Lightning protection mechanism and crane

Abstract

A lightning protection mechanism and a crane belong to the technical field of engineering machinery. The device is characterized by comprising a lightning rod, a drainage wire, a grounding electrode, a remote controller, a controller and a hydraulic oil cylinder, the lightning rod is electrically connected with the grounding electrode through a drainage wire, the remote controller is in communication connection with the controller, the controller is connected with an electromagnetic valve of the hydraulic oil cylinder, and a piston rod of the hydraulic oil cylinder is connected with the grounding electrode. According to the utility model, an automatic grounding scheme is adopted, the remote controller operates the hydraulic oil cylinder to press the grounding electrode into the ground by a preset depth, additional manual participation is not needed, and convenience and rapidness are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lightning protection mechanism and crane belong to engineering machinery technical field. BACKGROUND

[0002] The grounding electrode of the conventional grounding device adopts pre-buried type and does not have a moving function. At present, some high-altitude lifting equipment (such as cranes) have the demand of working in thunderstorm weather, and it is required to assemble a lightning protection mechanism. The grounding electrode in the lightning protection mechanism is generally hammered into the ground by artificial knocking, and the grounding electrode is pulled out by artificial labor when not in use, which is time-consuming, laborious and unsafe. SUMMARY

[0003] The utility model discloses a lightning protection mechanism and crane, adopt automatic grounding scheme, through the remote controller control hydraulic cylinder, press the grounding electrode into the ground predetermined depth, do not need extra manual participation, convenient and fast.

[0004] The technical scheme of the utility model is as follows:

[0005] The utility model discloses a lightning protection mechanism, characterized by comprising: lightning rod, drainage line, grounding electrode, remote controller, controller, hydraulic cylinder, the lightning rod is electrically connected with the grounding electrode through the drainage line, the remote controller is connected with the controller, the controller is connected with the electromagnetic valve of hydraulic cylinder, the piston rod of hydraulic cylinder is connected with the grounding electrode.

[0006] In the above scheme, the operator sends an instruction to the controller through the remote controller, and the controller controls the oil path direction of the hydraulic cylinder through the electromagnetic valve. When the rodless cavity of the hydraulic cylinder is filled with oil and the rod cavity is filled with oil, the piston rod is extended, and the grounding electrode is pressed into the ground. When the rod cavity of the hydraulic cylinder is filled with oil and the rodless cavity is filled with oil, the piston rod is retracted, and the grounding electrode is pulled out of the ground. The whole process is convenient to operate, time-saving and labor-saving.

[0007] Further, if the grounding electrode is directly assembled and connected with the cylinder head of the hydraulic cylinder, the current will be transmitted to the whole high-altitude lifting equipment through the hydraulic cylinder. In order to avoid this phenomenon, the piston rod of the hydraulic cylinder is connected with the grounding electrode through an insulation assembly.

[0008] Further, the insulation assembly comprises a nylon seat and a stainless steel base, the upper and lower end faces of the nylon seat are respectively provided with cavities, the cylinder head flange plate of the hydraulic cylinder is embeddedly installed in the upper end face cavity of the nylon seat, and the stainless steel base is embeddedly installed in the lower end face cavity of the nylon seat.

[0009] In the above scheme, the cylinder head flange plate of the hydraulic cylinder is installed at the end of the piston rod, the nylon seat is made of insulating material, the grounding electrode is insulated and separated from the hydraulic cylinder through the nylon seat, and the two cavities of the nylon seat can ensure the stability of installation.

[0010] Further, the insulating assembly further comprises a nylon sealing plate and a nylon sleeve; the nylon sealing plate is installed at the lower end face cavity opening of the nylon seat and is provided with a through hole for the grounding electrode to pass through; the stainless steel base, the nylon seat and the cylinder head flange plate of the hydraulic cylinder are connected into an integrated body through fixing screws, and the nylon sleeve is sleeved on the fixing screws. The nylon sleeve and the nylon sealing plate are also made of insulating material, so that the fixing screws are prevented from contacting the stainless steel base and the current of the grounding electrode is prevented from being transmitted to the hydraulic cylinder through the fixing screws.

[0011] Further, the stainless steel base is provided with a stainless steel bent plate for fixing the drainage wire, and the nylon sealing plate is provided with a bayonet that matches the horizontal part of the stainless steel bent plate, so that the stainless steel bent plate and the stainless steel base are assembled.

[0012] Further, the drainage wire is built in the drag chain, and the drainage wire and the equipment are further physically isolated.

[0013] The second object of the utility model is to provide a crane, characterized in that the whole vehicle is provided with the above lightning protection mechanism, the lightning rod is assembled on the lifting platform of the crane, the drainage wire for lightning protection grounding is laid on the side surface of the arm body and the vehicle frame, and the hydraulic cylinder is installed on the two sides of the chassis of the crane through the fixing seat.

[0014] In the utility model, the grounding electrode is assembled on the stainless steel base through threads, the stainless steel bent plate is fixed on the stainless steel base through bolts, the drainage wire is fixed on the stainless steel bent plate, the lightning return circuit is ensured to be unobstructed, the cylinder head flange plate of the hydraulic cylinder and the stainless steel base are separated through the nylon seat, the stainless steel base and the nylon seat are fixed on the cylinder head flange plate as a whole after the fixing screws pass through the nylon sleeve, and the whole lightning protection mechanism and the crane are physically isolated. The utility model solves the safety problem of the equipment that needs to work in high altitude, thunderstorm and hurricane weather under special environment. ACCOUNT OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the lightning protection mechanism of the utility model (the lightning rod is not shown in the figure);

[0016] Figure 2 It is a top view of the lightning protection mechanism of the utility model;

[0017] Figure 3 It is Figure 2 It is an A-A sectional view in the middle;

[0018] Figure 4 It is Figure 2Cross-sectional view of the middle section (BB);

[0019] Figure 5 This is a schematic diagram of the nylon seat in this utility model;

[0020] Figure 6 This is a schematic diagram of the stainless steel base in this utility model;

[0021] Figure 7 This is a schematic diagram of the nylon sleeve in this utility model;

[0022] Figure 8 This is a schematic diagram of the nylon sealing plate in this utility model;

[0023] Figure 9 This is a schematic diagram of the stainless steel bent plate in this utility model;

[0024] Figure 10 This is a schematic diagram of the grounding electrode in this utility model;

[0025] In the diagram: 1-fixed seat, 2-drag chain (with internal guide wire), 3-hydraulic cylinder, 4-grounding electrode, 5-nylon seat, 6-stainless steel base, 7-nylon sleeve, 8-nylon sealing plate, 8-1-through hole, 8-2-bayonet, 9-stainless steel bent plate, 10-cylinder head flange plate, 11-piston rod, 12-fixing screw. Detailed Implementation

[0026] Example 1

[0027] A lightning protection mechanism includes: a lightning rod, a drain wire, a grounding electrode, a remote controller, a controller, and a hydraulic cylinder. The lightning rod is electrically connected to the grounding electrode via the drain wire. The remote controller is communicatively connected to the controller. The controller is connected to the solenoid valve of the hydraulic cylinder, and the piston rod of the hydraulic cylinder is connected to the grounding electrode. An operator sends commands to the controller via the remote controller, and the controller controls the hydraulic circuit of the hydraulic cylinder via the solenoid valve, causing the grounding electrode to be pressed into or pulled out of the ground.

[0028] In one embodiment of this utility model, the piston rod of the hydraulic cylinder 3 is connected to the grounding electrode 4 through an insulating component.

[0029] In one embodiment of this utility model, the insulating assembly includes a nylon seat 5, a stainless steel base 6, a nylon sleeve 7, and a nylon sealing plate 8. The upper and lower end faces of the nylon seat are respectively provided with cavities. The piston rod 11 of the hydraulic cylinder has a cylinder head flange plate 10 at its end, which is embedded in the upper end face cavity of the nylon seat 5. The stainless steel base 6 is embedded in the lower end face cavity of the nylon seat 5. After the fixing screw 12 passes through the nylon sleeve 7, the stainless steel base 6 and the nylon seat 5 are integrally fixed to the cylinder head flange plate 10. The head of the grounding electrode 4 is threaded into the center hole of the stainless steel base 6. The nylon sealing plate 8 is installed at the opening of the lower end face cavity of the nylon seat 5 and has a through hole 8-1 for the grounding electrode to pass through.

[0030] In one embodiment of this utility model, the stainless steel curved plate 9 is fixed to the stainless steel base 6 by bolts, and the guide line is fixed to the stainless steel curved plate. The nylon sealing plate is provided with a snap-fit ​​8-2 that matches the horizontal part of the stainless steel curved plate to facilitate the assembly of the stainless steel curved plate and the stainless steel base. The snap-fit ​​on the nylon sealing plate communicates with the through hole.

[0031] In one embodiment of this utility model, the drain line is built into the cable chain 2, which physically isolates the drain line from the equipment.

[0032] Example 2

[0033] A crane is equipped with the lightning protection mechanism described in Embodiment 1. A lightning rod is mounted on the lifting platform of the crane, and lightning protection grounding wires (built into the drag chain 2) are laid on the sides of the boom and frame. The hydraulic cylinder 3 is mounted on both sides of the crane chassis via a fixed seat 1.

