A tee frost valve for a gas water heater

Abstract

The utility model provides a three -way freeze -proof valve for gas water heater, include: three -way valve subassembly, including water inlet end, water outlet end, drainage end and auxiliary drainage pipe in three -way valve subassembly, compare with prior art, the utility model has the beneficial effect as follows: through increasing three -way valve subassembly and auxiliary assembly, auxiliary assembly is located in the inside fixed setting of water inlet end, and the water outlet end is communicated with the drainage end when the water flow is interrupted during drainage, and the water in the gas water heater and three -way valve subassembly flows out through the drainage end, and the residual water in the water inlet end is collected into the collecting groove, and then is guided into the auxiliary drainage pipe through the drainage hole to guide the water out, thereby can prevent three -way valve subassembly low temperature damage, through increasing three -way valve subassembly, the low temperature environment uses the electric heating tube of two groups of symmetrical settings to start through the heating seat, and the heating cavity of helical structure transmits heat to the inside of three -way valve subassembly, thereby can improve three -way valve subassembly use adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of three-way valve technology, and specifically relates to a three-way antifreeze valve for gas-fired water heaters. Background Technology

[0002] A gas-fired water heater is a device that uses gas (such as natural gas or liquefied petroleum gas) as an energy source to heat water and provide domestic hot water or heating water. Its core function is to generate heat through gas combustion to heat the water flow and supply hot water. The most common type of gas-fired water heater in homes is the gas water heater. Gas water heaters have an inlet and an outlet. The inlet connects to the inlet pipe before use, and the outlet connects to the user end via a pipe. Most systems incorporate a valve structure at the inlet and inlet pipe connection to control the water flow. The commonly used valve structure in homes is a two-way valve, which only controls the flow of water. However, gas water heaters operate in varying temperatures, including low-temperature environments. In low temperatures, it may be necessary to interrupt the use of the gas water heater. Two-way valves cannot easily drain water from inside the valve and the water heater, potentially requiring valve disassembly, thus presenting several inconveniences.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a three-way antifreeze valve for gas-fired water heaters, and to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a three-way antifreeze valve for a gas-fired hot water device, comprising: a three-way valve assembly, the three-way valve assembly including an inlet end, an outlet end, a drain end and an auxiliary drain pipe, an outlet end provided above the inlet end, the inlet end and the outlet end having a straight structure, a drain end for draining at low temperature fixedly connected to the right end of the middle position between the inlet end and the outlet end, an auxiliary drain pipe fixedly connected to the lower right end of the inlet end, an auxiliary component for assisting drainage at low temperature fixedly connected to the inner side of the inlet end, the auxiliary component including a sealing seat, a collecting groove and a drain hole, a collecting groove for collecting drainage water being opened on the outer periphery of the upper surface of the sealing seat, and a drain hole being opened at the center of the right end of the upper surface of the collecting groove.

[0006] In a preferred embodiment, a channel switching handle is provided at the rear end between the water inlet and the water outlet. The auxiliary component also includes a sealing bracket, which is a connected structure and is fixedly installed on the upper inner side of the water inlet.

[0007] In a preferred embodiment, a sealing spring is fixedly connected to the lower center of the sealing bracket, and a sealing ball is fixedly connected to the lower part of the sealing spring.

[0008] In a preferred embodiment, a through hole for water flow is formed vertically through the center of the upper surface of the sealing seat. When no water flows through during the drainage period, the sealing ball is sealed and fitted with the through hole under the support of the sealing spring. When no water flows through, the sealing spring causes the sealing ball to move down and fit into the through hole, which helps the residual water to collect in the collection tank and then be discharged through the drainage hole.

[0009] In a preferred embodiment, the sealing seat is provided with an inclined frustum for guiding water between the through hole and the collecting groove, and the collecting groove is an inclined structure that gathers water towards the drain hole.

[0010] In a preferred embodiment, a set of drain valves is installed inside the auxiliary drain pipe. The auxiliary drain pipe is connected to the drain hole. Residual water is guided to the auxiliary drain pipe through the drain hole. Then, the drain valves are controlled to open the passage of the auxiliary drain pipe to allow the residual water to be discharged.

[0011] In a preferred embodiment, the inner surface of the drain end is an inclined structure with the inner diameter of the left end being smaller than that of the right end, and is used to assist in the natural guidance of water flow during drainage.

[0012] In a preferred embodiment, a heating base is fixedly connected to the left end of the middle position between the water inlet and the water outlet, and a set of heating chambers is opened on the inner side of both the water inlet and the water outlet; The heating chamber is designed with a spiral structure, and an electric heating tube is provided inside the heating chamber. Both sets of electric heating tubes are controlled by a heating base. In low-temperature environments, the heating base activates the two symmetrically arranged electric heating tubes, allowing the spiral heating chamber to transfer heat to the inside of the three-way valve assembly, thereby improving the adaptability of the three-way valve assembly.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are: 1. By adding a three-way valve assembly and an auxiliary assembly, the auxiliary assembly is fixedly installed inside the water inlet. When draining, the water flow is interrupted, connecting the water outlet and the drain end. The water in the gas water heater and the three-way valve assembly flows out through the drain end, and the water remaining inside the water inlet is collected in the collection tank and then introduced into the auxiliary drain pipe through the drain hole to discharge the auxiliary water, thereby preventing the three-way valve assembly from being damaged at low temperatures.

[0014] 2. By adding a three-way valve assembly, in low-temperature environments, the heating base is used to start two sets of symmetrically arranged electric heating tubes, so that the heating chamber of the spiral structure can transfer heat to the inside of the three-way valve assembly, thereby improving the adaptability of the three-way valve assembly. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the upper part of the overall structure of a three-way antifreeze valve for a gas-fired water heater according to the present invention.

[0017] Figure 2 This is a schematic diagram of the lower part of the overall structure of a three-way antifreeze valve for a gas-fired water heater according to the present invention.

[0018] Figure 3 This is a schematic diagram of the three-way valve assembly in a three-way antifreeze valve for a gas-fired hot water device according to the present invention.

[0019] Figure 4 This is a partial cross-sectional schematic diagram of the three-way valve assembly in a three-way antifreeze valve for a gas-fired hot water device according to the present invention.

[0020] Figure 5 This is a partial cross-sectional schematic diagram of an auxiliary component in a three-way antifreeze valve for a gas-fired hot water device according to the present invention.

[0021] In the diagram, 100-three-way valve assembly, 101-inlet, 102-outlet, 103-drain, 104-channel switching handle, 105-heating base, 106-heating chamber, 107-heating tube, 108-auxiliary drain pipe, 109-drain valve; 200-Auxiliary component, 201-Sealing seat bracket, 202-Sealing spring, 203-Sealing ball, 204-Sealing seat, 205-Through hole, 206-Inclined truncated cone, 207-Collection groove, 208-Drain hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 As the first embodiment of this utility model: A three-way antifreeze valve for a gas-fired hot water device includes: a three-way valve assembly 100, which includes an inlet end 101, an outlet end 102, a drain end 103, and an auxiliary drain pipe 108. A water outlet 102 is provided above the water inlet 101. The water inlet 101 and the water outlet 102 are in a straight line structure. A drain end 103 for draining water at low temperature is fixedly connected to the right end of the middle position between the water inlet 101 and the water outlet 102. An auxiliary drain pipe 108 is fixedly connected to the lower right end of the water inlet 101. An auxiliary component 200 for assisting drainage during low-temperature drainage is fixedly connected to the inner side of the water inlet 101. The auxiliary component 200 includes a sealing seat 204, a collecting groove 207 and a drain hole 208. The upper surface of the sealing seat 204 is provided with a collecting groove 207 for collecting water. A drain hole 208 is provided at the center of the right end of the upper surface of the collecting groove 207.

[0024] A channel switching handle 104 is provided at the rear end between the water inlet end 101 and the water outlet end 102. The auxiliary component 200 also includes a sealing seat 201, which is a connected structure and is fixedly installed on the upper inner side of the water inlet end 101.

[0025] A sealing spring 202 is fixedly connected to the middle position below the sealing bracket 201, and a sealing ball 203 is fixedly connected below the sealing spring 202.

[0026] A through hole 205 for water flow is formed vertically through the center of the upper surface of the sealing seat 204. When there is no water flow during the drainage period, the sealing ball 203 is sealed and fitted with the through hole 205 under the support of the sealing spring 202. When there is no water flow, the sealing spring 202 causes the sealing ball 203 to move down and fit into the through hole 205, which helps the residual water to collect in the collection tank 207 and then be discharged through the drain hole 208.

[0027] The sealing seat 204 is located between the through hole 205 and the collecting groove 207 and is provided with an inclined frustum 206 for guiding water. The collecting groove 207 is an inclined structure that collects water into the drain hole 208.

[0028] A set of drain valves 109 are installed inside the auxiliary drain pipe 108. The auxiliary drain pipe 108 is connected to the drain hole 208. The residual water is guided to the auxiliary drain pipe 108 through the drain hole 208. Then, the drain valves 109 are controlled to open the passage of the auxiliary drain pipe 108 to allow the residual water to be discharged.

[0029] The inner surface of the drainage end 103 is an inclined structure with the inner diameter of the left end being smaller than that of the right end, which is used to assist in the natural guidance of water flow during drainage.

