10results about How to "Reduce push resistance" patented technology

The invention provides a woven stent, a delivery system and a stent system.The woven stent is formed by weaving a plurality of weaving wires in a staggered mode, the end portions of all the weaving wires at at least one end of the woven stent are provided with preset structures, the preset structures are smooth structures, all the preset structures at at least one end of the woven stent are distributed on different circumferential faces, and the preset structures are smooth structures. The conveying system comprises a conveying guide wire, a plurality of friction pads are arranged at the far end of the conveying guide wire at intervals in the axial direction, and the woven stent is used for being loaded on the friction pads. The preset structure at the at least one end of the woven stent is used for being clamped and matched with the gap between the friction pads, so that the probability of stent deloading and withdrawing failure in the conveying process can be reduced, and scratching of the stent to the microcatheter and stimulation of the stent to the blood vessel wall can be reduced.

This invention discloses a biomass pellet burner, comprising: a hopper including an inlet and an outlet; a screw feeder including a screw feed pipe, a screw feed rotating component disposed within the screw feed pipe, and a screw feed drive component connected to the screw feed rotating component, the outlet being disposed at a first end of the screw feed pipe; a combustion chamber disposed at a second end of the screw feed pipe; an air supply device including an air supply chamber and an air supply drive component connected to the air supply chamber, the air supply chamber including an air distribution chamber and a combustion chamber air chamber, the air distribution chamber communicating with the screw feed pipe, and the combustion chamber air chamber communicating with the combustion chamber; and an ignition device, a sealing plate disposed between the air distribution chamber and the combustion chamber, the inlet end of the ignition device being located within the air distribution chamber, and the outlet end of the ignition device being located within the combustion chamber. This invention avoids backflow and backfire by balancing the pressure of the screw feed pipe and the combustion chamber.

The utility model provides a source network load storage integrated energy storage cabinet which comprises a cabinet body, a cabinet door, a battery support, a battery box and an electrical assembly, and a battery cavity and an electrical cavity are formed in the cabinet body. A plurality of layers of bearing units are arranged on the battery bracket from top to bottom, accommodating grooves are formed in the bearing units, rolling bodies are arranged at the bottom of the battery box, and the rolling bodies protrude out of the bottom surface of the battery box. According to the utility model, the accommodating groove is formed in the battery bracket, the rolling body is arranged at the bottom of the battery box, and the height of the rolling body protruding out of the bottom surface of the battery box is smaller than the depth of the accommodating groove, so that the contact area between the battery box and the bearing unit can be reduced when the battery box is mounted, the pushing resistance is reduced, and the battery box is easier to mount in place; and no scratch is generated at the bottom of the battery box. And after the battery box is mounted in place, the rolling body is suspended in the accommodating groove and cannot be damaged after being used for a long time.

The utility model discloses a handheld dust collector floor brush shell with a damping function, and relates to the technical field of handheld dust collector floor brush shells, the handheld dust collector floor brush shell with the damping function comprises a handheld dust collection device, and the bottom of the handheld dust collection device is provided with a floor brush device; according to the utility model, the plurality of shock absorbers are arranged between the bottom of the shell and the floor brush device, so that the shock generated when the floor brush device works on different grounds can be effectively absorbed, the transfer of the shock to a handheld part is reduced, the dust collection process is more stable, the holding comfort of a user is improved, and meanwhile, the abrasion of internal parts caused by the shock is reduced; the product service life is prolonged; the second motor drives the rolling brush to rotate at a high speed, and dust, sundries and the like on the ground can be efficiently cleaned in cooperation with suction force formed by the dust suction nozzle and the dust suction pipe; the observation window is convenient for a user to know the working state of the rolling brush in real time, discover problems and clean in time, and ensure that the cleaning effect is always kept good.

This invention relates to the field of mechanical assembly tooling technology, specifically to an installation device for a double-layer filter screen of a crusher. The device includes a hollow shaft. Through the cooperation of variable-diameter positioning components at both ends of the hollow shaft and a guiding installation component, a stable coaxial reference can be established using the center hole of the crusher rotor. The connecting rod between the second and first connecting rods drives the contact block to expand radially synchronously, causing the arc-shaped friction block to conform to the hole wall and complete the tooling positioning. No modification to the crusher body structure is required. An auxiliary handle drives the threaded rod to rotate, and the guide diameter formed by the guide frame is adjusted via a pull rod transmission. The adjustment size can be intuitively controlled using a scale and indicator needle. The auxiliary rollers on the guide frame reduce the pushing resistance of the filter screen cylinder, minimizing scratch damage to the inner wall and effectively improving the alignment efficiency and installation accuracy of the inner filter screen cylinder. It can adapt to reference center holes of different diameters and cylindrical workpieces of different specifications, helping to improve the tediousness of manual alignment and enhance the consistency of installation quality.

The utility model relates to the technical field of weeding machine, and disclose a sterilization insecticidal weeding machine, including the car body, the car body top fixedly connected with engine, the car body top one side fixedly connected with handlebar. The utility model discloses through the integration pesticide spraying subassembly and the grass cutting subassembly, realized the multifunctional integration operation of weeding, sterilization, insecticidal, specifically, the design of the stirring rod in the medicine cartridge ensures that the liquid medicine mixes evenly, and the water pump and the spray head can be sprayed to the weed and the soil surface with the sterilizing agent or the insecticide accurately, effectively kill the hidden pest and pathogenic microorganism, avoid the problem that the traditional weeding machine only cuts the grass but leaves the pest problem, at the same time, the rotary blade of bottom grass cutting subassembly and the grass board synergistic effect, not only efficient cutting weeds, but also can gather the cut weeds to the car body both sides automatically, prevent the weeds from accumulating on the operator's path, significantly reduce the pushing resistance, improve the operation smoothness and work efficiency.

The invention relates to a docking assembly mechanism for a large battery pack in a cabin. The docking assembly mechanism comprises a module grouping assembly, a battery pack placing trolley, an auxiliary adjusting assembly and a cabin docking assembly, the module grouping assembly is used for forming a battery pack by a plurality of battery modules; the battery pack placing trolley comprises a main beam frame, and a roller guide rail group, a baffle plate assembly and a walking assembly which are arranged on the main beam frame; the roller guide rail group is used for bearing and transferring battery packs; the baffle assembly is used for limiting the battery pack on the roller guide rail group; the auxiliary adjusting assembly is arranged between the roller guide rail set and the main beam frame, and the roller guide rail set evenly supports the battery pack by adjusting the height of the auxiliary adjusting assembly. The in-cabin butt joint assembly is arranged in the energy cabin; the butt joint guide rail group is used for being in butt joint with the roller guide rail group and guiding the battery pack into the energy cabin; and the butt-joint bolt hole seat is used for being matched with a bolt arranged on the battery pack to limit the battery pack on the butt-joint guide rail group. The device is reliable in structure and convenient to operate, and rapid and safe assembly of the large battery pack is achieved.

The present invention discloses a fragrance making extrusion discharging mechanism and a labor-saving fragrance making machine. The fragrance making extrusion discharging mechanism comprises a storage body and an extrusion piece; the storage body comprises an inner cavity and a discharge port; the extrusion piece is located in the inner cavity, and one end of the extrusion piece is a small face end that matches with the inner cavity through a gap, and the other end is a large face end that matches closely with the inner cavity, and a storage area that is always separated from the inner cavity surface is formed between the small face end and the large face end. The extrusion surface used in the fragrance making extrusion discharging mechanism of the present invention is a small face end that forms a gap with the inner cavity, which reduces the pushing resistance. A storage area is formed between the small face end and the large face end, which further reduces the resistance between the extrusion piece and the inner cavity. In addition, the fragrance making extrusion discharging mechanism has a simple structure, and spices are easily accumulated only in the storage area, and the storage area is easy to clean, which greatly improves the convenience of use. Only the large face end of the extrusion piece contacts with the inner cavity, the resistance is reduced, and an extrusion sealing environment is formed, so that the role of the extrusion piece is fully exerted.

The invention provides an aneurysm embolism device and a preparation method thereof.The aneurysm embolism device comprises an implant, the implant is provided with an implant body and a spiral coil at least arranged at the near end of the implant body, and the implant body has a conveying state used for being conveyed and an implantation state used for blocking aneurysm; when the implant main body is in a conveying state, the implant main body is in a long filament shape, and the spiral coil is arranged on the implant main body in a sleeving manner; when the implant main body is in an implanted state, the implant main body is in a three-dimensional shape formed by spirally winding along the length direction of the implant main body, at least the near end of the implant is in a closed shape, and the spiral coil forms a closed barrier layer; the device has the advantages of simplicity, convenience and time saving in operation, small pushing resistance, high blocking rate and high safety.

The present invention discloses a stapler and its slitting assembly and fixing assembly, including an upper mating piece, which is divided into an upper mating surface and a top surface, and the upper mating surface is recessed toward the top surface to form a nail anvil, and the nail anvil is arranged in 4 rows; a lower mating piece, one end of which is hinged to one end of the upper mating piece, and includes a lower mating surface and a bottom surface, and the lower mating surface is recessed toward the bottom surface to form a nail magazine, and the nail magazine is arranged in 4 rows; wherein the upper mating piece and the lower mating piece are both made of metal; wherein the diameter of the slitting assembly is 10 mm. The all-metal nail forming system, the parts are produced by metal powder injection molding technology, and the nail forming effect is better; the cutting and anastomosis resistance and the tension of the cutting knife are reduced by structural optimization; the nail anvil and the nail anvil cover are designed as one piece and produced by metal powder injection molding technology; the separate riveted pin structure is optimized to an integrated riveted column structure.