10results about How to "Will not change" patented technology

The utility model discloses a swing leaf structure of air conditioner cabinet, including swing leaf body still include the extension plate of swing leaf body one end end part, be provided with swing leaf drive subassembly on the fixed extension plate, swing leaf drive subassembly includes drive block, crank and bolt, drive block is fixed on the extension plate, and drive block is provided with the drive hole parallel to swing leaf body length direction and the pinhole perpendicular to drive hole, and drive hole is communicated with pinhole, one end of crank is provided with the radial extension lock hole, and the other end of crank is equipped with the axial extension motor connecting hole, and crank inserts drive hole, and lock hole is aligned with pinhole, and the plug -in cooperation is formed to bolt and lock hole and pinhole. The relative position of swing leaf and crank is effectively fixed, and swing leaf and crank connection stability, can not happen other relative motion, effectively strengthened the assembly intensity between swing leaf and crank, makes crank can steady drive swing leaf operation, and the clearance between swing leaf and face frame can not change, ensures the stability of air conditioner swing leaf operation.

This invention discloses a high-temperature resistant aluminum alloy wire suitable for arc-fused-wire additive manufacturing and its preparation method. The alloy wire comprises: manganese (Mn): 0.3-0.5%, copper (Cu): 5.3-5.8%, titanium (Ti): 0.15-0.35%, boron (B): 0.0005-0.006%, vanadium (V): 0.05-0.3%, zirconium (Zr): 0.05-0.2%, cadmium (Cd): 0-0.4%, silicon carbide (SiC): 0.1-0.4%, iron (Fe): ≤0.15%, silicon (Si): ≤0.06%, magnesium (Mg): ≤0.05%, zinc (Zn): ≤0.1%, other individual impurity elements: ≤0.05%, total other impurity elements: ≤0.15%, and the balance being aluminum (Al). The wire of this invention exhibits a uniform microstructure and moderate strength. The deposit formed by the arc-fused-wire additive manufacturing process possesses excellent strength, toughness, and other mechanical properties, with significantly improved heat resistance.

The invention discloses a PTO tapered roller bearing clearance adjusting method which comprises the following steps: assembling an adjusting screw sleeve and a bearing seat, mounting a tapered roller bearing, mounting a flywheel shell, assembling the bearing seat and the flywheel shell, loosening the adjusting screw sleeve and tightening the adjusting screw sleeve. The method has the beneficial effects that the outer ring of the tapered roller bearing and the adjusting screw sleeve are separately arranged on the bearing seat in advance, then the bearing seat is installed on the flywheel shell, the adjusting screw sleeve is loosened firstly, then the bearing seat bolt is fastened, and after the bearing seat is installed in place, the adjusting screw sleeve is tightened to ensure that the adjusting screw sleeve is tightly attached to the outer ring of the bearing; the bearing outer ring and the bearing roller are always in zero clearance fit, the adjusting screw sleeve is loosened before the adjusting screw sleeve is fixed by using the fastening screw, the influence of a thread clearance can be effectively eliminated, the adjusting screw sleeve cannot be rotated and loosened after the fastening screw is installed, the bearing clearance cannot be changed in the use process of a product, and the service life of the product is prolonged. And long-term use of the product can be ensured.

The utility model discloses a high-temperature-resistant and high-pressure-resistant sealing stop valve, and relates to the technical field of valves. The check valve comprises a valve body, a valve cover is arranged above the middle of the valve body, a valve rod is arranged in the valve cover, and the top end of the valve rod is connected with a hand wheel. A stop plate is arranged in the valve body, a valve clack assembly is arranged at the bottom of the valve rod and comprises a valve clack body rotationally connected with the valve rod, positioning rods are arranged at the four corners of the valve clack body, a sealing assembly is arranged at the upper end of the valve deck and comprises a sealing ring fixed in the upper side wall of the valve deck, and the upper side wall of the sealing ring is in threaded connection with a ring cover. A pressurizing ring is bonded to the inner wall of the sealing ring, and an inner cavity of the sealing ring communicates with the pressurizing ring. According to the utility model, the tightness of connection between the valve cover and the valve rod can be increased through the sealing assembly, the sealing performance between the valve cover and the valve rod is improved, and the valve clack assembly not only ensures that the valve clack body does not move when the valve rod rotates, but also ensures the stability when the valve clack body closes a medium channel.

The application relates to the technical field of house building construction, in particular to a plate hoisting device for house building construction, which comprises a supporting plate, a connecting assembly and a limiting assembly, a guide rod is arranged on the top surface of the supporting plate, a cover plate is slidably assembled on the guide rod, the top surface of the cover plate is provided with a first hook, the connecting assembly comprises a connecting unit, a connecting plate and a second hook arranged on the top surface of the connecting plate, the connecting unit is used for connecting the cover plate, the supporting plate and the connecting plate together, the limiting assembly comprises position-adjustable limiting units which are symmetrically arranged in the left-right and front-rear directions, the limiting units are used for connecting the supporting plate and the cover plate and stopping the plate in the left-right and front-rear directions. The plate hoisting device for house building construction is simple in structure, convenient to process and manufacture, simple to operate and convenient to install, the symmetrically arranged limiting units ensure that the plate is in the central position of the supporting plate, the hoisting device is prevented from deviating in the hoisting process, and the construction safety is ensured.

The embodiment of the present specification provides a method for determining the office area to which a device belongs, an access control method, a system, an apparatus and a device. The correspondence relationship between the device identifier of the network device and the office area range can be preconfigured. In the process of network authentication of the user device, the device identifier of the network device is sent to the server through the network device, so that the server determines the office area range to which the user device belongs based on the preconfigured correspondence relationship and the device identifier of the network device. Since the device identifier of the network device does not need to be manually configured by the user and will not change, misidentification can be reduced. Moreover, by realizing the identification of the office area range in the network authentication process, the development process can be reduced and the processing efficiency can be improved.

The utility model discloses a kind of ceramic piezoelectric valve and glue dispensing equipment.Ceramic piezoelectric valve includes seat body, valve main body, opening subassembly and adjusting subassembly, seat body is equipped with flow channel;Valve main body its inner cavity is hollowly arranged, and is equipped with valve port;Opening subassembly has the axial activity stroke along valve port, to open or close flow channel;Adjusting subassembly is located in valve main body, and is connected with opening subassembly, adjusting subassembly includes adjusting column, adjusting column has the axial activity stroke along valve port, adjusting column activity can drive opening subassembly to move, to open or close valve port;Adjusting column at least has first adjusting section and second adjusting section, first adjusting section and second adjusting section have deformation complementarity, so that the total length of adjusting column remains unchanged.The ceramic piezoelectric valve provided by the utility model can better ensure the glue-dispensing stability of glue dispensing equipment and ensure the glue-dispensing precision of glue dispensing equipment.

This utility model discloses a raised floor scaffold with height adjustment function, relating to the field of raised floor technology. The utility model includes a base and a crown disposed above the base, and further includes: an adjustment part disposed within the base; two limiting parts, both located outside the base; the adjustment part includes a lifting assembly disposed within the base; and a locking assembly disposed within the base; the lifting assembly includes a connecting pipe slidably connected to the inner wall of the base, the connecting pipe having a connecting groove. This utility model, by incorporating the adjustment part, solves the problems of existing raised floor scaffolds where height adjustment is inconvenient during use, and unevenness in ground flatness during installation leads to unevenness after the raised floor is laid, thus affecting the overall quality.

This utility model relates to the technical field of product testing equipment, specifically to an electronic board testing device, comprising: a base with a first groove on its upper surface, within which several roller conveying devices are arranged side-by-side; an image detection stage and a circuit detection stage, fixed side-by-side on the same side of the base and respectively located directly above the roller conveying devices; two conveyor belts, each fixed on the same side of the base; and a positioning component, the lower part of which is connected to the inner bottom surface of the first groove, the upper part of which passes through the space between adjacent roller conveying devices. This utility model achieves integrated automation of electronic board fixing, conveying, image detection, circuit detection, and classification, changing the traditional manual testing method, greatly improving testing efficiency, and significantly saving testing time.

The application discloses a conduction assembly for an electric water heater, which comprises a control casing and a conduction piece. A water passage is formed in the control casing, and a conduction hole is formed in the water passage in a radial direction. The conduction piece is sealingly inserted into the conduction hole. The conduction piece is at least partially located in the water passage. Limiting grooves are formed in the conduction piece and the control casing in a radial direction of the conduction piece. Limiting pieces are arranged in the limiting grooves. The application has the effects of optimizing the accuracy of the assembly position of the conduction piece and improving the assembly efficiency of the conduction piece.