28results about How to "Achieve interlock" patented technology

The utility model relates to the technical field of connector interlocking, and particularly discloses a novel new energy automobile high-voltage connector interlocking system which comprises a compression molding shell used for wrapping a cable; the pressing core is fixedly connected with the compression molding shell and is used for wrapping a cable and realizing cable routing; the rotary fixing assembly is connected with the pressing core and is used for realizing rotary locking after being inserted into the connector; the terminal locking piece is inserted into a connecting hole of the connector and is preliminarily connected with the connector; the plurality of fixing assemblies are arranged on the surface of the terminal locking piece and are locked up and down after being inserted into the connector; and the contact terminal is connected with the connector to realize signal transmission, and the problem that a traditional interlocking structure is easy to fall off after being connected with the high-voltage connector is solved.

A drawer interlocking device with the function of interlocking two sets of cabinet bodies comprises a first lock rod component and a second lock rod component, the first lock rod component is arranged on the first side of the first cabinet body in an up-down sliding mode, the second lock rod component is arranged on the second side of the second cabinet body in an up-down sliding mode, and a connecting part is arranged between the first lock rod component and the second lock rod component. The connecting part is arranged on the first side of the first cabinet body and the second side of the second cabinet body in a penetrating mode, the first lock rod component and the second lock rod component are connected through the connecting part, the first lock rod component is in linkage with a first drawer on the first cabinet body, and the second lock rod component is in linkage with a second drawer on the second cabinet body. According to the drawer interlocking device, the first locking rod component and the second locking rod component are arranged, the first locking rod component and the second locking rod component are connected through the connecting part, when one drawer in the two cabinet bodies is opened, the other drawers cannot be opened, interlocking of all the drawers in the two cabinet bodies is achieved, and practicability is high.

The invention relates to a chain type kinetic energy striking device with high hit probability and low incidental damage, belongs to the technical field of ammunition, and solves the problems that a striking device in the prior art cannot effectively control the damage range and degree and has no differential striking outside a target range. The device comprises a housing and a striking body, the housing is connected with the striking body, and the striking body strikes a target by utilizing kinetic energy; the striking body comprises a rotating unit, a guiding unit and a kinetic energy unit, the guiding unit is connected with the rotating unit, the kinetic energy unit can be connected with the rotating unit, and the guiding unit is used for keeping the shape of the striking body. The multiple kinetic energy units form the striking face, the striking range of the striking device is a columnar area where the striking face skims over, the area outside the columnar area is completely free of killing, and compared with the spherical striking range of a fragment striking device in the prior art, the striking device can not depend on the probability striking mode of fragments, and the striking range of the striking device is larger than the spherical striking range of the fragment striking device. And the striking range is controllable.

This utility model relates to the field of livestock and poultry isolation and protection fence technology, and discloses a foldable livestock and poultry isolation and protection fence for livestock farms, including fence one and fence two. This foldable livestock and poultry isolation and protection fence for livestock farms, through a set stabilizing component, allows the cylinder and connecting block to rotate relative to each other when fence one or fence two is flipped. This pushes the locking plate and stabilizing block to move against spring one, causing the short rod and ring to rotate, achieving synchronous radial movement of all components. When the locking plate is parallel to the contact groove, spring one resets, which in turn drives all mechanisms to reset, allowing the locking plate to enter the contact groove. After adjusting the angle, pulling the pull plate disengages the insert rod, and rotating the connecting plate and the rotating ring causes the through hole and the sliding rod to interlock. The inner wall of the rotating ring restricts the movement of the sliding rod, achieving interlocking of the fence. When the connecting plate rotates, the movable column, under the action of spring two, abuts against or engages with the stabilizing groove, preventing self-rotation, thus achieving folding. The angle can be adjusted to a suitable level for convenient use.

The utility model relates to a tool box system. The tool box system comprises a first tool box and a second tool box, wherein the first tool box and the second tool box are stacked in the longitudinal direction. The first tool box comprises a first base and a first upper cover which are hinged, the first upper cover is provided with a first locking piece, the first base is provided with a first latch, and the first upper cover further comprises a first containing part. The second tool box comprises a second base and a second upper cover which are hinged to each other, and the second base is provided with a second locking piece. When the second tool box is stacked to the first tool box, the second locking piece of the second tool box is placed in the first containing part of the first tool box, and the first latch of the first tool box can be connected with the first locking piece of the first upper cover and the second locking piece of the second base at the same time so that self-locking of the first tool box can be achieved at the same time. And the first tool box and the second tool box are mutually locked.

