42results about How to "Improve the rigidity of the structure" patented technology

The invention is applicable to the technical field of building construction and provides an assembled early-detached building template system and a setup method thereof. In the template system, a first standard internal-wall template is close to the internal-corner position of a building structure, and a first non-standard external-wall template is close to the external-corner position of the building structure, so that a first vertical is closer to a wire drawing rod rather than the building structure, and stress of the template at the corner position of the building structure is improved. Wire drawing rod holes are arranged in second standard internal and external wallboards, the horizontal distance and the height distance of the wire drawing rod group are fixed, standardized and serialized, and processing difficulty and cost of templates are lowered. Meanwhile, hole positions have no need to be repeatedly changed, turnover rate of the templates is increased, service lives of the templates are prolonged and cost is reduced. With the bottom angle plate, the first vertical internal-corner template, the second vertical internal-corner template and the inner wallboard, structural rigidity of the template system is enhanced, the horizontal-plane template correcting procedure of the inner wallboard is simplified in advance, and setup efficiency of the template system is improved.

The invention provides a wide-gauge electric locomotive walking device. The wide-gauge electric locomotive walking device comprises a frame, a plurality of walking mechanisms, a plurality of connection beams and driving mechanisms for driving the walking mechanisms, wherein the walking mechanisms are mounted blow the frame in a paired manner; the two walking mechanisms which are arranged in the paired manner are located at the two sides of the frame; each walking mechanism comprises a balance beam and a wheel; the balance beams are mounted at the bottom of the frame along the walking direction of the wide-gauge electric locomotive walking device; one end of each balance beam is hinged at the bottom of the frame and the other end of each balance beam is connected with the bottom of the frame by an elastic piece; each wheel is provided with a wheel shaft; the wheels are mounted on the balance beams by the wheel shafts; the connection beams are connected between the two balance beams of each pair of the walking mechanisms one to one. The wide-gauge electric locomotive walking device provided by the invention is reasonable in design and stable to operate, and is applicable to traction equipment for a large-size coke quenching car with a wider gauge.

The invention relates to a benzodithiophene copolymer containing pyrido[2,1,3]thiadiazole units and its preparation method and application. The polymer has the following structural formula: wherein, R1 and R2 are respectively selected from H Or C1 to C16 alkyl; R3, R4 are respectively selected from H, C1 to C16 alkyl, C1 to C16 alkoxy or C1 to C16 alkyl substituted thienyl; X is N and Y is CH, or X is CH and Y is N; n is a natural number between 7 and 80. And, the benzodithiophene copolymer containing pyrido[2,1,3]thiadiazole unit is used in polymer solar cells, polymer organic electroluminescence, polymer organic field effect transistors, polymer organic light storage , polymer organic nonlinear materials or applications in polymer organic lasers.

The invention relates to alkali lignin-phenol-sodium sulfanilate-formaldehyde polycondensate and a preparation method thereof. The polycondensate is a liquid product or a powder product, and has the weight-average molecular weight Mw of 3,200 to 100,000 and the number-average molecular weight Mn of 1,600 to 50,000; and the preparation method comprises the following steps of: directly performing phenolate reaction on alkali lignin and phenol and derivatives thereof under the alkaline condition to prepare phenolic alkali lignin; performing polycondensation on the phenolic alkali lignin, sodium sulfanilate and formaldehyde; and introducing a large number of active phenolic hydroxyls and sulfonic acid groups onto a framework of the alkali lignin to prepare a coal-water-slurry additive of alkali lignin-phenol-sodium sulfanilate-formaldehyde polycondensate. The alkali lignin-phenol-sodium sulfanilate-formaldehyde polycondensate has not been reported at home and abroad at present. The preparation process is low in production cost, and the process method is simple and convenient; and the production cost of the product can be reduced, and the coal adaptability, stability and dispersibility of the product can be improved.

The invention belongs to the technical field of photoelectric materials, and discloses a hole injection material with a high glass transition temperature and its preparation and application. The structure of the hole injection material is shown in Formula I. The method: (1) react p-iodoanisole and 6-bromo-2-naphthylamine to obtain formula II compound 6-bromo-N, N-two (4-methoxyphenyl)-2-naphthalene Amine; (2) reacting the compound of formula II and double pinacol borate to obtain the compound of formula III; (3) reacting the compound of formula II and compound of formula III to obtain the hole injection material. The hole injection material of the invention has high glass transition temperature and decomposition temperature, high HOMO energy level, good hole mobility, and is beneficial to hole injection and transport. The hole injection material provided by the invention has important application prospects in photoelectric devices.

The invention discloses a preparation method and application of an aluminum tanning agent complex capable of polymerizing in leather collagen, and belongs to the technical field of leather processing.The preparation method comprises the steps that water-soluble polymers mainly comprising non-volatile unsaturated monomers, such as propylene sulfonic acids, are used as raw materials to prepare thealuminum tanning agent capable of polymerizing in the leather collagen in leather, and then the complex unsaturated monomers in the aluminum tanning agent are subjected to polymerization reaction in the leather collagen by using an initiator to form polymers, and transverse crosslinking or multi-point hydrogen bonds is / are formed, so that the shrinkage temperature of the leather collagen can be upto 80 DEG C. The polymers can be generated in the leather collagen, so that the absorption rate of aluminum tannin is improved, the washing resistance of the aluminum tanning agent in the leather isimproved, and the aluminum tanning agent can be used in a leather tanning agent instead of a chrome tanning agent. According to the preparation method and the application of the aluminum tanning agentcomplex capable of polymerizing in the leather collagen, the high quality requirement of the leather is met, and the cleaning technical requirement of the leather industry is met.

A joint structure and joining method of dissimilar pipe fittings and dissimilar pipe joints thereof, which are applied to the assembly of space trusses. The dissimilar pipe joints include an upper joint pipe body and a lower joint pipe body; an upper joint pipe body and a lower joint pipe body , the upper joint pipe body is made of a first metal material, the lower joint pipe body is made of a second metal material different from the first metal material, and the upper joint pipe body and the lower joint pipe body are up and down A first tube body is butted together to define a first tube body. The upper joint tube body and the lower joint tube body are respectively provided with a plurality of upper tabs and corresponding lower tabs protruding outward on the outer surface of the upper joint body for face-to-face stacking. As for the tab, a second tube body protrudes outward from the side of the upper connector tube body away from the first tube body.

The present invention relates to an organic electroluminescent compound containing adamantane and a heterocyclic structure and its preparation method and application. Its chemical structural formula is shown in general formula I: wherein, X exists or does not exist; Independently selected from chemical bonds, O, S, Si(R4R5), C(R6R7), NR8; Y1‑Y9 independently selected from carbon, nitrogen, oxygen, sulfur atoms, at least one of which is a heteroatom; R1‑R3 each independently selected from methyl, ethyl, propyl, tert-butyl, alkoxy, alkylmercapto, aryloxy, phenyl, biphenyl, or naphthyl; Ar1 ​​and Ar2 are each independently selected from naphthyl, Phenanthryl, phenyl, methylphenyl, terphenyl, biphenyl, dibenzofuran, dibenzothiophene, cyclopentadithiophene, cyclopentadifuran, fluorene and their derivatives. The compound changes the spatial structure and physical and chemical properties of the compound through the use of the adamantane structure and the introduction of heteroatoms. As a luminescence auxiliary layer, the driving voltage of the device can be greatly reduced, and the life and efficiency of the device can be significantly improved.