Table trolley rotating device

The invention discloses a table trolley rotating device which comprises a fixing unit and a rotating supporting unit, and a vertically-arranged rotating shaft is arranged on the fixing unit; the rotating supporting unit is arranged on the rotating shaft so as to form rotatable connection with the fixing unit; the rotary supporting unit is provided with a guide mechanism for the table trolley to climb up or leave. By means of the rotating device, the table trolley can rapidly rotate in situ, the relative position and the relative angle between the table trolley and a station do not need to be adjusted in a time-consuming and labor-consuming mode, rapid loading and unloading of goods on the table trolley can be achieved conveniently, and the high-speed goods taking rhythm of the table trolley on site is met; in addition, workers can walk less conveniently, and the workload of the workers is reduced.

Weaving jacquard facing material for vehicle

The invention relates to the textile technique field, in particular to a woven jacquard-fabric used for vehicles. The shoot yarn of the fabric is woven by core yarn and sheath yarn; and an elastic composite textured yarn technique is adopted, namely, the sheath yarn adopts two common pre-oriented 240-Dtex PET terylene filaments which are firstly extended by 1.6 times and then are over-fed by 30 percent and the core yarn adopts two high elastic 150-Dtex PBT full-extended filaments which are over-fed by 8 percent, and then the core yarn and sheath yarn are woven into the high elastic compound shoot yarn at a speed of 600 meters/minute. The woven jacquard-fabric adopts the high elastic compound shoot yarn during weaving process to largely enhance the elasticity and flexibility of the fabric and enlarge the weft extension rate so as to meet the requirement to the fabric used for vehicles by present clients.

Bimetal complex catalyst system

New bimetal complex catalyst system for the selective hydrogenation of carbon-carbon double bonds in unsaturated copolymers is of formula M<1>aM<2>bXm(L1)n (I); M<1> = Rh or Ru; M<2> = Ru or lanthanide, provided that both are not Ru; X = H, Cl or Br; L1 = organophosphine of formula PR1R2R3, R1R2(CH2)nPR3R4, AsR1R2R3 or N, S or O-containing compound; R1-R4 = 1-6C alkyl, 6-12C cycloalkyl, aryl, 7-12C aralkyl or aryloxy; a = 1-4; b = 1-2; m = 3-6; and n = 6-15. Also claimed are (i) the preparation of the above catalyst system by dissolving and mixing ligand L1 and a solvent, mixing the halide of M<1> and M<2>, dissolving in hot solvent and adding to the reaction phase, removing the solvent and drying the crystalline of powdery catalyst system; and (ii) the hydrogenation of unsaturated copolymers by adding 0.1-20 wt. % of the above catalyst and a further ligand L2 (L2 is not defined) to a solution of the copolymer under H2, stirring for 1-20 hours under H2 at 0.5-5 MPa at 40-180 deg C and separating ...

Combined guide conveying device for forming enhanced HDPE (high-density polyethylene) pipe

The invention discloses a combined guide conveying device for forming of enhanced HDPE (high-density polyethylene) pipes, relates to the technical field of guide conveying devices, and aims to solve the problems that an existing guide conveying device can only conduct guide conveying on HDPE pipes with specific diameters in the using process, but most of the formed HDPE pipes are different in diameter, and the production efficiency is high. And the guide conveying limitation is large. Comprising conveying frames, conveying rollers are arranged between the two conveying frames, a driving motor is arranged on the outer wall of one side of one conveying frame, and an output shaft of the driving motor is in transmission connection with the conveying rollers through a coupling mechanism; the combined frame plate is installed at the upper end of the conveying frame, an inner carrying groove is formed in the combined frame plate, the inner carrying groove and the combined frame plate are integrally ...

Hydrogenation catalyst, its preparation method and application in unsaturated multipolymer hydrogenation

Series connection method multi-point displacement meter for internal observation quantity

The invention discloses a series multi-point displacement meter for internal observation quantity, which comprises a mounting cylinder with a mounting port on the inner wall of the bottom, a protective cover is screwed on the outer wall of the top end of the mounting cylinder, a mounting plate is arranged in the mounting cylinder, and an opening matched with the mounting port in position is arranged on the outer wall of the bottom of the mounting plate. The inner wall of the opening is sleeved with a sleeve, a buffer pad is sleeved with the sleeve, connecting plates distributed at equal intervals are welded to the outer wall of the mounting plate, sliding blocks are welded to the outer walls of one ends of the connecting plates, T-shaped sliding grooves distributed at equal intervals are formed in the inner wall of the mounting cylinder in the height direction, and the sliding blocks are slidably mounted in the sliding grooves. According to the device, the rear cover does not need to be ...

Hydrogenation catalyst, its preparation method and application in unsaturated multipolymer hydrogenation

The present invention relates to a bimetal double-ligand catalyst. Said catalyst and its solution are stable in air, applicable to hydrogenation of unsaturated copolymer, in particular for hydrogenation of acrylonitrile-butadiene rubber. Said invention also relates to its preparation method and its application in hydrogenation.

Process for removing hydrocatalyst from unsturated copolymer

High-density HDPE pipe polishing device

The invention discloses a high-density HDPE (high-density polyethylene) pipe polishing device, relates to the technical field of HDPE pipe polishing, and aims to solve the problems that most of existing HDPE pipe polishing machines are planes, single-point gun pipes are adopted during polishing, and rapid rotation and movement are needed for comprehensive polishing, so that the polishing efficiency is low. A mounting head is arranged at the front end of the handheld handle; the driving shaft is arranged at the lower end of the mounting head, a first rotating column is arranged on one side of the driving shaft, a second rotating column is arranged on the other side of the driving shaft, and a grinding belt is arranged outside the first rotating column, the second rotating column and the driving shaft; the timing belt is arranged between the second rotating column and the driving shaft, one end of the first rotating column, one end of the second rotating column and one end of the driving ...

Efficient pressure reducing device of industrial production equipment

The utility model relates to the technical field of mechanical equipment, in particular to an efficient pressure reducing device of industrial production equipment, which is convenient to control the pressure in a fermentation cavity by arranging the equipment, and automatically releases the pressure to reduce the limitation when the pressure in the fermentation cavity is too high; comprising a fermentation tank, a feeding port, an output port, a first handle, a control valve, a center control box, a pressure gauge, an exhaust pipe, a pressure release valve and four sets of rollers, a fermentation cavity is formed in the fermentation tank, the output end of the feeding port penetrates through the front end of the fermentation tank to be communicated with the fermentation cavity, the input end of the exhaust pipe penetrates through the upper side of the left end of the fermentation tank to be communicated with a storage cavity, and the pressure release valve is installed on the exhaust pipe ...

A rise molding die dress of hole for processing muscle of tubular product

The utility model discloses a rise molding die dress of hole for processing muscle of tubular product, it includes cylinder automatic clamping device, the type that rises is in block puts and buffer spring resetting means, cylinder automatic clamping device includes the bottom plate no. 1 that the level set up, the tight piece of clamp no. 1 that is equipped with relative setting on the bottom plate no. 1 with press from both sides tight piece no. 2, both have the same semi -cylindrical trough - shaped structure, the type that rises is in block to be put including split type type piece and the mounting groove of rising, is used for the shaping muscle on the split type type piece that rises, and the split type type piece that rises is installed in the mounting groove, and split type bottom of rising by the type piece is arranged in and is compressed tightly on the seat to set firmly on the lower surface of bottom plate no. 1 through compressing tightly the seat, buffer spring resetting means ...

HDPE pipe plastic modification method

The invention discloses an HDPE (high-density polyethylene) pipe plastic modification method, which belongs to the field of material preparation, and comprises the following steps: 1, uniformly mixing and stirring 80-100 parts of high-density polyethylene, 20-25 parts of low-density polyethylene and 10-14 parts of polypropylene at the temperature of 240 +/-30 DEG C for 20-30 minutes; step 2, uniformly mixing, cooling to 40 DEG C, adding 30-40 parts of glass fibers, 5-8 parts of aluminum oxide, 2-6 parts of barium sulfate, 4-7 parts of calcium carbonate, 10-15 parts of epoxy resin, 1-2 parts of an antioxidant and 1-2 parts of a defoaming agent into the mixture obtained in the step 1, feeding the mixture into a mixer for mixing, setting the temperature to be 100 +/-10 DEG C, and mixing for 40-50 minutes again; and step 3, crushing and granulating the mixture in the step 2 to obtain modified HDPE pipe plastic, and then feeding the HDPE pipe plastic into an extruder to prepare the HDPE pipe ...

丁二烯-丙烯腈共聚物胶乳加氢制备氢化丁腈共聚物的方法

... 本发明提供一种在具有水溶性的、无取代基的酚、醌、芳胺类凝胶抑制剂存在下，丁二烯-丙烯腈共聚物胶乳与(1)为肼或产生肼的化合物的还原剂，(2)氧化剂，和(3)催化剂进行加氢反应，制备无凝胶的氢化丁腈共聚物的方法。 ...

丁二烯-丙烯腈共聚物胶乳加氢制备氢化丁腈共聚物的方法

A process for preparing non-gel hydrogenated butanenitrile copolymer by hydrogention reaction between the latex of butadiene-acrylonitrile copolymer, diamide or the reduce able to generate diamide, oxidant and catalyst under the existance of non-substitutent water-soluble phenol, quinone or arylamine type gel inhibitor is disclosed.

Construction method of immortalized cells derived from human umbilical cord mesenchymal stem cells and recombinant vector used in construction method

The invention discloses a recombinant vector for constructing immortalized cells derived from human umbilical cord mesenchymal stem cells. The recombinant vector is a GV367 vector of a catalytic subunit gene segment for coding human telomerase inserted between restriction enzyme cutting sites. The invention also provides a construction method of the immortalized cell derived from the human umbilical cord mesenchymal stem cells. The construction method comprises the following steps: constructing a recombinant vector of a catalytic subunit gene segment containing human telomerase; introducing the recombinant vector into human umbilical cord mesenchymal stem cells through a lentivirus system; screening out immortalized cells through selective culture conditions; wherein the recombinant vector is the recombinant vector as described above. The cell line still has better activity, keeps good dryness and stronger multiplication capacity after being subjected to passage for more than 50 generations ...

Construction method of human-derived pulmonary fibrosis chip model

The invention provides a construction method of a human-derived pulmonary fibrosis chip model. The construction method comprises the following steps: (1) constructing a lung chip; (2) confirming the cell growth condition, and inputting a cell fibrosis promoting culture medium containing transforming growth factors into the chip to induce cell fibrosis; and (3) after the transforming growth factor is dynamically perfused for a preset time, obtaining the human-derived pulmonary fibrosis chip model. According to the application, directional culture of extracellular matrixes and various cells in the chip is realized by utilizing a human-derived cell line, meanwhile, microfluid and a gas-liquid interface are integrated, a lung local microenvironment is simulated in a high-fidelity manner, the effect of the lung local microenvironment on occurrence and development of pulmonary fibrosis is highly restored, the characteristics of pulmonary fibrosis diseases are fully represented, and the application ...

Ruler integrated protractor

The invention provides a ruler integrated protractor. The protractor is connected with the ruler at a straight edge position of a hollowed semicircular body; a swinging marking ruler which is used matching with the protractor is installed at the middle of the ruler through a central shaft; a plurality of marking holes are formed in the swinging marking ruler; hollow-out viewing holes are formed in an outer end of the swinging marking ruler and a scale edge of the semicircular body; a holding handle is arranged on a middle surface of the ruler. When the ruler integrated protractor is used, any angle can be selected from the scales of the protractor through the swinging marking ruler and the hollowed viewing holes, a pen point can be inserted to mark or draw out semicircular angles and triangles in various angles through the plurality of marking holes, and the integral protractor is comprehensive in function and convenient to operate due to being connected with the ruler.

