CN202484372U - Self-discharge type uniflow valve - Google Patents
Self-discharge type uniflow valve Download PDFInfo
- Publication number
- CN202484372U CN202484372U CN2012200501001U CN201220050100U CN202484372U CN 202484372 U CN202484372 U CN 202484372U CN 2012200501001 U CN2012200501001 U CN 2012200501001U CN 201220050100 U CN201220050100 U CN 201220050100U CN 202484372 U CN202484372 U CN 202484372U
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- China
- Prior art keywords
- valve
- cylindrical part
- valve body
- fluid
- spool
- 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 discloses a self-discharge type uniflow valve which comprises a valve body and a valve core. A fluid cavity penetrating through two ends of the valve body is arranged in the valve body, the valve core is slidingly arranged in the fluid cavity, and the valve core comprises a fluid inlet hole located at the head end of the valve core, a cylindrical portion located at the tail end of the valve core and a sealing portion which is located between the cylindrical portion and the fluid inlet hole and in sealing fit with the inner wall of the valve core. A lateral hole communicated with the fluid inlet hole is arranged on the lateral wall of the valve core, an oil inlet hole corresponding to the lateral hole is arranged on the inner wall of the valve body, a second fluid cavity is arranged in the cylindrical portion of the valve core, a second oil inlet hole communicated with the second fluid cavity is arranged between the cylindrical portion and a sealing portion, a check valve is arranged on the cylindrical portion, an oil discharge hole is arranged on the valve body, and the oil discharge hole is communicated with the fluid cavity when the valve core is in a closed state. The self-discharge type uniflow valve has the advantages of simultaneously having fluid unilateral control and oil discharge functions and bringing convenience in pump maintenance.
Description
Technical field
The utility model relates to a kind of self-releasing type one-way valve.
Background technique
In the existing pump one-way valve and oil drain valve all be produced by separation good after, adopt traditional screw-thread fit to connect, exist cooperate not tight; The drawback that working life is short, and the one-way valve of this cooperating structure and oil drain valve are in actual application, when carrying out the maintenance of pump; Need to strike the draining pin disconnected; Treat could pump be taken out after oil is to the greatest extent, complex operation, and be prone to pump is caused damage.
Summary of the invention
The purpose of the utility model is in order to overcome the shortcoming and defect that existing technology exists, and a kind of self-releasing type one-way valve that one-directional fluid control and oil draining function are combined and be convenient to safeguard is provided.
For realizing above-mentioned purpose; The technological scheme of the utility model is to comprise valve body and spool; Be provided with the fluid chamber that connects its two ends in the described valve body, described spool is arranged in the fluid chamber slippingly, and this spool comprises that the fluid at its head end gets into the hole, is cylindrical part and gets between the hole and the sealed department that cooperates with the spool inner wall sealing in cylindrical part and fluid at its tail end; The sidewall of said spool is provided with fluid and gets into the side opening that the hole is communicated with; The inwall of described valve body is provided with the oil inlet hole corresponding with side opening, is provided with second fluid chamber in the cylindrical part of described spool, and is provided with second oil inlet hole that is communicated with second fluid chamber between cylindrical part and the sealed department; Said cylindrical part is provided with one-way valve; Be provided with spring chamber between said valve interior wall and the cylindrical part, the outer end of corresponding spring chamber is provided with annular protrusion on the outer wall of described cylindrical part, is provided with the Returnning spring that two ends act on the annular protrusion of valve interior wall and cylindrical part respectively in this spring chamber; Described valve body is provided with the draining hole, and this draining hole is positioned under the closed condition at spool and is connected with fluid chamber.
Through this setting, this self-releasing type one-way valve is when proper functioning, and flowing medium promotes the spool compression reseting spring and moves; Thereby make side opening, oil inlet hole be communicated with, flowing medium gets into hole, side opening, oil inlet hole, second oil inlet hole and second fluid chamber from fluid successively and flows into, and realizes the one-way valve function through one-way valve; And when flowing medium stopped, spool resetted in action of reset spring, blocked the connection of side opening and oil inlet hole; And this moment; The flowing medium of fluid chamber through one-way valve from the draining hole draining, so the utility model combines one-directional fluid control and oil draining function, is convenient to the maintenance of the pump housing.
Further be provided be described valve body comprise main valve body with the import cylindrical shell that is arranged at the main valve body two ends respectively with export cylindrical shell.
Further being provided with is that described one-way valve is a rotary valve, and this rotary valve includes rotary valve seat and rotary valve lobe.
The outer end that further setting is a relative cylindrical part on the described spool is set with Locking bushing.
The advantage of the utility model: have one-directional fluid control and oil draining function simultaneously, be convenient to the maintenance of the pump housing.
Below in conjunction with Figure of description and embodiment the utility model is done further introduction.
Description of drawings
Fig. 1 the utility model flowing medium view that flows;
Fig. 2 the utility model draining view;
Embodiment
Through embodiment the utility model is carried out concrete description below; Only be used for the utility model is further specified; Can not be interpreted as the qualification to the utility model protection domain, the technician in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned model utility.
