CN219345181U

CN219345181U - Expansion joint matched with deblocking

Info

Publication number: CN219345181U
Application number: CN202320286117.5U
Authority: CN
Inventors: 杨贵斌; 秦柏成
Original assignee: Beijing Haikang Weiye Petroleum Technology Co ltd
Current assignee: Beijing Haikang Weiye Petroleum Technology Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-07-14
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses an expansion joint matched with deblocking, which comprises an upper joint, wherein an annular sealing groove is formed in the inner edge surface of one end of the upper joint, a thread tooth is formed in the end, facing the annular sealing groove, of the inner edge surface of the upper joint, a connecting body is detachably connected with one end thread of the annular sealing groove, an outer pipe is detachably connected with one end thread of the connecting body, far away from the upper joint, of the connecting body, a piston is detachably and butt-jointed on the inner side of one end, far away from the upper joint, of the connecting body, a locking piece body is formed in the outer edge surface of one end, far away from the connecting body, of the piston, one end, facing the connecting body, of the outer pipe extends into the annular sealing groove, a locking piece sleeve capable of butt-jointing one side of the locking piece body is formed in the inner edge surface of the outer pipe, and the outer edge surface of the connecting body are all provided with clamping grooves in an annular array.

Description

Expansion joint matched with deblocking

Technical Field

The utility model belongs to the technical field of telescopic joints, and particularly relates to a telescopic joint matched with deblocking.

Background

The telescopic joint is one of matched tools of the compensation type pipe column, and can also be matched with the deblocking of the packer, so that the problem that the tonnage is overlarge due to the deblocking of the whole pipe column is avoided, the telescopic joint is in a closed state in the process of being put into the pipe, the shear pin is cut off through the pressing in the oil pipe, the locking block is retracted, the core pipe is released, the compensation distance is provided by matching with the deblocking of the packer, and the lifting of the overlarge tonnage is avoided.

The telescopic joint is a plurality of tubular structures that cup joint each other, but telescopic activity between the telescopic joint, and traditional telescopic joint exists sealed effectual condition between the tubular structure when using, leaks easily between the tubular structure to cause inconveniently.

Disclosure of Invention

The utility model aims to provide an expansion joint matched with deblocking so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an expansion joint matched with deblocking comprises an upper joint, wherein an annular sealing groove is formed in the inner edge surface of one end of the upper joint;

the inner edge of the upper joint faces towards one end of the annular sealing groove, a connecting body is detachably connected with one end of the upper joint, which is provided with the annular sealing groove, and an outer pipe is detachably connected with one end of the upper joint, which is far away from the inner side of one end of the upper joint, a piston is detachably connected with the inner side of the connecting body, a locking piece body is arranged on the outer edge face of one end of the piston, which is far away from the connecting body, a locking piece sleeve which can be connected with one side of the locking piece body in a butt mode is arranged on the inner edge face of one end of the outer pipe, which faces towards the connecting body, and one end of the outer pipe, which faces towards the connecting body, extends into the annular sealing groove.

Furthermore, the inner edge surface of the outer tube and the outer edge surface of the connector are provided with clamping grooves in annular arrays, and shear pins are arranged in the clamping grooves.

Further, but movable mounting has the inner tube in the outer tube, the one end screw thread demountable installation of inner tube towards the top connection has the backing ring, set up the recess that supplies locking piece body joint installation on the outer fringe face of backing ring.

Further, a transition joint is detachably arranged on the inner edge surface of one end, far away from the upper joint, of the outer tube, and one end, far away from the upper joint, of the transition joint extends out of the outer tube and is provided with a connector.

Further, one end of the inner tube far away from the upper joint extends to pass through the transition joint and the connector, and a variable buckle joint is arranged on the outer edge surface of one end of the inner tube extending to pass through the transition joint and the connector in a threaded fit manner.

Compared with the prior art, the utility model has the following beneficial effects: owing to the setting of top connection, connector, piston, locking piece cover, locking piece body, outer tube and annular seal groove, can drive the piston and remove when carrying out flexible regulation in-process, make the piston form sealedly in annular seal groove when the activity, thereby realize sealedly, and when pulling top connection and outer tube, realize spacing between top connection and the outer tube through the locking piece cover and the locking piece body looks butt of the last structure of outer tube, thereby still have certain leakproofness when guaranteeing flexible activity between top connection and the outer tube, the practicality is strong.

Drawings

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

FIG. 2 is a schematic view of the structure of the upper joint of the present utility model;

fig. 3 is a cross-sectional view of fig. 2 of the present utility model.

In the figure: 1. an upper joint; 2. a connecting body; 3. shearing nails; 4. a piston; 5. a lock block sleeve; 6. a lock block body; 7. a baffle ring; 8. an inner tube; 9. an outer tube; 10. a transition joint; 11. a variant buckle joint; 12. and an annular sealing groove.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-3, this telescopic joint of cooperation deblocking, upper joint 1 including having seted up annular seal groove 12 on the one end internal surface, upper joint 1 internal surface is faced to the one end construction of annular seal groove 12 and is had the screw thread tooth, and upper joint 1 has been seted up annular seal groove 12's one end screw thread detachably connected with connector 2, connector 2 is kept away from upper joint 1's one end screw thread and is detachably connected with outer tube 9, connector 2 is kept away from upper joint 1's one end inboard and can dismantle the butt and install piston 4, piston 4 is kept away from connector 2's one end external surface and is constructed with locking piece body 6, outer tube 9 extends into annular seal groove 12 towards connector 2's one end, and outer tube 9 is constructed with the locking piece cover 5 that can butt in locking piece body 6 one side towards connector 2's one end internal surface, owing to the upper joint 1, connector 2, piston 4, locking piece cover 5, locking piece body 6, outer tube 9 and annular seal groove 12's setting, can drive piston 4 when carrying out the telescopic adjustment process, make piston 4 move in the inboard butt of connector 1 and outer tube 9, thereby realize that piston 4 is in the annular seal piece 1 and outer tube 9 forms on the joint 1 and the outer tube 9 through the annular seal groove, thereby realize that seal between the joint is still can be realized to the tight seal between the practical in the joint 1 and the outer tube 9, simultaneously, seal between the realization of joint is realized to the sealing joint between the outer tube 1 and the sealing piece and the outer tube 9.

As shown in fig. 1, the inner edge surface of the outer tube 9 and the outer edge surface of the connector 2 are both provided with annular arrays, the shear pin 3 is installed in the clamping grooves, the inner tube 8 is movably installed in the outer tube 9, the baffle ring 7 is detachably installed at one end of the inner tube 8 facing the upper connector 1 in a threaded manner, and the outer edge surface of the baffle ring 7 is provided with a groove for the locking block body 6 to be clamped and installed.

As shown in fig. 1, a transition joint 10 is detachably mounted on an inner edge surface of one end of the outer tube 9 away from the upper joint 1, one end of the transition joint 10 away from the upper joint 1 extends out of the outer tube 9 and is provided with a connector, one end of the inner tube 8 away from the upper joint 1 extends through the transition joint 10 and the connector, and a buckle joint 11 is mounted on an outer edge surface of one end of the inner tube 8 extending through the transition joint 10 and the connector in a threaded fit manner.

Working principle: this telescopic joint of cooperation deblocking, when using, in carrying out the flexible adjustment process, can drive piston 4 and remove when pulling top connection 1 and outer tube 9, make piston 4 form sealedly in annular seal groove 12 in the activity, thereby realize sealedly, and when pulling top connection 1 and outer tube 9, realize spacing between top connection 1 and the outer tube 9 through the locking piece cover 5 and the locking piece body 6 looks butt of structure on the outer tube 9, thereby can still have certain leakproofness when guaranteeing flexible activity between top connection 1 and the outer tube 9, can conveniently carry out quick assembly disassembly to the variant-lock joint 11 through the screw-thread fit connection of inner tube 8 and variant-lock joint 11, the convenience is replaced the user demand of different pipeline interfaces with the variant-lock joint 11, this telescopic joint of cooperation deblocking, and is rational in infrastructure, be favorable to providing good sealed effect when flexible adjustment, the practicality is strong.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An expansion joint matched with deblocking comprises an upper joint (1) with an annular sealing groove (12) arranged on the inner edge surface of one end;

the method is characterized in that: the inner edge of the upper joint (1) faces towards one end of the annular sealing groove (12) to form a thread tooth, one end thread of the annular sealing groove (12) is formed in the upper joint (1) to be detachably connected with the connecting body (2), one end thread of the upper joint (1) away from the connecting body (2) is detachably connected with the outer tube (9), the piston (4) is detachably connected with the inner side of one end of the upper joint (1) away from the connecting body (2), the piston (4) is provided with the locking piece body (6) on the outer edge face of one end of the piston (4) away from the connecting body (2), one end of the outer tube (9) faces towards the connecting body (2) to extend into the annular sealing groove (12), and the outer tube (9) faces towards the inner edge face of one end of the connecting body (2) to form the locking piece sleeve (5) which can be connected with one side of the locking piece body (6).

2. A mating unsealed telescopic joint according to claim 1, wherein: clamping grooves are formed in the inner edge surface of the outer tube (9) and the outer edge surface of the connecting body (2) in an annular array, and shear pins (3) are arranged in the clamping grooves.

3. A mating unsealed telescopic joint according to claim 1, wherein: the inner pipe (8) is movably arranged in the outer pipe (9), the baffle ring (7) is detachably arranged at one end of the inner pipe (8) facing the upper joint (1) through threads, and a groove for clamping and installing the locking block body (6) is formed in the outer edge surface of the baffle ring (7).

4. A mating unsealed telescopic joint according to claim 3, wherein: the transition joint (10) is detachably arranged on the inner edge surface of one end, far away from the upper joint (1), of the outer tube (9), and one end, far away from the upper joint (1), of the transition joint (10) extends out of the outer tube (9) and is provided with a connector.

5. A mating unsealed telescopic joint according to claim 4, wherein: one end of the inner tube (8) far away from the upper joint (1) extends through the transition joint (10) and the connector, and the inner tube (8) extends through the transition joint (10) and the outer edge surface of one end of the connector and is provided with a buckling joint (11) in a threaded fit manner.