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

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.

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 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 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 a filter screen mechanism and an air conditioner with the same. The filter screen mechanism comprises a supporting frame, a filter screen assembly and driving components, wherein the filter screen assembly comprises a first filtering portion and a second filtering portion which are used for shielding an air duct together; the first filtering portion is rotatably arranged ona supporting frame around a first preset axis, the second filtering portion is rotatably arranged on the supporting frame around a second preset axis, the first preset axis and the second preset axisare parallel to each other, and a rotating direction of the first filtering portion and a rotating direction of the second filtering portion are opposite to each other; and the driving parts are arranged on the supporting frame and are in driving connection with the first filtering portion and the second filtering portion respectively to drive the first filtering portion and the second filtering portion to rotate, so that the filter screen mechanism is opened or closed, and the problem that a filter screen of a cabinet capable of achieving up-down reversible air outlet cannot be switched between an opening mode and a closing mode in the prior art is solved.

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 relates to an automobile escape control device, and particularly relates to an escape control device used for opening automobile door locks, car windows or skylights when drivers or passengers need to escape in accidents such as drowning and burning of automobiles. According to the device provided by the invention, activation and forbiddance of active and passive escape controls are allowed, and the active and passive escape controls are relatively independent and can be used independently or in combination; the device is simple in structure, small in size, therefore protection measures such as water resistance, fire resistance and collision resistance can be adopted independently for the device; the device can work independently, does not depend on automobile circuit systems or central control systems, which are wide in application range among automobiles and prone to broke down in accidents, therefore safety and reliability of the device in various accidents can be guaranteed.

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 relates to a plug-in door lock with an outer handle and an anti-damage escape function. The plug-in door lock comprises a front lock body assembly, a rear lock body assembly and a main lock body assembly; one end of a front transmission shaft of the front lock body assembly is installed on a front handle only in the axial moving mode, and the other end of the front lock body assemblyis provided with a clutch middle shaft which can only be axially retracted and extended out of the front transmission shaft; an ejector rod only capable of axially moving is arranged in a hollow cavity of a rear transmission shaft of the rear lock body assembly, and one end of the ejector rod extends out of the rear transmission shaft, and is connected and fixed to a release key arranged on a rear handle; further, the other end of the front transmission shaft is connected to a rotating shaft assembly body of the main lock body assembly, and the clutch middle shaft clamps the rotating shaft assembly body so as to drive the rotating shaft assembly body to rotate; and the other end of the rear transmission shaft clamps the rotating shaft assembly body, and the release key is pressed down todrive the ejector rod to extend out of the rear transmission shaft and extend into the rotating shaft assembly body, the clutch middle shaft is jacked into the front transmission shaft and is separated from the rotating shaft assembly body, the plug-in door lock is switched into an anti-damage escape state, so that the plug-in door lock has the anti-damage escape function, and the use safety is high.

The invention discloses a household access system based on a network technology. The system comprises a front body, a camera is embedded in the front face surface of the front body, a memory card is installed in the front body, a connecting box is arranged on the side, close to the front body, of the interior of the front body, the memory card is connected with the side, close to the connecting box, of the interior of the front body, an image converter is connected with the side, close to the memory card, of the interior of the front body, a wireless router is connected with the side, close tothe image converter, of the interior of the front body and a bearing is connected with the inner wall of the connecting box. By arranging the camera, an image processing unit and a wireless router, an image photographed by the camera is transmitted to the memory card, the image is transmitted to the image converter by the memory card, an image signal is converted into a digital signal, the digital signal is transmitted to a user viewing interface by the wireless router, and therefore remote monitoring can be achieved.

