Angle adjusting device for directional drilling
By combining a servo motor-driven threaded rod and a dial, precise angle adjustment and rapid drill bit replacement are achieved in directional drilling, solving the problem of inconvenient angle adjustment during drilling and improving pipeline laying efficiency and drilling stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHUANJIAO ROAD & BRIDGE
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-23
AI Technical Summary
Existing directional drilling methods make it difficult to adjust the angle during drilling, causing the borehole to deviate from the underground pipeline and reducing the efficiency of pipeline laying.
The device uses a servo motor to drive the threaded rod, which in turn drives the sliding block and connecting plate. Combined with a dial, it achieves precise angle adjustment. It is equipped with a drive motor and a No. 1 motor to stabilize the movement and rotation of the drill rod and drill bit. It is also equipped with a foot brake wheel to ensure that the device is fixed in position.
It enables precise angle adjustment of directional drilling, avoids drilling deviation, improves pipeline laying efficiency, and supports quick drill bit replacement to adapt to different drilling needs.
Smart Images

Figure CN224396397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of horizontal directional drilling technology, specifically an angle adjustment device for directional drilling. Background Technology
[0002] Directional drilling is a trenchless drilling technology that uses specialized equipment to control the trajectory and depth of the drill bit, enabling drilling through underground obstacles along a pre-set path. In municipal applications, small directional drills are needed in areas unsuitable for excavation, such as when laying water pipes or cables.
[0003] A Chinese patent with authorization announcement number CN222350638U discloses a horizontal directional drill for surveying, including a directional drilling device. The directional drilling device consists of a power mechanism, a mounting frame, a second propulsion mechanism, and a first propulsion mechanism. One side of the second propulsion mechanism is rotatably mounted on the upper side of the mounting frame. A rotating mechanism is installed between the middle of the rear end of the second propulsion mechanism and the mounting frame. A base is installed at one end of the second propulsion mechanism, and a positioning cylinder is installed on one side of the base. The base and the mounting frame are fixed together by a fixing mechanism. The bottom end of one side of the first propulsion mechanism is installed on the upper side of the second propulsion mechanism. This utility model reduces the volume of the directional drilling device by using the first propulsion mechanism and the second propulsion mechanism to propel downwards. At the same time, it allows for quick installation and disassembly of the directional drilling device during use, reducing assembly and disassembly time.
[0004] However, the aforementioned directional drilling still has some problems. In practical applications, it is not convenient to adjust the angle of the directional drill, which may cause the drill to penetrate other underground pipelines and cause the drill to deviate, thereby reducing the efficiency of pipeline laying. Therefore, an angle adjustment device for directional drilling is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes an angle adjustment device for directional drilling.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The directional drilling angle adjustment device of this utility model includes a base plate, a servo motor mounted on one side of the base plate, a threaded rod mounted on the output end of the servo motor, an upward-opening sliding groove inside the top side of the base plate, a sliding block slidably mounted inside the sliding groove, a threaded hole inside the sliding block, one end of the threaded rod passing through the threaded hole and rotatably mounted inside one side of the sliding groove, a support base mounted on the top side of the sliding block, a connecting plate mounted inside the support base via a pin, and a mounting base mounted on one end of the top side of the base plate. A rotating shaft is mounted through the directional drill bit. A mounting plate is mounted on the outer side of the rotating shaft. A connecting seat is mounted on the bottom side of one end of the mounting plate. One end of the connecting plate is mounted on the outer side of the connecting seat via a pin. A scale is mounted on one side of the mounting seat. An indicator needle pointing to the scale is mounted on one end of the rotating shaft. A servo motor drives a threaded rod to rotate, which moves a sliding block. This, in turn, pulls the mounting plate around the rotating shaft via the connecting plate. The indicator needle indicates the angle on the scale, enabling precise angle adjustment of the directional drill bit. This allows the directional drill bit to drill at different angles, avoiding drilling deviation and improving the efficiency of pipeline laying.
