[go: up one dir, main page]

CN112295132A - System and method for mooring safety rope of hangar - Google Patents

System and method for mooring safety rope of hangar Download PDF

Info

Publication number
CN112295132A
CN112295132A CN202011117835.7A CN202011117835A CN112295132A CN 112295132 A CN112295132 A CN 112295132A CN 202011117835 A CN202011117835 A CN 202011117835A CN 112295132 A CN112295132 A CN 112295132A
Authority
CN
China
Prior art keywords
connecting piece
movable
movable beam
rope
hangar
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.)
Withdrawn
Application number
CN202011117835.7A
Other languages
Chinese (zh)
Inventor
邓江波
谭敬华
何冠林
陈颖生
李亮
钟毅明
邓朝国
梁健波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Aircraft Maintenance Engineering Co Ltd
Original Assignee
Guangzhou Aircraft Maintenance Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Aircraft Maintenance Engineering Co Ltd filed Critical Guangzhou Aircraft Maintenance Engineering Co Ltd
Priority to CN202011117835.7A priority Critical patent/CN112295132A/en
Publication of CN112295132A publication Critical patent/CN112295132A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/44Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages for storing aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Emergency Lowering Means (AREA)

Abstract

The invention discloses a system and a method for mooring a safety rope in an hangar, which comprises the following steps: the movable beam is driven by electric power respectively to drive two ends of the movable beam to slide and adjust along the length direction of the top frame, the movable beam can be adjusted to an angle corresponding to the front wing of the airplane, electromagnetic locks are arranged on the first connecting piece and the second connecting piece, and a movable beam guide groove is arranged at the bottom of the movable beam; the movable rope winder is connected with the movable beam guide groove in a sliding manner; the fixed rope winder is fixedly arranged at the top of the hangar and is opposite to the airplane body; a position detector mounted on the top frame; the control terminal is electrically connected with the first connecting piece, the second connecting piece, the movable rope winder and the fixed rope winder; the invention can move the safety rope to a maintenance position and conveniently adjust the length of the safety rope.

