Roof separation instrument for monitoring stability of surrounding rock of fully-mechanized face of over-fold structure belt

Abstract

The invention relates to the technical field of coal mining, and discloses a roof separation instrument for monitoring the stability of surrounding rock with a fully mechanized face of an over-fold structure, which comprises a three-way pipe, an anchoring cylinder is fixedly connected to the top of the three-way pipe, a plurality of steel wires are placed in the anchoring cylinder, measuring cylinders are arranged on two sides of the three-way pipe, and the two measuring cylinders are different in length. The inner wall of each measuring cylinder is fixedly connected with a supporting plate, the side wall of the supporting plate is fixedly connected with an air bag, the side portion of the air bag is fixedly connected with a pressing rod, the supporting plate is provided with an air inlet and outlet mechanism, the side end of each steel wire is divided into two strands, the side wall of the supporting plate is provided with a plurality of round holes, the pressing rod is provided with a plurality of wire holes, and the side end of each strand of steel wire movably passes through the round holes and the wire holes in sequence. The two strands of steel wires are arranged on the two sides of the air bag, in the aspect of cost control, an annular scale ring is replaced by the semicircular arc-shaped plate, the structure is more simplified, materials are more optimized, the manufacturing cost can be reduced, and meanwhile loss caused by frequent instrument replacement is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, and more particularly to a roof separation instrument for monitoring the stability of surrounding rocks of a fully mechanized mining face in a folded structural belt. Background Art

[0002] Mining through a folded structural belt with a fully mechanized face means that in a fully mechanized coal mining face, when encountering a folded structure in a coal seam, the coal mining machine needs to adjust its operating angle and method to adapt to the undulations of the coal seam to ensure safe and efficient passage through this geological structure area. Folds are geological phenomena in which rock layers in the earth's crust bend and deform due to horizontal compression, including two basic types: anticlines and synclines. In a folded structural belt, the thickness, inclination, and roof and floor conditions of the coal seam may change significantly, posing a challenge to coal mining. The roof delamination meter, also known as the roof delamination indicator, is a special monitoring instrument used to monitor the movement of the roof rock layer. It can display the delamination of the roof rock layer within the length range of the anchor rod and outside the same range of the anchor rod. Through comprehensive roof delamination observation, the roof delamination observation plays a certain guiding and warning role in the support and reform of the anchor network tunnel.

[0003] In the Chinese patent publication number CN111255518B, a roof separation meter alarm device and a coal mine roof monitoring system are mentioned. Before the roof separation meter alarm device is installed, holes are drilled in the coal mine roof to facilitate the insertion and fixation of anchors. If the coal mine roof sinks, causing the measuring rope to move, the movement of the measuring rope is obtained in real time through the displacement sensor, and the host computer is connected through the network interface to obtain the preset movement. When the movement of the measuring rope exceeds the preset movement, an alarm is issued through the voice alarm panel, and an alarm prompt is sent to the host computer at the same time. In this way, real-time monitoring is achieved. That is, when the movement is too large and the roof is separated, an alarm will be issued in time and continuously to remind management personnel and passers-by to pay attention to safety. If it is not handled, the alarm will continue to be issued, which can expose the problem at the first time, and the underground personnel can avoid the separation position, so that the roof separation can be handled in time.

[0004] It is obvious that the above technical solution is only applicable to mine roofs with a high degree of flatness, but is not applicable to roofs with over-folded structural belts. Over-folded structural belts have obvious curvatures and cannot fit into the existing roof delamination meter, making it impossible for the roof delamination meter to provide timely warnings, and thus unable to protect the lives of mine workers. Summary of the Invention

[0005] The present invention provides a roof delamination instrument for monitoring the stability of surrounding rocks of a fully mechanized mining face in a folded structural zone, which solves the technical problem in the related art that the roof of the folded structural zone cannot fit the roof delamination instrument.

