A depth measuring device for mining engineering

Abstract

A depth measuring device for mining engineering belongs to the technical field of mining engineering. In order to solve the problem that the measuring rope is easily deflected by gravity and the surface of the debris layer at the bottom of the blasthole is easily misjudged as the real bottom of the hole, resulting in measurement data deviation, in the present invention, one end of the electric measuring rod is connected to one end of the frame plate, the sensor is electrically connected to the electric measuring rod, and a soil compaction probe is fixedly installed on one end of the electric measuring rod. A first contact plate is rotatably connected to the top of the frame plate, and the first contact plate is slidably engaged with an elastic seat, and a second contact plate is rotatably connected to the bottom of the frame plate, and the second contact plate is slidably engaged with the elastic seat. The length of the first contact plate is greater than that of the second contact plate. Two elastic parts are fixedly installed inside the frame plate, and the two elastic parts are fixedly connected to the first contact plate and the second contact plate. The present invention makes the measuring rope taut, and the soil compaction probe can distinguish between loose rock chips and bedrock through resistance mutation detection, so as to more accurately measure the actual depth of the blasthole.

Description

Technical Field

[0001] The present invention relates to the technical field of mining engineering, in particular to a depth measuring device for mining engineering. Background Art

[0002] Mining is the technology and science of extracting mineral resources from within or on the Earth's surface. To achieve precise, controlled crushing and separation of rock or ore, drilling equipment is used to create blastholes in the rock to assist in blasting. Blastholes improve mining efficiency and reduce subsequent crushing and excavation workload. Blasthole depth varies depending on the specific application scenario and blasting requirements. Blastholes can be categorized by their spatial orientation: vertical, inclined, and parallel.

[0003] Chinese patent CN222184750U discloses a depth measurement device for mining engineering, including a base and a connecting plate slidably mounted on the base, a first limit block mounted on the bottom of the connecting plate, a friction pad mounted on the first limit block, a limit plate slidably mounted on the base, a plurality of plug blocks mounted on the limit plate, a slot provided on the connecting plate for cooperating with the plug blocks, a measuring ruler slidably mounted on the base, a scale bar provided on the measuring ruler, and a limit mechanism slidably mounted on the base. This utility model slidably connects the connecting plate to the base, fits the first limit block against the inner wall of the blasthole, and the sliding limit plate inserts the plug block into the slot, limiting the sliding first limit block, thereby limiting the base, preventing the base from sliding during measurement and affecting the measurement effect. The friction pad can be provided to increase the friction of the first limit block.

[0004] Chinese patent CN222084487U discloses a blasthole depth measuring device for mining blasting, including a mounting mechanism, the mounting mechanism including a top plate, a mirror-image mounting side plate on the bottom surface of the top plate, a mounting area formed between the mounting side plates, a measuring mechanism provided inside the mounting area, a measuring assembly provided at the end of the measuring mechanism for measuring the blasthole depth, and a cleaning mechanism provided on the side of the measuring mechanism for cleaning the measuring mechanism; the measuring mechanism includes a rotating shaft, a measuring rope, a rotating disk, and a motor, and the rotating shaft is provided on the inner side of the mounting area end A. The utility model can control the measurement assembly to rise and fall in the blasthole under the rotation of the rotating shaft through the measuring rope. After the measurement assembly reaches the bottom, the measuring rope stops descending, and the depth can be quickly determined through the measuring assembly. After the measurement is completed, the measuring rope can be quickly retracted under the drive of the motor, and the cleaning assembly filters and scrapes away debris on the rope body, thereby accurately measuring the hole depth and improving the blasting effect.

[0005] The above-mentioned prior art measures the depth of the blasthole by slidingly connecting the measuring ruler with the base. The scale bar is set to facilitate observation of the measurement value. After the measuring rope and the measuring assembly fall to the bottom, the measuring rope stops falling, and the depth can be quickly obtained through the measuring assembly to accurately measure the hole depth. However, in the above-mentioned prior art, since the blasthole is divided into three types of channel structures, namely vertical holes, inclined holes and parallel holes, the measuring ruler and the measuring rope are easily affected by gravity and deflected, which can easily lead to errors in the blasthole depth measurement. Secondly, the rock debris generated during the drilling process forms a loose layer at the bottom of the hole due to the action of gravity, forming a "false hole bottom". The contact measuring tool will mistakenly judge the surface of the debris layer as the real hole bottom, resulting in measurement data deviation. Summary of the Invention

