Temporary inflatable large-caliber anti-seismic stable casing pipe

Abstract

The utility model discloses a temporary inflatable large-caliber anti-seismic stable casing pipe which comprises an inner pipe, an outer pipe is sleeved outside the inner pipe, and an inner pipe wing plate is annularly fixed on the outer wall of the inner pipe; the inner pipe wing plate is supported on the inner wall of the outer pipe, an outer pipe wing plate is fixed in the middle of the outer wall of the outer pipe in a whole circle, the end faces of the left end and the right end of the outer pipe extend inwards to form arc-shaped outer pipe baffles respectively, inflation holes are formed in the arc-shaped outer pipe baffles, check air valves are arranged in the inflation holes, and the check air valves are communicated with the inflation holes. A circle of air bag is arranged between the outer tube and the inner tube, and an inflation inlet communicated with the air bag is communicated with the inflation hole. The device can be fixed through expansion and extrusion of the air bag, and is simple to install and good in anti-seismic effect.

Description

Technical Field

[0001] The utility model relates to an urban municipal drainage construction structure, in particular to a temporary inflatable large-caliber anti-seismic stable casing. Background Art

[0002] During the mud-water pipe jacking construction process, the slurry is introduced and the slurry outlet pipe connects the pipe jacking machine with the ground screening system. In special circumstances where space is limited, the route of the pipeline needs to pass through some structures. In order to facilitate maintenance, a channel needs to be left on the structure in advance, and a casing structure is formed after the pipeline is inserted.

[0003] According to the 02S404 waterproof casing atlas, if flexible filling materials are used, asphalt, hemp, polystyrene board, polyvinyl chloride foam board and other materials are used. The existing casing fillers have a slow filling speed and the filling effect is not dense enough, making it difficult to meet the requirements of the specifications. Using traditional technology, not only is the casing sealing process cumbersome, but if there are quality problems with the nested pipes in the later construction process that require repair, the disassembly and re-installation process is complicated and wastes materials. In the process of slurry carrying debris and gravel moving in the pipeline, the pipeline will vibrate, which will affect the service life of the nested pipes. Summary of the invention

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a temporary inflatable large-diameter anti-seismic stable casing which is quick and convenient to install and disassemble, whose filling material can be reused and can resist irregular vibration of pipelines.

[0005] The utility model discloses a temporary inflatable large-diameter earthquake-resistant and stable casing, comprising an inner tube, an outer tube is arranged outside the inner tube, and an inner tube wing plate is formed on the outer wall of the inner tube; the inner tube wing plate is supported on the inner wall of the outer tube, and an outer tube wing plate is formed in a whole circle in the middle of the outer wall of the outer tube; the end faces at the left and right ends of the outer tube extend inwards respectively to form an arc-shaped outer tube baffle plate, an inflation hole is opened on the arc-shaped outer tube baffle plate, a check valve is arranged in the inflation hole, a circle of air bags is arranged between the outer tube and the inner tube, and the inflation port connected to the air bag is connected to the inflation hole.

[0006] Beneficial effects of the utility model:

[0007] (1) The device of the utility model can be fixed by expanding and squeezing the airbag, which is easy to install and has good anti-seismic effect.

[0008] (2) The wing plate in the utility model can be fully contacted and embedded with the concrete structure and the airbag, thereby increasing the flow path of the water flow and achieving a waterproof effect.

[0009] (3) The airbags in the utility model are distributed in a ring shape on the inner wall of the outer tube, and expand after being inflated to fit the inner tube without any dead angle.

[0010] (4) The device of the utility model can be disassembled and used at any time, and the inflation effect is controllable. After use, the inner tube can be completely recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of a temporary inflatable large-caliber anti-seismic stable casing of the utility model;

[0012] Figure 2 This is a left view of the outer tube of a temporary inflatable large-diameter anti-seismic stable casing of the utility model;

[0013] Figure 3 This is a top view of the outer tube of a temporary inflatable large-caliber anti-seismic stable casing of the utility model;

[0014] Figure 4 This is a left view of a temporary inflatable large-caliber anti-seismic stable casing outer tube after the airbag is installed;

[0015] Figure 5 This is a front view of the inner tube of a temporary inflatable large-diameter anti-seismic and stable casing of the utility model;

[0016] Figure 6 This is a left view of the inner tube of a temporary inflatable large-diameter anti-seismic stable casing of the utility model;

[0017] Figure 7 The utility model is a top view of an inner tube of a temporary inflatable large-caliber anti-seismic stable casing. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] As shown in the attached drawings, a temporary inflatable large-caliber anti-seismic stable casing of the utility model comprises an inner tube 7, and an inner tube wing plate 6 is formed on the outer wall of the inner tube. Preferably, the inner tube wing plate comprises a semi-circular lower inner tube wing plate located at the lower part of the middle position in the axial direction of the inner tube and a semi-circular upper inner tube wing plate located at the upper parts of the left and right sides of the middle position in the axial direction of the inner tube. When the airbag is expanded, the relative position of the inner tube and the outer tube is fixed under the pressure of the airbag, and the wing plate is embedded in the airbag, which can avoid displacement of the inner tube.

[0020] An outer tube 5 is arranged outside the inner tube, the inner tube wing plate is supported on the inner wall of the outer tube, an outer tube wing plate 2 is formed in the middle of the outer wall of the outer tube, the end faces of the left and right ends of the outer tube extend inward to form arc-shaped outer tube baffles 4, an inflation hole 1 is provided on the arc-shaped outer tube baffle, and a check valve is provided in the inflation hole. Preferably, there are two arc-shaped outer tube baffles at the left and right ends of the outer tube, and the two arc-shaped outer tube baffles are respectively located at the upper and lower parts of the left and right ends of the outer tube, and an inflation hole is provided on each arc-shaped outer tube baffle. In this way, the inflation point can be placed externally, which is convenient for operation and maintenance.

[0021] A circle of airbag 3 with certain wear resistance and puncture resistance is arranged between the outer tube 5 and the inner tube 7, and the inflation port communicated with the airbag is communicated with the inflation hole.

[0022] The installation and use methods of this structure are as follows:

[0023] When installing the sleeve, the outer tube 5 is buried in the reinforced concrete structure. When installing the inner tube 7, first evacuate the gas in the air bag 1 to shrink the air bag 1 and fit tightly with the inner wall of the inner tube, and then send the inner tube 7 into the outer tube 5. After the inner tube 7 is sent to the designated position, it is inflated simultaneously by the front and rear two inflation holes 1 using an inflation device. The inflation holes are provided with a check valve. After the inner tube is firmly fixed by the air bag, the inflation is stopped and the inflation hole 1 is sealed to complete the installation. The outer tube wing plate is embedded in the concrete structure to form a waterproof structure similar to a water-stop steel plate. The inner tube wing plate is embedded in the air bag after the air bag expands. The pressure of the air bag on the wing plate forces the inner tube to be fixed. No other fillers are required between the inner tube 5 and the outer tube 7.

[0024] The above-mentioned specific implementations are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many modifications without departing from the purpose of the present invention and the scope of protection of the claims, all of which are protected by the present invention.

Claims

1. A temporary inflatable large-caliber seismic stabilization casing, comprising an inner tube, an outer tube is disposed on the inner tube, and is characterized in that: An inner tube wing plate is arranged on the outer wall of the inner tube; the inner tube wing plate is supported on the inner wall of the outer tube, and an outer tube wing plate is arranged in a full circle in the middle of the outer wall of the outer tube. The end faces at the left and right ends of the outer tube extend inwards to form an arc-shaped outer tube baffle plate, an inflation hole is opened on the arc-shaped outer tube baffle plate, a check valve is arranged in the inflation hole, a circle of air bags is arranged between the outer tube and the inner tube, and the inflation port connected to the air bag is connected to the inflation hole.

2. The temporary inflatable large-diameter seismic stabilizing casing according to claim 1 is characterized in that: The inner tube wing plate comprises a semi-circular lower inner tube wing plate located at the lower part of the middle position in the axial direction of the inner tube and a semi-circular upper inner tube wing plate located at the upper parts of the left and right sides of the middle position in the axial direction of the inner tube.

3. The temporary inflatable large-diameter seismic stabilizing casing according to claim 1 or 2, characterized in that: There are two arc-shaped outer tube baffles at the left and right ends of the outer tube, which are respectively located at the upper and lower parts of the left and right ends of the outer tube, and each arc-shaped outer tube baffle has an inflation hole.

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