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45results about How to "Reduce the risk of falling from heights" patented technology

Novel telescopic type low-voltage tong-type ammeter

The invention discloses a novel telescopic type tong-type ammeter. The tong-type ammeter comprises a shell and an insulation telescopic rod fixedly connected with the bottom of the shell, a data display instrument is arranged at the bottom of the telescopic rod, the data display instrument is connected with a straight-through current transformer in the shell through a connecting wire inside the telescopic rod, the shell is a closed annular body composed of a fixed shell body and a rotating shell body hinged to the fixed shell body, the fixed shell body is fixedly connected with the telescopic rod, a fixed coil is fixedly arranged on the inner wall of the fixed shell body, a rotating coil is fixedly arranged on the rotating shell body, and under the normal state, a closed annular coil is composed of the fixed coil and the rotating coil. The novel telescopic type tong-type ammeter is suitable for measuring load currents on the low-voltage side and a branch circuit of a transformer of a distribution transformation table area, and is safe, efficient and convenient to use.
Owner:STATE GRID CORP OF CHINA +1

Petroleum drilling machine tower-shaped derrick sleeving mounting method

The invention discloses a petroleum drilling machine tower-shaped derrick sleeving mounting method. The method includes the steps that 1, a crown block and crown block frame is suspended to a wheeled flat car to be transported to a wellhead center line; 2, fine adjustment is conducted till the centers of ear plate holes of a left longitudinal girder and a right longitudinal girder and the centers of ear plate holes in the crown block and crown block frame are aligned with one another, fixedly connected and move upwards, meanwhile the wheeled flat car is moved to the right side of the wellhead center line, and a derrick upper segment is mounted; 3, the wheeled flat car is moved to the wellhead center line, a beam moves downwards along a left guide stand column and a right guide stand column, and connection lugs between the crown block and crown block frame and the derrick upper segment are connected; 4, fine adjustment is conducted on the beam, the left longitudinal girder and the right longitudinal girder till the centers of the ear plate holes in the left longitudinal girders and the right longitudinal girders and the centers of the ear plate holes in the lower end of the derrick upper segment are aligned with one another, fixedly connected and move upwards, meanwhile the wheeled flat car is moved to the right side of the wellhead center line, and a second derrick segment is mounted; 5, the above steps are repeated till all the other segments of the derrick are installed. According to the method, the derrick is assembled at a low position in a segmented mode, the derrick is gradually lifted after the segments are arranged in a sleeving mode, and the derrick is installed.
Owner:BAOJI PETROLEUM MASCH CO LTD +2

Efficient power cable conveying device

The invention discloses an efficient power cable conveying device which comprises a bottom plate. A rotating block is fixed to the lower end of the bottom plate. A balance weight is fixed to one sideof the lower end of the bottom plate. The lower end of the rotating block is rotationally connected with a bearing plate. The two sides of the lower end of the bearing plate are rotationally connectedwith rotary shafts. Walking wheels are mounted at the two ends of each of the two rotary shafts. Lifting devices are fixed to the side walls of the two ends of the bearing plate. Two parallel secondsliding grooves are formed in one side of the upper end of the bottom plate. According to the efficient power cable conveying device, through cooperation of oil cylinders and U-shaped arms, cables areerected in the high altitude, and the problem that workers frequently climb up and down is solved; through a conveying device and a rotating device, the problem about efficient continuous cable conveying in the high altitude is solved, efficient conveying is achieved, and meanwhile cable efficient recovery is achieved; and the work efficiency is improved, the manpower cost is saved, the labor intensity is reduced, and the danger that high-altitude falling happens during high-altitude work is indirectly reduced.
Owner:姚福泉

Automatic coating system for bridge, and construction method thereof

The invention discloses an automatic coating system for a bridge, and a construction method thereof. The automatic coating system for the bridge comprises a transport vehicle, an air compression system, a material holding system, a control system, a lifting system, a rail system and a spraying system, wherein the transport vehicle is used for movement of the automatic coating system for the bridge; the air compression system is connected with the material holding system through a gas supply pipeline, and the material holding system is connected with the spraying system through a material supply pipeline; the air compression system sprays a coating material in the material holding system onto a wall surface through the spraying system and via compressed air; and the rail system is fixedly arranged at the top end of the lifting system and the height of the rail system is adjusted through the lifting system, and the rail system is arranged in a manner of vertically facing the wall surfaceso that the spraying system arranged on the rail system vertically moves along the rail system. The automatic coating system for the bridge has the advantages of being high in maneuverability and automation degree, large in working height, high in applicability, and the like, and can be widely applied to the field of bridge construction.
Owner:广州珠江黄埔大桥建设有限公司 +1

Construction method for whole-roof-truss hoisting of air return narrow lane steel structures

The invention discloses a construction method for whole-roof-truss of air return narrow lane steel structures. The construction method includes the following steps that steel column bases are mountedon fixing supports; steel members are spliced and welded on the ground to form whole-roof-truss steel structures; after the whole-roof-truss steel structures are welded, the whole-roof-truss steel structures are hoisted in place, and the whole-roof-truss steel structures are subjected to direction control in the hoisting process; the whole-roof-truss steel members are temporarily fixed after beinghoisted in place, position correction is carried out, after position correction is carried out, all the whole-roof-truss steel members are temporarily fixed with the method, and every two adjacent whole-roof-truss steel members are connected. By means of the construction method for whole-roof-truss hoisting of the air return narrow lane steel structures, the amount of aloft work is reduced, meanwhile, the working efficiency is improved, and the construction period is shortened.
Owner:NO 1 CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU CO LTD

Auxiliary device for live installation of bird repeller

The invention discloses an auxiliary device for live installation of a bird repeller. The auxiliary device comprises a crawling mechanism, the crawling mechanism comprises a first fastening piece, a second fastening piece and a frame, the first fastening piece is installed at one end of the frame, the second fastening piece is installed at the other end of the frame, a walking frame is installed at the top of the crawling mechanism, a limiting mechanism is installed on the crawling mechanism, the limiting mechanism is matched with the crawling mechanism, and a moving mechanism is arranged on the walking frame. A worker does not need to climb an electric pole, the risk of high-altitude falling of the worker is greatly reduced, the personal safety of the worker is guaranteed, the crawling mechanism can drive the walking rack and the bird repelling device fixed to the fixing frame to climb to the top of the electric pole, and the position of the bird repelling device is adjusted under the action of the moving mechanism. Under the action of the fastening mechanism, the bird repeller is fixed on the cross arm, so that the bird repeller is mounted, and the working efficiency is greatly improved.
Owner:PINGYIN POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO +1

Mounting method for prefabricated parts based on strong light laser positioning technology

InactiveCN110485736AReduce the risk of falling from heightsReduce the probability of high-altitude fall hazardsUsing optical meansBuilding material handlingEngineeringTower crane
The invention discloses a mounting method for prefabricated parts based on a strong light laser positioning technology and relates to the technical field of prefabricated construction. The mounting method for the prefabricated parts based on the strong light laser positioning technology comprises a tower crane, a strong laser instrument, bolt sleeves, a prefabricated part, embedded bars and a cast-in-situ concrete slab. The mounting method comprises the following specific operations: S1, producing a base, and fixing the strong laser instrument on the base; S2, selecting the bolt sleeves and fixing the base in the bolt sleeves through bolts; and S3, embedding the bolt sleeves in the prefabricated part. According to the mounting method for the prefabricated parts based on the strong light laser positioning technology, the strong laser instrument is arranged and fixed on the prefabricated part, and the prefabricated part is positioned needing to be mounted is positioned by adopting laseremitted by the strong light laser instrument instead of manual positioning, so that the probability of high falling potential hazard of constructors is reduced; and meanwhile, the construction speed is promoted to be greatly increased and the positioning is more accurate.
Owner:CHINA MCC17 GRP

Strong electric field access device

The invention belongs to the technical field of electrified operation devices of high-voltage transmission lines, and particularly relates to a strong electric field access device. The strong electricfield access device comprises a traction system, an operation system and a protection system, wherein the traction system comprises a traction machine, a follower pulley and a lifting rope; the operation system comprises a three-dimensional framework I and a plane framework II, and the framework II is arranged at the upper end of the rear side of the framework I; a pedal I is arranged on the lower side of the framework I, and a connecting part I is arranged on the framework I; a pedal II is arranged on the left side and the right side of the framework I in a foldable mode; a plane framework III is arranged on the left side and the right side of the upper end of the framework I in a foldable mode; the upper end of the framework III is detachably connected with the framework II through a buckle; the lifting rope is connected with the traction machine, the follower pulley and the connecting part I in sequence; and a protection rope is connected with the connecting part I and a locking pulley. By virtue of the strong electric field access device, the labor intensity of operators can be reduced, the operation area can be expanded, and the operation can be facilitated, and meanwhile, the safety of the operating personnel is guaranteed, and the strong electric field access device is convenient to store in a warehouse, and is convenient to store and transport on roads.
Owner:STATE GRID SHANDONG ELECTRIC POWER +1

Optical cable signboard hanging device

The invention discloses an optical cable signboard hanging device. A telescopic insulation rod is adopted, a T-shaped connecting rod is inserted and connected onto the top end of the insulation rod, the two ends of a horizontal rod of the T-shaped connecting rod are provided with signboard support frames, the two ends of the top edge of a signboard are vertically and fixedly connected with wire clamp support rods, a wire clamp consists of two pieces of wire clamp bodies, the middle parts of the two pieces of wire clamp bodies are hinged through a pin shaft, in addition, a torsion spring is arranged on the pin shaft, the pin shaft of the wire clamps is fixedly connected with the top end of each wire clamp support rod in a T shape, the bottom end of the insulation rod is provided with a wire disc and a rocker handle used for rotating the wire disc, a rotating shaft of the wire disc is vertically and fixedly connected with the insulation rod, a rope pulling disc used for pulling the wire clamp to be opened is wound on the wire disc, and the upper end of the pull rope is connected with the lower ends of the two pieces of wire clamp bodies. When the optical cable signboard hanging device is adopted, the in-site installation and fixation can be realized without combining power cutoff or high-altitude climbing operation by workers, safety and high efficiency are realized, and the use is convenient.
Owner:STATE GRID CORP OF CHINA +1

Automatic crawling spraying machine and spraying method thereof

The invention discloses an automatic crawling spraying machine and a spraying method thereof. The automatic crawling spraying machine comprises a climbing system, an adsorption system and a spraying system, wherein the adsorption system and the spraying system are both arranged on the climbing system; the climbing system is composed of an upper climbing frame, a lower climbing frame and a pushing assembly; and the upper climbing frame and the lower climbing frame are connected through the pushing assembly and can be pushed. The automatic crawling spraying machine can be suitable for all bridge concrete faces and is wide in application range.
Owner:CCCC ROAD & BRIDGE SPECIAL ENG +2

Full-automatic net blocking/dismounting telescopic crossing frame

The invention discloses a full-automatic net blocking / dismounting telescopic crossing frame which comprises two frame bodies symmetrically and correspondingly arranged and equal in height, two spanning assemblies arranged between the frame bodies and located on the same horizontal plane, and a hard net blocking holding pole and an insulating net arranged between the spanning assemblies. The spanning assembly comprises two mutually symmetrical spanning units, and each spanning unit comprises a working platform connected with the outer side of the frame body, an adjusting support arranged on the upper side of the working platform, a telescopic net sealing large arm penetrating through the adjusting support and connected with the adjusting support, a butt joint mechanism arranged at the front end of the net sealing large arm and an anti-twisting mechanism arranged on the lower side of the net sealing large arm; the cross section of the adjusting support is a rectangular frame, and a longitudinal component and a transverse component which form the rectangular frame are provided with ball adjusting lead screws. The adjusting precision of net blocking / net disassembling and the impact resistance strength of the spanning frame are effectively improved, manual monitoring is reduced, and full-automatic net blocking / net disassembling is achieved.
Owner:CHINA ELECTRIC POWER RES INST +1

Safety protection device and method for preventing high-altitude climbing pole from falling off

The invention discloses a safety protection device for preventing a high-altitude climbing pole from falling off. The safety protection device comprises a waist tightening belt, wherein an electromagnet is fixed in the waist tightening belt, the electromagnet is connected with a pressing switch arranged on a glove through a wire, the pressing switch is arranged at the palm position of the glove, and the electromagnet is in a power-off state when the pressing switch is pressed down. The invention further provides a protection method based on the safety protection device. The safety protection device for preventing the high-altitude climbing pole from falling off is simple in structure, the electromagnet arranged on the waist tightening belt is used for effectively achieving the safety protection effect, and the risk that an operator falls off from a high altitude in the electric power overhaul process can be reduced.
Owner:YULIN UNIV

Method of entering strong electric field along ultrahigh-voltage tension insulator string and pedal device

The invention relates to a method of entering a strong electric field along an ultrahigh-voltage tension insulator string and a pedal device used thereby. Equal-potential electrician's feet are each equipped with a pedal device, a clamping mechanism of the pedal devices clamps an insulator steel cap, the electrician enters a strong electric field along a tension insulator string in an upright manner, and the feet move forward alternately along the tension insulator string to reach a work position. The pedal device comprises a clamping mechanism, a mechanism for supporting and fixing foot soles, and a mechanism for pressing or lifting the feet to make the clamping mechanism clamp or release an insulator steel cap. Workers can almost enter an electric field in an upright manner, so that the physical power consumption of workers is reduced. Compared with a method of entering a strong electric field in a sitting or squatting manner, workers feel more comfortable and convenient, the labor intensity is reduced greatly, and workers have enough physical power to complete follow-up charged operation work.
Owner:LIVE WORKING CENT OF STATE GRID HUNAN ELECTRIC POWER +3

Offline hanging ladder especially used for suspension-type composite insulator

The invention discloses an offline hanging ladder especially used for a suspension-type composite insulator. The offline hanging ladder comprises an insulation rope ladder. One end of the insulation rope ladder is connected to a hanging line aluminum hook which can be buckled to a lead via a shackle and the other end is connected to an adjustment lead screw via the shackle. The other end of the adjustment lead screw is connected to one end of an aluminum alloy cross arm fixed on a line iron tower cross arm head. The other end of the aluminum alloy cross arm is connected to a hook lead screw. The other end of the hook lead screw is provided with a hook which is buckled to a line iron tower material. By using the offline hanging ladder especially used for the suspension-type composite insulator, power transmission line employees can conveniently transfer wires up and down during acceptance check and maintenance work and the composite insulator is not damaged so that safety and work efficiency of work personnel are increased.
Owner:GUANXI POWER GRID CORP HEZHOU POWER SUPPLY BUREAU

Bolt clipper preventing falling off

The invention relates to the field of line construction equipment, in particular to a bolt clipper preventing falling off. The bolt clipper comprises a bolt clipper head, a first bolt clipper arm anda second bolt clipper arm. The first bolt clipper arm is hinged to the second bolt clipper arm. The first bolt clipper arm is provided with a linkage rod. The second bolt clipper arm is provided withreceding holes. The linkage rod penetrates through the receding holes. The second bolt clipper arm is internally provided with a guide sleeve and a positioning pin. The positioning pin is slidably arranged in the guide sleeve. A spring is arranged in the guide sleeve. The end, away from the spring, of the positioning pin is in contact with the linkage rod. The linkage rod is provided with a positioning hole matched with the positioning pin. A lift hook and a clamping strip are arranged on the outer wall of the second bolt clipper arm. The middle of the clamping strip is hinged to the lifting hook by a rotating shaft. The rotating shaft is provided with a torsional spring. A pulling rope is arranged at the other end of the clamping strip. The pulling rope penetrates through the guide sleeveand is connected with the positioning pin. Operators can be prevented from placing the bolt clipper on electric equipment in a floating mode, working efficiency of the operators can be improved, andphysical output can be reduced.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD QUZHOU POWER SUPPLY CO +1

Intelligent curtain wall cleaning system

ActiveCN108360832APut an end to infringementRealize smart cleaningBatteries circuit arrangementsWallsEngineeringSelf cleaning
The invention relates to an intelligent curtain wall cleaning system. The system comprises a controller, moving rails of upper and lower frames of a curtain wall and box-shaped vertical columns on theleft and right sides of the curtain wall, and the vertical columns are internally provided with columnar roller brushes; the upper and lower ends of the columnar roller brushes are respectively arranged in the moving rails of the upper and lower frames of the curtain wall, and can rotationally move along the moving rails to clean the curtain wall; a raindrop sensing device is arranged at the upper portion of one of the vertical columns, and the controller controls the columnar roller brushes to clean the curtain wall based on a detection result of the raindrop sensing device. The system achieves the intelligent self-cleaning of the curtain wall.
Owner:苏州苏明装饰股份有限公司

LED illuminating apparatus outer housing

The invention discloses a shell of an LED lighting device, the shell is made of magnesium alloy comprising the following compositions in percentage by mass: 1.6 to 10 percent of aluminum, 0.3 to 3.5 percent of zinc, 0.1 to 0.5 percent of manganese, less than and equal to 0.3 percent of silicon, less than and equal to 0.03 percent of iron, less than and equal to 0.25 percent of copper, less than and equal to 0.01 percent of nickel, less than and equal to 0.3 percent of the total amount of other elements or less than and equal to 0.01 percent of single amount of other elements, the other elements refer to rhenium, zirconium, silver, yttrium and lithium, the balance being magnesium.
Owner:NINGBO ANDY OPTOELECTRONIC CO LTD

Fabricated building curtain wall connecting structure

The invention provides a fabricated building curtain wall connecting structure, and relates to the field of building curtain walls, the fabricated building curtain wall connecting structure comprises a wall body, an adjusting assembly and a clamping assembly, one side of the wall body is fixedly connected with a connecting plate, one side of the connecting plate is provided with a connecting block, one side of the connecting block is provided with an adjusting block, and one side of the adjusting block is provided with a first fixing seat; a second fixing seat is connected to one side of the first fixing seat, a buffer plate and a waterproof plate are connected to one side of the second fixing seat, a supporting plate is arranged on one side of the waterproof plate, a curtain wall plate is fixedly connected to one side of the supporting plate, and an adjusting assembly is arranged between the connecting block and the adjusting block and used for adjusting the overall angle of the supporting plate and the curtain wall plate. According to the fabricated building curtain wall connecting structure, the angle of the curtain wall plate can be adjusted through the action of the connecting block and the adjusting block, mounting and dismounting by a user are facilitated, meanwhile, the curtain wall plate can have the independent dismounting capacity through cooperation of a button, a clamping block and a clamping groove, and cleaning and maintenance are facilitated.
Owner:倪小春

Intelligent protection e-commerce platform display device and method

The invention provides an intelligent protection e-commerce platform display device which comprises a base, a universal joint assembly, a clamping assembly and a protection assembly, and is characterized in that the universal joint assembly is connected with the base and the clamping assembly, the protection assembly comprises a spherical transparent protection cover, the base is provided with an annular groove body with an upward opening, A circular opening is formed in the bottom of the protective cover, and the bottom of the protective cover is detachably connected with the annular groove body. The display device has the advantages that the display angles of displayed objects are rich, and the displayed objects can be protected.
Owner:QINGDAO HUANGHAI UNIV

All-around protection operating platform for hole digging operation of manual hole digging pile

The invention relates to a safety protection device for the hole digging process of a manual hole digging pile, in particular to an all-around protection operating platform for hole digging operationof the manual hole digging pile. The all-around protection operating platform comprises an operating platform body arranged at the porthole of the manual hole digging pile, and a pail channel is arranged in the middle part of the operating platform body. The operating platform body comprises a support frame, and a protective screen plate is arranged at the support frame. A plurality of mounting plates are arranged around the support frame, and a mounting through hole is formed in any one mounting plate. The all-around protection operating platform can protect operating personnel in the hole digging process of the manual hole digging pile well.
Owner:ANHUI ELECTRIC POWER TRANSMISSION & TRANSFORMATION ENG +1

Transformer test wiring auxiliary tool

The invention relates to a transformer test wiring auxiliary tool which comprises an n-shaped wire clamp and an insulating rod used for supporting the wire clamp. The wire clamp is provided with two connecting plates, and each connecting plate is provided with a movable wiring board with a recessed circular pit in the middle. The inner side end of the connecting plate is connected with a contact piece; a spring with upper and lower ends exerting force is mounted on an opening side connecting plate of the wire clamp; the insulating rod is connected with a detachable supporting rod, the structure is simple, the wiring mode can be changed according to different test requirements in use, wiring personnel do not need to climb a sleeve, and the risk of falling from a high place is reduced; a bucket arm vehicle does not need to be used, the risks of mechanical collision and mistaken touching of electrified parts in the operation process are avoided, and wiring work can be completed by one person.

Optical cable sign hanging device

The invention discloses an optical cable signboard hanging device. A telescopic insulation rod is adopted, a T-shaped connecting rod is inserted and connected onto the top end of the insulation rod, the two ends of a horizontal rod of the T-shaped connecting rod are provided with signboard support frames, the two ends of the top edge of a signboard are vertically and fixedly connected with wire clamp support rods, a wire clamp consists of two pieces of wire clamp bodies, the middle parts of the two pieces of wire clamp bodies are hinged through a pin shaft, in addition, a torsion spring is arranged on the pin shaft, the pin shaft of the wire clamps is fixedly connected with the top end of each wire clamp support rod in a T shape, the bottom end of the insulation rod is provided with a wire disc and a rocker handle used for rotating the wire disc, a rotating shaft of the wire disc is vertically and fixedly connected with the insulation rod, a rope pulling disc used for pulling the wire clamp to be opened is wound on the wire disc, and the upper end of the pull rope is connected with the lower ends of the two pieces of wire clamp bodies. When the optical cable signboard hanging device is adopted, the in-site installation and fixation can be realized without combining power cutoff or high-altitude climbing operation by workers, safety and high efficiency are realized, and the use is convenient.
Owner:STATE GRID CORP OF CHINA +1

