30results about How to "Expand the use of the environment" patented technology

The invention relates to a preparation method for FeAl intermetallic compound porous material, which belongs to the field of inorganic porous material. The technical problem solved by the invention is to provide the preparation method for the FeAl intermetallic compound porous material with a pore structure having higher controllability. The method comprises the following steps: firstly preparing a porous supporting body and composite slurry; then coating the surface of the porous supporting body with the composite slurry; and sintering and cooling down the porous supporting body in the vacuum atmosphere to obtain the FeAl intermetallic compound porous material. The method capable of regulating the porous structure of the porous material is characterized by a short flow, low cost and low energy consumption. The porous material has excellent resistance to high temperature sulfurization, resistance to high temperature oxidation and thermal shock, good mechanical performance at a high temperature, good processability and solderability, and the like. Therefore, the FeAl intermetallic compound porous material has bright application prospect.

The invention discloses a full heat exchange type fresh air machine which comprises a fresh air inlet chamber, an exhausted air inlet chamber, a fresh air supply chamber and an exhausted air supply chamber. The full heat exchange type fresh air machine is further provided with a fresh air bypass port and an exhausted air bypass port, wherein the fresh air inlet chamber and the fresh air supply chamber are communicated through the fresh air bypass port to form a fresh air bypass air circuit, and the exhausted air inlet chamber and the exhausted air supply chamber are communicated through the exhausted bypass port to form an exhausted air bypass air circuit. By means of the full heat exchange type fresh air machine, under the conditions that the size of a machine body is not increased, the purpose of bypassing the fresh air and the exhausted air through different air circuits is achieved.

The invention belongs to the technical field of photovoltaic cables, and relates to a photovoltaic cable, in particular to a high strength photovoltaic cable preventing biting of rats and ants. The photovoltaic cable comprises a conductor, an insulation layer, a middle covering layer, a steel wire armoring layer, a sheath layer and an outer protecting layer. The middle covering layer wraps the outer surface of the insulation layer, the steel wire armoring layer wraps the outer surface of the middle covering layer, the sheath layer wraps the outer surface of the steel wire armoring layer, and the outer protecting layer wraps the outer surface of the sheath layer. The photovoltaic cable preventing rats and ants is simple, compact and reasonable in structure, expands the range of use environments, not only can be used outdoors, but also can be used under special environments, reinforces physical strength, avoids damage caused by biting of the rats and the ants, and meanwhile improves anti-low-frequency-interference capacity to a certain degree.

The invention relates to the field of manufacturing of functional PVC(polyvinyl chloride) films and discloses a weather-resistant PVC film and a manufacturing method thereof. The weather-resistant PVC film comprises a PVC film and a functional coating; the functional coating comprising, by weight, 55-65 parts of polyurethane (PU), 5-15 parts of phosphite ester, 15-25 parts of UV531 and 5-15 parts of diethylene glycol dibenzoate is printed and coated on the surface of the PVC film. The preparation method of the weather-resistant PVC film includes the steps of (1) allocating coating material; (2) preheating the PVC surface film at the temperature of 55-70 DEG C; (3) painting and coating the preheated PVC surface film in a printer; (4) drying and cooling by the details of drying the processed film at the temperature of 50-60 DEG C and then cooling, and finally rolling up finished products. The weather-resistant PVC film has the advantages of operational simplicity, low cost and good effect.

The invention discloses a positive-voltage explosion-proof distribution cabinet, which comprises a cabinet body, a transparent observation door and an acousto-optic alarm. An upper roof plate is fixedat the top of the cabinet body, and a lower mounting base is mounted at the bottom of the cabinet body. The transparent observation door is fixed on the front side of the cabinet body. A left supporting rod is mounted inside the left end of the upper roof plate, and a right supporting rod is mounted inside the right end of the upper roof plate. Protective covers are respectively fixed outside thetops of the left supporting rod and the right supporting rod. The positive-voltage explosion-proof distribution cabinet is equipped with protective covers which are driven to be opened by the reverserotation of the left supporting rod and the right supporting rod, so that the opened protective covers can protect the top of the whole positive-voltage explosion-proof distribution cabinet, and thewhole positive-voltage explosion-proof distribution cabinet can be used outdoors without the shelter of a canopy. Therefore, the scope of use environments of the positive-voltage explosion-proof distribution cabinet is widened, and the positive-voltage explosion-proof distribution cabinet can be well installed and used outdoors.

