Semi-automatic tableware cleaning device

Abstract

The utility model discloses a semi-automatic tableware cleaning device, which belongs to the technical field of tableware cleaning and comprises a main body shell, a motor is arranged in the main body shell, a screw rod is connected to the part, extending out of the main body shell, of an output shaft of the motor, two groups of cylindrical cleaning sponges are sleeved on the screw rod, one group is a hemisphere group, and the other group is a cylinder group. In the hemisphere set, the top of the first cleaning sponge is provided with a tightening nut arranged on the threaded rod in a sleeving mode, the bottom of the last cleaning sponge is sequentially provided with a tightening fixing piece, a hard fixing piece and a fixing nut, and all the cleaning sponges can be jointly extruded into a hemisphere shape by screwing the tightening nut to be matched with the tightening fixing piece; in the cylinder set, a hard fixing piece fixing nut and a hard fixing piece are sequentially arranged between every two pieces of cleaning sponge, a limiting fixing piece, a hard fixing piece and a fixing nut are sequentially arranged at the bottom of the last piece of cleaning sponge, manpower can be effectively liberated, and high-quality cleaning of tableware can be simply and conveniently achieved.

Description

Technical Field

[0001] This utility model relates to the field of tableware cleaning technology, and in particular to a semi-automatic tableware cleaning device. Background Technology

[0002] In the catering industry, the cleaning of tableware is of paramount importance. Most mainstream dishwashers use a combination of high-pressure spraying and chemical detergents, using water heated to 60-80℃ to rinse the surface of the tableware and remove grease. However, the spray system can create cleaning blind spots on the curved inner walls of bowls, requiring specialized detergents to remove stubborn stains. While ultrasonic dishwashers offer strong cleaning power, they are noisy and expensive; oxygen-enriched dishwashers are energy-efficient but have low cleaning efficiency, and both require professional installation and maintenance. Furthermore, for small street-side restaurants or households, the purchase and maintenance costs of any type of dishwasher are prohibitive, making them unsuitable as a first choice. Therefore, manual washing or simple semi-automatic cleaning tools are often still used. Manual dishwashing often relies on traditional sponges or brushes, which can lead to hand fatigue over time. Prolonged contact with water can also damage hands. Furthermore, stubborn stains (such as rice paste or burnt stains) require repeated scrubbing, which is difficult to do manually and results in high labor costs. Some electric dishwashing brushes, like the CN221105760U, use motor-driven brush heads that are often cylindrical or flat, making it difficult to conform to the curved surface of a bowl, resulting in insufficient cleaning coverage. They also require customization to fit the bowl's size. Traditional brush heads are ineffective at cleaning and replacing them is inconvenient, making it difficult to handle the high volume of dishes to be washed daily. Utility Model Content

[0003] The technical problem this invention aims to solve is to provide a semi-automatic dishwashing device. It is designed to replace manual labor, while also improving the brush head to better fit the bottom of the bowl, effectively enhancing dishwashing efficiency and cleaning results.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a semi-automatic tableware cleaning device, including a main body shell, a motor is installed inside the main body shell, and a screw is connected to the part of the motor's output shaft extending out of the main body shell. Two sets of cylindrical cleaning sponges are sleeved on the screw, one set being a hemispherical group and the other a cylindrical group. In the hemispherical group, the top of the first cleaning sponge is provided with a tightening nut sleeved on the screw, and the bottom of the last cleaning sponge is provided with a tightening fixing plate, a rigid fixing plate, and a fixing nut in sequence. By tightening the tightening nut in conjunction with the tightening fixing plate, all the cleaning sponges can be squeezed together into a hemispherical shape. In the cylindrical group, a rigid fixing plate, a fixing nut, and a rigid fixing plate are provided in sequence between every two cleaning sponges, and the bottom of the last cleaning sponge is provided with a limit fixing plate, a rigid fixing plate, and a fixing nut in sequence.

[0005] A further improvement of this utility model is that the rigid fixing piece is a hollow circular plastic or nylon piece, and the tightening fixing piece is also a hollow circular plastic or nylon piece with a larger radius than the rigid fixing piece.

[0006] A further improvement of this utility model is that: the main body shell is set inside the sink, the bottom of the main body shell is provided with an anti-slip pad, and the side wall is connected and fixed to the side wall of the sink by adhesive snap fasteners.

[0007] A further improvement of this utility model is that the output shaft of the motor is connected to the screw via a coupling.

[0008] A further improvement of this utility model is that: there are through holes on the side wall of the main body shell, and a stepped guide sealing block is embedded in the through hole. The stepped guide sealing block is hollow and a bearing adapted to the output shaft of the motor is embedded inside.

