Mine drilling depth measuring instrument

Abstract

A mine drilling depth measuring instrument comprises a supporting frame arranged on the side wall of a drilling hole; the equipment platform is arranged in the supporting frame; the winding mechanism is arranged on the equipment platform, and a measuring line is arranged on the winding mechanism; the measuring hammer is arranged at the bottom of the measuring line; the auxiliary sliding plate is arranged on the side wall of the measuring hammer; the telescopic rod is arranged in the center of the bottom of the measuring hammer; the bottom detection mechanism is arranged at the bottom of the telescopic rod and comprises a first motor and an obstacle removing cone; the laser range finder is arranged on the side edge of the bottom of the measuring hammer; the cleaning mechanism is arranged at the top of the drill hole, and the measuring line penetrates through the cleaning mechanism. Small stone sheets may be clamped in the drill hole in the drill hole, and the obstacle removing cone is driven by the telescopic rod to push the clamped stone sheets to obliquely fall down. After the obstacle clearing cone extends to the longest length, the bottom of the obstacle clearing cone is located below the bottom of the auxiliary sliding plate, when the obstacle clearing cone reaches the bottom of the drill hole, the measuring hammer is pushed to move up and down, meanwhile, the fan blades blow up floating ash at the bottom of the drill hole, and measured drill hole data are more accurate.

Description

Technical Field

[0001] This utility model relates to the field of depth measurement technology, and more specifically, to a drilling depth measuring instrument for mines. Background Technology

[0002] Mining borehole drilling refers to underground drilling operations in mines. When drilling reaches a certain stage, it is necessary to measure the internal depth of the borehole. Existing borehole depth measuring devices use a plumb bob that moves within the borehole. However, when minor collapses occur in the borehole, causing rock fragments to block the path, the accuracy of the measurement is affected. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a mine borehole depth measuring instrument that can remove small stone fragments and accurately measure the borehole depth.

[0004] A drilling depth measuring instrument for mines includes: a support frame disposed on the sidewall of the borehole; an equipment platform disposed inside the support frame; a winding mechanism disposed on the equipment platform, wherein a measuring line is disposed on the winding mechanism; a measuring hammer disposed at the bottom of the measuring line; an auxiliary sliding plate disposed on the sidewall of the measuring hammer; a telescopic rod disposed at the center of the bottom of the measuring hammer; a bottom probing mechanism disposed at the bottom of the telescopic rod, wherein the bottom probing mechanism includes a first motor and a clearing cone; a laser rangefinder disposed on the side of the bottom of the measuring hammer; and a cleaning mechanism disposed at the top of the borehole, wherein the measuring line passes through the cleaning mechanism.

[0005] Furthermore, the side wall of the support frame is arranged in a ring with threaded sleeves, and a support rod is screwed into the threaded sleeve. The support rod has a protrusion at the bottom and a handle at the top.

[0006] Furthermore, the winding mechanism includes a winding shaft and a second motor, the measuring wire is wound on the winding shaft, and the second motor drives the winding shaft to rotate.

[0007] Furthermore, several of the auxiliary sliding plates are arranged in a ring on the side wall of the measuring hammer, and pulleys are provided on the top and bottom outer sides of the auxiliary sliding plates.

[0008] Furthermore, the diameter of the fixed end of the telescopic rod is smaller than the diameter of the measuring hammer, the measuring hammer is housed within a storage battery, and the storage battery is electrically connected to the telescopic rod.

[0009] Furthermore, the fixed end of the first motor is located at the bottom of the telescopic rod, the obstacle clearing cone is located at the bottom of the first motor, the side wall of the obstacle clearing cone is provided with fan blades, and the first motor is electrically connected to the battery.

[0010] Furthermore, a rubber ball is fixedly attached to the fixed end of the telescopic rod, and both the telescopic end of the telescopic rod and the fixed end of the first motor are surrounded by the rubber ball, with the fan blade located below the rubber ball.

[0011] Furthermore, the side wall of the laser rangefinder is fixedly connected to the inner wall of an auxiliary sliding plate, and a display screen is provided on the equipment platform, the display screen being connected to the laser rangefinder for signal transmission.

