30results about How to "Solve the problem of not being able to open" patented technology

The invention provides a coded file cabinet lock with the multi-protection performance. The coded file cabinet lock with the multi-protection performance comprises a shell and electronic locks. The two electronic locks are disposed on the two sides of interior of the shell correspondingly. Each electronic lock comprises a housing and a power source. Locking shafts are disposed in the housings correspondingly. According to the coded file cabinet lock with the multi-protection performance, the electronic locks and a mechanical coded lock are used in cooperation, a main locking structure of the coded file cabinet lock is formed, a mechanical mode and an electronic mode are combined for use, the overall safety of the cabinet lock can be improved, and a coded file cabinet has double locking protection measures at the same time; by arranging a rotating structure and a lubricating structure to be used in cooperation, the cabinet lock further has an electronic lock locking protection measure and an electronic lock upper locking shaft anti-blocking measure; and it can be guaranteed that the cabinet lock is more worry-saving and more convenient to use by people through the cabinet lock formed by multiple protection measures.

The invention provides a control method for a refrigerator air door, a control device of the refrigerator air door and an air-cooled refrigerator. The control method of the refrigerator air door comprises the following steps: detecting the temperature of the refrigerating chamber of a refrigerator, and acquiring a first refrigerating temperature value; comparing the first refrigerating temperature value with a preset shutdown temperature value or a preset startup temperature respectively to obtain a first comparison numerical value or a second comparison numerical value, and controlling the startup or shutdown of the air door and a heating unit respectively according to the first comparison temperature value or the second comparison temperature value. According to the control method for the refrigerating air door provided by the invention, the work of the heating unit is controlled before the air door is opened, and the problem that the air door cannot be opened due to freezing on the air door is solved; meanwhile, the work of the heating unit is controlled before the air door is closed, and the problem of freezing of the refrigerating chamber of the refrigerator due to freezing of the air door and failure in completely sealing the air door is solved, so that the temperature of the refrigerating chamber is kept within a certain temperature range.

The invention discloses a manually-operated jigger mechanism for an emergency power device of a pressurized water reactor nuclear power station, which comprises a manually-operated jigger switching device and a spring valve. The manually-operated jigger switching device is arranged on the emergency power device; the spring valve consists of a spring valve body and a spring valve seat and is also connected with a positioning mechanism; and the positioning mechanism is fixed to a diesel engine base and is pressed against the spring valve seat so as to prevent the spring valve seat from moving backwards relatively to the manually-operated jigger switching device. The manually-operated jigger mechanism avoids the phenomenon that the manually-operated jigger switching device make the spring valve seat move backwards in the prior art, so a distance between a pressure lever and the valve head is increased and a valve head cannot be pressed to cause a failure; and the spring valve has convenient operation and high reliability in a manual jigger switching process.

The invention discloses an electronic lock which comprises an internal power supply, a micro control unit, a triggering port and a reset circuit, wherein the triggering port is connected with an external circuit in an inserted manner; and the reset circuit is connected with the triggering port and the micro control unit, and used for generating and transmitting a reset signal to the micro control unit to perform resetting when the triggering port is connected with the external circuit in the inserted manner. The electronic lock can solve the problem that the electronic lock cannot be unlocked in a convenient and quick manner, so that user experience is improved.

The invention provides an encrypted filing cabinet lock with multiple protection performances. The encrypted file cabinet lock with multiple protection properties includes: a housing; an electronic lock, two electronic locks are respectively arranged on both sides inside the housing, the electronic lock includes a casing and a power supply, and the casing The interior is provided with a locking shaft. The encryption file cabinet lock with multiple protection performances provided by the present invention is used in conjunction with an electronic lock and a mechanical combination lock to form the main locking structure of the encryption file cabinet lock, and the combined use of the mechanical type and the electronic type can increase the overall security of the cabinet lock. Safety, so that the encryption file cabinet has double locking protection measures at the same time, and through the use of a rotating structure and a lubricating structure, the cabinet lock also has electronic lock locking protection measures and electronic lock locking shaft anti-blocking measures, multiple protection measures The cabinet lock formed can ensure that people are more worry-free and more convenient when using it.

The invention provides a filter screen mechanism and an air conditioner with the filter screen mechanism. The filter screen mechanism comprises a mounting frame, a winding shaft and a filter screen piece, wherein a containing cavity and a first opening part communicated with the containing cavity are formed at one end of the mounting frame; the winding shaft is rotatably arranged in the containingcavity around the axis of the winding shaft; and one end of the filter screen piece is connected with the winding shaft, and the other end of the filter screen piece extends to the outer side of thefirst opening part so as to drive the filter screen piece to move relative to the mounting frame through rotation of the winding shaft, so that the filter screen piece is wound on the winding shaft orflattened on the mounting frame. According to the filter screen mechanism, the problem that in the prior art, a filter screen of a cabinet capable of achieving up-down reversible air outlet cannot beswitched between an opening mode and a closing mode is solved.

The invention provides a marble lock cylinder and a lockset provided with the same. Types of parts constituting the marble lock cylinder are reduced, processing is simple, and assembly is simple. Meanwhile, management is convenient, and safety of using areas is improved. The marble lock cylinder comprises a lock cylinder shell, a rotary core and more than one lock pin, wherein the rotary core is arranged inside the inner cavity of the lock cylinder through a transmission method. One end portion of the lock cylinder shell is provided with a key outlet, the rotary core comprises more than one lock pin installation hole, the lock pin is arranged inside the lock pin installation hole through a method that longitudinal reciprocating motion is convenient, a rotary core locking device is further arranged inside the inner cavity of the lock cylinder shell, and the rotary core locking device is arranged inside a transverse through hole of the side wall of the rotary core through a method that transverse reciprocating motion is convenient. The transverse through hole is communicated with the lock pin installation hole, when the lock pin moves to the opening position of the rotary core locking device longitudinally, the lock cylinder can rotate inside the inner cavity of the lock cylinder shell, when the lock pin is separated from the opening position of the rotary core locking device, the rotary core is fixed inside the inner cavity of the lock core.

The invention discloses a home access control system based on network technology. The side close to the front main body is provided with a connection box, and the inside of the front main body is connected with a memory card near the side of the connection box, and the inside of the front main body is connected with an image converter near the side of the storage card, and the front A wireless router is connected to the side close to the image converter inside the main body, and a bearing is connected to the inner wall of the connection box. In the present invention, a camera, an image processor, and a wireless router are arranged, and the camera transmits the pictures taken to the memory card, and the memory card then transmits the pictures to the picture converter, and converts the image signal into a digital signal, and then converts the image signal into a digital signal through the wireless router. The digital signal is sent to the user viewing interface to realize remote monitoring.

The invention discloses a stepwise direct-action piston type high-pressure-difference electromagnetic valve. The electromagnetic valve comprises a valve body, wherein an air inlet, an air outlet and an air channel communicated with the air inlet and the air outlet are formed in the valve body; a valve holder is assembled on the valve body; a sleeve tube is assembled at the upper end of the valve holder; a coil is arranged at the outer part of the sleeve tube; a static iron core is arranged at the upper end of the sleeve tube; a first movable iron core and a second movable iron core are arranged in the sleeve tube; a movable iron core spring is arranged between the first movable iron core and the second movable iron core; a pushing rod is arranged on the second movable iron core in a penetrating manner; a valve mouth, a valve core assembly and a valve core spring arranged between the valve mouth and the valve core assembly are arranged in the valve holder; a first valve opening is formed in the upper end of the valve mouth; the first valve opening is matched with the lower end of the second movable iron core; a second valve opening is formed in the lower end of the valve core assembly; the second valve opening is matched with the air channel; a pilot hole and a pressure releasing hole are formed in the valve core assembly. The electromagnetic valve has the advantages of being reasonable in structure, and accurate and sensitive to control, and can be suitable for high-pressure-difference environment.

The invention discloses an annulus safety device applied to an electric submersible pump producing well. The device comprises an inserting pipe sealing part, a hydraulic control part, a spring control part, a path control part and a self-balancing mechanism. Opening and closing of the annulus safety device can be remotely controlled by replacing a safety valve with a valve plate structure in a well, where other pipe columns are inserted into a production pipe column, and through control of a ground hydraulic system, so that the safety problems of an electric heating well and a same-well injection-extraction well are solved and the blowout accident is avoided. The annulus safety device has a pressure self-balancing function and solves the problem that the annulus safety device cannot be opened under overhigh downhole pressure caused when the well is closed for a long time.

The invention provides a water-cooled cover working door. A working door body is suspended on the first side face of channel steel by arranging angle steel clamped on a pulley device, so that the working door body and a working door bottom plate are kept a gap away from each other without being contacted with each other, the phenomenon that the working door on a water-cooled cover always sticks to the working door bottom plate under the influence of the radiation of high-temperature molten steel and splashing of liquid steel slag in the smelting process of an LF is overcome, the problem that the working door cannot be opened is solved, and the performance of the water-cooled cover of the LF furnace is optimized.

The invention provides an automatic can opener for cans, which includes a body and an operation cavity with an opening facing left located in the left end wall of the body. Clamping blocks are arranged symmetrically up and down in the operation cavity. A spline sleeve is installed for rotation in the transmission chamber, the outer surface of the spline sleeve is fixedly provided with a first bevel gear, and a spline hole extending up and down is arranged inside the spline sleeve; the device of the present invention can automatically screw the can, The sealing cap of the can can be easily unscrewed, which solves the problem that the sealing cap cannot be opened. The device can adapt to a certain size range of cans, has strong functionality, and has high use and promotion value.

The invention provides a rotary cushion valve, a rotary hydraulic system and an engineering machine. The rotary cushion valve comprises a pilot overflow valve. The pilot overflow valve comprises a main valve and a pilot valve, a delay decompression device is arranged on a pilot oil passage from the main valve to the pilot valve, and pressure change of a spring cavity can lag under the effect of the delay decompression device. The rotary cushion valve, the rotary hydraulic system and the engineering machine have the advantages that the delay decompression device which comprises components such as a damping hole and an elastic container is arranged on the pilot oil passage of the pilot overflow valve of the rotary cushion valve, a decompression procedure of the main valve of the pilot overflow valve can be delayed under a delay effect of the damping hole or a volume effect of the elastic container, accordingly, the rotary cushion valve can be started when impacted, the problem that an existing overflow valve (at a high setting pressure) cannot be started when impacted at a low pressure in a rotary procedure can be solved, and a rotary cushion effect can be effectively realized.