A safety monitoring device for underground support structure

Abstract

The present invention discloses a safety monitoring device for an underground support structure, and relates to the field of underground support technology. The safety monitoring device for the underground support structure includes a support body, and is characterized in that: a monitoring body is arranged on the support body, and the monitoring body includes a mounting plate, and the mounting plate is fixed to the support body by mounting bolts, and a tilting plate is movably arranged on the top of the right side of the mounting plate by a spring hinge. The safety monitoring device for the underground support structure uses a simple electrical signal to control the indicator light to light up for warning operation, which greatly speeds up the warning speed and reduces the demand for the signal environment compared to digital signals and wireless signals, and uses a magnetic field to automatically adjust the relative position of the internal trigger mechanism, and can still work when the installation is tilted or the support body is tilted, thereby enhancing the applicability of the device, reducing the difficulty of installation, and ensuring a good monitoring effect.

Description

Technical Field

[0001] The invention relates to the technical field of underground support, and in particular to a safety monitoring device for an underground support structure. Background Art

[0002] At present, iron ore is mainly mined underground, and a large number of tunnels need to be excavated underground. The use of tunnel support to keep the tunnel unobstructed and the surrounding rock stable is of great significance to the construction and production of iron ore. The basic purpose of tunnel support is to ease and reduce the movement of surrounding rock, so that the tunnel section will not be excessively reduced, and at the same time prevent the scattered and damaged surrounding rock from falling. The effect of tunnel support depends not only on the supporting force of the support itself, but also on the surrounding rock properties, the mechanical properties of the support (supporting force and shrinkability), the density of the support installation, the early and late installation time of the support, the quality of the support installation and the contact mode with the surrounding rock (point contact or surface contact). In order to make the tunnel support play an active role in regulating and controlling the deformation of the surrounding rock, the support should be installed before the surrounding rock is loosened and damaged, so that the support can bear the weight of the surrounding rock together with the surrounding rock while the surrounding rock still has self-bearing capacity, instead of waiting for the surrounding rock to become loose, damaged, and almost completely lose its self-bearing capacity before using the support to bear the weight of the fallen rock.

[0003] In the prior art, wireless positioning and displacement monitoring mechanisms are used to monitor the safety of underground supports. If wireless positioning is used, there may be signal delays, which may result in failure to issue an alarm in time when an accident occurs. If a displacement monitoring mechanism is used, corresponding requirements are required for its relative position with the underground support and the verticality of the displacement monitoring mechanism. Since the underground support is sometimes relatively tilted, high installation accuracy is required, and equipment failure may easily occur due to accidental collisions during use, which increases the difficulty of installation and reduces the monitoring effect. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a safety monitoring device for an underground support structure, which solves the problem in the prior art of using wireless positioning and displacement monitoring mechanisms to monitor the safety of underground supports. If wireless positioning is used, there may be signal delays, making it impossible to issue an alarm in time when an accident occurs. If a displacement monitoring mechanism is used, corresponding requirements are required for its relative position with the underground support and the verticality of the displacement monitoring mechanism. Since the underground support is sometimes relatively tilted, high installation accuracy is required. In addition, accidental collisions are prone to occur during use, resulting in equipment failure, which increases the difficulty of installation and reduces the monitoring effect.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A safety monitoring device for an underground support structure includes a support body, characterized in that: a monitoring body is arranged on the support body;

[0008] The monitoring body comprises a mounting plate, the mounting plate is fixed to the supporting body by mounting bolts, an inclined plate is movably provided at the top of the right side of the mounting plate through a spring hinge, and a detection body is provided on the side of the inclined plate away from the supporting body;

[0009] The detection body includes a detection shell, a movable groove is opened on one side of the detection shell, a movable plate is movably arranged in the movable groove, one end of the movable plate located on the outside of the detection shell is fixed to the inclined plate, a magnet block is arranged on the side of the movable plate located in the inner cavity of the detection shell, a guide rod is movably arranged on the movable plate, both ends of the guide rod are fixed to the inner cavity of the detection shell, a buffer spring is sleeved on the surface of the guide rod, and the two ends of the buffer spring are respectively fixed to the inner wall of the detection shell and the surface of the movable plate, a control mechanism is arranged on the left side of the bottom of the detection shell, and the inner cavity of the detection shell is provided with a control mechanism. A limit tube is arranged at the bottom of the cavity, and a rubber block is movably connected to the top of the limit tube through a spring hinge, and lower conductive sheets are fixedly connected to both sides of the rubber block, and an upper conductive ball is arranged between the two lower conductive sheets, and the upper conductive ball is fixed relative to the top of the inner cavity of the detection shell through a wire, and a permanent magnet is arranged in the inner cavity of the upper conductive ball, and a coil block is arranged on the side of the lower conductive sheet away from the permanent magnet, and the control mechanism is electrically connected to the coil block for controlling the voltage of the coil block, and an indicator light is arranged on the right side of the detection shell, and the circuits of the lower conductive sheet and the upper conductive ball are connected in series with the circuit of the indicator light.