UHV line live working training device

The invention provides a training device for live work on UHV lines, which includes: an insulating support device with a preset height, a potential transfer rod, a simulated wire, a voltage generator, a suspension device and an insulator string; wherein, the insulating support device The bottom of the bottom is slidably connected to the ground, and the top of the insulating support device is provided with a bearing platform; the suspension device is connected with the simulated wire through an insulator string, and is used to suspend the simulated wire; the simulated wire and the bearing platform have a preset position in the horizontal direction distance; the voltage generator is connected with the analog wires, and is used to apply a preset voltage to the analog wires; a supporting body is arranged on the carrying platform, and the potential transfer rod is movably placed on the supporting body, and is used for contacting with the analog wires. In the present invention, the trainees can complete the potential transfer without the cooperation of other personnel, which reduces the workload of the staff and improves the training efficiency, and the insulating support device can be set at a preset height, reducing the risk of the trainees falling from high altitude.
Owner:CHINA ELECTRIC POWER RES INST +3

A new telescopic low-voltage clamp ammeter

The invention discloses a novel telescopic type tong-type ammeter. The tong-type ammeter comprises a shell and an insulation telescopic rod fixedly connected with the bottom of the shell, a data display instrument is arranged at the bottom of the telescopic rod, the data display instrument is connected with a straight-through current transformer in the shell through a connecting wire inside the telescopic rod, the shell is a closed annular body composed of a fixed shell body and a rotating shell body hinged to the fixed shell body, the fixed shell body is fixedly connected with the telescopic rod, a fixed coil is fixedly arranged on the inner wall of the fixed shell body, a rotating coil is fixedly arranged on the rotating shell body, and under the normal state, a closed annular coil is composed of the fixed coil and the rotating coil. The novel telescopic type tong-type ammeter is suitable for measuring load currents on the low-voltage side and a branch circuit of a transformer of a distribution transformation table area, and is safe, efficient and convenient to use.
Owner:STATE GRID CORP OF CHINA +1

An easily disassembled inward opening and inward door and window hinge with a load-bearing reinforced structure

The invention relates to an easily-handled inward tilt-turn door / window hinge assembly with a bearing reinforcing structure. The easily-handled inward tilt-turn door / window hinge assembly comprises a window frame connection structure and a window / door connection structure. The window frame connection structure is connected with the window / door connection structure through a hinge structure so that an extensible sliding door / window structure is formed. The easily-handled inward tilt-turn door / window hinge assembly is characterized in that the window frame connection structure comprises a window frame hinging plate, at least two rigid fasteners and at least two moving connectors; the rigid fasteners and the moving connectors are disposed on the window frame hinging plate; the rigid fasteners are arranged on the inner side of the window frame hinging plate; the moving connectors are arranged on the outer side of the window frame hinging plate; the rigid fasteners directly extending out of the bottom of the window frame hinging plate are integrated to the window frame hinging plate or are fixedly connected to the bottom of the window frame hinging plate; the moving connectors rotatably disposed at the bottom of the window frame hinging plate are internal-adjustment rotating members, and a moving adjusting connection structure of a window frame is formed by rotational adjustment of the moving connectors. The easily-handled inward tilt-turn door / window hinge assembly has the advantages such that bearing capacity is high, the window / door and the window frame can be stably connected, deformation or loosening rarely occurs, and safety is high.
Owner:佛山市顺德区勒流镇汇强金属制品有限公司

High-altitude conveying trolley and its maintenance method

The invention provides a high-altitude conveying trolley and a maintenance method thereof. The high-altitude conveying trolley comprises a board body (10), safe protection doors (20) arranged at two ends of the board body (10), a maintenance door (30) arranged on the board body (10), and a door lock control device, wherein the door lock control device is used for realizing interlock connection between a start switch of the safe protection doors (20) and an electromagnetic lock of the maintenance door (30). When the high-altitude conveying trolley is maintained, a maintainer opens the maintenance door (30) to enter the high-altitude conveying trolley, the safe protection doors (20) arranged at two ends of the board body (10) are automatically closed due to the interlock connection action, the maintainer is prevented from falling from the two ends of the high-altitude conveying trolley, the high-altitude falling risk of the maintainer during maintaining the high-altitude conveying trolley is effectively lowered, and the safety of the maintainer is guaranteed.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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