A cleaning machine

Abstract

The utility model relates to a kind of cleaning machines, including box and spray arm, further include: positioning rod, lower end is constrained to the bottom of box, upper end is located above spray arm by passing through spray arm;Positioning cap, be equipped in the top of positioning rod, positioning cap and positioning rod between being provided with the connecting structure that can make both locking positioning or turn over certain angle;Moving part, pass through positioning cap arrangement and can reciprocate along the radial direction of positioning cap;Coil, be equipped on spray arm and be close to positioning rod arrangement;Magnetic member, with moving part is connected and adjusts the distance between coil with the movement of moving part.Cleaning program runs before, utensil that needs to be strengthened wash is placed in specific area, when cleaning program runs, spray arm is rotated to specific area each time, attraction is generated between coil and magnetic member, spray arm rotating speed will slow down, to extend the spray time of this area, improve the cleaning intensity of specific area, to meet the demand for specific area strengthening wash in turn.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, specifically to a cleaning machine for cleaning tableware, fruits and vegetables. Background Technology

[0002] Dishwashers typically include a spray arm that rinses dishes or fruits and vegetables by spraying water jets. For example, Chinese patents CN204813755U ("Dishwasher Spray Arm Base, Dishwasher Spray Arm Device and Dishwasher") and CN209932651U ("A Spray Arm for a Cleaning Machine") disclose the corresponding spray arm structures.

[0003] Chinese utility model patent CN204445748U, entitled "A Dishwasher Sprayer and Dishwasher" (application number: CN201520047405.0), discloses a structure in which the sprayer includes a water storage cavity, a spray surface, and a mounting surface. The spray surface has multiple spray holes communicating with the water storage cavity. The mounting surface has a water inlet. A nozzle is mounted on the spray surface, and the nozzle has at least two spray holes. The nozzle has a water channel communicating with the water storage cavity, and the spray holes are connected to the water channel. While the sprayer rotates and sprays, the nozzles on the sprayer also spray simultaneously. Because each nozzle has at least two spray holes, the effective spray area is increased, and dead zones are reduced.

[0004] The sprayer with the above structure is beneficial for expanding the spray range and reducing cleaning dead spots. However, it cannot control the speed of the spray arm or increase the spray intensity for specific areas. In daily life, users may need to clean pots and other special utensils that are more difficult to clean at the same time as tableware. Such utensils require a longer spray time, which means that the existing structure cannot meet the needs of consumers. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a cleaning machine that can adjust the rotation speed of the spray arm in a specific area to meet the needs of intensive washing in a specific area, in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A cleaning machine includes a housing and a spray arm, wherein the spray arm is rotatably disposed within the housing and arranged near the bottom of the housing, and further includes:

[0008] The positioning rod is constrained at the bottom of the box at its lower end and passes through the spray arm at its upper end, which is located on the spray arm.

[0009] A positioning cap is provided on the top of the positioning rod, and a connecting structure is provided between the positioning cap and the positioning rod to lock them in place or allow them to rotate through a certain angle.

[0010] The movable component is arranged through the positioning cap and can reciprocate radially along the positioning cap;

[0011] The coil is located on the spray arm and near the positioning rod;

[0012] A magnetic component is connected to the movable component and adjusts its distance from the coil as the movable component moves.

[0013] Before the cleaning program starts, place the dishes that need to be washed more thoroughly in a specific area. When the cleaning program starts, each time the spray arm rotates to the specific area, the coil and the magnetic component generate an attraction force, and the speed of the spray arm will slow down, thereby extending the spray time of that area and increasing the cleaning intensity of the specific area, thus meeting the needs of washing the specific area more thoroughly.

[0014] Preferably, the movable component includes a first slide rod and a second slide rod arranged in parallel. The first ends of the first slide rod and the second slide rod are connected by a first crossbar, and the second ends of the first slide rod and the second slide rod are connected by a second crossbar. The first slide rod and the second slide rod pass through two opposite side walls of the positioning cap. With this structure, the movable component can be stably and reliably constrained on the positioning cap. When it is necessary to adjust the distance between the coil and the magnetic component, the movable component can be pushed back, making operation convenient.

[0015] To facilitate assembly, the positioning cap has openings on its two opposite sidewalls for the corresponding slide rods to pass through, and these openings guide the corresponding slide rods. This structure guides the slide rods from four side-by-side, oppositely arranged openings, which helps improve the stability of the moving parts and prevents jamming.

[0016] Preferably, the first and second slide rods are provided with downwardly extending baffles, the lower ends of which are suspended relative to the top of the spray arm, and the magnetic component is disposed on the inner sidewall of the baffle. This structure facilitates the installation of the magnetic component and allows for easy control of the radial position of the magnetic component in the positioning cap by adjusting the moving part.

[0017] Preferably, both the baffle and the magnetic component are concealed within the positioning cap. This structure prevents the complex cleaning environment from causing adverse effects such as obstruction between the magnetic component and the coil, thus improving operational reliability.

[0018] In this invention, the housing contains a water pump assembly located below the spray arm for drawing water from the spray arm. The lower end of the positioning rod passes through the water inlet at the bottom of the spray arm and extends into the water outlet channel of the water pump assembly below the spray arm, and is supported and constrained within the water outlet channel by a support arm. This structure facilitates the limiting of the positioning rod.

[0019] Preferably, the bottom of the spray arm is provided with a downward-extending water inlet sleeve, and correspondingly, the pump assembly is provided with an upward-extending water outlet channel connected to the water inlet sleeve. The support arm is cross-shaped and arranged near the lower end of the water inlet sleeve, and the lower end of the positioning rod is connected to the central intersection of the cross-shaped support arm. This structure, with the positioning rod centrally positioned within the water inlet sleeve, not only improves the installation stability of the positioning rod but also rectifys and guides the water flow.

[0020] To facilitate fixing the positioning cap to the positioning rod, a gear is provided at the upper end of the positioning rod, and correspondingly, a toothed groove is provided on the lower surface of the positioning cap so that the gear can be inserted into it and mesh with it for positioning.

[0021] Preferably, a clearance space is formed between the first slide rod and the second slide rod to accommodate the tooth groove. This structure makes the entire speed adjustment structure more compact and saves assembly space.

[0022] Preferably, the spray arm is equipped with an ultraviolet lamp for sterilization, which is electrically connected to an electromagnetic induction structure consisting of a coil and magnetic components. By utilizing the electromagnetic effect to generate electricity, the power supply problem of the ultraviolet lamp on the spray arm is solved, achieving the effect of disinfection and sterilization simultaneously with spray cleaning.

[0023] Compared with the prior art, the advantages of this utility model are as follows: This utility model sets a coil and a magnetic component between the spray arm and the positioning cap, which can form damping in a specific area as the spray arm rotates. Before the cleaning program runs, the tableware that needs to be washed more thoroughly is placed in the specific area. When the cleaning program runs, each time the spray arm rotates to the specific area, the coil and the magnetic component generate attraction, and the speed of the spray arm will slow down, thereby extending the spraying time of that area and increasing the cleaning intensity of the specific area, thus meeting the needs of washing more thoroughly in a specific area. Attached Figure Description

[0024] Figure 1 This is a partial structural schematic diagram of an embodiment of the present utility model;

[0025] Figure 2 This is a diagram showing the assembly of the spray arm and the water pump assembly in an embodiment of this utility model.

[0026] Figure 3 This is an exploded view of the spray arm and adjustment structure in an embodiment of this utility model;

[0027] Figure 4 This is a cross-sectional view of the spray arm in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the water pump assembly in an embodiment of the present invention. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0035] like Figures 1-5 As shown, the cleaning machine in this embodiment includes a housing 1 and a spray arm 2. The spray arm 2 is rotatably disposed in the housing 1 and arranged near the bottom of the housing 1.

[0036] This embodiment features an adjustment structure that allows for adjusting the rotational speed of the spray arm 2 in a specific area to meet the enhanced washing requirements of that area. This structure includes a positioning rod 3, a positioning cap 4, a moving part 5, a coil 6, and a magnetic component 7. The lower end of the positioning rod 3 is constrained to the bottom of the housing 1, and the upper end passes through the spray arm 2 and sits atop it. The positioning cap 4 is located at the top of the positioning rod 3, and a connecting structure is provided between the positioning cap 4 and the positioning rod 3 to lock them in place or allow them to rotate through a certain angle. The moving part 5 passes through the positioning cap 4 and can reciprocate radially along the positioning cap 4. The coil 6 is located on the spray arm 2 and close to the positioning rod 3. The magnetic component 7 is connected to the moving part 5 and adjusts its distance from the coil 6 as the moving part 5 moves.

[0037] Before the cleaning program starts, place the dishes that need to be washed more thoroughly in a specific area. When the cleaning program starts, each time the spray arm 2 rotates to the specific area, the coil 6 and the magnetic component 7 generate an attraction force, and the rotation speed of the spray arm 2 will slow down, thereby extending the spray time of that area and increasing the cleaning intensity of the specific area, thus meeting the needs of washing more thoroughly in a specific area.

