1383results 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 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 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.

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 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 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.