CN217681621U

CN217681621U - Expansion casing for drilling process

Info

Publication number: CN217681621U
Application number: CN202221800823.9U
Authority: CN
Inventors: 姜来峰; 舒智; 刘帅; 齐占凯; 姜全; 李保龙; 姜水; 朱道贵
Original assignee: Fufang Drilling Engineering Group Co ltd
Current assignee: Fufang Drilling Engineering Group Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-10-28
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to a bellows technical field just discloses an expansion sleeve for drilling process, and it includes first body and second body, the bottom of first body is connected with the top of second body, the bottom fixed mounting of first body has the second annular plate, and has seted up the second ring channel in the bottom of second annular plate, first ring channel has been seted up on the top of second body, and has first annular plate at the inside fixed mounting of first ring channel, the second annular plate of first body bottom is pegged graft in the first ring channel at second body top, and the first annular plate in the first ring channel is pegged graft in the second ring channel of second annular plate bottom, first draw-in groove has evenly been seted up to the both sides of first ring channel inner wall, the utility model discloses, when connecting two bellows, need not weld, can accomplish the connection between two bellows fast through the structure of block to the mode of connection is simple swift.

Description

Expansion casing for drilling process

Technical Field

The utility model relates to a bellows technical field, concretely relates to expansion sleeve for probing process.

Background

The expansion casing pipe is characterized by that it utilizes a metal circular pipe (or special-shaped casing pipe) with large plastic deformation to make a section corrugated pipe (or cylindrical pipe) whose diameter is less than that of drilled hole, then the section corrugated pipe (or cylindrical pipe) is placed into the preset (isolated) depth hole section, and uses mechanical force or hydraulic pressure as power, and adopts cold expanding process to make its deformation and expansion increase so as to make its internal diameter be expanded to required size, and then the expanded formed novel casing pipe can be used for protecting wall, and can save hole diameter and plug complex stratum.

At present expansion bellows connected mode is subject to heterotypic cross-section and heterotypic cross-section inflation sealing requirement, can't use threaded connection, generally can adopt the welded mode to be connected between the bellows, but this kind of connected mode needs welding personnel and the welding tool that the welding used, and operating time is longer, and can waste a large amount of manual works, provides the expansion bellows of being convenient for to connect for this application.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention aims to provide a problem of an expansion casing for drilling process.

The utility model discloses a realize through following technical scheme: an expansion sleeve for a drilling process comprises a first pipe body and a second pipe body, wherein the bottom end of the first pipe body is connected with the top end of the second pipe body, a second annular plate is fixedly installed at the bottom end of the first pipe body, a second annular groove is formed in the bottom of the second annular plate, a first annular groove is formed in the top end of the second pipe body, a first annular plate is fixedly installed inside the first annular groove, the second annular plate at the bottom end of the first pipe body is connected into the first annular groove at the top of the second pipe body in an inserting mode, the first annular plate in the first annular groove is connected into the second annular groove at the bottom of the second annular plate in an inserting mode, first clamping grooves are evenly formed in two sides of the inner wall of the first annular groove, first grooves are formed in the inner wall and the outer wall of the second annular plate, first clamping blocks are movably installed inside each first groove, the first clamping blocks are the same in number as the first clamping grooves, each first clamping block extends out of the first groove and is respectively clamped in the corresponding first clamping groove, second clamping blocks are evenly arranged on the inner wall and the outer wall of the first annular plate, the second clamping blocks extend out of the second annular groove, and the second clamping grooves, and the second clamping blocks are respectively, and the second clamping grooves.

The outer wall of the second annular plate is tightly attached to the inner wall of the first annular groove, and the outer wall of the first annular plate is tightly attached to the inner wall of the second annular groove.

The inner wall of the first groove is fixedly connected with two first positioning rods, two first positioning holes are formed in the first fixture block, the two first positioning rods in the first groove are movably inserted into the two first positioning holes in the first fixture block respectively, a first spring is sleeved on each first positioning rod, and two ends of each first spring are fixedly connected to the inner wall of the first groove and the side wall of the first fixture block respectively.

The inner wall of the second groove is fixedly connected with two second positioning rods, two second positioning holes are formed in the second clamping block, the two second positioning rods in the second groove are movably inserted into the two second positioning holes in the second clamping block respectively, a second spring is sleeved on each second positioning rod, and two ends of each second spring are fixedly connected to the inner wall of the second groove and the side wall of the second clamping block respectively.

The bottom of the first clamping block extending out of the side face of the first groove is provided with a first inclined plane, and the bottom of the second clamping block extending out of the side face of the second groove is provided with a second inclined plane.

The beneficial effects of the utility model reside in that:

the utility model connects the first pipe body and the second pipe body, the second annular plate at the bottom end of the first pipe body is inserted in the first annular groove at the top end of the second pipe body, so that the first annular plate in the first annular groove is inserted in the second annular groove at the bottom of the second annular plate, in the process of insertion, the inclined planes at the bottoms of the second fixture blocks at two sides of the inner wall of the second annular groove can move in the second groove by being extruded, so that the second fixture block can move along the second positioning rod, the second fixture block can be completely contracted in the second groove and the second spring can be extruded together, then the inclined planes at the bottoms of the first fixture blocks at two sides of the outer wall of the second annular plate can move in the first groove by being extruded, so that the first fixture block can move along the first positioning rod, the first clamping block is completely contracted in the first groove and extrudes the first spring together, when the second annular plate is completely inserted in the first annular groove, the position of the first groove on the second annular plate corresponds to the position of the first clamping groove on the inner wall of the first annular groove, the position of the second groove on the inner wall of the second annular groove corresponds to the position of the second clamping groove on the outer wall of the first annular plate, and finally the first spring and the second spring release elasticity, so that the first clamping block is jacked to be clamped in the first clamping groove, the second clamping block is jacked to be clamped in the second clamping groove, the connection between the first pipe body and the second pipe body is completed, a worker does not need to weld the first pipe body, and the operation is simple and rapid.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a schematic structural view of the first tube and the second tube of the present invention;

fig. 3 is a schematic structural view of the connection between the first pipe and the second pipe of the present invention;

fig. 4 is an enlarged schematic view of the utility model at a;

fig. 5 is an enlarged schematic structural diagram of the utility model B.

Description of the reference numerals:

1. a first pipe body; 2. a second tube; 3. a first annular groove; 4. a first annular plate; 5. a second annular plate; 6. a second annular groove; 7. a first card slot; 8. a second card slot; 9. a first groove; 10. a first clamping block; 11. a second groove; 12. a second fixture block; 13. a first positioning hole; 14. a first positioning rod; 15. a first spring; 16. a second positioning hole; 17. a second positioning rod; 18. a second spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the above description of the present invention, it should be noted that the terms "one side" and "the other side" are used for indicating the position or the positional relationship based on the position or the positional relationship shown in the drawings, or the position or the positional relationship which is usually placed when the product of the present invention is used, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Further, the term "identical" and the like do not mean that the components are absolutely required to be identical, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.

As shown in fig. 1 to 5, in the first embodiment, the first embodiment includes a first tube 1 and a second tube 2, a bottom end of the first tube 1 is connected to a top end of the second tube 2, a second annular plate 5 is fixedly mounted at a bottom end of the first tube 1, and a second annular groove 6 is formed at a bottom of the second annular plate 5, a first annular groove 3 is formed at a top end of the second tube 2, and a first annular plate 4 is fixedly mounted inside the first annular groove 3, the second annular plate 5 at the bottom end of the first tube 1 is inserted into the first annular groove 3 at a top of the second tube 2, and the first annular plate 4 inside the first annular groove 3 is inserted into the second annular groove 6 at a bottom of the second annular plate 5, first grooves 7 are uniformly formed at two sides of an inner wall of the first annular groove 3, first grooves 9 are formed on an inner wall and an outer wall of the second annular plate 5, and first clamping blocks 10 are movably mounted inside each first groove 9, a number of the first clamping blocks 10 is the same as that of the first clamping grooves 7, and each first clamping block 10 extends out of each first groove 9, and a corresponding clamping block 12 is formed on an inner wall of each second annular plate 4, and a corresponding clamping block 11 is formed on an inner wall of each second annular groove 11, and a corresponding clamping block 11 is formed on each clamping block 11, and corresponding clamping groove 12, and corresponding clamping block 11, and corresponding to each clamping groove 12, and corresponding to each clamping groove 6, and corresponding clamping block 11, and corresponding to each clamping block 11, and corresponding clamping groove 12, and each clamping block 11, and each clamping groove 12, and each clamping groove 6.

In the second embodiment, on the basis of the first embodiment, the outer wall of the second annular plate 5 is tightly attached to the inner wall of the first annular groove 3, and the outer wall of the first annular plate 4 is tightly attached to the inner wall of the second annular groove 6.

Third embodiment, on the basis of the first embodiment, two first positioning rods 14 are fixedly connected to the inner wall of the first groove 9, two first positioning holes 13 are formed in the first fixture block 10, the two first positioning rods 14 in the first groove 9 are respectively movably inserted into the two first positioning holes 13 on the first fixture block 10, each first positioning rod 14 is sleeved with a first spring 15, and two ends of each first spring 15 are respectively and fixedly connected to the inner wall of the first groove 9 and the side wall of the first fixture block 10.

In the fourth embodiment, on the basis of the first embodiment, two second positioning rods 17 are fixedly connected to the inner wall of the second groove 11, two second positioning holes 16 are formed in the second fixture block 12, the two second positioning rods 17 in the second groove 11 are movably inserted into the two second positioning holes 16 in the second fixture block 12, a second spring 18 is sleeved on each second positioning rod 17, and two ends of each second spring 18 are fixedly connected to the inner wall of the second groove 11 and the side wall of the second fixture block 12.

In the fifth embodiment, on the basis of the first embodiment, the bottom of the first latch 10 extending out of the side surface of the first groove 9 is set as a first inclined surface, and the bottom of the second latch 12 extending out of the side surface of the second groove 11 is set as a second inclined surface.

The working principle is as follows: when the first tube body 1 and the second tube body 2 are connected, the second annular plate 5 at the bottom end of the first tube body 1 is inserted into the first annular groove 3 at the top end of the second tube body 2, so that the first annular plate 4 in the first annular groove 3 is inserted into the second annular groove 6 at the bottom of the second annular plate 5, in the process of insertion, the inclined planes two at the bottoms of the second clamping blocks 12 at the two sides of the inner wall of the second annular groove 6 are extruded to move into the second groove 11, so that the second clamping blocks 12 move along the second positioning rods 17, the second clamping blocks 12 completely contract into the second groove 11 and press the second springs 18 together, then the inclined planes at the bottoms of the first clamping blocks 10 at the two sides of the outer wall of the second annular plate 5 are extruded to move into the first groove 9, so that the first clamping blocks 10 move along the first positioning rods 14, so that the first clamping blocks 10 completely contract into the first groove 9 and press the first springs 15 together, when the second annular plate 5 is completely inserted into the first annular groove 3, the position of the first clamping blocks 5 on the second annular plate 5 is clamped with the first positioning rods 9, so that the elastic force of the second annular plate 7 corresponds to the inner wall of the second annular groove 6, and the second annular groove 7, and the second annular plate 7 is clamped on the inner wall of the second annular groove 6, so that the second annular groove 6, and the second annular groove 4, and the second annular groove 6, and the second annular plate is clamped in the second annular groove 4, and the second annular groove, and the second annular plate 5, and the second annular groove 4, and the second annular groove is completely released.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. An expansion casing for drilling process, includes first body and second body, its characterized in that: the bottom end of the first pipe body is connected with the top end of the second pipe body, a second annular plate is fixedly mounted at the bottom end of the first pipe body, a second annular groove is formed in the bottom of the second annular plate, a first annular groove is formed in the top end of the second pipe body, a first annular plate is fixedly mounted inside the first annular groove, the second annular plate at the bottom end of the first pipe body is inserted into the first annular groove at the top of the second pipe body, the first annular plate in the first annular groove is inserted into the second annular groove at the bottom of the second annular plate, first clamping grooves are uniformly formed in two sides of the inner wall of the first annular groove, first grooves are formed in the inner wall and the outer wall of the second annular plate, first clamping blocks are movably mounted inside each first groove, the first clamping blocks and the first clamping grooves are the same in number, each first clamping block extends out of the first groove and is clamped in the corresponding first clamping groove, second clamping grooves are uniformly formed in the inner wall and the outer wall of the first annular plate, second clamping blocks and the second clamping grooves are movably mounted in the second clamping grooves, and the second clamping blocks extend out of the second clamping grooves.

2. An expandable casing for drilling procedures as claimed in claim 1, wherein: the outer wall of the second annular plate is tightly attached to the inner wall of the first annular groove, and the outer wall of the first annular plate is tightly attached to the inner wall of the second annular groove.

3. An expandable casing for drilling procedures as claimed in claim 1, wherein: the inner wall of the first groove is fixedly connected with two first positioning rods, two first positioning holes are formed in the first fixture block, the two first positioning rods in the first groove are movably inserted into the two first positioning holes in the first fixture block respectively, a first spring is sleeved on each first positioning rod, and two ends of each first spring are fixedly connected to the inner wall of the first groove and the side wall of the first fixture block respectively.

4. An expandable casing for drilling processes according to claim 1, wherein: the inner wall of the second groove is fixedly connected with two second positioning rods, two second positioning holes are formed in the second fixture block, the two second positioning rods in the second groove are movably inserted into the two second positioning holes in the second fixture block respectively, a second spring is sleeved on each second positioning rod, and two ends of the two second springs are fixedly connected to the inner wall of the second groove and the side wall of the second fixture block respectively.

5. An expandable casing for drilling processes according to claim 1, wherein: the bottom of the first clamping block extending out of the side face of the first groove is provided with a first inclined plane, and the bottom of the second clamping block extending out of the side face of the second groove is provided with a second inclined plane.