Connector butting equipment and mounting rack

Abstract

The utility model discloses a connector butting device and a mounting rack, and the mounting rack comprises a main rack body which is provided with a longitudinal beam; the height indication assembly comprises a first mounting rod, a second mounting rod and a height indication assembly, and the first mounting rod is mounted on the first side of the flange butt joint mechanism; the second mounting rod is mounted on the second side of the flange butt joint mechanism; the first side and the second side are located on the two radial sides of the flange butt joint mechanism correspondingly. And scale values are arranged on the first mounting rod and the second mounting rod. According to the mounting rack, the two mounting rods with the scale values are arranged, so that the height position of the flange butt joint system relative to the mounting rack can be visually obtained, and the height positioning difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater construction equipment, in particular to a connector docking device and a mounting bracket. Background Technique

[0002] With the development of ocean technology, deep-sea pipelines play an increasingly important role in ocean engineering. Deep-sea pipelines are widely used in fields such as oil transportation and fluid transportation. During use, there are various reasons that can cause pipeline damage. For example, due to the long-term exposure of deep-sea pipelines to seawater and other corrosive environments, the pipelines may experience corrosion and wear, affecting their structural integrity and function. At the same time, submarine earthquakes, landslides, mooring accidents or other underwater activities may cause the pipelines to be subjected to external impacts, resulting in damage or rupture. In addition, long-term exposure to pressure and temperature changes, as well as dynamic loads such as ocean currents, may cause fatigue of the pipeline material, leading to cracks or fractures.

[0003] In order to replace damaged subsea pipelines, existing technologies mostly use connectors to replace the damaged sections of the subsea pipelines. However, during the installation process of the connectors, it is impossible to directly obtain the height position of the flange docking system relative to the mounting bracket, resulting in greater difficulty in height positioning. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connector docking device and a mounting bracket, in order to be able to directly obtain the height position of the flange docking system relative to the mounting bracket and reduce the difficulty of height positioning. This purpose is achieved through the following technical solutions:

[0005] The utility model provides a mounting bracket for a connector docking device, and the mounting bracket includes:

[0006] A main frame body, on which a longitudinal beam is installed;

[0007] A height indicating component, which is installed on the main frame body, and the subsea pipeline to be repaired passes through the height indicating component for fixation; the height indicating component includes:

[0008] A first mounting rod, which is installed on the first side of the flange docking mechanism;

[0009] A second mounting rod, which is installed on the second side of the flange docking mechanism;

[0010] Scale values are provided on both the first mounting rod and the second mounting rod;

[0011] The first side and the second side are respectively located on the radial two sides of the flange docking mechanism.

[0012] In this way, by setting two mounting rods with scale values, the height position of the flange docking system relative to the mounting frame can be visually obtained, reducing the difficulty of height positioning.

[0013] In some embodiments, the mounting frame further includes:

[0014] A positioning assembly, the positioning assembly is mounted on the main frame body, and the main frame body is positioned and connected to the jacket through the positioning assembly.

[0015] In some embodiments, the positioning assembly includes:

[0016] A rough positioning structure, the rough positioning structure includes a positioning hole opened on an ear plate on the side of the main frame body and a guide post provided on the jacket. When in the positioning state, the positioning hole is sleeved on the guide post;

[0017] In some embodiments, the positioning assembly includes:

[0018] A fine positioning structure, the fine positioning structure includes a guide post provided on the jacket and a guide sleeve provided on the main frame body. When in the positioning state, the guide post is inserted into the guide sleeve.

[0019] In some embodiments, the mounting frame further includes:

[0020] A lifting mechanism, the lifting mechanism is movably and fixedly connected to the main frame body in the transverse and / or longitudinal directions.

[0021] In some embodiments, the lifting mechanism includes:

[0022] A lifting beam, a plurality of mounting holes are opened on the longitudinal beam, and the lifting beam can be selectively mounted in the mounting holes on the longitudinal beam;

[0023] An adjusting plate, the adjusting plate is mounted on the lifting beam, and a plurality of lifting holes are opened along the transverse direction on the adjusting plate so that the lifting hook can be selectively hooked on the lifting holes.

[0024] In some embodiments, the mounting frame further includes:

[0025] An ROV handle, the ROV handle is mounted on the side of the main frame body.