The embodiment of the utility model shown in Fig. 1-2; Comprise valve body 1 and spool 2, be provided with the fluid chamber 19 that connects its two ends in the described valve body 1, the described valve body 1 of present embodiment comprises main valve body 11 and is arranged at the import cylindrical shell 12 and outlet cylindrical shell 13 at main valve body two ends respectively; In addition; Described spool 2 is arranged in the fluid chamber 19 slippingly, and this spool comprises that the fluid at its head end gets into hole 21, is cylindrical part 22 and gets between the hole and the sealed department 23 that cooperates with the spool inner wall sealing in cylindrical part and fluid that at its tail end the sidewall of said spool 2 is provided with fluid and gets into the side opening 24 that the hole is communicated with; The inwall of described valve body 1 is provided with the oil inlet hole corresponding with side opening 14; Be provided with second fluid chamber 221 in the cylindrical part 22 of described spool 2, and be provided with second oil inlet hole 25 that is communicated with second fluid chamber 221 between cylindrical part 22 and the sealed department 23, said cylindrical part 22 is provided with one-way valve 26; This one-way valve 26 of present embodiment adopts rotary valve; This rotary valve includes rotary valve seat and rotary valve lobe, in addition, is provided with spring chamber 15 between said valve interior wall of present embodiment and the cylindrical part; The outer end of corresponding spring chamber is provided with annular protrusion 222 on the outer wall of described cylindrical part 22; Be provided with the Returnning spring 16 that two ends act on the annular protrusion of valve interior wall and cylindrical part respectively in this spring chamber 15, described valve body 1 is provided with draining hole 17, and this draining hole 17 is positioned under the closed condition at spool and is connected with fluid chamber 19.
The self-releasing type one-way valve of the utility model when proper functioning (referring to Fig. 1); Flowing medium promotes the spool compression reseting spring and moves, thereby makes side opening 24, oil inlet hole 14 be communicated with, and flowing medium gets into hole, side opening, oil inlet hole, second oil inlet hole and second fluid chamber from fluid successively and flows into; And through one-way valve realization one-way valve function; And when flowing medium stops (referring to Fig. 2), spool resets in action of reset spring, blocks the connection of side opening 24 and oil inlet hole 14; And this moment; The flowing medium of the fluid chamber 19 of this side that is connected with pump in the valve body 1 pass through one-way valve from the draining hole draining, so the utility model is controlled by one-directional fluid and oil draining function combines, and is convenient to the maintenance of the pump housing.
The outer end of relative cylindrical part is set with Locking bushing 27 on the described spool 2 of present embodiment.
Claims (4)
1. self-releasing type one-way valve; Comprise valve body and spool; It is characterized in that: be provided with the fluid chamber that connects its two ends in the described valve body, described spool is arranged in the fluid chamber slippingly, and this spool comprises that the fluid at its head end gets into the hole, is cylindrical part and gets between the hole and the sealed department that cooperates with the spool inner wall sealing in cylindrical part and fluid at its tail end; The sidewall of said spool is provided with fluid and gets into the side opening that the hole is communicated with; The inwall of described valve body is provided with the oil inlet hole corresponding with side opening, is provided with second fluid chamber in the cylindrical part of described spool, and is provided with second oil inlet hole that is communicated with second fluid chamber between cylindrical part and the sealed department; Said cylindrical part is provided with one-way valve; Be provided with spring chamber between said valve interior wall and the cylindrical part, the outer end of corresponding spring chamber is provided with annular protrusion on the outer wall of described cylindrical part, is provided with the Returnning spring that two ends act on the annular protrusion of valve interior wall and cylindrical part respectively in this spring chamber; Described valve body is provided with the draining hole, and this draining hole is positioned under the closed condition at spool and is connected with fluid chamber.
2. a kind of self-releasing type one-way valve according to claim 1 is characterized in that: described valve body comprises main valve body and is arranged at the import cylindrical shell and outlet cylindrical shell at main valve body two ends respectively.
3. a kind of self-releasing type one-way valve according to claim 1 and 2 is characterized in that: described one-way valve is a rotary valve, and this rotary valve includes rotary valve seat and rotary valve lobe.
4. a kind of self-releasing type one-way valve according to claim 3 is characterized in that: the outer end of relative cylindrical part is set with Locking bushing on the described spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200501001U CN202484372U (en) | 2012-02-16 | 2012-02-16 | Self-discharge type uniflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200501001U CN202484372U (en) | 2012-02-16 | 2012-02-16 | Self-discharge type uniflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484372U true CN202484372U (en) | 2012-10-10 |
Family
ID=46958795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200501001U Expired - Fee Related CN202484372U (en) | 2012-02-16 | 2012-02-16 | Self-discharge type uniflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836180A (en) * | 2018-08-15 | 2020-02-25 | 中国石油天然气股份有限公司 | Valve and pump assembly with same |
-
2012
- 2012-02-16 CN CN2012200501001U patent/CN202484372U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836180A (en) * | 2018-08-15 | 2020-02-25 | 中国石油天然气股份有限公司 | Valve and pump assembly with same |
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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: 20121010 Termination date: 20150216 |
|
| EXPY | Termination of patent right or utility model |