[0012] Furthermore, the cleaning mechanism includes a positioning sleeve, a rotating shaft, two brush plates, a spring, a reaction plate, and an adjusting rod. The measuring line passes through the two brush plates. The rotating shaft is located on the top of the positioning sleeve. The brush plates are rotatably connected to the rotating shaft. The reaction plate is located on the outside of the brush plates. The spring connects the brush plates and the reaction plate. The adjusting rod is screwed to the reaction plate.

[0013] Furthermore, the positioning sleeve is provided with a connecting frame, which is slidably connected to the equipment platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] ① Small stone fragments may get stuck in the borehole. A telescopic rod drives a clearing cone to push the stuck fragments downwards. A primary motor drives the clearing cone and fan blades to rotate, causing the fan blades to shake and break the stone fragments. When the clearing cone is fully extended, its bottom is below the bottom of the auxiliary slide plate. When the clearing cone reaches the bottom of the borehole, it pushes the measuring hammer up and down, while the fan blades blow away loose dust from the bottom of the borehole, making the measured borehole data more accurate. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a mine borehole depth measuring instrument.

[0018] Figure 2 This is a schematic diagram from another perspective of a mine borehole depth measuring instrument.

[0019] Figure 3 This is a schematic diagram of a portion of the perspective in a mine borehole depth measuring instrument.

[0020] In the diagram: 1. Support frame; 11. Threaded sleeve; 12. Support rod; 13. Spike; 14. Rotary handle; 2. Equipment platform; 21. Display screen; 3. Winding mechanism; 31. Winding shaft; 32. Second motor; 4. Measuring line; 5. Measuring hammer; 51. Laser rangefinder; 6. Auxiliary slide plate; 61. Pulley; 7. Telescopic rod; 71. Rubber ball; 8. Bottom probing mechanism; 81. First motor; 82. Clearing cone; 83. Fan blade; 9. Cleaning mechanism; 91. Positioning sleeve; 911. Connecting frame; 92. Rotary shaft; 93. Brush plate; 94. Spring; 95. Reaction plate; 96. Adjusting rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-3 As shown, a mine borehole depth measuring instrument includes: a support frame 1 mounted on the side wall of the borehole; an equipment platform 2 located inside the support frame 1; a winding mechanism 3 mounted on the equipment platform 2, with a measuring line 4 mounted on the winding mechanism 3; a measuring hammer 5 located at the bottom of the measuring line 4; an auxiliary sliding plate 6 located on the side wall of the measuring hammer 5; a telescopic rod 7 located at the center of the bottom of the measuring hammer 5; a bottom probing mechanism 8 located at the bottom of the telescopic rod 7, the bottom probing mechanism 8 including a first motor 81 and a clearing cone 82; a laser rangefinder 51 located on the side of the bottom of the measuring hammer 5; and a cleaning mechanism 9 located at the top of the borehole, through which the measuring line 4 passes.

[0023] The support frame 1 has a ring array of threaded sleeves 11 on its side wall. A support rod 12 is screwed into each threaded sleeve 11. The support rod 12 has a protrusion 13 at its bottom and a handle 14 at its top. When drilling in a mine, the borehole may be located on an inclined slope. In this case, the support frame 1 still needs to be kept horizontal. By rotating the handle 14, the support rod 12 is moved along the threaded sleeve 11, thereby adjusting the support height of the support frame 1 so that the support frame 1 can remain horizontal on the slope. The protrusion 13 can make the bottom of the support rod 12 more firmly contact the mountain and reduce slippage.

[0024] The winding mechanism 3 includes a winding shaft 31 and a second motor 32. The measuring wire 4 is wound around the winding shaft 31, and the second motor 32 drives the winding shaft 31 to rotate. The second motor 32 is activated to perform measurements when winding and unwinding the measuring wire 4. The measuring wire 4 is equipped with a scale, which can be used to read the value of the drilling depth. At the same time, the data is compared with the data from the laser rangefinder 51 for data verification.

