447results about How to "Avoid health effects" patented technology

The invention discloses a method for protecting eyesight. The method comprises the following steps: presetting a time period; detecting an audience who is the most close to the screen once in each time period, and acquiring the viewing distance of the audience; determining whether the viewing distance is smaller than the preset value; when the viewing distance is smaller than the preset value, generating a first reminding information indicating that the viewing distance is too small, until the audience moves out of the area of the preset value. According to the invention, only the viewing distance of the audience who is the most close to the screen is acquired, such that whether the audience viewing distance satisfy the requirement of a scientific viewing distance can be rapidly determined; it is not necessary to acquire a viewing distance of every audience, such that working load of corresponding hardware is reduced. When the viewing distance of the audience is smaller than the preset value, the first reminding information is generated for indicating the audience that the viewing distance is too small. The audience adjusts the viewing distance according to the first reminding information, such that a requirement of scientific and healthy viewing of TV program can be satisfied, and audience health is prevented from being influenced by a small viewing distance.

The invention discloses a high-efficiency grinding device for building decorative walls, which comprises a bottom plate, a first support leg, a roller, a first support plate, a second support leg, a T-shaped slider, a support shaft, a second motor, a threaded rod, a first Two support plates, the first box body, the second box body, the transmission mechanism, the second box body, the support rod, the fourth motor, the grinding fan and the dust removal device, the present invention is provided with the third motor, the threaded rod and the second support plate , adjust the height of the whole device through the cooperation of the above components, so as to grind the different heights of the wall surface. There is a transmission mechanism, which drives the grinding fan to rotate and move up and down through the transmission mechanism, so as to polish the building wall surface, which is convenient and fast. The one with high efficiency is equipped with a dust removal device. The dust removal device includes a connecting rod, a suction nozzle and a vacuum cleaner to remove a large amount of dust generated during the grinding process, so as to avoid affecting the health of the decorator and increasing the difficulty of cleaning later.

The invention discloses an agglomerated cement recycling and crushing device for a building. The device comprises a bottom plate, a crushing frame, a motor, a disc-shaped cam, a first belt pulley, a second belt pulley, a roller, a first connecting rod, a crushing plate, a spring, a third belt pulley, a first rotating shaft, a disc, a second connecting rod, a second sliding block, a second sliding rail, a third connecting rod and a dust falling mechanism. The device is provided with the disc-shaped cam, the roller, the first connecting rod, the spring and the crushing plate, through cooperation of the parts, agglomerated cement in the crushing frame is crushed through the crushing plate, the crushing speed is high, and the labor intensity of workers is relieved. The first belt pulley, a first belt, the third belt pulley, the disc, the second connecting rod and the third connecting rod are arranged, through cooperation of the parts, the crushing frame moves leftwards and rightwards, thus the cement in the crushing frame can be comprehensively crushed through the crushing plate, crushing is more through and uniform, and the crushing efficiency is improved. The dust falling mechanism is arranged, continuous water spraying is realized, dust falling is carried out, and influence on the health of the workers is avoided.

The invention relates to a winding recovery device of a power cable, and belongs to the technical field of electric power cable recovery. The winding recovery device comprises a workbench, a conveyingassembly, a sheath-cutting assembly, a cleaning assembly, a peeling assembly and a recovery assembly, wherein the conveying assembly, the sheath-cutting assembly, the peeling assembly and the recovery assembly are sequentially arranged on the workbench from left to right; the cleaning assembly is arranged below the workbench, and one end of the cleaning assembly extends to the sheath-cutting assembly; the conveying assembly comprises a first mounting plate, a bearing plate, a driving part, a pressing part and two limiting plates, wherein the first mounting plate is vertically arranged on theworkbench; the bearing plate is fixedly connected with the front end face of the first mounting plate; and the driving part and the pressing part are arranged on the first mounting plate and the bearing plate. According to the cable, the sheath-cutting assembly is used for cutting an insulating sheath of the cable; and the peeling assembly separates the insulating sheath and metal wires of the cable; and the recovery assembly is used for winding and recovering the metal wires.

The invention discloses a liquid heating device with adjustable power and a power control circuit of the device. The liquid heating device and the power control circuit are applied to the fields of liquid heaters such as electric water boilers and electric water heaters. The power can be adjusted automatically and intelligently according to different heating stages of the device. A group of relays and a group of three-terminal bidirectional silicon-controlled switches are connected in parallel on a circuit board, and switching and alternative use of the three-terminal bidirectional silicon-controlled switches and the relays are intelligently controlled in the heating stages of the liquid heating device according to an embedded chip calculation result. Therefore, when the liquid heating device operates under full power, the relays with low cost are switched to control opening and closing of a heating device. When the liquid heating device operates under low power, the three-terminal bidirectional silicon-controlled switches with small current are switched to control opening and closing of a heating pipe. The device achieves a power adjustable function, has high reliability, is low in cost and reduces energy consumption by means of calculation of software, an embedded intelligent chip and a control circuit, so that the liquid heating device avoids multiple boiling and effects of heavy metal produced in the multiple boiling on health.

The invention discloses a prompting method, relates to the technical field of data processing, and is used for solving the problem that users cannot be reminded to adjust a use posture when necessaryat present. The method includes the steps: acquiring a head forward inclined angle and the corresponding duration time; calculating a cervical spine fatigue value according to the head forward inclined angle and the duration time; and when the cervical spine fatigue value exceeds a preset alarm threshold value, outputting posture adjustment prompting information. The method can calculate the cervical spine fatigue value by the obtained head forward inclined angle and duration time, and then whether the withstanding pressure of the cervical spine of a user is normal is judged according to the cervical spine fatigue value, so the prompting information is outputted to remind the user to adjust the use posture when necessary, and influence on a body due to great pressure withstood by cervicalvertebra is avoided. The invention also discloses the prompting device, a headwear device and a computer readable storage medium, and the beneficial effects are achieved.

The invention discloses an automatic wall drilling device, which comprises a box body, first motors are fixedly connected to both sides of the top of a T-shaped fixed plate on the inner wall of the box, and a shaft seat is fixedly connected to the bottom of the inner wall of the box, and the shaft seat rotates. A drive shaft is connected, one end of the drive shaft is fixedly connected to the drive wheel, the first motor is connected to the drive wheel through gear transmission, one side of the T-shaped fixed plate is connected to the hydraulic rod, and the top of the box is connected to the lifting frame in rotation. The top is rotatably connected with a lifting platform, one side of the top of the lifting platform is fixedly connected with a support plate, the support plate is slidingly connected with a moving frame, the top of the moving frame is fixedly connected with a drilling device, and the top of the lifting platform is fixedly connected with a second motor. One end of the output shaft of the second motor is fixedly connected with a screw rod. The invention relates to the field of electromechanical tools. The wall surface automatic drilling device realizes automatic feeding, improves hole quality and work efficiency, and protects the safety of construction personnel.

The invention discloses industrial gear oil, which contains the following components by weight percent: 98-99.5 percent of base oil with saturated hydrocarbon content being more than 90 percent and sulfur content being less than 0.03 percent, 0.1-0.5 percent of amine antioxidant, 0.1-0.9 percent of sulfur-containing extreme pressure antiwear agent, 0.02-0.1 percent of antirust and anticorrosion additive, 0.01-0.05 percent of metal deactivator and 0.001-0.5 percent of anti-foaming agent. The industrial gear oil provided by the invention has good extreme pressure lubricating performance and good antirust and anticorrosion performance, and has the advantages of high quality, long service life, no pollution and the like; by formulating the high-quality base oil and novel environmental-friendly gear oil additives and by using the unique extreme pressure antiwear agent, not only can the bearing capacity of the gear oil be greatly improved, but also the impact caused by the traditional lead-containing formula to the health of operating workers is precluded and the surfaces of steel and copper parts can be effectively prevented from being worn; and due to proper adhesiveness and extremely low friction coefficient, the noise produced by gears during operation and the temperature of a machine body can be effectively reduced, the energy consumption is reduced and the service life of the gears is prolonged.

The invention relates to a closed stock yard intelligent control system and an intelligent control method with a pre-homogenization function. A closed stock yard comprises a closed material storage shed, a material input system and a material output system. The intelligent control system comprises a material input system control system, a material output system control system and a central control system. Material stacking logic control and collection of the states of all material stacking mechanisms and fault information are achieved through the material input system control system. Material taking logic control and collection of the states of all material taking mechanisms and fault information are achieved through the material output system control system. The central control system comprises a data processing server, an automatic operation device, a material information management device, a central control PLC, a network device and a remote operation table. The systems are connected through an industrial wireless Ethernet. Links of the Ethernet and an industrial control network are industrially established between a central control chamber and all devices to serve as a communication platform for exchange of various types of information, data exchange is conducted through the communication platform, automated layered material stacking is achieved in the material stacking process, multiple material layers are cut at the same time in the material taking process, and pre-homogenization is achieved.

The invention relates to the technical field of agricultural biotechnology, in particular to a slow-release type composite cold storage agent. The composite cold storage agent comprises the followingcomponents: a temperature-controlled slow-release agent, calcium chloride, ammonium chloride, mannitol, polyvinyl alcohol, a thickener, sodium borate, a preservative and water, wherein the temperature-controlled slow-release agent is a special compound, has good adsorbability and water retention, becomes a gel-like product after absorbing water, and can play the role of component solidification and slow-release of clod energy in the cold storage agent; the thickener is selected from guar gum or xanthan gum; and the preservative is one or a mixture of any of potassium sorbate, sorbic acid, sodium benzoate and natamycin. The cold storage agent has the characteristics of large cold storage capacity, relatively high latent heat of phase change and relatively long cold release time, can be recycled, and is suitable for short-distance cold chain transportation of products such as vegetables, fruits, aquatic products, medicines and the like.

The invention belongs to the field of feeds for quails and particularly relates to Chinese-herbal-medicine feed for quails. The Chinese-herbal-medicine feed is characterized by comprising the following components in parts by weight: 40-60 parts of corn, 20-30 parts of soybean meal, 5-10 parts of super fish powder, 2-4 parts of soybean oil, 2-6 parts of grass seed powder, 5-10 parts of soybean oil cake residue, 5-10 parts of rice bran, 1-3 parts of salt, 10-15 parts of premix and 10-15 parts of traditional-Chinese-medicine additives. The Chinese-herbal-medicine feed has the beneficial effects that materials such as the corn, the bean meal and the grass seed powder with suitability for intaking of the quails, high digestibility and good palatability are selected according to the nutrition needed by growth and development of the laying quails, the nutrition is rich, the protein content is high, the energy is high, the nutrition needed by the laying quails is provided, the materials are easily digested and absorbed by the quails, the daily feed intake is increased and the egg laying capability is enhanced; a proper material matching ratio is determined by multiple testing, the most reasonable feed-egg ratio is ensured, and the raising income is largest; and the feed contains the components such as the premix and the traditional-Chinese-medicine additives, the types of nutritional elements are complete, and various nutritional components needed are provided, so that the healthy growth of the quails is ensured.

The invention relates to an air conditioner control technology and discloses a device for shielding an air outlet of a packaged air conditioner. The device for shielding the air outlet of a packaged air conditioner comprises a shielding panel, a guide rail and a stepping motor, wherein the shielding panel is provided with a movement mechanism which is matched with the guide rail, thus the shielding panel can move on the guide rail; the guide rail is arranged on the air outlet of the packaged air conditioner and is used for causing the shielding panel to move along the guiding direction of the guide rail; and the stepping motor is used for providing power for movement of the shielding panel on the guide rail. Besides, the invention also discloses a control method of the device for shielding the air outlet of the packaged air conditioner. The device and control method disclosed by the invention are applicable to the packaged air conditioner.

The invention discloses a safe, non-toxic, water-tight and non-scale water outlet pipe structure of a faucet. The safe, non-toxic, water-tight and non-scale water outlet pipe structure comprises a water outlet pipe of the faucet and a rubber film pipe. The rubber film pipe is inserted in the water outlet pipe of the faucet, one end of the rubber film pipe extends out of a water inlet of the water outlet pipe of the faucet and then sleeves the water outlet pipe of the faucet in an outwardly turned manner, the other end of the rubber film pipe extends out of a water outlet of the water outlet pipe of the faucet and then is connected with a T-shaped sleeve, and one end of the T-shaped sleeve is clamped at the water outlet of the water outlet pipe of the faucet after the other end of the T-shaped sleeve is arranged in the water outlet pipe of the faucet; sealing grooves are formed in the outer wall of the water outlet pipe of the faucet, and the rubber film pipe extends out of the water inlet of the water outlet pipe of the faucet and then sleeves the sealing grooves in an outwardly turned manner. The safe, non-toxic, water-tight and non-scale water outlet pipe structure has the advantages that when water flows into the safe, non-toxic, water-tight and non-scale water outlet pipe structure, the water outlet pipe, which is of a metal structure, of the faucet is not in contact with the water, accordingly, safe, non-toxic, water-tight and non-scale effects can be realized, and the like.

The invention relates to a device and method for automatic circulation material distribution control of a furnace top ore bin of a vertical furnace ore returning furnace and belongs to the field of automatic process control. The device and method for automatic circulation material distribution control aims to solve the problem that in the vertical furnace ore returning furnace material distributing process, manual operation is frequency, working intensity is high, the site environment is poor, and risks are high; by automatic material distributing control, uniform continuous safe material distribution of the ore furnace top ore bin is achieved, the material distribution process can automatically run for a long term through the method, a system is good in reliability and has material distribution evenness, the influence on health caused by the fact that material distribution operators work in the poor environment for a long term is avoided, labor intensity is greatly reduced, and the device and method for automatic circulation material distribution control are of great significance for guaranteeing that a vertical furnace runs safely stably efficiently.

The embodiment of the invention discloses a dust monitoring device for composite material dry cutting machining, and relates to the field of mechanical design and manufacturing. The dust monitoring device for the composite material dry cutting machining can remove dust automatically in a machining process, and comprises a controllable air pump which is connected with an air outlet of a dust removal box 2 through an air guide pipe and exhausts air from the dust removal box 2. An air inlet of the dust removal box 2 is connected with an air outlet of an isolating cover of a worktable on which a machine tool main shaft 5 is positioned through an air guide pipe. An air pump is connected with an air inlet of a main shaft protective cover 4 through an air guide pipe, and blows air into the main shaft protective cover 4. The main shaft protective cover 4 is of a semi-seal structure and is fixed to the machine tool main shaft 5; a tool which is mounted on the machine tool main shaft 5 extends through an air outlet of the main shaft protective cover 4. A dust concentration sensor 6 is mounted on the isolating cover of the worktable on which the machine tool main shaft 5 is positioned; a probe of the dust concentration sensor 6 extends into the inside of the isolating cover to detect the concentration of the dust inside the isolating cover. The dust monitoring device for the composite material dry cutting machining is applicable to dust removal of the composite material dry cutting machining.

The invention discloses a high-comfort treadmill, which comprises a base and a running seat. A cavity is provided on the upper side of the base, and a plurality of damping springs are arranged inside the cavity. The upper ends of the damping springs are connected with a support plate to support The left and right ends of the plate are pierced with threaded rods, the upper part of the threaded rods is provided with an adjusting nut, the lower end of the threaded rods is connected with the bottom of the cavity in rotation, and the upper left part of the supporting plate is provided with a supporting column, and the upper end of the supporting column is rotated The seat is connected with the running seat, the upper right part of the support plate is provided with an electric telescopic rod, the lower right part of the running seat is provided with a sliding groove, and a sliding block is arranged in the sliding groove, and the lower end of the sliding block passes through the rotating seat and the electric telescopic rod. The upper end of the running seat is connected, the upper side of the running seat is provided with a running belt, the upper side of the running belt is evenly distributed with some projections, and the upper right end of the running seat is provided with a telescopic device. The invention has the advantages of simple structure, convenient use, convenient movement, high use comfort and various functions, and satisfies people's use requirements.