44results about How to "Easy structure processing" patented technology

The invention discloses a structure of an electronic product casing and a processing technology thereof. The structure and processing technology of the electronic product casing fully combine a composite composite material with the advantages of high strength, thin thickness, light weight, corrosion resistance, good radiation resistance and the like. The material panel and the plastic parts with the characteristics of light texture and easy structural processing are realized by injection molding on the surface of the composite material panel through the intermediate film medium layer, and the purpose of fixing the composite material panel and the plastic part is achieved. The electronic product casing with the composite material panel as the outer surface of the casing and the plastic part as the structural member makes the electronic product casing not only retain the good radiation protection effect of the composite material panel, high strength, thin thickness, light weight, corrosion resistance, resistance It has the advantages of high temperature and beautiful appearance, and also forms plastic parts with complex structure through the film dielectric layer and injection molding process, which overcomes the defect that the composite material panel cannot form complex structural parts.

The invention discloses a thermal expansion valve with a unidirectional control function. The thermal expansion valve comprises a valve body having an inlet passage and an outlet passage, a temperature sensing part disposed at one end of the valve body, and a first spool part disposed in an inner cavity of the valve body. The first spool part comprises a valve stem and a first spool; the valve stem is abutted to the temperature sensing part; the first spool coordinates with a first valve port in the inner cavity to control the quantity of medium fluid flowing from the inlet passage to the outlet passage. The valve body further comprises an accommodating portion extending from the inlet passage to the inside of the valve body. The accommodating portion is provided with a second valve port and an internal second spool part. A limit bushing is arranged between the valve stem and the valve body in a sleeving manner. The limit bushing inwardly extends into the accommodating portion to limit the opening position of the second spool part. When the medium flows from the inlet passage to the outlet passage, the second valve port is closed; when the medium flows from the outlet passage to the inlet passage, the second valve port is open. Compared with the prior art, the thermal expansion valve has the advantages that operational reliability is effectively improved on the premise of improving manufacturability.

The invention relates to a large-air-volume volute fan. The fan comprises a volute, a wind wheel and a motor, an air duct is formed in the volute, a coaming of the volute is in an open ring shape, anair outlet is formed in an opening of the coaming, the wind wheel is arranged in the air duct and is in transmission connection with the motor, and a first lead-out plate and a second lead-out plate are arranged on the two sides of the air outlet correspondingly; the second lead-out plate is connected with the other end of the opening of the coaming through an arc transition surface, the horizontal distance between a tangent point between the arc transition surface and a vertical line and the first lead-out plate is 125-155mm, and an included angle between the second lead-out plate and a vertical line is 20-70 degrees; a first arc plate, a second arc plate and a third arc plate are sequentially arranged between the corresponding arc transition surface of the coaming and the first lead-outplate in a tangent transition mode; and blades of the wind wheel are formed by connecting inner arc pieces and outer arc pieces in a tangent transition mode. According to the fan, the structures and sizes of the air outlet, the air duct and the wind wheel are optimized, so that the whole air outlet is reasonably and gradually increased from inside to outside, the exhaust air rate and the exhaust air pressure are increased, and exhausted air can be conveyed to a farther position.

The invention discloses a structure of an electronic product enclosure panel and a manufacturing process thereof. In the invention, metal with characteristics of good radiation protection effect, high strength, high-temperature resistance and the like, and plastic cements with characteristics of light weight, convenience of structure machining and the like are fully combined to realize injection molding on the metal surface through an intermediate medium hot melt adhesive membrane, so that a purpose of fixing and combination of a metal panel and a plastic element is reached, and an electronic product enclosure panel using the metal panel as the enclosure external surface and using the plastic element as the structural element is manufactured, therefore, the electronic product enclosure panel has the advantages of good radiation protection effect, high strength, corrosion resistance, high-temperature resistance, attractiveness, light weight, convenience for machining and the like and can manufacture complex structural elements and the like.

The invention discloses a box structure with a vacuum insulating layer and a refrigerator. The box structure comprises a vacuum box and a vacuum box door connected to the front end of the vacuum box.The vacuum box comprises a box outer shell and a box inner shell. The inner surface of the box outer shell and the outer surface of the box inner shell are each provided with a first aluminum foil layer. The box inner shell is embedded into the box outer shell. The end of the box inner shell and the end of the box outer shell are fixedly connected and sealed to form a shell cavity between the boxinner shell and the box outer shell. The box inner shell or the box outer shell is connected with a first bleeding pipe assembly. The vacuum box door comprises a door body outer board and a door bodyinner board. The inner surface of the door body outer board and the outer surface of the door body inner board are each provided with a second aluminum foil layer. The refrigerator comprises a main box shell. The box structure with the vacuum insulating layer is connected to the interior of the main box shell. The box structure is provided with the vacuum box with the better heat insulating effectand the vacuum box door with the better heat insulating effect and is novel in structure and high in practicality.

The invention discloses a pressure-resistant liquid storage tank, which comprises a liquid storage tank body and a head arranged at both ends of the liquid storage tank. The head at one end of the liquid storage tank is provided with a liquid inlet hole, and the tank wall of the liquid storage tank body is Both the direction and the circumference satisfy the sine wave curve equation. The invention also discloses the manufacturing method of the pressure-resistant liquid storage tank, which mainly adopts the forming method of water injection and pressurized bulging. excellent.

The invention discloses a rear test bed structure of a motorcycle shifting fork checking fixture. The structure is characterized in that a whole rear test bed is cylindrical and is fixed to a bottom plate, the upper end face of the rear test bed is provided with a shifting fork stress shaft test vertical groove right towards the direction of a shifting fork assembly hole test shaft, the rear test bed under the shifting fork stress shaft test vertical groove is provided with a shifting fork stress shaft test annular groove along the circumferential direction, and the bottom of the shifting fork stress shaft test vertical groove at the upper end of the rear test bed is provided with a locating through hole arranged downward. The rear test bed structure can achieve test and locating of a shifting fork locating shaft twice, and the locating does not interfere with each other. The rear test bed structure can achieve test of a plurality of parameters of the shifting fork through match with a front test bed, and meanwhile has the advantages of being convenient to install and locate, convenient to process, capable of lowering processing loss and the like.

The invention relates to a method and a device for detecting the elasticity modulus of corn stalks, which belong to the technical field of modern agricultural equipment. The invention adopts a cantilever beam as a theoretical model, external force is horizontally applied to corn stalks with fixed roots, and the calculation formula of the elasticity modulus of the stalks is calculated according torelevant mechanical principles; according to the measurement principle, a relevant measurement device is designed; and during measurement, the external force with a horizontal action is applied to the corn stalks by a push rod, the corn stalks are bent, the applied external force is transformed by a sensor, an automatic display instrument and the like to display the numerical value of the elasticity modulus of the corn stalks, and the numerical value of the stress intensity of the corn stalks obtained by measurement can be used as one parameter for a corn seed breeding expert to select and breed high-quality corn. The invention has simple operation, scientific measurement principle, reliable measurement result, simple structure and low production cost.

The invention discloses a multifunctional positioning part for a shear wall, which belongs to the technical field of building components, and includes a positioning rod, pad blocks are provided at both ends of the positioning rod, and hooks are provided on the positioning rod inside the two pad blocks. The beneficial effect is that the structure is simple, the effect of pulling and positioning the shear wall is remarkable, and the construction and installation are convenient, and the thickness of the protective layer of the shear wall and the overall thickness of the shear wall can be effectively controlled to meet the specification required by the construction. The structure is easy to process, can be produced in batches, prevents the corrosion phenomenon of the wall body, and ensures the beauty of the wall surface.

The invention discloses a structure of an electronic product enclosure panel and a manufacturing process thereof. In the invention, metal with characteristics of good radiation protection effect, high strength, high-temperature resistance and the like, and plastic cements with characteristics of light weight, convenience of structure machining and the like are fully combined to realize injection molding on the metal surface through an intermediate medium hot melt adhesive membrane, so that a purpose of fixing and combination of a metal panel and a plastic element is reached, and an electronic product enclosure panel using the metal panel as the enclosure external surface and using the plastic element as the structural element is manufactured, therefore, the electronic product enclosure panel has the advantages of good radiation protection effect, high strength, corrosion resistance, high-temperature resistance, attractiveness, light weight, convenience for machining and the like and can manufacture complex structural elements and the like.

The invention provides a pair of adjustable tongs. The pair of adjustable tongs comprises a first clamping arm and a second clamping arm which are symmetrically hinged. The first clamping arm and thesecond clamping arm each comprise a handle, a tongs shoulder, a tongs arm, an adjustable rotary buckle and a clamping head which are connected in sequence, wherein the adjustable rotary buckles are used for adjusting the clamping angle of the tongs, and the clamping heads are used for clamping raw materials. By adding the adjustable rotary buckles, the materials can be conveniently clamped at different angles; by adding detachable sawteeth to the clamping heads, the damage-free clamping of the raw materials is realized, and friction force is increased; and moreover, the pair of adjustable tongs is simple in structure, convenient to machine and low in maintenance cost.

The invention relates to a synchronous ring mechanism of a mode switch valve of a variable-cycle engine and belongs to the technical field of high-performance gas turbine engines in the aerospace technique. A mode switch valve mechanism is used for changing the work state of the engine to adapt various flight conditions. The mode switch valve is arranged at the outlet of an outer duct of the engine and comprises a front section of an outer case, a rear section of the outer case, a valve sheet, a seal ring, a connecting rod, a synchronous ring, a front gas seal case, a rear gas seal case, a synchronous ring guide rail, an actuating cylinder and a synchronous ring guide groove. The synchronous ring mechanism of the mode switch valve of the variable-cycle engine mainly aims at the synchronous ring which moves axially along the engine under the actuation of the actuating cylinder and the motion of the synchronous ring is matched with the front section of the outer case. The invention provides four different synchronous ring structure schemes which are all capable of realizing motion function.

The invention provides a hanging adjusting device for a blast furnace tapping machine and a using method. The hanging adjusting device for the blast furnace tapping machine comprises a U-shaped structure and nuts, wherein the U-shaped structure comprises a U-shaped frame and threaded parts, the U-shaped frame comprises a U-shaped frame bottom and two U-shaped frame side parts, and the U-shaped frame bottom is connected to the bottom ends of the two U-shaped frame side parts; the U-shaped frame is arranged outside a tapping machine body in a sleeving mode in the using process; The threaded parts are arranged at the top ends of the two U-shaped frame side parts; the threaded parts are arranged in circular holes of a tapping machine bottom plate in a penetrating manner during use; and the nuts are in threaded connection with the threaded parts, and the nuts limit the tapping machine bottom plate. According to the hanging adjusting device for the blast furnace tapping machine, only two nuts need to be dismounted and mounted, the dismounting and mounting time can be greatly shortened, the dismounting and mounting time of a tapping machine device can be shortened by 2 / 3, the tapping machine can be replaced and overhauled through online overhauling, and therefore the flexibility is better.

The invention discloses a recirculating double-wire screwing device, comprising a base mechanism and a rotating mechanism. The base mechanism includes a pressure-bearing bracket and a positioning inner cylinder. A first through hole is opened in the middle of the pressure-bearing bracket, and the positioning inner cylinder is fixed connected to the lower end surface of the pressure bearing bracket outside the first through hole; the rotating mechanism includes a rotating outer cylinder and a rotating handle, the rotating handle is connected to the lower end of the rotating outer cylinder, and the outer ends of the rotating outer cylinder on both sides of the rotating handle are respectively provided with There are a first wire hanging buckle slot and a second wire hanging buckle slot; a rotating auxiliary component is arranged at the connection end of the positioning inner cylinder and the pressure bearing bracket, and a toggle rod is connected to the inner end of the rotating outer cylinder; After the cylinder sleeve is positioned outside the inner cylinder, the rotating outer cylinder is connected with the rotating auxiliary assembly through a toggle rod. When the machine is used to screw the steel wire of the fixed formwork, the damage of the original components and the steel wire is reduced, the material is saved, and the safety is higher. Especially when looking up and working at a high place, the effect of screwing is better, and the workers work more efficiently. Effortless.