Advanced double-acting double-pipe coring device

Abstract

The utility model relates to the technical field of core sampling devices, and provides an advanced double-acting double-pipe coring device which comprises an outer pipe body and a drilling machine connector, the drilling machine connector is fixed at one end of the outer pipe body, a drill bit is fixed at the other end of the outer pipe body, and a limiting structure is arranged in the outer pipe body. The fixing structure is arranged, a servo motor is started, the servo motor drives a driving shaft to rotate, the driving shaft drives a moving plate to move through a hinge rod, the moving plate drives a sliding block to move in a sliding groove, under the action of the sliding block, the stability of the moving plate in the moving process is enhanced, the moving plate drives a clamping plate to move into a connecting base, and therefore the clamping plate is clamped in the connecting base. According to the advanced double-acting double-tube coring device, the half inner tube bodies are arranged, the stability of the half inner tube bodies during sampling is enhanced, when the clamping plate moves to the outside of the connecting base, the half inner tube bodies are conveniently opened to take out a sample, the function that the device is convenient to sample is achieved, and therefore the applicability of the advanced double-acting double-tube coring device during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of core sampling devices, in particular to an advanced double-action double-tube coring device. Background Art

[0002] Through the core, various properties of rocks can be measured, underground structures and rock deposition environments can be studied intuitively, and the properties of fluids therein can be understood. Therefore, it is necessary to use coring tools to bring underground rocks to the surface in blocks. In order to be suitable for soft, loose, broken and erosion-resistant rock and mineral layers, an advanced double-action double-tube coring device is used;

[0003] To this end, the patent with the publication number CN214997546U discloses an impact-type double-tube double-action marine rock and soil coring device, including a guide rod, a through-core impact hammer, an impact pad and an outer sleeve, the guide rod passes through the through-core impact hammer and the impact pad in sequence, and the bottom end of the guide rod is connected to the top of the outer sleeve, the inner tube is provided inside the outer sleeve, the inner tube is composed of two semi-inner tubes, the tops of the two semi-inner tubes are elastically connected by elastic connectors, the outer side walls of the semi-inner tubes are fixedly connected with positioning columns, the positioning columns are connected with the positioning through holes provided on the outer sleeve, and the top of the inner tube is provided with a compression coil spring in a compressed state. The utility model is beneficial in that it adopts a double-tube design of the outer sleeve and the inner tube, the inner tube and the outer sleeve are easy to separate, the inner tube structure is composed of two semi-inner tubes, the two semi-inner tubes are elastically connected by elastic connectors, and the two semi-inner tubes are easy to open through the elastic expansion and contraction, so that the samples hidden inside can be easily taken out;

[0004] The impact-type double-tube double-action marine rock and soil coring device mentioned above is easy to open between the two semi-inner pipes through the effect of elastic expansion and contraction during use, so as to facilitate the removal of samples hidden inside. However, the elastic expansion and contraction is not stable enough during use, and samples are prone to leakage, which makes it less suitable for use. Utility Model Content

[0005] The utility model aims to provide an advanced double-action double-tube coring device, which is used to solve the defect of unstable sampling of the existing advanced double-action double-tube coring device.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an advanced double-action double-tube coring device, comprising an outer tube body and a drilling rig joint;

[0007] A drill joint is fixed to one end of the outer tube body, and a drill bit is fixed to the other end of the outer tube body;

[0008] The outer tube body is provided with a limiting structure inside, and the limiting structure includes a semi-inner tube body, a baffle, a fixing block, a limiting block, a limiting groove, a first positioning block, a second positioning block and a connecting seat, the semi-inner tube body is evenly provided with the inside of the outer tube body, the inner part of the outer tube body on one side of the semi-inner tube body is provided with a limiting groove, the inner part of the limiting groove is provided with a limiting block, the outer wall of the semi-inner tube body close to the drilling rig joint is fixed with a second positioning block, one side of the second positioning block is provided with a first positioning block, the baffle is hinged to the inside of the semi-inner tube body on one side of the drill bit, the inner part of the semi-inner tube body on one side of the baffle is fixed with a fixing block, and the end of the semi-inner tube body close to the drilling rig joint is fixed with a connecting seat;

