A quick connection device with a labor-saving mechanism

Abstract

The present invention relates to the technical field of oil extraction equipment, and discloses a quick connection device with a labor-saving mechanism, including the upper part of the connection body. Below the upper part of the connection body, there is a lower part of the connection body. On the side edges close to each other between the upper part of the connection body and the lower part of the connection body, two groups of internal pin slots are symmetrically opened. At the connection between the upper part of the connection body and the lower part of the connection body, there is a connection sealing ring. In the present invention, by arranging an outer fixed hoop on the outer sides of the upper part and the lower part of the connection body, and the outer fixed hoop and the upper part and the lower part of the connection body are plugged and limited through the arranged rolling limit pin assembly, thus while retaining the reliability of the traditional API standard flange, the quick installation of the hoop connection is also retained. By adding a pin body containing a ball, the purpose of a single person being able to open a hoop of about 200 KG can be achieved, greatly reducing the risk of installation.

Description

Technical Field

[0001] The present invention relates to the technical field of oil extraction equipment, and particularly to a quick connection device with a labor-saving mechanism. Background Technique

[0002] In recent years, due to the gradual increase in the geological years of onshore oil and gas exploration and development and the increasing difficulty of formation extraction, the output of onshore oil and gas resources has continued to decline. However, the total amount of offshore resource exploration and development accounts for approximately 1 / 3 of the total global energy development, which is a very large figure. Therefore, under the background of the development of new-era technologies, the exploitation of marine resources has gradually attracted more attention.

[0003] Since the connection design of the traditional API 6A standard is flange connection, a set of bolts distributed on the flange causes plastic deformation of the sealing surface of the sealing steel ring between the flanges under a specified torque to achieve a sealing effect. Although such a connection method has high reliability, it has a long operation cycle. A single set of connections requires 2 hours and is not particularly suitable for offshore platforms with high development operation costs. This connection method takes a long time, consumes a large amount of physical strength, requires multiple workers to operate together at the same time, and is inconvenient to use. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a quick connection device with a labor-saving mechanism, which solves the problem that the connection design of the traditional API 6A standard is flange connection. A set of bolts distributed on the flange causes plastic deformation of the sealing surface of the sealing steel ring between the flanges under a specified torque to achieve a sealing effect. Although such a connection method has high reliability, it has a long operation cycle. A single set of connections requires 2 hours and is not particularly suitable for offshore platforms with high development operation costs. This connection method takes a long time, consumes a large amount of physical strength, requires multiple workers to operate together at the same time, and is inconvenient to use.

[0005] The present invention provides the following technical solution: A quick connection device with a labor-saving mechanism, including the upper part of the connection body. Below the upper part of the connection body is provided with the lower part of the connection body. On the sides of the upper part of the connection body and the lower part of the connection body that are close to each other, two groups of internal pin slots are symmetrically opened. At the connection of the upper part of the connection body and the lower part of the connection body, a connection sealing ring is provided. On both sides of the connection of the upper part of the connection body and the lower part of the connection body, outer fixed clamps are symmetrically arranged. On the outer sides of the outer fixed clamps, two outer pin insertion holes are symmetrically opened. The upper part of the connection body, the lower part of the connection body, and the outer fixed clamps are connected by a plurality of rolling limit pin assemblies arranged. On both sides of the outer fixed clamps, a number of connection screw holes are symmetrically opened. Between the number of connection screw holes, a connection screw is inserted. At the end of the connection screw, a fixed nut is provided;

[0006] The rolling limit pin assembly includes a pin body arranged on the side of the outer fixed clamp. One end of the pin body is inserted into the internal pin slot, and the other end of the pin body penetrates through the outer pin insertion hole. On the side of the pin body, a rolling groove is opened. On the side of the rolling groove, a first insertion hole is opened. A number of balls are evenly arranged and rolled in the rolling groove. The top of the ball is abutted by an upper fixing plate provided. On the upper fixing plate, a number of limit holes are evenly opened. At the end of the upper fixing plate, a second insertion hole is opened.

[0007] Preferred technical solution one: The limit holes on the upper fixing plate abut against the balls, and a connection baffle is arranged on the side of the upper fixing plate.

[0008] Preferred technical solution two: At the bottom end of the connection baffle, a rolling chute is opened, and at the end of the connection baffle, a third insertion hole is opened.

[0009] Preferred technical solution three: The middle part of the outer fixed clamp is in a curved arc shape that matches the upper part of the connection body and the lower part of the connection body.

[0010] Preferred technical solution four: An annular groove is arranged in the middle of the upper part of the connection body and the lower part of the connection body.

[0011] Preferred technical solution five: One end of the pin body is cylindrical, one side of the pin body is horizontal, and the other side is arc-shaped.

[0012] This solution can make the end of the pin body more convenient to insert into the internal pin slot, and the horizontal side of the pin body is more convenient for opening the rolling groove.

[0013] Preferred Technical Solution Six: The rolling chute is semi-circular and matches the ball, and the top end of the ball passes through the limiting hole and is limited by the rolling chute.

[0014] This solution can make the ball roll and be limited in the rolling groove under the contact of the upper fixing plate.

[0015] Preferred Technical Solution Seven: The third jack, the second jack and the first jack are on the same straight line and have the same aperture size.

[0016] This solution can enable the user to insert a plug into the third jack, the second jack and the first jack, and firmly fix the connecting baffle, the upper fixing plate and the pin body.

[0017] Compared with the prior art, the present invention provides a quick connection device with a labor-saving mechanism, and has the following beneficial effects:

[0018] (1) In the present invention, outer fixed clamps are arranged on the outer sides of the upper part and the lower part of the connection body, and the outer fixed clamps and the upper part and the lower part of the connection body are plugged and limited through the arranged rolling limit pin assembly. Thus, while retaining the reliability of the traditional API standard flange and the quick installation of the clamp connection, the hoisting operation required in the clamp installation is improved. By adding a pin body containing a ball, the purpose that a single person can open a clamp of about 200KG can be achieved, and the installation risk is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0020] Figure 2 is a structural exploded schematic diagram of the present invention;

[0021] Figure 3 is of the present invention Figure 2 structural enlarged view of the rolling limit pin assembly therein;

[0022] Figure 4 is of the present invention Figure 2 structural enlarged view of the upper part of the connection body therein.

[0023] Figure 5 is of the present invention Figure 2 structural enlarged view of the outer fixed clamp therein.

[0024] In the figure:

[0025] 1. Upper part of the connection body; 2. Lower part of the connection body; 3. Inner pin slot; 4. Connection sealing ring; 5. Outer fixed clamp; 6. Outer pin socket; 7. Rolling limit pin assembly; 8. Connection screw hole; 9. Connection screw; 10. Fixed nut;

[0026] 701. Pin body; 702. Rolling groove; 703. First socket; 704. Ball; 705. Upper fixing plate; 706. Limit hole; 707. Second socket; 708. Connection baffle; 709. Rolling chute; 710. Third socket. Detailed implementation mode

[0027] Please refer to Figures 1-5 , a quick connection device with a labor-saving mechanism, including the upper part 1 of the connection body. Below the upper part 1 of the connection body, there is a lower part 2 of the connection body. On the symmetrically adjacent sides of the upper part 1 and the lower part 2 of the connection body, two groups of inner pin slots 3 are symmetrically opened. At the connection of the upper part 1 and the lower part 2 of the connection body, there is a connection sealing ring 4. On the two symmetrically adjacent sides at the connection of the upper part 1 and the lower part 2 of the connection body, there are outer fixed clamps 5 symmetrically arranged.

[0028] On the outer side of the outer fixed clamp 5, two outer pin sockets 6 are symmetrically opened. The upper part 1, the lower part 2 of the connection body and the outer fixed clamp 5 are connected by a plurality of rolling limit pin assemblies 7 arranged. On the two symmetrically adjacent sides of the outer fixed clamp 5, a number of connection screw holes 8 are symmetrically opened. Between a number of connection screw holes 8, they are connected by an inserted connection screw 9. At the end of the connection screw 9, there is a fixed nut 10.

[0029] The rolling limit pin assembly 7 includes a pin body 701 arranged on the side of the outer fixed clamp 5. One end of the pin body 701 is inserted into the inner pin slot 3, and the other end of the pin body 701 penetrates through the outer pin socket 6. On the side of the pin body 701, there is a rolling groove 702. On the side of the rolling groove 702, there is a first socket 703. A number of balls 704 are evenly arranged and roll in the rolling groove 702.

[0030] The top of the ball 704 is resisted by an upper fixing plate 705 arranged. On the upper fixing plate 705, a number of limit holes 706 are evenly opened. At the end of the upper fixing plate 705, there is a second socket 707. The limit holes 706 on the upper fixing plate 705 resist the ball 704. On the side of the upper fixing plate 705, there is a connection baffle 708. At the bottom end of the connection baffle 708, there is a rolling chute 709. At the end of the connection baffle 708, there is a third socket 710.

[0031] The middle part of the outer fixed clamp 5 is in a curved arc shape that matches the upper part 1 and the lower part 2 of the connection body.

[0032] An annular groove is provided in the middle of the upper part 1 of the connecting body and the lower part 2 of the connecting body.

[0033] Embodiment 2: The difference between this embodiment and Embodiment 1 is that one end of the pin body 701 is cylindrical, one side surface of the pin body 701 is horizontal, and the other side surface is arc-shaped.

[0034] This makes it more convenient for the end of the pin body 701 to be inserted into the inner pin slot 3, and the horizontal side surface of the pin body 701 is more convenient for the opening of the rolling groove 702.

[0035] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the rolling chute 709 is semi-circular and matches the ball 704, and the top end of the ball 704 passes through the limiting hole 706 and is limited by the rolling chute 709.

[0036] This enables the ball 704 to roll and be limited in the rolling groove 702 under the resistance of the upper fixing plate 705.

[0037] Embodiment 4: The difference between this embodiment and Embodiment 1 is that the third jack 710, the second jack 707, and the first jack 703 are located on the same straight line and have the same aperture size.

[0038] This enables the user to insert a bolt into the third jack 710, the second jack 707, and the first jack 703 to firmly fix the connecting baffle 708, the upper fixing plate 705, and the pin body 701.

[0039] In this embodiment, since the connection design of the traditional API 6A standard is a flange connection, a set of bolts distributed on the flange causes plastic deformation of the sealing surface of the sealing steel ring between the flanges under a specified torque to achieve a sealing effect. Although such a connection method has high reliability, it has a long operation cycle. A single set of connections takes 2 hours, and it is not particularly suitable for offshore platforms with high development operation costs. This connection method takes a long time, consumes a lot of physical strength, requires multiple workers to operate together at the same time, and is not very convenient to use.

[0040] In summary, during specific implementation, when the user needs to quickly connect the upper part 1 of the connection body and the lower part 2 of the connection body, the user first brings the upper part 1 of the connection body and the lower part 2 of the connection body closer. A connection sealing ring 4 is provided between the contact surfaces of the upper part 1 of the connection body and the lower part 2 of the connection body. The connection between the upper part 1 of the connection body and the lower part 2 of the connection body is sealed again through the connection sealing ring 4. The outer sides of the upper part 1 of the connection body and the lower part 2 of the connection body are clamped again through the externally sleeved outer fixing hoop 5. At the same time, the rolling limit pin assembly 7 inserted between the internal pin slot 3 and the external pin hole 6 can further strengthen the connection firmness between the outer fixing hoop 5 and the sides of the upper part 1 of the connection body and the lower part 2 of the connection body.

[0041] A ball 704 is provided on the pin body 701, so that the sliding friction force generated by a single outer fixing hoop 5 on the rolling limit pin assembly 7 is changed to rolling friction force, greatly reducing the resistance. Thus, a single person can operate without the need for hoisting operations, further improving the installation speed and safety, and greatly enhancing the efficiency of offshore drilling. The two outer fixing hoops 5 are connected by inserting and connecting through the provided connection screw 9, and a fixed nut 10 is sleeved on the end of the connection screw 9, so as to firmly sleeve the two outer fixing hoops 5 on the outer sides of the upper part 1 of the connection body and the lower part 2 of the connection body, strengthening the connection firmness between the upper part 1 of the connection body and the lower part 2 of the connection body.

Claims

1. A quick connection device with a labor-saving mechanism, comprising an upper part (1) of a connection body, characterized in that: Below the upper part (1) of the connection body, a lower part (2) of the connection body is provided. On the symmetrically arranged sides close to each other of the upper part (1) and the lower part (2) of the connection body, two groups of internal pin slots (3) are opened. At the connection of the upper part (1) and the lower part (2) of the connection body, a connection sealing ring (4) is provided. On the two symmetrically arranged sides at the connection of the upper part (1) and the lower part (2) of the connection body, outer fixed retaining hoops (5) are provided. On the outer sides of the outer fixed retaining hoops (5), two outer pin insertion holes (6) are symmetrically opened. The upper part (1) of the connection body, the lower part (2) of the connection body and the outer fixed retaining hoops (5) are connected by a plurality of rolling limit pin assemblies (7) provided. On the two symmetrically arranged sides of the outer fixed retaining hoops (5), a plurality of connection screw holes (8) are symmetrically opened. The plurality of connection screw holes (8) are connected by a connection screw rod (9) inserted therein. At the end of the connection screw rod (9), a fixed nut (10) is provided; The rolling limit pin assembly (7) includes a pin body (701) provided on the side of the outer fixed retaining hoop (5). One end of the pin body (701) is inserted into the internal pin slot (3), and the other end of the pin body (701) penetrates through the outer pin insertion hole (6). On the side of the pin body (701), a rolling groove (702) is opened. On the side of the rolling groove (702), a first insertion hole (703) is opened. A plurality of balls (704) are evenly arranged and roll in the rolling groove (702). The top of the balls (704) is abutted by an upper fixing plate (705) provided. On the upper fixing plate (705), a plurality of limit holes (706) are evenly opened. At the end of the upper fixing plate (705), a second insertion hole (707) is opened.

2. The quick connection device with a labor-saving mechanism according to claim 1, wherein: The limit holes (706) on the upper fixing plate (705) abut against the balls (704), and a connection baffle (708) is provided on the side of the upper fixing plate (705).

3. The quick connection device with a labor-saving mechanism according to claim 2, characterized in that: At the bottom end of the connection baffle (708), a rolling chute (709) is opened. At the end of the connection baffle (708), a third insertion hole (710) is opened.

4. The quick connection device with a labor-saving mechanism according to claim 3, characterized in that: The middle part of the outer fixed retaining hoop (5) is in a curved arc shape that matches the upper part (1) and the lower part (2) of the connection body.

5. The quick connection device with a labor-saving mechanism according to claim 4, characterized in that: In the middle parts of the upper part (1) and the lower part (2) of the connection body, an annular groove is provided.

6. The quick connection device with a labor-saving mechanism according to claim 5, characterized in that: One end of the pin body (701) is cylindrical, one side surface of the pin body (701) is horizontal, and the other side surface is arc-shaped.

7. The quick connection device with a labor-saving mechanism according to claim 6, wherein: The rolling chute (709) is in a semi-circular shape that matches the balls (704), and the top of the balls (704) penetrates through the limit holes (706) and is limited by the rolling chute (709).

8. A quick connection device with a labor-saving mechanism according to claim 7, characterized in that: The third insertion hole (710), the second insertion hole (707) and the first insertion hole (703) are on the same straight line and have the same aperture size.

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