Basement dewatering well plugging device and system

Abstract

The utility model provides a basement dewatering well plugging device and system which are used for solving the problem that in the prior art, a dewatering well is difficult to seal completely in an area with much underground water. A first sealing disc, an elastic sealing piece, a second sealing disc, a sealing piece transmission mechanism and a blocking mechanism are arranged; when the well mouth sealing device is used, the elastic sealing piece is driven by the sealing piece transmission mechanism to generate elastic deformation, so that the elastic sealing piece abuts against the inner side wall of the well casing, the interior of the dewatering well is blocked in a segmented mode, and the amount of underground water located at a well mouth is reduced when the well mouth sealing device seals the well mouth of the dewatering well; and the blocking mechanism is arranged, after the sealing piece transmission mechanism moves in place, the elastic sealing piece can be kept abutting against the inner side wall of the well casing, and then the blocking effect of the sealing device is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of precipitation well blocking, in particular to a basement precipitation well blocking device and system. Background Art

[0002] When constructing a basement with a lot of groundwater, multiple dewatering wells will be built in the construction area. During the construction process, water pumps will be used to continuously extract groundwater from the dewatering wells to ensure that the remaining construction areas except the areas where the dewatering wells are built can be constructed smoothly. After the construction of the remaining construction areas is completed, the dewatering wells will be sealed to complete the construction of the entire basement.

[0003] The existing solution for sealing precipitation wells involves first removing the water pump from the precipitation well during construction, then filling the precipitation well with building materials such as gravel, and then sealing the wellhead with sealing materials such as concrete to complete the sealing of the precipitation well. However, with this solution, since the basement foundation will continuously seep water into the precipitation well, during the process of filling the precipitation well with building materials such as gravel, water will gather at the wellhead of the precipitation well. When the wellhead is later sealed with sealing materials such as concrete, the water pressure at the wellhead will increase, causing water to leak out of the precipitation well from the connection between the concrete and the sealing materials and the wellhead, resulting in a constant gap between the wellhead and the sealing material, making it difficult to completely seal the precipitation well. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a basement dewatering well sealing device and system, which is used to solve the problem in the prior art that dewatering wells are difficult to completely seal in areas with a lot of groundwater.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a basement dewatering well sealing device for sealing the well pipe of the dewatering well, which includes: a first sealing disk, an elastic seal, a second sealing disk, a seal transmission mechanism and a blocking mechanism; the elastic seal is arranged between the first sealing disk and the second sealing disk, and the seal transmission mechanism is slidably arranged on the first sealing disk, and is used to drive the elastic seal to undergo elastic deformation so that the elastic seal abuts against the inner wall of the well pipe of the dewatering well to seal the well pipe; the blocking mechanism is arranged on the second sealing disk, and when the elastic seal abuts against the inner wall of the well pipe, the blocking mechanism is used to limit the seal transmission mechanism to maintain the abutment between the elastic seal and the inner wall of the well pipe of the dewatering well.

[0006] Optionally, the sealing transmission mechanism includes a plurality of first transmission components, a first transmission disk, a plurality of second transmission components, a second transmission disk and a transmission shaft component; the first sealing disk is provided with a plurality of guide grooves for guiding the movement of the first transmission component and the second transmission component; the guide grooves and the first transmission component and the second transmission component are arranged in a one-to-one correspondence; the first transmission component and the first transmission disk are rotationally connected, and the second transmission component and the second transmission disk are rotationally connected; the transmission shaft assembly is used to drive the first transmission disk and the second transmission disk to move, and then drive the first transmission component and the second transmission component to abut against the side of the elastic seal away from the well pipe, and then drive the elastic seal to undergo elastic deformation; the blocking mechanism is used to limit the transmission shaft assembly.

[0007] Optionally, the first group of transmission components includes a first connecting rod, a first slider and a first abutment; one end of the first connecting rod is rotatably connected to the first transmission disk, and the other end is rotatably connected to the first slider, the first slider is arranged in a guide groove, and the first abutment is arranged on the first slider; the second group of transmission components includes a second connecting rod, a second slider and a second abutment; one end of the second connecting rod is rotatably connected to the second transmission disk, and the other end is rotatably connected to the second slider, the second slider is arranged in the guide groove, and the second abutment is arranged on the second slider; the first abutment and the second abutment are used to abut against the elastic seal; when the elastic seal abuts against the side wall of the well pipe, multiple first abutments and multiple second abutments form a circular ring shape.

