11results about How to "Maintenance safety" patented technology

The present invention discloses a mechanical interlocking device for mutually locking a high-voltage switch circuit breaker and a grounding switch, comprising an operating lever assembly, a latch assembly, a grounding switch locking rod assembly, and a circuit breaker locking assembly; the grounding switch is locked by driving the grounding switch locking rod through the operating lever, while releasing the circuit breaker body interlock; the circuit breaker locking slider is pushed by the circuit breaker locking rod to lock the circuit breaker body interlocking lock tongue, while releasing the grounding switch operating hole sleeve interlock. To achieve mutual locking between the circuit breaker and the grounding switch. It meets the five-protection requirements of high-voltage switch equipment, is safer during operation and maintenance, can prevent personal injury and property loss caused by human errors and misoperation, and meets the operation and maintenance needs of the power system.

The utility model relates to a three-station isolating switch capable of intelligently adjusting grounding and closing synchronization, which comprises a three-station isolating switch and a controller, the three-station isolating switch is provided with a grounding beam, the grounding beam is respectively provided with a group of lifting type grounding contact assemblies corresponding to three-station isolating knife switches, each lifting type grounding contact assembly comprises an insulating fixed support, and the insulating fixed support is provided with a plurality of lifting type grounding contact assemblies. Lifting driving mechanisms are installed at the bottom of the insulating fixing support, the top output ends of the lifting driving mechanisms are connected with insulating parts, the tops of the insulating parts are connected with supporting shafts, grounding contacts are installed at the top ends of the supporting shafts, and all the lifting driving mechanisms are in signal connection with the controller. Displacement sensors are arranged on the rack of the three-position isolating switch corresponding to each group of lifting type grounding contact assemblies, the displacement sensors are used for detecting the height of the corresponding contacts, and all the displacement sensors are in signal connection with the controller; according to the utility model, the adjusting efficiency and precision are obviously improved, rapid and accurate adjustment of grounding closing synchronization is realized, the adjusting time is shortened, and the working efficiency is improved.

The utility model provides a closed jet type isolation fuse which comprises an isolation switch and a closed jet type fuse, the isolation switch comprises two post insulators and a conducting rod, the conducting rod is rotatably installed on a first connecting plate of one post insulator, and the conducting rod is rotatably installed on a second connecting plate of the other post insulator. A limiting structure for limiting the conducting rod at different opening angles is arranged between the conducting rod and the first connecting plate, and comprises a first through hole and a second through hole which are arranged at an interval along the width direction of the conducting rod and through which a bolt can pass; the limiting part is arranged on the first connecting plate, and when the bolt is installed in the first through hole, the bolt abuts against the limiting part when the conducting rod is opened; when the bolt is installed in the second through hole, the bolt abuts against the limiting part when the conducting rod is opened. Therefore, the installation positions of the bolts can be correspondingly selected according to different installation positions, obvious fractures are achieved, judgment of maintainers is facilitated, and maintenance is safer.

To provide a defect classification system being simple in preparation and maintenance and capable of recognizing a cause of a defect. The present invention provides a defect classification system 10 including imaging means 11 for causing an imaging device G to image paper P2 that has passed through a dry part D and acquiring image data obtained by the imaging, detection means 12 for detecting a defect in the paper P2 in the image data, extraction means 13 for extracting a feature amount of the defect, calculation means 14 for causing a classification model 20 in which a reference feature amount is previously set to calculate a certainty factor in a defect cause item on the basis of the feature amount of the defect, and display means 15 for displaying the certainty factor, in which the classification model 20 is caused to learn the reference feature amount using machine learning from a relationship between respective feature amounts of defects previously stored and a plurality of defect cause items.

The present invention provides a cable storage type photovoltaic module junction box, comprising a shell, a switch component, a cable storage component and a photovoltaic module connecting electrode component. Since no cables are reserved after the cables are connected, the junction box of the present invention makes the appearance of the power station neat and beautiful; since no cables are reserved outside after the photovoltaic modules are connected, the safety hazard of conventional cables is avoided, and the service life of the cables can be greatly improved; since the cables are well stored, there is no problem of plugs colliding with the module back plate during the module production and transportation process, and the problem of hidden cracks caused by the collision of the module is avoided; the junction box of the present invention has a shutdown function, which is safer and more convenient during the module maintenance process; the junction box of the present invention is universal for both positive and negative electrodes of the module; the junction box of the present invention has a cable storage function, and the cable is in the cable drum, and the cable can be pulled out according to the actual connection length.

