66results about How to "Spread far" patented technology

The invention discloses a vortex ring generation device based on radial disturbance principle. The vortex ring generation device based on the radial disturbance principle comprises an air feed device,a radial disturbance device, a ventilating duct and two opening and closing plates, wherein the air feed device, the radial disturbance device and the two opening and closing devices are sequentiallyarranged in the ventilating duct along the air flow direction, the two opening and closing plates are transversely and symmetrically arranged in the ventilating duct, semi-circular holes symmetrically arranged are formed in the two opening and closing plates, and the radial disturbance device is connected with the two opening and closing plates, and drives the two opening and closing plates to open or close. The vortex ring generation device based on the radial disturbance principle achieves continuous air feeding, generates a plurality of vortex rings on a section of continuous airstream, connects the vortex rings through common air, greatly improves ventilation rate, and can meet the requirement for the minimum ventilation rate in the heat supply or refrigeration field.

The invention relates to the field of insect catching device, in particular to a novel trap. The trap comprises a canopy (2), a lure (3), a support frame (1), a tray (8), a tub of deinsectization (4) and a lifting poker (6). the lure of the trap utilizes a mutual combination way that connects the induced liquid and the trap lamp to attract insects, the main components of induced liquid are the host component of the insects, and both of them are Chinese drug compounds, the LED lamp utilizes a plurality of modulator tubes, and the tubes adopted as color which is divide into red, yellow and blue of three-primary colors, thus the different lights will be opened by different colors because the tubes are not in the same lamp shade. The purpose of effectively attracting the insects can be achieved by combining these two induction methods, at the same time, the surfactant solution and the medicine insecticide are utilized for deinsectization, thereby achieving the purpose of broad-spectrum insect, lure protection, safety and insects killing.

The invention discloses a method for dynamically transmitting power line carrier wave information and a processing module thereof for realizing the high speed and real time transmission of information with high success rate and strong communication ability. The invention utilizes the technical scheme that an information data frame to be transmitted is compressed and split into a string of data packets, and the period for transmitting each data packet on the power line is less than the interference period of alternating current on the power line; and coding transmission is carried out on the data packets through the mode of repeated and multiple transmission. The decoding processing, such as error correction, unpacking, combination, and the like, is carried out on the data packet at the information receiving end in order to restore data. The invention is mainly used for low voltage power line communication, such as automatic meter reading, street lamp monitoring, environment (safety) monitoring, and the like.

The invention relates to the technical field of ant insecticides, in particular to an ant repelling agent and a preparing method thereof. The ant repelling agent is mainly prepared from 16-17 parts ofcamphor tree leaves, 15-17 parts of walnut leaves, 16-18 parts of tobacco leaves, 13-15 parts of basil, 14-16 parts of coleus blumei, 10-15 parts of rhoeo discolor, 11-12 parts of common lantana leaves, 10-13 parts of canna indica, 10-11 parts of bitter buttons, 9-10 parts of herb of Grace, 8-10 parts of mint, 6-8 parts of clove, 3-4 parts of cinnamon, 5-7 parts of black pepper, 5-7 parts of eggshell powder, 20-25 parts of organic solvent and the like. The agent has a remarkable ant repelling and killing function, the shelf life of the agent is prolonged, the use of chemicals is reduced, thesafety threats on the environment and human beings are reduced, the preparing method is simple, and production is easy.

The invention provides a piezoelectric ceramic annular sensor for tubular concrete structure health monitoring, and belongs to the field of civil engineering structure health monitoring. The piezoelectric ceramic annular sensor comprises piezoelectric ceramic rings, waterproof and anti-electricity coatings, electromagnetic shielding coatings, cement mortar protection layers and wires. The piezoelectric ceramic annular sensor is used for transmitting signals to generate stress waves, the grouting quality of a tubular concrete structure can be monitored through the changes of energy of the received signals, the stripping condition between inner concrete and an overcladding layer can be monitored, and the use performance of the structure is judged. The piezoelectric ceramic annular sensor is suitable for tubular concrete structure construction process monitoring and health monitoring in the service process, the piezoelectric ceramic annular sensor is simple in structure, mass production is easy, the compatibility between the piezoelectric ceramic annular sensor and a concrete material is good, signal excitation and collection in the axial direction and the radial direction can be achieved, high applicability is achieved, and the sensor is provided for the construction process and service process of the tubular concrete structure in engineering.

The invention discloses a deep hole crack control blasting method for a grouting reinforced surrounding rock. The deep hole crack control blasting method comprises the following steps: (1) drilling holes on a rock body needing grouting, wherein the diameter of the drilled holes is 50-120mm, the depth of the drilled holes is 6-9m, and the distance between two drilled holes is 3-9m; (2) placing explosive containing tubes in the drilled holes, and filling stick explosive into the explosive containing tubes, wherein each explosive containing tube is formed by welding two arc-shaped plates in an overlapping mode, the decoupling coefficient of the stick explosive is 1.5-2.5, and the density of linear explosive is 1.1-1.7kg/l; and (3) performing presplitting blasting on the explosive in the drilled holes after explosion, and then filling grouting materials into cracks of the drilled holes. A plurality of cracks can be formed in a stratum, blast holes can be reserved and cannot collapse, grouting dispersing range is expanded, accordingly effective grouting curtains can be formed, the effect of grouting and water plugging can be achieved, and the surrounding rock can be reinforced.