The invention discloses an ice breaking control method and system for a back pressure valve of a fuel cell. The method comprises the steps that: if it is detected that the back pressure valve is frozen, a pressure release valve is closed, a return valve is opened, and an air compressor is started; the release temperature of a release branch is collected; and if the release temperature reaches a first preset temperature, the pressure release valve is opened. According to the ice breaking control method, an outlet of the air compressor is connected with one end of the release branch, the other end of the release branch is connected with an inlet of the return valve and an inlet of the pressure release valve, an outlet of the return valve is connected with an inlet of the air compressor, and an outlet of the pressure release valve is connected with the back pressure valve. According to the ice breaking control method and system of the back pressure valve of the fuel cell,hot air can be used for heating and deicing the back pressure valve, and the ice can be melted after the back pressure valve is frozen, so that the back pressure valve can be opened.

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 belongs to the technical field of electric cookers, in particular to an air pressure regulating system for an electric rice cooker. The air pressure regulating system comprises a base, asleeve, an inner pot and a cooker cover, wherein the cooker cover is detachably mounted on the base through the sleeve; and the inner pot is detachably mounted in the sleeve. The air pressure regulating system also comprises a controller, a pneumatic pump and an air pressure balance module, wherein the pneumatic pump is arranged on the upper surface of the cooker cover; the air pressure balance module is fixedly mounted on the inner wall of the cooker cover and connected with the pneumatic pump through a pipe; and the controller is used for controlling the work of the pneumatic pump and the air pressure balance module. When the controller is used for controlling the work of the pneumatic pump, the air pressure in the pneumatic pump always keeps at a set value, and the air pressure balancemodule enables the rice cooking pressure in the inner pot to be always as same as the air pressure in the pneumatic pump by matching with the pneumatic pump. The air pressure regulating system is mainly used for regulating the air pressure in the inner pot of the electric rice cooker, thereby preventing the electric rice cooker from being damaged by the overlarge air pressure in the inner pot andimproving the service life of the electric rice cooker.

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 discloses a vehicle window automatic opening circuit and device. The vehicle window automatic opening circuit comprises a microswitch and a relay, wherein one end of the microswitch is connected with the relay, and the other end of the microswitch is connected with the cathode or anode of the power supply; a contact of the relay is connected with an escape structure of the vehicle; and the microswitch is closed when the vehicle falls into water, the relay is powered on, a contact of the relay is closed, and an escape structure of the vehicle is opened. After the vehicle falls into water, the microswitch is closed, an escape structure of the vehicle can be immediately opened, the safety of people in the vehicle is ensured, the vehicle window automatic opening circuit is not connected with a main circuit of the vehicle, and the vehicle can still operate under the condition that the main circuit is damaged when an accident happens.

The invention belongs to the technical field of electric cookers, in particular to an air pressure regulating system for an electric rice cooker. The air pressure regulating system comprises a base, asleeve, an inner pot and a cooker cover, wherein the cooker cover is detachably mounted on the base through the sleeve; and the inner pot is detachably mounted in the sleeve. The air pressure regulating system also comprises a controller, a pneumatic pump and an air pressure balance module, wherein the pneumatic pump is arranged on the upper surface of the cooker cover; the air pressure balance module is fixedly mounted on the inner wall of the cooker cover and connected with the pneumatic pump through a pipe; and the controller is used for controlling the work of the pneumatic pump and the air pressure balance module. When the controller is used for controlling the work of the pneumatic pump, the air pressure in the pneumatic pump always keeps at a set value, and the air pressure balancemodule enables the rice cooking pressure in the inner pot to be always as same as the air pressure in the pneumatic pump by matching with the pneumatic pump. The air pressure regulating system is mainly used for regulating the air pressure in the inner pot of the electric rice cooker, thereby preventing the electric rice cooker from being damaged by the overlarge air pressure in the inner pot andimproving the service life of the electric rice cooker.

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 relates to the technical field of file address fault tolerance, and particularly relates to an access address fault tolerance method and fault tolerance device. The method comprises thesteps of acquiring an access address; determining whether a target file extension name in the acquired access address is correct; in response to that the target file extension name is incorrect, determining a standard file extension name matched with the target file extension name; and replacing the target file extension name with the determined standard file extension name, so as to obtain the corrected access address. In the method, fault tolerance can be performed on the access address of the file, that is, whether the target file extension name in the access address is correct is determined, the wrong target file extension name is replaced with the standard file extension name, while in the prior art, file access is directly interrupted after the file extension name in the access address is determined wrong, therefore, the problem that the file cannot be opened due to wrong input of the file extension name is solved, and the code is further executed in address access of the file.

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 provides an antitheft well cover and an opening tool for the antitheft well cover. The antitheft well cover comprises a cover body and an antitheft device installed on the cover body; a clamping buckle structure is installed on the antitheft device, a connection groove is formed in the portion, close to the clamping buckle structure, of the surface of the cover body, and the connection groove is used for enabling the opening tool to be buckled on the clamping buckle structure through the connection groove. According to the antitheft well cover and the opening tool for the antitheft well cover, the antitheft device is installed on the cover body of the well cover, the clamping buckle structure is installed on the antitheft device, the connection groove is formed in the portion, close to the clamping buckle structure, of the surface of the cover body, and the connection groove is used for enabling the opening tool to be buckled on the clamping buckle structure through the connection groove so that the antitheft well cover can be conveniently opened through the opening tool and the antitheft device, and the problems that in the prior art, a hidden lock of the antitheft well cover is easy to rust and cannot be unlocked are solved.

The invention provides a sliding interface cover plate structure used for closing an interface position disposed on a side surface of a housing of a portable electronic device. The sliding interface cover plate structure comprises a containing groove, a rotating groove, an inner cover, and an outer cover. The containing groove is disposed in the interface position on the side surface of the housing. The rotating groove is disposed adjacent to one tail end of the containing groove. The inner cover is placed in the containing groove. One tail end of the inner cover is a rotating shaft sleeved by a torsion spring. The rotating shaft is fixed on the rotating groove in order to enable the tail end of the inner cover to be pivoted on the rotating groove. An inner sliding knob is disposed on the other tail end of the inner cover. A side of the inner sliding knob is provided with a fixing shaft sleeved by an elastic assembly. An outer sliding groove is disposed in the outer side surface of the outer cover and is equipped with an outer sliding knob combined with and fixed on the inner sliding knob. The invention solves the problem that an interface cover plate cannot be opened because of interference. The inner cover is rotated by using the torsion force of the torsion spring so that the outer cover contacts an interference point. Therefore, the outer cover is further pushed to slide laterally, and the interface cover plate is smoothly opened.

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 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 discloses a control connecting device for detecting an electric control camera lens. The whole device is composed of a machine body end positioning convex claw, a lens end positioning concave claw, a limiting hole, a contact, a contact piece, a limiting pin and a flat cable. When the to-be-tested electrically-controlled camera lens leaves the camera body for testing, the positioning concave claw is connected with the electrically-controlled camera lens, the positioning convex claw is connected with the camera body, and the electrically-controlled camera lens separated from the camera body obtains a control signal transmitted by the camera body through a flat cable, so that control on parameters such as opening, closing, size, focusing and zooming of an aperture of the electrically-controlled camera lens is realized. The device has the advantages that: the problem that a control signal cannot be obtained after the electronic control camera lens is separated from the machine body during detection is solved, the separated electronic control camera lens and the machine body are connected through the positioning convex claw and the positioning concave claw, the control signal of the machine body is indirectly obtained through the flat cable, a solution is provided for detection of the electronic control camera lens, and the test of the lens parameters is more convenient.

The invention belongs to the technical field of forcible entry robots. A hotel fire forcible entry robot comprises a forcible entry mechanism and an embrittlement mechanism, the forcible entry mechanism is arranged below the embrittlement mechanism, the bottom of the embrittlement mechanism is installed on the upper portion of the rear end of the forcible entry mechanism, the forcible entry mechanism comprises a forcible entry stabilizing part and a forcible entry working part, and the forcible entry working part is arranged at the front end of the forcible entry stabilizing part, and the tail end of the forcible entry working part is arranged at the upper part of the forcible entry stabilizing part. The invention further provides a using method of the device, and the using method comprises the steps of breaking embrittlement, mechanical breaking and the like.

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.