CN201921339U - High altitude descent control device - Google Patents
High altitude descent control device Download PDFInfo
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- CN201921339U CN201921339U CN2011200115331U CN201120011533U CN201921339U CN 201921339 U CN201921339 U CN 201921339U CN 2011200115331 U CN2011200115331 U CN 2011200115331U CN 201120011533 U CN201120011533 U CN 201120011533U CN 201921339 U CN201921339 U CN 201921339U
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- rope
- housing
- pulley set
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Abstract
A high altitude descent control device is characterized by comprising a shell body, wherein the upper half part and the lower half part of the shell body are respectively provided with a large-diameter rope pulley set and a small-diameter rope pulley set; a centrifugal damper is installed between a small-diameter rope pulley shaft of the small-diameter rope pulley set and the shell body, and the small-diameter rope pulley set is connected with the large-diameter rope pulley set through gear transmission; a rope extends into the shell body from a first rope hole on the top of the shell body, surrounds the large-diameter rope pulley set and the small-diameter rope pulley set in sequence and extends out of the shell body from a second rope hole at the bottom of the shell body. A brake mechanism is installed between any small-diameter rope pulley shaft and the shell body. After the rope enwinds a plurality of pulleys, the structure is firmer, the rope cannot slip, the high altitude descent control device has the functions of automatic descent control and manual braking, and the safety performance is improved; a plurality of sets of the descent control devices can be arranged on one rope to realize the purpose of multi-person descent control at the same time.
Description
Technical field
The utility model relate to a kind of from the high-altitude apparatus to the lower safe falling, specifically a kind of safe and reliable high-altitude slow-descending device.
Background technology
Along with growth in the living standard, skyscraper is more and more, has also brought a series of potential safety hazard to life simultaneously.In case breaking out of fire, the resident who is in eminence can't in time escape, and often adopts the extreme mode of jumping out of the building to escape, and this escape mode gently then causes the maimed person, and is heavy then dead.At also having occurred some escape special equipments on the high-rise life saving problem market.As disclosed among the Chinese patent CN201161069Y " portable high-altitude slow-descending device ", comprise housing, steel wire rope rolling wheel, folded formula brake disc, on the steel wire rope rolling wheel, be wound with steel wire rope, friction plate and the mutual friction mutually of folded formula brake disc in brake assembly, folded formula brake disc is fixed on the steel wire rope rolling wheel, thereby realize the rotating speed of control steel wire rope runner, brake assembly is controlled by handle, by handle control decrease speed.There are following several defectives in this kind descending lifeline:
The one,, steel wire rope need be pre-stored in enclosure interior in advance, cause the volume of descending lifeline bigger, can not realize portable purpose; The 2nd,, complex structure needs numerous parts, the cost height, all functions concentrate on the friction brake, poor safety performance; The 3rd,, operation inconvenience, when breaking out of fire, trapped personnel is nervous in general, is difficult to carry out effective speed control, in case the effective dynamics of joystick just may cause tragedy.
The utility model content
At above-mentioned problem, the purpose of this utility model is to provide a kind of high-altitude slow-descending device, need not artificial control and can realize at the uniform velocity descending automatically, has reduced the difficulty of operation; Dual release mechanism is set, improves security.
The technical scheme in the invention for solving the technical problem is: a kind of high-altitude slow-descending device, it is characterized in that, and comprising:
One housing, described housing are the mounting platform of other parts;
The first half of described housing is installed the major diameter pulley set, and Lower Half is installed the minor diameter pulley set; At least the big rope sheave that has two parallel installations in the described major diameter pulley set has two little rope sheaves that be arranged in parallel with big rope sheave at least in the described minor diameter pulley set;
Between at least one marline wheel wheel shaft and the housing a centrifugal damper is installed, and is interconnected by gear drive between described little pulley set and the big pulley set, when wherein any one rope sheave rotated, all the other rope sheaves are rotation simultaneously under the driving of gear train;
One rope penetrates in the housing from the first rope hole of case top, pass housing from the second rope hole of housing bottom after in housing, walking around big pulley set and marline wheels successively, when on rope, descending, because the frictional force between rope and the rope sheave, the rope sheave rotation, the rope sheave rotating speed reaches predetermined value, then centrifugal damper work, and the stable certain speed that is at the uniform velocity descends.
