Waterproof plugging device suitable for outer wall screw hole

Abstract

The utility model relates to the technical field of hole plugging, aims to solve the problems that in the prior art, plugging materials of an outer wall screw hole are prone to disturbance, the waterproof defense line is single, and the plugging effect is poor, and provides a waterproof plugging device suitable for the outer wall screw hole. The expansion pipe and the water-swelling rod form an integrated plugging piece to be installed in an outer wall screw hole, and the expansion pipe tightly presses the water-swelling rod on the inner wall of the outer wall screw hole. The two ends of the integrated plugging piece in the outer wall screw hole are filled with a plugging agent, and the plugging agent is solidified to form a sealing body; a sealing plug is mounted at the outer end of the sealing body, and the outer side of the sealing plug is flush with the wall surface of the outer wall; a waterproof layer is arranged at the outer wall screw hole in the outer wall and covers the outer side of the sealing plug; the water expansion rod is pressed on the inner wall of the outer wall screw hole through the expansion pipe, disturbance is not prone to occurring, and the blocking effect is good through the four-way waterproof design.

Description

Technical Field

[0001] This utility model relates to the field of hole sealing technology, specifically to a waterproof sealing device suitable for bolt holes in external walls. Background Technology

[0002] External wall bolt holes are leftover holes after formwork reinforcement construction. If they are not sealed properly or the material shrinks, they can easily form water seepage channels, affecting the building's waterproof performance and durability.

[0003] Through continuous optimization of the sealing process, the sealing method has evolved from simply filling with ordinary cement mortar in the early stages to using materials such as expanding waterproof mortar (with 5% expanding agent), polyurethane foam, and JS waterproof coating to achieve a more effective sealing effect. This series of improvements has not only enhanced the quality and durability of the sealing but also strengthened the waterproof performance.

[0004] The current mainstream blocking methods include the following:

[0005] 1. Grouting method: The combination of expanding mortar and polyurethane coating has the advantage of enhancing impermeability, but the disadvantage is that it is impossible to judge whether the mortar sealing inside the hole is tight, and there is only one waterproof barrier, which requires high skills from the sealing workers.

[0006] 2. Foam sealing method: Use expanding foam to fill the gaps and compact it with mortar. The advantage is that it reduces shrinkage cracks, but the disadvantage is that it is impossible to judge whether the filling inside the foam is tight, and the opening is easy to become a weak point in waterproofing.

[0007] 3. Plug method: Custom-made conical rubber plugs are used in conjunction with mortar compaction on both sides of the opening. The advantage is that it significantly improves the sealing density. However, in actual construction, the plug may slip due to the mortar compaction process, which greatly reduces the waterproofing effect.

[0008] In summary, existing waterproofing sealing technologies generally suffer from drawbacks such as the inability to determine the tightness of the waterproofing seal, the susceptibility of sealing materials to disturbance, and the limited range of waterproofing protection. Utility Model Content

[0009] The present invention aims to provide a waterproof sealing device suitable for bolt holes in external walls, so as to solve the problems of easy disturbance of sealing materials for bolt holes in external walls, single waterproof defense line and poor sealing effect in the prior art.

[0010] This utility model is achieved using the following technical solution:

[0011] This utility model provides a waterproof sealing device suitable for bolt holes in external walls, including an expansion tube and a water-swellable rod. The water-swellable rod is sleeved on the outside of the expansion tube. The expansion tube and the water-swellable rod form an integral sealing component and are installed into the bolt hole in the external wall. The expansion tube presses the water-swellable rod tightly against the inner wall of the bolt hole in the external wall.

[0012] Both ends of the integrated sealing component in the bolt hole of the external wall are filled with a sealing agent, and the sealing agent solidifies to form a seal.

[0013] A sealing plug is installed at the outer end of the sealing body, and the outer surface of the sealing plug is flush with the wall surface of the exterior wall;

[0014] A waterproof layer is provided on the exterior wall at the bolt hole, and the waterproof layer covers the outside of the seal.

[0015] As a preferred technical solution:

[0016] The expansion tube includes a shell and a dilator. A slit is provided on the shell along its axial direction. One end of the dilator extends into the shell and expands the shell.

[0017] As a preferred technical solution:

[0018] The expansion component is made of screws, which are screwed into the housing.

