Water-gas linkage valve and gas water heater

Abstract

The utility model relates to the technical field of fluid valve bodies, and particularly discloses a water-gas linkage valve and a gas water heater. The water-gas linkage valve comprises a water valve assembly and an air valve assembly which are connected with each other, the water valve assembly comprises a water valve body, a magnetic floater, a magnetic control switch and a water flow sensor, and the water valve body is provided with a water flow pipeline; the magnetic floater and the water flow sensor are both arranged in the water flow pipeline, the water flow sensor is used for detecting the water flow in the water flow pipeline, and the magnetic control switch is fixed to the water valve body and can be triggered by the magnetic floater. According to the utility model, the risk of misconduction of the gas pipeline can be reduced, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid valve bodies, in particular to a water-gas linkage valve and a gas water heater. Background Art

[0002] The water-gas linkage valve is also called a water-gas linkage device, which includes a water valve assembly and a gas valve assembly. The function of the water-gas linkage device is that the gas valve can be opened when the water pressure is sufficient; when the water flow stops or the pressure is insufficient, the gas supply path is automatically cut off to prevent the equipment from being burned out due to water shortage.

[0003] For example, the Chinese utility model patent with the publication number of CN2807130Y discloses a water-gas linkage device, which detects the water flow rate in the water path through the cooperation of a magnetic float and a corresponding magnetic induction switch. After long-term use of this water-gas linkage valve, due to the accumulation of metal elements in the water, or when the water-gas linkage device shakes greatly, although the water flow rate in the water path does not reach the set value, it will also cause the magnetic induction switch to be mis-triggered, resulting in the misconnection of the gas pipeline and reducing the safety of use. Summary of the Utility Model

[0004] The utility model provides a water-gas linkage valve and a gas water heater, which can reduce the risk of misconnection of the gas pipeline and improve the safety of use.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] According to the first aspect of the utility model, an embodiment of the utility model provides a water-gas linkage valve, including a water valve assembly and a gas valve assembly connected to each other. The water valve assembly includes a water valve body, a magnetic float, a magnetic control switch and a water flow sensor. The water valve body is provided with a water flow pipeline; the magnetic float and the water flow sensor are both arranged in the water flow pipeline. The water flow sensor is used to detect the water flow rate in the water flow pipeline, and the magnetic control switch is fixed on the water valve body and can be triggered by the magnetic float.

[0007] In some embodiments, the water valve body includes an inlet joint, a first water pipe, a receiving cavity, a second water pipe and an outlet joint that are sequentially connected in the water flow direction. The magnetic float is arranged in the first water pipe, the magnetic control switch is fixed on the top of the first water pipe, and the water flow sensor is arranged in the receiving cavity.

[0008] In some embodiments, a pressure relief valve is arranged on the inlet joint.

[0009] In some embodiments, the water flow sensor is a turbine water flow sensor.

[0010] In some embodiments, the gas valve assembly includes a gas valve body, at least one electrically controlled switch valve and a second regulating valve. The gas valve body is provided with a gas pipeline, and the electrically controlled switch valve and the second regulating valve are both provided in the gas pipeline.

[0011] In some embodiments, two electrically-controlled switch valves are provided, namely a first electrically-controlled switch valve and a second electrically-controlled switch valve.

[0012] In some embodiments, the gas valve body includes a transversely extending gas outlet pipe, and the gas outlet of the gas pipeline is arranged on the side of the gas outlet pipe.

[0013] In some embodiments, the gas valve body includes a vertically extending connecting pipe, wherein an electrically controlled switching valve is fixed on one side of the connecting pipe.

[0014] According to the second aspect of the utility model, an embodiment of the utility model provides a gas water heater, comprising the water-gas linkage valve described in any one of the first aspects above, and also comprising a controller, wherein the magnetically controlled switch, water flow sensor and gas valve assembly are all connected to the controller.

[0015] The utility model has at least the following beneficial effects: a magnetic float and a water flow sensor are arranged in the water flow pipeline of the water-gas linkage valve of the utility model, a magnetically controlled switch which can be triggered by the magnetic float is fixed on the water valve body, the water flow sensor can detect the water flow in the water flow pipeline, and the gas pipeline is only turned on when the magnetically controlled switch is triggered and the water flow detected by the water flow sensor is greater than the set value, thereby reducing the risk of mis-conduction of the gas pipeline due to the mis-triggering of the magnetically controlled switch and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a water-gas linkage valve according to an embodiment of the utility model;

[0017] Figure 2 for Figure 1 Schematic cross-sectional view along section line AA;

[0018] Figure 3 This is a structural schematic diagram of a water-gas linkage valve according to an embodiment of the utility model;

[0019] Figure 4 for Figure 3 A schematic cross-sectional view taken along section line BB;

[0020] Figure 5 The utility model is a schematic structural diagram of a water-gas linkage valve according to another embodiment of the present invention.

[0021] Wherein, the accompanying drawings are marked as follows:

[0022] Water valve assembly 100, water valve body 110, water inlet joint 111, first water flow pipe 112, accommodation cavity 113, second water flow pipe 114, water outlet joint 115, magnetic float 120, magnetic control switch 130, water flow sensor 140, water flow pipeline 150, water inlet 151, water outlet 152, pressure relief valve 160, first regulating valve 170;

[0023] Gas valve assembly 200, gas valve body 210, gas outlet pipe 211, connecting pipe 212, first electrically controlled switch valve 221, second electrically controlled switch valve 222, second regulating valve 230, gas pipeline 240, gas inlet 241, gas outlet 242. Detailed implementation manners

[0024] The present utility model provides the following description with reference to the drawings to help a comprehensive understanding of various embodiments of the present utility model as defined by the claims and their equivalents. The description includes various specific details to facilitate understanding, but these details should be regarded as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present utility model.

[0025] In the description of the present utility model, the orientation description is involved. For example, the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0026] It should be understood that when an element (e.g., the first element) is "connected" to another element (e.g., the second element), the element can be directly connected to the other element, or there can be an intermediate element (e.g., the third element) between the element and the other element.

[0027] An embodiment of the present utility model provides a water-gas linkage valve, as Figure 1 and Figure 2 shown, including a water valve assembly 100 and a gas valve assembly 200 connected to each other, so that the water valve assembly 100 and the gas valve assembly 200 are combined together. The water valve assembly 100 and the gas valve assembly 200 can be fixed together by means such as screw locking, or the positions where the water valve assembly 100 and the gas valve assembly 200 are connected to each other can be connected together by an integrally formed manner.

[0028] The water valve assembly 100 includes a water valve body 110, a magnetic float 120, a magnetic control switch 130, and a water flow sensor 140. The water valve body 110 is provided with a water flow pipeline 150. The water flow pipeline 150 forms a water inlet 151 and a water outlet 152 on the surface of the water valve body 110. Water enters the water flow pipeline 150 from the water inlet 151, then flows along the water flow pipeline 150, and finally flows out from the water outlet 152. Both the magnetic float 120 and the water flow sensor 140 are arranged in the water flow pipeline 150. The water flow sensor 140 is used to detect the water flow rate in the water flow pipeline 150. The magnetic control switch 130 is fixed on the water valve body 110 and can be triggered by the magnetic float 120.

[0029] When the water level in the water flow pipeline 150 exceeds a certain value, the magnetic float 120 will float up, and the distance between it and the magnetic control switch 130 will be reduced to a certain value, thereby triggering the magnetic control switch 130. When specifically using the gas-water linkage valve of this embodiment, the gas valve assembly 200, the magnetic control switch 130, and the water flow sensor 140 are all connected to the corresponding controller. The controller will judge whether the water flow rate detected by the water flow sensor 140 is greater than the set value and whether the magnetic control switch 130 is triggered. When the magnetic control switch 130 is triggered and the water flow rate detected by the water flow sensor 140 is greater than the set value, it indicates that there is water flowing in the water flow pipeline 150. The controller then controls the gas valve assembly 200 to conduct the gas pipeline, and the corresponding burner can burn and work. Compared with the prior art that solely relies on the magnetic control switch 130, this embodiment can reduce the risk of mis-triggering the magnetic control switch 130 and causing mis-conduction of the gas pipeline, improving the safety of use.

[0030] In some embodiments, as Figure 1 and Figure 2 shown, the water valve body 110 includes an inlet joint 111, a first water pipe 112, a receiving cavity 113, a second water pipe 114, and an outlet joint 152 that are sequentially connected in the water flow direction. The internal cavities of the inlet joint 111, the first water pipe 112, the receiving cavity 113, the second water pipe 114, and the outlet joint 152 can be combined to form the water flow pipeline 150. The opening at the end of the inlet joint 111 forms the water inlet 151, and the opening at the end of the outlet joint 152 forms the water outlet 152. Both the inlet joint 111 and the outlet joint 115 can be conveniently connected to external pipelines. The magnetic float 120 is arranged in the first water pipe 112, the magnetic control switch 130 is fixed on the top of the first water pipe 112, and the water flow sensor 140 is arranged in the receiving cavity 113. In this embodiment, the magnetic float 120 and the water flow sensor 140 are arranged in different cavities to avoid interference with each other, and a receiving cavity 113 is specifically provided for the water flow sensor 140 to facilitate the installation of the water flow sensor 140. At the same time, the overall layout of the water valve body 110 is more reasonable, making the combination of each component more compact and also reserving sufficient accommodation space.

[0031] In some embodiments, a pressure relief valve 160 is provided on the water inlet joint 111. The pressure relief valve 160 can be opened when the pressure in the water flow pipeline 150 is too high to release the pressure in the water flow pipeline 150, avoiding damage to the magnetic float 120 and / or the water flow sensor 140, and playing a role in safety protection.

[0032] In some embodiments, the water flow sensor 140 is a turbine water flow sensor. Compared with a Hall sensor, the turbine water flow sensor can reduce power consumption, thereby prolonging the working time.

[0033] In some embodiments, a first regulating valve 170 is provided in the water flow pipeline 150. The first regulating valve 170 can adjust the opening degree of the water flow pipeline 150, and then appropriately adjust the flow rate of the water flow pipeline 150 to meet the user's water use needs.

[0034] In some embodiments, such as Figure 1 , Figure 3 and Figure 4 shown, the gas valve assembly 200 includes a gas valve body 210, at least one electrically controlled switch valve, and a second regulating valve 230. The gas valve body 210 is provided with a gas pipeline 240 for gas transmission. The gas pipeline 240 forms an air inlet 241 and an air outlet 242 on the surface of the gas valve body 210. Gas enters the gas pipeline 240 from the air inlet 241, flows along the gas pipeline 240, and then flows out from the air outlet 242. The electrically controlled switch valve and the second regulating valve 230 are both provided in the gas pipeline 240. The electrically controlled switch valve is used to control the conduction or disconnection of the gas pipeline 240, and the second regulating valve 230 can adjust the opening degree of the gas pipeline 240, thereby controlling the gas flow rate.

[0035] The gas valve body 210 of this embodiment can be fixedly connected to the water valve body 110. The electrically controlled switch valve and the second regulating valve 230 can both be connected to the controller. When the magnetic control switch 130 is triggered and the water flow rate detected by the water flow sensor 140 is greater than the set value, the controller sends a control signal to the electrically controlled switch valve, causing the electrically controlled switch valve to disconnect the gas pipeline 240, and the gas cannot be transported.

[0036] Further, there are two electrically controlled switch valves, namely a first electrically controlled switch valve 221 and a second electrically controlled switch valve 222. When the magnetic control switch 130 is triggered and the water flow rate detected by the water flow sensor 140 is greater than the set value, the controller sends control signals to both the first electrically controlled switch valve 221 and the second electrically controlled switch valve 222. The first electrically controlled switch valve 221 and the second electrically controlled switch valve 222 are both closed, and then both disconnect the gas pipeline 240, which can avoid the problem that a single electrically controlled switch valve fails and cannot disconnect the gas pipeline 240, further improving the reliability and safety.

[0037] In the direction of gas flow, the first electrically controlled switch valve 221, the second electrically controlled switch valve 222, and the second regulating valve 230 can be sequentially arranged, or the first electrically controlled switch valve 221, the second regulating valve 230, and the second electrically controlled switch valve 222 are sequentially arranged.

