CN203146939U - Duplex spring-type safety valve - Google Patents
Duplex spring-type safety valve Download PDFInfo
- Publication number
- CN203146939U CN203146939U CN 201320025286 CN201320025286U CN203146939U CN 203146939 U CN203146939 U CN 203146939U CN 201320025286 CN201320025286 CN 201320025286 CN 201320025286 U CN201320025286 U CN 201320025286U CN 203146939 U CN203146939 U CN 203146939U
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- valve seat
- safety valve
- valve body
- 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 discloses a duplex spring-type safety valve which comprises a valve body and a valve seat. The valve body is connected with the valve seat. An adjusting nut is threaded at the upper end of the valve body. An upper spring guide pad and a lower spring guide pad which are corresponding to each other are fixedly mounted at the top in the adjusting nut and in the valve body respectively. Spring seats are respectively arranged in the upper spring guide pad and the lower spring guide pad. A compression spring is connected between the two spring seats. A valve clack corresponding to the valve seat is mounted at the lower end of the lower spring guide pad and is abutted against the upper end of the valve seat through pressure of the compression spring. An annular sealing protrusion protruding outwards is arranged on a sealing face at a joint of the valve clack and the valve seat. The duplex spring-type safety valve is simple and reasonable in structure; and the design that the annular sealing protrusion protruding outwards is arranged on the sealing face at the joint of the valve clack and the valve seat is adopted, abrasion-resistant performance of the valve clack is effectively improved, and the valve clack can still keep good sealing performance after being abraded due to long-time usage, so that service life of the safety valve is prolonged and normal use of the safety valve is guaranteed.
Description
Technical field
The utility model relates to a kind of safety valve, is specially a kind of Duplex safety valve.
Background technique
Direct spring loaded safety valve refer to rely on spring elastic pressure and with Sealing lockings such as the valve of valve or plungers, in case the high pressure that produces after the pressure anomaly of pressurized container will overcome the spring pressure of safety valve, so blocking device is backed down, formed a pressure release passage, high pressure is released.Direct spring loaded safety valve is mainly used in pressurized boiler, container, pipeline, to guarantee that pressurized system normally moves.After the long-time use of existing Duplex safety valve, the sealing surface of its flap and valve seat connecting part is frayed easily, and then causes sealing to descend, and shorten working life, influences the using effect of safety valve.
The model utility content
The purpose of this utility model provides a kind of Duplex safety valve, after solving the long-time use of Duplex safety valve traditional in the prior art, the sealing surface of its flap and valve seat connecting part is frayed easily, and then cause sealing to descend, shorten working life, influences the problem of safety valve using effect.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of Duplex safety valve, include the valve body and the valve seat that are connected, it is characterized in that: described valve body upper end has screwed togather adjusting nut, being installed with corresponding upper spring guiding pad and lower spring guiding in described adjusting nut inner top and the valve body respectively fills up, on described, be respectively equipped with spring seat in the lower spring guiding pad, be connected with the compression spring between described two spring seats, described lower spring guiding pad lower end is equipped with the flap corresponding with valve seat, described flap pushes against in the valve seat upper end by the pressure of compression spring, and the sealing surface of described flap and valve seat connecting part is provided with the ring packing projection of outside protrusion.
Described a kind of Duplex safety valve is characterized in that: described valve seat lower end is equipped with pipe joint by the pipe joint nut.
Described a kind of Duplex safety valve is characterized in that: described valve body upper end has screwed togather locking nut below adjusting nut.
The beneficial effects of the utility model are:
The utility model is simple and reasonable, easy to use, the sealing surface of employing in flap and valve seat connecting part arranges the design of the ring packing projection of outside protrusion, promoted the wear-resisting property of flap effectively, still can keep better seal after long-time use is frayed, prolong the working life of safety valve, guaranteed the normal use of safety valve.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of Duplex safety valve, include the valve body 1 and the valve seat 2 that are connected, valve body 1 upper end has screwed togather adjusting nut 3, be installed with corresponding upper spring guiding pad 4 and lower spring guiding pad 5 in adjusting nut 3 inner tops and the valve body 1 respectively, on, lower spring guiding pad 4, be respectively equipped with spring seat 6 in 5, be connected with compression spring 7 between two spring seats 6, lower spring guiding pad 5 lower ends are equipped with the flap 8 corresponding with valve seat 2, flap 8 pushes against in valve seat 2 upper ends by the pressure of compression spring 7, and the sealing surface of flap 8 and valve seat 2 connecting parts is provided with the ring packing projection 9 of outside protrusion.
