12results about How to "Increase security risks" patented technology

The utility model relates to the technical field of wire wrapping machines, and discloses a paper-covered copper wire wrapping machine, which comprises a wrapping machine, the top surface of the wrapping machine is fixedly connected with a dustproof cover, and the bottom edge of the front surface of the dustproof cover is fixedly connected with a dustproof mechanism. According to the paper-covered copper wire wrapping machine, through the arrangement of the dustproof mechanism, when the paper-covered copper wire wrapping machine needs to be used, a moving window is pushed into deep grooves in the two sides in a sliding rail through pushing and pulling of a handle, the opening area is increased, after an internal copper wire is installed, the moving window is pulled out and folded, and then an internal machine can be isolated from the outside; the movable window is made of glass, so that the internal winding condition can be observed through the movable window, the effect of conveniently preventing dust from entering the device is achieved, and the problems that the dust settles on a paper-covered copper wire which is being wrapped, the uniformity and integrity of an insulating layer are damaged, the insulating performance is reduced, partial discharge is caused and the like are solved; the service life of equipment is shortened and potential safety hazards are increased.

The application discloses a kind of water-based dispersant and preparation method thereof, belong to pigment dispersant technical field.The water-based dispersant is random copolymer obtained by radical copolymerization of maleic acid mono-aromatic ester intermediate and hydrophilic polymerizable monomer, and hydrophilic carboxyl group and hydrophobic benzyl side chain or phenylethyl side chain are distributed in the side group of its molecular main chain.The dispersant is prepared by esterification, neutralization and water phase copolymerization three-step reaction, the preparation process of the application is green and environmentally friendly, no organic solvent residue, the obtained dispersant realizes pigment anchoring through the π-π conjugation of hydrophobic side chain, and the hydrophilic carboxylate group realizes electrostatic stabilization, and the double synergistic effect significantly improves dispersibility and storage stability, especially suitable for phthalocyanine blue and other aromatic ring-containing pigments dispersion, and can be widely applied in the field of paint, ink and the like.

The embodiment of the present application provides a kind of self-adapting power supply method and equipment, it is related to the technical field of wire-to-board connector.The method comprises: in the case where plug is connected with any one socket, the first quantity and rated current of each irradiation lamp in the lamp panel connected with plug are obtained from the nonvolatile memory, the working current of the lamp panel is determined based on the first quantity and rated current;Wherein, the nonvolatile memory is arranged in the lamp panel, to store the first quantity and rated current of each irradiation lamp in the lamp panel;The power supply control unit is switched for the socket based on the working current, so that the power supply control unit provides working current for the lamp panel through plug and socket.It is found that the plug and socket of wire-to-board connector in related art are prone to insertion error and have safety hazards.

The utility model relates to a hoisting machinery field, proposed single -beam electric hoist anti -falling safety protection special device, including single -beam, the bottom of single -beam is provided with the welding seat, the top of single -beam is provided with safety protection device, safety protection device includes the car driving wheel, the side of car driving wheel is located in the side of single -beam, the side of single -beam is provided with the car driven wheel, the bottom of single -beam is provided with the suspension axle, the side of single -beam is provided with electric hoist, the top of single -beam is provided with the frame, the side of frame is fixedly connected U shape sling, one end of U shape sling is provided with the protection rope, the end away from U shape sling of protection rope is located in the side of electric hoist, the side of frame is fixedly connected with the shell, through above -mentioned technical scheme, solved the problem that single -beam electric hoist anti -falling safety protection special device in related art cannot prevent electric hoist falling.

This utility model relates to the field of pipeline installation for high-purity gas supply devices, and more particularly to an auxiliary support for pipeline installation. It includes a base plate and an installation structure. Four auxiliary frames are fixedly connected to the upper surface of the base plate. An adjustment structure is provided on the upper surface of the base plate, comprising a hydraulic rod mounted on the base plate. A connecting plate is fixedly connected to the output end of the hydraulic rod, and auxiliary rods are fixedly connected to both sides of the connecting plate. A sliding groove is formed on the inner wall of each auxiliary frame, and a vertical rod is slidably connected to the inner wall of the auxiliary frame. An installation rod is fixedly connected to the upper end of each vertical rod, and a support frame is provided between two installation rods. The pipeline installation auxiliary support provided by this utility model has the advantages of facilitating the auxiliary installation of high-purity gas supply device pipelines, enabling convenient and rapid pipeline installation, and allowing for easy adjustment of the auxiliary support according to the installation height.

This utility model belongs to the field of lighting technology and discloses a variable color temperature LED lens assembly for automotive lighting. It includes a substrate, a reflector, a first LED particle, a second LED particle, a heat sink, a cooling fan, a light / dark cutoff plate, a solenoid valve, an adjustment mechanism, and a lens. The reflector is mounted on the right side of the substrate, and its inner side is coated with aluminum to reflect light to the left. The first and second LED particles are mounted parallel to each other on the upper surface of the substrate. The heat sink is mounted on the right side of the upper surface of the substrate, increasing its surface area to dissipate heat from the substrate. The cooling fan is mounted on the lower surface of the substrate, generating airflow around the heat sink to enhance its heat dissipation capacity. The light / dark cutoff plate is mounted on the left side wall of the substrate. This design makes it easier to see road conditions in inclement weather, significantly improving driver safety. It also allows for changing the illumination range, making it suitable for different road conditions and reducing driver eye fatigue.

The invention relates to the technical field of fabricated buildings, and discloses a large-span arched steel corrugated plate structure hoisting alignment device which comprises a plurality of arc-shaped hoisting plates symmetrically arranged front and back, a corrugated steel plate body is placed on the lower sides of the arc-shaped hoisting plates, and matched magnetic hoisting plates corresponding to the arc-shaped hoisting plates are arranged on the inner wall of the corrugated steel plate body. The front side and the rear side of the outer wall of the corrugated steel plate body are each provided with two sets of embedded hollow bolts. The large-span arched steel corrugated plate structure hoisting alignment device can effectively solve the problems that in the prior art, a traditional hoisting tool is difficult to resist external force interference such as hoisting inertia and wind power, so that the hoisting tool shakes, the position of a corrugated steel plate deviates, point contact enables stress to be concentrated on a hoisting point, the hoisting point is sunken and wrinkled, and the integrity of a component is affected; in the prior art, single hoisting needs repeated operations of multiple hoisting, adjusting and falling, so that the hoisting period is greatly prolonged, and the problems of fatigue of a hoisting tool and abrasion of a steel wire rope in the repeated hoisting process are also caused.

This utility model relates to the field of transformer technology, and more particularly to a miniature transformer, including a mounting plate on which a miniature transformer is fixedly mounted. A base plate is provided at the bottom of the mounting plate. Placement holes are correspondingly provided on both the mounting plate and the base plate. A driving block is slidably disposed within the placement holes. Four circumferentially spaced connecting rods are rotatably mounted on the bottom end of the driving block via a rotating seat. This utility model adjusts the distance between the driving block and the contact block by rotating the rotating ring, reducing the angle between the connecting rods and the driving block, and allowing the sliding block to slide in the sliding groove towards the placement groove. A clamping block is placed in the placement groove to limit the mounting plate, facilitating the replacement and disassembly of the miniature transformer. Combined with heat dissipation plates attached to the side walls of the miniature transformer, it dissipates the heat generated during operation, preventing excessive internal heat from increasing safety hazards.

The utility model discloses a coal mine tunnel roof drainage device, which relates to the technical field of coal mine tunnel drainage devices, and comprises a water collecting tank covered below a water spraying area of a tunnel roof, and the water collecting tank is an open groove with a bottom plate at the lower part, side plates at the periphery and an opening at the top; one side plate of the water collecting tank is provided with a water outlet penetrating through the plate surface of the side plate, and the water outlet is connected with a drainage pipe; the device is easy to mount, simple to operate, simple in structure, high in water spraying and drainage efficiency and capable of reflecting the sludge condition in the water accumulation tank in time.

The application discloses a chip test probe, which comprises a chip probe, a needle tube and a temperature change inlay core. The needle tube with the built-in spiral spring is located in a needle sleeve, the tail of the needle head is located in the needle tube, the head of the needle head extends out of the needle tube, the tail of the needle head has a hollow wide-mouth tube with a diameter larger than the needle head, the hollow wide-mouth tube is composed of a plurality of strip petals arranged at intervals in the circumferential direction, a plurality of the strip petals enclose a storage cavity, and a line groove is arranged between the adjacent strip petals; the temperature change inlay core is embedded in the storage cavity of the hollow wide-mouth tube, one end of the spiral spring is in contact with the temperature change inlay core, and the other end is in contact with the tail of the needle tube. The chip test probe improves the sensitivity and accuracy of the detection signal, avoids the risk of electric spark, improves the safety hidden danger, further improves the stability of the detection data, and improves the consistency and comparability of the data.

This invention relates to a chlorine-free green refining method for crude bismuth, belonging to the field of pyrometallurgical technology for non-ferrous metals. The process includes: oxygen-enriched ash blowing: removing arsenic and antimony from crude bismuth to a content of ≤0.08%; vacuum distillation: vacuum distilling the arsenic-antimony-removed crude bismuth to obtain volatile lead-bismuth-tellurium alloy and residual copper-tin-silver alloy; alkali removal of tellurium: adding caustic soda to the lead-bismuth-tellurium alloy under oxygen-enriched blast to obtain a lead-bismuth alloy and alkaline slag; preliminary lead removal through oxidation slag formation: blowing the lead-bismuth alloy into oxygen-enriched air while simultaneously adding slag-forming agents in batches to obtain bismuth-rich lead; continuous crystallization: continuously crystallizing the bismuth-rich lead to obtain refined bismuth with a purity greater than 99.99 wt% and a bismuth-based lead alloy. This invention employs a technical solution of "oxygen-enriched ash blowing – vacuum distillation – alkali removal of tellurium – preliminary lead removal through oxidation slag formation – continuous crystallization," forming a novel short-process, environmentally friendly refining technology to purify crude bismuth into refined bismuth.

The application discloses a cylindrical lithium battery roll groove sealing structure and a sealing process, and relates to the technical field of lithium battery packaging. The cylindrical lithium battery roll groove sealing structure comprises a battery shell of a cylindrical lithium battery, the battery shell is sequentially provided with a pole flow disc, a diaphragm and a steel cap from the lower opening end, the opening end of the battery shell is provided with a roll groove, the inner wall of the roll groove is provided with a sealing ring, the diaphragm and the steel cap are both limited in the sealing ring, and the pole flow disc is located below the diaphragm. The application optimizes the sealing structure design, improves the width of the opening end of the battery shell to > 4 mm, retains a flat platform structure of > 2 mm, simultaneously reduces the inner diameter of the roll groove by 1-2 mm compared with the conventional size, solves the technical pain point that the positive and negative electrodes cannot be welded on the same side due to the narrow edge covering and the absence of a flat platform in the traditional roll groove sealing, makes the mature and low-cost roll groove sealing process adapt to large cylindrical battery production again, and greatly reduces the overall production cost of the large cylindrical battery.