Precast concrete weathering structure

Abstract

The utility model relates to a kind of related technical field of rabbet line, more particularly to a kind of prefabricated concrete rabbet line waterproof structure, including prefabricated wall and cast-in-place concrete layer, the upper surface of cast-in-place concrete layer is fixedly connected with waterproof assembly, the right side of prefabricated wall is equipped with several round holes, the inner wall of round hole is inserted with firm component, waterproof assembly includes rabbet line body, the front of rabbet line body is equipped with right-angle groove, the inner wall of right-angle groove is fixedly connected with galvanized waterproof steel sheet.This kind of prefabricated concrete rabbet line waterproof structure, by the setting of waterproof assembly, when using, can form secondary waterproof effect by using rabbet line body and galvanized waterproof steel sheet, reduce the risk of water seepage between prefabrication and cast-in-place cold joint, so high precision, complete rabbet line is formed after concrete coagulation, continue with the lower rabbet of last layer prefabricated outer wall to form high-precision rabbet waterproof joint, to improve the waterproof effect of prefabricated wall after installation.

Description

Technical Field

[0001] This utility model relates to the technical field of tongue and groove joints, and in particular to a waterproof structure for precast concrete tongue and groove joints. Background Technology

[0002] As a conventional vertical precast component, precast exterior walls typically employ a tongue-and-groove joint waterproofing structure at their bottom joints, with the outer side lower than the inner side. This involves applying sealant to the outside and sealing the inside with mortar. This construction creates a tongue-and-groove shape at the horizontal joints of the precast exterior wall, with the inner side higher than the outer side. Utilizing the principle of natural water flow under gravity, this reduces the energy of rainwater movement, making it difficult for rainwater to transfer from the outside to the inside even if the outer material seal is compromised. Furthermore, the design incorporates pressure-reducing cavities to prevent water from seeping into the interior through capillary action.

[0003] However, the molding effect of cast-in-place tongue and groove joints in China is not good at present. The size, slope and flatness of the tongue and groove joints are difficult to guarantee, which makes it difficult for the bottom joint to achieve the waterproof effect required by the design. Therefore, water seepage is likely to occur after the precast wall is installed, resulting in poor waterproof effect of the precast wall. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof structure for precast concrete tongue and groove joints, in order to solve the problem mentioned in the background art that the existing cast-in-place tongue and groove joints have poor forming effect, making it difficult to guarantee their size, slope, and flatness, thus causing precast walls to be prone to water seepage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precast concrete tongue-and-groove waterproof structure, comprising a precast wall and a cast-in-place concrete layer, wherein a waterproof component is fixedly connected to the upper surface of the cast-in-place concrete layer, and a plurality of round holes are opened on the right side of the precast wall, wherein a stabilizing component is inserted into the inner wall of the round holes.

[0006] The waterproofing component is used to improve the waterproofing effect between the cast-in-place concrete layer and the precast wall, and the stabilizing component is used to improve the stability between the precast wall and the waterproofing component.

[0007] Preferably, the waterproof component includes a tongue and groove strip body, the front of which has a right-angle groove, and a galvanized waterproof steel plate is fixedly connected to the inner wall of the right-angle groove.

[0008] Preferably, the length of the tongue and groove strip body is the same as the length of the precast wall, the length of the galvanized waterproof steel plate is the same as the length of the tongue and groove strip body, the thickness of the galvanized waterproof steel plate is 1-3mm, the short side dimension of the galvanized waterproof steel plate is 20-30mm, the long side dimension of the galvanized waterproof steel plate is 45-50mm, the galvanized waterproof steel plate is embedded in the tongue and groove strip body for 25-30mm, and the exposed dimension of the galvanized waterproof steel plate is 15-20mm.

[0009] Preferably, the stabilizing component includes a stabilizing bolt, and a positioning nut is fixedly connected to the right end of the stabilizing bolt. The size of the positioning nut is smaller than the size of the circular hole.

[0010] Preferably, a stabilizing groove is provided on the lower surface of the precast wall at a position corresponding to the circular hole, and a positioning groove adapted to the stabilizing bolt is provided on the left inner wall of the stabilizing groove.

[0011] Preferably, a stabilizing block is fixedly connected to the upper surface of the tongue and groove body at the position corresponding to the stabilizing groove. The stabilizing block has a threaded hole on its side, which is adapted to the stabilizing bolt. A locking groove is provided on the upper surface of the stabilizing block.

