Workpiece cleaning device for machining

Abstract

The utility model discloses a workpiece cleaning device for machining, which comprises a cleaning pool, a clamping mechanism, a sweeping mechanism, a moving mechanism and a water spraying system, the clamping mechanism for clamping a workpiece is arranged in the cleaning pool, and the clamping mechanism comprises a first clamping frame, a second clamping frame and an adjustable second threaded rod; the clamping position can be flexibly adjusted according to the size of a workpiece; the cleaning mechanism comprises a U-shaped frame, a cleaning roller, a second motor and an L-shaped plate, the cleaning roller is driven by the second motor to rotate, and the height is adjusted through an electric push rod, so that the cleaning roller clings to the surface of the workpiece for scrubbing; the moving mechanism comprises a concave plate, a moving frame, a first threaded rod and a first motor and can drive the sweeping mechanism to move along the surface of the workpiece, and large-range uniform sweeping is achieved. The water spraying system is composed of a water pump, a water spraying tank, a filter screen and a drainage pipe, cleaning liquid is conveyed to the water spraying tank after being filtered by the filter screen, and cleaning liquid is evenly sprayed through multiple water spraying holes in the bottom of the water spraying tank to improve the cleaning effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of cleaning equipment, specifically relates to a workpiece cleaning device for machining. BACKGROUND

[0002] During the machining process, the workpiece will often be attached with oil stains, metal debris or other pollutants after production and manufacturing, and if these pollutants are not cleaned in time, not only the subsequent machining quality of the workpiece will be affected, but also the product performance will be adversely affected, and even the service life of the equipment will be affected. Therefore, workpiece cleaning has become an important link in machining. At present, the cleaning methods of workpieces mainly include manual cleaning and mechanical cleaning.

[0003] The traditional manual cleaning method usually adopts manual brushing or high-pressure water gun spraying, but this method has the following problems: first, the manual cleaning efficiency is low, especially for the cleaning demand of a large number of workpieces, the manual method is difficult to meet the production rhythm; second, the manual cleaning is greatly affected by human factors, and the cleaning effect is unstable, and the problem of incomplete local cleaning is easy to occur; in addition, the cleaning liquid consumption is large in the process of manual cleaning, which is difficult to recycle, increases the cleaning cost, and may pollute the environment.

[0004] Compared with manual cleaning, mechanical cleaning equipment can improve the cleaning efficiency and reduce the dependence on manual operation, and has been widely used in industrial production. However, the existing mechanical cleaning equipment still has certain technical defects: some equipment adopts fixed spraying cleaning, which is difficult to effectively adjust to workpieces of different sizes and shapes, resulting in the existence of cleaning blind area; the cleaning mechanism of some equipment cannot be flexibly adjusted, resulting in poor cleaning effect of complex-shaped workpieces; in addition, the recycling method of cleaning liquid in the existing cleaning device is simple, the filtering effect is limited, and the cleaning liquid is easy to deteriorate after long-term use, which needs to be replaced frequently, affecting the production efficiency. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a workpiece cleaning device for machining, which can fix workpieces of different sizes through an adjustable clamping mechanism, and combine a liftable cleaning mechanism and a rotating cleaning roller to clean the surface of the workpiece efficiently, and at the same time, adopt a circulating filtration system to improve the utilization rate of the cleaning liquid, so as to improve the cleaning quality of the workpiece, reduce the consumption of the cleaning liquid, and optimize the cleaning process.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A workpiece cleaning device for machining, comprising a cleaning pool, a drain pipe for facilitating replacement of cleaning liquid in the cleaning pool is fixedly arranged at the bottom of one side of the cleaning pool and a valve is installed;

[0008] The cleaning tank is provided with a clamping mechanism for clamping the workpiece;

[0009] The cleaning tank is provided with a cleaning mechanism for cleaning the workpiece;

[0010] One side of the cleaning tank is provided with a moving mechanism for moving the cleaning mechanism.

