WO2008141553A1

WO2008141553A1 - Buoyant apparatus for high building

Info

Publication number: WO2008141553A1
Application number: PCT/CN2008/070705
Authority: WO
Inventors: Wanyu Liu
Original assignee: Wanyu Liu
Priority date: 2007-05-17
Filing date: 2008-04-14
Publication date: 2008-11-27
Also published as: CN201052346Y

Abstract

A buoyant apparatus for high building, which relates to lifesaving slow falling device, includes a life line case 1. A life line 3 is fetched out from the life line case 1 and wound on a winding mechanism, an uniform speed safety mechanism 2 is provided on the winding mechanism. It is characterized that, said uniform speed safety mechanism 2 includes a ratchet wheel 10, the teats 12 are uniformly set on the ratchet wheel 10 along its side wall. A through hole 13 is installed at the axle center of the ratchet wheel 10, and used to be penetrated by the transmission shaft 7 to let the ratchet wheel 10 and the transmission shaft 7 rotate simultaneously. At least one sliding rocker 9 is set along the side wall of the ratchet wheel 10 to define the descend speed. The teats 12' are provided on the both ends of the sliding rocker 9 and matched with the teats 12. A stationary shaft 11 is provided on the sliding rocker 9. The buoyant apparatus for high building of the present invention is provided with the uniform speed safety mechanism controlling descend speed by using the mechanical structure. The buoyant apparatus for high building of the present invention has high security, simple structure and low cost, and is free of maintenance. It can let several persons escape in turn using onlyone life line, and also can let several persons escape simultaneously using many lines.

Description

High-rise life preserver

Technical field

The invention relates to a lifesaving slow down device, in particular to a high building life preserver.

With the gradual increase of high-rise buildings, high-rise escape equipment has increasingly highlighted its necessity and importance. The current high-rise life-saving devices use life-saving ropes to take the user from the high-rise to the bottom or the safe area in a uniform speed. There are two types of rope-removing methods: the upper rope and the lower rope. The uniform speed insurance mechanism that controls the speed of the rope is roughly divided into the following three types: hydraulic technology, centrifugal friction technology, and manual brake technology. When using high-rise life-saving appliances, there can only be one life-saving device per person, and each life-saving device has only one life-saving rope available.

The existing volume is large, generally 300mm in diameter, and the weight is heavy. Because of the escape mode of one person and one rope, the escape rate of the high-rise life preserver is low, and it cannot adapt to the actual situation of many high-rise building personnel. Most of the existing uniform speed insurance mechanisms that control the speed of the rope release require regular maintenance and maintenance, and have certain requirements on the use environment, so the safety of the product itself is low. For example: The hydraulic safety technology of the uniform speed insurance mechanism is equipped with hydraulic oil, oil seal, oil valve, piston rod, etc. If it is left for too long, there will be problems such as deterioration of hydraulic oil, aging of oil seal, oil valve sticking, and piston rod corrosion. A uniform speed insurance mechanism using centrifugal friction technology or manual brake technology is internally provided with a brake pad or a centrifugal block. The brake pad and the centrifugal block are sensitive to changes in environment, temperature, humidity, etc. When the temperature difference between indoor and outdoor is too large or damp, the brake pad It is prone to slipping, and the centrifugal block is easily rusted and stuck. This has brought a lot of security risks to the high-rise life preserver. Summary of the invention

In view of the defects existing in the prior art, the object of the present invention is to provide a high-rise life-saving device with a uniform speed insurance mechanism that adopts a mechanical structure to control the descending speed, which has high safety, maintenance-free, simple structure, low cost, and can be multi-person. One rope can be slowly and evenly escaped, and many people can multiply and escape at a constant speed. In order to achieve the above object, the technical solution adopted by the present invention is:

A high-rise life-saving device, comprising a life-saving cord box 1, the life-saving cord 3 being taken out from the life-saving cord box 1 and wound around a winding mechanism provided with a constant-speed insurance mechanism 2, characterized in that: the constant-speed insurance mechanism 2 comprises The ratchet 10, the ratchet 10 is evenly disposed with a protruding portion 12 along the sidewall, the shaft center of the ratchet 10 is provided with a transmission through hole 13 through which the transmission shaft 7 passes, and the ratchet 10 and the transmission shaft 7 are simultaneously rotated, and at least along the side wall of the ratchet 10 There is a slide 9 for limiting the descending speed, and both ends of the slide 9 are provided with a projection 12' which is fitted with the projection 12, and the slide 9 is provided with a fixed shaft 11.

On the basis of the above technical solution, the ratchet 10 is evenly provided with an arc-shaped protruding portion 12 along the side wall, and the two ends of the sliding pendulum 9 are provided with an arc-shaped protruding portion 12' adapted to the protruding portion 12, and the middle portion of the sliding pendulum 9 is provided. There is an arcuate projection 12' that is adapted to the projection 12.

On the basis of the above technical solution, the ratchet 10 is evenly provided with triangular projections 12 along the side walls, and both ends of the sliding yoke 9 are provided with cylindrical projections 12' which are fitted with the projections 12.

On the basis of the above technical solution, the winding mechanism includes at least three winding posts 23 arranged side by side, the lifeline 3 is alternately wound between the winding posts 23, and a bracket 6 is arranged between the winding posts 23, at a constant speed. The fuse mechanism 2 is connected by a drive shaft 7 and any one of the bobbins 23.

On the basis of the above technical solution, the winding mechanism includes at least two reeling wheels 4 arranged side by side, and the circumferential surface of the wheel body 14 of each reeling wheel 4 is provided with at least four winding grooves 18, The lifeline 3 is alternately wound in a figure-eight shape between the winding grooves 18 of the two reels 4, and the axis of each of the reels 4 is provided with a through hole 20 through which the transmission shaft 7 passes, and two transmission shafts 7 After passing through the through hole 20, it is connected through the transmission gear set 5 and the constant speed insurance mechanism 2, and the inner side ring 19 is provided on the same side of each reel 4, and the transmission wheel 8 is provided in the inner ring gear 19, and the transmission wheel 8 and The drive shaft 7 rotates at the same time, and the drive wheel 8 can only rotate the reel 4 with the ring gear 19 in one direction, and the sides of the two reels 4 are connected by the bracket 6.

On the basis of the above technical solution, the transmission wheel 8 includes a retaining ring 21 having at least two pawls 15, the pawls 15 and the teeth of the inner ring gear 19 are fitted, and the retaining ring 21 is provided with the pawl 15 The adapted spring groove 16 has an axial center of the retaining ring 21 provided with a drive through hole 17 adapted to the drive shaft 7. Based on the above technical solution, the transmission through hole 13 has a circular or D-shaped cross section. The high-rise life-saving device of the invention is provided with a constant-speed insurance mechanism which adopts a mechanical structure to control the descending speed, has high safety, is maintenance-free, has a simple structure, and has low cost, and can be easily and repeatedly descended by a plurality of people, and can also be multi-personed. The rope descends at a constant speed and escapes. DRAWINGS

The invention has the following figures:

Figure 1 High-rise life-saving device embodiment 1

Figure 2 Uniform speed insurance mechanism embodiment 1

Figure 3 Schematic diagram of the reel and A-A cross-sectional view

Figure 4 Schematic diagram of the embodiment of the uniform speed insurance mechanism

Figure 5 High-rise life-saving device embodiment 2 structure schematic diagram

1 is the lifeline cord box, 2 is the constant speed insurance mechanism, 3 is the lifeline, 4 is the reel, 5 is the transmission gear set, 6 is the bracket, 7 is the transmission shaft, 8 is the transmission wheel, 9 is the sliding, 10 For the ratchet, 11 is the fixed shaft, 12 is the protruding part, 12' is the protruding part, 13 is the transmission through hole, 14 is the wheel body, 15 is the pawl, 16 is the spring groove, 17 is the transmission through hole, 18 is the winding The slot, 19 is an inner ring gear, 20 is a through hole, 21 is a retaining ring, 22 is a fixed end, and 23 is a bobbin. detailed description

The present invention will be described in detail below with reference to the accompanying drawings.

1 is a schematic structural view of a high-rise life-saving device system according to the present invention, including a life-saving cord box 1, and a life-saving cord 3 is taken out from a life-saving cord box 1 and wound around a winding mechanism provided with a constant-speed insurance mechanism 2, The uniform speed securing mechanism 2 includes a ratchet 10, and the ratchet 10 is evenly disposed with a protruding portion 12 along the side wall. The shaft center of the ratchet 10 is provided with a transmission through hole 13 through which the transmission shaft 7 passes. The ratchet 10 and the transmission shaft 7 rotate simultaneously, along the ratchet The side wall 10 is provided with at least one slide 9 for limiting the descending speed, and both ends of the slide 9 are provided with a protrusion 12' adapted to the protrusion 12. The slide 9 is provided with a fixed shaft 11. The working principle of the high-rise life-saving device of the present invention is: according to the actual load-bearing load requirement and the design requirement for the expected descending speed, a certain weight of the sliding pendulum 9 is selected, and the protruding portion 12' and the ratchet 10 side on the sliding pendulum 9 are selected. The cooperation between the plurality of protrusions 12 on the wall causes the slides 9 to pass through each of the protrusions 12 one by one at a constant speed, and the constant speed drop is released by the friction between the protrusions 12' and the protrusions 12 to release the lifeline 3 . The sliding speed 9 on the constant speed securing mechanism 2 is at least one, and may be two, three or more. When one or more sliding strokes 9 are provided, it is preferable to uniformly and symmetrically set on the side wall of the ratchet wheel 10. For example, three slides 9 may be provided as shown in FIG. 2, or two slides 9 may be provided as shown in FIG. The constant speed safety mechanism 2 can be used in any occasion where it is necessary to control uniform motion and equipment, especially the high-rise life preserver of the present invention. Since both ends of the sliding pen are provided with the protruding portion 12', the protruding portion 12' at one end of the sliding pendulum is driven by the ratchet, and is in frictional contact with the protruding portion 12 to reduce the speed, and the other end is separated from the protruding portion 12, The ratchet can be rotated, and the end of the sliding during each alternation is only in close contact with one of the protrusions 12 to form a friction surface, and the next protrusion 12 immediately adjacent to the closely contacting protrusion 12 in the direction of the ratchet movement is just in the sliding state. Just below the other end, the contact with the projection 12' is prepared or just released from the contact with the projection 12', so that the same purpose is achieved.

On the basis of the above technical solution, as shown in FIG. 2, the ratchet 10 is evenly arranged with arc-shaped protrusions 12 along the side walls, and both ends of the slide pendulum 9 are provided with arc-shaped protrusions 12' which are matched with the protrusions 12, The middle portion of the slider 9 is provided with an arcuate projection 12' adapted to the projection 12. The middle portion of the slider 9 is provided with a projection 12' to ensure uniform motion, and to prevent the projection 12 from suddenly accelerating due to lack of obstruction when moving from one end of the slider to the other end.

On the basis of the above technical solution, as shown in Fig. 4, the ratchet 10 is evenly provided with triangular projections 12 along the side walls, and both ends of the sliding projection 9 are provided with cylindrical projections 12' which are fitted with the projections 12. This configuration avoids the sudden acceleration of the projection 12 due to lack of obstruction when moving from one end of the sliding to the other end, so that it is not necessary to separately add the projection 12' in the middle of the swing.

Based on the above technical solution, FIG. 5 shows an embodiment of the high-rise life preserver according to the present invention, wherein the winding mechanism includes at least three winding posts 23 arranged side by side. The lifeline 3 is alternately wound between the bobbins 23, and a bracket 6 is disposed between the bobbins 23, and the constant speed securing mechanism 2 is connected through the propeller shaft 7 and any one of the bobbins 23. One end of the lifeline is connected to the fixed end 22, and the fixed end 22 can be placed on the wall near the escape passage such as a window or a balcony in the room. In Figure 5, three life preservers (dashed boxes in Fig. 5) are installed, and each life preserver Each has a separate speed insurance mechanism. The life preserver shares a lifeline. The number of life savers can be increased or decreased according to actual needs. The other end of the lifeline is fixed in the lifeline box. When it is necessary to use the life saver to escape, first throw the lifeline box to the ground outside the building, then the lifeline is fully released, and then the escaper holds the lifeguard to escape the belt or seat belt (not shown). On the body, in the order from right to left along the lifeline to escape, regardless of weight, can be evenly descended, the lifeline length itself does not change, but the life-saving device slides down on the lifeline, the sliding speed can be slipped The weight is regulated, for example: can be 1 m / s. In the high-rise life-saving device shown in Figure 5, multiple people can smoothly descend and escape in a row. When the leftmost person escapes, the middle person can escape, and finally the rightmost person escapes. That is: the last escape from the fixed end, the first escape from the lifeline box.

Based on the above technical solution, FIG. 1 shows another embodiment of the high-rise life preserver according to the present invention, wherein the winding mechanism comprises at least two reeling wheels 4 arranged side by side, each of the reeling wheels 4 The circumferential surface of the wheel body 14 is provided with at least four winding grooves 18, and the lifeline 3 is alternately wound in a figure-eight shape between the winding grooves 18 of the two reels 4, and the axis of each of the reels 4 is A through hole 20 is provided through which the transmission shaft 7 passes. The two transmission shafts 7 pass through the through hole 20 and are connected through the transmission gear set 5 and the constant speed safety mechanism 2, and the inner teeth of the same side of each of the reeling wheels 4 are provided. In the ring 19, the inner ring gear 19 is provided with a transmission wheel 8, and the transmission wheel 8 and the transmission shaft 7 are simultaneously rotated. The transmission wheel 8 can only unidirectionally rotate the reel 4 provided with the inner ring gear 19, and two reels The sides of 4 are connected by a bracket 6. Figure 1 contains at least 2 life savers, both of which use the same uniform speed fuse mechanism. Each life saver is provided with a lifeline cable box and two reels, that is, each life saver is separate. Using a lifeline, the number of life savers can be increased or decreased according to actual needs. Usually, 1 to 4 life savers are provided. For each additional life saver, a lifeline box, a lifeline, and two juxtaposed settings are required. Winding wheel 4. The transmission shaft is shared by a plurality of life savers. Therefore, based on the above technical solution, the structural diagram of the reel 4 can be seen in FIG. 3, and FIG. 3 also includes the internal teeth of the reel. AA cross-sectional view of the ring portion, wherein the transmission wheel 8 includes a retaining ring 21 having at least two pawls 15, the pawls 15 and the teeth of the inner ring gear 19 are fitted, and the retaining ring 21 is provided with a spine The spring groove 16 of the claw 15 is adapted, and the shaft center of the retaining ring 21 is provided with a transmission through hole 17 which is adapted to the drive shaft 7. This structure ensures that only the life preserver in use will release the rope, while the unused life preserver will only idle. The spring in the spring slot 16 ensures that the pawl is normally in the ejected state and can be retracted into the spring slot when stressed. As shown in FIG. 1, when the lifeguard on the right side is used, the direction of rotation of the transmission shaft 7 is as indicated by an arrow. As can be seen from FIG. 3, the wheel body 14 rotates counterclockwise due to the release of the lifeline. The teeth of the inner ring gear drive to contact the pawl and thereby drive the retaining ring to rotate, so that the transmission wheel 8 and the transmission shaft 7 rotate simultaneously, and then the transmission shaft drives the transmission gear set to drive the uniform speed insurance mechanism 2 to rotate, thereby realizing the right side. The life-saving device user escapes at a constant speed. At this time, the life-saving device on the left side can be used separately for another user, and the two do not affect each other, so that multi-person multi-rope and uniform slow-down escape are realized, and the transmission shaft is connected to the same uniform speed insurance mechanism 2. Multiple life savers can be used at the same time, or they can be used at any time, regardless of the order. If the life saver in Figure 1 is only used on the right side, and the left side is not used, the drive wheel 8 on the left side will also rotate in the direction of the arrow in Figure 3, driven by the drive shaft. The wheel body 14 on the left side does not rotate. Since the pawl cannot rotate the inner ring gear when it is rotated in the direction of the arrow in FIG. 3, it does not cause the liferaft on the left side of FIG. 1 to be released. Only the life-saving device in use will release the rope, and the unused life-saving device will only idling. The high-rise life-saving device shown in Figure 1 can be multi-rope and multi-rope at the same time to slow down and escape at a constant speed. It can also multi-person multi-rope and slow down and escape at a uniform speed, avoiding the life saver shown in Figure 5 waiting for the escaper to escape before being able to escape again. The problem of using. Improve the efficiency of escape.

Based on the above technical solution, the transmission through hole 13 has a circular or D-shaped cross section. Can be better matched with the drive shaft.

The various components and connection methods mentioned in the above technical solutions can be implemented by the prior art.

Claims

Rights request

A high-rise life preserver comprising a lifeline box (1), the lifeline (3) being drawn from the lifeline box (1) and wound around a winding mechanism provided with a constant speed fuse mechanism (2), characterized The said constant speed insurance mechanism (2) comprises a ratchet wheel (10), the ratchet wheel (10) is evenly arranged with a protrusion (12) along the side wall, and the axis of the ratchet wheel (10) is provided for the transmission shaft (7) to pass through Drive through hole (13), ratchet (10) and drive shaft (7) rotate at the same time, along the ratchet

(10) The side wall is provided with at least one sliding stroke (9) for limiting the descending speed, and the sliding portion (9) is provided with a protruding portion (12') fitted to the protruding portion (12) at both ends, and the sliding portion (9) is provided There is a fixed shaft (11).

2. The high-rise life preserver according to claim 1, wherein: the ratchet wheel (10) is evenly arranged with arc-shaped protrusions (12) along the side walls, and both ends of the sliding pendulum (9) are provided with protrusions

(12) An adapted curved projection (12'), the central portion of the sliding projection (9) being provided with an arcuate projection (12') adapted to the projection (12).

3. The high-rise life preserver according to claim 1, wherein: the ratchet wheel (10) is evenly arranged with a triangular protrusion (12) along the side wall, and both ends of the sliding pendulum (9) are provided with a protrusion (12) Fitted cylindrical projection (12').

4. The tall building life preserver according to claim 1 or 2 or 3, wherein: said winding mechanism comprises at least three winding bobbins (23) arranged side by side, and the lifeline (3) is in the bobbin (23) alternately winding, a bracket (6) is arranged between the bobbin (23), and the constant speed securing mechanism (2) is connected through the transmission shaft (7) and any one of the bobbins (23).

5. The tall building life preserver according to claim 1 or 2 or 3, wherein: said winding mechanism comprises at least two reeling wheels (4) arranged side by side, each of the reeling wheels (4) The circumferential surface of the wheel body (14) is provided with at least four winding grooves (18), and the lifeline (3) is alternately wound in a figure-eight shape between the winding grooves (18) of the two reels (4), each The shafts of the reels (4) are provided with through holes (20) through which the drive shaft (7) passes, and two drive shafts

(7) After passing through the through hole (20), it is connected through the transmission gear set (5) and the constant speed fuse mechanism (2). The inner ring gear (19) is provided on the same side of each reel (4). The transmission wheel (8) is arranged in the ring (19), the transmission wheel (8) and the transmission shaft (7) are rotated at the same time, and the transmission wheel (8) can only drive the reel with the inner ring gear (19) in one direction ( 4) Rotate, the sides of the two reels (4) are connected by brackets (6).

6. The tall building life preserver according to claim 5, characterized in that: the transmission wheel (8) comprises a retaining ring (21) with at least two pawls (15), a pawl (15) and an internal tooth The tooth of the ring (19) is adapted, the retaining ring (21) is provided with a spring groove (16) adapted to the pawl (15), and the axis of the retaining ring (21) is adapted to the drive shaft (7) Drive through hole (17).

7. The tall building life preserver according to claim 1 or 2 or 3, characterized in that the transmission through hole (13) has a circular or D-shaped cross section.

8. A tall building life preserver according to claim 4, characterized in that the transmission through hole (13) has a circular or D-shaped cross section.

9. A tall building life preserver according to claim 5, characterized in that the transmission through hole (13) has a circular or D-shaped cross section.

10. A tall building life preserver according to claim 6, wherein the transmission through hole (13) has a circular or D-shaped cross section.