CN113682929A - Door opening maintaining system applicable to elevator - Google Patents
Door opening maintaining system applicable to elevator Download PDFInfo
- Publication number
- CN113682929A CN113682929A CN202111009723.4A CN202111009723A CN113682929A CN 113682929 A CN113682929 A CN 113682929A CN 202111009723 A CN202111009723 A CN 202111009723A CN 113682929 A CN113682929 A CN 113682929A
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- CN
- China
- Prior art keywords
- door
- plate
- elevator
- touch
- locking
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
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- 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
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Elevator Door Apparatuses (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention belongs to the technical field of elevator equipment, and provides a door opening retaining system applicable to an elevator, which comprises a first locking device, a second locking device and a third locking device, wherein the first locking device comprises a touch plate, a thrust lock assembly, a transmission rope and a stop block; the touch plate is arranged on the door plate and can synchronously slide along with the door plate until the touch plate is contacted with the thrust lock assembly; the thrust lock assembly is provided with a movable plate, and the movable plate is located in a first operation state and has a relative position distance with the movable plate when located in a second operation state; one end of the transmission rope is connected with the movable plate, the other end of the transmission rope is connected to the stop block, the stop block can be arranged on the door plate in a swinging mode, the stop block is provided with a blocking plate, and when the door plate is closed, the blocking plate can move to the position in front of the movement track of the door pulley of the door plate. The invention can effectively overcome the self-closing force of the landing door to ensure the opening state of the elevator door system in a required state, so that the elevator is safer and more reliable to use.
Description
Technical Field
The invention belongs to the technical field of elevator equipment, and particularly relates to a door opening holding system applicable to an elevator.
Background
After the traditional elevator door is opened, torque is output only by means of electromagnetic blocking force of a door motor, so that the elevator door is kept in an open state. However, the landing door has a certain self-closing capability, and the landing door needs to overcome the frictional resistance of the car door in addition to the frictional force corresponding to the weight of the landing door during self-closing movement. And when the landing door is heavier, for example, the landing door is a fireproof door, a glass door and a soundproof door, the self-closing force of the corresponding landing door is set to be very large, and when the self-closing force of the landing door is larger than the sum of the frictional resistance of the car door and the landing door, the car door is closed under the driving of the self-closing force of the landing door when the door system is in a power-off state. The conventional elevator door cannot prevent the door from being closed in the power-off state.
When a fire alarm power failure occurs in a building, the running elevator loses power and stops, then the standby power supply is started to move the lift car to a nearby floor to open the door and release people, the door system stops supplying power, and if the door is opened and then automatically closed, people trapped in the lift car cannot be smoothly evacuated.
When maintenance personnel need to enter the lift car for maintenance, in order to keep the door open for a long time, the power supply of the door system is cut off, and if the self-closing force of the landing door is large, the lift car door can be automatically closed along with the self-closing force; in this regard, it is common practice for maintenance personnel to place a piece of rubber in the groove and prevent the door from closing by the friction between the groove and the rubber. The rubber is usually specially made, and is very inconvenient to use because a professional carries the rubber with the rubber.
Disclosure of Invention
In order to overcome the above disadvantages of the prior art, an object of the present invention is to provide an open door maintaining system applicable to an elevator, which can effectively overcome the self-closing force of a landing door to ensure the open state of an elevator door system in a required state, so that the elevator can be used more safely and reliably.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a door opening holding system applicable to an elevator comprises a first locking device, wherein the first locking device comprises a touch plate, a thrust lock component, a transmission rope and a stop block;
the touch plate is arranged on the door plate and can synchronously slide along with the door plate, and the touch plate can slide to be in contact with the thrust lock assembly so as to change the current operation state of the thrust lock assembly;
the thrust lock assembly at least comprises a first operating state and a second operating state which can be alternated, a movable plate is arranged on the thrust lock assembly, and a relative position distance exists between the movable plate in the first operating state and the movable plate in the second operating state;
one end of the transmission rope is connected with the movable plate, the other end of the transmission rope is connected to the stop block, the stop block can be arranged on the door plate in a swinging mode, the stop block is provided with a blocking plate, and when the door plate is closed, the blocking plate can move to the position in front of the movement track of the door pulley of the door plate.
Preferably, the touch panel is provided with a pressing portion, and the touch panel is provided on the door panel so as to be slidable left and right with respect to the door panel.
Preferably, the touch panel is arranged on the door panel in a manner of sliding up and down relative to the door panel;
the pressing portion is arranged at the bottom end of the touch panel, the top end of the touch panel is provided with a touch panel roller, the door plate is provided with an inclined slide way corresponding to the touch panel roller, and the lower end of the inclined slide way is close to the touch panel roller.
Preferably, the thrust lock assembly comprises a lock body which is arranged in a cylindrical structure, and a touch part, a rotary drum and a push rod which are sequentially arranged in the lock body;
a tooth structure is arranged at one end, facing the rotary drum, of the touch part, a helical rack is arranged on the rotary drum at intervals corresponding to the tooth structure, a plurality of convex walls are arranged in an inner cavity of the lock body at intervals corresponding to the helical rack, a helical tooth structure matched with the helical rack is arranged at one end, close to the helical rack, of each convex wall, and the helical rack can pass through between every two adjacent convex walls;
one end of the push rod extends out of the lock body, a first spring is arranged in the lock body and between the lock bodies, and the movable plate is connected and arranged on the push rod and located outside the lock body.
Preferably, a fixed plate is arranged on the door panel upper ridge corresponding to the movable plate, a plurality of guide posts are arranged on the movable plate towards the fixed plate, and a plurality of through holes for the guide posts to pass through are formed in the fixed plate;
a plurality of second springs are arranged between the movable plate and the fixed plate.
Preferably, the rope winding device further comprises a plurality of guide wheels, and the transmission rope is wound on the guide wheels.
Preferably, the device further comprises a second locking device, wherein the second locking device comprises a first locking wheel, a locking strip and a driving device for driving the locking strip to do linear motion;
the first locking wheel is arranged on a tensioning wheel of the door panel upper ridge and rotates synchronously with the tensioning wheel, and the locking strip can move to be connected with the first locking wheel in an inserting mode.
Preferably, the driving device is a linear motor, and the driving device is electrically connected with the elevator door control system.
Preferably, the locking device further comprises a second locking wheel, and the first locking wheel is in meshed connection with the second locking wheel; the locking bar is movable to be inserted into teeth provided in the second locking wheel.
Preferably, the diameter of the first locking wheel is larger than the diameter of the second locking wheel.
Compared with the prior art, the invention has the beneficial effects that:
the first locking device is arranged in the scheme and comprises a touch panel, a thrust lock assembly, a transmission rope and a stop block, wherein the touch panel can perform sliding motion along with the opening of the door panel; at the moment, the blocking plate arranged on the stop block can swing to the front of the door plate upper door pulley, so that the self-closing movement of the door plate is blocked. In this way, an operator can manually control the touch plate, and the operation is simple and convenient; and the door pulley, namely the door plate slides in a limited and restricted mode, so that the door plate can be effectively blocked in the self-closing motion, the landing door and the car door can not be influenced by the self-closing force, and the safety and reliability are realized when emergency and conventional maintenance are met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of the door panel in a closed state.
FIG. 2 is a schematic structural view of the door panel of the present invention in an open state.
Fig. 3 is a schematic view of the internal structure of the thrust lock assembly of the present invention.
Fig. 4 is a schematic view of the thrust lock assembly with the lock body removed.
Fig. 5 is a schematic structural diagram of the lock body of the present invention.
Fig. 6 is a schematic view of an operation structure of the second locking device of the present invention.
Wherein:
1-first locking means, 11-touch pad, 111-press portion, 112-touch pad roller, 12-thrust lock component, 121-movable plate, 1211-guide post, 1212-second spring, 122-lock body, 1221-convex wall, 123-touch portion, 1231-tooth structure, 124-rotary drum, 1241-helical rack, 125-push rod, 1251-first spring, 13-driving rope, 14-stopper, 141-barrier plate;
2-second locking means, 21-first locking wheel, 22-second locking wheel, 23-locking bar, 24-drive means;
3-door panel, 31-door pulley;
4-door plank upper ridge, 41-inclined slideway, 42-guide wheel, 43-door pulley guide rail, 44-fixing plate and 45-tension wheel.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
As shown in fig. 1-6, the present embodiment provides an open door holding system applicable to an elevator, which mainly comprises a first locking device 1 and a second locking device 2, wherein the first locking device 1 is arranged, and one purpose is to realize manual control in the open door holding state of a door panel 3; the second locking device 2 can realize automatic control of the door panel 3 in the open and hold state on the basis. Through setting up two kinds of control methods to realize the effective maintenance under the 3 state of opening the door of door plant, and operate more simply, convenience, safety.
Specifically, the first locking device 1 includes a touch pad 11, a push lock assembly 12, a transmission rope 13 and a stopper 14, wherein the touch pad 11 is movable to touch the push lock assembly 12, so that the push lock assembly 12 drives the transmission rope 13 to operate, thereby changing the current state of the stopper 14.
The touch panel 11 is arranged in a long strip shape and comprises a bottom end capable of extending out of the door panel upper sill 4 and a top end arranged in the door panel upper sill 4. In this embodiment, a pressing portion 111 is disposed at the bottom end of the touch pad 11, so that an operator can perform a pressing operation conveniently; a transverse plate is arranged at the top end of the touch plate 11, a touch plate roller 112 is arranged at the tail end of the transverse plate, an inclined slide way 41 is arranged on the door panel upper sill 4 corresponding to the touch plate roller 112, and the lower inclined end of the inclined slide way 41 is arranged close to the touch plate roller 112.
Preferably, the touch panel 11 is slidably disposed on the door panel 3 up and down, left and right relative to the door panel 3. If a long hole (not shown in the figures) is formed in the touch panel 11, the long hole may be formed in the form of an inclined strip-shaped hole, a rectangular hole, or the like, and the width of the long hole corresponds to the pressing width of the pressing portion 111, so that the pressing portion 111 has sufficient movement space when driving the touch panel 11; the opening height of the long hole corresponds to the upper and lower sliding ranges of the touch plate 11, so that when the touch plate roller 112 is in relative contact with the inclined slideway 41, the whole touch plate 11 can be lifted upwards, and the bottom end of the touch plate 11 can be retracted when the door panel 3 is closed.
In addition, the touch panel 11 is disposed on the door panel 3 and can slide synchronously with the door panel 3, such as synchronously moving transversely with the opening and closing of the door panel 3. In the process, the touch plate 11 can be controlled to slide to be in contact with the thrust lock assembly 12 so as to change the current operation state of the thrust lock assembly 12; in this embodiment, the thrust lock assembly 12 at least includes a first operating state and a second operating state that can be alternated, the thrust lock assembly 12 is provided with a movable plate 121, a relative position distance exists between the movable plate 121 in the first operating state and the movable plate 121 in the second operating state, and the state of the stopper 14 is adjusted through the position distance.
The door panel upper sill 4 is further provided with a plurality of guide wheels 42, the transmission rope 13 is wound on the guide wheels 42, and the movement direction of the transmission rope 13 can be set through the guide wheels 42. One end of the transmission rope 13 is connected to the movable plate 121, and the other end of the transmission rope 13 is connected to the stopper 14, so that the position change of the movable plate 121 can be linked with the state of the stopper 14. In this embodiment, the stopper 14 is a swingable stopper that is disposed on the door sill 4, and if the stopper 14 is hinged to an end of the door pulley guide rail 43, one end of the stopper 14 that is close to the touch panel 11 is provided with a plurality of blocking plates 141, and when the door panel 3 is closed, the blocking plates 141 can move to be located in front of the movement track of the door pulley 31 of the door panel 3 under the action of the touch panel 11, so as to perform sliding limitation on the door panel 3, and ensure the open state of the elevator.
In a preferred embodiment, the thrust lock assembly 12 further includes a lock body 122 disposed in a cylindrical structure, and a touch portion 123, a rotary drum 124 and a push rod 125 sequentially disposed in the lock body 122; the lock body 122 is provided at both ends thereof with an inward flange structure or a cover structure to prevent the touch part 123, the rotary drum 124 and the push rod 125 from completely sliding out.
More specifically, one end of the touch part 123 facing the rotary drum 124 is provided with a tooth structure 1231, and the other end of the touch part 123 is provided to extend out of the lock body 122 so as to be engaged and contacted with the touch pad 11. A plurality of helical racks 1241 are arranged on the rotary drum 124 at intervals corresponding to the tooth structure 1231, and the arrangement manner of the helical racks 1241 is consistent, so that the rotary drum 124 can have a consistent rotation direction. A plurality of convex walls 1221 are arranged in the inner cavity of the lock body 122 at intervals corresponding to the helical rack 1241, one end of the convex wall 1221 close to the helical rack 1241 is provided with a helical tooth structure matched with the helical rack 1241, and when the helical rack 1241 is arranged on the helical tooth structure in a propping manner, the thrust lock assembly 12 is in a first operating state; in addition, the helical rack 1241 can pass between two adjacent convex walls 1221, and when the helical rack 1241 is inserted into the space formed between the convex walls 1221, the thrust lock assembly 12 is in the second operating state. As a schematic reference example, the specific arrangement and operation mechanism of the cooperation among the touch portion 123, the rotary roller 124 and the push rod 125 can refer to a push-out mechanism of a push-type ballpoint pen in the prior art.
One end of the push rod 125 is in contact with the rotary drum 124, the other end of the push rod 125 is extended out of the lock body 122, and a first spring 1251 is arranged between the extended end of the push rod 125 in the lock body 122 and the lock body 122 to provide a rotation assisting force for the rotary drum 124; the movable plate 121 is connected to an end portion of the push rod 125 outside the lock body 122. As a preferable scheme, a fixed plate 44 is disposed on the door sill 4 corresponding to the movable plate 121, a plurality of guide posts 1211 are disposed on the movable plate 121 toward the fixed plate 44, a plurality of through holes for the guide posts 1211 to pass through are disposed on the fixed plate 44, and a limiting member is disposed at one end of the guide posts 1211 that passes through the fixed plate 44 to prevent the guide posts 1211 from completely falling off the fixed plate 44 when resetting. As another application example, the lateral movement distance of the movable plate 121 and the guide column 1211 can also be controlled by controlling the lateral movement amplitude of the rotating roller 124, which is not described herein again.
In addition, a plurality of second springs 1212 are further disposed between the movable plate 121 and the fixed plate 44; in this embodiment, the second springs 1212 are disposed in one-to-one correspondence with the guide posts 1211 and are serially connected to the guide posts 1211 to provide a sufficient resilient force.
The second locking device 2 comprises a first locking wheel 21, a second locking wheel 22, a locking bar 23 and a driving device 24 for driving the locking bar 23 to do linear motion; in this embodiment, the driving device 24 is a linear motor, and the driving device 24 is electrically connected to the elevator door control system, when the elevator standby power supply is started, a loop triggering the driving device 24 is closed, and at this time, the driving device 24 drives the locking bar 23 to make a linear motion.