[0011] Further, the clamping mechanism comprises a first clamping frame, a second clamping frame, a second threaded rod and a long plate, the two sides of the first clamping frame are respectively slidably connected with the two side inner walls of the cleaning tank, the two ends of the second clamping frame are respectively fixedly connected with the two side inner walls of the cleaning tank, the second threaded rod is threadedly connected with the long plate, one end of the second threaded rod is rotatably connected with one side of the first clamping frame, the first clamping frame and the second clamping frame are both L-shaped, and the other end of the second threaded rod is fixedly provided with a knob facilitating rotation of the second threaded rod.

[0012] Further, the cleaning mechanism comprises a U-shaped frame, a second motor, a cleaning roller and an L-shaped plate, one side of the second motor is fixedly connected with one side of the U-shaped frame, the two ends of the cleaning roller are rotatably connected with the two side inner walls of the U-shaped frame, the output end of the second motor penetrates one side of the U-shaped frame and is fixedly connected with one end of the cleaning roller, and the bottom of the L-shaped plate is fixedly connected with one side of the top of the U-shaped frame.

[0013] Further, the moving mechanism comprises a concave plate, a moving frame, a first threaded rod and a first motor, one side of the concave plate is fixedly connected with one side of the cleaning tank, the moving frame is C-shaped, one end of the moving frame is slidably connected with one side inner wall of the concave plate, the two ends of the first threaded rod are rotatably connected with the two side inner walls of the concave plate, one side of the first motor is fixedly connected with one side of the concave plate, the output end penetrates one side of the concave plate and is fixedly connected with one end of the first threaded rod, one end of the moving frame is provided with a threaded hole, and the first threaded rod is threadedly connected with the threaded hole.

[0014] Further, one side top of the cleaning tank is fixedly provided with a support plate, the top of the support plate is fixedly provided with a water pump, the input port of the water pump is fixedly provided with a suction pipe, one end of the suction pipe is fixedly connected with the bottom of one side of the cleaning tank and communicates with the cleaning tank, one side of the cleaning tank is fixedly provided with a filter screen for filtering, the filter screen covers the hole through which the suction pipe and the cleaning tank communicate, the output port of the water pump is fixedly provided with a second fixed pipe, one end of the second fixed pipe is fixedly provided with a flexible hose, one end of the flexible hose is fixedly provided with a first fixed pipe, one end of the first fixed pipe is fixedly provided with a water spraying box and communicates with the water spraying box, the bottom of the water spraying box is provided with a plurality of water spraying holes, and the top of the water spraying box is fixedly connected with the top inner wall of the L-shaped plate.

[0015] Further, the top inner wall of one end of the moving frame is fixedly provided with an electric push rod for adjusting the height of the cleaning roller, and the telescopic part of the electric push rod is fixedly connected with the top of the L-shaped plate.

[0016] Further, the top of the cleaning tank is fixedly provided with a water baffle on both sides for blocking water.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The workpiece cleaning device for machining provided by the utility model is high in efficiency, adjustable, and capable of improving workpiece cleaning effect, reducing cleaning cost, and meeting the cleaning requirements of workpieces of different specifications.

[0019] Compared with the traditional fixed clamping mode, the first clamping frame and the second clamping frame both adopt L-shaped structures, and the first clamping frame can adjust the position through the second threaded rod, so that the device can be adapted to workpieces of different sizes, improving the versatility.

[0020] The cleaning roller is driven to rotate by the second motor and cooperates with the electric push rod with adjustable height, so that the cleaning roller can tightly adhere to the surface of the workpiece for efficient scrubbing, avoiding the defect that the traditional fixed brush roller is difficult to clean the surface of a complex workpiece.

[0021] The cleaning roller adopts a flexible silica gel brush or a wear-resistant nylon brush, which can reduce damage to the surface of the workpiece while ensuring cleaning effect and is suitable for cleaning requirements of various machining parts.

[0022] The utility model discloses a circulating filtration system is set up, and the bottom of cleaning pool is equipped with the extraction pipe, and the extraction pipe is connected with water pump, and the cleaning fluid is filtered through the filter screen, avoids the metal scrap or dirt to enter the water pump, causes the block or influence to spray effect. The cleaning fluid is backflowed to the water spray tank after filtering, realizes the recycling, reduces the waste of cleaning fluid, reduces production cost, and the pollution to the environment of waste liquid discharge is reduced. The bottom of cleaning pool is equipped with the drain pipe still, and is equipped with control valve, can discharge waste liquid through the drain pipe after using a period of time to cleaning fluid, conveniently replaces the new cleaning fluid, guarantees the cleanliness of cleaning fluid, improves the cleaning quality.

