Drilling water pressure test device

Abstract

The utility model relates to a drilling water pressure test device, and belongs to the technical field of pressure test devices, the drilling water pressure test device comprises a frame body, a drilling device and a water injection device are arranged on the frame body, the drilling device comprises a drill bit, a rotating motor and an air cylinder, the rotating motor is fixedly connected with the drill bit, and the air cylinder drives the rotating motor and the drill bit to reciprocate in the vertical direction; and the water injection device comprises a water injection pipe and a movable water tank, a lead screw assembly used for driving the water injection pipe to move close to or away from the drill bit is arranged on the peripheral side of the air cylinder, rolling wheels are rotationally connected to the bottom of the frame body, and during transportation, the rolling wheels are driven to make contact with the ground, and manpower and material resources can be saved. And the position of the water injection device relative to the drilling device can be conveniently adjusted.

Description

Technical Field

[0001] The present application relates to the technical field of pressure testing devices, and in particular to a drilling water pressure testing device. Background Art

[0002] At present, borehole water pressure test is an important technical means to evaluate the water permeability of the formation in geological exploration and engineering practice. By drilling a hole in the formation and pressurizing water into the hole, the flow rate and pressure change of the water are measured to analyze the permeability characteristics of the formation. However, the traditional borehole water pressure test device has problems such as complex operation and low measurement accuracy, which can hardly meet the needs of modern geological exploration and engineering practice for high-precision test data.

[0003] There are some borehole water pressure test devices on the market, which are usually composed of a drilling mechanism, a water pressure mechanism and a simple measuring device. The drilling mechanism is used to form a borehole in the stratum, the water pressure mechanism is responsible for pressurizing water into the borehole, and the measuring device is used to measure the flow and pressure of water. However, these existing devices are often installed separately, which is not only inconvenient for installation and testing, but also increases the cost of transportation and storage. Utility Model Content

[0004] In order to facilitate adjustment of the position of the water injection device relative to the drilling device when the drilling device and the water injection device are installed in combination, the present application provides a drilling water pressure test device.

[0005] The present application provides a drilling water pressure test device that adopts the following technical solution:

[0006] A drilling water pressure test device comprises a frame, which is horizontally arranged, and also comprises a drilling device and a water injection device. The drilling device comprises a drill bit and a rotating motor. The motor shaft of the rotating motor is fixedly connected to the drill bit. The rotating motor drives the drill bit to rotate relative to the frame. The rotating axis direction of the drill bit is along the vertical direction. The rotating motor reciprocates in the vertical direction relative to the frame. The water injection device comprises a water injection pipe, which is slidably connected to the drill bit. A screw assembly for driving the water injection pipe to slide is arranged on the periphery of the drill bit. A mobile water tank is fixedly connected to the end of the water injection pipe away from the drill bit, and a pressure detector is fixed on the water injection pipe.

[0007] By adopting the above technical scheme, at the location where the drilling test is required, the frame is fixed, and the drill bit is driven to gradually approach the ground to drill a hole. Before the drill bit drills the ground, the screw assembly is used to drive the water injection pipe to move to a suitable position close to the drill bit. Then, when the drill bit is working, the water injection pipe simultaneously injects water into the hole, and the pressure detector promptly detects the pressure of the water injected into the hole by the water injection pipe. This facilitates the installation and position adjustment of the drill bit and the water injection pipe, thereby improving the efficiency of the drilling water pressure test.

[0008] Optionally, a movable hole is opened on the frame, a cover shell is fixed on the movable hole, a cylinder is fixed on the cover shell, and a movable end of the cylinder passes through the movable hole and is fixedly connected to the rotating motor.

[0009] By adopting the above technical solution, the cover shell can play a role of protection and tidiness, and can fix the cylinder. The reciprocating motion of the cylinder can drive the drill bit to gradually approach the ground and perform the drilling work.

[0010] Optionally, the screw assembly includes a first threaded rod, a second threaded rod, a threaded block and a clamping member, the first threaded rod is rotatably connected relative to the frame, the rotation axis direction of the first threaded rod is along the horizontal direction, the threaded block is fixed to the second threaded rod, and the threaded block is threadedly connected to the first threaded rod, the first threaded rod is provided with a first limit frame for providing guidance to the threaded block, the second threaded rod is horizontally arranged and arranged perpendicular to the first threaded rod, the clamping member is threadedly connected to the second threaded rod, and the second threaded rod is provided with a second limit frame for providing guidance to the clamping member.