[0006] The purpose of the present invention is to provide a depth measuring device for mining engineering. The device can be used to measure the depth of blastholes at different angles and improve the accuracy of measuring the true bottom of the blasthole, thereby solving the problem in the above background that the measuring ruler and measuring rope are easily affected by gravity and deflected, which easily leads to errors in the blasthole depth measurement, and the surface of the debris layer at the bottom of the blasthole is easily misjudged as the true bottom of the hole, resulting in measurement data deviation.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: A depth measuring device for mining engineering, comprising a winding member and a measuring rope wound on the surface of the winding member, wherein one end of the measuring rope is fixedly connected to a frame plate, drive wheels are fixedly installed on both sides of the frame plate, a sensor is fixedly installed on one side of the frame plate, and the sensors are both electrically connected to the winding member and the drive wheels, a support plate is fixedly connected inside the frame plate, elastic seats are slidably connected to both sides of the frame plate, a pushing frame is slidably connected to the surface of the support plate, and the pushing frame is slidably connected to the frame plate, and each pushing frame is fixedly connected to the two elastic seats, an electric measuring rod is fixedly installed inside the frame plate, and one end of the electric measuring rod passes through and is connected to one end of the frame plate, the sensor is electrically connected to the electric measuring rod, and a soil compaction probe is fixedly installed on one end of the electric measuring rod, a first contact plate is rotatably connected above the frame plate, and the first contact plate is slidably engaged with the elastic seat, a second contact plate is rotatably connected below the frame plate, and the second contact plate is slidably engaged with the elastic seat, the first contact plate is longer than the second contact plate, and two elastic members are fixedly installed inside the frame plate, and the two elastic members are both fixedly connected to the first contact plate and the second contact plate.

[0008] Furthermore, the winding member includes a box body and a fixed frame fixed on one side of the box body, a first motor is fixedly installed on one side of the fixed frame, a winding roller is rotatably connected inside the box body, and the winding roller is fixedly connected to the output end of the first motor, the measuring rope is wrapped around the surface of the winding roller, and a handle is fixedly installed on one side of the box body.

[0009] Furthermore, rotating seats are fixedly installed on corresponding sides of the frame plate, and the first contact plate and the second contact plate are both rotatably connected to the rotating seats.

[0010] Furthermore, the driving wheel includes a connecting shell and a second motor fixed inside the connecting shell. The output end of the second motor is fixedly connected to the arc wheel, and a plurality of grooves of different sizes are opened on the surface of the arc wheel.

[0011] Furthermore, a linear groove is provided on one side of the interior of the support plate, and an arc-shaped groove is provided on one side of the interior of the support plate, and the linear groove is connected to the arc-shaped groove.

[0012] Furthermore, the elastic seat includes a fixed block and a through hole extending through the fixed block, a cylinder is rotatably connected inside the through hole, a torsion spring is fixedly connected to one end of the cylinder, and one end of the torsion spring is fixedly connected to the fixed block, a slider is fixedly installed on one side of the fixed block, and the slider is slidably connected to the frame plate, and a plurality of chamfered grooves are provided at one end of the cylinder, which can provide elastic force through the torsion spring.

[0013] Furthermore, the pushing frame includes a movable plate and a limit plate hinged on one side of the movable plate, the limit plate is slidably connected to the support plate, one side of the limit plate is fixedly connected to a limit rod, the limit rods are slidably connected to the linear groove and the arc groove, one side of the movable plate is rotatably connected to a rotating rod, one end of the rotating rod is rotatably connected to an L-shaped plate, one side of the L-shaped plate is fixedly connected to a horizontal plate, and the horizontal plate is slidably connected to the support plate, one side of the L-shaped plate is fixedly connected to a vertical plate, one side of the vertical plate is fixedly connected to two push rods, and the two push rods are fixedly connected to the slider.

[0014] Furthermore, the electric measuring rod includes a hydraulic cylinder and an insertion rod fixed to the output end of the hydraulic cylinder. The insertion rod is connected to one side of the frame plate. A flange is fixedly installed on the surface of the insertion rod, and the flange is in contact with the limit plate.

