Coal mine tunnel surface displacement observation device

Abstract

The utility model relates to the technical field of coal mine tunnels, in particular to a coal mine tunnel surface displacement observation device which comprises a loading and unloading assembly and an observation assembly. The loading and unloading assembly comprises a sleeve, the first threaded rod is sleeved with the sleeve, and a supporting connecting rod is hinged to the bottom end of the sleeve. The observation assembly comprises a top plate and a bottom plate, and a first threaded rod is fixed in a butt joint sleeve above the top plate; the upper portion of the second threaded rod is fixedly connected with a worm gear, the lower portion of the top plate is connected with a worm, the worm is meshed with the worm gear, the middle of the second threaded rod is in threaded connection with a lifting piece, the lower portion of the lifting piece is rotationally connected with a rotating ring, and the outer side of the rotating ring is fixedly connected with a horizontal connecting rod which is connected with a mounting block. A spiral guide rod is further arranged between the top plate and the bottom plate, the spiral guide rod is in sliding connection with a mounting block, and a displacement measuring instrument is mounted on the mounting block; and a connecting anchor rod is fixedly connected below the bottom plate. The displacement observation device can be flexibly assembled and disassembled, and the observation angle and height can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine roadway, specifically relates to a coal mine roadway surface displacement observation device. BACKGROUND

[0002] The size of the roadway and its surface displacement have important influence on the safety and stability of the roadway, in order to ensure the production safety of coal mining and reduce the accident frequency, it is usually necessary to use size detector, displacement measuring instrument and other equipment to measure the coal mine roadway.

[0003] For example: CN212432089U provides a portable mining engineering quality detector, the device includes detection piece and support, wherein the support includes support base, the bottom of the support base is distributed with telescopic leg at equal intervals, the middle part of the support base is also screwed with screw rod, the height of the detection piece can be adjusted by rotating the screw rod; the detection piece includes shell and detection head, the detection head needs to be set to be uniformly distributed along the circumference of the shell to detect the roadway as much as possible, and the number of detection heads is often more.

[0004] In addition, a part of the coal mine roadway displacement observation device needs to be fixed and installed in the coal mine roadway by punching when in use, which is inconvenient to take out and replace the position for roadway displacement measurement, so that one displacement observation device can only observe the displacement of the roadway in the fixed area, and the observation angle is also limited. UTILITY MODEL CONTENT

[0005] In view of the technical problems that the existing coal mine roadway displacement observation device is inconvenient to take out and replace the position and the observation angle is limited, the utility model provides a coal mine roadway surface displacement observation device.

[0006] The technical scheme of the utility model is as follows:

[0007] A coal mine roadway surface displacement observation device, including loading and unloading assembly and observation assembly, the loading and unloading assembly includes sleeve, the first threaded rod is sleeved in the sleeve and is connected with the sleeve screw, the outer surface bottom end of the sleeve is hingedly connected with at least three support connecting rods;

[0008] The observation assembly includes top plate and bottom plate, the top plate and the bottom plate are connected through vertical connecting rod, the top plate is provided with butt joint sleeve above, the first threaded rod is fixed in the butt joint sleeve;

[0009] A second threaded rod is arranged between the top plate and the bottom plate, the second threaded rod is rotatably connected with the top plate and the bottom plate respectively, the upper portion of the second threaded rod is coaxially fixedly connected with a worm wheel, a worm is connected with the top plate through a mounting frame below the top plate, the worm is engaged with the worm wheel, the middle portion of the second threaded rod is threadedly connected with a lifting piece, the lifting piece is provided with a limiting hole, a vertical guide rod passes through the limiting hole and is fixedly connected with the bottom plate, a rotating ring is rotatably connected with the lifting piece below, the outer side surface of the rotating ring is fixedly connected with a horizontal connecting rod, the end of the horizontal connecting rod away from the rotating ring is fixedly connected with a mounting block, the top plate and the bottom plate are further fixedly connected with a spiral guide rod, the spiral guide rod is slidably connected with the mounting block, and a displacement measuring instrument is mounted on the mounting block.

[0010] The anchor rod is fixedly connected with the bottom plate, and a tapered head is arranged at the bottom end of the anchor rod.

[0011] Further, the top end of the first threaded rod is provided with a hand wheel, which facilitates the operation of the technical personnel.

[0012] Further, the bottom end surface of the first threaded rod is non-threaded and radially provided with a threaded hole, a connecting hole is formed in the side wall of the butt joint sleeve, a fixing bolt penetrates through the connecting hole and the threaded hole, and the first threaded rod and the butt joint sleeve are fixedly connected.

[0013] Further, the bottom end of the supporting connecting rod is hingedly connected with a supporting plate, and the bottom surface of the supporting plate is provided with a plurality of anti-skid ground spikes.

[0014] Further, the bottom end of the sleeve outer surface is hingedly connected with the supporting connecting rod through a hinging seat, and the top of the hinging seat is provided with a limiting plate.

[0015] Further, the lifting piece is provided with at least two limiting holes, and the limiting holes are uniformly distributed in the circumferential direction.

