Coal mine support mine pressure detection device

Abstract

The utility model discloses a mine pressure detection device for coal mine support, which relates to the field of coal mine support and comprises a fixed bottom plate, pneumatic telescopic rods are fixedly connected to four corners of the top end of the fixed bottom plate, the output ends of the pneumatic telescopic rods are fixedly connected with a top plate, the bottom ends of guide rods are fixedly connected with a first connecting plate, and the bottom ends of the guide rods are fixedly connected with a second connecting plate. A movable block is fixedly connected to one side of the first connecting plate, and a height adjusting mechanism used for adjusting the height of the movable block is arranged on the inner side of the movable block. According to the coal mine support mine pressure detection device, a threaded rod can be driven to rotate through rotation of the output end of a driving motor, the threaded rod can drive a movable block to move up and down in the rotating process, the movable block can drive the distance between a first connecting plate and a second connecting plate when moving, and when the second connecting plate is pressed to move downwards, the distance between the first connecting plate and the second connecting plate is adjusted. And after the two conducting strips are in contact with each other, a reminding alarm is given to remind that the supporting structure is bent due to gravity and needs to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine support, in particular to a coal mine support mine pressure detection device. Background Art

[0002] When coal mining is carried out, support is needed for auxiliary support. Support is a device that supports, reinforces and protects the underground surrounding environment. When the support is used for a long time, there is a possibility of deformation. Therefore, it is necessary to use detection equipment to detect the support to avoid safety accidents.

[0003] In the prior art, a Chinese patent with authorization announcement number CN220398769U discloses a coal mine support pressure detection device, which relates to the field of coal mine support technology, specifically a coal mine support pressure detection device, including a pressure detector, the top of the pressure detector is connected to a contact plate, the top of the contact plate is movably sleeved with a threaded rod, the outside of the threaded rod is fixedly sleeved with a transmission worm wheel, the side of the transmission worm wheel is meshed with a transmission worm, the transmission worm is movably mounted on the top of the contact plate, and the front end of the transmission worm is connected to a driving rocker arm. By rotating the driving rocker arm to drive the transmission worm to rotate, and then the transmission worm drives the transmission worm wheel to rotate, the threaded rod can be rotated to adjust the support height of the second top plate, and the transmission worm wheel and the transmission worm have a self-locking function, which can prevent the threaded rod from rotating when it is under pressure.

[0004] The above mechanism achieves self-locking in height by utilizing the cooperation of the turbine and the worm, but in actual use, manual rotation is required, which makes height adjustment inconvenient. At the same time, when the detector is damaged, it is not easy to disassemble and replace it. Utility Model Content

[0005] The utility model aims to provide a coal mine support mine pressure detection device to solve the problems in the above background technology that it is inconvenient to manually rotate and adjust the height, and it is not convenient to disassemble and replace the detector when it is damaged.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mine support mine pressure detection device, comprising a fixed bottom plate, four corners of the top of the fixed bottom plate are fixedly connected with pneumatic telescopic rods, and the output end of the pneumatic telescopic rod is fixedly connected with a top plate, the upper ends of both sides of the top plate are snap-connected with upper limit plates, and the bottom end of the upper limit plate is fixedly connected with a second connecting plate, both sides of the second connecting plate are fixedly connected with limit blocks, and the inside of the limit blocks is slidably connected with guide rods, the bottom end of the guide rod is fixedly connected with a first connecting plate, and the top of the first connecting plate and the bottom of the second connecting plate are fixedly connected with corresponding conductive sheets;

[0007] A movable block is fixedly connected to one side of the first connecting plate, and a height adjustment mechanism for adjusting the height of the movable block is arranged on the inner side of the movable block, the height adjustment mechanism comprises a threaded rod, and the threaded rod is threadedly connected to the inner side of the movable block, and a driving motor is fixedly connected to the bottom end of the threaded rod;

[0008] The inner side of the upper limit plate is in contact with the outer side of the top plate, and a disassembly mechanism for disassembly is provided on the inner side of the upper limit plate.

[0009] Furthermore, a fixed plate is provided on one side of the threaded rod, and a slider is fixedly connected to one side of the movable block. A slide rail matching the slider is provided on one side of the fixed plate, and a sliding mechanism is formed between the fixed plate and the movable block through a sliding connection between the slider and the slide rail.

[0010] Furthermore, a return spring is wound around the outer side of the guide rod, and the bottom end of the return spring is connected to the first connecting plate.

[0011] Furthermore, the cross-sections of the lower limit plate and the upper limit plate are both in an inverted "L" shape, and the inner side of the lower limit plate is in contact with the outer side of the fixed bottom plate.

[0012] Furthermore, the disassembly and assembly mechanism includes an airbag, and the airbag is fixedly connected to the top end of the upper limit plate. The bottom ends of the upper limit plates on both sides of the airbag are fixedly connected with connecting springs, and an elastic structure is formed between the connecting springs and the top plate.

[0013] Furthermore, the bottom end of the lower limit plate is fixedly connected to a limit mechanism, the limit mechanism includes a fixed rod, and the fixed rod is fixedly connected to the bottom end of the lower limit plate, the internal thread of the fixed rod is connected to a threaded block, and the bottom end of the threaded block is fixedly connected to the limit rod.

[0014] Furthermore, the limiting rod is arranged below the fixed bottom plate, and the limiting rod is symmetrical with respect to the central axis of the fixed bottom plate in the vertical direction.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The output end of the driving motor is rotated to drive the threaded rod to rotate. The threaded rod drives the movable block to move up and down during the rotation. The movable block drives the distance between the first connecting plate and the second connecting plate when moving. When the second connecting plate moves downward under pressure, the two conductive sheets contact each other, and then a reminder alarm is issued, indicating that the support structure needs to be replaced due to bending caused by gravity;

[0017] Furthermore, the cooperation between the guide rod and the return spring makes the first connecting plate more stable when moving, avoiding misalignment when the conductive sheets are fitted together, ensuring that the conductive sheets can be accurately fitted together while also assisting the first connecting plate and the movable block in adjusting the height.

[0018] Furthermore, the movable block is driven and slides on the inner side of the fixed plate, and the movable block moves up and down more smoothly by the cooperation between the slider and the slide rail, and the movable block can also be guided by the cooperation between the slider and the slide rail, so as to avoid the problem of angle deviation of the movable block caused by the rotation of the threaded rod;

[0019] 2. When the upper limit plate is engaged with the top plate, the airbag inside the upper limit plate is squeezed and deformed to a certain extent, so that the connecting spring is stressed and shortened, so that the gap between the upper limit plate and the top plate is filled with the airbag, making the installation of the detection device more stable. Even if the height adjustment is not appropriate, the stability of the detection device itself can be guaranteed;

[0020] Furthermore, the limit rod and the fixed rod are removed into the ground, and the lower limit plate and the fixed base plate are fixed from the side of the lower limit plate using bolts to achieve the limitation of the detection device itself, so that the fixed base plate and the lower limit plate are connected and fixed, and the overall stability of the device is also increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the detection device of the utility model;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the limiting mechanism of the utility model;

[0024] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the detection device of the utility model;

[0025] Figure 5 It is a partial enlarged structural schematic diagram of the limiting mechanism of the utility model;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the detection mechanism of the utility model;

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the height adjustment mechanism of the utility model.

[0028] In the figure: 1. fixed bottom plate; 2. pneumatic telescopic rod; 3. top plate; 4. lower limit plate; 5. driving motor; 6. threaded rod; 7. movable block; 8. first connecting plate; 9. conductive sheet; 10. second connecting plate; 11. upper limit plate; 12. airbag; 13. connecting spring; 14. limit block; 15. guide rod; 16. reset spring; 17. fixed rod; 18. threaded block; 19. limit rod; 20. slider; 21. slide rail; 22. fixed plate. DETAILED DESCRIPTION

[0029] 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.

[0030] Embodiment 1:

[0031] like Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 The technical solution shown is to solve the problem that it is inconvenient to manually adjust the height: the coal mine support mining pressure detection device discloses a height adjustment mechanism, including a fixed bottom plate 1, four corners of the top of the fixed bottom plate 1 are fixedly connected with a pneumatic telescopic rod 2, and the output end of the pneumatic telescopic rod 2 is fixedly connected with a top plate 3, the upper ends of the two sides of the outside of the top plate 3 are snap-connected with an upper limit plate 11, and the bottom end of the upper limit plate 11 is fixedly connected with a second connecting plate 10, both sides of the second connecting plate 10 are fixedly connected with a limiting block 14, and the inside of the limiting block 14 is slidably connected with a guide rod 15, the bottom end of the guide rod 15 is fixedly connected with a first connecting plate 8, and the top of the first connecting plate 8 and the bottom of the second connecting plate 10 are fixedly connected with mutually corresponding conductive sheets 9, and one side of the first connecting plate 8 is fixedly connected A movable block 7 is connected, and a height adjustment mechanism for adjusting its own height is arranged on the inner side of the movable block 7, the height adjustment mechanism includes a threaded rod 6, and the threaded rod 6 is threadedly connected to the inner side of the movable block 7, the bottom end of the threaded rod 6 is fixedly connected to the driving motor 5, a fixed plate 22 is arranged on one side of the threaded rod 6, and a slider 20 is fixedly connected to one side of the movable block 7, a slide rail 21 matching the slider 20 is provided on one side of the fixed plate 22, and the fixed plate 22 and the movable block 7 are slidably connected through the slider 20 and the slide rail 21 to form a sliding mechanism, a return spring 16 is wound around the outer side of the guide rod 15, and the bottom end of the return spring 16 is connected to the first connecting plate 8, the cross-sections of the lower limit plate 4 and the upper limit plate 11 are both in an inverted "L" shape, and the inner side of the lower limit plate 4 fits with the outer side of the fixed base plate 1.

[0032] In this example, the lower limit plate 4 is clamped at the lower end of the outer side of the fixed bottom plate 1, and the upper limit plate 11 is clamped at the upper end of the outer side of the pneumatic telescopic rod 2. The pneumatic telescopic rod 2 can be used to adjust the distance between the fixed bottom plate 1 and the top plate 3 to achieve support for different underground environments.

[0033] By rotating the output end of the driving motor 5, the threaded rod 6 can be driven to rotate. During the rotation, the threaded rod 6 will drive the movable block 7 to move up and down. When the movable block 7 moves, it will drive the distance between the first connecting plate 8 and the second connecting plate 10. When the second connecting plate 10 moves downward under pressure, the two conductive plates 9 contact each other, and then a reminder alarm is issued to indicate that the support structure is bent due to gravity.

[0034] Embodiment 2:

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 The technical solution shown is to solve the problem that it is inconvenient to disassemble and replace the detection mechanism when the support mechanism is damaged: the coal mine support mine pressure detection device discloses a disassembly and assembly mechanism, the inner side of the upper limit plate 11 is in contact with the outer side of the top plate 3, and the inner side of the upper limit plate 11 is provided with a disassembly and assembly mechanism for disassembly, the disassembly and assembly mechanism includes an airbag 12, and the airbag 12 is fixedly connected to the top of the upper limit plate 11, and the bottom ends of the upper limit plates 11 on both sides of the airbag 12 are fixedly connected with connecting springs 13, and an elastic structure is formed between the connecting spring 13 and the top plate 3.

[0036] In this example, since the support structure will experience a certain degree of wear after long-term use, disassembling and replacing the detection mechanism can reduce waste of resources. When the upper limit plate 11 is engaged above the top plate 3, the airbag 12 inside the upper limit plate 11 is squeezed and deformed to a certain extent, so that the connecting spring 13 is stressed and shortened in length, so that the gap between the upper limit plate 11 and the top plate 3 is filled with the airbag 12, so that the installation of the detection device can be more stable, and even if the height adjustment is not appropriate, the stability of the detection device itself can be guaranteed.

[0037] Embodiment three:

[0038] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7The technical solution shown is to solve the problem of position displacement of the detection mechanism during use: the coal mine support mine pressure detection device discloses a limit mechanism, the bottom end of the lower limit plate 4 is fixedly connected to the limit mechanism, the limit mechanism includes a fixed rod 17, and the fixed rod 17 is fixedly connected to the bottom end of the lower limit plate 4, the internal thread of the fixed rod 17 is connected to a threaded block 18, and the bottom end of the threaded block 18 is fixedly connected to a limit rod 19, the limit rod 19 is arranged below the fixed bottom plate 1, and the limit rod 19 is symmetrical about the central axis of the fixed bottom plate 1 in the vertical direction.

[0039] In this example, during installation, the lower limit plate 4 is first fixed at the position where the support device needs to be installed, and the limit rod 19 is rotated so that the threaded block 18 and the fixed rod 17 are threadedly connected and the length of the limit rod 19 is adjusted. The limit rod 19 and the fixed rod 17 are removed into the ground, and then the fixed base plate 1 is placed on one side between the lower limit plates 4 for position limiting. The lower limit plate 4 and the fixed base plate 1 are fixed from the side of the lower limit plate 4 with bolts to achieve the limiting of the detection device itself.

[0040] 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 coal mine support and mine pressure detection device, comprising a fixed bottom plate (1), wherein the four corners of the top of the fixed bottom plate (1) are fixedly connected to pneumatic telescopic rods (2), and the output end of the pneumatic telescopic rod (2) is fixedly connected to a top plate (3), the upper ends of both sides of the top plate (3) are snap-connected to upper limit plates (11), and the bottom end of the upper limit plate (11) is fixedly connected to a second connecting plate (10), both sides of the second connecting plate (10) are fixedly connected to limit blocks (14), and the inside of the limit blocks (14) is slidably connected to a guide rod (15), the bottom end of the guide rod (15) is fixedly connected to a first connecting plate (8), and the top end of the first connecting plate (8) and the bottom end of the second connecting plate (10) are fixedly connected to corresponding conductive sheets (9); Features: A movable block (7) is fixedly connected to one side of the first connecting plate (8), and a height adjustment mechanism for adjusting the height of the movable block (7) is arranged on the inner side of the movable block (7), the height adjustment mechanism comprises a threaded rod (6), and the threaded rod (6) is threadedly connected to the inner side of the movable block (7), and the bottom end of the threaded rod (6) is fixedly connected to a driving motor (5); The inner side of the upper limit plate (11) is in contact with the outer side of the top plate (3), and a disassembly mechanism for disassembly is provided on the inner side of the upper limit plate (11).

2. A coal mine support and mine pressure detection device according to claim 1, characterized in that: A fixed plate (22) is provided on one side of the threaded rod (6), and a slider (20) is fixedly connected to one side of the movable block (7); a slide rail (21) matching the slider (20) is provided on one side of the fixed plate (22), and the fixed plate (22) and the movable block (7) are slidably connected via the slider (20) and the slide rail (21) to form a sliding mechanism.

3. A coal mine support and mine pressure detection device according to claim 2, characterized in that: A return spring (16) is wound around the outer side of the guide rod (15), and the bottom end of the return spring (16) is connected to the first connecting plate (8).

4. A coal mine support and mine pressure detection device according to claim 3, characterized in that: The cross sections of the lower limit plate (4) and the upper limit plate (11) are both in an inverted "L" shape, and the inner side of the lower limit plate (4) fits the outer side of the fixed bottom plate (1).

5. A coal mine support and mine pressure detection device according to claim 1, characterized in that: The disassembly and assembly mechanism comprises an airbag (12), and the airbag (12) is fixedly connected to the top end of the upper limit plate (11), the bottom ends of the upper limit plates (11) on both sides of the airbag (12) are fixedly connected to connecting springs (13), and an elastic structure is formed between the connecting springs (13) and the top plate (3).

6. A coal mine support and mine pressure detection device according to claim 1, characterized in that: The bottom end of the lower limit plate (4) is fixedly connected to a limit mechanism, the limit mechanism comprising a fixed rod (17), and the fixed rod (17) is fixedly connected to the bottom end of the lower limit plate (4), the internal thread of the fixed rod (17) is connected to a thread block (18), and the bottom end of the thread block (18) is fixedly connected to the limit rod (19).

7. A coal mine support and mine pressure detection device according to claim 6, characterized in that: The limiting rod (19) is arranged below the fixed base plate (1), and the limiting rod (19) is symmetrical with respect to the central axis of the fixed base plate (1) in the vertical direction.

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