32results about How to "Realize automatic door closing" patented technology

The invention relates to a door lock assembly and a cooking electric appliance with the door lock assembly. The door lock assembly comprises an interlocking support, a piston, a spring bolt and a reset piece. The interlocking support is provided with a movement cavity extending front and back. The piston is rotationally arranged in the movement cavity in a sliding manner. A first sliding groove isformed in the side wall of the moving cavity. A first sliding block capable of extending into the first sliding groove is arranged on the piston in a sliding manner. The first sliding groove comprises a first groove section extending front and back and a second groove section, wherein the second groove section is connected with the front end of the first groove section, and the second groove section and the first groove section form an included angle. The piston is provided with a locking angle and an unlocking angle. When the piston is at the locking angle, the first sliding block is locatedon the first groove section. When the piston is located at the unlocking angle, the first sliding block is located on the second groove section. The spring bolt can drive the piston to rotate, so that the piston can switch between the locking angle and the unlocking angle. The spring bolt is connected with the piston when the piston is located at the locking angle. The spring bolt is separated from the piston when the piston is located at the unlocking angle. The reset piece exerts backward force on the piston.

The invention discloses a 5G internet-of-things multifunctional smart door with an automatic door closer. The smart door comprises a smart door body, a cloud control system and a mobile terminal; thesmart door body is composed of a door frame and a door body; the top end of one side of the door frame is provided with a controller, the middle of the top end of the front surface of the door frame is provided with a camera, and the top end of the back surface of the door frame is provided with a smoke sensor and a temperature sensor; one side of the front surface of the door body is provided with an intelligent operation panel and a first distance sensor; and the bottom end of a hand-operated lock is provided with a second distance sensor. The 5G internet-of-things multifunctional smart doorhas the beneficial effects that through an unlocking mode combining face recognition, codes with IC card recognition, the safety level is effectively improved, and automatic door closing can be achieved; automatic induction door closing is achieved through the distance sensors, remote video and voice interaction can be conducted, remote unlocking can be achieved, safety picture recording, sound recording and fire detection can be preformed, and automatic alarm can be conducted when a fire happens.

The invention discloses a method for reminding that a door is not closed by using an intelligent cat eye. The method comprises the following steps: judging the opening and closing state of the door; sending the opening and closing state of the door to the APP; when detecting that the door is not closed, starting a reminding function; and if the user determines to use the remote door closing or reach the timer threshold, starting the door closing function. When the door is closed, the opening and closing state of the door can be judged through the intelligent cat eye and the data comparator andthen sent to the APP, a user can remotely check the opening and closing state of the door, and if the door is not closed, the alarm lamp and the buzzer can be immediately started to give an alarm ormake a call to the user to remind the user to close the door or start the electric door closer to close the door; when the timer threshold value is reached, if the door is still not closed, the electric door closer can be automatically started to close the door, and the problems that when people go in and out of the home, the door is forgotten to be closed due to poor memorability or hurry time, the door closing state cannot be determined, the home is stolen due to the fact that the door is not closed, and property damage is caused are solved.

The invention discloses an intelligent cabinet for object temporary storage and a control system thereof, and relates to the technical field of intelligent cabinets. The intelligent cabinet comprisesa cabinet body, wherein the cabinet body is hinged to a cabinet door through a hinge rod, the cabinet body comprises a locking face making contact with the cabinet door and a storage cavity, and one annular lock nose is fixed to the side face of the cabinet door; and rotating openings are formed in a top plate and a bottom plate of the cabinet body correspondingly, the rotating openings are rotationally connected with the hinge rod, and one clockwork spring is fixed between the end of the hinge rod and each rotating opening. According to the intelligent cabinet for object temporary storage andthe control system thereof, an opened cabinet door is automatically closed through the clockwork spring, after an ultrasonic sensor detects that the cabinet door is closed, a microprocessor controlsa first electromagnet to act, and a locking rod and the annular lock nose form locking fit and release the locking fit, so that automatic door closing and locking of the intelligent cabinet are achieved; the intelligent cabinet can be remotely controlled and used in a one-to-one mode, the structure is simple, control is convenient, objects of people are effectively prevented from being lost, and the use efficiency of the intelligent cabinet is improved.

The invention provides a refrigerator which comprises a box body, a door body and a hinge assembly. The hinge assembly includes a hinge, a hinge shaft. The hinge is provided with a long installation groove, and the refrigerator further includes an adjustment assembly. The adjusting assembly comprises a stop block fixed on the hinge and located at one end of the long installation groove, a rotatingpart mounted on the hinge shaft and rotating with the hinge shaft, and an elastic part with the rear end fixed to the hinge and the front end rotatably connected with the hinge shaft to make the outer contour of the rotating part always in contact with the stop block. Through cooperation of the long installation groove, the stop block, the rotating part and the elastic part, automatic closing ofthe door body of the refrigerator and control of the maximum opening angle of the door body are realized.

The invention discloses an automatic rotation door device, and relates to the field of building moving type closing devices. The automatic rotation door device includes a door shaft and a door sash. The front and back of the door sash are provided with liquid bladders. The door shaft is internally provided with a hydraulic cylinder. A piston rod of the hydraulic cylinder is provided with outer threads. Pipelines are arranged between the liquid bladders on the front and back of the door and the hydraulic cylinders. The inner wall of each pipeline is connected with a baffle plate tilting towardsone side of the hydraulic cylinder. The other side of the connecting position of each baffle plate and the corresponding pipeline is provided with a blocking part used for limiting tilting of the baffle plate towards the liquid bladder direction. A flexible assembly is arranged between each baffle plate and each pipeline inner wall. A groove is formed in the door shaft. A rotation block insertedinto the groove is fixedly connected to the door sash. The rotation block is in rotation cooperation with the groove. The rotation block is internally provided with a cylindrical groove. The surface of the cylindrical groove is provided with inner threads matched with the outer threads of the piston rod. According to the automatic rotation door device, the problem that an existing rotation door which does not consume electricity cannot be opened and closed automatically is solved; the automatic rotation door device is mainly used in a family or a public area; through action of own gravity of people, automatic opening and closing of the door sash can be achieved.

The invention relates to the technical field of timing door closing, in particular to an automatic door closer. The automatic door closer comprises a shell, a transmission gear, a door spindle and a piston, the transmission gear and the piston are installed in the shell, a connecting rotating shaft is arranged in the middle of the transmission gear, one end of the connecting rotating shaft is fixed to the transmission gear, the other end of the connecting rotating shaft extends out of the shell to be connected with the door spindle, the door spindle is further connected with a door, the door drives the door spindle to rotate when rotating, and the transmission gear is further driven to rotate. The automatic door closer is ingenious in design and reasonable in structure, can effectively solve the problem that a building door cannot be automatically closed in the prior art, and is suitable for wide application and popularization.

The invention discloses a pre-amplification circuit based intelligent control system for roller-blind door. The system is characterized by mainly comprising a central processor, an A/D converter, a door opening control circuit, a door closing control circuit, a pre-amplification circuit, a photoelectric sensor, an infrared sensor, a door opening motor and a door closing motor, wherein the A/D converter, the door opening control circuit and the door closing control circuit are connected with the sensor processor, the pre-amplification circuit is connected with the A/D converter, the photoelectric sensor and the infrared sensor are connected with the pre-amplification circuit, the door opening motor is connected with the door opening control circuit, and the door closing motor is connected with the door closing control circuit. The intelligent control system is simple in structure, low in cost and capable of automatically opening and closing the door; and thus, the product and production environment in the roller-blind door can be ensured, and the intelligent control system is suitable for popularization and application.

The invention discloses an intelligent control system for a roller shutter door. The intelligent control system is characterized by being mainly composed of a central processing unit, an A/D converter, a door opening control circuit, a door closing control circuit, a photoelectric sensor, an infrared sensor, a door opening motor and a door closing motor, wherein the A/D converter, the door opening control circuit and the door closing control circuit are connected with the central processing unit, and the photoelectric sensor and the infrared sensor are connected with the A/D converter, the door opening motor is connected with the door opening control circuit, and the door closing motor is connected with the door closing control circuit. The intelligent control system is simple in structure, low in cost and capable of opening and closing the door automatically so that a roller shutter door isolated product and the production environment can be guaranteed, and the intelligent control system is suitable for being applied and popularized.

The invention discloses an intelligent household medicine box. The intelligent household medicine box comprises a medicine outlet bin and a medicine storage box, the medicine storage box is arranged in a center of an interior of a shell, round, and internally envely divided into eight partitions, the eight partitions are a first box cavity, a second box cavity, a third box cavity, a fourth box cavity, a fifth box cavity, a sixth box cavity, a seventh box cavity and an eighth box cavity respectively, a bottom part of each partition communicates with a lower box cavity, a stepping motor bin is arranged in a middle part of an interior of the medicine storage box, a medicine suction sliding table is arranged in front of the medicine box, and a stepping motor is arranged in the stepping motor bin.

The invention provides a freezer buffer hinge with power assisting and hovering functions. The freezer buffer hinge comprises a swing arm and a base, wherein the swing arm is matched and hinged with the base through a main shaft; a buffer transmission device is arranged on the base; the buffer transmission device comprises a buffer damper, a clamping seat, a transmission sleeve and a swing shaft; the clamping seat is clamped on the base; the transmission sleeve is arranged on the buffer damper in a sliding manner; a cylinder body of the buffer damper is positioned and connected to the clamping seat; a push rod of the buffer damper is positioned and connected to the interior of the transmission sleeve; the positioning end of the transmission sleeve is clamped on the swing shaft and is connected with the swing shaft in a sliding manner; and the swing shaft is arranged at the swing end of the swing arm and is connected with the base in a sliding manner. The freezer buffer hinge is simple in structure and stable in operation, and can realize power assisting, damping and hovering effects in a limited space, so that the use quality of a product is improved.

The invention discloses a hidden type three-dimensional adjusting automatic hinge. The automatic hinge comprises a door frame shell and a door leaf shell, wherein a hinge door leaf blade is fixedly installed on the inner side of the door leaf shell through an adjusting screw, a door frame blade is fixedly installed on the inner side of the door frame shell through an adjusting bolt, a vertical through hole is formed in the edge side of the door frame blade, the upper end of the through hole is rotationally connected with a flat shaft, the upper portion of the flat shaft is a flat column, the lower portion of the flat shaft is a cylinder, the flat column and the hinge door leaf blade are fixedly installed, a guide wheel capable of moving vertically is installed in the through hole, a spiral guide groove is formed in the side wall of the guide wheel, a guide wheel pin penetrating in the radial direction is fixedly installed on the cylinder, penetrates through the guide groove and is in sliding connection with the guide groove, and a spring is connected to the lower end of the guide wheel. According to the automatic hinge, the compression degree of the spring can be adjusted by adjusting the screwing length of a four-corner stud, then the automatic closing force is adjusted, after the door is closed, the hinged portion of the hinge door leaf blade is hidden in a rectangular groove of the door frame shell, the installation space is saved, and attractiveness is achieved.

The invention relates to the related technical field of intelligent door locks, and discloses an artificial intelligence door lock based on user use data and a control method thereof. The control method comprises the steps that a door lock state is detected, and when the duration of the door lock in an open state exceeds a preset first threshold value, a reminding module searches door opening and closing data records of the user in the corresponding time period in a data recording module based on the time period of the current timestamp; if it is searched that the recording times that the door opening and closing time interval of the user exceeds the first threshold value in the time period is larger than the recording times that the door opening and closing time interval of the user does not exceed the first threshold value, sending of a reminding instruction is delayed, and otherwise, the reminding instruction is sent immediately; if the door opening and closing record of the user in the time period is not searched, the reminding instruction is immediately sent out. Through the arrangement of the data recording module, the door lock can automatically send corresponding reminding to the user according to the previous use habit data of the user every time the user forgets to close the door. Compared with a reminding mode of a door lock at the present stage, the intelligent door lock is more timely in reminding and better conforms to the use habits of the user, and reminding when the user needs to open the door normally is avoided.

The invention discloses an intelligent control system based on a signal filtering type selection circuit and used for a roller shutter door. The intelligent control system is characterized by comprising an A/D (analog/digital) converter and a selection circuit which are connected with a central processing unit, a signal filtering circuit connected with the A/D converter, a photoelectric sensor and an infrared sensor which are connected with the signal filtering circuit, a door opening control circuit and a door closing control circuit which are connected with the selection circuit, a door opening motor connected with the door opening control circuit as well as a door closing motor connected with the door closing control circuit. The intelligent control system is simple in structure, low in cost, suitable for popularization and application and capable of opening and closing the door automatically so as to ensure that products and a production environment are separated by the roller shutter door.

The invention relates to the technical field of paper folding processes, in particular to a paper folding method of door closing folding. The paper folding method comprises the following process steps: an arc hole guide block, a U-shaped hole guide block, a return hole guide block, a strip hole guide block and a V-shaped hole guide block are arranged on a horizontal guide rail in sequence; a starting end of a paper slip penetrates through the arc hole guide block, the U-shaped hole guide block, the return hole guide block, the strip hole guide block and the V-shaped hole guide block in sequence; the starting end of the paper slip is pulled, and firstly, the paper slip passes through the arc hole guide block to be folded to an arc shape; then, the paper slip passes through the U-shaped hole guide block to be folded to a U shape; then, the paper slip passes through the return hole guide block to be folded to a return shape; then, the paper slip passes through the strip hole guide block to be folded to a strip shape; then, the paper slip passes through the V-shaped hole guide block to be folded to a V shape; and the door closing folding of the paper slip is finished. The paper folding method not only can save the manpower, improve the production efficiency and reduce the production costs for enterprises, but also can satisfy the production under different environments.