Automatic cleaning device for chemical storage tank

Abstract

The application relates to the technical field of automatic cleaning of chemical storage tanks, and discloses an automatic cleaning device for a chemical storage tank, which comprises a cleaning assembly and a control system, the cleaning assembly is externally provided with an annular frame body, the two sides of the annular frame body are symmetrically provided with telescopic supporting assemblies, a lower sliding block is inserted below the annular frame body, a pressing rod is arranged on the side surface of the lower sliding block, one end of the pressing rod is movably inserted into the side surface of the telescopic supporting assembly, the bottom end of the telescopic supporting assembly is symmetrically connected with supporting plates, and the side of the supporting plate close to the telescopic supporting assembly is provided with a piston cylinder mounted on the telescopic supporting assembly. The supporting legs of the device are arranged in a movable structure, the positions of the supporting legs can be adjusted according to actual requirements, the device can adapt to the cleaning requirements of vertical or horizontal chemical storage tanks, the adaptability is improved, and the bottom space can be cleaned through the cooperation of the movable brush, so that the working efficiency of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of automatic cleaning technology for chemical storage tanks, specifically to an automatic cleaning device for chemical storage tanks. Background Technology

[0002] Chemical storage tanks are containers used to store chemical raw materials or corrosive liquids. They are classified into three main categories according to their materials: metal, non-metal, and metal-non-metal composite. Structurally, chemical storage tanks are divided into vertical tanks and horizontal tanks. Vertical tanks have a smaller footprint and greater height, making them suitable for scenarios with limited space and large storage volumes. Horizontal tanks are easier to install and maintain, and are typically used for storing small amounts of media or situations requiring frequent handling. Existing cleaning devices for small chemical storage tanks cannot be adapted to both vertical and horizontal tanks in actual use. Furthermore, the bottom of the chemical storage tank is easily overlooked during actual cleaning operations, thus affecting the cleaning effect. Summary of the Invention

[0003] In view of the shortcomings of existing chemical storage tank cleaning devices mentioned in the background art, the present invention provides an automatic chemical storage tank cleaning device with the advantages of good adaptability and good cleaning effect, thus solving the technical problems mentioned in the background art.

[0004] The present invention provides the following technical solution: an automatic cleaning device for chemical storage tanks, including a cleaning component and a control system. The cleaning component is externally configured with an annular frame, and telescopic support components are symmetrically installed on both sides of the annular frame. A lower slider is inserted into the lower part of the annular frame, and a pressure rod is provided on the side of the lower slider. One end of the pressure rod is movably inserted into the side of the telescopic support component. A support plate is symmetrically connected to the bottom end of the telescopic support component. A piston cylinder is installed on the telescopic support component on the side of the support plate near the telescopic support component, and the piston cylinder is connected to the interior of the lower slider through a hose.

[0005] Furthermore, the cleaning assembly consists of a drive assembly and a screw, which is installed in the middle of the annular frame. The screw is coaxial with the annular frame, and the bottom end of the screw is a nozzle connected to an external water pipe. The control system controls the motor to drive the screw to rotate, so that high-pressure water can be sprayed from the nozzle and act on the inside of the chemical storage tank to achieve the cleaning function. The specific accessory model can use existing ones that can achieve the corresponding effect, and there are no restrictions here. A cleaning brush is installed on the outside of the nozzle. The cleaning brush is movably connected to the nozzle through a torsion spring shaft. In its natural state, the cleaning brush is tilted downwards, and the cleaning brush has a segmented structure. The upper part is a connecting rod, and both ends of the connecting rod are connected through a torsion spring shaft. The bottom of the cleaning brush is an arc-shaped brush, and its arc bends towards the center of the device, which can facilitate entry into the storage tank and can also adapt to storage tanks with different inner diameters. With the cooperation of the connecting rod, it can also achieve a cleaning effect on the bottom of the storage tank, improving the cleaning efficiency and working quality of the device.

[0006] Furthermore, an upper sliding groove is provided at the top of the annular frame, which is located on the outer edge of the annular frame. A lower sliding groove, which is symmetrical to the upper sliding groove, is provided at the bottom of the annular frame. A slot is provided at the top inside the lower sliding groove. There are four slots, which are evenly distributed on one side of the semicircle of the annular frame. The telescopic support assembly can be fixed in the position of the corresponding slot by the cooperation of the pressure rod and the lower sliding block, so that the device can meet the needs of upright or horizontal use.

[0007] Furthermore, the telescopic support assembly can be electrically telescopic or hydraulically driven, and is controlled by a control system. An upper slider is connected to the top of the telescopic support assembly, and the upper slider is movably inserted into an upper sliding groove. Ball bearings are provided at the contact point between the upper slider and the upper sliding groove to reduce friction and facilitate manual operation. Several ball bearings are provided at the bottom of the telescopic support assembly to facilitate movement of the device. Support legs are installed at the bottom of the telescopic support assembly, and the support legs are controlled by the control system. The difference in the extension range of the support legs is greater than the diameter of the ball bearings installed at the bottom of the telescopic support assembly. The support legs can be hydraulically or electrically telescopic. Controlling the extension and retraction of the support legs ensures the stability of the telescopic support assembly and facilitates its positioning and other operations. A slot is provided on the side of the telescopic support assembly at the bottom of the annular frame to cooperate with the pressure rod and fix the position of the lower slider. A vertical limiting groove is provided on the inner side of the telescopic support assembly that contacts the annular frame.

[0008] Furthermore, the top of the lower slider is movably inserted into the lower groove, and the outer side of the lower slider is inserted into the limiting groove. The portion of the lower slider inserted into the lower groove has a protrusion, and a filling block is provided inside the protrusion. The filling block is sealed to the protrusion, and the filling block is connected to the protrusion through a telescopic spring. When there is no external force interference, the height of the lower slider inside the lower groove is less than the height of the lower groove. When the lower slider moves upward and the protrusion is inserted into the slot, the filling block is compressed by the pressure of the inner wall of the slot. At the same time, the pressure rod and the slot are on the same horizontal plane, and the inner cavity of the filling block is connected to a connecting hose extending to the outside. The connecting hose is made of soft material and has no extensibility. The length of the connecting hose is adapted to the telescopic support assembly's telescopic range, so that the connecting hose and the telescopic support assembly will not affect each other.

[0009] Furthermore, the pressure rod is connected to the side of the lower slider via a hinge shaft, and a locking block is connected to the inner side of the pressure rod. The locking block is movably inserted into the locking groove, and a protrusion is provided at the bottom of the locking block. A corresponding recessed structure is also provided at the bottom of the inner side of the locking groove. At the same time, the combination of spring and air pressure inside the protrusion and groove can improve the stability of the connection between the locking block and the locking groove, thereby ensuring the stability of the lower slider position and improving the stability of the device during use.

[0010] Furthermore, the support plate is rotatably sleeved on both sides of the bottom of the telescopic support assembly, and a circular hole is opened at the end of the support plate near the telescopic support assembly, the axis of which is collinear with the axis of the piston cylinder.

[0011] Furthermore, the piston cylinders are symmetrically arranged on both sides of the telescopic support assembly, and the piston cylinders are located above the support plate. The piston cylinders have a sealed internal structure, and a piston rod is inserted inside the piston cylinders. The piston cylinders are connected to the connecting hose. When the filling block is compressed, the air pressure inside the piston cylinder increases, and the piston rod extends and inserts into the round hole on the support plate. At this time, the position of the support plate is fixed, and the stability of the device can be improved by the support plate.

[0012] Furthermore, casters are installed on the outer side of the telescopic support assembly. The casters are located at the upper and lower ends of the telescopic support assembly, and the casters have a self-locking structure. Shock-absorbing components are configured at the connection points of the casters.

[0013] The present invention has the following beneficial effects: 1. By making the support legs of the device movable, the position of the support legs can be adjusted according to actual needs, thereby adapting it to the cleaning requirements of vertical or horizontal chemical storage tanks, thus improving its adaptability. At the same time, with the help of movable brushes, the bottom space can also be cleaned, improving the working efficiency of the device.

[0014] 2. By combining the sliding block and the corresponding air chamber, this invention can ensure the stability of the device during operation while fixing the position of the outrigger. It can also switch between the movement and fixation modes of the outrigger as a whole, which is convenient for manual operation. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the invention; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 This is a partial cross-sectional structural diagram of the telescopic support component in this invention; Figure 6 This is a partial structural schematic diagram of the telescopic support component in this invention; Figure 7 For the present invention Figure 6 A magnified structural diagram at point B in the middle.

[0016] In the diagram: 1. Cleaning assembly; 2. Annular frame; 21. Sliding groove; 211. Slot; 22. Upper sliding groove; 3. Telescopic support assembly; 31. Slot; 32. Upper slider; 33. Limiting groove; 34. Support leg; 4. Pressure rod; 41. Locking block; 5. Lower slider; 51. Protrusion; 511. Filling block; 52. Connecting hose; 6. Piston cylinder; 61. Piston rod; 7. Support plate; 8. Cleaning brush; 81. Connecting rod; 9. Caster wheel. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1An automatic cleaning device for chemical storage tanks includes a cleaning component 1 and a control system. The cleaning component 1 is externally mounted on an annular frame 2. The cleaning component 1 consists of a drive assembly and a screw, and is installed in the center of the annular frame 2. The screw is coaxial with the annular frame 2, and a nozzle is located at the bottom of the screw. The nozzle is connected to an external water pipe. The control system controls a motor to drive the screw to rotate, allowing high-pressure water to be sprayed from the nozzle and applied to the inside of the chemical storage tank to achieve the cleaning function. Specific component models can use existing models that achieve the corresponding effect and are not limited here. The nozzle is mounted on the outside of... Equipped with a cleaning brush 8, which is movably connected to the nozzle via a torsion spring shaft, the cleaning brush 8 is tilted downwards in its natural state. The cleaning brush 8 has a segmented structure, with a connecting rod 81 at the top. Both ends of the connecting rod 81 are connected via a torsion spring shaft. The bottom of the cleaning brush 8 is an arc-shaped brush, which curves towards the center of the device, allowing it to easily enter the storage tank and adapt to storage tanks of different inner diameters. With the cooperation of the connecting rod 81, it can also clean the bottom of the storage tank, improving the cleaning efficiency and work quality of the device.

[0019] Please see Figure 2 Telescopic support components 3 are symmetrically installed on both sides of the annular frame 2. A lower slider 5 is inserted into the lower part of the annular frame 2. A pressure rod 4 is provided on the side of the lower slider 5, and one end of the pressure rod 4 is movably inserted into the side of the telescopic support component 3. A support plate 7 is symmetrically connected to the bottom end of the telescopic support component 3. A piston cylinder 6 is installed on the telescopic support component 3 on the side of the support plate 7 near the telescopic support component 3, and the piston cylinder 6 is connected to the inside of the lower slider 5 through a connecting hose 52.

[0020] Please see Figure 4 The top of the annular frame 2 has an upper sliding groove 22, which is located on the outer edge of the annular frame 2. The bottom of the annular frame 2 has a lower sliding groove 21, which is symmetrical to the upper sliding groove 22. The top of the lower sliding groove 21 has a slot 211. There are four slots 211, which are evenly distributed on one side of the semicircle of the annular frame 2. The telescopic support assembly 3 can be fixed in the position of the corresponding slot 211 by the cooperation of the pressure rod 4 and the lower sliding block 5, so that the device can meet the needs of upright or horizontal use; see reference Figure 5 , Figure 5The telescopic support assembly 3 is an electrically telescopic structure, or it can be hydraulically driven, and it is controlled by a control system. The top of the telescopic support assembly 3 is connected to an upper slider 32, which is movably inserted into an upper sliding groove 22. The upper slider 32 is provided with ball bearings at the contact position with the upper sliding groove 22 to reduce friction and facilitate manual operation. The bottom of the telescopic support assembly 3 is provided with several ball bearings to facilitate the movement of the device. The bottom of the telescopic support assembly 3 is equipped with a support leg 34, which is controlled by the control system. The telescopic range of the support leg 34 is greater than the diameter of the ball bearings installed at the bottom of the telescopic support assembly 3. The support leg 34 can be hydraulically telescopic or electrically telescopic. By controlling the telescopic range of the support leg 34, the stability of the telescopic support assembly 3 can be ensured, and its position and other operations can be facilitated. The side of the telescopic support assembly 3 located on the bottom surface of the annular frame 2 has a slot 31 for cooperating with the pressure rod 4 to fix the position of the lower slider 5. The inner side of the telescopic support assembly 3 that contacts the annular frame 2 has a vertical limiting groove 33.

[0021] Please see Figure 3 The top of the lower slider 5 is movably inserted into the lower slide groove 21, and the outer side of the lower slider 5 is inserted into the limiting groove 33. The portion of the lower slider 5 inserted into the lower slide groove 21 has a protrusion 51. The top of the protrusion 51 protrudes from the top surface of the lower slider 5, and the structure of the protruding part at the top of the protrusion 51 can be inserted into the slot 211. In its natural state, the thickness of the protrusion 51 and the filling block 511 protruding from the top of the lower slider 5 is greater than the depth of the slot 211, so that after the protrusion 51 is inserted into the slot 211, the filling block 511 can be contracted by external pressure. The filling block 511 is provided inside the protrusion 51, and the filling block 511 is sealed to the protrusion 51. The periphery and top surface of the filling block 511 are made of hard plate material, and the bottom edge of the filling block 511 is... The soft material is sealed to the inside of the groove 51, and the inside of the filling block 511 is connected to the groove 51 through a telescopic spring. When there is no external force interference, the height of the part of the sliding block 5 inside the sliding groove 21 is less than the height of the inside of the sliding groove 21. When the sliding block 5 moves up and the groove 51 is inserted into the slot 211, the filling block 511 is compressed by the pressure of the inner wall of the slot 211. At the same time, the pressure rod 4 and the slot 31 are on the same horizontal plane, and the inner cavity of the filling block 511 is connected to a connecting hose 52 extending to the outside. The connecting hose 52 is made of soft material and has no extensibility. The length of the connecting hose 52 is adapted to the telescopic support assembly 3, so that the connecting hose 52 and the telescopic support assembly 3 will not affect each other.

[0022] Please see Figure 6-7The pressure rod 4 is connected to the side of the lower slider 5 via a hinge shaft, and a locking block 41 is connected to the inner side of the pressure rod 4. The locking block 41 is movably inserted into the locking groove 31, and a protrusion is provided at the bottom of the locking block 41. A corresponding recessed structure is also provided at the bottom of the inner side of the locking groove 31. At the same time, the combination of spring and air pressure inside the protrusion 51 can improve the stability of the connection between the locking block 41 and the locking groove 31, thereby ensuring the stability of the lower slider 5 in position fixation and improving the stability of the device during use. See reference. Figure 5 The support plate 7 is rotatably sleeved on both sides of the bottom of the telescopic support assembly 3. A circular hole is opened at the end of the support plate 7 near the telescopic support assembly 3, and the axis of the circular hole is collinear with the axis of the piston cylinder 6. The piston cylinder 6 is symmetrically arranged on both sides of the telescopic support assembly 3 and is located above the support plate 7. The piston cylinder 6 has a sealed internal structure, and a piston rod 61 is inserted inside the piston cylinder 6. The piston cylinder 6 is connected to the connecting hose 52. When the filling block 511 is compressed, the air pressure inside the piston cylinder 6 increases, and the piston rod 61 extends and inserts into the circular hole on the support plate 7. At this point, the position of the support plate 7 is fixed, which improves the stability of the device. Universal wheels 9 are installed on the outside of the telescopic support assembly 3. The universal wheels 9 are located at the upper and lower ends of the telescopic support assembly 3. The universal wheels 9 have a self-locking structure, which can ensure the stability of the device when it is laid horizontally, and also facilitate its movement. The connection position of the universal wheels 9 is equipped with shock-absorbing components to reduce the impact of vibration when it is laid down. In addition, the connecting shaft of the support plate 7 is a certain distance from the ground, so that the movement of the piston cylinder 6 will not be affected when the support plate 7 is retracted.

