Cleaning device for screen printing plate

Abstract

The invention relates to the technical field of cleaning equipment, in particular to a cleaning device for a screen printing plate, and aims to solve the problem that the cleaning effect of the screen printing plate is poor due to the fact that slurry needs to be manually scraped when the existing screen printing plate is cleaned. The cleaning device comprises a box body and a collecting assembly, a cleaning cavity, a collecting cavity and a liquid collecting cavity are sequentially formed in the box body from top to bottom, the cleaning cavity is used for cleaning the screen printing plate, the cleaning cavity can communicate with the collecting cavity so that cleaning liquid in the cleaning cavity can flow into the collecting cavity, and the collecting assembly is located in the collecting cavity and can be moved out of the box body. The collecting assembly is arranged to allow the cleaning liquid to enter the liquid collecting cavity and prevent solid particles in the cleaning liquid from entering the liquid collecting cavity. Solid particles in cleaning liquid can be recycled, collected slurry can be conveniently taken out and processed into silver slurry to be reused, slurry waste is avoided, manual wiping is not needed before the screen printing plate is cleaned, damage to the screen printing plate can be avoided, and the service life of the screen printing plate is prevented from being affected.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, and in particular provides a cleaning device for a screen. Background Art

[0002] TOPCon cells have attracted attention in the photovoltaic industry as a type of cell that is closest to the theoretical efficiency value of crystalline silicon cells.

[0003] In the production process of TOPCon batteries, electrodes need to be screen printed. The screen printing process is divided into 1, 2, 3, and 4 steps, which are printing the back main grid, back fine grid, front main grid, and front fine grid. Each step has a corresponding screen printing plate. Whenever a screen is about to be offline or the screen needs to be replaced due to experiments, the remaining slurry on the screen needs to be collected and the screen needs to be cleaned.

[0004] In the prior art, when cleaning the screen, it is usually done by manually wiping and using a scraper to scrape off the remaining slurry on the screen. This cleaning method is time-consuming and cannot clean the screen completely. The slurry will be wasted during the cleaning process. At the same time, the screen will be damaged to a certain extent, affecting the service life of the screen and resulting in poor cleaning effect of the screen. Summary of the invention

[0005] The present invention aims to solve the above technical problem at least to a certain extent, that is, to solve at least to a certain extent the problem that the existing screen has poor cleaning effect due to the need to manually scrape off the slurry during cleaning.

[0006] In a first aspect, the present invention provides a cleaning device for a screen, the cleaning device comprising a housing and a collecting assembly, wherein the housing is provided with a cleaning chamber, a collecting chamber and a liquid collecting chamber in sequence from top to bottom, the cleaning chamber being used to clean the screen, the cleaning chamber being able to communicate with the collecting chamber so that the cleaning liquid in the cleaning chamber flows into the collecting chamber, wherein the collecting assembly is located in the collecting chamber and can be removed from the housing, and the collecting assembly is configured to allow the cleaning liquid to enter the liquid collecting chamber and prevent solid particles in the cleaning liquid from entering the liquid collecting chamber.

[0007] In the preferred technical solution of the above-mentioned cleaning device for the screen, a plurality of cleaning tanks adapted to the screen are arranged in the cleaning chamber, each of the cleaning tanks can be connected to the collecting chamber, and the cleaning device also includes an ultrasonic cleaning module, which is used to vibrate the cleaning liquid in the cleaning tank so as to clean the slurry on the screen.

[0008] In the preferred technical solution of the above-mentioned screen cleaning device, the collecting assembly includes a box body and a filter component, the filter component can allow the cleaning liquid to enter the liquid collecting chamber and prevent solid particles in the cleaning liquid from entering the liquid collecting chamber, and the box body is slidably connected to the box body so that the filter component can be moved out of the collecting chamber.

[0009] In the preferred technical solution of the above-mentioned cleaning device for screens, the box body has a filter groove, the filter member is located in the filter groove and connected to the inner wall of the box body, the collecting assembly also includes a flow guide member, the flow guide member is arranged adjacent to the filter groove and the first end of the flow guide member is connected to the cleaning chamber, the second end of the flow guide member is connected to the filter groove, and the flow guide member is arranged to enable part of the cleaning liquid in the cleaning groove to flow into the filter groove.

[0010] In the preferred technical solution of the above-mentioned screen cleaning device, the guide member is a guide plate, the guide plate has an inclined surface and the first end of the guide plate is higher than the second end of the guide plate, the first end of the guide plate is connected to the inner wall of the box body, the second end of the guide plate abuts the box body, and the projection of the guide plate in the vertical direction is higher than the projection of the filter member in the vertical direction; and / or the box body includes a first plate body, a second plate body and a third plate body connected in sequence, the first plate body, the second plate body and the third plate body together form the filter tank, the filter member is located in the filter tank and the filter member is detachably connected to the box body.

[0011] In the preferred technical solution of the above-mentioned screen cleaning device, a curved surface structure is provided on the filter member, wherein the curved surface structure extends in a direction away from the cleaning chamber; and / or the filter tank has an opening, and the filter member is slidably connected to the box body so that the filter member moves to the outside of the filter tank through the opening; and / or the number of the filter members is multiple and the multiple filter members are spaced apart in the vertical direction in the filter tank.

[0012] In the preferred technical solution of the above-mentioned cleaning device for screens, the cleaning device further includes a plurality of partitions, the cleaning tank is formed between two adjacent partitions, the ultrasonic cleaning module includes a plurality of ultrasonic transducers, a receiving tank is provided in the partition, and the ultrasonic transducer is located in the receiving tank.

[0013] In the preferred technical solution of the above-mentioned cleaning device for screens, the ultrasonic cleaning module further includes a control switch, which is communicatively connected to the ultrasonic transducer, wherein the control switches are multiple and are arranged in a one-to-one correspondence with the ultrasonic transducers.

