Mine inclined hole measuring device

Abstract

The utility model provides a mine inclined hole measuring device which comprises a measuring rod and a balance plate, one side of the measuring rod is fixedly connected with a supporting shaft, the balance plate is of an isosceles right triangle frame plate structure, the right-angle inflection point of the balance plate is rotatably connected with the supporting shaft, one side of the bevel edge of the balance plate is provided with an angle marking strip, and the angle marking strip is connected with the measuring rod. One side of the measuring rod is fixedly provided with an indicating strip used in cooperation with the angle marking strip, the bottom of the measuring rod is sleeved with a rotating sleeve, and the periphery of the rotating sleeve is provided with an expansion mechanism. According to the utility model, gravity is utilized to drive the balance plate to be in a horizontal state, manual participation is not needed, the precision of inclined angle measurement of the inclined hole is improved, and the butt joint convenience of the measuring rod and the mine inclined hole is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine measurement, in particular to a mine inclined hole measurement device. Background Art

[0002] In mines that use medium- and deep-hole mining, measuring the depth and inclination of blastholes is a necessary and arduous task. In order to end the history of manual labor for this work, people have gradually invented a variety of electronic blasthole depth finders and blasthole angle finders. However, since the ground is not level during measurement, the results measured by existing mechanical measuring devices will have errors.

[0003] The utility model with the current publication number CN215725638U proposes a mine inclined hole measuring device, including a balance plate, a measuring disc and a scale. The measuring disc is a semi-circular disc structure with the bottom area consistent with the top area of ​​the balance plate. The measuring disc is fixedly mounted on the top wall of the balance plate, and the scale is provided on the front wall of the measuring disc. A handle is fixedly mounted on the arc-shaped side wall of the scale. A rotatable mounting shaft is movably mounted in the middle position of the front wall of the balance plate. A measuring rod is sleeved on the mounting shaft. An indicator needle is fixedly mounted on the top wall of the measuring rod. The rear wall of the indicator needle fits the front wall of the measuring disc. A horizontal mechanism is provided on the balance plate. In the utility model, the mine inclined hole measuring device, when the measuring rod is extended into the hole, will tilt, and the measuring rod will drive the indicator needle to move on the measuring disc. The angle of the inclined hole can be measured by observing the value of the scale pointed by the indicator needle, thereby achieving the effect of enhancing the measurement accuracy.

[0004] However, the above-mentioned prior art still has some shortcomings when used: 1. The horizontal mechanism uses the principle of buoyancy to provide a horizontal reference benchmark for practical users. This setting has visual errors, that is, manual judgment errors, which will affect the accuracy of angle measurement; 2. The measuring rod is inserted into the inclined hole by direct plug-in. However, the size of the inclined hole is irregular. For example, when the diameter of the inclined hole is too large, the measuring rod will shake after insertion and cannot be accurately positioned.

[0005] To this end, the utility model provides a mine inclined hole measuring device. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a mine inclined hole measuring device to solve the problems raised in the above-mentioned background technology. The utility model utilizes gravity to drive the balance plate to a horizontal state, without the need for human intervention, thereby improving the accuracy of the inclined hole inclination angle measurement, and also has the advantage of improving the convenience of docking the measuring rod and the mine inclined hole.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a mine inclined hole measuring device, including a measuring rod and a balance plate, one side of the measuring rod is fixedly connected to a support shaft, the balance plate is an isosceles right-angled triangle frame plate structure, the right-angle turning point of the balance plate is rotatably connected to the support shaft, one side of the hypotenuse on the balance plate is provided with an angle marking strip, one side of the measuring rod is fixedly provided with an indicator strip used in conjunction with the angle marking strip, the bottom of the measuring rod is provided with a rotating sleeve, and the outer periphery of the rotating sleeve is provided with an expansion mechanism.

[0008] Furthermore, a positioning sleeve sleeved on the outside of the support shaft is fixedly connected to the right-angle inflection point of the balance plate, and the positioning sleeve and the support shaft are clearance-matched.

