380results about "Switchgear with withdrawable carriage" patented technology

The invention relates to the technical field of intelligent power grids, in particular to a low-voltage draw-out type switch cabinet which comprises a cabinet body, a power grid arranged on the inner side wall of the cabinet body, a heat dissipation plate arranged on the inner side wall of the cabinet body, a plurality of static contacts arranged on the inner side wall of the cabinet body and a cleaning mechanism arranged on the inner side wall of the cabinet body and used for cleaning the power grid. The cleaning mechanism comprises two first electric sliding rails arranged on the inner side wall of the cabinet body, according to the low-voltage draw-out type switch cabinet, the overturning plate is driven by the first motor to rotate at multiple angles, the spraying head can evenly cover the outer corners of the cabinet body after the insect repellent is atomized, reptiles are dispersed from the source, and the low-voltage draw-out type switch cabinet is convenient to use. The cleaning mechanism can be quickly started, heat dissipation blocking and equipment faults caused by accumulation of dead insects are prevented, and it is guaranteed that the low-voltage draw-out type switch cabinet is always kept in a safe and stable working state in long-term operation.

The present invention belongs to the technical field of electrical devices. Disclosed is a primary-secondary integrated smart ring main unit. The smart ring main unit comprises a mechanism chamber, cable bushings, an explosion-proof valve seat, a cable chamber, an operating mechanism, a switch linkage lock, a linkage mechanism, a low-voltage cabinet, umbrella-skirt bushings, and a circuit-breaker apparatus, wherein the several cable bushings are mounted on a top plate of the cable chamber; the explosion-proof valve seat is mounted on the top plate of the cable chamber; the mechanism chamber is mounted above the cable chamber; the circuit-breaker apparatus is mounted inside the mechanism chamber; the several umbrella-skirt bushings are mounted inside the mechanism chamber; the operating mechanism is mounted inside the mechanism chamber, and is arranged at the front end of the circuit-breaker apparatus; the linkage mechanism is arranged above the operating mechanism; the low-voltage cabinet is mounted above the mechanism chamber; and the switch linkage lock is mounted on the linkage mechanism. The problem in the prior art whereby switches of a ring main unit cannot be operated separately, easily resulting in the inability to open cabinet doors or the risk of electric shock when a fault occurs, is solved. The safety factor of the ring main unit is improved, and the universality thereof is increased.

The utility model discloses a novel dual-power multi-standby plug-in low-voltage switch cabinet, which comprises a base, a bus coupler cabinet mounted in the middle of the top end of the base, a first wire inlet cabinet mounted on one side of the top end of the base, and a second wire inlet cabinet mounted on the other side of the top end of the base, drawer type circuit breakers are installed in the middle of the bus coupler cabinet, the middle of the first wire inlet cabinet and the middle of the second wire inlet cabinet respectively, a change-over switch is installed on one side of the top of the front face of the bus coupler cabinet, an automatic switching microcomputer is installed on the other side of the top of the front face of the bus coupler cabinet, and two wire outlet drawers are installed at the bottom of the first wire inlet cabinet and the bottom of the second wire inlet cabinet respectively. According to the novel dual-power-supply multi-standby plug-in low-voltage switch cabinet, the two wire inlet cabinets and the bus coupler cabinet of the low-voltage switch cabinet adopt electrical interlocking to ensure that the three wire inlet cabinets and the bus coupler cabinet cannot be switched on at the same time, and a standby power automatic switching microcomputer and a change-over switch are additionally arranged on the contact cabinet to realize three switching functions of standby power automatic switching, manual operation and stopping.

The utility model discloses a low-voltage switch cabinet drawer unit and a low-voltage switch cabinet, and relates to the technical field of low-voltage switch cabinets, the low-voltage switch cabinet drawer unit comprises a cabinet bin, a switch drawer and a wiring anti-loosening assembly, the switch drawer is slidably installed in the cabinet bin, the wiring anti-loosening assembly is installed on the inner wall of the rear side of the cabinet bin, and the wiring anti-loosening assembly is installed on the inner wall of the rear side of the cabinet bin. The wiring anti-loosening assembly comprises a static contact, a moving contact, a connecting wire, a positioning sleeve, an assembling plate and a positioning clamping groove, the static contact is fixedly connected with the rear wall of the cabinet bin, the moving contact is installed on the front side of the static contact, the front side of the moving contact is connected with the connecting wire, and the moving contact is sleeved with the positioning sleeve. According to the low-voltage switch cabinet drawer unit and the low-voltage switch cabinet, the positioning sleeve can be sleeved outside the moving contact to limit the moving contact, and the two sides of the positioning sleeve can be clamped and connected with the positioning clamping grooves, so that the moving contact and the static contact are prevented from being loosened due to the fact that the moving contact is pulled to move under the condition that the connecting wire is pulled.

A drawer base door opening and closing structure, comprising a first gear and a safety door. The first gear is rotationally arranged and can drive a circuit breaker body to move back and forth in a drawer base, the first gear being an incomplete gear that is provided with transmission teeth. The safety door comprises a movable partition plate and a static partition plate, the movable partition plate being vertically movably arranged on the static partition plate, and further comprises a sliding plate and an elastic member for resetting the sliding plate, wherein the sliding plate is provided with a sliding-plate guide rail, and the drawer base is provided with a rotation support; the cooperation between the sliding-plate guide rail and the rotation support enables the sliding plate to be movably arranged on the drawer base; and the sliding plate can move along the sliding-plate guide rail and can rotate around the rotation support. A circuit breaker, comprising the drawer base door opening and closing structure. In the drawer base door opening and closing structure and the circuit breaker of the present invention, the first gear, which is rotationally arranged and drives the circuit breaker body to move in the drawer base, directly drives the sliding plate to achieve drawer base door opening and closing, so that there are a small number of transmission stages, enabling operations to be stable and reliable, improving the reliability of drawer base door opening and closing, while also greatly reducing the number of parts, enabling assembly to be convenient and quick.

The application relates to the technical field of low-voltage switch cabinets, and discloses a pull-out type low-voltage switch cabinet which comprises a switch cabinet body, a partition plate is fixedly connected inside the switch cabinet body, a drawer slot is arranged on one side of the switch cabinet body, a limiting slot is fixedly connected inside the drawer slot, a sliding plate is movably connected inside the limiting slot, a drawer cabinet is fixedly connected to the side surface of the sliding plate, a heat dissipation mechanism is movably connected to the side surface of the switch cabinet body away from the partition plate, a supporting mechanism is movably connected to the bottom end of the drawer cabinet, and a limiting mechanism is movably connected to the side surface of a drawer panel; when the drawer cabinet is pulled out, the drawer cabinet drives the two rack strips to move; when the rack strips are in contact with the gear after moving, the gear rotates; when the gear rotates, the supporting shaft rotates; when the supporting shaft rotates, the rotating plate and the limiting plate rotate; after the limiting plate rotates, the limiting plate is located above the protruding plate; at this time, the protruding plate is pressed down to support the drawer cabinet, so that the drawer cabinet is not easy to deform.

The drawer seat door opening and closing structure comprises a first gear and a safety door, the first gear is rotationally arranged and can drive the circuit breaker body to move back and forth in the drawer seat, and the first gear is an incomplete gear and is provided with transmission teeth; the safety door comprises a movable partition plate and a static partition plate, the movable partition plate is arranged on the static partition plate in an up-down moving mode, a sliding plate guide rail is arranged on the sliding plate, a rotating fulcrum is arranged on the drawer base, and the sliding plate guide rail is matched with the rotating fulcrum to enable the sliding plate to be movably arranged on the drawer base. The sliding plate can move along the sliding plate guide rail and can rotate around the rotating fulcrum. The circuit breaker comprises the drawer seat door opening and closing structure. According to the drawer base door opening and closing structure and the circuit breaker, the first gear which drives the circuit breaker body to move in the drawer base and is rotationally arranged directly drives the sliding plate to achieve door opening and closing of the drawer base, the number of transmission stages is small, action is stable and reliable, the reliability of door opening and closing of the drawer base is improved, the number of parts is greatly reduced, and assembling is convenient and fast.

The utility model discloses a drawer mounting structure in a draw-out type low-voltage switch cabinet, and belongs to the technical field of mounting structures. A drawer installation structure in a draw-out type low-voltage switch cabinet comprises an installation frame, first sliding rail rods are symmetrically arranged on the inner wall of the installation frame, and sliding seats are arranged on the surfaces of the first sliding rail rods in a sliding mode. And a set of stable sliding transmission system is formed. When the drawer needs to be operated, an operator can easily move the drawer only by pulling or pushing the handle on the drawer body no matter the drawer is pulled out or pushed in. The sliding seat slides on the first sliding rail rod, and the moving seat slides on the second sliding rail rod, so that the drawer can be pulled out and pushed in more stably and smoothly in cooperation with the rotation of the movable strip, the operation resistance is reduced, and the operation convenience is greatly improved.

The invention discloses a low-voltage power distribution cabinet, and belongs to the technical field of power distribution cabinets. A bus chamber partition plate of the low-voltage power distribution cabinet is arranged in a cabinet body, the bus chamber partition plate divides the internal space of the cabinet body into an upper compartment space and a lower compartment space, a horizontal bus chamber is located in the upper compartment space, and a vertical bus chamber, a primary and secondary connector assembly chamber, a functional unit chamber, a primary cable chamber and a secondary cable chamber are all located in the lower compartment space; the middle partition plate is arranged in the lower compartment space and divides the lower compartment space into a front compartment area and a rear compartment area, the functional unit chamber is located on the left side of the front compartment area, the secondary cable chamber is located on the right side of the front compartment area, the vertical bus chamber is located on the left side of the rear compartment area, and the secondary connector assembly chamber is located in the middle of the rear compartment area. The primary cable chamber is positioned at the rear part of the rear compartment area; the plurality of terminal layer spacing boards of the first enclosing assembly are arranged in a secondary connector room at intervals. According to the invention, mutual isolation of terminals of different units is realized, and the requirement of a separation form is met.

The utility model discloses a low-voltage switch cabinet with a good moisture-proof effect in a coastal region, which comprises a switch cabinet which is a drawer type switch cabinet and is characterized in that a moisture-proof assembly is arranged in a drawer of the switch cabinet; the moisture-proof assembly is used for preventing moisture. The utility model relates to the technical field of moisture-proof equipment of low-voltage switch cabinets, in particular to a low-voltage switch cabinet with a good moisture-proof effect in coastal areas, which is convenient for mounting, limiting and taking out moisture absorption blocks and is convenient for replacing the moisture absorption blocks.

The utility model relates to a metal armored movable switch cabinet. The technical problem to be solved by the utility model is to provide a metal armored movable switch cabinet. According to the technical scheme, the switch cabinet linkage device comprises a switch cabinet side plate, a switch cabinet door and a switch cabinet linkage assembly, the switch cabinet linkage assembly comprises a linkage piece, a swing piece and a pin shaft, the swing piece is connected with the linkage piece in a swing mode through the pin shaft, the linkage piece comprises a linkage piece butt joint part, and the linkage piece butt joint part is connected with the switch cabinet door. The linkage piece butt joint part is vertically bent in sequence to form a linkage piece first mounting part, a linkage piece transition part, a linkage piece reinforcing part and a linkage piece second mounting part, and a linkage piece cylindrical part is arranged at the front end of the linkage piece butt joint part. The switch cabinet has the advantages that the linkage piece and the side plate of the switch cabinet as well as the swing piece and the cabinet door of the switch cabinet are in multi-point connection and have transverse and radial bidirectional connection force, so that the connection firmness is remarkably improved, and the phenomena of loosening and falling caused by vibration or frequent operation can be effectively prevented.

