CN203743543U - High-pressure safety valve - Google Patents
High-pressure safety valve Download PDFInfo
- Publication number
- CN203743543U CN203743543U CN201420028262.4U CN201420028262U CN203743543U CN 203743543 U CN203743543 U CN 203743543U CN 201420028262 U CN201420028262 U CN 201420028262U CN 203743543 U CN203743543 U CN 203743543U
- Authority
- CN
- China
- Prior art keywords
- push rod
- quarter butt
- pressure
- safety valve
- screw plug
- 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 high-pressure safety valve which comprises a valve body. A valve seat and a valve element are matched with each other and are sequentially arranged at the top end of the inside of the valve body, ejector rods are arranged on the other side, relative to the valve seat, of the valve element, the ejector rods comprise the first ejector rod and the second ejector rod, the diameter of the first ejector rod is larger than that of the second ejector rod, one end of the first ejector rod is fixedly connected with the valve element, one end of the second ejector rod is fixedly connected with the first ejector rod, the other end of the second ejector rod is connected with the tail end of the valve body in an abutted mode, the first ejector rod is sleeved with a first load spring, and a second load spring is arranged in the second ejector rod in a sleeved mode. The high-pressure safety valve is low in manufacturing cost, rated pressure of the high-pressure safety valve can be raised, and meanwhile the service life of the high-pressure safety valve is prolonged.
Description
Technical field
The utility model relates to a kind of safety valve, and more particularly, it relates to a kind of high-pressure safety valve.
Background technique
High-pressure safety valve is a kind of safety protection valve, it includes spool, valve seat and push rod, the cylindrical setting of push rod, in push rod, be arranged with spring loaded, push push rod by spring loaded, push rod extruding spool makes spool and valve seat directly in normally off, when the pressure medium in equipment or pipeline raises, while exceeding spring loaded specified value, automatically open, prevent that by discharge medium outside system in pipeline or equipment, pressure medium exceedes specified value, the common inside of prior art mesohigh safety valve only has a spring loaded is set, the anti-pressure ability of spring loaded has just determined the performance of this high-pressure safety valve, the security value (s) of the better high-pressure safety valve of spring loaded anti-pressure ability is just higher, in the field of some ultrahigh pressure, if only depend on single spring loaded to improve the performance of high-pressure safety valve, this spring loaded manufacturing process more complicated, and needed material is relatively difficult to find, directly make this high-pressure safety valve cost improve, and single spring loaded is easy to occur that modification is aging under long-term high pressure uses, high-voltage safety valve performance is declined along with use, shorten the working life of high-pressure safety valve.
Model utility content
The deficiency existing for prior art, the high-pressure safety valve that the purpose of this utility model is to provide a kind of low cost and can improves high-pressure safety valve rated pressure, the working life of simultaneously having improved this high-pressure safety valve.
For achieving the above object, the utility model provides following technological scheme: a kind of high-pressure safety valve, comprise valve body, in described valve body, top sets gradually the valve seat and the spool that cooperatively interact, described spool is provided with push rod with respect to the opposite side of valve seat, described push rod comprises the first push rod and the second push rod, described the first push rod diameter is greater than the second push rod diameter, described first push rod one end and spool are fixedly linked, described second push rod one end is fixedly connected with the first push rod, the other end of described the second push rod is conflicted and is connected with valve body end, on described the first push rod, be arranged with the first spring loaded, in described the second push rod, be arranged with the second spring loaded.
By adopting technique scheme, original push rod is set to the first push rod and second push rod of two different-diameter sizes, on described the first push rod, be arranged with the first spring loaded, on described the second push rod, be arranged with the second spring loaded, in the time being subject to highly pressurised liquid impact, two spring loadeds help spool extruding valve seat simultaneously, the rated pressure that they can bear is the anti-pressure ability sum of two spring loadeds, so without adopting some special materials to improve the anti-pressure ability of single spring loaded, requiring under identical rated pressure, two spring loadeds use conventional material still can reach the requirement of rated pressure, reduce cost of production, and under the environment of high pressure always, two spring loadeds are shared pressure jointly, reduce the fatigue loss in use of each spring loaded, improve to a certain extent the working life of this high-pressure safety valve.
The utility model is further set to: described valve body end is provided with pressure regulation screw plug, described pressure regulation screw plug one end extends to valve inner and conflicts and be connected with the second push rod, the described pressure regulation screw plug the other end is positioned at valve body outside, and described the second spring loaded is sheathed on the second push rod and between the first push rod and pressure regulation screw plug.
By adopting technique scheme, turn pressure regulation screw plug, described pressure regulation screw plug just can push the second spring loaded, after the second spring loaded compression, further step up the relation between spool and valve seat, realize the adjustable function of rated pressure of high-pressure safety valve, improved the practicability of high-pressure safety valve.
