Water pressure monitoring device for mine water disaster

Abstract

The invention discloses a water pressure monitoring device for mine water disasters, and relates to the field of mine water pressure monitoring, the water pressure monitoring device comprises a water pressure monitor, a connecting assembly, a conductive assembly and a limiting assembly, the bottom end of the water pressure monitor is fixedly connected with a supporting frame, the top end of the water pressure monitor is fixedly connected with a fixing column, and the outer side face of the fixing column is sleeved with a sleeve; the top end of the sleeve is fixedly connected with a stand column, the outer side face of the stand column is sleeved with a sliding block, and a displacement sensor is installed in the stand column. The connecting assembly is installed on the sliding block, a floating plate is connected to the connecting assembly, and the connecting assembly is used for connecting the sliding block and the floating plate. Through the effects of the connecting assembly, the conductive assembly and the limiting assembly, water level and water pressure false alarms caused by water surface fluctuation can be effectively avoided; and when the water level rises, the water pressure and the water level can be effectively and uninterruptedly monitored, so that the problem that the water pressure and the water level are easily subjected to false alarm due to water surface fluctuation in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of mine water pressure monitoring, in particular to a water pressure monitoring device for mine water hazards. Background Art

[0002] Mine water hazard refers to any water source that seeps, spills, flows, rushes and bursts into the shaft or working face during the mine development and mining process. These water sources may pose a threat to the normal production activities of the mine and may even cause accidents in which the mine is partially or completely flooded. Mine water hazard not only affects production, but in severe cases may even cause casualties.

[0003] At present, in the process of mining, for the safety of workers, it is necessary to install a water pressure monitor in the mine to monitor the water pressure to avoid dangerous situations such as mine collapse caused by excessive water pressure. However, in the process of mining, the use rate of large equipment is high, and large machinery will produce different degrees of vibration during use. The vibration near the mine will cause the water inside the mine to fluctuate. After the water fluctuates, the water pressure will become unstable, which will cause the water pressure monitor to falsely alarm. To this end, we propose a water pressure monitoring device for mine water hazards. Summary of the invention

[0004] The object of the present invention is to provide a water pressure monitoring device for mine water hazards to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a water pressure monitoring device for mine water hazards, comprising a water pressure monitor, wherein the bottom end of the water pressure monitor is fixedly connected to a support frame, the top end is fixedly connected to a fixed column, the outer side surface of the fixed column is sleeved with a sleeve, the top end of the sleeve is fixedly connected to a column, the outer side surface of the column is slidably sleeved with a sliding block, and a displacement sensor is installed in the column; and further comprising:

[0006] A connecting component, the connecting component is installed on the sliding block, a floating plate is arranged on the periphery of the sliding block, the connecting component is used to connect the sliding block and the floating plate, and the floating plate is placed in a floating state through the connecting component;

[0007] A conductive component, the conductive component is connected to the water pressure monitor, and the conductive component is used to control the on and off of the water pressure monitor;

[0008] A limit assembly is arranged in cooperation with the floating plate and is used to abut against the upper end surface of the floating plate when the water level rises. The limit assembly includes a connecting ring installed on the top of the floating plate, and the bottom end of the connecting ring is fixedly connected to an extrusion column.

[0009] Preferably, the conductive component includes a plurality of groups of conductive columns fixedly connected to the water pressure monitor, the upper ends of the conductive columns are connected to conductive sleeves, a conductive sliding rod is slidably connected inside the conductive sleeves, the top of the conductive sliding rod is connected to an electrical connector, the electrical connector is connected to a conductive rod passing through the floating plate, and the ends of the conductive rods are connected to terminal posts.

[0010] Preferably, the electrical connecting part includes a conductive block fixedly connected to the conductive sliding rod, a conductive ball rotatably connected inside the conductive block, a conductive rod fixedly connected to the conductive ball, a connecting ball fixedly connected to the end of the conductive rod, a connecting block fixedly connected to the floating plate is sleeved on the outside of the connecting ball, a first conductive connector connected to the conductive rod is fixedly connected inside the connecting block, a second conductive connector matching the first conductive connector is fixedly connected inside the connecting ball, and the second conductive connector is connected to the conductive rod.

[0011] Preferably, the connecting assembly includes multiple groups of first fixed blocks fixedly connected to the floating plate, the multiple groups of first fixed blocks are arranged in a circle on the inner wall of the floating plate, each of the first fixed blocks is rotatably connected to a first rotating ball, the outside of the first rotating ball is fixedly connected to a connecting rod, and a second fixed block is fixed on the outer circumferential surface of the sliding block at a position corresponding to each first fixed block, and the end of the connecting rod extends into the inside of the second fixed block and is fixedly connected to the second rotating ball.

[0012] Preferably, the limiting assembly comprises a first prismatic column slidably connected to the column, both ends of the first prismatic column are fixedly connected to first moving blocks, two first moving blocks are fixedly connected to first connecting columns on one side facing away from each other, the first connecting columns first extend in a horizontal direction, then in an inclined direction, and finally in a vertical direction to the floating plate, and the first connecting columns are connected to the floating plate via a third spring;

[0013] A linkage is connected to the first prismatic column, the other end of the linkage is connected to a connecting plate, the middle of the connecting plate is slidably connected to a second prismatic column, both ends of the second prismatic column are fixedly connected to second moving blocks, the second moving block is slidably connected to the column, and the second moving block is connected to the connecting ring via a second connecting column.

[0014] Preferably, the linkage member includes a first rack fixedly connected to the first prismatic column, a spur gear is meshed on the outer side of the first rack, the axis of the spur gear is fixedly connected to a rotating shaft rotatably connected to the column, a second rack is meshed on the outer side of the spur gear, a sliding member for driving the second rack to slide in a horizontal direction is connected to the second rack, a sliding groove adapted to the second prismatic column is provided on the first rack, and an end of the second rack is connected to a reset member connected to the first prismatic column.

[0015] Preferably, the sliding member includes a magnetic strip fixedly connected to the second rack, the magnetic strip is slidably connected to the column and has the same length as the second rack, an electromagnet is installed on one side of the magnetic strip, and the electromagnet is fixedly connected to the column via a fixing frame.

[0016] Preferably, the reset member includes a movable column slidably connected to the first prismatic column, a fourth spring fixedly connected to the movable column and fixedly connected to the first prismatic column, a sliding rod slidably connected to the movable column in a vertical direction, a fixed plate fixedly connected to the end of the sliding rod, the fixed plate is connected to the upper end of the second rack, a tension spring is arranged between the fixed plate and the first prismatic column, and the tension spring is sleeved on the sliding rod.

[0017] Preferably, the extrusion columns are provided in multiple groups and are arranged in a circle at the bottom end of the connecting ring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention provides a water pressure monitoring device for mine water hazards. During the water pressure monitoring process, a floating plate is arranged in accordance with the water level. When the water surface fluctuates, the floating plate is flexibly connected by setting a connecting component. Therefore, the floating plate will swing in the water when the water surface fluctuates. When the floating plate swings in the water, the conductive component will be disconnected, causing the water pressure monitor to stop supplying power. At this time, the water pressure monitor cannot monitor the water pressure, thereby avoiding the problem of false alarm of the water pressure monitor due to water pressure error caused by water surface fluctuation.

[0020] (2) When the water level inside the mine increases, the water surface rises. At this time, the floating plate will cause the sliding block to rise through the action of the connecting component. During this process, the limit component can be operated through the action of the floating plate, and the floating plate can be limited by the action of the limit component, so that the floating plate cannot swing in the water. At this time, the water pressure monitor can always remain powered on, and then monitor the water pressure to ensure whether the water pressure inside the mine will cause harm during the rising water level, so as to timely alarm and notify the staff to pay attention to water safety. Therefore, through the action of the connecting component, the conductive component and the limit component, the water pressure false alarm caused by water surface fluctuations can be effectively avoided, and the water pressure can be effectively and continuously monitored when the water level rises, thereby solving the problem of false alarm caused by water pressure fluctuations in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the matching structure of the connecting component and the conductive component of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the conductive component of the present invention;