This utility model provides a low-pressure rotor support for steam turbines with a buffer structure, belonging to the technical field of motor maintenance equipment. It includes: a base, a housing, lifting lugs, a rotating shaft, a rotating drum, a fixed base, a frame, shaft rollers, a winding drum, and a buffer belt. A housing is installed on the upper end of the base, with a placement groove along the upper edge of the housing and an open opening on the upper side of the housing. When the low-pressure rotor is placed on the support, the buffer belt laid on the surface of the rotating drum can contact the rotating shaft of the downward-placed low-pressure rotor. The rotation of the rotating drum provides buffering. Under the downward pressure of the low-pressure rotor's weight, the rotating shaft presses the buffer belt downward into the gap between the two sets of rotating drums, causing the buffer belt to wrap around the outer end of the low-pressure rotor's rotating shaft and engage with the placement groove in the housing. This not only increases the friction with the rotating shaft, making the low-pressure rotor more stable and less prone to rotating with the rotating drum during maintenance, thus making maintenance safer, but also allows the rotating bolts to contact the outer side of the shaft rollers, fixing the shaft rollers and consequently the winding drum.

The invention provides a 10kV cable terminal plug insulation fixing device which comprises a buckle plate body made of insulation materials, the buckle plate body comprises a plate I and a plate II which are of a detachable connection structure, and when the plate I and the plate II are buckled, at least one clamping position used for clamping a cable terminal plug is formed; the two ends of the buckle plate are respectively provided with a fixing structure used for fixing a buckle plate body. According to the cable terminal, the problems of cable bending, unstable fixation, thermal expansion or improper installation position easily occurring in the wiring process of the cable terminal can be solved.

This utility model relates to the field of power supply switches, specifically an electrically driven circuit breaker core module. It includes an insulating shell, a spring mechanism, a triggering assembly, a protection unit circuit module, a bracket, and a position adjustment mechanism. An input assembly and an output contact are disposed through the insulating shell. The input assembly includes an input contact and a vacuum tube connected to it, with a conductive busbar electrically connecting the vacuum tube and the output contact. The spring mechanism includes a bolt connected to the vacuum tube, a retaining ring at the end of the bolt, two sleeves fitted onto the bolt, and a spring fitted around the outer circumference of the bolt and connected at both ends to the sleeves. The triggering assembly triggers the opening or closing of the contacts inside the vacuum tube via the spring mechanism. This utility model enables control of the opening and closing states and allows for the detachment of the contacts from the connectors during maintenance, ensuring safe maintenance of the core module.

The present invention discloses a vehicle base structure for a suspended monorail train, which is characterized by comprising a general warehouse for parking train inspection, a general warehouse for maintenance, a suspended entry and exit track, a through-type garage wash room, a suspended first throat area structure, and a suspended second throat area structure; the present invention proposes a vehicle base structure and a process flow suitable for suspended monorail trains, which reduces the base area while meeting the demand for the full-life maintenance function of the suspended monorail; and in the general warehouse for maintenance, a wheel changing warehouse, a three-month inspection warehouse, and a common line warehouse (a static adjustment room and a vehicle disassembling / assembling room are common line) all adopt a one-line two-row structure, and are adjacent to the longitudinal column warehouse (a car body maintenance room and a bogie maintenance room are longitudinally integrated) and a component maintenance room in sequence in the horizontal direction, thereby reducing the number of tracks in the throat area, reducing the use of a large number of high-cost suspended monorail switches in the throat area, and reducing the vehicle base cost.

The utility model relates to the field of cable bridges, in particular to a ladder-type multi-specification cable common bridge structure, and aims to solve the technical problems that according to an existing equal-capacity multi-cabin cable bridge, cabin structure division is single, and cables of different specifications are difficult to place in proper accommodating spaces; according to the technical scheme, the ladder type multi-specification cable common bridge structure comprises a bridge body, a supporting plate, a fixed side plate, a top plate, a layer plate, a movable side plate, a supporting plate, a cable fixing structure and an assembly connecting piece; according to the utility model, the detachable stepped sub-bin structure is arranged in the traditional single-bin type bridge body, and the single bin of the bridge is reasonably divided into a multi-bin structure suitable for laying cables with different voltage class specifications, so that the situation of capacity redundancy or insufficient capacity of each bin is reduced, and the problem that the existing equal-capacity multi-bin cable bridge is inconvenient to use is solved. The problem that cables of different specifications are difficult to place in appropriate accommodating spaces due to the fact that the structure of a chamber is divided singly is solved.

The application discloses an edge sealing device for an internal floating roof tank with an air bag, which comprises a tank, a floating roof, an edge plate, an air bag, a pressure sensor and a processor. The tank is internally provided with the floating roof, the outer side of the floating roof is provided with the edge plate, the edge plate and the inner wall of the tank are provided with the air bag, the inner wall of the air bag is provided with the pressure sensor and the processor, the pressure sensor and the processor are electrically connected, and the processor is in wireless communication with a user terminal. The pressure sensor can monitor the pressure in the air bag, transmit pressure data to the user terminal, and remind workers to take timely measures when the pressure data in the air bag exceeds the normal range, so that the pressure in the air bag is within a safe range, and safety accidents are avoided.