43results about How to "Avoid the problem of not being able to open" patented technology

The invention discloses a slide damping type water hydraulic overflow valve for high-pressure and high-flow systems. The slide damping type water hydraulic overflow valve comprises a valve (1), a valve seat (2), a damping ring (3), a main valve spool (4), a damping spring (5), a damper (6), a damping valve plate (7), a spring push rod (8), an upper end cover (9), an adjusting screw (10) and a main spring (12). A water inlet (1-1), a water outlet (1-2) and an end cover mounting hole are formed in the valve (1), and circular steps are arranged at the inner bottom of the valve (1). The slide damping type water hydraulic overflow valve has the advantages that the main valve spool is subjected to differential pressure control and has extremely small movement hydraulic force effective action areas, the main spring is simple in design and manufacture under the condition of equivalent pressure and flow control, the main valve spool and the valve seat are sealed by flat plate valve structures, and accordingly the slide damping type water hydraulic overflow valve is applicable to the high-pressure and high-flow water hydraulic transmission and control systems.

The invention provides a panel display driving chip based on a silicon on insulator (SOI) material, which is composed of a high-voltage P-type transverse metal oxide transistor, a high-voltage N-type transverse metal oxide transistor, a high-voltage N-type transverse insulated gate bipolar transistor and a low-voltage device, wherein each high-voltage device is isolated by a double-groove structure filled with silicon dioxide, which starts from the oxygen buried layer and ends at the field oxide on the device surface via the N-type buried layer and the N-type epitaxial layer; and the connection region of the epitaxial layer and the oxygen buried layer is provided with the N-type buried layer. The preparation method comprises the following steps: making the oxygen buried layer, the N-type buried layer and the deposition epitaxial layer on the P-type substrate; making the high-voltage P wells of the high-voltage N-type transverse metal oxide transistor and the high-voltage N-type transverse insulated gate bipolar transistor, the P-type drift region of the high-voltage P-type transverse metal oxide transistor, the buffer layer of the high-voltage transistor, the low-voltage well of the low-voltage transistor, the source and drain regions and the contact holes; and evaporating aluminium, photoetching aluminium in a reversed mode, forming electrodes and metal field plates, and passivating.

The invention provides a car door opening safety assisting device and method and belongs to the technical field of cars. The problems that operability of car door opening safety protection is too low and safety is not high in the prior art are solved. The car door opening safety assisting device comprises a car body controller, an ignition switch, a car speed sensor, a door lock switch, a door lock motor, a left radar sensor and a right radar sensor. The car speed sensor, the ignition switch, the left radar sensor, the right radar sensor and the door lock switch are connected with the input end of the car body controller. The door lock motor is connected with the output end of the car body controller. The method comprises the steps that A, whether a car is not stopped after being automatically locked or not is judged; B, whether objects approach to the rear portions of the left side and the right side of the car or not is judged; C, corresponding actions are conducted when the objects approach to the rear portions of the left side and the right side of the car; and D, corresponding actions are conducted when no object approaches to the rear portions of the left side and the right side of the car. The car door opening safety assisting device and method can improve the operability of car door opening safety protection and the safety when passengers open car doors and get off a car.

The invention discloses a finger recognition method of a reflectance oximetry, and belongs to the field of medical instruments. The finger recognition method mainly comprises the following steps: I, converting an optical signal received by a receiving sensor when the optical signal is transmitted by a transmitting sensor into a frequency signal, then comparing with a preset light intensity threshold value, and judging whether the light environment is a weak light environment or a strong light environment; II, analyzing a frequency signal formed by the light signal received by the receiving sensor at the time of double pulse square wave high level and a frequency signal formed by the light signal received by the receiving sensor at the time of double pulse square wave low level according to a result obtained by the step I to judge whether a finger exists; III, determining whether the reflectance oximetry is started. According to the method, the reflectance oximetry can be accurately, reliably and automatically opened, the design is simpler, the circuit is easier and more convenient, and the service life of the oximetry can be prolonged.

The invention discloses a train door opening and closing circuit and train door control system of a train set. The train door opening and closing circuit comprises a self-resetting door opening button, a self-resetting door closing button and a door releasing module. The door releasing module controls a door releasing instruction line to be converted from a low-level state to a high-level state and kept in the high-level state before a train door is opened every time, and autonomously controls the door releasing instruction line to be converted from the high-level state to the low-level stateafter the train door is closed every time, that is, the door releasing module can autonomously restore the low-level state of the door releasing instruction line, thus after the train door is closed,normal conducting of train opening operation of the next time can be ensured without executing corresponding restoring operation by a driver, manual operation steps of door opening and closing of thetrain set are omitted, the problem that the low-level state of the door releasing instruction line is not restored in time, and consequently the train door cannot be opened after end switching drivingis avoided, and then driving safety and the driving order are ensured.

The invention discloses an intelligent transformer explosion-proof protection device. The device comprises a shell and a transformer body mounted in the shell; the interior of the shell is divided into a gas storage cavity and a containing cavity through a set of vertically-arranged partition plates; a gas storage tank, a controller and a storage battery are mounted in the gas storage cavity; thecontroller and the storage battery are both installed on the side wall of the gas storage cavity; the controller is arranged below the storage battery and is electrically connected with the storage battery; the gas storage tank is fixedly connected with the inner wall of the gas storage cavity through supporting rods arranged on two sides; gas outlet pipes communicating with the gas storage tank are installed at the upper end and the lower end of the gas storage tank correspondingly; a top plate and a bottom plate are installed on the upper side wall and the lower side wall in the containing cavity correspondingly; and the transformer body is placed on the bottom plate. According to the intelligent transformer explosion-proof protection device, rapid air-blowing fire extinguishing is achieved when a transformer breaks down and spontaneously combusts, and an explosion problem caused by continuous combustion is prevented. The protection device is suitable for clamping transformer bodiesof different sizes.

The invention relates to an expressway guardrail. The expressway guardrail comprises a cross bar, supporting columns and fixing seats. The end of the cross bar is warped up. Each supporting column comprises a pair of supporting rods arranged in parallel, the upper ends of the supporting rods are connected with the cross bar through connecting balls and spherical groove structures which are matched, and the lower ends of the supporting rods are connected with the corresponding fixing seat through connecting balls and spherical groove structures which are matched. The supporting rods are made ofa permanent magnet material, and every two supporting rods in a pair are repulsive in magnetism. Containing grooves are formed in the opposite rod faces of every two corresponding supporting rods, and buffer safety bags are placed in the containing grooves and folded to be placed in the containing grooves in a folding fan shape. A pre-breaking groove is formed in the horizontal center line of each supporting rod. The expressway guardrail can effectively reduce the probability that a vehicle flies out or flies to an opposite road when an accident happens, effectively reduce the degree of influence on traffic by the accident and meanwhile effectively reduce the collision damage degree of the accident vehicle.

The invention provides a water hydraulic axial plunger pump with a pressure limiting overflow device and an unloading device. The water hydraulic axial plunger pump comprises a rear end cover (1), a valve plate (2), a rotary cylinder body assembly (3), a shell (4), a sliding bearing (5), an odd number of plunger sliding shoe assemblies (6), a return stroke plate (7), a swash plate (8), a mechanical seal (9), a front end cover (10), a shaft (11), the pressure limiting overflow device and the unloading device. A pump body is provided with the pressure limiting overflow device and the unloading device and applied to a water hydraulic transmission and control system; and compared with the design that a pipeline and a control valve are added to a pump with the same function, the system is simple, the integration level is high, pipeline design is simple, and manufacturing cost is low. The double-damping design adopting machinery and fluid power is adopted by the pressure limiting overflow device, so that the prominent problems of the pressure limiting overflow device in the aspects of working vibration, noise, pressure adjustment precision, stability, anti-pollution capacity and the like are solved effectively.

The invention discloses a fully-embedded refrigerator capable of increasing opening degree of a refrigerator body. A hinge assembly comprises a first hinge piece, a second hinge piece, a first switching piece and a second switching piece, when a door body is opened to a first opening angle, the first switching piece, the second switching piece and the second hinge piece move together relative to the first hinge piece, and the door body rotates in situ relative to the refrigerator body. When the door body continues to be opened to a third opening angle, the first switching piece and the first hinge piece are static relatively, the second switching piece and the second hinge piece move relative to the first switching piece together, the door body moves towards a containing cavity from a pivot side, the door body moves towards the pivot side from the containing cavity, and when the door body continues to be opened to the maximum opening angle. The first hinge piece, the first switching piece and the second switching piece are relatively static, the second hinge piece moves relative to the second switching piece, and the door body continues to rotate in situ relative to the refrigerator body. According to the fully-embedded refrigerator capable of increasing the opening degree of the refrigerator body, a rotating shaft can be switched in the opening process of the door body, so that the refrigerator can adapt to embedded application scenes, and the opening degree of the refrigerator body can be guaranteed.

The invention discloses a rolling sagger and a powder sintering method, and relates to the technical field of high-temperature sintering kilns. The rolling sagger comprises a sagger main body, the sagger main body is a hollow cylinder forming an inner cavity in a surrounding mode and is provided with at least one rotation axis, the two ends of the sagger main body are detachably connected with fixed cover plates, the fixed cover plates are provided with through exhaust holes, and the exhaust holes are communicated with the inner cavity of the sagger main body; a fixed shaft and a movable cover plate are arranged on the outer side of the fixed cover, the movable cover plate is in close fit with the outer side of the fixed cover plate and enables part of the exhaust holes to be in a blocked state, a notch is formed in the movable cover plate, the notch corresponds to at least one exhaust hole and enables the exhaust hole to be in a communicated state, and the movable cover plate can rotate around the fixed shaft. According to the rolling sagger and the powder sintering method, when the rolling sagger rolls in the tunnel kiln, waste gas can be discharged while powder is reserved.

The invention discloses gynecological appliance disinfection equipment, and the disinfection equipment structurally comprises a disinfection cabinet body, a cabinet door, an electric control panel, a door holder, a disinfection bin, a base and an operation bin; the cabinet door is movably arranged on the front side of the disinfection cabinet body through the door holder, the electric control panel is arranged above the front end of the disinfection cabinet body, the disinfection bin is arranged in the disinfection cabinet body, and the base is arranged below the disinfection bin; the operation bin is arranged on the upper portion of the interior of the disinfection cabinet body, the electric control panel is tightly connected with the interior of the operation bin through a circuit, and the disinfection bin is provided with an ozone recovery device and a pressure value balancing device. By arranging the ozone recovery device, air containing ozone in the disinfection equipment is pumped out, and ozone is separated and then put into the disinfection equipment to be recycled; untreated air mixed with ozone is prevented from diffusing into the external environment to cause damage to the body of medical staff; the rotary door opening device is arranged, so that the problem that the disinfection equipment cannot be opened due to too low air pressure caused by ozone extraction is avoided, and the ozone recovery device is more perfect.

The invention relates to a touch screen type one key starting system for motor vehicles and new energy vehicles. The touch screen type one key starting system comprises an airtight pressed touch screen assembly, a control device used for controlling electric motor working condition, a power source used for supplying electric power to the an electric motor, a switch chip used for controlling power source working condition, a Hall sensor used for detecting the electric motor working condition and a remote controller used for conducting wireless communication with the control device, wherein the switch chip has a screen lock control function; an I/O terminal of the control device is respectively and electrically connected with a touch screen, the switch chip and the Hall sensor; the switch chip or the control device is provided with a wireless communication module which exchanges data with the remote controller. Motor vehicle starting technologies are realized via adoption of touch screen technologies, and safe motor vehicle starting control and sensitive motor vehicle operation can be achieved; a problem that vehicles cannot be started due to dampness or sleety weather when a traditional key starting mode or a traditional press key starting mode is adopted can be prevented; the touch screen type one key starting system is advantaged by simple structure, convenience of installation and utilization, long service life, high antitheft performance and the like.

The invention discloses a carriage protection awning device with folding and unfolding functions for automobile freight. The carriage protection awning device comprises a installation rail, a front-end moving block and a middle moving block. The device has the beneficial effects that the front-end moving block, a driving motor, a driving wheel and a photovoltaic panel are adopted. When a tarpaulin is opened, the driving motor drives the driving wheels to move in the installation rails. Therefore, the front-end moving block is driven to move towards the rear portion of the compartment, the tarpaulin is driven to move, and the tarpaulin moves to drive the moving wheel of the middle moving block to roll; Thus, the tarpaulin between the middle moving block is driven to open in turn, so as to fully open the tarpaulina. The driving motor supplies power through electric energy which is generated by a photovoltaic panel and stored in a storage battery, the trouble of pulling an electric wire and refitting a circuit is omitted, installation and use are more convenient, the tarpaulin is opened in the mode that the driving motor drives a driving wheel to rotate. The trouble of installation a driving chain is omitted, and the overall installation and use are further facilitated, so that the installation and dismounting efficiency is greatly improved, and the use convenience is improved.