A waterproof structure for prefabricated staircase joints

Abstract

This utility model discloses a waterproof structure for prefabricated stair joints, belonging to the field of waterproof technology for prefabricated stair joints. The surface of the waterproof structure body is detachably connected to a floor slab body and a prefabricated stair body. The floor slab body and the prefabricated stair body are spliced ​​and fixed together, forming a joint. The inner wall of the joint is slidably connected to the surface of the waterproof structure body. This waterproof structure for prefabricated stair joints, through the installation of a waterproof board, a first sealing strip, and a second sealing strip, can seal the joint from different surfaces. Simultaneously, the sealing effect of the first and second sealing strips can be enhanced through connecting holes and fillers, thereby ensuring the waterproof stability of the structure. Furthermore, the drainage channels and drainage holes in the waterproof board can drain water entering the joint. The waterproof board can be installed and removed from one end of the joint, ensuring a firm and stable installation and facilitating future maintenance, thus improving the convenience of the waterproof structure.

Description

Technical Field

[0001] This utility model relates to the field of waterproofing technology for prefabricated staircase joints, and more specifically, to a waterproofing structure for prefabricated staircase joints. Background Technology

[0002] Staircases are components used for vertical transportation between floors in a building, serving as links between floors and connecting areas with significant height differences.

[0003] Currently, it is common practice to waterproof the joints of prefabricated stairs and floor slabs after they are spliced ​​together. However, common waterproofing structures have poor waterproofing effect and are not easy to maintain later. For example, the waterproofing structure for the joints of prefabricated stairs disclosed in announcement number CN222716251U includes a floor slab body and a prefabricated stairs body. The top of the floor slab body and the prefabricated stairs body is provided with a waterproofing structure. The waterproofing structure includes a waterproofing plate set at the top of the floor slab body and the prefabricated stairs body. The waterproofing plate includes an anti-slip layer, a wear-resistant layer, a corrosion-resistant layer, a waterproof coating, a waterproof membrane and a base plate. The waterproofing structure also includes connecting components set on the waterproofing plate for connecting the floor slab body and the prefabricated stairs body.

[0004] As can be seen from the above-mentioned publicly available scheme, the waterproof membrane is installed at the top of the main floor slab and the precast staircase. Since people often walk on the stairs, they will often kick the protruding waterproof membrane, which will cause the connecting block and the connecting groove to separate, reducing the installation firmness and stability of the waterproof membrane. This will result in gaps between the bottom of the waterproof membrane and the sealing area of ​​the main floor slab and the surface of the precast staircase, greatly reducing the sealing effect. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a waterproof structure for prefabricated stair joints. This waterproof structure, through the installation of a waterproof board, a first sealing strip, and a second sealing strip, can seal the joint from different sides. Simultaneously, the sealing effect of the first and second sealing strips can be enhanced through connecting holes and fillers, thereby ensuring the waterproof stability of the structure. Furthermore, the drainage channels and holes in the waterproof board can drain water entering the joint. The waterproof board can be installed and removed from one end of the joint, ensuring a secure and stable installation and facilitating future maintenance, thus improving the convenience of the waterproof structure.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A waterproof structure for prefabricated stair joints includes a waterproof structure body. A floor slab body and a prefabricated stair body are detachably connected to the surface of the waterproof structure body. The floor slab body and the prefabricated stair body are spliced ​​and fixed together, forming a joint. The inner wall of the joint is slidably connected to the surface of the waterproof structure body. The waterproof structure body includes a waterproof plate with drainage holes on its end face. One end of each drainage hole is detachably connected to a drainage pipe. This waterproof structure for prefabricated stair joints seals the joint from different sides through the waterproof plate, a first sealing strip, and a second sealing strip. The connecting holes and filler enhance the sealing effect of the first and second sealing strips, ensuring the waterproof stability of the structure. The drainage channels and holes in the waterproof plate allow water entering the joint to be drained. Furthermore, the waterproof plate can be installed and removed from one end of the joint, ensuring a secure and stable installation and facilitating future maintenance, thus improving the convenience of the waterproof structure.

[0008] Furthermore, the splice seam includes a first sealing groove and a second sealing groove. The inner side wall of the first sealing groove has a first slot, and the inner side wall of the second sealing groove has a second slot. The first sealing groove, the first slot, the second sealing groove, and the second slot enable the waterproof structure to have multiple sealing surfaces for sealing and waterproofing, thereby improving the waterproofing effect.

[0009] Furthermore, the waterproof membrane is fixedly connected to a first sealing strip and a second sealing strip that are radially symmetrical. Both the first and second sealing strips are made of corrosion-resistant sealing rubber. The first and second sealing strips have elastic expansion and contraction functions, which facilitates engagement with the first and second slots. At the same time, the elasticity can fix the installation position of the waterproof membrane.

[0010] Furthermore, both the first and second sealing strips have equally spaced connecting holes on their surfaces. One end of each connecting hole is fixedly connected to a filling groove, which is filled with a filler material that expands upon contact with water. This causes the first and second sealing strips to expand, increasing their compression against the inner walls of the first and second slots, thereby greatly enhancing their sealing and waterproofing performance.

[0011] Furthermore, one end of the guide hole is fixedly connected to a guide groove, and the inner wall of the guide groove has side holes. The side holes are evenly distributed along the length of the waterproof membrane, and one end of the side holes is connected to the filling groove to facilitate the drainage of water in the filling groove.

[0012] Furthermore, the inner wall of the first slot is movably connected to the surface of the first sealing strip, and the inner wall of the second slot is movably connected to the surface of the second sealing strip, which can prevent the waterproof membrane from moving upward and has a limiting function, ensuring that the waterproof membrane is installed firmly and stably.

[0013] Furthermore, the surface of the waterproof membrane is fixedly connected with anti-slip strips that are evenly distributed. The anti-slip strips can prevent the surface of the waterproof membrane from slipping, and at the same time facilitate the axial removal of the waterproof membrane by hand.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) The waterproof membrane, first sealing strip and second sealing strip set in this solution can seal the splice seam through different faces. At the same time, the sealing effect of the first sealing strip and the second sealing strip can be increased through the connecting hole and the filler, thereby ensuring the waterproof stability of the waterproof structure.

[0016] (2) This solution can drain water entering the splice through the drainage channel and drainage hole set in the waterproof membrane. Moreover, the waterproof membrane can be installed and removed from one end of the splice, which is firm and stable, and facilitates later maintenance, thus improving the convenience of the waterproof structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the waterproof structure body of this utility model;

[0019] Figure 3 for Figure 2 Cross-sectional view of the waterproof membrane;

[0020] Figure 4 This is a schematic diagram of the splicing structure of the floor slab body and the prefabricated staircase body of this utility model.

[0021] Figure 5 for Figure 4 A front view of the splicing seam structure.

[0022] Explanation of the labels in the diagram:

[0023] 1. Waterproof structural body; 2. Floor slab body; 3. Precast staircase body; 4. Joint; 41. First sealing groove; 42. First slot; 43. Second sealing groove; 44. Second slot; 5. Waterproof membrane; 51. Drainage channel; 52. Drainage hole; 53. Side hole; 54. First sealing strip; 55. Connecting hole; 56. Filling groove; 57. Filler; 58. Second sealing strip; 59. Anti-slip strip. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figure 1-5 A waterproof structure for a precast staircase joint includes a waterproof structure body 1. A floor slab body 2 and a precast staircase body 3 are detachably connected to the surface of the waterproof structure body 1. The floor slab body 2 and the precast staircase body 3 are spliced ​​and fixed together. The splicing structure and connection method of the floor slab body 2 and the precast staircase body 3 are existing technologies and well-known to those skilled in the art, and will not be described in detail here. A joint 4 is enclosed within the structure. The joint 4 includes a first sealing groove 41 and a second sealing groove 43. A first slot 42 is formed on the inner side wall of the first sealing groove 41, and a second slot 44 is formed on the inner side wall of the second sealing groove 43. The first sealing groove 41, the first slot 42, the second sealing groove 43, and the second slot 44 provide multiple sealing surfaces for waterproofing, improving the waterproofing effect. The inner wall of the splice seam 4 is slidably connected to the surface of the waterproof structure body 1. The waterproof structure body 1 includes a waterproof board 5. The waterproof board 5 is made of polytetrafluoroethylene, which is not only wear-resistant and corrosion-resistant, but also has a low coefficient of thermal expansion and contraction, making the waterproof board 5 have excellent dimensional stability in temperature change environments. The surface of the waterproof board 5 is fixedly connected with anti-slip strips 59 distributed at equal intervals. The anti-slip strips 59 can prevent the surface of the waterproof board 5 from slipping, and at the same time facilitate the palm to axially remove the waterproof board 5. The surface of the waterproof board 5 contacts and is pressed against the inner walls of the first sealing groove 41 and the second sealing groove 43. The end face of the waterproof board 5 has a guide hole 52. The guide hole 52 is located on the side of the prefabricated stair body 3 away from the wall. One end of the guide hole 52 is detachably connected to a drainage pipe, so that the water is discharged directly through the drainage pipe and will not re-enter the gap.

[0027] The waterproof membrane 5 is fixedly connected to the sides with a radially symmetrical first sealing strip 54 and a radially symmetrical second sealing strip 58. Both the first sealing strip 54 and the second sealing strip 58 are made of corrosion-resistant sealing rubber. The first sealing strip 54 and the second sealing strip 58 have elastic expansion and contraction functions, which facilitates the engagement with the first slot 42 and the second slot 44. At the same time, the elasticity can fix the installation position of the waterproof membrane 5. The surfaces of the first sealing strip 54 and the second sealing strip 58 are opened with equally spaced connecting holes 55. One end of the connecting hole 55 is fixedly connected to a filling groove 56. The filling groove 56 is filled with a filler 57, which is a water-swellable particle. The water-swellable particle is a polyurethane-based water-swellable particle that can be reused. It can expand after contact with water, thereby causing the first sealing strip 54 and the second sealing strip 58 to expand, increasing the compression with the inner walls of the first slot 42 and the second slot 44, and thus greatly enhancing the sealing and waterproofing performance.

[0028] One end of the guide hole 52 is fixedly connected to the guide groove 51. The inner wall of the guide groove 51 has side holes 53. The side holes 53 are evenly distributed along the length of the waterproof plate 5. One end of the side holes 53 is connected to the filling groove 56 to facilitate the drainage of water in the filling groove 56. The inner wall of the first slot 42 is movably connected to the surface of the first sealing strip 54. The inner wall of the second slot 44 is movably connected to the surface of the second sealing strip 58, which can prevent the waterproof plate 5 from moving upward and has a limiting function to ensure that the waterproof plate 5 is installed firmly and stably.

[0029] When installing the waterproof structure of the prefabricated staircase joint, the waterproof board 5 can be horizontally inserted from the end of the joint 4 away from the wall, so that the first sealing strip 54 is inserted into the first groove 42 and the second sealing strip 58 is inserted into the second groove 44. At the same time, the elasticity of the first sealing strip 54 and the second sealing strip 58 fixes their installation position. When people kick the anti-slip strip 59, the waterproof board 5 will only shake radially and will not fall out of the joint 4. When encountering water flow, the two sides of the waterproof board 5 are squeezed and sealed against the inner walls of the first sealing groove 41 and the second sealing groove 43. The first sealing strip 54 and the second sealing strip 58 are squeezed and sealed against the inner walls of the first groove 42 and the second groove 44, respectively. At the same time, when water enters the filling groove 56 through the connecting hole 55 and comes into contact with the filler 57, it expands, which in turn causes the first sealing strip 54 and the second sealing strip 58 to expand and improve the sealing effect.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A waterproof structure for prefabricated staircase joints, comprising a waterproof structure body (1), wherein a floor slab body (2) and a prefabricated staircase body (3) are detachably connected to the surface of the waterproof structure body (1), characterized in that: The floor slab body (2) and the prefabricated stair body (3) are spliced ​​and fixed together, and are surrounded by a splicing seam (4). The inner wall of the splicing seam (4) is slidably connected to the surface of the waterproof structure body (1). The waterproof structure body (1) includes a waterproof plate (5). The end face of the waterproof plate (5) has a drainage hole (52). One end of the drainage hole (52) is detachably connected to a drainage pipe.

2. The waterproof structure for prefabricated staircase joints according to claim 1, characterized in that: The splice seam (4) includes a first sealing groove (41) and a second sealing groove (43). The inner side wall of the first sealing groove (41) has a first slot (42), and the inner side wall of the second sealing groove (43) has a second slot (44).

3. The waterproof structure for prefabricated staircase joints according to claim 1, characterized in that: The waterproof membrane (5) is fixedly connected to a first sealing strip (54) and a second sealing strip (58) that are radially symmetrical. Both the first sealing strip (54) and the second sealing strip (58) are made of corrosion-resistant sealing rubber.

4. The waterproof structure for prefabricated staircase joints according to claim 3, characterized in that: The surfaces of the first sealing strip (54) and the second sealing strip (58) are provided with equally spaced connecting holes (55), one end of which is fixedly connected to a filling groove (56), and the interior of the filling groove (56) is filled with filler (57).

5. The waterproof structure for prefabricated staircase joints according to claim 1, characterized in that: One end of the guide hole (52) is fixedly connected to the guide groove (51), and the inner wall of the guide groove (51) has side holes (53), which are evenly distributed along the length of the waterproof plate (5).

6. The waterproof structure for prefabricated staircase joints according to claim 2, characterized in that: The inner wall of the first slot (42) is movably connected to the surface of the first sealing strip (54), and the inner wall of the second slot (44) is movably connected to the surface of the second sealing strip (58).

7. The waterproof structure for prefabricated staircase joints according to claim 1, characterized in that: The surface of the waterproof membrane (5) is fixedly connected with anti-slip strips (59) that are evenly spaced.

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