[0006] The present invention provides a roof delamination instrument for monitoring the surrounding rock stability of a fully mechanized mining face in a folded structural belt, comprising a tee, an anchoring tube fixedly connected to the top of the tee, a plurality of steel wires placed in the anchoring tube, measuring tubes provided on both sides of the tee, the two measuring tubes being of different lengths, a support plate fixedly connected to the inner wall of each measuring tube, an air bag fixedly connected to the side wall of the support plate, a pressure rod fixedly connected to the side of the air bag, and an air inlet and outlet mechanism provided on the support plate; The side end of each steel wire is divided into two strands, the side wall of the support plate is provided with multiple round holes, and the pressure rod is provided with multiple wire holes. The side end of each steel wire moves through the round hole and the wire hole in turn, and the two steel wires are arranged on both sides of the airbag.

[0007] Preferably, the top of the anchoring tube is fixedly connected with an anchor piece, and the tops of the multiple steel wires are fixedly connected with positioning anchor pieces.

[0008] Preferably, a plurality of air holes are opened on the bottom wall of the tee pipe, a limiting sleeve is symmetrically fixedly connected to the inner wall of the tee pipe, a measuring cylinder is rotatably connected inside the limiting sleeve, a plurality of warning lines are marked on the outer wall of the measuring cylinder, and the interior of the plurality of warning lines is filled with luminous materials of different colors.

[0009] Preferably, each measuring tube is symmetrically provided with a sliding groove on the outside, and a sliding rod and a support rod are clamped in the sliding groove, and multiple sliding rods and support rods are arranged alternately at intervals. One side of the dustproof plate is hinged on both sides of the sliding rod, and the other side of the dustproof plate is hinged on the support rod. Each support rod is fixedly connected to a plurality of connecting rods on the side facing the airbag, and the side end of the connecting rod is fixedly connected to the outer wall of the airbag.

[0010] Preferably, the air inlet and outlet mechanism includes a one-way air inlet valve and an air outlet groove. The side wall of the one-way air inlet valve is fixedly connected to the support plate, and the side wall of the one-way air inlet valve is connected to the airbag and installed. The air outlet groove is opened on the support plate, and the inside of the air outlet groove is connected to the airbag.

[0011] Preferably, a magnetic plate is hinged on the top wall of the air outlet groove, a sealing gasket is fixedly connected to the outside of the magnetic plate, and the outer wall of the sealing gasket is tightly in contact with the air outlet groove. A limiting tube is provided in the air outlet groove, and the outer wall of the limiting tube is fixedly connected to the inner wall of the air outlet groove through a vertical rod. A magnet ball is placed in the limiting tube, and the magnetic plate and the magnet ball repel each other magnetically.

[0012] Preferably, a screw hole is provided in the middle of the pressure rod, a pressure plate is provided on the side of the pressure rod, a bolt is inserted on the pressure plate, and the side end of the bolt is movably connected in the screw hole.

[0013] Preferably, both ends of the pressure rod are movable and extend outward through the sliding groove, and the side ends of the pressure rod are movably connected to the limiting cylinder through bearings. The limiting grooves are symmetrically provided on the inner wall of the limiting cylinder, and the limiting plate is clamped in the limiting groove. The bottom of the limiting plate is fixedly connected to an arc plate, and the top of the limiting plate is fixedly connected to a compression spring, and the top of the compression spring is fixedly connected to the top wall of the limiting cylinder.

[0014] Preferably, the arc plate is arranged outside the measuring tube, a display slot is opened in the middle of the bottom wall of the arc plate, a reading tube is arranged inside the arc plate, and the reading tube is arranged directly above the display slot.

[0015] Preferably, both sides of the reading tube are fixedly connected with a rotating rod, and the side ends of the rotating rod are movably connected to the inner wall of the arc plate through bearings. The outside of the reading tube is evenly divided into nine equal parts, and each equal part of the outside of the reading tube is provided with a digital mark, and the digital mark is coated with luminous material. Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts the technical means of cooperating with the measuring tube and the air bag. The measuring tube is bent to better fit the roof of the mine tunnel at the fold structural zone, so that the contact area between the measuring tube and the roof is larger. The air bag is inflated by using a steel wire, and the anchor tube fixedly connected to the roof moves to drive the pressure rod to compress the air bag, thereby driving the reading tube to move, and real-time monitoring of the mine tunnel roof is performed. It overcomes the technical deficiency of the existing technology that the top wall of the measuring tube cannot fit the roof at the fold structural zone, resulting in erroneous monitoring data, and thus achieves the technical effect of more accurately monitoring the collapse of the roof. In addition, from the perspective of economic benefits, the spring in the original monitoring instrument is replaced with the air bag design, which effectively avoids the problem that the metal spring is prone to rust and elasticity reduction in a humid mine tunnel, thereby extending the service life of the device and reducing the maintenance investment of the device.

[0016] The present invention adopts the technical means of cooperating with an airbag and multiple dust-proof plates. The position of the dust-proof plate is adjusted by the contraction of the airbag, and the chute is quickly and conveniently shielded. This overcomes the technical deficiency of the existing technology that the chute is directly exposed in the mine tunnel and easily accumulates impurities, thereby achieving the technical effect of effectively preventing dust from the measuring tube, making the movement of the airbag smoother and the monitoring data more accurate.

[0017] The present invention adopts a technical means of cooperating with the air inlet and outlet mechanism and the airbag. The excess gas generated by the compression of the airbag pushes the magnet ball to move, thereby moving the magnetic suction plate, so that the gas is discharged from the air outlet groove, overcoming the shortcomings of the existing technology, and making the airbag convenient to inflate and deflate, and the length change of the airbag is more obvious, achieving the technical effect of more accurate monitoring data of the device.

[0018] The present invention uses technical means that cooperate with the air bag, pressure rod, limit cylinder, arc plate and reading cylinder. The pressure rod drives the arc plate to move outside the measuring cylinder. Due to the friction force, the reading cylinder rotates and the digital mark changes accordingly, making the monitoring process continuous and reliable, overcoming the shortcomings of the existing technology. From the perspective of cost control, the circular scale ring is replaced by the semicircular arc plate in the present invention, the structure is simpler, the material is more optimized, the manufacturing cost can be reduced, and the loss caused by frequent replacement of instruments can be reduced. From the perspective of safety benefits, the continuity and accuracy of monitoring are improved, the roof accidents caused by missing or misjudgment of data are reduced, and the safety of miners is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the measuring tube of the present invention when it is in a flipped state; Figure 3 This is a schematic diagram of the overall structure of the measuring tube of the present invention when viewed from the front; Figure 4 This is a schematic diagram of the interior of the measuring tube of the present invention when viewed from above; Figure 5 This is a schematic diagram of the overall structure of the present invention when multiple dustproof panels are in a folded state; Figure 6 It is a schematic diagram of the overall structure of the air inlet and outlet mechanism of the present invention; Figure 7 This is a schematic diagram of the overall structure of the arc plate and the reading tube of the present invention; Figure 8 It is a schematic diagram of the overall internal structure of the curved plate of the present invention.

[0020] Figure: 1, tee; 2, anchor tube; 3, anchor; 4, positioning anchor; 5, steel wire; 6, measuring tube; 601, limit sleeve; 602, warning line; 7, support plate; 701, round hole; 8, air bag; 9, air inlet and outlet mechanism; 91, one-way air inlet valve; 92, air outlet groove; 93, magnetic plate; 94, sealing gasket; 95, limit tube; 96, vertical rod; 97, magnetic ball; 10, slide Slot; 11. Slide rod; 12. Dustproof plate; 13. Support rod; 14. Connecting rod; 15. Pressure rod; 1501. Wire hole; 1502. Screw hole; 16. Pressure plate; 17. Bolt; 18. Limit cylinder; 1801. Limit slot; 19. Arc plate; 1901. Display slot; 20. Reading cylinder; 2001. Rotating rod; 2002. Digital identification; 21. Limit plate; 22. Compression spring. DETAILED DESCRIPTION

[0021] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. Furthermore, features described in some examples may be combined in other examples.