Further, described gear drive comprises gear wheel that is installed on the big rope sheave and the pinion that is installed on the little rope sheave, and described gear wheel diameter and pinion diameter ratio are less than or equal to the ratio of big rope sheave diameter and marline wheel diameter, so just can guarantee the linear velocity of the linear velocity on big rope sheave surface, guarantee that the rope in the housing is in tensioning state all the time greater than little rope sheave.
One manual braking mechanism is installed between any marline wheel wheel shaft and the housing.
Further, described hand-operated brake mechanism comprises and is fixed on the brake disc on the marline wheel wheel shaft and is fixed on brake block on the housing, by the control rope brake block is contacted with brake disc.
Being installed on the same perpendicular of all pinions and gear wheel.
Described centrifugal damper is the centrifugal damper of friction-type, also can be other forms of centrifugal damper.
Further, described centrifugal damper comprises rotating shaft, dynamic friction piece and static friction shell; Described static friction shell is fixed on the housing, described rotating shaft is connected with marline wheel wheel shaft, described dynamic friction piece off-centre on the rotating shaft end face is articulated and connected, one back-moving spring is arranged between dynamic friction piece and the rotating shaft, and described dynamic friction piece under the state of rotating shaft rotation can with the static friction housing contacts, play the effect of damping.
The lower end of described rope is provided with one and prevents the block that housing comes off, and has damping shock absorption mechanism on the described block, increases the security when using.
The beneficial effects of the utility model are: rope is through after the winding of a plurality of rope sheaves, and structure is more firm, and rope can not skid, and has and delays the double action of falling with hand-operated brake automatically, has improved security performance; Many these descending lifelines of cover can be set on a rope, realize the slow simultaneously purpose of falling of many people.
Description of drawings
Fig. 1 looks the complete section diagrammatic sketch for master of the present utility model;
Fig. 2 is a side-looking complete section diagrammatic sketch of the present utility model;
Fig. 3 is the schematic diagram of embodiment two;
Fig. 4 is the schematic diagram of embodiment three;
Fig. 5 is one of user mode figure;
Fig. 6 is two of user mode figure;
Fig. 7 is the cutaway view of centrifugal damper;
The direction of rotation of each rope sheave when arrow is represented slow falling among the figure;
Among the figure: 1 housing, 21 big rope sheaves, 22 gear wheels, 3 gear-boxes, 41 little rope sheaves, 42 pinions, 5 centrifugal dampers, 51 rotating shafts, 52 dynamic friction pieces, 53 static friction shells, 54 back-moving springs, 6 ropes, 7 hand-operated brake mechanisms, 71 control ropes, 81 hangers.
The specific embodiment
Embodiment one
As shown in Figure 1 and Figure 2, a kind of high-altitude slow-descending device includes the housing 1 that left and right sides two housings is combined into, and described housing is a foundry goods, as the mounting platform of other parts.
The first half of housing 1 is provided with some axis holes, be used to install the major diameter pulley set, this big pulley set has four big rope sheaves 21 that diameter is identical, big rope sheave is fixed on the corresponding sheave shaft by key respectively, big rope sheave wheel shaft two ends are installed on housing 1 two side, and the right side of each big rope sheave wheel shaft fixedly mounts a gear wheel 22 that diameter is identical respectively, and gear wheel is arranged in the gear-box 3 on right side, and be meshing with each other from top to bottom between the adjacent gear wheel, realize the synchronous rotation of big rope sheave.
The Lower Half of housing 1 is provided with some axis holes, is used to install the minor diameter pulley set; This little pulley set is made of four identical marline wheels 41 of diameter, marline wheel wheel shaft two ends are installed on housing 1 two side, and a pinion 42 that diameter is identical is installed on the right side of each marline wheel wheel shaft respectively, pinion is arranged in the gear-box 3 on right side, and be meshing with each other from top to bottom between the adjacent pinion 42, be meshing with each other between uppermost pinion and the nethermost gear wheel simultaneously, when wherein any one rope sheave rotated, all the other rope sheaves are rotation simultaneously under the driving of gear train.Above-mentioned gear wheel diameter and pinion diameter ratio be less than the ratio of big rope sheave diameter with the marline wheel diameter, makes the linear velocity of big rope sheave greater than the linear velocity of little rope sheave, makes the rope of enclosure interior be in tensioning state.During installation, should guarantee that all rope sheaves are on same vertical straight line.
Describe for convenient, big or small rope sheave is labeled as first to fourth rope sheave respectively from top to bottom.
The centrifugal damper 5 of a friction-type is installed between the 3rd marline wheel wheel shaft and housing.As shown in Figure 7, centrifugal damper comprises rotating shaft 51, dynamic friction piece 52 and static friction shell 53; Static friction shell 53 is fixed on the housing 1, and rotating shaft is connected by shaft coupling with marline wheel wheel shaft.Dynamic friction piece 52 is two, and off-centre is articulated and connected on the rotating shaft end face, and back-moving spring 54 is installed between brake pad and rotating shaft, thus the dynamic friction piece under the state of rotating shaft rotation can with the static friction housing contacts, reset when static.Owing to the existence of centrifugal force, dynamic friction piece 52 outwards throws away, and directly affacts on the static friction shell medial surface when rotated, and centrifugal force is big more, and frictional force is big more, realizes the effect of damping.Because back-moving spring is connected between dynamic friction piece and the rotating shaft, so under the situation of centrifugal force not, movable friction plate automatically resets.
This centrifugal damper has when the rotating speed of the 3rd marline wheel wheel shaft reaches predetermined value, begins to produce to increase frictional force, reduces reduction of speed, until at the uniform velocity descending; And have the frictional force regulatory function, can the back-moving spring of different elastic force and the dynamic friction piece of different quality be set, to reach the purpose that the different weight crowd uses according to the human body body weight.
One rope 6 penetrates in the housing 1 from the first rope hole of case top, walks around successively from top to bottom in housing that the second rope hole from housing bottom passes housing behind big pulley set and the marline wheels.For the purpose of the safety, system has one to prevent the block that housing comes off in the lower end of rope, is nested with a spring on the rope on block, constitutes damping shock absorption mechanism, when making descending lifeline drop to the bottom, is unlikely to slide suddenly.
Also comprise a manual braking mechanism 7, this hand-operated brake mechanism comprises the brake disc and the brake block that is fixed on the housing that is fixed on the marline wheel wheel shaft, can make brake block hold brake disc tightly by control rope 71, realize the purpose of brake, the speed that can manually assist control to descend, the band-type brake structural similarity on this structure and the bicycle.
Being provided with hangers 81 in the both sides of housing, is that safety rope is arranged on this hangers, and the end of safety rope has a hook, and hook is used for and is connected with safety clothes, and the form of safety clothes adopts existing product to get final product.
The operation principle of this descending lifeline is: rope is walked around rope sheave successively in enclosure interior, twine because rope has passed through repeatedly, frictional resistance is bigger, and rope can be attached on the descending lifeline; After hanging up weight on the descending lifeline, begin to glide, the rope of enclosure interior is tensioned, all rope sheaves begin to rotate simultaneously, because the existence of centrifugal damper, when the rotating speed of little rope sheave reaches predetermined value, will increase frictional force between static friction shell in the centrifugal damper and the dynamic friction piece, reduce acceleration,, realize at the uniform velocity descending until reaching weight and friction equilibrium of forces.Just in case occur to pass through the snub of hand-operated brake mechanism under the malfunctioning situation of centrifugal damper damping, guarantee safety.
Embodiment two
As shown in Figure 3: be that with embodiment one difference the quantity of the big rope sheave in the big pulley set is two, for increasing safety coefficient, rope winds with one circuit on big rope sheave respectively, is used to increase frictional force, prevents out of control suddenly.
Embodiment three
As shown in Figure 4, be that above-mentioned big rope sheave is not to be arranged on the same vertical curve, can realize the function that embodiment one is all equally, and increase the cornerite of rope on rope sheave that safety coefficient is higher with embodiment one difference.
