204results about How to "Avoid affecting your health" patented technology

The invention provides an automobile gear end surface polishing device, and relates to the technical field of automobile gear polishing. The automobile gear end surface polishing device comprises a working table, standing columns are fixedly installed on both sides of the top of the working table, and motor mounting blocks are fixedly installed on both sides of the inner wall of each standing column. According to the automobile gear end surface polishing device, through arrangement of telescopic motors, threaded rods, telescopic blocks, sliding rods, a strip-shaped sliding groove and a cross plate, a polishing device body on the bottom of the cross plate can vertically move between the two standing columns under driving of the telescopic motors; through arrangement of the cross plate, the sliding groove and supports, the polishing device body on the bottom of the cross plate can transversely move on the bottom of the cross plate; through arrangement of a polishing table, a rotating rod and a clamping base, a gear to be polished which is fixed to the top of the clamping base in a clamped mode can conduct circular motion on the bottom of a polishing motor under driving of the rotating rod. In sum, by means of the automobile gear end surface polishing device, the effect that adjustment is convenient is achieved, it is convenient for people to polish the end surface of the gear from different angles, and the quality of the gear after polished is better.

The invention relates to a mobile dust removal and harm reduction device suitable for tunnel construction and a dust removal and harm reduction method. The device includes a walking device and a waterspraying system, a dust suction system, a water solution harm reduction treatment system and an electronic control system which are arranged on the walking device, the water spraying system, the dustsuction system and the walking device are in long-distance connection with a controller in the hand of an operator, and the controller includes a remote control device and a display device. Accordingto the technical scheme of the device, the mode that the water spraying system and the dust suction system are combined is adopted to remove dust in a tunnel, and by adding the water solution harm reduction treatment system, pollutants and poisonous and harmful gases collected by the dust suction system are filtered to discharge a clean gas. The whole device is simple in structure, the dust removal and harm reduction efficiency is high, rapid dust removal and harm reduction of the tunnel face can be ensured, and meanwhile, and it is avoided that the body health is affected since the operatoris in close contact with the dust.

The invention discloses an alarm method, a device and equipment. The method comprises following steps: obtaining physiological parameters of users within the pre-set time range prior to pre-set reminding time; judging whether users are in first pre-set sleeping states based on physiological parameters; alarming users many times at intervals with first reminding intensity if users are in first pre-set sleeping states and preventing users entering deep sleep states by keeping users in first pre-set sleeping states; and alarming users with second reminding intensity when the current time of a terminal is equal to the reminding time and users are in first pre-set sleeping state and not deep sleep state. The alarm method, the device and equipment have following beneficial effects: when the current time of the terminal is equal to the pre-set alarming time, users in the first pre-set sleep states are awakened; and compared with the conventional method of directly awakening users in deep sleep states, the method is capable of reducing discomfort of users and avoiding bad effect upon health of users.

The invention relates to an ultraviolet disinfection device with an adjusting function used for sewage treatment. The device comprises a sewage pool, a water inlet pipe, a water discharge pipe, a controller, a top plate, a moving mechanism, a plurality of disinfecting mechanisms and two supporting rods; the moving mechanism comprises a first motor, a rotating disc, a drive component and a plurality of moving components; each moving component comprises one driven bevel gear, one lead screw, one moving block and two supporting units; and each disinfecting mechanism comprises one second motor, one disc, one rotating shaft, one bottom disc, one power component and a plurality of ultraviolet lamps. The ultraviolet disinfection device with the regulating function used for the sewage treatment provided by the invention can adjust an inclination degree of each ultraviolet lamp tube through one corresponding disinfection mechanism to make the ultraviolet lamp tubes immersed into sewage to prevent ultraviolet light from irradiating to the outside to affect people health, and the moving mechanism can drive the disinfection mechanisms to rotate to adjust the axial distance between the disinfection mechanism and the rotating disc, so that the ultraviolet radiation range is expanded, full sterilization disinfection of the sewage is realized, and the practicability of the equipment is improved.

The invention provides an indoor unit of an air conditioner. The indoor unit of the air conditioner comprises a shell, an air flow channel formed in the shell, and an air wheel in the air flow channel. The air wheel is a cross-flow air wheel. The indoor unit of the air conditioner further comprises a cleaning device. The cleaning device comprises a plurality of nozzles. The nozzles are arranged in the axis direction of the cross-flow air wheel and spray cleaning fluid to the cross-flow air wheel. The nozzles extend into the air flow channel from the exterior of the air flow channel. As the nozzles extending into the air flow channel from the exterior of the air flow channel spray the cleaning fluid to the cross-flow air wheel, under the rotation action of the cross-flow air wheel, the cleaning fluid sprayed to the cross-flow air wheel is thrown out by the cross-flow air wheel, the cross-flow air wheel is cleaned, and as the inner wall of the air flow channel is cleaned by the cleaning fluid thrown out by the cross-flow air wheel, harmful microorganisms are prevented from being bred when the interior of the air conditioner is not cleaned for a long time, then supplied air of the air conditioner is fresher, and the physical health of people cannot be affected.

The invention discloses a stone crushing and screening machine for mining engineering. A third motor is fixedly arranged in a first motor box, and the output shaft of the third motor penetrates through the top of a gearbox and extends to the interior of the gearbox to be fixedly provided with first gears. The invention relates to the technical field of engineering machinery. According to the stonecrushing and screening machine for the mine engineering, a first roller shaft and a second roller shaft are obliquely arranged, so that large stones which cannot pass through the first roller shaft and the second roller shaft cannot be moved to the front end of the first roller shaft and the front end of the second roller shaft; the second motor drives a first belt wheel to rotate, a belt is usedfor driving a second belt wheel to rotate, and a threaded sleeve is driven to rotate, so that a screw rod drives the first motor box and the gearbox to move downwards; and the third motor drives thefirst gears to rotate, and second gears which are meshed with each other are used for driving the drill bit to rotate at a high speed, so that the large stones are crushed, and the crushed small stones can be crushed through the first roller shaft and the second roller shaft.

The invention discloses a building decoration plate grinding device which comprises a base. The top end of the base is fixedly connected with a top plate through four supporting rods. The middle of the top end of the top plate is fixedly connected with a dust collector. A dust collection hood is arranged in the middle of the bottom end of the top plate. The two sides of the dust collection hood are fixedly connected with electric air cylinders. The middle of the top end of the base is connected with a rotary table through a bearing. Grinding equipment tables are in sliding connection with thebase through two second guide rods. Each grinding equipment table is in sliding connection with a moving seat. A second stepping motor is arranged at one end of the inner top of each grinding equipment table. The moving seats are in transmission connection with the second stepping motors through ball screws. The top end of each moving seat is fixedly connected with a motor. The output end of eachmotor is fixedly connected with a grinding disc. According to the building decoration plate grinding device, through the arrangement of the overall structure, building plates are conveniently locatedand machined, manpower is saved, and the grinding effect is improved; and through the arrangement of the dust collection hood and the dust collector, machining dust can be absorbed.

The invention provides an indoor unit of an air conditioner which comprises a shell, a heat exchanger, an air current channel, a through-flow wind wheel arranged in the air current channel and an air outlet formed in the shell. The indoor unit further comprises a cleaning device, wherein the cleaning device comprises a plurality of spray heads located in the air current channel and arranged in the axis direction of the through-flow wind wheel and the spray heads are arranged between the through-flow wind wheel and the heat exchanger and spray cleaning fluids to the air inlet side of the through-flow wind wheel; alternatively, the spray heads are arranged between the through-flow wind wheel and the air outlet and spray the cleaning fluids to the air outlet side of the through-flow wind wheel. Due to the fact that the spray heads are arranged in the air current channel, the spray heads spray the cleaning fluids to the air inlet side of the through-flow wind wheel or the air outlet side of the through-flow wind wheel, under the rotation function of the through-flow wind wheel, the through-flow wind wheel is cleaned, the inner wall of the air current channel is cleaned through the cleaning fluids thrown out through the through-flow wind wheel, the air conditioner can produce cleaner air and influences on health of a human body are avoided.

The invention discloses a multifunctional desk for students. The desk comprises a desk board, a bookrack, a paper placing frame, a red light-transmitting shielding plate and thermal insulation cylinders; supporting plates are symmetrically fixed to the two sides of the bottom of the desk board; the bookrack is fixed to the top of the desk board, a lead screw pair is arranged inside the bookrack, and a brush is arranged on the lead screw pair; the desk board is made of a transparent material, the paper placing frame which is also made of the transparent material is arranged in the center belowthe desk board, and the red light-transmitting shielding plate is arranged between the desk board and the paper placing frame; the thermal insulation cylinders are symmetrically fixed to the oppositesurfaces of the supporting plates at the two sides and are internally provided with electric heating plates, and through holes are formed in both opposite surfaces of the thermal insulation cylindersat the two sides. By means of the multifunctional desk for the students, accumulated dust at the tops of books can be effectively cleaned away, and the cleaning effect is good; meanwhile, the studentscan be assisted in memorizing words; the desk also has a heating function, and can provide a comfortable learning environment for the students in winter.

The invention relates to a screening machine, in particular to a soybean leaf ash separation screening machine. The soybean leaf ash separation screening machine can conveniently screen soybeans to prevent ejection of the soybeans to cause wastes, and can blow away dust to prevent suction into people bodies to influence health. The soybean leaf ash separation screening machine comprises a frame body, support legs, an inclined plate, a support plate, a screening frame, a net plate, a first support rod and a first arc rod; the support legs are in symmetric fixed connection to the left and rightsides of the outer bottom of the frame body; and an opening is formed in the lower part of the right side of the frame body. Soybeans are poured into the screening frame, and a first pull ring and a second pull ring are pulled to adjust the shaking angle of the screening frame to prevent ejection of the soybeans during screening to cause wastes; and through a removing device, the dust mixed in thescreened soybeans can be blown away to prevent suction into the bodies of people to influence health due to floating around of the dust, and the influence on subsequent treatment of the soybeans by the dust also can be prevented.

The invention discloses a printing and dyeing device used for textile processing. The printing and dyeing device comprises a bottom plate, supporting plates are fixedly installed on the two sides on the upper surface of the bottom plate, a top plate is fixedly installed on the tops of the supporting plates, a dye tank is arranged between the two supporting plates, and sliding grooves are formed inthe inner walls of the two supporting plates respectively. The sliding grooves are in sliding connection with the two ends of the dye tank through sliders in the sliding grooves respectively, and twomutually parallel dyeing rollers are arranged in the dye tank. According to the printing and dyeing device, before a textile is dyed, scraps are first removed, so that the textile is easier to color,the appearance of the textile is prevented from being affected by too many scraps, and the situation that the textile is incompletely colored due to scrap adhesion can be avoided. Redundant dyes on the surface of the textile can be extruded, the textile quality is prevented from being affected by non-uniform dyeing thickness, the water on the surface of the textile is quickly removed, dye solidification can be accelerated, therefore, the coloring time can be saved, and the improvement of the working efficiency is facilitated.

The invention relates to a 3D printer with spray nozzle clearing and purifying functions. The 3D printer comprises a main body, a material box and a pedestal, wherein a printing mechanism, a clearingmechanism and a purifying mechanism are arranged in the main body; the purifying mechanism comprises a purifying room, a swing assembly and a reciprocating assembly; the swing assembly comprises a connecting rod and two swing units; each swing unit comprises a supporting shaft, a swing rod, a suction nozzle and a sleeve; the clearing mechanism comprises a movable assembly, a supporting plate, a rotary assembly and a clearing assembly; and the rotary assembly comprises a first motor and a rotary disc. According to the 3D printer with the spray nozzle clearing and purifying functions disclosed by the invention, the clearing mechanism can realize the function of automatically clearing a printing head, and reduces working burden of people; and the purifying mechanism can purify toxic substances released by the printer, and the toxic substances are prevented from being absorbed by a human body to affect body health, so that safety of the 3D printer is improved.

The invention relates to the technical field of PCB boards, and discloses a maintenance workbench for PCB boards. Connected with a fixing device, the fixing device includes a fixing rod, the top of the fixing rod is fixedly connected with the axis at the bottom of the clamping block, the middle part of the clamping block is provided with a groove, and the inside of the groove is flexibly connected with a PCB board, and the clamping block The top threaded connection has the first bolt. The maintenance workbench for the PCB board can achieve the effect of fixing the PCB board conveniently and quickly by setting the fixing device and turning the first bolt, so that the PCB board is not easy to shake during the maintenance process, and the adjustment is achieved by making the collar slide on the slide rail. The position of the clamping block is fixed by turning the second bolt to achieve the effect of fixing the position of the collar on the slide rail, so that it is suitable for PCB boards of different sizes, so that the part of the PCB board that needs to be repaired is located in the area that is easy for the operator to operate.

The invention discloses wall surface polishing equipment for decoration. The wall surface polishing equipment comprises a main body and a shell fixedly arranged at the left end of the main body. The shell is internally provided with a slot with the opening facing leftwards. The top end face of the main body is fixedly provided with a holding handle. The right end face of the main body is providedwith vertical feet in a vertically symmetrical manner, a push cushion fixedly connected with the right end face of the main body is arranged between the two vertical feet, and the bottom of the shellis detachably provided with a dust collection device. The wall surface polishing equipment for decoration is simple in structure and low in manufacturing cost and maintenance cost, the automatic polishing and smoothening operation of the rough and uneven wall surface can be realized, the polishing and smoothening efficiency is improved, the labor intensity of workers is lowered, the situation thatthe physical heath of the workers is influenced due to inhalation of a great amount of dust is avoided, and the polishing flatness and stability of the wall surface are improved; and the whole deviceis compact in structure and reliable in operation.

The invention discloses a preparation method of reaction sintered silicon carbide cantilever paddle, and belongs to the technical field of silicon carbide cantilever paddle. The preparation method comprises the steps as follows: preparing an extrusion forming mould of a silicon carbide cantilever paddle fixing region; extruding a pipe blank in the fixing region and segmentally cutting the pipe blank; drying the cut pipe blanks in the fixing region; preparing ramming forming moulds of a silicon carbide cantilever paddle transition region and a load region; preparing integral blank bodies in the transition region and the load region; drying the integral blank bodies in the transition region and the load region; trimming biscuits; bonding the pipe blanks in the fixing region with the integral blank bodies in the transition region and the load region to finish preparation of a blank body of the silicon carbide cantilever paddle; sintering. Compared with a conventional slip casting process, for the method disclosed by the invention, the blank body forming rate is increased and the preparation cost is saved through using a bonding combination structure; the process is simple, the finished product rate is high, and the prepared silicon carbide cantilever paddle is high in strength, pore-free, good in heat conductivity, resistant to acid and base corrosion, pollution-free at a high temperature, deformation-free, large in load capacity and long in service life.

The invention provides an automatic flushing closestool. The automatic flushing closestool comprises a closestool base and a water tank arranged on the closestool base, wherein a closestool cushion and a closestool cover are rotationally arranged on the closestool base, the closestool cover is a transparent closestool cover, a sensor is arranged on a front side plate of the water tank, a water inlet part, an automatic water falling part and a foaming device are arranged in the water tank, and the foaming device comprises an air pump and a foaming box; the sensor is electrically connected witha power supply, is connected with the air pump through an air pump output line, and is connected with the automatic water falling part through an automatic water falling part output line. With the adoption of the technical scheme provided by the invention, the automatic flushing closestool has the advantages that the closestool cover is arranged to be the transparent closestool cover, meanwhile, ahole is formed in the front side plate of the water tank of the closestool for mounting the sensor, so that when people relieve the bowels, the sensor on the closestool can receive a signal indicating that people are relieving the bowels, after the people relieve the bowels and get up and leave, the sensor transmits a signal indicating that people finish relieving the bowels to the automatic water falling part, and then automatic flushing is realized.

The invention belongs to the technical field of garbage transportation, and particularly relates to a garbage transfer trolley with a deodorization function. The garbage transfer trolley with the deodorization function comprises a transport vehicle, a garbage storage box, a turning plate, a first rotating shaft, a worm gear, a worm, a first motor, a flexible sealing part, a lifting fixing part anda sealing part. According to the garbage transfer trolley with the deodorization function, a garbage can is clamped and fixed through the lifting fixing part in a garbage lifting process, a fixing lifting part rotates and drives the garbage can to rotate, then the sealing part is gradually opened, the garbage can extrudes the flexible sealing part, then garbage in the garbage can enters the garbage storage box through a garbage dumping opening, then odor is prevented from escaping when the garbage is dumped, then the air and environment are prevented from being polluted, when the garbage is dumped, a lifting fixing part drives the garbage can to gradually leave the flexible sealing part, then the sealing part is gradually closed, the odor is prevented from overflowing, and meanwhile, theodor is prevented from overflowing in the garbage transfer process.

The invention relates to a chuck with a dust exhausting function. The chuck comprises a base and a rotating shell located in the base and rotating around itself, one end of the rotating shell is provided with a dog plate, an air exhaust pipe is arranged in the rotating shell, one end of the air exhaust pipe extends to one side of a clamping station of a jaw, the other end of the air exhaust pipe is connected with a joint, and an exhaust fan which is in communication is formed by the joint and the air exhaust pipe. Cutting dust generated in the laser cutting process of pipe fittings can be exhausted out through the air exhaust pipe, and influences generated by the fact that an operator inhales dust exhaust gas on the health of the body are avoided; the exhausted dust can be collected in a concentrated manner through a collecting box to be treated and is prevented from being directly discharged to the atmosphere and polluting the environment; meanwhile, the conditions that the dust enters the chuck and damages a driving mechanism, consequently the accuracy of the chuck is reduced, and even the chuck breaks down are avoided; and the conditions that the dust adheres to a laser cuttinghead and directly affects the cutting precision of a workpiece, and consequently scrapping of the workpiece is caused, even the laser cutting head is directly damaged, and the production cost is increased are avoided.

The invention relates to a two-ingredient polyurethane adhesive as well as a preparation method and application thereof. The adhesive is prepared from an ingredient A and an ingredient B; after the ingredient A and the ingredient B are uniformly mixed according to a mass ratio of (2 to 20):1, the two-ingredient polyurethane adhesive is obtained, wherein the ingredient A is prepared from polyetherpolyol, polymer polyol, crosslinking agents, foam stabilizing agents, inert silicon oil, tertiary amine gel type catalysts, tertiary amine foaming type catalysts, foaming agents and special silicon oil; the ingredient B is polyisocyanates. When being applied to the vehicle filter core preparation, the two-ingredient polyurethane has excellent performance such as bonding tightness, no dry crack, vibration resistance, high temperature resistance, oil resistance, oxidation resistance, stable chemical property and environment protection; the requirements of the industry standard of the adhesive for vehicle filter core sealing can be further met.

The invention provides an environmental-friendly dustbin room, and relates to the field of environmental-friendly equipment. The environmental-friendly dustbin room comprises an outer frame, wherein grooves are formed in four corners of the bottom part of the outer frame; a disinfectant water tank is fixedly arranged on the left side of the top part of the outer frame; a top plate is fixedly arranged on the right side of the top part of the outer frame; a solar panel is fixedly arranged on the top part of the top plate; a wind power generator is fixedly arranged on the top part of the top plate and located on the right side of the solar panel; a storage battery is fixedly arranged on the bottom part of an inner wall of the top plate; and a first baffle plate is fixedly arranged on the bottom part of an inner wall of the outer frame. According to the environmental-friendly dustbin room, through the cooperative use of the solar panel and the wind power generator, power is supplied, and the effects on saving energy and protecting environment are achieved; and through the cooperative use of an ultraviolet sterilization and disinfection lamp and the disinfectant water tank, the effectson disinfecting and sterilizing are achieved, and the occurrence of the phenomenon that virus bacteria produced by garbage stacking affect the body health of people is avoided.

The invention discloses an indoor decoration seam repairing device capable of surveying wall surface cracks, and belongs to the technical field of indoor decoration. The indoor decoration seam repairing device comprises a bottom plate, wherein a T-shaped groove is formed in the upper surface of the bottom plate, a T-shaped block is arranged in the T-shaped groove, and the upper surface of the T-shaped block is fixedly connected with an adjusting mechanism. According to the indoor decoration seam repairing device, a cleaning mechanism is arranged, a second motor can drive two brushes to rotate when working, so that broken dust on a wall can be cleaned, and the wall surface can be conveniently repaired subsequently; a scraping rod can scrape off caked lime on the wall when rotating, when hard broken slag on the wall cannot be effectively cleaned, two shifting rods are shifted to get close to each other, at the moment, two positioning cylinders get close to each other and drive two ejector rods to get close to each other, at the moment, the ejector rods can eject the inclined surface of a trapezoidal block, the trapezoidal block drives a scraper to move through a supporting plate, and the scraper can extend out of the outer side of the scraping rod to achieve the effect of removing impurities.

The invention relates to a meal delivering robot having a food fresh-keeping function and convenient to clean. The meal delivering robot comprises a main body and arms; the arms are further provided with disassembly mechanisms; the main body further comprises a fresh-keeping chamber and a fresh-keeping mechanism arranged in the fresh-keeping chamber; the disassembly mechanisms comprise first motors, driving plates, fixing plates and disassembly components; and the fresh-keeping mechanism comprises a storage component and a sealing component. According to the meal delivering robot having the food fresh-keeping function and convenient to clean, foods are stored in the fresh-keeping chamber through the fresh-keeping mechanism and prevented from being bitten by mosquitoes in the robot meal delivering process, thus freshness of the foods is improved, and the situation that the health of customers is affected is avoided; and in addition, the fresh-keeping chamber is fixed to the arms of therobot through the disassembly mechanisms, when a tray needs to be taken down for cleaning, the disassembly mechanisms are started, the fresh-keeping chamber can be directly taken down without dismantling parts, thus the time and labor are saved, and convenience is brought for cleaning of the tray.

The invention specifically relates to an automatic smoke discharge moxibustion bed with a mobile phone bracket. The moxibustion bed comprises a bed board and a moxibustion box, and is characterized in the bed board is fixedly arranged on supporting legs at four corners, wherein the bed board is provided with a moxibustion hole corresponding to the human body part; the moxibustion box with an opening facing towards the moxibustion hole is fixedly arranged below the bed board; a smoke discharger controlled by a control box is arranged in the moxibustion box; the bed board is provided with a storage box; the mobile phone bracket is fixedly arranged in the storage box. Compared with the prior art, the moxibustion bed has the advantages that the functions of the moxibustion bed are enriched, and a moxibustion user can put a mobile phone by using the mobile phone bracket on the moxibustion bed during moxibustion. Besides, the moxibustion bed has an automatic smoke discharge function; when the concentration of moxibustion smoke reaches a certain value, the smoke discharger is automatically started, and excess moxibustion smoke is directly discharged outdoors through the smoke discharger and a smoke discharge hose, so that the health of people is prevented from being affected by over-high concentration of smoke indoors.

The invention discloses a building waste wood block environment-friendly crushing device which comprises a box body. A fixed plate is arranged at the top end of the box body. The box body comprises acutting device, a crushing device, a collection device and a water circulating device. The cutting device comprises two first roller wheels, a first motor, a second motor and cutting wheels. The two first roller wheels are sleeved with multiple first conveying belts, and the first conveying belts transversely penetrate into the box body to the top of the crushing device. The multiple cutting wheels are arranged, spray heads are arranged at the tops of the cutting wheels, and the spray heads are connected with water pipes. The crushing device comprises a crusher and a third motor. An air cylinder cooperating with the crusher is arranged on the side wall of the top end in the fixed plate. The output end of the air cylinder is fixedly connected with a crushing hammer. The third motor is arranged on the right side of the top end in the box body. The output end of the third motor is connected with cutting fan blades cooperating with the crusher. The building waste wood block environment-friendly crushing device can achieve dust-free crushing of wood blocks and can protect the environment and health of people in time.

The invention discloses an underground dust removal device and an operation method. The underground dust removal device comprises a box body (1), a dust suction fan (2) is installed on a left side panel of the box body (1), an exhaust gas emission grid is arranged on the upper side of a right side panel, and a filtering cleaning device is arranged in the box body. The operation method comprises the steps that the dust suction fan is turned on, the dust is sucked and sent to the filtering cleaning device; a water supply pipe is opened, water is supplied to a water curtain and a cleaning nozzleof the filtering cleaning device, the water curtain is formed on the upper part of a filtering net, and a water film is formed on a filtering grid; when the dust penetrates through the filtering net and the water curtain and the water curtain and the water film formed by the cleaning nozzle under the drive of the wind, the dust is intercepted by the filtering net and the water film and adheres tothe filtering net and then is flushed to the bottom of the box by the water flow formed by the water curtain; and a sewage discharging pipe is opened to discharge the sewage out of the box body. The problems that location limitation is relatively large and flexibility is insufficient in the prior art, and the safety of the site and the health of employees are affected due to the fact that a largeamount of foam or water mist is generated are solved.

The invention relates to a destroying device, in particular to a destroying device for used syringes. The destroying device for used syringes can crush the syringe and collect the syringe and a needlehead, and is convenient to operate and high in working efficiency. The destroying device for used syringes comprises a box body, an L-shaped clamping plate is connected to the outer side of an opening of the box body in a clamped mode, a through hole is formed in the side, close to the box body, of the L-shaped clamping plate, and the through hole is communicated with the interior of the box body. An injector is placed into the two special-shaped pressing plates, the discharging end of the needle cylinder is clamped into the clamping plate, the u-shaped plate is pulled to move leftwards, theneedle cylinder can move leftwards to be separated from the needle head, the separated needle cylinder and needle head fall into the left portion and the right portion in the box body respectively tobe collected, operation is convenient, and the working efficiency is high.

The invention discloses a rapid tunnel lining concrete dismounting method. The rapid tunnel lining concrete dismounting method comprises the following steps that an automatic ring cutting trolley is manufactured; the automatic ring cutting trolley enters an existing disease tunnel in a contraction state, and the automatic ring cutting trolley is in an unfolded state after arrival; a saw web is arranged on a wall sawing machine, the wall sawing machine is started to conduct deep cutting and ring-direction cutting, and the cutting depth cannot be smaller than the thickness of the tunnel lining concrete; after cutting is finished, the automatic ring cutting trolley restores to the contraction state, and the saw web on the wall sawing machine is dismounted; the automatic ring cutting table moves forwards, and longitudinal cutting of the next position is conducted at the interval of one section of distance in the tunnel mileage direction; and after complete cutting is finished, dismountingof the tunnel lining concrete is conducted. The wall sawing machine is applied to an arc track of the walking track, three motors are combined to make the saw web rotate, go deep and walk along the arc track correspondingly, rapid tunnel lining concrete dismounting is achieved, the rapid tunnel lining concrete dismounting method is initiated, and wide application and popularization prospects are achieved.

The invention discloses a head structure of an embroidery machine of a towel. The head structure comprises a housing, and a needle bar and a small presser bar both mounted in the housing; the needle bar and the small presser bar are arranged at an interval; the needle bar and the small presser bar both are capable of moving up and down and connected with driving mechanisms I and III, respectively; the needle bar is also capable of rotating and connected with the rotating driving mechanism; the driving mechanism I comprises a cam I connected with a power shaft, a rocking arm I connected with the cam I, a rocking bar I connected with the rocking arm I and a returning spring I; the rocking bar I is connected with the needle rod; and the middle of the rocking arm I is hinged in the housing. As the needle bar, the large presser bar and the small presser bar of the head structure of the embroidery machine are separated from one another without sleeving one another, the mechanical structure is simplified, the fault rate of the machine is reduced and the service life of the machine is prolonged. Furthermore, according to the head structure of the embroidery machine, the return spring is adopted for returning so that the surface of the rocking arm can be always against the surface of the cam without harsh takh sound, and therefore, the noise of the machine is reduced and the influence on the body health of workers is avoided; and in short, the head structure is more humanized.

The invention relates to the field of food processing, in particularly to flavor puffed food as well as a preparation device and a preparation technology thereof. The flavor puffed food takes noodlesas a main material, has the special flavor of noodles and can meet demands of people for diversity of snack types. After the noodles burst after continuous heating, lipoxidase in the noodles is deactivated, the earthy smell of the noodles can be removed, lipids and phenols in the noodles can decomposed through heating into volatile aromatic substances, the burst noodles become porous and fluffy due to quick water vapor evaporation, adsorption of the substances and aromatic components in spices is facilitated, so that the flavor puffed food has the characteristics of strong aroma and lasting aftertaste while reserving the advantages of crispness and good taste of common puffed food and thus has broad market prospects.