[0014] In the preferred technical solution of the above-mentioned cleaning device for screens, the cleaning device further comprises a sealing drainage component, which is configured to prevent the cleaning liquid in the cleaning tank from flowing into the collecting chamber when it is in a first working state, and the sealing drainage component is further configured to allow the cleaning liquid in the cleaning tank to flow into the collecting chamber when it is in a second working state.

[0015] In the preferred technical solution of the above-mentioned screen cleaning device, the bottom of the cleaning tank is provided with a drain outlet, and the sealing drain component includes a valve plate and an elastic member, one end of the elastic member is connected to the valve plate, and the other end of the elastic member is connected to the inner wall of the cleaning tank, and the valve plate can overcome the elastic force of the elastic member and move toward the drain outlet to block the drain outlet, and the valve plate can also move in a direction away from the drain outlet under the action of the restoring force of the elastic member to open the drain outlet.

[0016] When the above-mentioned preferred technical solution is adopted, when cleaning the screen, the screen with slurry is placed in the cleaning chamber for cleaning, and the slurry on the screen enters the cleaning liquid. On the one hand, after the screen is cleaned, the cleaning liquid in the cleaning chamber enters the collecting chamber, and the collecting component can collect the solid particles in the cleaning liquid. At the same time, the collecting component can be removed from the box, which can facilitate the collection of solid silver particles. Take out and process them into silver paste for reuse, avoid slurry waste, and help save costs; on the other hand, since there is no need to manually wipe the screen before cleaning the screen, it can avoid damage to the screen, thereby avoiding affecting the service life of the screen due to the cleaning of the screen. At the same time, it saves manpower and material resources and improves the cleaning efficiency of the screen.

[0017] Furthermore, by arranging multiple cleaning tanks compatible with the screens in the cleaning chamber, each screen can be placed in the corresponding cleaning tank for cleaning, and the cleaning liquid in the cleaning tank is vibrated by the ultrasonic transducer, so that the slurry attached to the screen can be more thoroughly cleaned, thereby improving the cleaning efficiency and cleaning effect of the screen.

[0018] Furthermore, by configuring the collecting assembly to include a box body and a filter member and the box body is slidably connected to the housing, the box body can be more conveniently pulled out of the housing to facilitate the removal of the solid silver particles on the filter member, thereby further improving the recovery efficiency of the solid silver particles.

[0019] Furthermore, by providing a guide component, part of the cleaning liquid in the cleaning tank can be guided into the filter tank through the guide component, and the solid silver particles in the cleaning liquid can be collected by the filter component in the filter tank, so that the collection of solid silver particles is more concentrated, and it is easier to remove the solid silver particles from the cleaning device.

[0020] Furthermore, the guide component is arranged in the form of a guide plate, so that the cleaning liquid with a higher solid silver particle content at the bottom of the cleaning tank can flow through the guide plate, and then the cleaning liquid with a lower solid silver content located above the cleaning chamber can flow through the guide plate, thereby flushing the solid silver particles remaining on the guide plate and flowing to the filter component, thereby being able to more thoroughly collect the solid silver particles in the cleaning liquid.

[0021] Furthermore, by arranging the filter component to be detachably connected to the box body, on the one hand, it is possible to facilitate the removal of the filter component from the box body, thereby facilitating the placement of the filter component and the solid silver particles collected on the filter component into an oven for drying, thereby further improving the collection efficiency of the solid silver particles; on the other hand, when enough solid silver particles are collected on the filter component, the filter component can be removed and replaced with a new filter component to continue collecting the solid silver particles in the cleaning liquid, thereby avoiding the cleaning device from being unable to continue working due to the removal of the solid silver particles, thereby greatly improving the cleaning efficiency of the cleaning device.

[0022] Furthermore, by providing a curved surface structure on the filter element, on the one hand, the capacity of the filter element for collecting solid silver particles can be increased, so that more solid silver particles can be collected on the filter element. On the other hand, when the filter element is taken out of the box and placed in an oven for drying, the solid silver particles on the filter element can be prevented from spilling, thereby making the collection of solid silver particles more convenient.

[0023] Furthermore, the ultrasonic transducer is arranged in the receiving groove in the partition. When the screen in the cleaning groove is cleaned, the ultrasonic transducers located on both sides of the cleaning groove can work simultaneously to vibrate the cleaning liquid in the cleaning groove, so that the slurry on the screen can be cleaned more thoroughly and quickly, thereby improving the cleaning efficiency.

[0024] Furthermore, by setting up multiple control switches, each control switch can be set corresponding to the ultrasonic transducer corresponding to the cleaning tank, so that only the ultrasonic transducer with a cleaning screen in the cleaning tank can be started, thereby avoiding the energy waste caused by starting all ultrasonic transducers, thereby saving energy.

[0025] Furthermore, by providing a sealing drainage component, it is possible to prevent the cleaning liquid in the cleaning tank from flowing into the collection chamber when cleaning the screen. After the screen cleaning is completed, the cleaning liquid in the cleaning tank flows into the collection chamber, thereby facilitating the collection of solid silver particles. This greatly facilitates the convenient switching of the cleaning device between the screen cleaning stage and the solid silver particle collection stage, further improving the cleaning efficiency of the screen.

[0026] Furthermore, by configuring the sealing drainage component to include a valve plate and an elastic member, the drainage port can be automatically blocked and opened, thereby more conveniently switching between the screen cleaning stage and the solid silver recovery stage, further improving the screen cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0028] Figure 1 1 is a schematic structural diagram of a cleaning device for a screen according to a first embodiment of the present invention;

[0029] Figure 2 The structure of the cleaning device for screen according to the second embodiment of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 3 The structure of the cleaning device for screen according to the second embodiment of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 4 yes Figure 3 A schematic cross-sectional view of a cleaning device according to one embodiment of the present invention along line AA;

[0032] Figure 5 yes Figure 3 A schematic cross-sectional view of a cleaning device according to another embodiment of the present invention along line AA;

[0033] Figure 6 is a schematic diagram of the structure of a collection component in one embodiment of the present invention;

[0034] Figure 7 is a schematic structural diagram of a collection component according to another embodiment of the present invention;

[0035] Figure 8 1 is a schematic diagram of the structure of the cleaning tank, screen and sealing drainage component of the present invention, wherein the position relationship diagram of each component when the sealing drainage component is in the first working state is shown;

[0036] Fig. 9 The structure of the cleaning tank and the sealing drainage component of the present invention is schematically shown. Figure 1 , which shows the position relationship diagram of various components when the sealing and draining component is in the second working state;

[0037] Fig.10 The structure of the cleaning tank and the sealing drainage component of the present invention is schematically shown. Figure 2 , which shows a top view of the structure of each component.

[0038] List of reference numerals:

[0039] 1. Box body; 11. Cleaning chamber; 111. Cleaning tank; 112. Partition; 1121. Receiving tank; 12. Collecting chamber; 13. Liquid collecting chamber; 2. Collecting assembly; 211. First plate; 212. Second plate; 213. Third plate; 214. Filter tank; 215. Opening; 22. Filter component; 221. Curved surface structure; 23. Gripping structure; 24. Guide component; 3. Sealing drainage component; 31. Valve plate; 311. Sealing part; 312. Hollow part; 32. Elastic component; 33. Bottom wall; 331. Drainage port; 41. Ultrasonic transducer; 42. Control switch; 51. Water outlet pipe; 52. Water outlet valve; 6. Water level detection component; 7. Screen. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0041] It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] It should be noted that, in actual applications, the present invention does not impose any particular limitation on the type of slurry applicable to the screen. For example, the slurry applicable to the screen can be set to a slurry containing solid silver. When the cleaning device of the present invention is used to clean the screen, the solid silver particles in the slurry can be collected. Alternatively, the slurry applicable to the screen can be set to a slurry containing other solid particles. When the cleaning device of the present invention is used to clean the screen, other solid particles in the slurry can be collected, and so on. Such adjustments and changes to the type of slurry compatible with the screen do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0044] The specific embodiment of the cleaning device of the present invention is described in detail below by taking a slurry containing solid silver as an example.

[0045] Specifically, see Figures 1 to 5 , Figure 1 1 is a schematic structural diagram of a cleaning device for a screen according to a first embodiment of the present invention; Figure 2 The structure of the cleaning device for screen according to the second embodiment of the present invention is shown in FIG. Figure 1 ; Figure 3 The structure of the cleaning device for screen according to the second embodiment of the present invention is shown in FIG. Figure 2 ; Figure 4 yes Figure 3 A schematic cross-sectional view of a cleaning device according to one embodiment of the present invention along line AA; Figure 5 yes Figure 3 A schematic cross-sectional structural diagram of a cleaning device according to another embodiment of the present invention along line AA.

[0046] like Figures 1 to 5 As shown, the cleaning device of the present invention includes a housing 1 and a collecting assembly 2. A cleaning chamber 11, a collecting chamber 12 and a liquid collecting chamber 13 are sequentially arranged in the housing 1 from top to bottom. The cleaning chamber 11 is used to clean the screen 7. The cleaning chamber 11 can be connected to the collecting chamber 12 so that the cleaning liquid in the cleaning chamber 11 flows into the collecting chamber 12.

[0047] like Figures 1 to 5 As shown, the collecting assembly 2 is located in the collecting chamber 12 and can be removed from the housing 1 . The collecting assembly 2 is configured to allow the cleaning liquid to enter the collecting chamber 13 and prevent solid particles in the cleaning liquid from entering the collecting chamber 13 .

[0048] With such an arrangement, when cleaning the screen 7, the screen 7 with the slurry is placed in the cleaning chamber 11 for cleaning, and the slurry on the screen 7 enters the cleaning liquid. On the one hand, after the cleaning of the screen 7 is completed, the cleaning liquid in the cleaning chamber 11 enters the collecting chamber 12, and the collecting component 2 can collect the solid particles in the cleaning liquid. At the same time, the collecting component 2 can be removed from the housing 1, so that the collected solid silver particles can be easily taken out and processed into silver slurry for reuse, thereby avoiding waste of slurry and helping to save costs. On the other hand, since there is no need to manually wipe the screen 7 before cleaning it, damage to the screen 7 can be avoided, thereby avoiding affecting the service life of the screen 7 due to the cleaning of the screen 7. At the same time, manpower and material resources are saved, and the cleaning efficiency of the screen 7 is improved.

[0049] It should be noted that, in actual applications, those skilled in the art may set only one cleaning tank 111 in the cleaning chamber 11, and when cleaning multiple screens 7, place the multiple screens 7 in the cleaning tank 111 for cleaning at the same time, or, may set multiple cleaning tanks 111 compatible with the screens 7 in the cleaning chamber 11, and when cleaning multiple screens 7, place the multiple screens 7 in different cleaning tanks 111 for cleaning, etc. Such adjustments and changes to the specific setting quantity of the cleaning tanks 111 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0050] Preferably, if Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a plurality of cleaning tanks 111 adapted to the screen 7 are arranged in the cleaning chamber 11, and each cleaning tank 111 can be connected to the collecting chamber 12. The cleaning device also includes an ultrasonic cleaning module, which is used to vibrate the cleaning liquid in the cleaning tank 111 so as to clean the slurry on the screen 7.

[0051] With such an arrangement, each screen 7 can be placed in a corresponding cleaning tank 111 for cleaning, and the cleaning liquid in the cleaning tank 111 can be vibrated by the ultrasonic cleaning module, so that the slurry attached to the screen 7 can be cleaned more thoroughly, thereby improving the cleaning efficiency and cleaning effect of the screen 7.

[0052] It should be noted that, in actual applications, those skilled in the art may set a plurality of partitions 112 in the cleaning chamber 11 to form a cleaning tank 111 between two adjacent partitions 112, or may open a plurality of grooves adapted to the screen 7 in the box body 1 as the cleaning tank 111, and so on. Such adjustments and changes to the specific setting form of the cleaning tank 111 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0053] Continue reading Figure 4 and Figure 5 , then see Figure 8 and Fig. 9 , Figure 8 1 is a schematic diagram of the structure of the cleaning tank, screen and sealing drainage component of the present invention, wherein the position relationship diagram of each component when the sealing drainage component is in the first working state is shown. Fig. 9 The structure of the cleaning tank and the sealing drainage component of the present invention is schematically shown. Figure 1 , which shows the position relationship diagram of various components when the sealing and drainage component is in the second working state.

