A tool for plugging a screw hole in an outer wall

Abstract

The utility model discloses a kind of outer wall screw hole plugging tools, belong to building construction technical field, including wall, grouting piece and plugging piece, the two ends of corresponding screw hole of wall inside and outside are all provided with accommodating groove, the plugging piece includes hollow tube, the outside of second rubber block is tightly provided with movable stopper, the movable stopper is screwed on the other end of hollow tube, the movable stopper and fixed stopper are all adapted to be embedded into corresponding accommodating groove, the left end middle part of hollow tube is provided with grouting port, the grouting piece includes grouting pipe and grouting head, when plugging, the grouting head is inserted into grouting port, the utility model realizes the close protection of rubber block, avoids rubber block direct exposure damage, enhances sealing performance, improves plugging durability, effectively improves the plugging quality and construction convenience, improves the technical effect of work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a tool for sealing bolt holes in external walls. Background Technology

[0002] In the current civil engineering construction industry, wall leakage caused by inadequate sealing of bolt holes in external walls is a common problem and a key focus of leakage investigation during construction. Due to the need for formwork support during the construction of the superstructure, through bolt holes are inevitably left in the structural walls. These bolt holes are numerous and difficult to seal. Currently, manual grouting is commonly used, which is slow and the tightness of the grout depends entirely on the worker's sense of responsibility and patience, making it difficult to guarantee the sealing quality. This is a place where leakage risks are relatively high.

[0003] To address this, Chinese Patent CN221567981U discloses an external wall screw hole sealing component, which includes a first plug and a second plug disposed at intervals within the screw hole; a cavity is formed between the first and second plugs, and the cavity is filled with mortar; it also includes a first washer disposed within the screw hole, the first washer being located to the left of the first plug; a sleeve clearance area is provided on the side of the screw hole away from the first washer; the second plug is located to the left of the sleeve clearance area; both the first and second plugs are spheres, and their diameters are the same as the diameter of the screw hole; both the first and second plugs are made of elastic material, and in this embodiment, the material used is water-swellable rubber. The first plug and the first washer fit together to form a sealing area, which can seal the outside of the screw hole. First, unlike the current manual grouting method, the components of the first washer, the first plug and the second plug are used to seal the mortar in the screw hole, which greatly reduces the risk of water leakage. Second, with the appropriate sealing tools, the efficiency and quality of sealing the screw holes of the external wall are improved by the workers.

[0004] However, in the aforementioned device, both the first and second plugs are made of spherical elastic rubber material. The two ends of the sealing mortar are kept sealed by the tension of the first and second plugs. However, the first and second plugs are directly exposed at the two ends of the screw hole. After long-term use, they are prone to loosening due to wear and tear, which will affect the sealing performance and thus the sealing efficiency. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a tool for sealing bolt holes in external walls. It provides tight protection for the rubber plug, preventing direct exposure and damage, enhancing sealing performance, improving sealing durability, effectively improving sealing quality and ease of construction, and increasing work efficiency. It solves the problem in the prior art where both the first and second plugs are spherical elastic rubber materials, and the two ends of the sealing mortar are kept sealed by the tension of the first and second plugs. However, the first and second plugs are directly exposed at the two ends of the bolt hole, which can easily loosen due to wear and tear over time, thus affecting the sealing performance and sealing efficiency.

[0006] This utility model is implemented as follows: an external wall screw hole sealing tool includes a wall, a grouting component, and a sealing component. Both ends of the screw holes on the inner and outer sides of the wall are provided with receiving grooves. The sealing component includes a hollow tube, which is inserted into the middle of the screw hole from right to left. A first rubber plug and a fixed stop are fitted and fixed to the right end of the hollow tube. A second rubber plug is inserted and positioned on the left end of the hollow tube. A movable stop is pressed against the outer side of the second rubber plug. The movable stop is threaded onto the other end of the hollow tube. Both the movable stop and the fixed stop are adapted to be embedded in the corresponding receiving grooves. A grouting port is opened in the middle of the left end of the hollow tube. The grouting component includes a grouting pipe and a grouting head. When sealing, the grouting head extends into the grouting port.

[0007] In a preferred embodiment of this invention, both the first rubber plug and the second rubber plug are tightly fitted to the end walls of the screw hole. Both the fixed block and the movable block include a tapered portion and a circular portion. A sealing cavity is provided between the tapered portion of the fixed block and the movable block and the receiving groove. The circular portion of the fixed block and the movable block and the receiving groove are fitted together.

[0008] With this setup, on the one hand, the first and second rubber plugs can be directly and tightly fitted to the screw hole wall, initially improving the sealing performance at both ends of the screw hole; on the other hand, the circular parts of the fixed and movable blocks fit into the receiving groove, which can position the blocks, while the sealing cavity formed by the conical part and the receiving groove can be filled with slurry to form a secondary seal, further enhancing the sealing performance of the plug and preventing leakage caused by the plug loosening.

[0009] As a preferred embodiment of this utility model, guide holes are provided on both ends of the hollow tube and between the fixed block and the movable block. The guide holes are connected to the sealing cavity. The hollow tubes corresponding to the guide holes are provided with uniformly distributed slurry outlets, which are connected to the screw hole.

[0010] With this setup, during grouting, the grout can be evenly injected into the screw hole through the grout outlet of the hollow tube. At the same time, some of the grout can flow into the sealing cavity through the guide hole, so that both the sealing cavity and the screw hole can be filled with grout. This ensures that the grout inside the screw hole is densely filled with grout and that the sealing cavity forms a sealing structure, thereby enhancing the tight connection between the fixed stop and the first rubber plug, as well as between the movable stop and the second rubber plug, and improving the sealing performance.

[0011] As a preferred embodiment of this utility model, the outer end face of the movable stop is provided with an operating hole, which is used to facilitate the insertion of tools and drive the movable stop to rotate, thereby facilitating the operation of screwing the movable stop into the hollow tube.

[0012] With this feature, staff can easily use tools such as wrenches and screwdrivers to insert into the operating hole and rotate the movable stop to achieve a threaded connection with the hollow tube, making the operation convenient.

[0013] As a preferred embodiment of this utility model, a threaded plug is threadedly inserted into the grouting port. After sealing, the threaded plug is tightened to the grouting port for sealing. An operating port is provided on the outer end face of the threaded plug. The operating port is used to facilitate the insertion of tools and to drive the threaded plug to rotate, thereby facilitating the disassembly and assembly of the threaded plug.

[0014] With this setup, after grouting is completed, the grouting port can be sealed with a threaded plug to prevent grout from overflowing or external water from seeping in. At the same time, the operating port allows tools to drive the threaded plug to rotate, enabling quick disassembly and assembly, while ensuring both sealing reliability and ease of maintenance.

[0015] As a preferred embodiment of this utility model, a limiting protrusion is fixedly connected to the outer wall of the left end of the hollow tube, the right side of the second rubber block abuts against the limiting protrusion, and the left side of the second rubber block abuts against the movable stop.

[0016] With this setting, the limiting protrusion can limit the second rubber block on the right side, and together with the left side of the movable stop, it can stably clamp the second rubber block between the limiting protrusion and the movable stop, ensuring its tightness and sealing with the screw hole wall.

[0017] In a preferred embodiment of this invention, the grouting head is fixedly connected to one end of the grouting pipe, a piston block is slidably connected inside the grouting pipe, a piston rod is fixedly connected to the middle of the piston block, and the end of the piston rod slidably extends through to the other end of the grouting pipe.

[0018] With this setup, workers can push the piston rod to move the piston block inside the grouting pipe. The thrust of the piston block is used to steadily press the grout in the grouting pipe into the hollow pipe through the grouting head. This eliminates the need for external large-scale grouting equipment, allows for flexible operation, and enables precise control of grouting pressure and volume, ensuring a dense grout filling.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: By embedding the fixed block and the movable block into the receiving groove, the rubber plug is tightly protected, avoiding direct exposure and damage to the rubber plug. At the same time, it ensures that the plug is continuously and tightly fitted to the screw hole wall, improving the sealing durability. Furthermore, during grouting, the grout fills the screw hole through the grout outlet and the sealing cavity through the guide hole, achieving double sealing and preventing leakage. The threaded plug seals the grouting port, further improving the sealing performance. Overall, the sealing quality and construction convenience are improved, and work efficiency is increased. Attached Figure Description

[0020] Figure 1 This is a cross-sectional structural schematic diagram provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the main structure provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the sealing component structure provided in an embodiment of the present utility model; Figure 4 This is provided by the embodiment of the present utility model. Figure 2 Enlarged structural diagram of the movable stop in the middle; Figure 5 This is a schematic diagram of the grouting component structure provided in this embodiment of the utility model.

[0021] In the diagram: 1. Wall; 2. Receiving groove; 3. Hollow pipe; 301. Grout outlet; 302. Guide hole; 303. Grouting port; 304. Limiting protrusion; 4. Fixed block; 5. First rubber plug; 6. Movable block; 601. Operating hole; 7. Second rubber plug; 8. Sealing cavity; 9. Threaded plug; 901. Operating port; 10. Grouting pipe; 11. Grouting head; 12. Piston block; 13. Piston rod. Detailed Implementation

[0022] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0023] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] refer to Figures 1 to 5As shown in the figure, an external wall screw hole sealing tool provided by this utility model embodiment includes a wall body 1, a grouting component and a sealing component. The two ends of the screw holes corresponding to the inner and outer sides of the wall body 1 are provided with receiving grooves 2. The sealing component includes a hollow tube 3. The hollow tube 3 is inserted into the middle of the screw hole from right to left. A first rubber plug 5 and a fixed stop 4 are sleeved and fixed on the right end of the hollow tube 3. A second rubber plug 7 is inserted and positioned on the left end of the hollow tube 3. A movable stop 6 is pressed against the outside of the second rubber plug 7. The movable stop 6 is threaded onto the other end of the hollow tube 3. The movable stop 6 and the fixed stop 4 are both adapted to be embedded in the corresponding receiving grooves 2. A grouting port 303 is opened in the middle of the left end of the hollow tube 3. The grouting component includes a grouting pipe 10 and a grouting head 11. When sealing, the grouting head 11 extends into the grouting port 303.

[0025] Specifically, the first rubber plug 5 and the second rubber plug 7 are both tightly fitted to the two end walls of the screw hole. The fixed block 4 and the movable block 6 each include a conical part and a circular part. A sealing cavity 8 is provided between the conical part of the fixed block 4 and the movable block 6 and the receiving groove 2. The circular part of the fixed block 4 and the movable block 6 is fitted to the receiving groove 2.

[0026] By adopting the above scheme, on the one hand, the first rubber plug 5 and the second rubber plug 7 can be directly and tightly fitted to the screw hole wall, which initially improves the sealing performance at both ends of the screw hole; on the other hand, the circular parts of the fixed stop 4 and the movable stop 6 fit into the receiving groove 2, which can play a positioning role for the stop. The sealing cavity 8 formed by the conical part and the receiving groove 2 can be filled with slurry to form a secondary seal, further enhancing the sealing performance of the plug and preventing leakage caused by the plug loosening.

[0027] Specifically, guide holes 302 are provided between the two end sidewalls of the hollow tube 3 and between the fixed block 4 and the movable block 6. The guide holes 302 are connected to the sealing cavity 8. The hollow tube 3 between the guide holes 302 is provided with uniformly distributed slurry outlets 301. The slurry outlets 301 are connected to the screw hole.

[0028] Using the above scheme, during grouting, the grout can be evenly injected into the screw hole through the grout outlet 301 of the hollow tube 3. At the same time, some of the grout can flow into the sealing cavity 8 through the guide hole 302, so that both the sealing cavity 8 and the screw hole can be filled with grout. This ensures that the grout inside the screw hole is densely filled and that the sealing cavity 8 forms a sealing structure, thereby enhancing the tight connection between the fixed stop 4 and the first rubber plug 5, as well as between the movable stop 6 and the second rubber plug 7, and improving the sealing performance.

[0029] Specifically, the outer end face of the movable stop 6 is provided with an operation hole 601. The operation hole 601 is used to facilitate the insertion of tools and drive the movable stop 6 to rotate, thereby facilitating the operation of the movable stop 6 to be screwed into the hollow tube 3.

[0030] Using the above solution, staff can easily rotate the movable stop 6 to achieve a threaded connection with the hollow tube 3 by inserting tools such as wrenches and screwdrivers into the operating hole 601, which is convenient to operate.

[0031] Specifically, a threaded plug 9 is threadedly inserted into the grouting port 303. After sealing, the threaded plug 9 is tightened to the grouting port 303 for sealing. An operating port 901 is provided on the outer end face of the threaded plug 9. The operating port 901 is used to facilitate the insertion of tools and drive the threaded plug 9 to rotate, thereby facilitating the disassembly and assembly of the threaded plug 9.

[0032] Using the above solution, after grouting is completed, the grouting port 303 can be sealed by the threaded plug 9 to prevent grout from overflowing or external water from seeping into the grouting port 303; at the same time, the operating port 901 facilitates the use of tools to drive the threaded plug 9 to rotate, achieving quick disassembly and assembly, and taking into account both sealing reliability and convenient maintenance in the later stage.

[0033] Specifically, a limiting protrusion 304 is fixedly connected to the outer wall of the left end of the hollow tube 3, the right side of the second rubber block 7 abuts against the limiting protrusion 304, and the left side of the second rubber block 7 abuts against the movable stop 6.

[0034] Using the above scheme, the limiting protrusion 304 can limit the second rubber block 7 on the right side. In conjunction with the left side of the movable stop 6, the second rubber block 7 can be stably clamped between the limiting protrusion 304 and the movable stop 6, ensuring its tightness and sealing with the screw hole wall.

[0035] Specifically, the grouting head 11 is fixedly connected to one end of the grouting pipe 10, a piston block 12 is slidably connected inside the grouting pipe 10, a piston rod 13 is fixedly connected to the middle of the piston block 12, and the end of the piston rod 13 slides through to the other end of the grouting pipe 10.

[0036] Using the above scheme, the staff can push the piston rod 13 to drive the piston block 12 to slide inside the grouting pipe 10. The thrust of the piston block 12 is used to stably press the grout in the grouting pipe 10 into the hollow pipe 3 through the grouting head 11. There is no need to rely on external large grouting equipment. The operation is flexible and the grouting pressure and grouting volume can be precisely controlled to ensure that the grout is filled densely.

[0037] The working principle of this utility model: In use, the hollow tube 3 with the first rubber plug 5 and the fixed stop 4 is inserted into the screw hole from right to left. At this time, the fixed stop 4 is embedded in the right end receiving groove 2. Then, the second rubber plug 7 is put on and abuts against the limiting protrusion 304. The movable stop 6 is screwed in and embedded in the left end receiving groove 2, pressing against the second rubber plug 7. Then, grouting begins. The grouting head 11 is connected to the grouting port 303 of the hollow tube 3. The piston is pushed to force the grout in. The grout fills the screw hole through the grout outlet 301 and fills the sealing cavity 8 through the guide hole 302, forming a double seal. After grouting, the grouting component is removed, and the grouting port 303 is tightened with the threaded plug 9 to complete the sealing.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] 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 tool for sealing bolt holes in external walls, comprising a wall (1), a grouting component, and a sealing component, characterized in that: The wall (1) has a receiving groove (2) at both ends of the screw hole corresponding to the inner and outer sides. The sealing component includes a hollow tube (3). The hollow tube (3) is inserted into the middle of the screw hole from right to left. A first rubber plug (5) and a fixed stop (4) are fixedly connected to the right end of the hollow tube (3). A second rubber plug (7) is inserted into the left end of the hollow tube (3). A movable stop (6) is pressed against the outside of the second rubber plug (7). The movable stop (6) is threaded onto the other end of the hollow tube (3). The movable stop (6) and the fixed stop (4) are both adapted to be embedded in the corresponding receiving groove (2). A grouting port (303) is opened in the middle of the left end of the hollow tube (3). The grouting component includes a grouting pipe (10) and a grouting head (11). When sealing, the grouting head (11) extends into the grouting port (303).

2. The external wall bolt hole sealing tool as described in claim 1, characterized in that: The first rubber plug (5) and the second rubber plug (7) are both tightly fitted to the two end holes of the screw hole. The fixed block (4) and the movable block (6) both include a conical part and a circular part. A sealing cavity (8) is provided between the conical part of the fixed block (4) and the movable block (6) and the receiving groove (2). The circular part of the fixed block (4) and the movable block (6) is fitted to the receiving groove (2).

3. The external wall bolt hole sealing tool as described in claim 2, characterized in that: The hollow tube (3) has flow guide holes (302) between its two end sidewalls, fixed stop (4) and movable stop (6). The flow guide holes (302) are connected to the sealing cavity (8). The hollow tube (3) between the flow guide holes (302) has uniformly distributed slurry outlets (301). The slurry outlets (301) are connected to the screw hole.

4. The external wall bolt hole sealing tool as described in claim 1, characterized in that: The outer end face of the movable stop (6) is provided with an operation hole (601). The operation hole (601) is used to facilitate the insertion of tools and drive the movable stop (6) to rotate, thereby facilitating the operation of the movable stop (6) to be screwed into the hollow tube (3).

5. The external wall bolt hole sealing tool as described in claim 1, characterized in that: A threaded plug (9) is threaded into the grouting port (303). After sealing, the threaded plug (9) is tightened to the grouting port (303) for sealing. An operating port (901) is provided on the outer end face of the threaded plug (9). The operating port (901) is used to facilitate the insertion of tools and drive the threaded plug (9) to rotate, thereby facilitating the disassembly and assembly of the threaded plug (9).

6. The external wall bolt hole sealing tool as described in claim 1, characterized in that: The left end of the hollow tube (3) is fixedly connected to a limiting protrusion (304), the right side of the second rubber block (7) abuts against the limiting protrusion (304), and the left side of the second rubber block (7) abuts against the movable stop (6).

7. The external wall bolt hole sealing tool as described in claim 1, characterized in that: The grouting head (11) is fixedly connected to one end of the grouting pipe (10). A piston block (12) is slidably connected inside the grouting pipe (10). A piston rod (13) is fixedly connected to the middle of the piston block (12). The end of the piston rod (13) slides through to the other end of the grouting pipe (10).

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