CN203784395U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN203784395U CN203784395U CN201420167155.XU CN201420167155U CN203784395U CN 203784395 U CN203784395 U CN 203784395U CN 201420167155 U CN201420167155 U CN 201420167155U CN 203784395 U CN203784395 U CN 203784395U
- Authority
- CN
- China
- Prior art keywords
- valve
- seat
- safety
- push rod
- safety valve
- 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
Abstract
The utility model discloses a safety valve. The safety valve comprises a valve seat and a valve cover, wherein a protection cover is arranged on the external surface of the valve cover; a screw plug seat is arranged on the top of the valve cover; a pressure regulating screw plug is arranged on the screw plug seat; a valve element seat is mounted on the valve seat; a valve element is arranged in the valve element seat; a retainer ring is arranged between the valve seat and the valve cover; the valve seat and the valve cover are connected by bolts; a spring positioning seat is arranged on the top of the valve element seat; a plurality of belleville springs are arranged on the spring positioning seat; an ejector rod bolt is fixed to the center of an ejector rod fixed seat by threads; one end of the ejector rod bolt is abutted against the valve element seat; the ejector rod bolt penetrates out of one end of the valve cover and is locked and fixed by an ejector rod nut. The safety valve has the advantages that the performance of a mechanical structure in the safety valve is improved, and the service life of the safety valve is prolonged.
Description
Technical field
The utility model relates to a kind of valve, is specifically a kind of safety valve.
Background technique
Safety valve is that open-shut device is subject under External Force Acting in normally off, when the pressure medium in equipment or pipeline raises while exceeding specified value, prevents that by discharge medium outside system in pipeline or equipment, pressure medium exceedes specified value.Safety valve belongs to self-acting valve class, is mainly used on boiler, pressurized container and pipeline, and pilot pressure is no more than specified value, and personal safety and equipment have been moved to important protective action.
Normally Direct spring loaded safety valve of the safety valve of air compressor, but the spring of the Direct spring loaded safety valve of prior art is due to long work, is bearing large load, easily damages.And safety valve, in the time of routine use, often there will be water to trickle down in relief valve port, cause caking or blocking phenomenon; In addition, also have in the valve body that dust can enter safety valve, reduce the performance of mechanical structure in safety valve, affect the release flow of safety valve.
Summary of the invention
In view of above-mentioned defect, the purpose of this utility model is: the safety valve that a kind of overall performance is good is provided.
Technical solution of the present utility model is: a kind of safety valve, comprise valve seat and valve gap, described valve gap outer surface is provided with safety cover, described valve gap top is provided with a plug screw seat, described plug screw seat is provided with pressure regulation plug screw, on described valve seat, valve core case is installed, in described valve core case, be provided with spool, between described valve seat and valve gap, be provided with back-up ring, described valve seat is connected with valve cover bolt, described valve core case top is provided with spring positioning seat, described spring positioning seat is provided with multiple belleville springs, the center of one push rod fixed base is fixed with a push rod bolt by screw thread, one end of described push rod bolt props up described valve core case, described push rod bolt passes one end of described valve gap and also fixes with push rod nut check.
Further, described valve core case outer surface is coated with stuffing box gland.
Further, described push rod bolt bottom is socketed with a Compress Spring.
Further, the quantity of described butterfly spring is 5～10.
The designed a kind of safety valve of application the utility model; its beneficial effect is: belleville spring rigidity is large; buffering vibration absorption ability is strong; can bear large load with small deformation; be suitable for the little occasion of axial space requirement; safety cover can anti-sealing or dust enter in valve body by valve gap, can improve the performance of mechanical structure in safety valve, and the working life of improving safety valve.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Shown in figure: 1-valve seat, 2-valve gap, 3-safety cover, 4-plug screw seat, 5-pressure regulation plug screw; 6-valve core case, 7-spool, 8-spring positioning seat, 9-belleville spring, 10-push rod fixed base; 11-push rod bolt, 12-push rod nut, 13-stuffing box gland, 14-Compress Spring, 15-back-up ring.
