CN2386837Y

CN2386837Y - Electromagnetic slowly-landing appts. for building fire disaster

Info

Publication number: CN2386837Y
Application number: CN 99219240
Authority: CN
Inventors: 孔庆成; 李培芳
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-10
Filing date: 1999-08-10
Publication date: 2000-07-12
Anticipated expiration: 2009-08-10

Abstract

The utility model relates to an electromagnetic slowly-landing lifesaving device for building fire hazards. A suspension cable wheel is arranged on a main shaft in a suspension cable box, and a damping spring and a safe suspension ring are arranged on a suspension cable. The main shaft is fixedly connected with a ratchet wheel, and a rotation shaft of an electromagnetic energy consumption device is driven by a speed changer to rotate. The device is fixed on a wall, a waistband is hung on the suspension ring, the human body gravity is transmitted to the suspension cable through the suspension ring and the damping spring to generate driving torque for the main shaft to drive the ratchet wheel, and the speed changer drives the electromagnetic energy consumption device to generate induced current. When the current and a main magnetic field interact to cause the braking electromagnetic torque and a drive torque to be balanced, escaping persons can go down at a safe and uniform speed. The utility model has the advantages of smooth brake, convenient operation and short rescue time.

Description

Floor fire disaster escaping electromagnetic type descending lifeline

The utility model relates to the device of being convenient to from building or analog escape.

When the floor breaking out of fire, corridor, corridor, escape way etc. are often stopped up by pyrotechnics, and trapped personnel can't be escaped.At this moment, trapped personnel escape way the most efficiently is to select to jump out of the building and descend from window, and the result is either dead or wounded, and when especially floor was higher, there was not the hope of escaping from window in trapped personnel.At present, domestic have a kind of mechanical friction type escaping descent control device, this descending lifeline adopts the moment of friction of suspension cable and pulley to drive the mechanical friction device with several friction plates, utilize the gravity of the moment of friction of strigil, consume the gravitational potential energy of human body with the frictional heat energy of strigil with the balance human body.The suspension cable of this escape device and descending lifeline are separate types, and location hook is fixed, and the bearing that trapped personnel must be run away to roof could implement escape.And because of suspension cable separates with descending lifeline, operate cumbersomely, the escape personnel must have sufficient time, could escape.This descending lifeline utilizes frictional drive, utilizes friction disc brake, so the trimming moment uncertain factor that provides is more, causes random error easily.Other has a kind of suspension cable friction-type escape apparatus, relies on the body weight of the frictional force of strigil and suspension cable with the balance people, and in whole decline way, the escape personnel must control strigil at any time, to regulate frictional force.Operate difficultly, be not suitable for the usefulness of old man, child's escape especially.

The purpose of this utility model provides a kind of floor fire disaster escaping electromagnetic type descending lifeline, and by the braking moment of electromagnetic type energy consumer, the gravitational potential energy that consumes the escape personnel is escaped rapidly.

For achieving the above object, the technical solution adopted in the utility model is that it comprises:

1) suspension cable roller box: on the main shaft in the suspension cable roller box, dress is wound with the suspension cable wheel of suspension cable, on the suspension cable outside the suspension cable roller box, buffer spring and safe suspension ring is housed successively;

2) speed changer: an end stretches on the main shaft in the speed changer and is connected with ratchet, the driven wheel one-directional rotation, through a gear and with coaxial mounted another gear of a gear, the gear that drives in the rotating shaft of stretching in the speed changer rotates;

3) electromagnetic type energy consumer: main pole is housed in casing, is equipped with between main pole by rotating shaft and drives the rotor that rotates.

Below in conjunction with accompanying drawing,, provide details of the present utility model by description to embodiment.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the ratchet mechanism schematic diagram;

Fig. 3 is the another kind of structural representation of electromagnetic type energy consumer;

Fig. 4 is the utility model scheme of installation.

As shown in Figure 1, the utility model is mainly by suspension cable roller box 6, speed changer 9, and electromagnetic type energy consumer 17 is formed.Be provided with suspension cable wheel 1 in the suspension cable roller box 6, main shaft 2, suspension cable 19 usefulness cover plates 4 cover.Be provided with ratchet 5 in the speed changer 9, ratchet 5 and main shaft 2 rigid attachment, main shaft 2 by ratchet 5 can only folk prescription to driven wheel 12, gear 12 driven gears 7, gear 7 is by axle 11 driven gears 10, and gear 10 driven gears 18 drive the rotor 15 of electromagnetic type energy consumer 17 then, the needs that speed changer 9 is looked transmission speed ratio can adopt two-stage or multi-change speed, make the rotor 15 of electromagnetic type energy consumer 17 obtain suitable rotating speed.The electromagnetic type energy consumer has two kinds of versions: as shown in Figure 1 a kind of, electromagnetic type energy consumer 17 is in casing 13 inboards main pole 14 to be housed, and 14 of main poles are equipped with by rotating shaft 16 and drive the rotor 15 that rotates.Another kind as shown in Figure 3, electromagnetic type energy consumer 29 is in casing 26 inboards main pole yoke 27 to be housed, and main pole 28 is housed on main pole yoke 27, in 28 of every pair of main poles (among the figure being two pairs) disk rotor 25 that is driven by rotating shaft 24 is housed.Main pole can adopt permanent-magnet structure or electromagnetic structure or permanent-magnetism electromagnetic hybrid combination, and rotor can adopt multiple versions such as solid rotor, cage rotor, phase-wound rotor.The lower end of suspension cable 19 is provided with a buffer spring 20 and buffering spring protecting sleeve 21, the impulsive force when beginning to descend in order to the buffering escape personnel, and safe suspension ring 22 are in order to connect lap belt.

As shown in Figure 4, when the floor breaking out of fire, the escape personnel is enclosed within location hook 31 on the vertical parapet of window earlier, with location holding screw 30 location hook 31 is fixed on the body of wall firmly.Then the hole 8 of electromagnetism descending lifeline 32 upper ends is hung on the location hook 31, fasten lap belt 33, and after being enclosed within the hook of waistband on the safe suspension ring 22, escape personnel 34 promptly can climb out of outside window, escape in the down slow ground 35 of reducing to.Its operation principle: escape personnel's body weight power G passes to suspension cable 19 by safety suspension ring 22 and buffering spring 20, main shaft 2 is produced driving torque T, drive ratchet 5, driven gear 12, gear 7, gear 10, gear 18 then, drive the rotating shaft 16 of electromechanical energy consumer 17 at last, rotate thereby drive rotor 15, rotor 15 produces induced-current because of the main field that cutting main pole 14 is produced, and this induced-current and main field interact and produce the electromagnetic torque T of a braking character _M, when rotor 15 reaches certain rotating speed, T _MJust balance each other by speed changer with driving moment T.As adopt electromagnetic type energy consumer 29 shown in Figure 3, and when disk rotor 25 rotates, cut the magnetic field that main pole 28 produces, in dish, produce eddy current, this eddy current and main field interact, and produce the braking electromagnetic torque, in order to the torque of balance escape personnel body weight generation.This moment, the escape personnel promptly descended evenly with certain safety speed, until arriving ground 35.From the viewpoint of energy balance, escape personnel's body weight potential energy greatly part will be converted into faradic heat energy, be dispersed in the ambient air at last by cooling effect.

As shown in Figure 1 and Figure 2, intrinsic ratchet 5 on the main shaft 2 is with gear 12 outside the ratchet 5, and ratchet 23 is housed on the gear 12, and ratchet 23 is formed ratchet mechanisms with ratchet 5.Owing to be provided with ratchet 5, make driving torque T to turn to and to drive electromagnetic type energy consumer 17 a regulation.Therefore after an escape personnel used, trapped personnel upstairs can reverse ratchet 5 with handle by the square toes 3 on the main shaft 2, suspension cable 19 was recovered on the suspension cable wheel 1, for the 2nd the people use of escaping.Because of the folk prescription of ratchet 5 to the transmitting torque effect, when reclaiming suspension cable 19, gear 7 is not driven by ratchet 5, the rotor 15 of electromagnetic type energy consumer 17 does not rotate, and makes when reclaiming suspension cable 19, needn't take very big power, can improve the speed that reclaims suspension cable 19, robs the time.

The utility model is compared with background technology, and the advantage that has is:

1, adopt electromagnetic induction principle to produce a braking moment that balances each other with body weight, braking procedure is steady;

2, the escape personnel need not any operation in suspension cable decline process, can succour old man, children etc. and not have certainly The people of my operational capacity;

3, reverse ratchet recovery suspension cable speed is fast, and the rescue time is short.

Escape was used when therefore, the utility model can be used on the floor fire.

Claims

1. floor fire disaster escaping electromagnetic type descending lifeline is characterized in that it comprises:

1) suspension cable roller box [6]: on the main shaft [2] in the suspension cable roller box [6], dress is wound with the suspension cable wheel [1] of suspension cable [19], on the suspension cable [19] outside the suspension cable roller box [6], buffer spring [20] and safe suspension ring [22] is housed successively;

2) speed changer [9]: an end stretches on the interior main shaft [2] of speed changer [9] and is connected with ratchet [5], by ratchet [23] driven wheel [12] one-directional rotation, through gear [7] and with the coaxial mounted gear of gear [7] [10], the gear [18] that drives in the rotating shaft [16] stretch in the speed changer [9] rotates;

2. floor fire disaster escaping electromagnetic type descending lifeline according to claim 1 is characterized in that: described electromagnetic energy-consumption device [17] is in casing [13] inboard main pole [14] to be housed, and is equipped with between main pole [14] by rotating shaft [16] and drives the rotor [15] that rotates.

3. floor fire disaster escaping electromagnetic type descending lifeline according to claim 1, it is characterized in that: described electromagnetic energy-consumption device [29] is in casing [26] inboard main pole yoke [27] to be housed, main pole [28] is housed on main pole yoke [27], the disk rotor [25] that is driven by rotating shaft [24] is housed between every pair of main pole [28].

4. according to claim 1 or 2 or 3 described floor fire disaster escaping electromagnetic type descending lifelines, it is characterized in that: described main pole is permanent-magnet structure or electromagnetic structure or permanent-magnetism electromagnetic hybrid combination, and rotor is solid rotor or cage rotor or phase-wound rotor.