43results about How to "Implement double locking" patented technology

The invention discloses a high-voltage power distribution cabinet with anti-theft function, which comprises a left cabinet door and a right cabinet door, both of which are hinged with the cabinet body, and straight teeth are arranged on the right cabinet door bar, and the right cabinet door is fixedly connected with a slide rail, the bottom end of the spur rack is slidably connected to the slide rail, and the first gear is meshed above the spur rack. The combination with the alarm realizes the double locking of the power distribution cabinet and the function of timely alarming. After inserting the insertion rod that matches the special-shaped ring, rotate counterclockwise, and the straight rack moves to the right to release the lock on the cabinet door, and at the same time drives the The second gear meshes with the arc-shaped rack and rotates counterclockwise, disengages from the first arc-shaped sleeve, and the arc-shaped rack will drive the limit block to move down and continue to press against the top plate. When the door is broken violently, the straight rack will break and loosen the top plate. When the pressure is pressed, the spring will push the second contact piece to contact the first contact piece, and the alarm will be energized to give an alarm.

The invention relates to an accelerator and brake combined device for vehicles. In the device, a pedal is hinged above a braking vane; a gliding resistor is arranged between the pedal and the braking vane; rightward deflection of the pedal changes resistance values of the gliding resistor; the accelerator is controlled by a control device and a servomotor, so that motion directions in treading the brake and treading the accelerator can be differentiated, braking can be realized by treading the pedal downwards, and acceleration can be realized by deflecting the pedal rightwards so as to effectively avoid falsely treading the accelerator in emergency brake, and reduce traffic accidents caused by falsely treading the accelerator; and in emergency brake, the right foot can directly tread the pedal downwards for braking without changing from the accelerator pedal to the braking pedal, and a connecting rod drives the pedal to reset so as to close the accelerator. Therefore, the device shortens the time of emergency brake, shortens the brake distance, effectively reduces the probability of accident occurrence, and reduces losses of lives and properties.

The invention discloses an inward-opened type fireproof window. The inward-opened type fireproof window comprises a fixed frame and an overturning frame connected in an inward-overturning mode relative to the fixed frame. Spring hinges for driving the overturning frame to be closed are arranged between the fixed frame and the overturning frame. At least one sliding supporting assembly is arranged between the fixed frame and the overturning frame. Each sliding supporting assembly comprises an outer sleeve rod rotatably connected to the fixed frame and an inner sleeve rod rotatably connected to the overturning frame. Each outer sleeve rod is provided with a sliding groove for sliding of the corresponding inner sleeve rod. The sliding groove in each outer sleeve rod is internally rotatably connected with a locking block which is of an X-shaped structure, and the outer edge of each locking block is provided with a plurality of clamp feet. Each inner sleeve rod is provided with a clamping groove allowing the clamp feet of the corresponding locking block to be clamped in. Each outer sleeve rod is provided with a movable groove allowing the corresponding clamp feet to extent out when the corresponding locking block rotates. Each inner sleeve rod is provided with a push block for pushing the corresponding locking block to rotate. Each locking block internally comprises a temperature sensing change piece, and after the temperature sensing change pieces deform, the clamp feet of the locking blocks and the clamping grooves get separated from each other to be not clamped together.

The invention discloses a multifunctional folding cart. The cart includes a supporting panel and casters arranged at the bottom of the supporting panel. The supporting panel is of a foldable structure; the supporting panel is provided with a caster accommodating space for accommodating the casters; the casters are arranged on the supporting panel through a hinge seat. The caster is provided with afirst working position perpendicular to the supporting panel after unfolding and a second working position folded and accommodated in the caster accommodating space; at the same time, the supportingpanel is provided with a caster locking element for holding the casters in the first working position or at the second working position. According to the multifunctional folding cart provided by the invention, retraction of the pushing rod can be conveniently realized. At the same time, the supporting panel is a folding structure. When not in use, the supporting panel can be further folded to reduce the space occupied by the cart. It can also be used as a turtle car or a support plate. The function is more comprehensive and the practicability is stronger.

