High-precision measuring device for mine shaft and roadway

Abstract

The utility model discloses a mine shaft and roadway high-precision measuring device which comprises a bottom plate and a measuring plate, a plurality of fixing rods are evenly arranged below the bottom plate, a connecting piece is installed above the bottom plate through a plurality of first bolts, the connecting piece is in an L shape, a first support is installed on the side face of the connecting piece, the first support is in an L shape, and a second support is installed on the side face of the first support. A laser range finder is installed on the upper portion of the first support through a clamping mechanism, light emitted by the laser range finder is kept perpendicular to the bottom plate, a signal emitter is installed at the top end of the laser range finder, and gradienters are installed on the upper surface of the bottom plate and the upper surface of the measuring plate. Through the arrangement of the gradienter, the horizontal arrangement of the device can be ensured through the gradienter when the device is fixed before measurement, and during measurement, the measuring plate can accurately reflect laser emitted by the laser range finder, so that errors are avoided, and the measurement accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to a high-precision measuring device for a mine shaft and a tunnel. Background Art

[0002] Mine underground measurement is one of the most important contents of mine construction. When accepting the shaft dimensions of underground excavation projects, it is necessary to lower the shaft centerline from the surface. Traditional shaft acceptance requires two people to pull the steel ruler, and one person is responsible for ensuring that the shaft centerline does not tilt or deviate. Due to the poor underground environment, dim light, and frequent water splashing, the steel ruler measurement dimensions sometimes deviate. Generally, there are two situations: one is that the steel rulers on both sides of the centerline are not in a straight line; the other is that there are measurement points close to both sides of the shaft wall that are not on the same level. At the same time, due to the small underground space and the large number of acceptance personnel, the measurement accuracy and work efficiency are greatly affected. In order to reduce the number of acceptance personnel and improve the measurement accuracy and work efficiency, it is very necessary to design and develop a device for high-precision measurement of shafts and tunnels.

[0003] After searching, the Chinese patent application number 202122225554.X discloses a high-precision measuring device for underground mine shafts and tunnels, including a measuring instrument, a control box, and an infrared spotlight. The control box is installed at the front end of the measuring instrument, and the infrared spotlight is fixed to the side end of the measuring instrument. The high-precision measuring device for underground mine shafts and tunnels in the above document has the following shortcomings: the mine floor may be uneven, and there may be debris such as slag, which makes it impossible for the laser to accurately reflect for precise measurement. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a high-precision measuring device for mine shafts and tunnels.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-precision measuring device for mine shafts and tunnels, comprising a base plate and a measuring plate, wherein a plurality of fixing rods are evenly arranged below the base plate, a connecting piece is installed above the base plate through a plurality of first bolts, the connecting piece is in an "L" shape, two of the connecting pieces are symmetrically installed, a first bracket is commonly installed on the sides of the two connecting pieces, the first bracket is in an "L" shape, a laser rangefinder is installed on the upper part of the first bracket through a clamping mechanism, the light emitted by the laser rangefinder is kept perpendicular to the base plate, a signal transmitter is installed on the top of the laser rangefinder, the signal transmitter is connected to the operator's computer signal, and a level is installed on the upper surface of the base plate and the upper surface of the measuring plate.

[0007] As a further solution of the utility model: ribs are provided at right angles of the first bracket.

[0008] As a further solution of the utility model: a second bracket is installed on the measuring plate, and a level is vertically installed on the side wall of the second bracket and the side wall of the first bracket respectively.

[0009] As a further solution of the utility model: the lower ends of the plurality of fixing rods and the lower surface of the measuring plate are both installed with conical heads.

[0010] As a further solution of the utility model: the clamping mechanism includes a clamping block, a second bolt is installed through the clamping block, and a circular hole is formed at the end of the clamping block and the first bracket, and a rubber pad is installed in the circular hole.

[0011] As a further solution of the utility model: a limit block is installed on the outer wall of the laser rangefinder.

[0012] As a further solution of the utility model: the top end of the fixing rod is provided with a thread, and the lower surface of the bottom plate is provided with a screw hole.