[0023] The water baffle of the utility model is arranged at both sides of the top of cleaning pool, can effectively prevent the splashing of water during the cleaning process, avoid the waste of cleaning fluid, and keep the neatness of the operation environment. The water baffle adopts corrosion-resistant transparent material, which not only ensures the visibility of the cleaning process, but also improves the protection effect of the device and optimizes the user experience.

[0024] The utility model discloses compact overall structure adopts modular design, is convenient for installation and maintenance. All components adopt corrosion-resistant material, guarantee the stability of long -term use, improve equipment life. The device improves the cleaning efficiency and cleanliness of the machined workpiece through the optimized combination of workpiece clamping, cleaning, spraying and filtering functions, can adapt to the workpiece cleaning demand of different shapes and sizes, improve production efficiency, and reduce the cost of manual cleaning, provide an efficient, environmental protection, economic workpiece cleaning scheme for the machining industry. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the front view structural schematic drawing of the utility model;

[0026] Figure 2 It is the side view structural schematic drawing of the utility model;

[0027] Figure 3 It is the side view structural schematic drawing of the utility model;

[0028] Figure 4 It is the partial structure schematic drawing of the utility model.

[0029] In the drawings, the component list represented by each sign is as follows:

[0030] 1, cleaning pool;2, water baffle;3, moving mechanism;31, moving frame;32, concave plate;33, first threaded rod;34, first motor;4, cleaning mechanism;41, U-shaped frame;42, L plate;43, cleaning roller;44, second motor;5, first fixed pipe;51, flexible hose;52, second fixed pipe;53, extraction pipe;54, water spray tank;6, support plate;7, clamping mechanism;71, first clamping frame;72, second threaded rod;73, long plate;74, second clamping frame. DETAILED DESCRIPTION

[0031] In order to make the purpose and advantages of the utility model more clear and apparent, the utility model is specifically described below in combination with embodiments. It should be understood that the following text is merely used to describe one or several specific embodiments of the utility model and does not strictly limit the scope of protection specifically requested by the utility model.

[0032] As shown in Figures 1-4 A workpiece cleaning device for machining, comprising a cleaning tank 1, the main body of the cleaning tank 1 is made of corrosion-resistant stainless steel material to ensure corrosion resistance and structural stability during long-term use; the internal volume of the cleaning tank 1 can be selected as 50L, 100L or larger specifications according to the size of the workpiece to meet the cleaning needs of workpieces of different specifications; a drain pipe is fixedly arranged at the bottom of one side of the cleaning tank 1 to facilitate the replacement of cleaning liquid in the cleaning tank 1, the drain pipe is made of corrosion-resistant PVC pipe or stainless steel pipe and is installed with a ball valve for controlling flow to facilitate the discharge of waste liquid and the replacement of cleaning liquid, thereby improving the recycling rate of the cleaning process; the drain pipe is in communication with the inside of the cleaning tank 1 and is designed with an anti-blocking net to prevent larger impurity particles from entering the pipeline during the cleaning process and causing blockage.

[0033] A clamping mechanism 7 for clamping the workpiece is arranged in the cleaning tank 1, the clamping mechanism 7 can be flexibly adjusted according to the size of the workpiece to adapt to mechanical machining workpieces of different specifications; the design of the clamping mechanism 7 ensures that the workpiece can be stably fixed during the cleaning process and can withstand water flow impact and friction of the cleaning roller in different directions to prevent displacement of the workpiece affecting the cleaning effect.

[0034] A cleaning mechanism 4 for cleaning the workpiece is arranged in the cleaning tank 1, the cleaning mechanism 4 can efficiently mechanically clean the surface of the workpiece, physically scrub the residual dirt, oil stains and metal chips on the surface of the workpiece through the rotating cleaning roller 43, and improve the decontamination effect in cooperation with water spraying cleaning; the height and position of the cleaning mechanism 4 are adjustable to adapt to the cleaning needs of workpieces of different sizes.

[0035] A moving mechanism 3 for moving the cleaning mechanism 4 is arranged at one side of the cleaning tank 1, the moving mechanism 3 is driven by a motor to enable the cleaning mechanism 4 to move stably along the internal track of the cleaning tank 1, realize large-area workpiece cleaning, and improve cleaning uniformity.

[0036] As shown in Figure 3As shown, the clamping mechanism 7 includes a first clamping frame 71, a second clamping frame 74, a second threaded rod 72 and a long plate 73; both sides of the first clamping frame 71 are respectively connected with the inner walls of both sides of the cleaning tank 1 in a sliding manner, so as to adjust according to the size of the workpiece; both ends of the second clamping frame 74 are respectively fixedly connected with the inner walls of both sides of the cleaning tank 1, so as to ensure the stable clamping of the workpiece; the first clamping frame 71 and the second clamping frame 74 are both in L-shaped structure and are made of high-strength aluminum alloy or stainless steel material, so as to ensure the clamping strength and durability; the second threaded rod 72 is made of high-strength stainless steel material and is threadedly connected with the long plate 73; the sliding position of the first clamping frame 71 is adjusted by rotation, so that the clamping distance is adapted to workpieces of different specifications; one end of the second threaded rod 72 is rotatably connected with one side of the first clamping frame 71, and the other end is fixedly provided with a knob facilitating rotation of the second threaded rod 72; the knob is designed with a rubber-wrapped handle, so as to improve the operation comfort and prevent slipping.

[0037] As shown in Figures 1-4 The cleaning mechanism 4 includes a U-shaped frame 41, a second motor 44, a cleaning roller 43 and an L plate 42; the U-shaped frame 41 is made of high-strength stainless steel material and is internally provided with a ball bearing, so as to reduce the friction resistance when the cleaning roller 43 rotates and improve the cleaning efficiency; one side of the second motor 44 is fixedly connected with one side of the U-shaped frame 41; the power of the second motor 44 can be selected from 100W-300W, so as to ensure the efficient rotation of the cleaning roller 43; both ends of the cleaning roller 43 are rotatably connected with the inner walls of both sides of the U-shaped frame 41 and are made of wear-resistant nylon brush or flexible silica gel brush, so as to ensure that the workpiece surface will not be damaged during cleaning; the output end of the second motor 44 penetrates through one side of the U-shaped frame 41 and is fixedly connected with one end of the cleaning roller 43, so that the cleaning roller 43 can rotate at high speed and effectively remove dirt on the surface of the workpiece; the bottom of the L plate 42 is fixedly connected with one side of the top of the U-shaped frame 41; the L plate 42 is made of 304 stainless steel or aluminum alloy, so as to improve the overall structural stability.

[0038] As shown in Figures 1-2As shown, the moving mechanism 3 comprises a concave plate 32, a moving frame 31, a first threaded rod 33 and a first motor 34; one side of the concave plate 32 is fixedly connected with one side of the cleaning pool 1, the concave plate 32 is made of stainless steel plate with CNC machining precision of ±0.05mm to ensure the accuracy of the moving track; the moving frame 31 is in C shape and is designed with aluminum alloy frame to improve rigidity and reduce weight; one end of the moving frame 31 is slidingly connected with the inner wall of one side of the concave plate 32 to ensure smooth movement; both ends of the first threaded rod 33 are rotatably connected with the inner walls of both sides of the concave plate 32, the first threaded rod 33 adopts a ball screw structure to improve transmission accuracy and reduce friction loss; one side of the first motor 34 is fixedly connected with one side of the concave plate 32, and the output end penetrates one side of the concave plate 32 and is fixedly connected with one end of the first threaded rod 33 to provide stable driving force; one end of the moving frame 31 is provided with a threaded hole, and the first threaded rod 33 is screwed with the threaded hole to enable the moving frame 31 to stably slide along the concave plate 32.

[0039] As shown in Figure 1 , a support plate 6 is fixedly arranged at the top of one side of the cleaning pool 1, and a water pump is fixedly arranged at the top of the support plate 6; the water pump is made of corrosion-resistant and high-temperature-resistant stainless steel material, and the flow rate can be selected from 30L / min to 100L / min to meet different working condition requirements; an extraction pipe 53 is fixedly arranged at the input port of the water pump, the extraction pipe 53 is made of acid and alkali resistant hose material to ensure that there is no leakage during the transmission of the cleaning liquid; one end of the extraction pipe 53 is fixedly connected and communicated with the bottom of one side of the cleaning pool 1 to ensure that the cleaning liquid can be fully recycled; a filter screen 8 for filtering is fixed to one side of the cleaning pool 1 by bolts, the filter screen 8 is made of stainless steel mesh, and the aperture can be selected from 0.5mm to 2mm to effectively filter metal scraps and dirt; a second fixed pipe 52 is fixedly arranged at the output port of the water pump, the material of the second fixed pipe 52 can be selected from stainless steel or high-strength plastic, and an extension hose 51 is fixedly arranged, one end of the extension hose 51 is fixedly arranged with a first fixed pipe 5, and one end of the first fixed pipe 5 is fixedly arranged with a water spraying box 54 and is in communication; a plurality of water spraying holes are arranged at the bottom of the water spraying box 54, and the diameter of the water spraying holes can be selected from 1mm to 3mm to ensure uniform spraying of the cleaning liquid; the top of the water spraying box 54 is fixedly connected with the top inner wall of the L-shaped plate 42 to ensure the stability of the cleaning process.

[0040] As shown in Figure 1 , the top inner wall of one end of the moving frame 31 is fixedly arranged with an electric push rod for adjusting the height of the cleaning roller 43; the electric push rod is driven by DC 24V, and the stroke can be selected from 50mm to 200mm to enable the cleaning roller 43 to adjust the height according to the shape of the workpiece, thereby improving the cleaning effect; the extension part of the electric push rod is fixedly connected with the top of the L-shaped plate 42 to ensure the adjustment accuracy of the cleaning roller 43.

[0041] AsFigure 1 As shown, the top of the cleaning pool 1 is fixed on both sides of the water baffle 2 for water, water baffle 2 with corrosion-resistant transparent polycarbonate material, to prevent splashing during the cleaning process, improve the cleanliness of the cleaning environment.

[0042] The working principle of the utility model is: when using, add appropriate amount of cleaning fluid (can be water, cleaning special cleaning fluid, etc., can be selected according to actual needs) to the cleaning pool 1, adjust the clamping mechanism 7 according to the size of the workpiece to be cleaned, make the first clamping frame 71 slide in the cleaning pool 1 by rotating the knob at one end of the second threaded rod 72, until the distance between the first clamping frame 71 and the second clamping frame 74 is suitable for clamping the workpiece, place the workpiece between the first clamping frame 71 and the second clamping frame 74, and rotate the knob to make the first clamping frame 71 and the second clamping frame 74 tighten the workpiece, start the electric push rod, adjust the height of the L plate 42 by the electric push rod extension, and then adjust the height of the cleaning roller 43, to ensure that the cleaning roller 43 can contact the surface of the workpiece for cleaning, start the second motor 44 to drive the cleaning roller 43 to rotate in the U-shaped frame 41, start the first motor 34, and make the moving frame 31 slide on the concave plate 32 by the threaded connection of the first threaded rod 33 and the moving frame 31, so as to drive the cleaning mechanism 4 to move, start the water pump, the water pump draws cleaning fluid from the cleaning pool 1 through the suction pipe 53, filters through the filter screen 8, and then is transported to the water spraying box 54 through the second fixed pipe 52, the flexible hose 51 and the first fixed pipe 5, the multiple water spraying holes at the bottom of the water spraying box 54 uniformly spray cleaning fluid on the surface of the workpiece, which can improve the cleaning effect in cooperation with the cleaning effect of the cleaning roller 43, the water splashing during cleaning can be blocked by the water baffle 2, the sprayed cleaning fluid will flow into the cleaning pool 1 and be filtered through the filter screen 8 for recycling, when the cleaning fluid in the cleaning pool 1 needs to be replaced, the old cleaning fluid can be discharged by opening the valve on the drain pipe, and then new cleaning fluid is added, wherein the first motor 34, the second motor 44, the water pump and the electric push rod need to be controlled by an external controller and powered by an external power supply when in use.

[0043] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. A workpiece cleaning device for machining, comprising a cleaning tank (1), characterized in that: One side bottom of the cleaning pool (1) is fixedly provided with a drain pipe for facilitating replacement of cleaning liquid in the cleaning pool (1) and is provided with a valve. The cleaning pool (1) is provided with a clamping mechanism (7) for clamping workpieces. The cleaning pool (1) is provided with a cleaning mechanism (4) for cleaning workpieces. One side of the cleaning pool (1) is provided with a moving mechanism (3) for moving the cleaning mechanism (4).

2. The workpiece cleaning apparatus of claim 1, wherein: The clamping mechanism (7) comprises a first clamping frame (71), a second clamping frame (74), a second threaded rod (72) and a long plate (73), the two sides of the first clamping frame (71) are respectively slidably connected with the two side inner walls of the cleaning pool (1), the two ends of the second clamping frame (74) are respectively fixedly connected with the two side inner walls of the cleaning pool (1), the second threaded rod (72) is threadedly connected with the long plate (73), one end of the second threaded rod (72) is rotatably connected with one side of the first clamping frame (71), the first clamping frame (71) and the second clamping frame (74) are both L-shaped, and the other end of the second threaded rod (72) is fixedly provided with a knob for facilitating rotation of the second threaded rod (72).

3. The workpiece cleaning apparatus of claim 1, wherein: The cleaning mechanism (4) comprises a U-shaped frame (41), a second motor (44), a cleaning roller (43) and an L-shaped plate (42), one side of the second motor (44) is fixedly connected with one side of the U-shaped frame (41), the two ends of the cleaning roller (43) are rotatably connected with the two side inner walls of the U-shaped frame (41), the output end of the second motor (44) penetrates one side of the U-shaped frame (41) and is fixedly connected with one end of the cleaning roller (43), and the bottom of the L-shaped plate (42) is fixedly connected with one side of the top of the U-shaped frame (41).

4. The workpiece cleaning apparatus of claim 1, wherein: The moving mechanism (3) comprises a concave plate (32), a moving frame (31), a first threaded rod (33) and a first motor (34), one side of the concave plate (32) is fixedly connected with one side of the cleaning pool (1), the moving frame (31) is C-shaped, one end of the moving frame (31) is slidably connected with one side inner wall of the concave plate (32), the two ends of the first threaded rod (33) are rotatably connected with the two side inner walls of the concave plate (32), one side of the first motor (34) is fixedly connected with one side of the concave plate (32), the output end penetrates one side of the concave plate (32) and is fixedly connected with one end of the first threaded rod (33), one end of the moving frame (31) is provided with a threaded hole, and the first threaded rod (33) is threadedly connected with the threaded hole.

5. The workpiece cleaning apparatus of claim 3, wherein: The side top of the cleaning pool (1) is fixedly provided with a support plate (6), the top of the support plate (6) is fixedly provided with a water pump, the input port of the water pump is fixedly provided with a suction pipe (53), one end of the suction pipe (53) is fixedly connected with the bottom of one side of the cleaning pool (1) and is communicated, the side of the cleaning pool (1) is fixedly provided with a filter screen (8) for filtering through bolts, the filter screen (8) covers the hole communicated between the suction pipe (53) and the cleaning pool (1), the output port of the water pump is fixedly provided with a second fixed pipe (52), one end of the second fixed pipe (52) is fixedly provided with a flexible hose (51), one end of the flexible hose (51) is fixedly provided with a first fixed pipe (5), one end of the first fixed pipe (5) is fixedly provided with a water spraying box (54) and is communicated, a plurality of water spraying holes are formed in the bottom of the water spraying box (54), the top of the water spraying box (54) is fixedly connected with the top inner wall of the L-shaped plate (42).

6. The workpiece cleaning apparatus of claim 4, wherein: The top inner wall of one end of the moving frame (31) is fixedly provided with an electric push rod for adjusting the height of the cleaning roller (43), the telescopic part of the electric push rod is fixedly connected with the top of the L-shaped plate (42).

7. The workpiece cleaning apparatus of claim 1, wherein: The top of the cleaning pool (1) is fixedly provided with a water retaining plate (2) for retaining water on both sides.

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