Probe for detecting coal mine hose pipeline

Abstract

The utility model discloses a probe for coal mine hose pipeline detection, and relates to the technical field of coal mine safety detection, the probe for coal mine hose pipeline detection comprises a connecting pipe body, the top end of the connecting pipe body is fixedly connected with a fixing plate through a first sealing ring, the top end of the fixing plate is fixedly connected with a top end fixing port, and the top end of the fixing plate is fixedly connected with a second sealing ring. A first telescopic rod is slidably connected to the inner wall of the top end fixing opening, a top plate is fixedly connected to the top end of the first telescopic rod, a sealing opening is fixedly connected to the top end of the top plate, a connecting opening is fixedly connected to the bottom end of the connecting pipe body, and a fixing pipe body is fixedly connected to the outer wall of the connecting opening through a sealing layer. And push rods are slidably connected to the inner walls of the fixed pipe body and the connecting pipe body. The probe for detecting the coal mine hose pipeline can automatically adapt to the pipe diameter change of different hoses, the detection blind area rate is reduced, the damage of a traditional rigid probe to an aged hose is avoided, and the detection safety is improved.

Description

Probe for inspecting flexible hoses and pipes in coal mines Technical Field

[0001] This utility model relates to the field of coal mine safety detection technology, specifically a probe for detecting flexible hoses and pipelines in coal mines. Background Technology

[0002] Flexible hoses are widely used in underground coal mine fluid transportation due to their flexibility and ease of installation. However, the damp, corrosive, and mechanically vibrating environment underground can cause hidden defects such as aging of the inner wall, cracks, and localized thinning. If these defects are not detected in time, they may lead to accidents such as gas leaks and water seepage.

[0003] Traditional testing methods have the following problems: many blind spots; fixed probe size, which cannot adapt to the testing needs of hoses with different diameters, especially for curved pipes or diameter changes, resulting in a blind spot rate of over 30%; contact testing can easily damage the hose: when a rigid probe directly contacts the inner wall of the hose, it may cause the hose to break due to excessive pressure, especially for aging and fragile hoses, which poses a testing risk. Summary of the Invention

[0004] This invention provides a probe for detecting flexible hoses and pipes in coal mines. It can automatically adapt to different hose diameter changes, reduce the detection blind zone rate, and avoid damage to aging hoses caused by traditional rigid probes, thereby improving detection safety.

[0005] This utility model provides the following technical solution: a probe for detecting flexible pipes in coal mines, including a connecting pipe body, a fixing plate fixedly connected to the top of the connecting pipe body by a sealing ring, a top fixing port fixedly connected to the top of the fixing plate, a telescopic rod slidably connected to the inner wall of the top fixing port, a top plate fixedly connected to the top of the telescopic rod, and a sealing opening fixedly connected to the top of the top plate.

[0006] The bottom end of the connecting tube is fixedly connected to a connecting port, and the outer wall of the connecting port is fixedly connected to a fixed tube through a sealing layer. Both the fixed tube and the inner wall of the connecting tube are slidably connected to a push rod, and the top end of the push rod is fixedly connected to a telescopic rod.

[0007] As a preferred technical solution of this utility model, the bottom end of the fixed tube is fixedly connected to a limiting slide tube, and a rotating knob is rotatably connected to one side of the outer wall of the fixed tube. The outer wall of the limiting slide tube is provided with multiple sliding grooves, and the inner wall of each of the multiple sliding grooves is slidably connected with an extension block.

[0008] As a preferred embodiment of this utility model, the bottom end of the limiting slide tube is fixedly connected to a limiting block, and the limiting block is located at the bottom end of the extension block.

[0009] As a preferred embodiment of this utility model, a probe is slidably connected to the inner wall of the limiting slide tube, and a push rod is fixedly connected to the top of the probe.

[0010] As a preferred embodiment of this utility model, the outer wall of the expansion block is fixedly connected with a plurality of telescopic rods 2, which are arranged in pairs, and the number of the plurality of telescopic rods 2 is eight.

[0011] As a preferred embodiment of this utility model, the outer wall of the extension block is fixedly connected to a spring rod at the center of the multiple sets of telescopic rods.

[0012] As a preferred embodiment of this utility model, a stop plate is fixedly connected to one end of the plurality of spring rods away from the limiting slide tube, and one side of each of the plurality of stop plates is fixedly connected to the plurality of telescopic rods.

[0013] Compared with the prior art, this utility model provides a probe for detecting flexible hoses and pipelines in coal mines, which has the following advantages:

[0014] 1. This probe for inspecting flexible hoses and pipes in coal mines features an expansion block and elastic stop plate design, allowing it to automatically adapt to different hose diameters, reducing blind zone rate. It is particularly effective for inspecting pipes with changing diameters and bends.

[0015] 2. This probe for testing flexible hoses and pipes in coal mines features a flexible rubber abutment and elastic support from a telescopic rod, which avoids damage to aging hoses caused by traditional rigid probes, thus improving testing safety. The sealing ring and sealing layer adopt a double sealing structure, which can work stably in humid and dusty environments and adapt to the complex working conditions in underground coal mines. Attached Figure Description

[0016] Figure 1 is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 is a multi-angle three-dimensional structural schematic diagram of this utility model;

[0018] Figure 3 is a frontal cross-sectional view of the present invention.

[0019] Figure 4 is a schematic diagram of the push rod connection structure of this utility model.

[0020] In the diagram: 1. Connecting pipe body; 2. Fixing plate; 3. Top fixing port; 4. Telescopic rod one; 5. Top plate; 6. Sealing end; 7. Sealing ring one; 8. Connecting port; 9. Fixing pipe body; 10. Rotating knob; 11. Push rod; 12. Sealing layer; 13. Limiting slide tube; 14. Slide groove; 15. Limiting block; 16. Probe; 17. Extension block; 18. Telescopic rod two; 19. Spring rod; 20. Support plate. Detailed Implementation

[0021] 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.

[0022] Please refer to Figures 1-4. This utility model discloses a probe for testing flexible pipes in coal mines, including a connecting pipe body 1. The top end of the connecting pipe body 1 is fixedly connected to a fixing plate 2 via a sealing ring 7. The top end of the fixing plate 2 is fixedly connected to a top fixing port 3. The inner wall of the top fixing port 3 is slidably connected to a telescopic rod 4. The top end of the telescopic rod 4 is fixedly connected to a top plate 5. The top end of the top plate 5 is fixedly connected to a sealing port 6.

[0023] A connecting port 8 is fixedly connected to the bottom end of the connecting pipe 1. A fixed pipe 9 is fixedly connected to the outer wall of the connecting port 8 through a sealing layer 12. A push rod 11 is slidably connected to both the fixed pipe 9 and the inner wall of the connecting pipe 1. The top end of the push rod 11 is fixedly connected to the telescopic rod 4.

[0024] Specifically, the top of the connecting tube 1 is sealed to the fixing plate 2 via a sealing ring 7 to prevent dust and moisture from entering the internal transmission structure during the testing process. The top fixing port 3 on the fixing plate 2 is slidably engaged with the telescopic rod 4. An external drive device pushes the telescopic rod 4 up and down, thereby driving the push rod 11 and the probe 16 to move synchronously, realizing the axial movement of the probe 16 within the flexible tube. The connecting port 8 at the bottom of the connecting tube 1 is fixed to the fixing tube 9 via a sealing layer 12 to ensure that gas or liquid cannot leak from the interface. The sealing layer 12 is made of silicone rubber, which has good elasticity and corrosion resistance, and is suitable for the humid environment of underground coal mines.

[0025] In this embodiment, the bottom end of the fixed tube 9 is fixedly connected to the limiting slide tube 13, and a rotating knob 10 is rotatably connected to one side of the outer wall of the fixed tube 9. The outer wall of the limiting slide tube 13 is provided with multiple slide grooves 14, and the inner walls of the multiple slide grooves 14 are slidably connected with extension blocks 17.

[0026] Specifically, multiple grooves 14 are opened on the outer wall of the limiting slide tube 13 at the bottom of the fixed tube body 9. The extension block 17 is slidably connected to the groove 14 through the slider. The rotating knob 10 is threadedly connected to the fixed tube body 9. When the rotating knob 10 is rotated, its end is fixed to the fixed tube body 9 to prevent movement. The abutment plate 20 is made of flexible rubber material with anti-slip texture on the surface, which can fit tightly against the inner wall of the hose and avoid damage to the hose.

[0027] In this embodiment, the bottom end of the limiting slide tube 13 is fixedly connected to the limiting block 15, and the limiting block 15 is located at the bottom end of the extension block 17.

[0028] Specifically, by setting a limit block 15, the expansion block 17 is prevented from detaching from the device.

[0029] In this embodiment, a probe 16 is slidably connected to the inner wall of the limiting slide tube 13, and a push rod 11 is fixedly connected to the top of the probe 16.

[0030] Specifically, the probe 16 on the inner wall of the limiting slide tube 13 is fixed to the push rod 11 by bolts and can move up and down with the push rod 11.

[0031] In this embodiment, the outer wall of the extension block 17 is fixedly connected with a plurality of telescopic rods 18, which are arranged in pairs, and the total number of telescopic rods 18 is eight.

[0032] Specifically, each extension block 17 has two sets of telescopic rods 18 and a central spring rod 19 on its outer wall. The telescopic rods 18 are made of stainless steel and have a built-in compression spring. The elastic coefficient of the spring rod 19 is customized according to the material of the hose to ensure that the abutment plate 20 generates appropriate pressure when it contacts the hose, which ensures the stability of the detection and avoids excessive compression of the hose.

[0033] In this embodiment, a spring rod 19 is fixedly connected to the outer wall of the extension block 17 at the center position of the multiple sets of telescopic rods 18.

[0034] Specifically, by setting the spring rod 19, the device can protect the hose.

[0035] In this embodiment, a stop plate 20 is fixedly connected to one end of a plurality of spring rods 19 away from the limiting slide tube 13, and one side of each of the plurality of stop plates 20 is fixedly connected to a plurality of telescopic rods 18.

[0036] Specifically, by setting the abutment plate 20, the device can be supported on the inner wall of the hose.

[0037] The working principle and usage procedure of this utility model are as follows: In use, turn knob 10 to its loosest position, with extension block 17 located at the innermost side of the limiting slide tube 13, and the abutment plate 20 retracted to its minimum diameter. Align probe 16 with the hose port and slowly insert it to the detection start position. Rotate knob 10 clockwise; its end pushes extension block 17 radially outward along slide groove 14, causing telescopic rod 18 and spring rod 19 to extend accordingly until the abutment plate 20 adheres to the inner wall of the hose. At this time, spring rod 19 remains slightly compressed, providing adaptive support force. Activate the external drive device, which, through telescopic rod 4, drives push rod 11 and probe 16 to move axially along the hose at a constant speed. When probe 16 enters the curved pipe, the abutment 20, under the reaction force of the inner wall of the hose, adapts to the bending angle through the elastic deformation of telescopic rod 18 and spring rod 19, ensuring that probe 16 always moves along the pipe axis and avoids jamming. After reaching the detection endpoint, rotate knob 10 counterclockwise, and extension block 17 retracts under the elastic force of spring rod 19, reducing the diameter of abutment 20 and facilitating the removal of probe 16 from the hose. Turn off the drive device, export the detection data, and analyze it.

[0038] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A probe for detecting flexible hoses and pipes in coal mines, comprising a connecting pipe body (1), characterized in that: The top end of the connecting tube (1) is fixedly connected to a fixing plate (2) by a sealing ring (7). The top end of the fixing plate (2) is fixedly connected to a top fixing port (3). The inner wall of the top fixing port (3) is slidably connected to a telescopic rod (4). The top end of the telescopic rod (4) is fixedly connected to a top plate (5). The top end of the top plate (5) is fixedly connected to a sealing opening (6). The bottom end of the connecting tube (1) is fixedly connected to a connecting port (8). The outer wall of the connecting port (8) is fixedly connected to a fixing tube (9) by a sealing layer (12). The inner wall of both the fixing tube (9) and the connecting tube (1) is slidably connected to a push rod (11). The top end of the push rod (11) is fixedly connected to the telescopic rod (4).

2. The probe for detecting flexible hoses and pipelines in coal mines according to claim 1, characterized in that: The bottom end of the fixed tube (9) is fixedly connected to a limiting slide tube (13), and a rotating knob (10) is rotatably connected to one side of the outer wall of the fixed tube (9). The outer wall of the limiting slide tube (13) is provided with multiple sliding grooves (14), and the inner walls of the multiple sliding grooves (14) are slidably connected with extension blocks (17).

3. The probe for detecting flexible hoses and pipelines in coal mines according to claim 2, characterized in that: The bottom end of the limiting slide tube (13) is fixedly connected to a limiting block (15), and the limiting block (15) is located at the bottom end of the extension block (17).

4. The probe for detecting flexible hoses and pipelines in coal mines according to claim 2, characterized in that: The inner wall of the limiting slide tube (13) is slidably connected to a probe (16), and the top end of the probe (16) is fixedly connected to a push rod (11).

5. The probe for detecting flexible hoses and pipelines in coal mines according to claim 2, characterized in that: The outer wall of the extension block (17) is fixedly connected with a plurality of telescopic rods (18), which are arranged in pairs, and the number of the plurality of telescopic rods (18) is eight.

6. The probe for detecting flexible hoses and pipelines in coal mines according to claim 2, characterized in that: The outer wall of the extension block (17) is fixedly connected to a spring rod (19) at the center of the multiple sets of telescopic rods (18).

7. The probe for detecting flexible hoses and pipelines in coal mines according to claim 6, characterized in that: One end of each of the multiple spring rods (19) away from the limiting slide tube (13) is fixedly connected to a stop plate (20), and one side of each of the multiple stop plates (20) is fixedly connected to multiple telescopic rods (18).

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