Coal mine goaf collapse and settlement detection equipment

Abstract

The invention provides coal mine goaf collapse and settlement detection equipment, and relates to the technical field of collapse and settlement detection.The coal mine goaf collapse and settlement detection equipment comprises a stand column, a supporting mechanism is installed at the lower end of the stand column, a distance separation detection mechanism is installed at the lower end of the supporting mechanism, and a main control case is installed at the lower end of the rear side of the stand column; a solar cell panel is installed at the upper end of the front surface of the stand column. The spacing detection mechanism comprises a plurality of storage cylinders which are overlapped up and down, each storage cylinder is linked with a laser distance measuring sensor through a connecting rod, and soil layers with different depths can be monitored in a layered manner, so that when a soil layer with a certain depth collapses or settles internally, a sleeve of the corresponding storage cylinder sinks due to displacement of the soil layer; the laser distance measuring sensor measures the distance change between the sleeve and the sensor in real time, and transmits data to the main control case through the spiral cable, so that fine displacement of an internal soil layer is accurately captured, and the collapse risk is warned in advance.

Description

Technical Field

[0001] The present invention relates to the technical field of subsidence detection, and more particularly, to a detection device for coal mine gob collapse and subsidence. Background Art

[0002] A coal mine gob refers to the space area left after underground coal resources are mined. With the progress of coal mining activities, the scope of the gob will continuously expand, and its formation and existence will have various impacts on the geological environment, surface morphology, and surrounding human activities in the mining area. Therefore, in order to facilitate users to accurately understand which parts of the gob have subsidence, it is necessary to install several detection devices on the gob to detect the gob. For example, a displacement and subsidence detection device for a mine gob proposed in the patent application with the application number "CN202020131867.1" includes the ground. A gob is provided at the center of the top of the ground. Fixed frames are fixedly connected to both sides of the top of the ground. A lifting mechanism is arranged at the top of the inner cavity of the fixed frame. A scale is fixedly connected to the left side of the top of the fixed frame by bolts. The bottom of the lifting mechanism is fixedly connected to a fixed box, and a moving mechanism is arranged in the inner cavity of the fixed box; However, in the above technical solution, only the settlement data after obvious deformation has occurred at the upper end of the ground can be detected. When there is collapse or subsidence inside the ground above the gob, but there are no obvious deformation signs at the upper end of the ground, the hidden dangers cannot be discovered in a timely and accurate manner. Therefore, we propose a detection device for coal mine gob collapse and subsidence to solve the above problems. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a detection device for coal mine gob collapse and subsidence, which solves the problem that only the settlement data after obvious deformation has occurred at the upper end of the ground can be detected, and when there is collapse or subsidence inside the ground above the gob, but there are no obvious deformation signs at the upper end of the ground, the hidden dangers cannot be discovered in a timely and accurate manner.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows: A coal mine goaf collapse settlement detection device, including a column. A support mechanism is installed at the lower end of the column. A distance separation detection mechanism is installed at the lower end of the support mechanism. A main control chassis is installed at the lower rear side of the column. A solar panel is installed at the upper front surface of the column. The solar panel is connected to the main control chassis through a wire by a photovoltaic charging controller. An antenna is installed at the upper end of the column. The antenna and the distance separation detection mechanism are connected to the main control chassis through wires. The support mechanism includes a limit rod. The limit rod is installed at the lower end of the column. Semi-circular clamping blocks are respectively clamped and installed at both ends of the outer side of the rod body of the limit rod. A number of fitting plates are respectively installed on the outer sides of the semi-circular clamping blocks. The distance separation detection mechanism includes a number of storage cylinders. The storage cylinders overlap vertically. The storage cylinder at the upper end overlaps vertically with the limit rod. First moving grooves are provided at the lower ends inside the limit rod and the storage cylinders. Connecting rods are installed in the middle of the upper surfaces of the storage cylinders. The rod bodies of the connecting rods are respectively clamped and installed inside the first moving grooves at the upper end. Sleeves are respectively movably installed inside the first moving grooves. The lower ends of the sleeves are respectively clamped and connected to the upper ends of the connecting rods. Laser distance sensors are respectively installed at the upper ends inside the first moving grooves, and the laser distance sensors are connected to the main control chassis through wires. The laser distance sensors and the sleeves are parallel vertically. A number of first temporary storage grooves are respectively provided on the outer sides of the storage cylinders. Fixed rods are respectively installed at the lower ends inside the first temporary storage grooves. Fitting blocks are respectively movably installed inside the first temporary storage grooves, and the rod bodies of the fixed rods respectively movably penetrate and are installed inside the fitting blocks. Storage wire grooves are respectively provided through the front ends inside the limit rod and the storage cylinders. Spiral cables are respectively installed through the storage wire grooves. Connectors are installed at both ends of the spiral cables. The connectors close to each other are clamped and connected. The connector at the uppermost end is connected to the main control chassis.

[0005] Preferably, a number of first hoop fasteners are installed at the lower end of the rod body of the column. The thickness of the first hoop fastener is connected to the main control chassis. If a second hoop fastener is installed at the upper end of the rod body of the column. A support frame is installed at the front end of the second hoop fastener. The front end of the support frame is connected to the solar panel.

[0006] Preferably, the limit rod includes an upper rod body and a lower rod body. Flange plates are respectively installed at the outer sides of the upper rod body and the lower rod body and at the ends close to each other. A number of bolts are respectively installed between the flange plates. A connection groove is provided at the upper end of the flange plate on the upper side. The semi-circular clamping blocks are respectively clamped and installed inside the connection groove. A number of bolts are installed between the semi-circular clamping blocks and the connection groove.

[0007] Preferably, movable disks are respectively installed at the upper ends of the sleeves. The movable disks are respectively movably installed inside the first movable grooves. Guide rods are respectively installed at the front and rear ends inside the first movable grooves. The rod bodies of the guide rods respectively movably penetrate and are installed inside the movable disks.

[0008] Preferably, the movable disks and the laser distance sensors are parallel to each other vertically. Through holes are respectively provided between the first movable grooves and the wire storage grooves. One ends of the spiral cables respectively movably penetrate and are installed inside the through holes and are connected to the laser distance sensors.

[0009] Preferably, positioning holes are respectively provided at both ends inside the sleeves. Auxiliary grooves are respectively provided at both ends of the connecting rods located inside the sleeves. Positioning frames respectively movably penetrate and are installed inside the auxiliary grooves. The mutually remote ends of the positioning frames are respectively snap-fitted and installed inside the positioning holes. First springs are respectively installed between the mutually close sides of the positioning frames and the auxiliary grooves. The lower ends of the sleeves are all inclined.

[0010] Preferably, the storage cylinder includes an upper cylinder body and a lower cylinder body. The upper cylinder body and the lower cylinder body are attached and connected to each other. A plurality of fixing blocks are respectively installed at the outer sides of the upper cylinder body and the lower cylinder body and at the mutually close ends. Bolts are respectively installed between the overlapping fixing blocks. A conical sealing block is installed at the lower side of the lowermost storage cylinder. The upper ends of the conical sealing block are respectively snap-fitted and installed inside the lower ends of the wire storage grooves and the first movable grooves. Sealing plugs are respectively installed at the upper and lower ends inside the wire storage grooves where no spiral cables are installed.

[0011] Preferably, second movable grooves are respectively provided at the upper ends inside the storage cylinder. Push rods respectively movably penetrate and are installed at the upper ends inside the second movable grooves. The rod bodies of the push rods respectively movably penetrate and are installed inside the connecting rods, and the upper ends of the push rods are in contact with the sleeves. Push disks are respectively movably installed at the lower ends inside the second movable grooves. The upper ends of the push disks are connected to the push rods.

[0012] Preferably, guide grooves are respectively provided at the ends, close to the first temporary storage grooves, inside the storage cylinder. The guide grooves and the first temporary storage grooves correspond to each other one by one and are connected through. The upper ends of the guide grooves are respectively connected through to the second movable grooves. Movable blocks are respectively movably installed inside the guide grooves. The upper ends of the movable blocks are respectively movably located inside the second movable grooves and are connected to the push disks. Second springs are respectively installed between the lower ends of the movable blocks and the guide grooves.

[0013] Preferably, clamping blocks and pressing blocks are respectively and fixedly installed at the upper and lower ends of the movable block close to one side of the first temporary storage groove. Second temporary storage grooves and clamping grooves are respectively arranged at both ends of the upper surface of the fitting block. The clamping blocks and the clamping grooves correspond to each other one by one, and the clamping blocks are respectively clamped and installed inside the clamping grooves. The pressing blocks and the second temporary storage grooves correspond to each other one by one, and the pressing blocks are in fit with the upper surface of the fitting block.

[0014] 1. The distance measurement mechanism in the present invention includes a number of storage cylinders that overlap vertically. Each storage cylinder is linked with a laser distance sensor through a connecting rod, and can monitor different depths of soil layers in layers. Thus, when internal collapse or settlement occurs in a soil layer at a certain depth, the sleeve of the corresponding storage cylinder sinks due to soil displacement. The laser distance sensor measures the distance change between the sleeve and the sensor in real time, and transmits the data to the main control chassis through a spiral cable to accurately capture the subtle displacement of the internal soil layer and early warn of the collapse risk.

[0015] 2. In the present invention, the fitting block is used to increase the fitting area between the storage cylinder and the soil layer. Thus, when the soil layer collapses or settles, the storage cylinder can be synchronously driven to move through the fitting block. At the same time, when connecting the connecting rod and the sleeve, the sleeve will push the push rod to move downward, so that the pressing block presses and positions the fitting block, ensuring that the fitting block can stably follow the movement of the soil layer and preventing the fitting block from bending, so as to ensure that the laser distance sensor accurately captures the multi-dimensional deformation data of the soil layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the three-dimensional structure schematic diagram of the present invention; Figure 2 is the front view structure schematic diagram of the present invention; Figure 3 is the side view structure schematic diagram of the present invention; Figure 4 is Figure 2 the three-dimensional schematic diagram of the sectional structure at A-A in Figure 5 is Figure 3 the three-dimensional schematic diagram of the sectional structure at B-B in Figure 6 is Figure 4 the enlarged three-dimensional structure schematic diagram at C in Figure 7 is Figure 4 the enlarged three-dimensional structure schematic diagram at D in Figure 8 is Figure 4 the enlarged three-dimensional structure schematic diagram at E in Figure 9 is Figure 4 the enlarged three-dimensional structure schematic diagram at F in Figure 10 Yes Figure 5 It is a schematic enlarged three-dimensional structure diagram at position G in the figure.

[0017] In the figure: 1. Column; 2. Support mechanism; 201. Limit rod; 202. Upper rod body; 203. Lower rod body; 204. Flange; 205. Connection groove; 206. Semi-circular clamping block; 207. Fitting plate; 3. Spacing detection mechanism; 301. Storage cylinder; 302. Upper cylinder body; 303. Lower cylinder body; 304. Cable storage groove; 305. Helical cable; 306. Connector; 307. First movable groove; 308. Connecting rod; 309. Through hole; 310. Laser distance sensor; 311. Movable disk; 312. Guide rod; 313. Sleeve; 314. Positioning hole; 315. Positioning frame; 316. Auxiliary groove; 317. First spring; 318. Push rod; 319. Sealing plug; 320. Second movable groove; 321. Push disk; 322. Guide groove; 323. Movable block; 324. Clamping block; 325. Pressing block; 326. Second spring; 327. First temporary storage groove; 328. Fixed rod; 329. Fitting block; 330. Card slot; 331. Second temporary storage groove; 332. Conical sealing block; 333. Fixed block; 4. First hoop; 5. Main control chassis; 6. Second hoop; 7. Solar panel; 8. Support frame; 9. Antenna. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Such as Figures 1 to 10As shown in the figure, a detection device for the collapse and settlement of a coal mine goaf includes a column 1. A support mechanism 2 is installed at the lower end of the column 1. A distance detection mechanism 3 is installed at the lower end of the support mechanism 2. A main control chassis 5 is installed at the lower rear side of the column 1. A solar panel 7 is installed at the upper front surface of the column 1. The solar panel 7 is connected to the main control chassis 5 through a wire via a photovoltaic charging controller. An antenna 9 is installed at the upper end of the column 1. The antenna 9 and the distance detection mechanism 3 are connected to the main control chassis 5 through wires. The support mechanism 2 includes a limit rod 201. The limit rod 201 is installed at the lower end of the column 1. Semi-circular clamping blocks 206 are respectively clamped and installed at both ends on the outer side of the rod body of the limit rod 201. A number of fitting plates 207 are respectively installed on the outer sides of the semi-circular clamping blocks 206. The distance detection mechanism 3 includes a number of storage cylinders 301. The storage cylinders 301 overlap vertically. The storage cylinder 301 located at the upper end overlaps vertically with the limit rod 201. First moving grooves 307 are provided at the lower inner parts of the limit rod 201 and the storage cylinders 301. Connecting rods 308 are respectively installed in the middle of the upper surfaces of the storage cylinders 301. The rod bodies of the connecting rods 308 are respectively clamped and installed inside the first moving grooves 307 located at the upper end. Sleeve tubes 313 are respectively movably installed inside the first moving grooves 307. The lower ends of the sleeve tubes 313 are respectively clamped and connected to the upper ends of the connecting rods 308. Laser distance sensors 310 are respectively installed at the upper inner parts of the first moving grooves 307. And the laser distance sensors 310 are connected to the main control chassis 5 through wires. The laser distance sensors 310 and the sleeve tubes 313 are parallel to each other vertically. A number of first temporary storage grooves 327 are respectively provided on the outer sides of the storage cylinders 301. Fixed rods 328 are respectively installed at the lower ends inside the first temporary storage grooves 327. Fitting blocks 329 are respectively movably installed inside the first temporary storage grooves 327. And the rod bodies of the fixed rods 328 respectively pass through the fitting blocks 329 movably. Storage wire grooves 304 are respectively provided through the front parts inside the limit rod 201 and the storage cylinders 301. Spiral cables 305 are respectively installed through the storage wire grooves 304. Connectors 306 are respectively installed at both ends of the spiral cables 305. The connectors 306 close to each other are clamped and connected. The connector 306 located at the uppermost end is connected to the main control chassis 5.

