CN219493145U - Water inlet preventing one-way valve for gas pipe - Google Patents
Water inlet preventing one-way valve for gas pipe Download PDFInfo
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- CN219493145U CN219493145U CN202320520152.9U CN202320520152U CN219493145U CN 219493145 U CN219493145 U CN 219493145U CN 202320520152 U CN202320520152 U CN 202320520152U CN 219493145 U CN219493145 U CN 219493145U
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- valve body
- cold water
- check valve
- water inlet
- hot water
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Abstract
The utility model belongs to the technical field of fuel gas, and particularly relates to a water inlet prevention check valve of a fuel gas pipe. Through setting up check valve body, the bottom mounting of check valve body is equipped with the current limiting valve, the current limiting valve can be used to when the user uses cold water in a large number, the current limiting effect of cold water exit current limiting valve, and when reducing cold water outflow, and then make the water yield of saving gas balanced cold water and hot water simultaneously, thereby effectively avoid causing the problem of water heater mistake start because of cold water outflow is too big, the switch valve body is fixed in on the pipeline of check valve body, can open the switch valve body when user's needs cold water and hot water keep constant temperature, hot water and cold water mix and reach normal atmospheric temperature, thereby make the convenience and the practicality of equipment.
Description
Technical Field
The utility model belongs to the technical field of fuel gas, and particularly relates to a water inlet prevention one-way valve of a fuel gas pipe.
Background
The preheating function of the zero cold water gas water heater has certain requirements on the installation and use environment. At present, the waterway installation mode of the zero-cooling water gas water heater has two types: one is a three-pipe scheme with a cold water pipe, a hot water pipe, and a return water pipe. One is only two pipe schemes of cold water pipe, hot-water line, need install the check valve additional at far water end wash platform department and communicate cold and hot water pipe, switch on the direction: the hot water flows to the cold water.
Working principle of two-pipe scheme of zero cold water gas water heater: (1) and starting a preheating function in a water-off state, driving the cold and hot water pipe to store water to circularly flow by the built-in circulating pump, and starting up to ignite and preheat when the circulating flow is greater than the starting-up flow. (2) When the circulating preheating is carried out, the cold water pipe water storage flows into the water heater, flows into the hot water pipe after being heated, and flows back into the cold water pipe again through the one-way valve.
Because the two-pipe scheme of the zero-cold water heater is communicated with the cold water pipe and the hot water pipe through the zero-cold water one-way valve, when a cold water faucet of a washing table, a flushing toilet, shower cold water or a washing machine is opened, most tap water flows to a water consumption point through the cold water pipe, and a small part of tap water flows through the water heater, the hot water pipe and the zero-cold water one-way valve and then flows to the water consumption point respectively, wherein the ratio of hot water diversion and cold water diversion is close to 1/3, and the starting flow of the zero-cold water gas water heater in the market is generally 2.5L/min; when the water consumption of the tap water flow reaches more than 10L/min, the split water quantity of the hot water pipe exceeds the starting flow of the water heater, so that the water heater is started up by mistake to ignite, and the user experience is affected.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a water inlet prevention one-way valve of a gas pipe, so as to solve the problems in the background art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a gas pipe prevents check valve that intakes, includes the check valve body, the bottom mounting of check valve body is equipped with the current limiting valve, the fixed switch valve body that is equipped with of outer wall of check valve body, the fixed bolt that is equipped with of one side of switch valve body, installation stopper, rotary valve. Through setting up the restriction valve, the top of restriction valve is fixed to be located the bottom of check valve body.
Preferably, the inside of switch valve body is fixed and is equipped with the internal thread, the external screw thread of bolt rotates to be connected the switch valve body, the top fixed welding of bolt rotary valve, just the fixed internal thread that is equipped with of inner wall of bolt. By arranging the bolts, the top ends of the bolts are welded with the bottom surface of the rotary valve.
Preferably, the inside fixed installation stopper that is equipped with of bolt, the fixed external screw thread and the spring that are equipped with of outer wall of installation stopper, just the external screw thread of installation stopper outer wall in the inside internal screw thread swivelling joint of bolt. Through setting up the installation stopper, the screw thread rotation through the outer wall of installation stopper in the inside connection of bolt.
Preferably, a cold water pipe is fixedly arranged at one end of the one-way valve body, a cold water inlet and a cold water outlet are respectively and fixedly arranged at two ends of the cold water pipe, and external threads are respectively and fixedly arranged on the outer walls of the cold water inlet and the cold water outlet. Through setting up the cold water pipe, the cold water pipe is fixed to be located the outer wall of check valve body, just the both ends of cold water pipe are fixed respectively be equipped with cold water inlet with cold water delivery port.
Preferably, a hot water pipe is fixedly arranged at one end of the one-way valve body, a hot water inlet and a hot water outlet are respectively and fixedly arranged at two ends of the hot water pipe, and external threads are respectively and fixedly arranged on the outer walls of the hot water inlet and the hot water outlet. Through setting up the hot-water line, the hot-water line is fixed to be located the outer wall of check valve body, just the both ends of hot-water line are fixed respectively be equipped with hot water inlet with hot water delivery port.
Preferably, the top of the one-way valve body is fixedly provided with a sleeve, the inside of the sleeve is fixedly provided with a water passing hole, a guide groove and a guide groove, and the inside of the flow limiting valve is fixedly provided with a sealing piece and a limiting spring. Through setting up the sleeve, telescopic bottom mounting is located the top of check valve body.
The utility model provides a water-inflow-preventing one-way valve of a gas pipe, which has the following beneficial effects:
1. according to the utility model, the one-way valve body is arranged, the flow limiting valve is fixedly arranged at the bottom end of the one-way valve body, the flow limiting valve can be used for limiting the flow of the cold water at the cold water outlet when a user uses the cold water in a large amount, and the gas is saved while the water outlet flow of the cold water is reduced, so that the water outlet quantity of the cold water and the hot water is balanced at the same time, the problem that the water heater is started by mistake due to overlarge water outlet flow of the cold water is effectively avoided, the switch valve body is fixed on a pipeline of the one-way valve body, the switch valve body can be opened when the user needs to keep constant temperature of the cold water and the hot water, and the hot water and the cold water are mixed to reach normal temperature, so that the convenience and the practicability of the device are realized.
2. According to the utility model, by arranging the switch valve body, when a user rotates the rotary valve, the bolt at the bottom of the rotary valve rotates to the inside of the switch valve body, and when a worker installs the switch valve body, the screw driver rotates the rotary installation plug for installation or disassembly, so that the convenience and practicability of the equipment are realized.
Drawings
FIG. 1 is a right-side view overall structure schematic diagram of the present utility model;
FIG. 2 is a left-hand overall schematic of the present utility model;
FIG. 3 is a schematic view of the right-down view structure of the present utility model;
fig. 4 is a schematic view of the left lower view structure of the present utility model.
In the figure: 1. a one-way valve body; 2. a switch valve; 3. a bolt; 4. rotating the valve; 5. a cold water outlet; 6. a cold water inlet; 7. a flow limiting valve; 8. a hot water inlet; 9. a hot water outlet; 10. a sleeve; 11. and installing a plug.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a gas pipe prevents check valve that intakes, includes check valve body 1, the bottom mounting of check valve body 1 is equipped with current limiting valve 7, the fixed switch valve body 2 that is equipped with of outer wall of check valve body 1, the fixed bolt 3, installation stopper 11, the rotary valve 4 that are equipped with of one side of switch valve body 2.
Through setting up check valve body 1, the bottom mounting of check valve body 1 is equipped with current limiting valve 7, current limiting valve 7 can be used to when the user uses cold water in a large number, the current limiting effect of cold water exit current limiting valve 7, and when reducing cold water outflow, and then make the water yield of saving gas balanced cold water and hot water simultaneously, thereby effectively avoid causing the problem of water heater mistake start because of cold water outflow is too big, switch valve body 2 is fixed in on the pipeline of check valve body 1, can open switch valve body 2 when user's needs cold water and hot water keep constant temperature, hot water and cold water mixing reach normal atmospheric temperature, thereby make the convenience and the practicality of equipment.
The inside of switch valve body 2 is fixed and is equipped with the internal thread, the external screw thread of bolt 3 rotates to be connected switch valve body 2, the fixed welding in top of bolt 3 rotary valve 4, just the fixed internal thread that is equipped with of inner wall of bolt 3.
Through setting up switch valve body 2, when rotatory twist rotary valve 4 of user, the bolt 3 of rotary valve 4 bottom rotates to the inside of switch valve body 2, when the staff installs switch valve body 2, uses the rotatory twist installation stopper 11 of screwdriver to install or dismantle to make the convenience and the practicality of equipment.
The bolt 3 is internally and fixedly provided with a mounting plug 11, the outer wall of the mounting plug 11 is fixedly provided with an external thread and a spring, and the external thread of the outer wall of the mounting plug 11 is in rotary connection with the internal thread of the bolt 3.
One end of the one-way valve body 1 is fixedly provided with a cold water pipe, two ends of the cold water pipe are respectively fixedly provided with a cold water inlet 6 and a cold water outlet 5, and the outer walls of the cold water inlet 6 and the cold water outlet 5 are respectively fixedly provided with external threads.
A hot water pipe is fixedly arranged at one end of the one-way valve body 1, a hot water inlet 8 and a hot water outlet 9 are respectively and fixedly arranged at two ends of the hot water pipe, and external threads are respectively and fixedly arranged on the outer walls of the hot water inlet 8 and the hot water outlet 9.
Through setting up the cold water pipe, cold water inlet 6 and cold water delivery port 5 that cold water pipe both ends were equipped with, when the water heater during operation, cold water input of cold water inlet 6 was in the water heater, and hot water after the heating flows into the hot-water line from hot water inlet 8, and hot water flows out from hot water delivery port 9 of hot-water line one end when the user used hot water, and when the user closed switch valve body 2, cold water delivery port 5 only had cold water output, and just hot water delivery port 9 only had hot water output equally to make the convenience and the practicality of equipment.
The top of the one-way valve body 1 is fixedly provided with a sleeve 10, the inside of the sleeve 10 is fixedly provided with a water passing hole, a guide groove and a guide groove, and the inside of the flow limiting valve 7 is fixedly provided with a sealing piece and a limiting spring.
Specific use and action of the embodiment: the bottom end mounting of check valve body 1 is equipped with flow limiting valve 7, flow limiting valve 7 can be used when the user uses cold water in a large number, and when reducing cold water outlet flow, and then make the balanced cold water of gas and hot water simultaneously water yield, thereby effectively avoid because of the too big problem that causes the water heater to start by mistake of cold water outlet flow, switch valve body 2 is fixed in on the pipeline of check valve body 1, can open switch valve body 2 when user needs cold water and hot water keep constant temperature, hot water and cold water mixing reach normal atmospheric temperature, when user rotates and twists rotary valve 4, bolt 3 in rotary valve 4 bottom rotates to switch valve body 2's inside, when the staff installs switch valve body 2, use screwdriver rotation twist installation stopper 11 to install or dismantle, cold water inlet 6 and cold water delivery port 5 that cold water pipe both ends were equipped with, when the water heater work, cold water inlet 6's cold water input is in the water heater, hot water inlet 8 after the heating flows in the hot-water line, when user uses hot water when hot water to flow out from hot water delivery port 9 of hot-water pipe one end, when user closes switch 2, user's output only has the cold water delivery port 5, and just make practicality convenient device.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a gas pipe prevents check valve that intakes, includes check valve body (1), its characterized in that: the bottom end fixing of check valve body (1) is equipped with current limiting valve (7), the outer wall of check valve body (1) is fixed to be equipped with switch valve body (2), the one side of switch valve body (2) is fixed to be equipped with bolt (3), installation stopper (11), rotary valve (4).
2. The gas pipe water inlet prevention check valve according to claim 1, wherein: the inside of switch valve body (2) is fixed and is equipped with the internal thread, the external screw thread of bolt (3) rotates to be connected switch valve body (2), the top fixed welding of bolt (3) rotary valve (4), just the fixed internal thread that is equipped with of inner wall of bolt (3).
3. The gas pipe water inlet prevention check valve according to claim 2, wherein: the bolt is characterized in that an installation plug (11) is fixedly arranged in the bolt (3), an external thread and a spring are fixedly arranged on the outer wall of the installation plug (11), and the external thread of the outer wall of the installation plug (11) is in rotary connection with the internal thread in the bolt (3).
4. The gas pipe water inlet prevention check valve according to claim 1, wherein: one end of the one-way valve body (1) is fixedly provided with a cold water pipe, two ends of the cold water pipe are respectively fixedly provided with a cold water inlet (6) and a cold water outlet (5), and the outer walls of the cold water inlet (6) and the cold water outlet (5) are respectively fixedly provided with external threads.
5. The gas pipe water inlet prevention check valve according to claim 4, wherein: the hot water pipe is fixedly arranged at one end of the one-way valve body (1), a hot water inlet (8) and a hot water outlet (9) are respectively and fixedly arranged at two ends of the hot water pipe, and external threads are respectively and fixedly arranged on the outer walls of the hot water inlet (8) and the hot water outlet (9).
6. The gas pipe water inlet prevention check valve according to claim 1, wherein: the top of the one-way valve body (1) is fixedly provided with a sleeve (10), the inside of the sleeve (10) is fixedly provided with a water passing hole, a guide groove and a guide groove, and the inside of the flow limiting valve (7) is fixedly provided with a sealing piece and a limiting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320520152.9U CN219493145U (en) | 2023-03-17 | 2023-03-17 | Water inlet preventing one-way valve for gas pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320520152.9U CN219493145U (en) | 2023-03-17 | 2023-03-17 | Water inlet preventing one-way valve for gas pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219493145U true CN219493145U (en) | 2023-08-08 |
Family
ID=87508775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320520152.9U Active CN219493145U (en) | 2023-03-17 | 2023-03-17 | Water inlet preventing one-way valve for gas pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219493145U (en) |
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2023
- 2023-03-17 CN CN202320520152.9U patent/CN219493145U/en active Active
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