The utility model content
The purpose of this utility model provides a kind of mechanical high-rise escape apparatus, and it can be life and work and is provided at the guarantee of self-help escape in the burst fire-disasters such as fire the crowd of skyscraper.
For achieving the above object, the utility model is taked following design:
A kind of mechanical high-rise escape apparatus, it comprises:
One main slow descending device has the housing of a upper and lower opening, and lateral cross section is tapered, has on lower end one sidewall of housing for handle to prolong the hole that; One connecting rod is positioned in the middle of the housing; A brake rubber block pair is fixed in the upper end of connecting rod, and bottom is provided with a branched shaft; One handle, the handle right-hand member is connected with housing by little axle, and the left end of handle laterally prolongs outside the housing, and handle is connected by branched shaft and connecting rod are vertical, is the fulcrum rotation with little of right-hand member when spurring handle, and connecting rod moves downward simultaneously; One rope sheave floats between brake rubber block pair and handle; Establish a circuitous directive wheel below the fixing a pair of driven folding wheel at housing upper end open place, one of them driven folding wheel; Article one, long load-bearing fire prevention rope centered on rope sheave, and an end is by pulling out between a pair of driven folding wheel, and the other end is derived through circuitous directive wheel;
The suspension ring that are used to hang human body in the housing lower end of main slow descending device fixed installation one.
On two side bodies of rope sheave, also be provided with brake block.
Described rope sheave floats between brake rubber block pair and handle.
The described suspension ring that are used to hang human body can be U type suspension ring.
The utility model machinery high-rise escape apparatus is simple in structure, small volume and less weight, speed-controllable, safe and reliable, and easy to carry and use, manufacturing cost is lower.The user of service need not pass through special training, can carry out effective self-help escape when meeting burst fire-disasters such as fire, earthquake.Also can be used as special personnel and carry out special duty.When the burst disaster, rope one end is fixed on the indoor fixture, the people catches descending lifeline, is integrated with descending lifeline, can slowly drop to ground safely.
The utility model has the advantages that:
1, safe and reliable.The utility model safety coefficient is high, even if operation is accidentally dropped, also can not fall, and the rope sheave that floats under the effect of gravity self-locking can take place, and guarantees safety.
2, simple in structure.The practicality of the utility model simplicity of design, compact conformation.There are not complicated mechanisms such as control system.Therefore fault rate is almost nil.
3, easy to use.The user need not pass through any professional training, as long as handle a little firmly just can slowly descend.Stop firmly then can to stop automatically falling.Firmly size is directly proportional with operator's deadweight.
4, with low cost.The utility model volume is little, in light weight, part is few, simple in structure, low cost of manufacture.As produce by batch and adopt stamping parts and the moulding cost can be lower.Retail price can be controlled in below 50 yuan.
5, be convenient for carrying.Because compact conformation, parts are simplified, so occupy little space, in light weight, be beneficial to and carry.
The specific embodiment
The utility model machinery high-rise escape apparatus is aimed at the deficiency on the prior art, and the utility model that characteristics such as be based on delicate structure, simple to operate, speed-controllable and can hover are aloft carried out is created.
Consult Fig. 1, shown in Figure 2, the utility model machinery high-rise escape apparatus mainly includes main slow descending device and hangs the suspension ring two large divisions that human body is used.
Described main slow descending device is constituted by handle 1, housing 2, long load-bearing fire prevention rope 3, rope sheave 4, connecting rod 5, brake block 6, the secondary 7 and one groups of directive wheels 8~10 of bicycle brake rubber block.
Described housing 2 upper and lower openings, lateral cross section (in the present embodiment, being illustrated main line of vision cross section) is tapered, has on lower end one sidewall of housing to supply handle 1 to prolong the hole that.
Described connecting rod 5 is fixed in the housing middle by pitman shaft; A brake rubber block pair 7 (having adopted bicycle brake rubber block pair in the present embodiment) is fixed in the upper end of connecting rod, and bottom is provided with a branched shaft.
Described handle 1 right-hand member is connected with housing by little axle, and the left end of handle laterally prolongs outside the housing, and handle is connected by bearing pin and connecting rod are vertical, is the fulcrum rotation with little of right-hand member when spurring handle, and connecting rod moves downward simultaneously.
Described rope sheave 4 floats between a pair of brake rubber block secondary 7 and handle 1.
Described one group of directive wheel 8~10 comprise a pair of be fixed on housing upper end open place and side by side near driven folding wheel 8,9 and be positioned at a circuitous directive wheel 10 below the driven folding wheel.
Described long load-bearing fire prevention rope 3 upwards centered on rope sheave 4, one ends is pulled out by 8,9 above-mentioned on a pair of driven folding wheel, and the other end is derived through circuitous directive wheel 10, by the deadweight of restricting and sagging.
The utility model also designs on two side bodies of rope sheave and is provided with brake block 6.
The utility model machinery high-rise escape apparatus fixedly mounts suspension ring 11 that are used to hang human body below the housing of main slow descending device, can be fixed on the housing wall by the suspension ring axle, and it is good that suspension ring are the U type.
In Fig. 1, when burst fire-disasters such as breaking out of fire, the people can put on the safety harness of establishing fully in addition with an end bolt of rope on indoor fixture (as steam heating pipe, footpost etc.),, climb out of oneself being hung on the U-shaped suspension ring 11 of descending lifeline with the hook on the safety harness from window.This moment, handle 1 was horizontal, and promptly the people does not apply external force to it as yet.Under the effect of people's deadweight, rope sheave 4 is to conical shell 2 little end motions, by with two inclined-planes on the effect of brake block 6, extruding wedging load-bearing fire prevention rope 3 has produced very big frictional force, thereby has stoped rope sheave 4 to rotate, and realizes the auto-lock function of descending lifeline.When this function guaranteed that the operator does not apply external force to descending lifeline, mechanical high-rise escape apparatus can not descend along the load-bearing rope 3 of preventing fires, thus guarantor's safety.
When the people firmly pulls down fixed handle 1, handle 1 moves downward by pitman shaft drivening rod 5, make rope sheave 4 be subjected to downward active force by brake rubber block pair 7, make rope sheave 4 move downward, promptly the big extreme direction towards conical shell 2 moves, and housing 2 and 6 wedging pressure declines to load-bearing fire prevention rope 3 of brake block, frictional force reduces, make that rope sheave 4 can normal rotation, descending lifeline descends with certain acceleration along load-bearing fire prevention rope 3, promptly finishes the function of decline.The mediator just can adjust the speed of decline to the size of handle 1 active force at this moment.
The utility model machinery high-rise escape apparatus structural design be to have considered that human body can not bear the very big speed and the cause of acceleration, so this device should possess the function of slowing down and stopping, promptly decrease speed is controlled.For making simple and convenient use of device, and guarantee safety, then design this device and have above-mentioned auto-lock function, realize self-locking by frictional force.
The control of descending lifeline decrease speed is that the effect by the secondary 7 pairs of rope sheaves 4 of bicycle brake rubber block realizes.When the people firmly pulls down fixed handle 1, handle 1 drivening rod 5 moves downward, connecting rod 5 drives bicycle brake rubber block pair 7 and moves downward simultaneously, this moment, bicycle brake rubber block pair 7 was to pressing down the rope sheave 4 that floats, make the rope sheave 4 that rotates be subjected to the effect of certain frictional force, thereby hindered the rotation of rope sheave 4, rope sheave 4 velocities of rotation reduce, thereby have reduced the decrease speed of descending lifeline.Can control descending lifeline thus evenly descends along certain speed.
In the decline process, when being in an emergency, or because of the panic handle 1 that unclamped that is nervous, descending lifeline can be realized self-locking, stop to descend, so the people does not fall with regard to not meeting accident.So descending lifeline has played the effect of safeguard protection.
The operation principle and the process of the utility model machinery high-rise escape apparatus are: when mechanical high-rise escape apparatus is in off working state, be that the people does not hang on the U type suspension ring 11 by safety harness, this moment, handle 1 was horizontal, rope sheave 4 floats between brake rubber block pair and handle 1, and load-bearing fire prevention rope can freely-movable.Among Fig. 1, when burst fire-disasters such as breaking out of fire, the people will own be hung on the U-shaped suspension ring 11 by safety harness, and rope will be subjected to very big impulsive force this moment, thereby makes rope sheave 4 toward housing 2 little end motions, push load-bearing fire prevention rope 3 this moment, produced very big frictional force on the fire prevention rope 3, down moved, promptly finished the function of self-locking in order to hinder rope sheave 4, this function can guarantee when not applying external force, and mechanical high-rise escape apparatus can not descend along the load-bearing rope 3 of preventing fires.
When firmly pulling down fixed handle 1, handle 1 drivening rod 5 moves downward, rope sheave 4 is subjected to downward active force, make the rope sheave 4 and the pressure of 2 pairs of ropes of housing descend to some extent, thereby frictional force reduces, can guarantee that then descending lifeline descends with certain acceleration along load-bearing fire prevention rope 3, promptly finishes the function of decline.The mediator just can adjust the speed of decline to the size of handle 1 active force at this moment.
In the decline process, staff release handle 1 when being in an emergency, people and descending lifeline just stop to descend because of self-locking, play the effect of safeguard protection.
The various embodiments described above can not break away under the scope of the present utility model in addition some variations, thus above explanation comprises and accompanying drawing shown in structure should be considered as exemplary, but not in order to limit the protection domain that the utility model is applied for a patent.