Description

System and method for mooring safety rope of hangar
Technical Field
The invention relates to an hangar safety rope mooring system and also relates to an hangar safety rope mooring method correspondingly applied to the mooring system.
Background
Before an airplane enters a hangar and is subjected to various maintenance operations, in order to prevent operators from falling from high altitude, a safety rope is generally tied at the top of the hangar to ensure the safety of the operators during high altitude maintenance; the maintenance positions and the heights of the airplanes are different due to different airplane types, the position where the safety rope is tied and the length of the safety rope need to be correspondingly adjusted by an operator, the operator needs to climb the top of the hangar to adjust the safety rope to another working position when finishing maintenance of one position, and the operator needs to repeatedly climb the top of the hangar to adjust the safety rope, so that the operation is troublesome, high in safety risk and low in working efficiency; after the aircraft is maintained, the safety rope is required to be detached or rolled up completely, so that the aircraft is prevented from being scratched or damaged by the safety rope when the aircraft enters and exits the hangar, and the top of the hangar needs to be climbed again by operating personnel, so that the labor intensity of the operating personnel is increased.
Disclosure of Invention
The invention aims to solve the first technical problem and provides a safety rope mooring system for an hangar.
The second technical problem to be solved by the invention is to provide a safe rope mooring method for an hangar, which is applied to the mooring system.
By applying the airplane hangar safety rope mooring system and method, the safety rope can be quickly moved to the maintenance position corresponding to the type of the airplane to be maintained, and the length of the safety rope can be conveniently adjusted, so that the working efficiency of maintenance personnel is improved, and the labor intensity is reduced.
To solve the first technical problem, the technical solution adopted by the present invention is as follows:
the two top frames are respectively and fixedly arranged at the top of the hangar and are respectively opposite to the front wings of the airplanes at the two sides of the airplane body;
the two movable beams are respectively arranged on the two top frames; the movable beam comprises a top frame, a movable beam, a first connecting piece and a second connecting piece, wherein the two ends of the movable beam are respectively provided with the first connecting piece and the second connecting piece, the first connecting piece and the second connecting piece can be driven by electric power respectively to drive the two ends of the movable beam to slide and adjust along the length direction of the top frame, the movable beam can be adjusted to an angle corresponding to the front wing of the airplane, the first connecting piece and the second connecting piece are both provided with electromagnetic locks, the electromagnetic locks are used for locking and fixing the first connecting piece and the second connecting piece with the top frame, and the bottom of the movable beam;
the at least two movable rope winders are respectively connected with the movable beam guide groove in a sliding manner; the movable rope winder slides and adjusts along the guide groove of the movable beam, and can wind up or put down the safety rope on the movable rope winder through electric drive;
the fixed rope winders are respectively and fixedly arranged at the top of the hangar and opposite to the airplane body, and can wind up or put down the safety rope on the fixed rope winders through electric drive;
the position detectors are respectively arranged on the top frame and used for detecting the positions of the first connecting piece and the second connecting piece on the top frame;
and the control terminal is arranged in the machine base and is electrically connected with the first connecting piece, the second connecting piece, the movable rope winder and the fixed rope winder through wires.
The first connecting piece comprises a fixed seat and a first electric pulley with a pulley yoke, wherein the fixed seat is fixedly arranged on the movable beam, the fixed seat is hinged with the pulley yoke of the first electric pulley, and the first electric pulley is connected with the top frame in a sliding manner;
the second connecting piece comprises a pulley seat and a second electric pulley with a pulley yoke, the pulley seat is in sliding connection with the movable beam, the pulley seat is hinged with the pulley yoke of the second electric pulley, and the second electric pulley is in sliding connection with the top frame.
The top frame is composed of two fixed beams parallel to the length direction of the airplane body, and one sides of the fixed beams and one side of the movable beam guide groove are provided with sliding contact line guide rails used for supplying power to the first electric pulley, the second electric pulley and a motor on the movable rope winder.
The position detectors are travel switches which are distributed at equal intervals along the length direction of the fixed beam.
To solve the second technical problem, the technical solution adopted by the present invention is as follows:
an hangar safety rope mooring method applied to the mooring system is characterized in that the hangar safety rope mooring method is based on the hangar safety rope mooring system of claim 1, and comprises the following steps:
a, electrifying a system, and inputting the model of the airplane to be maintained on a control terminal;
b, the control terminal calls maintenance position data corresponding to the model of the airplane, starts a position detector corresponding to the maintenance position on the top frame, and sends starting signals to motors on the first connecting piece and the second connecting piece to enable the movable beam to start moving;
c, when the movable beam moves to the corresponding maintenance position, the first connecting piece and the second connecting piece trigger the position detector positioned at the maintenance position to send a feedback signal to the control terminal;
d, the control terminal sends a starting signal to the electromagnetic locks on the first connecting piece and the second connecting piece after receiving the feedback signal, and simultaneously sends a stopping signal to the motors on the first connecting piece and the second connecting piece, the movable beam stops moving, and the electromagnetic locks open and lock the fixed movable beam;
and e, the control terminal sends starting signals to the movable rope winder and the fixed rope winder to enable the movable rope winder and the fixed rope winder to put down the safety ropes, and after the safety ropes are completely put down, maintenance personnel start subsequent airplane maintenance.
After the system in the step a is electrified, the control terminal sends self-checking signals to the movable beam, the movable rope winder and the fixed rope winder, so that the movable beam and the movable rope winder recover and correct the initial positions, and the safety ropes on the movable rope winder and the fixed rope winder are detected to be in a full-rolling state.
Compared with the prior art, the technology of the invention has the following advantages:
(1) the airplane hangar safety rope mooring system and the method can quickly move the safety rope to the maintenance position corresponding to the airplane type to be maintained, and can conveniently adjust the length of the safety rope, so that the working efficiency of maintenance personnel is improved, and the labor intensity is reduced;
(2) the airplane hangar safety rope mooring system and the airplane hangar safety rope mooring method have the advantages of simple overall structure, convenience in installation, simplicity in operation and low manufacturing cost, and are favorable for popularization and use.
Drawings
The invention is described in further detail below with reference to the figures and the specific embodiments
Fig. 1 is a schematic structural view of a safety rope mooring system of an hangar in the embodiment;
FIG. 2 is a schematic view of the left side structure of the top frame of the present embodiment;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic diagram of the right side structure of the top frame of the present embodiment;
FIG. 5 is a schematic view of the movable rope winder of the present embodiment;
FIG. 6 is a schematic structural view of the fixed rope winder of the present embodiment;
FIG. 7 is a schematic front view of the first connecting member of the present embodiment;
FIG. 8 is a side view of the first connecting member of the present embodiment;
FIG. 9 is a front view of the second connecting member of the present embodiment;
fig. 10 is a side view of the second connecting member of this embodiment.
Reference numbers on the drawings: the device comprises a movable beam 1, a first connecting piece 2, a fixed seat 2a, a first electric pulley 2b, a second connecting piece 3, a pulley seat 3a, a second electric pulley 3b, an electromagnetic lock 4, a movable beam guide groove 5, a movable rope winder 6, a fixed rope winder 7, a position detector 8, a control terminal 9, a fixed beam 10 and a trolley line guide rail 11.
Detailed Description
Referring to fig. 1 to 4, a safety rope mooring system for an hangar of the present embodiment includes:
the device comprises a top frame, two top frames and a movable beam guide groove 5, wherein the two top frames are fixedly arranged at the top of a hangar, the left top frame is opposite to the front wing of the airplane on the left side of the airplane body, the right top frame is opposite to the front wing of the airplane on the right side of the airplane body, each top frame is connected with a movable beam 1 in a sliding mode, one end of each movable beam 1 is provided with a first connecting piece 2, the other end of each movable beam 1 is provided with a second connecting piece 3, the first connecting pieces 2 and the second connecting pieces 3 are driven by electricity to drive the two ends of the movable beams 1 to adjust in a sliding mode along the length direction of the top frames, the movable beams 1 can be adjusted to the angle corresponding to the front wings of the airplanes, the first connecting pieces 2 and the second connecting pieces 3 are provided with electromagnetic locks 4, the first;
the two movable rope winders 6 are arranged, the movable rope winder 6 is connected with the movable beam guide groove 5 in a sliding mode, the movable rope winder 6 is adjusted in a sliding mode along the movable beam sliding groove 5, and a safety rope on the winder is wound up or put down through electric drive; according to actual needs, the number of the movable rope winders 6 can be correspondingly increased to meet the operation needs of operators at all positions on the wings; referring to fig. 5, the movable rope winder 6 comprises a frame, a reel and a motor, wherein a safety rope is wound on the reel, the reel is hinged in the frame, the motor is installed outside the frame, a main shaft of the motor extends into the frame and is in driving connection with the reel, and a pulley block in sliding connection with the movable beam guide groove 5 is arranged at the top of the frame;
seven fixed rope winders 7 are arranged, the fixed rope winders 7 are fixedly arranged at the top of the hangar and are opposite to the airplane body, and safety ropes on the fixed rope winders 7 can be wound up or put down through electric drive; according to actual needs, the number of the fixed rope winders 7 can be correspondingly increased or decreased so as to meet the operation requirements of operators at various positions on the airplane body; referring to fig. 6, the fixed rope winder 7 comprises a frame, a reel and a motor, wherein a safety rope is wound on the reel, the reel is hinged in the frame, the motor is installed outside the frame, a main shaft of the motor extends into the frame and is in driving connection with the reel, and the top of the frame is fixedly connected with the top of the hangar;
a plurality of position detectors 8, which are respectively mounted on the top frame, for detecting the positions of the first connecting member 2 and the second connecting member 3 on the top frame;
and the control terminal 9 is installed in the machine base, the control terminal 9 is electrically connected with the first connecting piece 2, the second connecting piece 3, the movable rope winder 6 and the fixed rope winder 7 through leads, and the control terminal 9 stores maintenance position data of each machine type.
Referring to fig. 7 and 8, the first connecting member 2 in this embodiment includes a fixed seat 2a and a first electric pulley 2b with a pulley yoke, the fixed seat 2a is fixedly installed on the movable beam 1, the fixed seat 2a is hinged to the pulley yoke of the first electric pulley 2b, and the first electric pulley 2b is slidably connected to the top frame;
referring to fig. 9 and 10, the second connecting member 3 in this embodiment includes a pulley holder 3a and a second electric pulley 3b having a pulley frame, the pulley holder 3a is slidably connected to the movable beam 1, the pulley holder 3a is hinged to the pulley frame of the second electric pulley 3b, and the second electric pulley 3b is slidably connected to the upper frame.
The top frame in this embodiment is composed of two fixed beams 10 parallel to the length direction of the airplane body, one side of each of the fixed beams 10 and the movable beam guide groove 5 is provided with a trolley line guide rail 11 for supplying power to the first electric pulley 2b, the second electric pulley 3b and the motor on the movable rope winder 6, and the length of the trolley line guide rail 11 corresponds to the length of the fixed beams 10 and the length of the movable beam 1.
The position detectors 8 in this embodiment are travel switches that are equally spaced along the length of the fixed beam 10.
The method for mooring the safety rope of the hangar comprises the following steps:
a, electrifying a system, and inputting the model of the airplane to be maintained on a control terminal;
b, the control terminal 9 calls maintenance position data corresponding to the model of the airplane, starts a travel switch corresponding to the maintenance position on the top frame, and sends starting signals to the motors on the first connecting piece 2 and the second connecting piece 3 to enable the movable beam 1 to start moving;
c, when the movable beam 1 moves to the corresponding maintenance position, the first connecting piece 2 and the second connecting piece 3 trigger a travel switch located at the maintenance position to send a feedback signal to the control terminal 9;
d, the control terminal 9 sends a starting signal to the electromagnetic locks on the first connecting piece 2 and the second connecting piece 3 after receiving the feedback signal, and simultaneously sends a stopping signal to the motors on the first connecting piece 2 and the second connecting piece 3, the movable beam 1 stops moving, the electromagnetic locks open and lock the fixed movable beam 1, so that the movable beam is prevented from sliding in the maintenance process, and the stability is improved;
e, the control terminal 9 sends a starting signal to the movable rope winder 6 and the fixed rope winder 7 to enable the movable rope winder 6 and the fixed rope winder 7 to put down the safety rope, and after the safety rope is completely put down, maintenance personnel start subsequent airplane maintenance; in the maintenance process, the movable rope winder 6 can slide to a position corresponding to the maintenance operation position along the movable beam guide groove 5 by pulling the safety rope, and the length of the safety rope can be adjusted by controlling the terminal 9.
After the system in the step a is powered on, the control terminal 9 sends self-checking signals to the movable beam 1, the movable rope winder 6 and the fixed rope winder 7, so that the movable beam 1 and the movable rope winder 6 recover and correct the initial positions, and the safety ropes on the movable rope winder 6 and the fixed rope winder 7 are detected to be in all rolling-up states, so that the safety ropes are ensured to be located at the initial positions, the situation that the safety ropes are not rolled up completely is avoided, and the airplane is hung, touched or damaged in the moving process of the movable beam 1.
Therefore, the hangar safety rope mooring system and the hangar safety rope mooring method in the embodiment can quickly move the safety rope to the maintenance position corresponding to the type of the maintained airplane, can conveniently adjust the length of the safety rope, improve the working efficiency of maintenance personnel, reduce the labor intensity, reduce the overhead operation of the maintenance personnel and increase the safety; the novel electric heating cooker is simple in overall structure, convenient to install, simple to operate, low in manufacturing cost and beneficial to popularization and use.
The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and various other modifications, substitutions and alterations can be made to the above-described structure of the present invention without departing from the basic technical concept of the present invention as described above, according to the common technical knowledge and conventional means in the field of the present invention.

Claims (6)

1. An hangar safety line tethering system, comprising:
the two top frames are respectively and fixedly arranged at the top of the hangar and are respectively opposite to the front wings of the airplanes at the two sides of the airplane body;
the two movable beams are respectively arranged on the two top frames; the movable beam comprises a top frame, a movable beam, a first connecting piece and a second connecting piece, wherein the two ends of the movable beam are respectively provided with the first connecting piece and the second connecting piece, the first connecting piece and the second connecting piece can be driven by electric power respectively to drive the two ends of the movable beam to slide and adjust along the length direction of the top frame, the movable beam can be adjusted to an angle corresponding to the front wing of the airplane, the first connecting piece and the second connecting piece are both provided with electromagnetic locks, the electromagnetic locks are used for locking and fixing the first connecting piece and the second connecting piece with the top frame, and the bottom of the movable beam;
the at least two movable rope winders are respectively connected with the movable beam guide groove in a sliding manner; the movable rope winder slides and adjusts along the guide groove of the movable beam, and can wind up or put down the safety rope on the movable rope winder through electric drive;
the fixed rope winders are respectively and fixedly arranged at the top of the hangar and opposite to the airplane body, and can wind up or put down the safety rope on the fixed rope winders through electric drive;
the position detectors are respectively arranged on the top frame and used for detecting the positions of the first connecting piece and the second connecting piece on the top frame;
and the control terminal is arranged in the machine base and is electrically connected with the first connecting piece, the second connecting piece, the movable rope winder and the fixed rope winder through wires.
2. The hangar safety line tethering system of claim 1,
the first connecting piece comprises a fixed seat and a first electric pulley with a pulley yoke, the fixed seat is fixedly arranged on the movable beam, the fixed seat is hinged with the pulley yoke of the first electric pulley, and the first electric pulley is connected with the top frame in a sliding manner;
the second connecting piece comprises a pulley seat and a second electric pulley with a pulley yoke, the pulley seat is in sliding connection with the movable beam, the pulley seat is hinged with the pulley yoke of the second electric pulley, and the second electric pulley is in sliding connection with the top frame.
3. The hangar safety rope mooring system of claim 2, wherein the top frame is composed of two fixed beams parallel to the length direction of the airplane body, and one side of each of the fixed beams and the movable beam guide groove is provided with a trolley line guide rail for supplying power to the first electric pulley, the second electric pulley and the motor on the movable rope winder.
4. The hangar safety line tethering system of claim 3, wherein the position detectors are travel switches that are equally spaced along the length of the fixed beam.
5. An hangar safety rope mooring method, characterized in that the hangar safety rope mooring method is based on the hangar safety rope mooring system of claim 1, and comprises the following steps:
a, electrifying a system, and inputting the model of the airplane to be maintained on a control terminal;
b, the control terminal calls maintenance position data corresponding to the model of the airplane, starts a position detector corresponding to the maintenance position on the top frame, and sends starting signals to motors on the first connecting piece and the second connecting piece to enable the movable beam to start moving;
c, when the movable beam moves to the corresponding maintenance position, triggering a position detector at the maintenance position to send a feedback signal to the control terminal;
d, the control terminal sends a starting signal to the electromagnetic locks on the first connecting piece and the second connecting piece after receiving the feedback signal, and simultaneously sends a stopping signal to the motors on the first connecting piece and the second connecting piece, the movable beam stops moving, and the electromagnetic locks open and lock the fixed movable beam;
and e, the control terminal sends starting signals to the movable rope winder and the fixed rope winder to enable the movable rope winder and the fixed rope winder to put down the safety ropes, and after the safety ropes are completely put down, maintenance personnel start subsequent airplane maintenance.
6. The hangar safety rope mooring method according to claim 5, characterized in that after the system in step a is powered on, the control terminal sends self-checking signals to the movable beam, the movable rope winder and the fixed rope winder, so that the movable beam and the movable rope winder are restored and the initial positions are corrected, and the safety ropes on the movable rope winder and the fixed rope winder are detected to be in a fully-rolled state.
CN202011117835.7A 2020-10-19 2020-10-19 System and method for mooring safety rope of hangar Withdrawn CN112295132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011117835.7A CN112295132A (en) 2020-10-19 2020-10-19 System and method for mooring safety rope of hangar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011117835.7A CN112295132A (en) 2020-10-19 2020-10-19 System and method for mooring safety rope of hangar

Publications (1)

Publication Number Publication Date
CN112295132A true CN112295132A (en) 2021-02-02

Family

ID=74327881

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011117835.7A Withdrawn CN112295132A (en) 2020-10-19 2020-10-19 System and method for mooring safety rope of hangar

Country Status (1)

Country Link
CN (1) CN112295132A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2307266A (en) * 1995-11-17 1997-05-21 County Safety Serv Ltd Fall arrest system
CN102458593A (en) * 2009-05-19 2012-05-16 利佩特控股(英国)有限公司 Apparatus and method for providing climbing assistance
JP2012152316A (en) * 2011-01-25 2012-08-16 Ashimori Industry Co Ltd Fall prevention equipment
CN106422107A (en) * 2016-10-28 2017-02-22 宁波天派智能科技有限公司 Falling-preventing safety protection device
JP2019188009A (en) * 2018-04-27 2019-10-31 藤井電工株式会社 Fall prevention instrument
CN214105624U (en) * 2020-10-19 2021-09-03 广州飞机维修工程有限公司 Safety rope mooring system for hangar

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2307266A (en) * 1995-11-17 1997-05-21 County Safety Serv Ltd Fall arrest system
CN102458593A (en) * 2009-05-19 2012-05-16 利佩特控股(英国)有限公司 Apparatus and method for providing climbing assistance
JP2012152316A (en) * 2011-01-25 2012-08-16 Ashimori Industry Co Ltd Fall prevention equipment
CN106422107A (en) * 2016-10-28 2017-02-22 宁波天派智能科技有限公司 Falling-preventing safety protection device
JP2019188009A (en) * 2018-04-27 2019-10-31 藤井電工株式会社 Fall prevention instrument
CN214105624U (en) * 2020-10-19 2021-09-03 广州飞机维修工程有限公司 Safety rope mooring system for hangar

Similar Documents

Publication Publication Date Title
US5732795A (en) Power and communication for elevator car without traveling cable
US11078043B2 (en) Elevator overrun systems
CN105358468A (en) Expansion of a shaft region
US10486829B2 (en) System of driving channels for a carriage for transporting airplanes on an airport apron
CN210838510U (en) Power distribution cabinet with lifting mechanism
CN214105624U (en) Safety rope mooring system for hangar
CN112295132A (en) System and method for mooring safety rope of hangar
JP5327655B2 (en) Transport equipment
CN212924049U (en) Motor unit and elevator provided with same
CN110329287B (en) Overhead contact system overhauls operation car and auxiliary device thereof
CN114873392B (en) Non-blind area safety switching device and switching method for elevator control cabinet
CN110525954A (en) A kind of white body assembly offline system automatically
CN211829477U (en) Power taking device of steel grabbing machine
CN208531581U (en) A kind of white body assembly offline system automatically
CN214570537U (en) Safety protection lift for aerial work platform
CN209275918U (en) Locking device for elevator safety rescue system
CN220809266U (en) Installation equipment of roof shielding cloth
CN114014206A (en) Lifting device of insulating spraying robot
CN217676424U (en) Lifting tower for maintaining crown block
CN221216736U (en) Automatic flexible sedan-chair top guardrail device
CN113184694B (en) Quick splicing type electric equipment lifting device for transformer substation
CN109823994A (en) Exempt to climb device stay-supported dual fail-safe emergency stop device
CN209740448U (en) elevator rescue system with remote safety rescue function
CN215854505U (en) Safety protection device suitable for manned elevator
CN216116716U (en) Test device for electrified railway contact net pillar performance

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210202