Waterproof plugging device for drainage well

Abstract

The utility model discloses a waterproof plugging device for a drainage well, and relates to the technical field of drainage wells. The anti-seepage well comprises a well casing, a plugging assembly and an anti-seepage assembly, a connecting ring is fixedly connected to the surface of the well casing, clamping shells are fixedly connected to the two sides of the connecting ring, a pipe cover is arranged at the top of the well casing, locking mechanisms are fixedly connected to the two sides of the pipe cover, and the plugging assembly is arranged at the top of the pipe cover and comprises a screw rod. And the bottom of the screw rod penetrates through the pipe cover and is movably connected with a pressing block. Through the arrangement of the plugging assembly, a user can rotate a hand wheel, the hand wheel drives a screw rod to rotate, the screw rod is matched with a threaded hole to control a pressing block to move downwards, and the pressing block moves to enter an inner cavity of a first rubber block and extrudes the inner cavity of the first rubber block so that the inner cavity of the first rubber block can deform; the surface of the first rubber block is tightly attached to the inner wall of the well casing due to extrusion of the pressing block, the well casing is blocked, and the situation of water seepage of the well casing is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of dewatering wells, and particularly relates to a waterproof plugging device for dewatering wells. Background Technique

[0002] With the continuous development of urban construction, problems of groundwater often occur in the construction of deep foundation buildings. During the construction of underground projects, in order to reduce the adverse effects brought by too high groundwater level to the construction, dewatering wells are usually set in the foundation slab to lower the groundwater level to the designed level and ensure the stability of the foundation pit. After the dewatering wells complete the dewatering, they need to be plugged, so a waterproof plugging device for dewatering wells is required.

[0003] The existing waterproof plugging devices for dewatering wells generally use prefabricated steel sleeves and flange plates to seal the wells, and bolts are used to lock and fix the flange plates, so as to realize the plugging of the dewatering wells. However, in areas with rich groundwater, due to the large groundwater pressure, water seepage may occur in the plugging area, affecting the plugging effect of the dewatering wells and being not conducive to people's use.

[0004] Therefore, we provide a waterproof plugging device for dewatering wells to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a waterproof plugging device for dewatering wells. Through the combined setting of a plugging component and a water seepage prevention component, the problems in the prior art that in areas with rich groundwater, due to the large water pressure, the dewatering wells are prone to water leakage after plugging and the plugging effect is poor are solved.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a waterproof plugging device for dewatering wells, which includes a well pipe, a plugging component and a water seepage prevention component. A connecting ring is fixedly connected to the surface of the well pipe, clamping shells are fixedly connected to both sides of the connecting ring, a pipe cover is arranged at the top of the well pipe, and locking mechanisms are fixedly connected to both sides of the pipe cover;

[0008] The plugging component is arranged on the top of the pipe cover and includes a screw rod. The bottom of the screw rod penetrates through the pipe cover and is movably connected with a pressing block. A first rubber block is arranged at the bottom of the pressing block. Slide rods are fixedly connected between both sides of the top of the first rubber block and the pipe cover. The surface of the slide rods is slidably connected with sliding sleeves, and one side of the two sliding sleeves facing each other is fixedly connected with the pressing block;

[0009] The anti-seepage component is arranged at the bottom of the first rubber block and includes a second rubber block. A floating plate is arranged at the bottom of the second rubber block. A top block is fixedly connected to the top of the floating plate. Reset boxes are fixedly connected to both sides of the bottom of the second rubber block. A spring is arranged in the inner cavity of the reset box. The bottom of the spring is fixedly connected to a top rod. The bottom of the top rod penetrates through the reset box and is fixedly connected to the floating plate.

[0010] The present utility model is further arranged such that the locking mechanism includes a fixed frame. A threaded sleeve is movably connected between the front side and the rear side of the inner cavity of the fixed frame. A bolt is arranged at the bottom of the shell. The top of the bolt penetrates through the shell and is in threaded connection with the threaded sleeve.

[0011] The present utility model is further arranged such that handles are fixedly connected to both sides of the top of the pipe cap. A rubber ring is fixedly connected to the bottom of the pipe cap.