[0007] Preferably, a drive motor is mounted on one side of the mounting plate, and a lead screw is mounted on the output end of the drive motor. A slide rail is provided inside the top side of the mounting plate, and a movable block is slidably mounted inside the slide rail. A threaded hole is provided inside the movable block, and one end of the lead screw passes through the threaded hole and is rotatably mounted inside one side of the slide rail. When the drive motor is working, it drives the lead screw to rotate, thereby moving the movable block within the slide rail. This enables flexible movement of the directional drilling assembly, provides stable power support for drilling operations, ensures that the directional drill can accurately reach the designated position for drilling, and guarantees the smooth progress of drilling operations.
[0008] Preferably, a No. 1 motor is installed on the top side of the movable block, and a drill rod is installed at the output end of the No. 1 motor. A support plate is installed at one edge of the top side of the mounting plate, and a rod hole is opened inside the support plate. One end of the drill rod passes through the rod hole. After the No. 1 motor is started, it directly drives the drill rod to drive the drill bit to rotate at high speed, which improves the transmission efficiency and enables drilling operations to be carried out quickly and effectively.
[0009] Preferably, a rectangular groove is formed inside one side of the drill rod, and an installation hole is formed through the rectangular groove at one end of the drill rod. An installation ring is slidably installed on the outer side of one end of the drill rod. A rectangular block is installed on the inner wall of one side of the installation ring. A limiting hole with the same radius as the installation hole is formed inside the rectangular block. The limiting hole passes through the installation ring. A drill bit is installed on one side of the installation ring. A locking screw is rotatably installed inside the limiting hole through the installation hole. A nut is installed at one end of the locking screw. When the drill bit needs to be replaced, simply loosen the nut and remove the locking screw to slide the installation ring and drill bit off the drill rod. When installing a new drill bit, the rectangular block is locked inside the rectangular groove, and then the locking screw is rotated in the opposite direction. This facilitates quick replacement of drill bits to adapt to different drilling needs.
[0010] Preferably, a rotating shaft is rotatably installed at each of the four corners of the bottom side of the base plate, and a mounting bracket is installed at the bottom of each rotating shaft. A foot brake wheel is installed inside the mounting bracket through a pin. When it is necessary to move the directional drill, simply push the device, and the foot brake wheel can easily move the device to the designated position. After reaching the position, stepping on the brake assembly can fix the position of the device and prevent it from moving during operation.
[0011] Preferably, a control panel is installed on one side of the base plate. The control panel is electrically connected to the electrical components inside the device and is used to operate and control the electrical components inside the device. Operators can centrally control the start, stop, speed and direction parameters of electrical components such as servo motors, drive motors and No. 1 motor through the control panel, which is simple and quick to operate.
[0012] The advantages of this utility model are:
[0013] 1. The present invention starts a servo motor, the output end of which drives the threaded rod to rotate in the slide groove of the base plate, drives the sliding block to move horizontally, drives the support seat to move, the support seat pulls the connecting plate through the pin shaft, the connecting plate drives the mounting plate to rotate around the rotating shaft inside the mounting seat through the connecting seat, the indicator needle rotates with the shaft, and displays the real-time angle on the scale. After reaching the target angle, the motor is turned off, realizing precise angle adjustment of directional drilling, avoiding drilling deviation, and improving pipeline laying efficiency;
[0014] 2. When the drill bit needs to be replaced, loosen the nut at one end of the locking screw, pull out the locking screw to disengage it from the mounting hole and the limiting hole, slide the mounting ring to allow the rectangular block to slide out of the rectangular groove of the drill rod, remove the old drill bit, and when installing the new drill bit, put the mounting ring of the new drill bit on the end of the drill rod to make the rectangular block fit into the rectangular groove, align the limiting hole and the mounting hole, insert the locking screw and tighten the nut to fix it, thus realizing the quick replacement of drill bits to adapt to different drilling needs. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;
[0017] Figure 2 This is a schematic diagram of the angle adjustment component structure;
[0018] Figure 3 This is a schematic diagram of the directional drilling moving component structure;
[0019] Figure 4 This is a schematic diagram of the main structure of a directional drilling rig.
[0020] Figure 5 A schematic diagram of the component structure for replacing the drill bit.
[0021] In the diagram: 1. Base plate; 2. Servo motor; 201. Threaded rod; 202. Slide groove; 203. Sliding block; 204. Support base; 205. Connecting plate; 206. Mounting base; 207. Rotating shaft; 208. Mounting plate; 209. Connecting base; 210. Dial; 211. Indicator needle; 3. Drive motor; 301. Lead screw; 302. Slide rail; 303. Moving block; 4. Motor No. 1; 401. Drill rod; 402. Support plate; 5. Rectangular groove; 501. Mounting hole; 502. Mounting ring; 503. Rectangular block; 504. Limiting hole; 505. Drill bit; 506. Locking screw; 507. Nut; 6. Rotating shaft; 601. Mounting bracket; 602. Wheel; 7. Control panel. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] Please see Figure 1-3As shown, an angle adjustment device for directional drilling includes a base plate 1. A servo motor 2 is mounted on one side of the base plate 1, and a threaded rod 201 is mounted on the output end of the servo motor 2. An upward-opening sliding groove 202 is formed inside the top side of the base plate 1. A sliding block 203 is slidably mounted inside the sliding groove 202, and a threaded hole is formed inside the sliding block 203. One end of the threaded rod 201 passes through the threaded hole and is rotatably mounted inside one side of the sliding groove 202. A support base 204 is mounted on the top side of the sliding block 203. The support base 204 has an inner... The base plate 1 is fitted with a connecting plate 205 via a pin. A mounting base 206 is mounted on one of the top sides of the base plate 1. A rotating shaft 207 is rotatably mounted through the interior of the mounting base 206. A mounting plate 208 is mounted on the outside of the rotating shaft 207. A connecting base 209 is mounted on the bottom side of one end of the mounting plate 208. One end of the connecting plate 205 is mounted on the outside of the connecting base 209 via a pin. A scale 210 is mounted on one side of the mounting base 206. An indicator needle 211 pointing to the scale 210 is mounted on one end of the rotating shaft 207.
[0024] A rotating shaft 6 is rotatably installed at each of the four corners of the bottom side of the base plate 1. A mounting bracket 601 is installed at the bottom of each rotating shaft 6. A foot brake wheel 602 is installed inside the mounting bracket 601 through a pin.
[0025] A control panel 7 is installed on one side of the base plate 1. The control panel 7 is electrically connected to the electrical components inside the device and is used to control the operation of the electrical components inside the device. During operation, in practical applications, it is not convenient to adjust the angle of the directional drill, which may cause the drill to penetrate other underground pipelines and cause the drill to deviate, thereby reducing the efficiency of pipeline laying. When the device needs to be moved, push the base plate 1, and the rotating shafts 6 at the four corners of its bottom side will drive the foot brake wheels 602 in the mounting frame 601 to roll, moving the device to the working position. After reaching the position, step on the brake assembly of the foot brake wheel 602 to fix the position of the device and prevent it from sliding during operation.
[0026] During pipeline laying, according to the preset angle, the operator starts the servo motor 2 through the control panel 7. Its output end drives the threaded rod 201 to rotate in the groove 202 of the base plate 1, which in turn drives the sliding block 203 to move horizontally along the groove 202, thereby driving the top support seat 204 to move synchronously. The support seat 204 pulls the connecting plate 205 through the pin shaft. The other end of the connecting plate 205 drives the mounting plate 208 to rotate around the rotating shaft 207 in the mounting seat 206 through the connecting seat 209. At the same time, the indicator needle 211 rotates with the rotating shaft 207, displaying the real-time angle on the scale 210 to ensure precise adjustment. After the target angle is reached, the servo motor 2 is turned off, realizing precise angle adjustment of the directional drill. This allows the directional drill to drill at different angles, avoiding drilling deviation and improving the efficiency of pipeline laying.
[0027] Please see Figure 1-5 As shown, a drive motor 3 is installed on one side of the mounting plate 208, and a lead screw 301 is installed at the output end of the drive motor 3. A slide rail 302 is provided inside the top side of the mounting plate 208, and a movable block 303 is slidably installed inside the slide rail 302. A threaded hole is provided inside the movable block 303, and one end of the lead screw 301 passes through the threaded hole and is rotatably installed inside one side of the slide rail 302.
[0028] A motor 4 is installed on the top side of the movable block 303. A drill rod 401 is installed at the output end of the motor 4. A support plate 402 is installed at one edge of the top side of the mounting plate 208. A rod hole is opened inside the support plate 402. One end of the drill rod 401 is set through the rod hole.
[0029] A rectangular groove 5 is formed inside one side of the drill rod 401. One end of the drill rod 401 passes through the rectangular groove 5 and has a mounting hole 501. A mounting ring 502 is slidably mounted on the outer side of one end of the drill rod 401. A rectangular block 503 is mounted on the inner wall of one side of the mounting ring 502. A limiting hole 504 with the same radius as the mounting hole 501 is formed inside the rectangular block 503. The limiting hole 504 passes through the mounting ring 502. A drill bit 505 is mounted on one side of the mounting ring 502. A locking screw 506 is rotatably mounted inside the limiting hole 504, passing through the mounting hole 501. A nut 507 is mounted on one end of the locking screw 506. During operation, directional drilling is a trenchless drilling technology. Through specialized equipment, the trajectory and depth of the drill bit 505 are controlled to achieve drilling along a preset path through underground obstacles. In the field of public works, a small directional drill is needed in areas where excavation is not suitable, such as for laying water pipes or cables. After the angle of the directional drill is adjusted, the drive motor 3 is started through the control panel 7. Its output end drives the lead screw 301 to rotate in the slide rail 302, thereby driving the movable block 303 to slide along the slide rail 302 and moving the top drill assembly until the drill rod 401 is aligned with the drilling position. Then, the first motor 4 is started, and its output end drives the drill rod 401 to rotate at high speed. The drill rod 401 passes through the rod hole of the support plate 402 to ensure stable rotation. The drill bit 505 at the end of the drill rod 401 rotates with the drill rod 401. At the same time, the movable block 303 continues to slide inside the slide rail 302, so that the drill bit 505 can drill into the interior of the working surface to drill a hole, which facilitates subsequent pipeline laying operations.
[0030] When the drill bit 505 needs to be replaced, loosen the nut 507 at one end of the locking screw 506, pull out the locking screw 506 to disengage it from the mounting hole 501 and the limiting hole 504, slide the mounting ring 502 to allow the rectangular block 503 to slide out of the rectangular groove 5 of the drill rod 401, remove the old drill bit 505, and install the new drill bit 505. Place the mounting ring 502 of the new drill bit 505 on the end of the drill rod 401 to allow the rectangular block 503 to snap into the rectangular groove 5, align the limiting hole 504 with the mounting hole 501, insert the locking screw 506 and tighten the nut 507 to fix it. This allows for quick replacement of the drill bit 505 to meet different drilling needs.
[0031] Working principle: When the device needs to be moved, push the base plate 1, and the rotating shafts 6 at the four corners of its bottom side will drive the foot brake wheels 602 in the mounting frame 601 to roll, moving the device to the working position. After reaching the position, step on the brake assembly of the foot brake wheel 602 to fix the position of the device and prevent it from sliding during operation.
[0032] During pipeline laying, according to the preset angle, the operator starts the servo motor 2 through the control panel 7. Its output end drives the threaded rod 201 to rotate in the groove 202 of the base plate 1, which in turn drives the sliding block 203 to move horizontally along the groove 202, thereby driving the top support seat 204 to move synchronously. The support seat 204 pulls the connecting plate 205 through the pin shaft. The other end of the connecting plate 205 drives the mounting plate 208 to rotate around the rotating shaft 207 in the mounting seat 206 through the connecting seat 209. At the same time, the indicator needle 211 rotates with the rotating shaft 207 and displays the real-time angle on the scale 210 to ensure precise adjustment. After the target angle is reached, the servo motor 2 is turned off, realizing precise angle adjustment of the directional drill. This allows the directional drill to drill at different angles, avoiding drilling deviation and improving the efficiency of pipeline laying.
[0033] After the directional drilling angle is adjusted, the drive motor 3 is started through the control panel 7. Its output end drives the lead screw 301 to rotate in the slide rail 302, thereby driving the movable block 303 to slide along the slide rail 302 and moving the top drill assembly until the drill rod 401 is aligned with the drilling position. Then, the first motor 4 is started, and its output end drives the drill rod 401 to rotate at high speed. The drill rod 401 passes through the rod hole of the support plate 402 to ensure stable rotation. The drill bit 505 at the end of the drill rod 401 rotates with the drill rod 401. At the same time, the movable block 303 will continue to slide inside the slide rail 302, so that the drill bit 505 can drill into the interior of the working surface to drill a hole in the working surface, which facilitates subsequent pipeline laying operations.
[0034] When the drill bit 505 needs to be replaced, loosen the nut 507 at one end of the locking screw 506, pull out the locking screw 506 to disengage it from the mounting hole 501 and the limiting hole 504, slide the mounting ring 502 to allow the rectangular block 503 to slide out of the rectangular groove 5 of the drill rod 401, remove the old drill bit 505, and install the new drill bit 505. Place the mounting ring 502 of the new drill bit 505 on the end of the drill rod 401 to allow the rectangular block 503 to snap into the rectangular groove 5, align the limiting hole 504 with the mounting hole 501, insert the locking screw 506 and tighten the nut 507 to fix it. This allows for quick replacement of the drill bit 505 to meet different drilling needs.
[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An angle adjustment device for directional drilling, characterized in that: The system includes a base plate (1), on one side of which a servo motor (2) is mounted. A threaded rod (201) is mounted on the output end of the servo motor (2). An upward-opening groove (202) is provided inside the top side of the base plate (1). A sliding block (203) is slidably mounted inside the groove (202). A threaded hole is provided inside the sliding block (203). One end of the threaded rod (201) passes through the threaded hole and is rotatably mounted inside one side of the groove (202). A support base (204) is mounted on the top side of the sliding block (203). The support base (204) is fitted with a pin. There is a connecting plate (205), and a mounting base (206) is installed on one end of the top side of the base plate (1). A rotating shaft (207) is rotatably installed inside the mounting base (206). A mounting plate (208) is installed on the outside of the rotating shaft (207). A connecting base (209) is installed on the bottom side of one end of the mounting plate (208). One end of the connecting plate (205) is installed on the outside of the connecting base (209) through a pin. A scale (210) is installed on one side of the mounting base (206). An indicator needle (211) pointing to the scale (210) is installed on one end of the rotating shaft (207).
2. The angle adjustment device for directional drilling according to claim 1, characterized in that: A drive motor (3) is installed on one side of the mounting plate (208). A lead screw (301) is installed at the output end of the drive motor (3). A slide rail (302) is provided inside the top side of the mounting plate (208). A movable block (303) is slidably installed inside the slide rail (302). A threaded hole is provided inside the movable block (303). One end of the lead screw (301) passes through the threaded hole and is rotatably installed inside one side of the slide rail (302).
3. The angle adjustment device for directional drilling according to claim 2, characterized in that: A No. 1 motor (4) is installed on the top side of the movable block (303). A drill rod (401) is installed at the output end of the No. 1 motor (4). A support plate (402) is installed at one edge of the top side of the mounting plate (208). A rod hole is opened inside the support plate (402). One end of the drill rod (401) is set through the rod hole.
4. The angle adjustment device for directional drilling according to claim 3, characterized in that: A rectangular groove (5) is provided inside one side of the drill rod (401). One end of the drill rod (401) passes through the rectangular groove (5) and has an installation hole (501). An installation ring (502) is slidably installed on the outer side of one end of the drill rod (401). A rectangular block (503) is installed on the inner wall of one side of the installation ring (502). A limiting hole (504) with the same radius as the installation hole (501) is provided inside the rectangular block (503). The limiting hole (504) passes through the installation ring (502). A drill bit (505) is installed on one side of the installation ring (502). A locking screw (506) is rotatably installed inside the limiting hole (504) through the installation hole (501). A nut (507) is installed on one end of the locking screw (506).
5. The angle adjustment device for directional drilling according to claim 4, characterized in that: The bottom of the base plate (1) is rotatably mounted with a rotating shaft (6) at each of the four corners. The bottom of the rotating shaft (6) is mounted with a mounting bracket (601). The mounting bracket (601) is fitted with a foot brake wheel (602) through a pin.
6. The angle adjustment device for directional drilling according to claim 5, characterized in that: A control panel (7) is installed on one side of the base plate (1). The control panel (7) is electrically connected to the electrical components inside the device and is used to control the operation of the electrical components inside the device.