49results about How to "Lightweight and flexible" patented technology

The invention discloses a heat-preservation thermal-insulating plate which comprises the following raw materials in parts by weight: 3-50 parts of silicon dioxide aerogel, 3-50 parts of ceramic fiber, 30-150 parts of a solvent, 1-10 parts of a dispersing agent and 100-200 parts of an adhesive. The heat-preservation thermal-insulating plate has the advantages that on one hand, by virtue of physical properties of the silicon dioxide aerogel, the raw materials such as the ceramic fiber are added to prepare the heat-preservation thermal-insulating plate, so that the prepared heat-preservation thermal-insulating plate is high in pressure resistance, high in breaking strength, excellent in fire resistance and high in durability; on the other hand, the heat-preservation thermal-insulating plate is prepared from the raw materials by using a simple preparation method, on-scale production can be facilitated, the thermal-insulating property of the heat-preservation thermal-insulating plate is excellent, that is, is less than or equal to 22 Mw / m*K, and thus the prepared heat-preservation thermal-insulating plate has the characteristics of being high in fire resistance and hydrophobicity, light in weight and high in flexibility and the like.

The invention discloses a multifunctional gastric lavage bed. The multifunctional gastric lavage bed comprises a bed body, vomiting grooves, head fixators, shoulder fixators and limb and body fixators, wherein the bed body comprises a bed plate; the bed plate is sequentially provided with the head fixators and the shoulder fixators from top to bottom; two side edges of the bed plate are respectively provided with the limb and body fixators; the vomiting grooves are formed in the outer sides of the shoulder fixators. According to the multi-functional gastric lavage bed disclosed by the invention, the structure is reasonable, the operation is convenient, the working efficiency is increased, and the labor is saved.

The invention discloses a fishing buoy with a hollow buoy body internally provided with a balance weight capable of sliding along a central rod. The fishing buoy is provided with the buoy body, a buoy rod and floating hammers. An upper hole is formed in the upper end of the buoy body, an upper sealing ring is arranged in the upper hole, a lower hole is formed in the lower end of the buoy body, and a lower sealing ring is arranged in the lower hole. The buoy rod is arranged in the buoy body, a buoy head is arranged at the upper end of the buoy body, a buoy tail is arranged at the lower end of the buoy body, and the floating hammers are arranged on the buoy rod. The fishing buoy is simple in structure and ingenious in design; the buoy hammers capable of sliding and having the balance weight effect are arranged on the central rod in the hollow buoy body, so that the buoy body has the light flexibility and has the stability of a heavy buoy body, floating and drifting are perfectly combined, and the use effect that a traditional buoy is light or heavy is thoroughly changed.

The invention discloses a low-pressure pilot operated safety valve. The valve comprises an execution mechanism, a transmission mechanism and a conversion mechanism, wherein the execution mechanism consists of a main valve body, a valve rod and a valve core; the transmission mechanism of a balance air chamber consists of a partition board, a cylinder, a piston and a diaphragm assembly; the conversion mechanism of a control air chamber consists of a pilot valve seat, a valve core cover, a diaphragm assembly and a pilot valve core; the pilot valve core can quickly perform air chamber sealing conversion between the pilot valve seat and the valve core cover when sensing the pressure change and moving up and down, and pressure in the control air chamber and the balance air chamber is quickly converted by switching an external drain hole; and by increasing and reducing the area of the air chambers, the main valve can be quickly opened to exhaust air and relieve pressure so as to ensure the safety, and the main valve can be accurately and stably seated and tightly closed. The valve has novel design and simple structure, the excessive pressure is only 1 to 3 percent, the opening precision is very high, the response speed is very high, the seating pressure range is a fixed value, the seating reset is accurate and reliable, and the valve has very good market prospect.

The invention discloses a dam slope concrete mechanical lining seam self-propelled cutting machine and a use method thereof. The cutting machine comprises: a rack and travelling wheels mounted at the lower end of the rack, the rack is equipped with a three-phase asynchronous motor, an electromagnetic speed regulator, a winch, a steel wire rope, and a cutting disc. The three-phase asynchronous motor is connected to the electromagnetic speed regulator through a gear, the electromagnetic speed regulator is in transmission connection to the winch and the cutting disc respectively through a belt, and the steel wire rope is twined on the winch. The invention solves the advancing problem of concrete seam cutting machines, overcomes the existing defect of mismatch of a hand windlass and a cutting machine, provides a safe, reliable and easily operable device for travelling of a dam slope concrete seam cutting machine, at the same time lowers the labor intensity and risk of workers, and improves the work efficiency and work quality.

The invention belongs to the technical field of lithium metal batteries, and particularly discloses a protection method of an alkali metal negative electrode. The method comprises the following steps:cracking a polymer to obtain a polymer carbon material, mixing the polymer carbon material with graphene, and pressing to form a film, thereby obtaining a heat-conducting carbon film; then, stackingthe prepared heat-conducting carbon film on the surface of the alkali metal negative electrode and covering the whole surface of the alkali metal negative electrode to obtain the alkali metal negativeelectrode subjected to protection treatment. The invention also provides the alkali metal negative electrode obtained by the protection method and an alkali metal battery. The method is simple and efficient, and the original battery manufacturing process is not changed; and after the protective layer is added, the nucleation overpotential of the battery is reduced, the coulombic efficiency and the cycling stability are improved, and the battery has a great practical prospect.

