CN214221114U

CN214221114U - Drill rod connecting structure

Info

Publication number: CN214221114U
Application number: CN202120174754.4U
Authority: CN
Inventors: 刘其庆
Original assignee: Tianjin Construction Component Engineering Co ltd
Current assignee: Tianjin Construction Component Engineering Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-09-17
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a drill rod connecting structure, relating to the technical field of drilling equipment, comprising a drill rod main body, wherein a plurality of plug connectors are fixedly arranged on the drill rod main body, and the plug connectors on the upper drill rod main body and the lower drill rod main body are mutually embedded and matched; the outer side of the plug connector is formed with a convex strip, the outer side of the plug connector is sleeved with a fixing ring, and the inner side of the fixing ring is formed with a groove which is embedded and matched with the convex strip; the drilling rod main part of downside rotates and is provided with the fastener, fixedly connected with spring between fastener and the drilling rod main part of downside, and the shaping has on the solid fixed ring can inlay with the fastener and establish the complex draw-in groove. The utility model provides a can stable connection and easy dismounting's a drilling rod connection structure.

Description

Drill rod connecting structure

Technical Field

The utility model relates to a drilling equipment technical field especially relates to a drilling rod connection structure.

Background

When oil and gas exploitation or pile foundation construction, drilling operation is needed, and a drilling machine is needed for the drilling operation. The drill pipe is part of the drilling machine and is used for connecting surface equipment of the drilling machine and drilling and grinding equipment or a bottom hole device at the bottom end of a drilled well. The purpose of the drill pipe is to carry drilling mud to the drill bit and, together with the drill bit, raise, lower or rotate the bottom hole assembly. The drill pipe must be able to withstand large internal and external pressures, twists, bends and vibrations.

The prior utility model with the publication number of CN202611611U discloses a double-shoulder threaded connection structure for drill rods with high torsional strength, which comprises an external thread joint for drill rods and an internal thread joint for drill rods, wherein the external thread joint for drill rods comprises external threads, the internal thread joint for drill rods comprises internal threads, and the internal threads and the external threads both adopt API threads; an inner main torque shoulder is arranged at one end of the drill rod internal thread joint, the inner main torque shoulder is connected with one end of the internal thread through a second internal thread transition section, and the other end of the internal thread is connected with an inner auxiliary torque shoulder through a first internal thread transition section; the one end tip of drilling rod external thread joint is equipped with outer vice moment of torsion circular bead, outer vice moment of torsion circular bead links to each other with the one end of external screw thread through second external screw thread changeover portion, and the other end of external screw thread links to each other with outer main moment of torsion circular bead through first external screw thread changeover portion.

Above-mentioned technical scheme well drilling rod adopts threaded joint's structure to connect, when carrying out a large amount of pile foundation drilling construction, because the drilling rod needs often to be dismantled, such structure needs special extracting tool and wastes time and energy, brings very big influence for the efficiency and the progress of construction.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drilling rod connection structure utilizes the moment of torsion in the plug connector transmission drilling rod main part, utilizes the pulling force on the solid fixed ring transmission drilling rod, and easy dismounting effectively guarantees efficiency of construction and progress.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a drill rod connecting structure comprises a drill rod main body, wherein a plurality of plug connectors are fixedly arranged on the lower drill rod main body, and a plurality of plug-in connection grooves which are mutually embedded and matched with the plug connectors on the lower drill rod main body are formed in the upper drill rod main body; convex strips are formed on the outer surfaces of the plug connector and the upper drill rod main body, a fixing ring is sleeved on the outer side of the plug connector, and a groove matched with the convex strips in an embedded mode is formed in the inner side of the fixing ring; the downside rotate in the drilling rod main part and be provided with the fastener, fixedly connected with spring between fastener and the drilling rod main part of downside, the shaping has on the solid fixed ring can inlay with the fastener and establish the complex draw-in groove.

By adopting the technical scheme, an operator inserts the connector clip on the drill rod main body on the lower side into the insertion groove, and the raised strips can be connected end to form a complete spiral shape. And then, an operator aligns the groove with the convex strip and rotates the fixing ring to enable the convex strip to be embedded and matched with the groove and enable the fixing ring to move downwards to coat the plug connector. At the moment, the rotation torque between the drill rod main bodies is transmitted through the plug connectors, and when the drill rod main bodies need to be lifted or sink, the pulling force between the drill rod main bodies is transmitted through the fixing rings. When the fixing ring rotates, the lower side of the fixing ring enables the clamping piece to be pressed downwards, when the clamping groove in the fixing ring rotates to the position of the clamping piece, the clamping piece is pushed up by the spring to be embedded into the clamping groove, the fixing ring cannot rotate reversely, and the fixing ring is locked. This kind of mode can provide reliable and stable connection between the drilling rod main part, and the dismouting process is convenient fast between the drilling rod main part, effectively guarantees efficiency of construction and progress.

The utility model discloses further set up to: a rotating groove is formed in the drill rod on the lower side, and the clamping piece rotates in the rotating groove; the drill rod on the lower side is formed with a control groove, and the clamping piece is fixedly provided with a control rod matched with the control groove in a sliding manner.

By adopting the technical scheme, the clamping piece is arranged inside the drill rod main body, and an operator can further control the clamping piece by rotating the control rod so as to unlock the fixing ring by the clamping piece. In the construction process, the clamping piece is not easy to collide or unlock the fixing ring by other external force, and the stability of the clamping piece is ensured.

The utility model discloses further set up to: the downside the shaping has first cotter way in the drilling rod main part, the shaping of solid fixed ring's downside has the second cotter way that splices with first cotter way and use, the downside the shaping has the screw hole coaxial with second cotter way in the drilling rod main part, threaded connection has the screw thread cylindric lock in the screw hole.

Through adopting above-mentioned technical scheme, solid fixed ring rotates the drilling rod main part looks butt back with the downside, first cotter way is adjusted well with the second cotter way and is formed a round hole of accomplishing, and operating personnel inserts the cylindric lock in first cotter way and the second cotter way this moment to with screw thread cylindric lock screw in threaded hole, gu fixed ring can't carry out relative rotation with the drilling rod main part of downside again. The position of the fixing ring can be fixed by the mode, the stability of the fixing ring is improved, the dismounting difficulty of the threaded cylindrical pin is small, and the operation is simple.

The utility model discloses further set up to: and a guide strip is fixedly arranged on the drill rod main body on the upper side and is in sliding fit with the groove.

Through adopting above-mentioned technical scheme, the guide strip can make the recess on the solid fixed ring accurately revolve the sand grip on, effectively reduces the installation degree of difficulty, saves installation time, improves the installation effectiveness.

The utility model discloses further set up to: the height that highly is less than the sand grip of guide strip, gu the fixed ring upside is fixed and is provided with spacing.

Through adopting above-mentioned technical scheme, after spacing can guarantee to dismantle the drilling rod main part of upside, spacing receives stopping of plug connector outside sand grip and makes solid fixed ring hang in the drilling rod main part, avoids gu fixed ring drops the inconvenience that brings or solid fixed ring loses.

The utility model discloses further set up to: the side of the plug connector is formed with a plug strip, and the side wall of the plug slot is formed with a slot which is embedded and matched with the plug strip.

Through adopting above-mentioned technical scheme, installing during the drilling rod main part, the slot inlays with the cutting and establishes the cooperation, effectively improves the sealing performance in plug connector gap, avoids the liquid in the drilling rod main part to take place the seepage in the work progress, influences construction quality.

The utility model discloses further set up to: an elastic sealing strip is fixedly arranged in the slot.

Through adopting above-mentioned technical scheme, the leakproofness between the drilling rod main part can further be improved to the elastic sealing strip.

The utility model discloses further set up to: the outer side of the fixing ring is formed with a plurality of stripes along the axial direction.

Through adopting above-mentioned technical scheme, the strip can increase the frictional force in the solid fixed ring outside, improves gu fixed ring the convenience in use when installing and removing.

To sum up, the utility model discloses a beneficial technological effect does:

(1) the torque on the drill rod main body is transmitted by the plug connectors, the tensile force on the drill rod is transmitted by the fixing rings, the disassembly and the assembly are convenient, and the construction efficiency and the progress are effectively guaranteed;

(2) the fixing ring is fixed by the cylindrical pin, so that the fixing ring is prevented from shifting due to accidental factors such as collision and the like in the construction process, the normal connection between the drill rod main bodies is influenced, and the reliability of the drill rod connection structure is effectively improved;

(3) through the embedding cooperation of establishing of slot and cutting, effectively improve the sealing performance in plug connector gap, avoid the liquid in the drilling rod main part to take place the seepage in the work progress.

Drawings

Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention;

fig. 3 is a cross-sectional view of a clip part in an embodiment of the invention.

Reference numerals: 1. a drill rod body; 2. a plug-in unit; 3. inserting grooves; 4. cutting; 5. a slot; 6. an elastic sealing strip; 7. a convex strip; 8. a guide strip; 9. a fixing ring; 10. a groove; 11. a limiting strip; 12. stripes; 13. a rotating groove; 14. a fastener; 15. a spring; 16. a control slot; 17. a control lever; 18. a card slot; 19. a first pin slot; 20. a second pin slot; 21. and (4) a threaded cylindrical pin.

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying examples.

Referring to the attached drawings 1 and 2, the drill rod connecting structure comprises two drill rod main bodies 1, wherein two arc-shaped plate-shaped plug connectors 2 are fixedly arranged at the upper ends of the drill rod main bodies 1 on the lower side, and a plurality of plug connecting grooves 3 which are mutually embedded and matched with the plug connectors 2 on the drill rod main bodies 1 on the lower side are formed in the drill rod main bodies 1 on the upper side. The side shaping of plug connector 2 has cutting 4, and the shaping has on the lateral wall of inserting groove 3 to inlay with cutting 4 and establishes complex slot 5, and slot 5 internal fixation is provided with elasticity sealing strip 6.

The shaping of the drilling rod main part 1 surface of plug connector 2 and upside has sand grip 7, and plug connector 2 will carry out end to end formation heliciform with 3 grafting back sand grips 7 of inserting groove, and the shaping has guide strip 8 on the drilling rod main part 1 of upside still, and guide strip 8 meets and highly is less than the height of sand grip 7 with sand grip 7, and guide strip 8 is the step form with the department of meeting of sand grip 7. The outside of plug connector 2 has cup jointed solid fixed ring 9, and the inboard shaping of solid fixed ring 9 has to inlay with sand grip 7 and establishes complex recess 10, and the inboard fixed spacing strip 11 that is provided with in upper end of solid fixed ring 9, spacing strip 11 make the upper end of recess 10 form the enclosed construction, and when solid fixed ring 9 reachd the lower extreme of upside drilling rod main part 1, spacing strip 11 will be blocked by sand grip 7 and can't drop. The outside of the fixing ring 9 is formed with a plurality of stripes 12 along the axial direction thereof. Through solid fixed ring 9 transmission pulling force between two drilling rod main parts 1, can leave plug connector 2 with solid fixed ring 9 rebound when rotating solid fixed ring 9 to pull down drilling rod main part 1, block by sand grip 7 because the solid fixed ring 9 of the effect of spacing strip 11 can not follow landing on drilling rod main part 1 this moment. With reference to fig. 3, a rotating groove 13 is formed in the drill rod body 1 on the lower side, a clamping piece 14 is rotatably arranged in the rotating groove 13, a spring 15 is fixedly connected between the clamping piece 14 and the bottom of the rotating groove 13, a control groove 16 is formed in the drill rod on the lower side, a control rod 17 in sliding fit with the control groove 16 is fixedly arranged on the clamping piece 14, and a clamping groove 18 capable of being matched with the clamping piece 14 in an embedded mode is formed in the fixing ring 9. When the fixing ring 9 rotates, the lower side of the fixing ring 9 presses the clamping piece 14 downwards, and when the clamping groove 18 on the fixing ring 9 rotates to the position of the clamping piece 14, the clamping piece 14 is pushed up by the spring 15 to be embedded into the clamping groove 18, so that the fixing ring 9 cannot rotate reversely, and the fixing ring 9 is locked.

The drilling rod main part 1 of downside is last the shaping to have first cotter way 19, and the shaping has the screw hole coaxial with second cotter way 20 on the drilling rod main part 1 of downside, and the shaping of the downside of solid fixed ring 9 has the second cotter way 20 of use with first cotter way 19 concatenation, and the shaping has the screw hole coaxial with second cotter way 20 on the drilling rod main part 1 of downside, and threaded connection has screw cylindric lock 21 in the screw hole. The threaded cylindrical pin 21 can fix the position of the fixing ring 9, and the stability of the fixing ring 9 is further improved.

The working principle of the embodiment is as follows: the operator inserts the inserting piece 2 and the inserting groove 3, and the raised strips 7 are connected end to form a complete spiral shape. The operator then turns the retaining ring 9 and moves the retaining ring 9 downwards to cover the plug 2. The operator then aligns the first pin recess 19 with the second pin recess 20 and then inserts the threaded cylindrical pin 21 into the threaded bore and screws it down. At this time, the rotational torque between the drill rod bodies 1 is transmitted through the plug 2, and when the drill rod bodies 1 need to be lifted or lowered, the tensile force between the drill rod bodies 1 is transmitted through the fixing ring 9. This embodiment can provide reliable and stable connection between the drilling rod main part 1, and the dismouting process is convenient fast between the drilling rod main part 1, effectively guarantees efficiency of construction and progress.

The above, only do the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A drill rod connection structure comprises a drill rod main body (1), and is characterized in that: a plurality of plug connectors (2) are fixedly arranged on the drill rod main body (1) at the lower side, and a plurality of plug-in grooves (3) which are mutually embedded and matched with the plug connectors (2) on the drill rod main body (1) at the lower side are formed on the drill rod main body (1) at the upper side; convex strips (7) are formed on the outer surfaces of the plug connector (2) and the drill rod main body (1) on the upper side, a fixing ring (9) is sleeved on the outer side of the plug connector (2), and grooves (10) which are matched with the convex strips (7) in an embedded mode are formed on the inner side of the fixing ring (9); the drilling rod main part (1) of downside rotates and is provided with fastener (14), fixedly connected with spring (15) between fastener (14) and drilling rod main part (1) of downside, the shaping has on solid fixed ring (9) can inlay with fastener (14) and establish complex draw-in groove (18).

2. The drill rod coupling structure according to claim 1, wherein: a rotating groove (13) is formed in the drill rod body (1) on the lower side, and the clamping piece (14) rotates in the rotating groove (13); a control groove (16) is formed in the drill rod on the lower side, and a control rod (17) matched with the control groove (16) in a sliding mode is fixedly arranged on the clamping piece (14).

3. The drill rod coupling structure according to claim 1, wherein: the drilling rod main part (1) of downside goes up the shaping and has first cotter way (19), the downside shaping of solid fixed ring (9) has second cotter way (20) of using with first cotter way (19) concatenation, the downside the shaping has the screw hole coaxial with second cotter way (20) on drilling rod main part (1), threaded connection has screw thread cylindric lock (21) in the screw hole.

4. The drill rod coupling structure according to claim 1, wherein: the drill rod main body (1) on the upper side is further fixedly provided with a guide strip (8), and the guide strip (8) is in sliding fit with the groove (10).

5. The drill rod coupling structure according to claim 4, wherein: the height of guide strip (8) is less than the height of sand grip (7), fixed ring (9) upside is fixed and is provided with spacing strip (11).

6. The drill rod coupling structure according to claim 1, wherein: the side of plug connector (2) shaping has cutting (4), shaping has on the lateral wall of inserting groove (3) to inlay and establish complex slot (5) with cutting (4).

7. The drill rod coupling structure according to claim 6, wherein: an elastic sealing strip (6) is fixedly arranged in the slot (5).

8. The drill rod coupling structure according to claim 1, wherein: the outer side of the fixing ring (9) is formed with a plurality of stripes (12) along the axial direction.