13results about How to "Retention stability" patented technology

The invention relates to the technical field of manufacturing of proximity switches for the nuclear industry, in particular to a sealed passive proximity switch with a permanent magnetic mechanism, which comprises a shell, an execution mechanism, a first fastening nut, a sealed base and a cable outgoing line, and is characterized in that the upper end of the execution mechanism is connected with the bottom of the shell, and the lower end of the execution mechanism is connected with the fastening nut in a matched manner; the bottom of the fastening nut is connected with the sealing base in a matched mode, and the cable outgoing line is arranged at the bottom of the sealing base. Compared with the prior art, the contact system has the beneficial effects that the contact system not only has the characteristics of accurate induction action of an external magnetic object, high stability of the contact system and high sealing protection grade, but also has long-term contact stability under a severe environment condition, and realizes long-term reliable work of the whole machine.

The application relates to the technical field of locks, and discloses a lock box structure convenient to assemble, which comprises a box body, side plates and a cover plate. The side plates are arranged on the outer walls of the two sides of the box body, the cover plate is arranged on the outer walls of the box body and the side plates, the outer wall of the cover plate is provided with a locking mechanism, the locking mechanism comprises a traction rod one, a first connecting rod, a first clamping block, a traction rod two, a second connecting rod and a second clamping block, the traction rod two and the traction rod one are rotationally connected to the middle outer wall of the cover plate through pivots, and the two first connecting rods are rotationally connected to the outer walls of the two ends of the traction rod one. In the utility model, dovetail grooves and sliding blocks are matched to realize the preliminary connection of the box body and the side plates, positioning grooves and positioning blocks are matched to realize the preliminary positioning of the cover plate, the knob of the locking mechanism is used for driving the connecting rod to drive the clamping block to clamp the clamping groove to complete locking, the complicated screw tightening operation is not needed, the assembly process is greatly simplified, and the assembly efficiency is remarkably improved.

This utility model relates to the field of assembly fixtures, specifically a trachea assembly fixture, including a base. One side of the upper surface of the base has a mounting slot, and the other side has two sets of slide rail grooves, with two grooves symmetrically arranged in each set. It also includes: a mounting part located at the mounting slot; and a placement part. In this utility model, a screw slide rail mechanism synchronously driven by a sprocket and chain, and unified adjustment via a handwheel, ensures operational stability and reliability. An anti-dislodgement mechanism consisting of a return spring and a stop block is installed in the placement groove. In its natural state, the stop block partially protrudes from the placement groove, effectively preventing the trachea pre-placed in the groove from sliding out. When it is necessary to insert or remove the trachea, the stop block can be easily retracted by pulling the pull shaft, making operation very convenient. This design solves the problem of accidental dislodgement of the trachea during pre-placement and assembly, ensuring the continuity of the assembly process and further improving assembly efficiency.

The embodiment relates to a reflecting member driving device. The reflecting member driving device comprises a housing; the retainer is arranged in the shell; a reflective member provided in the holder; the moving plate is arranged between the shell and the retainer; a coil and a magnet for moving the holder relative to the housing; and an elastic member connecting the housing and the holder, in which the moving plate is disposed in a first portion of the housing, in which the elastic member is disposed on an opposite side of the moving plate with respect to the first portion of the housing, and is directly coupled to the holder.

This invention discloses an automated warehouse racking system, belonging to the field of warehousing technology. It includes a storage rack and a railcar. The railcar is equipped with a lift, and the output end of the lift is equipped with a loading platform. The output end of the loading platform is equipped with an adjusting rod and a conveying assembly. The storage assembly includes a storage container and a lifting assembly, with several first electric rollers installed inside the storage container. This invention offers two operating modes: single-item direct retrieval and multi-item continuous retrieval. In scenarios involving scattered / urgent items, goods can be directly transferred via the conveying assembly without temporary storage via the storage assembly, resulting in a short operational chain and fast response speed. In scenarios involving batch operations, multiple items can be temporarily stored via the storage assembly, allowing for the retrieval of multiple items in a single round trip, significantly reducing the number of round trips by the stacker crane and improving overall operational efficiency.

In catalyst particles (1) including an electrically conductive carrier (2) and metal particles (3) supported by the electrically conductive carrier (2), the metal particles (3) are embedded in a porous inorganic material (4). The catalyst particles (1) containing the porous inorganic material (4) are ionic-liquid-impregnated catalyst particles impregnated with an ionic liquid (5).

This invention belongs to the field of orthodontic instrument technology, specifically a periodontal targeted near-infrared light bimaxillary therapy device that protects tooth crowns. It includes a protective brace and a bimaxillary irradiation device. The protective brace includes a maxillary protective brace and a mandibular protective brace, each comprising a lingual plate and a labial plate. The labial plate includes a cervical sleeve and a receiving groove. The bimaxillary irradiation device includes an outer irradiation plate, an inner irradiation plate, and a flexible occlusal plate. Near-infrared laser lamps are installed on the outer and inner irradiation plates. This invention achieves simultaneous irradiation of the labial and lingual periodontal tissues of both jaws, significantly improving orthodontic efficiency. It can simultaneously irradiate the entire periodontal area of ​​both jaws in a single treatment, eliminating the need for separate upper and lower jaw procedures, shortening treatment time, achieving simultaneous activation of all periodontal tissues, and improving tooth movement efficiency. The bimaxillary irradiation device uses precise lamp placement according to the periodontal ligament area, working in conjunction with the protective brace to fully cover the protective crown, synergistically avoiding thermal and light damage.

The utility model provides a kind of vehicle-mounted display screen movement device, including base, support, push mechanism and support mechanism;Support includes slide rail, and two sliders are slidably installed in slide rail, two sliders are equipped with first ball head connecting piece, and the side of slide rail is equipped with second ball head connecting piece;Push mechanism includes two first telescopic rods, and first driving motor for driving first telescopic rod to retract, and first telescopic rod is movably installed on base;Support mechanism includes second telescopic rod, and second driving motor for driving second telescopic rod to retract, and second telescopic rod is rotatably installed on base;Wherein, the end of first telescopic rod and second telescopic rod is equipped with ball head block, two first telescopic rods are connected with two first ball head connecting pieces to form ball hinge type connection, and second telescopic rod is connected with second ball head connecting piece to form ball hinge type connection.The utility model can realize the extension, deflection and pitch of display screen Three actions, satisfy multiple viewing needs.

The invention provides a drainage intercepting device, which relates to the technical field of water resource management, and comprises a culvert box, an intercepting mechanism, a chain scraper conveyor, a bucket and a transfer mechanism, the closure mechanism is mounted in the culvert box; a through opening is formed in the top of the culvert box, mounting plates are mounted on the two sides of the top of the through opening, the chain plate conveyor is mounted between the two mounting plates, the top end of the chain plate conveyor extends out of the culvert box, the chain plate conveyor blocks a channel of the culvert box, one side of the chain plate conveyor faces water, and the other side of the chain plate conveyor faces water. The multiple buckets are installed on chain plates of the chain plate conveyor respectively. And the transferring mechanism is used for transferring and receiving the solids excavated by the excavator bucket. The chain scraper conveyor drives the excavator buckets on the chain scraper conveyor to dig solid pollutants in water flow on the upstream side and then convey the solid pollutants to the downstream side, the transfer mechanism receives the solids falling from the excavator buckets, concentrated collection of the solids is completed, unified cleaning of the solid pollutants is facilitated, and the problem that the solids of a traditional drainage facility are scattered and difficult to clean is solved.

A fastener comprises a first fastener, a second fastener and a third fastener. The first fastener comprises a body and a first through hole, and the first through hole is formed in the body in a penetrating mode. The second fastener is matched with the first fastener and comprises a seat body, an extension body and a second through hole, the extension body is formed by extending outwards from the seat body, and the second through hole is formed in the seat body in a penetrating mode; the third fastener is arranged in the second fastener and comprises a base part, a plurality of tooth parts and a plurality of grooves, the tooth parts are formed by extending outwards from two opposite side faces of the base part, and the grooves are defined by the tooth parts in a surrounding mode; wherein the seat body is provided with two arc guide surfaces, and each arc guide surface has a curvature.

The present invention realizes industrially excellent effects such that when electric power having a large output fluctuation, such as renewable energy, is used as a power source, electrolysis performance is unlikely to be deteriorated and excellent catalytic activity is retained stably over a longer period of time, and in addition, the present invention provides a technique that enables forming a catalyst layer of an oxygen generation anode, which gives such excellent effects, with a more versatile materials and by a simple electrolysis method. Provided are an alkaline water electrolysis method including supplying an electrolyte obtained by dispersing a catalyst containing a hybrid nickel-iron hydroxide nanosheet (NiFe-ns) being a composite of a metal hydroxide and an organic substance to an anode chamber and a cathode chamber, and using the electrolyte for electrolysis in each chamber in common, an alkaline water electrolysis method including supplying an electrolyte obtained by dispersing a catalyst containing the NiFe-ns to an anode chamber and a cathode chamber, and performing electrolytic deposition of the NiFe-ns in the electrolytic cell during operation to electrolytically deposit the NiFe-ns on a surface of an electrically conductive substrate having a catalyst layer formed on a surface of an oxygen generation anode, thereby recovering and improving electrolysis performance, and an alkaline water electrolysis anode.

The invention provides a personalized retention device for oral implant peripheral keratinized gingival transplantation and a manufacturing method, and relates to the technical field of medical instruments.The personalized retention device comprises a tissue surface, and the tissue surface comprises a keratinized area, a graft area and a root area; the keratinization area is used for being attached to a lingual side or palatal side area of an alveolar ridge crest incision of a patient, the graft area is used for containing and fixing transplanted keratinization gingiva, and the root area is used for fixing a root reduction valve; the keratinization area is also provided with a healing abutment retention hole, and the healing abutment retention hole is used for accommodating a healing abutment; the graft area is also provided with an observation window, and the observation window is used for observing the fixing pressure and the healing condition of the soft tissue; a fixing nail fixing hole is further formed in the root square area and used for containing a fixing nail. And accurate, efficient and stable fixation of the root-direction reset valve and the transplanted soft tissue can be realized, the operation difficulty and the operation time are reduced, and the keratinized gingival widening effect is improved.

The utility model discloses a lathe processing part clamp, which relates to the technical field of lathe processing, and comprises a butt-joint disc, the butt-joint disc is detachably connected with a lathe three-jaw chuck, the clamp comprises a plurality of clamping seats which are oppositely clamped on the outer side of a special-shaped part, and the space among the concave parts of the plurality of clamping seats is a clamping space for clamping the special-shaped part. The door-shaped frames can be transversely adjusted in a reciprocating mode relative to the clamping base, the ends of the door-shaped frames extend into the clamping space, buffering clamping pieces are fixed to the inner side walls of the ends of the door-shaped frames, and the buffering clamping pieces are provided with attaching parts which are arranged in a bent mode towards the center position of the clamping space; and the fitting parts of the plurality of buffer clamping pieces carry out linear contact clamping on the circumferential outer wall of the special-shaped part. The fitting parts of the buffer clamping pieces are clamped on the circumferential outer wall of the special-shaped part for linear contact clamping, multi-point clamping is adopted, the contact face is small, clamping is firm, the special-shaped part cannot sideslip, and the special-shaped part can be stably fixed for turning operation.