CN203176462U - Over-voltage protective valve - Google Patents
Over-voltage protective valve Download PDFInfo
- Publication number
- CN203176462U CN203176462U CN 201320045231 CN201320045231U CN203176462U CN 203176462 U CN203176462 U CN 203176462U CN 201320045231 CN201320045231 CN 201320045231 CN 201320045231 U CN201320045231 U CN 201320045231U CN 203176462 U CN203176462 U CN 203176462U
- Authority
- CN
- China
- Prior art keywords
- outlet pipe
- protective valve
- spring
- spool
- valve core
- 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
Links
Images
Abstract
The utility model aims at providing an over-voltage protective valve in order to limit outlet water temperature and ensure that the outlet water temperature is not too high. The over-voltage protective valve comprises a valve body. A water inlet pipe and a water outlet pipe are arranged on the valve body, and an adjusting valve core for adjusting flow quantity is arranged in the water outlet pipe. The over-voltage protective valve is characterized in that a function chamber is formed in the lateral portion of the water outlet pipe, an expansion chamber, a spring, a pull rod and a protective valve core which are communicated with the water outlet pipe are arranged in the function chamber, one end of the protective valve core penetrates through the side wall of the water outlet pipe and stretches into the water outlet pipe, and the other end of the protective valve core penetrates through the top wall of the function chamber and stretches out of the function chamber. A rubber film is arranged on the side wall of one side of the expansion chamber, the pull rod is fixed in the function chamber through a rotating shaft, one end of the pull rod abuts against the rubber film, the other end of the pull rod abuts against the side wall of the protective valve core, and a concave pit which is matched with the pull rod is arranged on the side wall of the protective valve core. The spring is sleeved on the protective valve core, one end of the spring is connected with the water outlet pipe, and the other end of the spring is connected with a protruding part arranged on the side wall of the protective valve core.
Description
Technical field
The invention belongs to valve technology field, specially refer to a kind of overvoltage protection valve.
Background technique
Valve can be regulated the flow of water outlet, has purposes very widely.In some occasion, need the pressure of water outlet be limited, avoid discharge pressure too high and cause damaging miscellaneous part etc., will be applied to the overvoltage protection valve this moment, but traditional overvoltage protection valve cost is higher, be difficult to popularize.
Summary of the invention
The objective of the invention is to propose a kind of overvoltage protection valve, with the temperature of restriction water outlet, guarantee that water-exit temperature can be not too high.
Overvoltage protection valve of the present invention comprises valve body, described valve body is provided with intake pipe and outlet pipe, described outlet pipe is provided with the regulating spool of regulating flow, key is that the sidepiece of described outlet pipe is provided with a function chamber, be provided with the expansion chamber, spring, pull bar and the protection spool that communicate with outlet pipe in the described function chamber, one end of described protection spool passes the sidewall of outlet pipe and stretches in the outlet pipe, and the other end passes the roof in function chamber and stretches out outside the function chamber; One side sidewall of described expansion chamber is rubber membrane, and described pull bar is fixed in the function chamber by rotating shaft, and an end and the rubber membrane of pull bar offset, and the other end offsets with the sidewall of protection spool, and the sidewall of described protection spool is provided with the pit that cooperates with pull bar; Described spring is placed on the Protective valve core, and an end of spring links to each other with outlet pipe, and the other end protuberance set with protecting the spool sidewall links to each other.
In use; at first with pulling moving protection spool; make the protection spool overcome the pulling force of spring and along moving perpendicular to the direction of outlet pipe; thereby the end that makes pull bar snaps in the pit of protection spool sidewall just; unclamp hand this moment; because pull bar snaps in the pit, the elastic force of spring can't make the protection spool move, so outlet pipe is held open state.After the hydraulic pressure of outlet pipe raises; pressure in the expansion chamber also can increase; thereby the volume of expansion chamber is constantly expanded; the rubber membrane that drives the expansion chamber sidewall moves; thereby pushing drawing rod rotates around its rotating shaft, after the hydraulic pressure of outlet pipe reaches predetermined pressure (for example 1.5 barometric pressure), makes the end of pull bar deviate to protect the pit of spool sidewall just; protect spool to move to the outlet pipe direction under the pulling force effect of spring this moment, thereby close outlet pipe.
Overvoltage protection valve of the present invention arranges protection spool and expansion chamber by the outlet pipe place in conventional valves, can close outlet pipe automatically when discharge pressure is too high, have easily manufactured, cost is low, control reliable advantage, has good practicability.
Description of drawings
Fig. 1 is the structural representation (outlet pipe unlatching) of overvoltage protection valve of the present invention.
Fig. 2 is the structural representation (outlet pipe is closed) of overvoltage protection valve of the present invention.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, 2, the valve body 1 of the overvoltage protection valve of present embodiment is provided with intake pipe 2 and outlet pipe 3, described outlet pipe 3 is provided with the regulating spool 4 of regulating flow, key is that the sidepiece of described outlet pipe 3 is provided with a function chamber 5, be provided with pull bar 8 and the protection spool 9 of the expansion chamber 6 that communicates with outlet pipe 3, spring 7, " Z " shape in the described function chamber 5, one end of described protection spool 9 passes the sidewall of outlet pipe 3 and stretches in the outlet pipe 3, and the other end passes the roof in function chamber 5 and stretches out outside the function chamber 5; One side sidewall of described expansion chamber 6 is rubber membrane 10, described pull bar 8 is fixed in the function chamber 5 by rotating shaft 13, one end and the rubber membrane 10 of pull bar 8 offset, and the other end offsets with the sidewall of protection spool 9, and the sidewall of described protection spool 9 is provided with the pit 11 that cooperates with pull bar 8; Described spring 7 is placed on the protection spool 9, and an end of spring 7 links to each other with outlet pipe 3, and the other end protuberance 12 set with protecting spool 9 sidewalls links to each other.
As shown in Figure 1; in use; at first with pulling moving protection spool 9; make protection spool 9 overcome the pulling force of spring 7 and along moving perpendicular to the direction of outlet pipe 3; thereby the end that makes pull bar 8 snaps in the pit 11 of protection spool 9 sidewalls just, and unclamp hand this moment, because pull bar 8 snaps in the pit 11; the elastic force of spring 7 can't make protection spool 9 move, so outlet pipe 3 is held open state.
As shown in Figure 2; after the hydraulic pressure of outlet pipe 3 raises; pressure in the expansion chamber 6 also can increase; thereby the volume of expansion chamber 6 is constantly expanded; the rubber membrane 10 that drives expansion chamber 6 sidewalls moves; thereby pushing drawing rod 8 rotates around its rotating shaft; after the hydraulic pressure of outlet pipe 3 reaches predetermined pressure (for example 1.5 barometric pressure); just make the end of pull bar 8 deviate to protect the pit 11 of spool 9 sidewalls; protect spool 9 to move to outlet pipe 3 directions under the pulling force effect of spring 7 this moment, thereby close outlet pipe 3.
Claims (1)
1. overvoltage protection valve, comprise valve body, described valve body is provided with intake pipe and outlet pipe, described outlet pipe is provided with the regulating spool of regulating flow, the sidepiece that it is characterized in that described outlet pipe is provided with a function chamber, be provided with the expansion chamber, spring, pull bar and the protection spool that communicate with outlet pipe in the described function chamber, an end of described protection spool passes the sidewall of outlet pipe and stretches in the outlet pipe, and the other end passes the roof in function chamber and stretches out outside the function chamber; One side sidewall of described expansion chamber is rubber membrane, and described pull bar is fixed in the function chamber by rotating shaft, and an end and the rubber membrane of pull bar offset, and the other end offsets with the sidewall of protection spool, and the sidewall of described protection spool is provided with the pit that cooperates with pull bar; Described spring is placed on the Protective valve core, and an end of spring links to each other with outlet pipe, and the other end protuberance set with protecting the spool sidewall links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320045231 CN203176462U (en) | 2013-01-28 | 2013-01-28 | Over-voltage protective valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320045231 CN203176462U (en) | 2013-01-28 | 2013-01-28 | Over-voltage protective valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176462U true CN203176462U (en) | 2013-09-04 |
Family
ID=49073159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320045231 Expired - Fee Related CN203176462U (en) | 2013-01-28 | 2013-01-28 | Over-voltage protective valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090064A (en) * | 2013-01-28 | 2013-05-08 | 苏州宇东暖通技术有限公司 | Excessive pressure protecting valve |
-
2013
- 2013-01-28 CN CN 201320045231 patent/CN203176462U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090064A (en) * | 2013-01-28 | 2013-05-08 | 苏州宇东暖通技术有限公司 | Excessive pressure protecting valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2085572A3 (en) | Plunger lift system for well | |
| CN203516858U (en) | One-way valve | |
| CN102374325A (en) | Intelligent pressure-stabilizing stop-check valve | |
| CN204226809U (en) | A kind of stop valve structure | |
| CN203131122U (en) | Pneumatic one-way valve | |
| CN203176462U (en) | Over-voltage protective valve | |
| CN103090064A (en) | Excessive pressure protecting valve | |
| CN202284664U (en) | Stop type pressure stabilizing check valve | |
| CN203176466U (en) | Undervoltage protection valve | |
| CN203322342U (en) | Pneumatic single-seat regulating valve | |
| CN203176465U (en) | Pressure control valve | |
| CN203176517U (en) | Low-temperature protective valve | |
| CN103090066A (en) | Pressure controlling valve | |
| CN201827462U (en) | Check valve with sealing structure | |
| CN202561165U (en) | Safety pressure relief device of valve | |
| CN202719218U (en) | Flow-limiting check valve | |
| WO2012104574A3 (en) | Downhole pressure relief apparatus | |
| CN203176516U (en) | Overheating protective valve | |
| CN204692671U (en) | Industrial refrigeration right-angle type safety check | |
| CN202209460U (en) | Angle and direct-acting pressure relief valve | |
| CN204153255U (en) | Rock gas cutting type pressure governor | |
| CN201827461U (en) | Check valve | |
| CN204153291U (en) | A kind of valve of fast shut-off | |
| CN204062072U (en) | Low temperature Emergeny Cutoff Valves open in usual | |
| CN103075550A (en) | Under-voltage protective valve |
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: 20130904 Termination date: 20140128 |