Shunt valve assembly of dish-washing machine

Abstract

The utility model provides a dish-washing machine shunt valve assembly which comprises a sealing base, a shunt seat, a transmission rotating shaft, a lower water retaining piece and an upper water retaining piece, a shaft hole for the transmission rotating shaft to penetrate through is formed in the middle of the sealing base, the transmission rotating shaft and the sealing base can rotate relatively, and a plurality of water path structures are arranged on the shunt seat. The two ends of the water path structure are distributed on the side face and the top face of the water distribution base respectively, the water distribution base is connected to the upper end face of the sealing base, the water distribution base and the sealing base cannot rotate relatively, the lower water retaining piece is attached to the upper end face of the water distribution base and connected and linked with the transmission rotating shaft, and the upper water retaining piece is arranged above the lower water retaining piece and connected and linked with the transmission rotating shaft. Water passing openings are formed in the upper water retaining piece and the lower water retaining piece. All parts of the shunt valve assembly can be assembled into a whole set in advance before being assembled to a water cup, when the shunt valve assembly is assembled with the water diversion cavity in the later period, the shunt valve assembly can be directly connected and fixed with the water diversion cavity of the water cup through the sealing base, and the shunt valve assembly has the advantages of being reasonable in overall structural design and easy to assemble and produce.

Description

Technical Field

[0001] The invention relates to a water diversion valve assembly of a dishwasher. Background Art

[0002] A dishwasher's water diverter valve primarily controls the water supply to each spray arm, enabling the dishwasher to control different spray arms for different wash cycles. Currently, commercially available diverter valves are built with separate components and cannot be assembled together beforehand, making installation into the diverter chamber on a water cup quite complex. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above problems. We provide a water diverter valve assembly for a dishwasher. The water diverter valve assembly can be assembled into a set and directly installed on the water diverter cavity on the water cup.

[0004] To achieve the above-mentioned objectives, the present invention provides a water diverter valve assembly for a dishwasher, which includes a sealing base, a water diverter seat, a transmission shaft, a lower water baffle and an upper water baffle. An axial hole for the transmission shaft to pass through is provided in the middle of the sealing base, and the transmission shaft and the sealing base can rotate relative to each other. The water diverter seat is provided with multiple water channel structures, and the two ends of the water channel structures are respectively distributed on the side and top surfaces of the water diverter seat. The water diverter seat is connected to the upper end surface of the sealing base, and the water diverter seat and the sealing base cannot rotate relative to each other. The lower water baffle is attached to the upper end surface of the water diverter seat and is connected and linked with the transmission shaft. The upper water baffle is provided above the lower water baffle and is connected and linked with the transmission shaft. Water outlets are provided on the upper water baffle and the lower water baffle.

[0005] In one or more embodiments, the upper end of the transmission shaft has a first positioning structure, and the lower water retaining plate and the upper water retaining plate are provided with a second positioning structure that cooperates with the second positioning structure.

[0006] In one or more embodiments, the first positioning structure is composed of a plurality of convex ribs distributed on the outer circumference of the transmission shaft, and the second positioning structure is a concave position, and the concave position is cooperatively connected with the convex rib.

[0007] In one or more embodiments, the sealing base is provided with a surrounding wall around the shaft hole, a sealing ring is provided inside the surrounding wall, and the sealing ring is in close contact with the surface of the transmission shaft.

[0008] In one or more embodiments, an upwardly protruding positioning rib is provided on the upper end of the sealing base, and the positioning rib is connected to the water diversion seat to limit the water diversion seat from rotating relative to the sealing base.

[0009] In one or more embodiments, a driving motor is provided on the sealing base, the rotating shaft of the driving motor is connected to the transmission rotating shaft, the transmission rotating shaft is provided with a convex portion protruding outward, and a micro switch is provided on the sealing base, and the triggering portion of the micro switch is located on the rotation path when the convex portion rotates.

[0010] In one or more embodiments, a screw-on position is provided on the sealing base.

[0011] Compared with the background technology, the present invention has the following advantages: the various components of the water diversion valve assembly can be pre-assembled into a set before being assembled into the water cup. When assembled with the water diversion chamber of the water cup in the later stage, they can be directly connected and fixed to the water diversion chamber of the water cup through the sealing base. It has the advantages of reasonable overall structural design and easy assembly and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the structure of the water diversion valve assembly of this embodiment;

[0013] Figure 2 This is a structural diagram of the water diverter valve assembly before assembly in this embodiment;

[0014] Figure 3 for Figure 2 Schematic diagram of the structure from another angle. DETAILED DESCRIPTION

[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0016] Please see Figure 1-3 The water diverter valve assembly of the present invention comprises a sealing base 1, a water diverter seat 2, a transmission shaft 3, a lower water retaining plate 4 and an upper water retaining plate 5. The middle position of the sealing base is provided with an axial hole 6 for the transmission shaft to pass through, and the transmission shaft and the sealing base can rotate relative to each other. The water diverter seat 2 is provided with multiple water channel structures, and the two ends of the water channel structure are respectively distributed on the side and top surfaces of the water diverter seat. The water diverter seat 2 is connected to the upper end surface of the water diverter seat 1, and the water diverter seat and the sealing base cannot rotate relative to each other. The lower water retaining plate 4 is attached to the upper end surface of the water diverter seat 2 and is connected and linked with the transmission shaft. The upper water retaining plate 5 is arranged above the lower water retaining plate and is connected and linked with the transmission shaft. The upper water retaining plate 5 and the lower water retaining plate 4 are provided with a water outlet. The water diverter valve assembly with this structure can be pre-installed as a set before being assembled into the water diverter chamber. When it is assembled with the water diverter chamber later, it can be directly put into the water diverter chamber for assembly and use, which simplifies the assembly process of the water diverter valve and shortens the assembly time.

[0017] The upper end of the transmission shaft 3 has a first positioning structure, and the lower water retaining plate 4 and the upper water retaining plate 5 are provided with a second positioning structure that cooperates with the second positioning structure. Through the cooperation of the first positioning structure and the second positioning structure, the transmission shaft is connected to the lower water retaining plate and the upper water retaining plate. Preferably, the first positioning structure is composed of a plurality of convex ribs 7 distributed on the outer circumference of the transmission shaft, and the plurality of convex ribs 7 are evenly distributed around the circumference. The second positioning structure is a recessed position 8, which cooperates with the convex ribs.

[0018] The sealing base 1 is provided with a surrounding wall 9 around the shaft hole 6, and a sealing ring 10 is provided inside the surrounding wall. The sealing ring is in close contact with the surface of the transmission shaft. The sealing treatment of the sealing ring can improve the sealing between the transmission shaft and the shaft hole.

[0019] The upper end of the sealing base 1 is provided with upwardly protruding positioning ribs 11, which are connected to the water diversion seat 2 to limit the rotation of the water diversion seat relative to the sealing base. In this embodiment, the bottom of the water channel structure on the water diversion seat is open. When the water diversion seat is connected to the sealing base, these positioning ribs are arranged around the open outer edge of the bottom of the water channel structure, which plays both a positioning and a sealing role.

[0020] A driving motor 12 is provided on the sealing base, and the rotating shaft of the driving motor is connected to the transmission shaft 3. A convex portion 13 protruding outward is provided on the transmission shaft. A micro switch 14 is provided on the sealing base. The triggering portion of the micro switch is located on the rotation path when the convex portion rotates. When the driving motor drives the transmission shaft to rotate, the convex portion provided on the transmission shaft also rotates with it and triggers the micro switch during the rotation process, thereby judging the rotation angle position of the transmission shaft by the trigger signal of the micro switch.

[0021] In order to facilitate the assembly of the water diversion valve assembly on the water cup, a screw-on position 15 is provided on the sealing base 1 .

[0022] The above description is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the content disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A water diverter valve assembly for a dishwasher, characterized by: The invention comprises a sealing base (1), a water diversion seat (2), a transmission shaft (3), a lower water retaining plate (4) and an upper water retaining plate (5); a shaft hole (6) for the transmission shaft to pass through is provided in the middle of the sealing base; the transmission shaft and the sealing base can rotate relative to each other; a plurality of water channel structures are provided on the water diversion seat (2); the two ends of the water channel structures are respectively distributed on the side surface and the top surface of the water diversion seat; the water diversion seat (2) is connected to the upper end surface of the sealing base (1); the water diversion seat and the sealing base cannot rotate relative to each other; the lower water retaining plate (4) is attached to the upper end surface of the water diversion seat (2) and is connected to the transmission shaft in a linkage manner; the upper water retaining plate (5) is provided above the lower water retaining plate and is connected to the transmission shaft in a linkage manner; and water outlets are provided on the upper water retaining plate (5) and the lower water retaining plate (4).

2. The water diverter valve assembly for a dishwasher according to claim 1, characterized in that: The upper end of the transmission shaft (3) has a first positioning structure, and the lower water retaining plate (4) and the upper water retaining plate (5) are provided with a second positioning structure that cooperates with the second positioning structure.

3. The water diverter valve assembly for a dishwasher according to claim 2, characterized in that: The first positioning structure is composed of a plurality of convex ribs (7) distributed on the outer periphery of the transmission shaft, and the second positioning structure is a concave position (8), which is cooperatively connected with the convex ribs.

4. The water diverter valve assembly for a dishwasher according to claim 1, characterized in that: The sealing base (1) is provided with a surrounding wall (9) around the shaft hole (6), and a sealing ring (10) is provided inside the surrounding wall. The sealing ring is in close contact with the surface of the transmission shaft.

5. The water diverter valve assembly for a dishwasher according to claim 1, characterized in that: An upwardly protruding positioning rib (11) is provided at the upper end of the sealing base (1), and the positioning rib is connected to the water diversion seat (2) to limit the water diversion seat from rotating relative to the sealing base.

6. The water diverter valve assembly for a dishwasher according to claim 1, characterized in that: The sealing base is provided with a driving motor (12), the rotating shaft of the driving motor is connected to the transmission rotating shaft (3), the transmission rotating shaft is provided with a convex portion (13) protruding outward, and the sealing base is provided with a micro switch (14), the triggering portion of the micro switch is located on the rotation path when the convex portion rotates.

7. The water diverter valve assembly for a dishwasher according to claim 1, characterized in that: The sealing base (1) is provided with a screw-on position (15).

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