12results about How to "Stable expansion" patented technology

The invention provides a silicon-based negative pole piece and a lithium ion battery comprising the same, and relates to the technical field of lithium ion batteries. Comprising a negative electrode current collector, a second active material layer arranged on at least one surface of the negative electrode current collector, and a first active material layer arranged on the surface of the second active material layer. The design of the two active material layers ensures high energy density, and meanwhile, the formula design is optimized by combining the bonding characteristic of the interface layer, so that large internal stress is prevented from being generated in the charging and discharging process; the organic porous cross-linked polymer is applied to the negative pole piece, and the polymer is loose and porous and can be subjected to cross-linked polymerization in a high-temperature process, so that negative pole particles are tighter, expansion of a silicon negative pole in a charging and discharging process can be buffered, and stripping and cracking of the pole piece are prevented.

The invention relates to the technical field of plastic forming, in particular to a double-machine co-extrusion plastic net material forming rotating machine head mechanism. Comprising an extrusion head and an annular extrusion opening in the lower surface of the extrusion head. The center of the lower surface of the extrusion head is fixedly connected with a center rod; an extrusion opening in the lower surface of the extrusion head extrudes a net material and then enters the outer side of the central rod; an annular groove is formed in the upper position of the outer wall of the center rod; an upper supporting piece is movably connected into the annular groove in the circumferential direction. An expansion plate is arranged on the outer wall of the center rod around the annular groove; the multiple expansion plates are arranged in an adjacent contact mode, and the arc-shaped outer walls are arranged in a transition mode. The corresponding number of supplementing plates are inserted into the gaps of the multiple expansion plates, so that all the expansion plates and the inserted supplementing plates form a new expansion outer wall, the expansion requirements of different diameters are met, and net materials with different diameters are formed after the net materials are extruded from an extrusion head and expanded.

The invention discloses an air door assembly and a refrigerating system thereof.The air door assembly comprises a driving part and a control part, the driving part comprises a cavity and refrigerants filled in the cavity, one end of the driving part is used for sensing the temperature, and the pressure of the refrigerants is in direct proportion to the temperature; the input end of the transmission mechanism is connected with the other end of the driving part, and the output end of the transmission mechanism is used for being connected with the air door; wherein the driving part drives the transmission mechanism to move under the action of the pressure of the refrigerant in the driving part so as to drive the air door to rotate, so that the cost is reduced and the mounting space is saved while stable control is provided. The invention further provides a refrigerating system.

This utility model discloses a remote terminal port cable fixing structure, belonging to the field of remote terminal technology. This remote terminal port cable fixing structure includes a remote terminal body and a fixing component. The fixing component is disposed outside the remote terminal body and is used to fix the connection between the port and the coaxial cable connector to prevent it from falling off or loosening. The remote terminal body includes a housing, and the front of the housing has several coaxial cable ports. The fixing component includes several first fixing rings, each of which is fitted onto the outside of several coaxial cable ports. A second fixing ring is provided on the side of the first fixing ring away from the housing. First connecting seats are installed on both outer sides of the first fixing rings, and second connecting seats are installed on both outer sides of the second fixing rings. Positioning grooves are formed inside the first connecting seats near the upper and lower ends. Positioning plates are inserted into both positioning grooves, and one side of each pair of positioning plates is fixedly connected to the side of the second connecting seat near the first connecting seat.

The present invention discloses a single-hand-held electric double-balloon digestive tract dilator, comprising an outer balloon and an inner balloon, wherein the inner balloon is arranged inside the outer balloon and connected with the inner tube, the outer balloon is connected with one end of the outer tube, the inner tube is located inside the outer tube, the other end of the outer tube is connected with a first branch tube and a second branch tube, the second branch tube extends into the outer tube and is communicated with the inner tube, the first branch tube and the second branch tube are connected with a syringe through a three-way adapter, and the syringe is installed on a syringe control mechanism; an inner patch pressure sensor is arranged on the inner wall of the inner balloon, an outer patch pressure sensor is arranged on the inner wall of the outer balloon, an outer balloon pressure gauge is arranged on the first branch tube, and the outer balloon pressure gauge is used to record the pressure value detected by the outer patch pressure sensor, and an inner balloon pressure gauge is arranged on the second branch tube, and the inner balloon pressure gauge is used to record the pressure value detected by the inner patch pressure sensor; wherein the syringe control mechanism is composed of a single-hand-held electric pump.

The female metal catheter comprises a catheter body, a catheterization cavity and an air injection cavity are formed in the catheter body, a catheterization hole is formed in one end of the catheter body, a catheterization connecting pipe is arranged on the outer side of the other end of the catheter body, and the catheterization cavity, the catheterization hole and the catheterization connecting pipe are communicated; a ventilation window is formed in the position, close to the catheterization hole, of the outer side of the catheter body, an annular air bag is arranged at the position, corresponding to the ventilation window, of the outer side of the catheter body, and a connecting cavity is formed in the other end of the catheter body. The female metal catheter provided by the invention is made of a metal material, is high in strength and good in durability, is not easy to age and deform, can be stably used for a long time, and reduces the pain and inconvenience caused by frequent replacement of the catheter to a patient; a perfect urethral catheterization and air injection channel is provided, urethral catheterization is smooth, through the arrangement of the one-way valve, air backflow is prevented, stable expansion of the annular air bag is ensured, and the fixing effect is enhanced.

The utility model discloses an efficient sealed cell cryopreservation tube which comprises a cryopreservation tube body and an inflation sealing device. The air inflation sealing device is arranged, namely, the sealing performance of the cryopreservation tube can be enhanced under the preliminary matching of the sealing plug, the sealing air bag can be expanded and sealed in an abutting mode through the matching of the sealing air bag and the air inflation assembly, the sealing performance of the cryopreservation tube is further enhanced, and the locking structure is arranged, namely, when the piston rod is extruded for air inflation, the sealing air bag is locked. According to the technical scheme, the locking shafts arranged on the two sides of the bottom of the spring piece can be moved to the positions of the locking grooves formed in the two sides, so that the locking shafts are quickly inserted and locked with the locking grooves under the action of elastic force, the stability of the expansion abutting sealing state of the sealing air bag is guaranteed, and the air leakage performance is reduced; the lock shaft and the lock groove are quickly unlocked, so that the sealing air bag is released from the expansion state, and the cryopreservation tube main body and the sealing cover can be conveniently disassembled and assembled.

The utility model relates to the field of civil construction discloses a housing construction masonry construction handling device, including the bottom plate, the top fixed connection of bottom plate has two supports, two the other end fixed connection of support has the apron, the one side fixed connection of apron has drive assembly, the one side fixed connection of drive assembly has the roll column, the outside fixed connection of roll column has waterproof shed, the inside fixed connection of waterproof shed has the side, the outside fixed connection of side has two folding plate no.

The utility model belongs to the technical field of agricultural greenhouses, and particularly relates to a folding heat preservation quilt for a greenhouse. According to the main technical scheme, the folding heat preservation quilt for the greenhouse comprises a heat preservation layer formed by soft plastic plates, and two side faces of the heat preservation layer are covered with protective layers formed by fiber woven cloth. Heat preservation reinforcing layers formed by aerogel layers are adsorbed on the two side faces of the heat preservation layer. According to the folding heat preservation quilt for the greenhouse, the heat preservation performance can be greatly improved, and the folding heat preservation quilt is more suitable for heat preservation greenhouses in cold regions with large day and night temperature difference.

The present application belongs to the technical field of engine, and particularly relates to an engine combustion system and a control method thereof. The engine combustion system comprises a cylinder and a jet ignition device. The cylinder comprises a main combustion chamber. The jet ignition device comprises a shell, the shell is provided with an ignition chamber and a spray hole, the ignition chamber is communicated with the main combustion chamber of the cylinder through the spray hole, the spray hole comprises a first spray hole and a second spray hole, the first spray hole and the second spray hole are respectively communicated with the ignition chamber and the main combustion chamber; the inner diameter of the first spray hole gradually decreases along the direction from the inlet of the first spray hole to the outlet of the first spray hole; the inner diameter of the second spray hole gradually increases along the direction from the inlet of the second spray hole to the outlet of the second spray hole; the inlet inner diameter of the first spray hole at the inlet of the first spray hole is smaller than the inlet inner diameter of the second spray hole at the inlet of the second spray hole. By using the engine combustion system in the technical solution, the jet penetration and the flame energy density can be simultaneously improved, so that the jet ignition efficiency is improved.

The present invention discloses an eye bag retractor with a multifunctional adjustable structure, and relates to the technical field of eye bag retractors. The eye bag retractor with a multifunctional adjustable structure comprises a nose bridge, a control panel for controlling the operation of an instrument is fixedly mounted on one side surface of the nose bridge, a cheek plate for positioning the instrument is symmetrically arranged on the other end of the nose bridge, a threaded hole is provided on the outer surface of the cheek plate, a positioning pin is movably mounted on the inner wall of the threaded hole, and threaded columns are symmetrically arranged on the outer surface of the nose bridge. The eye bag retractor with a multifunctional adjustable structure controls the expansion degree of the eye bag skin by hooking the retractor with the cut eye bag skin, and then controlling the telescopic length of the telescopic rod by turning the adjustment knob. Since the tension and length of the telescopic rod are fixed, the skin can be stably expanded, which solves the problem of shaking caused by traditional manual gripping of the retractor and unstable force control, which causes secondary damage to the incision.

The invention relates to the technical field of mobile phone accessories, and discloses a multi-placement-position disinfection type mobile phone support capable of storing a charge pal and a disinfection method.The multi-placement-position disinfection type mobile phone support comprises a base, a telescopic arm and a fixed seat, the telescopic arm is rotationally connected to the top of the base, and the fixed seat is rotationally connected with a telescopic shaft of the telescopic arm through a rotating shaft; a limiting assembly used for preventing the telescopic arm and the fixing base from deflecting is arranged above the base, a disinfection assembly used for disinfecting a mobile phone is arranged above the base, and a storage assembly used for storing and adjusting the position of the power bank is arranged below the telescopic arm. Compared with the prior art, the telescopic arm and the fixed seat have higher fixity and stability, the structure ensures that the telescopic arm and the fixed seat can be kept stable and are not easy to loosen after being used for a long time and in various environments, the mobile phone is more stable when being placed through an abutting mechanism, and the possibility of shaking or inclining is reduced, so that the use experience of a user is improved.