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45results about How to "Easy and fast operation" patented technology

Kit for detecting total polyphenol content in beverage, preparation method of kit and method for detecting total polyphenol content in beverage using kit

The invention provides a kit for detecting the total polyphenol content in beverage, a preparation method of the kit and a method for detecting the total polyphenol content in beverage using the kit, and belongs to the field of food nutrition detection. The kit includes a coloring agent, a color stabilizer and a standard substance. According to the invention, an optimized Folio-Ciocalteu method is adopted; a beverage sample develops color after being subjected to a water bath reaction with a combined reagent at 45 DEG C for 0.5 h, and the color reaction time is reduced; the application of the kit to ultraviolet spectrophotometers and semi-automatic biochemical analyzers is simple, easy to operate and high in sensitivity, and a standard curve is not required, so that the detection time is greatly reduced, especially the application to the semi-automatic biochemical analyzers, the detection result can be read visually, and the detection difficulty is reduced; a plurality of beverage samples can be subjected to coloration and detection at the same time, so that the detection is efficient, accurate and fast, and batch detection is facilitated; therefore, the kit and detection method, provided by the invention, have great application prospects in detecting the total polyphenol content in liquid or solid beverage.
Owner:KUNMING UNIV OF SCI & TECH

Edible oil peroxide value measurement combined reagent and detection method

The invention relates to measurement of peroxide values, and in particular relates to an edible oil peroxide value measurement combined reagent and a detection method. The edible oil peroxide value measurement combined reagent comprises a polarity organic solvent, a reducing agent, a color development reagent and a color development stabilizing agent, wherein the polarity organic solvent comprises ethanol with the mass concentration of 237-710 g/L in percentage by mass; the reducing agent comprises ferrous sulfate with the mass concentration of 1-20 g/L in percentage by weight; the color development reagent is a sulfosalicylic acid solution with the mass concentration of 300-1,000 g/L; and the color development stabilizing agent is a pyridoxamine dihydrochloride solution with the mass concentration of 20-800 g/L. By a colorimetric analysis method, the operation is quick and simple, and interference caused by heating on a detection result is reduced; the types of the needed detection reagents is few, and the reagents are convenient to combine and carry; and the edible oil peroxide value measurement combined reagent can develop and detect a plurality of oil samples at the same time, is uniform in developing, is low in toxicity and even non-toxic, and is safe and environmentally-friendly.
Owner:ZHEJIANG UNIV

Non-pull cord operated venetian blind

A non-pull cord operated Venetian blind includes a blind embodiment having left/right retaining cords led through both lateral sides thereof and fixed to a windowsill at the bottom ends thereof, and a pair of clamps securely sealed at both ends of a lower beam to clamp tight the retaining cords thereby. The clamp is made up of a movable plate and a fixed plate with a spring element attached there-between. A serrated retaining section and a serrated fixing section are disposed at the corresponding inner side of the movable plate and the fixed plate thereof respectively, tightly engaged via the spring element for holding the left/right retaining cords therein in clamping location, and a step-wise coupling section is disposed at the outer side of the fixed plate thereon to securely fix the clamps thereof onto both ends of the lower beam thereby. Thus, the clamps are pushed to the compress spring elements adapted therein and detach the retaining cords there-from so that the blind embodiment is easily adjusted up or down along the retaining cords thereof into a proper position before the pressing force is removed to clamp tight the retaining cords via the clamps and precisely relocate the blind embodiment at the proper position, providing a non-pull cord Venetian blind to effectively protect the safety of children in the household. Besides, a pair of clamping devices with push rods can also be adapted to both ends of the lower beam with the same effect thereof.
Owner:NIEN LESLIE

Fastener for steel pipe scaffold butting

The invention relates to a steel-tube scaffold connecting piece in the construction industry, in particular to a joint locking piece. The structure is characterized in that a half and half open and close conical bolt body is regarded as the main body, the upper and the lower end of which respectively fasten the end of two short vertical posts, the middle part is radially provided with a channel and a port going through a big transverse rod, and both sides of the main body with the end in the horizontal right angle direction are provided with a jacket, a vertical post, an arch surface support plate, a lock hook and a semi-round press plate for insertion and hanging of a small transverse rod during installation. The conic bolt is screwed up and locks tight the vertical post, the big transverse rod; the small transverse rod is inserted and hanged to the vertical post of the jacket, and is chocked by the semi-round press plate. When used as a heavy frame, the fastness and vertical bearing capability of the short vertical post structure totally equal to those of a bowl-type steel-tube scaffold, so as to save the welding cost and is convenient in collective storage and transportation. As a novel steel-tube scaffold, the invention is convenient and fast in operation, safe and reliable, labor intensity saving and application in large scope.
Owner:姜中璋

Vibrating-type seam pressing and jointing integral machine for cement concrete pavement

The invention provides a vibrating-type seam pressing and jointing integral machine for a cement concrete pavement, relating to a seam pressing and jointing machine for a cement concrete pavement. The machine provided by the invention can be used for solving the problem that the construction quality is hard to ensure because seaming and paneling are realized through two processes in the operationprocess of seam pressing and seaming mechanical equipment. The machine is characterized in that a blade is connected to a tool rest, a vibrating upright post is arranged on the tool rest in a penetrating manner, and the left and right sides of the tool rest are provided with bearing pillars; the lower ends of the bearing pillars are connected to a backing plate, and adjusting seats are sleeved onthe bearing pillars; a chain wheel and a handle are arranged on a cross bar; a roller bracket is positioned below a side plate of a main bearing plate; the roller bracket is connected with the side plate of the main bearing plate through a supporting screw and is internally provided with a roller; the main bearing plate is provided with a jointing guard plate, and the side plate of the main bearing plate is internally provided with a spring bracket; and a pushing screw is connected with a joint plate and a pressing plate after passing through the side plate of the main bearing plate and the spring bracket, and a thrust spring is sleeved on the pushing screw. The machine provided by the invention can be used for performing seam pressing and jointing operation on the cement concrete pavement.
Owner:HARBIN INST OF TECH

Polyurethane foam filled ring foaming mold

ActiveCN111186054AReduce structural difficultyAvoid damageAnatomyMold removal
The invention provides a polyurethane foam filled ring foaming mold. The polyurethane foam filled ring foaming mold comprises a female mold, a male mold and an injection structure, wherein the femalemold comprises a left female mold and a right female mold, after the left female mold and the right female mold are assembled, a cavity is formed inside the left female mold and the right female mold,the left female mold and the right female mold are detachably connected, the male mold comprises an upper male mold and a lower male mold, after the upper male mold and the lower male mold are assembled, the upper male mold and the lower male mold cooperate with the cavity of the female mold to define a mold cavity, the mold cavity is suitable for formation of the polyurethane foam filled ring, and the injection structure is arranged on the female mold and suitable for injecting a polyurethane foam material into the mold cavity. According to the polyurethane foam filled ring foaming mold, thefemale mold and the male mold both can be smoothly detached, during demolding, it can be avoided that demolding directly acts on the product, it is avoided that prying, beating and other operation damage the product, and an injection opening can be rapidly sealed after the foam material forms for a certain extent; and the appearance of the product is smooth, and no redundant structure exists.
Owner:北京玻钢院复合材料有限公司

A locking structure for connector fitting insertion

The invention discloses a locking structure for connector fitting insertion. The locking structure is characterized in that the structure comprises a clamping slot mechanism arranged on a male end rubber core or a female end rubber core, an elastic buckling component arranged on the female end rubber core or the male end rubber core and a lock sleeve which sleeves the outside of the rubber core where the elastic buckling component is located, wherein a pair of anti-drop convex ribs connected with the rubber core where the elastic buckling component is located are arranged on the inner wall of the lock sleeve; and a pair of pushing bosses cooperating with the elastic buckling component is also arranged on the inner wall of the lock sleeve. The elastic buckling component is a high and low double-layer U-shaped spring sheet; the spring sheet of the lower layer is inserted and matched with the slot mechanism; and the spring sheet of the upper layer is matched with the pushing bosses in a buckled and inserted mode. According to the locking structure for connector fitting insertion, through cooperation between the elastic buckling component and the lock sleeve, rapid insertion and pulling between the male and the female rubber cores are realized; no tool needs to be used; and the operation is convenient and fast.
Owner:苏州丰年科技股份有限公司

High-rigidity wear-resistant nylon wheel forming device

The invention discloses a high-rigidity wear-resistant nylon wheel forming device which comprises a lower die, an upper die, a rotation drive mechanism supported on the bottom part of the lower die, and a pressing mechanism arranged above the upper die. The rotation drive mechanism comprises a first motor and a rotary plate connected with an output shaft of the first motor; the bottom part of thelower die is coaxially and fixedly connected to the rotary plate; a lower clamping plate is rotatably arranged on the outer wall of the lower die in a sleeving way; the upper die is movably arranged above the lower die; the upper die and the lower die are connected through a guiding mechanism; a cavity for forming a nylon wheel is formed between the upper die and the lower die; a through hole coaxial to the rotary plate is formed in a shell of the upper die; two annular limiting lugs are distributed in the through hole along the axial direction; and the pressing mechanism comprises a pressingplate, a material injection pipe fixed onto the pressing plate, and an upper clamping plate fixed to the bottom part of the pressing plate. The high-rigidity wear-resistant nylon wheel forming deviceprovided by the invention is simple in structure, convenient to use during die opening and closing, capable of being rotated as a whole after the upper die and the lower die are formed, used for forming the nylon wheel by utilizing a centrifugal force, ingenious in structure design, and high in working efficiency.
Owner:金寨宏伟新材料有限公司

Manual vacuum valve operation mechanism used for nuclear

The invention relates to the technical field of vacuum valve operation and particularly discloses a manual vacuum valve operation mechanism used for the nuclear. In the operation mechanism, the right side of a box body of a cylindrical structure is sealed through a flange assembly, a shaft is fixed inside the box body through a shaft sleeve arranged on a middle hole in the flange assembly on the right side, and the shaft is made to be connected with a sliding block assembly right side structure threaded pair arranged in the box body in a matched manner; the right side structure in the sliding block assembly sleeves the inside of a left side structure, and a disc spring installed between the right side structure and the left side structure makes the right side structure clamped in the left side structure be relatively compressed relative to the left side structure; and the lower end of the sliding block assembly right side structure is provided with a hole matched with the end of a lower valve body level assembly, and leftwards and rightwards movement of the sliding block assembly drives the end of the lower valve body level assembly to move leftwards and rightwards. According to the manual vacuum valve operation structure, the connection mode of the sliding block assembly and a transmission shaft can be utilized, a valve core is manually controlled to perform valve operation of horizontal movement or swing movement and sealing, operation is convenient and fast, and labor is saved.
Owner:中核第七研究设计院有限公司

Vibrating-type seam pressing and jointing integral machine for cement concrete pavement

The invention provides a vibrating-type seam pressing and jointing integral machine for a cement concrete pavement, relating to a seam pressing and jointing machine for a cement concrete pavement. The machine provided by the invention can be used for solving the problem that the construction quality is hard to ensure because seaming and paneling are realized through two processes in the operationprocess of seam pressing and seaming mechanical equipment. The machine is characterized in that a blade is connected to a tool rest, a vibrating upright post is arranged on the tool rest in a penetrating manner, and the left and right sides of the tool rest are provided with bearing pillars; the lower ends of the bearing pillars are connected to a backing plate, and adjusting seats are sleeved onthe bearing pillars; a chain wheel and a handle are arranged on a cross bar; a roller bracket is positioned below a side plate of a main bearing plate; the roller bracket is connected with the side plate of the main bearing plate through a supporting screw and is internally provided with a roller; the main bearing plate is provided with a jointing guard plate, and the side plate of the main bearing plate is internally provided with a spring bracket; and a pushing screw is connected with a joint plate and a pressing plate after passing through the side plate of the main bearing plate and the spring bracket, and a thrust spring is sleeved on the pushing screw. The machine provided by the invention can be used for performing seam pressing and jointing operation on the cement concrete pavement.
Owner:HARBIN INST OF TECH

