CN201858404U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN201858404U CN201858404U CN2010206273705U CN201020627370U CN201858404U CN 201858404 U CN201858404 U CN 201858404U CN 2010206273705 U CN2010206273705 U CN 2010206273705U CN 201020627370 U CN201020627370 U CN 201020627370U CN 201858404 U CN201858404 U CN 201858404U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- steel ball
- adjusting nut
- valve body
- face
- 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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- Taps Or Cocks (AREA)
- Safety Valves (AREA)
Abstract
The utility model relates to a safety valve, which comprises a valve body, a steel ball, a screw, an adjusting nut, an end face plugging device and a bias pressure device. The screw is disposed in a valve chamber, one end of the screw is abutted to the steel ball, the other end of the screw extends out of the valve body, the adjusting nut is disposed on the screw, the end plugging device is disposed at a screw inlet and used for plugging the screw inlet, a through hole allowing for penetration of one end of the screw extending out of the valve body is formed on the end face of the end face plugging device, the bias pressure device is disposed between the adjusting nut and the end face plugging device, a piston section matching with the inner wall of a corresponding section of the valve chamber is formed at one end of the screw abutted to the steel ball, when the screw presses the steel ball to seal a medium inlet, the piston section is positioned between the adjusting nut and a medium outlet, and a seal ring is arranged on the outer wall of the piston section. Flow entering the safety valve from the medium inlet cannot flow to a spring, and thereby spring corrosion is avoided.
Description
Technical field
The utility model relates to a kind of valve, specifically a kind of safety valve.
Background technique
Safety valve be a kind of can be according to the valve body of working pressure automatic on-off, generally be installed on protective system safety on the equipment of locking system or the pipeline.When the equipment of locking system or the pressure in the pipeline surpassed specified value, safety valve was promptly opened pressure release automatically, and assurance equipment and pipeline internal medium pressure try to avert accidents in regulation numerical value.Chinese patent literature CN2402894Y has proposed a kind of safety valve, it mainly is by valve body, set screw nut, compositions such as screw rod, in the cavity in the valve body adjusting nut is arranged, screw rod stretches out outside the valve body by adjusting nut and set screw nut in cavity, be with a spring on the screw rod, spring is between set screw nut and adjusting nut, two iron bars are arranged between set screw nut and the valve body, end near vent in the valve cavity has a steel ball, one vent is also arranged on the side of valve body, it is convenient, safe in utilization that the safety valve of the prior art has pressure regulation, also can be used as advantages such as gas charging valve.But in use also there are the following problems: in the prior art, between nut and two iron blocks, and between nut and the valve pocket what seal, therefore, after medium is washed steel ball open, some medium can be by nut and iron block, slit flow between nut and the valve pocket is to the spring place, can cause spring to steep in medium for a long time so on the one hand, the damage that gets rusty easily, on the other hand, the medium at spring place is difficult for coming out in nut and the formed approximate airtight space of valve pocket, during the look nut pressure spring, the medium at spring place is compressed and can produces very big resistance to nut, thereby causes the pressure regulation difficulty.
The model utility content
For this reason, technical problem to be solved in the utility model is that there is the liquid medium that comes from medium inlet stream in the spring place of safety valve of the prior art and causes spring to get rusty easily damaging and medium can produce very big resistance to nut when being compressed, thereby cause the pressure regulation difficult problem, a kind of safety valve that prevents MEDIA FLOW that medium inlet place flows to the spring place is provided.
For solving the problems of the technologies described above, a kind of safety valve of the present utility model comprises
Valve body forms valve pocket in the described valve body, and described valve pocket and the medium inlet that is molded on the described valve body, and media outlet and screw rod insert mouth and communicate;
Steel ball, described steel ball are arranged in the described valve pocket and locate near described medium inlet, realize described medium inlet is sealed;
Screw rod, described screw rod are arranged in the described valve pocket, and an end props up described steel ball, and the other end stretches out outside the described valve body;
Adjusting nut, described adjusting nut are arranged on the described screw rod, under the constraint of described valve pocket inwall, slide along described screw axis direction only, and not rotatable;
End face blocking device, described end face blocking device are arranged on described screw rod and insert the ingress, described screw rod is inserted mouthful carry out shutoff, and form the through hole that the end that stretches out described valve body that is fit to described screw rod passes on the end face of described end face blocking device;
Biased member, described biased member are arranged between described adjusting nut and the described end face blocking device;
Form the piston section that cooperates with the correspondent section inwall of described valve pocket on the end that withstands described steel ball of described screw rod, when described screw rod withstood described steel ball and seals described medium inlet, described piston section was between described adjusting nut and the described media outlet; And the outer wall of described piston section is provided with seal ring.
Described safety valve forms vent on the end face of described end face blocking device.
Described safety valve, described biased member are spring.
Technique scheme of the present utility model has the following advantages compared to existing technology, 1, in the utility model, the setting of screw rod upper piston section and seal ring can stop the medium that flows into from the medium inlet, liquid medium particularly, flow to adjusting nut, in the space that end face blocking device and valve pocket three constitute, avoided the corrosion of liquid medium on the one hand to spring, prolonged the working life of safety valve, when the opposing party has also avoided pressure regulation, need additionally overcome liquid medium and nut be produced bigger resistance by compression the time, thereby cause the problem of pressure regulation difficulty.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the generalized section of safety valve of the present utility model.
