CN220148935U - Simulation action display stand of unexpected movement protection device of elevator car - Google Patents
Simulation action display stand of unexpected movement protection device of elevator car Download PDFInfo
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- CN220148935U CN220148935U CN202321551888.9U CN202321551888U CN220148935U CN 220148935 U CN220148935 U CN 220148935U CN 202321551888 U CN202321551888 U CN 202321551888U CN 220148935 U CN220148935 U CN 220148935U
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- 238000004088 simulation Methods 0.000 title claims abstract description 66
- 230000033001 locomotion Effects 0.000 title claims abstract description 31
- 230000009471 action Effects 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 230000006698 induction Effects 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000001939 inductive effect Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
Abstract
The utility model discloses a simulated action display table of an unexpected movement protection device of an elevator car, and relates to the technical field of elevator protection devices, wherein the device comprises a hoistway simulation frame, an openable elevator door, a wheel set, a transmission mechanism, a rope clamping device and a controller; a door mounting area is arranged on one vertical surface of the hoistway simulation frame, and an elevator door is arranged in the door mounting area; a steel wire rope is wound on the wheel set; the rope clamping device is arranged in the well simulation frame, and the steel wire rope passes through the rope clamping device; the transmission mechanism is in transmission connection with the wheel set; the elevator door is provided with a door lock with induction; a leveling induction switch is also arranged in the hoistway simulation frame and is used for inducing the movement of the steel wire rope; the controller is respectively and electrically connected with the door lock and the flat layer induction switch; the elevator door control device is used for showing the condition that after an elevator door is opened, a leveling induction switch senses that an elevator car is not in a leveling zone, and a controller controls a rope clamping device to clamp a steel wire rope; the dynamic safety action of the rope clamp when the rope clamp makes simulated accidental movement of the elevator during exhibition is realized.
Description
Technical Field
The utility model relates to the technical field of elevator protection devices, in particular to a simulation action display stand of an elevator car accidental movement protection device.
Background
Vertical elevators are transportation apparatuses for vertically transporting pedestrians or goods, and are installed in a prescribed floor building, and have a car installed on a dedicated guide rail to travel up and down, which can be divided into a low-speed elevator, a fast elevator, and a high-speed elevator according to speed.
The safety protection device of the vertical elevator plays a critical role, and the safety protection device of the vertical elevator at present has the functions of protecting the safety operation of the vertical elevator by installing the safety protection device of the vertical elevator at corresponding positions in the vertical elevator, namely a speed limiter, a band-type brake, a rope clamping device, a car safety clamp or a counterweight safety clamp.
Before the vertical elevator runs safely, relevant safety tests are needed to be carried out, so that accidents of the vertical elevator are avoided when the vertical elevator runs, and safety components can perform safety guarantee actions including emergency braking, speed limiting running, position keeping and the like when the vertical elevator runs accidentally.
The display of the safety components is generally divided into a static display mode and a site display mode in an elevator shaft so as to simulate the working state of the safety components in the vertical elevator; the rope clamping device is used as a key protection device for accidental movement of the elevator car, can clamp a steel wire rope of the elevator car under the condition that the elevator stops moving accidentally, and can not simulate the action state of the vertical elevator and the rope clamping device in static display, but can not be displayed on various sites in the construction site of the elevator well.
There is a need for an action display stand that can be conveniently displayed and that can simulate the accidental movement of an elevator car.
In summary, the present inventors have found that at least the following technical problems exist in the prior art:
the technical problem that the rope clamping device of the existing elevator car can not be used for simulating dynamic safety actions when an elevator accidentally moves under the condition of exhibition is solved.
Disclosure of Invention
The utility model aims to provide an elevator car accidental movement protection device simulation action display table, which is used for solving the technical problem that a rope clamping device of the existing elevator car can not perform dynamic safety actions when simulating the elevator accidental movement under the condition of exhibition.
The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a simulated action display table of an unexpected movement protection device of an elevator car, which comprises a hoistway simulation frame, an openable elevator door, a wheel set, a transmission mechanism, a rope clamping device and a controller, wherein the hoistway simulation frame is arranged on the hoistway simulation frame; a door mounting area is arranged on one vertical surface of the hoistway simulation frame, and an elevator door is arranged in the door mounting area; the wheel sets are arranged along the vertical direction of the hoistway simulation frame, and steel wire ropes are wound on the wheel sets; the rope clamping device is arranged in the well simulation frame, and the steel wire rope passes through the rope clamping device; the transmission mechanism is arranged outside the hoistway simulation frame and is in transmission connection with the wheel set, and the transmission mechanism is used for driving the steel wire rope to run on the wheel set and the rope clamping device; the elevator door is provided with a door lock with induction; a leveling zone is arranged in the hoistway simulation frame, and a leveling induction switch is also arranged in the leveling zone and is used for detecting displacement information of the steel wire rope in the leveling zone; the controller is arranged on the hoistway simulation frame, the controller is electrically connected with the rope clamping device, the door lock and the flat layer induction switch in a communication mode respectively, and the controller is used for controlling the rope clamping device according to detection information of the door lock and the flat layer induction switch.
In one embodiment, the hoistway simulation frame is constructed by aluminum profiles; the well simulation frame is a vertical cuboid frame.
In one embodiment, casters are mounted to the bottom of the hoistway simulation frame.
In one embodiment, the door-mounting area is arranged in the middle of the hoistway simulation frame, two door-mounting area cross bars are arranged between two adjacent upright posts on one vertical side of the hoistway simulation frame, the two door-mounting area cross bars are respectively and vertically connected with the two upright posts in a top-to-bottom mode, and an area surrounded by the two door-mounting area cross bars and the two upright posts is a door-mounting area; the elevator door is slidably mounted on the door zone cross bar; the elevator door is opened or closed in a manual manner.
In one embodiment, the wheel set comprises a driving wheel and a driven wheel; the driven wheel is rotatably arranged on the top in the well simulation frame, and the driving wheel is rotatably arranged below the driven wheel; the steel wire rope is arranged on the driving wheel and the driven wheel in a rope transmission mode; the rope clamp is arranged between the driving wheel and the driven wheel in the vertical direction; the rope gripper is arranged above the elevator door in a vertical direction; the driving wheel is in transmission connection with the transmission mechanism.
In one embodiment, the steel wire rope is provided with a plurality of steel wires.
In one embodiment, the transmission mechanism is a hand wheel; a rotating shaft is arranged on the driving wheel, the rotating shaft is rotatably connected in the well simulation frame, and the hand wheel is connected with the rotating shaft; the rotation of the hand wheel is used for driving the steel wire rope on the driving wheel to move up and down.
In one embodiment, the flat layer inductive switch comprises a light shield and a flat layer inductor; the light shielding plate is arranged on the hoistway simulation frame, the leveling inductor is arranged on the steel wire rope, and the induction part of the leveling inductor is correspondingly arranged with the light shielding plate; the flat layer inductor is electrically connected with the controller in a communication manner.
In one embodiment, the steel wire ropes at the two sides of the driving wheel and the driven wheel are pulled out, one side, adjacent to the elevator door, of the steel wire rope is a clamping side, and the other side, far from the elevator door, of the steel wire rope is an induction side; the flat layer inductor is mounted on the induction side of the steel wire rope; the gripper is clamped on the clamping side of the wire rope.
The beneficial effects of the utility model are as follows:
through be equipped with the dress door district on the vertical one side of well simulation frame, install the lift-cabin door in the dress door district, make can carry out the opening and closing operation of lift-cabin door on the well simulation frame, the cooperation install the lock of taking the response on the lift-cabin door, the lock give the controller feedback signal.
Further, through the arrangement of the wheel group, the transmission mechanism and the rope clamping device in the well simulation frame, a steel wire rope is wound on the wheel group, passes through the rope clamping device and can rotate the wheel group through the transmission mechanism, so that the steel wire rope is driven to run on the wheel group and the rope clamping device.
Because the flat layer area is also internally provided with a flat layer inductive switch, the flat layer inductive switch is used for detecting the displacement information of the steel wire rope in the flat layer area; when the elevator door is opened, triggering the door lock to send a signal to the controller; at this time, the transmission mechanism drives the wheel group to promote the wire rope to move, when the wire rope is detected by the leveling inductive switch to move beyond the leveling zone, the leveling inductive switch sends a signal to the controller, and the controller can be triggered to control the rope clamping device to clamp the moving wire rope, so that the situation that the rope clamping device emergently makes safety braking after the elevator car is opened and moves out of the leveling zone is simulated.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the overall front view of the present utility model;
fig. 2 is a schematic rear perspective view of the entire structure of the present utility model.
Wherein, the reference numerals are as follows:
1. a hoistway simulation frame; 11. a door mounting area; 12. a column; 13. a cross bar; 14. a flat layer region;
2. an elevator door;
3. a wheel set; 31. a wire rope; 311. a clamping side; 312. an induction side; 32. a driving wheel; 321. a rotating shaft; 33. driven wheel;
4. a transmission mechanism; 41. a hand wheel;
5. a rope gripper;
6. a flat layer inductive switch; 61. a light shielding plate; 62. a flat layer inductor;
7. casters.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
The embodiment provides an unexpected movement protection device simulation action show stand of elevator car, and the effectual technical problem of dynamic safety action when making the unexpected removal of simulation elevator of having solved the unable condition of exhibition of rope holder 5 of current elevator car.