[0009] Furthermore, a compression sleeve used in conjunction with the positioning sleeve is screwed onto one end of the support shaft, and a handle is fixedly connected to the outer peripheral wall of the compression sleeve.

[0010] Furthermore, the rotating sleeve is connected to the measuring rod through a bearing, and a locking screw near the top is screwed through the outer wall of the rotating sleeve. One end of the locking screw is fixedly connected to the outer wall of the measuring rod, and the other end is fixedly connected to a handle.

[0011] Furthermore, the expansion mechanism includes a support rod and a wire sleeve. The outer peripheral wall of the rotating sleeve is provided with three circumferentially evenly distributed installation grooves, which are distributed along the length direction of the rotating sleeve. One end of the support rod is hingedly connected to both sides of the bottom of the installation groove. The wire sleeve is arranged on the outside of the rotating sleeve and is screwed together. The inner side of the support rod and the outer peripheral wall of the wire sleeve are against each other.

[0012] Furthermore, a resistance-increasing rubber pad is bonded to the outer side of the support rod, a magnetic attraction plate is fixedly provided on the inner side of the support rod, and a magnet sleeve is provided on the outer peripheral wall of the rotating sleeve.

[0013] Furthermore, the outer peripheral wall of the rotating sleeve is fixedly connected with a torsion rod close to the top.

[0014] Furthermore, a horizontal correction tube is fixedly connected to the top of the measuring rod.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model sets the balance board into a right-angle triangle frame structure, wherein the right-angle turning point of the balance board is rotatably connected to one side of the measuring rod. When measuring, the measuring rod is inserted into the inclined hole, and the inclined edge at the bottom of the balance board is in a horizontal state due to its own weight. By observing the position of the measuring rod on the inclined edge, the inclination angle of the inclined hole can be measured, which greatly improves the accuracy of the angle measurement of the inclined hole.

[0017] 2. The utility model provides a rotating sleeve at the bottom of the measuring rod, and an expansion mechanism is provided on the outside of the rotating sleeve. When in use, the rotating sleeve is inserted into the inclined hole, and then when the expansion mechanism is expanded, the rotating sleeve will be stably fixed in the inclined hole, thereby improving the accuracy of docking between the measuring rod and the inclined hole, and greatly improving the convenience of connecting the measuring rod and the inclined hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a mine inclined hole measuring device of the utility model;

[0019] Figure 2 for Figure 1 The main view of

[0020] Figure 3 It is a partial view of the cooperation between the rotating sleeve and the expansion mechanism of a mine inclined hole measuring device of the utility model;

[0021] In the figure: 1. Measuring rod; 2. Balance plate; 21. Positioning sleeve; 3. Support shaft; 4. Angle marking strip; 5. Rotating sleeve; 51. Mounting slot; 52. Torsion rod; 6. Indicator strip; 7. Expansion mechanism; 71. Support rod; 72. Thread sleeve; 8. Compression sleeve; 81. Handle bar; 9. Locking screw; 91. Handle; 101. Resistance-increasing rubber pad; 102. Horizontal correction tube; 103. Magnet sleeve; 104. Magnetic plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a mine inclined hole measuring device, including a measuring rod 1 and a balance plate 2. The measuring rod 1 is a component plugged into the inclined hole. A support shaft 3 is fixedly connected to one side of the measuring rod 1. The balance plate 2 is an isosceles right triangle frame plate structure. The balance plate 2 is rotatably connected to the support shaft 3 at the right-angle turning point. Specifically, the right-angle turning point of the balance plate 2 is fixedly connected to a positioning sleeve 21 sleeved on the outside of the support shaft 3, and the positioning sleeve 21 and the support shaft 3 are in clearance fit. In a natural state, since the connection position between the balance plate 2 and the support shaft 3 is located on the center line, the balance plate 2 will naturally droop due to its own weight. When it droops naturally, the inclined rod at the bottom of the balance plate 2 is in a horizontal state. The horizontal state of the inclined rod is a reference plate for angle measurement of the device.

