8results about How to "Strong use stability" patented technology

The invention discloses a polyurethane emulsion for UV (ultraviolet) ink-jet digital printing as well as a preparation method and application of the polyurethane emulsion. The preparation method of the polyether type polyurethane emulsion comprises the following steps: adding polyether polyol, isocyanate, a catalyst and polyfunctional group acrylate into an organic solvent, mixing and uniformly stirring, heating to a first temperature, and stirring for reaction to obtain a polyether type polyurethane solution; and cooling to a second temperature, sequentially adding deionized water, adjusting the pH value, and uniformly mixing to obtain the water-based polyether polyurethane emulsion. The low-polarity polyether polyurethane is selected as a main body material, the polyfunctional group acrylate is introduced to increase the binding force between the ink and the main body, the compatibility among the components can be improved, the leveling property of the UV ink can be improved, a high-quality cured film layer can be formed without additionally adding a leveling agent, the internal stress during UV curing film forming is reduced, and the UV curing film forming quality is improved. Therefore, surface defects such as white points and pinholes caused by shrinkage of film holes in the UV curing process are avoided.

The utility model discloses a foldable fire extinguisher box which comprises a base and a foldable box body, the foldable box body is arranged above the base, lower end plates are fixedly connected to the two ends of the lower portion of the base, and lower side plates are fixedly connected to the two sides of the lower portion of the base. The two sides of the bottom of the base are each fixedly connected with two rotating shaft seats, and the bottoms of the two sides of the base are each rotationally connected with a rotating support through the two rotating shaft seats. The rotating support and the wheel body are matched with the extension spring and the limiting mechanism, the wheel assembly can be folded to the lower portion of the base during transportation and long-time placement, and the storage and transportation space is reduced under the condition that it is guaranteed that the overall trafficability is enhanced through the large-diameter rolling wheels.

The utility model discloses a plastic floor made of a silicon PU material, and relates to the technical field of plastic floors. The modular mounting structure comprises a plurality of modular mounting plates, the modular mounting plates are sequentially arranged and tightly attached to one another, arc-shaped grooves are formed in the four corners of each modular mounting plate, a circular hole is formed by every four adjacent arc-shaped grooves, two grooves are formed in the inner wall of each arc-shaped groove, and the arc-shaped grooves are formed in the inner wall of each arc-shaped groove. Every two adjacent grooves are matched and combined to form a clamping groove. According to the plastic floor, the modular mounting plates are adopted, the floor is quickly laid through mutual splicing of the multiple mounting plates, the fixing effect with the floor is enhanced through the fixers, it is ensured that the fixing and mounting effects of the modular mounting plates are good, the fixers are difficult to disassemble at will due to the design of the abutting screws, and the fixing effect is good. The use stability is high, internal parts are simple in structure, machining and manufacturing are convenient, and the machining cost is low.

The utility model discloses a pressure relief device for a coffee machine and the coffee machine, relates to the technical field of coffee machines, and solves the problems that blockage is easy to occur when a common electromagnetic valve is adopted and the cost is high when a special electromagnetic valve is adopted. The pressure relief device comprises a pressure relief shaft, a sealing chamber and a pressure relief chamber; the sealing chamber and the pressure relief chamber are sequentially connected, one end of the pressure relief shaft extends to the outside of the side, away from the pressure relief chamber, of the sealing chamber, and the other end of the pressure relief shaft moves between the sealing chamber and the pressure relief chamber in the axial direction of the pressure relief shaft so as to connect or disconnect the sealing chamber and the pressure relief chamber; the sealing cavity is connected with a water inlet channel and a water outlet channel, and the pressure relief cavity is connected with a pressure relief channel. The device is simple in structure, stable in operation, not prone to blockage and low in maintenance cost.

