A dishwasher waterway switching valve

Abstract

The utility model discloses a dish-washing machine water route switch valve, including upper shell and lower shell, its characterized in that: upper shell has an upper cavity part of one end opening, lower shell has a lower cavity part of one end opening, and the upper shell is installed with the pivot between lower shell, and the pivot is installed with the rotor on, and the rotor is located in the cavity after the combination of upper cavity part and lower cavity part, and the upper shell is provided with rotor mounting hole no.

Description

Technical Field

[0001] This utility model relates to the field of dishwashers, and in particular to a dishwasher water circuit switching valve. Background Technology

[0002] Dishwashers typically have multiple layers for loading dishes, and the water output from the washing pump is also divided into multiple pipes, such as the top spray arm water line, the middle spray arm water line, and the bottom spray arm water line, which are used to wash dishes in the top, middle, and bottom baskets, respectively. In order to better concentrate water power to wash dishes in a certain area and achieve layered washing, which is beneficial for saving water and electricity, it is necessary to temporarily close some water lines and only open others during the washing process, realizing the water line switching function. This requires a washing water line switching device to be installed in the dishwasher. The current technology uses motors to change the position of the sealing components in the water. By controlling different motors, different water lines are controlled, thereby realizing the switching of washing water lines. However, because multiple motors are used and the water distribution positions need to be precisely adjusted by the program to determine each water distribution position, noise is easily generated. At the same time, supporting software is required to control the start and stop positions of the water distribution valves. The requirements for position adjustment are high, and software failures are more likely to occur. The cost and failure rate are both high. Utility Model Content

[0003] This utility model discloses a dishwasher water circuit switching valve to overcome the shortcomings of the prior art.

[0004] To solve the above problems, the technical solution of this utility model is:

[0005] A dishwasher water circuit switching valve includes an upper shell and a lower shell. The upper shell has an upper cavity portion with one end open, and the lower shell has a lower cavity portion with one end open. A rotating shaft is installed between the upper and lower shells, and a rotor is installed on the rotating shaft. The rotor is located in the cavity formed by the combination of the upper and lower cavity portions. The upper shell is provided with a rotor mounting hole one, the lower shell is provided with a rotor mounting hole two, and the rotor is provided with a rotor mounting hole three. The rotating shaft is installed on rotor mounting holes one, two, and three. At least two upper water outlets are distributed in a fan shape around the bottom of the upper cavity portion around the rotating shaft. Upper guide teeth are evenly distributed around the bottom of the upper cavity portion around the rotating shaft, and lower guide teeth are evenly distributed around the bottom of the lower cavity portion around the rotating shaft. A water inlet connected to the outside is provided on the side of the lower cavity portion. Upper and lower guide teeth are evenly distributed around the rotating shaft on the rotor. A water outlet cover plate is also provided on the rotor.

[0006] The upper guide tooth, lower guide tooth, upper rotor guide tooth, and lower rotor guide tooth all have a guide slope. The guide slopes on the upper guide tooth and the upper rotor guide tooth are in opposite directions and mesh with each other. The guide slopes on the lower guide tooth and the lower rotor guide tooth are in opposite directions and mesh with each other. As the rotor rotates, under the action of the meshing of the guide slopes, the rotor can move up and down while rotating.

[0007] The number of upper guide teeth and lower guide teeth is the same.

[0008] The angle at which the upper and lower guide teeth are evenly distributed is the same as the distribution angle of the multiple upper water outlets, and there is one position on the entire circumference where the upper water outlets are evenly distributed without an upper water outlet.

[0009] The arrangement angle between the upper and lower rotor guide teeth is half the arrangement angle of two adjacent upper rotor guide teeth.

[0010] The aforementioned outlet cover can only completely cover one upper outlet.

[0011] The rotor has three upper guide teeth and three lower guide teeth, two upper water outlets with an angle difference of 120 degrees, and an angle difference of 60 degrees between the upper and lower guide teeth.

[0012] The rotor is provided with a vertical plate along the axial direction of the rotor mounting hole three. The water inlet direction is tangent to the rotation circumference of the rotor. The vertical plate of the rotor can rotate under the impact of the water flow.

[0013] A magnetic sensor is fixed to the outside of the lower shell, and a magnet is fixed to the rotor. The magnetic sensor senses the position of the rotor by sensing the position of the magnet.

[0014] The beneficial effects of this invention are as follows: This invention is equipped with a dishwasher water circuit switching valve, which realizes the water separation effect during the washing process through a mechanical structure. The flow of water provides the power for the rotor to rotate, and while rotating, it selects different positions to discharge water evenly and regularly, which greatly reduces the cost and a series of reliability problems caused by electrical components. At the same time, due to the stability of the mechanical structure in controlling the water separation position, the risk of inaccurate water separation is also reduced. Attached Figure Description

[0015] Figure 1 This is an exploded view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the upper shell structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the lower shell structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the rotor structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the rotor structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the rotor structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the rotor structure of this utility model;

[0022] Figure 8 This is a schematic diagram of the rotor structure of this utility model;

[0023] Figure 9 This is a schematic diagram of the rotor structure of this utility model;

[0024] Figure 10 This is a schematic diagram of the rotor structure of this utility model;

[0025] In the diagram: 1-Upper shell, 2-Lower shell, 3-Shaft, 4-Rotor, 5-Magnet, 6-Magnetic sensor, 10-Guide slope, 11-Upper outlet, 13-Upper guide tooth, 14-Rotor mounting hole one, 17-Upper cavity, 21-Inlet, 23-Lower guide tooth, 24-Rotor mounting hole two, 27-Lower cavity, 41-Rotor upper guide tooth, 42-Outlet cover plate, 43-Rotor lower guide tooth, 44-Rotor mounting hole three, 45-Vertical plate. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. In order to make the purpose, technical solution and advantages of this utility model clearer, the technical solution of this utility model will be described in detail below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of this utility model.

[0027] See appendix Figure 1-10This utility model includes an upper shell 1 and a lower shell 2. The upper shell 1 has an upper cavity portion 17 with one end open, and the lower shell 2 has a lower cavity portion 27 with one end open. A rotating shaft 3 is installed between the upper shell 1 and the lower shell 2, and a rotor 4 is installed on the rotating shaft 3. The rotor 4 is located in the cavity formed by the combination of the upper cavity portion 17 and the lower cavity portion 27. The upper shell 1 is provided with a rotor mounting hole 14, the lower shell 2 is provided with a rotor mounting hole 24, and the rotor 4 is provided with a rotor mounting hole 43. The rotating shaft 3 is installed in the rotor mounting hole 1. 14. On rotor mounting hole 24 and rotor mounting hole 3, at least two upper water outlets 11 are distributed in a fan shape around the bottom of the upper cavity 17 around the rotating shaft 3. Upper guide teeth 13 are evenly distributed around the bottom of the upper cavity 17 around the rotating shaft 3. Lower guide teeth 23 are evenly distributed around the bottom of the lower cavity 27 around the rotating shaft 3. A water inlet 21 connected to the outside is provided on the side of the lower cavity 27. Rotor 4 has upper guide teeth 41 and lower guide teeth 43 evenly distributed around the rotating shaft 3. A water outlet cover plate 42 is also provided on rotor 4.

[0028] The upper guide tooth 13, lower guide tooth 23, upper rotor guide tooth 41, and lower rotor guide tooth 43 all have a guide slope 10. The guide slopes on the upper guide tooth 13 and the upper rotor guide tooth 41 are in opposite directions and mesh with each other. The guide slopes on the lower guide tooth 23 and the lower rotor guide tooth 43 are in opposite directions and mesh with each other. As the rotor 4 rotates, under the meshing action of the guide slopes 10, the rotor 4 can move up and down while rotating.

[0029] The number of upper guide teeth 13 and lower guide teeth 23 is the same.

[0030] The angle at which the upper guide teeth 13 and the lower guide teeth 23 are evenly distributed is the same as the angle at which the multiple upper water outlets 11 are distributed. Furthermore, on the entire circumference of the evenly distributed upper water outlets 11, there is one position where no upper water outlet 11 is provided.

[0031] The arrangement angle between the upper rotor guide tooth 41 and the lower rotor guide tooth 43 is half the arrangement angle of the two adjacent upper rotor guide teeth 41.

[0032] The outlet cover 42 can only completely cover one upper outlet 11.

[0033] The number of upper guide teeth 13 and lower guide teeth 23 are three each, the number of upper water outlets 11 is two, and the arrangement angle of the two upper water outlets 11 differs by 120 degrees. The arrangement angle of the rotor upper guide teeth 41 and rotor lower guide teeth 43 differs by 60 degrees.

[0034] The rotor 4 is provided with a vertical plate 45 along the axial direction of the rotor mounting hole 3 44. The water inlet 21 is tangent to the rotation circumference of the rotor 4. The vertical plate 45 of the rotor 4 can rotate under the impact of the water flow.

[0035] A magnetic sensor 6 is fixed to the outside of the lower shell 2, and a magnet 5 is fixed to the rotor 4. The magnetic sensor 6 senses the position of the rotor 4 by sensing the position of the magnet 5.

[0036] In practical applications, the switching valve is divided into two parts, referred to as the upper shell 1 and the lower shell 2. The upper shell 1 can be a separate component or integrated with the dishwasher base, water cup, or other components. The upper shell 1 has an upper cavity 17 with one end open. At least two upper water outlets 11 are distributed in a fan shape around the bottom of the upper cavity 17 around the rotating shaft 3. The upper shell 1 also has upper guide teeth 13. The lower shell 2 has lower guide teeth 23 and a water inlet 21. A magnetic sensor is fixed on the outside of the lower shell 2, and a magnet 5 is fixed on the rotor 4. The upper guide teeth 13, lower guide teeth 23, upper rotor guide teeth 41, and lower rotor guide teeth 43 all have a guide slope 10. The guide slopes on the upper guide teeth 13 and the upper rotor guide teeth 41 are in opposite directions and mesh with each other. The guide slopes on the lower guide teeth 23 and the lower rotor guide teeth 43 are in opposite directions and mesh with each other. As the rotor 4 rotates, due to the meshing action of the guide slopes 10, the rotor 4 can move up and down while rotating at a certain angle.

[0037] Before starting the washing pump, such as Figure 6 Rotor 4 falls naturally, and the lower guide tooth 43 of the rotor meshes with the lower guide tooth 23. After the washing pump starts, as... Figure 7 The high-speed water flow propels the rotor 4 upward. Before the lower guide tooth 43 of the rotor completely disengages from the height range of the lower guide tooth 23 of the lower shell 2, the upper guide tooth 41 of the rotor has already entered the height range of the upper guide tooth 13 of the upper shell 1 and continues to move upward. Figure 8 The upper guide teeth 41 and 13 of the rotor gradually mesh until the meshing is complete, achieving a certain angle of rotation. When the washing pump stops working, the rotor 4 sinks vertically, the lower guide teeth begin to mesh, and the rotor 4 rotates. Figure 9 Rotor 4 continues to sink and rotate into position, as... Figure 10At this point, a cycle is completed. The upper and lower guide teeth are staggered at a certain angle. The preferred solution is that when there are 3 guide teeth on both the upper and lower sides, the upper guide teeth and the lower guide teeth are staggered by 60 degrees. In this way, each upward and downward movement can make the rotor rotate 60 degrees. Therefore, the rotor can rotate 120 degrees between each upward movement and the previous upward movement. Thus, the rotor can rotate one gear every time the washing motor starts and stops. The water outlet cover on the rotor can cover the first upper water outlet 11, the first upper water outlet 11, and the two upper water outlets 11 without covering them, all at intervals of 120 degrees, to achieve the switching of different water outlets.

[0038] A magnetic sensor 6 is fixed on the outside of the lower shell 2, and a magnet 5 is fixed on the rotor 4. The magnetic sensor 6 senses the position of the rotor 4 by sensing the position of the magnet 5, and outputs a signal to the electronic control system. The electronic control system can thus sense the position of the rotor and execute the corresponding program or detect rotor jamming faults.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims. It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately. Furthermore, various different embodiments of this utility model can also be arbitrarily combined, as long as they do not violate the spirit of this utility model, they should also be considered as the content disclosed by this utility model.

Claims

1. A dishwasher water circuit switching valve, comprising an upper shell and a lower shell, characterized in that: The upper shell has an upper cavity with one end open, and the lower shell has a lower cavity with one end open. A rotating shaft is installed between the upper and lower shells, and a rotor is installed on the rotating shaft. The rotor is located in the cavity formed by the combination of the upper and lower cavities. The upper shell is provided with a rotor mounting hole one, the lower shell is provided with a rotor mounting hole two, and the rotor is provided with a rotor mounting hole three. The rotating shaft is installed on rotor mounting holes one, two, and three. At least two upper water outlets are distributed in a fan shape around the bottom of the upper cavity around the rotating shaft. Upper guide teeth are evenly distributed around the bottom of the upper cavity around the rotating shaft, and lower guide teeth are evenly distributed around the bottom of the lower cavity around the rotating shaft. A water inlet connected to the outside is provided on the side of the lower cavity. Upper and lower guide teeth are evenly distributed around the rotating shaft on the rotor. A water outlet cover plate is also provided on the rotor.

2. The dishwasher water circuit switching valve according to claim 1, characterized in that: The upper guide tooth, lower guide tooth, upper rotor guide tooth, and lower rotor guide tooth all have a guide slope. The guide slopes on the upper guide tooth and the upper rotor guide tooth are in opposite directions and mesh with each other. The guide slopes on the lower guide tooth and the lower rotor guide tooth are in opposite directions and mesh with each other. As the rotor rotates, under the action of the meshing of the guide slopes, the rotor can move up and down while rotating.

3. The dishwasher water circuit switching valve according to claim 1, characterized in that: The number of upper guide teeth and lower guide teeth is the same.

4. The dishwasher water circuit switching valve according to claim 1, characterized in that: The angle at which the upper guide teeth and lower guide teeth are evenly distributed is the same as the angle at which the multiple upper water outlets are distributed, and there is one position on the entire circumference where the upper water outlets are evenly distributed without an upper water outlet.

5. The dishwasher water circuit switching valve according to claim 1, characterized in that: The arrangement angle between the upper and lower rotor guide teeth is half the arrangement angle of two adjacent upper rotor guide teeth.

6. The dishwasher water circuit switching valve according to claim 1, characterized in that: The aforementioned outlet cover can only completely cover one upper outlet.

7. The dishwasher water circuit switching valve according to claim 1, characterized in that: The rotor has three upper guide teeth and three lower guide teeth, two upper water outlets with an angle difference of 120 degrees, and an angle difference of 60 degrees between the upper and lower guide teeth.

8. The dishwasher water circuit switching valve according to claim 1, characterized in that: The rotor is provided with a vertical plate along the axial direction of the rotor mounting hole three. The water inlet direction is tangent to the rotation circumference of the rotor. The vertical plate of the rotor can rotate under the impact of the water flow.

9. The dishwasher water circuit switching valve according to claim 1, characterized in that: A magnetic sensor is fixed to the outside of the lower shell, and a magnet is fixed to the rotor. The magnetic sensor senses the position of the rotor by sensing the position of the magnet.

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