425results about How to "Play a restrictive role" patented technology

The invention discloses a fan device and a breathing machine with the same. The fan device comprises a shell, a fan vibration source and a buffer assembly, wherein the fan vibration source is arranged in the shell, the buffer assembly is used for enabling the fan vibration source to be connected with the shell, and the buffer assembly comprises at least two of a positioning buffer component connected with the top of the fan vibration source, a connecting buffer component which at least partly contains the fan vibration source, and a supporting buffer component which is connected with the bottom of the fan vibration source. The fan device can effectively buffer vibration of a fan and reduce and lower noise transmission and is simple in structure.

The invention provides a synthesis method for preparing a carbon-coated CoTiO3 nanocrystalline material through MOF derivation. The synthesis method mainly comprises the steps of dissolving CoCl2.6H2Oand a ligand (trimesic acid, 2-methylimidazole or terephthalic acid) into a solvent (N,N-dimethylformamide, anhydrous methanol or anhydrous ethanol) and preparing cobalt-based MOF by using a Teflon reactor and a solvothermal method; dispersing the cobalt-based MOF into an anhydrous methanol solution, adding the anhydrous methanol solution of butyl titanate, and carrying out the solvothermal method once again to compound titanium oxide on the cobalt-based MOF to obtain a precursor; and finally carrying out alloying reaction in a closed manner by using a special stainless steel kettle under protective atmosphere and generating the carbon-coated CoTiO3 nanocrystalline material. The synthesis method is low in synthesis cost, mild in reaction condition and high in repeatability; the prepared nanocrystalline material is small in particle size, carbon coating on CoTiO3 nanocrystalline is uniform and the prepared carbon-coated CoTiO3 nanocrystalline material is good in electrochemical properties.

The invention provides a high-rise building large-screen advertising board, and relates to the field of advertising boards. A support plate is fixedly connected to the surface of a base, an advertising frame is fixedly connected to the surface of the support plate through electro-welding, smooth transparent glass is embedded in the surface of the advertising frame, an inner ring plate is welded tothe surface of the advertising frame, a connection rod is welded to the surface of the support plate, an outer ring plate is fixedly connected to the surface of the connection rod, an annular slidingrail is arranged between the inner ring plate and the outer ring plate, and wheel grooves are formed in the inner wall of the outer ring plate and the surface of the inner ring plate. By adopting thehigh-rise building large-screen advertising board, static electricity is generated totally depending on wind drive, under the effect of the static electricity, dust nearby the advertising board is gathered and removed, the effect is achieved that the dust is removed without manpower and power consumption, and therefore the problems are solved that current high-rise advertising board are not convenient to clean, large potential safety hazards exist during manual cleaning, the cost is high, and mechanical cleaning not only consumes much energy but also cannot be conducted in time.

The invention discloses an auxiliary device of a medical ultrasonic imager, which comprises an ultrasonic imager, a device body, a probe cleaning mechanism, a drying box, an ultrasonic probe, a power line, a line arrangement mechanism and a coupling agent filling mechanism. The device body is assembled on the outer side wall of the ultrasonic imager, the probe cleaning mechanism is arranged in the device body. The drying box is arranged at the bottom end of the probe cleaning mechanism and communicated with the probe cleaning mechanism, the ultrasonic probe is electrically connected with the ultrasonic imaging instrument through a power line and assembled in the probe cleaning mechanism, and the line arranging mechanism is arranged on the side, away from the ultrasonic imaging instrument, of the probe cleaning mechanism. The end, away from the ultrasonic probe, of the power line penetrates into the line arranging mechanism and extends, and the coupling agent filling mechanism is assembled at the end, away from the power line, of the ultrasonic probe.

The invention relates to an airtight dual-power roller blind sealing cap which originates from the demand for an airtight sealing cap of a construction truck compartment. The main body of the airtight dual-power roller blind sealing cap comprises a roller blind barrel, a left [-shaped guide rail and a right [-shaped guide rail, wherein the roller blind barrel is installed on the front side of the compartment, the left [-shaped guide rail and the right [-shaped guide rail are fixed to the upper ends of the two sides of the compartment respectively, and a rolling mechanism is arranged in the roller blind barrel. A roller blind body can be made of waterproof cloth or a metal roller blind or engineering plastic so as to meet special demands. One end of the roller blind body is connected with the rolling mechanism, and the other end of the roller blind body is connected with a horizontal pushing frame erected between the left [-shaped guide rail and the right [-shaped guide rail. The horizontal pushing frame is connected with a power mechanism and a motion mechanism. The compartment is sealed in the way that the horizontal pushing frame is driven by the power mechanism to drive the roller blind body to move between the left [-shaped guide rail and the right [-shaped guide rail towards the rear side of the compartment, and the sealing cap can be opened in the way that the rolling mechanism drives the roller blind body and the horizontal pushing frame to rewind between the left [-shaped guide rail and the right [-shaped guide rail. The airtight dual-power roller blind sealing cap is simple in structure, light, easy to operate, complete in airtightness, easy to maintain, safe, reliable, stable in unwinding and winding operation, free of raised dust and dust leakage in the using process, and capable of limiting the overloading behavior and the limit exceeding behavior to some extent.

The invention relates to an airbag type shock-absorbing pad frame, which is arranged between the container of a container trailer and the frame of the trailer, including: an upper pad frame, on which the container is installed; a lower pad frame, which is installed on the On the trailer frame; a plurality of air bags, which are arranged between the upper pad frame and the lower pad frame, and connect the upper pad frame and the lower pad frame; and pipelines, which communicate with the air source and the plurality of between the airbags, and introduce the gas in the gas source into the plurality of airbags. The airbag type shock-absorbing pad frame effectively relieves the vibration of the container through the air bag arranged between the upper pad frame and the lower pad frame, and protects the goods in the container from being damaged.

The invention discloses a shaking device for preparing embolization microspheres capable of loading drugs. The shaking device comprises a shell and is characterized in that a placing groove is arranged inside the shell, two vertically arranged fixed rods are fixedly connected to the inner wall of the placing groove, a mounting groove is formed in the lower end of each fixed rod, a telescopic rod is inserted into each mounting groove, a spring is fixedly connected between each telescopic rod and the corresponding fixed rod, one ends, close to each other, of the telescopic rods are provided withvertical slide grooves, a connecting rod is inserted into each slide groove, one ends, close to each other, of the connecting rods are connected with sleeves, a placing tube is arranged in each sleeve, an iron block is connected to the lower end of each telescopic rod, electromagnets are fixedly connected to the inner walls of the placing groove and connected with the iron blocks in a matched manner, a motor is fixedly mounted at the bottom end of inner wall of the shell, a rotary disc is fixedly mounted at the output end of the motor, and the rotary disc is located below the placing tubes. When the shaking device is used, intermittent shaking can be achieved conveniently, and operation convenience and simpleness are achieved.

The invention relates to a fixture for unloading of a two-rigid one-flexible true triaxial tester and an assembly method of the fixture. The fixture comprises four press blocks, wherein the four pressblocks are respectively a first press block, a second press block, a third press block and a fourth press block, position control posts are arranged in grooves of the first press block, the second press block, the third press block and the fourth press block, the grooves of the first press block, the second press block, the third press block and the fourth press block are connected in an end-to-end way to form a square groove, a limitation baffle plate is arranged in the limitation baffle plate, and four surfaces of the limitation baffle plate is attached onto a surface of the control post. By the fixture, the defect of the fixture of the two-rigid one-flexible true triaxial tester in unloading experiment is made up, single-surface unloading can be achieved when the fixture is used for performing unloading experiment in a single direction, the limitation baffle plate can have a certain limitation constraint effect on a rock sample on the other surface corresponding to the limitation baffle plate, so that the damage behavior of the rock during the unloading experiment process can be more widely researched, and possibility is also provided for researching unloading destruction disaster of an engineering site.

The present invention pertains to foam cushion backings. More particularly, the present invention pertains to foam cushion backings suitable for use in carpets and carpet tile products. The present invention further pertains to foam cushion-backed carpet and carpet tile products. The present invention further pertains to methods of making such foam cushion backings and carpet and carpet tiles as described herein.