21results 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 invention discloses a heat storage incineration device and a heat storage incineration device valve switching method. Belongs to the field of waste gas treatment equipment. The heat storage incineration device comprises a valve group box body, the valve group box body is provided with a plurality of connecting ports corresponding to the heat storage chambers, the heat storage chambers are internally provided with channels which are through from inside to outside, and the channels are provided with valves; a valve seat is arranged on the partition plate, a lifting valve assembly is arranged on the valve seat, and an air cylinder of the lifting valve assembly drives a valve plate to move up and down so as to switch gas in a cavity in the valve bank box body; according to the heat storage incineration device, the gas flowing path can be effectively divided, switching of gas in the first valve bank box body and the second valve bank box body is achieved, the gas flowing efficiency is improved, and the stability and high efficiency of the incineration process are ensured.

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 present invention proposes a pitless elevator, which relates to the technical field of elevator equipment. The present invention adopts a technical solution including a car body and a buffer structure, wherein a first main beam is obliquely arranged at the bottom of the car body, and impact structures are also arranged on both outer side walls of the car, the impact structures are connected to both ends of the first main beam, and the buffer structure is installed on the base of the elevator shaft. The impact structure and the buffer structure are arranged correspondingly, which has the beneficial effects of easy installation, small space occupation and relatively safe maintenance.

The utility model discloses an arc-shaped color steel roof photovoltaic project maintenance channel support, which relates to the technical field of photovoltaic power generation and comprises a support frame, two end parts of the support frame are fixedly connected with connecting seats at certain angles, the bottoms of the connecting seats are fixedly connected with fixing seats, a grating plate is laid on the top surface of the support frame, and the grating plate is fixedly connected with the fixing seats. Supporting angle steel is symmetrically installed on the top face of the supporting frame. The problems that an existing overhaul channel support is of a horizontal structure, the installation requirement of the roof gradient cannot be met, and maintainers are high in danger when walking, running and maintaining are solved.

The present invention discloses a high- and low-voltage switch cabinet with good safety performance, which relates to the technical field of switch cabinets, including a cabinet body, both sides of which are connected with exhaust plates, and the inner cavity of the cabinet body is provided with multiple groups of pads, and the ends of the pads are provided with adjustment components, and the electrical components are limited by the adjustment components; the high- and low-voltage switch cabinet with good safety performance, when placing the electrical components inside the sleeve, by adjusting the position of the guide rod, in conjunction with the slide groove opened on one side thereof, synchronously drives the movable rod slidably installed inside the slide groove to move, and because the upper end of the movable rod is connected to the moving block, when the movable rod moves, the movable block is synchronously driven to move and move closer to the middle position of the sleeve, so as to clamp the outer surface of the electrical component installation part, and ensure the stability of the overall electrical component. At the same time, sufficient space is reserved for daily maintenance and overhaul of the equipment, so that technicians can safely and conveniently operate and repair.

The utility model relates to the technical field of lighting equipment, in particular to a battery car charging shed lighting system. Comprising a supporting plate, a plurality of supporting frames are fixed to the top of the supporting plate, fixing shells are fixed to the tops of the multiple supporting frames, lighting mechanisms are installed at the positions, located between every two adjacent supporting frames, of the bottoms of the fixing shells, and each lighting mechanism comprises a protective shell, an assembling shell, a connecting plate, an LED lighting lamp and a synchronous plate; the fixing plate is slidably connected with the fixing shell, and the two sides of the bottom of the assembling shell are slidably connected with connecting plates. According to the lighting system of the battery car charging shed, through cooperation of the supporting plate, the supporting frame, the fixing shell, the lighting mechanism and the positioning mechanism, the lighting mechanism can be integrally taken down or a protection shell can be independently taken down during replacement, and therefore safer operation can be achieved during replacement and overhauling; and potential safety hazards caused by high-altitude operation or head-raising operation are prevented.

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.