[0015] Furthermore, a rotating shaft is fixedly installed on both sides of the first contact plate and the second contact plate, a disc is fixedly installed on one end of the rotating shaft, and a plurality of V-shaped chamfers matching the chamfer grooves are evenly installed on the surface of the disc, and the V-shaped chamfers are slidably connected to the chamfer grooves.

[0016] Furthermore, the elastic member includes a connecting frame and a rubber band fixed on the connecting frame, and the rubber band is fixedly connected to the first contact plate and the second contact plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The driving wheel drives the measuring rope to move into the blasthole. When the sensor contacts the bottom of the blasthole or the loose layer of rock debris accumulated at the bottom of the blasthole, the winding piece reels the measuring rope, and the driving wheel moves a short distance toward the reel. The first contact plate and the second contact plate are in close contact with the inner wall of the blasthole to increase the friction, so that the measuring rope can be tightened. At this time, the electric measuring rod pushes the soil compaction probe to move. The soil compaction probe can distinguish between loose rock debris and bedrock through resistance mutation detection, so it can measure the actual depth of the blasthole more accurately. Therefore, according to the length of the measuring rope moved into the blasthole, the length of the frame plate, the actual length of the electric measuring rod extending from the inside of the frame plate and the length of the soil compaction probe, the actual depth of the blasthole can be measured, thereby improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic diagram of the driving wheel structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the winding structure of the present invention;

[0022] Figure 4 This is a schematic structural diagram of the electric measuring rod of the present invention;

[0023] Figure 5 This is a schematic diagram of a structure in which the first contact plate and the second contact plate of the present invention are freed from the clamping connection;

[0024] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at A in the middle;

[0025] Figure 7 It is a schematic diagram of the elastic seat structure of the present invention;

[0026] Figure 8 For the present invention Figure 5 Schematic diagram of the structure at B in the middle;

[0027] Figure 9 is a schematic structural diagram of the first contact plate of the present invention;

[0028] Figure 10 It is a schematic structural diagram of the elastic member of the present invention;

[0029] Figure 11 Schematic diagram of the different form conversion structure of the first contact plate and the second contact plate of the present invention;

[0030] Figure 12 It is a schematic structural diagram of the device flow chart of the present invention.

[0031] Figure: 1, winding member; 11, box; 12, fixed frame; 13, first motor; 14, winding roller; 15, handle; 2, measuring rope; 3, frame; 31, rotating seat; 4, driving wheel; 41, connecting shell; 42, second motor; 43, arc wheel; 44, groove; 5, sensor; 6, support plate; 61, linear groove; 62, arc groove; 7, elastic seat; 71, fixing block; 72, through hole; 73, cylinder; 74, torsion spring; 75, slider; 76, inverted Angle groove; 8. Push frame; 81. Moving plate; 82. Limiting plate; 83. Limiting rod; 84. Rotating rod; 85. L-shaped plate; 86. Horizontal plate; 87. Vertical plate; 88. Push rod; 9. Electric measuring rod; 91. Hydraulic cylinder; 92. Insert rod; 93. Flange; 10. Soil compaction probe; 20. First contact plate; 201. Rotating shaft; 202. Disc; 203. V-shaped chamfer; 30. Second contact plate; 40. Elastic member; 401. Connecting frame; 402. Rubber band. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In order to solve the technical problems that the measuring rope 2 is easily deflected by gravity and the surface of the debris layer at the bottom of the blasthole is misjudged as the real hole bottom, resulting in measurement data deviation, such as Figures 1-4 、 Figure 11 and Figure 12 As shown, the following preferred technical solutions are provided:

[0034] A depth measuring device for mining engineering includes a winding member 1 and a measuring rope 2 wound on the surface of the winding member 1. One end of the measuring rope 2 is fixedly connected to a frame plate 3. A controller is provided inside the frame plate 3 (the controller belongs to the existing technology and is not shown in the figure). The controller is used to regulate the orderly operation of various components. Driving wheels 4 are fixedly installed on both sides of the frame plate 3. The driving wheels 4 can provide power and can move inside the blasthole, thereby driving the measuring rope 2 to measure the depth of the blasthole. A sensor 5 is fixedly installed on one side of the frame plate 3. The sensors 5 are electrically connected to the winding member 1 and the driving wheel 4. When the frame plate 3 contacts the bottom of the blasthole or the loose layer of rock debris accumulated at the bottom of the blasthole, the driving wheel 4 stops rotating through the sensor 5, and the winding member 1 reels and tightens the measuring rope 2.

