CN104803247A - Elevator maintenance safety device - Google Patents
Elevator maintenance safety device Download PDFInfo
- Publication number
- CN104803247A CN104803247A CN201510209049.2A CN201510209049A CN104803247A CN 104803247 A CN104803247 A CN 104803247A CN 201510209049 A CN201510209049 A CN 201510209049A CN 104803247 A CN104803247 A CN 104803247A
- Authority
- CN
- China
- Prior art keywords
- anchor shaft
- safety device
- elevator
- overhaul
- reset switch
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0043—Devices enhancing safety during maintenance
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- Elevator Control (AREA)
Abstract
The invention discloses an elevator maintenance safety device. The elevator maintenance safety device comprises a car frame upper beam, a fixing shaft, a fixing plate and an inserting hole, wherein the fixing shaft can be glidingly arranged on the car frame upper beam; the fixing plate is fixed to a shaft and corresponds to the fixing shaft; the inserting hole is formed in the fixing plate for the fixing shaft to be inserted; an electric automatic reset switch which can be triggered to transmit an elevator safety circuit-off signal is fixedly arranged on the car frame upper beam and is provided with a contact which can be automatically bounced to be reset; the electric automatic reset switch is positioned on the side, in the movement direction in which the fixing shaft is outwards glidingly inserted into the inserting hole; when the fixing shaft slides, the side surface of the fixing shaft laterally compresses and triggers the electric automatic reset switch; a groove for the contact to reset and bounce is also formed in the side surface of the fixing shaft. Due to the fact that the fixing shaft is matched with the electric automatic reset switch, only after the fixing shaft is completely plugged out of the inserting hole in the fixing plate and the electric automatic reset switch enters the groove, automatic reset is performed, an elevator safety circuit is electrified, and the elevator maintenance safety device is safe and reliable.
Description
Technical field
The present invention relates to safety device for overhaul of elevator.
Background technology
In prior art, safety device for overhaul of elevator disclosed in Chinese patent CN102372209A, adopt Non auto-reset switch, Non auto-reset switch is touched by the touch part with many places bending be connected on plunger, plunger self lateral surface is offered the chute extended along direction of slip, and the bottom land at chute two ends all forms the pit inserted for latch, latch provides elastic-restoring force to make latch stably insert in chute or pit by elastic component, by coordinating of latch and chute, plunger drives touch part oriented sliding on permanent seat, and touch Non auto-reset switch, make elevator safety loop port immediately, and in the jack of the not good enough adapter plate of plunger, reach the relative fixing of car and guide rail, ensure that elevator can not accidental activation and the plunger that fractures from physical construction and electric wiring like this, eliminate safe hidden trouble.Visible, the safety device for overhaul of elevator of prior art not only needs the touch part of many places bending, and need on plunger, offer chute and pit, and the structure of elastic component and latch is set on permanent seat, cause the integral structure more complicated of safety device for overhaul of elevator, manufacturing cost is higher, as long as one of them failsafety just safety misadventure may occur, functional reliability is lower.
Summary of the invention
In view of this, the object of this invention is to provide that a kind of structure is simple, manufacturing cost is lower, work failure-free safety device for overhaul of elevator more.
For achieving the above object, the invention provides a kind of safety device for overhaul of elevator, comprise sedan-chair frame upper beam, be slidably mounted in the anchor shaft on described sedan-chair frame upper beam, be fixed on adapter plate corresponding with described anchor shaft on hoistway, be opened on described adapter plate for the jack that described anchor shaft inserts, it is characterized in that: described sedan-chair frame upper beam is fixedly installed the electric automatic reset switch sending after can being touched and disconnect elevator safety loop signal, described electric automatic reset switch has the contact automatically can upspring and reset, described electric automatic reset switch is positioned at described anchor shaft and outwards slides the side of the sense of motion inserting described jack, described anchor shaft is lateral surface compressing touch described electric automatic reset switch when sliding, the side of described anchor shaft also offers and holds described contact and to reset the groove of upspringing, described safety device for overhaul of elevator has the first mode of operation and the second mode of operation, when described safety device for overhaul of elevator is in the first mode of operation, described anchor shaft inserts described jack, the lateral surface compressing of described anchor shaft also touches described electric automatic reset switch, when described safety device for overhaul of elevator is in the second mode of operation, described anchor shaft departs from described jack, and the contact of described electric automatic reset switch resets and upsprings and be arranged in described groove.
Preferably, described anchor shaft is arranged on described sedan-chair frame upper beam by support connecting piece, and described support connecting piece is fixed on described sedan-chair frame upper beam, and described anchor shaft is slidably through described support connecting piece.
Further preferably, described support connecting piece is also provided with perforation, the locking piece described anchor shaft and described sedan-chair frame upper beam are fixed is provided with in described perforation, described anchor shaft offers bar-shaped trough, the its length of described bar-shaped trough extends along described anchor shaft direction of slip, described bar-shaped trough is along the one end in its length direction near described jack, and the other end is away from described jack, and described locking piece is connected with described sedan-chair frame upper beam through after described bar-shaped trough.
In a particular embodiment, when described safety device for overhaul of elevator is in the second mode of operation, described locking piece is positioned at the one end near described jack on described bar-shaped trough.
As a kind of concrete embodiment, described locking piece is bolt.
Preferably, described groove is V-type groove.
Preferably, described adapter plate is fixed on the car guide rail on well enclosure.
Owing to adopting technique scheme, compared to prior art, the present invention has the following advantages: in elevator safety apparatus for examination and repair of the present invention, by the side of anchor shaft and coordinating of electric automatic reset switch, when anchor shaft is in sliding process, the side of anchor shaft compresses electric automatic reset switch all the time, guarantees that elevator safety loop is in off-state always, and car cannot meet accident movement; Complete at overhauling elevator, when needing to recover normal condition, anchor shaft is pulled out jack, when the contact of and if only if electric automatic reset switch enters in the groove on the side of anchor shaft, electric automatic reset switch automatically resets, elevator safety loop is connected, and illustrate that anchor shaft 3 has pulled out and put in place, elevator can normally run; Structure of the present invention is more simple, low cost of manufacture, and safe and reliable.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention when the first mode of operation.
Fig. 2 is the front view of the present invention when the second mode of operation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Embodiment one
Refer to Fig. 1 and Fig. 2, a kind of safety device for overhaul of elevator, comprise sedan-chair frame upper beam 6, be slidably mounted in the anchor shaft 3 on sedan-chair frame upper beam 6, be fixed on adapter plate 4 corresponding with anchor shaft 3 on hoistway, be opened on adapter plate 4 for the jack that anchor shaft 3 inserts, sedan-chair frame upper beam 6 is fixedly installed the electric automatic reset switch 1 sending after can being touched and disconnect elevator safety loop signal, electric automatic reset switch 1 has the contact automatically can upspring and reset, electric automatic reset switch 1 is positioned at the side of the outside sense of motion inserting jack that slides of anchor shaft 3, in the present embodiment, anchor shaft 3 horizontally slips setting in the horizontal direction, electric automatic reset switch 1 is positioned at the side, below of anchor shaft 3.Anchor shaft 3 is lateral surface compressing touch electric automatic reset switch 1 when sliding, and the lower end side of anchor shaft 3 also offers the contact holding electric automatic reset switch 1 and to reset the groove 31 of upspringing.
This safety device for overhaul of elevator has the first mode of operation and the second mode of operation, when safety device for overhaul of elevator is in the first mode of operation, anchor shaft 3 inserts described jack, and the lower end side of anchor shaft 3 compresses and touches electric automatic reset switch 1, and now elevator safety loop disconnects; When safety device for overhaul of elevator is in the second mode of operation, anchor shaft 3 departs from described jack, and the contact of electric automatic reset switch 1 resets and upsprings and be arranged in groove 31.When anchor shaft 3 is between the first mode of operation and the second mode of operation, no matter it is in the process inserting jack or exits jack and be retracted in the process in sedan-chair frame upper beam 6, electric automatic reset switch 1 be all fixed axle 3 lower end side compress, now the safety return circuit of elevator is in port status all the time.Only have when anchor shaft 3 extracts jack completely, the groove 31 of anchor shaft 3 matches with electric automatic reset switch 1, electric automatic reset switch 1 can be made to have the space of reset, now the safety return circuit of elevator is just connected again, avoid after because anchor shaft 3 does not extract withdrawal completely, elevator brings into operation, anchor shaft 3 is interfered with miscellaneous part in hoistway and fractures.
