Underground space top plate outgoing line pipeline protection device

Abstract

The utility model relates to an underground space top plate wire outlet pipeline protection device which structurally comprises a protection pipe arranged outside a pipeline in a sleeving mode, a lower sealing cover arranged at the lower end of the protection pipe, an upper sealing cover arranged at the upper end of the protection pipe, a supporting plate arranged on the outer wall of the protection pipe and a water stop ring arranged on the protection pipe in a sleeving mode. The protection pipe is arranged in a top plate of the underground space in a penetrating mode, and the water stop ring is located in the top plate of the underground space. The influence of soil layer settlement on the outgoing line pipeline in the earthwork backfilling process is effectively avoided, the protection pipe can block direct extrusion of earthwork, the supporting plate provides additional support, displacement of the pipeline due to settlement is prevented, and therefore the problems of support deformation, sleeve crack, leakage and the like caused by pipeline movement are avoided. Through the plugging effect of the waterproof sealant layer and the silk thread ring layer, the waterproof performance of the gap between the pipeline and the protection pipe is enhanced, and it is ensured that water cannot permeate into the underground space through the gap.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipeline protection device, in particular to a roof outlet pipeline protection device for underground space. BACKGROUND

[0002] In the current development and utilization of underground space, the roof outlet pipeline as an important channel connecting the underground space and the outside world is of great importance in terms of safety and stability. However, in the actual construction process, the protection of the roof outlet pipeline has always been a difficult problem that cannot be ignored.

[0003] The traditional protection method for the roof outlet pipeline mainly uses a wall bushing to close the gap between the roof and the pipeline. Although this method plays a protective role to some extent, its waterproof performance and stability are often difficult to guarantee when faced with complex underground environments and long-term soil pressure. In particular, during the backfilling process of the foundation pit, the surrounding area of the outlet pipeline is prone to soil settlement due to the insufficient compaction of the backfill soil. This settlement not only causes additional pressure on the pipeline from the soil, but also may cause the pipeline to displace downward, thereby causing a series of problems such as deformation of the support bracket supporting the pipeline and cracks in the wall bushing.

[0004] More seriously, when the pipeline displaces due to settlement, its original waterproof layer may be damaged, causing water to penetrate into the underground space through cracks or gaps. This not only affects the use environment of the underground space, but also may pose a threat to the safety of the underground structure. In extreme cases, the pipeline may even completely fall off into the underground space due to settlement, causing a large area of cracks at the outlet, and thus causing serious consequences such as water accumulation in the underground space. SUMMARY

[0005] The purpose of the utility model is to provide a roof outlet pipeline protection device for underground space to solve the problems of settlement and leakage of the roof outlet pipeline.

[0006] The utility model is implemented as follows: a roof outlet pipeline protection device for underground space, which comprises a protective tube arranged outside the pipeline, a lower cover arranged at the lower end of the protective tube, an upper cover arranged at the upper end of the protective tube, a support plate arranged on the outer wall of the protective tube, and a water stop ring arranged on the protective tube; the protective tube is arranged in the roof of the underground space, and the water stop ring is located in the roof of the underground space.

[0007] Further, an annular bottom plate is arranged on the lower side of the roof, a bolt is arranged on the annular bottom plate, a through hole corresponding to the bolt is formed in the lower cover, and a nut is arranged on the bolt.

[0008] Further, the lower cover comprises a horizontally arranged lower annular cover plate and a lower sleeve extending upwardly at the inner end of the lower annular cover plate, the inner diameter of the annular cover plate is greater than the outer diameter of the pipeline and smaller than the inner diameter of the protective tube.

[0009] Further, a flange is arranged on the inner wall of the protective tube, and a sealing ring is arranged on the lower side of the flange.

[0010] Further, the upper cover comprises an upper annular cover plate at the upper end and an upper sleeve extending downwardly at the inner end of the upper annular cover plate, the inner diameter of the upper annular cover plate is greater than the outer diameter of the pipeline and smaller than the inner diameter of the protective tube.