[0010] Preferably, when the inclined plate is not subjected to horizontal force, the plane where the mounting plate is located is perpendicular to the plane where the inclined plate is located.

[0011] Preferably, a ball is provided on a side of the detection body close to the inclined plate, and the ball is in contact with the surface of the inclined plate.

[0012] Preferably, the direction of the magnetic field generated by the coil block after power is supplied is opposite to the direction of the magnetic field of the permanent magnet.

[0013] (III) Beneficial effects

[0014] The present invention provides a safety monitoring device for a downhole support structure. The device has the following beneficial effects: the device uses a simple electrical signal to control the indicator light to light up for warning operation, which greatly speeds up the warning speed and reduces the demand for the signal environment compared with digital signals and wireless signals. The device uses a magnetic field to automatically adjust the relative position of the internal trigger mechanism, and can still work when the installation is tilted or the support body is tilted, thereby enhancing the applicability of the device, reducing the difficulty of installation and ensuring the monitoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the monitoring body of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the detection body of the present invention.

[0018] In the figure: 1. support body; 2. monitoring body; 21. ball bearing; 22. tilting plate; 23. mounting bolt; 24. mounting plate; 25. detection body; 2501. buffer spring; 2502. movable groove; 2503. movable plate; 2504. guide rod; 2505. lower conductive sheet; 2506. control mechanism; 2507. detection housing; 2508. upper conductive ball; 2509. permanent magnet; 2510. indicator light; 2511. coil block; 2512. rubber block; 2513. limit tube; 2514. magnet block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-3 , the present invention provides a technical solution: a safety monitoring device for an underground support structure, comprising a support body 1, on which a monitoring body 2 is arranged;

[0021] The monitoring body 2 includes a mounting plate 24, which is fixed to the supporting body 1 by mounting bolts 23. A tilting plate 22 is movably arranged on the top of the right side of the mounting plate 24 through a spring hinge. When the tilting plate 22 is not subjected to a horizontal force, the plane where the mounting plate 24 is located is perpendicular to the plane where the tilting plate 22 is located. A detection body 25 is arranged on the side of the tilting plate 22 away from the supporting body 1. A ball 21 is arranged on the side of the detection body 25 close to the tilting plate 22, and the ball 21 is in contact with the surface of the tilting plate 22.

[0022] The detection body 25 includes a detection shell 2507, a movable groove 2502 is opened on one side of the detection shell 2507, a movable plate 2503 is movably arranged in the movable groove 2502, one end of the movable plate 2503 located on the outside of the detection shell 2507 is fixed on the inclined plate 22, a magnet block 2514 is arranged on the side of the movable plate 2503 located in the inner cavity of the detection shell 2507, a guide rod 2504 is movably arranged on the movable plate 2503, both ends of the guide rod 2504 are fixed to the inner cavity of the detection shell 2507, a buffer spring 2501 is sleeved on the surface of the guide rod 2504, and the two ends of the buffer spring 2501 are respectively fixed to the inner wall of the detection shell 2507 and the surface of the movable plate 2503, a control mechanism 2506 is arranged on the left side of the bottom of the detection shell 2507, and a limit tube 2513 is arranged at the bottom of the inner cavity of the detection shell 2507. The top of the position tube 2513 is movably connected to a rubber block 2512 through a spring hinge, and lower conductive sheets 2505 are fixedly connected to both sides of the rubber block 2512. An upper conductive ball 2508 is arranged between the two lower conductive sheets 2505. The upper conductive ball 2508 is fixed relative to the top of the inner cavity of the detection shell 2507 through a wire, and a permanent magnet 2509 is arranged in the inner cavity of the upper conductive ball 2508. A coil block 2511 is arranged on the side of the lower conductive sheet 2505 away from the permanent magnet 2509. The direction of the magnetic field generated by the coil block 2511 after power is turned on is opposite to the direction of the magnetic field of the permanent magnet 2509. The control mechanism 2506 is electrically connected to the coil block 2511 for controlling the voltage of the coil block 2511. An indicator light 2510 is arranged on the right side of the detection shell 2507, and the circuits of the lower conductive sheet 2505 and the upper conductive ball 2508 are connected in series to the circuit of the indicator light 2510.

[0023] During installation, the monitoring body 2 is fixed to the support body 1 by installing bolts 23. The inclined plate 22 can have an angle of 45-90° with the horizontal plane. The power supply of the coil block 2511 is turned on by the control mechanism 2506, so that the coil block 2511 generates a magnetic field that repels the permanent magnet 2509. If the indicator light 2510 lights up after installation (this is due to gravity, the upper conductive ball 2508 is in contact with the lower conductive sheet 2505, so that the indicator light 2510 lights up), the working voltage of the coil block 2511 is increased by the control mechanism 2506, so that the force on the permanent magnet 2509 in the magnetic field increases, so that the position of the upper conductive ball 2508 gradually approaches the middle position of the two lower conductive sheets 2505, so that the upper conductive ball 2508 is separated from the lower conductive sheet 2505 until the indicator light 2510 is off.

[0024] During operation, if the support body 1 is vibrated, the movable plate 2503 will drive the magnet block 2514 to move, thereby changing the magnetic field state near the permanent magnet 2509, and causing the upper conductive ball 2508 to continuously collide with the lower conductive sheet 2505, causing the indicator light 2510 to light up, thereby realizing a light warning operation. The user can connect the speaker in series to the circuit of the indicator light 2510 to realize a sound warning operation.

[0025] In summary, the safety monitoring device of the underground support structure uses a simple electrical signal to control the indicator light to light up for warning operations, which greatly speeds up the warning speed and reduces the demand for the signal environment compared to digital signals and wireless signals. It uses a magnetic field to automatically adjust the relative position of the internal trigger mechanism, and can still work when the installation is tilted or the support body is tilted, which enhances the applicability of the device, reduces the difficulty of installation and ensures a good monitoring effect.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety monitoring device for an underground support structure, comprising a support body (1), characterized in that: A monitoring body (2) is arranged on the support body (1); The monitoring body (2) comprises a mounting plate (24), the mounting plate (24) being fixed to the supporting body (1) by means of mounting bolts (23), an inclined plate (22) being movably arranged at the top of the right side of the mounting plate (24) by means of a spring hinge, and a detection body (25) being arranged at a side of the inclined plate (22) away from the supporting body (1); The detection body (25) comprises a detection shell (2507), a movable groove (2502) is provided on one side of the detection shell (2507), a movable plate (2503) is movably provided in the movable groove (2502), one end of the movable plate (2503) located on the outside of the detection shell (2507) is fixed on the inclined plate (22), a magnet block (2514) is provided on one side of the movable plate (2503) located in the inner cavity of the detection shell (2507), and the movable plate (2503) is provided with a plurality of movable plates (2514). A guide rod (2504) is movably provided on the detection housing (2503), and both ends of the guide rod (2504) are fixed to the inner cavity of the detection housing (2507). A buffer spring (2501) is sleeved on the surface of the guide rod (2504), and both ends of the buffer spring (2501) are respectively fixed to the inner wall of the detection housing (2507) and the surface of the movable plate (2503). A control mechanism (2506) is provided on the left side of the bottom of the detection housing (2507). 07) is provided with a limit tube (2513) at the bottom of the inner cavity, the top of the limit tube (2513) is movably connected to a rubber block (2512) through a spring hinge, both sides of the rubber block (2512) are fixedly connected to lower conductive sheets (2505), an upper conductive ball (2508) is provided between the two lower conductive sheets (2505), the upper conductive ball (2508) is fixed relative to the top of the inner cavity of the detection housing (2507) through a wire, and the inner cavity of the upper conductive ball (2508) is provided A permanent magnet (2509) is disposed therein, a coil block (2511) is disposed on the side of the lower conductive sheet (2505) away from the permanent magnet (2509), the control mechanism (2506) is electrically connected to the coil block (2511) and is used to control the voltage of the coil block (2511), an indicator light (2510) is disposed on the right side of the detection housing (2507), and the circuits of the lower conductive sheet (2505) and the upper conductive ball (2508) are connected in series to the circuit of the indicator light (2510); When the inclined plate (22) is not subjected to a horizontal force, the plane where the mounting plate (24) is located is perpendicular to the plane where the inclined plate (22) is located; A ball (21) is provided on one side of the detection body (25) close to the inclined plate (22), and the ball (21) is in contact with the surface of the inclined plate (22); The direction of the magnetic field generated by the coil block (2511) after power is supplied is opposite to the direction of the magnetic field of the permanent magnet (2509).

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