Splicing type drill rod

Abstract

The utility model relates to the technical field of drill rods, and provides a spliced drill rod aiming at the problems that the existing drill rod is difficult to splice and the splicing effect is difficult to master accurately, one end of the drill rod is a female end part, the other end of the drill rod is a male end part, a plurality of connecting bolts are convexly arranged at the male end part, a plurality of female grooves are concavely formed in the female end part, and the female end part is provided with a plurality of connecting bolts. The connecting bolts are in one-to-one correspondence with the female grooves; an inner cavity of the female groove is provided with an abutting block, the abutting block is in sliding connection with the inner side wall face of the female groove, and a locking mechanism is arranged on the side, close to the inner cavity of the female groove, of the abutting block. According to the splicing type drill rod, the locking mechanism is embedded in the end portion of the female end of the drill rod, the male end portion of the drill rod can be rapidly connected with the female end portion of the drill rod through the locking mechanism, whether the assembly of the drill rod is qualified or not is rapidly judged through the through core rod, in other words, the time needed by splicing assembly can be obviously shortened on the whole, and the operation burden is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drill rods, in particular to a spliced ​​drill rod. Background Art

[0002] Drill pipe is a steel pipe with detachable ends, usually used to connect the surface equipment of the drilling rig, the drilling and grinding equipment or the bottom hole device at the bottom of the well, to transport the drilling mud to the drill bit, and to raise, lower or rotate the bottom hole device synchronously with the drill bit, etc. According to the needs of the use scenario, the drill pipe needs to be spliced ​​end to end to form a long path when in use.

[0003] In order to realize the highly splicable function of the drill rod, the two ends of the drill rod are usually set to a structure that can match each other, so that any two drill rods can be spliced. For example, the patent with publication number CN220151292U provides a retractable hollow drill rod sleeve, including a drill rod and a drill rod sleeve tightly sleeved on the outside of the drill rod; the drill rod sleeve is a hollow cylindrical structure, which fully covers the side of the drill rod, one end of the drill rod sleeve is provided with an internal thread, and the other end is provided with an external thread, the outer diameter of the external thread is smaller than the outer diameter of the internal thread, and the end of the drill rod sleeve provided with the internal thread is detachably connected to the drill rod through a rod sleeve combination component; the drill rod sleeve includes at least one spiral drill rod sleeve with spiral blades on the outside, which can be spliced ​​by internal and external spiral connection.

[0004] However, the existing drill rods such as the above have the following problems in actual splicing use: it is difficult to quickly align two adjacent drill rods during the splicing process, and it is difficult to accurately determine whether the drill rods are spliced ​​and assembled properly after the splicing is completed.

[0005] Therefore, there is an urgent need for a drill rod that can be spliced ​​conveniently and accurately. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the existing drill rods are difficult to splice and difficult to accurately grasp the splicing effect. The application provides a spliced ​​drill rod, in which a locking mechanism is embedded in the female end of the drill rod, through which the male end of the drill rod can be quickly connected to the female end of the drill rod, and the through rod can be used to quickly determine whether the drill rod is assembled properly, that is, the time required for splicing and assembly can be significantly shortened as a whole, reducing the operating burden.

[0007] The utility model is realized by the following technical solutions:

[0008] A spliced ​​drill rod, one end of the drill rod is a female end, the other end of the drill rod is a male end, the male end is convexly provided with a plurality of connecting bolts, the female end is concavely provided with a plurality of female grooves, the connecting bolts correspond one to one with the female grooves; the inner cavity of the female groove is provided with an abutment block, the abutment block is slidably connected to the inner wall surface of the female groove, and a locking mechanism is provided on the side of the abutment block close to the inner cavity of the female groove.

[0009] Preferably, the locking mechanism comprises a positioning block, the positioning block is embedded in the inner wall surface of the female groove, the sliding surface of the abutment block is concavely provided with a positioning groove, and the positioning block can be snap-fitted with the positioning groove.

[0010] Preferably, a telescopic member is disposed on one side of the abutment block close to the inner bottom of the female groove, an end of the telescopic member away from the abutment block is detachably connected to the female groove, and the telescopic member is in a compressed state.

[0011] Preferably, one end of the positioning block away from the abutment block is provided with a through rod, and one end of the through rod away from the positioning block is arranged to pass through the side wall surface of the female groove.