[0024] An angle marking strip 4 is provided on one side of the hypotenuse on the balance plate 2, and the extension line of the angle marking strip will pass through the axis of the support shaft 3. An indicator strip 6 used in conjunction with the angle marking strip 4 is fixedly provided on one side of the measuring rod 1. When the angle marking strip 4 is opposite to an angle marking strip 4 on the hypotenuse, the inclination angle of the inclined hole can be directly measured through the converted reading.

[0025] A rotating sleeve 5 is provided at the bottom of the measuring rod 1. The rotating sleeve 5 is directly inserted into the inclined hole when in use. An expansion mechanism 7 is provided on the outer periphery of the rotating sleeve 5. When the expansion mechanism 7 expands, the rotating sleeve 5 and the inclined hole will be kept or approximately kept coaxial, and the rotating sleeve 5 will be firmly fixed in the inclined hole. At the same time, due to the rotational cooperation function of the rotating sleeve 5 and the measuring rod 1, the balance board 2 will be in a natural drooping state by its own weight. When drooping, the balance board 2 and the horizontal plane are in a vertical state.

[0026] Specifically, the expansion mechanism 7 includes a support rod 71 and a wire sleeve 72. The outer peripheral wall of the rotating sleeve 5 is provided with three circumferentially evenly distributed installation grooves 51, which are distributed along the length direction of the rotating sleeve 5. One end of the support rod 71 is hingedly connected to the two sides of the inner bottom of the installation groove 51. The wire sleeve 72 is sleeved on the outside of the rotating sleeve 5 and is screwed together. The inner side of the support rod 71 and the outer peripheral wall of the wire sleeve 72 are abutted against each other to control the rotation of the rotating sleeve 5. When the rotating sleeve 5 moves downward, the three support rods 71 ​​will be pushed and swung outward, and the support rods 71 ​​squeeze the inclined hole wall, so that the rotating sleeve 5 and the inclined hole are fixedly connected.

[0027] Furthermore, a resistance-enhancing rubber pad 101 is bonded to the outside of the support rod 71, and the resistance-enhancing rubber pad 101 can increase the friction between the support rod 71 and the hole wall. A magnetic plate 104 is fixedly provided on the inside of the support rod 71, and a magnet sleeve 103 is provided on the outer peripheral wall of the rotating sleeve 5. The magnetic attraction property is used to keep the support rod 71 always in contact with the rotating sleeve 5, which is convenient to carry. Among them, the outer peripheral wall of the rotating sleeve 5 is fixedly connected to a torsion rod 52 near the top, and the torsion rod 52 is an operating component for manually controlling the rotation of the rotating sleeve 5.

[0028] In this embodiment, a compression sleeve 8 used in conjunction with the positioning sleeve 21 is screwed on one end of the support shaft 3. After the compression sleeve 8 is disassembled, the balance board 2 and the measuring rod 1 can be separated for easy carrying. When the compression sleeve 8 is tightened, the balance board 2 can be fixed for easy reading. The outer peripheral wall of the compression sleeve 8 is fixedly connected to a handle 81, which is an operating component for manually driving the compression sleeve 8 to rotate.

[0029] In this embodiment, the rotating sleeve 5 is connected to the measuring rod 1 through a bearing, and a locking screw 9 near the top is screwed through the outer wall of the rotating sleeve 5. One end of the locking screw 9 is fixedly connected to the outer wall of the measuring rod 1, and the other end is fixedly connected to a handle 91. When the locking screw 9 is tightened, one end of the locking screw 9 will be lowered together with the outer wall of the measuring rod 1. At this time, the measuring rod 1 is in a stable state, and the external airflow will not drive the measuring rod 1 to rotate by blowing the balance plate 2, thereby facilitating the measurement of readings.

