CN203090282U - Recyclable hydraulic damping descending lifeline with stall protection - Google Patents
Recyclable hydraulic damping descending lifeline with stall protection Download PDFInfo
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- CN203090282U CN203090282U CN 201220553215 CN201220553215U CN203090282U CN 203090282 U CN203090282 U CN 203090282U CN 201220553215 CN201220553215 CN 201220553215 CN 201220553215 U CN201220553215 U CN 201220553215U CN 203090282 U CN203090282 U CN 203090282U
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- hydraulic damping
- descending lifeline
- speed
- hydraulic
- stall protection
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Abstract
The utility model relates to a recyclable hydraulic damping descending lifeline with stall protection, belonging to the field of emergency escape equipment of a high-rise building. The structure consists of a descending device, a gear change mechanism, a stall protection device, a hydraulic damping device, a mounting and fixing device and a shell, wherein the descending device, the gear change mechanism, the stall protection device and the hydraulic damping device are connected in sequence and are arranged in the shell; and the mounting and fixing device is connected with the shell. The descending lifeline provided by the utility model is of a mechanical hydraulic structure, has the characteristics of small size, high reliability, convenience in use and simplicity in maintenance, and is suitable for descending rescue of the high-rise building in an emergency case.
Description
Technical field
The utility model belongs to grand building emergency survival equipment field.
Background technology
Escaping descent control device (or lifesaving descent control device) is that a kind of dependence user safety of conducting oneself with dignity descends or relies on speed regulator that damping action is provided, the free-ended decrease speed of restriction safety rope, make the people along (with) the slow safe escape device of decline of rope (band); This device comprises parts such as speed regulator, rope, connector and rope reel.At present, the most frictional damping structures that adopt of the escaping descent control device product of grand building emergency life-saving, the descending lifeline of this type adopts the friction catch principle: generally by rubbing device people's gravity is converted into frictional resistance with gravitational equilibrium, realize people's at the uniform velocity decline, but existing, this type of mechanism problem such as lack in instruction inconvenience, velocity jump, service life, and rubbing device is easier to occur to lose efficacy or situations such as fault, and the reliability of in emergency circumstances using after long preservation remains further to be improved.Compared to the descending lifeline that adopts the frictional damping structure, adopt the speed limiting mechanism of hydraulic damping principle then more having superiority aspect stationarity and the reliability.
The hydraulic damping speed limiting mechanism in escaping descent control device field generally comprises parts such as main shaft, reel, rope, hydraulic damping structure and connector at present.
The principle of this device generally is the reciprocating motion that rotatablely moving of reel is converted to similar piston apparatus, and the hydraulic damping that is subjected to by piston motion limits the speed of rotation of reel.But there is the relatively poor problem of ride comfort in reciprocating hydraulic damping, has reduced mechanism stability, and under specific circumstances even can break down, the reliability of mechanism has much room for improvement.
Also have a kind of flabellum device that in oil closed cavity, adopts that the form of damping is provided, generally comprise parts such as main shaft, rope, rotary damping impeller and connector.Oil in this device in the oil pocket can wholely rotate with flabellum, lean on the friction between the oil film to form damping, and damping liquid and device volume are all had higher requirement.
Therefore at market existing hydraulic damping class descending lifeline have ride comfort undesirable, to problems such as damping liquid and device volume have high requirements, develop a kind of novel, volume is little, form is simple, reliability is high, the hydraulic damping descending lifeline being convenient to operate, and is significant in high-rise construction of structures personnel's escape process.
Summary of the invention
The purpose of this utility model is to overcoming the weak point of prior art; a kind of mechanical hydraulic damping descending lifeline that can be recycled and have stall protection is provided, has volume compact, form is simple, reliability is high, working service is convenient, processing and manufacturing is with low cost advantage.
