592 results about "Knife switch" patented technology

The utility model relates to the technical field of circuit breaker control, in particular to a linkage type control mechanism applied to a primary and secondary deep fusion circuit breaker, which comprises a circuit breaker body. The circuit breaker body comprises a transverse circuit breaker box body, a first pole fixed at the upper end of the transverse circuit breaker box body, a control box body fixed at the front end of the transverse circuit breaker box body, and a second pole fixed on the inclined surface of the upper end of the control box body. According to the linkage type control mechanism applied to the primary and secondary deep fusion circuit breaker, the gap between the isolation disconnecting link and the control box body can be changed according to needs by adopting a gap adjustable structural design, so that the linkage type control mechanism is more diverse in application range, convenient to assemble and high in structural stability; the tension sensor is installed at the connecting end of the reset spring and the inner side wall of the control box body, tension of the reset spring at different positions can be monitored in real time, and therefore the control position of the isolation switch can be found in time.

The invention relates to the technical field of circuit breakers, in particular to an anti-burnout primary and secondary fusion sleeve column circuit breaker, which comprises a circuit breaker main body, three isolating knife switches, three contact elastic sheets, a rotary driving mechanism and a mounting framework, and is characterized in that when a front knife board is clamped on the two contact elastic sheets, the front knife board is clamped on the two contact elastic sheets; the two contact elastic pieces can be pushed inwards through the outward pushing mechanism, so that the two contact elastic pieces clamp the front cutting board, and the problem that the elastic force of the contact elastic pieces is lost due to long-term use is solved. When the front cutting board and the rear cutting board are bent due to the rust block, the front cutting board rotates, the front cutting board and the rust block of the contact elastic piece form a rotary cutting mode, the rust block is broken point by point in the mode, and resistance borne by the isolation cutting board when the isolation cutting board is lifted is reduced. And in addition, pulling friction can be generated in the rotary cutting mode, the rust blocks are prevented from being taken up wholly, and more gaps between the isolation cutter plate and the rust blocks are avoided.

The invention discloses medical absorbent cotton roll cutting equipment, and relates to the technical field of cutting, the medical absorbent cotton roll cutting equipment comprises a bottom table, a U-shaped groove plate is fixedly mounted on the top surface of the bottom table, two vertical frames are fixed on the right side of the top surface of the bottom table, the two vertical frames are located on the front surface and the back surface of the U-shaped groove plate, and arc-shaped groove openings are formed in the tops of the front surfaces of the two vertical frames; i-shaped rollers are rotatably mounted on the inner walls of arc groove openings of the two vertical frames, an L-shaped frame is fixed to the bottom face of the bottom table, a servo motor is fixedly mounted at the bottom end in the L-shaped frame, a round roller is fixed to the back face of a rotating shaft of the servo motor, and the round roller penetrates through and is rotatably mounted in front of and behind the inner wall of a U-shaped groove plate, and a cutting assembly is arranged on the left side of the top face of the bottom table. The cutting assembly comprises a U-shaped wide frame, and sliding grooves are formed in the front face and the back face of the U-shaped wide frame, so that the problem that the knife switch collides with a U-shaped groove plate, and consequently the knife switch is rolled and damaged is solved.

The utility model discloses a primary and secondary fusion high-voltage pole-mounted circuit breaker, which belongs to the technical field of circuit breakers, and is characterized in that a primary and secondary fusion assembly is mounted at the top of a fixing frame, a plurality of vacuum circuit breakers are mounted at the top of the primary and secondary fusion assembly, and a connecting rod assembly is mounted at the top of the fixing frame; a pull rod assembly is installed at the top of the installation plate and used for driving a connecting rod assembly, the pull rod assembly is installed at the operation end of the connecting rod assembly, two sliding blocks are fixed to the outer end of a movable pull rod, and a limiting groove is formed in a limiting block on the installation frame and used for limiting the sliding block on the movable pull rod. When the switch is switched on, the movable pull rod needs to be pulled upwards to enable the sliding block to be separated from the limiting groove, and then the movable pull rod can be rotated to drive the connecting rod assembly to switch on, so that switch-on caused by mistaken touch of workers can be prevented, and the safety is improved.

