CN2663761Y - Security valve of electric water heater - Google Patents
Security valve of electric water heater Download PDFInfo
- Publication number
- CN2663761Y CN2663761Y CN 200320108077 CN200320108077U CN2663761Y CN 2663761 Y CN2663761 Y CN 2663761Y CN 200320108077 CN200320108077 CN 200320108077 CN 200320108077 U CN200320108077 U CN 200320108077U CN 2663761 Y CN2663761 Y CN 2663761Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- water heater
- valve rod
- pad sheet
- 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 - Lifetime
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Abstract
The utility model discloses a security valve of an electric water heater. The utility model comprises a valve body, an adjusting cap, a water inlet spring, a return flow body, a decompression pad sheet, a spring seat, a decompression spring, a press cap, a sealing seat, an O-shaped ring, a draw rod and a handle, wherein the return flow body is composed of a pressure spring, a positioning seat, a flat pad sheet and a valve rod; an inner hole of the flat pad sheet is embedded in a lug boss of the positioning seat and arranged on the valve rod, the flat pad sheet and the valve rod are combined into a whole in a way that the pressure spring clamps a groove of the valve rod; the flat pad sheet is abutted by the water inlet spring on the flat pad sheet and positioned by the adjusting cap; the return flow body is arranged in a main cavity body of the valve body; a water inlet of the valve body is also provided with 8 to 100 positioning lug bosses which are uniformly distributed. The utility model has the advantages of no whistle, no return flow of hot water during water shutoff, no dashing out of a sealing pad sheet, no water leakage of the handle position, etc., and is a new generation of the security valve of the electric water heater.
Description
One, technical field:
The utility model relates to a kind of safety valve, and is especially relevant with electric water heater safety valve.
Two, background technique
Safety valve is the important composition parts of electric water heater, and its groundwork principle is a kind of protective gear that can drain automatically when tap water pressure is higher than the inner container of electric water heater rated pressure.Existing electric water heater safety valve exists that tap water reaches certain pressure and oppositely during pressure release, be easy to generate howling, hot water produced and flows backwards when tap water was cut off the water supply, during the reverse pressure release of inner bag high pressure, gasket seal is higher than setting pressure by recoil out valve body and tap water pressure of high pressure, and the handle place leaks etc. not enough easily during pressure release.
Three, summary of the invention
The purpose of this utility model provides a kind of no howling, hot water can not flow backwards when tap water was cut off the water supply, and gasket seal can not be rushed out and tap water pressure is higher than and sets pressure release pressure and the handle place can not leak during pressure release electric water heater safety valve when the inner bag high pressure sluiced.
For achieving the above object, the utility model is realized by following technical solution: a kind of electric water heater safety valve comprises valve body, regulate cap, water inlet spring, reflux, the pressure release pad, spring seat, pressure release spring, pressure cap, sealing seat, O type circle, pull bar and handle, reflux is by stage clip, positioning seat, flat gasket and valve rod are formed, and the flat gasket endoporus is embedded in the positioning seat boss, be contained on the valve rod, block stem groove by stage clip and form one, its top is headed on by the water inlet spring, and by regulating the cap location, reflux is contained in the valve body main cavity, also is provided with 8-100 uniform positioning boss on the valve inleting water mouth.
Described electric water heater safety valve, it also comprises gasket seal, and sealing seat inner ring groove cooperates with O type circle, and the outer ring cooperates with gasket seal, is contained on the body seal mouth that leaks.
Described electric water heater safety valve is provided with protruding circle on the valve stem seal face that cooperates with flat gasket.
