Pre-buried through-wall pipe protection sealing assembly

Abstract

A pre-buried through-wall pipe protection sealing assembly comprises a protection sleeve and an anti-impact cap of a cylindrical cap structure, the protection sleeve is arranged in a through-wall hole formed in a sealed wall in a sleeved mode, the two ends of the protection sleeve extend out of the two side faces of the sealed wall respectively, a sealing plate is arranged at an outer port of the protection sleeve, a round hole is formed in the center of the sealing plate, and the anti-impact cap is arranged in the round hole. A cable is sleeved in the protective sleeve from the round hole, the impact-resistant cap is sleeved on the outer end portion of the protective sleeve, the cable penetrates through a center hole of an end plate of the impact-resistant cap, a vertical folding edge is arranged on the edge portion of the inner end of the impact-resistant cap, the vertical folding edge is attached to a wall surface, and a through hole is formed in the vertical folding edge. A screw is inserted into the through hole to fixedly connect the impact-resistant cap with the closed wall body; according to the assembly, the anti-impact cap and the protective sleeve form the annular buffer cavity, the anti-impact cap can crumple towards the annular buffer cavity to absorb energy when deforming due to strong impact force, the protective sleeve is prevented from being impacted, the phenomenon that the through-wall pipe is loosened in a wall is not prone to occurring, and the protection safety of the through-wall pipe is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of building protection devices, in particular to a pre-buried wall-penetrating pipe protection and sealing component. Background Art

[0002] The basement of a civil air defense project is an enclosed space during wartime. Various wall-penetrating electrical cables need to pass through protective enclosed partition walls. The wall-penetrating pipe structure of the civil air defense project needs to be able to prevent shock waves from entering the protected space and causing damage. At the same time, the connection between the electrical cables and the partition walls needs to be protected and sealed to prevent external pollution sources such as toxic agents from entering the interior along the electrical lines, thereby affecting the safety of the entire air-raid basement.

[0003] At present, the wall-penetrating pipes in civil air defense projects are sealed by filling them with fillers. However, the shock waves generated by the explosion can easily cause the fillers to move and deform in the pipe, resulting in poor sealing effect. At the same time, resistance plates are fixedly installed at the ends of the wall-penetrating pipes to resist shock waves. Such resistance plates are usually rigidly connected to the ends of the wall-penetrating pipes. When resisting larger shock waves, they will impact the wall-penetrating pipes inwards, causing the wall-penetrating pipes to loosen inside the wall. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a pre-buried wall-penetrating pipe protection and sealing component.

[0005] The technical scheme of the utility model is: a pre-buried wall-penetrating pipe protective closed component, comprising a protective sleeve and an impact-resistant cap of a cylindrical cap structure, the protective sleeve as a pre-buried pipe, which is made of a section of steel pipe, the protective sleeve is inserted into a wall-penetrating hole arranged on a closed wall, the size of the wall-penetrating hole matches the size of the protective sleeve, the two ends of the protective sleeve respectively extend out of the inner side and the outer side of the closed wall, the outer port of the protective sleeve is provided with a sealing plate, the center of the sealing plate is provided with a circular hole, the cable is inserted into the protective sleeve from the circular hole, the cable is located in the center of the protective sleeve, the fixed sleeve of the impact-resistant cap is mounted on the outer end of the protective sleeve, the cable passes through the center hole of the impact-resistant cap end plate, a vertical folded edge is provided on the inner end edge of the impact-resistant cap, the vertical folded edge is a circular ring, the vertical folded edge fits the wall surface, and a plurality of through holes are evenly distributed on the vertical folded edge, screws are inserted from the through holes to fix the impact-resistant cap to the closed wall.

[0006] Preferably, the size of the impact-resistant cap is larger than that of the protective sleeve, and an annular buffer chamber is formed between the protective sleeve and the impact-resistant cap.

[0007] Preferably, an extension tube is provided at the center hole of the end plate of the impact-resistant cap, the extension tube corresponds to the center of the end plate, and the size of the extension tube matches the size of the cable.

[0008] Preferably, a sealed filler is inserted between the cable and the protective sleeve, and both ends of the sealed filler are flush with the two end surfaces of the protective sleeve.

[0009] Preferably, the closed filler is asbestos cement.

[0010] Preferably, a hollow section is provided in the middle of the closed filler, and asphalt hemp is stuffed into the hollow section.

[0011] Preferably, a cavity is provided in the middle of the asphalt hemp wool, and asphalt hemp wool filling layers are formed at both ends of the cavity, and the cavity is located in the middle of the protective sleeve.

[0012] Preferably, an annular sealing rib is welded in the middle of the outer side surface of the protective sleeve, the annular sealing rib is vertically fixed to the outer side surface of the protective sleeve, and the annular sealing rib is embedded in the closed wall.

[0013] The beneficial technical effects of the utility model are:

[0014] (1) The utility model resists shock waves by arranging an impact-resistant cap on the outer end of the protective sleeve. The vertical folded edge of the impact-resistant cap is tightly fitted with the wall surface. An extension tube is provided on the end plate and is tightly sleeved on the cable. A closed structure is formed on the outside of the protective sleeve. Combined with the filler inside the protective sleeve, a two-stage closed structure is formed, which has a strong cable sleeve sealing effect.

[0015] (2) The impact-resistant cap and the protective sleeve of the utility model form an annular buffer chamber. When the impact-resistant cap is deformed by a strong impact force, it can collapse into the annular buffer chamber to absorb energy, thereby avoiding impact on the protective sleeve. It is not easy for the wall-penetrating pipe to loosen in the wall, thereby ensuring its protective safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model in use state;

[0017] Figure 2 yes Figure 1 AA section structural diagram;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the impact-resistant cap of the utility model.

[0019] In the figure, 11. protective sleeve, 111. sealing plate, 112. annular sealing rib, 12. impact-resistant cap, 121. end plate, 122. vertical folded edge, 123. extension pipe, 124. annular buffer chamber, 125. through hole, 13. screw, 14. asbestos cement, 15. asphalt hemp, 16. cavity, 17. cable. DETAILED DESCRIPTION

[0020] Example 1, see the attached specification Figure 1-3 A pre-buried wall-penetrating pipe protective and sealed component comprises a protective sleeve 11 and an impact-resistant cap 12 of a cylindrical cap structure. The protective sleeve 11 is inserted into a wall-penetrating hole arranged on a closed wall. Two ends of the protective sleeve 11 extend out of the inner side and the outer side of the closed wall respectively. An annular sealed rib 112 is welded on the middle part of the outer side of the protective sleeve 11. The annular sealed rib 112 is embedded in the closed wall. The protective sleeve 11 is fixed by the annular sealed rib 112 and plays a role in axially limiting the protective sleeve 11. The protective sleeve 11 is not easy to slide axially in the wall hole when external force is applied.

[0021] A sealing plate 111 is provided at the outer end of the protective sleeve 11, and a circular hole is provided in the center of the sealing plate 111. The cable 17 is inserted into the protective sleeve 11 through the circular hole. A certain filler space is provided between the protective sleeve 11 and the cable 17. The impact-resistant cap 12 is sleeved on the outer end of the protective sleeve 11, and the cable 17 passes through the center hole of the end plate 121 of the impact-resistant cap 12. A vertical folded edge 122 is provided on the inner end edge of the impact-resistant cap 12, and the vertical folded edge 122 is in contact with the wall surface. A through hole 125 is provided on the vertical folded edge 122. A screw 13 is inserted into the through hole 125 to fix the impact-resistant cap 12 to the closed wall. The vertical folded edge 122 of the impact-resistant cap 12 is in close contact with the wall surface, and the end plate 121 is tightly sleeved on the cable 17, forming a closed structure on the outside of the protective sleeve 11.