[0008] Optionally, the guide groove includes a first sub-guide groove and two second sub-guide grooves; the two second sub-guide grooves are respectively arranged on one of the two side walls opposite to each other of the first sub-guide groove; two protrusions are respectively provided on the first slider and the second slider, and the protrusions are arranged one-to-one corresponding to the second sub-guide grooves.

[0009] Optionally, the first sealing disk includes an avoidance hole and a blocking piece, the avoidance hole is connected to the plurality of guide grooves, and the blocking piece is used to block the avoidance hole.

[0010] Optionally, the transmission shaft assembly includes a first transmission shaft, a second transmission shaft and a first elastic member; a first sliding groove is provided on the second transmission shaft, the center line of the first sliding groove coincides with the center axis of the second transmission shaft, the first elastic member is arranged in the first sliding groove, one end of which is connected to the bottom of the first sliding groove, and the other end is connected to the first transmission shaft; the first transmission shaft is partially arranged in the first sliding groove; a first through hole is provided on the second transmission disk, and one end of the first transmission shaft extending out of the first sliding groove passes through the first through hole and is connected to the first transmission disk; the second transmission shaft is provided with one end of the first sliding groove for connecting to the second transmission disk; the blocking mechanism is used to limit the second transmission shaft.

[0011] Optionally, a first guide hole is provided on the first transmission disk, the inner side wall of the first guide hole is inclined to the central axis of the first transmission disk, and a first guide portion is provided at one end of the first transmission shaft extending out of the first sliding groove, and the first guide portion is used to abut against the inner side wall of the first guide hole; and / or, the first through hole includes an expanded hole section and a straight line section, the side wall of the expanded hole section is inclined to the central axis of the second transmission disk, and a second guide portion is provided at one end of the second transmission shaft provided with the first sliding groove, and the second guide portion is used to connect with the expanded hole section.

[0012] Optionally, a plurality of second sliding grooves are provided on the outer surface of the second transmission shaft, and a limiting hole is provided at the bottom of the second sliding groove away from the connecting end of the second transmission shaft and the second transmission plate; a third through hole is provided on the second sealing plate for avoiding the first group of transmission components, the second group of transmission components and the transmission shaft assembly; the blocking mechanism includes a sealing cone, a plurality of second elastic members and a plurality of limiting columns; one end of the sealing cone is connected to the second sealing plate, and the other end is provided with a second through hole for the second transmission shaft to pass through; the sealing cone is also provided with a receiving cavity for accommodating the transmission shaft assembly, accommodating The cavity is connected to the second through hole; the inner side wall of the second through hole is provided with a plurality of mounting holes symmetrically arranged with the axis of the second through hole as the symmetry line, the limiting hole, the mounting hole, the second elastic member and the limiting column are arranged in a one-to-one correspondence, the limiting column part is arranged in the mounting hole, the second elastic member is arranged in the mounting hole, one end of the limiting column is connected to the bottom of the mounting hole, and the other end is connected to the limiting column, and the end of the limiting column extending out of the mounting hole is located in the second sliding groove; when the elastic sealing member abuts against the inner side wall of the well pipe, the end of the limiting column extending out of the mounting hole penetrates into the limiting hole, which is used to limit the second transmission shaft.

[0013] Optionally, the blocking mechanism further includes a sealing cover, and a connecting portion is provided on one end of the sealing cone away from the second sealing disk. The sealing cover is threadedly connected to the connecting portion for closing the second through hole.

[0014] On the other hand, the utility model also provides a basement dewatering well sealing system, including a basement dewatering well sealing device and a wellhead sealing device as described above, the basement dewatering well sealing device is used to seal the well pipe, and the wellhead sealing device is used to seal the wellhead.

[0015] As described above, the utility model provides a basement dewatering well sealing device and system, which has at least the following beneficial effects: by arranging a first sealing disk, an elastic seal, a second sealing disk, a seal transmission mechanism and a blocking mechanism; when in use, the elastic seal is elastically deformed by the drive of the seal transmission mechanism, thereby realizing the abutment between the elastic seal and the inner wall of the well pipe, thereby realizing the segmented sealing of the dewatering well, reducing the amount of groundwater located at the wellhead when the wellhead sealing device seals the wellhead of the dewatering well, thereby reducing the water pressure of the groundwater, making it easier for the wellhead sealing device to seal the wellhead of the dewatering well, and providing a blocking mechanism, which can maintain the abutment of the elastic seal against the inner wall of the well pipe after the seal transmission mechanism moves into place, thereby ensuring the sealing effect of the sealing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a structural schematic diagram of a basement dewatering well blocking device according to the present utility model.

[0017] Figure 2 Shown is a structural schematic diagram of a basement dewatering well blocking device of the present invention, in which the blocking mechanism is omitted.

[0018] Figure 3 It shows a schematic structural diagram of a basement dewatering well blocking device according to the present invention, omitting the blocking mechanism and the second sealing disk.

[0019] Figure 4 It shows a schematic structural diagram of a basement dewatering well blocking device according to the present invention, omitting the blocking mechanism, the first sealing disc, the second sealing disc and the elastic sealing member.

[0020] Figure 5 Shown is a structural schematic diagram of a sealing cone of a basement dewatering well blocking device according to the present invention.

[0021] Figure 6 Shown is a partial cross-sectional schematic diagram of a sealing cone of a basement dewatering well blocking device according to the present invention.

[0022] Figure 7 Shown is a structural schematic diagram of a first sealing disk of a basement dewatering well blocking device according to the present invention. DETAILED DESCRIPTION

[0023] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0024] Please refer to all the following drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the efficacy and purpose that can be achieved by this utility model, should still fall within the scope of the technical content disclosed by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.

[0025] The following embodiments are for illustration only and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0026] See also Figure 1 The utility model provides a basement dewatering well sealing device for sealing the well pipe of the dewatering well, which includes: a first sealing disk 1, an elastic seal 2, a second sealing disk 3, a sealing transmission mechanism and a blocking mechanism 5; the elastic seal 2 is arranged between the first sealing disk 1 and the second sealing disk 3, and the sealing transmission mechanism is slidably arranged on the first sealing disk 1, and is used to drive the elastic seal 2 to undergo elastic deformation so that the elastic seal 2 abuts against the inner wall of the well pipe of the dewatering well to seal the well pipe; the blocking mechanism 5 is arranged on the second sealing disk 3, and when the elastic seal 2 abuts against the inner wall of the well pipe, the blocking mechanism 5 is used to limit the sealing transmission mechanism to maintain the abutment of the elastic seal 2 with the inner wall of the well pipe of the dewatering well. The second sealing disc 3 is disposed on the first sealing disc 1, and an elastic seal 2 for sealing the well pipe is disposed between the first sealing disc 1 and the second sealing disc 3. The diameters of the first sealing disc 1, the second sealing disc 3, and the elastic seal 2 are less than or equal to the diameter of the well pipe, so that when sealing the precipitation well, the sealing device can be placed into the well pipe of the precipitation well. The elastic seal 2 can be an annular structure made of rubber or other elastic materials. The outer ring of the elastic seal 2 is used to abut the inner wall of the well pipe, the inner ring is used to connect to the seal transmission mechanism, and the remaining side surfaces are used to connect to the first sealing disc 1 and the second sealing disc 3.

[0027] During use, the number of plugging devices to be used is selected according to the depth of the different precipitation wells. For example, when the depth of the precipitation well is three meters, the number of plugging devices can be set to two for illustration. During actual construction, the precipitation well can be first filled with gravel and other building materials, so that the precipitation well is filled with a layer of gravel and other building materials of about one meter, and the gravel material is compacted with tools, and then the groundwater in the precipitation well is pumped out with a water pump. After the pumping is completed, the plugging device of this embodiment (defined as the first sealing device for the sake of convenience) is placed in the precipitation well, and the cylindrical tool is used to press the seal transmission mechanism downward, so that the seal transmission mechanism first abuts against the inner ring of the elastic seal 2, and then as the tool continues to press the seal transmission mechanism downward, the elastic seal 2 is elastically deformed, so that the elastic seal 2 abuts against the inner wall of the well pipe, and the part of the well pipe filled with gravel is sealed. At this time, the first plugging layer is formed between the first sealing device and the bottom of the well. At the same time, the blocking mechanism 5 automatically limits the seal transmission mechanism, so that the seal transmission mechanism can still maintain the elastic deformation of the elastic seal 2 after losing the downward force of the tool alignment, thereby ensuring that the elastic seal 2 always contacts the inner wall of the well pipe. After the construction of the first sealing layer is completed, the tool is removed, and the precipitation well is continuously filled with gravel and other building materials, so that the precipitation well continues to be filled with a layer of gravel and other building materials of about one meter. Then, the second sealing device is placed, and the elastic seal 2 of the second sealing device is brought into contact with the inner wall of the well pipe using the above method to form a second sealing layer. After the construction of the second sealing layer is completed, the precipitation well is continuously filled with gravel and other building materials until the gravel and other building materials are filled to the wellhead position, and then the wellhead is sealed using the wellhead sealing device, thereby completing the overall sealing construction of the precipitation well. It can be understood that in this embodiment, different numbers of sealing devices are selected according to the different depths of the precipitation well, and the precipitation well is divided into different sealing layers. The different sealing layers are sealed using the sealing devices of this embodiment. After sealing, the different sealing layers are prevented from infiltrating groundwater between the different sealing layers into other sealing layers due to the effect of the sealing devices, thereby reducing the amount of groundwater located at the wellhead when the wellhead sealing device seals the wellhead of the precipitation well, thereby reducing the water pressure of the groundwater, and facilitating the wellhead sealing device to seal the wellhead of the precipitation well.

[0028] See also Figure 1-6In one embodiment, the sealing transmission mechanism includes a plurality of first transmission components 41, a first transmission disk 42, a plurality of second transmission components 43, a second transmission disk 44 and a transmission shaft assembly 45; the first sealing disk 1 is provided with a plurality of guide grooves 11 for guiding the movement of the first transmission component 41 and the second transmission component 43; the guide grooves 11 and the first transmission component 41 and the second transmission component 43 are arranged in a one-to-one correspondence; the first transmission component and the first transmission disk are rotationally connected, and the second transmission component 43 and the second transmission disk 44 are rotationally connected; the transmission shaft assembly 45 is used to drive the first transmission disk 42 and the second transmission disk 44 to move, and then drive the first transmission component 41 and the second transmission component 43 to abut against the side of the elastic seal 2 away from the well pipe, and then drive the elastic seal 2 to undergo elastic deformation; the blocking mechanism 5 is used to limit the transmission shaft assembly 45.

[0029] In this embodiment, three of the first transmission components 41 and the second transmission components 43 can be respectively provided, and the corresponding guide grooves 11 can be set to six. When the sealing device is placed as a whole into the precipitation well, the transmission shaft component 45 is pressed downward by a tool to drive the first transmission component 41 and the second transmission component 43 to slide in the guide groove 11, thereby realizing the first transmission component 41 and the second transmission component 43 to cause the elastic seal 2 to undergo elastic deformation, so that the elastic seal 2 abuts against the inner wall of the well pipe.

[0030] The first group of transmission components includes a first connecting rod 411, a first slider 412 and a first abutment 413; one end of the first connecting rod 411 is rotatably connected to the first transmission disk 42, and the other end is rotatably connected to the first slider, the first slider 412 is arranged in the guide groove 11, and the first abutment 413 is arranged on the first slider 412; the second group of transmission components includes a second connecting rod 431, a second slider 432 and a second abutment 433; one end of the second connecting rod 431 is rotatably connected to the second transmission disk 44, and the other end is rotatably connected to the second slider, the second slider 432 is arranged in the guide groove 11, and the second abutment 433 is arranged on the second slider 432; the first abutment 413 and the second abutment 433 are used to abut against the elastic seal 2; when the elastic seal 2 abuts against the side wall of the well pipe, multiple first abutment 413 and multiple second abutment 433 form a circular ring shape. The first abutment 413 and the second abutment 433 can each be an arc-shaped structure, which is fixedly arranged on the corresponding slider. When the transmission shaft assembly 45 moves downward, it drives the first abutment 413 and the second abutment 433 to slide along the guide groove 11, thereby causing the first abutment 413 and the second abutment 433 to enclose and form a circular ring structure, so that the inner ring of the elastic seal 2 is evenly stressed, thereby ensuring that the elastic seal 2 is evenly stressed in the circumferential direction and has the same elastic deformation. In this embodiment, when not in operation, the second abutment 433 is located near the central axis of the first sealing disk 1, and the first abutment 413 is located away from the central axis of the first sealing disk 1. In addition, in order to enable the first abutting member 413 and the second abutting member 433 to enclose a circular ring structure, the transmission shaft assembly 45 can first drive the first abutting member 413 to move to abut against the elastic seal 2, and only after the first abutting member 413 causes the elastic seal 2 to be elastically deformed, the transmission shaft assembly 45 drives the second abutting member 433 to move to abut against the elastic seal 2. At this time, the transmission shaft assembly 45 can no longer drive the first abutting member 413 to move, and can still maintain the abutment between the first abutting member 413 and the elastic seal 2. When the second abutting member 433 moves to abut against the elastic seal 2, the blocking mechanism 5 limits the transmission assembly, thereby maintaining the abutment between the first abutting member 413 and the second abutting member 433 and the elastic seal 2.

