CN203718015U - Ball valve with safety valve - Google Patents
Ball valve with safety valve Download PDFInfo
- Publication number
- CN203718015U CN203718015U CN201420117086.1U CN201420117086U CN203718015U CN 203718015 U CN203718015 U CN 203718015U CN 201420117086 U CN201420117086 U CN 201420117086U CN 203718015 U CN203718015 U CN 203718015U
- Authority
- CN
- China
- Prior art keywords
- valve
- safety
- ball
- valve body
- water heater
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 21
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
A ball valve with a safety valve comprises a valve body, a valve cover, a sealing pad, a valve element, a valve rod, a safety valve component, a handle and a fixing nut. The ball valve is characterized in that a part, connected with a water heater, of an outlet end of the ball valve is provided with the safety valve, the problem that the water pressure of a pipeline and the water heater is too high due to thermal expansion is avoided, and the cut-off ball valve and the safety valve are organically combined. The ball valve is simple in structure, the number of leakage points is small, and the ball valve can be widely used in heating pipelines such as a solar water heater and an electric water heater.
Description
Technical field
The utility model relates to a kind of ball valve, especially a kind of ball valve with safety valve.
Background technique
Current, valve has been widely used in the people to be had in the industrial fields such as field and oil, chemical industry, and particularly, in civil area, valve is as controlling component main in residential building water supply, heating, supply air line.
The artesian water containers such as the electric heating shower of selling on market, electric heating drinking machine, are generally all provided with safety valve, with the potential safety hazard of preventing to cause because of the pressure in inner bag, water temperature over-high.Technology supply, to the pipeline of water heater, has a cut-off valve now, is used for supplying or closing water route.In order to guarantee the safety of water heater, generally all can after cut-off valve, add a safety valve, prevent from causing hydraulic pressure too high because of thermal expansion.It is many that existing structure has leak source, the shortcomings such as cost is high, complex structure.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of water heater cut-off valve that is suitable as for the above-mentioned state of the art, can close the water that is fed to water heater, can prevent again the too high ball valve with safety valve of hydraulic pressure causing because of thermal expansion.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of ball valve with safety valve, comprise valve body, valve gap, sealing gasket, spool, valve rod, relief valve assembly, handle, set screw nut, wherein the axially open of valve body connects valve gap, spool is arranged in the cavity of valve body and valve gap formation, valve rod is arranged in the top tubular cavity of valve body, the two ends of valve rod connect respectively spool and handle, valve rod and handle are fixed by elastic washer and set screw nut, it is characterized in that: between described valve rod and valve body, by O type circle, seal.
As improvement, described relief valve assembly comprises that valve seat, steel ball, spring and external connector form, and valve seat is arranged on valve body, and steel ball and spring all adopt 304 stainless steel materials, and external connector adopts brass material.
As improvement, described external connector is designed with compression and connects or barb connecting port, guarantees and firm safety of being connected of discharge conduit.
Compared with prior art, the utility model has the advantage of: the position being connected with water heater at the outlet end of ball valve arranges a safety valve, prevent that pipeline and water heater from, because thermal expansion causes hydraulic pressure too high, organically combining cutting ball valve and safety valve.The utility model is simple in structure, and leak source is few, can be widely used in the heating pipelines such as solar water heater, electric water heater.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in the figure, a kind of ball valve with safety valve, comprise valve body 1, valve gap 2, sealing gasket 3, spool 4, valve rod 5, relief valve assembly 7, handle 8, set screw nut 10, the axially open of described valve body 1 connects valve gap 2, spool 4 is arranged in the cavity of valve body 1 and valve gap 2 formation, valve rod 5 is arranged in the top tubular cavity of valve body 1, and the two ends of valve rod 5 connect respectively spool 4 and handle 8, and valve rod 5 is fixing by elastic washer 9 and set screw nut 10 with handle 8.
Between described valve rod 5 and valve body 1, by O type circle 6, seal.Described relief valve assembly 7 comprises that valve seat 11, steel ball 71, spring 72 and external connector 73 form, and valve seat 11 is arranged on valve body 1, and steel ball 71 and spring 72 all adopt 304 stainless steel materials, and external connector 73 adopts brass material.Described external connector 73 is designed with compression and connects or barb connecting port 731, guarantees and firm safety of being connected of discharge conduit.
Working principle of the present utility model is further described.
The utility model entrance point is connected with cold feed pipeline, and outlet end is connected with water heater, plays and normally works the effect of closing.
When the pressure in water heater container increases due to thermal expansion stresses, when pressure reaches certain numerical value, in valve cavity, act on the spring force that pressure on steel ball 71 surpasses spring 72, steel ball 71 is separated with valve seat 11, safety valve 7 is opened draining, make the pressure in cavity can not continue to rise or add up, remain within the scope of certain pressure, thereby guarantee water heater and pipe safety.Pressure drop in container is to certain value, and during lower than the spring force of spring 72, under the effect of spring force, steel ball 71 contacts with valve port 11 again, safety valve 7 not drainings.
Claims (3)
1. the ball valve with safety valve, comprise valve body, valve gap, sealing gasket, spool, valve rod, relief valve assembly, handle, set screw nut, wherein the axially open of valve body connects valve gap, spool is arranged in the cavity of valve body and valve gap formation, valve rod is arranged in the top tubular cavity of valve body, the two ends of valve rod connect respectively spool and handle, and valve rod and handle are fixed by elastic washer and set screw nut, it is characterized in that: between described valve rod and valve body, by O type circle, seal.
2. the ball valve with safety valve according to claim 1, it is characterized in that: described relief valve assembly comprises that valve seat, steel ball, spring and external connector form, valve seat is arranged on valve body, and steel ball and spring all adopt 304 stainless steel materials, and external connector adopts brass material.
3. the ball valve with safety valve according to claim 1, is characterized in that: described external connector is designed with compression and connects or barb connecting port, guarantees and firm safety of being connected of discharge conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117086.1U CN203718015U (en) | 2014-03-17 | 2014-03-17 | Ball valve with safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117086.1U CN203718015U (en) | 2014-03-17 | 2014-03-17 | Ball valve with safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718015U true CN203718015U (en) | 2014-07-16 |
Family
ID=51157166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420117086.1U Expired - Lifetime CN203718015U (en) | 2014-03-17 | 2014-03-17 | Ball valve with safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718015U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016130129A1 (en) * | 2015-02-12 | 2016-08-18 | Conbraco Industries, Inc. | Relief valve |
| US9581354B2 (en) | 2015-02-12 | 2017-02-28 | Conbraco Industries, Inc. | Relief valve |
| CN106545668A (en) * | 2017-01-18 | 2017-03-29 | 宁波华成阀门有限公司 | A kind of ball valve with relief valve |
| CN106763878A (en) * | 2016-12-29 | 2017-05-31 | 常熟市南湖化工设备制造有限责任公司 | A kind of safety scald-proof temp.-control valve of liquid from cutout |
-
2014
- 2014-03-17 CN CN201420117086.1U patent/CN203718015U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016130129A1 (en) * | 2015-02-12 | 2016-08-18 | Conbraco Industries, Inc. | Relief valve |
| US9581354B2 (en) | 2015-02-12 | 2017-02-28 | Conbraco Industries, Inc. | Relief valve |
| CN106763878A (en) * | 2016-12-29 | 2017-05-31 | 常熟市南湖化工设备制造有限责任公司 | A kind of safety scald-proof temp.-control valve of liquid from cutout |
| CN106545668A (en) * | 2017-01-18 | 2017-03-29 | 宁波华成阀门有限公司 | A kind of ball valve with relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |