Protective device for short-distance efficient mining of coal mine

Abstract

The utility model relates to the field of coal mining protection, and discloses a coal mine short-distance efficient mining protection device. According to the device, a functional box body is arranged at the position, close to the wall, of the lower surface of the supporting frame, a lower connecting plate is fixedly connected to the bottom end of the functional box body, a marking transverse plate is arranged on the lower surface of the lower connecting plate, warning scale lines are arranged on the surface of a warning wall panel, and the warning scale lines are in sliding connection with the surface of the marking transverse plate. During use, after the supporting frame and the warning wall panel are installed, the marking transverse plate is marked at the initial position of the warning scale line, and when the supporting frame slightly descends, the supporting frame can descend together with the functional box body, so that the marking transverse plate moves on the surface of the warning scale line; whether the supporting frame sinks or not can be distinguished by directly observing the mark of the marking transverse plate, so that related personnel can take measures in time, and the safety of the whole device in the using process is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of coal mining protection, specifically a coal mine close-range efficient mining protection device. BACKGROUND

[0002] The coal mine close-range mining support device is a support device specially designed for coal mine close-range mining operations, aiming to ensure the stability of the mine under complex geological conditions, prevent roof collapse, coal wall spalling and other accidents caused by mining activities, and protect the safety of workers. The support device forms a stable protective layer by setting a support structure between the mine roof and the coal wall. When the stress of the mine roof or coal wall changes, the support device can provide support in time to prevent the roof from sinking and the coal wall from breaking.

[0003] As disclosed in the application with publication number CN220645978U, a close-range coal seam roadway roof support device includes a hydraulic lifting rod and a support beam. The top end of the hydraulic lifting rod is threadedly installed with the bottom end of the support beam. Two hydraulic lifting rods are each installed with two locking anchor rods at the bottom. The top end of the support beam is installed with anchor rods at equal distances. The device is provided with a hydraulic lifting rod and a connecting plate. When the support beam is used to support the roof, the two hydraulic lifting rods are aligned and installed through the connecting plate one and the connecting plate two at the bottom end of the support beam. The locking connecting hole one and the connecting hole two are installed with bolts. At this time, the hydraulic lifting rod is connected with the support beam. The hydraulic lifting rod is raised upward to drive the support beam upward to support the roof. When not in use, it can be disassembled for repeated use, facilitating installation.

[0004] However, during the implementation of the application, it was found that the application lacks a deformation indicating device. When the support beam slightly descends, it cannot be obviously observed, thereby affecting the safety of the overall use. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to solve the problems mentioned above, and to provide a coal mine close-range efficient mining protection device.

[0006] The technical scheme adopted by the present application is as follows: a coal mine close-range efficient mining protection device, comprising a lifting base and a warning wall panel, the top of the lifting base is provided with a lifting rod, the top end of the lifting rod is connected with a first mounting plate, the upper surface of the first mounting plate is connected with a second mounting plate through bolts, the upper surface of the second mounting plate is fixedly installed with a support frame, the lower surface of the support frame is provided with a function box body near the wall, the bottom end of the function box body is fixedly connected with a lower connecting plate, the lower surface of the lower connecting plate is provided with a marking horizontal plate, the surface of the warning wall panel is provided with a warning scale line, and the surface of the warning scale line is slidingly connected with the surface of the marking horizontal plate.

[0007] By adopting the technical scheme, when the support frame and the warning wall panel are installed, the mark horizontal plate is marked at the initial position of the warning scale line, when the support frame slightly descends, the support frame and the functional box body descend together, so that the mark horizontal plate moves on the surface of the warning scale line, whether the support frame descends can be distinguished by directly observing the mark of the mark horizontal plate, so that relevant personnel can take measures in time, and the safety during use of the overall device is improved.

[0008] As a further description of the above technical scheme, the functional box body is provided with a breathable net on the side away from the wall, an inside plug-in box is movably plugged in the inside of the functional box body, moisture-absorbing functional particles are filled in the inside of the inside plug-in box, and a side breathable film is arranged on the side of the inside plug-in box close to the breathable net.

[0009] By adopting the above technical scheme, the moisture-absorbing functional particles can absorb moisture in the support area through the side breathable film and the breathable net, so as to ensure the dryness of the support area to a certain extent.

[0010] As a further description of the above technical scheme, a magnetic attraction fixing ring is arranged at the opening of the side surface of the functional box body, an outer fixed panel is connected to the outer end of the inside plug-in box, and the outer fixed panel and the magnetic attraction fixing ring are mutually adsorbed and fixed.

[0011] By adopting the above technical scheme, the inside plug-in box can be fixed and adsorbed, and the stability of the inside plug-in box during use is improved.

[0012] As a further description of the above technical scheme, panel fixing studs are arranged at the four corners of the warning wall panel, and the panel fixing studs are fixed on the surface of the coal mine wall.

[0013] By adopting the above technical scheme, the warning wall panel can be fixed and installed, and the stability during use is increased.

[0014] As a further description of the above technical scheme, a charging port is arranged at the top of the inside plug-in box, and a top adding piston is arranged at the charging port, and a discharging port and a piston are arranged at the bottom of the inside plug-in box.

[0015] By adopting the above technical scheme, the moisture-absorbing functional particles can be replaced through the top adding piston and the discharging port at the bottom, so as to improve the moisture-absorbing durability of the whole.

[0016] As a further description of the above technical scheme, the inside of the support frame is provided with an interlaced steel mesh, and a plurality of upper reinforcing anchor rods are arranged on the upper surfaces of the support frame and the steel mesh.

[0017] By adopting the technical scheme, the upper reinforced anchor rod is stressed to form a compression zone in a certain range, the compression zones formed by the adjacent upper reinforced anchor rods overlap to form a compression belt, the loose stratum in the compression belt is reinforced by the upper reinforced anchor rod, the integrity is enhanced, the bearing capacity is improved, the bearing capacity between the roof and the coal seam is stronger, and the mechanical strength of the device as a whole is improved.

[0018] As a further description of the above technical scheme, the side fixing anchor rod is fixed to the two side walls of the coal seam supporting area.

[0019] By adopting the technical scheme, when the stratum or rock mass is subjected to external force, it is easy to deform to different degrees. When the side fixing anchor rod is used, the side fixing anchor rod is connected to the stratum or rock mass at one end, which can prevent further deformation and control the stability of the stratum or rock mass.

[0020] As a further description of the above technical scheme, the top end of the functional box body is fixedly installed with functional box mounting blocks on both sides.

[0021] By adopting the technical scheme, the functional box body can be fixed by the functional box mounting blocks, and the stability of the overall device during use is improved.

[0022] In summary, due to the adoption of the above technical scheme, the beneficial effects of the present application are:

[0023] 1. In the present application, after the support frame and the warning wall panel are installed, the initial position of the marking horizontal plate on the warning scale line is marked. When the support frame slightly descends, the support frame will descend together with the functional box body, so that the marking horizontal plate moves on the surface of the warning scale line. By directly observing the marking of the marking horizontal plate, it can be determined whether the support frame has sunk, so that relevant personnel can take timely measures to improve the safety of the overall device during use.

[0024] 2. In the present application, the inside of the inside plug-in box is filled with moisture absorbing functional particles. Through the side air permeable film and the air permeable net, the moisture in the supporting area can be absorbed to a certain extent, thereby ensuring the dryness of the supporting area to a certain extent, and the moisture absorbing functional particles can be replaced through the top adding piston and the bottom discharge port, thereby improving the moisture absorbing durability of the whole. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The device of the present application is shown in the figure;

[0026] Figure 2 The structure of the functional box body in the present application is shown in the figure;

[0027] Figure 3 For the warning wall panel structure schematic diagram in the application;

[0028] Figure 4 For the warning wall panel structure schematic diagram in the application Figure 2 Enlarged view at A in the middle;

[0029] Figure 5 For the inside plug-in box internal structure schematic diagram in the application.

[0030] Marked in the figure: 1, lifting base; 2, lifting rod; 3, first mounting plate; 4, second mounting plate; 5, support frame; 6, steel bar net; 7, upper reinforcing anchor rod; 8, side fixed anchor rod; 9, function box body; 10, warning wall panel; 11, air permeable net; 12, inside plug-in box; 13, outer fixed panel; 14, magnetic attraction fixing ring; 15, panel fixing bolt; 16, side air permeable film; 17, top added piston; 18, moisture absorption function particle; 19, function box mounting block; 20, lower connecting plate; 21, marking horizontal plate; 22, warning scale line. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Embodiment:

[0034] With reference to Figures 1-5 ,

[0035] The utility model provides a coal mine close-range high -efficient mining protection device, including elevating base 1 and warning wall panel 10, the top of elevating base 1 is provided with elevating rod 2, the top end of elevating rod 2 is connected with first mounting plate 3, the upper surface of first mounting plate 3 is connected with second mounting plate 4 through bolt, the upper surface of second mounting plate 4 is fixedly installed with support frame 5, the lower surface of support frame 5 is provided with function box body 9 near wall, the bottom of function box body 9 is fixedly connected with lower connecting plate 20, the lower surface of lower connecting plate 20 is provided with mark horizontal plate 21, the surface of warning wall panel 10 is provided with warning scale line 22, and warning scale line 22 is slidably connected with the surface of mark horizontal plate 21, after installing support frame 5 and warning wall panel 10, mark horizontal plate 21 is marked at the initial position of warning scale line 22, when support frame 5 has slightly descended, support frame 5 will descend together with function box body 9, so that mark horizontal plate 21 moves on the surface of warning scale line 22, whether support frame 5 has sunk can be discerned by directly observing the mark of mark horizontal plate 21, so that relevant personnel can take measures in time, improve the security in the use process of overall device.

[0036] The side of function box body 9 away from the wall is provided with a breathable net 11, and the inside of function box body 9 is movably inserted with an inside plug-in box 12, the inside of inside plug-in box 12 is filled with moisture-absorbing functional particles 18, the side of inside plug-in box 12 close to the breathable net 11 is provided with a side breathable film 16, and the moisture-absorbing functional particles 18 can absorb moisture in the support area through the side breathable film 16 and the breathable net 11, thereby ensuring the dryness of the support area to a certain extent.

[0037] A magnetic attraction fixing ring 14 is arranged at the opening of the side surface of function box body 9, and an outer fixed panel 13 is connected to the outer end of inside plug-in box 12, and the outer fixed panel 13 and the magnetic attraction fixing ring 14 are mutually adsorbed and fixed, so as to fix and adsorb the inside plug-in box 12, thereby improving the stability of the inside plug-in box 12 during use.

[0038] A panel fixing bolt 15 is arranged at the four corners of the warning wall panel 10, and the panel fixing bolt 15 is fixed on the surface of the coal mine wall, so as to fix and install the warning wall panel 10, thereby increasing the stability during use.

[0039] A charging port is arranged at the top of the inside plug-in box 12, and a top adding piston 17 is arranged at the charging port, and a discharging port and a piston are arranged at the bottom of the inside plug-in box 12, so that the moisture-absorbing functional particles 18 can be replaced through the top adding piston 17 and the discharging port at the bottom, thereby improving the moisture-absorbing durability of the whole.

[0040] The inside of the support frame 5 is provided with staggered steel mesh 6, and the upper surface of the support frame 5 and the steel mesh 6 is provided with a plurality of upper reinforcing anchor rods 7. After the upper reinforcing anchor rods 7 are stressed, a compression zone is formed within a certain range around the upper reinforcing anchor rods 7, so that the compression zones formed by the adjacent upper reinforcing anchor rods 7 overlap to form a compression zone. The loose stratum in the compression zone is reinforced by the upper reinforcing anchor rods 7, the integrity is enhanced, the bearing capacity is improved, the bearing capacity between the roof and the coal seam is stronger, and the mechanical strength of the whole device is increased.

[0041] The side of the lifting base 1 close to the wall of the coal mine is provided with a side fixed anchor rod 8, one end of the side fixed anchor rod 8 is fixed to the wall on both sides of the coal seam supporting area. When the stratum or rock mass is subjected to external force, it is easy to deform to different degrees. When the side fixed anchor rod 8 is used, the stratum or rock mass is connected through one end of the side fixed anchor rod 8, which can prevent further deformation and control the stability of the stratum or rock mass.

[0042] The top of the function box body 9 is fixedly provided with function box mounting blocks 19 on both sides. The function box body 9 can be fixed through the function box mounting blocks 19, and the stability during use of the whole device is increased.

[0043] The implementation principle of the coal mine close-range efficient mining protection device embodiment of the present application is as follows: during use, after the support frame 5 and the warning wall panel 10 are installed, the initial position of the mark horizontal plate 21 on the warning scale line 22 is marked. When the support frame 5 slightly descends, the support frame 5 will descend together with the function box body 9, so that the mark horizontal plate 21 moves on the surface of the warning scale line 22. Whether the support frame 5 has sunk can be distinguished by directly observing the mark of the mark horizontal plate 21, so that relevant personnel can take measures in time, and the safety during use of the whole device is improved. The inside of the inside plug-in box 12 is filled with moisture absorption functional particles 18. The moisture in the supporting area can be absorbed through the side air permeable film 16 and the air permeable net 11, so that the dryness of the supporting area is ensured to a certain extent, and the moisture absorption durability of the whole is improved by replacing the moisture absorption functional particles 18 through the top adding piston 17 and the bottom discharge port.

[0044] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A coal mine close-range high-efficiency mining protection device, comprising a lifting base (1) and a warning wall panel (10), characterized in that: The top of the lifting base (1) is provided with a lifting rod (2), the top end of the lifting rod (2) is connected with a first mounting plate (3), the upper surface of the first mounting plate (3) is connected with a second mounting plate (4) through bolts, the upper surface of the second mounting plate (4) is fixedly installed with a support frame (5), the lower surface of the support frame (5) is provided with a function box body (9) near the wall, the bottom end of the function box body (9) is fixedly connected with a lower connecting plate (20), the lower surface of the lower connecting plate (20) is provided with a mark transverse plate (21), the surface of the warning wall panel (10) is provided with a warning scale line (22), and the warning scale line (22) is slidably connected with the surface of the mark transverse plate (21). ​ 2. The coal mine close-range high-efficiency mining protection device according to claim 1, characterized in that: The side of the function box body (9) away from the wall is provided with a breathable net (11), the inside of the function box body (9) is movably inserted with an inside plug-in box (12), the inside of the inside plug-in box (12) is filled with moisture absorbing functional particles (18), and the side of the inside plug-in box (12) close to the breathable net (11) is provided with a side breathable film (16).

3. The coal mine close-range high-efficiency mining protection device according to claim 2, characterized in that: The side surface opening of the function box body (9) is provided with a magnetic attraction fixing ring (14), the outer end of the inside plug-in box (12) is connected with an outer fixed panel (13), and the outer fixed panel (13) and the magnetic attraction fixing ring (14) are mutually adsorbed and fixed.

4. The coal mine close-range high-efficiency mining protection device according to claim 1, characterized in that: The four corners of the warning wall panel (10) are provided with panel fixing studs (15) penetrating through, and the panel fixing studs (15) are fixed on the surface of the coal mine wall.

5. The coal mine close-range high-efficiency mining protection device according to claim 2, characterized in that: The top of the inside plug-in box (12) is provided with a charging port, and the charging port is provided with a top adding piston (17), and the bottom of the inside plug-in box (12) is provided with a discharging port and a piston.

6. The coal mine close-range high-efficiency mining protection device according to claim 1, characterized in that: The inside of the support frame (5) is provided with an interlaced steel mesh (6), and the upper surfaces of the support frame (5) and the steel mesh (6) are provided with a plurality of upper reinforcing anchor rods (7).

7. The coal mine close-range high-efficiency mining protection device according to claim 1, characterized in that: The side of the lifting base (1) close to the coal mine wall is provided with a side fixed anchor rod (8), one end of the side fixed anchor rod (8) is fixed on the two side walls of the coal seam support area.

8. The coal mine close-range high-efficiency mining protection device according to claim 1, characterized in that: The top of the function box body (9) is fixedly installed with function box mounting blocks (19) on both sides.

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