Vacuum suction cup capable of being adsorbed on cement floor underwater and using method of vacuum suction cup

Abstract

The invention provides a vacuum chuck capable of being adsorbed on a cement floor underwater, and relates to the technical field of vacuum chucks, the vacuum chuck comprises a chuck seat, an inner ring coaming and an outer ring coaming are arranged on the chuck seat, the outer ring coaming is located on the outer side of the inner ring coaming, a vacuum cavity is formed in the inner side of the inner ring coaming, and a glue injection cavity is formed between the outer ring coaming and the inner ring coaming; the inner ring sealing strip is fixedly arranged at the end part of the inner ring surrounding plate; and the outer ring sealing strip is fixedly arranged at the end part of the outer ring surrounding plate. The invention further provides a using method of the vacuum suction cup capable of being adsorbed to the cement ground underwater, gaps between the inner ring sealing strip and the cement ground and gaps between the outer ring sealing strip and the cement ground are filled with sealant, and therefore the situation that river water enters the vacuum cavity after the vacuum suction cup applied to the cement ground and capable of being used in the underwater environment is submerged by the river water is avoided; the adsorption fixing effect is prevented from being influenced, so that the underwater working environment can be better adapted.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic turbine robot processing, and in particular to a vacuum suction cup capable of being adsorbed on a cement floor underwater and a use method thereof. Background Art

[0002] Affected by many factors such as the need to meet the peak demand and ensure power supply during the winter, the hydropower station may increase the peak load regulation during the dry season, and multiple units will be operated normally. At that time, the window period when the downstream water level is lower than the tail sill of the energy dissipation pool will be reduced. When the downstream water level is higher than the tail sill, the river water will flow back into the energy dissipation pool. During the period when the hydropower station units enter the increased peak load regulation period, the staff need to carry out maintenance work in the energy dissipation pool. Once the downstream river water flows back into the energy dissipation pool, the staff must evacuate from the energy dissipation pool in advance, resulting in a waste of manpower, material and financial resources. In addition, there are safety hazards caused by high-altitude edge operations, heavy lifting, and lifting operations under high-voltage lines during the retreat process. Therefore, in order to ensure that the staff can carry out maintenance smoothly during the period when the hydropower station units enter the increased peak load regulation period, it is necessary to set a water retaining plate on the cement floor of the tail sill of the energy dissipation pool to prevent the downstream river water from flowing back into the energy dissipation pool.

[0003] In the related art, a water retaining plate is fixed on the cement floor of the tail bank of the energy dissipation pool by a vacuum suction cup, and the water retaining plate is used to block the river water flowing back from the downstream. However, when the downstream river water overflows the water retaining plate and enters the energy dissipation pool, it may submerge the vacuum suction cup. Since the cement floor surface of the tail bank of the energy dissipation pool is relatively rough, when the river water submerges the vacuum suction cup, it may penetrate into the inside of the vacuum suction cup from the gap between the vacuum suction cup and the cement floor, thereby affecting the suction force of the vacuum suction cup. Therefore, it is necessary to develop a vacuum suction cup that can be used in an underwater environment.

[0004] The invention patent with the publication number CN112456133B discloses an adsorption suction cup structure, which includes a suction cup body. The suction cup body is divided into two parts. The bottom is a funnel-shaped device in contact with the gripping body, and the top is a main suction cup device with a hollow structure. The lower end of the funnel-shaped device is open, and the upper end of the funnel-shaped device is connected to the main suction cup device through the suction cup mouth and encloses the internal chamber of the suction cup. The inner wall surface of the main suction cup device is formed with an internal protrusion downward. When the above-mentioned adsorption suction cup structure is used, the funnel-shaped device is attached to the adsorption position, and a certain force is applied underwater to achieve adsorption and fixation. However, when the funnel-shaped device of the above-mentioned adsorption suction cup structure is adsorbed and fixed on the cement floor, there will still be a certain gap between the funnel-shaped device and the cement floor, thereby affecting the adsorption force of the vacuum suction cup and failing to adapt well to the underwater working environment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a vacuum suction cup that can be adsorbed on a cement floor underwater and a method for using the same, which is used to solve the problem that when the adsorption suction cup structure in the related art is in use, there is still a certain gap between the funnel-shaped device and the cement floor, thereby affecting the adsorption force of the vacuum suction cup and failing to adapt to the underwater working environment. In order to achieve the above purpose, the present invention adopts the following technical solutions: A vacuum suction cup capable of being adsorbed on a cement floor underwater, comprising: A suction cup seat, wherein an inner circle enclosure plate and an outer circle enclosure plate are provided on the suction cup seat, wherein the outer circle enclosure plate is located outside the inner circle enclosure plate, a vacuum cavity is formed inside the inner circle enclosure plate, a glue injection cavity is formed between the outer circle enclosure plate and the inner circle enclosure plate, and the suction cup seat is provided with a vacuum extraction port connected to the vacuum cavity and a glue injection port connected to the glue injection cavity; An inner ring sealing strip, wherein the inner ring sealing strip is fixedly arranged at an end of the inner ring enclosure plate; An outer ring sealing strip, the outer ring sealing strip is fixedly arranged at the end of the outer ring enclosure plate; A scraping brush assembly, wherein the scraping brush assembly is used for scraping the cement floor; A telescopic mechanism is disposed on the suction cup seat and is used to drive the scraping brush assembly to retract into the vacuum chamber or extend out of the vacuum chamber.

[0006] Furthermore, the scraping brush assembly includes a central axis, a brush seat and an expansion piece, the telescopic mechanism is connected to the central axis, two brush seats are provided, and bristles are respectively provided on the two brush seats. The expansion piece is provided on the central axis and connected to the two brush seats. The expansion piece is used to drive the two brush seats to move towards or away from each other.

[0007] Furthermore, the unfolding member includes a first rotating shaft, a first worm and a driving rod, the first rotating shaft is rotatably arranged on the central shaft, the first rotating shaft is provided with a first gear and a first worm wheel, the brush seat is provided with a tooth row meshing with the first gear, the first worm is rotatably arranged on the central shaft and meshing with the first worm wheel, and the driving rod is rotatably arranged on the central shaft and connected to the first worm.

[0008] Furthermore, the telescopic mechanism includes a telescopic seat and a screw rod, the suction cup seat is provided with a guide groove, the telescopic seat is slidably arranged in the guide groove, the central axis is rotatably arranged on the telescopic seat, the telescopic seat is provided with a screw sleeve, the screw rod is rotatably arranged on the suction cup seat, and is threadedly connected to the screw sleeve.

[0009] Furthermore, the scraping brush assembly also includes a support, which is rotatably arranged on the end of the central axis close to the brush holder, and the support is provided with a pointed cone capable of standing on a cement floor.

[0010] Furthermore, it also includes a valve component and an opening and closing drive component, the valve component is used to seal or connect the vacuum chamber and the glue injection chamber, the opening and closing drive component is connected to the valve component, when the glue injection chamber is at atmospheric pressure, the valve component connects the vacuum chamber and the glue injection chamber, when the glue injection chamber is vacuum, the opening and closing drive component can drive the valve component to seal the vacuum chamber and the glue injection chamber.

[0011] Furthermore, the valve component includes a valve core, an air hole is provided on the inner ring plate, the valve core is rotatably provided on the inner ring plate, the valve core is provided with a valve hole that can overlap or stagger with the air hole, and the opening and closing drive component is connected to the valve core and can drive the valve core to rotate.

[0012] The opening and closing drive member includes an elastic member, a piston and a linkage member. A cylinder body that penetrates the injection cavity is provided on the outer ring enclosure plate. The piston is slidably arranged in the cylinder body. The elastic member is used to provide elastic force to push the piston to move toward the outside of the outer ring enclosure plate. The piston is connected to the valve core through a linkage member. When the piston slides along the cylinder body, it can drive the valve core to rotate.

[0013] The linkage member includes a second rotating shaft and a second worm, a gear ring is provided on the valve core, a rack is provided on the piston, the second rotating shaft and the second worm are rotatably arranged on the inner ring enclosure, the second rotating shaft is provided with a second gear meshing with the gear ring, and a second worm wheel meshing with the second worm, and the second worm is provided with a third gear meshing with the rack.

