3721 results about "Locking plate" patented technology

A box can include a first side panel; a second side panel positioned perpendicular to the first side panel; a top panel joined to the first side panel; and a handle assembly, the handle assembly including: a handle portion attached the top panel, the handle portion including a tab at a side end of the handle portion, and a locking panel attached to the second side panel, the locking panel defining a cut pattern, the cut pattern including a first side cut and a second side cut, a flap defined between the first side cut and the second side cut, the first side cut diverging into an inner cut extending along a bottom of the flap and an outer cut defining a space below the bottom of the flap, a portion of the second side cut extending along the bottom of the flap.

Rear cargo tray systems to provide extra storage within a vehicle and related methods are provided herein. A rear cargo tray system for rotatable securement to an interior portion of a vehicle can include a tray body and first and second tray brackets that provide support surfaces on which the tray body can rest. The rear cargo system can comprise first and second hinges secured to the tray body and the respective first and second tray brackets and first and second gas springs anchored to the respective first and second tray brackets with piston arms that can be secured to the tray body. Further, the rear cargo system can comprise at least one latch secured to the tray body distal from the first and second hinges configured to engage a locking plate on one of the first or second tray brackets.

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 provides an electrical button, which has a accommodating groove with a accommodating cavity, an elastic fixing member and a rigid pressing member are arranged on the accommodating groove; the elastic fixing member has an upper ring cover and a lower ring cover, forming a first clamping groove; the upper ring cover and the lower ring cover The outer periphery of the ring cover is connected by the cap wall, and the lower end of the cap wall is clamped in the connecting groove of the side wall of the receiving groove; the outer periphery of the lower end of the cap wall is provided with an upper fixing edge and a lower fixing edge to form a second clamping groove; The first clamping plate in the first clamping groove, the first clamping plate is provided with a pressing plate; the first clamping plate is provided with a guide post, and the lower end of the guide post is provided with a moving contact; the bottom surface of the receiving cavity is provided with a first static contact and the second static contact; the outer guide post is provided with an elastic piece, the upper end of the elastic piece is provided with an upper fixed end, and the lower end is set with a lower fixed end; the upper fixed end is clamped in the upper fixing groove of the first clamping plate, and the lower fixed end is clamped Connected to the lower fixing groove in the receiving cavity. The invention realizes double reset through the cap wall and the elastic member, so as to avoid the push button from being dead; the sealing performance is good, and dust and water are prevented from entering.

The utility model relates to the technical field of hydraulic tongs, in particular to a tong head locking mechanism of hydraulic power tongs, which comprises an X-shaped frame, a hydraulic power tong head locking mechanism and a hydraulic power tong head locking mechanism. Tooth grooves are formed in the side faces, close to each other, of the first arc-shaped plate and the second arc-shaped plate, a rotatable transmission gear is arranged between the first arc-shaped plate and the second arc-shaped plate in a meshed mode, a locking gear is fixedly connected to the outer side of the transmission gear, the locking plate is arc-shaped, and tooth grooves meshed with the locking gear are formed in the inner wall of the locking plate. The device has the beneficial effects that the first arc-shaped plate and the second arc-shaped plate are fixedly installed at the rear ends of the two movable arms correspondingly, the rotatable transmission gear is installed between the first arc-shaped plate and the second arc-shaped plate, the driving piece drives the locking plate to slide and limits rotation of the locking gear, and the transmission gear can limit the first arc-shaped plate and the second arc-shaped plate; therefore, mechanical locking of the X-shaped frame is achieved, and the situation that the hydraulic cylinder cannot clamp a workpiece due to insufficient pressure of the hydraulic cylinder is avoided.

A lockable differential assembly includes a lock plate that is rotatable about a rotational axis. The differential assembly also includes actuator assembly having a stator and an armature, the actuator assembly being switchable between energized and de-energized states. A radial alignment of the stator is provided based on a piloting feature provided at an outer diameter of the stator housing. A slip ring assembly configured to axially translate based on the locked state or the unlocked state of the differential assembly is provided, including a slip ring that interfaces with the armature at a slip surface, and one or more pins rotationally coupling the slip ring to the lock plate. The slip ring assembly is configured to transmit an axial locking force and an axial return force between the actuator assembly and the lock plate.

The seat backrest lock comprises a lock body, a lock blade and a locking plate, the lock body is provided with a lock opening allowing an external automobile lock bolt to be placed in, the lock blade is bent towards the direction of the lock opening to form a lock hook used for sealing an opening of the lock opening, and the locking plate is provided with a pressing rod used for driving the locking plate to move when being pressed and releasing limitation on movement of the lock blade. A reset structure used for driving the lock blade and the locking plate to movably reset is arranged on the lock body, and a linkage block is arranged at the position, close to the lock opening, of the outer wall of the lock body. The buffer block is used for reducing the impact force of the automobile lock bolt and reducing the collision strength between the automobile lock bolt and the inner circumferential wall of the lock opening and between the automobile lock bolt and the lock blade when the external automobile lock bolt is placed into the lock opening, and the reinforcing structure is used for improving the buffering force of the buffer block on the external automobile lock bolt. The automobile seat backrest lock solves the problem that a traditional seat backrest lock is prone to excessively colliding with a lock opening or a lock blade when an automobile lock bolt is placed in so that parts can be damaged or large noise can be generated.

The invention relates to a quick-release protective primary and secondary fusion complete ring main unit, and relates to the technical field of ring main units, the quick-release protective primary and secondary fusion complete ring main unit comprises a box body, a terminal strip and a box door mounted on the vertical side surface of the box body, and heat dissipation openings are formed in the two side walls of the box body; a plurality of fixed insertion blocks are fixedly arranged on the terminal row, substrates are installed on the two inner walls of the box body in the vertical direction, and fixed insertion grooves allowing the fixed insertion blocks to be embedded therein are formed in the side faces, away from the side walls of the box body, of the substrates; limiting plates capable of sliding up and down are arranged on the upper side face and the bottom face of the base plate, positioning plates are perpendicularly and fixedly arranged on the side faces, away from the base plate, of the limiting plates in the horizontal direction, and locking plates bent in the direction close to each other are perpendicularly and fixedly arranged on the two positioning plates. A control piece is arranged in the box door, and a reset piece is arranged on the base plate. When the box door is closed, the control piece drives the two locking plates to slide oppositely, and the terminal row is locked rapidly. When the box door is opened, the reset piece enables the two locking plates to slide oppositely, and quick disassembly and maintenance are facilitated.

The application discloses a kind of automobile seat slide rail structures, it is related to the technical field of automobile accessories, it includes outer rail, inner rail, rocker mechanism and guiding limiting mechanism;Rocker mechanism includes the rod body being arranged in inner rail, the proximal end of rod body is connected with crank after extending out of inner rail, the distal end of rod body is provided with locking plate and torsion spring;The side of locking plate is connected with rod body, the other side of locking plate is provided with several clamping teeth;The side wall of outer rail is provided with locking hole compatible with clamping tooth;Guiding limiting mechanism includes fixed plate, limiting pin and limiting block;Fixed plate is arranged in inner rail and below rod body, the middle part of fixed plate is provided with guiding slot along the axial direction of inner rail;The lower end of limiting pin is connected with the inner bottom wall of outer rail, the upper end of limiting pin is passed through guiding slot and then abuts on rod body;Limiting block is provided with through hole for rod body to pass through, and the upper end of limiting block is connected with inner rail, the lower end of limiting block is connected with fixed plate;Limiting pin and limiting block are made of rubber material.

The utility model relates to a turnover type pickup truck rear cover which is provided with a bottom frame. Side edge supporting plates are arranged on the bottom frame, a sliding cover plate is arranged on the bottom frame, the sliding cover plate comprises a positioning cover plate and a connecting cover plate, the connecting cover plate comprises a plurality of rotating plates, the side edge of each side edge supporting plate is provided with a locking groove, the bottom of each rotating plate is provided with a positioning mechanism, and each positioning mechanism comprises a positioning assembly, a rope frame and a first pull rope. The positioning assembly comprises a locking bottom plate, wire boxes, a locking channel, a locking plate, a spring bolt and a first reset spring, a plurality of first rope holes are formed in the locking plate, a through hole is formed in the rope frame, one end of a first pull rope is fixed to any first rope hole in the locking plate, and the other end of the first pull rope sequentially penetrates through the wire boxes and the through hole in the rope frame and then extends into the wire box on the other side; and the first rope hole is fixedly connected with the first rope hole in the locking plate in the wire box on the other side. The device is ingenious in structure, convenient and practical.

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 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 invention relates to the technical field of transformer substation cabinets, and discloses a transformer substation cabinet locking mechanism which comprises a cabinet door, a sealing strip and a locking unit, the sealing strip and the locking unit are both arranged on the inner side face of the cabinet door, one end of the locking unit is connected with the cabinet door, and the other end of the locking unit is connected with the inner side of a box body frame at the pressing position of the sealing strip. The locking unit comprises door lock pieces, a lock pressing plate piece and a balance assembly, the door lock pieces are arranged on the inner side face of the cabinet door, the lock pressing plate piece is arranged on the door lock pieces, the door lock pieces are located in the middle of the lock pressing plate piece, the door lock pieces are used for serving as reference fulcrums for moment balance of the two ends of the lock pressing plate piece, one end of the lock pressing plate piece is connected with the sealing strip, and the other end of the lock pressing plate piece is connected with the balance assembly. The other end of the lock pressing plate piece is connected with the balance assembly, the balance assembly comprises an installation base and an elastic piece, the installation base is fixed to the cabinet door, one end of the elastic piece is connected with the installation base, the other end of the elastic piece is connected with the lock pressing plate piece, pressure of all locking points is effectively balanced, and the situation that locking force of all locks of the cabinet door is inconsistent is improved.

The utility model discloses an anti-disengagement elevator counterweight filler which comprises a bottom frame, limiting rods are fixed at two ends of the bottom frame, a counterweight assembly is arranged on the bottom frame and comprises a counterweight block, connecting blocks are fixed at two ends of the counterweight block, the connecting blocks are movably arranged on the limiting rods in a sleeved mode, and quick release structures are arranged on the connecting blocks. The connecting block is provided with a moving groove which penetrates through one side and allows the limiting rod to move, the quick release structure comprises a locking plate which is fixedly connected with the connecting block, a blocking block which is fixed to the locking plate is arranged in the moving groove and abuts against the limiting rod, and a top frame which is connected with the bottom frame in an assembling mode is arranged above the counterweight assembly. According to the utility model, through the arrangement of the quick release structure, when the counterweight assembly positioned in the middle is damaged, the counterweight assembly positioned above the damaged counterweight assembly does not need to be taken down from the limiting rod, and the damaged counterweight assembly can be directly taken down from the limiting rod, so that the disassembly steps are simplified, the time and labor are saved, and the maintenance is convenient.

The invention relates to the field of testing devices, in particular to a bending strength testing device for a fitness equipment barbell rod. The invention aims to solve the technical problems that in the bending strength test of a barbell rod, the barbell rod needs to bear large bending force, if a clamp mechanism is unstable or the clamping force is insufficient, the barbell rod may slip or break in the test process, and potential safety hazards are caused to testers and equipment. Comprising a box body, a shell is fixedly connected to the upper surface of the box body, a spacing mechanism is arranged on the inner side of the box body, two clamp mechanisms are arranged on the upper side of the spacing mechanism, pressing mechanisms are arranged on the two sides of each clamp mechanism, a rotating mechanism is arranged on the side face of the clamp mechanism on the left side, and a detection mechanism is arranged between the two clamp mechanisms. By arranging the clamp mechanism, a clamping handle rotates, four clamping wheels move oppositely to clamp and fix a barbell rod, and a locking handle moves downwards to drive a locking pin and a limiting frame to lock the position of a locking plate.

