Measuring device for ground surface settlement in coal mining area

Abstract

The utility model discloses a measuring device for ground surface settlement in a coal mining area, and belongs to the technical field of mineral mining devices. The device comprises a positioning disc, the periphery of the positioning disc is slidably sleeved with a vibration detection ring sleeve, the periphery of the vibration detection ring sleeve is provided with multiple groups of trays, the tops of the trays are provided with metal balls, the center of the bottom of the positioning disc is provided with an inner conical barrel, the top of the inner conical barrel is provided with a middle sleeve, and the middle of the middle sleeve is provided with a top column in a penetrating mode. According to the utility model, the metal balls which are arranged in multiple directions can be used for receiving vibration of a ground soil layer, falling is generated to contact with the power connection terminal, the alarm lamp is prompted to flicker, so that an audible and visual alarm is given out, the vibration direction is detected, and embedded connection detection can be carried out for different soil layers; the bottom rod is conveniently pulled to slide down when collapse or hole falling motion occurs in different soil layers, a pressure switch is triggered to be electrically connected with an external flashing light to generate an audible and visual alarm, and hidden dangers of collapse or holes in the underground soil layers can be detected in advance.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral mining devices, in particular to a device for measuring ground subsidence in a coal mining area. Background Art

[0002] Surface subsidence in coal mining areas is a complex phenomenon involving multiple influences and causes. When coal mining reaches a certain stage, the movement and destruction of underground rock mass will gradually affect the surface, causing the surface to sink from its original elevation. As the scope of the goaf expands, the impact on the surface will also intensify, especially when the distance between the center of the goaf and the surrounding boundaries exceeds a certain critical value, the rock layers above the center will all break and collapse, forming a caving zone, which will lead to serious collapse and deformation of the ground. Mining causes changes in groundwater flow, and the rise and fall of groundwater levels will also cause surface subsidence.

[0003] In conjunction with the above, it should be noted that: traditional surface settlement measurement devices usually detect height changes of visible soil layers or rocks on the surface of the ground, and lack actual detection of soil layers inside the local surface, resulting in settlement stratification or voids inside the surface of the area, so that the area is in danger of collapse after being subjected to changes in external pressure;

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a measuring device for surface subsidence in a coal mining area to solve the proposed problem.

[0006] The purpose of the utility model can be achieved by the following technical solutions: a measuring device for ground settlement in a coal mining area, comprising a positioning plate, a vibration detection ring sleeve is slidably sleeved on the outer periphery of the positioning plate, multiple groups of trays are arranged on the outer periphery of the vibration detection ring sleeve, and a metal ball is arranged on the top of the tray, an inner cone barrel is arranged at the bottom center of the positioning plate, a middle sleeve is arranged on the top of the inner cone barrel, and a top column is arranged through the middle of the middle sleeve;

[0007] An inner tube is arranged at the bottom center of the top column, and a through hole is arranged through the middle of the inner tube, a bottom column is arranged at the bottom of the top column, a sliding tube is arranged at the top of the bottom column, and a rotating disk is arranged in the middle of the bottom column, and an inner rotating ring is arranged inside the rotating disk.

[0008] Preferably, guide pillars are symmetrically arranged on the outer walls on both sides of the positioning plate, side plates are symmetrically arranged on the outer walls at the bottom of both ends of the positioning plate, multiple groups of alarm lights are arranged on the top of the positioning plate, and a conical cavity is arranged between the bottom of the inner cone barrel and the positioning plate.

[0009] Preferably, inner arc openings are symmetrically recessed on the inner walls on both sides of the vibration detection ring sleeve, bolt sleeves are symmetrically arranged on the tops of both ends of the vibration detection ring sleeve, a connecting shaft is arranged on the outer peripheral wall of the vibration detection ring sleeve, and a connecting rod connected to the tray is arranged on the outer periphery of the connecting shaft.

[0010] Preferably, a transparent cover is provided on the outer side of the top of the tray, a central column connected to the metal ball is provided at the center of the top of the tray, and an electrical terminal is provided on the top wall of the tray.

[0011] Preferably, an inner sleeve connected to the top column is arranged inside the center sleeve, a plurality of groups of external flashing lights are embedded on the outer peripheral wall of the center sleeve, fixing flanges are arranged on the top and bottom outer walls of the top column, a limiting sleeve close to the inner tube is arranged on the inner wall of the bottom of the top column, and a pressure switch is arranged on the top inner wall of the limiting sleeve.

