CN214505919U - Hydraulic unlocking and spring resetting locking injection head and blowout prevention box connector - Google Patents

Abstract

The utility model relates to the field of coiled tubing operation, and discloses a hydraulic unlocking and spring resetting locking injection head and a blowout prevention box connector, which comprises a male head and a female head; the male head is connected with the injection head; the female head is connected with the blowout prevention box; also includes an indicator; the indicator is arranged on the female head; the female head comprises a cylinder body and a support body butted with the male head; the support body is arranged in the cylinder body; a piston and a locking claw are also arranged in the cylinder body; the piston is connected with a hydraulic pipeline; a spring is arranged below the piston; the piston drives the locking clamping jaw to tightly clamp the male head and the female head; the male head outer ring is provided with a rear bulge; the locking clamping jaw is in an inclined I shape and comprises an upper beam, a lower beam and a connecting block; the lower beam is buckled on the support body; the upper beam is buckled on the bulge on the male head; the piston is provided with an inclined table surface; the inclined table top is positioned between the upper beam and the lower beam of the locking claw.

Description

Hydraulic unlocking and spring resetting locking injection head and blowout prevention box connector

Technical Field

The utility model relates to a coiled tubing operation field, in particular to hydraulic pressure unblock and spring return locking's injection head and prevent spouting box connector.

Background

Coiled tubing was initially used as an economical and effective wellbore cleanup tool, and later in-home applications were continuously broadened for sand wash well cleanout, gas lift, fracturing, workover, drilling, paraffin removal, fluid drainage, coordination tests, and the like. The coiled tubing equipment comprises a blowout preventer, a blowout prevention box, a lifting and unfreezing device, an operation window and the like, the market demand is wider, and the requirement on the professional degree is higher and more comprehensive.

The connector is applied more abroad, is used for connecting a coiled tubing injection head and a blowout prevention box, and is mainly used for quickly, efficiently and safely connecting or separating coiled tubing equipment. Traditionally, all adopt bolt spare fastening, to the operating mode that often needs separation injection head and prevent spouting the box, it wastes time and energy to disassemble. Therefore, there is a need for a connector that is stable in performance, and that can be unlocked/locked quickly and efficiently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a hydraulic pressure unblock and spring reset locking's injection head and prevent spouting box connector for realize the safety high-speed joint between continuous oil pipe injection head and the prevent spouting box, replace traditional bolted connection.

The utility model provides a technical scheme that its technical problem adopted is: a hydraulic unlocking and spring resetting locking injection head and blowout prevention box connector comprises a male head and a female head; the male head is connected with the injection head; the female head is connected with the blowout prevention box; also includes an indicator; the indicator is arranged on the female head; the female head comprises a cylinder body and a support body butted with the male head; the support body is arranged in the cylinder body; a piston and a locking claw are also arranged in the cylinder body; the piston is connected with a hydraulic pipeline; a spring is arranged below the piston; the piston drives the locking clamping jaw to tightly clamp the male head and the female head.

Further, the method comprises the following steps: the male head is provided with a guide sleeve; and an interval copper sleeve is arranged in the lead-in sleeve.

Further, the method comprises the following steps: the male head outer ring is provided with a rear bulge; the locking clamping jaw is in an inclined I shape and comprises an upper beam, a lower beam and a connecting block; the lower beam is buckled on the support body; the upper beam is buckled on the bulge on the male head; the piston is provided with an inclined table surface; the inclined table top is positioned between the upper beam and the lower beam of the locking claw.

Further, the method comprises the following steps: the upper part of the cylinder body is provided with an upper cylinder cover; and the upper cylinder cover is provided with a guide tapered hole.

Further, the method comprises the following steps: the indicator comprises an indicating rod, a display board and a mounting board; one end of the indicating rod is connected with the piston, and the other end of the indicating rod extends out of the cylinder body; the display panel is fixed on the mounting plate; the display panel is perpendicular to the mounting plate; one end of the mounting plate is hinged with the cylinder body through a bolt pin, and the other end of the mounting plate is pressed on a part of the indicating rod extending out of the cylinder body.

The utility model has the advantages that: the piston is driven to lift through hydraulic pressure and a spring, so that the locking clamping jaw on the female head of the connector can be remotely controlled by using one hydraulic pipeline, the male head and the female head are locked and separated, the traditional bolt fastening mode is replaced, and the advantages of high efficiency and high speed are achieved; the indicator is used for indicating the connection state of the current male head and the current female head, and is convenient for an operator to observe.

Drawings

FIG. 1 is a schematic diagram of a half-section structure of a locked state of a connector;

FIG. 2 is a schematic cross-sectional view of the connector in a separated state;

FIG. 3 is a schematic view of the indicator in the locked state of the connector;

fig. 4 is a schematic structural diagram of the indicator in the connector disconnection state.

Labeled as: 1. a male head; 11. a protrusion; 12. a lead-in sleeve; 13. spacing copper sleeves; 2. a female head; 20. a cylinder body; 21. a support body; 22. a spring; 23. a piston; 24. locking the clamping jaw; 3. an indicator; 31. an indication lever; 32. a display panel; 33. mounting a plate; 34. and (4) a bolt pin.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.

Examples

As shown in fig. 1 to 4, a hydraulic unlocking and spring return locking injector and blowout preventer connector comprises a male head 1 and a female head 2; the male head 1 is connected with the injection head; the female head 2 is connected with a blowout prevention box; also included is an indicator 3; the indicator 3 is arranged on the female head 2; the female head 2 comprises a cylinder body 20 and a support body 21 butted with the male head 1; the support body 21 is arranged in the cylinder body 20; a piston 23 and a locking claw 24 are also arranged in the cylinder body 20; a hydraulic pipeline is connected to the piston 23; a spring 22 is arranged below the piston 23; the piston 23 drives the locking claw 24 to clamp the male head 1 and the female head 2.

On the basis, the male head 1 is provided with a guide-in sleeve 12; a spacing copper sleeve 13 is mounted in the lead-in sleeve 12. In order to ensure smooth insertion of the continuous pipe, a step surface with the inner diameter from large to small can be arranged at the continuous pipe passing section between the connecting machine and the blowout prevention box to play a role in guiding.

On the basis, a rear bulge 11 is arranged on the outer ring of the male head 1; the locking claw 24 is in an inclined I shape and comprises an upper beam, a lower beam and a connecting block; the lower beam is buckled on the support body 21; the upper beam is buckled on the bulge 11 on the male head 1; the piston 23 is provided with an inclined table surface 231; the inclined table 231 is located between the upper and lower beams of the locking jaw 24.

In practical use, the piston 23 is driven by a hydraulic pipeline to descend to press the spring 22, the inclined table 231 on the piston 23 presses the locking claw 24, so that the locking claw 24 inclines, the male head 1 is inserted into the female head 2, the hydraulic pressure is removed, the piston 23 rises under the action of the elastic force of the spring 22, the inclined table 231 pushes the locking claw 24, the locking claw 24 stands, the upper beam of the locking claw 24 is buckled on the bulge 11 of the male head 1, and the male head 1 and the female head 2 are locked. The locking claw 24 is a key part of the connector, adopts an inclined I-shaped structure, and has smooth and excessive round corners at stress concentration positions and strong bearing capacity. The inclined I-shaped structure ensures that the locking claw 24 is inclined stably without blocking when the piston 23 moves downwards; when the spring 22 rebounds, it can rise along the way.

The spring 22 in this embodiment is made of high-strength spring steel, and the surface of the spring 22 is subjected to blue plastic spraying or xylitol spraying, so that the spring is suitable for high-strength operation.

On the basis, an upper cylinder cover is arranged at the upper part of the cylinder body 20; the upper cylinder cover is provided with a guiding taper hole, the connector is usually inserted and connected in a hoisting mode at the high altitude of 15-20 meters away from the ground, and the upper cylinder cover of the cylinder body 20 is provided with the taper hole which can play a guiding role and facilitate the insertion of the male head 1.