[0030] Specifically, the inlet 101 of the three-way valve assembly 100 is connected to an external water inlet pipe, and the outlet 102 is connected to the inlet of the gas water heater. During normal use, the flow path switching handle 104 allows water to flow from the inlet 101 to the outlet 102. In low-temperature environments, when it is necessary to interrupt the water flow, the flow path switching handle 104 connects the outlet 102 to the drain 103. With no water flow, the sealing spring 202 causes the sealing ball 203 to move downwards and engage with the through hole 205. Residual water inside the three-way valve assembly 100 is collected in the collection tank 207 via the inclined frustum 206, and then guided to the drain hole 208 via the collection tank 207. Then, the drain valve 109 is controlled to open the auxiliary drain pipe 108 passage to allow the residual water to be discharged. The water inside the gas water heater flows from the outlet end 102 to the drain end 103. The inner side of the drain end 103 has an inclined structure with the inner diameter of the left end being smaller than that of the right end, which can assist the oblique discharge of water, thereby preventing the three-way valve assembly 100 from being damaged at low temperature.

[0031] Please see Figures 1-4 As a second embodiment of this utility model: A heating base 105 is fixedly connected to the left end of the middle position between the water inlet 101 and the water outlet 102. A set of heating chambers 106 are opened on the inner side of both the water inlet 101 and the water outlet 102. The heating chamber 106 is a spiral structure with heating tubes 107 inside. Both sets of heating tubes 107 are controlled by the heating base 105. In low-temperature environments, the heating base 105 activates the two symmetrically arranged heating tubes 107, so that the spiral heating chamber 106 transfers heat to the inside of the three-way valve assembly 100.

[0032] Based on the first embodiment described above, in a further low-temperature environment, the heating base 105 activates two symmetrically arranged electric heating tubes 107, causing the spiral heating chamber 106 to transfer heat to the inside of the three-way valve assembly 100, thereby improving the adaptability of the three-way valve assembly 100.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tee frost valve for a gas water heating appliance, comprising: The three-way valve assembly (100) is characterized in that: the three-way valve assembly (100) includes an inlet end (101), an outlet end (102), a drain end (103) and an auxiliary drain pipe (108). An outlet (102) is provided above the inlet (101). The inlet (101) and outlet (102) are in a straight line. A drain end (103) for draining water at low temperature is fixedly connected to the right end of the middle position of the inlet (101) and outlet (102). An auxiliary drain pipe (108) is fixedly connected to the lower right end of the inlet (101). An auxiliary component (200) for assisting drainage during low-temperature drainage is fixedly connected to the inner side of the water inlet end (101). The auxiliary component (200) includes a sealing seat (204), a collecting groove (207) and a drain hole (208). The upper surface of the sealing seat (204) is provided with a collecting groove (207) for collecting water. The upper surface of the collecting groove (207) is provided with a drain hole (208) at the center of the right end of the upper surface.

2. A three-way antifreeze valve for a gas-fired hot water device as described in claim 1, characterized in that: A channel switching handle (104) is provided at the rear end of the middle of the water inlet (101) and the water outlet (102). The auxiliary component (200) also includes a sealing seat (201). The sealing seat (201) is a connected structure and is fixedly installed on the upper inner side of the water inlet (101).

3. A three-way antifreeze valve for a gas-fired hot water device as described in claim 2, characterized in that: A sealing spring (202) is fixedly connected to the middle position below the sealing bracket (201), and a sealing ball (203) is fixedly connected below the sealing spring (202).

4. A three-way antifreeze valve for a gas-fired hot water device as described in claim 3, characterized in that: The sealing seat (204) has a through hole (205) formed vertically through the center of its upper surface for water flow. When there is no water flow during the drainage period, the sealing ball (203) is sealed and fitted with the through hole (205) under the support of the sealing spring (202).

5. A three-way antifreeze valve for a gas-fired hot water system as described in claim 4, characterized in that: The sealing seat (204) is located between the through hole (205) and the collecting groove (207) and is provided with an inclined frustum (206) for guiding water. The collecting groove (207) is an inclined structure that gathers water into the drain hole (208).

6. A three-way antifreeze valve for a gas-fired hot water system as described in claim 1, characterized in that: A set of drain valves (109) are installed inside the auxiliary drain pipe (108), and the auxiliary drain pipe (108) is connected to the drain hole (208).

7. A three-way antifreeze valve for a gas-fired hot water device as described in claim 6, characterized in that: The inner side of the drainage end (103) is an inclined structure with the inner diameter of the left end being smaller than that of the right end, and is used to assist in the natural flow of water during drainage.

8. A three-way antifreeze valve for a gas-fired hot water device as described in claim 1, characterized in that: A heating base (105) is fixedly connected to the left end of the middle position between the water inlet (101) and the water outlet (102). A heating chamber (106) is opened on the inner side of both the water inlet (101) and the water outlet (102). The heating chamber (106) is a spiral structure, and an electric heating tube (107) is provided inside the heating chamber (106). Both sets of electric heating tubes (107) are controlled by a heating base (105).

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