100results about How to "Reasonable and practical design" patented technology

The invention provides a biomass pellet fuel heating appliance, comprising a combustion furnace, a heat exchanger, a central supply system for supplying biomass pellet fuel to the combustion furnace, and a barn; the heat exchanger is used for being connected to one end of a horizontal nozzle of the combustion furnace, the barn includes a heating chamber, the heat exchanger is disposed in the heating chamber, and the combustion furnace and the central supply system are disposed outside the barn; the central supply system is used for providing biomass pellet fuel centrally for more than two combustion furnaces and comprises a suction unit with a vacuum pump, a storage barrel, more than two suction pipes, more than two feed pipes, a screw feeding mechanism, a feeding distribution connector, more than two electromagnetic valves, more than two vacuum buckets and more than two gravity valves. The heating appliance provided herein is reasonable and practical in design, safe and green, and efficient and labor-saving, reduces cost, saves resources, improves work efficiency and enterprise economic benefit, and is suitable for popularization and use.

The invention discloses a three-in-one drilling and flocking machine with a large disk, a flat plate and a rod brush and relates to a structure of a drilling and flocking machine. The three-in-one drilling and flocking machine comprises a machine body workbench, a handpiece placement table, a handpiece left and right movement mechanism, a handpiece up-and-down movement mechanism, a rod brush clamp, a disk clamp and a flat plate clamp, wherein the handpiece placement table, the handpiece left and right movement mechanism, the handpiece up-and-down movement mechanism and the rod brush clamp all are arranged on the machine body workbench; and at most one of the disk clamp and the flat plate clamp is arranged in the middle of the machine body workbench. The three-in-one drilling and flocking machine can meet the modern production requirements of high efficiency, high quality and high grade, and is stable in product performance, powerful in function and simple in operation, and standardized production of parts is implemented.

The invention provides a machine tool for automatically milling two end faces and drilling central holes of a pin shaft. According to the machine tool, central hole drilling and one-outer-circle sleeving and turning are combined into one working procedure, automatic feeding and automatic discharging are carried out, and the production efficiency is greatly improved. The machine tool is mainly composed of a tool frame assembly, an automatic positioning device, an automatic clamping device, an automatic feeding device, an automatic double-face milling device, an automatic central hole drilling and sleeving-turning device and an automatic discharging device. The machine tool is reasonable and practical in design, two-end-face milling, central hole drilling and one-outer-circle sleeving and turning are combined into one working procedure, automatic feeding and automatic discharging are achieved, the speed is high, labor and time are saved, the concentricity of the central holes of the two ends is high, the grinding allowance is small, the production efficiency and the economic benefits of an enterprise are improved, the quality of a machined product is excellent, and the machine tool particularly meets the large-scale production requirement.

The invention provides an environment-friendly carbon-hydrogen solvent low-pressure hydrogenation dearomatization reactor and a catalyst packing method. The method of layered matching packing of porcelain balls of different grain diameters and catalysts of different grain diameters and different shapes is adopted, material short pass or bed layer sinking can be prevented, fluid distribution and pressure drop in a catalyst bed layer are effectively improved, distribution and mixing effects of a hydrogen cooling system are enhanced, a reaction medium and a catalyst contact evenly, the medium in the reactor flows uniformly, and the reactor size is reduced on the whole, so as to guarantee an optimum depth and speed of hydrogenation dearomatization reaction, improve yield of ideal components, reduce device investment and product processing cost and improve comprehensive utilization added value of light dydrocarbon raw materials. The environment-friendly carbon-hydrogen solvent low-pressure hydrogenation dearomatization reactor has the advantages of being high in reaction efficiency, high in production capacity, convenient to manufacture and maintain and is intelligent in temperature control; and after fractionation, the purity of an alkane product is 99% or above.

The invention provides a soil covering type broadcast seeder. The soil covering type broadcast seeder is mainly composed of traveling wheels, a guiding rotating shaft, a soil conveying trough, a soil conveying mechanism, a soil feeding rotating roller, an outer power input shaft, a main input box, a rack, seed bins, conveying pipes, a fertilizer bin and a seed broadcast roller. Seeds are evenly broadcast through the guiding rotating shaft and the seed broadcast roller, and then the seeds are covered with mixed soil through the soil feeding rotating roller and the soil conveying mechanism via the soil conveying trough. The broadcast seeder increases the number of seedlings, the single yield per mu of wheat is increased by more than 1/3, and the problems that a traditional ridge sowing planting mode is used for a long time and consequently the yield of wheat is low, cost is high, expenses are high and earnings are low is solved thoroughly. The broadcast seeder reduces land wastage and effective consumption of various resources; higher earnings are obtained when the same investment is used. The broadcast seeder is reasonable and practical in design, so that seeding and soil covering are completed at a time, labor and time are saved, straw in fields is smashed while the seeds are broadcast, the straw serving as green manure is fully applied to soil, and the ecological environment is protected.

The invention provides a high-pressure, oxygen-free, yield-increasing and plug-release gas injection device of a CBM (Coal Bed Methane) well. The invention has the technical scheme that the high-pressure, oxygen-free, yield-increasing and plug-release gas injection device mainly consists of an internal combustion engine (1), a hydraulic clutch (2), a compressor (3), a fuel tank (4), a purification filter (5), gas transmission pipes (6), a dosing tank (7), a control cabinet (8) and a skid-mounted cabinet (9), wherein the internal combustion engine (1) is connected with the compressor (3) through the hydraulic clutch (2) and is connected with the compressor (3) through one gas transmission pipe (6); the compressor (3) is connected with the purification filter (5) through one gas transmission pipe (6); the fuel tank (4) is arranged above the purification filter (5); one gas transmission pipe (6) is connected with the dosing tank (7); the control cabinet (8) is arranged above the dosing tank (7). The invention also provides multiple steps of a using method of the high-pressure, oxygen-free, yield-increasing and plug-release gas injection device. According to the high-pressure, oxygen-free, yield-increasing and plug-release gas injection device of the CBM well and the using method, provided by the invention, the design is reasonable and practical, the cost is low, the operation is simple and convenient, more methane is replaced through injecting gas in a CBM reservoir, the yield of CBM is greatly increased, and a higher promotion and application value is obtained.

The invention provides a wall decoration process. According to the technical scheme, plastic expansion bolts (16) and anti-falling fixing screws (17) are used for fixing anti-slip tooth openings (7) to a wall (18), punching positioning openings (6) are formed in the inner sides of the anti-slip tooth openings (7) which are also provided with adjusting sawtooth openings (8), and the anti-slip tooth openings (7) are connected with a wall decoration profile (1); a splicing clamping opening (5) is formed in the wall decoration profile (1), and a rubber strip clamping opening (4) is formed in one side of the wall decoration profile (1); the upper portion of a decoration process cover (3) is connected with a plate outer clamping strip (2), and the lower portion of the decoration process cover (3) is connected with a silicone sealant shell nosing (15) which is connected with a skirting line (14); a surface layer and EPS board bonding layer (11) is arranged on the outer side of a heat insulation board (12), and a decoration surface layer (10) is arranged on the outer side of the surface layer and EPS board bonding layer (11); and double-faced adhesive tape (9) is arranged at the joint of the heat insulation board (12) and the anti-slip tooth openings (7), and a structural adhesive point (13) is arranged at the joint of the wall (18) and the heat insulation board (12). According to the wall decoration process, the design is reasonable and practical, site assembling is convenient and rapid, energy is saved, and the environment is protected.

The invention discloses a security anti-theft door, which comprises a wall, a door shaft, a key hole, a sub-door handle, a sub-door, a sub-door shaft, a camera, a door, a buffer pad, a peephole, a display screen, a door handle, a rack and a gear , door latch, fireproof layer, sound insulation layer, waterproof layer and sub-door latch, the peephole is installed on the central axis of the gate and is located at the upper part, the gate is a thickened structure, from the inside to the waterproof layer, the sound insulation layer and the fireproof layer , the door handle is installed on the lower side of the other side of the door, and a door lock is also provided under the door handle, the rack is connected to the upper surface of the door bolt by welding, and the gear is fixed on the front of the rack. above, and the gear and the rack are meshed and connected inside the gate, the two ends of the central axis of the gear are sleeved on the bearings, and the bearings are fixed on the inner walls of both sides inside the gate, the axis position of the central axis of the gear is set There is a keyhole.

The invention relates to winding equipment. Two cylindrical jig shafts are arranged correspondingly on an equipment frame, one cylindrical jig shaft is connected with a first translation driving mechanism, the two cylindrical jig shafts are the same in rotating direction, and the opposite inner ends of the two cylindrical jig shafts are each provided with a jig mold; a jig mandrel is arranged in the other cylindrical jig shaft, wherein the front end of the jig mandrel is sleeved with the corresponding jig mold at the inner end of the cylindrical jig shaft, the jig mandrel is connected with a second translation driving mechanism, the front end of the jig mandrel can stretch outside the forming face of the jig mold arranged at the front end of the jig mandrel in a sleeving mode and make contact with the forming face of the other jig mold, a line pressing and cutting mechanism is arranged between the front end of the jig mandrel and the other jig mold, and a stripping mechanism is arranged on the two jig molds or any jig mold and can make a hollow coil between the two jig molds break away from the forming faces of the two jig molds or the forming face of any one jig mold.

The invention provides a production method for a rubber-plastic subsea pipeline which is simple in structure and has a good use effect, and a connection structure for the subsea pipeline. The production method comprises the steps of producing a metal-glass fibre reinforced plastic composite tube at first, and then inserting a rubber-plastic tube in the metal tube to form a three-layer composite tube. The connection structure mainly comprises a lining rubber-plastic tube (1), a glass fibre reinforced plastic layer (2), a metal tube end external thread (3), a travelling buckle internal thread sleeve (4), an inner-layer rubber-plastic boss (5), annular sawteeth (6) and a metal tube end annular boss (7). The connection structure provided by the invention is reasonable and practical in design, metal-glass fibre reinforced plastic lining rubber-plastic subsea pipelines can be easily and simply butted, and the problems of corrosion and abrasion of the subsea pipelines are avoided, the properties of water resistance, heat insulation, rapid construction, rapid repair, external force damage prevention and the like of the subsea pipelines are achieved, and thus the running cycle of the pipelines is prolonged to 50 years.

The invention provides an oil sampling apparatus of a nitrogen-filled oil-immersed transformer and an oil sampling method. The nitrogen-filled oil-immersed transformer comprises a transformer and is characterized in that an oil drain valve pipeline of the transformer is provided with a pressure gage and a stop valve, a nitrogen cylinder is connected with a pipeline located between the pressure gage and the stop valve through a connection pipe, and the connection pipe is equipped with a nitrogen valve. According to the invention, improvement is made on the basis of an original oil drain valve pipeline, so the problem that an oil sample cannot be taken out due to ageing of an insulating material caused by suck-back of air into the interior of the transformer easily occurred during oil sampling of the nitrogen-filled oil-immersed transformer is overcome; the oil sampling apparatus provided by the invention has reasonable and practical design, is simple to operate and convenient and fast in oil sampling, substantially improves reliability and security and only takes 5 min in the whole operation; moreover, a reconstructed pipeline part can be integrally or partially dismounted and movably used, so the oil sampling apparatus is applicable to oil-immersed transformers filled with gas.

The invention provides a fixing pillow for preventing complications of an upper limb of an affected side of a stroke patient. A groove (3) of which the shape is similar to that of an arm of a human body is formed in the middle of the fixing pillow (1) in the length direction; a four-finger-shaped groove (4) which is connected with the groove (3) is formed in the front end of the groove (3); a first thumb groove (2) and a second thumb groove (2') are respectively formed in two sides of the four-finger-shaped groove (4); a first air bag (5) and a second air bag (5') are respectively arranged on two sides of the rear end of the groove (3); an upper hook-and-loop fastener (6) and a lower hook-and-loop fastener (61) are respectively arranged on the tops of the front end and the rear end of the groove (3); and finger hook-and-loop fasteners (62) are respectively arranged on the first thumb groove (2), the second thumb groove (2') and the four-finger-shaped groove (4). The fixing pillow for preventing the complications of the upper limb of the affected side of the stroke patient has the advantages that materials are collected conveniently, the fixing pillow is easy to manufacture and convenient to use, the upper limb of the affected side of the stroke patient can be kept at a good position for a long time, and a series of complications of the upper limb of the patient are prevented well.

The invention discloses a detection box for domestic drinking water, which comprises a base. The upper side of the support boss is provided with a support boss, and the middle position of the upper side of the support boss is provided with a through groove. A control switch, two groups of lighting lamps are symmetrically distributed on the side of the base close to the control switch, the output terminals of the control switch are respectively electrically connected to the lighting lamps and the input terminals of the water quality detector, through the left box body and the right box body The flip design on both sides of the base can provide convenience for the staff to conduct on-site testing of domestic water. The design of the sample storage tank and waste collection box is reasonable and practical, and the operation is simple, which reduces the work difficulty and labor intensity of the sanitation testing personnel.