[0009] A fixed structure is provided at one end of the outer tube body near the drilling rig joint, and the fixed structure includes a fixed plate, a servo motor, a drive shaft, a slide groove, a slider, a movable plate, a clamping plate and a hinge rod. The fixed plate is fixed to one side of the outer tube body near the drilling rig joint, a drive shaft passes through the middle of the fixed plate, a servo motor is installed on one side of the fixed plate at one end of the drive shaft, and hinge rods are hinged on both sides of the other end of the drive shaft, slide grooves are provided at both ends of the fixed plate, sliders are provided inside the slide grooves, one side of the sliders extends to the outside of the fixed plate and is fixed with a movable plate, and a clamping plate is fixed at one end of the movable plate.

[0010] When using the device, by providing a fixed structure, the device is easy to sample, thereby improving the applicability of the advanced double-action double-tube coring device when in use; by providing a limiting structure, the device is easy to limit the half inner tube body, thereby improving the convenience of the advanced double-action double-tube coring device when in use.

[0011] Preferably, one end of the driving shaft is fixedly connected to the output end of the servo motor, the slider and the fixed plate form a sliding structure through a slide groove, and the end of the hinge rod away from the driving shaft is hinged to the moving plate. When the servo motor is started, the servo motor drives the driving shaft to rotate, and the driving shaft drives the moving plate to move through the hinge rod, and the moving plate drives the slider to move inside the slide groove. Under the action of the slider, the stability of the moving plate is enhanced when it moves, and the moving plate drives the clamping plate to move to the inside of the connecting seat, which enhances the stability of the semi-inner tube body during sampling. When the clamping plate moves to the outside of the connecting seat, it is convenient to open the semi-inner tube body to take out the sample.

[0012] Preferably, the limit block and the outer tube body form a sliding structure through a limit groove, and one side of the limit block is fixedly connected to the outer wall of the semi-inner tube body. The semi-inner tube body is moved to the inside of the outer tube body, and the semi-inner tube body drives the limit block to move inside the limit groove. When the semi-inner tube body drives the second positioning block to conflict with the first positioning block, the fixing structure is convenient to fix the semi-inner tube body.

[0013] Preferably, the outer wall of the first positioning block is fixedly connected to the inner wall of the outer tube body, and teeth are evenly arranged on one end of the semi-inner tube body close to the drill bit. When sampling, the baffle will rotate to one side of the semi-inner tube body, and after sampling, the baffle will rotate to one side of the fixed block to prevent leakage of samples inside the semi-inner tube body.

[0014] Preferably, a clamping groove is provided inside the connecting seat, and the connecting seat is fixed to the clamping plate via the clamping groove.

[0015] The utility model provides an advanced double-action double-tube coring device, which has the following advantages:

[0016] By providing a fixed structure, starting the servo motor, the servo motor drives the driving shaft to rotate, the driving shaft drives the moving plate to move through the hinged rod, the moving plate drives the slider to move inside the slide slot, under the action of the slider, the stability of the moving plate during movement is enhanced, the moving plate drives the clamping plate to move to the inside of the connecting seat, and the stability of the semi-inner tube body during sampling is enhanced. When the clamping plate moves to the outside of the connecting seat, it is convenient to open the semi-inner tube body to take out the sample, realizing the function of facilitating sampling of the device, thereby improving the applicability of the advanced double-action double-tube coring device during use;

[0017] By setting a limiting structure, the semi-inner tube body is moved to the inside of the outer tube body, and the semi-inner tube body drives the limiting block to move inside the limiting groove. When the semi-inner tube body drives the second positioning block to conflict with the first positioning block, the fixing structure is convenient to fix the semi-inner tube body. When sampling, the baffle will rotate to one side of the semi-inner tube body. After sampling, the baffle will rotate to one side of the fixing block to avoid leakage of samples inside the semi-inner tube body, thereby realizing the function of the device to limit the semi-inner tube body, thereby improving the convenience of the advanced double-action double-tube coring device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 This is a schematic diagram of the main cross-sectional structure of the fixed structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the side cross-sectional structure of the fixing structure of the utility model.

