A device for detecting the setting state of concrete during underwater pouring

Abstract

The present invention discloses a device for detecting the setting state of concrete at an underwater pouring site, and relates to the technical field of concrete pouring quality detection. The device comprises a mounting plate, wherein a movable adjustment component is installed in the mounting plate, baffles are installed at both ends of the rear side of the mounting plate via the movable adjustment component, an adjustment fixing mechanism is installed at the four corners of the rear side of the baffle via a connecting rod, a sealing sampling mechanism is installed at the middle position of the rear side of the mounting plate via a connecting rod, and a pushing component is installed at the rear side of the mounting plate, and the pushing component is used to adjust the position of the adjustment block. The device for detecting the setting state of concrete at an underwater pouring site can be adjusted according to underwater buildings of different diameters, and the mounting plate can be fixed to facilitate divers to drill holes and take samples on the surface of the building, while preventing water from entering, avoiding contact between the concrete sample core and water, and improving the accuracy of the detection results.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pouring quality detection, in particular to a device for detecting the setting state of underwater pouring site concrete. Background Art

[0002] When pouring concrete structures underwater, it is necessary to test the setting state of the concrete to determine the demoulding time. This is especially true for underwater construction projects such as bridges, docks, and submarine tunnels. The setting state of the concrete needs to be tested in the underwater area to ensure that demoulding can be carried out in time for subsequent construction and to ensure construction quality.

[0003] The existing method of sampling when testing the setting state of concrete at underwater concrete pouring sites is for professional divers to first dive into the water, and then use an underwater drill in conjunction with a positioning mechanism to drill holes on the surface of the pier to take out concrete core samples. However, when sampling underwater concrete, the existing device for detecting the setting state of concrete at underwater pouring sites is not convenient for stable positioning and drilling in areas of piers of different specifications. Due to the different diameters and shapes of different piers, the areas and contact surfaces during positioning are different, and there is a lack of adaptability, which makes it easy for staff to make deviations during operation. At the same time, since the sampling is done by drilling underwater, the concrete sample core will come into contact with water during the sampling process, which can easily lead to the test results being inconsistent with the actual setting state, making it difficult to accurately judge the subsequent construction time.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original underwater pouring site concrete setting state detection device. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for detecting the setting state of underwater concrete pouring in situ, so as to solve the problem raised in the above background technology that it is inconvenient to perform stable positioning drilling in the areas of piers of different specifications, and at the same time, it is impossible to avoid the contact of the obtained concrete sample core with water.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A device for detecting the setting state of concrete in an underwater pouring site comprises a mounting plate, a movable adjustment assembly being mounted within the mounting plate, baffles being mounted on both ends of the rear side of the mounting plate via the movable adjustment assembly, adjustment and fixing mechanisms being mounted at the four corners of the rear side of the baffles via connecting rods, and a sealed sampling mechanism being mounted in the middle of the rear side of the mounting plate via the connecting rod;

[0008] The adjusting and fixing mechanism includes a device block, which is fixedly mounted on the rear side of the baffle through a connecting rod, an adjusting block is installed in the middle cavity of the device block through a sliding block limiter, a sealing cylinder is installed inside the adjusting block through a rotating rod, and one end of the rotating rod passing through the bottom of the adjusting block is sleeved with a gear A, one side of the gear A is engaged with a rack A, and the rack A is fixed to the inner wall of the device block, a rubber suction cup is fixedly connected to the rear side of the sealing cylinder, and a pushing assembly is installed on the rear side of the mounting plate, and the pushing assembly is used to adjust the position of the adjusting block.

[0009] Preferably, the movable adjustment component includes a driving bevel gear, which is installed inside the mounting plate through a waterproof motor, and driven bevel gears are meshed and connected on both sides of the tooth surface of the driving bevel gear. A screw is fixedly installed on one side of the driven bevel gear, and the screw thread sleeve is provided with a movable mounting block, and the movable mounting block slides in a limited position in a sliding groove opened on the rear side of the mounting plate.

[0010] Preferably, the pushing assembly includes a push rod, which is fixedly mounted on one end of the front side of the adjusting block. The front end of the push rod is abutted against an inclined slider, which is fixed on the rear side of the mounting plate. The inclined slider is staggered with the sliding groove, and is used to push the push rod to move longitudinally.

