CN211549603U

CN211549603U - Drill rod reducing joint

Info

Publication number: CN211549603U
Application number: CN201921866638.8U
Authority: CN
Inventors: 蔡金国; 王云; 季兵
Original assignee: Yancheng Ruihua Petroleum Machinery Technology Co ltd
Current assignee: Yancheng Ruihua Petroleum Machinery Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-09-22
Anticipated expiration: 2029-10-31

Abstract

A drill rod reducing joint comprises a connector, an elastic clamping block and a rotary fixing piece, wherein a drill rod is connected through the connector, the elastic clamping block is sleeved outside the connector, the elastic clamping block is provided with a clamping block fixing hole, a reset structure is arranged in the clamping block fixing hole, and the rotary fixing piece is arranged outside the elastic clamping block; the reset structure comprises a telescopic rod and a spring, the telescopic rod is arranged in the clamping block fixing hole, and the spring is arranged at two ends of the telescopic rod. The utility model discloses a simple combination joint has strengthened the connection atress between joint and the drilling rod, can replace fast or increase and decrease the drilling rod simultaneously, has improved work efficiency.

Description

Drill rod reducing joint

Technical Field

The utility model relates to a drilling rod apparatus instrument field especially relates to a drilling rod reducing joint.

Background

The drill rod is a rod connected in the drilling tool for transmitting power. A rod connected in the drilling tool for transmitting power. The drill rod is a steel pipe with threads at the tail part and is used for connecting surface equipment of the drilling machine and drilling and grinding equipment or a bottom hole device positioned 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. In the process of oil and gas exploitation and extraction, the drill pipe can be used for multiple times.

The joint of the drill rod that uses on a large scale now because the gap is not little, in drilling process, silt can be inside along the gap entering drill rod, can damage the connector between the drill rod. Damage to the joints can cause interlocking wear, which can reduce the service life of the drill pipe. Meanwhile, the direct connection mode used by the joint has the defect of not being too labor for connection for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art and providing a drill rod reducer union.

A drill rod reducing joint is characterized by comprising a connector, an elastic clamping block and a rotary fixing piece, wherein a drill rod is connected through the connector, the elastic clamping block is sleeved outside the connector, the elastic clamping block is provided with a clamping block fixing hole, a reset structure is arranged in the clamping block fixing hole, and the rotary fixing piece is arranged outside the elastic clamping block; the reset structure comprises a telescopic rod and a spring, the telescopic rod is arranged in the clamping block fixing hole, and the spring is arranged at two ends of the telescopic rod.

Preferably, the elastic clamping block is externally provided with a protruding part, the diameter of the protruding part of the elastic clamping block is reduced from large to small, and the elastic clamping block is externally provided with a thread.

Preferably, the big footpath end of the telescopic link of the reset structure is provided with a limiting protruding block, and the end part of the small footpath end of the telescopic link is provided with threads and is sleeved with a nut.

Preferably, the length of the telescopic rod in the contraction state is greater than that of the clamping block fixing holes, and the clamping block fixing holes are symmetrically provided with a plurality of clamping block fixing holes.

Preferably, the rotary fixing piece is provided with a connecting and fixing hole at the end of the small-diameter drill rod.

Preferably, the elastic clamping block is internally provided with a protruding part.

Preferably, a sealing gasket is arranged inside the elastic clamping block.

The utility model has the advantages that:

through the simple combined joint, the drill rods can be effectively and quickly replaced or increased and decreased, the cost is low, and the maintenance is convenient; through the connection among connector, elasticity clamp splice and the rotary fixing spare, the effectual silt that produces of having cut off the drilling in-process has reduced the harm of drilling in-process silt drilling rod.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the description of embodiments of the invention, and are not intended to limit the invention. In the drawings:

FIG. 1 is a schematic view of the connection structure of the present invention;

FIG. 2 is a schematic view of a connector structure;

FIG. 3 is a schematic view of the internal structure of the elastic clamping block;

FIG. 4 is a schematic view of an external structure of the elastic clamping block;

FIG. 5 is a schematic view of a rotating fixture;

labeled as: 1-connecting head, 2-large diameter drill rod, 3-small diameter drill rod, 4-elastic clamping block, 5-rotary fixing piece, 6-clamping block fixing hole, 7-telescopic rod, 8-spring and 9-connecting fixing hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 5, a drill pipe sub includes a coupling head 1, an elastic clamping block 4, and a rotary fixing member 5. The drill rods are connected through a connector 1, an elastic clamping block 4 is sleeved outside the connector 1, the elastic clamping block 4 is provided with a clamping block fixing hole 6, a reset structure is arranged in the clamping block fixing hole 6, and a rotary fixing piece 5 is arranged outside the elastic clamping block 4; the reset structure comprises a telescopic rod 7 and a spring 8, the telescopic rod 7 is arranged in the clamping block fixing hole 6, and the springs 8 are arranged at two ends of the telescopic rod 7.

The utility model discloses a big footpath drilling rod 2 and path drilling rod 3 are connected to connector 1. The elastic clamping blocks 4 are pulled open, the telescopic rod 7 is unfolded, springs 8 at two ends of the telescopic rod 7 are compressed, the telescopic rod is sleeved with the small-diameter drill rod 3 and moves to the connector 1, the elastic clamping blocks 4 are loosened, the springs 8 reset the elastic clamping blocks to be closed, and the connector 1 is wrapped. The rotary fixing piece 5 is sleeved on the small-diameter drill rod 3, the elastic clamping block 4 is screwed down through threads, and the rotary fixing piece 5 is fixed at the connecting and fixing hole 9 after the elastic clamping block is in place.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drill rod reducing joint is characterized by comprising a connector, an elastic clamping block and a rotary fixing piece, wherein a drill rod is connected through the connector, the elastic clamping block is sleeved outside the connector, the elastic clamping block is provided with a clamping block fixing hole, a reset structure is arranged in the clamping block fixing hole, and the rotary fixing piece is arranged outside the elastic clamping block; the reset structure comprises a telescopic rod and a spring, the telescopic rod is arranged in the clamping block fixing hole, and the spring is arranged at two ends of the telescopic rod.

2. The drill pipe reducer joint according to claim 1, wherein the elastic clamping block is externally provided with a protruding portion, the diameter of the protruding portion of the elastic clamping block is reduced from large to small, and the elastic clamping block is externally provided with a thread.

3. The drill rod reducer union according to claim 1, wherein the large diameter end of the telescopic rod of the resetting structure is provided with a limiting protrusion block, and the end part of the small diameter end of the telescopic rod is provided with threads and sleeved with a nut.

4. The drill pipe reducer union according to claim 1, wherein the telescopic rod has a length in a contracted state greater than that of the clamp block fixing holes, and a plurality of clamp block fixing holes are symmetrically arranged.

5. The drill pipe sub of claim 1, wherein the rotary fastener member has a connection fastening hole at the end of the small diameter drill pipe.

6. The drill pipe sub of claim 1, wherein the resilient clamp blocks have protrusions formed therein.

7. The drill pipe sub of claim 1, wherein the resilient clamping blocks are provided with a gasket therein.