A spray system and a cleaning machine using the spray system

Abstract

The present invention relates to a spray system and a cleaning machine using the spray system. The spray system includes a support seat, a spray arm, an impeller assembly and a motor, and also includes a transmission shaft, a transmission belt and a turntable. The transmission shaft is rotatably arranged on one side of the spray arm and is coaxially arranged with the axial direction of the impeller assembly. The transmission belt is connected between the motor output shaft and the transmission shaft. The turntable is connected to the top of the transmission shaft and rotates synchronously with the transmission shaft. A limiting structure that can stop the spray arm from rotating intermittently is arranged between the turntable and the spray arm. The present invention sets a turntable beside the spray arm, and realizes the linkage between the turntable and the motor output shaft through the transmission shaft and the transmission belt, so that the turntable keeps rotating. At the same time, a limiting structure that can stop the spray arm from rotating intermittently is arranged between the turntable and the spray arm, thereby extending the residence time of the local spray of the spray arm. The stop point is correspondingly set in the difficult-to-clean area, which is conducive to eliminating the cleaning dead angle and improving the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines for washing dishes, fruits and vegetables, and in particular to a spray system and a washing machine using the spray system. Background Art

[0002] As people's living standards continue to improve, dishwashers, as a kitchen appliance, are increasingly entering households. Currently, dishwashers on the market are generally divided into three types: desktop, cabinet, and tank. Among them, desktop dishwashers are integrated independent structures and are generally placed on the table for use; cabinet dishwashers are also independent structures, but need to be embedded in kitchen cabinets for use; tank dishwashers are combined with sinks and are generally installed in kitchen cabinets for use.

[0003] For tabletop and cabinet dishwashers, their vertical spatial structure makes it easy to implement double or even triple spray arms, which can increase the number of dishes and improve the cleaning effect. For tank-type dishwashers, since the shape of the tank body needs to be adapted to the cabinet and is affected by the structural coordination between the open water pump and the tank body, it is impossible to add spray arms in the vertical direction to form a spray arm system arranged up and down. Currently, only a single tank can be equipped with a single spray arm. However, since the functional tank of the sink dishwasher often has a certain length-to-width ratio, the length of the spray arm can only be determined by the length of the shortest side of the functional tank. As a result, the tableware on the long side of the functional tank is often not well cleaned, and the four corners are even worse, and they cannot be well sprayed and rinsed, and there are cleaning dead corners.

[0004] Therefore, further improvements are needed to be made to the spray system in the current tank-type dishwasher. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a spray system which can eliminate cleaning dead corners and improve cleaning effect by extending the residence time of local spraying in view of the current status of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned spray system in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve at least one of the above-mentioned technical problems is: a spray system, including a support seat, a spray arm, an impeller assembly and a motor, the spray arm being rotatably arranged on the support seat, a water inlet being opened on the bottom wall of the spray arm, at least the upper part of the impeller assembly being rotatably located inside the water inlet of the spray arm and being used to drive the spray arm to rotate relative to the support seat through the viscosity of water, the motor being arranged below the spray arm and the output shaft being connected to the impeller assembly, characterized in that: it also includes a transmission shaft, a transmission belt and a turntable, the transmission shaft being rotatably arranged on one side of the spray arm and being coaxially arranged with the axial direction of the impeller assembly, the transmission belt being transmission-connected between the motor output shaft and the transmission shaft, the turntable being connected to the top of the transmission shaft and rotating synchronously with the transmission shaft, and a limiting structure being arranged between the turntable and the spray arm to enable the spray arm to intermittently stop rotating.

[0008] In the above scheme, a polygonal transmission plate is provided at the outer edge of the water inlet of the spray arm, and each side of the transmission plate is recessed inward to form a recessed area that can match the curvature of the outer edge of the turntable so as to rotate together. Guide grooves extending from the inside are opened at each corner of the transmission plate. Correspondingly, a limiting column is provided on the edge of the turntable that can be inserted into the guide groove and reciprocate along the guide groove as the turntable rotates. The limiting column, the recessed area, and the guide groove together constitute the limiting structure. With such a structure, when the edge of the turntable slides with the recessed area of ​​the transmission plate, the spray arm is in a stagnant state, thereby extending the dwell time of the local spray at this time, so that the area corresponds to the corner of the cleaning machine, and the cleaning intensity at the corner of the cleaning machine can be improved; when the turntable rotates until the limit column slides into the guide groove, the limit column slides inward and outward along the guide groove within a stroke, and the corresponding spray arm is in a rotating state, which can complete the spray cleaning of the area outside the corner of the cleaning machine; in the above process, intermittent dwelling of the spray arm during the rotation process is achieved, so that the difficult-to-clean areas can be focused on for cleaning, thereby improving the cleaning effect.

[0009] Preferably, a protrusion is formed between two adjacent recessed areas on the transmission plate, the guide groove is provided on the protrusion, and the guide groove extends along the radial direction of the water inlet. The above structure facilitates the switching between the rotating state and the rest state of the spray arm.

[0010] Preferably, a clearance zone is provided at the edge of the upper portion of the rotating disk, which can allow the protrusion to slide through during the rotation of the spray arm, and the lower wall surface of the transmission plate is higher than the upper wall surface of the clearance zone and lower than the upper wall surface of the transmission plate. This structure is conducive to improving the stability of the rotational cooperation between the transmission plate and the rotating disk, and avoiding failures when the spray arm switches between the rotating state and the rest state.

[0011] Preferably, the inner edge of the clearance area is an arc-shaped structure that matches the rotation trajectory of the protruding portion, and the limiting column is arranged at the outer edge of the clearance area and corresponds to the central part of the arc-shaped structure. There are four recessed areas of the same size, and correspondingly, there are four limiting columns, which are respectively arranged at four equal parts of the edge of the turntable. The above structure is conducive to controlling the position and time of the spray arm stopping to improve the cleaning effect.

[0012] To facilitate assembly, a connecting sleeve extending downward around the water inlet is provided on the bottom wall of the spray arm, and a buckle is convexly provided on the outer wall surface of the lower end of the connecting sleeve. Correspondingly, a clamping ring is provided on the top outer edge of the support seat, which can cooperate with the buckle to rotatably constrain the spray arm on the support seat; the transmission plate is arranged on the outer periphery of the connecting sleeve and is located above the buckle.

[0013] In order to facilitate transmission, the transmission belt passes around the central axis of the impeller assembly and the transmission shaft, so that the impeller assembly is used to drive the transmission shaft to rotate.

[0014] A cleaning machine using the above-mentioned spray system includes a box body, and is characterized in that: the support seat is arranged on the inner bottom wall of the box body, the motor is arranged on the outer bottom of the box body and the output shaft passes through the bottom wall of the box body and is connected to the impeller assembly, the lower end of the transmission shaft is rotatably connected to the bottom wall of the box body through a bearing, and when the spray arm stops rotating, the end of the spray arm is arranged corresponding to the corner of the box body.

[0015] Preferably, a partially concave drainage area is provided at the bottom of the box, the support seat and the transmission shaft are both provided at the bottom of the drainage area, and the turntable is arranged higher than the top of the drainage area. This structure is conducive to saving assembly space and preventing the rotation of the turntable from affecting the movement of water flow in the box.

[0016] Compared with the prior art, the advantages of the present invention are: a turntable is arranged beside the spray arm, and the turntable and the motor output shaft are linked by a transmission shaft and a transmission belt to keep the turntable rotating. At the same time, a limiting structure is arranged between the turntable and the spray arm to enable the spray arm to stop rotating intermittently, thereby extending the residence time of the local spraying of the spray arm. The residence position is set correspondingly in the difficult-to-clean area, which is conducive to eliminating cleaning dead corners and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a spray system according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Exploded diagram of

[0019] Figure 3 A schematic diagram of the coordination structure between the turntable and the transmission plate when the spray arm is in a stagnant state in an embodiment of the present invention;

[0020] Figure 4 It is a structural schematic diagram of a turntable in an embodiment of the invention;

[0021] Figure 5 It is a schematic diagram of the structure of the spray arm in an embodiment of the present invention;

[0022] Figure 6 It is a structural schematic diagram of a cleaning machine according to an embodiment of the present invention;

[0023] Figure 7 It is a cross-sectional view of a cleaning machine in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 5 As shown, the spray system of this embodiment includes a support base 1, a spray arm 2, an impeller assembly 3 and a motor 4. The spray arm 2 is rotatably arranged on the support base 1. A water spray hole 20 is opened on the top wall of the spray arm 2 and a water inlet 21 is opened on the bottom wall. The upper part of the impeller assembly 3 is a centrifugal structure, which is rotatably located inside the water inlet 21 of the spray arm 2 and is used to drive the spray arm 2 to rotate relative to the support base 1 through the viscosity of water. The lower part of the impeller assembly 3 is an axial flow structure, which is located below the water inlet 21 of the spray arm 2 and is used to draw water from the axial flow structure upward. The motor 4 is arranged below the spray arm 2 and the output shaft 41 is connected to the impeller assembly 3 to drive the impeller assembly 3 to rotate.

[0026] The spray system of this embodiment further includes a transmission shaft 5, a transmission belt 6 and a turntable 7. The transmission shaft 5 is rotatably arranged on one side of the spray arm 2 and is coaxially arranged with the axial direction of the impeller assembly 3. The transmission belt 6 bypasses the central axis 31 of the impeller assembly 3 and the transmission shaft 5, thereby using the impeller assembly 3 to drive the transmission shaft 5 to rotate. The turntable 7 is fixedly connected to the top of the transmission shaft 5 by bolts and rotates synchronously with the transmission shaft 5. A limiting structure a that can stop the spray arm 2 from rotating intermittently is provided between the turntable 7 and the spray arm 2. The rotation of the above-mentioned motor output shaft 41 simultaneously drives the impeller assembly 3 and the turntable 7 to rotate.

[0027] In this embodiment, a polygonal transmission plate 22 is provided at the outer edge of the water inlet 21 of the spray arm 2, and each side of the transmission plate 22 is recessed inward to form a recessed area 221 that can match the curvature of the outer edge of the rotating disk 7 so as to rotate and cooperate. A guide groove 222 extending from the inside is opened at each corner of the transmission plate 22, and correspondingly, a limiting column 71 is provided at the edge of the rotating disk 7 that can be inserted into the guide groove 222 and reciprocate along the guide groove 222 as the rotating disk 7 rotates, and the limiting column 71, the recessed area 221, and the guide groove 222 together constitute the above-mentioned limiting structure a.

[0028] A protrusion 223 is formed between two adjacent recessed areas 221 on the transmission plate 22, and a guide groove 222 is provided on the protrusion 223, and the guide groove 222 extends along the radial direction of the water inlet 21. This structure facilitates the switching between the rotation state and the rest state of the spray arm 2. A clearance area 72 is provided at the edge of the upper part of the turntable 7, through which the protrusion 223 can slide during the rotation of the spray arm 2. The lower wall surface of the transmission plate 22 is higher than the upper wall surface of the clearance area 72 and lower than the upper wall surface of the transmission plate 22. This structure is conducive to improving the stability of the rotational cooperation between the transmission plate 22 and the turntable 7, and avoiding failure when the spray arm 2 switches between the rotation state and the rest state. The inner edge of the clearance area 72 is an arc structure 721 that matches the rotation trajectory of the protrusion 223, and the limiting column 71 is arranged at the outer edge of the clearance area 72 and corresponds to the central part of the arc structure 721. There are four recessed areas 221 of the same size, and correspondingly, there are four limit posts 71, which are respectively arranged at four equal parts of the edge of the rotating disk 7. The above structure is conducive to controlling the position and time of the spray arm 2 stopping, so as to improve the cleaning effect.

[0029] In order to facilitate assembly, the bottom wall of the spray arm 2 of this embodiment is provided with a connecting sleeve 23 extending downward around the water inlet 21, and a buckle 231 is convexly provided on the outer wall surface of the lower end of the connecting sleeve 23. Correspondingly, the top outer edge of the support seat 1 is provided with a clamping ring 11 that can cooperate with the buckle 231 to rotatably constrain the spray arm 2 on the support seat 1. The cooperation between the clamping ring 11 and the buckle 231 is mainly to prevent the spray arm 2 from upwardly separating from the support seat 1, but to allow the spray arm 2 to rotate relative to the support seat 1. When the impeller assembly 3 rotates, the spray arm 2 will be driven to rotate by the viscosity of the water. The transmission plate 22 of this embodiment is arranged on the outer periphery of the connecting sleeve 23 and is located above the buckle 231.

[0030] like Figure 6 , 7 As shown, the cleaning machine with the above-mentioned spray system in this embodiment includes a box body 8, a support base 1 is fixed to the inner bottom wall of the box body 8 by screws, a motor 4 is arranged at the outer bottom of the box body 8, and an output shaft 41 passes through the bottom wall of the box body 4 and is connected to the impeller assembly 3. When the spray arm 2 stops rotating, the end of the spray arm 2 is arranged corresponding to the corner of the box body 8. The lower end of the transmission shaft 5 is rotatably connected to the inner bottom wall of the box body 8 through a bearing 9, and a bracket 51 is also arranged on the outer periphery of the transmission shaft 5. The top of the bracket 51 is arranged close to the lower wall surface of the turntable 7 without contacting the lower wall surface of the turntable to prevent the turntable 7 from large displacement during rotation.

[0031] The bottom of the box body 8 is provided with a partially concave drainage area 81, the support seat 1 and the transmission shaft 5 are both arranged at the bottom of the drainage area 81, and the turntable 7 is arranged higher than the top of the drainage area 81. This structure is conducive to saving assembly space and preventing the rotation of the turntable 7 from affecting the movement of water flow in the box body 8.

[0032] When the cleaning machine structure of this embodiment is used, when the edge of the turntable 7 slides with the recessed area 221 of the transmission plate 22, the spray arm 2 is in a stagnant state, thereby extending the dwell time of the local spray at this time. Since this area corresponds to the corners of the cleaning machine, the cleaning intensity at the corners of the cleaning machine can be improved; when the turntable 7 rotates until the limiting column 71 slides into the guide groove 222, the limiting column 71 slides inward and outward along the guide groove 222 within a stroke, and the corresponding spray arm 2 is in a rotating state, which can complete the spray cleaning of the areas outside the corners of the cleaning machine; in the above process, intermittent dwelling of the spray arm 2 during the rotation process is achieved, so that the corner areas that are difficult to clean can be focused on for cleaning, thereby improving the cleaning effect.

Claims

1. A spray system, comprising a support base (1), a spray arm (2), an impeller assembly (3) and a motor (4), wherein the spray arm (2) is rotatably arranged on the support base (1), a water inlet (21) is provided on the bottom wall of the spray arm (2), at least the upper part of the impeller assembly (3) is rotatably located inside the water inlet (21) of the spray arm (2) and is used to drive the spray arm (2) to rotate relative to the support base (1) through the viscosity of water, the motor (4) is arranged below the spray arm (2) and the output shaft (41) is connected to the impeller assembly (3), characterized in that: It also comprises a transmission shaft (5), a transmission belt (6) and a rotating disk (7); the transmission shaft (5) is rotatably arranged on one side of the spray arm (2) and is coaxially arranged with the axial direction of the impeller assembly (3); the transmission belt (6) is transmission-connected between the output shaft (41) of the motor (4) and the transmission shaft (5); the rotating disk (7) is connected to the top of the transmission shaft (5) and rotates synchronously with the transmission shaft (5); and a limiting structure (a) is arranged between the rotating disk (7) and the spray arm (2) and is capable of causing the spray arm (2) to stop rotating intermittently; A polygonal transmission plate (22) is arranged at the outer edge of the water inlet (21) of the spray arm (2), and each side of the transmission plate (22) is recessed inwardly to form a recessed area (221) that can match the curvature of the outer edge of the turntable (7) so as to rotate in cooperation. Guide grooves (222) extending from the inside are provided at each corner of the transmission plate (22). Accordingly, a limiting column (71) is arranged at the edge of the turntable (7) that can be inserted into the guide groove (222) and reciprocate along the guide groove (222) as the turntable (7) rotates. The limiting column (71), the recessed area (221) and the guide groove (222) together constitute the limiting structure (a).

2. The spray system according to claim 1, characterized in that: A protruding portion (223) is formed between two adjacent recessed areas (221) on the transmission plate (22), and the guide groove (222) is provided on the protruding portion (223), and the guide groove (222) extends along the radial direction of the water inlet (21).

3. The spray system according to claim 2, characterized in that: The upper edge of the rotating disk (7) is provided with a clearance area (72) for the protrusion (223) to slide through during the rotation of the spray arm (2), and the lower wall surface of the transmission plate (22) is higher than the upper wall surface of the clearance area (72) and lower than the upper wall surface of the transmission plate (22).

4. The spray system according to claim 3, characterized in that: The inner edge of the clearance area (72) is an arc-shaped structure (721) that matches the rotation trajectory of the protruding portion (223), and the limiting column (71) is arranged at the outer edge of the clearance area (72) and corresponds to the central part of the arc-shaped structure (721).

5. The spray system according to claim 1, characterized in that: There are four recessed areas (221) of the same size, and correspondingly, there are four limit posts (71) which are respectively arranged at four equal parts of the edge of the rotating disk (7).

6. The spray system according to any one of claims 1 to 5, characterized in that: A connecting sleeve (23) extending downward around the water inlet (21) is arranged on the bottom wall of the spray arm (2); a buckle (231) is convexly arranged on the outer wall surface of the lower end of the connecting sleeve (23); correspondingly, a clamping ring (11) is arranged on the top outer edge of the support seat (1) and can cooperate with the buckle (231) to rotatably constrain the spray arm (2) on the support seat (1); the transmission plate (22) is arranged on the outer periphery of the connecting sleeve (23) and is located above the buckle (231).

7. The spray system according to any one of claims 1 to 5, characterized in that: The transmission belt (6) passes around the central axis (31) of the impeller assembly (3) and the transmission shaft (5), thereby utilizing the impeller assembly (3) to drive the transmission shaft (5) to rotate.

8. A cleaning machine using the spray system according to any one of claims 1 to 7, comprising a housing (8), characterized in that: The support seat (1) is arranged on the inner bottom wall of the box body (8), the motor (4) is arranged on the outer bottom of the box body (8) and the output shaft (41) passes through the bottom wall of the box body (8) and is connected to the impeller assembly (3), the lower end of the transmission shaft (5) is rotatably connected to the inner bottom wall of the box body (8) through a bearing (9), and when the spray arm (2) stops rotating, the end of the spray arm (2) is arranged corresponding to the corner of the box body (8).

9. The cleaning machine according to claim 8, characterized in that: The bottom of the box body (8) is provided with a partially concave drainage area (81), the support seat (1) and the transmission shaft (5) are both arranged at the bottom of the drainage area (81), and the rotating disk (7) is arranged higher than the top of the drainage area (81).

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