31results about How to "Can't fall off" patented technology

The invention discloses a preparation method for a high flux solvent-resisting organic/inorganic hybridized compound film doped with aminated graphene quantum dot, a prepared compound film and an application of the film. The preparation method for the compound film comprises the steps of interfacial polymerization reaction, chemical crosslinking and solvent activation. According to the invention, the aminated graphene quantum dot is added into an interfacial polymerization monomer solution, so that the separating property and solvent resistance of the film are obviously promoted; the film-making time is shortened in the manner of increasing the cross-linking and solvent activating time; a large quantity of amino groups are loaded on the surface of the aminated quantum dot and can react with an organic phase monomer so as to form a firm covalent bond, so that the performance of the film is promoted while the stability of the quantum dot in the film is obviously promoted. According to the invention, the preparation process is simple and the film has wide application prospect in the fields of organic solution system separation and organic solvent-containing water treatment.

The compound Chinese medicinal stone consists of sintered carrier of natural Chinese medicinal stone powder and reduce iron powder in the ratio of 100 to 5-40 and photosensitive catalyst film carrieronto the surface and of TiO2 and Ag, Cu, Pt or Pd in the weight ratio of 100 to 0.5-3. It is prepared through mixing natural Chinese medicinal stone powder and reducing iron powder as well as adhesive, sintering and cooling to obtain sintered carrier, and depositing the photosensitive catalyst film. The compound Chinese medicinal stone in different shapes may be used to degrading and adsorbing metal ions, organic matter and germ in purity water and in health care and may be recovered for reuse.

A refrigeration device comprises a built-in unit, especially a pull-out drawer (4), which is guided on telescopic pull-out elements (5) so that it can be pulled out from an interior space (3). Every telescopic pull-out element (5) comprises at least one rail which is stationary (9) in the interior space (3), a rail (12) which can be displaced together with the built-in unit (4) in a depth direction of the interior space (3) and a cover part (13) extending along the mobile rail (12). At least one first cover part (13) and the built-in unit (4) have contours (16, 28) which are complementary to each other and engage with each other in a form-locking connection in a width direction of the interior space (3).

The invention discloses a sintering method for improving the mechanical strength of a tantalum wire, which comprises the following steps of: taking the metal which is lower in melting point and is easy to have a reaction with water or acid by itself or oxide of the metal as deoxidant, and jointing sintering with the pressed tantalum wire under the vacuum state, so that the oxidized part of the tantalum wire is deoxidized, and continuously heating under the vacuum state to sinter the tantalum wire and crystallize the tantalum wire after the deoxygenation is completed, so that the mechanical strength of the tantalum wire can be improved. The specific technical scheme of the sintering method comprises the following steps of: firstly putting the metal deoxidant and a container which is to be filled with the tantalum wire to be sintered such as a tantalum crucible into a vacuum film plating device, heating under the vacuum state, so that the metal deoxidant is evaporated, and forming a layer of metal film on the surface of the container filled with the tantalum wire by the metal deoxidant after cooling; and putting the tantalum wire into a film-plated container to be sintered in the vacuum sintering furnace.

The invention discloses an anti-falling bottle opening structure. The structure comprises a bottle mass; the bottle mass comprises a bottle body and a bottle lid; the bottle body is provided with a bottle opening, a bottle neck and a rhombic connecting part; the bottle opening is connected with a sleeve cover; an arc projection is arranged on the outer side of the bottle opening; the bottle lid isprovided with a first circular through hole; a pressing head is connected to the first circular through hole; and multiple convex pins and multiple clamping projections are arranged on the inner wallof the bottle lid. The sleeve cover is provided with a circular groove; an anti-falling stop part is arranged on the inner wall of the circular groove, and is clamped with a circular projection; multiple U-shaped gaps are formed in the circular groove; a triangular projection, approaching the circular groove and gradually reduced, is arranged on the inner wall of the sleeve cover; the sleeve cover is provided with a transverse projection in the diagonal direction; the circular projection is arranged on the sleeve cover; and the circular projection is provided with a second circular through hole and an arc gap groove. The structure is reasonable in structure and simple in assembly, and prevents falling of the sleeve cover from the bottle opening.

The invention relates to a dustproof safety valve, wherein a sleeve is in interference assembly with a conical valve seat, a precision filter net and a coarse filter net are fixed on the end surface of the sleeve and are arranged inside the conical valve seat together with the sleeve, and the center of the precision filter net and the center of the coarse filter net are positioned on a central line of a hole in the conical valve seat. According to the dustproof safety valve, two layers of filter nets are arranged at the front end of a small hole which is 1mm in diameter, wherein the first layer of precision filter net is used for preventing the hole which is 1mm in diameter from being blocked by particulate matters, and the second layer of coarse filter net mainly plays a support role so as to ensure that the filter net cannot deform and fall off under the action of oil pressure.

The invention relates to the field of hooks, in particular to an anti-dropping device for a hook which is convenient for installation and disassembly. Each triangular support plate of the present invention is composed of a short board and a long board, and the angle between the short board and the long board ranges from 50 degrees to 70 degrees; the bottoms of the two short boards are connected by a bayonet, and the bottoms of the two long boards pass through Pin connection; the intersection of the short and long plates of the two triangular support plates is connected by a pin. The device of the invention can effectively improve the safety of the hoisting operation, and can satisfy the long-term high-intensity use, is easy to recover after the device fails, and can effectively reduce the labor intensity of the operators.

The invention belongs to the technical field of furniture tools, and particularly relates to a door-mounted rack. The door-mounted rack comprises a bottom plate, two side plates and a hanging plate. The bottom plate, the two side plates and the hanging plate form a rack body, a plurality of mutually-paralleled erected rods are arranged between the two side plates, a hanging groove is formed in the back side of the hanging plate, a hanging rod is arranged on the hanging plate, the middle portion of the hanging rod protrudes inwards the hanging groove, a connecting piece is arranged on the hanging rod in a hanging mode, a clamping plate is arranged on the connecting piece, one end of the clamping plate is fixed on the connecting piece, a gap is reserved between the other end of the clamping plate and the connecting piece, and the clamping plate can prevent the hanging rod from being taken off from the connecting piece. The door-mounted rack is simple in structure, convenient to use and capable of being well arranged on a cabinet in a hanging mode, therefore the capacity of the cabinet is increased and more kitchen utensils can be contained in the cabinet.

Provided is a hard-sealing spherical valve suitable for a water-coal-slurry working condition. The water-coal-slurry is featured by being high in corrosivity and temperature, great in erosion and high in particle hardness. The method comprises an end cover connected with a belleville spring which is connected with a pressing ring. The pressing ring is connected with a sealing ring. The sealing ring is connected with a valve seat. The valve seat is connected with a sphere. A shaft sleeve sleeves the outside of the sphere. A pivot joint externally sleeves the shaft sleeve. Due to the fact that a sealing surface is made by metal material, required seal pressure is much higher than that of soft sealing. The structure of a combined valve seat with a spring and a valve seat is utilized. Through a high-load belleville spring, the initial preload sealing pressure is provided. The linear expansion influence of metal material at high temperature is taken into consideration. A combined design mode of serial connection of the belleville spring is utilized so that the initial prestressing force provided by the belleville spring is satisfied. The invention is applied to the hard-sealing spherical valve suitable for the water-coal-slurry working condition.

The invention relates to the technical field of medical instruments, and discloses a non-magnetic hemostatic clip used in cooperation with an endoscope, the non-magnetic hemostatic clip comprises a clamping part and a release part, the clamping part comprises two clamping pieces and a clamp tube, the two clamping pieces are arranged in the clamp tube, the release part comprises a handle, a sliding handle is arranged on the handle in a sliding mode, a mandrel is fixedly connected to the sliding handle, and the mandrel is fixedly connected with the handle. The end, away from the sliding handle, of the mandrel is fixedly connected with a connecting piece, the mandrel is sleeved with a spring hose, one end of the spring hose is fixedly connected with the handle, the other end of the spring hose is fixedly connected with a rotating piece, and the end, away from the spring hose, of the rotating piece is detachably connected with the clamp tube. One end, far away from the mandrel, of the connecting piece is detachably connected with the two clamping pieces; the clamping piece and the clamp tube are made of non-magnetic materials or non-magnetic absorbable materials. The device can be repeatedly opened and closed, is simple and reliable in structure, is convenient to release, is moderate in clamping force, is non-magnetic in a remaining body, and does not need to worry about the influence of magnetic resonance and the alarm trouble of a security check instrument.

The corrosion-resistant structure of the reinforced concrete box culvert in the saline soil area comprises a conventionally-designed reinforced concrete box culvert structure, the whole body of the reinforced concrete box culvert structure is wrapped with filament machine-woven composite geotechnical cloth (two pieces of cloth and one film), and the salt-isolating and water-blocking effects are achieved; the inner wall of the reinforced concrete structure is also in a closed environment, so that the reinforced concrete structure is effectively prevented from being permeated and corroded for a long time due to chemical reaction of the salinized soil, the problem of secondary salinization diseases of the roadbed is thoroughly solved, the construction is convenient, the manufacturing cost is low, and better economic benefits and social benefits are achieved; and the method has a wide application prospect in the fields of roads, municipal administration, airport pipelines and the like in salinized soil areas.

The invention belongs to the technical field of byproduct industrial salt treatment equipment, and particularly relates to a waste salt incineration heat preservation furnace body structure. The structure comprises a furnace body. The furnace body comprises a side wall and an upper wall. The side wall sequentially comprises an outer wall layer, a middle heat preservation layer, a partition layer and a corrosion-resistant layer from outside to inside, wherein the corrosion-resistant layer is formed by splicing refractory bricks, a plurality of clamping grooves are formed in the partition layer,a plurality of connecting blocks are connected to the clamping grooves in a sliding manner, fixing grooves are formed in the refractory bricks, connecting columns are fixed to the connecting blocks,the refractory bricks are spliced and fixed to the partition layer through the connecting columns, each refractory brick comprises a layer refractory brick body and a common refractory brick body, a sliding groove is formed in each upper-layer refractory brick body, an adjusting block capable of making contact with the upper wall of the furnace body is slidably connected to each sliding groove, the side, facing the interior of the corresponding upper-layer refractory brick body, of each adjusting block is a slope, each upper-layer refractory brick body is provided with a threaded groove whichcommunicates with the corresponding sliding groove, and the threaded grooves are in threaded connection with push rods. According to waste salt incineration heat preservation furnace body structure, the problem that refractory bricks of an existing incinerator are troublesome to replace can be effectively solved.

The invention discloses a subway axle box bearing. The subway axle box bearing consists of an outer ring, an inner ring, an inner retainer ring, two columns of rollers, two retainers of an integral structure, two sealing rings and a movable inner spacer ring, wherein the outer ring is provided with two raceways, the inner ring is a single raceway, the inner spacer ring is in a barrel shape, the outer ring is installed at the outer side of the inner ring, the two raceways of the outer ring correspond to the single raceway of the inner ring, one side of the inner ring is connected with the innerretainer ring, the two raceways of the outer ring are separately provided with one retainer of the integral structure, a roller is installed in the retainer, the movable inner spacer ring is installed between the two retainers, and the middle parts of two ends of the outer ring and the inner ring are separately provided with the sealing ring. The subway axle box bearing actually solves the defects of the bearing at present and has the advantages of high speed, heavy load, reliable performance and the like and is convenient in use and long in service life.