39results about How to "Uniform contact force" patented technology

The invention discloses a method for transferring and preparing a two-dimensional atomic crystal laminated structure and relates to a stripping, positioning and transferring method for substrate-based two-dimensional atomic crystal film. The method comprises the specific steps of carrying out spin-coating on the surface of the two-dimensional atomic crystal film through utilization of polystyrene film, wherein the two-dimensional atomic crystal film is prepared based on a substrate; separating two-dimensional atomic crystals from the substrate through utilization of water tension and transferring the two-dimensional atomic crystals to dimethyl siloxane polymer; attaching the two-dimensional atomic crystals/polystyrene/dimethyl siloxane polymer on a target material through utilization of the van-der waals force; and separating the dimethyl siloxane polymer in a heating mode and removing the polystyrene through utilization of toluene solution or a vacuum annealing method, namely preparing the two-dimensional atomic crystal laminated structure. The method is simple in operation and is high in success rate, is fast and can be widely applied to the field of a large-area ultra-thin material photoelectric sensor.

A twist pin is used as an interconnect interface to conduct signals to and from an electronic component. The twist pin includes a bulge which establishes compressive contact force with a sidewall of a via in which the twist pin resides, and the resulting force resists movement of the end of the twist pin away from the electronic component to assure good signal conductivity. The arrangement may be used as a test socket for testing integrated circuit components or permanently docking electronic components.

The invention discloses a stabilizer and a manufacturing method thereof. The manufacturing method comprises the following steps that: hard alloy blocks are first welded on an edge band matrix by adopting a spot welding way; afterwards, spray welding is carried out on the edge band matrix around the hard alloy blocks by adopting a flame spray welding gun; burnt-out alloy powder sprayed out from the welding gun and the edge band matrix are melted integrally to form alloy powder melted layers around the hard alloy blocks; the hard alloy blocks are fixedly arranged on the edge bank matrix firmly; and after a spray-welded layer covers all the hard alloy blocks, the stabilizer is fed onto a cylindrical grinding machine to be subjected to cylindrical grinding, so that each hard alloy block is ground to be exposed and reach the diameter dimension of the outer circle of the needed stabilizer, thereby obtaining the stabilizer. The stabilizer not only has the advantages of being simple in structure and being easy to manufacture, but also has the advantages of high dimensional precision, high abrasive resistance, long service life and the like.

A rotor for an electric switch is disclosed. In an embodiment, the rotor includes a rotor housing and a rotatably mounted contact bridge, which exhibits two movable contacts, wherein, by the rotation of the rotor, the two movable contacts can interact with two fixed contacts of an electric switch for closing or opening a circuit. The rotatably mounted contact bridge in the rotor housing is movably mounted in a direction perpendicular to the direction of the contact bridge in its closed position.

The invention relates to a coating film supporting mechanism of a high temperature deposition hard mask of a film coating workpiece, belonging to auxiliary equipment of optical coating. The coating film supporting mechanism comprises a film coating tray, a stop dog groove, a workpiece stop dog, a locking screw, a steel ball and a steel ball caulking groove. The middle part of the film coating tray is provided with an opening for placing the film coating workpiece, the four sides of the tray are provided with radial stop dog grooves for installing the workpiece stop dog, the workpiece stop dog moves in the groove, the inclined plane of the workpiece stop dog is embedded with a steel ball (rolling ball), the steel ball rolls in the caulking groove, the workpiece stop dog is fixed in the stop dog groove by the locking screw, the edges of the film coating workpiece are all provided with tapers, the film coating workpiece is placed on the inclined plane of the workpiece stop dog and contacts with the steel evenly, and then the film coating workpiece and the entire device are both placed into a circular ring tray of the film coating machine. The mechanism of the invention can ensure that uniform force is exerted on each steel ball and the workpiece, the position of the stop dog can be freely adjusted in a certain scope according to the dimension of the workpiece; in addition, the chucking power for adjusting the workpiece can be provided by expansion or shrinkage force generated from high temperature or low temperature to drive the steel ball to roll; and the mechanism of the invention features in simple structure and high cost performance.

The invention relates to the technical field of unmanned aerial vehicles, and provides an unmanned aerial vehicle based on X-wing layout. The unmanned aerial vehicle comprises a vehicle body, a plurality of main wings and a plurality of tail rings, wherein the cross section of the vehicle body is in a circle shape, the plurality of main wings are symmetrically arranged along the longitudinal axisof the vehicle body, and the installation plane of the main wings is tangential to the vehicle body; the plurality of tail wings are symmetrically arranged along the longitudinal axis of the vehicle body, and the installation plane of the tail wings is tangential to the vehicle body; the installation direction of the tail wings is opposite to the installation direction of the main wings; each mainwing is connected with a foldable mechanism in the vehicle body through an adapter, and can rotate around the adapter which is used as the rotation center; all the main wings and the tail wings are foldable. The unmanned aerial vehicle has the advantages that by adopting the novel aerodynamics layout, compared with the traditional unmanned aerial vehicle, the maneuverability is stronger, and thebattlefield survival ability is strong; the unmanned aerial vehicle can be folded, so that the occupation space after folding is smaller than the occupation space of other conventional unmanned aerialvehicles, the disassembly of parts for box loading is not needed in the transportation process, and the disassembly and assembly time is shortened; the structure is simple, novel and reasonable, andthe application prospect is broad.

The invention discloses a friction welding machine and a radial friction welding closed fixture. The radial friction welding closed fixture comprises a spring chuck, a conical sleeve, a fixture body and a clamping sleeve; the fixture body coats the outer side of the spring chuck; the conical sleeve is slidingly arranged between the spring chuck and the fixture body; when the conical sleeve slides, the inner conical surface thereon is matched with the outer conical surface of the spring chuck to realize clamping or releasing of the spring chuck; the clamping sleeve is annular, and is clamped in the spring chuck; when the spring chuck is clamped, the clamping sleeve is elastically deformed to clamp a workpiece; when the workpiece is clamped, the spring chuck is clamped to apply pressure to the clamping sleeve, and the clamping sleeve is pressed to deform to clamp the workpiece; and as the clamping sleeve is clamped and matched with the spring chuck when the spring chuck is clamped, the contact stress of all components of the spring chuck with the clamping sleeve is uniform, the clamping sleeve can preferably protect the spring chuck from being collided by the workpiece, the service life of the spring chuck is prolonged, the workload of maintainers is reduced, and the production cost is reduced.

The invention discloses a pattern of a snow tire. The pattern comprises a tire crown pattern zone, a first tire shoulder pattern zone, a second tire shoulder pattern zone, a first tire sidewall pattern zone and a second tire sidewall pattern zone, wherein the tire crown pattern zone comprises first straight furrows, second straight furrows, first transverse furrows and second transverse furrows; each first straight furrow comprises a plurality of first straight furrow sections which are discrete; each second straight furrow comprises a plurality of second straight furrow sections which are discrete; circumferential and continuous tire crown pattern blocks are formed between the first straight furrows and the second furrows; the furrow walls of the first straight furrows and the second straight furrows are both set in sawtooth shapes; the first transverse furrows are located on the furrow walls of the outer sides of the first straight furrows and are set in sawtooth shapes; the second transverse furrows are located on the furrow walls of the outer sides of the second straight furrows and are set in the sawtooth shapes; snow nail installing holes are formed in the tire crown patternblocks, the first tire shoulder pattern zone and the second tire shoulder pattern zone. The pattern disclosed by the invention is capable of increasing the stability of straight movement and the sensitivity of steering, and the brake performance in snow is increased.

The invention relates to the technical field of coated plastic production, in particular to a preparation method of coated protective plastic capable of being bonded with metal, which comprises the following steps: S1, feeding raw materials; raw materials for manufacturing wrapping plastic are subjected to kneading and cold mixing treatment, kneading of the raw materials is completed through a kneading machine, side-by-side tangent differential arrangement is adopted, namely, the speed of one stirring paddle is high, the speed of the other stirring paddle is low, so that shearing force is generated, the mixed materials can be rapidly sheared due to different paddle speeds, and therefore the materials can be evenly mixed; cold mixing of raw materials is completed through the cold mixing machine, the cold mixing machine is provided with a cooling pipe, a cooling system is used for injecting a cooling agent into the cooling pipe through a water inlet, then the raw materials in a machine body are cooled, an automatic cutting machine is used for cutting a plastic film covered with release paper into a preset shape, and leftover materials are recycled; and the cut wrapping plastic finished products are collected and wrapped in a centralized mode, the metal parts can be directly wrapped after the release paper is torn off, and use is convenient.

The invention discloses a soft-body robot capable of autonomously balancing contact force, comprising a force sensor 1, a soft finger cavity 2, a force sensor 3, a soft finger cavity 4, a fixing ring5, a fixing ring 6, a soft finger cavity 7, a force sensor 8, a soft air tube 9, a soft air tube 10, a soft air tube 11, a wire 12, a control system 13, a force sensor 14, a force sensor 15, a soft finger cavity 16, a fixing ring 17, a fixing ring 18, a soft finger cavity 19, a fixing ring 20, a force sensor 21, a soft palm cavity 22, a soft air tube 23, a soft air tube 24, a soft air tube 25, anair pump 26, a wire 27, a soft robot finger 28, a soft robot finger 29, a soft robot finger 30, a hand module 31, a soft robot finger 32, and a soft robot finger 33. The soft-body robot herein can automatically balance and adjust contact force for an operation object.

The invention discloses a high-temperature wear-resistant stop valve. The high-temperature wear-resistant stop valve comprises a valve body, a valve cover and a gate plate. An inlet and outlet flow channel is formed in the valve body, the valve cover is buckled to the upper portion of the valve body to form an upper valve cavity communicating with the inlet and outlet flow channel, and a lower valve cavity communicating with the inlet and outlet flow channel is formed in the lower portion of the valve body. Valve seats are arranged in the upper valve cavity and the lower valve cavity, and through holes matched with the inlet and outlet flow channel are formed in the middles of the valve seats. Each valve seat comprises two fixed baffles and two floating sealing plates, and the gate plate and the floating sealing plates are matched to form sealing pairs and seal connecting channels of the inlet and outlet flow channel and the upper valve cavity and the lower valve cavity. According to the high-temperature wear-resistant stop valve, the length of the valve seats is increased, when the gate plate is fully opened and fully closed and is in place, the lengthened valve seats can seal and prevent media from entering the upper valve cavity and the lower valve cavity of the valve, a good sealing effect is achieved, the sealing performance of the valve is improved, the anti-coking, high-temperature-resistant and wear-resistant performance is achieved, and the service life of the valve is prolonged.

The invention provides a pressure-adjustable fetus-voice meter and a fetus-voice positioning method; the pressure-adjustable fetus-voice meter comprises a detection part and a liquid crystal display;the pressure-adjustable fetus-voice meter also comprises an arc-shaped slide rail, and the detection part comprises a moving seat; a first through cavity is formed in the moving seat, and a sliding sleeve is slidably connected into the first through cavity; the bottom of the sliding sleeve is connected with a probe body, and the top of the sliding sleeve is connected with an upper cover; a secondthrough cavity is formed in one side of the movable seat, an ejector block is slidably arranged in the second through cavity, and oblique teeth inclining downwards are arranged at one end of the ejector block; clamping grooves matched with the oblique teeth are formed in the sliding sleeve; a spring II sleeves the top block, one end of the spring II is connected with the top block, and the other end is connected with the inner wall of the second through cavity; the probe body is provided with a pressure sensor, and six ultrasonic probes are evenly arranged on the outer side of the pressure sensor; a microprocessor for implementing control is also provided. The invention is simple in structure and reasonable in design, the fetal heart can be accurately positioned, meanwhile, the pressure can be conveniently adjusted, and inaccurate detection numerical values caused by excessive force or too small force are prevented.

The invention discloses a cast-in-place mold for pouring a building bridge upright post, which comprises two templates capable of being spliced and assembled, the templates adopt common carbon structural steel plates, and the wall thickness is 8mm-22mm; before pouring, an oil film needs to be brushed in the formwork or covered with a plastic film, and later demolding is facilitated; the two formworks are combined to form a formwork cavity for pouring concrete, arc-shaped reinforcing plates are welded to the outer walls of the formworks, the two ends of each reinforcing plate are bent to form lug plates, bolts are assembled between the two lug plates, and the two formworks are assembled after the bolts are tightened; a plurality of reinforcing plates are arranged in parallel up and down; the device can realize stable placement.

The invention discloses a post-operative nursing device for otology and laryngology, and belongs to the technical field of medical equipment. The nursing device includes a medicine storage tube body,wherein a chamber for accommodating liquid medicine is formed in the medicine storage tube body, the volume of the chamber is changed with the medicine storage tube body under the kneading action of an external force, and an opening of the upper end part of the medicine storage tube body, and is connected with an assembly unit; a medicine administration assembly is arranged on the end part of theassembly unit, a medicine guide tube is arranged in the medicine storage tube body, and the medicine guide tube penetrates the assembly unit, and is connected with the medicine administration assembly; and the medicine administration assembly includes an inflatable cylinder which is arranged around the outer wall of the medicine guide tube, medicine administration channels are formed by gap amongthe inflatable cylinder, and first through holes are formed in the parts, corresponding to the medicine administration channels, of the tube wall of the medicine guide tube. Uniform application of medicine and controllable force of medicine application are realized, the progress of medicine application can be controlled under the assistance of a patient, and secondary damage to the patient can beavoided in the application process; and medicine administration has no damage to tympanic membranes and ear canal walls, no plugging of ear canals is caused by medicine administration, and medicine leakage is avoided effectively.

The invention provides a screen printing device for the outer surface of a cylindrical curved surface and suitable for use in an assembly line, and relates to the technical field of printing. The screen printing device includes a conveyor belt and cylindrical printing stocks, the conveyor belt is connected with stepped cylindrical plug pins, the printing stocks are connected with the plug pins ina sleeving mode, the outer surfaces of the printing stocks are covered with printing plate components, pressing blocks are inserted in the plug pins, the pressing blocks are rotatably connected with squeegee driving mechanisms, balance mechanisms and guide mechanisms are connected to the plug pins and the pressing blocks in a clamping mode, and the balance mechanisms are matched with the guide mechanisms. The screen printing device solves the technical problems of low production efficiency due to the fact that screen printing cannot be carried out on assembly lines in the prior art. The screenprinting device has the beneficial effects that the screen printing is carried out on the assembly line of the conveyor belt, multiple times of carrying and assembly and disassembly are not required,and product damage links are reduced; manual intervention is not required, the screen printing device is convenient to use, the labor intensity is reduced, and the production efficiency is improved.The screen printing device is simple and reasonable, is low in manufacturing cost and convenient to operate, and is suitable for mass production in the assembly line.

The invention relates to a simple liquid storage type scraper device and a conveying device. The simple liquid storage type scraper device comprises a scraper frame, a scraper assembly, a liquid storage device and an anti-disengagement protection assembly, wherein the scraper frame is fixed to the lower side of a conveying frame; the upper end of the scraper assembly is in abut joint with a conveying belt; and the lower end of the scraper assembly is rotationally connected with the scraper frame; liquid used for providing the gravity effect is stored in the liquid storage device; the liquid storage device adjusts the acting force of the upper end of the scraper assembly abutting against the conveying belt by changing the weight of the liquid; the anti-disengagement protection assembly is fixed onto the scraper frame; and when the scraper assembly is separated from the conveying belt, the anti-disengagement protection assembly transmits the scraper assembly to reset. The conveying device comprises a conveying frame, a conveying belt, a driving roller and the simple liquid storage type scraper device, wherein the driving roller is connected onto the conveying frame and supports the conveying belt. Through the liquid storage device, the material scraping pressure in contact with the conveying belt can be adjusted according to practical material scraping requirements, and the problem that the pressure is not adjustable in the material scraping process is solved.