A post-drilled sleeve sealing structure

Abstract

This invention discloses a post-opening sleeve sealing structure, comprising an inner flange tube and an outer flange tube. The inner flange tube is disposed within the outer flange tube. One end of the outer flange tube is provided with a first limiting plate, and the inner flange tube is provided with a second limiting plate located at the end of the inner flange tube away from the first limiting plate. The inner flange tube and the outer flange tube are threaded together. Both ends of the inner flange tube are provided with sealing modules to seal the inner flange tube. This invention, through the arrangement of the inner and outer flange tubes, facilitates the installation and fixation of both, adapts to walls of different thicknesses, and improves installation efficiency.

Description

Technical Field

[0001] This invention belongs to the field of civil defense sealing technology, and particularly relates to a rear-opening sleeve sealing structure. Background Technology

[0002] Civil defense buildings are a general term for building projects with civil air defense engineering as a necessary ancillary project. They are often embodied in underground parking garages, and include the necessary hardware for wartime shelters such as civil defense doors, sealing doors, lighting, ventilation, water supply and drainage, communication, and network facilities. Existing methods for sealing civil defense walls generally require drilling holes in the wall, installing through-wall sleeves and bolting them to the wall, then threading cables through the sleeves and sealing them with elastic compression blocks. This method requires through-wall sleeves of varying lengths depending on the thickness of the civil defense wall, and the bolted fixing method results in low installation efficiency for the sealing structure. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned technical problems existing in the prior art, and to provide a post-opening sleeve sealing structure that can adapt to walls of different thicknesses, facilitates the fixing of the inner and outer flange tubes, and improves the installation efficiency of the sleeve sealing structure.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A rear-opening sleeve sealing structure is characterized in that it includes an inner flange tube and an outer flange tube, the inner flange tube is disposed in the outer flange tube, one end of the outer flange tube is provided with a first limiting piece, the inner flange tube is provided with a second limiting piece, the second limiting piece is disposed on the inner flange tube at the end away from the first limiting piece, the inner flange tube and the outer flange tube are threadedly connected, and both ends of the inner flange tube are provided with sealing modules to seal the inner flange tube.

[0006] Furthermore, a sealant is provided between the inner flange tube and the outer flange tube.

[0007] Furthermore, the sealing module includes two sealing half-rings and a filling ring. The two sealing half-rings are connected end to end to form a closed ring, and the filling ring is located in the ring formed by the two sealing half-rings.

[0008] Furthermore, the filling ring comprises several layers of tearable rubber pads.

[0009] Furthermore, the inner tube of the flange is provided with a fixing ring, the fixing ring is provided with a guide rail, and the sealing half ring is provided with a sliding groove, with the guide rail and the sliding groove being slidably connected.

[0010] Furthermore, the guide rail is inclined, gradually tilting from the outside to the inside towards the central axis of the fixed ring, and the slide groove matches the guide rail.

[0011] Furthermore, the retaining ring is threaded with a retaining bolt, which passes through the inner wall of the retaining ring and presses against the inner wall of the flange inner tube.

[0012] Furthermore, the inner wall of the flange inner tube is provided with a positioning protrusion, and the fixing ring is provided with a positioning groove, with the positioning protrusion located in the positioning groove.

[0013] Furthermore, the sealing half-ring is equipped with support plates.

[0014] Furthermore, the support plate is provided with grouting holes.

[0015] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0016] In this invention, the inner flange tube is disposed within the outer flange tube. One end of the outer flange tube has a first limiting plate, and the inner flange tube has a second limiting plate located at the end of the inner flange tube furthest from the first limiting plate. The inner and outer flange tubes are threaded together. Both ends of the inner flange tube are equipped with sealing modules to seal it. The use of the inner and outer flange tubes facilitates their installation and fixation, adapts to walls of varying thicknesses, and improves installation efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of a rear-opening sleeve sealing structure according to the present invention;

[0019] Figure 2 This is a schematic diagram of the installation structure of the inner flange tube and the outer flange tube in this invention;

[0020] Figure 3 This is a schematic diagram of the structure in this invention where the fixing ring is located on the outer side;

[0021] Figure 4 This is a schematic diagram of the structure in this invention where the fixing ring is located on the inner side;

[0022] Figure 5 This is a schematic diagram of the structure in this invention where the sealing half-ring is installed inside the flange tube;

[0023] Figure 6 This is a schematic diagram of the connection between the sealing half-ring and the fixed ring in this invention.

[0024] In the diagram, 1-Flange inner tube; 2-Flange outer tube; 3-Sealing module; 4-First limiting plate; 5-Second limiting plate; 56-Sealing half ring; 7-Filling ring; 9-Fixing ring; 10-Guide rail; 11-Slide groove; 12-Fixing bolt; 13-Positioning protrusion; 14-Positioning groove; 15-Support plate; 16-Grouting hole. Detailed Implementation

[0025] like Figure 1 and Figure 2As shown, this invention provides a post-drilled sleeve sealing structure, comprising an inner flange tube 1, an outer flange tube 2, and a sealing module 3. The inner flange tube 1 and the outer flange tube 2 together form a through-wall sleeve for accommodating cables and pipes passing through the wall. The sealing module 3 is located at both ends of the inner flange tube 1 to seal it. Specifically, one end of the outer flange tube 2 is provided with a first limiting piece 4, and the inner flange tube 1 is provided with a second limiting piece 5. The second limiting piece 5 is located on the inner flange tube 1 at the end away from the first limiting piece 4. The first limiting piece 4 and the second limiting piece 5 are respectively located on both sides of the wall to fit snugly against the wall, improving the connection effect with the wall. The inner flange tube 1 is located within the outer flange tube 2, and the inner flange tube 1 and the outer flange tube 2 are threaded together. This threaded connection allows the inner flange tube 1 and the outer flange tube 2 to be securely fastened to the wall. Compared to the traditional through-wall sleeve method that uses multiple bolts to drill holes in the wall for fixing, this method facilitates the installation and fixing of the inner flange tube 1 and the outer flange tube 2. Defining the length of the inner flange tube 1 as D1 and the length of the outer flange tube 2 as D2, the wall thickness that the inner flange tube 1 and outer flange tube 2 can adapt to is greater than D2 and less than D1+D2. The connection method of the inner flange tube 1 and outer flange tube 2 allows the sleeve sealing structure to adapt to walls of different thicknesses, thus having a wide range of applications. Since the inner flange tube 1 and outer flange tube 2 are installed in the wall after being perforated, the bonding strength with the wall is relatively low and does not meet the required resistance level. However, by setting a first limiting plate 4 and a second limiting plate 5, and if necessary, using expansion bolts on the first limiting plate 4 and the second limiting plate 5, they can be fixed to the wall. The connection between the first limiting plate 4 and the outer flange tube 2 is generally fixed by welding, and the connection between the second limiting plate 5 and the inner flange tube 1 is also generally fixed by welding.

[0026] As one implementation method, a sealant is applied between the inner flange tube 1 and the outer flange tube 2. Before connecting the inner flange tube 1 and the outer flange tube 2, a layer of sealant is applied to the inner flange tube 1, and then the inner flange tube 1 and the outer flange tube 2 are threaded together. After the sealant has dried, it can improve the connection and sealing effect between the inner flange tube 1 and the outer flange tube 2.

[0027] like Figures 3 to 6 As shown, in one implementation, the sealing module 3 includes two sealing half-rings 6 and a filling ring 7. The two sealing half-rings 6 are connected end to end to form a closed ring, and the filling ring 7 is located within the ring formed by the two sealing half-rings 6. With the above arrangement, the sealing module 3 can be easily fitted onto the cable and then placed at both ends of the flange inner tube 1, thereby achieving the sealing of both ends of the flange inner tube 1.

[0028] Specifically, the filler ring 7 includes several layers of tearable rubber pads. The tearable rubber pads are ring-shaped and consist of two half-rings. During installation, excess tearable rubber pads are removed according to the radius of the cable to make the cable fit against the filler ring 7. Then, the two sealing half-rings 6 are fastened to the outside of the tearable rubber pads and the sealing half-rings 6 are inserted into the flange inner tube 1.

[0029] As one implementation, the inner flange tube 1 is equipped with a fixing ring 9, the fixing ring 9 is equipped with a guide rail 10, and the sealing half-ring 6 is equipped with a sliding groove 11. The guide rail 10 and the sliding groove 11 are slidably connected. This configuration provides positioning and guidance for the sealing half-ring 6, facilitating its insertion into the inner flange tube 1 and improving the connection and sealing effect between the inner flange tube 1 and the sealing module 3. Specifically, the guide rail 10 is inclined, gradually tilting towards the central axis of the fixing ring 9 from the outside in, and the sliding groove 11 matches the guide rail 10. When the fixing ring 9 is fixed to the inner flange tube 1, the sealing half-ring 6 slides into the inner flange tube 1 via the guide rail 10. The two sealing half-rings 6 gradually approach each other under the action of the inclined guide rail 10, thereby securing the cable inside the sealing half-ring 6. This configuration improves the securing effect of the sealing module 3 on the cable, preventing cable loosening and improving the sealing performance of the sealing module 3.

[0030] The retaining ring 9 is threadedly connected to a fixing bolt 12, which passes through the inner wall of the retaining ring 9 and presses against the inner wall of the flange inner tube 1. The fixing bolt 12 secures the retaining ring 9, preventing it from slipping during the installation of the sealing module 3 and ensuring the sealing effect of the sealing module 3. The retaining ring 9 is slidably connected to the flange inner tube 1 and fixed by the fixing bolt 12, allowing the position of the retaining ring 9 within the flange inner tube 1 to accommodate cables of different diameters and improve versatility.

[0031] In this embodiment, the inner wall of the flange inner tube 1 is provided with a positioning protrusion 13, and the fixing ring 9 is provided with a positioning groove 14, with the positioning protrusion 13 disposed in the positioning groove 14. Through the cooperation of the positioning protrusion 13 and the positioning groove 14, the fixing ring 9 can be positioned within the flange inner tube 1, preventing rotation of the fixing ring 9 within the flange inner tube 1 and improving the fixing effect of the fixing ring 9. The fixing bolt 12 is inclined, allowing for easy tightening of the fixing bolt 12 from outside the flange inner tube 1, facilitating installation.

[0032] As one implementation method, the sealing half-ring 6 is provided with a support plate 15. The support plate 15 can play a limiting support role when the sealing half-ring 6 is in use, restricting the sealing half-ring 6 from continuing to move, and preventing the sealing half-ring 6 from completely entering the flange inner tube 1 and becoming impossible to remove.

[0033] Specifically, the support plate 15 is provided with a grouting hole 16. The grouting hole 16 can fill the space between the sealing module 3 and the flange inner tube 1 after the sealing module 3 is installed, thereby improving the sealing effect of the sealing module 3.

[0034] In use, the outer flange tube 2 is first placed in the pre-drilled cable hole. A layer of sealant is applied to the threads of the inner flange tube 1. The inner flange tube 1 is aligned with the outer flange tube 2, and the two are joined and tightened. The sealant is allowed to dry. Then, the thickness of the tearable rubber gasket and the position of the fixing ring 9 are determined according to the radius of the cable. The fixing ring 9 is inserted into the appropriate position in the inner flange tube 1, and the fixing bolts 12 are tightened to fix the fixing ring 9. The cable is then passed through the inner flange tube 1, and the tearable rubber gasket and the sealing half-ring 6 are put on the cable. The slide groove 11 is aligned with the guide rail 10 and the fixing ring 9 is inserted. After the sealing half-ring 6 is tightened, the sealing material is injected into the grouting hole 16. After the sealing material dries, the installation of the sealing structure is completed.

[0035] In this invention, the inner flange tube 1 is disposed within the outer flange tube 2. One end of the outer flange tube 2 is provided with a first limiting piece 4, and the inner flange tube 1 is provided with a second limiting piece 5, located at the end of the inner flange tube 1 furthest from the first limiting piece 4. The inner flange tube 1 and the outer flange tube 2 are threaded together. Both ends of the inner flange tube 1 are provided with sealing modules 3 to seal it. The arrangement of the inner flange tube 1 and the outer flange tube 2 facilitates their installation and fixation, adapts to walls of varying thicknesses, and improves installation efficiency.

[0036] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A post-aperture sleeve sealing structure, characterized in that: The device includes an inner flange tube and an outer flange tube. The inner flange tube is disposed within the outer flange tube. One end of the outer flange tube is provided with a first limiting plate, and the inner flange tube is provided with a second limiting plate. The second limiting plate is disposed on the inner flange tube at an end away from the first limiting plate. The inner flange tube and the outer flange tube are threaded together. Both ends of the inner flange tube are provided with sealing modules to seal the inner flange tube. The plugging module includes two plugging half-rings and a filling ring. The two plugging half-rings are connected end to end to form a closed ring, and the filling ring is located in the ring formed by the two plugging half-rings. The inner tube of the flange is provided with a fixing ring, the fixing ring is provided with a guide rail, the sealing half ring is provided with a sliding groove, and the guide rail is slidably connected to the sliding groove; The guide rail is inclined, and the guide rail gradually tilts towards the central axis of the fixed ring from the outside to the inside; the sliding groove matches the guide rail. The fixing ring is threaded with a fixing bolt, which passes through the inner wall of the fixing ring and abuts against the inner wall of the flange inner tube; The inner wall of the flange inner tube is provided with a positioning protrusion, the fixing ring is provided with a positioning groove, and the positioning protrusion is provided in the positioning groove; The sealing semi-ring is equipped with a support plate; The support plate is provided with grouting holes.

2. The rear-opening sleeve sealing structure according to claim 1, characterized in that: A sealant is provided between the inner flange tube and the outer flange tube.

3. The rear-opening sleeve sealing structure according to claim 1, characterized in that: The filling ring comprises several layers of tearable rubber pads.

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