[0026] In some embodiments, the mounting frame further includes:

[0027] An anti-corrosion metal block, the anti-corrosion metal block is detachably mounted on the main frame body.

[0028] In some embodiments, the anti-corrosion metal block is bolted to the main frame body, and a wire is provided between the anti-corrosion metal block and the main frame body.

[0029] The present utility model further provides a connector docking device, including:

[0030] The mounting bracket as described above;

[0031] A flange docking mechanism, which is mounted on the mounting bracket and centers and fastens the flange of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0033] Figure 1 Schematically shows one of the structural diagrams of the mounting bracket according to an embodiment of the present utility model;

[0034] Figure 2 Schematically shows another structural diagram of the mounting bracket according to an embodiment of the present utility model;

[0035] Figure 3 Schematically shows a third structural diagram of the mounting bracket according to an embodiment of the present utility model;

[0036] Figure 4 Schematically shows a fourth structural diagram of the mounting bracket according to an embodiment of the present utility model;

[0037] Figure 5 Schematically shows a fifth structural diagram of the mounting bracket according to an embodiment of the present utility model;

[0038] Figure 6 Is a flowchart of the control method provided by the present utility model.

[0039] The reference numerals are as follows:

[0040] 1 - Mounting bracket;

[0041] 11 - Main frame body, 12 - ROV handle, 13 - Metal block, 14 - First telescopic mechanism, 15 - Second telescopic mechanism;

[0042] 16 - First mounting cross beam, 17 - Second mounting cross beam, 18 - Longitudinal beam, 19 - First mounting rod, 110 - Second mounting rod; 111 - Transverse mounting plate, 112 - Ear plate, 113 - Positioning hole, 114 - Guide post, 115 - Lifting beam, 116 - Adjusting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0044] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0045] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first" and "second" and other numerical terms when used herein do not imply an order or sequence. Thus, a first element, component, region, layer, or section discussed below may be referred to as a second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0046] For ease of description, spatial relative relationship terms may be used herein to describe the relationship of one element or feature shown in the figures to another element or feature, such as "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" another element or feature will then be oriented "above" or "over" the other element or feature. Thus, the example term "below" can include both an orientation above and below.

[0047] Please refer to Figures 1 - 5, the mounting bracket 1 provided by the present invention is used for a connector docking device. The mounting bracket 1 includes a main frame body 11, a height indicating component, a position adjusting component, and a control unit. Among them, the main frame body 11 serves as the basic structure of the mounting bracket 1, providing support and stability. The main frame body 11 is composed of multiple profiles that are detachably connected, facilitating disassembly and assembly, and the components can be reused. The main frame body 11 is composed of multiple profiles, and these profiles are connected in a detachable manner. There may be various connection methods between the profiles, such as bolt connection, snap connection, or using special quick connectors. These connection methods ensure the stability and durability of the structure of the main frame body 11, and at the same time facilitate quick disassembly and assembly. Since the profiles can be disassembled, the main frame body 11 can be adjusted and reorganized according to different maintenance requirements, improving its adaptability in different environments and working conditions. At the same time, the detachable design also makes the main frame body 11 easier to transport and store, especially suitable for large-sized underwater maintenance operation equipment.

[0048] An ROV handle 12 for cooperating with an underwater robot is also provided on the main frame body 11. After the main frame body 11 enters the underwater area, the underwater robot grabs the ROV handle 12 through its manipulator or gripper, and pulls or pushes the main frame body 11 to adjust the pose of the main frame body 11. The ROV handle 12 can be installed on the side or other positions of the main frame body 11 to ensure that its position is convenient for the underwater robot to operate, and at the same time does not affect the functions of other components.

[0049] An anti-corrosion metal block 13 can also be installed on the main frame body 11. Due to the relatively large corrosiveness of the underwater environment, in order to extend the service life of the main frame body 11, a metal block 13 with higher activity than the material activity of the main frame body 11 can be installed on the main frame body 11. The active substances in seawater will react with the metal block 13 preferentially, avoiding the reaction of the active substances with the main frame body 11 and corroding the main frame body 11. Specifically, the connection form can usually be welding or bolt connection. Generally, a wire is connected between the metal block 13 and the device to ensure reliable electrical connection between the two. When the metal block 13 is corroded, the metal block 13 can be replaced in time to avoid causing corrosion of the main frame body 11.

[0050] The above-mentioned height indicating component is installed on the main frame body 11, and the sea pipe to be repaired is fixed through the height indicating component. That is to say, the height indicating component is installed on the main frame body 11 to fix the sea pipe to be repaired and ensure the stability of the sea pipe during the repair process. The height indicating component can be a fixture, a clamping jaw, a bracket, or other mechanical structures. These structures need to be able to firmly fix the sea pipe and at the same time allow a certain degree of adjustment to adapt to sea pipes of different sizes.

[0051] The position adjustment component is installed between the main frame 11 and the flange docking mechanism of the connector docking device, and adjusts the position and angle of the flange docking mechanism for precise docking with the subsea pipeline. The main function of the position adjustment component is to adjust the position and angle of the connector docking device. For example, linear movement can be achieved by driving a lead screw or a slide rail with a motor, and rotational adjustment can be achieved using a rotary joint to meet different docking requirements. Specifically, when the lead screw or slide rail is driven by a motor, the lead screw or slide rail can be installed on the main frame 11 and connected to the flange docking mechanism of the connector docking device. The motor rotates the lead screw or drives the slide rail, causing the connector docking device to move along a preset path. The movement of the lead screw is linear, while the slide rail can achieve linear or curvilinear movement to adjust the position and angle.

[0052] The control unit is used to generate control instructions based on the current pose of the flange docking mechanism, and the control instructions are used to control the position adjustment component to move according to a preset strategy. During operation, the control unit first monitors the current pose of the flange docking mechanism through sensors, which can be position sensors, angle sensors, pose sensors, etc., to obtain accurate position and angle information of the docking mechanism in real time. After receiving the sensor data, the control unit calculates the pose deviation based on the required target pose and the current pose, and calculates the amount that the position adjustment component needs to be adjusted. Based on the calculated adjustment amount, the control unit generates corresponding control instructions, which will indicate how the position adjustment component should move to achieve the position and angle adjustment of the docking mechanism. The control instructions are output through control signals and transmitted to the position adjustment component, and the position adjustment component responds to these instructions and moves according to a preset strategy to adjust the position and angle of the flange docking mechanism.

[0053] During operation, the connector enters the water under the drive of the mounting frame 1. When approaching the subsea jacket, the image acquisition device carried by the underwater robot obtains the current pose of the flange docking mechanism on the mounting frame 1 and transmits the image to the control unit. The control unit generates control instructions based on the current pose of the flange docking mechanism, and the control instructions are used to control the position adjustment component to move according to a preset strategy to adjust the docking position and angle for precise docking with the subsea pipeline and the jacket. After the angle and position are adjusted, the mounting frame 1 continues to descend and is fixedly connected to the jacket, and the height indicating component installed on the main frame 11 is used to fix the subsea pipeline to be repaired to ensure the stability of the subsea pipeline during the repair process. In this way, by setting the position adjustment component and the control unit for controlling its movement, the connector can be adjusted to enter the water at an appropriate angle and direction, ensuring the compatibility of the position of the connector with the jacket, reducing the positioning difficulty between the connector and the jacket, and improving the installation convenience and efficiency of the connector.

[0054] In some embodiments, the position adjustment assembly includes a first telescopic mechanism 14 and a second telescopic mechanism 15; wherein, one end of the first telescopic mechanism 14 is installed on the main frame 11, and the other end is installed on the first installation position of the flange docking mechanism. The first telescopic mechanism 14 elongates or shortens under the control of the control instruction; one end of the second telescopic mechanism 15 is installed on the main frame 11, and the other end is installed on the second installation position of the flange docking mechanism. The second telescopic mechanism 15 elongates or shortens under the control of the control instruction; there is a preset longitudinal distance between the first installation position and the second installation position. It should be understood that in this embodiment, the longitudinal distance refers to the direction extending along the axial direction of the submarine pipeline, and the transverse direction refers to the direction extending along the radial direction of the submarine pipeline.