[0014] The present invention also provides a method for using a vacuum suction cup that can be adsorbed on a cement floor underwater, and using the vacuum suction cup as described above comprises the following steps: S1, placing the vacuum suction cup at a predetermined position so that the inner ring sealing strip and the outer ring sealing strip are close to but not touching the cement floor; S2. Drive the scraper brush assembly out of the vacuum chamber through the telescopic mechanism, support it on the cement floor with the pointed cone on the support, start the electric tool to drive the central axis, brush holder and bristles to rotate, and scrape and clean the cement floor that the inner ring sealing strip contacts to remove pumice, mud and debris on the surface; S3. After cleaning is completed, the two brush seats are driven to move toward each other through the unfolding and closing parts, so that the brush seats are contracted and closed, and then the scraping brush assembly is driven to be retracted into the vacuum chamber through the telescopic mechanism to avoid interference with the subsequent adsorption process; S4. Adjust the position of the suction cup seat through the telescopic mechanism so that the inner ring sealing strip and the outer ring sealing strip are closely attached to the cleaned cement floor, and start the vacuum generating device to evacuate the vacuum chamber and the glue injection chamber through the vacuum port until the inside of both chambers reaches a vacuum state; S5. When a vacuum is formed inside the injection cavity, the atmospheric pressure inside the injection cavity decreases, and the piston overcomes the resistance of the elastic member under the action of the external atmospheric pressure and moves toward the injection cavity, and drives the valve core to rotate through the linkage member, thereby blocking the connection between the vacuum cavity and the injection cavity and maintaining the vacuum state of the vacuum cavity; S6. Inject sealant into the injection cavity through the injection port to fill the gap between the outer ring sealing strip and the cement floor to further improve the sealing performance. After the injection is completed, wait for the sealant to solidify, confirm the adsorption effect of the vacuum suction cup, and then fix the water retaining plate on the suction cup seat to complete the protection of the cement floor of the tail bank of the stilling pool; S7. When it is necessary to release the adsorption, restore the atmospheric pressure in the vacuum chamber through the vacuum port, and finally lift the suction cup seat from the cement floor through the telescopic mechanism to complete the removal of the vacuum suction cup.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The scraper assembly is used to pre-treat the cement floor and remove the pumice, sludge and other debris on the floor, which significantly improves the contact and sealing performance between the inner and outer sealing strips and the cement floor. The automatic telescopic design of the scraper assembly avoids interference with the suction cup adsorption process, ensuring the safety and reliability of the operation; 2. The design of valve components and opening and closing drive components ensures the vacuum state of the vacuum chamber and the injection chamber before injection, avoiding the risk of river water entering the vacuum chamber during underwater operations; 3. Using electric tools to drive the scraper assembly and telescopic mechanism makes the entire operation process simpler and more efficient, reduces the complexity and labor intensity of manual operation, and realizes rapid switching of vacuum state through automated valve control, simplifies the operation steps, and improves work efficiency; 4. The design of the inner and outer ring sealing strips enables the suction cup to adapt to cement floors of different shapes and roughness, improving its applicability. The injection of sealant not only enhances the sealing performance, but also protects the sealing strips, thereby extending the service life of the vacuum suction cup. The vacuum suction cup is particularly suitable for underwater environments, solving the problem that traditional vacuum suction cups are prone to failure when used underwater, thus expanding its scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a vacuum suction cup applied to a cement floor and usable in an underwater environment in an embodiment of the present application; Figure 2 A cross-sectional view from a first perspective of a vacuum suction cup applied to a cement floor and usable in an underwater environment in an embodiment of the present application; Figure 3A cross-sectional view from a second perspective of a vacuum suction cup applied to a cement floor and usable in an underwater environment in an embodiment of the present application; Figure 4 for Figure 2 A partial enlarged schematic diagram of part B; Figure 5 This is a schematic diagram of the structure of the brush holder and the first gear and other parts in the embodiment of the present application; Figure 6 A cross-sectional view from a third perspective of a vacuum suction cup applied to a cement floor and usable in an underwater environment in an embodiment of the present application; Figure 7 for Figure 6 A partial enlarged schematic diagram of part C in the middle; Figure 8 for Figure 2 A partial enlarged schematic diagram of part A; Fig. 9 A cross-sectional view of a vacuum suction cup applied to a cement floor and usable in an underwater environment from a fourth viewing angle in an embodiment of the present application; Fig.10 for Fig. 9 A partial enlarged schematic diagram of part D in the middle.

[0017] Description of reference numerals: 10. Suction cup seat; 11. Inner ring enclosure; 111. Air hole; 12. Outer ring enclosure; 121. Cylinder; 122. Bracket; 123. Guide hole; 13. Vacuum chamber; 14. Glue injection chamber; 15. Vacuum extraction port; 16. Glue injection port; 17. Guide groove; 18. Connecting seat; 19. Glue injection valve; 20, telescopic mechanism; 21, telescopic seat; 211, screw sleeve; 22, screw rod; 221, second sleeve; 30, middle shaft; 31, slide groove; 32, driving boss; 33, base; 40, brush seat; 41, tooth row; 42, bristles; 50, unfolding member; 51, first rotating shaft; 511, first gear; 512, first worm wheel; 52, first worm; 521, second bevel gear; 53, driving rod; 531, first sleeve; 532, first bevel gear; 60, support; 61, pointed cone; 70, opening and closing drive member; 71, spring; 72, piston; 721, guide rod; 722, flange; 723, rack; 73, second rotating shaft; 731, second gear; 732, second worm gear; 74, second worm; 741, third gear; 80. Valve core; 81. Valve hole; 82. Gear ring; 90. Inner ring sealing strip; 100. Outer ring sealing strip. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] A vacuum suction cup that can be adsorbed on a cement floor underwater, a suction cup seat 10, an inner circle enclosure plate 11 and an outer circle enclosure plate 12 are provided on the suction cup seat 10, the outer circle enclosure plate 12 is located outside the inner circle enclosure plate 11, a vacuum cavity 13 is formed inside the inner circle enclosure plate 11, a glue injection cavity 14 is formed between the outer circle enclosure plate 12 and the inner circle enclosure plate 11, and a vacuum extraction port 15 connected to the vacuum cavity 13 and a glue injection port 16 connected to the glue injection cavity 14 are provided on the suction cup seat 10; An inner ring sealing strip 90, wherein the inner ring sealing strip 90 is fixedly arranged at an end of the inner ring enclosure plate 11; An outer ring sealing strip 100, wherein the outer ring sealing strip 100 is fixedly arranged at an end of the outer ring enclosure plate 12; A scraping brush assembly, wherein the scraping brush assembly is used for scraping the cement floor; The telescopic mechanism 20 is disposed on the suction cup seat 10 , and is used to drive the scraping brush assembly to retract into the vacuum chamber 13 or extend out of the vacuum chamber 13 .

