A shield tunnel segment sealing gasket corner anti-accumulation structure

Abstract

This utility model relates to the field of shield tunnel technology, specifically to a corner anti-accumulation structure for shield tunnel segment sealing gaskets. It includes two sealing gasket bodies and a fixing mechanism. The two sealing gasket bodies are arranged adjacent to each other. The fixing mechanism includes several fixing rods, two fixing plates, two rotating plates, several locking rods, and a locking assembly. The two fixing plates are fixedly connected to their respective sealing gasket bodies. One end of each fixing rod is fixedly connected to a fixing plate, and the other end of each fixing rod passes through its corresponding sealing gasket body. The two rotating plates are rotatably connected to their respective fixing plates. The several locking rods are fixedly connected to their respective rotating plates. Each locking rod has a locking hole on its surface, and the locking assembly is located inside the locking hole. This structure solves the problem of increased pressure and friction on the sealing gaskets during the sliding assembly of tunnel segments, leading to gasket corner accumulation.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel technology, and in particular to a shield segment sealing gasket corner anti-accumulation structure. Background Technology

[0002] Currently, waterproofing of shield tunnel segment joints in China mainly uses EPDM rubber, which stops water flow by compressing the sealing gasket and applying compressive stress. As shield tunneling projects develop towards greater burial depth, larger cross-section, and longer distance, the water pressure that tunnel joints bear is increasing, which places higher demands on the compressive stress of the sealing gasket. Waterproofing has become an important factor restricting the development of shield tunnels.

[0003] As the assembly stress of the gasket increases, the extrusion and friction forces borne by the gasket during the sliding assembly of the segments also increase, and the problems of gasket corner accumulation and stress concentration become more and more serious. Utility Model Content

[0004] The purpose of this utility model is to provide a corner anti-accumulation structure for shield tunnel segment sealing gaskets, which solves the problem of gasket corner accumulation caused by the increased extrusion and friction forces on the sealing gaskets during the sliding assembly of tunnel segments.

[0005] To achieve the above objectives, this utility model provides a corner anti-accumulation structure for shield tunnel segment sealing gaskets, comprising two sealing gasket bodies and a fixing mechanism. The two sealing gasket bodies are arranged adjacent to each other. The fixing mechanism includes several fixing rods, two fixing plates, two rotating plates, several locking rods, and a locking assembly. The two fixing plates are respectively fixedly connected to the corresponding sealing gasket bodies and are respectively disposed on one side of the corresponding sealing gasket bodies. One end of the several fixing rods is fixedly connected to the fixing plate, and the other end of the several fixing rods passes through the corresponding sealing gasket bodies. The two rotating plates are respectively rotatably connected to the corresponding fixing plates and are disposed on one side of the corresponding fixing plates. The several locking rods are respectively fixedly connected to the corresponding rotating plates and are alternately disposed between the two rotating plates. Each of the several locking rods has a locking hole on its surface, and the locking assembly is disposed inside the locking hole.

[0006] The locking assembly includes several limiting strips, a retaining shell, and a limiting plate. The limiting strips are fixedly connected to the corresponding retaining rods and are respectively disposed inside the corresponding retaining holes. The retaining shell is slidably connected to the limiting strips and is located inside the retaining holes. The limiting plate is bolted to the retaining shell.

[0007] The shield tunnel segment sealing gasket corner anti-accumulation structure also includes two waterproof sealing silicone greases, which are respectively fixedly connected to the corresponding sealing gasket body and respectively disposed on one side of the corresponding sealing gasket body.

[0008] The shield tunnel segment sealing gasket corner anti-accumulation structure also includes four support legs. The four support legs are respectively fixedly connected to the corresponding sealing gasket body and are set on both sides of the corresponding sealing gasket body. The surface of the sealing gasket body is provided with several slots.

[0009] The two sealing gasket bodies have several cavities inside.

[0010] This utility model discloses a corner anti-accumulation structure for shield tunnel segment sealing gaskets. Two fixing plates are respectively fixedly connected to the corresponding sealing gasket bodies and are respectively disposed on one side of the corresponding sealing gasket bodies. One end of several fixing rods is fixedly connected to the fixing plates, and the other end of the fixing rods passes through the corresponding sealing gasket bodies. Two rotating plates are respectively rotatably connected to the corresponding fixing plates and are disposed on one side of the corresponding fixing plates. Several locking rods are respectively fixedly connected to the corresponding rotating plates and are alternately disposed between the two rotating plates. Each of the locking rods has a locking hole on its surface, and a locking assembly is disposed inside the locking hole. During installation, the fixing rods are locked inside the sealing gasket bodies, and the fixing plates are fixed to one side of the sealing gasket bodies. After the two sealing gasket bodies are placed, the rotating plates are rotated, causing the locking rods to alternately cover the corners of the sealing gasket bodies. The locking assembly then fixes the locking rods, improving the stability of the two sealing gasket bodies. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the anti-accumulation structure of the corner sealing gasket for tunnel segment of this utility model.

[0013] Figure 2 This is a front view of the anti-accumulation structure at the corner of the shield tunnel segment sealing gasket of this utility model.

[0014] Figure 3 This is a side view of the anti-accumulation structure at the corner of the shield tunnel segment sealing gasket of this utility model.

[0015] Figure 4 This is a structural schematic diagram of the fixing mechanism of this utility model.

[0016] 1-Sealing gasket body, 2-Waterproof sealing silicone grease, 3-Support foot, 4-Fixing rod, 5-Fixing plate, 6-Rotating plate, 7-Clamping rod, 8-Limiting strip, 9-Clamping case, 10-Limiting plate, 11-Clamping hole, 12-Clamping groove, 13-Cavity. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the anti-accumulation structure at the corner of the shield tunnel segment sealing gasket of this utility model. Figure 2 This is a front view of the anti-accumulation structure at the corner of the shield tunnel segment sealing gasket of this utility model. Figure 3 This is a side view of the anti-accumulation structure at the corner of the shield tunnel segment sealing gasket of this utility model. Figure 4 This is a structural schematic diagram of the fixing mechanism of this utility model.

[0019] This utility model provides a corner anti-accumulation structure for shield tunnel segment sealing gaskets, including two sealing gasket bodies 1, two waterproof sealing silicone greases 2, four support legs 3, and a fixing mechanism. The fixing mechanism includes several fixing rods 4, two fixing plates 5, two rotating plates 6, several locking rods 7, and a locking assembly. The locking assembly includes several limiting strips 8, locking shells 9, and limiting plates 10. The aforementioned solution solves the problem of increased extrusion and friction on the sealing gaskets during the sliding assembly of tunnel segments, leading to gasket corner accumulation.

[0020] In this specific embodiment, two sealing gasket bodies 1 are arranged adjacent to each other. Two fixing plates 5 are respectively fixedly connected to the corresponding sealing gasket bodies 1 and are respectively disposed on one side of the corresponding sealing gasket bodies 1. One end of several fixing rods 4 is fixedly connected to the fixing plate 5, and the other end of several fixing rods 4 passes through the corresponding sealing gasket bodies 1. Two rotating plates 6 are respectively rotatably connected to the corresponding fixing plate 5 and are disposed on one side of the corresponding fixing plate 5. Several locking rods 7 are respectively fixedly connected to the corresponding rotating plates 6 and are alternately disposed between the two rotating plates 6. Each of the several locking rods 7 has a locking hole 11 on its surface. The locking assembly is disposed inside the locking hole 11. During installation, the fixing rods 4 are locked inside the sealing gasket bodies 1, and the fixing plate 5 is fixed to one side of the sealing gasket bodies 1. After the two sealing gasket bodies 1 are placed, the rotating plate 6 is rotated so that the several locking rods 7 alternately cover the corners of the sealing gasket bodies 1. The locking assembly fixes the several locking rods 7, thereby improving the stability of the two sealing gasket bodies 1.

[0021] In this configuration, several limiting strips 8 are fixedly connected to corresponding locking rods 7 and are respectively disposed inside corresponding locking holes 11. The locking shell 9 is slidably connected to several limiting strips 8 and is located inside the locking holes 11. The limiting plate 10 is bolted to the locking shell 9, fixing the base plate inside the groove. The locking rod 7 covers the outside of the sealing gasket body 1, passes through the locking hole 11, and the locking shell 9 is fixed to the limiting plate 10 by bolts, thereby improving the fixing effect of the sealing plate body.