The invention discloses a self-locking multi-cavity hydraulic oil cylinder and an implementation method thereof. The self-locking multi-cavity hydraulic oil cylinder comprises an oil cylinder body anda piston rod. The two ends of the oil cylinder body are provided with a first cavity and a second cavity respectively. The piston rod penetrates through the oil cylinder body. The piston rod penetrates through the first cavity and the second cavity. The positions, in the first cavity and in the second cavity, of the piston rod are connected with a first piston and a second piston respectively. The first piston comprises a first half-piston and a second half-piston. According to the self-locking multi-cavity hydraulic oil cylinder and the implementation method thereof, the oil cylinder body isinternally provided with the first cavity and the second cavity, working chambers of the hydraulic cylinder are increased, different effective piston action areas can be provided, and different pressure grades can be generated; double locking can be achieved by installing first locking devices in the first piston and in the second piston, and the precision is high; and the first locking devices are arranged in the first cavity and in the second cavity, automatic unlocking is achieved when oil enters and goes out of the cavities, and the use is convenient.

The invention discloses an outward-opening type fire resisting window. The outward-opening type fire resisting window comprises a fixing frame and a turning frame, wherein the turning frame is connected in an outward turning mode relative to the fixing frame, and a spring hinge driving the turning frame to close is arranged between the fixing frame and the turning frame; a locking body is arranged at the bottom of the turning frame; a handle and a locking rod are arranged on the turning frame, and the locking rod is driven by the handle to rotate; the locking body comprises a locking case, a rotating piece, a pushing piece and a locking tongue, wherein the rotating piece is driven by the locking rod to rotate; the pushing piece abuts against a clutch of the rotating piece; the locking tongue is connected with the locking case in a slipping mode; the indoor-toward side face of the locking tongue is outdoors inclined ; and a first locking base is arranged on the fixing frame and is used for inserting of the movably locking tongue. When the turning frame is closed relative to the fixing frame, the locking tongue is drawn into the locking case, and the locking tongue is inserted into the first locking base through a first elastic piece, so that automatic locking is achieved.

The invention provides a gate lock device of vending machine, using auxiliary lock as selected component, when the user does not need the auxiliary lock, not installing the auxiliary cylindrical lock, and instead, making the bolt mechanism on the gate as standing component coupled with the handle lock, thus able to realize double locking. In the gate lock device installed with lock base, lock rod sliding up and down, handle lock and auxiliary lock, it uses the bolt mechanism as standing component and installs the bolt mechanism on the gate in advance, in the state that the auxiliary lock is installed, makes the bolt coupled with the auxiliary cylindrical lock, and in the state that there is no auxiliary lock, by the auxiliary operating rod additionally combined on the handle lock, makes the bolt coupled with the handle lock, thus realizing double locking.

The invention relates to a special lock for a double-safety container. The special lock for the double-safety container comprises a lock beam, a U groove-shaped lock catch and a lock rope, and is characterized in that a plurality of through holes are formed in the lock beam at equal intervals; the left end of the lock beam inwards bends to form a U-shaped lock groove; first inserting slots are formed in the top parts of two ends of the lock catch; a lock lug is fixed to the outer side of the top part of the left side of the lock catch and is parallel to the lock beam; a second inserting slot corresponding to the first inserting slots is formed in the lock lug; lock holes corresponding to the through holes are formed in the lock lug; the lock catch is inserted onto the lock beam through thefirst inserting slots and the second inserting slot, and is locked through the lock rope; a position of the lock catch on the lock beam is adjusted, so that a width distance between the lock groove and the lock catch is adjusted, and the special lock provided by the invention can conveniently adapt to door posts with different width distances and is wide in application range; and the lock grooveis in a U shape so as to be conveniently hooked and fixed on the door post, so that the convenience in locking is realized. The special lock for the double-safety container provided by the invention is simple in structure, firm, safe, long in service life, and worth to be popularized and applied.

The invention discloses a clamping claw type water supply device and a construction method thereof. The clamping claw type water supply device comprises a mandrel, bearings and a bearing sleeve whichare coaxially arranged in a distributed mode in sequence from inside to outside, and a high pressure water connector is installed on the side wall of the mandrel. The clamping claw type water supply device further comprises a force transmission hollow shaft which is coaxially and tightly installed in the mandrel in a sleeved mode, and the high pressure water connector is in communication with thetransmission force hollow shaft in a sealing mode. A rotating handle is arranged at the closed end of the force transmission hollow shaft, and an annular piston and a clamping claw are sequentially arranged at the open end of the force transmission hollow shaft in the axial direction. The clamping claw comprises a cylindrical part and elastic claw pieces sequentially arranged in a distributed modeat intervals in the circumferential direction of the cylindrical part, and claw piece wedge-shaped surfaces are arranged on the end parts of the elastic claw pieces. A clamping claw sleeve coaxiallysleeves the outer wall of the clamping claw, and one end of the clamping claw sleeve is fixedly connected to the end part of the bearing sleeve through a piston cylinder barrel. A wedge-shaped inner wall matched with the claw piece wedge-shaped surfaces is arranged on the inner wall of the other end of the clamping claw sleeve, and balls are disposed between the claw piece wedge-shaped surfaces and the wedge-shaped inner wall. According to the clamping claw type water supply device and the construction method thereof, the instantaneous disassembly and assembly of the water supply device and adrill pipe can be realized, high pressure resistance, simple operation and high reliability are achieved, and the drilling efficiency can be effectively improved.

The invention relates to the field of optical disk storage, and discloses a lock catch type optical disk cartridge. The lock catch type optical disk cartridge comprises a cartridge body with an opening formed in the front end and an optical disk tray arranged in the cartridge body. A disk ring used for carrying an optical disk is arranged in the middle portion of the optical disk tray. Optical disk clamping pieces are arranged on the optical disk tray and are close to the disk ring. The cartridge body is provided with a tray lock catch piece, and the tray lock catch piece can slide between a locking position and an unlocking position. When the tray lock catch piece is located at the locking position, the optical disk clamping pieces are driven by the tray lock catch piece to move towards the disk ring, so that the optical disk is clamped in the disk ring. When the tray lock catch piece is located at the unlocking position, the edge of the optical disk is not extruded by the optical disk clamping pieces. The lock catch type optical disk cartridge is simple in structure and protects the optical disk, the absolute rest of the optical disk tray and the optical disk in the optical disk cartridge is guaranteed, and the storage safety and the transportation stability of the optical disk are improved.

The invention provides a connecting device for a charging gun and a charging interface, and belongs to the technical field of electric vehicle charging. The connecting device for the charging gun andthe charging interface comprises a guide head arranged on the charging gun and a clamping assembly arranged on the charging interface, the charging gun and the guide head are connected through a flexible joint, the guide head comprises a horn clamping block, a charging base, a turntable, a pin shaft I, a pin shaft II, a connecting rod I, a connecting rod II, a motor I and a guide block, and the clamping assembly comprises a notch gear ring, a gear and a motor II. The connecting device has the advantage that the charging gun and the charging interface can be connected more firmly.

The invention discloses a cooking utensil. The cooking utensil comprises a pot body assembly; a pot cover assembly suitable for being arranged on the pot body assembly in a covering mode and capable of rotating between a cover opening position and a cover closing position around the axis of the pot body assembly; a first self-locking assembly provided with a first self-locking position for lockingthe cooker cover assembly, wherein the first self-locking assembly is located at the first self-locking position when the cooker cover assembly is located at the cover closing position so as to stopthe cooker cover assembly from rotating towards the cover opening position; and a second self-locking assembly provided with a second self-locking position for locking at least one of the first self-locking assembly and the cooker cover assembly, wherein when the cooker cover assembly is located at the cover closing position, the second self-locking assembly can move to the second self-locking position so as to strengthen stopping of rotation of the cooker cover assembly towards the cover opening position. According to the cooking utensil, double locking can be achieved, the stopping effect onthe pot cover assembly is enhanced, stopping is stable, the situation that the pot cover assembly is forcibly opened when pressure exists in the cooking utensil can be effectively avoided, and use issafer.

The invention relates to door and window accessories, and particularly relates to a crescent lock for a door or a window. The crescent lock comprises crescent moons, a handle gasket, a handle seat, a leaf spring, a push key and a spacer, wherein the crescent moons are orderly sleeved on a long column of a handle; the hand gasket includes a sleeve; the crescent moons and a handle sleeve rotate together with the long column of the handle; the handle seat is sleeved on the sleeve; two parallel planes are arranged on the long column of the handle; a plurality of strip spring blocks on the handle seat are distributed at two sides of the long column of the handle; the leaf spring is arranged on the handle seat; a plurality of bumps are arranged on the leaf spring; two grooves identical to the bumps and positioning blocks are arranged on the push key; the positioning blocks are matched with an open slot in the spacer; the push key locks the long column of the handle in a fixing manner when the positioning blocks are clamped on the open slot. Thus, a dual-lock function is achieved. The spring is replaced by the strip spring plate. Thus, the service life of the crescent lock is prolonged; the crescent lock is reasonable in structure, stable to rotate, high in safety coefficient, and convenient to install; the entire product is humanized.

The invention provides a draw-bar box wheel collection and ejection device, which comprises a framework, a driving pulling sheet, a pulling sheet spring, a lock buckle, a lock buckle spring, a piston pin, a piston case, a piston spring, a piston back cover, a wheel fork, a support rod, wheels, a wheel fork rotating shaft and a framework back cover. The whole body is divided into five sub assembly bodies according to the functions; the framework and the framework back cover form a framework assembly body with the function of providing a support base body for the whole assembly body; the driving pulling sheet and the pulling sheet spring form a driving pulling sheet assembly body with the function for providing the initial starting actions of the wheel ejection; the lock buckle and the lock buckle spring form a lock buckle assembly body with the function of locking the wheels when the wheels are collected; the piston pin, the piston case, the piston spring and the piston back cover form a piston assembly body with the function of providing torque for the wheel ejection; the wheel fork, the support rod, the wheel and the wheel fork rotating shaft form a wheel assembly body which is a final execution mechanism. The wheels are ejected out through pushing the driving pulling sheet; the wheel collection action can be completed through inwards and slightly pushing the wheels by foot.

A utility knife has a handle and a blade holder that holds a utility blade for selective removal and replacement of the utility blade. The blade holder is pivotally carried by the handle for pivotal movement in an arcuate path relative to the handle between a retracted position and an extended position.

The invention provides a lock cylinder, a lock and a lock system. The lock cylinder comprises a lock case, a lock container, a locking assembly, a limiting assembly and a lockout assembly. A locking groove is formed in the inner side wall of the lock case. At least one part of the lock container stretches into the lock case, and the lock container can rotate relative to the lock case. The lockingassembly is embedded into the lock container and arranged in the length direction of the lock container, and the locking assembly can stretch into the locking groove from the lock container in order to lock the lock container. The limiting assembly is arranged in the lock container and used for limiting the locking assembly, the limiting assembly has a limiting position and an avoiding position, when the limiting assembly is located at the avoiding position, the limiting assembly removes limiting for the locking assembly, and the locking assembly can move into the lock container and is switched from a locking position to an unlocking position. The lock case is further provided with a locking groove, and the lockout assembly is movably arranged in the radial direction of the lock container.The problems that in the prior art, a lock cylinder is poor in safety performance and large in size are solved.

The invention relates to the field of household electrical appliances, in particular to a household electrical appliance door lock system and door lock control method and a household electrical appliance. The door lock system comprises a door switch and a blocking assembly, wherein the door switch is used for unlocking or locking up a body of the household electrical appliance and a door body of the household electrical appliance; the blocking assembly is electrically connected to a controller the household electrical appliance and is rotationally connected to the body, when the household electrical appliance is in a first preset working process, the blocking assembly can rotate to the side of the door switch so as to limit the door switch to rotate to the side of the blocking assembly, the door switch is locked, so that the body and the door body are kept in a locked state. Through the blocking assembly, automatic locking and unlocking of the door switch are realized. In the drying process of a dish washing machine, the door switch is locked through the blocking assembly, so that when an external force acts on the door switch, the door switch cannot act, and the body and the doorbody are kept in a locked state, the problem a user gets a burn when the door body is opened by misoperation in the drying process of the dish washing machine is solved.

The invention discloses a locking method of a low-power dual-locking lifting track system. The low-power dual-locking lifting track system comprises a motor device which is fixed to a bracket and comprises a motor with a brake, a speed reducer and a coupler which are connected in sequence, a trapezoidal lead screw fixedly connected with the motor device and rotating under the power provided by themotor device, two lead screw nuts installed on the trapezoidal lead screw in opposite thread directions, and moving on the trapezoidal lead screw in opposite directions under the rotation of the trapezoidal lead screw, and two levers. Each lever comprises a power arm, a resistance arm and a fulcrum, each power arm is fixed to the corresponding lead screw nut, and the two fulcrums are fixed to strip-shaped holes of the bracket; and a friction plate is fixed to each resistance arm, and the two lead screw nuts move in the opposite directions to drive the friction plates on the two resistance arms to be clamped, locked or opened. The system is high in automation degree, low in labor intensity and reliable in locking.

The invention discloses a swinging board with a double-safety device. The swinging board comprises a fixed seat. A fixed column is arranged on the fixed seat. The swinging board is characterized in that a moving groove is formed in the front end of the fixed column; guide rails are arranged on the two sides of the moving groove, a moving sleeve is inserted between the guide rails, and an insertingblock is arranged on the moving groove and arranged in the guide rails; a bearing is arranged in the inserting block and internally provided with a rotating shaft, and a swinging board body is arranged on the front section of the rotating shaft; a first fixed plate is arranged on the position, below the moving sleeve, in the fixed column, and a first spring is arranged between the first fixed plate and the moving sleeve; a cross-shaped through hole is formed in the rear end of the rotating shaft, and a second fixed plate is arranged on the position, above the cross-shaped through hole, of theinner wall of the fixed column; a positioning column is arranged on the lower end face of the second fixed plate and inserted into the cross-shaped through hole; and guiding rods are arranged on thetwo sides of the fixed column, and handle rods are inserted in the guiding rods.

The invention relates to a device for protecting passengers, which is characterized by comprising a control circuit, an electromagnet YA I and a locking component, wherein the electromagnet YA I is fixed in a vehicle, and the locking component can be worn at the back of a person and is made from an induced magnetism material; the control circuit comprises a power supply, a relay KR and a first switch installed in the vehicle; the power supply, the first switch and a coil of the relay KR are sequentially connected in series to form a closed loop, and both ends of a coil of the electromagnet YAI are connected with a pair of normally open contacts krl-l of the relay KR; when the power supply is switched on and the first switch is closed, the normally open contacts krl-l of the relay KR are closed, and the electromagnet YA I generates an electromagnetic field and sucks the locking component; and when the power supply is switched off, the normally open contacts krl-l of the relay KR recover a switching-off state, the electromagnetic field disappears, and the electromagnet YA I and the locking component are separated. The invention carries out locking by a magnetic article and has simple structure and manufacturing procedure, low cost, convenient use and stable locking effect.

The invented device includes the fixed cover, the locking plate, the padlock plate, the padlock and the unlocking button. The fixed cover is mountedon the side of the circuit breaker board. The slidable locking plate with the return spring is setup in the fixed cover. With being mounted in the fixed cover, the slidable padlock plate passing through the locking plate and the slot of the padlock plate is limited on the board. The return spring also mounted on the padlock plate. When the padlock plate is drawn out outward, the padlock is locked on the padlock plate. The slidable unlocking button is mounted in the fixed cover. The stopper is extended from the unlocking button. The plate for limiting position is extended from the locking plate to lock the unlocking button.

The present invention relates to an isolation padlock device suitable for a double-power supply automatic switching switch. The isolation padlock device includes a mounting support, a main transmission shaft, a limiting sheet, a rocker arm, a locking sheet and a micro switch; the mounting support comprises a main plate and a side plate; a gap is left between the main plate and the side plate; a shaft hole is formed in the main plate of the mounting support; the main transmission shaft penetrates the shaft hole and is mounted on the main plate of the mounting support; the limiting sheet is arranged above the main plate of the mounting support and is located at the upper end of the main transmission shaft; the rocker arm is arranged below the main plate of the mounting support and is located at the lower end of the main transmission shaft; the locking sheet is mounted in the gap between the main plate and the side plate; and the micro switch is mounted on the inner wall of the side plate. With the isolation padlock device suitable for the double-power supply automatic switching switch of the invention adopted, electrical-mechanical double locking can be realized, and it can be ensured that the switch is in an isolation state. The isolation padlock device suitable for the double-power supply automatic switching switch of the invention has the advantages of simple structure, convenient operation and safe use, and can effectively prevent the occurrence of accidents and protect personal and property safety.

The invention relates to the technical field of voice recognition, in particular to a voice recognition anti-theft door. The voice recognition anti-theft door comprises a door frame and a door body, wherein the right side of the door body is rotationally arranged on the door frame through hinges, and a locking mechanism is arranged between the door body and the door frame; and a voice recognitionmechanism used for opening the door body outdoors is arranged on the door body, a manual opening mechanism used for opening the door body indoors is arranged on the door body, and an indoor locking mechanism is further arranged on the door body. According to the voice recognition anti-theft door, after a correct voice instruction is spoken out by aligning to a voice recognizer outdoors, the voicerecognizer controls a driving motor to rotate by a circle, the driving motor drives a locking pin to retract rightwards into a through hole through a half gear and disengage from a locking groove, andtherefore unlocking is achieved; or a handle is held indoors to drive a mounting shaft to rotate clockwise, the mounting shaft is driven by a second gear to enable the locking pin to retract rightwards into the through hole so as to achieve unlocking, unlocking modes are diversified, and functions are complete.