CN203146942U - Durable duplex spring safety valve - Google Patents
Durable duplex spring safety valve Download PDFInfo
- Publication number
- CN203146942U CN203146942U CN 201320025505 CN201320025505U CN203146942U CN 203146942 U CN203146942 U CN 203146942U CN 201320025505 CN201320025505 CN 201320025505 CN 201320025505 U CN201320025505 U CN 201320025505U CN 203146942 U CN203146942 U CN 203146942U
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- safety valve
- valve seat
- durable
- 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 durable duplex spring safety valve which comprises a valve and a valve seat. The valve is connected with the valve seat, an adjusting nut is screwed at the upper end of the valve, an upper spring guide pad and a lower spring guide pad which correspond to each other are respectively fixedly mounted on the inner top of the adjusting nut and in the valve, 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, a rotatable sealing ring which is matched with the valve clack is sleeved on the upper end surface of the valve seat, and the valve clack is tightly abutted to the sealing ring at the upper end of the valve seat by the aid of the pressure of the compression spring so as to be sealed. The durable duplex spring safety valve has the advantages that the durable duplex spring safety valve is simple and reasonable in structure and convenient to use, damage to a sealing surface due to rotation of the valve clack is effectively prevented, the service life of the safety valve is prolonged, and the serviceability of the safety valve is guaranteed.
Description
Technical field
The utility model relates to a kind of safety valve, is specially a kind of durable type 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.In the existing Duplex safety valve using process, need sometimes cracking pressure is adjusted, and when being rotated adjusting, flap is driven to rotate, and then cause sealing surface impaired easily, sealing descends, 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 durable type Duplex safety valve, when being rotated adjusting, flap is driven to rotate to solve Duplex safety valve traditional in the prior art, and then cause sealing surface impaired easily, sealing descends, 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 durable type 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 valve seat upper end end face is with the rotating seal ring that matches with flap, and described flap forms sealing by the seal ring that the pressure that compresses spring pushes against in the valve seat upper end.
Described a kind of durable type 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 durable type 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 rotating seal ring design that employing matches with flap in the end face setting of valve seat upper end, make safety valve when carrying out the cracking pressure adjustment, if flap is followed valve rod and rotated, then seal ring also and then rotates, and has prevented effectively owing to flap rotates the generation that causes the sealing surface damaged phenomenon, 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 durable type 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, valve seat 2 upper end end faces are with the rotating seal ring 9 that matches with flap 8, and flap 8 forms sealing by the seal ring 9 that the pressure that compresses spring 7 pushes against in valve seat 2 upper ends.
Claims (3)
1. durable type 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 valve seat upper end end face is with the rotating seal ring that matches with flap, and described flap forms sealing by the seal ring that the pressure that compresses spring pushes against in the valve seat upper end.
2. a kind of durable type 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 durable type 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 201320025505 CN203146942U (en) | 2013-01-17 | 2013-01-17 | Durable duplex spring safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025505 CN203146942U (en) | 2013-01-17 | 2013-01-17 | Durable duplex spring safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146942U true CN203146942U (en) | 2013-08-21 |
Family
ID=48974466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025505 Expired - Fee Related CN203146942U (en) | 2013-01-17 | 2013-01-17 | Durable duplex spring safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146942U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-01-17 CN CN 201320025505 patent/CN203146942U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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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: 20130821 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |