403results about How to "Prevent infiltration" patented technology

The invention relates to the technical field of metal materials, in particular to a high-strength steel material for mine roadway support and a preparation method thereof, and the high-strength steel material comprises the following components in percentage by weight: 0.04 to 0.10 percent of C, 0.15 to 0.45 percent of Si, 1.20 to 1.80 percent of Mn, 0.20 to 0.50 percent of Cu, 0.15 to 0.40 percent of Cr, 0.10 to 0.35 percent of Ni, 0.08 to 0.25 percent of Mo, 0.015 to 0.045 percent of Nb, 0.03 to 0.08 percent of V, 0.008 to 0.025 percent of Ti, 0.005 to 0.020 percent of RE and the balance of Fe. The preparation method comprises the steps of smelting and refining, continuous casting, heating, rough rolling, finish rolling, segmented controlled cooling and medium-temperature tempering (450-550 DEG C), R is larger than or equal to 620 MPa, A is larger than or equal to 18%, the yield ratio is smaller than or equal to 0.90, KV at 0 DEG C is larger than or equal to 100 J, and the deep-well high-stress roadway support is suitable for deep-well high-stress roadway support.

The application relates to a swing granulator seven-star roller and a mounting structure thereof. The swing granulator seven-star roller and the mounting structure thereof comprise a seven-star roller body, the seven-star roller body is in a cylindrical working surface structure, seven convex granulation corners are uniformly arranged on the outer peripheral wall of the seven-star roller body, the working surfaces of the granulation corners are all arranged in arc structures, and the arc structures are matched with a screen of the swing granulator; a roller mounting mechanism, which comprises a rack, a bearing seat, a bearing arranged in the bearing seat and a rotating shaft penetrating through the bearing, the rotating shaft is connected with an end shaft of the seven-star roller body, the bearing seat is mounted on the rack, a material seepage discharge port is formed in the rack at the bottom of the bearing seat; and a sealing assembly, which is sleeved on the rotating shaft and located at the opening end of the bearing seat. The material can be more fully and uniformly extruded, the hardness of wet particles is effectively improved, the generation of fine powder after drying is reduced, the quality of granular products is improved, the dead angle residual of the material in the equipment is reduced, and the material waste is reduced.

The utility model relates to battery pack heat preservation technical field, concretely is a kind of structure of improving the heat preservation performance of battery pack upper cover, including upper cover body, the inner surface of upper cover body is equipped with the honeycomb cavity of uniform distribution, the honeycomb cavity is filled with aerogel particles, the outside of honeycomb cavity is equipped with the heat insulation layer of integration with upper cover body, the heat insulation layer is inlaid with multiple heat-conducting fibre bundles;The outer surface of upper cover body is equipped with several micropore array, and the micropore array is filled with graphene coating.The utility model can significantly improve the heat preservation effect of battery pack under low temperature environment, simultaneously under high temperature condition, the excess heat generated by battery module is quickly exported, and heat accumulation is avoided.

The utility model discloses a building toilet seepage water integral isolation drainage drainage waterproof device which comprises a drainage pipe arranged at the upper end of a sewage drainage pipe, a PVC (polyvinyl chloride) floor sealing plate is arranged on the inclined surface of a floor, a stainless steel filter plate is arranged on the PVC floor sealing plate, an accumulated water overflow cover is fixedly arranged in the middle of the PVC floor sealing plate, and the drainage pipe is arranged on the drainage pipe. Grid holes are formed in the upper end of the accumulated water overflow cover, a geotechnical cloth layer is arranged in a cavity between the accumulated water overflow cover and the stainless steel filter plate, a PVC side face sealing plate is arranged on the inner side face of the wall body, the lower end and the side face of the PVC side face sealing plate are integrally provided with bent connecting edges, and the connecting edges enable the PVC side face sealing plate and the PVC floor sealing plate to achieve electric melting sealing connection at the wall corner. The utility model not only has a simple structure and is convenient to manufacture and construct, but also can effectively prevent seepage water from seeping into the floor of the toilet, and effectively solves the hidden danger of water leakage and the difficult problem of water prevention at the place where the toilet of the building is contacted with the pipe and at the corner.

The invention relates to the technical field of settlement post-cast strips, in particular to a pre-closed advanced water stop grouting device and method.The pre-closed advanced water stop grouting device comprises a basement top plate, a bottom plate, a cover plate and a grouting sleeve and further comprises a self-adaptive adjusting assembly; the self-adaptive adjusting assembly comprises an inner cylinder, an outer cylinder, a spring, a sealing ring and a pre-tightening force adjusting component, and when the building body settles, the cover plate descends to drive the outer cylinder to descend, and then the spring is extruded; the springs on the two sides generate reverse buffering force after being compressed, the force is transmitted to the cover plate through the outer cylinder, the internal stress of the cover plate caused by differential settlement is effectively counteracted, and it is avoided that a sealing structure at the joint of the cover plate and a basement top plate cracks due to rigid pulling; and after the settlement is stable, pressure grouting is performed through the grouting sleeve, so that the problems of cracking of the cover plate and failure of sealing structures such as a sealant and a waterproof coiled material due to rigid pulling are solved.

The utility model relates to the technical field of building wall waterproof structure, specifically is a kind of wall flashing element connecting structure, including wall, the horizontal purlin of being located in wall upper and the sandwich panel being connected with horizontal purlin, the outside of wall is provided with outer decorative layer, the bottom end of sandwich panel is connected with the "Z" shape flashing support, the end of flashing support away from sandwich panel is connected with flashing plate, and the upper end of flashing plate is connected with flashing support by fastener, and the bottom end of flashing plate extends to the outside of outer decorative layer. By first flashing support installation in the bottom end of sandwich plate, and flashing plate can be in the size measurement when wall starts to build, after measuring, it is processed again by factory, to reduce error, and after wall is completely built, it is installed again, since the installation position of flashing support and flashing plate is in the outside of wall, the problem that installation is inconvenient due to insufficient operation space is avoided.

The invention provides a crushing barrel for a kitchen waste machine wear function, which comprises a barrel body, the barrel body is movably provided with a crushing cutter, the barrel body is provided with a boss, the boss is provided with an assembly hole, the assembly hole is movably provided with a loose joint assembly, the crushing cutter comprises a rotating shaft, a cutting edge and a scraping plate, the rotating shaft is fixedly connected with the cutting edge and the scraping plate, and the rotating shaft is provided with a connecting column. The connecting column is fixedly connected with the loose joint assembly through a bolt, the rotating shaft is provided with a blocking ring, and the blocking ring is movably connected to the outer side of the boss in a sleeving mode. The boss prevents liquid from entering the assembly hole, the rotating shaft of the crushing cutter is provided with a connecting column and a blocking ring, the connecting column is fixedly connected with the loose joint assembly through a bolt, the blocking ring is movably connected to the outer side of the boss in a sleeving mode, and the blocking ring prevents kitchen waste residues and liquid from entering the assembly hole in the crushing process of the crushing cutter; liquid is prevented from entering the assembly hole and permeating into the kitchen waste machine, and the service life of the kitchen waste machine is prolonged.

The invention relates to the technical field of slope supporting construction of constructional engineering, and particularly discloses a redundant and safe reinforced soil structure and a construction method. Reinforced soil is of a multi-step structure and is constructed on a weathered rock foundation; the reinforced soil sequentially comprises a plain concrete foundation, multiple layers of integral steel-plastic geogrids, a graded broken stone drainage layer, a clay water-resisting layer, a waterproof geomembrane, a concrete sealing bottom and plain filling soil from bottom to top, and reinforced concrete panels are poured on the outer sides of the integral steel-plastic geogrids. A reinforced concrete foundation is arranged at the bottom of the reinforced concrete face plate, a cement soil cushion layer is laid at the bottom of the reinforced concrete face plate, drainage holes and pre-embedded steel tie bars are arranged in the reinforced concrete face plate, the pre-embedded steel tie bars and the whole steel-plastic geogrids are bundled up, and a gravel inverted filter bag is arranged in each layer of steel-plastic geogrids. The clay water-resisting layer and the gravel drainage layer are laid to achieve redundant safe water prevention and drainage, the construction period is controllable, and the manufacturing cost is relatively low.

This application relates to the field of electronic atomization equipment technology, specifically an atomizer comprising a liquid cup, an atomizing core assembly, a base assembly, a bracket, and a first sealing element. The bracket rests against and is linked to the base assembly, and has a liquid inlet hole. Under external force, the base assembly moves the bracket so that the liquid inlet hole is located inside the liquid cup, which communicates with the atomizing core assembly through the liquid inlet hole. This application also relates to an aerosol generating device. The technical solution provided by this application enables the base assembly and the atomizing core assembly to be connected, with the atomizer in a pre-assembled state, i.e., a liquid-core separated state, preventing the aerosol matrix from seeping into the atomizing core assembly and then leaking out from the air passage. This structure maintains the freshness of the aerosol matrix, facilitating replacement, maintenance, and cleaning, thus improving the user experience. It eliminates the need for users to assemble the atomizer themselves, and the atomizer has a simple structure and high stability, meeting user needs.

The utility model provides a kind of laying plate for temporary construction road, belong to building construction technical field, to solve the problem of laying plate upper surface water and easily lead to safety hazard.This device includes multiple groups of road board main part, and the two sides of road board main part adjacent are respectively fixedly connected with the upper connecting plate and lower connecting plate connected by cooperation clamping;Connecting block, fixedly connected in the length direction both ends of lower connecting plate or upper connecting plate and provided with threaded hole;Upper slope plate and lower slope plate are set in the outermost side of multiple groups of connected road board main part and respectively connected with lower connecting plate and upper connecting plate clamping;Waterproof pad, set in road board main part and slope board lower surface;The combination surface between lower connecting plate and upper connecting plate, lower connecting plate and upper slope plate, upper connecting plate and lower slope plate is all maze structure.This device is through the form of cooperation clamping of maze and the setting of waterproof pad, reduce the safety hazard caused by laying plate surface water penetration to temporary construction road.

The invention discloses application of a palmitoylation inhibitor in prevention and treatment of gastric cancer. The chromatin remodeling protein SNF2 derived from S.anginosus EVs can be combined with a transcription factor TEAD1, so that the transcription of the palmitoyl transferase ZDHHC11 is promoted together. Then, the stability of the ZDHHC11 is enhanced by catalyzing palmitoylation of PD-L1, and finally immune escape is induced. In addition, SNF2 also can activate AXL, CTGF, CYR61 and other carcinogenic targets at the downstream of TEAD1, thereby further accelerating the malignant progression of gastric cancer. In an in-vivo experiment, the intragastric administration of the S.anginosus EVs not only promotes the tumor growth of mice, but also significantly inhibits the infiltration of CD8 + T cells. Blocking of ZDHHC11 can effectively reverse immune escape, and has a synergistic effect with an anti-PD-1 therapy, so that the treatment effect is remarkably improved.

The invention relates to the technical field of tire treatment equipment, in particular to a waste tire cracking utilization device which comprises a cracking box, an upper cover is rotatably arranged at the upper end of the cracking box, a locking structure is arranged on the upper cover, and a cracking chamber for cracking waste tires is arranged in the cracking box. A heating mechanism for heating waste tires is arranged on the cracking chamber, an oil collecting tank matched with the heating mechanism is arranged at the lower end of the cracking chamber, a plugging mechanism matched with the oil collecting tank is arranged in the cracking chamber, and an upper cover is fixed by arranging a locking structure. The upper cover and the feed port of the cracking box form a sealing structure to prevent air permeation, and the plugging mechanism is arranged to plug the cracking chamber to form a sealing structure, so that air cannot enter the cracking chamber during reaction, the cracking chamber can be in an anoxic state, and liquid oil, gas and solid carbon black produced by cracking reaction are good in quality. The production efficiency is high.

The utility model belongs to the technical field of automobile air conditioner condensers, and particularly relates to an automobile air conditioner condenser with an auxiliary butt joint structure, which comprises a connecting pipe and radiating fins, the surface of the connecting pipe is connected with a fixing lug, the surface of the connecting pipe is provided with a through mounting hole, the top end of the fixing lug is connected with a fixing block, and the top end of the fixing block is connected with the radiating fins. A clamping block is arranged at the bottom end of the fixing block, a U-shaped groove is formed in the surface of the clamping block in a penetrating mode, and a groove is formed in the fixing block. According to the utility model, the fixing block is matched with the clamping block, so that the fixing lug at the top end of the automobile air conditioner condenser can be lapped on the butt joint piece of the water tank. Afterwards, by means of matching of the I-shaped bolts and the butt-joint blocks, the water tank butt-joint piece fixing device can be matched with butt-joint pieces of water tanks with different thicknesses, the positions of the fixing lugs and the water tank butt-joint pieces can be fixed, and the mounting holes correspond to assembly holes in the water tank butt-joint pieces in position. In this way, the automobile air conditioner condenser is convenient to install, and the situation of manual hand lifting assembly is avoided.

The application discloses an automatic mobile phone cleaning device with atomization cleaning and rapid drying functions, which comprises a rack main body, a clamping positioning mechanism arranged in the middle of the rack main body, an atomization mechanism comprising a cleaning liquid storage device and an atomization nozzle, a cleaning mechanism comprising a cleaning bottom plate, a brush and a fiber cloth piece, and a drying mechanism comprising a centrifugal fan. The cleaning mechanism realizes up-down reciprocating movement through a gear and rack transmission device. Two groups of ball screw transmission modules are connected with the clamping positioning mechanism and the cleaning mechanism respectively to drive the clamping positioning mechanism and the cleaning mechanism to move linearly. A control module is integrated with a single-chip microcomputer, a stroke sensor, a driving motor and a power supply control. The application improves the cleaning efficiency and use safety, simplifies the structure, reduces the cost and is suitable for household and commercial scenes.

This utility model provides a waterproof structure for a photoelectric sensor, including a protective housing and a photoelectric sensor body. The protective housing has an installation cavity, within which the photoelectric sensor body is housed. A cover plate is also provided on one side of the protective housing, and the cover plate is integrally connected to the protective housing by screws. Assembly grooves are provided on both opposite inner surfaces of the installation cavity, and clamping blocks are inserted into each groove, with the side of the clamping blocks furthest from the assembly groove contacting the photoelectric sensor body. The photoelectric sensor body has terminals, and corresponding to the terminals, wiring sections are provided on two adjacent sides of the protective housing and cover plate, with the terminals inserted within these wiring sections. A sealing strip is embedded in the mounting groove on the edge of the cover plate, and when compressed, it adheres to the housing to prevent water seepage. The wiring section assembly section has a sealing isolation ring that wraps around the terminals of the photoelectric sensor body to form a seal, providing double protection against moisture intrusion and ensuring the sensor's usability.

The utility model discloses an automatic cable take-up and pay-off device for building construction, which comprises a bottom plate, moving wheels are mounted at four corners of the bottom of the bottom plate, a take-up and pay-off assembly is fixedly mounted at one end of the top of the bottom plate, and an adjusting assembly for adjusting the diameter of a take-up roller is fixedly mounted on the inner side of the take-up and pay-off assembly. According to the automatic cable winding and unwinding device for building construction, by means of the adjusting assembly and the pushing assembly, the diameter of the winding roller can be changed through pushing and pulling of the electric push lever, the winding roller is driven to rotate, the winding roller is driven to rotate, and the winding roller is driven to rotate. The cable winding device can adapt to winding work of different cables, the winding roller does not need to be manually replaced, the working efficiency is improved, through the clamping assembly, when winding and unwinding are conducted, the surface of the cable is synchronously cleaned through cooperation of a belt wheel and a transmission belt, pollutants are prevented from permeating into cable skin gaps, and an insulating layer is prevented from being corroded or abraded.