[0011] Preferably, the sealing sampling mechanism includes a resistance cylinder, which is fixed to the middle position of the rear side of the mounting plate by a connecting rod, a driving gear is installed in the resistance cylinder through a driving motor, and a driven gear is meshed with the middle position of the resistance cylinder through the driving gear, and an arc-shaped through-groove is provided at the upper and lower ends of the driven gear, a sealing plate is installed in the arc-shaped through-groove through a sliding rod, a drainage assembly is installed at the bottom end of the rear side of the sealing plate, a rubber gasket is installed on the rear side of the resistance cylinder through a sliding ring limiter, and the arc-shaped through-groove drives the sealing plate to move vertically through the sliding rod when following the rotation of the driven gear.

[0012] Preferably, the drainage assembly includes a drainage cylinder, which is installed on the rear side of the sealing plate through a fixed rod. A piston is slidably installed inside the drainage cylinder, and a threaded rod is installed at the bottom of the piston. The threaded rod extends out of the drainage cylinder and is threadedly connected to a gear B on the periphery. The gear B is installed at the outer end of the drainage cylinder through a bearing. A through groove is provided at the lower end of the sliding ring, and a rack B is fixedly connected to the inner wall of the through groove, and the rack B is meshed with the gear B.

[0013] Preferably, a vacuum pump is installed on the top of the device block, and the vacuum pump is connected to the front side of the sealing cylinder through a hose.

[0014] Preferably, a sampling drill bit is installed on the front side of the mounting plate, and the rear side of the sampling drill bit extends through the mounting plate to the inside of the abutment cylinder. An electric drill is detachably installed on the front side of the sampling drill bit through a connecting port.

[0015] Preferably, a plurality of rows of water inlet holes are opened circumferentially on the top side wall of the drainage cylinder, and each row of water inlet holes is vertically evenly spaced. A receiving groove is provided at the lower end of the inner side of the resistance cylinder corresponding to the drainage cylinder, and the drainage cylinder slides in the receiving groove as the sealing plate moves.

[0016] Preferably, the middle parts of the interference cylinder, the driven gear, the sliding ring and the rubber gasket are all provided with a cavity for the sampling drill bit to pass through.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with a device block, a sliding block, an adjustment block, a rotating rod, a sealing cylinder, a gear A, a rack A, a rubber suction cup, a pushing assembly and a movable adjustment assembly. The movable adjustment assembly can adjust the position of the device block according to the diameter of the sampling building. At the same time, the pushing assembly pushes the adjustment block to move toward the rear end, thereby causing the gear A to rotate on the rack A, driving the sealing cylinder to rotate, and adjusting the angle of the rubber suction cup so that the rubber suction cup can fit the surface of the sampling pier. The vacuum pump is used to fix the mounting plate, making it convenient for divers to drill and sample the surface of the pier. At the same time, the device can be adjusted according to the diameter of different piers to ensure the stability of the drilling direction during fixation and improve the stability and accuracy of the drilling.

[0019] 2. The present invention is provided with a resistance cylinder, a driving gear, a driven gear, an arc-shaped through-groove, a sealing plate, a sliding ring, a rubber gasket and a drainage assembly. The rubber gasket on the rear side of the resistance cylinder is used to resist the sampling building surface, so that the internal space of the resistance cylinder is in a sealed state, and at the same time, the drainage assembly is used to discharge the water in the internal chamber of the resistance cylinder. Then, the driven gear is driven to rotate by the driving gear, and the sliding rod is used to slide in the arc-shaped through-groove to open the sealing plate to both sides. Finally, sampling is carried out through the sampling drill bit. After the sampling is completed, the sampling drill bit is retracted into the resistance cylinder, and the sealing plate is closed to prevent water from entering, thereby effectively avoiding the contact between the obtained concrete sample core and water, improving the accuracy of the detection result, and ensuring that the next construction time can be accurately judged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic structural diagram of the rear side of the mounting plate in the present invention;

[0022] Figure 3 Schematic diagram of the structure of the movable adjustment component in the present invention;