[0012] Preferably, the inner top wall of the stabilizing groove is fixedly connected with a positioning block, the position of the positioning block corresponds to the position of the stabilizing block, and the positioning block is adapted to the locking groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This precast concrete tongue-and-groove waterproof structure, through the setting of waterproof components, can form a secondary waterproof effect using the tongue-and-groove line body and galvanized waterproof steel plate during use, reducing the risk of water seepage from the cold joint between precast and cast-in-place. After the concrete sets, a high-precision, complete tongue-and-groove line is formed, which continues to form a high-precision tongue-and-groove waterproof joint with the lower tongue-and-groove of the upper layer of precast exterior wall, thereby improving the waterproof effect of the precast wall after installation. In addition, through the setting of stabilizing components, the stabilizing blocks, positioning blocks, stabilizing grooves, stabilizing bolts, and positioning grooves can limit the precast wall during use, ensuring the stability of the precast wall during and after installation, preventing any displacement or tilting. At the same time, it can also ensure that the pressure of the precast wall and the cast-in-place concrete layer remains consistent, ensuring the installation accuracy of the precast wall. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0016] Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of this utility model;

[0017] Figure 4 This is a partial cross-sectional view of the present invention.

[0018] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0019] In the diagram: 1. Precast wall; 2. Cast-in-place concrete layer; 3. Waterproof component; 4. Round hole; 5. Stabilizing component; 301. Tongue and groove strip body; 302. Right angle groove; 303. Galvanized waterproof steel plate; 501. Stabilizing bolt; 502. Positioning nut; 503. Stabilizing groove; 504. Positioning groove; 505. Stabilizing insert; 506. Threaded hole; 507. Locking groove; 508. Positioning insert. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a precast concrete tongue and groove waterproof structure, including a precast wall 1 and a cast-in-place concrete layer 2. A waterproof component 3 is fixedly connected to the upper surface of the cast-in-place concrete layer 2. Several round holes 4 are opened on the right side of the precast wall 1, and a stabilizing component 5 is inserted into the inner wall of the round holes 4.

[0022] The waterproof component 3 is used to improve the waterproof effect between the cast-in-place concrete layer 2 and the precast wall 1, and the stabilizing component 5 is used to improve the stability between the precast wall 1 and the waterproof component 3.

[0023] Furthermore, the waterproof component 3 includes a tongue-and-groove strip body 301. A right-angle groove 302 is formed on the front side of the tongue-and-groove strip body 301. A galvanized waterproof steel plate 303 is fixedly connected to the inner wall of the right-angle groove 302. The length of the tongue-and-groove strip body 301 is the same as the length of the precast wall 1. The length of the galvanized waterproof steel plate 303 is the same as the length of the tongue-and-groove strip body 301. The thickness of the galvanized waterproof steel plate 303 is 1–3 mm. The short side dimension of the galvanized waterproof steel plate 303 is 20–30 mm, and the long side dimension of the galvanized waterproof steel plate 303 is 45–50 mm. The exposed dimension of 303 is 15-20mm. The tongue and groove strip body 301 is directly fixed to the cast-in-place concrete layer 2. At this time, the galvanized waterproof steel plate 303 can be inserted into the cast-in-place concrete layer 2. While playing a fixing role, the galvanized waterproof steel plate 303 also combines with the cast-in-place concrete layer 2 to form secondary waterproofing, reducing the risk of water seepage from the cold joint between precast and cast-in-place. After the cast-in-place concrete layer 2 solidifies, a high-precision and complete tongue and groove strip is formed, which continues to form a high-precision tongue and groove waterproof joint with the lower tongue and groove of the upper precast wall 1, thereby improving the waterproofing effect of the precast wall 1.

[0024] Furthermore, the stabilizing component 5 includes a stabilizing bolt 501, with a positioning nut 502 fixedly connected to the right end of the stabilizing bolt 501. The size of the positioning nut 502 is smaller than the size of the circular hole 4. Stabilizing grooves 503 are formed on the lower surface of the precast wall 1 at positions corresponding to the circular hole 4. A positioning groove 504 adapted to the stabilizing bolt 501 is formed on the left inner wall of the stabilizing groove 503. Stabilizing inserts 505 are fixedly connected to the upper surface of the tongue and groove strip body 301 at positions corresponding to the stabilizing grooves 503. Threaded holes 506 are formed on the side of the stabilizing inserts 505, which are adapted to the stabilizing bolt 501. A locking groove 507 is formed on the upper surface of the stabilizing inserts 505. A positioning insert 508 is fixedly connected to the inner top wall of the stabilizing groove 503. The position of the positioning insert 508 corresponds to the position of the stabilizing insert 505, and the positioning insert 508 and the positioning bolt 505 are fixedly connected to the stabilizing bolt 505. The locking groove 507 is compatible, and the precast wall 1 can be inserted into the surface of each stabilizing block 505 above the tongue and groove strip body 301 through the bottom stabilizing groove 503. After the stabilizing block 505 is inserted into the stabilizing groove 503, the positioning block 508 can be inserted into the locking groove 507 to initially lock the position of the stabilizing block 505. At this time, the stabilizing bolt 501 is inserted into the stabilizing groove 503 through the round hole 4, and the stabilizing bolt 501 is rotated by the positioning nut 502 so that it passes through the threaded hole 506 and is inserted into the positioning groove 504, thereby ensuring that the position of the stabilizing block 505 in the stabilizing groove 503 will not shift. The position of the stabilizing block 505 in the stabilizing groove 503 can ensure the connection stability between the precast wall 1 and the tongue and groove strip body 301, and there will be no shifting or tilting, making the precast wall 1 more stable during installation.

[0025] Working principle: During the assembly of precast wall 1, the tongue and groove strip body 301 is first directly fixed to the cast-in-place concrete layer 2. At this time, the galvanized waterproof steel plate 303 can be inserted into the cast-in-place concrete layer 2. Before the initial setting of the cast-in-place concrete layer 2, the tongue and groove strip body 301 is pressed into the cast-in-place concrete layer 2 along the bottom of the outer wall, ensuring that the top surface of the strip is flat. The protruding part of the galvanized waterproof steel plate 303 is completely embedded in the cast-in-place concrete layer 2. While playing a fixing role, the galvanized waterproof steel plate 303 also combines with the cast-in-place concrete layer 2 to form secondary waterproofing, reducing the risk of water seepage from the cold joint between precast and cast-in-place. After the cast-in-place concrete layer 2 sets, a high-precision and complete tongue and groove strip is formed, which continues to form a high-precision tongue and groove waterproof joint with the lower tongue and groove of the upper layer of precast wall 1, thereby improving the waterproofing effect of precast wall 1. In addition, during the installation of precast wall 1, the precast... Each stabilizing groove 503 at the bottom of the wall 1 is aligned with each stabilizing block 505, and each stabilizing block 505 is inserted into the stabilizing groove 503. After insertion, the positioning block 508 can be inserted into the locking groove 507 on the upper surface of the stabilizing block 505, thus initially positioning the stabilizing block 505. At this time, the stabilizing bolt 501 is inserted into the stabilizing groove 503 through the round hole 4, and the stabilizing bolt 501 is rotated by the positioning nut 502 so that it passes through the threaded hole 506 and is inserted into the positioning groove 504, thus locking the position of the stabilizing block 505. The position of the stabilizing block 505 in the stabilizing groove 503 can ensure the connection stability between the precast wall 1 and the tongue and groove strip body 301, and prevent it from easily tilting. At the same time, it can also keep the pressure of the precast wall 1 on the cast-in-place concrete layer 2 consistent, increasing the accuracy of the precast wall 1 during installation.

[0026] 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 precast concrete tongue-and-groove waterproof structure, comprising a precast wall (1) and a cast-in-place concrete layer (2), characterized in that: A waterproof component (3) is fixedly connected to the upper surface of the cast-in-place concrete layer (2), and a number of round holes (4) are opened on the right side of the precast wall (1), with a stabilizing component (5) inserted into the inner wall of the round hole (4). The waterproof component (3) is used to improve the waterproof effect between the cast-in-place concrete layer (2) and the precast wall (1), and the stabilizing component (5) is used to improve the stability between the precast wall (1) and the waterproof component (3).

2. The precast concrete tongue-and-groove waterproof structure according to claim 1, characterized in that: The waterproof component (3) includes a tongue and groove strip body (301), and a right-angle groove (302) is provided on the front side of the tongue and groove strip body (301). A galvanized waterproof steel plate (303) is fixedly connected to the inner wall of the right-angle groove (302).

3. The precast concrete tongue-and-groove waterproof structure according to claim 2, characterized in that: The length of the tongue and groove strip body (301) is the same as the length of the precast wall (1), and the length of the galvanized waterproof steel plate (303) is the same as the length of the tongue and groove strip body (301).

4. The precast concrete tongue-and-groove waterproof structure according to claim 1, characterized in that: The stabilizing component (5) includes a stabilizing bolt (501), and a positioning nut (502) is fixedly connected to the right end of the stabilizing bolt (501). The size of the positioning nut (502) is smaller than the size of the round hole (4).

5. A precast concrete tongue-and-groove waterproof structure according to claim 1, characterized in that: The lower surface of the precast wall (1) is provided with a stabilizing groove (503) at the position corresponding to the round hole (4), and the left inner wall of the stabilizing groove (503) is provided with a positioning groove (504) that is compatible with the stabilizing bolt (501).

6. A precast concrete tongue-and-groove waterproof structure according to claim 2, characterized in that: The upper surface of the tongue and groove strip body (301) is fixedly connected with a stabilizing block (505) at a position corresponding to the stabilizing groove (503). The side of the stabilizing block (505) is provided with a threaded hole (506), which is compatible with the stabilizing bolt (501). The upper surface of the stabilizing block (505) is provided with a locking groove (507).

7. A precast concrete tongue-and-groove waterproof structure according to claim 5, characterized in that: The inner top wall of the stabilizing groove (503) is fixedly connected with a positioning plug (508). The position of the positioning plug (508) corresponds to the position of the stabilizing plug (505), and the positioning plug (508) is adapted to the locking groove (507).

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