CN214463953U

CN214463953U - Locking back-off that moves connects

Info

Publication number: CN214463953U
Application number: CN202023283425.8U
Authority: CN
Inventors: 韦俨修; 熊正然; 陈翰
Original assignee: Guanghan Hongcheng Petroleum Tools Co ltd
Current assignee: Guanghan Hongcheng Petroleum Tools Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-22
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses an anti-loosening back-off connector, including the connector, the bottom of connector is equipped with logical groove, and the top that leads to the groove and the inside that is located the connector are equipped with a screw hole, and the top of a screw hole and the inside that is located the connector are equipped with the spacing groove, and the inside sliding connection that leads to the groove has the cover of buckleing that expands, and the bottom fixedly connected with toper cover of the cover that expands, the outside of toper cover are equipped with an external screw thread, and the outside of toper cover is equipped with the notch, and the inside of toper cover is equipped with the spout, compares with prior art, the beneficial effects of the utility model are that: connect fixedly through connector internal thread connection bloated dabber, through fishing thing and the relative knot of external screw thread, mutually support of push rod, slide, pressure spring, fixture block and draw-in groove to prevent not hard up of connector and drop, through mutually supporting of bolt, No. two screw holes, recess, spacing groove and spacing slide bar, be convenient for carry on spacingly to bloated dabber, prevent to drop the loss.

Description

Locking back-off that moves connects

Technical Field

The utility model relates to a back-off connects technical field, specifically is an anti-loosening back-off connects.

Background

The back-off connector is also called a back-off spear and refers to a special tool for pouring out a clamped drill string above a clamping point in the drilling and well repairing processes. The reverse-buckling operation for dealing with the drill sticking accident can replace a male cone. When fishing or back-off, if the fish is blocked or can not be fallen, the fish can be retreated from the back-off joint, and the fishing drilling tool can be taken out. Current back-off connects and just leads to the fact not hard up or drop from the inside that connects easily through single threaded connection, causes the unable fishing, and the poor stability of integral connection at the in-process that uses.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-looseness's back-off connects to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an anti-loosening back-off joint comprises a connector, wherein a through groove is formed in the bottom of the connector, a first threaded hole is formed above the through groove and inside the connector, a limiting groove is formed above the first threaded hole and inside the connector, an expansion buckle sleeve is connected inside the through groove in a sliding mode, a conical sleeve is fixedly connected to the bottom of the expansion buckle sleeve, a first external thread is arranged on the outer side of the conical sleeve, a notch is formed in the outer side of the conical sleeve, a sliding groove is formed in the inner portion of the conical sleeve, a sliding plate is connected inside the sliding groove in a sliding mode, a clamping block is fixedly connected to one side of the sliding plate, a push rod is fixedly connected to the other side of the sliding plate, a pressure spring is arranged between the sliding plate and the sliding groove and outside the push rod, an expansion mandrel is connected to the inner portions of the expansion buckle sleeve and the conical sleeve in a sliding mode, and the upper surface of the expansion mandrel is in threaded connection with the first threaded hole, the inside sliding connection of bloated dabber has spacing slide bar.

Preferably, the top of spacing slide bar extends to the inside and the top both sides of spacing groove and is equipped with the recess, the both sides of spacing groove and the inside of connector all are equipped with No. two screw holes, one side of No. two screw holes and the outside that is located the connector are equipped with the through-hole, the inside threaded connection of No. two screw holes has the bolt, the bottom of bolt mutually supports with the position of recess.

Preferably, a clamping groove is formed in the outer side of the middle of the expansion core shaft, and one end of the clamping block penetrates through the conical sleeve to be matched with the clamping groove.

Preferably, one end of the push rod passes through the sliding groove and is in sliding connection with the conical sleeve.

Preferably, the upper surface of the connector is provided with a second external thread.

Compared with the prior art, the beneficial effects of the utility model are that: connect fixedly through connector internal thread connection bloated dabber, through fishing thing and the relative knot of external screw thread, mutually support of push rod, slide, pressure spring, fixture block and draw-in groove to prevent not hard up of connector and drop, through mutually supporting of bolt, No. two screw holes, recess, spacing groove and spacing slide bar, be convenient for carry on spacingly to bloated dabber, prevent to drop the loss.

Drawings

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

fig. 2 is an enlarged view of a point a in fig. 1 according to the present invention;

fig. 3 is a sectional structure view of the taper sleeve of the present invention.

In the figure: 1. a connector; 2. expanding the mandrel; 3. expanding a buckle sleeve; 4. a conical sleeve; 5. a limiting sliding rod; 6. a first external thread; 7. a through groove; 8. a first threaded hole; 9. a limiting groove; 10. a notch; 11. a push rod; 12. a slide plate; 13. a clamping block; 14. a card slot; 15. a pressure spring; 16. a chute; 17. a second threaded hole; 18. a groove; 19. a second external thread; 20. a bolt; 21. and a through 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

an anti-loosening back-off joint comprises a connector 1, wherein a through groove 7 is formed in the bottom of the connector 1, a first threaded hole 8 is formed above the through groove 7 and located inside the connector 1, a limiting groove 9 is formed above the first threaded hole 8 and located inside the connector 1, an expansion buckle sleeve 3 is connected inside the through groove 7 in a sliding mode, a conical sleeve 4 is fixedly connected to the bottom of the expansion buckle sleeve 3, a first external thread 6 is arranged on the outer side of the conical sleeve 4, a notch 10 is formed in the outer side of the conical sleeve 4, a sliding groove 16 is formed inside the conical sleeve 4, a sliding plate 12 is connected inside the sliding groove 16 in a sliding mode, a clamping block 13 is fixedly connected to one side of the sliding plate 12, a push rod 11 is fixedly connected to the other side of the sliding plate 12, a pressure spring 15 is arranged on the outer side of the push rod 11 and located between the sliding plate 12 and the sliding groove 16, an expansion core shaft 2 is connected inside the expansion buckle sleeve 3 and the conical sleeve 4 in a sliding mode, and the upper surface of the expansion core shaft 2 is in threaded connection with the first threaded hole 8, the inside sliding connection of bloated dabber 2 has spacing slide bar 5.

The top of the limiting sliding rod 5 extends to the inside of the limiting groove 9, grooves 18 are formed in two sides of the top, second threaded holes 17 are formed in two sides of the limiting groove 9 and the inside of the connector 1, through holes 21 are formed in one side of each second threaded hole 17 and the outer side of the connector 1, bolts 20 are connected to the inner threads of the second threaded holes 17 in a threaded mode, and the bottom of each bolt 20 is matched with the positions of the grooves 18 to fix the limiting sliding rod 5; a clamping groove 14 is formed in the outer side of the middle of the expansion core shaft 2, and one end of the clamping block 13 penetrates through the conical sleeve 4 to be matched with the clamping groove 14 in position, so that looseness is prevented; one end of the push rod 11 passes through the chute 16 and is connected with the conical sleeve 4 in a sliding way; the upper surface of the connector 1 is provided with a second external thread 19 for facilitating connection.

Specifically, when the utility model is used, firstly, the expansion buckle sleeve 3 is placed in the through groove 7, the expansion mandrel 2 passes through the expansion mandrel sleeve 3 and the conical sleeve 4, the top of the expansion mandrel 2 is fixed with the first threaded hole 8, meanwhile, the expansion mandrel 2 enables the conical sleeve 4 to expand outwards and then is connected to a fishing tool, the expansion mandrel 2 is buckled with the first external thread 6 during connection, the push rod 11 is extruded to move inwards during buckling, the push rod 11 drives the sliding plate 12 to move, the sliding plate 12 drives the clamping block 13 to move, and then the clamping block 13 is clamped in the clamping groove 14 to limit and prevent loosening, the stability is improved, however, the expansion mandrel 2 slides internally with the limiting sliding rod 5, when the expansion mandrel 2 is separated from the first threaded hole 8, the limiting sliding rod 5 is connected with the bolt 20 to prevent the expansion mandrel 2 from being separated and lost, when the expansion mandrel 2 needs to be disassembled, the expansion mandrel 2 is firstly rotated reversely, then the bolt 20 in the through hole 21 is rotated, the bolt 20 is disengaged from the recess 18 and the disassembly is completed.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" 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, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims

1. The anti-loosening inverted buckle connector comprises a connector (1) and is characterized in that a through groove (7) is arranged at the bottom of the connector (1), a threaded hole (8) is formed in the position, above the through groove (7), of the connector (1), a limiting groove (9) is formed in the position, above the threaded hole (8), of the connector (1), an expansion buckle sleeve (3) is connected to the inside of the through groove (7) in a sliding mode, a conical sleeve (4) is fixedly connected to the bottom of the expansion buckle sleeve (3), an external thread (6) is arranged on the outer side of the conical sleeve (4), a notch (10) is formed in the outer side of the conical sleeve (4), a sliding groove (16) is formed in the inside of the conical sleeve (4), a sliding plate (12) is connected to the inside of the sliding groove (16) in a sliding mode, and a clamping block (13) is fixedly connected to one side of the sliding plate (12), the opposite side fixedly connected with push rod (11) of slide (12), the outside of push rod (11) just is located and is equipped with pressure spring (15) between slide (12) and spout (16), the inside slip of buckle sleeve (3) and taper sleeve (4) expands has connect bloated dabber (2), the upper surface and No. one screw hole (8) threaded connection of bloated dabber (2), the inside slip connection of bloated dabber (2) has spacing slide bar (5).

2. A locking lug according to claim 1 wherein: the top of spacing slide bar (5) extends to the inside and the top both sides of spacing groove (9) and is equipped with recess (18), the both sides of spacing groove (9) and the inside of connector (1) all are equipped with No. two screw holes (17), the outside that one side of No. two screw holes (17) just is located connector (1) is equipped with through-hole (21), the internal thread of No. two screw holes (17) is connected with bolt (20), the bottom of bolt (20) and the position of recess (18) mutually support.

3. A locking lug according to claim 1 wherein: the middle outer side of the expansion core shaft (2) is provided with a clamping groove (14), and one end of the clamping block (13) penetrates through the conical sleeve (4) to be matched with the clamping groove (14).

4. A locking lug according to claim 1 wherein: one end of the push rod (11) penetrates through the sliding groove (16) to be connected with the conical sleeve (4) in a sliding mode.

5. A locking lug according to claim 1 wherein: the upper surface of the connector (1) is provided with a second external thread (19).