The present invention provides a full set of equipment to make use of a heat processing reduction method to produce regeneration activated carbon, the technical program is as follows: the equipment mainly comprises a raw material pretreatment machine (1), a magnetic separation iron removal machine (2), a raw material crusher (3), a metering feeder (4), a heating furnace (5), an electronic control and temperature control operating console (6), a cleaner (7), a first fan (8), a chimney (9), a first-stage cooler (10), an automatic screening machine (11), a second-stage cooler (12), a finished product packaging machine (13), a dust separator (14), a second fan (15), a third fan (16), a 1# deodorizer (17 ), a fourth fan (18) and a 2# deodorizer (19). The equipment is reasonable and practical in design, safe, environmentally-friendly, efficient and effort-saving, reduces cost, saves resources, enhances the economic efficiency and economic benefits of enterprises, and is suitable for widespread promotion and use.

The invention provides an internal combustion engine power self-propelled lotus root picking machine adopting a compressed air injection and suction type spraying head. According to the technical scheme, the internal combustion engine power self-propelled lotus root picking machine is mainly composed of water spraying frame shoe plates (1), the injection and suction type spraying head (2), an air conveying pipe (3), an air dividing cylinder (4), a main air conveying pipe (5), an air compressor (6), an air compressor coupler (7), an internal combustion engine (8), a speed reducer (9), a gearbox (10), a differential mechanism (11), a triangular belt drive device (12), walking wheels (13), a keel (14), a case (15), a spraying head lifting device (16), a spraying head rack (17), a treading face (18), spokes (19), a water stirring plate (20), connecting devices (21), hubs (22), rubber wheel gear racks (23), an air pipe connector (24), a fixed plate (25), water inlet holes (26), a water-gas mixing chamber (27) and a filter screen (28). The internal combustion engine power self-propelled lotus root picking machine has the advantages of being reasonable and practical in design, high in work efficiency, more attractive in product and suitable for wide application and popularization, saving time and labor, increasing the yield and improving quality.

The invention discloses a head device for a 3D printer. The printer comprises a linear bearing which sleeves a cross optical shaft of the 3D printer and a head carrier which sleeves the linear bearing, the bottom of the head carrier is connected with a motor fixing frame through a connecting column, the motor fixing frame comprises a motor upper bracket and a motor lower bracket on an outer wall of one side of the motor upper bracket, the same motor is fixed on the motor upper bracket and the motor lower bracket, the output shaft of the motor is sleeved with a feeding wheel, the outer wall ofthe motor lower bracket is connected with a driven wheel which meshes with the feeding wheel, the bottom of the motor lower bracket is connected with a hollow throat, the upper outer wall of the hollow throat is provided with heat dissipating blocks which are equidistantly distributed, and the lower portion of the hollow throat is sleeved with a heating block. The device runs more smoothly, can quickly load and unload materials, has smooth silk output, feeds a silk at the proximal end, is beneficial to the withdrawal of the consumables, can reduce the drawing phenomenon, and has better printing effect, the hollow throat is durable, and the heat dissipation performance is good.

The invention provides a novel hose clamp which is simple in structure and good in use effect. The technical scheme includes that the novel hose clamp is characterized in that a handle (2) is arranged at the top of a clamp body (1) and is fixedly connected with a screw rod (3), the screw rod (3) is connected with a push block (5) via a square screw fixing block (4), a groove-rotatable device (6) is arranged on the lower portion of the push block (5) and is connected with a pressure steel sheet (7), a fixed point (8) is arranged between the push block (5) and the pressure steel sheet (7), and an outer ring device (9) is arranged on the lower portion of the clamp body (1). The novel hose clamp is reasonable and practical in design, strong in intensity, even in stress, tight in sealing, less prone to damaging rubber pipelines, long in service life, time-saving, labor-saving and suitable for wide popularization and use, maintenance time is shortened, working efficiency is improved, and valuable energies are saved.

The invention discloses an auxiliary stirring transmission connection device for a mixing and stirring tank. The auxiliary stirring transmission connection device comprises a main stirring shaft in a vertical direction and an auxiliary stirrer shaft in a horizontal direction, wherein a bevel gear wheel II is fixedly connected to the main stirring shaft; a bevel gear wheel I is fixedly connected to one end of the auxiliary stirrer shaft; and the bevel gear wheel II and the bevel gear wheel I are meshed, so that the axial rotation of the main stirring shaft drives the axial rotation of the auxiliary stirrer shaft in the horizontal direction. According to the device, transverse auxiliary stirring linkage at the intersection of main stirring and auxiliary stirring is realized by virtue of the bevel gear wheels, auxiliary stirring of the mixing and stirring tank is realized without a driving motor, and the auxiliary stirring transmission connection device is simple in structure and reasonable and practical in design.