CN221857638U - One-way check valve for fuel gas - Google Patents
One-way check valve for fuel gas Download PDFInfo
- Publication number
- CN221857638U CN221857638U CN202422231946.0U CN202422231946U CN221857638U CN 221857638 U CN221857638 U CN 221857638U CN 202422231946 U CN202422231946 U CN 202422231946U CN 221857638 U CN221857638 U CN 221857638U
- Authority
- CN
- China
- Prior art keywords
- valve body
- water
- gas
- way check
- check valve
- 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.)
- Active
Links
- 239000002737 fuel gas Substances 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 56
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000003345 natural gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to the technical field of gas pipeline connection, in particular to a gas one-way check valve. The gas one-way check valve comprises a valve body and a water stopping component arranged in the valve body; the two ends of the valve body are respectively provided with an external thread interface and an internal thread interface, the valve body is fixedly provided with an inner container sleeve, and a sleeve mouth is arranged on the inner container sleeve. According to the gas one-way check valve provided by the utility model, when the gas pipeline is connected to the water outlet of the water heater by mistake, the water stop assembly plays a sealing role on the inside of the valve body, so that water cannot enter the gas pipeline, the hidden danger of water inflow, pipeline blockage and equipment damage of the gas pipeline network is avoided, when the water stop assembly seals the sleeve flow port, the water pressure of the branch pipe is increased at the moment, the piston is driven to slide towards the contact type switch until the abutting piece on the piston is in contact with the contact type switch, and the warning lamp is lighted, so that a worker can quickly know that the pipeline is connected by mistake and correct the connecting pipeline in time.
Description
Technical Field
The utility model relates to the technical field of gas pipeline connection, in particular to a gas one-way check valve.
Background
In the process of using and installing the water heater, resident users frequently can take place to connect the problem of wrong water heater water inlet and outlet pipe, connect the gas pipe to the delivery port of the water heater by mistake, cause a large amount of domestic water to get into the gas pipe network, influence resident's normal gas consumption, in order to stop such mistake and connect the water pipe line joint of the water heater to the gas inlet pipe joint, make the gas pipe network intake, block up the pipeline, damage the apparatus, and then cause unnecessary financial and material resources to lose phenomenon, a kind of gas one-way check valve is designed now, the design of the one-way check valve of the application is in the normally open state under the effect of valve port under the effect of spring in the normal gas consumption condition, guarantee the normal gas consumption, and in case connect wrong water heater pipeline's condition, water reversely irrigates to the one-way valve department, because the natural gas pressure is 3000Pa pressure very little, and the pressure of water is above 0.2MPa, promote the shutoff dish in the one-way check valve to carry out shutoff, play the sealed effect, make water unable to get into the gas pipe, thereby can effectively connect the water to take place the hidden danger of the unnecessary financial and material resources to take place because of the wrong water inlet and outlet pipe is lost.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a gas one-way check valve.
The utility model provides a gas one-way check valve comprising:
Valve body, and
The water stopping component is internally arranged in the valve body and is used for ventilation and water sealing;
The two ends of the valve body are respectively provided with an external thread interface and an internal thread interface, an inner container sleeve is fixedly arranged on the inner wall of the valve body close to the internal thread interface, and a sleeve flow port communicated with the internal thread interface is formed in the inner container sleeve;
The water stopping assembly comprises a jogged disc, the jogged disc is fixedly jogged in a valve body, a sliding rod A in sliding connection is inserted on the jogged disc, a plugging disc for plugging the flow sleeving opening is fixedly installed at one end of the sliding rod A, which is close to the flow sleeving opening, a rod cap A is fixedly installed at the other end of the sliding rod A, a spring A is sleeved on the sliding rod A, and a plurality of water guide holes in annular distribution are formed in the jogged disc.
Preferably, one end of the spring A is fixedly connected with the disk surface of the jogged disk, which is close to the external thread interface, and the other end of the spring A is fixedly connected with the inner cap wall of the rod cap A.
Preferably, the valve body is further provided with a warning component, the warning component comprises a branch pipe and a warning lamp, the branch pipe is fixedly arranged on the valve body and communicated with a branch flow port formed in the valve body, the warning lamp is fixedly arranged on the valve body through a mounting frame, a contact switch for starting the warning lamp is arranged on the side wall of the shell of the warning lamp, the contact switch is inserted into a pipe orifice of a horizontal pipe section of the branch pipe, and a trigger for starting the warning lamp is arranged in the horizontal pipe section of the branch pipe.
