952 results about "Locked plate" patented technology

An efficient lifting device capable of adapting to the mounting angle of a concrete armor block. The efficient lifting device comprises an automatic unhooking system (2) and a position adjustment system (3) which are arranged on a spreader system (1), wherein the spreader system comprises two main lifting beams (101) which are arranged in parallel, lifting arms (102) being hinged to the outer sides of the main lifting beams, the two opposite lifting arms being connected by means of the automatic unhooking system, and the lifting arms being configured to hold a prefabricated concrete block (4); the automatic unhooking system comprises a fixing frame (204), connecting rods (201) being symmetrically and telescopically provided on two sides of the fixing frame, and the connecting rods being hinged to the lifting arms; and the position adjustment system comprises a second jack (304) which is connected to a lock plate (301) by means of a sliding block (302). The efficient lifting device further comprises a fixing unit (9) detachably arranged on a lifting hook (10), wherein the fixing unit comprises a fixed pulley (901), two fixing cables (7) being wound around the fixed pulley, and both ends of each fixing cable being fixedly arranged on the main lifting beams. The lifting device can greatly improve the safety and efficiency of the lifting of a prefabricated concrete block, and can make an adjustment according to the angle of inclination of a slope, and has high adaptability.

A faucet includes a valve cartridge configured to control a flow of water and a structure that supports the valve cartridge. The structure includes a mount having a concave portion and a smooth portion positioned adjacent to the concave portion. The structure includes a lock plate that detachably couples to the mount, in which the lock plate has a convex portion. The convex portion of the lock plate interfaces with the concave portion of the mount in a first rotational position to secure the lock plate relative to the mount. The lock plate slides along the smooth portion in a second rotational position.

The invention relates to a locking device (1) for containers, doors, cabinets, furniture, or the like, which locking device has a lock plate (4), on which a combination lock (7), which has setting wheels (9), and a secondary lock (8) are arranged, and a stator (3), in relation to which the lock plate (4) having the combination lock (7) and the secondary lock (8) is rotatably arranged, the lock plate (4) having the combination lock (7) arranged thereon and with the secondary lock (8) arranged thereon being able to freely rotate 360 degrees relative to the stator (3) in the locked state of the locking device (1). In order to indicate opening of the locking device (1) by actuation of the secondary lock (8) to a person possessing the opening code of the combination lock (7), according to the invention, when the locking device (1) is opened by means of the secondary lock (8), the setting wheels (9) and coupling hubs (11) of the combination lock (7), which coupling hubs are associated with the setting wheels and can be axially moved relative to the setting wheels, can be uncoupled and an opening code of the combination lock (7) can be reset from an opening code set by means of the secondary lock (8) at the time of the opening of the locking device (1) to a specified factory code.

The invention discloses a three-position switch operating mechanism and a breaker manual operation locking device, and is characterized in that the three-position switch operating mechanism comprises a three-position operating mechanism which is provided with a program lock; on the program lock, pressing or releasing of an interlocking rod is controlled through a lock plate to limit or not limit an operation hole sliding door plate; the tail end of the interlocking rod is connected with the adjusting block; the adjusting block is connected with the end of the connecting pull rod; the connecting pull rod penetrates through a reset spring, and the state of the interlocking rod is reset through the reset spring when the program lock is unlocked. An interlocking connecting plate is arranged at the lower end of the connecting pull rod; a closing locking sliding plate and an opening locking sliding plate are symmetrically arranged on the interlocking connecting plate; the closing and locking slide plate is arranged on the circuit breaker support plate through a first guide structure; the opening locking slide plate is arranged on the circuit breaker support plate through a second guide structure. The closing locking slide plate is provided with a closing baffle plate used for blocking or releasing the closing button. The opening locking slide plate is provided with an opening baffle plate used for blocking or releasing the opening button. According to the invention, the program lock is adopted to connect the manual operation functions of the vacuum circuit breaker and the three-position switch together to allow or prohibit operation, padlocks are reduced, the program lock can realize more interlocking functions at the same time, the higher safety operation requirements of customers are better met, and the possibility of misoperation of the switch cabinet is reduced. Functions can be realized by adding a small number of parts on the basis of the original three-position operating mechanism and circuit breaker, the cost is low, and the function is reliable.

The invention belongs to the technical field of welding equipment, and particularly relates to a welding device with a heat dissipation function for aluminum material machining and a welding method.The welding device comprises a straight seam welding body, a clamping assembly and a driving assembly are arranged on the straight seam welding body, and a position adjusting assembly is assembled on one side of the driving assembly; a locking plate is assembled at one end of the position adjusting assembly, a welding head is assembled at one end in the locking plate, and the polishing part comprises a guide rod, a support, an elastic element and a polishing motor. The polishing motor drives the polishing roller to rotate to polish an oxidation film at the aluminum material seam, the oxidation film is prevented from influencing formation of a molten pool, meanwhile, gas is conveyed into the preheating air duct and the cooling air duct through the air inlet fan, the gas in the preheating air duct can preheat and clean the aluminum material seam after absorbing heat, and the aluminum material seam can be cooled through the cooling air duct. And gas in the cooling air duct can cool the welding seam, so that the welding seam quality is improved.

A reversible lockplate and a mating interface for securing a first container relative to a second container in a stacked configuration along a stacking direction are provided. A reversible lockplate includes: a planar body having a plurality of slots configured to receive respective portions of the first container; an articulation mechanism configured to rotate 180 degrees about an articulation axis; and at least one biasing member, the at least one biasing member configured to exert a biasing force on the planar body in a first direction when the reversible lockplate is in a first orientation and in a second direction when the reversible lockplate is in a second orientation. Actuation of the articulation mechanism may cause the reversible lockplate to transition between the first orientation and the second orientation.

The utility model belongs to the technical field of new energy automobile charging devices, and particularly relates to a locking structure and an European standard adapter, the locking structure comprises a rotating seat, a base, a lock plate, an elastic sheet, a slide rail, a first reset piece and a second reset piece, the slide rail and the rotating seat are arranged on the base; the lock plate is provided with a first end and a second end which are opposite in the length direction, the middle of the lock plate in the length direction is rotationally connected to the rotating seat, a rotating shaft of the lock plate extends in the first direction, and a lock catch is arranged at the first end and used for being connected with a first external device in a buckled mode; the first reset piece is arranged between the base and the lock plate, and the first end tends to move towards the base under the acting force of the first reset piece; the sliding rail extends in the second direction, the elastic piece is connected with the sliding rail in a sliding mode, the elastic piece can slide between a first preset position and a second preset position, and the elastic piece tends to move away from the first preset position under the acting force of the second reset piece. According to the utility model, the unlocking step after the new energy automobile is charged is simplified.

The invention discloses a gas turbine and a turbine blade locking structure and a locking plate thereof, and relates to the technical field of gas turbines. The lock plate comprises a flat plate body; the flat plate body is a bendable plate; the clamping bulge is arranged on the first surface of the flat plate body; the first surface is perpendicular to the first direction; the first direction is parallel to the thickness direction of the flat plate body; and after the clamping bulge is clamped with the clamping groove, the first end of the flat plate body extends out of the fit clearance. The lock plate is simple in structure, fastening parts such as bolts do not need to be adopted when the lock plate is used, and the machining and manufacturing cost is low. And the lock plate is simple in structure, so that the lock plate does not need to occupy a large structural space, and the reliability of the whole locking structure can be improved.

The utility model relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box with a safety protection device, which comprises a box body, the outer wall of the box body is rotatably connected with a sealing cover, the outer wall of the sealing cover is fixedly connected with a lock plate, the outer wall of the lock plate is fixedly connected with a lock catch, and the lock catch is fixedly connected with the safety protection device. A lock head penetrates through the outer wall of the lock catch, a sealing strip is fixedly connected to the outer wall of the sealing cover, an electric energy meter is fixedly connected to the inner wall of the box body, and a sealing assembly is arranged in the box body. According to the electric energy metering box with the safety protection device, a push plate on the box body is covered by a sealing strip, so that the push plate ejects a baffle open, a rotating rod rotates to enable the sealing plate to rotate to block a gap between a sealing cover and the box body, the sealing cover is attached to the sealing plate at the moment, a telescopic clamping block is clamped with a clamping groove, and water leakage is prevented; and the sealing cover can be opened only when the handle is pressed.

The utility model provides an electricity larceny prevention electric energy metering box which comprises a box body, a box door is arranged at the front end of the box body in a rotating opening and closing mode, a plurality of sliding rails are arranged on one inner side wall of the box body, a pressing block is arranged on the sliding rails in a sliding mode, a box door lock is arranged on one side of the box door, a lock plate is arranged at one end, penetrating through the box door, of the box door lock, and an inserting groove used in cooperation with the lock plate is formed in one side of the pressing block. A surrounding plate is arranged on the edge of the front end of the box body in an inward extending mode, a switch is arranged at the rear end of one side of the surrounding plate, movable holes are formed in the top and the bottom of the switch, ejector rods are movably arranged in the movable holes, springs are arranged in the movable holes, and an alarm is arranged at the rear end of the top of the surrounding plate. The lock plate is rotationally inserted into the insertion groove, when the box door is pulled outwards, the lock plate drives the pressing block to press the switch, the switch starts the alarm, the ejector rod supports the pressing plate through the elastic force of the spring, the pressing block can be displaced only by large force, and therefore the situation that the alarm is triggered due to the influence of the environment can be avoided.

The utility model discloses a special device for press-fitting a bottle cap of a powdered ink packaging bottle, which comprises a rack, a bottle body locking mechanism and a bottle cap press-fitting mechanism, and the bottle body locking mechanism and the bottle cap press-fitting mechanism are both arranged at the top of the rack; the bottle body locking mechanism comprises a bottom plate assembly welding piece, a lock plate pull rod assembly welding piece and a lock plate assembly welding piece, the bottom plate assembly welding piece is arranged at the top of the rack, and the lock plate pull rod assembly welding piece is arranged on the bottom plate assembly welding piece in a sliding mode. The powdered ink packaging bottle press-fitting device has the advantages that the rack provides a supporting effect for the whole device, in the using process, after a bottle body of a powdered ink packaging bottle is fixed through the bottle body locking mechanism and a bottle cap is placed, the bottle cap can be pressed on a bottle opening through the bottle cap press-fitting mechanism, the whole device is easy to operate, the whole press-fitting operation can be completed by a single person, labor intensity is low, and production efficiency is high. The operation efficiency is high, and the press-fitting operation can be quickly and efficiently completed; the whole device completes press fitting operation through a mechanical structure, it can be guaranteed that the press fitting operation force is uniform, and the press fitting quality can be effectively guaranteed.

The utility model relates to the technical field of locks, in particular to a lifting type luggage lock which comprises a lock shell, a locking mechanism, an unlocking piece, a lock plate and a swing block, the lower end portion of the swing block is hinged to the lock shell, the upper end portion of the swing block is hinged to the middle of the lock plate, and a lock hook portion is arranged at the front end portion of the lock plate. During unlocking, the whole lock plate swings forwards with the swing block as a fulcrum shaft so as to be lifted relative to the lock shell. During locking, the whole lock plate swings backwards with the swing block as a fulcrum shaft and is attached to the lock shell downwards. The locking mechanism clamps the locking plate to keep locking; after a correct instruction is input into the locking mechanism, limitation on the lock plate can be relieved by operating the unlocking piece through external force. Compared with the prior art, the lock plate can hook the opening and closing two sides of the luggage to be close to each other, so that the opening and closing two sides of the luggage are combined more tightly, and the luggage is not easy to be unlocked maliciously.

The utility model relates to a padlock assembly of an electric operating mechanism, which comprises a shell, a padlock piece, a first microswitch, a lock plate, a manual and automatic switching sliding plate and a second microswitch which is arranged in the shell and matched with the manual and automatic switching sliding plate, when the padlock piece slides to a locking position, the lock plate acts along with the padlock piece and abuts against a sliding block, and when the padlock piece slides to a locking position, the padlock piece moves along with the sliding block. The sliding block is in limiting fit with the lock plate; a limiting block is arranged on the padlock piece, a positioning block matched with the limiting block is arranged on the manual and automatic switching sliding plate, and when the manual and automatic switching sliding plate slides to the electric position and the padlock piece slides to the locking position, the limiting block abuts against the positioning block, and limiting matching of the manual and automatic switching sliding plate and the padlock piece is formed. The utility model has the advantages of simple structure, stable and reliable performance, convenience in assembly, safety, reliability and low cost.

The invention discloses an eccentric main shaft structure, and belongs to the technical field of turning. Mainly comprises an eccentric sleeve, a mandrel eccentrically arranged in the eccentric sleeve, an action arm and a lock plate, the eccentric sleeve is provided with a cooling flow channel, the eccentric sleeve is further provided with a first flow channel port and a second flow channel port, the first flow channel port and the second flow channel port are communicated with the two ends of the cooling flow channel respectively, and the action arm comprises a sliding sleeve, a piston and an elastic piece. The sliding sleeve is connected with the eccentric sleeve, an inner cavity of the sliding sleeve is communicated with the cooling flow channel, the piston is slidably installed in the sliding sleeve in the radial direction of the mandrel, one end of the piston faces the cooling flow channel, the other end of the piston faces the external environment, and the elastic piece is connected with the piston and used for applying elastic force to the piston all the time so as to drive the piston to slide to be close to the cooling flow channel. Meanwhile, the piston is far away from the mandrel in the radial direction of the mandrel, and the locking plate is connected with the piston. According to the eccentric main shaft structure, the operation of adjusting the center distance of the supporting rollers can be simplified, and the operation efficiency is improved.

The present invention relates to the field of civil air defense doors, and discloses a civil air defense door for civil air defense protection, comprising a door frame and a civil air defense door body, wherein two civil air defense door bodies are installed in the door frame through a rotating structure, and a first locking structure is arranged at a front side of each civil air defense door body near the middle. When the two civil air defense door bodies are closed on the door frame, an extrusion structure is used to release the limit of a first lock plate on the first locking structure by a limiting structure, and the first lock plate can be pulled and inserted into the first lock frame of the door frame through a pulling structure, thereby greatly shortening the locking time of the two closed civil air defense door bodies and improving safety; and a second locking structure is arranged on the first lock plate and the door frame, so that after the first locking structure locks the civil air defense door body, it can automatically drive the second locking structure to perform locking work, so that the civil air defense door body arranged on the door frame is locked more firmly and the civil air defense effect is better.

The utility model discloses a building curtain wall steel structure framework which comprises a base, a plurality of connecting assemblies are arranged on the outer wall of the base, a plurality of fixing assemblies are arranged on the outer walls of the connecting assemblies, connecting cylinders are arranged on the outer walls of the connecting assemblies, and locking rods are arranged on the inner walls of the connecting cylinders. The base comprises a main seat and an auxiliary fixing seat, a side rod is fixedly connected to the outer wall of the main seat, an auxiliary inhaul cable is arranged on the outer wall of the auxiliary fixing seat, a locking piece is connected between the side rod and the auxiliary inhaul cable, the locking piece comprises a locking plate, locking grooves are formed in the two sides of the locking plate, spring clamping pins are arranged on the inner walls of the locking grooves, and the spring clamping pins are connected with the locking plate. Fixing rings are arranged at the two ends of the auxiliary inhaul cable; according to the building curtain wall steel structure framework, the base is arranged, the main base is fixedly installed, the auxiliary fixing base and the auxiliary inhaul cable are fixed according to needs, the auxiliary inhaul cable and the main base are in triangular connection, the overall stability of the base is improved, and the locking piece is arranged.

The invention discloses a safe operation method for an aerial operation robot to quickly release an overhead line and a pressing walking device and an emergency quick release mechanism thereof, and has the advantages that the pressing walking device is integrated with the emergency quick release mechanism, a rotating seat of the emergency quick release mechanism is hinged with a fixed seat, and a torsion spring is sleeved on a hinge shaft; the two torsion springs are arranged on the two sides of the rotating base respectively, the two ends of each torsion spring abut against the fixed base and the rotating base respectively, the electromagnet is installed on the rotating base, and the pressing mechanism is installed below the rotating base. An iron core of the electromagnet extends out to be locked with the lock plate in a normal state, the pressing walking device can work normally, when an emergency occurs, the electromagnet can quickly act to enable the iron core of the electromagnet to retract to be unlocked from the lock plate, and at the moment, under the acting force of the torsion spring, the rotating seat immediately bounces and rotates to drive the pressing mechanism to quickly eject outwards to be opened so as to release the overhead line. The aerial operation robot can lift off and break away in time, so that damage is avoided.

The utility model relates to the technical field of caps, and discloses an adjustable cap which comprises a peaked cap, an adjusting belt is fixedly connected in the peaked cap, one end of the adjusting belt is fixedly connected with a frame, and a locking assembly is arranged in the frame. The locking assembly comprises a locking plate, one side of the locking plate is rotationally connected into the frame, an adjusting groove is formed in the frame, the adjusting belt is arranged in the adjusting groove in a penetrating mode, an open groove is formed in the frame, a locking groove is formed in the frame, and a toothed plate is fixedly connected to the bottom of the locking plate. According to the adjustable cap, the position of the frame on the outer wall of the adjusting belt is adjusted, the adjusting belt is shortened, then the head circumference of the peaked cap is adjusted, only the locking plate and the frame need to be buckled during locking, the clamping block in the locking plate and the locking groove are embedded for locking, the effect of rapidly adjusting the head circumference of the cap is achieved, and the problem that the head circumference of the cap cannot be adjusted rapidly during traditional buckle adjustment is solved. Therefore, the convenience of the adjustable hat is improved.

The invention discloses a sliding safety locking device, an automobile sliding rail mechanism and an automobile auxiliary fascia console module, which are used for locking the sliding rail mechanism, and comprise a locking plate rotationally arranged on an upper rail; a lock plate limiting assembly; the lock plate reset assembly is used for enabling the lock plate to be always in an unlocking state, the two lock arms are arranged to be far away from the lock hole of the lower rail in the unlocking state, and after the external acting force borne by the lock plate is relieved, the lock plate can be restored to the unlocking state; and when the motion acceleration of the upper rail reaches a set value, the lock plate can overcome the action of the lock plate reset assembly under the driving of inertia acting force and rotate, so that one lock arm can be inserted into the lock hole to lock the upper rail. When the vehicle accelerates or brakes suddenly, the lock plate rotates under the inertia acting force, one lock arm of the lock plate can be inserted into the lock hole, the upper rail is locked, and sliding of the upper rail and the auxiliary instrument panel arranged on the upper rail is limited.

The invention discloses automatic copper material welding equipment based on a robot, and relates to the technical field of welding, the automatic copper material welding equipment comprises a robot body and a workbench, the end part of the robot body is fixedly connected with an end part frame, one side of the end part frame is fixedly connected with a mounting block, and the outer side of the mounting block is provided with a damping butt joint mechanism. The automatic copper material welding equipment based on the robot has the beneficial effects that when a welding gun body is installed, the welding gun body penetrates through a butt joint sleeve, clamping plates extrude and fix the welding gun body under the action of extrusion spring rods, after preliminary fixing, a positioning sliding block is rotated into a positioning connecting hole, fixing of the positioning sliding block is completed, and the welding gun body is fixed through the butt joint sleeve; and at the moment, the damping spring is in a compressed state, then the end of the welding gun body is fixed between the two locking plates, secondary fixing of the welding gun body is completed, primary fixing and secondary fixing improve the mounting firmness of the welding gun body, separation of the welding gun body in the operation process is avoided, and the using safety of the welding gun body is improved.

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.

A cargo handling system is disclosed herein. The cargo handling system includes a ball panel for moving and storing cargo and a cargo restraining device disposed within the ball panel. The cargo restraining device includes a base, a cam head having a rounded base portion, the rounded base portion having a lock slot formed therein, a shaft securing the cam head to the base, and a spring-loaded lock plate configured to engage the lock slot.

The invention provides a through channel which comprises a side protection plate device, the side protection plate device comprises a locking assembly, the locking assembly comprises a lock hook, a lock plate sliding relative to the lock hook and a rotating block installed at the bottom of the lock plate, a lock hole is formed in the lock plate, the lock hook can be inserted into the lock hole in a penetrating mode, and a rotating slope groove is formed in the rotating block. The rotating slope groove is spirally formed in the rotating block, the bottom of the lock plate abuts against the groove bottom of the rotating slope groove, a driving piece is further installed on the rotating block, the driving piece is operated to drive the rotating block to rotate relative to the lock plate, the driving piece is utilized to enable the rotating block to rotate below the lock plate, and the lock plate is pushed by the rotating slope groove to move up and down. And the unlocking of the side guard plate is completed by matching with the insertion of the latch hook, so that the disassembly process of the side guard plate is simplified, and the unlocking of a train is facilitated.

The invention belongs to the field of controllers, and provides an anti-theft intelligent motor-pumped well controller which comprises a controller body, an outer protection assembly and an anti-theft assembly, the outer protection assembly comprises a buried pipe and a supporting cylinder, the top of the supporting cylinder is a diagonal plane, and the diagonal plane is used for installing the anti-theft assembly and the controller body; the anti-theft assembly comprises a mounting piece, a panel piece, an anti-explosion glass cover and a coded lock assembly, an alarm is arranged on the inner top of the anti-explosion glass cover, the caliber of the bottom edge of the anti-explosion glass cover is larger than that of a panel opening, and the anti-explosion glass cover is pressed above the mounting piece from top to bottom through the main panel; the coded lock assembly comprises an upper lock hole set arranged in the twelve clock directions of the main panel, a lock plate located between the main panel and the mounting cover and a lower lock hole set arranged on the mounting cover, and the upper lock hole set, the coded hole set and the lower lock hole set are connected through code bolts and decryption bolts. The anti-theft lock is reasonable in design, good in integration, good in anti-theft performance, high in practicability, high in utilization rate and suitable for large-scale popularization.

The invention relates to a switch cabinet with an interlocking mechanism, which comprises a mounting base and a switch cabinet door, a circuit breaker mechanism and an isolation grounding mechanism are arranged on the mounting base, and the isolation grounding mechanism comprises an isolation shaft and a grounding shaft which are rotatably arranged on the mounting base. The circuit breaker mechanism comprises an opening and closing shaft and an interlocking assembly used for locking or unlocking the switch cabinet door, the circuit breaker mechanism further comprises a lock plate fixed relative to the opening and closing shaft and a guide piece arranged on the mounting base in a sliding mode, and the interlocking assembly comprises a lock piece arranged on the mounting base in a sliding mode. And the lock plate is directly or indirectly pressed against the guide piece or the lock piece after rotating. According to the technical scheme, the isolation shaft, the grounding shaft and the driven shaft are integrated on the same mounting base, the linkage assembly is arranged to achieve three-shaft linkage, and mechanical interlocking between the isolation shaft and the grounding shaft can be achieved in cooperation with the blocking part on the isolation piece.

The utility model discloses a clamping groove fixed type camera support, which comprises a support body, a clamping seat, a quick release plate and a locking plate, the clamping seat is arranged above the support body, the quick release plate is arranged in the clamping seat, a first clamping groove is arranged on the outer wall of one side of the quick release plate, a second clamping groove is arranged on the outer wall of the other side of the quick release plate, and the locking plate is arranged in the first clamping groove. The locking plate is installed on the outer wall of the clamping seat at the position of the second clamping groove through a rotating shaft, a second clamping block is arranged on the inner wall of the locking plate, the second clamping block is connected with the second clamping groove in a clamped mode, a rectangular groove is formed in the inner wall of the clamping seat at the position of the first clamping groove, and a spring is installed on the inner wall of one side of the rectangular groove. A first clamping block is fixed to one end of the spring and connected with the first clamping groove in a clamped mode. The camera can be quickly disassembled and assembled, the operation is simple and convenient, and the installation is stable and reliable.

The invention provides a full-automatic self-locking trailer tail hook in order to solve the problems that an existing trailer hook is unstable in self-locking performance and short in service life, and the full-automatic self-locking trailer tail hook comprises a trailer hook body, a driving part and a self-locking structure. The self-locking structure comprises a self-locking plate, a limiting plate, a rotating piece, a self-locking pin and a rotating shaft; the rotating shaft is in transmission connection with the driving piece; the self-locking plate is fixedly arranged on an external frame; the rotating piece is rotationally arranged on the outer side of the rotating shaft and is further fixedly connected with the tow hook; the limiting plate is fixedly arranged on the outer side of the rotating shaft and located between the rotating piece and the self-locking plate. A waist-shaped hole is also formed in the rotating piece; the self-locking pin penetrates through the arc-shaped hole and enters a groove formed in the self-locking plate; the two ends of the arc-shaped hole correspond to the two ends of the kidney-shaped hole. The self-locking plate is provided with an arc-shaped groove corresponding to the far end in the kidney-shaped hole, the self-locking plate is further provided with a self-locking hole communicated with the groove, and the other end of the self-locking hole faces the axis of the rotating shaft. Therefore, rotation self-locking is achieved, and the service life and the self-locking effect are guaranteed.

The utility model discloses an automatic opening and closing type sun hat, and belongs to the technical field of sun hats. The hat mainly comprises a hat body, the hat body is composed of a hat top and a hat brim, the hat top and the hat brim are connected in a sewing mode, the bone beam is arranged on the edge of the hat brim, the toggle clip mechanism is installed on the edge of the hat brim and provided with a fixing clamp arranged on the hat brim, a movable clamp is hinged to the side portion of the fixing clamp, and a lock catch is hinged to the fixing clamp. The lock catch and the movable clamp are symmetrical, the lock catch is composed of a buckling and pressing plate located on the outer side of the fixed clamp and a lock plate located on the inner side of the fixed clamp, the lock plate abuts against the movable clamp, the cap body is suitable for being folded under the cooperation of a bone beam to form a three-ring type structure, and the movable clamp is suitable for being matched with the fixed clamp to lock the folded cap body. According to the automatic opening and closing type sun hat, the problem that the sun hat is inconvenient to store is solved.

The utility model provides an interlocking mechanism for a grounding switch and a switch cabinet, and the interlocking mechanism comprises a lock plate which can rotate between an avoiding position and a blocking position, when the lock plate is located at the avoiding position, the lock plate can prevent a rear door from being opened, and when the lock plate is located at the blocking position, the rear door can be opened; when the locking block is located at the first position, the locking block stops the operation main shaft from rotating so as to enable the grounding switch to be kept in a closed state, and when the locking block is located at the second position, the operation main shaft can rotate; the transmission part is connected between the lock plate and the locking block, the locking block is located at the first position when the lock plate is located at the avoiding position, and the locking block is located at the second position when the lock plate is located at the blocking position. According to the interlocking mechanism for the grounding switch, the locking plate and the locking block are arranged, and the two parts are connected through the transmission piece, so that the locking plate can be close to the rear door, the locking block can be close to the grounding switch, and the interlocking reliability is further improved.