The invention provides a control method and a control device for a rail transit station-level operation terminal, and the method comprises the steps: responding to a key operation for a target button in a manual operation module, generating an operation instruction corresponding to the target button, and transmitting the operation instruction to a measurement and control device; the operation instruction is sent to the industrial personal computer module through the measurement and control device, and if the operation instruction passes verification, a grounding knife switch in a grounding device corresponding to the manual operation module is controlled to execute the operation instruction. In the mode, through the structural form that the measurement and control device is arranged on the station-level operation terminal, wall-mounted installation, wall-embedded installation and even installation in a screen cabinet can be met, the space of a station-level control room is saved, and the installation flexibility is improved; the measurement and control device can also display the position of the grounding knife switch and the communication state of the industrial personal computer and the grounding device. In addition, remote control operation of the grounding knife switch is realized through the manual operation module and the measurement and control device, hard wiring construction does not need to be carried out on the station-level operation terminal, and troubleshooting is facilitated.

The invention relates to the technical field of switch devices, and particularly discloses a vacuum parallel switch device and switch equipment. The vacuum parallel switch device comprises an isolation contact, a vacuum arc extinguishing mechanism, a transmission mechanism and an isolation disconnecting link. The transmission mechanism comprises a transmission assembly, a first elastic piece and a limiting piece, the limiting piece is arranged on the insulating shell, and the transmission assembly is connected with the moving contact. The isolation switch drives the transmission assembly to drive the moving contact and the static contact to be separated in the process of rotating in the first rotating direction, and after the moving contact and the static contact are separated, the transmission assembly achieves balance under the combined action of the first elastic piece and the limiting piece so that the moving contact and the static contact can be kept separated. When the isolation switch rotates along the second rotation direction, the transmission assembly is driven to drive the moving contact to be connected with the static contact, and before the moving contact is connected with the static contact, the isolation switch is connected with the isolation contact. The vacuum parallel switch device is good in opening and closing operation safety.

The present invention relates to the technical field of disconnectors, and discloses an electric operating device for a high-voltage disconnector, comprising a switch assembly, a support seat, a rotating rod rotatably connected in the support seat, a drive sleeve fixed at the end of the rotating rod, and a drive plate fixed on the surface of the drive sleeve; an operating assembly, arranged on one side of the drive plate, comprising a separation and combination member, a support shell arranged on one side of the drive plate, and a screw rod rotatably connected in the support shell. The beneficial effects of the present invention are as follows: 1. The first spring is compressed or stretched by the screw rod, and the drive plate is driven to move quickly by the spring reset elastic force, so as to realize the rapid separation and closing of the knife switch, reduce the generation of arc, reduce the wear of the contacts, and extend the service life of the equipment; 2. An emergency disconnect mechanism composed of a reset member and an electromagnet is provided. When a circuit fails, the electromagnet drives the limit release, and the tension of the seventh spring prompts the reset block to push the moving seat, quickly opening the knife switch, avoiding the expansion of the fault, and ensuring the safety of the power system.

The invention belongs to the technical field of hot-line work, and particularly discloses a complete insulation baffle plate for replacing a disconnecting link load side lead in 10kV hot-line work and a use method, the complete insulation baffle plate comprises a hanging plate, and the hanging plate is of an insulated plane plate-shaped structure; the upper side edge and the lower side edge of the hanging plate are provided with a cross arm hook and a baffle handle respectively. The cross arm hook is used for being matched with a cross arm; one side surface of the hanging plate is provided with a disconnecting link inner side insulating cover; the carrying head baffle is arranged on the side of the hanging plate; the head carrying baffle is bent to be of a C-shaped structure, a second notch is formed in the bottom of the head carrying baffle, the second notch is provided with a disconnecting link outer side insulation cover, and the disconnecting link outer side insulation cover is matched with the disconnecting link inner side insulation cover and used for being matched with a disconnecting link. The disconnecting link shield is bent to be of a U-shaped structure; and the opening end of the disconnecting link shield is matched and connected with the bottom of the carrying head baffle plate. According to the invention, the electrified body and the grounding body can be effectively isolated, the structural stability in the operation process is improved, and the operation time and manpower consumption are reduced.

The invention discloses a method for detecting the state of an earthing knife circuit breaker based on deep learning and a key point detection calculation technology, and relates to the field of power equipment detection, and the method comprises the steps: collecting a visible light image; performing data enhancement processing; building a deep learning model and improving the model; an improved EDC-YOLO model is introduced and a GeoKeyNet method for key point geometric feature calculation is combined, accurate state judgment can be carried out on obvious and easily-recognized key points on a grounding knife switch, and particularly under the condition that some grounding knives have small displacement, key point detection can effectively capture subtle changes, so that the opening and closing state of the grounding knife switch is accurately recognized, and the detection accuracy of the grounding knife switch is improved. The method not only makes up the limitation of traditional sensor monitoring, but also provides an efficient, accurate and automatic monitoring scheme especially under the condition that subtle changes cannot be fully captured and comprehensive monitoring cannot be achieved, and the monitoring precision and the working efficiency of the grounding knife-switch circuit breaker can be remarkably improved.

The invention provides a 35kV isolation switch opening and closing device. The 35kV isolation switch opening and closing device comprises a substrate, a contact unit, a transmission assembly and a driving unit. The substrate is provided with two composite post insulators which are arranged at an interval; the contact unit comprises a first connecting part and a second connecting part, the first connecting part is connected with one composite post insulator, and the second connecting part can be connected with the other composite post insulator; the transmission assembly is arranged in the vertical direction, and the top end is connected with the second connecting part. The driving unit is connected with the bottom end of the transmission assembly and used for driving the transmission assembly to move in the vertical direction, and the transmission assembly drives the second connecting part to move; wherein the driving unit drives the transmission assembly to move, and the transmission assembly drives the second connecting part to be in contact with or disconnected from the corresponding composite post insulator, so that switching-on or switching-off is realized. The invention provides a 35kV isolation knife switch opening and closing device, and aims to solve the problem of poor safety caused by manual close-range opening and closing of an isolation knife switch in the prior art.

The present invention relates to the field of new energy technology, and in particular to a pre-assembled distribution box device for a charging pile, including a distribution box, a knife switch, a plurality of air switches and a plurality of electric energy meters, wherein the knife switch is fixedly connected to the top of the inner cavity of the distribution box, a plurality of the air switches are installed from left to right in the inner cavity of the distribution box, the air switch is located at the bottom of the knife switch and is electrically connected, a plurality of the electric energy meters are installed from left to right in the inner cavity of the distribution box, the electric energy meters correspond to the air switches one by one and are electrically connected, and the electric energy meters record the power consumption of the charging pile, and also include a plurality of anti-oxidation mechanisms and a plurality of anti-tension mechanisms, a plurality of the anti-oxidation mechanisms are installed in the inner cavity of the distribution box from left to right, and the anti-oxidation mechanisms correspond to the electric energy meters one by one. The power cord of the charging pile is protected, economic losses are reduced, power supply is stable, vacuum absorption of the junction box is achieved, oxidation of the power cord connector is prevented, and the use time of the charging pile is extended.

The utility model discloses a high-voltage isolating switch device with a safety assembly, which belongs to the technical field of high-voltage isolating switches and comprises a shell, a first insulating column and a second insulating column are fixedly connected to the bottom of the inner wall of the shell, a first supporting plate is fixedly connected to the top of the first insulating column, and a second supporting plate is fixedly connected to the bottom of the second insulating column. Two fixing plates are fixedly connected to the top of the first supporting plate, bearings are fixedly connected to the side faces of the fixing plates, rotating rods are rotationally connected into the bearings, knobs are clamped to one ends of the rotating rods, knife switches are fixedly connected to the surfaces of the rotating rods, and a second supporting plate is fixedly connected to the top of the first insulating column. A contact plate is fixedly connected to the top of the second supporting plate, baffles are fixedly connected to the two sides of the contact plate, a rotary knob is screwed to drive a rotating rod to rotate, then a knife switch is driven to rotate, the purpose of controlling a power system switch can be achieved, and by arranging a screw and a cover plate, the purpose of facilitating device disassembly and maintenance can be achieved.

The present invention discloses a method for detecting the closed state of an isolating switch based on a preset position camera, which obtains the preset position information of the camera, and the preset position information includes the type of knife switch monitored by the camera and the target area; performs feature matching and comparison between the monitoring image of the camera and the preset position image to determine whether the monitoring image of the camera deviates; if there is a deviation, the camera angle is adjusted based on the preset position image; otherwise, it is determined whether there is a target knife switch to be detected in the preset position image; if there is a target knife switch, a corresponding detection model is selected according to the type of the target knife switch; the monitoring image is input into the selected detection model, and the detection model gives the status result of the current knife switch according to the monitoring image; it is determined whether the degree of overlap between the status result of the current knife switch and the preset target knife switch position is greater than a set value; if so, the knife switch status detected by the model is output. The present invention does not require the addition of new sensors, and has a stronger generalization capability based on the deep learning method, can cover various weather and light changes, and can solve the problems existing in the prior art.

The utility model discloses an outdoor power distribution cabinet emergency cut-off device which comprises a controller, a circuit breaker, a knife switch and a sensor assembly which are installed in a power distribution cabinet, the sensor assembly and the circuit breaker are electrically connected with the controller, the circuit breaker is electrically connected with the knife switch, and an automatic cut-off mechanism connected with a handle of the knife switch is further arranged in the power distribution cabinet. The environment in the cabinet is detected through the sensor assembly, circuit connection of the circuit breaker is closed in time through the controller when abnormity occurs, power supply of the power distribution cabinet is cut off emergently so as to avoid serious loss, meanwhile, when water enters the cabinet, a handle of the disconnecting link can be pushed upwards through the automatic cut-off mechanism, and therefore a circuit is cut off through strong twisting, and the safety of the power distribution cabinet is improved. The situation that equipment such as a circuit breaker and a controller in the cabinet fails and cannot be cut off emergently is avoided, and the safety risk of the outdoor power distribution cabinet in severe weather is greatly reduced.

The invention relates to the technical field of overheating power-off, in particular to a switch cabinet with overheating instant power-off protection and a protection method of the switch cabinet. The switch blade is rotationally arranged on the cabinet body; a static contact is fixedly arranged on the cabinet body; a temperature sensing mechanism and a heat dissipation mechanism are arranged on the cabinet body; the temperature sensing mechanism comprises a temperature sensing tank body; a first connecting rod is arranged on the temperature sensing tank body; the heat dissipation mechanism comprises a heat dissipation fan; a power-off mechanism is arranged on the knife switch; the power-off mechanism comprises a first telescopic column; the temperature sensing mechanism can drive the first connecting rod to be away from the temperature sensing tank body when the temperature in the cabinet body rises; in the process that the first connecting rod gets away, the heat dissipation mechanism is powered on; through the action of the cooling fan, the air circulation in the cabinet body is accelerated; when the first connecting rod is far away from the temperature sensing tank body to a set position, the power-off mechanism drives the first telescopic column to move so as to drive the knife switch to rotate, so that the knife switch is driven to be separated from the static contact; the switch cabinet is in a power-off state; therefore, components in the switch cabinet are prevented from being damaged due to over-high temperature.

The invention relates to the technical field of switch cabinets, in particular to a high-safety high-voltage switch cabinet and a using method thereof. The power-off part comprises an intelligent lock rotationally arranged on the opening and closing door, a protruding block is arranged at the end, arranged in the cabinet body, of the intelligent lock, a power plug board and an assembly frame located beside the power plug board are arranged on the side face, facing the interior of the cabinet body, of the closing plate, and a power plug-in connected with the power plug board is slidably arranged in the assembly frame. The power plug-in unit is further provided with a contact frame in contact fit with the protruding block, and the closing plate is further provided with a vertical plate located between the power plug board and the power plug-in unit. Through the arrangement of the power-off part, the connection or disconnection between the power supply plug-in and the power supply plugboard is controlled by remotely controlling the rotation of the intelligent lock, so that remote power-off operation is realized, the switch cabinet is ensured to be subjected to power-off treatment before maintenance, and the occurrence of personal electric shock accidents caused by misoperation such as electrified closing of a grounding knife switch is prevented; and the personal safety of workers is ensured.

The invention provides an unmanned aerial vehicle and one-key sequence control combined operation method based on a disconnecting link identification algorithm, and relates to the technical field of substation automation, the method comprises the following steps: a substation one-key sequence control host is used to receive a one-key sequence control operation instruction, and an intelligent anti-error host executes anti-error verification preview according to an operation order; knife switch image acquisition is carried out through a camera carried by the unmanned aerial vehicle; identifying the on-off state of the disconnecting link by using a disconnecting link identification algorithm; remote signaling data of the disconnecting link during the opening and closing operation are obtained in real time, state evaluation is carried out on the operation state of the disconnecting link during the opening and closing operation through a fusion set pair analysis method and an evidence theory method, and a state evaluation result is obtained; and performing bidirectional approval on the state of the disconnecting link, and executing a preset disconnecting link processing scheme according to an approval result. The intelligent level of the transformer substation is improved, and safe and stable operation of a power system is guaranteed.

The invention discloses a primary and secondary fusion pole-mounted circuit breaker and a use method thereof, and belongs to the technical field of circuit breakers, two handles are extruded to enable a sliding block to drive a clamping rod to be separated from a clamping groove so as to release the locking state between a moving contact and a static contact, a sliding column is supported through a first spring, the sliding column jacks up an isolation switch through a pin shaft, and the isolation switch is fixed through a second spring. When the isolating knife switch is not stressed, the moving contact and the static contact are always in a separated state, the isolating knife switch is prevented from deflecting to be in contact with the static contact due to external force, and when the isolating knife switch and the pillar insulation assembly are connected, the moving contact or the isolating knife switch is pressed down, and the moving contact is in close contact with the static contact, the static contact is in close contact with the pillar insulation assembly. The sliding block is supported through the elastic force of the second spring, so that the sliding block drives the clamping rod to be clamped into the clamping groove, the purpose of locking the static contact and the moving contact is achieved, the situation that the static contact and the moving contact are separated due to external force collision is prevented, and the working stability of the primary and secondary fusion pole-mounted circuit breaker is guaranteed.

The invention provides a grounding switch taking environment-friendly gas as an insulating medium. The grounding switch comprises a shell, and a transmission mechanism assembly, a grounding knife switch assembly, a moving side arc contact assembly and a static side arc contact assembly which are arranged in the shell, one end of the transmission mechanism assembly is connected with the output end of an external operating mechanism, the other end of the transmission mechanism assembly is connected with the grounding knife switch assembly, the transmission mechanism assembly is further connected with a grounding assembly, the moving side arc contact assembly is arranged at the action end of the grounding knife switch assembly, and the static side arc contact assembly is arranged on a bus side conductor. And the transmission mechanism assembly is controlled to act, and the grounding knife switch assembly drives the moving side arc contact assembly to do linear motion and to be in contact with or separated from the static side arc contact assembly, so that the grounding switch executes opening and closing. The circuit breaker has the advantages of being reasonable in structure, low in cost, reliable in action, stable in insulation performance and high in ablation resistance, and circuit opening and closing can be completed under an environment-friendly gas medium.

The invention relates to the technical field of knife gate valves, and discloses a bidirectional sealing two-piece type knife gate valve which comprises a butt joint assembly used for being in butt joint with a pipeline, a sealing assembly used for achieving a sealing effect is arranged at the upper end of the butt joint assembly, and a knife switch blocking mechanism used for blocking internal circulation and transmission of the butt joint assembly is longitudinally and movably arranged in the butt joint assembly. A driving mechanism drives a transmission shaft to rotate and transmit to a non-contact magnetic coupling transmission mechanism, a driving coupling sleeve rotates to form magnetic coupling, a transmission permanent magnet drives a transmission coupling shaft to rotate synchronously, and the power is transmitted to a transmission column in a cleaning assembly through a three-section universal joint, so that a scraper continuously cleans the surface of a positioning disc, and deposit accumulation is prevented; smooth opening and closing of the knife switch are guaranteed, the equipment operation period is remarkably prolonged, the maintenance frequency is reduced, the whole system integrates opening and closing, sealing and cleaning, power transmission is efficient, contact and abrasion are avoided, and the problems of deposition and attachment, opening and closing clamping stagnation, maintenance difficulty and the like of a traditional knife gate valve are effectively solved.

The invention discloses a three-contact manual ground wire ice-melting grounding knife-switch and a use method of the three-contact manual ground wire ice-melting grounding knife-switch. The grounding knife switch comprises a base, one end of the base is provided with a first post insulator, the upper end of the first post insulator is provided with a static contact, and the static contact is provided with a supporting seat; a first supporting frame is arranged at the other end of the base, a second supporting insulator is arranged on the first supporting frame, and a moving contact is arranged on the second supporting insulator; a second support frame is arranged at one end, close to the first support frame, of the base; a grounding contact is arranged on the second support frame; the supporting seat is rotatably connected with a contact knife, the contact knife is provided with a pull ring plate, and the other end of the contact knife is matched with a grounding contact or a moving contact. According to the invention, the switch-on of the ice-melting power supply is realized through the switch-on of the disconnecting link, the grounding of the insulated ground wire is realized through the switch-off of the disconnecting link, only one switching operation is needed, the electrical disconnection with the ice-melting ground wire side can be realized when the ice-melting power supply wire is connected or disconnected, an operator is prevented from bearing the induced voltage of the ground wire, the structure is simple, and the operation is convenient and safe.

The invention relates to the technical field of medium-voltage complete equipment, in particular to a load switch based on vacuum arc extinguishment, which comprises a disconnecting link assembly, a vacuum arc extinguish chamber and a vacuum arc extinguish chamber, and is characterized in that the disconnecting link assembly comprises a disconnecting link moving end and a disconnecting link static end, and the disconnecting link moving end is connected with or disconnected from the disconnecting link static end through driving of an external driving mechanism; the connection and disconnection of the disconnecting link moving end and the disconnecting link static end correspond to the connection and disconnection of a main loop; the vacuum arc-extinguishing chamber is electrically connected with the disconnecting link assembly in parallel; the vacuum arc-extinguishing chamber comprises a static contact and a moving contact, the static contact is connected with the static end of the disconnecting link, and the moving contact is connected with the transmission assembly. The disconnecting link assembly and the vacuum arc-extinguishing chamber are connected in parallel, so that current is transferred to a vacuum arc-extinguishing chamber branch at the initial opening stage, arc extinguishing is completed by utilizing the vacuum arc-extinguishing chamber, the situation that the disconnecting link directly breaks load current is avoided, and the vacuum arc-extinguishing chamber is driven to be opened after an enough safety gap is reached through the matching relation of the disconnecting link assembly and the transmission assembly. And electric arc reignition and breakdown risks caused by insufficient gaps are avoided.