Hereinafter, embodiments will be described with reference to the drawings. The whole contents of the constitution shown in the following examples are not limited to the solution of the utility model described in the claims.
An embodiment of an elevator car accidental movement protection device simulation action display stand is shown in fig. 1 and 2, and comprises a hoistway simulation frame 1, an openable elevator door 2, a wheel set 3, a transmission mechanism 4, a rope clamping device 5 and a controller; a door mounting area 11 is arranged on one vertical surface of the hoistway simulation frame 1, and an elevator door 2 is arranged in the door mounting area 11; the wheel sets 3 are arranged along the vertical direction of the hoistway simulation frame 1, and steel wire ropes 31 are wound on the wheel sets 3; the rope clamp 5 is arranged in the hoistway simulation frame 1, and the steel wire rope 31 passes through the rope clamp 5; the transmission mechanism 4 is arranged outside the hoistway simulation frame 1, the transmission mechanism 4 is in transmission connection with the wheel set 3, and the transmission mechanism 4 is used for driving the steel wire rope 31 to run upstream of the wheel set 3 and the rope clamping device 5; the elevator door 2 is provided with a door lock with induction; a leveling zone 14 is arranged in the hoistway simulation frame 1, a leveling induction switch 6 is also arranged in the leveling zone 14, and the leveling induction switch 6 is used for detecting displacement information of the steel wire rope 31 in the leveling zone 14; the controller is arranged on the hoistway simulation frame 1, the controller is electrically connected with the rope clamping device 5, the door lock and the flat layer induction switch 6 in a communication mode respectively, and the controller is used for controlling the rope clamping device 5 according to detection information of the door lock and the flat layer induction switch 6.
The beneficial effects are that: through be equipped with dress door district 11 on the vertical one side of well simulation frame 1, install elevator door 2 in the dress door district 11 for can be in the opening and closing operation of elevator door 2 is carried out on the well simulation frame 1, the cooperation install the lock of taking the response on the elevator door 2, the lock give the controller feedback signal.
Further, through the arrangement of the wheel set 3, the transmission mechanism 4 and the rope clamping device 5 in the hoistway simulation frame 1, a steel wire rope 31 is wound on the wheel set 3, the steel wire rope 31 passes through the rope clamping device 5, and the wheel set 3 can be rotated through the transmission mechanism 4, so that the steel wire rope 31 is driven to run upstream of the wheel set 3 and the rope clamping device 5.
Because the flat layer induction switch 6 is also arranged in the flat layer area 14, the flat layer induction switch 6 is used for detecting displacement information of the steel wire rope 31 in the flat layer area 14; when the elevator door 2 is opened, triggering the door lock to send a signal to the controller; at this time, the transmission mechanism 4 drives the wheel set 3 to drive the steel wire rope 31 to move, when the steel wire rope 31 is detected by the leveling induction switch 6 to move beyond the leveling zone 14, the leveling induction switch 6 sends a signal to the controller, and the controller can be triggered to control the rope clamping device 5 to clamp the moving steel wire rope 31, so that the situation that the rope clamping device 5 emergently makes a safety brake when the elevator car is moved out of the leveling zone 14 after the elevator door 2 is opened is simulated.
As an alternative to the implementation of the method,
in this embodiment, as shown in fig. 1 and 2, the hoistway simulation frame 1 is constructed by an aluminum profile; the hoistway simulation frame 1 is a vertical cuboid frame.
The beneficial effects are that: the well simulation frame 1 is built by using the aluminum profile frame, has flexibility and convenient adjustment, and can be conveniently adjusted as follows: the positions of the elevator door 2, the wheel set 3, the transmission mechanism 4, the rope clamping device 5 and the controller are convenient for carrying out adaptive debugging and adjustment during display, and the compatibility of the device is high.
Further, in order to facilitate moving the display elevator car to accidentally move the protection device to simulate the action of the display table, as shown in fig. 1 and 2, the bottom of the hoistway simulation frame 1 is provided with casters 7.
Specifically, regarding the specific arrangement of the installation positions of the door installation area 11 and the elevator door 2, as shown in fig. 1 and 2, the door installation area 11 is disposed in the middle of the hoistway simulation frame 1, two door area cross bars 13 are installed between two adjacent columns 12 on one vertical side of the hoistway simulation frame 1, the two door area cross bars 13 are respectively connected vertically with two columns 12 in a top-bottom manner, and an area enclosed by the two door area cross bars 13 and the two columns 12 is the door installation area 11; the elevator door 2 is slidably mounted on the door zone crossbars 13; the elevator door 2 is opened or closed in a manual manner.
Regarding the specific structure of the wheel set 3 and the connection of the wheel set with the steel wire rope 31, the position of the rope clamping device 5 and the connection relation of the transmission mechanism 4, as shown in fig. 1 and 2, the driven wheel 33 is rotatably installed on the top in the hoistway simulation frame 1, and the driving wheel 32 is rotatably installed below the driven wheel 33; the steel wire rope 31 is arranged on the driving wheel 32 and the driven wheel 33 in a rope transmission mode; the rope gripper 5 is installed between the driving wheel 32 and the driven wheel 33 in the vertical direction; the rope gripper 5 is arranged above the elevator door 2 in the vertical direction; the driving wheel 32 is in transmission connection with the transmission mechanism 4.
Regarding the specific arrangement of the above-described wire ropes 31, this embodiment is shown in fig. 1 and 2, and the wire ropes 31 are provided in plural.
The beneficial effects are that: the plurality of steel wires 31 are arranged to make the simulated working condition of the rope clamp 5 more approximate to the actual working condition of the elevator safety component under the condition that the rope clamp 5 is simulated to work.
Regarding the specific structure of the transmission mechanism 4 and the specific connection relation between the transmission mechanism 4 and the driving wheel 32 and the steel wire rope 31, as shown in fig. 1 and 2, the transmission mechanism 4 is a hand wheel 41; a rotating shaft 321 is mounted on the driving wheel 32, the rotating shaft 321 is rotatably connected in the well simulation frame, and the hand wheel 41 is connected with the rotating shaft 321; the rotation of the hand wheel 41 is used for driving the lifting movement of the steel wire rope 31 on the driving wheel 32.
Regarding the specific structure of the flat layer induction switch 6 and the arrangement position thereof, as shown in fig. 1 and 2, the flat layer induction switch 6 includes a light shielding plate 61 and a flat layer inductor 62; the light shielding plate 61 is mounted on the hoistway simulation frame 1, the flat layer inductor 62 is mounted on the steel wire rope 31, and the induction part of the flat layer inductor 62 is mounted corresponding to the light shielding plate 61; the flat layer inductor 62 is in electrical communication with the controller.
Regarding the specific arrangement positions of the leveling sensor 62 and the rope gripper 5 and the wire rope 31, as shown in fig. 1 and 2, the wire rope 31 is pulled out from the driving wheel 32 and the driven wheel 33, the wire rope 31 is a gripping side 311 on the side adjacent to the elevator door 2, and the wire rope 31 is an induction side 312 on the side far from the elevator door 2; the flat layer inductor 62 is mounted on the induction side 312 of the steel cord 31; the gripper 5 is clamped on the clamping side 311 of the wire rope 31.
In use, the controller recognizes that the elevator car is now in the flat zone 14 when the flat layer sensor 62 senses the light shield 61, and recognizes that the elevator car is moving out of the flat zone 14 when the flat layer sensor 62 does not sense the light shield 61.
Working principle: (1) When the elevator car is in the flat zone 14 the elevator door 2 is opened manually, i.e. the door lock is opened and an opening signal is sent to the controller, at which time the rope gripper 5 is not activated. When the hand wheel 41 is rotated to move the steel wire rope 31, and the leveling sensor 62 arranged on the steel wire rope 31 cannot sense the light shielding plate 61, the controller judges that the elevator moves out of the leveling zone 14, and at the moment, the rope clamping device 5 immediately acts to clamp the steel wire rope 31 so as to simulate an emergency braking action when the elevator car moves out of the leveling zone 14.
(2) When the elevator door 2 is closed, the hand wheel 41 is rotated at this time to enable the steel wire rope 31 to move, and no matter the flat layer sensor 62 can not sense the light shielding plate 61 at this time, the controller does not enable the rope clamping device 5 to act.
Therefore, after the installation of the simulated elevator, the situation of emergency action made by the rope clamping device 5 occurs when the elevator door 2 is kept open and the movement amplitude exceeds the safety standard, which occurs in the operation of the elevator, and the elevator is convenient to display. And the simulated action display table of the accidental movement protection device of the elevator car cancels the design of the elevator car and the counterweight system, so that the manufacturing cost of the simulated action display table is reduced.
In particular, the door lock and the controller are not shown in the figures.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (9)
1. The simulated action display stand of the unexpected movement protection device of the elevator car is characterized in that,
comprises a well simulation frame, an openable elevator door, a wheel set, a transmission mechanism, a rope clamping device and a controller;
a door mounting area is arranged on one vertical surface of the hoistway simulation frame, and an elevator door is arranged in the door mounting area;
the wheel sets are arranged along the vertical direction of the hoistway simulation frame, and steel wire ropes are wound on the wheel sets;
the rope clamping device is arranged in the well simulation frame, and the steel wire rope passes through the rope clamping device;
the transmission mechanism is arranged outside the hoistway simulation frame and is in transmission connection with the wheel set, and the transmission mechanism is used for driving the steel wire rope to run on the wheel set and the rope clamping device;
the elevator door is provided with a door lock with induction; a leveling zone is arranged in the hoistway simulation frame, and a leveling induction switch is also arranged in the leveling zone and is used for detecting displacement information of the steel wire rope in the leveling zone;
the controller is arranged on the hoistway simulation frame, the controller is electrically connected with the rope clamping device, the door lock and the flat layer induction switch in a communication mode respectively, and the controller is used for controlling the rope clamping device according to detection information of the door lock and the flat layer induction switch.
2. The elevator car unexpected movement protection device simulated motion display stand of claim 1 wherein the hoistway simulation frame is constructed from aluminum profiles; the well simulation frame is a vertical cuboid frame.
3. The elevator car unexpected movement protection device simulated motion display stand of claim 2 wherein casters are mounted to the bottom of the hoistway simulation frame.
4. The simulated motion display stand of the unexpected movement protection device of the elevator car according to claim 2, wherein the door loading area is arranged in the middle of the hoistway simulation frame, two door area cross bars are arranged between two adjacent upright posts on one vertical side of the hoistway simulation frame, the two door area cross bars are respectively and vertically connected with the two upright posts in a one-to-one manner, and an area surrounded by the two door area cross bars and the two upright posts is a door loading area;
the elevator door is slidably mounted on the door zone cross bar; the elevator door is opened or closed in a manual manner.
5. The elevator car unintended movement protection device analog motion display stand of claim 4, wherein the wheel set comprises a drive wheel and a driven wheel;
the driven wheel is rotatably arranged on the top in the well simulation frame, and the driving wheel is rotatably arranged below the driven wheel;
the steel wire rope is arranged on the driving wheel and the driven wheel in a rope transmission mode;
the rope clamp is arranged between the driving wheel and the driven wheel in the vertical direction; the rope gripper is arranged above the elevator door in a vertical direction;
the driving wheel is in transmission connection with the transmission mechanism.
6. The elevator car unintended movement protection device analog action display stand according to claim 5, characterized in that the wire rope is provided with multiple wires.
7. The elevator car unintended movement protection device analog action display stand of claim 5, wherein,
the transmission mechanism is a hand wheel;
a rotating shaft is arranged on the driving wheel, the rotating shaft is rotatably connected in the well simulation frame, and the hand wheel is connected with the rotating shaft;
the rotation of the hand wheel is used for driving the steel wire rope on the driving wheel to move up and down.
8. The simulated motion display stand of an elevator car accidental movement protection device of claim 7, wherein said flat bed inductive switch comprises a shutter and a flat bed inductor;
the light shielding plate is arranged on the hoistway simulation frame, the leveling inductor is arranged on the steel wire rope, and the induction part of the leveling inductor is correspondingly arranged with the light shielding plate;
the flat layer inductor is electrically connected with the controller in a communication manner.
9. The simulated motion display stand of an unexpected movement protection device for an elevator car according to claim 8 wherein said steel wire ropes on both sides of said drive wheel and said driven wheel are pulled out, said steel wire rope on a side adjacent to said elevator door being a gripping side, said steel wire rope on a side remote from said elevator door being an induction side;
the flat layer inductor is mounted on the induction side of the steel wire rope;
the gripper is clamped on the clamping side of the wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321551888.9U CN220148935U (en) | 2023-06-16 | 2023-06-16 | Simulation action display stand of unexpected movement protection device of elevator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321551888.9U CN220148935U (en) | 2023-06-16 | 2023-06-16 | Simulation action display stand of unexpected movement protection device of elevator car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220148935U true CN220148935U (en) | 2023-12-08 |
Family
ID=89012351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321551888.9U Active CN220148935U (en) | 2023-06-16 | 2023-06-16 | Simulation action display stand of unexpected movement protection device of elevator car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220148935U (en) |
-
2023
- 2023-06-16 CN CN202321551888.9U patent/CN220148935U/en active Active
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