[0034] The solenoid valve controlling hydraulic cylinder 3 has a secondary overflow function, which can preset a safety pressure value. When the grounding electrode is pressed into the ground by the hydraulic cylinder and encounters a hard obstacle, it cannot continue to penetrate the ground. At this time, the hydraulic cylinder pressure rises sharply. When it exceeds the preset safety pressure value, the secondary overflow of the solenoid valve opens, and the pressure cannot continue to rise, thus protecting the safety of people and objects.

Claims

1. A lightning protection mechanism, characterized in that, The lightning protection mechanism comprises a lightning rod, a drainage wire, a grounding electrode, a remote controller, a controller and a hydraulic cylinder. The lightning rod is electrically connected to the grounding electrode through the drainage wire, the remote controller is in communication connection with the controller, the controller is connected to a solenoid valve of the hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected to the grounding electrode. The piston rod of the hydraulic cylinder is connected to the grounding electrode through an insulation assembly.

2. A lightning protection mechanism according to claim 1, characterised in that The insulation assembly comprises a nylon seat and a stainless steel base, upper and lower end faces of the nylon seat are respectively provided with cavities, a cylinder head flange plate of the hydraulic cylinder is inlaidly installed in the upper end face cavity of the nylon seat, the stainless steel base is inlaidly installed in the lower end face cavity of the nylon seat, and a head portion of the grounding electrode is installed on the stainless steel base.

3. A lightning protection mechanism according to claim 2, characterised in that, The insulation assembly further comprises a nylon sealing plate, the nylon sealing plate is installed on the lower end face cavity of the nylon seat and is provided with a through hole through which the grounding electrode passes.

4. A lightning protection mechanism according to claim 3, characterised in that The insulation assembly further comprises a nylon sleeve, the stainless steel base, the nylon seat and the cylinder head flange plate of the hydraulic cylinder are connected into an integrated whole through fixing screws, and the nylon sleeve is sleeved on the fixing screws.

5. A lightning protection mechanism according to claim 4, characterised in that The stainless steel base is installed with a stainless steel bending plate for fixing the drainage wire.

6. A lightning protection mechanism according to claim 4, characterised in that The drainage wire is built in a drag chain.

7. A lightning protection mechanism according to claim 6, characterised in that The lightning protection mechanism comprises a lightning rod, a drainage wire, a grounding electrode, a remote controller, a controller and a hydraulic cylinder.

8. A crane, characterized in that The lightning rod is electrically connected to the grounding electrode through the drainage wire, the remote controller is in communication connection with the controller, the controller is connected to a solenoid valve of the hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected to the grounding electrode. The piston rod of the hydraulic cylinder is connected to the grounding electrode through an insulation assembly. The insulation assembly comprises a nylon seat and a stainless steel base, upper and lower end faces of the nylon seat are respectively provided with cavities, a cylinder head flange plate of the hydraulic cylinder is inlaidly installed in the upper end face cavity of the nylon seat, the stainless steel base is inlaidly installed in the lower end face cavity of the nylon seat, and a head portion of the grounding electrode is installed on the stainless steel base. The insulation assembly further comprises a nylon sealing plate, the nylon sealing plate is installed on the lower end face cavity of the nylon seat and is provided with a through hole through which the grounding electrode passes. The insulation assembly further comprises a nylon sleeve, the stainless steel base, the nylon seat and the cylinder head flange plate of the hydraulic cylinder are connected into an integrated whole through fixing screws, and the nylon sleeve is sleeved on the fixing screws. The stainless steel base is installed with a stainless steel bending plate for fixing the drainage wire. The drainage wire is built in a drag chain. The lightning protection mechanism comprises a lightning rod, a drainage wire, a grounding electrode, a remote controller, a controller and a hydraulic cylinder. The lightning rod is electrically connected to the grounding electrode through the drainage wire, the remote controller is in communication connection with the controller, the controller is connected to a solenoid valve of the hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected to the grounding electrode. The piston rod of the hydraulic cylinder is connected to the grounding electrode through an insulation assembly. The insulation assembly comprises a nylon seat and a stainless steel base, upper and lower end faces of the nylon seat are respectively provided with cavities, a cylinder head flange plate of the hydraulic cylinder is inlaidly installed in the upper end face cavity of the nylon seat, the stainless steel base is inlaidly installed in the lower end face cavity of the nylon seat, and a head portion of the grounding electrode is installed on the stainless steel base. The insulation assembly further comprises a nylon sealing plate, the nylon sealing plate is installed on the lower end face cavity of the nylon seat and is provided with a through hole through which the grounding electrode passes. The insulation

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