Claims (3)
1. Duplex safety valve, include the valve body and the valve seat that are connected, it is characterized in that: described valve body upper end has screwed togather adjusting nut, being installed with corresponding upper spring guiding pad and lower spring guiding in described adjusting nut inner top and the valve body respectively fills up, on described, be respectively equipped with spring seat in the lower spring guiding pad, be connected with the compression spring between described two spring seats, described lower spring guiding pad lower end is equipped with the flap corresponding with valve seat, described flap pushes against in the valve seat upper end by the pressure of compression spring, and the sealing surface of described flap and valve seat connecting part is provided with the ring packing projection of outside protrusion.
2. a kind of Duplex safety valve according to claim 1, it is characterized in that: described valve seat lower end is equipped with pipe joint by the pipe joint nut.
3. a kind of Duplex safety valve according to claim 1 is characterized in that: screwed togather locking nut on the described valve body below adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025286 CN203146939U (en) | 2013-01-17 | 2013-01-17 | Duplex spring-type safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025286 CN203146939U (en) | 2013-01-17 | 2013-01-17 | Duplex spring-type safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146939U true CN203146939U (en) | 2013-08-21 |
Family
ID=48974463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025286 Expired - Fee Related CN203146939U (en) | 2013-01-17 | 2013-01-17 | Duplex spring-type safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485388A (en) * | 2016-01-19 | 2016-04-13 | 何祥军 | Pressure release valve of gear pump |
| CN111550587A (en) * | 2020-04-26 | 2020-08-18 | 九江市德昌五金机电有限公司 | Safety valve |
-
2013
- 2013-01-17 CN CN 201320025286 patent/CN203146939U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485388A (en) * | 2016-01-19 | 2016-04-13 | 何祥军 | Pressure release valve of gear pump |
| CN111550587A (en) * | 2020-04-26 | 2020-08-18 | 九江市德昌五金机电有限公司 | Safety valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203146939U (en) | Duplex spring-type safety valve | |
| CN204200248U (en) | A kind of coal mine hydraulic supporting column pilot operated check valve | |
| CN104930214A (en) | Rapid installation type high pressure floating ball valve | |
| CN202100779U (en) | One-way valve | |
| CN202228736U (en) | Ball check valve | |
| CN204140974U (en) | A kind of screw down nonreturn valve | |
| CN203146944U (en) | Corrosion-resistant and abrasion-resistant duplex spring safety valve | |
| CN203146942U (en) | Durable duplex spring safety valve | |
| CN106594336B (en) | A kind of unidirectional relief valve | |
| CN203146941U (en) | Corrosion-resistant duplex spring safety valve | |
| CN103615616A (en) | Low-temperature breakaway valve | |
| CN203098987U (en) | Anti-corrosion durable duplex spring type safety valve | |
| CN201723767U (en) | Floating ball valve | |
| CN202790659U (en) | Multifunctional spring seat of ball valve | |
| CN203146943U (en) | Durable high-temperature spring fall lift safety valve | |
| CN204917515U (en) | Elevator brake is with there not being wearing and tearing air buffer | |
| CN205859212U (en) | A kind of Q347 forged steel fixing ball valve | |
| CN202451110U (en) | Wellhead one-way valve | |
| CN204403477U (en) | A kind of safety valve | |
| CN203940050U (en) | The hard selfsealings circle of the oblique lobe formula of high-pressure anticorrosion non-return flap for the heart of nuclear power island | |
| CN204127418U (en) | Oil field water injection pump safety valve | |
| CN203906906U (en) | Stop check valve | |
| CN204284553U (en) | A kind of novel stop check valve | |
| CN103899768A (en) | Pressure self-sealing stop valve | |
| CN203515637U (en) | Pilot-operated check valve for hydraulic support |
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: 20130821 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |