54results about How to "Prevent staying" patented technology

The invention discloses a cast-in-place light-weight foamed concrete construction technique. The technique comprises the following steps: earlier stage preparation; cement mortar solution preparation: mixing cement and fly ash in a mixing hopper; foaming agent water solution preparation: weighing a foaming agent, adding the foaming agent and water into a mixing hopper of a hydraulic foaming machine, uniformly mixing to form the foaming agent water solution; foamed concrete preparation: gradually adding the foaming agent water solution prepared in the step 2 into the cement mortar solution by a conveyer belt, mixing for 1-3 minutes to form the foamed concrete; discharging the mortar and delivering the foamed concrete; casting the foamed concrete; and curing. The foamed concrete can not easily collapse in the in-place casting process, and has the advantages of high construction speed and low construction cost.

The invention discloses a laser cutting machine. The laser cutting machine comprises a base, a box with an opening formed in the top, a clamp, a workpiece feed mechanism, a workpiece discharge mechanism, a cutting head used for cutting workpieces, a first lifting mechanism, a supporting frame arranged on the upper surface of the base and located over the box and smoke pumping pipes used for pumping smoke dust in the box. The first lifting mechanism is in sliding connection with the supporting frame, a first sliding rail is arranged on the upper surface of the base, and the box is in sliding connection with the first sliding rail. The clamp is fixed in the box. The first lifting mechanism is in sliding connection with the supporting frame and is close to the rear end of the first sliding rail. The cutting head is fixedly connected with a lifting shaft of the first lifting mechanism. Butt-joint holes in butt joint with the smoke pumping pipes penetrate through the rear side wall of the box, and the smoke pumping pipes are parallel to the first sliding rail. The laser cutting machine has the advantages that cutting efficiency is high; the smoke pumping pipes adsorb the smoke dust in acentralized manner, and the smoke dust is prevented from being emitted to workshops; and the position between a supporting table and a fixed arm can be adjusted, and therefore the workpieces with different radii can be cut.

The invention discloses a high-strength sheet metal machining working platform, and belongs to the field of sheet metal machining. The high-strength sheet metal machining working platform comprises abase, a pair of mounting plates are fixedly connected to the middle of the top of the base, a top plate is fixedly connected to the tops of the mounting plates, a sliding groove is formed in the middle of the bottom of the top plate, and a screw rod is mounted in the sliding groove through a ball bearing; the surface of the screw rod is in threaded connection with a sliding block, the sliding block is slidably connected into the sliding groove, the bottom of the sliding block is fixedly connected with a telescopic air cylinder, the bottom of the telescopic air cylinder is fixedly connected with a cutting mechanism, the back face of the top plate is fixedly connected with a fixing plate, the bottom of the fixing plate is fixedly connected with a motor, the output end of the motor is fixedlyconnected with the screw rod, and a cutting groove is formed in the middle of the base. According to the high-strength sheet metal machining working platform, angle adjustment can be carried out according to needs, meanwhile, cutting, discharging and conveying are convenient, the high-strength sheet metal machining working platform can adapt to high-strength cutting work, cutting is stable and accurate, functionality is high, and the high-strength sheet metal machining working platform is worthy of wide application and popularization.

An organic light-emitting diode (OLED) display according to an exemplary embodiment of the present invention includes a substrate, a thin film transistor formed on the substrate, a pixel electrode formed on the thin film transistor and electrically connected to the thin film transistor, a pixel definition layer formed on the pixel electrode so as to define a pixel region, an emission layer formed on the pixel electrode and contacting the pixel electrode in the pixel region, and an interlayer formed on the pixel definition layer and contacting part of the emission layer. One side of the interlayer has an uneven shape so that a surface area of the interlayer is increased.

The invention discloses a cast-in-place light-weight foamed concrete construction technique. The technique comprises the following steps: earlier stage preparation; cement mortar solution preparation: mixing cement and fly ash in a mixing hopper; foaming agent water solution preparation: weighing a foaming agent, adding the foaming agent and water into a mixing hopper of a hydraulic foaming machine, uniformly mixing to form the foaming agent water solution; foamed concrete preparation: gradually adding the foaming agent water solution prepared in the step 2 into the cement mortar solution by a conveyer belt, mixing for 1-3 minutes to form the foamed concrete; discharging the mortar and delivering the foamed concrete; casting the foamed concrete; and curing. The foamed concrete can not easily collapse in the in-place casting process, and has the advantages of high construction speed and low construction cost.

The invention relates to powdering equipment, in particular to medicinal material powdering equipment for pharmacy. The medicinal material powdering equipment for pharmacy improves the productivity of medicinal powder, reduces manual operation and ensures the quality of the medicinal powder. The medicinal material powdering equipment for pharmacy comprises four first supporting seats, a loading frame, a protection frame, a discharging frame, a smashing mechanism and a power mechanism, and the loading frame is installed among the upper portions of the four first supporting seats. The protection frame is mounted at the top of the loading frame. The discharging frame is mounted at the top of the protection frame. The smashing mechanism is arranged at the top of the protection frame. The power mechanism is arranged in the protection frame. The power mechanism and the smashing mechanism are arranged, the power mechanism is matched with the smashing mechanism, the power mechanism drives the smashing mechanism to operate, then the effect of pulverizing the medicinal materials is achieved, and manual pulverizing operation is not needed.

The present invention provides a method for preparing (meth)acrylate by esterification reaction of reactants containing (meth)acrylic acid and alcohol in the presence of a catalyst, the preparation method for (meth)acrylate is characterized in that a hydrazine compound or derivative thereof is put into an esterification reactor; and (meth)acrylate prepared by the same. The present invention effectively prevents impurities generated by aldehyde that is contained in the raw material (meth)acrylic acid from remaining in a production apparatus and the catalyst, so that the process for producing (meth)acrylate proceeds smoothly.

A welding method and a welding structure of metal members are provided to prevent the zinc vapor generated during arc welding from remaining in the molten metal of the core wire and the base material (steel plate), thereby suppressing the generation of pores and pits in the welded portion. There are provided a first step of bending adjacent portions of first and second metal members(11,12) in the same direction and forming a flange overlapping part(15) where respective flange portions(13,14) of the first and second metal members are overlapped and contact each other, a second step of starting to perform arc welding from a tip of the flange overlapping part(15), and a third step of continuing to perform the arc welding until molten metal(19) of a core wire and a base material reaches an opposite-side face of the flange overlapping part(15) and zinc gas generated is emitted from a side opposite to an arc-welding performance side of the flange overlapping part.

The invention relates to a material conveying machine, in particular to a material conveying machine for food processing. The material conveying machine can adjust the feeding height without damagingfood and ensure the integrity of food. The material conveying machine for food processing comprises bases arranged on two sides, a rack rotatably mounted on the base on one side, a lifting mechanism arranged between the base on the other side and the rack, and a conveying mechanism mounted on the rack. According to the material conveying machine for food processing, the height of the left side ofthe rack can be controlled through the lifting mechanism, so that the material conveying machine for food processing can adapt to the height of required material conveying under different conditions;a conveying belt can be cleaned in the conveying process, and food residues are prevented from remaining on the conveying belt; and according to the material conveying machine for food processing, a large amount of dust can be prevented from falling on the conveying belt and food during conveying and normal time.

The invention discloses a polishing method for treating roughness and smoothness of a metal structural surface. The polishing method comprises the following steps that firstly, a workpiece is placed, specifically, the workpiece needing to be polished is placed on a conveying device, the workpiece is carried through the conveying device, the workpiece is moved to a designated position, and the workpiece is machined; secondly, roughness is detected, and the roughness of the metal surface needing to be machined is detected through a metal roughness detector; and thirdly, the workpiece is conveyed to a grinding area through the conveying device, the two sides of the workpiece are clamped through a limiting device and a clamping structure, and the workpiece is prevented from shaking in the grinding process. According to the roughness detection device is arranged, the surface of the workpiece is checked before grinding, the position of the surface roughness is confirmed, the grinding device can conveniently grind the position which does not meet the specification, the grinding speed is increased, the grinding quality is improved, then the surface of the workpiece is checked again after machining is completed, and whether polishing meets the specified requirements is determined.

The invention discloses a livestock excrement cleaning device. The livestock excrement cleaning device comprises a carriage, wherein carriage wheels are rotatably arranged at the lower end of the carriage, and a handrail is arranged at the right end of the carriage; an arc-shaped plate is arranged in the carriage, the inner wall of the arc-shaped plate is composed of a left segment cambered surface and a right segment cambered surface, and inclined plates are correspondingly arranged at the left end and the right end of the arc-shaped plate; and an opening is formed in the bottom of the arc-shaped plate, a extracting piece is arranged in the opening, a stepping motor is arranged in the front of the carriage, a driving gear is connected to an output shaft of the stepping motor, and a transmission mechanism is connected to the left end of the driving gear. The livestock excrement cleaning device has the advantages that excrement can be cleaned and collected through pushing the handrail,at the same time, the carriage can be cleaned effectively, and the residual excrement can be prevented from remaining in the carriage, and the efficiency is improved.

The invention discloses camellia oleifera shell breaking and separating equipment. The camellia oleifera shell breaking and separating equipment comprises a shell breaking part and a shell separatingpart, wherein the shell separating part is located at the downstream of the shell breaking part; and the discharging end of the shell separating part corresponds with the feeding end of the shell breaking part. According to the camellia oleifera shell breaking and separating equipment disclosed by the invention, a scratching assembly is arranged at a feeding opening of a shell breaking cavity, andis used for scratching crusts of camellia oleifera fruits, subsequent shell breaking of the camellia oleifera fruits is facilitated, and the shell breaking efficiency is high; the height of a knife blade for scratching can be regulated, and the knife blade can be used for scratching the shells of the camellia oleifera fruits of different diameters, so that the applicability is good; and in the shell separating part, separating rollers on a separating bottom disk relatively rotate to pull the shells towards the lower part of the separating bottom disk, so that the separation of fruits from theshells is realized, the structure is simple, and the function is practical; and the separating bottom disk can swing in a left and right manner, and is used for redistributing the positions of the fruits and the shells on the separating bottom disk to prevent the fruits from staying at the bottom of a material tank, and continuous separation of the shells from the shells is facilitated.

The invention discloses a roll-over motion control system of an automatic roll-over frame in the technical field of environmental sanitary equipment. A single-piston double-rod type double-action hydraulic cylinder is utilized for controlling an upper chain wheel and a lower chain wheel to rotate, and therefore a roll-over shaft is driven to roll over; the roll-over shaft drives a clamping mechanism and a trash can to jointly roll over; motion of an upper piston rod and motion of a lower piston rod are controlled by inductors capable of inducing the position, and therefore the motion of the upper piston rod and the motion of the lower piston rod are more accurate; and the roll-over shaft is controlled to do roll-over motion in a chain wheel transmission manner, and therefore the roll-over motion and the roll-over position of the roll-over shaft are more precise and stable. The three inductors can precisely control the original point position, the cleaning point position and the tilt water pouring point position of a garbage can, and particularly, the tilt water pouring point position is precisely controlled, after the garbage can is maintained on the tilt water pouring point position for a certain time, flowing water can be fully drained, cleaning liquid is prevented from being left in the garbage can, and the cleaning effect is prevented from being affected.

The invention discloses a clothes storage reminding method and an intelligent clothes hanger. The method comprises the following steps: acquiring the weight of clothes on the intelligent clothes hanger; acquiring an ambient temperature; determining a preset clothes weight range corresponding to the ambient temperature; comparing the weight of the clothes on the intelligent clothes hanger with the preset clothes weight range corresponding to the ambient temperature; and when the weight of clothes on the intelligent clothes hanger is not in the preset clothes weight range corresponding to the ambient temperature, sending out first prompt information, wherein the first prompt information is used for reminding a user of storing the clothes. Through the scheme, the clothes can be timely stored by a user, the clothes unused in a current season are prevented from being left in a wardrobe, the space of the wardrobe occupied by the clothes unused in the current season is further reduced, and the time for the user to select the clothes is saved.

The invention relates to the field of geological exploration, in particular to a multifunctional geological exploration drill bit. The drill bit comprises a drill bit body, a sealing plug, a mountingmechanism, a connecting mechanism, a compression mechanism, a screw rod, a reset mechanism, a limiting mechanism and limiting blocks; the screw rod is mounted on the top of the drill bit body and is in threaded connection with the compression mechanism in the mounting mechanism, the screw rod moves to make the compression mechanism slide in the mounting mechanism, and gas in the mounting mechanismis compressed, so that the gas pushes the limiting mechanism to slide downward in the mounting mechanism, the limiting mechanism slides into the connecting mechanism on the top face of the drill bitbody, and the limiting mechanism is clamped to the connecting mechanism. During use, the mounting mechanism drives the drill bit body to rotate, and the limiting mechanism fixes the drill bit body, sothat the position between the drill bit body and the mounting mechanism is fixed, and the drill bit body is prevented from being reserved in the underground. The sealing plug mounted on the top of the compression mechanism is taken out, the compression mechanism is opened, and the gas in the mounting mechanism is discharged, so that the limiting mechanism is separated from the drill bit body, andconvenience is provided for people to replace the drill bit body.

The invention relates to a manufacturing method of a circuit board with combination of a flexible circuit board and a hard circuit board. The method comprises the following steps that: a flexible circuit board including a bending area is provided, wherein the flexible circuit board has a conductive line that is covered by a covering film; besides, a through hole is arranged on the covering film and a portion of the conductive line is exposed from the through hole, wherein the portion of the conductive line is in the bending area; a strippable film is provided, wherein the shape of the strippable film is corresponded to that of the bending area, and a groove that penetrates a mucilage layer and is corresponded to the through hole is formed in the strippable film; the strippable film is attached to the bending area, the mucilage layer is contacted with the covering film in the bending area, and the through hole is correspondedly communicated with the groove; a film and a copper foil are provided, wherein an opening that is corresponded to the bending area is formed in the film; a copper coil substrate, the film and the flexible circuit board are successively stacked and stitched, wherein the opening is corresponded to the bending area; the copper coil is manufactured to form an external layer conductive line and the material of the corresponded copper coil in the bending area is removed, so that the strippable film is exposed. And the strippable film is removed.

The invention relates to the technical field of building engineering, and discloses a building board arc surface grinding device. The building board arc surface grinding device comprises a box body, wherein the inner wall of the box body is rotationally connected with a fixing rod, a fixing plate is welded to the rear end of the fixing rod, a working mechanism is arranged on the inner wall of the box body, a fixing block is welded to the top of the fixing plate, a fixing mechanism is arranged at the rear part of the fixing block, the rear part of the fixing plate is movably connected with a board material, the inner wall of the box body is rotationally connected with a transmission rod, the inner wall of the box body is fixedly connected with a scraping plate through a spring, and the rear part of the box body is connected with a motor through a bolt. According to the building board arc surface grinding device, the transmission rod is driven to rotate through the motor, the transmission rod drives an upper sliding block to move through a spiral groove, the upper sliding block drives a grinding machine to move and grind the board material, then the board material is driven to swing up and down in a reciprocating mode through a rotating disc, so that the arc surface can be automatically ground by being in contact with the grinding machine during swinging, and the quality and the efficiency of the product are improved.

The invention discloses a corn harvester smashing device with an automatic induction control function. The corn harvester smashing device with the automatic induction control function comprises a smashing box, wherein a first motor is arranged on the right side of the smashing box; the first motor is connected with a driving rotating shaft; the driving rotating shaft is connected with a driven rotating shaft through a steering assembly; smashing blades are arranged on the driven rotating shaft; a sliding hopper is arranged in the smashing box; two sets of smashing rollers are arranged on the lower portion of the sliding hopper; elastic telescopic rods are connected in the smashing box and connected with a material receiving plate; an induction assembly is arranged between the material receiving plate and the smashing box; an air cylinder penetrates through the left side wall of the smashing box; and a push rod is arranged on the right side of the air cylinder and connected with a cleaning assembly. According to the corn harvester smashing device, straws are preliminarily smashed through the smashing blades and then are thoroughly smashed through the smashing rollers, the machine can be prevented from being stuck, and meanwhile, the smashed straws fall on the material receiving plate; when a certain amount of materials reach on the material receiving plate, the air cylinder is started, and the air cylinder pushes the cleaning assembly to move through the push rod; and cleaning cotton pushes out the smashed straws on the material receiving plate from a discharge port.

The invention discloses a cleaning device for a concrete transportation pipeline. The device comprises a supporting shell, a transmission cavity with a leftward opening is formed in the supporting shell, an air pump is fixedly arranged on the right end wall of the transmission cavity, an air cylinder is arranged at the left end of the air pump in a power connection mode, a right shell is fixedly connected to the left end of the air cylinder, a power cavity is formed in the right shell, a connecting cavity is formed in the left side of the power cavity, a transmission shaft is rotationally arranged between the power cavity and the connecting cavity, a transmission shaft hole is formed in the transmission shaft, and the left end of the transmission shaft extends into the connecting cavity. According to the device, the device can clean the concrete transportation pipeline, and the situation that after last time of use, residual solidified concrete is left in the pipeline, and in the nexttime of use, due to scouring of liquefied concrete and erosion of water, the solidified concrete on a pipe wall is brought into the liquefied concrete, the quality of the liquefied concrete is reduced, the strength of the liquefied concrete is reduced after solidification, and a certain error is caused is avoided.

The invention relates to a water purifying device based on solar distillation. The water purifying device comprises a water absorption pump, a distillation component and an ultraviolet sterilization component, wherein the distillation component comprises a water container, multiple collecting lenses, a condensation component and a water collector; a water outlet of the water absorption pump is connected with the water container through a pipeline; a filter screen is arranged on the pipeline by facing an exit of the water container; the water collector is positioned below the condensation component; and the ultraviolet sterilization component is arranged above the water collector. With the device, based on the solar-distillation water purification, the functions of large-particle filtration and ultraviolet sterilization are added so as to realize multiple functions of a solar water purifier; before distillation, large-particle sundries are filtered by the filter screen to prevent leaving of too many sundries in the water container; and after distillation, sterilization and disinfection are performed by an ultraviolet irradiation lamp, the purified water meets the needs of people; and therefore, the device is very convenient to use.

The invention discloses a household garbage treating and sorting device and a disinfection method, and belongs to the technical field of garbage sorting treatment. The household garbage treating, sorting and disinfecting device comprises a sorting box, wherein the right side of the top of the sorting box communicates with a feeding hopper, the bottom of the right side of the sorting box communicates with a water outlet pipe, and the top of the right side of the inner wall of the sorting box is fixedly connected with a filter plate; the left side of the filter plate is fixedly connected with aseparation vertical plate; the bottom of the separation vertical plate is fixedly connected with a separation transverse plate; two sides of the separation transverse plate are fixedly connected withtwo sides of the inner wall of the sorting box; a movable screen barrel is arranged at the left side of the separation transverse plate, and the bottom of the movable screen barrel is in contact withthe top of the separation transverse plate; the left side of the top of the sorting box is movably connected with a box cover through a rotating shaft; and a first disinfection lamp is fixedly installed at the bottom of the box cover. According to the household garbage treating and sorting device, the problems that most of existing household garbage is directly poured into a garbage can in treatment, and cannot be subjected to dry and wet sorting, the interior of the garbage can does not have the disinfection function, and germs in the garbage can grow extremely easily are solved.

The invention discloses a novel straight cylinder type electronic cigarette switch. The switch comprises a cigarette body, and a battery is movably mounted at the middle lower end in the cigarette body; a bottom cover is movably mounted at the bottom end of the cigarette body; grooves are formed in the two sides of the bottom end of the outer portion of the cigarette body; movable handles are movably mounted at the bottom ends of the interiors of the grooves through springback hinges; mounting grooves are formed in the middles of one sides of the outer parts of each movable handles; small lamptubes are movably mounted in the mounting grooves; a silica gel sleeve is movably mounted on one side of the outer part of each movable handle and is positioned outside the corresponding mounting groove; the small lamp tubes are connected with a battery through wires, trigger grooves are formed in the top ends of one sides of the interiors of the grooves, second trigger blocks are fixedly installed in the middles of one sides of the interiors of the trigger grooves, and trigger rods are movably installed at the upper ends of the sides, close to the trigger grooves, of the movable handles. Thefilter baffle is movably mounted at the upper end in the mouthpiece, so that foreign matters can be prevented from entering the mouthpiece to cause blockage, and the smoking experience is reduced.

The invention discloses a breathable plastic track which comprises a water absorbing layer, an isolation layer, a base layer and a surface layer from bottom to top. The base layer is a composite structure formed by a polyurethane binder and elastic rubber particles. The surface layer is a concave-convex structure formed by soft rubber and the polyurethane binder and is provided with track lines. The track lines are provided with fluorescent layers. The isolation layer is used for isolating the base layer from the water absorbing layer and is provided with a plurality of uneven exhaust passages. When in contact with the breathable plastic track, the water flows into the water absorbing layer through the water-passing holes of the insulation layer so as to be prevented from staying in the base layer for a long time. Thus, the water is prevented from being unable to evaporate in the rainy weather and thus causes the track to bulge. In the high-temperature weather, the water in the water absorbing layer is evenly distributed, evaporates together, and has a fast evaporation speed. In addition, the track lines are made of fluorescent materials, are convenient to see in the dark or at night, and are attractive in appearance.

The invention relates to the technical field of food processing, and discloses a pomegranate seed taking device. The seed taking device comprises a box body; the right side of the box body communicates with a feeding pipe; the top of the box body is provided with a cutting mechanism; the right side of the box body is provided with a discharging mechanism and a processing mechanism; and the processing mechanism is located above the discharging mechanism. According to the seed taking device, through cooperative operation of the cutting mechanism, the discharging mechanism and the processing mechanism, pomegranate seeds can be automatically taken out, so that the labor intensity of workers is reduced; the pomegranates can be rotated all the time to be knocked during seed taking, so that the pomegranate seeds can be taken out more thoroughly, and waste is reduced; and moreover, the cutting mechanism can be used for washing the pomegranate moving path while cutting off the pomegranate, so that the situation that the pomegranate is stuck and cannot continue to slide to the processing mechanism due to the sticky of the pomegranate juice after drying to affect normal work of the device and popularization and use of the device is prevented.

The invention relates to the field of geological exploration, in particular to a multifunctional geological exploration drill bit. The drill bit comprises a drill bit body, a sealing plug, a mountingmechanism, a connecting mechanism, a compression mechanism, a screw rod, a reset mechanism, a limiting mechanism and limiting blocks; the screw rod is mounted on the top of the drill bit body and is in threaded connection with the compression mechanism in the mounting mechanism, the screw rod moves to make the compression mechanism slide in the mounting mechanism, and gas in the mounting mechanismis compressed, so that the gas pushes the limiting mechanism to slide downward in the mounting mechanism, the limiting mechanism slides into the connecting mechanism on the top face of the drill bitbody, and the limiting mechanism is clamped to the connecting mechanism. During use, the mounting mechanism drives the drill bit body to rotate, and the limiting mechanism fixes the drill bit body, sothat the position between the drill bit body and the mounting mechanism is fixed, and the drill bit body is prevented from being reserved in the underground. The sealing plug mounted on the top of the compression mechanism is taken out, the compression mechanism is opened, and the gas in the mounting mechanism is discharged, so that the limiting mechanism is separated from the drill bit body, andconvenience is provided for people to replace the drill bit body.

The invention discloses a cleaning device for a concrete transportation pipeline. The device comprises a supporting shell, a transmission cavity with a leftward opening is formed in the supporting shell, an air pump is fixedly arranged on the right end wall of the transmission cavity, an air cylinder is arranged at the left end of the air pump in a power connection mode, a right shell is fixedly connected to the left end of the air cylinder, a power cavity is formed in the right shell, a connecting cavity is formed in the left side of the power cavity, a transmission shaft is rotationally arranged between the power cavity and the connecting cavity, a transmission shaft hole is formed in the transmission shaft, and the left end of the transmission shaft extends into the connecting cavity. According to the device, the device can clean the concrete transportation pipeline, and the situation that after last time of use, residual solidified concrete is left in the pipeline, and in the nexttime of use, due to scouring of liquefied concrete and erosion of water, the solidified concrete on a pipe wall is brought into the liquefied concrete, the quality of the liquefied concrete is reduced, the strength of the liquefied concrete is reduced after solidification, and a certain error is caused is avoided.

A cell culture device comprises: a base; a turntable attached to the base; a container holding member attached to the turntable and configured to hold a cell culture container; and a driving mechanism configured to rotationally drive the turntable about a first axis and to rotationally drive the container holding member about a second axis, in which a liquid port connected to a liquid tube is provided on an outer circumferential surface of the cell culture container, in which a first predetermined portion of the liquid tube is positioned on the container holding member by a first positioning member, and a second predetermined portion of the liquid tube is positioned on the container holding member by a second positioning member. Wherein a second predetermined portion of the liquid tube is positioned on the turntable by a second positioning member, and wherein the first positioning member is rotatably attached to the container holding member.

The present invention relates to a zero-emission circulating flush toilet. The zero-emission circulating flush toilet is characterized in that contaminants in excrement and urine transferred from a toilet bowl are detected at an early stage, and when an abnormality occurs, the abnormality is reported to a manager.

The invention discloses a skin preparation knife capable of collecting hair. The skin preparation knife comprises a handle, a hair shaving part and a hair collecting part, the hair shaving part is fixedly mounted at the upper end of the handle, and the hair collecting part is detachably mounted outside the handle in a sleeving mode through a limiting component. The skin preparation knife is convenient to mount, blade replacing is convenient, the phenomenon of cross infection between patients can be effectively avoided, using safety is good, during using, skin of the patients is not scratched,the function of collecting the hair is achieved, the shaved hair can be prevented from being left on a hospital bed or an operating table, the skin preparation knife is provided with two hair shavingfaces, thus it can be ensured that the hair at the operating part can be shaved smoothly so as to ensure smooth operation, through a prepared protective layer, the anti-corrosion, anti-bacterial, anti-slip and anti-aging performance of the handle can be effectively improved, especially importantly, the surface of the handle can be prevented from being infected with a large number of bacteria, andthe infection probability of the patients when the hair at the operating part is shaved can be effectively decreased.