[0022] like Figure 1 - Figure 8 As shown, this embodiment provides a roof delamination instrument for monitoring the surrounding rock stability of a fully mechanized mining face in a folded structural belt, comprising a tee pipe 1, an anchoring tube 2 fixedly connected to the top of the tee pipe 1, a plurality of steel wires 5 placed in the anchoring tube 2, measuring tubes 6 are provided on both sides of the tee pipe 1, the two measuring tubes 6 are of different lengths, the inner wall of each measuring tube 6 is fixedly connected to a support plate 7, the side wall of the support plate 7 is fixedly connected to an air bag 8, the side of the air bag 8 is fixedly connected to a pressure rod 15, and an air inlet and outlet mechanism 9 is provided on the support plate 7; It should be noted that the side end of each steel wire 5 is divided into two strands, a plurality of circular holes 701 are opened on the side wall of the support plate 7, and a plurality of wire holes 1501 are opened on the pressure rod 15. The side end of each steel wire 5 moves through the circular hole 701 and the wire hole 1501 in turn, and the two strands of steel wire 5 are arranged on both sides of the airbag 8.

[0023] It should be noted that an anchor piece 3 is fixedly connected to the top of the anchor tube 2 , and a positioning anchor piece 4 is fixedly connected to the top of each of the multiple steel wires 5 .

[0024] The working principle and beneficial effects of the above technical solution are: Working principle: During the use of the present invention, workers first drill holes in the coal mine roof. The diameter of the drill hole should be larger than the diameter of the anchor tube 2, and the depth of the drill hole should be greater than the length of the anchor tube 2. Secondly, workers conduct a comprehensive and detailed quality inspection of all components such as the tee pipe 1, the anchor tube 2, the positioning anchor 4, the measuring tube 6 and the air bag 8 to ensure that each component has no damage, deformation or other defects to ensure that the device can operate normally and improve the safety of the coal mine mining process. After the preparation work, it is determined whether the coal mine roof located on the drill hole is a syncline or anticline, and then the position of the measuring tube 6 is adjusted. In the syncline state, the two measuring tubes 6 bend downward, and in the anticline state, the two measuring tubes 6 bend upward. The measuring tube 6 can be directly rotated so that the measuring tube 6 can better abut against the roof during monitoring work, the contact surface is larger, and the monitoring effect is better. Multiple fixed tubes are placed on the top plate. The positioning anchor 4 is inserted and fixed in the corresponding position. It should be noted that the positioning anchor 4 inserted in the deeper position should be connected to the steel wire 5 in the longer measuring tube 6. During the insertion process, the worker tightens the steel wire 5 to drive the pressure rod 15 to move, so that the pressure rod 15 compresses the airbag 8, and the airbag 8 is exhausted outward, forming a negative pressure inside. After the two positioning anchors 4 are installed according to the above steps, the anchor tube 2 is inserted into the drill hole to complete the fixation. The worker pulls the steel wire 5 extending to the outside of the measuring tube 6 to re-inflate the airbag 8. The final length of the steel wire 5 is determined according to the monitoring position required, the excess steel wire 5 is cut off, and the steel wire 5 connected to the measuring tube 6 is fixed. The entire device starts monitoring. When the coal mine roof collapses, the anchor tube 2 moves downward, and the steel wire 5 will drive the pressure rod 15 to move on the measuring tube 6.

[0025] Beneficial effect: The present invention adopts the technical means of cooperating the measuring tube 6 and the air bag 8. The measuring tube 6 is bent to better fit the roof of the mine tunnel at the fold structural zone, so that the contact area between the measuring tube 6 and the roof is larger. The air bag 8 is inflated by the steel wire 5, and the anchor tube 2 fixedly connected to the roof moves, driving the pressure rod 15 to compress the air bag 8, thereby driving the reading tube 20 to move, and real-time monitoring of the mine tunnel roof is performed. It overcomes the technical deficiency of the existing technology that the top wall of the measuring tube 6 cannot fit the roof at the fold structural zone, resulting in erroneous monitoring data, and thus achieves the technical effect of more accurate monitoring of roof collapse. In addition, from the perspective of economic benefits, the design of replacing the spring in the original monitoring instrument with the air bag 8 effectively avoids the problem that the metal spring is prone to rust and elasticity reduction in a humid mine tunnel, thereby extending the service life of the device and reducing the maintenance investment of the device.

[0026] In a specific embodiment: each measuring tube 6 is symmetrically provided with a slide groove 10 on the outside, and a slide rod 11 and a support rod 13 are clamped in the slide groove 10, and multiple slide rods 11 and support rods 13 are arranged alternately, and one side of the dustproof plate 12 is hinged on both sides of the slide rod 11, and the other side of the dustproof plate 12 is hinged on the support rod 13, and each support rod 13 is fixedly connected to a plurality of connecting rods 14 on the side facing the airbag 8, and the side end of the connecting rod 14 is fixedly connected to the outer wall of the airbag 8.

[0027] The working principle and beneficial effects of the above technical solution are: Working principle: During the use of the present invention, when the airbag 8 is inflated, multiple dustproof plates 12 are neatly arranged in the chute 10 to seal the chute 10, which can effectively prevent ore from entering the measuring tube 6 and affecting the movement of the airbag 8. The monitoring data is more accurate. As the top plate collapses downward, the anchor tube 2 moves downward, causing the pressure rod 15 to compress the airbag 8. The airbag 8 is compressed and its length becomes shorter, driving multiple support rods 13 to approach each other. At this time, the dustproof plates 12 rotate and approach each other to form an angle. The closer the support rods 13 are, the smaller the angle is, and the closer the dustproof plates 12 are. At this time, the exposed part of the chute 10 will not affect the measurement data even if impurities enter. After the device is used, it can be cleaned centrally.

[0028] Beneficial effect: The present invention adopts the technical means of cooperating with the airbag 8 and multiple dustproof plates 12. The position of the dustproof plate 12 is adjusted by the contraction of the airbag 8, and the chute 10 is quickly and conveniently shielded. It overcomes the technical deficiency of the prior art that the chute 10 is directly exposed in the mine tunnel and easily accumulates impurities, thereby achieving the technical effect of effectively preventing dust from the measuring tube 6, making the movement of the airbag 8 smoother and the monitoring data more accurate.

[0029] In a specific embodiment: the air inlet and outlet mechanism 9 includes a one-way air inlet valve 91 and an air outlet groove 92. The side wall of the one-way air inlet valve 91 is fixedly connected to the support plate 7, and the side wall of the one-way air inlet valve 91 is connected and installed with the airbag 8. The air outlet groove 92 is opened on the support plate 7, and the interior of the air outlet groove 92 is connected with the airbag 8.

[0030] It should be noted that a magnetic plate 93 is hingedly connected to the top wall of the air outlet groove 92, a sealing gasket 94 is fixedly connected to the outside of the magnetic plate 93, and the outer wall of the sealing gasket 94 is in close contact with the air outlet groove 92. A limiting tube 95 is provided in the air outlet groove 92, and the outer wall of the limiting tube 95 is fixedly connected to the inner wall of the air outlet groove 92 through a vertical rod 96. A magnetic ball 97 is placed in the limiting tube 95, and the magnetic plate 93 and the magnetic ball 97 repel each other magnetically.

[0031] The working principle and beneficial effects of the above technical solution are: Working principle: During use of the present invention, the pressure rod 15 will gradually approach the tee pipe 1 as the anchor tube 2 moves downward, compressing the airbag 8. The airbag 8 is squeezed and the gas is discharged outward. The gas pushes the magnet ball 97 to move in the limiting tube 95. Due to the repulsive force, the magnetic plate 93 is pushed to move. At this time, a gap is generated in the air outlet groove 92, and the gas in the airbag 8 overflows. After the excess gas is discharged, the repulsive force weakens, the magnet ball 97 is reset, and the magnetic plate 93 is also reset, and the air outlet groove 92 is re-sealed. It should be noted that the length of the airbag 8 in the longer measuring tube 6 is correspondingly longer. According to the proportional setting, the anchor tube 2 descends a distance, and the reduction drives the pressure rod 15 to move. The excess gas generated after the airbag 8 is compressed can push the magnet ball 97 to move.

[0032] Beneficial effect: The present invention adopts the technical means of cooperating the air inlet and outlet mechanism 9 with the airbag 8. The excess gas generated by the compression of the airbag 8 pushes the magnet ball 97 to move, thereby moving the magnetic suction plate 93, so that the gas is discharged from the air outlet groove 92, overcoming the shortcomings of the existing technology, and making the airbag 8 convenient to inflate and deflate, and the length change of the airbag 8 is more obvious, achieving the technical effect of more accurate monitoring data of the device.

[0033] In a specific embodiment: a plurality of air holes are opened on the bottom wall of the tee pipe 1, a limiting sleeve 601 is symmetrically fixedly connected to the inner wall of the tee pipe 1, a measuring cylinder 6 is rotatably connected inside the limiting sleeve 601, a plurality of warning lines 602 are marked on the outer wall of the measuring cylinder 6, and the interior of the plurality of warning lines 602 is filled with luminous materials of different colors.

[0034] It should be noted that a screw hole 1502 is provided in the middle of the pressure rod 15 , and a pressure plate 16 is provided on the side of the pressure rod 15 . A bolt 17 is inserted into the pressure plate 16 , and the side end of the bolt 17 is movably connected to the screw hole 1502 .

[0035] It should be noted that both ends of the pressure rod 15 can be movably extended outward through the slide groove 10, and the side end of the pressure rod 15 is movably connected to the limiting cylinder 18 through a bearing. The limiting groove 1801 is symmetrically opened on the inner wall of the limiting cylinder 18, and the limiting plate 21 is clamped in the limiting groove 1801. The bottom of the limiting plate 21 is fixedly connected to the arc plate 19, and the top of the limiting plate 21 is fixedly connected to the compression spring 22. The top of the compression spring 22 is fixedly connected to the inner top wall of the limiting cylinder 18.

[0036] In addition, the arc plate 19 is arranged outside the measuring tube 6, and a display slot 1901 is opened in the middle of the bottom wall of the arc plate 19. A reading tube 20 is arranged in the arc plate 19, and the reading tube 20 is arranged directly above the display slot 1901.

[0037] Specifically, a rotating rod 2001 is fixedly connected to both sides of the reading tube 20, and the side end of the rotating rod 2001 is movably connected to the inner wall of the arc plate 19 through a bearing. The outside of the reading tube 20 is evenly divided into nine equal parts, and a digital mark 2002 is set on each equal part of the outside of the reading tube 20, and the digital mark 2002 is coated with luminous material.

