Foundation pit dewatering well plugging device

Abstract

The utility model relates to a foundation pit dewatering well plugging device, and relates to the field of foundation pit dewatering well plugging devices. The plugging device comprises a dewatering well pipe and a plugging cover, the plugging cover comprises a cover shell and a positioning support, the cover shell is installed on a pipe head of the dewatering well pipe in a clamped mode, the positioning support is fixedly installed on the lower end face of the cover shell, and the positioning support is sleeved with a sealing block. The threaded pipe is arranged at the lower end of the plugging cover, the sealing block is conveniently positioned and installed through the threaded pipe, and the inner blocking cover set is fixedly installed at the bottom of the threaded pipe, so that the inner blocking cover set can be supported in a dewatering well pipe for sealing connection after installation, and double-layer sealing can be achieved in cooperation with the sealing block; and in addition, the damage of a water source in the dewatering well casing to the sealing block is effectively blocked through the arrangement of the inner blocking cover set, and the use safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of foundation pit dewatering well sealing devices, and in particular to a foundation pit dewatering well sealing device. Background Art

[0002] In civil engineering construction, foundation pit dewatering wells are common facilities used to lower the groundwater level in the foundation pit. However, dewatering wells need to be sealed after construction to prevent groundwater from seeping into the foundation pit again.

[0003] The existing Chinese patent with announcement number CN212612562U discloses a foundation pit dewatering well plugging device, including a waterproof casing sleeved on the outside of the dewatering well pipe, the top of the waterproof casing is higher than the top of the dewatering well pipe, the top of the waterproof casing is provided with a sealing cover plate, the dewatering well pipe is provided with a cover, micro-expansion waterproof concrete is filled between the dewatering well pipe and the waterproof casing, a first sealing gasket is provided between the waterproof casing and the sealing cover plate, and a second sealing gasket is provided between the dewatering well pipe and the cover.

[0004] With regard to the above-mentioned related technologies, it was found that although the above-mentioned foundation pit dewatering well sealing device is provided with a multi-layer sealing structure, the cover and the wellhead are only sealed and connected by a sealing gasket. Since the sealing gasket itself is elastic and will be directly impacted by the water source in the well, once it is deformed by force, the water in the wellhead will enter the surrounding concrete, thereby affecting the overall sealing effect. Utility Model Content

[0005] In order to reduce the situation where water overflows from the inlet, the present application provides a foundation pit dewatering well sealing device.

[0006] The present application provides a foundation pit dewatering well plugging device that adopts the following technical solution:

[0007] A foundation pit dewatering well sealing device comprises a dewatering well pipe and a sealing cover, wherein the sealing cover comprises a cover shell and a positioning bracket, the cover shell is snap-fitted and installed on the pipe head of the dewatering well pipe, the positioning bracket is fixedly installed on the lower end surface of the cover shell, a sealing block is sleeved on the positioning bracket, and an inner stop cover group is also provided on the lower end surface of the positioning bracket, and the inner stop cover group is fixedly connected to the positioning bracket by bolts.

[0008] By adopting the above technical scheme, the sealing cover is fixedly installed on the head of the precipitation well pipe, and the sealing cover can be used to seal the head of the precipitation well pipe when it is convenient to use. The structural setting of the sealing cover ensures that a positioning bracket is set on the cover shell, which facilitates the installation of the sealing block and the inner baffle cover group through the positioning bracket. In this way, after the cover shell is buckled on the head of the precipitation well pipe, it can be sealed and connected with the precipitation well pipe through the sealing block. At the same time, the inner baffle cover group is set to seal and install in the precipitation well pipe to assist in water blocking, thereby reducing the impact of well water on the sealing block.

[0009] Optionally, the cover shell includes a cover top and a side ring shell, the side ring shell is arranged on the lower end surface of the cover top, and the side ring shell and the cover top are integrally formed.

