11results about How to "Guaranteed Regularity" patented technology

This application discloses an LED display screen, relating to the field of LED display screen technology. The LED display screen includes a cabinet, LED display units, and an arc adjustment mechanism. The cabinet includes a first frame, a second frame, a first hinge structure, and a second hinge structure. The first hinge structure is rotatably connected between the first and second frames at their first ends, and the second hinge structure is rotatably connected between the second ends of the first and second frames. The LED display units are connected to the first and second hinge structures. The arc adjustment mechanism is located between the first and second frames and is used to adjust and fix the arc of the LED display units. This LED display screen solves the problem that current LED displays cannot achieve flexible angle adjustment while ensuring connection strength and angle consistency.

This invention provides a casting process for fixing markings on high-manganese steel frogs. A support block is fitted between the marking sand mold on the side of the model rail wall and the bottom of the model rail wall within the sand box. The marking sand mold has a special cross-sectional structure to prevent displacement. One side of the marking sand mold is tightly attached to the model rail wall; the lower side is supported and fixed by the support block; and the surrounding area is tightly wrapped with molding sand. After hardening and demolding, the support block area is filled and solidified with molding sand to ensure that the marking sand mold and the model rail wall remain coplanar. This reduces the amount of grinding required due to non-coplanarity between the marking sand mold and the model rail wall, and also standardizes the position of the markings on frogs of the same model. This invention solves the technical problems of marking sand mold displacement and excessive grinding of the markings on the castings; the markings on the cast frogs of the same model are standardized and neat, making it suitable for widespread application.

This utility model discloses a retractable miniature temperature sensor detection head structure, relating to the technical field of temperature sensor detection heads. It includes a housing with a telescopic shell inserted at one end. Inside the housing is a pneumatic assembly for driving the telescopic shell's vertical movement. Inside the telescopic shell is a thermistor element, with a lead wire body on one side of the thermistor element. Inside the housing is a winding assembly to prevent the lead wire body from tangling during the telescopic shell's vertical movement. This utility model uses a pneumatic assembly to drive the detection head's extension and retraction. A sealing ring on the outer circumference of the piston body ensures the housing's internal sealing, preventing gas leakage and insufficient driving force for extension and retraction, thus ensuring stable operation of the extension function. Simultaneously, a limiting ring plate inside the housing prevents the piston body from overtraveling, effectively protecting the structure of each component, reducing wear caused by excessive component movement, and extending the overall device's service life.

This application relates to the technical field of temperature and humidity environment chamber equipment, and in particular to a temperature and humidity environment chamber with adjustable air inlets and outlets. The chamber includes a chassis, within which a ventilation box is installed. The ventilation box has an air outlet panel and a return air panel mounted on it, arranged opposite to each other. The chassis is equipped with an air exchange component for controlling the flow of gas within the ventilation box, and the ventilation box contains an adjustment component for regulating the airflow direction. This application improves the ease of operation of the temperature and humidity environment chamber with adjustable air inlets and outlets.

This invention provides a folding cabinet with a vacuum compression bag, comprising a cabinet body and a vacuum compression bag, the vacuum compression bag including a bag opening. The cabinet body includes an interlayer mechanism, a folding mechanism, and a support mechanism. The interlayer mechanism includes a first interlayer support member and a second interlayer support member. The first interlayer support member includes a first mounting frame and a cover plate, with the bag opening connected to the first mounting frame. The folding mechanism is supported between the first and second interlayer support members and includes an unfolded state, a retracted state, and several folded states. The support mechanism is adapted to continuously provide driving force so that the folding mechanism tends to turn into the unfolded state. In its natural state, the folding structure remains in the unfolded state. When the vacuum compression bag is vacuumed, the folding mechanism can change from the unfolded state to a folded state or a retracted state until it is in force equilibrium. This invention achieves coordinated deformation of the cabinet structure and the bag body through the folding structure, allowing the cabinet body to change synchronously with the volume change of the vacuum compression bag.

The application belongs to the technical field of winding machines, and discloses an automatic wire spool winding machine, which comprises a bottom layer frame, a middle layer frame, a winding roller, a driving assembly, a rotating shaft, the rotating shaft is parallel to the winding roller, a rotating seat is rotationally arranged on the rotating shaft, an installation box is arranged on the rotating seat, a compression roller is rotationally arranged on one side of the installation box close to the winding roller, an opening is formed in the one side of the installation box close to the winding roller, a pushing piece is slidably arranged in the opening along the length direction of the winding roller, a reciprocating assembly is arranged on the installation box, a connecting rod is arranged on one side of the rotating seat close to the winding roller, and a tension spring is arranged between the connecting rod and the bottom layer frame. The tension spring provides a continuous pulling force of the compression roller to the winding roller through the rotating seat, so that the compression roller clamps the wire, and winding loosening and displacement are avoided; the driving assembly drives the winding roller to rotate clockwise to provide power, and the reciprocating assembly drives the pushing piece to reciprocate along the winding roller, so that the wire is uniformly distributed and accumulated. The wire spool edge wire is flush, and the wire coil is more beautiful.

The application provides a chafing dish material forming and cutting device, which comprises a placing plate, a cutting assembly is arranged above the placing plate, the cutting assembly comprises a rectangular frame arranged horizontally and a plurality of cutting frames arranged to move along the length direction of the rectangular frame, the cutting frame comprises two vertical sections sliding through the long axis of the rectangular frame and a horizontal section connected to the bottom ends of the two vertical sections, a cutting knife moving vertically is arranged between the two vertical sections, a first avoiding groove for avoiding the cutting knife is vertically arranged in the middle of the horizontal section, the width of the first avoiding groove is consistent with the width of the cutting knife, the cutting assembly is connected below a rotating disc, the center points of the placing plate and the rectangular frame are on the axis of the rotating disc, and the rotating disc is rotationally connected below a lifting plate arranged to move vertically. The scheme of the application separates the cutting knife from the chafing dish material while cutting the chafing dish material, and also ensures the regularity of the chafing dish material after separation.

The utility model discloses a battery separates conveying device, including the casing, the casing is by first vertical board, second vertical board, third vertical board, fourth vertical board and bottom plate constitutes, second vertical board end fixed with fifth vertical board, the fifth vertical board and fourth vertical board form battery access channel between, the first vertical board and third vertical board between are set up with battery removal channel, the bottom plate top is fixed with the limit stop, the limit stop both sides respectively with first vertical board and second vertical board between form the separate passage, battery access channel bottom is provided with first caterpillar conveyor, battery removal channel bottom is provided with second caterpillar conveyor, still include pushing device. Compared with the prior art, the utility model discloses a limit stop and the first vertical board and the second vertical board form the separate passage, and the cooperation of pushing device, first caterpillar conveyor and second caterpillar conveyor, can divide and convey battery according to the set interval, guarantees the regularity and consistency of battery conveying.

This invention relates to the field of oil and gas drilling equipment manufacturing, and discloses a pneumatic expansion packer for oil and gas wells. The packer includes an upper connector, one end of which is fixedly connected to an exhaust / unsealing valve. A central tube is fixedly connected to the end of the exhaust / unsealing valve away from the upper connector. An expansion cylinder is slidably connected to the inner wall of the central tube. A sealing cylinder is fixedly connected to the end of the expansion cylinder away from the central tube. An installation mechanism includes a mounting pad, which is fixedly connected to the inner wall of the expansion cylinder. A connecting frame is fixedly connected to the top of the mounting pad. By setting up this installation mechanism, when the expansion cylinder is subjected to impact force from tubing vibration, the impact force is transmitted through a friction wheel to a silicone compression cylinder. The compression cylinder initially buffers the vibration through its own elastic expansion and contraction. Then, a buffer rod transmits the remaining pressure to a rubber bladder inside the buffer box. The rubber bladder completely absorbs the vibration pressure, achieving a two-stage flexible buffering of the vibration impact force, thus completely avoiding plastic deformation of the expansion cylinder caused by vibration.