[0022] The size of the impact-resistant cap 12 is larger than that of the protective sleeve 11 , and an annular buffer chamber 124 is formed between the protective sleeve 11 and the impact-resistant cap 12 . When the impact-resistant cap 12 is deformed by a strong impact force, it can collapse into the annular buffer chamber 124 to absorb energy and avoid impacting the protective sleeve 11 .

[0023] An extension tube 123 is provided at the center hole of the end plate 121 of the impact-resistant cap 12. The size of the extension tube 123 matches the size of the cable 17. The extension tube 123 is used to increase the contact area between the center hole and the cable 17, so that the sealing effect is better and the gas is not easy to enter the annular buffer chamber 124 from the center hole.

[0024] The protective sealing component of this embodiment resists shock waves by disposing an impact-resistant cap 12 on the outer end of the protective sleeve 11. The vertical folded edge 122 of the impact-resistant cap 12 is tightly fitted to the wall, and the extension tube 123 on the end plate 121 is tightly sleeved on the cable 17, forming a closed structure on the outside of the protective sleeve 11, which has a strong cable 17 sleeve sealing effect. At the same time, when the impact-resistant cap 12 is deformed by a strong impact force, it can collapse and absorb energy into the annular buffer chamber 124 to avoid impacting the protective sleeve 11. It is not easy for the wall-penetrating pipe to loosen in the wall, and has a strong impact resistance.

[0025] Example 2, see the attached specification Figure 1 On the basis of the first embodiment, a closed filler is inserted between the cable 17 and the protective sleeve 11. The closed filler is asbestos cement 14. The asbestos cement 14 has the characteristics of heat preservation and strong impact resistance. It is used as a primary sealing filler on both sides. A hollow section is provided in the middle of the closed filler. Asphalt hemp 15 is inserted in the hollow section. The asphalt hemp 15 has multiple functions such as waterproof, moisture-proof, anti-corrosion, heat insulation, enhanced compression resistance and tensile resistance. It is used as a secondary sealing filler in the middle. A cavity 16 is provided in the middle of the asphalt hemp 15. The cavity 16 is located in the middle of the protective sleeve 11. The cavity 16 has the function of absorbing energy to avoid the impact force from seriously damaging the internal primary filler and secondary filler, thereby ensuring the closed protection effect of the filler.

Claims

1. A pre-buried wall-penetrating pipe protection and sealing component, characterized by: The invention relates to an impact-resistant cap having a protective sleeve and a cylindrical cap structure. The protective sleeve is inserted into a through-wall hole arranged on a closed wall. Two ends of the protective sleeve extend out of the inner side and the outer side of the closed wall respectively. A sealing plate is provided at the outer end of the protective sleeve. A circular hole is provided at the center of the sealing plate. The cable is inserted into the protective sleeve through the circular hole. The impact-resistant cap is sleeved on the outer end of the protective sleeve. The cable passes through the central hole of the end plate of the impact-resistant cap. A vertical fold is provided on the inner end edge of the impact-resistant cap. The vertical fold is in contact with the wall surface. A through hole is provided on the vertical fold. Screws are inserted into the through hole to fix the impact-resistant cap to the closed wall.

2. The pre-buried wall-penetrating pipe protection and sealing assembly according to claim 1 is characterized in that: The size of the impact-resistant cap is larger than that of the protective sleeve, and an annular buffer chamber is formed between the protective sleeve and the impact-resistant cap.

3. The pre-buried wall-penetrating pipe protection and sealing assembly according to claim 2 is characterized in that: An extension tube is provided at the central hole of the end plate of the impact-resistant cap, and the size of the extension tube matches the size of the cable.

4. The pre-buried wall-penetrating pipe protection and sealing assembly according to claim 1 is characterized in that: A sealed filler is inserted between the cable and the protective sleeve.

5. The pre-buried wall-penetrating pipe protection and sealing assembly according to claim 1 is characterized in that: An annular sealing rib is welded on the middle part of the outer side surface of the protective sleeve, and the annular sealing rib is embedded in the closed wall.

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