[0031] See also Figure 7In one implementation, the guide groove 11 includes a first sub-guide groove 111 and two second sub-guide grooves 112. The two second sub-guide grooves 112 are respectively disposed on one of the two opposing side walls of the first sub-guide groove 111. The first slider 412 and the second slider 432 are respectively provided with two protrusions 4121, which correspond one-to-one with the second sub-guide grooves 112. The provision of the second sub-guide grooves 112 ensures that the first slider 412 and the second slider 432 slide within the first sub-guide groove 111 and prevents the first slider 412 and the second slider 432 from falling out of the first sub-guide groove 111.

[0032] In one implementation, the first sealing disk 1 includes a clearance hole and a blocking member 12. The clearance hole is connected to the multiple guide grooves 11, and the blocking member 12 is used to block the clearance hole. The clearance hole is located at the center of the first sealing disk 1. The blocking member 12 is a disc-shaped structure used to block the clearance hole. The arrangement of the clearance hole and the blocking member 12 not only facilitates the placement of the first and second sliders 412, 432 within the guide grooves 11 using the clearance hole, but also ensures that the first and second sliders 412, 432 can slide out of the clearance hole.

[0033] See also Figure 6 In one embodiment, the transmission shaft assembly 45 includes a first transmission shaft 451, a second transmission shaft 452 and a first elastic member 453; the second transmission shaft 452 is provided with a first sliding groove 4521, the center line of the first sliding groove 4521 coincides with the center axis of the second transmission shaft 452, the first elastic member 453 is arranged in the first sliding groove 4521, one end of which is connected to the bottom of the first sliding groove 4521, and the other end is connected to the first transmission shaft 451; the first transmission shaft 451 is partially arranged in the first sliding groove 4521; the second transmission disk 44 is provided with a first through hole 441, and one end of the first transmission shaft 451 extending out of the first sliding groove 4521 passes through the first through hole 441 and is connected to the first transmission disk 42; one end of the second transmission shaft 452 provided with the first sliding groove 4521 is used to be connected to the second transmission disk 44; the blocking mechanism 5 is used to limit the second transmission shaft 452. Specifically, the first transmission shaft 451 and the second transmission shaft 452 are coaxially arranged, and the first transmission shaft 451 partially extends into the first sliding groove 4521. The second transmission disc 44 is provided with a first through hole 441, that is, the first transmission disc 42 is disposed between the first sealing disc 1 and the second transmission disc 44 in the vertical direction. The diameter of the first through hole 441 can be greater than or equal to the diameter of the first transmission shaft 451, so that the first transmission shaft 451 can pass through the first through hole 441 and connect with the first transmission disc 42. The first elastic member 453 can be elastic or have other elastic structures, which are not limited in this embodiment.

