592results about "Shutters/guards preventing contact access" patented technology

The invention relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box which comprises a box body and a box door, the box door is rotationally connected to the box body, a locking spring is arranged on the box body, a locking block is arranged on the locking spring, a connecting rope is arranged on the box door, and one end, away from the box door, of the connecting rope is arranged on the locking block; when the box door is opened, the locking spring is in a stretching state; when the box door is closed, the locking spring is in a non-stress state, a worker pulls the box door open, the box door drives the locking block to move through the connecting rope, the locking block drives the locking spring to stretch, and if the worker does not press the box door continuously, the locking spring can drive the box door to be closed through the locking block and the connecting rope; therefore, the problem that a worker forgets to close the box door is avoided, the box door can stably block the opening of the box body, external sundries are not easy to directly enter the box body, and the phenomenon that the electric energy metering box goes wrong due to the fact that an external person mistakenly shocks the electric energy metering box is avoided.

The invention discloses an electrical cabinet with a dehumidification function, and relates to the technical field of electrical cabinets, and the electrical cabinet with the dehumidification function comprises a cabinet body, a top plate is fixed at the top of the cabinet body, electrical equipment is fixed in the cabinet body, an air inlet hole is formed in the right side of the cabinet body, a suction fan is fixed at the left side of the cabinet body, and an air outlet hole is formed in the right side of the cabinet body. And an air suction pipe of the suction fan communicates with the interior of the cabinet body, a controller is fixed to the front face of the cabinet body, and a connecting cover is fixed to the right side of the cabinet body. According to the electrical cabinet with the dehumidification function, when a condensation pipe is used for a long time, an L-shaped sliding block is pushed to move, so that the L-shaped sliding block can drive a moving column to move, an extrusion rod can move in a spiral groove, a rotating sleeve can be driven to rotate, and a scraping plate is attached to the outer wall of the condensation pipe to rotate; sediments such as water scale attached to the outer wall of the condensation pipe can be scraped off through the scraping plate, the condensation effect of the condensation pipe is improved, and subsequent moisture drying is facilitated.

The present invention relates to the technical field of distribution cabinets, and discloses an anti-electric shock outdoor distribution cabinet, including a distribution cabinet, in which a power-off switch is installed. The distribution cabinet further includes: a wiring groove opened on the power-off switch, and a wiring post is arranged in the wiring groove; an extension part fixed below the power-off switch and corresponding to the wiring groove, an insulating strip is installed on the extension part, a power connection fork is rotatably installed at the top of the insulating strip through a torsion spring, and the torsion spring applies a torsional force to the power connection fork to move it away from the wiring post, and a wire is threaded through the power connection fork and extends from its end, and an insulating wrapping layer is provided at the top of the insulating strip away from the wiring post. When the power-off switch cuts off the power, the present invention can not only disconnect the wire from the wiring post, but also insulate and wrap the exposed part of the wire, avoiding the risk of electric shock to the maintenance personnel during subsequent maintenance caused by the residual current that the exposed wire may carry, and reducing potential safety hazards.

The utility model provides a three-position switch and a ring main unit, the three-position switch comprises a first fixed seat and a plurality of grounding contacts, each grounding contact corresponds to one phase in a power supply network, and the plurality of grounding contacts are arranged on the first fixed seat; the grounding shielding base is arranged on the first fixing base, the grounding shielding base is configured to be an integrally-formed metal piece, a plurality of open holes are formed in the grounding shielding base, and the grounding contacts are exposed out of the corresponding open holes; each second fixing seat is correspondingly provided with an isolation static contact. And a plurality of moving contacts are arranged on the third fixed seat at intervals, and the moving contacts can rotate relative to the third fixed seat so as to be electrically connected with the grounding contact or the isolation static contact selectively. By optimizing the electric field of the three-position switch, the three-position switch can have a better insulation level, and the overall size of the three-position switch is reduced. Furthermore, the three-position switch can be applied to a small-size ring main unit with space limitation and higher insulation requirements.

The invention discloses a low-voltage power distribution cabinet with a protection mechanism inside, and relates to the technical field of power distribution cabinets. A low-voltage power distribution cabinet internally provided with a protection mechanism comprises a power distribution cabinet body, the inner side of the power distribution cabinet body is fixedly connected with a plurality of relays, the upper side of the power distribution cabinet body is fixedly connected with a motor, the inner side of the power distribution cabinet body is provided with a protection unit, the front side of the power distribution cabinet body is provided with a cabinet door, and the protection unit comprises a fixing block. The fixing blocks are fixedly connected to the left and right inner walls of the power distribution cabinet body, and the outer sides of the fixing blocks on the left and right sides are rotatably connected with rotating rods. According to the low-voltage power distribution cabinet internally provided with the protection mechanism, by arranging the power distribution cabinet body, the relay, the fixed block, the rotating rod, the protection plates, the first toothed plate, the second toothed plate and the moving frame, the protection plates on the two sides can be conveniently controlled to rotate, the relay can be conveniently protected by the protection plates, the influence of external impact on the relay is reduced, and mistaken touch is prevented.

A wind pressure type shutter includes first and second rotation shafts, and first and second flaps. The first flap rotatably hung on the first rotation shaft closes a flow path in a vertical position and opens the flow path in a position rotated from the vertical position. The second flap rotatably attached to the second rotation shaft closes the flow path and prevents the rotation of the first flap by an upstream-side end portion of the second flap in a horizontal position, and opens the flow path in a position rotated from the horizontal position. When a negative pressure is generated downstream of the second flap, the second flap rotates to open the flow path and the upstream-side end portion is disengaged from the first flap, so that the first flap rotates toward a downstream side to open the flow path.

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 invention relates to a power feed module (200) for a contact protection system for contact-safe contacting of busbars (100), wherein the power feed module (200) has a base (210) made of electrically insulating material with receptacles (220) for busbars (100) and a cover (230) made of electrically insulating material covering the base (210), characterized in that the receptacles (220) each have a contact element (222), wherein the contact elements (222) are designed to electrically contact busbars (100) inserted into the receptacles (210) at their outer circumference, wherein the contact elements (222) are each electrically connected to a terminal (232) for an electrical conductor. The invention further relates to a modular contact protection system (1).

The present invention relates to the field of grounding trolley devices, and discloses an electrical testing grounding trolley device for medium-voltage switchgear, comprising a trolley frame, a support frame is fixed to the front side of the trolley frame, a U-shaped frame is connected to the top surface of the support frame by bolts, a plurality of support insulator sensors are fixed to the front side of the U-shaped frame, a plurality of support insulator sensors are detachably provided with contact arms on the front sides, a first grounding busbar is connected to two second grounding busbars by bolts on the front side, and a third grounding busbar is connected to the front side of the two second grounding busbars by bolts. In the present invention, the device has integrated electrical testing and grounding functions, reduces the operation steps and potential risk points, reduces the risk of electric shock to operators, facilitates users to safely and reliably operate and realize busbar electrical testing and grounding, and makes the live state of the busbar clear at a glance through the intuitive display of the electric display device, effectively avoiding safety accidents caused by misjudgment.

The invention discloses an electronic component optimization method of an air-insulated switch cabinet and the air-insulated switch cabinet, and relates to the technical field of air-insulated switch cabinet optimizing.Structural parameters of a contact box used by an existing air-insulated switch cabinet are optimized in a simulation calculation mode, and the structural parameters of the contact box used by the existing air-insulated switch cabinet are optimized. The optimized contact box is subjected to an insulation test, and electronic elements such as an insulator, a circuit breaker, a current transformer, a voltage transformer and a lightning arrester are optimized, so that the safe operation of the air-insulated switch cabinet can be ensured to the greatest extent, the safe and stable operation of a power grid is further ensured, and the service life of the air-insulated switch cabinet is prolonged. The air-insulated switch cabinets produced by different manufacturers can be universally and interchangeably used within a certain range and a certain period at the same time, and the operation and maintenance convenience of the air-insulated switch cabinets is improved.

The embodiment of the invention relates to a three-position switch and a corresponding switch cabinet. The three-position switch generally comprises an isolating contact, a grounding contact and a moving contact. The moving contact includes a first end and a second end. The first end is connected with the base, the second end is opposite to the first end along the longitudinal extension direction of the moving contact, rotates around the first end along with the moving contact, and is switched among a switching-on station in contact with the isolating contact, a grounding station in contact with the grounding contact and a switching-off station out of contact with both the isolating contact and the grounding contact. The second end is provided with a first protrusion and an arc-resistant component. The first protrusion protrudes from the main surface of the moving contact and makes contact with the isolation contact when the second end is located at the switching-on station. An arc resistant member is disposed proximate the first protrusion and configured to withstand an arc when the first protrusion is proximate the ground contact. According to the embodiment of the invention, the moving contact is correspondingly modified, so that the consistency of the contact resistance before and after the experiment can be ensured.

The invention discloses an anti-electric shock protection structure for a factory power distribution cabinet, and belongs to the technical field of electrical equipment safety protection. The normally-closed structure comprises an iron block which is fixedly installed on the surface of the hinged side, away from the power distribution cabinet body, of the cabinet door, a strong magnet which is arranged on one side of the power distribution cabinet body and is used for being magnetically attracted with the iron block to lock the cabinet door, and an overturning assembly which is arranged on the cabinet door and is connected with the strong magnet. According to the anti-electric shock protection structure for the factory power distribution cabinet, through the combined design of the normally-closed structure, the transmission structure and the L-shaped pull rod, the operation requirements of normally-closed protection of the power distribution cabinet in daily life and non-power-off unlocking during normal use can be met, the cabinet door can be unlocked during maintenance, and the L-shaped pull rod pulls a main gate to be powered off through synchronous linkage; the electric shock risk that daily irrelevant personnel open the cabinet door by mistake is avoided, the potential safety hazard of hot-line operation during maintenance is reduced, and the electrical safety protection capability of the factory power distribution cabinet in daily use and maintenance is improved.

The invention provides an anti-misoperation safety protection device for a low-voltage circuit breaker, which relates to the technical field of power distribution cabinets and comprises a low-voltage power distribution cabinet, a circuit breaker is mounted on a back plate of the low-voltage power distribution cabinet, a fixing part is mounted on the side wall of the low-voltage power distribution cabinet, a sliding rod is fixedly connected to one side of the fixing part, and a wiring bar is slidably mounted on the outer wall of the sliding rod. The low-voltage power distribution cabinet comprises a low-voltage power distribution cabinet body, a power connection wire bar and a fixing part, the power connection wire bar is installed on the side wall of the low-voltage power distribution cabinet body and elastically matched with the fixing part, and the power connection wire bar is clamped and matched with the power connection wire bar lock catch assembly through a clamping rod fixedly connected with the side wall of the low-voltage power distribution cabinet body. The clamping rod on the wiring bar is inserted into the bar lock catch assembly for insertion and fixation, so that the power-on of the circuit breaker is limited, and no danger is generated even if mistaken touch occurs; the clamping rod abuts against the lock catch to rotate, and the abutting piece abuts against the lock catch under the action of the second torsion spring, so that rotation of the lock catch is limited.

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 sealing switch cabinet isolation circuit breaker grounding device, and belongs to the technical field of grounding devices, the sealing switch cabinet isolation circuit breaker grounding device comprises a switch cabinet, and an isolation circuit breaker grounding body, an interlocking mechanism, a circuit breaker operation mechanism and a grounding operation mechanism arranged in the switch cabinet, and also comprises a buffer arc extinguishing assembly and a protection cleaning assembly; blowing and sucking actions of the air bag during switching-on and switching-off are matched with cleaning actions of the cleaning block, the air bag blows out airflow to cut off an arc path during switching-on, and the cleaning block cleans in advance to reduce the possibility of arc generation. During opening, the air bag sucks air and is lengthened to extinguish the arc, the cleaning block cleans again to prevent the arc from reignition, the arc extinguishing capability is greatly improved, and the contact ablation and equipment damage risks are reduced; the buffering function of the arc-shaped block and the air bag and the buffering function of the base plate form a multi-stage buffering mechanism, and abrasion of the contact and equipment parts is reduced; the blowing and suction treatment of the air bag and the dual cleaning effect of the cleaning block enable the contact area of the contact to be cleaner, and the contact resistance is effectively reduced.

The utility model provides a base assembly and a drawer type circuit breaker, and belongs to the technical field of electrical equipment. The base assembly comprises a drawer base and a first baffle. The drawer base comprises an upper mounting cavity and a lower mounting cavity, the upper mounting cavity and the lower mounting cavity are both used for mounting the electric connection structure, and a plurality of first air holes penetrating through the drawer base are formed in the cavity wall of the upper mounting cavity and the cavity wall of the lower mounting cavity. The first baffle is connected with the drawer base and located between the upper mounting cavity and the lower mounting cavity. The first baffle is provided with a gas exchange groove in the arrangement direction of the upper mounting cavity and the lower mounting cavity, and the gas exchange groove communicates with the upper mounting cavity and the lower mounting cavity. The drawer-type circuit breaker is provided with the plurality of first air holes, air circulation between the inside and the outside of the drawer-type circuit breaker is improved, and air circulation among the plurality of mounting cavities is improved by arranging the plurality of air exchange grooves. Therefore, heat dissipation in the drawer type circuit breaker can be improved.

The utility model discloses an anti-electric shock power distribution cabinet, which relates to the technical field of power distribution cabinets, and comprises an outer cabinet and a cable, an inner cabinet is arranged in the outer cabinet, a plurality of electronic components are fixedly installed in the inner cabinet, an auxiliary assembly for plugging and unplugging the cable is arranged in the inner cabinet, the auxiliary assembly comprises a clamping seat, and the clamping seat is fixedly connected with the outer cabinet. And the clamping seat is slidably arranged on the back of the inner cabinet through a driving unit, and the cable part is clamped on the clamping seat. According to the anti-electric-shock power distribution cabinet provided by the utility model, by using the auxiliary assembly arranged on the inner cabinet, before electronic elements in the inner cabinet need to be overhauled, a cable on the clamping seat can be controlled to slide by means of the driving unit, so that the effect of pulling out a connector of the cable and the inner cabinet is achieved; therefore, the situation that a power supply is suddenly switched on due to misoperation or equipment failure in the maintenance process, and then a worker is subjected to electric shock is avoided as much as possible.

The utility model relates to a drawer cabinet contact box, relates to contact box technical field, including cabinet shell, fixing mechanism, drawer cabinet, cabinet body and contact box, the cabinet shell is provided with switch cabin, the fixing mechanism includes locking assembly, the locking assembly includes slide rail, second cylinder and limit block, the cabinet body is in sliding connection in the switch cabin, and the limit block is in sliding connection in the switch cabin. The drawer cabinet is arranged on the cabinet body, the contact box is arranged on the cabinet body, the sliding rail is arranged on the cabinet body, a plurality of limiting holes are formed in the sliding rail, a sliding groove is formed in the cabinet shell, the second air cylinder is arranged on the cabinet shell through the sliding groove, and the limiting block is arranged on an output shaft of the second air cylinder. According to the utility model, by adopting the locking assembly in the fixing mechanism, the problem that in the process of maintaining the contact box by the drawer cabinet contact box, the drawer cabinet is in a movable switch state, so that maintenance personnel cannot conveniently maintain the contact box is solved.

The utility model discloses an insulating separator plate of electrical equipment, which relates to the field of insulating separator plates, and comprises an insulating plate body, four corners of the upper surface of the insulating plate body are provided with mounting holes, the upper part of the insulating plate body is fixedly provided with a slide rail, the center position of the slide rail is provided with a slide groove, and the slide groove is internally provided with a separator plate structure. The number of the sliding rails is three sets, each set comprises four sliding rails, each set of sliding rails are arranged in a rectangular shape, and the three sets of sliding rails are gradually reduced from outside to inside in sequence. The insulating partition plate of the electrical equipment can be used for installing or adjusting a plurality of partition plate structures, so that the partition plate structures can be conveniently used for insulating and blocking parallel or parallel electrical equipment wire harnesses and instruments after the insulating plate body performs insulating work on a certain plane, and the functionality of the insulating partition plate is improved.

The utility model discloses a kind of secondary safety protection devices for transformer substation, including safety protection device, the safety protection device includes operation panel safety protection, terminal row safety protection, air switch safety protection, presser plate safety protection and conversion handle safety protection, the operation panel safety protection includes first lock catch, operating fully-enclosed panel and first maintenance isolation lock, the operation panel safety protection is fixed operating fully-enclosed panel by first lock catch, the first maintenance isolation lock is installed on first lock catch.The utility model adopts more advanced, reliable technical means, to ensure the safety of secondary circuit in construction, technical improvement, extension and routine maintenance process, can realize the effective isolation to high-risk circuit, prevent construction personnel from mistaken touch, simultaneously should have good durability and stability, ensure that protective effect is lasting and effective.

The invention discloses an electric shock protection method and device for an electric TN system, and relates to the field of electrical protection, the electric shock protection device comprises installation grooves formed in the two sides of the lower end of a cover plate and used for fixing an air bag, and one-way valve nozzles communicating with the air bag are fixed to the positions, corresponding to the installation grooves, of the upper end of the cover plate in a penetrating mode; upper sealing strips which abut against the outer half shell in a sealing mode are embedded in the positions, close to side lines, of the two sides of the upper end of the cover plate, and the air bag expands to push the cover plate to longitudinally move so that the upper sealing strips abut against the side walls of the outer half shell; the sealing assembly is used for sealing the periphery of the PE mother board and dividing the PE mother board into a plurality of blocks, and meanwhile the interior of the outer half shell is divided into a plurality of independent sealing spaces. By arranging the sealing assemblies, the interior of the outer half shell can be divided into a plurality of independent spaces, even if one space is corroded due to water leakage, other spaces cannot be affected, then the protection effect of the PE mother board is improved, and meanwhile the situation that the PE mother board is corroded, so that resistance is increased, and the safety protection performance is affected is avoided.

The utility model relates to the technical field of insulating parts, and particularly discloses a plastic insulating part for power distribution switch control equipment, which comprises an insulating plate, a mounting groove is formed in the insulating plate, a plurality of movable blocks are arranged in the mounting groove in a sliding manner, and the two sides of the insulating plate are connected with the mounting blocks. A plurality of mounting boxes are arranged on one sides of the two mounting blocks in a sliding mode, fixing rods are arranged in the mounting boxes in a sliding mode, the fixing rods are connected with the movable blocks in a clamped mode, and mounting holes are formed in the surfaces of the movable blocks. When a worker loosens the fixing rod, the fixing rod and the fixing hole can be automatically clamped by the spring due to the internal elastic force of the spring, so that the electrical element is firmly fixed on the insulating plate and is stably fixed, the electrical element is prevented from moving or loosening in the subsequent use process, the normal work of other elements is not interfered, and the service life of the electrical element is prolonged. The design greatly improves the installation stability and the use reliability of the device.

This utility model relates to an electric shock protection safety isolation distribution box, belonging to the technical field of distribution boxes. The electric shock protection safety isolation distribution box includes a distribution box, an air switch installed on the inner wall of the distribution box, an isolation transformer installed on the inner wall of the distribution box, a fixing component installed at the bottom of the isolation transformer, and a branch sealing component installed on the inner wall of the distribution box. This utility model allows adjustment of the distance between two L-shaped brackets by unscrewing a screw on one side and pulling a slider. The slider's sliding distance is adjusted according to the bottom hole position of the replacement isolation transformer. The screws are then tightened to fix the L-shaped brackets to the inner wall of the distribution box. Finally, the new isolation transformer is installed in the corresponding square slot. This improves versatility and flexibility, eliminating the need for custom-made enclosures for different transformers, reducing equipment replacement or upgrade costs, adapting to different power and model requirements, and broadening the applicable scenarios.

The utility model discloses a headstock end cover for power distribution control equipment, which comprises an end cover, an articulated shaft mounting seat is arranged at one end of the inner side of the end cover, an articulated shaft is vertically and slidably mounted on the articulated shaft mounting seat in a penetrating manner, and a telescopic control mechanism is connected to one end of the articulated shaft and is used for extending and retracting the articulated shaft; a lock catch mechanism is arranged at the other end of the inner side of the end cover and is used for closing and limiting the end cover; an intelligent control panel and an emergency button are arranged on the outer side of the end cover; the emergency button is electrically connected with the intelligent control panel, and the intelligent control panel is electrically connected with the telescopic control mechanism and the lock catch mechanism. A power connector is arranged on the end cover and used for being connected with a power source to supply power to the intelligent control panel, the telescopic control mechanism and the lock catch mechanism. By arranging the emergency button, the telescopic control mechanism and the lock catch mechanism can be quickly operated by one key to be retracted through an instruction signal under an emergency condition, so that the limitation of the degree of freedom of the end cover is relieved, and the end cover can be disassembled more quickly.

The invention relates to the field of non-insulated conductors or electric conductors with the shape as the characteristic, in particular to a copper bar voltage-sharing device and a switch cabinet. The copper bar voltage-sharing device comprises a spiral spring serving as a spring shielding case, an inner hole of the spiral spring forms a shielding cavity for a copper bar to penetrate through, a gap between spring coils of the spiral spring forms a heat dissipation channel, and a limiting block which is used for being supported between the spring shielding case and the copper bar to limit the distance between the spring shielding case and the copper bar is arranged for the spring shielding case. The voltage-sharing end sockets are arranged at the two ends of the spring shielding case to shield the connection points of the copper bars and the corresponding conductors, and the voltage-sharing end sockets are provided with conductor insertion ports for insertion of the conductors to be connected with the copper bars. The overall insulation of the switch cabinet can be improved while the overall size of the switch cabinet is not increased.

The utility model discloses a busbar capable of electrically and flexibly plugging a miniature circuit breaker in a distribution box, which comprises a back plate and a combiner box body, the combiner box body is a rectangular body, a knife switch is arranged in the combiner box body, the back surface of the combiner box body is fixed on the back plate, a first connecting end connected with a main switch is led out from the top of the combiner box body, and a second connecting end connected with the main switch is led out from the top of the combiner box body. The left side and the right side of the combiner box body are respectively provided with a plurality of circuit breaker plugging positions which are arranged in sequence, each circuit breaker plugging position comprises a temporary fixing position, an anti-electric shock switch and a second connecting end connected with the wiring end of the miniature circuit breaker, the second connecting ends are located on the side face of the combiner box body, and the anti-electric shock switches are connected with knife switches in the combiner box body. According to the utility model, only the capacity of equipment in an area needs to be roughly calculated, the phase number and the current size of a switch do not need to be considered, and the design difficulty of a designer is greatly reduced; when the machine table moves, the switch can be pulled out and reused, so that waste is avoided, and the cost is saved; the switch can be plugged under the condition of uninterruptible power, an operation area is not electrified, and the safety is high; the switchboard does not need to reserve a switch, so that waste is avoided, and cost is saved; product reliability is high and installation is simple.

This application relates to the technical field of switch cabinets, and discloses a switch cabinet capable of quickly grounding, including a cabinet body. A placement groove is formed in the cabinet body, and a grounding head is arranged in the placement groove. A transfer piece is arranged on the grounding head, and the transfer piece extends in the vertical direction and is used for connecting a plug. When the plug is installed on the transfer piece, the plug can be located in the placement groove. In this application, the transfer piece is arranged in the placement groove and extends in the vertical direction, enabling the plug to be located in the placement groove, reducing the risk of the plug protruding from the placement groove and being accidentally touched, and making the switch cabinet safer when grounding.

The utility model provides a wire changing insulation baffle plate. The wire changing insulation baffle plate comprises an adjustable telescopic pipe, wherein an insulation plate and a partition plate are arranged on the telescopic pipe; the plurality of assembly blocks are used for fixing the insulating plate and the partition plate, the plurality of assembly blocks are respectively arranged on the insulating plate and the partition plate, a plurality of bolts used for limiting are arranged on the plurality of assembly blocks, and the plurality of bolts are respectively in threaded connection with the telescopic pipe, the insulating plate and the partition plate; and the grip is used for gripping and is fixedly arranged on the telescopic pipe. The wire changing insulation baffle plate provided by the utility model has a conventional insulation protection function, and also has the advantages of convenient operation, strong adaptability, good stability and the like.

The utility model discloses an anti-electric shock isolation device for maintenance of a single drawer device for power supply of an MNS power distribution cabinet, and the isolation device comprises an insulating baffle A, a movable sliding rail is disposed above the insulating baffle A, the movable sliding rail is connected with the insulating baffle B through a rotating shaft of the insulating baffle B, and the upper part of the insulating baffle A is connected with an insulating telescopic rod A through a 180-degree rotating shaft A; the top of the insulating telescopic rod A is connected with an insulating baffle C; and the bottom of the insulating baffle A is connected with an insulating telescopic rod B through a 180-degree rotating shaft B. According to the utility model, the isolation device is temporarily added to equipment needing to be overhauled behind the MNS switch cabinet, so that the safety of maintenance personnel is ensured.