Test mechanism for seepage water pressure of coal mine cylinder

Abstract

The invention discloses a coal mine shaft seepage water pressure testing mechanism, and relates to the technical field of coal mine shaft measurement, and the coal mine shaft seepage water pressure testing mechanism comprises a rectangular frame, a lifting mechanism and a drilling mechanism; a rectangular frame; the lifting mechanism is arranged on the side face of the rectangular frame; the drilling mechanism is arranged on the side face of the lifting mechanism; the drilling mechanism comprises a drilling cylinder arranged on the lifting mechanism, a sharp-corner pad is fixedly connected to the side end of the drilling cylinder, a vertical plate is assembled in the drilling cylinder in an inserted mode, a pair of protruding rods is fixedly connected to the side, close to the sharp-corner pad, of the vertical plate, semicircular discs are fixedly connected to the side ends of the two protruding rods, and the two semicircular discs are arranged at the side end opening of the drilling cylinder. The other side of the vertical plate is rotationally connected with a guide rod, the middle of the guide rod is fixedly connected with a limiting disc, and the limiting disc is in threaded connection with the inner wall of the drilling barrel, so that an operator can conveniently measure the coal mine shaft seepage water pressure, and the water pressure gauge is wrapped and protected by the drilling barrel and can be prevented from being collided and damaged by external objects; the multi-point seepage water pressure test on the inner wall of the coal mine shaft is facilitated.

Description

Technical Field

[0001] This invention relates to the technical field of coal mine shaft measurement, and more specifically, to a testing mechanism for the permeable water pressure in coal mine shafts. Background Technology

[0002] A shaft is a vertical or inclined engineering structure excavated from the surface to the ore body in underground mining or construction. Vertical shafts are called vertical shafts, and inclined shafts are called inclined shafts. Shafts are the main entrances and exits from the mine to the surface, and are crucial for hoisting and transporting coal (or gangue), personnel, materials, and equipment, as well as for ventilation and drainage during mine production. Coal mine shafts, also known as wellbores or coal mine shafts, are an important engineering structure in underground coal mining. They serve as passageways connecting the surface and the underground coal mine, providing functions such as facilitating the entry and exit of personnel, materials, and equipment, ventilation, drainage, and coal transportation. To ensure the safety of coal mine shafts, it is necessary to regularly measure the seepage water pressure. Testing the seepage water pressure of coal mine shafts is to assess the seepage water pressure status of the shafts in order to develop corresponding prevention and control measures to prevent water seepage.

[0003] In related technologies, the method for testing the seepage pressure of coal mine shafts involves selecting a test point based on the shaft's condition, typically at locations showing signs of seepage or potential seepage. A small hole is then drilled near the test point for pressure testing. This is usually done using a drilling rig, followed by installing a manometer within the borehole to ensure accurate measurement of seepage pressure. However, the inventors believe that pre-drilling a hole in the inner wall of the coal mine shaft before installing the manometer is slow, and the manometer, placed directly inside the hole, is susceptible to damage due to the pressure from the inner wall. To address these issues, we provide a testing mechanism for the seepage pressure of coal mine shafts.

[0004] The information disclosed above in this background section is only for enhancing the understanding of the background section of this invention, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] To address the problems mentioned in the background art, such as the slow speed of installing a water pressure gauge by first drilling a hole in the inner wall of a coal mine shaft and then placing the water pressure gauge directly in the hole, which makes it susceptible to damage due to the inner wall's pressure, this invention provides a testing mechanism for permeable water pressure in coal mine shafts.

[0006] The present invention provides a testing mechanism for the permeability pressure of coal mine shafts, which adopts the following technical solution:

[0007] A testing mechanism for water pressure in coal mine shafts includes a rectangular frame, a lifting mechanism, and a drilling mechanism. The rectangular frame is used to contact the inner wall of the coal mine shaft. The lifting mechanism is located on the side of the rectangular frame and is used for lifting the drilling mechanism. The drilling mechanism is located on the side of the lifting mechanism and is used to drill holes in the inner wall of the coal mine shaft. The drilling mechanism includes a drill cylinder mounted on the lifting mechanism. A pointed corner pad is fixedly connected to the side end of the drill cylinder. A vertical plate is inserted into the inside of the drill cylinder. A pair of protruding rods are fixedly connected to the side of the vertical plate near the pointed corner pad. A semi-circular disk is fixedly connected to the side end of each of the two protruding rods, and both semi-circular disks are arranged at the side ports of the drill cylinder. A guide rod is rotatably connected to the other side of the vertical plate, and the side end of the guide rod is arranged outside the drill cylinder. A limiting disk is fixedly connected to the middle of the guide rod, and the limiting disk is threadedly connected to the inner wall of the drill cylinder. The lifting mechanism also includes a driving mechanism for rotating the drill cylinder.

[0008] By adopting the above technical solution, it is convenient for operators to measure the seepage water pressure in coal mine shafts. Moreover, the water pressure gauge is protected by being encased in the drill tube, which can prevent the water pressure gauge from being damaged by external objects. At the same time, after one drill tube is assembled, the entire rectangular frame can be quickly disassembled for the assembly of a second drill tube, which is conducive to multi-point seepage water pressure testing on the inner wall of the coal mine shaft.

[0009] Preferably, triangular pads are fixed to the sides of both semicircular disks, and the triangular pads are in contact with the pointed corner pads.

[0010] By adopting the above technical solution, the pointed corner pad can be limited by two triangular pads, which can prevent the triangular pad from deforming during operation, and can also assist the triangular pad in making holes.

[0011] Preferably, the drill barrel is further provided with a pair of sliding grooves for positioning the upright plate in the drill barrel.

[0012] By adopting the above technical solution, the vertical plate can be positioned to ensure that when the vertical plate is inserted into the drill barrel, the two semi-circular disks can be accurately inserted into the side port of the drill barrel, thereby increasing the assembly speed of the drill barrel.

[0013] Preferably, the drill barrel has a threaded groove on its outside for contacting the inner wall of the coal mine shaft.

[0014] By adopting the above technical solution and creating threaded grooves, the stability of the contact between the drill barrel and the inner wall can be increased when the drill barrel is driven into the inner wall.

[0015] Preferably, the lifting mechanism includes multiple sliding rods fixedly mounted on the side of the rectangular frame, and a movable plate is slidably connected between the middle parts of each sliding rod.

[0016] By adopting the above technical solution, the moving plate is pushed so that it slides on each slide rod, thereby completing the operation of the drill barrel penetrating the inner wall. Moreover, when the moving plate is lifted, the moving plate can be separated from the drill barrel.

[0017] Preferably, the driving mechanism includes a rotating sleeve rotatably connected to the center of the side of the moving plate. Multiple retaining pads are equidistantly fixed to the inner wall of the rotating sleeve. Multiple limiting grooves are opened on the outer side of the drill barrel. The drill barrel is inserted into the rotating sleeve, and each retaining pad is inserted into its corresponding limiting groove. A driven gear is fixedly provided on the outer side of the rotating sleeve. A driving gear is rotatably connected to the side of the moving plate, and the driving gear meshes with the driven gear. A motor for driving the driving gear is also mounted on the side of the moving plate.

[0018] By adopting the above technical solution, the rotation of the drill barrel can be completed, and the assembly of the drill barrel is also convenient.

[0019] Preferably, a pair of retaining sleeves are fixedly connected to the side of the moving plate relative to the position of the drill barrel, and both retaining sleeves are slidably connected to a stop bar for contacting the side end of the drill barrel.

[0020] By adopting the above technical solution, before using the drill barrel, the stop bars can be pushed so that the two stop bars are arranged on the side of the drill barrel. This can prevent the drill barrel from suddenly slipping and accidentally injuring the user when it is working.

[0021] Preferably, the rectangular frame is provided with an airbag on its side for the rectangular frame to contact the inner wall of the coal mine shaft.

[0022] By adopting the above technical solution, when the rectangular frame contacts the uneven inner wall, the airbag can contact the inner wall and adapt to the uneven inner wall, thereby ensuring the stability of the rectangular frame in contact with the inner wall.

[0023] Preferably, a rubber gasket is also provided on the back of the rectangular frame to protect the rectangular frame.

[0024] By adopting the above technical solution and setting rubber gaskets, the stability of the rectangular frame in contact with the inner wall can be increased.

[0025] In summary, the present invention has the following beneficial technical effects:

[0026] 1. The drill barrel is rotated by the drive mechanism. Then, the operator pushes the lifting mechanism to plunge the rotating drill barrel into the inner wall for water pressure testing. The drive mechanism is then turned off, and the guide rod is rotated to make the limiting disc rotate and move inside the drill barrel. This allows the guide rod to pull the two semi-circular discs to move and separate from the pointed pads, thus allowing water to seep into the drill barrel. Once the limiting discs are completely separated from the threaded section of the drill barrel, the operator can directly pull the guide rod to completely separate the semi-circular discs from the drill barrel. Finally, an external water pressure gauge is inserted and installed inside the drill barrel to measure the seepage water pressure. This structural design allows operators to easily measure the seepage water pressure in coal mine shafts. The water pressure gauge is protected by the drill barrel, preventing damage from external objects. After one drill barrel is assembled, the entire rectangular frame can be quickly disassembled for the assembly of a second drill barrel, facilitating multi-point seepage water pressure testing of the inner wall of coal mine shafts.

[0027] 2. The motor drives the drive gear to rotate, which in turn drives the driven gear to rotate. The rotation of the driven gear drives the drill barrel to rotate through the rotating sleeve, thus completing the rotation operation of the drill barrel. After the drill barrel is inserted into the inner wall, the operator can lift the plate to separate the retaining pad on the rotating sleeve from the limiting groove, thereby completing the separation of the rotating sleeve and the drill barrel. Through this structural design, the rotation of the drill barrel can be completed, and the assembly of the drill barrel is also convenient.

[0028] 3. By setting up airbags, when the rectangular frame contacts the uneven inner wall, the airbags can contact the inner wall. The airbags adapt to the uneven inner wall, thereby ensuring the stability of the rectangular frame in contact with the inner wall. Setting up rubber gaskets can increase the stability of the rectangular frame in contact with the inner wall. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a test mechanism for permeable water pressure in a coal mine shaft, according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the other side of a testing mechanism for permeable water pressure in a coal mine shaft, as described in an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the driven gear and the driving gear in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the drilling mechanism in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the other side of the drilling mechanism in an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the internal structure of the drilling mechanism in an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the drill barrel structure in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the structure of the semi-circular disk, the guide rod, and the limiting disk in an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached drawings: 1. Rectangular frame; 2. Lifting mechanism; 200. Slide rod; 201. Moving plate; 202. Sleeve; 3. Drilling mechanism; 300. Drill barrel; 301. Pointed corner pad; 302. Vertical plate; 303. Protruding rod; 304. Semicircular disc; 305. Guide rod; 306. Limiting disc; 307. Triangular pad; 308. Slide groove; 309. Threaded groove; 310. Limiting groove; 4. Drive mechanism; 400. Rotating sleeve; 401. Sleeve pad; 402. Driven gear; 403. Driving gear; 404. Motor; 5. Airbag. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1 to 8 The present invention will be described in further detail below.

[0039] It should be noted that the accompanying drawings are schematic and not to scale. For clarity and convenience, the relative dimensions and proportions of the parts shown are exaggerated or reduced in size; all dimensions are merely illustrative and not limiting. Furthermore, the same reference numerals are used for the same structures, elements, or fittings appearing in more than two drawings to indicate similar features.

[0040] This invention discloses a testing mechanism for the permeability pressure of water in coal mine shafts. (Refer to...) Figures 1 to 8 A testing mechanism for permeable water pressure in coal mine shafts includes a rectangular frame 1, a lifting mechanism 2, and a drilling mechanism 3. The rectangular frame 1 is used to contact the inner wall of the coal mine shaft. The lifting mechanism 2 is located on the side of the rectangular frame 1 and is used for lifting and lowering the drilling mechanism 3. The drilling mechanism 3 is located on the side of the lifting mechanism 2 and is used to drill holes in the inner wall of the coal mine shaft. The drilling mechanism 3 includes a drill cylinder 300 mounted on the lifting mechanism 2, with a pointed corner pad 301 fixedly connected to the side end of the drill cylinder 300, and a vertical plate 302 inserted into the interior of the drill cylinder 300. A pair of protruding rods 303 are fixedly connected to one side of the upright plate 302 near the corner pad 301. A semi-circular disk 304 is fixedly connected to the side end of each of the two protruding rods 303, and the two semi-circular disks 304 are arranged at the side port of the drill barrel 300. A guide rod 305 is rotatably connected to the other side of the upright plate 302, and the side end of the guide rod 305 is arranged outside the drill barrel 300. A limiting disk 306 is fixedly connected to the middle of the guide rod 305, and the limiting disk 306 is threadedly connected to the inner wall of the drill barrel 300. A driving mechanism 4 is also provided on the lifting mechanism 2 to drive the drill barrel 300 to rotate.

[0041] Specifically, in areas where there are signs of water seepage or potential seepage on the inner wall of a coal mine shaft, a rectangular frame 1 is placed against the inner wall. The drive mechanism 4 then rotates the drill barrel 300. The operator then pushes the lifting mechanism 2, causing the rotating drill barrel 300 to plunge into the inner wall for a water pressure test. The drive mechanism 4 is then shut off, and the guide rod 305 is rotated, causing the limiting disc 306 to rotate and move within the drill barrel 300. This allows the guide rod 305 to pull the two semicircular discs 304 away from the pointed pads 301, allowing water from the inner wall to seep into the drill barrel 300. When the limiting disc 306 and the threaded section of the drill barrel 300... After complete separation, the operator can directly pull the guide rod 305 to completely separate the semicircular disk 304 from the drill barrel 300. Finally, the external water pressure gauge is inserted and installed inside the drill barrel 300 to measure the seepage water pressure. Through this structural design, it is convenient for the operator to measure the seepage water pressure in the coal mine shaft. Moreover, the water pressure gauge is protected by the drill barrel 300, which can prevent the water pressure gauge from being damaged by external objects or squeezed by the pressure of the inner wall. At the same time, after one drill barrel 300 is assembled, the entire rectangular frame 1 can be quickly disassembled for the assembly of the second drill barrel 300, which is conducive to multi-point seepage water pressure testing of the inner wall of the coal mine shaft.

[0042] Reference Figure 4 and Figure 8 Both semicircular disks 304 have triangular pads 307 fixed to their sides, and the triangular pads 307 are in contact with the pointed corner pads 301. By setting the triangular pads 307, the pointed corner pads 301 can be limited by the two triangular pads 307, so as to avoid the triangular pads 307 from deforming during operation. They can also assist the triangular pads 307 in making holes.

[0043] Reference Figure 5 and Figure 6 The drill barrel 300 is also provided with a pair of sliding grooves 308 for positioning the vertical plate 302 in the drill barrel 300. By setting the sliding grooves 308, the vertical plate 302 can be positioned to ensure that when the vertical plate 302 is inserted into the drill barrel 300, the two semi-circular disks 304 can be accurately inserted into the side port of the drill barrel 300, thereby increasing the assembly speed of the drill barrel 300.

[0044] Reference Figure 4 and Figure 5 The drill barrel 300 has a threaded groove 309 on its outside for contacting the inner wall of the coal mine shaft. By opening the threaded groove 309, the stability of the contact between the drill barrel 300 and the inner wall can be increased when the drill barrel 300 is driven into the inner wall.

[0045] Reference Figure 1 and Figure 2The lifting mechanism 2 includes multiple slide rods 200 fixedly mounted on the side of the rectangular frame 1, and a movable plate 201 is slidably connected between the middle parts of each slide rod 200.

[0046] Specifically, when the lifting mechanism 2 is in use, the operator pushes the movable plate 201, causing the movable plate 201 to slide on each slide rod 200, thereby completing the operation of the drill barrel 300 penetrating the inner wall. Moreover, when the movable plate 201 is lifted, the movable plate 201 can be separated from the drill barrel 300.

[0047] Reference Figure 1 and Figure 2 as well as Figure 3 The drive mechanism 4 includes a rotating sleeve 400 rotatably connected to the center of the side of the moving plate 201. Multiple retaining pads 401 are fixedly connected at equal intervals on the inner wall of the rotating sleeve 400. Multiple limiting grooves 310 are opened on the outer side of the drill barrel 300. The drill barrel 300 is inserted and assembled in the rotating sleeve 400, and each retaining pad 401 is inserted and engaged with the corresponding limiting groove 310. A driven gear 402 is fixedly provided on the outer side of the rotating sleeve 400. A driving gear 403 is rotatably connected to the side of the moving plate 201, and the driving gear 403 is meshed with the driven gear 402. A motor 404 for driving the driving gear 403 to rotate is also installed on the side of the moving plate 201.

[0048] Specifically, the drive mechanism 4 is used by the motor 404 to drive the drive gear 403 to rotate, which in turn drives the driven gear 402 to rotate. The rotation of the driven gear 402 drives the drill barrel 300 to rotate through the rotating sleeve 400, thereby completing the rotation operation of the drill barrel 300. After the drill barrel 300 is inserted into the inner wall, the operator lifts the plate 201, which can separate the retaining pad 401 on the rotating sleeve 400 from the limiting groove 310, thereby completing the separation of the rotating sleeve 400 and the drill barrel 300. Through this structural design, the rotation of the drill barrel 300 can be completed, and the assembly of the drill barrel 300 is also convenient.

[0049] Reference Figure 1 A pair of retaining sleeves 202 are fixedly connected to the side of the moving plate 201 relative to the position of the drill barrel 300, and the sides of the two retaining sleeves 202 are slidably connected with a stop bar for contacting the side end of the drill barrel 300. By setting the retaining sleeves 202, the stop bar can be pushed before using the drill barrel 300, so that the two stop bars are arranged at the side end of the drill barrel 300. Thus, when the drill barrel 300 is working, it can prevent the drill barrel 300 from suddenly slipping and accidentally injuring the user.

[0050] Reference Figure 1 and Figure 2An airbag 5 is provided on the side of the rectangular frame 1 for contacting the inner wall of the coal mine shaft. By providing the airbag 5, when the rectangular frame 1 contacts the uneven inner wall, the airbag 5 can contact the inner wall. The airbag 5 adapts to the uneven inner wall, thereby ensuring the stability of the rectangular frame 1 in contact with the inner wall.

[0051] Reference Figure 1 and Figure 2 The back of the rectangular frame 1 is also equipped with a rubber gasket. The rectangular frame 1 is used by the user to press the rectangular frame 1 by hand to protect it. By setting the rubber gasket, the stability of the rectangular frame 1 in contact with the inner wall can be increased.

[0052] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0053] The implementation principle of a test mechanism for water pressure infiltration in coal mine shafts according to an embodiment of the present invention is as follows: First, at a location on the inner wall of the coal mine shaft where there are signs of water seepage or where water seepage is possible, a rectangular frame 1 is placed against the inner wall. Then, the drill barrel 300 is rotated by the drive mechanism 4. Next, the operator pushes the lifting mechanism 2, causing the rotating drill barrel 300 to penetrate into the inner wall for water pressure testing. Then, the drive mechanism 4 is turned off, and the guide rod 305 is rotated to make the limiting disk 306 rotate and move inside the drill barrel 300. This allows the guide rod 305 to pull the two semicircular disks 304 to move and separate from the pointed pads 301, thereby allowing water in the inner wall to seep into the drill barrel 300. Inside, after the limiting disc 306 is completely separated from the threaded section of the drill barrel 300, the operator can directly pull the guide rod 305 to completely separate the semicircular disc 304 from the drill barrel 300. Finally, the external water pressure gauge is inserted and installed inside the drill barrel 300 to measure the seepage water pressure. Through this structural design, it is convenient for the operator to measure the seepage water pressure in the coal mine shaft. Moreover, the water pressure gauge is protected by the drill barrel 300, which can prevent the water pressure gauge from being damaged by external objects. At the same time, after one drill barrel 300 is assembled, the entire rectangular frame 1 can be quickly disassembled for the assembly of the second drill barrel 300, which is conducive to multi-point seepage water pressure testing on the inner wall of the coal mine shaft.

[0054] When in use, the lifting mechanism 2 is operated by the operator pushing the movable plate 201, which slides on each slide rod 200, thereby completing the operation of the drill barrel 300 penetrating the inner wall. Moreover, when the movable plate 201 is lifted, the movable plate 201 can be separated from the drill barrel 300.

[0055] The drive mechanism 4 is used by the motor 404 driving the drive gear 403 to rotate, which in turn drives the driven gear 402 to rotate. The rotation of the driven gear 402 drives the drill barrel 300 to rotate through the rotating sleeve 400, thereby completing the rotation operation of the drill barrel 300. After the drill barrel 300 is inserted into the inner wall, the operator lifts the moving plate 201, which can separate the retaining pad 401 on the rotating sleeve 400 from the limiting groove 310, thereby completing the separation of the rotating sleeve 400 and the drill barrel 300. Through this structural design, the rotation of the drill barrel 300 can be completed, and the assembly of the drill barrel 300 is also convenient.

[0056] Furthermore, by setting up the airbag 5, when the rectangular frame 1 contacts the uneven inner wall, the airbag 5 can contact the inner wall, and the airbag 5 adapts to the uneven inner wall, thereby ensuring the stability of the rectangular frame 1 in contact with the inner wall.

[0057] Finally, the following points should be noted: First, in the description of this invention, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical connection or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the object being described changes, the relative positional relationship may change.

[0058] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0059] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A testing mechanism for the permeability pressure of water in coal mine shafts, characterized in that, include: A rectangular frame (1), a lifting mechanism (2), and a drilling mechanism (3); A rectangular frame (1) is used to contact the inner wall of the coal mine shaft; The lifting mechanism (2) is located on the side of the rectangular frame (1) and is used for lifting the drilling mechanism (3); Drilling mechanism (3) is set on the side of lifting mechanism (2) and is used to drill holes in the inner wall of coal mine shaft; The drilling mechanism (3) includes a drill cylinder (300) mounted on the lifting mechanism (2). A sharp corner pad (301) is fixedly connected to the side end of the drill cylinder (300). A vertical plate (302) is inserted into the inside of the drill cylinder (300). A pair of protruding rods (303) are fixedly connected to the side of the vertical plate (302) near the sharp corner pad (301). A semi-circular disk (304) is fixedly connected to the side end of each of the two protruding rods (303). The two semi-circular disks (304) are arranged at the side port of the drill cylinder (300). A guide rod (305) is rotatably connected to the other side of the vertical plate (302). The side end of the guide rod (305) is arranged outside the drill cylinder (300). A limiting disk (306) is fixedly connected to the middle of the guide rod (305). The limiting disk (306) is threadedly connected to the inner wall of the drill cylinder (300). The lifting mechanism (2) is also equipped with a driving mechanism (4) for driving the drill barrel (300) to rotate.

2. The testing mechanism for permeable water pressure in coal mine shafts according to claim 1, characterized in that: Both of the two semi-circular disks (304) have triangular pads (307) fixed to their sides, and the triangular pads (307) are in contact with the pointed pads (301).

3. The testing mechanism for permeable water pressure in coal mine shafts according to claim 2, characterized in that: The drill barrel (300) is also provided with a pair of sliding grooves (308) for positioning the vertical plate (302) in the drill barrel (300).

4. The testing mechanism for permeable water pressure in coal mine shafts according to claim 3, characterized in that: The drill barrel (300) has a threaded groove (309) on its outside for contacting the inner wall of the coal mine shaft.

5. The testing mechanism for permeable water pressure in coal mine shafts according to claim 1, characterized in that: The lifting mechanism (2) includes multiple slide rods (200) fixedly mounted on the side of the rectangular frame (1), and a movable plate (201) is slidably connected between the middle parts of each slide rod (200).

6. The testing mechanism for permeable water pressure in coal mine shafts according to claim 5, characterized in that: The driving mechanism (4) includes a rotating sleeve (400) rotatably connected to the center of the side of the moving plate (201). Multiple retaining pads (401) are fixedly connected at equal intervals on the inner wall of the rotating sleeve (400). Multiple limiting grooves (310) are opened on the outer side of the drill barrel (300). The drill barrel (300) is inserted and assembled in the rotating sleeve (400), and each retaining pad (401) is inserted and engaged with the corresponding limiting groove (310). A driven gear (402) is fixedly provided on the outer side of the rotating sleeve (400). A driving gear (403) is rotatably connected to the side of the moving plate (201), and the driving gear (403) meshes with the driven gear (402). A motor (404) for driving the driving gear (403) to rotate is also assembled on the side of the moving plate (201).

7. A testing mechanism for permeable water pressure in coal mine shafts according to claim 6, characterized in that: A pair of retaining sleeves (202) are fixedly connected to the side of the moving plate (201) relative to the position of the drill barrel (300), and both retaining sleeves (202) are slidably connected to the side of the two retaining sleeves (202) for contacting the side end of the drill barrel (300).

8. The testing mechanism for permeable water pressure in coal mine shafts according to claim 1, characterized in that: The rectangular frame (1) is provided with an airbag (5) on its side, which is used for the rectangular frame (1) to contact the inner wall of the coal mine shaft.

9. A testing mechanism for permeable water pressure in coal mine shafts according to claim 8, characterized in that: A rubber gasket is also provided on the back of the rectangular frame (1) to protect the rectangular frame (1).

Images