13 results about "Thickened fluids" patented technology

This application relates to the field of medical device technology and discloses a T-tube fixation and care device after biliary tract surgery, including a base, a fixation cylinder, a movable magnetic ring, a corrugated sleeve, a clamping mechanism, and an anti-rotation locking assembly. The base has a medical hydrogel at its bottom, a central opening for a pipeline hole, and a lateral opening for connecting the pipeline hole. The base has an internal cavity for accommodating a shear-thickening fluid, and several sets of grids are fixedly connected within the cavity. The fixation cylinder is fixedly connected to the top of the base, and its side wall has an adapter opening corresponding to the lateral opening. A fixing magnetic ring is fixedly installed at the bottom of the inner wall of the fixation cylinder. The shear-thickening fluid grids harden under sudden tensile force, forming rigid protection. This, combined with the magnetic repulsion between the movable and fixed magnetic rings, provides vertical buffering. Simultaneously, a ring array of clamping blades evenly grips the pipeline, and the lateral opening allows for quick and uninterrupted installation of the drainage tube.

The application discloses a kind of active and passive synergic magnetorheological shear thickening fluid damper, including damper shell, the inner wall of the damper shell is slidably connected with piston, the outer periphery of the piston is integrated with adaptive cooperative sleeve, adaptive cooperative sleeve includes: one with excitation coil electrical connection sleeve base body, the base body has magnetism and conductivity;The outer wall of the sleeve base body is structured with multiple adaptive flow channel units extending along the axial direction, circumferentially spaced arrangement, the adaptive flow channel unit is formed by recess on the base body and the elastic filler body filled in the recess;The application belongs to damper technical field, reaches the technical effect for: by integrating conductive metal sleeve, rib and shell ring belt, and optimizing the wedge-shaped geometry of recess and block, the depth of synergic of multiple physical field energy dissipation mechanism is realized;When piston moves, rib and ring belt cut magnetic induction line and generate eddy current damping, provide a linearly related, wear-free additional passive energy dissipation with speed.

The utility model discloses a sofa dust cover with an elastic band, comprising: a cover body, a joint groove formed between a sofa seat surface and a backrest part; the bag is fixedly connected to the portion, corresponding to the joint groove, of the cover body, non-Newtonian fluid is packaged in the bag, and the non-Newtonian fluid is configured to be changed in rheological property when subjected to shear force; the magnetic attraction assembly is embedded in the joint groove and is in magnetic attraction fit with the bag; the limiting strip is arranged on the edge of the opening of the joint groove; two ends of the elastic piece are respectively connected with the bag and the mask body; when the cover body is displaced under the action of external force, the elastic piece is stretched and transmits tensile force to the bag; the bag is in extrusion contact with the limiting strip under the action of pulling force, so that the non-Newtonian fluid generates a shear thickening effect; and the bag is anchored in the joint groove due to the increase of the viscosity of the fluid, so that displacement resistance is formed. Through cooperation of the non-Newtonian fluid and other structures, the shear thickening fluid is rapidly thickened by external force to form an anchoring effect, displacement is stopped immediately, fluidity is recovered after the external force is removed, and use is not affected.

The invention provides a non-Newtonian fluid energy-absorbing device and a hydraulic support for resisting rock burst, the non-Newtonian fluid energy-absorbing device comprises an energy-absorbing container and a container bottom plate, the energy-absorbing container is a closed container filled with shear thickening fluid and made of a plastic material, the energy-absorbing container is mounted on the container bottom plate, and the shear thickening fluid is filled with shear thickening fluid. The energy absorption container comprises a cylindrical section body, and the container bottom plate is used for supporting the cylindrical section body on the top of a hydraulic support so that the cylindrical section body can abut against a top plate needing to be supported. A honeycomb core is arranged in the cylindrical section main body, the honeycomb core comprises an elastic ring, a ring cavity of the elastic ring is full of honeycomb structures, and the honeycomb structures are used for disturbing the shear thickening fluid. Through the composite energy absorption and compression resistance structure of the cylindrical section body, the honeycomb core and the shear thickening fluid, the overall rigidity of the energy absorption container is enhanced, and meanwhile the energy absorption container has the efficient buffering and energy absorption performance.

The active and passive synergistic magnetorheological shear thickening fluid damper comprises a damper shell, the inner wall of the damper shell is slidably connected with a piston, the periphery of the piston is integrated with a self-adaptive synergistic sleeve, the self-adaptive synergistic sleeve comprises a sleeve-shaped base body electrically connected with an exciting coil, the base body has both magnetic conductivity and electrical conductivity, and the base body is provided with a magnetic core and a magnetic core; a plurality of self-adaptive flow channel units which extend in the axial direction and are arranged at intervals in the circumferential direction are constructed on the outer wall of the sleeve-shaped base body, and each self-adaptive flow channel unit is composed of a concave part formed in the base body and an elastic filling body filled in the concave part; the invention belongs to the technical field of dampers, and achieves the technical effects that by integrating the conductive metal sleeve, the ribs and the shell ring belt and optimizing the wedge geometry of the groove and the sealing block, deep collaboration of a multi-physical field energy consumption mechanism is achieved; when the piston moves, the ribs and the annular belt cut magnetic induction lines to generate eddy current damping, and additional passive energy consumption which is linearly related to the speed and free of abrasion is provided.

Systems and methods for treating a fluid comprising a particulate portion and a soluble portion include feeding the fluid into a hydrothermal treatment apparatus and subjecting the fluid to heating to a temperature of 121°C or higher to obtain a treated fluid, subsequently feeding the hydrothermally treated fluid into a vacuum integrated reactor, wherein at least the particulate portion undergoes fermentation or digestion, during fermentation or digestion, subjecting the fluid in the vacuum integrated reactor to vacuum pressure, and collecting at least a portion of the soluble portion of the fluid as condensate from the vacuum integrated reactor, thereby thickening the remaining portion of the fluid, and recovering the thickened fluid from the vacuum integrated reactor. The vacuum may also be applied upstream or downstream of a non-vacuum integrated reactor and separate from the non-vacuum integrated reactor.

The application discloses a self-adaptive intelligent transformer grounding device for uneven ground, which comprises a connecting column, an insulating sleeve, a liquid storage pipe, a plurality of rotating frames, a torsional spring, a limiting frame, a plugging assembly and a stabilizing assembly. The outer periphery of the liquid storage pipe is compounded with a shear thickening fluid bag body layer, and the inside is filled with an electric field responsive electrorheological fluid; the plugging assembly comprises a guide column and a first spring, a direct current electric field can be applied between the guide column and the connecting column to make the electrorheological fluid change from a liquid phase to a solid phase; the rotating frames are circumferentially distributed, are not connected with each other and have independent rotating axes, and the limiting frame is removed to make each rotating frame independently expand and adhere to the hole wall under the driving of the torsional spring. Through the triple synergistic mechanism of shear thickening impact hardening, electric field regulation of electrorheological fluid and mechanical structure multi-point decoupling, dynamic reversible adjustment of grounding impedance and full-scale hole wall self-adaptive adhesion are realized.

The invention relates to personal protection equipment, and discloses an intelligent buffering body armor based on a micro air bag and shear thickening fluid composite structure, which comprises an outer-layer bulletproof fabric, a middle functional layer and an inner-layer buffering cushion, the middle functional layer comprises a plurality of sealed micro air bags, each micro air bag is filled with shear thickening fluid, a small amount of inert gas space is optionally reserved, and when shock waves are transmitted to the middle functional layer, the shear thickening fluid in the micro air bags is instantly thickened at an extremely high shear rate; the fiber network around the micro air bag is locked to form a local rigid supporting area, and excessive sinking of the bulletproof layer is restrained; the middle functional layer achieves the effects of microsecond-level thickening locking, millisecond-level compression damping and extreme impact controllable cracking through the synergistic effect of the shear thickening fluid and the micro air bag, so that the impact force is dispersed in an extremely short time, the back concave depth of the body armor is greatly reduced, and the blunt injury risk of people is reduced.

The application discloses a kind of fabric permeation prevention coating devices, it is related to coating device technical field.The technical solution points are as follows: including machine body, the machine body includes supply module, coating module, damping module and drive module, the supply module inside storage and delivery have thickening fluid, the thickening fluid is calculated according to weight fraction, including 40-60 parts of base film-forming resin, 15-30 parts of thickening functional particle, 1-5 parts of rheological auxiliary agent, 20-40 parts of solvent, the thickening functional particle is set as the particle size of 10-500nm fumed silica, the surface of the thickening functional particle is modified by silane coupling agent processing, the viscosity of thickening fluid is increased to form physical blockage by the setting of vibration assembly, and penetration continues to be prevented.

The application relates to a shear thickening fluid damper, which belongs to the technical field of dampers. The shear thickening fluid damper comprises an inner cylinder, an outer cylinder, a piston rod, a one-way valve and a moving suction device. The inner cylinder is arranged in the outer cylinder. The one-way valve is arranged between the outer periphery of the bottom of the inner cylinder and the outer cylinder. The upper part of the one-way valve is filled with nitrogen or shear thickening fluid, and the lower part of the one-way valve is filled with shear thickening fluid. The inner cylinder is filled with silicon oil. The piston rod is a double-rod type or a single-rod type. The piston is arranged in the inner cylinder. The piston rod is arranged to extend out of the inner cylinder and the outer cylinder at two ends or one end. The piston rod moves up and down in the inner cylinder. The moving suction device is symmetrically arranged in the inner cylinder at two ends of the piston rod. When the external load is small, the moving suction device connects the inner cylinder and the outer cylinder as a whole. The piston rod moves in the inner cylinder. The silicon oil is extruded and sheared to absorb energy. When the load is too large, the moving suction device separates the inner cylinder and the outer cylinder. The inner cylinder is driven to move downwards by the piston rod. The shear thickening fluid in the lower cavity of the outer sleeve is extruded and sheared to be shear thickened, so that energy is dissipated.

Composite materials incorporated with shear thickening fluids (STF) are disclosed. The STF-composites are light weight and include high tenacity textiles that dissipate / absorb energy from impact forces and exhibit damage resistance and self-healing functionality. Also disclosed are articles comprising STF-composite materials, such as safety suits and extra-vehicular mobility units, which include STF-intercalated textiles and composites. Methods for Manufacturing STF-composites are also disclosed.

The invention discloses a single-soldier flexible tactical skin with multi-spectrum stealth and dynamic impact resistance functions and a preparation method thereof, and belongs to the technical field of special protective equipment. The individual soldier flexible tactical skin comprises a fiber fabric matrix impregnated with a shear thickening fluid, wherein the shear thickening fluid comprises a liquid dispersion medium, hard dispersion phase particles, electromagnetic loss type dispersion phase particles and polylysine. During preparation, the polylysine is used as a bridge structure, and the electromagnetic loss type functional filler, the hard dispersed phase nanoparticles and the liquid dispersion medium are uniformly mixed under high-speed stirring and ultrasonic assistance to obtain the functionalized shear thickening fluid. The contradiction among light weight, comfort and multifunctional protection of traditional individual soldier protection equipment is effectively solved, and endogenous fusion of the dynamic impact resistance function and the efficient electromagnetic stealth function is successfully achieved in a single flexible material system.

The utility model relates to a knee-joint-imitating anti-impact structure based on shear thickening fluid, and belongs to the technical field of buffering and energy absorption. The structure comprises a main body block body, a soft shell cavity and shear thickening liquid, the shear thickening fluid is sealed in the soft shell cavity, and the soft shell cavity is assembled and filled into the main body block; the main body block body is formed by connecting an upper block body, a lower block body and a thin-wall connecting curved beam and is integrally manufactured by a 3D printing technology; the bottom surfaces of the upper block body and the lower block body are square; the inner side interfaces of the upper block body and the lower block body are formed by stretching a cosine function curve of one cycle along the direction vertical to the paper surface; and the internal interface of the thin-wall connecting curved beam is formed by stretching a cosine function curve of one period along the direction vertical to the paper surface. The special rigidity characteristic of the knee joint structure is utilized, the shear thickening fluid is flexibly packaged, a deformation area is expanded, excellent impact resistance is achieved, and the knee joint structure has the advantages of being light in weight, controllable in size and easy to assemble.