6results about How to "Achieve suction" patented technology

The application discloses a kind of range hood, comprising: main shell, main shell inside is formed with flue, flue has flue entrance, flue outlet and the air inlet between flue entrance and flue outlet;Smoke exhaust component, be located in flue, for oil fume is inhaled into flue and is discharged;Refrigeration component, be located in main shell, and be located outside flue, refrigeration component includes hot end and cold end, cold end is used to refrigeration and cold air is discharged outside main shell, hot end is used for heat dissipation;Cover, cover is located outside main shell, and form the heat dissipation channel of heat dissipation channel and outside world with main shell between hot end;First baffle, selectively open or close air inlet, change the communication state of heat dissipation channel and flue, with air inlet, to be movably arranged in the air inlet.The range hood of the application can realize the suction of oil fume, and can also refrigerate kitchen environment, and simultaneously, user can also selectively open or close air inlet in range hood according to actual demand, to adapt to different use scenarios.

The utility model discloses a cataract capsulorhexis guide ring structure, and relates to the technical field of cataract surgery, the cataract capsulorhexis guide ring structure comprises a guide ring body, the guide ring body is provided with a connecting part, the connecting part is fixedly provided with a positioning support, the guide ring body is provided with a girdling assembly, the middle position of the guide ring body is provided with an adsorption mechanism, and the adsorption mechanism is provided with an adsorption mechanism. The adsorption mechanism comprises an adsorption head mounted in the middle of the guide ring body, an adsorption opening is formed in the bottom of the adsorption head, a silica gel ring is arranged at the adsorption opening, a positioning ring seat is fixedly mounted in the adsorption head, a mounting notch is formed in the positioning ring seat, a locking mechanism is fixedly mounted in the mounting notch, and the silica gel ring is arranged on the silica gel ring. A butt joint opening is formed in the side wall of the adsorption head, and an adsorption pipeline is connected to the butt joint opening. According to the cataract capsulorhexis guide ring structure, through cooperative use of the adsorption mechanism and the locking mechanism, the annularly-cut capsular membrane can be rapidly taken out, the number of operation steps is reduced, and the operation time is shortened.

The invention belongs to the technical field of circuit board processing, and particularly discloses a PCB multilayer circuit board drilling device which comprises a clamping seat and drilling structures distributed on the clamping seat, a protective shell and a workpiece body are detachably connected to the clamping seat, displacement adjusting structures are distributed on the inner wall of the protective shell, drilling pieces are connected to the displacement adjusting structures, and the workpiece body is detachably connected to the clamping seat. And the displacement adjusting structure is used for driving the drilling piece to move up and down, so that the drilling piece drills the workpiece body, and a roller structure and a suction structure are connected to the displacement adjusting structure. When a workpiece body is drilled through a drill bit, an abutting column drives a bullseye wheel to abut against an aluminum sheet in advance, so that the situation that when the drill bit penetrates through the aluminum plate to drill the workpiece body, the bottom face of the aluminum plate cannot be effectively attached to the workpiece body can be avoided, and meanwhile when the abutting column drives the bullseye wheel to abut against the aluminum sheet in advance, the aluminum sheet cannot be effectively attached to the aluminum sheet. And when the drill bit is pulled out of the aluminum plate and the workpiece body, the drilling part of the aluminum plate is prevented from being separated from the workpiece body, and drilling cuttings are prevented from entering the space between the aluminum plate and the workpiece body.

The invention belongs to the technical field of household appliances, and discloses a middle island type range hood. The island type range hood comprises a main box mechanism, an exhaust fume collecting hood and a lifting mechanism, the exhaust fume collecting hood is located below the main box mechanism and communicated with the main box mechanism, the lifting mechanism is connected with the main box mechanism and the exhaust fume collecting hood, and the lifting mechanism is used for driving the exhaust fume collecting hood to ascend and descend; the exhaust fume collecting hood comprises a hood body, a turning plate driving assembly and two turning plates, and a fume inlet is formed in the bottom surface of the hood body; the two opposite sides, in the first horizontal direction, of the cover body are rotationally connected with the turning plates. The turning plate driving assembly is connected with the turning plate, and the turning plate driving assembly is used for driving the turning plate to rotate, so that the turning plate can be switched between a first position for shielding the smoke inlet and a second position for turning towards the outer side of the cover body to open the smoke inlet. According to the island type range hood, a smoke gathering area can be defined by arranging the turning plates, oil smoke escape is reduced, and the smoke exhaust effect is improved.

The utility model discloses a filling assembly for a formaldehyde-free adhesive, and belongs to the technical field of glue production equipment. By arranging the feeding cylinder and the discharging cylinder, reciprocating pressure pumping and pressurizing are conducted on the discharging cylinder through a vacuum pump or other devices capable of generating negative pressure, suction and pressure discharging can be conducted on glue in the feeding cylinder through the discharging cylinder, and quantitative filling of the glue is achieved; by adjusting the pumping time in the discharging barrel, the amount of glue pumped from the feeding barrel by the discharging barrel can be controlled, quantitative filling can be achieved with low cost, meanwhile, the filling amount can be changed, and use of small-scale enterprises is facilitated; an air outlet hole is formed in the top of the feeding cylinder, and the feeding cylinder passes through a top pipe joint.

The utility model provides a kind of magnetic force fixing seat, belong to magnetic attraction fixer technical field.It solves the problem of existing workpiece in processing, each time replacement processing equipment, and it needs to disassemble fixture, time-consuming and labor-consuming problem.The utility model includes shell, magnet group being set in shell, the plane of one axis of magnet group will magnet group be divided into first magnetic pole part and second magnetic pole part with magnetic pole opposite, magnet group is divided into fixed magnet group and movable magnet group, shell is equipped with a rotating member can drive movable magnet group rotation, rotating member and shell support still be equipped with a positioning mechanism, for locking the position after rotating member rotation, to make movable magnet group first magnetic pole part can respectively with fixed magnet group first magnetic pole part or second magnetic pole part face directly.The utility model is characterized in that after being fixed by magnetic force fixing seat and workpiece, by the rotation of handle, to realize the holding and release of work platform, simple and convenient operation, to realize quick replacement equipment.