Total station fixing frame for shield tunnel

Abstract

The utility model relates to the technical field of total station fixing, in particular to a total station fixing frame for a shield tunnel. Comprising a support body and a fixing mechanism arranged on the support body, the fixing mechanism is connected with a duct piece pre-buried channel, and a total station is arranged on the support body; the fixing mechanism comprises a fixing piece and a T-shaped bolt penetrating through the fixing piece, and the T-shaped bolt is fixedly connected with the duct piece pre-buried channel through a nut; the support body comprises two vertical supports and a transverse support arranged between the two vertical supports, a connecting disc is arranged at the upper end of the transverse support, a connecting bolt is arranged in the center of the connecting disc, and the total station is connected with the fixing frame through the connecting bolt. The fixing frame is fixed through the T-shaped bolts by means of the existing tunnel segment pre-buried channel, extra bolt punching is not needed, the segment cannot be damaged, meanwhile, the fixing frame can be disassembled and used repeatedly, and construction and installation are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of total station fixing, in particular to a total station fixing frame for a shield tunnel. Background Art

[0002] In shield tunnels, a total station is needed to observe observation data such as slant distance, zenith distance, horizontal angle, etc. to realize the automation of mapping. However, in shield tunnel construction, in order to ensure accurate and stable measurement work, the total station needs to be fixed in position. Currently, it is usually fixed in the following ways: bracket fixing method, base fixing method, hanging fixing method. All of the above methods need to be fixed on the shield machine or tunnel wall by bolts or other fixing devices. The common practice is to drill bolt holes on the formed tunnel segments, causing irreversible damage to the segments. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a total station fixing frame for a shield tunnel, so as to solve the problem that in the current shield tunnel construction, in order to fix the total station, it is necessary to drill holes in the pipe segment and destroy the surface structure of the pipe segment.

[0004] To achieve the above object, the utility model provides the following technical solutions: a total station fixing frame for a shield tunnel, comprising a bracket body, a fixing mechanism arranged on the bracket body, the fixing mechanism being connected to a pre-buried groove of a pipe segment, and the total station being arranged on the bracket body;

[0005] The fixing mechanism comprises a fixing plate, a T-bolt penetrating the fixing plate, and the T-bolt is fixedly connected to the pre-buried groove of the pipe segment by a nut;

[0006] The support body includes two vertical supports and a transverse support arranged between the two vertical supports. The upper end of the transverse support is provided with a connecting disk, and the center of the connecting disk is provided with a connecting bolt. The total station is connected to the fixing frame through the connecting bolt.

[0007] Furthermore, rotation locking pieces are provided on both sides of the T-bolt.

[0008] Furthermore, the rotation locking member comprises fan-column-shaped rubber blocks arranged at both ends of the T-bolt, and the arc surface of the fan-column-shaped rubber block abuts against the two side walls of the pre-embedded groove of the pipe segment.

[0009] Furthermore, the total length of the T-bolt and the two fan-column-shaped rubber blocks is slightly greater than the width of the pre-embedded groove of the pipe segment.

[0010] Furthermore, the two fan-column-shaped rubber blocks are placed on both sides of the trapezoidal bolt in a centrally symmetrical manner.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model utilizes the existing pre-buried grooves of the tunnel segments to fix the fixing frame by T-bolts, without the need for additional bolt drilling, and will not cause damage to the segments. At the same time, the utility model can be disassembled and reused many times. The rotating locking parts on both sides of the T-bolts can prevent the T-bolts from rotating when the nuts are tightened, which is convenient for construction and installation. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a schematic diagram of the connection structure between the fixing mechanism and the pre-buried groove of the pipe segment in Example 1 of the utility model;

[0015] Figure 3 This is a schematic structural diagram of a T-bolt and a rotary locking member in Example 2 of the utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the rotary locking member and the two side walls of the pre-embedded groove of the pipe segment in Example 2 of the utility model;

[0017] In the figure:

[0018] Segment embedded channel 1, fixing plate 2, T-bolt 3, nut 4, vertical bracket 5, horizontal bracket 6, connecting disc 7, connecting bolt 8, fan-column type rubber block 9. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Embodiment 1:

[0021] Depend on Figure 1-2 As shown, a total station fixing frame for a shield tunnel includes a bracket body, a fixing mechanism arranged on the bracket body, the fixing mechanism is connected to a pre-buried groove 1 of a pipe segment, and the total station is arranged on the bracket body;