[0035] A support plate 6 is fixedly connected to the inside of the frame plate 3, which can play a supporting role. Elastic seats 7 are slidably connected to both sides of the frame plate 3. A pushing frame 8 is slidably connected to the surface of the support plate 6, and the pushing frame 8 is slidably connected to the frame plate 3. The pushing frame 8 is fixedly connected to the two elastic seats 7, and the pushing frame 8 can drive the two elastic seats 7 to move on the frame plate 3. An electric measuring rod 9 is fixedly installed inside the frame plate 3, and one end of the electric measuring rod 9 is connected to one end of the frame plate 3. The sensor 5 is electrically connected to the electric measuring rod 9. A soil compaction probe 10 is fixedly installed on one end of the electric measuring rod 9. When the probe is inserted into the soil, the soil resistance acts on the tip of the probe, and the mechanical pressure is converted into an electrical signal through a built-in pressure sensor (such as a resistance strain gauge or a piezoelectric element), and then the compaction value is calculated. A photoelectric sensor or an ultrasonic ranging sensor is used to detect obstacles (such as debris accumulation). When the sensor 5 contacts the bottom of the blasthole or the loose layer of rock debris accumulation at the bottom of the blasthole, the electric measuring rod 9 pushes the soil compaction probe 10 to move and pushes the pushing frame 8 to move. The soil compaction probe 10 can distinguish loose rock debris from bedrock through resistance mutation detection, so it can more accurately measure the actual depth of the blasthole. A first contact plate 20 is rotatably connected to the top of the frame plate 3, and the first contact plate 20 is slidably engaged with the elastic seat 7. A second contact plate 30 is rotatably connected to the bottom of the frame plate 3, and the second contact plate 30 is slidably engaged with the elastic seat 7. The length of the first contact plate 20 is greater than that of the second contact plate 30. First, the inclination angles of the first contact plate 20 and the second contact plate 30 are adjusted according to the interior of the blasthole so that the second contact plate 30 contacts the lower surface of the blasthole, which can support the frame plate 3 and prevent the frame plate 3 from rotating. The first contact plate 20 can push the frame plate 3 so that the drive wheel 4 is always in contact with the inner wall of the blasthole.

[0036] When the winding member 1 winds up the measuring rope 2, the driving wheel 4 moves a short distance toward the winding member 1, and the first contact plate 20 and the second contact plate 30 are in close contact with the inner wall of the blast hole to increase the friction, which can make the measuring rope 2 taut and improve the accuracy of the blast hole depth measurement. Two elastic members 40 are fixedly installed inside the frame plate 3, and the two elastic members 40 are fixedly connected to the first contact plate 20 and the second contact plate 30. When the measurement is completed, the electric measuring rod 9 pushes the pushing frame 8 to move when it moves, so that the two elastic seats 7 are uncoupled from the first contact plate 20 and the second contact plate 30. At this time, due to the friction, the first contact plate 20 and the second contact plate 30 will not flip over. After the electric measuring rod 9 shrinks, it moves forward a short distance through the driving wheel 4. The elastic force of the elastic member 40 makes the first contact plate 20 and the second contact plate 30 contact with the frame plate 3 to flip over, and they can be moved out.

[0037] Specifically, first, the inclination angle of the first contact plate 20 and the second contact plate 30 is adjusted according to the inside of the blasthole, so that the second contact plate 30 contacts the lower surface of the blasthole, which can play the role of supporting the frame plate 3 and prevent the frame plate 3 from rotating. The first contact plate 20 can push the frame plate 3 so that the driving wheel 4 is always in contact with the inner wall of the blasthole. When the winding member 1 reels the measuring rope 2, the driving wheel 4 moves a short distance toward the winding member 1. The first contact plate 20 and the second contact plate 30 are in close contact with the inner wall of the blasthole to increase the friction force, which can make the measuring rope 2 taut. When the sensor 5 contacts the bottom of the blasthole or the loose layer of rock debris accumulated at the bottom of the blasthole, the electric measuring rod 9 pushes the soil compaction probe 10 to move, and pushes the pushing frame 8 to move. The soil compaction probe 10 can distinguish loose soil by detecting the sudden change in resistance. The rock cuttings and bedrock can be measured more accurately, so the actual depth of the blasthole can be measured more accurately. Therefore, according to the length of the measuring rope 2 moved into the blasthole, the length of the frame plate 3, the actual length of the electric measuring rod 9 extended from the inside of the frame plate 3 and the length of the soil compaction probe 10, the actual depth of the blasthole can be measured, thereby improving the measurement accuracy. When the measurement is completed, the electric measuring rod 9 will push the pushing frame 8 to move when it moves, so that the two elastic seats 7 are uncoupled from the first contact plate 20 and the second contact plate 30. At this time, due to the friction force, the first contact plate 20 and the second contact plate 30 will not flip over. After the electric measuring rod 9 shrinks, it moves forward a short distance through the driving wheel 4. The elastic force of the elastic member 40 makes the first contact plate 20 and the second contact plate 30 contact with the frame plate 3 to realize flipping, so that they can be moved out and the space area can be reduced.

