7results about How to "Play a self-locking role" patented technology

The utility model provides a novel fireproof antiknock wind pressure resistant sliding door which comprises a door frame metal plate, a fireproof door leaf, a door closing self-locking assembly, automatic bolt mechanisms and a hydraulic mechanism, the door closing self-locking assembly is arranged at the position, corresponding to a self-locking plug, of a side support of the door frame metal plate, and the automatic bolt mechanisms are arranged at the upper position and the lower position in the fireproof door leaf. When the door leaf of the fireproof door is closed, the door closing armature is inserted along the middle of the pair of anti-falling roller columns until the pair of anti-falling roller columns are buckled in the concave part of the rhombic part at the outer end of the self-locking plug, and the fork type hinging arm is dragged by the sliding sleeve through the connecting rod, so that the pair of anti-falling roller columns are kept in a clamping state for the self-locking plug; the tooth end of the bottom end of the anti-disengagement tooth is clamped with the tooth groove of the anti-disengagement ratchet wheel in a matched mode, so that the position of the fork type hinge arm is limited, namely the clamping state of the pair of anti-disengagement roller columns to the self-locking plug is kept, the self-locking plug is prevented from being disengaged from the pair of anti-disengagement roller columns, and the self-locking effect on the fireproof door leaf is achieved.

This application relates to a lifting device for a concrete pouring duct in a seepage-proof wall, belonging to the field of concrete pouring technology for seepage-proof walls. It includes a base, a vertically mounted column on the base, a horizontal bar at the top of the column, a pulley on the horizontal bar, and a winch mounted on the base. A traction rope is wound around the winch's roller, passing over the pulley and connected to a lifting device for clamping the duct. The lifting device includes a lifting plate, a lifting rod, and a clamp. The lifting plate is connected to the traction rope, the lifting rod is rotatably connected to the bottom surface of the lifting plate, and steel wire ropes are connected to both ends of the lifting rod. The clamp is arc-shaped, and both ends of the clamp have through holes for the steel wire ropes to pass through. This application has the advantages of saving time and effort, and high efficiency in lifting ducts.

The utility model discloses an openable telephone support mechanism with self-locking and pre-pressing functions, which comprises a telephone body and a support body, the back side of the telephone body is provided with a pair of transversely arranged mounting holes, the mounting holes are internally provided with jacking shafts, and pre-pressing springs are arranged between the jacking shafts and the inner sides of the mounting holes. An insertion part is arranged at the front end of the jacking shaft, closed inclined planes which are symmetrically arranged are arranged at the front end part of the insertion part, an opening inclined plane is arranged between the closed inclined planes of the insertion part, a rotary round hole for the insertion part to be inserted is formed in the support main body, and an inner side inclined plane meshed with the closed inclined planes is arranged on the inner side of the rotary round hole; linear elastic force of the pre-pressing spring is converted into rotating locking force, self-locking of the support in the opening and closing state is achieved, stable keeping of the opening and closing state is achieved through cooperation of the spring and the inclined face, and loosening caused by external force vibration is resisted.

The utility model provides a household appliance part double-layer protective film with high holding power, which relates to the technical field of protective films and comprises a composite protective film, the composite protective film is composed of a plastic film for electrostatic protection and a glass fiber net-shaped film, the glass fiber net-shaped film is compounded by coating non-setting adhesive emulsion on glass woven gridding cloth serving as a base material, and the non-setting adhesive emulsion is coated on the glass woven gridding cloth. The glass fiber net-shaped film and the plastic film are manufactured into a whole in a press fit mode. The composite protective film is wound outside the winding drum; according to the composite protective film, the plastic film and the glass fiber net-shaped film are adopted, the protective function is provided, the glass fiber net-shaped film is high in strength, not prone to being damaged, capable of being completely peeled off when parts are disassembled, not prone to being torn and not prone to generating residues, convenience is provided for packaging and using, and the service life of the composite protective film is prolonged. The problem that an existing protective film is damaged during stripping is solved.

This application relates to the field of battery coolant production technology, specifically a sampling and extraction device for the production of renewable and biodegradable green battery coolant. The device includes a frame mounted on a testing platform and a liquid delivery device fixed to the frame. A sampling and extraction module is also provided on the testing platform, comprising a testing tube, testing equipment, and a gas delivery device. This sampling and extraction device for renewable and biodegradable green battery coolant production utilizes a oscillation motion during movement to gently agitate the coolant, breaking up static stratification and sedimentation, improving sample representativeness, and ensuring that the test results accurately reflect the quality of the entire batch of products. Simultaneously, the linkage between the oscillation and the heated, enclosed environment allows heating to reduce viscosity, making homogenization easier. The oscillation accelerates heat diffusion, resulting in more uniform temperature, while the enclosed environment prevents heat and component loss, achieving uniform temperature, uniform composition, and stable state, significantly improving the accuracy, repeatability, and reliability of sampling and testing.

The utility model belongs to the technical field of stirrers, and particularly relates to a stirrer with a feeding function, which comprises a body, the body comprises symmetrically arranged bases and a cross frame erected on the bases and connected through a hydraulic mechanism, and a stirring mechanism is mounted at the lower end of the cross frame. A movable stirring barrel is arranged between every two adjacent bases and is matched with the stirring mechanism in the vertical direction, and a supporting seat capable of synchronously ascending and descending under the action of a hydraulic mechanism is mounted at the front end of each base through a lifting mechanism; it can be understood that the hydraulic mechanism is adopted to drive and lift bagged calcium carbonate, the rotatable carrier plate is matched to push materials to the position above the stirring barrel, and convenient semi-automatic feeding is achieved; and meanwhile, through a self-locking type locking mechanism, automatic locking is achieved during lifting, safety is guaranteed, locking is automatically relieved by means of hydraulic power after the lifting device reaches the top point, smooth rotation of the carrier plate is guaranteed, and the feeding efficiency is remarkably improved while the operation safety is guaranteed.

The utility model discloses a kind of CSP lamp bead packaging structures of embedded coplanar welding.The packaging structure includes metal substrate and LED chip with first, second electrode.The core is, metal substrate and electrode have mutually adapted three-dimensional geometry configuration, and they form docking structure, so that electrode bottom surface and metal substrate bottom surface jointly form a wide coplanar welding plane.The utility model realizes the self-alignment and pre-welding mechanical locking of chip by three-dimensional docking structure, solves the existing tiny CSP chip mounting difficulty, the problem of low yield;And through the coplanar welding plane formed, fundamentally solve the problem of insufficient welding area, poor reliability, while optimizing heat dissipation performance.