[0010] By adopting the above technical solution, the cover shell is structurally arranged to ensure that the cover top and the side ring shell are matched, so that the cover shell can be easily and stably buckled on the head of the precipitation well pipe.

[0011] Optionally, a plurality of right-angle slots are provided on the outer surface of the side ring shell, and blocks corresponding to the right-angle slots are fixedly mounted on the outer surface of the dewatering well pipe.

[0012] By adopting the above technical solution, the right-angle slot and the block are arranged to facilitate the cover shell to be rotated and locked on the drainage well pipe.

[0013] Optionally, the positioning bracket includes a top plate and a threaded tube, the top plate is fixedly mounted on the inner side surface of the cover top, and the threaded tube is fixedly mounted at both ends of the top plate.

[0014] By adopting the above technical solution, the structural setting of the positioning bracket ensures that the threaded pipe can be fixedly installed on the inner side surface of the cover top through the top plate.

[0015] Optionally, the sealing block includes a plug portion and a pressure plate portion, the pressure plate portion is arranged on the upper end surface of the plug portion, and the pressure plate portion and the plug portion are integrally formed.

[0016] By adopting the above technical solution, the structural setting of the sealing block ensures that the plug block part can be inserted into the precipitation well pipe, and at the same time, the setting of the pressure plate part presses it on the upper end surface of the precipitation well pipe, thereby achieving complete sealing of the precipitation well pipe.

[0017] Optionally, both the plug portion and the pressure plate portion are provided with positioning holes for the threaded tube to pass through.

[0018] By adopting the above technical solution, by opening positioning holes on the plug part and the pressure plate part, it is convenient for the threaded pipe to pass stably through the positioning holes.

[0019] Optionally, the inner baffle cover assembly includes a disc cover and a sealing ring, an annular groove is provided on the outer side surface of the disc cover, and the sealing ring is installed in the annular groove.

[0020] By adopting the above technical solution, the sealing ring is installed through the disc cover through the structural setting of the inner baffle cover group. After the disc cover is installed in the precipitation well pipe, it can be supported on the inner wall of the precipitation well pipe through the sealing ring for sealing connection.

[0021] Optionally, the disc cover is provided with a matching hole corresponding to the threaded tube, and the matching hole runs through the upper and lower ends of the disc cover.

[0022] By adopting the above technical solution, the matching holes are set to facilitate the thread passing through the disc cover and connecting with the threaded pipe, so that the disc cover can be easily fixedly installed on the threaded pipe.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The present application provides a threaded tube at the lower end of the plugging cover, which is convenient for positioning and installing the sealing block through the threaded tube, and the inner stopper set is fixedly installed at the bottom of the threaded tube, so that after installation, it can be supported in the precipitation well pipe for sealing connection, so that the sealing block can be matched to achieve double-layer sealing, and the setting of the inner stopper set can effectively prevent the water source in the precipitation well pipe from damaging the sealing block, thereby increasing the safety of use;

[0025] 2. The present application provides a clamping block on the precipitation well pipe, so that the sealing cover can be engaged on the clamping block through a right-angle clamping groove when in use. In this way, the sealing cover can be quickly installed by rotating it during installation. After the sealing cover is installed on the precipitation well pipe, the pressure plate part of the sealing block can be stably pressed to seal the upper end face of the precipitation well pipe, which has the advantages of easy and quick installation and good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the decomposed structure of the overall structure in the embodiment of the present application.

[0027] Figure 2 It is a stereoscopic diagram of the precipitation well pipe in the embodiment of the present application.

[0028] Figure 3 It is a three-dimensional diagram of the matching of the blocking cover and the sealing block in the embodiment of the present application.

[0029] Figure 4 It is a three-dimensional diagram of the sealing block in the embodiment of the present application.