The utility model discloses a kind of gem inlay structure and puncture ear stud, gem inlay structure includes metal base, first gem and several second gems, the metal base includes first inlay seat and several second inlay seats, several second inlay seats are annular array distribution along the center of first inlay seat, first gem is inlaid in the top of first inlay seat, first inlay seat is higher than second inlay seat, the top of second inlay seat is provided with inlay claw, the inlay claw and first inlay seat hold second gem;Puncture ear stud includes connecting needle, stem and the stopper connected in one end of stem, the connecting needle is arranged in the bottom of first inlay seat, the connecting needle is provided with outer thread, the other end of stem is provided with internal thread.The utility model can increase the stability of inlay, reduce the number of inlay claw, reduce the shielding rate of incident light, improve the simplicity and aesthetic property of jewelry.

This utility model relates to a dual power supply switching circuit and a dual power supply circuit, belonging to the field of high-voltage switch control technology. The switching circuit includes: a coil of a first contactor and a normally closed contact of a second contactor connected in series to the main power supply line between the main power supply and the electrical load; a normally open contact of the first contactor connected in series on the main power supply line; a coil of the second contactor and a normally open contact of a time relay connected in series to the backup power supply line between the backup power supply and the electrical load; a normally open contact of the second contactor connected in series on the backup power supply line; a coil of an undervoltage relay connected to the main power supply line; and a normally closed contact of the undervoltage relay and a coil of the time relay connected in series to the backup power supply line. This utility model, by using an undervoltage relay and a time relay, reduces frequent switching between main and backup power supplies, and has a simple circuit structure, low cost, and is easy to maintain.

The utility model discloses a double-color injection molding plaque with high bonding strength, which belongs to the technical field of injection molding plaques, and comprises a first plaque and a second plaque which are arranged at an interval, a first enclosure is fixedly arranged on the first plaque, a second enclosure is fixedly arranged on the second plaque, the first enclosure is consistent with the second enclosure, and the second enclosure is consistent with the first enclosure. The high-bonding-strength double-shot molding decoration plate further comprises a plurality of primary lock assemblies arranged on the first fence and a plurality of secondary lock assemblies arranged on the second fence. The secondary lock assembly and the primary lock assembly are matched for use, when the injection molding decoration plate is mounted or dismounted, a strong magnet is used for assisting operation, the metal insertion rod is controlled to move by magnetic force of the strong magnet, so that the secondary lock assembly is conveniently inserted into the primary lock assembly, then the metal insertion rod is inserted into the through groove, and interlocking of the secondary lock assembly and the primary lock assembly is achieved; on the premise that the connecting strength is guaranteed, the decoration plate can be conveniently disassembled without damage during later maintenance, and the reusability of the decoration plate is achieved.

The invention provides a connecting assembly and a tool box, the connecting assembly is used for connecting a supporting seat and a box body, the connecting assembly comprises a clamping structure, the clamping structure comprises a first clamping part arranged on the box body and a second clamping part arranged on the supporting seat, and when the first clamping part and the second clamping part are clamped, the supporting seat and the box body are limited to move in the separating direction; the lock catch structure has a locking state and an unlocking state; when the lock catch structure is in a locked state, the first clamping part and the second clamping part are prevented from moving in the staggered direction. And when the lock catch structure is in an unlocking state, the first clamping part and the second clamping part are allowed to act along the dislocation direction. Therefore, during use, when the clamping structure is locked, the lock catch structure can be synchronously locked, or when the clamping structure is unlocked, the lock catch structure can be synchronously unlocked, the box body and the supporting seat are convenient to disassemble and assemble, the operation is simple, and time and labor are saved.

The embodiment of the utility model provides an interlocking structure, an interlocking module and an energy storage power supply. The interlocking structure comprises a first locking piece, a second locking piece and a driving piece, the first locking piece is suitable for being arranged on a module; the second locking piece is suitable for being arranged on the other module and can be in lap joint with the first locking piece so as to achieve interlocking of the two modules. The driving piece is connected with the first locking piece and used for driving the first locking piece to move in the direction away from the second locking piece so that lap joint of the second locking piece and the first locking piece can be removed. For an energy storage power supply, when the two stacked adjacent battery boxes are provided with the first locking piece and the second locking piece respectively, interlocking or unlocking of the two adjacent battery boxes can be achieved through lap joint or lap joint release of the first locking piece and the second locking piece, and the connection mode is simple, convenient and fast; and the overall structural strength and the assembly or disassembly efficiency of the energy storage battery can be improved.

The invention relates to the technical field of slope stabilization, and discloses a unilateral component and a slope protection combination.The unilateral component comprises a component body, connecting parts are arranged on the component body, and the connecting parts comprise the first connecting part, the second connecting part, the third connecting part and the fourth connecting part; the component body is provided with an outer side face and two connecting end faces, the first connecting part and the second connecting part are arranged on the outer side face of the component body, the third connecting part is arranged on one connecting end face of the component body, and the fourth connecting part is arranged on the other connecting end face of the component body; partial connecting parts of the four sets of adjacent component bodies are matched with one another and can be spliced into a structure with a through hole. Compared with an existing bilateral structure formed by splicing hollow hexagonal blocks, the unilateral component and slope protection combination has the advantages that materials can be saved by about 30%; the connecting parts of the four adjacent single-side components are matched with one another, interlocking is achieved, and therefore the slope laid by the single-side components is more stable.

The invention relates to a three-position clutch switching device which comprises an input shaft, clutch outer teeth, a manual chain wheel, clutch inner teeth, a clutch sleeve, a pneumatic chain wheel, a seat frame and a switching shifting mechanism. The input shaft is fixedly connected with clutch outer teeth, two sides of the clutch outer teeth are respectively connected with a manual chain wheel and a pneumatic chain wheel through bearings, clutch outer teeth are externally provided with clutch inner teeth and a clutch sleeve, one ends of the manual chain wheel and the pneumatic chain wheel are provided with chain wheels, and the other ends of the manual chain wheel and the pneumatic chain wheel are provided with external splines matched with the clutch inner teeth; and a three-position clutch switching shifting mechanism is arranged between the clutch sleeve and the seat frame. The clutch switching device for switching the three kinds of power is used for switching the three kinds of power of a special gate device. The special gate device is driven by the motor normally, and the special gate device can be opened and closed emergently by a manual or pneumatic emergency operating mechanism in case of power failure, so that the safety of the special gate device is improved, the structure is compact, and the operation is simple.

The invention discloses a high-precision continuous quantitative glue discharge metering pump, which comprises a cylinder body, a metering rod, a pump body, a pump body and a pump body, and is characterized in that the cylinder body is internally provided with the metering rod; the switch valve is fixedly mounted on the cylinder body; wherein an inlet and an outlet are formed in the cylinder body, the switch valve comprises a switch valve air cylinder, a switch valve piston rod and an electromagnetic valve assembly, the switch valve piston rod is arranged in the switch valve air cylinder, a plugging part is arranged at the bottom of the switch valve piston rod, a lower channel is formed between the plugging part and the inlet, and an upper channel is formed between the plugging part and the outlet; the electromagnetic valve assembly is fixedly installed on the switch valve air cylinder. Compared with the prior art, the influence of pressure difference fluctuation of an inlet of an existing metering pump on positioning glue discharging is avoided.

The invention discloses an anti-falling screw assembly and a using method thereof.The anti-falling screw assembly comprises a screw assembly body and an anti-falling assembly body, a connecting through hole is formed in the center of the anti-falling assembly body, the screw assembly body penetrates through the connecting through hole of the anti-falling assembly body in a sliding mode to be connected with the anti-falling assembly body in a sliding mode, and the screw assembly body comprises a screw head and a threaded screw rod; the nail head and the threaded nail rod are integrally formed, a limiting groove is formed in the connecting face of the nail head and the threaded nail rod, ratchet teeth are fixedly arranged on the inner ring face of the limiting groove, a connecting boss is fixedly arranged on the upper end face of the anti-falling assembly, and symmetrical elastic limiting blocks are fixedly arranged on the side end face of the connecting boss. The anti-falling assembly is preset in the screw locking hole, and when the anti-falling assembly is locked through the screw assembly, through cooperation of the ratchet teeth and the elastic limiting block, overturning prevention of the screw assembly is achieved, and it is guaranteed that the screw cannot fall off.

The utility model discloses a novel reliable fixture remodeling interlocking device, and belongs to the technical field of fixture remodeling. A plurality of part placing positions are arranged on the mounting support, each part placing position is provided with a proximity sensor used for detecting whether parts exist or not, the proximity sensors are electrically connected with a machine tool controller, limiting columns are arranged on the part placing positions, limiting partition plates are arranged between the adjacent part placing positions, and mistaken mounting prevention units are further arranged on the part placing positions. The interlocking device has the advantages that the model of the remodeling part is detected through the sensor and the machine tool controller, the accuracy is high, and interlocking between the remodeling part and the machine tool is achieved; and due to the arrangement of the anti-mistaken-installation unit, the remodeling parts cannot be placed in place after being placed mistakenly, the remodeling parts can be found more easily and manually, the error rate is reduced, and the finished product rate of workpiece machining is increased.

The invention discloses a locomotive fireless return control circuit and a vehicle, and is applied to the field of rail transit. According to the principle of the locomotive fireless loopback control circuit, when the first end of a fireless selection switch and the second end of the fireless selection switch are connected, a brake release circuit and an emergency control circuit are connected into the locomotive fireless loopback control circuit through a second contact of a parking brake release key and a storage battery output contactor; when the third end of the fireless selection switch and the fourth end of the fireless selection switch are conducted, the brake release circuit is connected to the locomotive fireless return control circuit through a first contact of the parking brake release key; and the connection between the emergency control circuit and the locomotive fireless loopback control circuit is cut off through the emergency bypass relay and the storage battery output contactor. Therefore, the fireless return process of the driver and the conductor is simplified, the driver and the conductor do not need to get off a vehicle body to handle a hand-pulled relief ring, operation is easy and safe, working efficiency is improved, and safety of the vehicle during running is improved.

This application discloses a negative pressure adsorption system, including an air supply pipeline, a negative pressure pipeline, a positive pressure pipeline, and a gas-liquid separation device. One end of the air supply pipeline is used to connect to compressed air; one end of the negative pressure pipeline is connected to the other end of the air supply pipeline, and the other end is used to connect to the adsorption device; one end of the positive pressure pipeline is connected to the other end of the air supply pipeline, and the other end is connected to the other end of the negative pressure pipeline; the gas-liquid separation device includes a gas-liquid separation tank, a storage tank, a first drain pipe, a second drain pipe, a first drain valve, and a second drain valve. The gas-liquid separation tank has a separation chamber and a first connection port and a second connection port connected to the separation chamber. The first connection port is connected to the other end of the negative pressure pipeline, and the second connection port is used to connect to the adsorption device; the first drain valve is disposed on the first drain pipe; the second drain valve is disposed on the second drain pipe; to reduce the probability of liquid entering the negative pressure pipeline, thereby ensuring that the adsorption device can adsorb the workpiece.

The utility model relates to a high-speed portable power supply system switch, and aims to solve the problems that the current high-speed portable power supply system switch moves in a charging process, so that a plug inserted into a charging interface on the switch is easy to be pulled by external force and is separated from or even damaged to cause charging interruption, and the like. The device comprises a storage box, a rectangular groove is formed in the middle of the bottom of one side of the storage box, an interface assembly for insertion of a plug is fixedly installed in the rectangular groove, the interface assembly comprises a plug board, and a plurality of plug grooves are formed in one side of the plug board at equal intervals; according to the utility model, the wiring harness on the plug can be limited, the pull force can be absorbed, the problem that the plug is separated from the charging interface and even the charging interface is damaged due to the pulling of an external force can be avoided, and the safety of the charging interface is improved. And the charging stability and the charging effect on the equipment are ensured.

The invention relates to a self-locking type water braid for a drill rod and a using method of the water braid, and belongs to the technical field of coal mines. Comprising a water braid body and a self-resetting ejector rod located at the front end of the water braid. The water braid body is installed on the water braid shell through the bearing and the pressing cover, the water braid shell can rotate around the water braid inner sleeve, water flow can pass through an inner hole of the water braid shell, and therefore water is supplied to a drill rod through the water braid shell. The self-resetting ejector rod is installed in the water braid shell and rotates along with the shell in the using process, communication of the front hole series and the rear hole series of the water braid is completed, and water in the water braid inner sleeve flows to the hole series of the water braid shell. When cooling water with proper pressure is introduced into the water braid, the self-resetting ejector rod tightly ejects the self-locking core rod of the forward and reverse rotation drill rod under the action of the pressure, and mutual self-locking of the drill rod after connection is achieved. By means of the design, it is guaranteed that no matter whether the drill rod rotates forwards or reversely, disengagement is avoided, and therefore the stability and safety of drill rod connection are improved.

The utility model relates to a five-prevention locking device and a circuit breaker. The five-prevention locking device comprises a panel and a supporting plate which are vertically arranged in parallel, a sliding plate which is arranged between the panel and the supporting plate in an up-down sliding mode, a closing interlocking mechanism, a grounding opening and closing mechanism and an isolation opening and closing mechanism. The sliding plate is fixedly provided with a deflector rod, a grounding interlocking hole and an isolation interlocking hole, the top of the right end of the sliding plate is provided with a concession platform, and the bottom of the sliding plate is connected with a vertical lock rod; the panel is provided with a gear groove, a grounding operation hole and an isolation operation hole. The distance between the grounding interlocking hole and the isolation interlocking hole is smaller than the distance between the grounding operation hole and the isolation operation hole. The circuit breaker is provided with the five-prevention locking device. The five-prevention locking device and the circuit breaker are simple in structure, convenient to operate, high in reliability and high in safety.

The application discloses an anti-stone degradable medical magnesium alloy and a preparation method thereof, relates to the technical field of biomedical materials, and aims to solve the technical problems that the prior art cannot simultaneously realize degradable control, interface stability and active anti-stone. The application comprises the following steps: S1. Rheocasting preparation of a magnesium alloy base body: magnesium alloy raw materials are melted under a protective atmosphere, overheated to 50-80 DEG C above the liquidus, poured onto a cooling plate with an inclination angle ranging from 30 to 60 DEG to form a semi-solid slurry, pressed into a mold at a pressure of 80-150 MPa and a speed of 0.2-0.5 m / s, and the mold is opened after pressure and heat preservation for 5-10 min, so that the magnesium alloy base body is obtained. The application has excellent anti-stone performance. On a physical level, the composition gradient transition structure uniformly releases the corrosion products of the magnesium alloy in the form of fine particles, and avoids the accumulation of large products to form stone cores.

An automatic transfer switch operating mode control module is characterized in that: during the rotation of the driving cam (3), the micro switch (6) can be linked to be in the corresponding triggering or off state, during the rotation of the driving cam (3), the sliding door (4) can be linked, the sliding door (4) can slide back and forth in the sliding door mounting slot (1a) under the joint action of the driving cam (3) and the sliding door reset spring (5), during the sliding, the manual operation area (1b) and the handle mounting slot hole (1c) on the face shield (1) can be correspondingly closed or opened, and the hasp plate (7) on the face shield (1) can be correspondingly limited or unlocked; the sliding door locking mechanism (8) can correspondingly limit or unlock the sliding of the sliding door (4) in the sliding door mounting slot (1a). The whole control module has simple structure and improves the reliability of position state realization.

The utility model belongs to the technical field of USB (universal serial bus) connectors, and discloses a USB 3.0 connector, which comprises a PCB (printed circuit board), a shell is mounted on the upper side of the PCB, a body is mounted in the shell, terminals are mounted on the body, a first connecting bridge is connected to the tail of each terminal, a second connecting bridge is connected to the head of each terminal, and no connecting bridge exists between two adjacent terminals. Two first openings and two second openings are formed in the top of the shell in parallel, first elastic pieces are installed in the two first openings, second elastic pieces are installed in the two second openings, two third openings are symmetrically formed in the two sides of the shell, third elastic pieces are installed in the two third openings, and the second elastic pieces are installed in the second openings. Two fourth openings are formed in the bottom of the shell in parallel, and fourth elastic pieces are installed in the two fourth openings; the body is provided with a catching groove, the position of the catching groove corresponds to the position of the second elastic piece, and a receding groove is formed in the outer portion of the shell.

The utility model provides a hanging tool and a control friction line. The hanging tool comprises a shear fork assembly and a balance interlocking assembly. The balance interlocking assemblies are arranged in pairs, the adjacent balance interlocking assemblies are oppositely arranged at intervals in the vertical direction, the shear fork assemblies are connected to the adjacent balance interlocking assemblies in the vertical direction, and each balance interlocking assembly comprises a mounting component and a driven component. The installation components are arranged in pairs, and the adjacent installation components are oppositely arranged in a spaced mode in the first horizontal direction. The driven members are rotatably connected to the mounting member about a second horizontal direction, the second direction being perpendicular to the first direction, the driven members adjacent in the first direction being engaged with each other. According to the utility model, when the hanger and the shear fork assemblies operate and lift, the hanger and the shear fork assemblies can be mutually and synchronously meshed along the first direction, so as to eliminate deflection torque generated in the lifting process of the hanger, ensure that the lifting is more accurate and stable, and ensure that a plurality of groups of shear fork assemblies are interlocked so as to improve the convenience and the fitness of application.

The utility model provides a brake early-warning signal lamp, relates to the technical field of signal lamps, and aims to solve the problems that when an existing brake early-warning signal lamp is used, monochromatic light bodies are usually emitted, so that a driver of a rear vehicle is not easy to pay attention and know light early-warning information in the driving process, and early warning is easy to ignore when sent out. Comprising a butt-mounting part; an external fixing part is arranged outside the butt-mounting part; and a warning part is arranged in the butt-mounting part. The sensor is fixed in the front mounting plate, so that the sensor is matched with the rear fixing plate and the butt joint U frame to be fixed at the tail of the vehicle body, a rear vehicle can be conveniently sensed in the stable keeping process, and the three-color lamp is controlled to generate different warning signals by sensing the distance between the sensor and the rear vehicle; therefore, the safety distance of the rear vehicle can be conveniently reminded through different warning signals, and the situation that braking response cannot be made in time due to the fact that the distance between the vehicles is small is avoided.

The utility model relates to a tractor control mechanism interlock structure and tractor, wherein, a tractor control mechanism interlock structure, including crawl block assembly and deputy variable speed block assembly, the crawl block assembly includes crawl block shift fork axle and the crawl block shift fork fixedly connected in the crawl block shift fork axle, the deputy variable speed block assembly includes deputy variable speed block shift fork axle and the deputy variable speed block shift fork fixedly connected in the deputy variable speed block shift fork axle, the deputy variable speed block shift fork axle with the crawl block shift fork axle are coaxial sliding connection through the plug -in mechanism, and the plug -in mechanism includes the insertion hole, and the difference between the hole depth of insertion hole and gear shifting stroke is greater than 0, and is less than gear shifting stroke, and gear shifting stroke is deputy variable speed block gear shifting stroke or crawl block gear shifting stroke. The utility model can realize interlock on the basis of no increase spare part, and simple and reliable maintenance is designed, and the chassis weight and development cost are reduced.

The utility model discloses an interlocking and self-locking circuit of a three-phase motor, which relates to the field of circuit connection modes and comprises a circuit L1, a normally-closed contact FR, a normally-closed button switch SB1, a normally-open button switch SB2, a normally-open button switch SB3 and a normally-closed auxiliary contact KM1, one end of the normally-open button switch SB2 is connected with the normally-closed contact FR in series, and the other end of the normally-open button switch SB2 is connected with a normally-closed auxiliary contact KM4 in series. The other end of the normally closed auxiliary contact KM4 is connected in series with a normally open auxiliary contact KM3 and a normally open auxiliary contact KM5, and the KM5 is connected in series with a normally closed button switch SB4. Compared with the prior art, the three-phase motor interlocking and self-locking circuit has the advantages that interlocking and self-locking of the three-phase motor can be achieved after wires are connected in series on the switch, one power line can be saved, the wires on the alternating current contactor are not too complex, and the circuit is simpler compared with a previous wiring mode.

The utility model discloses an isolated electric and ground manual integrated mechanism, including mechanism box, the panel of mechanism box outside setting and the manual mechanism and electric mechanism body of mechanism box left and right two ends inside respectively setting, still include: electric mechanism body and manual mechanism are respectively used for operating isolator and earthing switch, and manual mechanism is through manual operation disc, pin shaft, locking pin and return spring composition, the left end inside of mechanism box is connected with manual operation disc through pin shaft, and the outer end of manual operation disc has the circularly arc notch, the outer end of manual operation disc is the circumference, and is equipped with two limit grooves on the circumference, the below of manual operation disc is provided with the locking pin of mechanism box clamping connection. This isolated electric and ground manual integrated mechanism, compact structure can save the installation space while convenient for user installation, is favorable to ensuring that the position is correct to open and close, and is favorable to realizing the interlock of earthing and isolation operation.