Basement dewatering well plugging device

By combining a supporting steel plate and sleeve structure with concrete filling and sealing plate water-stopping design, the problems of low sealing efficiency and leakage of basement dewatering wells are solved, achieving a highly efficient and stable sealing effect.

CN224016349UActive Publication Date: 2026-03-20CHINA METALLURGICAL CONSTR ENG GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing methods for sealing basement dewatering wells are inefficient and prone to long-term ineffective sealing due to material cracking or leakage.

Method used

The structure employs a combination of supporting steel plates and sleeves. The sleeves are filled with concrete, and the sealing is enhanced by sealing plates and water-stopping gaskets. The supporting steel plates are embedded in the concrete foundation to provide stable support.

Benefits of technology

It improves sealing efficiency, enhances seepage prevention performance, ensures long-term stability and sealing, and reduces the risk of leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a basement dewatering well plugging device which comprises a supporting steel plate arranged on the outer well wall of a dewatering well in a surrounding mode and a sleeve fixedly arranged on the supporting steel plate and communicated with the dewatering well, the sleeve is filled with concrete and used for plugging the dewatering well, and a sealing plate used for plugging the sleeve is arranged at the top of the sleeve. The supporting steel plate and the casing pipe are arranged outside the dewatering well, the casing pipe is filled with the concrete, the dewatering well can be effectively plugged, leakage is prevented, meanwhile, the plugging effect is further enhanced through the sealing plate on the top of the casing pipe, the plugging efficiency is improved, the anti-seepage performance is enhanced, and long-term stability is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of engineering construction, specifically to a sealing device for basement dewatering wells. Background Technology

[0002] Leakage at the dewatering wells in basement floors has always been a persistent problem in building construction. The quality of the sealing construction of basement floor dewatering wells is closely related to leakage, directly affecting the service life and safety of the building. Currently, most basement floor dewatering wells are designed with sealing sleeves to ensure the sealing quality of the wells later, but the actual construction results are often unsatisfactory.

[0003] Existing methods for sealing dewatering wells typically involve the following steps: First, dewatering is stopped. Then, the well is directly filled with building materials such as gravel, coarse sand, clay balls, and dry cement. Next, a sealing sleeve is installed at the wellhead for sealing. The sealing sleeve is fixed to the dewatering well using bolts or other methods. Finally, the connection between the sealing sleeve and the dewatering well is sealed using building materials such as cement mortar.

[0004] However, this traditional method has many drawbacks. First, it is inefficient and the sealing process is time-consuming. Second, during long-term use, the cement mortar at the connection between the sealing sleeve and the dewatering well is prone to cracking, leading to water leakage between the sealing sleeve and the dewatering well. This not only affects the waterproofing performance of the building, but may also cause more serious structural problems.

[0005] In addition, the filling materials used in traditional methods, such as gravel and coarse sand, may not be able to completely fill the internal space of the rainwater well, leaving potential seepage channels and making it difficult to guarantee a long-term sealing effect.

[0006] Meanwhile, existing sealing devices often lack effective water-stopping measures. Even if the initial sealing effect is good, as time goes by and groundwater pressure changes, water may still seep through tiny gaps, eventually leading to sealing failure.

[0007] Therefore, there is an urgent need for a basement dewatering well sealing device that can efficiently and quickly seal the dewatering wells and solve the problem of water leakage that easily occurs after the dewatering wells are sealed. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a basement dewatering well sealing device, which uses a combination of pre-embedded steel plates and pre-embedded steel sleeves to mechanically seal the dewatering well, thereby effectively sealing the dewatering well.

[0009] The basement dewatering well sealing device provided by this utility model adopts the following technical solution:

[0010] A basement dewatering well sealing device includes a supporting steel plate surrounding the outer wall of the dewatering well and a sleeve fixedly mounted on the supporting steel plate and communicating with the dewatering well. The sleeve is filled with concrete to seal the dewatering well, and a sealing plate is provided at the top of the sleeve to seal the sleeve.

[0011] Furthermore, the top surface of the supporting steel plate is flush with the top of the dewatering well.

[0012] Furthermore, the casing is coaxially arranged with the dewatering well and has the same inner diameter.

[0013] Furthermore, the bottom of the sleeve is provided with a ring-shaped lower connecting plate, which is closely attached to and fixedly connected to the support steel plate.

[0014] Furthermore, the top of the sleeve is provided with an annular upper connecting plate, and the sealing plate is attached to the upper connecting plate and fixedly connected to it.

[0015] Furthermore, a water-stop gasket is provided between the upper connecting plate and the sealing plate.

[0016] Furthermore, the supporting steel plate is pre-embedded in the concrete foundation around the dewatering well.

[0017] Furthermore, the supporting steel plate includes two symmetrical arc-shaped steel plates, which are fastened to the side wall of the dewatering well and fixedly connected.

[0018] Furthermore, the bottom of the supporting steel plate is provided with reinforcement components embedded in the concrete foundation.

[0019] In summary, this utility model has at least one of the following beneficial effects: by setting a supporting steel plate and casing outside the dewatering well and filling the casing with concrete, the dewatering well can be effectively sealed to prevent leakage. At the same time, the sealing plate at the top of the casing further enhances the sealing effect, improves the sealing efficiency, enhances the seepage prevention performance, and ensures long-term stability. Attached Figure Description

[0020] Fig. 1 This is a schematic diagram of an embodiment of the present utility model;

[0021] Fig. 2 This is a schematic diagram of the sleeve structure according to an embodiment of the present utility model;

[0022] Fig. 3 This is a top view of the sleeve according to an embodiment of the present utility model;

[0023] Fig. 4 This is a schematic diagram of the sealing plate in an embodiment of the present utility model;

[0024] Fig. 5 This is a schematic diagram of the supporting steel plate structure in an embodiment of the present invention;

[0025] Fig. 6 This is a schematic diagram of the structure of the present invention without the supporting steel plate installed.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Supporting steel plate; 2. Sleeve; 21. Lower connecting plate; 22. Upper connecting plate; 3. Sealing plate; 4. Water-stop gasket. Detailed Implementation

[0028] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0029] The following is in conjunction with the appendix Figs. 1-6 The present invention will be described in further detail below.

[0030] This utility model discloses a device for sealing basement dewatering wells. (Refer to...) Figs. 1-6 The basement dewatering well sealing device includes a supporting steel plate 1 surrounding the outer wall of the dewatering well and a sleeve 2 fixedly mounted on the supporting steel plate 1 and communicating with the dewatering well. The sleeve 2 is filled with concrete to seal the dewatering well. A sealing plate 3 is installed at the top of the sleeve 2 to seal it. The sleeve 2 is a cylindrical steel sleeve. The supporting steel plate 1 is set on the outer wall of the dewatering well, providing stable support for the entire sealing device. The sleeve 2 is fixed to the supporting steel plate 1 by welding and communicates with the dewatering well. Concrete is injected into the sleeve 2 to seal the dewatering well. The concrete was chosen based on its good fluidity and density, as well as its micro-expansion properties, which can effectively fill the space of the dewatering well and improve the sealing effect. The concrete, after solidification, forms a robust seal that effectively prevents moisture penetration. Sealing plate 3 is positioned on top of casing 2 to seal it. The addition of sealing plate 3 further enhances the sealing effect, preventing filler loss or external moisture infiltration. The fixed connection between sealing plate 3 and the top of casing ensures the integrity and durability of the seal. This multi-layered sealing structure, through the coordinated work of its components, effectively seals the dewatering well. The combination of supporting steel plate 1 and casing 2 provides a stable foundation, concrete filling ensures the density of the seal, and the placement of sealing plate 3 further enhances the sealing effect, not only improving sealing efficiency but also significantly reducing the risk of leakage during long-term use.

[0031] In this embodiment, the top surface of the supporting steel plate 1 is flush with the top of the dewatering well, ensuring that the supporting steel plate 1 can fit completely against the top of the dewatering well, providing a stable support foundation and making the installation of the casing 2 more convenient.

[0032] In this embodiment, the casing 2 is coaxially arranged with the dewatering well and has the same inner diameter, ensuring that the casing 2 can completely cover the opening of the dewatering well without leaving any gaps. With the cooperation of the casing 2 and the support plate 1, the dewatering well can be better sealed.

[0033] In this embodiment, a ring-shaped lower connecting plate 21 is provided at the bottom of the sleeve 2. The lower connecting plate 21 is tightly attached to the supporting steel plate 1 and fixedly connected to the supporting steel plate 1 by welding. The lower connecting plate 21 can increase the contact area between the sleeve 2 and the supporting steel plate 1. The tight attachment of the lower connecting plate 21 to the supporting steel plate 1 ensures close contact between the two and reduces possible gaps. By welding the lower connecting plate 21 to the supporting steel plate 1, the stability and sealing of the entire structure are further enhanced. The ring-shaped design of the lower connecting plate 21 ensures the uniformity of the connection with the supporting steel plate 1 and avoids local stress concentration. The tight attachment design and welding fixation further enhance the overall integrity of the structure and improve the reliability and durability of the sealing device. It can not only withstand the pressure of concrete filling, but also maintain a good sealing effect during long-term use, effectively preventing leakage.

[0034] In this embodiment, the top of the sleeve 2 is provided with an annular upper connecting plate 22. The sealing plate 3 is attached to the upper connecting plate 22 and fixedly connected to it. The sealing plate 3 is a blind plate. Bolt holes are reserved on the upper connecting plate 22. The sealing plate 3 is fixed to the upper connecting plate 22 by bolts. The setting of the upper connecting plate 22 not only increases the connection strength between the sealing plate 3 and the sleeve 1, but also provides a better sealing effect. The annular design of the upper connecting plate 22 ensures a good fit with the sleeve 2 and reduces the possibility of leakage. At the same time, the upper connecting plate 22 provides a flat connection surface for the sealing plate 3, which facilitates a better sealing effect.

[0035] In this embodiment, a water-stop gasket 4 is provided between the upper connecting plate 22 and the sealing plate 3. The water-stop gasket 4 is a rubber sheet that can fill the tiny gaps between the upper connecting plate 22 and the sealing plate 3, preventing water from seeping through these gaps. At the same time, the water-stop gasket 4 has a certain degree of elasticity, which can adapt to the slight deformation that may exist between the upper connecting plate 22 and the sealing plate 3, maintaining a long-term sealing effect. This not only improves the sealing performance of the entire sealing device, but also increases the service life of the device and reduces the need for later maintenance. The design of providing a water-stop gasket 4 between the upper connecting plate 22 and the sealing plate 3, together with other parts of the entire sealing device, forms a complete sealing system. The supporting steel plate 1 and the sleeve 2 ensure the stability of the entire device and its connection with the dewatering well, while the upper connecting plate 22, the sealing plate 3, and the water-stop gasket 4 work together to form a highly efficient top sealing structure.

[0036] In this embodiment, the supporting steel plate 1 is pre-embedded in the concrete foundation around the dewatering well. When pouring the concrete foundation, the supporting steel plate 1 is placed in the predetermined position, and then the concrete is poured, so that the supporting steel plate 1 and the concrete foundation are integrated. By pre-embedding the supporting steel plate 1 in the concrete foundation, the supporting steel plate 1 and the surrounding structure of the dewatering well can be integrated. This not only enhances the fixing effect of the supporting steel plate 1, but also prevents the supporting steel plate 1 from shifting or deforming during use. The pre-embedding method can also ensure the sealing between the supporting steel plate 1 and the dewatering well, which helps to prevent water leakage. In addition, this pre-embedding method simplifies the installation process, improves construction efficiency, and also enhances the durability of the entire sealing device.

[0037] In this embodiment, the supporting steel plate 1 includes two symmetrical arc-shaped steel plates. The two arc-shaped steel plates are fastened to the side wall of the dewatering well and fixedly connected by welding. The arc-shaped design allows the steel plates to fit tightly against the circular outer wall of the dewatering well, improving the convenience and stability of installation.

[0038] In this embodiment, a reinforcement 5 is pre-embedded in the concrete foundation and welded to the bottom of the supporting steel plate 1. The reinforcement 5 is a steel bar bent at 90°. The reinforcement 5 can increase the stability of the connection between the supporting steel plate 1 and the concrete foundation, so that the connection strength between the supporting steel plate 1 and the concrete foundation is higher.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sealing device for basement dewatering wells, characterized in that: It includes a supporting steel plate (1) surrounding the outer wall of the dewatering well and a casing (2) fixed on the supporting steel plate (1) and communicating with the dewatering well. The casing (2) is filled with concrete to seal the dewatering well, and a sealing plate (3) is provided on the top of the casing (2) to seal the casing (2).

2. The basement dewatering well sealing device according to claim 1, characterized in that: The top surface of the supporting steel plate (1) is level with the top of the dewatering well.

3. The basement dewatering well sealing device according to claim 2, characterized in that: The casing (2) is coaxially arranged with the dewatering well and has the same inner diameter.

4. The basement dewatering well sealing device according to claim 3, characterized in that: The bottom of the sleeve (2) is provided with a ring-shaped lower connecting plate (21), which is closely attached to the supporting steel plate (1) and fixedly connected to the supporting steel plate (1).

5. The basement dewatering well sealing device according to claim 3, characterized in that: The top of the sleeve (2) is provided with an annular upper connecting plate (22), and the sealing plate (3) is attached to the upper connecting plate (22) and fixedly connected to the upper connecting plate (22).

6. The basement dewatering well sealing device according to claim 5, characterized in that: A water-stop gasket (4) is provided between the upper connecting plate (22) and the sealing plate (3).

7. The basement dewatering well sealing device according to claim 1, characterized in that: The supporting steel plate (1) is embedded in the concrete foundation around the dewatering well.

8. The basement dewatering well sealing device according to claim 7, characterized in that: The supporting steel plate (1) includes two symmetrical arc-shaped steel plates, which are fastened to the side wall of the dewatering well and fixedly connected.

9. The basement dewatering well sealing device according to claim 8, characterized in that: The bottom of the supporting steel plate (1) is provided with a reinforcing member (5) embedded in the concrete foundation.