[0012] Preferably, a sliding sleeve is provided on the top of the sliding tube, a plurality of groups of rotating plates are slidably embedded on the top and bottom of the outer periphery of the rotating disk, a limiting arc groove is provided in the middle of the outer periphery of the rotating disk, a driven gear plate meshing with the inner rotating ring is embedded on the inner wall of the rotating disk, and a traction line connected to the rotating plate is provided on the outer periphery of the driven gear plate.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model is used in conjunction with a positioning plate and a vibration detection ring sleeve, which is attached to the surface soil layer of a coal mining area, and uses metal balls arranged in multiple directions to receive the vibration of the ground soil layer, which causes the falling contact with the power terminal, causing the alarm light to flash, thereby emitting an audible and visual alarm, and is also used to detect the vibration direction;

[0015] (2) The utility model is installed on the soil surface of the coal mining area by means of a top column and a bottom column in cooperation with a positioning plate. The top column and the bottom column are inserted into the soil layer by sleeve connection. An external screw is inserted into the inner rotating plate to cause the rotating piece to unfold and get stuck into different layers of soil. Embedded connection detection is performed for different soil layers, which is convenient for pulling the bottom rod down when collapse or hole falling occurs in different soil layers, triggering the pressure switch to be electrically connected with the external flashing light to generate an audible and visual alarm, which helps to detect the hidden dangers of collapse or cavities in the underground soil layer in advance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the positioning plate of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the vibration detection ring sleeve of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal structure of the tray of the utility model;

[0021] Figure 5 It is a schematic diagram of the connection structure between the middle sleeve and the top column of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the bottom column of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the rotating disk of the utility model;

[0024] Figure 8 It is a schematic diagram of the internal structure of the rotating disk of the utility model.

[0025] Legend: 1. Positioning disk; 101. Warning light; 102. Guide column; 103. Side disk; 104. Inner cone barrel; 2. Vibration detection ring sleeve; 201. Bolt sleeve; 202. Connecting shaft; 203. Connecting rod; 204. Tray; 205. Transparent cover; 206. Inner arc opening; 207. Power terminal; 208. Center column; 209. Metal ball; 3. Center sleeve; 301. Inner sleeve; 302. External flash light; 4. Top column; 401. Fixed flange; 402. Inner tube; 403. Through hole; 404. Limit sleeve; 5. Bottom column; 501. Sliding tube; 502. Sliding sleeve; 503. Rotating disk; 504. Rotating sheet; 505. Inner rotating ring; 506. Limiting arc groove; 507. Driven gear plate; 508. Traction line. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1: This embodiment is used to solve the problem that traditional surface settlement measurement devices usually detect the height changes of visible soil layers or rocks on the surface of the ground, lack actual detection of the local internal soil layers on the surface, resulting in settlement stratification or voids inside the surface of the area, so that the area is in danger of collapse after being subjected to changes in external pressure.

[0028] See also Figure 1 - Figure 8As shown, this embodiment is a measuring device for surface settlement of a coal mining area, comprising a positioning plate 1, a vibration detection ring sleeve 2 is slidably sleeved on the outer periphery of the positioning plate 1, a plurality of groups of trays 204 are arranged on the outer periphery of the vibration detection ring sleeve 2, and a metal ball 209 is arranged on the top of the tray 204, an inner cone barrel 104 is arranged at the bottom center of the positioning plate 1, a middle sleeve 3 is arranged on the top of the inner cone barrel 104, and a top column 4 is arranged through the middle of the middle sleeve 3, and a hole is drilled in the waiting detection area through an external device, and a suitable multi-section bottom column 5 is deployed according to the drilling depth, and the bottoms of the bottom columns 5 are connected one by one, and the connected bottom columns 5 are sequentially mixed into the borehole until the top of the bottom column 5 is connected to the bottom of the top column 4, and the sliding sleeve 502 on the sliding tube 501 is adjusted by angle and misaligned with the gap between the limiting sleeve 404, and the sliding tube 501 is inserted into the chamber between the inner tube 402 and the bottom wall of the top column 4, and the bottom structure of the bottom column 5 is the same as the bottom structure of the top column 4;

[0029] Guide columns 102 are symmetrically arranged on the outer walls of both sides of the positioning plate 1, side plates 103 are symmetrically arranged on the outer walls of the bottom of both ends of the positioning plate 1, and multiple groups of warning lights 101 are arranged on the top of the positioning plate 1. A conical cavity is arranged between the bottom of the inner cone barrel 104 and the positioning plate 1. When there is a collapse or a cavity in the underground soil layer, the collapsed or hollow soil drives the rotating piece 504 connected thereto, and the rotating piece 504 is forced to drag the bottom column 5 down, and the sliding pipe 501 is forced to slide down and squeeze the pressure switch, and the pressure switch is electrically connected to the external flashing light 302, and the external flashing light 302 emits an audible and visual alarm;

[0030] The inner walls of both sides of the vibration detection ring sleeve 2 are symmetrically recessed with inner arc openings 206, the tops of both ends of the vibration detection ring sleeve 2 are symmetrically provided with bolt sleeves 201, the outer peripheral wall of the vibration detection ring sleeve 2 is provided with a connecting shaft 202, and the outer periphery of the connecting shaft 202 is provided with a connecting rod 203 connected to the tray 204;

[0031] After waiting for the bottom column 5 and the top column 4 to be inserted into the drilled hole, adjust the positioning plate 1 to be fixed on the ground. After waiting for the positioning plate 1 to be fixed on the ground, connect the bolt sleeve 201 and the side plate 103 by bolts, and drive the bolt sleeve 201 and the vibration detection ring sleeve 2 to slide down axially by rotating the bolts, so that the whole vibration detection ring sleeve 2 slides down along the outer periphery of the positioning plate 1. The inner arc 206 contacts the guide column 102 to limit the sliding direction of the vibration detection ring sleeve 2 until the multiple groups of trays 204 are in stable contact with the detection ground. Open the transparent cover 205 and put the metal ball 209 on the top of the center column 208. A transparent cover 205 is provided on the outer side of the top of the tray 204. A center column 208 connected with the metal ball 209 is provided in the center of the top of the tray 204, and an electrical terminal 207 is provided on the top wall of the tray 204.

[0032] Embodiment 2: A measuring device for ground settlement in a coal mining area of ​​this embodiment comprises an inner tube 402 disposed at the bottom center of a top column 4, and a through hole 403 is disposed through the middle of the inner tube 402, a bottom column 5 is disposed at the bottom of the top column 4, a sliding tube 501 is disposed at the top of the bottom column 5, and a rotating disk 503 is disposed in the middle of the bottom column 5, and an inner rotating ring 505 is disposed inside the rotating disk 503;

[0033] An inner sleeve 301 connected to the top column 4 is arranged inside the middle sleeve 3, and multiple groups of external flashing lights 302 are embedded on the outer peripheral wall of the middle sleeve 3. A fixing flange 401 is arranged on the top and bottom outer walls of the top column 4. A limiting sleeve 404 close to the inner tube 402 is arranged on the bottom inner wall of the top column 4, and a pressure switch is arranged on the top inner wall of the limiting sleeve 404. When the soil generates a certain vibration and is transmitted to the metal ball 209 along the soil, the tray 204 and the center column 208, the metal ball 209 falls under the vibration and contacts the power terminal 207. The power terminal 207 is electrically connected to the alarm light 101, and the alarm light 101 is activated to emit an audible and visual alarm.

[0034] A sliding sleeve 502 is provided at the top of the sliding tube 501, and a plurality of rotating plates 504 are slidably embedded at the top and bottom of the outer periphery of the rotating disk 503. A limited arc groove 506 is provided at the middle of the outer periphery of the rotating disk 503. A driven toothed disk 507 meshing with the inner rotating ring 505 is embedded on the inner wall of the rotating disk 503, and a traction line 508 connected to the rotating plate 504 is provided on the outer periphery of the driven toothed disk 507. The traction line 508 connected to the rotating plate 504 is inserted into the through hole 403 through an external long rod, and the long rod penetrates the through hole 403 and engages with the inner rotating ring 505. The connection is made by rotating the long rod, which drives the inner rotating ring 505 to rotate. The inner rotating ring 505 is meshed with the driven gear plate 507. The driven gear plate 507 releases the limit on the rotating plate 504 through the traction line 508. A spring damper connected to the rotating plate 504 is arranged inside the limit arc groove 506. The spring damper pushes the rotating plate 504 to move outward and insert into the soil on the inner wall of the borehole, and contacts with the soil on the inner wall of the borehole, thereby completing the limit of the single group of base columns 5 and forming the connection and installation of the overall device.

[0035] In combination with Example 1 and Example 2, the multi-directionally arranged metal balls 209 can be used to receive vibrations of the ground soil layer, thereby generating a falling contact with the electrical terminal 207, causing the alarm light 101 to flash, thereby issuing an audible and visual alarm. At the same time, it can be used to detect the vibration direction, and embedded connection detection can be performed for different soil layers, so that when collapse or holes occur in different soil layers, the falling movement pulls the bottom rod down, triggering the pressure switch to electrically connect with the external flash light 302 to generate an audible and visual alarm, which helps to detect the hidden dangers of collapse or voids in the underground soil layer in advance.

[0036] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for measuring ground subsidence in a coal mining area, comprising a positioning plate (1), characterized in that: The outer periphery of the positioning plate (1) is slidably sleeved with a vibration detection ring sleeve (2), the outer periphery of the vibration detection ring sleeve (2) is provided with multiple groups of trays (204), and the top of the tray (204) is provided with a metal ball (209), the bottom center of the positioning plate (1) is provided with an inner cone barrel (104), the top of the inner cone barrel (104) is provided with a middle sleeve (3), and the middle of the middle sleeve (3) is penetrated by a top column (4); An inner tube (402) is arranged at the center of the bottom of the top column (4), and a through hole (403) is arranged through the middle of the inner tube (402); a bottom column (5) is arranged at the bottom of the top column (4), a sliding tube (501) is arranged at the top of the bottom column (5), and a rotating disk (503) is arranged in the middle of the bottom column (5), and an inner rotating ring (505) is arranged inside the rotating disk (503).

2. A device for measuring ground subsidence in a coal mining area according to claim 1, characterized in that: Guide pillars (102) are symmetrically arranged on the outer walls of both sides of the positioning plate (1), side plates (103) are symmetrically arranged on the outer walls of the bottom of both ends of the positioning plate (1), a plurality of groups of warning lights (101) are arranged on the top of the positioning plate (1), and a conical cavity is arranged between the bottom of the inner cone barrel (104) and the positioning plate (1).

3. The device for measuring ground subsidence in a coal mining area according to claim 1, characterized in that: The inner walls of both sides of the vibration detection ring sleeve (2) are symmetrically recessed with inner arc openings (206), the tops of both ends of the vibration detection ring sleeve (2) are symmetrically provided with bolt sleeves (201), the outer peripheral wall of the vibration detection ring sleeve (2) is provided with a connecting shaft (202), and the outer periphery of the connecting shaft (202) is provided with a connecting rod (203) connected to the tray (204).

4. A device for measuring ground subsidence in a coal mining area according to claim 3, characterized in that: A transparent cover (205) is arranged on the outside of the top of the tray (204), a central column (208) connected to a metal ball (209) is arranged at the center of the top of the tray (204), and an electrical terminal (207) is arranged on the top wall of the tray (204).

5. The device for measuring ground subsidence in a coal mining area according to claim 1, characterized in that: An inner sleeve (301) connected to the top column (4) is arranged inside the middle sleeve (3); a plurality of groups of external flashing lights (302) are embedded on the outer peripheral wall of the middle sleeve (3); fixing flanges (401) are arranged on the top and bottom outer walls of the top column (4); a limiting sleeve (404) close to the inner tube (402) is arranged on the bottom inner wall of the top column (4); and a pressure switch is arranged on the top inner wall of the limiting sleeve (404).

6. The device for measuring ground subsidence in a coal mining area according to claim 1, characterized in that: A sliding sleeve (502) is arranged at the top of the sliding tube (501); a plurality of rotating plates (504) are slidably embedded at the top and bottom of the outer periphery of the rotating disk (503); a limiting arc groove (506) is arranged at the middle of the outer periphery of the rotating disk (503); a driven toothed disk (507) meshing with the inner rotating ring (505) is embedded on the inner wall of the rotating disk (503); and a traction line (508) connected to the rotating plates (504) is arranged on the outer periphery of the driven toothed disk (507).

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