Quick release structure of underwater robot brush disc

Abstract

The application discloses a quick release structure of an underwater robot brush disc and relates to the technical field of underwater robots. The quick release structure comprises an underwater robot body, a searchlight assembly is arranged at the front end of the underwater robot body, a quick release assembly is arranged at the lower end of the underwater robot body, the quick release assembly comprises a quick release positioning sleeve, the inside of the quick release positioning sleeve is slidably connected to the upper end of a quick release locking sleeve, the outside of the upper end of the quick release locking sleeve is fixedly installed with locking cross blocks at equal angles, and the lower end of the underwater robot body is provided with a driving assembly. The quick release structure of the underwater robot brush disc locks the quick release positioning sleeve at the bottom of the underwater robot body and the quick release locking sleeve at the upper end of the brush disc body, avoids the separation of the brush disc body and does not affect the rotation, and simultaneously realizes the insertion of the locking pins distributed at equal angles through the mutual engagement between the driving disc body and the transmission disc body, so that the stability and quick release efficiency in the rotation process of the brush disc body are improved.

Description

Technical Field

[0001] This invention relates to the field of underwater robot technology, specifically to a quick-release structure for an underwater robot brush plate. Background Technology

[0002] The brush disc of an underwater robot is the core cleaning component mounted on an underwater cleaning robot. It typically consists of the brush disc body, an underwater drive motor, a brush bristle structure, and matching installation and connection components. It efficiently removes marine organisms, rust, and dirt adhering to the surfaces of ship hulls, underwater pipes, etc. At the same time, through its structural design adaptability, it can also play a role in buffering, protection, and auxiliary guidance during operation, preventing the robot body from directly colliding with the structure being cleaned. The mainstream solution mostly uses a clamp-type quick-release mechanism with a lifting eye nut to achieve quick locking and unlocking.

[0003] CN122379775A discloses a quick-connect structure for a marine operation robot. The quick-connect assembly includes a limiting structure and quick-release fasteners. The limiting structure restricts the horizontal displacement of the underwater thruster module relative to the wall-climbing robot module, while the quick-release fasteners allow for detachable locking of both. It also includes a working module that can be detachably installed at the front end of the wall-climbing robot module via slots and plugs. An internal thrust spring provides vertical floating force to the working module to adaptively conform to the working surface. The main frame size of the underwater thruster module is larger than or equal to the wall-climbing module body to achieve miniaturization and adaptation. This invention achieves flexible combination and rapid separation of the wall-climbing and propulsion modules, resulting in multi-functionality, rapid maintenance, and lightweight adaptation, significantly improving operational efficiency.

[0004] Application CN216332675U discloses an underwater robot lens compartment device and an underwater robot. The lower cover of the lens assembly is connected to the positioning flange via a quick-release structure. This underwater robot lens compartment device, designed with this structure, not only provides a stable and reliable connection but also facilitates the tool-free assembly and disassembly of the lens assembly, allowing users to replace the lens assembly with a suitable one according to different usage environments or needs. Furthermore, the quick-release structure between the lens assembly and the compartment effectively improves the convenience of replacing the lens assembly, thus greatly enhancing the usability of the underwater robot.

[0005] However, the quick-release structure disclosed above for underwater robots still has the following problems in actual use: The brush disc and drive shaft of existing underwater cleaning robots are usually fastened with bolts or fixed with set screws. Bolt connection requires divers or robotic arms to rotate the brush disc multiple times underwater using tools such as wrenches. Replacing a brush disc often takes tens of minutes or even longer, which seriously affects the efficiency of operation. The high salt spray environment of seawater can easily cause electrochemical corrosion and rusting of bolts, threads and other connecting parts, making disassembly extremely difficult and even requiring destructive removal, resulting in the scrapping of the drive shaft or brush disc.

[0006] Therefore, we propose a quick-release structure for underwater robot brushes to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a quick-release structure for the brush disc of an underwater robot. This addresses the problem that existing underwater cleaning robots typically use bolted or screw-fixed connections between the brush disc and the drive shaft. Bolted connections require underwater operation by divers or robotic arms using wrenches or other tools, involving multiple rotations. Replacing a single brush disc often takes tens of minutes or even longer, severely impacting operational efficiency. The high salt spray environment of seawater easily causes electrochemical corrosion and seizing of bolts, threads, and other connecting parts, making disassembly extremely difficult and sometimes even requiring destructive removal, resulting in the scrapping of the drive shaft or brush disc.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a quick-release structure for an underwater robot brush plate, comprising an underwater robot body, wherein a detection component is provided at the front end of the underwater robot body, and the detection component enables the detection and identification of the underwater working environment; The lower end of the underwater robot body is provided with a quick-release assembly, and the quick-release assembly includes a quick-release positioning sleeve fixedly installed in the middle of the bottom surface of the underwater robot body, and the interior of the quick-release positioning sleeve is slidably connected to the upper end of the quick-release locking sleeve. Among them, a locking cross block is fixedly installed at an equal angle on the outer side of the upper end of the quick-release locking sleeve, and the locking cross block is slidably installed on the upper part of the quick-release positioning sleeve. The underwater robot body has a drive assembly at its lower end, which includes a drive motor. The drive motor has a brush plate body at its lower end, and the brush plate body has a plastic brush strip inside its lower end.

[0009] Preferably, the lower end of the quick-release locking sleeve included in the quick-release assembly is rotatably mounted on the upper outer wall of the brush disc body via a bearing, and the quick-release locking sleeve, the brush disc body, and the quick-release positioning sleeve are distributed vertically and coaxially, and the quick-release positioning sleeve has quick-release grooves opened at equal angles inside, and the locking cross block is slidably mounted inside the quick-release groove.

[0010] Preferably, the quick-release assembly includes a positioning platform, which is disposed inside the upper part of the quick-release positioning sleeve. The positioning platform is used to engage with the locking cross block above the outer end of the quick-release locking sleeve to prevent the locking cross block from sliding downward and disengaging from the quick-release locking sleeve. Furthermore, the outer wall of the quick-release positioning sleeve is provided with an unlocking collar.

[0011] Preferably, the quick-release assembly includes a closed slider, which is slidably disposed in the quick-release groove inside the quick-release positioning sleeve. The outer end of the closed slider is fixedly connected to the upper end of the transmission bracket, and the lower end of the transmission bracket, which is set at equal angles, is fixedly connected to the top surface of the unlocking collar.

[0012] Preferably, the quick-release assembly includes a locking screw, which is respectively disposed inside the front end of the unlocking collar and the quick-release positioning sleeve, and the lower end of the locking screw is threaded with a locking nut, thereby fixing the position of the locking screw on the outer wall of the quick-release positioning sleeve.

[0013] Preferably, the drive assembly includes a transmission disk body, which is fixedly installed at the center of the upper end of the brush disk body. Transmission protrusions are fixedly installed at equal angles on the upper end of the transmission disk body. A drive disk body is provided at the upper end of the transmission disk body, and drive protrusions are fixedly installed at equal angles on the bottom end of the drive disk body. The drive protrusions and transmission protrusions are meshed with each other in the same number and in an alternating manner.

[0014] Preferably, the drive assembly includes a drive motor that is fixedly installed inside the lower part of the underwater robot body, and the bottom end of the drive motor output shaft is fixedly connected to the top surface of the drive disk body by a positioning bolt. The outer wall of the drive disk body is provided with a positioning groove, and a positioning slide rod is fixedly provided at equal angles inside the positioning groove.

[0015] Preferably, the drive assembly includes a locking sleeve, the upper end of which is slidably fitted inside the positioning groove on the outer wall of the drive disc, and the positioning rod slides through the upper end of the locking sleeve. The positioning rod and the locking sleeve are connected to each other by a contact spring. In the initial state, the locking sleeve is located below the drive disc.

[0016] Preferably, the drive assembly includes a locking pin, which is fixedly installed at an equal angle inside the lower part of the locking sleeve, and the inner end of the locking pin extends into the interior of the locking groove, and the locking groove is opened at an equal angle on the outer side of the transmission disc body and the drive disc body.

