97results about How to "Reduce risk of tipping" patented technology

The invention discloses a musical instrument rack, comprising a main rod, a sliding joint disposed at the main rod in a sleeving manner and at least five legs. The legs can be connected to the sliding joint in a rotating manner. Each leg is provided with a center arm which is hinged between the leg and the rack. The length of the centre arm of each leg is equal to the distance between the two hinged points of the leg. The musical instrument rack is advantageous in that the stability of the rack can be improved through adding and arranging legs, and the rack can be prevented from turning over; the legs are connected to the sliding joint in a rotating manner, and thereby the rack can be contracted and can expand outwardly; the carrying and storing of the rack can be facilitated.

The invention aims to provide a bridge surface support mode, and aims to solve the difficult problem of the falling and supporting of the existing bridge. A support beam falling method for the surfaces of middle and small bridges comprises the steps that assistant support piers and jacking support piers are separately arranged; the assistant support piers are positioned at the lower parts of two ends of a steel girder; the tops of the assistant support piers are connected with the lower part of the steel girder; the jacking support beams are positioned at two side parts of the bridge and are connected to the top surface of the steel girder by jacking supports; the falling of the position of the steel girder is realized in a mode that the steel girder is alternatively supported by the assistant support piers and the jacking support piers. A special support device comprises the assistant support piers and the jacking support piers, wherein the assistant support piers are positioned at the lower parts of two ends of the steel girder and the tops of the assistant support piers are connected to the lower part of the steel girder; the jacking support piers are positioned at two side parts of the steel girder and are connected to the top surface of the steel girder by the jacking support. The assistant support piers and the jacking piers are separately arranged, so the problems of low construction efficiency and narrow work surface as all support piers are arranged at the position of bridge pier cover beams are solved, the beam falling risk is reduced and the economic benefits are improved.

The invention provides a cement telegraph pole with a deviation measuring function, and belongs to the technical field of electric power facilities. The cement telegraph pole comprises a pole body anda base arranged on the lower part of the pole body. The middle part of the base is provided with a mounting hole used to hold the pole body. A shaft in the mounting hole is vertical to the top surface of the base. The top surface of the base is provided with an annular water tank used to detect whether the top surface of the base is horizontal. The side wall of the annular water tank is providedwith a horizontal marked line, and the top wall is provided with a water inlet pipe and a water outlet pipe. The top wall of the annular water tank is provided with scale mark vertical to the horizontal marked line. The invention provides the cement telegraph pole with a deviation measuring function, and an objective is to solve technical problems that an existing telegraph pole is simple in structure, and a foreign object is needed to measure perpendicularity of the telegraph pole.

The invention provides a three-dimensional memory and a preparation method thereof. The preparation method comprises the following steps: providing a substrate, and forming a first stacking structureon the stacking surface of the substrate; etching the first stacked structure to form a first sub-channel hole penetrating through the first stacked structure; etching the first stacking structure onone side of the first sub-channel hole to form a first sub-gate gap penetrating through the first stacking structure; forming a second stacking structure on one surface, deviating from the substrate,of the first stacking structure; etching the second stacking structure at the position, aligned with the first sub-channel hole, of the second stacking structure to form a second sub-channel hole penetrating through the second stacking structure; and etching the second stacked structure at a position, aligned with the first sub-gate gap, of the second stacked structure to form a second sub-gate gap penetrating through the second stacked structure. The preparation method provided by the invention solves the problem that the electrical performance and yield of the three-dimensional memory are influenced due to high gate gap stacking height, serious inclination risk and easy generation of leakage current in an etching process in the prior art.

The invention relates to a support mechanism of single-track avoidance-free stereoscopic parking equipment. The support mechanism comprises a movable chassis, a linear guide rail, top surface guide wheels, side edge guide wheels and bevel edge wheels, wherein the top surface guide wheels are connected with the movable chassis through a moving main shaft; annular grooves are arranged on the peripheries of the top surface guide wheels and are matched with the top surface of the linear guide rail; the side edge guide wheels are connected to the bottom of the movable chassis through side wheel shafts and are horizontally arranged; the peripheries of the side edge guide wheels are contacted with the upper edge of the linear guide rail; the bevel edge wheels are connected to the bottom of the movable chassis through a height adjusting rack; and the bevel edge wheels are arranged on the side faces of the linear guide rail. The annular grooves are arranged on the peripheries of the top surface guide wheels of the support mechanism of the single-track stereoscopic parking equipment, and are clamped on the top surface of the linear guide rail, so that a better guide effect is realized and the movable chassis is guaranteed to walk in a straight line along the linear guide rail; and in addition, the circumferential surfaces of the annular grooves are contacted with the top surface of the linear guide rail, and a better bearing effect is realized.

The invention relates to the technical field of chemical fiber processing equipment, in particular to a polyamide fiber spinning cake stacking device. The polyamide fiber spinning cake stacking devicecomprises an electric linear sliding table, lead screw lifting mechanisms used for driving the electric linear sliding table to ascend and descend and a grabbing manipulator arranged on the electriclinear sliding table, and further comprises a stacking positioning mechanism; and the stacking positioning mechanism is placed on the moving path of the electric linear sliding table. The polyamide fiber spinning cake stacking device is novel in design and convenient to use, can be suitable for grabbing and stacking spinning cakes with different specifications, can effectively reduce the risk thatthe polyamide fiber spinning cakes incline and topple over in the stacking process, has high applicability and is suitable for further application and popularization.

The invention provides a method for evaluating inclination of ocean platforms, and belongs to the technical field of ocean engineering. The method includes monitoring measurement data of strain sensors on legs in real time to acquire inclination state matrixes of the ocean platforms; performing association analysis on the inclination state matrixes; acquiring integral inclination images of the ocean platforms to visually display inclination states of the ocean platforms. The method has the advantages that auxiliary decisions can be made by the aid of the method with appropriate safety coefficients, so that operators can master deformation trend conditions of the legs; warning can be carried out when preset deformation values are exceeded, accordingly, the legs can be timely adjusted, and pile pitching and extracting operation on the legs of lifting ships of the ocean platforms can be effectively guided.

The present invention relates to a contact element (1) for an electric plug connector, having a jack portion (2) which has an opening (9) which specifies an insertion direction (E) for insertion of a pin contact (30) into the jack portion (2), and having a contact spring (13) which is connected via at least one root (15a, 15b) to the jack portion (2) and with which a contact force can be exerted on the pin contact transversely to the insertion direction (E). The invention further relates to an equipping arrangement (100) for equipping electric plug connectors with at least one contact element (1) according to the invention. In order to be able to ensure a further miniaturisation of contact elements (1) while maintaining desired contact forces, it is provided according to the invention that the contact spring (13) extends from the root (15a, 15b) substantially counter to the insertion direction (E) extending towards the opening (9).

The invention relates to a plate hoisting device for house building construction. The plate hoisting device for house building construction comprises a bearing plate, wherein a top plate is connectedto the bearing plate through a vertical rod; a floating base penetrates through the center of the bearing plate in the length direction of the vertical rod and is slidably connected to the center of the bearing plate; a first ball penetrating out of the upper surface of the floating base is embedded in and rotatably connected to the upper surface of the floating base; a supporting rod used for abutting against the ground to enable the first ball to penetrate out of the upper surface of the bearing plate is arranged on the lower surface of the floating base; abutting plates used for sliding towards the floating base in a reciprocating mode are slidably connected to the positions, between the bearing plate and the top plate, of two sides of the floating base; the top plate is provided with open grooves in the sliding directions of the abutting plates; the two abutting plates are slidably connected with the open grooves through sliding blocks correspondingly; the two sliding blocks penetrate out of the open grooves correspondingly and are rotatably connected with inclined rods with the same length; the ends, away from the sliding blocks, of the two inclined rods are connected througha hanging scaffold; the inclined rods are rotatably connected with the hanging scaffold; and hooks are arranged on the hanging scaffold. The plate hoisting device for house building construction provided by the invention has an effect on improving the safety during plate lifting.

The invention relates to the field of clothes and particularly relates to an anti-toppling clothes showing stand and a working process. The showing stand comprises a placing ring, a placing frame, piezoelectric ceramics, a balancing weight and an electromagnetic block, wherein a plurality of first magnetic strips are arranged on the placing ring connected to the base, and the first magnetic stripsand second magnetic strips arranged on the surface of the clothes hanger attract each other in a magnetic mode; a plurality of placing racks are connected with one another to form a circular ring with an upward convex ring surface, and the placing racks can be bent downwards to extrude the plurality of piezoelectric ceramics arranged on the placing ring; the piezoelectric ceramic is electricallyconnected with the electromagnetic blocks, the electromagnetic blocks, the balancing weights and the containing frame correspond to one another, the electromagnetic blocks are closer to the containingring than the balancing weights, and the multiple balancing weights are movably arranged on the base. By adopting the structure that the balancing weight is movably arranged on the base, the stress of the base can be automatically adjusted in real time, the risk that the base topples over in the using process is reduced, a worker does not need to pay attention to and adjust clothes hangers and clothes on the clothes showing stand in real time, and the workload of the worker is reduced.

The invention discloses an intelligent lamp holder for an automobile collision test. The intelligent lamp holder comprises a longitudinal double-beam support, a transverse double-beam support and an illumination headlamp mounting support, wherein a transverse guide rail is mounted at the top end of the longitudinal double-beam support; rail beams are arranged on two sides of the bottom end of the longitudinal double-beam support; the longitudinal double-beam support is mounted at the top of I-shaped steel through the rail beams; the bottom end of the I-shaped steel is fixedly mounted on a boss of a building wall; the transverse double-beam support is mounted on the longitudinal double-beam support; a winch servo motor is mounted on each of two sides of the top end of the transverse double-beam support; the illumination headlamp mounting support is connected with the winch servo motors through traction ropes; and a plurality of illumination headlamps are fixed at the bottom end of the illumination headlamp mounting support. The intelligent lamp holder has the advantages that the servo motors are matched with a speed reducer, the moving speed and rotating angle of the lamp holder can be adjusted optionally, and the lamp holder is good in stability during adjustment; and the lamp holder is convenient to use and high in safety, and the problems that the lamp holder is small in adjustable range and low in adjusting accuracy during the automobile collision test are solved.

The invention discloses a method and device for assisting the construction of an underwater open caisson. Water flow is divided by using a flow dividing structure capable of performing flow dividing on water, and the open caisson is installed behind the flow dividing structure, wherein a V-shaped curtain formed by connecting two plate-shaped structures is included. The method and device for assisting the construction of the underwater open caisson have the beneficial effects that the flow field characteristics of the water flow in an open caisson area can be changed by utilizing the flow dividing structure, the water flow speed is reduced, the water flow impact force on the open caisson in the process of the open caisson can be reduced, the reduction of resistance in the process of the open caisson is facilitated, then the scale of an open caisson positioning device is reduced, the positioning accuracy of the open caisson is improved, the efficiency of construction of open caisson positioning is improved, and the risk of the open caisson construction is reduced significantly.

The invention discloses a novel automatic bottle unloading device for canned bottles. The novel automatic bottle unloading device comprises a destacking bin. The top end and one side of the destacking bin are provided with a supporting and limiting mechanism and a tray stacking mechanism correspondingly. The supporting and limiting mechanism comprises a two-way screw rod. A sliding sleeve is arranged on the two-way screw rod, and a side alignment plate is arranged at the bottom end of the sliding sleeve. The tray stacking mechanism comprises a stacking oil cylinder and a lifting frame. The bottom end of the lifting frame is rotationally connected with a rotating shaft through a torsional spring. A connecting rod connected with a driving part is fixedly arranged on the rotating shaft. A lifting plate is arranged at the top end of the lifting frame, and a conical guide plate is arranged at the bottom of the lifting plate. The empty bottles on the topmost layer can be forced to be straightened to be neat by being limited by the side alignment plate, and operation can be implemented by turning a rocker with one hand. The lifting plate plays a role in supporting and lifting, and when a tray is lifted and touches the conical guide plate, the lifting frame is forced to expand towards the two sides. When the bottle reaches a certain height, the lifting plate is re-inserted into a fork hole of the tray under the elastic reset of the torsional spring, and the lifting plate can be forked out by a forklift after stacking is finished.

The invention discloses a medical wheelchair damping device. The medical wheelchair damping device comprises a transverse buffering frame, a main supporting arm, a bottom frame, a damping platform, an auxiliary supporting arm, a suspended rotating structure, a sliding buffering structure and a connecting rod structure, wherein the damping platform is arranged above the transverse buffering frame, and the suspended rotating structure is arranged between the damping platform and the transverse buffering frame. The suspended rotating structure comprises a lower vertical plate and an upper vertical plate, wherein the lower vertical plate is fixed to the upper surface of the transverse buffering frame, the upper vertical plate is fixed to the lower surface of the damping platform, a movable connecting shaft is arranged between the lower vertical plate and the upper vertical plate, springs I are arranged between the four corners of the lower surface of the damping platform and the four corners of the upper surface of the transverse buffering frame, and the transverse buffering frame is arranged over the bottom frame. The medical wheelchair damping device is novel in structural design, safe, stable, capable of adapting to various road surfaces and good in balance, rollover of the wheelchair is prevented, multi-directional shock filtering is achieved, and the comfort of a patient is greatly improved.

The invention belongs to the technical field of chest drainage bottles, and provides a chest drainage bottle anti-toppling device. The device comprises an outer frame and an inner frame containing a drainage bottle. The inner frame is horizontally in sliding fit with the outer frame, and the device has the technical effects that the operation difficulty of a patient is small, the anti-toppling effect is more remarkable, the structure is simpler, and the promotion cost is lower.

The invention relates to the technical field of energy-saving signal lamps, and discloses energy-saving and consumption-saving height-changing signal control equipment according to weather. The equipment comprises a shell, wherein the top of the shell is movably connected with a supporting plate, the surface of the supporting plate is fixedly connected with a lamp source, the interior of the shell is fixedly connected with a holding plate located at the bottom of the supporting plate, a rotating shaft is movably connected to the surface of the holding plate, a winding shaft is fixedly connected to the interior of the rotating shaft, a pull rope is movably connected to the surface of the winding shaft, meshing rods are movably connected to the left end and the right end of the rotating shaft, fan blades are movably connected to the surfaces of the meshing rods, guide blocks are movably connected to the interiors of the fan blades, adjusting springs are movably connected to the surfaces of the guide blocks, and a spring frame is movably connected to the surface of the rotating shaft in the shell. When the supporting plate moves downwards, the supporting plate extrudes the spring frame through the holding plate, and the spring frame contracts to prepare for the supporting plate to recover to the original state when the wind stops, so that the effect of controlling the height of the signal lamp according to the weather air volume to reduce the toppling risk is achieved.

The invention concerns an ultrasonic transducer, comprising a coupling element which has a first recess, the first recess being provided for the arrangement of a piezoelectric element which feeds an ultrasound signal into the coupling element, and there being disposed between the piezoelectric element and the coupling element an intermediate layer which comprises a metal disc, the metal disc comprising retaining elements (a) each with a first segment lying on the same plane as the metal disc and projecting radially from the perimeter of the metal disc and (b) each having a second segment which adjoins the first segment, projects from the plane of the metal plate and is connected to the first segment.