[0038] The winding member 1 includes a box body 11 and a fixing frame 12 fixed to one side of the box body 11. A first motor 13 is fixedly installed on one side of the fixing frame 12. A winding roller 14 is rotatably connected inside the box body 11, and the winding roller 14 is fixedly connected to the output end of the first motor 13. The measuring rope 2 is wound around the surface of the winding roller 14. A handle 15 is fixedly installed on one side of the box body 11. The winding roller 14 can be driven to rotate by the first motor 13. The winding roller 14 can be used to wind up the measuring rope 2, which is convenient for depth measurement next time, and the handle 15 can be used for easy carrying.

[0039] Rotating seats 31 are fixedly installed on both sides of the frame plate 3. The first contact plate 20 and the second contact plate 30 are both rotatably connected to the rotating seats 31. The rotating seats 31 can serve as a connection to facilitate the rotation of the first contact plate 20 and the second contact plate 30.

[0040] The driving wheel 4 includes a connecting shell 41 and a second motor 42 fixed inside the connecting shell 41. The output end of the second motor 42 is fixedly connected to an arc wheel 43. A plurality of grooves 44 of different sizes are provided on the surface of the arc wheel 43. The two arc wheels 43 are driven to rotate at the same time by the two second motors 42. The arc wheels 43 can drive the frame plate 3 to move inside the blast hole. The provision of the grooves 44 can better wrap the protrusions inside the blast hole.

[0041] In order to solve the technical problems of inconvenience in adjusting according to different blasthole diameters and low applicability, such as Figure 4-Figure 9 As shown, the following preferred technical solution is provided: a straight groove 61 is opened on one side of the inner part of the support plate 6, and a circular arc groove 62 is opened on one side of the inner part of the support plate 6, and the straight groove 61 is connected to the circular arc groove 62, and the straight groove 61 and the circular arc groove 62 can play a limiting role.

[0042] The elastic seat 7 includes a fixed block 71 and a through hole 72 that runs through the inside of the fixed block 71. A cylinder 73 is rotatably connected inside the through hole 72. A torsion spring 74 is fixedly connected to one end of the cylinder 73, and one end of the torsion spring 74 is fixedly connected to the fixed block 71. A slider 75 is fixedly installed on one side of the fixed block 71, and the slider 75 is slidably connected to the frame plate 3. A plurality of chamfered grooves 76 are provided at one end of the cylinder 73, which can provide elastic force through the torsion spring 74, and the provision of a plurality of chamfered grooves 76 can play a connecting role.

[0043] The pushing frame 8 includes a moving plate 81 and a limiting plate 82 hinged on one side of the moving plate 81, the limiting plate 82 is slidably connected to the support plate 6, and one side of the limiting plate 82 is fixedly connected to a limiting rod 83, and the limiting rod 83 is slidably connected to the linear groove 61 and the arc groove 62. One side of the moving plate 81 is rotatably connected to a rotating rod 84, and one end of the rotating rod 84 is rotatably connected to an L-shaped plate 85, and one side of the L-shaped plate 85 is fixedly connected to a horizontal plate 86, and the horizontal plate 86 is slidably connected to the support plate 6, and one side of the L-shaped plate 85 is fixedly connected to a vertical plate 87, and one side of the vertical plate 87 is fixedly connected to two push rods 88, and the two push rods 88 are It is fixedly connected to the slider 75. When the limit plate 82 is pushed, the limit plate 82 will move due to the limitation of the linear groove 61, thereby driving the movable plate 81 to move. By pushing the rotating rod 84, the L-shaped plate 85 can push the vertical plate 87 and the push rod 88 to move, thereby pushing the two sliders 75 and the cylinder 73 to move until the movement of the limit rod 83 is limited by the arc groove 62, so that it moves upward, causing the limit plate 82 to flip over. The friction between the limit rod 83 and the arc groove 62 is large, which prevents the limit plate 82 from automatically flipping over due to gravity.