[0020] Reference Figure 1 and Figure 2 An inner ring enclosure 11 and an outer ring enclosure 12 are provided on the suction cup seat 10. The outer ring enclosure 12 is located outside the inner ring enclosure 11. The inner ring sealing strip 90 is fixed to the end of the inner ring enclosure 11, and the outer ring sealing strip 100 is fixed to the end of the outer ring enclosure 12.

[0021] A vacuum chamber 13 is formed inside the inner ring enclosure 11, and a glue injection chamber 14 is formed between the outer ring enclosure 12 and the inner ring enclosure 11. The suction cup seat 10 is provided with a vacuum extraction port 15 connected to the vacuum chamber 13, and a glue injection port 16 connected to the glue injection chamber 14. A glue injection valve 19 is provided at the glue injection port 16 of the suction cup seat 10.

[0022] Reference Figures 1 to 3 The telescopic mechanism 20 is arranged on the suction cup seat 10, and the scraping brush assembly is connected to the telescopic mechanism 20. The telescopic mechanism 20 is used to drive the scraping brush assembly to retract into the vacuum chamber 13 or extend out of the vacuum chamber 13, and the scraping brush assembly is used to scrape the cement floor. When the vacuum suction cup applied to cement floors and used in underwater environments of the present application is adsorbed and fixed to the cement floor at the end of the energy dissipation pool, the scraping brush assembly can be driven to extend out of the vacuum chamber 13 by the telescopic mechanism 20, and the cement floor contacted by the inner ring sealing strip 90 can be scraped and cleaned by the scraping brush assembly to remove the pumice, sludge and other debris on the surface of the cement floor, so as to avoid affecting the vacuum adsorption effect. After the pumice, sludge and other debris are cleaned, the scraping brush assembly is driven to retract into the vacuum chamber 13 by the telescopic mechanism 20 to avoid interference with the vacuum suction cup applied to cement floors and used in underwater environments of the present application adsorbed to the cement floor.

[0023] Reference Figures 2 to 4 In an optional embodiment, the structure and working principle of the scraping brush assembly are as follows: the scraping brush assembly includes a central axis 30, a brush holder 40, an unfolding member 50 and a support 60. The telescopic mechanism 20 is connected to the central axis 30. There are two brush holders 40. The central axis 30 is provided with a base 33. The base 33 is provided with a slide groove 31. The brush holder 40 is slidably inserted in the slide groove 31. The end of the central axis 30 away from the brush holder 40 is provided with a driving boss 32. The support 60 is rotatably arranged on the base 33 of the central axis 30 close to the end of the brush holder 40. The support 60 is provided with a pointed cone 61 that can stand on the cement floor. The two brush holders 40 are respectively provided with bristles 42. The unfolding member 50 is arranged on the base 33 of the central axis 30 and connected to the two brush holders 40. The unfolding member 50 is used to drive the two brush holders 40 to move in opposite directions or opposite directions.

[0024] When the scraping brush assembly is used to scrape and clean the cement floor contacted by the inner ring sealing strip 90, the support 60 is supported by the pointed cone 61 and stands on the cement floor. At this time, the inner ring sealing strip 90 and the outer ring sealing strip 100 are in a suspended state and are not in contact with the cement floor. The bristles 42 are in contact with the cement floor and are located on the side opposite to the inner ring sealing strip 90 outside the vacuum chamber 13. Then, the electric wrench is connected to the driving boss 32, and the central shaft 30, the brush holder 40 and the bristles 42 are driven by the electric wrench to rotate, and the annular area corresponding to the inner ring sealing strip 90 is cleaned on the cement floor by the bristles 42. After the cleaning is completed, the two brush holders 40 are driven to move toward each other by the unfolding member 50, so that the two brush holders 40 are contracted and closed, so that they can be contracted into the vacuum chamber 13 through the telescopic mechanism 20.

