A cross-shaped automatic switch valve for water heater

Abstract

The present invention discloses a cross-shaped automatic switch valve for a water heater, comprising a hot water valve and a cold water valve, characterized in that the hot water valve and the cold water valve are both cross-shaped, the left end of the hot water valve is a hot water inlet, the lower end is a hot water outlet, the right end is a hot water valve pressure transmission port, and a one-way valve is arranged inside the hot water inlet port. The right end of the cold water valve is a cold water outlet, the lower end is a cold water inlet, the left end is a cold water valve pressure transmission port, and a check rod device is arranged inside the cold water valve pressure transmission port. After the present invention is installed, the cold water supply switch state of the water heater is completely remotely and automatically controlled by the hot water outlet switch on the hot water use terminal at the user's home. As long as the user turns off the hot water outlet of the hot water use terminal, the present invention automatically turns off the cold water supply of the water heater, and the user turns on the hot water outlet of the hot water use terminal, the present invention automatically turns on the cold water supply of the water heater, which is very convenient for the user to use, and there is no need to manually switch and control water use.

Description

Technical Field

[0001] The present invention belongs to the technical field of valves for water heater installation pipelines, and specifically relates to a cross-shaped automatic switch valve that can be widely used in water heater products, hereinafter referred to as: water heater cross-shaped automatic switch valve. Background Art

[0002] When users install hot water heating devices such as gas water heaters and electric water heaters (hereinafter referred to as water heaters), for the safety of water use at home and the convenience of future product maintenance, it is necessary to install water control valves (i.e. ordinary angle valves on the market) on the cold water pipe outlet and hot water pipe inlet reserved on the wall. After the water heater is used up or when the product is repaired, the valve needs to be closed for water supply, and the valve needs to be opened for water supply when the water heater is used. Ordinary angle valves on the market require users to manually control the switch, which is very inconvenient for users to use. If there is a valve that can achieve the following functions: that is, the valve automatically opens the water supply when the user uses the water heater, and the valve automatically closes the water supply when the water heater is used up or the water heater needs maintenance, it can greatly provide users with convenience and safety benefits. Summary of the invention

[0003] The object of the present invention is to provide a cross-shaped automatic switch valve for a water heater to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the main technical solution of the present invention is to provide a cross-shaped automatic switch valve for water heaters, including a hot water valve and a cold water valve. The feature is that both the hot water valve and the cold water valve are cross-shaped. The left end of the hot water valve is a hot water inlet, the lower end is a hot water outlet, the right end is a hot water valve pressure transmission port, and a one-way valve is provided inside the hot water inlet port. The right end of the cold water valve is a cold water outlet, the lower end is a cold water inlet, the left end is a cold water valve pressure transmission port, and a check rod device is provided inside the cold water valve pressure transmission port.

[0005] In some embodiments, the check rod device includes a lower opening, a check rod, a spring, an assembly shell, a piston disc and a first retaining spring. The lower opening is arranged on the right side of the check rod. A cold water channel opening is provided on the right side of the lower opening and is connected to the cold water outlet. The check rod, the piston disc and the first retaining spring are all arranged in the assembly shell. The piston disc is arranged on the left side of the check rod. The first retaining spring is arranged on the left side of the piston disc. The check rod passes through the piston disc and is connected to the first retaining spring. The spring is sleeved on the check rod.

[0006] In some embodiments, a filter screen and a second retaining spring are sequentially provided on one side of the assembly housing close to the pressure transmission port of the cold water valve, and a second retaining spring is provided on one side of the one-way valve close to the hot water inlet.

[0007] In some embodiments, O-rings are provided between the lower opening and the cold water channel opening, between the check rod and the lower opening, and between the assembly shell and the contact surface of the cavity wall. The O-rings strengthen the seal to prevent water leakage.

[0008] In some embodiments, a handwheel cover is provided at the upper end of the hot water valve and the cold water valve, and an O-ring is provided between the handwheel cover and the main housing of the hot water valve and the cold water valve. The O-ring only serves to seal and fix the handwheel cover and the main housing.

[0009] In some embodiments, the hot water inlet of the hot water valve and the cold water outlet of the cold water valve are connected to the hot water outlet and the cold water inlet of the water heater through pipelines respectively.

[0010] In some embodiments, the water heater is any one of a gas water heater, an electric water heater, an air energy water heater and a flat-plate solar water heater.

[0011] In some embodiments, the hot water outlet of the hot water valve is connected to the hot water use terminal through a hot water pipeline, and the cold water inlet of the cold water valve is connected to the cold water supply pipeline.

[0012] In some embodiments, the hot water valve pressure transmission port of the hot water valve and the cold water valve pressure transmission port of the cold water valve are communicated with each other through a connecting pipe.

[0013] The beneficial effect of the present invention is that the check rod of the present invention has a special design of reverse cold water seepage, and the design amount of reverse cold water seepage is to ensure that it does not affect the normal outlet temperature of hot water used by users. Through reverse cold water seepage, even if the water heater has leaked, as long as the user turns off the hot water use terminal, the hot water outlet water pressure, the P3 end water pressure, the P2 end water pressure, and the P1 end water pressure can be finally equalized through the reverse cold water seepage design (see P1, P2, P3 Figure 3 The check rod moves to the right under the reverse pressure of the spring, closing the cold water inlet and stopping the supply of cold water to the water heater.

[0014] The product of the present invention can replace the common angle valve products on the market and be installed on the cold water outlet and hot water inlet on the user's wall respectively, and then connected to the water heater through the installation pipeline. After the present invention is installed, the cold water supply switch state of the water heater is completely remotely and automatically controlled by the hot water outlet switch on the hot water use terminal in the user's home. As long as the user turns off the hot water outlet of the hot water use terminal, the present invention automatically turns off the cold water supply of the water heater. When the user turns on the hot water outlet of the hot water use terminal, the present invention automatically turns on the cold water supply of the water heater, which is very convenient for the user to use, and there is no need to manually switch to control water use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1is a schematic diagram of the structure of the first embodiment of the present invention,

[0016] Figure 2 is an exploded view of the first embodiment of the present invention,

[0017] Figure 3 is a schematic diagram of the working principle of the first embodiment of the present invention,

[0018] Figure 4 is a schematic diagram of the working principle of the second embodiment of the present invention,

[0019] In the figure: hot water valve 1, cold water valve 2, hot water inlet 3, hot water outlet 4, hot water valve pressure transmission port 5, one-way valve 6, cold water outlet 7, cold water inlet 8, cold water valve pressure transmission port 9, check rod device 10, lower port 11, check rod 12, spring 13, assembly shell 14, piston disc 15, first retaining spring 16, filter screen 17, second retaining spring 18, cold water channel port 19, handwheel cover 20. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0021] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0023] In the attached Figure 3 The P1 end, P2 end, and P3 end are marked for ease of description.

[0024] Embodiment 1:

[0025] like Figure 1As shown, a cross-shaped automatic switch for water heaters described in this embodiment includes a hot water valve 1 and a cold water valve 2. The hot water valve 1 and the cold water valve 2 are both cross-shaped, and the cross-shaped refers to two interconnected pipes that are perpendicular to the center. The left end of the hot water valve 1 is a hot water inlet 3, the lower end is a hot water outlet 4, and the right end is a hot water valve pressure transmission port 5. A one-way valve 6 is provided inside the hot water inlet 3. The right end of the cold water valve 2 is a cold water outlet 7, the lower end is a cold water inlet 8, and the left end is a cold water valve pressure transmission port 9. A check rod device 10 is provided inside the cold water valve pressure transmission port 9.

[0026] like Figure 2 As shown, the check rod device 10 includes a lower opening 11, a check rod 12, a spring 13, an assembly shell 14, a piston disc 15 and a first retaining spring 16. The lower opening 11 is arranged on the right part of the check rod 12, the check rod 12, the piston disc 15 and the first retaining spring 16 are all arranged in the assembly shell 14, the piston disc 15 is arranged on the left part of the check rod 12, the first retaining spring 16 is arranged on the left part of the piston disc 15, the check rod 12 passes through the piston disc 15 and is connected with the first retaining spring 16, and the spring 13 is sleeved on the check rod 12.

[0027] As an improved specific implementation, a filter screen 17 and a second retaining spring 18 are provided in sequence on the side of the assembly housing 14 close to the cold water valve pressure transmission port 9 , and a second retaining spring 18 is provided on the side of the one-way valve 6 close to the hot water inlet 3 .

[0028] As an improved specific implementation, O-rings are provided between the lower port 11 and the cold water channel port 19, between the check rod 12 and the lower port 11, and between the assembly shell 14 and the contact surface of the cavity wall. The O-rings strengthen the seal and prevent water leakage.

[0029] As an improved specific implementation, a hand wheel cover 20 is provided at the upper end of the hot water valve 1 and the cold water valve 2, and an O-ring is provided between the hand wheel cover 20 and the main housing of the hot water valve 1 and the cold water valve 2. The O-ring only seals and fixes the hand wheel cover and the main housing. After the hand wheel cover 20 is opened, a quick opening valve core can be installed at the upper end of the hot water valve 1 and the cold water valve 2 according to customer needs, and the valve can be quickly closed by manually controlling the quick opening valve core.

[0030] The hot water inlet 3 of the hot water valve 1 and the cold water outlet 7 of the cold water valve 2 are connected to the hot water outlet and the cold water inlet of the water tank of the water heater through pipelines respectively.

[0031] It is worth mentioning that the water heater is any one of the closed pressurized hot water heating devices such as gas water heater, electric water heater, air energy water heater, flat-plate solar water heater, etc.

[0032] Furthermore, the hot water valve pressure transmission port 5 of the hot water valve 1 is communicated with the cold water valve pressure transmission port 9 of the cold water valve 2 through a connecting pipeline.

[0033] Function of the one-way valve 6: When the hot water terminal is closed, it prevents the internal water pressure from leaking out in the opposite direction. Due to the function of the one-way valve 6, when the hot water terminal is closed, it ensures that the hot water outlet water pressure, the water pressure at the P3 end, the water pressure at the P2 end, and the water pressure at the P1 end will not be released in the opposite direction through the hot water inlet in the event of a water heater tank leak (see P1, P2, P3). Figure 3 The check rod 12 is moved inwards under the reverse pressure of the spring 13 to close the cold water channel 19 and stop supplying cold water to the water heater.

[0034] like Figure 3 As shown, when the product device of the present invention is in use, the hot water outlet 4 of the hot water valve is installed at the inlet of the hot water pipeline reserved in the wall of the user's home, and is communicated with the hot water use terminal of the user's hot water use terminal (such as: faucet, mixing valve, shower faucet, etc.) through the hot water pipeline. The cold water inlet 8 of the cold water valve is installed at the outlet of the cold water pipeline reserved in the wall of the user's home and is communicated with the cold water supply pipeline. The hot water inlet 3 of the hot water valve is connected to the hot water outlet of the water heater through a water pipe, and the cold water outlet 7 of the cold water valve is connected to the cold water inlet of the water heater through a water pipe. The pressure transmission port 5 of the hot water valve is connected to the pressure transmission port 9 of the cold water valve through a water pipe.

[0035] When the user opens the hot water terminal, hot water flows out from the hot water outlet 4 of the hot water valve, and the water pressure at the hot water outlet 4 is relieved. The water pressure at the P3 and P2 ends is the same and the pressure is relieved at the same time. The water pressure at the P1 end is the same as the tap water pressure. The water pressure at the P1 end is greater than the sum of the water pressure at the P2 end and the reverse pressure of the spring 13. The check rod 12 moves outward toward the P2 direction, opening the cold water channel port 19. The cold water is supplied to the water heater through the cold water inlet 8, the check rod 12, the cold water channel port 19, and the cold water outlet 7. The water heater works and heats, and the cold water is heated to become hot water. The hot water passes through the hot water inlet 3, the one-way valve 6, and the hot water outlet 4, and finally reaches the user's hot water terminal.

[0036] When the user turns off the hot water terminal, the water at the hot water outlet 4 stops flowing, and finally the water pressure at the hot water outlet 4, the water pressure at the P3 end, the water pressure at the P2 end, and the water pressure at the P1 end are equal to the water pressure of the tap water. The water pressure at both ends of the check rod 12 is balanced, and under the reverse pressure of the spring 13, the check rod 12 moves to the right, closing the cold water channel 19, and stopping the supply of cold water to the water heater.

[0037] The check rod 12 of the present invention has a special design for reverse cold water seepage, and the design amount of reverse cold water seepage is to ensure that it does not affect the normal outlet temperature of hot water used by users. Through reverse cold water seepage, even if the water heater has leaked, as long as the user turns off the hot water use terminal, the water pressure at the hot water outlet 4, the water pressure at the P3 end, the water pressure at the P2 end, and the water pressure at the P1 end can be finally equalized through the reverse cold water seepage design, ensuring that the water pressure at both ends of the inner and outer sides of the check rod 12 is balanced. Under the reverse pressure of the spring 13, the check rod 12 moves inward, closes the cold water inlet channel 19, and stops supplying cold water to the water heater.

[0038] The present invention is installed on the cold water outlet and the hot water inlet on the user's wall, and is connected to the water heater through a pipeline. It can realize remote automatic control of the cold water supply of the water heater according to the hot water outlet switch status of the user's hot water usage terminal, bringing great convenience and safety benefits to the user.

[0039] Embodiment 2:

[0040] like Figure 4 As shown, the structure of the present invention is the same as that of embodiment 1. Embodiment 1 is connected to a gas water heater and installed, while this embodiment is connected to an electric water heater. Its installation connection method and working principle are similar to those of embodiment 1, and reference may be made to the contents described in the above embodiment 1.

[0041] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A cross-shaped automatic switch valve for a water heater, comprising a hot water valve (1) and a cold water valve (2), characterized in that: The hot water valve (1) and the cold water valve (2) are both cross-shaped. The left end of the hot water valve (1) is a hot water inlet (3), the lower end is a hot water outlet (4), and the right end is a hot water valve pressure transmission port (5). A one-way valve (6) is provided inside the hot water inlet (3). The right end of the cold water valve (2) is a cold water outlet (7), the lower end is a cold water inlet (8), and the left end is a cold water valve pressure transmission port (9). A check rod device (10) is provided inside the cold water valve pressure transmission port (9). The check rod device (10) comprises a lower opening (11), a check rod (12), a spring (13), an assembly shell (14), a piston disc (15) and a first retaining spring (16); the lower opening (11) is arranged on a side of the check rod (12) close to the cold water outlet (7); a cold water channel opening (19) connected to the cold water outlet (7) is arranged on the right side of the lower opening (11); the check rod (12), the piston disc (15) and the first retaining spring (16) are all arranged in the assembly shell (14); the piston disc (15) is arranged on a side of the check rod (12) close to the cold water valve pressure transmission port (9); the first retaining spring (16) is arranged on a side of the piston disc (15) close to the cold water valve pressure transmission port (9); the check rod (12) passes through the piston disc (15) and is connected to the first retaining spring (16); and the spring (13) is sleeved on the check rod (12); The hot water inlet (3) of the hot water valve (1) and the cold water outlet (7) of the cold water valve (2) are respectively connected to the water heater via pipelines; the hot water valve pressure transmission port (5) of the hot water valve (1) and the cold water valve pressure transmission port (9) of the cold water valve (2) are communicated via a connecting pipeline; When the user turns on the hot water terminal, hot water flows out from the hot water outlet of the hot water valve, the water pressure at the hot water outlet is relieved, and the water pressures at the hot water valve pressure transmission port (5) and the cold water valve pressure transmission port (9) are the same and are also relieved at the same time. The water pressure on the cold water pressure side of the piston disc is the same as the tap water pressure, and the water pressure on the cold water pressure side of the piston disc is greater than the sum of the water pressure at the cold water valve pressure transmission port (9) and the reverse pressure of the spring. The check rod moves outward toward the cold water valve pressure transmission port (9), opening the cold water channel port. Cold water flows through the cold water inlet, the check rod, the cold water channel port, and the cold water outlet to supply cold water to the water heater. The water heater works and heats the water, and the cold water is heated to become hot water. The hot water flows through the hot water inlet, the one-way valve, and the hot water outlet, and finally reaches the user's hot water terminal. When the user turns off the hot water terminal, the water at the hot water outlet stops flowing. Eventually, the water pressure at the hot water outlet, the water pressure at the hot water valve pressure transmission port (5), the water pressure at the cold water valve pressure transmission port (9), and the water pressure on the cold water pressure side of the piston disc are all equal to the tap water pressure. The water pressures at both ends of the check rod are balanced. Under the reverse pressure of the spring, the check rod moves to the right, closing the cold water channel port and stopping the supply of cold water to the water heater.

2. The cross-shaped automatic switch valve for water heater according to claim 1, characterized in that: The assembly housing (14) is provided with a filter screen (17) and a second retaining spring (18) in sequence on the side close to the cold water valve pressure transmission port (9), and the one-way valve (6) is provided with a second retaining spring (18) on the side close to the hot water inlet (3).

3. The cross-shaped automatic switch valve for water heater according to claim 1, characterized in that: O-rings are provided between the lower opening (11) and the cold water channel opening (19), between the check rod (12) and the lower opening (11), and between the assembly shell (14) and the contact surface of the cavity wall.

4. The cross-shaped automatic switch valve for water heater according to any one of claims 1 to 3, characterized in that: The upper ends of the hot water valve (1) and the cold water valve (2) are both provided with a hand wheel cover (20), and an O-ring is provided between the joints between the hand wheel cover (20) and the main housings of the hot water valve (1) and the cold water valve (2).

5. The cross-shaped automatic switch valve for water heater according to claim 1, characterized in that: The water heater is any one of a gas water heater, an electric water heater, an air energy water heater and a flat-plate solar water heater.

6. The cross-shaped automatic switch valve for water heater according to claim 1, characterized in that: The hot water outlet (4) of the hot water valve (1) is connected to a hot water use terminal via a hot water pipeline, and the cold water inlet (8) of the cold water valve (2) is connected to a cold water supply pipeline.

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