Rail passing pipe protection device in tunnel construction

Abstract

The utility model discloses a rail-crossing pipe protection device in tunnel construction, which comprises a plugging piece, the plugging piece comprises a hollow cylindrical-table-shaped plugging block with the upper end and the lower end opened, and the small end of the plugging block is inserted into and plugs a pipe orifice of a rail-crossing pipe; the fixing shaft is transversely arranged in the inner wall of the plugging block, and a vertically-through notch is formed in the fixing shaft; the nut can be movably connected with the fixing shaft in the axial direction of the fixing shaft, and the iron wire penetrating through the notch is fastened with the fixing shaft in the moving process; the sealing cover is detachably connected with the large-end thread of the plugging block; and one pair of plugging pieces are tensioned, connected and plugged between the two pipe orifices of the rail passing pipe through an iron wire penetrating through the fixing shaft and tightening the nuts. The rail passing pipe plugging device has the advantages that the iron wires are fixed in the plugging pieces, so that the pair of plugging pieces can be firmly fixed in the two pipe openings of the rail passing pipe, the structure is simple, the operation is convenient, the cost is low, impurities can be effectively prevented from entering the rail passing pipe, and the smoothness of the rail passing pipe is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, and particularly relates to a protection device for a track-through pipe during tunnel construction. Background Art

[0002] During tunnel construction, track-through pipes need to be embedded in the bottom plate of the tunnel for the installation and passage of power and communication cables in the later stage. Two iron wires for threading are also reserved in each pipe for cable threading in the later stage. The track-through pipes are generally made of high-density polyethylene pipes, and it is easy for sundries to enter during concrete pouring and construction, or they are easily crushed or knocked by personnel and vehicles, resulting in damage. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a protection device for a track-through pipe during tunnel construction according to the deficiencies of the above-mentioned prior art. By firmly fixing the iron wires in two plugging members, the plugging members are firmly fixed at the two openings of the track-through pipe.

[0004] The realization of the purpose of the utility model is completed by the following technical solutions:

[0005] A protection device for a track-through pipe during tunnel construction, which includes a pair of plugging members respectively plugged at two pipe orifices of the track-through pipe. Each of the plugging members includes:

[0006] A plugging block, which is in the shape of a frustum of a cylinder with a hollow interior and openings at both the upper and lower ends. The small end of the plugging block is inserted into and plugs the pipe orifice of the track-through pipe;

[0007] A fixed shaft, which is horizontally arranged in the inner wall of the plugging block, and a notch penetrating through the upper and lower parts is opened in the fixed shaft;

[0008] A nut, which is connected to the fixed shaft so as to be movable along the axial direction of the fixed shaft, and fastens the iron wire passing through the notch to the fixed shaft during the movement;

[0009] A cover, which is detachably connected to the large end of the plugging block by threads; where

[0010] Between a pair of the plugging members, they are tightly connected and plugged between the two pipe orifices of the track-through pipe by passing an iron wire through the fixed shaft and tightening the nut.

[0011] Optionally, the plugging block has a structure of a frustum of a cylinder with upper and lower openings and a longitudinal section being a regular trapezoid, and an internal thread is provided on the inner wall surface at the large end. The outer side surface of the cover connected to the plugging block is provided with an external thread, and the plugging block and the cover are detachably installed through thread matching.

[0012] Optionally, the outer surface of the fixed shaft has an external thread, and the nut can reciprocate in the length direction of the fixed shaft during the installation through thread matching and rotation.

[0013] Optionally, the fixed shaft forms two side walls and a bottom surface by opening the notch. After the iron wire passes through the notch, the nut is rotated to make the iron wire closely abut against the bottom surface and fastened to the fixed shaft.

[0014] Optionally, the maximum outer diameter of the plugging member is greater than the pipe orifice diameter of the track-passing pipe.

[0015] Optionally, the fixed shaft is welded in the plugging member.

[0016] Optionally, it further includes a protective warning guardrail, which is placed around the end of the track-passing pipe exposed from the tunnel floor after the concrete pouring of the tunnel floor filling is completed.

[0017] The advantages of the present utility model are as follows:

[0018] By fixing the iron wire in the plugging member, the present utility model enables a pair of plugging members to be firmly fixed in the two pipe orifices of the track-passing pipe. The structure is simple, the operation is convenient, the cost is low, it can effectively prevent sundries from entering the track-passing pipe, keep the track-passing pipe unobstructed, and at the same time can reduce or avoid the rolling of vehicles and the bumping of personnel, providing good construction conditions for subsequent communication and power construction. Description of the Drawings

[0019] Figure 1 is a separated schematic diagram of the track-passing pipe protection device of the present utility model, the track-passing pipe and the tunnel floor;

[0020] Figure 2 is an installation schematic diagram of the track-passing pipe protection device of the present utility model;

[0021] Figure 3 is a structural schematic diagram of the track-passing pipe protection device of the present utility model;

[0022] Figure 4 is an internal structural schematic diagram of the plugging member of the present utility model. Detailed Embodiment

[0023] Each label in the figure is respectively: 1, plugging block; 2, cover; 3, iron wire; 4, fixed shaft; 5, nut; 11, internal thread; 21, external thread; 41, notch; 42, external thread; 100, plugging member; 200, track-passing pipe; 300, tunnel floor.

[0024] Embodiment: Please refer to Figure 2 , Figure 3 and Figure 4As shown in the figure, a protection device for the cross-track pipe during tunnel construction of an embodiment is shown. Among them, it includes a pair of plugging members 100 respectively plugged at both pipe orifices of the cross-track pipe 200. Each plugging member 100 includes a plugging block 1, which is in the shape of a frustum of a cylinder with a hollow interior and openings at both the upper and lower ends. The small end of the plugging block 1 is inserted into and plugs the pipe orifice of the cross-track pipe 200; a fixed shaft 4, which is horizontally arranged in the inner wall of the plugging block 1, and a notch 41 penetrating through the upper and lower parts is opened in the fixed shaft 4; a nut 5, which is connected to the fixed shaft 4 so as to be movable along the axial direction of the fixed shaft 4, and tightens the iron wire 3 passing through the notch 41 with the fixed shaft 4 during the movement; a cover 2, which is detachably connected to the large end of the plugging block 1 by threads; and a pair of plugging members 100 are tightly connected and plugged between the two pipe orifices of the cross-track pipe 200 by passing the iron wire 3 through the fixed shaft 4 and tightening the nut 5.

[0025] In this embodiment, the plugging block 1 has a structure of a frustum of a cylinder with openings at the upper and lower ends and a longitudinal section being a regular trapezoid, and an internal thread 11 is provided on the inner wall surface at the large end. The outer side surface of the cover 2 connected to the plugging block 1 is provided with an external thread 21, and the plugging block 1 and the cover 2 are detachably installed through thread cooperation.

[0026] In this embodiment, the outer surface of the fixed shaft 4 has an external thread 42, and the nut 5 is installed through thread cooperation and can reciprocate in the length direction of the fixed shaft 4 during rotation.

[0027] In this embodiment, the fixed shaft 4 forms two side walls and a bottom surface by opening the notch 41. After the iron wire 3 passes through the notch 41, the iron wire 3 is tightened with the fixed shaft 4 by rotating the nut 5 so that the iron wire 3 is close to the bottom surface.

[0028] In this embodiment, the maximum outer diameter of the plugging member 100 is greater than the pipe orifice diameter of the cross-track pipe 200.

[0029] In this embodiment, the fixed shaft 4 is welded in the plugging block 1 of the plugging member 100.

[0030] In this embodiment, it further includes a protection warning guardrail (not shown), which is used to surround and place around the end of the cross-track pipe 200 exposed from the tunnel floor 300 after the concrete pouring of the tunnel floor 300 is completed.

[0031] The characteristics and functions of the present utility model are further understood through the following description.

[0032] The over-track pipe protection device in this embodiment uses a plugging member 100 in a hollow wedge shape to plug the orifice of the over-track pipe 200, and can also be used for fixing the reserved iron wire 3. There are openings at the bottom of the plugging block 1 of the plugging member 100, and a horizontal fixing shaft 4 is arranged inside. A part of the fixing shaft 4 is hollow to form a notch 41, and an external thread 42 is provided on the outer surface of the fixing shaft 4. A fixing nut 5 can move along the fixing shaft 4. During use, the iron wire 3 passes through the opening at the bottom of the plugging block 1 and penetrates into the fixing shaft 4, and then the nut 5 is rotated and tightened to fix the iron wire 3 inside the plugging block 1. After the iron wire 3 passes through the over-track pipe 200 in a penetrating manner, it is tightened and fixed from the plugging blocks 1 at both ends, which can be used to fix the wedge-shaped plugging block 1 and prevent the plugging block 1 from falling off after being collided by personnel or machinery during construction. After being installed and fixed, the cover 2 of the plugging block 1 is screwed on. The cover 2 and the interface have an external thread 21, and the inner wall of the plugging block 1 is provided with an internal thread 11, which can be directly tightened for sealing to prevent concrete or other sundries from entering during construction. After the tunnel floor 300 (as Figure 1 and Figure 2 shown) is filled with concrete and poured, a protection and warning guardrail (not shown) is set at the exposed part of the over-track pipe 200 to prevent the rolling and damage of construction personnel and vehicles. After the overall construction is completed, the plugging block 1 can be removed and reused.

[0033] In summary, the utility model fixes the iron wire in the plugging member, so that a pair of plugging members can be firmly fixed at the two orifices of the over-track pipe. It has a simple structure, convenient operation, low cost, can effectively prevent sundries from entering the over-track pipe, keep the over-track pipe unobstructed, and at the same time can reduce or avoid the rolling of vehicles and the bumping of personnel, providing good construction conditions for subsequent communication and power construction.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the implementation mode and protection scope of the utility model. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the description and illustrations of the utility model should be included in the protection scope of the utility model.

Claims

1. An over-track pipe protection device in tunnel construction, characterized in that It includes a pair of plugging members respectively plugged at two pipe orifices of the crossover pipe. Each of the plugging members includes: A plugging block, which is in the shape of a frustum of a cylinder with a hollow interior and openings at both the upper and lower ends. The small end of the plugging block is inserted into and plugs the pipe orifice of the crossover pipe; A fixed shaft, which is transversely arranged in the inner wall of the plugging block, and a notch penetrating through the upper and lower parts is formed in the fixed shaft; A nut, which is connected to the fixed shaft so as to be movable along the axial direction of the fixed shaft, and tightens the iron wire passing through the notch with the fixed shaft during the movement; A cover, which is detachably connected to the large end of the plugging block by a thread; where The pair of plugging members are tightly connected and plugged between the two pipe orifices of the crossover pipe by passing an iron wire through the fixed shaft and tightening the nut.

2. The protection device for the crossover pipe in tunnel construction according to claim 1, wherein The plugging block has a structure of a frustum of a cylinder with upper and lower openings and a longitudinal section being a regular trapezoid, and an internal thread is provided on the inner wall surface at the large end. The outer side surface of the cover connected to the plugging block is provided with an external thread, and the plugging block and the cover are detachably installed through thread matching.

3. The protection device for the cross-rail pipe during tunnel construction according to claim 1, wherein The outer surface of the fixed shaft has an external thread, and the nut is installed through thread matching and can reciprocate in the length direction of the fixed shaft during rotation.

4. The cross-track pipe protection device in tunnel construction according to claim 1, characterized in that, The fixed shaft forms two side walls and a bottom surface by opening the notch. After the iron wire passes through the notch, the iron wire is tightened with the fixed shaft by rotating the nut so that the iron wire abuts against the bottom surface.

5. The over-rail pipe protection device in tunnel construction according to claim 1, characterized in that, The maximum outer diameter of the plugging member is greater than the pipe orifice diameter of the crossover pipe.

6. The over-rail pipe protection device in tunnel construction according to claim 1, characterized in that The fixed shaft is welded in the plugging member.

7. The protection device for the cross-rail pipe in tunnel construction according to claim 1, characterized in that, It also includes a protection warning guardrail, which is used to surround and place around the end of the crossover pipe exposed from the tunnel floor after the concrete pouring of the tunnel floor filling is completed.

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