[0044] The electric measuring rod 9 includes a hydraulic cylinder 91 and an insertion rod 92 fixed at the output end of the hydraulic cylinder 91. The insertion rod 92 is connected to one side of the frame plate 3. A flange 93 is fixedly installed on the surface of the insertion rod 92, and the flange 93 is in contact with the limit plate 82. The hydraulic cylinder 91 can drive the insertion rod 92 to move, and the soil compaction probe 10 is driven to move by the insertion rod 92. At the same time, the flange 93 can push the limit plate 82 to move. The soil compaction probe 10 can distinguish between loose rock chips and bedrock through resistance mutation detection.

[0045] The first contact plate 20 and the second contact plate 30 are both fixedly mounted with a rotating shaft 201 on both sides, and a disc 202 is fixedly mounted on one end of the rotating shaft 201. The surface of the disc 202 is evenly mounted with a plurality of V-shaped chamfers 203 that match the chamfer groove 76, and the V-shaped chamfers 203 are slidably connected with the chamfer groove 76. By separating the V-shaped chamfers 203 from the chamfer groove 76, the first contact plate 20 and the second contact plate 30 can be canceled from being fixed, and by rotating the first contact plate 20 and the second contact plate 30 and then sliding the V-shaped chamfers 203 into the chamfer groove 76, the first contact plate 20 and the second contact plate 30 can be fixed. 6, the inclination angle of the first contact plate 20 and the second contact plate 30 can be adjusted. When the V-shaped chamfer 203 slides into the chamfer groove 76, the torsion spring 74 can provide elastic force to the first contact plate 20 and the second contact plate 30. Secondly, the elastic force of the first contact plate 20 is greater than that of the second contact plate 30. By adjusting the inclination angle of the first contact plate 20 and the second contact plate 30, it can be applied to blastholes of different diameters. The probe diameter of conventional measuring tools is fixed. A probe that is too small is prone to swing when measuring inclined blastholes, resulting in reading deviation.

[0046] In order to solve the technical problem that the mechanical resistance generated when the blast hole inner wall is easily contacted after the measurement, and it is not convenient to remove it quickly, such as Figure 10 As shown, the following preferred technical solutions are provided: the elastic member 40 includes a connecting frame 401 and a rubber band 402 fixed on the connecting frame 401, and the rubber band 402 is fixedly connected to the first contact plate 20 and the second contact plate 30. When the V-shaped chamfer 203 is separated from the chamfer groove 76, the elastic force of the rubber band 402 can make the first contact plate 20 and the second contact plate 30 flipped to be flush with the frame plate 3, which can reduce the occupied area and facilitate the separation of the first contact plate 20 and the second contact plate 30 from the inner wall of the blast hole. The elasticity of the rubber band 402 enables the first contact plate 20 and the second contact plate 30 to automatically fold when they are separated from the inner wall of the blast hole, reducing mechanical resistance and facilitating quick removal. The elastic force of the rubber band 402 is relatively large, which prevents the first contact plate 20 and the second contact plate 30 from being loosely fitted due to insufficient elastic force.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A depth measuring device for mining engineering, comprising a winding member (1) and a measuring rope (2) wound on the surface of the winding member (1), characterized in that: One end of the measuring rope (2) is fixedly connected to a frame plate (3), driving wheels (4) are fixedly installed on both sides of the frame plate (3), a sensor (5) is fixedly installed on one side of the frame plate (3), and the sensors (5) are electrically connected to the winding member (1) and the driving wheel (4), the frame plate (3) is fixedly connected to a support plate (6) inside, and elastic seats (7) are slidably connected to both sides of the frame plate (3), a push frame (8) is slidably connected to the surface of the support plate (6), and the push frame (8) is slidably connected to the frame plate (3), and the push frame (8) is fixedly connected to the two elastic seats (7), an electric measuring rod (9) is fixedly installed inside the frame plate (3), and one end of the electric measuring rod (9) is connected to the frame plate (3) at one end, the sensor (5) is electrically connected to the electric measuring rod (9), and a soil compaction probe (10) is fixedly installed at one end of the electric measuring rod (9); a first contact plate (20) is rotatably connected to the upper portion of the frame plate (3), and the first contact plate (20) is slidably engaged with the elastic seat (7); a second contact plate (30) is rotatably connected to the lower portion of the frame plate (3), and the second contact plate (30) is slidably engaged with the elastic seat (7); the length of the first contact plate (20) is greater than that of the second contact plate (30); two elastic members (40) are fixedly installed inside the frame plate (3), and the two elastic members (40) are fixedly connected to the first contact plate (20) and the second contact plate (30); The driving wheel (4) comprises a connecting shell (41) and a second motor (42) fixed inside the connecting shell (41); an output end of the second motor (42) is fixedly connected to a circular arc wheel (43); and a surface of the circular arc wheel (43) is provided with a plurality of grooves (44) of different sizes. A linear groove (61) is provided on one side of the interior of the support plate (6), and an arc-shaped groove (62) is provided on one side of the interior of the support plate (6), and the linear groove (61) is communicated with the arc-shaped groove (62); The elastic seat (7) includes a fixed block (71) and a through hole (72) extending through the fixed block (71). A cylinder (73) is rotatably connected to the through hole (72). One end of the cylinder (73) is fixedly connected to a torsion spring (74), and one end of the torsion spring (74) is fixedly connected to the fixed block (71). A slider (75) is fixedly mounted on one side of the fixed block (71), and the slider (75) is slidably connected to the frame plate (3). A plurality of chamfered grooves (76) are provided at one end of the cylinder (73), which can provide elastic force through the torsion spring. The pushing frame (8) includes a moving plate (81) and a limiting plate (82) hinged on one side of the moving plate (81), the limiting plate (82) is slidably connected to the support plate (6), one side of the limiting plate (82) is fixedly connected to a limiting rod (83), and the limiting rod (83) is slidably connected to the linear groove (61) and the arc groove (62), one side of the moving plate (81) is rotatably connected to a rotating rod (84), one end of the rotating rod (84) is rotatably connected to an L-shaped plate (85), one side of the L-shaped plate (85) is fixedly connected to a horizontal plate (86), and the horizontal plate (86) is slidably connected to the support plate (6), one side of the L-shaped plate (85) is fixedly connected to a vertical plate (87), one side of the vertical plate (87) is fixedly connected to two push rods (88), and the two push rods (88) are fixedly connected to the slider (75).

2. A depth measuring device for mining engineering according to claim 1, characterized in that: The winding member (1) comprises a box body (11) and a fixing frame (12) fixed to one side of the box body (11); a first motor (13) is fixedly mounted on one side of the fixing frame (12); a winding roller (14) is rotatably connected inside the box body (11), and the winding roller (14) is fixedly connected to the output end of the first motor (13); a measuring rope (2) is wound around the surface of the winding roller (14); and a handle (15) is fixedly mounted on one side of the box body (11).

3. A depth measuring device for mining engineering according to claim 1, characterized in that: Rotating seats (31) are fixedly mounted correspondingly on both sides of the frame plate (3), and the first contact plate (20) and the second contact plate (30) are both rotatably connected to the rotating seats (31).

4. A depth measuring device for mining engineering according to claim 1, characterized in that: The electric measuring rod (9) comprises a hydraulic cylinder (91) and an insert rod (92) fixed to the output end of the hydraulic cylinder (91); the insert rod (92) is connected to one side of the frame plate (3); a flange (93) is fixedly mounted on the surface of the insert rod (92), and the flange (93) is in contact with the limit plate (82).

5. The depth measuring device for mining engineering according to claim 1, characterized in that: A rotating shaft (201) is fixedly mounted on both sides of the first contact plate (20) and the second contact plate (30), a circular disc (202) is fixedly mounted on one end of the rotating shaft (201), and a plurality of V-shaped chamfers (203) matching the chamfer grooves (76) are evenly mounted on the surface of the circular disc (202), and the V-shaped chamfers (203) are slidably connected to the chamfer grooves (76).

6. A depth measuring device for mining engineering according to claim 1, characterized in that: The elastic member (40) comprises a connecting frame (401) and a rubber band (402) fixed on the connecting frame (401), and the rubber band (402) is fixedly connected to the first contact plate (20) and the second contact plate (30).

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