The utility model provides a kind of hydraulic damping descending lifeline, it is characterized in that, this equipment mainly is made up of lowering means, speed change gear, stall protection device, hydraulic damping device, fixing device for installing and housing.Wherein lowering means can be taked two kinds of versions, a kind of is drum mechanism built, another kind is synchronizing wheel and is with mechanism synchronously, be used to realize that high-rise escape personnel drops to safety place quickly and safely, the rotating speed of two kinds of structures is associated with the decrease speed of rope and synchronous band respectively, and is simultaneously also related with liquid circulation driver drives axle rotating speed; Described speed change gear is in order to the speed of coupling hydraulic damping device rotary speed and lowering means, and mates both power or the balance of moment.As an example, can be made of gear wheel and pinion, gear wheel is with synchronizing wheel or reel is coaxial links to each other pinion and coaxial linking to each other of liquid circulation driver; Described stall protection device adopts the stall protection device, when liquid circulation driver drives axle rotating speed surpasses preset value, when hydraulic damping device speed limit lost efficacy, the stall protection device starts provides further speed restriction or locking to the rope decrease speed, and then regulates escape personnel's decrease speed in safe range; Described hydraulic damping device is made up of circulate driver, pipeline, check valve, choke valve and fuel tank of liquid, and liquid circulation driver rotates under reel or synchronizing wheel effect, promotes liquid and forms damping through choke valve, realizes the function of hydraulic damping speed limit; Fixing device for installing is in order to be installed on the hydraulic damping descending lifeline correct position of construction of structures fixing point or reliable weight; Housing is used for supporting and protection speed change gear, stall protection device and hydraulic damping device.
For improving equipment efficiency of usage, after once descending, can carry out immediately descending the second time, can adopt two reel structures to realize that rope replaces rise and fall, the coaxial connection of two cover reels, rope is wrapped on the reel along both direction respectively.
When selecting synchronous band and synchronizing wheel mechanism for use, adopt manual drop device snap close in being with synchronously, the escape personnel is suspended on the manual drop device, escape personnel's gravity puts on a side of synchronous band by manual drop device, drive synchronizing wheel, speed change gear and the motion of hydraulic damping device, the hydraulic damping device provides the damping to synchronous band speed limit, keeps being with a side to descend with certain speed synchronously, drops to safe altitude until the escape personnel.If break down, when band can't move synchronously, the escape personnel can enable earlier manual drop device synchronously with on friction speed limit function, remove the manual drop device and the locking relation of band synchronously again, the escape personnel descends with safety speed by controlling manual drop device.
As long as in the efficient working range of line strength and hydraulic damping device, also can a plurality of mount points be set in turn on rope by suitably increasing the length of rope, be convenient to carry many people and descend.
At the different needs that reality is used, this hydraulic damping descending lifeline can adopt fixed installation or interim mode of installing that the emergency escape function is provided.
The utlity model has following characteristics and beneficial effect:
The utility model adopts hydraulic damping device restriction decrease speed, and provides dual fail-safe by the stall protection device, in the load-carrying scope; decrease speed with hang gravitational independent; can be child, adult, all keep stable decrease speed under the high-altitude escape situation such as single or many people, move smooth-going.When adopting two drum mechanism built, the ropes of two cover reels are oppositely reeled, and a rope drops at the end, and other staff can use another rope to descend immediately, and reel begins to rotate round about, and will drop to the rope at the end and promote backrush; Treat that the rope that uses for the second time drops to the end, then backrush is in place for the rope that uses for the first time, can come into operation once more.So cycle alternation descends, and can save the quality time in the emergency escape process.When using synchronously band and synchronizing wheel mechanism, be with circlewise synchronously, can need not to wait for the rope backrush along any direction use that back and forth descends.Band can recycle equally synchronously.This descending lifeline that the utility model provides is the mechanical-hydraulic structure, have that size is little, reliability is high, easy to use, safeguard characteristic of simple, be suitable for the in emergency circumstances high-rise escape that descends and use.
Description of drawings
Fig. 1 is a hydraulic damping descending lifeline overall structure schematic diagram of the present utility model.
Fig. 2 is a hydraulic damping device embodiment schematic diagram of the present utility model.
Fig. 3 is a stall protection device embodiment schematic diagram of the present utility model.
Fig. 4 is an of the present utility model pair of reel structure embodiment schematic diagram.
Fig. 5 is synchronizing wheel of the present utility model and is with mechanism for implementing illustration intention synchronously.
Fig. 6 is assembled into holistic schematic perspective view for each parts of present embodiment.
The specific embodiment
The hydraulic damping descending lifeline (hereinafter to be referred as the hydraulic damping descending lifeline) that can be recycled and have stall protection that the grand building emergency situation that can be used for that the utility model proposes descends and escapes reaches embodiment in conjunction with the accompanying drawings and is described in detail as follows:
The utility model proposes a kind of can be recycled have stall protection hydraulic damping descending lifeline structure as shown in Figure 1.This structure is made up of lowering means I, speed change gear II, stall protection device III, hydraulic damping device IV, fixing device for installing V and housing VI; Wherein lowering means I, speed change gear II, stall protection device III, hydraulic damping device IV are continuous successively is installed in the housing VI, and the fixing device for installing V links to each other with housing.
Described lowering means adopts drum mechanism built 11 or synchronizing wheel and is with mechanism 12 synchronously, drum mechanism built comprises reel and the rope on the reel, synchronizing wheel and the synchronous mechanism that is with comprise synchronizing wheel and the synchronous band that is enclosed within on the synchronizing wheel, and the manual drop device that links to each other with synchronous band, be used to realize that high-rise escape personnel drops to safety place quickly and safely; Described hydraulic damping device is made up of liquid circulation driver 16, pipeline 17, check valve 18, choke valve 19, check valve 111, choke valve 112 and fuel tank 113, the liquid of liquid circulation driver goes out the parallel combination that inserts two cover check valves and choke valve between the inbound port, and the opposite back of installing constitutes symmetrical circuit by the pipeline connection fuel tank, liquid circulation driver, connecting pipeline, check valve, choke valve and fuel tank have constituted a liquid circulation confined space together, in order to the function of hydraulic damping speed limit to be provided; Described stall protection device is for providing the stall protection under the operation fortuitous event, when liquid circulation driver rotating speed surpasses preset value, when hydraulic damping device speed limit lost efficacy, the stall protection device starts, provide further speed restriction or locking to the rope decrease speed, and then regulate escape personnel's decrease speed in safe range, device can be conventional stall protection device 15, can be fast difference controller and centrifugal friction limiter of speed etc.; Housing is used for supporting and protection speed change gear, stall protection device and hydraulic damping device; Fixing device for installing is in order to be installed on housing the correct position of construction of structures fixing point or reliable weight.
Described hydraulic damping device as shown in Figure 2, by liquid circulation driver 21, pipeline 24, check valve 25, choke valve 26, check valve 27, choke valve 28 and fuel tank 29 are formed, the liquid of liquid circulation driver 21 goes out the assembly that is made of check valve and choke valve parallel access two covers of an end of pipeline between the inbound port, two assemblies are installed on the contrary, and the pipeline other end is communicated with fuel tank and constitutes symmetrical circuit, liquid circulation driver like this, connecting pipeline, check valve, choke valve and fuel tank have constituted a liquid circulation confined space together, and hydraulic damping speed limit function can be provided.Liquid circulation driver 21 mainly is made up of liquid circulation actuator housing 22 and master, driven gear 23, and main, driven gear is meshing with each other and is installed on liquid circulation actuator housing inside, can realize two-way rotation.When the escape personnel uses lowering means to descend, lowering means can drive speed change gear and rotate, and then drive liquid circulation driver rotates, driving liquid passes through from choke valve, by predefined throttle valve opening control hydraulic circuit resistance, resistance is passed to reel to liquid circulation driver or synchronizing wheel is controlled the rope decrease speed.Can also adopt bidirectional throttling valve to replace the structure of two groups of check valves and one-way throttle valve, no matter reel rotates towards both forward and reverse directions, and bidirectional throttling valve can both provide hydraulic damping by throttling action.Because designed the symmetrical oil circuit of two covers, reel or synchronizing wheel all can form hydraulic damping in the rotation of both direction, fuel tank can guarantee still can reliably work when micro-seepage takes place simultaneously.
Liquid circulation driver can be various types of hydraulic pumps or hydraulic motor, such as adopting external gear rotary pump simple in structure, with low cost.External gear rotary pump manufacturing technology maturation, with low cost, be the strong support of this descending lifeline practicability marketization.Certainly, hydraulic pump can also adopt trochoid or other types hydraulic pumps such as barrier type gear pump, vane pump, plunger displacement pump and screw pump.
Described speed change gear, its effect are the speed of coupling hydraulic damping device rotary speed and lowering means, and mate both power or the balance of moment.As an example, can constitute by gear wheel and pinion.Be meshing with each other between the big pinion, gear wheel is with reel or synchronizing wheel is coaxial is connected, and pinion is connected with the hydraulic damping device is coaxial.In escape personnel's decline process, drive pinion rotation, realize the speedup function, and then provide power for the liquid circulation driver in the hydraulic damping device for gear wheel provides power.
Described stall protection device and liquid circulation driver be coaxial to link to each other or directly is connected with reel is coaxial, is provided at the urgent speed limit under the overspeed situation such as hydraulic damping failure of apparatus.The stall protection device can be the speed-limiting device through friction-type limiter of speed, ratchet-type limiter of speed or other speed limit principles of overmatching instruction.As an example, a kind of example structure of friction-type limiter of speed as shown in Figure 3, be made up of friction pair part 31, mandrel 32 and centrifugal friction piece 33, centrifugal friction piece 33 and mandrel 32 are connected by connector, and the friction pair part surrounds the centrifugal friction piece and is fixed on the housing frame.When drum speed surpassed certain speed limit, the centrifugal friction piece contacted with the friction pair part under the action of the centrifugal, and generation frictional resistance plays the speed-limiting protection effect under the stall situation.The stall protection device that adopts can further increase the reliability of escaping descent control device, better guarantee is provided for high-rise construction of structures lifesaving.
Described lowering means can be taked two kinds of versions, and a kind of is drum mechanism built, and another kind is synchronizing wheel and the synchronous mechanism that is with, and two kinds of versions can replace mutually, and every kind of structure all can realize the slow safely function of reducing to safety place with the escape personnel.Reel structure can be taked two kinds of forms of implementation again, i.e. single drum structure and two reel structure.The embodiment of two reel structures as shown in Figure 4, reel 41 and 42 coaxial linking to each other of reel, corresponding respectively rope 43, the ropes 44 that are wrapped on the above two cover reels oppositely twine.After the escape personnel used rope 43 to drop to ground, other staff can use rope 44 to begin to descend immediately, and this moment, reel 42 beginnings were rotated round about, and with rope 43 lifting backrush, treat that rope 44 drops to the end, rope 43 backrush put in place, can come into operation once more.So cycle alternation descends, and can save the quality time in the emergency escape process.The single drum structure is actual to be the simplification of two reel structures, only is made up of a reel and a rope, can only one-way only operation, need just can work on then after using once, thereby realization recycles manually with the rope backrush.On described rope 43, the rope 44 a plurality of safe hanging points 45 can be set, when descending escape, many people can be mounted on the slow safety place of reducing to of safe hanging point on the rope successively, and everyone uses one of them hanging point each only the needs, thereby realizing that many people are slow simultaneously falls.For the hydraulic damping descending lifeline, because the effect of hydraulic damping, load weight is less to the influence of speed, and the number of safe hanging point needs to determine according to line strength and damping strength on the rope.
Synchronizing wheel of the present utility model and synchronous band mechanism for implementing are for example shown in Figure 5, by synchromesh gear 51, synchronously be with 52 and manual drop device 53 form, the band inboard is the gear-like structure synchronously, in order to realize transmission agency with the synchronizing wheel engagement, in personnel's decline process, manual drop device is locked in synchronously to be with.Manual drop device is made up of last sluice gate 54, rim brake 55, synchromesh gear 56, a pair of left and right sides sluice gate 57 and manual drop device housing 58, last sluice gate 54 is positioned at manual drop device housing 58 tops, sluice gate 57 is positioned at two ends, manual drop device housing 58 left and right sides, synchromesh gear 56 is installed on manual drop device housing 58 inside, rim brake 55 1 ends contact with synchromesh gear 56 in manual drop device enclosure interior, the other end is positioned at manual drop device housing 58 outsides, uses for the escape personnel.When using synchronizing wheel and being with mechanism synchronously, the escape personnel need latch in manual drop device and be with (sluice gate 54 and band engagement synchronously on this moment synchronously, left and right sides sluice gate 57 separates with synchronous band), in personnel's decline process, drive speed change gear and the rotation of hydraulic damping device by synchronous band, realize the hydraulic damping speed limit, the escape personnel is descended with certain velocity-stabilization.Synchronously band can be recycled for annular, and first people latches in manual drop device and be with synchronously when descending, and second people need not to wait for that first people drops to the position, just can continue manual drop device is installed is realized that safety is delayed and fall being with synchronously.When using synchronously band and synchronizing wheel mechanism, do not influencing when descending the personnel escape, but synchronizing wheel forward, backwards rotation.Can under the situation of unexpected fault, guarantee that in friction speed limit mode the escape personnel drops to home with safety speed by the synchronous band of manual drop device utilization.
The escape personnel breaks down in using the process of band decline synchronously, and manual drop device can be converted into escape personnel's self gravitation is the limiter of speed of decline driving force.The escape personnel enable earlier manual drop device synchronously with on friction speed limit function (left and right sides sluice gate 57 and the band appropriate applying in the outside synchronously, synchromesh gear and interband tight engagement) synchronously, remove manual drop device and the locking relation of being with synchronously (going up sluice gate 54 separates with synchronous band both sides) again, guarantee that with friction speed limit mode the escape personnel descends with certain speed, the escape personnel can regulate decrease speed by the aperture that changes rim brake in the decline process.
Described housing comprises assemblies such as frame 62, outer cover 63, and as shown in Figure 6, frame 62 is in order to the installation carrier as speed change gear, stall protection device and hydraulic damping device etc., and outer cover 63 is in order to protect above equipment.
Described hydraulic damping descending lifeline integral body and fixture form are as shown in Figure 6.Fixture 61 can be devices such as lasso trick, hook, and the one end is fixed on the housing outer cover, and the other end is installed on construction of structures fixing point or the reliable weight.In the installation that can integral body fixes of construction of structures correct position hydraulic damping descending lifeline, promptly devices such as expansion bolt, foundation bolt or metal anchors are located to be provided with in wall by or escape way indoor at skyscraper or ground etc., and the fixture of hydraulic damping descending lifeline is installed in the construction of structures position near glass or other passways for escaping.During emergency, the escape personnel need not temporary fixed descending lifeline, and only needs take out from hard-wired descending lifeline rope, and hangs on the rope and can fall escape from windowpane or other passways for escaping are slow by the safety hanging point.Also can use the be connected and fixed interim mounting means of thing or reliable weight of noose or hook form, the escape personnel need select to bear the weight of escape personnel and descending lifeline inside and outside the construction of structures and the object that do not move or damage as the temporary fastening device of descending lifeline, noose or hook by descending lifeline connect with it, thereby fixedly descending lifeline, and then use descending lifeline escape.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is a specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. a hydraulic damping descending lifeline that can be recycled and have stall protection is characterized in that, this structure is made up of lowering means, speed change gear, stall protection device, hydraulic damping device, fixing device for installing and housing; Wherein lowering means, speed change gear, stall protection device, hydraulic damping device are continuous successively is installed in the housing, and fixing device for installing links to each other with housing.
2. hydraulic damping descending lifeline according to claim 1, it is characterized in that, described lowering means adopts drum mechanism built or synchronizing wheel and is with mechanism synchronously, drum mechanism built comprises reel and the rope on the reel, synchronizing wheel and the synchronous mechanism that is with comprise synchronizing wheel and the synchronous band that is enclosed within on the synchronizing wheel, and the manual drop device that links to each other with synchronous band.
3. as hydraulic damping descending lifeline as described in the claim 2, it is characterized in that described manual drop device is made up of last sluice gate, rim brake, synchromesh gear, a pair of left and right sides sluice gate and manual drop device housing; Last sluice gate is positioned at manual drop device housing top, left and right sides sluice gate is positioned at two ends, the manual drop device housing left and right sides, synchromesh gear is installed on manual drop device enclosure interior, rim brake one end contacts with synchromesh gear in manual drop device enclosure interior, the other end is positioned at manual drop device hull outside, uses for the escape personnel.
4. hydraulic damping descending lifeline according to claim 1, it is characterized in that, described hydraulic damping device is made up of circulate driver, pipeline, check valve, choke valve and fuel tank of liquid, the liquid of liquid circulation driver goes out the parallel combination that inserts two cover check valves and choke valve between the inbound port, and constituting symmetrical circuit by the pipeline connection fuel tank after opposite the installation, liquid circulation driver, connecting pipeline, check valve, choke valve and fuel tank have constituted a confined space together.
5. as hydraulic damping descending lifeline as described in the claim 4, it is characterized in that described liquid circulation driver can adopt hydraulic pump or hydraulic motor; Hydraulic pump can adopt trochoid or barrier type gear pump, vane pump, plunger displacement pump and screw pump etc.
6. hydraulic damping descending lifeline according to claim 1 is characterized in that, described stall protection device can adopt through friction-type limiter of speed, the ratchet-type limiter of speed of overmatching instruction or other speed-limiting device with speed limit principle.
7. as hydraulic damping descending lifeline as described in the claim 6, it is characterized in that, described friction-type limiter of speed is made up of friction pair part, mandrel and centrifugal friction piece, and the centrifugal friction piece is connected by connector with mandrel, and the friction pair part is enclosed in centrifugal friction piece outside and is fixed on the housing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553215 CN203090282U (en) | 2012-10-25 | 2012-10-25 | Recyclable hydraulic damping descending lifeline with stall protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553215 CN203090282U (en) | 2012-10-25 | 2012-10-25 | Recyclable hydraulic damping descending lifeline with stall protection |
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| Publication Number | Publication Date |
|---|---|
| CN203090282U true CN203090282U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220553215 Expired - Lifetime CN203090282U (en) | 2012-10-25 | 2012-10-25 | Recyclable hydraulic damping descending lifeline with stall protection |
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| Country | Link |
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| CN (1) | CN203090282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107281661A (en) * | 2017-08-15 | 2017-10-24 | 南通金露智能设备有限公司 | A kind of unattended tyre type high-rise building escape device |
| CN109081138A (en) * | 2018-08-08 | 2018-12-25 | 张勤 | A kind of manual slow drop charging crane applied to concrete duct |
-
2012
- 2012-10-25 CN CN 201220553215 patent/CN203090282U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107281661A (en) * | 2017-08-15 | 2017-10-24 | 南通金露智能设备有限公司 | A kind of unattended tyre type high-rise building escape device |
| CN107281661B (en) * | 2017-08-15 | 2022-04-15 | 南通金露智能设备有限公司 | Unattended wheel belt type high-rise escape device |
| CN109081138A (en) * | 2018-08-08 | 2018-12-25 | 张勤 | A kind of manual slow drop charging crane applied to concrete duct |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130731 |