The frying and baking machine comprises an upper baking tray assembly, the upper baking tray assembly comprises a cover body and a heating pipe, the upper baking tray assembly further comprises a filter screen, the filter screen is detachably installed in the cover body, the filter screen and the cover body define a containing cavity, the heating pipe is arranged in the containing cavity, the filter screen is provided with a fixing buckle, and the cover body is provided with a detachable assembly. The detachable assembly comprises a movable buckle and a button, one end of the button is exposed out of the cover body, the other end of the button is connected with the movable buckle to drive the movable buckle, the movable buckle is rotatably provided with a first position and a second position, when the movable buckle is located at the first position, the movable buckle is in locking fit with the fixed buckle, and when the movable buckle is located at the second position, the movable buckle is in locking fit with the fixed buckle. And the movable buckle is separated from the fixed buckle. According to the frying and baking machine, the filter screen can reduce the blocking effect on heat radiation of the heating pipe, so that heat of the heating pipe fully acts on food materials; the filter screen is easy to disassemble and assemble through the detachable assembly, the requirement for a user is low, and the use experience of the user can be improved.

This utility model discloses a down standard sieve, including a base and a support plate. By employing a support plate and a limiting plate, the standard sieve can be placed into the receiving slot of the support plate before use. Rotating the support plate allows for the stacking of multiple standard sieves. After rotation, the support plate is fixed to the limiting plate via a surface connector, preventing detachment during operation and ensuring stability. Furthermore, there are no direct interlocking operations between the multiple support plates. Therefore, when needing to retrieve or place standard sieves in different positions, only the corresponding support plate needs to be rotated, without affecting other unused standard sieves. This effectively reduces the impact during retrieval and ensures optimal performance. The fixed position of the support plate also reduces the difficulty of stacking the standard sieves, offering advantages such as low stacking difficulty, high stacking stability, and minimal impact during retrieval.

The present invention belongs to the field of separation technology, and particularly relates to a crude distillation tower, including a tower plate and a tower shell, wherein the tower plate includes two rotating plates 1 connected in rotation, each rotating plate 1 is vertically fixed with a partition rod, the lower end of the tower shell is provided with a manhole 1, and a plurality of rotating rods rotating up and down are installed in the tower shell; a folding plate is provided in the tower shell, and the folding plate includes two rotating plates 2 connected in rotation, the rotating plate 2 is assembled in the tower shell through a circular shaft, the circular shaft is assembled in the tower shell with an up and down guide slide, and the folding plate has a long hole for the circular shaft to reciprocate in a direction parallel to the top surface of the folding plate; a moving plate that moves up and down is provided below the folding plate, the tower plate is placed on the folding plate through the manhole 1, the moving plate is moved up so that the folding plate and the tower plate are unfolded to a horizontal level and moved up, and the folding plate has a groove 3 for the rotating rod to vertically pass through. The present invention can solve the technical problems that the staff need to enter the tower shell to install the tower plate and the tower plate installation is troublesome.

The present invention discloses a tool-free quick-separation flexographic printing mechanism, which relates to the technical field of flexographic printing equipment, including a machine body and a printing plate, wherein a printing plate is installed inside the machine body, an ink fountain is installed on one side of the machine body, a rubber roller is connected to the inner side surface of the ink fountain, a cross bar is connected to the bottom end of the ink fountain, a second cylinder is connected to the bottom end of the cross bar, a stepper motor is installed on the outer surface of the machine body, a driving shaft is connected to the output end of the stepper motor, a moving roller is also installed inside the machine body, a second gear is connected to the side surface of the moving roller, a first gear is connected to one end of the driving shaft, the first gear is meshed and connected to the second gear, an anilox roller is arranged on the side of the printing plate, the anilox roller is adapted to the rubber roller, and the bottom end of the printing plate is connected to the first cylinder. The present invention discloses a tool-free quick-separation flexographic printing mechanism, wherein the bottom end of the printing plate is connected to the first cylinder, the bottom end of the ink fountain is connected to the second cylinder, the bottom end of the scraper is connected to the third cylinder, the three groups of cylinders independently control the corresponding operating mechanisms, the flexographic printing mechanism is separated, and the operation is simple.