A high-to-medium frequency lightning current shunt

Abstract

This utility model provides a high-frequency lightning current shunt, relating to the field of anti-static technology. It includes a slanted support and a secondary sealing plate. The secondary sealing plate includes a connecting plate bolted to the slanted support. One side of the connecting plate is hinged to a rotating plate via a metal hinge. Two symmetrically arranged worm gears are rotatably connected to one side of the rotating plate. The worm gears rotate in both directions, allowing for a triple-adjustable structure: adjusting the distance between the two connecting plates by rotating the worm gears, adjusting the angle of the threaded cylinder, and adjusting the direction of rotation of the conductive rod. This allows the same set of slanted support and secondary sealing plate to adapt to different curvatures, such as elliptical or square shapes with rounded corners, and different inclinations, such as tilted oil tanks or irregularly shaped oil tanks with different partial shapes. This eliminates the need to design separate molds for each type of irregularly shaped oil tank, significantly reducing design and mold costs.

Description

Technical Field

[0001] This utility model relates to the field of antistatic technology, and in particular to a high-frequency lightning current shunt. Background Technology

[0002] During the storage and transportation of oil products, the flow friction generates a large amount of static electricity, which can easily form electrostatic discharge with isolated conductors that are not effectively grounded. Therefore, a high-frequency lightning current shunt in the prior art, with the publication number CN223133004U, is used in which the secondary sealing plate and the oblique support are connected by the first connecting bolt, and the oblique support, the fixing plate, and the guide plate are connected by the second connecting bolt. The secondary sealing plate is attached to the tank wall, the fixing plate can move up and down according to the up and down movement of the tank float, and the guide plate can slide up and down with the up and down movement of the float and the tank wall, ensuring a reliable electrical connection. By rotating the embossed adjusting bolt, the clamping force between the guide plate and the tank wall can be adjusted using the thread, thereby forming a reliable and stable discharge channel for lightning current and static current for the tank float, and the electrical connection will not be lost due to slight deformation between the tank wall and the float. In practical applications, oil tanks may be irregularly shaped, and in such cases, the secondary sealing plate will also be an irregularly shaped structure. To enable this invention to be installed on the irregularly shaped secondary sealing plate, a first threaded hole is made in the secondary sealing plate. The first threaded hole is adapted to the first connecting bolt for connection. A second threaded hole is adapted to the second connecting bolt. The oblique support is Z-shaped, and the fitting section and the butt joint section are L-shaped, allowing for close contact with the secondary sealing plate. The butt joint section hooks the side of the secondary sealing plate, making the connection between the oblique support and the secondary sealing plate more stable. The fixing plate is L-shaped, and the receiving section is used to connect with the fixing plate.

[0003] However, the secondary sealing plates of conventional round oil tanks can be mass-produced using standardized molds, but irregularly shaped oil tanks require molds to be designed separately for each type of shape. Furthermore, if there are slight differences in the size of the oil tanks, the molds need to be modified again, further increasing costs. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a high-frequency lightning current shunt.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a high-frequency lightning current shunt, comprising a slanted support member and a secondary sealing plate. The secondary sealing plate includes a connecting plate connected to the slanted support member by bolts. One side of the connecting plate is hinged to a rotating plate via a metal hinge. Two symmetrically arranged worm gears are rotatably connected to one side of the rotating plate. A metal strip is fixedly installed on the side of the worm gear. A conductive rod is rotatably connected to the end of the metal strip away from the worm gear. A connecting piece for connecting to the wall of the oil tank is fixedly installed at one end of the conductive rod.

[0006] Preferably, both the rotating plate and the connecting plate are hinged to the side opposite to the inclined support member with threaded cylinders. The openings of the two threaded cylinders are opposite each other and a bidirectional screw is provided between the two threaded cylinders. The threads at both ends of the bidirectional screw are respectively threaded to the inner walls of the two threaded cylinders.

[0007] Preferably, the swing direction of the threaded cylinder is parallel to the swing direction of the rotating plate.

[0008] Preferably, a bidirectional worm is rotatably connected to one side of the rotating plate between two worm wheels, and the two ends of the bidirectional worm are respectively helically engaged with the two worm wheels.

[0009] Preferably, a screw is fixedly installed at the other end of the conductive rod. The two ends of the screw extend in a flat shape along the radial direction and penetrate the surface of the metal strip. A nut for pressing against the surface of the metal strip is threaded onto the screw.

[0010] Preferably, a fixing plate is installed on one side of the oblique support member, and a metal wire is fixedly connected to the fixing plate. One end of the metal wire is provided with a winch for installation on the oil tank floating roof.

[0011] Preferably, one end of the metal wire is wound around the winch reel, the winch reel is made of conductive material and the winch reel is connected to the winch housing through a bearing shaft, the winch housing is made of metal and a fixed flange of the same material is fixedly installed on the winch housing and is detachably connected to the oil tank floating roof.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, a triple adjustable structure is achieved by rotating the worm gear to adjust the distance between the two connecting plates, or by adjusting the angle of the threaded cylinder and the direction of the conductive rod rotation. This allows the same set of oblique support components and secondary sealing plates to be adapted to different curvatures, such as elliptical and square shapes with rounded corners, and different inclinations, such as inclined oil tanks and irregularly shaped oil tanks with different local shapes. There is no need to design molds separately for each type of irregularly shaped oil tank, which greatly reduces design costs and mold opening costs.

