Building basement roof waterproof structure
By using horizontal fixing components and vertical support components with sleeve and threaded rod structures, the problem of complicated installation of basement roof waterproofing structures is solved, enabling a fast and flexible installation process and avoiding damage to the roof.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国水电建设集团十五工程局有限公司
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, the installation process of waterproof structures for basement roof slabs is cumbersome, requiring pre-design of anchor array spacing, which results in insufficient installation flexibility.
The transverse fastener, which uses a sleeve and threaded rod structure, can be quickly installed on the side wall of the groove by screwing the threaded rod. Combined with the vertical support and flow guide components, the installation process is simplified and damage to the top plate is avoided.
It enables quick and flexible installation, avoids damage to the top plate, simplifies installation steps, and improves installation efficiency.
Smart Images

Figure CN224148781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building waterproofing technology, specifically a waterproofing structure for the roof slab of a building basement. Background Technology
[0002] Basements in buildings are typically used as garages. To prevent rainwater and surface water from seeping into the basement, the basement ceiling needs to be waterproofed. This is usually achieved by spraying waterproof adhesive, applying waterproof fabric, or laying waterproof membrane to improve the waterproof performance of the building's ceiling.
[0003] Chinese patent application date: June 19, 2022, publication number: CN217998197U, discloses a waterproof structure for a basement roof slab, comprising: a groove formed below an expansion joint in the basement roof slab; a filling layer disposed within the expansion joint; two first angle steels, respectively disposed on both sides of the groove, each first angle steel including a first horizontal portion and a first vertical portion, the first horizontal portion abutting the top of the groove and the first vertical portion abutting the side of the groove; a rubber waterstop laid along the length of the expansion joint at the top of the groove, the rubber waterstop being connected to the first horizontal portion of the two first angle steels via multiple first anchors; and a stainless steel cover plate disposed within the groove along the length of the expansion joint, the stainless steel cover plate being connected to the first vertical portion of the two first angle steels via multiple second anchors. The beneficial effects of this invention are: it can not only serve as an installation support structure for the rubber waterstop and the stainless steel cover plate, but also, in conjunction with the rubber waterstop, further enhance the waterproofing effect.
[0004] In this technical solution, by pre-embedding the first and second anchors within the building's roof slab, the array spacing of the first and second anchors needs to be pre-designed to facilitate the subsequent installation of the rubber waterstop and stainless steel cover plate. This makes the pre-installation of the anchors rather cumbersome and the installation process less flexible, thus warranting further improvement. Summary of the Invention
[0005] The purpose of this utility model is to provide a waterproof structure for the roof of a building basement to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof structure for the roof slab of a building basement, comprising a basement roof slab, wherein an expansion joint between the basement roof slabs is provided with a filling layer, and a groove is provided at the bottom of each of the two basement roof slabs on opposite sides, wherein a rubber waterproof strip is provided on the top wall of the groove, a horizontal fixing member is attached to the side wall of the groove, a vertical support member is provided on the horizontal fixing member, the vertical support member is attached to the bottom of the rubber waterproof strip, and a flow guiding component is provided on the lower side of the horizontal fixing member.
[0007] Based on the above, the transverse fixing component includes a sleeve, with a first nut fixedly installed at both ends of the sleeve. Each of the two first nuts is threadedly connected to a threaded rod. One end of the threaded rod is inserted into the sleeve, and a pressure plate is fixedly installed at the other end of the threaded rod. The pressure plate is attached to the side wall of the groove.
[0008] Based on the above, the sleeve is provided with an insert rod, a turntable is fixedly installed in the middle of the insert rod, and two annular flanges are fixedly installed in the middle of the inner wall of the sleeve. The two annular flanges are respectively clamped on the left and right sides of the turntable. The insert rod has a rectangular cross-section, and a sliding groove is opened at the center of the threaded rod. The threaded rod is slidably connected to the insert rod through the sliding groove.