Embodiment
For more intuitively, intactly understanding the technical solution of the utility model, existing just to carry out nonrestrictive feature description in conjunction with the utility model accompanying drawing as follows:
As shown in Figure 1, a kind of safety valve, comprise valve seat 1 and valve gap 2, valve gap 2 outer surfaces are provided with safety cover 3, valve gap 2 tops are provided with a plug screw seat 4, plug screw seat 4 is provided with pressure regulation plug screw 5, valve core case 6 is installed on valve seat 1, in valve core case 6, be provided with spool 7, between valve seat 1 and valve gap 2, be provided with back-up ring 15, valve seat 1 is connected with valve gap 2 use bolts, valve core case 6 tops are provided with spring positioning seat 8, spring positioning seat 8 is provided with multiple belleville springs 9, one push rod fixed base 10 center is fixed with a push rod bolt 11 by screw thread, push rod bolt 11 bottoms are socketed with a Compress Spring 14, one end of push rod bolt 11 props up described valve core case 6, one end that push rod bolt 11 passes described valve gap 2 is also locked with push rod nut 12.
In order to improve the sealing of spool entirety, valve core case 6 outer surfaces are coated with stuffing box gland 13.
In order to improve the bearing load ability of belleville spring 9, the quantity of butterfly spring is 5～10.
A kind of safety valve that the utility model is designed; belleville spring 9 rigidity are large; buffering vibration absorption ability is strong; can bear large load with small deformation; be suitable for the little occasion of axial space requirement; safety cover 3 can anti-sealing or dust enter in valve body by valve gap 2, can improve the performance of mechanical structure in safety valve, and the working life of improving safety valve.
Certainly; the foregoing is only preferred embodiment of the present utility model; non-ly therefore limit to the scope of the claims of the present utility model; all utilization the utility model specifications and graphic content institute be simple and easy modification and equivalent structure variation for it, within all should being in like manner contained in scope of patent protection of the present utility model.
Claims (4)
1. a safety valve, comprise valve seat and valve gap, it is characterized in that: described valve gap outer surface is provided with safety cover, described valve gap top is provided with a plug screw seat, described plug screw seat is provided with pressure regulation plug screw, on described valve seat, valve core case is installed, in described valve core case, be provided with spool, between described valve seat and valve gap, be provided with back-up ring, described valve seat is connected with valve cover bolt, described valve core case top is provided with spring positioning seat, described spring positioning seat is provided with multiple belleville springs, the center of one push rod fixed base is fixed with a push rod bolt by screw thread, one end of described push rod bolt props up described valve core case, described push rod bolt passes one end of described valve gap and also fixes with push rod nut check.
2. a kind of safety valve according to claim 1, is characterized in that: described valve core case outer surface is coated with stuffing box gland.
3. a kind of safety valve according to claim 1, is characterized in that: described push rod bolt bottom is socketed with a Compress Spring.
4. a kind of safety valve according to claim 1, is characterized in that: the quantity of described butterfly spring is 5～10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167155.XU CN203784395U (en) | 2014-04-02 | 2014-04-02 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167155.XU CN203784395U (en) | 2014-04-02 | 2014-04-02 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784395U true CN203784395U (en) | 2014-08-20 |
Family
ID=51320583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420167155.XU Expired - Fee Related CN203784395U (en) | 2014-04-02 | 2014-04-02 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197069A (en) * | 2014-09-05 | 2014-12-10 | 陈巧琴 | Valve with valve deck protector |
-
2014
- 2014-04-02 CN CN201420167155.XU patent/CN203784395U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197069A (en) * | 2014-09-05 | 2014-12-10 | 陈巧琴 | Valve with valve deck protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ningbo Bry natural gas high pressure compressor Co., Ltd Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |