High-altitude job rescue needs technology

Full set of PPE equipment (work full body harness, helmet, ascender, chest riser, descender, oxtail, shunt)

Climbing along the rope

When operating at high altitude, two ropes are required, one for the main rope and the other for the shunt. Push the riser up twice and pull shunt once, pulling the shunt height parallel to the head each time.

Descent technique (including macro drop)

Firstly, put the shunt into the secondary protection rope. When the main rope is loaded into the descender, pull the shunt's rope tail while pressing the handle of the descender with the left hand, and pull the main rope to the right and pull it down.

Macro drop

When it needs a short distance to descend during the ascending process, first press the gear of the hand-type ascender to relax and pull down to the top of the chest-type ascender, and the handle-type ascender will step at the same time as the ankle to stand and pull the chest-type ascending gear half-open and pull down. After a proper distance, lock it back and pull the shunt to keep it level with the body. Repeat the above action to the ideal descent distance.

Rope transfer (falling/rising)

Explanation: The meaning of rope transfer is that when the rope is erected, multiple ropes have been erected. When the personnel stops at high altitude (in the up/down state), the staff does not need to rise to the top when they want to change the position. under? ? Go to the ground? ? position? ? Moving, the staff only needs to use the rope transfer technology to transform the required position on the rope, which is a great improvement in work efficiency.

Rise/fall conversion technology

When it is necessary to descend during the ascent, the descender is first locked under the chest riser, the gear of the hand type riser is pulled down and pulled down to the top of the chest type riser, and the handle type riser simultaneously steps on the ankle to stand up ,Unlock the chest riser and sit down. At this time, the weight in the body shifts to the descender. Release the hand-type ascent device. Pull the shunt and keep the body level and start to descend.

Fall/Rise Conversion Technology

When there is a need to rise during descent, first lock down the descender, pull the shunt and keep the head level, install the hand-type riser on the main rope above the descender, open the chest riser, and pull the handle up at the same time step on the pedal. When standing up, place the chest riser into the main rope section between the descender and the hand riser. At this time, the weight of the body shifts to the chest riser, and the lowering device starts to rise.

Horizontal/Diagonal Progressing

Description: Operational rope technology often has technical problems that vertical ropes are difficult to solve, such as the need to stop between the two fixed points, but it is suitable for direct access. At this time, erecting or tilting the ropes will help resolve technical problems. The technical training of personnel in non-perpendicular ropes is one of the necessary techniques for rope technology operators.

Tilting technology

When tilting up, the main point of attention is that when the angle is above 45 degrees, the conventional lifting technique can be used. The angle is within 45 degrees. The handle of the hand riser is connected with the master rope with the master lock, keeping the hand riser horizontal with the master rope. The shunt replaces the chest riser (semi-locking pulleys, pulleys, and main locks can all rise) along the main rope.

Horizontal marching technology

Horizontal travel here refers to the horizontal movement of multiple high altitude parallel protection points.

1, 2 two points after the protection of the oxtail rope into the second point, this time is two points to protect the three protection ropes. Then release the second point protection and move to the third point. At this time, protect the three protection ropes at 1, 2, 3 three points, then move the first point protection to the second point, and then move the oxtail rope to the third protection point. Then move the third point protection to the fourth protection point and repeat the above actions to complete the horizontal movement.

KNOT Knot Presentation and Exercise: Double Overhand, Double Figure-Eight/DF8 Alpine Butterfly/AB, Double Rope Bunny Knot, etc. (Drop/Rising )

Explanation: A rope may be knotted at any point of the rope due to several conditions, such as obvious damage to the outer sheath of the rope. When the bridge is used to avoid the Alpine Butterfly Knot and the length of the rope is insufficient, the rope must be used. If the rope is not in front of the rope, use it, etc.; Because of the rope? ? The state of the knot may be a known or unknown state, so it is necessary to explain how to pass the knot (falling/rising)

When the knot falls (falling/rising) down to the knot or guard point, install another shunt on the secondary guard rope, and then place the hand riser on the master rope above the descender to open the chest. The ascender, the handle type ascender and the pedal ascend to stand at the same time, and the chest type riser is loaded into the main rope part between the descender and the hand type ascent device. At this time, the body weight is converted to the chest type riser and the descender is unlocked. Install the main rope under the knot into the descender lock. The handle-type riser simultaneously stands on the ankle and stands up. The chest riser is released to sit down. At this time, the weight in the body is switched to the descender, the hand-type riser and the knot above the knot are released, and the shunt is pulled to keep the body level and begin to descend. . When it rises to the knot or protection point, first pull the shunt and keep the head level, install the other Shunt into the sub-protection rope above the knot, and then lock the descender under the chest riser to lock. The riser opens on the main rope above the knot, and the handle-type riser simultaneously steps on the ankle to stand up, and the chest type riser is opened to install the rope knot and the main rope portion in the middle of the hand-type ascent device. The body weight then Switch to the chest riser, untie the dropper and the shunt below the knot starts to rise.

When the rope is being transferred (during/descending) down: The descender is locked first, the other Shunt is loaded into another set of ropes, and the hand-type riser is placed on the main rope of the other set. The riser opens into the main rope and slowly relaxes the descender. At this time, the body weight will slowly shift to the chest riser. When the body weight is completely on the other set of ropes, the downer and the shunt are unlocked. The main rope under the descender is locked in the descender. The handle-type ascent device simultaneously stands on the pedals and stands up. The chest-type ascending device is unlocked. Then, the weight in the body is shifted to the descender, the hand-type ascender is released, and the shunt is pulled to maintain the level and the body begins to descend.

Rising: Put another Shunt into another set of ropes, and then put the master rope under the chest-type descender into the descender lock, and open the hand-type riser on the main rope of another set. The riser opens into the main rope and slowly relaxes the descender. At this time, the body weight will slowly shift to the chest riser. When the weight of the body is completely on the other set of ropes, the descender and shunt are unlocked and continue to rise.

Explanation: How to set up vertical ropes in the workplace and environment? How to determine what is a safe protection point? The safe rope-laying method will enable top-level workers to obtain the top priority for safety, which is also the basis for working at height.

More related technologies require the accumulation of experience, using rope technology to reach any angle of work and rescue.