[0014] 2. In this utility model, the rotating connection characteristics of the conductive rod and the metal strip are utilized to push the conductive rod to rotate around the screw, thereby changing the orientation of the end connecting piece to adapt to the irregular curved surface or protrusion of the tank wall. After the direction of the connecting piece is adjusted to fit the tank wall, the nut on the screw at the end of the conductive rod is rotated to make the nut press against the surface of the metal strip, fixing the screw and the metal strip, ensuring the stability of the connecting piece position, and ensuring a smooth electrostatic conduction path. Attached Figure Description

[0015] Figure 1This utility model provides a three-dimensional structural diagram of a high-frequency lightning current shunt.

[0016] Figure 2 This utility model proposes a high-frequency lightning current shunt. Figure 1 A schematic diagram of the structure viewed from below;

[0017] Figure 3 This utility model provides a structural schematic diagram of a high-frequency lightning current shunt connection plate;

[0018] Figure 4 This is a schematic diagram of the structure at the end of the conductive rod.

[0019] Legend: 1. Fixed plate; 2. Winch; 3. Fixed flange; 4. Metal wire; 5. Connecting piece; 6. Metal strip; 7. Conductive rod; 8. Mitering support; 9. Rotating plate; 10. Connecting plate; 11. Double-acting screw; 12. Threaded cylinder; 13. Double-acting worm gear; 14. Worm wheel; 15. Screw; 16. Nut. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figures 1-4As shown, a high-frequency lightning current shunt includes a slanted support member 8 and a secondary sealing plate. The secondary sealing plate includes a connecting plate 10 connected to the slanted support member 8 by bolts. A rotating plate 9 is hinged to one side of the connecting plate 10 via a metal hinge. Two symmetrically arranged worm gears 14 are rotatably connected to one side of the rotating plate 9. A bidirectional worm gear 13 is rotatably connected between the two worm gears 14 on one side of the rotating plate 9. The two ends of the bidirectional worm gear 13 are helically engaged with the two worm gears 14 respectively. In actual use, the two worm gears 14 can be engaged by rotating the bidirectional worm gear 13. 4. The two metal bars 6 are fixedly installed on the side of the worm gear 14 and rotate at the same speed in opposite directions. The end of the metal bar 6 away from the worm gear 14 is rotatably connected to the conductive rod 7. The end of the conductive rod 7 is fixedly installed with a connecting piece 5 for connecting to the tank wall. By rotating the two worm gears 14 at the same speed in opposite directions, the two metal bars 6 can swing relative to each other or towards each other, which makes it easy to adjust the distance between the two conductive rods 7. The distance between the two connecting pieces 5 can be adjusted according to the curvature of the tank wall. Furthermore, the placement angle of the connecting piece 5 can be adjusted by rotating the conductive rod 7 to drive the connecting piece 5 to rotate according to the inclination of the installation position.

[0023] Both the rotating plate 9 and the connecting plate 10 are hinged to the side opposite to the oblique support member 8 with threaded cylinders 12. The openings of the two threaded cylinders 12 are opposite each other and a bidirectional screw 11 is provided between the two threaded cylinders 12. The threads at both ends of the bidirectional screw 11 are threaded to the inner walls of the two threaded cylinders 12 respectively. The swing direction of the threaded cylinders 12 is set parallel to the swing direction of the rotating plate 9. In actual use, the two threaded cylinders 12 connected to it can be moved relative to each other or towards each other by rotating the bidirectional screw 11 according to the shape of the oil tank wall. When the two threaded cylinders 12 move relative to each other or towards each other, the angle between the rotating plate 9 and the connecting plate 10 can be adjusted by using the hinge with the rotating plate 9 and the connecting plate 10, so that the rotating plate 9 can be tilted, and thus the included angle between the connecting piece 5 and the connecting plate 10 can be adjusted.

[0024] A screw 15 is fixedly installed at the other end of the conductive rod 7. The two ends of the screw 15 extend in a flat shape along the radial direction and penetrate the surface of the metal strip 6. A nut 16 is threaded onto the screw 15 to press against the surface of the metal strip 6. In use, the connecting piece 5 can be rotated by rotating the conductive rod 7 and the metal strip 6. After the connecting piece 5 is fixed to the tank wall, the nut 16 on the screw 15 is rotated to press against the metal strip 6, thus ensuring a tight connection between the screw 15 and the metal strip 6 and ensuring smooth conduction of static electricity.

