593results about How to "Orderly rows" patented technology

According to the yarn structure and the textile thereof, by changing the specification cross section of the yarn and arranging the air flow guide grooves, the fabric can be tightly arranged, more efficient sunscreen can be achieved, ventilation is not blocked, the uvioresistant master batch is added, the fabric of the textile can be arranged more orderly, the surface is smooth and fine, and the fabric is more comfortable to wear. The uvioresistant master batch can reflect or scatter ultraviolet rays to prevent ultraviolet radiation from harming a human body, the uvioresistant master batch comprises a yarn body with a flat section, an air guide groove is formed in the surface of the yarn body, and the uvioresistant master batch is arranged on the yarn body.

The track fastener storage device comprises an outer barrel support assembly and an inner barrel assembly which are concentrically arranged from outside to inside, and the inner barrel assembly is of a circular rotating array structure and is used for storing track fasteners to be scattered; the inner cylinder rotating mechanism is rotatably arranged between the outer cylinder bracket assembly and the inner cylinder assembly, can drive the inner cylinder assembly to rotate relative to the outer cylinder bracket assembly, and is used for rotating the track fastener to the position of the discharge port; the turnover mechanism is arranged at the side part of the outer cylinder bracket assembly and is used for providing power for the turnover of the outer cylinder bracket assembly and the inner cylinder assembly; and the discharging port opening and closing mechanism is arranged at the bottom of the inner cylinder assembly and used for controlling the rail fasteners to fall onto the material distributing device, and the discharging port is a feeding port at the same time. The technical problems that an existing material storage device is low in operation efficiency and small in storage capacity and cannot meet the continuous operation requirement can be solved.

The utility model relates to the technical field of feeding machines, and particularly discloses a novel centrifugal disc feeder which comprises a rack, an inner disc and an outer disc, the outer disc is provided with a containing space for containing external workpieces, the inner disc is arranged in the containing space, the rack is provided with a first driving mechanism and a second driving mechanism, the first driving mechanism is in driving connection with the inner disc, and the second driving mechanism is in driving connection with the outer disc. The inner disc is rotationally connected with the rack through the first driving mechanism, the second driving mechanism is in driving connection with the outer disc, and the outer disc is rotationally connected with the rack through the second driving mechanism; an output outer edge is arranged on the end edge of the outer disc; an external workpiece is placed on the inner disc, the first driving mechanism drives the inner disc to rotate, the workpiece moves to the output outer edge under the action of centrifugal force, and the second driving mechanism drives the outer disc to rotate and sends the workpiece out of the feeder. The inner disc rotates to drive workpieces on the inner disc to do centrifugal motion, the workpieces move to the output outer edge under the action of centrifugal force, noise generated in the feeding process is reduced, meanwhile, high-speed feeding is achieved, and efficiency is improved.

The invention relates to the technical field of the Internet of Things, in particular to an integrated parking space management system and method based on the Internet of Things. The system comprises an electronic parking space lock which is used for identifying vehicle license plate information of a vehicle owner and unlocking and locking the parking space lock after comparison according to input information; the parking space management all-in-one machine is used for storing vehicle information of a vehicle owner and controlling opening and closing of the electronic parking space lock; and the client is used for inputting the vehicle information of the vehicle owner into the parking space management all-in-one machine and remotely controlling the electronic parking space lock to be opened and closed. According to the technical scheme, in the equipment installation process, operation is easy and convenient, intelligent management can be effectively carried out on parking spaces, one-to-one independent equipment control and independent installation can be achieved, use is convenient, the trouble of getting on and off of an automobile owner is reduced, and a remote control key does not need to be kept all the time.

The invention discloses a 24-channel optical fiber ring winding method which is characterized by comprising the following steps: S100, according to the length requirements of 24 groups of channel optical fibers, completing the fiber distribution work of 24 groups of optical fibers, and marking channel numbers; s200, feeding the optical fibers from the first channel to the twenty-fourth channel into optical fiber ring winding equipment, sequentially completing winding of the optical fibers from the first channel to the twenty-fourth channel according to a quadrupole symmetrical winding method, and measuring and ensuring length values; the working requirements are as follows: (1) after the optical fiber ring in each channel is wound in the winding process, two tail fibers are discharged along the fiber outlets in the side surfaces of the framework; and (2) three fiber outlets are uniformly distributed on the side surface of the skeleton in the circumferential direction, and tail fibers of eight channel optical fibers are discharged from each fiber outlet. According to the invention, a brand new 24-channel optical fiber ring winding method is designed, so that the problem of non-uniform discharge of channels of 24-channel optical fiber ring products is solved.

The invention provides a light heat preservation partition wall connecting structure of a building aluminum plate curtain wall and an installation method, and relates to the technical field of curtain wall construction.The light heat preservation partition wall connecting structure of the building aluminum plate curtain wall comprises a first vertical supporting rod, a second vertical supporting rod, a first transverse supporting rod, a second transverse supporting rod, a heat preservation inner partition wall and an aluminum panel; the first vertical supporting rod is connected to a wall through the first transverse supporting rod, the second vertical supporting rod is connected to the wall through the second transverse supporting rod, the first vertical supporting rod is arranged on the side, away from the wall, of the second vertical supporting rod, and the aluminum panel is installed on the first vertical supporting rod through a first connecting structure. The heat preservation inner partition wall and the wall face are arranged in parallel in a spaced mode and perpendicularly connected to the first transverse supporting rod and / or the second transverse supporting rod through a second connecting structure. The connecting structure enables the aluminum panel and the thermal insulation inner partition wall to be connected more firmly, can effectively improve the construction quality of the inner partition wall of the building aluminum plate curtain wall project, and is firm in installation and remarkable in economic benefit.

The invention provides a full-biodegradable composite film and a preparation method thereof. The full composite membrane comprises an outer layer, a middle layer and an inner layer, wherein the outer layer comprises modified calcium carbonate, PLA, PBAT and an epoxy chain extender; the middle layer comprises modified montmorillonite, PLA (polylactic acid), PBAT (poly (butylene adipate-co-terephthalate)), PPC (polypropylene carbonate) and an epoxy chain extender; the inner layer comprises PLA (polylactic acid), PBAT (poly (butylene adipate-co-terephthalate)), an epoxy chain extender and an optional anti-blocking agent. The preparation method of the raw materials of the middle layer comprises the following steps: (i) dividing an epoxy chain extender used by the middle layer into an epoxy chain extender A and an epoxy chain extender B, and mixing PPC, modified montmorillonite and the epoxy chain extender A to prepare a first master batch of the middle layer; (ii) mixing PLA, PBAT and an epoxy chain extender B to prepare a middle-layer second master batch; and (iii) uniformly mixing the middle-layer first master batch and the middle-layer second master batch, extruding and granulating to obtain a middle-layer raw material. The full-biodegradable composite film prepared by the preparation method disclosed by the invention is good in uniformity and quality.

The invention discloses a novel single-rail extrusion welding process for a geomembrane. The process comprises the following steps: carrying out leveling treatment and drying treatment on the surface of a reservoir bottom; the geomembrane is cut into a proper size and laid on the surface of the reservoir bottom, and the lap joint area is kept in a flat state; the TPO geomembrane, the novel geomembrane and the HDPE geomembrane are sequentially lapped in a staggered joint mode and welded through a single-rail extrusion welding machine, so that intersection points formed among membrane blocks are in a T shape; testing the geomembrane, and marking and repairing the found defect part until the retest is qualified; the novel geomembrane comprises a base material layer and an anti-ultraviolet layer, the upper surface of the base material layer is coated with the anti-ultraviolet layer, and the thickness ratio of the base material layer to the anti-ultraviolet layer is 1: (0.1-0.5). The construction is convenient, the adopted novel geomembrane has the excellent deformation adaptive capacity of an elastic material and the weldability of a plastic material, and when the geomembrane is used for seepage control of a reservoir area, leakage damage to a reservoir bottom connecting part can be avoided.

The invention discloses a forestry cultivation and planting ditching device and a working method thereof, relates to the related field of forestry cultivation and planting, and aims to solve the problems that in the prior art, a ditching piece is large in ditching difficulty in hardened soil, the rhizome part of a plant can be wound on the ditching piece and move along with the ditching piece, the soil is pulled along with movement of the rhizome of the plant, and the ditching effect is poor. And the inside of the ditch is covered by soil again. The planting ditching assembly comprises a C-shaped limiting support, the lower end of the interior of the C-shaped limiting support is rotationally connected with a connecting rotary disc, first fixing discs are fixed to the two ends of the connecting rotary disc, and C-shaped connecting supports are annularly arrayed outside the two first fixing discs; partition plates are fixed in the C-shaped connecting support in an array mode, soil passing grooves are formed in the C-shaped connecting support through the partition plates, and soil cutting edges are arranged at the ends, in the rotating direction, of the partition plates. A ditching piece is arranged at the lower end of the upper longitudinal fixing plate along the lower end of the rear end of the planting ditching assembly.

The invention discloses a clothing manufacturing workshop conveying system, and belongs to the field of conveying. The invention discloses a conveying system for a clothing manufacturing workshop. The conveying system comprises a runway-shaped conveying frame and feeding discs rotationally connected to the two sides of the conveying frame. A plurality of sliding bodies are installed on the conveying frame in the circumferential direction in a sliding mode. Every two adjacent sliding bodies are connected together through a tension spring. The conveying system further comprises two feeding motors. One feeding motor drives one feeding disc to rotate; containing grooves used for driving the sliding body to move are evenly formed in the periphery of the feeding disc. According to the scheme, the number of the sliding bodies below the conveying frame can be changed through rotation of the two feeding discs, the sliding bodies are evenly distributed below the conveying frame under the action of the tension springs, and then the distance between the sliding bodies is adjusted so as to adapt to clothes of different models.

The invention discloses a production method and system for slitter edge removal, splitting, shaping, distance expansion and film covering of a flexible assembly battery piece, and the production method sequentially comprises a full-automatic slitter edge removal process, a primary splitting process, a secondary splitting process and a shaping, distance expansion and film covering process, so that a large-size battery piece is split into hundreds of small-size battery pieces. And shaping, distance expanding and film covering operations are completed, and finally arrangement and distance expanding production of the battery pieces are achieved. According to the invention, the key process of splitting the complete large-size battery piece can be realized, hundreds of battery pieces can be arranged in order at equal intervals through two-time distance expansion operation, and compared with a traditional manual piece arrangement mode, the production efficiency can be obviously improved by dozens of times, so that the automatic production of the flexible battery piece is realized. The production method has the remarkable advantages of improving the production efficiency, reducing the cost, improving the product quality, achieving the high automation degree and the like.

The utility model relates to the technical field of coil stock processing and production, in particular to a winding device with a deviation rectifying function, which comprises a rack, winding rollers are arranged on two oppositely arranged side walls of the rack, guide wheels are symmetrically arranged at four corners of the bottom of the rack, two bases are symmetrically arranged below the rack, and the two bases are arranged on the two sides of the rack. Two sliding rails parallel to the central axis of the winding roller are symmetrically arranged on each base, the rack is installed on the sliding rails of the bases through guide wheels and is in sliding fit with the bases, one side of the rack is fixedly connected with a connecting piece, the connecting piece is in threaded connection with a lead screw, the lead screw is fixedly connected with the driving end of a deviation rectifying motor, and the deviation rectifying motor is connected with the driving end of the winding roller. And the screw rod is parallel to the central axis of the winding roller. The problems that in the winding process of coil materials, the phenomenon that the coil materials deviate easily occurs, the quality of coil material products is reduced, material waste is increased, the production efficiency is reduced, and the risk of damage to equipment is high can be solved.

The temperature limiter feeding mechanism comprises a feeding unit and a distributing unit, the feeding unit comprises a vibration assembly and a guide rail assembly, the guide rail assembly is arranged between the vibration assembly and the distributing unit, and the vibration assembly drives temperature limiters to vibrate so as to achieve automatic arrangement feeding. The guide rail assembly adjusts the temperature limiters to be in a unified posture and conveys the temperature limiters to the material distributing unit, the material distributing unit separates the temperature limiters from the material supplying unit, and material distributing is achieved. The vibration assembly is arranged to drive the temperature limiters to move, automatic feeding is achieved, the temperature limiters are further limited and conveyed through the guide rail assembly, the temperature limiters are arranged in order, the material distribution unit takes the temperature limiters for material distribution, automatic feeding of the temperature limiters is achieved, manual temperature limiter taking operation is replaced, and therefore labor force is released, the labor intensity of workers is relieved, and the production efficiency is improved. The feeding efficiency is improved, the product competitiveness is improved, and the automation degree of a production line is improved.

The utility model discloses a material sorting machine comprising an intelligent scanning identification structure, which relates to the technical field of material sorting and comprises a material conveying support, a scanning identification machine is arranged in the middle of the upper end of the material conveying support, and two groups of first cylinders are arranged on one side of the upper end of the material conveying support. A second mounting frame is arranged at the upper ends of the two first air cylinders, a driving seat is arranged in the middle of the upper end of the second mounting frame, a rotating disc is arranged at the upper end of the driving seat, a steering arm is arranged on the side wall of the rotating disc, a sliding block is arranged in the middle of the steering arm, and a sliding groove is formed between the sliding block and the steering arm. A connecting rod is arranged at the lower end of the sliding block, a connecting plate is arranged at the lower end of the connecting rod, and clamping plates are arranged at the two ends of the connecting plate. According to the material sorting machine comprising the intelligent scanning and identifying structure, ore can be automatically scanned and identified, and sorting and discharging can be automatically carried out.

The invention discloses an alloy steel wire rope coiling and packing device and a packing method, and belongs to the technical field of steel wire rope packing devices.The alloy steel wire rope coiling and packing device comprises a main body module and a continuous coiling module, the main body module comprises a coiling frame, a discharging inclined frame is fixedly connected to the bottom of the inner wall of the coiling frame, and a long strip plate is fixedly connected to one side of the coiling frame; a wire arranging assembly is arranged between the two sides of the inner wall of the winding frame, the wire arranging assembly is close to the front end face of the winding frame, and through arrangement of the fixing assembly, the winding assembly, a first magnetic block, a limiting assembly, a boosting assembly, a transmission assembly and a driving assembly, when the device is used, switching of the winding assembly can be rapidly achieved, and the winding efficiency is improved. According to the device, the rolling assembly can be placed between the two limiting assemblies in advance, follow-up feeding is facilitated, and therefore the packaging efficiency is indirectly improved.

The invention relates to a Litz wire manufacturing method and a coil structure, a Litz wire is divided into an inner layer structure and an outer layer structure, the inside of the Litz wire is formed by twisting a plurality of mutually insulated wires, the outside of the Litz wire is covered by an insulating layer, the number of strands of the internally twisted wires is more than 2700, the diameter of a copper wire used for wire twisting is more than 0.2 mm, and the Litz wire is directly blanked and trimmed without winding and forming; according to the Litz wire, a pole-phase group is directly embedded in a stator iron core groove, and only two coil lead outgoing heads are arranged in the pole-phase group, so that welding among coils is reduced; and after the soft litz wire is embedded, the end part can be directly shaped, so that the soft litz wire can be orderly arranged in sequence.

The embodiment of the invention discloses a preparation method of a nuclear track membrane with orderly arranged nuclear micropores. The preparation method of the nuclear track membrane with orderly arranged nuclear micropores comprises the following steps: preparing a single-pore membrane; preparing a nuclear track membrane with two holes at a certain interval by utilizing a plurality of single-hole nuclear track membranes; a plurality of two-hole nuclear track membranes are used for preparing a four-hole nuclear track membrane which has a certain hole distance and is arranged in order, and so on, so that the required nuclear track membrane with nanoholes arranged in order is prepared. Nuclear micropores of a nuclear track membrane prepared by a traditional method are uncontrollable in number and disordered in distribution, and the nuclear track membrane plays an important role in multiple fields such as medicine, military industry and nuclear technology, such as production of semi-permeable membranes and wave-absorbing materials. No matter what membrane material is, the production quality of the nuclear track membrane can be improved by the method provided by the invention. A novel probe of a radiation detector can be manufactured by clamping a layer of nuclear track membrane made of an insulating material between two layers of nuclear track membranes made of conductive materials prepared by the method. Or conductive layers are plated on the two surfaces of a film made of an insulating material, and nuclear micropores which are arranged in order are punched on the film by using the method, so that the probe of the radiation detector of the same type can be manufactured. Nuclear track membranes with different pore diameters and pore taper angles are overlaid and arranged in a staggered manner, so that the range of the wavelength of electromagnetic waves absorbed by the wave-absorbing material is expanded.

The invention relates to the technical field of compounds, in particular to poly-L-lactic acid microspheres for injection and a preparation method of the poly-L-lactic acid microspheres. The microspheres prepared under the condition of high-speed shearing dispersion or mechanical stirring are uniform in particle size, narrow in particle size range and good in reproducibility. A polylactic acid raw material with proper molecular weight is screened, microspheres are manufactured through a membrane emulsification method, then the microspheres with the required particle size are screened through a screening mechanism, and the surfaces of the microspheres are smooth.

The invention relates to the technical field of nano materials, and discloses a preparation method of a horizontal guiding CsPbBr3 nanowire array. The preparation method comprises the following steps: S1, blade-coating a mixture containing polydimethylsiloxane on a channel array template, heating, curing and stripping to obtain a polydimethylsiloxane film with a channel array; s2, cleaning a substrate and performing hydrophobic modification to obtain a hydrophobic substrate; s3, a CsPbBr3 solution is taken, a surfactant is added, and a mixed solution is obtained; and S4, dropwise adding the mixed solution to the surface of a hydrophobic substrate, covering a polydimethylsiloxane film with a channel array, compacting, heating, and stripping to obtain the horizontal guiding CsPbBr3 nanowire array. The preparation method of the horizontally oriented CsPbBr3 nanowire array provided by the invention is simple in steps, short in time consumption and high in efficiency, and the obtained CsPbBr3 nanowire array is tidy in horizontal arrangement, good in continuity and high in crystallization quality.

The invention belongs to the technical field of toilet paper production, and particularly relates to environment-friendly fiber toilet paper production equipment and a method thereof.The environment-friendly fiber toilet paper production equipment comprises a rack, a raw material frame installed on the surface of one end of the rack and a tensioning guide frame installed on the surface of the rack; the compacting and rolling assembly comprises an outer cover fixedly installed on the surface of the rack. By means of the automatic feeding device, toilet paper rolls can be automatically wound and formed, the workload of manual arrangement and toilet paper winding is reduced, the automation degree of production is improved, roll cores can be rapidly and accurately supplied to the machining position, the time and steps needed by manual feeding are reduced, and therefore the overall production efficiency is remarkably improved, automatic feeding of the roll cores is achieved, and the production efficiency is improved. The adhesive in the adhesive storage box can be conveniently smeared on the surface of toilet paper through the tail end of the adhesive smearing pipe, follow-up rolling forming is facilitated, continuous production can be easily achieved, and therefore the overall production efficiency is greatly improved.

The utility model provides a semi-finished reinforcing steel bar placing frame which aims to solve the problems of storage and taking of semi-finished reinforcing steel bars. The placing frame comprises a supporting frame body, a stock bin and a material taking assembly. The stock bin is fixed to the supporting frame body and provided with a feeding port and a discharging port, and semi-finished reinforcing steel bars can be placed in the feeding cavity. The material taking assembly comprises a transmission shaft and a material taking gear, and the gear is fixedly arranged on the transmission shaft in a sleeving mode and extends into the discharging opening of the material bin. Through operation of the ratchet wheel assembly, the transmission shaft and the material taking gear can be driven to rotate, and therefore the steel bars are taken out of the discharging opening. The placing frame is simple in structure, low in cost and capable of ensuring that the steel bars are arranged in order and avoiding disorder and waste. And meanwhile, only one steel bar can be taken out each time, so that the working efficiency is improved. The overall stability is good, the bearing capacity is high, and steel bars with various diameters and lengths can be adapted. The use is convenient, safe and reliable, and the construction efficiency and quality can be greatly improved.

The invention discloses a preparation method and application of a porous GelMA microneedle for delivering AIE molecules based on HSF derived exosome. The preparation method comprises the following steps: S1, preparing TTMN molecules; s2, dispersing DPPC and Chol in chloroform, performing water bath evaporation at 50 DEG C to form a thin film, hydrating the thin film in PBS, incubating to enable DPPC and Chol to form a liposome structure again, and uniformly dispersing TTMN molecules in the liposome structure to obtain TL; s3, extracting an exosome from the HSF cells; s4, loading the TL into the exosome by utilizing an electroporation technology, so as to obtain TE; s5, preparing the GelMA; and S6, mixing the GelMA with the TE, so that the TE is uniformly dispersed in the GelMA to obtain a mixed solution, injecting the mixed solution into a microneedle mold, and irradiating with 405nm laser to obtain the porous GelMA microneedle. According to the invention, high-efficiency treatment of hypertrophic scars is realized, and the system has a remarkable drug delivery effect, an innovative photodynamic therapy, a high-efficiency scar tissue remodeling effect and good biological safety and stability, and has important clinical application value and market prospect.

The utility model relates to the technical field of municipal construction, in particular to a short pipe replacement split pipe head which comprises a split pipe head body, a spalling mechanism used for spalling an old pipeline is arranged on the outer side of the split pipe head body, a connecting pipe is fixed to the right side of the split pipe head body, and a replacement pipe is placed in the connecting pipe; a fixing mechanism used for fixing a new pipeline is arranged on the connecting pipe, the spalling mechanism comprises a base, a limiting piece, a plurality of spalling pieces and a plurality of dismounting pieces, and the base is fixed to the outer side of the split pipe head body. According to the short pipe replacement crack pipe head, through cooperation of the base, the connecting block can slide on the base, so that the spalling cutters can be arranged on the base in order, through cooperation of the limiting block, the connecting block can be prevented from being separated from the base, through cooperation of the pushing block, the connecting rod can be driven to move, and therefore the clamping block is driven to move; and a clamping block enters a second mounting groove, so that a connecting block is conveniently taken out from a limiting opening, and the spalling knife is conveniently replaced and mounted.

This utility model discloses an automatic arrangement device for wire drawing dies, including a support, a material box fixed to the top of the support, a hopper fixed to the top of the material box, a turntable inside the material box, a motor fixed to the support, and a drive end of the motor fixedly connected to the turntable. The curved surface of the hopper extends into the material box and forms a channel between it and the turntable for the die to pass through horizontally. The material box is also provided with a guide mechanism matching the channel. Compared with the prior art, the channel of this utility model only allows horizontal dies to pass through, thus ensuring that all dies passing through the channel are horizontal. Furthermore, the horizontal dies will enter the guide mechanism under the centrifugal force generated by the rotation of the turntable, thereby achieving uniform die posture. The final discharged dies are neatly arranged and have consistent postures, ready for direct connection to subsequent processes.

The utility model discloses an automatic high -efficient winding machine of rotor, including frame, the left and right sides of frame upper surface all are provided with movable seat, and the opposite surface of two movable seats all are installed with first motor, and the output of first motor is connected with winding head through the rotation of rotating shaft, still include: two the wire wheel of the upper and lower of winding head inside are equidistant through the rotation of axle and are connected, and the opposite surface of two winding heads all are fixedly connected with limit stop. This automatic high -efficient winding machine of rotor, adopts two winding heads and can simultaneously carry out winding to two slot positions or different winding of rotor iron core, can improve production efficiency, and can support complex winding process, and utilize the effect of clamping plate, link rod and return spring, can carry out clamping fixed to the axle end of rotor iron core, and through the relative movement of two limit stops rotor iron core and carry out limit fixed, thereby avoid the deviation of rotor iron core in the winding process, ensure winding accuracy.

The utility model relates to the technical field of power construction, and discloses a power installation cable fixing mechanism convenient to use, which comprises a plurality of lower shells and a plurality of upper shells, the lower shells and the upper shells are connected through rotating shafts, the lower shells are connected through embedding assemblies, the upper shells are connected through embedding assemblies, and the lower shells and the upper shells are connected through embedding assemblies. A clamping pad is fixedly connected to the bottom side of the inner wall of the lower shell, a clamping piece is arranged on the bottom side of the clamping pad, a two-way screw rod is rotationally connected to the interior of the upper shell, the clamping piece and the two-way screw rod are connected through a pushing assembly, and the front end of the two-way screw rod penetrates through the front side of the outer wall of the upper shell and is fixedly connected with a rotating piece. According to the cable clamping mechanism, cables of different specifications can be clamped, meanwhile, a tool is not needed to drive the clamping component to clamp the cables, the convenience of the mechanism is improved, the cables can be arranged in order at a certain interval, and the situation that multiple cables are entangled and knotted is avoided.

This utility model relates to a cutting blade, belonging to the technical field of ultrasonic probe manufacturing equipment. The cutting blade is disc-shaped and used for rotary cutting of an ultrasonic probe to form piezoelectric array elements. The cutting blade includes a blade body and multiple gradient layers disposed on the outer side of the blade body. The multiple gradient layers are connected sequentially along the radial direction of the blade body, and the thickness of each gradient layer gradually decreases radially outward. Adjacent gradient layers are connected in a stepped manner, and the outer edge of each gradient layer away from the rotation center axis of the cutting blade forms a cutting edge, so that the cutting blade has multiple annular cutting edges arranged at radial intervals. The array elements of the probe cut by this cutting blade are pyramid-shaped, with narrow ends and wide bottoms, which ensures that the formed ultrasonic probe piezoelectric array elements are uniform in size, neatly arranged, and have better stability; effectively improving the resolution and stability of probe imaging.

The invention discloses a trans-perovskite solar cell based on double boric acid group anchoring and a preparation method thereof. The solar cell comprises a substrate, an anode, a hole transport layer, a co-self-assembly molecular layer, a perovskite light absorption layer, an electron transport layer and a cathode which are stacked. The co-self-assembly molecular layer comprises a first self-assembly molecule and a second self-assembly molecule of an organic compound containing two boric acid anchoring groups and a conjugated skeleton; the conjugated skeleton has at least: an extended conjugated structure including an aryl group, a biaryl group, a plurality of aryl groups bridged by heteroatoms, a heteroaryl group, and a plurality of heteroaryl groups connected by chemical bonds; the regulating group comprises an atom or a group for providing lone pair electrons, or a substituent containing a halogen atom. According to the invention, collaborative optimization of the interface stability, the carrier extraction efficiency and the interface functionality is realized through the co-self-assembly molecular layer, and the photoelectric conversion performance and the stability of the solar cell are improved.

The utility model provides a relay convenient for wire arrangement, which relates to the technical field of relays and comprises a relay body, a butt joint seat is fixed on the front side of the relay body close to the edge of the bottom, an installation frame is fixed on the top of the butt joint seat, and a plurality of butt joint grooves are arranged on the front side of the installation frame at equal intervals. A plurality of butt joint grooves are formed in the relay body, pressing pieces are arranged in the butt joint grooves, a plurality of wire groove openings are formed in the bottom of the relay body at equal intervals, the wire groove openings are correspondingly located below the butt joint grooves, and an insulation protection cover is arranged on the front side of the relay body. According to the utility model, one end of the wire is bent downwards, the wire is clamped in the wire notch, and finally the other end of the wire extends from the bottom of the relay body to the rear side of the relay body along the wire notch, so that each wire is arranged in order, and people can find and maintain the wire correctly.