60results about "Switchgear shutters/guards" patented technology

This invention provides a driving device for a centrally located switchgear valve baffle, comprising an actuating mechanism, an active mechanism, a transmission mechanism, and a guiding mechanism. The actuating mechanism is located on the lower front side of the switchgear truck for the operator to apply force to drive the switchgear truck into the trolley compartment. The active mechanism is located on the left and right rear sides of the switchgear truck for applying force to the transmission mechanism during the movement of the switchgear truck into the trolley compartment. The transmission mechanism includes an upper transmission mechanism and a lower transmission mechanism located on the left and right side plates of the trolley compartment. The upper and lower transmission mechanisms are adapted to drive the upper and lower valve baffles respectively to open under the force applied by the active mechanism, thereby exposing the high-voltage stationary contacts. The guiding mechanism is located on the rear side plate of the trolley compartment for vertically guiding the movement of the upper and lower valve baffles. This application features a clever and simple structural design that can simultaneously drive both sides of the valve baffle, making the opening and closing action of the valve baffle more flexible, stable, and reliable, effectively avoiding valve baffle jamming.

The invention discloses a high-voltage metal-enclosed switchgear which comprises a cabinet body made of metal plates, the interior of the cabinet body is divided into a bus chamber for placing buses, a circuit breaker chamber for placing circuit breakers and a cable chamber for placing cables from top to bottom, and a vertical public pressure relief channel is arranged on the right side of the cabinet body. The center line of each corresponding upper contact box and the center line of each corresponding lower contact box are located on the same vertical axis, an upper contact arm and a lower contact arm of the circuit breaker are also located on the vertical axis and stretch out and draw back up and down, and the upper contact arm and the lower contact arm penetrate through the upper valve and the lower valve respectively. And the upper static contact and the lower static contact are respectively connected to form a conductive loop. According to the invention, the size is greatly reduced, the manufacturing cost is reduced, the current-carrying capability is improved, the discharge of the contact arm to the ground and air is effectively prevented, and the safety is better ensured.

A handcart type high-voltage switch cabinet disclosed by the present invention comprises a cabinet body, a driving assembly and a baffle plate, the cabinet body is fixedly provided with a guide rod, the guide rod is sleeved with a lifting shell, the lifting shell is slidably provided with a sliding plate, and the baffle plate is connected with the sliding plate; a rotating pin is rotationally arranged on the lifting shell, a spiral groove is formed in the rotating pin, a protruding block is fixedly arranged on the sliding plate, and the protruding block is arranged in the spiral groove in a sliding mode; by arranging a rotating pin, before a baffle slides upwards, a connecting shaft slides in a connecting hole, the rotating pin is driven to rotate through a rotating pipe and a rotating ring, a sliding plate drives the baffle to slide towards the outer side through cooperation of a spiral groove and a protruding block, the baffle is separated from a shielding position, friction between the baffle and the cabinet body in the sliding process is avoided, and the cabinet body is protected from being damaged. And then the connecting shaft abuts against the top of the connecting hole, the lifting shell and the baffle are driven to move upwards, the static contact is exposed, a moving contact on the circuit breaker can be conveniently connected with the static contact in an inserted mode, and operation portability is improved.

A hinge-protected main circuit connector for unit compartment incoming lines, and a unit assembly. The main circuit connector comprises: an insulating housing, the front end of which is provided with a front socket; and a hinge protection structure, which is mounted at the front end of the insulating housing and closes the front socket. When a copper bar of a unit main circuit moving connector is inserted into hinges, the hinges are driven to open; and when the unit main circuit moving connector is withdrawn, the hinges automatically close. The hinge-protected main circuit connector for unit compartment incoming lines is applied to an incoming line side of a unit compartment, thereby enabling the protection level of the unit compartment incoming lines to be improved.

The invention discloses a high-voltage switch cabinet convenient for handcart maintenance, which belongs to the technical field of switch cabinets and comprises a switch cabinet body, a movable handcart is arranged in a handcart chamber in the switch cabinet body, a static contact is fixed on the inner wall of the handcart chamber, and a moving contact is arranged on the handcart at a position corresponding to the static contact; the closing driving unit is arranged in the handcart chamber in a sliding manner; the polishing unit is rotationally mounted in the handcart chamber and is in sliding connection with the moving contact; and the rotating unit is rotationally connected to the end part of the polishing unit and rotationally connected with the surface of the static contact. By arranging the polishing unit and the rotating unit, the moving contact and the static contact can be automatically polished and cleaned in the switching-on process of the handcart, oxide layers and impurities on the surfaces of the contacts are removed, contact resistance is reduced, contact heating faults are reduced, and the service life of a switch cabinet is prolonged; by arranging the buffer unit, the rigid collision between the moving contact and the static contact can be avoided, the stability of the contact pressure of the contacts is maintained, and the reliability of circuit conduction is improved.

The invention discloses a valve structure of a handcart-type circuit breaker, and the structure comprises a fixed part which is provided with a plurality of through holes; the movable part is linked with the circuit breaker handcart; the plurality of through holes and the movable parts are arranged in two groups, and the two groups of movable parts are arranged in an upper layer and a lower layer; the forward or reverse movement of the circuit breaker handcart is converted into the movement of the two groups of moving parts through the linkage assembly, and the two groups of moving parts correspondingly open or close the through hole so as to expose or shield the circuit breaker static contact in the cavity shell. The invention also discloses a handcart type circuit breaker. According to the handcart type circuit breaker and the valve structure thereof, it is ensured that the movable part and the circuit breaker handcart can move synchronously, the through holes are accurately opened and closed, and an electric shock accident caused by mistakenly touching a static contact by a person is prevented; the structure is simple and reliable, and long-term stable operation of equipment can be ensured.

The utility model relates to the technical field of complete switch equipment, in particular to a hinge protection type main circuit connector for incoming lines of a unit chamber, which comprises an insulating shell, a main circuit board, a main circuit board and a main circuit board, and is characterized in that the front end of the insulating shell is provided with a front socket; and the hinge protection structure is arranged at the front end of the insulating shell and seals the front jack. When the unit pushes the copper bar of the unit main circuit movable plug-in to be inserted into the hinge, the hinge is driven to be opened, the unit main circuit movable plug-in is withdrawn, and the hinge is automatically closed. According to the hinge protection type main circuit connector for the incoming line of the unit room, the inter-phase center of the connector corresponds to the inter-phase center of the unit main circuit movable plug-in and the circuit breaker, a main circuit is not in lap joint connection, the structure of the circuit breaker is not changed, and the problems of application feasibility and universality are solved; the hinge protection type main circuit connector for the incoming line of the unit room is applied to the incoming line side of the unit room, so that the protection grade IP40 of the incoming line of the unit room reaches the high standard.

Locking device (100) for a switchgear compartment (599) with a circuit breaker (999), wherein the locking device (100) comprises a main locking lever (200) which can be in at least one locking position and in a trip prevention position, characterized in that the main locking lever (200) comprises at least two legs (210; 220), wherein the first leg (210) in the locking position blocks the transition of the locking device (100) to the trip prevention position if the circuit breaker (999) is in the OFF position, and wherein the second leg (220) in the switch-off prevention position blocks the transition of the circuit breaker (999) to the OFF position.

