43results about How to "Uniform contact area" patented technology

The invention relates to an energy-saving apparatus of air swept type central air-conditioner, especially a novel energy self-supplying numerical control energy-saving apparatus using air swept type central air-conditioner draught fan air exhausting wind power generation. The apparatus comprises a spray water cooling device, a digital control box, and an air injection temperature elevating apparatus, power self-generating apparatus, a water treatment and conveying apparatus, the air injection temperature elevating apparatus arranges an air injection showerhead in front of the condenser heat radiation fins of the air swept type central air-conditioning units, the air injection showerhead is mounted on the air supply pipe in series, the spray nozzle of the air injection showerhead faces to condenser heat radiation fins, the wind-driven generator is mounted on the draught fan air outlet on the top of the air swept type central air-conditioning units by a wind-driven generator bracket. The invention can supply self-generating power to generate cooling water to reduce temperature of the condenser heat radiation fins in condition of consuming little water and not increasing any power consumption, and can supply self-generating power to generate hot wind to increase temperature of the condenser heat radiation fins in winter, thereby achieving economy of electric power consumption.

The invention relates to a heat management system and method of a cylindrical battery pack. The heat management system of the cylindrical battery pack comprises an anomalous heat-conducting plate, a micro-heat tube array plate and a heat source. When dissipating heat, the planar structure of the plate surface of the anomalous heat-conducting plate is stuck with an evaporation section of the micro-heat tube array plate, and the evaporation section of the micro-heat tube array plate after absorbing the heat energy of the cylindrical battery pack delivered by the anomalous heat-conducting plate is subjected to a heat tube effect, and then heat exchange with the outside is carried out by the condensing section of the micro-heat tube array plate; when pre-heating, a heat source is arranged at the evaporation section of the micro-hot tube array plate, the planar structure of the plate surface of the anomalous heat-conducting plate is stuck with the condensing section of the micro-heat tube array plate, the evaporation section of the micro-heat tube array plate after absorbing the heat energy of the heat source is subjected to the heat tube effect, then the heat is discharged through the condensing section of the micro-heat tube array plate and then the heat is conducted to the cylindrical battery pack through the anomalous heat-conducting plate. The heat management system integrates a heat dissipation function and a heating function, guarantees uniform temperature of the cylindrical battery pack, is high in heat conduction efficiency, compact in volume and light in weight, and improves the heat exchange efficiency and effect.

The invention relates to an energy-saving environment-friendly barbecue oven which comprises an oven body. A combustion furnace is arranged in the oven body, a feeding hopper is arranged on one side of the oven body and is connected with the combustion furnace through a fuel feeding mechanism and an ignition combustion mechanism, the oven body is composed of an upper cover and a base, a barbecue cavity is formed between the upper cover and the base, a grill is arranged in the barbecue cavity, and an oblique oil collecting plate is arranged under the grill. The oil collecting plate comprises an upper end and a lower end. An oil outlet nozzle is arranged on the side, at the lower end of the oil collecting plate, of the oven body of the barbecue oven. A basket is hung on the oil outlet nozzle. The oven body is provided with a feeding opening, a cover plate movably connected with the upper cover is arranged on the feeding opening, and a handle is arranged on the cover plate. A chimney communicated with an inner cavity of the oven body is arranged on one side of the oven body, a smoke exhaust fan is arranged at the end of the chimney, and a plurality of dust collecting plates are disposed on the pipe wall of the chimney. Automatic fuel supply, oxygen supplement and purification of combustion smoke and dust are achieved, and energy conservation and environmental protection are achieved.

The invention discloses a resistor with a stable structure. The resistor comprises a plurality of resistor sheets which are parallel and mica string rods for stringing the plurality of resistor sheets together. A plurality of separators are stringed by the mica string rods. The separators comprise ceramic sleeves and conductive rings which are mutually spaced. The resistor sheets are axially and jointly clamped by adjacent ceramic sleeves and conductive rings. The plurality of resistor sheets are connected in series by the conductive sheets. Locking elements for applying axial clamping force to the separators are arranged at two ends of the mica string rods, so the resistor sheets are clamped; axially convex and concave embedded clamping structures are arranged between the adjacent ceramic sleeves and the conductive rings; and the convex and concave embedding parts resist radially and mutually. Compared with the prior art, the resistor has the advantages that the clamping structures are arranged between the adjacent ceramic sleeves and the conductive rings, so the conductive rings can be axially and radially limited, the conductive rings can be effectively prevented from moving axially and radially in a transportation or use process, the contact areas between different resistor sheets and conductive rings are guaranteed to be balanced, and a resistor value is stable.

A polishing pad may include a base and a plurality of polishing protrusions on a surface of the base. Each polishing protrusion may include a sidewall defining an opening in a surface of the polishing protrusion opposite the base. In addition, portions of the sidewall opposite the base may define a contact surface.

A VCSELNECSEL array design is disclosed that results in arrays that can be directly soldered to a PCB using conventional surface-mount assembly and soldering techniques for mass production. The completed VCSEL array does not need a separate package and no precision sub-mount and flip-chip bonding processes are required. The design allows for on-wafer probing of the completed arrays prior to singulation of the die from the wafer. Embodiments relate to semiconductor devices, and more particularly to multibeam arrays of semiconductor lasers for high power and high frequency applications and methods of making and using the same.

A polishing pad may include a base and a plurality of polishing protrusions on a surface of the base. Each polishing protrusion may include a sidewall defining an opening in a surface of the polishing protrusion opposite the base. In addition, portions of the sidewall opposite the base may define a contact surface.

The invention relates to a railway crane. The railway crane comprises two bogies, a bottom frame, a rotating table, a stretchable lifting arm and a supporting mechanism, wherein the bottom frame is arranged at the upper ends of the two bogies, the rotating table is rotatably arranged at the upper end of the bottom frame, one end of the stretchable lifting arm is connected with the rotating table,the supporting mechanism is connected with the bottom frame, the lifting arm comprises at least two expansion joints, in every two adjacent expansion joints, a bearing area is formed at the lower partof the inner wall of the end, facing the inner expansion joint, of the outer expansion joint, a cross section of each bearing area is arc-shaped, and a plurality of sliding blocks are arranged in parallel along the circumferential direction of each bearing area. According to the railway crane, the dead weight can be effectively reduced, so that the railway crane can be suitable for carrying out rescue operation on a high-speed railway bridge and line, the rescue time can be effectively shortened, and the rescue requirements can be met.

The invention discloses a planetary gear with multiple sections of micro conical cylindrical face inner holes. The gear inner hole comprises the multiple sections of micro conical cylindrical face inner holes; the gear inner hole is gradually increased in inner diameter from the end close to a planet carrier to the other end away from the planet carrier; and the larger head of the previous sectionof micro conical cylindrical face inner hole and the smaller head of the next section of micro conical cylindrical face inner hole are connected and consistent in inner diameter. The invention further comprises a design method of the planetary gear with multiple sections of micro conical cylindrical face inner holes. The planetary gear with multiple sections of micro conical cylindrical face inner holes and the design method thereof have the benefits as follows: after the planetary gear is loaded and the cantilever planet wheel shaft produces an elastic deformation, both the contact area andthe pressure distribution between the inner hole face and multiple rows of roller pins are uniform, the influence of unbalanced pressure loading between the inner hole face and the roller pins is avoided, the stable operation of the planetary gear is ensured, the adverse friction between the gear inner hole and the roller pins during the rotating process is reduced, the local heating defect is reduced, and the surface contact fatigue lives of the roller pins and the inner hole face are prolonged.

The invention belongs to the field of medical instrument, and more specifically relates to a dental instrument and surgical instrument sterilizer. The dental instrument and surgical instrument sterilizer comprises a pedestal and an upper cover connected with the pedestal via threaded connection; the pedestal comprises a motor chamber, a motor arranged in the motor chamber, a battery arranged in the motor chamber, a heating disc arranged on the top end of the motor chamber, a supporting block arranged on the heating disc, a rotating shaft which is arranged on the supporting block and is connected with a motor shaft, a fixing seat arranged on the rotating shaft, and a switch used for controlling the heating disc and the motor; the upper cover comprises a cover, a height adjusting net movably connected with the internal upper end of the cover, and an air escape valve and a pressure limiting valve which are arranged on the top of the cover; the side wall of the motor is provided with a controller; the controller is connected with the pressure limiting valve and the motor; the controller is used for controlling the operation states of the motor based on pressure signals from the pressure limiting valve. The dental instrument and surgical instrument sterilizer is small in size, is portable, and can be used for sterilization of surgical instrument and tableware conveniently.