The invention provides a low-voltage isolating switch with an adjustable wire inlet end, which comprises a seat body and a cover plate fixedly connected to the upper end of the seat body, the lower end of the cover plate is fixedly connected with a camera and a light supplementing lamp, a movable cavity is formed in the seat body, the inner wall of the movable cavity is connected with a knife holder and a wiring contact seat, the knife holder is rotatably connected with a power connection knife switch, and the power connection knife switch is rotatably connected with the wiring contact seat. The upper end of the wiring contact seat is fixedly connected with a knife switch clamping piece which is electrically contacted with the electric knife switch and limits the electric knife switch; images of metal wires can be shot through the camera, features in the images are analyzed through an image processing algorithm, so that the metal wires made of different materials are distinguished, after the metal wires are distinguished as aluminum wires, the driving mechanism can be controlled to drive the terminal base to rotate, and the copper-aluminum transition contact base is rotated and adjusted to the original position of the wiring contact base. And then the metal wire is directly inserted into the copper-aluminum transition contact seat and screwed tightly, so that the wiring work can be completed. By automatically identifying and classifying the metal wires, the wiring workload of wiring personnel is reduced, and the wiring efficiency is improved.

The utility model provides an opening and closing guide mechanism of an isolating switch. The opening and closing guide mechanism comprises a movable contact plate and a static contact plate, the movable contact plate is provided with a contact plate for locking the contact knife switch and the movable contact plate, the contact plate is fixed on the movable contact plate and is positioned on one side, back to the accommodating cavity, of the positioning rib, the contact knife switch is provided with a clamping groove for the contact plate to be clamped in, and two sides of the contact knife switch are provided with inclined plane guide ribs for guiding the contact plate to be clamped in the clamping groove. The contact plate is provided with a guide inclined plane attached to the inclined plane guide rib, and the guide mechanism can overcome the defect that in the prior art, due to the fact that the shapes of the first disconnecting link and the second disconnecting link are designed to be plane straight lines with the consistent upper and lower thicknesses, in the opening and closing process, the disconnecting links are prone to being dislocated, and consequently the disconnecting links are blocked.

The utility model discloses a long-life AC isolating switch, which belongs to the technical field of electrical control supporting equipment, and aims at the problems of potential safety hazards caused by lack of stable support for knife switches and difficulty in ensuring stable closing connections. The utility model comprises a base plate and an insulator, wherein the insulator is fixedly installed on the top of the base plate, a wiring terminal is installed on the top of the insulator, an insulating device wire clamp is connected to the outer side of the wiring terminal, a clamping mechanism is arranged on the left wiring terminal, a support plate is fixedly connected to the right wiring terminal, a hinge block is hingedly installed on the support plate, a support mechanism is arranged in the right wiring terminal and is connected to the knife switch; the utility model can support the knife switch at a certain height after opening by means of the support mechanism when the knife switch is opened, thereby avoiding adhesion at the connection mechanism, forming a reliable insulating gap, thereby ensuring the safety after opening, and improving the practicality of the device.

The utility model belongs to the technical field of high-voltage cabinets, aims to solve the problem that opening and closing of a circuit breaker are difficult to control automatically or manually in the prior art, and particularly relates to a coal preparation plant high-voltage cabinet operation robot which comprises a cabinet body. According to the utility model, the transmission gear is meshed with the toothed plate through forward rotation of the driving motor, the toothed plate moves downwards, so that the two sliding plates are driven to move downwards, and the sliding plates move downwards after being limited by the limiting plate, so that the pressing roller pushes the knife switch downwards, the circuit breaker is turned on, and the driving motor is controlled to rotate reversely; when the circuit breaker is turned on or off, the lower pressing roller pushes the knife switch upwards to turn off the circuit breaker, so that the circuit breaker is automatically turned on or turned off, the spline shaft is pulled to enable the side, away from the driving motor, of the spline shaft to move into the first spline sleeve, then the driven gear is rotated to control the toothed plate to move upwards or descend, and therefore the circuit breaker is turned on or turned off.

The invention relates to the technical field of disconnecting link maintenance and transformation, in particular to an isolation disconnecting link updating and transformation method. The method comprises the following steps: S1, performing inspection and quantitative analysis, performing equipment evaluation and problem diagnosis, and identifying operation problems and function deficiency; s2, performing model selection and material optimization, and setting a standard isolation switch and an electric operation assembly; s3, defining a transformation range, dividing transformation units based on the main wiring diagram, and covering the isolation disconnecting link and the grounding disconnecting link; s4, implementing a safety locking structure, adding an electrified locking and five-prevention system, and accessing whole plant management to prevent misoperation; and S5, accessing a monitoring system, and connecting an LCU screen and a computer monitoring system to realize remote centralized control. The contact resistance and temperature rise of the contact reach the standard, ablation is completely eradicated, the operating force and time are greatly reduced, jamming is returned to zero, the five-prevention locking success rate is extremely high, the misoperation drill can reach the zero penetration level, and the on-site actual effects of mechanical zero jamming, five-prevention zero penetration, remote control zero delay and old and waste utilization are achieved.

The application discloses a kind of on-load tap-changer monitoring devices, methods, equipment and storage medium, the device includes position sensor, current sensor and information acquisition processor, position sensor is set to the transmission assembly of on-load tap-changer, for detecting the action information of on-load tap-changer switching knife switch, current sensor is set to the power electronic component of on-load tap-changer and the loop of switching switch, for detecting the current information of the power electronic component, information acquisition processor is used to receive action information and current information, and action information and current information are exported.The on-load tap-changer monitoring device of the embodiment of the application can monitor the action information of switching knife switch and the current information of power electronic component in real time by installing position sensor on transmission assembly, setting current sensor in the loop of power electronic component and switching switch, installation position is reasonable, and it is convenient to monitor on-load tap-changer internal information.

The invention discloses a coal loading system and a loading method thereof, comprising a support platform, a cylinder and a hopper; the top of the support platform is movably connected with a guide roller mounting plate through a hinge rod; a plurality of guide rollers arranged along the forward direction of the coal are mounted on the inner side of the guide roller mounting plate; a belt is arranged above the guide roller; a knife gate is arranged above the belt to guide the coal into the hopper on the side of the guide roller mounting plate; there is a gap between the lower mouth of the knife gate and the upper end surface of the belt; the cylinder is mounted above the belt; the output end of the cylinder is connected to a linkage component; the linkage component has two output ends; one output end of the linkage component is connected to the knife gate and drives the knife gate to rise and fall; the other output end of the linkage component is connected to the guide roller mounting plate below the belt, and drives the hinge rod on the guide roller mounting plate to make an upward circular motion around the hinge point on the support plate; the invention reduces a lot of labor and improves loading efficiency.

The invention relates to the technical field of electrical switches, and discloses an operating mechanism of a strip-shaped disconnecting switch, which comprises a shell, a plurality of contacts are arranged in the shell, a push plate is slidably mounted in the shell, and a plurality of main knife switches are arranged on the push plate. A rotating shaft and a clamping piece are matched to compress a spring and enable a second supporting piece to rotate, meanwhile, movement of the rotating shaft can drive a pull plate to move so as to drive a push plate to conduct opening and closing, and when the rotating shaft swings towards the other side through a critical point of rotation of the second supporting piece, the compressed spring releases energy, and therefore opening and closing are conducted. When the opening and closing speed is increased, the distance between the contact and the main knife switch is increased more within the same time, so that the electric arc is lengthened quickly, the electric arc is extinguished more easily, and the arc extinguishing effect is improved.