35results about How to "Achieve pre-assembly" patented technology

An attapulgite clay-Ni / Fe nano composite material, a preparation method and applications thereof are characterized in that the attapulgite clay is taken as the raw material; metallic nickel and / or metallic iron particles with the diameter less than 20nm are loaded on the surface of attapulgite rhabdolith with the diameter between 40 and 50nm; the preparation method is that the attapulgite clay is prepared into suspension liquid, then the suspension liquid is hydrolyzed with iron salt and nickel salt and loaded on the surface of attapulgite crystal in the precipitation form of hydroxide, and finally the composite material is prepared through washing, dehydration, forming, drying and hydrogen reduction and calcination. With a nano structure, the composite material has low activation energy, high catalytic activity and strong resistance to carbon deposit, and can be applied to catalytic pyrolysis and purification of thermal gas and tar of a biomass gasification furnace and the catalytic pyrolysis of other various organisms.

A heat radiating device comprises a fixed module and a heat radiator mounted on the fixed module, wherein, the fixed module includes a pair of support arms arranged separating from each other and a connection plate connecting opposite ends of the two support arms, a pair of oppositely-arranged positioning lugs extend upwards from connection positions of the support arms and the connection plate; the heat radiator includes a base seat arranged on the support arms and a plurality of heat radiating fins extending upwards from the base seat, a fastening portion fastened with the heat radiator base seat is formed on each support arm. In the invention, the fastening portion fastened with the heat radiator is mounted on the fixed module, pre-assembling of the fixed module and the heat radiator can be realized before the fixed module is mounted on a circuit board, the assembling is convenient and quick thereby improving assembling efficiency.

The invention discloses a fire-fighting sprinkler head. The fire-fighting sprinkler head comprises a body and a choke plug. A base is arranged on the lower end of a frame of the body, a splashing disc is arranged on the lower end of the base, the choke plug is in seal connection with the water outlet end of the body, a releasing device is arranged at the position, between the choke plug and the base, on the body, and comprises a supporting plate, one end of the supporting plate is connected with the lower end of the choke plug, the other end of the supporting plate is rotatably connected with a pressing plate, the end, close to the choke plug, of the supporting plate is connected with one end of a glass ball, the other end of the glass ball is connected to the end, away from the supporting plate, of the pressing plate, the pressing plate is supported by an adjusting screw screwed in the base, the eccentric distance exists between the rotating center on the connecting position of the supporting plate and the pressing plate and the center of the axis of the adjusting screw. The advantages of being stable in bearing, sensitive in temperature inducing, high in trigger speed, and convenient to assemble are achieved.

The invention discloses an attapulgite-perovskite composite material, a preparation method and application thereof, wherein the attapulgite-perovskite composite material is a composite material obtained by loading perovskite particles on the surface of attapulgite by taking attapulgite clay as a carrier, and the load capacity of the perovskite is 6-12 percent of the mass of the attapulgite clay. The composition of the composite material is mu%La1-xSrxMnO3 / PG, wherein mu is 6-12, and x is 0, 0.1 or 0.3. The composite material disclosed by the invention is of a nano structure, has the advantages of low activation capacity, high catalyst activity and strong capacity of resisting inactivation and can be applied to the purification of volatile organic pollutants such as toluene and the like and the catalysis and oxidization of other various organic matters.

The invention relates to an optical fiber connector socket for ignition and detonation. The optical fiber connector socket for ignition and detonation comprises a hollow socket shell, and the front end of the socket shell forms a butt end for plugging with a matching optical fiber connector plug , the rear end of the socket housing forms a connection end for connecting the detonator, the socket housing is provided with a pin component, and the pin component includes a pin structure for receiving the optical signal output by the optical fiber connector plug and detonating the detonator , the pin component also includes a pin fixing piece inserted in the socket housing and positioned by the rear and forward stop, the pin fixing piece has a welding connection part welded and sealed with the socket housing, the pin fixing piece and the socket housing are welded and sealed. A peripheral surface sealing structure is provided between the socket housings on the side of the welded connection portion in the front-rear direction. The optical fiber connector socket for ignition and detonation is double-sealed to ensure its own sealing effect under the action of a relatively large impact force.

