32results about How to "Reliable sealing method" patented technology

The invention relates to a high-pressure gas bottle and an inflating method thereof. The high-pressure gas bottle comprises a bottle nozzle which is provided with a gas bottle opening, the gas bottle opening is a ladder outlet with a smaller inner part and a bigger outer part, an inflating plug is arranged at a wide mouth section of the ladder outlet in a revolving mode through screw threads, the inflating plug is provided with a gas outlet channel communicated with the gas bottle opening, a sealing membrane is arranged at the outer port of the gas outlet channel in a sealing mode, and the ladder end face of the opening forms a sealing fit with the inner side end face of the inflating plug. The inflating plug is firstly unscrewed for 1 to 3 circles when inflating, gas is inflated to the gas bottle through thread gaps between the inflating plug and the bottle nozzle, the inflating plug is screwed for sealing when the inflation is over, and then sealing weld is set on the end face of the bottle nozzle so as to realize sealing between the inflating plug and the gas bottle opening. The inflating plug is arranged in the gas bottle opening in a revolving mode, gas is inflated to the gas bottle through the thread gaps between the inflating plug and the bottle nozzle, and the inflation is simple, safe and reliable.

A atomizing powdering is provided and is provided with an open smelting furnace used for melting steel and a tundish for receiving molten steel. The molten steel in the open smelting furnace is kept sufficient so that the tundish can quickly receive the molten steel from the furnace, thereby pouring a spray ladle. Further, on the one hand, a plurality of tundishes, such as two, can be designed such that the two tundishes can alternately receive molten steel from the open smelting furnace and carry out continuous multi-pack casting of the same spray ladle. On the other hand, multiple spray ladles can be designed to save time in replacing the spray ladles. In this way, the time and operation rate of the powdering process can be improved, and the refractory material in the spray ladles can besaved.

The invention discloses a solid fuel vacuum pouring device which comprises a hopper, a plunger type flow regulating valve core, a pattern plate, a pouring cylinder cover, a pouring cylinder body, a water bath circulating heater, a water bath silica gel hose, a vacuum pressure gauge, a vacuum pipeline, a vacuum pump, a manual three-way ball valve and a forming die. The hopper and the pouring cylinder body are designed into a double-layer structure, and the circulating water bath heater is used for heating and insulating the hopper and the pouring cylinder body, so that the temperature of medicinal slurry can be maintained within a temperature range required by a pouring process for a long time, the fluidity and the leveling property of the medicinal slurry meet the requirements of the pouring process, and normal pouring of the medicinal slurry is realized. The replaceable pattern plate is arranged at the bottom of the hopper and can be adjusted and replaced according to the size and theshape of fuel. The interior of the pouring cylinder body is connected with the vacuum pump through a vacuum conduit, so that the medicinal slurry is poured into the forming die in a vacuum environment, and the poured fuel is free of bubbles or air holes.

The invention relates to an improved optical fiber splice sealing box and a sealing method. The optical fiber splice sealing box is composed of an optical fiber fusion splice tray used for containing and fixing a main optical cable and a plurality of optical fibers, a sealing member used for matching the optical fiber fusion splice tray to fix the main optical cable and the optical fibers, a pressing plate used for fixing the sealing member on the optical fiber fusion splice tray, a square cavity box used for containing the optical fiber fusion splice tray and connected with the pressing plate and the sealing member to form a closed cavity. The optical fiber splice sealing method is as follows: the sealing member fixed with the main optical cable and the optical cables is arranged in a semi-closed cavity on one end of the optical fiber fusion splice tray and is fixedly connected with the optical fiber fusion splice tray through the pressing plate. The optical fiber splice sealing box uses an improved mechanical sealing form and has the advantages of reliable sealing method, simple and convenient operation, repeated use and convenient repair and market expansion.

The invention relates to the F16K5/00 classification of a faucet or cock containing only a cutting device in IPC (International Patent Classification), in particular belonging to a ball rod valve. The technical scheme adopted by the invention is as follows: the ball rod valve comprises a fixed nut cap (1), an operating handle (2) and a valve body which comprises a water outlet (7) and a water inlet (8); and the ball rod valve is characterized in that the operating handle (2) is connected with a valve plate assembly (6) in the valve body (5) through a valve rod (3) with a consubstantial ball valve, and in addition, the valve rod (3) with the consubstantial ball valve outside the valve body (5) is provided with a valve rod ball valve cover (4). The ball rod valve provided by the invention has the following beneficial effects: 1. the adopted method for sealing the valve rod with the consubstantial ball valve and the valve body is reliable, the performance is good, and the valve is endurable; and 2. according to different occasions, the structure of the valve rod with the consubstantial ball valve provided by the invention can be used by adopting an axial mode and a radial mode.

The invention discloses a double-mandrel direct-connection precise rotating shaft. The double-mandrel direct-connection precise rotating shaft comprises a main mandrel and a mandrel, wherein the mandrel penetrates and is fixedly connected with a wave generator of a harmonic reducer, the large end of the main mandrel is fixedly connected with a flexible gear of the harmonic reducer, a rigid gear of the harmonic reducer is fixedly connected with a B shaft outer cover, a first contact ball bearing and a second contact ball bearing are fixed on the inner side of the B shaft outer cover, which is close to the harmonic reducer, a third contact ball bearing and a fourth contact ball bearing are fixed on the inner side of the B shaft outer cover, which is far away from the harmonic reducer, inner rings and outer rings of the first, second, third and fourth contact ball bearings are connected with inner and outer ring sleeves respectively, and a first flange and a second flange are disposed at two ends of the B shaft outer cover. According to the double-mandrel direct-connection precise rotating shaft, two mandrels are arranged inside, and the small mandrel drives the large mandrel through the harmonic reducer.

The invention relates to the technical field of welding devices, in particular to a welding gun. The welding gun comprises a sprayer, an air cavity, a nozzle assembly and a ball valve. The sprayer and the air cavity are connected through pipe threads. The air cavity and the nozzle assembly are connected through a connecting sleeve. The nozzle assembly and the ball valve are connected through the pipe threads. The sprayer is in a 45-degree arc shape. The nozzle assembly comprises a nozzle, an adjusting nut, a gasket, an adjusting sleeve and a joint. The nozzle is arranged at one end of the adjusting sleeve, and the joint is arranged at the other end of the adjusting sleeve. An outer thread is arranged on the outer wall of the adjusting sleeve. The adjusting nut is arranged on the outer wall of the adjusting sleeve in a sleeving mode. The gasket is arranged between the connecting sleeve and the adjusting nut. The connecting sleeve and the air cavity are connected through pipe threads. The connecting sleeve and the adjusting sleeve are connected through pipe threads. The welding gun is simple in structure and high in welding quality.

The invention discloses an apparatus and method for preparing high-energy fiber forage grass through the steam explosion technology, and belongs to the technical field of straw utilization. The methodcomprises the following steps: first crushing straws and removing impurities, then filling crushed straws into a steam explosion tank, introducing saturated steam, maintaining a certain pressure fora certain period of time, then exploding out the straws to produce high-energy fiber forage grass, and then adding other beneficial special microorganisms and auxiliary materials to produce compositehigh-energy fiber forage grass. The steam explosion apparatus comprises the steam explosion tank, wherein a hydraulic oil cylinder is connected with a triangular cone through a steel wire rope, the triangular cone can move up and down and can close a material inlet when moving to the highest position, a material outlet is equipped with a pneumatic hard seal hemisphere valve, and a steam inlet, a pressure detection instrument, a temperature detection instrument, a safety valve and the like are additionally arranged. The straws are disinfected and sterilized in the steam explosion tank, the pesticide residual toxicity is decomposed, and lignin and cellulose are softened and partially degraded; and a pressure is suddenly relieved, so that the whole structure of the straws is torn and loosened, the absorption and digestion of cattle and sheep are facilitated, and therefore the digestibility and nutritional value of straw feed are improved. The apparatus and method have the advantages of being simple in technological process, simple in apparatus structure, low in cost, high in economic benefits, and easy to industrialize.

The invention relates to a sealing structure and method applied to a high-pressure container. The structure comprises the high-pressure container, an unloading opening is formed in the high-pressure container, a step is arranged at one end of the high-pressure container and used for containing an anti-explosion piece for detecting the sealing effect, mineral powder with certain gradation is arranged on the anti-explosion piece, and a gap is formed between the anti-explosion piece and the inner wall of the high-pressure container; water is injected into the high-pressure container through a water injection mechanism, the mineral powder with certain gradation flows towards the threaded gap between the anti-explosion piece and the inner wall of the high-pressure container under the pushing effect of water, the threaded gap is filled in order, and sealing is achieved. The sealing method of the technical scheme is more efficient than a traditional sealing mode or based on a high-pressure container structure type or by utilizing a special sealing material. According to the sealing structure and method, mineral powder is used for plugging, the method is a reliable supplement of a conventional sealing mode, and the mineral powder is a product generated through rapid unloading of the high-pressure container but not specially customized. Therefore, the sealing method is simple, efficientand reliable.

The invention provides a thin-wall type cooling hole liquid flow detection device and method, and solves the problem that cooling hole liquid flow detection cannot be carried out due to the fact that the side wall structure of an engine combustion chamber is thin, not easy to fix, large in deformation risk and not easy to seal in the prior art. The detection device comprises a water inlet assembly, an inner tube assembly and a connecting assembly, the principle that acting force and counter-acting force are balanced and equal is adopted, and the inner tube assembly and the water inlet assembly which are tightly attached to the inner wall and the outer wall of a product are connected through a screw of the connecting assembly, and due to the fact that acting force and counter-acting force are the same in magnitude and opposite in direction, the force applied to the product by the inner tube assembly and the water inlet assembly in one direction can be completely counteracted, so that product deformation is avoided, the detection device and the product are connected into an integral structure through the screw, and the product is convenient to protect, carry, test and the like.

The invention provides a mass spectrum and chromatography interface device and a mounting method thereof. The mass spectrum and chromatography interface device comprises a chromatographic column, the end cover is provided with a first axial extension part, a radial part, a second axial extension part and a third axial extension part which are arranged in sequence; a hollow inner diameter expansion section is arranged in the first axial extension part, and a through hole is formed in the radial part; the second axial extension part is connected with the circumferential direction of the radial part, and the outer diameter of the second axial extension part is smaller than that of the third axial extension part; the pressed part is arranged in the inner diameter expansion section and is extruded by the extrusion part; a protective tube is arranged on one side of the radial part; the chromatographic column sequentially penetrates through the protective tube, the through hole of the radial part, the through hole of the pressed part and the through hole of the extrusion part; and a sleeve is arranged on the outer side of the protection pipe, one end of the sleeve is connected with the third axial extending part, and the other end of the sleeve is provided with a mounting position. The sealing piece is arranged on the outer side of the second axial extrusion part in a sleeving mode. The device has the advantages of good sealing, small error and the like.

The invention discloses a non-central blanking solid shaft transmission pulverized coal separator and a using method, the non-central blanking solid shaft transmission pulverized coal separator comprises a solid shaft transmission device, an upper shell and a lower shell, and the solid shaft transmission device is arranged on the upper shell; the upper side part of the solid shaft transmission device is arranged above the upper shell; the lower side part of the solid shaft transmission device is arranged in the upper shell; the upper shell and the lower shell can be tightly butted and fixedly connected; a rotor is arranged below the solid shaft transmission device; and static blades are arranged on the outer side of the rotor. The structure is simple, and sealing is reliable. For a dynamic separator matched with non-central blanking powder manufacturing equipment, hollow shaft transmission is simplified into solid shaft transmission, so that the transmission structure is simplified, the number of parts is reduced, and the production cost is reduced; all parts of the separator are designed in a modularized mode, installation and maintenance are convenient, the solid shaft transmission separator is small in occupied space, powder pipe butt joint in a transformation project is simple, the workload is small, the bearing sealing mode is reliable, and the sealing air demand quantity is small.