[0016] Further, the outer side surface of the rotating ring is fixedly connected with three horizontal connecting rods, the three horizontal connecting rods are uniformly distributed along the circumferential direction of the rotating ring, the number of the spiral guide rods is three groups, and the mounting block at the end of each horizontal connecting rod is slidably connected with one of the spiral guide rods.

[0017] The utility model discloses the beneficial effect lies in:

[0018] The loading and unloading assembly can drive the anchor rod to move downward by twisting the first threaded rod, thereby inserting the anchor rod into the ground to complete the installation of the coal mine roadway surface displacement observation device, and the loading and unloading assembly can be disassembled during formal observation, and when it is necessary to replace the position of the coal mine roadway surface displacement observation device, the anchor rod can also be taken out from the ground through the loading and unloading assembly, thereby improving the flexibility of the device.

[0019] The observation assembly can drive the worm gear to rotate by screwing, the worm gear rotation can drive the second threaded rod to rotate, the lifting piece and the rotating ring are lifted, the rotating ring drives the mounting block to slide along the spiral guide rod, the displacement measuring instrument at one end of the mounting block rotates and lifts, the observation angle and height are adjusted, and the practicality of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed to be used in the description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 It is a three-dimensional structure schematic view of the present application.

[0022] Figure 2 It is a front view schematic view of the present application.

[0023] Figure 3 It is Figure 2 The enlarged view of A in the figure.

[0024] Figure 4 It is a three-dimensional structure schematic view of the observation assembly of the present application.

[0025] In the figure, 1 is a sleeve, 2 is a support connecting rod, 3 is a support plate, 4 is a first threaded rod, 5 is a hand wheel, 6 is a butt joint sleeve, 7 is a fixing bolt, 8 is a top plate, 9 is a vertical connecting rod, 10 is a bottom plate, 11 is a second threaded rod, 12 is a worm gear, 13 is a lifting piece, 14 is a rotating ring, 15 is a horizontal connecting rod, 16 is a mounting block, 17 is a displacement measuring instrument, 18 is a worm gear, 19 is a spiral guide rod, 20 is an anchor rod, and 21 is a vertical guide rod. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical scheme in the present application will be described clearly and completely in the following combined with the drawings in the specific embodiments. Obviously, the following described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present patent, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present patent.

[0027] Embodiment 1

[0028] As Figures 1 to 4As shown, a coal mine tunnel surface displacement observation device, including loading and unloading assembly and observation assembly; loading and unloading assembly includes sleeve 1, the first threaded rod 4 is sleeved in the sleeve 1 inside and is connected with the sleeve 1 screw, the top end of the first threaded rod 4 is provided with hand wheel 5, the bottom end surface of the first threaded rod 4 is not threaded and is radially provided with threaded hole, the bottom end of the sleeve 1 outer surface is provided with at least three hinged seats at equal intervals, and is hinged and supported connecting rod 2 through the hinged seat, the top of the hinged seat is provided with limit plate, the bottom end of the supporting connecting rod 2 is hinged with support plate 3, the bottom surface of the support plate 3 is provided with a plurality of anti-skid ground thorns;

[0029] Observation assembly includes top plate 8 and bottom plate 10, top plate 8 and bottom plate 10 are connected through vertical connecting rod 9, top plate 8 is provided with butt joint sleeve 6, butt joint sleeve 6 side wall is provided with connecting hole, fixed bolt 7 penetrates connecting hole and threaded hole to realize the fixed connection of first threaded rod 4 and butt joint sleeve 6;

[0030] Top plate 8 and bottom plate 10 are provided with second threaded rod 11, second threaded rod 11 is rotatably connected with top plate 8 and bottom plate 10 respectively, upper part of second threaded rod 11 is coaxially fixedly connected with worm gear 12, bottom plate 10 is connected with worm 18 through mounting bracket, worm 18 and worm gear 12 are engaged, middle part of second threaded rod 11 is screw connected with lifting piece 13, lifting piece 13 is provided with at least two limit holes, limit holes are uniformly distributed along circumferential direction, vertical guide rod 21 penetrates limit hole and is fixedly connected with bottom plate 10, lifting piece 13 is rotatably connected with rotating ring 14 below, vertical guide rod 21 is located inside rotating ring 14 and does not contact rotating ring 14, lifting piece 13, rotating ring 14 and second threaded rod 11 are coaxially arranged, horizontal connecting rod 15 is fixedly connected with mounting block 16 at the end away from rotating ring 14, screw guide rod 19 is also fixedly connected between top plate 8 and bottom plate 10, mounting block 16 is provided with through hole inside, screw guide rod 19 penetrates through the through hole of mounting block 16, to realize the sliding connection of mounting block 16 and screw guide rod 19, displacement measuring instrument 17 is installed on the outside of mounting block 16, displacement measuring instrument 17 can be selected from width measuring instrument, range finder and the like according to need, for example, displacement measuring instrument 17 can be KG01-30N laser displacement range sensor;

[0031] Anchor rod 20 is fixedly connected at the center position below bottom plate 10, and the bottom end of anchor rod 20 is provided with a tapered head.