The invention discloses a track vibration attenuation fastener. The track vibration attenuation fastener comprises a positioning boss (4), an elastic cushion (3) and a locking mechanism; the elastic cushion (3) comprises two layers of cushion bodies, and a track bearing plate (2) is arranged between the two layers of cushion bodies; the locking mechanism comprises a locking nylon sleeve (6), a preassembled protrusion (61) and a preassembled groove (22) are mutually buckled, a flange (62) presses the top of the track bearing plate (2), and then the elastic cushion (3), the track bearing plate (2) and the locking nylon sleeve (6) form a preassembled structure; and the preassembled structure penetrates through a boss structure of the positioning boss (4) and is arranged on the top of a trackfoundation, the locking mechanism further comprises a locking cover plate (7) and a bolt assembly, and the locking cover plate (7) and the bolt assembly jointly compress the positioning boss (4) and the preassembled structure. The invention further discloses a track vibration attenuation fastener installing method. According to the track vibration attenuation fastener, preassembling of the elasticcushion, the track bearing plate and the locking nylon sleeve before delivery is effectively achieved, and quick installation on the site is achieved.

An attapulgite clay-Ni / Fe nano composite material, a preparation method and applications thereof are characterized in that the attapulgite clay is taken as the raw material; metallic nickel and / or metallic iron particles with the diameter less than 20nm are loaded on the surface of attapulgite rhabdolith with the diameter between 40 and 50nm; the preparation method is that the attapulgite clay isprepared into suspension liquid, then the suspension liquid is hydrolyzed with iron salt and nickel salt and loaded on the surface of attapulgite crystal in the precipitation form of hydroxide, and finally the composite material is prepared through washing, dehydration, forming, drying and hydrogen reduction and calcination. With a nano structure, the composite material has low activation energy,high catalytic activity and strong resistance to carbon deposit, and can be applied to catalytic pyrolysis and purification of thermal gas and tar of a biomass gasification furnace and the catalytic pyrolysis of other various organisms.

The present invention concerns a valve (1) for dispensing liquid substances from a closed and airtight container (3), the valve (1) comprising a valve housing (10) with a first end (10A) configured to be detachably attached to and in fluid communication with the container and a second end (10B) at which the liquid substance is to be dispensed in a dispensing direction by means of gravity. The dispensing valve (1) is useful in dispensing and has a more reliable and / or reproducible and simpler emptying of a closed and airtight / airproof container by means of an improved changing of air with liquid substance in the container when it is being emptied / dispensed.

The invention relates to a fuel delivery unit (1), which can be inserted into the fuel tank (3) of a motor vehicle, comprising a swirl pot (6), a flange (11) for closing an opening (2) in the fuel tank (3), at least one support element (12) configured as a hollow profile, which is arranged between the flange (11) and the swirl pot (6) and prestresses the swirl pot (6) relative to the bottom (4) of the fuel tank (3), and a filling level sensor arranged on the swirl pot (6). The swirl pot (6) comprises at least one receptacle (16) for the at least one support element (12), the support element (12) gliding in said receptacle when the distance between the flange (11) and swirl pot (6) changes. The receptacle (16) extends to the bottom (17) of the swirl pot (6) and completely surrounds the periphery of the support element (12) and comprises an opening (22) in the bottom region through which fuel from the fuel tank (3) can enter the receptacle (16). The filling level sensor comprises a transmission and receiving unit (20) for ultrasonic waves, wherein the transmission and receiving unit (20) is arranged in the fuel delivery unit (1) such that the ultrasonic waves run in the receptacle (16) and the support element (12).

The invention provides a motor rotor. The motor rotor comprises a rotor core, magnetic steel, a first baffle, a second baffle, and fasteners, the first baffle is arranged at a first end of the rotor core, the first baffle is provided with counterbores for limiting the fasteners, each fastener comprises three segments in the length direction, the diameter of the second segment of the fastener is greater than the diameters of the first segment and the third segment of the fastener, the second segments of the fasteners are arranged in the counterbores, the second baffle is arranged at a second end of the rotor core, the second baffle is provided with through holes in a corresponding manner, the third segments of the fasteners can penetrate through the through holes, and the first baffle and the second baffle are fixed on the rotor core through the fasteners. The invention also provides a magnetizing method of the motor rotor. According to the motor rotor and the magnetizing method thereof, good coaxiality of the rotor and a crankshaft is guaranteed, magnetizing saturation of the magnetic steel is ensured, the magnetizing process is optimized, and the performance and the reliability of the motor are improved.

The bearing i.e. tapered roller bearing (1), has a roller body (8), which is axially arranged besides another roller body (7) with respect to a rotation axis. The former roller body unrolls between an outer ring (4) and an inner ring (6). A lubricating grease inlet (21) is arranged at an axial side of the outer ring with respect to the rotation axis for supplying the latter roller body with lubricating grease (22). Another lubricating grease inlet (27) is arranged at another axial side of the outer ring for supplying the former roller body with the lubricating grease. An independent claim is also included for a bearing system comprising a roller bearing.

The invention relates to a split type miniature peristaltic pump, in particular to a miniature peristaltic pump, wherein a pipeline is integrated to a pump head, and both the pump head and the pipeline can be used for one time. The micropump comprises a pump body, a motor and a pump head and pipeline assembly. The pump head and pipeline assembly comprises a pump head seat, an eccentric wheel, a pump head roller and a circumferential pressing pipeline; a pump head seat center hole is formed in the pump head seat, a through hole is coaxially formed in the bottom of the pump head seat center hole, and a pipeline inlet / outlet groove is formed in one side of the pump head seat; the pump head roller is arranged in the pump head seat center hole, a pump head roller center hole is formed in the pump head roller, and the eccentric wheel is arranged in the pump head roller center hole and connected with an output shaft of the motor through an eccentric hole; and a pump head roller groove is formed in the outer wall of the pump head roller, and the circumferential pressing pipeline is sleeved with the pump head roller groove along the outer wall of the pump head roller. According to the micropump, the structure of the assembly formed by the pump head and the pipeline can guarantee that the pump is compact in structure and small in size; and the single-use purpose can be achieved, the pollution risk is lowered effectively, and the experiment success rate is increased to a great extent.

The invention relates to a rail fastening system (1) for fastening a rail (2) on a rail underlying surface, preferably for a solid roadway, which rail fastening system has a base plate (10), preferably made of plastic, and at least one dowel (20), wherein the base plate (10) has at least one opening (15), which penetrates the base plate (10) completely in the thickness direction, and wherein the dowel (20) is introduced into the opening (15), is retained therein by means of a retaining contour and, in the thickness direction, projects above the base plate (10), at least on one side.

The invention relates to a sewage treatment system, in particular to an integrated double-membrane sewage treatment system. Integrated dual-membrane sewage treatment system, including: several first-level biofilm treatment units, several second-level ultrafiltration membrane treatment units, sludge collection units for collecting sludge, emergency water collection units, and control of the entire system The operating control system and emergency pipelines are arranged sequentially between several first-level biofilm treatment units; several second-level ultrafiltration membrane treatment units are located behind the first-level biofilm treatment units and are arranged in sequence; one end of the emergency pipeline is connected to At the emergency water collection unit, several first-level biofilm treatment units and several second-level ultrafiltration membrane treatment units are connected to the emergency pipeline through maintenance and emptying pipes. The invention has the beneficial effects of effectively improving the efficiency of sewage treatment, enhancing the effect of sewage treatment, reducing the area required for overall construction, and the like.