[0009] Based on the above, the vertical support includes a support plate that fits against the bottom of the rubber waterproof tape. Support rods are fixedly installed at the bottom of both ends of the support plate, and the support rods are threaded. Supports are fixedly installed on the front and rear sides of both ends of the sleeve. The supports are provided with mounting holes, and the support rods are inserted into the mounting holes. A limit ring is fixedly installed at the bottom of the support. The limit ring has an L-shaped cross-section, and a rotating ring is rotatably connected inside the limit ring. A second nut is fixedly installed at the bottom of the rotating ring, and the second nut is threadedly connected to the support rod.
[0010] Based on the above, a first extension plate is provided at the upper front end of the pallet, and a second extension plate is provided at the lower rear end of the pallet. The first extension plate and the second extension plate have the same thickness, and both are less than half the thickness of the pallet.
[0011] Based on the above, an adhesive layer is provided between the rubber waterproof tape and the top wall of the groove.
[0012] Based on the above, the flow guiding component includes a U-shaped groove, a contraction section is provided at the rear end of the U-shaped groove, and clearance grooves are provided through the left and right sides of the U-shaped groove and the contraction section. The width of the clearance groove is equal to the diameter of the pressure plate, and a flow guiding pipe is provided at the bottom of one of the U-shaped grooves.
[0013] Compared with the prior art, the advantages of this utility model are: by screwing the threaded rod, the horizontal fixing part can be horizontally fixed between the side walls of the groove. The installation process is convenient and quick, will not damage the basement ceiling, and does not require prior measurement or position restrictions on the horizontal fixing part. The installation process is more flexible and has the advantages of convenient and quick installation and flexible installation process. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a structural schematic diagram of the transverse fixing component of this utility model.
[0016] Figure 3 This is a utility model Figure 2 A detailed magnified structural diagram of point A in the middle.
[0017] Figure 4 This is a right-side structural schematic diagram of the vertical support component of this utility model.
[0018] Figure 5 This is a right-side structural schematic diagram of the flow guiding component of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 100, basement roof slab; 200, filling layer; 300, groove; 400, rubber waterproof tape; 500, horizontal fastener; 600, vertical support; 700, flow guiding component; 800, adhesive layer;
[0020] 501. Sleeve; 502. First nut; 503. Threaded rod; 504. Pressure plate; 505. Insert rod; 506. Turntable; 507. Annular flange;
[0021] 601. Support plate; 602. Support rod; 603. Support; 604. Limiting ring; 605. Rotating ring; 606. Second nut; 607. First extension plate; 608. Second extension plate;
[0022] 701. U-shaped groove; 702. Contraction section; 703. Clearance groove; 704. Guide pipe. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1-5As shown, a waterproof structure for a basement roof slab includes a basement roof slab 100. An expansion joint between the basement roof slabs 100 is filled with a polyurethane foam filling layer 200. Each of the two basement roof slabs 100 has a groove 300 on its opposite bottom side. A rubber waterproof strip 400 is installed on the top wall of the groove 300. Horizontal fasteners 500 are attached to the side walls of the grooves 300, with the number and spacing of the horizontal fasteners 500 determined according to the size of the grooves. Vertical supports 600 are installed on the horizontal fasteners 500 and are attached to the bottom of the rubber waterproof strip 400. A flow guiding component 700 is installed below the horizontal fasteners 500. An adhesive layer 800 is provided between the rubber waterproof strip 400 and the top wall of the groove 300. The adhesive layer 800 can be made of waterproof adhesive, asphalt, etc., to prevent gaps from forming between the rubber waterproof strip 400 and the groove 300.