[0011] Further, a pipeline clamp is arranged on the pipeline, the size of the pipeline clamp is greater than the protective tube, and the lower end of the pipeline clamp is adjacent to the upper end of the upper annular cover plate.

[0012] Further, a silk coil layer is arranged between the pipeline and the gap of the protective tube, and the silk coil layer is located below the upper sleeve.

[0013] Further, a waterproof sealing rubber layer is arranged from the upper end of the silk coil layer to the lower side of the upper annular cover plate.

[0014] Further, the support plate is a trapezoidal vertical plate located above the top plate, and the lower end of the support plate is in contact with the upper side of the top plate.

[0015] The utility model effectively avoids the influence of soil layer settlement on the outgoing pipeline in the earthwork backfill process, the protective tube can block the direct extrusion of earthwork, the support plate provides additional support, prevents the displacement of the pipeline due to settlement, thereby avoiding the problems of support deformation, sleeve crack and leakage caused by pipeline movement.

[0016] The utility model discloses a waterproof sealing rubber layer and silk coil layer are arranged, the waterproof performance of the gap between the pipeline and the protective tube is enhanced, and it is ensured that moisture does not penetrate into underground space through these small gaps, meanwhile, a solid waterproof barrier is formed by the water stop ring, and the moisture entering underground space through the through hole of the top plate is effectively prevented.

[0017] The utility model discloses a structure is reasonable, easy to operate and execute, greatly saves construction time and cost, and the connection and fixed mode between each component are simple and reliable, convenient for the maintenance and overhaul work of later period, reduces the later maintenance construction and rework cost, provides favorable conditions for improving engineering construction quality and economic benefit.

[0018] The utility model discloses be applicable to different types of underground space outgoing pipeline engineering, can adjust size and material according to actual needs, has wide applicability. DRAWINGS

[0019] Figure 1 It is the structural schematic diagram of the utility model.

[0020] Figure 2 It is Figure 1 The enlarged view of A in the figure.

[0021] Figure 3 It is Figure 1 The enlarged view of B in the figure.

[0022] In the figure: 1, pipeline, 2, protective pipe, 3, lower cover, 3-1, lower annular bottom plate, 3-2, lower sleeve, 4, upper cover, 4-1, upper annular cover plate, 4-2, upper sleeve, 5, support plate, 6, water stop ring, 7, top plate, 8, annular bottom plate, 9, bolt, 10, flange, 11, sealing ring, 12, silk coil layer, 13, waterproof sealing glue layer, 14, pipeline clamp. DETAILED DESCRIPTION

[0023] As Figures 1-3 shown, the utility model includes setting protective pipe 2 outside pipeline 1, setting lower cover 3 at the lower end of protective pipe 2, setting lower cover 4 at the upper end of protective pipe 2, setting support plate 5 on the outer wall of protective pipe 2 and setting water stop ring 6 on protective pipe 2.

[0024] As Figure 3 shown, the through hole for protective pipe 2 to pass through is formed on the top plate 7 of underground space, and pipeline 1 and protective pipe 2 are arranged in the top plate 7 of underground space, and the annular bottom plate 8 matched with lower cover 3 is arranged on the lower side of top plate 7, and the inner diameter of annular bottom plate 8 is greater than the outer diameter of protective pipe 2, so that protective pipe 2 passes through. The bolt 9 is arranged on the annular bottom plate 8, and the through hole corresponding to lower cover 3 is formed on lower cover 3, and lower cover 3 is fixed on the lower side of top plate 7 by the cooperation of bolt 9 and nut. Lower cover 3 includes lower annular cover plate 3-1 horizontally arranged at the lower end and lower sleeve 3-2 extending upward at the inner end of lower annular cover plate 3-1, and cover sealing ring 3-3 is arranged on the inner circle of annular cover plate 3-1. The inner diameter of lower annular cover plate 3-1 is greater than the outer diameter of pipeline 1 and less than the inner diameter of protective pipe 2, so that lower sleeve 3-2 extends into the gap between pipeline 1 and protective pipe 2. The outer diameter of lower annular cover plate 3-1 is greater than the outer diameter of protective pipe 2. The flange 10 is arranged on the inner wall of protective pipe 2, the sealing ring 11 is arranged on the lower side of flange 10, and the lower end of sealing ring 11 is in contact with the upper end of lower sleeve 3-2. When lower cover 3 is fixed by bolt 9, the upper end of lower sleeve 3-2 of lower cover 3 extrudes sealing ring, so that sealing ring is deformed and fills the gap between pipeline 1 and protective pipe 2.

[0025] Supporting plates 5 are located above the through hole of the top plate 7, the lower end of the supporting plate 5 is in contact with the upper side of the top plate 7, and the supporting plate 5 is used for supporting the protective pipe 2 to avoid moving downward along the through hole of the top plate 7. The supporting plate 5 has two or more than two, which supports the protective pipe 2 together. In this embodiment, the supporting plate 5 is a trapezoidal vertical plate.

[0026] As shown in Figure 2 The upper end of the upper cover 4 includes an upper annular cover plate 4-1 and an upper sleeve 4-2 extending downward at the inner end of the upper annular cover plate 4-1. The inner diameter of the upper annular cover plate 4-1 is greater than the outer diameter of the pipeline 1 and less than the inner diameter of the protective pipe 2, so that the upper sleeve 4-2 enters the gap between the pipeline 1 and the protective pipe 2. The outer diameter of the upper annular cover plate 4-1 is greater than the outer diameter of the protective pipe 2, so that the upper cover 4 is arranged at the upper end of the protective pipe 2.

[0027] A wire coil layer 12 is arranged near the upper end of the gap between the pipeline 1 and the protective pipe 2, and the wire coil layer 12 is located near the upper end of the protective pipe 2 and below the upper sleeve 4-2. The wire coil layer 12 is used to block the gap between the pipeline 1 and the protective pipe 2. The wire coil layer 12 is 200mm pitch hemp wire winding.

[0028] A waterproof sealing glue layer 13 is arranged on the upper end of the wire coil layer 12 to the lower side of the upper annular cover plate 4-1 of the upper cover 4, and the waterproof sealing glue layer is filled with waterproof sealing glue.

[0029] The water stop ring 6 is a water stop steel ring, which builds a solid waterproof line between the protective pipe 2 and the top plate 7, significantly improves the anti-permeability by prolonging the path of moisture penetration, effectively prevents the occurrence of water leakage and seepage, and ensures that the moisture cannot enter the underground space through the through hole of the top plate 7 penetrating the protective pipe 2.

[0030] The protective pipe 2 is a steel pipe with a wall thickness of 10mm, which can effectively block the extrusion of earthwork on the pipeline 1, protect the integrity of the pipeline 1, and avoid the problem of rupture and leakage of the pipeline 1 caused by pressure.

[0031] A pipeline clamp 14 is arranged on the pipeline 1, the pipeline clamp 14 is composed of two semicircular steel plates connected by fixing bolts, and a rubber ring is arranged on the inner circle of the pipeline clamp 14 in contact with the pipeline 1 to increase the friction between the pipeline clamp 14 and the pipeline 1, prevent the pipeline 1 from sliding, and at the same time, the elasticity of the rubber ring can also play a certain buffering protection role on the pipeline 1, reduce the damage to the surface of the pipeline caused by clamping pressure. The pipeline clamp 14 is located above the protective pipe 2, the size of the pipeline clamp 14 is greater than the protective pipe 2, and the lower end of the pipeline clamp 14 is in contact with the upper end of the upper annular cover plate 4-1. The pipeline clamp 14 is used to clamp the pipeline 1, and the pipeline 1 is prevented from moving downward under the support of the protective pipe 2.

