Coal mine well water inflow measuring device

Abstract

The utility model discloses a coal mine well water inflow measuring device which comprises a working table and a movable block, idler wheels are arranged below the working table, a base is installed on the working table and is of a hollow cuboid structure with the upper portion in an open state, a lead screw is arranged in the base, and a socket and a support are arranged at the two ends of the base respectively. According to the utility model, after the workbench is moved to the side of a coal mine water well, the water immersion sensor is driven to move to the position close to the upper part of the circle center of a wellhead by rotating the second turntable, and then the water immersion sensor is driven to move to the position close to the center of the circle of the wellhead by rotating the first turntable, so that the water immersion sensor is driven to move to the position close to the center of the circle of the wellhead. The water immersion sensor is driven to move up and down, so that the water inflow of the coal mine well is measured, the situation that the water immersion sensor collides with the inner wall of the well is avoided, and the service life of the water immersion sensor is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of coal mine water inflow measurement, and in particular to a coal mine water inflow measurement device. Background Technology

[0002] Coal mine water wells are an indispensable infrastructure in coal mine production. They mainly undertake core functions such as mine drainage, water hazard prevention, and comprehensive utilization of water resources. By continuously discharging underground water, coal mine water wells keep roadways dry, preventing equipment damage, roadway collapse, or water inrush accidents caused by water accumulation, and ensuring safe production in the mine. In particular, accurately grasping the trend of well water inflow changes can identify abnormal water inflows in advance, allowing time to formulate prevention and control measures such as sealing and drainage, and reducing the probability of water hazard accidents.

[0003] Chinese patent CN220815758U discloses a coal mine water inflow measurement device. By placing the control box on a pallet and connecting it to a water immersion sensor, the water immersion sensor is taken out of the storage basket and placed into the mine water to be measured. The height of the water immersion sensor is then adjusted by rotating the second shaft with a handle and releasing the rope, thereby measuring the water inflow. This device effectively assembles and stores the water pressure and water immersion sensor and the control box, facilitating movement and transportation and reducing labor costs.

[0004] In the aforementioned patent, after moving the mobile frame to the side of the coal mine water well, the water immersion sensor is placed into the mine water to be measured. Finally, the height of the water immersion sensor is adjusted by adjusting the rope length, and the water inflow can be measured. However, personnel need to hold the water immersion sensor close to the water well before placing it into the mine water to be measured. There is a problem that the water immersion sensor is easily damaged by impact when it descends along the inner wall of the water well. Therefore, a coal mine water inflow measuring device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a coal mine well water inflow measurement device to solve the problem mentioned in the background art that the water immersion sensor is easily damaged by impact when it descends along the inner wall of the well. The technical solution of this utility model provides a solution that is significantly different from the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A coal mine well water inflow measurement device includes a workbench, characterized in that: a base and a movable block are arranged above the workbench; the base is a hollow cuboid structure with an open top; a drive mechanism for moving the movable block is arranged inside the base; a socket and a bracket are respectively arranged at both ends of the base; an extension plate is arranged on one side of the movable block; a cylinder is arranged at the upper end of the movable block; a fixed seat is arranged above the cylinder; a pressure block is arranged inside the fixed seat; a guide wheel is arranged at one end of the extension plate; a water immersion sensor is arranged inside the socket; and a winding wheel is arranged at the upper end of the bracket, with a rope arranged inside the winding wheel.

[0008] Preferably, one end of the rope passes between the pressure block and the cylinder, then wraps around the guide wheel, and finally connects to the water immersion sensor. A first turntable is provided on the side of the winding wheel, and the first turntable is connected to the shaft of the winding wheel.

[0009] Preferably, the base is provided with limit plates on both sides, and the sides of the two limit plates are provided with first limit grooves. The lower end of the movable block is provided with a first slider, which is installed inside the first limit groove. The driving mechanism is a lead screw, and the lower end of the movable block is threadedly connected to the lead screw. One end of the lead screw is provided with a second turntable.

[0010] Preferably, the fixed seat has an inverted U-shaped structure, the fixed seat is installed on the movable block, the cylinder is fixed on the movable block, and a second slider is provided on both sides of the pressure block. The upper ends of the two second sliders are connected by a top plate.

[0011] Preferably, a second limiting groove is provided on the inner wall of the fixed seat, the second slider is installed inside the second limiting groove, and a collar is provided on the top of the fixed seat.

[0012] Preferably, the collar has a threaded post inside, which is threadedly connected to the collar. A third turntable is provided at the upper end of the threaded post, and the lower end of the threaded post passes through the collar and is connected to the top plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses rollers to move the workbench to the side of the coal mine water well. At this time, the water immersion sensor faces the wellhead, and the pressure block and cylinder are in a closed state close to each other. First, the water immersion sensor is removed from the socket, and then the second turntable is rotated to move the movable block along the screw until the water immersion sensor moves to the top of the wellhead. Then, the first turntable is rotated to lower the water immersion sensor into the coal mine water well. When the water immersion sensor comes into contact with the well water, an alarm is triggered. At this time, the personnel record the height of the well water level by the release length of the rope. Finally, the personnel rotate the first turntable again to return the water immersion sensor to the top of the wellhead. After a set time, the water immersion sensor is lowered again until it comes into contact with the well water level and an alarm is triggered. The personnel record the height of the well water level again by the release length of the rope. The difference between the two measured heights can be used to obtain the water flow rate of the coal mine water well within the set time. At the same time, it avoids the water immersion sensor from colliding with the inner wall of the coal mine water well, thus improving the service life of the water immersion sensor. Attached Figure Description

[0015] Figure 1 A schematic diagram of a coal mine well water inflow measurement device;

[0016] Figure 2 A schematic diagram of the base in a coal mine well water inflow measuring device;

[0017] Figure 3 A schematic diagram of the lead screw in a coal mine well water inflow measuring device;

[0018] Figure 4 This is a schematic diagram of the fixed base in a coal mine water inflow measurement device.

[0019] In the diagram: 1. Workbench; 101. Roller; 2. Base; 201. Socket; 202. Limiting plate; 2021. First limiting groove; 3. Rewinding wheel; 301. Bracket; 302. First turntable; 4. Lead screw; 401. Second turntable; 5. Movable block; 501. Outer plate; 502. Guide wheel; 503. First slider; 504. Cylinder; 6. Fixed seat; 601. Pressure block; 6011. Second slider; 6012. Top plate; 602. Second limiting groove; 603. Threaded column; 6031. Third turntable; 604. Collar; 7. Rope; 8. Water immersion sensor. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4In this utility model, a coal mine well water inflow measuring device includes a workbench 1 and a movable block 5. Rollers 101 are provided under the workbench 1, and a base 2 is installed on the top of the workbench 1. The base 2 is a hollow cuboid structure with an open top. A lead screw 4 is provided inside the base 2. A socket 201 and a bracket 301 are respectively provided at both ends of the base 2. An extension plate 501 is provided on one side of the movable block 5. The lower end of the movable block 5 is threadedly connected to the lead screw 4. A cylinder 504 is provided at the upper end of the movable block 5. A fixed seat 6 is provided above the cylinder 504. A pressure block 601 is provided inside the fixed seat 6. A guide wheel 502 is provided at one end of the extension plate 501. A water immersion sensor 8 is provided inside the socket 201. A winding wheel 3 is provided at the upper end of the bracket 301. A rope 7 is provided inside the winding wheel 3. The surface of the rope 7 is provided with scale lines.

[0024] Example 1: Please refer to Figure 1-4 In this embodiment of the utility model, a coal mine well water inflow measuring device is provided. One end of the rope 7 passes between the pressure block 601 and the cylinder 504, then wraps around the guide wheel 502, and finally connects to the water immersion sensor 8. A first turntable 302 is provided on the side of the winding wheel 3, and the first turntable 302 is connected to the shaft of the winding wheel 3.

[0025] Both sides of the base 2 are provided with limit plates 202, and the sides of the two limit plates 202 are provided with first limit grooves 2021. The lower end of the movable block 5 is provided with a first slider 503, which is installed inside the first limit groove 2021. One end of the lead screw 4 is provided with a second turntable 401.

[0026] The fixed base 6 has an inverted U-shaped structure. The fixed base 6 is installed on the movable block 5. The cylinder 504 is fixed on the movable block 5. The two sides of the pressure block 601 are provided with second sliders 6011. The upper ends of the two second sliders 6011 are connected by the top plate 6012. The inner wall of the fixed base 6 is provided with a second limiting groove 602. The second sliders 6011 are installed inside the second limiting groove 602. The fixed base 6 is provided with a collar 604. The collar 604 is provided with a threaded post 603. The threaded post 603 is threadedly connected to the collar 604. The upper end of the threaded post 603 is provided with a third turntable 6031. The lower end of the threaded post 603 passes through the collar 604 and is connected to the bearing of the top plate 6012.

[0027] The workbench 1 is moved to the side of the coal mine water well using roller 101. At this time, the water immersion sensor 8 faces the wellhead, the pressure block 601 and cylinder 504 are in a closed state close to each other, and the winding wheel 3 is always in a rotatable state. First, the water immersion sensor 8 is removed from the socket 201. Then, the second turntable 401 is rotated to move the movable block 5 along the screw 4 until the water immersion sensor 8 is close to the center of the wellhead. Then, the third turntable 6031 is rotated to move the pressure block 601 away from the cylinder 504. Subsequently, the first turntable 302 is rotated to lower the water immersion sensor 8 into the coal mine water well. When the water immersion sensor 8 comes into contact with the well water and triggers an alarm, the third turntable 6031 is rotated until the pressure block 601 and cylinder 504 are in a closed state. Personnel record the water level height in the well by the release length of rope 7, denoted as h1. Finally, personnel rotate the third turntable 6031 until the pressure block 601 and cylinder 504 are separated, and then rotate the first turntable 302 again to bring the water immersion sensor 8 back above the wellhead. After a set time t, the water immersion sensor 8 is lowered again until it contacts the well water surface and triggers an alarm. Personnel record the water level height in the well by the release length of rope 7 again, denoted as h2. (h1-h2) / t gives the change in the water level height in the coal mine well per unit time, denoted as h3. Multiplying h3 by the diameter of the coal mine wellhead gives the volume of water flowing into the coal mine well per unit time, thus obtaining the water flow rate of the coal mine well per unit time.

[0028] The movable block 5 moves the water immersion sensor 8 to a position near the center of the well opening, thus keeping the water immersion sensor 8 away from the inner wall of the well and preventing it from colliding with the inner wall. This improves the service life of the water immersion sensor 8. At the same time, personnel can move the movable block 5 by rotating the second turntable 401 to rotate the lead screw 4, allowing personnel to stay away from the well opening during measurement operations and improving the safety of the measurement operation.

[0029] The working principle of this utility model is as follows: after moving the workbench 1 to the side of the coal mine water well, the water immersion sensor 8 is moved to the upper part of the wellhead by rotating the second turntable 401. Then, the water immersion sensor 8 is moved up and down by rotating the first turntable 302, thereby realizing the measurement of the water inflow of the coal mine water well. At the same time, it avoids the water immersion sensor 8 from colliding with the inner wall of the water well, thus improving the service life of the water immersion sensor 8.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coal mine well water inflow measurement device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a base (2) and a movable block (5) above it. The base (2) is a hollow cuboid structure with an open top. The base (2) is provided with a drive mechanism for moving the movable block (5). The base (2) is provided with a socket (201) and a bracket (301) at both ends. The movable block (5) is provided with an extension plate (501) on one side. The upper end of the movable block (5) is provided with a cylinder (504). The upper part of the cylinder (504) is provided with a fixed seat (6). The fixed seat (6) is provided with a pressure block (601) inside. The extension plate (501) is provided with a guide wheel (502) at one end. The socket (201) is provided with a water immersion sensor (8) inside. The upper end of the bracket (301) is provided with a winding wheel (3). The winding wheel (3) is provided with a rope (7) inside.

2. The coal mine well water inflow measuring device according to claim 1, characterized in that: One end of the rope (7) passes between the pressure block (601) and the cylinder (504), then wraps around the guide wheel (502), and finally connects to the water immersion sensor (8). A first turntable (302) is provided on the side of the winding wheel (3), and the first turntable (302) is connected to the shaft of the winding wheel (3).

3. The coal mine well water inflow measuring device according to claim 1, characterized in that: The base (2) is provided with limit plates (202) on both sides. The two limit plates (202) are provided with first limit grooves (2021) on their sides. The lower end of the movable block (5) is provided with a first slider (503). The first slider (503) is installed inside the first limit groove (2021). The driving mechanism is a lead screw (4). The lower end of the movable block (5) is threadedly connected to the lead screw (4). One end of the lead screw (4) is provided with a second turntable (401).

4. The coal mine well water inflow measuring device according to claim 1, characterized in that: The fixed seat (6) has an inverted U-shaped structure. The fixed seat (6) is installed on the movable block (5). The cylinder (504) is fixed on the movable block (5). The two sides of the pressure block (601) are provided with second sliders (6011). The upper ends of the two second sliders (6011) are connected by the top plate (6012).

5. The coal mine well water inflow measuring device according to claim 4, characterized in that: The inner wall of the fixed seat (6) is provided with a second limiting groove (602), the second slider (6011) is installed inside the second limiting groove (602), and a collar (604) is provided on the top of the fixed seat (6).

6. The coal mine well water inflow measuring device according to claim 5, characterized in that: The collar (604) is provided with a threaded post (603) inside. The threaded post (603) is threadedly connected to the collar (604). A third turntable (6031) is provided at the upper end of the threaded post (603). The lower end of the threaded post (603) passes through the collar (604) and is connected to the top plate (6012).

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