CN201777769U - Non-manipulation anti-reverse rotation protection device for escalator - Google Patents
Non-manipulation anti-reverse rotation protection device for escalator Download PDFInfo
- Publication number
- CN201777769U CN201777769U CN2010205009103U CN201020500910U CN201777769U CN 201777769 U CN201777769 U CN 201777769U CN 2010205009103 U CN2010205009103 U CN 2010205009103U CN 201020500910 U CN201020500910 U CN 201020500910U CN 201777769 U CN201777769 U CN 201777769U
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- Prior art keywords
- escalator
- ratchet
- manipulation
- protection device
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Escalators And Moving Walkways (AREA)
Abstract
The utility model relates to a non-manipulation anti-reverse rotation protection device for an escalator, which belongs to the field of safety protection devices of elevators, and comprises a heavy hammer, wherein the heavy hammer pushes against a transmission chain of the escalator, the non-manipulation anti-reverse rotation protection device further comprises a ratchet wheel which is lower than the transmission chain and a rotating shaft which is higher than the transmission chain, the ratchet wheel is provided with a hollow part, the hollow part is provided with a velometer, the rotating shaft is connected with an electric switch, a pawl and a connecting rod are sheathed on the rotating shaft, and one end of the connecting rod is connected with the heavy hammer. The pawl can be clamped into the ratchet wheel for playing a stopping role under the situation that the transmission chain is broken, and the velometer can monitor the speed of the escalator in a real-time manner, thereby preventing the occurrence of overspeed situation of the escalator.
Description
Technical field
The utility model belongs to elevator safety fender guard field, relates in particular to the anti-reversal protection device of the non-manipulation of a kind of escalator.
Background technology
CN200720042484.1 discloses name and has been called escalator or the anti-patent that reverses safety guard of moving sidewalk mechanical type, it comprises fixing cam on the drive shaft tube, the fixing switch that is arranged on the horizontal support of being arranged on, cam has protuberance and recess, switch has that switch re-packs, first contact, second contact, switch re-packs and goes up the fixing contact that is provided with, when the cam clickwise, protuberance is resisted against described switch and re-packs when going up, and contact is resisted against on second contact; When the cam left-hand revolution, protuberance is resisted against described switch and re-packs when going up, and contact is resisted against on first contact.This mechanical anti-reverse safety guard is started working along with the running of escalator or moving sidewalk, can not conductively-closed, thus can more effectively prevent escalator or the moving sidewalk injury accident that takes a turn for the worse.But this patent also reckons without the situation that the escalator hypervelocity is provided owing to the raising force that provides is excessive.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of anti-reversal protection device of the non-manipulation of escalator that can prevent the staircase hypervelocity is provided.
Above-mentioned technical purpose of the present utility model is achieved through the following technical solutions:
The reversal protection device is prevented in the non-manipulation of a kind of escalator; comprise weight; the messenger chain of described weight and escalator is inconsistent; it also comprises ratchet that is lower than messenger chain and the rotating shaft that is higher than messenger chain; described ratchet is provided with hollow bulb, and hollow bulb is provided with velometer, and described rotating shaft is connected with electric switch; be arranged with ratchet and connecting rod in the described rotating shaft, described connecting rod one end links to each other with weight.
As preferably, described velometer is connected with stopping device.
As preferably, the depressed part of described ratchet is wider than the width of ratchet.
As preferably, described velometer comprises Magnetic contact switch, is provided with check point on described ratchet inwall.
Practical beneficial effect of the present utility model is:
1, ratchet of the present utility model is provided with hollow bulb, and hollow bulb is provided with velometer, and velometer is connected with stopping device, can monitor the speed of escalator in real time by velometer, prevents that situation about exceeding the speed limit from taking place.
2, the depressed part of ratchet of the present utility model is wider than the width of ratchet, has guaranteed that ratchet snaps in ratchet easily.
3, the utility model is not only simple in structure, and cheap for manufacturing cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
In the drawings, the numbering of each several part is as follows: 1-ratchet, 2-rotating shaft, 3-ratchet, 4-connecting rod, 5-weight, 6-messenger chain, 7-velometer, 8-electric switch.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, the reversal protection device is prevented in the non-manipulation of a kind of escalator, and it comprises ratchet 1 and rotating shaft 2; ratchet 1 is provided with hollow bulb, and hollow bulb is provided with velometer 7, is arranged with ratchet 3 and connecting rod 4 in the rotating shaft 2; connecting rod 4 one ends are provided with weight 5, and weight 5 posts messenger chain 6 mutually.Velometer 7 is connected with stopping device, and velometer 7 includes Magnetic contact switch; The depressed part of ratchet 1 is wider than the width of ratchet 2.Ratchet and 3 connecting rods 4 are enclosed within same axle and go up (angle that forms can be regulated mutually), are pressed on the messenger chain 6 by deadweight when weight 5 is flat.When staircase normally moves, messenger chain 6 and weight 5 slide relative on the very little face of friction force.Under the situation of overweight messenger chain 6 chain ruptures of motor load, weight 5 is centrifugal to lower swing, the also cw swing of drivening rod 4 and ratchet 3, make ratchet 3 snap in the depressed part of ratchet 1, make the ratchet stop, rotating shaft 2 is connected with electric switch 8, can rotate electric switch 8 during to lower swing in that weight 5 is centrifugal, reaches the purpose of cutting off host power supply.After staircase started, velometer 7 was started working,, staircase overspeed and messenger chain 6 under the situation of chain rupture, are not provided with check point periodically by Magnetic contact switch on ratchet 1 inwall, form the pulse number of unit time.The pulse number of staircase normal operation can be set, and when escalator took place non-operating reversed or exceeds the speed limit, after microcomputer or speed relay processing relatively, the control signal of safety return circuit, main control system were cut off in output.
The above only is a preferred embodiment of the present utility model; be not so promptly limit scope of patent protection of the present utility model; the equivalent structure transformation that every utilization the utility model specification sheets and accompanying drawing content are done; directly or indirectly be used in other relevant technical fields, all in like manner be included in the protection domain of the present utility model.
Claims (4)
1. the reversal protection device is prevented in the non-manipulation of escalator; comprise weight (5); described weight (5) is inconsistent with the messenger chain (6) of escalator; it is characterized in that: it also comprises ratchet (1) that is lower than messenger chain (6) and the rotating shaft (2) that is higher than messenger chain (6); described ratchet (1) is provided with hollow bulb; hollow bulb is provided with velometer (7); described rotating shaft (2) is connected with electric switch (8); be arranged with ratchet (3) and connecting rod (4) in the described rotating shaft (2), described connecting rod (4) one ends link to each other with weight (5).
2. the reversal protection device is prevented in the non-manipulation of escalator according to claim 1, and it is characterized in that: described velometer (7) is connected with stopping device.
3. the reversal protection device is prevented in the non-manipulation of escalator according to claim 1, it is characterized in that: the depressed part of described ratchet (1) is wider than the width of ratchet (3).
4. the reversal protection device is prevented in the non-manipulation of escalator according to claim 1, and it is characterized in that: described velometer (7) comprises Magnetic contact switch, is provided with check point on described ratchet (1) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205009103U CN201777769U (en) | 2010-08-23 | 2010-08-23 | Non-manipulation anti-reverse rotation protection device for escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205009103U CN201777769U (en) | 2010-08-23 | 2010-08-23 | Non-manipulation anti-reverse rotation protection device for escalator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201777769U true CN201777769U (en) | 2011-03-30 |
Family
ID=43790990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205009103U Expired - Fee Related CN201777769U (en) | 2010-08-23 | 2010-08-23 | Non-manipulation anti-reverse rotation protection device for escalator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201777769U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367148A (en) * | 2011-09-28 | 2012-03-07 | 快意电梯有限公司 | Escalator drive chain breakage braking safety device |
| CN102398845A (en) * | 2011-11-28 | 2012-04-04 | 江南嘉捷电梯股份有限公司 | Anti-reversion device for escalator or moving sidewalk |
| CN102398847A (en) * | 2011-11-28 | 2012-04-04 | 江南嘉捷电梯股份有限公司 | Upward movement anti-reversion device for escalator or moving sidewalk |
| CN104192532A (en) * | 2014-08-28 | 2014-12-10 | 中冶长天国际工程有限责任公司 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
| CN105565138A (en) * | 2016-03-25 | 2016-05-11 | 黄淮学院 | Mechanical anti-reverse-rotation device for escalators |
| CN106458528A (en) * | 2014-06-26 | 2017-02-22 | 三菱电机株式会社 | Safety device for passenger conveyor |
-
2010
- 2010-08-23 CN CN2010205009103U patent/CN201777769U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367148A (en) * | 2011-09-28 | 2012-03-07 | 快意电梯有限公司 | Escalator drive chain breakage braking safety device |
| CN102398845A (en) * | 2011-11-28 | 2012-04-04 | 江南嘉捷电梯股份有限公司 | Anti-reversion device for escalator or moving sidewalk |
| CN102398847A (en) * | 2011-11-28 | 2012-04-04 | 江南嘉捷电梯股份有限公司 | Upward movement anti-reversion device for escalator or moving sidewalk |
| CN102398845B (en) * | 2011-11-28 | 2013-09-04 | 江南嘉捷电梯股份有限公司 | Anti-reversion device for escalator or moving sidewalk |
| CN102398847B (en) * | 2011-11-28 | 2013-10-09 | 江南嘉捷电梯股份有限公司 | Upward movement anti-reversion device for escalator or moving sidewalk |
| CN106458528A (en) * | 2014-06-26 | 2017-02-22 | 三菱电机株式会社 | Safety device for passenger conveyor |
| CN106458528B (en) * | 2014-06-26 | 2019-06-07 | 三菱电机株式会社 | The safety device of passenger conveyors |
| CN104192532A (en) * | 2014-08-28 | 2014-12-10 | 中冶长天国际工程有限责任公司 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
| CN105565138A (en) * | 2016-03-25 | 2016-05-11 | 黄淮学院 | Mechanical anti-reverse-rotation device for escalators |
| CN105565138B (en) * | 2016-03-25 | 2017-04-26 | 黄淮学院 | Mechanical anti-reverse-rotation device for escalators |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20150823 |
|
| EXPY | Termination of patent right or utility model |