Retractable lightning rod

1. Scope of use of Retractable lightning rod

The Retractable lightning rod can be used to set up lightning rods on vehicles and ships, and can also be configured with communications antennas, lighting, light transmission and cameras.Erection support for various wireless communication antennas, lighting, cameras, night vision devices, ordinary lightning rods and other equipment. It is especially suitable for the assembly and use of various instruments with strong mobility and frequent movement. Such as the erection and installation of satellite signal receiving antennas and mobile radar lightning rods.

2. Applicable environment of Retractable lightning rod

Working temperature: -45℃~+55℃ for electric type, ±55℃ for manual type. The maximum wind resistance is 30m/s (the installation base is firm and the cable is in the state of pulling), and it is suitable for use in assembly and use of various instruments that move frequently on a flat surface. Such as the erection and installation of satellite signal receiving antennas and mobile radar lightning rods. Solid ground (indoor and outdoor), interior and exterior decoration of vehicles and warehouses, installation of ships and offshore drilling platforms.

3. Technical parameters of Retractable lightning rod

4. Retractable lightning rod selection conditions

1. Determine the maximum rise, closing height, load-bearing weight, and windward area of the load-bearing object

2. Determine whether to install on the ground, outside the car or inside the car

3. Determine whether to choose vertical or horizontal electric type

4. Electric type determines the power supply used by the motor

5. Structural characteristics and working principle of Retractable lightning rod

The structure is compact and consists of lifting rod, tripod bracket, hand crank, cable system, etc. The power is transmitted by a combination of hand shaft, bevel gear, screw, screw nut and steel wire rope to achieve the purpose of lifting. It adopts a "double extension mechanism", that is, each section of the movable rod rises and falls at the same time, at a high speed, and the wire rope can be seen exposed after rising. It can be self-locked at any height and will not slide down.

6. Retractable lightning rod erection requirements

1. The lifting lightning rod must be installed on a flat and hard foundation to ensure that it does not sink or tilt after bearing the load.

2. The loading of the lifting lightning rod is not allowed to exceed the specified weight. The loading must act on the axis of the rod body. It is prohibited that asymmetric loads deviating from the axis cause the lifting lightning rod to tilt or bend.

3. The lifting lightning rod must be vertical to the horizontal plane, and the allowed inclination is no more than 0.5°.

4. When the wind speed exceeds 14m/S, there must be guy wires when erecting or lifting.

5. The closing lock hook must be removed before raising the lifting rod.

6. The fasteners that fix the load must be tightened before lifting.

7. It is strictly prohibited to knock the rod during use, installation or transportation to prevent the rod from deforming.

8. If abnormal phenomena such as inflexible lifting or jamming occur during the lifting process, the work should be stopped immediately, the cause should be identified, and the fault should be eliminated before operation.

9. Remember that the short cable of the three-layer cable box of the fixed pipe must be in the locked state during the lifting and lowering process. See Figure 1 for details of the locked state.

7. Ground erection, lifting and cable pulling of Retractable lightning rod

1. Choose a flat, hard, and open site with a square and circular shape that can meet the requirements for wire nailing, that is, the site is a circular area greater than or equal to R=12.6m.

2. Refer to Figure 2 to install the upper hinge, legs and diagonal support rod on the lifting rod and then install the latch.

3. Adjust each cable lock pin of the cable box to the unlocked state (that is, pull up the lock pin handle and rotate it 90° to make the lock pin handle boss disengage from the lock body groove.

4. Hang the long, medium and short cable hooks of the cable box on the upper, middle and lower cable holes of the lifting rod respectively.

5. Install the load on the lifting rod, tighten the fixing screw and remove the closing lock hook.

6. Stand up the lifting rod and hold it, then unfold the legs, pull out the telescopic rod lock and pull the telescopic rod outward to reach the position and lock it.

7. Place the foot support plate under the foot and rotate the adjusting bolt to fine-tune the foot so that all three legs are supported and the lifting rod is vertical.

8. Align the position of the cable hole on the top of the lifting rod, nail three ground nails to the ground with the lifting rod as the center and a radius of 12.6m, with the ground nail hanging ring facing the lifting rod.

9. Hang the cable box hooks of the three cable boxes on the three ground nail hanging rings respectively.

10. Adjust the short pull cord lock pin of the pull cord box to make it in the locked state (that is, pull up the lock pin handle and rotate it 90° so that the lock pin handle boss enters the groove of the lock body). Insert the crank handle of the pull cord box into the short pull cord crank handle of the pull cord box. In the hole, rotate the handle of the cable box clockwise, tighten the cable at three points at the same time, and fix the lifting rod in the vertical position.

11. Unscrew the hand crank shaft cover, insert the hand crank to the hand crank shaft, and evenly shake the hand crank clockwise to raise the lifting rod. During the lifting process, put down the pull wire while rising, and designate a special person to observe the vertical condition of the lift rod. Instruct the operator of the pull box to loosen or tighten the pull wire as needed to keep the lift rod rising vertically. When you see the lower part of the second section from the bottom When the red mark line is exposed or it feels unsteady, the lifting rod has been raised to the maximum height.

12. Adjust the long and middle cable lock pins of the cable box so that they are in a locked state. Insert the cable box handle into the long and middle cable crank jacks of the cable box respectively. Rotate the cable box crank clockwise and hear a clicking sound. , tighten the pull wire at three points at the same time to fix the lifting rod in the vertical position.

8. Lowering and dismantling the Retractable lightning rod

1. Turn the hand crank counterclockwise to slowly lower the lifting rod. The pull line box operator follows the pull line and follows

The observer instructed to adjust the pull wire to keep the lifting rod descending vertically until the lifting rod fell into place.

2. Hold the lifting rod, remove the cable box from the ground nail, and then retract the leg telescopic rod inward.

3. Remove the legs and diagonal support rods and lower the lifting rod.

4. Remove the load, take off the cable hook, then hang the closing lock hook and tighten the closing lock, etc.

9. Maintenance and maintenance of Retractable lightning rod

1. After the lifting rod is used in the rain, it should be dried before being lowered to the closed position.

2. When the lifting rod is closed and parked in the open air, a protective cloth cover should be worn to prevent rain and dust from entering.

3. If it is not used for a long time, raise it to dry every half a month in the rainy season; raise it to dry every one month in the non-rainy season.

4. After long-term installation of lifting poles in the wild, check the erection status of the lifting poles after strong winds or every one month. The poles should not be tilted, deformed, or allowed to relax. Any problems found should be eliminated in a timely manner.