As Fig. 5, shown in Figure 6, the utility model can be used for the occasion that high-rise life saving, special technical soldier's special operations, helicopter air-dropped material etc. need high-altitude slow-descending.
Embodiment recited above is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; this area person skilled all should expand as in the determined protection domain of the utility model claims various distortion of the present utility model and improvement.
Claims (8)
1. a high-altitude slow-descending device is characterized in that, comprise,
One housing, described housing are the mounting platform of other parts;
The first half of described housing is installed the major diameter pulley set, and Lower Half is installed the minor diameter pulley set; At least the big rope sheave that has two parallel installations in the described major diameter pulley set has two little rope sheaves that be arranged in parallel with big rope sheave at least in the described minor diameter pulley set;
Between at least one marline wheel wheel shaft and the housing a centrifugal damper is installed, and is interconnected by gear drive between described little pulley set and the big pulley set, when wherein any one rope sheave rotated, all the other rope sheaves are rotation simultaneously under gear-driven driving;
One rope penetrates in the housing from the first rope hole of case top, walks around successively in housing that the second rope hole from housing bottom passes housing behind big pulley set and the marline wheels.
2. a kind of high-altitude slow-descending device according to claim 1, it is characterized in that, described gear drive comprises the gear wheel that is installed on the big rope sheave and is installed in pinion on the little rope sheave, and described gear wheel diameter and pinion diameter ratio are less than or equal to the ratio of big rope sheave diameter and marline wheel diameter.
3. a kind of high-altitude slow-descending device according to claim 2 is characterized in that, a manual braking mechanism is installed between any marline wheel wheel shaft and the housing.
4. a kind of high-altitude slow-descending device according to claim 3 is characterized in that, described hand-operated brake mechanism comprises and is fixed on the brake disc on the marline wheel wheel shaft and is fixed on brake block on the housing, by the control rope brake block is contacted with brake disc.
5. a kind of high-altitude slow-descending device according to claim 2 is characterized in that, being installed on the same vertical plane of all pinions and gear wheel.
6. a kind of high-altitude slow-descending device according to claim 1 is characterized in that, described centrifugal damper is the centrifugal damper of friction-type.
7. a kind of high-altitude slow-descending device according to claim 6 is characterized in that described centrifugal damper comprises rotating shaft, dynamic friction piece and static friction shell; Described static friction shell is fixed on the housing, described rotating shaft is connected with marline wheel wheel shaft, described dynamic friction piece off-centre on the rotating shaft end face is articulated and connected, one back-moving spring is arranged between dynamic friction piece and the rotating shaft, and described dynamic friction piece under the state of rotating shaft rotation can with the static friction housing contacts.
8. a kind of high-altitude slow-descending device according to claim 1 is characterized in that the lower end of described rope is provided with one and prevents the block that housing comes off, and has damping shock absorption mechanism on the described block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200115331U CN201921339U (en) | 2011-01-14 | 2011-01-14 | High altitude descent control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200115331U CN201921339U (en) | 2011-01-14 | 2011-01-14 | High altitude descent control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201921339U true CN201921339U (en) | 2011-08-10 |
Family
ID=44425214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200115331U Expired - Lifetime CN201921339U (en) | 2011-01-14 | 2011-01-14 | High altitude descent control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201921339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039008A (en) * | 2011-01-14 | 2011-05-04 | 马敏 | High-altitude slow descending device |
| WO2013139057A1 (en) * | 2012-03-19 | 2013-09-26 | He Shaodun | Multi-plate type descender |
-
2011
- 2011-01-14 CN CN2011200115331U patent/CN201921339U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039008A (en) * | 2011-01-14 | 2011-05-04 | 马敏 | High-altitude slow descending device |
| CN102039008B (en) * | 2011-01-14 | 2012-04-18 | 马敏 | High-altitude slow descending device |
| WO2013139057A1 (en) * | 2012-03-19 | 2013-09-26 | He Shaodun | Multi-plate type descender |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110810 Effective date of abandoning: 20120502 |