The invention relates to the technical field of low-voltage switch cabinets, and particularly discloses a drawer type low-voltage switch cabinet which comprises supporting legs, a drawer frame is fixedly connected to the tops of the supporting legs, an electric control assembly is arranged on the inner side of the drawer frame, and a switch assembly is installed on the front face of the electric control assembly. The back surface of the inner side of the drawer frame is fixedly connected with a connecting switch; in the process of needing circuit switching, a user firstly pushes the electric control main body, then drives the rotary transmission rod and the rotary positioning shaft to rotate by rotating the rotary handle, and then drives the positioning sensing assembly, the first buffer assembly, the second buffer assembly and the contact switch assembly to rotate; when the touch control positioning groove is opened, the contact plate rotates from one side of the touch control positioning groove to the other side, so that a circuit is switched from one side to the other side, and when the contact plate is far away from the other side, the circuit on the other side is disconnected, so that the two circuits cannot be opened at the same time, and a user can operate conveniently.

A modularized and integrated high-explosive circuit breaker handcart comprises a chassis truck, an electrical part back box and a circuit breaker body are installed above the chassis truck, and a power module, a chassis truck controller, a protector, a circuit breaker controller, a relay, a gateway and a micro circuit breaker are installed in an inner cavity of the electrical part back box. The power supply module is connected with the chassis vehicle controller, the circuit breaker controller and the protector through the micro circuit breaker, the protector is connected with the chassis vehicle controller and the circuit breaker controller, the circuit breaker controller is connected with the circuit breaker body through the relay, and the gateway is connected with the chassis vehicle controller and the circuit breaker controller through communication interfaces; and the side surface of the electrical part back box is provided with a micro circuit breaker operation window and a network cable wiring window. According to the integrated high-explosive circuit breaker handcart, the defects in the prior art are overcome, the overall dimension of the whole integrated high-explosive circuit breaker handcart is smaller than that of similar products, the required equipment accommodating space is smaller, the probability that electrical parts are affected by external factors is effectively reduced, and the reliability and the stability of equipment are improved.

The utility model discloses a medium-voltage circuit breaker handcart execution unit box with a locking mechanism, which is used on an electric execution mechanism of a medium-voltage circuit breaker handcart and comprises a box body, an execution mechanism and the locking mechanism. The box body is provided with a box door; the executing mechanism comprises a motor and a driving assembly, and the driving assembly is provided with a manual connecting part; the locking mechanism comprises a baffle assembly, a buckling block and a travel switch assembly. According to the utility model, the manual connection part is used for being connected with an external crank to realize manual operation, and the external hanging mechanism of the medium-voltage circuit breaker handcart can be ensured to be normally used in combination with electric driving realized by the motor; the baffle assembly is arranged and used for controlling the travel switch assembly to conduct electrical action and controlling the manual connecting part to conduct closing or opening action. Through the cooperation of the clamping groove and the clamping block, an execution mechanism for opening the box door for misoperation is prevented from violating five-prevention, and the use safety is improved.

The embodiment of the utility model provides a wire inlet valve assembly for an electrical cabinet and the electrical cabinet. The inlet wire valve assembly comprises a shell, a plurality of first plug ports, a plurality of hinge holes, a first stroke hole and a second stroke hole, wherein the first stroke hole and the second stroke hole are formed in the extending direction of the shell; the valve is movably coupled in the shell and comprises a plurality of second plugging ports; the first bolt is coupled to the valve and is arranged in the first stroke hole; the connecting rod assembly comprises a hinged end and a sliding end, the hinged end is coupled in the hinged hole, and the sliding end is slidably coupled in the second stroke hole; the first elastic piece is coupled between the sliding end and the first bolt and is arranged to be stretched to accumulate force so as to drive the valve to move from the shielding position to the opening position through the first bolt when the sliding end slides in the direction away from the hinge hole, and in the opening position, the multiple first insertion openings are aligned with the multiple second insertion openings correspondingly; and a plurality of conductors can be inserted. Therefore, the reliability and the operation convenience can be improved.

The utility model discloses a monitoring mechanism for a multifunctional handcart of a switch cabinet, which comprises a handcart supporting plate which is horizontally arranged, a box body which is arranged on the lower plate surface of the handcart supporting plate and at least two auxiliary switches which are arranged in the box body side by side, and each auxiliary switch is composed of a plurality of normally open / normally closed nodes. The plurality of auxiliary switches receive the contact pressure of the chassis of the handcart at the same time, so that the plurality of normally-open / normally-closed nodes generate electric signals and transmit the electric signals to the monitoring modules. Two auxiliary switches are arranged on a handcart push-in path, synchronous triggering can be ensured when the handcart is completely in place by touching and pressing the auxiliary switches through a chassis truck, accurate monitoring of the position of the multifunctional handcart can be realized by transmitting signals to each monitoring point in a switch cabinet through the two auxiliary switches and node signals of the two auxiliary switches, meanwhile, the structural design is simplified, and the cost is reduced. The reliability is improved.

The utility model provides an alternating control mechanism for a ground knife and a handcart of an electric cabinet. The alternating control mechanism comprises a ball spline shaft, a ground knife spline shaft, a handcart assembly, a ground knife assembly and a handcart head, the motor reducer is connected with the ball spline shaft through a synchronous belt structure and controls the ball spline shaft to stretch; the driven gear inner ring sleeves the outer edge of the ball spline shaft and rotates along with the ball spline shaft; one end of the ball spline shaft is fixedly connected with a handcart head, and the other end of the ball spline shaft is provided with a second connecting seat which is fixed on a linear sliding block of the grounding knife-switch assembly; the handcart assembly stretches out and draws back along the sliding mechanism along with the ground knife spline shaft through the telescopic support. The outer edge of the ground knife spline shaft is sleeved with a driving gear through a positioning flange, and the driving gear and the driven gear are in meshing transmission through a transition gear. Under the condition that the appearance of the cabinet body is not changed and the original manual operation service is not interfered, the operation service of the robot on the switch cabinet is realized, the use of human resources is reduced, and the working efficiency is improved.

The invention discloses a high-voltage power distribution equipment power-off and power-on method and a high-voltage power distribution system, belongs to the technical field of coal mine electromechanical engineering, and solves the problem of how to reduce the safety risk of coal mine underground high-voltage power equipment power-off and power-on operation. Comprising the following steps: S11, breaking circuit breakers of all the lower-level high-voltage vacuum power distribution devices one by one along a preset sequence, and keeping isolation handcarts of the lower-level high-voltage vacuum power distribution devices in an on state; s12, breaking a circuit breaker of the upper-level ground high-voltage power switch device; s13, the isolation handcarts of all the subordinate high-voltage vacuum power distribution devices are moved from the on state to the isolated state one by one along a preset sequence; s14, an isolation handcart of a superior ground high-voltage power switch device is moved to an isolation state from an on state; according to the invention, hidden safety risks existing in power outage and transmission operation are overcome from an operation level, the phenomenon that an operator pulls an isolation handcart on load is avoided on the premise of not influencing safety and working efficiency, and the safety of power outage and transmission operation of underground high-voltage equipment is improved.

The utility model provides a 10kV floor type handcart solid-sealed vacuum circuit breaker, which comprises a circuit breaker body and a rack, and is characterized in that the circuit breaker body is a central circuit breaker and adopts a solid-sealed pole; the solid-sealed pole is provided with an upper wire outlet seat and a lower wire outlet seat, the upper wire outlet seat is connected with an L-shaped copper bar, and the lower wire outlet seat is connected with an L-shaped copper bar; a chassis truck is connected below the circuit breaker body and is provided with a limiting plate; the rack is provided with a fixing frame, and the limiting plate is connected with the fixing frame in a sleeved mode so that the chassis can be connected with the rack. The circuit breaker mechanism and the interlocking device are verified mature schemes, so that the stability of the device is ensured, and the tedious process and high cost of verifying mechanical and electrical characteristics in designing a brand-new floor type circuit breaker are avoided.

The invention provides a modularized low-voltage switch cabinet, which relates to the technical field of low-voltage switch cabinets and comprises a cabinet body, a drawer, at least two bidirectional linkage mechanisms, at least two groups of switching connecting pieces and at least two groups of double-type guide mechanisms, each set of double-type guide mechanism comprises at least two guide rails arranged at different heights of the cabinet body and a sliding piece set arranged in each guide rail, each set of switching connecting pieces comprises two switching connecting pieces, and the two switching connecting pieces are connected to the two opposite sides of the drawer in a sliding mode respectively; the sliding direction of each switching connecting piece is opposite to the corresponding sliding piece set, so that when the switching connecting pieces slide relative to the drawer, part of the area of each switching connecting piece is connected with or separated from part of the corresponding sliding piece set, and by means of the arrangement, when the drawer cannot be pulled out, the switching connecting pieces can be switched to the corresponding sliding piece sets. Switching can be rapidly carried out through the two sets of switching connecting pieces and the two sets of bidirectional linkage mechanisms, and the drawing function of the drawer can be recovered within a short time.

The utility model discloses a GCK low-voltage draw-out type switch cabinet with a high-efficiency heat dissipation function, and relates to the technical field of switch cabinets, the switch cabinet comprises a cabinet body, support frames and drawers, a plurality of support frames are fixedly installed between two sides in the cabinet body, the tops of the plurality of support frames are provided with the drawers in a sliding manner, and the drawers are arranged in the cabinet body. Sliding rails are fixedly installed on the two sides of the top surfaces of the multiple supporting frames, sliding columns are fixedly installed on the two sides of the bottoms of the multiple drawers, the multiple sliding columns are slidably connected with the interiors of the multiple sliding rails correspondingly, multiple ventilation pipes are fixedly installed between the top and the bottom of one end of the cabinet body, and a protection frame is fixedly installed on the top of the cabinet body. And the plurality of ventilation pipes penetrate through the top of the cabinet body and extend into the protection frame. According to the utility model, heat dissipation can be conveniently carried out on the interior of the switch cabinet, heat dissipation can be accurately carried out on electrical elements in each drawer, the heat dissipation efficiency of the interior of the switch cabinet is improved, and normal operation of the electrical elements is prevented from being influenced by high temperature.

The invention relates to the technical field of power distribution cabinets, and discloses a high-voltage centrally installed switchgear. The locking part is configured at the joint of the instrument chamber, the circuit breaker handcart chamber and the corresponding cabinet door, and the phenomenon that the cabinet door is automatically opened due to the fact that the cabinet door is not closed in place is avoided; the locking part comprises a secondary lock body installed on the cabinet door and a primary lock body installed at the position, corresponding to the secondary lock body, of the front side of the cabinet body, a contact piece is embedded in the primary lock body, and when the cabinet door executes the closing action, the spring bolt end of the secondary lock body enters the primary lock body until the cabinet door is completely attached to the cabinet body; the spring bolt end triggers the contact piece and generates a click feedback sound; acoustic feedback is provided through the contact piece when the cabinet door is closed, the effectiveness of the operation is ensured, invalid closing operation is avoided, meanwhile, the L-shaped clamping plate of the side edge fixing part extrudes the two ends of the side edge of the cabinet door, the fitting degree of the cabinet door and the cabinet body is ensured, and the closeness can be ensured through extrusion compensation even if the cabinet door warps.

The application discloses a kind of anti-idling hand-cranking mechanisms for drawer switch cabinet based on smart grid, it is related to drawer switch cabinet anti-idling technical field, comprising: drawer, further comprising: second component;The second component includes transverse slot, and transverse slot is threadedly connected with screw element, and second component is flexibly moved in plug-in slot by engaging element, and the effective inner diameter of padlock hole can be adjusted in real time according to actual padlock size, and padlock of fixed size is no longer relied on;Whether it is small than the small size padlock of conventional fixed hole, or regular size padlock, can be realized stable plug-in by the position adaptation of engaging element, effectively solve the limitation of " only can be adapted to specific padlock " in prior art;The above design makes the operating handle of the same switch cabinet compatible with different specifications, different brands of padlock, without needing to match exclusive padlock for different switch cabinet separately, substantially improve the versatility of equipment in multi-specification switch cabinet maintenance scene, reduce the procurement and management cost of enterprise to padlock.

The utility model relates to an assembly structure of a low-voltage drawer type switch cabinet, which comprises a switch cabinet main body and a plurality of drawer cabinet main bodies, the switch cabinet main body is provided with a plurality of accommodating cavities for accommodating the drawer cabinet main bodies, the drawer cabinet main bodies are arranged in the accommodating cavities, a plurality of guide sheets are inserted into the switch cabinet main body, and two guide sheets correspond to one drawer cabinet main body. The drawer cabinet body comprises a cabinet door, vertical plates arranged on the two sides of the cabinet door and a transverse rod connected with the two vertical plates, the transverse rod is arranged at the top of the cabinet door, rollers are rotationally arranged on the vertical plates and abut against the guide pieces, and the rollers rotate to drive the vertical plates to slide in the length direction of the guide pieces. The drawer cabinet is simple and convenient to install, and the installation speed of the drawer type switch cabinet is improved.

A novel power distribution drawer cabinet comprises a drawer type power distribution cabinet body, a storage battery, a positioning mechanism and a control circuit. The positioning mechanism comprises a touch circuit module, an electric pull rod and an electric push rod, a supporting plate is fixedly installed at the lower side end of a sliding rail of the power distribution drawer, a pushing plate is fixedly installed outside the lower end of the power distribution drawer, and a positioning hole is formed in the rear lower end of the power distribution drawer; the lower end of the electric pull rod is fixedly installed on the upper portion of the rear-end supporting plate. And the storage battery, the touch circuit module of the positioning mechanism and the control circuit are arranged in an element box in the power distribution drawer and are electrically connected. According to the utility model, the power distribution drawer can be effectively positioned through the electric pull rod after being closed, so that the probability of poor contact of input and output plug connectors is prevented; when a fire disaster happens to control electrical equipment in the power distribution drawer, the power distribution drawer can be pushed forwards by the electric push rod to move forwards for a certain distance at the first time, and then input and output power supplies of the power distribution drawer are closed.

The invention belongs to the technical field of high-voltage switch cabinets, and particularly relates to a high-voltage switch cabinet convenient to overhaul. The power distribution cabinet comprises a cabinet body, the cabinet body is sequentially provided with an instrument chamber, a circuit breaker chamber and a cable chamber from top to bottom, and the cabinet body is connected with a cabinet door; a handcart chassis is arranged in the circuit breaker chamber, a sliding frame is connected to the handcart chassis in a sliding mode, the circuit breaker body is fixedly installed on the sliding frame, and locking mechanisms used for fixing the sliding frame are fixedly installed on the inner walls of the two sides of the circuit breaker chamber. A pair of first racks are symmetrically and fixedly connected to the sliding frame, a plurality of supports are fixedly connected to the handcart chassis, and gears meshed with the first racks are connected to the supports. The locking mechanism comprises a mounting frame and a second rack; when the handcart chassis is pulled out of the cabinet body, the carriage is driven to move outwards on the handcart chassis, so that the circuit breaker body is completely moved out of the cabinet body, and maintenance of the circuit breaker body is facilitated.

The utility model provides a busbar structure and a circuit breaker, the busbar structure comprises a busbar, a heat dissipation assembly and a mounting bracket, and the busbar is used for being mounted on a circuit breaker seat body of the circuit breaker and is used for being connected with an external conductive piece; the heat dissipation assembly is connected to at least one side of the busbar and is in heat exchange contact with the busbar to dissipate heat of the busbar, and the mounting bracket is respectively connected with the busbar and the circuit breaker seat body, so that heat generated when the busbar works can be timely transmitted to the heat dissipation assembly for heat exchange, the heat dissipation assembly can dissipate heat and cool the busbar, and the service life of the busbar is prolonged. The heat dissipation efficiency and heat dissipation performance of the busbar are improved, the working temperature of the busbar is reduced, and a relatively good temperature rise effect is realized, so that the phenomenon that the performance of the busbar and peripheral parts thereof is damaged due to too fast aging is avoided to a certain extent, the working performance and the service life of the busbar and the peripheral parts thereof are ensured, the use safety is improved, and the service life of the busbar and the peripheral parts thereof is prolonged. Therefore, the working performance and the service life of the circuit breaker with the busbar structure are ensured.

This invention discloses a pull-out switchgear interlock and switchgear, relating to the field of electrical equipment technology. The invention includes a cabinet with several parallel support bars fixed at equal intervals on both sides of the inner wall. A limit plate is fixed at the front of the support bars of the same height. Insulating sleeves are symmetrically and continuously fixed above the rear sides of the cabinet above two support bars of the same height. A drawer body is movably connected to the outer sides of two insulating sleeves of the same height. A connecting plate is fixed to the front end of each pivot, and a fixing shell is fixed to the front side of the connecting plate. A fixing block is fixed to the outer side of the conductive post at the rear of the inner wall of each drawer body. A through-hole is formed on one side of each fixing block. An insulating locking plate is movably connected to the through-holes in two fixing blocks within the same drawer body. Connecting rod one and connecting rod two are fixed to the bottom of the insulating locking plate near the fixing shell. The advantages of this invention are: during operation, unlocking and pulling out the drawer body can be performed with double power disconnection, making the operation safer.

The application discloses a voltage transformer plug-in trolley cabinet and relates to the field of electric power engineering, which comprises a cabinet body, support feet connected to the two sides of the bottom of the cabinet body, three hand carts connected to the inside of the cabinet body, a handle connected to one side of the hand cart, and a limiting assembly arranged in the inside of the hand cart. When the handle is pulled to pull out the hand cart, the limiting block is pressed to rotate and compress the torsional spring, the first roller is in contact with the cabinet body, the abrasion between the limiting block and the cabinet body is reduced by the first roller, the service life of the structure is prolonged, the limiting block is in the corresponding position with the limiting groove after the hand cart is pulled out, the limiting block is driven into the limiting groove by the loss of pressure of the torsional spring, the hand cart is limited by the limiting block and the limiting groove, the sliding distance of the hand cart is prevented from being too large during the maintenance of the staff, and the operation is facilitated.

The invention relates to a drawer type frame circuit breaker, and relates to the technical field of circuit breakers, the drawer type frame circuit breaker comprises a circuit breaker body, a cabinet body used for installing the circuit breaker body, an arc extinguish chamber arranged on the circuit breaker body and a graded energy storage arc extinguish system, and the graded energy storage arc extinguish system comprises an air pump, a high-pressure air storage tank, a low-pressure air storage tank, a spray pipe and a graded guide valve. The grading pilot valve controls the high-voltage gas storage tank and the low-voltage gas storage tank to spray gas to the arc extinguish chamber according to the opening current. According to the invention, the effects of graded gas storage and gas injection arc extinguishing according to the opening current are achieved, the arc extinguishing efficiency and reliability are improved, and safe and stable operation of the drawer type frame circuit breaker is ensured.