[0017] Preferably, the locking grooves included in the drive assembly are interconnected after the transmission disc body and the drive disc body are engaged, and after the locking sleeve on the outer wall of the drive disc body descends, it is inserted into the locking groove on the outer wall of the transmission disc body through an internal locking pin, which is used to improve the stability of torque transmission between the transmission disc body and the drive disc body.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The quick-release structure of the underwater robot brush disc is locked by the quick-release positioning sleeve at the bottom of the underwater robot body and the quick-release locking sleeve at the top of the brush disc body, preventing the brush disc body from disengaging without affecting rotation. At the same time, the interlocking between the drive disc body and the transmission disc body, along with the locking pins distributed at equal angles, achieves the insertion connection, improving the stability and quick-release efficiency during the rotation of the brush disc body. The specific details are as follows: 1. The drive motor drives the drive protrusion to rotate through the drive disc body. The drive protrusion directly meshes with the transmission protrusion at the upper end of the transmission disc body, transmitting torque to the brush disc body without loss. The staggered meshing structure ensures that the torque transmission path is rigid and direct. There is no slippage or free spin during the rotation of the brush disc body, and the torque requirements of underwater cleaning operations are fully met. The metal meshing surfaces of the drive protrusion and the transmission protrusion are in close contact throughout the entire process. No deformation or breakage will occur under high load conditions, and the transmission stability and durability are improved simultaneously.

[0019] Furthermore, when the drive protrusion engages with the transmission protrusion, the locking sleeve slides downward under the pressure of the resisting spring, and the inner end of the locking pin is simultaneously inserted into the locking groove that connects the transmission disc body and the drive disc body. The cylindrical structure of the locking pin completely fills the cavity of the locking groove, and the relative displacement between the transmission disc body and the drive disc body is three-dimensionally restricted.

[0020] 2. When the quick-release locking sleeve is inserted into the quick-release positioning sleeve, the locking cross block slides along the quick-release slide groove to the top of the positioning platform. Rotating the quick-release locking sleeve causes the locking cross block to be misaligned with the quick-release slide groove. The bottom surface of the locking cross block is in contact with the top surface of the positioning platform. The axial displacement of the quick-release locking sleeve is mechanically blocked, thus achieving rigid fixation of the brush plate body. The impact force generated when the underwater robot moves is evenly distributed through the positioning platform.

[0021] 3. After the quick-release locking sleeve is rotated into place, the closed slider is driven by the transmission bracket to slide downward, completely covering the open end of the quick-release slide groove. This slider structure prevents external water and impurities from entering the quick-release positioning sleeve. The mechanical transmission area of ​​the quick-release slide groove remains dry and clean. During underwater operations, sand and aquatic plants cannot get stuck in the gap between the locking block and the quick-release slide groove. The smoothness of the quick-release component's movement is not affected by the environment, and there is no abnormal resistance or jamming during the disassembly process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the drive motor mounting structure of the present invention; Figure 3 This is a schematic diagram of the mounting structure of the brush disk body of the present invention; Figure 4 This is a three-dimensional structural diagram of the quick-release positioning sleeve and quick-release locking sleeve of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the distribution structure of the locking cross block and the closed slider of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a schematic diagram of the installation structure of the drive motor and brush disc body of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the locking anti-slip sleeve of the present invention; Figure 10 This is a three-dimensional structural diagram of the transmission disc and drive disc of the present invention; Figure 11 This is a schematic diagram of the meshing structure between the transmission disc and the drive disc of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram at point C.

[0023] In the diagram: 1. Underwater robot body; 2. Searchlight assembly; 3. Quick-release positioning sleeve; 4. Quick-release locking sleeve; 5. Locking cross block; 6. Drive motor; 7. Brush disc body; 8. Quick-release slide groove; 9. Positioning platform; 10. Unlocking collar; 11. Enclosed slider; 12. Plastic brush strip; 13. Transmission bracket; 14. Locking screw; 15. Locking nut; 16. Transmission disc body; 17. Transmission protrusion; 18. Anti-collision spring; 19. Drive disc body; 20. Drive protrusion; 21. Positioning bolt; 22. Positioning slide groove; 23. Positioning slide rod; 24. Locking sleeve; 25. Locking pin; 26. Locking slide groove. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-12 The present invention provides the following technical solution: Example 1: To address the problems existing in the quick-release process of brushes in existing underwater robots, this example discloses the following technical solution: a quick-release structure for an underwater robot brush, comprising an underwater robot body 1, a detection component 2 at the front end of the underwater robot body 1 for detecting and identifying the underwater working environment; a drive component at the lower end of the underwater robot body 1, including a drive motor 6, and a brush body 7 at the lower end of the drive motor 6, with a plastic brush strip 12 at the lower end of the brush body 7; the drive motor 6 is fixedly installed inside the lower part of the underwater robot body 1, and the bottom end of the output shaft of the drive motor 6 is fixedly connected to the top surface of the drive disc body 19 by a positioning bolt 21; a positioning groove 22 is provided on the outer wall of the drive disc body 19, and a positioning slide rod 23 is fixedly provided at equal angles inside the positioning groove 22.

[0026] The drive assembly includes a locking sleeve 24, the upper end of which is slidably fitted inside the positioning groove 22 on the outer wall of the drive disc body 19. The positioning rod 23 slides through the upper end of the locking sleeve 24, and the positioning rod 23 and the locking sleeve 24 are connected to each other by a contact spring 18. In the initial state, the locking sleeve 24 is located below the drive disc body 19. The drive assembly includes a transmission disc body 16, which is fixedly installed at the center of the upper end of the brush disc body 7. The upper end of the transmission disc body 16 is fixedly installed with transmission protrusions 17 at equal angles. The upper end of the transmission disc body 16 is provided with the drive disc body 19, and the bottom end of the drive disc body 19 is fixedly installed with drive protrusions 20 at equal angles. The drive protrusions 20 and the transmission protrusions 17 are connected to each other in an equal number and staggered manner.

[0027] The drive assembly includes a locking pin 25, which is fixedly installed at an equal angle inside the lower part of the locking sleeve 24. The inner end of the locking pin 25, which is set at an equal angle, extends into the interior of the locking groove 26. The locking groove 26 is opened at an equal angle on the outer side of the transmission disc 16 and the drive disc 19.

[0028] The locking groove 26 included in the drive assembly is interconnected after the transmission disc 16 and the drive disc 19 are engaged. After the locking sleeve 24 on the outer wall of the drive disc 19 is lowered, it is inserted into the locking groove 26 on the outer wall of the transmission disc 16 through the internal locking pin 25, which is used to improve the stability of torque transmission between the transmission disc 16 and the drive disc 19.

[0029] like Figures 10-12As shown, when the brush plate body 7 needs to be installed at the lower end of the underwater robot body 1, the underwater robot body 1 is connected to the brush plate body 7 through the internal drive motor 6. The drive plate body 19 is placed at the bottom end of the drive shaft of the drive motor 6, and the drive plate body 19 is locked at the bottom end of the output shaft of the drive motor 6 by the positioning bolts 21 distributed at equal angles. Then, the brush plate body 7 is first inserted into the internal center position of the underwater robot body 1 from the bottom up. The transmission plate body 16 fixed at the upper end of the brush plate body 7 is connected to the drive plate body 19 above. The transmission protrusions 17 distributed at equal angles at the upper end of the transmission plate body 16 and the drive protrusions 20 distributed at equal angles at the bottom end of the drive plate body 19 are arranged in a staggered structure, so that the adjacent transmission protrusions 17 and drive protrusions 20 are engaged with each other, so that the drive motor 6 drives the lower engaged transmission plate body 16 and the brush plate body 7 to rotate through the drive plate body 19 during operation.

[0030] Furthermore, when it is necessary to improve the rotational stability of the brush body 7, the positioning groove 22 opened on the outside of the drive disc 19 is used to install the locking sleeve 24, and the positioning rods 23 distributed at equal angles and the contact spring 18 abut against the locking sleeve 24, so that the locking sleeve 24 drives the locking pins 25 distributed at equal angles inside to descend synchronously. The inner end of the locking pin 25 slides into the inside of the locking groove 26 opened on the outside of the transmission protrusion 17 and the drive protrusion 20, so that the locking pin 25 is inserted into the lower part of the inside of the locking groove 26, so as to lock the transmission disc 16 and the drive disc 19 and ensure the stability during the torque transmission process.

[0031] Example 2: To address the problems existing in the quick-release process of the brush discs of current underwater robots, this example discloses the following technical solution: A quick-release assembly is provided at the lower end of the underwater robot body 1, and the quick-release assembly includes a quick-release positioning sleeve 3 fixedly installed in the middle of the bottom surface of the underwater robot body 1, and the interior of the quick-release positioning sleeve 3 is slidably connected to the upper end of the quick-release locking sleeve 4; wherein, a locking cross block 5 is fixedly installed at equal angles on the outer side of the upper end of the quick-release locking sleeve 4, and the locking cross block 5 is slidably installed in the upper part of the interior of the quick-release positioning sleeve 3; the lower end of the quick-release locking sleeve 4 included in the quick-release assembly is rotatably installed on the upper outer wall of the brush disc body 7 through a bearing, and the quick-release locking sleeve 4, the brush disc body 7, and the quick-release positioning sleeve 3 are distributed vertically coaxially, and the interior of the quick-release positioning sleeve 3 is provided with quick-release grooves 8 at equal angles, and the locking cross block 5 is slidably installed in the interior of the quick-release grooves 8.

[0032] The quick-release assembly includes a positioning platform 9, which is located inside the upper part of the quick-release positioning sleeve 3. The positioning platform 9 is used to engage with the locking cross block 5 above the outer end of the quick-release locking sleeve 4 to prevent the locking cross block 5 from sliding downward and disengaging from the quick-release locking sleeve 4.

[0033] like Figures 6-7 As shown, when the brush body 7 is installed with the underwater robot body 1, the quick-release locking sleeve 4 installed on the upper end of the brush body 7 moves to the outer side of the bottom surface of the underwater robot body 1. The upper end of the quick-release locking sleeve 4 is inserted into the inner position of the quick-release positioning sleeve 3. The locking cross block 5, which is installed at an equal angle above the outer end of the quick-release locking sleeve 4, slides through the quick-release groove 8 opened inside the quick-release positioning sleeve 3. When the upper end of the locking cross block 5 moves to the upper position platform 9 inside the quick-release positioning sleeve 3, the quick-release locking sleeve 4 installed on the outer side of the upper end of the brush body 7 is rotated by the rotary bearing, so that the locking cross block 5 and the quick-release groove 8 are misaligned, thus preventing the quick-release locking sleeve 4 and the quick-release positioning sleeve 3 from separating and falling off from each other.

[0034] Example 3: To solve the problems existing in the quick-release process of the brush plate of the current underwater robot, this example discloses the following technical solution: the outer wall of the quick-release positioning sleeve 3 is slidably fitted with an unlocking collar 10; the quick-release assembly includes a closed slider 11, which is slidably disposed in the quick-release groove 8 inside the quick-release positioning sleeve 3, and the outer end of the closed slider 11 is fixedly connected to the upper end of the transmission bracket 13, and the lower end of the transmission bracket 13, which is set at equal angles, is fixedly connected to the top surface of the unlocking collar 10; the quick-release assembly includes a locking screw 14, which is respectively disposed through the unlocking collar 10 and the front end of the quick-release positioning sleeve 3, and the lower end of the locking screw 14 is threadedly connected to a locking nut 15, thereby fixing the position of the locking screw 14 on the outer wall of the quick-release positioning sleeve 3.

[0035] like Figures 3-5 As shown, when the quick-release locking sleeve 4 is inserted into the quick-release positioning sleeve 3, the locking cross block 5 slides upward against the correspondingly distributed closed slider 11, and after rotation, the closed slider 11 slides downward, thereby closing the quick-release groove 8 opened at the same angle again. The closed slider 11 is connected to the unlocking collar 10 through the transmission bracket 13 at the outer end. The unlocking collar 10 is connected to the quick-release positioning sleeve 3 through the external locking screw 14 and locking nut 15, thereby locking the position of the unlocking collar 10 and the closed slider 11, preventing the quick-release groove 8 from opening and affecting the positioning operation of the quick-release locking sleeve 4. At the same time, the brush plate body 7 is locked below the underwater robot body 1 by the quick-release locking sleeve 4, and the drive motor 6 drives the brush plate body 7 and the plastic brush strip 12 to rotate, so as to realize the underwater cleaning operation.

[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A quick-release structure for an underwater robot brush plate, comprising an underwater robot body, wherein a detection component is provided at the front end of the underwater robot body, and the detection component enables the detection and identification of the underwater working environment; Its features are, Also includes: The lower end of the underwater robot body is provided with a quick-release assembly, and the quick-release assembly includes a quick-release positioning sleeve fixedly installed in the middle of the bottom surface of the underwater robot body, and the interior of the quick-release positioning sleeve is slidably connected to the upper end of the quick-release locking sleeve. Among them, a locking cross block is fixedly installed at an equal angle on the outer side of the upper end of the quick-release locking sleeve, and the locking cross block is slidably installed on the upper part of the quick-release positioning sleeve. The underwater robot body has a drive assembly at its lower end, which includes a drive motor. The drive motor has a brush plate body at its lower end, and the brush plate body has a plastic brush strip inside its lower end.

2. The quick-release structure for an underwater robot brush plate according to claim 1, characterized in that: The quick-release assembly includes a quick-release locking sleeve whose lower end is rotatably mounted on the upper outer wall of the brush body via a bearing. The quick-release locking sleeve, the brush body, and the quick-release positioning sleeve are distributed vertically and coaxially. The quick-release positioning sleeve has quick-release grooves at equal angles inside, and the locking cross block is slidably mounted inside the quick-release groove.

3. The quick-release structure for an underwater robot brush plate according to claim 2, characterized in that: The quick-release assembly includes a positioning platform, which is located inside the upper part of the quick-release positioning sleeve. The positioning platform is used to engage with the locking cross block above the outer end of the quick-release locking sleeve to prevent the locking cross block from sliding downward and disengaging from the quick-release locking sleeve. The outer wall of the quick-release positioning sleeve is provided with an unlocking collar.

4. The quick-release structure for an underwater robot brush plate according to claim 3, characterized in that: The quick-release assembly includes a closed slider, which is slidably disposed in the quick-release groove inside the quick-release positioning sleeve. The outer end of the closed slider is fixedly connected to the upper end of the transmission bracket, and the lower end of the transmission bracket, which is set at equal angles, is fixedly connected to the top surface of the unlocking collar.

5. The quick-release structure for an underwater robot brush plate according to claim 4, characterized in that: The quick-release assembly includes a locking screw, which is respectively inserted through the front end of the unlocking collar and the quick-release positioning sleeve. The lower end of the locking screw is threaded with a locking nut, and the position of the locking screw on the outer wall of the quick-release positioning sleeve is fixed by the locking screw.

6. The quick-release structure for an underwater robot brush plate according to claim 1, characterized in that: The drive assembly includes a transmission disc body, which is fixedly installed at the center of the upper end of the brush body. Transmission protrusions are fixedly installed at equal angles on the upper end of the transmission disc body. A drive disc body is provided at the upper end of the transmission disc body, and drive protrusions are fixedly installed at equal angles on the bottom end of the drive disc body. The drive protrusions and transmission protrusions are connected to each other in an equal number and staggered manner.

7. The quick-release structure for an underwater robot brush plate according to claim 6, characterized in that: The drive assembly includes a drive motor that is fixedly installed inside the lower part of the underwater robot body. The bottom end of the drive motor output shaft is fixedly connected to the top surface of the drive plate by a positioning bolt. The outer wall of the drive plate is provided with a positioning groove, and a positioning slide rod is fixedly installed at equal angles inside the positioning groove.

8. The quick-release structure of an underwater robot brush plate according to claim 7, characterized in that: The drive assembly includes a locking sleeve, the upper end of which is slidably fitted inside the positioning groove on the outer wall of the drive disc, and the positioning rod slides through the upper end of the locking sleeve. The positioning rod and the locking sleeve are connected to each other by a contact spring. In the initial state, the locking sleeve is located below the drive disc.

9. The quick-release structure of an underwater robot brush plate according to claim 8, characterized in that: The drive assembly includes a locking pin, which is fixedly installed at an equal angle inside the lower part of the locking sleeve. The inner end of the locking pin, which is set at an equal angle, extends into the interior of the locking groove. The locking groove is opened at an equal angle on the outer side of the transmission disc body and the drive disc body.

10. The quick-release structure for an underwater robot brush plate according to claim 9, characterized in that: The locking grooves included in the drive assembly are interconnected after the transmission disc body and the drive disc body are engaged. After the locking sleeve on the outer wall of the drive disc body descends, it is inserted into the locking groove on the outer wall of the transmission disc body through the internal locking pin, which is used to improve the stability of torque transmission between the transmission disc body and the drive disc body.

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