Quickly detachable centralizer for water well drill rod

Abstract

The centralizer comprises the drill rod, a connecting column is connected to the outer surface of the drill rod in a sleeved mode, second positioning blocks are arranged on the upper side and the lower side of the outer surface of the connecting column respectively, and first positioning blocks abut against the left side and the right side of the upper surface of each second positioning block respectively. The upper surface of the first positioning block is in threaded connection with a first fixing bolt, the first fixing bolt extends into the second positioning block, an embedding groove is formed in the outer surface of the first positioning block, the inner surface of the embedding groove is in threaded connection with a second fixing bolt, and the second fixing bolt extends into the connecting column. A modularized structure is formed among the first positioning block, the second positioning block and the connecting column, each module can be independently mounted and dismounted, the maintenance cost and difficulty are reduced, when a certain part is damaged, only the corresponding module needs to be replaced, the centralizer does not need to be wholly replaced, and the maintenance cost and difficulty are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a righting device of water well drill rod can quick detach, especially in righting device of water well drill rod can quick detach. BACKGROUND

[0002] In the water well drilling process, with the extension of the drill pipe length, affected by the drill pipe weight, formation condition change, drilling pressure, drilling speed and other factors, the drill bit is easy to deviate and shake, leading to the actual axis of the borehole deviating from the design axis, which not only affects the quality of the water well and the water yield, but also may cause economic losses and safety hazards, using the righting device can keep the well diameter and well wall smooth, reduce the wear of the well wall to the drilling tool, and play the role of preventing deviation, correcting deviation and stabilizing deviation.

[0003] When a part of the righting device is damaged, due to the lack of modular design, the damaged part cannot be replaced alone, and the entire righting device usually needs to be detached from the drill pipe for overall replacement, which increases the maintenance cost, especially for some high-priced righting devices, overall replacement will cause great economic waste. UTILITY MODEL CONTENTS

[0004] The utility model discloses a righting device of water well drill rod can quick detach, through the modular structure formed between the first positioning block, the second positioning block and the connecting column, each module can be installed and detached independently, when a part is damaged, only the corresponding module needs to be replaced, and the righting device does not need to be replaced as a whole, so that the maintenance cost and difficulty are reduced.

[0005] To achieve the above object, a righting device of water well drill rod can quick detach, comprising: a drill pipe, the outer surface of the drill pipe is sleeved with a connecting column, the outer surface of the connecting column is provided with second positioning blocks on the upper and lower sides, the upper surfaces of the second positioning blocks are provided with first positioning blocks on the left and right sides, the upper surfaces of the first positioning blocks are screw connected with first fixing bolts, the first fixing bolts extend to the interiors of the second positioning blocks, the outer surfaces of the first positioning blocks are provided with embedded grooves, and the inner surfaces of the embedded grooves are screw connected with second fixing bolts, and the second fixing bolts extend to the interiors of the connecting columns. The stability of the connection between the drill pipe and the connecting column is enhanced, and the multi-bolt fixing ensures that each part is accurately positioned and firmly installed.

[0006] According to the righting device of water well drill rod can quick detach, the number of second positioning blocks is several, and the number of first positioning blocks is correspondingly arranged with the second positioning blocks. A plurality of positioning blocks are correspondingly arranged, uniformly dispersed stress, improve the overall structure stability and reliability of the righting device.

[0007] According to the well drilling rod quick detachable centralizer, the inner surface of the connecting column is sleeved with the abutting column, and the abutting column is symmetrically arranged on the upper and lower sides of the outer surface of the connecting column.

[0008] According to the well drilling rod quick detachable centralizer, the upper surface of the abutting column is threadedly connected with the positioning bolt, and the positioning bolt extends to the inside of the connecting column.

[0009] According to the well drilling rod quick detachable centralizer, the number of the abutting columns is two, and the connecting column is located between the two abutting columns.

[0010] According to the well drilling rod quick detachable centralizer, the outer surface of the connecting column is provided with three second installation grooves, the inner surface of the three second installation grooves is provided with a limiting block, the outer surface of the limiting block is provided with a plurality of first installation grooves, the inner surface of each first installation groove is fixedly connected with a fixed column on the left and right sides, and the outer surface of the fixed column is rotatably connected with a rolling wheel.

[0011] According to the well drilling rod quick detachable centralizer, the outer surface of the limiting block is in abutment with the first limiting block and the second limiting block, and the number of the first limiting blocks corresponds to the limiting blocks.

[0012] The above-mentioned scheme has the beneficial effects that:

[0013] The first limiting block, the second limiting block, the first fixed bolt, the second fixed bolt and the connecting column are arranged, and a modular structure is formed between the first limiting block, the second limiting block and the connecting column, each module can be independently installed and disassembled, when a component is damaged, only the corresponding module needs to be replaced, and the centralizer does not need to be replaced as a whole, so that the maintenance cost and difficulty are reduced.

[0014] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in combination with the drawings and examples.

[0016] Figure 1 isometric view of the utility model of a water well drill rod fast detachable centralizer;

[0017] Figure 2 isometric view of the utility model of a water well drill rod fast detachable centralizer;

[0018] Figure 3 isometric view of the utility model of a water well drill rod fast detachable centralizer;

[0019] Figure 4 isometric view of the utility model Figure 3 structure enlarged view of A place in the middle.

[0020] Legend:

[0021] 1, drill rod; 2, resist the column; 3, positioning bolt; 4, connecting column; 5, first installation groove; 6, fixed column; 7, rolling wheel; 8, second installation groove; 9, limit block; 10, first locating block; 11, first fixed bolt; 12, second locating block; 13, fitting groove; 14, second fixed bolt. Specific embodiments

[0022] This part will describe the specific embodiments of the utility model in detail, the preferred embodiment of the utility model is shown in the attached drawings, the function of the attached drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0023] Refer to Figures 1-4The utility model discloses an embodiment water well drill rod can quick detachable centralizer, it includes: drill rod 1, the outer surface of drill rod 1 is connected with connecting column 4, and drill rod 1 provides the installation foundation and support for connecting column 4, so that connecting column 4 can stably be at the outside of drill rod 1, and the stability of subsequent component mounting position is guaranteed with the cooperation of both, the upper and lower sides of connecting column 4 outer surface all are provided with second locating block 12, and connecting column 4 provides the installation position for second locating block 12, and second locating block 12 can assist the positioning and installation of subsequent component through with the fixed of connecting column 4, guarantees the accuracy of each component installation position, the left and right sides of the upper surface of second locating block 12 all are in contact with first locating block 10, and first locating block 10 and second locating block 12 mutually contact with each other, and the relative position of both is preliminarily determined through this contact relationship, and the foundation is laid for subsequent fixing operation, the upper surface of first locating block 10 is connected with first fixed bolt 11, and first fixed bolt 11 extends to the inside of second locating block 12, and first fixed bolt 11 firmly connects first locating block 10 and second locating block 12 together, prevents the relative displacement of both in the use process, and the stability of positioning is guaranteed, the outer surface of first locating block 10 is provided with the embedded groove 13, and the embedded groove 13 provides the installation space for second fixed bolt 14, and the installation and operation of second fixed bolt 14 are convenient, the inner surface of embedded groove 13 is connected with second fixed bolt 14, and second fixed bolt 14 extends to the inside of connecting column 4, and second fixed bolt 14 fixes first locating block 10 and connecting column 4 together through with the cooperation of embedded groove 13 and connecting column 4, and the stability of whole structure is further enhanced.

[0024] The number of the second positioning blocks 12 is several, the number of the first positioning blocks 10 and the second positioning blocks 12 are correspondingly arranged, the plurality of second positioning blocks 12 and the corresponding number of the first positioning blocks 10 are matched, can play a positioning and fixing role at different positions of the connecting column 4, make the structure more stable, the inner surface of the connecting column 4 is sleeved with the resisting column 2, the connecting column 4 provides the mounting space and the guide for the resisting column 2, the resisting column 2 can further enhance the connection stability between the connecting column 4 and the drill rod 1 through the sleeving cooperation with the connecting column 4, the resisting column 2 is symmetrically arranged on the upper and lower sides of the outer surface of the connecting column 4, the symmetric arrangement mode makes the connecting column 4 receive more balanced force in the up-down direction, guarantees the stability and balance of the structure, the upper surface of the resisting column 2 is screw connected with the positioning bolt 3, and the positioning bolt 3 extends to the inside of the connecting column 4, the positioning bolt 3 fixes the resisting column 2 and the connecting column 4 together, prevents the displacement of the resisting column 2 in the use process, guarantees the stable supporting effect of the resisting column 2 on the connecting column 4, the number of the resisting column 2 is two, the connecting column 4 is located between the two resisting columns 2, the two resisting columns 2 are fixed and supported from the upper and lower sides of the connecting column 4, can better guarantee the stability and position accuracy of the connecting column 4, the outer surface of the connecting column 4 is provided with three second installation grooves 8, the second installation grooves 8 provide the mounting position for the limiting block 9, facilitate the installation and fixation of the limiting block 9, the inner surface of the three second installation grooves 8 is provided with the limiting block 9, the limiting block 9 can limit the position on the connecting column 4 through the cooperation with the second installation groove 8, and simultaneously provides support and installation basis for subsequent rolling wheels 7 and other components.

[0025] The outer surface of the limiting block 9 is provided with a plurality of first installation grooves 5, the first installation grooves 5 provide mounting spaces for the fixed column 6 and the rolling wheel 7, guarantee that the rolling wheel 7 can be normally installed and rotated on the limiting block 9, the inner surface of each first installation groove 5 is fixedly connected with the fixed column 6 on the left and right sides, the fixed column 6 provides a rotating shaft for the rolling wheel 7, so that the rolling wheel 7 can rotate around the fixed column 6 to realize the rolling function, the outer surface of the fixed column 6 is rotationally connected with the rolling wheel 7, the rolling wheel 7 can play a role of centralizing and reducing friction in the working process of the drill rod 1 through the rotational connection with the fixed column 6, guarantee the normal operation of the drill rod 1, the outer surface of the limiting block 9 is in abutment with the first positioning block 10 and the second positioning block 12, the abutment cooperation of the limiting block 9 with the first positioning block 10 and the second positioning block 12 further enhances the stability of the whole structure, prevents the relative displacement between components, the number of the first positioning block 10 and the limiting block 9 is correspondingly arranged, the corresponding number of the first positioning block 10 and the limiting block 9 are matched, can position and fix the structure at different positions, guarantee the stability and reliability of the whole centralizer structure.

[0026] Working principle: first, the connecting column 4 is sleeved on the outer surface of the drill pipe 1, the drill pipe provides stable support for the connecting column, ensures the stable installation position of the subsequent components, the two abutting columns 2 are respectively placed on the upper and lower sides of the outer surface of the connecting column 4, and the connecting column is located between the two abutting columns. Then use the positioning bolt 3, which is threaded on the upper surface of the abutting column 2 and extends into the connecting column 4, so that the abutting column is fixed on the connecting column, and the stability of the connecting column and the drill pipe is enhanced. A plurality of second positioning blocks 12 are arranged on the upper and lower sides of the outer surface of the connecting column 4, which are prepared for positioning and installing the subsequent components. The first positioning block 10 is placed on the left and right sides of the upper surface of the second positioning block 12, so that the relative position of the two is preliminarily determined. Then use the first fixing bolt 11, which is threaded from the upper surface of the first positioning block 10 and extends into the second positioning block 12, so that the first positioning block and the second positioning block are firmly connected. The second fixing bolt 14 is threaded in the embedded groove 13 on the outer surface of the first positioning block 10 and extends into the connecting column 4, so that the first positioning block and the connecting column are fixed together, further enhancing the stability of the structure. The limiting block 9 is placed in the inner surface of the three second installation grooves 8 on the outer surface of the connecting column 4, so that the limiting block limits its position by cooperating with the second installation groove, and provides support and installation basis for the rolling wheel and other components. At this time, the outer surface of the limiting block is in contact with the first positioning block and the second positioning block, enhancing the stability of the structure. The first installation groove 5 on the outer surface of the limiting block 9 is fixedly connected with the fixed column 6 on the left and right sides of the inner surface, and the rolling wheel 7 is rotatably connected with the outer surface of the fixed column 6, so that the rolling wheel can rotate around the fixed column. When the drill pipe works, it plays a role in centralizing and reducing friction.

[0027] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to the above-mentioned embodiments, within the knowledge range possessed by ordinary skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A quick detachable centralizer for a water well drill pipe, comprising: Drill pipe (1), the outer surface of the drill pipe (1) is sleeved with a connecting column (4), characterized in that: the connecting column (4) is provided with a second positioning block (12) on the upper and lower sides of the outer surface, the upper surface of the second positioning block (12) is provided with a first positioning block (10) on the left and right sides, the upper surface of the first positioning block (10) is screw connected with a first fixing bolt (11), and the first fixing bolt (11) extends into the second positioning block (12), the outer surface of the first positioning block (10) is provided with a fitting groove (13), the inner surface of the fitting groove (13) is screw connected with a second fixing bolt (14), and the second fixing bolt (14) extends into the connecting column (4).

2. The quick detachable centralizer for water well drill pipe according to claim 1, characterized in that: The number of the second positioning block (12) is several, and the number of the first positioning block (10) and the second positioning block (12) are correspondingly arranged.

3. The quick detachable centralizer for water well drill pipe according to claim 1, characterized in that: The inner surface of the connecting column (4) is sleeved with a butt column (2), and the butt column (2) is symmetrically arranged on the upper and lower sides of the outer surface of the connecting column (4).

4. The quick detachable centralizer for water well drill pipe according to claim 3, characterized in that: The upper surface of the butt column (2) is screw connected with a positioning bolt (3), and the positioning bolt (3) extends into the connecting column (4).

5. The quick detachable centralizer for water well drill pipe according to claim 3, characterized in that: The number of the butt column (2) is two, and the connecting column (4) is located between the two butt columns (2).

6. The quick detachable centralizer for water well drill pipe according to claim 1, characterized in that: The outer surface of the connecting column (4) is provided with three second installation grooves (8), the inner surface of the three second installation grooves (8) is provided with a limiting block (9), the outer surface of the limiting block (9) is provided with a plurality of first installation grooves (5), the inner surface of each first installation groove (5) is fixedly connected with a fixed column (6) on the left and right sides, and the outer surface of the fixed column (6) is rotatably connected with a rolling wheel (7).

7. A centralizer for quick detachable water well drill pipe according to claim 6, characterized in that: The outer surface of the limiting block (9) is in contact with the first positioning block (10) and the second positioning block (12), and the number of the first positioning block (10) corresponds to the number of the limiting block (9).

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