Wherein, the groove 31 on anchor shaft 3 is V-type groove.The opening of V-type groove is in the shape of opening gradually, and its side is guiding surface, is conducive to electric automatic reset switch and departs from this V-type groove.Adapter plate 4 is fixed on the car guide rail on well enclosure.
In the present embodiment, anchor shaft 3 is arranged on sedan-chair frame upper beam 6 by support connecting piece 2, and support connecting piece 2 is fixed on sedan-chair frame upper beam 6, and anchor shaft 3 is slidably through support connecting piece 2.As shown in Figure 1, support connecting piece 2 adopts U-shaped bending plate, is welded on sedan-chair frame upper beam 6, forms the chute that left and right is through, and anchor shaft 3 freely slidably passes through this chute left.
Support connecting piece 2 is also provided with perforation, the locking piece 5 anchor shaft 3 and sedan-chair frame upper beam 6 are fixed is provided with in described perforation, anchor shaft 3 offers bar-shaped trough 32, the its length of bar-shaped trough 32 extends along anchor shaft 32 direction of slip, bar-shaped trough 32 along the one end in its length direction near the jack of adapter plate 4, the other end is away from the jack of adapter plate 4, and locking piece 5 is connected with sedan-chair frame upper beam 6 through after bar-shaped trough 32.When safety device for overhaul of elevator is in the second mode of operation, locking piece 5 is positioned at the one end near adapter plate 4 jack on bar-shaped trough 32.As shown in Figure 2, when anchor shaft 3 extracts the jack of adapter plate 4, slide until when locking piece 5 offsets with the left end of bar-shaped trough 32 to the right, electric automatic reset switch 1 is just in time arranged in groove 31, can know that anchor shaft 3 is extracted completely with feel very clearly during operator's drawing anchor shaft 3, now elevator safety loop is just connected again, and elevator enters normal operating condition.
When anchor shaft 3 is not extracted completely, electric automatic reset switch 1 is in compacted state, elevator safety loop disconnects, avoiding problems maintainer does not pull out when putting in place by anchor shaft 3, normally drive ladder to run, anchor shaft 3 interferes situation with miscellaneous part in hoistway, and avoids anchor shaft 3 and do not pull out when putting in place, car meets accident movement, and the personnel that cause injure.
In the present embodiment, locking piece 5 is hex bolt.When anchor shaft 3 insert completely adapter plate 4 jack or after extracting jack completely, by tightening locking piece 5, anchor shaft 3 and sedan-chair frame upper beam 6 can be made to be fixed together, to avoid maloperation.
The safety device for overhaul of elevator of the present embodiment, by the side of anchor shaft 3 and coordinating of electric automatic reset switch 1, when anchor shaft 3 is in sliding process, electric automatic reset switch 1 is all triggered always, guarantees that elevator safety loop is in off-state always; Complete at overhauling elevator, when needing to recover normal condition, anchor shaft 3 is pulled out jack, and when the contact of and if only if electric automatic reset switch 1 enters in the groove 31 on the side of anchor shaft 3, electric automatic reset switch 1 automatically resets, elevator safety loop is connected, elevator can normally run, and therefore the present embodiment structure is simple, low cost of manufacture, simple to operate, safe and reliable.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. a safety device for overhaul of elevator, comprise sedan-chair frame upper beam, be slidably mounted in the anchor shaft on described sedan-chair frame upper beam, be fixed on adapter plate corresponding with described anchor shaft on hoistway, be opened on described adapter plate for the jack that described anchor shaft inserts, it is characterized in that: described sedan-chair frame upper beam is fixedly installed the electric automatic reset switch sending after can being touched and disconnect elevator safety loop signal, described electric automatic reset switch has the contact automatically can upspring and reset, described electric automatic reset switch is positioned at described anchor shaft and outwards slides the side of the sense of motion inserting described jack, described anchor shaft is lateral surface compressing touch described electric automatic reset switch when sliding, the side of described anchor shaft also offers and holds described contact and to reset the groove of upspringing, described safety device for overhaul of elevator has the first mode of operation and the second mode of operation, when described safety device for overhaul of elevator is in the first mode of operation, described anchor shaft inserts described jack, the lateral surface compressing of described anchor shaft also touches described electric automatic reset switch, when described safety device for overhaul of elevator is in the second mode of operation, described anchor shaft departs from described jack, and the contact of described electric automatic reset switch resets and upsprings and be arranged in described groove.
