Cleaning machine and cleaning method

Abstract

A cleaning machine comprises an outer cylinder and an inner cylinder, the lower portion of the outer cylinder is connected with a water storage tank, a switching system is arranged in the water storage tank, one side of the water storage tank is connected with a circulating system, the circulating system comprises a water pump, a circulating pipe, a water spraying pipe and a connecting pipe, the water pump is connected to one side of the water storage tank, the circulating pipe is connected behind the water pump, the water spraying pipe is a hollow pipe and connected in the inner cylinder, and the tail end of the water spraying pipe is closed. A plurality of spraying holes are formed in the outer wall, the connecting pipe is rotationally connected to the bottom face of the outer cylinder, the two sides of the connecting pipe communicate with the water spraying pipe and the circulating pipe correspondingly, and the switching system is used for switching water in the water storage tank or a water and grinding pill mixture to enter the circulating system. According to the invention, different clothes can be cleaned in one inner cylinder by using a switching system, the mode of spraying and rubbing the clothes by grinding balls is adopted to replace an existing brush, the clothes are not damaged, the space of the inner cylinder is not occupied additionally, and a hot air system is used; compared with the prior art, the drying efficiency is improved by directly spraying hot air to the clothes in the inner barrel through the water spraying pipe.

Description

Technical Field

[0001] This invention relates to the field of washing machine technology, specifically to a cleaning machine and a cleaning method. Background Technology

[0002] Existing washing machines are equipped with different cleaning devices for clothes, shoes, hats, and backpacks, and use different styles of inner drums for cleaning. For example, the patent application number CN202530525016.3, entitled "Shoe Washing Machine Pulley," is a typical method of washing shoes by brushing.

[0003] However, using a brush to clean shoes is a rather rough method, and the hard bristles of the brush can damage the surface of the shoes; brushing shoes with a bristle brush also takes up extra space inside the shoe. Summary of the Invention

[0004] To address the technical problems existing in the background art, the present invention provides a cleaning machine and cleaning method that can be used to clean different types of items simultaneously without occupying additional inner drum space.

[0005] The technical solution of this invention is as follows: A cleaning machine includes an outer cylinder with its opening facing the side and an inner cylinder rotatably connected to it. The opening end of the outer cylinder is connected to a door. The inner cylinder is driven to rotate by a rotating system. Several water spray channels are provided on its outer wall. Water and shot inlets are provided on the outer cylinder. A water storage tank is connected to the lower part of the outer cylinder. A switching system is provided in the water storage tank. A circulation system is connected to one side of the water storage tank.

[0006] The circulation system includes a water pump, circulation pipes, spray pipes, and connecting pipes.

[0007] The water pump is connected to one side of the water storage tank, and then connected to the circulation pipe.

[0008] The water spray pipe is a hollow pipe connected to the inner cylinder, with its end sealed and several spray holes opened on the outer wall.

[0009] The connecting pipe is rotatably connected to the bottom surface of the outer cylinder, with one end connected to the circulation pipe and the other end connected to the water spray channel and water spray pipe.

[0010] The switching system is used to switch the water in the storage tank or the water-grind mixture into the circulation system.

[0011] The invention first improves the inner drum by setting several water spray channels on its outer wall and a water spray pipe in its center. Then, the water or a mixture of water and abrasive pellets is switched into the circulation system through a switching system in the water storage tank. On the one hand, different clothes can be washed in one inner drum by using the switching system. On the other hand, the abrasive pellets are sprayed onto the clothes to rub them instead of the existing brush, which does not damage the clothes and does not take up extra space in the inner drum.

[0012] In one embodiment, the top of the outer cylinder is provided with a water storage port and a feeding port, and the top of the outer cylinder and the lower part of the water storage tank are connected to the frame of the cleaning machine through shock-absorbing components.

[0013] The top surface of the water storage tank has an arc-shaped structure that adapts to the shape of the outer cylinder, and a water shut-off valve is installed at the connection between the outer cylinder and the water storage tank.

[0014] A drain valve is connected to the bottom of the water storage tank.

[0015] As one implementation method, the switching system can be electrically controlled, eliminating the need for manual pulling of the screen plate. Specifically, the switching system includes a movable screen plate and a bottom screen plate. Both ends of the movable screen plate are slidably connected to the inner wall of the water storage tank. The rear end of the movable screen plate can move vertically under the action of the drive unit, and the vertical movement path of the rear end of the movable screen plate covers the water pump inlet.

[0016] The bottom screen plate is located below the movable screen plate and is fixedly connected to the side wall of the water storage tank. The front end of the movable screen plate has a discharge port at the connection between the bottom screen plate and the water storage tank, and a discharge plate is closed on it. By pulling out the discharge plate, the grinding pellets can be discharged from the washing machine.

[0017] Furthermore, a pull-out screen plate is also installed above the movable screen plate, which is horizontally connected to the upper part of the water storage tank. It can be used to filter stones and other debris larger than grinding pellets. After a period of use, it can be pulled out for cleaning.

[0018] Furthermore, the drive unit includes a stroke screw and a screen plate closing motor. The stroke screw is vertically connected to the inner wall of the water storage tank and can rotate around its own axis. The stroke screw is movably connected to the rear end of the movable screen plate. The sieve plate closing motor is used to drive the stroke screw to rotate.

[0019] In one implementation, the circulation pipe of the circulation system is an L-shaped pipe, with the lower end connected to the water pump and the upper part connected to the connecting pipe through a sealing joint. The other end of the connecting pipe is fixedly connected to the inner cylinder.

[0020] In one embodiment, the rotating system includes a roller motor and a pulley. The roller motor is mounted on a mounting plate below the rear of the outer cylinder, and the pulley is mounted on a connecting pipe. A belt is provided between the output end of the roller motor and the pulley.

[0021] Furthermore, the present invention may also include a hot air system, which includes an integrated valve for both water and hot air inlets, installed on a circulation pipe for switching between water and hot air flow within the circulation pipe. By means of water spray channels on the outer wall of the inner drum and water spray pipes inside the inner drum, the hot air from the hot air system can be directly sprayed onto the clothes inside the inner drum, improving drying efficiency compared to existing technologies.

[0022] The present invention also provides a cleaning method using the above-mentioned cleaning machine, the specific steps of which are as follows: Step 1: Soak clothes. Place the clothes to be washed into the inner drum, close the water shut-off valve, add water, detergent and abrasive balls, and rotate the inner drum to mix and soak the items. Step 2, washing clothes: Open the water shut-off valve, adjust the switching system so that the water and abrasive mixture can both enter the circulation system, turn on the water pump of the circulation system, draw the water and abrasive mixture into the spray channel and spray pipe, and then spray it onto the clothes in the inner drum. Then it flows out from the spray channel of the inner drum to the water storage tank, realizing the circulation of abrasive and continuously washing the clothes. Step 3: Washing clothes. Adjust the switching system to allow only water to enter the circulation system, and wash the clothes by spraying water through circulation. Step 4: Dehydrating clothes. Turn off the water pump in the circulation system, open the drain valve at the bottom of the water tank, and rotate the inner drum at high speed to dehydrate the clothes. Step 5: Rinse clothes. Close the water shut-off valve, add water, and drive the inner drum to rotate to rinse the clothes. Step six: Repeat steps three through five, or steps four through five, until the clothes are clean.

[0023] After the clothes are cleaned, the water in the water tank can be drained, and the hot air system can be turned on to dry the clothes in the inner drum or the inside of the water tank.

[0024] Through the above design, the present invention provides a cleaning machine and cleaning method that improves the inner drum by setting several water spray channels on its outer wall and a water spray pipe in its center. Then, the water or a mixture of water and abrasive pellets is switched into the circulation system through a switching system in the water storage tank. On the one hand, different clothes can be cleaned in one inner drum by using the switching system. On the other hand, the abrasive pellets are sprayed onto the clothes to rub them instead of the existing brushes, which does not damage the clothes and does not occupy extra space in the inner drum.

[0025] In addition, the present invention also designs a hot air system. After the clothes are washed, the upward hot air can be sprayed directly onto the clothes in the inner drum through the water spray channel and water spray pipe, which improves the drying efficiency compared with the prior art. The downward hot air can dry the water storage tank and keep the inside of the water storage tank clean. Attached Figure Description

[0026] In the attached diagram: Figure 1 This is a 3D view of the rear of the cleaning machine; Figure 2 This is a rear view of the cleaning machine; Figure 3 This is a frontal 3D view of the cleaning machine; Figure 4 This is a cross-sectional view of the cleaning machine; Figure 5 An exploded view of the cleaning machine; Figure 6 This is a schematic diagram of the internal structure of the water storage tank; Figure 7 for Figure 6 A magnified view of the central X position; Figure 8 This is a schematic diagram of the outer cylinder structure; Figure 9 This is a schematic diagram of the inner cylinder structure; Figure 10 This is an exploded view of the water storage tank from the right side. Figure 11 This is an exploded view of the water storage tank from the left side. Figure 12 This is a schematic diagram of the hot air flow in the hot air system; Figure 13 Exploded view of the hot air system connection location; Figure 14 for Figure 13 A partial enlarged view of the installation location of the integrated valve for the hot air outlet in the middle waterway; Figure 15 This is a schematic diagram of the installation of the integrated valve for the hot air outlet in the water channel; Figure 16 Schematic diagram of the integrated valve for hot air outlet in water channel The components represented by the various reference numerals in the diagram are: 1. Outer cylinder; 11. Mounting plate; 12. Glass opening; 13. Damping rod; 14. Water shut-off valve; 15. Water storage port; 16. Feeding port; 2. Inner cylinder; 21. Water spray channel; 22. Spraying hole; 3. Water storage tank; 31. Front plate; 32. Rear plate; 33. Pull-out screen plate; 34. Discharge plate; 35. First chute; 36. Second chute; 37. Third chute; 38. Damping shock absorber; 39. Drain valve; 4. Circulation system; 41. Water pump; 42. Circulation pipe; 43. Water spray pipe; 44. Connecting pipe; 5. Rotation system; 51. Drum motor; 52. Pulley; 6. Switching system; 61. Movable screen plate; 62. Bottom screen plate; 63. Stroke screw; 64. Screen plate closing motor; 7. Hot air system; 71. Hot air blower; 72. Air outlet; 73. Wedge-shaped telescopic one-way valve. Detailed Implementation

[0027] Example 1 See Figures 1-5 This embodiment provides a cleaning machine, including an outer cylinder 1 with its opening facing the side and an inner cylinder 2 rotatably connected to it. The opening end of the outer cylinder 1 is connected to a door. The inner cylinder 2 is driven to rotate by a rotating system 5. Several water spray channels 21 are provided on its outer wall. Water and grinding shot inlets are provided on the outer cylinder 1. A water storage tank 3 is connected to the lower part of the outer cylinder 1. A switching system 6 is provided inside the water storage tank 3. A circulation system 4 is connected to one side of the water storage tank 3.

[0028] The circulation system 4 includes a water pump 41, a circulation pipe 42, a spray pipe 43, and a connecting pipe 44.

[0029] The water pump 41 is connected to one side of the water storage tank 3, and then connected to the circulation pipe 42.

[0030] The water spray pipe 43 is a hollow pipe connected inside the inner cylinder 2. Its end is closed, and several spray holes are opened on its outer wall.

[0031] The connecting pipe 44 is rotatably connected to the bottom surface of the outer cylinder 1, with one end connected to the circulation pipe 42 and the other end connected to the water spray channel 21 and the water spray pipe 43.

[0032] The switching system 6 is used to switch the water or water-grind mixture in the water storage tank 3 into the circulation system 4.

[0033] The present invention first improves the inner drum 2 by setting several water spray channels 21 on its outer wall and a water spray pipe 43 in its center. Then, the water or water and abrasive mixture is switched into the circulation system 4 through the switching system 6 in the water storage tank 3. On the one hand, different clothes can be washed in one inner drum 2 by using the switching system 6. On the other hand, the abrasive is sprayed onto the clothes to rub instead of the existing brush, which does not damage the clothes and does not occupy extra space in the inner drum 2.

[0034] The following is combined Figure 8 The specific structure of the circular outer cylinder 1 will be introduced below. In this embodiment, the front and rear ends of the top of the outer cylinder 1 are respectively provided with a water storage port 15 and a feeding port 16. The feeding port 16 is used to feed grinding pellets. The grinding pellets can be rice grain-sized, rough-surfaced spherical pellets made of rubber or plastic. Several damping rods 13 are provided around the top of the outer cylinder 1 for connecting to the frame of the cleaning machine.

[0035] A glass door 12 is hinged to the front of the outer cylinder 1, and an mounting plate 11 is provided at the rear of the outer cylinder 1. The lower part of the mounting plate 11 extends vertically to the lower part of the outer cylinder 1 for mounting the rotating system 5.

[0036] A water shut-off valve 14 is installed at the lower part of the outer cylinder 1.

[0037] The following is combined Figure 9 The specific structure of the circular inner cylinder 2 will be described below. In this embodiment, a plurality of water spray channels 21 are arrayed on the outer wall of the inner cylinder 2. The plurality of water spray channels 21 converge from the center of the bottom of the inner cylinder 2, and a plurality of spray holes 22 are provided at the junction of the water spray channels 21 and the inner cylinder 2. In this embodiment, there are six water spray channels 21, and six sets of spray holes are correspondingly opened on the outer wall of the inner cylinder 2. A connecting pipe 44 is fixedly connected to the rear end of the center of the inner cylinder 2, and the front end of the connecting pipe 44 is connected to the water spray channels 21 and the water spray pipe 43. Water and grinding shot from the connecting pipe enter the water spray channels 21 and the water spray pipe 43, and then are sprayed out from the spray holes 22. The spray holes 22 of the water spray channels 21 are the main working ports.

[0038] The connecting pipe 44 is rotatably connected to the outer cylinder 1.

[0039] The following is combined Figure 4 and Figure 5 Let's introduce the rotation system 5. In this embodiment, the rotation system 5 includes a roller motor 51 and a pulley 52. ​​The roller motor 51 is mounted on the mounting plate 11 at the lower rear of the outer cylinder 1. The pulley 52 is keyed to the connecting pipe 44. The output end of the roller motor 51 is provided with a small pulley, and a belt is provided between it and the pulley 52.

[0040] The following is combined Figure 10 Let's introduce the structure of the water storage tank. In this embodiment, the water storage tank 3 is a hollow structure enclosed on all four sides. Its top surface is an arc-shaped structure adapted to the shape of the outer cylinder 1. An avoidance hole is opened in the center of the top surface for connecting the water shut-off valve 14.

[0041] The lower part of the water storage tank 3 is connected to the frame of the cleaning machine through damping shock absorber 38.

[0042] The water storage tank 3 has a front panel 31 in front and a rear panel 32 in the back. The bottom center of the rear panel 32 is connected to a drain valve 39, and the lower center of the rear panel 32 is connected to a circulation system 4.

[0043] In this embodiment, the circulation pipe 42 of the circulation system 4 is an L-shaped pipe, with its lower end connected to the water pump 41, which is located above the drain valve 39. The upper part of the circulation pipe 42 is connected to the connecting pipe 44 via a sealing joint, and the other end of the connecting pipe 44 is fixedly connected to the inner cylinder 2. (See Figure 1) Figure 4 As shown.

[0044] By using the circulation system 4, the grinding pellets and water in the water storage tank 3 can be pumped together by the water pump 41 along the circulation pipe 42, the connecting pipe 44, and the spray pipe 43. Then, they are sprayed at high pressure from the spray holes 22 on the outer wall of the spray channel 21 and the spray pipe 43 onto the shoes, hats, or other clothing in the inner cylinder 2. Then, under the action of gravity, they flow out from the inner cylinder 2 into the outer cylinder 1, and then enter the water storage tank 3 through the water shut-off valve 14 to continue to participate in the circulation.

[0045] The following is combined Figures 4-7 ,as well as Figure 10 , Figure 11 Let's introduce switching to system 6.

[0046] As one implementation method, the switching system 6 can be electrically controlled. Specifically, the switching system 6 includes a movable screen plate 61 and a bottom screen plate 62. Both ends of the movable screen plate 61 are slidably connected to the inner wall of the water storage tank 3. The rear end of the movable screen plate 61 can move vertically under the action of the drive unit, and the vertical movement path of the rear end of the movable screen plate 61 covers the water inlet of the water pump 41.

[0047] Specifically, the width of the movable sieve plate 61 is matched with the width of the water storage tank 3, and circular sliding columns are provided on the outer sides of both the front and rear ends. A second sliding groove 36 is provided horizontally on the lower front part of both sides of the water storage tank 3, and a third sliding groove 37 is provided vertically on the lower part of both sides of the rear plate 32 of the water storage tank 3. The front and rear ends of the movable sieve plate 61 are respectively inserted into the second sliding groove 36 and the third sliding groove 37.

[0048] Furthermore, the top of the third chute 37 is higher than the inlet of the water pump 41, so that the movable screen plate 61 can block the grinding shot from entering the water pump 41.

[0049] In this embodiment, the bottom screen plate 62 is located below the movable screen plate 61 and is fixedly connected to the side wall of the water storage tank 3. Its main function is that when the rear end of the movable screen plate 61 moves upward, causing the movable screen plate 61 to be in an inclined state, its front end will move backward, thereby creating a gap between the front end of the movable screen plate 61 and the front plate 31. To prevent the grinding shot from flowing out of this gap, the bottom screen plate 62 is fixed below the second chute 36, and its length is preferably sufficient to prevent the grinding shot from flowing out. Preferably, the length of the bottom screen plate 62 can be the same as the width of the water storage tank 3, which, in addition to preventing the grinding shot from flowing out, can also improve the strength of the water storage tank 3.

[0050] Furthermore, a discharge port is opened at the front end of the movable screen plate 61 at the connection between the bottom screen plate 62 and the water storage tank 3, and a discharge plate 34 is closed thereon. By pulling open the discharge plate 34, the grinding pellets can be discharged from the washing machine.

[0051] In this embodiment, the screen hole size on the movable screen plate 61 and the bottom screen plate 62 is designed to block grinding pellets and filter out smaller particles of mud and sand.

[0052] As a further preferred option, a pull-out screen plate 33 is also provided above the movable screen plate, which is horizontally connected to the upper part of the water storage tank 3. It can be used to filter stones and other debris larger than grinding pellets. After a period of use, it can be pulled out for cleaning.

[0053] Furthermore, the upper sides of the water storage tank 3 are provided with first horizontally arranged sliding grooves 35 for sliding connection with the pull-out screen plate 33.

[0054] Furthermore, a wide handle is provided at the front end of the pull-out screen plate 33, which is used to manually pull the pull-out screen plate 33 and to close the opening of the front plate 31.

[0055] In this embodiment, the drive unit includes a stroke screw 63 and a screen plate closing motor 64. The stroke screw 63 is vertically connected to the rear plate 32 of the water storage tank 3, and avoids the drain valve 39 and water pump 41 located at the center of the rear plate 32. Specifically, a retaining plate is vertically arranged on the rear plate 32, and a circular hole is opened in the center of the retaining plate to limit the stroke screw 63 to rotate around its own axis. Preferably, the bottom of the stroke screw 63 is located on the bottom screen plate 62 to obtain good support.

[0056] The screen plate closing motor 64 is installed at the rear of the rear plate 32. The output end is connected to a bevel gear, and the top of the stroke screw 63 is connected to a bevel gear. The two bevel gears mesh with each other and drive the stroke screw 63 to rotate through the screen plate closing motor 64.

[0057] The stroke screw 63 is movably connected to the rear end of the movable screen plate 61. In one embodiment, a spherical universal nut is provided on the movable screen plate 61, and a transverse shaft pin is provided on the spherical universal nut to connect with the movable screen plate 61. The stroke screw 63 passes through the spherical universal nut. When the stroke screw 63 rotates, it can drive the spherical universal nut to move up and down, thereby driving the movable screen plate 61 to change its angle.

[0058] Example 2 See Figures 12-16 The present invention may also include a hot air system 7, which includes an integrated valve for hot air inlet and water channel, installed on the circulation pipe 42, for switching water or hot air to flow in the circulation pipe 42.

[0059] Specifically, the integrated hot air outlet valve includes a hot air blower 71 and a wedge-shaped telescopic one-way valve 73. The hot air blower 71 is installed on the circulation pipe 42, and an arc-shaped platform is provided at one end facing the circulation pipe 42. The outer surface of the arc-shaped platform matches the outer wall of the circulation pipe 42. Several air outlets are provided on the arc-shaped platform, and the wedge-shaped telescopic one-way valve 73 is located at the center of the arc-shaped platform. The wedge-shaped telescopic one-way valve 73 extends into the circulation pipe 42. Under normal conditions, it blocks the opening on the side wall of the circulation pipe 42 to prevent water in the circulation pipe 42 from entering the hot air blower 71. When it is necessary to dry clothes, the wedge-shaped telescopic one-way valve 73 is moved a short distance into the circulation pipe 42 to facilitate the entry of hot air into the circulation pipe 42 from the air outlet 72.

[0060] With the help of the water spray channel 21 on the outer wall of the inner drum 2 and the water spray pipe 22 inside the inner drum 2, the hot air discharged by the hot air blower 71 can be directly sprayed onto the clothes inside the inner drum 2, which improves drying efficiency compared with existing technology. After the clothes are dried and removed, the hot air discharged by the hot air blower 71 can dry the water storage tank 3 and keep the inside of the water storage tank 3 clean.

[0061] The rest of the content in this embodiment is the same as in embodiment 1, and will not be repeated here.

[0062] Example 3 The present invention also provides a cleaning method using the cleaning machine in Example 2, the specific steps of which are as follows: Step 1: Soak the clothes. Place the clothes to be washed into the inner drum 2, close the water shut-off valve 14, add water, detergent and abrasive balls, and rotate the inner drum 2 to mix and soak the items.

[0063] Step 2: Washing clothes. Open the water shut-off valve 14, adjust the switching system 6 so that the water and abrasive mixture can enter the circulation system 4, turn on the water pump 41 of the hot air blower 71 of the circulation system 4, draw the water and abrasive mixture into the spray channel 21 and spray pipe 43, and then spray it onto the clothes in the inner drum 2. Then it flows out from the spray channel 21 of the inner drum 2 to the water storage tank 3, realizing the circulation of abrasive and continuously washing the clothes.

[0064] Step 3: Washing clothes. Adjust the switching system 6 to allow only water to enter the circulation system 4, and wash the clothes by spraying water through circulation.

[0065] Step 4: Dehydrating clothes. Turn off the water pump 41 of the circulation system 4, open the drain valve 39 at the bottom of the water tank 3, and rotate the inner drum 2 at high speed to dehydrate the clothes.

[0066] Step 5: Rinse clothes. Close the water shut-off valve 14, add water, and drive the inner drum 2 to rotate to rinse clothes.

[0067] Step six: Repeat steps three through five, or steps four through five, until the clothes are clean.

[0068] Step 7: After the clothes are clean, the water in the water tank 3 can be drained, and the hot air system 7 can be started to dry the clothes in the inner drum 2 or the inside of the water tank 3.

Claims

1. A cleaning machine, comprising an outer cylinder (1) with its opening facing a side and an inner cylinder (2) rotatably connected thereto, wherein the open end of the outer cylinder (1) is connected to a door, and the inner cylinder (2) is driven to rotate by a rotating system (5), characterized in that, The outer wall of the inner cylinder (2) is provided with several water spray channels (21), the outer cylinder (1) is provided with water and grinding shot inlets, the lower part of the outer cylinder (1) is connected to a water storage tank (3), the water storage tank (3) is provided with a switching system (6), and a circulation system (4) is connected to one side of the water storage tank (3). The circulation system (4) includes a water pump (41), a circulation pipe (42), a spray pipe (43), and a connecting pipe (44). The water pump (41) is connected to one side of the water storage tank (3), and then connected to the circulation pipe (42). The water spray pipe (43) is a hollow pipe connected inside the inner cylinder (2), with its end closed and several spray holes (22) opened on its outer wall. The connecting pipe (44) is rotatably connected to the bottom surface of the outer cylinder (1), with one end connected to the circulation pipe (42) and the other end connected to the water spray channel (21) and the water spray pipe (43); The switching system (6) is used to switch the water or water-grind mixture in the water storage tank (3) into the circulation system (4).

2. The cleaning machine according to claim 1, characterized in that, The top of the outer cylinder (1) is provided with a water storage port (15) and a feeding port (16). The top of the outer cylinder (1) and the lower part of the water storage tank (3) are connected to the frame of the cleaning machine through shock absorbers.

3. A cleaning machine according to claim 2, characterized in that, The top surface of the water storage tank (3) is an arc-shaped structure adapted to the shape of the outer cylinder (1), and a water shut-off valve (14) is provided at the connection between the outer cylinder (1) and the water storage tank (3). The bottom of the water storage tank (3) is connected to a drain valve (39).

4. A cleaning machine according to claim 1, characterized in that, The switching system (6) includes a movable sieve plate (61) and a bottom sieve plate (62). The front and rear ends of the movable sieve plate (61) are slidably connected to the inner wall of the water storage tank (3). The rear end of the movable sieve plate (61) can move vertically under the action of the drive unit, and the vertical movement path of the rear end of the movable sieve plate (61) covers the water inlet of the water pump (41). The bottom screen plate (62) is located below the movable screen plate (61) and is fixedly connected to the side wall of the water storage tank (3). The front end of the movable screen plate (61) has a discharge port at the connection between the bottom screen plate (62) and the water storage tank (3) and is sealed with a discharge plate (34).

5. A cleaning machine according to claim 4, characterized in that, Above the movable sieve plate (61) is a pull-out sieve plate (33), which is horizontally connected to the upper part of the water storage tank (3).

6. A cleaning machine according to claim 5, characterized in that, The drive unit includes a stroke screw (63) and a sieve plate closing motor (64). The stroke screw (63) is vertically connected to the inner wall of the water storage tank (3) and can rotate around its own axis. The stroke screw (63) is movably connected to the rear end of the movable sieve plate (61). The sieve plate closing motor (64) is used to drive the stroke screw (63) to rotate.

7. A cleaning machine according to claim 1, characterized in that, The circulation pipe (42) of the circulation system (4) is an L-shaped pipe. The lower end is connected to the water pump (41), and the upper part is connected to the connecting pipe (44) through a sealing joint. The other end of the connecting pipe (44) is fixedly connected to the inner cylinder (2).

8. A cleaning machine according to claim 1, characterized in that, The rotating system (5) includes a roller motor (51) and a pulley (52). The roller motor (51) is mounted on the mounting plate (11) below the rear of the outer cylinder (1), and the pulley (52) is mounted on the connecting pipe (44). A belt is provided between the output end of the roller motor (51) and the pulley (52).

9. A cleaning machine according to claim 7, characterized in that, It also includes a hot air system (7), which includes an integrated valve for hot air inlet and outlet of water channel, installed on the circulation pipe (42) for switching water or hot air to flow in the circulation pipe (42).

10. A cleaning method, characterized in that, Using the cleaning machine according to any one of claims 1-9, the specific steps are as follows: Step 1: Soak clothes. Put the clothes to be washed into the inner drum (2), close the water shut-off valve (14), add water, detergent and abrasive balls, and rotate the inner drum (2) to mix and soak the items. Step 2, washing clothes: open the water shut-off valve (14), adjust the switching system (6) so that the water and abrasive mixture can enter the circulation system (4), turn on the water pump (41) of the circulation system (4), pump the water and abrasive mixture into the spray channel (21) and spray pipe (43), and then spray it onto the clothes in the inner drum (2), and then flow out from the inner drum (2) to the water storage tank (3), so as to realize the circulation of abrasive and continuously wash the clothes; Step 3, washing clothes: Adjust the switching system (6) to allow only water to enter the circulation system (4), and wash the clothes by spraying water through the circulation. Step 4: Dehydrating clothes. Turn off the water pump (41) of the circulation system (4), open the drain valve (39) at the bottom of the water tank (3), and rotate the inner drum (2) at high speed to dehydrate the clothes. Step 5: Rinse clothes. Close the water shut-off valve (14), add water, and drive the inner drum (2) to rotate for rinsing clothes. Step six: Repeat steps three through five, or steps four through five, until the clothes are clean.

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