Automatic drainage device for accumulated water in underground coal mine

Abstract

The utility model discloses an automatic drainage device for accumulated water in an underground coal mine, and particularly relates to the technical field of drainage devices, which comprises a trigger component, the trigger component and a filter hole ensure that the device cannot be started when the accumulated water does not reach a set depth, and the accumulated water is primarily filtered through the filter hole; the core part of the device is the combination of the moving disc and the pressure sensor, the moving disc is compressed under the action of the telescopic spring at the bottom along with the increase of the depth of accumulated water, and the touch rod is in contact with the pressure sensor in the process, so that the depth of the accumulated water is monitored in real time. When accumulated water reaches a set depth, the pressure sensor senses pressure change, and the trigger device starts the external water pump to start automatic drainage. According to the automatic process, the requirement for manual intervention is greatly reduced, the operation efficiency and accuracy are improved, especially under the scene that the number of drainage points is large or geographical positions are scattered, the underground flooding risk can be remarkably reduced through the automatic device, and the automatic level and efficiency of ponding treatment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage devices, in particular to an automatic drainage device for underground water accumulation in coal mines. Background Technique

[0002] Underground mine drainage refers to the general term for underground mine drainage methods and drainage facilities. Compared with open-pit mine drainage, its characteristic is that flooding is not allowed underground. Except for some hillside ore deposits in underground mines that can adopt gravity drainage, deep underground mines all adopt fixed pumping stations for mechanical drainage, and the water is discharged through pipelines.

[0003] In the prior art, the publication number CN118327672A discloses a drainage device for underground mines, including an outer cover. A water filtering cover is fixedly connected to the top end of the outer cover. A drain pipe is fixedly communicated with the outer wall of the outer cover. A sliding plate is fixedly connected to the inner wall of the outer cover. An arc-shaped plate fixedly connected to the inner wall of the outer cover is arranged between the sliding plate and the drain pipe. A filtering mechanism is arranged inside the outer cover.

[0004] Although the above device can perform certain treatment on accumulated water, it requires manual operation to start the treatment of accumulated water. Relying on manual inspection may lead to the failure to timely treat accumulated water. Especially when the number of drainage points is large or the geographical locations are scattered, missed inspections are likely to occur. The drainage cycle of manual operation may not necessarily be synchronized with the actual needs, increasing the risk of flooding. For this reason, we propose an automatic drainage device for underground water accumulation in coal mines to solve the above problems. Content of the Utility Model

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] For this reason, the technical solution adopted by the utility model is as follows:

[0007] An automatic drainage device for underground water accumulation in coal mines includes an assembly cylinder. A trigger assembly is arranged at the bottom of the inner cavity of the assembly cylinder. A cleaning assembly is arranged at the top of the assembly cylinder. An annular groove is formed in the middle of the assembly cylinder. A plurality of filtering holes penetrating the assembly cylinder are formed on the surface of the annular groove. A drain pipe is fixedly connected to one side of the assembly cylinder. The cleaning assembly includes a motor. The output end of the motor is fixedly connected with an installation cylinder. The installation cylinder is sleeved on one end of the top of the assembly cylinder. Two connecting rollers are fixedly connected to both sides of the bottom of the installation cylinder. The two connecting rollers are symmetrically distributed along the axis of the installation cylinder. A sweeping seat is fixedly connected to one side of the bottom of the connecting roller close to the assembly cylinder. One side of the sweeping seat close to the assembly cylinder contacts the position of the filtering hole. The trigger assembly includes a moving disk. The moving disk is placed inside the assembly cylinder. A fixed cylinder is fixedly connected to the bottom of the moving disk. A telescopic spring is arranged inside the fixed cylinder. A pressure sensor is arranged at one end of the telescopic spring away from the fixed cylinder. A contact rod is arranged at the input end of the pressure sensor.

[0008] Preferably, a plurality of the filtering holes are evenly distributed around the axis of the assembly cylinder, and one end of the drain pipe away from the assembly cylinder is communicated with an external water pump.

[0009] Preferably, the motor is arranged on the top of the assembly cylinder, and the output end of the motor faces the assembly cylinder.

[0010] Preferably, a fixing ring is sleeved on the top of the assembly cylinder, the inner wall of the fixing ring is fixedly connected with the assembly cylinder, and a positioning ring groove is formed on the outer wall of the fixing ring.

[0011] Preferably, a plurality of balls are installed in the inner cavity of the positioning ring groove, and the plurality of balls are evenly distributed around the axis of the fixing ring. One side of the ball away from the fixing ring contacts the installation cylinder.

[0012] Preferably, the moving disk is slidably connected with the inner wall of the assembly cylinder, and the moving disk is arranged at the bottom of the filtering holes and the drain pipe.

[0013] Preferably, an assembly ring groove is formed around the moving disk, a rubber ring is sleeved on the inner wall of the assembly ring groove, and the outer wall of the rubber ring contacts the inner wall of the assembly cylinder.

[0014] Preferably, the pressure sensor is fixedly connected with the bottom of the inner cavity of the assembly cylinder, and the top of the contact rod is fixedly connected with the moving disk.

[0015] By adopting the above technical solutions, the beneficial effects obtained by the present utility model are as follows:

[0016] In the present utility model, the design of the automatic drainage device fully considers the automatic requirements of water accumulation monitoring and drainage, and improves the overall drainage efficiency and system stability. The trigger assembly and filtering holes at the bottom of the device play a key role, ensuring that the device will not start when the water accumulation does not reach the set depth. The water accumulation is preliminarily filtered through the filtering holes, which not only prevents impurities from entering the drainage pipeline, but also effectively reduces the risk of blockage caused by impurities. The design of the filtering holes improves the durability and maintenance convenience of the system.

[0017] The core part of the device is the combination of the moving disk and the pressure sensor. As the depth of the water accumulation increases, the moving disk is compressed under the action of the telescopic spring at the bottom. This process makes the contact rod contact the pressure sensor, so as to monitor the depth of the water accumulation in real time. When the water accumulation reaches the set depth, the pressure sensor senses the pressure change and triggers the device to start the external water pump to start automatic drainage. This automatic process greatly reduces the need for manual intervention and improves the operation efficiency and accuracy.

[0018] To ensure the filtering effect during the drainage process, the device is also equipped with a cleaning component. The electric motor is fixed at the top of the assembly cylinder and drives the sweeping seat to clean the filtering holes. The connecting roller automatically cleans the filtering holes through the sweeping seat, preventing the filtering holes from being blocked due to the accumulation of impurities. This design not only improves the drainage efficiency but also extends the service life of the device.

[0019] The device is also equipped with a solenoid valve, whose function is to discharge air and introduce air to ensure that the moving disk can move down smoothly during operation and ensure the normal operation of the triggering component. The design of the solenoid valve improves the working stability and reliability of the device and ensures the continuous operation of the drainage system.

[0020] The design of the automatic drainage device integrates multiple key functions and can provide an efficient solution for automatic monitoring, drainage, filtration, and cleaning of accumulated water. Especially in scenarios where the number of drainage points is large or geographically dispersed, the automated device can significantly reduce the risk of flooding underground, improve the automation level and efficiency of dealing with accumulated water. This device not only optimizes the drainage operation, reduces the need for manual intervention, but also reduces the blockage problem of drainage pipes through accurate monitoring of the accumulated water depth and efficient filtration and cleaning, thereby improving the reliability and stability of the overall system. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the whole utility model.

[0022] Figure 2 It is a schematic diagram of the internal structure of the whole utility model.

[0023] Figure 3 It is a schematic structural diagram of the cleaning component of the utility model.

[0024] Figure 4 For the utility model Figure 1 The enlarged structural schematic diagram at position A in it.

[0025] Figure 5 It is a schematic structural diagram of the triggering component of the utility model.

[0026] In the figure: 1. Assembly cylinder; 101. Annular groove; 102. Filtering hole; 103. Drain pipe; 2. Cleaning component; 201. Electric motor; 202. Installation cylinder; 203. Fixed ring; 204. Positioning ring groove; 205. Ball; 206. Connecting roller; 207. Sweeping seat; 3. Triggering component; 301. Moving disk; 302. Assembly ring groove; 303. Rubber ring; 304. Fixed cylinder; 305. Telescopic spring; 306. Pressure sensor; 307. Contact rod. Detailed Implementation Modes

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment: As Figures 1-5 shown, the present invention provides an automatic drainage device for accumulated water in coal mines underground, including an assembly cylinder 1. A trigger assembly 3 is arranged at the bottom of the inner cavity of the assembly cylinder 1, and a cleaning assembly 2 is arranged at the top of the assembly cylinder 1. An annular groove 101 is formed in the middle of the assembly cylinder 1, and a plurality of filter holes 102 penetrating the assembly cylinder 1 are formed on the surface of the annular groove 101. The plurality of filter holes 102 are evenly distributed around the axis of the assembly cylinder 1. One side of the assembly cylinder 1 is fixedly connected to a drain pipe 103, and the end of the drain pipe 103 away from the assembly cylinder 1 is communicated with an external water pump. When the accumulated water does not reach a certain depth, the trigger assembly 3 will not start the external water pump and the cleaning assembly 2, and the accumulated water can be filtered to a certain extent through the filter holes 102 to prevent the drain pipe 103 from being blocked.

[0029] Furthermore, a motor 201 is arranged in the cleaning assembly 2. The motor 201 is arranged at the top of the assembly cylinder 1, and the output end of the motor 201 faces the assembly cylinder 1. The output end of the motor 201 is fixedly connected to an installation cylinder 202. The installation cylinder 202 is sleeved on one end of the top of the assembly cylinder 1. A fixing ring 203 is sleeved on the top of the assembly cylinder 1. The inner wall of the inner ring of the fixing ring 203 is fixedly connected to the assembly cylinder 1. A positioning ring groove 204 is formed on the outer wall of the fixing ring 203, and a plurality of balls 205 are installed in the inner cavity of the positioning ring groove 204. The plurality of balls 205 are evenly distributed around the axis of the fixing ring 203. The side of the ball 205 away from the fixing ring 203 is in contact with the installation cylinder 202. Two connecting rollers 206 are fixedly connected to both sides of the bottom of the installation cylinder 202. The two connecting rollers 206 are symmetrically distributed along the axis of the installation cylinder 202. One side of the bottom of the connecting roller 206 close to the assembly cylinder 1 is fixedly connected to a sweeping seat 207. The side of the sweeping seat 207 close to the assembly cylinder 1 is in contact with the position of the filter hole 102. When the device works, the motor 201 drives the sweeping seat 207 to clean the position of the filter hole 102 to prevent impurities from adhering to the position of the filter hole 102 and causing blockage.

[0030] Further, a moving disk 301 is provided in the trigger assembly 3. The moving disk 301 is placed inside the assembly cylinder 1 and is slidably connected to the inner wall of the assembly cylinder 1. The moving disk 301 is arranged at the bottom of the filtering hole 102 and the drain pipe 103. Assembly ring grooves 302 are formed around the moving disk 301, and a rubber ring 303 is sleeved on the inner ring wall of the assembly ring grooves 302. The outer ring wall of the rubber ring 303 contacts the inner wall of the assembly cylinder 1. A fixed cylinder 304 is fixedly connected to the bottom of the moving disk 301. A telescopic spring 305 is arranged inside the fixed cylinder 304. One end of the telescopic spring 305 away from the fixed cylinder 304 is provided with a pressure sensor 306. The pressure sensor 306 is fixedly connected to the bottom of the inner cavity of the assembly cylinder 1. A contact rod 307 is arranged at the input end of the pressure sensor 306. The top of the contact rod 307 is fixedly connected to the moving disk 301. When the water accumulation depth continuously increases, the pressure acts on the moving disk 301, causing the moving disk 301 to squeeze the telescopic spring 305 at the bottom, and the contact rod 307 can contact the pressure sensor 306, thereby starting the device to drain the water accumulation. It has automation. An electromagnetic valve for discharging air and allowing air to enter is provided at the bottom of the assembly cylinder 1.

[0031] Working principle: When using this device, there is a trigger assembly 3 and a filtering hole 102 at the bottom of the assembly cylinder 1 of the device. When the water accumulation does not reach the set depth, the device will not start. The water accumulation is preliminarily filtered through the filtering hole 102 to prevent impurities from entering the drain pipe 103 and causing blockage. The moving disk 301 in the trigger assembly 3 is located inside the assembly cylinder 1 and is slidably connected to the inner wall of the assembly cylinder 1. As the water accumulation depth increases, the moving disk 301 is compressed through the telescopic spring 305 at the bottom, and the contact rod 307 contacts the pressure sensor 306. This process enables the water accumulation depth to be monitored in real time. When the water accumulation reaches the set depth, the pressure sensor 306 senses the pressure change and triggers the device to start an external water pump to start automatic drainage. At the same time, the motor 201 in the cleaning assembly 2 drives the sweeping seat 207 to clean the filtering hole 102 to ensure that the filtering hole 102 is not blocked by impurities. The motor 201 is fixed at the top of the assembly cylinder 1 and drives the installation cylinder 202 and the connecting roller 206. The connecting roller 206 cleans the filtering hole 102 through the sweeping seat 207 to keep the filtering hole 102 unobstructed, thereby improving the drainage efficiency.

[0032] The bottom of the assembly cylinder 1 is equipped with a solenoid valve for discharging air and introducing air, ensuring that the moving disk 301 can move down smoothly during operation, triggering the component 3. This device realizes the automatic detection and drainage of the water accumulation depth through the pressure sensor 306 and the moving disk 301, reducing manual intervention and improving the automation level of drainage. The design of the filter holes 102 can effectively filter impurities in the water accumulation, preventing impurities from entering the drain pipe 103, thereby reducing the risk of blockage of the drain pipe 103. The sweeping seat 207 in the cleaning component 2 can automatically clean the filter holes 102, ensuring a lasting filtering effect and reducing drainage problems caused by the blockage of the filter holes 102. Effective air discharge and introduction are carried out through the solenoid valve, thereby improving the working stability of the device. The automatic drainage device not only improves the automation and efficiency of underground water accumulation treatment, enabling the timely treatment of water accumulation, especially when the number of drainage points is large or the geographical locations are scattered, the automatically operated device reduces the risk of underground flooding.

[0033] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. An automatic drainage device for underground water accumulation in a coal mine, characterized in that: The invention comprises an assembly cylinder (1), wherein a trigger assembly (3) is arranged at the bottom of the inner cavity of the assembly cylinder (1), a cleaning assembly (2) is arranged at the top of the assembly cylinder (1), an annular groove (101) is provided in the middle of the assembly cylinder (1), a plurality of filtering holes (102) penetrating the assembly cylinder (1) are provided on the surface of the annular groove (101), a drainage pipe (103) is fixedly connected to one side of the assembly cylinder (1), and the cleaning assembly (2) comprises an electric motor (201), an output end of the electric motor (201) is fixedly connected to a mounting cylinder (202), the mounting cylinder (202) is sleeved on one end of the top of the assembly cylinder (1), and connecting rollers (206) are fixedly connected to the two sides of the bottom of the mounting cylinder (202), and the connecting rollers (206) on both sides are connected to the two sides of the mounting cylinder (202). 206) are symmetrically distributed along the axis of the installation cylinder (202); a sweeping seat (207) is fixedly connected to the bottom of the connecting roller (206) on a side close to the assembly cylinder (1); a side of the sweeping seat (207) close to the assembly cylinder (1) contacts the filter hole (102); the trigger assembly (3) comprises a moving disk (301); the moving disk (301) is placed in the assembly cylinder (1); a fixed cylinder (304) is fixedly connected to the bottom of the moving disk (301); a telescopic spring (305) is built in the fixed cylinder (304); a pressure sensor (306) is arranged at one end of the telescopic spring (305) away from the fixed cylinder (304); a touch rod (307) is arranged at the input end of the pressure sensor (306).

2. The automatic drainage device for underground water accumulation in a coal mine according to claim 1, characterized in that: The plurality of filtering holes (102) are evenly distributed around the axis of the assembly barrel (1), and one end of the drainage pipe (103) away from the assembly barrel (1) is connected to an external water pump.

3. The automatic drainage device for underground water accumulation in a coal mine according to claim 1, characterized in that: The motor (201) is arranged on the top of the assembly cylinder (1), and the output end of the motor (201) faces the assembly cylinder (1).

4. The automatic drainage device for underground water accumulation in a coal mine according to claim 1, characterized in that: A fixing ring (203) is sleeved on the top of the assembly tube (1); the inner ring wall of the fixing ring (203) is fixedly connected to the assembly tube (1); and a positioning ring groove (204) is formed on the outer ring wall of the fixing ring (203).

5. The automatic drainage device for underground water accumulation in a coal mine according to claim 4, characterized in that: A plurality of balls (205) are installed in the inner cavity of the positioning ring groove (204), and the plurality of balls (205) are evenly distributed around the axis of the fixing ring (203), and the side of the balls (205) away from the fixing ring (203) is in contact with the installation cylinder (202).

6. The automatic drainage device for underground water accumulation in a coal mine according to claim 1, characterized in that: The moving disc (301) is slidably connected to the inner wall of the assembly cylinder (1), and the moving disc (301) is arranged at the bottom of the filtering hole (102) and the drainage pipe (103).

7. The automatic drainage device for underground water accumulation in a coal mine according to claim 1, characterized in that: The movable disc (301) is provided with an assembly annular groove (302) around its periphery. A rubber ring (303) is sleeved on the inner annular wall of the assembly annular groove (302). The outer annular wall of the rubber ring (303) contacts the inner wall of the assembly cylinder (1).

8. The automatic drainage device for underground water accumulation in a coal mine according to claim 1, characterized in that: The pressure sensor (306) is fixedly connected to the bottom of the inner cavity of the assembly cylinder (1), and the top of the touch rod (307) is fixedly connected to the moving disk (301).

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