Horizontal directional drilling tool

Abstract

A horizontal directional drilling tool comprises a drill bit, an adapter and a drill rod, the adapter is welded to the rear end of the drill bit, a mounting opening is formed in the adapter, a plurality of containing grooves are annularly formed in the mounting opening, positioning balls are arranged in the containing grooves, and a locking mechanism is further arranged on the adapter. Compared with the prior art, the utility model has the advantages that through the matching among the adapter, the mounting port, the accommodating groove, the positioning ball and the locking mechanism, the connection and separation processes of the drill bit and the drill rod are simpler and more convenient, complicated fixing and rotating operations are not needed, the assembly and disassembly efficiency is obviously improved, and the operation time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drilling tool technical field, especially a horizontal directional drilling tool. BACKGROUND

[0002] The horizontal directional drilling tool is a kind of construction machinery for laying underground public facilities (such as pipeline, cable, etc.) under the condition of not excavating surface.It is widely used in water supply, power, telecommunications, natural gas, gas, oil and other flexible pipeline laying construction, especially suitable for sandy soil, clay and other ground conditions.

[0003] In the existing drilling technology, drill bit and drill rod are usually fixed together by threaded connection method.In the process of assembly and disassembly, drill bit or drill rod needs to be fixed first, and then connection or separation is realized by rotating one of the components.However, this fixing and rotating process not only takes time and effort, but also increases the operation difficulty, especially in complex or narrow working environment, the limitation of this traditional connection method is more prominent, not only affects work efficiency, but also may increase operation risk. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a horizontal directional drilling tool, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: a horizontal directional drilling tool, comprising a drill bit, an adapter and a drill rod, the adapter is welded at the rear end of the drill bit, an installation port is formed in the adapter, a plurality of accommodating grooves are arranged in the installation port, a positioning bead is arranged in each accommodating groove, and a locking mechanism is further arranged on the adapter.

[0006] As a further description of the above technical scheme, the locking mechanism comprises a positioning ring, a bolt hole, a countersunk bolt and a threaded groove, the positioning ring is slidably sleeved on the adapter, two symmetrically distributed bolt holes are formed in the positioning ring, the countersunk bolt is arranged in each bolt hole, and two threaded grooves are formed in the adapter and threadedly matched with the countersunk bolt.

[0007] As a further description of the above technical scheme, the front end of the drill rod is fixedly connected with a plug-in connector, and the plug-in connector is inserted into the installation port.

[0008] As a further description of the above technical scheme, a plurality of positioning grooves matched with the positioning beads are arranged on the plug-in connector.

[0009] As a further description of the above technical scheme, two symmetrically distributed guide grooves are formed in the installation port.

[0010] As a further description of the above technical solutions, the outer wall of the plug connector is fixedly connected with two guide blocks which are in sliding fit with the guide grooves.

[0011] As a further description of the above technical solutions, the accommodating groove is a circular groove, and the inner diameter gradually decreases from the middle to the two ends.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Through the cooperation between the adapter, the mounting port, the accommodating groove, the positioning bead and the locking mechanism, the connection and separation process of the drill bit and the drill rod is more convenient, without complicated fixing and rotating operation, the efficiency of assembly and disassembly is improved, and the operation time is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the horizontal directional drilling tool of the utility model;

[0015] Figure 2 It is an adapter structure schematic view of the horizontal directional drilling tool of the utility model;

[0016] Figure 3 It is an adapter sectional view of the horizontal directional drilling tool of the utility model;

[0017] Figure 4 It is a drill rod structure schematic view of the horizontal directional drilling tool of the utility model;

[0018] In the drawing: 1, drill bit; 2, adapter; 3, drill rod; 4, mounting port; 41, accommodating groove; 42, positioning bead; 5, locking mechanism; 51, positioning ring; 52, bolt hole; 53, countersunk bolt; 54, threaded groove; 31, plug connector; 32, positioning groove; 6, guide groove; 33, guide block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features and achieved purpose of the utility model easy to understand, the utility model is further described in combination with specific implementation manners.

[0020] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4 This utility model provides a horizontal directional drilling tool, including a drill bit 1, an adapter 2, and a drill rod 3. The adapter 2 is welded to the rear end of the drill bit 1. The adapter 2 has an installation port 4, and the installation port 4 has multiple receiving grooves 41 arranged around it. The receiving grooves 41 contain positioning beads 42. The adapter 2 is also provided with a locking mechanism 5. When assembling the drill bit 1 and the drill rod 3, the connector 31 on the drill rod 3 is inserted into the installation port 4. During insertion, the positioning beads 42 are squeezed into the receiving grooves 41 by the connector 31, making room for the connector 31 to enter. When the connector 31 is fully inserted, the positioning grooves 32 will align with the receiving grooves 41, and then the positioning ring 51 will be pushed to make the positioning bead 42 align with the receiving grooves 41. Positioning ring 51 presses against positioning beads 42, causing multiple positioning beads 42 to be embedded into their respective positioning grooves 32, thus fixing the connector 31 in the mounting port 4. Then, the positioning ring 51 is fixed by the locking mechanism 5, completing the assembly of the drill bit 1 and the drill rod 3. During disassembly, the locking of the positioning ring 51 is released, allowing the positioning ring 51 to reset and the positioning beads 42 to no longer be pressed by the positioning ring 51. Then, the drill rod 3 is pulled, causing it to move outward and press against the positioning beads 42, causing them to retract into the receiving groove 41. This allows the connector 31 to be pulled out, completing the disassembly of the drill rod 3 and the drill bit 1. The connection and separation process of the drill bit 1 and the drill rod 3 is now simpler, significantly improving the efficiency of assembly and disassembly.

[0023] Specifically, such as Figure 3 As shown, a horizontal directional drilling tool has a locking mechanism 5 including a positioning ring 51, bolt holes 52, countersunk bolts 53, and threaded grooves 54. The positioning ring 51 is slidably sleeved on the adapter 2. The positioning ring 51 has two symmetrically distributed bolt holes 52, and the bolt holes 52 are equipped with countersunk bolts 53. The adapter 2 has two threaded grooves 54 that are threaded to the countersunk bolts 53. After the countersunk bolts 53 are screwed into the threaded grooves 54, the positioning ring 51 can be fixed in place, so that it keeps pressing the positioning bead 42, thereby preventing the positioning bead 42 from accidentally disengaging from the positioning groove 32 during drilling, which would cause the drill rod 3 to detach from the adapter 2.

[0024] Specifically, such as Figure 4As shown, a horizontal directional drilling tool has a connector 31 fixedly connected to the front end of the drill rod 3, and the connector 31 is inserted into the mounting port 4.

[0025] Specifically, such as Figure 4 As shown, a horizontal directional drilling tool has a plurality of positioning grooves 32 on the upper ring of the connector 31, which are adapted to the positioning beads 42.

[0026] Specifically, such as Figure 2 As shown, a horizontal directional drilling tool has two symmetrically distributed guide grooves 6 inside the mounting port 4.

[0027] Specifically, such as Figure 4 As shown, a horizontal directional drilling tool has two guide blocks 33 fixedly connected to the outer wall of the connector 31, which slide in a guide groove 6. When the connector 31 is inserted into the installation port 4, the guide blocks 33 need to be inserted into the guide groove 6, so as to ensure that the positioning groove 32 on the connector 31 corresponds to the receiving groove 41.

[0028] Specifically, such as Figure 3 As shown, a horizontal directional drilling tool has a circular receiving groove 41, and the inner diameter gradually decreases from the middle to both ends, which can prevent the positioning bead 42 from falling out of the receiving groove 41.

[0029] It should be noted that this utility model is a horizontal directional drilling tool. When assembling the drill bit 1 and the drill rod 3, the connector 31 on the drill rod 3 is inserted into the mounting port 4 inside the adapter 2. During insertion, the positioning beads 42 are squeezed into the receiving groove 41 by the pressure of the connector 31, making room for the connector 31 to enter. When the connector 31 is fully inserted, the positioning groove 32 will align with the receiving groove 41, and then the positioning ring 51 will be pushed. The positioning ring 51 will squeeze the positioning beads 42, so that the multiple positioning beads 42 are respectively embedded. Insert the connector 31 into the corresponding positioning groove 32 and fix it in the mounting port 4. Then screw the countersunk bolt 53 into the threaded groove 54 to fix the positioning ring 51. This completes the assembly of the drill bit 1 and the drill rod 3. When disassembling, unscrew the countersunk bolt 53 to reset the positioning ring 51. The positioning bead 42 will no longer be squeezed by the positioning ring 51. Then pull the drill rod 3. The drill rod 3 moves outward and squeezes the positioning bead 42, causing it to retract into the receiving groove 41. Then the connector 31 can be pulled out to complete the disassembly of the drill rod 3 and the drill bit 1.

[0030] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A horizontal directional drilling tool, comprising a drill bit (1), an adapter (2), and a drill rod (3), characterized in that: The adapter (2) is welded to the rear end of the drill bit (1). The adapter (2) has an installation port (4) inside. The installation port (4) has multiple receiving grooves (41) in the inner ring. The receiving grooves (41) have positioning beads (42) inside. The adapter (2) also has a locking mechanism (5).

2. A horizontal directional drilling tool according to claim 1, characterized in that: The locking mechanism (5) includes a positioning ring (51), bolt holes (52), countersunk bolts (53) and threaded grooves (54). The positioning ring (51) is slidably sleeved on the adapter (2). The positioning ring (51) has two symmetrically distributed bolt holes (52). The bolt holes (52) are provided with countersunk bolts (53). The adapter (2) has two threaded grooves (54) that are threaded to the countersunk bolts (53).

3. A horizontal directional drilling tool according to claim 2, characterized in that: The front end of the drill rod (3) is fixedly connected to a connector (31), which is inserted into the mounting port (4).

4. A horizontal directional drilling tool according to claim 3, characterized in that: The connector (31) is provided with a plurality of positioning grooves (32) that are adapted to the positioning beads (42).

5. A horizontal directional drilling tool according to claim 3, characterized in that: Two symmetrically distributed guide grooves (6) are provided inside the mounting port (4).

6. A horizontal directional drilling tool according to claim 5, characterized in that: Two guide blocks (33) that slide in cooperation with the guide groove (6) are fixedly connected to the outer wall of the connector (31).

7. A horizontal directional drilling tool according to claim 1, characterized in that: The receiving groove (41) is a circular groove, and its inner diameter gradually decreases from the middle to both ends.

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