CN2330372Y - Lifesaving slowly-falling equipment - Google Patents
Lifesaving slowly-falling equipment Download PDFInfo
- Publication number
- CN2330372Y CN2330372Y CN 98227293 CN98227293U CN2330372Y CN 2330372 Y CN2330372 Y CN 2330372Y CN 98227293 CN98227293 CN 98227293 CN 98227293 U CN98227293 U CN 98227293U CN 2330372 Y CN2330372 Y CN 2330372Y
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- CN
- China
- Prior art keywords
- centrifugal
- gear
- driving gear
- centrifugal pan
- base plate
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Abstract
The utility model relates to the lifesaving slowly-falling equipment, which is mainly used for the self saving in high buildings. The lifesaving slowly-falling equipment comprises ropes, hooks, a casing, a bottom plate; driving gears and a speed increasing mechanism which are arranged in the casing; a centrifugal block brake mechanism which is composed of a centrifugal disc, centrifugal blocks which are arranged in the centrifugal disc and can carry out radial sliding freely in the centrifugal disc and damping hubs which are arranged on the outer side of the centrifugal disc. The driving gear is wound with the rope and drives the centrifugal block brake mechanism via the speed increasing mechanism; the knurling is arranged on the inside surface of a U-shaped slot of the driving gear so the security is enhanced; the initial resistance of the system is increased by increasing stretching shaft pins, and the stationarity in use is enhanced. The structure is simplified by changing the structure of the speed increasing mechanism.
Description
The utility model relates to a kind of lifesaving descent control device that is mainly used in high-building self-help, belongs to high altitude rescue and work high above the ground technique with the apparatus field.
In the prior art, this type of lifesaving descent control device is formed by rope, hook, housing, base plate and driving gear, speed increasing mechanism, centrifugal this three part of arrestment mechanism.A wherein centrifugal arrestment mechanism is made up of centrifugal that can do radially to be free to slide in centrifugal pan, the centrifugal pan, the damping wheel hub in the centrifugal pan outside.When the lifesaver descends, when the direct bearing rope is walked around driving gear it is rotated, and the centrifugal pan that drives in the centrifugal arrestment mechanism by speed increasing mechanism rotates, increase (lifesaver's decline acceleration is an acceleration of gravity) along with lifesaver's decrease speed, centrifugal outwards flies out under action of centrifugal force and produces frictional resistance with the damping wheel hub in the centrifugal pan outside, this resistance also increases gradually, and forces driving gear to slow down, lifesaver's decrease speed thereby at certain scope (V
Low-V
High) interior fluctuation, preserve from when contacting to earth to guarantee the lifesaver.Domestic relevant standard code, the load of single lifesaving descent control device are 25-100kg, and the downhill race velocity interval is 0.16-1.5m/s.
Immediate prior art 95 2 44667.7 (day for announcing 96.10.23) also is a said structure.Its speed increasing mechanism is by internal gear, two secondary gear transmission speed increasing mechanisms that carrier gear, central gear are formed.Its speed increasing mechanism complex structure.Bigger weak point is that its security is not enough, does not meet national standard, is embodied in:
The possibility that 1, slip is arranged between rope and driving gear.Driving gear U-lag medial surface of the prior art is an even surface.Speed was fast when the lifesaver descended, impulsive force is big, and used rope the coefficient of friction than belt is little again, even therefore the possibility of skidding in addition when belt and belt pulley transmission exists centrifugal locking and possibility of rope slipping, become the potential safety hazard of maximum.
2, the starter system resistance of lifesaving descent control device is little.This resistance be in the machine driving roller and the axle between frictional force, can ignore.That is to say that when load was very little, also the stretchy rope did not meet the national standard that load is 25-100kg.
3, little another problem brought of the starter system resistance of lifesaving descent control device period of waves that is decrease speed short, vibration frequency from.This is because the lifesaver is very fast after beginning to descend centrifugal arrestment mechanism to be worked, and its decrease speed is very fast by V
HighReduce to V
Low, at this moment, throw off the damping wheel hub for centrifugal, decrease speed is very fast again by V
LowRise to V
HighThe lifesaver is far from suitable.
The utility model is intended to overcome above-mentioned deficiency, provides a kind of security performance good lifesaving descent control device.
Further purpose of the present utility model is to provide a kind of security performance good and use stationarity good and meet the lifesaving descent control device of national standard.
Of the present utility model more further purpose be to provide a kind of simple in structure and lifesaving descent control device that can achieve the above object.
Inventive concept of the present utility model is:
1, changes the structure of driving gear, increase the frictional force of rope and driving gear, guarantee that under any circumstance, rope is non-slip.
2, by increasing the initial resistance that the varicose pivot pin increases system.
3, by changing the designs simplification structure of driving gear, speed increasing mechanism.
Specifically, the purpose of this utility model is to be reached by following technical scheme: a kind of lifesaving descent control device, the centrifugal arrestment mechanism that comprises driving gear in rope, hook, housing, base plate and the housing, speed increasing mechanism, forms by centrifugal that can do radially to be free to slide in centrifugal pan, the centrifugal pan, the damping wheel hub in the centrifugal pan outside, wherein rope is walked around driving gear, when it spurs, driving gear rotates by the centrifugal pan that speed increasing mechanism drives in the centrifugal arrestment mechanism, and it is characterized in that: described driving gear is the gear of U-lag medial surface annular knurl.
Further technical measures of the present utility model are as follows: described base plate is provided with a plurality of varicose pivot pins, must walk around each varicose pivot pin when its position makes rope walk around driving gear.
Of the present utility model further technical measures are as follows again: driving gear of the present utility model is that three isodiametric and its axle center are equilateral triangle and are distributed in gear wheel on the base plate, on the equilateral triangle center that three gear wheels form, also has a pinion, this pinion and three gear wheels all mesh, and said gear all is positioned at the same side of base plate.At the opposite side of base plate, the centrifugal arrestment mechanism of being made up of centrifugal that can do radially to be free to slide in centrifugal pan, the centrifugal pan, the damping wheel hub in the centrifugal pan outside is housed.Wherein, centrifugal pan is coaxial with pinion.
Owing to taked above structure, the utility model is simple in structure, and is safe in utilization, steady.
Below with reference to drawings and Examples the utility model is described in further details:
Accompanying drawing 1 is the structural representation (front view) of the utility model embodiment.
Accompanying drawing 2 is the left view of accompanying drawing 1 embodiment that looks.
Each sequence number is respectively in the accompanying drawing: 1, hook; 2, base plate; 3, housing; 4, lid; 5, gear wheel; 6, axle; 7, pinion; 8, cover; 9, rivet; 10, safety belt; 11, damping wheel hub; 12, centrifugal; 13, carriage; 14, centrifugal wheel; 15, flat key; 16, rivet; 17, lid; 18, rope; 19, guide wheel; 20, varicose pivot pin.
Referring to accompanying drawing 1, accompanying drawing 2, the centrifugal arrestment mechanism that the utility model comprises in rope, hook, housing, base plate and the housing three gear wheels, pinion, is made up of centrifugal that can do radially to be free to slide in centrifugal pan, the centrifugal pan, the damping wheel hub in the centrifugal pan outside.Base plate among Fig. 1 (2) side has elliptical aperture, the hook that is used for fixing (1) is through at wherein, housing (3), damping wheel hub (11) connects as one with base plate (3) by rivet (9) and cover (8), lid (4) and lid (7) are connected on housing (3) and the damping wheel hub (11) with screw respectively, the inboard annular knurl of gear wheel (5), the axle (6) of supporting gearwheel (5) (three) is fixed on housing (3) and the lid (4), pinion (7) is positioned on the equilateral triangle center of three gear wheels formation, and be bearing on lid (4) and the lid (17), it and three gear wheels all mesh, the gearratio of big pinion is 70: 14, coaxial by cover (8) assurance lid (4) and lid (17) center, centrifugal (12) can radially be free to slide by carriage (13) supporting.Carriage (13) is connected and fixed by rivet (16) and centrifugal wheel (14), centrifugal wheel (14) is connected with pinion (7) by flat key (15), the mandrel of guide wheel among Fig. 2 (19) and varicose pivot pin (20) are fixed on housing (3) and the lid (4), rope (18) is around between gear wheel (5), guide wheel (19) and the varicose pivot pin (20), and all there is safety belt (10) at two ends.When the lifesaver descends, when the direct bearing rope is walked around gear wheel it is rotated, pinion mate and then drive centrifugal centrifugal pan in the arrestment mechanism and rotate, increase along with lifesaver's decrease speed, centrifugal outwards flies out under action of centrifugal force and produces frictional resistance with the damping wheel hub in the centrifugal pan outside, and this resistance also increases gradually, and forces driving gear to slow down, lifesaver's decrease speed thereby fluctuate in certain scope preserves from when contacting to earth to guarantee the lifesaver.
The varicose pivot pin (20) that is provided with two Φ 8 diameters in the utility model makes rope (18) varicose increase system's initial resistance, and centrifugal heavily is 549, and the utility model starter system resistance is 23.5N.After tested, downhill race velocity interval is 0.16-1.5m/s.
Claims (4)
1, a kind of lifesaving descent control device, the centrifugal arrestment mechanism that comprises driving gear in rope, hook, housing, base plate and the housing, speed increasing mechanism, forms by centrifugal that can do radially to be free to slide in centrifugal pan, the centrifugal pan, the damping wheel hub in the centrifugal pan outside, wherein rope is walked around driving gear, when it spurs, driving gear rotates by the centrifugal pan that speed increasing mechanism drives in the centrifugal arrestment mechanism, and it is characterized in that: described driving gear is the gear of U-lag medial surface annular knurl.
2, lifesaving descent control device according to claim 1 is characterized in that: described base plate is provided with a plurality of varicose pivot pins, must walk around each varicose pivot pin when its position makes rope walk around driving gear.
3, according to claim 1 or 2 arbitrary described lifesaving descent control devices, it is characterized in that: described driving gear is that three isodiametric and its axle center are equilateral triangle and are distributed in gear wheel on the base plate, on the equilateral triangle center that three gear wheels form, also has a pinion, this pinion and three gear wheels all mesh, said gear all is positioned at the same side of base plate, opposite side at base plate, be equipped with by centrifugal pan, can do radially to be free to slide in the centrifugal pan centrifugal, the centrifugal arrestment mechanism that the damping wheel hub in the centrifugal pan outside is formed, described centrifugal pan is coaxial with pinion.
4, lifesaving descent control device according to claim 3 is characterized in that: the gearratio of described gear wheel and pinion is 70: 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227293 CN2330372Y (en) | 1998-07-04 | 1998-07-04 | Lifesaving slowly-falling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227293 CN2330372Y (en) | 1998-07-04 | 1998-07-04 | Lifesaving slowly-falling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2330372Y true CN2330372Y (en) | 1999-07-28 |
Family
ID=33977630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227293 Expired - Fee Related CN2330372Y (en) | 1998-07-04 | 1998-07-04 | Lifesaving slowly-falling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2330372Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988935B (en) * | 2005-03-09 | 2010-12-08 | 米特尔曼安全技术有限责任公司 | Abseiling device having a winch function |
| CN102872545A (en) * | 2012-10-29 | 2013-01-16 | 裘伟江 | High-altitude descent control device |
-
1998
- 1998-07-04 CN CN 98227293 patent/CN2330372Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988935B (en) * | 2005-03-09 | 2010-12-08 | 米特尔曼安全技术有限责任公司 | Abseiling device having a winch function |
| CN102872545A (en) * | 2012-10-29 | 2013-01-16 | 裘伟江 | High-altitude descent control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |