16results about How to "Prevent suction" patented technology

This invention provides a fixture for controlling the adhesive thickness of Heilbeck magnetic components. The mounting base includes a station, a push rod moving mechanism, and a pressure rod moving mechanism. The station is used to place a fixture plate with a placement slot for holding the magnetic components. The magnetic components include a fixed magnet and a movable magnet, with adhesive dots positioned between them. The push rod moving mechanism includes a first drive unit and a push rod. The first drive unit drives the push rod to move the movable magnet along the placement slot, closer to the fixed magnet, and controls the adhesive dot spacing between the movable and fixed magnets. The pressure rod moving mechanism includes a second drive unit, an elastic element, a primary pressure rod, and a secondary pressure rod. The length of the primary pressure rod is greater than the length of the secondary pressure rod. The second drive unit drives the primary pressure rod to pre-press and fix the fixed magnet, preventing it from being sucked away. The second drive unit also drives the primary and secondary pressure rods to apply pressure to the fixed magnet and the movable magnet, respectively. This fixture is used to control the adhesive thickness and improve the quality of the magnetic components.

The fishpond dirt collecting structure comprises an inner-layer filter screen cover and an outer-layer filter screen cover, the mesh size of the inner-layer filter screen cover is larger than that of the outer-layer filter screen cover, the outer-layer filter screen cover is arranged on the outer side of the inner-layer filter screen cover in a sleeved mode, and the outer-layer filter screen cover is arranged on the outer side of the outer-layer filter screen cover in a sleeved mode. A support extending downwards is arranged at the top of the inner-layer filter screen cover and can be inserted into a circulating water outlet of the fishpond. According to the fishpond dirt collecting structure suitable for factory recirculating aquaculture, the double-layer filter cover is utilized, mode switching can be conducted according to the growth stage of fish, and when fish fries are small, the outer-layer filter net cover with the small outer mesh size can prevent the small-size fish fries from being sucked away; and after the fish grows up, the outer-layer filter screen cover is taken down, and the inner-layer filter screen cover with the larger internal mesh size is used for preventing the grown fish from being sucked away.

The utility model discloses an anti-odor glass fiber reinforced plastic septic tank which comprises a septic tank body, the upper end of a threaded splicing ring is fixedly connected with a suction fan, the edge of one side of the upper end of a threaded mounting block is communicated and provided with a water guide pipe, the lower end of the water guide pipe is communicated and provided with a spraying head, and the spraying head is vertically distributed at the lower end of the inner wall of a deodorization outer shell. The upper end of the water guide pipe is communicated with the water tank in a penetrating manner; and the water guide pipe is integrated with a water pump. According to the odor-returning-preventing glass fiber reinforced plastic septic tank, two groups of backflow prevention can be conducted on the liquid inlet and the liquid outlet through the one-way valves, odor returning prevention can be assisted through the flow guide pipe, odor in the glass fiber reinforced plastic septic tank can be sucked through the suction fan, efficient filtration is conducted through the filter block and the spray header, and therefore the odor concentration is reduced, and the odor returning prevention effect is achieved. Moreover, the deodorization outer shell is convenient to screw, disassemble and assemble, the filter block is convenient to independently pull, disassemble and assemble, and the suction fan is convenient to independently disassemble and assemble, so that the use effect is better.

The utility model provides a turnover mechanism of an ultrasonic stripping machine. The turnover mechanism comprises a bearing structure used for bearing an iron ring jig and two rotary driving structures which are clamped at the two ends of the bearing structure respectively and used for driving the bearing structure to turn over. The bearing structure comprises a bearing plate, a gas circuit arranged in the bearing plate and a plurality of silica gel suction cups arranged on the bearing plate and used for adsorbing the UV film from the back face of the iron ring jig. All the silica gel suction cups are communicated with the air path, and an air suction opening of the air path extends to the surface of the bearing plate. The UV film on the iron ring jig is adsorbed through a negative pressure adsorption structure composed of the silica gel suction cup and the air path, the UV film is prevented from being sucked up when frame waste materials are sucked away in the edge removing process, and the edge removing effect is ensured.

The utility model discloses a separation and preparation device for lucid ganoderma liquid. The separation and preparation device comprises a treatment tank, a storage tank, a filling hopper, a first air guide pipe and an air exhaust fan, according to the separation and preparation device for the lucid ganoderma liquid, a filling hopper is fixedly installed on the top face of a storage tank, the storage tank communicates with a treatment tank through a communicating pipe, a first filtering layer, a second filtering layer and a third filtering layer are sequentially installed on the inner side of the top of the treatment tank, and an exhaust pipe is fixedly connected to the position, corresponding to the lower portion of the third filtering layer, of the side wall of the treatment tank in an inclined penetrating mode; the end of the exhaust pipe is fixedly connected with a vertical suction-preventing pipe, the top end of the suction-preventing pipe is fixedly connected with a first air guide pipe, the first air guide pipe is fixedly connected to the air inlet end of the exhaust fan, air is fed through the filling hopper, lucid ganoderma liquid soaked in the storage tank can enter the treatment tank through the communicating pipe, and the lucid ganoderma liquid entering the treatment tank is filtered; during filtering, suction can be performed through the air exhaust fan, so that a suction filtration effect is achieved, and the filtering speed is effectively increased.

The utility model belongs to the technical field of medical instruments, and particularly relates to a bypass flow monitoring equipment connecting pipe assembly with an adjustable switch and a flushing function, which comprises a bypass flow connecting pipe, a first tee joint, a second tee joint, a first needle cylinder and a second needle cylinder, three interfaces of the first tee joint are respectively connected with a lateral interface of the connector on the gas transmission pipeline, the inner end of the bypass flow connecting pipe and the head part of the first needle cylinder; three connectors of the second tee joint are connected with the connector of the water accumulating cup, the outer end of the bypass flow connecting pipe and the head of the second needle cylinder respectively. The connecting pipe assembly can effectively solve the problem of atomization and suction existing in a bypass flow monitoring equipment connecting pipe, and the atomization effect is prevented from being affected; meanwhile, the problem that condensate water and sputum block a pipeline can be solved, and influence on monitoring of gases such as carbon dioxide and nitric oxide is avoided.

The utility model discloses a cashmere flat comb negative pressure dust removal device which comprises a rack, a protective cover is fixedly connected to the upper surface of the rack, a dust suction assembly is arranged on the upper surface of the protective cover, an air suction cover is arranged in one end of the protective cover, supporting plates are fixedly connected to the side surfaces of the two ends of the air suction cover, and rotating shafts I are rotationally connected to the interiors of the supporting plates; one end of the rotating shaft I is fixedly connected with a collecting roller, the side surface of the collecting roller is fixedly connected with a plurality of hooks, the other end of the rotating shaft I is fixedly connected with a bevel gear I, a transmission mechanism is arranged on the side surface of the bevel gear I, one end of the transmission mechanism is connected with a driving assembly, a through hole is formed in the surface of one side of the protective cover, and the through hole is aligned to the collecting roller. Certain waste of cashmere during flat carding of the cashmere is prevented, the production quantity of the cashmere is increased, meanwhile, further screening of the cashmere in impurities is avoided, and the trouble of workers is reduced.

The application belongs to the technical field of medical devices, and specifically provides an endocrine diabetic foot taking device, which comprises a sample box, a sealing cover, a suction pump, a float plug, a sealed tube, a piston, a spring, a switch, a docking nozzle and a liquid discharge pipe. The sealing cover and the sample box are in interference static sealing through a sealing ring. The suction pump provides negative pressure power for sampling. The float plug can automatically block the air inlet of the suction pump when the sample is full. The spring, the piston and the switch can automatically cut off the power supply of the pump body when the negative pressure exceeds the safety threshold. The liquid discharge pipe directs the sample to the bottom of the sample box. The endocrine diabetic foot taking device is reliable in sealing, convenient to operate, can effectively improve the safety of taking, and reduce the risk of cross infection and the cost of clinical use.

