790results about "Switchgear with withdrawable carriage" patented technology

The present invention relates to a functional unit of a low-voltage complete set of equipment guided and positioned through a sliding groove, including a unit chamber and a unit assembly within the unit chamber. There is a guide rail device on each of the left and right sides of the unit assembly. The guide rail device includes a sliding groove and at least two sliding members arranged front and rear and embedded in the sliding groove. The sliding members and the sliding groove are respectively located at the bottom of the unit assembly and on the unit chamber floor plate of the unit chamber. The sliding groove includes a forward movement stroke segment and a rear connection stroke segment distributed front and rear. The rear connection stroke segment is used to cooperate with the rear sliding member to guide the unit assembly in the connection stroke. The fitting clearance between the forward movement stroke segment and the sliding member > the fitting clearance between the rear connection stroke segment and the sliding member. The beneficial effects are as follows: The sliding groove type guide rail device can effectively ensure the correct alignment and insertion of the main and auxiliary circuit connectors during the displacement operation of the functional unit, and ensure more reliable main circuit connection performance; at the same time, the structure is simple, with few parts and low cost.

The invention relates to a multifunctional draw-out type low-voltage switch device, which relates to the technical field of low-voltage switch cabinets and comprises eight mutually matched instrument rooms, a digital detection module compartment, a transformer power supply wire inlet room, a dual-channel distribution bus room, an interbus wire outlet room, a module unit room, a feeder cable room and an emergency standby cable room. According to the invention, a power distribution mode of split-phase management and layered cutoff protection is adopted, so that maintenance personnel can quickly lock fault loops and fault current characteristics, split the fault loops and replace damaged parts, the maintenance process is efficient and convenient, and the downtime of equipment is shortened.

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 application relates to a low-voltage drawer cabinet, and relates to the technical field of drawer cabinets, which comprises a cabinet body, wherein the cabinet body is provided with a plurality of installation cavities in a vertical direction, a drawer main body located in the installation cavities, and a circuit breaker is fixedly arranged in the drawer main body; the drawer main body is provided with a locking pin, a transmission shaft located in the drawer main body, and a handle fixed to one end of the transmission shaft and rotatably arranged on the outer side of the drawer main body, and the transmission shaft can rotate around its own axis when the handle is rotated; a linkage part for controlling the locking pin is provided on the outer periphery of the transmission shaft, a locking through hole is provided on the bottom side of the drawer main body, and a locking slot is provided on the bottom side of the installation cavity; an adjusting part for controlling the opening and closing of the circuit breaker is provided on the inner end portion of the transmission shaft; the present application is safer through the mechanical locking structure on the drawer main body compared with the electrical locking structure, thereby improving the safety performance of the drawer cabinet when used.

The utility model discloses a valve device and a centrally installed switchgear, the valve device comprises an upper valve plate, a lower valve plate, a first installation mechanism and a second installation mechanism, and the upper valve plate and the lower valve plate are arranged between the first installation mechanism and the second installation mechanism from top to bottom along the vertical direction; each of the first mounting mechanism and the second mounting mechanism comprises an upper valve rack, a lower valve rack, a gear and a pushing mechanism; the upper valve plate is connected with the upper valve rack, the lower valve plate is connected with the lower valve rack, the gear is arranged between the upper valve rack and the lower valve rack and meshed with the upper valve rack and the lower valve rack, and the pushing mechanism is connected with the upper valve rack. The pushing mechanism can drive the upper valve rack to ascend or descend so as to drive the gear to rotate, and the gear drives the lower valve rack to move in the direction opposite to the upper valve rack. The valve device is not prone to clamping stagnation, stable, reliable, simple in structure, few in spare and accessory parts, easy to machine and assemble and capable of effectively reducing cost.

The invention relates to the technical field of switch cabinets, and particularly discloses a high-voltage switch cabinet which comprises a cabinet body, a cabinet door is hinged to the front end of the cabinet body, a static contact is arranged in the cabinet body, and the high-voltage switch cabinet further comprises a handcart assembly, a pushing assembly and a protection mechanism which are arranged in the cabinet body. The pushing assembly comprises a screw rotationally arranged in the cabinet body and a moving block in threaded fit with the screw, the protection mechanism comprises a locking assembly and a buffer assembly, the locking assembly comprises a ratchet structure and a driving structure, and the driving structure is used for driving the ratchet structure to lock the screw in one direction when the moving block moves relative to the handcart. The buffering assembly comprises a rotating piece arranged at the end of the screw and a buffering structure. According to the invention, the pushing assembly can be locked when the movement of the handcart is subjected to resistance, so that the handcart is prevented from continuously moving and further being damaged, and meanwhile, the situation that the handcart suddenly stops moving and hurts an operator can be avoided.

The utility model relates to the field of handcart type switch devices, in particular to a valve device with a padlock and a switch cabinet. The padlock mechanism is used for solving the problem that an existing padlock mechanism is arranged on a valve, a worker needs to operate the padlock mechanism on the valve in a cabinet, and the risk of electric shock exists. The valve device with the padlock comprises a valve frame, a valve and a transmission mechanism are arranged on the valve frame, the transmission mechanism is provided with an action input component used for being matched with a circuit breaker handcart so as to transmit actions to the valve when the circuit breaker handcart is pushed, and the valve frame further comprises a handcart guide rail. A blocking and locking piece is movably arranged at the position, close to the front end, of the handcart guide rail, the blocking and locking piece has an unlocking state and a locking state for avoiding or blocking the circuit breaker handcart, and a padlock structure is arranged on the blocking and locking piece and is kept in the locking state after padlock. The blocking lock piece is arranged at the front end position of the handcart guide rail, so that a worker is prevented from entering the cabinet to be in contact with a valve which is possibly electrified, the operation is convenient, and the safety is improved at the same time.

The utility model discloses a switch cabinet drawer side lock hand-pull propulsion mechanism, which is used for a drawer to enter and exit into a switch cabinet, the switch cabinet comprises a bottom support plate, and the drawer is arranged on the bottom support plate; the drawer locking device further comprises a locking assembly, the locking assembly comprises an unlocking piece, a locking rod and a positioning plate, the unlocking piece and the locking rod are arranged on the drawer, the positioning plate is arranged on the bottom supporting plate, a plurality of grooves used for containing the locking rod are formed in the positioning plate, and the grooves are formed in the same side of the positioning plate. And the opening is communicated with the side edge of the positioning plate. According to the utility model, the locking assemblies respectively arranged on the drawer and the bottom supporting plate are adopted, a plurality of locking point positions are arranged, the position of the drawer can be accurately locked in the push-in and pull-out actions of the drawer, and the locking assemblies are independent of a connecting structure between the drawer and the switch cabinet and are not influenced by the heavy self-weight of the drawer, so that the service life is effectively ensured, and the safety of the switch cabinet is improved. And an accurate locking position is ensured.

A draw in and out apparatus and a cart apparatus transporting the same are disclosed. A draw in and out apparatus according to an aspect of the present disclosure may include a first support unit detachably coupled to an external distribution board; a second support unit movably coupled to the first support unit; a third support unit movably coupled to the second support unit; and a power unit detachably coupled to the third support unit, and configured to be coupled to or detachable from an external circuit breaker, wherein the power unit includes a key withdrawably accommodated in an insertion space provided in the circuit breaker; and a motor member coupled to the key and configured to rotate the inserted key in any one direction of the clockwise direction and counterclockwise direction.

A manual driving device for electrically operating a breaker drawer comprises a shell, a manual driving mechanism and a clutch mechanism linked with the manual driving mechanism, the manual driving mechanism comprises a motor and a first gear connected with the motor, and the clutch mechanism comprises a clutch and a second gear connected with the clutch. The driving mechanism and the clutch mechanism are in meshed connection through the first gear and the second gear, the structures of the manual driving mechanism and the clutch mechanism are improved, the two parts are integrated into one part, and the first gear and the second gear are protected by the shell, so that the complexity of the manual function of installing the breaker drawer can be reduced, and the installation efficiency of the breaker drawer is improved. And when the clutch mechanism and the manual driving mechanism are installed by personnel, the installation positions and different parts do not need to be distinguished, the installation and disassembly efficiency is improved through integrated arrangement, and the production cost and the manufacturing cost can be reduced.

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 invention discloses a switch cabinet and an interlocking device for a switch cabinet circuit breaker, and relates to the technical field of switch cabinets. The switch cabinet comprises a switch cabinet body, an insulating column is fixed to the rear side of the switch cabinet body in a penetrating mode, and first power connection columns are symmetrically fixed in the insulating column in a penetrating mode; the mounting assembly comprises two parallel supporting plates fixed in the switch cabinet main body, and baffle plates are movably connected in movable openings in the supporting plates; the power connection assembly comprises a lock cylinder fixed to the edge of the front side of the bottom of the lower supporting plate, and locking assemblies are symmetrically fixed to the upper portion of the peripheral side of the lock cylinder; each locking assembly comprises a connecting sleeve fixed to the upper portion of the peripheral side of the lock cylinder, a rotating column is movably connected into each connecting sleeve, and an elastic plate is fixed to the front end of each rotating column; the fixing frame is fixed in front of the opening in the top of the upper supporting plate. According to the invention, the baffle plate is arranged in the switch cabinet, and the power connection assembly is blocked by the baffle plate during maintenance, so that misoperation and wrong power connection of an operator are well prevented.

The invention discloses an automatic circuit breaker handcart for a switch cabinet, and belongs to the technical field of circuit breakers, the automatic circuit breaker handcart for the switch cabinet comprises a bottom frame, the bottom frame is movably provided with a circuit breaker handcart, the circuit breaker handcart is provided with a plurality of arc extinguish chambers, and the arc extinguish chambers are provided with moving contacts. A front frame is installed at one end, far away from the circuit breaker handcart, of the bottom frame, an aviation socket located on one side, far away from the circuit breaker handcart, of the front frame is arranged on the bottom frame, a signal lead is installed on the aviation socket, and a pushing assembly connected with the circuit breaker handcart is arranged between the circuit breaker handcart and the front frame. A movable transmission assembly movably connected with the pushing assembly is arranged in the bottom frame, moving assemblies movably connected with the movable transmission assembly are arranged on the two sides of the bottom frame, a camera and a temperature sensor are installed on the top of one side of the front frame, and a third contact sensor is installed on the bottom frame. The device has the advantages of intelligent detection, ordered movement, full contact of moving and static contacts, safety, reliability, convenient operation, simplicity, convenience and practicability.

The utility model relates to the technical field of switch cabinets, and in particular to a metal armored drawer switch cabinet, comprising a cabinet body and a plurality of drawer cabinets, wherein the interior of the cabinet body is divided into a plurality of mutually independent cavities by partitions, wherein a plurality of heat conducting sheets are arranged inside the cavities, and the heat conducting sheets are spliced ​​to form slots for accommodating the insertion of the drawer cabinets, and heat dissipation fins are arranged on the outer side walls of the heat conducting sheets, and a gap is reserved between the heat conducting sheets and the inner side walls of the cabinet body, and a heat dissipation mechanism for blowing air to each cavity at the same time is arranged on the back of the cabinet body. By arranging the heat conducting sheets, heat dissipation fins and heat dissipation mechanism, the heat of the electrical components inside the drawer cabinet when working can be quickly extracted, the heat dissipation mechanism drives the flow of air, the heat dissipation fins increase the heat exchange area, the heat dissipation effect is better, and at the same time, the influence of each drawer cabinet on each other is avoided.

The utility model provides a drawer base and a drawer type circuit breaker, and belongs to the technical field of electrical equipment. The utility model provides a drawer seat. The drawer seat comprises a shell, a secondary wiring top plate, a secondary wiring terminal, a transmission part and a cover body, a through groove is formed in the side wall of the shell. And the end part of the secondary wiring top plate is arranged in the through groove. And the secondary wiring terminal is arranged on the shell. The transmission piece is arranged on the inner wall of the shell and opposite to the end portion of the secondary wiring top plate, and the transmission piece can drive the secondary wiring top plate to move. The cover body is arranged on the outer wall of the shell and covers the through groove. According to the invention, the cover body is arranged on the drawer seat, and the cover body is used for protecting the movement of the transmission part on the movement path of the transmission part, so that the influence of the external environment on the movement of the transmission part can be reduced, and the probability that the secondary wiring terminal cannot be separated from the circuit breaker body due to the clamping stagnation of the transmission part can be reduced. And the use reliability of the drawer type circuit breaker is improved.

The present invention relates to a door interlock device for a switchboard and, more specifically, to a door interlock device for a switchboard, which in a situation where opening of a switchboard door is restricted, can selectively release a door interlock function so as to open the door. By the door interlock device for a switchboard, according to the present invention, in a situation where opening of a switchboard door is restricted by the door interlock device, the interlock function of the door interlock device can be selectively released so that the switchboard door can be opened.

The utility model belongs to the field of switch cabinets, in particular to a high-voltage switch cabinet handcart locking front lower door interlocking device, which comprises a cabinet body, a front middle door and a front lower door, a lock catch is arranged on the inner side of the front middle door, a chassis truck is arranged on the cabinet body close to the front middle door, and the chassis truck is provided with a chassis truck operation hole and a door interlocking hook. The door interlocking hook can be controlled to be clamped with the lock catch through the chassis operation hole, the front middle door is locked through mechanical interlocking, an electromagnetic lock is replaced by the mechanical interlocking, and the reliability of the product is improved.

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.

A switch cabinet provided by the present invention comprises a switch cabinet shell, an air draft assembly, a circuit breaker and contact device, a partition plate assembly and fan blades, the switch cabinet shell is provided with a first air inlet and a first air outlet located at the top, the position of the first air outlet is higher than that of the first air inlet, and a handcart chamber is arranged in the switch cabinet shell. Under the condition that the air draft assembly is started, the switch cabinet shell sucks air along the first air inlet and exhausts air along the first air outlet; the partition plate assembly is arranged in the switch cabinet shell, an airflow channel is defined in the switch cabinet shell through partition of the partition plate assembly, a second air inlet is formed in one end of the airflow channel, and the other end of the airflow channel is communicated with the handcart chamber and is opposite to a pole cavity or a contact device of the circuit breaker. And external air is sucked from the second air inlet and flows to the pole cavity of the circuit breaker, so that the sliding connection point in the circuit breaker is directly cooled, or air is blown to the contact device, and therefore, the cavity of the contact device or the circuit breaker can be directly and efficiently cooled.

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 utility model relates to the technical field of switch cabinets, in particular to a hand-cranking propulsion mechanism assembly and a unit assembly. The hand-cranking propelling mechanism assembly comprises a hand-cranking propelling mechanism and a boss matching structure, the hand-cranking propelling mechanism comprises a propelling lead screw, a lead screw installation support, an elastic positioning device and an elastic positioning operation device, the boss matching structure is located on a unit chamber, and the elastic positioning device is provided with a positioning piece which is elastically pushed out. When the pushing lead screw rotates to the initial matching angle, the pushing lead screw is clamped into the positioning groove, the elastic positioning operation device is hinged to the lead screw installation support, and in the process that the unit leaves the previous position but does not enter the next position, a boss of the boss matching structure drives the elastic positioning operation device to swing, and the positioning effect of the positioning piece is relieved. The hand-cranking propelling mechanism assembly has the advantages that the hand-cranking propelling mechanism assembly cannot be damaged due to misoperation, the structure is simplified, the function reaches the standard, and operation is more convenient. And meanwhile, positioning hand feeling force and sound prompts can be generated after pushing in place, so that misoperation is avoided.

The utility model provides a partitioned low-voltage switch cabinet body which comprises a frame body, the outer side of the frame body is covered with an outer shell, the front side in the outer shell is provided with a drawer rest stand, the drawer rest stand is provided with a plurality of drawer structures capable of being drawn out in a height mode, the rear side in the outer shell is provided with a vertical cabinet area, and the vertical cabinet area is provided with a vertical back plate and a rear cabinet door capable of being opened. A plurality of air inlet holes are formed in the position, close to the bottom end, of the outer shell, a heat dissipation top is arranged at the top end of the outer shell, a plurality of air outlet holes are formed in the heat dissipation top, a plurality of first heat dissipation holes are formed in the bottom end and the two sides of the drawer structure, and the problems that the low-voltage switch cabinet is low in space utilization rate and low in heat dissipation efficiency are solved.

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 present invention discloses a high-voltage complete power distribution cabinet, and the technical scheme adopted includes: a cabinet, a chassis vehicle arranged in the cabinet, and a middle door hinged at the middle of the cabinet, the chassis vehicle includes a base, a front beam arranged at the front end of the base, and rollers arranged at both sides of the base, the cabinet is provided with tracks matching with the rollers on both sides, the rear end of the track is provided with a lock hole, the front beam is provided with a first lock pin matching with the lock hole on both sides, and the first lock pin is provided with a handle extending from the first long hole of the front beam. The advantages are as follows: when the middle door is closed, the first lock pin can be inserted into the lock hole to completely lock it, and the second lock pin can be moved away from the lock plate to complete unlocking, realizing linkage operation, making the operation simpler and safer.

The present application relates to a multifunctional withdrawable low-voltage switchgear, and relates to the technical field of low-voltage switchgear, which includes eight mutually coordinated instrument rooms, a digital detection module compartment, a transformer power supply incoming line room, a dual-channel distribution bus room, a connecting bus outgoing line room, a module unit room, a feeder cable room, and an emergency standby cable room. The present application adopts a power distribution method of phase management and layered current interruption protection, so that maintenance personnel can quickly lock the fault circuit and fault current characteristics, split the fault circuit, and replace damaged parts, making the maintenance process efficient and convenient, and shortening equipment downtime.

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.