[0025] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the middle A area;

[0026] Figure 6 This is a schematic diagram of the structure of the connection assembly of the present invention;

[0027] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of the middle B area;

[0028] Figure 8 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0029] Fig. 9 It is a schematic diagram of the linkage structure of the present invention;

[0030] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure of the middle C area;

[0031] Fig.11 For the present invention Fig. 9 Schematic diagram of the structure of the middle D area;

[0032] Fig.12 It is a schematic diagram of the structure of the sliding member of the present invention;

[0033] Fig.13 For the present invention Fig.12 Schematic diagram of the structure of the middle E area.

[0034] In the figure: 1-water pressure monitor; 2-support frame; 3-fixed column; 4-sleeve; 5-column; 6-sliding block; 7-moving column; 8-connecting assembly; 9-floating plate; 10-conductive assembly; 11-limiting assembly; 12-connecting ring; 13-extrusion column; 14-conductive column; 15-conductive sleeve; 16-conductive sliding rod; 17-electrical connecting piece; 18-conductive column; 19-connecting post; 20-conductive block; 21-conductive ball; 22-conductive rod; 23-connecting ball; 24-connecting block; 25-first conductive joint; 26-second conductive joint; 27-fourth spring; 28-sliding rod ;29-fixed plate;30-tension spring;31-first fixed block;32-first rotating ball;33-connecting rod;34-second rotating ball;35-second fixed block;37-first prismatic column;38-first moving block;39-first connecting column;40-third spring;41-linkage member;42-connecting plate;43-second prismatic column;44-second moving block;45-second connecting column;46-first rack;47-flat gear;48-rotating shaft;49-second rack;50-sliding member;51-sliding groove;52-resetting member;53-magnetic strip;54-electromagnet;55-fixed frame. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings. The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be used for other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0036] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0037] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0038] Example:

[0039] See also Figure 1-Figure 13A water pressure monitoring device for mine water hazards includes a water pressure monitor 1, a connecting component 8, a conductive component 10 and a limit component 11. The bottom end of the water pressure monitor 1 is fixedly connected to a support frame 2, and the top end is fixedly connected to a fixed column 3. The outer side surface of the fixed column 3 is sleeved with a sleeve 4, and the top end of the sleeve 4 is fixedly connected to a column 5. The outer side surface of the column 5 is slidably sleeved with a sliding block 6, and a displacement sensor is installed in the column 5; the connecting component 8 is installed on the sliding block 6, and a floating plate 9 is arranged on the periphery of the sliding block 6. The connecting component 8 is used to connect the sliding block 6 and the floating plate 9, and the floating plate 9 is placed in a floating state through the connecting component 8; the conductive component 10 is connected to the water pressure monitor 1, and the conductive component 10 is used to control the power on and off of the water pressure monitor 1; the limit component 11 is arranged in cooperation with the floating plate 9, and is used to abut against the upper end surface of the floating plate 9 when the water level rises to prevent it from swinging.

[0040] Specifically, the limiting assembly 11 in this embodiment includes a connecting ring 12 installed on the top of the floating plate 9, and the bottom end of the connecting ring 12 is fixedly connected to a squeezing column 13. When the water level rises, the floating plate 9 moves upward under the action of buoyancy, and the connecting ring 12 in the limiting assembly 11 moves toward the upper end surface of the floating plate 9, so that the floating plate 9 is squeezed and limited by the action of the squeezing column 13, thereby preventing the floating plate 9 from shaking during the rising water level.

[0041] When monitoring the water pressure, the device is fixed in the mine water body through the support frame 2. Since the floating plate 9 is slidably connected to the column 5 through the sliding block 6 and the connecting component 8, the floating plate 9 will float on the mine water surface, and then the water pressure is monitored by the water pressure monitor 1. When the water surface fluctuates, the floating plate 9 will swing in the water when the water surface fluctuates. During the swinging of the floating plate 9 in the water, the conductive component 10 will be disconnected, causing the water pressure monitor 1 to stop power supply, and the water pressure monitor 1 cannot monitor the water pressure, thereby avoiding the problem of false alarm of the water pressure monitor 1 due to the water pressure error caused by the water surface fluctuation.

[0042] When the water level inside the mine rises, the floating plate 9 first drives the sliding block 6 to rise through the connecting component 8. During this process, the limiting component 11 also starts to act to limit the floating plate 9, so that the floating plate 9 cannot swing in the water, so that the water pressure monitor 1 can always remain powered on, and then continue to monitor the water pressure to ensure that during the rising water level, it is determined whether the water pressure inside the mine will cause harm, so as to promptly alarm and notify the staff to pay attention to water safety.

[0043] In the above scheme, the conductive component 10 includes a plurality of conductive columns 14 fixedly connected to the water pressure monitor 1, the upper end of the conductive column 14 is connected to a conductive sleeve 15, a conductive slide rod 16 is slidably connected inside the conductive sleeve 15, the top of the conductive slide rod 16 is connected to an electrical connector 17, the electrical connector 17 is connected to a conductive rod 18 that passes through the floating plate 9, and the end of the conductive rod 18 is connected to a terminal 19.

[0044] Furthermore, the electrical connector 17 includes a conductive block 20 fixedly connected to the conductive sliding rod 16, a conductive ball 21 is rotatably connected inside the conductive block 20, a conductive rod 22 is fixedly connected to the conductive ball 21, a connecting ball 23 is fixedly connected to the end of the conductive rod 22, a connecting block 24 fixedly connected to the floating plate 9 is sleeved on the outside of the connecting ball 23, a first conductive connector 25 connected to the conductive rod 18 is fixedly connected inside the connecting block 24, a second conductive connector 26 cooperating with the first conductive connector 25 is fixedly connected inside the connecting ball 23, and the second conductive connector 26 is connected to the conductive rod 22. During installation, the terminal 19 is connected to the power line. At this time, the water pressure monitor 1 is connected to the conductive rod 18 and the terminal 19 through the conductive column 14, the conductive sleeve 15, the conductive slide rod 16, the conductive block 20, the conductive ball 21, the conductive rod 22, the first conductive joint 25 and the second conductive joint 26 to power the water pressure monitor 1. When the floating plate 9 swings, the connecting ball 23 will rotate inside the connecting block 24, so that the first conductive joint 25 and the second conductive joint 26 are disconnected due to misalignment. At this time, the power supply of the water pressure monitor 1 is disconnected and the water pressure cannot be monitored, thereby avoiding false alarms caused by water surface fluctuations. At the same time, through the action of the conductive ball 21 and the conductive rod 22 and the connecting ball 23 and the connecting block 24, the floating plate 9 can swing freely without being affected by the line, and can be in a power-off state when the floating plate 9 swings freely. In the present solution, a plurality of groups of connecting blocks 24 are provided, and a plurality of groups of first conductive joints 25 and second conductive joints 26 are provided accordingly. The plurality of groups of first conductive joints 25 and second conductive joints 26 must all correspond to each other in order to realize the power supply of the water pressure monitor 1, so as to avoid the water pressure monitor 1 being in a reciprocating cycle of on and off when the floating plate 9 swings regularly. The provision of the plurality of groups of first conductive joints 25 and second conductive joints 26 can ensure that the water pressure monitor 1 is always in a power-off state when the floating plate 9 swings.

[0045] The connecting assembly 8 in this embodiment includes a plurality of groups of first fixed blocks 31 fixedly connected to the floating plate 9. The plurality of first fixed blocks 31 are arranged in a circle on the inner wall of the floating plate 9. A first rotating ball 32 is rotatably connected inside each first fixed block 31. A connecting rod 33 is fixedly connected to the outside of the first rotating ball 32. A second fixed block 35 is fixed at a position corresponding to each first fixed block 31 on the outer circumferential surface of the sliding block 6. The end of the connecting rod 33 extends to the inside of the second fixed block 35 and is fixedly connected to a second rotating ball 34. The first rotating ball 32 and the second rotating ball 34 can rotate freely inside the first fixed block 31 and the second fixed block 35 respectively. A flexible connection is formed between the floating plate 9 and the sliding block 6, so that the floating plate 9 can swing freely.

[0046] The limiting assembly 11 in this embodiment includes a first prismatic column 37 slidably connected to the column 5, both ends of the first prismatic column 37 are fixedly connected with first movable blocks 38, the two first movable blocks 38 are also slidably connected to the column 5, and the two first movable blocks 38 are fixedly connected with a first connecting column 39 on the side facing away from each other. The first connecting column 39 first extends to the floating plate 9 in the horizontal direction, then in the inclined direction, and finally in the vertical direction, and the first connecting column 39 is connected to the floating plate 9 through a third spring 40. It should be noted that the third spring 40 is used because the third spring 40 can reduce the restriction on the free swinging of the floating plate 9, and the third spring 40 can also facilitate the resetting of the floating plate 9 after swinging. The first prismatic column 37 is connected to one end of the linkage member 41, and the other end of the linkage member 41 is connected to a connecting plate 42. A second prismatic column 43 is slidably connected to the middle of the connecting plate 42. Both ends of the second prismatic column 43 are fixedly connected to second moving blocks 44. The second moving block 44 is slidably connected to the column 5, and the second moving block 44 is connected to the connecting ring 12 via a second connecting column 45. The linkage member 41 includes a first rack 46 fixedly connected to the first prismatic column 37, a flat gear 47 is meshed on the outer side of the first rack 46, a rotating shaft 48 rotatably connected to the column 5 is fixedly connected to the axis of the flat gear 47, a second rack 49 is meshed on the outer side of the flat gear 47, a sliding member 50 for driving the second rack 49 to slide in the horizontal direction is connected to the second rack 49, a sliding groove 51 adapted to the second prismatic column 43 is provided on the first rack 46, and an end of the second rack 49 is connected to a reset member 52 connected to the first prismatic column 37, and the reset member 52 is used to drive the second rack 49 to reset. When the water level rises, the floating plate 9 is driven to rise by the buoyancy of the water. The rising floating plate 9 acts on the third spring 40 to drive the first connecting column 39 to rise. The movement of the first connecting column 39 causes the first moving block 38 to drive the first prismatic column 37 to move. The first rack 46 rises accordingly to drive the flat gear 47 to rotate. The flat gear 47 meshes with the second rack 49 and drives it to move downward. When the second rack 49 moves downward, it will drive the second prismatic column 43 to move downward through the connecting piece 42. The second connecting column 45 also moves downward accordingly, and finally the connecting ring 12 and the squeezing column 13 move downward. Therefore, in the early stage of the water level rise, the floating plate 9 is in an ascending state and the squeezing column 13 will move downward, so that the squeezing column 13 squeezes the floating plate 9 through the cooperation of the squeezing column 13 and the floating plate 9. At this time, the floating plate 9 cannot swing freely, ensuring that the water pressure monitor 1 is always in a powered state to monitor the water pressure.

[0047] After the squeezing column 13 squeezes the floating plate 9, the rising water level will continue to drive the floating plate 9 to rise. At this time, the squeezing column 13 cannot continue to move relative to the floating plate 9. Then, as the floating plate 9 continues to rise, the column 5 begins to rise and move synchronously with the floating plate 9, the sleeve 4 extends relative to the fixed column 3, and the conductive sliding rod 16 extends relative to the conductive sleeve 15.

[0048] When the water level stops rising, in order to avoid false alarm of the water pressure monitor 1 due to water surface fluctuations, it is necessary to reset the second rack 49 through the sliding member 50 and the reset member 52. The second rack 49 pulls the connecting piece 42 to reset the second prismatic column 43, so that the connecting ring 12 drives the extrusion column 13 to reset away from the floating plate 9. At this time, the floating plate 9 is released from the limit and resumes free swinging, which can avoid false alarms caused by water fluctuations.

[0049] When the above scheme is implemented, the sliding member 50 includes a magnetic strip 53 fixedly connected to the second rack 49, the magnetic strip 53 is slidably connected to the column 5 and has the same length as the second rack 49, an electromagnet 54 is installed on one side of the magnetic strip 53, and the electromagnet 54 is fixedly connected to the column 5 through a fixing frame 55. The reset member 52 includes a moving column 7 slidably connected to the first prismatic column 37, a fourth spring 27 fixedly connected to the first prismatic column 37 is fixedly connected to the moving column 7, a sliding rod 28 is slidably connected to the moving column 7 along the vertical direction, a fixing plate 29 is fixedly connected to the end of the sliding rod 28, the fixing plate 29 is connected to the upper end of the second rack 49, a tension spring 30 is arranged between the fixing plate 29 and the first prismatic column 37, and the tension spring 30 is sleeved on the sliding rod 28. When the second rack 49 moves, it drives the fixed plate 29 to move, and the tension spring 30 is continuously stretched. When the second rack 49 needs to be reset, the electromagnet 54 is magnetized and drives the magnetic strip 53 to move toward the electromagnet 54, and the second rack 49 drives the moving column 7 and the connecting plate 42 to slide, and the moving column 7 squeezes the fourth spring 27. After the second rack 49 moves, it will move away from the flat gear 47. After the second rack 49 moves away from the flat gear 47, the second rack 49 moves up and resets under the action of the tension spring 30, and then the electromagnet 54 is demagnetized. Through the action of the fourth spring 27, the moving column 7 drives the second rack 49 to move horizontally and reset, and finally the second rack 49 is restored to the meshing state with the flat gear 47, so as to facilitate the next limiting of the floating plate 9.

[0050] It should be noted that: during the process of the extrusion column 13 squeezing the floating plate 9, the extrusion column 13 is in a downward state, while the floating plate 9 is in an upward state, and the two slide toward each other, but when resetting, only the extrusion column 13 moves up and resets while the floating plate 9 remains stationary. Therefore, during the resetting of the second rack 49, the second prismatic column 43 is driven to move up and reset through the connecting piece 42, and the second prismatic column 43 drives the connecting ring 12 and the extrusion column 13 to reset through the second connecting column 45. In this state, the distance the second prismatic column 43 moves up and resets is the distance the extrusion column 13 moves down plus the distance the floating plate 9 rises. Therefore, after the second prismatic column 43 moves up, it will move relative to the first rack 46. In order to avoid motion interference between the two, a slide groove 51 is opened on the first rack 46 to cooperate with the sliding of the second prismatic column 43.

[0051] As a preferred embodiment, multiple groups of extrusion columns 13 can be provided and arranged in a circle at the bottom end of the connecting ring 12 , which is beneficial to improving the stability of the extrusion of the floating plate 9 .

[0052] Working principle: The entire device is fixed in the water body to be detected through the support frame 2, the floating plate 9 floats on the water surface, and the water pressure is monitored by the water pressure monitor 1. When the water surface fluctuates, the floating plate 9 swings freely. During the swinging of the floating plate 9 in the water, the connecting ball 23 rotates inside the connecting block 24, and the first conductive connector 25 and the second conductive connector 26 are disconnected from each other. At this time, the power supply of the water pressure monitor 1 is disconnected, and the water pressure cannot be monitored, thereby avoiding false alarms caused by water surface fluctuations. When the water level rises, the buoyancy of the water drives the floating plate 9 to rise, and the floating plate 9 drives the first connecting column 39 to rise through the third spring 40. The movement of the first connecting column 39 causes the first moving block 38 to drive the first prismatic column 37 to move, and the first rack 46 and the first prismatic column 37 rise synchronously to drive the flat gear 47 to rotate. The second rack 49 will move downward due to the engagement with the flat gear 47. When the second rack 49 moves downward, it will drive the second prismatic column 43 to move downward through the connecting piece 42. The movement of the second prismatic column 43 causes the second moving block 44 to drive the second connecting column 45 to move downward, and the connecting ring 12 and the extrusion column 13 move downward. The extrusion column 13 squeezes the floating plate 9 so that it cannot swing freely. The water pressure monitor 1 is always in a powered state to monitor the water pressure.

[0053] When the water level stops rising, the squeezing column 13 needs to be reset. The electromagnet 54 is magnetized and drives the magnetic strip 53 to move. The movement of the magnetic strip 53 causes the second rack 49 to move. When the second rack 49 moves, it will drive the moving column 7 and the connecting piece 42 to slide. During the movement of the moving column 7, the fourth spring 27 will be squeezed, and the second rack 49 will move away from the flat gear 47 after moving. When the second rack 49 moves away from the flat gear 47, the tension spring 30 will pull the second rack 49 to move up and reset. After that, the electromagnet 54 is demagnetized. Through the action of the fourth spring 27, the moving column 7 drives the second rack 49 to move horizontally and reset, and then the second rack 49 resumes the meshing state with the flat gear 47, so as to facilitate the next limiting of the floating plate 9.

[0054] It should be supplemented that: in this embodiment, a displacement sensor is installed inside the column 5, and the displacement sensor is used to detect changes in water level. The fixed column 3 and the sleeve 4 have a certain damping, and under the action of the damping, when the floating plate 9 swings in the water, the column 5 always remains fixed, and the data detected by the displacement sensor does not change, thereby avoiding data false alarms. When the water level rises, the floating plate 9 first rises to contact with the squeezing column 13, and by controlling the area of ​​the floating plate 9, the buoyancy of the water can overcome the damping between the fixed column 3 and the sleeve 4. Thereafter, the floating plate and the column 5 rise synchronously, and the distance when the floating plate 9 rises to contact with the squeezing column 13 is a fixed value. Therefore, the change in water level is divided into two parts. The first part is the distance that the floating plate 9 rises after the floating plate 9 is squeezed and matched with the squeezing column 13, and the second part is the distance that the sliding column 5 rises after the floating plate 9 is squeezed and matched with the squeezing column 13. The second part can be monitored in real time by the displacement sensor. The distance that the floating plate 9 rises in the first part is a set of fixed values, and the sum of the two parts of data is the change in the overall water level.

[0055] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A water pressure monitoring device for mine water hazards, comprising: A water pressure monitor (1), wherein the bottom end of the water pressure monitor (1) is fixedly connected to a support frame (2), the top end is fixedly connected to a fixed column (3), the outer side surface of the fixed column (3) is sleeved with a sleeve (4), the top end of the sleeve (4) is fixedly connected to a column (5), the outer side surface of the column (5) is slidably sleeved with a sliding block (6), and a displacement sensor is installed in the column (5); It is characterized by further comprising: a connecting component (8), the connecting component (8) being mounted on the sliding block (6), a floating plate (9) being arranged on the periphery of the sliding block (6), the connecting component (8) being used to connect the sliding block (6) and the floating plate (9), and the floating plate (9) being placed in a floating state by the connecting component (8); A conductive component (10), the conductive component (10) being connected to the water pressure monitor (1), and the conductive component (10) being used to control the on and off of the water pressure monitor (1); A limit assembly (11) is arranged in cooperation with the floating plate (9) and is used to abut against the upper end surface of the floating plate (9) when the water level rises. The limit assembly (11) comprises a connecting ring (12) mounted on the top end of the floating plate (9), and the bottom end of the connecting ring (12) is fixedly connected to an extrusion column (13).

2. A water pressure monitoring device for mine water hazards according to claim 1, characterized in that: The conductive assembly (10) comprises a plurality of conductive columns (14) fixedly connected to the water pressure monitor (1), the upper end of the conductive column (14) being connected to a conductive sleeve (15), the conductive sleeve (15) being slidably connected to a conductive sliding rod (16), the top end of the conductive sliding rod (16) being connected to an electrical connector (17), the electrical connector (17) being connected to a conductive rod (18) penetrating the floating plate (9), the end of the conductive rod (18) being connected to a terminal (19).

3. A water pressure monitoring device for mine water hazards according to claim 2, characterized in that: The electrical connector (17) comprises a conductive block (20) fixedly connected to the conductive sliding rod (16); a conductive ball (21) is rotatably connected inside the conductive block (20); a conductive rod (22) is fixedly connected to the conductive ball (21); a connecting ball (23) is fixedly connected to the end of the conductive rod (22); a connecting block (24) fixedly connected to the floating plate (9) is sleeved on the outside of the connecting ball (23); a first conductive connector (25) connected to the conductive rod (18) is fixedly connected inside the connecting block (24); a second conductive connector (26) matched with the first conductive connector (25) is fixedly connected inside the connecting ball (23); the second conductive connector (26) is connected to the conductive rod (22).

4. A water pressure monitoring device for mine water hazards according to claim 3, characterized in that: The connecting assembly (8) comprises a plurality of groups of first fixed blocks (31) fixedly connected to the floating plate (9), the plurality of groups of first fixed blocks (31) being arranged in a circumferential manner on the inner wall of the floating plate (9), each of the first fixed blocks (31) being rotatably connected to a first rotating ball (32), the first rotating ball (32) being fixedly connected to a connecting rod (33) on its exterior, a second fixed block (35) being fixedly connected to a position corresponding to each first fixed block (31) on the outer circumferential surface of the sliding block (6), the end of the connecting rod (33) extending to the interior of the second fixed block (35) and being fixedly connected to a second rotating ball (34).

5. A water pressure monitoring device for mine water hazards according to claim 4, characterized in that: The limiting assembly (11) comprises a first prismatic column (37) slidably connected to the upright column (5), both ends of the first prismatic column (37) are fixedly connected to first moving blocks (38), and the two first moving blocks (38) are fixedly connected to first connecting columns (39) on the sides facing away from each other, the first connecting columns (39) first extend in a horizontal direction, then in an inclined direction, and finally in a vertical direction to the floating plate (9), and the first connecting columns (39) are connected to the floating plate (9) via a third spring (40); The first prismatic column (37) is connected to a linkage member (41), the other end of the linkage member (41) is connected to a connecting plate (42), the middle of the connecting plate (42) is slidably connected to a second prismatic column (43), the two ends of the second prismatic column (43) are fixedly connected to second moving blocks (44), the second moving block (44) is slidably connected to the column (5), and the second moving block (44) is connected to the connecting ring (12) via a second connecting column (45).

6. A water pressure monitoring device for mine water hazards according to claim 5, characterized in that: The linkage member (41) comprises a first rack (46) fixedly connected to the first prismatic column (37); a spur gear (47) is meshed on the outer side of the first rack (46); a rotating shaft (48) rotatably connected to the column (5) is fixedly connected to the axis of the spur gear (47); a second rack (49) is meshed on the outer side of the spur gear (47); a sliding member (50) for driving the second rack (49) to slide in a horizontal direction is connected to the second rack (49); a sliding groove (51) adapted to the second prismatic column (43) is provided on the first rack (46); and an end of the second rack (49) is connected to a reset member (52) connected to the first prismatic column (37).

7. A water pressure monitoring device for mine water hazards according to claim 6, characterized in that: The sliding member (50) comprises a magnetic strip (53) fixedly connected to the second rack (49); the magnetic strip (53) is slidably connected to the column (5) and has the same length as the second rack (49); an electromagnet (54) is installed on one side of the magnetic strip (53); the electromagnet (54) is fixedly connected to the column (5) via a fixing frame (55).

8. A water pressure monitoring device for mine water hazards according to claim 7, characterized in that: The reset member (52) comprises a movable column (7) slidably connected to the first prismatic column (37); a fourth spring (27) fixedly connected to the movable column (7) and fixedly connected to the first prismatic column (37); a sliding rod (28) slidably connected to the movable column (7) in a vertical direction; a fixed plate (29) is fixedly connected to the end of the sliding rod (28); the fixed plate (29) is connected to the upper end of the second rack (49); a tension spring (30) is arranged between the fixed plate (29) and the first prismatic column (37); and the tension spring (30) is sleeved on the sliding rod (28).

9. A water pressure monitoring device for mine water hazards according to any one of claims 1 to 8, characterized in that: The extrusion columns (13) are provided in multiple groups and are arranged in a circle at the bottom end of the connecting ring (12).

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