36results about How to "Low production precision requirements" patented technology

The invention discloses a slide linkage structure for drawers, which comprises a drawer side plate, the inside of the drawer side plate is provided with a panel adjusting device, the front and rear side plates of the bottom part of the panel adjusting device are respectively provided with a stop hook for preventing a movable rail of a slide rail from going forward and a locking dog for preventing the movable rail from drawing back, and the stop hook and the locking dog are protruded from the bottom part of the drawer side and connected with the movable rail; the front end of the top part of the movable rail is inserted into the stop hook, the front end face of the movable rail is pressed against the internal end face of the stop hook, and a position which is arranged at the rear part of the front end face of the movable rail and corresponding to the position of the locking dog is provided with a backstop hole; and a gap eliminating component is arranged between the front end face of the movable rail and the internal end face of the stop hook. The gap eliminating component is at least arranged on the internal end face of the stop hook; or the gap eliminating component is at least arranged on the front end face of the stop hook. In the invention, the gaps between the front end face of the movable rail and the internal end face of the stop hook are eliminated by using the gap eliminating component, thereby ensuring the reliability of linkage between the drawer side and the movable rail. The slide linkage structure for drawers disclosed by the invention has the advantages of simple and reasonable structure, reliable linkage, not rocking, zero gap, low production precision requirements, and long service life.

The invention relates to the technical field of moulds for injection molding, in particular to a mould for integral injection molding of glass and a nail column. The mould comprises an upper mould, alower mould and an insert arranged in the lower mould in a lifting manner, wherein a profiling surface used for fitting and placing glass is arranged on the upper surface of the lower mould, a steppedslot used for enabling the insert to be lifted is formed in the upper surface of the lower mould, a small slot of the stepped slot is arranged at one side close to the profiling surface, a large slotof the stepped slot is arranged at one side far away from the profiling surface, a step surface is formed at the junction of the large slot and the small slot, a flank part of the insert is arrangedin the large slot and is arranged opposite to the step surface, the step surface is used for limiting a lifting position of the side wing part, the head of the insert and the small slot of the steppedslot are in sliding fit, and when the upper mould and the lower mould are closed, the small slot of the stepped slot and the head of the insert define one injection molding cavity between the glass and the nail column. The mould provided by the invention has the advantages that production accuracy requirement of an assembly product on the glass about to being subjected to injection molding can belowered and truck loading positioning accuracy requirement of a glass edging assembly also can be met.

The invention relates to a high-density integrated optical waveguide. The optical waveguide is arranged on a waveguide substrate, including: a plurality of curved waveguides; a rectangular coordinate system is established with the bending direction of the curved waveguides as the y-axis and the light propagation direction as the x-axis; and based on the rectangular coordinate system , the curved waveguide is periodically bent in the curved direction along the propagation direction; a plurality of curved waveguides are arranged in parallel along the y-axis direction, and the curved waveguides are perpendicular to the y-axis direction, forming A curved waveguide array; realizing the optical waveguide signal transmission function or the optical waveguide directional coupling function of the optical waveguide by adjusting the coupling coefficient between the curved waveguides. The optical waveguide provided by the invention gets rid of the sensitivity and dependence on parameters such as waveguide spacing and wavelength under high-density integration, so it has structural robustness and broadband characteristics.

The invention discloses a swing angle and its application in a tooth surface polishing and bleaching device. The swing angle drives the swing output mechanism through a single handle, which converts the continuous rotation input into a back and forth swing output, so as to achieve a specific obtuse angle steering output. The single-handle drive swing output mechanism can be divided into two types: oblique handle drive and curved handle drive according to its single handle structure and function. The main body of the unit is a portable bleach handle with a built-in battery power source and a detachable swinging angle with dual-function rubber cup attached. The swing angle can also be used alone as a tooth cleaning angle in a dental clinic. The device also comes with a dual-dosage mixing component, which stores polish and bleach separately, and is mixed evenly by the handle power source before use and then applied to the tooth surface; Avoid possible bleach infection when handling.

The invention relates to a powdered carbon box in an electrophotographic imaging device, comprising a developing unit and a photoreceptor unit which are installed together in a detachable way. The developing unit at least comprises a developing roller, and the photoreceptor unit at least comprises a photosensive drum; and the developing roller and the photosensitive drum are matched so as to leadthe developing roller to be capable of providing powdered carbon to an electro-static latent image on the photosensitive drum effectively, thus froming a developing image. The powdered carbon box further comprises an elastic part and an elastic bracket which is connected with the developing unit or the photosensitive unit in a detachable way, wherein the free end of the elastic part is connected with and forcibly pushes the photosensitive unit or the developing unit so as to lead the developing roller to close up the photosensitive drum.

The invention discloses a forcible blank bottle loading device for a plastic bottle blowing machine, which comprises a loaded support, wherein a loaded bar and a blank inserting head are arranged in the loaded support, roller wheels are arranged at the bottom of the loaded bar and are contacted with a loaded track, the blank inserting head is matched with the inner diameter of a plastic blank bottle that is arranged between a small turntable and a big turntable, the forcible bottle blank loading device for the plastic bottle blowing machine is characterized in that a blank pressing support and an adjusting bolt are arranged at one side of the loaded track and are connected with a blank pressing track, the loaded bar is provided with a compression spring, and one sides of the roller wheelsare connected with a compression wheel that is contacted with the blank pressing track. For the forcible loading device in the scheme, the inner diameter deviation of a bottle neck can be changed to be plus or minus 0.15mm from originally plus or minus 0.05mm, so that the application range of the blank inserting head is wider, and the requirement for the production accuracy of a blank injection system can be also reduced so as to further save cost.

The invention discloses a building electrical cabinet convenient to overhaul and replace. The building electrical cabinet comprises an electrical cabinet body, a mounting mechanism arranged in the electrical cabinet body and a supporting mechanism arranged at the bottom of the electrical cabinet body. And the mounting mechanism comprises a mounting plate arranged in the electrical cabinet body and a transverse plate which is detachably mounted on the mounting plate and is used for mounting various electrical elements. The mounting plate, the transverse plate, the mounting hole groups, the mounting grooves formed in the transverse plate and the mounting screws facilitate detachable arrangement of the transverse plate on the mounting plate, and meanwhile, the transverse plate with a proper size can be selected for mounting according to needs, so that modular mounting and replacement of the element group of the electrical cabinet are facilitated; the purposes of facilitating timely maintenance of the equipment, improving the maintenance efficiency of the electrical cabinet and ensuring the use quality of the electrical cabinet are achieved.

The application relates to an adaptive car cover locking mechanism and a car cover locking system, and relates to the technical field of car cover locks. The automobile cover locking mechanism includes a fixed seat and a lock pin rod, one side of the fixed seat is used to be fixed on the cover of the automobile, and the fixed seat includes an adjustment cavity, and the adjustment cavity is provided with relative intervals Two guide assemblies, the two ends of the lock pin rod are respectively provided with an adjustment end and a locking end, the adjustment end is accommodated in the adjustment cavity and is located between the two guide assemblies, the two ends of the adjustment end The side surfaces are slidably attached to the corresponding guide components, and can move back and forth in the adjustment cavity along the radial direction of the adjustment end, so as to realize the lock between the locking end and the cover provided on the automobile. alignment. The automobile cover locking mechanism provided by the present application can ensure better alignment between the lock pin rod and the cover lock on the premise of lowering the precision requirements of related parts, and solve the problem of difficulty in opening and closing the cover lock.