A trenchless drill rod with modularized bullnose

Abstract

The utility model relates to non - excavation drill rod technical field discloses a non - excavation drill rod with modularization smooth convex, including drill rod, the surface fixedly connected with the fixed plate of drill rod, the inner wall of fixed plate has opened dovetail groove, the inner wall sliding connection has dovetail block of dovetail groove, one end of dovetail block is fixedly connected with the mounting panel, the one end fixedly connected with smooth convex of mounting panel away from dovetail block, one end of fixed plate is provided with fixed component, the inner wall of mounting panel has opened the positioning hole, fixed component includes extension plate, the top fixedly connected with guide frame of extension plate. The utility model discloses by pulling the pull ring, drives the positioning rod to slide in the inside guide frame, and the positioning rod will drive fixed ring to extrude reset spring when moving, positioning rod is separated from the positioning hole simultaneously, and the fixing of mounting panel is cancelled, at this moment, mounting panel is lifted to the up, and it can be disassembled, and it is convenient for subsequent replacement, and simple and convenient fast and efficient operation.

Description

Technical Field

[0001] This utility model relates to the field of trenchless drill rod technology, and in particular to a trenchless drill rod with modularly ground flat protrusions. Background Technology

[0002] Trenchless drill pipes with ground-down protrusions are specifically designed for trenchless construction. Their surfaces are specially treated to smooth out any protrusions or unevenness, reducing frictional resistance with soil or rock during drilling and improving drilling efficiency and construction quality. These drill pipes are typically manufactured using high-strength materials to ensure durability and stability under complex geological conditions. The ground-down protrusion design also helps reduce wear during rotation and advancement, extending the drill pipe's service life and lowering construction costs. Furthermore, these drill pipes offer excellent corrosion resistance, making them suitable for various underground environments and widely used in trenchless engineering projects such as pipeline laying and underground cable installation.

[0003] Currently, trenchless drill rods with modularly ground flat protrusions are fixed to mounting plates with ground flat protrusions using bolts. Disassembly and replacement require the removal of multiple bolts, making installation and disassembly inconvenient. Therefore, we propose a trenchless drill rod with modularly ground flat protrusions. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a trenchless drill rod with modularly ground flat protrusions.

[0005] This utility model is achieved using the following technical solution: a trenchless drill rod with modularly ground flat protrusions, comprising a drill rod, a fixing plate fixedly connected to the surface of the drill rod, a dovetail groove formed on the inner wall of the fixing plate, a dovetail block slidably connected to the inner wall of the dovetail groove, an mounting plate fixedly connected to one end of the dovetail block, a ground flat protrusion fixedly connected to the end of the mounting plate away from the dovetail block, a fixing component provided at one end of the fixing plate, and a positioning hole formed on the inner wall of the mounting plate;

[0006] The fixing component includes an extension plate, a guide frame is fixedly connected to the top of the extension plate, a positioning rod is slidably connected to the inner wall of the guide frame, a fixing ring is fixedly connected to the surface of the positioning rod, a return spring is sleeved on the surface of the positioning rod, and a pull ring is fixedly connected to one end of the positioning rod.

[0007] The above technical solution involves pulling the pull ring to slide the positioning rod inside the guide frame. As the positioning rod moves, it causes the fixing ring to compress the return spring, simultaneously disengaging the positioning rod from the positioning hole and releasing it from the mounting plate. The mounting plate can then be lifted upwards for easy removal and replacement. The operation is simple, convenient, and quick. When installing the mounting plate, the positioning rod is moved to one side to avoid obstructing the bottom of the mounting plate. The dovetail block is then slid into the dovetail groove for initial positioning of the mounting plate. The pull ring is then released, and the elastic return of the return spring pushes the extension plate closer to the mounting plate, moving the positioning rod into the positioning hole to secure the mounting plate. This improves installation efficiency.

[0008] As a further improvement to the above solution, one end of the extension plate is fixedly connected to the surface of the fixed plate.

[0009] As a further improvement to the above solution, one end of the guide frame is fixedly connected to the surface of the return spring.

[0010] The above technical solution guides and limits the positioning rod by using a guide frame to prevent it from shifting during movement and ensures that the positioning rod can accurately enter the interior of the positioning hole.

[0011] As a further improvement to the above solution, the end of the positioning rod away from the pull ring extends into the interior of the positioning hole.

[0012] As a further improvement to the above solution, the size of the positioning rod is adapted to the size of the positioning hole.

[0013] As a further improvement to the above solution, the end of the return spring away from the guide frame contacts the surface of the fixed ring.

[0014] Through the above technical solution, the elastic force of the return spring can continuously push the fixing ring, so that the positioning rod is firmly inserted into the positioning hole, ensuring the stability of the mounting plate after installation.

[0015] As a further improvement to the above solution, the number of fixing plates and mounting plates is set to several.

[0016] With the above technical solution, the number of fixing plates, mounting plates, and fixing components are all the same, and the specific number can be adjusted according to actual needs.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model uses a fixing component. Specifically, by pulling the pull ring, the positioning rod slides inside the guide frame. When the positioning rod moves, it causes the fixing ring to squeeze the return spring. At the same time, the positioning rod disengages from the positioning hole, thus removing the fixing to the mounting plate. At this point, the mounting plate can be lifted upwards to disassemble it, facilitating subsequent replacement. The operation is simple, convenient, and quick.

[0019] This utility model improves installation efficiency by setting up a fixing plate, a mounting plate, and a fixing component. Specifically, the positioning rod is moved to one side to avoid obstructing the bottom of the mounting plate. The dovetail block is slid into the dovetail groove to initially position the mounting plate. Then, the pull ring is released, and the elastic return spring pushes the extension plate closer to the mounting plate, which in turn moves the positioning rod into the positioning hole to fix the mounting plate in place.

[0020] This utility model, by setting a fixing plate, a dovetail groove and a dovetail block, specifically by using the dovetail groove to limit the dovetail block, can effectively prevent the mounting plate from being thrown out during the rotation of the drill rod, thus improving the stability during use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the present invention.

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0024] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the fixing component structure of this utility model.

[0026] Explanation of key symbols:

[0027] 1. Drill rod; 2. Fixing plate; 3. Dovetail groove; 4. Dovetail block; 5. Mounting plate; 6. Grinded protrusion; 7. Fixing assembly; 701. Extension plate; 702. Guide frame; 703. Positioning rod; 704. Fixing ring; 705. Return spring; 706. Pull ring; 8. Positioning hole. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example:

[0030] Please combine Figure 1-5 This embodiment of a trenchless drill rod with modular ground protrusions includes a drill rod 1, a fixing plate 2 fixedly connected to the surface of the drill rod 1, a dovetail groove 3 formed on the inner wall of the fixing plate 2, a dovetail block 4 slidably connected to the inner wall of the dovetail groove 3, an mounting plate 5 fixedly connected to one end of the dovetail block 4, a ground protrusion 6 fixedly connected to the end of the mounting plate 5 away from the dovetail block 4, a fixing component 7 provided at one end of the fixing plate 2, and a positioning hole 8 formed on the inner wall of the mounting plate 5.

[0031] The fixing assembly 7 includes an extension plate 701, a guide frame 702 fixedly connected to the top of the extension plate 701, a positioning rod 703 slidably connected to the inner wall of the guide frame 702, a fixing ring 704 fixedly connected to the surface of the positioning rod 703, a return spring 705 sleeved on the surface of the positioning rod 703, and a pull ring 706 fixedly connected to one end of the positioning rod 703. When the partially worn protrusion 6 needs to be replaced due to wear, pulling the pull ring 706 causes the positioning rod 703 to slide inside the guide frame 702. When the positioning rod 703 moves, it causes the fixing ring 704 to compress the return spring 705, and at the same time, the positioning rod 703 moves from the positioning ring 703 to the guide frame 702. The mounting plate 5 is disengaged from hole 8, and its fixation is released. At this point, the mounting plate 5 can be lifted upwards to remove it, facilitating subsequent replacement. The operation is simple, convenient, and quick. When installing the mounting plate 5, repeat the above disassembly steps, move the positioning rod 703 to one side to avoid obstructing the bottom of the mounting plate 5, slide the dovetail block 4 into the dovetail groove 3 to initially position the mounting plate 5, and then release the pull ring 706. The elastic reset of the return spring 705 pushes the extension plate 701 closer to the mounting plate 5, causing the positioning rod 703 to move into the positioning hole 8, thus fixing the mounting plate 5 in place and improving installation efficiency.

[0032] One end of the extension plate 701 is fixedly connected to the surface of the fixing plate 2.

[0033] One end of the guide frame 702 is fixedly connected to the surface of the return spring 705. The guide frame 702 guides the positioning rod 703 to prevent it from shifting during movement.

[0034] The end of the positioning rod 703 away from the pull ring 706 extends into the interior of the positioning hole 8.

[0035] The dimensions of the positioning rod 703 are adapted to the dimensions of the positioning hole 8.

[0036] The end of the return spring 705 away from the guide frame 702 is in contact with the surface of the retaining ring 704.

[0037] There are several of each of the fixed plate 2 and the mounting plate 5.

[0038] The implementation principle of a trenchless drill rod with modular ground-flat protrusions in this embodiment is as follows: When some of the ground-flat protrusions 6 wear out after long-term use and need to be replaced, pulling the pull ring 706 causes the positioning rod 703 to slide inside the guide frame 702. When the positioning rod 703 moves, it causes the fixing ring 704 to squeeze the return spring 705. At the same time, the positioning rod 703 disengages from the positioning hole 8, releasing the fixation on the mounting plate 5. At this time, the mounting plate 5 can be lifted upwards to disassemble it, facilitating subsequent replacement. The operation is simple, convenient, and quick. When installing the mounting plate 5, the above steps are repeated. The disassembly steps are as follows: move the positioning rod 703 to one side to avoid obstructing the bottom of the mounting plate 5; slide the dovetail block 4 into the dovetail groove 3 to initially position the mounting plate 5; then release the pull ring 706; the elastic return of the return spring 705 pushes the extension plate 701 closer to the mounting plate 5, causing the positioning rod 703 to move into the positioning hole 8, thus fixing the mounting plate 5 in place. This improves installation efficiency. The dovetail groove 3 limits the position of the dovetail block 4, effectively preventing the mounting plate 5 from being thrown out during the rotation of the drill rod 1, thus improving stability during use.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A trenchless drill rod with modularly ground flat protrusions, characterized in that, The device includes a drill rod (1), a fixing plate (2) is fixedly connected to the surface of the drill rod (1), a dovetail groove (3) is provided on the inner wall of the fixing plate (2), a dovetail block (4) is slidably connected to the inner wall of the dovetail groove (3), an mounting plate (5) is fixedly connected to one end of the dovetail block (4), a ground protrusion (6) is fixedly connected to the end of the mounting plate (5) away from the dovetail block (4), a fixing component (7) is provided at one end of the fixing plate (2), and a positioning hole (8) is provided on the inner wall of the mounting plate (5). The fixing component (7) includes an extension plate (701), a guide frame (702) is fixedly connected to the top of the extension plate (701), a positioning rod (703) is slidably connected to the inner wall of the guide frame (702), a fixing ring (704) is fixedly connected to the surface of the positioning rod (703), a return spring (705) is sleeved on the surface of the positioning rod (703), and a pull ring (706) is fixedly connected to one end of the positioning rod (703).

2. The trenchless drill rod with modularly ground protrusions as described in claim 1, characterized in that: One end of the extension plate (701) is fixedly connected to the surface of the fixing plate (2).

3. A trenchless drill rod with modularly ground protrusions as described in claim 1, characterized in that: One end of the guide frame (702) is fixedly connected to the surface of the return spring (705).

4. A trenchless drill rod with modularly ground protrusions as described in claim 1, characterized in that: The end of the positioning rod (703) away from the pull ring (706) extends into the interior of the positioning hole (8).

5. A trenchless drill rod with modularly ground protrusions as described in claim 4, characterized in that: The dimensions of the positioning rod (703) are adapted to the dimensions of the positioning hole (8).

6. A trenchless drill rod with modularly ground protrusions as described in claim 3, characterized in that: The end of the return spring (705) away from the guide frame (702) is in contact with the surface of the retaining ring (704).

7. A trenchless drill rod with modularly ground protrusions as described in claim 1, characterized in that: The number of fixed plates (2) and mounting plates (5) is set to several.

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