CN110002317A - Electronic lifting car deliverance apparatus after elevator host, band-type brake are bad - Google Patents
Electronic lifting car deliverance apparatus after elevator host, band-type brake are bad Download PDFInfo
- Publication number
- CN110002317A CN110002317A CN201910379374.1A CN201910379374A CN110002317A CN 110002317 A CN110002317 A CN 110002317A CN 201910379374 A CN201910379374 A CN 201910379374A CN 110002317 A CN110002317 A CN 110002317A
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- CN
- China
- Prior art keywords
- contact roller
- bad
- band
- mounting base
- type brake
- 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.)
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
-
- 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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/185—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by acting on main ropes or main cables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Electronic lifting car deliverance apparatus after being gone bad the present invention provides a kind of elevator host, band-type brake, comprising: mounting base is mounted in elevator inner wall or rack;First contact roller, is mounted in mounting base, and the first contact roller can be rotated relative to mounting base;Slide can be slidably mounted in mounting base, and slide is horizontal direction with respect to the direction that mounting base is slided;Second contact roller, is mounted on slide, and the first contact roller and the second contact roller are for being matched for clamping tightly wirerope;First driving device is connect with slide, and first driving device is used to that the second contact roller to be driven to move upwards in the side far from or close to wirerope;And rotation drive device, it is mounted in mounting base, rotation drive device is connected with the first contact roller, and rotation drive device is for driving the rotation of the first contact roller.Electronic lifting car deliverance apparatus after elevator host, band-type brake are bad, rescues artificial lifting carriage after solving the problems, such as host part damage in the prior art and there are security risks.Improve rescue efficiency.
Description
Technical field
The present invention relates to elevator accessories, and in particular to electronic lifting car deliverance dress after a kind of elevator host, band-type brake are bad
It sets.
Background technique
In the prior art, traction motor is installed in elevator top, traction motor is mounted on the rack, and rack is fixed
To elevator inner wall or steelframe, traction motor is connected with traction sheave, and traction sheave is bypassed by wirerope, and the suspention of wirerope one end has
Counterweight, the suspention of the wirerope other end have carriage, and traction motor adjusts the height and position of carriage by traction sheave, to realize carriage
Lifting, traction motor and traction sheave etc. constitute the host of elevator.Although can be realized the driving of carriage, the structure
There are still the shortcomings that are as follows:
There is machine room elevator host in computer room, machine-roomless elevator mainframe, since host part is easily damaged, is led in hoistway
It causes carriage to be parked in a certain position, need to manually lift carriage, so that carriage is parked in a certain floor, rescue operation personnel exist from electricity
The risk that stair shaft falls, causes insecurity factor to exist.And low efficiency.
Summary of the invention
The present invention to provide a kind of elevator host, band-type brake it is bad after electronic lifting car deliverance apparatus, solve in the prior art
Artificial lifting carriage is rescued after host part damage and there are problems that security risk.And it is high-efficient.
To achieve the above object, present invention employs the following technical solutions:
Electronic lifting car deliverance apparatus after being gone bad present invention firstly provides a kind of elevator host, band-type brake, comprising:
Mounting base is mounted on elevator inner wall;
First contact roller, is mounted in mounting base, and the first contact roller can be rotated relative to mounting base;
Slide can be slidably mounted in mounting base, and slide is horizontal direction with respect to the direction that mounting base is slided;
Second contact roller, is mounted on slide, and the first contact roller and the second contact roller are for being matched for clamping tightly wirerope;
First driving device is connect with slide, and first driving device is for driving the second contact roller separate or close
The side of wirerope moves upwards;And
Rotation drive device is mounted in mounting base, and rotation drive device is connected with the first contact roller, rotation driving dress
It sets for driving the rotation of the first contact roller.