Preferably, the trigger comprises a fixed frame, the fixed frame is fixedly arranged in a horizontal pipe section of the branch pipe, a sliding rod B in sliding connection is inserted on the fixed frame, a piston is fixedly arranged at one end of the sliding rod B, which is close to the contact type switch, the piston is in sliding connection with the horizontal pipe section of the branch pipe, a propping piece is fixedly embedded on the piston, a rod cap B is fixedly arranged at the other end of the sliding rod B, a spring B is sleeved on the sliding rod B, and a plurality of water holes in annular distribution are formed in the fixed frame.
Preferably, one end of the spring B is fixedly connected with the plate surface of the fixing frame, which is away from the piston, and the other end of the spring B is fixedly connected with the inner cap wall of the rod cap B.
Preferably, the branch flow port is arranged on one side of the valve body close to the external thread interface.
Compared with the related art, the gas one-way check valve provided by the utility model has the following beneficial effects:
1. According to the utility model, after the gas pipeline is connected to the water outlet of the water heater by mistake, the water stopping assembly has a sealing effect on the inside of the valve body, so that water cannot enter the gas pipeline, and the hidden trouble of water inlet, pipeline blockage and equipment damage of the gas pipeline network is avoided;
2. According to the utility model, after the water stop assembly seals the sleeve flow port, the water pressure of the branch pipe is increased at the moment, so that the piston is driven to slide towards the contact type switch until the contact piece on the piston is contacted with the contact type switch, and then the warning lamp is lightened, so that a worker can quickly know that the pipeline is connected incorrectly, and timely corrects the connecting pipeline.
Drawings
FIG. 1 is a schematic diagram of a fuel gas check valve according to a preferred embodiment of the present utility model;
FIG. 2 is a schematic view of the mounting structure of the water stop assembly shown in FIG. 1 when the valve body is in cross-section;
FIG. 3 is a schematic cross-sectional view of the valve body of FIG. 2;
FIG. 4 is a schematic view of the water stop assembly shown in FIG. 2;
FIG. 5 is a schematic structural diagram of the warning assembly shown in FIG. 2;
Fig. 6 is a schematic structural diagram of a trigger in the warning device shown in fig. 5.
Reference numerals in the drawings: 1. a valve body; 1a, a branch flow port; 11. an external threaded interface; 12. an internal threaded interface; 13. a liner sleeve; 13a, a sleeve flow port; 2. a water stop assembly; 21. a fitting plate; 21a, water guide holes; 22. a sliding rod A; 23. a plugging disc; 24. a pole cap A; 25. a spring A; 3. a warning component; 31. a branch flow pipe; 32. a warning light; 321. a contact type switch; 33. a trigger; 331. a fixing frame; 331a, water through holes; 332. a sliding rod B; 333. a piston; 3331. an abutting piece; 334. a pole cap B; 335. a spring B; 34. and (5) mounting a frame.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Specific implementations of the utility model are described in detail below in connection with specific embodiments.
Referring to fig. 1 to 6, a gas check valve according to an embodiment of the present utility model includes: valve body 1, stagnant water subassembly 2 and warning subassembly 3.
In the embodiment of the present utility model, referring to fig. 1 to 6, two ends of the valve body 1 are respectively provided with an external thread interface 11 and an internal thread interface 12, an inner liner sleeve 13 is fixedly installed on an inner wall of the valve body 1 close to the internal thread interface 12, a sleeve mouth 13a communicated with the internal thread interface 12 is formed on the inner liner sleeve 13, and a water stop component 2 for ventilation and water sealing is arranged in the valve body 1;
The water stop assembly 2 comprises a jogged disc 21, the jogged disc 21 is fixedly jogged in the valve body 1, a sliding rod A22 in sliding connection is inserted on the jogged disc 21, a blocking disc 23 for blocking the flow-sleeving opening 13a is fixedly installed at one end of the sliding rod A22 close to the flow-sleeving opening 13a, a rod cap A24 is fixedly installed at the other end of the sliding rod A22, a spring A25 is sleeved on the sliding rod A22, one end of the spring A25 is fixedly connected with the disc surface of the jogged disc 21 close to the external thread interface 11, the other end of the spring A25 is fixedly connected with the inner cap wall of the rod cap A24, and a plurality of water guide holes 21a in annular distribution are formed in the jogged disc 21.
