Pipe piece connecting device of shield tunneling machine

Abstract

The utility model discloses a shield tunneling machine duct piece connecting device which comprises a duct piece body used for being installed on the inner wall of a tunnel, two inserting rods are fixedly connected to one side of the duct piece body in an inserted mode, the other end of each inserting rod is fixedly connected with a threaded rod, and the other end of each threaded rod is sleeved with a fastening nut in a threaded mode. Two first connecting holes are formed between the two sides of each duct piece body in a penetrating mode, an inserting rod of one duct piece body is connected with the first connecting hole of the other duct piece body in an inserted mode, two side grooves are formed in one side of each duct piece body, fastening nuts are connected with the side grooves in an inserted mode, a connecting concave strip is connected to one side of each duct piece body in an embedded mode, and a connecting convex strip is connected to the other side of each duct piece body in an embedded mode. According to the pipe piece, the inserting rod of one pipe piece body is connected with the first connecting hole of the other pipe piece body in an inserted mode, the two pipe piece bodies are connected and fixed through the fastening nut, and therefore the pipe piece bodies are spliced in the horizontal direction, and the connecting stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machines, in particular to a shield machine segment connecting device. Background Art

[0002] The pipe segment is the main assembly component of the shield machine construction. As the innermost barrier of the tunnel, it plays the role of resisting soil pressure, groundwater pressure and some special loads. The pipe segments are usually connected through connecting devices.

[0003] Among them, after searching, the Chinese patent with the announcement number CN218953319U discloses a shield machine segment connection device. The above patent realizes the function of front and rear connection of the segment with a structural scheme of connecting the limit holes and the positioning reinforcement ribs. However, since the positioning reinforcement ribs and the connecting limit holes are only connected by plugging, the connection is not fixed. Therefore, in order to advance the technology of the industry, better realize the function of segment connection, and improve the competitiveness of core technology, this application proposes a new implementation scheme of the segment connection device structure which is different from the prior art. Utility Model Content

[0004] The utility model aims to solve the problem that the connection between the positioning reinforcement rib and the connection limit hole in the existing connection device is only plug-in, resulting in an unstable connection, and proposes a shield machine segment connection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shield machine segment connection device includes a segment body for installation on the inner wall of a tunnel, two insertion rods are fixedly inserted on one side of the segment body, a threaded rod is fixedly connected to the other end of the insertion rod, a fastening nut is threadedly sleeved on the other end of the threaded rod, two first connection holes are penetrated between the two sides of the segment body, the insertion rod of the segment body is inserted into the first connection holes of the other segment body, two side grooves are provided on one side of the segment body, the fastening nut is inserted into the side grooves, a connecting concave strip is embedded on one side of the segment body, a connecting convex strip is embedded on the other side of the segment body, and the connecting convex strip of one segment body is inserted into the connecting concave strip of the other segment body.

[0007] Furthermore, both sides of the connecting concave strip and both sides of the connecting convex strip are fixedly connected with fixing strips, and the fixing strips are clamped with the pipe segment body.

[0008] Furthermore, an inner plate is fixedly connected to the inner side of the tube segment body.

[0009] Furthermore, a groove is provided at one end of the inner plate, and a convex plate is provided at the other end of the inner plate.

[0010] Furthermore, the convex plate of the tube segment body is plugged into the groove of another tube segment body.

[0011] Furthermore, a plurality of second connection holes are provided on one side of the inner plate.

[0012] The beneficial effects of the utility model are:

[0013] 1. The segment bodies are assembled horizontally by inserting the insertion rod of one segment body into the first connection hole of another segment body and then fixing the connection between the two segment bodies by tightening nuts, thereby improving the stability of the connection.

[0014] 2. The segment bodies are assembled longitudinally by plugging the connecting convex strips of one segment body into the connecting concave strips of another segment body, which is convenient and quick.

[0015] 3. By inserting the convex plate of one segment body into the groove of another segment body, the two segment bodies are tightly fitted and assembled, thereby avoiding gaps between the two segment bodies and improving the connection effect between the two segment bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a left-side three-dimensional structural schematic diagram of a shield machine segment connection device proposed by the utility model;

[0017] Figure 2 It is a right-side three-dimensional structural schematic diagram of a shield machine segment connection device proposed by the utility model;

[0018] Figure 3 This is a schematic cross-sectional structure diagram of a shield machine segment connection device proposed in the utility model;

[0019] Figure 4 The utility model provides a schematic cross-sectional structural diagram of the segment body connection state of a shield machine segment connection device.

