241results about How to "Improve leakage" patented technology

The invention discloses a power MOSFET and a preparation method thereof, and belongs to the technical field of microelectronics. The power MOSFET comprises a substrate layer, an AlN buffer layer, a Ga2O3 buffer layer and a Ga2O3 epitaxial layer which are arranged from bottom to top, wherein the top surface of the Ga2O3 epitaxial layer is provided with a groove, and an oxide isolation layer is arranged in the groove; the drain electrode is arranged on one side of the Ga2O3 epitaxial layer and is adjacent to the oxide isolation layer; the source electrode is arranged in the middle area of the other side of the Ga2O3 epitaxial layer; second grooves are formed in the two sides of the source electrode; a NiO layer and an insulated gate dielectric layer are arranged on the second groove from bottom to top; a gate electrode with a non-planar gate structure is arranged on the insulated gate dielectric layer; and a gap part around the second groove and the gate electrode is filled with a first oxide isolation layer. Through structural design and material selection, the problems of serious heat dissipation and gate electrode electric leakage of existing similar devices are solved, and the voltage withstanding performance of the device is improved.

The invention discloses an ROS-responsive edible antibacterial preservative film and a preparation method thereof. The invention discloses a ROS (reactive oxygen species)-responsive antibacterial agent which is composed of sodium alginate (SA), carboxymethyl chitosan (CS), an ROS response group (TK-NH2) and antibacterial micromolecules (AB), TK-SA with ROS response characteristics is obtained through acylation reaction of TK-NH2 and SA through EDC, the antibacterial micromolecules (AB) are loaded into TK-SA through acylation reaction of EDC, and AB-TK-SA with antibacterial activity is obtained; aB-TK-SA and CS are mixed, sprayed to a clean glass plate and dried at the room temperature. The ROS-responsive edible antibacterial preservative film (AB-TK-SA / CS) provided by the invention has the characteristics of safety, low toxicity and ROS-responsive release, and can effectively inhibit the growth of staphylococcus aureus; the method is simple and convenient in preparation process, low in cost and good in reproducibility, and has a good application prospect in the field of related food preservation.

The invention discloses a regulating valve testing device and method, and relates to the technical field of regulating valves, and the regulating valve testing device comprises a steam generation mechanism; the air inlet end of the condensation pipe is used for being connected with an air outlet of the adjusting valve; the condensing mechanism is used for condensing steam in the condensing pipe; and the detection mechanism is used for measuring the amount of liquid water condensed in the condensation pipe. According to the technical scheme, steam is supplied into the steam transmission pipe through the steam generation mechanism, steam leaked out of the adjusting valve is condensed through the condensation mechanism, liquid water condensed out of the condensation pipe is detected through the detection mechanism, and the total leakage amount of the adjusting valve is obtained; therefore, the leakage rate of the regulating valve under the saturated steam is detected, and the problem that the leakage rate of the regulating valve when the saturated steam serves as a working medium is difficult to detect is solved on the whole.

The invention belongs to the technical field of medical training devices, and particularly relates to a vascular suture nursing simulation training device which comprises a training table, a square frame is arranged at the top of the training table, a simulation silica gel layer is filled in the square frame, a plurality of drainage bent pipes are installed on the square frame, one end pipe opening of each drainage bent pipe extends into the simulation silica gel layer, and the other end pipe opening of each drainage bent pipe extends into the simulation silica gel layer. A simulation silica gel layer is arranged on the training table, a pipe opening in the other end of the simulation silica gel layer is communicated with a liquid box in the training table, a plurality of simulation blood vessels are laid in the simulation silica gel layer, a pipe opening of each simulation blood vessel is communicated with a liquid guiding bent pipe, at least two blood vessel clamping mechanisms are arranged on the simulation silica gel layer, and the blood vessel clamping mechanisms are used for clamping and blocking the simulation blood vessels to be sutured. A movable swinging mechanism is arranged on the training table and is connected with at least two groups of blood vessel clamping mechanisms; the authenticity of blood vessel suture nursing simulation training of the simulation training device can be improved, and a trainee can better experience dynamic changes of blood vessels in a real operation.

The utility model relates to a waste heat boiler, and relates to the technical field of waste heat recovery, the waste heat boiler comprises a boiler barrel and a flue gas radiation box, the flue gas radiation box is provided with an inlet flue, an outlet flue and a membrane type water cooling wall, and the boiler barrel communicates with the membrane type water cooling wall through a downcomer and is used for providing water for the membrane type water cooling wall; the flue gas radiation box is communicated with the boiler barrel through an ascending pipe and is used for introducing a steam-water mixture generated by water heated by flue gas at high temperature in the membrane water cooling wall into the boiler barrel; a flue gas staying piece is further arranged in the flue gas radiation box and used for prolonging the staying time of flue gas in the flue gas radiation box so as to prolong the heat exchange time. Compared with the prior art, the waste heat boiler is better in sealing performance through the arrangement of the membrane type water cooling wall, the problem of high-temperature flue gas leakage can be solved, the manufacturing period can be shortened, and the boiler manufacturing cost can be reduced.

The utility model discloses a tunnel ditch structure which comprises a reserved ditch and a water tank base arranged in the reserved ditch, a through hole is formed in the bottom of an inner cavity of the water tank base, a barrel is integrally arranged at the front and rear positions of the left side of the water tank base, and a rotating shaft is movably connected to the inner surface of the barrel. A cover plate body is fixedly connected to the opposite sides of the rotating shafts, a leakage hole is formed in the top of the cover plate body, connecting bases are fixedly connected to the front and rear positions of the cover plate body, and sliding ways are formed in the inner surfaces of the connecting bases. The drainage effect is improved in a leakage mode through the through hole in the bottom of the inner cavity of the water tank base, meanwhile, the rotating shaft rotates on the inner surface of the barrel to open the connecting base in a rotating mode, the filter screen slides into the sliding way in the connecting base through the sliding block, water flows through the filter screen through the leakage hole, and the water flow is discharged. Impurities are filtered through filtering of the filter screen, and the purposes of leakage drainage and impurity filtering are achieved through the arrangement of the structure.

The utility model discloses an epitaxial wafer and a long-wave emission optoelectronic device. The epitaxial wafer comprises a substrate main body, wherein a selected surface of the substrate main body is provided with a plurality of boss structures which are distributed at intervals; the filling structure layer comprises a plurality of first filling structures, and the first filling structures are correspondingly arranged on the top end faces of the boss structures; and the covering structure layer continuously covers the substrate main body and the filling structure layer, and the covering structure layer is also provided with a plurality of micropore structures. According to the utility model, the silicon nitride covering structure layer utilizes the nanoporous structure of the silicon nitride covering structure layer to reinforce the lateral epitaxy between the III-group nitride buffer layers, dislocation turns over the nanoscale microporous structure in the growth process, and the dislocation is prevented from extending upwards into the nitride light-emitting layer; the crystal quality of the nitride material is more effectively improved, the luminous efficiency of the epitaxial wafer is improved, and the problem of electric leakage of the epitaxial wafer is solved.

The invention discloses a semiconductor device and a manufacturing method thereof, and belongs to the technical field of semiconductors, and the manufacturing method comprises the steps: providing a substrate, forming a shielding gate lead groove and a shielding gate groove in the substrate, and enabling the opening width of the shielding gate lead groove to be smaller than half of the opening width of the shielding gate groove; a shield gate dielectric layer is deposited in the substrate and the groove; depositing a first gate material layer on the shield gate dielectric layer, wherein the surface of the first gate material layer is flush with the surface of the substrate; forming a protection layer on the first gate material layer, wherein the surface of the protection layer is flush with the surface of the shielding gate dielectric layer; performing inclined etching on two sides to remove the protection layer in the shield gate groove; removing a part of the first gate material layer in the shield gate trench to form a shield gate and a lead gate; forming an inter-gate dielectric layer with a flat surface on the shielding gate; and forming a control gate on the inter-gate dielectric layer. According to the semiconductor device and the manufacturing method thereof provided by the invention, the performance of the semiconductor device can be improved, and the production cost is reduced.

The invention discloses a concrete vibration table convenient to clean, and particularly relates to the technical field of vibration tables, the concrete vibration table comprises a base, a vibration table body is arranged at the top of the base, a plurality of damping springs are arranged between the base and the vibration table body, a vibration motor is installed at the bottom of the vibration table body, and a discharging opening is formed in one end of the vibration table body; a maintenance opening is formed in the other end of the vibration table body, a detachable auxiliary structure is arranged in the discharging opening, and a scraping structure is arranged in the vibration table body. When a test piece mold box filled with concrete is vibrated, an operator can conveniently move the vibrated test piece mold box away from the vibration table body, the continuous carrying burden of the operator is relieved, the whole device is convenient to clean and maintain, and the using effect is improved.

The invention discloses a double-grid-based GaN high-electron-mobility transistor structure and a preparation method of the double-grid-based GaN high-electron-mobility transistor structure. The transistor structure comprises a substrate, a nucleating layer, a buffer layer, a channel layer, a barrier layer and a dielectric layer from bottom to top. Two sides of the dielectric layer are respectively provided with a source trench and a drain trench, and a gate structure is arranged between the source trench and the drain trench. The gate structure comprises a left gate structure close to the source trench and a right gate structure close to the drain trench, and the left gate structure and the right gate structure are isolated through a dielectric substance. According to the structure, the electric field of the right grid electrode can be adjusted by the left grid electrode under the same grid voltage of the transistor, distribution is more uniform, and grid electrode electric leakage is improved. Meanwhile, the energy band change of the left side grid is small, hole dissipation and electron capture are reduced, and therefore the dynamic threshold value of the device is improved. On the premise of losing certain on resistance and gate capacitance, the saturation source and drain current of the device is improved, the gate electric leakage is reduced, and the gate reliability is improved.

The invention discloses a contact lens care solution capable of moisturizing, lubricating and resisting bacteria for a long time and a preparation method thereof, and the care solution comprises the following components in percentage by mass: 1.0-2.5% of polyglycerol ether-26; 2.0%-3.5% of a composite natural bacteriostatic agent; 1.0 to 2.0 percent of a thickening agent; 1.5%-2.5% of a surface active agent; 0.15%-1.8% of a pH regulator; 8.5-9.0% of an osmotic pressure regulator; and the balance of purified water. The composite natural bacteriostatic agent is a mixture of catechin and ginkgetin. The preparation method comprises the following steps: adding part of purified water into a container, then adding polyglycerol polyether-26, the composite natural bacteriostatic agent, the thickening agent and the surfactant, then supplementing part of purified water, and stirring for dissolving; adjusting the pH value of the solution to 6.5-7.8 and the osmotic pressure to 260-340 mOsm / kg.H2O, finally adding the balance of purified water, and uniformly stirring; and filtering and sub-packaging to obtain the product. According to the invention, polyglycerol ether-26 has high moisturizing and lubricating properties, catechin and ginkgetin have a synergistic effect, so that the antibacterial property can be improved, and as a natural plant extraction component, the eye cream is non-irritant when entering eyes, is higher in safety and can play a role in protecting the eyes.

A microelectronic device (100) includes a GaN FET (102) on a substrate (104), such as silicon, and a buffer layer (106) of p-type GaN semiconductor material. The GaN FET (102) includes a gate electrode extension (146) including a p-type GaN semiconductor material (120) in electrical contact with a gate electrode p-type GaN stack (124). The gate electrode extension (146) including a p-type GaN semiconductor material (120) in electrical contact with the gate electrode p-type GaN stack (124) may improve characteristics of the GaN FET (102), such as off-state leakage, sub-threshold voltage, and post stress Vt shift.

The application relates to the technical field of unmanned vehicle hangars, in particular to a self-cleaning unmanned vehicle hangar, which comprises a hangar box body, an opening is formed at the upper end of the hangar box body, and a mounting cavity is formed at the inner side of the hangar box body; a mounting frame is arranged at the inner side of the mounting cavity, a lifting mechanism is fixedly arranged on the mounting frame, a sand blocking plate is fixedly connected to the lifting end of the lifting mechanism, the sand blocking plate is conical, a receiving platform is fixedly connected above the sand blocking plate, the receiving platform comprises a supporting frame and a supporting net plate, the supporting frame is rectangular, the supporting net plate is formed at the inner side of the supporting frame, and the supporting net plate supports unmanned vehicles; and a homing mechanism for moving the position of the unmanned vehicle is arranged on the supporting frame. Through the above technical scheme, the sand and dust on the receiving platform can be automatically cleaned, a large amount of sand and dust can be prevented from accumulating on the receiving platform, and the accuracy of the unmanned vehicle homing in the hangar can be ensured.

A slip ring seal arrangement comprises: a slip ring seal (2) having a rotating slip ring (3) and a stationary slip ring (4) which define a sealing gap (5) between sliding surfaces (3a), (4a) thereof; a retaining member (6), (7) arranged at a back side (3b), (4b) of one of the slip rings (3, 4), the retaining member (6), (7) having a base surface (60), (70) directed towards the back side (3b), (4b) of the slip ring (2), (4), the base surface (60), (70) comprising a rib (10) protruding in an axial direction of the slip ring seal and a first annular groove (8) and a second annular groove (9), wherein the first annular groove (8), the second annular groove (9) and the annular rib (10) are arranged concentrically with respect to one another, and the annular rib (10) protrudes beyond said base surface (60), (70) of the retaining member (6), (7) by a length s, where the annular rib (10) is in contact with the back side (3b), (4b) of the slip ring (3), (4) to provide support at the back side thereof, where the annular rib (10) is arranged between the first annular groove (8) and the second annular groove (9), and wherein the first annular groove (8) and the second annular groove (9) are arranged in close proximity to the annular rib.

The utility model relates to the technical field of park greening, in particular to a weeding device for landscaping maintenance and afforestation, which comprises a machine body, a mounting plate is fixedly connected to the machine body, a fixing ring is fixedly connected to the bottom of the mounting plate, a rotating ring is rotatably connected to the fixing ring, and fixing plates are fixedly connected to two sides of the rotating ring. The bottom of each fixing plate is fixedly connected with a fixing rod. Compared with the prior art, through the cooperation of the fixed block and the movable sleeve, the height of the cutting knife can be adjusted, the fixed bolt can be detached, the sliding distance of the movable sleeve on the fixed block is adjusted, after the fixed hole and the positioning hole are aligned, the fixed bolt is installed, meanwhile, the arranged wheels make contact with the ground, and therefore the cutting knife can be fixed. The purpose of supporting the mounting plate is achieved, so that the cutting knife can be always kept at a certain height, and when a lawn is trimmed, the trimmed lawn is kept clean and tidy.

The invention provides a top-free air curtain type dissecting table which is characterized in that a table base is provided with a first side end and a second side end which are parallel in the length direction and a third side end and a fourth side end which are parallel in the short direction, the first side end, the second side end and the third side end are respectively provided with a first air suction groove, a second air suction groove and a third air suction groove, and an air extractor is communicated with the first air suction groove, the second air suction groove and the third air suction groove; the frame comprises a first vertical plate, a rear baffle plate and a second vertical plate which are continuously arranged, the first vertical plate, the rear baffle plate and the second vertical plate are respectively connected with the top edges of the first side end, the fourth side end and the second side end, and a containing space is defined by the frame; the first vertical plate is provided with at least one first penetrating part, the top end of the first vertical plate is provided with a first air blowing piece, and the first air blowing piece is matched with the first air suction groove to form an air curtain, so that pollution gas in the containing space is extracted and prevented from leaking.

The utility model discloses a semiconductor device. The semiconductor device includes: a substrate; the buffer layer is positioned on one side of the substrate; the channel layer is located on the side, away from the substrate, of the buffer layer; the composite barrier layer comprises a first barrier layer and a second barrier layer, the first barrier layer is located on the side, away from the buffer layer, of the channel layer, and the second barrier layer is located on the side, away from the channel layer, of the first barrier layer; the band gap of the second barrier layer is larger than that of the first barrier layer; the dielectric layer is located on the side, away from the channel layer, of the composite barrier layer; the grid is located on one side, away from the composite barrier layer, of the dielectric layer; the source electrode is located on the side, away from the channel layer, of the composite barrier layer; and the drain electrode is positioned on one side, far away from the channel layer, of the composite barrier layer. According to the technical scheme, the dynamic characteristics of the depletion type gallium nitride semiconductor device are improved.

The utility model relates to a novel mould, which relates to the technical field of moulds and comprises a male mould base and a female mould base, a frame plate is arranged on one side of the female mould base, and movable openings are arranged on one side of the female mould base close to the other two sides. The cooling device has the beneficial effects that the connecting pipe can be externally connected with a water flowing pipe, flowing water can flow into the cooling water flowing groove through the water filling nozzle, so that the female die holder and a shaped product in the female die holder can be cooled, the purpose of cooling is achieved by absorbing the temperature of an object due to the fact that the specific heat capacity of the water flow is large, and then water absorbing heat is discharged through the water outlet; new water flow continuously and circularly flows in, the purpose of continuous cooling is achieved, the waiting time of personnel is saved, the injection molding production efficiency of the mold can be improved as much as possible, a pushing column can penetrate through a movable opening through an extrusion circular plate, and a product in the female mold base is demolded and pushed out, so that convenience can be brought to the personnel to take down the product.

A semiconductor device and a manufacturing method thereof, and an electronic device, the method comprising: providing a semiconductor substrate, a shallow trench isolation structure formed in the semiconductor substrate, and a first etch stop layer formed on the semiconductor substrate between adjacent shallow trench isolation structures; etching back the first etch stop layer to obtain a second etch stop layer, the width of the second etch stop layer being smaller than the width of the first etch stop layer; ion implanting the semiconductor substrate using the second etch stop layer as a mask to form a source-drain region in the semiconductor substrate; removing the second etch stop layer; forming a gate electrode layer on the semiconductor substrate; forming a sidewall structure on the sidewall of the gate electrode layer, the top of the sidewall structure being flush with the top of the gate electrode layer. The present invention uses an etch stop layer to define the source-drain ion implantation region, and does not need to etch the sidewall structure to form a slanted shoulder structure with a sharper top. The sidewall with uniform width can increase the effective distance between the gate and the contact hole, and improve the leakage problem.

The utility model discloses a chlorine liquefier tube head welding structure which comprises a tube plate and a plurality of heat exchange tubes, and the heat exchange tubes are arranged on the tube plate in a penetrating mode. The length of the part, extending out of the tube plate, of the tube head of the heat exchange tube is 0-1mm; the tube plate is provided with a groove used for being connected with a heat exchange tube, and the angle of the groove ranges from 45 degrees to 60 degrees. The heat exchange tube is in interference fit with the hole wall of the tube plate through expanded connection, and the groove is filled with a welding seam to fixedly connect the heat exchange tube with the tube plate. According to the chlorine liquefier pipe head welding structure, the welding quality of the chlorine liquefier pipe head can be improved, the connection reliability is enhanced, and leakage is effectively prevented.

This application discloses an electric rice cooker with a metal inner lid, including a pot body, an inner pot, and a lid. The lid includes a plastic lid assembly and a metal inner lid. The metal inner lid is mounted on the plastic lid assembly and has a sealing surface that mates with the inner pot. The metal inner lid directly covers the inner pot to form a cooking cavity. A cooling device is provided inside the plastic lid assembly. The plastic lid assembly has an air inlet on the side facing the external environment. The air inlet of the cooling device is connected to the air inlet. An air duct is provided in the lid, and the air duct has an air outlet located at the rear of the rice cooker in the front-to-back direction. The cooling device generates airflow that is guided through the air duct to cool the metal inner lid, causing condensation to form on the lower surface of the metal inner lid. At least part of the condensation flows into the sealing surface to form a water seal. This improves the steam leakage problem that may occur at this joint in existing rice cookers, reduces the impact of hot airflow on the user, and enhances the user experience.

The utility model discloses a titanium alloy pipe sealing detection equipment relates to industrial detection and quality control technical field, including bottom plate, moving assembly, sealed connection subassembly, nitrogen storage and delivery subassembly and detection component, the bottom plate upper end is equipped with moving assembly, nitrogen storage and delivery subassembly and detection component, moving assembly contains dovetail type sliding slot, two -way threaded rod no.

The utility model relates to the technical field of batteries, and discloses a liquid injection hole sealing element and a battery cell cover plate, the liquid injection hole sealing element comprises a sealing nail and a strengthening structure; the sealing nail is provided with a containing space, and the containing space extends in the axial direction of the sealing nail and penetrates through the first surface of the sealing nail. At least part of the reinforcing structure is arranged in the containing space, the reinforcing structure is connected with the sealing nail, and the hardness of the reinforcing structure is larger than that of the sealing nail. According to the liquid injection hole sealing element disclosed by the utility model, the two parts with different hardness are matched and connected, and injection molding parameters can be independently optimized according to the hardness requirements of each part, so that the injection molding difficulty of the tail part of the sealing nail is reduced, the manufacturing requirements of the liquid injection hole sealing element are reduced, the manufacturing difficulty is reduced, and the production efficiency is improved; and the hardness of the reinforcing structure is greater than that of the sealing nail, so that nail insertion of equipment is facilitated, and meanwhile, the risk of head-to-tail adhesion of adjacent liquid injection hole sealing elements in the transportation process is reduced.

The application discloses an engine fuel injection pump performance test platform and relates to the technical field of fuel injection pump performance test.The application comprises a test table, a test drive is installed on the test table, a mounting seat is installed on the upper surface of the test table, a fuel injection pump with a thermocouple is installed on the mounting seat, a test cover is slidably connected to the upper surface of the test table, electric heating radiators are linearly arranged on the inner wall of the test cover, an independent cold cavity is arranged on the outer side of the test cover, and the cold cavity can be connected with the test cover.Through the double-environment cavity formed by the test cover and the cold cavity, the inside of the test cover simulates a high-temperature environment, the cold cavity simulates high-speed cooling air flow, a heating surface simulates a hot radiation surface close to an engine cabin, and a windward surface simulates a wind surface of a fuel injection pump in the process of vehicle driving, so that the test result is closer to reality, and the extreme transient working condition of high-speed impact of a car into rain or alternating impact of high-temperature and low-temperature air can be accurately simulated.

The utility model relates to an inorganic cementing material oxidation treatment device, which comprises a treatment box and a feeding channel, the end part of the feeding channel is communicated with the top side of the treatment box, two treatment rollers are rotatably arranged between two inner side walls of the treatment box, and two baffles are oppositely arranged between the two treatment rollers. The utility model relates to the technical field of mortar oxidation treatment. When the oxidation treatment device for the inorganic cementing material is used, bagged mortar and bagged powdery chemical agents can be directly unsealed, and the mortar and the chemical agents are put into a mixing device after being unsealed, so that the contact between the mortar bag and the outside is reduced, the contact between the mortar and the outside is also reduced when the bagged mortar and the bagged powdery chemical agents are cut, and the production efficiency is improved. And dust is prevented from rushing into the air when the mortar and the chemical agent are subjected to oxidation treatment, and is further inhaled into the body of the constructor, so that the body of the constructor is prevented from being damaged.

An air conditioner using a flammable refrigerant as a refrigerant includes first refrigerant detection sensor (40) and second refrigerant detection sensor (41) that detect refrigerant leakage. Second refrigerant detection sensor (41) is provided with external air blocking unit (45) that blocks external air coming to sensor (42a) of second refrigerant detection sensor (41), and release unit (48) that releases blocking of external air by external air blocking unit (45).

The invention provides a method for improving channel electric leakage of a medium-voltage device, and the method comprises the steps: providing a semiconductor substrate which at least comprises a medium-voltage device region, shallow trench isolation structures are formed in the semiconductor substrate in the medium-voltage device region, and the semiconductor substrate between the shallow trench isolation structures is an active region, the surface of the shallow trench isolation structure is higher than the surface of the semiconductor substrate of the active region; etching the shallow trench isolation structure by adopting an etching process so as to reduce the height of the shallow trench isolation structure; performing back etching on the active region, wherein the surface of the active region after back etching is lower than the surface of the etched shallow trench isolation structure; forming an oxide layer on the surface of the active region and the surface of the shallow trench isolation structure; and forming a high dielectric material layer on the surface of the oxide layer. The problem that an existing medium-voltage device is prone to electric leakage is solved.

The utility model relates to the technical field of vertical water pumps, in particular to an anti-oil-throwing oil tank sealing device of a vertical water pump, which comprises a motor, a connecting piece is fixedly mounted at the bottom of the motor, a shell is fixedly mounted at the bottom of the connecting piece, a rotating shaft is fixedly mounted at the driving end of the motor, and an oil tank is fixedly mounted at the top of the shell. According to the anti-oil-throwing oil tank sealing device of the vertical water pump, the motor, the shell, the connecting piece, the oil tank, the lower sealing cover, the upper sealing cover, the rotating shaft, the shaft sleeve, the rubber sealing ring, the annular embedded part, the sealing lip, the oil retainer, the oil collecting groove and the recycling hole are used in cooperation, and unrelated parts in the device are the same as those in the prior art or can be achieved through the prior art. The sealing device has excellent anti-leakage performance, the oil retainer and the oil collecting groove on the shaft sleeve can effectively block and collect thrown lubricating oil, the lubricating oil flows back to an oil tank through the recovery hole, and the oil throwing prevention effect is enhanced.

The utility model discloses a level shifter, a driving circuit and a display device, and the level shifter comprises an input circuit which controls one of a first output node and a second output node to be electrically connected to a first power supply voltage according to a first input signal and a second input signal which are inverted; an output circuit for controlling the voltage of another output node to be equal to the second power supply voltage according to the voltage of the output node electrically connected to the first power supply voltage; a boosting circuit for boosting a voltage of a boosting node corresponding to an output node electrically connected to the first power supply voltage to a second power supply voltage; the at least one inverter is used for inverting the voltage of the at least one output node so as to obtain an output voltage, and in the process that the boost circuit raises the corresponding pull-up node to a second power supply voltage, when the voltage of the corresponding pull-up node reaches a first voltage, the output voltage of the at least one output node is output. And the second pull-up unit pulls up the voltage of the node to a second power supply voltage so as to improve the electric leakage problem of the phase inverter.

The movable garbage can comprises a sealing cover, a garbage bag supporting assembly, a fixing plate, a hanging plate, a drawing type sliding rail, supporting rods, a first garbage can body and a second garbage can body, the first garbage can body is located on one side of the second garbage can body, and baffles are arranged at one ends of the two supporting rods; the garbage bag supporting assemblies are arranged in the first garbage can and the second garbage can correspondingly. According to the scheme, the drawing type sliding rail is drawn, the sealing cover is placed in the cabinet, the occupied kitchen moving line space is reduced, the kitchen activity hindrance is reduced, when the garbage can is used, the first garbage can and the second garbage can are pulled out of the sealing cover through the baffle to be used, one side of the baffle is attached to the sealing cover, and therefore the garbage can is convenient to use. The upper portions of the first garbage can and the second garbage can are in a relatively sealed state, leakage of garbage smell in the first garbage can and the second garbage can can be reduced, and air pollution is reduced.