[0013] The beneficial effects of the utility model are:

[0014] 1. By setting up a level, when fixing the device before measurement, the level can be used to ensure the horizontal arrangement of the device. When measuring, the measuring plate can accurately reflect the laser emitted by the laser rangefinder to avoid errors and ensure accurate measurement.

[0015] 2. By setting the ribs, the bracket improves stability and avoids shaking that may cause measurement errors.

[0016] 3. By arranging the level vertically, the device can be brought into the mine and the bottom plate can be fixed vertically on the wall. At this time, the vertically arranged level will become horizontal. The device can be adjusted to a horizontal level through the level to carry out horizontal tunnel measurement.

[0017] 4. Through the above solution, it is convenient for the operator to insert the conical head into the ground or the wall to fix the device.

[0018] 5. Through the scheme, the laser rangefinder is placed through the circular hole, and the laser rangefinder is fixed by pressing the clamp block with the second bolt, which is convenient for disassembling and installing the laser rangefinder and changing the direction of the laser rangefinder to change the measurement mode. The rubber pad prevents the clamp block from squeezing the laser rangefinder when fixing.

[0019] 6. By setting a limit block, the second bolt can be prevented from loosening and causing the laser rangefinder to fall and cause damage to the device.

[0020] 7. By setting the threaded screw hole, the fixing rod can be easily removed, which is convenient for the operator to clean it and convenient for storage when the device is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the back structure of a high-precision measuring device for mine shafts and tunnels proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the front structure of a high-precision measuring device for mine shafts and tunnels proposed by the utility model;

[0023] Figure 3 This is a cross-sectional view of a high-precision measuring device for a mine shaft and tunnel proposed by the utility model;

[0024] Figure 4 The utility model proposed Figure 3 Schematic diagram of the structure at A in the middle.

[0025] In the figure: 1-base plate, 2-measuring plate, 3-connecting piece, 31-first bolt, 4-first bracket, 5-rib plate, 6-level, 7-fixing rod, 8-conical head, 9-laser rangefinder, 10-signal transmitter, 11-limiting block, 12-second bracket, 13-clamping block, 131-second bolt, 14-thread, 141-screw hole, 15-rubber pad. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] Example 1

[0029] A high-precision measuring device for mine shafts and tunnels, such as Figure 1-4As shown, it includes a base plate 1 and a measuring plate 2, a plurality of fixing rods 7 are evenly arranged below the base plate 1, a connecting member 3 is installed above the base plate 1 through a plurality of first bolts 31, the connecting member 3 is in an "L" shape, two connecting members 3 are symmetrically installed, a first bracket 4 is commonly installed on the sides of the two connecting members 3, the first bracket 4 is in an "L" shape, a laser rangefinder 9 is installed on the upper part of the first bracket 4 through a clamping mechanism, the light emitted by the laser rangefinder 9 is kept perpendicular to the base plate 1, a signal transmitter 10 is installed on the top of the laser rangefinder 9, the signal transmitter 10 is connected to the operator computer signal, and a level 6 is installed on the upper surface of the base plate 1 and the upper surface of the measuring plate 2.

[0030] By setting up a level, when the device is fixed before measurement, the level can be used to ensure the horizontal arrangement of the device. When measuring, the measuring plate can accurately reflect the laser emitted by the laser rangefinder to avoid errors and ensure accurate measurement.

[0031] The device is further configured such that a rib plate 5 is provided at a right angle to the first bracket 4 .

[0032] By setting the ribs, the stability of the bracket is improved to avoid shaking that may cause measurement errors.

[0033] The device is further configured such that a second bracket 12 is mounted on the measuring plate 2 , and a level 6 is vertically mounted on the side wall of the second bracket 12 and the side wall of the first bracket 4 .

[0034] By arranging the level vertically, the device can be brought into the mine and the bottom plate can be fixed vertically on the wall. At this time, the vertically arranged level will become horizontal. The device can be adjusted to a horizontal level through the level to carry out horizontal tunnel measurement.

[0035] The device is further configured such that the lower ends of the plurality of fixing rods 7 and the lower surface of the measuring plate 2 are both provided with conical heads 8 .

[0036] The solution makes it convenient for operators to insert the conical head into the ground or the wall, thereby fixing the device.