[0019] As a preferred technical solution:

[0020] The expanding component is not limited to screws; it can also be a tapered rod or the like, which can expand the outer shell to increase its outer diameter.

[0021] As a preferred technical solution:

[0022] The gap is zigzag-shaped.

[0023] As a preferred technical solution:

[0024] A baffle is formed on the outer surface of the outer shell, and the baffle is embedded in the water-swellable rod.

[0025] As a preferred technical solution:

[0026] The expansion tube and the water-swellable rod are installed in the middle of the bolt hole in the outer wall.

[0027] As a preferred technical solution:

[0028] The waterproof layer is made of waterproof coating.

[0029] As a preferred technical solution:

[0030] The sealing plug is installed at the bolt hole on the exterior wall.

[0031] As a preferred technical solution:

[0032] The water-swellable rod is made of water-swellable rubber.

[0033] As a preferred technical solution:

[0034] The material of the water-swellable rod is not limited to rubber; it can also be a material such as polyurethane that expands in volume when exposed to water.

[0035] As a preferred technical solution:

[0036] The sealing plug is made of rubber.

[0037] As a preferred technical solution:

[0038] The waterproof layer is circular, and its area is larger than the surface area of ​​the outer side of the sealing block.

[0039] As a preferred technical solution:

[0040] The waterproof layer has a diameter of 100mm and a thickness of 1.5mm, with the center of the bolt hole on the outer wall as the center.

[0041] The method for sealing external wall bolt holes using the above-mentioned waterproof sealing device for external wall bolt holes includes the following steps:

[0042] S1: Clean the bolt holes on the exterior wall;

[0043] S2: Select the appropriate specifications of water-resistant expansion rods and expansion tubes according to the different sizes of external wall bolt holes;

[0044] S3: Slide the water-resistant expansion rod over the outer shell of the expansion tube and install the two as a whole into the middle of the bolt hole on the outer wall;

[0045] S4: Insert one end of the expansion component into the outer shell to open the outer shell, so that the water-swellable rod fills the surrounding area and fits tightly against the inner wall of the bolt hole on the outer wall, thus preventing the integrated sealing component consisting of the water-swellable rod and the expansion tube from being disturbed.

[0046] S5: Use a fast-acting sealant to plug the holes on both sides of the integrated sealing component. After the fast-acting sealant solidifies, it forms a sealed body.

[0047] S6: Seal the openings in the inner and outer walls with sealant, making sure the outer side of the sealant is flush with the wall surface;

[0048] S7: With the center of the bolt hole on the exterior wall as the center, the waterproof coating forms a waterproof layer.

[0049] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0050] 1. This utility model uses an expansion tube to expand inside the bolt hole on the exterior wall, pressing the water-swellable rod against the inner wall of the bolt hole. This achieves a stable installation of the integrated sealing component consisting of the expansion tube and the water-swellable rod in the bolt hole. This structure is not easily disturbed, is stable, and has a good sealing effect.

[0051] 2. The waterproof sealing device of this utility model has four layers of waterproof design, which significantly improves the sealing tightness and waterproof effect. This utility model has a good sealing effect, good sealing performance, high durability, and guaranteed waterproof quality, which reduces the amount of maintenance caused by leakage in the later stage and greatly reduces the risk of leakage from bolt holes on the exterior wall.

[0052] 3. This utility model ensures the flatness of the wall surface by using rubber plugs, and avoids the problem of easy cracking at the openings on both sides by using waterproof coating.

[0053] 4. The expansion tube of this utility model has a slit along its axial direction on its outer shell. By screwing the screw into the outer shell, the outer shell can be opened to increase its outer diameter, thereby applying a lateral thrust to the water-contaminated expansion rod, so that the water-contaminated expansion rod is tightly attached to the inner wall of the screw hole on the outer wall.

[0054] 5. The outer surface of the expansion tube of this utility model is formed with a baffle, which is embedded in the water-swellable rod. This design can increase the friction between the expansion tube and the water-swellable rod, prevent the expansion tube from slipping out of the water-swellable rod, and improve the stability of their installation. Attached Figure Description

[0055] Figure 1 This is a structural schematic diagram of the waterproof sealing device for bolt holes in external walls as described in this utility model.

[0056] Figure 2 This is a schematic diagram of the expansion tube described in this utility model.

[0057] Icons: 1-Expansion tube, 101-Screw, 102-Outer shell, 103-Baffle, 104-Gap, 2-Water-swellable rubber rod, 3-Sealing body, 4-Rubber plug, 5-Waterproof layer. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0059] Example 1

[0060] like Figure 1 As shown in the figure, this embodiment proposes a waterproof sealing device suitable for bolt holes in external walls, including an expansion tube 1 and a water-swellable rubber rod 2. The water-swellable rubber rod 2 is sleeved on the outside of the expansion tube 1. The expansion tube 1 and the water-swellable rubber rod 2 are installed in the middle of the bolt hole in the external wall. After the expansion tube 1 is installed in the bolt hole, its outer diameter can increase, thereby applying a lateral thrust to the water-swellable rubber rod 2, making the water-swellable rubber rod 2 tightly adhere to the inner wall of the bolt hole. With the above structure, the water-swellable rubber rod 2 and the expansion tube 1 form an integrated sealing component, which can stably seal the middle of the bolt hole in the external wall, forming a stable waterproof barrier, avoiding disturbance, and improving the sealing effect.

[0061] The water-swellable rubber rod 2 is not limited to being made of rubber; it can also be made of polyurethane or other materials that expand in volume when exposed to water.

[0062] like Figure 2 As shown, the expansion tube 1 includes a housing 102 and a screw 101. A slit 104 is provided on the housing 102 along its axial direction. One end of the screw 101 is screwed into the housing 102. The diameter of the screw shank is larger than the inner diameter of the housing 102. After the screw 101 is screwed into the housing 102, the housing 102 is expanded by the screw 101, increasing its outer diameter, thereby increasing the outer diameter of the expansion tube 1. The expansion tube 1 applies a lateral thrust to the water-swellable rubber rod 2, causing the water-swellable rubber rod 2 to fit tightly against the inner wall of the external wall bolt hole.

[0063] By controlling the degree to which the screw 101 is turned, controlling its length into the outer casing 102, and controlling the degree of expansion of the expansion tube 1, the pressure exerted by the water-swellable rubber rod 2 on the inner wall of the external wall screw hole is controlled, thereby determining whether the seal is in place and the tightness of the waterproof sealing.

[0064] In this embodiment, the gap 104 is in the shape of a broken line.

[0065] Furthermore, a baffle 103 is formed on the outer surface of the outer shell 102. The baffle 103 is embedded in the water-swellable rubber rod 2. This design can increase the friction between the expansion tube 1 and the water-swellable rubber rod 2, prevent the expansion tube 1 from slipping out of the water-swellable rubber rod 2, and improve the stability of their installation.

[0066] In this embodiment, the expansion tube 1 is made of plastic.

[0067] Both ends of the water-swellable rubber rod 2 in the external wall bolt hole are filled with a quick-sealing agent. The quick-sealing agent seals the ends of the water-swellable rubber rod 2 and the expansion tube 1, forming a second waterproof barrier, which further improves the sealing effect; and it can also protect the integrated sealing component and increase its durability.

[0068] After the quick-setting sealant solidifies, it forms a sealing body 3. A rubber plug 4 is provided at the outer end of the sealing body 3. The rubber plug 4 is located at the bolt hole in the outer wall and forms a third waterproof barrier. At the same time, the outer surface of the rubber plug 4 is flush with the wall surface of the outer wall. After the rubber plug 4 is tightened, it helps to ensure the flatness of the wall surface.

[0069] A waterproof layer 5 is provided on the outer wall at the bolt hole of the outer wall. The waterproof layer 5 covers the outside of the rubber plug 4 and is formed by applying a waterproof coating.

[0070] In this embodiment, the waterproof coating can be JS waterproof coating, and the waterproof layer 5 has a diameter of 100mm and a thickness of 1.5mm, with the center of the bolt hole on the outer wall as the center.

[0071] The waterproof layer 5 serves as the fourth waterproof barrier, ensuring the waterproof quality of the gaps at the bolt holes in the external wall.

[0072] This invention utilizes the expansion tube 1 to expand within the bolt hole on the exterior wall, pressing the water-swellable rubber rod 2 against the inner wall of the bolt hole. This achieves a stable installation of the integrated sealing component consisting of the expansion tube 1 and the water-swellable rubber rod 2 within the bolt hole. The structure is not easily disturbed, is stable, and provides a good sealing effect.