The invention relates to a device facilitating construction of an external wall and relates to the technical field of building construction. The device comprises two fixed supports, rotating assemblies and a hoisting assembly. The two fixed supports are fixedly mounted on a building roof to be constructed. Each rotating assembly comprises a driving source and a rotary sleeve, wherein the driving source drives the rotary sleeve to rotate, and the rotary sleeve is located on the side, facing the external wall to be constructed, of the corresponding fixed support and is rotatably connected with amounting rack. The hoisting assembly comprises hoisting ropes, a base, a first guard bar, a sliding part and a safety rope, wherein the hoisting ropes are wound on the periphery of the rotary sleevesand hoisted to the base. The first guard bar is connected with the base and located on the side, facing the external wall, of the base. The sliding part is located on the first guard rail and is slidably arranged in the length direction of the first guard rails. One end of the safety rope is connected and fixed to the sliding part, and the other end of the safety rope can be coiled on construction personnel. The device has the effect of reducing the construction difficulty of the external wall for construction personnel during aloft work

The invention discloses an active safety device of an intelligent wheelchair. The active safety device comprises a chassis component, a longitudinal movement component, a lateral movement component and a controller, wherein the chassis component comprises a chassis and shock absorption mechanisms which are respectively arranged on four corner ends of the chassis, and the shock absorption mechanisms are connected with a motor shaft of a driving wheel, and comprise four pressure sensors, the four pressure sensors are respectively located at positions of the four corner ends of the chassis and are used for collecting pressure data of four directions; and the controller is electrically connected with driving motors of the lateral movement component and the longitudinal movement component, andthe four pressure sensors respectively, and is used for controlling the action processes of the lateral movement component and the longitudinal movement component. The active safety device disclosed by the invention can actively perform protection to a certain extent, and can perform avoidance before risks; and the active safety device can make judgment before a user has dumping hidden danger, andcan adjust the state of the user timely, so that the safety of the user is increased, and the dumping risks of the user are reduced.

The invention discloses an active safety control method of an intelligent wheelchair. The active safety control method of the intelligent wheelchair comprises the steps of: S1, respectively acquiringpressure data of four corner positions of the chassis part of the wheelchair in real time through four pressure sensors; S2, performing contrastive analysis on the pressure data acquired by the four pressure sensors through a controller, calculating whether the wheelchair part is at the gravity safety position, if so, executing the step S3, and otherwise, executing the step S4; S3, controlling a transverse moving part and a longitudinal moving part below the wheelchair to move by the controller, so that the wheelchair is at the gravity safety position; S4, controlling the transverse moving part and the longitudinal moving part below the wheelchair to stop moving by the controller; and S5, after completing gravity position adjusting or non-adjusting for one time, resetting data, and executing the steps S1 to S4 again. The invention further discloses a device for realizing the method. By means of the active safety control method and device of the intelligent wheelchair in the invention,rollover can be effectively prevented; and thus, the safety in the driving process is improved.

The invention relates to the technical field of wheelchairs, particularly provides a wheel-track combined stair climbing wheelchair, and aims at solving the problems that an existing wheel-track combined stair climbing wheelchair is slightly high in the whole gravity center and unsmooth in travelling when being used for going upstairs and downstairs by switching travelling modes through elevationof a track mechanism. Out of the purpose, the wheel-track combined stair climbing wheelchair comprises a rack, a seat, a track travelling mechanism, a plurality of travelling wheels and a synchronousswitching mechanism arranged on the rack, wherein the seat, the track travelling mechanism and the travelling wheels are arranged on the rack; the plurality of travelling wheels are connected with therack through the synchronous switching mechanism; and the synchronous switching mechanism is used for synchronously adjusting the height of the plurality of travelling wheels relative to the track travelling mechanism. Due to the arrangement, the center of gravity is lowered when the wheelchair moves upstairs and downstairs, the smoothness for moving upstairs and downstairs can be improved, and the risk of toppling over can be reduced.