The utility model discloses a power distribution cabinet with temperature monitoring and wireless early warning functions, and relates to the technical field of power distribution cabinets. Comprising a power distribution cabinet, a driving mechanism, a sensor module, a main power supply, a controller, a first pull-in module, a second pull-in module and a third pull-in module, the power distribution cabinet comprises a power distribution cabinet shell and a cabinet door which are connected through hinges, and a power distribution cabinet main body arranged in the power distribution cabinet shell, and a cabinet door switch is arranged on the cabinet door; the first pull-in module is in signal connection with a main power supply, the second pull-in module is in signal connection with the driving mechanism, the driving mechanism is matched with the power distribution cabinet main body, and the third pull-in module is in signal connection with the cabinet door switch. According to the utility model, when the temperature rises too high or even fire occurs, data such as harmful gas, smoke and temperature in the power distribution cabinet can be acquired in real time and prompted, the power distribution cabinet main body is pushed out through the electric telescopic rod, poisoning, burning and electric shock caused by manual pulling of an operator are avoided, and the power distribution cabinet is safe and reliable. High temperature in the power distribution cabinet can be treated safely and timely.

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.

The invention relates to the technical field of centrifugal pump overhauling, in particular to a device and method for overhauling a middle-open type horizontal centrifugal water pump. The device comprises a middle-open type water pump, a water inlet pipe is arranged at one end of the middle-open type water pump, a water outlet pipe is arranged at the other end of the middle-open type water pump, an inlet water valve is installed on the water inlet pipe, and an outlet water valve is installed on the water outlet pipe; a short pipe is fixedly welded on the water outlet pipe, and a liquid level meter and a head retaining valve are mounted on the short pipe; compared with the prior art, by additionally arranging the short pipe with the head valve and the liquid level meter at the front end of the outlet water valve of the water outlet pipe on the middle-open type water pump and arranging the drainage pipe, the large-flow water pump and the discharge pipe at the rear end of the short pipe, good flow regulation and pressure relief maintenance can be carried out on high-pressure water in the middle-open type water pump; the maintenance of the middle-open type water pump can be safely carried out, the situation that maintenance cannot be carried out due to inner leakage of a water pump valve is avoided, and stable operation of a production device is guaranteed.

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 utility model provides a closed slurry pump belt protective cover, which relates to the technical field of slurry pump equipment, and comprises a first main body and a second main body which are asymmetrically arranged, the first main body and the second main body are spliced to form a closed cavity, and the closed cavity is sleeved on the outer side of a slurry pump belt from a splicing seam; the closed cavity is fixedly arranged on the slurry pump mounting surface from the bottom of the closed cavity, a plurality of receding notches are formed in the closed cavity from the splicing seam of the closed cavity, and the receding notches are used for receding mounting of an equipment shaft and a motor shaft of the slurry pump; the protective cover is quickly disassembled and assembled through splicing of the two opening structures and avoidance of the avoidance notch, the structural stability of the belt protective cover is guaranteed, the cover body assembling operation is reduced, and meanwhile the monitoring and maintenance safety of field personnel is guaranteed.

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 provides an anti-falling angle steel tower, which belongs to the technical field of electric power facilities and comprises a base, a tower foot, a tower body, a cross arm, a protective platform, a support frame, a slide rail, a fixed seat, a support foot, a support seat, a screw rod, a nut, a rotating shaft, a rotating table, a cross rod and a safety rope fixed seat. The supporting bases and the nuts at the upper end and the lower end of the screw can be clamped at the upper end and the lower end of the sliding rail, the fixing base can transversely move on the sliding rail through the supporting feet and the supporting bases in a fixed state, and the safety rope fixing base can transversely move on the sliding rail through the fixing base. According to the invention, a maintainer can directly, stably and transversely move around the cross arm and can move from one side of the tower body to the other side of the tower body, so that the binding position of the safety rope does not need to be frequently changed during maintenance, the safety rope is protected all the time during transfer operation, the risk of falling is effectively reduced, and the maintenance is safer.

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 present invention discloses a vehicle base structure of a car transfer platform for a suspended monorail train, which is characterized by comprising a general warehouse for parking train inspection (1), a general warehouse for maintenance (2), a suspended entry and exit track (3), a through-type car wash room (4), a suspended throat area structure (5), a suspended single crossover track (6), and a whole-train car transfer platform (7); the present invention proposes a vehicle base structure and a process flow for a car transfer platform suitable for a suspended monorail train, and while meeting the requirements of the full-life maintenance function of the suspended monorail, a car transfer platform and a suspended single crossover track are adopted in front of the maintenance warehouse, that is, the whole train of vehicles passing through the car transfer platform is laterally moved to enter the static adjustment warehouse, the three-month inspection warehouse, the wheel changing warehouse and the comprehensive / key maintenance warehouse respectively, thereby reducing the use of a large number of high-cost suspended monorail switches in the throat area and reducing the vehicle base cost.

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.