Switchgear (1) comprising a first compartment (200) accommodating a drawer-type VMC (5) with a vacuum contactor (55) and a power fuse (12), and a second compartment (300, 400) accommodating a main circuit (30, 40), the switchgear (1) being adapted to perform a connection / disconnection between the vacuum contactor (55) and the main circuit (30, 40) by a pulling operation, the switchgear (1) comprising: a fixing frame (4) separating the first compartment (200) and the second compartment (300, 400) from each other and having two bushings (9a, 9b) arranged in a perpendicular direction with respect to a pulling direction of the vacuum contactor (55) for connecting terminals (51, 52) of the vacuum contactor (55) and terminals (7a, 8a) of the main circuit (30, 40); and Closing means (10a, 10b) for closing the two passages (9a, 9b) at a time of separation, wherein one end of the power fuse (12) is located between the two bushings (9a, 9b) in a position ensuring insulation from the closed closure devices (10a, 10b) in a separated state, and another end of the power fuse (12) is located above the vacuum contactor (55), so that the power fuse (12) is mounted so that its longitudinal direction has predetermined angles with respect to the pulling direction and the vertical direction.

The present discussion relates to a bus bar for preventing unintentional contact. One example includes an immersion tank and a protected automated busbar assembly located in the immersion tank. A protected automatic busbar assembly may include a conductor and a deployable protector biased on the conductor. An example may include a computer including a device controller and an electrical connector. The device controller may be configured to overcome the bias voltage and transition the deployable protector away from the conductor to allow the conductor to be engaged by the electrical connector to couple the computer to the conductor of the protected automatic busbar assembly.

The utility model discloses a door interlocking device which comprises an interlocking rod, one end of the interlocking rod is provided with a hook portion used for locking the closing state of a handcart chamber door, and the handcart chamber door is provided with an interlocking bolt used for being connected with the hook portion in a clamped mode. The other end of the interlocking rod is arranged to be a transmission end used for being connected with a valve mechanism in a handcart chamber in a transmission mode, and an interlocking axis used for being fixedly connected with the handcart chamber is arranged in the middle of the interlocking rod in a hinged mode. According to the utility model, a linkage structure of the interlocking rod and the valve mechanism is arranged, when the handcart chamber door is operated to be closed to enable the handcart to be rocked into a working position, the handcart chamber door is synchronously locked through the interlocking rod, so that an operator cannot open the handcart chamber door without additional active locking operation of the operator, and the electrical five-prevention requirement is met.

A locking mechanism (20) for a control center (100) comprises a locking cover (8) attached to a partition plate (7) that separates a busbar chamber (5) from a functional unit chamber (4) in which a functional unit (1) to be mounted is arranged for the control center.The closure cover (8) has a front projection (9) on its base, which projects forward in a forward direction, wherein the functional unit (1) has a spacer (11) on its base surface and, when the functional unit (1) is inserted into the functional unit chamber (4), the front projection (9) of the closure cover (8) is pressed by the spacer (11) provided on the functional unit (1) such that the closure cover (8) moves in a latching manner to open simultaneously with the insertion of the functional unit, thereby enabling a connection between the busbar (6) and a terminal (2) of the functional unit (1).

The present invention relates to the technical field of valve structures, and discloses a switch cabinet and a valve locking device, comprising a valve structure and a locking structure. The valve structure comprises a valve body that is longitudinally movably assembled on the switch cabinet. The locking structure comprises a locking plate that is movably assembled in the switch cabinet, a transmission shaft that is transmission-connected to the locking plate, and a driving handle that drives the transmission shaft. The valve body is provided with a bayonet, and the locking plate is provided with a buckle that engages with the bayonet. During its movement, the locking plate has a locking position in which the buckle engages with the bayonet to lock the valve body and an unlocking position in which the buckle disengages from the bayonet to unlock the valve body. An operator drives the transmission shaft to move in the switch cabinet through the driving handle, and the transmission shaft drives the locking plate to move in the switch cabinet. The buckle of the locking plate engages with the buckle on the valve body, thereby locking the valve body and locking the position of the valve body. This ensures the stability of the valve in its working state and prevents sliding or falling off, thereby improving the reliability of the valve and the switch cabinet.

The utility model provides a drawer type switch cabinet protection device which is applied to a drawer type switch cabinet, a top plate of the drawer type switch cabinet is provided with an opening, and the protection device comprises a cover plate, a telescopic mechanism, a flexible pipe, a sensor and a controller; the cover plate is positioned above the opening; the outer contour of the cover plate is larger than the aperture of the opening; one end of the telescopic mechanism telescopic assembly is connected with the cover plate, and the other end is connected with the top plate; the flexible pipe is arranged between the cover plate and the top plate and is buckled in the opening; a plurality of through holes are formed in the side wall of the flexible pipe; the sensor is used for detecting whether a target exists around the top plate; and the controller is electrically connected with the telescopic mechanism and the sensor. According to the scheme, the flexible pipe with the cover opened with the hole is arranged, and the through hole is formed in the flexible pipe, so that when the sensor detects that a target object exists around the top plate, the flexible pipe can be driven to contract through the telescopic mechanism, the actual hole diameter of the through hole is reduced, and the target object is prevented from entering the drawer type switch cabinet. Therefore, the working reliability of the drawer type switch cabinet can be improved.

A protective barrier system is provided to control access to conductors of a bus system of a distribution board. The system includes an electrically insulating or non-conductive barrier for preventing access to conductors of the bus system. The barrier may include a plurality of removable baffles arranged side-by-side on the open side of the bus system to prevent installation of circuit breakers on conductors of the bus system and provide touch / finger safety protection. The system also includes a barrier interlock for the bus system. The barrier interlock may include a lock for the shutter. The lock is operable between a locked position and an unlocked position. The lock locks the shutter in the locked position to prevent the shutter from being removed, or unlocks or releases the shutter in the unlocked position, thereby enabling removal of the shutter and connection of the circuit breaker to the conductor of the bus system.

The utility model belongs to the technical field of switch cabinets, and discloses a fuse handcart and a switch cabinet. The fuse handcart comprises a box body, wherein a first insulator, a lightning arrester, a second insulator and a discharge counter are sequentially arranged on the box body from top to bottom at intervals; the first insulator is provided with a first contact arm, the second insulator is provided with a second contact arm, a fuse is arranged between the first contact arm and the second contact arm, one end of the lightning arrester is connected with the first contact arm, and the other end of the lightning arrester is conductively connected with the discharge counter. When the fuse handcart is designed, the first insulator and the second insulator are arranged at intervals and installed at corresponding positions of the box body, the lightning arrester is installed between the first insulator and the second insulator, and the discharge counter is arranged at a position, close to the bottom, of the box body. According to the fuse handcart, the mode that a box body is directly heightened at the top and a lightning arrester and a discharge counter are arranged at the top in the prior art is replaced, the overall fuse handcart box body is prevented from being too high, the structure is simple, arrangement is compact, and cost can be effectively reduced.

The invention relates to the technical field of circuit breaker auxiliary tools, in particular to a robot switch cabinet circuit breaker quick assembly and disassembly torque protection tool which comprises a rotation stopping base and a rotation stopping plate used for being installed on a cabinet body. The rear end of the torque limiting mechanism is rotatably connected with a tool sleeve, the tool sleeve is composed of a front section, a middle section and a rear section, threads are arranged on the inner circumferential face and the outer circumferential face of the front end of the front section of the tool sleeve, a square hole is formed in the rear end of the rear section of the tool sleeve, and the rear end of the tool sleeve is provided with a quick release mechanism used for being quickly connected with a circuit breaker. The front side of the rotation stopping seat is provided with a rotation stopping mechanism used for limiting the working state of the tool, and the torque limiting mechanism is arranged to limit the transmission torque value of the tool by controlling the friction force, so as to meet the requirements of higher operation speed and load change in the operation process of the handcart. And the problem of operation failure caused by torque control failure of the robot is further avoided.

A reinforced drawer one-time static plug-in comprises a plug-in body, a copper bar, a metal plate support, a limiting piece and a sleeve. According to the utility model, the limiting piece fixedly connected to the metal plate bracket is arranged, and the copper bar is matched with the sleeve on the limiting piece, so that the circumferential pulling resistance of the copper bar is improved; therefore, after the cable is connected, when the cable is circumferentially pulled under the action of self weight or external force, the sleeve can prevent the copper bar from being deformed, and the phenomenon of poor contact is further prevented.

The invention provides a multi-modular switch cabinet which comprises a switch cabinet body and a handcart, the handcart is used for being connected with a bus contact in the switch cabinet body, the switch cabinet body is provided with an upper valve and a lower valve which are used for shielding the bus contact when the handcart exits, and the multi-modular switch cabinet further comprises a valve opening and closing assembly. The valve opening and closing assembly comprises a first rotating arm and a second rotating arm which are rotatably arranged on the switch cabinet body, the first rotating arm and the second rotating arm drive the upper valve and the lower valve to be opened and closed, and the bus contact can be shielded when the upper valve and the lower valve are in the closed position. First limiting parts are arranged on the first rotating arm and the second rotating arm; and the self-locking module is connected with the switch cabinet body, the self-locking module comprises a second limiting part, and the second limiting part is used for being matched with the first limiting part to lock the first rotating arm and the second rotating arm at the closing position. By means of the technical scheme, the technical problem that mistaken touch is likely to happen in the related technology is solved.

The invention relates to a vertical channel structure of a low-voltage drawer cabinet, and belongs to the technical field of electrical equipment. According to the structure, a function plate is arranged on the face, facing the interior of the cabinet, of a vertical row set, splicing modules for isolating adjacent vertical rows are fixed between a vertical row cover plate and the function plate, and the vertical row cover plate, the function plate and the splicing modules are combined to form an isolation body for isolating the periphery of each vertical row. At least two groups of isolators which are vertically arranged are fixed on the vertical row, the length of the isolator group is matched with the length of the vertical row, a bottom sealing plate is arranged on the bottom surface of the isolator at the bottom of the vertical row, and the bottom sealing plate is fixedly connected with a bottom support between side plates of the vertical row; and the vertical row side plate is provided with a reinforcing support for limiting the displacement of the vertical row cover plate. According to the invention, complete isolation between phases of the vertical copper bars is realized through a specific structural form, and a heat dissipation channel is reserved, so that the temperature rise of the vertical copper bars is controlled within an allowable range, thereby improving the reliability and safety of the use of the drawer cabinet.

The present disclosure relates to a shutter assembly and a switchboard comprising same, and provides a shutter assembly comprising: a shutter plate arranged to cover an outer terminal arranged on the rear surface of a switchboard case; and a shutter driving unit which is connected to one side of the shutter plate and which moves the shutter plate in the left and right directions, wherein the shutter driving unit has at least a portion pressed and rotated by means of a circuit breaker according to the entry of the circuit breaker into the switchboard case, so that the outer terminal covered by the shutter plate is exposed toward the inside of the switchboard, and thus the shutter plate is moved.

The invention provides a rapid guiding and positioning assembly and a circuit breaker, and relates to the technical field of electrical equipment. The rapid guiding and positioning assembly comprises a mounting seat and a guiding shaft, a mounting hole is formed in the mounting seat, and a first guiding part is arranged in the mounting hole; a first guide part is arranged on the outer wall of the guide shaft, a second guide part is arranged on the outer wall of the guide shaft, in the process that the guide shaft is arranged in the mounting hole in a penetrating mode, the first guide part and the second guide part abut against each other and are in sliding fit, the guide shaft is arranged in the mounting hole to achieve the guide effect and the limiting effect, one of the first guide part and the second guide part is a guide protrusion, and the other one is a guide sliding groove; the safety door assembly is movably arranged on the guide shaft, so that the safety door assembly can keep a linear motion trail in the push-pull operation, rapid installation is achieved, and the clamping stagnation risk is reduced.

The invention discloses a low-voltage power distribution cabinet with a drawer pushing mechanism, and relates to the technical field of low-voltage power distribution cabinets. The low-voltage power distribution cabinet with the drawer pushing mechanism comprises a box body, a rotating wheel and a pulley, the rotating wheel is rotatably installed at the bottom of the box body, the pulley is rotatably installed on the inner wall of the box body, and the low-voltage power distribution cabinet further comprises a stabilizing device, a protection device and a lubricating device; when the power distribution cabinet is placed, the reset support drives the pushing block to extrude the trapezoidal block to enable the sliding rod to move, the moving sliding rod drives the friction plate to clamp the rotating wheel, and the rotating wheel is placed to roll. The power distribution pipe is prevented from sliding at the moment when the power distribution cabinet is in contact with the ground during placement, thereby being inconvenient for workers to operate.

This invention discloses a partitioned door drive structure and a high-voltage switchgear, belonging to the field of high-voltage switchgear. It includes a front cover and a rear cover, with a left bracket, a right bracket, and a drive shaft installed between them. A bevel gear is installed at one end of the drive shaft. A left drive screw and a right drive screw are also installed between the front and rear covers. A left threaded sleeve is installed on the left bracket and is fitted onto the left drive screw. A right threaded sleeve is installed on the right bracket and is fitted onto the right drive screw. During the door reset process, even if the door is subjected to significant force, the force in the direction of the threaded sleeve's movement will be offset by the drive screw, preventing the door from moving too quickly and ensuring greater safety and reliability. This solves the problem in existing high-voltage switchgear where the door opening and closing speed is too fast, easily injuring operators.

The present application relates to a kind of intelligent high-voltage switch cabinet valve linkage locking device, comprising: valve locking device and valve unlocking device, wherein valve locking device includes interlocking hook rotation component (A) and valve lifting hook head component (B), valve unlocking device includes middle door pressure plate component (C) and roller rotation component (D);The scheme adopts rotary tripping and pressure spring reset mechanism, and the interaction of the downward movement of circuit breaker chamber door pressure plate and the rotation of L-shaped plate driven by roller, and the connection of sheathed steel wire rope, realizes the reliable valve locking, simple unlocking, labor-saving, fast opening mechanism.

A cassette intended for integration into a high-voltage electrical switchgear cell, comprising a mobile trolley 10 carrying a switch 12 having movable contacts 15, an operating mechanism (13) for the movable contacts via operating springs and at least one release coil (14) for the operating springs, a motorized protective cover 21 intended to prevent access to the conductor bars A, B of the switchgear cell, and motorized drive means 20 for the mobile trolley 10 intended to connect the switch 12 to the conductor bars A, B. A first automation unit 19 is mounted on the mobile trolley 10 to control the operating mechanism 13 and the release coil 14, and a second automation unit 29 is mounted in the cassette 1 to control the protective cover 21 and the drive means 20 of the mobile trolley 10.

The application discloses an activity locking structure, a switch cabinet and a locking method, and belongs to the technical field of power grid equipment, wherein the activity locking structure comprises a cabinet body, a shielding piece, a first supporting rod, a moving rod, a limiting electronic lock and a control console, the shielding piece is sleeved with the first supporting rod and is in sliding cooperation with the first supporting rod, and the moving rod is installed on the shielding piece; the limiting electronic lock is installed on the cabinet body, the limiting electronic lock is provided with a lock tongue plate which is used for cooperating with the moving rod; the control console is electrically connected with the limiting electronic lock, and the control console is used for monitoring the locking state of the limiting electronic lock; and the shielding piece has two moving positions, and the shielding piece is limited by the lock tongue plate at one of the moving positions. The shielding piece is used for shielding a leakage position or a dangerous position in the cabinet body, when the shielding piece moves to one of the moving positions, the shielding piece is limited by the lock tongue plate, and maintenance personnel is prevented from entering the cabinet body and touching dangerous equipment.