Stable drill rod connecting structure for geological drilling construction

Abstract

The utility model relates to the technical field of drill rod connection, in particular to a stable drill rod connecting structure for geological drilling construction, which comprises a first drill rod and a second drill rod, a connecting female head and a connecting male head are respectively and fixedly mounted at the butted end parts of the first drill rod and the second drill rod, and a plurality of raised strips are arranged on the outer walls of the connecting female head and the connecting male head. And a connecting sleeve is slidably mounted on the outer walls of the connecting female head and the connecting male head. Compared with the prior art, the drill rod has the advantages that the first drill rod, the second drill rod, the connecting male head and the connecting female head are arranged, the connecting male head and the connecting female head are in threaded connection, meanwhile, the connecting sleeve is installed on the outer wall of the connecting female head and the outer wall of the connecting male head, the multiple protruding strips enter the multiple grooves, and therefore the first drill rod and the second drill rod can be connected more stably; according to the drill rod, tight fit is achieved, the torsional strength is improved, meanwhile, it is ensured that the stability is higher when the drill rod transmits torque, geological drilling tasks can be conveniently implemented, and therefore the problems existing in the prior art are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drill pipe connection, especially a stable drill pipe connecting structure for geological drilling construction. BACKGROUND

[0002] Geological drilling is a technical means of drilling into the ground by mechanical equipment and obtaining rock and mineral samples, aiming to reveal the stratum structure, mineral resource distribution and engineering geological conditions, serving the fields of energy development, engineering construction and scientific research.

[0003] The traditional drill pipe connection generally adopts simple thread connection, and the connection stability is relatively low. In order to ensure the efficient geological drilling, ensure that the drill pipes have high structural strength, and ensure that the drill pipes have higher stability when transmitting torque, a stable drill pipe connecting structure for geological drilling construction is proposed to realize the above functions. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of prior art, and provides a stable drill pipe connecting structure for geological drilling construction, which effectively solves the problems of prior art.

[0005] In order to realize the above purpose, the embodiment of the utility model provides a stable drill pipe connecting structure for geological drilling construction, which comprises a first drill pipe and a second drill pipe. The opposite ends of the two are respectively fixedly provided with a connecting female head and a connecting male head. The outer walls of the connecting female head and the connecting male head are provided with a plurality of protruding strips. The outer walls of the connecting female head and the connecting male head are slidably provided with a connecting sleeve, and the inner wall of the connecting sleeve is provided with a groove matched with the protruding strips. The top side of the outer wall of the connecting female head is screw-mounted with a pressing sleeve, which presses the connecting sleeve. The outer wall of the pressing sleeve is provided with a plurality of first clamping grooves. The top surface of the connecting sleeve is provided with a plurality of second clamping grooves corresponding to the first clamping grooves. The bottom end of the outer wall of the first drill pipe is slidably provided with a shaft ring, and the bottom surface of the shaft ring is provided with a plurality of clamping blocks entering the first clamping grooves and the second clamping grooves.

[0006] According to the above-mentioned any scheme, the outer wall of the first drill pipe close to the connecting female head is embedded with a magnetic ring, and the outer diameter of the first drill pipe is smaller than that of the connecting female head. By using this scheme, the magnetic ring can attract the connecting sleeve after the connecting sleeve slides along the first drill pipe, preventing it from accidentally falling off, and facilitating the operator to use tools to disassemble the first drill pipe and the second drill pipe, ensuring the convenience of operation.

[0007] Preferably, both ends of the plurality of protruding strips are provided with rounded corners, and the plurality of protruding strips are arranged along the circumferential lines of the connecting female head and the connecting male head, respectively.

[0008] Preferably, the connecting sleeve, the compression sleeve and the collar can vertically slide along the outer wall of the first drill rod, the length of the connecting sleeve is greater than the sum of the lengths of the connecting female head and the connecting male head, and the use of the connecting sleeve can completely cover the connecting female head and the connecting male head, thereby playing an auxiliary role during torque transmission, adjusting the sealing ring between the connecting male head and the connecting female head, improving the sealing performance after the connection of the two, and ensuring the injection of mud or gas and the smooth drilling.

[0009] Preferably, the inner diameter of the collar is greater than the outer diameter of the first drill rod, and the bottom surface of the collar is in close contact with the top surface of the compression sleeve, so that the collar can vertically slide along the outer wall of the first drill rod, the bottom surface of the collar is in stable contact with the top surface of the compression sleeve, and the outer diameter of the collar is smaller than the outer diameter of the compression sleeve, so that the compression sleeve is in contact with external debris during drilling, thereby reducing the wear of the collar.

[0010] The utility model has the following advantages:

[0011] 1. The stable drill rod connecting structure for geological drilling construction, the connecting male head and the connecting female head are threadedly connected, the connecting sleeve is installed on the outer wall of the connecting female head and the connecting male head, the plurality of protruding strips enter the plurality of grooves, thereby facilitating the connection of the first drill rod and the second drill rod, achieving close cooperation, improving the torsional strength, ensuring higher stability when the drill rod transmits torque, facilitating the implementation of the geological drilling task, and effectively solving the problems in the prior art.

[0012] 2. The stable drill rod connecting structure for geological drilling construction, the compression sleeve, the connecting sleeve and the collar are provided, the outer wall of the compression sleeve is provided with a plurality of first clamping grooves, the top side of the outer wall of the connecting sleeve is provided with a plurality of second clamping grooves, and the clamping blocks on the bottom surface of the collar are matched with the first clamping grooves and the second clamping grooves, respectively, the compression sleeve is convenient for limiting the connecting sleeve, the collar and the clamping blocks limit the compression sleeve, preventing the compression sleeve from rotating due to external force during the rotation of the drill rod, and ensuring the stability of the connection of the first drill rod and the second drill rod. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is assembly structure schematic view of first drill pipe and second drill pipe of the utility model;

[0014] Figure 2 It is cut structure schematic view of first drill pipe and second drill pipe of the utility model;

[0015] Figure 3 It is explosion structure schematic view of first drill pipe and second drill pipe of the utility model;

[0016] Figure 4 It is first visual angle structure schematic view of connecting sleeve of the utility model;

[0017] Figure 5 It is explosion structure schematic view of connecting female head and connecting male head of the utility model;

[0018] Figure 6 It is second visual angle structure schematic view of connecting sleeve of the utility model.

[0019] In the drawing: 1-first drill pipe, 2-second drill pipe, 3-axle ring, 4-clamping block, 5-connecting sleeve, 6-pressing sleeve, 7-magnetic ring, 8-connecting female head, 9-connecting male head, 10-protruding strip, 11-first clamping groove, 12-second clamping groove, 13-groove. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings, but the protection scope of the utility model is not limited to the following.

[0021] As Figures 1 to 6 Shown, a kind of stable drill pipe connecting structure for geological drilling construction, it includes first drill pipe 1 and second drill pipe 2, the end portion of the opposite joint of the two is fixedly installed with connecting female head 8 and connecting male head 9 respectively, the outer wall of first drill pipe 1 and second drill pipe 2 is all provided with recess for the clamping of external tool, facilitate the clamping of recess with external tool, then make first drill pipe 1 rotate, under the condition that connecting sleeve 5 is separated, it is convenient to make first drill pipe 1 and second drill pipe 2 separate

[0022] The ion argon arc welding technology is adopted to weld and connect the connecting female head 8 and the connecting male head 9 with the first drill rod 1 and the second drill rod 2, so that the welded weld joint is high in strength and facilitates the torque transmission, a plurality of protruding strips 10 are arranged on the outer walls of the connecting female head 8 and the connecting male head 9, the connecting sleeve 5 is slidably arranged on the outer walls of the connecting female head 8 and the connecting male head 9, and the inner wall of the connecting sleeve 5 is provided with grooves 13 matched with the protruding strips 10, the outer wall of the pressing sleeve 6 is provided with a plurality of first clamping grooves 11, the top surface of the connecting sleeve 5 is provided with a plurality of second clamping grooves 12 corresponding to the first clamping grooves 11, and the bottom end of the outer wall of the first drill rod 1 is slidably provided with the shaft ring 3, and the bottom surface of the shaft ring 3 is provided with a plurality of clamping blocks 4 entering the first clamping grooves 11 and the second clamping grooves 12.

[0023] The outer wall of the first drill rod 1 close to the connecting female head 8 is embedded with the magnetic ring 7, and the outer diameter of the first drill rod 1 is smaller than that of the connecting female head 8, so that the magnetic ring 7 can attract the connecting sleeve 5 after the connecting sleeve 5 slides along the first drill rod 1, thereby preventing the connecting sleeve 5 from accidentally falling off, facilitating the operator to use a tool to disassemble the first drill rod 1 and the second drill rod 2, and ensuring the operation convenience.

[0024] The two ends of the plurality of protruding strips 10 are provided with round corners, and the plurality of protruding strips 10 are arranged along the circumferential lines of the connecting female head and the connecting male head 9, so that the protruding strips 10 can enter the grooves 13, the plurality of protruding strips 10 and the plurality of grooves 13 are stably matched, the torque transmission is assisted, the stability of the connecting male head 9 and the connecting female head 8 is ensured, the first drill rod 1 and the second drill rod 2 can be reversed, the connecting male head 9 and the connecting female head 8 cannot be loosened, and the use requirement in different environments is met.

[0025] The connecting sleeve 5, the pressing sleeve 6 and the shaft ring 3 can vertically slide along the outer wall of the first drill rod 1, the length of the connecting sleeve 5 is greater than the sum of the lengths of the connecting female head 8 and the connecting male head 9, so that the connecting sleeve can completely cover the connecting female head 8 and the connecting male head 9, the auxiliary effect is ensured during the torque transmission, the sealing ring between the connecting male head 9 and the connecting female head 8 is adjusted, the sealing property after the connection of the two is improved, the injection of mud or gas is ensured, and the drilling is smoothly carried out.

[0026] The inner diameter of the shaft ring 3 is larger than the outer diameter of the first drill rod 1, and the bottom surface of the shaft ring 3 is attached to the top surface of the compression sleeve 6, so that the shaft ring 3 is conveniently vertically slid along the outer wall of the first drill rod 1, and the bottom surface of the shaft ring 3 is stably attached to the top surface of the compression sleeve 6, and the outer diameter of the shaft ring 3 is smaller than the outer diameter of the compression sleeve 6, so that the compression sleeve 6 is in contact with external debris and the like during drilling, thereby reducing the wear of the shaft ring 3.

[0027] The stable drill rod connecting structure for geological drilling construction needs the following steps when in use:

[0028] 1) When the first drill rod 1 and the second drill rod are connected, the connecting female head 8 is matched with the connecting male head 9 and is relatively rotated to realize the connection;

[0029] 2) The connecting sleeve 5 is lowered, so that the plurality of protruding strips 10 enter the inside of the grooves 13;

[0030] 3) The external tool is connected with the first clamping groove 11, the compression sleeve 6 and the outer wall of the connecting female head 8 are relatively rotated, and the connecting sleeve 5 is compressed;

[0031] 4) The shaft ring 3 is lowered, so that the clamping blocks 4 enter the inside of the first clamping groove 11 and the second clamping groove 12, respectively, and the compression sleeve 6 is limited.

[0032] In summary, when in use, the first drill rod 1, the second drill rod 2, the connecting male head 9 and the connecting female head 8 are connected, the connecting male head 9 and the connecting female head 8 are threadedly connected, the connecting sleeve 5 is installed on the outer wall of the connecting female head 8 and the connecting male head 9, the plurality of protruding strips 10 enter the inside of the plurality of grooves 13, so that the first drill rod 1 and the second drill rod 2 are more stably connected, a tight fit is realized, the torsional strength is improved, the stability of the drill rod when transmitting torque is higher, the implementation of the geological drilling task is facilitated, thereby effectively solving the problems existing in the prior art, the compression sleeve 6, the connecting sleeve 5 and the shaft ring 3 are further provided, the outer wall of the compression sleeve 6 is provided with a plurality of first clamping grooves 11, the top side of the outer wall of the connecting sleeve 5 is provided with a plurality of second clamping grooves 12, the clamping blocks 4 on the bottom surface of the shaft ring 4 are matched with the first clamping grooves 11 and the second clamping grooves 12, respectively, the compression sleeve 6 is limited to the connecting sleeve 5, the shaft ring 3 and the clamping blocks 4 limit the compression sleeve 6, so that the compression sleeve 6 is prevented from being rotated due to external force during the rotation of the drill rod, and the stability of the connection of the first drill rod 1 and the second drill rod 2 is ensured.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A stable drill pipe connection structure for use in geological drilling operations, characterized by: The utility model provides a first drill rod (1) and second drill rod (2) are included, and the opposite end of two is fixedly installed with connecting female head (8) and connecting male head (9) respectively, the outer wall of connecting female head (8) and connecting male head (9) is provided with a plurality of convex strips (10), the outer wall of connecting female head (8) and connecting male head (9) is slidably installed with connecting sleeve (5), and the inner wall of connecting sleeve (5) is provided with the recess (13) that is matched with convex strip (10), the top side of the outer wall of connecting female head (8) is screw mounted with the compression sleeve (6), and it is compressed to connecting sleeve (5), the outer wall of compression sleeve (6) is provided with a plurality of first clamping groove (11), the edge of the top surface of connecting sleeve (5) is provided with a plurality of second clamping groove (12) corresponding with first clamping groove (11), the bottom of the outer wall of first drill rod (1) is slidably installed with the shaft ring (3), and the bottom of shaft ring (3) is installed with a plurality of the clamping block (4) that enters the inside of first clamping groove (11) and second clamping groove (12).

2. The stable drill rod connecting structure for geological drilling construction according to claim 1, characterized in that: The outer wall of the first drill rod (1) is close to the connecting female head (8) and is inlaid with a magnetic ring (7), and the outer diameter of the first drill rod (1) is smaller than the outer diameter of the connecting female head (8).

3. The stable drill rod connecting structure for geological drilling construction according to claim 2, characterized in that: Both ends of the plurality of convex strips (10) are provided with rounded corners, and the plurality of convex strips (10) are respectively distributed along the circumferential line of the connecting female head and the connecting male head (9).

4. The stable drill rod connecting structure for geological drilling construction according to claim 3, characterized in that: The connecting sleeve (5), the compression sleeve (6) and the shaft ring (3) can vertically slide along the outer wall of the first drill rod (1), and the length of the connecting sleeve (5) is greater than the sum of the lengths of the connecting female head (8) and the connecting male head (9).

5. The stable drill rod connecting structure for geological drilling construction according to claim 4, characterized in that: The inner diameter of the shaft ring (3) is greater than the outer diameter of the first drill rod (1), and the bottom surface of the shaft ring (3) is in contact with the top surface of the compression sleeve (6).

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