1226 results about "Pressure Limit Valve" patented technology

The invention discloses an electric pressure cooker, which comprises a cooker body, a cooker cover, a pressure limiting valve and a driving mechanism for driving the pressure limiting valve, wherein the cooker body comprises an outer pot and an inner pot which is arranged in the outer pot; the inner pot is used for accommodating cooked foods and a heating piece, which is used for heating the inner pot, is arranged in the outer pot; the cooker cover is arranged on the cooker body; an exhaust mechanism, which communicates with the interior of the inner pot, is arranged on the cooker cover, and diameter of the exhaust passage is within a range from 3.3mm to 30mm; the pressure limiting valve is movably arranged at the upper side of the exhaust passage so as to open or seal the exhaust passage; the inner pot is heated by the heating piece and the pressure limiting valve, which is driven by virtue of the driving mechanism, is used for sealing the exhaust passage so as to increase pressure in the inner pot and to keep the pressure in the inner pot at a rated pressure when the electric pressure cooker is under a boosting mode; and the inner pot is heated by the heating piece and the pressure limiting valve, which is driven by virtue of the driving mechanism, is used for opening the exhaust passage so as to release the cooking pressure in the inner pot when the electric pressure cooker is under a buck mode. With the application of the technical scheme provided by the invention, problems in the prior art that an electric pressure cooker are long in cooking duration and complex in operating steps of flavoring and thickening are solved.

The invention relates to an engine, in particular to a V-shaped multi-cylinder aerodynamic engine assembly adopting compressed air as motive power. The V-shaped multi-cylinder aerodynamic engine assembly comprises a multi-cylinder engine body (1), a multi-column motive power distributor (2), motive power equipment (4), a controller system (6), an air inlet control speed regulating valve (23), a high-pressure gas tank group (13), a constant pressure tank (16), an electronic control unit (ECU) (29), a compressed air heating device (101) and an optional second gas supply loop. The second gas supply loop comprises an air compressor (7), a condenser (11), a pressure limiting valve (702), a sequence valve (705) and a tail gas recovery tank (9).

The invention discloses an electric pressure cooker, which comprises a cooker body, a cooker cover and a driving mechanism, wherein the cooker body comprises an outer pot and an inner pot which is arranged in the outer pot, and the inner pot is used for accommodating cooked foods; the cooker cover is arranged on the cooker body and the cooker cover covers the inner pot in a sealing mode; an exhaust passage which communicates with the interior of the inner port and a pressure limiting valve which is in charge of controlling a ventilation state of the exhaust passage are arranged on the cooker cover; the driving mechanism comprises a power mechanism which is used for offering rotating motion of a rotating shaft and a threaded transmission mechanism which is used for converting rotation of the rotating shaft into vertical motion of the pressure limiting valve; and the threaded transmission mechanism comprises threaded pillars and threaded holes which are mutually matched. With the application of the technical scheme provided by the invention, a problem in the prior art that an electric pressure cooker, which cannot achieve continuous exhausting, is poor in cooking effect since foods cannot be kept turning continuously is solved.

Provided is a clamp type pressure cooker. The clamp type pressure cooker comprises a cooker body and a cooker cover, wherein the cooker cover is provided with a pressure-limiting valve and a clamp assembly, the pressure-limiting valve can adjust pressure of the pressure cooker, the clamp assembly is used for locking the cooker cover and the cooker body, the clamp assembly comprises at least two clamps capable of clamping the cooker cover and the edge of the cooker body, the clamps are connected with a driving device, so that the clamps are located in a locking position for locking the cooker cover and the cooker body or a unlocking position for unlocking the cooker cover and the cooker body, and the cooker is characterized in that the driving device comprises a knob switch, a first drivingpart and a second driving part. The knob switch can simultaneously control the opening and closing of the clamps and pressure adjustment of the pressure-limiting valve, so that an one-key operation of cover opening and closing and pressure adjustment of the pressure cooker is achieved; the knob switch can perform the pressure adjustment on the pressure-limiting valve only after the clamps are located at locking gear positions, thereby preventing the pressure cooker from being directly used due to the fact that the clamps do not clamp the pressure cooker tightly; in the same way, only after the knob switch is rotated from a pressure adjustment gear position to the locking gear position, can the pressure-limiting valve perform venting, the cooker cover cannot be opened until the pressure inthe pressure cooker is released, and the use safety is improved.

The invention provides an electric pressure cooker which comprises a control circuit, a cooker, an upper lid, a lid, a pressure limiting valve and a driving component. The upper lid is positioned on the upper side of the cooker and is mounted on the cooker in such a manner that the upper lid can be opened and closed; the lid is positioned between the upper lid and the cooker, is rotatably mounted on the upper lid and is rotationally fastened and connected with the cooker; a through hole is formed in the upper lid, an exhaust pipe on the lid extends out of the through hole, and the pressure limiting valve sleeves the exhaust pipe; the driving component is positioned on a side of the exhaust pipe, is mounted on the upper lid and is electrically connected with the control circuit; a slip lift structure is arranged between the pressure limiting valve and the lid, and a matching portion is arranged on the pressure limiting valve. Compared with the traditional electric pressure cooker, the electric pressure cooker has the advantages that the lid is easy to open and close, the problem of difficulty in closing an existing lid due to the fact that internal pressures of an existing electric pressure cooker are higher than external pressures can be solved, and problems of cooker sucking and difficulty in opening the existing lid due to the fact that the internal pressures of the existing electric pressure cooker are lower than the external pressures also can be solved, and the electric pressure cooker can have functions of automatically exhausting air and releasing pressures in cooking procedures.

The invention provides an electric pressure cooker. The electric pressure cooker is provided with an air discharging pipe and a pressure limit valve used for sealing an air discharging opening of theair discharging pipe. The pressure limit valve of the electric pressure cooker can be controlled diversely, the first control mode is that at a heat-preservation stage, the pressure limit valve is driven to leave from the air discharging opening to switch on the air discharging pipe, and the air discharging pipe discharges air. The electric pressure cooker can rapidly discharge the air at the heat-preservation stage so that a lid can be rapidly opened.

The invention discloses a control method of an electric pressure cooker. The electric pressure cooker comprises a cooker body, a cooker cover and a driving mechanism, wherein the cooker body comprises an outer pot and an inner pot which is arranged in the outer pot, and the inner pot is used for accommodating cooked foods; the cooker cover is arranged on the cooker body, and the cooker cover is provided with an exhaust passage which communicates with the interior of the inner port and a pressure limiting valve which is in charge of controlling a ventilation state of the exhaust passage; the driving mechanism is arranged in the cooker cover and is used for driving the pressure limiting valve to move up and down, wherein the pressure limiting valve comprises a valve body and a plug; the driving mechanism is connected to the valve body and is in charge of driving the valve body to move up and down; and an elastic resetting piece is arranged between the plug and the valve body. The control method comprises an exhausting method, wherein the exhausting method comprises the following a step of controlling the driving mechanism to drive the valve body to move and to change a compression amount of the elastic resetting piece in accordance with pressure of cooking steam in the inner pot, so that pressures at two ends of the plug are kept balanced, and subsequently, the exhaust passage is constantly kept under an exhaust state. With the application of the technical scheme provided by the invention, a problem in the prior art that an electric pressure cooker, when used for cooking, is poor in cooking effect since foods cannot be kept turning continuously is solved.

The invention discloses an electric pressure cooker, which comprises a cooker body, a cooker cover, a pressure limiting valve and a driving mechanism for driving the pressure limiting valve, wherein the cooker body comprises an outer pot and an inner pot which is arranged in the outer pot; the inner pot is used for accommodating cooked foods; the cooker cover is arranged on the cooker body; an exhaust mechanism, which communicates with the interior of the inner pot, is arranged on the cooker cover, and diameter of the exhaust passage is within a range from 3.3mm to 30mm; the pressure limiting valve and the driving mechanism for driving the pressure limiting valve are arranged in the cooker cover; the pressure limiting valve is movably arranged at the upper side of the exhaust passage so as to open or seal the exhaust passage, wherein the electric pressure cooker has a pressure-free cooking mode; and the pressure limiting valve is used for opening the exhaust passage so that the interior of the inner pot communicates with external side when the electric pressure cooker is under the pressure-free cooking mode. With the application of the technical scheme provided by the invention, a problem in the prior art that an electric pressure cooker is complex in a pressure-free cooking step is solved.

The invention provides an electric pressure cooker. The electric pressure cooker comprises a cooker body (10) and a cooker lid (20); the cooker body (10) is used for containing cooked food and internally provided with a heating device, the cooker lid (20) covers the cooker body (10) and comprises an upper lid and an inner lid (22) which is provided with a movable relief valve (30), the upper lid is provided with a driving device (40) used for driving the relief valve (30) to be switched on, and when the inner lid (22) is assembled on the upper lid, the relief valve (30) sinks due to gravity soas to keep away from a driving ejecting rod (41) of the driving device (40). According to the technical scheme, the problem that in the prior art, when the cooker lid is assembled, the ejecting rod of the driving device is likely to interfere with the relief valve can be effectively solved.

The invention provides an electric pressure cooker. The electric pressure cooker comprises a cooker body and a cooker lid; the cooker body is used for containing cooked food and internally provided with a heating device; the cooker lid covers the cooker body, the cooker lid comprises an upper lid and an inner lid, a relief valve is arranged on the inner lid, a driving device used for driving the relief valve to be switched on is arranged on the upper lid, a driving piece and an inclined part are arranged on the outer surface of the relief valve in the circumferential direction, an avoidance concave part which is concaved in the stretching direction of a driving ejecting rod of the driving device is formed between the driving piece and the inclined part, when the inner lid is assembled on the upper lid, the front end of the driving ejecting rod can be placed in the avoidance concave part, and then the phenomenon that the driving ejecting rod interferes with the relief valve and/or the driving piece is prevented. According to the technical scheme, the problem that in the prior art, when the cooker lid is assembled, the ejecting rod of the driving device is likely to interfere with the driving piece of the relief valve can be effectively solved.

The invention discloses a powder spreading processing based functionally graded material preparation device and method. The powder spreading processing based functionally graded material preparation device comprises a powder spreading device, a feeding device, a powder collecting device and a powder mixing control device; the feeding device, the powder collecting device and the powder mixing control device are connected sequentially from upside to downside through pipelines; the feeding device comprises three powder cylinders, i.e., powder cylinder A, powder cylinder B and powder cylinder C; the powder collecting device comprises a powder collecting chamber; the powder mixing control device is provided; the powder cylinders are connected to the powder collecting chamber through pipelines, and flow controllers and gas power generators are arranged on the pipelines sequentially from upside to downside; a pressure-limiting valve is arranged at the joint of the powder collecting chamber and the powder mixing control device. The functionally graded material which is prepared by adopting the device and method has no obvious interface or separated layer, the gradient change can be realized in a horizontal plane and a vertical plane of substrate during the processing process, good spatial continuity is achieved, direct melting molding of high-melting metal can be realized, and the use range of the functionally graded material is enlarged.

The invention provides a cooking utensil and a control method thereof. The cooking utensil comprises a pot body, wherein the pot body is used for containing cooked food; a pot cover, wherein the pot cover is arranged on the pot body and is provided with an exhaust structure that communicates with the inner of the pot body; and a pressure limiting valve and a driving device, wherein the pressure limiting valve is arranged on the exhaust structure, the driving device fits with the pressure limiting valve, and the driving device pushes the pressure limiting valve and enables the pressure limitingvalve to return to the original position. The technical scheme of the invention solves the problem that due to improper installation of a pressure limiting valve, an exhaust pipe of an electric pressure cooker in the prior art leaks air during cooking.

The invention provides a pan cover for a pressure pan and the pressure pan provided with the pan cover. The pan cover comprises a pan cover body on which a pressure-limiting valve is arranged, the pan cover body is further provided with a driving mechanism, and by the driving mechanism, the pressure-limiting valve can be switched between a normal open state and a normal working state. According to the pan cover for the pressure pan, which is provided by the invention, the pressure-limiting valve can be switched between the normal open state and the normal working state by the driving mechanism, when the pressure-limiting valve is in the normal open state, an exhaust condition is kept all the time, so that the pressure pan realizes a normal pressure cooking (equivalent to rice cooker cooking) pattern, the cooking is convenient, food is easily cooked to be tender, and the pressure pan further has the effects of enabling the food to have good color and luster and good flavor. The multifunctionality and convenience of the pressure pan are improved, and the pressure pan is simple in structure, convenient to operate and low in cost.

The invention discloses a pressure-controlled electric pressure cooker. The pressure-controlled electric pressure cooker comprises a cooker body, wherein a cooker cover is arranged on the upper part of the cooker body; a pressure limiting valve is arranged inside the cooker cover; handles are arranged on the outer sides of the cooker body and the cooker cover respectively; a cooker base is arranged at the lower part of the cooker body; a power interface is formed in the cooker base; a controller is arranged at the outer part of the cooker body; the controller is embedded into the cooker body and is fixedly connected; a liquid crystal display screen is arranged on the outer part of the controller; a pressure display is arranged on the lower part of the liquid crystal display screen; an alarm is arranged on one side of the pressure display; the liquid crystal display screen, the pressure display and the alarm are connected with the controller through conductive wires respectively. Through the added pressure sensor, the pressure of an inner cooker container on a heating disc can be measured, and through the controller, the pressure is displayed on the pressure display, so that a usercan record the pressure and the cooking time which are required by different food materials, and thus the convenience of cooking the same food material next time is improved.

The invention discloses a pot cover assembly and a pressure cooker and belongs to the technical field of pressure cookers. The pot cover assembly and the pressure cooker are designed to solve the problem that the structure of an existing device is complex. The pot cover assembly comprises a pressure-limiting valve and a valve body unbalance mechanism. The valve body unbalance mechanism can eject the pressure-limiting valve continuously after triggered and enable the pressure-limiting valve to be in an exhaust status continuously until the valve body unbalance mechanism is reset, and the electric pressure cooker is restored to a high pressure mode. The pot cover assembly and the valve body unbalance mechanism of the pressure cooker can eject the pressure-limiting valve continuously after the valve body unbalance mechanism is triggered and enable the pressure-limiting valve to be in the exhaust status continuously until the valve body unbalance mechanism is reset. The electric pressure cooker is restored to the high pressure mode only when the pot cover of the electric pressure cooker is opened or rotated. A non-pressure cooking mode is achieved by using the pressure-limiting valve to exhaust continuously. Manual exhaust can also be achieved; the structure is simple and reliable; using is convenient; assembling is easy; the assembling efficiency is high; and the cost is low.

The invention provides a portable pressure cooker. The pressure cooker comprises a cooker body and a cover. The pressure cooker is characterized in that the cooker body comprises an outer cooker bodyand an inner cooker body, the inner cooker body is sleeved with the outer cooker body and connected with the outer cooker body through a cover ring and a clamp ring, a cavity used for placing self-heating materials is formed in the part between the inner cooker body and the outer cooker body, and a pressure limiting valve and/or a safety valve communicated with the cavity is arranged on the side face of the cooker body. By arranging the inner and outer cooker bodies and placing the self-heating materials in the cavity formed in the part between the inner and outer cooker bodies, automatic heating can be conducted by adding in water to cook foods in the inner cooker body, so that the use of the cooker in an environment without heating sources in the field is convenient; by arranging the safety valve on the side of the outer cooker body and arranging an exhaust valve on the cover, the pressure cooker is safe and reliable to use; by fixing the inner cooker body and the outer cooker body through the clamp ring and the cover ring, the disassembly and assembly of the pressure cooker are convenient, and the sealing performance is good; the outer cooker body is divided into two layers, theouter layer is a heat preserving layer, heat does not disperse easily, the heat preserving performance is good, and cooking is faster. The pressure cooker has the advantages of being simple and reasonable in structure, convenient to dismantle and assemble and safe and reliable to use.

The invention discloses an electric pressure cooker with adjustable pressure limiting value. The electric pressure cooker comprises a cooker seat, a cooker body and a cooker cover, wherein the cookerseat, the cooker body and the cooker cover are matched in sequence from top to bottom and are fixedly connected; a connecting block is arranged at the upper part of the cooker cover; the connecting block and the cooker cover are fixedly connected through a bolt and a nut; the connecting block and the cooker body are connected through a foldable connecting part; a pressure limiting valve is arranged in the connecting block; a lifting handle is arranged at one side of the pressure limiting valve; one end of the lifting handle and one end of the pressure limiting valve are embedded into the cooker body respectively and are fixedly connected through a screw and a thread. According to the electric pressure cooker disclosed by the invention, a compression spring is matched with a pressure switchto use; when a heating disc sinks under the action of pressure, the heating disc moves to trigger the pressure switch to move, so as to control the pressure; a temperature sensor, which is additionally arranged, can be used for converting a measured temperature signal to an electric signal to control whether the heating disc is continually heated to control the pressure or not, so that the pressure limiting value is convenient to adjust.

The invention discloses a pressurizing-type pressure cooker. The pressurizing-type pressure cooker includes a pressure cooker body. The pressure cooker body comprises a pressure limiting valve, and avent pipe with one end connected to the pressure limiting valve is arranged on the pressure limiting valve; a pressurizing device is communicated with the other end of the vent pipe; the pressurizingdevice includes a housing and a clapboard dividing the interior of the housing into an upper space and a lower space; a cylinder is perpendicularly arranged on the top of the clapboard; an air guidingpipe communicated with the interior of the cylinder is arranged on the top of one side of the cylinder; a piston with a piston rod is arranged in the cylinder; one end of the piston rod penetrates out of the bottom of the clapboard; a driving motor is perpendicularly connected to the inner wall of the bottom of the housing, and an output end of the driving motor is connected with the piston rod through a connector to make the piston rod linearly move back and forth. An intelligent controller electrically connected to the driving motor is arranged on the pressure cooker body.

The invention provides a pot cover used for a cooking utensil and the cooking utensil. The pot cover used for the cooking utensil includes a cover body, a pressure-limiting valve and a floater valve; the cover body includes a surface cover, a valve groove is formed in the surface cover, the pressure-limiting valve is arranged in the valve groove, the bottom of the valve groove is provided with a first floater valve exhaust hole corresponding to the position of the floater valve, a first blocking structure is arranged between the first floater valve exhaust hole and the pressure-limiting valve, and the first blocking structure extends toward the outer side of the surface cover from the bottom of the valve groove. According to the pot cover, the blocking structure is arranged between the first floater valve exhaust hole and the pressure-limiting valve, when abnormal exhaustion of the pressure-limiting valve occurs, liquid flowing out of the pressure-limiting valve only can be left and stored in the valve groove and does not enter the pot cover through the first floater valve exhaust hole, the problem that high-temperature liquid enters the pot cover and the pot cover is thus very hot and difficult to clean is avoided, the use safety is improved, and it is ensured that the inside of the pot cover is clean.

The invention provides an electric pressure cooker. The electric pressure cooker comprises a cooker body, a cooker lid and a guide structure; the cooker body is used for containing cooked food; the cooker lid is arranged on the cooker body, the cooker lid comprises a cooker lid main body and an inner cooker lid arranged on the cooker body main body, a driving part is arranged in the cooker lid main body, a relief valve is arranged on the inner cooker lid, and a push handle is arranged on the outer side wall of the relief valve; when the cooker lid is in an opening state, the driving part pushes the push handle and makes the relief valve exhaust; the guide structure is arranged between the cooker lid main body and the relief valve, in the process that the inner cooker lid is installed on the cooker lid main body, the guide structure makes the relief valve rotate around the axis of the relief valve and makes the push handle avoid the driving part, and when the inner cooker lid is installed on the cooker lid main body, the relief valve returns to the original position and makes the driving part cooperate with the push handle. According to the technical scheme, the problem that in theprior art, when the inner cooker lid is assembled or disassembled when the electric pressure cooker is in a lid opening state, the push rod of a solenoid valve and the push handle of the relief valveare likely to be subjected to friction interference is solved.

The invention discloses a lid assembly. The surface lid is fixedly rotatably provided with a handle base, the inner lid is provided with an open crank which cooperates with the handle base and is in linkage with a steel lid, the surface lid, the inner lid and the steel lid are successively penetrated through an exhaust pipe communicating with the inner cavity of the cooker body; the surface lid is provided with a pressure limiting valve which cooperates with the outer port of the exhaust pipe. One end of the pressure limiting valve is provided with an exhaust ejector rod which is matched with the bottom of the pressure limiting valve, an exhaust lever is arranged between the exhaust ejector rod and the handle base, and a cam is arranged on the handle base in a linkage manner. The cam is provided with a flange cooperating with a force receiving end of the exhaust lever and the biasing end of the exhaust lever is located at the bottom of the exhaust ejector lever. The lid assembly enables simple and efficient remote venting of the electric pressure cooker. The invention also discloses an electric pressure cooker to which the lid assembly is applied.

The invention provides a pressure adjusting structure comprising a valve seat, an exhaust tube and a magnetic valve body. The lower end of the exhausting tube passes through the valve seat; the magnetic valve body sleeves the upper end port of the exhausting tube; a magnetic cushion block is arranged between the valve seat and the magnetic valve body; and the magnetic cushion block is connected with the valve seat via a magnetic cushion block adjusting structure adjusting up-down positions of the magnetic cushion block. When a pressure limiting value of a pressure-limiting valve has to be adjusted, the up-down positions of the magnetic cushion block is adjusted by the magnetic cushion block adjusting structure, so a distance from the magnetic gasket to the magnetic valve body can be changed; when the distance changes, magnetic field force between the magnetic cushion block and the magnetic valve body can be changed; the pressure limiting value of the pressure limiting valve is the self weight of the magnetic valve body and the magnetic field force between the pressure limiting valve and the magnetic valve body; the pressure limiting value of the pressure limiting valve can be adjusted and food cooking effect of the pressure cooker can be improved; meanwhile, the use of elastic components such as springs can be avoided in the adjusting structure, so fewer components are required; and the pressure adjusting structure is simply structured, convenient to assembly and has high reliability.

Disclosed is a cooking utensil. The cooking utensil comprises a pot body, a pot lid, a pressure limiting valve, a transmission piece and a driving device; the pot body is used for containing food to be cooked; the pot lid covers the pot body and is provided with an exhaust passage; the pressure limiting valve is arranged on the exhaust passage; the transmission piece is arranged on the pot lid; the driving device is arranged on the pot lid and deviates a certain distance from the pressure limiting valve so that the transmission piece can be pushed to horizontally jack and push the pressure limiting valve to be switched on. By means of the technical scheme, the problem is effectively solved that in the prior art, opening and closing of pot lids are unsmooth due to air trapping of electric pressure cookers.