CN2757024Y - Pressure reducing valve for electric water heater - Google Patents
Pressure reducing valve for electric water heater Download PDFInfo
- Publication number
- CN2757024Y CN2757024Y CN 200420110876 CN200420110876U CN2757024Y CN 2757024 Y CN2757024 Y CN 2757024Y CN 200420110876 CN200420110876 CN 200420110876 CN 200420110876 U CN200420110876 U CN 200420110876U CN 2757024 Y CN2757024 Y CN 2757024Y
- Authority
- CN
- China
- Prior art keywords
- pressure release
- valve seat
- pressure
- valve body
- releasing
- 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 relates to a pressure-releasing valve for an electric water heater, which has stable operation and good sealing performance and is capable of preventing a water input pipeline from being plugged, wherein an inner pressure-releasing valve seat (6) and a retainer ring (2) are arranged in a water input passage of a valve body (1); a spring I (3) is arranged between the inner pressure-releasing valve seat (6) and the retainer ring; an inner pressure-releasing valve core (8) is penetrated in the inner pressure-releasing valve seat; an outer pressure-releasing valve core (21) is arranged in an outer pressure-releasing passage of the valve body (1); the outer pressure-releasing valve core (21) is connected with a draw rod (22) of which the rear part is sheathed with a regulating press cover (24); the outer end of the draw rod (22) is connected with a handle (26); the outer wall of the upper part of the inner pressure-releasing valve seat (6) is provided with a step (62) which shrinks inward in the radial direction; a water inlet of the valve body (1) is provided with a flower-shaped through hole (12). The utility model is suitable for being taken as safety valves for electric water heaters.
Description
Technical field
The utility model belongs to spring-loaded safety valve.
Background technology
The safety valve of electric heater has the interior pressure release part and the splenium branch that leaks.Outer pressure release can guarantee that inner container of electric water heater pressure is not higher than secure setting, interior pressure release then can be regulated the uniformity of intake pressure and inner liner pressure, when inner liner pressure surpasses certain value, a part of water in the inner bag is back to water pipe by interior pressure release passage, besides when water inlet is cut off the water supply, can guarantee to retain certain water yield in the inner bag, be unlikely electric heater and burn because of lack of water is empty.Its interior pressure releasing valve core of electric heater relief valve in the prior art is provided with a undergauge groove, valve core upper sleeve has its top of a turriform spring to embed the undergauge groove, the drawback that this structure causes is: 1. the assembling of the assembly of valve own and dismounting are relatively more difficult, 2. difficult can the maintenance appears damaging in valve, 3. equalizing pressure can not be regulated, and 4. turriform spring manufacture process control is relatively more difficult, and each is unequal to cause this spring pressure easily, can not regulate owing to pressure again, thus the uniformity of pressure release setting pressure in can not guaranteeing.A kind of electric heater relief valve that No. 200320130263.1 utility model patents of the previous application of the utility model designer disclose, described these drawbacks have been overcome, but the pressure release valve seat opened and closed stability and the relevant sealing moved and awaits further raising in its weak point was, when the water heater liner temperature is too high may cause in pressure releasing valve core when coming off, interior pressure releasing valve core can stop up inlet channel; Lack a kind of insurance besides and prevent that outer pressure release handle from being drawn back by accident.
Summary of the invention
The utility model is solving relatively difficulty of existing electric heater relief valve assembling, dismounting and maintenance, equalizing pressure can not be regulated, can not guarantee on the basis of problems such as interior pressure release setting pressure uniformity, pressure release valve seat operation stability and sealing has much room for improvement, might cause problem such as intake tunnel obstruction in solving, electric heater relief valve of the present utility model is provided for this reason, this relief valve in it pressure release valve seat operation stability and related seals good, even and interior pressure releasing valve core come off and also can not cause inlet channel to stop up.
For addressing the above problem, the technical solution adopted in the utility model is pressure release valve seat and a back-up ring in being provided with in the intake tunnel of valve body, be provided with spring I between interior pressure release valve seat and the back-up ring, be equipped with interior pressure releasing valve core in the interior pressure release valve seat, be provided with outer pressure release spool in the outer pressure release passage of valve body, be connected with its rear portion of pull bar on the outer pressure release spool and be with the adjusting gland, the pull bar outer end is connected with handle, its special character is: its external wall of upper portion of pressure release valve seat has the step that inwardly contracts in the footpath in described, and the water inlet of valve body is provided with colored shape through hole.
For preventing that the outer pressure release handle in the utility model from being drawn back by accident, can be connected with water in the discharge outlet of valve body and chew, water chew and handle between be associated with a fixing card.
