11results about How to "Contact safety" patented technology

The pneumatic soft robot comprises a front air bag, a corrugated pipe and a rear air bag which are sequentially and coaxially connected, the front air bag, the corrugated pipe and the rear air bag are all provided with independent ventilation air paths, and the front air bag and the rear air bag can achieve radial volume expansion by means of inflation. Therefore, anchoring in the small intestine is achieved, and the corrugated pipe can stretch out and draw back in the axial direction by means of air inflation. Different from a previous intestinal tract detection pneumatic robot, the core idea of the invention is that the small intestine is dragged by using the pneumatic robot, the robot does not need to crawl in the small intestine, a traditional enteroscope outer sleeve operation mode can be replaced, and medical personnel can conveniently carry out related detection.

The present invention discloses a proportional valve for a ventilator, which relates to the field of fluid control. The valve comprises a valve body, a valve core and a driving assembly, wherein the valve body is provided with an air inlet, an air outlet and a cavity connecting the air inlet and the air outlet, and is characterized in that the valve core has no direct contact with the valve body, an elastic sheet is provided between the outer wall of the valve core and the inner wall of the valve body, the elastic sheet divides the cavity into a first cavity and a second cavity which are not connected to each other, the second cavity is connected with the air inlet and the air outlet, the elastic sheet can hold the valve core against the inner wall of the valve body to cover the air inlet, the driving assembly can drive the valve core away from the inner wall of the valve body to connect the air inlet and the air outlet, and an air pipe connecting the air inlet and the first cavity is provided inside the valve core. The valve core in the proportional valve has no direct contact with the valve body, the friction generated by the proportional valve during operation is reduced, and the control of the gas flow is more precise and linear.

The invention relates to a vibration reduction supporting device for machining a magnesium-aluminum light alloy thin-wall cylindrical part and a machining method. The vibration reduction supporting device comprises a center support, a plurality of air bag support sets and an inflation air bag. A plurality of threaded through holes are evenly distributed in the center support in the circumferential direction. The air bag support sets are of assembly structures with the width of outer end clamping openings adjustable, the inner ends of the multiple air bag support sets are fixedly connected with the outer ends of support lead screws in a relative angle adjustable mode respectively, and the inner ends of the multiple support lead screws are connected with the multiple threaded through holes in the center support in a one-to-one mode. The inflatable air bag is clamped at the outer end clamping openings of the multiple air bag support sets, and the outer surface of the inflatable air bag is an elastic supporting face making contact with the inner wall of the part. The machining vibration reduction device achieves a good machining vibration reduction effect and has good applicability.

The application relates to a processing method of a momentum wheel thin-wall sealing cover, which comprises the following steps: 1, rough machining is performed on the outer circular sidewall of a part blank, a process handle and a process handle sidewall; 2, a self-adaptive sidewall damping tool is installed on a general hydraulic chuck, the process handle end of the part is clamped, and the right end of the part is in elastic contact with the self-adaptive sidewall damping tool; a self-adaptive circular damping tool is sleeved on the outer circle of the part; the inner hole of the part is precisely machined; 3, the self-adaptive circular damping tool is removed, a gas bag part of a gas bag auxiliary support is inserted into the inner hole of the part, and the gas bag is inflated to be in contact with the inner hole wall of the part; then the center position of the right end rigid part of the gas bag auxiliary support is pressed by a built-in tail center of a machine tool tailstock; the outer circle of the part is precisely machined to the design size; 4, the outer circular sidewall of the part is precisely machined, and the process handle is removed. The application can realize a better machining damping effect.

The present invention relates to a food packaging material, to a method for producing a food packaging material and to the use thereof. The food packaging material of the present invention comprises (i) a paper substrate having a first side and a second side, the second side being opposite the first side wherein the paper substrate is impregnated with a composition comprising a grease barrier precursor, and (ii) a barrier layer coated onto at least the first side of the impregnated paper substrate, the barrier layer comprises a polymer wherein the total amount of perfluoroalkyl species and polyfluoroalkyl species in the packaging material does not exceed 20 ppm based on the total weight of the packaging material.

The utility model discloses a rotary type RGV trolley, which belongs to the technical field of warehouse logistics and comprises a track, an RGV trolley body is arranged on the track in a sliding mode, a sliding contact line is arranged on one side of the track, a gear rack and a rotary disc which are matched with each other to drive the RGV trolley body to steer are arranged in the track, and a current collection arm is arranged on one side of the RGV trolley body. One side of the track is provided with a rotary driving gear motor for driving the rotary disc; according to the utility model, the rotation height as low as possible is realized through the rack and gear rotation support, pit digging is avoided, the space utilization rate is effectively improved, and the eight-wheel track weighing running is stable; according to the utility model, linear driving in the midway can be realized to rotate and change lanes in situ, the track can be used for lane-changing driving and can also be used for lane-changing entry into a maintenance station, the rotating platform in the midway of the track can enable operators to safely contact goods, the maintenance is also convenient, the track can be used for lane-changing driving in the midway and can also be used for rotating in the midway to enter the maintenance station, and the handling capacity is further improved.

This invention relates to the field of drinking water packaging container technology, specifically to a plastic-free paper water bottle and its preparation method, comprising: a bottle body formed from food-grade plant fibers; a bio-based waterproof barrier layer coated on the inner surface of the bottle body, wherein the barrier layer does not contain petroleum-based plastics; and a plastic-free bottle neck structure integrally formed or hot-pressed with the bottle body. The invention features a completely plastic-free material system: all components are made of plant fibers and bio-based materials, containing no petroleum-based plastics and capable of complete composting degradation; a food-grade bio-based waterproof coating: using chitosan, starch, natural wax, etc., as main raw materials, achieving waterproofing, seepage prevention, and food contact safety; and an integrally formed paper bottle structure, which can use a hot-pressed all-paper cap, a food-grade paper cap, or a sugarcane fiber cap instead of a plastic cap.

This invention relates to a food packaging material and a method for manufacturing the food packaging material. The food packaging material of this invention comprises a paper substrate having a first side and a second side, the second side being opposite to the first side, wherein the paper substrate is coated with a coating on at least the first side or the second side, the coating comprising wax and a copolymer selected from styrene-butadiene copolymers and / or styrene-acrylic copolymers.

The utility model belongs to the technical field of biochemical analyzers, in particular to a cleaning device of a full-automatic biochemical analyzer, which comprises a lifting plate capable of freely moving along the vertical direction, a cleaning needle, a rotating disc, a moving block, a power mechanism and a manual bolt, a round hole is formed in the lifting plate, the rotating disc is rotationally installed in the round hole, the power mechanism is fixed to the lifting plate and used for driving the rotating disc to rotate back and forth in the horizontal plane, and a kidney-shaped hole is formed in the rotating disc. The power mechanism is arranged to drive the rotating disc to rotate back and forth in the horizontal plane, the cleaning needle is eccentrically arranged and adjustable in position to adapt to the reaction cups with different diameters, meanwhile, it is guaranteed that the sponge lining reliably makes contact with the inner walls of the reaction cups, and the cleaning efficiency is improved; by arranging the balance spring, the cleaning needle can move by a certain distance in the vertical direction, it is guaranteed that the cleaning needle can make contact with the inner bottom face of the reaction cup more safely, and cleaning is more sufficient.

The utility model discloses a protective structure for a log splitter, which comprises a protective assembly, and the left end of the protective assembly is connected with a log splitting assembly; according to the technical scheme, the protective assembly comprises a protective plate and a protective frame, the protective assembly and the protective metal net are arranged, so that wood chips generated during wood splitting can be prevented from splashing, and when the wood chips on the surface of the protective metal net need to be cleaned, a hand wheel is rotated to drive a lead screw to rotate, so that the wood chips on the surface of the protective metal net can be cleaned; according to the wood splitting machine, the screw rod is driven to rotate, so that the adaptive nut, the connecting plate, the connecting block and the cleaning scraping plate are driven to reciprocate along the screw rod, wood chips on the surface of the protective metal net can be scraped off through the cleaning scraping plate, hands do not need to be in direct contact with the wood chips, and the wood splitting machine is safer and is used for solving the problem that when the net-shaped protective cover is used for protecting chippings generated by the wood splitting machine, the chippings cannot be damaged. The problem that small wood chips may be attached to the surface of a net-shaped protective cover, and if the wood chips are directly cleaned by hands or cleaned by holding cleaning cloth by hands, the wood chips may scratch palms is solved.

The utility model relates to the field of cub breeding, in particular to a cub adapting box for animal husbandry breeding. The technical problem of the utility model is to provide the cub adapting box for animal husbandry breeding, which can be convenient for cubs to quickly adapt to the outside. According to the technical scheme, the cub adaptation box for animal husbandry breeding comprises an adaptation box body, a covering plate, an adaptation mechanism and a disinfection assembly, a plurality of ventilation openings are evenly formed in the left side and the right side of the adaptation box body, the covering plate is rotationally connected to the left front portion of the adaptation box body, the adaptation mechanism is arranged on the adaptation box body, and the disinfection assembly is arranged on the front portion of a baffle. The baffle is controlled by the motor to move backwards slowly without shielding the ventilation opening, so that sunlight and air enter the adaptation box through the ventilation opening, and cubs can adapt to the external environment more quickly.