[0020] In the figure: 1. segment body; 2. plug rod; 3. threaded rod; 4. fastening nut; 5. first connecting hole; 6. side groove; 7. connecting concave strip; 8. connecting convex strip; 9. fixing strip; 10. inner plate; 11. groove; 12. convex plate; 13. second connecting hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 4A shield machine segment connection device comprises a segment body 1 for installation on the inner wall of a tunnel, two plug rods 2 are fixedly inserted on one side of the segment body 1, a threaded rod 3 is welded on the other end of the plug rod 2, a fastening nut 4 is threadedly sleeved on the other end of the threaded rod 3, two first connection holes 5 are penetrated between the two sides of the segment body 1, the plug rod 2 of the segment body 1 is plugged into the first connection hole 5 of the other segment body 1, the plug rod 2 of one segment body 1 is plugged into the first connection hole 5 of the other segment body 1, and then the fastening nut is used to tighten the plug rod 2 of the segment body 1. 4 is used to fix the connection between the two segment bodies 1, so that the segment bodies 1 are assembled horizontally. Two side grooves 6 are provided on one side of the segment body 1, and the fastening nut 4 is inserted into the side groove 6. A connecting groove 7 is embedded on one side of the segment body 1, and a connecting convex strip 8 is embedded on the other side of the segment body 1. The connecting convex strip 8 of one segment body 1 is inserted into the connecting groove 7 of the other segment body 1. The connecting convex strip 8 of one segment body 1 is inserted into the connecting groove 7 of the other segment body 1, so that the segment bodies 1 are assembled longitudinally.

[0023] Fixing strips 9 are welded on both sides of the connecting groove strip 7 and both sides of the connecting convex strip 8, thereby improving the connection effect between the connecting groove strip 7 and the connecting convex strip 8 and the tube segment body 1. The fixing strip 9 is clamped with the tube segment body 1, and an inner plate 10 is fixed to the inner side of the tube segment body 1 by bolts. A groove 11 is provided at one end of the inner plate 10, and a convex plate 12 is provided at the other end of the inner plate 10. The convex plate 12 of the tube segment body 1 is plugged into the groove 11 of another tube segment body 1, and the convex plate 12 of one tube segment body 1 is plugged into the groove 11 of another tube segment body 1, so that the two tube segment bodies 1 are tightly fitted and assembled, thereby avoiding gaps between the two tube segment bodies 1 and improving the connection effect between the two tube segment bodies 1. A plurality of second connecting holes 13 are provided on one side of the inner plate 10, and bolts are inserted into the second connecting holes 13 to fix the two inner plates 10.

[0024] The working principle of this embodiment is as follows: when in use, the insertion rod 2 of one segment body 1 is plugged into the first connection hole 5 of the other segment body 1, and the connection between the two segment bodies 1 is fixed by the fastening nut 4, so that the segment bodies 1 are assembled horizontally, and the fastening nut 4 is plugged into the side groove 6 on the left side, and then, the connecting convex strip 8 of one segment body 1 is plugged into the connecting concave strip 7 of the other segment body 1, so that the segment bodies 1 are assembled longitudinally, and the convex plate 12 of one segment body 1 is plugged into the concave groove 11 of the other segment body 1, so that the two segment bodies 1 are tightly fitted and assembled, thereby avoiding the occurrence of gaps between the two segment bodies 1.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shield machine segment connection device, comprising a segment body (1) for installation on the inner wall of a tunnel, characterized in that: Two insertion rods (2) are fixedly inserted on one side of the segment body (1), and a threaded rod (3) is fixedly connected to the other end of the insertion rod (2). A fastening nut (4) is threadedly sleeved on the other end of the threaded rod (3). Two first connection holes (5) are provided between the two sides of the segment body (1). The insertion rod (2) of the segment body (1) is inserted into the first connection hole (5) of the other segment body (1). Two side grooves (6) are provided on one side of the segment body (1), and the fastening nut (4) is inserted into the side groove (6). A connecting groove (7) is embedded on one side of the segment body (1), and a connecting convex strip (8) is embedded on the other side of the segment body (1). The connecting convex strip (8) of one segment body (1) is inserted into the connecting groove (7) of the other segment body (1).

2. A shield machine segment connection device according to claim 1, characterized in that: Both sides of the connecting concave strip (7) and both sides of the connecting convex strip (8) are fixedly connected with fixing strips (9), and the fixing strips (9) are clamped with the pipe segment body (1).

3. A shield machine segment connection device according to claim 1, characterized in that: An inner plate (10) is fixedly connected to the inner side of the tube segment body (1).

4. A shield machine segment connection device according to claim 3, characterized in that: One end of the inner plate (10) is provided with a groove (11), and the other end of the inner plate (10) is provided with a convex plate (12).

5. A shield machine segment connection device according to claim 4, characterized in that: The convex plate (12) of the tube segment body (1) is plugged into the concave groove (11) of another tube segment body (1).

6. A shield machine segment connection device according to claim 3, characterized in that: A plurality of second connection holes (13) are provided on one side of the inner plate (10).

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