[0054] Preferably, if Figure 4 , Figure 5 , Figure 8 and Fig. 9 As shown, the cleaning device further includes a plurality of partitions 112 , a cleaning tank 111 is formed between two adjacent partitions 112 , a receiving tank 1121 is provided in the partition 112 , and the ultrasonic cleaning module includes a plurality of ultrasonic transducers 41 , and the ultrasonic transducers 41 are located in the receiving tank 1121 .

[0055] With such an arrangement, the ultrasonic transducer 41 is arranged in the receiving groove 1121 in the partition 112. When the screen 7 in the cleaning groove 111 is cleaned, the ultrasonic transducers 41 located on both sides of the cleaning groove 111 can work simultaneously to vibrate the cleaning liquid in the cleaning groove 111, thereby being able to clean the slurry on the screen 7 more thoroughly and quickly, thereby improving the cleaning efficiency.

[0056] It should be noted that, in practical applications, the ultrasonic cleaning module is not limited to being configured to include multiple ultrasonic transducers 41. For example, the ultrasonic cleaning module can also be configured to include only one ultrasonic transducer 41, and so on. Such adjustment and change of the specific number of ultrasonic transducers 41 does not deviate from the principle and scope of the present invention and should be included in the protection scope of the present invention. Of course, preferably, the ultrasonic cleaning module is configured to include multiple ultrasonic transducers 41.

[0057] It should also be noted that the ultrasonic transducer 41 is not limited to being disposed in the receiving tank 1121. For example, the ultrasonic transducer 41 may also be disposed on the inner wall of the cleaning tank 111, or the ultrasonic transducer 41 may also be disposed at any other possible position, etc. Such adjustment and change of the specific location of the ultrasonic transducer 41 does not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention. Of course, preferably, the ultrasonic transducer 41 is disposed in the receiving tank 1121.

[0058] Preferably, if Figures 1 to 3 As shown, the ultrasonic cleaning module further includes a plurality of control switches 42 , and the control switches 42 are arranged in a one-to-one correspondence with the ultrasonic transducers 41 and the control switches 42 are communicatively connected with the ultrasonic transducers 41 .

[0059] Through such a setting, each control switch 42 can be set corresponding to the ultrasonic transducer 41, so that the ultrasonic transducers 41 at different positions can be controlled individually. When part of the cleaning tank 111 is in working state, only the ultrasonic transducer 41 at the position corresponding to the cleaning tank 111 is controlled to work, thereby avoiding energy waste.

[0060] It should be noted that the ultrasonic cleaning module is not limited to being configured to include multiple control switches 42. For example, the ultrasonic cleaning module can also be configured to include only one control switch 42, and the control switch 42 is communicated with multiple ultrasonic transducers 41. In other words, all ultrasonic transducers 41 are enabled to work simultaneously through the control switch 42, and so on. Such adjustments and changes to the specific setting quantity of the control switch 42 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0061] Of course, preferably, there are multiple control switches 42 and the multiple control switches 42 are arranged in a one-to-one correspondence with the multiple ultrasonic transducers 41 .

[0062] It should be noted that, in actual applications, those skilled in the art may set the control switch 42 on the housing 1 and set it corresponding to the cleaning tank 111, and the staff may directly control the control switch 42 corresponding to the cleaning tank 111 to start the ultrasonic transducer 41 corresponding to the cleaning tank 111, or the cleaning device may be configured to include a display screen, and the control switch 42 is set on the display screen on the housing 1, and the control switch 42 corresponding to the cleaning tank 111 on the display screen is controlled to start the ultrasonic transducer 41 corresponding to the cleaning tank 111, or the control switch 42 may be set in any other possible position, and so on. Such adjustment and change of the specific setting position of the control switch 42 on the housing 1 does not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0063] Preferably, if Figures 1 to 3 As shown, the control switch 42 is arranged on the box body 1 and at a position corresponding to the cleaning tank 111 .

[0064] It should be noted that, in actual applications, those skilled in the art may set the control switch 42 to a control knob, or may set the control switch 42 to a control button, or may set the control switch 42 to any other possible form, etc. Such adjustments and changes to the specific setting form of the control switch 42 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0065] Preferably, the control switch 42 is a control knob.

[0066] It should be noted that, in actual applications, those skilled in the art may configure the collecting component 2 to be slidably connected to the box body 1 so that the collecting component 2 can be moved out of the box body 1, or, may configure the collecting component 2 to be rotatably connected to the box body 1 so that the collecting component 2 can be moved out of the box body 1, or, may configure the collecting component 2 to be detachably connected to the box body 1 so that the collecting component 2 can be moved out of the box body 1, and so on. Such adjustments and changes to the specific connection method between the collecting component 2 and the box body 1 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0067] Continue reading Figure 4 and Figure 5 , and then see Figure 6 and Figure 7 , Figure 6 is a schematic diagram of the structure of a collection component in one embodiment of the present invention; Figure 7 It is a schematic structural diagram of a collecting component according to another embodiment of the present invention.

[0068] Preferably, if Figures 4 to 7 As shown, the collecting assembly 2 includes a box body and a filter component 22 arranged in the box body, wherein the filter component 22 can allow the cleaning liquid to enter the liquid collecting chamber 13 and prevent solid particles in the cleaning liquid from entering the liquid collecting chamber 13, and the box body is slidably connected to the box body 1 to move the filter component 22 out of the box body 1.

[0069] Through such an arrangement, that is, by arranging the collecting assembly 2 to include a box body and a filter element 22 and the box body is slidably connected to the housing 1, the box body can be more conveniently pulled out of the housing 1 to facilitate the removal of the solid silver particles on the filter element 22, thereby further improving the recovery efficiency of the solid silver particles.

[0070] Preferably, if Figure 2 and Figure 6 As shown, a gripping portion 23 is provided on the box body, so that an operator can draw the box body out of the box body 1 with the help of the gripping portion 23 .

[0071] It should be noted that, in actual applications, those skilled in the art may configure the holding portion 23 as a pull ring, or may configure the holding portion 23 as a handle, or may configure the holding portion 23 as any other possible form, etc. Such adjustments and changes to the specific structural form of the holding portion 23 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0072] Preferably, the gripping portion 23 is a pull ring.

[0073] It should be noted that, in practical applications, those skilled in the art may configure the filter member 22 to be a flat plate structure, and the cleaning liquid in each cleaning tank 111 directly flows to the filter member 22 to collect the solid silver particles in the cleaning liquid. Alternatively, the collection assembly 2 may also be configured to further include a flow guide member, and the box body may have a filter tank 214 (such as Figure 6 and Figure 7 As shown in the figure, firstly, part of the cleaning liquid in the cleaning tank 111 is drained to the filter tank 214, and the cleaning liquid is filtered by the filter component 22 located in the filter tank 214, and the solid silver particles are collected on the filter component 22, etc. Such adjustments and changes to the specific collection method of the collection component 2 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0074] Preferably, the box body has a filter groove 214, the filter member 22 is located in the filter groove 214 and connected to the inner wall of the box body, and the collecting assembly 2 also includes a flow guide member 24, the flow guide member 24 is arranged adjacent to the filter groove 214 and the first end of the flow guide member 24 is connected to the cleaning chamber 11, and the second end of the flow guide member 24 is connected to the filter groove 214, and the flow guide member 24 is arranged to enable at least part of the cleaning liquid in the cleaning groove 111 to flow into the filter groove 214.

[0075] With such an arrangement, part of the cleaning liquid in the cleaning tank 111 can be guided to the filter tank 214 through the guide component 24, and the solid silver particles in the cleaning liquid can be collected by the filter component 22 in the filter tank 214, so that the collection of the solid silver particles is more concentrated, and it is easier to remove the solid silver particles from the cleaning device.

[0076] It should be noted that, in actual applications, those skilled in the art may configure the flow guide component 24 as a flow guide tube, or may configure the flow guide component 24 as a flow guide plate, etc. Such adjustments and changes to the specific structural form of the flow guide component 24 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0077] Preferably, the guide member 24 is a guide plate, which has an inclined surface and the first end of the guide plate is higher than the second end of the guide plate, the first end of the guide plate is connected to the inner wall of the box body 1, and the other end of the guide plate is connected to the box body, and the projection of the guide plate in the vertical direction is higher than the projection of the filter member 22 in the vertical direction.

[0078] By configuring the guide member 24 to be in the form of a guide plate, the cleaning liquid with a higher solid silver particle content at the bottom of the cleaning tank 111 can first flow through the guide plate, and then the cleaning liquid with a lower solid silver content above the cleaning tank 111 can flow through the guide plate, thereby flushing the solid silver particles remaining on the guide plate and flowing to the filter member 22, thereby being able to more thoroughly collect the solid silver particles in the cleaning liquid.

[0079] It should be noted that, in practical applications, those skilled in the art may configure the entire collecting assembly 2 to be able to be removed from the box body 1 (e.g. Figure 1 Alternatively, only the box body and the filter element 22 may be removed from the housing 1 (as shown in Figure 2 As shown), etc., such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should be included in the protection scope of the present invention.

[0080] Preferably, if Figure 2 As shown, only the box body and the filter element 22 are removed from the housing 1 (as shown in FIG. Figure 2 shown).

[0081] It should be noted that, in actual applications, those skilled in the art may configure the filter component 22 to be fixedly connected to the box body, or may configure the filter component 22 to be integrally arranged with the box body, or may configure the filter component 22 to be detachably connected to the box body, etc. Such adjustments and changes to the specific connection method between the filter component 22 and the box body do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0082] It should also be noted that in actual applications, those skilled in the art may configure the box body to be an integrated structure, or may configure the box body to include a first plate body 211, a second plate body 212 and a third plate body 213 connected in sequence, wherein the first plate body 211, the second plate body 212 and the third plate body 213 together form a filter groove 214 having an opening 215 at one end, and the filter element 22 is located in the filter groove 214, etc. Such adjustments and changes to the specific structural form of the box body do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0083] Preferably, if Figure 6 and Figure 7 As shown, the box body includes a first plate body 211, a second plate body 212 and a third plate body 213 connected in sequence. The first plate body 211, the second plate body 212 and the third plate body 213 together form a filter groove 214 with an opening 215 at one end. The filter component 22 is located in the filter groove 214 and the filter component 22 is detachably connected to the box body.

[0084] By configuring the filter component 22 to be detachably connected to the box body, on the one hand, it is possible to easily remove the filter component 22 from the box body, thereby facilitating the placement of the filter component 22 together with the solid silver particles collected on the filter component 22 into an oven for drying, thereby further improving the collection efficiency of the solid silver particles; on the other hand, when enough solid silver particles are collected on the filter component 22, the filter component 22 can be removed and replaced with a new filter component 22 to continue collecting the solid silver particles in the cleaning liquid, thereby avoiding the cleaning device from being unable to continue working due to the removal of the solid silver particles, thereby greatly improving the cleaning efficiency of the cleaning device; at the same time, the box body is configured to enclose a filter tank 214 having an opening 215 at one end, thereby facilitating the removal of the filter component 22 from the box body through the opening 215, thereby further facilitating the removal of the solid silver particles.

