CN105836586B - Adjustable length acousto-optic type prevents elevator door self-closing device - Google Patents
Adjustable length acousto-optic type prevents elevator door self-closing device Download PDFInfo
- Publication number
- CN105836586B CN105836586B CN201610432673.3A CN201610432673A CN105836586B CN 105836586 B CN105836586 B CN 105836586B CN 201610432673 A CN201610432673 A CN 201610432673A CN 105836586 B CN105836586 B CN 105836586B
- Authority
- CN
- China
- Prior art keywords
- cavity
- moving contact
- static contact
- piston
- end cap
- 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
Links
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
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
- B66B13/185—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors electrical
-
- 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
-
- 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
- B66B5/005—Safety of maintenance personnel
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
Adjustable length acousto-optic type prevents elevator door self-closing device, including housing, housing left part is provided with the first cavity and the second cavity, pressing conductive mechanism is provided with first cavity and the second cavity, housing right part is provided with the 3rd cavity, piston type telescoping mechanism is slidably connected in the 3rd cavity, housing left and right ends are fixed with left end cap and right end cap respectively, lower housing portion front-rear center position is fixed with lower bottom base, and housing upper is fixed with electrical appliance kit, and interior of electrical box is disposed with electric wiring；The length that the present invention can stretch out according to piston controls the aperture of hoistway door, and realizes using electric wiring the audible alarm during elevator reparing and light alarm, convenient and practical and safe and reliable.
Description
Technical field
The invention belongs to elevator technology field, more particularly to a kind of prevention elevator door self-closing device.
Background technology
There should be automatic closing function during national Specification elevator door normal operation, but elevator is being maintained and examined
Need hoistway door to remain in detection process and be easy to maintenance activity, that is, prevent hoistway door from closing automatically.
When overhauling elevator, our two screwdriver jams of generally use are between hall door, for stopping that hall door is closed automatically,
When in this way, two screwdrivers often move, not easy to operate, cause hall door easily self-closing；Sometimes also take certainly
The method that dynamic shutoff device is arranged to failure state, although this state is reliable, the spacing that hall door is opened is difficult to determine, people
Member easily crashes into hoistway from the uncertain gap of this size, and security incident occurs, in addition, after this failure state is set, if
Related personnel neglects, and does not recover self closing device in time, and elevator can open hall door in normal operation, trigger immeasurable
Hurt sb.'s feelings consequence.
The content of the invention
According in place of the deficiencies in the prior art, the present invention proposes a kind of adjustable in length and convenient and reliable acousto-optic type hinders
Only elevator door self-closing device.
In order to solve the above technical problems, the present invention uses following technical scheme：Adjustable length acousto-optic type prevents elevator door certainly
Device, including horizontally disposed housing are closed, housing left part is sequentially provided with the first cavity and the second cavity from left to right, and first is empty
The diameter of chamber is more than the diameter of the second cavity, and pressing conductive mechanism is provided with the first cavity and the second cavity, and housing right part is provided with
3rd cavity, slidably connects piston type telescoping mechanism in the 3rd cavity, housing left and right ends be fixed with respectively left end cap and
Right end cap, left end cap close the left end of the first cavity, and right end cap closes the right-hand member of the 3rd cavity, lower housing portion front-rear center position
Lower bottom base is fixed with, housing upper is fixed with electrical appliance kit, and interior of electrical box is disposed with electric wiring；
Pressing conductive mechanism includes static contact component, moving contact component, compression spring and spring backstop, and spring backstop separates
First cavity and the second cavity, static contact component are fixed and are located in the second cavity, and static contact component is in the lateral direction
Length is less than the depth of the second cavity in the lateral direction, and moving contact component slip is located in the first cavity and moving contact component is left
End is stretched out left end cap and is slidably matched with left end cap, and the right part of moving contact component is arranged with the compression spring, the first cavity
Right side be fixed with the spring backstop, compression spring and spring backstop top pressure coordinate, and moving contact component right part passes through
Spring backstop is simultaneously slidingly sealed cooperation with spring backstop, and moving contact component has a pressing position and initial position, under initial position
There is gap, pressing position lower moving contact component right part and static contact group between moving contact component right part and static contact component
Top pressure coordinates between part；
Piston type telescoping mechanism includes piston, piston backstop, adjustable bolt and sunk screw, and piston backstop is slided and is located at shell
In 3rd cavity of body, piston backstop axis direction is provided with sunk screw, and described piston passes through sunk screw and piston backstop
Be fixedly connected, the right part of piston passes right end cap and is slidably matched with right end cap, the right part of housing be radially provided with
The screwed hole of 3rd cavity insertion, screwed hole internal thread are connected with adjustable bolt, and adjustable bolt is held out against on piston.
Static contact component includes left felt pad, right felt pad, static contact, static contact catch and trip bolt, right felt pad
The second cavity right side is located at, right felt pad left end is provided with static contact catch, and static contact is fixedly connected on static contact catch left end
Center, left felt pad are set on static contact, stretch out left felt pad on the left of static contact, and trip bolt is along left felt pad, the right side
Felt pad and static contact catch circumferencial direction are uniformly provided with four, and static contact component is fixedly connected with the casing by trip bolt.
Moving contact component includes press head, moving contact stops, moving contact post and dormant bolt, moving contact stop are slidably connected
In the first cavity and positioned at the right side of left end cap, original state lower moving contact stops to be coordinated with left end cap top pressure, pressed state
Lower moving contact stops has gap between left end cap；Moving contact stops that right side is provided with moving contact post, and moving contact stops that left side is set
Have and left end cap is stretched out on the left of press head and press head and is slidably matched with left end cap, press head left end center is provided with countersunk head spiral shell
Bolt, press head, moving contact stop to be fixedly connected with moving contact post by dormant bolt.
Radial direction insertion of the external part afterbody of piston along piston, which is provided with, is used to stretching the slotted hole of piston, in the top of piston
Between position be provided be used to hold out against the groove of adjustable bolt in the axial direction.
Electrical appliance kit top is provided with electrical equipment lid.
Left end cap, right end cap, lower bottom base and electrical appliance kit are fixedly connected with the casing by screw.
Electric wiring includes power supply, switch, buzzer, light emitting diode, controller and wire, described power supply, switch,
Buzzer, light emitting diode and controller are connected by wired in series, are respectively equipped with the first cavity and the second cavity of housing
First threading hole and the second threading hole, wire are connected through the first threading hole with spring backstop, and moving contact post is stopped by spring
Gear is connected with wire, and wire is connected through the second threading hole with static contact catch, and static contact is by static contact catch with leading
Line is connected, and spring backstop, static contact catch, moving contact post and static contact form the switch and control the logical of electric wiring
It is disconnected.
Using above-mentioned technical proposal, the present invention has the advantages that：Made using the self closing device of hoistway door
Moving contact post and static contact contact are reasonable in design and easy to use to turn on electric wiring.
Electric wiring is connected with controller, and interrupted audible ringing signal and the visual alarm of flicker can be achieved, and improves
Warning function.
Using piston extension elongation adjust hoistway door aperture with meet the different opening of related personnel on the door will
Ask, and the non-stretched length of inventive piston is 120mm, overall length is no more than 150mm after stretching, even if maintenance test personnel do not exist
Scene, also irrelevant personnel will not be caused to crash into hoistway, securely and reliably.
Lower bottom base can move in the guide groove of hoistway door along guide groove, ensure that hoistway door when closed
The resistance of left and right door leaf is equal.
The dismountable lid of electrical appliance kit band, convenient maintenance and replacing battery to circuit, ensure work reliably and with long-term.
In summary：The length that the present invention can stretch out according to piston controls the aperture of elevator hall door, and using electrically
Circuit realizes the audible alarm and light alarm during elevator reparing, convenient and practical and safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the electrical schematic diagram of the present invention.
Embodiment
Embodiment：Adjustable length acousto-optic type as depicted in figs. 1 and 2 prevents elevator door self-closing device, including horizontally disposed
Housing 1, the left part of housing 1 is sequentially provided with the first cavity 2 and the second cavity 3 from left to right, and the diameter of the first cavity 2 is more than the
Pressing conductive mechanism is provided with the diameter of two cavitys 3, the first cavity 2 and the second cavity 3, the right part of housing 1 is provided with the 3rd cavity 4,
Piston type telescoping mechanism is slidably connected in 3rd cavity 4, the left and right ends of housing 1 are fixed with left end cap 5 and right end cap respectively
6, left end cap 5 closes the left end of the first cavity 2, and right end cap 6 closes the right-hand member of the 3rd cavity 4；The bottom front-rear center position of housing 1
Lower bottom base 7 is fixed with, the top of housing 1 position corresponding with lower bottom base 7 is fixed with electrical appliance kit 8, and the inside of electrical appliance kit 8 is arranged
There is electric wiring；
Pressing conductive mechanism includes static contact component, moving contact component, compression spring 9 and spring backstop 10, spring backstop
10 separate the cavity 3 of the first cavity 2 and second, and static contact component is fixed and is located in the second cavity 3, and static contact component is in left and right
Length on direction is less than the depth of the second cavity 3 in the lateral direction, and moving contact component slip is located in the first cavity 2 and dynamic
Contact assembly left end stretches out left end cap 5 and is slidably matched with left end cap 5, and the right part of moving contact component is arranged with the compression bullet
Spring 9, the right side of the first cavity 2 are fixed with the spring backstop 10, and compression spring 9 and the top pressure of spring backstop 10 coordinate,
Moving contact component right part through the spring backstop 10 and is slidingly sealed cooperation, moving contact group with spring backstop 10
Part has pressing position and initial position, has gap between initial position lower moving contact component right part and static contact component,
Top pressure coordinates between pressing position lower moving contact component right part and static contact component；
Piston type telescoping mechanism includes piston 11, piston backstop 12, adjustable bolt 13 and sunk screw 14, piston backstop 12
Slip is located in the 3rd cavity 4 of housing 1, and the axis direction of piston backstop 12 is provided with sunk screw 14, and described piston 11 passes through
Sunk screw 14 is fixedly connected with piston backstop 12, and the right part of piston 11 passes right end cap 6 and is slidably matched with right end cap 6,
The right part of housing 1 is radially provided with the screwed hole with the insertion of the 3rd cavity 4, and screwed hole internal thread is connected with adjustable bolt
13, adjustable bolt 13 is held out against on piston 11.
Static contact component includes left felt pad 15, right felt pad 16, static contact 17, static contact catch 18 and trip bolt
19, right felt pad 16 is located at the right side of the second cavity 3, and the right left end of felt pad 16 is provided with static contact catch 18, and static contact 17 is fixed
The left end center of static contact catch 18 is connected to, left felt pad 15 is set on static contact 17, and the left side of static contact 17 is stretched out left
Felt pad 15, trip bolt 19 are uniformly provided with four along left felt pad 15, right felt pad 16 and the circumferencial direction of static contact catch 18,
Static contact component is fixedly connected by trip bolt 19 with housing 1.
Moving contact component includes press head 20, moving contact stops 21, moving contact post 22 and dormant bolt 23, and moving contact stops
21 are slidably connected in the first cavity 2 and positioned at the right side of left end cap 5, and original state lower moving contact stops that 21 push up with left end cap 5
Press-fit, pressed state lower moving contact, which stops between 21 and left end cap 5, has gap；Moving contact stops that 21 right sides are provided with moving contact
Post 22, moving contact stop that 21 left sides are provided with press head 20 and the left side of press head 20 is stretched out left end cap 5 and slided with left end cap 5 and matched somebody with somebody
Close, the left end center of press head 20 is provided with dormant bolt 23, and it is heavy that press head 20, moving contact stop 21 and moving contact post 22 pass through
Hook bolt 23 is fixedly connected.
Radial direction insertion of the external part afterbody of piston 11 along piston 11 is provided with the slotted hole 24 for being used for stretching piston 11, piston
11 crown center position is provided with the groove 25 for being used for holding out against adjustable bolt 13 in the axial direction.
The top of electrical appliance kit 8 is provided with electrical equipment lid 26.
Left end cap 5, right end cap 6, lower bottom base 7 and electrical appliance kit 8 are fixedly connected by screw with housing 1.
