Cleaning device for medicine transdermal tester
By designing a cleaning device that includes a cleaning tank and a water tank, a mechanical transmission system is used to achieve all-round cleaning of the diffusion box of the transdermal drug testing instrument. Combined with a filtration mechanism, the problem of incomplete cleaning in the existing technology is solved, and the cleaning effect and service life of the instrument are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JINCHUANGZHIKE TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-01
AI Technical Summary
The existing cleaning devices of transdermal drug testing instruments cannot fully cover all corners of the outer and inner walls of the diffusion chamber, resulting in incomplete cleaning, which affects the accuracy of experimental results and the lifespan of the instrument.
A cleaning device including a cleaning tank and a water tank was designed. A mechanical transmission system is used to rotate the spray pipe to the top of the diffuser box, and the spray ring and spray pipe achieve all-round cleaning. Combined with a filtration mechanism, the cleaning liquid is filtered to ensure the cleaning effect.
This technology enables comprehensive cleaning of the diffusion chamber, both inside and out, improving the cleaning effect and ensuring the accuracy of experimental results and the lifespan of the instrument.
Smart Images

Figure CN224181500U_ABST
Abstract
Description
A cleaning device for a drug transdermal testing instrument Technical Field
[0001] This utility model relates to the technical field of auxiliary equipment for drug transdermal testing instruments, and in particular to a cleaning device for drug transdermal testing instruments. Background Technology
[0002] Transdermal drug transdermal testing instruments are widely used in pharmaceutical research and development and dermatological research to assess the ability of drugs to penetrate the skin. After using the transdermal drug transdermal testing instrument for experiments, drug and other impurities may remain in the diffusion cell. If not cleaned in a timely and thorough manner, the residual substances may affect the accuracy of subsequent experimental results and lead to experimental data deviations. Moreover, long-term residual substances may corrode instrument components and shorten the instrument's service life.
[0003] Currently, cleaning transdermal drug testing instruments mainly relies on manual operation, using brushes and cleaning agents. Since residual drugs and impurities in the diffusion chamber are corrosive to the human body, protective gloves and goggles must be worn before manual cleaning, making the process cumbersome. Existing technology has been improved by adopting a press-type flushing head cleaning method. Specifically, the diffusion chamber is placed with its opening facing down on the press-type flushing head. Pressing down on the diffusion chamber triggers the flushing head to spray cleaning fluid, cleaning the inner wall of the diffusion chamber. However, in actual use, this improved method still reveals problems. Because drugs may remain on the outer wall of the diffusion chamber during the experiment, the press-type flushing head design can only clean a localized area of the inner wall of the diffusion chamber, failing to fully cover the outer wall and all corners of the inner wall. Summary of the Invention
[0004] To overcome the above shortcomings, this utility model provides a cleaning device for a transdermal drug testing instrument, which aims to improve the problem that the existing technology using a press-to-rinse head can only rinse a local area of the inner wall of the diffusion box, and cannot fully cover the outer wall and all corners of the inner wall of the diffusion box.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cleaning device for a transdermal drug testing instrument, comprising a cleaning tank and a water tank, wherein a drain pipe is connected to the top rear side of the water tank, the rear end of the drain pipe is connected to the cleaning tank, a water pump is connected to the right side of the outer wall of the water tank, and a delivery pipe is connected to the output end of the water pump, a hollow tube is fixedly connected to the bottom of the inner wall of the cleaning tank, a vertical rod is slidably connected to the inner wall of the hollow tube, a spring is fixedly connected to the bottom of the vertical rod, connecting rods are rotatably connected to the left and right sides of the inner wall of the cleaning tank, and teeth are fixedly connected to the outer walls of the two connecting rods. The wheel has toothed plates fixedly connected to both the left and right sides of the outer wall of the upright. The two toothed plates are respectively meshed with the corresponding gears. The outer walls of the two gears are fixedly connected to the opposite sides. The rear end of the conveying pipe passes through the cleaning tank and is connected to a spray ring. The rear side of the outer wall of the spray ring is connected to two hoses. The opposite sides of the two connecting plates are fixedly connected to multiple spray pipes. The bottom ends of the multiple spray pipes are respectively connected to the corresponding hoses. The top of the cleaning tank is provided with a sealing assembly. The inner wall of the water tank is provided with a filter mechanism for filtering the cleaning liquid.
[0006] As a further description of the above technical solution:
[0007] The filtration mechanism includes a filter frame, the outer wall of which is slidably connected to the inner wall of the water tank. Slide grooves are provided on both the left and right sides of the outer wall of the filter frame. A locking block is slidably connected to the inner wall of each of the two slide grooves. Two springs are fixedly connected to adjacent sides of each of the two locking blocks, and each spring is fixedly connected to its corresponding slide groove. A pull rod is fixedly connected to adjacent sides of each of the two locking blocks, and one adjacent end of each pull rod passes through the filter frame. Slots are provided on both the left and right sides of the inner wall of the water tank, and each locking block engages with its corresponding slot.
[0008] As a further description of the above technical solution:
[0009] The sealing assembly includes a cover plate, which is rotatably connected to the top rear side of the cleaning tank. Multiple pressure rods are fixedly connected to the bottom of the cover plate. Two hooks are fixedly connected to the front side of the outer wall of the cover plate, and two latches are fixedly connected to the front side of the outer wall of the cleaning tank. The two latches are respectively engaged with the corresponding hooks.
[0010] As a further description of the above technical solution:
[0011] An observation frame is fixedly connected to the right side of the outer wall of the cleaning tank, and a transparent plate is fixedly connected to the inner wall of the observation frame.
[0012] As a further description of the above technical solution:
[0013] An information board is provided on the top of the cover plate, and screws are threaded to the four corners of the outer wall of the information board. The bottom of each screw is threaded to the cover plate.
[0014] As a further description of the above technical solution:
[0015] A handle is fixedly connected to the top front side of the cover plate, and the surface of the handle is treated with anti-slip material.
[0016] As a further description of the above technical solution:
[0017] A support base is fixedly connected to the right side of the outer wall of the water tank, and the top of the support base is attached to the bottom of the water pump.
[0018] As a further description of the above technical solution:
[0019] The bottom left and right sides of the cleaning tank are fixedly connected to mounting plates, and bolts are threaded to the four corners of the bottom of the two mounting plates.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, when the cover is closed, the pressure rod squeezes the diffuser box, driving the upright to move. Through the toothed plate and gear transmission, the spray pipe rotates to the top of the diffuser box with the spray nozzle facing downward. At the same time, the water pump, drain pipe, delivery pipe, spray ring and hose work together to deliver the cleaning liquid to each spray pipe. In conjunction with the bottom spray ring, it achieves all-round cleaning of the inside and outside of the diffuser box, which improves the problem of incomplete cleaning by pressing the flushing head in the prior art and greatly improves the cleaning effect.
[0022] 2. In this utility model, the cleaning fluid in the cleaning tank flows into the water tank through the drain pipe for circulation. During the process, the filter frame filters impurities in the cleaning fluid to prevent impurities from affecting the spray system and ensure the cleaning effect. When the filter frame needs to be maintained, the pull rod is pulled to disengage the locking block from the slot, and the filter frame can be removed. After maintenance, it is put back, and the locking block is locked back into the slot under the action of the second spring. This design takes into account both filtration effectiveness and maintenance convenience, and optimizes the cleaning fluid circulation filtration process. Attached Figure Description
[0023] Figure 1 is a perspective view of a cleaning device for a transdermal drug testing instrument proposed in this utility model;
[0024] Figure 2 is a front view of a cleaning device for a transdermal drug testing instrument proposed in this utility model;
[0025] Figure 3 is a partial structural schematic diagram of a cleaning device for a transdermal drug testing instrument proposed in this utility model;
[0026] Figure 4 is a partial structural breakdown diagram of a cleaning device for a transdermal drug testing instrument proposed in this utility model.
[0027] Figure 5 is a schematic diagram of the cover plate of a cleaning device for a transdermal drug testing instrument proposed in this utility model;
[0028] Figure 6 is a schematic diagram of the filtration mechanism of a cleaning device for a transdermal drug testing instrument proposed in this utility model.
[0029] Legend:
[0030] 1. Cleaning tank; 2. Filtration mechanism; 201. Filter frame; 202. Slide groove; 203. Locking block; 204. Spring II; 205. Pull rod; 206. Slot; 3. Water tank; 4. Drain pipe; 5. Water pump; 6. Delivery pipe; 7. Hollow pipe; 8. Upright pole; 9. Spring I; 10. Connecting rod; 11. Gear; 12. Tooth plate; 13. Connecting plate; 14. Spray ring; 15. Hose; 16. Spray pipe; 17. Cover plate; 18. Pressure rod; 19. Hook; 20. Buckle; 21. Observation frame; 22. Transparent plate; 23. Information board; 24. Screw; 25. Handle; 26. Support base; 27. Mounting plate; 28. Bolt. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Referring to Figures 1, 3, and 4, one embodiment of this utility model provides a cleaning device for a transdermal drug testing instrument, comprising a cleaning tank 1 and a water tank 3. The cleaning tank 1 serves as the main cleaning area, containing the transdermal drug testing instrument components to be cleaned. The water tank 3 stores the cleaning solution, providing a liquid source for the cleaning process. A drain pipe 4 is connected to the top rear side of the water tank 3, guiding the cleaning solution from the cleaning tank 1 to the water tank 3 for circulation. The rear end of the drain pipe 4 is connected to the cleaning tank 1. A water pump 5 is connected to the right side of the outer wall of the water tank 3, providing power for the flow of the cleaning solution and facilitating its transport from the water tank 3 to other components. The output end of the water pump 5 is connected to a delivery pipe 6, transporting the cleaning solution output by the water pump 5 to a designated location. A hollow tube 7 is fixedly connected to the bottom of the inner wall of the cleaning tank 1, providing sliding space for the upright rod 8. The upright rod 8 is slidably connected to the inner wall of the hollow tube 7. During the cleaning process, the upright rod 8 supports the parts to be cleaned and triggers related cleaning actions. A spring 9 is fixedly connected to the bottom of the upright rod 8, providing elasticity so that the upright rod 8 can be held in a certain position when no external force is applied, and can return to its original position after being subjected to force. Connecting rods 10 are rotatably connected to the left and right sides of the inner wall of the cleaning tank 1, which are used to connect gears 11, so that the gears 11 can rotate on the inner wall of the cleaning tank 1. Gears 11 are fixedly connected to the outer walls of the two connecting rods 10, which cooperate with the toothed plates 12 to realize the transmission of force and the conversion of motion. Toothed plates 12 are fixedly connected to the left and right sides of the outer walls of the upright rod 8, and two toothed plates 12 are fixedly connected to the outer walls of the upright rod 8. Plate 12 meshes with corresponding gear 11. When the upright 8 moves up and down, the gear 11 rotates via the gear plate 12. Connecting plates 13 are fixedly connected to the outer walls of the two gears 11 on opposite sides, for connecting spray pipes 16. As the gears 11 rotate, the spray pipes 16 rotate. The rear end of the conveying pipe 6 passes through the cleaning tank 1 and is connected to a spray ring 14, which evenly distributes the cleaning liquid from the conveying pipe 6 and sprays it in all directions. Two flexible hoses 15 are connected to the rear side of the outer wall of the spray ring 14. Multiple spray pipes 16 are fixedly connected to the opposite sides of the two connecting plates 13. During rotation, the spray pipes 16 spray and clean the components inside the cleaning tank 1 from different angles, enhancing the cleaning efficiency. As a result, the bottom ends of multiple spray pipes 16 are respectively connected to corresponding hoses 15. A sealing assembly is provided on the top of the cleaning tank 1, and a filter mechanism 2 is provided on the inner wall of the water tank 3. The filter mechanism 2 is used to filter the cleaning liquid. The sealing assembly includes a cover plate 17, which is rotatably connected to the rear side of the top of the cleaning tank 1 to realize the opening and closing of the cleaning tank 1. The cover plate 17 is rotatably connected to the rear side of the top of the cleaning tank 1. Multiple pressure rods 18 are fixedly connected to the bottom of the cover plate 17. When the cover plate 17 is closed, it presses down on the part to be cleaned, triggering the movement of the upright rod 8, thereby starting a series of cleaning actions. Two hooks 19 are fixedly connected to the front side of the outer wall of the cover plate 17, and two latches 20 are fixedly connected to the front side of the outer wall of the cleaning tank 1. The two latches 20 are respectively engaged with the corresponding hooks 19.
[0033] Specifically, the cleaning tank 1 and the water tank 3 work together. The top rear side of the water tank 3 is connected to the cleaning tank 1 via a drain pipe 4 for drainage. The water pump 5 on the right side of the outer wall of the water tank 3 delivers the cleaning liquid in the water tank 3 to the spray ring 14 inside the cleaning tank 1 via a delivery pipe 6. The hollow tube 7 at the bottom of the inner wall of the cleaning tank 1 is slidably connected to the upright rod 8. The bottom of the upright rod 8 is connected to a spring 9, forming a structure that can move up and down. The connecting rod 10, which is rotatably connected to the left and right sides of the inner wall of the cleaning tank 1, has a gear 11 fixed on its outer wall that meshes with the toothed plates 12 on the left and right sides of the outer wall of the upright rod 8, causing the upright rod 8 to move and drive the cleaning tank 10. Gear 11 rotates, and a connecting plate 13 fixed to the side away from the outer wall of gear 11 connects to multiple spray pipes 16. Spray ring 14 is connected to spray pipes 16 through two hoses 15 to achieve multi-angle spray cleaning. The sealing assembly at the top of the cleaning tank 1 is composed of a cover plate 17 rotatably connected to the rear side of the top. When the cover plate 17 is closed, the pressure rod 18 at the bottom of the cover plate 17 squeezes the diffuser box and drives the upright rod 8 to move. The hook 19 on the front side of its outer wall engages with the buckle 20 on the front side of the outer wall of the cleaning tank 1 to achieve a seal. The filter mechanism 2 on the inner wall of the water tank 3 filters the cleaning liquid to ensure the cleaning effect.
[0034] Referring to Figure 6, the filter mechanism 2 includes a filter frame 201, which serves as the core component for filtering the cleaning fluid. It carries the filter media and filters the cleaning fluid in the water tank 3. The outer wall of the filter frame 201 is slidably connected to the inner wall of the water tank 3. Slide grooves 202 are provided on both the left and right sides of the outer wall of the filter frame 201, providing sliding tracks for the locking blocks 203, ensuring that the locking blocks 203 can move in a specified direction. Locking blocks 203 are slidably connected to the inner walls of both slide grooves 202, sliding within the slide grooves 202 to cooperate with the locking grooves 206 on the inner wall of the water tank 3 to fix the filter frame 201. The adjacent sides of the two locking blocks 203 are fixedly connected... Two springs 204 provide elastic force to the locking block 203, causing it to tend to move towards the locking groove 206, so as to maintain the locking block 203 and the locking groove 206 in the locked state. The two springs 204 are fixedly connected to the corresponding sliding grooves 202 respectively. A pull rod 205 is fixedly connected to the adjacent side of the two locking blocks 203, which facilitates the operator to operate the locking block 203. The movement of the locking block 203 can be controlled by pulling the pull rod 205. The adjacent ends of the two pull rods 205 pass through the filter frame 201. The inner wall of the water tank 3 has a locking groove 206 on both the left and right sides, and the two locking blocks 203 are respectively locked with the corresponding locking groove 206.
[0035] Specifically, the outer wall of the filter frame 201 is slidably connected to the inner wall of the water tank 3, allowing for easy installation and removal of the filter frame 201. Sliding blocks 203 are connected to the sliding grooves 202 on the left and right sides of the outer wall of the filter frame 201, respectively. Two springs 204 are connected to each adjacent side of the locking block 203, with the other end of each spring fixed within the sliding groove 202. Their elasticity causes the locking block 203 to tend to move towards the locking slot 206. A pull rod 205 is also connected to the adjacent side of the locking block 203, and the pull rod 205 passes through the filter frame 201, allowing water to pass through. The inner wall of the tank 3 has slots 206 on the left and right sides. When the filter frame 201 is placed in the water tank 3, the locking block 203 is locked into the slot 206 under the action of the second spring 204, which firmly fixes the filter frame 201 and ensures that it does not shake during filtration. When the filter frame 201 needs to be removed for cleaning or replacement, pull the lever 205 to overcome the elastic force of the second spring 204 and make the locking block 203 disengage from the slot 206, so that the filter frame 201 can be easily removed. The whole system works together to achieve effective filtration of the cleaning liquid in the water tank 3 and convenient maintenance of the filter frame 201.
[0036] Referring to Figures 1, 2, and 5, an observation frame 21 is fixedly connected to the right side of the outer wall of the cleaning tank 1. A transparent plate 22 is fixedly connected to the inner wall of the observation frame 21. The transparent plate 22 inside the observation frame 21 allows the operator to directly observe the cleaning status of the diffusion box inside the cleaning tank 1 without opening the cover 17, and to understand the cleaning progress and effect in a timely manner. An information board 23 is set on the top of the cover 17 to record cleaning-related information. Screws 24 are threadedly connected to the four corners of the outer wall of the information board 23, and the bottom of the multiple screws 24 are threadedly connected to the cover 17.
[0037] Specifically, the transparent plate 22 inside the observation frame 21 allows operators to directly observe the cleaning status of the diffusion box inside the cleaning chamber 1 without opening the cover plate 17, and to understand the cleaning progress and effect in a timely manner. The information plate 23 is fixed by screws 24 connected by four corner threads and can be used to record cleaning-related information, making it convenient for operators to view and trace, and ensuring that the cleaning process is standardized and orderly.
[0038] Referring to Figures 1, 3, and 4, a handle 25 is fixedly connected to the top front side of the cover plate 17. The surface of the handle 25 is treated with anti-slip material to facilitate the operator's grip and allow for easy opening or closing of the cover plate 17. A support base 26 is fixedly connected to the right side of the outer wall of the water tank 3 to provide stable support for the water pump 5 and ensure the stability of the water pump 5 during operation. The top of the support base 26 fits against the bottom of the water pump 5. Mounting plates 27 are fixedly connected to the left and right sides of the bottom of the cleaning tank 1. Bolts 28 are threaded at the four corners of the bottom of the two mounting plates 27 to fix the cleaning device in the designated position and prevent the device from shaking during operation.
[0039] Specifically, the handle 25 on the front top of the cover plate 17 is treated with anti-slip material, making it easy for operators to grip and open or close the cover plate 17 easily, improving operational convenience and safety. The support base 26 on the right side of the outer wall of the water tank 3 has its top attached to the bottom of the water pump 5, providing stable support for the water pump 5, ensuring the stability of the water pump 5 during operation, and ensuring smooth delivery of cleaning fluid. The mounting plates 27 on the left and right sides of the bottom of the cleaning tank 1 can be fixed in a designated position by bolts 28 connected by four corner threads to prevent the device from shaking during operation.
[0040] Working principle: When using this device, first open the cover plate 17 and place the diffuser box with the opening facing down on the upright 8. Then, use the hook 19 and latch 20 to close the cover plate 17. During the closing process, multiple pressure rods 18 will move downward with the cover plate 17, thereby squeezing the diffuser box. After the diffuser box is squeezed, it will drive the upright 8 to move downward. The upright 8 is connected to the spring 9, which plays a buffering and restoring role. When the upright 8 moves downward, it will drive the toothed plates 12 on both sides to move downward synchronously. Since the toothed plates 12 are meshed with the gears 11, the movement of the toothed plates 12 will drive the gears 11 to rotate. At the same time as the gears 11 rotate, the connection fixed to its outer wall will be... The plate 13 and the spray pipe 16 also rotate. Through such mechanical transmission, multiple spray pipes 16 can rotate to the top of the diffusion box, and the spray nozzles of multiple spray pipes 16 face downwards. At the same time, the top of the rear side of the water tank 3 is connected to the cleaning tank 1 through the drain pipe 4. The water pump 5 on the right side of the outer wall of the water tank 3 delivers the cleaning liquid in the water tank 3 to the spray ring 14 in the cleaning tank 1 through the delivery pipe 6. The spray ring 14 is connected to multiple spray pipes 16 through two hoses 15, thereby ensuring that the cleaning liquid can reach each spray pipe 16 smoothly. The spray ring 14 with the bottom spray nozzle facing upwards and the spray pipe 16 with the top spray nozzle facing downwards cooperate with each other to achieve all-round cleaning of the inside and outside of the diffusion box.
[0041] Furthermore, the cleaning solution in the cleaning tank 1 will flow into the water tank 3 through the drain pipe 4 for circulation. During the circulation of the cleaning solution, the cleaning solution in the water tank 3 will flow through the filter frame 201. The filter frame 201 filters the impurities in the cleaning solution to prevent the impurities from re-entering the spray system with the cleaning solution, affecting the cleaning effect or clogging the pipes. When the filter frame 201 needs to be cleaned or replaced after a period of use, the operator only needs to pull the lever 205. The lever 205 drives the locking block 203 to overcome the elasticity of the second spring 204 and slide in the slide groove 202, so that the locking block 203 disengages from the slot 206. At this time, the filter frame 201 can be easily removed from the water tank 3 for the corresponding maintenance operation. After the maintenance is completed, the filter frame 201 is put back into the water tank 3. The locking block 203 is locked back into the slot 206 under the action of the second spring 204, and the filter mechanism 2 can work normally again. The whole design ensures the effectiveness of filtration and takes into account the convenience of maintenance.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cleaning device for a transdermal drug testing instrument, comprising a cleaning tank (1) and a water tank (3), characterized in that: The water tank (3) is connected to the top rear side of a drain pipe (4), the rear end of which is connected to the cleaning tank (1). A water pump (5) is connected to the right side of the outer wall of the water tank (3), and the output end of the water pump (5) is connected to a delivery pipe (6). A hollow tube (7) is fixedly connected to the bottom of the inner wall of the cleaning tank (1), and a vertical rod (8) is slidably connected to the inner wall of the hollow tube (7). A spring (9) is fixedly connected to the bottom of the vertical rod (8). Connecting rods (10) are rotatably connected to the left and right sides of the inner wall of the cleaning tank (1). Gears (11) are fixedly connected to the outer walls of the two connecting rods (10). Tooth plates (12) are fixedly connected to the left and right sides of the outer wall of the vertical rod (8). The toothed plates (12) are respectively meshed with the corresponding gears (11). The outer walls of the two gears (11) are fixedly connected to the opposite side. The rear end of the conveying pipe (6) passes through the cleaning tank (1) and is connected to the spray ring (14). The rear side of the outer wall of the spray ring (14) is connected to two hoses (15). The opposite sides of the two connecting plates (13) are fixedly connected to multiple spray pipes (16). The bottom ends of the multiple spray pipes (16) are respectively connected to the corresponding hoses (15). The top of the cleaning tank (1) is provided with a sealing assembly. The inner wall of the water tank (3) is provided with a filter mechanism (2). The filter mechanism (2) is used to filter the cleaning liquid.
2. The cleaning device for a drug transdermal testing instrument according to claim 1, characterized in that: The filtration mechanism (2) includes a filter frame (201). The outer wall of the filter frame (201) is slidably connected to the inner wall of the water tank (3). The left and right sides of the outer wall of the filter frame (201) are provided with sliding grooves (202). The inner walls of the two sliding grooves (202) are slidably connected with locking blocks (203). Two springs (204) are fixedly connected to the adjacent side of the two locking blocks (203). The two springs (204) are fixedly connected to the corresponding sliding grooves (202). A pull rod (205) is fixedly connected to the adjacent side of the two locking blocks (203). The adjacent ends of the two pull rods (205) pass through the filter frame (201). The left and right sides of the inner wall of the water tank (3) are provided with locking slots (206). The two locking blocks (203) are engaged with the corresponding locking slots (206).
3. The cleaning device for a drug transdermal testing instrument according to claim 1, characterized in that: The sealing assembly includes a cover plate (17), which is rotatably connected to the top rear side of the cleaning tank (1). A plurality of pressure rods (18) are fixedly connected to the bottom of the cover plate (17). Two hooks (19) are fixedly connected to the front side of the outer wall of the cover plate (17). Two fasteners (20) are fixedly connected to the front side of the outer wall of the cleaning tank (1). The two fasteners (20) are respectively engaged with the corresponding hooks (19).
4. The cleaning device for a transdermal drug testing apparatus according to claim 1, wherein: An observation frame (21) is fixedly connected to the right side of the outer wall of the cleaning tank (1), and a transparent plate (22) is fixedly connected to the inner wall of the observation frame (21).
5. The cleaning device for a transdermal drug testing apparatus according to claim 3, wherein: The top of the cover plate (17) is provided with an information board (23), and screws (24) are threadedly connected to the four corners of the outer wall of the information board (23), and the bottom of the screws (24) are threadedly connected to the cover plate (17).
6. The cleaning device for a transdermal drug testing apparatus according to claim 3, wherein: A handle (25) is fixedly connected to the top front side of the cover plate (17), and the surface of the handle (25) is treated with anti-slip treatment.
7. The cleaning device for a transdermal drug testing apparatus according to claim 1, wherein: A support base (26) is fixedly connected to the right side of the outer wall of the water tank (3), and the top of the support base (26) is in contact with the bottom of the water pump (5).
8. The cleaning device for a drug transdermal testing instrument according to claim 1, characterized in that: The bottom left and right sides of the cleaning tank (1) are fixedly connected with mounting plates (27), and bolts (28) are threadedly connected to the four corners of the bottom of the two mounting plates (27).