8-shaped duct piece connecting device

Abstract

The utility model discloses an 8-shaped duct piece connecting device which comprises a male connecting seat, a female connecting seat and an 8-shaped connecting rod, the male connecting seat and the female connecting seat are assembled on adjacent duct pieces to be spliced respectively and are arranged close to each other on the adjacent duct pieces, the 8-shaped connecting rod is assembled on the female connecting seat in advance, and the 8-shaped connecting rod is assembled on the female connecting seat in advance. And the 8-shaped connecting rod is connected and fastened with the male connecting seat under the action of an external force driving pipe piece. The male connecting base, the female connecting base and the 8-shaped connecting rod are assembled with the pipe pieces into a whole in advance, when the pipe pieces are connected into a ring, the two pipe pieces can be connected through pushing of an oil cylinder of the shield tunneling machine, pre-lap joint is not needed, manual alignment is not needed, and people do not need to be close to a pipe piece construction dangerous area. The male connecting seat and the female connecting seat can be connected to a steel pipe piece or embedded in a concrete pipe piece through bolts, and parts are easy to manufacture and convenient to install. The connecting device can be used for connecting other components except the duct piece and is wide in applicability.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of shield construction, in particular to a tunnel lining steel segment connecting structure. BACKGROUND

[0002] At present, in the tunneling process, a plurality of segments are spliced into a segment ring, and the segment ring is connected to form the whole tunnel lining. Since the tunnel is usually excavated by a shield machine, the segments are usually connected by segment bolts or quick insertion structures to synchronize the tunneling work of the shield machine.

[0003] The bolt connection is usually reserved with a bolt connection hole when the segment is prefabricated, and the bolt is used for fastening after the segment is spliced, so as to complete the connection operation between the adjacent segments. The segment bolt connection has high requirements for the manufacturing precision of the bolt and the segment, the bolt hole and the nut tightening need to be operated manually, the hole of the adjacent segments is difficult to be quickly aligned, and the segment needs to be continuously adjusted, so that the construction speed is slow, and the manual nut tightening also has safety hazards. The quick insertion structure has the characteristics of convenient construction and high efficiency, but in the process of segment connection, the quick insertion structure has high requirements for the assembly positioning precision, has no segment assembly guide function, so that the segment cannot be quickly aligned, and it is also difficult to realize the quick splicing operation. SUMMARY

[0004] In view of the above problems, the application aims to provide an 8-shaped segment connecting device to solve the problems in the prior art.

[0005] In order to achieve the above purpose, the technical scheme adopted by the application is as follows: an 8-shaped segment connecting device, comprising a male connecting seat, a female connecting seat and an 8-shaped connecting rod, the male connecting seat and the female connecting seat are respectively assembled on adjacent segments to be spliced, and the male connecting seat and the female connecting seat are arranged close to each other on the adjacent segments, one end of the 8-shaped connecting rod is pre-assembled on the female connecting seat, and when the adjacent segments are attached under the driving of external force, the other end of the 8-shaped connecting rod is inserted into the male connecting seat to splice the adjacent segments together.

[0006] Preferably, the male connecting seat and the female connecting seat are connected with the segment through the first threaded hole and the bolt arranged on the side wall thereof.

[0007] Preferably, the 8-shaped connecting rod is composed of a male side at one end, a female side at the other end and a connecting rod connecting the male side and the female side into an integral structure, and the male side and the male connecting seat and the female side and the female connecting seat are all connected in the form of rod and hole insertion.

[0008] Preferably, the female connecting seat is pre-connected with the female side through the second threaded hole and the bolt axially arranged in the inner cavity thereof.

[0009] Preferably, the rod, hole and embedded fitting connection are all conical fitting structures.

[0010] The beneficial effects of the present application are:

[0011] (1) The male connector, female connector and 8-shaped connecting rod are assembled into an integral part in advance with the pipe segments, and when the pipe segments are connected into a ring, the two pipe segments can be connected by using the shield machine oil cylinder to push, without the need for pre-splicing, without the need for manual alignment, and without the need for personnel to approach the dangerous area of pipe segment construction.

[0012] (2) The 8-shaped connecting rod and the male and female connectors have the same taper, which plays a guiding and correcting role, and in the case of a certain amount of misalignment between the two pipe segments, the 8-shaped connecting rod can still be quickly inserted into the connector to achieve the connection of the two pipe segments.

[0013] (3) The connecting device is placed at the axial ends of the pipe segments, and the stress is uniform, so the maximum torque can be carried.

[0014] (4) The male and female connectors can be bolted to the steel pipe segments or embedded in the concrete pipe segments, and the parts are simple to manufacture and easy to install.

[0015] (5) The connecting device can be used for the connection of other components in addition to pipe segments, and has wide applicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an end side view of the male connector of the present application.

[0017] Figure 2 It is a three-dimensional structure diagram of the male connector of the present application.

[0018] Figure 3 It is an end side view of the female connector of the present application.

[0019] Figure 4 It is a three-dimensional structure diagram of the female connector of the present application.

[0020] Figure 5 It is a three-dimensional structure diagram of the 8-shaped connecting rod of the present application.

[0021] Figure 6 It is a front view of the 8-shaped connecting rod of the present application.

[0022] Figure 7 It is a top view of the 8-shaped connecting rod of the present application.

[0023] Figure 8 It is a diagram showing the male and female connectors assembled at both ends of a single pipe segment, and the 8-shaped connecting rod assembled on the female connector of the present application.

[0024] Figure 9 It is a diagram showing the splicing process of adjacent pipe segments of the present application.

[0025] Figure 10 For the purpose of the present application Figure 8 Spliced side view structural diagram.

[0026] In the figure: 4-tube piece one; 5-tube piece two. DETAILED DESCRIPTION

[0027] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the present application are further described below in combination with the drawings and examples.

[0028] Referring to the drawings Figures 1-10 The 8-shaped tube piece connecting device shown in the figure includes a male connecting seat 1, a female connecting seat 2 and an 8-shaped connecting rod 3. As shown in the figure, Figures 1-3 The male connecting seat 1 and the female connecting seat 2 are preferably cylindrical structures, and the 8-shaped connecting rod 3 can be connected to the male connecting seat 1 and the female connecting seat 2 in sequence and connect and fix the two. Before splicing adjacent tube pieces, as shown in the figure, Figures 9-10 First, the male connecting seat 1 and the female connecting seat 2 are assembled on the adjacent tube pieces to be spliced, and the male connecting seat 1 and the female connecting seat 2 are arranged close to each other on the adjacent tube pieces, that is, as shown in the figure, Figure 8 The male connecting seat 1 and the female connecting seat 2 are arranged at the same side of the adjacent tube pieces.

[0029] In order to facilitate the connection of adjacent tube pieces through the 8-shaped connecting rod 3, as shown in the figure, Figure 8 One end of the 8-shaped connecting rod 3 is pre-assembled on the female connecting seat 2, that is, after the female connecting seat 2 is assembled on the tube piece, the 8-shaped connecting rod 3 is assembled on the female connecting seat 2. While the male connecting seat 1 is also assembled on the other tube piece, as shown in the figure, Figure 9 By driving the tube piece with the male connecting seat 1 to assemble the side edge length direction of the tube piece with the female connecting seat 2 and the 8-shaped connecting rod 3, the 8-shaped connecting rod 3 is pushed outward by an external force, so that the other end of the 8-shaped connecting rod 3 is aligned with the male connecting seat 1, thereby realizing the connection and fixation of adjacent tube pieces through the 8-shaped connecting rod 3, and the male connecting seat 1 and the female connecting seat 2.

[0030] In order to facilitate the assembly and fixation of the male connecting seat 1 and the female connecting seat 2 on the tube piece, as shown in the figure, Figure 1 , 3As shown, the male connector 1 and the female connector 2 are connected with the segment through the first threaded hole a1 provided on the sidewall and the bolt. The segment is usually a concrete prefabricated, so the assembly position of the male connector 1 and the female connector 2 is reserved by the formwork during the pouring process of the segment. After the male connector 1 and the female connector 2 are embedded in the assembly position reserved on the segment, the male connector 1 and the female connector 2 are assembled and fixed with the segment (end panel) through the connection of the bolt and the first threaded hole a1.

