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2067results about How to "Guaranteed firmness" patented technology

Loudspeaker module and manufacturing method thereof

The invention relates to the electroacoustic technical field, and provides a loudspeaker module and a manufacturing method thereof. The loudspeaker module comprises a case and a single loudspeaker body combined inside the case. The single loudspeaker body comprises a vibrating diaphragm assembly and a magnetic circuit assembly. A front sound cavity and a rear sound cavity are formed between the single loudspeaker body and the case. The case is provided with an elastic part, the elastic part is combined with the end surface of the opening end of the front sound cavity or the rear sound cavity, and the elastic part and the case are of an integrated structure formed in an injection molding mode. By adopting the structure in the loudspeaker module, the process of attaching the elastic part manually is eliminated, the accuracy and the stability of combination of the elastic part are guaranteed, the elastic part does not fall easily, the sealing property between a sound outlet hole of the loudspeaker module and a sound hole of a mobile phone after the loudspeaker module and a terminal electronic product are assembled can be effectively guaranteed, and the acoustic performance is improved. The manufacturing method for the loudspeaker module can solve the technical problems effectively and can be popularized to production for other structures with soft materials or hard materials needing to be injected into other materials.
Owner:GOERTEK INC

Rear side outer plate welding assembly

The invention discloses a rear side outer plate welding assembly which comprises a rear side inner plate assembly, a rear wheel cover inner plate welding piece, a rear wheel cover outer plate welding piece and a rear wheel cover outer plate support plate. The rear wheel cover inner plate welding piece comprises a rear wheel cover inner plate and a front protection plate. The rear wheel cover outer plate welding piece comprises a rear wheel cover outer plate. The rear side inner plate assembly comprises a rear side outer plate, an upper side beam inner plate, a rear side inner plate, a C column reinforcing plate and a D column upper end connector. The upper side beam inner plate is welded with the rear side outer plate, the upper side beam inner plate, the C column reinforcing plate and the rear side outer plate are welded, the rear side inner plate, the C column reinforcing plate and the rear side outer plate are welded, the upper side beam inner plate, the rear side inner plate, the C column reinforcing plate and the rear side outer plate are welded, and the upper side beam inner plate, the rear side inner plate and the C column reinforcing plate are fixedly connected. Components of the rear side outer plate welding assembly are welded independently or connected to be assembled, assembly is convenient, a welding process is better, and the middle door frame rigidity can be effectively improved.
Owner:SAIC-GM-WULING AUTOMOBILE CO LTD

Radiation cooling coating with self-cleaning function and preparation method thereof

The invention belongs to the technical field of radiation cooling, and particularly relates to a radiation cooling coating with a self-cleaning function and a preparation method thereof. The radiationcooling coating comprises a bottom layer binder, and a radiator and hydrophobic nano particles, which are covered on the bottom layer binder; and an infrared emission peak of the radiator is positioned within an infrared radiation waveband range of 8 to 13 mum and at least covers one wave band interval in the range of 8 to 13 mum. According to the invention, by utilizing high hydrophobicity of the nano hydrophobic particles, the radiation cooling coating has a self-cleaning effect and a phenomenon of reducing the cooling effect due to dust accumulation is avoided. The radiation cooling coating disclosed by the invention has high emissivity on the wave band of 8 to 13 mum, is large in transmittance on a visible light wave band, is excellent in lighting performance, can also reduce absorption on energy on the rest of wave bands and ensures the cooling effect. The radiation cooling coating further adopts two different particle sizes of radiators, so that the radiation range is widened, ground heat is radiated to the outer space to the greatest degree, and the cooling effect is improved.
Owner:HARBIN INST OF TECH AT WEIHAI

Well sealing waterproof construction method for dewatering well

The invention discloses a well sealing waterproof construction method for a dewatering well. The method comprises the following steps of: (1) constructing a foundation bed on the surrounding of the dewatering well; (2) embedding a steel sleeve for sealing the dewatering well in a foundation pit; (3) laying a waterproof roll material on the foundation bed, and then pouring a fine aggregate concrete protective layer on the waterproof roll material; (4) clamping a waterproof plate on the outer wall of the waterproof roll material on the outer wall of the steel sleeve in an abutted way; (5) clamping the waterproof plate by using a copper strip; (6) injecting a sealing adhesive to the waterproof plate; (7) pouring bottom plate concrete to the fine aggregate concrete protective layer; (8) pumping water; (9) embedding a sealing plate in the steel sleeve; (10) after filling gravels into a filling pipe, injecting a cement paste into a cement paste injection pipe, and stopping the injection of the cement paste until the paste in an overflow pipe flows out; and (11) pouring concrete into the steel sleeve above the sealing plate. Through the adoption of the well sealing waterproof construction method disclosed by the invention, a waterproof treatment problem at the connection of the dewatering well in the foundation pit and the foundation bottom plate in the whole dewatering well sealing waterproof system is solved.
Owner:天津住宅集团建设工程总承包有限公司

Hybrid microwave integrated circuit

The invention relates to a hybrid microwave integrated circuit. Aiming at the defects that the hybrid microwave integrated circuit of a large-size high-frequency power device has infirm welding and poor heat conducting performance and is easy to produce oscillation in the prior art, the invention discloses the hybrid microwave integrated circuit suitable for manufacturing the large-size high-frequency power device. In order to solve the technical problems, the invention adopts the technical scheme that the hybrid microwave integrated circuit comprises a substrate encapsulated in a tube shell, and at least two power devices manufactured on the substrate; the power device consists of field effect transistors; a matching circuit and an extraction electrode are manufactured on the substrate; the power device is connected with the extraction electrode through the matching circuit; the extraction electrode is connected with a pin; and gate electrodes of chips of the field effect transistors are welded in parallel through metal wires, drain electrodes of the chips of the field effect transistors are welded in parallel through metal wires, and the gate electrodes and the drain electrodes connected in parallel are welded on the matching circuit through the metal wires respectively.
Owner:SICHUAN LONGRUI MICROELECTRONICS

Three-in-one coupling insertion-pull type water surface photovoltaic power generation unit and power generation system thereof

ActiveCN107317544ASolve the problem of non-standard water installationSolve the problem of irregular installationPhotovoltaic supportsWaterborne vesselsMulti functionalityPhotovoltaic power generation
Disclosed are a three-in-one coupling insertion-pull type water surface photovoltaic power generation unit and a power generation system thereof. The photovoltaic power generation unit comprises a passage floating body and a connecting floating body arranged on a side wall of the passage floating body, wherein a power generation element is arranged on the connecting floating body. The system is formed by assembling three-in-one coupling insertion-pull type water surface photovoltaic power generation units vertically and horizontally. Horizontally, the passage floating body is assembled with a passage floating body of another three-in-one coupling insertion-pull type water surface photovoltaic power generation unit, and so on, mounting is completed. Vertically, the connecting floating body is assembled with the passage floating body of another three-in-one coupling insertion-pull type water surface photovoltaic power generation unit, and so on, mounting is completed. Finally, connecting floating bodies of a horizontal row of three-in-one coupling insertion-pull type water surface photovoltaic power generation units are independently fixed with passage floating bodies, so as to complete mounting of the whole power generation system. The unit has the characteristics of simple structure, convenient mounting and multi-functionality. The system assembly has the characteristics of simple structure and convenient mounting.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES

Axial ventilating type high-efficiency stirrer

The invention discloses an axial ventilating type high-efficiency stirrer. The lower end of a machine base shaft is connected with a stirring rod through a conical centering and coupling device. An upper stirring impeller and a lower stirring impeller are arranged on the stirring rod. Stirring blades of the upper stirring impeller and stirring blades of the lower stirring impellers are symmetrically installed in the vertical direction. Each stirring blade comprises a base plate and a turning plate, wherein the base plate and the turning plate are connected to form an included angle of 100 degrees to 170 degrees, and a tilt angle of 10 degrees to 70 degrees is formed between the base plate and the horizontal plane. An air nozzle is fixed to the bottom end of the stirring rod which is a hollow pipe. An air guide pipe is arranged in the stirring rod. The upper end of the air guide pipe penetrates through a machine base cushion plate and is communicated with an air inlet connector. The lower end of the air guide pipe is communicated with the air nozzle. Air outlets are evenly formed in the air nozzle. A tilt angle of alpha degrees is formed between the air outlets in the circumference of the air nozzle and the diameter line, wherein alpha ranges from 5 degrees to 45 degrees. The traditional mode that air is only pressed in from the wall circumference of a container through a pipeline is changed, the defect of air shortage in the middle area of the container is overcome, the chemical combination effect is made better, and the quality and efficiency of wet metallurgy are greatly improved.
Owner:湖南中资混合搅拌机电科技有限公司

