CN101143246A - Trolley type slow drop-down apparatus - Google Patents
Trolley type slow drop-down apparatus Download PDFInfo
- Publication number
- CN101143246A CN101143246A CNA2007101318149A CN200710131814A CN101143246A CN 101143246 A CN101143246 A CN 101143246A CN A2007101318149 A CNA2007101318149 A CN A2007101318149A CN 200710131814 A CN200710131814 A CN 200710131814A CN 101143246 A CN101143246 A CN 101143246A
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- pulley
- eccentric wheel
- housing
- pair
- rope
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Abstract
The present invention discloses a pulley descent control device, providing with a casing in which a pulley decelerating device is arranged. The present invention comprises an eccentric wheel, a pair of assistant pulleys, a pair of end pulleys and a rope. The eccentric wheel is arranged at the center through the dead axle on the casing. The pair of assistant pulleys and the pair of end pulleys are respectively arranged at the two sides of the eccentric wheel symmetrically through the dead axle on the casing. The rope passes round the pulleys in S-shape. The operational principle of the pulley descent control device is that the friction between the pulleys and the friction between the pulleys and the rope together play the role of deceleration and descent control.
Description
Technical field
The present invention relates to the descending lifeline field, refer in particular to a kind of trolley type slow drop-down apparatus.
Background technology
When accident appearred in work high above the ground, perhaps under the situation of dangerous situation such as high-rise breaking out of fire, traditional quick escape mode was for to escape by facilities such as rope ladder, life chute, escape wells, but these facility cost height, it is big to take up room, and uses inconvenience, and especially the sick children of the old and the weak is inapplicable.In this case, the slow machine that falls has been given birth to regard to application, but present various slow fall machine exist mostly bulky, complex structure, cost of manufacture height, the perishable or slow shortcoming such as poor effect of falling.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the deficiencies in the prior art, the invention provides a kind of simple in structure, easy to make, the slow good trolley type slow drop-down apparatus of effect that falls.
The technical solution adopted for the present invention to solve the technical problems is: a kind of trolley type slow drop-down apparatus, has a housing, inside is provided with the pulley speed reducing device, comprise eccentric wheel, a pair of auxiliary pulley, a pair of guide pulley and rope, eccentric wheel is arranged on central authorities by the fixed axis on the housing, and a pair of auxiliary pulley and a pair of guide pulley all are symmetricly set on eccentric both sides respectively by the fixed axis on the housing; After one end of rope enters from the opening position of housing, between the guide pulley of an eccentric wheel and a side, pass earlier, take advantage of a situation again and between the auxiliary pulley of homonymy and eccentric wheel, pass, form serpentine wear around, then between the auxiliary pulley of opposite side and eccentric wheel, pass, taking advantage of a situation passes between the guide pulley of this side and eccentric wheel again, draws from the opening position of housing at last.
Further, eccentric wheel is made up of interior wheel shaft and outer pulley, and interior wheel shaft has an eccentric pivot hole, is set on by this axis hole on the fixed axis of housing, and outer pulley sleeve is on interior wheel shaft.
The invention has the beneficial effects as follows: this trolley type slow drop-down apparatus is light small and exquisite, and is simple in structure, easy to make, with low cost, and the slow effect of falling is good.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
The specific embodiment
A kind of trolley type slow drop-down apparatus as shown in Figure 1, has a housing 1, inside is provided with the pulley speed reducing device, comprise eccentric wheel 2, a pair of auxiliary pulley 3, a pair of guide pulley 4 and rope 5, eccentric wheel 2 is arranged on central authorities by the fixed axis on the housing 1, and a pair of auxiliary pulley 3 and a pair of guide pulley 4 all are symmetricly set on the both sides of eccentric wheel 2 respectively by the fixed axis on the housing 1; After one end of rope 5 enters from the opening position of housing 1, between the guide pulley 4 of an eccentric wheel 2 and a side, pass earlier, take advantage of a situation again and between the auxiliary pulley 3 of homonymy and eccentric wheel 2, pass, form serpentine wear around, then between the auxiliary pulley 3 of opposite side and eccentric wheel 2, pass, taking advantage of a situation passes between the guide pulley 4 of this side and eccentric wheel 2 again, draws from the opening position of housing 1 at last.
As shown in Figure 1, when rope is affected, eccentric wheel is subjected to the effect of the tensioning pressure of a side rope to be pressed towards opposite side, and the auxiliary pulley of the opposite side that reclines, the opposite side rope is sandwiched between the two pulley races, wheel shaft can not rotate around fixed axis again in this moment was eccentric, outer pulley then is rotated further around interior wheel shaft under the drive of rope, under the effect of the tensioning pressure of rope, eccentric outer pulley, auxiliary pulley, produce stronger frictional force between the rope three, add the effect of the frictional force between the outer pulley of eccentric wheel self and its interior wheel shaft, cause the pulley rotating speed to slow down, and rope formed serpentine between each pulley wear around, also strengthened the frictional force between rope and each pulley, and then also limited the rotating speed of whole assembly pulley, having played the slow effect of falling of slowing down.
This trolley type slow drop-down apparatus is light small and exquisite, and is simple in structure, and the slow effect of falling is good.
Claims (2)
1. trolley type slow drop-down apparatus, has a housing (1), it is characterized in that: housing is provided with the pulley speed reducing device in (1), comprise eccentric wheel (2), a pair of auxiliary pulley (3), a pair of guide pulley (4) and rope (5), eccentric wheel (2) is arranged on central authorities by the fixed axis on the housing (1), and a pair of auxiliary pulley (3) and a pair of guide pulley (4) all are symmetricly set on the both sides of eccentric wheel (2) respectively by the fixed axis on the housing (1); After one end of rope (5) enters from the opening position of housing (1), between the guide pulley (4) of an eccentric wheel (2) and a side, pass earlier, take advantage of a situation again and between the auxiliary pulley (3) of homonymy and eccentric wheel (2), pass, then between the auxiliary pulley (3) of opposite side and eccentric wheel (2), pass, taking advantage of a situation passes between the guide pulley (4) of this side and eccentric wheel (2) again, draws from the opening position of housing (1) at last.
2. a kind of trolley type slow drop-down apparatus according to claim 1, it is characterized in that: described eccentric wheel (2) is made up of interior wheel shaft (2-1) and outer pulley (2-2), interior wheel shaft (2-1) has an eccentric pivot hole, be set on by this axis hole on the fixed axis of housing (1), outer pulley (2-2) is enclosed within on the interior wheel shaft (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101318149A CN101143246A (en) | 2007-09-03 | 2007-09-03 | Trolley type slow drop-down apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101318149A CN101143246A (en) | 2007-09-03 | 2007-09-03 | Trolley type slow drop-down apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101143246A true CN101143246A (en) | 2008-03-19 |
Family
ID=39206095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101318149A Pending CN101143246A (en) | 2007-09-03 | 2007-09-03 | Trolley type slow drop-down apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101143246A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133457A (en) * | 2011-04-01 | 2011-07-27 | 张一扬 | Controllable safe slowly descending device |
| CN104138639A (en) * | 2013-05-07 | 2014-11-12 | 董良秀 | Two-rope and multi-wheel descent control device |
| CN107313566A (en) * | 2017-07-26 | 2017-11-03 | 佛山科学技术学院 | A kind of roller self-locking is saved oneself fence |
| CN109224330A (en) * | 2018-10-19 | 2019-01-18 | 镇江市星翌交通设备配件有限公司 | A kind of descending lifeline for high-rise life saving |
| CN112274385A (en) * | 2020-11-12 | 2021-01-29 | 孙诗宇 | Department of neurology upper limbs rehabilitation equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081327A (en) * | 2007-06-25 | 2007-12-05 | 陈建元 | Pulley speed reducing type slowly lowering machine |
-
2007
- 2007-09-03 CN CNA2007101318149A patent/CN101143246A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081327A (en) * | 2007-06-25 | 2007-12-05 | 陈建元 | Pulley speed reducing type slowly lowering machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133457A (en) * | 2011-04-01 | 2011-07-27 | 张一扬 | Controllable safe slowly descending device |
| CN104138639A (en) * | 2013-05-07 | 2014-11-12 | 董良秀 | Two-rope and multi-wheel descent control device |
| CN107313566A (en) * | 2017-07-26 | 2017-11-03 | 佛山科学技术学院 | A kind of roller self-locking is saved oneself fence |
| CN109224330A (en) * | 2018-10-19 | 2019-01-18 | 镇江市星翌交通设备配件有限公司 | A kind of descending lifeline for high-rise life saving |
| CN112274385A (en) * | 2020-11-12 | 2021-01-29 | 孙诗宇 | Department of neurology upper limbs rehabilitation equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080319 |