[0034] During construction, by pressing the transmission shaft assembly 45 downward, that is, pressing the second transmission shaft 452, the second transmission shaft 452 drives the first transmission shaft 451 to move downward through the action of the first elastic member 453, and the first transmission shaft 451 drives the first sealing disk 1 to move downward, thereby driving the first slider 412 to slide in the guide groove 11, so that the first abutment member 413 can drive the elastic sealing member 2 to elastically deform, so that it abuts against the inner wall of the well pipe. When the first abutment member 413 moves into place, the first slider 412 abuts against one end of the guide groove 11, that is, at this time, the first slider 412 cannot continue to slide. Since the first slider 412 cannot continue to slide, the second transmission shaft 452 causes the first elastic member 453 to be compressed in the process of continuing to move downward, thereby ensuring that the second transmission shaft 452 can continue to move downward. The second transmission shaft 452 continues to move downward, driving the second transmission shaft 452 to connect with the second sealing disk 3, and then driving the second slider 432 to slide in the guide groove 11, so that the second abutment 433 abuts against the elastic seal 2, and then driving the elastic seal 2 to undergo elastic deformation, so that the outer ring of the elastic seal 2 can abut against the inner wall of the well pipe.

[0035] In one implementation, the first transmission disc is provided with a first guide hole 421, the inner sidewall of which is inclined relative to the central axis of the first transmission disc. A first guide portion 4511 is provided at the end of the first transmission shaft 451 extending from the first sliding slot 4521. The first guide portion 4511 is configured to abut against the inner sidewall of the first guide hole 421. The first guide portion 4511 may be an inclined section disposed on the first transmission shaft 451, with the smaller end of the inclined section facing the first sealing disc 1. The provision of the first guide hole 421 and the first guide portion 4511 ensures synchronous movement of the first transmission assembly 41.

[0036] In one implementation, the first through-hole 441 includes a flared section and a straight section. The sidewall of the flared section is inclined relative to the central axis of the second transmission disk. A second guide portion 4524 is provided at one end of the second transmission shaft 452, where the first sliding groove 4521 is provided. The second guide portion 4524 is configured to connect with the flared section. Specifically, the diameter of the straight section is equal to or greater than the diameter of the first transmission shaft 451. The second guide portion 4524 may be an inclined section disposed on the second transmission shaft 452, with the smaller end of the inclined section facing the second sealing disk 3. The provision of the flared section and the second guide portion 4524 ensures synchronized movement of the second transmission assembly 43.

[0037] In one embodiment, a plurality of second sliding grooves 4522 are provided on the outer surface of the second transmission shaft 452, and a limiting hole 4523 is provided at the bottom of the second sliding groove 4522 away from the connection end of the second transmission shaft 452 and the second transmission disk 44; a third through hole is provided on the second sealing disk 3 for avoiding the first group of transmission components 41, the second group of transmission components 43 and the transmission shaft component 45; the blocking mechanism 5 includes a sealing cone 51, a plurality of second elastic members 52 and a plurality of limiting columns 53; one end of the sealing cone is connected to the second sealing disk 3, and the other end is provided with a second through hole 511 for the second transmission shaft 452 to pass through, and a accommodating cavity 51 for accommodating the transmission shaft component 45 is also provided in the sealing cone. 2. The accommodating cavity 512 is communicated with the second through hole 511; the inner side wall of the second through hole 511 is provided with a plurality of mounting holes symmetrically arranged with the axis of the second through hole 511 as the symmetry line, the limiting hole 4523, the mounting hole, the second elastic member 52, and the limiting column 53 are arranged in a one-to-one correspondence, the limiting column 53 is partially arranged in the mounting hole, the second elastic member 52 is arranged in the mounting hole, one end of which is connected to the bottom of the mounting hole, and the other end is connected to the limiting column 53, and the end of the limiting column 53 extending out of the mounting hole is located in the second sliding groove 4522; when the elastic seal 2 abuts against the inner side wall of the well pipe, the end of the limiting column 53 extending out of the mounting hole penetrates into the limiting hole 4523, which is used to limit the second transmission shaft 452. The number of the limiting holes 4523, mounting holes, second elastic member 52, and limiting posts 53 can each be six. During construction, the second transmission shaft 452 moves downward, causing the limiting posts 53 to slide within the second sliding slot 4522. Once the second transmission shaft 452 is in position, the limiting posts 53, acting through the action of the second elastic member 52, extend into the limiting holes 4523, thereby preventing the second transmission shaft 452 from moving further downward or upward. It will be appreciated that when the limiting posts 53 extend into the limiting holes 4523, a portion of the limiting posts 53 remains within the mounting holes. In this embodiment, the second elastic member 52 is a spring. In other embodiments, the second elastic member 52 can also have other structures, which are not limited in this embodiment. In one embodiment, to reduce friction between the limiting posts 53 and the second sliding slot 4522, the connecting section between the limiting posts 53 and the second sliding slot 4522 can be arc-shaped.