Upper plate frame of photoetching machine

The invention discloses an upper plate frame of a photoetching machine. The upper plate frame comprises a connecting plate and two sliding blocks, and a limiting groove is formed in the bottom of theconnecting plate; two mounting blocks are connected into the limiting groove in a sliding manner; a transmission mechanism is arranged between the two mounting blocks and the limiting groove; and thetwo sliding blocks are each provided with a mounting groove. The two mounting blocks extend into the mounting grooves in the same side correspondingly. The two mounting grooves are each internally provided with two clamping grooves, the two clamping grooves are each internally provided with a pushing mechanism, clamping mechanisms are arranged between the two mounting blocks and the clamping grooves in the same side, the upper end of the connecting plate is provided with an extending groove, and the two extending grooves are each internally provided with an extending mechanism connected with the mounting block on the same side. The upper plate frame is reasonable in structure, capable of achieving rapid mounting and dismounting between the connecting plate and the sliding block, easy and rapid to operate, sufficient in stability, capable of adjusting the size of the plate face of the connecting plate, capable of conducting more stable supporting, capable of being suitable for differentrails and good in practicability.
Owner:ADVANCED DIGITAL SCREEN SYST INC

Comprehensive monitoring and protecting device for traction power supply of urban rail transit

The invention discloses an urban rail transit traction power supply comprehensive monitoring protection device, and relates to the technical field of monitoring protection. The comprehensive monitoring and protecting device for the traction power supply of the urban rail transit comprises a main body device, the main body device comprises a shell, a monitoring device is arranged in the shell and comprises a base, the lower surface of the base is fixedly connected with the middle of the lower inner wall of the shell, and vertical plates are fixedly connected to the left side and the right side of the upper surface of the base; the upper ends of the two vertical plates jointly penetrate through and are rotationally connected with a main column through a bearing, the outer side of the main column is fixedly sleeved with a rotating cylinder, a cylinder groove is formed in the surface of the rotating cylinder, the cylinder groove is annular and obliquely formed, a groove column is slidably inserted into the cylinder groove and matched with the cylinder groove, and the middles of the faces, close to each other, of the two vertical plates are jointly connected with a lower plate. The comprehensive monitoring and protecting device for the traction power supply of the urban rail transit can detect and protect the traction power supply system of the urban rail transit in real time.
Owner:NANJING VOCATIONAL UNIV OF IND TECH

Quenching furnace device capable of realizing continuous quenching of multiple samples

The invention relates to a quenching furnace device capable of realizing continuous quenching of multiple samples. The quenching furnace device comprises an upper cover, a furnace tube, a lower cover, a base and a plurality of hooks, the upper cover and the lower cover are detachably and hermetically connected with the furnace tube respectively; the upper cover comprises an upper cover shell and a rotating body, the rotating body comprises a rotatable part and a fixed part, a circle of groove is formed in the upper surface of the fixed part, and a falling notch is formed in the groove; a circle of convex edge is arranged at the bottom of the rotatable part, and a plurality of limiting notches penetrating through the upper surface of the rotatable part are formed in the convex edge; the upper surface of the rotatable part is fixedly connected with a force transmission column, the multiple hooks are hung on the edge of the groove, the hooks are located in the limiting notches in a one-to-one correspondence mode, and the quenching medium container is right opposite to the lower portion of the furnace tube. Through the arrangement of the rotating body, a plurality of groups of samples can be hung at the same time, and each group of samples fall off from the falling notch, so that continuous quenching is realized, and the efficiency of the whole quenching process is greatly improved.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS +2
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