8results about How to "Press down smoothly" patented technology

The utility model provides a processing device for zipper production, and belongs to the technical field of zipper production. The machining device for zipper production comprises a grinding machine and a machining stabilizing mechanism, grinding rollers are installed at the top of the grinding machine and the top of the inner wall, anti-skid bases are installed at the four corners of the bottom of the grinding machine, a stabilizing frame is fixedly connected to the two sides of the top of the grinding machine, and stabilizing plates are movably connected to the two sides of the inner side of the stabilizing frame; the stabilizing rods are movably connected to the two sides of the outer side of the stabilizing frame, by arranging the machining stabilizing mechanism, a medium for limiting and stabilizing movement of an external zipper can be formed at the top of the grinding machine, and the zipper is pressed down and stabilized while the movement limiting and stabilizing are conducted, so that the phenomenon that when the grinding machine is matched with a grinding roller to grind and deburr the zipper, the zipper is damaged is avoided. Therefore, the grinding stability and the grinding effect of the grinding machine and the grinding roller are improved.

An installation box body is fixedly installed on an installation platform, an opening is formed in the upper portion of the installation box body, a clamping box clamped in a sliding mode is arranged on the side face of the installation box body, a positioning structure is arranged on the opposite side of the installation box body, a clamping groove for vertically clamping the particulate matter sampling head is formed in the clamping box, and the particulate matter sampling head is arranged in the clamping groove. The size of the opening is the same as the size of the clamping groove, a movable supporting table is movably mounted on the clamping box and located in the clamping groove, a cutting structure is arranged on the side wall of the mounting box and located above the clamping groove, and a downward-pressing driving device for downward pressing the particulate matter sampling head and driving the particulate matter sampling head to rotate is arranged above the clamping box; the side wall of the mounting box body is provided with a dismounting through groove which penetrates through the mounting box body and meanwhile penetrates through the clamping box on the same side to be communicated with the clamping groove, and a telescopic clamping jaw is telescopically mounted in the corresponding direction of the dismounting through groove. According to the device, the aluminum foil compression ring can be automatically peeled off after the particulate matter sampling head is clamped, so that the stable disassembly of the filter membrane is ensured, and the sampling accuracy is ensured.

This utility model belongs to the technical field of card processing equipment, specifically a card pressing and adsorption assembly and its random grouping card issuing and receiving mechanism, including: a mounting bracket, a mounting plate mounted on the mounting bracket, a connecting plate slidably arranged under the mounting plate, a driving assembly installed inside the mounting plate, a hydraulic telescopic rod installed at the lower end of the connecting plate, a connector installed at the lower end of the hydraulic telescopic rod, a pressing rod installed at the lower end of the connector, and multiple sets of pressing assemblies installed at the lower end of the pressing rod; an adsorption assembly is mounted on the pressing plate, the adsorption assembly includes a vacuum pump, a connecting pipe, an adapter pipe, a connecting hose, and a vacuum suction cup, the vacuum pump is installed on the side of the pressing plate, the connecting pipe is sealed at the vacuum pump outlet, the adapter pipe is installed on the upper end of the pressing plate and is sealed to the connecting pipe, the vacuum suction cup is installed at the lower end of the pressing assembly, one end of the connecting hose is sealed to the vacuum suction cup, the other end of the connecting hose is sealed to the adapter pipe, and a solenoid valve is provided on the side of the connecting hose.

The utility model relates to the field of fire-fighting equipment, concretely relates to a fire engine pressure relief tank, including setting the tank lid on the tank mouth department of tank body, the tank lid includes the apron, the apron is equipped with the boss part to the one side of tank body, be equipped with the cavity between the boss part with the apron, the tank lid is vertically equipped with the elastic connecting rod, the elastic connecting rod one end is connected with the tank lid, the other end swing joint has the pressure arm, the lateral wall of tank body tank mouth is equipped with the mounting seat, the mounting seat is vertically connected with horizontal rotary seat, horizontal rotary seat can carry out horizontal rotation on the mounting seat, the pressure arm one end is hinged with horizontal rotary seat, the other end is connected with the tank mouth department of tank body and is connected, compared with traditional pressure relief tank, the utility model can realize the self -adaptation pressure -relief through the cavity in the tank lid and the cooperation of elastic connecting rod, has reduced the risk that the tank body breaks down due to the pressure is too big in the pressure relief tank.

The application discloses a limiting mechanism for sleigh vehicle braking and a sleigh vehicle, and comprises a braking component, which comprises a main mounting shaft, a fixing buckle fixed on the main mounting shaft and used for fixing the main mounting shaft, and single-side braking structures arranged on the two sides of the main mounting shaft respectively and controlled separately, wherein each single-side braking structure comprises an inner partition plate and an outer partition plate, and the two plates are arranged on the single side of the main mounting shaft in cooperation. Compared with the prior art, the application has the advantages that the left and right single-side braking structures are provided, the driver can control the brake switches on the two sides respectively, the proportional pressing of the single-side braking shaft structure on any side can be realized, when the sleigh vehicle deviates, the sleigh vehicle can be quickly returned to the normal state through the increased braking force on the other side, when the braking shaft structure touches the ground, the rigid impact is converted into elastic buffering through the compression of the buffering spring along the buffering shaft, the instantaneous excessive braking force is avoided to cause the sleigh vehicle to lose control or violently shake, and the compression degree of the buffering spring can be adjusted and set, so that the application is suitable for different terrains and grounds.

This invention discloses an optimized method for deception jamming of frequency-hopping radar based on a four-dimensional antenna array. This method addresses the problem of existing four-dimensional antenna arrays failing to jam against broadband radars with rapidly changing frequencies due to beam squint effects. It constructs a broadband array pattern model with the entire radar frequency hopping point set as variables and establishes a hierarchical optimization cost function. This function prioritizes suppressing the echo from the true target direction to below a safe threshold across the entire frequency band, and then maximizes the minimum gain in the direction of the false target. A differential evolution algorithm is used to globally optimize the RF switching timing parameters of each array element, obtaining a set of frequency-independent robust optimal timing sequences. Loading these timing sequences into the controller enables the four-dimensional antenna array to stably achieve deception jamming effects that conceal the true target and enhance the false target across the entire frequency hopping bandwidth of the radar without real-time adjustments. This effectively overcomes the aperture crossing effect and ensures the robustness of jamming when the enemy radar frequency changes.

This utility model discloses a spray tray cleaning device, including a base plate, multiple support columns disposed on the upper side of the base plate, a working plate disposed on the upper side of the support columns, a bracket disposed on the upper side of the working plate, a top plate disposed on the bracket, a downward driving device with a piston rod disposed on the upper side of the top plate, a connecting plate disposed on the lower end of the piston rod, a clamping sleeve disposed on the lower side of the connecting plate, a lower sleeve disposed on the upper side of the working plate for mounting the spray tray, and a water circulation assembly disposed on the upper side of the base plate. The water circulation assembly is connected to the clamping sleeve and the lower sleeve. The cleaning device of this utility model uses the downward driving device to drive the clamping sleeve to descend, which cooperates with the lower sleeve to limit the spray tray. The water circulation assembly cleans the spray tray, preventing water from splashing onto the work area, reducing pollution, improving production safety, and reducing the labor intensity of workers.

The utility model relates to the technical field of glue dispensing needle replacing structures, and discloses a glue dispensing needle replacing structure of a glue dispensing machine, which comprises a space displacement mechanism, a needle seat bracket, a fixed seat, a motor, a magnetic sleeve seat, a clamping groove, a glue dispensing needle and an anti-falling mechanism. Compared with a traditional manual replacement mode, tedious manual operation of an operator is not needed, the replacement time is greatly saved, the dispensing machine can be put into the next round of dispensing work more quickly, the production yield in unit time is remarkably improved, the overall production efficiency is effectively improved, and the production cost is reduced. In the replacement process, the workload and the working intensity of operators are reduced, and meanwhile, the risk of misoperation caused by factors such as fatigue of the operators is also reduced; the clamping grooves for the dispensing needles with different specifications are formed in the needle seat bracket, so that the dispensing requirements of various different chips can be met, the dispensing needles can be quickly and accurately switched, and the dispensing machine can adapt to diversified production tasks.