[0025] Reference Figures 4 to 7 In an optional embodiment, the structure and working principle of the unfolding member 50 are as follows: the unfolding member 50 includes a first rotating shaft 51, a first worm 52 and a driving rod 53. The first rotating shaft 51 is rotatably arranged on the base 33 at the end of the central shaft 30. The first rotating shaft 51 is provided with a first gear 511 and a first worm wheel 512. The brush holder 40 is provided with a tooth row 41 meshing with the first gear 511. The first worm 52 is rotatably arranged on the base 33 at the end of the central shaft 30 and meshing with the first worm wheel 512. The driving rod 53 is rotatably arranged on the central shaft 30 along the axial direction of the central shaft 30 and is connected to the first worm 52. More specifically, a first bevel gear 532 is provided at one end of the driving rod 53, and a second bevel gear 521 meshing with the first bevel gear 532 is provided on the first worm 52.

[0026] When it is necessary to drive the two brush holders 40 to move toward or away from each other through the unfolding member 50, a first sleeve 531 can be provided at the other end of the driving rod 53, and an electric wrench can be clamped with the first sleeve 531. The driving rod 53 can be driven to rotate by the electric wrench, and then the first worm 52 can be driven to rotate by the driving rod 53. Then, the first worm gear 512, the first rotating shaft 51 and the first gear 511 can be driven to rotate by the first worm 52. Then, under the interaction of the first gear 511 and the gear row 41, the two brush holders 40 are driven to move toward or away from each other.

[0027] Reference Figure 1 and Figure 6 In an optional embodiment, the specific structure of the telescopic mechanism 20 and the specific connection relationship with the central axis 30 are as follows: the telescopic mechanism 20 includes a telescopic seat 21 and a screw 22, the suction cup seat 10 is provided with a guide groove 17, the telescopic seat 21 is slidably penetrated in the guide groove 17, the central axis 30 is rotatably provided on the telescopic seat 21, the telescopic seat 21 is provided with a screw sleeve 211, the screw 22 is rotatably provided on the suction cup seat 10, and is screwed with the screw sleeve 211, and a second sleeve 221 is provided at one end of the screw 22.

[0028] When it is necessary to drive the scraper and brush assembly to retract into the vacuum chamber 13 or extend out of the vacuum chamber 13 through the telescopic mechanism 20, the electric wrench is clamped with the second sleeve 221, and the screw 22 is driven to rotate by the electric wrench. Then, under the interaction between the screw 22 and the screw sleeve 211, the telescopic seat 21 and the central axis 30 and other components are driven to move along the axial direction of the central axis 30, thereby driving the scraper and brush assembly to retract into the vacuum chamber 13 or extend out of the vacuum chamber 13.

[0029] Reference Figure 2 and Figure 6 The valve component is used to seal or connect the vacuum chamber 13 and the glue injection chamber 14. The opening and closing driving component 70 is connected to the valve component. When the glue injection chamber 14 is at atmospheric pressure, the valve component connects the vacuum chamber 13 and the glue injection chamber 14. When the glue injection chamber 14 is vacuum, the opening and closing driving component 70 can drive the valve component to seal the vacuum chamber 13 and the glue injection chamber 14.

[0030] When the cement floor is cleaned by the scraper assembly and the scraper assembly is retracted into the vacuum chamber 13 by the telescopic mechanism 20, the inner ring sealing strip 90 is placed on the cleaned cement floor, and the outer ring sealing strip 100 is in contact with the cement floor. At this time, the glue injection chamber 14 is at atmospheric pressure, the valve member connects the vacuum chamber 13 and the glue injection chamber 14, then the glue injection valve 19 is closed, and the vacuum generating device is connected to the vacuum port 15, and the vacuum generating device is used to evacuate the inside of the vacuum chamber 13. Since the vacuum chamber 13 is connected to the glue injection chamber 14, the inside of the glue injection chamber 14 is evacuated at the same time during the evacuation process. During the evacuation process, when the air pressure inside the glue injection chamber 14 changes from atmospheric pressure to vacuum state, the valve member is driven by the opening and closing driving member 70 to block the vacuum chamber 13 and the glue injection chamber 14, so that the vacuum chamber 13 is isolated from the glue injection chamber 14.

[0031] When the vacuum chamber 13 and the glue injection chamber 14 are in a vacuum state, the inner ring sealing strip 90 and the outer ring sealing strip 100 are adsorbed and fixed on the cement floor under the action of negative pressure. Then the glue injection valve 19 is connected to the sealant injection device, and then the glue injection valve 19 is opened, and the sealant is injected into the glue injection chamber 14 through the sealant injection device, and the gap between the inner ring sealing strip 90 and the outer ring sealing strip 100 and the cement floor is filled with the sealant, so as to prevent the river water from flooding the vacuum suction cup of the present application applied to the cement floor and can be used in an underwater environment and then entering the vacuum chamber 13, so as to prevent the adsorption and fixing effect from being affected, thereby better adapting to the underwater working environment.

[0032] Since the sealant is injected into the sealant injection cavity 14 when the cavity 14 is in a vacuum state, that is, when all air is exhausted, bubbles can be avoided from being generated in the sealant in the sealant injection cavity 14, thereby improving the sealing effect.

[0033] Reference Figures 8 to 10 In an optional embodiment, the specific structure of the valve member and the opening and closing driving member 70, and the specific connection relationship between the valve member and the opening and closing driving member 70 are as follows: The valve member includes a valve core 80, an air hole 111 is provided on the inner ring enclosure 11, the valve core 80 is rotatably provided on the inner ring enclosure 11, the valve core 80 is provided with a valve hole 81 that can overlap or stagger with the air hole 111, and the opening and closing driving member 70 is connected to the valve core 80 and can drive the valve core 80 to rotate. When the inside of the injection cavity 14 is in the atmospheric pressure state, the valve hole 81 of the valve core 80 overlaps with the air hole 111, and the vacuum cavity 13 is connected with the injection cavity 14 at this time; when the air pressure inside the injection cavity 14 changes from atmospheric pressure to vacuum, the valve core 80 is driven to rotate by the opening and closing driving member 70, so that the valve hole 81 of the valve core 80 is staggered with the air hole 111, and the vacuum cavity 13 is blocked and isolated from the injection cavity 14.

[0034] The opening and closing drive member 70 includes an elastic member and a piston 72. A cylinder 121 that penetrates the injection cavity 14 is provided on the outer ring plate 12. The piston 72 is slidably arranged in the cylinder 121. The piston 72 is connected to the valve core 80 through a linkage member. More specifically, the linkage member includes a second rotating shaft 73 and a second worm 74. A gear ring 82 is provided on the valve core 80. A rack 723 is provided on the piston 72. The second rotating shaft 73 and the second worm 74 are rotatably arranged on the inner ring plate 11. The second rotating shaft 73 is provided with a second gear 731 that meshes with the gear ring 82, and a second worm wheel 732 that meshes with the second worm 74. The second worm 74 is provided with a third gear 741 that meshes with the rack 723.

[0035] The elastic member is used to provide elastic force to push the piston 72 to move toward the outside of the outer ring plate 12. More specifically, the elastic member can be a spring 71. A bracket 122 is provided inside the cylinder 121. The bracket 122 is provided with a guide hole 123, which can be set as a square hole. A guide rod 721 with a square cross-section is provided on the piston 72. The guide rod 721 is slidably inserted into the guide hole 123. A flange 722 is provided on the guide rod 721. The spring 71 is sleeved on the outside of the guide rod 721, and the two ends of the spring 71 are respectively abutted against the bracket 122 and the flange 722.

[0036] When the air pressure inside the glue injection chamber 14 changes from atmospheric pressure to a vacuum state, the piston 72 overcomes the elastic force of the spring 71 under the action of the atmospheric pressure outside the glue injection chamber 14 and slides into the glue injection chamber 14. When the piston 72 slides along the cylinder 121, it can drive the valve core 80 to rotate, that is, when the piston 72 slides along the cylinder 121, the rack 723 drives the third gear 741 and the second worm 74 to rotate, and then the second worm gear 732, the second rotating shaft 73 and the second gear 731 are driven to rotate through the second worm 74, and then the second gear 731 drives the ring gear 82 and the valve core 80 to rotate, thereby switching the vacuum chamber 13 and the glue injection chamber 14 from a connected state to a blocked state.

[0037] A connecting seat 18 is provided on the suction cup seat 10. The vacuum suction cup of the present application, which is applied to cement floors and can be used in underwater environments, is adsorbed and fixed on the cement floor of the tail bank of the energy dissipation pool. After sealant is poured into the injection cavity 14, the water retaining plate can be connected to the suction cup seat 10 through the connecting seat 18, and the river water downstream of the energy dissipation pool can be blocked by the water retaining plate.

[0038] The present invention also provides a method for using a vacuum suction cup that can be adsorbed on a cement floor underwater, and using the vacuum suction cup as described above comprises the following steps: S1, placing the vacuum suction cup at a predetermined position so that the inner ring sealing strip 90 and the outer ring sealing strip 100 are close to but not in contact with the cement floor; S2, drive the scraping brush assembly to extend out of the vacuum chamber 13 through the telescopic mechanism 20, support it on the cement floor with the pointed cone 61 on the support 60, start the electric tool to drive the central shaft 30, the brush holder 40 and the bristles 42 to rotate, and scrape and clean the cement floor contacted by the inner ring sealing strip 90 to remove pumice, mud and debris on the surface; S3, after cleaning is completed, the two brush holders 40 are driven to move toward each other through the unfolding member 50, so that the brush holders 40 are contracted and closed, and then the scraping brush assembly is driven to be retracted into the vacuum chamber 13 through the telescopic mechanism 20 to avoid interference with the subsequent adsorption process; S4, adjusting the position of the suction cup seat 10 through the telescopic mechanism 20, so that the inner ring sealing strip 90 and the outer ring sealing strip 100 are closely attached to the cleaned cement floor, and starting the vacuum generating device to evacuate the vacuum chamber 13 and the glue injection chamber 14 through the vacuum port 15 until the inside of both reaches a vacuum state; S5. When a vacuum is formed inside the glue injection chamber 14, the atmospheric pressure inside the glue injection chamber 14 decreases, and the piston 72 overcomes the resistance of the elastic member such as the spring 71 under the action of the external atmospheric pressure and moves toward the inside of the glue injection chamber 14, and drives the valve core 80 to rotate through the linkage member, thereby blocking the connection between the vacuum chamber 13 and the glue injection chamber 14, and maintaining the vacuum state of the vacuum chamber 13; S6, injecting sealant into the injection cavity 14 through the injection port 16 to fill the gap between the outer ring sealing strip 100 and the cement floor to further improve the sealing performance. After the injection is completed, wait for the sealant to solidify, confirm the adsorption effect of the vacuum suction cup, and then fix the water retaining plate on the suction cup seat 10 to complete the protection of the cement floor of the tail sill of the stilling pool; S7. When it is necessary to release the adsorption, the atmospheric pressure in the vacuum chamber 13 is restored through the vacuum port 15, and finally the suction cup seat 10 is lifted from the cement floor through the telescopic mechanism 20 to complete the removal of the vacuum suction cup.

[0039] The vacuum suction cup of the present invention has significant advantages in improving sealing and stability, enhancing safety and reliability, simplifying operation procedures, adapting to various working environments, extending service life and economy. These beneficial effects make the invention have important value and broad prospects in practical applications. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A vacuum suction cup that can be adsorbed on a cement floor underwater, characterized in that: include: A suction cup seat (10), wherein the suction cup seat (10) is provided with an inner ring enclosure plate (11) and an outer ring enclosure plate (12), wherein the outer ring enclosure plate (12) is located outside the inner ring enclosure plate (11), a vacuum chamber (13) is formed inside the inner ring enclosure plate (11), a glue injection chamber (14) is formed between the outer ring enclosure plate (12) and the inner ring enclosure plate (11), and the suction cup seat (10) is provided with a vacuum extraction port (15) communicating with the vacuum chamber (13), and a glue injection port (16) communicating with the glue injection chamber (14); An inner ring sealing strip (90), the inner ring sealing strip (90) being fixedly arranged at an end of the inner ring enclosure plate (11); An outer ring sealing strip (100), the outer ring sealing strip (100) being fixedly arranged at an end of the outer ring enclosure plate (12); A scraping brush assembly, wherein the scraping brush assembly is used for scraping the cement floor; A telescopic mechanism (20), the telescopic mechanism (20) being arranged on the suction cup seat (10), and the telescopic mechanism (20) being used to drive the scraping brush assembly to retract into the vacuum chamber (13) or to extend out of the vacuum chamber (13).

2. The vacuum suction cup capable of being adsorbed on a cement floor underwater according to claim 1, characterized in that: The scraping brush assembly comprises a central axis (30), a brush seat (40) and an unfolding member (50); the telescopic mechanism (20) is connected to the central axis (30); two brush seats (40) are provided, and bristles (42) are respectively provided on the two brush seats (40); the unfolding member (50) is provided on the central axis (30) and connected to the two brush seats (40); the unfolding member (50) is used to drive the two brush seats (40) to move towards or away from each other.

3. The vacuum suction cup capable of being adsorbed on a cement floor underwater according to claim 2, characterized in that: The unfolding member (50) comprises a first rotating shaft (51), a first worm gear (52) and a driving rod (53); the first rotating shaft (51) is rotatably mounted on the central shaft (30); a first gear (511) and a first worm wheel (512) are provided on the first rotating shaft (51); a tooth row (41) meshing with the first gear (511) is provided on the brush holder (40); the first worm gear (52) is rotatably mounted on the central shaft (30) and meshing with the first worm wheel (512); and the driving rod (53) is rotatably mounted on the central shaft (30) and connected to the first worm gear (52).

4. The vacuum suction cup capable of being adsorbed on a cement floor underwater according to claim 2, characterized in that: The telescopic mechanism (20) comprises a telescopic seat (21) and a screw rod (22); the suction cup seat (10) is provided with a guide groove (17); the telescopic seat (21) is slidably arranged in the guide groove (17); the central axis (30) is rotatably arranged on the telescopic seat (21); the telescopic seat (21) is provided with a screw sleeve (211); the screw rod (22) is rotatably arranged on the suction cup seat (10) and is threadedly connected to the screw sleeve (211).

5. The vacuum suction cup capable of being adsorbed on a cement floor underwater according to claim 2, characterized in that: The scraping brush assembly further comprises a support (60), wherein the support (60) is rotatably disposed on an end of the central axis (30) close to the brush holder (40), and a pointed cone (61) capable of standing on a cement floor is provided on the support (60).

6. The vacuum suction cup capable of being adsorbed on a cement floor underwater according to claim 1, characterized in that: It also includes a valve component and an opening and closing drive component (70), wherein the valve component is used to block or connect the vacuum chamber (13) and the glue injection chamber (14), and the opening and closing drive component (70) is connected to the valve component. When the glue injection chamber (14) is at atmospheric pressure, the valve component connects the vacuum chamber (13) and the glue injection chamber (14); when the glue injection chamber (14) is at vacuum, the opening and closing drive component (70) can drive the valve component to block the vacuum chamber (13) and the glue injection chamber (14).

7. The vacuum suction cup capable of being adsorbed on a cement floor underwater according to claim 6, characterized in that: The valve component comprises a valve core (80), an air hole (111) is provided on the inner ring enclosure (11), the valve core (80) is rotatably arranged on the inner ring enclosure (11), the valve core (80) is provided with a valve hole (81) that can overlap or stagger with the air hole (111), and the opening and closing drive component (70) is connected to the valve core (80) and can drive the valve core (80) to rotate.

8. The vacuum suction cup capable of being adsorbed on a cement floor underwater according to claim 7, characterized in that: The opening and closing driving member (70) comprises an elastic member, a piston (72) and a linkage member. A cylinder (121) which is in communication with the injection cavity (14) is provided on the outer ring enclosure (12). The piston (72) is slidably arranged in the cylinder (121). The elastic member is used to provide an elastic force for pushing the piston (72) to move toward the outside of the outer ring enclosure (12). The piston (72) is connected to the valve core (80) through a linkage member. When the piston (72) slides along the cylinder (121), the valve core (80) can be driven to rotate.

9. The vacuum suction cup capable of being adsorbed on a cement floor underwater according to claim 8, characterized in that: The linkage member comprises a second rotating shaft (73) and a second worm (74); a gear ring (82) is provided on the valve core (80); a rack (723) is provided on the piston (72); the second rotating shaft (73) and the second worm (74) are rotatably arranged on the inner ring enclosure plate (11); the second rotating shaft (73) is provided with a second gear (731) meshing with the gear ring (82) and a second worm wheel (732) meshing with the second worm (74); and the second worm (74) is provided with a third gear (741) meshing with the rack (723).

10. A method for using a vacuum suction cup that can be adsorbed on a cement floor underwater, characterized in that: Using the vacuum suction cup according to any one of claims 1 to 9 comprises the following steps: S1, placing the vacuum suction cup at a predetermined position so that the inner ring sealing strip (90) and the outer ring sealing strip (100) are close to but not in contact with the cement floor; S2, driving the scraping brush assembly to extend out of the vacuum chamber (13) through the telescopic mechanism (20), supporting the brush assembly on the cement floor using the pointed cone (61) on the support (60), starting the electric tool to drive the central shaft (30), the brush holder (40) and the bristles (42) to rotate, and scraping and cleaning the cement floor in contact with the inner ring sealing strip (90) to remove pumice, mud and other debris on the surface; S3, after the cleaning is completed, the two brush holders (40) are driven to move towards each other through the unfolding member (50), so that the brush holders (40) are contracted and closed, and then the scraping brush assembly is driven to be retracted into the vacuum chamber (13) through the telescopic mechanism (20), so as to avoid interference with the subsequent adsorption process; S4, adjusting the position of the suction cup seat (10) by means of the telescopic mechanism (20) so that the inner ring sealing strip (90) and the outer ring sealing strip (100) are closely attached to the cleaned cement floor, and starting the vacuum generating device to evacuate the vacuum chamber (13) and the glue injection chamber (14) through the vacuum port (15) until the insides of both chambers reach a vacuum state; S5. When a vacuum is formed inside the glue injection chamber (14), the atmospheric pressure inside the glue injection chamber (14) decreases, and the piston (72) overcomes the resistance of the elastic member under the action of the external atmospheric pressure and moves toward the inside of the glue injection chamber (14), and drives the valve core (80) to rotate through the linkage member, thereby sealing the connection between the vacuum chamber (13) and the glue injection chamber (14), and maintaining the vacuum state of the vacuum chamber (13); S6, injecting sealant into the injection cavity (14) through the injection port (16) to fill the gap between the outer ring sealing strip (100) and the cement floor to further improve the sealing performance. After the injection is completed, wait for the sealant to solidify, confirm the adsorption effect of the vacuum suction cup, and then fix the water retaining plate on the suction cup seat (10) to complete the protection of the cement floor of the tail bank of the stilling pool; S7. When it is necessary to release the adsorption, the atmospheric pressure in the vacuum chamber (13) is restored through the vacuum port (15), and finally the suction cup seat (10) is lifted from the cement floor through the telescopic mechanism (20), thereby completing the removal of the vacuum suction cup.

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