Anti-seepage structure of house building

By creating an installation recess in front of the wall and setting up a drainage channel that connects to the sewer, the problem of easy water seepage in traditional waterproof layers is solved by using drainage covers and sealing components, thereby improving the waterproof effect and adapting to the deformation requirements of prefabricated buildings.

CN224133958UActive Publication Date: 2026-04-17JINAN HAIHE CONSTR PROJECT MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINAN HAIHE CONSTR PROJECT MANAGEMENT CO LTD
Filing Date
2025-03-25
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In traditional housing construction, bathroom waterproofing structures are prone to cracking due to material interface bonding failure and stress concentration at complex nodes. They are also difficult to adapt to the dynamic deformation of prefabricated buildings, and existing waterproofing devices still have water seepage problems at the gaps.

Method used

An installation recess is created in front of the wall, with a drainage channel connected to the sewer. A drainage cover and sealing components prevent water from seeping in. Water is guided into the drainage channel by guide plates and baffles, and a locking component ensures a sealing effect.

Benefits of technology

It effectively prevents bath water and condensation from seeping into the wall, maintains the wall's support capacity, ensures that the bathroom's exterior wall is waterproof, and adapts to the deformation requirements of prefabricated buildings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-seepage structure of a house building. The anti-seepage structure comprises a mounting recess and an anti-seepage device, the installation recess is used for being formed in the position, close to a wall, of the bathroom ground of a house. The anti-seepage device is used for being arranged in the mounting recess; wherein the anti-seepage device comprises a drainage tank, a drainage cover and a sealing assembly, and the drainage tank is used for being arranged in the mounting recess and is communicated with a sewer through a pipeline; the drainage cover is detachably installed on the drainage groove, a plurality of drainage holes are formed in the drainage cover, the sealing assembly is used for being installed between the drainage cover and the upper end face of the drainage groove, and the sealing assembly is used for being tightly attached to the inner wall of the installation pit. The utility model aims to solve the problem that the anti-seepage effect of a wall body is poorer due to the fact that only a sealing strip is arranged in a building anti-seepage device in the prior art.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a waterproof structure for building construction. Background Technology

[0002] In traditional building construction, bathroom waterproofing primarily relies on a construction process combining rigid waterproofing materials with flexible waterproofing layers, such as a composite structure using polymer cement-based waterproofing coatings and polyethylene polypropylene rolls. However, this technical system carries the risk of material interface adhesion failure, especially at complex nodes such as corners and pipe joints, where stress concentration can easily lead to cracking of the waterproofing layer. Inadequate control of substrate moisture content and uneven coating thickness during conventional construction can cause blistering or capillary leakage. With the increasing demands for refined dry and wet separation design in modern buildings and the widespread adoption of prefabricated integrated bathrooms, traditional point-based waterproofing is no longer sufficient to adapt to the dynamic deformation of prefabricated component joints. There is an urgent need to develop a new waterproofing system with elastic deformation capabilities, strong interface adaptability, and resistance to long-term immersion erosion.

[0003] Utility model patent application number CN202421059834.5 and publication number CN222252573U (hereinafter referred to as "Prior Art 1") discloses a waterproof structure for building exterior walls, comprising: a wall substrate, which is the main structure of the building exterior wall; a waterproof layer, which is disposed on the outer surface of the wall substrate to prevent external moisture from seeping into the wall; reinforcing ribs, which are disposed inside the waterproof layer to enhance the tensile strength and puncture resistance of the waterproof layer; a waterproof sealing strip, which is disposed along the joints of the wall to fill the gaps in the wall and further improve the waterproof effect; and corner guards, which are disposed at the corners of the wall to protect the waterproof layer at the corners from mechanical damage; the thickness of the waterproof layer is 5-20 mm, the diameter of the reinforcing ribs is 2-5 mm, and the width of the waterproof sealing strip is 10-30 mm.

[0004] The specification of prior art 1 discloses a waterproof structure for building exterior walls. When in use, a waterproof sealing strip is placed at the joints of the wall to fill the gaps and further improve the waterproof effect, effectively solving the problem of easy water seepage at the joints in the prior art. However, in actual application, even if a sealing strip is set, water will still seep into the wall from the gaps, causing the wall to peel and be difficult to clean. Summary of the Invention

[0005] This utility model provides a waterproof structure for building construction, aiming to solve the problem that existing waterproof devices for buildings, which only have sealing strips, result in poor waterproofing of the walls.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A waterproofing structure for a building includes a mounting recess and a waterproofing device; the mounting recess is for being formed on the floor of a bathroom near a wall; the waterproofing device is for being installed inside the mounting recess.

[0008] The seepage prevention device includes a drainage trough, a drainage cover, and a sealing assembly. The drainage trough is installed inside the installation recess and is connected to the sewer through a pipe. The drainage cover is detachably installed on the drainage trough and has several drainage holes. The sealing assembly is installed between the upper surfaces of the drainage cover and the drainage trough and is tightly attached to the inner wall of the installation recess.

[0009] Furthermore, the sealing assembly includes a sealing groove and a sealing gasket. The sealing groove is disposed on the upper end surface of the drainage groove, and the sealing gasket is used to be installed inside the sealing groove. The drainage cover is used to detachably connect with the sealing groove after the sealing gasket is squeezed.