[0009] A further improvement of this utility model is that a waterproof sealing ring is provided between the through hole on the side wall of the main body shell and the stepped guide sealing block.

[0010] A further improvement to the technical solution of this utility model is that the cleaning sponge is made of wood pulp cotton.

[0011] A further improvement of this utility model is that the rotation direction of the motor's output shaft is the same as the tightening direction of the fixing nut and the tightening nut.

[0012] The technological advancements achieved by this invention, thanks to the aforementioned technical solution, are as follows: By using multiple uniformly sized circular sponges threaded onto a screw and compressed into a hemispherical sponge assembly, the raw materials are readily available, eliminating the need for customization, and installation and replacement are also convenient. Furthermore, the compressed hemispherical sponge has grooved surfaces. A rotating shaft drives the sponge to rotate 360 ​​degrees, allowing the spherical surface to adapt to changes in the curvature of the bowl's inner wall. The grooves also provide a scraping effect during 360° rotation, achieving thorough cleaning without dead angles, resulting in a better cleaning effect than custom-made hemispherical sponges. By setting fixing plates and nuts between each sponge piece in the cylindrical assembly, each sponge can be individually secured, preventing the hemispherical sponge from becoming stuck in the bowl during frequent washing, causing the shaft to spin freely and making cleaning difficult. Simultaneously, the nuts and fixing plates between the cylindrical assembly effectively isolate and position the sponges, maintaining the distance between them and preventing them from narrowing over time, becoming a thin sheet that reduces the cleaning area and makes it difficult to clean the outer surface of the bowl. The cylindrical assembly is used to polish and clean the outer walls of bowls or plates. During the cleaning process, due to the oblique contact, the sponge tends to curl backward, affecting the cleaning effect. Therefore, a large limiting and fixing piece is placed at the bottom of the last sponge in the cylindrical assembly to limit the sponge's backward deformation, reduce curling deformation, and ensure effective cleaning of the tableware's outer walls. A coupling is used to fix the drive shaft and screw, which not only facilitates disassembly and sponge replacement but also broadens applicability, accommodating screws of various diameters. A stepped guide seal is used, with the motor's output shaft extending out of the main body housing through the stepped guide seal. The portion of the stepped guide seal extending out of the housing effectively clamps and guides the output shaft, preventing instability during rotation when the output shaft is excessively long. Simultaneously, the truncated cone combined with the sealing ring also provides waterproofing and moisture protection, preventing water from entering the main body housing and affecting the motor when the rotating shaft drives the hemispherical cleaning sponge to scrub the dishes. By setting the rotation direction of the motor output shaft and the tightening direction of the fixing nut to be the same, when the output shaft drives the screw to rotate for washing dishes over a long period of time, because the rotation direction is the same, it will only tighten more and more, and there will be no situation where the hemispherical cleaning sponge becomes loose and the cleaning effect is poor, thus effectively extending the service life. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1This is a schematic diagram of the overall structure of the semi-automatic tableware cleaning device of this utility model;

[0015] Figure 2 This is a schematic diagram of the hemispherical cleaning sponge after compression according to this utility model;

[0016] Figure 3 This is an exploded view of the hemispherical cleaning sponge of this utility model before it is compressed.

[0017] Among them, 1. motor, 2. stepped guide seal block, 3. main body shell, 4. coupling, 5. screw, 6. cleaning sponge, 7. rigid fixing plate, 8. fixing nut, 9. tightening fixing plate, 10. tightening nut. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments:

[0019] like Figure 1 The diagram shows a semi-automatic dishwashing device, comprising a rectangular main body shell 3, inside which a motor is housed, and a non-slip pad at the bottom. The main body shell 3 is placed inside a sink, and its side walls are connected and fixed to the sink side walls via adhesive snaps. A circular through-hole is provided on the other side of the main body shell 3, into which a stepped guide sealing block 2 is embedded. The stepped guide sealing block 2 is a one-piece molded component with a cuboid base and a cylindrical top. The cuboid base, with a larger diameter, remains inside the main body shell 3, while the square base is fixed to the inside of the main body shell 3 at its four corners by bolts. The cylindrical head, with a smaller diameter and size adapted to the through-hole, extends outside the main body shell 3. For stability and waterproofing, a sealing ring is provided between the through-hole and the cylindrical head. The stepped guide seal block 2 has a bearing flush-embedded inside. The inner diameter of the bearing is adapted to the outer radial direction of the output shaft of the motor 1. The length of the bearing is the same as the length of the stepped guide seal block 2. The output shaft of the motor 1 passes through the bearing and extends out of the main body shell 3. It is then clamped by the stepped guide seal block 2, which can ensure that the long output shaft extension can still be kept in the horizontal direction and be stable during rotation. At the same time, the sealing ring and the stepped guide seal block 2 can ensure that the inside of the main body shell 3 is in a sealed state, and no external factors will enter the shell and affect the motor, which can greatly ensure the service life.

[0020] A horizontally positioned screw 5 is connected to the motor output shaft via a coupling 4, such as... Figure 3As shown, several cylindrical cleaning sponges 6 of the same specification are concentrically fitted on the screw 5. The cleaning sponges 6 are divided into two groups: one hemispherical group and one cylindrical group. In this embodiment, there are a total of 6 cleaning sponges 6, including 4 hemispherical groups and 2 cylindrical groups. There is no obstruction between the 4 cleaning sponges 6 in the hemispherical group, and they are in direct contact on the screw 5. The top of the first cleaning sponge 6 in the hemispherical group is provided with a tightening nut 10 fitted on the screw, and the tightening nut is flush with the top of the screw. The bottom of the last cleaning sponge 6 is provided with a tightening fixing piece 9, a rigid fixing piece 7, and a fixing nut 8, which are concentrically fitted on the screw 5. The internal threads of the fixing nut 8 and the tightening nut 10 are adapted to the external threads of the screw 5, and can be fixed by mutual meshing. By rotating and tightening the tightening nut 10, the tightening fixing piece 9 at the bottom is simultaneously tightened along the screw 5. Figure 3 By squeezing the cleaning sponge 6 of the hemispherical assembly in the direction of compression, all four cleaning sponges 6 between the tightening nut 10 and the tightening fixing plate 9 can be squeezed together into a hemispherical shape. The squeezed hemispherical shape is as follows: Figure 2 As shown, the cleaning primarily relies on the deformation of the first and second cleaning sponges. The cylindrical sponge, tightened from the center, deforms inwards at the edges, compressing into a hemispherical shape. The tightening nut 10 controls the center of this inward contraction, preventing any protrusions or leaks. Simultaneously, the hemispherical surface has grooves along its edges. A rotating shaft drives the sponge to rotate 360 ​​degrees. The spherical surface adapts to the curvature of the bowl's inner wall, and the grooves provide a scraping effect during the 360° rotation, achieving thorough cleaning without blind spots. The cleaning effect is better than a custom-made hemispherical sponge. Furthermore, this cylindrical cleaning sponge is easier to replace and has a lower cost.

[0021] The cylindrical assembly consists of two cleaning sponges 6. The top of the first cleaning sponge 6 in the cylindrical assembly is equipped with a rigid fixing plate 7. Between the cleaning sponges 6 in the cylindrical assembly are the rigid fixing plate 7, the fixing nut 8, and the rigid fixing plate 7. The thickness of the two rigid fixing plates plus the thickness of the fixing nut 8 is approximately equal to the thickness of each cleaning sponge. This arrangement between the two cleaning sponges 6 serves two purposes: firstly, it provides a fixing function, and secondly, it ensures that the overall cleaning sponge 6 does not become stuck in the bowl when washing dishes, causing the axis to spin freely and making it difficult to clean the bowl. It also effectively blocks and positions the sponges, maintaining the distance between them and preventing them from narrowing over time. This prevents the sponges from squeezing together into a thin sheet after being wet, which would narrow the area for polishing and cleaning. Although each cleaning sponge 6 is separated by a rigid fixing piece 7 and a fixing nut at its center, due to the excellent extensibility of the porous material of the cleaning sponge 6, deformation only occurs in the middle. The rigid fixing piece 7 and the fixing nut are then encased between the two cleaning sponges 6, and the edges of the two cleaning sponges 6 remain tightly fitted. Figure 1As shown. The bottom of the last cleaning sponge 6 in the cylindrical assembly is provided with a limiting fixing plate 11, a rigid fixing plate 7, and a fixing nut 8, which are concentrically sleeved on the screw 5.

[0022] The rigid fixing piece 7 is a hollow circular plastic or nylon sheet, concentrically fitted onto the screw 5, and clamped in conjunction with the fixing nut of each cleaning sponge 6. The tightening fixing piece 9 and the limiting fixing piece 11 are both hollow circular plastic or nylon sheets, with a radius larger than the rigid fixing piece 7 but slightly smaller than the radius of the cylindrical cleaning sponge. The cylindrical assembly is used to polish and clean the outer wall of bowls or plates. During the cleaning process, due to the oblique contact, the sponge will curl backward and deform, affecting the cleaning effect. Therefore, a larger limiting fixing piece 11 is set at the bottom of the last sponge in the cylindrical assembly to limit the sponge, block the backward deformation, reduce the curling deformation, and ensure the cleaning effect on the outer wall of the tableware.

[0023] All cleaning sponges are made of wood pulp cotton, which is not only more durable but also provides excellent cleaning performance. All fixing nuts 8 and tightening nuts 10 are installed in the same direction, specifically, the tightening direction of the nuts is the same as the rotation direction of the output shaft of motor 1. This ensures that as the motor continuously rotates and drives the hemispherical sponge to scrub dishes, the sponge will not loosen with continuous rotation; instead, it will tighten, preventing the hemispherical cleaning sponge from becoming loose and resulting in poor cleaning performance, thus effectively extending its service life.

[0024] In use, the main body is secured to the sink using adhesive snaps. Motor 1 starts, rotating the output shaft, which in turn drives the screw, causing the hemispherical cleaning sponge assembly to rotate continuously. The dirty bowl to be cleaned can then be held manually, lathered with dish soap, and placed on the hemispherical sponge assembly. The continuously rotating sponge assembly rubs and cleans the inside of the bowl's bottom. The grooves squeezed out by the hemispherical sponge during its 360° rotation also have a scraping effect, completing the cleaning of the bowl's interior. After cleaning the bottom of the bowl, the outer wall of the bowl is rubbed and cleaned on the cylindrical assembly. Similarly, flat tableware such as plates can also be rubbed and cleaned on the cylindrical assembly. This method allows the user to simply hold or clip the tableware with both hands, eliminating the need for manual brushing, greatly saving labor costs, effectively avoiding prolonged contact with water and potential hand damage, and ensuring a very thorough cleaning—much cleaner than hand brushing.

[0025] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A semi-automatic tableware cleaning device, comprising a main body shell (3), wherein a motor (1) is disposed inside the main body shell (3), characterized in that: The output shaft of the motor (1) extends out of the outer part of the main body shell (3) and is connected to a screw (5). Two sets of cylindrical cleaning sponges (6) are sleeved on the screw (5), one set is a hemispherical set and the other set is a cylindrical set. In the hemispherical set, the top of the first cleaning sponge (6) is provided with a tightening nut (10) sleeved on the screw (5), and the bottom of the last cleaning sponge (6) is provided with a tightening fixing plate (9), a hard fixing plate (7) and a fixing nut (8) in sequence. By tightening the tightening nut (10) in conjunction with the tightening fixing plate (9), all the cleaning sponges (6) can be squeezed into a hemispherical shape. In the cylindrical set, a hard fixing plate (7), a fixing nut (8) and a hard fixing plate (7) are provided in sequence between every two cleaning sponges (6), and the bottom of the last cleaning sponge (6) is provided with a limit fixing plate (11), a hard fixing plate (7) and a fixing nut (8) in sequence.

2. The semi-automatic tableware cleaning device according to claim 1, characterized in that: The rigid fixing piece (7) is a hollow circular plastic or nylon piece, the tightening fixing piece (9) is a hollow circular plastic or nylon piece with a radius larger than the rigid fixing piece (7), and the limiting fixing piece (11) is a hollow circular plastic or nylon piece with a radius larger than the rigid fixing piece (7).

3. The semi-automatic tableware cleaning device according to claim 1, characterized in that: The main body shell (3) is set inside the sink. The bottom of the main body shell (3) is provided with an anti-slip pad, and the side wall is connected and fixed to the side wall of the sink by adhesive snap fasteners.

4. A semi-automatic tableware cleaning device according to claim 1, characterized in that: The output shaft of the motor (1) is connected to the screw (5) via a coupling (4).

5. A semi-automatic tableware cleaning device according to claim 1, characterized in that: The main body shell (3) has a through hole on its side wall, and a stepped guide sealing block (2) is embedded in the through hole. The stepped guide sealing block (2) is hollow and has a bearing that is compatible with the output shaft of the motor (1) embedded inside.

6. A semi-automatic tableware cleaning device according to claim 5, characterized in that: A waterproof sealing ring is provided between the through hole on the side wall of the main body shell (3) and the stepped guide sealing block (2).

7. A semi-automatic tableware cleaning device according to claim 1, characterized in that: The cleaning sponge (6) is made of wood pulp cotton.

8. A semi-automatic tableware cleaning device according to claim 7, characterized in that: The rotation direction of the output shaft of the motor (1) is the same as the tightening direction of the fixing nut (8) and the tightening nut (10).

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