Cable type roadway surface displacement monitoring device

Abstract

The utility model discloses a cable type roadway surface displacement monitoring device which comprises a pay-off device and a wire fixing device, each of the pay-off device and the wire fixing device comprises a rectangular shell, one side of the periphery of the shell is vertically and fixedly connected with a fixing rod, a telescopic pull box is arranged in the shell of the pay-off device, a measuring rope is wound in the telescopic pull box, and the measuring rope is fixedly connected with the fixing rod. The end of the measuring rope is connected with a pull ring, the pull ring is located on the side, away from the fixing rod, of the periphery of the shell, the shell of the wire fixing device is provided with a hook used for being connected with the pull ring, and the hook is located on the side, adjacent to the fixing rod, of the periphery of the shell. The measuring rope is stored in the telescopic pull box and can be conveniently pulled out during measurement, so that the service life of the roadway surface displacement measuring rope can be effectively prolonged, and meanwhile, roadway surface displacement observers can conveniently observe and measure the deformation of surrounding rocks at the top and the bottom of a roadway and left and right roadway sides in actual surrounding rocks.

Description

Technical Field

[0001] The utility model belongs to the technical field of observing deformation of surrounding rocks in underground coal mine tunnels, and particularly relates to a cable-type tunnel surface displacement monitoring device. Background Art

[0002] A set of tunnel surface displacement measurement stations consists of two monitoring sections, with eight monitoring points located at the top, bottom, left, and right sides of the tunnel. The mine currently uses wooden wedges as monitoring points, and then uses cotton string to measure deformation of the tunnel's top and sides through measuring pins. However, over time, the cotton string is susceptible to breakage due to dust, water erosion, and vehicle collisions, making it ineffective for monitoring tunnel deformation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a cable-type tunnel surface displacement monitoring device.

[0004] The technical solution adopted by the utility model is a cable-type tunnel surface displacement monitoring device, including a wire release and a wire fixer, the wire release and the wire fixer both include a rectangular shell, one side of the outer periphery of the shell is vertically fixed to a fixed rod, a telescopic pull box is provided in the shell of the wire release, a measuring rope is wound in the telescopic pull box, the end of the measuring rope is connected to a pull ring, the pull ring is located on the side of the outer periphery of the shell away from the fixed rod, and a hook for connecting the pull ring is provided on the shell of the wire fixer, and the hook is located on the side of the outer periphery of the shell adjacent to the fixed rod.

[0005] Furthermore, the outer shell adopts an aluminum stainless steel box.

[0006] Furthermore, a reflective logo is posted on the front of the shell.

[0007] Furthermore, the fixing rod is made of round wood and is fixed at a right angle of the shell.

[0008] Furthermore, the hook adopts a screw.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The utility model provides a cable-type tunnel surface displacement monitoring device, in which the measuring rope is stored in a telescopic pull box and can be conveniently pulled out when measuring, which can effectively extend the service life of the tunnel surface displacement measuring rope. At the same time, it is convenient for tunnel surface displacement observers to measure the deformation of the tunnel top and bottom and the left and right tunnel sides during actual surrounding rock observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of the utility model wire release device;

[0012] Figure 2 This is a front view of the wire fixing device of the utility model;

[0013] Figure 3 This is a schematic diagram of the utility model in the installation state;

[0014] Figure 4 It is a schematic diagram of the utility model in use state.

[0015] In the figure: 1. Wire release; 2. Wire fixer; 3. Housing; 4. Fixing rod; 5. Hook; 6. Telescopic wire box; 61. Measuring rope; 62. Pull ring. DETAILED DESCRIPTION

[0016] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a cable-type tunnel surface displacement monitoring device of the present invention in conjunction with the accompanying drawings.

[0017] like Figure 1 and Figure 2 As shown, a cable-type tunnel surface displacement monitoring device includes a wire payer 1 and a wire fixer 2. The wire payer 1 and the wire fixer 2 both include a rectangular housing 3, one side of the outer periphery of the housing 3 is vertically fixed to a fixing rod 4, a telescopic wire box 6 is provided in the housing 3 of the wire payer 1, a measuring rope 61 is wound in the telescopic wire box 6, and the end of the measuring rope 61 is connected to a pull ring 62, which is located on the side of the outer periphery of the housing 3 away from the fixing rod 4, and a hook 5 for connecting to the pull ring 62 is provided on the housing 3 of the wire fixer 2, and the hook 5 is located on the side of the outer periphery of the housing 3 adjacent to the fixing rod 4.

[0018] In this embodiment, the housing is a U-shaped aluminum stainless steel box, and the telescopic cable box 6 is fixed within the aluminum stainless steel box, protecting it from damage and extending the service life of the device. A reflective sign is affixed to the front of the aluminum stainless steel box, making roadway surface displacement monitoring more intuitive. The fixing rod 4 is a round log with a diameter of 30 mm and a length of 300 mm, fixed at a right angle to the housing 3.

[0019] When in use, six logs, four telescopic pull boxes 6, and six housings 3 are combined to form a tunnel surface displacement measuring station. Two wire-releasing devices 1 are set at the top of the tunnel, and the MSGLW500-22×500 anchor rod is used as the bottom measuring point at the bottom of the tunnel. The measuring rope 61 of the wire-releasing device 1 is stretched to the monitoring point of the tunnel floor. Figure 3 and Figure 4 As shown, two wire-releasing devices 1 are set on the left side of the tunnel, and two wire-fixing devices 2 are set on the right side of the tunnel. The measuring rope 61 of the wire-releasing device 1 is stretched to the hook 5 of the wire-fixing device 2 on the right side of the tunnel. The telescopic pull box 6 has an automatic retraction function, which makes it more convenient for personnel to observe the changes in the tunnel surrounding rock, and can effectively extend the service life of the tunnel surface displacement measuring rope. At the same time, it is convenient for tunnel surface displacement observers to measure the deformation of the tunnel top and bottom and the left and right tunnel walls in actual surrounding rock observation.

[0020] Under normal conditions, one set of tunnel surface displacement measuring stations is installed for every 300 meters of tunnel excavation, and at least 10 sets are installed per month. Each set of tunnel surface displacement monitoring requires two workers. After the improvement, one worker can be reduced, and economic benefits of 27,000 yuan can be generated in the later stage.

[0021] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A cable-type tunnel surface displacement monitoring device, characterized in that: The utility model comprises a wire releaser (1) and a wire fixer (2), wherein the wire releaser (1) and the wire fixer (2) both comprise a rectangular shell (3), one side of the outer periphery of the shell (3) being vertically fixedly connected to a fixing rod (4), a telescopic wire draw box (6) being provided in the shell (3) of the wire releaser (1), a measuring rope (61) being wound in the telescopic wire draw box (6), an end of the measuring rope (61) being connected to a pull ring (62), the pull ring (62) being located on a side of the outer periphery of the shell (3) away from the fixing rod (4), a hook (5) for connecting to the pull ring (62) being provided on the shell (3) of the wire fixer (2), the hook (5) being located on a side of the outer periphery of the shell (3) adjacent to the fixing rod (4).

2. The cable-type tunnel surface displacement monitoring device according to claim 1, characterized in that: The housing (3) is made of aluminum and stainless steel box.

3. The cable-type tunnel surface displacement monitoring device according to claim 1 or 2, characterized in that: A reflective sign is posted on the front of the housing (3).

4. The cable-type tunnel surface displacement monitoring device according to claim 1, characterized in that: The fixing rod (4) is made of round wood and is fixed at a right angle to the housing (3).

5. The cable-type tunnel surface displacement monitoring device according to claim 1, characterized in that: The hook (5) is a screw.

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