The invention relates to a pulse frequency intensifier for an anion generating device, which comprises a rectangular shell, an inner end cap and an outer end cap, wherein a first electrode and a second electrode are arranged on two sides in the rectangular shell respectively, and natural mineral power is filled between the first electrode and the second electrode and generates a proper amount of impedance components and capacitance components under specific relative humidity condition to achieve the effect of a remote control (RC) effective oscillation circuit; and the inner end cap seals a cavity formed by the two electrodes and the natural mineral powder by sealing glue, and the outer end cap seals the rectangular shell by the sealing glue which is used for maintaining the relative humidity ratio in the rectangular shell. The pulse frequency intensifier for the anion generating device has the advantage that the pulse frequency can be intensified and stabilized, so that the corona discharge effect of the anion generating device can be intensified.

The invention provides a low-chirp distributed Bragg feedback tunable laser and a preparation method thereof. The low-chirp distributed Bragg feedback tunable laser comprises: a front grating region,a gain region, a phase region and a rear grating region which are arranged on a same substrate and sequentially attached at an equal height; each of the front grating region, the rear grating region and the phase region comprises a passive material layer; the passive material layers are arranged on the substrate; grating structures are further respectively arranged on the passive material layers of the front grating region and the rear grating region; the grating structures are uniform periodic distributed Bragg gratings and/or sampling gratings; and the gain region sequentially comprises a lower waveguide layer , an active layer and an upper waveguide layer from bottom to top. The low-chirp distributed Bragg feedback tunable laser has the beneficial effects that by combining with the uniform periodic distributed Bragg grating structures of the front grating region and the rear grating region with the current function of the phase region, the chirp of the tunable laser is controlled and reduced, the optical transmission distance is extended and the transmission quality is improved.

The invention discloses an axial pulse vortex ring generation device based on positive and negative pressure alternating closed chamber deformation. The axial pulse vortex ring generation device comprises a fixed rack, a ventilation device, a disturbance device and a power device, wherein the ventilation device, the disturbance device and the power device are fixedly arranged on the fixed rack, and the power device is connected with an elastic film in the ventilation device through the disturbance device; and the power device comprises a strain gauge, a positive-negative pressure generation chamber and a cold-hot alternating mechanism, the strain gauge is arranged at one end of the positive-negative pressure generation chamber and connected with the input end of the disturbance device, andthe other end of the positive-negative pressure generation chamber is open and provided with the cold-hot alternating mechanism. According to the axial pulse vortex ring generation device based on positive and negative pressure alternating closed chamber deformation, heat change can be converted into mechanical displacement, airflow in a ventilation pipeline is accelerated, axial pulse disturbance is generated, and then a vortex ring is generated.

The invention relates to the technical field of camping equipment, in particular to an insect trapping device used for camping. The technical problem to be solved by the invention is that small wingedinsects can influence people's sleep due to the fact that no appropriate equipment is used for attracting insects during camping. In order to solve the technical problem, the invention provides an insect trapping device for camping. The insect trapping device comprises an upper ball body; the bottom of the upper ball body is in threaded connection with a lower ball body, a photovoltaic solar panel is fixedly connected to the surface of the upper ball body, and a circular ring sleeve is welded to the movable opening of the top of the upper ball body, and the bottom of the circular ring sleeveis movably connected in a movable opening in the bottom of the lower ball body in a sleeved mode. The sliding insect trapping device can be conveniently arranged inside the circular ring sleeve, and the circular ring sleeve is positioned inside the upper ball body and the lower ball body, so that the sliding insect trapping device can be stored and protected. The sliding insect trapping is thus more convenient to carry, and the energy consumed by people in the process of carrying the insect trapping device is reduced.

The invention belongs to the field of defect detecting of additive manufacturing, and in particular discloses an electromagnetic ultrasonic detection system and method. The electromagnetic ultrasonic detection system comprises a control sub-system, a transmitting sub-system, a receiving sub-system and a data processing sub-system; the control sub-system comprises an upper computer and a main control module realizing communication; the transmitting sub-system comprises a high power pulse generation module and a pulse source transmitting probe, which are arranged in sequence; when detection is carried out, the upper computer transmits an external detection instruction into the main control module; the main control module controls the high power pulse generation module to generate a pulse string synthesized by multiplex Marx circuit attenuation pulse according to the detection instruction; the pulse string is received by the pulse source transmitting probe, and transmitted to a test piece to be detected; therefore, electromagnetic ultrasonic wave is generated in the test piece to be detected; and the electromagnetic ultrasonic wave is received by the receiving sub-system, sent into the data processing sub-system, and then, transmitted to the upper computer through the main control module. The electromagnetic ultrasonic detection system and method disclosed by the invention can realize non-contact type detection of a work piece in an additive manufacturing process, and have the advantages of being high in detection precision, diversified in detection frequency, large in detection depth and the like.

The invention relates to an audio-visual count-down traffic light which is mainly composed of a traffic light body, a timing circuit module and gradient indicating lamps, wherein a red light, a yellow light and a green light are arranged on the traffic light body. The audio-visual count-down traffic light is characterized in that the red light, the yellow light and the green light on the traffic light body are arranged in a triangle shape, and the triangle is bigger. A large amount of gradient indicating lamps which are arranged in a linear shape are arranged on the edges of the triangle which is formed by the red light, the yellow light and the green light. The gradient indicating lamps form a gradient indicating lamp group, and the gradient indicating lamp group, the red light, the yellow light and the green light are connected with the timing circuit module. The timing circuit module controls the lightening conditions of the gradient indicating lamp group, the red light, the yellow light and the green light.

The invention discloses a wall-mounted air conditioner internal unit enclosure. The wall-mounted air conditioner internal unit enclosure comprises air inlets (1) and air outlets (2), and is characterized in that the air inlets (1) are formed in the lower portion of the enclosure; the air outlets (2) are formed in the upper portion of the front side of the enclosure; multiple round sealing ports serve as the air outlets (2); rotary air outlet mechanisms (3) are arranged in the air outlets (2); and active rotation mechanisms serve as the rotary air outlet mechanisms (3). The air outlets are formed in the upper portion of the front side of the wall-mounted air conditioner internal unit enclosure, compared with air outlets formed in the lower portion, the spread distance of cold air is long, the hang time is long, longer heat exchange time can be achieved, indoor air exchange is more uniform, the temperature of air scattered on human bodies is more proper, and the cold air is prevented from facing persons directly.

The invention belongs to the technical field of bird repelling equipment, and discloses a sound amplifying tube for generating valley echo effect of repelling bird impact waves and a control method. The sound amplifying tube comprises a blasting chamber, wherein a blasting gas inlet is formed in the right end of a blasting chamber, a blasting gas inlet joint is welded in the blasting gas inlet, acenter shaft is welded at the left end of the blasting gas inlet joint; and a cross-shaped fixing support is welded to the left end of the center shaft and fixed to the left end of the inner side of the blasting chamber in a welded mode; and a plurality of equidistantly arranged triangular airflow diversion frames are welded in the middle of the central shaft, and the plurality of triangular airflow diversion frames have the same angle difference in sequence from left to right. The sound amplifying tube is prevented from being influenced by the external environment, good explosion sounds can be generated, the explosion sounds are louder than that of a traditional gas gun, the energy is greater, a spiral structure is formed by the plurality of triangular airflow diversion frames, three strands of impact waves with the spiral rotating direction are formed through dredging of the triangular airflow dredging frames, and the sounds are transmitted farther and have the feature of valley echoeffect.

The invention relates to a manufacturing method of a high-voltage net for an insecticidal lamp. The manufacturing method includes the following steps that firstly, a quartz glass tube serves as a high-voltage net carrier, and a high-voltage grid circuit diagram is designed on the outer surface of the quartz glass tube; secondly, conductive slurry silver is printed to the outer surface of the quartz glass tube at a time through a curved surface screen printing machine according to the designed high-voltage grid circuit diagram; thirdly, the quartz glass tube is placed in a sintering furnace to be sintered and fused; fourthly, the surface of a circuit coating with the sintered silver is electroplated with anti-corrosion metal; fifthly, welding and forming are conducted. The high-voltage net is free of gaps and has the smooth outer surface, and killed insects cannot adhere to the portion between high-voltage grids and can automatically fall to be collected. The higher light transmittance is achieved, and the pest killing effect is improved. Product accuracy is consistent, and performance is stable; energy consumption is low, and service life is long and is 2 to 3 times that of an ordinary high-voltage net.

The invention provides a grain throwing device. The grain throwing device comprises a bottom plate and a guide component arranged on the bottom plate and used for guiding grains, wherein the guide component comprises a guide plate; the guide plate comprises an arc-shaped section and a straight section; an extension direction of the straight section is a tangential direction of the tail end of thearc-shaped section. The device is capable of uniformly throwing the grains and uniformly scattering the grains into a drying chamber, so that the problem that the grains are unevenly piled in the drying chamber can be effectively solved; the effective utilization rate of the space of the drying chamber and the grain drying efficiency are improved; the grains can be uniformly heated and are uniformin water content in the drying process; in addition, the invention also provides a grain drying machine comprising the grain throwing device; the grain drying machine is capable of uniformly drying the grains; the space utilization rate of the drying chamber is high; the drying quantity in unit time is high; the grains can be uniformly heated in the drying process; the water content of the grainstreated by the drying machine is uniform.