The invention relates to the field of preparation of functional PVC films, and discloses a scratch-resistant PVC film and a preparation method thereof. In the scratch-resistant PVC film provided by the invention, the surface of a PVC film is printed and coated with a functional coating, wherein the functional coating has the thickness of 4-6 microns, and comprises the following components in part by weight: 55-65 parts of polyurethane, 35-45 parts of polymethyl methacrylate and 5-12 parts of aziridine. The production method of the scratch-resistant PVC film provided by the invention comprises the following steps: (1) blending a coating paint; (2) preheating: preheating a PVC surface film at 50-70 DEG C; (3) printing and coating: transferring the preheated PVC surface film into a printing press for coating the coating; (4) drying and cooling: drying the film prepared in step (3) at 50-55 DEG C, cooling and rolling the film to obtain the scratch-resistant PVC film. The process of the invention is simple and easy to operate, low in cost and excellent in effect.

The invention discloses a self-powered wind speed measuring device comprising a base and rotating module and a friction power generation module. The base and the rotating module comprise a base, a rotating shaft and a wind cup, and the base is used for supporting the self-powered wind speed measuring device, the rotating shaft is used for fixing the wind cup and enabling the wind cup to rotate togenerate wind energy. The friction power generation module is connected with the base and the rotating module, and is used for converting wind energy into electric energy so as to analyze the electricenergy to obtain the wind speed of the environment in which the electric energy is positioned. The device has advantages of simple structure, no requirement of power supply, and low cost, and capabilities of effectively measuring wind speed in certain range and realizing function of converting wind energy in natural environment into electric energy.

The invention relates to an LED (light emitting diode) tube lamp. The LED tube lamp comprises a tubular shell, an LED light source panel, a power supply circuit board, a prism plate, a reflecting cup and an installation leaf spring, wherein two sides of the shell are respectively provided with a slit in symmetry, the LED light source panel is fixed on the inner top surface of the shell, the LED light source panel is provided with a reflecting membrane, the prism plate is arranged in a top opening of the reflecting cup, the reflecting cup is fixed on the shell, the top of the reflecting cup is tightly attached to the LED light source panel, the power supply circuit board is arranged between the radial outer side of the reflecting cup and the shell and fixed below the LED light source panel in a separating manner, one end of the installation leaf spring is fixed inside the shell, and the other end stretches outside the shell through the slit. The LED tube lamp is simple in structure, small inn size, compact, attractive, strong in heat radiating property, low in height and high in space utilization rate.

The invention relates to the technical field of touch panels, in particular to a touch panel capable of efficiently blocking electromagnetic waves. The touch panel includes a workbench, wherein a mounting groove is formed in the middle of the upper end surface of the workbench; a heat dissipation bottom plate is arranged in the middle of the lower end face of the workbench; and jacks are formed infour edge corners of the lower end surface of the workbench. The touch panel has the beneficial effects that the heat dissipation bottom plate and a cooling fan are arranged at the lower end of the workbench, and then an inner cavity of the mounting groove is cooled in time, so that smooth dissipation of internal heat is ensured, and the use environment of electrical parts is protected; accordingto the touch circuit board, the metal wire mesh of a rectangular frame structure in linear distribution is matched with the wave absorbing layer, so that the touch circuit board is blocked in all directions, and the electromagnetic wave blocking effect is enhanced, and the operation accuracy of the touch circuit is improved; through cooperation of the insertion rods and the conductive supportingrods, winding of the wires is used for replacing a shielding metal net, and rapid installation of the blocking device is achieved.

The invention discloses a projector sliding door motor control method. The control method comprises the steps of collecting an environment temperature value; obtaining a motor rotary speed value according to a pre-stored temperature-rotary speed relation table, or obtaining a motor frequency value according to a pre-stored temperature-frequency relation table; and controlling a sliding door motorto drive a sliding door to be opened according to the motor rotary speed value or the motor frequency value, or controlling the sliding door motor to drive the sliding door to be closed according to the motor rotary speed value or the motor frequency value. Through the pre-stored temperature-rotary speed relation table or the pre-stored temperature-frequency relation table, the sliding door motorcan be dynamically controlled according to different temperatures, so that it is ensured that the projector electric sliding door can be opened or closed as normal at different temperatures.

The invention discloses a combined stove. The combined stove comprises a base provided with a first cavity inside, a heating device arranged in the first cavity and comprising a heating main body anda heating panel arranged at the top of the heating main body, and an induced draft fan arranged on the base in a mode of moving between a storage position and a lampblack discharge position up and down, wherein the induced draft fan comprises a bracket, an exhaust fan, a lampblack discharge pipe and a driving piece; the driving piece is arranged on the base, and is matched with the bracket to drive the bracket to move up and down; the bracket is provided with an intake port; the exhaust fan is arranged in the bracket; the lampblack discharge pipe is connected with an exhaust end of the exhaustfan; in the storage position, the intake port is not higher than the heating panel; and in the lampblack discharge position, the intake port is positioned above the heating panel. The combined stoveachieves the heating function and the lampblack discharge function, can effectively reduce indoor lampblack to prevent indoor environmental pollution, facilitates the health of users, and widens the application environment range.

The invention discloses a rotary shaft. A first rotary shaft body is connected with a first main body of electronic equipment. A second rotary shaft body is connected with a second main body of the electronic equipment. At least one transmission belt is arranged between the first rotary shaft body and the second rotary shaft in a sleeved mode to synchronize the torsion of the first rotary shaft body and the second rotary shaft. According to the technical scheme, the transmission belts are used for replacing an intermediate gear between synchronous gears of the two shaft bodies. Therefore the intermediate gear does not need to be added between the first rotary shaft body and the second rotary shaft body, the thickness of the electronic equipment is further reduced, and the technical defect that the thinning development tendency of the multi-structure electronic equipment is limited is overcome. The technical effects of reducing the production cost, further lowering the machining complexity and improving production and processing efficiency are realized.

The invention relates to the technical field of security check, in particular to rotary passive terahertz security check equipment and a backboard structure thereof. The rotary passive terahertz security check equipment comprises a wave-transparent layer, a wave-absorbing layer and a structural supporting layer, wherein a cavity with a top opening is formed between the wave-transparent layer and the structural supporting layer, and the wave-absorbing layer divides the cavity into a first air cavity and a second air cavity; the first air cavity and the second air cavity are communicated at the bottom of the cavity. The rotary passive terahertz environment control system backboard structure solves the problems that an existing backboard can only refrigerate the single surface of a wave absorbing layer, and the performance of passive terahertz safety inspection equipment is limited and influenced.

The invention discloses a road-monitoring unmanned plane support roller. The road-monitoring unmanned plane support roller comprises a steering plate, a fixed brake structure and an inserted link, wherein the steering plate is provided with a bolt fixing hole, a bearing box is fixed in a middle portion of the steering plate, the upper side surface of the fixed brake structure is fixed with a shock-absorbing fixing column, the side surface of the fixed brake structure is provided with a polyurethane side wheel, the outer side of the polyurethane side wheel is wrapped with a polyurethane layer,the center is provided with PA Teerling, the PA Teerling is connected to the polyurethane layer through a ABS wheel core, and the ABS wheel core is fixed with a reinforcing rib. According to the road-monitoring unmanned plane support roller, the connection strength between a spoke and the wheel core can be increased by the arrangement of the reinforcing rib, and the material cost of the spoke canbe saved, a casting used in the polyurethane wheel provides strong impact resistance, large loading force, and large usage environment scope to the polyurethane wheel, and a brake disc and a brake block are designed to enhance the braking performance and better perform the unmanned plane operation.

A bandwidth-broadened single-fed single-layer circularly polarized micro-strip antenna based on multi-orthogonal-mode fusion relates to the technical field of unmanned aerial vehicle satellite navigation. The micro-strip antenna comprises a dielectric substrate, a probe, a metal floor and an SMA joint. The metal floor is of a horizontally-placed square plate structure. The SMA joint is axially, vertically and fixedly installed on the lower surface of the metal floor. The dielectric substrate is of a square plate structure. The dielectric substrate is placed horizontally above the metal floor.The probe is axially, vertically and fixedly installed between the dielectric substrate and the metal floor. The axial tip of the probe passes through the dielectric substrate, and the axial top of the probe is parallel to the upper surface of the dielectric substrate. The impedance bandwidth of the circularly polarized antenna is broadened, the aerodynamic effect of the antenna on unmanned aerialvehicles is reduced, and the positioning accuracy of the system is improved. The micro-strip antenna has the advantages of small size, low weight and low cost.

The invention is suitable for the technical field of agricultural machinery, and provides a winding and cleaning machine for agricultural films. The winding and cleaning machine comprises a pull type vehicle body, wherein the vehicle body is divided into a front vehicle body used for winding complete films and a rear vehicle body used for collecting broken films, the front vehicle body provides rotating power for a winding roller for winding the complete films through walking front wheels, and the rear vehicle body provides power for a front row of roller sets, a rear row of roller sets and a collecting part through walking rear wheels, the roller sets are staggered and used for turning up the broken films from soil, and the collecting part sucks up the turned broken films. According to the winding and cleaning machine for the agricultural films, rotation of the front wheels and the rear wheels during walking is adopted in the whole process to serve as power for completing agricultural film winding and power for turning up the broken agricultural films and sucking and collecting the agricultural films after turning up, the situation that the agricultural films can be used in the field without power supply is guaranteed, and the use environment range of the whole equipment is widened.

A high-voltage frequency converter test system convenient to debug disclosed by the present invention comprises a simulation test system and a detection box, the simulation test system comprises a preset detection module, a data analysis module and a post-processing module, and the preset detection module comprises a temperature rise module, a scanning module and a dust simulation module. The temperature rise module comprises a heating unit and a temperature measurement unit, the dust simulation module comprises a suction unit, the data analysis module comprises a data acquisition module, a parameter judgment module and a scheme setting module, and the post-processing module comprises a purification module, a debugging module, a warning module and a power-off module. The warning module comprises a starting unit and an alarm unit, the preset detection module is in signal connection with the post-processing module through the data analysis module, a movable frame is placed in the detection box, and the device achieves detection of the heat dissipation effect of the frequency converter in a temperature and dust simulation working mode.

