CN105688342B

CN105688342B - Rope speed reduction and recovery structure of high-rise circulating escape device

Info

Publication number: CN105688342B
Application number: CN201610232123.7A
Authority: CN
Inventors: 黄海松; 姚立国; 张喜根
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2016-04-14
Filing date: 2016-04-14
Publication date: 2020-12-11
Anticipated expiration: 2036-04-14
Also published as: CN105688342A

Abstract

The invention discloses a rope speed reducing and recovering structure of a high-rise circulating escape device, which comprises a circulating escape device, wherein a rope rotating shaft is fixed in the circulating escape device, a plane volute spring is fixed on the rope rotating shaft, a rope for escaping is fixed at the working end of the plane volute spring, a rope guide port is formed in the bottom of the circulating escape device, the rope is led out from the rope guide port, spring type or hydraulic type supporting rods are symmetrically arranged on two sides of the guide port, the tail parts of the spring type supporting rods are respectively hinged to two sides of the guide port, rubber pads are arranged at the end parts of the spring type supporting rods, the end parts of the spring type supporting rods are tightly attached to the side walls of the rubber pads, the rubber pads are sleeved on the rope, and round knots are arranged at intervals at the tail parts of.

Description

Rope speed reduction and recovery structure of high-rise circulating escape device

Technical Field

The invention relates to the technical field of high-rise escape equipment, in particular to a rope speed reducing and recovering structure of a high-rise circulating escape device.

Background

In the present that the safety consciousness is more and more intense and the floors are higher, the high-rise escape problem becomes a problem which is not easy to solve but can not be ignored, 17 minutes are allowed at 11 months, 5 days and 9 days in 2010, 9 days and 17 minutes are allowed, business buildings in ship operation areas in Jilin cities and Jilin provinces are in fire, 19 people die, 24 people are injured for hospitalization, the shopping mall is known to have five layers, the building area is about 42000 square meters, one layer of business home appliances, cosmetics, two layers and three layers of business clothes, four layers of business bedding articles, five layers of business bags and bags are locally used as children' paradises, the fire-starting part is positioned at one layer, all the first layer to the fourth layer of fire, five layers of local fire are over, the number of high-rise buildings is large, the evacuation distance of people is long, the consumed time is correspondingly prolonged, the people are concentrated, the evacuation difficulty is large, and the serious casual; in addition, most cities with high-rise buildings do not have a high-rise fire truck, even if the cities have the high-rise buildings, the height is not enough, the requirements of safe evacuation cannot be met, the climbing difficulty is high, if no special fire elevator or the fire elevator fails, firefighters can only climb upstairs from stairs in a hiking way to rescue, the firefighters can not collide with people evacuated downwards, the rescue efficiency is influenced, the rescue is limited by receptor force factors, after climbing a certain height in a hiking way, the heart rate and respiration are accelerated, the physical strength is reduced, fire extinguishing and rescue activities are not facilitated to be carried out, the existing high-rise escape device can be used only once, the rescue interval time is long, the rescue efficiency is too low, and the life safety of the personnel cannot be effectively guaranteed for the high-rise people.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a rope speed reducing and recovering structure of a high-rise circulating escape device with simple structure and strong practicability, so as to overcome the defects of the prior art.

The invention is realized by the following steps:

a rope speed reducing and recovering structure of a high-rise circulating escape device comprises a circulating escape device, a rope rotating shaft is fixed in the circulating escape device, a plane volute spring is fixed on the rope rotating shaft, a rope for escaping is fixed at the working end of the plane volute spring, a rope guide port is arranged at the bottom of the circulating escape device, the rope is led out from the rope guide port, spring type supporting rods are symmetrically arranged on two sides of the guide port, the tail parts of the spring type supporting rods are respectively hinged on two sides of the guide port, a rubber pad is arranged at the end part of each spring type supporting rod, the end part of each spring type supporting rod is tightly attached to the side wall of the rubber pad, the rubber pads are sleeved on the rope, round knots are arranged at intervals at the tail part of the rope, when an escaper descends to the ground through the rope, the round knots are in contact with the rubber pads to generate friction, and move in sequence in the rubber pads, the kinetic energy (and, and the spring type supporting rod can also contract to partially convert the kinetic energy of the personnel into the potential energy of the spring type supporting rod, when the spring type supporting rod rotates, because the spring type supporting rod is hinged, the spring type supporting rod can rotate, the maximum rotation angle of the spring type supporting rod can not ensure that the spring type supporting rod is vertical to the rope, when the spring type supporting rod rotates, the end part of the spring type supporting rod compresses the rubber pad, so that the clearance size of the rubber pad is reduced, and the friction force between the rubber pad and the next round knot is increased in the contact process, thereby completing the speed reduction of the rope of the circulating escape device, and the spiral spring is not like a common spring and can only transversely compress and extend, which has the property of being stretchable in the radial direction, the spiral spring being connected to the spool at one end and fastened and to the cord at the other end. When the escaper is in use, the gravity of the escaper is greater than the elastic force of the spiral spring, so that the escaper can descend smoothly and escape; when the escaper safely reaches the ground and loosens the safety rope, the spiral spring recovers due to the disappearance of the stress, so that the safety rope can be quickly rebounded to prepare for the safe escape of the next escaper.

Among the aforementioned rope speed reduction and the recovery structure of ware are fleed in high building circulation, set up thick compression spring below the rope direction opening, it is connected the fixed of realizing thick compression spring to flee the ware through the connecting rod in thick compression spring both sides with the circulation, the rope penetrates in the thick compression spring and sets up the cardboard in thick compression spring bottom, through setting up thick compression spring, take place the buffering when the rope return, effectively avoid the rope to go into the circulation ware of fleing because of too big direct card of speed at the return in-process.

Among the aforementioned rope speed reduction and the recovery structure of high building circulation ware of fleing, set up the handle at the tail end of rope, through setting up the handle, not only make things convenient for the personnel of fleing to hold the rope, and this handle and the cardboard cooperation on the thick compression spring for the rope can return to initial settlement position after the return.

By adopting the technical scheme, compared with the prior art, the rope speed-reducing device has the advantages that sliding friction is generated through the circular combined rubber pad, so that the kinetic energy of the rope is reduced, meanwhile, the spring type supporting rod is arranged, part of the kinetic energy of the rope can be converted into potential energy of the spring type supporting rod to be stored, so that the speed reduction of the rope is effectively completed, and the volute spiral spring is arranged at the tail end of the rope, so that the rope can be quickly returned by the potential energy stored by the volute spiral spring after escaping, and the escape time is greatly saved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of a-a of fig. 1.

Detailed Description

The embodiment of the invention comprises the following steps: the utility model provides a rope speed reduction and recovery structure of ware is fleed in high building circulation, includes circulation ware 3 of fleing, its characterized in that: a rope rotating shaft 11 is fixed in a circulating escape device 3, a plane volute spring 12 is fixed on the rope rotating shaft 11, a rope 1 for escaping is fixed at the working end of the plane volute spring 12, a rope guide port 2 is arranged at the bottom of the circulating escape device 3, the rope 1 is led out from the rope guide port 2, spring type supporting rods 4 are symmetrically arranged at two sides of the guide port 2, the tail parts of the spring type supporting rods 4 are respectively hinged at two sides of the guide port 2, a rubber pad 5 is arranged at the end part of the spring type supporting rod 4, the end part of the spring type supporting rod 4 is tightly attached to the side wall of the rubber pad 5, the rubber pad 5 is sleeved on the rope 1, round knots 6 are arranged at intervals at the tail part of the rope 1, when an escaping person descends to the ground through the rope, the round knots are in contact with the rubber pad to generate friction, and the round knots sequentially move in the rubber pad, so as to reduce, and the spring type supporting rod can also contract to partially convert the kinetic energy of the personnel into the potential energy of the spring type supporting rod, when the spring type supporting rod rotates, because the spring type supporting rod is hinged, the spring type supporting rod can rotate, the maximum rotation angle of the spring type supporting rod can not ensure that the spring type supporting rod is vertical to the rope, when the spring type supporting rod rotates, the end part of the spring type supporting rod compresses the rubber pad, so that the clearance size of the rubber pad is reduced, and the friction force between the rubber pad and the next round knot is increased in the contact process, thereby completing the speed reduction of the rope of the circulating escape device, and the spiral spring is not like a common spring and can only transversely compress and extend, which has the property of being stretchable in the radial direction, the spiral spring being connected to the spool at one end and fastened and to the cord at the other end. When the escaper is in use, the gravity of the escaper is greater than the elastic force of the spiral spring, so that the escaper can descend smoothly and escape; when the escaper safely reaches the ground and loosens the safety rope, the spiral spring recovers due to the disappearance of the stress, so that the safety rope can be quickly rebounded to prepare for the safe escape of the next escaper.

Wherein set up thick compression spring 7 in 2 below at rope direction opening, escape 3 through connecting rod 8 and circulation in 7 both sides of thick compression spring and be connected the fixed of realizing thick compression spring 7, rope 1 penetrates in thick compression spring 7 and sets up cardboard 9 in thick compression spring 7 bottom, through setting up thick compression spring, take place the buffering when the rope return, effectively avoid the rope to go into the circulation escape device because of too big direct card of speed in the return in-process, tail end at the rope sets up handle 10, through setting up the handle, not only make things convenient for the personnel of fleing to hold the rope, and the cardboard cooperation on this handle and the thick compression spring, make the rope can return to initial settlement position after the return.

In specific use

Spring tension is 369.2N in the spring bracing piece of this embodiment, and decelerator mainly comprises round knot, spring bracing piece and thick compression spring, and two thin spring formula bracing pieces all are 60 jiaos with the safety rope, and the one end of thin spring and safety rope contact is equipped with the rubber pad (increase coefficient of friction effect), and the rubber pad end of two thin springs is on same water flat line, and 2 springs become bilateral symmetry and distribute.

The working principle is as follows:

the design demand is slowed down before falling to the ground 6m, so the rope at last 6m is equipped with circular knot every half a meter, and the diameter of circular knot is slightly greater than the distance of two thin spring rubber pad ends, and circular knot diameter is 0.8cm, and the distance of two thin spring rubber pad ends is 0.5 cm. When the escape person uses the device to escape and is 6m away from the ground, the round knot is contacted with the rubber pad ends of the two thin springs to generate friction (loss of the potential energy of the rope part), and simultaneously the spring type support rod is contracted to convert the kinetic energy into elastic potential energy to achieve the purpose of reducing the speed of the safety rope, so that the escape person can not damage the ground due to too high speed, the knot can relatively easily penetrate through the gap between the two thin springs due to the shape of the knot and the angle relationship of the two thin springs, not only can the length of the safety rope be completely utilized, but also has the speed reducing effect, because of the angle relationship of the two thin springs, two points at the end of the rubber pad generate larger extrusion force, the friction is further increased, the safety rope starts to reduce the speed and reaches the ground at the speed of about 1m/s, when the first escape person safely reaches the ground, the handle is loosened, and the safety rope is not subjected to the gravity of the, the handle is controlled by the circulating escape device, so that the safety rope starts to return, when the handle reaches the initial position, the speed of the handle can approach 0m/s in a very short time due to the action of the buffer device (namely, the coarse compression spring, the clamping plate and the handle), and then a subsequent person to be escaped can repeat the action of the previous escaper to escape.

The wrap spring has a characteristic of being stretchable in a radial direction, unlike a general spring which is compressible and extensible only in a transverse direction. One end of the spiral spring is connected with the spool and is fastened, and the other end is connected with the wire rope. When the escaper is in use, the gravity of the escaper is greater than the elastic force of the spiral spring, so that the escaper can descend smoothly and escape; when the escaper safely reaches the ground and loosens the safety rope, the spiral spring recovers due to the disappearance of the stress, so that the safety rope can be quickly rebounded to prepare for the safe escape of the next escaper.

The above-described arrangements are described to facilitate understanding and use of the invention by those of ordinary skill in the art. Various modifications to the embodiments will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications to the method according to the present invention without departing from the scope of the present invention.

Claims

1. The utility model provides a rope speed reduction and recovery structure of ware is fleed in high building circulation, includes circulation ware (3) of fleing, its characterized in that: a rope rotating shaft (11) is fixed in a circulating escape device (3), a plane volute spring (12) is fixed on the rope rotating shaft (11), a rope (1) for escape is fixed at the working end of the plane volute spring (12), a rope guide opening (2) is formed in the bottom of the circulating escape device (3), the rope (1) is led out from the rope guide opening (2), spring type supporting rods (4) are symmetrically arranged on two sides of the guide opening (2), the tail portions of the spring type supporting rods (4) are respectively hinged to two sides of the guide opening (2), a rubber pad (5) is arranged at the end portion of each spring type supporting rod (4), the end portion of each spring type supporting rod (4) is tightly attached to the side wall of the rubber pad (5), the rubber pad (5) is sleeved on the rope (4), and round knots (6) are arranged at the tail portions of the rope (4;

when the escape personnel descends to the ground through the rope (1), the round knot (6) is contacted with the rubber pad (5) to generate friction, the round knot (6) moves in the rubber pad (5) in sequence, the kinetic energy of the escape personnel and the falling speed of the escape personnel are reduced in the process through a friction mode, the spring type supporting rod (4) can also shrink and partially convert the kinetic energy of the personnel into the potential energy of the spring type supporting rod (4), the spring type supporting rod (4) can rotate due to the fact that the spring type supporting rod (4) is hinged, the maximum rotating angle of the spring type supporting rod (4) cannot enable the spring type supporting rod to be perpendicular to the rope (1), when the spring type supporting rod (4) rotates, the end part of the spring type supporting rod (4) can compress the rubber pad (5), and the clearance size of the rubber pad (5) is reduced, thereby increasing the friction force with each other during the contact with the next round knot (6), thereby accomplishing the deceleration of the rope (1) of the circulating escape device.

2. The rope decelerating and recovering structure of the high-rise circulating escape device as claimed in claim 1, wherein: set up thick compression spring (7) below rope direction mouth (2), be connected the fixed of realization thick compression spring (7) through connecting rod (8) and circulation ware of fleing (3) in thick compression spring (7) both sides, rope (1) penetrate in thick compression spring (7) and set up cardboard (9) in thick compression spring (7) bottom.

3. The rope decelerating and recovering structure of the high-rise circulating escape device as claimed in claim 1, wherein: the tail end of the rope is provided with a handle (10).