It should be noted that: the internal thread interface 12 on the valve body 1 is in thread fixed connection with the interface of the gas pipeline (the valve body 1 is positioned at the tail side of the gas switching valve on the gas pipeline, so that the gas pipeline can stop supplying gas to the gas water heater after the gas switching valve is closed);
Under normal conditions, the external thread interface 11 on the valve body 1 is in threaded connection with the gas pipe interface on the gas water heater, at this time, the plugging disc 23 is close to the embedded disc 21 under the elastic force of the spring A25 due to the sliding rod A22, and the gas flow stroke is as follows:
the gas pipeline, the internal thread connector 12, the sleeve mouth 13a on the liner sleeve 13, the gap between the plugging disc 23 and the valve body 1, the water guide hole 21a on the jogged disc 21, the external thread connector 11 and the gas pipe of the gas water heater;
Therefore, the circulation of the fuel gas is not affected;
after the valve body 1 on the gas pipeline is connected to the water outlet of the water heater by mistake (namely, the external threaded connector 11 on the valve body 1 is in threaded connection with the water outlet of the water heater), if the water heater is started at this moment, water flows reversely to the check valve, and the water flow stroke is as follows:
The water outlet of the gas water heater enters the external thread interface 11 and flows through the water guide hole 21a on the jogged disc 21;
When the water flows into the containing cavity between the embedded disc 21 and the plugging disc 23, the pressure of the water is far higher than that of natural gas, so that the plugging disc 23 is driven to slide to the position of the sleeve opening 13a on the liner sleeve 13 through the sliding rod A22 and seal the sleeve opening by the impact of the water flow, and the spring A25 stretches at the moment;
Therefore, the plugging disc 23 plays a role in sealing the inside of the valve body 1, so that water cannot enter the gas pipeline, and hidden troubles of water inlet, pipeline blockage and equipment damage of the gas pipeline network are avoided.
In the embodiment of the present utility model, referring to fig. 1 to 6, an alarm assembly 3 is further disposed on the valve body 1, and the alarm assembly 3 includes a branch pipe 31 and an alarm lamp 32, the branch pipe 31 is fixedly mounted on the valve body 1 and is mutually communicated with a branch port 1a formed in the valve body 1, the branch port 1a is disposed on a side of the valve body 1 near the external threaded interface 11, the alarm lamp 32 is fixedly mounted on the valve body 1 through a mounting frame 34, a contact switch 321 for turning on the alarm lamp 32 is mounted on a side wall of a housing of the alarm lamp 32, the contact switch 321 is inserted into a pipe orifice of a horizontal pipe section of the branch pipe 31, and a trigger 33 for turning on the alarm lamp 32 is disposed in the horizontal pipe section of the branch pipe 31;
The trigger 33 includes a fixing frame 331, the fixing frame 331 is fixedly mounted in a horizontal tube section of the branch tube 31, a sliding rod B332 in sliding connection is inserted on the fixing frame 331, a piston 333 is fixedly mounted at one end of the sliding rod B332 close to the contact switch 321, the piston 333 is in sliding connection with the horizontal tube section of the branch tube 31, an abutting piece 3331 is fixedly embedded on the piston 333, a rod cap B334 is fixedly mounted at the other end of the sliding rod B332, a spring B335 is sleeved on the sliding rod B332, one end of the spring B335 is fixedly connected with a plate surface of the fixing frame 331, which is away from the piston 333, the other end of the spring B335 is fixedly connected with an inner cap wall of the rod cap B334, and a plurality of water holes 331a distributed in a ring shape are formed in the fixing frame 331.
It should be noted that: when the valve body 1 on the gas pipeline is connected to the water outlet of the water heater by mistake, part of water flows into the branch pipe 31 through the branch flow port 1a, at the moment, the water impacts the piston 333 through the water through hole 331a formed in the fixing frame 331, and when the water stopping component 2 seals the branch flow port 13a, the water pressure of the branch pipe 31 is increased, the piston 333 is driven to slide towards the contact type switch 321, the spring B335 stretches at the moment, and the warning lamp 32 is turned on until the abutting piece 3331 on the piston 333 and the contact type switch 321 are contacted with each other, so that a worker can quickly know that the pipeline is connected incorrectly and correct the connecting pipeline in time;
Whereas in the present embodiment: when the gas pipe is connected correctly, the natural gas enters the branch pipe 31 because the pressure of the natural gas is far lower than the pressure of the water and the piston 333 is limited by the spring B335, and the piston 333 cannot be driven.
The working principle of the gas one-way check valve provided by the utility model is as follows:
The internal thread interface 12 on the valve body 1 is in thread fixed connection with the interface of the gas pipeline (the valve body 1 is positioned at the tail side of the gas switching valve on the gas pipeline, so that the gas pipeline can stop supplying gas to the gas water heater after the gas switching valve is closed);
Under normal conditions, the external thread interface 11 on the valve body 1 is in threaded connection with the gas pipe interface on the gas water heater, at this time, the plugging disc 23 is close to the embedded disc 21 under the elastic force of the spring A25 due to the sliding rod A22, and the gas flow stroke is as follows: the gas pipeline, the internal thread connector 12, the sleeve mouth 13a on the liner sleeve 13, the gap between the plugging disc 23 and the valve body 1, the water guide hole 21a on the jogged disc 21, the external thread connector 11 and the gas pipe of the gas water heater; therefore, the circulation of the fuel gas is not affected;
After the valve body 1 on the gas pipeline is connected to the water outlet of the water heater by mistake (namely, the external threaded connector 11 on the valve body 1 is in threaded connection with the water outlet of the water heater), if the water heater is started at this moment, water flows reversely to the check valve, and the water flow stroke is as follows: the water outlet of the gas water heater enters the external thread interface 11 and flows through the water guide hole 21a on the jogged disc 21; when the water flows into the containing cavity between the embedded disc 21 and the plugging disc 23, the pressure of the water is far higher than that of natural gas, so that the plugging disc 23 is driven to slide to the position of the sleeve opening 13a on the liner sleeve 13 through the sliding rod A22 and seal the sleeve opening by the impact of the water flow, and the spring A25 stretches at the moment; therefore, the plugging disc 23 plays a role in sealing the inside of the valve body 1, so that water cannot enter the gas pipeline, and hidden troubles of water inlet, pipeline blockage and equipment damage of the gas pipeline network are avoided;
When the valve body 1 on the gas pipeline is connected to the water outlet of the water heater by mistake, part of water flows into the branch pipe 31 through the branch flow port 1a, at the moment, the water impacts the piston 333 through the water through hole 331a formed in the fixing frame 331, and after the water stopping component 2 seals the branch flow port 13a, the water pressure of the branch pipe 31 is increased, the piston 333 is driven to slide towards the contact type switch 321, the spring B335 stretches at the moment, and the warning lamp 32 is turned on until the abutting piece 3331 on the piston 333 and the contact type switch 321 are contacted with each other, so that a worker can quickly know the connection error of the pipeline and correct the connecting pipeline in time.
The circuits and control involved in the present utility model are all of the prior art, and are not described in detail herein.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (6)
1. A gas one-way check valve, comprising:
Valve body (1), and
A water stopping component (2) which is internally arranged in the valve body (1) and is used for ventilation and water sealing;
the two ends of the valve body (1) are respectively provided with an external thread interface (11) and an internal thread interface (12), an inner container sleeve (13) is fixedly arranged on the inner wall, close to the internal thread interface (12), of the valve body (1), and a sleeve flow port (13 a) communicated with the internal thread interface (12) is formed in the inner container sleeve (13);
The water stop assembly (2) comprises a jogged disc (21), the jogged disc (21) is fixedly jogged in the valve body (1), a sliding rod A (22) which is in sliding connection is inserted on the jogged disc (21), a blocking disc (23) used for blocking the flow sleeve opening (13 a) is fixedly arranged at one end of the sliding rod A (22) close to the flow sleeve opening (13 a), a rod cap A (24) is fixedly arranged at the other end of the sliding rod A (22), a spring A (25) is sleeved on the sliding rod A (22), and a plurality of water guide holes (21 a) which are annularly distributed are formed in the jogged disc (21).
