811results about How to "Simple manufacturing process" patented technology

A buffering hardware hinge outside a cup comprises a hinge cup and a hinge arm, the hinge cup and the hinge arm are connected in a hinged mode through an upper connecting rod and a lower connecting rod, a guide groove penetrating through a body is formed in the bottom of the hinge cup, and a driving plate is installed at the outer bottom of the hinge cup in a covering mode; a sliding block is arranged on the top of the driving plate and installed in the guide groove in a sliding mode. The end, facing the hinge cup, of the upper connecting rod extends outwards to form a driving arm, and when the hinge is closed, the driving arm acts on the sliding block to push the sliding block to slide in the guide groove; a buffer is fixedly mounted at the outer bottom of the hinge arm, a piston rod or a cylinder body part of the buffer is connected with the driving plate, and the buffer has a damping effect on the movement of the driving plate, so that the damping effect when the hinge is closed is realized. The device has the beneficial effects that the buffer is installed outside the hinge arm, through the design of the guide groove and the driving plate, the external space is effectively utilized, and the problem that the internal space is limited is avoided.

The present invention provides a composition, particularly a composition for an organic electroluminescent device, the composition comprising a first compound having a structure represented by formula (I-1) or (I-2) and a second compound having a structure represented by formula (II). The composition is easy to prepare and good in thermal stability, meanwhile, the compound can adjust the stability of the material, and finally it is ensured that the photoelectric property of a device prepared from the compound is obviously improved. # imgabs0 #

The invention relates to a wide-temperature high-precision optical acceleration sensitive chip and sensor based on a microcavity interferometer principle and a manufacturing method thereof, the wide-temperature high-precision optical acceleration sensitive chip comprises a first substrate, a second substrate and a third substrate, an optical fiber mounting seat and a light through hole are formed on the first substrate, a beam structure and an inertial mass block are processed on the second substrate, and the beam structure is arranged on the third substrate. The first substrate, the second substrate and the third substrate are all made of double-polished super-flat silicon wafers, a single-mode optical fiber assembly is fixed to the optical fiber installation base, the end face of the single-mode optical fiber assembly is subjected to precise grinding and is perpendicular to the axial direction of an optical fiber core, and a first cavity mirror is formed by means of the end face of the side, facing the light through hole, of the inertial mass block. A second cavity mirror is formed on the end face of the single-mode optical fiber assembly, the first cavity mirror and the second cavity mirror form an F-P interference cavity, and the first substrate, the second substrate and the third substrate are connected through the silicon-silicon bonding technology.

The invention relates to the technical field of soil layer drilling, in particular to an efficient underground water quality detection sampling device which comprises a base, a fixing seat is further arranged on the base, and a device storage structure and a sample storage structure are arranged on the left side and the right side of the fixing seat respectively; a supporting structure is further arranged in the middle of the fixing base and comprises a vertical plate, a transverse plate, an axial motor, a mounting base, a lead screw, a guide rod and a drill rod. The drill rod is connected with the mounting seat through a rotating piece; the drill rod comprises a drill bit, a rod body, a sampling water pump and a sampling pipe; a sampling hole is further formed in the drill bit, and a liquid collecting cavity which is coaxially distributed is formed in the center in the rod body; a first cavity and a second cavity which are distributed from inside to outside are further formed in the rod body and located on the outer side of the liquid collecting cavity, and the sampling hole extends inwards, penetrates through the first cavity and the second cavity and is communicated with the liquid collecting cavity. The device is reasonable in structural design, filtering, collecting, sampling and storing operation of underground water at different heights can be completed on the basis that efficient drilling of underground water soil layers at different depth positions is achieved, and the using effect is good.

The invention discloses a water-based lithium battery positive electrode adhesive, a preparation method and application. The adhesive is of a single-layer or multi-layer shell core-shell structure formed by polar monomers such as acrylic acid, acrylate monomers, cross-linking monomers, self-emulsifying monomers and water through core-shell emulsion polymerization; by controlling the mass percent of acrylate monomers, polar groups and the like in the core layer structure and the shell layer structure and selecting proper types and dosages of cross-linking monomers and self-emulsifying monomers, the adhesive has proper surface tension, shows excellent adhesion and wettability to the current collector, has high peel strength, and is suitable for the current collector. According to the present invention, the lithium ion battery pole piece has the low glass-transition temperature so as to ensure the high toughness, the high surface density, the excellent electrolyte resistance, the excellent electrical property, the excellent coating property and the like of the pole piece, and the raw materials are all non-fluorine materials so as not to produce hydrogen fluoride and other harmful gases during the lithium battery recovery; water is used as a solvent, recycling is not needed, environment friendliness and low carbon are achieved, the manufacturing process is simplified, and the application range is widened.

The invention relates to the technical field of heterojunction solar cells, and particularly discloses a selective electrode contact heterojunction cell preparation method and a heterojunction cell, and the method comprises the steps: carrying out the first texturing of a silicon wafer substrate, carrying out the mask layer preparation of the textured silicon wafer, and carrying out the first patterning processing of the silicon wafer. Performing slotting treatment on two sides of the silicon wafer based on picosecond laser, performing secondary texturing on the silicon wafer, placing the cleaned silicon wafer in a second texturing mixed solution so as to generate a large textured pyramid structure on the inner bottom surface of a groove in the two sides of the silicon wafer, and removing the first mask layer from the silicon wafer after secondary texturing to obtain a second textured pyramid structure; sequentially depositing a plurality of layers including an intrinsic amorphous silicon layer and the like on the two surfaces of the silicon wafer, printing a second mask layer in a counterpoint manner in other areas of the silicon wafer which is provided with the groove in the first time of patterning based on exposure and development, electroplating a copper grid line on the silicon wafer, and sequentially removing the second mask layer and a copper seed layer on the silicon wafer after electroplating the grid line; the selective electrode contact copper grid line heterojunction solar cell is obtained, the problem of grid separation of the copper grid lines is solved, and the cell efficiency is improved.

The invention discloses a vacuum microcavity interferometer chip, a manufacturing method and a low-drift optical pressure sensor, a film island structure is formed on the upper surface of a first substrate, and the film island structure comprises a protruding part and a pressure sensitive film surrounding the protruding part; a first side wall part, a getter cavity, a second side wall part and an F-P interference cavity located in the center are sequentially arranged on the lower surface of the first substrate in the radial direction, a first reflecting surface is deposited on the lower surface of the first substrate in the F-P interference cavity, and a second reflecting surface is deposited on the upper surface of the second substrate in the F-P interference cavity. A first optical antireflection film is deposited on the surface of the protruding part, and the first optical antireflection film, the protruding part, the pressure sensitive film, the first reflecting surface and the second reflecting surface have the same center; the filter further comprises a vent hole, and the vent hole is formed in the second side wall part and used for communicating the getter cavity and the F-P interference cavity.

The invention discloses self-adaptive Janus supramolecular hydrogel, a preparation method and application of the self-adaptive Janus supramolecular hydrogel as a wet tissue surface adhesive. The hydrogel has an integrated structure and two asymmetric surfaces: an adhesion surface and an anti-adhesion surface. The method is suitable for the wet tissue surface bonding field.

The invention provides a power tube heat dissipation structure, a power supply device and a processing and assembling method.The heat dissipation structure comprises a PCB, a power tube attached to the PCB and a radiator corresponding to the heat dissipation face of the power tube, and one face, attached to the heat dissipation face of the power tube, of the radiator is provided with one or more cofferdam structures; a heat conduction interface material is arranged in an area defined by the cofferdam structure, and the heat dissipation face of the power tube is attached to the heat conduction interface material. The heat conduction insulating layer and the radiator are integrated, no extra insulating part needs to be installed, the manufacturing process is simplified, and the production efficiency is improved. And through the cofferdam structure arranged on the radiator, the heat conduction material is limited in the cofferdam, so that the problems of horizontal slippage, vertical flow and the like of the heat conduction material under the influence of temperature change and vibration factors are prevented, and the thermal reliability of the power supply device is improved.

The invention relates to a magnetic latching relay and an assembling method thereof. The magnetic latching relay comprises an armature assembly, the armature assembly comprises a shell and a permanent magnet arranged in the shell, the armature assembly further comprises a limiting structure, the limiting structure comprises a connecting part and a limiting part, the connecting part is connected to the shell, and the limiting part is connected to the end, away from the shell, of the connecting part; the auxiliary movable spring part is provided with a through hole, at least part of the connecting part is located in the through hole, and the limiting part is located on the side, opposite to the shell, of the auxiliary movable spring part so as to limit the auxiliary movable spring part on the shell. According to the magnetic latching relay, the assembly process of the auxiliary movable spring part is simplified, and the assembly difficulty and the preparation cost are reduced.

The invention relates to a microbial preparation containing arbuscular mycorrhizal fungi and application thereof, and belongs to the technical field of plant cultivation. According to the application disclosed by the invention, it is found that all of the glomus amarae, the rhizopus intro-rhizosporium, the glomus mosseae and the cyst macrosporium in the arbuscular mycorrhizal fungi can promote the growth of plants under the condition of double pollution of molybdenum and micro-plastics, and the plant height and the grain yield of the plants are effectively improved. Further experiments find that under the same condition, the effect is better than that of applying a single arbuscular mycorrhizal fungus inoculant when the near-phoma globosum, the rhizosporium intraradices and the glomus mosseae or the mixed inoculant of the near-phoma globosum, the glomus mosseae and the cyst macrosporium is applied. Furthermore, after beneficial bacteria and auxiliary materials are added into the mixed bacterial agent, the mixed bacterial agent has a better promoting effect on plant growth under the condition of double pollution of molybdenum and micro-plastics. The microbial preparation provided by the invention can reduce poison of microplastics and molybdenum to plants, so that the plants can normally grow under dual pollution.

The invention relates to multi-element rare earth silicate / silica carbon nano composite ceramic and a preparation method thereof. The composition general formula of the nano composite ceramic is (YbaHobErcLudTmeGdfTbgYhLaiScj) 2SixO2x + 3 / SiOC, a + b + c + d + e + f + g + h + i + j = 1, at least two of a, b, c, d, e, f, g, h, i and j are not 0 at the same time, and x = 1 or 2. The preparation method comprises the following steps: reacting a rare earth metal element complex with a silicon-based polymer to obtain a single-source precursor; the single-source precursor is obtained through cross-linking and high-temperature heat treatment, or the single-source precursor is subjected to cross-linking and pyrolysis to obtain ceramic powder, and the ceramic powder is further sintered at high temperature to obtain a ceramic block. The preparation method is simple, reliable, short in period and low in cost, and the water and oxygen corrosion resistance of the material can be effectively improved.

The invention relates to the technical field of thrust bearings, in particular to a preparation method of a tin-based babbitt metal bushing and the tin-based babbitt metal bushing. The preparation method of the tin-based babbitt metal bushing comprises the following steps that a transition layer containing tin is arranged on the surface of a thrust pad, plate-strip-shaped tin-based babbitt metal is arranged on the transition layer, pressure and ultrasonic waves are applied to the surface of the plate-strip-shaped tin-based babbitt metal, and welding is completed through ultrasonic pressure welding. According to the method, the tin-containing transition layer is arranged on the surface of the thrust pad, the thrust pad bushing is rapidly prepared through ultrasonic pressure welding, and element diffusion and hydrogen element escape among the bushing, the transition layer and the steel backing and atomic lattice distortion and electron movement between the babbitt metal bushing and the transition layer are promoted through the coupling effect of extrusion force and high-frequency vibration; the plate-strip-shaped tin-based babbitt metal is welded to the surface of the thrust pad to form the bushing, the prepared babbitt metal bushing coating is uniform and compact, the preparation technology is greatly simplified, and environment friendliness is achieved.

The invention provides a multi-junction surface-emitting laser and a light-emitting module. A first reflecting layer, an active region and a second reflecting layer are sequentially stacked on a substrate, the active region is composed of at least two PN junctions or P-I-N junctions, and the PN junctions or the P-I-N junctions are connected through tunnel junctions; wherein the material of the substrate is gallium arsenide or indium phosphide, the crystal face of the substrate is {n11} crystal face family, n is 0 or an integer greater than 1, and anisotropic gain can be obtained in the VCSEL by using the non-(001)-oriented substrate and the quantum well, so that polarization in a quantum well plane (active region) is controlled to obtain higher gain, a grating structure does not need to be additionally arranged, the preparation process is simplified, and the preparation cost is reduced.

The invention discloses a method for preparing a graded porous nickel electrode by step-by-step dealloying and application thereof, and the method comprises the following steps: spraying a nickel-aluminum material on a nickel-based substrate to obtain a first intermediate product; performing heat treatment on the first intermediate product to obtain a second intermediate product; the second intermediate product is sequentially placed in alkali liquor with different concentrations for step-by-step activation, and the graded porous nickel electrode is obtained; in the step of step-by-step activation, the concentration of the alkali liquor is gradually reduced, and the activation temperature is gradually reduced. According to the graded porous nickel electrode, the efficient mass transfer rate and catalytic efficiency are guaranteed; the bonding strength between the coating and the substrate is high, the interlayer structure is stable, the mechanical property and stability are good, and the service life is long; and the hierarchical porous structure can be constructed only through step-by-step activation, so that the preparation process is remarkably simplified.

The invention relates to a vacuum microcavity interferometer chip, a manufacturing method and a wide-range optical pressure sensor. Comprising a first substrate and a second substrate, the second substrate and the first substrate are bonded into a whole, a pressure sensitive film is manufactured on the first substrate, a first reflecting surface is deposited on the pressure sensitive film, and a second reflecting surface corresponding to the first reflecting surface is deposited on the second substrate. After the two substrates are bonded, the first reflecting surface and the second reflecting surface form an F-P optical interference cavity, at least one getter cavity is arranged on the first substrate and / or the second substrate, a getter film is arranged on the surface of the getter cavity, and the getter cavity and the F-P optical interference cavity are separated and connected through an air channel, so that the size of the air channel can be made to be very small, and the size of the getter cavity is smaller than that of the F-P optical interference cavity. A small amount of particles generated after the getter is activated are prevented from polluting an optical film to cause device failure; the whole sensor is of a sealed structure and is not provided with a structure externally connected with the chip, so that the overall airtightness of the chip is ensured, and the vacuum degree requirement of subsequent shell packaging is reduced.

The invention discloses a method for preparing a graphene copper rod by multi-pass continuous extrusion, which comprises the following steps of: mixing copper powder and graphene powder, and annealing with a copper pipe in inert gas; a continuous extrusion process is adopted, mixed powder of copper and graphene is added into a copper pipe, and the graphene copper rod is prepared through multi-pass continuous extrusion. According to the preparation method, process control and operation are convenient, the graphene copper mixed powder is loaded into the copper pipe for continuous extrusion, the preparation process of the graphene copper composite material is simplified, meanwhile, the copper pipe is beneficial to keeping the stable form of the copper powder in the extrusion process, and the complexity of process control is reduced.

A second-cycle discharge curve of the coal-based hard carbon negative electrode material satisfies 2.50 < = N < = 4.00, the specific surface area is selected from 5-200m < 2 > / g, N represents the capacity ratio of a plateau region to a slope region in the second-cycle discharge curve, the plateau region refers to the part with the voltage being less than 0.1 V in the discharge curve, and the slope region refers to the part with the voltage being greater than 0.1 V in the discharge curve. By controlling the capacities of a platform area and a slope area in a second-cycle discharge curve and controlling the specific surface area, the problem that the charge-discharge capacity and the first-cycle coulombic efficiency of a traditional coal-based material cannot be considered at the same time is solved, and the coal-based hard carbon negative electrode material with high first-cycle reversible capacity and first-cycle coulombic efficiency is obtained.

The invention discloses a long-life phosphorescent sulfur quantum dot, a multicolor long-life phosphorescent sulfur quantum dot composition and a preparation method and application thereof, and belongs to the technical field of phosphorescent materials and information encryption. The preparation method comprises the following steps: carrying out solvothermal reaction on a sulfur source and ethylenediamine to obtain sulfur quantum dots, and adding a sulfur quantum dot aqueous solution into a boric acid matrix to react to prepare long-life phosphorescent sulfur quantum dots (SQDs-MA); the long-life phosphorescent sulfur quantum dots and a rhodamine B aqueous solution are blended and dried to prepare the multicolor long-life phosphorescent sulfur quantum dot composition (RhB / SQDs-MA). When excited by ultraviolet light, the SQDs-MA shows a wide absorption range of 200 to 700 nm. When excitation is carried out at 362 nm, the SQDs-MA shows a blue fluorescence emission peak at 436 nm. The SQDs-MA powder emits bright green phosphorescence after the irradiation of an ultraviolet lamp is turned off, and under the optimal excitation of 373 nm, the maximum phosphorescence emission value is displayed at 526 nm. Under the irradiation of ultraviolet light, the RhB / SQDs-MA can emit yellow, orange and red phosphorescence at the wavelength of 584 nm, 600 nm and 620 nm.

The invention belongs to but not limited to the technical field of electrode materials, and particularly relates to a preparation method of a bamboo-based hard carbon sodium battery negative electrode material, which comprises the following specific steps: S1, cleaning and drying natural bamboo, scraping surface bamboo green with a knife, and cutting into small blocks; s2, a dilute acid solution is prepared, the bamboos are soaked in the dilute acid solution in a vacuum mode, then the bamboos and the dilute acid solution are transferred into a hydrothermal kettle together, a solvothermal acidolysis reaction is conducted under the high-temperature and high-pressure condition, ash removal and impurity removal are conducted, and meanwhile the bamboos are softened; s3, the bamboo wood subjected to solvothermal acidolysis is washed with water and dried, and a tubular furnace is used for pre-carbonization treatment; after pre-carbonization, a sample is subjected to ball milling, grinding and screening, then is transferred into a graphite mold, and is put into a discharge plasma sintering furnace for high-temperature sintering carbonization; and S4, carrying out ultrasonic oscillation on the carbon powder subjected to discharge plasma treatment, re-screening, and carrying out chemical vapor deposition carbon coating to obtain the bamboo-based hard carbon sodium battery negative electrode material.

The invention provides an endoscope robot control method and system, electronic equipment, a medium and a program product, and an endoscope robot comprises a first mechanical joint, a second mechanical joint, a third mechanical joint, a fourth mechanical joint, a first virtual joint and a second virtual joint. The endoscope robot control method comprises the following steps: determining a first translation distance, a first rotation angle, a second rotation angle, a third rotation angle, a second translation distance and a fourth rotation angle according to a target coordinate point of an endoscope robot; and controlling the position of the endoscope robot to be updated to the target coordinate point according to the first translation distance, the first rotation angle, the second rotation angle, the third rotation angle, the second translation distance and the fourth rotation angle. Operation can be observed from different angles by controlling the movement of the endoscope robot combining the mechanical joint and the virtual joint, the manufacturing process of the endoscope robot is simplified, and meanwhile the stability of the structure of the endoscope robot can be guaranteed under the condition that the degree of freedom is not sacrificed.

The invention provides a preparation method of a mineralized collagen scaffold material with a bionic structure, and belongs to the field of biomedical engineering.The preparation method comprises the steps that an amorphous calcium phosphate solution stabilized by polyacrylic acid is prepared, and the molar ratio of Ca to P in the amorphous calcium phosphate solution is 1.67: 1; preparing a collagen solution containing noradrenaline; carrying out isoelectric focusing treatment on the collagen solution under a constant voltage to form a dense membrane, and stretching the dense membrane to generate 120-200% deformation, so as to obtain a collagen membrane with a bionic structure; and soaking the collagen membrane in the amorphous calcium phosphate solution, and then performing freeze drying to obtain the noradrenaline-mineralized collagen scaffold material. The mineralized collagen scaffold material prepared by the method has excellent biocompatibility, osteogenesis inductivity and sufficient mechanical strength, can effectively promote bone tissue defect repair, and has a good application prospect in the field of bone tissue engineering. The invention further provides the mineralized collagen scaffold material with the bionic structure and application of the mineralized collagen scaffold material.

The embodiment of the invention provides a preparation method of a tungsten-copper alloy and the tungsten-copper alloy, and relates to the technical field of alloy preparation.The method comprises the steps that superfine tungsten oxide powder, tungsten salt, copper salt and a polymer additive are added into deionized water to be evenly mixed, and a precursor mixed solution is obtained; carrying out spray granulation on the precursor mixed solution by adopting a spray dryer to obtain spherical tungsten-copper precursor composite powder; roasting the spherical tungsten-copper precursor composite powder to obtain tungsten-copper oxide composite powder, and carrying out segmented reduction on the tungsten-copper oxide composite powder to obtain tungsten-copper composite powder with tungsten grains having a nanocrystalline / ultra-fine grain bimodal distribution characteristic; and the tungsten-copper composite powder is pressed to obtain an alloy blank, the alloy blank is sintered, and the tungsten-copper alloy is prepared. According to the double-peak distribution tungsten-copper composite powder, full densification of the alloy can be promoted through coupling rearrangement of large and small tungsten particles in the sintering process, and the compactness, the heat conductivity and the electric conductivity of the tungsten-copper alloy can be improved.

The invention discloses a mesophase pitch carbon matrix modified high-thermal-conductivity C / SiC composite material and a preparation method thereof, the material is subjected to high-thermal-conductivity matrix modification through mesophase pitch melt impregnation, in-situ mesophase inversion and in-situ carbonization, and mesophase pitch carbon fibers are combined as a reinforcement, so that the high-thermal-conductivity C / SiC composite material is obtained. The mesophase pitch carbon matrix modified high-thermal-conductivity C / SiC composite material is obtained by densifying a silicon carbide matrix by adopting a polycarbosilane melt impregnation and in-situ cracking process, has excellent mechanical and high-thermal-conductivity properties, can be widely applied to the front edge, the end head and other parts of a hypersonic aircraft, and can effectively improve the use temperature and the service environment of the material. Meanwhile, the preparation process is simple, the equipment use requirement is low, and the material preparation process period and cost can be correspondingly reduced.

The invention provides a razor head with a 360-degree follow-up razor net and a shaver, the razor head with the 360-degree follow-up razor net comprises a combined razor net, the combined razor net is formed by connecting and assembling three or more razor nets, each razor net can float or tilt after being stressed, and the razor net on the inner side can float or tilt after being stressed along with the razor net on the adjacent outer side. According to the shaver, the shaver nets can float independently, can also float in a linkage mode, can flexibly rotate in all directions, can be tightly attached to the facial contours including the cheeks, the jaw, the neck and other parts, can easily adapt to different facial contours without moving the shaver body in a large range during shaving, and effectively improves the attaching degree and comfort degree of shaving.

The invention relates to the technical field of pipeline cutting, in particular to intelligent cutting equipment for building heating and ventilation pipelines. Comprising a base, a cutting mechanism, a moving mechanism and an inner supporting mechanism; the cutting mechanism comprises a fixing frame, a hydraulic cylinder, a mounting seat, a cutting knife and a cutting motor; the moving mechanism is used for driving the fixing frame to move by a preset distance so as to complete cutting operation of building heating and ventilation pipelines with different lengths. The inner supporting mechanism comprises a supporting frame, a base plate, a connecting pipe, a rotating motor, a rotating shaft and an inner supporting piece. The rotary motor is arranged on the substrate, and an output shaft is connected with the rotary shaft; the inner supporting piece is used for conducting inner supporting and jacking operation on the building heating and ventilation pipeline, and the preset first inner supporting point and the preset second inner supporting point are symmetrically distributed and located on the two sides of the cutting knife. The device is reasonable in structural design and high in cost performance, the heating and ventilation pipeline is conveniently driven to rotate to complete cutting while stable and symmetrical inner supports are formed on the inner wall of the heating and ventilation pipeline, the problem of quality deviation caused by notch deformation is avoided, and the device is more practical.

