7results about How to "Reduce overall outer diameter" patented technology

This invention belongs to the field of cable technology, specifically a thin-walled oxygen-barrier high-temperature resistant cable, comprising a conductor core and a thin-walled outer sheath. The conductor core has a high-temperature resistant insulation layer made of polyetheretherketone (PEEK) composite material on its outer side. Between the high-temperature resistant insulation layer and the thin-walled outer sheath, from the inside out, are sequentially arranged a ceramicized oxygen barrier layer and a flame-retardant reinforcement layer. The ceramicized oxygen barrier layer is a nano-modified ceramicized silicone rubber layer with a thickness of 0.05–0.15 mm, including an outer layer doped with silicon carbide whiskers and an inner layer doped with zinc borate. This invention prepares an ultra-thin ceramicized layer through gradient doping, resolving the contradiction between thin-walled design and oxygen barrier properties, and effectively improving the interfacial peel strength. This reduces the cable's outer diameter and bending radius, making the cable lightweight and suitable for high-dynamic applications.

The application relates to the technical field of special cables, in particular to a high-reliability environment-friendly composite fluoroplastic cable for rail transit and a preparation method thereof. The cable comprises, from inside to outside, a cable core, a water-blocking layer, a shielding layer, an armoring layer and a composite sheath layer. The insulating core of the cable core is provided with a modified fluoroplastic insulating layer, wherein nano calcium hydroxide is added as a hydrogen fluoride absorbent and ETFE resin is added as a toughening agent; the armoring layer adopts a double-layer interlocking steel belt armoring structure; the composite sheath layer comprises a thickened inner sheath layer and a high-hardness modified fluoroplastic outer sheath layer; and a distributed optical fiber temperature sensor is implanted in a center filling rope.

The utility model discloses an anti-seepage container mouth assembly which comprises a bottle mouth which is located on a bottle neck on the top of a bottle body or a barrel body and provided with external threads, an outer cover connected to the bottle mouth in a screwed mode, an inner cover plugged in the bottle mouth and located in the outer cover, and a circle of sunken annular steps arranged on the inner side of the top end of the bottle mouth. The outer diameter of the outer flange of the inner cap is smaller than the diameter of the annular step, so that the inner cap sinks into the bottle neck; a sealing gasket which can hermetically abut against the top surface of the bottle neck and the top surface of the inner cap is arranged on the lower side of the inner top surface of the outer cap; the outer flanging of the inner cover and the annular step form annular line sealing contact; the outer side face of the inner cap and the inner wall face of the bottle neck are in circumferential contact to form sealing connection. A sunken annular step is arranged on the inner side of the top end of the bottle neck, so that the inner cap is arranged below the top surface of the bottle neck and in the bottle neck, and a sealing gasket is arranged on the top end surface of the bottle neck to realize primary sealing; a sealing contact ring is constructed at the outer flanging of the inner cap and the annular step, and a linear contact sealing ring is constructed on the outer side surface of the inner cap and the inner wall surface of the bottle neck, so that a multi-sealing double-cap structure with better sealing performance is formed.

The utility model discloses a bearing and rigid wheel integrated harmonic module which comprises an input shaft, a wave generator arranged on the input shaft, a first supporting bearing and a second supporting bearing arranged on the two sides of the wave generator respectively, a flexible bearing arranged outside the wave generator, and an encoder assembly arranged at one end of the input shaft. A bearing outer ring and a rigid wheel are integrated, a rolling body is arranged between a bearing inner ring and the bearing outer ring, and the rolling body is arranged on the outer side of a cup-shaped flexible wheel cylinder body, so that the axial length and the outer diameter are effectively shortened, a wave generator is integrated with the input shaft, and the speed reducer assembly is arranged at the other end of the input shaft. The inner ring of the bearing is fixedly connected with the cup-shaped flexible gear to form the output shaft, and the inner teeth of the rigid gear are meshed with the outer teeth of the cup-shaped flexible gear, so that the integral weight is relatively light, and the integral rigidity can be effectively improved.

This invention discloses a method for winding a superconducting magnet, relating to the field of superconducting magnet technology, comprising the following steps: (1) preparing a REBCO tape without a metal protective layer; (2) preparing a metal tube and heating the metal tube; (3) connecting the silver layer of the REBCO tape to the metal tube; (4) clamping the base tape and buffer layer of the REBCO tape, rotating the metal tube, and winding a first coil on the metal tube; (5) stopping the rotation of the metal tube after the first coil has been wound to a set number of turns, and cutting the REBCO tape; (6) repeating steps (3)-(5) to wind a second coil on the metal tube; (7) plating silver on the circumferential outer surfaces of the first and second coils; (8) performing an oxidation annealing heat treatment on the first and second coils. This invention significantly reduces the volume and outer diameter of the superconducting magnet formed by winding the superconducting magnet, resulting in a more compact structure and the ability to generate a higher magnetic field strength.

This application belongs to the field of water heater technology, specifically relating to a heat exchange component and a water heater. The heat exchange component includes: an inlet pipe with an inlet port; an outlet pipe with an outlet port; and multiple heat exchange tubes, one end of which is connected to the inlet pipe, and the other end of which is connected to the outlet pipe. The heat exchange component and water heater provided by this application can solve the problem of low heat exchange efficiency in actual use of heat exchange components.

The utility model relates to medical instrument technical field especially a ventricular peritoneal shunt pass bar. The utility model discloses pass bar subassembly, handle, guide piece and shunt tube fixed subassembly, pass bar subassembly includes the pass bar body of being placed in the patient's skin and the installation sleeve of being fixed in the pass bar body front end end portion, shunt tube fixed subassembly includes the installation post of being detachably installed in the inside of installation sleeve, the disc that is fixed in the installation post front end end face and with installation sleeve front end end face abuts and the plug rod of rotating being arranged in the disc front disc surface middle part and being inserted in the shunt tube spout, the guide piece detachably sets up in the installation sleeve outside, the handle is fixed in the pass bar body rear end. The device can reduce the external diameter of pass bar subassembly whole under the condition of keeping the shunt tube diameter invariable to reduce the injury to the child when puncturing.