[0023] Figure 4 It is a structural schematic diagram of the adjusting and fixing mechanism in the present invention;

[0024] Figure 5 Schematic diagram of the top view of the adjusting and fixing mechanism of the present invention;

[0025] Figure 6 It is a partial front view structural diagram of the adjusting and fixing mechanism in the present invention;

[0026] Figure 7 It is a structural diagram of some parts of the adjusting and fixing mechanism in the present invention;

[0027] Figure 8 Schematic cross-section of the sealed sampling mechanism of the present invention;

[0028] Figure 9 It is a structural diagram of some parts of the sealing sampling mechanism of the present invention;

[0029] Figure 10 It is a partial enlarged schematic diagram of structure A of the present invention;

[0030] Figure 11 It is a top view of the internal structure of the through-tank body in the present invention.

[0031] In the figure: 1. Mounting plate; 21. Driving bevel gear; 22. Driven bevel gear; 23. Screw rod; 24. Movable mounting block; 25. Sliding groove; 31. Device block; 32. Sliding block; 33. Adjusting block; 34. Rotating rod; 35. Sealing cylinder; 36. Gear A; 37. Rack A; 38. Rubber suction cup; 391. Push rod; 392. Tilted slider; 4. Baffle; 51. Contact cylinder; 52. Driving gear; 53. Driven gear; 54. Arc-shaped through-groove; 55. Sealing plate; 561. Drain cylinder; 562. Fixed rod; 563. Piston; 564. Threaded rod; 565. Gear B; 566. Through-groove body; 567. Rack B; 57. Sliding ring; 58. Rubber gasket; 6. Vacuum pump; 7. Sampling drill bit; 8. Electric drill; 9. Water inlet hole; 10. Accommodating groove. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1-11The embodiment of the present invention provides a device for detecting the setting state of concrete in an underwater pouring site, comprising a mounting plate 1, a movable adjustment assembly mounted in the mounting plate 1, baffles 4 mounted on both ends of the rear side of the mounting plate 1 via the movable adjustment assembly, adjustment and fixing mechanisms mounted at the four corners of the rear side of the baffles 4 via connecting rods, and a sealing sampling mechanism mounted in the middle position of the rear side of the mounting plate 1 via a connecting rod;

[0034] The adjustment and fixing mechanism includes a device block 31, which is fixedly mounted on the rear side of the baffle 4 through a connecting rod. An adjustment block 33 is installed in the central cavity of the device block 31 through a sliding block 32. A sealing cylinder 35 is installed inside the adjustment block 33 through a rotating rod 34. One end of the rotating rod 34 passes through the bottom of the adjustment block 33 and is sleeved with a gear A36. A rack A37 is engaged on one side of the gear A36. The rack A37 is fixed to the inner wall of the device block 31. A rubber suction cup 38 is fixedly connected to the rear side of the sealing cylinder 35. A pushing assembly is installed on the rear side of the mounting plate 1. The pushing assembly is used to adjust the position of the adjustment block 33. A vacuum pump 6 is installed on the top of the device block 31. The vacuum pump 6 is connected to the front side of the sealing cylinder 35 through a hose. The pushing assembly pushes the adjustment block 33 to move, thereby driving the gear A36 to rotate on the rack A37, so that the angle of the sealing cylinder 35 can be changed and fit into the surface of the underwater building. The air in the sealing cylinder 35 is then sucked out by the vacuum pump 6, thereby fixing the rubber suction cup 38 to the surface of the underwater building.

[0035] The movable adjustment component includes a driving bevel gear 21, which is installed inside the mounting plate 1 through a waterproof motor. The tooth surface of the driving bevel gear 21 is meshed with driven bevel gears 22 on both sides. A screw rod 23 is fixedly installed on one side of the driven bevel gear 22. The screw rod 23 is threadedly sleeved with a movable mounting block 24. The movable mounting block 24 slides within a sliding groove 25 opened on the rear side of the mounting plate 1; the waterproof motor drives the driving bevel gear 21 to rotate, driving the driven bevel gear 22 to rotate, so that the screw rods 23 on both sides rotate, which can drive the device block 31 to move to both sides.

