A connecting structure for a drilling rig auger rod

Abstract

This utility model relates to the field of spiral drill rod connection technology, and discloses a spiral drill rod connection structure for drilling rigs, including a spiral drill rod one and a spiral drill rod two. Rectangular grooves are formed at the top of both spiral drill rod one and two, and a locking mechanism is provided in each rectangular groove. The locking mechanism includes two guide rods fixedly connected between the two sides of the rectangular groove. A threaded block is slidably fitted onto the circumferential surface of the two guide rods. Triangular ramps are formed on both sides of the bottom of the threaded block. A threaded rod is threaded into the middle of the threaded block, and both ends of the threaded rod are fixedly connected to hexagonal nuts through the rectangular groove. Slots adapted to the hexagonal nuts are formed on the outer top walls of both spiral drill rod one and spiral drill rod two. This utility model enables the connection of spiral drill rod one and spiral drill rod two simply by rotating the hexagonal nuts, eliminating the need for complex operating steps and tools, greatly improving connection efficiency, and reducing construction time and labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of spiral drill rod connection technology, and in particular to a spiral drill rod connection structure for drilling rigs. Background Technology

[0002] In fields such as mineral exploration, geological drilling, and engineering construction, drilling rigs need to be spliced ​​together with multiple sections of spiral drill rods to achieve drilling operations at different depths. Therefore, the connection structure between drill rods is a core component to ensure drilling efficiency and safety.

[0003] Traditional auger drill pipes mostly use flange or threaded connections. Flange connections require multiple bolts for fastening, which is cumbersome and time-consuming as the bolt holes need to be aligned during assembly. While threaded connections are slightly more efficient to assemble, in high-torque drilling operations, the threads are prone to slippage and breakage due to concentrated stress. Especially when drilling in soft formations or complex rock types, the alternating axial pressure and radial torque on the drill pipe further exacerbate the failure risk of threaded connections, affecting the continuity of drilling operations. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a connecting structure for a drilling rig spiral drill rod.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A connecting structure for a drilling rig auger includes a first auger and a second auger. Rectangular grooves are formed at the top of both the first and second augers, and a locking mechanism is provided in each rectangular groove. Each locking mechanism includes two guide rods fixedly connected between the two sides of the rectangular groove. A single threaded block is slidably fitted onto the circumferential surface of the two guide rods. Triangular ramps are formed on both sides of the bottom of the threaded block. A lead screw is threaded into the center of the threaded block. Both ends of the lead screw pass through the rectangular groove and are fixedly connected to hexagonal nuts. Slots adapted to the hexagonal nuts are formed on the outer top walls of both the first and second augers.

[0007] Preferably, both the second and first spiral drill rods are fixedly connected to a plug-in block at their bottom, and the plug-in block is adapted to the rectangular groove. Each plug-in block has an L-shaped sliding groove at its bottom, and both sides of one end of the L-shaped sliding groove are fixedly connected to an inclined block, which is adapted to the triangular slope.

[0008] Preferably, a second fixing ring is fixedly sleeved at one bottom end of both the first and second spiral drill rods. A second arc-shaped groove is formed on the outer circumference of each second fixing ring, and a notch is formed at both ends of each second arc-shaped groove.

[0009] Preferably, the top circumferential outer walls of both the second and first spiral drill rods are fixedly connected to a first fixing ring. Each first fixing ring has a first arc-shaped groove on its circumferential outer wall, and a rotating ring is rotatably fitted in each first arc-shaped groove. L-shaped blocks are fixedly connected to both sides of the outer wall of the rotating ring, and the L-shaped blocks are respectively adapted to the second arc-shaped groove and the notch.

[0010] Preferably, both the second and first spiral drill rods have annular grooves at their top edges, and both the first and second spiral drill rods have rubber sealing gaskets fixedly fitted at their bottom edges near the insertion block, with the rubber sealing gaskets matching the annular grooves.

[0011] Preferably, a second indicator is provided on one side of the plug block, and a first indicator is provided on one side inside the rectangular groove, and the second indicator is adapted to the first indicator.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. By employing techniques such as hexagonal nuts, lead screws, threaded blocks, and plug-in blocks, once the plug-in block is inserted into the rectangular slot, rotating the hexagonal nut at one end of the lead screw allows the threaded block to move. Combined with the triangular ramp and wedge, this ensures a tight and stable connection between auger rod one and auger rod two. Simultaneously, the deformation of the rubber sealing gasket prevents mud from entering the connection point. This allows for the connection of auger rod one and auger rod two simply by rotating a hexagonal nut, effectively solving the connection inconvenience problem mentioned in the background technology. Furthermore, it enables the connection of auger rod one and auger rod two by rotating the hexagonal nut, eliminating the need for complex operating steps and tools, greatly improving connection efficiency, and reducing construction time and labor intensity.

