40results about How to "Linkage stability" patented technology

The present invention relates to a temperature-stable labeling reagent of formula:in whichR1 represents H or an alkyl, aryl or substituted aryl group,R2 represents a detectable marker or at least two detectable markers linked together by at least one multimeric structure,L is a linking arm containing a linear succession of at least two covalent bonds and n an integer equal to 0 or 1,R3 and R4 represent independently of each other: H, NO2, Cl, Br, F, I, R2-(L)n-Y—X—, OR, SR, NR2, R, NHCOR, CONHR, COOR with R=alkyl or aryl,A is a linking arm containing at least one covalent double bond allowing conjugation of the diazo functional group with the aromatic ring and u is an integer between 0 and 2, preferably equal to 0 or 1, and—Y—X— represents —CONH—, —NHCO—, —CH2O—, —CH2S—.The present invention also describes a method for synthesizing said markers as well as applications for labeling biological molecules, in particular nucleic acids, with a labeling reagent carrying the diazomethyl functional group.The invention finds a preferred application in the field of diagnosis.

A process for producing a polyrotaxane in a high yield and at a satisfactory cost without using a large excess of a pseudopolyrotaxane and / or without using a large excess of an activated reagent. The process for polyrotaxane production comprises: an inclusion step in which a carboxylated polyethylene glycol which is a polyethylene glycol carboxylated at each end is mixed with cyclodextrin molecules to obtain a pseudopolyrotaxane which comprises cyclodextrin molecules which include the carboxylated polyethylene glycol in their cavities as if the cyclodextrin molecules are spitted with the carboxylated polyethylene glycol; and a capping step in which the pseudopolyrotaxane is reacted with capping groups having —NH2 or —OH to obtain a polyrotaxane terminated at each end by a —CO—NH-(capping group) or —CO—O-(capping group).

The invention discloses a solar tracking system which comprises at least two main beams and a plurality of bases. The main beams are used for mounting solar photovoltaic panels, the bases are used for mounting the main beams, and two ends of each main beam are respectively connected the corresponding bases by first universal connectors; the adjacent main beams are connected with one another by connecting rod assemblies, and the connecting rod assemblies are used for transmitting rotational movement of the adjacent solar photovoltaic panels. The first universal connectors comprise first spheres and first spherical hinged supports, the first spheres are fixedly connected with the main beams, the first spherical hinged supports are fixedly arranged on the bases, and the first spheres are positioned in the first spherical hinged supports to form first spherical hinges. The solar tracking system has the advantages that the main beams can be in linkage with one another by the aid of the connecting rod assemblies even if the central axes of the adjacent main beams are not positioned on the same plane, accordingly, the multiple main beams can be driven by a driving device to rotate in uneven regions, the sun can be tracked by the solar photovoltaic panels, and the power generation of solar power generation systems can be effectively guaranteed.

The invention relates to a needling production line for textiles. The needling production line comprises a central control unit, an opening and picking unit, a cotton storing and feeding unit, a carding machine unit, a lapping machine unit and a needling machine unit, wherein the central control unit is respectively connected with the opening and picking unit, the cotton storing and feeding unit, the carding machine unit, the lapping machine unit and the needling machine unit through signal wires; the cotton storing and feeding unit is positioned between the opening and picking unit and the carding machine unit; the lapping machine unit is positioned between the carding machine unit and the needing machine unit. The needling production line realizes integrated control, saves the space occupied by an equipment control unit, further saves the labor cost, also improves the production efficiency of equipment, and thus ensures that the linkage of the whole production line is more stable. The problems that interlocking signals are easily interfered and the like during equipment linkage are solved.

The invention discloses a mechanical key unlocking mechanism. The mechanical key unlocking mechanism comprises a lock housing, a deadbolt, a latch bolt and a lock cylinder, wherein a deadbolt plate isarranged on the side, facing the inside of the lock housing, of the deadbolt; a deadbolt stirring plate meshed with an inner stirring plate is arranged on the deadbolt plate; a pin is fixedly arranged on the lock housing; the deadbolt plate and the deadbolt stirring plate are coaxially arranged through the pin; a sliding groove formed in a transverse direction of the locking housing is formed inthe deadbolt plate; the pin is arranged in the sliding groove; when the inner stirring plate rotates, the deadbolt stirring plate is driven to rotate and the deadbolt plate is driven to transversely shift toward the inner side of the lock housing along the sliding groove; a limiting pin is further arranged on the deadbolt stirring plate; a limiting groove that matches the limiting pin in a slidingmanner is formed in the deadbolt plate; and when the deadbolt plate transversely shifts along the lock housing, the limiting pin moves along the limiting groove. The mechanical key unlocking mechanism has the following beneficial effect: since the pin and the limiting pin are arranged, and the sliding groove and the limiting groove are formed in the deadbolt plate, the mechanical key unlocking mechanism is simplified.

The invention discloses a welding equipment for processing a PCBA main board, which comprises a welding base, a welding vertical column is arranged on the upper part of the welding base, an electric sliding rail is arranged on the welding column, and an electric sliding block is arranged in the electric sliding rail for sliding. There is a lifting seat on the block, the lower part of the lifting seat is provided with a horizontal sliding rail, a sliding seat is provided in the electric sliding rail in the horizontal sliding rail, the lower part of the sliding seat is provided with a welding head, and the side of the sliding seat is provided with a touch block, and the touch block Set in contact with the trigger assembly. The invention starts the limit motor, the driving bevel gear and the driven bevel gear mesh with the limit rotation shaft, and the limit rotation shaft rotates to realize the rotation of the limit screw area, and then realize the movement of the limit screw block, and pass through the welding base through the limit through column. The limit through groove of the locator is matched with the upper seat, so as to realize the movement of the anti-position component.

The invention discloses a mechanical password changing vehicle lock as well as an unlocking control system and method thereof. The mechanical password changing vehicle lock comprises a ring-shaped lock main body, wherein the ring-shaped lock main body is provided with a first end and a second end which can be opened and closed; in a locking state, the first end and the second end of the ring-shaped lock main body are fixed with each other through a lock catch; in an unlocking state, the first end and the second end are separated from each other in a released mode; the first end is provided with a splicing rod part; one end of the splicing rod part is provided with a first buckle part; the second end is provided with a lock case; the lock case is provided with a hollow part; a pushing button, a locking block and a locking block return elastic element, which are sequentially arranged from top to bottom, are arranged on a position, which corresponds to the hollow part, on the lock shell; and the pushing button is connected with a password type lock cylinder structure which is used for controlling the pushing button to not freely push. Through the delicate design of the password type lock cylinder structure, the password can be automatically, mechanically and regularly changed after a password wheel group is unlocked, so that bad phenomenon such as vehicle loss and theft caused by password fixing are avoided, and vehicle management and maintenance is convenient. Meanwhile, the mechanical password changing vehicle lock is delicate and reasonable in structural design, is stable in linkage and is good in using reliability.

A rotating shaft device for a circuit breaker, which includes a plurality of contact supports installed with moving contacts and a rotating shaft for linking the plurality of contact supports. The contact and separation of the contacts realize the closing and breaking of the circuit breaker; the radial section of the rotating shaft is a parallelogram, the contact support is provided with a shaft groove with a V-shaped structure for installing the rotating shaft, and the rotating shaft device also includes a V-shaped The card plate of the fixed groove of the structure, the fixed groove of the V-shaped structure is set corresponding to the shaft groove of the V-shaped structure, the contact support is fixedly connected with the card plate, and the rotating shaft is fixed in the space enclosed between the shaft groove and the fixed groove , the shaft groove cooperates with two adjacent sides of the rotating shaft, and the fixed groove cooperates with the other two adjacent sides of the rotating shaft, so that multiple contacts can be supported through the rotating shaft for stable and firm linkage.

The invention discloses a small-diameter cylindrical sewing machine, which comprises a frame, a machine head arranged on the frame, and a cylinder located below the machine head; an eccentric installation through hole located above the axis of the cylinder is arranged in the cylinder, The eccentric installation through hole is equipped with a movable knife shaft cylinder, and the movable knife shaft cylinder is equipped with a rotary hook shaft; the movable knife shaft cylinder and the rotary hook shaft share a driving motor as power; the motor is connected to a transmission shaft, which is respectively connected to There are cam base and transmission assembly; the cam base is linked to a crank connecting rod assembly, and the crank connecting rod assembly is linked to the movable knife shaft; the transmission assembly is linked to the hook shaft; the clutch control assembly is used to control the clutch of the crank connecting rod assembly and the cam base , to realize intermittent thread trimming; in this way, through the structural design of the cylinder, moving knife shaft barrel, and hook shaft, and the moving knife shaft barrel and hook shaft share a driving motor as power, thereby effectively saving design space , which is conducive to the miniaturization design of the cylinder to meet the needs of small objects or small area processing and trimming.