Electric wiring includes power supply 27, switch 28, buzzer 29, light emitting diode 30, controller 31 and wire, described
Power supply 27, switch 28, buzzer 29, light emitting diode 30 are connected with controller 31 by wired in series, the first cavity of housing 1
2 and second are respectively equipped with the first threading hole 32 and the second threading hole 33 on cavity 3, and wire stops through the first threading hole 32 with spring
Gear 10 is connected, and moving contact post 22 is connected by spring backstop 10 with wire, and wire passes through the second threading hole 33 and static contact
Catch 18 is connected, and static contact 17 is connected by static contact catch 18 with wire, spring backstop 10, static contact catch 18, moves
Contact post 22 and static contact 17 form the switch 28 and control the break-make of electric wiring, and the model of controller 31 is with LED's
Music IC chip, power supply 27 are 3V button cells.
The work use principle of the present invention is as follows：Elevator uses special triangular key when maintaining and examining detection
Hoistway door is opened, the lower bottom base 7 of the present invention is embedded in the guide groove of hall door, unclamps adjustable bolt 13, regulating piston 11
Extension elongation makes it hold out against piston 11 to locking adjustable bolt 13 after correct position, and hoistway door closes by self closing device
And promote moving contact component to be slided in the first cavity 2 of housing 1 to static contact 17, when moving contact post 22 reaches the limit of position top
During tight static contact 17, hoistway door is prevented from closing and opens certain gap, and the electric wiring being arranged in electrical appliance kit 8 leads to
Cross the contact of moving contact post 22 and static contact 17 and turn on, buzzer 29 and light emitting diode 30 send audible alarm and light respectively
Alarm signal, controller 31 can control the length of whole loop conduction time, realize the light alarm of interrupted sound and flicker,
Prompting irrelevant personnel notices that elevator is in service mode, and now the gap of the permeable hoistway door of maintenance personal starts maintenance electricity
Ladder, after overhauling elevator, the present invention of the jam between hoistway door is taken down, moving contact component relies on the bullet of compression spring 9
Property reset, electric wiring disconnect, buzzer 29 and the stop alarm of light emitting diode 30, hoistway door close by self closing device
Close.The length that the present invention can stretch out according to piston 11 controls the aperture of hoistway door, and realizes that elevator is tieed up using electric wiring
Audible alarm and light alarm during repairing, it is convenient and practical and safe and reliable.
Above example is only to illustrative and not limiting technical scheme, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that：Without departing from the spirit and scope of the present invention
Any modification or partial replacement, it all should cover among scope of the presently claimed invention.
Claims (7)
1. adjustable length acousto-optic type prevents elevator door self-closing device, it is characterised in that：Including horizontally disposed housing, housing left end
Portion is sequentially provided with the first cavity and the second cavity from left to right, and the diameter of the first cavity is more than the diameter of the second cavity, and first is empty
Pressing conductive mechanism is provided with chamber and the second cavity, housing right part is provided with the 3rd cavity, piston is slidably connected in the 3rd cavity
Formula telescoping mechanism, housing left and right ends are fixed with left end cap and right end cap respectively, and left end cap closes the left end of the first cavity, right
End cap closes the right-hand member of the 3rd cavity, and lower housing portion front-rear center position is fixed with lower bottom base, and housing upper is fixed with electricity
Device box, interior of electrical box are disposed with electric wiring；
Pressing conductive mechanism includes static contact component, moving contact component, compression spring and spring backstop, described in the separation of spring backstop
First cavity and the second cavity, static contact component are fixed and are located in the second cavity, the length of static contact component in the lateral direction
Less than the depth of the second cavity in the lateral direction, moving contact component slip is located in the first cavity and moving contact component left end is stretched
Go out left end cap and be slidably matched with left end cap, the right part of moving contact component is arranged with the compression spring, the right side of the first cavity
End face is fixed with the spring backstop, and compression spring and spring backstop top pressure coordinate, and moving contact component right part passes through spring
Backstop is simultaneously slidingly sealed cooperation with spring backstop, and moving contact component has pressing position and initial position, moves and touch under initial position
There is gap between head assembly right part and static contact component, pressing position lower moving contact component right part and static contact component it
Between top pressure coordinate；
Piston type telescoping mechanism includes piston, piston backstop, adjustable bolt and sunk screw, and piston backstop is slided and is located at housing
In 3rd cavity, piston backstop axis direction is provided with sunk screw, and described piston is fixed by sunk screw and piston backstop
Connection, the right part of piston pass right end cap and are slidably matched with right end cap, and the right part of housing is radially provided with and the 3rd
The screwed hole of cavity insertion, screwed hole internal thread are connected with adjustable bolt, and adjustable bolt is held out against on piston.
2. adjustable length acousto-optic type according to claim 1 prevents elevator door self-closing device, it is characterised in that：Static contact group
Part includes left felt pad, right felt pad, static contact, static contact catch and trip bolt, and right felt pad is located at the second cavity right-hand member
Face, right felt pad left end are provided with static contact catch, and static contact is fixedly connected on static contact catch left end center, left felt pad
It is set on static contact, stretches out left felt pad on the left of static contact, trip bolt is along left felt pad, right felt pad and static contact catch
Circumferencial direction is uniformly provided with four, and static contact component is fixedly connected with the casing by trip bolt.
3. adjustable length acousto-optic type according to claim 1 prevents elevator door self-closing device, it is characterised in that：Moving contact group
Part includes press head, moving contact stop, moving contact post and dormant bolt, and moving contact stop is slidably connected in the first cavity and position
In the right side of left end cap, the stop of original state lower moving contact coordinates with left end cap top pressure, and pressed state lower moving contact stops and a left side
There is gap between end cap；Moving contact stops that right side is provided with moving contact post, and moving contact stops that left side is provided with press head and press head
Left side is stretched out left end cap and is slidably matched with left end cap, and press head left end center is provided with dormant bolt, press head, moving contact
Stop is fixedly connected with moving contact post by dormant bolt.
4. adjustable length acousto-optic type according to claim 1 prevents elevator door self-closing device, it is characterised in that：Piston is stretched
Go out to hold radial direction insertion of the afterbody along piston to be provided with the slotted hole for being used for stretching piston, the crown center position of piston is in the axial direction
Provided with the groove for holding out against adjustable bolt.
5. adjustable length acousto-optic type according to claim 1 prevents elevator door self-closing device, it is characterised in that：On electrical appliance kit
Portion is provided with electrical equipment lid.
6. the adjustable length acousto-optic type according to claim 1 or 3 prevents elevator door self-closing device, it is characterised in that：Left end
Lid, right end cap, lower bottom base and electrical appliance kit are fixedly connected with the casing by screw.
7. the adjustable length acousto-optic type according to claim 1 or 2 or 3 prevents elevator door self-closing device, it is characterised in that：Electricity
Gas circuit includes power supply, switch, buzzer, light emitting diode, controller and wire, described power supply, switch, buzzer, hair
Optical diode is connected with controller by wired in series, and the first threading hole is respectively equipped with the first cavity and the second cavity of housing
With the second threading hole, wire is connected through the first threading hole with spring backstop, and moving contact post passes through spring backstop and wire phase
Connection, wire are connected through the second threading hole with static contact catch, and static contact is connected by static contact catch with wire, bullet
Spring backstop, static contact catch, moving contact post and static contact form the switch and control the break-make of electric wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610432673.3A CN105836586B (en) | 2016-06-17 | 2016-06-17 | Adjustable length acousto-optic type prevents elevator door self-closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610432673.3A CN105836586B (en) | 2016-06-17 | 2016-06-17 | Adjustable length acousto-optic type prevents elevator door self-closing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105836586A CN105836586A (en) | 2016-08-10 |
| CN105836586B true CN105836586B (en) | 2017-11-10 |
Family
ID=56576188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610432673.3A Expired - Fee Related CN105836586B (en) | 2016-06-17 | 2016-06-17 | Adjustable length acousto-optic type prevents elevator door self-closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105836586B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10800635B2 (en) * | 2017-08-30 | 2020-10-13 | Otis Elevator Company | Elevator door wedge monitoring system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07137965A (en) * | 1993-11-15 | 1995-05-30 | Mitsubishi Denki Bill Techno Service Kk | Door holder for dumb waiter entrance door |
| JPH0891746A (en) * | 1994-09-29 | 1996-04-09 | Mitsubishi Denki Bill Techno Service Kk | Landing door fixing device for elevator |
| JPH0899788A (en) * | 1994-09-30 | 1996-04-16 | Mitsubishi Denki Bill Techno Service Kk | Landing hall door fixing device of elevator |
| JP2006076682A (en) * | 2004-09-08 | 2006-03-23 | Mitsubishi Electric Building Techno Service Co Ltd | Temporary barrier device for elevator landing place |
| JP2013001482A (en) * | 2011-06-14 | 2013-01-07 | Mitsubishi Electric Corp | Door device for elevator, and sill groove blocking device for elevator |
| CN203428679U (en) * | 2013-08-21 | 2014-02-12 | 上海微频莱机电科技有限公司 | Safety device for avoiding lift accidents |
| CN204917510U (en) * | 2015-08-12 | 2015-12-30 | 三菱电机上海机电电梯有限公司 | Lift -cabin door breaks away from to detect to be protected and alarm device |
| CN205687372U (en) * | 2016-06-17 | 2016-11-16 | 河南省特种设备安全检测研究院新乡分院 | Adjustable length acousto-optic type stops elevator door self-closing device |
-
2016
- 2016-06-17 CN CN201610432673.3A patent/CN105836586B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07137965A (en) * | 1993-11-15 | 1995-05-30 | Mitsubishi Denki Bill Techno Service Kk | Door holder for dumb waiter entrance door |
| JPH0891746A (en) * | 1994-09-29 | 1996-04-09 | Mitsubishi Denki Bill Techno Service Kk | Landing door fixing device for elevator |
| JPH0899788A (en) * | 1994-09-30 | 1996-04-16 | Mitsubishi Denki Bill Techno Service Kk | Landing hall door fixing device of elevator |
| JP2006076682A (en) * | 2004-09-08 | 2006-03-23 | Mitsubishi Electric Building Techno Service Co Ltd | Temporary barrier device for elevator landing place |
| JP2013001482A (en) * | 2011-06-14 | 2013-01-07 | Mitsubishi Electric Corp | Door device for elevator, and sill groove blocking device for elevator |
| CN203428679U (en) * | 2013-08-21 | 2014-02-12 | 上海微频莱机电科技有限公司 | Safety device for avoiding lift accidents |
| CN204917510U (en) * | 2015-08-12 | 2015-12-30 | 三菱电机上海机电电梯有限公司 | Lift -cabin door breaks away from to detect to be protected and alarm device |
| CN205687372U (en) * | 2016-06-17 | 2016-11-16 | 河南省特种设备安全检测研究院新乡分院 | Adjustable length acousto-optic type stops elevator door self-closing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105836586A (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202847566U (en) | Stretchable running board controller below emergency door of school bus | |
| CN105836586B (en) | Adjustable length acousto-optic type prevents elevator door self-closing device | |
| CN108969926B (en) | Safety rope hook with electric control safety device | |
| CN205687372U (en) | Adjustable length acousto-optic type stops elevator door self-closing device | |
| CN106135190A (en) | Multi-functional Anti-dismantling mouse blocking plate | |
| CN209226343U (en) | A kind of measuring device of the elevator landing door lock depth of engagement | |
| CN206940144U (en) | The elevator emergency for inductively detecting door lock break-make using detection declutches supply unit | |
| CN202788299U (en) | Oven safety door system | |
| CN206096127U (en) | Little water sensor | |
| CN204569058U (en) | Intelligent elevator well lighting control system | |
| CN107064606A (en) | A kind of high pressure power frequency self-monitoring electroscope | |
| CN206671410U (en) | A kind of high pressure power frequency self-monitoring electroscope | |
| CN108100798A (en) | A kind of adjustable acousto-optic type of length prevents elevator door self-closing device | |
| CN208130261U (en) | Outdoor electric power construction safety guarantee equipment | |
| CN206990742U (en) | The test machine and its earth detector of semiconductor devices | |
| CN205384714U (en) | Cubical switchboard safety precaution device and have cubical switchboard of this safety precaution device | |
| CN204758572U (en) | Detection apparatus for cable | |
| CN209581177U (en) | A kind of charging protection device for electric vehicle | |
| CN205507112U (en) | Electric power facility prevents mistake and hits alarm | |
| CN204858666U (en) | A intelligence protection clip for car is emergent to be started | |
| CN206558902U (en) | High voltage power distributing cabinet livewire work early warning system | |
| CN207967744U (en) | Operation rod for electricity inspection | |
| CN208473470U (en) | A kind of intelligent voice prompt safe self-locking door lock | |
| CN205677409U (en) | A kind of safety door switch of electromagnetic force locking | |
| CN204101424U (en) | A kind of light aging test equipment illumination system automatic safety device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20190617 |