[0022] Secondly, the two waterproof sealing silicone greases 2 are respectively fixedly connected to the corresponding sealing gasket body 1 and respectively placed on one side of the corresponding sealing gasket body 1. The waterproof sealing silicone grease 2 acts as a lubricant, greatly reducing the friction between the sealing gasket bodies 1, making the sealing gasket bodies 1 squeezed evenly and preventing accumulation at corners.

[0023] Secondly, the four support legs 3 are respectively fixedly connected to the corresponding sealing gasket body 1 and are set on both sides of the corresponding sealing gasket body 1. The surface of the sealing gasket body 1 is provided with a number of slots 12. The support legs 3 have the function of promoting the rubber gasket body to quickly recover its deformation after being squeezed in order to achieve rapid waterproofing.

[0024] In addition, the interior of the two sealing gasket bodies 1 is provided with several cavities 13, which can effectively support the sealing gasket bodies 1 and also have a certain impact resistance.

[0025] When using this utility model, during installation, the fixing rod 4 is inserted inside the sealing gasket body 1, and the fixing plate 5 is fixed to one side of the sealing gasket body 1. After the two sealing gasket bodies 1 are placed, the rotating plate 6 is rotated so that several locking rods 7 alternately cover the corners of the sealing gasket body 1. The locking shell 9 passes through the locking hole 11, and the locking shell 9 is fixed to the limiting plate 10 by bolts, which improves the fixing effect of the sealing plate body and improves the stability of the two sealing gasket bodies 1. The support leg 3 promotes the rapid recovery of the rubber gasket body after being squeezed to achieve rapid waterproofing.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A corner anti-accumulation structure for shield tunnel segment sealing gaskets, comprising two sealing gasket bodies arranged adjacent to each other, characterized in that, It also includes a fixing mechanism, which comprises several fixing rods, two fixing plates, two rotating plates, several locking rods, and a locking assembly. The two fixing plates are respectively fixedly connected to the corresponding sealing gasket bodies and are respectively disposed on one side of the corresponding sealing gasket bodies. One end of the several fixing rods is fixedly connected to the fixing plate, and the other end of the several fixing rods passes through the corresponding sealing gasket bodies. The two rotating plates are respectively rotatably connected to the corresponding fixing plates and are disposed on one side of the corresponding fixing plates. The several locking rods are respectively fixedly connected to the corresponding rotating plates and are alternately disposed between the two rotating plates. Each of the several locking rods has a locking hole on its surface, and the locking assembly is disposed inside the locking hole.

2. The anti-accumulation structure for shield tunnel segment sealing gaskets at corners as described in claim 1, characterized in that, The locking assembly includes several limiting strips, a retaining shell, and a limiting plate. The limiting strips are fixedly connected to the corresponding retaining rods and are respectively disposed inside the corresponding retaining holes. The retaining shell is slidably connected to the limiting strips and is located inside the retaining holes. The limiting plate is bolted to the retaining shell.

3. The anti-accumulation structure for shield tunnel segment sealing gaskets at corners as described in claim 2, characterized in that, The anti-accumulation structure at the corner of the shield tunnel segment sealing gasket also includes two waterproof sealing silicone greases. The two waterproof sealing silicone greases are respectively fixedly connected to the corresponding sealing gasket body and are respectively disposed on one side of the corresponding sealing gasket body.

4. The anti-accumulation structure for shield tunnel segment sealing gaskets at corners as described in claim 3, characterized in that, The shield tunnel segment sealing gasket corner anti-accumulation structure also includes four legs, which are fixedly connected to the corresponding sealing gasket body and are set on both sides of the corresponding sealing gasket body. The surface of the sealing gasket body is provided with several slots.

5. The anti-accumulation structure for shield tunnel segment sealing gaskets at corners as described in claim 4, characterized in that, The two sealing gasket bodies have several cavities inside.

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