[0085] It should be noted that, in practical applications, the present invention does not impose any limitation on the specific setting type of the filter component 22, as long as it can allow the cleaning liquid to enter the liquid collecting chamber 13 and prevent the solid particles in the cleaning liquid from entering the liquid collecting chamber 13. For example, the filter component 22 can be set as a filter net, or the filter component 22 can be set as a filter plate, and the filter plate is provided with a plurality of small holes, which allow the cleaning liquid to pass through and prevent the solid silver particles from passing through, etc. Such adjustments and changes to the specific setting type of the filter component 22 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0086] Preferably, the filter member 22 is a filter plate, and a plurality of small holes are provided on the filter plate, and the small holes allow the cleaning liquid to pass through and prevent the solid silver particles from passing through.

[0087] It should be noted that, in actual applications, those skilled in the art may configure the filter component 22 to be a flat plate structure, or may configure the filter component 22 to have a curved surface structure 221 extending in a direction away from the cleaning chamber 11, and so on. Such adjustments and changes to the specific structural form of the filter component 22 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0088] Preferably, if Figure 5 As shown, a curved surface structure 221 is provided on the filter component 22 , wherein the curved surface structure 221 extends in a direction away from the cleaning chamber 11 .

[0089] By providing a curved surface structure 221 on the filter element 22, on the one hand, the capacity of collecting solid silver particles on the filter element 22 can be increased, so that more solid silver particles can be collected on the filter element 22; on the other hand, when the filter element 22 is taken out of the box body and placed in an oven for drying, the solid silver particles on the filter element 22 can be prevented from spilling, thereby making the collection of solid silver particles more convenient.

[0090] It should be noted that, in actual applications, those skilled in the art may configure the filter component 22 to be slidably connected to the box body so that the filter component 22 slides to the outside of the filter tank 214 through the opening 215, or, the filter component 22 may be configured to be located inside the box body and abutted against the box body, and the user directly takes the filter component 22 out of the box body, etc. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should be included in the protection scope of the present invention.

[0091] Preferably, the filter member 22 is slidably connected to the box body so that the filter member 22 slides to the outside of the filter tank 214 through the opening 215 .

[0092] Specifically, a slide groove (not shown in the figure) adapted to the filter component 22 is provided on the inner wall of the box body, and the filter component 22 is slidably connected to the box body through the slide groove.

[0093] It should be noted that, in actual applications, those skilled in the art may set the number of filter components 22 to only one, or may set the number of filter components 22 to two, or may set the number of filter components 22 to multiple, and so on. Such adjustments and changes to the specific setting number of filter components 22 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0094] Preferably, there are a plurality of filter components 22 , and the plurality of filter components 22 are spaced apart and distributed in the filter tank 214 along the vertical direction.

[0095] By setting the number of filter components 22 to be multiple, when a large amount of solid silver particles are collected on the filter components 22 of the uppermost layer, it is convenient to take out the filter components 22 of this layer from the box body and place them in an oven for drying, and enable the filter components 22 located at the lower layer to continue to collect the solid silver particles in the cleaning liquid, thereby avoiding the cleaning device from being unable to continue working due to the drying of the solid silver particles, and further improving the cleaning efficiency of the cleaning device.

[0096] It should be noted that, in actual applications, those skilled in the art may configure the cleaning tank 111 and the collecting chamber 12 to be disconnected from each other. After the screen 7 is cleaned, the cleaning liquid in the cleaning tank 111 is pumped into the collecting chamber 12 through a water pipe or a water pump. Alternatively, a sealed drainage component 3 may be provided to enable the cleaning tank 111 to be selectively connected to the collecting chamber 12 through the sealed drainage component 3, and so on. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should be included in the protection scope of the present invention.

[0097] Continue reading Figure 8 and Fig. 9 , and then see Fig.10 , Fig.10 The structure of the cleaning tank and the sealing drainage component of the present invention is schematically shown. Figure 2 , which shows a top view of the structure of each component.

[0098] Preferably, if Figures 8 to 10 As shown, the cleaning device of the present invention also includes a sealing drainage component 3, which is configured to prevent the cleaning liquid in the cleaning tank 111 from flowing into the collection chamber 12 when it is in the first working state, and to allow the cleaning liquid in the cleaning tank 111 to flow into the collection chamber 12 when it is in the second working state.

[0099] By providing a sealing drainage component 3, it is possible to prevent the cleaning liquid in the cleaning tank 111 from flowing into the collecting chamber 12 when cleaning the screen 7. After the cleaning of the screen 7 is completed, the cleaning liquid in the cleaning tank 111 flows into the collecting chamber 12, thereby facilitating the collection of solid silver particles. This greatly facilitates the convenient switching of the cleaning device between the screen 7 cleaning stage and the solid silver particle collection stage, and further improves the cleaning efficiency of the screen 7.

[0100] It should be noted that the first working state is a blocked state, that is, the cleaning tank 111 is not connected to the collecting chamber 12, and the cleaning liquid in the cleaning tank 111 cannot enter the collecting chamber 12; the second working state is a connected state, that is, the cleaning tank 111 is connected to the collecting chamber 12, and the cleaning liquid in the cleaning tank 111 can enter the collecting chamber 12.

[0101] It should be noted that, in practical applications, the present invention does not impose any limitation on the specific setting form of the sealing drainage component 3, as long as it can be achieved that the cleaning tank 111 is not connected to the collection chamber 12 when the screen 7 is cleaned, and the cleaning tank 111 is connected to the collection chamber 12 after the cleaning of the screen 7 is completed.

[0102] In a specific embodiment, the bottom of the cleaning tank 111 has a drain port 331, and the sealing drain component 3 is a control valve (not shown in the figure) arranged at the drain port 331. When the screen 7 in the cleaning tank 111 is cleaned, the control valve is closed to prevent the cleaning liquid in the cleaning tank 111 from flowing into the collecting chamber 12 through the drain port 331. After the cleaning of the screen 7 is completed, the control valve is opened so that the cleaning liquid in the cleaning tank 111 flows into the collecting chamber 12 through the drain port 331, thereby collecting solid silver particles in the collecting chamber 12.

[0103] In another specific embodiment, the bottom of the cleaning tank 111 has a drain outlet 331, and a sealing strip (not shown in the figure) is provided in the cleaning tank 111. The sealing strip is slidably connected to the bottom wall 33 of the cleaning tank 111. When the sealing strip is fully aligned with the cleaning tank 111, the drain outlet 331 is blocked. When the sealing strip is misaligned with the cleaning tank 111, the drain outlet 331 is opened.

[0104] In another specific embodiment, Figure 8 and Fig. 9 As shown, the bottom of the cleaning tank 111 has a drain port 331, and the sealing drain component 3 includes a valve plate 31 and an elastic member 32, wherein one end of the elastic member 32 is connected to the valve plate 31, and the other end of the elastic member 32 is connected to the inner wall of the cleaning tank 111. When the sealing drain component 3 is in a first working state, the valve plate 31 can overcome the elastic force of the elastic member 32 and move toward the direction close to the drain port 331 to block the drain port 331. When the sealing drain component 3 is in a second working state, the valve plate 31 can move toward the direction away from the drain port 331 under the action of the restoring force of the elastic member 32 to open the drain port 331.

[0105] With such a configuration, when the screen 7 is placed in the cleaning tank 111, the bottom of the screen 7 contacts the valve plate 31 and overcomes the elastic force of the elastic member 32 under the action of the gravity of the screen 7 and moves toward the drain port 331, thereby blocking the drain port 331 (e.g., Figure 8 As shown in the figure, the cleaning liquid in the cleaning tank 111 is prevented from flowing into the collecting chamber 12. When the screen 7 is cleaned and taken out of the cleaning tank 111 (i.e., the gravity of the screen 7 disappears), the valve plate 31 moves away from the drain port 331 under the restoring force of the elastic member 32, thereby opening the drain port 331 (as shown in the figure). Fig. 9 As shown in the figure, the cleaning liquid in the cleaning tank 111 is discharged into the collecting chamber 12 through the drain port 331, thereby facilitating the recovery of the solid silver particles in the cleaning liquid.

[0106] It should be noted that, although the above three embodiments can achieve that the cleaning tank 111 is not connected with the collection chamber 12 when the screen 7 is cleaned, and the cleaning tank 111 is connected with the collection chamber 12 after the cleaning of the screen 7 is completed, compared with setting the sealing drainage component 3 in the form of a control valve, setting the sealing drainage component 3 in the form of a valve plate 31 and an elastic member 32 can automatically achieve the sealing and opening of the drain port 331, thereby more conveniently switching between the cleaning stage of the screen 7 and the recovery stage of solid silver, further improving the cleaning efficiency of the screen 7.

[0107] Of course, preferably, the sealing drainage component 3 includes a valve plate 31 and an elastic member 32, wherein one end of the elastic member 32 is connected to the valve plate 31, and the other end of the elastic member 32 is connected to the inner wall of the cleaning tank 111. When the sealing drainage component 3 is in the first working state, the valve plate 31 can overcome the elastic force of the elastic member 32 and move toward the direction close to the drain port 331 to block the drain port 331. When the sealing drainage component 3 is in the second working state, the valve plate 31 can move toward the direction away from the drain port 331 under the action of the restoring force of the elastic member 32 to open the drain port 331.

[0108] Preferably, a sealing ring (not shown in the figure) is provided at the position corresponding to the valve plate 31 and the drain port 331, which can better prevent the cleaning liquid in the cleaning tank 111 from flowing out through the gap between the valve plate 31 and the bottom wall of the cleaning tank 111, thereby improving the sealing effect of the cleaning tank 111.

[0109] It should be noted that, in actual applications, those skilled in the art may set the valve plate 31 to be parallel to the bottom wall of the cleaning tank 111, or, may set the valve plate 31 to form a certain angle with the bottom wall of the cleaning tank 111, and so on. Such adjustments and changes to the relative position relationship between the valve plate 31 and the bottom wall 33 of the cleaning tank 111 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0110] Preferably, if Fig. 9 As shown, the valve plate 31 and the bottom wall 33 of the cleaning tank 111 form a certain angle.

[0111] Through such an arrangement, compared with the arrangement of the valve plate 31 to be parallel to the bottom wall 33 of the cleaning tank 111, the arrangement of the valve plate 31 to be at a certain angle to the bottom wall 33 of the cleaning tank 111 can make the cleaning liquid in the cleaning tank 111 flow into the collection chamber 12 more smoothly, thereby further improving the collection efficiency of the solid silver particles.

[0112] Specifically, the valve plate 31 is pivotally connected to the bottom wall 33 of the cleaning tank 111. When the screen 7 is cleaned, the valve plate 31 rotates relative to the bottom wall 33 under the action of the gravity of the screen 7, thereby blocking the drain port 331. When the screen 7 is cleaned and taken out of the cleaning tank 111, the valve plate 31 rotates in the opposite direction relative to the bottom wall 33 under the action of the elastic member 32, thereby opening the drain port 331.

[0113] Preferably, if Fig.10 As shown, a sealing portion 311 and a hollow portion 312 are provided on the valve plate 31 of the present invention, wherein the sealing portion 311 is arranged opposite to the drain port 331 .

[0114] Through such an arrangement, when the sealing drainage component 3 is in the first working state, the drainage port 331 can be blocked with the help of the sealing portion 311. When the sealing drainage component 3 is in the second working state, the cleaning liquid in the cleaning tank 111 can flow to the drainage port 331 through the hollow portion 312, thereby preventing the cleaning liquid and solid silver particles in the cleaning tank 111 from being unable to flow out smoothly from the drainage port 331 due to the setting of the valve plate 31.

[0115] It should be noted that, in actual applications, those skilled in the art may configure the elastic member 32 as a torsion spring, or, may configure the elastic member 32 as a compression spring, or, may configure the elastic member 32 as an elastic rope, etc. Such adjustments and changes to the specific setting type of the elastic member 32 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0116] Exemplarily, the elastic member 32 is an elastic cord.

[0117] Preferably, if Figure 4 and Figure 5 As shown, the cleaning device of the present invention further comprises a water outlet component, which is communicated with the liquid collecting chamber 13 and is used to discharge the water in the liquid collecting chamber 13 .