The invention relates to the technical field of phenolic resin composite materials, in particular to a preparation method of a fiber-reinforced phenolic resin composite material and the fiber-reinforced phenolic resin composite material. The preparation method of the fiber-reinforced phenolic resin composite material provided by the invention comprises the following steps: first preparing a toughening agent solution and a phenolic resin solution, then pre-impregnating the fiber mat with the toughening agent solution, drying and curing to obtain a toughening agent modified fiber mat , and finally impregnate the toughening agent modified fiber mat with phenolic resin solution, and obtain fiber-reinforced phenolic resin composite material after drying. The fiber-reinforced phenolic resin composite material improves the rigidity and poor flexibility of the traditional fiber-reinforced phenolic composite material, and reduces the material density. large-scale industrial production.

The invention belongs to the technical field of lithium metal batteries, and specifically discloses a method for preparing a metal oxide composite self-supporting thermally conductive carbon film, which includes: (1) cracking a polymer to obtain a polymer carbon material, and combining the polymer carbon material and Graphene is mixed and pressed into a film to prepare the self-supporting thermally conductive carbon film; (2) performing a coordination reaction on the solution containing the self-supporting thermally conductive carbon film, M metal source, and organic ligands to obtain a metal-organic framework@self The heat-conducting carbon film material is supported, followed by carbonization treatment to obtain the self-supporting metal oxide composite heat-conducting carbon film. The invention also provides a negative electrode obtained by filling the metal oxide composite self-supporting thermally conductive carbon film with lithium and an application method thereof in a lithium metal battery. The material obtained by the technical solution of the present invention has excellent performance, and can significantly improve the long-term cycle performance of the lithium metal battery.

The invention discloses a gear-selecting transposition rocker. The rocker is characterized in that a shaft pin is transversely arranged at the upper end of the rocker; a centripetal joint bearing is arranged at the lower side of the rocker; the two sides of the centripetal joint bearing are respectively provided with a bearing cover plate; and a connecting hole is formed on the lower part of the rocker. Through the arrangement, the rocker disclosed by the invention is connected between a speed-changing operating lever and a transposition pull rod of an automobile, so that the speed change of the automobile is portable and flexible, and the deformation of the rocker can be prevented.

The invention belongs to the technical field of lithium metal batteries, and specifically relates to a preparation method of a self-supporting metal lithium negative electrode, comprising the following steps: step (1): cracking a polymer to obtain a polymer carbon material, and combining the polymer carbon material and graphene Mixing and pressing to form a film to obtain the self-supporting heat-conducting carbon film; step (2): Deposit metal lithium in the self-supporting heat-conducting carbon film by high-temperature melting or electrochemical deposition to obtain the self-supporting heat-conducting carbon film Lithium metal anode. The invention also discloses the lithium metal battery negative electrode prepared by the preparation method and its application. The negative electrode prepared by the preparation method of the present invention has the advantages of light weight and flexibility, high mechanical properties, adjustable porosity, and controllable thickness. When used as a metal lithium negative electrode, the current density can be reduced, lithium can be deposited uniformly, and high coulombic efficiency and long life can be obtained. Cycling stable metal lithium battery.

The invention discloses a variable speed operation rod for an automobile. The operation rod is characterized in that the upper side of a bearing fixing sleeve is connected with an operation rod; a fixing shaft is arranged at the lower side of the bearing fixing sleeve, wherein the bearing fixing sleeve, the operation rod and the fixing shaft are in the same axis, and a linkage sleeve is arranged at the lower end of the fixing shaft. Through the arrangement above, a ball bearing is inlaid in the bearing fixing sleeve provided by the invention, and the linkage sleeve is connected with a variable speed telescopic rod of the automobile, thus variable speed of the automobile is easy, convenient and flexible; and the variable speed operation rod provided by the invention is hard to deform, and the service life of a variable speed operation mechanism is prolonged.

The invention relates to a wireless remote control mobile automatic filling machine, comprising a wireless remote control receiving device (2), a wireless remote control sending device (1); and an automatic measuring device (3), the wireless remote control sending device (1) The device (1) sends a signal to the wireless remote control receiving device (2), and controls the automatic metering device (3) to output the raw material to be filled; the beneficial effects of the present invention are: portable and flexible movement, simple operation, high measurement accuracy, There is no need to move barrels or fill the yard on the spot. The operator only needs to change the insertion and discharge pipes, and can complete all operations with the wireless remote control in hand.

The invention belongs to the technical field of lithium metal batteries, and specifically discloses a protection method for an alkali metal negative electrode. The polymer is cracked to obtain a polymer carbon material, and the polymer carbon material and graphene are mixed and pressed into a film to obtain the heat conducting A carbon film; then the prepared thermally conductive carbon film is stacked on the surface of the alkali metal negative electrode and covers the entire surface of the alkali metal negative electrode to obtain a protectively treated alkali metal negative electrode. The invention also provides the alkali metal negative electrode and the alkali metal battery obtained by the protection method. The method is simple and efficient, and does not change the original battery manufacturing process. After adding the protective layer, the nucleation overpotential of the battery is reduced, and the Coulombic efficiency and cycle stability are improved, which has great practical prospects.