[0037] The device is further configured such that the clamping mechanism comprises a clamping block 13 , a second bolt 131 is installed through the clamping block 13 , a circular hole is formed in the ends of the clamping block 13 and the first bracket 4 , and a rubber pad 15 is installed in the circular hole.

[0038] According to the scheme, the laser rangefinder is placed through the circular hole, and the laser rangefinder is fixed by pressing the clamp block with the second bolt, so that the laser rangefinder is convenient to be disassembled and installed, and the direction of the laser rangefinder is convenient to be changed to change the measurement mode, and the rubber pad prevents the clamp block from squeezing and damaging the laser rangefinder when fixing.

[0039] The device is further configured such that a limit block 11 is installed on the outer wall of the laser rangefinder 9 .

[0040] By setting a limit block, the second bolt is prevented from loosening and causing the laser rangefinder to fall, thereby causing damage to the device.

[0041] The device is further configured such that a thread 14 is provided on the top of the fixing rod 7 , and a screw hole 141 is provided on the lower surface of the bottom plate 1 .

[0042] By providing the threaded screw holes, the fixing rod can be easily removed, making it convenient for operators to clean it and convenient to store the device when not in use.

[0043] Working principle: insert the bottom plate 1 into the ground at the side of the mine shaft entrance through the conical head 8, adjust the level of the device through the level 6, and at the same time, the employee at the bottom of the shaft inserts the measuring plate 2 into the ground at the bottom of the mine through the conical head 8, and adjusts the level of the measuring plate 2 through the level 6. At this time, the laser rangefinder 9 emits a laser and turns back when it contacts the measuring plate 2. After receiving the laser rangefinder 9, the measurement result is transmitted to the operator's computer through the signal transmitter 10; when tunnel measurement is required, only the device needs to be brought to the bottom of the shaft, and the bottom plate is vertically fixed on the wall through the conical head 8. At this time, the level 6 originally arranged vertically on the side wall of the first bracket 4 will become horizontal, and the device can be adjusted to a horizontal level through the level 6 to perform horizontal tunnel measurement.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision measuring device for a mine shaft and a tunnel, comprising a base plate (1) and a measuring plate (2), characterized in that: A plurality of fixing rods (7) are evenly arranged below the base plate (1). A connecting member (3) is installed above the base plate (1) through a plurality of first bolts (31). The connecting member (3) is in an "L" shape. Two connecting members (3) are installed symmetrically. A first bracket (4) is installed on the sides of the two connecting members (3). The first bracket (4) is in an "L" shape. A laser rangefinder (9) is installed on the upper part of the first bracket (4) through a clamping mechanism. The light emitted by the laser rangefinder (9) is kept perpendicular to the base plate (1). A signal transmitter (10) is installed on the top of the laser rangefinder (9). The signal transmitter (10) is connected to an operator computer signal. A level (6) is installed on the upper surface of the base plate (1) and the upper surface of the measuring plate (2).

2. A high-precision measuring device for mine shafts and tunnels according to claim 1, characterized in that: A rib plate (5) is provided at a right angle of the first bracket (4).

3. A high-precision measuring device for mine shafts and tunnels according to claim 2, characterized in that: A second bracket (12) is mounted on the measuring plate (2), and a level (6) is vertically mounted on the side wall of the second bracket (12) and the side wall of the first bracket (4), respectively.

4. A high-precision measuring device for mine shafts and tunnels according to claim 3, characterized in that: The lower ends of the fixing rods (7) and the lower surface of the measuring plate (2) are both equipped with conical heads (8).

5. A high-precision measuring device for mine shafts and tunnels according to claim 4, characterized in that: The clamping mechanism comprises a clamping block (13), a second bolt (131) is installed through the clamping block (13), and a circular hole is formed at the ends of the clamping block (13) and the first bracket (4), and a rubber pad (15) is installed in the circular hole.

6. A high-precision measuring device for mine shafts and tunnels according to claim 5, characterized in that: A limit block (11) is installed on the outer wall of the laser rangefinder (9).

7. A high-precision measuring device for mine shafts and tunnels according to claim 6, characterized in that: The top end of the fixing rod (7) is provided with a thread (14), and the lower surface of the bottom plate (1) is provided with a screw hole (141).

Images