43results about How to "Eject smoothly" patented technology

The invention discloses a roller brush fast dismounting and mounting device and a cleaning instrument thereof. The roller brush fast dismounting and mounting device comprises an ejection device and a position limiting device, wherein the ejection device exerts axial ejection elastic force on a roller brush; the position limiting device converts the elastic force into elastic potential energy and limits the axial displacement of the roller brush; the ejection device comprises an ejector pin and a pressure spring; the ejector pin is arranged inside an axial blind hole formed in one end of the roller brush; the ejector pin is provided with a flange; the pressure spring exerts axial elastic force on the ejector pin through abutting the flange; an ejector pin press plate for limiting the ejector pin to be disengaged from the blind hole is arranged in the opening position of the blind hole; one end of the roller brush is connected with a bearing seat; the roller brush has the rotating degree of freedom for rotating around the self axial line relative to the bearing seat; the position limiting device is provided with a release key with a projected part and a bearing seat with a position clamping groove; the projected part is matched with the position clamping groove. By using the device, the dismounting or the mounting of the roller brush can be realized only through one step; the cleaning of the roller brush is convenient; the roller brush mounting and dismounting efficiency is further improved; the operation environment is improved.

The invention belongs to the technical field of clothes treatment, and aims to solve the problem that a clothes treatment agent of existing clothes treatment equipment is inconvenient to put, and accordingly the user experience is poor. Therefore, the invention provides a clothes treatment agent putting assembly used for the clothes treatment equipment and the clothes treatment equipment. The clothes treatment equipment comprises a body; the clothes treatment agent putting assembly comprises a storage container and a putting device, the storage container is fixedly arranged in the body and isused for storing a clothes treatment agent; the putting device can move relative to the storage container and is used for putting the clothes treatment agent; the clothes treatment agent putting assembly further comprises a sleeve device, one end of the sleeve device is communicated with the putting device, and the other end of the sleeve device is communicated with the storage container so that the clothes treatment agent in the putting device can also flow into the storage container while the putting device can move relative to the storage container. When the putting device moves, the sleeveassembly cannot be blocked and wound, so that user operation is facilitated, and the user experience is improved.

The invention discloses a multi-rotor unmanned aerial vehicle emergency parachuting device with an adaptive ejection angle adjustment function and a method. The device comprises a parachute cabin, a parachute cabin cover, a parachute, a parachute throwing spring, a lock bolt, an unlocking steering engine, a microcontroller, an inertial motion measuring unit and a spring support rotating device. The parachute cabin cover is fixed to the parachute cabin under the combined action of the unlocking steering engine and the lock bolt, and the parachute cabin is fixed to a multi-rotor unmanned aerial vehicle; the parachute, the parachute throwing spring, the microcontroller, the inertial motion measuring unit and the spring support rotating device are arranged in a structure formed by the parachute cabin and the parachute cabin cover; the microcontroller is connected with the unlocking steering engine, the inertial motion measuring unit and the spring support rotating device, one end of the parachute throwing spring is fixed to the spring support rotating device, and the other end of the parachute throwing spring is fixed to the parachute. By adaptively adjusting the spring ejection angle, it can be guaranteed that the parachute is ejected vertically upwards even when the posture of the multi-rotor unmanned aerial vehicle has large deflection or inclination.

The invention discloses a charging gun with the automatic disengaging function. The charging gun comprises a charging gun body. An automatic disengaging device, an alarming device and a microprocessor are arranged in the charging gun body. The automatic disengaging device and the alarming device are connected with the microprocessor. The microprocessor is connected with the charging gun body. Through the automatic disengaging device and the alarming device, prompting and automatic disengaging can be achieved when a car owner drives a car away without pulling out the charging gun, and damages to the charging gun, and a charging cable and charging equipment connected with the charging gun are avoided. In the charging process, the automatic disengaging function is stopped, and the risks caused by power-on disengagement of a charging gun head are avoided. The charging gun disengagement function achieved through a miniature motor and a supporting rod is safer than that achieved through spring ejecting, and smooth disengagement of the charging gun can be better guaranteed. The detection result of a tension and pressure sensor is more precise compared with the situation that a mechanical structure is used for detecting the situation that the car owner drives the car away without taking down the gun head, and misjudgment caused by cable bending can be avoided.

