2) at the surface of contact by bolt (1) joint.
5. a kind of liquid sealing device according to claim 1, is characterized in that, described packing ring (2) is circular sheet-like structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502194.0U CN204175949U (en) | 2014-09-02 | 2014-09-02 | A kind of liquid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502194.0U CN204175949U (en) | 2014-09-02 | 2014-09-02 | A kind of liquid sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175949U true CN204175949U (en) | 2015-02-25 |
Family
ID=52564760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420502194.0U Expired - Fee Related CN204175949U (en) | 2014-09-02 | 2014-09-02 | A kind of liquid sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175949U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337095A (en) * | 2015-11-24 | 2016-02-17 | 遵义精星航天电器有限责任公司 | High-reliability laterally sealed connector cap |
| CN109268498A (en) * | 2018-11-29 | 2019-01-25 | 湖南机油泵股份有限公司 | A kind of end face seal structure and the lubricating oil pump using the structure |
| CN111579337A (en) * | 2020-06-28 | 2020-08-25 | 西南石油大学 | High-temperature ultrahigh-pressure oil-gas fluid sample preparation device |
-
2014
- 2014-09-02 CN CN201420502194.0U patent/CN204175949U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337095A (en) * | 2015-11-24 | 2016-02-17 | 遵义精星航天电器有限责任公司 | High-reliability laterally sealed connector cap |
| CN109268498A (en) * | 2018-11-29 | 2019-01-25 | 湖南机油泵股份有限公司 | A kind of end face seal structure and the lubricating oil pump using the structure |
| CN111579337A (en) * | 2020-06-28 | 2020-08-25 | 西南石油大学 | High-temperature ultrahigh-pressure oil-gas fluid sample preparation device |
| CN111579337B (en) * | 2020-06-28 | 2022-06-21 | 西南石油大学 | High-temperature ultrahigh-pressure oil-gas fluid sample preparation device |
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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: 20150225 Termination date: 20160902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |