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

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 a polishing machine for building materials capable of adjusting polishing positions in the technical field of building material polishing. The polishing machine comprises a base; a T-shaped groove is formed in the left side of the top of the base; a slide block is arranged in the T-shaped groove; sleeve rods are arranged on the right side of the top of the base and at the top of the slide block; clamping and dust sucking devices are arranged at opposite ends of two sets of overturning motors through motor shafts; a rotating ball is arranged at the bottom of the slide block through a ball groove; four sets of electric extension rods are arranged at the bottom of the slide block in an annular array mode; the bottoms of the electric extension rods are connected to thebottom of the outer wall of a connecting rod; a polishing motor is arranged at the bottom of the connecting rod; and a bottom motor shaft of the polishing motor is connected with a polishing head. Thedevice can position, clamp and overturn the building materials, drives the connecting rod to adjust the polishing angle through cooperation of the four sets of electric extension rods, drives the polishing machine to move through the slide block to realize adjustment of the polishing positions, and achieves excellent polishing effect and high efficiency.

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 belongs to the technical field of air conditioners, and provides a self-cleaning control method for an air conditioner. According to the self-cleaning control method for the air conditioner, the problem that an existing air conditioner cannot judge the timing of starting the self-cleaning mode is solved. The self-cleaning control method comprises the following steps that a fine particle numerical value is obtained; whether the self-cleaning mode is executed or not is judged according to the fine particle numerical value; specifically, whether the numerical value of the fine particles is larger than a set threshold value is judged; if the numerical value of the fine particles is larger than a set threshold value, the self-cleaning mode is executed; and if the numerical value of the fine particles is not larger than the set threshold value, the self-cleaning mode is not executed. According to the self-cleaning control method, by means of the control mode, the air conditioner can execute the self-cleaning mode under reasonable conditions, the situation that frequent self-cleaning of the air conditioner causes to energy waste is avoided, and the air quality is prevented from being poor due to the fact that the air conditioner is not self-cleaned for a long period of time to influence the health of people.

The invention relates to augmented reality (AR) equipment with functions of dust prevention and cleaning for engineering design. The AR equipment comprises a main body, a display screen, lenses, cameras, a dust prevention mechanism and a cleaning mechanism, wherein the dust prevention mechanism comprises a lifting assembly and a fastening assembly; the cleaning mechanism comprises a swing assemblyand a reciprocating assembly. The AR equipment with the functions of dust prevention and cleaning for engineering design is provided with the dust prevention mechanism, so that a dustproof cover canbe enabled to extend out from the interior of the main body for the use of an engineer, and the influence, caused by dust easily entering the respiratory tract, to a human body is prevented; furthermore, the dustproof cover can be stored in the dust prevention mechanism, thus being convenient to carry and place; the cleaning mechanism can be used for wiping water mist and dust on the surfaces of the lenses, thus enabling the lenses to be clean and clear and facilitating the cameras to acquiring the surrounding data; therefore, AR modeling is bettered performed, the effect of the engineering design is improved, and the practicality of the AR equipment is improved.

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 an outdoor tennis ball-collecting machine which comprises a machine body and a ball storage chamber, wherein a ball entering channel is connected with the upper end of the ball storage chamber; cleaning brushes are arranged at the two ends of the ball entering channel; moveable rods are connected with the two ends of the cleaning brushes; reset springs are sleeved on the moveable rods; a ball-absorbing chamber is arranged at the upper end of the ball entering channel; a ball-absorbing pipe is connected with the left end of the ball-absorbing chamber; a ball-absorbing cover is connected with the front end of the ball-absorbing pipe; a flow guide plate is arranged at the lower end of the ball storage chamber; the air vents are arranged at the two ends of the flow guide plate; an axial flow fan is arranged at the lower end of the flow guide plate; an air outlet is connected with the lower end of the axial flow fan; a rotating table is connected with the lower end of the machine body; a solar power generation panel is arranged at the upper end of the machine body; a storage battery is arranged at the lower end on the right side of the machine body; a push rod is connected with the middle part at the right end of the machine body; a controller is arranged at the upper end of the push rod. The outdoor tennis ball-collecting machine has the advantages of simple structure, novel design, high practicability and capabilities of realizing efficient ball absorption for tennis, preventing workers from picking up the balls by bending down and effectively cleaning the picked balls.

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.

This invention relates to thin black plaster comprising back-up material layer and plaster layer adhered on the back-up material layer. The black plaster thickness is 0.1-0.9mm, and its processing steps contains: 1) Process boiled plaster into plaster blank; 2) heating compress the plaster blank to thin piece whose thickness maintains between 0.1-0.9mm; 3) Cut the molded thin piece to some shape and package to obtain finished product. The thin black plaster equipment comprises delivery mechanism, at the front end of the delivery mechanism a temperature controlling and piece compressing device is arranged for heating and compress the plaster stuff; behind the temperature controlling and piece compressing device, a blank shaping device is arranged for strike the lamellar plaster stuff into wafer shape; a heating and compressing device is arranged behind the blank shaping device for compressing the plaster blank into flakes. The black plaster can be directly pasted on affected part without heating and can be pasted for many times. The shaping machine has simple structure and is convenient to handle; it achieves mechanization continuous production of black plaster molding.

The invention provides a shared lunch box system integrating delivering, collecting and cleaning functions. The system comprises a plurality of client terminals, a plurality of deliverer terminals, anordering server and a plurality of food storage cabinets; the plurality of client terminals are held by customers; the plurality of deliverer terminals are held by deliverers; the ordering server isin communication connection with the client terminals and the deliverer terminals; the plurality of food storage cabinets are distributed in a plurality of public areas, are used for storing, collecting, and cleaning lunch boxes, and are in communication connection with the ordering server; and each food storage cabinet has a unique identification address; Ordering and delivery processes are simple and direct and are in line with the rhythm of contemporary life; the lunch boxes are not disposable lunch boxes and are made of an environmentally-friendly material, and therefore, the problem of large-scale use of disposable packaging in the current food delivery industry can be solved, and resource conservation and environment protection can be facilitated; and the lunch boxes made of the environmentally-friendly material are safer in accommodating food, and the problem of the influence of the health of people caused by the blending of materials of disposable lunch boxes which are denatured under high temperature into food can be solved.

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 ventilation system of a ro-ro passenger ship cargo hold, which comprises a horizontal ventilation system, and is characterized by further comprising a lamination prevention ventilation system, wherein the lamination prevention ventilation system comprises a plurality of lamination prevention ventilation assemblies arranged in a length direction of the cargo hold sequentially; the lamination prevention ventilation assemblies comprise fans (1); air outlets of the fans (1) are communicated with air boxes (3); each air box (3) is communicated with four main spiral ducts (9) which extend upwards to the inferior of a top deck of the cargo hold, extend horizontally to the periphery, and then are communicated with a plurality of branch spiral ducts (10); the tail ends of the branch spiral ducts (10) horizontally face towards a bow or a stern, and then are connected with nozzles (5); the nozzles (5) are inclined downwards, and face towards the same direction; and the branch spiral ducts (10) are fixed below the top deck on the cargo hold.

The invention discloses a multifunctional natural appetizing health preserving seasoning sauce. The raw materials include: chili, garlic, ginger, spices and spleen-tonifying and constitution-consolidating traditional Chinese medicines, etc. The processing method includes: raw material selection, raw material treatment, spice volatile oil extraction, preparation of ''traditional Chinese medicine broad bean paste'', ''sauce paste'' and ''fermented soya bean chili'', sauce boiling, and mixing, etc. The invention also discloses a functional food. The seasoning sauce provided by the invention can be used directly as a seasoning and a cooking dish and be used for developing chain catering, and also can be used as a medicinal and edible dish going with rice. With the efficacy of benefiting qi, tonifying spleen and promoting appetite, strengthening the body resistance and consolidating constitution, eliminating fatigue, enhancing physique, preserving health and defying aging, the multifunctional natural appetizing health preserving seasoning sauce is suitable for the sub-health population and patients with inappetence or tastelessness, especially patients with poor appetite in poor health, postoperation rehabilitation and tumor radiotherapy and chemotherapy, can enhance appetite, help digestion, improve the quality-of-life of patients, increase people's immunity and help rehabilitation of physical power.

The invention discloses a human-movement-simulating ground cleaner. The human-movement-simulating ground cleaner comprises a box body, a box cover, garbage collection pans, a transmission device, a cranked lever type cleaning tool, fixed guide rails, roller brushes, large wheels and a steering wheel. The transmission device comprises a bevel gear mechanism, an incomplete gear mechanism and a crank-slider mechanism, wherein the incomplete gear mechanism is provided with a crank and a pin shaft. The cranked lever type cleaning tool is provided with a vertical rod and a horizontal rod, the vertical rod is provided with a slide groove, and the pin shaft of the transmission device is mounted in the slide groove. A slider is arranged at one end of the horizontal rod and mounted in the fixed guide rails. A dry sweeper or a wet mop can be mounted on the cranked lever type cleaning tool. When an operator pushes the handle on the box body, the large wheels roll forwards to enable an axle thereof to rotate, power is inputted therefrom, and the sweeper or the mop on the cranked lever type cleaning tool moves on the ground zigzag to start to clean the ground, so that human's sweeping or mopping movements can be simulated; meanwhile, the roller brushes brush dust and garbage into the garbage collection pans in a rolling manner.

The invention discloses a safe environmental-protection ore cleaning device. The safe environmental-protection ore cleaning device comprises a feeding pipe, a box, a water inlet pipe, a pressing device, a water storage tank, a water pumping pipe, an extension rod, a filter plate, an impeller, cleaning shafts, turntables, a discharge pipe, brushes, a timer and a rotating shaft; the feeding pipe isarranged at the top end of the box; the box is provided with a liquid level meter; the water storage box communicates with the box through the water inlet pipe; the pressing device is mounted on the water inlet pipe; the rotating shaft is arranged in the box; the impeller is mounted on the rotating shaft; multiple cleaning shafts are arranged on the inner wall of the box; the turntables are arranged on the cleaning shafts; the brushes are arranged on the surfaces of the turntables; the filter plate is arranged in the box; the bottom surface of the filter plate is connected with the bottom endof the box through the extension rod; one end of the water pumping pipe is connected with the water storage tank, and a water filter screen is arranged at the other end of the water pumping pipe; thedischarge pipe is arranged on the side wall of the box; and a ultraviolet ray lamp is arranged in the box. The safe environmental-protection ore cleaning device accelerates the cleaning speed, improves the working efficiency, saves resources, realizes disinfection and sterilization, prevents wastes, is simple in structure and convenient to use, and facilitates popularization.

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 belongs to the technical field of AP1000 nuclear power, and particularly relates to an AP1000 main steam pipeline welding method. In order to solve the problems that an air filling protection device is difficult to install and potential safety hazards exist in the good health of operators when a conventional air filling protection device is used for auxiliary welding of an AP1000 main steam pipeline, the AP1000 main steam pipeline welding method is disclosed. The welding method particularly includes the following several steps of S1, chamfering; S2, welding assembly; S3, weld preheating; S4, welded connection; and S5, postweld heat treatment. When the welding method is used for welding the AP1000 main steam pipeline, through adjustment matching of the groove dimensions and welding parameters, welded joints formed in the welding process can still achieve a continuous and uniform forming effect without the supporting action of backing gas, and therefore installation of the air filling protection device is omitted and the influence on the good health of the operators by protective gas is avoided.

The invention discloses a color-coated sheet wiping apparatus, comprising a base and a bracket which is arranged on the base, wherein a slide rail is arranged on the bracket; a slide block is arranged on the slide rail and connected with a support column; a wiping head composed of a clamping cylinder and a clamping finger is arranged on the support column; and the slide block is driven by a movable cylinder. A wiping head is driven by the movable cylinder to wipe back and forth at the surface of a color plate according to preset force, time and frequency, so that manual wiping work is completely replaced; the color-coated sheet wiping apparatus is uniform in wiping force, and high in wiping result accuracy, so as to prevent a person from contacting a wiping solvent.

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 discloses a production line used for wood board processing. The production line comprises a sawing device, a drying device, a gumming device, a pressing device, a sanding device and a supporting frame. The production line used for wood board processing is complete in function, a stream-lined line production mode is adopted, and sawing, drying, automatic gumming, automatic pressing and automatic sanding of wood can be achieved.

The invention relates to the field of honey processing, in particular to a constant-temperature lifting and stirring device for honey processing, which includes a stirrer and a support frame supporting the stirrer. One end of the top of the stirrer is provided with a honey feeding port, and the center of the top of the stirrer is fixed with a nut. The stirrer is equipped with a stirring shaft whose outer wall matches the nut. The stirring shaft is driven up and down by a servo motor. The stirring shaft is a cavity structure. Cavity structure, the surface of the stirring blade is provided with a circular hole; the side wall of the agitator is provided with an interlayer, the inner spiral of the interlayer is provided with resistance wire and heat transfer oil, and a temperature controller is also installed in the interlayer; the bottom of the agitator is provided with a honey outlet . The invention has the advantages of simple structure, novel and ingenious design, the stirring shaft can be raised and lowered to promote the uniformity of stirring, the temperature in the processing process is constant, the sterilization is uniform and efficient, the quality of honey can be improved, and the practicability is strong.

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.