The invention relates to a catapulting rollout device and a catapulting system of an unmanned aerial vehicle. The catapulting rollout device of the unmanned aerial vehicle is arranged on a catapulting frame and used for bearing the unmanned aerial vehicle and catapulting the unmanned aerial vehicle. The catapulting rollout device comprises a locking mechanism, a rollout frame arranged on a sliding track of the catapulting frame and used for bearing the unmanned aerial vehicle and sliding wheels arranged at the bottom ends of the rollout frame, wherein the locking mechanism is arranged at the end, close to the initial end of the catapulting frame, of the rollout frame and used for locking the unmanned aerial vehicle at the initial end of the catapulting frame and can ensure that the rollout frame slides on the sliding track and accordingly drives the unmanned aerial vehicle on the rollout frame to slide. Direct contact between the unmanned aerial vehicle and the catapulting frame is avoided, it is ensured that the catapulting frame structure is not damaged due to catapulting, and the catapulting rollout device is durable and stable to use and can catapult the unmanned aerial vehicle in a long-time and high-efficiency mode.

The invention provides a feed dryer, and relates to the field of feed processing. A feed drying box comprises a feeding plate, a fixed cylinder, a rotating cylinder, a mounting frame, a driving motor and an air blower; the feeding plate is rotationally connected with the outer wall of the top end of the fixed cylinder; the fixed cylinder is movably connected with the rotating cylinder; a mounting groove is formed in the outer wall of one side of the rotating cylinder; a movable plate is arranged on the inner wall of the mounting groove; the driving motor is arranged on the outer wall of one side of the mounting frame; an output shaft of the driving motor is connected with a rotating rod through a coupler; one end of the rotating rod is fixedly connected with the outer wall of one side of the rotating cylinder; the air blower is arranged on the outer wall of the other side of the mounting frame; and an air injection mechanism is arranged on the outer wall of one end of the rotating cylinder. According to the feed drying box, pop-up blocks in swing plates can adjust the size degree of feed cakes, so that abrasion to common feed can be reduced, the damage rate of the feed in the drying process is reduced, and the production quality is improved.

The invention provides a goods distribution cabinet. The goods distribution cabinet comprises a cabinet body, a controller and at least one pushing mechanism, wherein the inside of the cabinet body is partitioned into a goods pickup region and at least one storage region; the goods pickup region is used for receiving fallen goods to be picked up; the pushing mechanism is arranged in each storage region; each pushing mechanism comprises a push plate, an elastic element, a fixed plate and an electrically-controlled locker; the electrically-controlled locker comprises a first part and a second part; one end of the elastic element and the first part are fixedly arranged on the push plate; the other end of the elastic element and the second part are fixedly arranged on the fixed plate; the fixed plate is fixedly arranged on the peripheral side walls of the storage region; the first part is locked on the second part; after the first part or the second part receives a control instruction sent by the controller, the first part and the second part are unlocked, and the push plate pushes the goods to be picked up outwards under the action of the elastic element. The goods distribution cabinet is not limited by the sizes of goods; by adopting the goods distribution cabinet, the goods sorting time can be saved, and the goods distribution efficiency is increased.

The invention discloses portable water emergency equipment. The portable water emergency equipment comprises a pressure bearing device, a gas bag, a fixing device and a fixing strap; the gas bag is fixed into the pressure bearing device, compressed gas is introduced into the air bag, and the pressure bearing device is fixed to a carrier through the fixing strap and provided with a spring locking device; the fixing strap is fixed and locked by the fixing device. By means of the portable water emergency equipment, the problem that emergency equipment is not easy to carry in the swimming time can be solved, the whole structure is light, the size is small, and the compressed gas is introduced into the gas bag in advance, so that the pressure inside the gas bag is greater than the external atmospheric pressure, when an upper casing is opened, the gas bag can expand to the maximum size instantly, the human body is lifted up rapidly to float on the water surface, and the equipment has the advantages of being safe, reliable, convenient to carry and the like. The portable water emergency equipment is widely applied to such scopes as water self rescue and water emergency rescue.

The invention discloses a container type movable charging system. The container type movable charging system comprises a movable house body, wherein the house body is cuboid; an operation monitoring region, a fire fighting equipment storage region, a charging region and a charging tray transferring region are successively arranged in the house body in the length direction of the house body from one end to the other end; the operation monitoring region is separated from the fire fighting equipment storage region through a fireproof door; the fire fighting equipment storage region and the charging region communicate with the charging tray transferring region; charging trays are transferred in or out of the house body at the charging tray transferring region; the charging region and the charging tray transferring region are respectively provided with stacking machines to transfer charging trays between the charging region and the charging tray transferring regions. The container type movable charging system is small in floor area, low in degree for land reclamation, short in construction cycle, low in construction cost, and convenient to transport, mount and debug.

The invention discloses a multifunctional direct and quick lock and overcomes the functional defects and inconvenience of similar locks. A main spring bolt shifting fork with retreating-stopping positioning function and a function control board are respectively sleeved on the two sides of a main spring bolt connecting board through a rotation shifting block connected with an external control knob rotating shaft installed on an internal handle board and can be used for completing corresponding opening and closing, as well as function switching; the main spring bolt connecting board and a block shell are connected by a torsional spring for realizing the closing and opening of a main spring bolt and the moving automation of a rear half part; a latch bolt is installed beside the main spring bolt through a latch bolt connecting board in a relatively independent way, so that shifting blocks arranged on upper and lower lock shells by the shifting of a handle rotating shaft and shifting forks sleeved on the shifting blocks shift the latch bolt connecting board to open the latch bolt in a handle; meanwhile, an internal handle can shift the main spring bolt shifting fork and open the main spring bolt in the same way; in addition, the main spring bolt can be locked by internal and external handles, as well as the shifting blocks and the shifting forks. The invention has the advantages of simple structure, multiple functions, convenience and quick use and can be widely applied to all kinds of doors.

The invention discloses a search and rescue signal buoy for diving and relates to the technical field of diving equipment. The search and rescue signal buoy comprises a bracelet body and a compressed gas cylinder on one side in the bracelet body, wherein a connecting pipe matched with the compressed gas cylinder is arranged in the bracelet body. The search and rescue signal buoy is advantaged in that gas in a compressed gas cylinder enters a gas bag through a connecting pipe, when a passive extrusion plate deflects to open the compressed gas cylinder, the bottom of the passive extrusion plate deflects in the opposite direction, the bottom of the passive extrusion plate extrudes and drives a sliding frame to move, then the sliding frame drives a telescopic limit rod to slide, an end of the telescopic limit rod slides out of a card block so that the end of the telescopic limit rod is separated from the limit of the clamping block; when the compressed gas cylinder is opened, the clamping block of a cover plate is separated from limiting, the cover plate is better extruded to be opened when the air bag is inflated and expanded, the expanded air bag is more smoothly popped out of the air bag cabin, a problem that the personal safety of divers is affected due to the fact that the air bag cannot pop up in time is effectively solved.

The invention belongs to the technical field of clothes treatment, and aims to solve the problem of poor user experience caused by inconvenient delivery of clothes treatment agents of existing clothestreatment equipment. To this end, the invention provides a clothes treatment agent delivery assembly for clothes treatment equipment and the clothes treatment equipment. The clothes treatment equipment comprises a body, and the clothes treatment agent delivery assembly comprises a storage container and a delivery device, wherein the storage container is fixedly arranged in the body for storing aclothes treatment agent. The clothes treatment agent delivery assembly further comprises a communication device, wherein the communication device is arranged to communicate the delivery device with the storage container and allow the delivery device to move relative to the storage container. The delivery device can be communicated with the storage container through the communication device, and thus when the delivery device is in an extended position, a user can inject the clothes treating agent into the storage container by delivering the clothes treating agent into the delivery device, so that the delivery operation of the user is more convenient, and the user experience is improved.

The invention discloses a cubic star catapult. The cubic star catapult comprises a main body outer shell; a mounting joint is fixedly mounted on the outer surface of the lower end of the main body outer shell; an unfolding in-place locking module and an unfolding in-place feedback module are mounted on the outer surface of the lower end of the main body outer shell; a torsion spring is fixedly mounted on the outer surface of one side of the main body outer shell; a rotating end cover is arranged on the outer surface of one side of the main body outer shell; and a locking release mechanism anda first micro switch are fixedly mounted on the outer surface of the upper end of the main body outer shell. The locking release mechanism is used for relieving constraint of the rotating end cover; the rotating end cover is unfolded under the effect of the torsion spring; cubic stars stored in the main body outer shell outwards slide along a linear chute guide rail under the effect of a launchingmechanism; in the sliding process, the rotating end cover is rotated by a certain angle for locking; and in the whole unfolding process, rotating end cover unfolding beginning, rotating end cover unfolding in-place and spring release in-place signals are returned back to a rocket to guarantee successful separation of the cubic stars from the catapult.

The invention relates to the technical field of tapping equipment, in particular to a tapper with a waste ejection structure. The tapper comprises a positioning rod with a drill bit at the end portionand a tapping piece, the tapping piece comprises a connecting plate arranged on the positioning rod in a sleeving manner, a cylinder body arranged on the connecting plate and axially parallel to thepositioning rod, and teeth arranged at the end of the cylinder body, and a baffle and a plane spherical bearing are arranged in the cylinder body. Through holes of which the inner diameters are greater than the outer diameter of the positioning rod are formed in the baffle and the plane spherical bearing; and the plane spherical bearing comprises a tightening ring, a loosening ring and a ball arranged between the tightening ring and the loosening ring, the loosening ring is connected with the baffle through a spring, and the tightening ring is connected with the face, close to the teeth, of the connecting plate. Through the design of the plane spherical bearing and the through holes with the inner diameter larger than the outer diameter of the positioning rod, the baffle and the spring cannot rotate along with the tapping piece and the positioning rod, waste can smoothly push the baffle, and therefore the waste can be smoothly popped out through a spring structure.

The invention discloses a centrifugal sewage circular purification robot which comprises an outer tank and an inner tank. The inner tank is mounted in an inner cavity of the outer tank; the inner tankruns through the outer tank; both front and rear sides of a rotating rod are connected with the inner wall of the outer tank; a roller is mounted on the outer wall of the rotating rod; the top ends of first springs are connected with the inner wall of the roller; press-against blocks are overlapped with the inner wall of the inner tank. According to the centrifugal sewage circular purification robot, by a discharge port at the left side of the outer tank, filtered wastewater can be collected so as to lay a solid foundation for ordered execution of the subsequent filtering work; by a slidewayand a sliding block, the aim of enabling the press-against blocks to freely extend and retract in the roller is fulfilled so as to prevent influence on normal working due to jamming of the roller; bythe first springs, an effect of enabling the press-against blocks to be smoothly popped up after passing through the inner tank is achieved so as to ensure that the cleaning work can be circularly carried out and meet requirements of the modern industry for a purification device.

The invention discloses an electric hidden outward opening handle controller and a control method, which include a door lock module, a control unit, and an action unit; the action unit includes a motor; The opening handle can be ejected smoothly in extremely cold regions to ensure that the door can be opened normally.

The invention relates to the technical field of silver contact production, in particular to special-shaped silver contact continuous cold heading equipment which comprises a rack, and the rack comprises a first mounting plate and a second mounting plate; a stamping assembly is arranged on the first mounting plate, and a plurality of stamping heads are arranged on the stamping assembly; a feeding port, a transverse moving plate and a plurality of molds are arranged on the second mounting plate, a plurality of clamping assemblies are arranged on the transverse moving plate, and through cooperation of the transverse moving plate and the multiple clamping assemblies, the equipment can complete different procedures of multiple silver contact blanks at the same time, the production efficiency is remarkably improved, the clamping assemblies and the transverse moving plate move synchronously, and the production efficiency is improved. According to the silver contact blank conveying device, precise conveying of silver contact blanks among the dies is guaranteed, positioning errors possibly generated in traditional chain plate type conveying are avoided, and therefore the machining precision is improved, the clamping assembly loosens a workpiece in the stamping process, direct contact between a stamping head and the clamping assembly is effectively avoided, abrasion of the stamping head is reduced, and the service life of the device is prolonged.

The invention discloses an inflation intensity adjustable type safety gas bag for an automobile. The inflation intensity adjustable type safety gas bag comprises an automobile steering wheel and an inflating gas generation device shell. A roller electromechanical switch type gravity sensor is arranged on the left side of the inflating gas generation device shell. An ignition control circuit board is arranged on the right side of the roller electromechanical switch type gravity sensor. A coil silicon steel sheet type igniter is arranged in the ignition control circuit board. A gas generation agent is arranged outside a filter. A drying device is arranged above the gas generation agent. By the adoption of the inflation intensity adjustable type safety gas bag for the automobile, a drying effect on the gas generation agent with which the inflating gas generation device shell is filled can be achieved, the problem that the gas generation agent is located in the automobile for a long time and consequently damped and deteriorated is solved, it is guaranteed that the safety gas bag pops up smoothly in an emergency, and use is safe and convenient; and the problem that a user is harmed due to fact that the pressure of the safety gas bag is too large is solved.

