18results about How to "Press down smoothly" patented technology

The utility model discloses an upper sealing head of a disc tube type reverse osmosis membrane column, which relates to the technical field of disc tube type reverse osmosis and comprises a fixing mechanism mounted on the outer side of the membrane column and a sealing mechanism, the fixing mechanism comprises two fixing frames, clamping plates are mounted at the bottoms of the opposite ends of the two fixing frames, and the sealing mechanism comprises a sealing plate. The sealing plate is arranged at the tops of the inner sides of the two fixing frames, four adjusting lead screws are arranged on the inner wall of the bottom of the sealing plate, and pressing plates are arranged on the outer sides of the four adjusting lead screws. The device can be connected to the outer side of a reverse osmosis membrane column in a sleeving mode through the clamping plate, the adjusting lead screw rotates so that the pressing plate can be adjusted according to the size of the inner side of the reverse osmosis membrane column, the sealing plate can seal the top of the reverse osmosis membrane column, and the fastening bolt can reinforce sealing work of the sealing plate; the reverse osmosis membrane column can be conveniently sealed by the device, and meanwhile, the reverse osmosis membrane column can be more stably sealed.

The utility model relates to the technical field of composite batten production, in particular to a building composite batten cutting device which comprises a supporting base, a cutting disc arranged on the front side of the supporting base in an electric driving mode, a limiting baffle arranged on the top of the supporting base, and an electric cylinder arranged in the middle of the top of a supporting top frame. A gas distribution pipe is arranged in the middle of the bottom of the lifting plate, a plurality of dust suction pipes are arranged at the bottom of the gas distribution pipe, a fixed supporting column plate and a telescopic column plate are arranged at the bottoms of the two ends of the lifting plate, and a stable lower pressing roller is rotationally arranged at the bottom of the telescopic column plate. Compared with the prior art, the device has the advantages that the composite batten can be conveniently and accurately pushed and cut through the limiting baffle at the rear end; according to the device, dust generated in the cutting process can be pumped through a top dust pumping structure; according to the device, through the rotating rollers which can stretch out and draw back elastically front and back, the pushed composite batten can be stably pressed down, and meanwhile auxiliary stable pushing operation can be carried out.

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.

The invention discloses a tabletting forming device and a using method thereof, and belongs to the technical field of material forming devices. A mold displacement device; the mold shifting device is mounted on the rack and is used for moving the tabletting mold between the loading position and the tabletting position; the sampling device is used for collecting a powder sample through an unloading conveying pipe and conveying the sample into the tabletting mold; the tabletting device is mounted on the rack, the tabletting device comprises a bottom plate, a top plate and a pressing driving piece, and the bottom plate is connected with the top plate through a plurality of connecting pieces; the pressing driving part is mounted on the bottom plate, the pressing driving part is provided with a pressing rod corresponding to the upper pressing head, the pressing rod is provided with a mold closing spring, and the pressing rod is used for transmitting power of the pressing driving part to the upper pressing head to apply pressure to the tabletting mold; the electric control device is electrically connected with the mold shifting device, the sampling device and the tabletting device; the powder sample can be subjected to uniform and stable tabletting treatment, and the tabletting quality and consistency are ensured.

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 technical field of decorative material cutting, in particular to building decorative material cutting equipment which comprises an operation table body and a cutting machine body fixedly connected with the top of the operation table body, and the top of the operation table body is slidably connected with two adjusting installation frames through two electric sliding rails. A downward-pressing fixing plate is arranged in the adjusting mounting frame, an upper containing cavity and a lower containing cavity are formed in the top and the bottom of the downward-pressing fixing plate correspondingly, a plurality of elastic pieces are fixedly connected into the upper containing cavity and the lower containing cavity correspondingly, and the free ends of the adjacent elastic pieces are fixedly connected with a balance plate and a buffer plate correspondingly. The balance plate is fixedly connected with the adjusting mounting frame through two electric push rods, and the electric push rods are used for driving the pressing fixing plate to do longitudinal linear movement through the balance plate. According to the clamping device, the problems that in the prior art, the steps are tedious and deviation is prone to being generated during downward pressing and fixing of the installed materials are effectively solved, and the purpose of improving the clamping stability during cutting is achieved.

The invention discloses a production line finished carton conveying and stacking mechanism, and belongs to the technical field of carton production, the production line finished carton conveying and stacking mechanism comprises a folding mechanism and a front conveying mechanism mounted on one side of the folding mechanism, and a rear conveying mechanism is assembled on one side of the front conveying mechanism; by means of the rear conveying mechanism and the stacking unit, efficient connection and stable treatment of the carton conveying and stacking process are achieved, after the folding mechanism completes folding of the carton, the folded carton is stably conveyed to the conveying unit through the front conveying mechanism, in the process, a telescopic limiting belt applies pressing force to the carton, and the carton is conveyed to the stacking unit through the rear conveying mechanism. Meanwhile, the two ends of the belt body are stably fixed to ensure the continuity and reliability of the pressing effect, then stacking is conducted through the stacking unit, the whole stacking process is circulated, stable pressing of cartons in the conveying process is ensured, and the conveying efficiency of the cartons is improved. And the risk that the stacked cartons topple due to center-of-gravity shift is avoided in an overall vertical lifting mode.

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 invention discloses cable laying guide equipment for power construction, and relates to the technical field of power construction, the cable laying guide equipment comprises a vertical rod and a mounting plate fixedly connected to the end face of the vertical rod, a laying guide mechanism is arranged on the vertical rod, the laying guide mechanism comprises a guide plate, the guide plate is located on one side of the vertical rod, and the top of the guide plate is fixedly connected with a guide seat; the guide seat is used for guiding the cable; and the limiting plate is located above the guide plate, a downward pressing assembly is arranged on the limiting plate, a fixing assembly is arranged below the downward pressing assembly, and the downward pressing assembly and the fixing assembly are matched to limit the cable. By arranging the laying guide mechanism, a laid cable can be conveniently guided through cooperation of a guide plate and a limiting plate, meanwhile, the cable guide direction can be adjusted through a rotation adjusting mechanism, an angle adjusting mechanism and a position adjusting assembly, and the cable guide direction can be adjusted through cooperation of a pressing assembly and a fixing assembly. And the cable is limited and fixed.

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.

The utility model discloses a floodlighting engineering lamp wire fixing device in the technical field of floodlighting engineering, which comprises a lamp wire body, a protection mechanism arranged on the outer side of the lamp wire body, a fixing mechanism arranged on the outer side of the protection mechanism, a rubber mat arranged on the outer side of the lamp wire body, and a first protection cover and a second protection cover arranged on the outer side of the rubber mat. According to the floodlighting engineering lamp wire fixing device, the protection mechanism and the fixing mechanism are additionally arranged, the protection mechanism is of a wrapping type structure, a lamp wire body can be effectively and safely wrapped on the inner side, the lamp wire body is wrapped and protected through a rubber mat, it is ensured that when a user uses the lamp wire body in the later period, friction force between the fixing device and the lamp wire body is reduced, and the service life of the lamp wire body is prolonged. The effect of protecting the lamp wire body is achieved, the service life of the lamp wire body is prolonged, the fixing mechanism is matched with the protecting mechanism, the fixing mechanism can effectively fix the lamp wire body and the protecting mechanism on the inner side of the fixing mechanism in a downward pressing mode, and then the effect of fixing the lamp wire body is achieved.

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.

The invention relates to the technical field of precast piles, and particularly discloses a steel-concrete combined pipe pile and a construction method thereof. The steel-concrete combined pipe pile comprises a prefabricated pipe pile, a steel pipe pile and a pile feeder, the prefabricated pipe pile is a hollow pipe pile penetrating in the vertical direction. Two pile cap plates are arranged at the bottom of the prefabricated pipe pile; the two pile cap plates are hinged to the two sides of the prefabricated pipe pile correspondingly. The two pile cap plates are used for sealing the bottom of the prefabricated pipe pile in the process of sinking the prefabricated pipe pile into a soil layer; positioning notches are formed in the tops of the steel pipe piles; the pile feeder comprises a plurality of pile feeding sections; a threaded concave step is arranged at the bottom of the pile feeding section, and a threaded convex step is arranged at the top of the pile feeding section; the threaded convex step is used for clamping the threaded concave step or the positioning notch; the pile feeding section is used for connecting the hooping device and the steel pipe pile. The bearing capacity of the pipe pile can be improved through the steel pipe pile, the long-term bearing capacity of the constructed steel pipe pile can be calculated through the final pressure value, and calculation is convenient.

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 gabion net production, in particular to a pressing device for gabion net production, which comprises pressing equipment and pressing hydraulic rod equipment, the bottom of the pressing equipment is fixedly connected with a bottom plate, and a plurality of groups of net pieces are arranged above the bottom plate; pressing hydraulic rod equipment is further fixedly connected into the pressing equipment, and the free end of the pressing hydraulic rod equipment is fixedly connected with a pressing plate; blocking assemblies are fixedly connected to the two sides of the pressing equipment correspondingly, and downward pressing assemblies fixedly connected with the pressing equipment are arranged below the blocking assemblies. The mesh is placed above the bottom plate, the second motor drives the cylinder to rotate, the cylinder drives the moving frames to rotate, the rotating cylinder on the outer side of one moving frame can be extruded above the mesh, pre-pressing is formed, it is ensured that more meshes can be placed, then the pressing plate can be driven to press the meshes by starting the pressing hydraulic rod device, and the mesh pressing efficiency is improved. By means of the arrangement, pressing work of multiple sets of network chips can be achieved at a time, and work efficiency is improved.

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.