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

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 present invention relates to a connecting rod comprising a small spherical small end having a ball (24) and a main rod (12). The ball (24) and the main rod (12) are designed as individual parts and form, when assembled, a connecting rod having a spherical small end.

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.

Wheel mudguard (6) for a bicycle (1) comprises a first part (10), a second part (11), and / or a third part (12), and a connecting device for connecting the at least one part (10, 11, 12) and the bicycle (1), wherein the first part (10) is arranged on the radial inner side, the second part (11) and / or the third part (12) are / is arranged on the radial outer side, the connecting device on the first part (10) is covered by the second part (11) and / or the third part (12), the connecting device is assembled in the state of the bicycle (1) and is invisible from the radial outer side, and / or at least one fixing element is arranged to realize the connection between the first and second parts (10, 11), the fixing element starts from one of the two parts (10, 11), and at least partially passes through one of the two parts (10, 11) to realize joint or at least sectionally to be jointed with the other part.

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 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 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.