CN201771836U - Novel pump housing sealing structure - Google Patents
Novel pump housing sealing structure Download PDFInfo
- Publication number
- CN201771836U CN201771836U CN2010202512069U CN201020251206U CN201771836U CN 201771836 U CN201771836 U CN 201771836U CN 2010202512069 U CN2010202512069 U CN 2010202512069U CN 201020251206 U CN201020251206 U CN 201020251206U CN 201771836 U CN201771836 U CN 201771836U
- Authority
- CN
- China
- Prior art keywords
- pump
- pump housing
- sealing
- seam allowance
- pump cover
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Gasket Seals (AREA)
Abstract
The utility model relates to a novel structure applied to the sealing of a pump housing. A novel pump housing sealing structure comprises a pump body, a pump cover and a thread fastening piece between the pump body and the pump cover, and is characterized in that a mother seam allowance is arranged at the opening part of the pump body, a matched seam allowance corresponding to the mother seam allowance is arranged on the pump cover, a seal groove is formed on the radial matching surface of the mother seam allowance at the opening part of the pump body and the matched seam allowance, and an O-shaped seal ring is arranged inside the seal groove. The utility model has the advantages that metal face sealing between the pump body and the pump cover eliminates the possible hidden dangers probably brought by the gasket deformation, and the variability of practical assembly has no effect on sealing elements when the novel structure is installed.
Description
Technical field
The utility model relates to a kind of new structure that is applied to the pump case sealing.
Background technique
On general water pump, for impeller is installed, the convenience of dismounting, all pump case is divided into the pump housing, two parts of pump cover, also brought the needs of pump case sealing immediately.Pump case sealing commonly used now is shown in accompanying drawing one, the pump housing 11, pump cover 12, gasket seal 13, threaded fastener 14 processes a female seam on the pump housing, process corresponding cooperation seam on the pump cover, on the axial locating surface of two seams, utilize a plain cushion to carry out axial seal, thereby reach the effect of housing seal.
This seal style has two shortcomings.One is because the compressibility of pad causes.In order to reach good sealing effect, what select for use usually is non-metallic gasket.General nonmetal sealing gasket all has certain decrement, and in the pump assembling and running of reality, the actual compression amount of gasket seal is to be difficult to estimate.This will influence the axial position of mechanical seal in the pump cover inner sealing chamber to a certain extent.Another shortcoming is to be brought by the threaded fastener between the pump housing pump cover, and shown in accompanying drawing one, usually fastening between the pump housing pump cover is by being distributed on the threaded fastener of gasket seal axial section periphery.In the assembly process of pump, because the priority of order is installed, and the factor that can not estimate of the scene of pretightening force, will certainly have influence on stressed, the distortion of the gasket seal that compresses by this threaded piece pretension sealing force.Thereby the use that the shadow sealing rings pad.
Summary of the invention:
The purpose of this utility model is to adopt the existing the problems referred to above of nonmetal gasket seal when solving prior art middle pump body, pump cover connection sealing, and a kind of new pump seal structure for casing is provided.The utility model designs a kind of new pump seal structure for casing, comprise the threaded fastener between the pump housing, pump cover, the pump housing and the pump cover, it is characterized in that: female seam that offers at pump housing mouth place, on pump cover, offer and the corresponding seam that cooperates of female seam, at female seam at pump housing mouth place with cooperate on the radial fit face of seam and offer seal groove, the O RunddichtringO is arranged in seal groove.The utility model has the advantages that to be the metal covering sealing between the pump housing, pump cover, eliminated the hidden danger that the pad distortion may bring.Install, the polytrope of practical set does not influence Sealing.
Description of drawings:
Fig. 1 is the prior art constructions schematic representation,
Fig. 2 is a structural representation of the present utility model,
Below in conjunction with accompanying drawing and construction embodiment the utility model is made detailed operation instruction.
Embodiment:
Comprise the threaded fastener 3 between the pump housing 1, pump cover 2, the pump housing and the pump cover among the figure, it is characterized in that: at the female seam 4 of offering of pump housing mouth place, on pump cover, offer and the corresponding seam 5 that cooperates of female seam, at female seam at pump housing mouth place with cooperate on the radial fit face of seam and offer seal groove 6, O RunddichtringO 7 is arranged in seal groove.
After using this sealing means, axial position is the metal covering sealing between the pump housing, pump cover, eliminated the hidden danger that the pad distortion may bring.
Claims (1)
1. new pump seal structure for casing, comprise the threaded fastener between the pump housing, pump cover, the pump housing and the pump cover, it is characterized in that: female seam that offers at pump housing mouth place, on pump cover, offer and the corresponding seam that cooperates of female seam, at female seam at pump housing mouth place with cooperate on the radial fit face of seam and offer seal groove, the O RunddichtringO is arranged in seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202512069U CN201771836U (en) | 2010-07-07 | 2010-07-07 | Novel pump housing sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202512069U CN201771836U (en) | 2010-07-07 | 2010-07-07 | Novel pump housing sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201771836U true CN201771836U (en) | 2011-03-23 |
Family
ID=43751682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202512069U Expired - Fee Related CN201771836U (en) | 2010-07-07 | 2010-07-07 | Novel pump housing sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201771836U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104884742A (en) * | 2012-12-17 | 2015-09-02 | 西门子公司 | Compact backup seal for a turbomachine housing |
| CN104990568A (en) * | 2015-07-21 | 2015-10-21 | 淄博休普电机电器有限公司 | Motor sensor shell |
| CN106930980A (en) * | 2017-05-12 | 2017-07-07 | 广西玉柴机器股份有限公司 | A kind of water pump |
-
2010
- 2010-07-07 CN CN2010202512069U patent/CN201771836U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104884742A (en) * | 2012-12-17 | 2015-09-02 | 西门子公司 | Compact backup seal for a turbomachine housing |
| CN104990568A (en) * | 2015-07-21 | 2015-10-21 | 淄博休普电机电器有限公司 | Motor sensor shell |
| CN106930980A (en) * | 2017-05-12 | 2017-07-07 | 广西玉柴机器股份有限公司 | A kind of water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20110707 |