CN202132532U - Zero leakage sluice valve - Google Patents
Zero leakage sluice valve Download PDFInfo
- Publication number
- CN202132532U CN202132532U CN201120244397U CN201120244397U CN202132532U CN 202132532 U CN202132532 U CN 202132532U CN 201120244397 U CN201120244397 U CN 201120244397U CN 201120244397 U CN201120244397 U CN 201120244397U CN 202132532 U CN202132532 U CN 202132532U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- bellows
- flashboard
- rod
- 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 zero leakage sluice valve, which comprises a valve body, a flashboard, a valve rod, a valve cover, a support and a valve rod operating mechanism. A valve seat is disposed on the valve body, the flashboard is arranged inside the valve seat in lifting movable mode, and the upper end of the flashboard is fixedly matched with the valve rod in linkage mode. A bellows is sleeved on the valve rod in axial linear motion, one end of the bellows is fixedly connected to the valve cover in sealing mode, and the other end of the bellows is welded onto a metal gasket in sealing mode. The metal gasket is connected onto the valve rod in sleeved mode and fixedly matched with the valve rod in sealing mode. The zero leakage sluice valve has the advantages that the valve rod and the valve cover have good sealing property.
Description
Technical field
The utility model relates to a kind of gate valve, specifically is meant a kind of zero-leakage gate valve.
Background technique
Gate valve is that main rising cut off the mobilization that is transferred medium on pipeline; Be widely used in industries such as central air-conditioner, chemical industry, generating, plumbing, oil, pipeline transportation; The structure of gate valve mainly includes mechanisms such as valve body, valve seat, flashboard, valve rod, pad, valve gap, filler, support, Stem Mut, handwheel, through rotating handwheel, and the forward and back of the screw thread through handwheel and valve rod; The valve plate that lifting or decline are connected with valve rod reaches the function of opening and closing.
Can produce relative movement between the gate valve rod of existing technology and the valve gap; Be sealed into motive sealing between them; Promptly produce to leak the duct, and the space is filled through modes such as pressurizations with filler herein, prevent that medium from leaking in their intersection of relative movement.This lean on packing compress, be out of shape the shortcoming that there is poor reliability in the anti-leaking method that stops up the space, i.e. the leakproof time is not lasting, must periodical repair could not leak temporary transient assurance a period of time.
Summary of the invention
The purpose of the utility model is in order to overcome the shortcoming and defect that existing technology exists, and provides a kind of valve stem seal property good zero-leakage gate valve.
For realizing above-mentioned purpose; The technological scheme of the utility model is to include valve body, flashboard, valve rod, valve gap, support and valve rod operating device, and described valve body is provided with valve seat, and described flashboard lifting is arranged in the valve seat versatilely; And the upper end and the valve rod of this flashboard fixedly are linked; Doing to be arranged with bellows on the valve rod of axial linear movement, an end of this bellows and valve gap fixed seal connection, the other end seal weld of bellows is connected to metallic shim; This metallic shim is socketed on the valve rod, and cooperates with the valve rod fixing seal.
Further being provided with is that described valve rod operating device includes the handwheel that is linked with valve rod.
The utility model has the advantages that through adopting bellows that valve rod and valve gap are carried out fixing seal, good airproof performance, and an end of bellows through the metallic shim sealing and fixing on valve rod, machining operation makes things convenient for, welding stability is good.
Below in conjunction with Figure of description and embodiment the utility model is done further introduction.
Description of drawings
Fig. 1 the utility model embodiment structural representation.
Embodiment
The embodiment of the utility model as shown in Figure 1 includes valve body 1, flashboard 2, valve rod 5, valve gap 3, support 7 and valve rod operating device, and this valve rod operating device of present embodiment comprises the handwheel 8 that is linked with valve rod 5; Described valve body 1 is provided with valve seat; Described flashboard 2 liftings are arranged in the valve seat versatilely, and the upper end of this flashboard 2 and valve rod 5 fixedly be linked, and on the valve rod of making axial linear movement 5, are arranged with bellows 6; One end of this bellows 6 and valve gap 3 fixed seal connections; The other end seal weld of bellows 6 is connected to metallic shim 9, and this metallic shim 9 is socketed on the valve rod 5, and cooperates with the valve rod fixing seal.
The foregoing description is to the specific descriptions of the utility model; 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 of related domain according to the content of above-mentioned model utility the utility model is made some nonessential improvement and adjustment all falls within the protection domain of the utility model.
Claims (2)
1. zero-leakage gate valve; Include valve body, flashboard, valve rod, valve gap, support and valve rod operating device, described valve body is provided with valve seat, and described flashboard lifting is arranged in the valve seat versatilely; And the upper end and the valve rod of this flashboard fixedly are linked; It is characterized in that: doing to be arranged with bellows on the valve rod of axial linear movement, an end of this bellows and valve gap fixed seal connection, the other end seal weld of bellows is connected to metallic shim; This metallic shim is socketed on the valve rod, and cooperates with the valve rod fixing seal.
2. a kind of zero-leakage gate valve according to claim 1 is characterized in that: described valve rod operating device includes the handwheel that is linked with valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120244397U CN202132532U (en) | 2011-07-12 | 2011-07-12 | Zero leakage sluice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120244397U CN202132532U (en) | 2011-07-12 | 2011-07-12 | Zero leakage sluice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132532U true CN202132532U (en) | 2012-02-01 |
Family
ID=45521299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120244397U Expired - Fee Related CN202132532U (en) | 2011-07-12 | 2011-07-12 | Zero leakage sluice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132532U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574147A (en) * | 2012-07-20 | 2014-02-12 | 杭州三花研究院有限公司 | Thermostatic valve and valve body assembly |
| CN106813009A (en) * | 2016-11-10 | 2017-06-09 | 俞钟晓 | The gate valve of function is blocked in the instruction of tool open/close states and leakage |
| CN109690160A (en) * | 2016-08-17 | 2019-04-26 | 卡梅伦技术有限公司 | Flexible valve rod bellows component |
-
2011
- 2011-07-12 CN CN201120244397U patent/CN202132532U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574147A (en) * | 2012-07-20 | 2014-02-12 | 杭州三花研究院有限公司 | Thermostatic valve and valve body assembly |
| CN109690160A (en) * | 2016-08-17 | 2019-04-26 | 卡梅伦技术有限公司 | Flexible valve rod bellows component |
| CN109690160B (en) * | 2016-08-17 | 2022-05-24 | 卡梅伦技术有限公司 | Flexible valve stem bellows assembly |
| CN106813009A (en) * | 2016-11-10 | 2017-06-09 | 俞钟晓 | The gate valve of function is blocked in the instruction of tool open/close states and leakage |
| CN106813009B (en) * | 2016-11-10 | 2018-12-18 | 奉化市中新阀门有限公司 | The gate valve of function is blocked in the instruction of tool open/close states and leakage |
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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: 20120201 Termination date: 20180712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |