611results about How to "Closely arranged" patented technology

The invention relates to the technical field of chain-type combined tool magazines, in particular to a row-type chain-type combined tool magazine and a tool changing method thereof.The row-type chain-type combined tool magazine comprises a translation mechanism for supporting and driving a tool changing arm mechanism to reciprocate for tool changing and a plurality of chain-type tool magazines arranged on a sliding track where the translation mechanism is located; the multiple chain type tool magazines are arranged in a row in the direction away from the main shaft and are arranged on the same side of the translation mechanism in the sliding direction with the main shaft. The axes of a plurality of tools of the chain type tool magazine are located in the same plane, and a vacant tool position is reserved on a chain of the chain type tool magazine. And the translation mechanism drives the tool changing arm mechanism to sequentially pass through the empty tool positions on the multiple chain type tool magazines to take tools from the selected chain type tool magazines. The axes of tools in the chain type tool magazines are located in the same plane, the tool changing space needed between the adjacent tool magazines is reduced, the occupied area of equipment is reduced, the moving times and distance of a tool changing arm in the tool changing process are reduced due to the empty tool position, the tool changing path is simplified, and the tool changing speed is increased.

The invention belongs to the field of plug seedling transplanting facilities, and particularly relates to a whole-row taking, conveying and transplanting device suitable for different seedling trays, which comprises a transplanting mechanism, a seedling cup conveying mechanism and a plug tray conveying mechanism, the hole tray conveying mechanism is obliquely arranged; the transplanting mechanism comprises a transplanting main body, the transplanting main body comprises a supporting plate, and the supporting plate is supported on the movable cross beam through an angle adjusting assembly; the transplanting main body comprises a plurality of seedling taking parts, and each seedling taking part is mounted at the end part of the corresponding seedling taking support rod; the transplanting main body further comprises an equal-distance adjusting part, and the equal-distance adjusting part is arranged in the moving plate and used for synchronously adjusting the distance between the seedling taking parts. The plug tray conveying belt is in an inclined state, so that the seedling raising trays are tightly arranged, and the seedling raising trays can be integrally taken and conveyed by the transplanting main body; when the whole row of seedling raising plates with other sizes need to be transplanted, the distance between the seedling taking parts can be adjusted at any time by utilizing the equidistant adjusting part, and unnecessary shutdown parameter adjusting actions are reduced.

The invention belongs to the field of preparation of non-isocyanate polyurethane, and particularly relates to a preparation method of an extreme-environment-resistant non-isocyanate polyurethane adhesive, which comprises the following steps: preparing a cyclic carbonate monomer containing a rigid structure, selecting the type of di / polyamine, and adjusting the ratio of a flexible chain segment amine compound to a rigid amine compound, thereby obtaining the extreme-environment-resistant non-isocyanate polyurethane adhesive. A series of non-isocyanate polyurethane adhesives with excellent mechanical properties are prepared, and controllability of bonding strength and extreme environment resistance is realized. The adhesive disclosed by the invention is simple in synthesis method, reaction conditions are easy to control, and the lap joint shear strength of bonded Al can reach 16.7 MPa; the lap joint shear strength at the low temperature of-196 DEG C reaches 15.6 MPa; and the overlapping shear strength at the high temperature of 190 DEG C reaches 15.2 MPa. After a bonded sample is soaked in a solvent for 24 h, the lap shear strength can still be maintained at 15.4 MPa or above and can reach 16.5 MPa, and the adhesive can be widely applied to the fields of aerospace, medical instruments, chemical product packaging and the like and has good market prospects.

The invention belongs to the technical field of low-temperature co-fired ceramics, and particularly relates to a high-density and high-strength LTCC (Low Temperature Co-fired Ceramic) raw ceramic chip as well as a preparation method and application thereof. The preparation method comprises the steps that stacking phase powder and filling phase powder in raw materials are fully mixed and then subjected to tape casting, the equivalent particle size ratio of the stacking phase powder to the filling phase powder is 1: (0.4-0.8), and the volume ratio of the stacking phase powder to the filling phase powder is 1: (0.15-0.45). The high-density and high-strength LTCC raw ceramic chip is used for preparing a low-temperature co-fired ceramic substrate. According to the technical scheme provided by the invention, the raw ceramic chip raw materials can be tightly arranged after being fully mixed through the inorganic powder with different particle sizes and matching the dosage ratio of the inorganic powder to the raw ceramic chip raw materials, and low porosity in the sintered substrate is realized on the basis of not changing the substrate raw material composition or crystal whiskers; and therefore, the bending strength is improved, and other properties are not influenced.

The invention discloses a mining cable automatic moving, dismounting and mounting device which is characterized by comprising a chassis assembly, the distance between two longitudinal bottom beams of the chassis assembly is adjustable, and the chassis assembly is used for bearing all mechanisms of the device and achieving walking; the lifting mechanism is arranged on the two longitudinal bottom beams of the chassis assembly and used for supporting a cable drum to be operated; the rotation driving mechanism is hinged to the chassis assembly, abuts against the outer edge of an end disc at one end of the cable drum and is used for driving the cable drum to rotate, and the cable winding and unwinding function is achieved; the cable arrangement mechanism is arranged on the two fixed stand columns of the chassis assembly and used for guiding the cable when the cable is taken up and paid off; and the cable conveying mechanism is arranged on the sliding frame of the cable arranging mechanism and is used for enabling the cable to keep a certain tension force and transmission force. The device can realize automatic carrying, dismounting, mounting and cable reversing operation of the cable, improves the working efficiency, and reduces the labor intensity of workers.

The present invention discloses a high-drying high-pressure belt-type sludge dewatering machine, comprising a flocculation tank, a concentrated primary filter belt device, a skeleton agent automatic feeding device, a modifier feeding device, a mixing device, a mud homogenizing device, and a high-pressure filter belt device; the mixing device comprises a mixing bin, a mixing and stirring mechanism and a modifier spraying assembly arranged in the mixing bin, the sludge sent out of the outlet of the sludge primary filter belt assembly is fed into the sludge input port through a sludge input pipe, and the skeleton agent automatic feeding device inputs the skeleton agent into the mixing bin through the sludge input port. The sludge dewatering machine of the present invention greatly reduces the moisture content of the sludge output, and can achieve full-automatic continuous operation, integrating all the processing processes into one device, greatly reducing the occupied space, and simplifying the operation process.

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and is used for optimizing the layout design of a pixel circuit. The display panel comprises a substrate and a pixel circuit located on one side of the substrate. The pixel circuit comprises a driving transistor, and an active layer of the driving transistor is located on an oxide semiconductor layer; a first electrode of the data write-in transistor is electrically connected with the data line, and a second electrode of the data write-in transistor is electrically connected with a first electrode of the driving transistor through a first connecting line; the first connecting line is located at one side of the oxide semiconductor layer away from the substrate.

The invention relates to the technical field of metal and fiber reinforced plastic dissimilar material connection, in particular to a dissimilar material high-quality lap welding method based on laser surface treatment, which comprises the following steps: S1, carrying out laser surface treatment on a to-be-welded area of a metal plate, etching a target microstructure in the to-be-welded area, and introducing a new polar functional group; and S2, the treated metal plate and the fiber reinforced composite plate which is not treated are subjected to friction stir lap welding. The method has the advantages that the microstructures are more compact in arrangement, the utilization rate of the area of a to-be-welded area is increased, the connecting area between dissimilar materials is further increased, the microstructures are more layered in space, the welding internal stress of the to-be-welded area can be effectively reduced, stress distribution is more uniform, and the welding quality is improved. And the strength and the fatigue performance of a welding joint are greatly improved.

The invention relates to an optical system which comprises a light path transmitting subsystem, a scanning reflector (6) and an image receiving and processing subsystem. The light path emission subsystem comprises an illumination module (1), a light modulation module (4) and a curved prism (21). The curved surface prism comprises a light incident surface (21A), a reflection-transmission composite interface (21B) and a curved surface (21C) plated with a reflecting film, and is used for changing the direction of a light path and focusing the light path, so that the light path enters from the light incident surface, is reflected by the reflection-transmission composite interface, is reflected by the curved surface and is focused; and then the light is emitted from the reflection-transmission composite interface and enters the light modulation module at a specific angle. The invention also relates to an oral digital impression instrument equipped with the optical system. According to the optical system, the curved prism is used for replacing a traditional lens and reflector combination, the space size of the oral cavity digital impression instrument is remarkably reduced, and the requirements for miniaturization and portability are met.

The invention provides an electric connector, a circuit board assembly and electronic equipment. The electric connector comprises an insulating shell and a terminal, the terminal is fixedly connected to the insulating shell, a plug-in space is arranged in the insulating shell, an opening is formed in the bottom surface of the insulating shell, the plug-in space is communicated with the outside of the insulating shell through the opening, and the bottom surface of the insulating shell faces the circuit board. At least part of the first electric connection end of the terminal is located in the insertion space and used for being electrically connected with the signal transmission structure, the second electric connection end of the terminal extends out of the bottom face of the insulation shell and used for being electrically connected with a circuit board, and when the electric connector is used for being electrically connected with the signal transmission structure, the signal transmission structure enters the insertion space through the opening; and a first electrical connection end of the connection terminal. Therefore, one side of the bottom surface of the electric connector is electrically connected with the signal transmission structure and the circuit board, and the signal transmission structure is fixed through the cooperation of the circuit board and the peripheral structure, so that a pressing structure is omitted, and the electric connector is effectively reduced.

The present invention is a common optical path compound eye optical system based on hexagonal annular arrangement, which solves the problems of small sub-aperture, low space utilization, narrow imaging spectrum range, insufficient integration of multi-band system, and inconsistent information collection in existing bionic compound eye optical systems. The system includes a curved multi-aperture array, an optical relay image receiving system, and an infrared two-color detector arranged in sequence; the curved multi-aperture array adopts a hexagonal annular arrangement, and the optical parameters of each sub-aperture unit are the same; the optical relay image receiving system is used to convert the focal curved surface image information obtained by the curved multi-aperture array into focal plane image information, which is then received by the plane detector; the infrared two-color detector is used to receive the dual-band image information collected by the sub-aperture units at different spatial positions; wherein the sub-aperture optical system and the relay image receiving system both adopt a dual-band common optical path imaging structure.

The invention relates to the technical field of cables, in particular to an airtight cold-resistant low-smoke flame-retardant instrument cable used in an explosive environment, which comprises a protective sleeve, a cable body mechanism is arranged in the protective sleeve, the cable body mechanism comprises inner sheaths, and a plurality of inner sheaths are uniformly mounted in the protective sleeve at equal intervals. According to the invention, heat dissipated in the use process of the cable can be utilized to preheat the main body structure of the cable, so that the cold resistance of the cable is improved while internal heat dissipation is promoted; according to the invention, the structure of the cable is improved, the connection stability among the structures of the cable can be improved, the air tightness of the cable is effectively improved, the throttling effect of the heat insulation shell and the guide ring can be fully utilized, the flame retardance of the cable is improved, the cable can be better matched with the external environment, and the application range of the cable can be effectively expanded while the working stability of the cable is improved.

The invention discloses high-density ultra-thin electronic-grade glass fiber cloth, and relates to the technical field of glass fiber cloth preparation, the high-density ultra-thin electronic-grade glass fiber cloth is formed by weaving warp yarns and weft yarns with the monofilament diameter of 4.0 microns, the warp and weft density is 90-100 pieces / inch, an air jet loom is combined with an auxiliary air jet mechanism for plain weaving, and it is guaranteed that fibers are tightly arranged; the preparation method comprises the steps of low-speed warping, weaving, desizing, deep splitting, cleaning and surface treatment. During weaving, through low-tension control and low-pressure airflow assistance, the fabric structure is more compact and uniform; a three-step method is adopted to gradually eliminate most slurry, and the slurry is further removed through liquefaction desizing; splitting and cleaning adopt a water flow and air flow combined mode, so that fiber opening is ensured, and the slurry residue rate is reduced to the minimum; finally, the strength of the high-density ultrathin electronic-grade glass fiber cloth is improved through treatment of a silane coupling agent; and low-tension and extremely low-slurry-residue-rate weaving of the high-density ultrathin electronic-grade glass fiber cloth is realized.