[0030] In this embodiment, a horizontal correction tube 102 is fixedly connected to the top of the measuring rod 1. The horizontal correction tube 102 adopts a common bubble horizontal tube structure. There is a bubble in the horizontal correction tube 102. The function of the horizontal correction tube 102 is to verify the measurement accuracy of the device. Specifically, when the measuring rod 1 is placed vertically, the bubble in the horizontal correction tube 102 is centered, and the indicator bar 6 on the measuring rod 1 and an indicator bar 6 in the middle of the upper hypotenuse of the balance board 2 overlap, which indicates that the measuring device is qualified.

[0031] When using the device, first insert the rotating sleeve 5 into the inclined hole, then screw the thread sleeve 72, the three support rods 71 ​​are pushed to swing outward, and the resistance-increasing rubber pads 101 on the outside of the support rods 71 ​​squeeze the inner wall of the inclined hole. At this time, the rotating sleeve 5 is in a state of being tightly connected with the inclined hole, and the balance board 2 naturally droops due to its own weight. Then observe which angle mark strip 4 on the inclined side of the balance board 2 the indicator strip 6 indicates, thereby directly measuring the inclination angle of the inclined hole.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mine inclined hole measuring device, comprising a measuring rod (1) and a balance plate (2), wherein one side of the measuring rod (1) is fixedly connected to a support shaft (3), characterized in that: The balance plate (2) is an isosceles right-angled triangle frame plate structure. The balance plate (2) is rotatably connected to the support shaft (3) at the right-angle turning point. An angle mark strip (4) is arranged on one side of the hypotenuse of the balance plate (2). An indicator strip (6) used in conjunction with the angle mark strip (4) is fixedly arranged on one side of the measuring rod (1). A rotating sleeve (5) is sleeved on the bottom of the measuring rod (1), and an expansion mechanism (7) is arranged on the outer periphery of the rotating sleeve (5).

2. A mine inclined hole measuring device according to claim 1, characterized in that: A positioning sleeve (21) sleeved on the outside of the support shaft (3) is fixedly connected to the right-angle turning point of the balance plate (2), and the positioning sleeve (21) and the support shaft (3) are clearance-matched.

3. A mine inclined hole measuring device according to claim 2, characterized in that: A compression sleeve (8) used in conjunction with a positioning sleeve (21) is screwed onto one end of the support shaft (3), and a handle (81) is fixedly connected to the outer peripheral wall of the compression sleeve (8).

4. A mine inclined hole measuring device according to claim 1, characterized in that: The rotating sleeve (5) is connected to the measuring rod (1) via a bearing, and a locking screw (9) near the top is screwed through the outer peripheral wall of the rotating sleeve (5), one end of the locking screw (9) is fixedly connected to the outer peripheral wall of the measuring rod (1), and the other end is fixedly connected to a handle (91).

5. A mine inclined hole measuring device according to claim 4, characterized in that: The expansion mechanism (7) comprises a support rod (71) and a thread sleeve (72); the outer peripheral wall of the rotating sleeve (5) is provided with three circumferentially evenly distributed mounting grooves (51); the mounting grooves (51) are distributed along the length direction of the rotating sleeve (5); one end of the support rod (71) is hingedly connected to both sides of the inner bottom of the mounting groove (51); the thread sleeve (72) is sleeved on the outside of the rotating sleeve (5) and is screwed together; the inner side of the support rod (71) and the outer peripheral wall of the thread sleeve (72) are against each other.

6. A mine inclined hole measuring device according to claim 5, characterized in that: A resistance-enhancing rubber pad (101) is bonded to the outer side of the support rod (71), a magnetic attraction plate (104) is fixedly arranged on the inner side of the support rod (71), and a magnet sleeve (103) is sleeved on the outer peripheral wall of the rotating sleeve (5).

7. A mine inclined hole measuring device according to claim 5, characterized in that: The outer peripheral wall of the rotating sleeve (5) is fixedly connected with a torsion rod (52) near the top.

8. The mine inclined hole measuring device according to claim 1, characterized in that: A horizontal correction tube (102) is fixedly connected to the top of the measuring rod (1).

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