[0012] The present utility model is further arranged such that a hand wheel is fixedly connected to the top of the screw rod. A threaded hole matching with the screw rod is opened in the top of the pipe cap.

[0013] The present utility model is further arranged such that grooves are opened on the opposite sides of the first rubber block and the second rubber block. The shapes of the top block and the pressing block are both conical.

[0014] The present utility model is further arranged such that the top of the spring is fixedly connected to the inner wall of the reset box. An opening matching with the top rod is opened at the bottom of the reset box.

[0015] The present utility model is further arranged such that the front side and the rear side of the threaded sleeve are movably connected to the inner wall of the fixed frame through bearings. A gasket is sleeved on the bottom surface of the bolt.

[0016] The present utility model is further arranged such that an installation groove is opened on the side of the shell away from the connecting ring. The floating plate is circular in shape, and its outer diameter is the same as the inner diameter of the well pipe.

[0017] The present utility model has the following beneficial effects:

[0018] 1. Through the arrangement of the plugging component, the user can rotate the hand wheel, drive the screw rod to rotate through the hand wheel, the screw rod cooperates with the threaded hole to control the pressing block to move downward, the pressing block moves into the inner cavity of the first rubber block and extrudes its inner cavity, causing it to deform. The surface of the first rubber block is closely attached to the inner wall of the well pipe due to the extrusion of the pressing block, and the well pipe is plugged to prevent water seepage.

[0019] 2. Through the setting of the anti-seepage component, the present utility model can drive the top block to move through the floating plate. When the water level inside the well pipe rises, the floating plate drives the top block to move upward. The top block moves into the inner cavity of the second rubber block. Since the first rubber block fits against the inner wall of the well pipe, after being squeezed, the second rubber block can only deform and fit against the inner wall of the well pipe in the same way as the first rubber block. Moreover, the stronger the water pressure, the closer the second rubber block fits against the well pipe, further preventing the well pipe from seeping water.

[0020] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a three-dimensional structure diagram of a waterproof plugging device for a dewatering well;

[0023] Figure 2 It is a cross-sectional view of the well pipe of a waterproof plugging device for a dewatering well;

[0024] Figure 3 It is a cross-sectional view of the pipe cap and the first rubber block of a waterproof plugging device for a dewatering well;

[0025] Figure 4 It is a cross-sectional view of the second rubber block of a waterproof plugging device for a dewatering well;

[0026] Figure 5 It is a cross-sectional view of the reset box of a waterproof plugging device for a dewatering well.

[0027] In the drawings: 1. Well pipe; 2. Connecting ring; 3. Card shell; 4. Pipe cap; 5. Plugging component; 501. Screw rod; 502. Pressing block; 503. First rubber block; 504. Slide rod; 505. Slide sleeve; 6. Anti-seepage component; 601. Second rubber block; 602. Floating plate; 603. Top block; 604. Reset box; 605. Spring; 606. Top rod; 7. Locking mechanism; 701. Fixed frame; 702. Threaded sleeve; 703. Bolt; 8. Rubber ring; 9. Handwheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Specific Embodiment 1

[0030] Please refer to Figures 1-5 , the present utility model is a waterproof plugging device for dewatering wells, including a well pipe 1, a plugging assembly 5 and a water seepage prevention assembly 6. A connecting ring 2 is fixedly connected to the surface of the well pipe 1. Clamping shells 3 are fixedly connected to both sides of the connecting ring 2. A pipe cover 4 is arranged at the top of the well pipe 1. Locking mechanisms 7 are fixedly connected to both sides of the pipe cover 4. The plugging assembly 5 is arranged on the top of the pipe cover 4 and includes a screw rod 501. The bottom of the screw rod 501 penetrates through the pipe cover 4 and is movably connected with a pressing block 502. A first rubber block 503 is arranged at the bottom of the pressing block 502. Slide rods 504 are fixedly connected between the two sides of the top of the first rubber block 503 and the pipe cover 4. A sliding sleeve 505 is slidably connected to the surface of the slide rod 504. The opposite sides of the two sliding sleeves 505 are fixedly connected to the pressing block 502. The water seepage prevention assembly 6 is arranged at the bottom of the first rubber block 503 and includes a second rubber block 601. A floating plate 602 is arranged at the bottom of the second rubber block 601. A top block 603 is fixedly connected to the top of the floating plate 602. Reset boxes 604 are fixedly connected to both sides of the bottom of the second rubber block 601. A spring 605 is arranged in the inner cavity of the reset box 604. The bottom of the spring 605 is fixedly connected to a top rod 606. The bottom of the top rod 606 penetrates through the reset box 604 and is fixedly connected to the floating plate 602.

