Waterproof device for shield tunneling machine entering hole

Abstract

The utility model relates to the technical field of shield tunneling machine construction waterproofing, and discloses a shield tunneling machine tunnel entering waterproof device which comprises a steel strand, a steel cable tensioning device and a window cloth rubber plate installed on a door opening wall, an annular plate is installed on the surface of the window cloth rubber plate, and a plurality of pressing plates are arranged on the surface of the annular plate. The multiple pressing plates are evenly distributed with the central axis of the circular ring plate as the center, guide sliding rails are arranged between the pressing plates and the circular ring plate, and the multiple pressing plates are each provided with a movable plate. According to the shield tunneling machine tunnel entering waterproof device, the steel strand, the steel cable tensioning device, the pressing plate and the guide sliding rail are arranged, the steel cable tensioning device tensions the steel strand, the steel strand generates radial force to be applied to the pressing plate, the pressing plate is made to move, the gap between the pressing plate and a shield segment is adjusted, and then a window cloth rubber plate can be tightly pressed on the shield segment; the tensioning tightness degree is adjusted according to requirements, the sealing effect between the window cloth rubber plate and the shield segment is ensured, the situation that the pressing piece is repeatedly disassembled to adjust the position of the pressing piece is avoided, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproofing for shield machine construction, in particular to a waterproofing device for entering a tunnel of a shield machine. Background Art

[0002] A shield machine is a tunnel boring machine that uses the shield method. Shield machines are widely used in underground engineering operations. The shield construction method is that the tunnel boring machine constructs (lays) the "shield" (referring to the supporting segments) of the tunnel while excavating. It is different from the open construction method. Waterproofing of the shield machine entering the hole has always been a focus issue.

[0003] Pressure plates and rubber curtains are commonly used as waterproof sealing measures in the shield machine's starting and receiving construction when a shield machine enters a tunnel. In actual engineering construction, since it is difficult to accurately control the shield machine's entry posture, it is necessary to manually disassemble, install and adjust the position of the pressure plates to ensure the water-stopping effect, which consumes manpower and reduces construction efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a shield machine tunnel entry waterproof device, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical scheme: a shield machine tunnel waterproofing device, comprising: a steel strand, a steel cable tensioner and a window cloth rubber plate installed on a door hole wall, a circular ring plate installed on the surface of the window cloth rubber plate, a plurality of pressure plates are arranged on the surface of the circular ring plate, the plurality of pressure plates are evenly distributed with the central axis of the circular ring plate as the center, and a guide slide rail is arranged between the pressure plate and the circular ring plate, a plurality of pressure plates are arranged on each of the plurality of pressure plates, the plurality of the movable plates are connected to the surface of the steel strand, the steel cable tensioner is connected to the surface of the circular ring plate, and the steel strand is installed on the steel cable tensioner.

[0006] Preferably, a movable hole is opened on the surface of the movable plate, and the inner wall of the movable hole is connected to the surface of the steel strand.

[0007] Preferably, the diameter of the movable hole is twice the diameter of the steel strand 2 .

[0008] Preferably, the movable plate and the pressing plate are both made of steel plates, and the movable plate is welded to the surface of the pressing plate.

[0009] Preferably, one end of the steel strand is fixedly mounted on the steel cable tensioner, and the other end of the steel strand passes through a tensioning hole in the steel cable tensioner.

[0010] Preferably, the fixed guide rail seat of the guide rail is installed on the circular ring plate, and the pressure plate is installed on the sliding part of the guide rail.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The shield machine tunnel waterproofing device is equipped with steel strands, cable tensioners, pressure plates and guide rails. The cable tensioners tension the steel strands, so that the steel strands generate radial force applied to the pressure plates, allowing the pressure plates to move and adjust the gap between the pressure plates and the shield segments, so that the window cloth rubber plates can be pressed tightly against the shield segments. The tensioning tightness is adjusted according to needs to ensure the sealing effect between the window cloth rubber plates and the shield segments, avoid repeated disassembly of the pressure plates, adjust the position of the pressure plates, and improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the side section structure of the guide rail and the movable plate of the utility model.

