Drill rod joint

Abstract

The utility model discloses a drill rod joint, which comprises an upper connecting piece, a lower connecting piece and a lower connecting piece, the water passing piece is connected with the upper connecting piece; the water passing piece is provided with a first water passing pipeline and a second water passing pipeline; the first water pipeline and the second water pipeline are respectively communicated with the main water pipeline; the lower connecting piece is in sliding connection with the water passing piece; when the lower connecting piece is close to the upper connecting piece, the first water passing pipeline is opened and communicated with the main water passing pipeline, and meanwhile, the second water passing pipeline is closed; when the lower connecting piece is far away from the upper connecting piece, the first water pipeline is closed, and meanwhile, the second water pipeline is opened and communicated with the main water pipeline. The high-pressure flushing device is compact in structure, high-pressure flushing liquid is provided when the drill bit drills under the condition that a water pump does not need to be switched on and off, and flushing to a rock core is stopped when the drill rod is lifted.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration technology, specifically to a drill pipe joint. Background Technology

[0002] The drill pipe is a rod that connects the drilling tools and the drill bit during drilling operations and transmits power. One end of the drill pipe is connected to a water tap via a drill pipe connector, allowing high-pressure flushing fluid to be injected into the drill pipe. This fluid cools the heat generated by friction during drill bit drilling and flushes the outer wall of the drill bit when it is lifted. Therefore, there is an urgent need to improve the existing drill pipe connector technology to provide high-pressure flushing fluid during drill bit drilling without the need to switch the water pump on and off, and to stop flushing the rock core when the drill pipe is lifted. Utility Model Content

[0003] The purpose of this utility model is to provide a drill pipe joint that overcomes the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a drill pipe connector, characterized in that it comprises: an upper connector; the upper connector is provided with a main water supply pipe; a water supply component connected to the upper connector; the water supply component is provided with a first water supply pipe and a second water supply pipe; the first water supply pipe and the second water supply pipe are respectively connected to the main water supply pipe; a lower connector slidably connected to the water supply component; when the lower connector is close to the upper connector, the first water supply pipe opens and connects to the main water supply pipe, while the second water supply pipe closes; when the lower connector is away from the upper connector, the first water supply pipe closes, while the second water supply pipe opens and connects to the main water supply pipe.

[0005] In this embodiment, the main water pipe is a through hole arranged along the axis of the upper connector.

[0006] In this embodiment, the end of the upper connector away from the lower connector is provided with an internal thread structure; the end of the lower connector away from the upper connector is provided with an external thread structure.

[0007] In this embodiment, the end of the upper connector away from the lower connector is connected to an input water source; the end of the lower connector away from the upper connector is connected to the drill rod.

[0008] In this embodiment, the water-conducting component includes: a connecting portion connected to the upper connecting portion; a body connected to the connecting portion; the body is provided with a first water-conducting pipe and a second water-conducting pipe; through holes are provided in the axial direction of the connecting portion and the body, so that the first water-conducting pipe and the second water-conducting pipe are respectively connected to the main water-conducting pipe; the lower connecting portion is sleeved on the outside of the body; and a blocking portion connected to the body; the lower connecting portion slides along the axial direction of the body, and both ends are blocked by the upper connecting portion and the blocking portion respectively, so as to prevent the lower connecting portion from sliding out of the body.

[0009] In this embodiment, the first water pipe and the second water pipe each include a plurality of connecting holes arranged along the radial direction of the body.

[0010] In some possible implementations, the connecting portion is threadedly connected to the upper connector.

[0011] In this embodiment, the connecting part is provided with an external thread structure, and the connection between the upper connector and the connecting part is provided with an internal thread structure.

[0012] In some possible implementations, the body is a non-cylindrical structure to prevent the water-passing component from rotating with the upper connector.

[0013] In this embodiment, the cross-section of the body is hexahedral.

[0014] Compared with the prior art, the drill pipe joint of this utility model has the following advantages: by setting a first water pipe and a second water pipe on the water supply component, the drill bit can be cooled and the outer wall of the drill pipe can be flushed. When the drill bit is lowered, the lower connector is close to the upper connector. At this time, the first water pipe is opened and connected to the main water pipe, while the second water pipe is closed. At this time, high-pressure flushing fluid flows from the drill pipe to cool the drill bit. When the drill bit is raised, the lower connector is away from the upper connector. The first water pipe is closed, while the second water pipe is opened and connected to the main water pipe. At this time, high-pressure flushing fluid flows out from the outer wall of the drill pipe and stops flushing the rock core. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a drill pipe joint according to an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the overall structure of the connector according to an embodiment of this application;

[0017] Figure 3 This is a schematic diagram of the overall structure of a water-passing component according to an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the overall structure of the connector according to an embodiment of this application;

[0019] Figure 5 A schematic diagram showing the opening of the first water pipe. Detailed Implementation

[0020] Embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different examples, all of which do not depart from the scope of this utility model, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit this utility model.

[0021] It should be understood that although the terms "first," "second," etc., may be used herein to describe various features, these features should not be limited by these terms. The use of these terms is merely for distinction and should not be construed as indicating or implying relative importance. For example, without departing from the scope of the exemplary embodiments, a first feature may be referred to as a second feature, and similarly, a second feature may be referred to as a first feature.

[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the accompanying drawings and specific circumstances.

[0023] This application provides a drill pipe joint. Figure 1 This is a schematic diagram of the overall structure of a drill pipe joint according to an embodiment of this application. Figure 1 As shown, the drill pipe joint includes: an upper connector 100; the upper connector is provided with a main water supply pipe; a water supply component 200 connected to the upper connector 100; the water supply component 200 is provided with a first water supply pipe and a second water supply pipe; the first water supply pipe and the second water supply pipe are respectively connected to the main water supply pipe; and a lower connector 300 slidably connected to the water supply component 200; when the lower connector 300 is close to the upper connector 100, the first water supply pipe opens and connects to the main water supply pipe, while the second water supply pipe closes; when the lower connector 300 is away from the upper connector 100, the first water supply pipe closes and the second water supply pipe opens and connects to the main water supply pipe.

[0024] Figure 2 This is a schematic diagram of the overall structure of the upper connector according to an embodiment of this application, as shown below. Figure 2As shown, the upper connector 100 has a through hole 101 along its axial direction, which is configured as the main water supply pipe. Both ends of the upper connector are provided with internal thread structures (102, 103). The internal thread structure 102 is connected to an input water source (such as a water pump, not shown in the figure), which is used to transport high-pressure flushing fluid. The internal thread structure 103 is connected to the water supply component 200.

[0025] Figure 3 This is a schematic diagram of the overall structure of a water-passing component according to an embodiment of this application, as shown below. Figure 3 As shown, the water supply component 200 includes: a connecting part 201 connected to the upper connecting part 100; a body 202 connected to the connecting part 201; a first water supply pipe and a second water supply pipe are provided on the body 202; through holes are provided in the axial direction of the connecting part 201 and the body 202 so that the first water supply pipe and the second water supply pipe are respectively connected to the main water supply pipe; a lower connecting part 300 is sleeved on the outside of the body 202; a blocking part 203 connected to the body 202; the lower connecting part 300 slides along the axial direction of the body 202, and both ends are blocked by the upper connecting part 100 and the blocking part 203 respectively to prevent the lower connecting part 300 from sliding out of the body 202.

[0026] In one specific embodiment of this application, the connecting part 201 is provided with an external thread structure, which is connected to the internal thread structure 103 of the upper connector 100.

[0027] In one specific embodiment of this application, the first water pipe and the second water pipe each include a plurality of connecting holes arranged radially along the body 202.

[0028] Specifically, the first water supply pipe consists of several connecting holes 204 near the blocking part 203; the second water supply pipe consists of several connecting holes 205 away from the blocking part 203.

[0029] In one specific embodiment of this application, in order to prevent the water-conducting component 200 from rotating with the upper connector 100, the body 202 is configured as a non-cylindrical structure; preferably, the cross-section of the body 202 is hexahedral.

[0030] Preferably, such as Figure 3 As shown, each surface of the main body 202 is provided with a connecting hole 204, that is, the first water pipe contains 6 connecting holes 204 and the second water pipe contains 6 connecting holes 205. This design increases the flow rate of the high-pressure flushing fluid.

[0031] Figure 4 This is a schematic diagram of the overall structure of the lower connector according to an embodiment of this application, as shown below. Figure 4 As shown, the end of the lower connector 300 away from the upper connector 100 is configured with an external thread structure 301, which is connected to a drill rod (not shown in the figure). The thread structure is designed to facilitate connection with the drill rod.

[0032] The working principle of this utility model is as follows: when the drill bit is lowered, if... Figure 5 As shown, when the lower connector 300 approaches the upper connector 100, the first water supply line opens and connects to the main water supply line, while the second water supply line closes. At this time, high-pressure flushing fluid flows into the drill pipe to cool the drill bit. When the drill bit is lifted, refer to... Figure 1 When the lower connector 300 is moved away from the upper connector 100, the first water pipe is closed, and at the same time the second water pipe is opened and connected to the main water pipe, the high-pressure flushing fluid flows out from the outer wall of the drill pipe and no longer flushes the rock core.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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 a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A drill pipe joint, characterized in that, Include: Uploaded component; The upper connector is equipped with a main water pipe; A water-conducting component is connected to the upper connector; The water-conducting component is equipped with a first water-conducting pipe and a second water-conducting pipe; The first water supply pipe and the second water supply pipe are respectively connected to the main water supply pipe; The lower connector is slidably connected to the water-conducting component; When the lower connector approaches the upper connector, the first water pipe opens and connects with the main water pipe, while the second water pipe closes. When the lower connector moves away from the upper connector, the first water pipe is closed, and at the same time the second water pipe is opened and connected to the main water pipe.

2. The drill pipe joint as described in claim 1, characterized in that, The main water pipe is a through hole arranged along the axis of the upper connector.

3. The drill pipe joint as described in claim 1, characterized in that, The upper connector has an internal thread structure at the end away from the lower connector; the lower connector has an external thread structure at the end away from the upper connector.

4. The drill pipe joint as described in claim 1 or 3, characterized in that, The end of the upper connector away from the lower connector is connected to an input water source; the end of the lower connector away from the upper connector is connected to the drill rod.

5. The drill pipe joint as described in claim 1, characterized in that, The water-passing component includes: a connecting part, which is connected to the upper connecting part; The main body is connected to the connecting part; The main body is provided with the first water pipe and the second water pipe; Through holes are provided in the axial direction of the connecting part and the body so that the first water pipe and the second water pipe are respectively connected to the main water pipe; The lower connector is sleeved on the outside of the main body; The blocking part is connected to the main body; The lower connector slides along the axial direction of the body, and its two ends are blocked by the upper connector and the blocking part, respectively, to prevent the lower connector from sliding out of the body.

6. The drill pipe joint as described in claim 5, characterized in that, The first water pipe and the second water pipe each contain a plurality of connecting holes arranged along the radial direction of the body.

7. The drill pipe joint as described in claim 5, characterized in that, The connecting part is threadedly connected to the upper connector.

8. The drill pipe joint as described in claim 7, characterized in that, The connecting part is provided with an external thread structure, and the connection between the upper connector and the connecting part is provided with an internal thread structure.

9. The drill pipe joint as described in claim 5, characterized in that, The body is a non-cylindrical structure.

10. The drill pipe joint as described in claim 5 or 9, characterized in that, The cross-section of the body is hexahedral.

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