CN201880232U - High-rise building fire escape device with two hanging baskets - Google Patents

Abstract

A fire escape device for high-rise buildings with double hanging baskets, including lifting mechanism parts, bracket parts, hooks, left hanging baskets and right hanging baskets. A drum with nuts, a layer of steel wire rope is wound around the drum, a fixed pulley seat is welded on the left beam of the frame, and the fixed pulley seat is composed of a pulley, an adjusting screw, a pressure plate, a slider, a guide wheel and a sleeve The wire rope locking mechanism is equipped with a movable pulley seat on the right beam of the frame. The left and right hanging baskets are hung on both ends of the wire rope, and friction blocks are installed against the flange flanges at both ends of the drum. Compared with other escape devices, this device has hanging baskets on both ends of the steel wire rope, one of which rises and the other descends, there is no empty travel, the work efficiency is high, and the precious escape time is saved. It is convenient, safe and reliable to operate, especially suitable for Hotels, shopping malls, student dormitories, office buildings and other places where people gather are organized to escape.

Description

Double hanging basket high-rise building fire escape device

technical field

The utility model belongs to the field of design and manufacture of lifting mechanisms, in particular to a structural design technology of a fire escape device for double-hanging blue high-rise buildings.

Background technique

Fire is one of the main disasters that threaten social public safety and people's life and property safety in today's world, and it is a catastrophic problem that people all over the world face together. According to the information provided by the United Nations "World Fire Statistics Center", at present, there are more than 10,000 fires every day in the world, causing millions of deaths. In recent years, about 40,000 fires have occurred in my country every year, killing more than 2,000 people and injuring 3,000-4,000 people. The direct property loss caused by fires every year reaches more than 1 billion yuan, especially the one that causes dozens of people and hundreds of people to die. Extraordinary vicious fires occur from time to time, causing huge losses to the lives and properties of the country and the people. Stern facts have proved that fire is a kind of disaster with high frequency among the disasters that occur frequently in the world today. If a fire occurs, timely rescue can be provided in a short time, and there is a convenient and safe escape device for people to escape from the fire scene quickly and safely and avoid misfortune.

In recent years, there have been some high-rise fire escape devices, such as: centrifugal friction high-rise building fire escape device, bracket damping high-rise fire escape device, high-rise fire escape self-rescue cable, building fire self-rescuer, high-altitude escape device, simple fire escape device, etc. Escape devices, etc. Although most of these escape devices are simple in structure and low in cost, escapers need to fasten safety belts and hang on the wire rope to descend. Only when it goes up can it be loaded and lowered, the work efficiency is low, and the safety is not high. It is especially not suitable for "vulnerable groups" such as the elderly, women, and children to escape and self-rescue when encountering a fire. The present invention intends to design a device suitable for escape in an organized manner in places where people such as hotels, shopping malls, student dormitories, and office buildings are concentrated.

Contents of the invention

The purpose of the design of the utility model is to provide a fire escape device for double-hanging blue high-rise buildings, especially to provide a device suitable for organizing the escape in places where people such as hotels, shopping malls, student dormitories, and office buildings are concentrated.

The technical solution of the utility model is: a fire escape device for a double-hanging blue high-rise building, including lifting mechanism parts, bracket parts, hooks, left hanging blue and right hanging blue, which is characterized in that the middle frame of the lifting mechanism parts There is a lead screw and a rotating cylinder with nuts inlaid in the center of the flanges at both ends, and a layer of steel wire rope is wound around the rotating cylinder. A fixed pulley seat is welded on the left beam of the frame. The fixed pulley seat is equipped with a pulley, an adjusting screw, and a pressing plate. , sliders, guide wheels, and sleeves to form a wire rope locking mechanism. A movable pulley seat is set on the right beam of the frame. There are left and right cranes hanging on both ends of the wire rope, facing the two ends of the drum. The flange flange is equipped with friction blocks. When installing the lifting mechanism, first screw the nuts in the center of the flanges at both ends of the drum and the lead screw, then weld them to the flanges at both ends of the drum, and then place the journals at both ends of the screw on the bearings on the frame In the seat, cover the bearing cover and tighten the screws to compress the journals at both ends of the screw so that it cannot rotate. The rotating drum is full of steel wire ropes, only one layer; one end of the steel wire rope is made with a buckle, and the latch is inserted into the buckle to lock, and the other end passes through the sleeve in the fixed pulley seat and goes around the pulley to make a buckle. Hook the hook above the hanging basket on the left into the loop. The falling speed of the hanging basket is controlled by the friction generated between the flange flanges at both ends of the drum and the friction blocks and the friction generated between the wire rope in the wire rope locking mechanism and the inner hole wall of the sleeve. First pass the supporting beam through the rectangular holes at both ends of the frame, put the two friction blocks on the supporting beam, and then respectively connect the inner connecting plate and the outer connecting plate with the inner surface and the end of the friction block with screws to make the inner connecting plate The plate, the outer connecting plate and the friction block are integrated, and the right-angled elbows at both ends of the inner connecting plate are just inserted between the flanges at both ends of the drum. When the drum rotates and moves in the axial direction, the two friction blocks move accordingly, thus It can ensure that no matter what position the drum moves to, the concave arcs on the two friction blocks are always in contact with the flange flanges at both ends of the drum; tension springs are installed at both ends of the support beam, and the tension of the tension spring can be changed by rotating the adjusting nut through the adjusting screw. Size, thereby changing the friction resistance between the two friction blocks and the flange flanges at both ends of the drum. Assuming that the minimum weight of an adult is 35 kg, the tension of the tension springs on both sides is pre-adjusted according to the minimum weight set during assembly. The friction resistance moment generated between the end flanges is greater than the minimum body weight to make the rotating drum rotate, so the rotating drum will not rotate. Only when the weight of the person in the hanging basket is more than 35 kg can the rotating drum be driven . There is a slider in the longitudinal groove of the fixed pulley seat. A rotatable guide wheel is installed at the front end of the slider. The upper surface of the slider is pressed by a pressure plate. Turn the adjusting screw clockwise to push the slider and the guide wheel forward to make The steel wire rope is bent between the two sleeves in the fixed pulley seat, and the steel wire rope is also pressed against the inner hole walls of the two sleeves and the arc surfaces of the outlet and the inlet. When the hanging basket descends or rises, there will be frictional resistance between the steel wire rope and the inner hole walls of the two sleeves. The more the steel wire rope bends, the greater the friction resistance will be; when the steel wire rope is bent close to 80 degrees, the steel wire rope is in a locked state. There is a movable pulley seat on the right beam of the frame. When a fire occurs, the escape may be on different floors above the second floor. The escape floors are different, the height of the escape device from the ground is different, and the position of the drum relative to the screw is also different. , the higher the escape floor, the fewer the remaining coils of steel wire rope on the drum, and the more forward the position of the drum relative to the screw; The position of the lead screw is farther to the rear, so when the left crane lands on the ground, the movable pulley seat needs to be moved according to the position of the rotating drum relative to the lead screw, so that the wire rope at the rear end of the rotating drum is aligned with the pulley groove in the movable pulley seat.

When a fire breaks out and all the escape routes are closed by the fire, quickly fix the bracket parts on the wall of the window sill or the wall of the balcony, and then mount the installed lifting mechanism parts with baffles on both sides and a right-angle baffle at the front On the two beams, turn the adjusting screw clockwise to push the slider and the guide wheel to move forward until the wire rope is in a locked state. The escape personnel climb over the wall and enter the hanging basket on the left from the upper cross brace to the lower cross brace. The escaped person rotates the adjusting screw counterclockwise, the steel wire rope will push the slider and the guide wheel to move backward under the action of gravity, the locking of the wire rope is released, and the left hanging basket starts to move downward, driving the drum to rotate and move forward at the same time; The drum moves forward with a pitch P every time it rotates. Since the diameter d of the selected wire rope is equal to the pitch P, the wire rope inserted into the sleeve on the fixed pulley seat is always at the same position; After the personnel leave the hanging basket on the left, first turn the adjusting screw clockwise to make the wire rope in the locked state again, then quickly pull out the latch on the rotating drum from the buckle at the head of the rear end wire rope, and wrap the wire rope twice around the back root. The relative position of the rotating drum and the lead screw, move the movable pulley seat to align the pulley groove with the wire rope, then pass the wire rope around the pulley, and hook the hook on the right hanging basket into the ring buckle. Enter the right hanging basket from the upper cross brace to the lower cross brace, and the person who has not escaped turns the adjusting screw counterclockwise. The steel wire rope will push the slider and the guide wheel to move backward under the action of gravity. The downward movement drives the drum to rotate and move backwards, and at the same time, the unloaded left crane moves upwards. At this time, the wire rope is unwound on the drum while winding in, and the number of turns of the wire rope on the drum is always the same. Since the length of the steel wire rope wound on the drum remains unchanged, when the right sling lands on the ground, the left sling just rises to the lower cross brace. Repeat the above action, the left sling goes down, the right sling goes up or the right sling goes up. Down, the left hanging basket goes up in this way until the last person escapes. Standing in the hanging basket, the person stands in the hanging basket and slowly rotates the adjusting screw counterclockwise to release the lock of the wire rope until the hanging basket starts to fall, then immediately leaves the adjusting screw and grabs Hold the wire rope until the hanger touches the ground. When the escaping person is a child or weighs less than 35 kilograms, he can enter the hanging blue escape together with others. Because only one deck of wire ropes is wound around the rotating drum, the length is about 32m, so this device is suitable for escaping from floors above the second floor and below the tenth floor. If the length of leading screw and rotating drum is increased, the wire rope wound on the rotating drum will be longer, so the floor of escape can be improved.

The pitch of the lead screw is P=5mm, the helix direction of the lead screw is left-handed, and the diameter of the steel wire rope is d=5mm.

The diameter of the inner hole of the sleeve in the fixed pulley seat is =5.5mm, the radius of the arc at the end is R=6mm.

The utility model has the advantages and positive effects: since the two ends of the steel wire rope in the escape device are respectively hung with a hanging basket, one of which rises and the other descends, there is no empty stroke, and the work efficiency is high. Compared with other escape devices, valuables are saved. The escape time; there is a pulley and a wire rope locking mechanism in the fixed pulley seat. Before the escape personnel enter the hanging basket, the wire rope is locked first. After the escape personnel enter the hanging basket, the lock is released and the descent speed can be controlled artificially. Safe and reliable; there are two horizontal braces welded on the bracket for the convenience and safety of escape personnel to enter the hanging basket, especially suitable for organized escape in hotels, shopping malls, student dormitories, office buildings and other places where people are concentrated, and also suitable for the elderly, women, Children escape.

Description of drawings

Figure 1 shows the schematic diagram of the structure of the escape device installed on the wall without the wall

Figure 2 shows a top view of the lifting mechanism components

Figure 3 shows the side view of the bracket components

Figure 4 shows the A-direction view of the escape device installed on the wall without walls

Figure 5 shows the schematic diagram of the first manned descent of the hanging blue on the left

Figure 6 shows the relative position of the rotating cylinder, the lead screw and the movable pulley seat when the crane on the left is on the ground for the first time and the wire rope is aligned

Figure 7 shows the structural schematic diagram of the hanging blue on the right when it descends and the hanging blue on the left when it rises

Figure 8 shows the schematic diagram of the structure when the wire rope is locked

Fig. 9 shows the axial sectional view of parts 1-21 in the wire rope locking mechanism

Figure 10 shows the axial sectional view of the drum and the screw mandrel

Figure 11 shows the cross-sectional view of the drum flange and the friction block in the B-B direction

Figure 12 shows a schematic diagram of the structure of the escape device installed on a wall with a wall

In the figure: 1, lifting mechanism part 2, bracket part 3, hook 4, wall body 5, left hanging blue 6, right hanging blue 1-1, adjusting screw 1-2, adjusting nut 1-3, tension spring 1- 4. Screws 1-5, bearing caps 1-6, bearing housings 1-7, friction blocks 1-8, inner connecting plates 1-9, supporting beams 1-10, outer connecting plates 1-11, frames 1-12, Movable pulley seat 1-13 pulley shaft 1-14, pulley 1-15, rotating drum 1-16, latch 1-17, adjusting screw 1-18, pressure plate 1-19, slider 1-20, guide wheel 1- 21. Sleeve 1-22, fixed pulley seat 1-23, wire rope 1-24, nut 1-25 lead screw 2-1 pin shaft I 2-2, diagonal brace 2-3, beam 2-4, pin shaft II 2-5, vertical beam 2-6, pin shaft III 2-7, pin shaft IV 2-8, intermediate beam 2-9, bolt I 2-10, movable vertical beam 2-11, bolt II 2-12 pin Axle V 2-13, upper cross brace 2-14, last brace 2-15 pin shaft VI 2-16 lower cross brace 2-17, lower brace 2-18, side baffle plate 2-19, right-angle baffle plate.

Detailed ways

When installing the lifting mechanism part 1, first screw the nut 1-24 and the lead screw 1-25 in the center of the flange at both ends of the drum 1-15, and then weld it on the flanges at both ends of the drum 1-15 , and then place the journals at both ends of the screw 1-25 in the bearing housing 1-6 on the frame 1-11, cover the bearing cover 1-5, and then tighten the screws 1-4 to compress the shafts at both ends of the screw 1-25 The neck prevents it from turning. Drum 1-15 is fully wound with steel wire rope 1-23, only one layer; one end of steel wire rope 1-23 is made with a ring buckle, insert pin 1-16 into the ring buckle to lock, and the other end passes through fixed pulley seat 1- Sleeve 1-21 in 22 walks around pulley 1-14 and then makes a ring buckle again, and the hook 3 on the left hanging blue 5 top is hooked in the ring buckle. The descending speed of the hanging basket is determined by the friction force generated between the flange flanges at both ends of the drum 1-15 and the friction block 1-7 and the wire rope 1-23 in the wire rope locking mechanism and the inner hole wall of the sleeve 1-21. The friction generated between them is controlled. First pass the support beam 1-9 through the rectangular holes at both ends of the frame 1-11, put the two friction blocks 1-7 on the support beam 1-9, and then place the inner connecting plate 1-8 and the outer connecting plate 1- 10 Use screws to connect with the sides and ends of the friction block 1-7, so that the inner connection plate 1-8, the outer connection plate 1-10 and the friction block 1-7 become a whole; the right angles at the two ends of the inner connection plate 1-8 The elbow is just inserted between the flanges at both ends of the drum 1-15. When the drum 1-15 rotates and moves in the axial direction, the two friction blocks 1-7 follow along, so that no matter where the drum moves, the The concave arcs on the two friction blocks 1-7 are always in contact with the flange flanges at both ends of the drum 1-15; the two ends of the support beam 1-9 are equipped with tension springs 1-3, and the rotating adjustment nut 1-2 passes through the adjustment screw 1 -1 can change the tension of the tension spring 1-3, thereby changing the frictional resistance between the two friction blocks 1-7 and the flange flanges at both ends of the drum 1-15. During assembly, adjust the tension of tension springs 1-3 on both sides in advance according to the minimum weight set. The friction resistance moment generated between them is greater than the minimum body weight to make the rotating drum 1-15 rotate, so the rotating drum 1-15 does not rotate, and only when the weight of the person in the hanging basket is greater than 35 kg can the rotating drum 1-15 be driven turn. A slide block 1-19 is arranged in the longitudinal groove of the fixed pulley seat 1-22, and a rotatable guide wheel 1-20 is installed at the front end of the slide block 1-19, and the upper surface of the slide block 1-19 is pushed down with a pressing plate 1-18 , rotate the adjusting screw 1-17 clockwise, push the slider 1-19 and the guide wheel 1-20 to move forward, so that the steel wire rope 1-23 occurs between the two sleeves 1-21 in the fixed pulley seat 1-22 Bending, simultaneously the wire rope 1-23 is also compressed on the inner hole walls of the two sleeves 1-21. When the hanging basket descends or rises, frictional resistance is generated between the steel wire rope 1-23 and the inner hole walls of the two sleeves 1-21, and the more curved the steel wire rope 1-23 is, the greater the frictional resistance is; when the steel wire rope 1-23 follows the guide When wheel 1-20 was bent forward nearly 80 degrees, steel wire rope 1-23 was in locked state. A movable pulley seat 1-12 is housed on the right beam of frame 1-11. When a fire occurs, escape may be on different floors above the second floor. The floors of escape are different, and the height of the escape device from the ground is different. Rotating drum 1-15 is opposite The position of the lead screw 1-25 also changes accordingly. The higher the floor, the fewer turns of the remaining steel wire rope 1-23 on the drum 1-15, and the more forward the position of the drum 1-15; the lower the escape floor, The more turns of the remaining steel wire rope 1-23 on the drum 1-15, the more rearward the drum 1-15 is relative to the lead screw 1-25, so when the left hanging blue 5 touches the ground, the root of the drum 1-15 Move the movable pulley block 1-12 relative to the position of the leading screw 1-25, so that the wire rope 1-23 at the rear end of the rotating drum 1-15 is aligned with the pulley groove in the movable pulley block 1-12.

When a fire broke out and all escape passages were closed by the fire, quickly rotate the two crossbeams 2-3 in the bracket part 2 around the pin shaft II2-4 to be perpendicular to the vertical beam 2-5, and one end of the two diagonal braces 2-2 is connected by the pin The shaft III2-6 is hinged on the vertical beam 2-5, and the other end is hinged with the two beams 2-3 by the pin shaft I2-1, and then the bracket part 2 is mounted on the wall 4 of the window sill or the wall 4 of the balcony , so that the inner side of the vertical beam 2-5 is close to the outer wall, the middle beam 2-8 spans the wall 4, the movable vertical beam 2-10 is moved close to the inner wall, and the bolt I2-9 and the bolt II2- After 11, the bracket part 2 is firmly fixed on the body of wall 4, and then the installed lifting mechanism part 1 is mounted on two beams with side baffles 2-18 and right-angle baffles 2-19 at the front end On 2-3, turn the adjustment screw 1-17 clockwise to push the slider 1-19 and the guide wheel 1-20 to move forward until the wire rope 1-23 is in a locked state. After the cross brace 2-13 to the lower cross brace 2-16 enters the hanging blue 5 on the left, the person who has not escaped turns the adjustment screw 1-17 counterclockwise, and the steel wire rope 1-23 will push the slider 1-19 and the guide rail under the action of gravity. The wheel 1-20 moves backward, the locking of the wire rope is released, and the left hanging basket starts to move downward, driving the drum 1-15 to rotate and move forward at the same time; the drum 1-15 moves forward by one pitch every time it rotates p. Since the diameter d of the selected wire rope 1-23 is equal to the pitch P of the lead screw 1-25, the wire rope 1-23 inserted into the sleeve 1-21 on the fixed pulley seat 1-22 is always at the same position; 5 When landing on the ground, after the escape personnel leave the left hanging blue 5, turn the adjusting screw 1-17 clockwise to make the wire rope 1-23 in a locked state again, and then quickly pull out the latch 1-16 on the drum 1-15, Wind the steel wire rope 1-23 for two laps, and move the movable pulley seat 1-12 to align the pulley groove with the steel wire rope 1-23 after the relative position of the rotating cylinder 1-15 and the lead screw 1-25. Go over the pulley 1-14, hook the hook 3 on the right hanging blue 6 into the ring buckle, and at this time, the escape personnel turn over the wall 4 and enter the right hanging blue 6 from the upper cross brace 2-13 to the lower cross brace 2-16 , the person who has not escaped then rotates the adjusting screw 1-17 counterclockwise, and the wire rope 1-23 will push the slider 1-19 and the guide wheel 1-20 to move backward under the action of gravity, and the lock of the wire rope 1-23 is released, and the load The hanging blue 6 on the right side of the person moves downwards, driving the rotating drum 1-15 to rotate and move backwards, and at the same time the empty hanging blue 5 on the left moves upwards. At this time, the wire rope 1-23 is released on the rotating drum 1-15. , while winding in, the number of turns of the wire rope 1-23 on the drum 1-15 is always the same, because the length of the wire rope 1-23 wound on the drum 1-15 remains unchanged, so when the manned right crane 6 touches the ground , the unloaded left hanging blue 5 just rises to the lower cross brace 2-16, repeat the above action, the left hanging blue 5 goes down, the right hanging blue 6 goes up or the right hanging blue 6 goes down, and the left hanging blue 5 goes up until When escaping to the last person, the person stands in the basket, and slowly turns the adjusting screw 1-17 counterclockwise to release the lock of the wire rope 1-23 until the hanging basket starts to descend, then immediately leaves the adjusting screw 1-17 and grabs Live the wire rope 1-23 until the hanging blue lands.

When the body of wall 4 at the place of escape has a wall edge, the vertical beam cannot be vertically close to the outer wall body, therefore, when the bracket part 2 is installed, the upper brace 2-14 and the lower brace hinged on the vertical beam 2-5 Pin 2-17 rotates 90 degrees around pin shaft V2-12 and pin shaft VI2-15 respectively, so that the heads of upper bracing pin 2-14 and lower bracing pin 2-17 can withstand the outer wall body, and the rest are the same as above.

Claims (3)

1. A fire escape device for a high-rise building with double cranes, comprising a lifting mechanism part (1), a bracket part (2), a hook (3), a crane on the left (5) and a crane on the right (6), it is characterized in that Lead screw (1-25) is housed in the middle of the frame (1-11) in the lifting mechanism parts, and the rotating cylinder (1-15) with nuts (1-24) inlaid with the center of the flanges at both ends respectively, the rotating cylinder (1-24) 15) One deck steel wire rope (1-23) is wound on, and a fixed pulley seat (1-22) is welded on the left side beam of frame (1-11), is provided with pulley (1-22) in the fixed pulley seat (1-22) -14) and adjusting screw (1-17), pressure plate (1-18), slider (1-19), guide wheel (1-20), sleeve (1-21) composed of wire rope locking mechanism, frame A movable pulley seat (1-12) is covered with on the right beam of (1-11), and the two ends of steel wire rope (1-23) are hung with hanging blue (5) on the left side and hanging blue (6) on the right side, turn to Friction blocks (1-7) are installed on flange flanges at both ends of the cylinder (1-15). 2. The double-hanging blue high-rise building fire escape device as claimed in claim 1, characterized in that the lead screw (1-25) pitch is P=5mm, the lead screw (1-25) helix direction is left-handed, and the steel wire rope (1 -23) The diameter is d=5mm. 3. double hanging blue skyscraper fire escape device as claimed in claim 1, the sleeve (1-21) endoporus diameter in the fixed pulley seat (1-22) is

The radius of the arc at the end is R=6mm.

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