A drilling device for directional branch drilling

Abstract

The present invention discloses a drilling device for directional branch drilling, which relates to the field of geological drilling and includes a spliced ​​pipe, wherein a first connecting portion is provided at one end of the spliced ​​pipe, and a second connecting portion is symmetrically provided at the other end of the spliced ​​pipe. Adjacent spliced ​​pipes are connected by a hinge assembly provided at the first connecting portion, and a limit torsion spring is provided at the hinge between the first connecting portion and the adjacent spliced ​​pipe. An electric bending assembly is also provided to cooperate with the connection between the two adjacent spliced ​​pipes. When adjacent spliced ​​pipes are connected, the first connecting portion cooperates with the second connecting portion and is connected through the hinge assembly, resulting in a secure connection. The electric bending assembly can cause the spliced ​​pipe to bend at the splicing portion and cause the limit torsion spring to bend, thereby facilitating the spliced ​​pipe equipped with sensor material to bend and enter the directional drilling hole, and facilitating the equipment to pass through the bend of the directional drilling hole. After the detection is completed, the electric bending assembly can be restored to its original state, and the limit torsion spring causes the device to reset, thereby reducing the failure rate of the equipment.

Description

Technical Field

[0001] The present invention relates to the field of geological drilling, and more particularly to the field of directional branch drilling technology. Background Art

[0002] A drilling rig is a mechanical device used to drill underground and obtain physical geological data during the exploration or development of mineral resources (including solid, liquid, and gaseous ores). Also known as a drilling machine, its primary function is to break the rock at the bottom of a hole and lower or extract the equipment within. It can be used to obtain rock cores, ore cores, rock cuttings, gaseous and liquid samples to explore underground geology and mineral resources. As my country's coal mining continues to deepen, complex geological structures and hidden water hazards are increasingly impacting coal mine safety. This is especially true during coal mine tunneling, where complex and unknown geological conditions present a greater demand for advanced and precise geological support technologies. Underground coal mine tunneling must ensure safety, and achieving rapid tunneling requires this to be a top priority. This involves technologies such as rapid tunneling, advanced detection, and integrated control. Advanced detection, ensuring safe and rapid tunneling, requires both accurate and effective geological information and minimal interference with tunneling and support equipment systems.

[0003] Directional drilling was first used in oil drilling in the 1930s. Its application in geological drilling began in the early 1950s. With the development of new continuous whipstocks and small-diameter screw drills (motors), and the application of diamond drill bits and inclinometers while drilling, controlled directional drilling has become one of the most advanced modern drilling technologies. Because controlled directional drilling technology provides accurate geological data, saves on-site space and drilling workload, and accelerates geological exploration, it has been widely promoted and applied. In addition to drilling inclination for directional drilling purposes, inclination is also often used to address in-hole accidents, avoiding difficult-to-handle accident sections and deflecting the borehole to continue drilling. Inclination is also often used to obtain additional cores from the ore layer when the core recovery rate is low or no core is obtained.

[0004] In tunnel or underground drilling detection projects, whether it is the advance prediction of hidden dangers or the directional detection of hidden resources, various existing geophysical exploration technologies, including elastic waves, electrical methods or electromagnetic methods, require the installation of sensors in directional boreholes to receive the excitation responses of various targets through array sensors. However, in addition to vertically downward drilling, separate sensors or wall-mounted systems must have delivery and protection devices. Due to construction site limitations, the delivery and protection devices in the existing technology cannot be professionally manufactured. They are often only made of PVC pipes, and their structural strength is poor. For boreholes produced by directional branch drilling, there are often multiple branches inside the borehole, and the borehole will bend when passing through the branches. This brings problems to the insertion of sensor materials. The delivery and protection devices are prone to pipe detachment and bending at the bends of the directional borehole, causing damage to the equipment. Summary of the Invention

[0005] The purpose of the present invention is to solve the above technical problems and provide a drilling device for directional branch drilling.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A drilling device for directional branch drilling includes a splicing tube, one end of the splicing tube is provided with an arc-shaped first connecting portion arranged to fit the splicing tube, and the other end of the splicing tube is symmetrically provided with a second connecting portion. Adjacent splicing tubes are connected by a hinge assembly arranged at the first connecting portion, and a limiting torsion spring is provided at the hinge between the first connecting portion and the adjacent splicing tube. The limiting torsion spring has a tendency to urge the first connecting portion and the adjacent splicing tube to maintain a horizontal position. An electric bending assembly is also provided to cooperate with the connection between the two adjacent sections of the splicing tube.

[0008] Through the above scheme, when adjacent splicing pipes are connected, the first connecting part cooperates with the second connecting part and is connected through a hinge assembly, and the connection is firm, avoiding the problem of easy falling off of traditional screw connections. The limiting torsion spring prompts the splicing pipes to maintain verticality, and the electric bending assembly can prompt the splicing pipe to bend at the splicing point and prompt the limiting torsion spring to bend, so that the splicing pipe equipped with the sensor material can bend into the directional drilling hole, and the equipment can pass through the bending part of the directional drilling hole. When the detection is completed, the electric bending assembly can be restored to its original state, and the limiting torsion spring prompts the device to reset, which reduces the failure rate of the equipment.

[0009] Furthermore, the hinge assembly includes an "L"-shaped connecting key hingedly connected to the end of the first connecting part, and a corresponding embedding groove is provided on the second connecting part at the other end of the splicing tube away from the first connecting part, and the two ends of the limiting torsion spring are respectively fixedly connected to the end of the first connecting part and the second connecting part.

[0010] Through the above solution, when connecting, the connecting key is embedded in the embedding groove to complete the connection and fixation, and at the same time a limiting torsion spring is provided to maintain the first connecting part and the second connecting part to be level.

[0011] Furthermore, the connecting key and the embedding groove are fixed by bolts.

[0012] Through the above solution, the bolt fixation is more secure.

[0013] Furthermore, the electric bending assembly includes a delivery tube that slides on the spliced ​​tube. The delivery tube is a structure that is connected to the middle part by a universal joint and can be bent along the middle part. The tail of the delivery tube is provided with a cable connected to the power supply. A cable passage is provided inside the delivery tube. A hinged push plate is provided in the middle of the delivery tube. A tension torsion spring is provided at the hinge between the push plate and the delivery tube. A pushing assembly is provided on the delivery tube to cause the push plate to lift.

[0014] Through the above solution, a delivery tube is provided, and a universal joint is provided at the same time to facilitate bending of the delivery tube along the middle. Half of the delivery tube abuts against an adjacent splicing tube on one side. By providing a pushing component, the push plate can be lifted, and the push plate further abuts against the splicing tube on the other side and pushes the splicing tube on the other side to bend, thereby facilitating the splicing tube to enter the curved hole.

[0015] Furthermore, the pushing assembly includes at least one set of electric winding drums arranged in the delivery tube, and a steel cable is connected to the upper end of the push plate, and the steel cable is connected to the electric winding drum.

[0016] Through the above solution, the steel cable can be retracted by the electric winding drum, and the steel cable drives the push plate to rise. When the bending is completed, the tensioning torsion spring drives the push plate to reset, and at the same time drives the steel cable to reset.

[0017] Furthermore, an elastic metal sheet is provided in the delivery tube, and an iron limit block is provided at the end of the elastic metal sheet facing outward. An adsorption electromagnet is provided in the delivery tube opposite to the limit block, which adsorbs the limit block and causes the elastic metal sheet to bend inward. A snap ring that cooperates with the limit block is provided in the splicing tube.

[0018] Through the above solution, when the clamping ring position is reached, the adsorption electromagnet is turned off, and the limit block pops out and abuts against the clamping ring under the action of the elastic metal sheet, completing the fixed positioning of the device.

[0019] Furthermore, the elastic metal sheet, the limiting block and the adsorption electromagnet are provided in two groups in the delivery tube and are evenly distributed in the delivery tube.

[0020] Through the above solution, the fixation is more secure.

[0021] Furthermore, movable rollers are provided at both ends of the delivery tube.

[0022] Through the above solution, the movable roller is provided to reduce the movement resistance of the delivery tube.

[0023] Furthermore, a camera is provided at the front end of the broadcasting tube, and the camera is connected to the outside via a cable.

[0024] Through the above solution, a camera is set up to facilitate observation of the internal position of the splicing tube.

[0025] Furthermore, a positioning armature is provided at the clamping ring in the spliced ​​tube, and a corresponding positioning electromagnet plate is provided at the end of the delivery tube.

[0026] Through the above solution, a positioning armature is provided, and the positioning and fixation of the radio tube can be achieved by opening the positioning electromagnet plate and fixing it with the positioning armature.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The present invention has a simple structure. When adjacent splicing pipes are connected, the first connecting part cooperates with the second connecting part and is connected through a hinge assembly. The connection is firm and avoids the problem of easy falling off of traditional rotational connections. The limit torsion spring forces the splicing pipes to maintain verticality. The electric bending assembly can cause the splicing pipe to bend at the splicing point and cause the limit torsion spring to bend, making it easier for the splicing pipe equipped with the sensor material to bend and enter the directional drilling hole, and for the equipment to pass through the bend of the directional drilling hole. After the detection is completed, the electric bending assembly can be restored to its original state, and the limit torsion spring causes the device to reset, thereby reducing the failure rate of the equipment.

[0029] 2. A delivery tube is provided, and a universal joint is provided to facilitate bending of the delivery tube along the middle. Half of the delivery tube abuts against the adjacent splicing tube on one side. By providing a pushing component, the push plate can be lifted. The push plate further abuts against the splicing tube on the other side and pushes the splicing tube on the other side to bend, making it easier for the splicing tube to enter the bending hole. The electric winding drum can retract the steel cable, which drives the push plate to lift. When the bending is completed, the tensioning torsion spring drives the push plate to reset, and at the same time drives the steel cable to reset;

[0030] 3. When the clamping ring position is reached, the adsorption electromagnet is closed, and the limit block pops out and contacts the clamping ring under the action of the elastic metal sheet, completing the fixed positioning of the device. The positioning armature is set, and the positioning electromagnet plate can be opened to fix it with the positioning armature to achieve the positioning and fixation of the delivery tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the splicing tube and the delivery tube portion of the present invention;

[0032] Figure 2 It is a cross-sectional view of the spliced ​​pipe and a schematic structural diagram of the delivery pipe portion of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the delivery tube part of the present invention.

[0034] Figure numerals: 11, splicing tube; 12, first connecting part; 13, second connecting part; 14, limiting torsion spring; 15, connecting key; 16, embedding groove; 17, elastic metal sheet; 18, limiting block; 19, adsorption electromagnet; 20, snap ring; 21, positioning armature; 22, positioning electromagnet plate; 23, moving roller; 24, camera; 25, delivery tube; 26, push plate; 27, cable passing channel; 28, tensioning torsion spring; 29, electric winding drum; 30, steel cable. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figures 1 to 3 As shown, this embodiment provides a drilling device for directional branch drilling, including a splicing tube 11, wherein one end of the splicing tube 11 is provided with an arc-shaped first connecting portion 12 that is arranged to fit the splicing tube 11, and the other end of the splicing tube 11 is symmetrically provided with a second connecting portion 13. Adjacent splicing tubes 11 are connected by a hinge assembly provided on the first connecting portion 12. A limit torsion spring 14 is provided at the hinge joint between the first connecting portion 12 and the adjacent splicing tube 11. The limit torsion spring 14 has a tendency to urge the first connecting portion 12 and the adjacent splicing tube 11 to maintain a horizontal position. An electric bending assembly is also provided to cooperate with the connection between the two adjacent splicing tubes 11. The hinge assembly includes an "L"-shaped connecting key 15 hingedly connected to the end of the first connecting portion 12. A corresponding embedding groove 16 is provided on the second connecting portion 13 of the splicing tube 11, which is away from the other end of the first connecting portion 12. The two ends of the limit torsion spring 14 are fixedly connected to the end of the first connecting portion 12 and the second connecting portion 13, respectively. The connecting key 15 and the embedding groove 16 are fixed by bolts.

[0039] Therefore, when connecting, the connecting key 15 is embedded in the embedding groove 16 to complete the connection and fixation. At the same time, a limiting torsion spring 14 is set to maintain the first connecting part 12 and the second connecting part 13 to remain horizontal. The first connecting part 12 cooperates with the second connecting part 13 and is connected through a hinge assembly. The connection is firm, avoiding the problem of easy falling off of traditional screw connections. The limiting torsion spring 14 prompts the splicing pipe 11 to remain vertical, and the electric bending assembly can prompt the splicing pipe 11 to bend at the splicing point and prompt the limiting torsion spring 14 to bend, so that the splicing pipe 11 equipped with the sensor material can bend into the directional drilling hole, so that the equipment can pass through the bending part of the directional drilling hole. After the detection is completed, the electric bending assembly can be restored to its original state, and the limiting torsion spring 14 prompts the device to reset, which reduces the failure rate of the equipment.

[0040] Reference Figures 1 to 3 The electric bending assembly includes a delivery tube 25 that slides on the splicing tube 11. The delivery tube 25 is a structure that can be bent along the middle part by a universal joint in the middle part. A cable connected to the power supply is provided at the tail end of the delivery tube 25 (not shown in the figure). A cable passing channel 27 is provided inside the delivery tube 25. A hinged push plate 26 is provided in the middle part of the delivery tube 25. A tensioning torsion spring 28 is provided at the hinge between the push plate 26 and the delivery tube 25. A pushing assembly for lifting the push plate 26 is provided on the delivery tube 25. The pushing assembly includes at least one group of electric winding drums 29 provided in the delivery tube 25. A steel cable 30 is connected to the upper end of the push plate 26, and the steel cable 30 is connected to the electric winding drum 29. A delivery tube 25 is provided, and a universal joint is provided to facilitate bending of the delivery tube 25 along the middle. Half of the delivery tube 25 abuts against the adjacent splicing tube 11 on one side. By providing a pushing component, the steel cable 30 can be retracted by the electric winding drum 29, and the steel cable 30 drives the push plate 26 to rise. When the bending is completed, the tensioning torsion spring 28 drives the push plate 26 to reset, and at the same time drives the steel cable 30 to reset, which can prompt the push plate 26 to rise. Further, the push plate 26 abuts against the splicing tube 11 on the other side and pushes the splicing tube 11 on the other side to bend, so that the splicing tube 11 can enter the bending hole easily.

[0041] Reference Figures 1 to 3To facilitate positioning of the delivery tube 25 within the splicing tube 11, an elastic metal sheet 17 is installed within the delivery tube 25. An outward-facing iron stopper 18 is located at the end of the elastic metal sheet 17. An attraction electromagnet 19 is located within the delivery tube 25, directly opposite the stopper 18, to attract the stopper 18 and force the elastic metal sheet 17 to bend inward. A snap ring 20 is located within the splicing tube 11, engaging the stopper 18. Two sets of elastic metal sheet 17, stopper 18, and attraction electromagnet 19 are located within the delivery tube 25, evenly spaced within the splicing tube 11. When the stopper 20 is reached, the attraction electromagnet 19 is deactivated, and the stopper 18, under the action of the elastic metal sheet 17, pops out and engages with the snap ring 20, completing the device's secure positioning. A positioning armature 21 is provided at the clamping ring 20 in the splicing tube 11, and a corresponding positioning electromagnet plate 22 is provided at the end of the delivery tube 25. The positioning armature 21 can be fixed to the positioning armature 21 by opening the positioning electromagnet plate 22 to achieve positioning and fixation of the delivery tube 25.

[0042] Reference Figure 3 In order to facilitate the delivery tube 25 to enter the splicing tube 11, moving rollers 23 are provided at both ends of the delivery tube 25. The provision of the moving rollers 23 reduces the movement resistance of the delivery tube 25. A camera 24 is provided at the front end of the delivery tube 25. The camera 24 is connected to the outside through a cable to facilitate the observation of the internal position of the splicing tube 11.

[0043] Implementation principle: When adjacent splicing pipes 11 are connected, the first connecting part 12 cooperates with the second connecting part 13 and is connected through a hinge assembly. The connection is firm, avoiding the problem of easy falling off of the traditional screw connection. The limit torsion spring 14 prompts the splicing pipes 11 to maintain verticality, and the electric bending assembly can prompt the splicing pipe 11 to bend at the splicing point and prompt the limit torsion spring 14 to bend, so that the splicing pipe 11 equipped with the sensor material can be bent into the directional drilling hole, which is convenient for the equipment to pass through the directional drilling bend. When the detection is completed, the electric bending assembly can be restored to its original state, and the limit torsion spring 14 prompts the device to reset, which reduces the risk of damage. To reduce the failure rate of equipment, a delivery tube 25 is provided, and a universal joint is provided to facilitate bending of the delivery tube 25 along the middle. Half of the delivery tube 25 abuts against the adjacent splicing tube 11 on one side. By providing a pushing component, the push plate 26 can be lifted. Further, the push plate 26 abuts against the splicing tube 11 on the other side and pushes the splicing tube 11 on the other side to bend, so that the splicing tube 11 can enter the curved hole. The electric winding drum 29 can retract the steel cable 30, and the steel cable 30 drives the push plate 26 to lift. When the bending is completed, the tensioning torsion spring 28 drives the push plate 26 to reset, and at the same time drives the steel cable 30 to reset.

Claims

1. A drilling device for directional branch drilling, characterized in that: The invention comprises a splicing tube (11), wherein one end of the splicing tube (11) is provided with an arc-shaped first connecting portion (12) arranged to fit the splicing tube (11), and the other end of the splicing tube (11) is symmetrically provided with a second connecting portion (13), and adjacent splicing tubes (11) are connected by a hinge assembly arranged at the first connecting portion (12), and a limiting torsion spring (14) is provided at the hinged joint between the first connecting portion (12) and the adjacent splicing tube (11), and the limiting torsion spring (14) has a tendency to urge the first connecting portion (12) and the adjacent splicing tube (11) to maintain a horizontal position, and an electric bending assembly is also provided to cooperate with the connection between two adjacent sections of the splicing tube (11); The hinge assembly includes an L-shaped connecting key (15) hingedly connected to the end of the first connecting portion (12); a second connecting portion (13) on the other end of the splicing tube (11) away from the first connecting portion (12) is provided with a corresponding embedding groove (16); and two ends of the limiting torsion spring (14) are fixedly connected to the end of the first connecting portion (12) and the second connecting portion (13) respectively. The connecting key (15) and the embedding groove (16) are fixed by bolts; The electric bending assembly includes a delivery tube (25) that slides on the splicing tube (11). The delivery tube (25) is a structure that can be bent along the middle part by connecting the middle part through a universal joint. The tail of the delivery tube (25) is provided with a cable connected to a power supply. The inside of the delivery tube (25) is provided with a cable passing channel (27). The middle part of the delivery tube (25) is provided with a hinged push plate (26). The hinged part between the push plate (26) and the delivery tube (25) is provided with a tensioning torsion spring (28). The delivery tube (25) is provided with a pushing assembly that causes the push plate (26) to lift.

2. The drilling equipment for directional branch drilling according to claim 1, characterized in that: The pushing assembly includes at least one electric winding drum (29) arranged in the delivery tube (25), a steel cable (30) connected to the upper end of the push plate (26), and the steel cable (30) is connected to the electric winding drum (29).

3. The drilling equipment for directional branch drilling according to claim 2, characterized in that: An elastic metal sheet (17) is provided in the delivery tube (25), and an iron limit block (18) facing outward is provided at the end of the elastic metal sheet (17). An adsorption electromagnet (19) is provided in the delivery tube (25) at a position opposite to the limit block (18) to adsorb the limit block (18) and cause the elastic metal sheet (17) to bend inward. A snap ring (20) is provided in the splicing tube (11) to cooperate with the limit block (18).

4. The drilling equipment for directional branch drilling according to claim 3, characterized in that: The elastic metal sheet (17), the limiting block (18) and the adsorption electromagnet (19) are provided in two groups in the delivery tube (25) and are evenly distributed in the delivery tube (25).

5. The drilling equipment for directional branch drilling according to claim 1, characterized in that: The two ends of the delivery tube (25) are provided with movable rollers (23).

6. The drilling equipment for directional branch drilling according to claim 1, characterized in that: A camera (24) is provided at the front end of the broadcasting tube (25), and the camera (24) is connected to the outside via a cable.

7. The drilling equipment for directional branch drilling according to claim 3, characterized in that: A positioning armature (21) is provided at the clamping ring (20) in the spliced ​​tube (11), and a corresponding positioning electromagnet plate (22) is provided at the end of the delivery tube (25).

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