[0038] In some embodiments, as Figure 3 shown, the gas valve body 210 includes a laterally extending gas outlet pipe 211, and the gas outlet 242 of the gas pipeline is arranged on the side of the gas outlet pipe 211, forming a lateral gas outlet mode, which is applicable to the use scenario where the pipeline needs to be installed laterally, and helps to reduce the height of the entire water-gas linkage valve.

[0039] In some embodiments, as Figure 5 shown, the gas valve body 210 includes a vertically extending connecting pipe 212, and one of the electrically controlled switch valves is fixed on one side of the connecting pipe 212. Since there is enough space above the gas valve body 210, this structure makes good use of the space above the gas valve body 210, allowing the electrically controlled switch valve fixed on one side of the connecting pipe 212 to select a valve body with a larger size to be applicable to a gas water heater with a larger flow rate and / or capacity, and making the overall structure relatively compact. Compared with other gas circuit structures, the size of the entire water-gas linkage valve can be reduced.

[0040] In this embodiment, the second electrically controlled switch valve 222 of the above embodiment is fixed on one side of the connecting pipe 212.

[0041] An embodiment of the present utility model further provides a gas water heater, including the water-gas linkage valve of any one of the above embodiments. For the specific description of the water-gas linkage valve, reference can be made to the above embodiments, which will not be elaborated here. The gas water heater of this embodiment further includes a controller, and the magnetic control switch, the water flow sensor, and the gas valve assembly are all connected to the controller. When the magnetic control switch is triggered and the water flow detected by the water flow sensor is greater than the set value, it indicates that there is water flowing in the water flow pipeline, and the controller then controls the gas valve assembly to conduct the gas pipeline, and the corresponding burner can burn and work. Compared with the prior art that solely relies on the magnetic control switch, this embodiment can reduce the risk of mis-triggering of the magnetic control switch leading to mis-conduction of the gas pipeline, and improve the safety of use.

[0042] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the present utility model. Therefore, those skilled in the art should clearly understand that the above description of various embodiments of the present utility model is only for the purpose of illustration, rather than to limit the present utility model as defined by the appended claims and their equivalents.

Claims

1. A water-gas linkage valve, characterized in that: It comprises a water valve assembly and an air valve assembly connected to each other, wherein the water valve assembly comprises a water valve body, a magnetic float, a magnetically controlled switch and a water flow sensor, wherein the water valve body is provided with a water flow pipeline; the magnetic float and the water flow sensor are both arranged in the water flow pipeline, the water flow sensor is used to detect the water flow in the water flow pipeline, and the magnetically controlled switch is fixed on the water valve body and can be triggered by the magnetic float.

2. The water-gas linkage valve according to claim 1, characterized in that: The water valve body includes a water inlet joint, a first water flow pipe, a accommodating chamber, a second water flow pipe and a water outlet joint which are connected in sequence along the water flow direction. The magnetic float is arranged in the first water flow pipe, the magnetically controlled switch is fixed on the top of the first water flow pipe, and the water flow sensor is arranged in the accommodating chamber.

3. The water-gas linkage valve according to claim 2, characterized in that: A pressure relief valve is arranged on the water inlet joint.

4. The water-gas linkage valve according to claim 1, characterized in that: The water flow sensor is a turbine type water flow sensor.

5. The water-gas linkage valve according to any one of claims 1 to 4, characterized in that: The gas valve assembly comprises a gas valve body, at least one electrically controlled switch valve and a second regulating valve. The gas valve body is provided with a gas pipeline. The electrically controlled switch valve and the second regulating valve are both arranged in the gas pipeline.

6. The water-gas linkage valve according to claim 5, characterized in that: The electrically controlled switch valves are provided with two, namely a first electrically controlled switch valve and a second electrically controlled switch valve.

7. The water-gas linkage valve according to claim 5, characterized in that: The gas valve body comprises a transversely extending gas outlet pipe, and the gas outlet of the gas pipeline is arranged on the side of the gas outlet pipe.

8. The water-gas linkage valve according to claim 5, characterized in that: The gas valve body comprises a connecting pipe extending vertically, wherein an electric-controlled switch valve is fixed on one side of the connecting pipe.

9. A gas water heater, characterized in that: It comprises the water-gas linkage valve as described in any one of claims 1 to 8, and also comprises a controller, and the magnetically controlled switch, water flow sensor and gas valve assembly are all connected to the controller.

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