[0020] As Figure 3 shown, among them, a number of first hoop clamps 4 are installed at the lower end of the rod body of the column 1. The thickness of the first hoop clamps 4 is connected to the main control chassis 5. A number of second hoop clamps 6 are installed at the upper end of the rod body of the column 1. A support frame 8 is installed at the front end of the second hoop clamps 6. The front end of the support frame 8 is connected to the solar panel 7.

[0021] The first hoop 4 and the second hoop 6 are both installed on the column 1 through bolts, so that the first hoop 4 supports the main control chassis 5 and suspends it at the rear side of the column 1 to prevent the equipment from being damaged by ground moisture. Then, the second hoop 6 cooperates with the support frame 8 to tilt and fix the solar panel 7, so as to ensure that the solar panel 7 can receive light maximally. Then, the photovoltaic charging controller supplies power to the battery inside the main control chassis 5. As Figure 4 , Figure 5 and Figure 10 shown, the limit rod 201 includes an upper rod body 202 and a lower rod body 203. Flange plates 204 are respectively installed on the outer sides of the upper rod body 202 and the lower rod body 203 at the ends close to each other. A number of bolts are respectively installed between the flange plates 204. A connection groove 205 is provided at the upper end of the upper flange plate 204. Semi-circular blocks 206 are respectively snap-fitted inside the connection groove 205. A number of bolts are installed between the semi-circular blocks 206 and the connection groove 205.

[0022] By dividing the limit rod 201 into two parts, the upper rod body 202 and the lower rod body 203, split production and assembly are realized, reducing the overall production cost. Then, after the upper rod body 202 and the lower rod body 203 form the limit rod 201 through the installation of the flange plates 204 and bolts, the user installs the semi-circular blocks 206 through bolts, making the fitting plate 207 driven to be buried into the upper end of the ground, so that when the upper end of the ground collapses and settles, the column 1 and the components at its upper end can be driven to move downward at the same time. At the same time, the fitting plate 207 is also used to stably support the whole, improving the overall stability.

[0023] As Figure 6 shown, the upper ends of the sleeves 313 are respectively installed with movable disks 311. The movable disks 311 are respectively movably installed inside the first movable grooves 307. Guide rods 312 are respectively installed at the front and rear ends inside the first movable grooves 307. The rod bodies of the guide rods 312 are respectively movably penetrated and installed inside the movable disks 311. The movable disks 311 and the laser distance sensors 310 are parallel to each other up and down. Through holes 309 are respectively provided between the first movable grooves 307 and the wire storage grooves 304. One ends of the spiral cables 305 are respectively movably penetrated and installed inside the through holes 309 and are connected to the laser distance sensors 310.

[0024] When settlement or collapse occurs in some parts of the land, the storage cylinder 301 and the fitting block 329 in this area will move downward synchronously with the subsiding or collapsing soil layer. Then, the storage cylinder 301 will drive the connecting rod 308 at its upper end to move downward. Then, the connecting rod 308 will drive the sleeve 313 and the movable disk 311 to move. Then, as the connecting rod 308 and the movable disk 311 move downward, the laser distance sensor 310 can measure the change in the distance between the movable disk 311 and itself in real time. Then, the data is transmitted through the spiral cable 305, so that the user can accurately understand what kind of collapse or settlement situation occurs at which position in the land according to the transmitted data, which is more accurate.

[0025] As Figure 6 shown, both ends inside the sleeve 313 are respectively provided with positioning holes 314. Both ends of the connecting rod 308 located inside the sleeve 313 are respectively provided with auxiliary grooves 316. Positioning frames 315 are respectively installed through the inside of the auxiliary grooves 316 in a movable manner. The mutually remote ends of the positioning frames 315 are respectively snap-fitted inside the positioning holes 314. First springs 317 are respectively installed between the mutually close sides of the positioning frames 315 and the auxiliary grooves 316. The lower ends of the sleeves 313 are all in an inclined shape.

[0026] When the user installs between the storage cylinders 301, each storage cylinder 301 drives the connecting rod 308 to be inserted into the first movable groove 307 inside the previous storage cylinder 301 or the limiting rod 201. Then, as the connecting rod 308 moves upward, the connecting rod 308 will be in contact with the sleeve 313. Then, as the connecting rod 308 continues to move upward, the connecting rod 308 will push the sleeve 313 and the movable disk 311 to move upward. Then, when the movable disk 311 moves to a position where it cannot move further, as the connecting rod 308 continues to push, the positioning frame 315 can retract inward under the guidance of the inclined surface at the lower end of the sleeve 313, so that the positioning frame 315 squeezes the first spring 317. Then, when the connecting rod 308 is inserted into the inside of the sleeve 313 and the positioning frame 315 coincides with the positioning hole 314, the first spring 317 can push the positioning frame 315 to be inserted into the positioning hole 314 to complete the assembly work between two storage cylinders 301 or between the storage cylinder 301 and the limiting rod 201, so that each section of the storage cylinder 301 can move independently, and at the same time, the laser distance sensor 310 in the previous section can detect the moving distance of the connecting rod 308 and the storage cylinder 301 in the next section, which is more convenient to use.

[0027] As Figure 5 、 Figure 8 And Figure 9As shown in the figure, the storage cylinder 301 includes an upper cylinder body 302 and a lower cylinder body 303. The upper cylinder body 302 and the lower cylinder body 303 are fitted and connected. At the outer sides of the upper cylinder body 302 and the lower cylinder body 303 and at the ends close to each other, a number of fixing blocks 333 are respectively installed. Bolts are respectively installed between the overlapping fixing blocks 333. A conical sealing block 332 is installed at the lower side of the lowermost storage cylinder 301. The upper ends of the conical sealing block 332 are respectively clamped and installed inside the lower ends of the storage wire groove 304 and the first movable groove 307. Sealing plugs 319 are installed at both the upper and lower ends inside the storage wire groove 304 where the spiral cable 305 is not installed.

[0028] By dividing the storage cylinder 301 into two parts, namely the upper cylinder body 302 and the lower cylinder body 303, split production and assembly are realized. Then, through the cooperation of the fixing blocks 333 and the bolts, the installation work between the upper cylinder body 302 and the lower cylinder body 303 is realized, which is convenient for the user to install the various components inside the storage cylinder 301 and for later maintenance work. The conical sealing block 332 is used to seal the lower end of the lowermost storage cylinder 301, and is also used for the preliminary positioning of the storage cylinder 301. Then, the sealing plugs 319 are used to seal the upper and lower ends of the storage wire groove 304 where the spiral cable 305 is not installed, thus preventing groundwater and soil from invading the interiors of the first movable groove 307 and the storage wire groove 304. By means of the laser distance measuring sensor 310 inside the upper layer of the storage cylinder 301 to detect the displacement of the lower layer of the storage cylinder 301 and the connecting rod 308, it is not necessary to install a spiral cable 305 inside the lowermost storage cylinder 301 to supply power to and transmit data for the laser distance measuring sensor 310 inside it. Because the lowermost storage cylinder 301 will be detected by the upper layer of the storage cylinder 301, at this time, the sealing plugs 319 and the conical sealing block 332 can be used to seal the interior of the first movable groove 307 and the storage wire groove 304 inside the lowermost storage cylinder 301 and the lower end inside the storage wire groove 304 inside the upper layer of the storage cylinder 301.

[0029] The limiting rod 201 is divided into two parts, namely an upper rod body 202 and a lower rod body 203, to realize split production and assembly and reduce the overall production cost. Such as Figure 6 And Figure 9As shown in the figure, at the upper ends inside the storage cylinder 301, second movable grooves 320 are respectively provided. At the upper ends inside the second movable grooves 320, push rods 318 are respectively installed through them in a movable manner. The rod bodies of the push rods 318 are respectively installed through the insides of the connecting rods 308 in a movable manner, and the upper ends of the push rods 318 are in contact with the sleeves 313. At the lower ends inside the second movable grooves 320, push plates 321 are respectively installed in a movable manner. The upper ends of the push plates 321 are connected to the push rods 318. At one ends of the storage cylinder 301 close to the first temporary storage groove 327, guiding grooves 322 are respectively provided. The guiding grooves 322 and the first temporary storage groove 327 are in one-to-one correspondence and are connected through. The upper ends of the guiding grooves 322 are respectively connected through to the second movable grooves 320. Inside the guiding grooves 322, movable blocks 323 are respectively installed in a movable manner. The upper ends of the movable blocks 323 are respectively located inside the second movable grooves 320 in a movable manner and are connected to the push plates 321. Between the lower ends of the movable blocks 323 and the guiding grooves 322, second springs 326 are respectively installed. At the upper and lower ends of one sides of the movable blocks 323 close to the first temporary storage groove 327, clamping blocks 324 and pressing blocks 325 are respectively fixedly installed. At both ends of the upper surface of the fitting block 329, a second temporary storage groove 331 and a clamping groove 330 are respectively provided. The clamping blocks 324 and the clamping grooves 330 are in one-to-one correspondence, and the clamping blocks 324 are respectively installed in the clamping grooves 330 in a clamping manner. The pressing blocks 325 and the second temporary storage grooves 331 are in one-to-one correspondence, and the pressing blocks 325 are in contact with the upper surface of the fitting block 329.

[0030] When installing the storage cylinder 301, the user first digs a hole with the required depth at the upper end of the goaf, then takes out a specified number of storage cylinders 301 at the points to be detected as needed. Then the user first puts the first storage cylinder 301 into the hole to form the deepest inspection point. Then the user puts the second storage cylinder 301 into the hole. Then, as the second storage cylinder 301 moves down, the connecting rod 308 can drive the positioning frame 315 to enter the first movable groove 307 along the trumpet-shaped inlet at the lower end inside the first movable groove 307. After the connecting rod 308 enters the first movable groove 307, the user continues to lower the second storage cylinder 301. Then the connecting rod 308 on the first storage cylinder 301 pushes the sleeve 313 inside the second storage cylinder 301 to move up. Then, when the movable plate 311 cannot move anymore, with the continuous pushing of the connecting rod 308, the positioning frame 315 can retract inward under the guidance of the inclined surface at the lower end of the sleeve 313, so that the positioning frame 315 squeezes the first spring 317. Then, when the connecting rod 308 is inserted into the sleeve 313 and the positioning frame 315 coincides with the positioning hole 314, the first spring 317 can push the positioning frame 315 to insert into the positioning hole 314. At the same time, as the connecting rod 308 moves up, the sleeve 313 gradually squeezes the push rod 318 inside the connecting rod 308 downward, so that the push rod 318 pushes the push plate 321 and the movable block 323 to move down. The movable block 323 first drives the clamping block 324 and the pressing block 325 to move down along the clamping groove 330 and the second temporary storage groove 331, so that the clamping block 324 is separated from the clamping groove 330. Then the fitting block 329 on the outside of the first storage cylinder 301 can rotate around the fixing rod 328 as the axis, so that the fitting block 329 expands outward and fits with the lower surface in the hole. After the fitting block 329 expands, the push rod 318 continues to push the movable block 323 to move down, and the movable block 323 drives the pressing block 325 to squeeze and fix the fitting block 329 to maintain the stability of the fitting block 329. At the same time, the movable block 323 also squeezes the second spring 326 to complete the installation of the first storage cylinder 301. Then, when the fitting block 329 on the first storage cylinder 301 expands and the connecting rod 308 on the first storage cylinder 301 is connected to the sleeve 313 inside the second storage cylinder 301, the user can fill the hole with soil so that the soil completely wraps the first storage cylinder 301. After the first storage cylinder 301 is filled, the user can put the third storage cylinder 301 into the hole, and then repeat the above steps to assemble and connect the second storage cylinder 301 and the third storage cylinder 301. Then, when the assembly between the second storage cylinder 301 and the third storage cylinder 301 is completed, as the third storage cylinder 301 fits with the second storage cylinder 301,It will cause the joint 306 at the lower end of the third storage cylinder 301 to be squeezed and engaged with the joint 306 at the upper end of the second storage cylinder 301, thereby realizing the connection between the spiral cables 305, facilitating power supply and data transmission. Finally, repeat the above steps to gradually carry out landfill and assembly work, and form multiple inspection points in the land at the upper end of the goaf to accurately measure the settlement and collapse of each soil layer in the land.

[0031] The working principle of this coal mine goaf collapse and settlement detection device: When in use, first, when installing the storage cylinder 301, the user first digs a hole with the required depth at the upper end of the goaf, and then takes out a specified number of storage cylinders 301 at the points to be detected as needed. Then the user first puts the first storage cylinder 301 into the hole to form the deepest inspection point. Then the user puts the second storage cylinder 301 into the hole. Then, as the second storage cylinder 301 moves downward, the connecting rod 308 can drive the positioning frame 315 to enter the first movable groove 307 along the trumpet-shaped inlet at the lower end inside the first movable groove 307. After the connecting rod 308 enters the first movable groove 307, the user continues to lower the second storage cylinder 301. Then the connecting rod 308 on the first storage cylinder 301 pushes the sleeve 313 inside the second storage cylinder 301 to move upward. Then, when the movable disk 311 cannot move any further, with the continuous pushing of the connecting rod 308, the positioning frame 315 can retract inward under the guidance of the inclined surface at the lower end of the sleeve 313, so that the positioning frame 315 squeezes the first spring 317. Then, when the connecting rod 308 is inserted into the sleeve 313 and the positioning frame 315 coincides with the positioning hole 314, the first spring 317 can push the positioning frame 315 to insert into the positioning hole 314. At the same time, as the connecting rod 308 moves upward, the sleeve 313 gradually squeezes the push rod 318 inside the connecting rod 308 downward, so that the push rod 318 pushes the push disk 321 and the movable block 323 to move downward. The movable block 323 first drives the clamping block 324 and the pressing block 325 to move downward along the clamping groove 330 and the second temporary storage groove 331, so that the clamping block 324 is separated from the clamping groove 330. Then the fitting block 329 on the outside of the first storage cylinder 301 can rotate around the fixing rod 328 as the axis, so that the fitting block 329 expands outward to make the fitting block 329 fit with the lower surface in the hole. After the expansion of the fitting block 329 is completed, the push rod 318 continues to push the movable block 323 to move downward, and the movable block 323 drives the pressing block 325 to squeeze and fix the fitting block 329 to maintain the stability of the fitting block 329. At the same time, the movable block 323 also squeezes the second spring 326 to complete the installation of the first storage cylinder 301. Then, when the fitting block 329 on the first storage cylinder 301 expands and the connecting rod 308 on the first storage cylinder 301 is connected to the sleeve 313 inside the second storage cylinder 301, the user can fill the hole, so that the soil completely wraps the first storage cylinder 301. After the first storage cylinder 301 is filled, the user can put the third storage cylinder 301 into the hole, and then repeat the above steps to assemble and connect the second storage cylinder 301 and the third storage cylinder 301. Then, after the second storage cylinder 301 and the third storage cylinder 301 are assembled, as the third storage cylinder 301 fits with the second storage cylinder 301,It will cause the connector 306 at the lower end of the third storage cylinder 301 to be squeezed and engaged with the connector 306 at the upper end of the second storage cylinder 301, thereby realizing the connection between the spiral cables 305. Finally, repeat the above steps to gradually carry out the landfill and assembly work on the storage cylinder 301. Then, after the installation of the storage cylinder 301 is completed, the user places the limit rod 201 and lets the limit rod 201 repeat the above steps to be assembled and connected with the uppermost storage cylinder 301, so that the fitting block 329 on the outer side of the uppermost storage cylinder 301 is unfolded. Finally, after the assembly between the limit rod 201 and the storage cylinder 301 is completed, the user can complete the final landfill of the hole, so that both the limit rod 201 and the storage cylinder 301 are located inside the land, enabling the storage cylinder 301 to detect each depth inside the land, while the limit rod 201 is used to support the column 1 and also to cooperate with the main control chassis 5 and the antenna 9 to detect the surface of the land. Then, when the soil layer at a certain depth inside the land settles or collapses, the soil layer will drive the fitting block 329 and the storage cylinder 301 at that position to move downward. Then, this storage cylinder 301 will also drive the connecting rod 308 and the upper-level sleeve 313 to move downward. Then, the laser distance sensor 310 inside the upper-level storage cylinder 301 can measure the distance change between the movable disk 311 and itself in real time, and then transmit the data through the spiral cable 305, so that the user can accurately understand what kind of collapse or settlement situation has occurred at which position inside the land according to the transmitted data.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A detection device for the collapse and settlement of a coal mine goaf, including a column (1), characterized in that: A support mechanism (2) is installed at the lower end of the column (1), a distance detection mechanism (3) is installed at the lower end of the support mechanism (2), a main control chassis (5) is installed at the lower rear side of the column (1), a solar panel (7) is installed at the upper end of the front surface of the column (1), the solar panel (7) is connected to the main control chassis (5) through a wire via a photovoltaic charging controller, an antenna (9) is installed at the upper end of the column (1), the antenna (9) and the distance detection mechanism (3) are connected to the main control chassis (5) through wires. The support mechanism (2) includes a limit rod (201), the limit rod (201) is installed at the lower end of the column (1), semicircular clamping blocks (206) are respectively clamped and installed at both ends of the outer side of the rod body of the limit rod (201), a plurality of fitting plates (207) are respectively installed on the outer sides of the semicircular clamping blocks (206). The distance detection mechanism (3) includes a plurality of storage cylinders (301), the storage cylinders (301) overlap vertically, the upper storage cylinder (301) overlaps vertically with the limit rod (201), first moving grooves (307) are provided at the lower ends inside the limit rod (201) and the storage cylinders (301), connecting rods (308) are respectively installed in the middle of the upper surfaces of the storage cylinders (301), the rod bodies of the connecting rods (308) are respectively clamped inside the first moving grooves (307) at the upper end, sleeves (313) are respectively movably installed inside the first moving grooves (307), the lower ends of the sleeves (313) are respectively clamped and connected to the upper ends of the connecting rods (308), laser distance sensors (310) are respectively installed at the upper ends inside the first moving grooves (307), and the laser distance sensors (310) are connected to the main control chassis (5) through wires. The laser distance sensors (310) are parallel to the sleeves (313) vertically. A plurality of first temporary storage grooves (327) are respectively provided on the outer sides of the storage cylinders (301), fixed rods (328) are respectively installed at the lower ends inside the first temporary storage grooves (327), fitting blocks (329) are respectively movably installed inside the first temporary storage grooves (327), and the rod bodies of the fixed rods (328) respectively pass through the fitting blocks (329) movably. Wire storage grooves (304) are respectively provided through the front ends inside the limit rod (201) and the storage cylinders (301), spiral cables (305) are respectively installed through the wire storage grooves (304), connectors (306) are respectively installed at both ends of the spiral cables (305), the connectors (306) close to each other are clamped and connected, and the connector (306) at the uppermost end is connected to the main control chassis (5).

2. The coal mine goaf collapse settlement detection device according to claim 1, wherein: A number of first hoops (4) are installed at the lower end of the rod body of the upright column (1). The thickness of the first hoop (4) is connected to the main control chassis (5). If a second hoop (6) is installed at the upper end of the rod body of the upright column (1). A support frame (8) is installed at the front end of the second hoop (6). The front end of the support frame (8) is connected to the solar panel (7).

3. The coal mine goaf collapse settlement detection device according to claim 1, characterized in that: The limit rod (201) includes an upper rod body (202) and a lower rod body (203). Flange plates (204) are respectively installed on the outer sides of the upper rod body (202) and the lower rod body (203) and at the ends close to each other. A number of bolts are respectively installed between the flange plates (204). A connection groove (205) is provided at the upper end of the flange plate (204) on the upper side. The semi-circular blocks (206) are respectively snap-fitted inside the connection groove (205). A number of bolts are installed between the semi-circular blocks (206) and the connection groove (205).

4. The coal mine goaf collapse settlement detection device according to claim 1, characterized in that: Moving disks (311) are respectively installed at the upper ends of the sleeves (313). The moving disks (311) are respectively movably installed inside the first moving grooves (307). Guide rods (312) are respectively installed at the front and rear ends inside the first moving grooves (307). The rod bodies of the guide rods (312) are respectively movably penetrated and installed inside the moving disks (311).

5. The coal mine goaf collapse and settlement detection device according to claim 4, characterized in that: The moving disk (311) is parallel to the laser distance sensor (310) up and down. Through holes (309) are respectively provided between the first moving groove (307) and the cable storage groove (304). One end of the spiral cable (305) is respectively movably penetrated and installed inside the through holes (309) and is connected to the laser distance sensor (310).

6. The coal mine goaf collapse and settlement detection device according to claim 1, wherein: Positioning holes (314) are respectively provided at both ends inside the sleeve (313). Auxiliary grooves (316) are respectively provided at both ends of the connecting rod (308) located inside the sleeve (313). Positioning frames (315) are respectively movably penetrated and installed inside the auxiliary grooves (316). The ends of the positioning frames (315) away from each other are respectively snap-fitted inside the positioning holes (314). First springs (317) are respectively installed between the sides of the positioning frames (315) close to each other and the auxiliary grooves (316). The lower ends of the sleeves (313) are all inclined.

7. The coal mine goaf collapse settlement detection device according to claim 1, characterized in that: The storage cylinder (301) includes an upper cylinder body (302) and a lower cylinder body (303). The upper cylinder body (302) and the lower cylinder body (303) are adhesively connected. A number of fixing blocks (333) are respectively installed on the outer sides of the upper cylinder body (302) and the lower cylinder body (303) and at the ends close to each other. Bolts are respectively installed between the overlapping fixing blocks (333). A conical sealing block (332) is installed on the lower side of the lowermost storage cylinder (301). The upper end of the conical sealing block (332) is respectively snap-fitted inside the lower ends of the cable storage groove (304) and the first moving groove (307). Sealing plugs (319) are installed at both the upper and lower ends inside the cable storage groove (304) where the spiral cable (305) is not installed.

8. The coal mine goaf collapse settlement detection device according to claim 1, characterized in that: The upper ends inside the storage cylinder (301) are respectively provided with second movable grooves (320). The upper ends inside the second movable grooves (320) are respectively movably penetrated and installed with push rods (318). The rod bodies of the push rods (318) are respectively movably penetrated and installed inside the connecting rods (308), and the upper ends of the push rods (318) are in contact with the sleeves (313). The lower ends inside the second movable grooves (320) are respectively movably installed with push plates (321). The upper ends of the push plates (321) are connected to the push rods (318).

9. The coal mine goaf collapse and settlement detection device according to claim 8, characterized in that: One ends of the storage cylinder (301) close to the first temporary storage groove (327) are respectively provided with guiding grooves (322). The guiding grooves (322) and the first temporary storage groove (327) are in one-to-one correspondence and are connected through. The upper ends of the guiding grooves (322) are respectively connected through to the second movable grooves (320). Movable blocks (323) are respectively movably installed inside the guiding grooves (322). The upper ends of the movable blocks (323) are respectively movably located inside the second movable grooves (320) and are connected to the push plates (321). Second springs (326) are respectively installed between the lower ends of the movable blocks (323) and the guiding grooves (322).

10. The coal mine goaf collapse settlement detection device according to claim 9, characterized in that: The upper and lower ends of one side of the movable block (323) close to the first temporary storage groove (327) are respectively fixedly installed with clamping blocks (324) and pressing blocks (325). Second temporary storage grooves (331) and clamping grooves (330) are respectively provided at both ends of the upper surface of the fitting block (329). The clamping blocks (324) and the clamping grooves (330) are in one-to-one correspondence, and the clamping blocks (324) are respectively clamped and installed inside the clamping grooves (330). The pressing blocks (325) and the second temporary storage grooves (331) are in one-to-one correspondence, and the pressing blocks (325) are in contact with the upper surface of the fitting block (329).

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