[0118] By providing the water outlet component, the cleaning liquid in the liquid collecting chamber 13 can be easily discharged.

[0119] It should be noted that, in actual applications, those skilled in the art may configure the water outlet component to be a water outlet pipe 51 and a water outlet valve 52 disposed on the water outlet pipe 51, wherein one end of the water outlet pipe 51 is connected to the liquid collecting chamber 13, and when the water in the liquid collecting chamber 13 needs to be discharged, the water outlet valve 52 is opened to discharge the water in the liquid collecting chamber 13, or the water outlet component may be configured to be a water outlet pipe 51 and a water pump, and the water in the liquid collecting chamber 13 is discharged by the water pump, or the water outlet component may be configured to be any other possible form, and so on. Such adjustments and changes to the specific setting types of the water outlet components do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0120] Preferably, if Figure 4 and Figure 5 As shown, the water outlet component includes a water outlet pipe 51 and a water outlet valve 52 arranged on the water outlet pipe 51 , and one end of the water outlet pipe 51 is connected to the liquid collecting chamber 13 .

[0121] Preferably, if Figure 4 and Figure 5 As shown, a water level detection component 6 is also provided in the liquid collecting chamber 13, and the water level detection component 6 is communicatively connected with the water outlet component.

[0122] Through such an arrangement, when the water level detection component 6 detects that the water level in the liquid collecting chamber 13 is too high, it can transmit a signal to the water outlet component, thereby facilitating timely discharge of the water in the liquid collecting chamber 13, avoiding overflow, and improving the safety of the cleaning device.

[0123] It should be noted that, although the present invention takes solid silver particles as an example to introduce the cleaning device of the present invention, this is not restrictive. The cleaning device of the present invention is also suitable for collecting any other possible solid particles when cleaning the screen 7, and so on. Such flexible adjustment and change does not deviate from the principle and scope of the present invention and should be included in the protection scope of the present invention.

[0124] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A cleaning device for a screen, characterized in that: The cleaning device comprises a box body and a collecting assembly. The box body is provided with a cleaning chamber, a collecting chamber and a liquid collecting chamber from top to bottom in sequence. The cleaning chamber is used to clean the screen. The cleaning chamber can be connected with the collecting chamber so that the cleaning liquid in the cleaning chamber flows into the collecting chamber. The collecting assembly is located in the collecting chamber and can be moved out of the housing. The collecting assembly is configured to allow the cleaning liquid to enter the collecting chamber and prevent solid particles in the cleaning liquid from entering the collecting chamber.

2. The cleaning device for screen according to claim 1, characterized in that: The cleaning chamber is provided with a plurality of cleaning tanks adapted to the screen, each of which can be communicated with the collecting chamber. The cleaning device also includes an ultrasonic cleaning module, which is used to vibrate the cleaning liquid in the cleaning tank so as to clean the slurry on the screen.

3. The cleaning device for screen according to claim 2, characterized in that: The collecting assembly includes a box body and a filter component, wherein the filter component allows the cleaning liquid to enter the liquid collecting chamber and prevents solid particles in the cleaning liquid from entering the liquid collecting chamber, and the box body is slidably connected to the box body so that the filter component can be removed from the collecting chamber.

4. The cleaning device for screen according to claim 3, characterized in that: The box body has a filter groove, the filter member is located in the filter groove and connected to the inner wall of the box body, the collecting assembly also includes a guide member, the guide member is arranged adjacent to the filter groove and the first end of the guide member is connected to the cleaning chamber, the second end of the guide member is connected to the filter groove, and the guide member is arranged to enable at least part of the cleaning liquid in the cleaning groove to flow into the filter groove.

5. The cleaning device for screen according to claim 4, characterized in that: The guide member is a guide plate, the guide plate has an inclined surface, the first end of the guide plate is higher than the second end of the guide plate, the first end of the guide plate is connected to the inner wall of the box body, the second end of the guide plate is in contact with the box body, and the projection of the guide plate in the vertical direction is higher than the projection of the filter member in the vertical direction; And / or, the box body includes a first plate body, a second plate body and a third plate body connected in sequence, the first plate body, the second plate body and the third plate body together form the filter tank, the filter component is located in the filter tank and the filter component is detachably connected to the box body.

6. The cleaning device for screen according to claim 5, characterized in that: The filter member is provided with a curved surface structure, wherein the curved surface structure extends in a direction away from the cleaning chamber; And / or, the filter tank has an opening, and the filter member is slidably connected to the box body so that the filter member moves to the outside of the filter tank through the opening; And / or, there are multiple filter components and the multiple filter components are distributed at intervals in the filter tank along the vertical direction.

7. The cleaning device for screen according to claim 2, characterized in that: The cleaning device further comprises a plurality of partitions, wherein the cleaning tank is formed between two adjacent partitions. The ultrasonic cleaning module includes a plurality of ultrasonic transducers. A receiving groove is provided in the partition, and the ultrasonic transducers are located in the receiving groove.

8. The cleaning device for screen according to claim 7, characterized in that: The ultrasonic cleaning module also includes a control switch, which is communicatively connected to the ultrasonic transducer. There are multiple control switches, which are arranged in one-to-one correspondence with the ultrasonic transducers.

9. The cleaning device for screen according to any one of claims 2 to 8, characterized in that: The cleaning device also includes a sealing drainage component, which is configured to prevent the cleaning liquid in the cleaning tank from flowing into the collection chamber when it is in a first working state, and is also configured to allow the cleaning liquid in the cleaning tank to flow into the collection chamber when it is in a second working state.

10. The cleaning device for screen according to claim 9, characterized in that: The bottom of the cleaning tank has a drain port, and the sealing drain component includes a valve plate and an elastic member, one end of the elastic member is connected to the valve plate, and the other end of the elastic member is connected to the inner wall of the cleaning tank. The valve plate can overcome the elastic force of the elastic member and move toward the drain port to block the drain port. The valve plate can also move away from the drain port under the restoring force of the elastic member to open the drain port.

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