CN202118324U - Automatic leakage-prevention gas safety protector - Google Patents
Automatic leakage-prevention gas safety protector Download PDFInfo
- Publication number
- CN202118324U CN202118324U CN2011202232946U CN201120223294U CN202118324U CN 202118324 U CN202118324 U CN 202118324U CN 2011202232946 U CN2011202232946 U CN 2011202232946U CN 201120223294 U CN201120223294 U CN 201120223294U CN 202118324 U CN202118324 U CN 202118324U
- Authority
- CN
- China
- Prior art keywords
- gas
- spring
- valve
- valve rod
- safety protector
- 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
Images
Landscapes
- Feeding And Controlling Fuel (AREA)
Abstract
The utility model discloses an automatic leakage-prevention gas safety protector, which comprises a valve. The valve comprises a stepped cavity which is axially arranged, a gas inlet and a gas outlet, wherein the gas inlet and the gas outlet are respectively communicated with the stepped cavity. A valve rod capable of moving vertically along the stepped cavity is arranged in the stepped cavity. The lower end of the valve rod is provided with a sealing valve plate, and a push rod for adjusting gas flow is arranged below the sealing valve plate. A spring is fixedly arranged on the bottom face of the sealing valve plate. When the valve rod moves to the lowest end, the bottom face of the spring is elastically abutted to the top face of the push rod. When the gas is in normal use, the valve rod is positioned at the lowest end and the spring is compressed. When gas supply stops, the valve rod is ascended to the top end under the action of the spring, and the gas inlet and the gas outlet are blocked. When the gas supply recovers, the valve rod is still positioned at the top end, and gas cannot leak out.
Description
Technical field
The utility model relates to fuel safety protecting device, is specifically related to the automatic leak-proof gas safety protector.
Background technique
Domestic gas in use; If cooking stove stops working, stops suddenly air feed, delivery line breakage suddenly or break to cause under the situation of gas leakage; All should be able to cut off gas source automatically, play the effect of safety protection, effectively avoid the generation of contingency.
China utility model patent CN2560804Y discloses a kind of automatic leak-proof combustion gas protector, and Fig. 1, Fig. 2 show the working state of this automatic leak-proof combustion gas protector under the proper functioning and the good for both sides situation that meets accident, and be as shown in Figure 1; During proper functioning, combustion gas gets into stepped inner chamber 18 by inlet hole 19, again by air outlet hole 6 outputs; Valve rod 5 and guiding valve sheet 2 and be enclosed within the bottom that diaphragm seal 3 on the valve rod 5 all is positioned at valve body 7; When the kitchen range that are connected with air outlet hole 6 break down or the ultra flow of combustion gas and causing when revealing,, make pressure in the stepped inner chamber 18 greater than the pressure in the gas leakage end and destroy original pressure balance and produce pressure difference because the combustion gas of inlet hole 19 carries flow velocity greater than air outlet hole 6; At this moment; Because pressure difference and flow velocity have overcome the weight of valve rod 5, thereby being risen, valve rod 5 blocks air outlet hole 6, cut off the conveying of combustion gas automatically; Avoid combustion gas to continue to leak and cause the accident, as shown in Figure 2.In the time of after the kitchen range fault that is connected with air outlet hole 6 is got rid of, need opening again, push pressure cap 12 downwards, pressure cap 12 drives controlling rod 15 and moves down, and valve rod is pushed away returning to channel status as shown in Figure 1 for 5 times.
Working procedure by above-mentioned this automatic leak-proof combustion gas protector is not difficult to find out that there is following shortcoming in it: when air feed stops suddenly, because automatic leak-proof combustion gas protector can not closed voluntarily; When system's air feed recovers, can cause leaking in a large number of combustion gas, one meets fire; Will cause burning or blast; Cause contingency, that is to say, this automatic leak-proof combustion gas protector can not be realized automatic protection when stopping air feed suddenly.
The model utility content
The utility model technical problem to be solved is to solve automatic leak-proof combustion gas protector to close voluntarily when air feed stops Shi Buhui suddenly, when system's air feed recovers, can cause the problem that leaks in a large number of combustion gas.
In order to solve the problems of the technologies described above; The technological scheme that the utility model adopted provides a kind of automatic leak-proof gas safety protector, comprises valve body, and said valve body has a stepped inner chamber that is provided with vertically and suction port and the air outlet that is communicated with said stepped inner chamber respectively; Be provided with the valve rod that can move up and down along said stepped inner chamber in the said stepped inner chamber; The lower end of said valve rod is provided with the sealing valve block, and the below of said sealing valve block is provided with the push rod that is used to regulate gas flow, is fixed with spring on the bottom surface of said sealing valve block; When said valve rod moved to bottom, the end face elasticity of the bottom surface of said spring and said push rod offseted.
In such scheme, it is axially arranged with up big and down small frustum the upper edge, bottom surface of said sealing valve block, and the bottom surface of said frustum is provided with groove, and the roof anchorage of said spring is in said groove.
