An upwardly inclined hole double-end water shutoff device with obstacle crossing function

Abstract

The utility model relates to water guide fissure range detection equipment field, concretely is a kind of uphole double-end water stopper with obstacle-surmounting function;The double-end water stopper includes double-end water stopper body and gyro wheel subassembly, the gyro wheel subassembly includes two tripods, and the end point between two tripods corresponding points is connected by gyro wheel shaft, and the end point of each tripod is connected and fixed between the center by support rod, and the center between two tripods is connected by center shaft;Three gyro wheel shafts are rotatably connected with heavy gyro wheel one, heavy gyro wheel two and light gyro wheel respectively;The center shaft is connected with the top end of hard pipe with hole by connecting block.The utility model innovatively applies gyro wheel subassembly to double-end water stopper for climbing steps, and the utility model can solve the technical problem that the top end of double-end water stopper is easily stuck at the step in uphole, the utility model structure is simple, gyro wheel subassembly can be directly installed on existing double-end water stopper, application is convenient, and it is strong in popularization.

Description

Technical Field

[0001] This utility model relates to the field of water-conducting fissure range detection equipment, specifically a double-ended water-blocking device with an oblique hole that has an obstacle-crossing function. Background Technology

[0002] Double-ended water-blocking devices are commonly used in coal mining to detect the extent of water-conducting fracture zones. For example... Figure 1 As shown, during the exploration, firstly, an inclined hole 2 is constructed from roadway 1 to the roof above the goaf. The construction height of the inclined hole 2 is higher than the estimated height of the water-conducting fracture zone. A double-ended water plug is inserted into the inclined hole 2, and the water conductivity of the rock strata is tested section by section from the hole opening to the bottom of the hole. The maximum height of the water-conducting rock strata measured is the height of the water-conducting fracture zone of the overlying rock of the mining area.

[0003] The construction of inclined borehole 2 is challenging. Adjacent rock strata, especially those with significant strength differences, are prone to misalignment, forming step 21. Furthermore, because inclined borehole 2, used for detecting water-conducting fracture zones, is located above the goaf, the overlying rock is affected by mining activities, causing adjacent strata to lose their cementation and develop water-conducting layered fractures. This makes misalignment and step 21 more likely during the construction of inclined borehole 2. In addition, during the detection of water-conducting rock strata in inclined borehole 2, mining operations may still affect the borehole, causing movement of the overlying strata and creating misalignment between strata.

[0004] In an inclined borehole 2 with a staggered or stepped section 21, when pushing the double-ended water plug upwards, the top of the plug is prone to getting stuck at the stepped section 21, making it impossible to continue the detection of water-conducting rock strata. When encountering this problem, the double-ended water plug is usually withdrawn first, the stepped section is drilled through with a drilling rig, and then the double-ended water plug is used again for detection. However, drilling through the stepped section with a drilling rig is difficult, and it is hard to accurately drill to the stepped section. Moreover, when there are many steps, repeated drilling through the stepped section and water-conducting detection increases the workload of detection and affects the detection results and efficiency. Utility Model Content

[0005] To address the technical problem of the top of a double-ended water-blocking device easily getting stuck at steps in an inclined hole, this utility model proposes a double-ended water-blocking device with obstacle-crossing function. A roller assembly is installed at the end of the double-ended water-blocking device to facilitate climbing over steps. Specifically, the double-ended water-blocking device with obstacle-crossing function includes a double-ended water-blocking device body and a roller assembly. The double-ended water-blocking device body includes a perforated rigid tube, with a capsule fixedly connected to each end of the perforated rigid tube. The cavities of the two capsules are connected by a connecting pipe, and the outer capsule is connected to an expansion water pipe; the perforated section between the two capsules... The rigid tube is provided with a water outlet hole, and the perforated rigid tube outside the outer capsule is connected to the detection water tube; the end of the perforated rigid tube outside the inner capsule is closed; the roller assembly includes two tripods, the corresponding endpoints of the two tripods are connected by roller shafts, and the endpoint of each tripod is connected and fixed to its center by a support rod. The two intersections of the support rod, that is, the centers of the two tripods, are connected by a central shaft, and the two tripods are rotatably connected to the central shaft; three roller shafts are respectively rotatably connected to heavy roller one, heavy roller two, and light roller; the central shaft is connected to the top of the perforated rigid tube through a connecting block.

[0006] Preferably, two heavy rollers 1, two heavy rollers 2, and two light rollers 53 are used.

[0007] Preferably, the roller assembly is rotatable about the long axis of the double-ended water blocker body.

[0008] Preferably, the connecting block is rotatably connected to the top end of the perforated rigid tube via a bearing.

[0009] Preferably, the connecting block and the perforated rigid pipe are connected at an obtuse angle.

[0010] Preferably, the angle between the connecting block and the perforated rigid tube is 160-170°.

[0011] Preferably, it also includes a first water injection device and a second water injection device, wherein the first water injection device is connected to the expansion water pipe; and the second water injection device is connected to the detection water pipe.

[0012] Preferably, the end of the expansion pipe near the first water injection device is provided with a first flow meter and a first pressure gauge, and / or the end of the detection pipe near the second water injection device is provided with a second flow meter and a second pressure gauge.

[0013] The advantages of this utility model are as follows: This utility model innovatively applies the roller assembly for climbing steps to the double-ended water blocker for detecting water-conducting fracture zones, which can solve the technical problem that the top of the double-ended water blocker is easily stuck at the step in the inclined hole. This utility model has a simple structure and the roller assembly can be directly installed on the existing double-ended water blocker. It is convenient to use and has strong scalability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the water-guiding crack detection in the existing technology of the inclined hole double-ended water plug;

[0016] Figure 2 This is a schematic diagram of the water-guiding crack detection of the inclined hole double-ended water plug of this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of a portion of the middle roller assembly;

[0018] Figure 4 This is an exploded view of the roller assembly of this utility model;

[0019] In the diagram: 1-tunnel; 2-inclined hole; 21-step; 30-capsule; 31-connecting pipe; 32-expansion water pipe; 40-perforated rigid pipe; 41-water outlet; 42-detection water pipe; 5-roller assembly; 51-heavy roller one; 52-heavy roller two; 53-light roller; 54-tripod; 55-support rod; 56-central shaft; 57-roller shaft; 58-connecting block; 59-bearing. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments and accompanying drawings. In the illustrated embodiments, the directional representations, such as up, down, left, right, front, and back, are relative and are used to explain the relative structures of different components in this application. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, then these representations are considered to change accordingly.

[0021] like Figure 2-3As shown, this utility model proposes a double-ended water-blocking device with obstacle-crossing function for inclined holes. It includes a double-ended water-blocking device body and a roller assembly 5. The double-ended water-blocking device body includes a perforated rigid pipe 40. A capsule 30 is fixedly connected to each end of the perforated rigid pipe 40. The cavities of the two capsules 30 are connected by a connecting pipe 31. The outer capsule 30 is connected to an expansion water pipe 32. A water outlet 41 is provided on the perforated rigid pipe 40 between the two capsules 30. The perforated rigid pipe 40 outside the outer capsule is connected to a detection water pipe 42. The end of the perforated rigid pipe 40 outside the inner capsule 30 is closed and connected to the roller assembly 5. Preferably, the connection is a rotatable connection, meaning the roller assembly 5 can rotate around the long axis of the double-ended water-blocking device body. The roller assembly includes two equilateral triangular frames 54. The corresponding endpoints are connected by roller shafts 57. The endpoints of each tripod 54 are connected and fixed to its center by support rods 55. The two intersections of support rods 55, i.e. the centers of the two tripods 54, are connected by a central shaft 56. The two tripods 54 are rotatably connected to the central shaft 56. The three roller shafts 57 are respectively rotatably connected to heavy roller 1 51, heavy roller 2 52, and light roller 53. It is preferred to use two heavy rollers 1 51, heavy roller 2 52, and light roller 53. The central shaft 56 is connected to the top end of the perforated rigid pipe 40 by a connecting block 58, and preferably rotatably connected by a bearing 59, so that the roller assembly 5 can rotate around the long axis of the double-ended water blocker body. In addition, the connecting block 58 is preferably connected to the perforated rigid pipe 40 at an obtuse angle of 160-170°.

[0022] In addition, the double-ended water blocker also includes a first water injection device and a second water injection device. The first water injection device is connected to the expansion water pipe 32. The expansion water pipe 32 is provided with a first flow meter and a first pressure gauge at one end near the first water injection device. The second water injection device is connected to the detection water pipe 42. The detection water pipe 42 is provided with a second flow meter and a second pressure gauge at one end near the second water injection device.

[0023] The steps for detecting the height of the water-conducting fracture zone using the double-ended water-blocking device of this invention are as follows:

[0024] a. Construct inclined borehole 2 in roadway 1 into the overlying rock above the goaf. The construction height of inclined borehole 2 is higher than the estimated height of the water-conducting fracture zone.

[0025] b. Insert the double-ended water plug into the inclined hole 2;

[0026] c. Test the water conductivity of the rock strata segment by segment from the orifice to the bottom of the orifice. The test method for each segment is as follows: After placing the double-ended water plug in the predetermined orifice segment, inject water into the capsule 30 through the first water injection device until the set pressure and flow rate are reached. The capsule expands and fixes the double-ended water plug in the predetermined orifice segment. Inject water into the perforated rigid pipe 40 through the second water injection device. The water flows out from the outlet hole 41 to the orifice segment between the two capsules. By observing the second flow meter and the second pressure meter, it is determined whether the water flows into the rock strata corresponding to the orifice segment, and then it is determined whether the orifice segment is water-conducting and whether it belongs to the water-conducting fracture zone. After the determination is completed, release the water in the capsule 30 and test the next orifice segment in the same way.

[0027] d. Under the action of gravity, heavy roller 1 51 and heavy roller 2 52 are always at the bottom, and light roller 53 is always at the top. When the double-ended water blocker encounters step 21, the heavy roller group near step 21 will climb at step 21 and thus cross step 21.

[0028] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A double-ended water-blocking device with an inclined hole and obstacle-crossing function, characterized in that, The device includes a double-ended water-blocking device body and a roller assembly. The double-ended water-blocking device body includes a perforated rigid tube, with a capsule fixedly connected to each end of the perforated rigid tube. The cavities of the two capsules are connected by a connecting pipe, and the outer capsule is connected to an expansion water pipe. A water outlet is provided on the perforated rigid tube between the two capsules, and the perforated rigid tube outside the outer capsule is connected to a detection water pipe. The end of the perforated rigid tube outside the inner capsule is closed. The roller assembly includes two tripods, with corresponding endpoints of the two tripods connected by roller shafts. Each endpoint of each tripod is connected and fixed to its center by a support rod. The two intersections of the support rods, i.e., the centers of the two tripods, are connected by a central shaft, and the two tripods are rotatably connected to the central shaft. Three roller shafts are respectively rotatably connected to a heavy roller one, a heavy roller two, and a light roller. The central shaft is connected to the top end of the perforated rigid tube through a connecting block.

2. The double-ended water blocker according to claim 1, characterized in that, Two heavy rollers are used for each of the three types: heavy roller 1, heavy roller 2, and light roller.

3. The double-ended water blocker according to claim 1, characterized in that, The roller assembly is capable of rotating around the long axis of the double-ended water plug body.

4. The double-ended water-blocking device according to claim 1 or 3, characterized in that, The connecting block is rotatably connected to the top of the perforated rigid tube via a bearing.

5. The double-ended water blocker according to claim 4, characterized in that, The connecting block is connected to the perforated rigid pipe at an obtuse angle.

6. The double-ended water-blocking device according to claim 5, characterized in that, The angle between the connecting block and the perforated rigid pipe is 160-170°.

7. The double-ended water blocker according to claim 6, characterized in that, It also includes a first water injection device and a second water injection device, wherein the first water injection device is connected to the expansion water pipe; and the second water injection device is connected to the detection water pipe.

8. The double-ended water blocker according to claim 7, characterized in that, The expansion pipe is equipped with a first flow meter and a first pressure gauge at one end near the first water injection device, and / or the detection pipe is equipped with a second flow meter and a second pressure gauge at one end near the second water injection device.

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