54results about How to "No cleaning required" patented technology

The invention discloses a repairing material for a base layer of oil colored paintings of ancient architecture, which comprises an acrylic acid-2-ethylhexyl ester, a vinyl acetate, a methyl methacrylate, an acrylic acid, an N-hydroxymethyl acrylamide, an emulsifying agent, a neutralizing agent, a defoaming agent, a rheological agent and an initiating agent. The preparation technology comprises the following steps of: preparing a polyacrylate emulsion by using free radical emulsion polymerization, and adding the neutralizing agent, the deforming agent and the rheological agent in the polyacrylate emulsion to obtain an emulsion binder. The emulsion binder prepared by the invention has no granular condensation products, good mechanical stability, freeze thaw stability and interface adhesion force, can be coated and injected, is free from ash removal and reversible at a high temperature and is applicable to the binding materials for repairing the base layer of the oil colored paintings of the ancient architecture.

The invention discloses a glass fiber-reinforced plastic polyurethane TPU composite tube. The glass fiber-reinforced plastic polyurethane TPU composite tube comprises an outer protective layer, an outer reinforcing layer, a sand inclusion structure layer, an inner reinforcing layer and a lining layer which are sequentially arranged from outside to inside, wherein the outer protective layer is a composite layer with quartz sand and unsaturated polyester resin, the outer reinforcing layer is a composite layer with glass fibers and unsaturated polyester resin, the sand inclusion structure layer is a composite layer with quartz sand, glass fibers and unsaturated polyester resin, the inner reinforcing layer is a composite layer with glass fibers and unsaturated polyester resin, and the lining layer is a low free nanometer polyester layer. The invention further discloses a manufacturing process of the glass fiber-reinforced plastic polyurethane TPU composite tube. The glass fiber-reinforced plastic polyurethane TPU composite tube has reliability, safety and economy, is mainly used for pulp conveying, bittern conveying, sea water desalination and corrosion-resistant and abrasion-resistant process pipelines, has the advantages of being light, high in strength, resistant to corrosion, high in abrasion resistance, long in service life, low in operation and maintenance cost and the like, and saves a large number of expenses for construction engineering.

The invention relates to a range hood with an external draught fan, and particularly relates to a range hood suitable for household use. The range hood comprises a draught fan (1), a flange (2), an air duct (3), a spray nozzle (4), a jet pipe (5), a soft pipe flue (6), a flue (7) and a hood (8). The draught fan (1) takes in fresh air; air flow blown by the draught fan (1) passes through the air duct (3), enters the spray nozzle (4) and is sprayed out at a high speed; a negative pressure is formed in the jet pipe (5); oil fume in a kitchen is sucked into the hood (8); the oil fume passes through the flue (7) and the soft pipe flue (6); and the oil fume is sucked in by the jet pipe (5) and is sprayed out together with the jet stream. The range hood with the external draught fan is advantageous in that the draught fan takes in the fresh air, blades of the draught fan can be kept clean, and the range hood is in no need of cleaning, and is convenint for use.

The invention is the air-conditioner to prevent the blocking and the dirt of the condenser. The invention sets the circuit that controls the rotary of the electric machine of the fan in the control circuit of the outdoor electric machine of the air-conditioner, and makes the fan of the outdoor machine reverses for a while after each stopping of revolving and uses the reversing wind to blow off the dust just absorbing on the condenser to prevent the blocking of the condenser.

The invention discloses a straw-collecting device of a mowing machine. The straw-collecting device comprises a power output shaft, a straw-collecting bag and a straw-collecting channel which are arranged on the mowing machine and a straw-collecting fan, wherein the straw-collecting fan is arranged on the power output shaft of the mowing machine. The invention has the advantage of high straw-collecting efficiency, and can lower the mowing cost and save the labor, thereby improving the mowing efficiency.

The invention relates to the field of plant protection, in particular to hedge trimming equipment with a cleaning function. The equipment comprises an adsorption pipe and further comprises a controller, a trimming mechanism and a cleaning mechanism, the trimming mechanism is arranged in the adsorption pipe and is used for trimming hedgerow, the trimming mechanism comprises a driving assembly and three rotary blades, the cleaning mechanism comprises a cleaning box, an adsorption assembly and a cutting assembly, the cleaning box is fixedly arranged at one end of the adsorption pipe, the cleaningbox is communicated with the adsorption pipe, the adsorption assembly is arranged at the end, close to the interior of the cleaning box, of the adsorption pipe, the cutting assembly is arranged at the end, close to the interior of the adsorption pipe, of the cleaning box, and the driving assembly and the controller are electrically connected. According to the hedgerow trimming equipment with thecleaning function, sheared hedgerow branches can be synchronously cut and screened together with hedgerow leaves and respectively collected during trimming, sweeping of plant protection personnel is not needed, meanwhile, hedgerow growth is facilitated, environmental pollution is reduced, and secondary utilization of resources is achieved.

Disclosed is an investment casting mold cavity cleaning method based on selected area laser powder sintering rapid proto-typing technology application. According to the technical scheme, the top end of a wax mold and the secondary top end of the wax mold are connected with a residue discharging channel and a residue collecting device in a welded mode in a mold set assembling process. After a shell manufacturing process and a dewaxing process, flowing discharging of a wax mold in a liquid state and gathering of remained residues can be effectively controlled in a baking process, so that a clean mold cavity is obtained. After a series of well-known investment casting technology such as smelting, pouring, sand cleaning and piece dropping, an investment casting with a surface and an interior being good in quality is obtained.

The invention discloses a paste slurry drilling, grouting and impact extrusion expanded-head anchor rod structure system and a construction method thereof. According to the construction method, a self-drilling type hollow grouting anchor rod meeting the design requirement is directly used, and a drilling and grouting integrated in-situ impact extrusion grouting method is adopted, and middle-high pressure paste slurry impact extrusion drilling and grouting are conducted on full-hole section surrounding soil from top to bottom; and then a paste slurry pulse high-pressure pile squeezing and splitting method is adopted for conducting segmented reciprocating high-pressure paste slurry impact extrusion expanding grouting on an expanded-head anchoring hole section from bottom to top, after the expanded-head anchoring section meeting the design requirement is formed, middle-high pressure paste slurry impact extrusion drilling and grouting are conducted from top to bottom, and the self-drillingtype hollow grouting anchor rod is installed in place, so that the composite anchor rod structure system is formed, wherein the composite anchor rod structure system is combined with the self-drilling type hollow grouting anchor rod, and the composite anchor rod structure system is composed of upper non-anchored section middle-high pressure paste slurry impact extrusion grouting composite surrounding soil, a lower anchored section high-pressure paste slurry impact-extrusion expanded head pile body, a pile periphery slurry extrusion and splitting vein and a compacted soil body. The paste slurry drilling, grouting and impact extrusion expanded-head anchor rod structure system is convenient to construct, small in waste slurry amount, safe, environment-friendly and controllable in quality.

The present invention provides a disposable grill which is formed by treating the surface of a base (2) consisting of aluminum sheet, aluminum foil, or the like with atmospheric plasma to form an ultrafine irregularity of about 10 and then coating the surface with a loess ceramic layer (5) having a predetermined thickness. The disposable grill can be disposed after use and is thus hygienic, does not require washing and the like and is thus easy to use, has a low production cost, and prevents meat from getting scorched and sticking to the grill or getting burned and prevents meat juice from drying up, due to the effect of a large amount of far-infrared rays generated therein, so that a user can enjoy soft and unique flavors of meat (savory taste and odor, etc.).

The invention relates to a preparation method of epoxy resin coated stainless steel powder. The preparation method comprises the following steps of dissolving epoxy resin in a solvent, adding stainless steel powder, stirring until the solvent is volatilized, and sequentially conducting drying, grinding and screening, wherein the mass ratio of the epoxy resin to the stainless steel powder is 1: (20-50), and the epoxy resin is solid bisphenol A epoxy resin. According to the preparation method, the epoxy resin is dissolved in the solvent, the resin is separated out and coated on the surface of the stainless steel through solvent volatilization, in the process, the fluidity and dispersity of the stainless steel powder are good, the coating effect is improved, the prepared coated powder is good in sphericity degree and less in powder agglomeration, and the phenomena of agglomeration, uneven coating and the like of the coated powder are effectively reduced. No antioxidant or dispersing agent is added, introduction of impurities is reduced, the preparation process is simple, subsequent further impurity removal is not needed, and the requirement for equipment is low.

The invention discloses a portable car cover device which can be disposable or used for many times, and aims at solving the phenomena that existing car cover is inconvenient to use, operate and wash and blocked easily when accommodated. The portable car cover device comprises a car cover box and hooking clamp grooves, the car cover box is provided with a car cover box device and a car cover clampplate, the outside of the car cover box device and the car cover clamp plate are provided with clamp strips relates to the hooking clamp grooves, the car cover box device is internally provided with afixed hollow shaft, the outer wall of the hollow shaft is provided with a middle shaft fixed rotary drum internally provided with a rotary shaft, the outer wall of the middle shaft fixed rotary drumis provided with a car cover winding drum, one end of the hollow shaft is provided with a mobile control handle, the cavity of the other end of the hollow shaft is provided with a telescopic rod of which one end is provided with a related grip, the car cover winding drum winds the disposable car cover, the side face of the car cover box is provided with a mobile cover plate, the car cover box is internally provided with a mobile tooth door of which the two ends are provided with guide wheels, and the mobile tooth door is provided with a related baffle.

The invention discloses an evaporator for wastewater evaporation and belongs to the technical field of wastewater evaporators. The evaporator comprises a treatment box; a water storage frame is fixedly connected between the two sides of the inner wall of the treatment box; heating pipes are installed on the two sides of the bottom of the inner wall of the treatment box correspondingly; U-shaped grooves are formed in the bottoms of the two sides of the inner wall of the treatment box correspondingly; extrusion plates are slidably connected to one sides of the inner walls of the two U-shaped grooves correspondingly; and extrusion springs are fixedly connected to the bottoms of the two extrusion plates correspondingly. According to the evaporator for wastewater evaporation, a anti-scaling heat conduction plate is adopted, so that the heating pipes are prevented from directly contacting wastewater, and the evaporation of the wastewater is not influenced, and therefore, the surfaces of theheating pipes will not be scaled, and the normal use of the heating pipes can be guaranteed; the anti-scaling heat conduction plate can be conveniently disassembled and assembled through the arrangement of devices such as the extrusion plates and the extrusion springs, so that the anti-scaling heat conduction plate can be replaced after being used, the whole equipment does not need to be cleaned and disassembled, and the evaporator is more convenient to use.

The invention provides a bathing device with water heating and heat recycling functions. The bathing device comprises a platform basin, a water heater and a plastic sleeve type heat exchanger, and is characterized in that the plastic sleeve type heat exchanger is mounted at the lower part of the platform basin; bathing wastewater firstly flows through a stainless steel corrugated tube in the plastic sleeve type heat exchanger to be discharged into the sewer, tap water firstly flows into the plastic sleeve type heat exchanger, performs heat exchange with bath water through the tube wall of the stainless steel corrugated tube, and then flows into the water heater to be heated to a set temperature; compared with the conventional electric water heater for hot water supply, the bathing device has the advantage that the electricity is economized by 70% or above; waste hot water flows in the stainless steel corrugated tube with the diameter of 25-60 mm in the plastic sleeve type heat exchanger, so that the flow channel is not easy to block and does not need to be cleaned. According to the bathing device with water heating and heat recycling functions, the installation is simple, water is ready to be heated when the device is switched on, the water temperature is constant and comfortable, and general popularization and application are facilitated.

The invention discloses a moving handrail guiding assembly of a guardrail column part of an escalator or a moving walking escalator. The moving handrail guiding assembly comprises a supporting formingpiece, and a low-friction-coefficient component or a low-friction-coefficient subcomponent chain, wherein the supporting forming piece is mounted on the guardrail column part and provided with a chamber defined by the side walls and the bottom; and the two ends of the low-friction-coefficient component or the low-friction-coefficient subcomponent chain are fixed to the guardrail column part, thelow-friction-coefficient component comprises a single component, the low-friction-coefficient subcomponent chain comprises a plurality of low-friction-coefficient subcomponents, the low-friction-coefficient component or each low-friction-coefficient subcomponent has the shape matched with the shape of the chamber of the supporting forming piece, and the ends of all the low-friction-coefficient subcomponents are connected mutually to cover an opening of the chamber. The moving handrail guiding assembly is simple in structure and low in cost, heat generated by friction and heat generated by repeated bending in a handrail can be reduced, the service life of the handrail is prolonged, abrasion, aging and cracking are reduced, and meanwhile, a sensor can be used for monitoring force in the handrail and monitoring abrasion of the handrail.

The invention discloses a pulp water uniform distribution device used in a papermaking headbox. The pulp water uniform distribution device comprises a base plate, the papermaking headbox, a shifting device, an adjusting device and a cleaning device. The two sets of stirring devices are arranged, the two sets of stirring devices are connected with each other, one set of stirring devices is arranged at the upper end of the papermaking headbox, the other set of stirring devices is arranged in the cleaning device, stirring pieces used for stirring pulp are arranged at the bottoms of the two sets of stirring devices, and impurities and clustered fibers in the pulp can be attached to a stirring and sweeping plate when the stirring pieces stir the pulp; the height and the angle of the two groups of shifting devices are adjusted by the adjusting device, so that the two groups of shifting devices can be changed, pulp water can be conveniently poured into a papermaking headbox, the shifting sweeping plate attached with impurities can be conveniently placed in the cleaning device to be cleaned after the position is changed, and waiting for cleaning is not needed; the other group of unused shifting pieces can enter the papermaking headbox to continue working, the automation effect is good, manual replacement or cleaning is not needed, and the working efficiency is effectively improved.