[0010] Furthermore, a guide plate is provided below the drainage cover.

[0011] Furthermore, the guide plate is inclined, with the inclination direction aligned with the upper opening of the drainage trough.

[0012] Furthermore, the drainage cover is equipped with a baffle plate with an inclined surface, the inclined surface being inclined in the direction of the drainage hole, and the baffle plate is sealed to the wall.

[0013] Furthermore, the drain cover is detachably connected to the drain channel via a locking assembly.

[0014] Furthermore, the locking assembly includes a plug rod and a socket. The plug rod is located at the bottom of the mounting cover, and the socket is located on the upper end face of the mounting groove. The plug rod is provided with an annular limiting groove, and the socket is provided with a mounting hole. An elastic element is provided inside the mounting hole. One end of the elastic element is connected to the bottom of the mounting hole, and the other end is connected to a limiting block. Both the limiting block and the annular limiting groove are provided with guide surfaces. The cross-section of the limiting block has the same shape as the cross-section of the annular limiting groove, and the limiting block is used to be inserted into the annular limiting groove.

[0015] Furthermore, the elastic element is a spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model mainly includes an installation recess and a seepage prevention device. In actual use, in the bathroom, bathwater or condensate from the water heater can accumulate in the gaps of the wall, causing the water to seep into the wall and weakening its support. To prevent this problem, an installation recess is made in front of the wall, and a drainage channel is installed in the recess. The drainage channel is connected to the sewer. When water enters the drainage channel through the drainage cover, the water is sealed by the sealing component to prevent water from flowing out from the gap between the drainage cover and the drainage channel. Since the drainage cover is set against the inner wall of the bathroom, the water in the bathroom cannot maintain long-term contact with the outer wall, ensuring that the bathroom exterior wall will not seep water and effectively protecting the bathroom exterior wall. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0021] Figure 3 This is a partial cross-sectional view of the drainage channel and drainage cover of this utility model after they are connected.

[0022] Figure 4 This utility model Figure 3 A magnified view of a section at point B.

[0023] In the diagram, 101-installation recess, 102-drainage groove, 103-drainage cover, 104-drainage hole, 105-sealing groove, 106-sealing gasket, 107-guide plate, 108-baffle, 109-sloping surface, 110-insertion rod, 111-insertion hole, 112-annular limiting groove, 113-installation hole, 114-spring, 115-limiting block, 116-guide surface. Detailed Implementation

[0024] The present invention will be further described below with reference to embodiments. These embodiments are merely some, not all, of the present invention. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the protection scope of the present invention.

[0025] Please see Figures 1-4 As shown, this embodiment discloses a waterproof structure for a building, including an installation recess 101 and a waterproof device; the installation recess 101 is used to be opened on the floor of the bathroom near the wall; the waterproof device is used to be installed inside the installation recess 101.

[0026] The seepage prevention device includes a drainage channel 102, a drainage cover 103, and a sealing assembly. The drainage channel 102 is installed inside the mounting recess 101 and is connected to the sewer through a pipe. The drainage cover 103 is detachably installed on the drainage channel 102 and has several drainage holes 104. The sealing assembly is installed between the upper surfaces of the drainage cover 103 and the drainage channel 102 and is tightly attached to the inner wall of the mounting recess 101.

[0027] This utility model mainly includes an installation recess 101 and a seepage prevention device. In actual use, in the bathroom, bathwater or condensate from the water heater can accumulate in the gaps of the wall, causing the water to seep into the wall and weakening its support. To prevent this problem, an installation recess 101 is made in front of the wall, and a drainage channel 102 is set in the installation recess 101. The drainage channel 102 is connected to the sewer. When water enters the drainage channel 102 through the drainage cover 103, the water is sealed by the sealing component to prevent water from flowing out from the gap between the drainage cover 103 and the drainage channel 102. Since the drainage cover 103 is set against the inner wall of the bathroom, the water in the bathroom cannot maintain long-term contact with the outer wall, ensuring that the bathroom exterior wall will not seep water and effectively protecting the bathroom exterior wall.

[0028] In some embodiments, the sealing assembly includes a sealing groove 105 and a sealing gasket 106. The sealing groove 105 is disposed on the upper end surface of the drainage groove 102, and the sealing gasket 106 is used to be installed inside the sealing groove 105. The drainage cover 103 is used to detachably connect with the sealing groove 105 after squeezing the sealing gasket 106.

[0029] In actual use, when the drain cover 103 is installed on the upper end face of the drain trough 102, the drain cover 103 squeezes the sealing gasket 106, so that the two end faces of the sealing gasket 106 are tightly fitted with the drain cover 103 and the drain trough 102 respectively, thereby sealing the gap between the drain cover 103 and the drain trough 102.

[0030] In some embodiments, a guide plate 107 is provided below the drainage cover 103.

[0031] In actual use, the purpose of setting the guide plate 107 is to guide the water passing through the drain hole 104 and prevent the water from contacting the wall due to inertia.

[0032] In some embodiments, the guide plate 107 is inclined, and the inclined direction of the guide plate 107 is aligned with the upper opening of the drainage groove 102.

[0033] In actual use, the purpose of tilting the guide plate 107 is to facilitate better guidance of water.

[0034] In some embodiments, a baffle 108 is provided on the drainage cover 103, the baffle 108 has an inclined surface 109, the inclined surface 109 is inclined toward the position of the drainage hole 104, and the baffle 108 is sealed to the wall.

[0035] In actual use, in order to further enhance the water-proof effect of the drainage cover 103, a baffle 108 is set to guide the water falling on the wall, so that the water droplets on the wall fall on the baffle 108 and finally flow into the drainage hole 104 on the drainage cover 103, and then flow into the drainage trough 102 to complete the discharge.

[0036] In some embodiments, the drain cover 103 is detachably connected to the drain channel 102 via a locking assembly.

[0037] In some embodiments, the locking assembly includes a plug rod 110 and a socket 111. The plug rod 110 is disposed at the bottom of the mounting cover, and the socket 111 is disposed on the upper end surface of the mounting groove. The plug rod 110 is provided with an annular limiting groove 112, and the socket 111 is provided with a mounting hole 113. An elastic element is disposed inside the mounting hole 113. One end of the elastic element is connected to the bottom of the mounting hole 113, and the other end is connected to a limiting block 115. Both the limiting block 115 and the annular limiting groove 112 are provided with guide surfaces 116. The cross-section of the limiting block 115 has the same shape as the cross-section of the annular limiting groove 112, and the limiting block 115 is used to be inserted into the annular limiting groove 112.

[0038] In some embodiments, the elastic element is a spring 114.

[0039] In actual use, to ensure a more secure compression of the sealing gasket 106, when installing the mounting cover, the user aligns the insert rod 110 on the mounting cover with the insertion hole 111 on the drain groove 102. As the insert rod 110 is inserted into the insertion hole 111, it compresses the limiting block 115, which in turn compresses the spring 114 (the spring force of the spring 114 is greater than the elastic force of the sealing gasket 106). When the annular limiting groove 112 corresponds to the position of the limiting block 115, the limiting block 115 pops out from the mounting hole 113 and enters the annular limiting groove 112. In step 2, the locking of the insert rod 110 is completed. Due to the presence of the guide surface 116, when removing the mounting cover, it is only necessary to pull out the mounting cover. Under the action of the guide surface 116, the upward compression of the insert rod 110 compresses the spring 114 and the limiting block 115, causing the limiting block 115 to disengage from the annular limiting groove 112, and finally completing the removal of the mounting cover. The advantage of this setting is that by limiting the insert rod 110, the sealing gasket 106 can be installed more stably in the gap between the drain cover 103 and the drain groove 102, thereby making the sealing effect of the sealing gasket 106 better.

[0040] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproofing structure for building structures, characterized in that, include: Installation recess, the installation recess being designed to be formed on the floor of a bathroom near a wall; The seepage prevention device is used to be installed inside the installation recess; The seepage prevention device includes a drainage trough, a drainage cover, and a sealing component. The drainage trough is installed inside the installation recess and is connected to the sewer through a pipe. The drainage cover is detachably installed on the drainage trough and has several drainage holes. The sealing component is installed between the upper surfaces of the drainage cover and the drainage trough and is tightly attached to the inner wall of the installation recess.

2. The anti-seepage structure of a house building according to claim 1, characterized in that: The sealing assembly includes a sealing groove and a sealing gasket. The sealing groove is disposed on the upper end surface of the drainage groove, and the sealing gasket is used to be installed inside the sealing groove. The drainage cover is used to detachably connect with the sealing groove after the sealing gasket is squeezed.

3. A building construction anti-seepage structure according to claim 2, characterized in that: A guide plate is provided below the drainage cover.

4. The anti-seepage structure of a house building according to claim 3, characterized in that: The guide plate is set at an angle, with the angle of the guide plate aligned with the upper opening of the drainage trough.

5. The anti-seepage structure of a house building according to claim 1, characterized in that: The drainage cover is equipped with a baffle plate with an inclined surface. The inclined surface is oriented towards the drainage hole, and the baffle plate is sealed to the wall.

6. The anti-seepage structure of a house building according to claim 2, characterized in that: The drain cover is detachably connected to the drain channel via a locking assembly.

7. A building construction anti-seepage structure according to claim 6, characterized in that: The locking assembly includes a plug rod and a socket. The plug rod is located at the bottom of the mounting cover, and the socket is located on the upper surface of the mounting groove. The plug rod has an annular limiting groove, and the socket has a mounting hole. An elastic element is installed inside the mounting hole. One end of the elastic element is connected to the bottom of the mounting hole, and the other end is connected to a limiting block. Both the limiting block and the annular limiting groove have guide surfaces. The cross-section of the limiting block has the same shape as the cross-section of the annular limiting groove, and the limiting block is used to be inserted into the annular limiting groove.

8. A building construction anti-seepage structure according to claim 7, characterized in that: The elastic element is a spring.

Citation Information

Patent Citations

  • Water seepage prevention structure of building outer wall

    CN222252573U