[0025] Several auxiliary sliding plates 6 are arranged in a ring on the side wall of the measuring hammer 5. Each auxiliary sliding plate 6 has a pulley 61 at its top and bottom outer sides. The auxiliary sliding plates 6 prevent the bottom-probing mechanism 8 and the telescopic rod 7 from colliding with the borehole wall during the probing process. When the auxiliary sliding plate 6 collides with the borehole wall, the pulleys 61 move along the borehole wall, reducing friction between the auxiliary sliding plate 6 and the borehole wall. When the auxiliary sliding plate 6 moves to the bottom of the borehole, it supports the device, preventing the laser rangefinder 51 from colliding with the bottom of the borehole.

[0026] The diameter of the fixed end of the telescopic rod 7 is smaller than the diameter of the measuring hammer 5. The measuring hammer 5 contains a battery, which is electrically connected to the telescopic rod 7. A switch is provided on the measuring hammer 5. Turning on the switch activates the telescopic rod 7, causing the telescopic end of the telescopic rod 7 to start working, which in turn causes the first motor 81 and the obstacle clearing cone 82 to extend and retract.

[0027] The fixed end of the first motor 81 is located at the bottom of the telescopic rod 7, and the clearing cone 82 is located at the bottom of the first motor 81. The side wall of the clearing cone 82 is equipped with a fan blade 83. The first motor 81 is electrically connected to the battery, and the switch also controls the start and stop of the first motor 81. Small stone fragments may get stuck in the borehole. The telescopic rod 7 drives the clearing cone 82 to push the stuck stone fragments downwards. The first motor 81 drives the clearing cone 82 and the fan blade 83 to rotate, and the fan blade 83 shakes and breaks the stone fragments during rotation. When the clearing cone 82 is extended to its maximum length, its bottom is located below the bottom of the auxiliary slide plate 6. When the clearing cone 82 reaches the bottom of the borehole, it pushes the measuring hammer 5 up and down, while the fan blade 83 blows up the floating dust at the bottom of the borehole, making the measured borehole data more accurate.

[0028] A rubber ball 71 is fixedly attached to the fixed end of the telescopic rod 7. Both the telescopic end of the telescopic rod 7 and the fixed end of the first motor 81 are surrounded by the rubber ball 71, and the fan blade 83 is located below the rubber ball 71. The rubber ball 71 further prevents the first motor 81 and the telescopic end of the telescopic rod 7 from being impacted, and at the same time reduces the probability of stone particles affecting the operation of the machine.

[0029] The side wall of the laser rangefinder 51 is fixedly connected to the inner wall of an auxiliary sliding plate 6. A display screen 21 is provided on the equipment platform 2, and the display screen 21 is connected to the laser rangefinder 51 via signal. The display screen 21 can show the distance between the laser rangefinder 51 and the bottom of the hole. When the distance to the bottom of the hole is approaching, the moving speed of the measuring rope can be reduced.

[0030] The cleaning mechanism 9 is used to clean the measuring hammer 5 when it is lifted. The cleaning mechanism 9 includes a positioning sleeve 91, a rotating shaft 92, two brush plates 93, a spring 94, a reaction plate 95, and an adjusting rod 96. The measuring line 4 passes through the two brush plates 93. The rotating shaft 92 is provided with the top of the positioning sleeve 91. The brush plates 93 are rotatably connected to the rotating shaft 92. The reaction plate 95 is provided on the outside of the brush plates 93. The spring 94 connects the brush plates 93 and the reaction plate 95. The adjusting rod 96 is screwed to the reaction plate 95. The front end of the adjusting rod 96 contacts the side wall of the brush plate 93. When releasing the measuring line 4, the adjusting rod 96 is turned backward, and the spring 94 pulls the brush plate 93 to move towards the reaction plate 95, so that the brush plate 93 does not contact the measuring line 4, and the measuring hammer 5 moves towards the bottom of the hole under its own weight; when retracting the measuring line 4, the adjusting rod 96 is turned to push the brush plate 93 to clamp the measuring line 4, and the brush plate 93 cleans the dust in the measuring line 4 as the measuring line 4 passes.