The invention discloses a ratcheting device with a safe damping mechanism. It has a base plate and side plates. A central shaft holds a wrenching handle and a ratchet, webbing is rolled around the central shaft; a coiling spring is on one side of the central shaft; a lock plate on side plates stops the ratchet from rotating in a pay-out direction; a drive plate on wrenching handle can drive the ratchet rotates in a retracting direction. The side plates have slide groove and release protrusion section. When the drive plate is in the slide groove, the webbing can be retracting by moving the handle; when drive plate is in the release protrusion section, the webbing can be released or retracting freely. A damping mechanism on the central shaft provides resistance to the safe retraction of the webbing.

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 belongs to the field of bullet retreating, and particularly relates to a rapid bullet retreating device which comprises a base, a cover plate is arranged on the top of the base, bullet retreating openings are formed in some portions of the base, a bullet clamping opening is formed in one side of the base, a locking plate is hinged to one side of the base, a bullet retreating assembly is arranged in the base, and the bullet retreating assembly is connected with the bullet clamping opening. The bullet retreating assembly extends to the position above the cover plate. When the bullet is withdrawn, the cartridge clip is inserted into the base from the cartridge clip opening, the locking plate is in contact with the cartridge clip and rotates along with insertion of the cartridge clip, the cartridge clip can be fixed by matching with the two elastic buckles on the locking plate, then the connecting rod is rotated through the handle, the connecting rod drives the rotating shaft rod to rotate, and the shifting gear rotates along with the rotating shaft rod. Teeth on the shifting gear can shift bullets on the cartridge holder out of the cartridge holder one by one, and then the bullets are withdrawn from the bullet withdrawing opening, so that the effect of quickly withdrawing the bullets is achieved.

The utility model discloses a magnetic drive pump with an anti-corrosion effect, and relates to the technical field of magnetic drive pumps. The device comprises a base plate body and a connecting seat body fixed on the lower end face of the base plate body, and further comprises placing seats which are symmetrically arranged on the left side and the right side of the upper end face of the base plate body, and magnetic pumps are clamped at the upper ends of the placing seats; the locking plate I is clamped at the upper end of the placing seat, and an adjusting mechanism is arranged at the lower end of the locking plate I; the locking assembly is arranged on the lower end face of the first locking plate. The appearance structure of the first locking plate and the appearance structure of the second locking plate are matched, the positions of the first locking plate and the second locking plate can be adjusted at the same time through the adjusting mechanism, the position of the magnetic drive pump can be rapidly limited, the formed locking groove can be connected with a locking clamping piece on the outer side of the magnetic drive pump in a clamped mode, and therefore the magnetic drive pump can be conveniently and rapidly fixed. Due to the fact that the device is easy to install, workers can install and detach the device conveniently, work efficiency is improved, and follow-up overhaul and maintenance of the magnetic drive pump can be facilitated.

The present invention provides an electric cart which is relatively compact and which can be smoothly deformed into a walking mode and a self-driving mode.　An electric cart (10) comprises a lock mechanism (50) for locking an operation handle means (30) in a state in which the operation handle means (30) is displaced. The operation handle means (30) is attached to a vehicle body (20) in such a manner that the operation handle means (30) can be rotated in the front-rear direction (Z). The lock mechanism (50) has an operation lever (80) which is positioned on the operation handle means (30) and which has an engagement protrusion (80a) and a lock plate (70) which is positioned on the vehicle body (20) such that the lock plate (70) faces the operation lever (80). The operation lever (80) is constantly biased toward the lock plate (70). The lock plate (70) has a first engagement groove (71) with which the engagement protrusion (80a) is engaged and a second engagement groove (72) which is positioned rearward of the first engagement groove (71).

The present invention relates to the technical field of semiconductor carriers, and particularly relates to a photomask box with a washable base, which includes a base and a locking mechanism. The locking mechanism includes a rotating disk, an elastic connecting member, and a locking plate. The rotating disk includes a disk body, a connecting column, and a sliding groove. Compared with the prior art, by providing the elastic connecting member made of plastic or rubber, self-locking during opening and closing is achieved while avoiding metal ion contamination during pickling, enabling the base to be cleaned and being applicable to both acidic and alkaline environments. The arrangement direction of the elastic limit columns is perpendicular to the movement direction of the locking plate, shortening the length of the elastic connecting member, so that the structural strength of the elastic connecting member made of plastic or rubber meets the usage requirements. And by providing the rollers and the locking inclined blocks, the situation where the elastic connecting member made of plastic or rubber is not strong enough to support the locking plate is prevented.

A driver including: an ejection part to which a fastener is supplied; a driver blade which moves from a first position toward a second position and drives the fastener into a driven member; and a rack provided to the driver blade. The driver further includes: a rotary component engaging with the rack and moving the driver blade from the second position to the first position; and a lock plate engaging with the rack. The driver blade moves from the second position to the first position while the rotary component rotates once, the rotary component is released from engaging with the rack after the driver blade moves from the second position to the first position, and moves from the first position to the second position, and the lock plate is engageable with the rack when the driver blade stops before reaching the second position from the first position.

The invention discloses a rat caudal vertebra intervertebral disc degeneration molding device which comprises an anesthesia box, a tail outlet hole is formed in the anesthesia box, a bearing table is arranged on the outer side of the anesthesia box, an arc-shaped locking plate is slidably installed on the bearing table, a containing groove is formed between the arc-shaped locking plate and the bearing table, and a sleeve is slidably installed on the arc-shaped locking plate in the circumferential direction; a puncture cylinder is in threaded connection with the interior of the sleeve, a graduated scale is axially arranged on the outer side wall of the puncture cylinder, a puncture needle is installed in the puncture cylinder and comprises a base and a needle head connected to the base, the base is installed in the puncture cylinder, the needle head sequentially penetrates through the puncture cylinder, the sleeve and the arc-shaped locking plate and then extends into the containing groove, and a bandage is arranged above the bearing table. An X-ray machine is arranged on the periphery of the bearing plate. The invention further discloses a rat caudal vertebra intervertebral disc degeneration modeling method using the rat caudal vertebra intervertebral disc degeneration modeling device. According to the rat caudal vertebra intervertebral disc degeneration modeling device and method, few tools are used, the process is simple, and application and popularization are convenient.

The present invention relates to the technical field of drilling, positioning and clamping of automobile parts, and specifically discloses an automatic positioning and clamping device for processing automobile parts, comprising a machine body and a workbench fixedly installed on the top of the machine body and used for placing a volute, a gantry fixedly installed on the top of the workbench, a driving member 1 fixedly installed on the top of the gantry, an output end of the driving member 1 slides through the gantry and is fixedly installed with a lifting plate, and a variable-diameter multi-axis drilling unit, a multi-stage locking unit and an inner support fixing unit are provided at the bottom of the lifting plate, and a tight overall structure is formed between the abutment plate, the L-shaped plate, the locking plate and the inner support plate, thereby realizing multi-stage fixing and multi-stage locking reinforcement operations of the volute, and the double multi-stage design not only enhances the rigidity and stability of the entire fixing structure while ensuring the positioning and clamping effect, but also ensures that during high-precision drilling operations, the volute remains absolutely stationary and will not be displaced due to external interference, thereby greatly improving the drilling accuracy.

The invention relates to the technical field of automobile part drilling, positioning and clamping, and particularly discloses an automatic positioning and clamping device for automobile part machining, which comprises a machine body and a workbench fixedly mounted at the top of the machine body and used for placing a volute, a portal frame is fixedly mounted at the top of the workbench, and a first driving part is fixedly mounted at the top of the portal frame; the output end of the first driving part slidably penetrates through the portal frame and is fixedly provided with a lifting plate, a variable-diameter multi-shaft drilling unit, a multi-stage locking unit and an inner supporting fixing unit are arranged at the bottom of the lifting plate, and a tight overall structure is formed by an abutting plate, an L-shaped plate, a locking plate and an inner supporting plate. By means of the double-multistage design, the positioning and clamping effects are guaranteed, meanwhile, the rigidity and stability of the whole fixing structure are enhanced, it is guaranteed that in the high-precision drilling operation, the volute is kept absolutely static, displacement caused by external interference is avoided, and the machining precision of the volute is improved. And therefore, the drilling precision is greatly improved.

The invention belongs to the technical field of anchoring part fastening structures, and particularly relates to a fabricated anchoring part fastening structure for supporting a heavy pipeline of a steel structure factory building, a first anchoring part and a second anchoring part are mounted on a steel beam, a first locking screw is screwed on the first anchoring part, and the top end of the first locking screw is rotatably connected with a first locking plate; second locking screws are connected to the second anchoring parts in a threaded mode, second locking plates are rotationally connected to the top ends of the second locking screws, an insertion barrel is fixedly installed on the top of the side wall of each first anchoring part, a guide rod is fixedly inserted between every two opposite insertion barrels, and a first connecting anchor frame is installed below each first anchoring part. A second connecting anchor frame is installed below each set of second anchoring parts, two steel wire ropes are installed between the two first connecting anchor frames, a lifting frame is fixedly installed at the bottom ends of the second anchoring parts, and a pipeline hoop is fixedly installed at the bottom end of the lifting frame. The structure is high in strength and dispersive in stress, local deformation is avoided, the I-shaped top plate is combined to abut against the steel beam, and the fastening degree of the second anchoring part and the steel beam is improved.

An ultrasonic flow measurement device is provided, including a housing and an upper cover connected to the housing. A first end of the housing includes an elongated hole, and a second end includes a locking slot, both arranged horizontally. A first end of the upper cover includes a pin shaft adapted to the elongated hole, and a second end includes a locking plate adapted to the locking slot. The device enables horizontal insertion between the upper cover and the housing via a sliding and rotating mechanism combined with a plug-in structure, simplifying the design and enhancing connection stability. To open the device, the upper cover must be pushed horizontally to disengage the locking plate from the slot, which reduces the risk of accidental opening due to unintended contact, thereby enhancing the reliability of the connection between the upper cover and the housing.

The invention relates to the technical field of low-voltage switch cabinets, in particular to an interlocking mechanism, a hand-cranking movable plug-in type assembly and a hand-cranking movable plug-in type unit. The interlocking mechanism comprises a position interlocking mechanism and a closing interlocking mechanism; the rear end of a transition connecting rod of the closing interlocking mechanism is in linkage fit with a position locking plate through a linkage structure, and an interlocking part is arranged on a closing interlocking plate and used for being matched with the front end of the transition connecting rod to achieve closing interlocking. A plugging assembly rack of the hand-cranking movable plugging assembly is located behind the closing interlocking mechanism, and the rear end of the closing interlocking support is installed at the front end of an assembly rack bottom plate of the plugging assembly rack. The beneficial effects are that the closing interlocking mechanism and the position interlocking mechanism can be arranged front and back; the hand-cranking movable plug-in type unit can be maintained without power failure, the depth of a unit chamber can be 300mm, the depth of a plug-in assembly rack can be 200mm, and the hand-cranking movable plug-in type unit has the functions of isolation-connection position positioning, hand-cranking propelling mechanism locking, circuit breaker switching-on locking and circuit breaker switching-off unlocking.