CN206334226U - A kind of high-rise life-escape slow-falling device based on hydraulic throttle principle rate controlling - Google Patents
A kind of high-rise life-escape slow-falling device based on hydraulic throttle principle rate controlling Download PDFInfo
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- CN206334226U CN206334226U CN201621381728.4U CN201621381728U CN206334226U CN 206334226 U CN206334226 U CN 206334226U CN 201621381728 U CN201621381728 U CN 201621381728U CN 206334226 U CN206334226 U CN 206334226U
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Abstract
High-rise life-escape slow-falling device of the present utility model based on hydraulic throttle principle rate controlling, including housing reel, first piston chamber and second piston chamber, first piston chamber are connected with second piston chamber by oil pipe, and throttle orifice is provided with oil pipe；" crank connecting link " mechanism that reel is constituted by the gear of multigroup combination and by first, second crank gear and first, second connecting rod drives active piston to move back and forth, the reciprocating motion of active piston and relay piston by the transform gravitational energy of personal fall be fluid interior energy, it is ensured that steady, the device descending at constant speed of human body.With simple in construction, small volume, storage, using, it is easy to maintenance, using process it is steady safe the features such as, there is higher use value for high-rise slow descent escape, there is provided effective escape means for the problem of efficiently solving self-help escape after high building calamity.
Description
Technical field
The utility model is related to a kind of high-rise life-escape slow-falling device, in particular, more particularly to a kind of based on hydraulic pressure
The high-rise life-escape slow-falling device of Throttle Principle rate controlling.
Background technology
With the development of society, the progress of Urbanization Construction, the form of building is just gradually to high stratification, the direction of densification
Development.The raising of unit land utilization ratio, alleviates population and increases brought house pressure, but also bring to a certain extent
New security challenge.When the emergency situations such as fire occur, positioned at high-rise personnel it is how quick, steady, it is safety withdraw,
The problem of having to consider as us.Traditional passway for escaping is escaped for the effect very little of high-rise trapped personnel safe escape
Raw speed is excessively slow, cross fire bed the above persons need to pass through the life peace that the unfavorable factors such as pyrotechnics scope seriously threaten disaster affected people
Entirely.
The current main reliable rescue of fire of high-rise building personnel escape and two ways of saving oneself.Utilize and disappear by rescue
The equipment that anti-unit is provided is withdrawn, mostly the heavy mechanical equipment such as motor ladder or rescue helicopters.This mode can be by then
Between and the influence of many factors such as space --- fire units rush towards scene after receiving a crime report and expansion equipment be both needed to certain time and by
It is limited compared with the expansion of large-diameter equipment in building dense degree, can only as failure of saving oneself ultimate guarantee, if wanting to be effectively ensured
Trapped personnel life security, also needs to coordinate and effectively saves oneself.
The mode saved oneself is divided into internal escape and escaped with outside escape two ways, inside in addition to traditional passway for escaping,
A kind of escape mode newly risen at present is more praised highly by people, i.e. slide escape.Its principle is along balustrade cloth
If continuous slideway from top to bottom together, when fire occurs, escape crowd can enter slideway and be slided along it.This method phase
Compared with traditional escape stairs, with withdrawing fireballing advantage, but for crossing fire bed the above persons, equally also need to face to wear
The more situation of pyrotechnics band, it is difficult to ensure the safety of evacuating people.
Compared to internal escape mode, slided from building is outer it is possible to prevente effectively from pyrotechnics is encroached on, for the relatively low people of floor
Rope or Rope ladder for escaping may be selected in member's escape, but for positioned at high-rise personnel, this mode is clearly unpractical, at this moment
It is accomplished by by external equipment.Withdrawn using descending lifeline uniform velocity control device support staff with a safer speed
To ground.
The development and application of speed control unit, being showing improvement or progress day by day and become increasingly advanced with science and technology, increasingly for
People are received, and species is more and more.The speed control method commonly used both at home and abroad in descending lifeline at present is two kinds：Mechanical friction type
With liquid flow damping formula.The former is the purpose that control speed is reached using the frictional force between movable part is increased, common
Type has cornerite plus manual mode, centrifugal friction type, batch impact type；The latter is using liquid flow damping by under user of service
Kinetic energy during drop is converted into heat energy dissipation and fallen, to reach the purpose of the slow drop of rate controlling.