According to an independent dust collection system of a vacuum sweeper, a power source is generated by an automobile engine, and power is provided for operation of a motor. The motor drives the transfer case to drive the air compressor and the belt wheel to operate. Meanwhile, the whole oil way circulating device and the water way circulating device begin to operate to cool a cylinder body and a motor of the air compressor and lubricate a cam shaft and a transfer case gear. And the normal long-time operation of the whole device is ensured. An independent system is adopted in the whole structure, modular arrangement is achieved, no other common part is needed except for a power source, daily maintenance and disassembly are convenient, after the system is disassembled, the vehicle can be used for other purposes, the vehicle is fully used, and cost input is reduced. The system adopts automatic water circulation and is used for cooling heat generated by a piston cylinder and a motor of theair compressor, so that the purpose of long-time use of the system is achieved. An oil pump is used for driving lubricating oil to circulate to lubricate a cam shaft of the air compressor and gears of the transfer case, and the service life of the whole system is prolonged.

The invention belongs to the field of manufacturing of magnetic core materials and particularly relates to a high-performance molybdenum-based rare-earth ferrite magnetic core material. The high-performance molybdenum-based rare-earth ferrite magnetic core material comprises the following raw materials in parts by weight: 5 parts of ferric sulfide, 11 parts of ferric sulfate, 15 parts of potassiummolybdate, 27 parts of ferric oxide, 21 parts of ferroferric oxide, 5 parts of lanthanum chloride, 9 parts of copper hydroxide, 2 parts of zinc carbonate, 7 parts of manganese dioxide, 2 parts of bentonite, 13 parts of zirconium dioxide, 11 parts of titanium tetrachloride and 8 parts of molybdenum trioxide.

The invention provides a limiting cap for a honeycomb restraint system, and belongs to the technical field of anchor rod connectors. The limiting cap aims to solve the problem that in the process of laying a slope protection system and mounting a reinforcing device, due to the special reinforcing requirement, an existing structure cannot meet the mounting requirement. The limiting cap comprises aconical cylinder, wherein connecting anchor lugs are arranged on the periphery of the circular plane of the conical cylinder; and a through hole is formed in the middle of the conical cylinder in thevertical direction. The limiting cap is characterized in that the connecting anchor lugs are horizontally arranged relative to the circular plane of the conical cylinder; shaft connecting structures are arranged on the connecting anchor lugs and can be bent downwards, and when the anchor lugs are bent to the position perpendicular to the circular plane of the conical cylinder, clamping positioningis carried out through clamping mechanisms. Due to the bendable structures of the anchor lugs, mounting is greatly facilitated, time is saved, the fixing requirement for multiple angles and multipleaspects is met, and the use environment range of anchor rods is enlarged. Meanwhile, the fixing effect can be improved through clamping structures at the tail ends of the connecting anchor lugs, and loosening is prevented.

The invention belongs to the field of magnetic core material manufacturing, and particularly relates to a stable ferrite magnetic core material. The stable ferrite magnetic core material comprises thefollowing raw materials in parts by weight: 15 parts of ferric chloride, 7 parts of ferric sulfate, 5 parts of sodium tungstate, 21 parts of ferric nitrate, 35 parts of ferric oxide, 25 parts of ferroferric oxide, 5 parts of red mud, 2 parts of zinc oxide, 11 parts of copper oxide, 9 parts of zirconium hydroxide and 1 part of titanium tetrachloride.

The invention relates to the technical field of power distribution cabinets, and discloses an explosion-proof power distribution cabinet with an independent instrument installation room, which comprises a base, the upper surface of the base is fixedly connected with a cabinet body, the outer walls of the two sides of the cabinet body are both provided with installation plates, one side of each installation plate is fixedly connected with a fixed pipe, and the fixed pipe and the installation plate are installed at an included angle of 90 degrees. A plurality of connecting blocks are fixedly connected to one side of the fixing pipe, a plurality of limiting pipes are fixedly connected to one ends of the connecting blocks, slideways are formed in the inner walls of one sides of the fixing pipe, the connecting blocks and the limiting pipes, the slideways correspond to one another, the same sealing block is movably connected between the slideways, and a plurality of limiting blocks are fixedly connected to one side of the fixing pipe. According to the invention, when short-circuit explosion occurs in the power distribution cabinet, airflow generated by the power distribution cabinet can be rapidly discharged, so that the risk of explosion of the cabinet body caused by impact of the airflow on the cabinet body is effectively avoided, the explosion loss is reduced, and the safety of people is guaranteed.