8results about How to "Round appearance" patented technology

The inventive technique process of grainy calcium material for preventing and treating peanut blight primarily includes: adopting the shell powder and weathered coal as raw materials, machining into peanut blight prevention material through agglomeration granulation. The invention has innovative and reasonable design, which not only has simple process, easy implementing, but also has low cost of raw materials, product application convenience, remarkable peanut blight prevention effect, and capability of promoting high-efficient production pf peanut. In particular, the invention applies coastal oyster shell wastes for machining calcium materials for preventing and treating peanut blight, which not only reduces environmental pollution, but also promotes recycling of resources, has very significant economic, social and ecological benefits and greater promotional value.

The preparation method comprises the following steps: crushing raw materials, carrying out dual-frequency ultrasonic extraction in combination with a solvent to obtain a high-activity and high-oxidation-resistance component, filtering through a micro-filtration membrane, mixing an extracting solution and crushed filter residue raw materials according to a ratio, sterilizing, adding modified microcrystalline cellulose and other auxiliary materials, and mixing, so as to obtain the anti-aging body-consolidating and life-prolonging pill. And refining honey and pelleting to prepare the life-prolonging pill with high stability, good pill quality and high oxidation resistance.

The invention discloses an automatic circuit board welding device which comprises an equipment body, a base, a welding machine located above the base and capable of transversely moving and a welding rod located on the welding machine are arranged on the equipment body, a lifting rod is arranged at the bottom of the welding machine, and the action end of the lifting rod is connected with a vertical rod through a circumferential shaking device. One side of the vertical rod is rotatably connected with a swing rod, one side of the swing rod is provided with a welding rod, the welding rod is rotatably and slidably connected with the vertical rod, and the vertical rod is provided with a first control combination used for controlling the swing rod to swing. According to the device, the circumference shaker is arranged between the lifting rod and the vertical rod, when the welding spot coverage area needs to be increased, the welding rod can be controlled to conduct small-radius circle drawing action in situ by starting the circumference shaker, and at the moment, a welding head at the bottom of the welding rod can guide a solution to increase the welding spot area; according to the arrangement, the welding spot can be expanded without frequently controlling the movement of the welding machine, so that the welding spot expanding device has the advantage of higher welding spot expanding efficiency.

The invention relates to the field of medical instruments, in particular to a positioning and binding device for orthopedic reduction fixation, which comprises a bottom shell, positioning grooves are formed in the front side and the rear side of the upper end of the bottom shell, slave insertion holes are formed in the inner walls of the two sides of the front portion and the rear portion of the bottom shell, and first combination rings are fixedly connected to the outer walls of the two sides of the bottom shell. A carrying block is fixedly connected to the inner wall of the middle of the lower end of the bottom shell, and a covering mechanism is installed at the upper end of the bottom shell. The two locking mechanisms are arranged in the bottom shell, in the using process, rotating discs of the two locking mechanisms are twisted, then locking ropes are continuously twisted, the clamping plates are tightly bound to the limbs of a patient through the two locking ropes, the rotating discs are clamped in clamping grooves in the top disc in the fixing process, the locking ropes are kept in a locked state, and therefore the patient can be fixed conveniently. And in the later period of loosening, only the rotating plate needs to be rotated out of the clamping groove, the rotating disc is rotated reversely, and the process is convenient.

The utility model relates to a cabling die auxiliary structure and cabling equipment. The cabling die auxiliary structure comprises a rack, a die holder and a die assembly. The rack is provided with a branching position and a twisting position which are arranged side by side, the branching position is used for installing the branching disc, and the die holder is installed on the rack, located at the twisting position and provided with an installation part; the die assembly comprises an installation cylinder and a die, the installation cylinder is installed on the installation part, the distance between the installation cylinder and the branching position is adjustable, the die is installed in the installation cylinder, located at the end, close to the branching position, of the installation cylinder and provided with a twisting channel, and the axis of the twisting channel coincides with the axis of the branching disc. According to the scheme, the distance between the mold and the branching disc can be regulated and controlled according to the actual situation, and the cabling twisting point is ensured to be positioned in the mold, so that the filling of a wire core on equipment does not deviate during cabling, the cabling appearance is round and neat, the production efficiency and quality can be greatly improved, the structure is simple, and the cost is saved.

The invention discloses a ciprofloxacin PLGA (poly (lactic-co-glycolic acid)) nanoparticle, and particularly relates to a method for preparing the ciprofloxacin-entrapped PLGA nanoparticle by taking benzyl alcohol as a solvent to dissolve ciprofloxacin and then selecting a nanoprecipitation method. The process adopted by the invention is simple and convenient to operate, the solubility of ciprofloxacin in water is effectively improved, and the prepared ciprofloxacin PLGA nanoparticles are spherical, round in appearance, uniform in particle size, good in encapsulation efficiency and good in slow release effect.

The application discloses a portable grinder, which belongs to the technical field of household appliances and specifically relates to a portable grinder which comprises an upper shell, a grinding part arranged at the lower end of the upper shell, and a lower cup body. The grinding part comprises a driving shaft rotatably connected to the lower end of the upper shell, a conical head fixedly connected to the lower end of the driving shaft, and a grinding blade fixedly connected to the lower end of the conical head. A driving motor is fixedly connected to the inside of the upper shell, and the output shaft of the driving motor is fixedly connected to the driving shaft. The conical head is arranged on the driving shaft, and the conical head is located above the grinding blade. When the material moves and falls in the lower cup body, the conical head first receives the falling material. The conical surface of the conical head disperses the material to all directions, guides the material to be evenly spread in the radial direction, and then the material falls on the lower grinding blade, so that the direct impact on the center of the blade (usually the most fragile or stress-concentrated area) is reduced, the connection between the blade and the transmission shaft is protected, the service life of the blade is prolonged, and the failure risk is reduced.

The invention relates to a self-shielding device for radiotherapy and a shielding method. The self-shielding device comprises an electronic flash therapy equipment base; the electronic flash therapy shell is rotationally assembled on the electronic flash therapy equipment base; the high-energy electron accelerator is arranged in the electron flash therapy shell and is used for providing pulse electron beams; the electronic flash therapy head is assembled at the end part of the electronic flash therapy shell, and the tail end of the electronic flash therapy head is used for irradiating the irradiation device; the irradiation device is located on the electronic flash therapy equipment base, and the guide rail is located between the electronic flash therapy equipment base and the electronic flash therapy shell and used for adjusting the position relation between the electronic flash therapy shell and the irradiation device; the sliding sleeve assembly is assembled on the electronic flash therapy head and is arranged corresponding to the irradiation device; moreover, the sliding sleeve assembly is separated from or abuts against the irradiation device. The electronic flash therapy device is simple in structure, the sliding sleeve assembly is arranged, and the sliding sleeve assembly is matched with the electronic flash therapy shell and the irradiation device, so that radiation can be effectively blocked.