10results about How to "Control opening and closing" patented technology

The utility model provides an ion adsorption device. The ion adsorption device comprises an adsorption box; the preheating box is mounted at the top of the adsorption box; the liquid storage tank is mounted at the top of the preheating tank and is used for storing eluent; the liquid inlet pipe is mounted on the adsorption box; the multi-way pipe is mounted at one end of the liquid inlet pipe; the liquid injection pipe is mounted on the preheating box; the rectangular insertion openings are formed in the two sides of the adsorption box respectively; the plurality of resin ion adsorption mechanisms are respectively mounted on the plurality of rectangular sockets and are used for adsorbing ions in the wastewater; and the positioning mechanism is arranged on the adsorption box and is used for positioning the plurality of resin ion adsorption mechanisms. The ion adsorption device provided by the utility model has the advantages that the resin bed can be conveniently assembled, disassembled and separated, the resin bed can be conveniently replaced, and the adsorption effect is better.

The utility model discloses a correction tape with a mute structure. The correction tape comprises a correction tape shell, a correction head is arranged at the end, away from the new tape gear, of the correction tape shell, and one end of the correction head is fixedly connected with an installation clamping block. Wherein one side of the mounting clamping block is sleeved with a mounting clamping groove, one side of the mounting clamping groove is fixedly connected with a rotating plate, the end, close to the mounting clamping block, of the rotating plate is fixedly connected with a rotating groove, the middle of the rotating groove is rotationally connected with a rotating shaft seat, and the end, away from the mounting clamping block, of the rotating plate is fixedly connected with a tooth block; when the correction tape is used, the rotation plate is driven to rotate when the correction head tape is pressed, the gear block is controlled to open and close the new tape gear, the correction tape is more convenient and faster to use, and the correction head tape is more convenient to use. Frequent lap joint of the tooth block and the new tape gear is conveniently prevented, and the silence effect is achieved when the correction tape is used.

The utility model provides a convenient to unload the plate and frame filter. The convenient to unload the plate and frame filter includes: the residue collection box, fixed installation is on the vertical board of residue collection box, fixed installation is on the crosspiece of vertical board one side, fixed installation is on the first positioning cover of vertical board one side, is located the plate and frame filter subassembly in residue collection box top, fixed installation is on the plate and frame filter subassembly and with the slide connection of crosspiece connecting plate, the U type frame on residue collection box, set up in the positioning mechanism of U type frame is used for to the positioning of plate and frame filter subassembly, install in the residue unloading mechanism of residue collection box bottom is used for quick residue unloading. The utility model provides convenient to unload the plate and frame filter has the collection and quick residue unloading function of filter residue, has the advantage that is convenient to install and disassembly replacement to filter subassembly.

This invention relates to the field of engine filter technology and discloses an intake compensation and cleaning device for an air filter used in automobile engines. Its structure includes an upper housing, a lower housing, an outlet pipe, an intake pipe, and an intake compensation device. This invention uses a pressure-sensitive resistor chip inside a pressure sensor to monitor the air pressure at both ends in real time. The sensor converts the resistance change into a recognizable electrical signal and transmits it to the control unit. The pressure difference between the two is calculated and compared with preset blockage and warning thresholds to identify the degree of filter blockage. The control unit then controls the opening and closing of the intake compensation device. When the pressure sensor detects that the engine is under high load and the filter is severely blocked, it engages a gear with an external gear ring to drive a turntable to rotate. This controls the sliding of several power columns located on the turntable. When the power columns slide to the edge of the limit groove, as the turntable continues to rotate, it drives several connecting rods to move synchronously, controlling several fan blades to open and compensate for the air intake of the air filter.

A vagina operation assist device for surgery comprises an assist device body and a fixing device, the assist device body comprises a plurality of first air bags, and each first air bag is provided with a first air port; the assist device body further comprises a plurality of arc-shaped blocks, the arc-shaped blocks and the first air bags are alternately connected to form end-to-end closing, and a first operation channel is formed in the assist device body; a connecting channel is also arranged in the arc-shaped block; the fixing device comprises a plurality of fixing claws, one ends of the fixing claws are pivoted to the opening of the connecting channel and are in transmission connection with operating rods, the operating rods movably penetrate through the connecting channel, and the ends, away from the fixing claws, of the operating rods are exposed out of the connecting channel; when the auxiliary device is used, the auxiliary device body is pushed into the vagina, then the air bag is inflated to be expanded, the diameter of the auxiliary device body is increased, the vagina wall is extruded and expanded, then the operating rod is pulled to enable the fixing claw to rotate to be in an umbrella shape and be fixed in the pelvic cavity, the auxiliary device body can be fixed in the vagina, and the vagina is kept in an expanded state. And the subsequent surgical operation is facilitated.

