Horizontal directional drilling pipe laying device

Abstract

The horizontal directional drilling pipe laying device comprises a first connecting rod and a second connecting rod, a threaded column is arranged at one end of the first connecting rod, a threaded inner groove in threaded connection with the threaded column is formed in the end of the second connecting rod, and a plurality of limiting columns are evenly arranged on the outer ring of the threaded inner groove. A rotating groove is formed in the outer ring of the threaded column, the limiting column corresponds to the rotating groove in position, the rotating groove extends in the length direction of the second connecting rod, a fixing mechanism is slidably connected into the rotating groove, and the fixing mechanism is used for fixing the limiting column; when the threaded column is in threaded connection with the threaded inner groove, the limiting column can be inserted into the rotating groove and rotate along the rotating groove, and when the threaded column and the threaded inner groove are in threaded connection in place, the limiting column and the first connecting rod can be fixedly connected through the fixing mechanism, so that in the reaming process, the limiting column and the first connecting rod are fixed. Even if the first connecting rod and the second connecting rod violently vibrate, the first connecting rod and the second connecting rod cannot rotate relatively.

Description

Technical Field

[0001] The utility model relates to the field of pipeline laying, in particular to a horizontal directional drilling pipe laying device. Background Art

[0002] Trenchless construction refers to the construction technology of laying, replacing and repairing various underground pipelines by using various rock and soil drilling equipment and technical means to guide and position drilling while excavating a very small part of the surface. The expansion drill bit is required during the excavation process.

[0003] The existing Chinese patent with patent announcement number CN209875065U proposes a quick-release reaming drill bit for a trenchless horizontal pipe-laying drilling rig, including a first connecting rod and a second connecting rod movably connected to the first connecting rod, one end of the second connecting rod is movably connected to the drill bit connecting rod, and the other end of the second connecting rod is provided with an internal threaded ring on the inner side, one end of the first connecting rod is fixedly provided with an external threaded rod used in conjunction with the internal threaded ring, an O-ring is fixedly provided on the outer side of the internal threaded ring close to the second connecting rod, a first serrated opening is provided at one end of the second connecting rod away from the drill bit connecting rod, and a second serrated buckle adapted to the first serrated buckle is provided at one end of the first connecting rod close to the external threaded rod.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during the hole expansion process, due to the rotation of the hole expansion drill bit and the friction between the drill bit and the hole wall, the first connecting rod and the second connecting rod will vibrate violently, thereby causing the first connecting rod and the second connecting rod to loosen, affecting the construction quality. Utility Model Content

[0005] The purpose of the utility model is to provide a horizontal directional drilling pipe-laying device to solve the technical problem that during the above-mentioned hole expansion process, due to the rotation of the hole expansion drill bit and the friction between the hole expansion drill bit and the hole wall, the first connecting rod and the second connecting rod will produce violent vibrations, which will lead to the loosening of the first connecting rod and the second connecting rod, affecting the construction quality.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A horizontal directional drilling pipe laying device includes a first connecting rod and a second connecting rod. A threaded column is provided at one end of the first connecting rod. A threaded inner groove threadedly connected to the threaded column is provided at the end of the second connecting rod. A plurality of limit columns are evenly provided on the outer circle of the threaded inner groove. A rotation groove is provided on the outer circle of the threaded column. The limit columns correspond to the positions of the rotation groove. The rotation groove extends along the length direction of the second connecting rod and is slidably connected to a fixing mechanism inside. The fixing mechanism is used to fix the limit column.

[0008] As a further solution of the utility model: the fixing mechanism includes a fixing ring slidably connected in the rotating groove, the fixing ring slides along the length direction of the rotating groove, a plurality of limiting holes are formed in the fixing ring, and the limiting holes correspond to and match the limiting columns.

[0009] As a further solution of the utility model: two moving grooves are symmetrically formed in the rotating groove along the diameter direction, the extending direction of the moving grooves is the same as that of the rotating groove, and two moving blocks are slidably connected in the two moving grooves, and the moving blocks are symmetrically and fixedly installed on the outer surface of the fixing ring.

[0010] As a further solution of the utility model: two screws are respectively threadedly connected to the two moving blocks, two driving grooves are symmetrically formed in the first connecting rod, the driving grooves are in the extending direction of the moving grooves and are arranged intermittently, the free ends of the screws extend into the driving grooves, and a rotating handle is fixedly arranged at the end, and the screws are rotatably connected to the first connecting rod through bearings.

[0011] As a further solution of the utility model: the gap of the rotating groove is larger than the diameter of the limiting column, and when the threaded column is threadedly connected to the threaded inner groove, the limiting column is inserted into the rotating groove.

[0012] As a further solution of the utility model: a drill bit is arranged at the free end of the first connecting rod, the limiting column is arranged on the end face of the second connecting rod, and the rotating groove and the moving groove are formed on the end face of the first connecting rod.

[0013] As a further solution of the utility model: a sealing cover is clamped outside the two driving grooves, and the sealing cover is used to block the driving grooves.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the threaded column of the utility model is threadedly connected to the threaded inner groove, the limiting column can be inserted into the rotating groove and rotate along the rotating groove. When the threaded column and the threaded inner groove are in place, the limiting column and the first connecting rod can be fixedly connected through the fixing mechanism, so that during the reaming process, even if the first connecting rod and the second connecting rod vibrate violently, the first connecting rod and the second connecting rod will not rotate relative to each other, ensuring that the connection between the first connecting rod and the second connecting rod is still firm and guaranteeing the construction quality; the gap of the rotating groove is larger than the diameter of the limiting column, which is convenient for the limiting column to rotate in the rotating groove and will not be blocked by the side wall of the rotating groove.

[0016] In the present utility model, after the threaded post and the internal threaded groove are in place, the fixing ring slides along the length direction of the rotating groove, and the limiting post is inserted into the limiting hole, fixedly connecting the limiting post and the fixing ring so that they will not rotate relative to each other. As a result, the first connecting rod and the second connecting rod will not rotate relative to each other. During the reaming process, the first connecting rod and the second connecting rod will not be affected by severe vibration and thus the connection firmness will not be affected, ensuring the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the first connecting rod in the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the second connecting rod in the present utility model;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the second connecting rod from another perspective in the present utility model;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the fixing mechanism in the present utility model;

[0021] Figure 5 is a structural schematic diagram of the connection state of the first connecting rod and the second connecting rod in the present utility model.

[0022] In the figure: 1. First connecting rod; 11. Threaded post; 12. Rotating groove; 13. Moving groove; 14. Driving groove; 2. Second connecting rod; 21. Internal threaded groove; 22. Limiting post; 23. Drill bit; 3. Fixing mechanism; 31. Fixing ring; 32. Limiting hole; 33. Moving block; 34. Screw; 35. Rotating handle; 4. Sealing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] A horizontal directional drilling pipe laying device, refer to Figures 1-5, including a first connecting rod 1 and a second connecting rod 2. One end of the first connecting rod 1 is provided with a threaded post 11, and the free end of the first connecting rod 1 is provided with a drill bit 23. A threaded inner groove 21 for threaded connection with the threaded post 11 is opened at the end of the second connecting rod 2. The effects achieved by the above components are as follows: One end of the first connecting rod 1 drills a hole through the drill bit 23, and the other end is fixedly connected to the second connecting rod 2 through the threaded connection between the threaded inner groove 21 and the threaded post 11.

[0026] As Figures 1-5 shown, in this embodiment: A number of limiting posts 22 are evenly arranged on the outer circle of the threaded inner groove 21. The limiting posts 22 are arranged on the end face of the second connecting rod 2. A rotating groove 12 is opened on the outer circle of the threaded post 11. The rotating groove 12 is opened on the end face of the first connecting rod 1. The positions of the limiting posts 22 and the rotating groove 12 correspond to each other. The clearance of the rotating groove 12 is larger than the diameter of the limiting post 22. When the threaded post 11 is threadedly connected to the threaded inner groove 21, the limiting post 22 is inserted into the rotating groove 12. A fixing mechanism 3 is slidably connected inside the rotating groove 12. The fixing mechanism 3 is used to fix the limiting post 22. The effects achieved by the above components are as follows: When the threaded post 11 is threadedly connected to the threaded inner groove 21, the limiting post 22 can be inserted into the rotating groove 12 and rotate along the rotating groove 12. When the threading of the threaded post 11 and the threaded inner groove 21 is in place, the limiting post 22 can be fixedly connected to the first connecting rod 1 through the fixing mechanism 3. During the reaming process, even if the first connecting rod 1 and the second connecting rod 2 vibrate violently, the first connecting rod 1 and the second connecting rod 2 will not rotate relative to each other, ensuring that the connection between the first connecting rod 1 and the second connecting rod 2 remains firm and guaranteeing the construction quality. The clearance of the rotating groove 12 is larger than the diameter of the limiting post 22, facilitating the rotation of the limiting post 22 in the rotating groove 12 without being blocked by the side wall of the rotating groove 12.

[0027] As Figures 1-5As shown in the figure, in this implementation: the rotation groove 12 extends along the length direction of the second link 2. The fixing mechanism 3 includes a fixing ring 31 slidably connected in the rotation groove 12. The fixing ring 31 slides along the length direction of the rotation groove 12. A number of limiting holes 32 are provided on the fixing ring 31. The limiting holes 32 correspond to and match the limiting posts 22. The length of the limiting posts 22 is less than the depth of the rotation groove 12. The effects achieved by the above components are as follows: when the threaded post 11 is in place in the internal threaded groove 21, the fixing ring 31 slides along the length direction of the rotation groove 12, and the limiting post 22 is inserted into the limiting hole 32, connecting the limiting post 22 and the fixing ring 31 fixedly, so that they will not rotate relative to each other. Furthermore, the first link 1 and the second link 2 will not rotate relative to each other. During the reaming process, the first link 1 and the second link 2 will not affect the connection firmness due to violent vibration, ensuring the construction quality. The length of the limiting post 22 is less than the depth of the rotation groove 12. When the threaded post 11 is in place in the internal threaded groove 21, the limiting post 22 will not contact the fixing ring 31. Only when the fixing ring 31 slides a certain distance along the length direction of the rotation groove 12 will the limiting post 22 contact the fixing ring 31.

[0028] As Figures 1-5 shown in the figure, in this implementation: two moving grooves 13 are symmetrically provided along the diameter direction in the rotation groove 12. The moving grooves 13 are provided on the end face of the first link 1. The extending direction of the moving grooves 13 is the same as that of the rotation groove 12. Two moving blocks 33 are slidably connected in the two moving grooves 13. The moving blocks 33 are symmetrically and fixedly installed on the outer surface of the fixing ring 31. The effects achieved by the above components are as follows: the two moving blocks 33 slide along the moving grooves 13, driving the fixing ring 31 to slide along the rotation groove 12 to limit the limiting post 22. There are two moving blocks 33, which are symmetrically located on both sides of the fixing ring 31. Under the action of the moving blocks 33, the fixing ring 31 will not rotate. Therefore, after the limiting post 22 is connected to the fixing ring 31, the limiting post 22 can ensure that it will not rotate relative to the first link 1, achieving the purpose that the first link 1 and the second link 2 will not rotate relative to each other.

[0029] As Figures 1-5As shown in the figure, in this embodiment: Two screw rods 34 are respectively threadedly connected to two moving blocks 33. Two driving grooves 14 are symmetrically formed on the first connecting rod 1. The driving grooves 14 are in the extending direction of the moving groove 13 and are intermittently arranged. The free ends of the screw rods 34 extend into the driving grooves 14, and a rotating handle 35 is fixedly provided at the end. The screw rods 34 are rotatably connected to the first connecting rod 1 through bearings. The effects achieved by the above components are as follows: By rotating the rotating handle 35, the screw rods 34 can be driven to rotate along the first connecting rod 1. The rotation of the screw rods 34 will drive the moving blocks 33 to slide along the extending direction of the moving groove 13, and the moving blocks 33 can drive the fixed ring 31 to slide along the rotating groove 12. The driving grooves 14 are in the extending direction of the moving groove 13 and are intermittently arranged, which enables the middle parts of the screw rods 34 to be rotatably connected to the first connecting rod 1 through bearings.

[0030] As Figures 1-5 shown in the figure, in this embodiment: A sealing cover 4 is clamped outside the two driving grooves 14. The sealing cover 4 is used to block the driving grooves 14. The effects achieved by the above components are as follows: The sealing cover 4 can seal the driving grooves 14 to prevent the influence of external sundries.

[0031] The working principle of the present utility model is as follows: First, screw the threaded post 11 into the threaded inner groove 21. At this time, the limiting post 22 will insert into the rotating groove 12 and rotate in the rotating groove 12 and move along the extending direction of the rotating groove 12 as the threaded post 11 rotates. Then, when the threaded post 11 is completely screwed into the threaded inner groove 21, remove the sealing cover 4. Drive the screw rod 34 to rotate through the rotating handle 35. The screw rod 34 drives the moving block 33 to move along the moving groove 13 towards the second connecting rod 2. The moving block 33 drives the fixed ring 31 to move along the rotating groove 12 towards the second connecting rod 2. During the movement of the fixed ring 31, the limiting post 22 is inserted into the limiting hole 32. When the limiting post 22 is completely inserted into the limiting hole 32, stop rotating the rotating handle 35 and reinstall the sealing cover 4.

[0032] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A horizontal directional drilling pipe laying device, comprising a first connecting rod (1) and a second connecting rod (2), characterized in that: A threaded column (11) is provided at one end of the first connecting rod (1), and a threaded inner groove (21) threadedly connected to the threaded column (11) is provided at the end of the second connecting rod (2). A plurality of limiting columns (22) are evenly arranged on the outer circle of the threaded inner groove (21). A rotation groove (12) is provided on the outer circle of the threaded column (11). The limiting columns (22) correspond to the rotation groove (12) in position. The rotation groove (12) extends along the length direction of the second connecting rod (2) and is slidably connected to a fixing mechanism (3) inside. The fixing mechanism (3) is used to fix the limiting columns (22).

2. A horizontal directional drilling pipe-laying device according to claim 1, characterized in that: The fixing mechanism (3) comprises a fixing ring (31) slidably connected in the rotating groove (12); the fixing ring (31) slides along the length direction of the rotating groove (12); a plurality of limiting holes (32) are formed on the fixing ring (31); the limiting holes (32) correspond to and match the limiting columns (22).

3. A horizontal directional drilling pipe-laying device according to claim 2, characterized in that: The rotating groove (12) is symmetrically provided with two moving grooves (13) along the diameter direction. The extending direction of the moving groove (13) is the same as that of the rotating groove (12). Two moving blocks (33) are slidably connected in the two moving grooves (13). The moving blocks (33) are symmetrically fixedly mounted on the outer surface of the fixing ring (31).

4. A horizontal directional drilling pipe-laying device according to claim 3, characterized in that: Two screw rods (34) are respectively threadedly connected to the two moving blocks (33); two driving grooves (14) are symmetrically provided on the first connecting rod (1); the driving grooves (14) are arranged in an intermittent manner in the extending direction of the moving grooves (13); the free ends of the screw rods (34) extend into the driving grooves (14); and a rotating handle (35) is fixedly provided at the ends; the screw rods (34) are rotatably connected to the first connecting rod (1) via bearings.

5. A horizontal directional drilling pipe-laying device according to claim 4, characterized in that: The gap of the rotation groove (12) is larger than the diameter of the limiting column (22); when the threaded column (11) is threadedly connected with the threaded inner groove (21), the limiting column (22) is inserted into the rotation groove (12).

6. A horizontal directional drilling pipe-laying device according to claim 5, characterized in that: The free end of the first connecting rod (1) is provided with a drill bit (23), the limiting column (22) is arranged on the end surface of the second connecting rod (2), and the rotating groove (12) and the moving groove (13) are opened on the end surface of the first connecting rod (1).

7. A horizontal directional drilling pipe-laying device according to claim 6, characterized in that: The two driving grooves (14) are externally clamped with sealing covers (4), and the sealing covers (4) are used to seal the driving grooves (14).

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