The utility model is further set to: described the second push rod comprises the first quarter butt and the second quarter butt that are separated from each other, described the first quarter butt is fixedly connected with the first push rod, described the second quarter butt is fixedly connected with pressure regulation screw plug, and the concentric setting of described the first quarter butt and the second quarter butt and the first quarter butt and the second quarter butt are gap and arrange.
By adopting technique scheme, described the second push rod is divided into two the first quarter butts that are separated from each other and the second quarter butt, facilitate the assembling of the second spring loaded, can the gap between the first quarter butt and the second quarter butt, insert, improve manufacturing efficiency.
The utility model is further set to: described the first quarter butt and the first push rod are wholely set, and described the second quarter butt and pressure regulation screw plug are wholely set.
By adopting technique scheme, the first quarter butt and the first push rod are wholely set, the second quarter butt and pressure regulation screw plug are wholely set, be easy to processing, reduce the program step of producing and assembling, and be wholely set the intensity that can improve these component.
The utility model is further set to: described pressure regulation screw plug is positioned at the outside one end of valve body and is fixedly installed dust cover, and described dust cover is provided with straight groove with respect to the other end that is connected a side with pressure regulation screw plug.
By adopting technique scheme, because high-pressure safety valve is accurate device, inner cooperation requires precision, if have sand and dust to enter to be easy to affect the sealing of this high-pressure safety valve, be provided with dust cover and can avoid this problem, and this dust cover is fixedly connected with pressure regulation screw plug and this dust cover on be provided with straight groove, in carrying out this high-pressure safety valve pressure regulation, without opening dust cover, use the adjustment means suitable with straight groove just can regulate, prevent because removing when dust cover regulates and allow dust enter the situation of valve inner.
Brief description of the drawings
Fig. 1 is the utility model high-pressure safety valve embodiment's structural representation.
Drawing reference numeral explanation:
1, valve seat; 2, valve body; 3, the first spring loaded; 4, the second spring loaded; 5, pressure regulation screw plug; 6, dust cover; 7, push rod; 71, the second push rod; 711, the second quarter butt; 712, the first quarter butt; 72, the first push rod; 8, spool.
Embodiment
With reference to Fig. 1, the utility model high-pressure safety valve embodiment is described further.
A kind of high-pressure safety valve, comprise valve body 2, the interior top of described valve body 2 sets gradually the valve seat 1 and the spool 8 that cooperatively interact, described spool 8 is provided with push rod 7 with respect to the opposite side of valve seat 1, described push rod 7 comprises the first push rod 72 and the second push rod 71, described the first push rod 72 diameters are greater than the second push rod 71 diameters, described first push rod 72 one end and spool 8 are fixedly linked, described second push rod 71 one end are fixedly connected with the first push rod 72, the other end of described the second push rod 71 is conflicted and is connected with valve body 2 ends, on described the first push rod 72, be arranged with the first spring loaded 3, in described the second push rod 71, be arranged with the second spring loaded 4.
By adopting technique scheme, original push rod 7 is set to the first push rod 72 and second push rod 71 of two different-diameter sizes, on described the first push rod 72, be arranged with the first spring loaded 3, on described the second push rod 71, be arranged with the second spring loaded 4, in the time being subject to highly pressurised liquid impact, two spring loadeds help spool 8 to push valve seat 1 simultaneously, the rated pressure that they can bear is the anti-pressure ability sum of two spring loadeds, so without adopting some special materials to improve the anti-pressure ability of single spring loaded, requiring under identical rated pressure, two spring loadeds use conventional material still can reach the requirement of rated pressure, reduce cost of production, and under the environment of high pressure always, two spring loadeds are shared pressure jointly, reduce the fatigue loss in use of each spring loaded, improve to a certain extent the working life of this high-pressure safety valve.
Described valve body 2 ends are provided with pressure regulation screw plug 5, described pressure regulation screw plug 5 one end extend to valve body 2 inside and conflict and be connected with the second push rod 71, described pressure regulation screw plug 5 the other ends are positioned at valve body 2 outsides, and described the second spring loaded 4 is sheathed on the second push rod 71 and between the first push rod 72 and pressure regulation screw plug 5.
By adopting technique scheme, turn pressure regulation screw plug 5, described pressure regulation screw plug 5 just can push the second spring loaded 4, after the second spring loaded 4 compressions, further step up the relation between spool 8 and valve seat 1, realize the adjustable function of rated pressure of high-pressure safety valve, improved the practicability of high-pressure safety valve.
Described the second push rod 71 comprises the first quarter butt 712 and the second quarter butt 711 that are separated from each other, described the first quarter butt 712 is fixedly connected with the first push rod 72, described the second quarter butt 711 is fixedly connected with pressure regulation screw plug 5, and described the first quarter butt 712 and the concentric setting of the second quarter butt 711 and the first quarter butt 712 and the second quarter butt 711 are gap and arrange.
By adopting technique scheme, described the second push rod 71 is divided into two the first quarter butts 712 that are separated from each other and the second quarter butt 711, facilitate the assembling of the second spring loaded 4, can the gap between the first quarter butt 712 and the second quarter butt 711, insert, improved manufacturing efficiency.
Described the first quarter butt 712 and the first push rod 72 are wholely set, and described the second quarter butt 711 and pressure regulation screw plug 5 are wholely set.
By adopting technique scheme, the first quarter butt 712 and the first push rod 72 are wholely set, the second quarter butt 711 and pressure regulation screw plug 5 are wholely set, be easy to processing, reduce the program step of producing and assembling, and be wholely set the intensity that can improve these component.
Described pressure regulation screw plug 5 is positioned at the outside one end of valve body 2 and is fixedly installed dust cover 6, and described dust cover 6 is provided with straight groove with respect to the other end that is connected a side with pressure regulation screw plug 5.
By adopting technique scheme, because high-pressure safety valve is accurate device, inner cooperation requires precision, if have sand and dust to enter to be easy to affect the sealing of this high-pressure safety valve, be provided with dust cover 6 and can avoid this problem, and this dust cover 6 is fixedly connected with pressure regulation screw plug 5 and this dust cover 6 on be provided with straight groove, in carrying out this high-pressure safety valve pressure regulation, without opening dust cover 6, use the adjustment means suitable with straight groove just can regulate, preventing because removing when dust cover 6 regulates allows dust enter the situation of valve body 2 inside.
Claims (5)
1. a high-pressure safety valve, comprise valve body, in described valve body, top sets gradually the valve seat and the spool that cooperatively interact, described spool is provided with push rod with respect to the opposite side of valve seat, it is characterized in that: described push rod comprises the first push rod and the second push rod, described the first push rod diameter is greater than the second push rod diameter, described first push rod one end and spool are fixedly linked, described second push rod one end is fixedly connected with the first push rod, the other end of described the second push rod is conflicted and is connected with valve body end, on described the first push rod, be arranged with the first spring loaded, in described the second push rod, be arranged with the second spring loaded.
2. high-pressure safety valve according to claim 1, it is characterized in that: described valve body end is provided with pressure regulation screw plug, described pressure regulation screw plug one end extends to valve inner and conflicts and be connected with the second push rod, the described pressure regulation screw plug the other end is positioned at valve body outside, and described the second spring loaded is sheathed on the second push rod and between the first push rod and pressure regulation screw plug.
3. high-pressure safety valve according to claim 2, it is characterized in that: described the second push rod comprises the first quarter butt and the second quarter butt that are separated from each other, described the first quarter butt is fixedly connected with the first push rod, described the second quarter butt is fixedly connected with pressure regulation screw plug, and the concentric setting of described the first quarter butt and the second quarter butt and the first quarter butt and the second quarter butt are gap and arrange.
4. high-pressure safety valve according to claim 3, is characterized in that: described the first quarter butt and the first push rod are wholely set, and described the second quarter butt and pressure regulation screw plug are wholely set.
5. according to the high-pressure safety valve described in any one in claim 2 or 3 or 4, it is characterized in that: described pressure regulation screw plug is positioned at the outside one end of valve body and is fixedly installed dust cover, and described dust cover is provided with straight groove with respect to the other end that is connected a side with pressure regulation screw plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028262.4U CN203743543U (en) | 2014-01-16 | 2014-01-16 | High-pressure safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028262.4U CN203743543U (en) | 2014-01-16 | 2014-01-16 | High-pressure safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743543U true CN203743543U (en) | 2014-07-30 |
Family
ID=51343344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420028262.4U Expired - Fee Related CN203743543U (en) | 2014-01-16 | 2014-01-16 | High-pressure safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743543U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087596A (en) * | 2017-11-23 | 2018-05-29 | 成都海申科技有限公司 | Jetting machine safety valve |
| CN108980421A (en) * | 2018-09-12 | 2018-12-11 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN112145764A (en) * | 2020-09-22 | 2020-12-29 | 黄广华 | Pressure relief joint applied to high-pressure cleaning machine |
-
2014
- 2014-01-16 CN CN201420028262.4U patent/CN203743543U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087596A (en) * | 2017-11-23 | 2018-05-29 | 成都海申科技有限公司 | Jetting machine safety valve |
| CN108980421A (en) * | 2018-09-12 | 2018-12-11 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN112145764A (en) * | 2020-09-22 | 2020-12-29 | 黄广华 | Pressure relief joint applied to high-pressure cleaning machine |
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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: 20140730 Termination date: 20170116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |