Electric water mixing switching valve

Abstract

The utility model discloses an electric water mixing switching valve which comprises a shell, two inlets and an outlet are formed in the shell, a motor is arranged at the top of the shell, an adjusting rod is fixed to an output shaft of the motor, a rotating piece is fixed to the lower portion of the adjusting rod, a notch is formed in the rotating piece, and a water inlet is formed in the shell. The shell is internally provided with a check ring, the check ring encloses the two inlets in the middle, an annular cavity is formed between the outer ring of the check ring and the shell, the annular cavity is communicated with the outlet, the top of the check ring is provided with a baffle, the baffle is internally provided with a partition plate, the check ring is divided into two cavities which are not communicated with each other, and the two cavities are communicated with each other through the partition plate. The two cavities are communicated with the two inlets respectively, the baffle seals an opening in the top of the check ring, a strip-shaped hole is formed in the baffle, the strip-shaped hole is communicated with the two cavities, and the rotating piece makes close contact with the baffle.

Description

Technical Field

[0001] The utility model relates to the technical field of electric water mixing valves, in particular to an electric water mixing switching valve. Background Art

[0002] Switching valves are widely used in household appliances. In complex water system, switching valves play a key role. They can switch different waterways according to specified requirements to meet the needs of integration. However, under the development trend of integration and intelligence, the demand for switching valves with water mixing function suitable for working under high water pressure and high water temperature is increasing.

[0003] The patent number of the electric three-way valve of the existing technical solution is CN201821360629.7, in which the ceramic moving valve core is close to the ceramic static valve core; the motor is fixed on the valve cover and the rotating shaft of the motor extends into the rotating shaft in the valve cover and is connected to the ceramic moving valve core through the connecting rod, and the motor can drive the ceramic moving valve core to rotate relative to the ceramic static valve core through the connecting rod. This technical solution does not have a limit device, which is not conducive to controlling the switching state and cannot ensure whether it is switched in place; at the same time, it does not have a water mixing function. Summary of the invention

[0004] The purpose to be solved by the utility model is to provide an electric water mixing switching valve, which ensures the stability and reliability of the switching process by setting a limit boss, a limit block and a spring, simplifies the structure, and realizes the controllable switching state; at the same time, a water mixing function is added, and the water temperature after the cold water and hot water are mixed can be automatically adjusted by optimizing the flow channel.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions: an electric water mixing switching valve, comprising a shell, the shell is provided with two inlets and one outlet, a motor is provided on the top of the shell, an adjusting rod is fixed on the output shaft of the motor, a rotating plate is fixed below the adjusting rod, a notch is provided on the rotating plate, a retaining ring is provided in the shell, the retaining ring surrounds the two inlets in the middle, an annular cavity is formed between the outer ring of the retaining ring and the shell, the annular cavity is communicated with the outlet, and the top of the retaining ring has a A baffle plate is provided inside the baffle plate, and the baffle ring is divided into two chambers which are not connected to each other. The two chambers are connected to one inlet respectively. The baffle plate seals the opening at the top of the baffle ring. A strip hole is provided on the baffle plate, and the strip hole is connected to both chambers. The rotating plate is in close contact with the baffle plate. When rotating to a specific angle, the notch matches with the strip hole. A limiting boss is provided on the adjusting rod, and a limiting block matching with the limiting boss is provided in the assembly hole on the shell body that matches with the adjusting rod. When in use, the two inlets are connected to hot water and cold water respectively, and the hot water and cold water enter the chamber. By starting the motor, the output shaft of the motor drives the adjusting rod to rotate, and the rotation of the adjusting rod drives the rotating plate to rotate. When the rotating plate rotates, the notch on it can be opposite to different positions of the strip hole on the baffle plate, so that different proportions of hot and cold water can be adjusted to come out of the strip hole, then enter the annular cavity, and then be discharged from the outlet. During the process, the rotation range of the rotating piece is determined by the limit boss and the limit block. When the motor rotates clockwise or counterclockwise to the junction of the limit boss and the limit block, only hot water or cold water should come out of the outlet. This type of water mixing valve simplifies the structure and realizes the controllable switching state by setting the limit boss and the limit block; at the same time, it adds the water mixing function, and the water temperature after the cold and hot water are mixed can be automatically adjusted by optimizing the flow channel.

[0006] In the above technical solution, preferably, a sealing ring is provided at the matching position between the adjusting rod and the assembly hole.

[0007] In the above technical solution, preferably, a protrusion is provided on the baffle, and a slot is provided on the retaining ring, and the protrusion is inserted into the slot.

[0008] In the above technical solution, preferably, the shell includes a valve body and an upper cover, the valve body and the upper cover are connected together by screws, the two inlets and one outlet are arranged on the valve body, and the motor is fixed on the upper cover.

[0009] In the above technical solution, preferably, joints are fixed on the two inlets.

[0010] In the above technical solution, preferably, it also includes a spring, wherein the spring is sleeved on the outer ring of the adjusting rod, and the two ends of the spring are respectively pressed against the adjusting rod and the rotating plate.

[0011] In the above technical solution, preferably, the upper cover is provided with a plurality of downwardly facing top blocks, and the top blocks are pressed tightly against the baffle.

[0012] Compared with the existing technology, a low-noise water discharge solenoid valve is adopted, which has the following advantages:

[0013] When the utility model is used, two inlets are connected to hot water and cold water respectively. Hot water and cold water enter the chamber. By starting the motor, the output shaft of the motor drives the adjusting rod to rotate. The rotation of the adjusting rod drives the rotating plate to rotate. When the rotating plate rotates, the notch on it can be relative to different positions of the strip holes on the baffle plate, so that different proportions of hot and cold water can be adjusted to come out of the strip holes, then enter the annular cavity, and then be discharged from the outlet. During the process, the rotation range of the rotating plate is determined by the limit boss and the limit block. When the motor rotates clockwise or counterclockwise to the junction of the limit boss and the limit block, only hot water or cold water should come out of the outlet. The water mixing valve of this structure simplifies the structure by setting the limit boss and the limit block, and realizes the controllable switching state; at the same time, it adds a water mixing function, and the water temperature after the cold and hot water are mixed can be automatically adjusted by optimizing the flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0016] Figure 2 It is a cross-sectional view of the utility model.

[0017] Figure 3 It is a three-dimensional exploded schematic diagram of the utility model. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to illustrate the technical solution of the present invention.

[0019] Further description is given, but the present invention is not limited to these embodiments.

[0020] See also Figures 1 to 3An electric water mixing switching valve includes a housing 1, the housing 1 is provided with two inlets 111 and one outlet 112, a motor 2 is provided on the top of the housing 1, the housing includes a valve body 11 and an upper cover 12, the valve body 11 and the upper cover 12 are connected together by screws, the two inlets 111 and one outlet 112 are provided on the valve body 11, and the motor 2 is fixed on the upper cover 12. Joints 11a are fixed on the two inlets 111.

[0021] An adjusting rod 21 is fixed on the output shaft of the motor 2. A rotating piece 3 is fixed below the adjusting rod 21, and a notch 31 is provided on the rotating piece 3.

[0022] The housing 1 has a retaining ring 13 therein, the retaining ring 13 surrounds two inlets 111 in the middle, an annular cavity 14 is formed between the outer ring of the retaining ring 13 and the housing 1 , and the annular cavity 13 is communicated with the outlet 112 .

[0023] The retaining ring 13 has a baffle plate 4 on the top, a convex block 42 on the baffle plate 4, a slot 13a on the retaining ring 13, and the convex block 42 is inserted into the slot 13a. Such a fixing method can prevent the baffle plate and the retaining ring from rotating relative to each other. The retaining ring 13 has a partition plate 131 inside, which divides the retaining ring 13 into two chambers 132 that are not connected to each other. The two chambers 132 are respectively connected to one of the inlets 111. The baffle plate 4 seals the opening at the top of the retaining ring 13. The baffle plate 4 has a strip hole 41, which is connected to both chambers 132.

[0024] The rotating piece 3 is in close contact with the baffle 4. When the rotating piece 3 is rotated to a specific angle, the notch 31 is matched with the strip hole 41. The adjusting rod 21 is provided with a limiting boss 211. The assembly hole 121 on the housing 1 that matches the adjusting rod 21 has a limiting block 122 that matches the two limiting bosses 211. The matching part between the adjusting rod 21 and the assembly hole 121 is provided with a sealing ring 22. There are two sealing rings 22 to form a double-layer seal.

[0025] The upper cover 12 is provided with a plurality of downwardly directed top blocks 122, which are pressed tightly against the baffle 4. The upper cover 12 also includes a spring 5, which is sleeved on the outer ring of the adjusting rod 21, and the two ends of the spring 5 are pressed against the adjusting rod 21 and the rotating sheet 3 respectively.

[0026] When in use, the two inlets are connected to hot water and cold water respectively. Hot water and cold water enter the chamber. By starting the motor, the output shaft of the motor drives the adjusting rod to rotate. The rotation of the adjusting rod drives the rotating plate to rotate. When the rotating plate rotates, the notch on it can be relative to the different positions of the strip holes on the baffle. In this way, different proportions of hot and cold water can be adjusted to come out of the strip holes, then enter the annular cavity, and then be discharged from the outlet. During the process, the rotation range of the rotating plate is determined by the limit boss and the limit block. When the motor rotates clockwise or counterclockwise to the junction of the limit boss and the limit block, only hot water or cold water should come out of the outlet. This structure of the mixing valve simplifies the structure by setting the limit boss and the limit block, and realizes the controllable switching state; at the same time, it adds a water mixing function, and the water temperature after the cold and hot water are mixed can be automatically adjusted by optimizing the flow channel.

Claims

1. An electric water mixing switching valve, comprising a housing, characterized in that: The shell is provided with two inlets and one outlet, the top of the shell is provided with a motor, an adjusting rod is fixed on the output shaft of the motor, a rotating sheet is fixed below the adjusting rod, a notch is provided on the rotating sheet, a circle of retaining ring is provided in the shell, the retaining ring surrounds the two inlets in the middle, an annular cavity is formed between the outer ring of the retaining ring and the shell, the annular cavity is communicated with the outlet, a baffle is provided on the top of the retaining ring, a partition is provided in the baffle, the retaining ring is divided into two chambers that are not communicated with each other, the two chambers are respectively communicated with one of the inlets, the baffle seals the opening at the top of the retaining ring, a strip hole is provided on the baffle, the strip hole is communicated with both the chambers, the rotating sheet is in close contact with the baffle, and when rotated to a specific angle, the notch cooperates with the strip hole, a limiting boss is provided on the adjusting rod, and a limiting block cooperating with the limiting boss is provided in the assembly hole on the shell that cooperates with the adjusting rod.

2. The electric water mixing switching valve according to claim 1, characterized in that: A sealing ring is arranged at the matching position between the adjusting rod and the assembling hole.

3. The electric water mixing switching valve according to claim 1, characterized in that: The baffle is provided with a protrusion, and the retaining ring is provided with a slot, and the protrusion is inserted into the slot.

4. The electric water mixing switching valve according to claim 1, characterized in that: The housing comprises a valve body and an upper cover, wherein the valve body and the upper cover are connected together by screws, the two inlets and one outlet are arranged on the valve body, and the motor is fixed on the upper cover.

5. The electric water mixing switching valve according to claim 4, characterized in that: Joints are fixed on the two inlets.

6. The electric water mixing switching valve according to claim 5, characterized in that: It also includes a spring, which is sleeved on the outer ring of the adjusting rod, and the two ends of the spring are respectively pressed against the adjusting rod and the rotating piece.

7. The electric water mixing switching valve according to claim 6, characterized in that: The upper cover is provided with a plurality of downwardly facing top blocks, and the top blocks are pressed tightly against the baffle.

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