[Firefighting Technology] SRT Technology (Single Rope Technology) Illustration

First, rising action

The essentials of climbing along the ropes: mainly using hand-held risers, chest risers raise the friction of the ropes. There are 4 steps:

The first step: push (push up raiser by hand) - hang up the handheld riser and chest riser on the master rope, after the left pedal into the ankle loop, hold the two hands up and hold the riser up along the master rope At the highest point, the knee of the left foot follows the trend and the body weight falls on the chest riser.

The second step: to sit (the hips sit on the left foot) - step into the left foot of the foot ring back, so that the hips sit on the root of the left foot.

The third step: 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬 蹬

Step 4: Sit - Use the chest riser to get the body to sit on the rope. Repeated actions increase.

Precautions:

1. Since the distance between the tail of the oxtail rope and the handheld riser is short, resulting in a short climbing distance, it is recommended to make a pull rope -- use a power rope (sailor knot) and a handheld riser and (a single knot) and safety Sling connection, can adjust the length of power rope to increase the length of climbing.

2 , in the process of climbing along the ropes should be consistent in action, step into the foot of the foot must be forced back, the other foot to grasp the balance forward.

3. Keep the body perpendicular to the main rope during the ascent.

4. As the rope rises, the feet that step into the foot ring force backwards, and the hand only acts as an auxiliary pull. If the force of the hand is greater than the force of the foot, premature physical exhaustion may result.

5. Dual protection is performed with the ascender and chest riser in the ascending process, and another protection must be added before removing a protection.

6 , the foot into the foot ring when the back of the knee must be straight, holding the handheld riser attached to his chest.

Second, falling action

Decline along the rope is mainly due to the use of a descender for descent (taking the IDS descender as an example)

The first step is to make a protection point. The hook is hooked into the safety hook of the fulcrum that has been made to protect it.

Step 2: Install IDS descender - the right way around Shengan descender installed IDS, the IDS descender of the handle into the locked position.

The third step is to lift the oxtail protection. The oxtail safety hook hooked into the fulcrum hook is released and connected to the seat belt. The body is in a descending position.

Step 4: Use the IDS descender to lower - the left hand moves the down handle of the IDS down counterclockwise to the down position, and the right hand holds the control down the rope and descends at a constant speed.

Precautions:

1. Before the descent, check whether the fulcrum is firm and reliable.

2. Install the IDS descender correctly around the rope .

3. When descending , lower the IDS descender handle to the descent position to maintain a constant speed drop.

4. When the descent, hold the descent cord with your right hand, and lower the rope to rub against the raised position of the IDS descender.

5. When using the IDS descender to descend, keep the body vertical to the wall.

Third, the macro decline

As the name suggests, the macro fall is mainly to be converted into a descending state during the ascent process to make a slight distance adjustment on the position of the rope. If the IDS descender is used to adjust, the rising state needs to be converted into a descending state, and the rising state is raised and held during the rising period. The ascenders, chest risers, IDS descenders require repeated assembly and disassembly movements (this method can only be used if the equipment is particularly familiar).

Action essentials:

The first step: affix (so that the hand-held riser and the chest riser are as close as possible) - the foot stepping on the cyclist is forced to pick up the pedestal ring, keeping the body perpendicular to the rope, so that the hand-held riser and the chest riser are as far as possible. The closeness. The body's power is fully seated on the handheld riser and cyclist, and the chest riser is in an active position.

Step 2: Semi-resolve the chest riser (the main rope should always be in the chest riser) - Hold the hand raiser on your chest with one hand, step on the foot ring and force it to squat. Keep vertical with the main rope. At this time, the other hand pulls the lock of the chest riser to make the switch of the chest riser half-closed (remember that it cannot be fully opened to release the rope from the chest riser). The main rope can be in the chest riser. Freedom to move up and down.

The third step: to sit - step into the foot of the foot continues to force hard, the body slowly sit down, buttocks sit on the heel of the foot ring. The chest riser naturally descends along the main rope.

Step 4: Chest Locker - After reaching the descent position, close the lock of the chest riser so that the weight of the chest rests on the chest riser and then adjust the position of the handheld riser.

The movement of the body is the opposite of the ascending movement.

Precautions:

1 , open the chest riser skills, with one hand's index finger from top to bottom push the chest riser lock, you can make up chest up and down activities.

2. The chest riser must not be completely opened to allow the main rope to escape from the chest riser.

Fourth, the macro rise

Use: IDS descender lowered work position than when using, for adjusting the position of the short-range increased (this method can only be used in case of special equipment and equipment familiar to lower).

Action essentials:

Step 1: Down - Install the IDS descender on the descending rope . The IDS descender connects the safety harness, pulls the IDS descender handle to the descent position, and descends along the descent rope in descending motion.

Step 2: Lock down the IDS descender - When it is found that descending along the descent rope using the IDS descender, the descent position exceeds the working position, the IDS descender handle is pulled to the locking position, and the IDS descender is locked.

Step 3: Install the handheld riser - Install the handheld riser above the IDS descender. Push the handheld riser to the highest point where the arm can reach, and step into the foot ring that connects the handheld riser.

Step four: pedaling cadence - with a foot firmly into the cadence of backward pedaling cadence, knees straight, one hand clenched hand rising, a rise in the handheld device affixed to his chest, the body Keep vertical with the descent rope. At this point, the body weight falls on the handheld riser, and the IDS descender is in a relaxed state, free from force.

Step 5: Tighten the IDS descender - the body is perpendicular to the descent rope. After the body weight falls on the handheld riser, the other hand will pull the IDS descender handle to the descent position, tightening the descent rope below the IDS descender. , Make the IDS descender as close as possible to the handheld riser, and finally lock down the IDS descender. The body sits in a sitting position on the rope. At this time, the IDS descender is under pressure and the body weight falls on the IDS descender.

Step 6: Repeat Actions - Repeat the above actions until you reach the home position.

Precautions:

1. Before installing the handheld riser, be sure to lock the IDS down.

2 , with your feet to the back of the pedal ring, one hand must hold the riser, hold the hand-held riser attached to the chest, in order to ensure that the body and the drop rope vertical.

3 , the macro rise can only be used when the short distance rises or the short distance adjustment position.

4 , at any time during operation to check whether the safety hook is locked.

Section II rising to fall technology

Action essentials:

Step 1: Close to (close to the handheld riser and chest riser) - Keep the handheld riser and chest riser as close as possible to a distance of 5 cm (two fingers).

Step Two: Take descender hanging IDS (IDS linked with Shelter take descender) - unlock long hanging himself Shelter hook hooked catch hook with a long Shelter IDS descender, and remove the hanging down device IDS In the safety belt chest lock. Finally remove the oxtail hook that hangs inside the IDS lock. ( Connect IDS descender with oxtail to prevent falling down from high altitude operation IDS descender )

Step 3: Install Tighten the IDS Decrease (shorten the distance between the IDS and the chest riser) - Install the IDS descender below the chest riser . Then tighten the rope below the descender IDS, IDS let fall and chest as much as possible close to the risers.

Step 4: Lift the chest riser - use the foot into the foot ring to force the pedal backwards. Hold the hand on the chest and keep the body upright. Keep the body weight Located on the handheld riser, the chest riser is free to move up and down. Use the other hand to open the chest riser lock and allow the main rope to clear the chest riser. Then slowly sit down and let the body weight sit on the IDS descender.

Step 5: Drop - Remove the handheld riser and lower the IDS descender handle down position

Precautions:

1. Properly grasp the close distance between the handheld riser and the chest riser, the IDS descender, and the chest riser. Too far will cause the hand to reach the handheld riser and cannot release the equipment.

2 , strictly abide by the operating procedures and procedures.

3. After tightening the IDS descender down to the rope, the body is seated on the IDS descender and the IDS descender is stressed. The handheld riser is in an unstressed, relaxed state. If you cannot reach the hand-held riser with your hand, you can hold the pull cord that connects the hand-held ascent device with your hand and shake it from side to side rapidly until the hand-held riser shakes until the hand can reach the position.

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.