CN203223600U - Automatic-control emptying safety valve - Google Patents
Automatic-control emptying safety valve Download PDFInfo
- Publication number
- CN203223600U CN203223600U CN 201320242473 CN201320242473U CN203223600U CN 203223600 U CN203223600 U CN 203223600U CN 201320242473 CN201320242473 CN 201320242473 CN 201320242473 U CN201320242473 U CN 201320242473U CN 203223600 U CN203223600 U CN 203223600U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spool
- valve element
- automatic
- 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 relates to an automatic-control emptying safety valve which comprises a valve body (1), a valve element (2), a reset spring (3) and a seal ring (4). The automatic-control emptying safety valve is characterized in that an air inlet (5) is formed in the side wall of the valve body (1), the air inlet (5) is communicated with the inner wall of the valve body (1), the reset spring (3) is arranged in the middle of the valve element, upward acting force is exerted by the reset spring (3) on the valve element (2), therefore, the bottom of the valve element abuts against a valve seat of the lower end of the valve body (1), and the valve element (2) can move up and down along an axis of the valve seat. Negative pressure produced when the emptying safety valve conducts emptying operation enables the valve element to move downward, and air enters a pipeline through the air inlet of the valve body. Liquid flowing reaches a balanced state, and the emptying operation is smoothly conducted.
Description
Technical field
The utility model relates to a kind of control valve, relates in particular to a kind of automatic control safe draining valve of pipeline liquid emptying operation.
Background technique
The safe draining valve that present existing long-tube trailer is used all is that an end arranges outside thread, be connected with the trailer end plug, the other end arranges internal thread, and is connected with valve, it has only safety vent and two functions of turnover gas, so also need open a hole usually as sewage draining exit on end plug.On the safe draining valve end plug of this structure two holes are arranged, not only processing is bothersome, and there is directivity in two holes, and sewage draining exit must be downwards, so after the end plug screw thread processes, must be connected to earlier on the gas cylinder, find out the center of gravity of gas cylinder by dynamic balancing, make a mark at end plug then, make sewage draining exit downward, thus, greatly reduce the work efficiency of end plug.When assemble with car simultaneously, end plug is corresponding one by one with gas cylinder, can not adorn mistake, otherwise does not just seal, or the sewage draining exit direction not under.In addition, traditional safe draining valve adopts the open type operation, and liquid free rate low (about about 70%) needs manual operation simultaneously, often has liquid to overflow.
The model utility content
The purpose of this utility model provides a kind of automatic control safe draining valve, overcomes the defective of traditional emptying operation, more meets the needs of operation.
The purpose of this utility model is achieved in that
A kind of automatic control safe draining valve, comprise valve body, spool, Returnning spring and seal ring, it is characterized in that: the sidewall of valve body offers inlet hole, inlet hole is communicated with the inwall of valve body, the spool middle part arranges Returnning spring, Returnning spring produces active force upwards to spool, thereby makes spool bottom and the valve seat of valve body lower end connect; Spool can move up and down along the valve seat axis.
Further, spool is arranged at valve body central authorities.
Compare with traditional emptying operation, the utlity model has following characteristics and special effect:
1. the negative pressure of emptying operation generation moves down spool, and air enters pipeline by the valve body inlet hole.At this moment the mobile state of equilibrium that reaches of liquid is carried out the emptying operation smoothly.
2. need not manual operation, liquid ne-leakage phenomenon, liquid free rate height (about about 95%).
Description of drawings
The structural representation of Fig. 1 the utility model embodiment's automatic control safe draining valve;
Wherein: 1-valve body, 2-spool, 3-Returnning spring, 4-seal ring, 5-inlet hole, 6-pipeline.
Embodiment
Concrete technological scheme below with reference to 1 couple of the utility model embodiment of accompanying drawing is elaborated.
As shown in Figure 1, among this embodiment, automatic control safe draining valve, comprise valve body 1, spool 2, Returnning spring 3 and seal ring 4, the sidewall of valve body 1 offers inlet hole 5, and inlet hole is communicated with the inwall of valve body 1, and the spool middle part arranges Returnning spring 3,3 pairs of spools of Returnning spring 2 produce active force upwards, thereby make spool bottom and the valve seat of valve body 1 lower end connect; Spool 2 can move up and down along the valve seat axis.
This safety valve is arranged on the liquid line, when the liquid in the liquid line needs emptying, external suction means is extracted liquid out from pipeline, meanwhile in the inner negative pressure that produces of pipeline, when negative pressure to the effect of spool during greater than the active force of Returnning spring, Returnning spring is compressed, spool moves down, extraneous gas is communicated with pipeline 6 by inlet hole 5, thereby makes the emptying operation carry out smoothly.
Spool 2 is arranged at valve body 1 central authorities, and valve body 1 main structure material is stainless steel.
Although in conjunction with the embodiments the utility model is described in detail; but those skilled in the art are with being to be understood that; the utility model is not limited only to specific embodiment; on the contrary; in the various corrections that do not exceed the application's spirit and essence, distortion and replacement all drop among the application's the protection domain.
Claims (2)
1. automatic control safe draining valve, comprise valve body (1), spool (2), Returnning spring (3) and seal ring (4), it is characterized in that: the sidewall of valve body (1) offers inlet hole (5), inlet hole (5) is communicated with the inwall of valve body (1), the spool middle part arranges Returnning spring (3), Returnning spring (3) produces active force upwards to spool (2), thereby makes spool bottom and the valve seat of valve body (1) lower end connect; Spool (2) can move up and down along the valve seat axis.
2. automatic control safe draining valve according to claim 1, it is characterized in that: spool (2) is arranged at valve body (1) central authorities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320242473 CN203223600U (en) | 2013-05-07 | 2013-05-07 | Automatic-control emptying safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320242473 CN203223600U (en) | 2013-05-07 | 2013-05-07 | Automatic-control emptying safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223600U true CN203223600U (en) | 2013-10-02 |
Family
ID=49250604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320242473 Expired - Fee Related CN203223600U (en) | 2013-05-07 | 2013-05-07 | Automatic-control emptying safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108514473A (en) * | 2018-05-10 | 2018-09-11 | 孙淼 | Device for ophthalmologic operation |
-
2013
- 2013-05-07 CN CN 201320242473 patent/CN203223600U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108514473A (en) * | 2018-05-10 | 2018-09-11 | 孙淼 | Device for ophthalmologic operation |
| CN108514473B (en) * | 2018-05-10 | 2021-06-15 | 张�杰 | Device for ophthalmic surgery |
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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: 20131002 Termination date: 20140507 |