2. The gas one-way check valve according to claim 1, wherein one end of the spring a (25) is fixedly connected with a disk surface of the fitting disk (21) close to the external threaded interface (11), and the other end of the spring a (25) is fixedly connected with an inner cap wall of the rod cap a (24).
3. The gas one-way check valve according to claim 1, wherein the valve body (1) is further provided with a warning component (3), the warning component (3) comprises a branch pipe (31) and a warning lamp (32), the branch pipe (31) is fixedly installed on the valve body (1) and is mutually communicated with a branch port (1 a) formed in the valve body (1), the warning lamp (32) is fixedly installed on the valve body (1) through a mounting frame (34), a contact type switch (321) for starting the warning lamp (32) is installed on the side wall of a shell of the warning lamp (32), the contact type switch (321) is inserted into a pipe orifice of a horizontal pipe section of the branch pipe (31), and a trigger (33) for starting the warning lamp (32) is arranged in the horizontal pipe section of the branch pipe (31).
4. A gas one-way check valve according to claim 3, wherein the trigger (33) comprises a fixing frame (331), the fixing frame (331) is fixedly installed in a horizontal pipe section of the branch pipe (31), a sliding rod B (332) in sliding connection is inserted on the fixing frame (331), a piston (333) is fixedly installed at one end of the sliding rod B (332) close to the contact type switch (321), the piston (333) is in sliding connection with the horizontal pipe section of the branch pipe (31), an abutting piece (3331) is fixedly embedded on the piston (333), a rod cap B (334) is fixedly installed at the other end of the sliding rod B (332), a spring B (335) is sleeved on the sliding rod B (332), and a plurality of water through holes (331 a) in annular distribution are formed in the fixing frame (331).
5. The gas one-way check valve according to claim 4, wherein one end of the spring B (335) is fixedly connected with a plate surface of the fixing frame (331) facing away from the piston (333), and the other end of the spring B (335) is fixedly connected with an inner cap wall of the rod cap B (334).
6. A gas one-way check valve according to claim 3, characterized in that the branch opening (1 a) is arranged on the side of the valve body (1) close to the external threaded connection (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422231946.0U CN221857638U (en) | 2024-09-12 | 2024-09-12 | One-way check valve for fuel gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422231946.0U CN221857638U (en) | 2024-09-12 | 2024-09-12 | One-way check valve for fuel gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221857638U true CN221857638U (en) | 2024-10-18 |
Family
ID=93043374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422231946.0U Active CN221857638U (en) | 2024-09-12 | 2024-09-12 | One-way check valve for fuel gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221857638U (en) |
-
2024
- 2024-09-12 CN CN202422231946.0U patent/CN221857638U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221857638U (en) | One-way check valve for fuel gas | |
| CN220436208U (en) | Explosion-proof chlorine buffer tank | |
| CN210165199U (en) | Natural gas valve with gas leakage protection | |
| CN110081253A (en) | Quick Matheson and Dresser joint | |
| CN215362697U (en) | Dustproof water leakage prevention water barrel cover | |
| CN213374880U (en) | Water fire extinguishing system atomising head easy to assemble | |
| CN220631882U (en) | Water bottle adapter and water dispenser | |
| CN109737312B (en) | Micro-leakage device | |
| CN221384979U (en) | Energy storage power station thermal management and failure control all-in-one | |
| CN208778965U (en) | Pipe joint subassembly and water heater | |
| CN220204773U (en) | Explosion-proof hose | |
| CN220523369U (en) | Water inlet valve for wafer cleaning mechanism | |
| CN207178787U (en) | A kind of check-valves | |
| CN217482071U (en) | Self-closing valve | |
| CN218762739U (en) | High temperature resistant high resistance to compression's protector that leaks | |
| CN220956894U (en) | Valve convenient to installation | |
| CN213149984U (en) | Multichannel combustible gas alarm verification and calibration device | |
| CN220727184U (en) | Novel stainless steel pneumatic control valve | |
| CN216334149U (en) | Fuel plastic oil tank | |
| CN205136688U (en) | Low resistance backflow preventer | |
| CN221423970U (en) | High-pressure-resistant one-way inflation valve | |
| CN213068109U (en) | Valve pipe fitting detection device | |
| CN219815098U (en) | Leak-proof valve inside type gas fire-extinguishing container valve | |
| CN219933746U (en) | Coal mine gas extraction adapter | |
| CN220452794U (en) | Water stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |