8results about How to "Increase contact length" patented technology

The application relates to the technical field of medical care, in particular to an infusion automatic heat preservation device for operating room nursing, which comprises a spiral covering type heating belt, a control module and a power supply unit. An electric heating wire is internally insulated and packaged in the spiral covering type heating belt, and a temperature sensor is arranged on the inner surface of the spiral covering type heating belt. The spiral covering type heating belt is in a strip structure, is used for being spirally wound on one end of an infusion tube close to a human body, and makes the inner surface tightly adhere to the outer wall of the infusion tube. The control module is arranged on the outer surface of the spiral covering type heating belt and is electrically connected with the electric heating wire and the temperature sensor, is used for controlling the heating state of the electric heating wire according to the feedback signal of the temperature sensor, and the power supply unit is used for supplying power for the control module and the electric heating wire. The application provides the infusion automatic heat preservation device which can realize accurate end heating, has high heat exchange efficiency, is compact in structure and safe and reliable.

This utility model discloses a connection structure for terminals and enameled wires, relating to the field of conductive component assembly technology. It includes a terminal frame body and connecting components. A winding block is installed on the side of the terminal frame body. The connecting components, used to increase the welding length, are disposed on the side of the terminal frame body, and two sets of connecting components are provided. Each connecting component includes a welding terminal strip and an enameled wire body, with the enameled wire body disposed on the inner side of the welding terminal strip. The welding terminal strip and the terminal frame body form a V-shaped structure. This connection structure for terminals and enameled wires pre-presses the V-shaped terminal structure during welding, allowing the V-shaped terminals to contact before welding. The welding width of the terminal can be designed to be 1.6–2.0 mm, thereby increasing the contact length between the enameled wire and the terminal, increasing the welding length between the terminal and the enameled wire, forming a wider welding process range, and simplifying the inspection of the welding position after welding, thus reducing the product scrap rate.

This utility model discloses an L-shaped battery that is easy to stack, comprising at least two L-shaped battery bodies. Each battery body has a protrusion and a groove that matches the protrusion. Two adjacent battery bodies are stacked and assembled by the matching protrusion and groove. The protrusion is detachably mounted on the battery body, and a limiting component is provided between the stacked protrusion and groove. This L-shaped battery, through the matching of the protrusion and groove, precisely guides alignment and improves stacking efficiency; the detachable protrusion facilitates individual replacement, reducing maintenance costs; the limiting component enhances the connection stability after stacking, prevents separation due to vibration, ensures the reliability of the battery pack structure, and is suitable for multi-layer stacking scenarios.

The application provides a bevel edge fast-feeding turning tool, which comprises a bevel edge fast-feeding tool bar and a bevel edge fast-feeding tool piece; one side of the top corner side of the bevel edge fast-feeding tool piece is chamfered by 17.5 degrees as a rake face; the other side of the top corner side of the bevel edge fast-feeding tool piece is chamfered by 10 degrees as a relief face; the intersection of the rake face and the relief face is a cutting edge; and the outer edge of the cutting edge is a blade edge chamfering. The bevel edge fast-feeding turning tool has the advantages that the contact length of the main cutting edge of the tool piece and the chip is prolonged through the special blade edge design concept, the concentrated wear of the tool tip position is shared, the heat dissipation area of the tool tip is increased, the blade edge wear is delayed, and the service life of the tool piece is prolonged; and the bevel edge fast-feeding turning tool breaks through the limitation that the conventional tool piece takes the tool tip arc as the blade edge, and the tool bar angle is deflected and the top side of the tool piece is chamfered, so that the chip thickness is ensured, the feeding speed is increased, and the surface roughness is reduced.

This utility model belongs to the field of battery technology and discloses an electrode structure, a wound cell, and a battery. The electrode structure includes an electrode body comprising a foil layer and an active material layer disposed on at least one side of the foil layer along its thickness direction. One end of the foil layer along a first direction is flush with the active material layer, and the other end of the foil layer along the first direction extends beyond the active material layer to form a first empty foil portion. The width of the first empty foil portion along a second direction is L1. The first direction is the direction of the central axis of the wound cell formed after the electrode structure is wound, and the second direction is perpendicular to the first direction. The tab body includes a connecting portion and an external portion. The connecting portion is connected to the first empty foil portion, and the external portion is located on the side of the connecting portion away from the first empty foil portion. The width of the external portion along the second direction is L2, where L1 > L2. The electrode structure, wound cell, and battery of this utility model have a simple structure, low production cost, and can also improve the battery's capacity, quality, and safety performance.

The utility model relates to the field of conveyor equipment, in particular to a low-noise carrier roller which comprises a roller shaft, a roller cylinder, a bearing piece and a bearing ring seat, a protective sleeve is installed between the bearing piece and the bearing ring seat in an inserted and sleeved mode, a sealing device is arranged at the outer end of the bearing piece, and the sealing device comprises a first sealing sleeve piece, a second sealing sleeve piece and a sealing ring. A mounting ring groove is formed in the inner wall of the outer end of the second sealing kit, the two sealing rings are symmetrically arranged side by side, the outer ring parts of the two sealing rings are correspondingly inserted into the mounting ring groove, and the two symmetrical outer ends of the inner ring parts of the two sealing rings obliquely extend outwards to form lip edges correspondingly attached to the outer wall of the first sealing kit; an oil storage cavity for externally controlling introduction of lubricating oil is arranged between the sealing device and the bearing part, and a step ring is arranged on the outer wall of the inner end of the protective sleeve, so that a clamping groove communicated with the oil storage cavity is formed between the outer end of the protective sleeve and the bearing ring seat; the low-noise carrier roller can effectively reduce the damage of jumping wear, reduce noise, improve the rotation flexibility and prolong the service life.

The utility model belongs to high altitude welding technical field discloses a device for preventing high altitude welding pipeline spark and foreign matter falling, including the object tray, both ends of the object tray are fixed on the pipeline through the hoop, one side of the object tray is fixed with the baffle for close -fitting pipeline, a plurality of recessed arc grooves are arranged on the baffle, the interval of arc groove is matched with the interval of pipeline, the diameter of arc groove is matched with the diameter of pipeline. The utility model can prevent the falling of spark and other foreign matters, and the safety is greatly improved.

The utility model belongs to blow molding machine technical field, and disclose plastic bottle blow molding machine cooling water channel optimization structure, including blow mold body, the inside of blow mold body is provided with square groove, the inside fixed establishment of blow mold body is equipped with connecting plate, the right side fixed establishment of connecting plate is equipped with spring no.