Sucking-type underwater manipulator and sucking method thereof

The invention relates to a sucking-type underwater manipulator and a sucking method thereof. A main oil pump of a robot hull provides hydraulic oil for hydraulic cylinders and hydraulic motors of the manipulator through multilevel flexible hydraulic oil pipes. A manipulator base is connected with the hull through a universal ball at the top and is connected with three hydraulic cylinders which control the manipulator base. A single-level hydraulic cylinder is fixed on the lower portion of the manipulator base. A telescopic shaft of the single-level hydraulic cylinder is connected with the base through a sleeve shaft. A hydraulic motor is mounted on the sleeve shaft and is used for driving the manipulator base to rotate. Eight manipulator wrists controlled by the hydraulic cylinders are mounted on the base. A certain quantity of sucking disc rod groups are mounted on the bottom surface of each manipulator wrist. The object grabbing and adsorbing method of the sucking-type underwater manipulator is similar to that of an octopus living under the sea, sucking discs are squeezed and liquid in cavities of the sucking discs is drained under the acting force of the manipulator wrists to objects, and the sucking discs are enabled to be adsorbed to the surfaces of the objects. Under the joint action of grabbing force of the manipulator wrists and adsorbing force of the sucking discs, the manipulator has a better object grabbing capability.
Owner:JILIN UNIV

Chest piece of western-style clothes, manufacturing method thereof and manufacturing method of western-style clothes

The invention discloses a chest piece of western-style clothes, a manufacturing method thereof and a manufacturing method of western-style clothes. The chest piece of the western-style clothes comprises the following matters from the front cut piece fabric of the western-style clothes to the human body direction: a main lining arranged on the first layer, a shoulder squaring lining on the second layer, a main lining on the third layer, a horse tail on the fourth layer and cotton on the fifth layer. The chest piece of the western-style clothes is provided with multiple channels of openings which are in parallel mutually on the shoulder squaring lining on the second layer; the multiple channels of openings are parallel to the weft yarn direction of the shoulder squaring lining on the secondlayer; the main lining on the third layer is provided with multiple channels of openings which are in parallel mutually; the multiple channels of openings are parallel to the weft yarn direction of the main lining on the third; and a certain distance is pulled out between the openings on the shoulder squaring lining on the second layer and the openings on the main lining on the third layer. The invention can ensure that the position of the western-style clothes on the shoulder is good-fitting with human body; and the western-style clothes are comfortable to wear with no feelings of pressing the shoulder.
Owner:报喜鸟控股股份有限公司

Laminated poultry raising equipment

ActiveCN104381149APrevent hopper misalignmentAvoid timeBird housingsReciprocating motionEngineering
The invention relates to the technical field of poultry raising equipment, in particular to laminated poultry raising equipment. The laminated poultry raising equipment provided by the invention comprises a machine frame adopting a framework structure, wherein a plurality of poultry cages adopting reticular structures are arranged in the middle part of the machine frame in a laminated way, a food tough support frame fixedly connected with the two sides of the machine frame is arranged in an outer lower position of the cage wall of each layer of poultry cage, a U-shaped food tough with an upward opening is fixedly arranged on the food tough support frame, walking guide rails in symmetrical arrangement are arranged on the top of the machine frame, a feeding machine doing reciprocating movement in the horizontal direction is arranged on the walking guide rails, an opening of each discharging hopper arranged at feeding machine is in corresponding arrangement to the opening of the U-shaped food tough, the feeding machine is provided with a material homogenizing device, an egg collecting device is fixedly arranged at the outer side of one end of the machine frame, water level pressure regulating devices with the same number as the layer number of the poultry cages are arranged at the inner side of one end of the machine frame, and the other end of the machine frame is provided with an excrement cleaning machine.
Owner:HENAN JINFENG POULTRY EQUIP

Display assembly and assembling method thereof, and display device

The invention discloses a display assembly and an assembling method thereof, and a display device, relates to the technical field of display, and aims to solve the problem that a flexible display panel is easy to peel off from other film layers after being bent. The display assembly comprises a flexible display panel, a circuit board, a diaphragm assembly, a cover plate, a first supporting layer and a second supporting layer, wherein the flexible display panel comprises a panel body and a bent part, the first end, in the extending direction of the bent part, of the bent part is connected withthe edge of one side of the panel body, the circuit board is arranged on the back side of the panel body and is connected with the second end of the bent part, the diaphragm assembly is arranged on the display side of the panel body in a stacked mode, the cover plate is arranged on the side, away from the panel body, of the diaphragm assembly in a stacked mode, the first supporting layer is arranged on the back side of the panel body in a stacked mode and located between the panel body and the bent part, and the second supporting layer is arranged at the first end of the bent part and locatedbetween the cover plate and the bent part. The display assembly can be used in display devices such as mobile phones and the like.
Owner:BOE TECH GRP CO LTD