[0038] In one embodiment, the blocking mechanism 5 further includes a sealing cover 54. A connecting portion 513 is provided at one end of the sealing cone 51 away from the second sealing disk 3. The sealing cover 54 is threadedly connected to the connecting portion 513 to close the second through hole 511. The connecting portion 513 can be a hollow cylindrical structure coaxially arranged with the second through hole 511, with an external thread provided on its outer side, and an internal thread provided on the inner side of the sealing cover 54. The sealing cover 54 and the connecting portion 513 are threadedly connected. The provision of the sealing cover 54 effectively prevents the sealing device from being smoothly installed in the precipitation well due to the limiting column 53 extending into the limiting hole 4523 due to accidental contact with the second transmission shaft 452 during transportation.

[0039] Another aspect of the present invention provides a basement drainage well sealing system, comprising a basement drainage well sealing device and a wellhead sealing device, as described above. The basement drainage well sealing device is used to seal the well pipe, and the wellhead sealing device is used to seal the wellhead. It is understood that the wellhead sealing device can be made of concrete or other sealing structures to seal the wellhead of the drainage well.

[0040] In summary, the present invention is provided with a first sealing disc 1, an elastic sealing member 2, a second sealing disc 3, a sealing member transmission mechanism and a blocking mechanism 5; when in use, the sealing member transmission mechanism drives the elastic sealing member 2 to undergo elastic deformation, thereby achieving abutment between the elastic sealing member 2 and the inner wall of the well pipe, thereby achieving segmented blocking of the interior of the precipitation well, reducing the amount of groundwater at the wellhead when the wellhead sealing device seals the wellhead of the precipitation well, thereby reducing the water pressure of the groundwater, making it easier for the wellhead sealing device to seal the wellhead of the precipitation well, and providing a blocking mechanism 5, which can maintain the abutment between the elastic sealing member 2 and the inner wall of the well pipe after the sealing member transmission mechanism moves into place, thereby ensuring the blocking effect of the sealing device. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A basement dewatering well blocking device, characterized in that: The blocking device is used to block the well pipe of the dewatering well, and comprises: a first sealing disc, an elastic sealing member, a second sealing disc, a sealing member transmission mechanism and a blocking mechanism; The elastic seal is arranged between the first sealing disk and the second sealing disk, and the seal transmission mechanism is slidably arranged on the first sealing disk, and is used to drive the elastic seal to undergo elastic deformation, so that the elastic seal abuts against the inner side wall of the well pipe of the dewatering well to seal the well pipe; The blocking mechanism is arranged on the second sealing disk. When the elastic seal abuts against the inner wall of the well pipe, the blocking mechanism is used to limit the sealing transmission mechanism to maintain the elastic seal abutting against the inner wall of the well pipe of the dewatering well.

2. The basement dewatering well plugging device according to claim 1, characterized in that: The seal transmission mechanism includes a plurality of first transmission components, a first transmission disc, a plurality of second transmission components, a second transmission disc and a transmission shaft assembly; The first sealing disk is provided with a plurality of guide grooves for guiding the movement of the first and second transmission components; the guide grooves and the first and second transmission components are provided in a one-to-one correspondence; The first transmission assembly is rotatably connected to the first transmission disc, and the second transmission assembly is rotatably connected to the second transmission disc; The transmission shaft assembly is used to drive the first transmission disc and the second transmission disc to move, thereby driving the first and second transmission assembly groups to abut against a side of the elastic seal away from the well pipe, thereby driving the elastic seal to undergo elastic deformation; The blocking mechanism is used to limit the transmission shaft assembly.

3. The basement dewatering well blocking device according to claim 2, characterized in that: The first transmission assembly includes a first connecting rod, a first slider, and a first abutment member; one end of the first connecting rod is rotatably connected to the first transmission plate, and the other end is rotatably connected to the first slider, the first slider is disposed in the guide groove, and the first abutment member is disposed on the first slider; The second transmission assembly includes a second connecting rod, a second slider, and a second abutment member; one end of the second connecting rod is rotatably connected to the second transmission plate, and the other end is rotatably connected to the second slider, the second slider is disposed in the guide groove, and the second abutment member is disposed on the second slider; The first abutting member and the second abutting member are used to abut against the elastic sealing member; when the elastic sealing member abuts against the side wall of the well pipe, a plurality of the first abutting members and a plurality of the second abutting members form a circular ring shape.

4. The basement dewatering well blocking device according to claim 3, characterized in that: The guide groove includes a first sub-guide groove and two second sub-guide grooves; The two second sub-guide grooves are respectively arranged on one of the two side walls opposite to each other of the first sub-guide groove; The first sliding block and the second sliding block are respectively provided with two protrusions, and the protrusions are provided in a one-to-one correspondence with the second sub-guide grooves.

5. The basement dewatering well sealing device according to claim 4, characterized in that: The first sealing disk includes an avoidance hole and a blocking member, the avoidance hole is connected to the plurality of guide grooves, and the blocking member is used to block the avoidance hole.

6. The basement dewatering well sealing device according to claim 3, characterized in that: The transmission shaft assembly includes a first transmission shaft, a second transmission shaft and a first elastic member; The second transmission shaft is provided with a first sliding groove, the center line of the first sliding groove coincides with the center axis of the second transmission shaft, the first elastic member is disposed in the first sliding groove, one end of the first elastic member is connected to the bottom of the first sliding groove, and the other end is connected to the first transmission shaft; the first transmission shaft is partially disposed in the first sliding groove; The second transmission plate is provided with a first through hole, and one end of the first transmission shaft extending out of the first sliding slot passes through the first through hole and is connected to the first transmission plate; the end of the second transmission shaft provided with the first sliding slot is used to connect to the second transmission plate; The blocking mechanism is used to limit the second transmission shaft.

7. The basement dewatering well blocking device according to claim 6, characterized in that: A first guide hole is provided on the first transmission plate, an inner sidewall of the first guide hole is arranged obliquely with respect to the central axis of the first transmission plate, and a first guide portion is provided at one end of the first transmission shaft extending out of the first sliding slot, the first guide portion being configured to abut against the inner sidewall of the first guide hole; And / or, the first through hole includes an expanded hole section and a straight section, the side wall of the expanded hole section is inclined to the central axis of the second transmission plate, and the second transmission shaft is provided with a second guide portion at one end of the first sliding groove, and the second guide portion is used to connect with the expanded hole section.

8. The basement dewatering well plugging device according to claim 6, characterized in that: A plurality of second sliding grooves are provided on the outer surface of the second transmission shaft, and a limiting hole is provided at the bottom of the second sliding groove away from the connection end between the second transmission shaft and the second transmission plate; The second sealing disk is provided with a third through hole for avoiding the first transmission assembly, the second transmission assembly and the transmission shaft assembly; The blocking mechanism includes a sealing cone, a plurality of second elastic members and a plurality of limiting columns; one end of the sealing cone is connected to the second sealing disk, and the other end is provided with a second through hole for allowing the second transmission shaft to pass through. The sealing cone is also provided with a accommodating cavity for accommodating the transmission shaft assembly, and the accommodating cavity is connected to the second through hole; the inner side wall of the second through hole is provided with a plurality of mounting holes symmetrically arranged with the second through hole axis as the symmetry line, the limiting hole, the mounting hole, the second elastic member and the limiting column are arranged in a one-to-one correspondence, the limiting column is partially arranged in the mounting hole, the second elastic member is arranged in the mounting hole, one end of which is connected to the bottom of the mounting hole, and the other end is connected to the limiting column, and one end of the limiting column extending out of the mounting hole is located in the second sliding groove; when the elastic seal abuts against the inner side wall of the well pipe, one end of the limiting column extending out of the mounting hole penetrates into the limiting hole to limit the second transmission shaft.

9. The basement dewatering well blocking device according to claim 8, characterized in that: The blocking mechanism further includes a sealing cover. A connecting portion is provided at one end of the sealing cone away from the second sealing disk. The sealing cover is threadedly connected to the connecting portion for closing the second through hole.

10. A basement dewatering well blocking system, characterized by: It comprises a basement dewatering well plugging device and a wellhead sealing device as described in any one of claims 1 to 8, wherein the basement dewatering well sealing device is used to seal the well pipe, and the wellhead sealing device is used to seal the wellhead.

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