[0036] The pushing assembly includes a push rod 391, which is fixedly installed at one end of the front side of the adjustment block 33. The front end of the push rod 391 is abutted against an inclined slider 392. The inclined slider 392 is fixed to the rear side of the mounting plate 1. The inclined slider 392 is staggered with the sliding groove 25. The inclined slider 392 is used to push the push rod 391 to move longitudinally, so that the push rod 391 pushes the adjustment block 33 to slide in the device block 31.

[0037] The sealing sampling mechanism includes a resistance cylinder 51, which is fixed to the middle position of the rear side of the mounting plate 1 through a connecting rod. A driving gear 52 is installed in the resistance cylinder 51 through a driving motor. A driven gear 53 is meshed with the driving gear 52 in the middle position of the resistance cylinder 51. Arc-shaped through-grooves 54 are provided at the upper and lower ends of the driven gear 53. A sealing plate 55 is installed in the arc-shaped through-grooves 54 through a sliding rod. A drainage assembly is installed at the bottom end of the rear side of the sealing plate 55. A rubber gasket 58 is installed on the rear side of the resistance cylinder 51 through a sliding ring 57. A cavity for the sampling drill bit 7 to pass through is provided in the middle of the resistance cylinder 51, the driven gear 53, the sliding ring 57 and the rubber gasket 58. When the arc-shaped through-grooves 54 rotate with the driven gear 53, the sealing plate 55 is driven to move vertically through the sliding rod, thereby opening and connecting the various cavities inside the resistance cylinder 51 for the sampling drill bit 7 to pass through.

[0038] The drainage assembly includes a drainage cylinder 561, which is installed on the rear side of the sealing plate 55 through a fixed rod 562. A piston 563 is slidably installed inside the drainage cylinder 561, and a threaded rod 564 is installed at the bottom of the piston 563. The threaded rod 564 extends out of the drainage cylinder 561 and is threadedly connected to the outer periphery of the threaded rod 564 and is connected to a gear B565. The gear B565 is installed at the outer end of the drainage cylinder 561 through a bearing. A through groove 566 is provided at the lower end of the sliding ring 57. A rack B567 is fixedly connected to the inner wall of the through groove 566. The rack B567 is meshed with the gear B565. Several rows of water inlet holes 9 are circumferentially opened on the side wall of the top end of the drainage cylinder 561. Each row of water inlet holes 9 is vertically evenly spaced. A accommodating groove 10 is provided at the lower end of the inner side of the interference cylinder 51 corresponding to the drainage cylinder 561. The drainage cylinder 561 slides in the accommodating groove 10 as the sealing plate 55 moves to prevent the sampling drill bit 7 from colliding with the drainage cylinder 561 when penetrating.

[0039] A sampling drill bit 7 is installed on the front side of the mounting plate 1 , and the rear side of the sampling drill bit 7 passes through the mounting plate 1 and extends to the inside of the abutment cylinder 51 . An electric drill 8 is detachably installed on the front side of the sampling drill bit 7 through a connecting port.

[0040] Working principle: When using the underwater pouring site concrete setting state detection device, the diver will first dive into the water and bring the device to the sampling site by the handle, observe the diameter of the sampling building (sampling pier), and use the waterproof motor to drive the active bevel gear 21 to rotate, driving the driven bevel gear 22 to rotate, so that the screw rods 23 on both sides rotate, driving the device block 31 to move to both sides, and at the same time, the front side of the push rod 391 will slide on the inclined surface of the inclined slider 392 as the device block 31 moves, causing the push rod 391 to extend to the rear side, pushing the adjustment block 33 The device moves within the device block 31, causing the gear A36 at the bottom end of the rotating rod 34 to rotate under the action of the rack A37, driving the rotating rod 34 to rotate. The angle of the sealing cylinder 35 slowly changes with the rotation of the rotating rod 34, thereby making the rubber suction cup 38 on the rear side of the sealing cylinder 35 closely fit the surface of the sampling building. Finally, the air in the sealing cylinder 35 is extracted by the vacuum pump 6, so that the rubber suction cup 38 is firmly adsorbed on the surface of the sampling building, thereby fixing the device. The vacuum pump 6 adopts a small rotary vane vacuum pump with a power of 0.85 kW and a flow rate of 5 to 30 L / s.

