1381results about How to "Restricted movement" patented technology

The invention relates to a heat-resistant antimicrobial polylactic acid material and a preparation method thereof. The material comprises a polylactic acid base material and a nano silver/graphene oxide nano composite material which is uniformly dispersed in the polylactic acid base material, wherein the mass percent of the nano silver/graphene oxide nano composite material relative to the polylactic acid base material is 0.1-10%. The nano silver/graphene oxide nano composite material is obtained by forming nano silver particles on the graphene oxide surface by performing in-situ reduction on silver nitrate in a graphene oxide solution, and the mass ratio of the nano silver to the graphene oxide is (1-120):100. The diameter of the graphene oxide is 100nm-50 mu m, and the thickness is 1-20nm. The heat-resistant antimicrobial polylactic acid material has higher heat-resistance and mold resistance than the common polylactic acid material. The heat-resistant antimicrobial polylactic acid material is suitable for manufacturing antimicrobial clothes.

The invention discloses a high-flame-retardance modified nitrile rubber cable material. The raw materials of the high-flame-retardance modified nitrile rubber cable material comprise the following components: nitrile rubber, natural rubber, fluorinated silicone rubber, attapulgite, nano-calcium carbonate, nano-zinc oxide, zinc methacrylate, modified ammonium polyphosphate, dipentaerythritol, aluminium hydroxide, hydrotalcite, polyethylene-graft-maleic anhydride, polydimethylsiloxane, benzoyl peroxide, 2,5-dimethyl-2,5-di(tert-butylperoxy) hexane, lignin, acrylate rubber, accelerant, plasticizer and antiager. The high-flame-retardance modified nitrile rubber cable material disclosed by the invention is good in flame retardance and high in strength, and the cable produced from the high-flame-retardance modified nitrile rubber cable material is long in service life.

The invention provides offshore power generating equipment. The offshore power generating equipment comprises an offshore power generating unit and an anchor chain component, wherein the anchor chain component is used for connecting the offshore power generating unit with the seabed, the offshore power generating unit comprises a wind power generating set, a wave power generating set and an ocean current power generating set, the wind power generating set is arranged above a sea surface, the wave power generating set floats on the sea surface and is fixedly connected with the wind power generating set, and the ocean current power generating set is arranged below the sea surface and fixedly connected to the lower end of the wave power generating set. The wave power generating set comprises at least three float bowls, floating platforms, wave gathering plates and at least one fixed plate, the floating platforms and the wave gathering plates are corresponding to the float bowls in number, and the fixed plates are fixedly connected with all float bowls and used for mounting the wind power generating set. The offshore power generating equipment has the advantages that three clean energies including wind energy, wave energy and ocean current energy are comprehensively utilized, power is transmitted out via one power transmission circuit, power generating capacity and power generation stability are improved greatly, and power generation cost in each unit is lowered effectively.

The invention discloses a centralized dispatching system and method for inspection robots in a transformer substation. According to the centralized dispatching system, both a lifting platform and a fixing device are fixed to an inspection robot transport platform, and the lifting platform is connected with a lifting control device; the inspection robot transport platform is connected with a communication module, the communication module communicates with a dispatching server, and the dispatching server sends a dispatching command to the inspection robot transport platform; and the inspection robots are fixed to the inspection robot transport platform through the fixing device, and the inspection robots can be moved in or out of the inspection robot transport platform through the lifting platform. The centralized dispatching system has the beneficial effects that movement of the inspection robots can be limited effectively in the transport process, damage to robot bodies and related electronic components is reduced in the transport process, and the safety of the inspection robots is guaranteed in the transport process.

The invention discloses an outer wall insulation board installation mechanism which comprises a car body and wheels. The upper surface of the car body is fixedly connected with two symmetrically arranged first supporting rods; a placement plate is arranged between the two first supporting rods; an adjustment mechanism is arranged at the bottom of the placement plate; the upper surface of the placement plate is fixedly connected with two symmetrically arranged second supporting rods; a clamping mechanism is arranged between the two second supporting rods; and a limiting mechanism is arranged onone side of the wheels. The operation is convenient, the outer wall insulation board is convenient to install, and the problems of high danger and safety impact to workers due to the fact that when the outer wall insulation board is installed, workers need to stand on a lift and hold the insulation board for the installation are avoided; and meanwhile, movement of the installation mechanism is effectively limited; and the problems of unstable placement and influenced installation efficiency and installation quality during moving the installation mechanism to a designated position are avoided.

The invention provides a circular tube-type anastomat. The circular tube-type anastomat comprises a shell, a nail anvil pull rod, a nail push rod, a knob and a percussion handle, wherein the nail anvil pull rod is accommodated in the shell; the nail push rod is sheathed onto the nail anvil pull rod; the knob is connected with the near end of the shell so as to control the nail anvil pull rod to move; and the percussion handle is pivotally connected onto the shell and is abutted with the near end of the nail push rod. The circular tube-type anastomat also comprises a safety mechanism movably positioned in the shell so as to limit the movement of the percussion handle. The safety mechanism comprises a locking piece, a safety block and a torsional spring, wherein the locking piece can be abutted with or separated from the percussion handle; the safety block is relatively arranged on the near end of the locking piece; and the torsional spring is connected with the locking piece and the safety block. The nail anvil pull rod is provided with a stay rod pin, and the safety block is provided with a shifting chute matched with the stay rod pin. When the knob is rotated to a percussion position, the locking piece is separated from the percussion handle. According to the circular tube-type anastomat provided by the invention, mistake percussion can be effectively prevented from occurring, so that surgical procedures are simpler and more convenient.

The invention discloses a two-component PU (polyurethane) coating. Firstly, castor oil is used for cross-linking prepolymers: a multifunctional group structure in the castor oil can cross-link the polymers to a certain extent, the cross-linking degree of the polymers is increased, so that the interaction force among molecular chains is increased, motion of the molecular chains is hindered, water molecules can hardly enter the molecular chains to enable the polymers to swell, and the water absorption of a film is reduced; meanwhile, the castor oil is a triglyceride of fatty acid, the film has the good hydrophobicity due to long nonpolar fatty acid chains in molecules of the castor oil, and the water absorption is further reduced; besides, ester groups in the castor oil have higher cohesive energy, so that the tensile strength of the film can be enhanced; ethyl cellulose has better heat resistance and thermoplasticity, has good compatibility with PU and can improve the comprehensive performance of the prepolymers; then blending modification is performed on the PU prepolymers and polysilsesquioxane.

The invention provides a method for preparing a lithium ion battery negative electrode binder, and a method for preparing a lithium ion battery negative electrode material. The crosslinked PEI binderprepared in the invention has the advantages of high solubility in water, low toxicity, non-flammability, greenness, environmental protection, and realization of industrial production; the prepared crosslinked PEI binder has a hyperbranched network structure, and the structure can form a multidimensional strong hydrogen bond together with silicon in order to firmly wrap silicon nano-particles, andthe flexible hyperbranched PEI molecular chain can effectively buffer the stress generated by the volume expansion of silicon, and flows to the damaged surface when the volume of the silicon shrinksto afresh form a hydrogen bond in order to achieve an effective self-repairing effect; and the network structure can effectively limit the movement of silicon, improve the deformation resistance of electrodes and ensure the integrity of a negative electrode, and can effectively solve the volume effect of the silicon negative electrode, so the cycle stability of the silicon negative electrode is greatly improved, thereby the demand of electric vehicles and other large energy storage devices for high specific capacity batteries is met, and the development prospect is broad.

The invention discloses a cold-resisting oil-resisting modified fluorine rubber cable sheath material which comprises the following components in parts by weight: 50-70 parts of fluorine rubber, 15-30 parts of silica rubber, 15-20 parts of fluorine silica rubber, 10-25 parts of pre-swelled organic clay, 15-25 parts of white carbon black, 5-13 parts of ternary nylon, 1-2.5 parts of stearic acid, 3-10 parts of active magnesium oxide, 3-9 parts of rare earth complex, 5-12 parts of calcium hydroxide, 0.5-1.8 parts of polyethylene glycol, 1-5 parts of epoxy octyl stearate, 1-2.5 parts of epoxy triglyceride fatty acid, 4-8 parts of a bisphenol vulcanizing agent, 1-3 parts of an accelerant, 0.5-2 parts of an anti-aging agent MB and 0.8-1.5 parts of an anti-aging agent 4010NA. The cold-resisting oil-resisting modified fluorine rubber cable sheath material disclosed by the invention is excellent in cold resistance and oil resistance and is good in comprehensive property and long in service life when used for manufacturing a cable sheath.

The invention provides a thermoplastic polyurethane elastomer with a high barrier property and a preparation method thereof. The thermoplastic polyurethane elastomer is prepared from the following raw materials in parts by mass: 20 to 50 parts of diisocyanate, 50 to 80 parts of oligomer polylol, 5 to 15 parts of a chain extender, 2 to 8 parts of laminar silicate, 0.5 to 2 parts of a silane coupling agent and 0.1 to 1 part of a catalyst, wherein the oligomer polylol is prepared from polycarbonate polyol and a vinyl alcohol oligomer according to the mass ratio of 1 to (1 to 5). The thermoplastic polyurethane elastomer is prepared through a method of pre-polymerizing and then carrying out chain extension. The thermoplastic polyurethane elastomer provided by the invention has good mechanical properties and has relatively high barrier property on oxygen and steam.

The invention discloses a hyperbranched polyamidoamine modified plant fiber reinforced polypropylene micro foaming composite material and a preparation method thereof. The hyperbranched polyamidoaminemodified plant fiber reinforced polypropylene micro foaming composite material consists of 97-98 wt% of polypropylene composite material and 2-3 wt% of chemical foaming agent, wherein the polypropylene composite material consists of polypropylene, hyperbranched polyamidoamine plant fiber, PP-g-GMA, antioxidant, lubricant and other additives. The hyperbranched polyamidoamine modified plant fiber reinforced polypropylene micro foaming composite material has the characteristics of low density, high strength, high rigidity, fine cell pores, uniform distribution, etc., can meet application requirements of automobile parts, adapts to development concepts of energy saving and environmental friendliness, and is in line with the development trend of automotive lightweight, therefore, the materialhas a broad development prospect in the field of automobiles.

A device and method for compensating or unloading the prestressed load of an anchor cable. For an anchoring project in which the length of the steel strand at the exposed section of the anchor cable meets the tension length, the device includes: a limiting plate, a small jack and a support tube. For the anchor cable For the anchoring project where the length of the steel strand at the exposed section does not meet the tension length, the anchor cable prestress load compensation or unloading device also includes an anchor cable extension device. Anchor cable prestress load compensation or unloading methods include: install anchor cable prestress load compensation or unloading device, install tension jack and tool anchor, insert tension tool anchor clip to tighten external steel strand; start tension The jack oil pump applies the load until the working anchor is pulled and the clip of the working anchor is loosened, continue to apply the load or unload to the specified load value, and then start the small jack to load and push back to the limit plate, the clip re-cables the steel strand, and then Unloading, to complete the anchor cable stress compensation or load reduction, so as to reliably ensure the load compensation or unloading effect of the anchor cable prestress.

The invention discloses a preparation method of a hollow mesoporous silica microsphere-reinforced epoxy resin composite material. The preparation method comprises preparing hollow mesoporous silica microspheres, carrying out coupling treatment through a silane coupling agent, adding the coupled microspheres into an epoxy resin oligomer, carrying out vacuum mixing, ultrasonic treatment and vacuum-pumping treatment to obtain a hollow mesoporous silica microsphere/epoxy resin mixture, adding a curing agent and a promoter into the mixture, carrying out curing at 80-100 DEG C for 3-6h, and carryingout curing at 140-180 DEG C for 4-8h to obtain the hollow mesoporous silica microsphere-reinforced epoxy resin composite material. The preparation method has simple processes, realizes a low cost andeasily satisfies the requirements of industrial production. The hollow mesoporous silica microsphere-reinforced epoxy resin composite material has good comprehensive performances. Compared with the pure epoxy resin cured product, the composite material has higher glass-transition temperature, higher storage modulus, better tensile strength and better bending strength.

The invention relates to a method for producing highly dimensionally stable half shells from a cut board, wherein the half shell is pre-formed by deep-drawing in a first die (28, 46), optionally using at least one hold-down (56), wherein the first die (28, 46) has at least one stamp (48), one die floor (50), one die supporting surface (52) and a frame region and wherein the pre-formed half shell (30, 60) is then finally formed in a second die (34, 62), particularly in a calibration tool. In addition, the invention relates to a device for producing a half shell. The problem of specifying a method which simplifies the production of highly dimensionally stable half shells is solved in that the board is cut having a positive dimensional deviation in the specified tolerance range, in consideration of the desired final form of the pre-formed and finally formed half shell, before deep-drawing, the die floor (50) of the first die (28, 46) is moved relative to the die supporting surface (52), the board is clamped between the die floor (50) and the stamp (48) of the first die (28, 46) and the board is guided in being deep-drawn.

The invention provides an elevator door device which prevents a horizontally movable door plate from dropping owing to an outside force by means of a simple structure. A locking slot (10b) is arranged on a side wall in a sill slot (10a). A hook fitting (13) with an L-shaped section is installed on the lower end portion of the door plate (4). The hook fitting (13) is locked with the locking slot (10b) so as to limit the door plate (4) to move upwards. The hook fitting (13) has a vertical installing portion (13a) and a locking portion (13b) which is produced by bending the lower end portion of the installing portion (13a) to a right angle. The locking portion (13b) is horizontally projected from the installing portion (13a) and is inserted into the locking slot (10b).

The invention belongs to the technical field of macromolecular polymer based composite materials, particularly relates to a carbon nano tube (CNT)/polylactic acid (PLA) composite material and a preparation method thereof. The method is characterized in that a plasticizer is added in the traditional melt blending process, therefore, the affinity of carbon nano tubes with a PLA matrix can be improved and a CNT percolation network can be formed in the PLA. The preparation process is very simple and the preparation cost is lower. The molecular motion of the PLA is limited to a certain extent by the formation of the percolation network, therefore, the composite material shows an approximately solid elastic behavior; and the carbon nano tubes can disperse in the PLA matrix very well, therefore, a solid foundation is laid for improving the properties of the PLA.

The invention discloses a high-thermal-conductivity graphene heat dissipation film, which is prepared from the following raw materials in parts by weight: 20-30 parts of styrene acrylic resin, 20-25 parts of thermal-conductive composite filler, 30-40 parts of modified epoxy resin, 1-5 parts of curing agent, 1 part of defoaming agent and 2 parts of curing accelerator. The invention further discloses a preparation method of the high-thermal-conductivity graphene heat dissipation film. The styrene acrylic resin has excellent heat resistance, water resistance, solvent resistance, wear resistance and scratch resistance, and the modified epoxy resin has strong toughness, impact resistance and flame retardancy due to the addition of polyurethane. The heat conduction composite filler endows the heat dissipation film with high heat conduction capability, heat dissipation performance, wear resistance and scratch resistance, the reasonable combination of the boron nitride nanoparticles and the graphene oxide overcomes the defects of a single heat conduction filler, the mutual synergistic effect of the boron nitride nanoparticles and the graphene oxide is exerted, and a heat conduction path or a heat conduction network can be formed. Therefore, the heat-conducting property and other physical properties of the composite material are greatly improved.

The invention provides a constrained structure of vehicle slide-door, capable of making the slide-door slide on the fore and aft direction of the vehicle to open and close the vehicle door opening at the side surface of the vehicle-body, wherein a latch lock is set on the vehicle-body side vertical wall surface facing the vehicle door opening and the latch lock is of U shape, observed from one side of the vehicle-body side surface; an insertion hole is set on the side vertical wall surface of the slide-door and the latch lock is inserted into the insertion hole when the slide door is closed; and a pair of notch parts capable of being jogged with the latch lock at a cabinet side of the insertion hole, when the load is applied on the slide-door from the cabinet side towards the outside of the cabinet, the latch lock is partly jogged with the notch parts by the insertion hole. Thus, even though it is difficult to ensure the space, when the load is applied on the slide-door towards the outside of the cabinet, the slide-door is constrained to effectively constrain the movement of the slide-door without prejudice to normal opening and closing operation of the slide-door.

The present invention provides a body fluid treatment article wherein twisting while being worn can be inhibited, and a method for manufacturing the same. A panty liner (1) comprises: inner and outer surface sheets (2, 3); a fluid-absorption interlining (4) located between the inner and outer surface sheets (2, 3); and a leakproof sheet (5) with which the outer surface sheet (3) is covered. A fiber nonwoven fabric containing thermoplastic synthetic resin is used as the inner and outer surface sheets (2, 3), and fluff pulp is used as the interlining (4). On the inner surface sheet (2) are formed a plurality of compressed grooves (7) toward the outer surface sheet (3) in a manner that the compressed grooves (7) form a grid pattern by extending so as to cross one another respectively in the lengthwise direction (Y) and the crosswise direction (X). The compressed grooves (7) comprise a first portion formed from the inner surface sheet (2) toward the interlining (4) and second portions each provided with a bottom and formed from the lower part of the first portion toward the outer surface sheet (3) in such a manner that the interval between both of the lateral sides is reduced gradually. At the bottoms of the second portions, at least parts of the fibers forming the inner surface sheet (2) and the fibers forming the outer surface sheet (3) are in contact with each other and welded.

A free ball bearing (110) comprises a support ball-pressing ring (50) disposed within a housing (30), and the support ball-pressing ring (50) is configured in such a manner that, in order to restrict or suppress the rolling of support balls (41,..., 41) arranged on a hemispherical recessed surface (21) or in order to release the restriction or suppression, the support ball-pressing ring (50) can move from a position (pressing position) at which the rolling of the support balls (41,..., 41) is restricted or suppressed, to a position (standby position) at which the restriction or suppression of the rolling of the support balls (41,..., 41) is released. The support ball-pressing ring (50) comprises a cylindrical pressing section (55) which, as the support ball-pressing ring (50) moves, can enter and exit the space between the hemispherical recessed surface (21) and a main ball (42) (said space being the space in which the support balls (41,..., 41) are arranged). When the support ball-pressing ring (50) is located at the pressing position, the pressing section (55) restricts or suppresses the rolling of the support balls (41,..., 41), and when the support ball-pressing ring (50) is located at the standby position, the restriction or suppression of the support balls (41,..., 41) is released.