Drill rod connecting piece

Abstract

The utility model provides a drill rod connecting piece. The drill rod connecting piece comprises a drill pipe, at least one conveying pipe, a first connecting piece body and a second connecting piece body. And the at least one conveying pipe is arranged in the drilling pipe. The first connecting piece is installed at one end of the drill pipe and arranged on the periphery of at least one conveying pipe in a sleeving mode. The second connecting piece is installed at the end, away from the first connecting piece, of the drill pipe and arranged on the periphery of at least one conveying pipe in a sleeving mode. Any two adjacent drill pipes are configured to be connected in a clamped mode through the first connecting pieces and the second connecting pieces. According to the drill rod connecting piece, any two adjacent drill rods are assembled through the first connecting piece and the second connecting piece, in the tunneling process, any two adjacent drill rods transmit power through the first connecting piece and the second connecting piece, stress can be prevented from being concentrated on the conveying pipe, so that the conveying pipe only plays a role in conveying, and the conveying efficiency is improved. The condition of fracture between the drill rods is prevented as much as possible, the service life of the drill rods is greatly prolonged, the maintenance frequency is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of drilling equipment, and in particular to a drill rod connecting piece. Background Art

[0002] When digging pile holes, pile foundation drilling tools are usually required. Pile foundation drilling tools usually consist of a rotary system, a drill rod and a drill bit. Among them, the drill rod is installed between the rotary system and the drill bit. The rotary system drives the drill bit to rotate through the drill rod to achieve excavation. During the excavation process, in order to facilitate the transmission of high-pressure gas, a high-pressure gas delivery pipe is usually installed inside the drill rod. In related technologies, the drill rod is usually directly connected to the rotary system, drill bit or drill rod through the high-pressure gas delivery pipe. Therefore, the high-pressure gas delivery pipe plays a role of transportation and transmission. In order to facilitate transmission, the high-pressure gas delivery pipe is usually set to a prismatic shape, so that it is easy to clip the drill rod to the rotary system or drill bit. Since the high-pressure gas delivery pipe is set to a prismatic shape, stress concentration is easily generated during use, which makes the high-pressure gas delivery pipe easy to break, affecting construction efficiency and cumbersome maintenance. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a drill pipe connection to solve the technical problem in the prior art that high-pressure gas transmission pipes are prone to breakage.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in this application is to provide a drill pipe connection, comprising:

[0005] Drill pipe;

[0006] at least one transport pipe, wherein at least one transport pipe is disposed in the drill pipe;

[0007] a first connecting member, the first connecting member being mounted on one end of the drill pipe and sleeved on the outer circumference of at least one of the transport pipes;

[0008] a second connecting member, the second connecting member being mounted on an end of the drill pipe away from the first connecting member and being sleeved on an outer circumference of at least one of the transport pipes;

[0009] Wherein, any two adjacent drill pipes are configured to be connected by clamping through the first connecting piece and the second connecting piece.

[0010] Optionally, the first connecting member includes a first connecting block and at least one wedge-shaped groove, the first connecting block is mounted on one end of the drill pipe, and the at least one wedge-shaped groove is provided on the first connecting block;

[0011] The second connecting member includes a second connecting block and at least one wedge block. The second connecting block is installed at one end of the drill pipe away from the second connecting block. At least one wedge block is connected to the second connecting block and is arranged in a one-to-one correspondence with at least one wedge groove.

[0012] Optionally, the groove wall of the wedge-shaped groove is provided with at least one first groove;

[0013] The wedge block is provided with at least one second groove, and the at least one second groove is arranged in a one-to-one correspondence with the at least one first groove;

[0014] Wherein, the second groove is configured to enclose with the first groove to form a pin hole for the pin shaft to be inserted when the wedge block is clamped in the wedge groove.

[0015] Optionally, the first connecting block is provided with at least one first through hole, and the at least one first through hole is provided in a one-to-one correspondence with the at least one transport pipe, and is configured to avoid the at least one transport pipe;

[0016] The second connecting block is provided with at least one second through hole, and the at least one second through hole is provided in a one-to-one correspondence with the at least one transport pipe, and is configured to avoid the at least one transport pipe.

[0017] Optionally, one end of the transport pipe away from the second connecting block is located in the first through hole;

[0018] One end of the transport pipe away from the first connecting block is passed through the second through hole and exposed from the surface of the first connecting block.

[0019] Optionally, at least one first sealing ring is abutted between the transport pipe and the first connecting block.

[0020] Optionally, at least one second sealing ring is abutted between the transport pipe and the second connecting block.

[0021] Optionally, the wedge-shaped grooves are symmetrically arranged along the first connecting block.

[0022] Optionally, both the first connecting block and the second connecting block are located inside the drill pipe.

[0023] The beneficial effects of the drill pipe connection provided by this application are:

[0024] The drill rod connecting piece provided in the present application is a piece in which any two adjacent drill rods are assembled through a first connecting piece and a second connecting piece. Compared with the related art, during the excavation process, stress concentration on the transport pipe can be avoided so that the transport pipe only plays a role of transportation, and fractures between the drill rods can be prevented as much as possible, which greatly improves the service life of the drill rods, reduces the number of maintenance times, and helps to improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 A first perspective perspective view of a drill pipe connection provided in an embodiment of the present application;

[0027] Figure 2 A second perspective view of a drill pipe connection provided in an embodiment of the present application;

[0028] Figure 3 A perspective view of a drill pipe connection provided in an embodiment of the present application without the drill pipe;

[0029] Figure 4 An assembled perspective view of a first connecting member and a second connecting member of a drill pipe connecting member provided in an embodiment of the present application;

[0030] Figure 5 A perspective view of a first connector of a drill pipe connector provided in an embodiment of the present application;

[0031] Figure 6 This is a three-dimensional view of the second connecting piece of the drill pipe connecting piece provided in an embodiment of the present application.

[0032] Among them, the reference numerals in the figures are:

[0033] 1. Drill pipe;

[0034] 2. Transport pipe;

[0035] 3. First connecting member; 31. First connecting block; 32. Wedge-shaped groove; 33. First groove; 34. First through hole;

[0036] 4. Second connecting member; 41. Second connecting block; 42. Wedge block; 43. Second groove; 44. Second through hole. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0038] It should be noted that when an element is referred to as being “mounted on,” “fixed on,” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0041] In this application, the term "and / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0042] like Figures 1 to 6 As shown, an embodiment of the present application provides a drill pipe connection, comprising a drill pipe 1, at least one transport pipe 2, a first connection member 3, and a second connection member 4. The at least one transport pipe 2 is disposed within the drill pipe 1. The first connection member 3 is mounted at one end of the drill pipe 1 and sleeved around the outer circumference of the at least one transport pipe 2. The second connection member 4 is mounted at an end of the drill pipe 1 away from the first connection member 3 and sleeved around the outer circumference of the at least one transport pipe 2. Any two adjacent drill pipes 1 are configured to be connected by a snap-fit ​​connection via the first connection member 3 and the second connection member 4.

[0043] It should be noted that in this embodiment, the number of transport pipes 2 is set to three as an example. Of course, in other embodiments, the number of transport pipes 2 can also be set to one, two, four, etc. according to actual application requirements, and this is not limited to any other number.

[0044] Specifically, increasing excavation depth often necessitates the use of multiple sections of drill pipe. In related art, high-pressure gas pipes are typically used for direct connection. To facilitate this connection, the ends of these pipes are often directly shaped into a prismatic shape. Consequently, these prismatic pipes are susceptible to brittle fracture during use due to stress concentration.

[0045] The drill rod connector provided in the present application is a connector in which any two adjacent drill rods are assembled through a first connector 3 and a second connector 4. Compared with related technologies, during the excavation process, any two adjacent drill rods transmit power through the first connector 3 and the second connector 4, which can avoid stress concentration on the transport pipe 2, so that the transport pipe 2 only plays a role of transportation, and prevents breakage between the drill rods as much as possible, greatly improving the service life of the drill rods, reducing the number of maintenance times, and helping to improve construction efficiency.

[0046] In one embodiment of the present application, see Figures 1 to 6 The first connecting member 3 includes a first connecting block 31 and at least one wedge-shaped slot 32. The first connecting block 31 is mounted on one end of the drill pipe 1, and the at least one wedge-shaped slot 32 is provided in the first connecting block 31. The second connecting member 4 includes a second connecting block 41 and at least one wedge-shaped block 42. The second connecting block 41 is mounted on the end of the drill pipe 1 away from the second connecting block 41. The at least one wedge-shaped block 42 is connected to the second connecting block 41 and is provided in a one-to-one correspondence with the at least one wedge-shaped slot 32.

[0047] It should be noted that in this embodiment, the number of wedge-shaped grooves 32 and the number of wedge-shaped blocks 42 are both set to two. Of course, in other embodiments, the number of wedge-shaped grooves 32 and the number of wedge-shaped blocks 42 can also be one, three, four, or other numbers, depending on actual application requirements, and this is not a limitation.

[0048] With such an arrangement, when assembling two adjacent drill rods, the first connecting block 31 and the second connecting block 41 can be snap-connected through the wedge block 42 and the wedge groove 32, making assembly easy. During the excavation process, one drill rod can transmit power to the other drill rod through the wedge block 42 and the wedge groove 32, and the force transmission is stable. Providing a plurality of wedge blocks 42 and wedge grooves 32 helps to further improve the structural stability between the first connecting block 31 and the second connecting block 41, thereby helping to improve the structural stability between the two adjacent drill rods. In addition, during use, the wedge block 42 is directly exposed to the outside of the drill pipe 1. Compared with the use of a high-pressure gas transport pipe for snap connection in the related art, the use of the wedge block 42 can be directly observed from the outside, so that faults can be discovered in time, which facilitates maintenance.

[0049] In one embodiment of this application, please refer to Figures 1 to 6 The wall of the wedge-shaped groove 32 is provided with at least one first groove 33. The wedge-shaped block 42 is provided with at least one second groove 43, and the at least one second groove 43 is provided in a one-to-one correspondence with the at least one first groove 33. The second groove 43 is configured to enclose the first groove 33 to form a pin hole for the pin shaft to be inserted when the wedge-shaped block 42 is engaged in the wedge-shaped groove 32.

[0050] It should be noted that in this embodiment, the number of the first groove 33 and the number of the second groove 43 are both set to two. Of course, in other embodiments, the number of the first groove 33 and the second groove 43 can also be one, three, four, or other numbers, depending on actual application requirements, and this is not a limitation.

[0051] With this arrangement, after the wedge block 42 is snapped into the wedge groove 32, the first groove 33 and the second groove 43 can enclose a complete pin hole. After the external pin is inserted into the pin hole, the wedge block 42 can be fixed in the wedge groove 32, thereby securing the first and second connecting blocks 31, 41, and facilitating assembly. Furthermore, compared to directly inserting the pin through the wedge block 42 and the first connecting block 31, this helps improve the shear resistance of the pin on the first and second connecting blocks 31, 41, thereby further improving the structural stability between two adjacent drill rods.

[0052] In one embodiment of the present application, see Figures 1 to 6 The first connection block 31 defines at least one first through hole 34, which is provided in a one-to-one correspondence with at least one transport pipe 2 and is configured to avoid the at least one transport pipe 2. The second connection block 41 defines at least one second through hole 44, which is provided in a one-to-one correspondence with at least one transport pipe 2 and is configured to avoid the at least one transport pipe 2.

[0053] It should be noted that, since the first through holes 34 are provided in a one-to-one correspondence with the transport tubes 2, and there are three transport tubes 2, the number of first through holes 34 is three and always remains consistent with the number of transport tubes 2. Since the second through holes 44 are provided in a one-to-one correspondence with the transport tubes 2, and there are three transport tubes 2, the number of second through holes 44 is three and always remains consistent with the number of transport tubes 2.

[0054] With this arrangement, the transport pipe 2 can be avoided through the first through hole 34 and the second through hole 44. After the two drill rods are assembled, the transport pipes 2 in the two drill rods can be connected to facilitate the transportation of the medium.

[0055] In one embodiment of the present application, see Figures 1 to 6 , one end of the transport tube 2 away from the second connection block 41 is located in the first through hole 34 . One end of the transport tube 2 away from the first connection block 31 is passed through the second through hole 44 and exposed from the surface of the first connection block 31 .

[0056] This arrangement allows the connection between two adjacent transport pipes 2 to be covered in the first through hole 34, i.e., in the first connection block 31. When using the transport pipes 2 to transport media, it helps to improve the sealing between the transport pipes 2, prevent media leakage as much as possible, and facilitate the transport of media.

[0057] In one embodiment of this application, please refer to Figures 1 to 6 At least one first sealing ring (not shown) is abutted between the transport pipe 2 and the first connection block 31 . At least one second sealing ring (not shown) is abutted between the transport pipe 2 and the second connection block 41 .

[0058] With this arrangement, the first sealing ring can seal the gap between the transport pipe 2 and the first connecting block 31, preventing leakage of the medium therefrom. The first sealing ring can also seal the gap between the transport pipe 2 and the second connecting block 41, preventing leakage of the medium therefrom. In summary, the first and second sealing rings can prevent leakage of the medium, provide excellent sealing performance, and facilitate medium transport.

[0059] In one embodiment of the present application, see Figures 1 to 6 The wedge-shaped grooves 32 are symmetrically arranged along the first connecting block 31 .

[0060] With this arrangement, during the excavation process, the stress between the first connecting block 31 and the second connecting block 41 can act evenly on the multiple wedge blocks 42, avoiding stress concentration on one of the wedge blocks 42 and causing breakage of two adjacent drill rods, which helps to further reduce the number of maintenance times.

[0061] In one embodiment of the present application, see Figures 1 to 6 , the first connecting block 31 and the second connecting block 41 are both located inside the drill pipe.

[0062] With this arrangement, after the first connecting block 31 and the second connecting block 41 are assembled, the wedge block 42 is located inside the drill pipe, and the drill pipe can thereby limit the wedge block 42. Compared with related technologies, this helps to further improve the structural stability between two adjacent drill rods.

[0063] The one or more embodiments of this application are intended to encompass all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this application should be included in the scope of protection of this application.

Claims

1. A drill pipe connection, characterized in that: include: Drill pipe (1); At least one transport pipe (2), wherein at least one transport pipe (2) is arranged inside the drill pipe (1); A first connecting member (3), the first connecting member (3) being mounted on one end of the drill pipe (1) and sleeved on the outer circumference of at least one of the transport pipes (2); a second connecting member (4), the second connecting member (4) being mounted on an end of the drill pipe (1) away from the first connecting member (3) and being sleeved on the outer circumference of at least one of the transport pipes (2); Any two adjacent drill pipes (1) are configured to be connected by clamping via the first connecting piece (3) and the second connecting piece (4).

2. The drill pipe connection according to claim 1, wherein: The first connecting member (3) comprises a first connecting block (31) and at least one wedge-shaped groove (32), wherein the first connecting block (31) is mounted on one end of the drill pipe (1), and at least one wedge-shaped groove (32) is provided on the first connecting block (31); The second connecting member (4) comprises a second connecting block (41) and at least one wedge block (42), wherein the second connecting block (41) is mounted on an end of the drill pipe (1) away from the second connecting block (41), and at least one wedge block (42) is connected to the second connecting block (41) and is arranged in a one-to-one correspondence with at least one wedge groove (32).

3. The drill pipe connection according to claim 2, wherein: The groove wall of the wedge-shaped groove (32) is provided with at least one first groove (33); The wedge-shaped block (42) is provided with at least one second groove (43), and the at least one second groove (43) and the at least one first groove (33) are arranged in a one-to-one correspondence; The second groove (43) is configured to enclose the first groove (33) to form a pin hole for the pin shaft to be inserted when the wedge block (42) is clamped in the wedge groove (32).

4. The drill pipe connection according to claim 2, wherein: The first connecting block (31) is provided with at least one first through hole (34), and the at least one first through hole (34) is arranged in a one-to-one correspondence with at least one transport pipe (2), and is configured to avoid the at least one transport pipe (2); The second connecting block (41) is provided with at least one second through hole (44), and the at least one second through hole (44) is arranged in a one-to-one correspondence with at least one transport pipe (2), and is configured to avoid the at least one transport pipe (2).

5. The drill pipe connection according to claim 4, characterized in that: One end of the transport pipe (2) away from the second connecting block (41) is located in the first through hole (34); One end of the transport pipe (2) away from the first connection block (31) is passed through the second through hole (44) and exposed from the surface of the first connection block (31).

6. The drill pipe connection according to claim 5, characterized in that: At least one first sealing ring is abutted between the transport pipe (2) and the first connecting block (31).

7. The drill pipe connection according to claim 6, wherein: At least one second sealing ring is abutted between the transport pipe (2) and the second connecting block (41).

8. The drill pipe connection according to claim 2, wherein: The wedge-shaped grooves (32) are symmetrically arranged along the first connecting block (31).

9. The drill pipe connection according to claim 2, wherein: The first connecting block (31) and the second connecting block (41) are both located inside the drill pipe.

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