[0031] In order to facilitate the quick connection of the 8-shaped connecting rod 3 with the male connector 1 and the female connector 2, as shown in the figure, Figures 5-7 the 8-shaped connecting rod 3 is composed of a female side 32 at one end, a male side 31 at the other end, and a connecting rod 33 connecting the male side 31 and the female side 32 into an integrated structure. The male side 31 and the female side 32 are respectively embedded and matched with the male connector 1 and the female connector 2 through the rod-hole structure, which facilitates the insertion during the segment connection process under the thrust of the shield machine.

[0032] The present application is to reduce manual operation when the segments are connected, so the 8-shaped connecting rod 3 is assembled with the female connector 2 before the segment connection. During the segment splicing, only the male side 31 needs to be embedded into the male connector 1 to complete the connection of the segment, reducing the manual operation. Therefore, in order to facilitate the pre-assembly of the 8-shaped connecting rod 3 with the female connector 2, as shown in the figure, Figure 3 the female connector 2 is pre-connected with the female side 32 through the second threaded hole a2 provided axially in the inner cavity and the bolt. After the female side 32 is embedded into the female connector 2, the pre-assembly of the 8-shaped connecting rod 3 is realized by threading the connecting screw in the female side 32 and tightening it in the second threaded hole a2.

[0033] Due to the large size of the segment, it is usually transferred by hoisting or transfer support during splicing. It is inevitable that there will be position deviation during the splicing of adjacent segments. The accurate rod-hole matching makes it difficult for the male side 31 to accurately correspond with the male connector 1 during the segment advancing process. Therefore, in order to solve this problem, as shown in the figure, Figure 5 , 7 the male side 31 and the female side 32, and the male connector 1 and the female connector 2 (i.e. rod-hole matching structure) are all provided as a tapered embedded matching structure. By setting the taper structure, when the male side 31 is embedded into the male connector 1, a certain range of deviation between the two can be allowed, which facilitates the smooth embedding of the male side 31 during the advancing process and reduces the difficulty of alignment operation. At the same time, during the continuous embedding process, the taper structure plays a continuous guiding and correcting role for the male side 31 and the male connector 1, which facilitates the rapid splicing operation of the segment.

[0034] In order to further improve the fastening of the segment connection, as shown in the figure, Figures 8-9As shown, the male connector 1 and the female connector 2 are preferably arranged in opposite positions on the other side of the adjacent pipe piece, that is, the male connector 1 and the female connector 2 are arranged in sequence at the two side ends of a single pipe piece, and the female connector 2 and the male connector 1 are arranged in sequence at the two side ends of another pipe piece, so that the two ends of the pipe piece are connected and fixed by the 8-shaped connecting rod 3 in the process of pushing and splicing.

[0035] The basic principles, main features and advantages of the present application are shown and described above. There are various changes and improvements of the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. An 8-shaped segment connecting device, characterized in that, It comprises a male connector (1), a female connector (2) and an 8-shaped connecting rod (3), the male connector (1) and the female connector (2) are assembled on the adjacent segments to be spliced respectively, and the male connector (1) and the female connector (2) are arranged close to each other on the adjacent segments, one end of the 8-shaped connecting rod (3) is assembled on the female connector (2) in advance, and the other end of the 8-shaped connecting rod (3) is inserted into the male connector (1) when the adjacent segments are adhered under the driving of external force, so that the adjacent segments are spliced together.

2. An 8-shaped segment connector according to claim 1, characterized in that: The male connector (1) and the female connector (2) are connected with the segments through the first threaded holes (a1) arranged on the side walls and bolts.

3. An 8-shaped segment connector according to claim 2, wherein: The 8-shaped connecting rod (3) is composed of a male side (31) at one end, a female side (32) at the other end and a connecting rod (33) connecting the male side (31) and the female side (32) into an integral structure, and the male side (31) and the male connector (1) and the female side (32) and the female connector (2) are all connected in the way of rod and hole embedding.

4. An 8-shaped segment connector according to claim 3, wherein: The female connector (2) is connected with the female side (32) in advance through the second threaded holes (a2) axially arranged in the inner cavity and bolts.

5. An 8-shaped segment connector according to claim 4, wherein: The rod and hole embedding connection is all the taper fitting structure.

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