On the basis of the above, the indicator 3 includes an indicating rod 31, a display panel 32 and a mounting plate 33; one end of the indicating rod 31 is connected with the piston 23, and the other end extends out of the cylinder 20; the display panel 32 is fixed on the mounting plate 33; the display panel 32 is perpendicular to the mounting plate 33; the mounting plate 33 is hinged to the cylinder 20 at one end by a screw pin 34 and at the other end bears on the portion of the indicator rod 31 extending out of the cylinder 20.

In practical use, the indicating rod 31 will rise and fall along with the piston 23, when the male head 1 and the female head 2 are locked, the piston 23 is located at a high position, and at the same time, the indicating rod 31 is also located at the high position, as shown in fig. 3, one end of the mounting plate 33 falls on the indicating rod 31 at the high position and is kept horizontal as a whole, so that the display plate 32 is vertical, and the display plate 32 cannot be seen by ground workers; when the male head 1 and the female head 3 are separated, the piston 23 descends to be at the low position, the indicating rod 31 is also at the low position, as shown in fig. 4, one end of the mounting plate 33 falls on the indicating rod 31 at the low position to incline, so that the display plate 32 is also inclined, and the display plate 32 can be observed by a ground worker. In-service use can select suitable mounting panel 33 hinge position, and the cooperation indicates the lift height of pole 31, adjusts the inclination of display panel 32, and display panel 32 inclination is 50 degrees in this embodiment, can make things convenient for ground radius 30 meters within range all can clearly observe display panel 32, makes things convenient for ground personnel to know the hydraulic pressure state of opening.

The above-mentioned embodiments should not limit the present invention in any way, and all the technical solutions obtained by adopting equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims (5)

1. A hydraulic unlocking and spring resetting locking injection head and blowout prevention box connector comprises a male head (1) and a female head (2); the male head (1) is connected with the injection head; the female head (2) is connected with the blowout prevention box; the method is characterized in that: further comprising an indicator (3); the indicator (3) is arranged on the female head (2); the female head (2) comprises a cylinder body (20) and a support body (21) butted with the male head (1); the support body (21) is arranged in the cylinder body (20); a piston (23) and a locking claw (24) are also arranged in the cylinder body (20); a hydraulic pipeline is connected to the piston (23); a spring (22) is arranged below the piston (23); the piston (23) drives the locking claw (24) to tightly clamp the male head (1) and the female head (2).

2. The hydraulically unlocked and spring-return locked injector head and blowout preventer connector of claim 1, wherein: the male head (1) is provided with a guide sleeve (12); an interval copper sleeve (13) is arranged in the leading-in sleeve (12).

3. The hydraulically unlocked and spring-return locked injector head and blowout preventer connector of claim 1, wherein: the locking claw (24) is in an inclined I shape and comprises an upper beam, a lower beam and a connecting block; the lower beam is buckled on the support body (21); a rear bulge (11) is arranged on the outer ring of the male head (1); the upper beam is buckled on a bulge (11) on the male head (1); an inclined table top (231) is arranged on the piston (23); the inclined table surface (231) is positioned between the upper beam and the lower beam of the locking claw (24).

4. The hydraulically unlocked and spring-return locked injector head and blowout preventer connector of claim 1, wherein: the upper part of the cylinder body (20) is provided with an upper cylinder cover; and the upper cylinder cover is provided with a guide tapered hole.

5. The hydraulically unlocked and spring-return locked injector head and blowout preventer connector of claim 1, wherein: the indicator (3) comprises an indicating rod (31), a display plate (32) and a mounting plate (33); one end of the indicating rod (31) is connected with the piston (23), and the other end of the indicating rod extends out of the cylinder body (20); the display panel (32) is fixed on the mounting plate (33); the display panel (32) is perpendicular to the mounting plate (33); one end of the mounting plate (33) is hinged with the cylinder body (20) through a screw pin (34), and the other end of the mounting plate is pressed on the part of the indicating rod (31) extending out of the cylinder body (20).

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