[0015] In the figure: 1. Steel strand; 2. Steel cable tensioner; 3. Window cloth rubber sheet; 4. Circular ring plate; 5. Pressing plate; 6. Guide rail; 7. Moving plate; 8. Movable hole; 9. Door opening wall. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-2 A shield machine tunnel waterproofing device comprises: a steel strand 1, a steel cable tensioner 2 and a window cloth rubber plate 3 installed on a door hole wall 9, a circular plate 4 is installed on the surface of the window cloth rubber plate 3, a plurality of pressure plates 5 are arranged on the surface of the circular plate 4, the plurality of pressure plates 5 are evenly distributed around the central axis of the circular plate 4, and a guide rail 6 is arranged between the pressure plate 5 and the circular plate 4, a fixed guide rail seat of the guide rail 6 is installed on the circular plate 4, the pressure plate 5 is installed on the sliding part of the guide rail 6, the guide rail 6 guides the pressure plate 5 so that the pressure plate 5 slides along the center direction of the circle, a plurality of pressure plates 5 are arranged with movable plates 7, the plurality of movable plates 7 are connected to the surface of the steel strand 1, the steel cable tensioner 2 is connected to the surface of the circular plate 4, and the steel strand 1 is installed on the steel cable tensioner 2.

[0018] A movable hole 8 is opened on the surface of the movable plate 7, and the inner wall of the movable hole 8 is connected to the surface of the steel strand 1. The diameter of the movable hole 8 is twice the diameter of the steel strand 12. The movable plate 7 and the pressure plate 5 are both made of steel plates, and the movable plate 7 is welded to the surface of the pressure plate 5. The steel strand 1 passes through the holes of the movable plate 7 to connect all the pressure plates 5 in series.

[0019] One end of the steel strand 1 is fixedly mounted on the steel cable tensioner 2 , and the other end of the steel strand 1 passes through a tensioning hole in the steel cable tensioner 2 .

[0020] The circular plate 4 and the window cloth rubber plate 3 are fixed to the door opening wall 9 by bolts, and the guide slide rail 6 is fixed on the outer side of the circular plate 4. The other side of the guide slide rail 6 is connected to the pressure plate 5. A movable plate 7 is welded on the upper part of the pressure plate 5. The steel strand 1 passes through the movable hole 8. The steel strand 1 is tensioned by the steel cable tensioner 2, so that the steel strand 1 generates a radial force applied to the pressure plate 5, so that the pressure plate 5 can be moved to adjust the gap with the shield segment, so that the window cloth rubber plate 3 can be pressed against the shield segment. The tensioning tightness is adjusted according to the needs to ensure the sealing effect between the window cloth rubber plate 3 and the shield segment, avoid repeated disassembly of the pressure plate, adjust the position of the pressure plate, and improve the construction efficiency.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shield machine tunneling waterproof device, characterized in that: include: A steel strand (1), a steel cable tensioner (2) and a window cloth rubber plate (3) installed on a door opening wall (9), wherein a circular plate (4) is installed on the surface of the window cloth rubber plate (3), a plurality of pressure plates (5) are arranged on the surface of the circular plate (4), the plurality of pressure plates (5) are evenly distributed around the central axis of the circular plate (4), and a guide rail (6) is arranged between the pressure plate (5) and the circular plate (4), a movable plate (7) is arranged on the plurality of pressure plates (5), and the plurality of movable plates (7) are connected to the surface of the steel strand (1), the steel cable tensioner (2) is connected to the surface of the circular plate (4), and the steel strand (1) is installed on the steel cable tensioner (2).

2. A shield machine tunneling waterproof device according to claim 1, characterized in that: A movable hole (8) is provided on the surface of the movable plate (7), and the inner wall of the movable hole (8) is connected to the surface of the steel strand (1).

3. A shield machine tunneling waterproof device according to claim 2, characterized in that: The diameter of the movable hole (8) is twice the diameter of the steel strand (1) 2.

4. A shield machine tunneling waterproof device according to claim 3, characterized in that: The movable plate (7) and the pressing plate (5) are both made of steel plates, and the movable plate (7) is welded to the surface of the pressing plate (5).

5. A shield machine tunneling waterproof device according to claim 1, characterized in that: One end of the steel strand (1) is fixedly mounted on the steel cable tensioner (2), and the other end of the steel strand (1) passes through a tensioning hole in the steel cable tensioner (2).

6. A shield machine tunneling waterproof device according to claim 1, characterized in that: The fixed guide rail seat of the guide rail (6) is installed on the circular ring plate (4), and the pressure plate (5) is installed on the sliding part of the guide rail (6).

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