A linear guide shaft type anti-swing suction cup movement mechanism comprises a rack in a cuboid vertical frame shape and a suction cup assembly used for adsorbing plates. The suction cup assembly is arranged in the rack. The linear guide shaft type anti-swing suction cup movement mechanism is characterized in that a Y-axis power assembly, an X-axis power assembly, a Z-axis power assembly and a P-axis rotation power assembly are further included; the Y-axis power assembly is used for providing power for movement, in the width direction of the rack, of the suction cup assembly in the rack; the X-axis power assembly is used for providing power for movement, in the length direction of the rack, of the suction cup assembly in the rack; the Z-axis power assembly is used for providing power for ascending and descending, in the height direction of the rack, of the suction cup assembly in the rack; the P-axis rotation power assembly is used for providing power for horizontal rotation of the suction cup assembly; and the running states of the Y-axis power assembly, the X-axis power assembly, the Z-axis power assembly, the P-axis rotation power assembly and the suction cup assembly are uniformly controlled by a control system. According to the linear guide shaft type anti-swing suction cup movement mechanism, the plates are stacked rapidly and orderly, the automation level and efficiency of stacking the plates are improved, and the storage space utilization rate of the plates is increased.

The invention discloses an intelligent wine cabinet with a remote temperature control function and a frost and mist removal function. The wine cabinet comprises a cabinet body and a wine rack. The cabinet body is provided with a left glass part, a right glass part, a rear glass part and a glass door on the front side of the cabinet body. The upper end of the cabinet body is provided with a temperature regulating system and a frost removal system. The front side of the upper end of the cabinet body is provided with a control panel. The control panel is electrically connected with a control circuit board. The glass door is provided with a monitoring device and an automatic alarm device. The automatic alarm device includes a detection module, a data receiving module and a data transmission module. The monitoring device and the data transmission module are both linked to a user terminal device through a WIFI module, and the WIFI module is connected to the control circuit board. In this way, the structural design is ingenious and reasonable, intelligentized control over the temperature and humidity of the wine cabinet is achieved, the performance of automatically removing frost and mistis achieved, the quality of wine is ensured, and remote monitoring of the wine cabinet by the user is achieved. The anti-theft performance is improved, the safety coefficient is high, and remote temperature control and removal of frost and mist can be achieved.

A screw-nut type anti-swing suction cup moving mechanism comprises a rack in the shape of a cuboid stereo frame and a suction cup assembly used for adsorbing plates. The suction cup assembly is arranged in the rack. The screw-nut type anti-swing suction cup moving mechanism is characterized in that the mechanism further comprises a Y-axis power assembly, an X-axis power assembly, a Z-axis power assembly and a P-axis rotation power assembly, wherein the Y-axis power assembly supplies power to enable the suction cup assembly to move in the rack in the width direction of the rack, the X-axis power assembly supplies power to enable the suction cup assembly to move in the rack in the length direction of the rack, the Z-axis power assembly supplies power to enable the suction cup assembly to go up and down in the rack in the height direction of the rack, and the P-axis rotation power assembly supplies power to enable the suction cup assembly to horizontally rotate; the operation states of the Y-axis power assembly, the X-axis power assembly, the Z-axis power assembly, the P-axis rotation power assembly and the suction cup assembly are uniformly controlled by a control system. According to the screw-nut type anti-swing suction cup moving mechanism, rapid and orderly stacking of the plates is achieved, the automation level and the efficiency of stacking of the plates are improved, and the storage space utilization rate of the plates is increased.

The invention discloses an underwater open caisson neighboring anchor pile positioning method and structure. The underwater open caisson neighboring anchor pile positioning method and structure is characterized in that a front anchor pile located on the upstream face of an open caisson and a rear anchor pile located on the downstream face of the open caisson are arranged in an open caisson landingarea to allow the sinking of the open caisson to be performed in an area formed by the front anchor pile and the rear anchor pile in an enclosed manner, the distance between the front anchor pile andthe open caisson is 30-100cm, and the distance between the rear anchor pile and the open caisson is 30-100cm. The underwater open caisson neighboring anchor pile positioning method and structure hasthe advantages that the underwater open caisson neighboring anchor pile positioning method and structure is clear in force transmission structure, short in force transmission distance and the like; compared with a traditional remote anchorage pier positioning system, the underwater open caisson neighboring anchor pile positioning method and structure can evidently reduce the scale of an open caisson positioning system and save implementation cost; due to the fact that the front anchor pile and the rear anchor pile are close to the open caisson, the open caisson can be forcibly constrained to move along the water flow direction, open caisson deviation can be inhibited effectively, open caisson inclination risks are lowered, and open caisson positioning precision and mounting quality are increased.

The invention relates to the technical field of underwater pipe pile foundations, in particular to a construction method of an underwater pipe pile type foundation and the underwater pipe pile type foundation. The construction method of the underwater tubular pile type foundation comprises the following steps that a construction interlayer is arranged on the side wall of a tubular pile body in the axial direction, a plurality of construction openings are formed in the side, away from an inner cavity of the tubular pile body, of the construction interlayer in the axial direction, and the construction openings are covered with plugging plates; the pipe pile body is hoisted and subjected to pile sinking at the pre-construction position, and the pipe pile body is subjected to pile sinking to the preset elevation; respectively arranging blasting devices at the plurality of construction openings along the construction interlayer, and detonating to form a plurality of soil cavities on the outer side of the pile; and cement paste is injected into the soil body cavity through the construction opening along the construction interlayer through high pressure, and construction is completed. The horizontal resistance of the soil body on the side of the pile and the vertical bearing capacity of a pile-soil interface can be effectively enhanced by firstly performing explosion impact on the soil body on the side periphery of the pipe pile body and then performing high-pressure grouting on the formed soil body cavity, and the risk that a pile foundation inclines towards one side is reduced.

The invention discloses a double-side grounding type online testing system and a double-side grounding type online testing method for switchgear, which relate to the technical field of power equipmenttests, and particularly to the double-side grounding type online testing system and the double-side grounding type online testing method for conducting comprehensive tests on switchgear of power transmission, transformation and distribution lines. The double-side grounding type online testing system comprises the tested switchgear and an action driver controlling the tested switchgear to switch on and switch off, and further comprises a host, a connecting cable, grounding wires and a current sensor, wherein the grounding wires connected with a wiring terminal on the same side of the tested switchgear are electrically connected with the same grounding welding pile, and the grounding welding pile is electrically connected with constant current source output ends in the host by means of theconnecting cables. The invention aims to provide the online testing system and testing method for improving the power failure test efficiency of the switchgear, optimizing the test flow and reducing the operational risk.

The invention discloses metal plate conveying control equipment for ship production and manufacturing. The metal plate conveying control equipment comprises limiting sliding clamping grooves, a supporting frame, a first limiting conveying mechanism, a second limiting conveying mechanism and a third limiting conveying mechanism. The limiting sliding clamping grooves are evenly formed in the upper end of the supporting frame. The first limiting conveying mechanism, the second limiting conveying mechanism and the third limiting conveying mechanism are fixedly connected through connecting plates. The first limiting conveying mechanism, the second limiting conveying mechanism and the third limiting conveying mechanism are arranged in the limiting sliding clamping grooves in a sliding manner. The first limiting conveying mechanism, the second limiting conveying mechanism and the third limiting conveying mechanism are the same in structural specification. In the using process, real-time synchronous adjusting and controlling can be conducted according to different thicknesses and different widths of metal plates, and accordingly the metal plates different in thickness and width can be stably conveyed.