[0011] By adopting the above technical solution, the clamping member clamps the water injection pipe and is threadedly connected to the second threaded rod, so that when the second threaded rod rotates, it can move closer to or away from the drill bit. In addition, the second threaded rod is fixed to the threaded block, and the threaded block is threadedly connected to the first threaded rod. Driven by the threaded block, the second threaded rod can move as a whole in a direction closer to or away from the drill bit.

[0012] Optionally, the clamping member includes a hoop and a roller, the hoop is threadedly connected to the second threaded rod, the roller is arranged on the inner side of the hoop and is rotatably connected relative to the hoop, and the rotation axis direction of the roller is perpendicular to the conveying direction of the water injection pipe.

[0013] By adopting the above technical solution, after the clamp clamps the water injection pipe, the water injection pipe will gradually approach the drill bit from top to bottom, and when the clamp moves relative to the second threaded rod and the first threaded rod, the water injection pipe will also slide with the clamp. At this time, the roller will reduce the friction force of the water injection pipe relative to the clamp, so that the water injection pipe can slide more smoothly relative to the clamp.

[0014] Optionally, a converging shell is fixed on the rotating motor, the converging shell is arranged on the periphery of the drill bit, the bottom of the converging shell is missing, and the water injection pipe passes through the converging shell and is fixedly connected to the converging shell.

[0015] By adopting the above technical solution, the focusing shell can better gather the water flowing out of the water injection pipe to flow to the drill bit, and can also reduce waste.

[0016] Optionally, a roller is rotatably connected to the bottom of the frame, and the rotation axis of the roller is in the horizontal direction. The frame is provided with a driving component for driving the roller to abut against the ground when the frame is transported.

[0017] By adopting the above technical solution, during transportation, the rollers are rotated so that the rollers touch the ground, replacing the support of the frame, which is more convenient for transportation. During the drilling test, the rollers only need to be folded up.

[0018] Optionally, the driving assembly includes a worm wheel, a worm and a bracket, the worm wheel and the bracket are fixedly connected, the end of the bracket away from the worm wheel rotates relative to the roller, the worm and the worm wheel are meshed, the worm rotates relative to the frame, and the rotation axis of the worm is in the vertical direction.

[0019] By adopting the above technical solution, the worm rotates and meshes with the worm wheel, thereby driving the worm wheel to rotate. The worm wheel is fixed to the roller through the bracket. When the worm wheel rotates, the bracket and the roller rotate until the roller touches the ground.

[0020] Optionally, a rotating rod is rotatably connected to the frame, a first rotating tooth is fixed on the rotating rod, a second rotating tooth is fixed on the worm, and the first rotating tooth and the second rotating tooth are meshed.

[0021] By adopting the above technical solution, the first rotating tooth is driven to rotate by the rotating rod, and the first rotating tooth and the second rotating tooth are engaged, which not only can change the rotation direction of the worm, but also can make the two rollers on the same side move synchronously, so as to maintain the overall balance of the frame.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The clamping member in the screw assembly can not only move relative to the second threaded rod, but the second threaded rod can also move relative to the first threaded rod. The first threaded rod is arranged vertically relative to the second threaded rod, so that the position of the water injection pipe relative to the drill bit can be adjusted at multiple angles in the horizontal plane;

[0024] 2. When the frame is transported, the driving rollers are in contact with the ground, which can save time and effort and facilitate transportation. During the drilling test, the rollers are retracted so that the frame is fixed on the ground, which is more conducive to maintaining the stability of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0026] Figure 2 It is a schematic diagram showing the structure of the drill bit and the rotating motor;

[0027] Figure 3 It is a schematic diagram showing the structure of the frame from a top view;

[0028] Figure 4 yes Figure 3 Schematic diagram of the local enlarged structure of part A.

[0029] In the figure, 1, frame; 11, movable hole; 12, cover; 13, reel; 2, drilling device; 21, drill bit; 22, rotating motor; 221, focusing shell; 23, cylinder; 3, water injection device; 31, water injection pipe; 311, pressure detector; 32, mobile water tank; 4, screw assembly; 41, first threaded rod; 411, first motor; 412, first limit frame; 42, second threaded rod; 421, second motor; 422, second limit frame; 43, threaded block; 44, clamping part; 441, clamping hoop; 442, roller; 5, roller; 6, driving assembly; 61, worm gear; 62, worm; 63, bracket; 64, support rod; 65, support; 7, rotating rod; 71, first rotating tooth; 72, second rotating tooth; 73, third motor. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0031] The embodiment of the present application discloses a drilling water pressure test device.

[0032] refer to Figure 1 and Figure 2 A drilling water pressure test device includes a frame 1, which is horizontally arranged. A drilling device 2 and a water injection device 3 are arranged on the frame 1. A cover shell 12 is fixed on the frame 1. The drilling device 2 includes a drill bit 21, a rotating motor 22 and a cylinder 23. The motor shaft of the rotating motor 22 is fixedly connected to the drill bit 21, the cylinder 23 is fixedly connected to the cover shell 12, and the movable end of the cylinder 23 passes through the cover shell 12 and is fixedly connected to the rotating motor 22. The drill bit 21 is arranged vertically downward; the water injection device 3 includes a water injection pipe 31 and a mobile water tank 32. The water injection pipe 31 passes through the cover shell 12 and is arranged close to the drill bit 21. A reel 13 is fixed on the frame 1. The water injection pipe 31 is fixedly connected to the mobile water tank 32 after being wound on the reel 13. A pressure detector 311 is fixed on the water injection pipe 31.

[0033] refer to Figure 1 , Figure 2 and Figure 3 A movable hole 11 is opened on the frame 1, and the movable hole 11 is directly below the cover shell 12. The drill bit 21 and the cylinder 23 are arranged at the center of the movable hole 11, and a screw assembly 4 is arranged around the drill bit 21.

[0034] The lead screw assembly 4 includes a first threaded rod 41, a second threaded rod 42, a first limit frame 412, a second limit frame 422, a threaded block 43 and a clamping member 44. A first motor 411 is fixed to the first threaded rod 41, and the first motor 411 drives the first threaded rod 41 to rotate horizontally relative to the first limit frame 412. The threaded block 43 is fixed to the second limit frame 422, and the threaded block 43 is threadedly connected to the first threaded rod 41. The second threaded rod 42 is horizontally arranged in the second limit frame 422 and is rotatably connected relative to the second limit frame 422. The second threaded rod 42 is arranged perpendicular to the first threaded rod 41. The first threaded rod 41 and the second threaded rod 42 are respectively arranged in two groups and are arranged in a mouth shape on the side of the cylinder 23. The first threaded rod 41 and the second threaded rod 42 are respectively arranged in pairs along the center symmetry of the cylinder 23. The reel 13 on the frame 1 is also arranged in two groups, and the clamping member 44 is threadedly connected to the second threaded rod 42.

[0035] A converging shell 221 is fixed on the rotating motor 22. The converging shell 221 is arranged on the peripheral side of the drill bit 21, and the closer to the drill bit 21, the more it converges toward the drill bit 21. The bottom of the converging shell 221 is missing, and a through hole is opened on the top of the converging shell 221. The water injection pipe 31 passes through the through hole and is fixedly connected to the converging shell 221.

[0036] refer to Figure 4 The clamping member 44 includes a clamp 441 and a roller 442. The clamp 441 is arranged into two arc-shaped fixing blocks and fixed by bolts. The fixing blocks are threadedly connected to the second threaded rod 42. The rollers 442 are respectively arranged on the inner side of the clamp 441 and are rotatably connected relative to the clamp 441. The rotation axis direction of the roller 442 is perpendicular to the conveying direction of the water injection pipe 31.

[0037] refer to Figure 1 The bottom of the frame 1 includes four supporting legs, each of which is rotatably connected to a roller 5, and the rotation axis direction of the roller 5 is along the horizontal direction. A driving assembly 6 is arranged on the frame 1, and the driving assembly 6 includes a worm wheel 61, a worm 62, a bracket 63, a support rod 64 and a support 65. The worm wheel 61 and the bracket 63 are fixedly connected, and the end of the bracket 63 away from the worm wheel 61 rotates relative to the roller 5. The two worm wheels 61 on the same side are connected by a support rod 64, and the support 65 is fixed to the frame 1. The support rod 64 is horizontally arranged and the two ends are respectively fixed to the worm wheels 61 on both sides, which can maintain the stability of the movement of the worm wheel 61. The worm 62 is meshed with the worm wheel 61, and the worm 62 is vertically arranged and rotates relative to the frame 1.

[0038] refer to Figure 1A third motor 73 is fixed on the frame 1. The third motor 73 is a dual-axis motor. A rotating rod 7 is fixed at both ends of the third motor 73. A first rotating tooth 71 is fixed on the rotating rod 7. A second rotating tooth 72 is fixed on the worm 62. The first rotating tooth 71 and the second rotating tooth 72 are meshed. When the third motor 73 is started, the two worms 62 on the same side can be driven to rotate simultaneously, that is, the worm wheel 61 can be driven to rotate synchronously, and the roller 5 can be driven to contact the ground at the same time.

[0039] The implementation principle of a drilling water pressure test device in an embodiment of the present application is as follows: when the drilling device 2 and the water injection device 3 are transported, the driving roller 5 is in contact with the ground, which can save time and effort. During the drilling test, the roller 5 is retracted, the frame 1 is fixed, the drill bit 21 is driven to gradually approach the ground, and the water injection pipe 31 is passed through the clamping member 44 and the flow-collecting shell 221, the clamping member 44 is adjusted to move to a reasonable position relative to the cylinder 23, and when the drill bit 21 is started to drill, the water injection pipe 31 simultaneously injects water into the drill bit 21.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drilling water pressure test device, comprising a frame (1), the frame (1) being arranged horizontally, characterized in that: The invention also comprises a drilling device (2) and a water injection device (3). The drilling device (2) comprises a drill bit (21) and a rotating motor (22). The motor shaft of the rotating motor (22) is fixedly connected to the drill bit (21). The rotating motor (22) drives the drill bit (21) to rotate relative to the frame (1). The rotating axis direction of the drill bit (21) is along the vertical direction. The rotating motor (22) reciprocates in the vertical direction relative to the frame (1). The water injection device (3) comprises a water injection pipe (31). The water injection pipe (31) is slidably connected to the drill bit (21). A screw assembly (4) for driving the water injection pipe (31) to slide is arranged on the periphery of the drill bit (21). The end of the water injection pipe (31) away from the drill bit (21) is fixedly connected to a mobile water tank (32). A pressure detector (311) is fixed on the water injection pipe (31).

2. A drilling water pressure test device according to claim 1, characterized in that: The frame (1) is provided with a movable hole (11), a cover shell (12) is fixed on the movable hole (11), a cylinder (23) is fixed on the cover shell (12), and a movable end of the cylinder (23) passes through the movable hole (11) and is fixedly connected to the rotating motor (22).

3. A drilling water pressure test device according to claim 1, characterized in that: The screw assembly (4) comprises a first threaded rod (41), a second threaded rod (42), a threaded block (43) and a clamping member (44); the first threaded rod (41) is rotatably connected relative to the frame (1); the rotation axis direction of the first threaded rod (41) is in the horizontal direction; the threaded block (43) is fixed to the second threaded rod (42); and the threaded block (43) is threadedly connected to the first threaded rod (41); a first limit frame (412) for providing guidance for the threaded block (43) is provided on the first threaded rod (41); the second threaded rod (42) is horizontally arranged and arranged perpendicular to the first threaded rod (41); the clamping member (44) is threadedly connected to the second threaded rod (42); and a second limit frame (422) for providing guidance for the clamping member (44) is provided on the second threaded rod (42).

4. A drilling water pressure test device according to claim 3, characterized in that: The clamping member (44) comprises a clamp (441) and a roller (442); the clamp (441) is threadedly connected to the second threaded rod (42); the roller (442) is arranged on the inner side of the clamp (441) and is rotatably connected relative to the clamp (441); and the rotation axis direction of the roller (442) is perpendicular to the conveying direction of the water injection pipe (31).

5. A drilling water pressure test device according to claim 2, characterized in that: A flow-converging shell (221) is fixed on the rotating motor (22), the flow-converging shell (221) is arranged on the peripheral side of the drill bit (21), the bottom of the flow-converging shell (221) is missing, and the water injection pipe (31) passes through the flow-converging shell (221) and is fixedly connected to the flow-converging shell (221).

6. A drilling water pressure test device according to claim 1, characterized in that: The bottom of the frame (1) is rotatably connected to a roller (5), the rotation axis of the roller (5) is in the horizontal direction, and the frame (1) is provided with a driving assembly (6) for driving the roller (5) to contact the ground when the frame (1) is transported.

7. A drilling water pressure test device according to claim 6, characterized in that: The driving assembly (6) comprises a worm wheel (61), a worm (62) and a bracket (63); the worm wheel (61) and the bracket (63) are fixedly connected; one end of the bracket (63) away from the worm wheel (61) rotates relative to the roller (5); the worm (62) and the worm wheel (61) are meshed; the worm (62) rotates relative to the bracket (1); and the rotation axis of the worm (62) is in the vertical direction.

8. A drilling water pressure test device according to claim 7, characterized in that: The frame body (1) is rotatably connected with a rotating rod (7), a first rotating tooth (71) is fixed on the rotating rod (7), a second rotating tooth (72) is fixed on the worm (62), and the first rotating tooth (71) and the second rotating tooth (72) are meshed.

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