Bubble tank cleaning device

Abstract

The utility model provides a soaking tank cleaning device. The soaking tank cleaning device comprises a liquid supply mechanism; the butt-joint liquid outlet mechanism comprises a butt-joint valve seat, a butt-joint valve element and driving equipment, a butt-joint cavity for containing the butt-joint valve element is formed in the upper portion of the butt-joint valve seat, and a plurality of lower butt-joint channels communicated with the butt-joint cavity are formed in the lower portion of the butt-joint valve seat; the butt-joint valve element is arranged in the butt-joint cavity, at least one upper butt-joint channel is formed in the butt-joint valve element, and the end, away from the lower butt-joint channel, of the upper butt-joint channel is connected with the liquid supply mechanism; the driving equipment is connected with the butt-joint valve core; and the cleaning tanks are connected with the lower butt joint channels in a one-to-one correspondence manner and are used for storing the cleaning liquid conveyed by the butt joint liquid outlet mechanism. The device has the beneficial effects that the device is safe to use, few in pipelines, low in cost and capable of treating various different types of batteries at the same time; different chemicals can be automatically added, and meanwhile the dosage of various chemicals can be controlled.

Description

Technical Field

[0001] This application belongs to the field of battery manufacturing, and specifically relates to a bubbling tank cleaning device. Background Technology

[0002] In recent years, with the increasing demand for clean energy, the photovoltaic industry has developed rapidly. In photovoltaic cell production, the high-precision and high-quality production requirements have driven advancements in tank cleaning technology. Early photovoltaic cell production technology was relatively simple and less sensitive to impurities. However, with the increasing demands for cell conversion efficiency, even minute impurities can significantly impact cell performance. For example, metallic impurities can form recombination centers inside the cell, reducing minority carrier lifetime and consequently decreasing photoelectric conversion efficiency. This makes tank cleaning a crucial step in ensuring photovoltaic cell performance. However, currently, there is no practical operational solution. Only tanks with chemical pressure tanks can be automatically replenished. For other tanks, the chemical dosage must be precisely calculated, and chemicals must be manually transported from the storage room and poured into the tanks. This process is not only time-consuming and labor-intensive, but also requires technicians to wear masks, protective clothing, and gloves to prevent chemical splashes, as the chemicals involve acids, alkalis, and hydrogen peroxide. If each chemical is introduced into a tank through a single pipe, more chemical storage tanks, valves, and pipelines are needed, making the process cumbersome and expensive.

[0003] Therefore, there is an urgent need for a cleaning device that can reduce manual operation, save time and effort, and is safe to use. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this application is to provide a soaking tank cleaning device to solve the problems of time-consuming and labor-intensive soaking tank cleaning process, easy injury to personnel from chemical splashes, multiple pipelines, and high cost.

[0005] To solve the above problems, the technical solution adopted in this application is:

[0006] A bath cleaning device, comprising:

[0007] Liquid supply mechanism, used to hold and deliver cleaning fluid;

[0008] A liquid dispensing mechanism includes a docking valve seat, a docking valve core, and a driving device. The upper part of the docking valve seat has a docking cavity for receiving the docking valve core, and the lower part of the docking valve seat has multiple lower docking channels communicating with the docking cavity. The docking valve core is disposed within the docking cavity and has at least one upper docking channel. The end of the upper docking channel furthest from the lower docking channel is connected to a liquid supply mechanism. The driving device is connected to the docking valve core and drives the docking valve core to rotate so that the end of the upper docking channel closest to the lower docking channel docks and communicates with the liquid inlet end of the vertically aligned lower docking channel.

[0009] At least one cleaning tank, which is connected to the lower docking channel in a one-to-one correspondence, is used to store the cleaning fluid delivered by the docking liquid dispensing mechanism.

[0010] Compared to manual handling of chemicals, this design saves a significant amount of time in handling and pouring chemicals, and prevents the danger of chemical splashes. By rotating the docking valve core, the upper docking channel connects with the lower docking channel of the designated cleaning tank, allowing the cleaning solution to be delivered to the designated tank without the need to install constant pressure tanks, valves, pipelines, etc. for each cleaning tank, thus reducing costs.

