Grounding protection device for port machinery

Abstract

The utility model discloses a port machinery grounding protection device. The port mechanical grounding protection device comprises a hanging bracket fixedly connected with a port machine, a conductive base is arranged at the bottom of the hanging bracket, a plurality of blind holes are formed in the bottom face of the conductive base, conductive balls are arranged in the blind holes, the diameter of the conductive balls is matched with the inner diameter of the blind holes, a cover plate is arranged at the opening ends of the blind holes, and a plurality of limiting holes are formed in the cover plate. Conductive springs are arranged between the conductive balls and the closed ends of the blind holes, the outer diameter of the conductive springs is matched with the inner diameter of the blind holes, and the conductive springs tightly press the conductive balls to extend out of the limiting holes. According to the utility model, the problems of grounding function failure and large lightning protection potential safety hazard caused by poor contact or no contact in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding protection, in particular to a grounding protection device for port machinery. Background Art

[0002] Port machinery includes heavy equipment such as stackers, ship unloaders, and ship loaders. Due to the special working environment (relatively open and relatively humid in the open-air material yard), they are vulnerable to lightning strikes. The current lightning protection measure is to introduce lightning current into the ground through the grounding shoe sliding on the track. However, due to factors such as construction quality and deformation of the cement foundation, the port machinery track usually has unevenness, joints, local bending, top surface tilt, etc., which leads to serious wear of the grounding shoe, poor contact or no contact, resulting in failure of the grounding function, and a major lightning protection safety hazard. Utility Model Content

[0003] The utility model aims to provide a port machinery grounding protection device which can always keep good contact with the track and eliminate the potential safety hazards of lightning protection in view of the shortcomings of the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model port machinery grounding protection device is:

[0005] A port machinery grounding protection device comprises a hanger fixedly connected to the port machinery, a conductive base is arranged at the bottom of the hanger, a plurality of blind holes are provided on the bottom surface of the conductive base, conductive balls are arranged in the blind holes, the diameter of the conductive balls matches the inner diameter of the blind holes, a cover plate is arranged at the open end of the blind hole, a plurality of limiting holes are provided on the cover plate, the limiting holes correspond to the blind holes one by one to limit the conductive balls from slipping off, a conductive spring is arranged between the conductive balls and the closed end of the blind hole, the outer diameter of the conductive spring matches the inner diameter of the blind hole, and the conductive spring presses the conductive balls to extend out of the limiting holes.

[0006] Preferably, the hanger includes a horizontal galvanized angle steel, vertical galvanized angle steels are arranged on both sides of the horizontal galvanized angle steel, a conductive wire is fixed to the middle of the horizontal galvanized angle steel through a bolt assembly, and a steel connecting plate connected to the conductive base is arranged at the bottom of the horizontal galvanized angle steel.

[0007] Preferably, the side wall of the limiting hole is a spherical surface, and the diameter of the spherical surface matches the diameter of the conductive ball.

[0008] Preferably, the conductive ball is a stainless steel ball, and the conductive spring is a stainless steel spring.

[0009] Preferably, the cover plate is detachably connected to the conductive base.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The stainless steel balls move along with the port machinery on the track. Under the action of the stainless steel springs, they can overcome the unevenness, joints, local bending, top surface inclination, etc. on the track, and always keep the stainless steel balls in good contact with the track, thereby eliminating the potential safety hazards of lightning protection.

[0012] 2. Multiple stainless steel balls form multiple grounding points, which are safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model port machinery grounding protection device;

[0014] Figure 2 It is a structural schematic diagram of the utility model port machinery grounding protection device;

[0015] Figure 3 It is a structural diagram of the hanger;

[0016] Figure 4 It is a structural diagram of the steel base;

[0017] Figure 5 It is a structural diagram of the cover.

[0018] Among them, 1 hanger, 11 horizontal galvanized angle steel, 12 vertical galvanized angle steel, 13 steel connecting plate, 2 bolt assembly, 3 conductive wire, 4 steel base, 41 blind hole, 5 conductive ball, 6 cover plate, 61 limit hole, 7 conductive spring, 8 track. DETAILED DESCRIPTION

[0019] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0020] like Figure 1-5As shown, a port machinery grounding protection device includes a hanger 1, the hanger includes a horizontal galvanized angle steel 11, vertical galvanized angle steels 12 are welded on both sides of the horizontal galvanized angle steel, the vertical galvanized angle steel is connected to the port machinery, the middle side wall of the horizontal galvanized angle steel is fixedly connected to the conductive wire 3 through a bolt assembly 2, a steel connecting plate 13 is welded to the bottom surface of the horizontal galvanized angle steel, the steel connecting plate is detachably connected to a steel base 4, a plurality of evenly distributed blind holes 41 are provided on the bottom surface of the steel base, conductive balls 5 are installed in the blind holes, the conductive balls are stainless steel balls, the diameter of the stainless steel balls matches the inner diameter of the blind holes, and the stainless steel balls move up and down The blind hole plays a guiding role. A cover plate 6 is arranged at the open end of the blind hole. The cover plate is made of steel. A plurality of limit holes 61 are provided on the cover plate. The limit holes correspond to the blind holes one by one to limit the slipping of the stainless steel balls. The side walls of the limit holes are spherical surfaces. The diameter of the spherical surfaces matches the diameter of the stainless steel balls, which is convenient for the rolling of the stainless steel balls. The cover plate is detachably connected to the steel base, which is convenient for processing the limit holes. A conductive spring 7 is installed between the stainless steel balls and the closed end of the blind hole. The conductive spring is a stainless steel spring. The outer diameter of the stainless steel spring matches the inner diameter of the blind hole. The stainless steel spring presses the stainless steel balls to extend out of the limit holes.

[0021] The specific working process and principle of a port machinery grounding protection device: the track 8, stainless steel balls, stainless steel springs, steel base, steel connecting plate, horizontal galvanized angle steel, bolt assembly, and conductive wire form a passage. The stainless steel balls move on the track with the port machinery. Under the action of the stainless steel springs, the unevenness, joint seams, local bending, top surface inclination, etc. on the track can be overcome, and the stainless steel balls and the track are always kept in good contact, and the passage is not cut off, thereby eliminating the potential safety hazards of lightning protection. In addition, the utility model has a simple structure, a long service life, and is safe and reliable.

Claims

1. A port machinery grounding protection device, Features: The invention comprises a hanger fixedly connected to the port machinery, wherein a conductive base is arranged at the bottom of the hanger, a plurality of blind holes are provided on the bottom surface of the conductive base, conductive balls are arranged in the blind holes, the diameter of the conductive balls matches the inner diameter of the blind holes, a cover plate is arranged at the open end of the blind holes, a plurality of limiting holes are provided on the cover plate, the limiting holes correspond to the blind holes one by one, so as to limit the conductive balls from slipping off, a conductive spring is arranged between the conductive balls and the closed end of the blind holes, the outer diameter of the conductive spring matches the inner diameter of the blind holes, and the conductive spring presses the conductive balls to extend out of the limiting holes.

2. The port machinery grounding protection device according to claim 1, Features: The hanger comprises a horizontal galvanized angle steel, vertical galvanized angle steels are arranged on both sides of the horizontal galvanized angle steel, a conductive wire is fixedly connected to the middle of the horizontal galvanized angle steel through a bolt assembly, and a steel connecting plate connected to a conductive base is arranged at the bottom of the horizontal galvanized angle steel.

3. The port machinery grounding protection device according to claim 1, Features: The side wall of the limiting hole is a spherical surface, and the diameter of the spherical surface matches the diameter of the conductive ball.

4. The port machinery grounding protection device according to claim 3, Features: The conductive ball is a stainless steel ball, and the conductive spring is a stainless steel spring.

5. The port machinery grounding protection device according to claim 1, Features: The cover plate is detachably connected to the conductive base.

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