It is due to be tied although existing slow descending device can reach basic use requirement upper to a certain degree
The limitation of structure function, however it remains some shortcomings：Mechanical friction type be difficult to ensure that the use condition of operator's uniform descent and
It may be influenceed during use by reducing gear serious wear or locking, cause gliding speed too fast or stuck, be pacified
Full property is poor；Fluid damping formula is minimum due to the damping under original state, so operator is to start to glide with maximal rate, and
Because temperature rise liquid viscosity reduction causes damped coefficient to reduce during use, the speed control effect of device can also be produced
Raw influence, but relative to mechanical friction type, because this mode realizes that velocity perturbation is smaller and effectively keeps away by flexibility damping
Stuck phenomenon is exempted from.This mode has a mechanism bulky complex simultaneously, manufacture, using, maintenance cost is higher the problem of.
Utility model content
The utility model is in order to overcome the shortcoming of above-mentioned technical problem there is provided a kind of based on hydraulic throttle principle rate controlling
High-rise life-escape slow-falling device.
High-rise life-escape slow-falling device of the present utility model based on hydraulic throttle principle rate controlling, including housing and be arranged at
Wheel shaft is fixed with reel, first piston chamber and second piston chamber in housing, reel, wheel shaft rotates and is arranged at housing
In, be wound with reel be provided with rope, housing for rope pass around line passage；First piston chamber and second piston
Chamber is located at the top of reel, and is wherein respectively arranged with relay piston, active piston；It is characterized in that：The first piston
Chamber is connected with second piston chamber by oil pipe, and the throttle orifice of control slow descending device falling speed is provided with oil pipe；It is actively living
Piston rod is fixed with the lower surface of plug, the lower end of piston rod is fixed with pull bar, and the two ends of pull bar have been respectively articulated with first connecting rod
And second connecting rod；
The first crank gear and the second crank gear being meshed, the first crank gear and first connecting rod are provided with housing
Connection is rotated, the second crank gear is rotated with second connecting rod and is connected；The end of wheel shaft is fixed with first gear, housing and is provided with
It is fixed with the inside of the second gear being meshed with first gear, the first crank gear and is coaxial therewith and is meshed with second gear
The 3rd gear.
High-rise life-escape slow-falling device of the present utility model based on hydraulic throttle principle rate controlling, including left rotary shaft and right-hand rotation
Axle, the left end and right-hand member of left rotary shaft, right spindle by box coupling respectively with wheel shaft is mutually fixed, and left rotary shaft and right spindle are equal
Rotated and be arranged on housing by bearing, first gear is fixed on the outer end for having rotating shaft.
High-rise life-escape slow-falling device of the present utility model based on hydraulic throttle principle rate controlling, the first crank tooth
Wheel, the second crank gear, second gear and the 3rd gear are rotatably arranged on housing by bearing；Use is provided with housing
The wire hole passed in rope.
The beneficial effects of the utility model are：High-rise life-escape slow-falling device of the present utility model, utilizes thin wall small hole pair
The slow drop survival equipment of a brand-new high level is devised in the Throttle Principle of liquid, personnel are dropped through rope and drive reel to turn
During dynamic, what reel was constituted by the gear of multigroup combination and by first, second crank gear and first, second connecting rod
" crank connecting link " mechanism drives active piston to move back and forth, and the reciprocating motion of active piston and relay piston is by the weight of personal fall
Power potential energy is the interior energy of fluid, it is ensured that steady, the device descending at constant speed of human body.With simple in construction, small volume, deposit, make
With, it is easy to maintenance, using process it is steady safe the features such as, there is higher use value, effectively solution for high-rise slow descent escape
There is provided effective escape means the problem of self-help escape after high building calamity of having determined.
Brief description of the drawings
Fig. 1 is the sectional view of high-rise life-escape slow-falling device of the present utility model；
Fig. 2, Fig. 3 be the utility model between reel and active piston transmission mechanism schematic diagram；
Fig. 4 is the structural representation of reel in the utility model；
Fig. 5 is the sectional view outside drawing of high-rise life-escape slow-falling device of the present utility model；
Fig. 6 is the flow schematic diagram that fluid passes through throttle orifice.
In figure：1 housing, 2 reels, 3 first piston chambers, 4 second piston chambers, 5 relay pistons, 6 active pistons, 7 wheel shafts,
8 oil pipes, 9 throttle orifices, 10 around line passage, 11 piston rods, 12 pull bars, 13 first connecting rods, 14 second connecting rods, 15 first gears, 16
Second gear, 17 the 3rd gears, 18 first crank gears, 19 second crank gears, 20 bearings, 21 left rotary shafts, 22 right spindles, 23
Box coupling, 24 pins, 25 wire holes.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, giving the sectional view of high-rise life-escape slow-falling device of the present utility model, Fig. 2 and Fig. 3 give
In the utility model between reel and active piston transmission mechanism schematic diagram, shown lowering or hoisting gear is by housing 1, reel
2nd, first piston chamber 3, second piston chamber 4, active piston 6, relay piston 5, wheel shaft 7, oil pipe 8 and transmission mechanism composition, institute
The inside for showing housing 1 is cavity, and reel 2 is located at the bottom of the internal cavities of housing 1, and reel 2 is fixed on wheel shaft 7, wheel shaft 7
Be rotatably arranged on housing 1, be wound with reel 2 be provided with rope, housing 1 for rope pass around line passage
10.First piston chamber 3 and second piston chamber 4 are located at the top of reel 2, and are disposed adjacent, relay piston 5 and active piston 6
It is located at respectively in first piston chamber 3 and second piston chamber 4.
Shown first piston chamber 3 is connected with second piston chamber 4 by oil pipe 8, and throttle orifice 9 is provided with oil pipe 8, when
When active piston 6 moves to highest (minimum) position in second piston chamber 4, relay piston 5 moves to minimum in first piston chamber 3
Fluid is filled with (highest) position, first piston chamber 3, second piston chamber 4 and oil pipe 8.In fluid by first piston chamber and
Between two plunger shafts during reciprocal flowing, pass through the throttling of throttle orifice 9 so that active piston 6 and relay piston 5 are with certain
Speed easy motion, and then ensure the steady decline of rope.
The output of shown wheel shaft 7 is connected through transmission mechanism with active piston 6, shown first gear 15 and wheel shaft 7
One end is mutually fixed, and first gear 15 is meshed with second gear 16, and second gear 16 is fixed on housing 1 by bearing, to protect
Demonstrate,prove freely rotating for second gear 16.Second gear 16 is meshed with the 3rd gear 17, the 3rd gear 17 and the first crank gear
18 are mutually fixed, and the 3rd gear 17 is coaxially disposed with the first crank gear 18.So, in the rotation process of reel 2, first is passed through
Gear 15, second gear 16, the transmission of the 3rd gear 17, you can drive the first crank gear 18 to rotate.
The first shown crank gear 18 is meshed with the second crank gear 19, and size and dimension is identical, and first is bent
The crank gear 19 of handle gear 18 and second is rotatably arranged on housing 1 by bearing.It is fixed with the lower surface of active piston 6
The lower end of piston rod 11 is fixed at piston rod 11, the middle part of pull bar 12.The lower end of first connecting rod 13 by pin rotationally with
First crank gear 18 is connected, and upper end is articulated with one end of pull bar 12；The lower end of second connecting rod 14 is rotatable also by pin
Ground is connected with the second crank gear 19, and upper end is articulated with the other end of pull bar 12.So so that the first crank gear 18 and
One connecting rod 13 and the second crank gear 19 and second connecting rod 14 form " crank connecting link " structure, so as to by the rotation of reel 2
The dynamic upper and lower reciprocating motion for being converted into active piston 6 of transhipment.
As shown in figure 5, giving the sectional view outside drawing of high-rise life-escape slow-falling device of the present utility model, shown shell
The top of body 1 is provided with wire hole 25, so as to which the rope being wound on reel 2 is passed.In use, the rope passed is fixed
In on the wall of skyscraper or other firm components, the safety belt or load bearing equipment that housing 1 coordinates with human body are mutually fixed, with people
Body falls together.
In system operation process, the gyration at reel 2 is transferred at piston and is translated into by transmission mechanism
Linear reciprocating motion, and then act on internal closing fluid and circulated between two hydraulic cylinders, by throttling in flow process
At hole 9, throttle orifice limits the piston speed of service by the fluid flow passed through in restricted unit time, is entered by transmission mechanism
And the speed of service to whole system is limited, delay the purpose of drop to reach that user of service is slowed down.
As shown in fig. 6, the flow schematic diagram that fluid passes through throttle orifice is given, in the pipeline of hydraulic system, for logical
The part of flow section sudden contraction, referred to as throttling arrangement, the liquid stream of contraction place are referred to as throttling.Hydraulic system according to use requirement not
Realize that throttling is required using various forms of apertures together.Frequently with form throttled for thin wall small hole and elongated hole, compare
Both restriction characteristics, due to unrelated by the flow of thin wall small hole and the viscosity of fluid, i.e., liquid flowed through and caused at small holes
Oil liquid temperature rise viscosity to reduce influence to the change of flow smaller, it is adaptable to in equipment running process in the design
The requirement of stationarity, therefore use the throttling form of Circular Thin aperture.
The throttle orifice computational methods of high-rise life-escape slow-falling device of the present utility model based on hydraulic throttle principle rate controlling,
Realized by following steps：
A) parameter settings；If the internal diameter of oil pipe is D, the diameter units d of throttle orifice, cross-sectional area are A, and fluid is through throttling
The a diameter of d for the contracted section that hole is formed2, cross-sectional area be A0；If fluid is p by the pressure before throttle orifice1, shrink and cut
Oil liquid pressure at face is p2；
If the length of pull bar is e, the length of first connecting rod and second connecting rod is l, the centre distance of the first crank gear
The distance that first connecting rod is connected thereto distance a little, the centre distance second connecting rod of the second crank gear is connected thereto a little is R；
Then pass through equation below defined parameters b1、b2、b3、S：
S=b1-b2
Wherein, b1Pull bar is away from the first crank gear or the second crank gear center when being in upper extreme position for active piston
Distance, b2Distance of the pull bar away from the first crank gear or the second crank gear center, b when being in lower limit position for piston3For
Distance of the pull bar away from the first crank gear or the second crank gear center during any instantaneous position of piston, S is piston stroke, and θ is
Angle between first connecting rod or second connecting rod and horizontal line；
B) sets up Bernoulli equation, and to fluid, the state of throttle orifice is analyzed in oil pipe, sets up such as formula (1) institute
The Bernoulli equation shown：
Wherein, v1Pass through the speed before throttle orifice, v for fluid2For the speed of fluid at contracted section；
For actual size, because the internal diameter D of oil pipe is much larger than the diameter d of throttle orifice so that v1＜ ＜ v2, omit
Formula contains v in (1)1Item, can obtain：
Wherein, CvFor velocity coeffficient,
C) seeks flow at contracted section, and the flow q at contracted section is asked for according to formula (3)：
Wherein, Cd=CvCc, CdFor aperture discharge coefficient, CcFor constriction coefficient, its implication is as follows：
D) calculates the flow that piston is produced, if the safe speed declined using slow descending device is v0, declined using rope
Speed v0The average speed of active piston motion is asked for, Z, v is set to0=0.8~1.2m/s；The flow q ' that then piston movement is produced
For：
Q '=π r2·S·2Z (4)
Wherein, r is the radius of active piston, and S is piston stroke；
E) asks for the area of throttle orifice, and the area that combinatorial formula (3) and (4) can ask for throttle orifice is：
According to the area for the throttle orifice asked for, you can calculate the diameter of throttle orifice.
The pressure p1When taking the active piston (6) to move to least significant end, centre position produced by the front of throttle orifice
The average value of pressure, pressure p2Pressure is produced at contracted section when taking active piston (6) to move to least significant end, centre position
Average value；v1When taking the active piston (6) to move to least significant end, centre position produced by the front of throttle orifice flow velocity it is flat
Average, v2The average value of flow velocity is produced when taking active piston (6) to move to least significant end, centre position at contracted section；
If the weight of user is mg, fluid passes through the instantaneous pressure value p before throttle orifice1' be：
Wherein, RaFor the radius of reel, SeFor the active area of piston；
The efficiency of tubing system is expressed as at throttle orifice：
Wherein, ∑ Δ p is the loss of total pressure in oil pipe, and it is asked for by equation below：
Wherein, λ is frictional resistant coefficient, under turbulence state, Reynolds numberTake
Δ is the roughness of tubing wall, if copper pipe, 0.0015~0.01mm of Δ.
Claims (3)
1. a kind of high-rise life-escape slow-falling device based on hydraulic throttle principle rate controlling, including housing（1）Be arranged in housing
Reel（2）, first piston chamber（3）With second piston chamber（4）, wheel shaft is fixed with reel（7）, wheel shaft rotate be arranged at
In housing, be wound with reel be provided with rope, housing for rope pass around line passage（10）；First piston chamber and
Second piston chamber is located at the top of reel, and is wherein respectively arranged with relay piston（5）, active piston（6）；Its feature exists
In：The first piston chamber passes through oil pipe with second piston chamber（8）It is connected, terminal-velocity under control slow descending device is provided with oil pipe
The throttle orifice of degree（9）；Piston rod is fixed with the lower surface of active piston（11）, the lower end of piston rod is fixed with pull bar（12）,
The two ends of pull bar have been respectively articulated with first connecting rod（13）And second connecting rod（14）；
The first crank gear being meshed is provided with housing（18）With the second crank gear（19）, the first crank gear and first
Link rotatable is connected, and the second crank gear is rotated with second connecting rod and is connected；The end of wheel shaft is fixed with first gear（15）, housing
In be provided with the second gear being meshed with first gear（16）, it is fixed with the inside of the first crank gear and is coaxial therewith and with
The 3rd gear that two gears are meshed（17）.
2. the high-rise life-escape slow-falling device according to claim 1 based on hydraulic throttle principle rate controlling, it is characterised in that：
Including left rotary shaft（21）And right spindle（22）, left rotary shaft, right spindle by box coupling respectively with wheel shaft（7）Left end and
Right-hand member is mutually fixed, and left rotary shaft and right spindle pass through bearing（20）Rotation is arranged at housing（1）On, first gear（15）It is fixed on
There is the outer end of rotating shaft.
3. the high-rise life-escape slow-falling device according to claim 1 or 2 based on hydraulic throttle principle rate controlling, its feature exists
In：First crank gear（18）, the second crank gear（19）, second gear（16）With the 3rd gear（17）Pass through bearing
It is rotatably arranged in housing（1）On；The wire hole passed for rope is provided with housing（25）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621381728.4U CN206334226U (en) | 2016-12-16 | 2016-12-16 | A kind of high-rise life-escape slow-falling device based on hydraulic throttle principle rate controlling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621381728.4U CN206334226U (en) | 2016-12-16 | 2016-12-16 | A kind of high-rise life-escape slow-falling device based on hydraulic throttle principle rate controlling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206334226U true CN206334226U (en) | 2017-07-18 |
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ID=59301754
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621381728.4U Expired - Fee Related CN206334226U (en) | 2016-12-16 | 2016-12-16 | A kind of high-rise life-escape slow-falling device based on hydraulic throttle principle rate controlling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206334226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433407A (en) * | 2019-07-22 | 2019-11-12 | 于珍 | One kind high empty buffer escape for building and pressurization flusher |
-
2016
- 2016-12-16 CN CN201621381728.4U patent/CN206334226U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433407A (en) * | 2019-07-22 | 2019-11-12 | 于珍 | One kind high empty buffer escape for building and pressurization flusher |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20171216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |