38results about How to "Prevent random opening" patented technology

A building security system disclosed by the present invention comprises an identity verification module used for pre-storing the fingerprint information of the residents, receiving the fingerprint information provided by the residents and identifying the identity information and the pre-stored fingerprints; an information reception device used for transmitting a signal to an access control host after the identity verification module identifies the fingerprints; a cipher input device used for inputting a preset cipher manually; the access control host used for controlling an electric lock to open and close; and the electric lock used for controlling a door to open and close finally. According to the present invention, a fingerprint identification technology is used to open a door, and the foreign personnel are prevented from opening randomly, thereby achieving an antitheft purpose. When a fire hazard occurs, the fire hazard alarm can be realized, the fire brigade can receive the alarm at first time to rescue rapidly, at the same time, the access control host can control the electric lock to open directly without the help of other modes, when the fire hazard occurs, the door is opened, so that the personnel are convenient to escape.

The invention discloses a method and a system for controlling opening of a door. The method is characterized by after acquiring an ROI (Region Of Interest) image of a body, calculating a height of thebody based on the ROI image of the body, on the one hand, judging whether the body is a child based on the height of the body, on the other hand, performing body classification on the ROI image of the body through a convolutional neural network model; controlling a door to be kept locked when both a judging result based on the height of the body and a body classification result based on the convolutional neural network model show that the body is a child, and otherwise, controlling the door to be unlocked. The method of the invention has the beneficial effects that: the method adopts a judging mode combining height with age; on the one hand, through judgment based on the height, a non-child group can be excluded from the height; on the other hand, through the convolutional neural network,characteristic values correlated with the age, such as clothing characteristics, appearance characteristics, height characteristics, and weight characteristics of people, are extracted to judge the classification, so as to clearly exclude the non-child group from the age, so that a classification result is close to fact and accurate, thereby preventing the child from opening the door at will, andavoiding occurrence of potential hazards.

The invention discloses an opening prevention electric meter box for an intelligent electric meter, and relates to the technical field of intelligent electric meters. A box cover is arranged on a box body through a rotating shaft, a heat dissipation plate is arranged inside the box body, a heat dissipation fan is arranged on the heat dissipation plate, an electromagnetic lock connection device is arranged on the inner side of the box cover, a lock buckle is arranged on the inner side of the box body, a lock connection rod of the electromagnetic lock connection device is matched with the lock buckle, a power source configuration device, an alarm device and a relay are arranged inside the box body respectively, a power source plug-in connector is arranged on the box cover, the power source plug-in connector is connected with the power source configuration device through a wire, the power source configuration device is connected with one end of the relay coil and one end of a relay normally-open contact through wires respectively, the other end of the relay normally-open contact is connected with the alarm device, and the other end of the relay coil is connected with the electromagnetic lock connection device. The opening prevention electric meter box can be prevented from being opened randomly, protect the electric meter effectively, and is convenient to use and easy and convenient to operate.

The invention provides an information management system for Maotai-flavor base liquor based on RFID, and the system comprises an RFID sensor module, RFID reading equipment, a data processing module, a system control module, an execution mechanism module, a system clock module, a wireless transmission module, a video collection module, an environmental data collection module, an entrance guard control module, and a system monitoring center module. The system can achieve the unique identification of identity of each jar of base liquor, achieves the identity management of persons who enter into a wine cellar, can achieve the recording of a recorder, can achieve the legal operation management of the wine jar, and achieves the monitoring and recording of the operation of the wine jar. Meanwhile, the system can collect the information (alcohol concentration, temperature and humidity), and judges whether an alarm is given or not according to the information. The system also achieves the effective sealing of the wine jar, and prevents the wine jar from being opened freely. Meanwhile, the system scientifically collects the identity data of the base liquor, achieves intelligent data processing and supervision, and provides basic data support for the tracking of the quality of liquor in the whole life cycle in the whole process of production.

The invention discloses a limiting antitheft alarming device for a building sliding window and a use method of the limiting antitheft alarming device. The limiting antitheft alarming device comprises a limiting lock and an electronic alarm. A mechanical structure of the limiting lock and an electric appliance structure of the electronic alarm are combined, and the mechanical structure is linked with the electric appliance structure, so that the purposes of limiting locking of the sliding window and detection of a stranger bursting into a room by breaking the window are effectively achieved; the limiting lock conducts self locking on a sliding block through a cam, the position of the sliding window is fixed, moving of the sliding window is limited, a child in the room is prevented from opening the window at will, and accidental falling accidents are prevented; and power is supplied to the electronic alarm through a photovoltaic cell panel, a special external power source is not needed, laser induction is achieved, when an emitted laser beam is blocked, loud alarming sounds can be emitted out, and therefore the stranger bursting into the room can be detected, and antitheft alarming can be conducted.

The invention discloses a refrigerator with a sliding side opening door. The refrigerator comprises a refrigerator body and a door body, wherein a sliding matching structure is arranged between the refrigerator body and the door body; the sliding matching structure at least comprises a slideway arranged on the refrigerator body or the door body, and a sliding block which is connected to the other one of the refrigerator body and the door body and can move along the slideway; the sliding bock is supported by a connection rod; the connection rod and the extending direction of the slideway form a certain included angle, and the included angle can be changed along with the movement of the door body; when the included angle is an initial value, the door body is closed; when the included angle exceeds the initial value and less than 90 degrees, the door body slides relative to the contact surface of the refrigerator body; and when the included angle is equal to 90 degrees, the door body is separated from the contact surface of the refrigerator body. In a closed state, the door body of the refrigerator is in surface contact with the refrigerator body, and the opening resistance is relatively high, so that a kid in a family can be effectively prevented from randomly opening the refrigerator door; and the process of opening the door body of the refrigerator is smooth without any blockage as the door body is separated from the contact surface of the refrigerator body.

The invention relates to fire hydrants, in particular to an electric locking device for a water getting valve of an outdoor fire hydrant. The electric locking device comprises a bidirectional self-hold electromagnet, a ratchet wheel and a pawl. The bidirectional self-hold electromagnet is installed on a valve body of the fire hydrant through an electromagnetic support. The ratchet wheel is installed on a valve rod of the fire hydrant. The pawl matched with the ratchet wheel is installed on the electromagnet support through a pawl shaft. The pawl shaft is further provided with a pawl positioning spring. One end of the pawl positioning spring is connected with the pawl, the other end of the pawl positioning spring is connected with an electromagnet shaft on the bidirectional self-hold electromagnet, and the electromagnet shaft is further provided with an annular magnet. A magnetic-control feedback switch is correspondingly arranged at the tail end of the electromagnet shaft. When the electromagnet shaft approaches the magnetic-control feedback switch, the magnetic-control feedback switch is turned on, and when the electromagnet shaft gets away from the magnetic-control feedback switch, the magnetic-control feedback switch is shut off. When the bidirectional self-hold electromagnet is electrified, the pawl acts to clamp the ratchet wheel so that the valve rod cannot rotate, and a valve is locked. The electric locking device is simple in structure, convenient to operate and high in practicability, and no vulnerable and consumable device exists.

The invention discloses a learning article storage box. The learning article storage box comprises a box body, the top of the box body is movably connected with a box cover by hinges, springs are fixedly connected to bottoms of two sides of the inner wall of the box body, and inclined blocks are fixedly connected to opposite sides of two springs, a sliding rail is arranged at the inner side of theinclined block, a first slide block is fixedly connected to the bottom of the inclined block, and a first chute is arranged on both sides of the bottom of the inner wall of the box body. Through cooperation usage of the springs, the inclined block, the slide rail, the first slide block, the first chute, a connection column, pulleys and a movable plate, the box solves the problem that the existinglearning article storage box does not have a shock absorption buffer function, The learning article storage box has the advantage of shock absorption buffering function, if the transfer is carried out after the storage is completed, the learning article may not be damaged due to bumps on the road, which cannot bring great inconvenience to students' learning, and the box is conducive to the use ofstudents and worth promoting.

The invention discloses an anti-theft lock. The anti-theft lock comprises a shell; a core sleeve and an inner core form a lock core; an open hole is formed at the middle of the shell; the inner core is inserted into the core sleeve; the core sleeve is inserted into the open hole; an internal pressing limiting block is inserted into an insertion hole; a bit is inserted into a trench hole; unlocking blades are located at the outer side of the inner core; a clamp spring is located at one side of the shell and sleeves one end of the core sleeve; sliders and the internal pressing limiting block are respectively provided with an inner pressing element; the sliders are inserted into slide grooves; the slide grooves and the insertion hole are located on the shell; the inner core is provided with a plurality of blade pits for accommodating the unlocking blades; two sets of unlocking blades are arranged in each blade pit; the two sets of unlocking blades are of a complete circle structure which is formed through combining four semicircle-shaped structures; one inner circular arc of each unlocking blade is provided with a limiting protrusion; the limiting protrusions are matched with tooth slots of one key; and the edges of each set of unlocking blades are provided with a plurality of unlocking grooves. The anti-theft lock of the invention can be prevented from being unlocked freely, and anti-theft performance can be improved, and error unlocking rate can be decreased.

The invention provides an annular coded lock. The annular coded lock comprises a semi-circular-ring-shaped first lock ring and a semi-circular-ring-shaped second lock ring, one end of the first lock ring is in hinged connection with one end of the second lock ring, a lock latch device is arranged at the other end of the first lock ring and comprises a box body, the box body is internally hollow and is internally provided with a rotating shaft, the rotating shaft is provided with three rotating wheel assemblies, the rotating wheel assemblies comprise driving wheels and code wheels, the drivingwheels are rotatably connected to the rotating shaft, the code wheels are connected to the driving wheels in a sleeving mode, the code wheels and the driving wheels are fixedly connected, notches areformed in the edges of the driving wheels, a movable plate is further included and arranged in the box body, the movable plate is arranged between the rotating wheel assemblies and the bottom of the box body, protrusions capable of being engaged with the notches are arranged on the face, facing the rotating wheel assemblies, of the movable plate, a reset spring is arranged between the movable plate and the bottom of the box body, and a protruding locking plate is arranged on the face, back on to the rotating wheel assemblies, of the movable plate.

The present invention relates to a device capable of preventing refrigerator door from freely opening. It includes the following several portions: brake which is placed in top portion or bottom portion of refrigerator storage space; latch hook which is placed on one side of refrigerator door which can be used for opening and closing said storage space and can be turned, under the condition of that said refrigerator door is closed said latch hook can be used for latching the brake; and brake elastic member, in order to prevent the latch hook from freely moving said brake elastic member can give a certain elastic force to said latch hook. Besides, said invention also provides the concrete structure of said brake and its working principle.

The invention discloses a door/window security and protection system which comprises a password input device, a door/window control host, an electric lock and an identity information storage module, wherein the password input device is used for manually inputting a password so that the door/window control host controls the electric lock to open; the door/window control host is used for controlling the opening and closing of the electric lock; the electric lock is used for finishing the opening and closing of a door/window finally; the identity information storage module is used for storing the fingerprint of a user in advance. According to the system disclosed by the invention, the opening and closing of the door/window are finished by a fingerprint identification technology, and foreign people are prevented from opening the door/window at will so as to realize an antitheft effect; moreover, the door/window also can be opened by inputting a digital password; in the case of fire, fire alarm can be realized, the door/window control host can directly control the electric lock to open without using other ways, and the door/window is opened during a fire, so that people can escape conveniently.

The invention discloses a novel bolt for a classroom of a school. The novel bolt is specially used for a door of the classroom of a middle or primary school. During installation, a bolt piece A positioning magnetic stripe is fixed on a door body, and a bolt piece B positioning magnetic stripe is fixed on a door frame; a bolt piece A is connected with the bolt piece A positioning magnetic stripe onthe whole by means of a magnetic force, and a bolt piece B is connected with the bolt piece B positioning magnetic stripe by means of a magnetic force, so that the whole bolt piece A and the whole bolt piece B can be conveniently assembled and disassembled. Therefore, the bolt is prevented from being opened by children at random.

The invention provides a locking structure of an embankment height limiting portal frame. The locking structure comprises a lock box, a spring bolt and a lock rod, the lock box is fixedly connected inthe cross beam of the embankment height-limiting portal, a moving slideway allowing the spring bolt to reciprocate is arranged in the lock box, the spring bolt is matched with the lock box, a lock groove matched with the spring bolt is formed in the stand column of the embankment height-limiting portal, and a locking hole is formed in the end face of the spring bolt; a lock hole allowing the lockrod to enter is formed in the bottom of the lock box, the lock rod comprises a pipe body, a flexible shaft and a lock head, the outer contour of the lock head is matched with the locking hole of thespring bolt, a traction groove is formed in the outer wall of the lock head, the lock head is installed at the initial end of the pipe body and fixedly connected with the initial end of the flexible shaft, and the flexible shaft is sleeved with the pipe body. The locking structure of the embankment height limiting portal frame can be opened, so that the cross beam and the stand column of the embankment height limiting portal frame are separated, large emergency rescue and disaster relief vehicles are allowed to pass through an embankment top road, and the main structural strength of the locking structure of the embankment height limiting portal frame is also particularly enhanced.

The invention discloses a non-standard tool facilitating workpiece movement. The non-standard tool comprises a main body, wherein the outer surface of the upper end of the main body is fixedly provided with a first placing box, and connecting bolts are fixedly installed on the outer surface of the upper end of the first placing box; rotating discs are fixedly installed on the outer surfaces of theupper ends of the connecting bolts, and second control gears are fixedly installed on the outer surfaces of the lower ends of the connecting bolts; second wheel teeth are fixedly installed on the outer surfaces of one sides of the second control gears, and limiting columns are arranged on one sides of the second wheel teeth; and second tooth grooves are formed in the outer surfaces of one sides of the limiting columns, and first placing grooves are formed in one sides of the connecting bolts. According to the non-standard tool facilitating workpiece movement, a workpiece can be prevented frombeing damaged by collision in the moving process, the operation is more convenient and labor-saving when the workpiece is taken down, so that equipment is quickly and flexibly moved when moved, and the equipment can be stably placed at a fixed position when placed.