[0073] This utility model's waterproof sealing device has four layers of waterproof design, which significantly improves the sealing tightness and waterproof effect. This utility model has a good sealing effect, good sealing performance, high durability, and guaranteed waterproof quality, reducing the amount of maintenance caused by leakage in the later stage, and greatly reducing the risk of leakage from bolt holes on the exterior wall.

[0074] This invention ensures the flatness of the wall surface by using rubber plug 4, and avoids the problem of easy cracking at the openings on both sides by using waterproof coating.

[0075] The method for sealing external wall bolt holes using the above-mentioned waterproof sealing device for external wall bolt holes includes the following steps:

[0076] S1: Clean the bolt holes on the exterior wall;

[0077] S2: Select the corresponding specifications of water-swellable rubber rod 2 and expansion tube 1 according to the different sizes of external wall bolt holes;

[0078] S3: Sleeve the water-swellable rubber rod 2 over the outer shell 102 of the expansion tube 1, and install the two as a whole into the middle of the bolt hole on the outer wall;

[0079] S4: Screw the screw 101 into the outer shell 102 and open the outer shell 102 so that the water-swellable rubber rod 2 fills the surrounding area and fits tightly against the inner wall of the bolt hole on the outer wall, so as to prevent the integrated sealing part composed of the water-swellable rubber rod 2 and the expansion tube 1 from being disturbed.

[0080] S5: Use a fast-acting sealant to plug the holes on both sides of the integrated sealing component. After the fast-acting sealant solidifies, it forms a sealed body 3.

[0081] S6: Use rubber plugs 4 to seal the openings in the inner and outer walls. The outer side of the rubber plugs 4 should be flush with the wall surface to ensure the flatness of the wall surface.

[0082] S7: Using the center of the bolt hole on the exterior wall as the center, with a diameter of 100mm, apply JS waterproof coating with a thickness of 1.5mm to ensure the waterproof quality of the gap at the bolt hole on the exterior wall.

[0083] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waterproof sealing device suitable for bolt holes in external walls, characterized in that: It includes an expansion tube and a water-swellable rod. The water-swellable rod is sleeved on the outside of the expansion tube. The expansion tube and the water-swellable rod form an integral sealing component and are installed into the bolt hole of the external wall. The expansion tube presses the water-swellable rod tightly against the inner wall of the bolt hole of the external wall. Both ends of the integrated sealing component in the bolt hole of the external wall are filled with a sealing agent, and the sealing agent solidifies to form a seal. A sealing plug is installed at the outer end of the sealing body, and the outer surface of the sealing plug is flush with the wall surface of the exterior wall; A waterproof layer is provided on the exterior wall at the bolt hole, and the waterproof layer covers the outside of the seal.

2. The waterproof sealing device for bolt holes in external walls according to claim 1, characterized in that: The expansion tube includes a shell and a dilator. A slit is provided on the shell along its axial direction. One end of the dilator extends into the shell and expands the shell.

3. The waterproof sealing device for bolt holes in external walls according to claim 2, characterized in that: The gap is zigzag-shaped.

4. The waterproof sealing device for bolt holes in external walls according to claim 2, characterized in that: A baffle is formed on the outer surface of the outer shell, and the baffle is embedded in the water-swellable rod.

5. The waterproof sealing device for bolt holes in external walls according to claim 1, characterized in that: The expansion tube and the water-swellable rod are installed in the middle of the bolt hole in the outer wall.

6. The waterproof sealing device for bolt holes in external walls according to claim 1, characterized in that: The waterproof layer is made of waterproof coating.

7. The waterproof sealing device for bolt holes in external walls according to claim 1, characterized in that: The sealing plug is installed at the bolt hole on the exterior wall.

8. The waterproof sealing device for bolt holes in external walls according to claim 1, characterized in that: The water-swellable rod is made of water-swellable rubber.

9. The waterproof sealing device for bolt holes in external walls according to claim 1, characterized in that: The sealing plug is made of rubber.

10. The waterproof sealing device for bolt holes in external walls according to claim 1, characterized in that: The waterproof layer is circular, and its area is larger than the surface area of ​​the outer side of the sealing block.

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