Pipeline through-wall structure

Abstract

The utility model relates to the field of building construction, in particular to a pipeline wall penetrating structure which comprises a wall. The steel sleeve is pre-buried in the wall body, the two ends of the steel sleeve are flush with the surface of the wall body, and holes are formed in the two end portions of the steel sleeve; the pipeline penetrates through the steel sleeve, and the pipeline and the steel sleeve are concentrically arranged; the two sealing discs are arranged on the positions, located on the two sides of the wall body, of the pipeline in a sleeving mode correspondingly and installed on the wall body; wherein a check ring is welded in the middle of the portion, located in the steel sleeve, of the pipeline, oil hemp is arranged on the check ring, the space between the steel sleeve and the pipeline is filled with the oil hemp, and the positions, located on the two sides of the oil hemp, between the steel sleeve and the pipeline are filled with asbestos cement. The fireproof, waterproof, heat preservation and anti-seismic performance and structural strength of the pipeline installation position are enhanced through the oil hemp, the asbestos cement and the sealing disc, and one-time sealing is achieved; the liquid injection channel and the liquid distribution holes are formed in the steel sleeve, so that leakage checking and vacancy filling type secondary sealing is achieved.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to a pipe penetrating wall structure. Background Art

[0002] Pipe penetration technology is an indispensable part of building construction, and with the continuous improvement of construction standards, the requirements for thermal insulation and sealing are also getting higher and higher.

[0003] The current practice is generally to reserve a hole in the wall, then install the pipe directly at the hole, and use foamed polyurethane to fill the gap between the pipe and the wall hole. Although this treatment can achieve a certain insulation and sealing effect, there are still many gaps between the pipe and the wall that cannot be filled by foamed polyurethane, especially in the inner position, there will still be air leakage and water leakage; at the same time, when the wall changes, such as settlement, deformation, etc., it is also easy to cause damage to the pipe. Utility Model Content

[0004] In order to improve the thermal insulation, sealing performance and structural strength of the pipeline installation location, the present application provides a pipeline wall penetration structure, including:

[0005] Wall;

[0006] The steel casing is pre-buried in the wall, with both ends of the steel casing flush with the wall surface and holes formed at both ends;

[0007] The pipeline passes through the steel casing, and the pipeline and the steel casing are concentrically arranged;

[0008] There are two sealing discs, which are respectively sleeved on the positions of the pipeline on both sides of the wall and installed on the wall to support the pipeline and seal the opening;

[0009] Among them, a retaining ring is welded in the middle of the pipe inside the steel casing, and hemp is provided on the retaining ring. The hemp is filled between the steel casing and the pipe, and asbestos cement is filled on both sides of the hemp between the steel casing and the pipe.

[0010] By adopting the above technical solution, the setting of hemp and asbestos cement strengthens the fire prevention, waterproofing, thermal insulation, earthquake resistance and other properties of the pipeline installation location; the setting of the sealing plate for support and further sealing greatly improves the overall structural strength.

[0011] Preferably, the steel casing is provided with an injection channel, which extends from the end face of the steel casing along the axial direction of the steel casing, and the inner wall of the steel casing is processed with a liquid distribution hole connected to the injection channel, and the medium can enter the annular space of the steel casing through the injection channel and the liquid distribution hole.

[0012] By adopting the above technical solution, during operation, the flowing glue liquid is injected from the injection channel through the injection equipment. In the process of the glue liquid passing through the liquid distribution hole, it gradually enters the unfilled gap between the steel casing and the pipeline, fully contacts with the surrounding structure and combines into a whole, which greatly improves the sealing and structural stability.

[0013] Preferably, a plurality of injection channels are provided, and both ends of the injection channels penetrate the steel casing.

[0014] By adopting the above technical solution, the speed of injecting glue liquid is increased.

[0015] Preferably, the liquid distribution holes are gradually densely distributed from both ends to the middle of the steel casing.

[0016] By adopting the above technical solution, since the liquid distribution holes are more densely distributed in the oily area, the problem of insufficient filling in the middle part can be better solved.

[0017] Preferably, a clearance hole capable of communicating with the liquid injection channel is processed at a position on the sealing disk corresponding to the liquid injection channel, and a top screw is connected to the inner thread of the clearance hole.

[0018] The above technical solution is mainly used to block the clearance hole.

[0019] Preferably, one end of the top screw is processed with a slot.

[0020] By adopting the technical solution, the operation is convenient.

[0021] Preferably, the sealing disk protrudes toward one side of the steel casing and forms a plug, and the outer diameter of the plug is matched with the inner diameter of the steel casing.

[0022] Preferably, the contact position between the sealing disk and the steel casing and the contact position between the sealing disk and the pipeline are coated with elastic sealant.

[0023] By adopting the above technical solution, the elastic sealant has a certain amount of expansion and contraction, and can be clamped between the sealing disk and the steel casing or between the sealing disk and the pipeline, thereby further improving the sealing performance.

[0024] Preferably, a wing ring is welded on the outer wall of the steel casing.

[0025] By adopting the above technical solution, the wing ring can enhance the rigidity and stability of the steel casing, thereby better protecting the wall installation location from water damage.

[0026] In summary, this application includes the following beneficial technical effects:

[0027] Compared with the prior art, the pipe wall penetration structure provided in the embodiment of the utility model enhances the fire resistance, waterproofness, heat preservation, seismic resistance and structural strength of the pipe installation position through hemp, asbestos cement and sealing disc, thereby realizing primary sealing; and realizes secondary sealing of leak detection and gap filling by arranging liquid injection channels and liquid distribution holes on the steel casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the pipe-through-the-wall structure in the embodiment of the present application;

[0029] Figure 2 is a cross-sectional view showing the internal structure of the steel casing in an embodiment of the present application;

[0030] Figure 3 is a side view of a steel casing in an embodiment of the present application;

[0031] Figure 4 It is a side view of the sealing disk in the embodiment of the present application.

[0032] Explanation of the reference numerals in the accompanying drawings: 1. wall; 2. steel casing; 21. wing ring; 22. injection channel; 23. liquid distribution hole; 3. pipeline; 31. retaining ring; 4. sealing disk; 41. installation port; 42. plug; 43. top screw; 5. hemp oil; 6. asbestos cement. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 This application is described in further detail.

[0034] The present application embodiment discloses a pipe wall penetration structure. Figure 1 The pipeline wall-penetrating structure includes a wall 1, a steel casing 2 embedded in the wall 1, a pipeline 3 passing through the steel casing 2 and arranged concentrically with the steel casing 2, and a sealing plate 4 installed on both sides of the wall 1 for supporting the pipeline 3 and sealing the pipe opening of the steel casing 2.

[0035] The steel casing 2 is arranged horizontally, with a hollow interior and openings at both ends. Before embedding, a paint layer is applied inside and outside the steel casing 2, mainly for rust prevention. After embedding, the two ends of the steel casing 2 are flush with the surface of the wall 1 and holes are formed at the two end positions. A wing ring 21 is welded in the middle of the outer wall of the steel casing 2, which can enhance the rigidity and stability of the steel casing 2, thereby better protecting the installation position of the wall 1 from water damage.

[0036] Reference Figure 1A retaining ring 31 is welded in the middle of the pipe 3 inside the steel casing 2, and a hemp 5 is provided at the retaining ring 31. The hemp 5 is filled between the steel casing 2 and the pipe 3. The hemp 5 is a braid made of hemp silk or twisted hemp, and its thickness is 1.2 to 1.5 times the annular gap between the steel casing 2 and the pipe 3, and its length is 1.5 to 2.5 times the circumference of the annular gap. It is qualified when it is pounded in and compacted with a flat ash chisel until the flat ash chisel hits the hemp silk and makes a metallic sound when the iron hammer hits the flat ash chisel. The position between the steel casing 2 and the pipe 3 on both sides of the hemp 5 is filled with asbestos cement 6. When filling, the asbestos cement 6 is sent into the gap between the steel casing 2 and the pipe 3 with a flat ash chisel, and the asbestos cement 6 is tightened by knocking.

[0037] The setting of the oil hemp 5 mainly plays a positioning role, preventing the asbestos cement 6 from leaking through the gap of the retaining ring 31 when punching, causing the pipeline 3 to sink or deflect relative to the steel casing 2, resulting in the damage of the asbestos cement 6; at the same time, the setting of the oil hemp 5 and asbestos cement 6 strengthens the fireproof, waterproof and thermal insulation properties of the installation position of the pipeline 3, and has higher strength and better earthquake resistance.

[0038] Since the gap between the steel casing 2 and the pipe 3 is relatively small, and the operation is easily affected by the proficiency of the staff, the closer to the oil hemp 5, the more likely it is that the asbestos cement 6 will be insufficiently filled, affecting the overall structural strength, thermal insulation and sealing. To solve this technical problem, the inventor has proposed the following solution.

[0039] Reference Figure 2 and Figure 3 A plurality of injection channels 22 are processed on the steel casing 2, and the injection channels 22 extend from one end of the steel casing 2 to the other end along the axial direction of the steel casing 2, that is, they penetrate the steel casing 2, and a plurality of liquid distribution holes 23 connected with the corresponding liquid injection channels 22 are processed on the inner wall of the steel casing 2 at the position corresponding to each injection channel 22, and the liquid distribution holes 23 are gradually densely distributed from the two ends to the middle of the steel casing 2.

[0040] Reference Figure 1 and Figure 2 During operation, the flowing glue liquid is injected from the injection channel 22 through the injection equipment. This step can be appropriately pressurized. During the process of the glue liquid passing through the liquid distribution holes 23, it gradually enters the unfilled gap between the steel casing 2 and the pipeline 3, fully contacts with the surrounding structure and combines into a whole. Since the liquid distribution holes 23 are more densely distributed at the oil hemp 5, the problem of insufficient filling in the middle part can be better solved.

[0041] Reference Figure 1 and Figure 4The sealing disc 4 is made of stainless steel and is provided with two of them. The sealing disc 4 is processed with an installation port 41. The two sealing discs 4 are respectively mounted on the positions of the pipeline 3 on both sides of the wall 1 through the installation ports 41, and are installed on the wall 1 through fixings. The fixings can be expansion bolts, but are not limited to expansion bolts. The sealing disc 4 protrudes toward one side of the steel casing 2 and forms a plug 42. The outer diameter of the plug 42 matches the inner diameter of the steel casing 2. When the sealing disc 4 is installed on the wall 1, the outer surface of the plug 42 fits the inner surface of the steel casing 2. In order to improve the sealing performance between the sealing disc 4, the steel casing 2 and the pipeline 3, elastic sealant is applied to the contact position between the sealing disc 4 and the steel casing 2 and the contact position between the sealing disc 4 and the pipeline 3. The elastic sealant has a certain amount of expansion and contraction and can be clamped between the sealing disc 4 and the steel casing 2 or between the sealing disc 4 and the pipeline 3.

[0042] The sealing disc 4 is processed with a clearance hole at the position corresponding to the injection channel 22. When the sealing disc 4 is installed on the wall 1, the clearance hole is connected to the injection channel 22. The step of injecting glue can be before installing the sealing disc 4 or after installing the sealing disc 4. If the glue is injected after installing the sealing disc 4, the sealing disc 4 can play a supporting and limiting role to prevent the pipeline 3 from deviating relative to the steel casing 2. The inner thread of the clearance hole is connected with a top screw 43 to block the clearance hole. A slot is processed at one end of the top screw 43 to facilitate the operation of the staff.

[0043] Compared with the prior art, the pipe wall penetration structure provided in the embodiment of the utility model strengthens the fireproof, waterproof, heat-insulating, seismic resistance and structural strength of the installation position of the pipe 3 by means of hemp 5, asbestos cement 6 and sealing disk 4, thereby realizing primary sealing; and by arranging the liquid injection channel 22 and the liquid distribution hole 23 on the steel casing 2, a secondary sealing of leak detection and gap filling type is realized.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipe through-the-wall structure, It is characterized in that include: Wall (1); A steel casing (2) is pre-buried in the wall (1), with both ends of the steel casing (2) flush with the surface of the wall (1) and holes formed at both ends; The pipeline (3) passes through the steel casing (2), and the pipeline (3) and the steel casing (2) are arranged concentrically; Two sealing discs (4) are provided, and the two sealing discs (4) are respectively sleeved on the positions of the pipeline (3) on both sides of the wall (1) and installed on the wall (1), and are used to support the pipeline (3) and seal the opening; A retaining ring (31) is welded in the middle of the pipe (3) inside the steel casing (2), and a hemp (5) is provided on the retaining ring (31). The hemp (5) is filled between the steel casing (2) and the pipe (3), and asbestos cement (6) is filled at the positions on both sides of the hemp (5) between the steel casing (2) and the pipe (3).

2. The pipeline wall penetration structure according to claim 1, Features: The steel casing (2) is provided with a liquid injection channel (22), which extends from the end surface of the steel casing (2) along the axial direction of the steel casing (2), and the inner wall of the steel casing (2) is processed with a liquid distribution hole (23) connected to the liquid injection channel (22), so that the medium can enter the annular space of the steel casing (2) through the liquid injection channel (22) and the liquid distribution hole (23).

3. The pipeline wall penetration structure according to claim 2, Features: A plurality of injection channels (22) are provided, and both ends of the injection channels (22) penetrate the steel casing (2).

4. The pipeline wall penetration structure according to claim 3, Features: The liquid distribution holes (23) are gradually densely distributed from the two ends to the middle of the steel casing (2).

5. The pipeline wall penetration structure according to claim 2, Features: A clearance hole capable of communicating with the liquid injection channel (22) is processed on the sealing disk (4) at a position corresponding to the liquid injection channel (22), and a top screw (43) is connected to the inner thread of the clearance hole.

6. The pipeline wall penetration structure according to claim 5, Features: One end of the top screw (43) is processed with a slot.

7. The pipeline wall penetration structure according to claim 1, 5 or 6, Features: The sealing disk (4) protrudes toward one side of the steel casing (2) to form a plug (42), and the outer diameter of the plug (42) is matched with the inner diameter of the steel casing (2).

8. The pipeline wall penetration structure according to claim 1, Features: The contact position between the sealing disc (4) and the steel casing (2) and the contact position between the sealing disc (4) and the pipeline (3) are both coated with elastic sealing glue.

9. The pipeline wall penetration structure according to claim 1, Features: A wing ring (21) is welded on the outer wall of the steel casing (2).

Images