The utility model is owing to have the step that inwardly contracts in the footpath in interior pressure release valve seat external wall of upper portion, and the footpath of the step top inwardly section of contracting can place and the limited through hole that runs on described back-up ring, so the pressure release valve seat opens and closes more stable, the relevant better tightness of operation in making; Again because the utility model is provided with colored shape through hole in the water inlet of valve body, under the situation that guarantees the water flowing flow, in a single day pressure releasing valve core comes off and enters external inlet channel and cause line clogging in preventing; Be connected with water in the discharge outlet of valve body and chew, water chew and handle between be associated with the fixing the utility model of card, can prevent that then handle from being drawn back accidents such as causing scald by accident.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the colored shape through hole schematic diagram that the utility model is seen from the water inlet direction;
Fig. 3 is the interior relief valve holder structure schematic diagram in the utility model;
Fig. 4 is interior pressure release valve seat outline drawing;
Fig. 5 is the fixedly card planar structure schematic diagram in the utility model.
Be labeled as among the figure: 1 valve body, 11 inlet valve seats, 12 flower shape water inlets, 13 water inlets, 14 delivery ports, 2 back-up rings, 3 spring I, 4 adjusting nuts, 5 spring II, 6 interior pressure release valve seats, 61 open slots, 62 steps, 7 gasket seals, 8 interior pressure releasing valve cores, 20 gasket seals, 21 outer pressure release spools, 22 pull bars, 23 spring III, 24 regulate gland, and 25 and female, 26 handles, 27 fixing cards, 28 water are chewed.
The specific embodiment
Electric heater relief valve, valve body 1 have discharge outlet, water inlet 13 and delivery port 14; Pressure release valve seat 6 and back-up ring 2 are provided with spring I3 between interior pressure release valve seat and the back-up ring in being provided with in the intake tunnel of valve body 1, are embedded with gasket seal 7 corresponding to inlet valve seat 11 on the interior pressure release valve seat; Pressure releasing valve core 8 in being equipped with in the interior pressure release valve seat; Be provided with outer pressure release spool 21 in the outer pressure release passage of valve body 1 and which is provided with gasket seal 20, be connected with pull bar 22 its rear portions on the outer pressure release spool 21 and be with gland 24 and the also female 25 built-in cavity rear end portions of leaking that are positioned valve body of regulating, be with spring III23 on the pull bar, pull bar 22 outer ends are connected with handle 26.Interior pressure releasing valve core 8 its tops have spiro rod section, and cover is furnished with an adjusting nut 4 on this spiro rod section.Be with on the interior pressure releasing valve core 8 between the retaining platform of spring II 5 in described adjusting nut 4 and interior pressure release valve seat 6.Interior pressure release valve seat 6 has the section of extending upward, and this extension is provided with open slot 61, and adjusting nut 4 has radially outwardly projecting and is positioned at open slot 61.The bottom surface of interior pressure releasing valve core 8 is provided with radial groove 81.Interior pressure release valve seat 6 its external wall of upper portion have the step 62 that inwardly contracts of footpath, and step 62 tops are the inwardly section of contracting of outer wall footpath, and this footpath inwardly section of contracting is placed through the central through hole of back-up ring 2.The water inlet of valve body 1 is provided with colored shape through hole 12; Be connected with water in the discharge outlet of valve body 1 and chew 28, water chew 28 and handle 26 between be associated with a fixing card 27.
Claims (2)
1, the electric heater relief valve, pressure release valve seat (6) and back-up ring (2) in being provided with in the intake tunnel of valve body (1), be provided with spring I (3) between interior pressure release valve seat and the back-up ring, be equipped with interior pressure releasing valve core (8) in the interior pressure release valve seat, be provided with outer pressure release spool (21) in the outer pressure release passage of valve body (1), be connected with its rear portion of pull bar (22) on the outer pressure release spool (21) and be with adjusting gland (24), pull bar (22) outer end is connected with handle (26), it is characterized in that: its external wall of upper portion of pressure release valve seat (6) has the step (62) that inwardly contracts in the footpath in described, and the water inlet of valve body (1) is provided with colored shape through hole (12).
2, electric heater relief valve as claimed in claim 1 is characterized in that discharge outlet at valve body (1) is connected with water and chews (28), and water is chewed and is associated with a fixing card (27) between (28) and the handle (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110876 CN2757024Y (en) | 2004-12-03 | 2004-12-03 | Pressure reducing valve for electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110876 CN2757024Y (en) | 2004-12-03 | 2004-12-03 | Pressure reducing valve for electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757024Y true CN2757024Y (en) | 2006-02-08 |
Family
ID=35965411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110876 Expired - Fee Related CN2757024Y (en) | 2004-12-03 | 2004-12-03 | Pressure reducing valve for electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2757024Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702248A (en) * | 2019-03-18 | 2020-09-25 | 台州巨力工具股份有限公司 | A pliers head and a hydraulic tool for cutting and sealing |
-
2004
- 2004-12-03 CN CN 200420110876 patent/CN2757024Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702248A (en) * | 2019-03-18 | 2020-09-25 | 台州巨力工具股份有限公司 | A pliers head and a hydraulic tool for cutting and sealing |
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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 |