Electronic lifting car deliverance apparatus after being gone bad the invention also provides a kind of elevator host, band-type brake, comprising:
Pedestal is mounted in elevator inner wall or rack;
Mobile base is mounted on pedestal, and Mobile base can move in the vertical direction with respect to pedestal;
First clamping device, is mounted on Mobile base, and the first clamping device is used for clamping steel wire rope;
Drawstring, one end are fixed with Mobile base;
Hoist engine is mounted on above the first clamping device and Mobile base, the hoist engine convolution drawstring other end, hoist engine phase
Pedestal is fixedly mounted;
Retracting device is mounted below the first clamping device and Mobile base, and the output end of retracting device is used and Mobile base
Connection, retracting device for reducing Mobile base position;And
Second clamping device is mounted on above hoist engine, and the second clamping device is mounted on pedestal, the second clamping device
Clamping steel wire rope when for the decline of the first clamping device.
Compared with the prior art, the invention has the following beneficial effects:
(1) avoid in the prior art manual rescue device be merely able to move downward carriage using force amplificatory structure and cannot
The phenomenon that moving upwards realizes and is aligned after running in carriage with neighbouring floor, and realization is facilitated to rescue.
(2) the phenomenon that pit does not have the operating instruction and safety notice of manual emergency jiggering deliverance apparatus is avoided to go out
It is existing.
(3) avoid opening a sluice gate in the prior art jiggering auxiliary tool it is incomplete and be also the absence of in routine check should be standby it is standby
Part and lead to temporarily the phenomenon that looking for tool everywhere.
(4) it avoids not knowing whether hand turning tool meets national standard and lead to hand turning tool not for disc type in the prior art
Problem convenient to use.
(5) maintenance personal is avoided to install to manual emergency rescue apparatus structure, using unfamiliar phenomenon.
(6) it avoids manufacturer's supply of material in the prior art uneven and causes to be difficult to the phenomenon that rescuing.
(7) it avoids in existing and technology at all without manual emergency rescue operation device and only dependent on urgent electronic fortune
The problem of row mechanism and host, band-type brake bad when, cannot achieve rescue.
(8) even if some products are also required to maintenance personal in top layer and bottom when the rescue of machine room manual emergency has its device
Close fit can overcome difficulties between hole, and the present invention solves the pit rescue following defect of bring: not knowing between maintenance personal
How to contact whether open a sluice gate, and if with mobile phone when cannot be guaranteed that mobile phone electricity does not lack or signal is not obstructed.
(9) (because bracing wire is too loose, tension or bracing wire fracture), brake failure keeps carriage direct in the prior art for solution
It rushes at pit and leads to the problem for jeopardizing maintenance personal's safety.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
The structural schematic diagram of electronic lifting car deliverance apparatus after Fig. 1 goes bad for elevator host, band-type brake in embodiment 1;
The structural schematic diagram of electronic lifting car deliverance apparatus after Fig. 2 goes bad for elevator host, band-type brake in embodiment 2;
Fig. 3 is the cross-sectional view of first driving device or the second driving device.
Appended drawing reference: mounting base 1, the first contact roller 2, slide 3, the second contact roller 4, first driving device 5, drive rod
51, permanent magnet 52, shell 53, electromagnet 54, spring 55, wirerope 6, pedestal 71, Mobile base 72, the first clamping device 73, drawing
Rope 74, hoist engine 75, retracting device 76, link block 761, tension spring 762, the second clamping device 77, the first compact heap 771, second
Compact heap 772, the second driving device 773.
Specific embodiment
In order to make the present invention realize technological means, creation characteristic, reach purpose and effect more clearly and be apparent to,
The present invention is further elaborated with reference to the accompanying drawings and detailed description:
Embodiment 1:
As shown in Figure 1 and Figure 3, electronic lifting car deliverance dress after being gone bad the invention proposes a kind of elevator host, band-type brake
It sets, comprising:
Mounting base 1 is mounted in elevator inner wall or rack;
First contact roller 2, is mounted in mounting base 1, and the first contact roller 2 can be rotated relative to mounting base 1;
Slide 3 can be slidably mounted in mounting base 1, and slide 3 is horizontal direction with respect to the direction that mounting base 1 is slided;
Second contact roller 4, is mounted on slide 3, and the first contact roller 2 and the second contact roller 4 are for being matched for clamping tightly steel wire
Rope 6;
First driving device 5 is connect with slide 3, first driving device 5 for driving the second contact roller 4 separate or
Side close to wirerope 6 moves upwards;And
Rotation drive device (not shown) is mounted in mounting base 1, rotation drive device and 2 phase of the first contact roller
Even, rotation drive device is for driving the rotation of the first contact roller 2.
In order to improve friction dynamics, guarantee there is sufficiently large power to promote carriage, the first contact roller 2 and the second contact roller 4
At least three pairs, every one first contact roller 2 has been correspondingly connected with a rotation drive device, and all second contact rollers 4 are respectively mounted one
On slide 3.Reduce in order to facilitate all second contact rollers 4 of driving so that the second contact roller 4 is installed on a slide 3
The use of first driving device 5.
In order to realize the simple first driving device 5 of design structure, and first driving device 5 is small in size, avoid occupy compared with
Large space influences the operation of carriage etc., and first driving device 5 includes: drive rod 51, permanent magnet 52, shell 53 and electromagnet
54, shell 53 is fixed in mounting base 1, and installation cavity is offered in shell 53, and 51 one end of drive rod stretches in installation cavity and solid
Fixed to permanent magnet 52,51 other end of drive rod is fixed to slide 3, and electromagnet 54 is equipped in shell 53, and electromagnet 54 is installed
In installation cavity, electromagnet 54 is located at permanent magnet 52 away from 51 side of drive rod, after electromagnet 54 is powered electromagnet 54 with forever
Magnet 52 is mutually exclusive.
In order to avoid causing the second compact heap 772 to grind due to the second contact roller 4 is contacted with wirerope 6 when operating normally
Damage avoids not clamping wirerope 6 with the cooperation of the first contact roller 2 after wearing because of the second contact roller 4, and first driving device 5 is also
It include: spring 55,55 one end of spring is fixed to drive rod 51, and 55 other end of spring is fixed to installation cavity wall, in 55 bullet of spring
The second contact roller 4 is not contacted with wirerope 6 under power.
In order to provide structure simple rotation drive device, rotation drive device includes motor, and motor is mounted on mounting base 1
On, the rotary shaft of motor and the first contact roller 2 are fixed.
Embodiment 2:
The present embodiment the difference from embodiment 1 is that: due to be in embodiment 1 driving the first contact roller 2 rotation after first
Contact roller 2 pulls carriage by friction, thus in embodiment 1 can pulling force be not it is very big, may be because of the first pressure
2 friction dynamics of bearing up pulley are insufficient and carriage is caused to decline under self gravity, but the structure of embodiment 1 is simple, can once lift
Distance is big, facilitates production, the shortcomings that in order to avoid embodiment 1, therefore realized in embodiment 2 clamp after pull, execute effect
Fruit is more preferable.
As shown in FIG. 2 and 3, electronic lifting car deliverance after a kind of elevator host, band-type brake of the present embodiment proposition are bad
Device, comprising:
Pedestal 71 is mounted in elevator inner wall or rack;
Mobile base 72 is mounted on pedestal 71, and Mobile base 72 can move in the vertical direction with respect to pedestal 71;
First clamping device 73, is mounted on Mobile base 72, and the first clamping device 73 is used for clamping steel wire rope 6;
Drawstring 74, one end and Mobile base 72 are fixed;
Hoist engine 75, is mounted on 72 top of the first clamping device 73 and Mobile base, and 75 convolution drawstring 74 of hoist engine is another
End, hoist engine 75 are fixedly mounted with respect to pedestal 71;
Retracting device 76, is mounted on 72 lower section of the first clamping device 73 and Mobile base, and the output end of retracting device 76 is used
Connect with Mobile base 72, retracting device 76 for reducing Mobile base 72 position;And
Second clamping device 77 is mounted on 75 top of hoist engine, and the second clamping device 77 is mounted on pedestal 71, and second
Clamping steel wire rope 6 when clamping device 77 declines for the first clamping device 73.Since hoist engine 75 is only capable of promoting one section of carriage, it is
Continue to increase, needs for carriage to be stabilized to some position, therefore carriage is stabilized to some position using the second clamping device 77
It sets, at the clamping for then replacing the first clamping device 73, then hoist engine 75 pulls on wirerope 6, to increase carriage, retracts
Device 76 is in order to reduce the first clamping device 73, to replace at the clamping of the first clamping device 73, so that the first folder
Tight device 73, hoist engine 75, drawstring 74 and retracting device 76 cooperate, and continue to increase carriage.
In order to guarantee clamping dynamics, the first clamping device 73 and the second clamping device 77 include:
First compact heap 771, is fixedly mounted on pedestal 71;
Second compact heap 772, can be slidably mounted on pedestal 71, and the opposite pedestal 71 of the second compact heap 772 slides
Direction is horizontal direction, the first compact heap 771 and the second compact heap 772 for being matched for clamping tightly wirerope 6;And
Second driving device 773 is connect with the second compact heap 772, and first driving device 5 is for driving the second contact roller
4 move upwards in the side far from or close to wirerope 6.
In order to realize simple second driving device 773 of design structure, and the second driving device 773 is small in size, avoids accounting for
The operation of carriage etc. is influenced with larger space, the second driving device 773 includes: drive rod 51, permanent magnet 52, shell 53 and electricity
Magnet 54, shell 53 are fixed on pedestal 71, offer installation cavity in shell 53,51 one end of drive rod stretch in installation cavity and
It is fixed to permanent magnet 52,51 other end of drive rod is fixed to sliding block, and electromagnet 54 is equipped in shell 53, and electromagnet 54 is installed
In installation cavity, electromagnet 54 is located at permanent magnet 52 away from 51 side of drive rod, after electromagnet 54 is powered electromagnet 54 with forever
Magnet 52 is mutually exclusive.
In order to avoid causing the second compact heap 772 to grind due to the second compact heap 772 is contacted with wirerope 6 when operating normally
Damage avoids not clamping wirerope 6 with the cooperation of the first compact heap 771 after wearing because of the second compact heap 772, the second driving device
773 further include: spring 55,55 one end of spring are fixed to drive rod 51, and 55 other end of spring is fixed to installation cavity wall, in spring
The second compact heap 772 is not contacted with wirerope 6 under 55 elastic force.
In order to reduce the use of power source, the use of energy is reduced, retracting device 76 includes: link block 761 and tension spring
762,762 one end of tension spring is connect with Mobile base 72, and 762 other end of tension spring and link block 761 are fixed, and the installation of link block 761 is present
On body 71.Since the first clamping device 73 has gravity, the first clamping device 73, which does not need very powerful power, to be declined,
Retracting device 76 is set, avoids the problem of the first clamping device 73 can not be successfully decline because of frictional force effect, and reduce
The use of energy and power source, is good for the environment.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (10)
- Electronic lifting car deliverance apparatus after 1. a kind of elevator host, band-type brake are bad characterized by comprisingMounting base is mounted on elevator inner wall or mainframe;First contact roller, is mounted in mounting base, and the first contact roller can be rotated relative to mounting base;Slide can be slidably mounted in mounting base, and slide is horizontal direction with respect to the direction that mounting base is slided;Second contact roller, is mounted on slide, and the first contact roller and the second contact roller are for being matched for clamping tightly wirerope;First driving device is connect with slide, and first driving device is for driving the second contact roller in separate or close steel wire The side of rope moves upwards;And rotation drive device, it is mounted in mounting base, rotation drive device and the first contact roller phase Even, rotation drive device is for driving the rotation of the first contact roller.
- Electronic lifting car deliverance apparatus after 2. elevator host according to claim 1, band-type brake are bad, which is characterized in that the One contact roller and at least three pairs of the second contact roller, every one first contact roller has been correspondingly connected with a rotation drive device, owns Second contact roller is respectively mounted on a slide.
- Electronic lifting car deliverance apparatus after 3. elevator host according to claim 2, band-type brake are bad, which is characterized in that the One driving device includes: drive rod, permanent magnet, shell and electromagnet, and shell is fixed in mounting base, and peace is offered in shell It behave affectedly, drive rod one end stretches in installation cavity and is fixed to permanent magnet, and the drive rod other end is fixed to slide, pacifies in shell Equipped with electromagnet, electromagnet is mounted in installation cavity, and electromagnet is located at permanent magnet away from drive rod side, after electromagnet is powered Electromagnet is mutually exclusive with permanent magnet.
- Electronic lifting car deliverance apparatus after 4. elevator host according to claim 3, band-type brake are bad, which is characterized in that the One driving device further include: spring, spring one end are fixed to drive rod, and the spring other end is fixed to installation cavity wall, in spring The second contact roller is not contacted with wirerope under elastic force.
- 5. electronic lifting car deliverance apparatus after elevator host according to any one of claims 1 to 4, band-type brake are bad, special Sign is that rotation drive device includes motor, and motor is mounted in mounting base, and the rotary shaft of motor is fixed with the first contact roller.
- Electronic lifting car deliverance apparatus after 6. a kind of elevator host, band-type brake are bad characterized by comprisingPedestal is mounted on elevator inner wall or mainframe;Mobile base is mounted on pedestal, and Mobile base can move in the vertical direction with respect to pedestal;First clamping device, is mounted on Mobile base, and the first clamping device is used for clamping steel wire rope;Drawstring, one end are fixed with Mobile base;Hoist engine is mounted on above the first clamping device and Mobile base, and the hoist engine convolution drawstring other end, hoist engine is with respect to seat Body is fixedly mounted;Retracting device is mounted below the first clamping device and Mobile base, and the output end of retracting device is connect with Mobile base, Retracting device for reducing Mobile base position;AndSecond clamping device is mounted on above hoist engine, and the second clamping device is mounted on pedestal, and the second clamping device is used for Clamping steel wire rope when first clamping device resets decline.
- Electronic lifting car deliverance apparatus after 7. elevator host according to claim 6, band-type brake are bad, which is characterized in that the One clamping device and the second clamping device include:First compact heap, is fixedly mounted on pedestal;Second compact heap can be slidably mounted on pedestal, and the second compact heap is horizontal direction with respect to the direction that pedestal slides, First compact heap and the second compact heap are for being matched for clamping tightly wirerope;AndSecond driving device is connect with the second compact heap, and first driving device is for driving the second contact roller separate or lean on The side of nearly wirerope moves upwards.
- Electronic lifting car deliverance apparatus after 8. elevator host according to claim 7, band-type brake are bad, which is characterized in that the Two driving devices include: drive rod, permanent magnet, shell and electromagnet, and shell is fixed on pedestal, and installation is offered in shell Chamber, drive rod one end stretch in installation cavity and are fixed to permanent magnet, and the drive rod other end is fixed to sliding block, installs in shell There is electromagnet, electromagnet is mounted in installation cavity, and electromagnet is located at permanent magnet and deviates from drive rod side, electricity after electromagnet is powered Magnet is mutually exclusive with permanent magnet.
- Electronic lifting car deliverance apparatus after 9. elevator host according to claim 8, band-type brake are bad, which is characterized in that the Two driving devices further include: spring, spring one end are fixed to drive rod, and the spring other end is fixed to installation cavity wall, in spring The second compact heap is not contacted with wirerope under elastic force.
- Electronic lifting car deliverance apparatus after 10. elevator host according to claim 6, band-type brake are bad, which is characterized in that draw Return device includes: link block and tension spring, and tension spring one end is connect with Mobile base, and the tension spring other end is fixed with link block, link block It is mounted on pedestal.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910379374.1A CN110002317A (en) | 2019-05-08 | 2019-05-08 | Electronic lifting car deliverance apparatus after elevator host, band-type brake are bad |
CN201910835021.8A CN111908286A (en) | 2019-05-08 | 2019-09-05 | Rescue device for electric lift car after damage of elevator main machine and band-type brake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910379374.1A CN110002317A (en) | 2019-05-08 | 2019-05-08 | Electronic lifting car deliverance apparatus after elevator host, band-type brake are bad |
Publications (1)
Publication Number | Publication Date |
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CN110002317A true CN110002317A (en) | 2019-07-12 |
Family
ID=67176142
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910379374.1A Withdrawn CN110002317A (en) | 2019-05-08 | 2019-05-08 | Electronic lifting car deliverance apparatus after elevator host, band-type brake are bad |
CN201910835021.8A Pending CN111908286A (en) | 2019-05-08 | 2019-09-05 | Rescue device for electric lift car after damage of elevator main machine and band-type brake |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910835021.8A Pending CN111908286A (en) | 2019-05-08 | 2019-09-05 | Rescue device for electric lift car after damage of elevator main machine and band-type brake |
Country Status (1)
Country | Link |
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CN (2) | CN110002317A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111908286A (en) * | 2019-05-08 | 2020-11-10 | 李洪英 | Rescue device for electric lift car after damage of elevator main machine and band-type brake |
US11492232B2 (en) * | 2018-08-20 | 2022-11-08 | Otis Elevator Company | Elevator balance weight rescue device, an elevator and an elevator balance weight rescue method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2219900B3 (en) * | 1973-03-01 | 1978-05-05 | Barot Roger | |
FR2440333A1 (en) * | 1978-10-31 | 1980-05-30 | Tealdi Ange | Safety system for lift stabilisation - uses cable suspended from oscillating lever and attached to ground via pulleys |
WO2005040026A1 (en) * | 2003-10-07 | 2005-05-06 | Otis Elevator Company | Elevator rescue drive mechanism |
EP1669315A1 (en) * | 2004-12-13 | 2006-06-14 | Inventio Ag | Method and emergency drive device for driving an elevator car |
US7392885B2 (en) * | 2006-08-14 | 2008-07-01 | Chiu Nan Wang | Emergency escape apparatus for elevator |
EP3162751A1 (en) * | 2015-10-27 | 2017-05-03 | Kone Corporation | An apparatus for operating an elevator car of an elevator system and a method for operating the elevator car |
CN106865378B (en) * | 2017-03-30 | 2019-01-01 | 厦门安利倍特设备有限公司 | Automatic lifting rescue aid for lift car |
CN110002317A (en) * | 2019-05-08 | 2019-07-12 | 李洪英 | Electronic lifting car deliverance apparatus after elevator host, band-type brake are bad |
CN210682882U (en) * | 2019-05-08 | 2020-06-05 | 李洪英 | Rescue device for electric lift car after damage of elevator main machine and band-type brake |
-
2019
- 2019-05-08 CN CN201910379374.1A patent/CN110002317A/en not_active Withdrawn
- 2019-09-05 CN CN201910835021.8A patent/CN111908286A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11492232B2 (en) * | 2018-08-20 | 2022-11-08 | Otis Elevator Company | Elevator balance weight rescue device, an elevator and an elevator balance weight rescue method |
CN111908286A (en) * | 2019-05-08 | 2020-11-10 | 李洪英 | Rescue device for electric lift car after damage of elevator main machine and band-type brake |
Also Published As
Publication number | Publication date |
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CN111908286A (en) | 2020-11-10 |
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Application publication date: 20190712 |