[0032] The construction steps of the utility model are as follows:

[0033] S1, making the protection pipe 2, specifically including cutting the protection pipe 2 to a predetermined length, and welding the support plate 5 at a predetermined position of the protection pipe 2, and fixing the water stop ring 6 at a predetermined position of the protection pipe 2;

[0034] S2, fixing the protection pipe 2 at the position of the outlet during the process of binding the reinforcement mesh of the underground space roof 7, after the acceptance, carrying out the concrete pouring operation of the roof 7, and after the concrete reaches the strength, removing the formwork and the fixing device of the protection pipe 2;

[0035] S3, carrying out the earthwork backfilling above the roof 7, when the backfilling reaches 20-50 cm above the protection pipe 2, installing the pipeline 1, and using the cloth to close the top opening of the protection pipe 2 during the backfilling process to prevent the rainwater or soil from entering;

[0036] S4, after installing the lower cover 3 at the lower end of the protection pipe 2, using the wire coil layer 12 to seal near the upper end of the gap between the protection pipe 2 and the pipeline 1, then pouring the waterproof sealant at the upper end of the gap between the protection pipe 2 and the pipeline 1, and after ensuring the filling is full, installing the upper cover 4, after the installation of the upper cover 4 is completed, installing the pipeline clamp 14 on the pipeline 1 to provide additional support, and finally carrying out the corrosion protection treatment on the external leakage metal to ensure that it is not affected by corrosion for long-term use.

Claims

1. A protective device for cable outlet pipes in the roof of an underground space, characterized in that, It includes a protective pipe fitted outside the pipeline, a lower cap at the lower end of the protective pipe, an upper cap at the upper end of the protective pipe, a support plate on the outer wall of the protective pipe, and a water-stop ring fitted on the protective pipe; the protective pipe passes through the top slab of the underground space, and the water-stop ring is located in the top slab of the underground space.

2. The protective device for underground space roof-mounted pipelines according to claim 1, characterized in that, An annular base plate is provided on the underside of the top plate, and a bolt is provided on the annular base plate. A corresponding through hole is provided on the lower cover, and a nut is provided on the bolt.

3. The protective device for underground space roof-mounted pipelines according to claim 1, characterized in that, The lower cover includes a horizontally arranged lower annular cover plate and a lower sleeve extending upward from the inner end of the lower annular cover plate. The inner diameter of the annular cover plate is larger than the outer diameter of the pipe and smaller than the inner diameter of the protective pipe.

4. The protective device for underground space roof-mounted pipelines according to claim 3, characterized in that, A flange is provided on the inner wall of the protective tube, and a sealing ring is provided on the lower side of the flange.

5. The protective device for underground space roof slab outlet pipes according to claim 1, characterized in that, The upper cover includes an upper annular cover plate at the upper end and an upper sleeve extending downward from the inner end of the upper annular cover plate. The inner diameter of the upper annular cover plate is larger than the outer diameter of the pipe and smaller than the inner diameter of the protective pipe.

6. The protective device for underground space roof slab outlet pipes according to claim 5, characterized in that, A pipe clamp is installed on the pipe, the size of which is larger than that of the protective pipe, and the lower end of the pipe clamp is adjacent to the upper end of the upper annular cover plate.

7. The protective device for underground space roof slab outlet pipes according to claim 5, characterized in that, A wire coil layer is provided between the pipe and the protective pipe, and the wire coil layer is located below the upper sleeve.

8. The protective device for underground space roof slab outlet pipes according to claim 7, characterized in that, A waterproof sealant layer is provided from the upper end of the coil layer to the lower side of the upper annular cover plate.

9. The protective device for underground space roof slab outlet pipes according to claim 1, characterized in that, The support plate is a trapezoidal vertical plate located above the top plate, with its lower end in contact with the upper side of the top plate.

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