2. a kind of safety device for overhaul of elevator according to claim 1, it is characterized in that: described anchor shaft is arranged on described sedan-chair frame upper beam by support connecting piece, described support connecting piece is fixed on described sedan-chair frame upper beam, and described anchor shaft is slidably through described support connecting piece.
3. a kind of safety device for overhaul of elevator according to claim 2, it is characterized in that: described support connecting piece is also provided with perforation, the locking piece described anchor shaft and described sedan-chair frame upper beam are fixed is provided with in described perforation, described anchor shaft offers bar-shaped trough, the its length of described bar-shaped trough extends along described anchor shaft direction of slip, described bar-shaped trough along the one end in its length direction near described jack, the other end is away from described jack, and described locking piece is connected with described sedan-chair frame upper beam through after described bar-shaped trough.
4. a kind of safety device for overhaul of elevator according to claim 3, is characterized in that: when described safety device for overhaul of elevator is in the second mode of operation, and described locking piece is positioned at the one end near described jack on described bar-shaped trough.
5. a kind of safety device for overhaul of elevator according to claim 3 or 4, is characterized in that: described locking piece is bolt.
6. a kind of safety device for overhaul of elevator according to claim 1, is characterized in that: described groove is V-type groove.
7. a kind of safety device for overhaul of elevator according to claim 1, is characterized in that: described adapter plate is fixed on the car guide rail on well enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209049.2A CN104803247A (en) | 2015-04-29 | 2015-04-29 | Elevator maintenance safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209049.2A CN104803247A (en) | 2015-04-29 | 2015-04-29 | Elevator maintenance safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104803247A true CN104803247A (en) | 2015-07-29 |
Family
ID=53688526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510209049.2A Pending CN104803247A (en) | 2015-04-29 | 2015-04-29 | Elevator maintenance safety device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104803247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010502A (en) * | 2017-04-18 | 2017-08-04 | 江南嘉捷电梯股份有限公司 | A kind of car fixed mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372209A (en) * | 2011-09-29 | 2012-03-14 | 苏州富士电梯有限公司 | Safety device for elevator overhaul |
| CN202625538U (en) * | 2012-02-27 | 2012-12-26 | 希姆斯电梯(中国)有限公司 | Elevator maintenance safety device |
| JP2013245025A (en) * | 2012-05-23 | 2013-12-09 | Hitachi Ltd | Inspection device of double deck elevator |
| CN203922352U (en) * | 2014-07-07 | 2014-11-05 | 苏州速菱电梯有限公司 | A kind of elevator hand latching device |
| CN204111101U (en) * | 2014-09-12 | 2015-01-21 | 夏争先 | Elevator locking protecting device |
| CN204643418U (en) * | 2015-04-29 | 2015-09-16 | 江南嘉捷电梯股份有限公司 | A kind of safety device for overhaul of elevator |
-
2015
- 2015-04-29 CN CN201510209049.2A patent/CN104803247A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372209A (en) * | 2011-09-29 | 2012-03-14 | 苏州富士电梯有限公司 | Safety device for elevator overhaul |
| CN202625538U (en) * | 2012-02-27 | 2012-12-26 | 希姆斯电梯(中国)有限公司 | Elevator maintenance safety device |
| JP2013245025A (en) * | 2012-05-23 | 2013-12-09 | Hitachi Ltd | Inspection device of double deck elevator |
| CN203922352U (en) * | 2014-07-07 | 2014-11-05 | 苏州速菱电梯有限公司 | A kind of elevator hand latching device |
| CN204111101U (en) * | 2014-09-12 | 2015-01-21 | 夏争先 | Elevator locking protecting device |
| CN204643418U (en) * | 2015-04-29 | 2015-09-16 | 江南嘉捷电梯股份有限公司 | A kind of safety device for overhaul of elevator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010502A (en) * | 2017-04-18 | 2017-08-04 | 江南嘉捷电梯股份有限公司 | A kind of car fixed mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |