36results about How to "Keep clean and safe" patented technology

The invention discloses a feeding machine for pets. A water containing groove, a water-feeding groove and a main control circuit board are arranged, a water pump is arranged in the water containing groove, a water inlet hole communicated with the water pump is formed in the water-feeding groove, the upper surface of the water-feeding groove extends in a curve direction along the periphery of the water inlet hole to form an inclined face with multiple protruding surfaces, a water outlet is formed in the bottom end of the inclined face and communicated with the water containing groove, and the water pump drives fluid to circulate between the water containing groove and the water-feeding groove. The water-feeding groove is provided with the inclined face with the protruding surfaces, the water pump drives the fluid to circulate between the water-feeding groove and the water containing groove, the water-feeding groove does not contain the fluid, the fluid directly flows down, in this way,exposure time of the fluid in air is short, mosquitoes are not prone to breeding, and it is guaranteed that water feeding is clean and safe for the pets. By arranging the inclined face of the water-feeding groove, the water outlet face of the water-feeding groove is different in height, so that the feeding machine is suitable for pets of different heights. The lowest position of the inclined facecan be used for small pets, and it is avoided that the pets are small and therefore not suitable for getting close to the water-feeding groove.

The invention discloses a method for improving safety performance of computers on the basis of a safety sandbox, which is used for keeping a user system clear and safe. In the method, software is mounted in a safety black box by a user, and the black box runs in a system kernel model and monitors and intercepts behaviors of the application software running in the black box. If the software sends out I / O request, the safety black box receives the request and adds the same into a request queue, and an I / O request analyzer inside the safety black box extracts the request from the request queue and then analyzes and judges the request; if the request accesses the internal resources of the safety black box, the request is added into an executing queue; if the request accesses the external system resources in a read-only manner, then the request is allowed to be added into the executing queue; if the request requires modifying the external system resources, a resource image of the external system resources is generated inside the safety black box, and the I / O request is redirected to request the internal resources of the safety black box and added into the I / O request queue. The method keeps the user system clear and safe.

The invention discloses an extraction and perfusion culture system for MSCs (Mesenchymal Stem Cells), belongs to a field of medical instruments, and more specifically, provides a set of continuous and completed system design for obtaining high-purity stem cell products from a placenta organ. The device provided by the invention comprises an extraction device and a perfusion culture system, and the extraction device and the perfusion culture system are connected hermetically and aseptically, wherein the extraction device comprises a placenta cutting device, a reaction tank, a filter device, a filtrate collection device and a density gradient centrifugation device; and the perfusion culture system comprises a culture solution storer, a monitoring reactor, a cell culture bottle, a liquid waste bottle, a bottle for obtaining liquid, a biochemical criterion detection head group, an online monitoring system, a speed control fluid propeller and a pipeline device capable of controlling speed. The extraction and perfusion culture system for the MSCs (Mesenchymal Stem Cells) has benefits that the cutting efficiency is high; the operation is convenient and effective; the production efficiency can be greatly improved; the preparation technology is simple; and the quality control is simple and convenient, so as to efficiently obtain uniform and good stem cell products within a short time.

The invention relates to kitchenware and discloses a slicing and slitting device for fruits, vegetables and tubers. The slicing and slitting device comprises a pressing head and a connecting rod connected to the bottom of the pressing head; a pressing plate is connected under the connecting rod and detachably disposed over a charging barrel, a containing barrel is arranged under the charging barrel, and a cutter is arranged at the joint of the charging barrel and the containing barrel. The slicing and slitting device aims to solve the problem about slicing and slitting (shredding) of the fruits, vegetables and tubers, prevents the fingers from being injured accidentally and is convenient to operate; an additional energy source is omitted, the slicing and slitting device is simple in structure, small in size, portable, less prone to blockage and convenient to clean, and cleanliness and safety of food are guaranteed.

The invention discloses a method for producing polyaluminium sulfate from aluminum profile machining waste liquid. The method comprises the following steps: with aluminum-containing alkaline waste liquid produced in the aluminum profile machining process as a raw material, preparing solid Al(OH)3 and a NaAlO2 solution respectively, then preparing the solid Al(OH)3 into an Al2(SO4)3 solution, finally blending the NaAlO2 solution, the Al2(SO4)3 solution and a phosphoric acid solution, and digesting to obtain polyaluminium sulfate. By the method, resource utilization of the aluminum-containing alkaline waste liquid is achieved, and in the whole process, new waste liquid is not produced, so that zero pollutant emission is achieved and cleanness and safety of the production process are ensured; meanwhile, a conventional model that harmless pollutant disposal is a pure investment project is changed, the environment is protected and economic benefits are increased, so that two advantages are achieved at one stroke.

The invention discloses an automatic production process of a plant polysaccharides guar gum. The automatic production process comprises the following steps that a guar gum sheet is sent to a sheet washing machine by virtue of a hopper hoist; the cleaned purified sheet enters a buffer tank and a double-cone mixer for hydrating the guar gum sheet; the materials discharge from the bottom of the double-cone mixer enter a tackifying machine to be tackified and then the tackified materials are sent into a superfine pulverizer to be crushed; and the materials after crushing enter an air dryer, fall into an ultra-fine molecular sieve by virtue of cyclone separation, enter corresponding storage tanks by virtue of different screens in the ultra-fine molecular sieve respectively, enter finished product storage tanks respectively according to the requirements and enter a packaging machine. The automatic production process has the beneficial effects of realizing continuous production, high production efficiency, low production cost and high and stable quality of product. According to the automatic production process disclosed by the invention, in the production process, production is carried out in a closed environment, so that the environment is difficulty polluted, and the cleanness and the safety of the product are ensured; the labor intensity is weak, the amount of used labor is small, the labor cost is low and the quality of the product is high and stable; the assistant tool for continuous production is small and easily cleaned.

The invention discloses a method for preventing and curing prawn virus damage and improving prawn farming yield. The method is characterized by comprising the steps of pond disinfection treatment, natural bait cultivation, mixed cultivation, fertilization and pond water quality management. According to the method, dissolved oxygen is improved ceaselessly and substantially, hazardous substances like ammonia nitrogen, hydrogen sulfide and nitrite in water can be effectively degraded, microorganism ATP bacteria can maintain pond ecological environment, and it can be guaranteed that farming water quality is friendly to environment; immunoglobulin of yolk is fed reasonably to stimulate prawn organisms repeatedly, and the anti-virus and antibacterial ability of hepatopancreas can be improved; thus, the anti-virus and antibacterial ability of the whole organisms can be greatly improved, the development of aquaculture can be promoted, farmers can be driven to get rich, and rural ecological environment can be improved.

The invention discloses a multi-level defense system for ensuring the use security of a network user, and the system comprises an account autonomous encryption module, an access filtering defense module and an access resisting filtering module; the account autonomous encryption module further comprises a mode confirmation unit, a time-limited login unit, a login locking unit and an abnormity feedback unit; the access filtering defense module comprises a website pre-recording unit, a cleaning filtering unit, a question feedback unit, a processing confirmation unit and an entry confirmation unit, the access resisting filtering module comprises a website detection unit, and the output end of the website detection unit is connected with a judgment processing unit. The defense system is compact and comprehensive, multiple filtering is carried out on the website accessed in login and use of the user before the user uses the network and the webpage automatically popped up, the network use safety of the user is improved, the neatness and safety of the network environment are ensured, the use effect is enhanced, and the defense system is suitable for popularization and use.

The invention relates to the field of environment-friendly toilets, an electrochemical method and a biological method are utilized to achieve zero emission and recycling of toilet sewage, scum and sediment generated in the system are collected and then automatically pressed into a mud cake through a volute filter press, and the mud cake is treated as solid waste after being dried in the air. The invention particularly relates to a recyclable sewage treatment system and process for a mobile environment-friendly toilet. According to the main principle, macromolecular chains in sewage are brokenand degraded under the electrocoagulation and electrocatalysis action of an electrocoagulation module, meanwhile, chloride ions in the water can be excited and converted into hypochlorous acid and thelike in the electrocatalysis process to thoroughly kill bacteria, viruses and microorganisms in the water, and the treated effluent can be used for flushing toilets. The system and the process are adopted for treating the toilet sewage of the field construction operation unit without the town sewage pipe network and have the advantages that water resources are saved, environmental pollution is reduced, and the system and the process are particularly suitable for treating the toilet sewage of the field construction operation unit without the town sewage pipe network; modular overall equipmentis small in occupied area and easy and convenient to maintain; compared with a technology for treating toilet sewage by a biological method, the cost is greatly reduced, and the effect is excellent.

The invention provides a system and method for improving saline-alkali soil by functional area aggregates. The functional area aggregates are divided into three large functional areas, which are an anti-salt-return area, a saline-alkali soil salt elimination area and an auxiliary functional area respectively. The anti-salt-return area is mainly a plant planting area; a salt elimination ditch is mainly distributed in the saline-alkali soil salt elimination area; and the auxiliary functional area comprises a barley pest culture area, a recycled water area and a renewable energy area. The saline-alkali soil salt elimination area can effectively and integrally reduce the saline content of the saline-alkali soil, the anti-salt-return area can effectively prevent salt return of the saline-alkalisoil, and finally the auxiliary functional area not only can supply water and energy resources to another two functional areas, but also can supply organic fertilizer to the anti-salt-return area. The three functional areas work synergistically to form a whole, and the resources are shared mutually. The running cost of the saline-alkali soil is effectively reduced and the efficiency is improved.

The invention provides a system and method for improving saline-alkali land through functional area aggregates. The functional area aggregates are divided into three large functional areas, which are respectively anti-salt return area, saline-alkali land salt discharge area and auxiliary function area. The anti-salt area is mainly plant planting area; the salt drainage area of ​​saline-alkali land is mainly distributed with salt drainage ditches; the auxiliary function area is barley insect breeding area, water recovery area and renewable energy area. The salt discharge area of ​​saline-alkali land can effectively reduce the salinity of saline-alkali land as a whole, and the anti-salt return area can effectively prevent saline-alkali land from returning to salt again. Finally, the auxiliary function area can not only supply the water and energy resources required by the other two functional areas, but also supply anti-corrosion Organic fertilizers in back-salt areas. The three functional areas work together to form a whole and share resources with each other. Effectively reduce the operating cost of saline-alkali land and improve efficiency.

The invention discloses an adjustable adhesive tape cutting device, which comprises a shockproof base, a small roller, a dust removal box and a large roller. A junction box is fixedly connected to the top of the shockproof base, and a small roller is arranged on one side of the junction box. , a large roller is arranged above the small roller, positioning lines are provided on the surface of the small roller and the large roller, and a first chute is fixed inside the anti-vibration base, and the surface of the first chute is fixed A moving block is connected, a dust removal box is provided on the top of the junction box, a cyclone dust collector is provided inside the dust removal box, a dust-proof pipe is connected to one side of the dust-removal box, and a dust suction hole is provided on the surface of the dust-proof pipe. A lifting rod is fixedly connected to the surface of the moving block, and a second chute is arranged inside the lifting rod. The invention is simple in structure, easy to operate, can cut tapes of different widths at the same time, can work independently, does not affect each other, is convenient to adjust the cutting position, can ensure a clean working environment, avoid flying dust, and protect workers' safety.

The invention discloses a deformation-resisting elevator toe guard which comprises a supporting frame. A U-shaped groove is formed in the end portion of the supporting frame. The outer side of the supporting frame is connected with a fixing plate through multiple long bar holes. Multiple lifting hooks are arranged at the upper end of the fixing plate. One ends of the lifting hooks are connected with the supporting frame through rectangular holes. A limiting bracket is arranged on the inner side of the fixing plate. The upper end of the limiting bracket is connected with the supporting frame. Positioning angle steel fixed to the inner side of the fixing plate is arranged on the two sides of the limiting bracket. The upper end of the positioning angle steel is attached to the bottom of the U-shaped groove. A trapezoidal groove is formed in the bottom of the fixing plate, and multiple strengthening rib plates connected with the fixing plate are arranged in the trapezoidal groove. By meansof the deformation-resisting elevator toe guard, due to cooperation of the positioning angle steel and the lifting hooks, a limiting effect can be achieved on the fixing plate; and the stress strength of the fixing plate can be effectively improved through the limiting bracket, so that the toe guard has the beneficial effects of being high in deformation-resisting capability and good in safety.

The invention provides an infrared thermometer with a safety protection device, and belongs to the technical field of infrared thermometers. An infrared thermometer with a safety protection device comprises an infrared thermometer shell, an infrared thermometer probe is arranged at one end of the infrared thermometer shell, and a handle is arranged at the bottom of the infrared thermometer shell. The safety protection mechanism is arranged at one end of the infrared thermometer shell, the safety protection mechanism comprises a protection frame, and the protection frame is rotationally arranged at one end of the infrared thermometer shell in a sleeving mode through a hinge. The safety protection mechanism is arranged to protect the infrared thermometer probe, and the activated carbon filter screen plate, the activated carbon filter screen plate and the steam filter screen plate are arranged to prevent water vapor, gas dust and impurities from being in direct contact with the infrared thermometer probe, so that the cleanliness of the infrared thermometer probe is ensured, and the service life of the infrared thermometer probe is prolonged. The use environment of the infrared thermometer probe is improved, and the service life of the infrared thermometer is prolonged.

The invention relates to the technical field of plant cultivation, in particular to a method for planting tender sprouts through gel and a preparation method of a gel medium, and the preparation method of the gel medium comprises the following steps: (1) dissolving gel powder in cold water to obtain a gel suspension, (3) adding the gel suspension into boiling water, stirring to completely dissolve the gel powder, fixing the volume, boiling again, and cooling to obtain the gel medium. A gel solution is obtained; and (4) adding the gel solution into a cooling molding device to obtain a gel medium cultivation tray, and meanwhile, according to the cultivation method of the fire seedlings, the gel medium is utilized for cultivation, and the proportion of blue light is increased and the growth quality of the fire seedlings is improved from the hypocotyledonary axis elongation period to the leaf growth period.

The invention discloses a cleaning device free of raised dust. The cleaning device includes a dust collection floor brush, a dust remover, a compressed air source, a multi-pass air source joint with one inlet and a plurality of outlets, a multiple-pass inlet joint with one inlet and a plurality of outlets, and a multiple-pass outlet joint with one outlet and a plurality of inlets; the outlets of the multiple-pass inlet joint are in one-to-one correspondence with the inlets of the multiple-pass outlet joint, and each pair of corresponding outlets of the multiple-pass inlet joint and the inletsof the multiple-pass outlet joint are respectively connected to a vacuum generator; and an outlet of the dust collection floor brush communicates the inlet of the multiple-pass inlet joint, the outletof the multiple-pass outlet joint communicates a dust hopper of the dust remover, air source inlets of the vacuum generators respectively communicate the outlets of the multi-pass air source joint, and the inlet of the multi-pass air source joint communicates the compressed air source through an air inlet pipe with a ball valve. The cleaning device has the advantages of large adsorption force, large reserve capacity of powder, low noise, no need for secondary reverse transportation of the powder and no secondary raised dust.

The invention discloses a surgical nursing wound disinfection spraying device which structurally comprises a main protecting cover, a label and a device body and has the following beneficial effects that a spraying head of the device is arranged to be of a double-pressing-cover structure, when the device is used, a second pressing cover is firstly pressed to enable a spraying through hole to be communicated with the spraying head, and the spraying through hole is communicated with the spraying head; and then the first pressing cover is pressed to perform pressure pumping and spraying of the atomizing nozzle, so that when the device is used, the atomizing nozzle can be protected even if the main protecting cover is not covered, the main protecting cover is better prevented from being lost, the atomizing nozzle is better prevented from being stained during continuous interval use, and the use safety and cleanness are ensured; the one-way device is arranged at the assembly position of the atomization spray head for liquid passing, the negative pressure tank body of the device is matched, the tank body can be subjected to negative pressure shrinkage along with pressure extraction, closed liquid filling extraction can be performed by opening the liquid filling connector and controlling the liquid filling baffle after shrinkage, the influence of the environment on cleanliness in the tank is better prevented, and use is convenient.

The invention discloses a method for preventing and curing prawn virus damage and improving prawn farming yield. The method is characterized by comprising the steps of pond disinfection treatment, natural bait cultivation, mixed cultivation, fertilization and pond water quality management. According to the method, dissolved oxygen is improved ceaselessly and substantially, hazardous substances like ammonia nitrogen, hydrogen sulfide and nitrite in water can be effectively degraded, microorganism ATP bacteria can maintain pond ecological environment, and it can be guaranteed that farming water quality is friendly to environment; immunoglobulin of yolk is fed reasonably to stimulate prawn organisms repeatedly, and the anti-virus and antibacterial ability of hepatopancreas can be improved; thus, the anti-virus and antibacterial ability of the whole organisms can be greatly improved, the development of aquaculture can be promoted, farmers can be driven to get rich, and rural ecological environment can be improved.

The invention relates to a carry-on overflowed milk recycling device. The carry-on overflowed milk recycling device mainly comprises silicone nipple pastes, nipple protection covers, a communicating pipe, a recycling bag and a recycling bag inner cover; the carry-on overflowed milk recycling device is characterized in that the silicone nipple pastes are self-adhesively designed, carry-on wearing is convenient, the center parts of the silicone nipple pastes are provided with nipple and areola inlets, and positions which are away from the outer sides of the nipple and areola inlets by 1 cm are fixedly connected with the nipple protection covers; the upper parts of the nipple protection covers are provided with multiple air exhausting holes which are specially designed in a thickening way, the lower parts of the nipple protection covers are funnel-shaped, and the phenomenon that milk is enabled to flow to the communicating pipe and cannot flow back while a woman horizontally lies at night is ensured; the communicating pipe is Y-shaped, the upper ends of the communicating pipe are fixedly connected with the nipple protection covers, and the lower end of the communicating pipe is in threaded connection with the recycling bag; the recycling bag is a soft bag, the recycling bag can be completely sealed through being in threaded connection with the recycling bag inner cover after the recycling bag is taken down, and the recycling bag can be used as a milk storing device. According to the carry-on overflowed milk recycling device disclosed by the invention, the structure is simple, the use is convenient, the carry-on wearing is realized, human breast milk can be collected in a whole day, the cleanliness and the safety of the human breast milk can be ensured at the same time, and the carry-on overflowed milk recycling device can be widely applied to women who are in a lactation period and have a pathological milk overflowing phenomenon.

A dual-needle syringe capable of preventing infection, including: an infusion needle shaft (3) configured to aspirate a liquid from a drug container (30); an injection needle shaft (5) having a sharp point of one end inserted into a body, and the other end connected to the syringe (10), through which the liquid filled in the syringe (10) is injected into a body; a hub barrel (7) engaged to a barrel (15) of the syringe (10) to infuse the liquid, which is aspirated from the drug container (30) through the infusion needle shaft (3), into the syringe (10) through the injection needle shaft (5), the hub barrel having an infusion needle shaft hub (21) and an injection needle shaft hub (23) which can be separated from each other before the liquid is injected; and a filter (9) configured to filter foreign substances contained in the liquid.