[0022] The fixing mechanism includes a fixing plate 2, a T-bolt 3 passing through the fixing plate 2, and the T-bolt 3 is fixedly connected to the pre-embedded channel 1 of the pipe segment through a nut 4; the bracket body includes two vertical brackets 5, a transverse bracket 6 arranged between the two vertical brackets 5, a connecting disc 7 is arranged at the upper end of the transverse bracket 6, and a connecting bolt 8 is arranged at the center of the connecting disc 7, and the total station is connected to the fixing bracket through the connecting bolt 8. The two ends of the fixing plate 2 are respectively fixed to the two vertical brackets 5, and the fixing plate 2 is provided with bolt holes, and the T-bolt 3 passes through the bolt holes, and the pre-embedded channel 1 of the pipe segment is a T-slot.

[0023] When in use, the T-bolt 3 is fixed in the pre-buried groove 1 of the pipe segment through the nut 4, and the fixing frame can be fixed to the inner wall of the tunnel without destructive drilling, which is convenient for disassembly and turnover.

[0024] Embodiment 2:

[0025] The similarities between this embodiment and embodiment 1 are not repeated here, but the differences are as follows:

[0026] like Figure 3-4 As shown,

[0027] Rotation locking members are provided on both sides of the T-bolt 3. The rotation locking members include fan-shaped columnar rubber blocks 9 provided at both ends of the T-bolt 3, and the arc surface of the fan-shaped columnar rubber blocks 9 abuts against the two side walls of the pre-embedded channel 1 of the pipe segment. The total length of the T-bolt 3 and the two fan-shaped columnar rubber blocks 9 is slightly greater than the width of the pre-embedded channel 1 of the pipe segment. The two fan-shaped columnar rubber blocks are placed on both sides of the T-bolt 3 in a centrally symmetrical manner.

[0028] When the nut 4 is tightened clockwise, the T-bolt 3 is driven to rotate clockwise, and the fan-shaped rubber block 9 rotates accordingly. When the arc surface of the fan-shaped rubber block 9 abuts against the two side walls of the pre-embedded channel 1 of the pipe segment, the fan-shaped rubber block 9 is squeezed and elastically deformed, forming a relative locking structure with the two side walls of the pre-embedded channel 1 of the pipe segment, so that the T-bolt 3 cannot continue to rotate. At this time, the nut 4 continues to be rotated clockwise to increase the squeezing of the fan-shaped rubber block 9 and the pre-embedded channel 1 of the pipe segment, thereby improving the locking strength.

[0029] When the nut 4 is loosened counterclockwise, the T-bolt 3 is subjected to a counterclockwise rotation force, releasing the squeezing force between the fan-shaped rubber block 9 and the pre-embedded groove 1 of the pipe segment, and the T-bolt 3 rotates. Figure 4 The left picture is a schematic diagram of clockwise rotation, and the right picture is a schematic diagram of the extrusion and expansion of the fan-shaped columnar rubber block and the side wall of the embedded groove of the pipe segment.

[0030] 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 total station fixing frame for a shield tunnel, characterized in that: It comprises a support body, a fixing mechanism arranged on the support body, the fixing mechanism is connected to the pre-buried groove of the pipe segment, and a total station is arranged on the support body; The fixing mechanism comprises a fixing plate, a T-bolt penetrating the fixing plate, and the T-bolt is fixedly connected to the pre-buried groove of the pipe segment by a nut; The support body includes two vertical supports and a transverse support arranged between the two vertical supports. A connecting disc is arranged at the upper end of the transverse support. A connecting bolt is arranged at the center of the connecting disc. The total station is connected to the fixing frame through the connecting bolt. Rotation locking pieces are provided on both sides of the T-bolt.

2. The total station fixing frame for shield tunneling according to claim 1, characterized in that: The rotary locking member comprises a fan-shaped columnar rubber block arranged at both ends of the T-shaped bolt, and the arc surface of the fan-shaped columnar rubber block abuts against the two side walls of the pre-embedded groove of the pipe segment.

3. The total station fixing frame for shield tunneling according to claim 2 is characterized in that: The total length of the T-bolt and the two fan-column-shaped rubber blocks is slightly greater than the width of the pre-embedded groove of the pipe segment.

4. The total station fixing frame for shield tunneling according to claim 2, characterized in that: The two fan-column-shaped rubber blocks are placed on both sides of the T-shaped bolt in a centrally symmetrical manner.

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