CN2898510Y - Pressure safety valve - Google Patents
Pressure safety valve Download PDFInfo
- Publication number
- CN2898510Y CN2898510Y CN 200620084926 CN200620084926U CN2898510Y CN 2898510 Y CN2898510 Y CN 2898510Y CN 200620084926 CN200620084926 CN 200620084926 CN 200620084926 U CN200620084926 U CN 200620084926U CN 2898510 Y CN2898510 Y CN 2898510Y
- Authority
- CN
- China
- Prior art keywords
- valve
- pad
- cavity
- valve pad
- stream
- 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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- Safety Valves (AREA)
Abstract
The utility model discloses a pressure safety valve, which comprises a valve body, a valve cover which is arranged on the debouchement end of the valve body, the valve body and the valve cover form a closed cavity; the inlet path and the outlet path which are respectively connected with the cavity, the control device which is arranged in the cavity to control the cross-connection or the cut-off of the inlet path and the outlet path, the control device comprises a valve pad and a forcing device which can force the strength on the valve pad, the valve pad is near the debouchment of the outlet path on the cavity, the inlet path is corresponding to the moving direction of the valve pad along the debouchement direction of the cavity. The valve pad implements the cross-connection or the cut-off of the inlet path and the outlet path by controlling the debouchement of the outlet path, because the valve pad can be made as big as the permissive scope of the cavity, the force on the valve pad can be enlarged, thereby the opening pressure precision of the pressure safety valve can be greatly improved.
Description
Technical field
The utility model relates to the pressure valve technical field, relates in particular to a kind of seal container that is connected in, and can open the safety valve of release automatically when the pressure in the seal container reaches setting value.
Background technique
The water that is contained in the water heater enclosed space can produce steam through heating, and when air pressure was excessive, the joint of each parts was easy to generate leakage.Especially solar water heater because it is subjected to the glass tube of hotting mask to accept solar energy by being coated with, so too high air pressure can make glass tube break, causes the damage that is difficult to remedy.Known a kind of pressure relief valve, it comprises valve body and valve gap, water inlet path and one go out water passage and form enclosed cavity with described valve body and valve gap respectively and communicate; Control described influent stream road is installed in the described cavity and goes out the control gear that stream connection/disconnection is communicated with, described control gear comprises a valve pad and the force application device that can force in valve pad, this valve pad is posted by into the water path at the opening of described cavity, because the water inlet path all can design smallerly at the opening of described cavity usually, its opening force that valve pad is applied is advanced the restriction of water passage opening size, also can be smaller, thereby the pressure precision of this opening of valves is lower, is not suitable for the following low pressure adjustment of 0.3Mpa.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of pressure relief valve is provided, and this valve is with simple structure, and pressure precision is low when having solved opening of valves, is not easy to the technical problem that low pressure is adjusted.
For solving the problems of the technologies described above, the technical solution of the utility model is: pressure relief valve, comprise valve body, and be installed on the valve gap of described valve body openings end, described valve body and valve gap form a sealed hollow; The influent stream road that can communicate with described cavity respectively and go out stream, be installed on the described influent stream of described cavity inner control road and go out the control gear that stream connection/disconnection is communicated with, described control gear comprises a valve pad and the force application device that can force in valve pad, described valve pad is posted by the described opening that goes out stream at described cavity, and described influent stream road is corresponding at the movement direction of the opening direction of described cavity and described valve pad.
As a kind of embodiment, described valve pad comprises and is positioned at the control device that the center region is used to seal out the stream opening, at the sealed department of fringe region cramping between described valve body openings end and valve gap, the transition part that is provided with flexibility between described control device and the sealed department.The material of described valve pad is preferably resilient rubber.
After having adopted technique scheme, the beneficial effects of the utility model are: because valve pad is posted by out the opening of stream at described cavity, described influent stream road is corresponding at the movement direction of the opening direction of described cavity and described valve pad, valve pad by control the stream opening realize the influent stream road with go out stream be communicated with/disconnect connection, thereby it is not subjected to the restriction of influent stream road in the openings of sizes of described cavity.The pressure of flowing medium passes to the cavity of safety valve in the seal container by the influent stream road, and make it to act on the unlatching end face of valve pad, because valve pad can be done greatly as far as possible in the scope that cavity allows, so the stressed meeting on the valve pad is exaggerated, its area is what times of influent stream road openings of sizes, how many stressed meetings on the valve pad is exaggerated doubly so, thus pressure precision when having improved opening of valves greatly.Because comprising, described valve pad is positioned at the control device that the center region is used to seal out the stream opening, at the sealed department of fringe region cramping between described valve body openings end and valve gap, the transition part that is provided with flexibility between described control device and the sealed department, the flowing medium pressure that is subjected to when control device is during greater than setting pressure, on the one hand, control device moves, and makes the influent stream road and goes out stream and be communicated with, and realizes release; On the other hand, sealed department between described valve body openings end and valve gap, is realized the sealing of valve body openings end and valve gap by cramping, and is simple in structure, safe and reliable.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the utility model embodiment's a longitudinal sectional view.
Embodiment
A kind of pressure relief valve as shown in drawings, comprises valve body 1, the opening end of valve body 1 valve gap 2 that is threaded, and described valve body 1 forms a sealed hollow with valve gap 2; The influent stream road 4 that is connected with seal container communicates with described cavity, goes out stream 5 and also communicates with described cavity.Controlling described influent stream road 4 is installed in the described cavity with the control gear that goes out stream 5 connection/disconnections connection, described control gear comprises a valve pad 3 and the force application device that can force in valve pad 3, described valve pad 3 is posted by the described opening that goes out stream 5 at described cavity, and described influent stream road 4 is corresponding at the movement direction of the opening direction of described cavity and described valve pad 3.
Described valve pad 3 comprises and is positioned at the control device that the center region is used to seal out the stream opening, at the sealed department of fringe region cramping between described valve body openings end and valve gap 2, is provided with flexible transition part between described control device and the sealed department.Described valve pad 3 preferentially selects for use the rubber-like rubber material to make.Elastic material can produce certain deformation when stressed, be convenient to the sealing between link.
Described force application device comprises a double-screw bolt 6 that is connected with the open-top screw thread of described valve gap 2, the pressure spring 7 of a cramping between the control device of described double-screw bolt 6 and described valve pad 3, a guide rod 8, one end of described guide rod 8 is fixed in the control device of valve pad 3, and the other end is arranged in the axial hole of described double-screw bolt 6.Regulate the decrement that double-screw bolt 6 can be regulated pressure spring 7, thereby regulate the cracking pressure of valve pad 3.Because the transition part that is provided with flexibility between the control device of valve pad 3 and the sealed department, in the control device moving process, some swings or twisting may take place in control device, influence the reliability that valve pad 3 is opened or closed.This guide rod 8 can guarantee that the control device of valve pad 3 moves along a definite axis, thereby avoided these factors to the unlatching of valve pad 3 or close the influence of reliability.
Claims (5)
1, pressure relief valve comprises valve body (1), is installed on the valve gap (2) of described valve body openings end, and described valve body (1) forms a sealed hollow with valve gap (2); The influent stream road (4) that can communicate with described cavity respectively and go out stream (5), be installed on described cavity inner control described influent stream road (4) and go out the control gear that stream (5) connection/disconnection is communicated with, described control gear comprises a valve pad (3) and the force application device that can force in valve pad (3), it is characterized in that: described valve pad (3) is posted by the described opening that goes out stream (5) at described cavity, and described influent stream road (4) is corresponding at the movement direction of the opening direction of described cavity and described valve pad (3).
2, pressure relief valve as claimed in claim 1, it is characterized in that: described valve pad (3) comprises and is positioned at the control device that the center region is used to seal out the stream opening, be positioned at the sealed department of fringe region cramping between described valve body openings end and valve gap (2), the transition part that is provided with flexibility between described control device and the sealed department.
3, pressure relief valve as claimed in claim 2 is characterized in that: the material of described valve pad (3) is a rubber-like rubber.
4, as described any pressure relief valve of claim 1 to 3, it is characterized in that: described force application device comprises a double-screw bolt (6) that is connected with the open-top screw thread of described valve gap (2), the pressure spring (7) of a cramping between described double-screw bolt (6) and described valve pad (3).
5, pressure relief valve as claimed in claim 4 is characterized in that: described force application device also comprises a guide rod (8), and an end of described guide rod (8) is fixed in valve pad (3), and the other end is arranged in the axial hole of described double-screw bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084926 CN2898510Y (en) | 2006-05-27 | 2006-05-27 | Pressure safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084926 CN2898510Y (en) | 2006-05-27 | 2006-05-27 | Pressure safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898510Y true CN2898510Y (en) | 2007-05-09 |
Family
ID=38073843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620084926 Expired - Fee Related CN2898510Y (en) | 2006-05-27 | 2006-05-27 | Pressure safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898510Y (en) |
-
2006
- 2006-05-27 CN CN 200620084926 patent/CN2898510Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |