Anti-loosening mechanism of underwater clamp connector

Abstract

The invention belongs to the field of ocean engineering, and particularly relates to an anti-loosening mechanism of an underwater clamp connector. A wedge-shaped protrusion is designed at the bottom end of the anti-loosening connector and can be matched with a wedge-shaped groove designed in a mode that a pull bolt of the underwater clamp connector is close to the wedge-shaped protrusion, two limiting protrusions and a rubber block which are in central symmetry are designed at the top end of the anti-loosening connector, the anti-loosening connector is fixed by screwing down the bolt on the anti-loosening rod and extruding the rubber block, one end of the anti-loosening rod is connected with the supporting shaft, and the other end of the anti-loosening rod is connected with the supporting shaft. And the other end is matched with a locking mechanism composed of the support, the sliding block, the spring and the side plate, and finally the anti-loosening function is achieved.

Description

Technical Field

[0001] The invention belongs to the field of marine engineering, and in particular relates to an anti-loosening mechanism of an underwater clamp connector. Background Art

[0002] The underwater clamp connector is used to connect the underwater oil and gas pipelines. It relies on the tension bolt to lock the clamp to achieve the connection and sealing of the oil and gas pipelines. Although the tension bolt has a certain self-locking ability, in order to prevent the self-locking failure caused by the interference of other factors such as the vibration of the underwater equipment, an anti-loosening device is usually installed on the underwater clamp connector. Therefore, the present invention provides an anti-loosening device for the underwater clamp connector. Summary of the invention

[0003] The object of the present invention is to provide an anti-loosening mechanism for an underwater clamp connector.

[0004] An anti-loosening mechanism for an underwater clamp connector, comprising an anti-loosening rod, an anti-loosening joint, a locking mechanism, and a base;

[0005] The base has a hole in the middle, and the approaching bolt of the underwater clamp connector passes through the hole in the middle of the bottom. One end of the anti-loosening rod is installed on the top surface of the base through a support shaft and a support, and is located on one side of the approaching bolt. The locking mechanism is installed on the top surface of the base and is located on the other side of the approaching bolt. The anti-loosening joint is installed above the approaching bolt of the underwater clamp connector, and one end of the anti-loosening rod can rotate on the support shaft, so that after the anti-loosening rod is pressed against the approaching bolt, the other end of the anti-loosening rod is locked in the locking mechanism.

[0006] The anti-loosening joint includes two limiting protrusions and a rubber block;

[0007] The limiting protrusions are located on both sides of the top of the anti-loosening joint according to the central symmetry design. When the anti-loosening rod is tightened and pulled close to the bolt, the limiting protrusions are located on both sides of the anti-loosening rod. Two bolt holes are designed in the middle area of ​​the anti-loosening rod. The rubber block is squeezed by tightening the bolts to fix the anti-loosening joint.

[0008] The bottom end of the anti-loosening joint is designed with N wedge-shaped protrusions, which are evenly arranged in a wreath shape. The top of the underwater clamp connector's closing bolt is designed with N wedge-shaped grooves corresponding to it, ensuring that when the underwater clamp connector's closing bolt stops at any angle, the designed wedge-shaped protrusion can be adapted to the wedge-shaped groove on the top of the closing bolt.

[0009] The anti-loosening joint also includes an anti-loosening joint marking line and a base marking line; the anti-loosening joint marking line is located on the upper side of the two limiting protrusions and is parallel to the connection between the limiting protrusions and the rubber block; the base marking line is located on both sides of the pull-in bolt on the base and is parallel to the anti-loosening rod after tightening the pull-in bolt, and the angle between the anti-loosening joint marking line and the base marking line during installation does not exceed 180° / N.

[0010] The locking mechanism comprises a slider, a spring and a round rod. When the anti-loosening rod is pressed and pulled close to the bolt, the claw of the anti-loosening rod pushes the slider to move horizontally and squeezes the spring, thereby achieving locking under the elastic force of the spring.

[0011] The sliding block is designed as a wedge-shaped head, which can be matched with the claw of the anti-loosening rod.

[0012] A round rod is arranged inside the sliding block, and the round rod can be pulled horizontally to unlock the anti-loosening rod and the locking mechanism.

[0013] The beneficial effects of the present invention are:

[0014] The anti-loosening device of the present invention fixes the anti-loosening joint by an anti-loosening rod, and then fixes the anti-loosening rod by a support and a locking mechanism. The whole device has a simple structure, which greatly facilitates the installation work of the operators. At the same time, it can be intuitively observed whether it is installed in place, thereby improving the working efficiency. A wedge-shaped protrusion is designed at the bottom of the anti-loosening joint, and a matching wedge-shaped groove is designed on the top of the pull-in bolt, so that the anti-loosening joint can be conveniently and reliably connected with the pull-in bolt at any angle. The claw designed at one end of the anti-loosening rod cooperates with the wedge-shaped head designed on the slider, and the slider is also designed with a round rod, which is convenient for the operators to install and unlock the anti-loosening device. It has a purely mechanical structure and works more safely and reliably under complex conditions on the seabed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the decomposition structure of the present invention.

[0016] Figure 2 It is a front view of the final working position of the present invention.

[0017] Figure 3 It is a structural diagram of the anti-loosening joint of the present invention.

[0018] Figure 4 It is a structural diagram of the locking mechanism of the present invention.

[0019] Figure 5 It is the positive triaxial measurement of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 5As shown, the present invention provides an anti-loosening mechanism of an underwater clamp connector, including an anti-loosening rod 1, a supporting shaft 2, a support 3, a support 3', a base 4, a bolt 5, an anti-loosening joint 6, a slider 7, a spring 8, a side plate 9, a bolt 10, a support 11, a bolt 12, a pulling bolt 13, a wedge-shaped groove 14, a hole 15, a claw 16, a bolt hole 17, a wedge-shaped head 18, a round rod 19, a wedge-shaped protrusion 20, a limiting protrusion 21, a rubber block 22, a locking mechanism 23, a base marking line 24, and an anti-loosening joint marking line 25.

[0022] The main purpose of the invention is to prevent the underwater clamp connector from self-locking failure and provide an anti-loosening device for the underwater clamp connector. Through artificial saturation diving or ROV manipulator, the anti-loosening joint is connected with the pull-in bolt, the anti-loosening rod is rotated and dropped, and the other end of the anti-loosening rod is locked by the locking mechanism, and finally the bolts in the middle area of ​​the anti-loosening rod are tightened to achieve the function of preventing the underwater clamp connector from loosening.

[0023] The anti-loosening rod 1 is designed with a hole 15 at one end, which can cooperate with the support shaft 2 to realize the rotation of the anti-loosening rod 1. The other end is designed with a claw 16, which can cooperate with the locking mechanism 23 to realize the fixation of the anti-loosening rod 1. The middle area of ​​the anti-loosening rod 1 is designed with two bolt holes 17, and the anti-loosening joint 6 can be fixed by tightening the bolts 5.

[0024] The top of the anti-loosening joint 6 has two limiting protrusions 21 designed according to the central symmetry, and is installed with a rubber block 22. When the anti-loosening rod 1 falls, the two bolts 5 in the middle area of ​​the anti-loosening rod 1 are tightened, and the rubber block 22 is squeezed by the bolts 5, so that the anti-loosening joint 6 is fixed. The locking mechanism 23 is composed of a support 11, a slider 7, a spring 8 and a side plate 9. When the anti-loosening rod 1 falls, the claw 16 of the anti-loosening rod 1 pushes the slider 7 to move horizontally and squeezes the spring 8. Finally, the claw 16 of the anti-loosening rod 1 cooperates with the slider 7 to achieve locking under the action of the spring 8. The slider 7 is designed with a wedge-shaped head 18 and a round rod 19. The wedge-shaped head 18 can cooperate with the claw 16 of the anti-loosening rod 1, and the round rod 19 can be pulled horizontally to unlock the locking mechanism 23 and the anti-loosening rod 1. The anti-loosening mechanism of the underwater clamp connector can be installed by artificial saturation diving or ROV manipulator.

[0025] In this embodiment, 18 wedge-shaped protrusions 20 are designed at the bottom of the anti-loosening joint 6, which can ensure that when the pulling bolt 13 of the underwater clamp connector stops at any angle, the 18 wedge-shaped protrusions 20 designed can be adapted to the 18 wedge-shaped grooves 14 designed on the top of the pulling bolt 13. During installation, the anti-loosening joint 6 is first installed on the pulling bolt 13, and it is ensured that the angle between the anti-loosening joint marking line 25 and the base marking line 24 does not exceed 10°. The anti-loosening rod 1 is rotated so that the anti-loosening rod 1 is fixed by the locking mechanism 23. Finally, the bolt 5 is tightened to fix the anti-loosening joint 6, thereby completing the anti-loosening of the underwater clamp connector.

[0026] Working principle and advantages: first connect the anti-loosening joint 6 with the pulling bolt 13, then rotate the anti-loosening rod 1, fix the anti-loosening rod 1 through the locking mechanism 23 and the supports 3, 3', and fix the anti-loosening joint 6 on the anti-loosening rod 1 by means of the bolt 5, so as to pull the underwater clamp connector close to the bolt 13 and fix it to complete the anti-loosening.

