A waterproof monitoring and sampling device

Abstract

This utility model provides a waterproof monitoring and sampling device, relating to the field of waterproof sampling technology in coal mines. It includes a detection device and a water inlet pipe. An elastic hose is installed inside the water inlet on the outer wall of the water inlet pipe. Several expansion mechanisms are arranged in a ring array around the water inlet of the elastic hose, about the central axis of the water inlet pipe. Each expansion mechanism includes a mounting base fixedly installed on the outer wall of the water inlet pipe. A lower arm is hinged to the surface of the mounting base. The swing end of the lower arm faces the elastic hose and is hinged to a swing arm fixedly connected to the outer wall of the water inlet of the elastic hose. Based on the actual size of the drainage port, the expansion mechanisms achieve elastic expansion of the water inlet of the elastic hose, ensuring that the water inlet of the elastic hose can smoothly cover the drainage port, facilitating its application to drainage ports of different sizes and ensuring the accuracy of the detection.

Description

Technical Field

[0001] This utility model relates to the field of waterproof sampling technology in coal mines, and in particular to a waterproof monitoring and sampling device. Background Technology

[0002] Coal mine waterproofing monitoring plays a crucial role in coal mine production, management, and safety control. Therefore, a coal mine waterproofing monitoring sampling device, with publication number CN221404910U, is proposed. First, the first pin is pulled out, and the connection position of the limit bolt and limit hole is changed so that the connection length of the inner push rod and outer push tube conforms to the working environment. The device is then dragged by hand with the pull ring to the sampling location. After reaching the sampling location, the outer push tube is rotated to insert the ground nail into the soil. Once the position is fixed, the flange is connected to the drainage port, and the valve is opened to allow groundwater to flow into the monitor. The water discharge data from the drainage port is detected and recorded. A portion of the groundwater is collected in a test tube for hydrochemical analysis to determine the source of the groundwater at the discharge point.

[0003] However, the size of rigid flanges is fixed, while the size of the drainage opening in coal mining varies depending on actual needs and geological conditions. If the diameter of the drainage opening does not match the flange, a tight connection may not be possible, leading to water leakage at the connection and affecting the accuracy of monitoring and sampling. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a waterproof monitoring and sampling device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a waterproof monitoring and sampling device, comprising a detection device and a water inlet pipe, wherein an elastic hose is provided inside the water inlet on the outer wall of the water inlet pipe, and a plurality of expansion mechanisms are arranged in a ring array around the water inlet of the elastic hose about the central axis of the water inlet pipe. The expansion mechanism includes a mounting base fixedly installed on the outer wall of the water inlet pipe, and a lower arm is hinged to the surface of the mounting base. The swing end of the lower arm is set towards the elastic hose and a swing arm fixedly connected to the outer wall of the water inlet of the elastic hose is hinged to the swing end of the lower arm. A winch is fixedly installed on the swing end of one of the swing arms, and the twisted wire inside the winch surrounds the water inlet of the elastic hose and passes through the swing ends of the other swing arms.

[0006] Preferably, a gear is rotatably connected through the surface of the mounting base, one end of the gear is coaxial with and fixedly connected to the hinge of the lower arm and the mounting base, and a rack is inserted into the surface of the mounting base to mesh with the gear.

[0007] Preferably, one end of each of the racks is fixedly fitted with a rotating ring that is sleeved on the surface of the water inlet pipe, and one end of the rotating ring is rotatably connected to a nut that is threadedly connected to the surface of the water inlet pipe.

[0008] Preferably, the lower arm has a left arm and a right arm hinged at both ends on the side facing away from the water inlet pipe, and an upper arm is provided between the left arm and the right arm. The two ends of the upper arm are respectively hinged to the ends of the left arm and the right arm away from the lower arm.

[0009] Preferably, the lower arm, upper arm, left arm, and right arm are arranged in a parallelogram shape.

[0010] Preferably, the swing end of the left arm is hinged to an auxiliary arm, and the end of the auxiliary arm away from the left arm is magnetically attracted to the surface of the water inlet pipe. The surface of the water inlet pipe is threaded with an internally threaded push ring for abutting the magnetically attracted end of the auxiliary arm.

[0011] Preferably, the swing end of the right arm is hinged to an extension arm, and the end of the extension arm away from the right arm is hinged to a slider that is inserted into the side of the swing arm opposite to the elastic hose.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, according to the actual size of the drainage port, several expansion mechanisms are used to achieve elastic expansion of the inlet of the elastic hose, ensuring that the inlet of the elastic hose can smoothly cover the drainage port, making it suitable for drainage ports of different sizes and ensuring the accuracy of the detection.

[0013] 2. In this utility model, the internal threaded push ring moves on the surface of the water inlet pipe by rotating, and the internal threaded push ring pushes the left end of the auxiliary arm to move on the surface of the water inlet pipe. The auxiliary arm pushes the upper arm to move synchronously with the assistance of the left and right arms. When the upper arm swings, it pushes the extension arm to move to the right. Under the insertion action of the slider and the swing arm, the swing arm is pushed to swing relative to the lower arm until the swing arm is horizontally distributed with the central axis of the drain port. This makes it easier to increase the contact area between the inner wall of the water inlet of the elastic hose and the outer wall of the drain port. By increasing the contact area, the friction and sealing are increased, ensuring a stable connection. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a waterproof monitoring and sampling device; Figure 2 This utility model provides a structural schematic diagram of the water inlet pipe of a waterproof monitoring and sampling device; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0015] Legend: 1. Detection device; 2. Water inlet pipe; 3. Flexible hose; 4. Internal threaded push ring; 5. Upper arm; 6. Lower arm; 7. Left arm; 8. Right arm; 9. Extension arm; 10. Auxiliary arm; 11. Swing arm; 12. Slider; 13. Winch; 14. Rack; 15. Gear; 16. Nut; 17. Rotating ring; 18. Mounting base. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] like Figures 1-4 As shown, a waterproof monitoring and sampling device includes a detection device 1 and a water inlet pipe 2. The structure and working principle of the detection device 1 refer to the prior art mentioned in the background section to achieve monitoring and sampling. An elastic hose 3 is installed inside the water inlet on the outer wall of the water inlet pipe 2. Several expansion mechanisms are arranged in a ring array around the water inlet of the elastic hose 3 about the central axis of the water inlet pipe 2. According to the actual size of the drainage port, the expansion mechanisms are used to elastically expand the water inlet of the elastic hose 3, ensuring that the water inlet of the elastic hose 3 can smoothly cover the drainage port. The expansion mechanism includes a mounting base 18 fixedly installed on the outer wall of the water inlet pipe 2. A lower arm 6 is hinged to the surface of the mounting base 18, such as... Figure 2 In the shown state, arm 6 is set parallel to the central axis of the inlet pipe 2. When the lower arm 6 swings, the angle with the central axis of the inlet pipe 2 changes. The swing end of the lower arm 6 is set towards the elastic hose 3, and the swing end of the lower arm 6 is hinged to a swing arm 11 fixedly connected to the outer wall of the inlet of the elastic hose 3. The swing of the lower arm 6 drives the swing arm 11 to swing. Several swing arms 11 can be used to swing away from the central axis of the inlet pipe 2, causing the inlet of the elastic hose 3 to expand elastically. A winch 13 is fixedly installed at the swing end of one of the swing arms 11. The twisted wire inside the winch 13 is wrapped around the inlet of the elastic hose 3 and passes through the swing ends of the other swing arms 11. After the inlet of the elastic hose 3 expands and covers the drain port, it is released through the twisted wire wound on the winch 13 and passes through several swing arms 11. Finally, it is re-tied to the winch 13. The winch 13 can be used to rotate and tighten the twisted wire. The tightened twisted wire enables several swing arms 11 to press tightly against the inlet of the elastic hose 3, so that the inlet of the elastic hose 3 is tightly covered by the drain port.

[0019] A gear 15 is rotatably connected through the surface of the mounting base 18. One end of the gear 15 is coaxially and fixedly connected to the hinge of the lower arm 6 and the mounting base 18. A rack 14 that meshes with the gear 15 is inserted into the surface of the mounting base 18. A rotating ring 17 that is sleeved on the surface of the water inlet pipe 2 is fixedly installed at one end of several racks 14. A nut 16 that is threadedly connected to the surface of the water inlet pipe 2 is rotatably connected to one end of the rotating ring 17. By rotating the nut 16, the nut 16 rotates relative to the rotating ring 17 and moves along the surface of the water inlet pipe 2, which drives the rotating ring 17 to move synchronously. The movement of the rotating ring 17 drives the rack 14 to move, so that the corresponding gear 15 that meshes with the rack 14 drives the corresponding lower arm 6 to swing.

[0020] The lower arm 6 is hinged to the left arm 7 and the right arm 8 at both ends on the side facing away from the water inlet pipe 2. An upper arm 5 is set between the left arm 7 and the right arm 8. The two ends of the upper arm 5 are hinged to the ends of the left arm 7 and the right arm 8 away from the lower arm 6. The lower arm 6, the upper arm 5, the left arm 7 and the right arm 8 are arranged in a parallelogram to ensure that when the lower arm 6 swings, the corresponding upper arm 5, the left arm 7 and the right arm 8 will swing synchronously. To ensure that the swing arm 11 is parallel to the central axis of the drain outlet during use, an auxiliary arm 10 is hinged to the swing end of the left arm 7. The end of the auxiliary arm 10 away from the left arm 7 is magnetically attracted to the surface of the water inlet pipe 2. An internally threaded push ring 4 is threaded onto the surface of the water inlet pipe 2 to abut against the magnetically attracted end of the auxiliary arm 10. An extension arm 9 is hinged to the swing end of the right arm 8. A slider 12 is hinged to the end of the extension arm 9 away from the right arm 8 and inserted into the side of the swing arm 11 opposite to the elastic hose 3. During use, the slider moves on the surface of the water inlet pipe 2 by rotating the internally threaded push ring 4. Ring 4 pushes the left end of auxiliary arm 10 to move on the surface of inlet pipe 2. Auxiliary arm 10 pushes upper arm 5 to move synchronously with the assistance of left arm 7 and right arm 8. When upper arm 5 swings, it pushes extension arm 9 to move to the right. Under the insertion action of slider 12 and swing arm 11, it pushes swing arm 11 to swing relative to lower arm 6 until swing arm 11 is horizontally distributed with the central axis of the drain port. This facilitates increasing the contact area between the inner wall of the inlet of elastic hose 3 and the outer wall of the drain port. By increasing the contact area, friction and sealing are increased, ensuring a stable connection.

[0021] Working principle: By rotating the nut 16, the nut 16 rotates relative to the rotating ring 17 and moves along the surface of the water inlet pipe 2, which drives the rotating ring 17 to move synchronously. The movement of the rotating ring 17 drives the rack 14 to move, which enables the corresponding gear 15, which meshes with the rack 14, to drive the corresponding lower arm 6 to swing. The swing of the lower arm 6 drives the swing arm 11 to swing. The swing arm 11 swings away from the central axis of the water inlet pipe 2, which causes the inlet of the elastic hose 3 to expand elastically, so that the elastic hose 3 can fit over the outer wall of the drain outlet. The winch 13 rotates and winds up the strand to tighten it. The tightened strand allows the swing arm 11 to press the inlet of the elastic hose 3 tightly, so that the inlet of the elastic hose 3 can fit over the drain outlet tightly.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A waterproof monitoring sampling device, comprising a detection device (1) and a water inlet pipe (2), characterized in that: An elastic hose (3) is provided inside the water inlet on the outer wall of the water inlet pipe (2). Several expansion mechanisms are arranged in a ring array around the water inlet of the elastic hose (3) about the central axis of the water inlet pipe (2). The expansion mechanism includes a mounting base (18) fixedly installed on the outer wall of the water inlet pipe (2). A lower arm (6) is hinged to the surface of the mounting base (18). The swing end of the lower arm (6) is set towards the elastic hose (3) and the swing end of the lower arm (6) is hinged to a swing arm (11) fixedly connected to the outer wall of the water inlet of the elastic hose (3). A winch (13) is fixedly installed on the swing end of one of the swing arms (11). The twisted wire inside the winch (13) surrounds the water inlet of the elastic hose (3) and passes through the swing ends of the other swing arms (11).

2. The waterproof monitoring sampling device according to claim 1, characterized in that; A gear (15) is rotatably connected through the surface of the mounting base (18). One end of the gear (15) is coaxially and fixedly connected to the hinge of the lower arm (6) and the mounting base (18). A rack (14) that meshes with the gear (15) is inserted into the surface of the mounting base (18).

3. The waterproof monitoring sampling device according to claim 2, characterized in that; A rotating ring (17) is fixedly installed on one end of several of the racks (14) and sleeved on the surface of the water inlet pipe (2). A nut (16) is rotatably connected to one end of the rotating ring (17) and threadedly connected to the surface of the water inlet pipe (2).

4. The waterproof monitoring sampling device of claim 1, wherein: The lower arm (6) is hinged to the left arm (7) and the right arm (8) at both ends on the side facing away from the water inlet pipe (2). An upper arm (5) is provided between the left arm (7) and the right arm (8). The two ends of the upper arm (5) are hinged to the ends of the left arm (7) and the right arm (8) away from the lower arm (6).

5. The waterproof monitoring sampling device of claim 4, wherein: The lower arm (6), upper arm (5), left arm (7) and right arm (8) are arranged in a parallelogram shape.

6. The waterproof monitoring sampling device of claim 4, wherein: The left arm (7) is hinged to an auxiliary arm (10). The end of the auxiliary arm (10) away from the left arm (7) is magnetically attracted to the surface of the water inlet pipe (2). The surface of the water inlet pipe (2) is threaded with an internally threaded push ring (4) for abutting the magnetically attracted end of the auxiliary arm (10).

7. The waterproof monitoring sampling device of claim 4, wherein: The right arm (8) is hinged to an extension arm (9) at its swing end. The end of the extension arm (9) away from the right arm (8) is hinged to a slider (12) that is inserted into the side of the swing arm (11) facing away from the elastic hose (3).

Images