CN219953265U

CN219953265U - Drill rod joint

Info

Publication number: CN219953265U
Application number: CN202321090519.4U
Authority: CN
Inventors: 曹高峻; 陈爱勉; 林光杰; 倪镇坚
Original assignee: Wenzhou Zhenzhong Foundation Engineering Machinery Technology Co ltd
Current assignee: Wenzhou Zhenzhong Foundation Engineering Machinery Technology Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-11-03
Anticipated expiration: 2033-05-09

Abstract

The utility model relates to a drill rod joint, which comprises an outer joint and an inner joint, wherein the inner joint is connected with the outer joint through a pin shaft, a blind hole is formed in the inner joint, a through hole is correspondingly formed in the outer joint, the pin shaft passes through the through hole and is in conflict with the blind hole to connect the outer joint and the inner joint, and compared with a perforation design, the minimum sectional area of the inner joint is larger, the torsional rigidity and the torsional strength are improved, the abrasion is reduced, and the connection is tight.

Description

Drill rod joint

Technical Field

The utility model relates to a drill rod joint.

Background

Patent number CN202222714099.4 discloses a drill rod joint, wherein a perforation is arranged on an inner joint, a pin groove is arranged on an outer joint, a pin shaft penetrates through the perforation and the pin groove to connect the inner joint and the outer joint, and a bolt positioning pin shaft is arranged, so that in the use process, the perforation and the pin groove are worn, and the connection is not tight, so that mud leakage is caused.

Disclosure of Invention

In view of the technical problems in the background art, the utility model aims to provide a wear-resistant and tightly connected drill rod joint.

In order to solve the technical problems, the utility model adopts the following technical scheme: the drill rod connector comprises an outer connector and an inner connector, wherein the inner connector is connected with the outer connector through a pin shaft, a blind hole is formed in the inner connector, a through hole is correspondingly formed in the outer connector, the pin shaft penetrates through the through hole and is in interference with the blind hole, the number of the blind holes and the number of the through holes exceed two, the blind holes are arranged on the inner connector in a staggered mode, and the through holes are arranged on the outer connector in a staggered mode.

Preferably, one end of the inner joint is provided with an annular groove.

The utility model has the beneficial effects that the pin shaft passes through the through hole to be abutted against the blind hole so as to connect the outer joint and the inner joint, and compared with the perforation design, the minimum sectional area of the inner joint is larger, the torsional rigidity and the torsional strength are improved, the abrasion is reduced, and the connection is tight; the design of the dislocation of the height enables the minimum sectional area of the inner joint to be further increased, and the torsional rigidity and the torsional strength are correspondingly increased. Thus, the present utility model is a substantial feature and improvement over the prior art.

Drawings

The details and working principles of the embodiments and examples of the present utility model are described below with reference to the drawings.

Fig. 1 is a schematic structural view of the present utility model.

In the figure: 1. an outer joint; 2. an inner joint; 3. a pin shaft; 4. a blind hole; 5. an annular groove.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some, but not all, embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making inventive efforts are within the scope of this utility model.

Referring to the drawings, a drill rod joint in the embodiment of the present utility model comprises an outer joint 1 and an inner joint 2, wherein the inner joint 2 and the outer joint 1 are connected through a pin shaft.

The inner joint 2 is provided with a blind hole 4, the outer joint 1 is correspondingly provided with a through hole, the pin shaft 3 passes through the through hole and is in conflict with the blind hole 4, the number of the blind holes 4 and the number of the through holes exceed two, the blind holes 4 are arranged in a staggered mode on the inner joint 2, and the through holes are arranged in a staggered mode on the outer joint 1.

The pin shaft 3 passes through the through hole and is abutted against the blind hole 4 to realize connection of the inner joint and the outer joint, stress at the connection position designed by the blind hole 4 is relatively dispersed relative to the perforation design, the minimum sectional area of the inner joint 2 is larger, the torsional rigidity and the torsional strength are larger, the abrasion is small, the connection is kept tight, the minimum sectional area of the inner joint 2 is further increased due to the staggered design, and the torsional rigidity and the torsional strength are correspondingly increased.

The following optimizations or further description can be made on the basis of the above embodiments, respectively.

In addition, one end of the inner joint 2 is provided with an annular groove 5, a sealing ring is arranged in the annular groove 5, and the joint of the inner joint and the outer joint is sealed, so that the sealing performance is ensured.

In the description of the present specification, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "left," "right," etc. indicate or refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.

Claims

1. The utility model provides a drilling rod connects, includes outer joint (1) and nipple (2), nipple (2) with connect through round pin axle (3), its characterized in that between outer joint (1): be equipped with blind hole (4) on nipple (2), be provided with the through-hole on outer joint (1) corresponds, round pin axle (3) pass the through-hole with blind hole (4) conflict, blind hole (4) with the through-hole quantity exceeds two, blind hole (4) dislocation set on nipple (2), the through-hole dislocation set on outer joint (1).

2. A drill pipe joint according to claim 1, wherein: one end of the inner joint (2) is provided with an annular groove (5).