New structure fixing fixture for metal irregular workpiece machining

The invention provides a new structure fixing fixture for metal irregular workpiece machining. The new structure fixing fixture comprises adjusting sliding grooves, clamping devices, a rotary disc, aheight adjusting groove, a first double-screw bolt, an adjusting nut, a second double-screw bolt and a clamping block; and the two adjusting sliding grooves are formed in the two sides of the workingtable, the clamping devices are installed on the adjusting sliding grooves, adjusting screw rods are inserted into ring grooves and penetrate the adjusting sliding grooves, pressing blocks are fixedlyinstalled at the bottoms of the adjusting screw rods, a jacket is fixedly welded to the tail end of the second double-screw bolt, and the clamping block is fixed to the jacket through a rotating shaft. According to the new structure fixing fixture, irregular workpieces are clamped through the four clamping devices, the fixing angle of the clamping block to the irregular workpieces can be changedthrough the rotary disc and the sliding grooves, and the height of the clamping block can be changed through the height adjusting groove; and through adjustment of the first double-screw bolt, the second double-screw bolt and the adjusting nut, the clamping force to the irregular workpieces can be improved, the clamping firmness is guaranteed, and the using stability is improved.
Owner:GUIZHOU UNIV

Construction method of laid tiles of sloping roof

The invention discloses a construction method of laid tiles of a sloping roof, and relates to the technical field of architectural engineering, in particular to a construction technology for hanging tiles of the sloping roof. The construction method comprises the following steps of: pre-burying a vertical steel bars, one ends of which stretch out of a foundation concrete layer, in the foundation concrete layer of a roof; constructing a mortar waterproof layer on the foundation concrete layer; sticking thermal insulation boards on the waterproof mortar waterproof layer, and inserting the corresponding steel bar into each thermal insulation board; binding a reinforcing mesh on the roof outside the thermal insulation boards, and fixing the reinforcing mesh through the steel bars pre-buried in the foundation concrete layer; drilling holes on each laid tile, inserting a copper wire into the hole of each laid tile, straightening the copper wire, tightly and firmly binding the copper wire and the reinforcing mesh, and tamping the laid tiles and the thermal insulation boards through fine aggregate concrete. According to the invention, construction of the laid tiles is realized on the thermal insulation layer, due to the action of the vertical reinforcement and the reinforcing mesh, the thermal insulation boards and the laid tiles are firmly located to withstand the test of monsoon climate in spring and autumn, so that the laid tiles of the roof have longer service life.
Owner:华新建工集团有限公司

Modularization solar selective coat continuous coating device

The invention belongs to the field of the heat collection plate coating in the solar equipment, and relates to a continuous solar selective absorption film coating production device which adopts the modularization design, can be flexibly assembled and adjusted and is applicable to different coating processes. The modularization solar selective coat continuous coating device comprises a pretreatment chamber and at least one process chamber, wherein both the pretreatment chamber and the process chamber are provided with a vacuum pump, two ends of the pretreatment chamber and the process chamber are respectively provided with a feeding port and a discharging port, both the feeding port and the discharging port on two ends of the pretreatment chamber and the process chamber are provided with a connection device with the same size and shape or being matched with each other, and the pretreatment chamber and the process chamber are sequentially connected through the connection devices to form an integral continuous coating device. The invention can provide a novel coating production device which adopts the modularization design and realizes different production and processing technologies by reducing different process chambers or by adjusting the position of the process chambers in the production line.
Owner:SHENZHEN PROSUNPRO SOLAR ENERGY

Method for assembling non-metallic flexible net at sound holes of acoustic device

The invention discloses a method for assembling a non-metallic flexible net at sound holes of an acoustic device. The method comprises the following steps of (1) manufacturing a base plate, and forming a plurality of hollow holes in the base plate; (2) manufacturing a non-metal flexible net belt, adhering the flexible net belt to the base plate, and covering all hollow holes; (3) putting the base plate adhered with the flexible net belt into a first injection mold, and carrying out injection molding on the flexible net belt corresponding to each hollow hole to form annular first injection molding bodies which are combined together with the flexible net belt; (4) cutting the flexible net belt around the first injection molding bodies, so as to obtain an independent first injection molding piece; and (5) putting the first injection molding piece into a second injection mold, carrying out secondary injection molding to form an acoustic device casing which is combined together with the first injection molding piece, and using inner holes of the first injection molding bodies as the sound holes of the acoustic device. The method has the advantages that the assembly of the non-metal flexible net belt is convenient for operation, and the assembly efficiency and the assembly quality are improved.
Owner:GOERTEK INC
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