CN2175011Y - Device for lowering persons from building - Google Patents

Abstract

The utility model provides a life saving slowly landing device for high buildings, which comprises a casing body, a speed increasing drive gear, an overrunning clutch, an escape speed governor, a steel cable with a latch hook, etc. The life saving slowly landing device for high buildings is characterized in that the speed increasing drive gear is composed of the engagement of a great wheel, and a center wheel; the escape speed governor is composed of an escape wheel and a pawl; the overrunning clutch is composed of a block nail on the great wheel, a steel wire spring, a ratchet wheel, a ratchet pawl shaft, a ratchet pawl, and a drum shaft. The utility model has the advantages of simple structure, reliable performance, high safety, and no jam phenomenon. Because of an average deceleration is about 0.15 m / s, the life saving slowly landing device for high buildings can be made into internally steel cables storage serial products with different lengths in order to meet the needs of buildings with different heights.

Description

Device for lowering persons from building

The utility model relates to a kind of fire-extinguishing and lifesaving apparatus, especially a kind of descending lifeline that is used for high floor lifesaving.

In a single day fire alarm takes place in skyscraper, the personnel of high building resident family are occurred repeatedly because of passage is subjected to big fire to block the example that can't escape, use the descending lifeline tool and can bring life to above-noted persons, existing descending lifeline is that a kind of needs are through the interior cogged apparatus on the big rope, can the big rope in manned edge with 1 meter speed landing each second, its shortcoming is to rely on big rope, decrease speed is too fast, ordinary person is difficult to adapt to, and does not apply yet so far.

The purpose of this utility model provides a kind of simple in structure, dependable performance, descending lifeline safe in utilization, the chance that the people because of the stranded high building of fire is survived.

This high building lifesaving slow falling apparatus is by housing, speedup travelling gear, but freewheel clutch, escapement speed regulator, the steel wire rope that colludes with lock etc. are partly formed.

Be elaborated below in conjunction with accompanying drawing.

Fig. 1 is the utility model Facad structure schematic diagram.

Fig. 2 is the utility model right view.

The housing of this high building lifesaving slow falling apparatus (5) is formed by upper shell and lower house cooperation, be positioned at the great wheel (13) at housing (5) middle part with under escape wheel (10) and with escape wheel coaxial two take turns (37) the composition speedup travelling gear that is meshed, escape wheel (10), clamp (8) forms no intrinsic vibration escape wheel speed regulator, two take turns (37) is integral with the uniform riveting of rivet with escape wheel (10), escapement wheel shaft (11) is firm the connection with escape wheel (10), with housing be movingly, with fixing clamp (8) connecting handle (12) of clamp axle (9), during no intrinsic vibration escape wheel speed regulator vibration, handle (12) essence is the mass of clamp (8), play the swing inertia of increase clamp, prolong the effect of vibration period, be again the stopper handle simultaneously, namely stop lower as long as pin handle (12) descending lifeline Fall. Be provided with retaining screw (14) in great wheel (13), wire spring (15), ratchet (21), pawl axis (18), ratchet (16), wire spring (15) one ends are clamping on ratchet (16), the other end props up retaining screw (14), make the tip of ratchet (16) obtain elasticity constantly by past ratchet (21), pawl axis (18) and great wheel (13) are for firmly to be connected, with ratchet (16) movingly each other, spool shaft (20), ratchet (21), great wheel (13) is concentric, great wheel (13) and spool shaft (20) are movingly each other, ratchet (21) cooperates for key with spool shaft (20) and is fastening with nut, spool shaft (20) and housing (5) movingly each other, housing (5) is cooperated with lower house by upper shell and forms. Great wheel (13), retaining screw (14), wire spring (15), ratchet (21), spool shaft (20), pawl axis (18), ratchet (16) but jointly form freewheel clutch, when being past certain direction rotation of spool shaft (20), only together rotate with ratchet (21), and when rotating toward rightabout, drive through ratchet mechanism that great wheel (13), two is taken turns (37) and the escape wheel speed regulator that is made up of clamp (8), escape wheel (10) together moves. is at spool shaft (a 20) end of housing on the lower; Be fastened with Holder for hand crank (33) with nut; Hook switch sheet (32); This seat (33) cooperates for key with spool shaft (20); Hinge (31) is connected together Holder for hand crank (33) and Zhe arm (30); Crank on the Zhe arm (29) at ordinary times Zhe is hidden; In the chambers of the heart of spool shaft (20); Hook switch sheet (32) works the positioning action of the folding condition that keeps Zhe arm (30); In close ratchet one side of spool shaft (20); Be provided with the top (17) that an elliptical aperture (35) is used for clamping steel wire rope (25); In the face of the lower house front; Shake clockwise crank (29), steel wire rope (25) that can housing is outer fast rolling returns on the spool shaft (20), shakes counterclockwise crank (29); Can drive great wheel; Two take turns, and the escape wheel speed regulator action, simultaneously; Steel wire rope (25) slowly stretches out outside the housing with the rotation of spool shaft (20). The end of steel wire rope (25), be fastened with moving lock hook (28), the shell fragment (27) that is fastened on the moving lock hook (28) with rivet (26) plays automatically to prevent locking hook, pulley spindle (22) is used for being fixedly mounted with pulley (23), itself and pulley and and housing between be movingly, steel wire rope (25) is drawn housing through pulley (23), reducing friction, and strengthens descending lifeline to the adaptability of different loading angles. On the top of housing, be provided with perforation (6), sleeve (9) runs through the housing assembling And fastening with nut, sleeve (9) and housing movingly each other, steel wire rope (4) is walked around sleeve (9) and is stretched out outside the housing from the set point of the mosaic of upper and lower casing, and is fastened on lock and colludes on (1), steel wire rope has enough length, and fracture is welded with soft soldering. It is the same with moving lock hook (28) structure that lock colludes (1), and lock hook is also identical with the fastening method that steel wire rope connects. Clamp axle (9), escapement wheel shaft (11) all run through the housing assembling, and lower house supports above-mentioned diaxon at the position that set point is pressed with outer recessed convex, and fixes with jump ring. Can fix the together end cap of protected decoration effect in the housing front.

Be wrapped in steel wire rope on the spool shaft as pulling it housing with external force when outer, must take turns together with great wheel, two, and by escape wheel, the card molecular escape wheel speed regulator together move, this course of work essence is the speedup transmission of taking turns with great wheel, two, and is coordinated mutually and the motion process that jointly mechanical damping of the rotation of spool shaft cushioned by escape wheel and the escape wheel speed regulator of clamp.

The slow of descending lifeline falls liking human body, the size of its slow reduction of speed degree and human bady gravitational, the spool shaft diameter, the number of plies of lay winding wire ropes how much, the speed ratio size of speedup transmission, what of the escape wheel number of teeth, the size of the pendulum angle of clamp, the size of swing inertia, the size of mechanical friction resistance is all closely related, the average reduction of speed of present embodiment is about 0.15M/ second, use this descending lifeline and answer chosen in advance to hang descending lifeline and be convenient to the human body occasion of landing downwards, window for example, the places such as balcony, and should take in advance reinforcement measure, in case in response to cause contingency with descending lifeline. With the safety belt that descending lifeline is used, all there is sale in each appliances for labor protection shop, and this is a kind of strong waistband with metal clasp. Family is equipped with in this way, and Major Members should be known maintenance, the working knowledge of descending lifeline at ordinary times, and unit is equipped with in this way, should have the special messenger to be responsible for safeguarding and practicing.

This novel descending lifeline can be saved oneself, rescue mutually, one device can be rescued many people, for example, fire alarm or other alerts take place and confirm that passage can't escape, answer immediate shipment to hang up properly descending lifeline, with steel wire rope on window frame, with the lock hook on steel wire rope, and fasten seat belts for the personnel that will fall, oppositely shake crank, make lock hook and steel wire rope stretch next segment length, moving lock hook is buckled on the clasp of safety belt, can begin slow falling from the precalculated position, at this moment, descending lifeline should have the special messenger to grasp, and fall or emergent midway stopper slow, and the landing personnel unloads safety belt after arriving ground, use crank fast and reclaim steel wire rope, safety belt is fallen another people again and is waited work, all needs the continuous repetitive operation of special messenger, until remaining last man-hour, should be about to descending lifeline and unload, use steel wire rope instead, be entangled on the window frame, to move lock hook is buckled on the steel wire rope, on the clasp of safety belt, allow descending lifeline together land, like this with the lock hook in company with human body, could can grasp necessary stopper in the process slow falling, or get rid of the unexpected fault that comes from descending lifeline that occurs.

The course of work of this descending lifeline, be actually the process of human body gravity through the mechanical damping buffering of steel cable hitch wheel axle rotation, this process is by great wheel, the two speedup transmissions of taking turns, and by clamp, the coordination of the escapement speed regulator that escape wheel is formed realizes jointly, have simple in structure, the characteristics of reliable operation, particularly clamp is connecting handle, except that can using for stopper, still can be just in case because during the vibrator failure of oscillation, the way that available hand back and forth shakes handle makes descending lifeline continue to descend, escapement also has an advantage, when causing the centre-to-centre spacing of clamp and escape wheel to increase owing to wearing and tearing, stuck phenomenon can not appear, this be other mechanical dampings cushion ways can not compare.

The series of products of storage steel wire rope 25M, 50M, 100M in this high building lifesaving slow falling apparatus can be produced and make are to adapt to the needs of different building heights.The hardware factory of allly have punching press, car, milling the means of production all can implement.

Claims (1)

1, a kind of descending lifeline that is used for high-rise building life saving is made up of lock hook, steel wire rope, pulley, ratchet, escape wheel, wire spring, hinge, crank etc., it is characterized in that:

A, be positioned at the great wheel (13) at housing (5) middle part with under escape wheel (10) and with escape wheel coaxial two take turns (37) the composition speedup travelling gear that is meshed; Form no intrinsic vibration escapement speed regulator with the escape wheel (10) that escapement wheel shaft (11) firmly is connected with clamp (8); The clamp (8) fixing with clamp axle (9) connects handle (12), and clamp axle (9), escapement wheel shaft (11) run through the housing assembling, and above-mentioned diaxon is supported at lower house position of recessed convex outside set point is pressed with, and fixes with jump ring;

B, on great wheel (13), be provided with retaining nail (14), wire spring (15), ratchet (21), pawl axis (18), ratchet (16), with spool shaft (20) but form freewheel clutch jointly, wire spring (15) one end clampings are on ratchet (16), the other end props up retaining nail (14), and spool shaft (20), ratchet (21), great wheel (13) are with one heart;

C, be fastened with Holder for hand crank (33), hook switch sheet (32) near an end of lower house in spool shaft (20), Holder for hand crank and spool shaft (20) are for movingly, hinge (31) connects together Holder for hand crank (33) and Zhe arm (30), and the crank on the Zhe arm (29) Zhe is at ordinary times ensconced in the chambers of the heart of spool shaft (20);

D, establish an elliptical aperture (35) in spool shaft (20) near ratchet (21) one sides, be used for clamping the top (17) of steel wire rope (25), the end of steel wire rope (25) is fastened with the moving lock hook (28) of shell fragment (27);

E, be provided with perforation (6) on housing top, sleeve (9) runs through the housing assembling, and steel wire rope (4) is walked around sleeve (9) and stretched out outside the housing from the set point of last lower house mosaic, and the lock that is fastened on shell fragment (2) colludes on (1).

Images