The invention discloses a cleaning brush, which comprises a main body (1), wherein more than one brush body (2) is arranged on the main body (1); an inlet, which gets into communication with high-pressure fluid, is arranged in one end of the brush body (2), and an outlet, from which the high-pressure fluid is sprayed out, is sealed or arranged in the other end of the brush body (2); and the brushbody (2) gets expanded as the high-pressure fluid is inputted into the brush body via the inlet and makes into contact with a cleaned surface. The cleaning brush provided by the invention has the advantages of being simple in structure, convenient to use, good in scrubbing effect, capable of protecting the cleaned surface from getting damaged and the like.

The invention discloses a cover of a gas exhaust tail gas treatment device, wherein a cover body is in the shape of a cup; the inner side edge of the cover body is provided with a sunken pit; the outer side edge of the cover body is provided with an extension part; and the extension part is downwards extended, and is in the shape of a step. The invention further discloses a stamping mould of the cover of the gas exhaust tube tail gas treatment device, wherein the upper end surface of the lower mould base is provided with a molding piece; the molding piece surrounds a top block; the upper end of the inner side of the molding piece is provided with a piece slot; the piece slot is in the shape of a step; the lower end of the outer side of an upper molding block is provided with a molding block slot matched with the piece slot in shape; after mould closing, a predetermined gap is formed between the piece slot and the molding block slot, and a predetermined gap is formed between the upper molding block and the top block. According to the cover, once the extension part is additionally arranged, the cover is subjected to stamping by many times while the thickness and the curvature of the cover are controllable, so that stress of the cover is guaranteed; and the step-shaped extension part is arranged for increasing the contact area between the cover and the tail gas treatment device, so that the cover and the gas exhaust tube tail gas treatment device can be locked better.

The invention discloses a coke tower top oil-gas line anti-coking device, and relates to the technical field of oil-gas line anti-coking equipment.The coke tower top oil-gas line anti-coking device comprises a tower top oil-gas line and a coke tower, auxiliary gas outlet pipes are symmetrically and fixedly connected to the two sides of the tower top oil-gas line, and transverse gas outlet pipes are fixedly connected to the tops of the auxiliary gas outlet pipes and the top of the tower top oil-gas line; disks are fixedly connected to the bottoms of the auxiliary gas outlet pipe and the tower top oil gas line, cavities are fixedly formed in the discs, quenching oil is arranged in the cavities, a driving assembly is arranged in the tower top oil gas line, connecting pipes are fixedly connected to the bottoms of the discs, the connecting pipes are fixedly connected with the coke tower, and conical gas inlet cavities are fixedly formed in the connecting pipes. And a sealing plate is connected to the interior of the gas inlet cavity in a sealed mode, a plurality of gas outlet assemblies are arranged on the sealing plate, lead screws are fixedly connected to the tops of the gas outlet assemblies, and lead screw sleeves are rotationally connected into the cavities.

The invention discloses a positioning frame for radiotherapy head, neck and shoulder positioning, which comprises a bottom plate, a frame, a locking device and a positioning film. A rectangular grooveon the frame has a fixing hole corresponding to the positioning hole of the bottom plate, and a U-shaped sliding block and the rectangular groove form a moving pair; a locking pin of the locking device comprises a pin body and a concave frame. The diameters of the pin segments on the pin body are increased from top to bottom, and the upper pin segment is connected to the concave frame through a pulling shaft, the concave frame has a pulling rod, the diameter of the lower pin segment is between the diameter of a body hole and the diameter of a counterbore, and the length of the lower pin segment is smaller than the length of the counterbore; the fixing hole allows the concave frame to pass, pushes the U-shaped sliding block to the two sliding for covering a part of the fixing hole, and a uncovered intermediate portion of the fixing hole allows the pin segment of the upper portion of the pin body to pass and does not allow the concave frame to pass. The invention also provides an application method of the positioning frame. The positioning frame adopts a lifting, pressing, locking and fixing manner, the operation is simple and convenient, and the repeated positioning is accurate.

The invention relates to an energy-saving apparatus of air swept type central air-conditioner, especially a novel energy self-supplying numerical control energy-saving apparatus using air swept type central air-conditioner draught fan air exhausting wind power generation. The apparatus comprises a spray water cooling device, a digital control box, and an air injection temperature elevating apparatus, power self-generating apparatus, a water treatment and conveying apparatus, the air injection temperature elevating apparatus arranges an air injection showerhead in front of the condenser heat radiation fins of the air swept type central air-conditioning units, the air injection showerhead is mounted on the air supply pipe in series, the spray nozzle of the air injection showerhead faces to condenser heat radiation fins, the wind-driven generator is mounted on the draught fan air outlet on the top of the air swept type central air-conditioning units by a wind-driven generator bracket. The invention can supply self-generating power to generate cooling water to reduce temperature of the condenser heat radiation fins in condition of consuming little water and not increasing any power consumption, and can supply self-generating power to generate hot wind to increase temperature of the condenser heat radiation fins in winter, thereby achieving economy of electric power consumption.

The invention relates to a trolley conductor collector applied to unbalance loading and curve places, and provides a passive mechanical arm collector, which passively keeps an electric brush working surface and a trolley conductor working surface having balanced powered areas according to the conditions of the trolley conductor working surface. The collector comprises a trolley, a conductive band, a current collection arm and a blocky electric brush keeping in contact with a trolley conductor. In the collector, an additional passive mechanical device is arranged between the current collectionarm and the electric brush to regulate the working conditions of the electric brush by acquiring position information in real time. The current collection arm is provided with two connecting parts relative to a 'base' or shell, a pressure rod can oscillate in an XZ coordinate plane and an oscillating rod can oscillate in a YZ plane, so that a contact area is balanced and pressure is balanced. By the passive mechanical arm collector, stable power transmission is ensured, and simultaneously, the electric brush can be ensured not to be deviated and separated from the trolley conductor and changethe contact area to further improve the running safety, stability and reliability of equipment.

The invention relates to the field of yarn tension adjustment, in particular to a yarn tension adjusting mechanism of a warp knitting machine, the yarn tension adjusting mechanism comprises a transition roller, an adjusting roller or a driving roller, and the adjusting mechanism comprises at least one of the transition roller, the adjusting roller or the driving roller or a combination of more than two rollers. Yarn is in a curve shape after bypassing the transition roller, the adjusting roller and the driving roller in sequence, the yarn can be pulled through rotation of the driving roller, the tension of the yarn is uniform, meanwhile, the distance between the adjusting roller and the transition roller relative to the driving roller is adjusted through the adjusting device, the contact area between the yarn and the driving roller as well as the contact area between the adjusting roller and the transition roller are adjusted, so that the tension for pulling the yarn can be correspondingly adjusted, the tension of the yarn can be more uniform, and the phenomenon of 'vertical lines' of cloth is avoided.

The invention relates to a filter for a water-purification device and the water-purification device including the filter. Disclosed is a filter for a water-purification device, the filter including a filter housing having a water inlet and a water outlet defined therein; and a filter member disposed in the filter housing to purify water introduced through the inlet and supply the purified water to the outlet, wherein the filter member includes a carbon block produced by mixing 40 to 50% by weight of titanium oxide, 30 to 40% by weight of activated carbon, and 18 to 23% by weight of binder with each other. Further, a water-purification device including the filter is disclosed.

The invention discloses an anti-tempering automatic deslagging boiler. The boiler is characterized in that a combustion chamber is arranged at the bottom of a water tank main body and is positioned inthe middle of two water tank supporting legs; a grate driving speed reducing motor, a motor output rotating disc, an eccentric shaft and a transmission connecting rod are all arranged in an air cavity, and are positioned at the second side end of the air cavity; the motor output rotating disc is fixed on an output shaft of the grate driving speed reducing motor; the eccentric shaft is fixed on the disc surface of the motor output rotating disc; the first end of the transmission connecting rod is hinged to the eccentric shaft, and the second end of the transmission connecting rod is hinged toa grate assembly; a rotary type fuel feeder is fixed on a first end pipe opening of a feeding pipe and communicates with the pipe opening at one end of the feeding pipe, and meanwhile, the rotary typefuel feeder is arranged at the bottom of a fuel outlet of a fuel bin and communicates with the fuel outlet; and the feeding pipe penetrates through the side wall of the combustion chamber, and a pipeopening of the second end of the feeding pipe communicates to the grate assembly. According to the anti-tempering automatic deslagging boiler, the combustion efficiency and the safety performance areimproved at the same time.

The invention relates to a roller way mechanism used for conveying calendered flat plate glass. A front transmission chain and a back transmission chain which are in parallel arrangement are used fordriving a roller in a roller way, so that a load required for roller driving is distributed onto two transmission chains, so that the load required to be borne by each transmission chain is smaller; therefore the specification of the front transmission chain and the back transmission chain can be small, so that the installing space of the transmission mechanism can be further reduced. Therefore the space between rollers in the roller way can be further reduced; the contact area between the glass plate and the rollers can be larger and more uniform; the glass plate cannot easily deform, so thatthe flatness degree of the produced glass plate can be improved.

The invention relates to an auxiliary welding active agent and a novel nut projection welding method for enhancing welding penetration. The auxiliary welding active agent comprises the following steps: 1) first, blending and forming the active agent by powder and a binder in a mass ratio of 1: (4-6), and then diluting the active agent by using acetone at a proportion of 1(1.5-3): 1, wherein the powder is prepared from the following components in percent by mass: 50-60% of carbon black, 4-10% of CaF2, 16-25% of TiO2 and 15-27% of Mn; 2) putting the prepared active agent in a special active agent box; 3) mounting the active agent box on a conveying structure of a nut conveyor; and 4) carrying out nut projection welding, wherein a nut passes the active agent box in a conveying process, so that the active agent is dipped in nut projection welding. The welding penetration can be improved greatly, the consistence of multi-emboss welding of the nut is improved, forming defects such as pseudosoldering and splashing are improved, and high-efficiency nut projection welding is achieved. The method reduces the probability of pseudo soldering greatly, cancels a repair welding step, improves the welding efficiency, reduces the energy consumption, saves the cost, and improves the welding quality of nut projection welding greatly.

The invention relates to a trolley conductor collector applied to unbalance loading and curve places, and provides a passive mechanical arm collector, which passively keeps an electric brush working surface and a trolley conductor working surface having balanced powered areas according to the conditions of the trolley conductor working surface. The collector comprises a trolley, a conductive band, a current collection arm and a blocky electric brush keeping in contact with a trolley conductor. In the collector, an additional passive mechanical device is arranged between the current collectionarm and the electric brush to regulate the working conditions of the electric brush by acquiring position information in real time. The current collection arm is provided with two connecting parts relative to a 'base' or shell, a pressure rod can oscillate in an XZ coordinate plane and an oscillating rod can oscillate in a YZ plane, so that a contact area is balanced and pressure is balanced. By the passive mechanical arm collector, stable power transmission is ensured, and simultaneously, the electric brush can be ensured not to be deviated and separated from the trolley conductor and changethe contact area to further improve the running safety, stability and reliability of equipment.

A micro heating plate based on a porous silicon insulation layer and a preparation method thereof are provided, which belong to the technical field of silicon-based heating plates for gas sensors. The micro heating plate includes, sequentially from top to bottom, an electrode group, a porous silicon layer, a silicon dioxide layer, and a silicon base. The electrode group includes a heating electrode and a signal electrode. The heating electrode is snake-shaped. The signal electrode is an interdigital electrode. The interdigital bulges of the signal electrode are in the depressed portions of the snake shape of the heating electrode. The heating electrode and the signal electrode do not contact each other. A novel porous silicon insulation layer material replaces the existing silicon dioxide and silicon nitride insulation layer material. The silicon base released by a bulk silicon processing technology is used, and the silicon base is prepared through backside silicon etching. The contact area between the insulation layer and the air is increased. Dissipation of heat on the heating plate can be greatly reduced. The micro heating plate has the advantages of small size, high sensitivity, low cost, low power consumption, easy batch production, strong mechanical and electrical performance, stable processing technology, and the like.

The invention provides a low-altitude flight unmanned aerial vehicle. The low-altitude flight unmanned aerial vehicle comprises a main body, a supporting arm is fixedly arranged on the outer side of the main body, and a propeller driven by a motor is arranged at the tail end of the supporting arm; an integrated circuit board is arranged in the main body; a center block is arranged at the bottom ofthe body, a bearing arc-shaped strip extending to the position below the supporting arm is arranged on the outer side of the center block, a buffer spring is arranged in the center block, and a roller bead extending to the position below the center block is movably connected to the bottom of the buffer spring; and an air inlet communicated with the cavity is formed in the side face of the main body, and a plurality of sets of air outlet pipes penetrating through the bottom of the main body are evenly arranged in the cavity. According to the low-altitude flying unmanned aerial vehicle, in thetakeoff and landing process of the unmanned aerial vehicle, the contact area between the four sets of bearing arc-shaped strips and the bottom face is uniform, so that the unmanned aerial vehicle is more stable in the takeoff and landing process, and the appearance of the unmanned aerial vehicle cannot deviate; and the air inlet, the cavity and the air outlet pipes form an air channel, so that theinfluence of air resistance on the flight of the unmanned aerial vehicle is effectively reduced.

The invention discloses a raw material stirring device for an agricultural feed, and relates to the technical field of agriculture. The invention mainly aims to solve the problem that an existing rawmaterial stirring device for agricultural feed is poor in stirring effect. The raw material stirring device for the agricultural feed comprises a base and a stirring box, a motor is fixedly mounted onthe outer wall of the left side of the stirring box, the output end of the motor is fixedly connected with a rotating shaft, the rotating shaft penetrates through the left wall of the stirring box and extends into the stirring box, the end, located in the stirring box, of the rotating shaft is fixedly connected with a connecting shaft, the right end of the connecting shaft is movably sleeved witha stirring shaft, and a stirring rod is fixedly installed on the stirring shaft. The right end of the stirring shaft is rotationally connected with a second transmission rod through a bearing, and the second transmission rod penetrates through the right wall of the stirring box and extends out of the stirring box. And the right end of the second transmission rod is movably connected with a thirdtransmission rod through a second connecting mechanism.

The invention discloses an anti-locking automobile brake. The anti-locking automobile brake comprises a brake bottom plate, a brake drum, a first brake shoe, a second brake shoe and a driving device,wherein the first brake shoe and the second brake shoe are located on the inner side of the brake drum and arranged symmetrically; and the driving device is used for driving the first brake shoe and the second brake shoe to move relatively. A mechanical structure is adopted, wheels can be prevented from being locked and sliding during automobile braking, and the travelling safety is guaranteed.

A preparation method of a dynamic random access memory comprises the following steps: providing a conductive layer and a plurality of contact plugs formed in the conductive layer at intervals, the conductive layer comprising a contact surface, each contact plug partially protruding out of the contact surface, and each contact plug comprising a top surface and a side surface protruding on the contact surface; forming a barrier layer on the conductive layer and the contact plug; forming a dielectric layer on one side, far away from the conductive layer, of the barrier layer; etching the dielectric layer and the barrier layer to form a plurality of grooves until the conductive layer is exposed, wherein each groove is located between two adjacent contact plugs; and forming an electrode layer on the hole wall of each groove so as to be connected with the conductive layer. The invention also provides the memory prepared by adopting the method. In this way, the stability of all the electrodelayers in the subsequent grooves and the enough contact connection area of the electrode layers and the conducting layer can be guaranteed.

The present invention discloses a discharge valve (62) assembly for a linear compressor, comprising: a discharge valve (62) installed at one end of the cylinder (59) to be opened and closed, a compression space (P) for compressing a sucked refrigerant by linear reciprocation of a piston (52) being formed in one end of the cylinder; a discharge cap (66) fixedly installed at one end of the cylinder, for forming a discharge space (D) to which the refrigerant of the compression space is discharged; a discharge valve spring (69) installed between the discharge valve (62) and the discharge cap (66), for opening and closing the discharge valve (62) according to a refrigerant pressure; and a ring-shaped discharge valve supporter (68) installed in the discharge cap (66), having at least one main protrusion directly contacting the inner circumference of the discharge cap (66) and at least one auxiliary protrusion disposed with an interval from the inner circumference of the discharge cap being formed on the outer circumference of the discharge valve supporter (68).