[0025] A fixing plate 1 is installed on one side of the oblique support member 8. A metal wire 4 is fixedly connected to the fixing plate 1. One end of the metal wire 4 is equipped with a winch 2 for installation on the oil tank floating roof. The other end of the metal wire 4 is wound around the winding spool of the winch 2. The winding spool of the winch 2 is made of conductive material and is connected to the outer shell of the winch 2 through a bearing shaft. The outer shell of the winch 2 is made of metal and is fixedly installed with a fixing flange 3 of the same material that is detachably connected to the oil tank floating roof. In use, the fixing flange 3 is installed on the oil tank floating roof using bolts. On the floating plate, the static electricity generated on the surface of the oil tank float is conducted through the fixed flange 3 to the conductive shell of the winch 2. Then, under the connection of the metal bearing, the static electricity is transferred to the internal winding spool, and then to the metal wire 4. Since the metal wire 4 is connected to the fixed plate 1, the static electricity can be transferred to the fixed plate 1. According to the prior art, a guide plate is installed on the fixed plate 1. By using the guide plate to adhere to the tank wall, the static electricity on the fixed plate 1 can be transferred to the tank wall through the guide plate, thus realizing static electricity discharge.

[0026] The method of using this utility model is as follows: By rotating the bidirectional worm gear 13, the meshing relationship between the spirals at both ends of the worm gear 13 and the two worm wheels 14 is utilized to drive the two worm wheels 14 to rotate in opposite directions at the same speed. When the worm wheels 14 rotate, they drive the metal strips 6 fixed on the side to swing synchronously. The two metal strips 6 swing relative to each other or towards each other as the worm wheels 14 rotate. The end of the metal strip 6 away from the worm wheel 14 is rotated to drive the conductive rod 7 to move, thereby adjusting the distance between the two conductive rods 7. According to the actual curvature of the oil tank wall, the distance between the connecting pieces 5 at the ends of the two conductive rods 7 is observed until the connecting pieces 5 can fit against the surface of the tank wall, thus completing the distance adaptation.

[0027] Alternatively, the bidirectional screw 11 between the two threaded cylinders 12 can be rotated. By utilizing the meshing relationship between the threads at both ends of the bidirectional screw 11 and the threaded cylinders 12, the two threaded cylinders 12 can be moved relative to each other or towards each other. When the threaded cylinders 12 move, since they are hinged to the rotating plate 9 and the connecting plate 10, and the swing direction of the threaded cylinders 12 is parallel to the swing direction of the rotating plate 9, the rotating plate 9 will be driven to rotate around the metal hinge, changing the included angle between the rotating plate 9 and the connecting plate 10, thereby adjusting the tilt angle between the connecting piece 5 and the connecting plate 10. According to the actual tilt of the oil tank installation position, the bidirectional screw 11 can be finely adjusted until the connecting piece 5 can completely fit the tilted surface of the tank wall, thus completing the angle adaptation.

[0028] The wiring diagram of the winch 2 in this utility model is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the winch 2 will not be explained in detail.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-frequency lightning current shunt, comprising a slanted support member (8) and a secondary sealing plate, characterized in that: The secondary sealing plate includes a connecting plate (10) that is bolted to the oblique support (8). One side of the connecting plate (10) is hinged to a rotating plate (9) via a metal hinge. Two symmetrically arranged worm gears (14) are rotatably connected to one side of the rotating plate (9). A metal strip (6) is fixedly installed on the side of the worm gear (14). A conductive rod (7) is rotatably connected to the end of the metal strip (6) away from the worm gear (14). A connecting piece (5) for connecting to the oil pipe tank wall is fixedly installed at one end of the conductive rod (7).

2. The high-frequency lightning current shunt according to claim 1, characterized in that: The rotating plate (9) and the connecting plate (10) are both hinged to the side of the oblique support member (8) with threaded cylinders (12). The openings of the two threaded cylinders (12) are opposite each other and a bidirectional screw (11) is provided between the two threaded cylinders (12). The threads at both ends of the bidirectional screw (11) are respectively threaded to the inner walls of the two threaded cylinders (12).

3. The high-frequency lightning current shunt according to claim 2, characterized in that: The swing direction of the threaded cylinder (12) is set parallel to the swing direction of the rotating plate (9).

4. The high-frequency lightning current shunt according to claim 1, characterized in that: The rotating plate (9) is rotatably connected to a bidirectional worm (13) between two worm wheels (14) on one side. The two ends of the bidirectional worm (13) are respectively helically engaged with the two worm wheels (14).

5. The high-frequency lightning current shunt according to claim 1, characterized in that: The other end of the conductive rod (7) is fixedly installed with a screw (15). The two ends of the screw (15) extend in a flat shape along the radial direction and the screw (15) penetrates the surface of the metal strip (6). A nut (16) for pressing against the surface of the metal strip (6) is threaded onto the screw (15).

6. The high-frequency lightning current shunt according to claim 1, characterized in that: A fixing plate (1) is installed on one side of the oblique support (8), and a metal wire (4) is fixedly connected to the fixing plate (1). A winch (2) for installation on the oil tank floating plate is provided at one end of the metal wire (4).

7. The high-frequency lightning current shunt according to claim 6, characterized in that: One end of the metal wire (4) is wound around the winding shaft of the winch (2). The winding shaft of the winch (2) is made of conductive material and is connected to the outer shell of the winch (2) through a bearing shaft. The outer shell of the winch (2) is made of metal and is fixedly installed with a fixed flange (3) of the same material that is detachably connected to the oil tank floating plate.

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