In such scheme, be screwed with knob on the said valve body lower end outer peripheral surface, be provided with adjusting nut in the said knob, said adjusting nut spiral shell is contained in the endoporus of valve body lower end, and said push rod spiral shell is contained in the endoporus of said adjusting nut.
In such scheme, be provided with seal ring between the bottom surface of said push rod and the said knob.
In such scheme, said suction port is provided with internal thread, and the root of said air outlet is provided with outside thread.
The utility model is fixed with spring on the bottom surface of sealing valve block, and when said valve rod moved to bottom, the end face elasticity of the bottom surface of said spring and said push rod offseted; Like this, when combustion gas was normally used, valve rod was positioned at bottom, length of spring compressed; In case air feed stops suddenly, under the effect of spring, valve rod rises to top, and suction port and air outlet are broken off; When air feed recovered, valve rod still was in topmost, can not produce combustion gas and leak.
Description of drawings
Working state schematic representation during automatic leak-proof combustion gas protector proper functioning that Fig. 1 provides for existing technology;
Working state schematic representation when the automatic leak-proof combustion gas protector that Fig. 2 provides for existing technology meets accident;
Working state schematic representation during automatic leak-proof gas safety protector proper functioning that Fig. 3 the utility model provides;
Working state schematic representation during automatic leak-proof gas safety protector proper functioning that Fig. 3 the utility model provides;
Working state schematic representation when the automatic leak-proof gas safety protector that Fig. 4 the utility model provides stops air feed.
Working state schematic representation when the another kind of embodiment of automatic leak-proof gas safety protector that Fig. 5 provides for the utility model stops air feed.
Embodiment
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
The utility model is the improvement of on the basis of the automatic leak-proof combustion gas protector that Chinese utility model patent CN2560804Y provides, carrying out; Main improvement is to seal valve block and flow adjuster; For ease of contrast, the parts of the two same structure have adopted identical label.
Like Fig. 3, shown in Figure 4, the automatic leak-proof gas safety protector that the utility model provides comprises valve body 7, and valve body 7 has a stepped inner chamber 18 that is provided with vertically, and stepped inner chamber 18 is communicated with suction port 19 and air outlet 6 respectively.
Be provided with the valve rod 5 that can move up and down in the stepped inner chamber 18 along the axis of stepped inner chamber; The lower end of valve rod 5 is fixed with sealing valve block 3; The below of sealing valve block 3 is provided with the push rod 21 that is used to regulate gas flow; Be fixed with spring 31 on the bottom surface of sealing valve block 3, when valve rod 5 moved to bottom, the end face elasticity of the bottom surface of spring 31 and push rod 21 offseted.
The means of fixation of spring 31 can adopt following structure to realize, it is axially arranged with up big and down small frustum 32 upper edge, bottom surface of sealing valve block 3, and the bottom surface of frustum 32 is provided with groove 33, and the roof anchorage of spring 31 is in groove 33.
When the combustion gas normal combustion, combustion gas gets into stepped inner chamber 18 by inlet hole 19, again by air outlet hole 6 outputs; Valve rod 5 and sealing valve block 3 are positioned at the bottom of stepped inner chamber 18, when the kitchen range that are connected with air outlet hole 6 break down or the ultra flow of combustion gas and causing when leaking, because the combustion gas of inlet hole 19 conveying flow velocity is greater than air outlet hole 6; Make the pressure in the stepped inner chamber 18 destroy original pressure balance and produce pressure difference greater than the pressure in the gas leakage end; At this moment, because pressure difference and flow velocity have overcome the weight of valve rod 5,, valve rod 5 blocks air outlet hole 6 thereby being risen; Thereby cut off the conveying of combustion gas automatically, avoid combustion gas to continue to leak and cause the accident.In the time of after 6 of air outlet holes connect the kitchen range fault eliminating of establishing, need opening again, push pressure cap 12 downwards, drive controlling rod 15 and move down, valve rod is pushed away for 5 times, recover the channel status of beginning.
When air feed stops suddenly; Valve rod 5 drives sealing valve block 3 and moves up under the promotion of spring 31; Close suction port 19; When air feed was opened once more, the automatic leak-proof gas safety protector that is in closed condition can not opened automatically, thereby avoided gas cooker not causing unpredictable accident because of the people.
Therefore, the automatic leak-proof gas safety protector that the utility model provides can prevent to leak, and can prevent that again the various contingencies that caused when stopping air feed suddenly recovers air feed from taking place, and played the effect of duplicate protection.
In such scheme, suction port 19 is provided with internal thread, and the root of air outlet 6 is provided with outside thread, can avoid gas supply pipe to come off, and improves Security.
The adjusting of gas flow realizes through following structure in the utility model.Be screwed with knob 35 on the valve body 7 lower end outer peripheral surfaces, be provided with adjusting nut 1 in the knob 35, adjusting nut 1 spiral shell is contained in the endoporus of valve body 7 lower ends, and push rod 21 spiral shells are contained in the endoporus of adjusting nut 1, is provided with seal ring 34 between the bottom surface of push rod 21 and the knob 35.Owing to increased knob 35 and seal ring 34; Not only do not need special tool to regulate flow, and can make adjusting stable, laborsaving, especially the sealing of valve body 7 bottom thread is changed over plane sealing; Can not cause the leakage situation when closed, thoroughly solve the gas leakage potential safety hazard.
In the foregoing description, the root of air outlet 6 is provided with outside thread, and the end is provided with and is used to connect the flexible pipe ripple, and certainly, air outlet 6 also can only be provided with outside thread, and is as shown in Figure 5.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technological scheme, all fall within the protection domain of the utility model.
Claims (5)
1. automatic leak-proof gas safety protector; Comprise valve body, said valve body has a stepped inner chamber that is provided with vertically and suction port and the air outlet that is communicated with said stepped inner chamber respectively, is provided with the valve rod that can move up and down along said stepped inner chamber in the said stepped inner chamber; The lower end of said valve rod is provided with the sealing valve block; The below of said sealing valve block is provided with the push rod that is used to regulate gas flow, it is characterized in that, is fixed with spring on the bottom surface of said sealing valve block; When said valve rod moved to bottom, the end face elasticity of the bottom surface of said spring and said push rod offseted.
2. automatic leak-proof gas safety protector as claimed in claim 1 is characterized in that, it is axially arranged with up big and down small frustum the upper edge, bottom surface of said sealing valve block, and the bottom surface of said frustum is provided with groove, and the roof anchorage of said spring is in said groove.
3. automatic leak-proof gas safety protector as claimed in claim 1; It is characterized in that; Be screwed with knob on the said valve body lower end outer peripheral surface; Be provided with adjusting nut in the said knob, said adjusting nut spiral shell is contained in the endoporus of valve body lower end, and said push rod spiral shell is contained in the endoporus of said adjusting nut.
4. automatic leak-proof gas safety protector as claimed in claim 3 is characterized in that, is provided with seal ring between the bottom surface of said push rod and the said knob.
5. automatic leak-proof gas safety protector as claimed in claim 1 is characterized in that said suction port is provided with internal thread, and the root of said air outlet is provided with outside thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202232946U CN202118324U (en) | 2011-06-29 | 2011-06-29 | Automatic leakage-prevention gas safety protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202232946U CN202118324U (en) | 2011-06-29 | 2011-06-29 | Automatic leakage-prevention gas safety protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118324U true CN202118324U (en) | 2012-01-18 |
Family
ID=45459391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202232946U Expired - Lifetime CN202118324U (en) | 2011-06-29 | 2011-06-29 | Automatic leakage-prevention gas safety protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499850A (en) * | 2016-12-22 | 2017-03-15 | 邹启榆 | A kind of gas safe Anti-leakage self-close device |
-
2011
- 2011-06-29 CN CN2011202232946U patent/CN202118324U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499850A (en) * | 2016-12-22 | 2017-03-15 | 邹启榆 | A kind of gas safe Anti-leakage self-close device |
| CN106499850B (en) * | 2016-12-22 | 2018-09-21 | 邹启榆 | A kind of gas safe Anti-leakage self-close device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203906813U (en) | Pneumatic and manual normally-open emergency cut-off valve | |
| CN209451202U (en) | A kind of stable fire prevention fire valve | |
| CN207348972U (en) | A kind of inert gas generator double fuel automatic switching control system | |
| CN202118324U (en) | Automatic leakage-prevention gas safety protector | |
| CN103256415B (en) | Gas ball valve capable of shutting down automatically under overpressure or overcurrent condition | |
| CN203413193U (en) | Magnetic fireproof switch | |
| CN201050623Y (en) | Self-closing type gas cut-off valve | |
| CN103133705A (en) | Auto-exciting type differential action vacuum breaking valve | |
| CN201688141U (en) | Automatic closing gas pressure regulator | |
| CN209557130U (en) | A kind of marine diesel starting protection device | |
| CN203836306U (en) | Safety fuel gas valve capable of being turned off in case of overpressure and overflow | |
| CN101968232A (en) | Gas stove pan-overflowing automatic flameout device | |
| CN202469098U (en) | Gas safeguard valve | |
| CN203311280U (en) | Power-plant high-pressure heater liquid level switch self-cooling device | |
| CN102654208A (en) | Improved timing gas safety protection valve | |
| CN208735676U (en) | A kind of stove flame-out protection device having emergency function | |
| CN102374321A (en) | Fuel gas pressure control failure automatic protecting pressure regulator | |
| CN201599417U (en) | Exhaust valve | |
| CN202001682U (en) | Automatic closing valve dedicated for pipeline fuel gas | |
| CN204852544U (en) | Gas stop valve | |
| CN219827725U (en) | Gas timing cutting device and gas equipment | |
| CN201599462U (en) | Fluid decompression safety valve | |
| CN201715251U (en) | Pneumatic timing safety switch | |
| CN204387429U (en) | Pipeline gas self closing stop valve | |
| CN203514404U (en) | Vacuum suppressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
|
| CX01 | Expiry of patent term |