[0055] Specifically, the position adjustment assembly is used to realize the position adjustment of the flange docking mechanism. The flange docking mechanism is installed on the main frame 11. One ends of the first and second telescopic mechanisms 15 are both fixed on the main frame 11, and the other ends are respectively installed on the first and second installation positions of the flange docking mechanism. During the working process, a sensor (which can be a sensor carried by an underwater robot) is used to measure the current pose of the flange docking mechanism, including the position and direction. According to the preset target pose and the current pose, the pose deviation is calculated; according to the pose deviation, the control unit generates control instructions, and these instructions will guide the telescopic mechanism to perform corresponding elongation or shortening actions. During the action of the telescopic mechanism, continuously monitor the pose of the flange docking mechanism and provide feedback to the control unit. According to the feedback information, the control unit may need to adjust the control instructions to ensure that the flange docking mechanism reaches the required and relatively accurate pose until the pose deviation of the flange docking mechanism is within an acceptable range, and the telescopic mechanism stops acting. It is necessary to lock the position of the telescopic mechanism to ensure the stability of the flange docking mechanism during the operation.

[0056] When obtaining the current pose, the extended length of the piston rod can also be obtained in real time by the displacement sensor in the oil cylinder, and the attitude and position data of the current flange docking mechanism can be obtained by comparing with the reference value. For example, in the factory calibration of the equipment, the fully retracted position of the oil cylinder is set as the "reference" of 0. When the three oil cylinders are fully retracted, the plane formed by the three positions where the flange docking mechanism (hereinafter referred to as the "mechanism") is connected to the oil cylinders is the reference plane. Once the piston rod of any oil cylinder extends, the plane determined by these 3 points will change. In one case, when the three oil cylinders extend the same length h at the same time, it means that the plane determined by these 3 points is translated downward by h relative to the original reference. In the second case, when the extended length of oil cylinder 15 is greater than or less than the extended lengths of the two oil cylinders 14, the "mechanism" will tilt forward or backward. When the extended lengths of the left and right two oil cylinders 14 are different, the "mechanism" will tilt left or right. These deflection values can be obtained by the sensors built in the oil cylinders and the degree of offset or tilt relative to the "reference" can be displayed, so that the preset position of the "mechanism" can be achieved by controlling the extension of the oil cylinders in automatic control.

[0057] Further, in order to achieve pose adjustment in the horizontal plane, both the first telescopic mechanism 14 and the first mounting positions are two. The two first telescopic mechanisms 14 are respectively connected to the first mounting positions in a one-to-one correspondence, and the two first mounting positions have a preset horizontal distance.

[0058] Specifically, the first telescopic mechanism 14 and the second telescopic mechanism 15 can both be oil cylinders. That is to say, the position adjustment mechanism is three groups of oil cylinders. The oil cylinders are arranged between the main frame body 11 and the flange docking structure. Through the coordinated actions of the three oil cylinders, the adjustment of the pitch angle, tilt angle and position when the connector enters the water is completed, so that after the connector enters the water, it can have a more appropriate docking position with the guide frame and the submarine pipeline, improving the accuracy of the docking position and reducing the positioning difficulty during docking.

[0059] To improve the stability of the oil cylinders, the position adjustment assembly further includes a first mounting cross beam 16 and a second mounting cross beam 17. The first telescopic mechanism 14 is mounted on the main frame body 11 through the first mounting cross beam 16, and the second telescopic mechanism 15 is mounted on the main frame body 11 through the second mounting cross beam 17. Specifically, two longitudinal beams 18 are mounted on the main frame body 11. A plurality of mounting holes are longitudinally formed in the longitudinal beams 18. The first mounting cross beam 16 and the second mounting cross beam 17 are movably mounted on the main frame body 11 longitudinally. One end of the first telescopic mechanism 14 is mounted on the first mounting cross beam 16, and one end of the second telescopic mechanism 15 is mounted on the second mounting cross beam 17. That is to say, according to the specifications of the connector, the first mounting cross beam 16 and the second mounting cross beam 17 can select the mounting holes at appropriate positions to be fixedly connected to the longitudinal beams 18, so as to adjust the mounting positions of the first mounting cross beam 16 and the second mounting cross beam 17 on the longitudinal beams 18.

[0060] In some embodiments, the height indicating assembly includes a first mounting rod 19, a second mounting rod 110 and an adjusting structure. The first mounting rod 19 is mounted on the first side of the flange docking mechanism, and the second mounting rod 110 is mounted on the second side of the flange docking mechanism. The distance between the first mounting rod 19 and the second mounting rod 110 is adjusted by the adjusting structure; the first side and the second side are respectively located on the radial two sides of the flange docking mechanism. The adjusting structure includes two transverse mounting plates 111. A plurality of mounting holes are formed in the transverse mounting plates 111, and the first mounting rod 19 and the second mounting rod 110 are mounted on the transverse mounting plates 111 by selecting appropriate mounting holes.

[0061] The first mounting rod 19 and the second mounting rod 110 are used to display the position height of the flange docking mechanism relative to the frame. For easy observation, scale values are provided on both the first mounting rod 19 and the second mounting rod 110.

[0062] To improve the positioning performance between the equipment and the jacket, the mounting frame 1 further includes a positioning assembly. The positioning assembly is mounted on the main frame body 11, and the main frame body 11 is positioned and connected to the jacket through the positioning assembly. Specifically, the positioning assembly includes a rough positioning structure and a fine positioning structure. The rough positioning structure includes a positioning hole 113 formed in an ear plate 112 on the side of the main frame body 11 and a guide post 114 provided on the jacket. After reaching the designated underwater position, the positioning hole 113 is sleeved on the guide post 114 to achieve preliminary positioning; the fine positioning structure includes a guide post 114 provided on the jacket and a guide sleeve provided on the main frame body 11. After reaching the installation position, the guide post 114 is inserted into the guide sleeve to achieve further positioning. To achieve the guiding during the insertion of the guide post 114, the guide post 114 is of a frustum structure.

[0063] Furthermore, to cooperate with the lifting mechanism, the mounting frame 1 further includes a lifting mechanism. The lifting mechanism is movably and fixedly connected to the main frame body 11 in the transverse and / or longitudinal directions; the lifting mechanism is mounted on the top of the main frame body 11, and the lifting mechanism is adjustable in the horizontal direction (including transverse and longitudinal) to change the lifting position and adapt to the seabed inclination angle, further improving the matching with the position of the jacket. Specifically, the lifting mechanism includes a lifting beam 115 and an adjusting plate 116 mounted on the lifting beam 115. A plurality of lifting holes are formed in the adjusting plate 116 in the transverse direction, so that the hook can be selectively hooked on the lifting holes to achieve the transverse adjustability of the lifting position; at the same time, the lifting beam 115 can be selectively mounted in the mounting holes of the longitudinal beam 18 to achieve the longitudinal adjustability of the lifting position.

[0064] In addition to the above-mentioned mounting bracket 1, the present invention further provides a connector docking device including the mounting bracket 1. For the structures of other parts of the connector docking device, please refer to the prior art and will not be elaborated here.

[0065] Furthermore, the present invention further provides a position adjustment method based on the above-mentioned mounting bracket 1, as Figure 6 shown, the method includes the following steps:

[0066] S110: Obtain the current image of the connector docking device in real time; for example, the current image of the connector docking device can be obtained in real time by using a camera or other sensors carried on an underwater robot;

[0067] S120: Extract the current pose of the flange docking mechanism in the current image, including the current position and angle information;

[0068] S130: Generate a control instruction according to the relationship between the current pose and a preset target pose. The control instruction is used to control the position adjustment component to move according to a preset strategy until the current pose coincides with the target pose; that is to say, calculate the deviation between the current pose and the target pose, and generate a control instruction according to the deviation situation;

[0069] Among them, the preset strategy includes:

[0070] When the first distance between the current position and the target position of the first mounting position is greater than the second distance between the current position and the target position of the second mounting position, the control instruction controls the first telescopic mechanism 14 to shorten a preset length and / or controls the second telescopic mechanism 15 to extend a preset length, and the sum of the length values by which the first telescopic mechanism 14 shortens and the length values by which the second telescopic mechanism 15 extends is equal to the difference between the first distance and the second distance;

[0071] When the first distance is less than the second distance, the control instruction controls the first telescopic mechanism 14 to extend a preset length and / or controls the second telescopic mechanism 15 to shorten a preset length, and the sum of the length values by which the first telescopic mechanism 14 extends and the length values by which the second telescopic mechanism 15 shortens is equal to the difference between the first distance and the second distance;

[0072] Taking the jacket as a reference plane, when the first mounting position on one side is lower than the first mounting position on the other side, the control instruction controls the first telescopic mechanism 14 at the lower position to extend, and / or controls the first telescopic mechanism 14 at the higher position to shorten.

[0073] That is to say, the preset strategy can be based on comparing the distances between the current positions and the target positions of the first installation position and the second installation position. When the first distance between the current position of the first installation position and the target position is greater than the second distance between the current position of the second installation position and the target position, the strategy starts to take effect. According to the result of the distance comparison, the first telescopic mechanism 14 and the second telescopic mechanism 15 are controlled to make corresponding adjustments. If the first installation position is farther away, the first telescopic mechanism 14 will shorten by a preset length; if the second installation position is farther away, the second telescopic mechanism 15 will elongate by a preset length. During the adjustment process, the sum of the shortened length value of the first telescopic mechanism 14 and the elongated length value of the second telescopic mechanism 15 should be equal to the difference between the distance between the first installation position and the target position and the distance between the second installation position and the target position, ultimately achieving the purpose of precise docking.

[0074] Furthermore, the jacket is used as a reference plane to determine the height position of the first installation position. When one side of the first installation position is lower than the other side, the lower and higher first installation positions are identified. According to the height position, the first telescopic mechanism 14 at the lower position is controlled to elongate to increase its height; at the same time, the first telescopic mechanism 14 at the higher position is controlled to shorten to decrease its height. Through this adjustment, the balance of the height position is achieved, ensuring the accuracy of the docking position between the mounting frame 1 and the jacket.

[0075] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A mounting frame for a connector docking device, characterized in that: The mounting frame comprises: A main frame, on which a longitudinal beam is installed; A height indicating assembly is installed on the main frame, and the sea pipe to be repaired passes through the height indicating assembly; the height indicating assembly includes: a first mounting rod, the first mounting rod being mounted on a first side of a flange docking mechanism of the connector docking device; a second mounting rod, the second mounting rod being mounted on a second side of the flange docking mechanism; Scale values ​​are arranged on both the first mounting rod and the second mounting rod; The first side and the second side are respectively located on two radial sides of the flange docking mechanism.

2. The mounting bracket according to claim 1, characterized in that: Also includes: A positioning assembly is installed on the main frame, and the main frame is positioned and connected to the catheter frame through the positioning assembly.

3. The mounting bracket according to claim 2, characterized in that: The positioning components include: A rough positioning structure includes a positioning hole opened on the ear plate on the side of the main frame and a guide column arranged on the catheter frame. When in a positioning state, the positioning hole is sleeved on the guide column.

4. The mounting bracket according to claim 2, characterized in that: The positioning components also include: The precise positioning structure comprises a guide column arranged on the catheter frame and a guide sleeve arranged on the main frame body. When in the positioning state, the guide column is inserted into the guide sleeve.

5. The mounting bracket according to claim 1, characterized in that: Also includes: A lifting mechanism is fixedly connected to the main frame in a movably horizontal and / or vertical direction.

6. The mounting bracket according to claim 5, characterized in that: The lifting mechanism comprises: A lifting beam, wherein a plurality of mounting holes are formed on the longitudinal beam, and the lifting beam can be selectively mounted in the mounting holes on the longitudinal beam; The adjusting plate is installed on the lifting beam, and a plurality of lifting holes are opened transversely along the upper edge of the adjusting plate so that the lifting hook can be selectively hooked on the lifting holes.

7. The mounting bracket according to any one of claims 1 to 6, characterized in that: Also includes: An ROV handle is installed on the side of the main frame.

8. The mounting bracket according to any one of claims 1 to 6, characterized in that: Also includes: The anti-corrosion metal block is detachably mounted on the main frame.

9. The mounting bracket according to claim 8, characterized in that: The anti-corrosion metal block is connected to the main frame body by bolts, and a wire is arranged between the anti-corrosion metal block and the main frame body.

10. A connector docking device, characterized in that: include: The mounting bracket according to any one of claims 1 to 9; A flange docking mechanism is installed on the mounting frame and aligns and tightens the flange of the connector.

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