CN220726205U

CN220726205U - Connecting ring for rotary drilling rod

Info

Publication number: CN220726205U
Application number: CN202321421556.9U
Authority: CN
Inventors: 林恩波; 尤敦成; 孟晓东; 柴晓跃; 王冬冬
Original assignee: Xuzhou Shenwei Foundation Machinery Technology Co ltd
Current assignee: Xuzhou Shenwei Foundation Machinery Technology Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2024-04-05
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a connecting ring for a rotary drilling rod, which belongs to the technical field of connecting rings, and comprises: the connecting ring body and the rotary drilling rod are connected; the internal thread lantern ring is arranged in the top inner wall of the connecting ring body; the external thread loop bar is integrally formed at the bottom of the connecting ring body; the top limiting substrate is integrally formed at the top of the rotary drilling rod; the rotary clamping plate is movably arranged in the inner cavity of the top limiting substrate through a shaft; the spiral spring is connected in the intermediate layer of rotatory cardboard and axle, and rotatory cardboard can pass external screw thread loop bar and automatic upset block is in the inner chamber of intermediate ring, then will dig the drilling rod soon and fix by automatic block, need not use connection structure such as screw, but grafting automatic fixation, simple structure, convenient assembling.

Description

Connecting ring for rotary drilling rod

Technical Field

The utility model relates to the technical field of connecting rings, in particular to a connecting ring for a rotary drilling rod.

Background

The rotary drilling rig is used as advanced pile foundation construction equipment, can drill the ground, dig deep holes for piling on the ground in a rotary way, has the incomparable advantages of other piling technologies, and is widely applied to foundation construction projects of various scales.

When the rotary drilling machine drill rod is manufactured, a 27SiMn and 35CrMo seamless steel pipe is usually used for an inner layer rod, 27SiMn and 35CrMo are national standard common marks, the purchase is convenient, 27SiMn is usually used on a hydraulic prop, almost no alloy is contained, the hardenability of a thick-wall steel pipe is poor, the performance of the inner, middle and outer positions of the steel pipe is uneven, and the toughness is poor; 35CrMo is commonly used on gas cylinders, has high carbon content and poor weldability, and is easy to generate quenching cracks in quenching and tempering heat treatment.

The rotary drilling rod generally uses a single longer drilling rod or a plurality of groups of shorter drilling rods to splice and install so as to finish the work of the drilling rod, and in the use process, because the length of the drilling rod is fixed, the condition of a use region cannot be met, a drilling rod lengthening section is often required to be added on the drilling rod, and in the process of installing the lengthening section of the drilling rod, the traditional welding process is used, the toughness is poor, the strength is not high, and therefore, the external structure is required to be assembled and connected.

The technical characteristics of the reference of the rotary drilling rod lengthening section convenient to install in the Chinese patent 'CN202221504614. X' are that the balance stability of the lengthening section is higher when moving through the second round balls, so that a positioning rod is convenient to insert into a fixing groove to position the lengthening section, the lengthening section can be assembled in a plurality of groups of balls in a combined mode in the reference of the installation of the lengthening section through a first bolt, then the lengthening section is assembled and fixed through a bolt and other structures, the traditional bolt threaded connection and fixation not only needs a plurality of groups of bolts to be connected and fixed, but also multi-station construction operation can occur in the construction process, and the assembly is complex and cannot be rapidly assembled.

For this purpose, we propose a connecting ring for rotary drilling rods.

Disclosure of Invention

The utility model aims to provide a connecting ring for a rotary drilling rod, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: dig go-between for drilling rod soon includes:

a connecting ring body;

the internal thread lantern ring is arranged in the top inner wall of the connecting ring body;

the external thread loop bar is integrally formed at the bottom of the connecting ring body;

the top limiting base plate is integrally formed at the top of the rotary drilling rod;

the rotary clamping plate is movably arranged in the inner cavity of the top limiting substrate through a shaft;

and the scroll spring is connected in the interlayer of the rotary clamping plate and the shaft.

Further, the overturning angle of the rotary clamping plate is 0-90 degrees.

Further, the inner wall of external screw thread loop bar sets up the location spout, and rotatory cardboard activity laminating is in the inner wall of location spout.

Further, the junction of external screw thread loop bar and go-between body sets up the intermediate ring, and the inner wall of intermediate ring sets up interior counter bore, and interior counter bore and location spout intercommunication.

Further, the outer diameter of the external thread loop bar is equal to the inner diameter of the internal thread loop, and the external thread loop bar is in threaded connection with the inner wall of the internal thread loop.

Compared with the prior art, the utility model has the beneficial effects that: in the installation process, the connecting ring body is arranged to bidirectionally connect two groups of rotary drilling rods, the top of each rotary drilling rod is matched with the rotary clamping plate arranged through the spiral spring, the rotary clamping plate can pass through the external thread sleeve rod and automatically turn over to be clamped in the inner cavity of the middle ring, then the rotary drilling rods are automatically clamped and fixed, the connecting structures such as screws are not needed, the rotary drilling rods can be automatically fixed in a plugging manner, and the rotary drilling rod is simple in structure and convenient to assemble.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

fig. 3 is a schematic view of a rotary drilling rod connection structure according to the present utility model.