Reference character is expressed as among the figure: 1-valve body, 2-valve pocket, 3-medium inlet, 4-media outlet, 5-piston section, 6-steel ball, 7-screw rod, 8-adjusting nut, 9-end face blocking device, 10-spring, 11-seal ring, 12-vent.
Embodiment
As shown in Figure 1, a kind of safety valve of embodiment 1 comprises
Valve body 1 forms valve pocket 2 in the described valve body, and described valve pocket 2 and the medium inlet 3 that is molded on the described valve body 1, and media outlet 4 and screw rod insert mouth and communicate;
Screw rod 7, described screw rod 7 are arranged in the described valve pocket 2, and an end props up described steel ball 6, and the other end stretches out outside the described valve body 1;
Adjusting nut 8, described adjusting nut 8 are arranged on the described screw rod 7, under the constraint of described valve pocket 2 inwalls, slide along described screw rod 7 axial directions only, and not rotatable;
End face blocking device 9, described end face blocking device 9 are arranged on described screw rod and insert the ingress, described screw rod is inserted mouthful carry out shutoff, and form the through hole that the end that stretches out described valve body 1 that is fit to described screw rod 7 passes on the end face of described end face blocking device 9;
Biased member, described biased member are arranged between described adjusting nut 8 and the described end face blocking device 9; In the present embodiment, described biased member is a spring 10.
Form the piston section 5 that cooperates with the correspondent section inwall of described valve pocket 2 on the end that withstands described steel ball 6 of described screw rod 7, when described screw rod 7 withstood the described medium inlet 3 of described steel ball 6 sealings, described piston section 5 was between described adjusting nut 8 and the described media outlet 4; And the outer wall of described piston section 5 is provided with seal ring 11.Described piston section 5 can stop the medium that flows into from the medium inlet with the setting of described seal ring 11, liquid medium particularly, flow to described adjusting nut 8, in the space that described end face blocking device 9 and described valve pocket 2 threes constitute, avoided the corrosion of liquid medium on the one hand, prolonged the working life of safety valve, when the opposing party has also avoided pressure regulation described spring 10, need additionally overcome liquid medium and nut be produced bigger resistance by compression the time, thereby cause the problem of pressure regulation difficulty.Form on the end face of described end face blocking device 9 and the extraneous vent 12 that communicates.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (3)
1. a safety valve comprises
Valve body (1) forms valve pocket (2) in the described valve body (1), and described valve pocket (2) and the medium inlet (3) that is molded on the described valve body (1), and media outlet (4) and screw rod insert mouth and communicate;
Steel ball (6), described steel ball (6) are arranged in the described valve pocket (2) and locate near described medium inlet (3), realize described medium inlet (3) are sealed;
Screw rod (7), described screw rod (7) are arranged in the described valve pocket (2), and an end props up described steel ball (6), and the other end stretches out outside the described valve body (1);
Adjusting nut (8), described adjusting nut (8) are arranged on the described screw rod (7), under the constraint of described valve pocket (2) inwall, slide along described screw rod (7) axial direction only, and not rotatable;
End face blocking device (9), described end face blocking device (9) is arranged on described screw rod and inserts the ingress, described screw rod inserted mouthful carry out shutoff, and form the through hole that the end that stretches out described valve body (1) that is fit to described screw rod (7) passes on the end face of described end face blocking device (9);
Biased member, described biased member are arranged between described adjusting nut (8) and the described end face blocking device (9);
It is characterized in that:
Form the piston section (5) that cooperates with the correspondent section inwall of described valve pocket (2) on the end that withstands described steel ball (6) of described screw rod (7), when described screw rod (7) withstood described steel ball (6) and seals described medium inlet (3), described piston section (5) was between described adjusting nut (8) and the described media outlet (4); And the outer wall of described piston section (5) is provided with seal ring (11).
2. safety valve according to claim 1 is characterized in that: form vent (12) on the end face of described end face blocking device (9).
3. safety valve according to claim 1 is characterized in that: described biased member is spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206273705U CN201858404U (en) | 2010-11-23 | 2010-11-23 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206273705U CN201858404U (en) | 2010-11-23 | 2010-11-23 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858404U true CN201858404U (en) | 2011-06-08 |
Family
ID=44104210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206273705U Expired - Fee Related CN201858404U (en) | 2010-11-23 | 2010-11-23 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973147A (en) * | 2011-09-05 | 2013-03-20 | 创意国际有限公司 | Soda water machine |
| WO2020093184A1 (en) * | 2018-11-05 | 2020-05-14 | 卢润侨 | Pump control valve |
-
2010
- 2010-11-23 CN CN2010206273705U patent/CN201858404U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973147A (en) * | 2011-09-05 | 2013-03-20 | 创意国际有限公司 | Soda water machine |
| WO2020093184A1 (en) * | 2018-11-05 | 2020-05-14 | 卢润侨 | Pump control valve |
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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: 20110608 Termination date: 20121123 |