[0030] Figure 5 yes Figure 3 Front view of the device shown.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. dewatering well pipe; 2. sealing cover; 21. cover shell; 211. cover top; 212. side ring shell; 213. right-angle slot; 214. clamping block; 22. positioning bracket; 221. top plate; 222. threaded pipe; 3. sealing block; 31. plug block part; 311. positioning hole; 32. pressure plate part; 4. inner baffle cover assembly; 41. plate cover; 42. sealing ring. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] The present application embodiment discloses a foundation pit dewatering well plugging device. Figure 1 , Figure 2 and Figure 3 As shown, a foundation pit dewatering well sealing device includes a dewatering well pipe 1 and a sealing cover 2. The sealing cover 2 includes a cover shell 21 and a positioning bracket 22. The cover shell 21 is snap-fitted and installed on the pipe head of the dewatering well pipe 1. The positioning bracket 22 is fixedly installed on the lower end surface of the cover shell 21. A sealing block 3 is sleeved on the positioning bracket 22, and an inner baffle cover group 4 is also provided on the lower end surface of the positioning bracket 22. The inner baffle cover group 4 is fixedly connected to the positioning bracket 22 by bolts. A sealing cover 2 is fixedly installed at the head of the precipitation well pipe 1. When it is convenient to use, the sealing cover 2 can be used to seal the head of the precipitation well pipe 1. The sealing cover 2 is designed to be a structure that matches a cover shell 21 and a positioning bracket 22. The positioning bracket 22 is ensured to be provided on the cover shell 21, so that the sealing block 3 and the inner baffle cover group 4 can be installed conveniently through the positioning bracket 22. In this way, after the cover shell 21 is buckled on the head of the precipitation well pipe 1, it can be sealed and connected with the precipitation well pipe 1 through the sealing block 3. At the same time, the inner baffle cover group 4 is provided to seal and install in the precipitation well pipe 1 to assist in water blocking, thereby reducing the impact of well water on the sealing block 3.

[0034] Reference Figure 2 and Figure 3 As shown, the cover shell 21 includes a cover top 211 and a side ring shell 212, the side ring shell 212 is arranged on the lower end surface of the cover top 211, and the side ring shell 212 is integrally formed with the cover top 211. The cover shell 21 is structurally arranged to ensure that the cover top 211 and the side ring shell 212 cooperate, and it is easy to stably buckle on the head of the dewatering well pipe 1. A plurality of right-angle slots 213 are provided on the outer surface of the side ring shell 212, and a block 214 corresponding to the right-angle slot 213 is fixedly installed on the outer surface of the dewatering well pipe 1. The right-angle slots 213 and the block 214 are arranged to facilitate the cover shell 21 to be rotated and locked on the dewatering well pipe 1. The positioning bracket 22 includes a top plate 221 and a threaded tube 222, the top plate 221 is fixedly installed on the inner side surface of the cover top 211, and the threaded tube 222 is fixedly installed at both ends of the top plate 221. The structural setting of the positioning bracket 22 ensures that the threaded tube 222 can be fixedly installed on the inner side surface of the cover top 211 through the top plate 221 .

[0035] Reference Figure 3 and Figure 4 As shown, the sealing block 3 includes a plug portion 31 and a pressure plate portion 32, wherein the pressure plate portion 32 is arranged on the upper end surface of the plug portion 31, and the pressure plate portion 32 is integrally formed with the plug portion 31. The structural setting of the sealing block 3 ensures that the plug portion 31 can be inserted into the precipitation well pipe 1, and at the same time, the pressure plate portion 32 is pressed on the upper end surface of the precipitation well pipe 1 through the setting of the pressure plate portion 32, thereby achieving complete sealing of the precipitation well pipe 1. Both the plug portion 31 and the pressure plate portion 32 are provided with positioning holes 311 for the threaded pipe 222 to pass through. By providing the positioning holes 311 on the plug portion 31 and the pressure plate portion 32, it is convenient to stably pass the threaded pipe 222 through the positioning holes 311.

[0036] Reference Figure 1 and Figure 5 As shown, the inner cover assembly 4 includes a disc cover 41 and a sealing ring 42. An annular groove is provided on the outer surface of the disc cover 41, and the sealing ring 42 is installed in the annular groove. The structural setting of the inner cover assembly 4 ensures that the sealing ring 42 is installed through the disc cover 41. After the disc cover 41 is installed in the precipitation well pipe 1, it can be supported on the inner wall of the precipitation well pipe 1 through the sealing ring 42 for sealing connection. The disc cover 41 is provided with a matching hole corresponding to the threaded pipe 222, and the matching hole runs through the upper and lower ends of the disc cover 41. The setting of the matching hole facilitates the thread passing through the disc cover 41 to connect with the threaded pipe 222, and it is easy to fix the disc cover 41 on the threaded pipe 222.

[0037] The implementation principle of a foundation pit dewatering well sealing device in an embodiment of the present application is as follows: when sealing and installation is required, the sealing block 3 is first sleeved on the threaded tube 222 at the lower end of the sealing cover 2 through the positioning hole 311, and then the bolts are passed through the inner baffle cover group 4 and connected to the threaded tube 222, so that the inner baffle cover group 4 and the threaded tube 222 can be fixed together, and then the inner baffle cover group 4 is inserted into the dewatering well pipe 1 until the cover shell 21 on the sealing cover 2 is buckled on the dewatering well pipe 1, and then the sealing cover 2 is rotated to clamp the block 214 into the right-angle slot 213.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A foundation pit drainage well plugging device, comprising a drainage well pipe (1) and a plugging cover (2), characterized in that: The blocking cover (2) comprises a cover shell (21) and a positioning bracket (22); the cover shell (21) is mounted on the pipe head of the drainage well pipe (1); the positioning bracket (22) is fixedly mounted on the lower end surface of the cover shell (21); a sealing block (3) is sleeved on the positioning bracket (22); and an inner cover assembly (4) is further provided on the lower end surface of the positioning bracket (22); the inner cover assembly (4) is fixedly connected to the positioning bracket (22) by bolts.

2. A foundation pit dewatering well plugging device according to claim 1, characterized in that: The cover shell (21) comprises a cover top (211) and a side ring shell (212); the side ring shell (212) is arranged on the lower end surface of the cover top (211), and the side ring shell (212) and the cover top (211) are integrally formed.

3. A foundation pit dewatering well plugging device according to claim 2, characterized in that: A plurality of right-angle slots (213) are provided on the outer surface of the side ring shell (212), and a clamping block (214) corresponding to the right-angle slots (213) is fixedly mounted on the outer surface of the dewatering well pipe (1).

4. A foundation pit dewatering well plugging device according to claim 3, characterized in that: The positioning bracket (22) comprises a top plate (221) and a threaded tube (222); the top plate (221) is fixedly mounted on the inner side surface of the cover top (211); and the threaded tube (222) is fixedly mounted at both ends of the top plate (221).

5. A foundation pit dewatering well plugging device according to claim 4, characterized in that: The sealing block (3) comprises a plug block portion (31) and a pressure plate portion (32); the pressure plate portion (32) is arranged on the upper end surface of the plug block portion (31), and the pressure plate portion (32) and the plug block portion (31) are integrally formed.

6. A foundation pit dewatering well plugging device according to claim 5, characterized in that: The plug block portion (31) and the pressure plate portion (32) are both provided with a positioning hole (311) for the threaded tube (222) to pass through.

7. A foundation pit dewatering well plugging device according to claim 6, characterized in that: The inner cover assembly (4) comprises a disc cover (41) and a sealing ring (42); an annular groove is provided on the outer surface of the disc cover (41), and the sealing ring (42) is installed in the annular groove.

8. The foundation pit dewatering well plugging device according to claim 7, characterized in that: The disc cover (41) is provided with a matching hole corresponding to the threaded tube (222), and the matching hole passes through the upper and lower ends of the disc cover (41).

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