Table trolley with adjustable pressing mechanism

A table trolley with an adjustable pressing mechanism relates to the technical field of table trolleys and comprises a trolley body and a plurality of universal wheels arranged at the bottom of the trolley body, side frames are symmetrically and vertically arranged on the two sides of the trolley body, and carrying frames are evenly and transversely arranged on the side frames from top to bottom at intervals. A plurality of part bases used for positioning and placing parts are arranged on each carrier in an array mode, and a pressing mechanism used for pressing and positioning the parts below is correspondingly arranged at the position, above the corresponding part bases, of the bottom of the carrier. Parts are positioned and pressed through the pressing mechanism with the adjustable height, the parts are prevented from jumping and falling in the trolley transportation process, operators can conveniently place the parts to the maximum extent, the trolley manufacturing cost is reduced, and ...

Take bridge of small -size view gate

The utility model belongs to the technical field of the bridge, especially, relate to a bridge that has a small -size view gate that is used for urban medium and small river and channel, including pier and the steel construction manway of setting on the pier, being provided with the gate between two adjacent piers, being provided with water pipeline on the gate, the hydroenergy that lies in gate upper reaches waters is enough through the waters of water pipeline sport to the gate low reaches, the utility model discloses simple structure, it is rationally distributed, and the gate adopts the design of water spray formula, set up water pipeline in that the gate is inside, and water pipeline's water inlet lies in the gate bottom, the delivery port lies in gate downstream face upper portion, utilizes the water head in gate upper reaches waters and low reaches waters, forms water pressure, and the hydroenergy in gate upper reaches waters enough arrives gate low reaches waters through water pipeline ...

Antibiotic antifouling imitative cotton car interior fabric of moisture absorption

The utility model relates to an antibiotic antifouling imitative cotton car interior fabric of moisture absorption, big jacquard fabric is knitted for the machine to the surface fabric, and the yarn of surface fabric prevents through the thin dawn that the low bullet long filament twisting of the cotton polyester fiber of modifying forms, twists with the fingers the sth. Made by twisting to Z, and number of turns scope is 140-180 and twists with the fingers m, 560 10/10cm of warp density, 200-230/10cm of weft density. Carefully the dawn prevents that the low specification that plays the long filament of cotton modified polyester fiber is 260dtex168f. The beneficial effects of the utility model are that: the organizational structure of surface fabric and the material of yarn choose the moisture absorption wet transmitting performance who has improved the surface fabric for use, improved that the surface fabric is felt and the travelling comfort, satisfy people to the growing performance ...

Process for removing hydrocatalyst from unsaturated copolymer

A process for removing the residual noble metal catalyst from the copolymer, especially the butadieneacrylonitrile rubber solution after homogenized and catalytical hydrogenated features that the organic compound containing -NH2 or/and C=S as complexing agent and carboxylic acid as extractant to transfer said catalyst into water-soluble organic matches and make it come in aqueous solution. Its advantage is high removal rate of 98% or more for Rh or 77% or more for Ru.

Medicine for treating cardiovascular and cerebrovascular diseases

The invention relates to a medicine for treating cardiovascular and cerebrovascular diseases, and belongs to the technical field of traditional Chinese medicines. The invention aims at providing the medicine for treating the cardiovascular and cerebrovascular diseases, which has small side effect and obvious therapeutic effect. The invention discloses the medicine for treating the cardiovascular and cerebrovascular diseases, which is characterized in that: the medicine is prepared from the following pharmaceutical raw materials in parts by weight: 800 parts of ginkgo leaves, 500 parts of radix paeoniae alba, 500 parts of liquorice, 500 parts of witloof, 200 parts of radix notoginseng, 100 parts of lychee seeds and 100 parts of lumbricus. The medicine has the following beneficial effects: a pharmaceutical composition in the invention has small side effect and obvious therapeutic effect; when the medicine is adopted, the experimental carotid artery thrombosis time of a rat can be obviously ...