The invention provides an intelligent cutting mechanism for harvesting pasture in a mountainous region, and belongs to the technical field of pasture harvesters. Comprising a vehicle body, crawler wheels are installed at the bottom of the vehicle body, a cooling box is installed at the top of the vehicle body, a control center is installed on one side of the vehicle body, an operation cavity is formed in the inner wall of the vehicle body, a motor is arranged at the top of the operation cavity, and a driving shaft is installed at the top of the inner wall of the vehicle body; and the gathering adjusting assembly is mounted at the bottom of the front end of the vehicle body. By arranging the gathering adjusting assembly and the clamping adjusting assembly, pasture is gathered after being divided, entanglement and accumulation of the pasture are avoided, meanwhile, the pasture is gathered again after being clamped, so that the pasture is tightly arranged, the pasture is more concentrated and efficient during blade cutting, the conditions of missing cutting and repeated cutting are avoided, the quality of the pasture is guaranteed, and the pasture cutting efficiency is improved. Due to gathering discharging of the device, the time for workers to gather and collect pasture is shortened, and the working efficiency is improved.

The invention discloses a manufacturing process of an easy-to-clean antibacterial ceramic product, and belongs to the technical field of ceramic product production. The preparation process comprises the following steps: mixing potassium feldspar, quartz, calcite, wollastonite and frit, grinding, sieving, adding deionized water I, carrying out wet ball milling by using flint cobblestones to prepare premixed glaze slip, sanding to prepare glaze slip I, uniformly spraying the glaze slip I on a ceramic green body, and drying in a drying kiln to form a substrate glaze surface; mixing modified halloysite and deionized water II, carrying out wet ball milling and sanding by using the flint cobblestones to prepare glaze slip II, uniformly spraying the glaze slip II on the glaze surface of the substrate, standing, feeding into a tunnel kiln, and carrying out primary firing to obtain the easy-to-clean antibacterial ceramic product. The glaze surface is smoother and more compact, the easy-cleaning performance of the glaze surface is improved, the antibacterial agent is firmly attached to the glaze surface, the antibacterial durability is enhanced, and the antibacterial performance is improved.

The invention relates to a high-precision and fast-response ultrahigh pressure adjusting method based on a real-time feedback control principle, and belongs to the technical field of ceramic manufacturing. The high-precision and fast-response ultrahigh pressure adjusting method based on the real-time feedback control principle comprises the steps that after a pressure adjusting device is started, a target pressure value is set; a high-precision pressure sensor is used for monitoring the pressure value in the forming process in real time; acquiring data of the pressure sensor in real time through a data acquisition system, and performing filtering and correction processing; the controller calculates the deviation between the current pressure and the set pressure according to the set pressure value and the pressure value collected in real time; by means of the real-time feedback control technology, high-precision adjustment of pressure is achieved, it is ensured that ceramic powder is subjected to uniform pressure in all directions, particles are tightly arranged, the forming density is improved, meanwhile, due to the fact that the pressure is applied in the same direction, the powder particles are subjected to the same compression force in all directions, and it is ensured that ceramic blanks are uniform in density and regular in shape.

The invention relates to the technical field of filtering equipment, in particular to a composite filter element assembly for a drinking water filter, which is characterized by comprising a shell and a shell cover, one end of the shell is sealed, the other end of the shell is open, and the shell cover is mounted on the opening of the shell; the shell is composed of an outer cylinder and an inner cylinder located on the inner side of the outer cylinder, a plurality of flow guide plates are arranged between the outer cylinder and the inner cylinder, the flow guide plates are annularly distributed around the axis of the shell, and one of every two adjacent flow guide plates is installed on the outer cylinder; the space between the outer cylinder and the inner cylinder is separated by adopting the multiple flow guide plates, and water flow is guided, so that the water flow flows in an S shape and penetrates through each filtering unit, multi-stage water purification work of the multiple filtering units is achieved, the multiple filtering units are annularly arranged in the shell, and the filtering efficiency is improved. A plurality of filter units can be conveniently arranged more tightly, and the volume is reduced, so that the volume and the occupied space of the filter element are reduced, and the use and the installation are convenient.

The invention relates to an integrated heat exchange device which comprises a plurality of heat exchange parts which are arranged in a stacked mode in the thickness direction of the integrated heat exchange device and connected, and each heat exchange part comprises fins, a liquid inlet collecting pipe, a flow dividing pipe and a liquid outlet collecting pipe which are sequentially arranged in the length direction of the integrated heat exchange device and communicate with one another; the multiple flow dividing pipes are sequentially arranged in the width direction of the heat exchange parts, the adjacent flow dividing pipes are arranged at intervals to form heat exchange gaps, the fins are arranged in the heat exchange gaps and connected to the adjacent flow dividing pipes correspondingly, and the heat exchange gaps of the adjacent heat exchange parts are correspondingly arranged and communicate with one another. And external airflow can sequentially penetrate through the heat exchange gaps of the adjacent heat exchange parts in the thickness direction of the heat exchange parts. According to the integrated heat exchange device provided by the invention, the problems that the assembly procedure is complicated and the occupied space is relatively large due to the fact that a plurality of different radiators need to be adopted for heat dissipation of various different media in the prior art are solved.

The invention relates to the technical field of eutectic equipment, in particular to an elastic suction nozzle assembly, eutectic equipment and an eutectic method. The elastic suction nozzle assembly comprises a base, at least two suction nozzles arranged on the base and elastic assemblies arranged corresponding to the suction nozzles. The suction nozzle comprises a connecting section and a working section which are connected; two ends of the elastic component are connected with the base and the connecting section of the corresponding suction nozzle; the base is provided with a through avoiding channel, the working section is movably located in the avoiding channel, and the working section penetrates through the avoiding channel from one side of the base and is exposed out of the other side of the base. The working section is provided with a vacuum air path and a perspective window arranged corresponding to the vacuum air path; external light can pass through the perspective window and the vacuum air path in sequence and then penetrate out of the adsorption opening of the suction nozzle. According to the scheme, multiple chips can be mounted and elastically abutted at the same time, the positions of the chips are allowed to be obtained in the mounting process, so that the chips are adjusted in real time, and efficient mounting and real-time calibration capacity of the multiple chips are achieved.

The utility model discloses a multifunctional tea bar machine which comprises a machine shell, a compressor and a condenser, the compressor and the condenser are arranged in the machine shell, an ice making assembly is further arranged in the machine shell, the ice making assembly comprises a water tank, an ice basket arranged in the water tank, a water collecting tank and an ice making evaporator arranged corresponding to the water collecting tank, the water collecting tank is communicated with the water tank, and the water collecting tank is arranged above the ice basket; a first evaporator is arranged in the cold container; the refrigerating box is provided with a second evaporator; wherein the compressor and the condenser are respectively connected with the ice-making evaporator, the first evaporator and the second evaporator, so that the ice-making assembly is used for making ice, the cold container is used for refrigerating water, and the refrigerating box is used for refrigerating. According to the tea bar machine, ice making, water refrigerating and cold storage are integrated, a user only needs to purchase one machine, multiple functions can be achieved, and the purchase burden of the user can be reduced; refrigeration is achieved through the same compressor and the same condenser, the utilization rate of the refrigeration module can be increased, the number of parts is reduced, and compactness and miniaturization of the whole machine are facilitated.

The invention discloses a display panel and a display device, relates to the technical field of display, and can improve the sawtooth feeling of a display picture of a special-shaped display boundary. The display panel includes: a substrate layer; a pixel unit is arranged on one side of the substrate layer, the pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, and one pixel unit corresponds to one virtual rectangle; the area proportion of the light-emitting layer in the virtual rectangle is greater than or equal to 80%; connecting lines of geometric centers of all pixel openings in one pixel unit form a virtual triangle, an included angle between a connecting line of geometric centers of pixel openings of the first sub-pixel and the third sub-pixel and a long side of the virtual rectangle is a first included angle, and the first included angle is the smallest included angle between each side of the virtual triangle and the long side of the virtual rectangle; the second overlapping area and the third overlapping area are smaller than or equal to the first overlapping area; a shape of at least one of the pixel openings of the first sub-pixel, the second sub-pixel, and the third sub-pixel includes at least a partial curvilinear edge.

The invention provides a vehicle-mounted charger with a three-dimensional water cooling loop, a power assembly and an electric vehicle. The electrical assembly of the vehicle-mounted charger is used for charging and discharging a power battery of the electric vehicle. The shell of the vehicle-mounted charger comprises a cover plate and a containing groove. The cover plate is used for enclosing a containing groove in the first direction, and the containing groove is used for containing an electrical assembly of the vehicle-mounted charger. The three-dimensional water cooling loop of the vehicle-mounted charger comprises a first water cooling heat dissipation plate, a second water cooling heat dissipation plate, a shell water inlet flow channel and a shell water outlet flow channel. The first water-cooling heat dissipation plate and the second water-cooling heat dissipation plate are arranged in a stacked mode in the first direction. Electrical components of the vehicle-mounted charger are arranged between the first water-cooling heat dissipation plate and the second water-cooling heat dissipation plate. The first water-cooling heat dissipation plate and the second water-cooling heat dissipation plate are utilized to form double-sided heat dissipation on the electrical assembly, and the cooling effect on the vehicle-mounted charger can be enhanced.

The liquid cooling server comprises a cabinet body, a plurality of mounting racks are arranged in the cabinet body, the mounting racks are used for fixing server mainboards, and liquid pipelines are arranged on the outer walls of the mounting racks; the liquid cooling channel comprises a first liquid cooling channel and a second liquid cooling channel, the first liquid cooling channel and the second liquid cooling channel are communicated through a plurality of vertical connecting pipelines, and a vertical track is arranged on one side, far away from the mounting frame, of the liquid cooling channel, so that the first liquid cooling channel and the second liquid cooling channel can slide up and down along the vertical track; the communication pipe is connected with the two opposite sides of the first liquid cooling channel, a containing groove for containing the communication pipe is formed in the side edge of the first liquid cooling channel, the communication pipe can slide through a horizontal rail arranged on the first liquid cooling channel and can slide to the containing groove, and a connecting opening corresponding to the liquid pipeline is formed in the communication pipe. According to the invention, the heat dissipation problem of the high-power-density server can be effectively solved, and the space utilization rate, the maintenance convenience and the expansibility can be improved at the same time.

The invention relates to a double-station type anode carbon block cleaning system which comprises a conveying line, a bottom cleaning device, a large surface cleaning station and a small surface cleaning station are arranged on one side of the conveying line, a visual positioning device is arranged above the conveying line, and the bottom cleaning device comprises a bottom surface cleaning mechanism and a bottom edge cleaning mechanism; the bottom edge cleaning mechanism comprises a bottom edge inclined scraper arranged between two adjacent rollers; the large surface cleaning station comprises a large station clamping device and a large station robot, a large surface cleaning tool is installed at the output position of the large station robot, and the large surface cleaning tool comprises a plane scraping tool bit and an edge scraping tool bit; the small surface cleaning station comprises a small station clamping device and a small station robot, a small surface cleaning tool is installed on an output portion of the small station robot, and the small surface cleaning tool comprises a cleaning tool bit, a sweeping head and an air nozzle. Cleaning is complete, and the cleaning efficiency is high; full automation of cleaning is realized; the structure is compact, and the integrity is high.

The invention relates to the technical field of solar power generation, in particular to a storable solar power generation device, which comprises a hinged mounting frame and a support adjusting device, at least two solar power generation modules are arranged on the hinged mounting frame from top to bottom, and the support adjusting device comprises a lifting frame. According to the device, a first push rod and a second push rod can be effectively utilized to assist a solar cell panel in rotating to a position perpendicular to sunlight to improve the working efficiency, and meanwhile, a solar power generation module can be stored in a protection box through a lifting device in strong wind weather to reduce damage; therefore, extra space for maintenance does not need to be reserved during installation, a plurality of devices can be arranged in an array mode more densely, and sunlight is fully utilized. The problems that existing solar power generation equipment is large in occupied area, low in resistance to strong wind, low in power generation efficiency, inconvenient to install and the like are solved, and the protection performance and the power generation efficiency of the equipment can be effectively enhanced.

The frying and baking machine comprises an upper cover and the handle arranged on the upper cover, a horizontally-extending rail is arranged in the upper cover, the handle comprises a holding body and a sliding shaft connected to the end of the holding body, the sliding shaft is slidably arranged in the rail so that the handle can have a first position and a second position, and when the handle is located at the first position, the sliding shaft can slide relative to the holding body. When the handle is located at the first position, the holding body is contained in the containing notch of the upper cover, and when the handle is located at the second position, the holding body is located on the outer side of the containing notch, and a holding space is formed between the holding body and the upper cover. The push-pull type lifting handle is adopted, when the cover needs to be opened, the lifting handle is adjusted to the second position, at the moment, the hand of a user can stretch into the holding space to carry out cover opening operation by holding the holding main body, when the machine needs to be stored, the lifting handle can be adjusted to the first position, at the moment, the lifting handle is in a stored state, and structural parts of the whole machine can be arranged more compactly; the size of the upper baking tray assembly is reduced, and the storage space is saved.

The invention provides an electro-mechanical brake system and a vehicle. The electronic mechanical braking system comprises a caliper frame, a caliper and a braking motor. The caliper frame includes two fixing holes and two sliding pin receiving holes. The two fixing holes are used for allowing two fixing pieces to penetrate through, and the two fixing pieces are used for fixedly connecting the frame and the caliper frame. The two sliding pin containing holes are used for fixing the two sliding pins, the calipers are used for being arranged on the two sliding pins in a sleeving mode and used for fixing the brake motor, and the brake motor is used for driving at least the friction plate to slide in the axial direction of the two sliding pins. The two sliding pin containing holes are used for being symmetrically arranged in the radial direction of the wheel. The arrangement direction of the two fixing holes intersects with the arrangement direction of the two sliding pin containing holes. The electronic mechanical braking system can better adapt to the wheel side space of the vehicle on the premise that the braking effect is guaranteed.

The invention discloses a method for rapidly constructing a large-area superlattice single-layer film and a product and application of the large-area superlattice single-layer film, and belongs to the technical field of nanometers.The method comprises the steps that nanoparticles in a nanoparticle solution are subjected to functional modification through perfluorinated molecules, and a mixed solution containing n-hexane is prepared; the mixed solution is injected into a water or alcohol solvent system for self-assembly, water-bath heating is assisted in the self-assembly process, the water-bath heating condition is 40-85 DEG C, and after n-hexane is completely volatilized, a nano-particle superlattice single-layer film is prepared on a liquid-liquid interface; the method is simple and controllable in process, high in preparation speed and good in universality, and the prepared nanoparticle superlattice monolayer film is good in orderliness and has a macroscopic large area.

The invention provides a dopamine hybrid ligand ZIF-8 / gelatin composite aerogel and a preparation method and application thereof, and belongs to the field of composite aerogel and preparation thereof.The growth rate of ZIF-8 nanocrystals is accurately controlled through dopamine hybrid coordination metal ions, stable ZIF-8-DA hybrid crystals are formed, and the stability of the aerogel is improved. The crystal not only solves the problem that the traditional MOF material is easy to aggregate particles, but also retains abundant chemical functional groups; furthermore, the ZIF-8-DA and a gelatin matrix are compounded by adopting a multi-crosslinking strategy and a freeze-thaw treatment technology to obtain the composite aerogel with a unique three-dimensional porous microstructure, so that the mechanical strength and the structural stability of the composite aerogel are remarkably improved, and the composite aerogel shows better heat-insulating and flame-retardant properties; the composite aerogel material prepared by the scheme has excellent heat insulation and flame retardant properties, and is suitable for high-energy-consumption fields such as building energy conservation, industrial heat management and environmental flame retardance.