[0025] In use, the transverse fixing component 500 includes a sleeve 501, with a first nut 502 fixedly installed at both ends of the sleeve 501. Each of the two first nuts 502 is threadedly connected to a threaded rod 503. One end of the threaded rod 503 is inserted into the sleeve 501, and the other end is fixedly fitted with a pressure plate 504, which adheres to the side wall of the groove 300. This allows for less specific restriction on the exact position of the transverse fixing component 500 during installation. By tightening the threaded rod 503, the overall length of the sleeve 501 and the threaded rod 503 is increased, causing the two pressure plates 504 to press tightly against the side wall of the groove 300. The pressure between the pressure plates 504 and the side wall of the groove 300 ensures that the transverse fixing component 500 is positioned below the expansion joint. The installation process is relatively convenient and quick, requiring no pre-embedded anchor rods or other structures, and will not damage the basement ceiling slab 100.
[0026] In practice, the sleeve 501 contains an insert rod 505, with a turntable 506 fixedly mounted in the middle of the insert rod 505. Two annular flanges 507 are fixedly mounted in the middle of the inner wall of the sleeve 501, clamping the turntable 506 on the left and right sides respectively. The insert rod 505 has a rectangular cross-section, and a groove is formed at the center of the threaded rod 503, which is slidably connected to the insert rod 505 through the groove. Thus, when one of the threaded rods 503 is rotated, the insert rod 505 and the turntable 506 rotate together, thereby driving the other threaded rod 503 to rotate synchronously, allowing the two threaded rods 503 to move synchronously relative to the sleeve 501. When the pressure plate 504 is against the side wall of the groove 300, the middle position of the sleeve 501 can coincide with the middle of the expansion joint. Even if there is a certain error between the first nuts 502 at both ends, the center of the sleeve 501 and the middle of the expansion joint will not have excessive offset.
[0027] Specifically, the vertical support 600 includes a support plate 601 that fits against the bottom of the rubber waterproof tape 400. Support rods 602 are fixedly installed at both ends of the support plate 601, and the support rods 602 are threaded. Supports 603 are fixedly installed on the front and rear sides of both ends of the sleeve 501. Depending on the size of the groove, multiple sets of supports 603 can be spaced apart on the sleeve 501 in addition to the ends of the sleeve 501 to prevent the middle of the support plate 601 from being recessed. The support 603 is provided with mounting holes, and the support rods 602 are inserted into the mounting holes. A limiting ring 604 is fixedly installed at the bottom of the support 603. The limiting ring 604 has an L-shaped cross-section, and a rotating ring 605 is rotatably connected inside the limiting ring 604. A second nut 606 is fixedly installed at the bottom of the rotating ring 605, and the second nut 606 is threadedly connected to the support rod 602. By tightening the second nut 606, the support rod 602 is moved upward, causing the pallet 601 to move upward and press against the bottom of the rubber waterproof strip 400, thus supporting and reinforcing the rubber waterproof strip 400. A certain gap exists between the limiting ring 604 and the rotating ring 605, allowing the rotating ring 605 to move a certain distance vertically relative to the limiting ring 604. When the second nut 606 is tightened, causing the two support rods 602 to rise unequal distances simultaneously, the pallet 601 and the support rods 602 will not jam. A first extension plate 607 is provided at the upper front end of the pallet 601, and a second extension plate 608 is provided at the lower rear end of the pallet 601. The first extension plate 607 and the second extension plate 608 have equal thicknesses and are both less than half the thickness of the pallet 601. Thus, when laying the rubber waterproof strip 400 from back to front, the support plate 601 can be installed sequentially from back to front, and the two adjacent support plates 601 can be overlapped through the first extension plate 607 and the second extension plate 608.
[0028] In practice, the flow guiding component 700 includes a U-shaped channel 701 with a constriction section 702 at its rear end. The constriction section 702 can be inserted into the front end of the U-shaped channel 701 to connect adjacent U-shaped channels 701. After the constriction section 702 is inserted into the U-shaped channel 701, the gap between the U-shaped channel 701 and the constriction section 702 can be welded and sealed. Both sides of the U-shaped channel 701 and the constriction section 702 have through-holes 703. The width of the through-holes 703 is equal to the diameter of the pressure plate 504. During installation, the U-shaped channel 701 is manually lifted upwards and moved along the front-back direction, causing the pressure plate 504 to be inserted into the through-holes 703, thereby supporting the U-shaped channel 701. At least one of the U-shaped channels 701 has a flow guiding pipe 704 at its bottom for draining leaked water.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A waterproof structure for the roof slab of a building basement, characterized in that: The system includes a basement roof slab (100), and an expansion joint between the basement roof slabs (100) is provided with a filling layer (200). The bottom of each of the two basement roof slabs (100) on opposite sides is provided with a groove (300). A rubber waterproof strip (400) is provided on the top wall of the groove (300). A horizontal fixing member (500) is attached to the side wall of the groove (300). A vertical support member (600) is provided on the horizontal fixing member (500). The vertical support member (600) is attached to the bottom of the rubber waterproof strip (400). A flow guiding component (700) is provided on the lower side of the horizontal fixing member (500).
2. The waterproof structure of a basement roof of a building according to claim 1, characterized in that: The transverse fixing member (500) includes a sleeve (501), and a first nut (502) is fixedly installed at both ends of the sleeve (501). The two first nuts (502) are threadedly connected to a threaded rod (503). One end of the threaded rod (503) is inserted into the sleeve (501), and a pressure plate (504) is fixedly installed at the other end of the threaded rod (503). The pressure plate (504) is attached to the side wall of the groove (300).
3. The waterproof structure of a basement roof of a building according to claim 2, characterized in that: The sleeve (501) is provided with a plug rod (505) inside. A turntable (506) is fixedly installed in the middle of the plug rod (505). Two annular flanges (507) are fixedly provided in the middle of the inner wall of the sleeve (501). The two annular flanges (507) are respectively clamped on the left and right sides of the turntable (506). The plug rod (505) has a rectangular cross-section. A sliding groove is provided at the center of the threaded rod (503). The threaded rod (503) is slidably connected to the plug rod (505) through the sliding groove.
4. The waterproof structure of a basement roof of a building according to claim 2, characterized in that: The vertical support member (600) includes a support plate (601) attached to the bottom of the rubber waterproof tape (400), and support rods (602) are fixedly installed at both ends of the support plate (601), and the support rods (602) are provided with threads; Supports (603) are fixedly installed on the front and rear sides of both ends of the sleeve (501). The support (603) is provided with mounting holes. The support rod (602) is inserted into the mounting holes. A limiting ring (604) is fixedly installed at the bottom of the support (603). The limiting ring (604) has an L-shaped cross-section. A rotating ring (605) is rotatably connected inside the limiting ring (604). A second nut (606) is fixedly installed at the bottom of the rotating ring (605). The second nut (606) is threadedly connected to the support rod (602).
5. The waterproof structure of a basement roof of a building according to claim 4, characterized in that: The upper front end of the tray (601) is provided with a first extension plate (607), and the lower rear end of the tray (601) is provided with a second extension plate (608). The first extension plate (607) and the second extension plate (608) have the same thickness and are both less than half the thickness of the tray (601).
6. The waterproof structure of a basement roof of a building according to claim 4, characterized in that: An adhesive layer (800) is provided between the rubber waterproof tape (400) and the top wall of the groove (300).
7. The waterproof structure of a basement roof of a building according to claim 1, characterized in that: The flow guide assembly (700) comprises a U-shaped groove (701), the rear end of the U-shaped groove (701) is provided with a contraction part (702), the left and right sides of the U-shaped groove (701) and the contraction part (702) are both provided with an avoiding groove (703), the width of the avoiding groove (703) is equal to the diameter of the pressure plate (504), and one bottom of the U-shaped groove (701) is provided with a flow guide pipe (704).
Citation Information
Patent Citations
Basement top plate waterproof structure
CN217998197U