CN202719225U - Reducing valve - Google Patents
Reducing valve Download PDFInfo
- Publication number
- CN202719225U CN202719225U CN 201220406302 CN201220406302U CN202719225U CN 202719225 U CN202719225 U CN 202719225U CN 201220406302 CN201220406302 CN 201220406302 CN 201220406302 U CN201220406302 U CN 201220406302U CN 202719225 U CN202719225 U CN 202719225U
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- valve body
- bellows
- 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 reducing valve which comprises a valve body, wherein a valve seat is arranged on the valve body, and a valve core is arranged in the valve body. The valve core is connected with a valve rod, a spring is sleeved on the valve rod, a membrane case is arranged on the valve rod, and the membrane case is connected with the spring. The membrane case comprises a lower membrane chamber, and a jack tray is arranged on the top portion of the lower membrane chamber and is arranged at the bottom of the spring. The lower membrane chamber is connected with a downstream cavity body of the valve body through a control pipeline. The reducing valve is variable in adjusting range, and can improve performance.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of reduction valve.
Background technique
Reduction valve is a kind of special arrangement of automatic reduction working pressure of pipeline, and it can be reduced to higher hydraulic pressure in the front pipeline of valve the required level of pipeline behind the valve.Because leak rate and the waste degree of water almost are directly proportional with the hydraulic pressure size of water supply system, so it has the effect that improves system conditions and potential water saving.
Existing reduction valve, the downstream pressure value is changeless.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of reduction valve, it can modulating valve after the size of force value.
For solving the problems of the technologies described above, the technical solution of the utility model reduction valve is:
Comprise valve body, be provided with valve seat on the valve body, be provided with spool in the valve body; Spool connects valve rod; Be arranged with spring on the valve rod; Be provided with bellows on the valve rod, bellows connects described spring.
Described bellows comprises lower film chamber, and the top of lower film chamber is provided with; Take over a business to be arranged at the bottom of described spring; Lower film chamber connects the downstream cavity of described valve body by the control pipeline.
Be provided with bellows in the described valve seat.
The technique effect that the utility model can reach is:
The utility model is spring external, and spring is changed convenient.
Regulation range of the present utility model is variable, and performance is improved.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the schematic representation of the utility model reduction valve.
Description of reference numerals among the figure:
1 is valve body, and 2 is valve seat,
3 is spool, and 4 is valve rod,
5 is spring, and 6 is bellows,
21 is bellows.
Embodiment
As shown in Figure 1, the utility model reduction valve comprises valve body 1, is provided with valve seat 2 on the valve body 1, is provided with spool 3 in the valve body 1; Spool 3 connects valve rod 4;
Be provided with bellows 21 in the valve seat 2;
Be arranged with spring 5 on the valve rod 4;
Be provided with bellows 6 on the valve rod 4; Bellows 6 comprises lower film chamber, and the top of lower film chamber is provided with; Take over a business to be arranged at the bottom of spring 5; Lower film chamber is by the downstream cavity of control pipeline connection valve body 1.
Working principle of the present utility model is as follows:
After the throttling of the upstream pressure P1 of fluid through spool 3, valve seat 2, become downstream pressure P2; It is indoor and act on that downstream pressure P2 is input to the lower film of bellows 6 through the control pipeline, the reaction force of the active force that produces and spring 5 balances each other, and determined the relative position of spool 3, valve seat 2, and pressure P 2 behind the control valve;
When downstream pressure P2 increased, the active force on downstream pressure P2 acts on also increased thereupon; At this moment, the active force of taking over a business is greater than the reaction force of spring 5, and the position that spool 3 is closed to valve seat 2 is until the reaction force of the active force of taking over a business and spring 5 balances each other;
At this moment, the circulation area between spool 3 and the valve seat 2 reduces, and it is large that flow resistance becomes, thereby make downstream pressure P2 reduce to setting value; In like manner, when downstream pressure P2 reduced, action direction was with above-mentioned opposite; When needs change the setting value of downstream pressure P2, can adjust adjusting nut.
Claims (3)
1. a reduction valve is characterized in that: comprise valve body, be provided with valve seat on the valve body, be provided with spool in the valve body; Spool connects valve rod; Be arranged with spring on the valve rod; Be provided with bellows on the valve rod, bellows connects described spring.
2. reduction valve according to claim 1, it is characterized in that: described bellows comprises lower film chamber, the top of lower film chamber is provided with; Take over a business to be arranged at the bottom of described spring; Lower film chamber connects the downstream cavity of described valve body by the control pipeline.
3. reduction valve according to claim 1 and 2 is characterized in that: be provided with bellows in the described valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220406302 CN202719225U (en) | 2012-08-16 | 2012-08-16 | Reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220406302 CN202719225U (en) | 2012-08-16 | 2012-08-16 | Reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719225U true CN202719225U (en) | 2013-02-06 |
Family
ID=47621049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220406302 Expired - Fee Related CN202719225U (en) | 2012-08-16 | 2012-08-16 | Reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202719225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696557A (en) * | 2013-12-04 | 2015-06-10 | 上海宇航系统工程研究所 | Pressure adjuster |
| CN109026874A (en) * | 2018-08-27 | 2018-12-18 | 上海中船三井造船柴油机有限公司 | A kind of pressure-difference valve for the independent hydraulically controlled oil system of low-speed diesel engine |
-
2012
- 2012-08-16 CN CN 201220406302 patent/CN202719225U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696557A (en) * | 2013-12-04 | 2015-06-10 | 上海宇航系统工程研究所 | Pressure adjuster |
| CN104696557B (en) * | 2013-12-04 | 2017-03-01 | 上海宇航系统工程研究所 | A kind of pressure regulator |
| CN109026874A (en) * | 2018-08-27 | 2018-12-18 | 上海中船三井造船柴油机有限公司 | A kind of pressure-difference valve for the independent hydraulically controlled oil system of low-speed diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: VOLDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Free format text: FORMER OWNER: ZHUO DANCHUN Effective date: 20140522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317600 TAIZHOU, ZHEJIANG PROVINCE TO: 223900 SUQIAN, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140522 Address after: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee after: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Address before: Taizhou City, Zhejiang province 317600 Yuhuan County Lu town Xuanmen industrial city Zhejiang world HVAC technology Co Ltd Patentee before: Zhuo Danchun |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170125 Address after: Jiangdong Road Jianye District of Nanjing City, Jiangsu province 210019 C Wanda Center No. 108 Room 501 Patentee after: Jiangsu Wo Hui Industrial Technology Group Limited Address before: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee before: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20180816 |