CN2592199Y

CN2592199Y - Escaping apparatus

Info

Publication number: CN2592199Y
Application number: CN 02264928
Authority: CN
Inventors: 季建刚; 蒋维钢; 丁炜; 王强
Original assignee: Inst No704 General Inst No7 Chinese Co Of Ship Building And Heavy Industrie
Current assignee: Inst No704 General Inst No7 Chinese Co Of Ship Building And Heavy Industrie
Priority date: 2002-06-21
Filing date: 2002-06-21
Publication date: 2003-12-17
Anticipated expiration: 2012-06-21

Abstract

The utility model relates to an escaping device which relates to a rope falling device and mainly solves the technical problems of simplified structure, etc. The utility model has the technical proposal that the periphery of the wall of an inner cavity of a casing is uniformly distributed and contacted with a set of centrifugal friction blocks; each centrifugal friction block is sheathed on a rotary wheel component, is interlocked with the rotary wheel component and forms reciprocating sliding fit with the rotary wheel component. The utility model is suitable for escape of various buildings.

Description

Escape device

Technical field:

The utility model relates to and a kind ofly falls people's device from building or analog, and is particularly a kind of with the rope falling unit.

Background technology:

Along with the development of society and the raising of up-to-dateness, urbanization process is accelerated, building especially skyscraper quantity increases severely, bring the safety problem of personnel in the skyscraper thereupon, as fire, earthquake and other accidents thereof, how to flee from high building rapidly safely, it is the major issue that needs to be resolved hurrily, for this reason, industry developed escape device miscellaneous, but because these scenario-frame complexity, cost an arm and a leg, be difficult to be promoted the use of, on this basis, through updating, some escape devices have preferably appearred on market, as Korean Products, Fig. 4 is the base plate and the built-in drive mechanism schematic diagram of shell of this product, include brake pad 3 ', friction housing 3 "; centrifugal runner 5 '; speedup level 8; pulley 54 ' and lifting rope assembly 7 ' wait member; its operation principle is; the gravity when nationality people or weight descend, rotate through lifting rope assembly 7 ' drive pulley 54 ', pulley 54 ' drives centrifugal runner 5 ' through speedup level 8 and does rotation at a high speed, centrifugal runner 5 ' drives brake pad 3 ' rotation at a high speed, at this moment, brake pad 3 ' produces centrifugal force, and and is fixed in the friction housing 3 of shell " between produce strong friction; when the moment that produces when moment that frictional force produced and gravity is identical; people or weight just can remain a constant speed and descend and safe landing, and still, still there is following point in this structure:

1, built-in friction housing 3 "; determine that its size can not be too big; otherwise can make the size of whole escape device increase to the unacceptable degree of user; its diameter is 1/2～1/3 of a housing diameter usually; and the required moment of friction of counterbalance moment is a definite value; when brake pad 3 ' radius of turn was limited, then requiring had higher rotary speed, to produce enough moment of frictions;

2, big pulley 54 diameters when promptly gravity is constant, are shown with big gravitational moment in advance, thereby require to have the rotary speed of bigger brake pad 3 ';

3, for producing enough moment of frictions, in structure, be provided with the drive mechanism of speedup level 5 ';

4, the brake pad of the existence of speedup level and rotation at a high speed all makes the operational reliability of device descend;

5, the structure of more complicated increases manufacturing cost.

The utility model content:

The technical problems to be solved in the utility model is, a kind of improved escape device is provided, and it can make simplified, reliable operation, and can reduce manufacturing cost.

The technical scheme in the invention for solving the above technical problem is: evenly distributing around the chamber wall portion has in the enclosure touched one group of centrifugal friction piece, each centrifugal friction piece is set on the wheel set assembly, and and wheel set assembly be the cooperation linkage that reciprocatingly slides, the wheel body top sheave mortise inboard of wheel set assembly has anti-skidding impeller line.

Its shell inner cavity of the utility model mat is a rubbing surface, both simplified structures, overcome the little defective of traditional structure rubbing surface diameter again, adopt the minor diameter pulley structure of simplifying simultaneously, make the centrifugal friction piece of rotation can reach required trimming moment with lower rotary speed, in structure, do not re-use the speedup transmission, simplified structure strengthens reliability, reduces manufacturing cost.

Description of drawings:

Fig. 1 is the utility model escape device longitudinal section.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 is the utility model drive mechanism schematic diagram.

Fig. 4 is the running part schematic diagram of traditional structure.

The specific embodiment:

With reference to Fig. 1, Fig. 2, Fig. 3, the utility model escape device includes base plate 1, shell 2, friction component and lifting rope assembly 7.

Base plate 1, make by steel plate or similar material sheet material, it is the support body of the whole members of device, top at base plate 1 just is being formed with an overhang, one hook on hole 11 is arranged on it, connect safety door hook during for use escape device is hung on the attached body that is located at building, base plate 1 is provided with the through hole that can set firmly installation shaft 6.

Shell 2, be the open containers shape, make by steel plate or similar material sheet material, its opening part is formed with flange, offers plurality of through holes on the flange, supplies the hold-down screw of base plate 1 and shell to wear, the internal chamber wall cylindraceous portion 21 of shell 2 is a barrel surface, be used as fricting working surface, shell 2 is provided with opening below relative base plate 1 overhang, and this opening can ccontaining lifting rope assembly 7.

Friction component includes centrifugal friction piece 3, spring 4, wheel set assembly 5 and dress axle 6 is installed, wherein:

Centrifugal friction piece 3, be fan-shaped bulk or other similar geometric, make by copper material, its quantity can be 2～6 and does not wait, and along circumferential even distribution, the extrados radius of centrifugal friction piece 3 is identical with the internal diameter of shell 2 internal chamber wall portions 21, uses to be formed with good being slidingly matched and to touch, middle part at centrifugal friction piece 3 is provided with mating holes, and this mating holes and connecting rod 51 are and are slidingly matched.

Spring 4, can be set in the outboard end of connecting rod 51, the one end is held in the convex shoulder of connecting rod 51, its other end is held in centrifugal friction piece 3, spring 4, centrifugal friction piece 3 is sheathed on connecting rod 51, after the internal chamber wall portion 21 of inserting shell 2, the design of these spring 4 length guarantees under this assembled condition, spring 4 is its pre-compressed state, be that its precompressed elastic force of spring 4 mats touches centrifugal friction piece 3 roof pressures in shell 2 internal chamber wall portions 21, and make centrifugal friction piece 3 still can keep good fit when just making state (not rotating) by this with internal chamber wall portion 21 non-, make simultaneously its enter can be good after the duty startup and operation.

Wheel set assembly 5 includes connecting rod 51, wheel body 52, axle sleeve 53, connecting rod 51 evenly is installed in wheel body 52 or connecting rod 51 and wheel body 52 radially and is one, its quantity is corresponding identical with centrifugal friction piece 3, connecting rod 51 tops are stretched into the mating holes of centrifugal friction piece 3 and are slidingly matched, be that connecting rod 51 drives 3 rotations of centrifugal friction piece, centrifugal friction piece 3 produces centrifugal force and gets rid of the internal chamber wall portion 21 of pressing in shell 2 outward; Be installed with axle sleeve 53 on the centre bore of wheel body 52, axle sleeve 53 is set on the installation shaft 6, and is and is slidingly matched; Installed pulley groove 54 on the wheel body 52, wheel body 52 top sheave grooves 54 inboards have the impeller line that prevents iope slippage.The utility model adopts the design of truckle groove 54, the internal diameter of shell 2 internal chamber wall portions 21 and the ratio of pulley groove 54 external diameters are remained in the suitable scope, to adapt to different demands, by this, can make device obtain the moment of friction of required aequum moment, to keep people or weight constant speed to descend, designs simplification and scantling are reduced;

Installation shaft 6, its two ends are fixedly arranged on base plate 1 and shell 2 respectively.

Lifting rope assembly 7 includes rope 71 and guide wheel group 72 and bearing pin 73, rope 71 is made by high strength and high temperature resistant material, and rope 71 stretches into from guide wheel group 72, and solderless wrapped connection is at bearing pin 73, pulley groove 54, pass from guide wheel group 72, its length is to be set by the differing heights of building again; Guide wheel group 72 is positioned at device below, and it is provided with keeping rope 71 going out the smooth motion of Inbound, and 73 of lock shafts can keep rope 71 solderless wrapped connection approach to be formed on having big cornerite on the pulley groove 54, use the necessary moment of friction of generation.

During use, device is hung on the annex of building, people or weight system descends after being connected to an end of rope 71, at this moment, rope will be done the acceleration of gravity motion under the gravity effect, rope 71 drives wheel body 52 through pulley groove 54 and does the acceleration rotation, centrifugal friction piece 3 is rotated also and the 21 generation frictions of internal chamber wall portion through wheel set assembly 5 thereupon, this moment of friction forms the moment of reaction of gravitational moment on the pulley groove 54, and the acceleration of rope 71 is big more, and this moment of reaction is also big more, contrast design through two moment numerical value, can make two moments reach balance, thereby make rope 71 can do the constant speed descending motion, and the utility model has been got rid of attachment design such as speedup level (gear drive level) and relevant fixed support thereof, and adopt the small size pulley groove simultaneously, make simplified, functional reliability improves, and cost reduces.

Claims

1, a kind of escape device is made up of base plate, shell, friction component and lifting rope assembly, and shell is fixed in base plate, and friction component is installed on shell inner cavity and the base plate, and the lifting rope assembly is set around friction component and is extended through shell, it is characterized in that:

A. evenly distribute all around in shell (2) internal chamber wall portion (21) and touched one group of centrifugal friction piece (3);

B. each centrifugal friction piece (3) is set on the wheel set assembly (5), and is the cooperation linkage that reciprocatingly slides with wheel set assembly;

C. wheel body (52) top sheave mortise (54) inboard of wheel set assembly (5) has anti-skidding impeller line.

2, escape device according to claim 1 is characterized in that wheel set assembly (5) evenly is laid with the connecting rod (51) identical with centrifugal friction piece (3) quantity, and centrifugal friction piece (3) is slidingly located on the connecting rod (51).

3, escape device according to claim 1, the quantity that it is characterized in that centrifugal friction piece (3) is 2～6.

4, according to claim 1 or 3 described escape devices, each connecting rod (51) outboard end that it is characterized in that wheel set assembly (5) is arranged with a spring (4) respectively, spring (4) one ends are held in the convex shoulder of connecting rod (51), spring (4) other end is held in centrifugal friction piece (3), and spring (4) is its pre-compressed state and holds centrifugal friction piece (3) and touch in shell (2) internal chamber wall portion (21).