[0023] The working principle of the method of use of this invention is as follows: Move the device to the working area, connect the power supply and other lines, control the extension of the support leg 34 and lift the bottom ball bearing of the telescopic support assembly 3 off the ground, put down the support plates 7 respectively, with the bottom of the support plates 7 contacting the bottom surface, and then move the telescopic support assembly 3 to a position symmetrical to the center of the annular frame 2, so that the protrusion 51 corresponds to the position of the slot 211 respectively, move the lower slider 5 up and insert the protrusion 51 into the slot 211, continue to move the lower slider 5, and finally the filling block 511 is compressed by the pressure of the inner wall of the slot 211. At this time, the locking block 41 and the locking slot 31 are on the same horizontal plane, deflect the pressure rod 4 and insert the locking block 41 into the locking slot 31. After fixing the position of the sliding block 5, the spring and gas inside the groove 51 create mutual pressure between the slot 211 and the filling block 511, causing the protrusion at the bottom of the locking block 41 to engage in the groove within the slot 31. The increased internal gas pressure after the filling block 511 contracts also increases the internal gas pressure of the piston cylinder 6, causing the piston rod 61 to extend and insert into the corresponding position on the support plate 7, thus fixing the position of the support plate 7. After securing the telescopic support assembly 3, the cleaning work of the chemical storage tank can begin. The control system controls the drive motor to drive the cleaning assembly 1, which rotates and gradually moves downwards. Once the nozzle enters the storage tank, it begins to spray high-pressure water to perform the cleaning work, simultaneously cleaning... The cleaning brush 8 enters the storage tank and deflects accordingly to the inner diameter of the tank. Simultaneously, the cleaning brush 8 cleans the inner wall of the tank as the cleaning assembly 1 rotates. When the nozzle reaches the bottom of the tank, the cleaning brush 8 is deflected inwards by the pressure from the bottom, thus cleaning the bottom of the tank. Then, the screw of the cleaning assembly 1 rotates in the opposite direction and controls the nozzle to move upwards, completing the cleaning of the chemical storage tank. When cleaning a horizontal chemical storage tank, the telescopic support assembly 3 shortens to its minimum length, and the support leg 34 retracts. At this time, the bottom ball bearing of the telescopic support assembly 3 contacts the ground, while the upper and lower slider 5 is pressed down, and the pressure rod 4 is deflected out of the slot 31. The filling block 511 expands under the action of the spring and returns to its initial state. The piston rod 61 retracts, at which point the support plate 7 can be deflected upwards and retracted, causing the lower slider 5 to move along the lower slide groove 21 to the position of the adjacent slot 211. Then, the lower slider 5 is moved upwards and the locking block 41 is engaged in the slot 31 to fix the lower slider 5. The above operation is repeated to move the other slot 31 to the corresponding position, and then the device can be laid down. In addition, this process can be achieved with the help of existing external tools, such as a support frame to prevent the device from tipping over, or with the assistance of a lifting device, so that the caster wheel 9 can support the entire device. During the cleaning work, the telescopic support assembly 3 is extended to a suitable length, and then the caster wheel 9 is fixed, and the cleaning work can be carried out as described above.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for chemical storage tanks, comprising a cleaning assembly (1) and a control system, characterized in that: The cleaning assembly (1) is provided with an annular frame (2) on the outside. Telescopic support assemblies (3) are symmetrically installed on both sides of the annular frame (2). A sliding block (5) is inserted into the bottom of the annular frame (2). A pressure rod (4) is provided on the side of the sliding block (5), and one end of the pressure rod (4) is movably inserted into the side of the telescopic support assembly (3). A support plate (7) is symmetrically connected to the bottom of the telescopic support assembly (3). A piston cylinder (6) is installed on the side of the support plate (7) near the telescopic support assembly (3), and the piston cylinder (6) is connected to the inside of the sliding block (5) through a hose.

2. The automatic cleaning device for chemical storage tanks according to claim 1, characterized in that: The cleaning assembly (1) consists of a drive assembly and a screw, which is installed in the middle of the annular frame (2). The screw is coaxial with the annular frame (2). The bottom end of the screw is a nozzle, which is connected to an external water pipe. A cleaning brush (8) is installed on the outside of the nozzle. The cleaning brush (8) is movably connected to the nozzle through a torsion spring shaft. In its natural state, the cleaning brush (8) is tilted downwards. The cleaning brush (8) has a segmented structure. Its upper part is a connecting rod (81). Both ends of the connecting rod (81) are connected through a torsion spring shaft. The bottom of the cleaning brush (8) is an arc-shaped brush, and its arc bends toward the center of the device.

3. The automatic cleaning device for chemical storage tanks according to claim 1, characterized in that: The top of the annular frame (2) is provided with an upper sliding groove (22), which is located on the outer edge of the annular frame (2). The bottom of the annular frame (2) is provided with a lower sliding groove (21) that is symmetrical to the upper sliding groove (22). The top of the lower sliding groove (21) is provided with a slot (211). There are four slots (211) and they are evenly distributed on one side of the semicircle of the annular frame (2).

4. The automatic cleaning device for chemical storage tanks according to claim 3, characterized in that: The telescopic support assembly (3) is an electrically telescopic structure and is controlled by a control system. The top of the telescopic support assembly (3) is connected to an upper slider (32), and the upper slider (32) is movably inserted into the upper sliding groove (22). A ball bearing is provided at the position where the upper slider (32) contacts the upper sliding groove (22). Several balls bearings are provided at the bottom of the telescopic support assembly (3), and a support leg (34) is installed at the bottom of the telescopic support assembly (3). The support leg (34) is controlled by the control system, and the difference in the telescopic range of the support leg (34) is greater than the diameter of the ball bearings installed at the bottom of the telescopic support assembly (3). A slot (31) is provided on the side of the telescopic support assembly (3) at the position of the bottom surface of the annular frame (2), and a vertical limiting groove (33) is provided on the inner side of the telescopic support assembly (3) that contacts the annular frame (2).

5. The automatic cleaning device for chemical storage tanks according to claim 4, characterized in that: The top end of the sliding block (5) is movably inserted into the sliding groove (21), and the outer side of the sliding block (5) is inserted into the limiting groove (33). The part of the sliding block (5) inserted into the sliding groove (21) has a protrusion (51). A filling block (511) is provided inside the protrusion (51). The filling block (511) is sealed to the protrusion (51), and the filling block (511) is connected to the protrusion (51) through a telescopic spring. When there is no external force interference to the filling block (511), the sliding block (5) is located inside the sliding groove (21). The height of the body is less than the height of the inside of the sliding groove (21). When the slider (5) moves up and the protrusion (51) is inserted into the slot (211), the filling block (511) is compressed by the pressure of the inner wall of the slot (211). At the same time, the pressure rod (4) and the slot (31) are on the same horizontal plane. The inner cavity of the filling block (511) is connected to a connecting hose (52) extending to the outside. The connecting hose (52) is made of soft material and has no extensibility. The length of the connecting hose (52) is adapted to the telescopic support assembly (3) telescopic range.

6. The automatic cleaning device for chemical storage tanks according to claim 4, characterized in that: The pressure rod (4) is connected to the side of the lower slider (5) via a hinge shaft, and a locking block (41) is connected to the inner side of the pressure rod (4), which is movably inserted into the slot (31).

7. The automatic cleaning device for chemical storage tanks according to claim 5, characterized in that: The support plate (7) is rotatably sleeved on both sides of the bottom of the telescopic support assembly (3), and a round hole is opened at the end of the support plate (7) near the telescopic support assembly (3) where the rotation center is located.

8. The automatic cleaning device for chemical storage tanks according to claim 7, characterized in that: The piston cylinder (6) is symmetrically arranged on both sides of the telescopic support assembly (3), and the piston cylinder (6) is located above the support plate (7). The piston cylinder (6) has a sealed structure inside, and a piston rod (61) is inserted inside the piston cylinder (6). The piston cylinder (6) is connected to the connecting hose (52). When the filling block (511) is pressed, the air pressure inside the piston cylinder (6) increases and the piston rod (61) extends out and inserts into the round hole on the support plate (7).

9. The automatic cleaning device for chemical storage tanks according to claim 1, characterized in that: The telescopic support assembly (3) is equipped with casters (9) on its outer side, and the casters (9) are located at the upper and lower ends of the telescopic support assembly (3).

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