[0032] The working process of the coal mine tunnel surface displacement observation device in embodiment 1 is as follows:

[0033] First, the support link 2 of the loading and unloading assembly is opened, the support plate 3 is in contact with the ground, then the butt joint sleeve 6 of the observation assembly to be installed is butt jointed with the bottom end of the first threaded rod 4, the first threaded rod 4 and the butt joint sleeve 6 are locked by the fixing bolt 7, then the first threaded rod 4 is rotated by the hand wheel 5, the anchor rod 20 is gradually inserted into the ground while rotating, until the bottom plate 10 is in contact with the ground, the installation is completed, then the fixing bolt 7 is screwed out of the butt joint sleeve 6, the first threaded rod 4, the support link 2, the hand wheel 5, the sleeve 1 and the support plate 3 are disassembled.

[0034] When the displacement observation height and angle need to be adjusted, the second threaded rod 11 is rotated by the rotatable worm 18 through the worm wheel 12, the second threaded rod 11 rotates to drive the lifting piece 13 and the rotating ring 14 to lift, at this time, the rotating ring 14 drives the mounting block 16 to slide along the spiral guide rod 19 through the horizontal connecting rod 15, so that the mounting block 16 rotates around the second threaded rod 11 while lifting, thereby adjusting the height and angle of the displacement measuring instrument 17.

[0035] When the observation assembly needs to be disassembled, the first threaded rod 4 is reinstalled into the butt joint sleeve 6, the first threaded rod 4 drives the anchor rod 20 to rotate and rise by rotating the hand wheel 5, so that the anchor rod 20 can be recycled and disassembled.

[0036] Embodiment 2

[0037] A coal mine tunnel surface displacement observation device, on the basis of embodiment 1, the outer side of the rotating ring 14 is fixedly connected with three horizontal connecting rods 15, the three horizontal connecting rods 15 are evenly distributed along the circumferential direction of the rotating ring 14, the number of the spiral guide rods 19 is three groups, and the mounting block 16 at the end of each horizontal connecting rod 15 is slidably connected with one of the spiral guide rods 19.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coal mine roadway surface displacement observation device, comprising a loading and unloading assembly and an observation assembly, characterized in that, The loading and unloading assembly comprises a sleeve, a first threaded rod sleeved in the sleeve and threadedly connected with the sleeve, and at least three support connecting rods equidistantly hinged to the bottom end of the outer surface of the sleeve; The observation assembly comprises a top plate and a bottom plate connected by a vertical connecting rod, and a butt joint sleeve arranged above the top plate and a first threaded rod fixed in the butt joint sleeve; A second threaded rod is arranged between the top plate and the bottom plate and rotationally connected with the top plate and the bottom plate, the upper portion of the second threaded rod is coaxially fixedly connected with a worm wheel, a worm is connected to the bottom of the top plate through a mounting bracket, the worm is engaged with the worm wheel, the middle portion of the second threaded rod is threadedly connected with a lifting piece, the lifting piece is provided with a limiting hole, a vertical guide rod passes through the limiting hole and is fixedly connected with the bottom plate, a rotating ring is rotationally connected to the bottom of the lifting piece, the outer side of the rotating ring is fixedly connected with a horizontal connecting rod, the end of the horizontal connecting rod away from the rotating ring is fixedly connected with a mounting block, a spiral guide rod is further fixedly connected between the top plate and the bottom plate, the spiral guide rod is slidably connected with the mounting block, and a displacement measuring instrument is mounted on the mounting block; An anchor rod is fixedly connected to the bottom of the bottom plate, and a tapered head is arranged at the bottom end of the anchor rod.

2. The coal mine roadway surface displacement observation device according to claim 1, characterized in that, The top end of the first threaded rod is provided with a hand wheel.

3. The coal mine roadway surface displacement observation device according to claim 1, characterized in that, The bottom end surface of the first threaded rod is non-threaded and is provided with a threaded hole in the radial direction, and a connecting hole is arranged in the side wall of the butt joint sleeve, and a fixing bolt penetrates through the connecting hole and the threaded hole.

4. The coal mine roadway surface displacement observation device of claim 1, wherein, The bottom end of the support connecting rod is hingedly connected with a support plate, and the bottom surface of the support plate is provided with a plurality of anti-skid ground spikes.

5. The coal mine roadway surface displacement observation device of claim 1, wherein, The bottom end of the outer surface of the sleeve is hingedly connected with the support connecting rod through a hinge seat, and the top of the hinge seat is provided with a limiting plate.

6. The coal mine roadway surface displacement observation device of claim 1, wherein, The lifting piece is provided with at least two limiting holes, and the limiting holes are uniformly distributed in the circumferential direction.

7. The coal mine roadway surface displacement observation device of claim 1, wherein, The outer side of the rotating ring is fixedly connected with three horizontal connecting rods, the three horizontal connecting rods are uniformly distributed in the circumferential direction of the rotating ring, and the number of the spiral guide rods is three groups, and the mounting block at the end of each horizontal connecting rod is slidably connected with one of the spiral guide rods.

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