[0011] As a preferred embodiment of this invention, the cleaning device further includes a pressure-applying mechanism disposed on the docking valve seat, which is used to apply pressure to the docking valve core so that the end of the upper docking channel near the lower docking channel is pressed and sealed with the liquid inlet end of the lower docking channel which is aligned vertically, thereby ensuring that the upper docking channel and the lower docking channel are connected while effectively preventing the cleaning fluid from leaking from the docking seam.

[0012] As a preferred embodiment of this invention, the docking valve core includes an elastic column and an upper docking channel disposed within the elastic column. The elastic column is located within the docking cavity, and the upper docking channel extends through the upper and lower end faces of the elastic column in the thickness direction. The upper docking channel of the elastic column is used to dock and communicate with the lower docking channel on the docking valve seat, for guiding the cleaning fluid into the cleaning tank below.

[0013] As a preferred embodiment of this invention, a connecting shaft is connected to the bottom of the elastic column. The upper end of the connecting shaft is connected to the elastic column, and the lower end of the connecting shaft passes through the docking valve seat and connects to the output shaft of the driving device. The driving device transmits power to the elastic column through the connecting shaft. Under the drive of the driving device, the elastic column rotates at a certain angle within the docking cavity to the desired position. One of the upper docking channels of the elastic column is docked and connected with the lower docking channel, which is aligned vertically. The cleaning fluid flows smoothly from the supply mechanism through the elastic column and the docking valve seat, and is finally delivered to the required cleaning tank. The entire cleaning device has a simple structure, avoiding the introduction of too many chemical storage tanks, valves, and pipelines, significantly reducing equipment costs and subsequent maintenance costs.

[0014] As a preferred embodiment of this invention, the elastic column is made of acid and alkali resistant rubber. The elastic column deforms under external force and returns to its original shape when no external force is applied. When the pressure applying mechanism applies downward pressure to the elastic column, it can press the upper and lower docking channels together, ensuring a seal at the joint and preventing leakage of cleaning fluid. When the elastic column is no longer subjected to external force, it returns to its original shape. The driving device then drives the elastic column to rotate until the upper docking channel of the docking valve core aligns with the next lower docking channel. At this point, the pressure applying mechanism presses down again until the upper docking channel and the lower docking channel below are sealed and pressed tightly.

[0015] As a preferred embodiment of this invention, the valve seat is made of acid and alkali resistant rubber, which can effectively prevent corrosion from cleaning fluids (such as corrosive chemicals) and extend its service life.

[0016] As a preferred embodiment of this invention, the upper docking channel is a bent channel, with the upper end of the upper docking channel away from the lower docking channel located at the center of the upper end face of the elastic column, and the lower end of the upper docking channel near the lower docking channel located at a non-center of the upper end face of the elastic column.

[0017] As a preferred embodiment of this utility model, the upper docking channel includes an integrally formed upper vertical section, a middle horizontal section, and a lower vertical section. The upper vertical section is connected to the liquid supply mechanism through an upper connecting pipe, and the lower vertical section is docked and connected to the liquid inlet end of any lower docking channel under the pressure of the pressure applying mechanism.

[0018] As a preferred embodiment of this invention, the end of the upper connecting pipe near the upper docking channel is connected to the upper docking channel via a rubber ring, which prevents the upper connecting pipe from rotating when the docking valve core rotates.

[0019] As a preferred embodiment of this invention, the docking valve seat is provided with several lower docking channels for docking with the upper docking channel, and each lower docking channel is connected to a corresponding cleaning tank. By adjusting the upper docking channel, the upper docking channel can be connected to different lower docking channels, allowing liquid to be discharged according to the cleaning sequence, meeting the processing requirements of different cleaning processes, and improving production efficiency.

[0020] As a preferred embodiment of this utility model, the center of the docking valve seat is provided with a central through hole that passes through the inside and outside of the docking valve seat for the connecting shaft to pass through, and several lower docking channels are arranged circumferentially at intervals in the central through hole.

[0021] As a preferred embodiment of this invention, each of the lower docking channels is connected to the cleaning tank via a lower connecting pipe.

[0022] Preferably, the pressure applying mechanism is a cylinder vertically installed on the upper part of the docking valve seat. The lower pressure rod of the cylinder is provided with a flat pressure plate at its end, which is used to apply downward pressure to the docking valve core so that the upper docking channel of the docking valve core abuts and presses against the lower docking channel that is aligned vertically.

[0023] More preferably, there are two sets of pressure applying mechanisms, which are symmetrically fixed on the inner wall of the docking valve seat and arranged opposite each other. This can prevent uneven force distribution on the elastic column. The flat pressure plate at the end of the cylinder's lower rod can increase the contact area between the pressure applying mechanism and the elastic column, which is more conducive to ensuring uniform force distribution on the elastic column.

[0024] As a preferred embodiment of this invention, the liquid supply mechanism includes at least a storage tank for storing cleaning fluid, and the storage tank is connected to the upper docking channel of the docking valve core via an upper connecting pipe. Each storage tank stores one type of cleaning fluid, or the liquid from multiple storage tanks is simultaneously fed into the docking dispensing mechanism to be configured as a cleaning fluid for use. Different chemicals can be automatically added according to the performance requirements of the battery to be treated, and the dosage of various chemicals can be controlled, thereby better cleaning the battery and improving its conversion efficiency.

[0025] As a preferred embodiment of this invention, a control valve is provided between the storage tank and the dispensing mechanism. The amount of liquid added each time can be controlled by adjusting the control valve, eliminating the need for manual addition, automatically controlling the addition process, effectively preventing chemical splashing, and ensuring the entire process is fast and safe.

[0026] As a preferred embodiment of this invention, the cleaning device further includes a cleaning mechanism connected to the docking liquid outlet mechanism for cleaning the docking liquid outlet mechanism. The cleaning mechanism can periodically clean each channel, extending the service life of the equipment.

[0027] As a preferred embodiment of this invention, the cleaning tank is equipped with a drain valve to facilitate the replacement of the cleaning fluid in the cleaning tank.

[0028] Compared with the prior art, the beneficial effects of this application are:

[0029] 1. No manual liquid addition is required; the liquid addition is automatically controlled, effectively preventing chemical splashing during the liquid addition process. The entire process is fast and safe.

[0030] 2. Liquid can be dispensed in a quantitative manner according to the cleaning sequence to meet the requirements of different cleaning processes and improve production efficiency;

[0031] 3. It can automatically add different chemicals according to the performance required by the battery to be processed, and can control the amount of each chemical, so as to better clean the battery and improve the battery conversion efficiency.

[0032] 4. The pipelines can be cleaned regularly, extending the service life of the equipment;

[0033] 5. The entire cleaning device has a simple structure, avoiding the introduction of too many chemical storage tanks, valves, and pipelines, which significantly reduces equipment costs and subsequent maintenance costs. Attached Figure Description

[0034] Figure 1 This is a simplified structural diagram of the cleaning device of this application.

[0035] Figure 2 This is a structural diagram of the cleaning device of this application (cleaning tank omitted).

[0036] Figure 3 This is a top view of the cleaning apparatus of this application (cleaning tank omitted).

[0037] Figure 4 This is a structural diagram of the docking and liquid dispensing mechanism of this application.

[0038] Figure 5 This is a structural diagram of the docking valve seat of this application.

[0039] Figure 6 This is a top view of the docking valve seat of this application.

[0040] Figure 7 This is a structural diagram of the docking component of this application.

[0041] Figure 8 This is an internal structural diagram of the docking component of this application.

[0042] Figure 9 This is a structural diagram of the upper connecting pipe of this application.

[0043] Figure 10 yes Figure 3 AA sectional view.

[0044] In the attached image:

[0045] 1-Liquid supply mechanism; 11-Magnetostrictive level gauge;

[0046] 2-Discharge mechanism; 21-Discharge valve seat; 211-Lower discharge channel; 212-Central through hole; 22-Discharge valve core; 221-Upper discharge channel; 222-Elastic column; 23-Drive device; 231-Connecting shaft;

[0047] 3-Pressure application mechanism;

[0048] 4-Cleaning tank;

[0049] 5-Upper connecting pipe; 51-Rubber ring;

[0050] 6-Lower connecting pipe. Detailed Implementation

[0051] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application.

[0052] It should be noted that the process equipment or apparatus not specifically mentioned in the following embodiments are all conventional equipment or apparatus in the art.

[0053] Furthermore, it should be understood that the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, does not preclude the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, unless otherwise stated. It should also be understood that the combined connection relationship between one or more devices / apparatus mentioned in this application does not preclude the existence of other devices / apparatus before or after the combined devices / apparatus, or the insertion of other devices / apparatus between these explicitly mentioned devices / apparatus, unless otherwise stated. Moreover, unless otherwise stated, the numbering of each method step is merely a convenient tool for identifying each method step, and not for limiting the order of the method steps or limiting the scope of implementation of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this application.

[0054] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0055] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," "axial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The present application will be further described below with reference to specific embodiments, but the scope of protection of the present application is not limited thereto.

[0059] like Figure 1 As shown, the foam tank cleaning device of this utility model includes:

[0060] Liquid supply mechanism 1 is used to hold and deliver cleaning fluid;

[0061] The dispensing mechanism 2 includes a dispensing valve seat 21, a dispensing valve core 22, and a driving device 23. The upper part of the dispensing valve seat 21 has a dispensing cavity for receiving the dispensing valve core 22, and the lower part of the dispensing valve seat 21 has multiple lower dispensing channels 211 communicating with the dispensing cavity. The dispensing valve core 22 is disposed within the dispensing cavity, and at least one upper dispensing channel 221 is provided within the dispensing valve core 22. The end of the upper dispensing channel 221 away from the lower dispensing channel 211 is connected to the dispensing mechanism 1. The driving device 23 is connected to the dispensing valve core 22 and is used to drive the dispensing valve core 22 to rotate so that the end of the upper dispensing channel 221 near the lower dispensing channel 211 is connected to the liquid inlet end of the vertically aligned lower dispensing channel 211.

[0062] Multiple cleaning tanks 4 are connected one-to-one with the lower docking channel 211 and are used to store cleaning fluid delivered by the docking liquid dispensing mechanism 2.

[0063] like Figure 1 As shown, the cleaning device also includes a pressure applying mechanism 3, which is disposed on the docking valve seat 21 and is used to apply pressure to the docking valve core 22 so that the end of the upper docking channel 221 near the lower docking channel 211 is pressed and sealed with the liquid inlet end of the lower docking channel 211 which is aligned vertically, so as to ensure that the upper docking channel and the lower docking channel are connected while effectively preventing the cleaning fluid from leaking from the docking seam.

[0064] like Figure 1 As shown, the docking valve core 22 includes an elastic column 222 and an upper docking channel 221 disposed within the elastic column. The elastic column 222 is located within the docking cavity, and the upper docking channel 221 extending through the upper and lower end faces of the elastic column in the thickness direction is provided within the elastic column 222. The upper docking channel 221 of the elastic column 222 is used to dock and communicate with the lower docking channel on the docking valve seat 21, for guiding the cleaning fluid into the cleaning tank below.

[0065] like Figure 1 As shown, the bottom of the elastic column 222 is connected to a connecting shaft 231. The upper end of the connecting shaft 231 is connected to the elastic column 222, and the lower end of the connecting shaft 231 passes through the docking valve seat 21 and is connected to the output shaft of the drive device 23. The drive device 23 transmits power to the elastic column 222 through the connecting shaft 231. Under the drive of the drive device 23, the elastic column 222 rotates at a certain angle within the docking cavity to the desired position. The upper docking channel of the elastic column 222 connects with the lower docking channel that is aligned vertically. The cleaning fluid flows smoothly from the supply mechanism through the elastic column and the docking valve seat, and is finally delivered to the required cleaning tank. The entire cleaning device has a simple structure, avoiding the introduction of too many chemical storage tanks, valves, and pipelines, significantly reducing equipment costs and subsequent maintenance costs.

[0066] In some embodiments of this utility model, the elastic column 222 is made of acid and alkali resistant rubber. The elastic column 222 deforms under external force and returns to its original shape when no external force is applied. When the pressure applying mechanism applies downward pressure to the elastic column, it can press the upper and lower docking channels together to ensure a seal at the joint and prevent leakage of cleaning fluid. When the elastic column is not subjected to external force, it returns to its original shape. The driving device drives the elastic column to rotate until the upper docking channel of the docking valve core is aligned with the next lower docking channel. At this time, the pressure applying mechanism presses down again until the upper docking channel and the lower docking channel below are sealed and pressed together.

[0067] In some embodiments of this utility model, the docking valve seat is made of acid and alkali resistant rubber, which can effectively prevent corrosion from cleaning fluids (such as corrosive chemicals) and extend its service life.

[0068] like Figure 1 As shown, the upper docking channel 221 is a bent channel. The upper end of the upper docking channel 221 away from the lower docking channel 211 is located at the center of the upper end face of the elastic column 222, and the lower end of the upper docking channel 221 near the lower docking channel 211 is located at the non-center of the upper end face of the elastic column 222.

[0069] like Figure 1 As shown, the upper docking channel 221 includes an integrally formed upper vertical section, a middle horizontal section and a lower vertical section. The upper vertical section is connected to the liquid supply mechanism 1 through the upper connecting pipe 5, and the lower vertical section is docked and connected to the liquid inlet end of any lower docking channel 211 under the pressure of the pressure applying mechanism 3.

[0070] like Figure 1 As shown, the docking valve seat 21 is provided with several lower docking channels 211 for docking with the upper docking channel, and each lower docking channel 211 is connected to a cleaning tank 4. By adjusting the rotation angle of the upper docking channel, the upper docking channel can be docked and connected with different lower docking channels, allowing for quantitative liquid discharge according to the cleaning sequence, simultaneous processing of multiple different types of batteries, and improving production efficiency.

[0071] like Figure 1 As shown, the center of the docking valve seat 21 is provided with a central through hole 212 that passes through the inside and outside of the docking valve seat 21 for the connecting shaft 231 to pass through, and several lower docking channels 211 are arranged circumferentially in the central through hole 212.

[0072] like Figure 1 As shown, each of the lower docking channels 211 is connected to the cleaning tank 4 through the lower connecting pipe 6.

[0073] like Figure 1As shown, the end of the upper connecting pipe 5 near the upper docking channel is connected to the upper docking channel via a rubber ring 51, which prevents the upper connecting pipe from rotating when the docking valve core rotates.

[0074] like Figure 1 As shown, the pressure applying mechanism 3 is a cylinder vertically installed on the upper part of the docking valve seat 21. The lower pressure rod of the cylinder is provided with a flat pressure plate, which is used to apply downward pressure to the docking valve core 22 so that the upper docking channel 221 of the docking valve core 22 abuts and presses against the lower docking channel 211 that is aligned vertically.

[0075] In some embodiments of this application, there are two sets of pressure applying mechanisms 3, which are symmetrically fixed on the inner wall of the docking valve seat and arranged opposite to each other. This can prevent uneven force distribution on the elastic column. The end of the lowering rod of the cylinder is provided with a flat pressure plate. The design of the flat pressure plate increases the contact area between the pressure applying mechanism and the elastic column, which is more conducive to ensuring that the elastic column is subjected to uniform force.

[0076] like Figure 1 As shown, the liquid supply mechanism 1 includes at least a liquid storage tank for storing cleaning fluid. The liquid storage tank is connected to the upper docking channel 221 of the docking valve core 22 via an upper connecting pipe. Each liquid storage tank stores one type of cleaning fluid, or the liquid from multiple liquid storage tanks is simultaneously fed into the docking dispensing mechanism to be configured as a cleaning fluid for use. Different chemicals can be automatically added according to the performance requirements of the battery to be treated, and the dosage of various chemicals can be controlled, which can better clean the battery and improve the battery conversion efficiency.

[0077] In some embodiments of this utility model, a control valve is provided between the liquid storage tank and the dispensing mechanism 2.

[0078] In some embodiments of this invention, the storage tank is equipped with a magnetostrictive level gauge 11, which can precisely control the amount of cleaning fluid used. Different chemicals can be automatically added according to the performance requirements of the battery to be treated, and the dosage of each chemical can be controlled, thus better cleaning the battery and improving its conversion efficiency.

[0079] In some embodiments of this invention, the cleaning device further includes a cleaning mechanism connected to the docking liquid outlet mechanism 2, which is used to clean the docking liquid outlet mechanism 2. The cleaning mechanism can periodically clean each channel, extending the service life of the equipment.

[0080] The above embodiments are for illustrating the implementation schemes disclosed in this application and should not be construed as limiting this application. Furthermore, various modifications listed herein, as well as variations in methods and compositions of the utility model, will be apparent to those skilled in the art without departing from the scope and spirit of this application. Although this application has been specifically described in conjunction with various specific preferred embodiments, it should be understood that this application should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the utility model should be included within the scope of this application.

Claims

1. A tank cleaning apparatus, characterized by include: Liquid supply mechanism (1) is used to hold and deliver cleaning fluid; The docking liquid dispensing mechanism (2) includes a docking valve seat (21), a docking valve core (22), and a driving device (23). The upper part of the docking valve seat (21) is provided with a docking cavity for receiving the docking valve core (22), and the lower part of the docking valve seat (21) is provided with multiple lower docking channels (211) that communicate with the docking cavity. The docking valve core (22) is disposed in the docking cavity, and at least one upper docking channel (221) is provided in the docking valve core (22). The end of the upper docking channel (221) away from the lower docking channel (211) is connected to the liquid supply mechanism (1). The driving device (23) is connected to the docking valve core (22) and is used to drive the docking valve core (22) to rotate so that the end of the upper docking channel (221) near the lower docking channel (211) is docked and communicated with the liquid inlet end of the lower docking channel (211) which is aligned vertically. as well as At least one cleaning tank (4) is connected to the lower docking channel (211) in a one-to-one correspondence, and is used to store the cleaning fluid delivered by the docking liquid dispensing mechanism (2).

2. The tank cleaning device according to claim 1, characterized in that: It also includes a pressure applying mechanism (3), which is disposed on the docking valve seat (21) and is used to apply pressure to the docking valve core (22) so that the end of the upper docking channel (221) near the lower docking channel (211) is pressed and sealed with the liquid inlet end of the lower docking channel (211) which is aligned vertically.

3. The tank cleaning device according to claim 1, characterized in that: The docking valve core (22) includes an elastic column (222) and an upper docking channel (221) disposed in the elastic column (222). The elastic column (222) is located in the docking cavity, and the elastic column (222) is provided with an upper docking channel (221) that penetrates the upper and lower end faces of the elastic column (222) in the thickness direction.

4. The tank cleaning device according to claim 3, characterized in that: The bottom center of the elastic column (222) is provided with a connecting shaft (231). The upper end of the connecting shaft (231) is connected to the elastic column (222), and the lower end of the connecting shaft (231) passes through the docking valve seat (21) and is connected to the output shaft of the drive device (23).

5. The tank cleaning device according to claim 3, characterized in that: The upper docking channel (221) is a bent channel. The upper end of the upper docking channel (221) away from the lower docking channel (211) is located at the center of the upper end face of the elastic column (222), and the lower end of the upper docking channel (221) near the lower docking channel (211) is located at the non-center of the upper end face of the elastic column (222).

6. The tank cleaning device according to claim 1, characterized in that: The upper docking channel (221) includes an integrally formed upper vertical section, a middle horizontal section and a lower vertical section. The upper vertical section is connected to the liquid supply mechanism (1) through an upper connecting pipe. The lower vertical section is connected to the liquid inlet end of any lower docking channel (211) under the pressure of the pressure applying mechanism (3).

7. The tank cleaning device according to claim 2, characterized in that: The docking valve seat (21) is provided with several lower docking channels (211) for docking with the upper docking channel (221), and each lower docking channel (211) is connected to a cleaning tank (4).

8. The tank cleaning device according to claim 1, characterized in that: Each of the lower docking channels (211) is connected to the cleaning tank (4) through a lower connecting pipe.

9. The bubbling tank cleaning device according to claim 2, characterized in that: The pressure applying mechanism (3) is a cylinder vertically installed on the upper part of the docking valve seat (21), and the lower pressure rod of the cylinder is provided with a flat pressure plate at its end.

10. The tank cleaning device according to claim 1, characterized in that: The liquid supply mechanism (1) includes at least a liquid storage tank for storing cleaning liquid, which is connected to the upper docking channel (221) of the docking valve core (22) via an upper connecting pipe.

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