The invention provides a construction method of a prefabricated assembled roadbed structure of a new and old expressway, which comprises the following steps: S1, carrying out stepped excavation on an old roadbed splicing area, and connecting a plurality of first splicing units with an old roadbed through a longitudinal insertion structure; s2, the first splicing units and the second splicing units are connected through first bolt connecting sets, and the second splicing units are connected through transverse inserting structures; s3, the adjacent first splicing units and the connected second splicing units are connected through second bolt connecting sets; s4, the first splicing unit and the second splicing unit are each connected with a leveling assembly used for adjusting the elevation and levelness of the first splicing unit and the second splicing unit; s5, sealing pieces are arranged between the first splicing units, between the first splicing units and the second splicing units and between the second splicing units; and S6, cast-in-place structures are arranged at the joints of all the splicing structures, the site cast-in-place workload is reduced, and rapid splicing of the new roadbed and the old roadbed is achieved.

The utility model discloses a kind of sign panel mounting structures of fire emergency lamps, including fire emergency lamps shell and the installation slot for installing sign panel being opened in fire emergency lamps shell, further include, suction groove, at least one and opened in the inside of installation slot;Suction strip, same as suction groove, for fixing sign panel, and with suction is combined and set in the inside of suction groove;The inside of suction groove is provided with magnet, the inside of suction strip is provided with iron sheet, the surface of suction strip is smeared with the glue that sign panel is bonded, installation slot and sign panel are all provided with the bevel for preventing the installation position error of sign panel;By the suction mechanism of suction groove and suction strip, the preliminary fixation of sign panel is realized, without artificial continuous pressing when installing, simplify operation process.Through the bevel positioning mechanism on installation slot and sign panel, avoid panel installation misplacement, improve installation accuracy.

A surface acoustic wave (SAW) device includes: a piezoelectric layer; an interdigitated electrode structure located on the piezoelectric layer; a wiring layer located on the piezoelectric layer and electrically connected to the interdigitated electrode structure; an interconnect layer located on the wiring layer; bumps located on the interconnect layer; and a metallization structure located between the interconnect layer and the bumps, electrically connecting the interconnect layer and the bumps and preventing material from the bumps from penetrating into the interconnect layer. The metallization structure on the interconnect layer prevents the bumps from directly contacting the interconnect layer, instead connecting them electrically through the metallization structure. This prevents the material of the bumps from fusing with the material of the interconnect layer and intruding into the device, thus preventing semiconductor device failure and improving the performance of the semiconductor device. Furthermore, the metallization structure's location between the bumps and the interconnect layer enhances the adhesion between the bumps and the interconnect layer.

This invention discloses a multi-process synergistic method for strengthening and toughening titanium alloys. The method includes: firstly, pre-treating the titanium alloy surface with sandblasting; then, subjecting the pre-treated titanium alloy to solid embedding carburizing treatment; subsequently, under inert atmosphere protection, sequentially subjecting the carburized titanium alloy to solution treatment, rapid cryogenic treatment, and aging treatment; and finally, shot peening the surface of the heat-treated titanium alloy. This invention solves the problem in existing technologies where a single process is insufficient to synergistically improve the strength and toughness of titanium alloys, achieving a synergistic match between high strength and high hardness on the surface of the titanium alloy material and high toughness in the matrix.

The application discloses a manufacturing method, structure and use method of a greenhouse enclosure, and the manufacturing method comprises the following steps: providing a frame of a transparent hollow structure, the frame comprises oppositely arranged first and second substrates, and an air layer is formed between the first and second substrates; PAM hydrogel is arranged on the opposite inner sides of the first substrate, and PAM-LiCl hydrogel is arranged on the opposite inner sides of the second substrate to form a heat conduction unit; and a selective light-heat coating is coated on the opposite outer sides of the second substrate. Passive day and night two-way temperature regulation can be realized, and sustainable cyclic operation is realized.

The utility model discloses a kind of high-efficiency filters, belong to separation filtering technical field, it includes upper filter shell and lower filter shell;Upper filter shell includes top wall, and the bottom surface of top wall is coaxially provided with several upper cylinder shell;Lower filter shell includes bottom wall, and the top surface of bottom wall is coaxially provided with several lower cylinder shell;Upper filter shell and lower filter shell are docked after along up-down direction each upper cylinder shell and lower cylinder shell are alternately nested.The high-efficiency filter provided by the utility model prolongs the flow path of fluid in the filter of limited volume, makes fluid and filtering material fully contact, improves filtering efficiency;Upper filter shell and lower filter shell can be respectively integrally formed and processed, and assembly is convenient.

The utility model discloses an aluminum-plastic co-extrusion building system door and window which is composed of an outer frame, a mullion and a glass sash. Glass is arranged between the upper transverse frame and the middle transverse frame and between the lower transverse frame and the middle transverse frame; the upper transverse frame, the middle transverse frame and the lower transverse frame are each composed of an outer profile assembly and an inner profile assembly. The outer profile assembly comprises an outer plate and an outer profile; the outer plate is connected with the outer profile through a first heat preservation and insulation structure. The outer plate and the outer profile are connected through the first heat insulation structure, the outer profile and the inner profile body are connected through the second heat insulation structure, multiple heat resistance barriers are formed, the first heat preservation layers co-extruded on the two sides are matched, a heat conduction path is effectively blocked, and the door and window profile has good heat preservation and heat insulation performance; in addition, heat insulation type aluminum-plastic co-extrusion systematic doors and windows with different K values or U values are constructed by combining the outer sectional material, the sealing structure and different inner sectional material bodies.

This utility model relates to the field of magnet technology, and more particularly to a magnet with a sealing ring, comprising an axially magnetized magnet body, one end of which is formed with a plurality of first annular grooves, and the other end of which is formed with a plurality of second annular grooves. A first sealing ring is provided at the end of the magnet body near the first annular grooves, and the first sealing ring is formed with a plurality of first annular protrusions. A second sealing ring is provided at the end of the magnet body near the second annular grooves, and the second sealing ring is formed with a plurality of second annular protrusions. This utility model can not only reduce the rigid impact at the moment of adsorption, avoid generating unpleasant noise, and avoid the risk of breakage, but also greatly improve the sealing performance at the joint, prevent moisture, dust, and even insects from penetrating into the product and ensure the overall service life of the product, and is better suited for modular splicing products.

The present application relates to the technical field of transmitter, in particular to a kind of anti-condensation wind pipe type temperature transmitter, including the mounting bracket of fixed installation in the side wall of ventilation pipe, humidity detection component is fixedly installed in mounting bracket, temperature sensing tube is rotatably installed outside humidity detection component, the motor for driving temperature sensing tube rotation is fixedly installed in the side wall of mounting bracket, the dew removal device for removing condensation is equipped outside temperature sensing tube, both ends of temperature sensing tube are equipped with plugging component, and plugging component removes the plugging of temperature sensing tube end when temperature sensing tube rotates.The present application utilizes low-temperature high-humidity condition to trigger temperature sensing tube rotation, removes condensation by centrifugal throwing, and cooperates with reciprocating scraping to completely remove surface condensation, simultaneously utilizes friction micro-heat to improve pipe wall temperature, which is higher than dew point temperature, to inhibit condensation from generating again from source, while ensuring temperature measurement accuracy, significantly reduces equipment power consumption, solves the problems of poor anti-condensation reliability, high energy consumption and serious temperature measurement drift of traditional products.

The utility model provides a kind of top protective device for air blower set sound shield, it includes left side protective cover, middle protective cover, right side protective cover, the outside of left side protective cover, middle protective cover, right side protective cover is respectively equipped with the outer baffle that is bent downwards, left side protective cover, middle protective cover, right side protective cover are sequentially pasted from left to right, and adjacent outer baffle is sequentially pasted, and form complete back type outer baffle, the bottom of left side protective cover is equipped with the annular groove of right side opening, the bottom of middle protective cover is equipped with the annular groove of left and right two side openings, the bottom of right side protective cover is equipped with the annular groove of left side opening, left side protective cover, middle protective cover, right side protective cover are sequentially pasted from left to right, and adjacent installation groove is sequentially pasted, and form complete back type installation groove.The protective device can avoid rainwater along the upper end gap of sound shield inward infiltration, will not cause damage to air blower set.The utility model can be widely applied to the protection of sound shield.

The application provides a shield balancing mud for a shield machine and a preparation method thereof, and belongs to the field of shield tunnel engineering. The shield balancing mud comprises the following raw materials: modified clay base material: 100 parts, composite flocculating agent: 6-15 parts, tackifying water-retaining agent: 1.5-4 parts, water-dispersing agent: 0.5-2.5 parts, organic crosslinking agent: 0.3-1.2 parts, thixotropy adjusting agent: 0.2-1.5 parts, and pH adjusting agent: 0.5-4 parts. In the application, the high-activity modified clay is used as a skeleton, the inorganic flocculation network is used to provide a dense structure resistant to water erosion, the borax-cellulose reversible crosslinking is used to realize the thixotropic property, the polyacrylamide is used to enhance the water-dispersing resistance, and the thixotropy adjusting agent is used to balance the dispersion and flocculation, so that the mud material simultaneously has excellent water-dispersing resistance and reversible thixotropy in a high-water-pressure water-rich stratum.

The utility model discloses a dish-shaped heating plate which comprises an upper plate body and a buckle type lower plate body which are integrally formed. A boss wave surface and an annular groove are arranged at the bottom of the upper tray body, and double groups of Cr20Ni80 heating wires are arranged in the upper tray body; the lower disc body is provided with a spring adjusting mechanism. Water seepage prevention is achieved through an integrated structure, uniform heating is achieved through double sets of heating wires, deformation resistance is achieved through buckling design, and efficient and stable heating is achieved. The electric cooker has the advantages of being high in heat efficiency, long in service life and easy to clean.

The application relates to airtight powder container, comprising an outer cover, an inner cover, an inner sieve and a base, the inner sieve is airtightly installed at the opening end of the base and is located between the inner cover and the base, the inner cover and the inner sieve are hinged through a hinge unit, the hinge unit is elastic so that the inner cover can move towards the inner sieve side when being forced, when the outer cover is covered on the base, the outer cover extrudes the inner cover so that the inner cover is tightly combined with the inner sieve. In the application, the inner cover and the inner sieve are hinged with each other, the inner cover and the inner sieve can be tightly combined together under the extrusion force of the outer cover, the airtightness of the inner sieve is guaranteed, and the volatile solvent in the cosmetic material in the base is effectively prevented from being volatilized.

The discharge adapter comprises a gun body, a gun head unit is arranged at one end of the gun body, a socket unit is arranged at the other end of the gun body, the socket unit comprises a panel, a plug bush and a pressing plate, a mounting groove is formed in the back face of the panel, and a limiting block is arranged in the mounting groove; the pressing plate is fixed at the notch of the mounting groove, the plug bush is clamped between the limiting block and the pressing plate, and the plug bush is connected with the pin through a wire; a first sealing layer is arranged between the pressing plate and the plug bush, and a second sealing layer is arranged on the side, away from the first sealing layer, of the pressing plate. The plug bush is clamped between the limiting block and the pressing plate, so that the plug bush is quickly positioned and fixed, the assembly process of the socket unit is obviously simplified, and the production efficiency is improved; and rainwater or moisture can be effectively prevented from permeating through a double-sealing structure, the potential safety hazard of electrical short circuit in a humid environment is solved, and the reliability and the safety of the product in outdoor use are greatly improved.