The utility model discloses a fire-fighting engineering water supply device which comprises a fire hydrant shell of a hollow cylindrical structure, a flange-shaped installation base is fixedly installed at the lower end of the fire hydrant shell, the installation base and a water supply pipeline buried underground are fixedly installed through a flange, and a water outlet connector is fixedly installed on the side face of the fire hydrant shell. A sealing cover is fixedly installed at the upper end of the fire hydrant shell through a flange, a connecting column is rotationally installed in the middle of the upper portion of the sealing cover, and a valve rod connected with a valve element in the fire hydrant shell is arranged below the connecting column. According to the fire-fighting engineering water supply device, novel structural design is adopted, a rotating disc drives a connecting column and a valve rod to rotate, so that a fire hydrant is controlled to be opened and closed, the rotating disc can be pressed downwards when rusting occurs, the rotating disc drives the connecting column and a connecting block to move downwards, and therefore the connecting block moves to the position where sponge is smeared; lubricating oil is smeared by the smearing sponge, so that the lubricating purpose is achieved.

The utility model provides a kind of composite sealing door structure of aluminium melting furnace, connect multiple sealing sub-modules to same outer frame by connecting piece, constitute a complete big furnace door structure, outer frame can be connected in lifting structure in conventional technology, control the opening and closing of whole furnace door;And multiple sealing sub-modules are limited by heat deformation, to improve the sealing life of whole door body.

This utility model relates to a pressure regulating chamber structure and a pressure pipeline structure with adjustable connecting pipe opening position. It is applicable to the field of water conservancy and hydropower technology. The technical solution adopted by this utility model is: a pressure regulating chamber structure with adjustable connecting pipe opening position, comprising: a main connecting pipe, arranged above the pressure pipeline along the length direction; at least two connecting branch pipes connected to the side wall of the main connecting pipe along the length direction of the main connecting pipe, the connecting branch pipes being connected to the pressure pipeline; a pressure regulating chamber body, arranged above the main connecting pipe, the pressure regulating chamber body being connected to the main connecting pipe through a connecting conduit; an electric control valve, arranged in each connecting branch pipe, the opening and closing of the connecting branch pipes being achieved by the opening and closing of the electric control valves; and a controller, communicatively connected to each electric control valve, the controller being able to control the opening and closing of the electric control valves.

The utility model provides a machine tool guard convenient for overhauling. The machine tool guard convenient for overhauling includes: the annular casing of fixedly sleeving on the machine tool body, the connecting plate of fixed installation on the annular casing inner wall, the bidirectional screw rod of rotation installation on the connecting plate, the sliding block of screw thread sleeve on the bidirectional screw rod, the mounting seat of fixed installation on the sliding block, the guard body of installation on the mounting seat, the positioning mechanism of setting on the mounting seat is used for installing and locking the guard body, the opening and closing mechanism of installation on the annular casing inner wall is used for controlling the opening and closing of guard body. The machine tool guard convenient for overhauling provided by the utility model has the advantages of convenient installation and dismounting, convenient maintenance of guard, and convenient control of the opening and closing of guard.

The invention discloses a fine adjustment valve of a sintering machine. Comprising a valve body, a valve plate is arranged in the valve body, and a valve plate shaft is arranged on the valve plate; the free end of the valve plate shaft extends out of the valve body and is provided with a driven rocker; the driving device comprises a driving shaft, and a driving rocker is arranged on the driving shaft; the driving rocker and the driven rocker are arranged in parallel, and the free end of the driving rocker and the free end of the driven rocker are hinged through a connecting rod to form a four-bar mechanism. Through the arrangement of the four-connecting-rod mechanism and the movable valve plate, the opening degree of the valve can be more accurately controlled and adjusted. Working is reliable, the structure is compact, and installation and maintenance are convenient.