[0041] At this time, the rubber gasket 58 at the front end of the resistance cylinder 51 will resist the surface of the sampling building and squeeze out part of the water in the resistance cylinder 51. At the same time, as the rubber gasket 58 resists, the sliding ring 57 moves into the resistance cylinder 51, driving the rack B567 to move, thereby driving the gear B565 to rotate, so that the threaded rod 564 pulls the piston 563 to slide downward in the drainage cylinder 561, and the remaining water in the front chamber of the resistance cylinder 51 is sucked into the drainage cylinder 561 through the water inlet hole 9 at the top of the drainage cylinder 561. Then the driving motor drives the driving gear 52 to rotate, driving the driven gear 53 to rotate, so that the sliding rod slides in the arc-shaped through groove 54 on the surface of the driven gear 53. , causing the sealing plate 55 on the rear side of the driven gear 53 to move upward and downward, while driving the drainage cylinder 561 to slide downward into the accommodating groove 10, thereby connecting the front and rear chambers of the resistance cylinder 51. The sampling drill bit 7 is driven by the electric drill 8 to penetrate the resistance cylinder 51 to drill and sample the underwater poured building. After the sampling is completed, the sampling drill bit 7 will carry the sample back to the chamber on the front side of the sealing plate 55. At the same time, the driving motor drives the driving gear 52 to rotate in the opposite direction, causing the sealing plate 55 to move inward until it closes. Finally, the vacuum pump 6 is turned off to release the fixation of the device. The diver takes the sample back to the laboratory for analysis to obtain the data on the coagulation state of the concrete underwater.

[0042] In the present invention, the module of gear A36 is 2, the number of teeth is 40, the distribution pattern of rack A37 is adapted to gear A36, the module of driving gear 52 is 4, the number of teeth is 18, the module of driven gear 53 is 4, the number of teeth is 24, all of which are made of aluminum alloy. The aluminum oxide on their surface can effectively prevent the gear surface from rusting during underwater operation. The main function of gear A36 is that when the device block 31 moves laterally, it cooperates with the inclined surface of the inclined slider 392 to drive the push rod 391 to move longitudinally, and then drives the adjustment block 33 to drive the sealing cylinder 35 to move longitudinally, so that when responding to a thicker pier column, the sealing cylinder 35 can move to the outer area of the pier column and engage with the rack A37 through the gear A36 to drive the sealing cylinder 35 to rotate synchronously, that is, the adjustment block 33 drives the longitudinal movement of the sealing cylinder 35, and the transmission of the gear A36 under this module drives the sealing cylinder 35 to adjust the corresponding angle;

[0043] The relationship between the longitudinal movement distance of the adjustment block 33 and the lateral movement distance of the device block 31 is determined by the bevel angle of the inclined slider 392. Based on the use of the gear A36 with a determined module and number of teeth, the bevel angle of the inclined slider 392 can be adjusted and confirmed through actual operation experiments. The inclined slider 392 can be fixed to the mounting plate 1 by bolts and other components, and is very convenient to replace. Therefore, this device can be very conveniently applied to piers of different specifications.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for detecting the setting state of underwater concrete pouring, characterized by: The invention comprises a mounting plate (1), wherein a movable adjustment component is installed in the mounting plate (1), baffles (4) are installed at both ends of the rear side of the mounting plate (1) through the movable adjustment component, and an adjustment fixing mechanism is installed at the four corners of the rear side of the baffle (4) through a connecting rod, and a sealing sampling mechanism is installed at the middle position of the rear side of the mounting plate (1) through a connecting rod, and the sealing sampling mechanism comprises a contact cylinder (51), and the contact cylinder (51) is fixed to the middle position of the rear side of the mounting plate (1) through a connecting rod, and a driving gear (52) is installed in the contact cylinder (51) through a driving motor, and a driven gear (53) is meshed and connected in the middle position of the contact cylinder (51) through the driving gear (52), and an arc-shaped through-groove (54) is provided at the upper and lower ends of the driven gear (53), and a sealing plate (55) is installed in the arc-shaped through-groove (54) through a sliding rod, and a drainage component is installed at the bottom end of the rear side of the sealing plate (55), and the contact cylinder (51) is fixed to the middle position of the rear side of the mounting plate (1) through a connecting rod. 1) A rubber gasket (58) is installed on the rear side through a sliding ring (57) to limit the position. The arc-shaped through-groove (54) drives the sealing plate (55) to move vertically through the sliding rod when following the rotation of the driven gear (53). The drainage assembly includes a drainage cylinder (561). The drainage cylinder (561) is installed on the rear side of the sealing plate (55) through a fixed rod (562). A piston (563) is slidably installed inside the drainage cylinder (561). A threaded rod (564) is installed at the bottom of the piston (563). The threaded rod (564) extends out of the drainage cylinder (561) and is threadedly connected to a gear B (565) on the outer end. The gear B (565) is installed on the outer end of the drainage cylinder (561) through a bearing. A through-groove (566) is opened at the lower end of the sliding ring (57). A rack B (567) is fixedly connected to the inner side wall of the through-groove (566). The rack B (567) is meshed with the gear B (565). The adjusting and fixing mechanism comprises a device block (31), wherein the device block (31) is fixedly mounted on the rear side of the baffle (4) via a connecting rod, an adjusting block (33) is installed in the middle cavity of the device block (31) via a sliding block (32), a sealing cylinder (35) is installed inside the adjusting block (33) via a rotating rod (34), one end of the rotating rod (34) passing through the bottom of the adjusting block (33) is sleeved with a gear A (36), one side of the gear A (36) is meshed with a rack A (37), and the rack A (37) is fixed to the inner wall of the device block (31), a rubber suction cup (38) is fixedly connected to the rear side of the sealing cylinder (35), and a pushing assembly is installed on the rear side of the mounting plate (1), and the pushing assembly is used to adjust the position of the adjusting block (33).

2. The device for detecting the setting state of underwater concrete pouring according to claim 1, characterized in that: The movable adjustment component comprises an active bevel gear (21), the active bevel gear (21) being mounted inside the mounting plate (1) via a waterproof motor, the tooth surfaces of the active bevel gear (21) being meshedly connected with driven bevel gears (22), one side of the driven bevel gear (22) being fixedly mounted with a screw rod (23), the screw rod (23) being threadedly sleeved with a movable mounting block (24), the movable mounting block (24) being limitedly slidable in a sliding groove (25) provided on the rear side of the mounting plate (1).

3. The device for detecting the setting state of underwater concrete pouring according to claim 2, characterized in that: The pushing assembly includes a push rod (391), the push rod (391) is fixedly mounted on one end of the front side of the adjusting block (33), the front end of the push rod (391) is provided with an inclined slider (392), the inclined slider (392) is fixed to the rear side of the mounting plate (1), the inclined slider (392) is offset from the sliding groove (25), and the inclined slider (392) is used to push the push rod (391) to move longitudinally.

4. The device for detecting the setting state of underwater concrete pouring according to claim 1, characterized in that: A vacuum pump (6) is installed on the top of the device block (31), and the vacuum pump (6) is connected to the front side of the sealing cylinder (35) through a hose.

5. The device for detecting the setting state of underwater concrete pouring according to claim 1, characterized in that: A sampling drill bit (7) is installed on the front side of the mounting plate (1), and the rear side of the sampling drill bit (7) passes through the mounting plate (1) and extends into the interior of the abutment cylinder (51). An electric drill (8) is detachably installed on the front side of the sampling drill bit (7) through a connecting port.

6. The device for detecting the setting state of underwater concrete pouring according to claim 1, characterized in that: A plurality of rows of water inlet holes (9) are provided on the circumferential side wall of the top end of the drainage cylinder (561), and each row of water inlet holes (9) is vertically and evenly spaced. A receiving groove (10) is provided at the lower end of the inner portion of the resistance cylinder (51) corresponding to the drainage cylinder (561), and the drainage cylinder (561) slides in the receiving groove (10) as the sealing plate (55) moves.

7. The device for detecting the setting state of underwater concrete pouring according to claim 1, characterized in that: The middle parts of the abutment cylinder (51), the driven gear (53), the sliding ring (57) and the rubber washer (58) are all provided with a cavity for the sampling drill bit (7) to pass through.

Images