Water control device for coal mine

Abstract

The utility model discloses a coal mine water control device which comprises a set of supporting rods, the bottom ends of the set of supporting rods are fixedly connected with a base, the upper ends of the set of supporting rods are respectively provided with a sliding groove, a supporting plate is fixedly connected between the set of supporting rods, and the supporting plate is located above the sliding grooves. The alarm is fixedly connected to the supporting plate, and a switch electrically connected with the alarm is arranged at the bottom of the supporting plate; the floating block is located below the supporting plate, sliding blocks matched with the sliding grooves are fixedly connected to the two sides of the floating block respectively, and first elastic assemblies are arranged between the sliding blocks and the upper walls of the sliding grooves; a through limiting groove is formed in the bottom wall of the sliding groove, and a shaft rod is movably connected into the limiting groove. Compared with the prior art, the water prevention and control device for the coal mine has the advantages that the thrust for pressing the alarm switch can be increased, the alarm can be ensured to be normally turned on, and then underground operating personnel are prompted.

Description

Technical Field

[0001] The utility model belongs to the technical field of water prevention and control for coal mines, and in particular relates to a water prevention and control device for coal mines. Background Art

[0002] Coal mines are mines specially used for mining coal. They are usually located underground, which makes them vulnerable to groundwater infiltration. Once a large amount of groundwater infiltrates into the coal mine, it will cause mining accidents and threaten the personal safety of miners. When mining in coal mines, water prevention and control early warning devices are generally installed in different areas so that when water leaks begin to appear in the mine, they can be discovered in time to better respond or allow miners to escape in time.

[0003] The working principle of the existing flood control warning device is generally to drive the float block upward when the water level rises, and press the switch of the alarm through the float block, so that the alarm sounds to alert the workers in the well. However, there are still some problems. First, it cannot be guaranteed that the float block has enough thrust to press the switch of the alarm. Second, when the switch of the alarm is stuck, the switch of the alarm cannot be pressed by relying solely on the buoyancy of water. Utility Model Content

[0004] The utility model aims to provide a water prevention and control device for coal mines, which can increase the thrust of pressing the alarm switch, ensure that the alarm can be turned on normally, and then prompt the operating personnel underground.

[0005] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a water prevention and control device for coal mines, including a group of support rods, the bottom ends of the group of support rods are fixedly connected to a base, the upper ends of the group of support rods are respectively provided with a slide groove, and a support plate is fixedly connected between the group of support rods, and the support plate is located above the slide groove; an alarm, the alarm is fixedly connected to the support plate, and a switch electrically connected to the alarm is provided at the bottom of the support plate; a floating block, the floating block is located below the support plate, and both sides of the floating block are respectively fixedly connected with sliders matching the slide groove, and a first elastic component is provided between the slider and the upper wall of the slide groove; a limiting plate, the bottom wall of the slide groove is provided with a through limiting groove, and a shaft rod is movably connected in the limiting groove, and a limiting plate is fixedly connected to the shaft rod, and a second elastic component is provided between the limiting plate and the side wall of the limiting groove; a weight-increasing box, a pull rope is fixedly connected between the weight-increasing box and the limiting plate, and a plurality of water-permeable holes are provided on the weight-increasing box; the limiting plate can resist the floating block without being subjected to external force.

[0006] In one or more embodiments of the present invention, a plurality of fixing holes are provided on the base.

[0007] In one or more embodiments of the present invention, a pressing column matching the switch is fixedly connected to the floating block.

[0008] In one or more embodiments of the present invention, a sealing ring is fixedly connected to the pressing column, and a sealing groove matching the sealing ring is formed in the support plate.

[0009] In one or more embodiments of the present invention, the support plate is internally threadedly connected with a limiting bolt.

[0010] In one or more embodiments of the present invention, a protective cover is arranged above the alarm, and a support column is fixedly connected between the protective cover and the support rod.

[0011] In one or more embodiments of the present invention, the first elastic component may be a first spring.

[0012] In one or more embodiments of the present invention, the second elastic component may be a second spring.

[0013] In one or more embodiments of the present invention, the water permeable hole on the weight-increasing box may be located at the upper end of the weight-increasing box.

[0014] In one or more embodiments of the present invention, the water permeable holes on the weight-increasing box may be evenly distributed on the weight-increasing box.

[0015] Compared with the prior art, the utility model of a coal mine water prevention and control device can increase the thrust of pressing the alarm switch, ensure that the alarm can be turned on normally, and then prompt the operating personnel underground. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic structural diagram of a water prevention and control device for coal mines in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0019] Figure 3 This is a schematic diagram of a first use state of a water prevention and control device for coal mines in one embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of a second use state of a water prevention and control device for coal mines in one embodiment of the utility model.

[0021] Description of main reference numerals:

[0022] 11. Base; 12. Fixing hole; 21. Support rod; 22. Slide groove; 23. First spring; 31. Float; 32. Slider; 33. Press column; 41. Support plate; 42. Alarm; 43. Switch; 51. Limiting groove; 52. Shaft rod; 53. Limiting plate; 54. Second spring; 55. Pull rope; 56. Weight-increasing box; 61. Protective cover; 62. Support column; 71. Limiting bolt; 81. Sealing ring. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] like Figures 1 to 4 As shown, a water prevention and control device for coal mines in one embodiment of the utility model comprises:

[0025] A group of support rods 21, the bottom ends of the group of support rods 21 are fixedly connected to the base 11, the upper ends of the group of support rods 21 are respectively provided with slide grooves 22, and the support plates 41 are fixedly connected between the group of support rods 21, and the support plates 41 are located above the slide grooves 22.

[0026] The alarm 42 is fixedly connected to the support plate 41 , and a switch 43 electrically connected to the alarm 42 is provided at the bottom of the support plate 41 .

[0027] A floating block 31, the floating block 31 is located below the support plate 41, and two sides of the floating block 31 are respectively fixedly connected with sliders 32 matching the slide groove 22, and a first elastic component is provided between the slider 32 and the upper wall of the slide groove 22;

[0028] The limiting plate 53 and the bottom wall of the slide groove 22 are provided with a penetrating limiting groove 51 , in which the limiting groove 51 is movably connected with a shaft rod 52 , to which the limiting plate 53 is fixedly connected, and a second elastic component is provided between the limiting plate 53 and the side wall of the limiting groove 51 .

[0029] The weight-increasing box 56 is fixedly connected with a pull rope 55 between the weight-increasing box 56 and the limiting plate 53 , and a plurality of water-permeable holes are opened on the weight-increasing box 56 .

[0030] The limiting plate 53 can resist the floating block 31 without external force.

[0031] Specifically, the base 11 is fixed on the ground. When the water level rises, water enters the weight-added box 56 through the water-permeable holes on the weight-added box 56. At this time, the weight of the weight-added box 56 increases. The limit plate 53 is pulled downward by the pull rope 55. As the limit plate 53 is pulled by the pull rope 55 to rotate, the limit plate 53 no longer resists the floating block 31. The floating block 31 moves upward under the tension of the first spring 23, and then presses the switch 43, so that the alarm 42 sounds an alarm to alert the operators in the well.

[0032] The pulling force of the first spring 23 can increase the impact force of the floating block 31, thereby increasing the pressing force on the switch 43, ensuring that the switch 43 can be pressed to turn on the alarm 42.

[0033] Compared with the existing method of pressing the switch 43 only by the buoyancy of water, it is more stable and reliable. When the switch 43 is stuck, the switch 43 can also be pressed by a larger impact force.

[0034] Furthermore, a plurality of fixing holes 12 are provided on the base 11. The base 11 can be stably fixed on the ground by the cooperation of the pins and the fixing holes 12.

[0035] Furthermore, a pressing column 33 matching the switch 43 is fixedly connected to the floating block 31. The position of the pressing column 33 corresponds to the position of the switch 43, and the switch 43 can be pressed in advance by the pressing column 33 to avoid the situation where the tension of the first spring 23 is insufficient.

[0036] Furthermore, a sealing ring 81 is fixedly connected to the pressing column 33, and a sealing groove matching the sealing ring 81 is provided in the support plate 41. When the pressing column 33 presses the switch 43, the sealing ring 81 can be snapped into the sealing groove to increase the sealing performance. As the water level rises, water is prevented from entering the alarm 42 through the connection between the switch 43 and the alarm 42 to damage the alarm 42. Preferably, the alarm 42 can be selected with better waterproof performance, and the alarm can still be sounded when the water submerges the alarm 42.

[0037] Furthermore, the support plate 41 is internally threaded with a limiting bolt 71. When not in use, the limiting bolt 71 can abut against the floating block 31 and the pressing column 33, so that the pressing column 33 does not contact the switch 43.

[0038] A protective cover 61 is arranged above the alarm 42, and a support column 62 is fixedly connected between the protective cover 61 and the support rod 21. The protective cover 61 can protect the alarm 42 and prevent the alarm 42 from being impacted by gravel in the well.

[0039] Further, the first elastic component may be the first spring 23, or may be other elastic devices.

[0040] Furthermore, the second elastic component may be a second spring 54, or may be other elastic devices.

[0041] The water permeable hole on the weight-increasing box 56 can be located at the upper end of the weight-increasing box 56. When water submerges the weight-increasing box 56, water can enter the inside of the weight-increasing box 56 through the water permeable hole to increase the weight of the weight-increasing box 56.

[0042] The water-permeable holes on the weight-increasing box 56 can be evenly distributed on the weight-increasing box 56. That is, some objects that absorb water and become heavier can be stored in the weight-increasing box 56. For example, perlite, sponge, etc. The weight of the weight-increasing box 56 is further increased to ensure that the weight-increasing box 56 can pull the limit plate 53 so that the limit plate 53 no longer abuts against the floating block 31.

[0043] When using, refer to Figure 1 to Figure 4 As shown, the base 11 is fixed at a place where the water level needs to be monitored. When the water level rises and passes through the weight-added box 56, the weight of the weight-added box 56 can be increased, and then the limit plate 53 is pulled by the pull rope 55. The limit plate 53 rotates around the shaft 52 as the axis, and no longer resists the floating block 31. The floating block 31 moves upward under the action of the first spring 23, and then presses the switch 43, so that the alarm 42 sounds an alarm, which is used to remind the workers underground.

[0044] Compared with the prior art, the utility model of a coal mine water prevention and control device can increase the thrust of pressing the alarm switch, ensure that the alarm can be turned on normally, and then prompt the operating personnel underground.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water prevention and control device for coal mines, characterized in that: include: A group of support rods, wherein the bottom ends of the group of support rods are fixedly connected to a base, the upper ends of the group of support rods are respectively provided with slide grooves, and a support plate is fixedly connected between the group of support rods, and the support plate is located above the slide groove; An alarm is fixedly connected to the support plate, and a switch electrically connected to the alarm is provided at the bottom of the support plate; A floating block, the floating block is located below the support plate, and sliding blocks matching the slide groove are fixedly connected to both sides of the floating block, and a first elastic component is arranged between the sliding block and the upper wall of the slide groove; A limiting plate, wherein the bottom wall of the slide slot is provided with a through limiting slot, a shaft rod is movably connected in the limiting slot, a limiting plate is fixedly connected to the shaft rod, and a second elastic component is provided between the limiting plate and the side wall of the limiting slot; A weight-increasing box, a pull rope is fixedly connected between the weight-increasing box and the limiting plate, and a plurality of water-permeable holes are opened on the weight-increasing box; The limiting plate can resist the floating block without being subjected to external force.

2. A water prevention and control device for coal mines according to claim 1, characterized in that: The base is provided with a plurality of fixing holes.

3. A water prevention and control device for coal mines according to claim 1, characterized in that: A pressing column matching the switch is fixedly connected to the floating block.

4. A water prevention and control device for coal mines according to claim 3, characterized in that: A sealing ring is fixedly connected to the pressing column, and a sealing groove matching the sealing ring is provided in the supporting plate.

5. A coal mine water prevention and control device according to claim 1, characterized in that: The inner thread of the support plate is connected with a limiting bolt.

6. A coal mine water prevention and control device according to claim 1, characterized in that: A protective cover is arranged above the alarm, and a support column is fixedly connected between the protective cover and the support rod.

7. A water prevention and control device for coal mines according to claim 1, characterized in that: The first elastic component may be a first spring.

8. A water prevention and control device for coal mines according to claim 1, characterized in that: The second elastic component may be a second spring.

9. A coal mine water prevention and control device according to claim 1, characterized in that: The water permeable hole on the weight-increasing box may be located at the upper end of the weight-increasing box.

10. A water prevention and control device for coal mines according to claim 1, characterized in that: The water permeable holes on the weight-increasing box can be evenly distributed on the weight-increasing box.

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