[0027] The anti-loosening joint 6 is designed with 18 wedge-shaped protrusions 20, and 18 wedge-shaped grooves 14 are designed on the top of the pulling bolt 13. Through the cooperation of the wedge-shaped protrusions 20 and the wedge-shaped grooves 14, a reliable connection between the anti-loosening joint 6 and the pulling bolts 13 can be achieved, and full consideration is given to the fact that the pulling bolts 13 of the underwater clamp connector may stop at any angle when the work is completed. The cooperation of the wedge-shaped protrusions 20 and the wedge-shaped grooves 14 can achieve docking at any angle.

[0028] The anti-loosening rod 1 is designed with a claw 16 at one end, and the slider 7 is designed with a wedge-shaped head 18 and a round rod 19 at one end. The anti-loosening rod 1 can be fixed by the cooperation of the claw 16 of the anti-loosening rod 1 and the wedge-shaped head 18 of the slider 7. At the same time, the design of the round rod 19 makes it easy for operators to unlock the anti-loosening device.

[0029] The anti-loosening mechanism can be installed and unlocked multiple times by manual saturation diving or ROV manipulator without destroying the original structure.

[0030] Taking into account the complex working environment on the seabed, a purely mechanical structure is adopted. The whole device has a simple structure, which greatly facilitates the installation work of the operators. At the same time, it can be intuitively observed whether the installation is in place, which improves the working efficiency and makes the present invention safer and more reliable.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-loosening mechanism for an underwater clamp connector, characterized in that: It comprises an anti-loosening rod (1), an anti-loosening joint (6), a locking mechanism (23), and a base (4); The base (4) has a hole in the middle, and the closing bolt (13) of the underwater clamp connector passes through the hole in the middle of the bottom. One end of the anti-loosening rod (1) is installed on the top surface of the base through the support shaft (2) and the support (3), and is located on one side of the closing bolt (13). The locking mechanism (23) is installed on the top surface of the base (4) and is located on the other side of the closing bolt (13); the anti-loosening joint (6) is installed above the closing bolt (13) of the underwater clamp connector, and one end of the anti-loosening rod (1) can be rotated on the support shaft, so that after the anti-loosening rod (1) is pressed against the closing bolt (13), the other end of the anti-loosening rod (1) is locked in the locking mechanism.

2. The anti-loosening mechanism of the underwater clamp connector according to claim 1, characterized in that: The anti-loosening joint (6) comprises two limiting protrusions (21) and a rubber block (22); The limiting protrusions (21) are located on both sides of the top of the anti-loosening joint (6) according to a central symmetrical design. When the anti-loosening rod (1) is pressed and pulled close to the bolt (13), the limiting protrusions (21) are located on both sides of the anti-loosening rod (1). Two bolt holes (17) are designed in the middle area of ​​the anti-loosening rod (1). By tightening the bolt (5) to squeeze the rubber block (22), the anti-loosening joint (6) is fixed.

3. The anti-loosening mechanism of the underwater clamp connector according to claim 2, characterized in that: The bottom end of the anti-loosening joint (6) is designed with N wedge-shaped protrusions (20), which are evenly arranged in a wreath shape, and the top of the underwater clamp connector's closing bolt (13) is designed with N wedge-shaped grooves (14) corresponding thereto, so as to ensure that when the underwater clamp connector's closing bolt (13) stops at any angle, the designed wedge-shaped protrusion (20) can be adapted to the wedge-shaped groove (14) at the top of the closing bolt (13).

4. The anti-loosening mechanism of the underwater clamp connector according to claim 2, characterized in that: The anti-loosening joint (6) further comprises an anti-loosening joint marking line (25) and a base marking line (24); the anti-loosening joint marking line (25) is located on the upper side of the two limiting protrusions (21) and is parallel to the connection between the limiting protrusions (21) and the rubber block (22); the base marking line (24) is located on the base (4) on both sides of the approach bolt (13) and is parallel to the anti-loosening rod (1) after the approach bolt (13) is tightened, and the angle between the anti-loosening joint marking line (25) and the base marking line (24) during installation does not exceed 180° / N.

5. The anti-loosening mechanism of the underwater clamp connector according to claim 1, characterized in that: The locking mechanism (23) comprises a slider (7), a spring (8), and a round rod (19). When the anti-loosening rod (1) is pressed and pulled close to the bolt (13), the claw (16) of the anti-loosening rod pushes the slider (7) to move horizontally and squeeze the spring (8), thereby achieving locking under the elastic force of the spring (8).

6. The anti-loosening mechanism of the underwater clamp connector according to claim 5, characterized in that: The slide block (7) is designed as a wedge-shaped head (18), and the wedge-shaped head (18) can be matched with the claw (16) of the anti-loosening rod.

7. The anti-loosening mechanism of the underwater clamp connector according to claim 6, characterized in that: The slide block (7) is provided with a round rod (19), and the round rod (19) can be pulled horizontally to unlock the anti-loosening rod (1) and the locking mechanism (23).

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