CN1175470A - Device for rescuing from high building during fire - Google Patents
Device for rescuing from high building during fire Download PDFInfo
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- CN1175470A CN1175470A CN 96119608 CN96119608A CN1175470A CN 1175470 A CN1175470 A CN 1175470A CN 96119608 CN96119608 CN 96119608 CN 96119608 A CN96119608 A CN 96119608A CN 1175470 A CN1175470 A CN 1175470A
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- high building
- control valve
- rescuing
- valve body
- spool
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Abstract
A lifesaving apparatus for fire accident of high building can be used to deliver persons from high building to ground fast and safely by installing it to the wall above window or balcony, and is composed of shell, reel, steel cable connected to safe waist bands and hydraulic system that consists of hydraulic pump, filter, flow control valve with two parallel chocks, oil tank and flame-retardent hydraulic medium. Said reel is engaged via drive gear set with hydraulic pump. Its advantages is that the speed can be controlled when person moves from building to ground.
Description
The present invention relates to a kind ofly in high-rise under the emergency situation such as breaking out of fire, personal security is delivered in the building device for rescuing from high building during fire on ground.
At present, hotel, restaurant, residential building building contour level building, in breaking out of fire, outlet, when passage is shut by fire, can only wait for extraneous rescue, as fire fighter, motor ladder etc., because of arriving, the fire fighter needs the regular hour, add that again aerial ladder is subjected to the influence of height and terrain and its features, therefore, rescue speed is slow, and people often wait less than rescue and arrive, and jumps out of the building among the moment of desperation and causes the accident of injures and deaths of common occurrence; Retrieve the brucker survival capsule of several forms from Chinese patent gazette, owing to be same decrease speed from start to finish, and this speed is very fast, after drawing steel wire rope with the hand examination and fastening seat belts, the user breaks away from the process of building, the drag characteristic of existing brucker survival capsule performance is very soft, and user's body weight one is added on brucker survival capsule, and steel wire rope just stretches downwards fast, make the user produce the feared state of mind, do not have the sense of security.May after steel wire rope is drawn in examination, abandon using, even take a risk to use, in the process that breaks away from building also may because of above steel wire rope be in soft state and meet accident, or enter the decline state to cut out the form of going down; Although the device that Artificial Control speed is housed that has need in advance the user to be carried out special training, and concerning the mobile personnel in hotel, restaurant, it is impossible giveing training in advance.Even carry out the user that precondition is crossed, also may be panic under state of necessity and can not carry out correct operation, so that in the process that descends, cause danger because of speed is out of control.
The objective of the invention is: consider user's psychology when state of necessity, provide a kind of when in high-rise, causing danger, can safely and fast personnel in the high building be delivered to ground, allow user's reliable device for rescuing from high building during fire that at the beginning of using, feels safe.Its initial decrease speed is extremely slow, keeps after a period of time automatically accelerating to desin speed and remaining unchanged by ashamed.
The technical scheme that realizes the object of the invention is, the present invention includes reel, be connected with the steel wire rope of lap belt, driving gear set and the hydraulic system of being made up of hydraulic pump, filter, the parallel flow control valve of binodal head piece, fuel tank and anti-combustion hydraulic medium oil-in-water emulsion all are loaded in the housing; Reel connects with the hydraulic pump engagement by driving gear set, and the hydraulic pressure delivery side of pump is serially connected with filter, the parallel flow control valve of binodal head piece successively, and places in the confined space of adiabatic sealing gasket and fuel tank formation; Be filled with heat-insulating material between fuel tank and the housing.
The above-mentioned parallel flow control valve of binodal head piece is a particular design, comprises spool, spring, left end cap, valve body, check valve.Spool and spring are contained in the A chamber that is made of left end cap and valve body, two cavitys about spool is divided into the A chamber; Chamber, a left side communicates with oil-in by the runner on the left end cap; End, right chamber has the very little restriction of an area of passage to communicate with fuel tank; Spool is positioned at A chamber left end under the spring force effect when oil-in pressure is zero; There are the annular channel of a logical fuel tank, the obstructed right chamber of this runner in the valve body middle part; The end of spool has triangular groove, when under the effect of spool at input pressure when initial position moves right, hydraulic medium enters left chamber from oil-in, right chamber medium flows back to fuel tank through end, right chamber restriction; When in the runner scope that spool moves to right, the triangular groove of its end moves on to valve body middle part, its triangular groove and valve body form a settable orifice at this runner place, the runner at left chamber and valve body middle part is connected, and hydraulic medium is through the runner oil sump tank at oil-in, left chamber, settable orifice, valve body middle part.
Two restrictions are to be positioned at two independently on the oil circuit, be connected in parallel between the oil inlet and outlet of the parallel flow control valve of binodal head piece, by the position of spool in valve body carry out two restrictions unlatching, close the switching with oil circuit, realize control to flow.
An independent oil path is arranged between the oil inlet and outlet of above-mentioned valve body lower portion in addition, check valve is housed therebetween.
Above-mentioned hydraulic pump is gear pump, quantitative plunger pump, gear motor or quantitative piston motor.
The outlet of the above-mentioned parallel flow control valve of binodal head piece is connected to flow speed control valve.
Owing to adopted such scheme, breaking out of fire in high-rise when there's nowhere to run, can be disobeyed the rescue on outer boundary, and utilizes safety of the present invention, promptly breaks away from on-the-spotly, reduces injures and deaths; Because the present invention is simple in structure, easy to use, the initial velocity of its decline is controllable very slow, automatic slowly accelerates to desin speed and remains unchanged after some seconds, help eliminating user's the feared state of mind, for the user has increased the sense of security, the user need not training and operation, also is not subjected to the influence of depth of building; Because of hydraulic system has two-layer protection, the present invention enough users that can work in the high temperature more than 600 ℃ utilize the present invention to escape required a period of time.
Fig. 1 is a cross-sectional view of the present invention;
Fig. 2 is the structure chart of hydraulic system principle and the parallel flow control valve of binodal head piece.
The invention will be further described below in conjunction with accompanying drawing.
The present invention is made up of three parts, and first comprises housing 1, and reel 2 is connected with the steel wire rope 3 of lap belt; Second portion is a driving gear set 4; Third part is a hydraulic system, by hydraulic pump 7, and filter 8, the parallel flow control valve 9 of binodal head piece, fuel tank 6 and anti-combustion hydraulic medium 11 are formed; Reel 2 connects with hydraulic pump 7 engagements by driving gear set 4, is installed in the housing 1, and housing 1 is fixed on the window or the body of wall above the balcony of building, and steel wire rope 3 is fixed and is wound on the reel 2, and the other end is connected with lap belt; Hydraulic pump 7 is quantitative plunger displacement pump or gear pump, also can be quantitative piston motor or gear motor; Fuel tank 6 constitutes a closed container with adiabatic sealing gasket 5, and Hydraulic Elements place in it, is filled with anti-combustion hydraulic medium 11 in the fuel tank 6, exceeds to flood Hydraulic Elements, is filled with heat-insulating material flake asbestos 10 between housing 1 and the fuel tank 6; The import of filter 8 connects with the outlet of hydraulic pump 7, and the import of the parallel flow control valve 9 of binodal head piece connects with the outlet of filter 8, the logical fuel tank 6 of its outlet, and filter 8 is used for protecting the parallel flow control valve 9 of binodal head piece; The parallel flow control valve 9 of binodal head piece is made up of spool 12, spring 13, left end cap 14, valve body 15 and check valve 16, spool 12 and spring 13 are contained in the A chamber that is made of valve body 15 and left end cap 14, two cavitys about spool 12 is divided into the A chamber, chamber, a left side communicates with oil-in by the runner on the left end cap 14, and end, right chamber has a restriction a to communicate with fuel tank 6; Spool 12 was positioned at the left end in A chamber when oil-in pressure was zero under the spring force effect; Radially there is the annular channel of a logical fuel tank 6 at the middle part of valve body 15.The end of spool 12 has 2～4 triangular grooves, and when the initial position in the A control moved right under the effect of spool 12 at input pressure, hydraulic medium entered left chamber from oil-in, and right chamber medium flows back to fuel tank through the restriction a of end, right chamber; When spool 12 moves to right, when the triangular groove of its end moves on in the runner scope at valve body 15 middle parts, its triangular groove and valve body 15 form a settable orifice at the b place, the runner at left chamber and valve body 15 middle parts is connected, hydraulic medium from oil-in through left chamber, the runner oil sump tank at restriction b, valve body 15 middle parts.
Restriction a and restriction b are positioned at two independently on the oil circuit, be connected in parallel between the oil inlet and outlet of the parallel flow control valve 9 of binodal head piece, by the change in location of spool 12 in valve body 15 carry out restriction a and b unlatching, close the switching with oil circuit, realize control to flow.
An independent oil path is arranged between the oil inlet and outlet of valve body 15 bottoms in addition, check valve 16 is housed therebetween, during hydraulic pump 7 counter-rotating, medium from fuel tank through check valve 16, filter 8, hydraulic pump 7 oil sump tanks.
The outlet of the parallel flow control valve 9 of binodal head piece can also connect flow speed control valve (not drawing among the figure).After connecing flow speed control valve, can eliminate decrease speed the departing from that the variation because of different users's body weight causes from design point.
Operation principle: when user's body weight acts on steel wire rope, gravity produces driving moment by steel wire rope to reel, this moment drives hydraulic pump 7 rotations by driving gear set 4, the oil-in pressure of the parallel flow control valve 9 of binodal head piece is the P (see figure 2), the long-pending moment that produces with user's body weight of this pressure and hydraulic pump discharge balances each other, simultaneously, under this pressure effect, spool 12 moves right from initial position shown in Figure 2, right chamber hydraulic medium flows back to fuel tank through restriction a, the rate of discharge Q=Qa of hydraulic pump 7, the displacement of establishing the spool mouth is x, in 0＜x≤1
1During this period of time in Qa remain unchanged, because of Qa can design minimumly, so delivery side of pump approaches off state during this period of time, rotating speed is very low, decelerating effect because of driving gear set 4, the rotating speed of reel 2 is extremely low, and user's decrease speed is very slow, and it is " firmly " characteristic that hauls the user that steel wire rope shows resistance greatly, always; 1
1＜x＜1
1+ 1
2During this period of time in, restriction b opens, area of passage slowly increases, the flow Q=Qa+Qb of hydraulic pump 7, rotating speed slowly increases, corresponding user's decrease speed is slowly accelerated; Work as x=1
1+ 1
2Penetrate, Qa=0, Qb reach the maximum of design and remain unchanged, the fast speed that can bear when corresponding user's decrease speed reaches landing of design in advance, and keep this speed constant, reduce to ground until the user.After the present invention has realized automatically that by the parallel flow control valve 9 of the binodal head piece of particular design decrease speed very slow when initial keeps a period of time, the control mode that slowly switches to desin speed faster and remain unchanged.
Hydraulic pump is poor from absorption when the slow-speed of revolution, rotating speed cross low can not self-priming, the hydraulic system cisco unity malfunction.Volumetric efficiency is very low during the slow-speed of revolution in addition, and is most of even all hydraulic mediums are directly at pump internal leakage oil sump tank, and the rate of discharge that can provide is very little maybe can not to provide rate of discharge, to such an extent as to can not obtain the required slow-speed of revolution by the control to rate of discharge.Use driving gear set 4 can make pump, possess the ability that provides than the large outlet flow, then by the control of rate of discharge and the deceleration of driving gear set are realized reel 2 slow-revving requirements working under the high rotational speed relatively.Can also reduce simultaneously the operating pressure of hydraulic pump 7, reduce the influence of internal leakage revolution speed.
Claims (5)
1, a kind of device for rescuing from high building during fire, comprise housing (1), reel (2), be connected with the steel wire rope (3) and the hydraulic system of safety belt, it is characterized in that hydraulic system comprise place adiabatic close hold hydraulic pump (7), filter (8), the parallel flow control valve of binodal head piece (9) in the cavity that pad (5) and fuel tank (6) constitute and resist fire hydraulic medium (11); Hydraulic pump (7) connects with filter (8), and filter (8) connects with the parallel flow control valve of binodal head piece (9); Reel (2) connects with hydraulic pump (7) engagement by driving gear set (4); Reel (2), driving gear set (4) and hydraulic system are loaded in the housing (1).
2, device for rescuing from high building during fire as claimed in claim 1 is characterized in that the parallel flow control valve of said binodal head piece (9) comprises spool (12), spring (13), left end cap (14), valve body (15) and check valve (16); Spool (12) and spring (13) are contained in the A chamber of left end cap (14) and valve body (15) formation, two chambeies about the A chamber is divided into, and spool (12) is positioned at A chamber left end; Chamber, a left side communicates with oil-in by the runner on the left end cap (14), and the right part of valve body (15) has a restriction a to communicate with fuel tank (6); There is the annular channel of a logical fuel tank (6) at the middle part of valve body (15); Spool (12) end has 2～4 triangular grooves; Another independently is equipped with check valve (16) on the oil circuit between valve body (15) oil inlet and outlet.
3, device for rescuing from high building during fire as claimed in claim 1 is characterized in that said hydraulic pump (7) is gear pump, quantitative plunger pump, gear motor or quantitative piston motor.
4, device for rescuing from high building during fire as claimed in claim 1 is characterized in that filling up the heat-insulating material flake asbestos between said fuel tank (6) and the housing (1).
5, device for rescuing from high building during fire as claimed in claim 1 is characterized in that the outlet of the parallel flow control valve of said binodal head piece (9) is connected to flow speed control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96119608 CN1175470A (en) | 1996-09-01 | 1996-09-01 | Device for rescuing from high building during fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96119608 CN1175470A (en) | 1996-09-01 | 1996-09-01 | Device for rescuing from high building during fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1175470A true CN1175470A (en) | 1998-03-11 |
Family
ID=5125848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96119608 Pending CN1175470A (en) | 1996-09-01 | 1996-09-01 | Device for rescuing from high building during fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1175470A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003049807A1 (en) * | 2001-12-11 | 2003-06-19 | Xiaolin Bai | Ajustable-speed life-saving apparatus |
| CN102949786A (en) * | 2012-10-25 | 2013-03-06 | 北京中安科创科技发展有限公司 | Recyclable hydraulic damping descent control device with stall protection |
| CN111032551A (en) * | 2017-08-21 | 2020-04-17 | 麦克诺特私人有限公司 | Reel braking system |
-
1996
- 1996-09-01 CN CN 96119608 patent/CN1175470A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003049807A1 (en) * | 2001-12-11 | 2003-06-19 | Xiaolin Bai | Ajustable-speed life-saving apparatus |
| CN102949786A (en) * | 2012-10-25 | 2013-03-06 | 北京中安科创科技发展有限公司 | Recyclable hydraulic damping descent control device with stall protection |
| CN111032551A (en) * | 2017-08-21 | 2020-04-17 | 麦克诺特私人有限公司 | Reel braking system |
| US11840422B2 (en) | 2017-08-21 | 2023-12-12 | Macnaught Pty Ltd | Reel braking system |
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| C06 | Publication | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |