High-rise escape track and escape device

Abstract

The invention relates to a high-rise escape device, in particular to a high-rise escape track and an escape device for continuous escape of multiple persons. The escape track comprises a track body and a support, the support is of a trapezoidal structure, and a transverse bend is arranged on the track body. The escape device comprises a bottom plate, a rail clamping mechanism, a speed limiting mechanism, a brake handle, a holding handle, a gear box and a safety belt hanging arm are arranged on the bottom plate, and a constant speed mechanism and a brake mechanism are arranged in the gear box. The escape track is vertically installed on an outer wall of a building, the lower end of the escape track extends to the ground, when the escape device is used, the escape device is clamped on the escape track, a safety belt hook is hung on a safety belt hanging arm of the escape device, the escape device can safely descend to the ground along the track, and one track can be used for all floors. The high-rise escape track and the escape device are simple in structure, convenient to use and low in manufacturing cost, and can help people in a high-rise building to quickly escape from a dangerous situation when a fire or an accident occurs in the high-rise building.

Description

Technical Field

[0001] The invention relates to a high-rise building escape device, in particular to a high-rise building escape track and an escape device for multiple people to escape continuously when a fire occurs in a high-rise building. Background Art

[0002] With the rapid development of social economy, there are more and more high-rise buildings in cities. Nowadays, high-rise buildings are not only used for office and residence, but also for schools, hospitals, shopping malls, hotels and other public places. Due to the large size, complex facilities and dense population of high-rise buildings, it is difficult to extinguish and evacuate in time once a fire occurs, which will cause a large number of casualties. Today, high-rise fires have become a major disaster threatening public safety.

[0003] The reason why high-rise fires are so harmful is that they have three major safety risks: First, the fire spreads quickly. There are vertical shafts in the building, such as elevator shafts, ventilation shafts, pipe shafts, cable shafts, etc. The chimney effect they form not only accelerates the spread of the fire, but also transports toxic smoke to each floor, instantly filling the corridors and stairwells, cutting off the safe passage in the building; second, evacuation is not smooth. Fires are often accompanied by power outages, and electric equipment cannot be used. People on high floors are far away from the ground, and there are many stairs. Under the invasion of toxic gas and smoke, it is difficult to escape by walking; third, rescue is difficult. The lifting height of fire-fighting equipment is limited, and people on high floors cannot be rescued from the outside. These people are in danger and have no means of escape. Due to the above reasons, high-rise fires will besiege a large number of people in the room, with no way to escape and no way to seek help, and they can only sit and wait for death. Fire is ruthless, life is priceless! In order to protect the lives of people in the building, it is an inevitable trend of urban development to equip high-rise buildings with escape devices so that trapped people can escape through windows by themselves.

[0004] At present, there are many types of high-rise escape devices developed at home and abroad. For example, escape parachutes, inflatable life-saving mats, high-rise life-saving ladders, multi-person escape boxes, chain escape devices, escape bags, escape backpacks, reciprocating escape descenders, etc. Although these escape devices have the function of slowly descending from a high place to the ground, they all have some defects in terms of usability, which are mainly manifested in the following aspects: (1) The operation is cumbersome and people without professional training cannot use them; (2) They cannot meet the special needs of the elderly and children, and the user group is limited; (3) They can only be used by one person and cannot be used by multiple people to escape; (4) The descent speed cannot be controlled and cannot cope with emergencies during descent; (5) The landing location is uncertain and the escapees cannot avoid obstacles and dangerous areas on the ground; (6) The structure is complex and the cost is high, which ordinary citizens cannot afford. It can be seen that the existing high-rise escape devices are difficult to be widely popularized due to the above problems, so the application rate in high-rise buildings is extremely low. This field is still a global problem that needs to be solved urgently.

[0005] Patent CN202023168729X discloses a high-rise escape track and escape device. This escape device realizes the escape function by combining the escape device with the escape track, wherein the escape track is composed of a track body and a bracket, and a rack is installed on the side of the track body. The escape track is vertically installed on the outer wall of the building, and its lower end extends to the ground. The escape device includes a shell, a track clamping mechanism is provided in front of the shell, a brake mechanism is provided on the upper part of the shell, gripping handles are provided on both sides of the shell, and a safety belt hanging ear is provided at the back of the shell. A speed limiting gear is installed on the side of the shell, and the escape device is clamped on the escape track by the track clamping mechanism and the speed limiting gear. This escape device allows each floor to share a track, so it can be used by multiple people at the same time. However, this escape device has the following defects: (1) The track of the escape track is perpendicular to the wall, and the escapee has to rotate his body 90° when entering the track, which makes it difficult to use; (2) The track clamping mechanism of the escape device is fixed with a positioning lock, which is cumbersome to operate and has poor safety performance; (3) The transmission gear and gear shaft of the escape device's constant speed mechanism are key-connected, which is difficult to process and assemble; (4) The speed limiter of the escape device's constant speed mechanism is a centrifugal friction plate structure with a short service life; (5) The brake handle of the escape device is located at a high position, which is inconvenient to operate. Summary of the invention

[0006] In order to solve the problems existing in the prior art, the present invention provides an improved high-rise escape track and a high-rise escape device with a completely new structure, which not only improves the safety and durability of the device but also facilitates processing and use.

[0007] The technical solution of the present invention is as follows: A high-rise escape track and an escape device, the escape track comprises a track body and a bracket, a rack is arranged on the side of the track body, the bracket of the escape track is a trapezoidal structure, and a transverse bend is arranged on the bracket body; the escape device comprises a base plate, a track clamping mechanism is arranged in front of the base plate, a speed limiting mechanism is arranged on the left side of the base plate, a gear box is arranged on the right side of the base plate, a constant speed mechanism and a brake mechanism are arranged in the gear box, a brake handle is arranged at the back of the base plate, a pair of holding handles are arranged below the brake handle, and a safety belt hanging arm is arranged in the middle of the holding handle; the escape track is vertically installed on the outer wall of the building, and its lower end extends to the ground, the escape device is clamped on the escape track by the track clamping mechanism and the speed limiting mechanism, and the gear of the speed limiting mechanism is meshed with the rack of the escape track.

[0008] The cross section of the escape track bracket is "H" shaped, and the transverse bending angle of the bracket is 100°-170°.

[0009] The speed limiting mechanism of the escape device comprises a gear cover, a gear shaft and a transmission wheel. The shaft end of the gear shaft is installed in the gear box through a bearing and is rotationally connected with the constant speed mechanism through the transmission wheel.

[0010] The constant speed mechanism of the escape device is composed of an escape wheel, an escape fork and a plurality of double gears. The large gear of the double gear is meshed with the small gear of another double gear to transmit power to the escape wheel step by step. The escape wheel controls the rotation speed by meshing with the escape fork, and a constant speed throw block is installed behind the escape fork.

[0011] The brake mechanism of the escape device includes a brake frame, a brake caliper and a brake pad, wherein the brake pad is fixedly mounted on the inner circle of the brake caliper. There are two brake calipers, one end of which is mounted on the brake bracket through a rotating shaft, and the other end is connected to the brake handle through a brake cable or a pull rod.

[0012] The rail clamping mechanism of the escape device includes a rail clamping arm, a rail clamping wheel and a rail clamping rod. There are two rail clamping wheels, which are respectively installed at the two ends of the rail clamping arm through wheel axles. The rail clamping arm is installed in the middle of the base plate and the gear box, and is slidably connected to the base plate and the gear box. A rail clamping spring is installed on the side of the rail clamping arm, and the back of the rail clamping arm is fixedly connected to the rail clamping rod.

[0013] The lower end of the safety belt hanging arm of the escape device is rotatably connected to the bottom plate, and a locking piece is provided on the side of the lower end for locking the rail clamping mechanism. The upper end of the safety belt hanging arm is provided with a round hole for hanging the safety belt.

[0014] Compared with the existing high-rise escape devices, the high-rise escape track and escape device of the present invention have the following advantages.

[0015] 1. The escape track bracket is provided with a transverse bend, so that the angle between the side of the track and the wall is less than 90º. The escapee can easily hang on the track by turning slightly from the window. It can be used by people without guidance and training, and can also be used by the elderly, children and disabled people, with a wide range of applications.

[0016] 2. The track clamping mechanism of the escape device is simple and easy to use. Just clamp the track clamping wheel onto the escape track and pull it gently to make the escape device and the escape track tightly combined. After pulling down the safety belt hanging arm, the track clamping mechanism can be firmly locked. It is easy to operate and runs safely and reliably.

[0017] 3. The constant speed mechanism of the escape device can automatically control the descent speed, and no operation is required during the descent. The brake mechanism of the escape device can slow down or pause during the descent, which can not only avoid collisions between people on the same track, but also allow the escapee to avoid obstacles and prevent accidental injuries.

[0018] 4. The escape device is a purely mechanical component with a simple structure, easy to process and assemble, and can guarantee its performance after long-term storage. It is suitable for various occasions such as factories, schools, offices, homes, hotels, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the combination of the escape track and the escape device; Figure 2 It is the main view of the escape track; Figure 3 yes Figure 2 Left view of Figure 4 yes Figure 2 AA section view; Figure 5 This is the main view of the escape device; Figure 6 yes Figure 5 Left view of Figure 7 yes Figure 5 Right view of; Figure 8 yes Figure 7 BB cross-sectional view; Fig. 9 It is a structural diagram of the brake mechanism of the escape device; Fig.10 It is a structural diagram of the escape device rail clamping mechanism. DETAILED DESCRIPTION

[0020] The high-rise escape track and the escape device of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The high-rise escape track of the present invention comprises a bracket 1 and a track body 2, and a rack 3 is installed on the side of the track body 2; the bracket 1 is a trapezoidal structure, and its cross section is "H"-shaped; a transverse bend β is provided on the bracket body, and its bending angle is between 100º-170º.

[0022] See also Figure 5 , Figure 6 , Figure 7 The high-rise escape device of the present invention comprises a base plate 6, a track clamping mechanism 7 is installed in front of the base plate 6, a speed limiting mechanism 8 is installed on the left side of the base plate 6, a gear box 9 is installed on the right side of the base plate 6, a brake handle 10 is installed behind the base plate 6, a pair of holding handles 11 are installed below the brake handle 10, and a safety belt hanging arm 5 is installed in the middle of the holding handle 11.

[0023] See also Figure 8 The speed limiting mechanism of the escape device includes a gear cover 12, a gear shaft 13 and a transmission wheel 14. The shaft end of the gear shaft 13 is installed in the gear box 9 through a bearing and is rotationally connected to the constant speed mechanism through the transmission wheel 14.

[0024] See also Figure 8 , Fig. 9The constant speed mechanism of the escape device is arranged in the gear box 9, and the constant speed mechanism is composed of an escape wheel 15, an escape fork 16 and a plurality of double gears 17. The large gear of the double gear 17 is meshed with the small gear of another double gear, and the power is transmitted to the escape wheel 15 step by step. The escape wheel 15 controls the speed by meshing with the escape fork 16, and a constant speed throw block 18 is installed behind the escape fork 16.

[0025] See also Figure 8 , Fig. 9 The brake mechanism of the escape device is also arranged in the gear box 9. The brake mechanism is composed of a brake frame 19, a brake caliper 21 and a brake pad 22. The brake pad 22 is fixedly mounted on the inner circle of the brake caliper 21. There are two brake calipers 21, one end of which is mounted on the brake frame 19 through a rotating shaft 20, and the other end is connected to the brake handle 10 through a brake cable 23 or a pull rod.

[0026] See also Fig.10 The track clamping mechanism of the escape device includes a track clamping wheel 23, a track clamping arm 25 and a track clamping rod 26. There are two track clamping wheels 23, which are respectively installed at the two ends of the track clamping arm 25 through axles 24. The track clamping arm 25 is installed in the middle of the base plate 6 and the gear box 9, and is slidably connected to the base plate 6 and the gear box 9. A track clamping spring 26 is installed on the side of the track clamping arm 25, and the back of the track clamping arm 25 is fixedly connected to the track clamping rod 27.

[0027] See also Fig.10 The lower end of the safety belt hanging arm 5 of the escape device is rotatably connected to the bottom plate 6. Usually, the safety belt hanging arm is folded and fitted to the tail of the escape device. When the escape device is clamped on the escape track, the safety belt hanging arm is pulled down, and the locking piece 28 on the side of the hanging arm hooks the locking pin 29 of the clamping rail pull rod, and the escape device is firmly locked on the escape track. A round hole 30 is provided at the upper end of the safety belt hanging arm for hanging the safety belt.

[0028] The high-rise escape track of the present invention is installed on the outer wall of the building, extending from the top floor to the ground, and can be used on all floors. The escapee only needs to clip the escape device to the escape track, fasten the safety belt and hang the safety belt hook on the safety belt hanging arm to quickly escape from danger.

[0029] The high-rise escape track and escape device of the present invention have simple structure, convenient use and low cost, and are affordable and usable by ordinary people, and are easy to promote and popularize. The present invention turns the windows or balconies of high-rise buildings into escape passages, which can save many lives in critical moments. It solves the problem that people in the building cannot escape when there is a fire or an accident in the high-rise building, and therefore has important social significance and broad application prospects.

Claims

1. A high-rise escape track and escape device, the escape track comprises a track body and a bracket, a rack is installed on the side of the track body, characterized in that: The bracket of the escape track is a trapezoidal structure, and a transverse bend is provided on the bracket body; the escape device includes a base plate, a track clamping mechanism is installed in front of the base plate, a speed limiting mechanism is installed on the left side of the base plate, a gear box is installed on the right side of the base plate, a constant speed mechanism and a brake mechanism are installed in the gear box, a brake handle is installed at the back of the base plate, a pair of gripping handles are installed below the brake handle, and a safety belt hanging arm is installed in the middle of the gripping handle; the escape track is vertically installed on the outer wall of the building, and its lower end extends to the ground. The escape device is clamped on the escape track through the track clamping mechanism and the speed limiting mechanism, and the gear of the speed limiting mechanism is meshed with the rack of the escape track.

2. The high-rise escape track and escape device according to claim 1, characterized in that: The cross section of the escape track bracket is "H" shaped, and the transverse bending angle of the bracket is 100º-170º.

3. The high-rise escape track and escape device according to claim 1, characterized in that: The speed limiting mechanism of the escape device comprises a gear cover, a gear shaft and a transmission wheel. The shaft end of the gear shaft is installed in the gear box through a bearing and is rotationally connected with the constant speed mechanism through the transmission wheel.

4. The high-rise escape track and escape device according to claim 1, characterized in that: The constant speed mechanism of the escape device is composed of an escape wheel, an escape fork and a plurality of double gears. The large gear of the double gear is meshed with the small gear of another double gear to transmit power to the escape wheel step by step. The escape wheel controls the rotation speed by meshing with the escape fork, and a constant speed throw block is installed behind the escape fork.

5. The high-rise escape track and escape device according to claim 1, characterized in that: The brake mechanism of the escape device includes a brake frame, a brake caliper and a brake pad, wherein the brake pad is fixedly mounted on the inner circle of the brake caliper. There are two brake calipers, one end of which is mounted on the brake frame through a rotating shaft, and the other end is connected to the brake handle through a brake cable or a pull rod.

6. The high-rise escape track and escape device according to claim 1, characterized in that: The rail clamping mechanism of the escape device includes a rail clamping arm, a rail clamping wheel and a rail clamping rod. There are two rail clamping wheels, which are respectively installed at both ends of the rail clamping arm through wheel axles. The rail clamping arm is installed in the middle of the base plate and the gear box, and is slidably connected to the base plate and the gear box. A rail clamping spring is installed on the side of the rail clamping arm, and the back of the rail clamping arm is fixedly connected to the rail clamping rod.

7. The high-rise escape track and escape device according to claim 1, characterized in that: The lower end of the safety belt hanging arm of the escape device is rotatably connected to the bottom plate, and a locking piece is provided on the side of the lower end for locking the rail clamping mechanism. The upper end of the safety belt hanging arm is provided with a round hole for hanging the safety belt.

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