The invention relates to a sheath tube and a sheath tube preparation method. The preparation method of the sheath tube comprises the steps of attaching the connecting layer to at least part of the tube wall of the tube body, enabling the connecting layer to wrap at least part of the tube wall, then attaching the hydrophilic layer to at least part of the tube wall attached with the connecting layer, and enabling the hydrophilic layer to wrap at least part of the connecting layer. Therefore, the sheath tube can be prepared by more easily combining the tube body with the hydrophilic layer through the connecting layer. Therefore, the structure of the sheathing canal is simplified, an ultra-thin polytetrafluoroethylene tube does not need to be sleeved inside and outside the canal body, the preparation process of the sheathing canal is simplified, and the manufacturing cost of the sheathing canal is saved. In addition, compared with a sheathing canal in the prior art, at least part of the inner wall and at least part of the outer wall of the sheathing canal are provided with the hydrophilic layers, the sheathing canal can reach a preset position more smoothly during an operation, and tissue of a patient is prevented from being damaged.

The invention relates to a vacuum microcavity interferometer chip, a manufacturing method and an ultra-high precision optical pressure sensor, the lower surface of a first substrate is etched to form a concave cavity, after the first substrate and a second substrate are bonded, the concave cavity forms an F-P interference cavity, and the F-P interference cavity forms an F-P cavity; a first reflecting surface is arranged on the surface of the first substrate in the F-P interference cavity, a second reflecting surface is arranged on the surface of the second substrate in the F-P interference cavity, an annular cavity is formed in the upper surface of the third substrate, and the getter film is deposited on at least one surface in the annular cavity. The second substrate is provided with at least one vent hole, and the vent hole is communicated with the F-P interference cavity and the annular cavity; the projections of the annular cavity and the F-P interference cavity on the horizontal plane at least partially coincide.

The invention discloses an intracavity endoscope cleaning and smoke discharging device which comprises an outer sleeve, a locking fixing base, a self-debugging sealing cap, a first cover body, a second cover body, an inner core pipe, a first choke valve and a second choke valve. The camera is replaced, placed in the device, penetrates through the inner core pipe and ejects the second choke valve at the bottom of the inner core pipe, at the moment, the second choke valve is opened, in the observation process, if the camera is polluted, the camera is pulled into the inner core pipe, at the moment, the second choke valve is closed, the camera is located in the second choke valve, and a water inlet and suction switch is turned on; water flows into the inner core tube from the inside of the outer sleeve, then the water outlet and inlet suction switch is turned on, the water flows are sucked out through large suction force, meanwhile, pollutants are brought out of the inner core tube, the purpose of cleaning the camera is achieved, operation is easy, the learning cost is extremely low, and the working efficiency of doctors is improved.

The invention provides a shaver head with a modular combined floating knife net and a shaver, the shaver head with the modular combined floating knife net comprises the modular combined knife net, the modular combined knife net is formed by connecting and assembling a plurality of mesh modules and a plurality of functional modules, each mesh module and each functional module can float or tilt under stress, and the modular combined knife net is arranged on the modular combined knife net. The mesh modules or function modules on the inner side can float or tilt along with the adjacent mesh modules or function modules on the outer side after being stressed, and each mesh module is provided with a movable cutter set. According to the modular design, mesh modules with different thicknesses and different groove types are formed, and functional modules with different functions can also be combined, such as an antibacterial module, a heating module, a cleaning module, a skin detection module and an odor module. Combination is carried out according to requirements, the requirements of different customers are met, the product development frequency and time can be reduced, the production efficiency is improved, and the cost is reduced.