Foldable supporting device for offshore platform lightning protection system

Abstract

The foldable supporting device for the offshore platform lightning protection system comprises a supporting bottom plate, a U-shaped limiting support is fixed to the tail of the supporting bottom plate, the lower portion of a main supporting frame is rotationally connected between a left side wing plate and a right side wing plate of the U-shaped limiting support, a lightning rod is fixed to the top of the main supporting frame, and the U-shaped limiting support is fixed to the tail of the supporting bottom plate. Motor supporting bases are fixed to the supporting bottom plate, a servo motor is fixed to the motor supporting base on the left side, and folding of the lightning rod is adjusted through the servo motor. According to the device, the lightning rod can be folded in an environment with better natural conditions, so that the quality and the performance of the lightning rod are ensured; when lightning protection is needed, the device is unfolded through signal control, and the lightning rod is erected to work vertically, so that the lightning rod can be protected, the maintenance cost is reduced, the lightning protection quality is improved, and an important electrical working system on an offshore platform can be protected.

Description

Technical Field

[0001] The utility model relates to a lightning protection device, in particular to a foldable support device for a lightning protection system of an offshore platform. Background Art

[0002] At present, lightning rods are usually installed on the top of modules, and the support structure of the lightning rods is usually a fixed rigid support structure. It is easily damaged under the influence of long-term wind and sun exposure, and it is inevitable to have failures during thunderstorm weather, which is likely to cause the lightning protection of the ocean platform to fail. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the existing technology and provide a foldable support device for a lightning protection system of an offshore platform, which can protect the lightning rod, reduce the maintenance cost, improve the lightning protection quality, and thus protect the important electrical working systems on the offshore platform.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A foldable support device for a lightning protection system of an offshore platform of the utility model includes a support bottom plate. A U-shaped limit support is fixed at the tail of the support bottom plate. The lower part of the main support frame is rotatably connected between the left and right wing plates of the U-shaped limit support. The lightning rod is fixed at the top of the main support frame. A strip-shaped groove is opened on the main support frame. Motor support seats are respectively fixed on the left and right sides of the support bottom plate at the front end of the opening of the U-shaped limit support. A servo motor is fixed on the left motor support seat. The n-shaped auxiliary support frame includes a sliding rod arranged in the horizontal direction. The tops of the left and right first connecting rods are respectively rotatably connected to the sliding rod. One ends of the left and right first connecting shafts arranged in the horizontal direction are respectively fixed to the lower ends of the same-side first connecting rods. The sliding rod is arranged through the strip-shaped groove. The output shaft of the servo motor is fixedly connected to the lower end of the left first connecting shaft through a coupling. The right first connecting shaft is connected to a bearing in the right motor support seat. The main support frame can be rotatably supported on the support bottom plate or rotated to be arranged vertically under the action of the n-shaped auxiliary support frame. When the main support frame is arranged vertically, the lower part can lean against the inner wall of the web of the U-shaped limit support. The servo motor is connected to a computer through a data line.

[0006] The device of the utility model can realize retracting the lightning rod in an environment with good natural conditions to ensure the quality and performance of the lightning rod; when lightning protection is required, the device is unfolded through signal control to erect the lightning rod for vertical operation, which can protect the lightning rod, reduce the maintenance cost, improve the lightning protection quality, and thus protect the important electrical working systems on the offshore platform. Description of the Drawings

[0007] Figure 1 Schematic structural diagram of the open state of a foldable support device for a lightning protection system on an offshore platform according to the present utility model;

[0008] Figure 2 is Figure 1 Schematic structural diagram of the closed state of the device shown;

[0009] Figure 3 is Figure 1 Schematic structural diagram of the foldable part of the device;

[0010] Figure 4 is Figure 1 Schematic structural diagram of the secondary support frame in the device shown;

[0011] Figure 5 is Figure 1 Schematic structural diagram of the main support frame in the device shown. Detailed implementation mode

[0012] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] As shown in the accompanying drawings, a foldable support device for a lightning protection system on an offshore platform according to the present utility model includes a support base plate 1. A U-shaped limit support 3 is fixed to the tail of the support base plate 1. The lower part of the main support frame 5 is rotatably connected between the left and right wing plates of the U-shaped limit support. A lightning rod 6 is fixed to the top of the main support frame. A strip-shaped groove 5-2 is formed in the main support frame.

[0014] As an implementation mode of the present utility model, the rotational connection structure between the lower part of the main support frame 5 and the left and right wing plates of the U-shaped limit support is as follows: The main support frame 5 includes a main support rod 5-1. A second connecting shaft 5-3 arranged horizontally is fixed to the left and right sides of the bottom of the main support rod respectively. The two second connecting shafts respectively pass through through holes formed in the wing plates of the corresponding side of the U-shaped limit support and are connected by nuts. The two second connecting shafts can rotate in the through holes of the wing plates.

[0015] Further preferably, a threaded hole is formed in the top of the main support rod, and the lower part of the lightning rod is threadedly connected and fixed to the threaded hole.

[0016] On the left and right sides of the support base plate 1 at the front end of the opening of the U-shaped limit support, motor support seats 7 are respectively fixed. A servo motor 2 is fixed on the left motor support seat 7. The n-shaped auxiliary support frame 4 includes a sliding rod 4-2 arranged in the horizontal direction. The tops of the first connecting rods 4-1 on the left and right sides are respectively rotationally connected to the sliding rod. One ends of the left and right first connecting shafts 4-3 arranged in the horizontal direction are respectively fixed (preferably, connected by thread) to the lower ends of the first connecting rods on the same side. The sliding rod passes through the strip-shaped groove. The output shaft of the servo motor 2 is fixedly connected to the lower end of the first connecting shaft 4-3 on the left through a coupling. The first connecting shaft 4-3 on the right is connected to a bearing in the motor support seat 7 installed on the right. The main support frame can be rotationally supported on the support base plate or rotated to be arranged vertically under the action of the n-shaped auxiliary support frame. When the main support frame is arranged vertically, the lower part can lean against the inner wall of the web of the U-shaped limit support.

[0017] The servo motor 2 is connected to a computer through a data cable.

[0018] The working process of this device is as follows:

[0019] When the offshore platform is in non-thunderstorm weather, the servo motor 2 moves to drive the first connecting rod 4-1 of the auxiliary support frame 4 to rotate. The left and right first connecting rods 4-1 rotate, and the sliding rod 4-2 slides up and down in the strip-shaped groove 5-2, so that the main support rod 5-1 of the main support frame 5 is horizontally laid down on the support base plate 1, and the lightning rod 6 is in a non-working state.

[0020] When it is predicted that a thunderstorm is about to come, the computer controls the servo motor 2 to rotate, driving the left and right first connecting rods 4-1 of the auxiliary support frame 4 to rotate in the reverse direction. The first connecting rod 4-1 drives the sliding rod 4-2 to rotate, and the sliding rod 4-2 slides in the strip-shaped groove 5-2, so that the main support frame 5 rotates counterclockwise by 90 degrees. The limit support 3 on the support base plate 1 keeps the main support frame 5 in a vertical state.

[0021] After the thunderstorm weather has passed, it returns to the non-working state again, and so on in a cycle.

Claims

1. A foldable support device for a lightning protection system of an offshore platform, comprising a support bottom plate (1). A U-shaped limit support (3) is fixed at the tail of the support bottom plate (1). The lower part of the main support frame (5) is rotatably connected between the left and right wing plates of the U-shaped limit support. A lightning rod (6) is fixed at the top of the main support frame. A strip-shaped groove (5-2) is formed in the main support frame. Motor support seats (7) are respectively fixed on the left and right sides of the support bottom plate (1) at the front end of the opening of the U-shaped limit support. A servo motor (2) is fixed on the left motor support seat. The n-shaped auxiliary support frame (4) includes a sliding rod (4-2) arranged in the horizontal direction. The tops of the left and right first connecting rods (4-1) are respectively rotatably connected to the sliding rod. One ends of the left and right first connecting shafts (4-3) arranged in the horizontal direction are respectively fixed to the lower ends of the first connecting rods on the same side. The sliding rod passes through the strip-shaped groove. The output shaft of the servo motor is fixedly connected to the lower end of the left first connecting shaft through a coupling. The right first connecting shaft is connected to a bearing in the right motor support seat. The main support frame can be rotatably supported on the support bottom plate or rotated to be arranged vertically under the action of the n-shaped auxiliary support frame. When the main support frame is arranged vertically, its lower part can lean against the inner wall of the web of the U-shaped limit support. The servo motor is connected to a computer through a data line.

2. The foldable support device for the lightning protection system of an offshore platform according to claim 1, characterized in that : The rotation connection structure between the lower part of the main support frame (5) and the left and right wing plates of the U-shaped limit support is as follows: The main support frame includes a main support rod (5-1). A second connecting shaft (5-3) arranged in the horizontal direction is respectively fixed on the left and right sides of the bottom of the main support rod. The two second connecting shafts respectively pass through through holes formed in the wing plates of the U-shaped limit support on the corresponding sides and are connected by nuts. The two second connecting shafts can rotate in the through holes of the wing plates.

3. The foldable support device for the lightning protection system of an offshore platform according to claim 1 or 2, characterized in that : A threaded hole is formed at the top of the main support rod. The lower part of the lightning rod is fixedly connected to the threaded hole by threading.

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