4results about How to "Not easy to pull" patented technology

The application discloses a zipper device with a pull-easy structure and a production equipment thereof, which comprises a nylon woven belt, a main zipper plate, zipper teeth and a zipper head slidingly arranged between the zipper teeth. The top of the main zipper plate is respectively provided with a sliding groove, and the symmetrically arranged sliding plates on the zipper head are slidingly arranged in the sliding grooves. Metal guide plates are linearly arranged in the sliding grooves. The zipper device with the pull-easy structure and the production equipment thereof are provided. The zipper teeth are slidingly arranged on the zipper head by pulling, and then the zipper head drives the zipper teeth to realize the opening and closing action. Further, the symmetrically arranged sliding plates on the zipper head are slidingly arranged in the sliding grooves, and then the sliding surface of the sliding plates on the side edge of the zipper head is hidden, so that the hook clothes are not convenient to pull the zipper head when the zipper head slides. Meanwhile, the metal guide plates are linearly arranged in the sliding grooves, so that the zipper head is slidingly arranged through the low friction of the metal itself, thereby being convenient to pull the zipper head.

The utility model discloses a greenhouse film fixing device with good stability. The greenhouse film fixing device comprises a greenhouse film support. A greenhouse film body is arranged on one side of the greenhouse film support. A connecting block is arranged at the upper end of the greenhouse film body, a pressing groove is formed in the middle of the bottom of the connecting block, an anti-falling block is fixedly connected to one side of the pressing groove, and an anti-falling groove is formed in one side of the anti-falling block; wherein a connecting frame is arranged below the greenhouse film body, a fixing groove is formed in the inner side of one end of the connecting frame, and a threaded hole is formed in the middle of the other end of the connecting frame; wherein a sliding seat is arranged on one side of the fixing groove, a sliding groove is formed in one side of the sliding seat, a threaded rod is rotationally connected to the other side of the sliding seat, the greenhouse film body is fixed between the greenhouse film support and the connecting block through the connecting frame and the sliding seat, and the stability between the greenhouse film body and the greenhouse film support is enhanced; and the complete greenhouse film is not easily influenced by pulling during use, so that the service life of the greenhouse film is prolonged.

The utility model relates to a cylindrical battery cap assembly and a cylindrical secondary battery, and belongs to the technical field of batteries. Wherein the cylindrical battery cap assembly comprises an anti-explosion sheet, an inner rubber ring and a lower end plate; a lug boss is arranged at the bottom of the anti-explosion sheet, and a positioning cavity with a downward opening is defined by the lug boss; the peripheral wall of the inner rubber ring makes contact with the side, facing the positioning cavity, of the protruding part. A mounting cavity is defined by the inner rubber ring, an opening of the mounting cavity faces downwards, a limiting part is arranged on the inner peripheral wall of the mounting cavity, and the limiting part is arranged on the inner peripheral wall of the mounting cavity in a protruding mode; a gap is formed between the limiting part and the top wall of the mounting cavity; the lower end plate is arranged in the mounting cavity, and the outer edge of the lower end plate is arranged in the gap. According to the cylindrical battery cap assembly provided by the utility model, the lower end plate and the inner rubber ring can be concentric, and the lower end plate is fixed by utilizing the inner rubber ring, so that the lower end plate can be buffered to a certain degree under the working condition of frequent vibration, and a welding printing area between the lower end plate and the anti-explosion sheet is not easy to pull.

This application relates to a low-voltage flexible flat fire-resistant cable, belonging to the field of cables. It includes multiple flat cables spliced ​​sequentially and a butt cable positioned between adjacent flat cables. The flat cable comprises multiple transversely spaced cores, an outer sheath covering the cores, and a flame-retardant wrapping tape covering the cores. A ventilation duct is provided between adjacent cores within the outer sheath, and an air exchange channel is provided between the ventilation duct and the cores on both sides. The internal structure of the butt cable is the same as that of the flat cable, and both ends of the butt cable are equipped with a self-locking quick-connect mechanism between the butt cable and the flat cable for stable connection and quick disassembly and replacement. The butt cable also has a collection device for collecting smoke and dust from the ventilation duct. This application has the effect of preventing the toxic smoke and dust generated when the insulation layer and inner sheath of the cable cores burn due to short circuits or other reasons from spreading to the outside of the cable, thus improving the safety of the environment surrounding the cable.