Specifically, the first locking wheel 21 is disposed on a tensioning wheel 45 of a tensioning device of the door sill 4, and rotates synchronously with the tensioning wheel 45, and the locking bar 23 is selectively disposed to be movable into plug-in connection with the first locking wheel 21 so as to block the rotational movement of the first locking wheel 21.
As a preferable scheme, in the present embodiment, the first locking wheel 21 and the second locking wheel 22 are both provided in the form of a gear, and the first locking wheel 21 and the second locking wheel 22 are in meshed transmission connection with each other; the locking bar 23 is now arranged to be movable into engagement with the teeth of the second locking wheel 22. In addition, the diameter of the first locking wheel 21 is set larger than the diameter of the second locking wheel 22.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A door opening holding system applicable to an elevator is characterized by comprising a first locking device, wherein the first locking device comprises a touch plate, a thrust lock component, a transmission rope and a stop block;
the touch plate is arranged on the door plate and can synchronously slide along with the door plate, and the touch plate can slide to be in contact with the thrust lock assembly so as to change the current operation state of the thrust lock assembly;
the thrust lock assembly at least comprises a first operating state and a second operating state which can be alternated, a movable plate is arranged on the thrust lock assembly, and a relative position distance exists between the movable plate in the first operating state and the movable plate in the second operating state;
one end of the transmission rope is connected with the movable plate, the other end of the transmission rope is connected to the stop block, the stop block can be arranged on the door plate in a swinging mode, the stop block is provided with a blocking plate, and when the door plate is closed, the blocking plate can move to the position in front of the movement track of the door pulley of the door plate.
2. The open door holding system applicable to an elevator according to claim 1, wherein the touch panel is provided with a pressing portion, and the touch panel is slidably provided on the door panel in a left-right direction with respect to the door panel.
3. The open door holding system applicable to an elevator according to claim 2, wherein the touch panel is provided on the door panel to be slidable up and down with respect to the door panel;
the pressing portion is arranged at the bottom end of the touch panel, the top end of the touch panel is provided with a touch panel roller, the door plate is provided with an inclined slide way corresponding to the touch panel roller, and the lower end of the inclined slide way is close to the touch panel roller.
4. The open door holding system applicable to the elevator as claimed in any one of claims 1 to 3, wherein the push lock assembly comprises a lock body having a cylindrical structure, a touch portion, a rotary drum and a push rod sequentially disposed in the lock body;
a tooth structure is arranged at one end, facing the rotary drum, of the touch part, a helical rack is arranged on the rotary drum at intervals corresponding to the tooth structure, a plurality of convex walls are arranged in an inner cavity of the lock body at intervals corresponding to the helical rack, a helical tooth structure matched with the helical rack is arranged at one end, close to the helical rack, of each convex wall, and the helical rack can pass through between every two adjacent convex walls;
one end of the push rod extends out of the lock body, a first spring is arranged in the lock body and between the lock bodies, and the movable plate is connected and arranged on the push rod and located outside the lock body.
5. The door opening holding system applicable to the elevator as claimed in claim 4, wherein a fixed plate is disposed on the doorsill corresponding to the movable plate, a plurality of guide posts are disposed on the movable plate toward the fixed plate, and a plurality of through holes for the guide posts to pass through are disposed on the fixed plate;
a plurality of second springs are arranged between the movable plate and the fixed plate.
6. The open door retaining system applicable to elevators according to claim 5, further comprising guide pulleys around which the driving rope is wound.
7. The open-door holding system applicable to the elevator as claimed in claim 1 or 6, further comprising a second locking means including a first locking wheel, a locking bar and a driving means for driving the locking bar to move linearly;
the first locking wheel is arranged on a tensioning wheel of the door panel upper ridge and rotates synchronously with the tensioning wheel, and the locking strip can move to be connected with the first locking wheel in an inserting mode.
8. The system of claim 7, wherein the driving device is a linear motor, and the driving device is electrically connected to the elevator door control system.
9. The open-door holding system applicable to the elevator as claimed in claim 7, further comprising a second locking wheel, wherein the first locking wheel is engaged with the second locking wheel; the locking bar is movable to be inserted into teeth provided in the second locking wheel.
10. The open door retention system applicable to elevators according to claim 9, wherein the first locking wheel has a diameter greater than that of the second locking wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009723.4A CN113682929B (en) | 2021-08-31 | 2021-08-31 | Door opening maintaining system suitable for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009723.4A CN113682929B (en) | 2021-08-31 | 2021-08-31 | Door opening maintaining system suitable for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113682929A true CN113682929A (en) | 2021-11-23 |
| CN113682929B CN113682929B (en) | 2023-07-28 |
Family
ID=78584291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111009723.4A Active CN113682929B (en) | 2021-08-31 | 2021-08-31 | Door opening maintaining system suitable for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113682929B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368665A (en) * | 2021-12-23 | 2022-04-19 | 日立电梯（中国）有限公司 | Elevator, elevator auxiliary door opening device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08169673A (en) * | 1994-12-20 | 1996-07-02 | Hitachi Building Syst Eng & Service Co Ltd | Control device of elevator |
| CN2663381Y (en) * | 2003-12-12 | 2004-12-15 | 广州日立电梯有限公司 | Door opening force keeping device of elevator door machine |
| JP2007015778A (en) * | 2005-07-05 | 2007-01-25 | Toshiba Elevator Co Ltd | Hall door closing device of elevator |
| CN101128386A (en) * | 2005-03-23 | 2008-02-20 | 东芝电梯株式会社 | Door device of elevator |
| JP2009256045A (en) * | 2008-04-16 | 2009-11-05 | Hitachi Ltd | Door device of elevator |
| CN102116125A (en) * | 2011-01-18 | 2011-07-06 | 深圳职业技术学院 | Folding normally-open fireproof door |
| KR20140059491A (en) * | 2012-11-08 | 2014-05-16 | (주)에이스앤아이 | Door locking device |
| CN204198194U (en) * | 2014-11-08 | 2015-03-11 | 台州富士电梯制造有限公司 | Emergency staircase |
| CN205025287U (en) * | 2015-09-29 | 2016-02-10 | 镇江香江云动力科技有限公司 | Data center micromodule closed passage door |
-
2021
- 2021-08-31 CN CN202111009723.4A patent/CN113682929B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08169673A (en) * | 1994-12-20 | 1996-07-02 | Hitachi Building Syst Eng & Service Co Ltd | Control device of elevator |
| CN2663381Y (en) * | 2003-12-12 | 2004-12-15 | 广州日立电梯有限公司 | Door opening force keeping device of elevator door machine |
| CN101128386A (en) * | 2005-03-23 | 2008-02-20 | 东芝电梯株式会社 | Door device of elevator |
| JP2007015778A (en) * | 2005-07-05 | 2007-01-25 | Toshiba Elevator Co Ltd | Hall door closing device of elevator |
| JP2009256045A (en) * | 2008-04-16 | 2009-11-05 | Hitachi Ltd | Door device of elevator |
| CN102116125A (en) * | 2011-01-18 | 2011-07-06 | 深圳职业技术学院 | Folding normally-open fireproof door |
| KR20140059491A (en) * | 2012-11-08 | 2014-05-16 | (주)에이스앤아이 | Door locking device |
| CN204198194U (en) * | 2014-11-08 | 2015-03-11 | 台州富士电梯制造有限公司 | Emergency staircase |
| CN205025287U (en) * | 2015-09-29 | 2016-02-10 | 镇江香江云动力科技有限公司 | Data center micromodule closed passage door |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368665A (en) * | 2021-12-23 | 2022-04-19 | 日立电梯（中国）有限公司 | Elevator, elevator auxiliary door opening device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113682929B (en) | 2023-07-28 |
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