294results about How to "Won't block" patented technology

The invention provides a biomass wood-plastic composite material for 3D (three-dimensional) printing. The composite material is characterized by comprising the following components in parts by mass: 30 to 60 parts of PLA (poly lactic acid), 6 to 10 parts of UHMWPE (ultrahigh molecular weight polyethylene), 10 to 40 parts of wood dust, bamboo powder or rice hull powder, 10 to 20 parts of paper pulp, 1 to 4 parts of a compatilizer, 1 to 3 parts of a coupling agent, 5 to 10 parts of hollow microspheres, 1 to 3 parts of a lubricant, 0.5 to 2 parts of an antioxidant and 1 to 3 parts of a toughening agent. The composite material is low-carbon, environment-friendly, high in stability, free of hole plugging and warping, can be completely recycled, has the natural friendliness of wood, and has low requirements for machining conditions, and a product has higher physical and mechanical performance and higher weather resistance such as acid and alkali resistance, mothproof performance and ultraviolet resistance.

The invention discloses an air positive electrode constructed by conductive gel particles and a lithium air battery. The air positive electrode is characterized by being of a full-solid structure and comprising particles with arbitrary shapes, wherein the particles are prepared from conductive gel, gaps are formed among the particles, electrons and ions can be simultaneously conducted by conductive gel, and the size range of the particle sizes of the particles is 10-500 microns; the particles are stacked to form a laminated structure, and the thickness of the laminated structure is 50 microns to 5 millimeters. A battery cell of the lithium air battery is of a multi-layer winding type structure or a multi-layer laminating type structure and is formed by winding and laminating a plurality of repetitive units, and each repetitive unit comprises the air positive electrode. A rapid gas dispersion channel is formed in the air positive electrode and can be prepared to be relatively thick, so that the problem that oxygen is difficult to diffuse is effectively solved, and the air positive electrode can be truly input into actual application.

The invention relates to a high-pressure fog gun machine which comprises a base, a top frame arranged on the upper surface of the base, a rotating disc arranged on the top frame, a cylinder used for atomization, a V-shaped supporting frame fixed to the rotating disc and used for supporting the cylinder, and a push rod mechanism fixed to the rotating disc and used for driving the cylinder to swing the head vertically. A motor, a high-pressure water pump and a water tank are arranged in the base. An input port of the high-pressure water pump is connected with the water tank through a water suction pipe. A draught fan, a high-pressure water storage tank and at least two nozzles arranged at the front end of the high-pressure water storage tank are arranged in the cylinder. The high-pressure water storage tank is connected with an output port of the high-pressure water pump through a high-pressure water conveying pipe. The nozzles are high-pressure ball valves. According to the high-pressure fog gun machine, the nozzles of the machine are not likely to be blocked, the atomization degree is high, the atomization effect is good, the injection range is large, the distance is long, the automation degree is high, and the high-pressure fog gun machine is suitable for industries such as agriculture and forestry irrigation water replenishing or insecticide spraying, hospital disinfection and sterilization and dust removing, smoke removing and purifying for a construction site or municipal administration or fire protection.

The invention provides a wine cabinet with a humidification control system. The problem that the humidity inside a wine cabinet existing in the prior art is not controlled well can be solved. According to the technical scheme, the wine cabinet with the humidification control system comprises a refrigerating system and the humidification control system; the refrigerating system comprises a compressor, an evaporator and a condenser; the humidification control system comprises a humidification device, a condensate water recycling device and a controller; the humidification device comprises an ultrasonic humidifier and a water tank; the condensate water recycling device comprises a water containing box arranged at the bottom of the evaporator, the lower portion of the water containing box is provided with a water guiding pipe communicated with the water tank, and the controller controls the running of the humidification device and the condensate water recycling device. The wine cabinet can achieve the purposes of fast humidifying and accurate humidity controlling, is safe, sterile and convenient to use, and satisfies users completely.

The invention discloses a fracture rock no-slurry-blocking wall compound grouting construction method. The method comprises the following steps: when carrying out grounting, firstly, pressing and injecting pure water cement slurry in an inner hole, closing water glass slurry inlet gate valve, opening the water glass slurry inlet gate valve after the heading face leaks cement slurry and simultaneously pressing and injecting double liquid slurry of cement and water glass; after the heading face does not leak the slurry or the heading face leaks double liquid slurry which is solidified and basically blocks fracturing crack, firstly stopping water-injecting glass, then stopping water-injecting slurry, and opening a pressure-relief gate valve in time. The fracture rock no-slurry-blocking wall compound grouting construction method has the beneficial effects that by normal grouting hole channels and pipelines, the double liquid slurry is pressed to carrying out consolidation to rock bodies near the heading face, simultaneously the double liquid slurry does not block the normal grouting hole channels either, thus achieving the purposes of consolidating the rock bodies near the heading face, then normally grouting single liquid slurry and forming water curtain.

The invention provides a post-treatment purifier for internal combustion engine particle emission, and belongs to the technical field of environmental protection. The purifier is characterized by employing coercive means of circulation to change the exhaust path, so that all the exhaust passes through the filter; at the same time, the purifier employs filter combination with different trapping efficiencies (material, shape, density), so that smoke or / and particles with different particle sizes are respectively trapped to improve the trapping efficiency; and the purifier solves the problem of the surge of exhaust backpressure caused by rapid accumulation of smoke or / and particle in a trap device for internal combustion engine particle discharge of the prior art. Regeneration of particles can be carried out in any continuous or / and intermittent regeneration mode, such as filter catalyst coating, or be combined with other regeneration mode. The purifier reaches an overall filtration efficiency range as wide as 30-90%, and can be used as post-treatment purifier for a variety of internal combustion engine particle emission. After loading on a diesel engine, the particle emission can reach higher than grade four in national standard.

The invention discloses a leakage-proof type temporary blockage additive for a low-pressure thin oil well, which belongs to the field of workover treatment for a thin oil well in petroleum industry. The temporary blockage additive comprise the following raw materials in weight percentage: 0.4-0.6% of hydroxypropyl guar gum, 0.2-0.4% of organic titanium, 5-10% of petroleum resin, 0.3-0.5% of dodecyl dimethyl betaine, 0.1% of sodium sulfite, 0.02-0.04% of ammonium persulfate and 88.5-93.5% of water. The leakage-proof type temporary blockage additive of the invention crosslinks the hydroxypropyl guar gum with the organic titanium to form a gel system, and at the same time adds a certain amount of petroleum resin to form a compound temporary blockage system. The temporary blockage system can immediately break gel without blocking off the oil well, and avoids the accident of stuck pump caused by broken gel fragment. In addition, the leakage-proof type temporary blockage additive has the advantages of no pollution, no harm to a reservoir and low cost.

An automatic guiding trolley with a built-in laser scanner includes a vehicle body and a plurality of wheels, and is characterized in that the interior of the vehicle body includes a driving system, a battery chamber, an electric control system, and a device chamber. The laser scanner is arranged in the device chamber. A plurality of scanning windows are arranged in the vehicle body. The scanning windows and the vehicle body are transparent. The laser emitted from the laser scanner can penetrate the scanning windows. The scanning windows are distributed in an outer wall of the vehicle body and are arranged in the outer wall of the vehicle body. The laser emission height of the laser scanner is consistent with that of the scanning windows. The automatic guiding trolley with the built-in laser scanner has the beneficial effect that by arranging the built-in laser scanner, the whole vehicle space is saved, the safety of the laser scanner is protected, and the dust agglomeration is avoided; the cleaning of the laser scanner is convenient; and the laser scanner is sanitary; the circuit hidden troubles are avoided; the setting height of a reflection plate is reduced and the installation and the management are convenient; the laser emitting height is consistent with the center height of the scanning windows, the laser is controlled to fully penetrate the scanning windows, and blockage will not happen.

The invention relates to a numerical control automatic double-ended tenoning machine, comprising a base which transversally extends, wherein two processing mechanisms which are glidingly and symmetrically connected onto the base, a processing space is formed between the two processing mechanisms, and each processing mechanism comprises an engine base, a main shaft device, a feeding device, a material clamping mechanism, a material pressing mechanism and a material pushing mechanism. The numerical control automatic double-ended tenoning machine is simple and reasonable in structure, the processing space and the main shaft device are isolated effectively, dusts, sawdust and the like are prevented from entering a main shaft box to influence the normal operation of the main shaft device, the service life of the main shaft device is effectively prolonged, producing and maintaining costs are saved, and the processing precision is high.

The invention belongs to the technical field of detection and analysis, and concretely relates to a method for extracting a residual solvent in a packaging material. The extraction method is characterized in that the packaging material is infiltrated in methanol to obtain an extract. The invention also relates to a method for detecting the residual solvent in the packaging material, and a kit for detecting the residual solvent in the packaging material. The extraction method, the detection method and the kit can be used to detect the residual solvent in the packaging material, and also can be used to carry out quality control on the packaging material.

The invention relates to an electromagnetic directional valve which comprises a valve body, a valve element, a valve body end cover and an electromagnet assembly. The valve body comprises a valve body main hole. A spring seat is arranged at one end of the valve element in a sleeving manner. A third valve element boss and a fourth valve element boss are arranged at the two ends of the valve element respectively. An oil pressure balance runner is arranged in the valve body, the two ends of the oil pressure balance runner are located on the outer sides of the two ends of an oil return runner respectively, and the two ends of the oil pressure balance runner are communicated with the valve body main hole. A fifth valve body step and a sixth valve body step are arranged at the two ends of the valve body main hole in the valve body in the axial direction respectively, and located on the outer sides of the two ends of the oil return runner respectively and on the inner sides of the two ends of the oil pressure balance runner respectively. The third valve element boss and the fourth valve element boss at the two ends of the valve element are in sliding fit with the corresponding fifth valve body step and sixth valve body step respectively. The other side of the spring seat can abut against the sixth valve body step and/or the fourth valve element boss. Pollutants can be prevented from entering the electromagnet assembly, use reliability is improved, and the service life is long.

The invention discloses a pressure control type air energy water heater, which comprises a compressor, a four-way valve, a first heat exchanger and a second heat exchanger, wherein the compressor comprises a high-pressure air outlet and a low-pressure air inlet; the four-way valve comprises a connecting port A, a connecting port B, a connecting port C and a connecting port D; a heat exchange pipe is arranged on a pipeline between the high-pressure air outlet of the compressor and the connecting port A; and the heat exchange pipe comprises a first pipe fitting and a second pipe fitting which sleeves the first pipe fitting. A control method of the pressure control type air energy water heater is that an independent water heating mode, a water heating and air cooling mode, a water heating and air warming mode, an independent air cooling mode and an independent air warming mode are switched. The pressure control type air energy water heater and the control method have the advantages that the heating speed is rapid; electric energy is saved; the pipeline pressure is stable; and the operation is smooth and the like; and the pressure control type air energy water heater can independently operate among the water heating function, the air cooling function and the air warming function, and the three functions are freely switched and mutually combined, so convenience and practicability are realized.

The invention discloses a mining vehicle transmission control system. The mining vehicle transmission control system comprises a whole vehicle gas tank, and a first two-position three-way valve communicated with the whole vehicle gas tank, wherein the first two-position three-way valve is communicated with a secondary tank cylinder through a two-position five-way valve; and two gas outlets of the two-position five-way valve are respectively communicated with gas chambers at the two sides of a piston in the secondary tank cylinder for controlling a motion of the secondary tank piston to finish a gear shifting action. The mining vehicle transmission control system provides a control gas way to a 8-gear mining vehicle transmission, guarantees an overgear of the transmission to be only switched with a direct gear through the control of the two-position three-way valve, the two-position five-way valve and a pre-selection valve, effectively controls the secondary tank use frequency, prevents the gear-crossing operation of a secondary tank, reduces the fault rate of a secondary tank synchronizer, guarantees the service life of the secondary tank synchronizer, effectively prevents wrong operations or rule-breaking operations, and guarantees no gear disordering of the transmission.

The invention relates to water conservancy equipment, in particular to irrigation ditch dredging equipment for water conservancy irrigation. By adoption of the irrigation ditch dredging equipment forwater conservancy irrigation, sludge can be used locally, the work intensity of dredging is low, the dredging efficiency is high, and sludge is unlikely to be splashed onto the bodies of workers. Theirrigation ditch dredging equipment for water conservancy irrigation comprises a top plate, supporting rods and the like. The supporting rods are arranged under the left side, the right side, the front side and the rear side of the top plate correspondingly, and the upper ends of the supporting rods are not connected with the top plate. According to the irrigation ditch dredging equipment for water conservancy irrigation, sludge can be used locally, the work intensity of dredging is low, and the dredging efficiency is high; and sludge is primarily collected from ditches through a bucket and then conveyed by a conveying belt so as to be thrown into farmland around, so that sludge is locally used, and sludge in the ditches can be completely cleared away.

The invention discloses a slowly-dropping escape device. The slowly-dropping escape device comprises a pedestal, wherein a damping device casing is installed on the pedestal; the damping device casing is a cylinder which is axially vertical to a pedestal plane; a central shaft is rotatably installed on the damping device casing; a cylindrical rope-winding roll is fixedly installed at one end of the central shaft extending out of the damping device casing; a life-saving rope is wound on the rope-winding roll; the rope-winding roll is rotatably sleeved on the damping device casing; a rope-reeling device is installed on the outer end part of the rope-winding roll; and the central shaft is in transmission connection with a centrifugal damping device and a progressive friction damping device inside the damping device casing. The centrifugal damping device and the progressive friction damping device ensure a slowly-dropping effect and avoid reduction of braking performance caused by reduction of centrifugal and frictional damping performance of a dropping tail section under the condition that the dropping height is relatively high; and after being installed, the volumes of the damping device casing and the rope-winding roll are relatively small, so that winding of the life-saving rope can be prevented and the life-saving rope is more reliable.

The invention relates to the technical field of pest treatment equipment, in particular to a device for quickly treating pests by changes in an air pressure and vibration of objects. The technical problem to be solved by the device is that dead bodies of a large number of macrotermes barneyi are inconvenient to handle. In order to solve the above technical problem, the invention provides the device for quickly treating the pests by the changes in the air pressure and vibration of the objects, the device includes a base, the top of the base is fixedly connected with two support seats and a fixed rod, the tops of the two support seats are fixedly connected through a pest absorption storage device, connecting rods are fixedly connected to the tops of the two fixed rods, and hollow rods are fixedly connected to the corresponding sides of the two connecting rods. The device can quickly trap and kill the macrotermes barneyi by using the pest absorption storage device with a light trap, and the dead bodies of the macrotermes barneyi can be conveniently treated to improve the speed of trapping and killing the macrotermes barneyi.

A readable customization conversion technique comprises the following steps of: performing corresponding processing of web page data described in web page languages in the prior text version; showing a reader contents selected according to specific rules; and displaying the contents in a mode more complying with the reading habits of the reader. The rules for processing the contents are determined by a source URL or associated URL of the web page data. The processing modes of the rules comprise active selection of specific content and redefinition of the formats of display modes.

The invention discloses antibacterial nano-silver melt-blown cloth used for a mask and a preparation process of the antibacterial nano-silver melt-blown cloth. In the preparation process, modified mixed fibers are fluidized by pressurizing hot air to form a fluidized air-solid mixture, and the air-solid mixture serves as traction airflow to be sprayed out from the two sides of a spinneret plate tospray and stretch molten polypropylene; after melt is cooled on a receiving device, basic melt-blown cloth is obtained, a layer of nano inorganic antibacterial particles is fixedly laid on the surfaces of modified bamboo charcoal fibers, the good antibacterial and bacteriostatic effects are achieved, meanwhile, the micropore structure of nano bamboo charcoal cannot be blocked, and therefore the breathability, adsorption property and other properties of the nano bamboo charcoal cannot be affected; small diameter and length reduced graphene oxide on the surfaces of breathable fibers cannot block the surfaces of raw material fibers, and the hydrophobicity of the raw material fibers is improved while the breathability of the raw material fibers is guaranteed; and on one hand, antibacterial coating remedies the influence of the addition of the modified mixed fibers on the aperture of the melt-blown cloth, and on the other hand, the antibacterial performance of the melt-blown cloth is improved.

The invention provides a PLA wood-plastic composite material for 3D printing and a preparation method thereof. the invention is characterized in that the composite material comprises the following ingredients (by weight): 60-100 parts of PLA, 8-30 parts of UHMWPE, 15-20 parts of wood meal, 2-7 parts of a compatilizer, 2-6 parts of a coupling agent, 2-6 parts of a lubricant and 2-5 parts of a flexibilizer. The composite material is low-carbon and environment-friendly, can be 100% recycled, has natural friendliness of wood, will generate natural wood aromatic odor during printing, has good dimensional stability, will not block holes, will not be warping, and has low requirements on processing conditions. In addition, the product has good physical and mechanical properties, acid and alkali resistance, moth bite resistance, strong ultraviolet resistance and weather resistance, etc.

The invention discloses a clothes treating device. The clothes treating device comprises a control panel base, a clothes input opening and an upper cover, wherein the clothes input opening is formed in the control panel base and used for taking and inputting clothes, and the upper cover is located above the clothes input opening and connected with the control panel base and is capable of being overturned backwards so as to uncover the clothes input opening. A display screen is arranged on the portion, behind the clothes input opening, of the control panel base, an observation area is arrangedon the upper cover and used for observing the rear display screen from the front of the upper cover in the uncovering state, control areas for controlling the clothes treating device are arranged on the front side and/or the lateral side of the display screen, the control areas and the display screen form a control panel, and an operation area capable of operating the control areas from the frontof the upper cover in the uncovering state is arranged on the upper cover. According to the clothes treating device with the rear control panel, under the conditions that the upper cover is closed andopened, the operation on the clothes washing procedure can be achieved, and under the condition that the upper cover is opened, the display conditions of the control panel can be observed through a transparent window.

The invention relates to the technical field of a flowmeter, in particular to a rectangular needle tube flowmeter. The rectangular needle tube flowmeter comprises a sleeve, wherein the top of the sleeve is connected with two pressure guide tubes; the pressure guide tubes are also connected with a differential pressure transmitter; a high pressure taking tube and a low pressure taking tube are arranged in the sleeve in a penetrating way; the high pressure taking tube and the low pressure taking tube are communicated with the pressure guide tubes; the bottom of the sleeve is provided with a detecting tube; the bottom of the detecting tube is connected with a probe; the high pressure taking tube and the low pressure taking tube pass through the detecting tube and are communicated with the probe; the probe is of a V-shaped structure. The rectangular needle tube flowmeter has the advantages that the probe is arranged into a V-shaped structure; the incident flow side of the probe is a liquid inlet of the high pressure taking tube; irregular vortexes are formed during medium flow; impurities are driven to flow; further, impurity particles are prevented from entering the probe, the high pressure taking tube and the low pressure taking tube; the anti-blocking performance of the flowmeter is improved; the pressure taking of the flowmeter is stable.

The invention discloses a hand-held electronic device. The hand-held electronic device comprises a body unit and an antenna unit, wherein the body unit is provided with a handle hole; and the antenna unit is arranged in the body unit and encloses the handle hole. By integrating the antenna unit in originally unused space around the handle hole, the antenna unit cannot be limited by limited mechanism space in the body unit; and the front side and the back side of the antenna unit cannot be shielded so that the sensing distance of the antenna unit is greatly increased.