The utility model compared with prior art has the following advantages: (one) is compact structure, reasonable, and manufacture cost can reduce greatly, and stability and Economy have both; (2) be to be provided with boss at the main cavity water intake, the valve rod bottom surface cooperates during with backflow, the control return flow, and making refluxes under any pressure reduction can not produce howling; (3) be that main cavity inner valve stem sealing surface has a protruding circle to cooperate with flat gasket, changed traditional sealing means, increased reverse sealing greatly, when tap water was cut off the water supply, hot water can not flow backwards; (4) be that the flat gasket endoporus is embedded on the positioning seat boss, and head on that when making the water heater high pressure reflow, flat gasket can not gone out by water by valve rod; (5) be at the main body handle place of leaking a sealing seat to be housed, its inwall O type circle cooperates with pull bar, and the outer ring gasket seal cooperates with the body seal mouth that leaks, and when making tap water pressure be higher than the pressure release setting pressure, the handle place can not leak; (6) be the closed electrical water heater of this kind electric water heater safety valve, and assembling is simple, safe ready applicable to any model.
Four, description of drawings
Fig. 1 is the structural representation of a kind of electric water heater safety valve of the utility model.
Five, embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
As shown in Figure 1, a kind of electric water heater safety valve comprises valve body 1, regulate cap 2, water inlet spring 3, reflux 19, pressure release pad 8, spring seat 9, pressure release spring 10, pressure cap 11, gasket seal 12, sealing seat 13, O type circle 14, pull bar 15 and handle 16, reflux 19 be by stage clip 4, positioning seat 5, flat gasket 6 and valve rod 7 are formed, flat gasket 6 endoporus are embedded in positioning seat 5 boss, are contained on the valve rod 7, block valve rod 7 grooves by stage clip 4 and form one, its top is headed on by water inlet spring 3, and by regulating cap 2 location, reflux 19 is contained in valve body 1 main cavity 20, also is provided with 9 uniform positioning boss 17 on valve body 1 water intake, sealing seat 13 inner ring grooves cooperate with O type circle 14, the outer ring cooperates with gasket seal 12, is contained on the body seal mouth that leaks, and is provided with protruding circle 18 on valve rod 7 sealing surfaces that cooperate with flat gasket 6.
Claims (3)
1, a kind of electric water heater safety valve, comprise valve body (1), regulate cap (2), water inlet spring (3), reflux (19), pressure release pad (8), spring seat (9), pressure release spring (10), pressure cap (11), sealing seat (13), O type circle (14), pull bar (15) and handle (16), reflux (19) be by stage clip (4), positioning seat (5), flat gasket (6) and valve rod (7) are formed, flat gasket (6) endoporus is embedded in positioning seat (5) boss, is contained on the valve rod (7), blocks valve rod (7) groove by stage clip (4) and forms one, its top is headed on by water inlet spring (3), and by regulating cap (2) location, reflux (19) is contained in valve body (1) main cavity (20), it is characterized in that: also be provided with 8-100 uniform positioning boss (17) on valve body (1) water intake.
2, electric water heater safety valve according to claim 1 is characterized in that: it also comprises gasket seal (12), and sealing seat (13) inner ring groove cooperates with O type circle (14), and the outer ring cooperates with gasket seal (12), is contained on the body seal mouth that leaks.
3, electric water heater safety valve according to claim 1 and 2 is characterized in that: be provided with protruding circle (18) on valve rod (7) sealing surface that cooperates with flat gasket (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320108077 CN2663761Y (en) | 2003-11-12 | 2003-11-12 | Security valve of electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320108077 CN2663761Y (en) | 2003-11-12 | 2003-11-12 | Security valve of electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663761Y true CN2663761Y (en) | 2004-12-15 |
Family
ID=34342501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320108077 Expired - Lifetime CN2663761Y (en) | 2003-11-12 | 2003-11-12 | Security valve of electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663761Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453869C (en) * | 2005-07-25 | 2009-01-21 | 诸暨市三峰机械有限公司 | Filtration type convex ring type electric water heater safety valve |
-
2003
- 2003-11-12 CN CN 200320108077 patent/CN2663761Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453869C (en) * | 2005-07-25 | 2009-01-21 | 诸暨市三峰机械有限公司 | Filtration type convex ring type electric water heater safety 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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131112 Granted publication date: 20041215 |