[0023] Explanation of the reference numerals in the figure: 1. outer tube body; 2. drill rig joint; 3. fixing structure; 301. fixing plate; 302. servo motor; 303. driving shaft; 304. slide groove; 305. slider; 306. moving plate; 307. clamping plate; 308. hinged rod; 4. limiting structure; 401. semi-inner tube body; 402. baffle; 403. fixing block; 404. limiting block; 405. limiting groove; 406. first positioning block; 407. second positioning block; 408. connecting seat; 5. drill bit. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 The utility model provides an advanced double-action double-tube coring device, including an outer tube body 1 and a drilling rig joint 2. The drilling rig joint 2 is fixed to one end of the outer tube body 1, and a drill bit 5 is fixed to the other end of the outer tube body 1. A limiting structure 4 is arranged inside the outer tube body 1. The limiting structure 4 includes a semi-inner tube body 401, a baffle 402, a fixing block 403, a limiting block 404, a limiting groove 405, a first positioning block 406, a second positioning block 407 and a connecting seat 408. The semi-inner tube body 401 is evenly provided with the interior of the outer tube body 1. The interior of the outer tube body 1 on one side of the semi-inner tube body 401 is provided with a limiting groove 405. The interior of the limiting groove 405 is provided with a limiting block 404. The outer wall of the semi-inner tube body 401 close to the drilling rig joint 2 is fixed with a second positioning block 407, a first positioning block 406 is provided on one side of the second positioning block 407, a baffle 402 is hinged to the inside of the semi-inner tube 401 on one side of the drill bit 5, a fixing block 403 is fixed inside the semi-inner tube 401 on one side of the baffle 402, a connecting seat 408 is fixed on one end of the semi-inner tube 401 close to the drill rig joint 2, a limiting block 404 and the outer tube 1 form a sliding structure through a limiting groove 405, one side of the limiting block 404 is fixedly connected to the outer wall of the semi-inner tube 401, the outer wall of the first positioning block 406 is fixedly connected to the inner wall of the outer tube 1, teeth are evenly provided on one end of the semi-inner tube 401 close to the drill bit 5, a clamping groove is provided inside the connecting seat 408, and the connecting seat 408 is fixed to the clamping plate 307 through the clamping groove.

[0026] Reference Figure 2 and Figure 3As shown, the semi-inner tube body 401 is moved to the inside of the outer tube body 1, and the semi-inner tube body 401 drives the limit block 404 to move inside the limit groove 405. When the semi-inner tube body 401 drives the second positioning block 407 to conflict with the first positioning block 406, it is convenient for the fixing structure 3 to fix the semi-inner tube body 401. When sampling, the baffle 402 will rotate to one side of the semi-inner tube body 401. After sampling, the baffle 402 will rotate to one side of the fixing block 403 to avoid leakage of samples inside the semi-inner tube body 401.

[0027] A fixing structure 3 is provided at one end of the outer tube body 1 near the drill joint 2. The fixing structure 3 includes a fixing plate 301, a servo motor 302, a drive shaft 303, a slide groove 304, a slider 305, a movable plate 306, a clamping plate 307 and a hinge rod 308. The fixing plate 301 is fixed to one side of the outer tube body 1 near the drill joint 2. The drive shaft 303 runs through the middle of the fixing plate 301. The servo motor 302 is installed on one side of the fixing plate 301 at one end of the drive shaft 303. Both sides of the other end of the drive shaft 303 are hinged with hinges. The connecting rod 308 and the fixed plate 301 are both provided with sliding grooves 304 at both ends thereof, and the sliding grooves 304 are both provided with sliders 305, one side of the sliders 305 extends to the outside of the fixed plate 301 and is fixed with a movable plate 306, and one end of the movable plate 306 is fixed with a clamping plate 307, one end of the driving shaft 303 is fixedly connected to the output end of the servo motor 302, and the slider 305 and the fixed plate 301 form a sliding structure through the sliding groove 304, and the end of the hinged rod 308 away from the driving shaft 303 is hinged to the movable plate 306.

[0028] Reference Figure 4 and Figure 5 As shown, the servo motor 302 is started, and the servo motor 302 drives the driving shaft 303 to rotate. The driving shaft 303 drives the movable plate 306 to move through the hinge rod 308. The movable plate 306 drives the slider 305 to move inside the slide groove 304. Under the action of the slider 305, the stability of the movable plate 306 during movement is enhanced. The movable plate 306 drives the snap-on plate 307 to move to the inside of the connecting seat 408, thereby enhancing the stability of the semi-inner tube body 401 during sampling. When the snap-on plate 307 moves to the outside of the connecting seat 408, it is convenient to open the semi-inner tube body 401 to take out the sample.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An advanced double-action double-tube coring device, comprising an outer tube body (1) and a drilling rig joint (2); Features: A drill joint (2) is fixed to one end of the outer tube body (1), and a drill bit (5) is fixed to the other end of the outer tube body (1); A limiting structure (4) is arranged inside the outer tube body (1), and the limiting structure (4) comprises a semi-inner tube body (401), a baffle (402), a fixing block (403), a limiting block (404), a limiting groove (405), a first positioning block (406), a second positioning block (407) and a connecting seat (408). The semi-inner tube body (401) is evenly provided with the interior of the outer tube body (1), and the interior of the outer tube body (1) on one side of the semi-inner tube body (401) is provided with a limiting groove (405), and the interior of the limiting groove (405) is provided with A limiting block (404) is provided, a second positioning block (407) is fixed on the outer wall of the half inner tube (401) at one end close to the drill joint (2), a first positioning block (406) is provided on one side of the second positioning block (407), the baffle (402) is hinged to the inside of the half inner tube (401) at one side of the drill bit (5), a fixing block (403) is fixed inside the half inner tube (401) at one side of the baffle (402), and a connecting seat (408) is fixed on one end of the half inner tube (401) close to the drill joint (2); A fixing structure (3) is provided at one end of the outer tube body (1) close to the drilling rig joint (2), and the fixing structure (3) comprises a fixing plate (301), a servo motor (302), a driving shaft (303), a slide groove (304), a slider (305), a moving plate (306), a clamping plate (307) and a hinge rod (308). The fixing plate (301) is fixed to one side of the outer tube body (1) close to the drilling rig joint (2), and a driving shaft (303) runs through the middle of the fixing plate (301). A servo motor (302) is installed on one side of a fixed plate (301) at one end of the shaft (303), and hinge rods (308) are hinged on both sides of the other end of the driving shaft (303). Slide grooves (304) are provided at both ends inside the fixed plate (301), and sliders (305) are provided inside the slide grooves (304). One side of the sliders (305) extends to the outside of the fixed plate (301) and is fixed with a movable plate (306), and one end of the movable plate (306) is fixed with a clamping plate (307).

2. The advanced double-action double-tube coring device according to claim 1, characterized in that: One end of the driving shaft (303) is fixedly connected to the output end of the servo motor (302), the sliding block (305) and the fixed plate (301) form a sliding structure through a sliding groove (304), and one end of the hinge rod (308) away from the driving shaft (303) is hinged to the movable plate (306).

3. The advanced double-action double-tube coring device according to claim 1, characterized in that: The limiting block (404) and the outer tube body (1) form a sliding structure via a limiting groove (405), and one side of the limiting block (404) is fixedly connected to the outer wall of the semi-inner tube body (401).

4. The advanced double-action double-tube coring device according to claim 1, characterized in that: The outer wall of the first positioning block (406) is fixedly connected to the inner wall of the outer tube body (1), and teeth are evenly arranged at one end of the semi-inner tube body (401) close to the drill bit (5).

5. The advanced double-action double-tube coring device according to claim 1, characterized in that: A clamping groove is provided inside the connection seat (408), and the connection seat (408) is fixed to the clamping plate (307) via the clamping groove.

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