[0031] The positioning sleeve 91 is provided with a connecting frame 911, which is slidably connected to the equipment platform 2. Above the connecting frame 911 is a crossbar, which is located above the equipment platform 2 to prevent the positioning sleeve 91 from being lost. The positioning sleeve 91 is fitted onto the orifice so that the measuring line 4 contacts the positioning sleeve 91, preventing the edge of the orifice from quickly wearing down the measuring line 4.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mine hole depth measuring instrument, characterized by, include: A support frame (1) is installed on the side wall of the borehole; The equipment platform (2) is located inside the support frame (1); A winding mechanism (3) is provided on the equipment platform (2), and a measuring line (4) is provided on the winding mechanism (3); A measuring hammer (5) is placed at the bottom of the measuring line (4); An auxiliary sliding plate (6) is provided on the side wall of the measuring hammer (5); A telescopic rod (7) is located at the center of the bottom of the measuring hammer (5); A bottom-probing mechanism (8) is provided at the bottom of the telescopic rod (7), the bottom-probing mechanism (8) includes a first motor (81) and a clearing cone (82); A laser rangefinder (51) is located on the bottom side of the measuring hammer (5); and A cleaning mechanism (9) is located at the top of the borehole, through which the measuring line (4) passes.

2. A mine borehole depth measuring instrument according to claim 1, characterised in that: The support frame (1) has a ring array of threaded sleeves (11) on its side wall. A support rod (12) is screwed into the threaded sleeve (11). The support rod (12) has a protrusion (13) at its bottom and a handle (14) at its top.

3. A mine borehole depth measuring instrument according to claim 2, characterised in that: The winding mechanism (3) includes a winding shaft (31) and a second motor (32). The measuring wire (4) is wound on the winding shaft (31), and the second motor (32) drives the winding shaft (31) to rotate.

4. A mine borehole depth measuring instrument according to claim 3, characterised in that: A plurality of the auxiliary slide plates (6) are arranged in a ring on the side wall of the measuring hammer (5), and pulleys (61) are provided on the top and bottom outer sides of the auxiliary slide plates (6).

5. A mine hole depth measuring instrument according to claim 4, characterised in that: The diameter of the fixed end of the telescopic rod (7) is smaller than the diameter of the measuring hammer (5). The measuring hammer (5) is housed in a storage battery, which is electrically connected to the telescopic rod (7).

6. A mine hole depth measuring instrument according to claim 5, characterized in that: The fixed end of the first motor (81) is located at the bottom of the telescopic rod (7), the obstacle clearing cone (82) is located at the bottom of the first motor (81), the side wall of the obstacle clearing cone (82) is provided with fan blades (83), and the first motor (81) is electrically connected to the storage battery.

7. A mine hole depth measuring instrument according to claim 6, characterised in that: A rubber ball (71) is fixedly attached to the fixed end of the telescopic rod (7). The telescopic end of the telescopic rod (7) and the fixed end of the first motor (81) are both surrounded by the rubber ball (71). The fan blade (83) is located below the rubber ball (71).

8. A mine hole depth measuring instrument according to claim 7, characterised in that: The side wall of the laser rangefinder (51) is fixedly connected to the inner wall of an auxiliary sliding plate (6). The equipment platform (2) is provided with a display screen (21), and the display screen (21) is connected to the laser rangefinder (51) via signal.

9. A mine hole depth measuring instrument according to claim 8, characterised in that: The cleaning mechanism (9) includes a positioning sleeve (91), a rotating shaft (92), two brush plates (93), a spring (94), a reaction plate (95), and an adjusting rod (96). The measuring line (4) passes through the two brush plates (93). The rotating shaft (92) is located on the top of the positioning sleeve (91). The brush plates (93) are rotatably connected to the rotating shaft (92). The reaction plate (95) is located on the outside of the brush plates (93). The spring (94) connects the brush plates (93) and the reaction plate (95). The adjusting rod (96) is screwed to the reaction plate (95).

10. A mine borehole depth measuring instrument according to claim 9, characterized in that: The positioning sleeve (91) is provided with a connecting frame (911), which is slidably connected to the equipment platform (2).

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