[0031] Specifically: The clamping shells 3 are fixed to both sides of the connecting ring 2 by welding, and the connecting ring 2 is fixed to the surface of the well pipe 1 by expansion screws. The screw rod 501 can control the use height of the pressing block 502. The slide rods 504 and the sliding sleeves 505 can improve the stability of the pressing block 502 during movement. The first rubber block 503 can cooperate with the pressing block 502 to make its surface closely fit the inner wall of the well pipe 1 to prevent water seepage. The spring 605 and the top rod 606 can reset the floating plate 602 when it does not contact water. Specific Embodiment 2

[0033] Please refer to Figures 1-5, on the basis of the first specific embodiment, the locking mechanism 7 includes a fixed frame 701. A threaded sleeve 702 is movably connected between the front side and the rear side of the inner cavity of the fixed frame 701. A bolt 703 is provided at the bottom of the cartridge case 3. The top of the bolt 703 penetrates through the cartridge case 3 and is threadedly connected to the threaded sleeve 702. Handles are fixedly connected to both sides of the top of the pipe cover 4. A rubber ring 8 is fixedly connected to the bottom of the pipe cover 4. A handwheel 9 is fixedly connected to the top of the screw rod 501. A threaded hole for cooperating with the screw rod 501 is provided in the top of the pipe cover 4.

[0034] Specifically: The fixed frame 701 is installed on both sides of the pipe cover 4 by welding. The threaded sleeve 702 can cooperate with the bolt 703 to move the pipe cover 4 downward and make the pipe cover 4 tightly installed on the top of the well pipe 1. The handle can facilitate the user to lift the pipe cover 4. The rubber ring 8 can enhance the sealing effect of the pipe cover 4. The handwheel 9 can facilitate the user to rotate the screw rod 501. The threaded hole can facilitate the screw rod 501 to drive the pressing block 502 to move. The third specific embodiment

[0036] Please refer to Figures 1-5 , on the basis of the first specific embodiment and the second specific embodiment, grooves are provided on the opposite sides of the first rubber block 503 and the second rubber block 601. The shapes of the top block 603 and the pressing block 502 are both conical. The top of the spring 605 is fixedly connected to the inner wall of the reset box 604. An opening for cooperating with the ejector rod 606 is provided at the bottom of the reset box 604. The front side and the rear side of the threaded sleeve 702 are movably connected to the inner wall of the fixed frame 701 through bearings. A gasket is sleeved on the bottom surface of the bolt 703. An installation groove is provided on the side of the cartridge case 3 away from the connection ring 2. The shape of the floating plate 602 is circular, and its outer diameter is the same as the inner diameter of the well pipe 1.

[0037] Specifically: The grooves can facilitate the top block 603 and the pressing block 502 to squeeze the first rubber block 503 and the second rubber block 601. The opening can facilitate the ejector rod 606 to move up and down. The bearing can facilitate the rotation of the threaded sleeve 702. The gasket can improve the stability of the connection between the bolt 703 and the cartridge case 3. The installation groove can facilitate the use of the bolt 703.

[0038] The working principle of the present utility model is as follows: The pipe cap 4 is sleeved on the top of the well pipe 1. At the same time, the first rubber block 503 and the second rubber block 601 enter the inner cavity of the well pipe 1. Then, two bolts 703 are fixed through the installation groove. After tightening the bolts 703, the pipe cap 4 presses down on the rubber ring 8, and the sealing effect of the pipe cap 4 is enhanced through the rubber ring 8. Subsequently, the hand wheel 9 is rotated. The hand wheel 9 cooperates with the screw rod 501 to drive the pressing block 502 to move downward. The pressing block 502 enters the groove inside the first rubber block 503, and the first rubber block 503 is squeezed by the pressing block 502 to deform. The surface of the first rubber block 503 is closely attached to the inner wall of the well pipe 1, completing the plugging of the well pipe 1. When the water level in the well pipe 1 rises, the water pushes the floating plate 602 to move upward. The floating plate 602 drives the top block 603 into the groove of the second rubber block 601. After being squeezed, the second rubber block 601 deforms and fits with the inner wall of the well pipe 1. Moreover, the stronger the water pressure, the closer the second rubber block 601 fits with the well pipe 1, further preventing water seepage in the well pipe 1.

[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not elaborate on all the details, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A drainage well waterproof plugging device, comprising a well pipe (1), a plugging component (5) and a water seepage prevention component (6), characterized in that: A connecting ring (2) is fixedly connected to the surface of the well pipe (1), and a clamping shell (3) is fixedly connected to both sides of the connecting ring (2). A pipe cover (4) is arranged on the top of the well pipe (1), and a locking mechanism (7) is fixedly connected to both sides of the pipe cover (4); The plugging assembly (5) is arranged at the top of the pipe cover (4), and comprises a screw rod (501). The bottom of the screw rod (501) passes through the pipe cover (4) and is movably connected to a pressure block (502). A first rubber block (503) is arranged at the bottom of the pressure block (502). Both sides of the top of the first rubber block (503) are fixedly connected to the pipe cover (4) with sliding rods (504). The surface of the sliding rod (504) is slidably connected to a sliding sleeve (505). The opposite sides of the two sliding sleeves (505) are fixedly connected to the pressure block (502). The anti-seepage component (6) is arranged at the bottom of the first rubber block (503), and comprises a second rubber block (601). A floating plate (602) is arranged at the bottom of the second rubber block (601). The top of the floating plate (602) is fixedly connected to a top block (603). Both sides of the bottom of the second rubber block (601) are fixedly connected to a reset box (604). A spring (605) is arranged in the inner cavity of the reset box (604). The bottom of the spring (605) is fixedly connected to a top rod (606). The bottom of the top rod (606) passes through the reset box (604) and is fixedly connected to the floating plate (602).

2. A dewatering well waterproof plugging device according to claim 1, characterized in that: The locking mechanism (7) comprises a fixing frame (701), a threaded sleeve (702) being movably connected between the front side and the rear side of the inner cavity of the fixing frame (701), a bolt (703) being arranged at the bottom of the housing (3), the top of the bolt (703) passing through the housing (3) and being threadedly connected to the threaded sleeve (702).

3. A dewatering well waterproof plugging device according to claim 1, characterized in that: Handles are fixedly connected to both sides of the top of the tube cover (4), and a rubber ring (8) is fixedly connected to the bottom of the tube cover (4).

4. A dewatering well waterproof plugging device according to claim 1, characterized in that: The top of the screw rod (501) is fixedly connected to a hand wheel (9), and the top of the pipe cover (4) is provided with a threaded hole for use with the screw rod (501).

5. A dewatering well waterproof plugging device according to claim 1, characterized in that: A groove is provided on the opposite side of the first rubber block (503) and the second rubber block (601), and the top block (603) and the pressure block (502) are both conical in shape.

6. A dewatering well waterproof plugging device according to claim 1, characterized in that: The top of the spring (605) is fixedly connected to the inner wall of the reset box (604), and the bottom of the reset box (604) is provided with an opening for use with the ejector rod (606).

7. A dewatering well waterproof plugging device according to claim 2, characterized in that: The front and rear sides of the threaded sleeve (702) are movably connected to the inner wall of the fixed frame (701) via bearings, and a gasket is sleeved on the bottom of the surface of the bolt (703).

8. A dewatering well waterproof plugging device according to claim 1, characterized in that: A mounting groove is provided on a side of the casing (3) away from the connecting ring (2), and the floating plate (602) is circular in shape, with an outer diameter being the same as the inner diameter of the well pipe (1).

Images