[0038] The working principle and beneficial effects of the above technical solution are: Working principle: During use, the present invention can quickly realize the flipping of the measuring tube 6 by the technical means of cooperating with the limiting sleeve 601 and the measuring tube 6, so as to better adapt to the top plate at the folded structural zone, and divide the measuring tube 6 by multiple warning lines 602. The closer to the three-way pipe 1, the more obvious the color needs to be filled in the warning line 602. By providing a pressure plate 16, the steel wire 5 passing through the wire hole 1501 is placed between the pressure plate 16 and the pressure rod 15, and the bolt 17 is rotated. The bolt 17 pushes the pressure plate 16 to fit tightly on the pressure rod 15, thereby fixing the position of the steel wire 5. It is convenient, fast, time-saving and labor-saving. The mutual cooperation of the cylinder 18, the limit plate 21 and the compression spring 22 allows the curved plate 19 to have space for flexible adjustment, and also allows the outside of the reading cylinder 20 to always have a contact surface with the measuring cylinder 6, which is convenient for the rotation of the reading cylinder 20. The pressure rod 15 is driven to move by the contraction of the airbag 8, and the pressure rod 15 drives the curved plate 19 to move, and the curved plate 19 drives the reading cylinder 20 to move outside the measuring cylinder 6. At this time, the reading cylinder 20 is in contact with the outer wall of the measuring cylinder 6, and rotates accordingly, causing the digital mark 2002 to change. The worker can intuitively view the changes in the digital mark 2002 through the display slot 1901, which is convenient for real-time monitoring and recording.

[0039] Beneficial effects: The present invention uses technical means of cooperating with the airbag 8, the pressure rod 15, the limit cylinder 18, the arc plate 19 and the reading cylinder 20. The pressure rod 15 drives the arc plate 19 to move outside the measuring cylinder 6. Due to the friction force, the reading cylinder 20 rotates, and the digital mark 2002 changes accordingly, making the monitoring process continuous and reliable, overcoming the shortcomings of the existing technology. From the perspective of cost control, the circular scale ring is replaced by the semicircular arc plate 19 in the present invention, the structure is simpler, the material is more optimized, the manufacturing cost can be reduced, and the loss caused by frequent replacement of instruments is reduced. From the perspective of safety benefits, the continuity and accuracy of monitoring are improved, the roof accidents caused by missing or misjudgment of data are reduced, and the safety of miners is guaranteed.

[0040] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roof delamination instrument for monitoring the stability of surrounding rock in a fully mechanized mining face in a folded structural belt, comprising a tee pipe (1), the top of which is fixedly connected to an anchoring tube (2), wherein a plurality of steel wires (5) are placed in the anchoring tube (2), and characterized in that: Both sides of the three-way pipe (1) are provided with measuring cylinders (6), the two measuring cylinders (6) are of different lengths, the inner wall of each measuring cylinder (6) is fixedly connected to a support plate (7), the side wall of the support plate (7) is fixedly connected to an air bag (8), the side of the air bag (8) is fixedly connected to a pressure rod (15), and an air inlet and outlet mechanism (9) is provided on the support plate (7); The side end of each steel wire (5) is divided into two strands, a plurality of circular holes (701) are opened on the side wall of the support plate (7), and a plurality of wire holes (1501) are opened on the pressure rod (15). The side end of each steel wire (5) moves through the circular hole (701) and the wire hole (1501) in sequence, and the two strands of steel wire (5) are arranged on both sides of the airbag (8).

2. A roof delamination instrument for monitoring surrounding rock stability in a fully-mechanized mining face in a folded structural belt according to claim 1, characterized in that: The top of the anchoring tube (2) is fixedly connected to an anchor piece (3), and the tops of the plurality of steel wires (5) are all fixedly connected to positioning anchor pieces (4).

3. The roof delamination instrument for monitoring surrounding rock stability in a fully mechanized mining face in a folded structural belt according to claim 1, characterized in that: The bottom wall of the three-way pipe (1) is provided with a plurality of air holes, the inner wall of the three-way pipe (1) is symmetrically fixedly connected to a limiting sleeve (601), the limiting sleeve (601) is rotatably connected to a measuring cylinder (6), the outer wall of the measuring cylinder (6) is marked with a plurality of warning lines (602), and the interiors of the plurality of warning lines (602) are filled with luminous materials of different colors.

4. The roof separation instrument for monitoring surrounding rock stability in a fully mechanized mining face in a folded structural belt according to claim 1, characterized in that: Each measuring tube (6) is symmetrically provided with a slide groove (10) on the outside, and a slide rod (11) and a support rod (13) are clamped in the slide groove (10), and a plurality of slide rods (11) and support rods (13) are arranged alternately at intervals. One side of the dustproof plate (12) is hinged on both sides of the slide rod (11), and the other side of the dustproof plate (12) is hinged on the support rod (13). Each support rod (13) is fixedly connected to a plurality of connecting rods (14) on the side facing the airbag (8), and the side ends of the connecting rods (14) are fixedly connected to the outer wall of the airbag (8).

5. The roof separation instrument for monitoring surrounding rock stability in a fully mechanized mining face in a folded structural belt according to claim 1, characterized in that: The air inlet and outlet mechanism (9) includes a one-way air inlet valve (91) and an air outlet groove (92). The side wall of the one-way air inlet valve (91) is fixedly connected to the support plate (7), and the side wall of the one-way air inlet valve (91) is connected and installed with the air bag (8). The air outlet groove (92) is opened on the support plate (7), and the interior of the air outlet groove (92) is connected with the air bag (8).

6. The roof separation instrument for monitoring surrounding rock stability in a fully mechanized mining face in a folded structural belt according to claim 5, characterized in that: The top wall of the air outlet groove (92) is hinged with a magnetic plate (93), the outside of the magnetic plate (93) is fixedly connected with a sealing gasket (94), and the outer wall of the sealing gasket (94) is tightly abutted against the air outlet groove (92), a limiting tube (95) is provided in the air outlet groove (92), the outer wall of the limiting tube (95) is fixedly connected to the inner wall of the air outlet groove (92) through a vertical rod (96), a magnetic ball (97) is placed in the limiting tube (95), and the magnetic plate (93) and the magnetic ball (97) repel each other magnetically.

7. The roof separation instrument for monitoring surrounding rock stability in a fully mechanized mining face in a folded structural belt according to claim 1, characterized in that: A screw hole (1502) is provided in the middle of the pressure rod (15), a pressure plate (16) is provided on the side of the pressure rod (15), a bolt (17) is inserted into the pressure plate (16), and the side end of the bolt (17) is movably connected to the screw hole (1502).

8. The roof separation instrument for monitoring surrounding rock stability in a fully-mechanized mining face in a folded structural belt according to claim 1, characterized in that: Both ends of the pressure rod (15) are movable and extend outward through the slide groove (10), and the side ends of the pressure rod (15) are movably connected to the limiting cylinder (18) through bearings. The inner wall of the limiting cylinder (18) is symmetrically provided with limiting grooves (1801), and the limiting plate (21) is clamped in the limiting groove (1801). The bottom of the limiting plate (21) is fixedly connected to the arc plate (19), and the top of the limiting plate (21) is fixedly connected to the compression spring (22), and the top end of the compression spring (22) is fixedly connected to the inner top wall of the limiting cylinder (18).

9. The roof separation instrument for monitoring surrounding rock stability in a fully mechanized mining face in a folded structural belt according to claim 8, characterized in that: The arc plate (19) is arranged outside the measuring tube (6), a display slot (1901) is provided in the middle of the bottom wall of the arc plate (19), a reading tube (20) is provided inside the arc plate (19), and the reading tube (20) is arranged directly above the display slot (1901).

10. The roof separation instrument for monitoring surrounding rock stability in a fully mechanized mining face in a folded structural belt according to claim 9, characterized in that: Both sides of the reading tube (20) are fixedly connected to a rotating rod (2001), and the side end of the rotating rod (2001) is movably connected to the inner wall of the arc plate (19) through a bearing. The outside of the reading tube (20) is evenly spaced and divided into nine equal parts. A digital mark (2002) is provided on each equal part of the outside of the reading tube (20), and the digital mark (2002) is coated with a luminous material.

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