325results about How to "Rinse clean" patented technology

The invention belongs to the field of experimental sample processing technologies, relates to insect antenna sample processing methods and particularly relates to a transmission electron microscope processing method for insect antenna samples. The method sequentially comprises the following steps of: (A) preparing fixing liquid; (B) preparing various embedding agents; (C) dissecting, fixing and rinsing; (D) dewatering and soaking; and (E) gathering, so as to obtain the samples. The method has the advantages that the problems of difficulty in fixing liquid soaking and insufficiency in embedding agent soaking during the process of insect antenna transmission processing are solved, finally-obtained sample slices can be relatively flat, the phenomena of sample wrinkling, damaging and losing are greatly reduced, internal structures of the sample slices are all effectively fixed, and subcellular structures are clearly visible.

The invention discloses a clothes washing water recycling device, a water-saving clothes washing control method and a washing method of the clothes washing water recycling device. The clothes washing water recycling device comprises a washing cylinder, a circulation water pipeline, a drainage pipeline and an ultrafiltration membrane assembly. The water inlet end of the circulation water pipeline is communicated with a water outlet of the washing cylinder, and the water outlet end of the circulation water pipeline is communicated with a water inlet of the washing cylinder. The ultrafiltration membrane assembly is provided with a water inlet end, a first water outlet end and a second water outlet end. The ultrafiltration membrane assembly is connected to the circulation water pipeline through the water inlet end and the first water outlet end, and a gas conveying device is connected to the water inlet of the ultrafiltration membrane assembly. The circulation water pipeline is further provided with a liquid conveying device, and the drainage pipeline is communicated with the second water outlet end of the ultrafiltration membrane assembly. When much dirt is retained on an ultrafiltration membrane, gas washing is performed on the ultrafiltration membrane, and then water is used for washing. Compared with the manner that only water washing is used, washing water can be saved, and cleaning is better and more thorough.

The invention discloses a water-saving, non-blocking, clean and sanitary automatic toilet which uses the human gravity switching force. A toilet cover is automatically closed and opened, so the toilet can flush automatically after being used. A lower opening of the toilet is separated in a piston or ball valve manner so as to circulate with the air in a lower pipeline. Compared with the sealing effect of the traditional water lock, the toilet has excellent effect and saves water. The toilet piston can move downwards (upwards) and rotate; an upper opening, a lower opening and a passage turning of the toilet are provided with fixing spray nozzles; a spray shaft pipe of the toilet is provided with a spray nozzle which is capable of rotating along the shaft; the water of the toliet is added by the tap water or is finished by pedalling; the spraying process is finished by recycling an elastic glue pipe; the pressure of cleaning stream of the toilet is greater than that of the traditional toilet; the toilet saves water; and the spray nozzles of the toilet has a sleeve structure. The toilet can be cleaned by the water steam; and a steam pot is provided with a heating passage which is communicated with the toilet ring. The structure of the connection passage ball valve of the toilet is controlled by the spraying pressure. The inner wall of the upper part of the toilet is provided with a camera.

The invention discloses an automatic interior and exterior cleaning device for an environmental sanitation trash can. The device comprises a cubic frame formed by steel columns, wherein guide rail are arranged on the two sides of the interior of the frame, hanging buckets are arranged on the guide rails in a matched mode, a lifting driving mechanism is arranged around each guide rail and used for lifting the corresponding hanging bucket, a power device is arranged at the tail end of each guide rail and connected with the corresponding lifting driving mechanism, a washing device used for cleaning the interior and exterior of the trash can is arranged above each guide rail and is driven by a washing driving mechanism connected to the corresponding power device, a flushing device is arranged on the periphery of each washing device, and a hook used for fixing the trash can is arranged on each hanging bucket. By the adoption of the device, the environmental sanitation trash can can be cleaned conveniently, quickly and efficiently, manpower and material resources are saved, environmental friendliness is realized, and secondary pollution is avoided.

The invention relates to the technical field of medical nursing instruments, and provides a lie-in-bed defecation nursing instrument. The lie-in-bed defecation nursing instrument comprises a main machine and a lying defecation device connected with the main machine. The main machine is provided with a negative pressure machine, a sewage barrel, a washing system and a control device. The negative pressure machine is connected with the sewage barrel, and the lying defecation device comprises an elastic wearing part worn on the buttocks of the human body. The wearing part is provided with an excrement containing port corresponding to the anus of the human body, the outer side of the wearing part is provided with an excrement collecting hopper corresponding to the excrement containing port, the excrement collecting hopper is provided with a flushing hole, the sewage barrel and the washing system are respectively connected with the excrement collecting hopper, the excrement collecting hopper is provided with an excrement sensor, and the excrement sensor and the washing system are respectively and electrically connected with a control device. The lying defecation device further comprises an expanding mechanism which is arranged on the outer side of the wearing part and can enable the part, located at the excrement containing port, of the wearing part to elastically move towards the two sides to enable the anus of the human body to be opened, and when the anus is opened, a patient can defecate more smoothly, and washing is cleaner.

The present invention provides a cleaning agent for removing the solder flux and method for cleaning the solder flux which exhibit the excellent cleaning property even at the time of cleaning a lead-free soldering flux, a high-melting-point solder flux or the like and, at the same time, exhibits the excellent rinsing property in the rinsing using an alcoholic solvent in a next step. Accordingly, the present invention provides a cleaning agent for removing the solder flux which sets a content of benzyl alcohol to a value which falls within a range of 70 to 99.9 weight % and a content of amino alcohol to a value which falls within a range of 0.1 to 30 weight % when a content of a glycol compound is below 1 weight % with respect to a total amount of the cleaning agent for removing the solder flux, and sets a content of benzyl alcohol to a value which falls within a range of 15 to 99 weight % and a content of amino alcohol to a value which falls within a range of 0.1 to 30 weight % when a content of the glycol compound falls within a range of 1 to 40 weight % with respect to a total amount of the cleaning agent for removing the solder flux. The cleaning agent for removing the solder flux is used for cleaning the lead-free solder flux and the high-melting-point solder flux or the like.

The invention relates to an auto beauty device, in particular to a fast automobile flushing device for auto beauty. The technical problem of providing an auto beauty fast automobile flushing device which is capable of flushing an automobile chassis, wheels, fender linings and other dirty parts in an all-around mode, low in labor intensity, capable of flushing the parts thoroughly and high in working efficiency and saves time is to be solved. In order to solve the technical problem, the fast automobile flushing device for auto beauty comprises a first water pipe, a water inlet connector, a second water pipe, first spray heads, a grid, a water column and the like; the first water pipe is horizontally arranged on the front side face of a water tank, the water inlet connector is arranged at the front side of the left part of the first water pipe, and the grid is arranged in the middle of the top of the water tank. According to the fast automobile flushing device for auto beauty, the automobile chassis, the wheels, the fender linings and other dirty parts are flushed in the all-around mode with the multiple spray heads.

The invention discloses an automatic vehicle washing device. The automatic vehicle washing device structurally comprises a bottom plate, racks and a control box. The bottom plate is a cavity shaped like a Chinese character 'hui', the interior of a bottom plate frame is divided into multiple drainage plate containing cavities through transverse square pipes and longitudinal square pipes, a circle of baffle is arranged at the bottom of each drainage plate containing cavity, and drainage plates are clamped to the baffles. The two corresponding sides of the bottom plate are perpendicularly connected with the racks, the racks are cavities and are communicated with inner cavities of the transverse square pipes and the longitudinal square pipes, multiple water spray holes are formed in transverse pipes of the racks, and multiple through holes are formed in the transverse square pipes. One end of the bottom plate is connected with a water inflow pipe, the free end of the water inflow pipe is connected with a water pump in the control box through a hose, and the control box controls the water pump to be opened and closed through signals via a remote control unit. The automatic vehicle washing device automatically washes an engineering vehicle, manual operation is not needed, the washed vehicle does not need to be parked, time is short, washing is complete, and consumed water is saved.

The invention discloses an air-entrapping flusher of a micro-irrigation sandstone filter, comprising a filtering tank and a sandstone filter material filled in the filtering tank. A clapboard of a header tank is arranged below the sandstone filter material at the bottom of the filtering tank. A filter cap is arranged on the clapboard of the header tank and two air washing rings are arranged in the periphery and the middle of the filter cap. Air holes are evenly distributed at the up direction of the air washing rings in an interlaced way. The two air washing rings are connected with an air inlet pipe that runs through upwards along the inner wall of a tank body from a sand feeding port in a seal way and is communicated with an air compressor. The invention utilizes the combined action of water and air to cause a whole filter material layer in the tank body to produce the strong stirring, which can effectively wash impurities adhering to the sandstone cleanly with the action of impact of air and water flow and friction force caused by the collision of sandstones. With convenient operation and good backwashing effect, the invention saves the cleaning water used for washing.

The invention discloses a water-soluble biodegradable cleaning agent and a cleaning application method of the water-soluble biodegradable cleaning agent. The water-soluble biodegradable cleaning agent comprises, by weight, 1%-15% of organic acid, 5%-20% of a surface active agent, 0.5%-1% of a stabilizer and 78%-79.5% of water. According to the cleaning application method of the water-soluble biodegradable cleaning agent, cleaning liquid containing the water-soluble biodegradable cleaning agent is used for ultrasonic cleaning of parts to be cleaned. According to the water-soluble biodegradable cleaning agent and the cleaning application method of the water-soluble biodegradable cleaning agent, the non-toxic food-grade biodegradable non-strong acid is adopted, the wetting performance, the permeability, the emulsibility, the dispersity, the capacity-increasing performance and the like of the water-soluble biodegradable cleaning agent are utilized, corresponding ultrasonic cleaning equipment is adopted in cooperation, under the mutual synergistic interaction of chemistry and machines, rust, oxides, polishing paste and all kinds of oil stains attached to the surfaces of metal, plastics and ceramics are washed away in a one-off manner; and in this way, traditional acid pickling technologies and the cleaning concept that oil removal, wax removal and oxide removal are executed separately are broken through, the cleaning process is shortened, time and energy are saved, cost is reduced, the safety of the environment and the safety of operators are guaranteed, and the effect of environment-friendly, efficient, energy-saving and safe enterprise production is achieved in real sense.

A rinsing tank for rinsing with ultra clean liquid comprises a rinsing chamber confined by an enclosure equipped at the bottom part with a diffusing device with a perforated base plate connected to a first pressurized cleaning liquid supply system, and with an overflow spout at the upper part. The periphery of the perforated base plate of the diffusing device is equipped with a plurality of projection nozzles or injectors connected to a second pressurized liquid supply system. The rising flow coming from the injectors causes a downward circulation of liquid designed to remove the contaminants and particles present at the surface of the substrates. The hydraulic piston effect generated by the first supply system of the base plate forces the rinsing liquid upwards towards the overflow spout. The tank may be used for rinsing of silicon, quartz, germanium, glass, etc. substrates commonly used in the semi-conductors, micro-systems and flat screen industries.

A drive device for erosion tools, having a drive shaft, an electrode holder connected to the drive shaft, an axial drive which works on the drive shaft, a rotational drive which works on the drive shaft as a direct drive in a contactless manner, and a radial bearing. The radial bearing is constructed as a ball track.

The invention discloses a multifunctional electric cleaning vehicle which comprises a mobile vehicle body, wherein a ground cleaning device and a high pressure washing device are arranged on the mobile vehicle body; the high pressure washing device comprises a high pressure pump, a special motor for driving the high pressure pump and a water tank; a starting storage battery is connected with the motor; a water inlet of the high pressure pump is communicated with a water tank through a soft pipe; and a water outlet of the high pressure pump is connected with a high pressure spray gun through aconnecting rubber pipe. With the adoption of the multifunctional electric cleaning vehicle provided by the scheme of the invention, different treatment modes are adopted for different garbage according to the difference of the garbage ingredients; with the ground cleaning device, the cleaning work of ordinary ground garbage can be realized; the high pressure washing device is used for washing stubborn garbage, adlets or greasy dirt at streets in residential areas, corners, walls, lamp-post and the like; and the multifunctional electric cleaning vehicle can clean completely and the time and labor are saved.

The invention discloses a dish-washing machine assembled with a cradle-type plate rack. The dish-washing machine comprises an inner container, the plate rack, an actuating unit and a jetting mechanism, and is characterized in that the plate rack matched with the inner container is a cradle-type plate rack, and a spray pipe in the jetting mechanism is arranged at the periphery of the interior of the inner container; a central spray post is arranged in the inner container, the central spray post is rotatably connected and communicated with the spray water of the jetting mechanism and is connected with the actuating unit, the two ends of the central spray post are respectively connected with a connecting rod, the connecting rod at one end is connected with an outer-ring gear, and the connecting rod at the other end is connecting with a fixed ring; the outer-ring gear is connected with the actuating unit, and hanging handles at the two ends of the cradle-type plate rack are connected with the connecting rods; and the cradle-type plate rack is a cradle-type dish rack or a cradle-type chopsticks canister. The invention has the advantages that the capacity of the plate rack is large, the quantity of tableware washed by one time is more, no dead angle exists in the washing process, and the tableware can be washed cleanlier.

The invention belongs to the technical field of toilet bowls, and relates to a low-pressure flushing system for an intelligent toilet bowl. The low-pressure flushing system comprises a close-stool with a water tank, a water inlet component and a water outlet component are mounted in the water tank, a flushing tank is arranged at the upper edge of the close-stool, an outlet of the flushing tank is positioned on the inner surface of the upper edge of the close-stool, a water inlet of the flushing tank is positioned in the water tank or on the rear outer surface of the close-stool, a water pump is mounted in the water tank, a water outlet of the water pump is connected with a flushing sprayer, the flushing sprayer is positioned in the outlet of the flushing tank at the upper edge of the close-stool, a water inlet of the water pump is communicated with an inner cavity of the water tank through a guide pipe or connected with a guide pipe which can be externally connected with a water source, or the water outlet of the water pump is connected with the water inlet of the flushing tank, and a flushing port is formed in the outlet of the flushing tank. The low-pressure flushing system has the advantages that tap water or low-pressure water in the water tank is pressurized by the water pump and then performs thorough high-pressure flushing on the inner wall of the close-stool, and the low-pressure flushing system is applicable to high-grade, medium-grade and low-grade toilet bowls.

The invention relates to the technical field of toilets and provides a toilet. The toilet includes a sewage pipe, the inlet end of the sewage pipe communicates with the sewage outlet of the bucket body, and the outlet end of the sewage pipe is accommodated in the sewer and can be turned upside down. When the toilet is flushed, the outlet end of the sewage pipe can be turned downwards, so that the flushing water and excrement can be more easily poured into the sewer, which not only has high flushing efficiency, requires less flushing water, and flushes more cleanly , It is not easy to have residual excrement; after the toilet is flushed, the outlet end of the sewage pipe can be turned upside down, and the water seal can be formed by continuing to inject clean water, so as to isolate the bad smell.

The invention discloses an areca-nut granulator with the cleaning and drying integrated functions. The areca-nut granulator comprises a cleaning box, a first turnover device, a cleaning cover, water pipes, a water valve, a three-way pipe, a drying box, a supporting plate and a machine box; a feed port is formed in the left side of the cleaning box; a second chain is arranged on the outer wall side of a rotating barrel, and the rotating barrel communicates with the lower right part of the cleaning box through a sealing door; a third motor is fixed on the supporting plate; a track rod is fixed on the lower part of the interior of the machine box; hydraulic telescopic columns are fixed under sliding blocks; a discharge port is formed in the right side of the machine box; and a water outlet is formed in the lower left part of the cleaning box. The areca-nut granulator with the cleaning and drying integrated functions has the cleaning and drying integrated functions, areca-nuts can be cleaned and dried before the areca-nuts are granulated, and therefore the degree of cleanness of the areca-nuts can be guaranteed, the production efficiency of the areca-nuts can be improved, and the production quality of the areca-nuts can be further improved.

The invention particularly relates to a full-automatic water-saving buttocks-splash-proof squatting and sitting dual-purpose toilet WC pan which comprises a water tank, a urinal, a flushing pipeline and a blowdown pipeline. The rear of the water tank is directly communicated with a running water pipe, the urinal is a squat toilet urinal, the flushing pipeline comprises a flushing water ring, a flushing water pipe and a spraying water pipe, and the blowdown pipeline comprises an S-shaped blowdown pipe. The urinal is provided with a cushion, a casing is arranged around the urinal, two side portions of the casing serve as pedals, the front end of the cushion is supported on a front baffle of the urinal, the rear end of the cushion is hinged to the casing at the rear of the urinal through a rotating shaft, a bottom wall of the urinal is inclined from front to rear downwards, a blowdown opening is arranged at the rear end of the urinal to be communicated with the S-shaped blowdown pipe, the flushing water ring surrounds the urinal, flushing water holes are evenly formed in the upper portion of the flushing water ring, and the flushing water pipe and the spraying water pipe are led out of the water tank, the other end of the flushing water pipe is communicated with the flushing water ring, the other end of the spraying water pipe is respectively communicated with a first spraying port and a second spraying port, a check valve is arranged at the position of a blowdown outlet of the S-shaped blowdown pipe, and an infrared sensor control switch is installed between the flushing water pipe and the spraying water pipe. The full-automatic water-saving buttocks-splash-proof squatting and sitting dual-purpose toilet WC pan is wide in applied range, integrates squatting and sitting, conforms to the Chinese's use characteristics, performs flushing automatically, is excellent in performance, saves water, performs flushing cleanly and cannot blocked easily.

The invention relates to a dish washing machine capable of conducting soaking. The dish washing machine capable of conducting soaking comprises a box body, a dish rack, a water spraying mechanism and a dish washing mechanism, wherein the dish rack, the water spraying mechanism and the dish washing mechanism are all arranged in the box body; the box body is of a hollow structure and is provided with a first containing cavity and a second containing cavity, the first containing cavity is communicated with the second containing cavity, and the box body is provided with a water filling port and a water outlet; the water spraying mechanism comprises a spray head, a first water inlet pipe and a second water inlet pipe; the spray head is connected with the water filling port through the first water inlet pipe and is contained in the first containing cavity; the second water inlet pipe is communicated with the first water inlet pipe and is communicated with the second containing cavity to recycle water in the second containing cavity; the dish rack can move in the direction from the bottom to the top of the dish washing machine capable of conducting soaking and is located in the second containing cavity. In the dish washing process, water is injected into the second containing cavity first to make the dish rack soaked in the second containing cavity; after being soaked, the dish rack is moved to enter the first containing cavity, the water in the second containing cavity passes through the first water inlet pipe and the spray head to wash dishes, and therefore the dishes are washed more easily and thoroughly.

The invention discloses a novel toilet bowl. The novel toilet bowl comprises a bed pan (1), an upper cover (2) and a water tank (3). A water flushing pipe (4) is arranged in an end opening of the bed pan (1), and a plurality of water flushing openings (4.1) are formed in the pipe wall of the water flushing pipe (4); a water draining pipe (11) is arranged on the lower side of the bed pan (1). The novel toilet bowl further comprises an air flushing device, a linkage valve (5), a controller, a switch and a first electric driving device for driving the linkage valve (5) to be opened or closed. The water draining pipe (11) is a straight pipe and is provided with a valve (12) for controlling the water draining pipe (11) to be connected or disconnected; the valve (12) is connected with a handle (13). The novel toilet bowl further comprises a second electric driving device. The toilet bowl is large in water flushing force, the inside of the bed pan can be cleanly flushed at a time, and water resources can be saved; a certain amount of water does not need to be stored in the water draining pipe, water can not be splashed when persons defecate, and using is quite sanitary.

The invention provides an intelligent dung cleaning device for a poultry house, which comprises a dung accumulation pool, a first motor and a rotating rod. The dung accumulation pool is circumferentially provided with an installation groove. The side wall of the dung accumulation pool is fixed with the first motor, and the output end of the first motor is fixed with one end of the rotating rod. The shortcomings in the prior art are overcome, the design is reasonable, and the structure is compact; through adding a second scraper, under driving of the first motor, the dung can be well scraped toa dung discharge port, and due to the bent second scraper, the dung can reach the dung discharge port extremely easily during the scraping process and is not accumulated; through adding a strip brush, under driving of the second motor, the strip brush brushes the bottom part of the dung accumulation pool back and forth, and the bottom part of the dung accumulation pool can be cleaned; and throughadding a round brush, under driving of the second motor, the round brush rotates continuously to brush the bottom part of the dung accumulation pool again, and the bottom part of the dung accumulation pool is cleaned again.

The invention provides a foam generator, a toilet bowl and a foam generation method, and relates to the technical field of toilet bowls. The foam generator comprises an air inlet component, a connecting pipe, an aeration pipe and a control device; one end of the connecting pipe is connected with the air inlet component, the other end of the connecting pipe is connected with the aeration pipe, and the aeration pipe is arranged in a foaming box which is provided with a foam outlet; the control device is electrically connected with the air inlet component; the toilet bowl comprises a toilet bowl seat, a water tank and the foam generator; the foam generation method comprises the steps that the foam effect can be achieved rapidly when a user needs, convenience and rapidness can be achieved in use; by means of foam, odor is isolated, sewage backwash or disorderly splashing around is prevented, and virus breeding is isolated; meanwhile, the effect of flushing the toilet bowl to be cleaner can be achieved. The technical problem of toilet sewage splashing in the prior art is solved.

The invention discloses a flushing-type rabbit cage which comprises a grating cage body, a water inlet switch, a flushing water tank and an excretion water tube. The grating cage body comprises at least one grating cage manufactured by welding hollow steel tubes, the flushing water tank is formed under the grating cage body, the water inlet switch is arranged above the left end of the flushing water tank, the excretion water pipe is arranged at the bottom of the right end of the flushing water tank, and the water inlet switch is connected with an external tap water tube. Through the mode, the flushing-type rabbit cage is good in effect of collecting rabbit excretion, clean in rabbit excretion flushing, high in utilization rate, suitable for large-scale breeding and capable of improving environmental sanitation of breeding sites and reducing the morbidity.

A straight-flushing water-saving closetool comprises a closestool body and a water tank. A water feeding control component and a water draining valve are arranged inside the water tank. The closestool is characterized in that the closestool body can be divided into a stool-receiving cavity and an isolating cavity; a sewage draining outlet is respectively arranged on the lower parts of the stool-receiving cavity and the isolating cavity; a sealing support plate is articulated inside the isolating cavity; the front part of the sealing support plate appears as a disc shape which blocks the closetool draining outlet at the lower end of the stool-receiving cavity; a weight-balancing part is arranged at the rear part of the sealing support plate; a rotary shaft, one end of which is threaded through the water tank, is arranged on the upper part of the water tank; the lead-out end of the rotary shaft is provided with a handle; the front part of the rotary shaft is connected by a link rod with a piston rod of a draining valve; and the rear part of the rotary shaft is connected with the rear end of the sealing support-plate by the link rod and a pulling rope. The closestool has the advantages that the structure is simple; the use is convenient; the straight-flushing is realized and the water-using quantity is low and the water saving capability is good; the flushing effect is clean and complete; after the flushing is completed, the disc mouth at the front part of the sealing support plate can contain a little clean water to realize the water sealing with good sealing effect so as to avoid the air pollution and be beneficial to body health.

The invention relates to a washing machine capable of adjusting a water injection direction and a water injection method thereof. The washing machine comprises an outer drum, an inner drum used for washing and dehydration, a water inlet valve, a computer program controller and a water injection box, wherein a water injection adjusting unit is arranged on a water baffle of the water injection box, thus the water injection direction can be changed through automatic control of the computer program controller according to different positions of clothes in the inner drum to ensure that water can be injected to any proper position from the internal surface of the side wall of the inner drum to the center of the inner drum, namely the water is injected to the internal surface of the side wall of the inner drum first and then to the center of the inner drum in a washing process; the water is injected to the center of the inner drum first and then to the side wall of the inner drum in a spraying and rinsing process; and the water is always injected to the internal surface of the side wall of the inner drum in a water storing and rinsing process. By the technical scheme, the clean ratio and rinsing ratio can be improved, and water and time can be saved.

The invention belongs to the technical field of intelligent manufacturing, and relates to the technical field of industrial production process control systems, in particular to the technical field of chemical product manufacturing in the manufacturing execution system technology, and particularly discloses an intelligent lubricating oil blending system which comprises a blending system and a control system matched with the blending system. The blending system comprises a blending device, and the blending device is connected with a feeding device and a discharging device; the blending device comprises a blending kettle, and a mixing device and an adding device are arranged on the blending kettle; the feeding device comprises a feeding pipe connected with the blending kettle, and further comprises a base oil tank and an additive tank which are connected with the feeding pipe, and a cleaning device is arranged on the base oil tank; and the discharging device comprises a discharging pipe and further comprises a finished product tank connected with the discharging pipe, and a filtering device is arranged on the discharging pipe. The invention provides the intelligent lubricating oil blending system which is convenient to add additives, good in blending effect and high in production efficiency.

The invention discloses a vacuum packaging machine. The vacuum packaging machine comprises a machine body, a feeding device and vacuum chamber devices, wherein the feeding device and the two vacuum chamber devices are arranged on the machine body. Each vacuum chamber device comprises a vacuum chamber, a sealing clamping head and a plurality of sealing heads, wherein the sealing clamping head and the sealing heads are arranged inside the vacuum chamber. The feeding device comprises a transmission mechanism and feeding clamping heads arranged on the transmission mechanism at intervals and connected with a clamping air cylinder. The transmission mechanism is located between the two vacuum chamber devices. Each vacuum chamber device further comprises a driving mechanism used for enabling the corresponding sealing clamping head to clamp packages on the feeding clamping heads and sequentially feed the packages into each sealing head. Compared with the prior art, the feeding device and the two vacuum chamber devices are adopted, the multiple sealing heads used for sealing the packages are arranged in each vacuum chamber device, continuous operation of the feeding device is guaranteed through alternative feeding and sealing of the two vacuum chamber devices, and the packaging efficiency is improved.

The invention discloses an automatic shrimp-crab washing device. The automatic shrimp-crab washing device comprises a washing tank, wherein a primary conveyor belt and a secondary conveyor belt, which convey articles in the same direction and are respectively provided with a plurality of through holes, are arranged in the washing tank, and the height of the secondary conveyor belt is lower than that of the primary conveyor belt; a feeding cabin is arranged above the upper stream of the primary conveyor belt, and the bottom of the feeding cabin is provided with an electric valve connected to a PLC; a liftable rear baffle plate is arranged above the lower stream of the primary conveyor belt, and the rear baffle plate is provided with an infrared sensor connected to the PLC; a brush connected to the PLC is arranged above each of the primary conveyor belt and the secondary conveyor belt, each brush can slide back and forth along the length direction of the washing tank, and the height of each brush can be increased and decreased; the front side wall of the washing tank is provided with a plurality of water spraying pipes. By adopting the structure, materials can be automatically fed, the automation degree is high, the labor cost is low, and more comprehensiveness in washing can be realized. Meanwhile, shrimps can be washed, the universality of the device is high, and the utilization rate is high.