[0012] Preferably, one end of the through rod passing through the female groove is provided with a limit block, and the limit block is located on the outer side wall of the drill rod.

[0013] Preferably, the female groove comprises an inner groove, a sliding groove and a fixed groove which are connected in sequence, the inner groove can accommodate the telescopic member, the sliding groove can accommodate the abutment block, and the fixed groove can accommodate the connecting bolt or the abutment block respectively.

[0014] Preferably, a connecting seat is arranged on a side of the connecting bolt close to the male end portion, the connecting seat is embedded in the surface of the male end portion, and the connecting bolt is detachably connected to the connecting seat.

[0015] Preferably, a protective ring is sleeved on the outer wall of the drill rod, and the inner ring wall of the protective ring is threadedly connected to the outer wall of the drill rod.

[0016] The technical solution of the utility model has the following beneficial effects:

[0017] The spliced ​​drill rod of the utility model has a locking mechanism embedded in the female end of the drill rod, through which the male end of the drill rod can be quickly connected to the female end of the drill rod, and the positioning block and the through rod in the locking mechanism cooperate to quickly fix the connecting bolt of the male end of the drill rod to the inner cavity of the female groove of the female end of the drill rod, and the through rod can be used to quickly judge whether the drill rod is assembled properly, that is, the time required for splicing and assembling can be significantly shortened as a whole, and the operating burden can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the partial structure of the spliced ​​drill pipe female end in Example 1;

[0020] Figure 2 It is a schematic diagram of the partial structure of the male end of the spliced ​​drill pipe in Example 1;

[0021] Figure 3 Schematic diagram of the cross-sectional structure of the spliced ​​drill pipe in Example 1 (the female end is in a natural state);

[0022] Figure 4 for Figure 3 A schematic diagram of the structure of the local enlargement of the A part;

[0023] Figure 5 for Figure 3 A schematic diagram of the structure of a local enlargement of the B part;

[0024] Figure 6 It is a schematic cross-sectional structural diagram of the spliced ​​drill pipe in Example 1 (the female end is in a connected state);

[0025] Figure 7 for Figure 6 Schematic diagram of the structure of the local enlargement of part C in the figure.

[0026] Icons: 1-female end, 11-female groove, 111-inner groove, 112-sliding groove, 113-fixing groove, 12-abutment block, 13-positioning block, 14-positioning groove, 15-telescopic member, 16-through rod, 17-limiting block, 2-male end, 21-connecting bolt, 22-connecting seat, 3-protective ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] Example 1

[0031] like Figures 1 to 7 As shown, this embodiment provides a spliced ​​drill rod, one end of the drill rod is a female end 1, and the other end of the drill rod is a male end 2, the male end 2 is convexly provided with a plurality of connecting bolts 21, the female end 1 is concavely provided with a plurality of female grooves 11, and the connecting bolts 21 correspond to the female grooves 11 one by one; the inner cavity of the female groove 11 is provided with an abutment block 12, the abutment block 12 is slidably connected to the inner wall surface of the female groove 11, and a locking mechanism is provided on the side of the abutment block 12 close to the inner cavity of the female groove 11; the locking mechanism includes a positioning block 13, the positioning block 13 is embedded in the inner wall surface of the female groove 11, the sliding surface of the abutment block 12 is concavely provided with a positioning groove 14, and the positioning block 13 and the positioning groove 14 can be snapped together.

[0032] In this embodiment, a locking mechanism is embedded in the female end of the drill rod, and the male end 2 of the drill rod can be quickly connected to the female end 1 of the drill rod through the locking mechanism. The positioning block 13 and the through rod 16 in the locking mechanism cooperate to quickly fix the connecting bolt 21 of the male end of the drill rod to the inner cavity of the female groove 11 of the female end of the drill rod, and the through rod 16 can be used to quickly determine whether the drill rod is assembled properly, that is, the time required for splicing and assembly can be significantly shortened as a whole, reducing the operating burden.

[0033] In this embodiment, a telescopic member 15 is disposed on one side of the abutment block 12 close to the inner bottom of the female groove 11 , and one end of the telescopic member 15 away from the abutment block 12 is detachably connected to the female groove 11 , and the telescopic member 15 is in a compressed state.

[0034] In this embodiment, the end of the positioning block 13 away from the abutment block 12 is provided with a through rod 16, and the end of the through rod 16 away from the positioning block 13 is arranged on the side wall of the female groove 11; the end of the through rod 16 passing through the female groove 11 is provided with a limit block 17, and the limit block 17 is located on the outer side wall of the drill rod. When connecting two drill rods, force is applied to the ends, and the limit block 17 is observed to pop up, and the splicing is completed; when the connected drill rod needs to be removed, the limit block 17 can be pulled outward by hand, that is, under the action of the telescopic member 15, the abutment block 12 pops outward, that is, the two drill rods are loosened.

[0035] In this embodiment, the mother groove 11 includes an inner groove 111, a sliding groove 112 and a fixed groove 113 which are connected in sequence. The inner groove 111 can accommodate the telescopic member 15, the sliding groove 112 can accommodate the abutment block 12, and the fixed groove 113 can accommodate the connecting bolt 21 or the abutment block 12 respectively, wherein the cross-sectional area of ​​the fixing groove 113 and the connecting bolt 21 is slightly larger than the cross-sectional area of ​​the sliding groove 112 and the abutment block 12, so as to more firmly fix and connect the two drill rods.

[0036] In this embodiment, a connection seat 22 is disposed on one side of the connection bolt 21 close to the male end portion 2. The connection seat 22 is embedded in the surface of the male end portion 2, and the connection bolt 21 is screwed to the connection seat 22. During repeated use of the drill pipe, the worn connection bolt 21 can be inspected and replaced.

[0037] In this embodiment, the outer wall of the drill pipe is sleeved with a protective ring 3, and the inner ring wall of the protective ring 3 is threadedly connected to the outer wall of the drill pipe. After the splicing and assembly is completed, the protective ring 3 can be rotated to the position where the two drill pipes are connected, which can play an auxiliary protection role for the connection of the drill pipes.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spliced ​​drill rod, wherein one end of the drill rod is a female end (1) and the other end of the drill rod is a male end (2), characterized in that: The male end portion (2) is provided with a plurality of connecting bolts (21) protrudingly, and the female end portion (1) is provided with a plurality of female grooves (11) recessedly, and the connecting bolts (21) correspond to the female grooves (11) one by one; the inner cavity of the female groove (11) is provided with a contact block (12), and the contact block (12) is slidably connected to the inner wall surface of the female groove (11), and a locking mechanism is provided on one side of the contact block (12) close to the inner cavity of the female groove (11).

2. The spliced ​​drill pipe according to claim 1, characterized in that: The locking mechanism comprises a positioning block (13), the positioning block (13) is embedded in the inner wall surface of the female groove (11), the sliding surface of the abutment block (12) is concavely provided with a positioning groove (14), and the positioning block (13) and the positioning groove (14) can be snap-fitted.

3. The spliced ​​drill pipe according to claim 2, characterized in that: A telescopic member (15) is disposed on one side of the contact block (12) close to the inner bottom of the female groove (11); one end of the telescopic member (15) away from the contact block (12) is detachably connected to the female groove (11), and the telescopic member (15) is in a compressed state.

4. The spliced ​​drill pipe according to claim 3, characterized in that: One end of the positioning block (13) away from the abutment block (12) is provided with a through rod (16), and one end of the through rod (16) away from the positioning block (13) is arranged to pass through the side wall surface of the female groove (11).

5. The spliced ​​drill pipe according to claim 4, characterized in that: One end of the through rod (16) passing through the female groove (11) is provided with a limit block (17), and the limit block (17) is located on the outer side wall of the drill rod.

6. The spliced ​​drill pipe according to claim 3, characterized in that: The female groove (11) comprises an inner groove (111), a sliding groove (112) and a fixed groove (113) which are connected in sequence; the inner groove (111) can accommodate the telescopic member (15); the sliding groove (112) can accommodate the abutment block (12); and the fixed groove (113) can accommodate the connecting bolt (21) or the abutment block (12) respectively.

7. The spliced ​​drill pipe according to any one of claims 1 to 6, characterized in that: A connecting seat (22) is arranged on one side of the connecting bolt (21) close to the male end portion (2); the connecting seat (22) is embedded in the surface of the male end portion (2); and the connecting bolt (21) and the connecting seat (22) are detachably connected.

8. The spliced ​​drill pipe according to any one of claims 1 to 6, characterized in that: The outer wall of the drill rod is sleeved with a protective ring (3), and the inner ring wall of the protective ring (3) is threadedly connected to the outer wall of the drill rod.

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