31results about How to "Operation short answer" patented technology

The invention provides a detection method of total phosphorus content in water. The detection method comprises the following steps: (1) determining the absorbance of a phosphate standard solution by adopting a spectrophotometric method and drawing a working curve; (2) providing a water body test sample to be detected and adding a potassium persulfate solution into the water body test sample to be detected; carrying out microwave sealed digestion; oxidizing all total phosphorus in the water body test sample to be detected into orthophosphate, so as to obtain a digestion solution; (3) adding ascorbic acid into the digestion solution and uniformly mixing for 30s to 60s; adding a molybdate solution and carrying out color development reaction to obtain a reaction solution; (4) providing a blank water sample and referring to operation of steps (2) and (3) to obtain a blank reaction solution; (5) carrying out spectrophotometric absorbance determination on the reaction solution and the blank water sample to obtain test sample absorbance and blank absorbance respectively; referring to the working curve and calculating to obtain the total phosphorus content in the water body test sample to be detected.

The invention discloses a calibration method of an optical fiber grating pressure sensor, comprising the following steps: placing the optical fiber grating pressure sensor to be calibrated in a universal testing machine, and carrying out three full-scale preloads; connecting the optical fiber grating pressure sensor to be calibrated to a demodulator instrument, when it drops to no-load, the demodulator records the initial wavelength value; set the position of all pressure detection points of the calibrated fiber grating pressure sensor, and use the universal testing machine to apply pressure to it, and the demodulator records synchronously with each The wavelength value corresponding to the pressure detection point; the standard pressure sensor carried by the universal testing machine records the actual pressure value applied at each pressure detection point, and sends it to the host computer data processing unit in real time; repeat the above steps three times, and the demodulator records All wavelength values ​​are sent to the host computer data processing unit in real time, and the sensitivity, fitting error, linearity indication error, zero return error and repeatability index of the calibrated fiber grating pressure sensor are calculated.

The invention relates to the technical field of compound machines, in particular to a compound machine winding device which comprises a machine body, wherein a transfer part is rotationally connected into the middle of the machine body, and four groups of station areas are arranged on the transfer part at equal angles. By controlling the transfer part to rotate by 90 degrees every time, a paper tube on an inflation station is transferred to a winding station, the paper tube wound on the winding station is transferred to a deflation station, the paper tube wound on the deflation station is transferred to an unwinding station, and the empty station area is transferred to the inflation station, so that the paper tube can be clamped. Through cooperation of an inflation mechanism, a first driving mechanism, a deflation mechanism, a roll-down mechanism and a paper tube feeding mechanism, the paper tube is clamped in the inflation station, the paper tube at a roll-up station rotates at a low speed to be rolled up, a left inflatable shaft and a right inflatable shaft at the deflation station are deflated, and the rolled paper tube at the roll-down station is taken down, so that the automation degree is high, operation is easy, consumed time is short, and therefore, the overall winding efficiency is improved.

The invention belongs to the technical field of organic synthesis, and particularly relates to a novel method for preparing aliphatic tricarbonitrile and the aliphatic tricarbonitrile prepared by thenovel method. The novel method for preparing aliphatic tricarbonitrile in the invention comprises the following step: removing COOCbHcXd from a compound II to obtain aliphatic tricarbonitrile. The structure formula of the compound II is as described in the specification; and in the structure formula, a is an integer from 3 to 12, b is greater than or equal to 1, c is greater than or equal to 1, dis greater than or equal to 0, e is 2, and X is a heteroatom. The method is simple to operate, uses easily available raw materials, realizes environmental protection, has great implementation value and social and economic benefits, overcomes the safety problems of aliphatic trinitrile preparation under the condition of sodium in a traditional process, and is high in yield and product purity.

The invention discloses a yarn dyeing device. The yarn dyeing device comprises a first supporting frame, a drying box body and a control box; a first winding roller is rotationally connected to the first supporting frame; a scrap removing box is fixed to a supporting plate; a stirring assembly is fixed to a first dyeing box; an air drying box communicates with a storage groove through a discharging opening; a stirring mechanism is fixed to a second dyeing box; a second electric telescopic rod is fixed to the inner wall of the right side of the second dyeing box; an auxiliary drying assembly is fixed to the inner wall of the right side of the second dyeing box; an ironing assembly is fixed to the right side of the drying box body; and the second dyeing box communicates with the drying box body and the storage groove through a second water conveying pipe. The yarn dyeing device has the advantages that scraps can be removed before dyeing, dyeing uniformity can be guaranteed, dye waste can be avoided, dried yarn can be ironed, and a used dye box can be automatically cleaned.

The present invention relates to the field of cleaning equipment, in particular to a tunnel dome cleaning device, which includes a fuselage and an operating chamber provided in the top wall of the fuselage. The bottom wall of the operating chamber is fixed with front and rear symmetrical fixing seats. A support block is arranged to rotate between the two fixed seats, a groove is arranged in the left end wall of the support block, a first rotating shaft is rotatably arranged in the groove, and the front and rear ends of the first rotating shaft are The groove runs through the groove and the end is fixedly connected with the fixed seat. The outer surface of the first rotating shaft in the groove is fixedly arranged on the first worm wheel. The tunnel dome cleaning device provided by the present invention can realize the cleaning of the tunnel dome. For the automatic cleaning of the dome, the equipment is equipped with a fixed device that can be extended and stored. The volume of the fixed device is small after storage, which avoids the problem of ultra-wide and over-limited equipment when moving on the road. The equipment of the present invention can move independently and is easy to move. The operation is simple, the cleaning efficiency is high, and it is convenient for production and promotion.

The invention discloses a medicine spraying system used in the respiratory medicine. The system comprises a first frame body, a second frame body, a holding device, a pushing device, a fixing device and a fixing bar, the first frame body is provided with a first through hole and a first fixing ring, the second frame body is provided with a second fixing ring and a third frame body, the pushing device comprises a pushing block, a connecting rod, a pushing plate, a first sealing ring, a first pushing rod, a second sealing ring, a third sealing ring and a first spring, the holding device comprises a holding rod, a first cross rod, a first support, a fixing frame and a second spring, the fixing device comprises a second cross rod, a second support, a third support, a first inclined rod, a cushion block, a third cross rod, a first vertical rod and a fourth cross rod, one end of the holding rod is fixedly connected with the left surface of the pushing rod, the other end of the holding rod is fixedly connected with the left end of the first cross rod, and the first support is in an L shape. By means of the system, liquid medicine can be sprayed to the throat position conveniently, the operation is simple and fast, the treatment efficiency is improved, and the valuable time of a patient is saved.

The invention discloses a graphene far infrared physical therapy patch with a heating function. The patch comprises a patch body, a graphene physical therapy main body and an elastic fixing band, endsurfaces of two ends of the patch body are fixedly provided with connecting bands, the top end of the connecting band at the end surface of one side of the patch body is provided with a loop of a hookand loop fastener, the top end of the connecting band at the end surface of the other end of the patch body is connected with a hook of the hook and loop fastener, the middle of the connecting band at end surface of the other side of the patch body is provided with a hook band, a groove is formed in the end surface of the interior of the patch body, insertion grooves are formed in two sides of the groove, fixing plates are fixed on two sides, positioned at the end wall of the patch body, at outer ends of the insertion grooves, the graphene physical therapy main body is slidably inserted intothe insertion grooves through a sliding plate, the elastic fixing band is bonded at the middle position of the rear end surface of the patch body, a hook is connected to one end, far away from the patch body, of the elastic fixing band. The graphene far infrared physical therapy patch disclosed by the invention has the advantages of infrared physical therapy, portability, convenience in regulation, stability in wearing and the like, the operation is simple and convenient.

The invention discloses an anodic oxide film dyeing stabilizer and an anodic oxide film dyeing method.The anodic oxide film dyeing stabilizer comprises 80-150 g / L of a pH value buffering agent, 0.1-80 g / L of a mildew preventive, 10-200 g / L of a dye leveler and the balance water, the pH value buffering agent, the mildew preventive and the dye leveler are compounded for use, and under the specific proportion and dosage, the pH value buffering agent, the mildew preventive and the dye leveler act synergistically, so that the dyeing effect of the anodic oxide film is improved. The anodic oxide film dyeing stabilizer has a uniform dyeing function, a stable pH value and an anti-mildew function at the same time, fills the market blank, is convenient to use, reduces the management difficulty of dye liquor of a production line, improves the anodic oxide film dyeing efficiency, and reduces the reject ratio of uneven dyeing on the surface of a workpiece.

The invention relates to a tire mold character engraving machine. The tire mold character engraving machine comprises a base. A vertical frame is fixedly connected to one side of the base, and a character engraving head is arranged on the upper side of the vertical frame. A receiving disc is arranged on the upper side of the base. A feeding platform is fixedly connected with one side of the base,and a material push mechanism is arranged on one side of the feeding platform. At least three sliding grooves are evenly formed in the upper side of the receiving disc, threaded rods are connected with the lower sides of the corresponding sliding grooves of the receiving disc in a rotating mode, clamping blocks are connected with the interiors of the sliding grooves in a sliding mode and connectedto the corresponding threaded rods in a threaded mode, and first bevel gears are fixedly connected with the lower ends of the threaded rods. Reversing shafts are connected with the portions, corresponding to the threaded rods, of the receiving disc in a rotating mode, second bevel gears are fixedly connected with the upper ends of the reversing shafts, third bevel gears are fixedly connected withthe lower ends of the reversing shafts, and a fourth bevel gear is further connected with the middle of the receiving disc in a rotating mode. A material receiving platform is fixedly connected withthe side, far away from the vertical frame, of the base, and a material return mechanism is further arranged on the side, close to the base, of the vertical frame. The tire mold character engraving machine has the effects that the labor intensity of an operator can be reduced, operation is easy, and utilization is convenient.

The invention relates to a method for testing liquid surface energy and its components, belonging to the technical field of surface physics and chemistry. Based on Young's equation, the method calculates the surface energy of the liquid and its components by testing the contact angle between the liquid and the probe solid. By selecting a suitable probe solid and optimizing its calculation formula, the method is simple to operate, with a small amount of calculation, and the experiment The error is small, and it can be widely used in the test of various liquid surface energies and their components.

The present invention relates to an overturning test device. The device comprises a rack, one side, in a length direction of the rack, of the rack is provided with a roller line, the other side thereof is provided with a detection device, the middle portion of the rack is provided with an overturning table capable of being cooperated on the roller line and rotating above the detection device, theroller line comprises three sets of rollers arranged at intervals in the width direction of the rack, the overturning table comprises an object carrying plate, a location cross bar fixed on the objectcarrying plate, two overturning brace rods slidingly connected with the bottom portion of the object carrying plate and a drive mechanism connected with the overturning brace rods, any one of the brace rods can be arranged at a gap between two adjacent sets of rollers when being overturned to a horizontal position, and the overturning brace rods are provided with movement mechanisms connected with the object carrying plate. The overturning test device can achieve online detection of a water heater and employs mechanical operation to complete overturning of the water heater and inflation of agas insertion nozzle so as to effectively reduce the labor intensity and improve the work efficiency, and the operation is simple, the usage is convenient, and the automation degree is high.

The invention belongs to the field of shower gel production, and particularly relates to a pouring device for shower gel production. The pouring device comprises a base, limiting shells are fixedly welded on two sides of the top of the base, a supporting plate is fixedly mounted on one side of the top of the base, a lifting plate is connected to the inner wall of the supporting plate, a first fixing plate and a second fixing plate are fixedly mounted on the two sides of the surface of the lifting plate correspondingly, a servo motor is fixedly mounted on one side of the surface of the lifting plate, a transmission shaft of a servo motor penetrates through the second fixing plate and is fixedly connected with a winding shaft, and the transmission shaft of the servo motor penetrates through the second fixing plate and is rotationally connected through a first bearing. Compared with a specific pouring device, the designed device is low in cost, can be combined with a forklift and is easy to operate, meanwhile, when the device is not used, the forklift can move the device to a designated area, and therefore space is effectively saved.

The invention relates to the technical field of engineering construction, in particular to a hanging basket system for erecting prefabricated beams, including a construction body and a track pad beam. There is a buckle wheel, and the top of the diamond-shaped main truss is fixedly connected with a longitudinal limit device, and one end of the longitudinal limit device is fixedly connected with a connecting device. The longitudinal limit device includes a pressure beam plate, a reinforcing beam, a vertical beam, a beam, and a roller , limit plate, fixed frame and sleeve, the front side of the top of the diamond-shaped main truss is fixedly connected with a pressure beam plate, and one end of the pressure beam plate is fixedly connected with a vertical beam. In the present invention, by setting the pressure beam plate and the sleeve After they are connected together, the limit plate is in contact with one end of the construction body, and the pressure beam plate is fixed to the rhombus main truss, so that the fixed limit of the rhombus main truss is realized through the pressure beam plate.

The invention discloses a medicine spraying system used in the respiratory medicine. The system comprises a first frame body, a second frame body, a holding device, a pushing device, a fixing device and a fixing bar, the first frame body is provided with a first through hole and a first fixing ring, the second frame body is provided with a second fixing ring and a third frame body, the pushing device comprises a pushing block, a connecting rod, a pushing plate, a first sealing ring, a first pushing rod, a second sealing ring, a third sealing ring and a first spring, the holding device comprises a holding rod, a first cross rod, a first support, a fixing frame and a second spring, the fixing device comprises a second cross rod, a second support, a third support, a first inclined rod, a cushion block, a third cross rod, a first vertical rod and a fourth cross rod, one end of the holding rod is fixedly connected with the left surface of the pushing rod, the other end of the holding rod is fixedly connected with the left end of the first cross rod, and the first support is in an L shape. By means of the system, liquid medicine can be sprayed to the throat position conveniently, the operation is simple and fast, the treatment efficiency is improved, and the valuable time of a patient is saved.

The invention discloses a cutting table for producing rectangular glass, which comprises a working table, a cutting device, a clamping assembly and an adjusting assembly; the bottom of the working table is provided with supporting legs; the cutting device is installed on the top of the working table , the cutting device includes a fixed rod, a rotating rod, a spring, a movable rod and a motor; the clamping assembly includes a fixed clamping plate and a movable clamping plate; Screw rod and operation plate. The invention can cut out rectangular glass products at one time without performing multiple cuts or adjusting the driving direction of the cutting knife, thereby reducing the amount of operation and greatly improving work efficiency.

The invention relates to a method for recovering petrochemical engineering output gases with advantages of strong applicability, low energy consumption and high product purity. The method has excellent wide applicability, is applicable to gas by-products produced in petrochemical processing procedures such as catalytic cracking, pyrolysis, catalytic reforming, isomerization and the like, and realizes high-efficiency recovery of hydrogen, carbon monoxide, methane, ethylene, ethane and the like in chemical gases. Moreover, absorbents and refrigerants are recycled, and the economic value is high.

The invention belongs to the field of bullet train safety protection and provides a novel anti-scalding tray for bullet trains. The novel anti-scalding tray comprises a sundry placement tray body anda circular cup fixing device and has advantages of small size, low cost, simplicity in operation, easiness in folding, scalding prevention and the like. By arrangement of torsion springs and hinges, afunction of folding is realized, the floor space is reduced, and accordingly bullet train space is saved. A circular rotating door and a circular bottom plate are connected through a double-cam connection rod, semicircular rotating doors are driven to move circularly around the torsion springs and the hinges when the circular cup fixing device is pressed by a cup from top to bottom, and rotatingcam devices are driven to move outwards when the circular rotating door rotates, so that a distance between the circular bottom plate and the sundry placement tray body is increased, a cup fixing areais increased, and scalding caused by cup tilting in shaking of the bullet trains is avoided. In addition, the circular bottom plate and the sundry placement tray body are connected through the circular rotating door.

The present invention relates to the technical field of composite machines, in particular to a winding device of a composite machine, which includes a machine body, a transfer part is rotatably connected in the middle of the body, and four sets of work station areas are arranged at equal angles on the transfer part; the present invention controls each transfer part Rotate 90° each time, transfer the paper tube of the inflating station to the winding station, transfer the rewound paper tube of the rewinding station to the deflation station, and transfer the rewinded paper cylinder of the deflation station The cylinder runs to the unwinding station and transfers the empty station area to the inflating station for clamping the paper cylinder, and through the inflating mechanism, the first driving mechanism, the deflation mechanism, the unwinding mechanism and the paper cylinder mechanism Cooperate to realize clamping the paper tube in the inflating station, rewinding the paper tube at the winding station at a slow speed, deflating the left and right air shafts of the deflation station, and turning the The unwinding station removes the rewound paper tube, which has a high degree of automation, simple operation and less time-consuming, thus improving the overall rewinding efficiency.

The invention discloses an engineering pipe cleaning and desilting device. The device comprises a baseplate, a support device, an electric cylinder device, a positioning device, a bracket device, a pushing device, a fixing device, a first cleaning device and a second cleaning device; the baseplate is provided with a first support block and a first roller; the support device includes a first support rod, a first spring, a second spring and a first bent rod; the electric cylinder device includes a first electric cylinder, a first pushing rod and a first transverse plate; the positioning device includes a first fixed block, a buffer block, a first positioning frame, a first fixed rod and a third spring; the bracket device includes a second transverse plate, a second positioning frame, a balance block, a first bracket and a second bracket; the pushing device includes a second electric cylinder, a second pushing rod, a fourth spring, a first vertical rod, a second bent rod, a third bracket and a second fixed rod; and the fixing device includes a first cross bar, a first inclined rod, a movable frame, a movable plate and a second inclined rod. The engineering pipe cleaning and desilting device can efficiently clean and desilt pipes, and guarantees cleanness of the pipes.