[0014] 2. By using the rotating ring, L-shaped locking block, and second arc-shaped groove, when connecting the first and second auger rods, the L-shaped locking block is inserted into the second arc-shaped groove, which enables the initial connection between the first and second auger rods without the need for manual support, facilitating subsequent operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the spiral drill rod connection structure for drilling rig proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the top of the spiral drill rod of the spiral drill rod connecting structure for drilling rigs proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the inner side of the rectangular groove of the spiral drill rod connection structure for drilling rigs proposed in this utility model;

[0018] Figure 4This is a schematic diagram of the screw block for connecting spiral drill rods in drilling rigs, as proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the bottom of a spiral drill rod, which is a connecting structure for a drilling rig according to the present invention.

[0020] In the diagram: 1. Spiral drill rod one; 2. Rectangular groove; 201. First indicator; 3. First fixing ring; 301. First arc-shaped groove; 302. Rotating ring; 303. L-shaped locking block; 4. Annular groove; 5. Lead screw; 501. Hex socket nut; 502. Guide rod; 503. Threaded block; 504. Triangular ramp; 6. Second fixing ring; 601. Second arc-shaped groove; 602. Notch; 7. Rubber sealing gasket; 8. Insertion block; 801. Second indicator; 802. L-shaped sliding groove; 803. Inclined block; 9. Spiral drill rod two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-5 A connecting structure for a drilling rig auger includes an auger rod 1 and an auger rod 2 9. The top of both the auger rod 2 9 and the auger rod 1 1 has a rectangular groove 2, and each rectangular groove 2 is equipped with a locking mechanism. The locking mechanism includes two guide rods 502 fixedly connected between the two sides of the rectangular groove 2. A single threaded block 503 is slidably fitted onto the circumferential surface of the two guide rods 502. Triangular ramps 504 are provided on both sides of the bottom of the threaded block 503. A threaded rod 5 is threaded onto the middle of the threaded block 503. Both ends of the threaded rod 5 pass through the rectangular groove 2 and are fixedly connected to hexagonal nuts 501. The top outer walls of both the auger rod 1 1 and the auger rod 2 9 have slots adapted to the hexagonal nuts 501.

[0023] In this utility model, both the bottom of the spiral drill rod 2 9 and the spiral drill rod 1 are fixedly connected with plug-in blocks 8, and the plug-in blocks 8 are adapted to the rectangular groove 2. Each plug-in block 8 has an L-shaped sliding groove 802 at its bottom, and both sides of one end of the L-shaped sliding groove 802 are fixedly connected with inclined blocks 803, and the inclined blocks 803 are adapted to the triangular ramp 504. By moving the screw block 503 horizontally, the inclined blocks 803 are squeezed by the triangular ramp 504, so that the plug-in blocks 8 are tightly inserted and locked towards the bottom of the rectangular groove 2.

[0024] In this utility model, a second fixing ring 6 is fixedly sleeved at one end of the bottom of both the spiral drill rod 1 and the spiral drill rod 9. A second arc-shaped groove 601 is opened on the outer circumference of each second fixing ring 6, and a notch 602 is opened at both ends of each second arc-shaped groove 601.

[0025] In this invention, a first fixing ring 3 is fixedly connected to the outer circumference of the top of both the second spiral drill rod 9 and the first spiral drill rod 1. Each first fixing ring 3 has a first arc-shaped groove 301 on its outer circumference, and a rotating ring 302 is rotatably fitted in each first arc-shaped groove 301. L-shaped locking blocks 303 are fixedly connected to both sides of the outer wall of the rotating ring 302. The L-shaped locking blocks 303 are respectively adapted to the second arc-shaped groove 601 and the notch 602. By sliding the L-shaped locking blocks 303 through the notch 602 in the second arc-shaped groove 601, the second spiral drill rod 9 and the first spiral drill rod 1 can be initially connected, which facilitates the subsequent rotation of the internal hexagonal nut 501. At the same time, the L-shaped locking blocks 303 have sufficient movement space in the second arc-shaped groove 601, which does not affect the subsequent locking of the second spiral drill rod 9 and the first spiral drill rod 1.

[0026] In this utility model, annular grooves 4 are provided at the top edges of both the second spiral drill rod 9 and the first spiral drill rod 1, and rubber sealing gaskets 7 are fixedly fitted at the bottom edges of the first spiral drill rod 1 and the second spiral drill rod 9 near the insertion block 8. The rubber sealing gaskets 7 are adapted to the annular grooves 4. When the rubber sealing gaskets 7 are squeezed, they will deform to ensure that there are no gaps between the first spiral drill rod 1 and the second spiral drill rod 9.

[0027] In this utility model, a second indicator 801 is provided on one side of the plug-in block 8, and a first indicator 201 is provided on one side inside the rectangular groove 2. The second indicator 801 is adapted to the first indicator 201. When the first indicator 201 and the second indicator 801 both point to the same position, the plug-in block 8 can be inserted smoothly.

[0028] Working principle: The locking mechanism and the insertion block 8 allow multiple auger rods to be connected end-to-end. The bottommost auger rod requires a tapered end to ensure proper operation. When connecting auger rod 1 and auger rod 9 end-to-end, ensure the first indicator 201 and the second indicator 801 are facing the same direction to allow the insertion block 8 to be inserted into the rectangular slot 2. At this point, the threaded block 503 will be positioned at the L-shaped corner of the L-shaped groove 802. Before insertion, rotate the rotating ring 302 to align the L-shaped locking block 303 with the notch 602, allowing it to pass through the notch 602 and enter the second arc-shaped groove 601. Rotating the rotating ring 302 then allows the L-shaped locking block to... 303 rotates in the second arc-shaped groove 601, preventing the auger rod 1 and auger rod 2 from separating. Then, by rotating the internal hex nut 501 with a tool, the threaded block 503 moves to the other end. At this time, the triangular ramp 504 slides on top of the inclined block 803. Since the height of the threaded block 503 does not change, under the pressure of the triangular ramp 504 and the inclined block 803, the insertion block 8 is pressed downward, causing the insertion block 8 to insert deeper into the rectangular groove 2. This makes the connection between the auger rod 1 and auger rod 2 more tight. At the same time, the rubber sealing gasket 7 is compressed and deformed, preventing sludge from entering the connection between the auger rod 1 and auger rod 2, ensuring the stability of the rectangular groove 2. Thus, the connection between the auger rod 1 and auger rod 2 can be achieved by rotating an internal hex nut 501.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A screw drill pipe connection structure for a drilling rig, comprising a screw drill pipe one (1) and a screw drill pipe two (9), characterized by, The top of the spiral drill rod 2 (9) and the spiral drill rod 1 (1) are provided with rectangular grooves (2), and each rectangular groove (2) is provided with a locking mechanism. The locking mechanism includes two guide rods (502) fixedly connected between the two sides of the rectangular groove (2). The two guide rods (502) are slidably fitted with the same screw block (503) on their circumferential surfaces. The bottom sides of the screw block (503) are provided with triangular ramps (504). The middle of the screw block (503) is threaded with a screw rod (5). Both ends of the screw rod (5) are fixedly connected to the internal hexagonal nuts (501) through the rectangular groove (2). The top outer walls of the spiral drill rod 1 (1) and the spiral drill rod 2 (9) are provided with slots that are compatible with the internal hexagonal nuts (501).

2. The screw drill pipe connection structure for a drilling rig according to claim 1, characterized by Both the bottom of the second spiral drill rod (9) and the first spiral drill rod (1) are fixedly connected with plug-in blocks (8), and the plug-in blocks (8) are adapted to the rectangular groove (2). Each plug-in block (8) has an L-shaped sliding groove (802) at its bottom, and both sides of one end of the L-shaped sliding groove (802) are fixedly connected with inclined blocks (803), and the inclined blocks (803) are adapted to the triangular ramp (504).

3. The spiral drill rod connection structure for drilling rigs according to claim 1, characterized in that, The bottom end of both the first spiral drill rod (1) and the second spiral drill rod (9) is fixedly fitted with a second fixing ring (6). Each second fixing ring (6) has a second arc groove (601) on its outer circumference, and each second arc groove (601) has a notch (602) at both ends.

4. The screw drill pipe connecting structure for a drilling rig according to claim 1, characterized by The top circumferential outer wall of the spiral drill rod 2 (9) and the spiral drill rod 1 (1) are both fixedly connected with a first fixing ring (3). Each first fixing ring (3) has a first arc groove (301) on its circumferential outer wall, and a rotating ring (302) is rotatably sleeved in each first arc groove (301). L-shaped locking blocks (303) are fixedly connected to both sides of the outer wall of the rotating ring (302), and the L-shaped locking blocks (303) are respectively adapted to the second arc groove (601) and the notch (602).

5. The screw drill pipe connecting structure for a drilling rig according to claim 1, wherein Both the second spiral drill rod (9) and the first spiral drill rod (1) have annular grooves (4) at their top edges. Both the first spiral drill rod (1) and the second spiral drill rod (9) have rubber sealing gaskets (7) fixedly fitted at the bottom edges near the insertion block (8). The rubber sealing gaskets (7) are compatible with the annular grooves (4).

6. The screw drill pipe connection structure for a drilling rig according to claim 2, wherein The plug block (8) has a second indicator (801) on one side, and a first indicator (201) is provided on one side inside the rectangular groove (2), and the second indicator (801) is compatible with the first indicator (201).

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