Water heater valve assembly

Abstract

The invention discloses a water heater valve assembly, comprising a water pipeline, a control valve, and a housing. The water pipeline and the control valve are integrated in the housing. The water pipeline comprises a main pipe and a tap water inlet pipe, a mixed water outlet pipe, and a hot water inlet pipe vertically arranged on the main pipe. The tap water inlet pipe and the hot water inlet pipe are connected to the main pipe, and the mixed water outlet pipe is not connected to the main pipe. A partition is arranged in the main pipe with the mixed water outlet pipe as a dividing line to separate a hot water circuit and a cold water circuit. The control valve comprises a mixing valve. A mixing valve seat is arranged at the junction of the mixed water outlet pipe and the main pipe. A first valve hole, a second valve hole, and a third valve hole are arranged at the bottom of the mixing valve seat, so that a valve cavity of the mixing valve is connected with the mixed water outlet pipe, the hot water circuit and the cold water circuit of the main pipe. Hot water and cold water are input into the mixed water outlet pipe through the valve hole under the control of the mixing valve. The mixing valve seat and the water pipeline are integrally injection molded. The water heater valve assembly is an integral injection molding structure, which is beautiful and occupies little space.

Description

Technical Field

[0001] The present invention relates to the technical field of common valves for water heaters, and more particularly to a valve assembly for water heaters. Background Art

[0002] A water heater is a commonly used household appliance. There are many types of water heaters on the market. The water heater equipment is large in size. The water heater is generally connected with water inlet pipes, water outlet pipes, components and various valve components. Several conduits and pipes are also required to connect various working components. It often takes up a large space during assembly, and the assembly is relatively troublesome. At present, the technology of water heaters on the market is constantly improving, but it still takes up a large space. The structure inside the water heater is complex and the assembly is relatively complicated. Once the water heater needs to be maintained, cumbersome maintenance steps are often required, and the overall appearance is relatively not beautiful, which affects the user's experience. Summary of the invention

[0003] The purpose of the present invention is to provide a water heater valve assembly, which has the advantages of compact structure, small space occupation, relatively simple process, beautiful appearance and convenient maintenance, so as to overcome the shortcomings of the prior art.

[0004] The present invention adopts the following technical solutions to achieve the above purpose:

[0005] A water heater valve assembly comprises a water pipeline, a control valve and a shell, wherein the water pipeline and the control valve are integrated in the shell, the water pipeline comprises a main pipe and a tap water inlet pipe, a mixed water outlet pipe and a hot water inlet pipe vertically arranged on the main pipe, the tap water inlet pipe and the hot water inlet pipe are connected to the main pipe, the mixed water outlet pipe is not connected to the main pipe, a partition is provided in the main pipe with the mixed water outlet pipe as a dividing line to separate the hot water circuit and the cold water circuit, the control valve comprises a mixing valve, a mixing valve seat is provided at the junction of the mixed water outlet pipe and the main pipe, a first valve hole, a second valve hole and a third valve hole are provided at the bottom of the mixing valve seat, so that the valve cavity of the mixing valve is connected with the mixed water outlet pipe, the hot water circuit and the cold water circuit of the main pipe, hot water and cold water are input into the mixed water outlet pipe through the valve hole under the control of the mixing valve, and the mixing valve seat is integrally injection molded with the water pipeline.

[0006] The shell includes a shell cover and a base, a support plate is arranged on the base, the main pipe is arranged on the support plate, the water pipeline also includes a water tank liner water supply pipe and a water tank coil water supply pipe, the tap water inlet pipe, the water tank liner water supply pipe, the water tank coil water supply pipe, the mixed water outlet pipe and the hot water inlet pipe are arranged vertically on the main pipe in sequence, the water tank liner water supply pipe is not connected with the main pipe, and the water tank coil water supply pipe is connected with the main pipe.

[0007] The control valve also includes a water supply valve. A water supply valve seat is provided at the junction of the water supply pipe in the water tank and the main pipe. A fourth valve hole and a fifth valve hole are provided at the bottom of the water supply valve seat, so that the valve cavity of the water supply valve is connected with the water supply pipe in the water tank and the cold water path of the main pipe. Cold water is input into the water supply pipe in the water tank through the valve hole under the control of the water supply valve.

[0008] The tap water inlet pipe passes through the main pipe and an extension pipe is arranged at the opposite end of the main pipe. A flow control column is detachably arranged in the extension pipe. The regulating end of the flow control column can reach the opening of the tap water inlet pipe in the main pipe to adjust the water flow.

[0009] A first valve cover is arranged on the valve seat of the mixing valve, a first valve core which cooperates with the first valve hole, the second valve hole and the third valve hole is arranged in the valve seat of the mixing valve, a first relay and a first gear are arranged on the first valve cover, an adjusting column of the first valve core passes through the first valve cover and cooperates with the through hole of the first gear, a first motor mounting seat is arranged at the junction of the main pipe and the water tank coil water supply pipe, a first motor is arranged on the first motor mounting seat, and a second gear which meshes with the first gear is connected to the first motor.

[0010] A second valve cover is arranged on the valve seat of the water supply valve, a second valve core which cooperates with the fourth valve hole and the fifth valve hole is arranged in the valve seat of the water supply valve, a second relay and a third gear are arranged on the second valve cover, an adjusting column of the second valve core passes through the second valve cover and cooperates with the through hole of the third gear, a second motor mounting seat is arranged at the junction of the main pipe and the extension pipe, a second motor is arranged on the second motor mounting seat, and a fourth gear which meshes with the third gear is connected to the second motor.

[0011] A water flow sensor mounting seat is provided on the outer wall of the tap water inlet pipe, so that the tap water inlet pipe has a cavity that can accommodate the water flow sensor. A reduced diameter pipe section is provided in the tap water inlet pipe, and the reduced diameter pipe section intersects with the inner cavity of the water flow sensor mounting seat.

[0012] A first water temperature detection seat is arranged on the water tank coil water supply pipe, and a second water temperature detection seat is arranged on the mixed water outlet pipe.

[0013] The base and the supporting plate, the branches of the water pipe, the valve seat of the mixing valve, the valve seat of the water supply valve, the first motor mounting seat, the second motor mounting seat, the water flow sensor mounting seat, the first water temperature detection seat and the second water temperature detection seat are an integral injection molding structure, and the shell cover is fixed on the base.

[0014] A power circuit board and a thermal fuse protector are arranged on the base.

[0015] The beneficial effects that can be achieved by the present invention using the above technical solution are:

[0016] 1) The tap water inlet pipe, the water tank inner tank water supply pipe, the water tank coil water supply pipe, the mixed water outlet pipe and the hot water inlet pipe of the water heater valve assembly of the present invention are parallel to each other and are arranged vertically on the main pipe in sequence, and then a mixing valve seat and a water valve hole connected to the relevant pipe wall are injection-molded on the wall surface at the junction of the mixed water outlet pipe and the main pipe, and a water supply valve seat and a water valve hole connected to the relevant pipe wall are injection-molded on the wall surface at the junction of the water tank inner tank water supply pipe and the main pipe, and corresponding motor mounting seats are injection-molded on the walls of the main pipe and other branch pipes, so that the whole inside the shell is an injection molding structure with a high degree of integration, a small component space occupation and a delicate and beautiful appearance.

[0017] 2) Compared with the conventional water heaters with intricate internal and external pipes and valves, the water heater valve assembly of the present invention simplifies the process, has a reasonable structure, effectively reduces the complexity of installation, is relatively convenient when maintenance is required, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the water heater valve assembly of the present invention.

[0019] Figure 2 It is an internal cross-sectional view of the water heater valve assembly of the present invention.

[0020] Figure 3 It is a schematic diagram of the mounting base of the water mixing valve and the water supply valve of the water heater valve assembly of the present invention.

[0021] Figure 4 The figure is a schematic diagram of assembling the mixing valve and the water supply valve of the water heater valve assembly of the present invention.

[0022] Figure 5 It is a three-dimensional schematic diagram of a water temperature detection seat, a water flow sensor mounting seat and a mounting plate of a water heater valve assembly of the present invention.

[0023] Explanation of the reference numerals: 1, shell cover, 11, pipe hole, 12, mounting hole, 13, first wire hole, 14, second wire hole, 15, third wire hole, 2, base, 21, support plate, 22, circuit board mounting column, 23, mounting plate, 231, first constriction part, 232, second constriction part, 24, thermal fuse protector mounting hole, 3, main pipe, 31, tap water inlet pipe, 311, extension pipe, 312, water flow sensor mounting seat, 32, water tank inner tank water supply pipe, 33, water tank coil water supply pipe, 331, first water temperature detection seat, 34, mixed water outlet pipe, 341, second water temperature detection seat, 35, hot water inlet Water pipe, 36, partition, 37, hot water circuit, 38, cold water circuit, 4, mixing valve, 41, water supply valve seat, 411, first valve hole, 412, second valve hole, 42, first valve cover, 43, first valve core, 44, first relay, 45, first gear, 46, first motor mounting seat, 461, first motor, 462, second gear, 5, water supply valve, 511, third valve hole, 512, fourth valve hole, 513, fifth valve hole, 52, second valve cover, 53, second valve core, 54, second relay, 55, third gear, 56, second motor mounting seat, 561, second motor, 562, fourth gear. DETAILED DESCRIPTION

[0024] The present technical solution is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1-5 As shown, the present invention discloses a water heater valve assembly, including a water pipe, a control valve, and a shell. The water pipe and the control valve are integrated in the shell. A pipe hole 11 is provided on the shell corresponding to the water pipe. One end of the water pipe is connected to a pipeline outside the shell through the pipe hole 11.

[0026] Furthermore, the shell body is assembled by a shell cover 1 and a base 2, and the pipe hole 11 is specifically arranged on the panel of the shell cover 1. The panel of the shell cover 1 is also provided with a mounting hole 12 fixed to the base 2 and a first wire hole 13, a second wire hole 14 and a third wire hole 15. The first wire hole 13 is used for power wire output, the second wire hole 14 is used for heating element power wire output, and the third wire hole 15 is used for water heater display wire output.

[0027] Furthermore, the water pipeline includes a main pipe 3, a tap water inlet pipe 31, a water tank inner tank water supply pipe 32, a water tank coil water supply pipe 33, a mixed water outlet pipe 34 and a hot water inlet pipe 35.

[0028] Furthermore, a circuit board mounting column 22 is provided on the base 2, and the power circuit board is fixed to the base 2 by screws. Relevant functional modules are placed on the power circuit board. A thermal cutout protector mounting hole 24 for installing a thermal cutout protector is also provided on the base 2. A support plate 21 is also provided upwardly on the base 2, and the main pipe 3 is horizontally arranged on the support plate 21. It can be understood that seals are provided at both ends of the main pipe 3 to prevent fluid leakage. The tap water inlet pipe 31, the water tank inner tank water supply pipe 32, the water tank coil water supply pipe 33, the mixed water outlet pipe 34 and the hot water inlet pipe 35 are parallel to each other and arranged vertically in sequence on the main pipe 3, and the control valve is arranged on the wall of the water pipe.

[0029] Furthermore, the water tank inner tank water supply pipe 32 and the mixed water outlet pipe 34 are not connected to the main pipe 3, the water tank coil water supply pipe 33 and the hot water inlet pipe 35 are connected to the main pipe 3, the bottom of the mixed water outlet pipe 34 extends into the main pipe 3, and a partition 36 is set in the main pipe 3 with the mixed water outlet pipe 34 as the dividing line to separate the hot water circuit 37 and the cold water circuit 38. It can be understood that the left side of the main pipe 3 with the mixed water outlet pipe 34 as the dividing line is the cold water circuit 38, and the right side is the hot water circuit 37.

[0030] Furthermore, the tap water inlet pipe 31 is connected to the tap water pipeline outside the shell, the water tank inner tank water supply pipe 32 is connected to the water tank pipeline of the water heater outside the shell and supplies cold water to the water tank inner tank, the water tank coil water supply pipe 33 is connected to the water tank coil pipeline of the water heater outside the shell and supplies cold water to the coil, the hot water inlet pipe 35 is connected to the water tank coil pipeline of the water heater, and the mixed water outlet pipe 34 is connected to the water use pipeline.

[0031] Furthermore, one end of the tap water inlet pipe 31 passes through the main pipe 3 and extends to the base 2 to abut against the base 2. The part of the tap water inlet pipe 31 between the main pipe 3 and the base 2 is set as an extension pipe 311. A detachable flow control column is set on the extension pipe 311. A threaded structure can be set between the extension pipe 311 and the flow control column. The flow control column and the extension pipe 311 cooperate to seal to prevent cold water leakage from the main pipe 3. When it is necessary to adjust the size of the water inlet flow, the flow control column can be twisted to extend the adjustment end of the flow control column into the main pipe 3 to adjust the size of the tap water flow flowing in from the tap water inlet pipe 31. The adjustment end of the flow control column is set to a cone.

[0032] The control valve includes a mixing valve 4 and a water supply valve 5. The mixing valve 4 and the water supply valve 5 adopt an electric valve structure. It can be understood that the electric valve is more flexible in assembly structure and has more reliable performance, so that more space can be saved in assembly. A mixing valve seat 41 extends on the wall surface of the connection between the mixing water outlet pipe 34 and the main pipe 3, and a water supply valve seat 51 extends on the wall surface of the connection between the water tank inner tank water supply pipe 33 and the main pipe 3. A first valve hole 4 is provided at the bottom of the mixing valve seat 41. 11. The second valve hole 412 and the third valve hole 413 enable the valve cavity of the mixing valve 4 to be connected with the mixing water outlet pipe 34, the hot water path 37 and the cold water path 38 of the main pipe 3, and the hot water and cold water are input into the mixing water outlet pipe 34 under the control of the mixing valve 4. The fourth valve hole 511 and the fifth valve hole 512 are arranged at the bottom of the valve seat 51 of the water supply valve, so that the water supply valve 5 is connected with the water supply pipe 32 in the water tank liner and the cold water path 38 of the main pipe 3, and the cold water is input into the water supply pipe 32 in the water tank liner under the control of the water supply valve 5.

[0033] Furthermore, a first valve cover 42 is fixed on the valve seat 41 of the mixing valve, and a first valve core 43 used in conjunction with the first valve hole 411, the second valve hole 412 and the third valve hole 413 is provided on the inner cavity of the valve seat 41 of the mixing valve, a first relay 44 is fixed on the first valve cover 42, and a first gear 45 is also provided on the first valve cover 42. The adjusting column of the first valve core 43 passes through the first valve cover 42 and cooperates with the through hole of the first gear 45. A first motor mounting seat 46 is provided on the wall surface of the junction between the main pipe 3 and the water tank coil water supply pipe 33, and a first motor 461 is fixed on the first motor mounting seat 46. The output shaft of the first motor 461 is connected to the second gear 462 meshing with the first gear 45.

[0034] Furthermore, a second valve cover 52 is fixed on the water supply valve seat 51, and a second valve core 53 used in conjunction with the fourth valve hole 511 and the fifth valve hole 512 is provided on the inner cavity of the water supply valve seat 51, a second relay 54 is fixed on the second valve cover 52, and a third gear 55 is also provided on the second valve cover 52. The adjusting column of the second valve core 53 passes through the second valve cover 52 and cooperates with the through hole of the third gear 55. A second motor mounting seat 56 is provided on the wall surface of the junction of the main pipe 3 and the extension pipe 311, and a second motor 561 is fixed on the second motor mounting seat 56. The output shaft of the second motor 561 is connected to the fourth gear 562 meshing with the third gear 55.

[0035] Furthermore, by controlling the mixing valve 4 to deliver cold water or hot water or mixed cold and hot water to the mixed water outlet pipe 34, and by controlling the water supply valve 5 to deliver flow or disconnect flow to the water tank inner tank water supply pipe 32, the first relay 44 controls the first motor 461 to reset, and the second relay 54 controls the second motor 561 to reset.

[0036] Furthermore, a water flow sensor mounting seat 312 is provided on the tap water inlet pipe 31, and the bottom of the water flow sensor mounting seat 312 is connected to the tap water inlet pipe 31. A water flow sensor for monitoring the flow is fixed on the water flow sensor mounting seat 312. The tap water inlet pipe 31 has a cavity that can accommodate the water flow sensor. A reduced diameter pipe section is provided in the tap water inlet pipe 31, and the reduced diameter pipe section intersects with the inner cavity of the water flow sensor mounting seat 312. It can be understood that the impact force of the water flow entering the tap water inlet pipe 31 is stronger, which reduces the starting energy of the water flow sensor and improves the working efficiency of the water flow sensor. When the water flow sensor and the water flow sensor mounting seat 312 are stained with water impurities, the flow control column can be removed and clean water impurities are cleaned from the extension tube 311 to the water flow sensor position with clean water and / or tools to avoid the water flow sensor being stuck by impurities, so that the water flow sensor can work normally.

[0037] Furthermore, a first water temperature detection seat 331 extends on the wall surface of the water tank coil water supply pipe 33, and a second water temperature detection seat 341 extends on the mixed water outlet pipe 34. The bottoms of the first water temperature detection seat 331 and the second water temperature detection seat 341 are provided with through holes connected to the water tank coil water supply pipe 33 and the mixed water outlet pipe 34, and temperature detectors are installed on the first water temperature detection seat 331 and the second water temperature detection seat 341 to detect the water temperature.

[0038] Furthermore, a mounting plate 23 is sleeved on the outer wall of one end of the tap water inlet pipe 31, the water tank inner tank water supply pipe 32, the water tank coil water supply pipe 33, the mixed water outlet pipe 34 and the hot water inlet pipe 35 close to the shell cover. The through hole on the mounting plate 23 is matched with the mounting hole 12, so that the shell cover 1 and the base 2 are fixedly installed. A first convergence portion 231 is provided on the mounting portion 23 at one end close to the tap water inlet pipe 31, and a second convergence portion 232 is provided on the mounting portion 22 at one end close to the hot water inlet pipe 35. The first convergence portion 231 and the second convergence portion 232 are used to converge and fix the power supply wires, so that the inside of the shell is organized and beautiful as a whole.

[0039] Furthermore, the base 2 and the supporting plate 21, the branches of the water pipe, the mixing valve seat 41, the water supply valve seat 51, the first motor mounting seat 46, the second motor mounting seat 56, the water flow sensor mounting seat 312, the first water temperature detection seat 331, the second water temperature detection seat 341 and the mounting plate 23 are an integral injection molding structure.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A water heater valve assembly, comprising a water pipe, a control valve, and a housing, characterized in that: The water pipeline and the control valve are integrated in the shell. The water pipeline includes a main pipe and a tap water inlet pipe, a mixed water outlet pipe, and a hot water inlet pipe arranged vertically on the main pipe. The tap water inlet pipe and the hot water inlet pipe are connected to the main pipe, and the mixed water outlet pipe is not connected to the main pipe. A partition is provided in the main pipe to separate the hot water circuit and the cold water circuit with the mixed water outlet pipe as a dividing line. The control valve includes a mixing valve. A mixing valve seat is provided at the junction of the mixed water outlet pipe and the main pipe. A first valve hole, a second valve hole, and a third valve hole are provided at the bottom of the mixing valve seat, so that the valve cavity of the mixing valve is connected with the mixed water outlet pipe, the hot water circuit and the cold water circuit of the main pipe. Hot water and cold water are controlled by the mixing valve through the valve The mixing water outlet pipe is input through the hole, and the mixing water valve seat is integrally injection molded with the water pipeline; the shell includes a shell cover and a base, a supporting plate is arranged on the base, and the main pipe is arranged on the supporting plate. The water pipeline also includes a water tank liner water supply pipe and a water tank coil water supply pipe. The tap water inlet pipe, the water tank liner water supply pipe, the water tank coil water supply pipe, the mixed water outlet pipe and the hot water inlet pipe are arranged vertically on the main pipe in sequence, the water tank liner water supply pipe is not connected to the main pipe, and the water tank coil water supply pipe is connected to the main pipe; the control valve also includes a water supply valve, a water supply valve seat is provided at the junction of the water tank liner water supply pipe and the main pipe, and the bottom of the water supply valve seat is provided with a fourth valve hole and a fifth valve hole , so that the valve cavity of the water supply valve is connected with the water supply pipe in the water tank and the cold water path of the main pipe, and the cold water is input into the water supply pipe in the water tank through the valve hole under the control of the water supply valve; the tap water inlet pipe passes through the main pipe and an extension pipe is arranged at the opposite end of the main pipe, and a flow control column is detachably arranged in the extension pipe, and the regulating end of the flow control column can reach the opening of the tap water inlet pipe in the main pipe to adjust the water flow; a first valve cover is arranged on the valve seat of the mixing valve, and a first valve core that cooperates with the first valve hole, the second valve hole and the third valve hole is arranged in the valve seat of the mixing valve, a first relay and a first gear are arranged on the first valve cover, and the regulating column of the first valve core passes through the first valve cover and is connected with the through hole of the first gear A first motor mounting seat is provided at the junction of the main pipe and the water supply pipe of the water tank coil, a first motor is provided on the first motor mounting seat, and a second gear meshing with the first gear is connected to the first motor; a second valve cover is provided on the valve seat of the water supply valve, a second valve core matching with the fourth valve hole and the fifth valve hole is provided in the valve seat of the water supply valve, a second relay and a third gear are provided on the second valve cover, an adjusting column of the second valve core passes through the second valve cover and matches with the through hole of the third gear, a second motor mounting seat is provided at the junction of the main pipe and the extension pipe, a second motor mounting seat is provided on the second motor, and a fourth gear meshing with the third gear is connected to the second motor.

2. The water heater valve assembly according to claim 1, characterized in that: A water flow sensor mounting seat is provided on the outer wall of the tap water inlet pipe, so that the tap water inlet pipe has a cavity that can accommodate the water flow sensor. A reduced diameter pipe section is provided in the tap water inlet pipe, and the reduced diameter pipe section intersects with the inner cavity of the water flow sensor mounting seat.

3. The water heater valve assembly according to claim 2, characterized in that: A first water temperature detection seat is arranged on the water tank coil water supply pipe, and a second water temperature detection seat is arranged on the mixed water outlet pipe.

4. The water heater valve assembly according to claim 3, characterized in that: The base and the supporting plate, the branches of the water pipe, the valve seat of the mixing valve, the valve seat of the water supply valve, the first motor mounting seat, the second motor mounting seat, the water flow sensor mounting seat, the first water temperature detection seat and the second water temperature detection seat are an integral injection molding structure, and the shell cover is fixed on the base.

5. The water heater valve assembly according to claim 4, characterized in that: A power circuit board and a thermal fuse protector are arranged on the base.

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