In the figure: 1. a connecting ring body; 2. an internally threaded collar; 3. an external thread loop bar; 4. rotary digging a drill rod; 5. a top limit substrate; 6. rotating the clamping plate; 7. a spiral spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: dig go-between for drilling rod soon includes: the connecting ring body 1, dig the drilling rod 4 soon and install in the inner wall of connecting ring body 1, the internal thread lantern ring 2, the upper and lower both ends of connecting ring body 1 all can be provided with external thread loop bar 3, then can all connect dig drilling rod 4 soon at the both ends of connecting ring body 1, the internal thread lantern ring 2 is seted up in the top inner wall of connecting ring body 1, external thread loop bar 3 integrated into one piece is in the bottom of connecting ring body 1, top spacing base plate 5 integrated into one piece is at the top of dig drilling rod 4 soon, top spacing base plate 5 is when diging drilling rod 4 soon connects, at first pass external thread loop bar 3, then alternate in the inner chamber of external thread loop bar 3, then pop out rotatory cardboard 6 through spiral spring 7, then rotatory cardboard 6 pops the joint in the intermediate ring inboard, spacing is fixed, rotatory cardboard 6 is through the axle activity setting in the inner chamber of top spacing base plate 5, spiral spring 7 is connected in rotatory cardboard 6 and the intermediate layer of axle.

Referring to fig. 3, the turning angle of the rotating clamping plate 6 is 0 ° to 90 °, and the rotating clamping plate 6 automatically pops up through the spiral spring, so that the rotating clamping plate 6 can be turned over to automatically pop up and be clamped and fixed;

referring to fig. 2 and 3, a positioning chute is formed on the inner wall of the externally threaded sleeve rod 3, a rotary clamping plate 6 is movably attached to the inner wall of the positioning chute, the rotary clamping plate 6 can slide in the positioning chute in a limited manner and is in an inclined state, and when moving to the top, the rotary clamping plate is turned over to a horizontal state to be clamped and fixed;

referring to fig. 2, an intermediate ring is arranged at the joint of the external thread loop bar 3 and the connecting ring body 1, an inner counter bore is arranged on the inner wall of the intermediate ring, the inner counter bore is communicated with the positioning chute, a counter bore clamped by the rotary clamping plate 6 is reserved in the intermediate ring, the rotary clamping plate 6 is clamped at the top of the counter bore, and the rotary clamping plate is in limit fit, and is automatically clamped for convenient connection and fixation during installation;

referring to fig. 1 and 2, the external diameter of the external thread sleeve rod 3 is equal to the internal diameter of the internal thread sleeve ring 2, and the external thread sleeve rod 3 is screwed into the internal wall of the internal thread sleeve ring 2, and when screwed, the external thread sleeve rod 3 is screwed with the internal thread sleeve ring 2, so that the external thread sleeve rod can be spliced.

Examples: in the process of installing the rotary drilling rod, the rotary drilling rod 4 passes through the external thread sleeve rod 3, then the rotary clamping plate 6 at the top of the rotary drilling rod 4 is ejected and clamped in the inner wall of the middle ring through the scroll spring 7, and then the other group of rotary drilling rods 4 are spliced in the other group of external thread sleeve rods 3.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Dig go-between for drilling rod soon, its characterized in that includes:

a connecting ring body (1);

the inner thread lantern ring (2), the inner thread lantern ring (2) is arranged in the top inner wall of the connecting ring body (1);

the external thread loop bar (3), the external thread loop bar (3) is integrally formed at the bottom of the connecting ring body (1);

the top limiting base plate (5), the top limiting base plate (5) is integrally formed at the top of the rotary drilling rod (4);

the rotary clamping plate (6) is movably arranged in the inner cavity of the top limit substrate (5) through a shaft;

and the scroll spring (7), the scroll spring (7) is connected in the interlayer of the rotary clamping plate (6) and the shaft.

2. The connecting ring for rotary drilling rods according to claim 1, wherein: the overturning angle of the rotary clamping plate (6) is 0-90 degrees.

3. The connecting ring for rotary drilling rods according to claim 1, wherein: the inner wall of the external thread loop bar (3) is provided with a positioning chute, and the rotary clamping plate (6) is movably attached to the inner wall of the positioning chute.

4. A connecting ring for rotary drill rods as recited in claim 3, wherein: the connecting part of the external thread loop bar (3) and the connecting ring body (1) is provided with a middle ring, the inner wall of the middle ring is provided with an inner counter bore, and the inner counter bore is communicated with the positioning chute.

5. The connecting ring for rotary drilling rods according to claim 1, wherein: the external diameter of the external thread sleeve rod (3) is equal to the internal diameter of the internal thread sleeve ring (2), and the external thread sleeve rod (3) is in threaded connection with the inner wall of the internal thread sleeve ring (2).