The invention discloses a workpiece placing jig, and relates to the technical field of metal powder injection, the workpiece placing jig comprises a positioning cover plate covering a sintered plate, the positioning cover plate is provided with a plurality of profiling holes which penetrate through the positioning cover plate and are provided with preset intervals, and parts can penetrate through the profiling holes to be clamped into part limiting grooves of the sintered plate; the shape of the profiling hole is matched with the shape of the part so that the part can only penetrate through the profiling hole from the front face, a strip penetrating groove allowing the ceramic strip to penetrate through is formed in the side face of the positioning cover plate, the strip penetrating groove is parallel to the part limiting groove, and the groove bottom of the strip penetrating groove is communicated with the profiling hole. The method has the effects of simplifying the placing steps and improving the production efficiency and the product quality.

The present invention discloses a vehicle door handle control method, device, electronic device and storage medium, the method comprising: obtaining current environmental characteristic information, judging whether the vehicle is in a critical freezing state according to the current environmental characteristic information and preset climate verification conditions; when the vehicle is in a critical freezing state, performing a pop-up verification on the vehicle door handle; if the vehicle door handle fails the pop-up verification, sending a pop-up failure prompt message to a communication device associated with the vehicle; receiving a door handle thawing instruction sent by the communication device, and thawing the vehicle door handle according to the door handle thawing instruction. The present invention determines the frozen state of the vehicle door handle by judging the critical freezing state of the vehicle and performing a pop-up verification, and thawing the vehicle door handle according to the door handle thawing instruction, thereby achieving the technical effect of improving the efficiency of vehicle unlocking.

The invention discloses a carbon dioxide blaster, which comprises a push rod, a liquid storage pipe and an exhaust pipe. The liquid storage pipe is provided with a liquid storage chamber, the exhaust pipe is provided with an exhaust chamber, and the surface of the exhaust pipe is provided with an exhaust pipe. hole, the exhaust hole communicates with the exhaust cavity, the push rod and the liquid storage pipe are connected through the first connector, the liquid storage pipe and the exhaust pipe are connected through the second connector, and a heater is arranged on the first connector. A constant pressure shearing piece is arranged on the second connecting head, and the constant pressure shearing piece is arranged between the liquid storage chamber and the exhaust chamber. The carbon dioxide blaster can prevent the push rod from detaching and ejecting from the drill hole during blasting, avoiding damage and deformation of the push rod, and is beneficial to the recycling and reuse of the blasting pipe.

The invention relates to a UAV ejection and sliding device and an ejection system, wherein the UAV ejection and sliding device is arranged on an ejection frame for carrying a UAV and ejecting the UAV, which includes a locking mechanism, The sliding frame for carrying the unmanned aerial vehicle and the pulley arranged at the bottom of the sliding frame arranged on the sliding track of the ejection frame, the locking mechanism is arranged on the sliding frame near the ejection frame One end of the initial end of the frame is used to lock the UAV on the initial end of the catapult frame, which can ensure that the sliding frame slides on the sliding track, thereby driving the sliding of the UAV on the sliding frame, avoiding unnecessary The direct contact between the man-machine and the ejection frame ensures that the structure of the ejection frame is not damaged by ejection, durable and stable in use, and can eject drones for a long time and with high efficiency.

The invention discloses a centrifugal cyclic purification method for sewage. According to the method, a bolt at a discharge outlet formed in the left side of an outer tank is unscrewed so as to allowthe bolt to withdraw from a nut; a bottom cover at the discharge outlet formed in the left side of the outer tank is pulled out; water to be filtered is injected into a water inlet; an external powersource of a first motor is turned on so as to allow a bevel gear at the shaft end of the motor to rotate; the bevel gear drives a bevel gear ring and an inner tank body connected with the bevel gear ring to rotate, so water in the cavity of the inner tank body rotates with the inner tank body and centrifugal force is generated; and sewage passes through a filter screen at an accelerated speed forfiltering, then flows out form the discharge outlet formed in the left side of the outer tank and is then collected.

The invention relates to the field of material ejecting devices. More specifically, the invention relates to a spherical material storage and output device with a detachable base plate. The device comprises a magazine for containing materials, abase plate provided with a popup opening, a motor and a bullet poking wheel being connected with the motor and extending into the base plate. The base plate is provided with a positioning groove, the magazine is provided with two opposite openings, and one opening faces the base plate and matches the positioning groove. The magazine is detachably connected with the base plate; and the motor is arranged in the magazine. The base plate and the magazine of the device can be quickly disassembled, and the base plate can be quickly and conveniently replaced or cleaned. And when cleaning and maintenance are needed, the base plate can be easily taken out only by opening the buckles, so that the installation is very convenient after cleaning is completed.

The invention discloses a disposable mute puncture gun, belonging to the technical field of medical treatment equipment. The disposable mute puncture gun comprises a handheld tube, wherein an extension block is arranged at the top of the handheld tube, a puncture needle is installed in the extension block, a button is installed at the top of the handheld tube, the interior of the handheld tube is hollow, a movable groove is formed in the top of the handheld tube, the shape of the movable groove is matched with the shape of the button, and the button extends into the handheld tube through the movable groove. According to the invention, an annular groove is formed in the outer portion of the button, a sponge ring is installed in the annular groove, and therefore, when the button rebounds, due to the effect of the sponge ring, the button makes contact with the inner wall of the handheld tube to achieve a buffering effect; and thus, no sound is generated when the button rebounds, silencing effect is achieved, a patient cannot get scared, and the problems that when a conventional puncture gun is used, loud sound is made, the patient is frightened and effective treatment is not benefited in the prior art are solved.

The invention belongs to the technical field of clothes treatment, and aims to solve the problem of poor user experience caused by inconvenient delivery of clothes treatment agents of existing clothestreatment equipment. To this end, the invention provides a clothes treatment agent delivery assembly for clothes treatment equipment and the clothes treatment equipment. The clothes treatment equipment comprises a body, and the clothes treatment agent delivery assembly comprises a storage container and a delivery device, wherein the storage container is fixedly arranged in the body for storing aclothes treatment agent; the delivery device is used for delivering the clothes treating agent. The clothes treating agent delivery assembly further comprises a pivoting mechanism, wherein the delivery device pivots relative to the body through the pivoting mechanism; a flow channel is arranged in the pivoting mechanism; and the flow channel communicates the delivery device with the storage container. When the delivery device is pivoted and moved, the flow channel in the pivoting mechanism cannot be blocked or wound, and thus the delivery operation of the clothes treating agent is ensured to be normally carried out, the operation is convenient for users, and the user experience is improved.

The invention discloses a fuel gas plug valve, and belongs to the field of plug valves. A plug protective sleeve of a gas sensor is mounted on the upper side of a plug valve body, and an open circuitcontroller in an external chamber is electrically connected with the gas sensor through an external controller. The gas sensor transfers fuel gas leakage information to the external controller, the external controller transfers alarm information to the open circuit controller in the external chamber, and the open circuit controller in the external chamber cuts off an indoor power supply to minimize the occurring probability of risks; a fuel gas leakage auxiliary alarm mechanism is additionally arranged on the plug valve body, so a alarm gas bag can be supported by a fuel gas when fuel gas leakage occurs, and thus the alarm gas bag is subjected to self deformation to extend to the outer side of the plug valve body, the reminder is timely and obvious, the fuel gas leakage alarm can be effectively assisted, users are reminded timely to take safety measures such as overhaul, and the potential safety hazard of the gas leakage caused by improper use or installation problems is greatly reduced.

The invention provides a mute automatic lock capable of being quickly unlocked, belongs to the technical field of locks, and solves the problems that an existing key cannot unlock a latch bolt and thelike. The mute automatic lock comprises a panel, a lock body, a spring bolt, a spring bolt plate, a latch bolt, a latch bolt plate and a rotary assembly, wherein the rotary assembly comprises a transmission gear, a drive gear, a transmission part, a shifting fork and a shifting plate; the transmission gear, the drive gear and the transmission part are rotatably arranged in a concentric mode; thedrive gear is engaged with a lock cylinder gear, can rotate relative to the transmission gear, and pushes the transmission gear to synchronously rotate through an upper limiting part; outer teeth of the shifting fork are externally engaged with the transmission gear; the shifting fork and the shifting plate are arranged in the concentric mode; while positioned on a closing station or a separatingstation, a square hole rotary part can drive the shifting plate and the shifting fork to synchronously transmit or the shifting plate independently rotates; the drive gear drives the latch bolt to move through the shifting plate, so that the latch bolt retracts; and while popping up, the latch bolt plate can drive the shifting plate to return. The mute automatic lock has the advantages that the spring bolt and the latch bolt can be simultaneously opened while a key or a lever handle is used for unlocking, and unlocking is quick and convenient.