[0038] In this embodiment, the movable component 5 includes a first slide rod 51 and a second slide rod 52 arranged in parallel. The first ends of the first slide rod 51 and the second slide rod 52 are connected by a first crossbar 53, and the second ends of the first slide rod 51 and the second slide rod 52 are connected by a second crossbar 54. The first slide rod 51 and the second slide rod 52 are arranged through two opposite side walls of the positioning cap 4. With the above structure, the movable component 5 can be stably and reliably constrained on the positioning cap 4. When it is necessary to adjust the distance between the coil 6 and the magnetic component 7, the movable component 5 can be pushed back, which is convenient to operate.

[0039] To facilitate assembly, the positioning cap 4 has openings 41 on its two opposite sidewalls for the corresponding slide rods to pass through, and these openings 41 are guided to the corresponding slide rods. This structure guides the slide rods from four parallel and opposite openings 41, which helps to improve the movement stability of the moving part 5 and avoid jamming.

[0040] The first slide rod 51 and the second slide rod 52 are provided with downwardly extending baffles 55. The lower end of the baffles 55 is suspended relative to the top of the spray arm 2, and the magnetic component 7 is provided on the inner side wall of the baffles 55. This structure facilitates the installation of the magnetic component 7 and makes it easy to control the radial position of the magnetic component 7 in the positioning cap 4 by adjusting the moving part 5.

[0041] Both the baffle 55 and the magnetic component 7 are concealed within the positioning cap 4. This structure prevents the complex cleaning environment from causing adverse effects such as obstruction between the magnetic component 7 and the coil 6, thereby improving operational reliability.

[0042] In this embodiment, a water pump assembly 8 is provided in the housing 1 below the spray arm 2 for drawing water from the spray arm 2. The lower end of the positioning rod 3 passes through the water inlet at the bottom of the spray arm 2 and extends into the water outlet channel 81 of the water pump assembly 8 below the spray arm 2, and is supported and constrained in the water outlet channel 81 by a support arm. This structure facilitates the limiting of the positioning rod 3.

[0043] The bottom of the spray arm 2 is provided with a downward-extending water inlet sleeve 21. Correspondingly, the pump assembly 8 is provided with an upward-extending water outlet channel 81 connected to the water inlet sleeve 21. The support arm 82 is cross-shaped and arranged near the lower end of the water inlet sleeve 21. The lower end of the positioning rod 3 is connected to the central intersection of the cross-shaped support arm 82. With the above structure, the positioning rod 3 is centrally arranged in the water inlet sleeve 21, which not only improves the installation stability of the positioning rod 3, but also rectifys and guides the water flow.

[0044] To facilitate the fixing of the positioning cap 4 and the positioning rod 3, a gear 31 is provided at the upper end of the positioning rod 3. Correspondingly, the lower surface of the positioning cap 4 is provided with a toothed groove 42 for the gear 31 to be inserted and meshed with for limiting its position. Manually turning the positioning cap 4 allows the meshing structure to rotate due to friction, thereby adjusting the circumferential displacement of the positioning cap 4 and the positioning rod 3.

[0045] A clearance space is formed between the first slide rod 51 and the second slide rod 52 to accommodate the tooth groove 42. This structure makes the entire speed adjustment structure more compact and saves assembly space.

[0046] In this embodiment, the magnetic component 7 is a magnet.

[0047] The spray arm 2 is equipped with an ultraviolet lamp 9 for sterilization. This ultraviolet lamp 9 is electrically connected to an electromagnetic induction structure consisting of a coil 6 and a magnetic component 7. By utilizing the electromagnetic effect to generate electricity, the power supply problem of the ultraviolet lamp on the spray arm 2 is solved, enabling the spray arm 2 to disinfect and sterilize simultaneously with spray cleaning.

[0048] In this embodiment, a coil 6 and a magnetic element 7 are installed between the spray arm 2 and the positioning cap 4. These elements create damping in a specific area as the spray arm 2 rotates. Before the cleaning program starts, the dishes requiring intensive washing are placed in the specific area. During the cleaning program, each time the spray arm 2 rotates to the specific area, a suction force is generated between the coil 6 and the magnetic element 7, slowing down the rotation speed of the spray arm 2. This prolongs the spraying time in that area, increasing the cleaning intensity and thus meeting the needs for intensive washing in that specific area. Specifically:

[0049] When the spray arm 2 rotates, the positioning cap 4 is fixed relative to the positioning rod 3. Therefore, the coil 6 on the spray arm 2 and the magnet will move relative to each other. The coil 6 will rotate relative to the positioning rod 3, while the magnet remains stationary. When the coil 6 rotates to the vicinity of the magnet, it will cut the magnetic field lines, thereby generating a voltage to drive the ultraviolet lamp load to work, which in turn generates current. Furthermore, due to the influence of Lorentz force, the magnet will exert a "pull force" on the spray arm 2, that is, it will prevent the spray arm from rotating quickly. Therefore, the rotation speed of the spray arm 2 will slow down at this position, and the corresponding area can be sprayed for a longer time.

[0050] The movable part 5 can move radially along the positioning cap 4 to adjust the distance between the magnet and the coil. When the distance is small, the Lorentz magnetic force is strong, so the spray arm rotates more slowly at the corresponding position, that is, the local spray intensity is stronger; when the distance is large, the Lorentz magnetic force is weak, so the spray arm rotates faster at the corresponding position, that is, the local spray intensity is weaker.

[0051] Users can freely adjust the positioning cap in 4 directions according to the arrangement of tableware on the dish rack to determine the local spray time, and can also adjust the position of the moving part to arbitrarily adjust the intensity and duration of the local spray.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cleaning machine, comprising a housing (1) and a spray arm (2), wherein the spray arm (2) is rotatably disposed within the housing (1) and arranged near the bottom of the housing (1), characterized in that: Also includes The positioning rod (3) is constrained at the bottom of the box (1) at the lower end and passes through the spray arm (2) at the upper end and is located above the spray arm (2); A positioning cap (4) is provided on the top of the positioning rod (3), and a connection structure is provided between the positioning cap (4) and the positioning rod (3) to lock the two in place or rotate them through a certain angle. The movable part (5) is arranged through the positioning cap (4) and can reciprocate radially along the positioning cap (4); The coil (6) is located on the spray arm (2) and is arranged close to the positioning rod (3); The magnetic component (7) is connected to the movable component (5) and adjusts the distance between itself and the coil (6) as the movable component (5) moves.

2. The cleaning machine according to claim 1, characterized in that: The movable component (5) includes a first slide rod (51) and a second slide rod (52) arranged in parallel. The first ends of the first slide rod (51) and the second slide rod (52) are connected by a first crossbar (53), and the second ends of the first slide rod (51) and the second slide rod (52) are connected by a second crossbar (54). The first slide rod (51) and the second slide rod (52) are arranged through the two opposite side walls of the positioning cap (4).

3. The cleaning machine according to claim 2, characterized in that: The positioning cap (4) has openings (41) on its two opposite side walls for the corresponding slide rods to pass through, and the openings (41) are guided and matched with the corresponding slide rods.

4. The cleaning machine according to claim 2, characterized in that: The first slide bar (51) and the second slide bar (52) are provided with downwardly extending baffles (55), the lower end of which is suspended relative to the top of the spray arm (2), and the magnetic element (7) is provided on the inner side wall of the baffle (55).

5. The cleaning machine according to claim 4, characterized in that: The baffle (55) and magnetic component (7) are both hidden inside the positioning cap (4).

6. The cleaning machine according to any one of claims 1 to 5, characterized in that: The housing (1) is provided with a water pump assembly (8) located below the spray arm (2) for drawing water for the spray arm (2). The lower end of the positioning rod (3) passes through the water inlet at the bottom of the spray arm (2) and extends into the water outlet channel (81) of the water pump assembly (8) below the spray arm (2), and is supported and constrained in the water outlet channel (81) by the support arm.

7. The cleaning machine according to claim 6, characterized in that: The bottom of the spray arm (2) is provided with a downwardly extending water inlet sleeve (21). Correspondingly, the pump assembly (8) is provided with an upwardly extending water outlet channel (81) connected to the water inlet sleeve. The support arm is cross-shaped and arranged near the lower end of the water inlet sleeve. The lower end of the positioning rod (3) is connected to the central intersection of the cross-shaped support arm.

8. The cleaning machine according to any one of claims 2 to 5, characterized in that: The upper end of the positioning rod (3) is provided with a gear (31), and correspondingly, the lower surface of the positioning cap (4) is provided with a toothed groove (42) that allows the gear to be inserted and meshed with it for positioning.

9. The cleaning machine according to claim 8, characterized in that: A clearance space is formed between the first slide bar (51) and the second slide bar (52) for the tooth groove to be accommodated.

10. The cleaning machine according to any one of claims 1 to 5, characterized in that: The spray arm (2) is equipped with an ultraviolet lamp (9) for sterilization, which is electrically connected to the electromagnetic induction structure formed by the coil (6) and the magnetic component (7).

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