This application proposes a method and apparatus for controlling the rotation speed of a ventricular assist device (VAD). The method includes: acquiring a first left ventricular pressure and a first right ventricular pressure, wherein the first left ventricular pressure is the left ventricular pressure of the target user at a first moment when the left ventricular assist device is running at a first left rotation speed, and the first right ventricular pressure is the right ventricular pressure of the target user at a first right rotation speed when the right ventricular assist device is running at a first right rotation speed; adjusting the first left rotation speed and / or the first right rotation speed according to the first left ventricular pressure and the first right ventricular pressure to maintain a balance between the fluid output of the left and right ventricles. This application determines whether the fluid output of the user's left and right ventricles is balanced by real-time detection of ventricular pressure, and then adjusts the rotation speed of the left ventricular assist device and / or the right ventricular assist device to regulate the fluid output of the left or right ventricle when there is an imbalance, thereby ensuring a balance between the systemic and pulmonary circulation flow of the user and preventing aspiration and regurgitation problems in the left or right ventricle.

The utility model discloses a power cabinet for pneumatic conveying system, including the current -collecting box and the fan for the blast and the air intake, the inner wall of current -collecting box is enclosed and forms the current -collecting cavity, one end of fan is linked with current -collecting cavity, and the other end is linked with pneumatic conveying system, be equipped with the first air port for the air inlet and the second air port for the exhaust on current -collecting box, be equipped with filter screen subassembly on the second air port, be equipped with the first opening and closing subassembly for opening or closing first air port on the first air port. The utility model discloses a power cabinet for pneumatic conveying system has simple structure and the advantage that environmental pollution is little.

The utility model discloses a dust removal assembly for a surface processing machine, and relates to the technical field of automobile leather processing. The dust removal assembly for the surface treatment machine comprises a rectangular frame, a dust removal mechanism and a feeding mechanism, the feeding mechanism is arranged on the rectangular frame and comprises a U-shaped fixed plate, a second motor, a lead screw, a sliding rod and an L-shaped movable plate, the U-shaped fixed plate is fixedly installed on the outer surface of the front side of the rectangular frame, and the second motor is fixedly installed on the outer surface of one side of the U-shaped fixed plate. A lead screw is rotationally installed between the inner walls of the two sides of the U-shaped fixing plate, a rotating shaft of the second motor is in transmission connection with the lead screw, a sliding rod is fixedly installed between the inner walls of the two sides of the U-shaped fixing plate, an L-shaped movable plate is installed on the lead screw in a threaded mode, and the sliding rod is movably sleeved with the L-shaped movable plate. According to the dust removal assembly for the surface treatment machine, stacked leather can be automatically fed one by one and subjected to dust removal through the feeding mechanism, feeding is rapid, the leather is automatically fed into the next step after dust removal, manual intervention is not needed in the whole process, and time and labor are saved.

This utility model relates to the field of ceramic powder preparation and discloses a horizontal ball mill for ceramic powder preparation, including a support frame. A transmission pipe is fixedly connected to the inner wall of the support frame on the left side. A circular ring plate is rotatably connected to the outer wall of the transmission pipe. A ball mill barrel is connected to the right side of the circular ring plate. An input motor is fixedly connected to the left end of the transmission pipe. The output end of the input motor passes through the transmission pipe and is fixedly connected to a feeding auger. An outer cover is fixedly connected to the left side of the support frame on the right side. An output motor is fixedly connected to the right side of the outer wall of the outer cover. The output end of the output motor passes through the outer cover and is fixedly connected to a discharge auger. In this utility model, through the connection between the transmission pipe and the ball mill barrel, the material is fed into the ball mill barrel via the transmission pipe. The ball mill barrel is divided into three compartments, with filters installed between the compartments to refine the material step by step. Small holes on the outer walls of the compartments are used for sieving the powder, thereby reducing the difference in powder particle size.

The utility model belongs to the technical field of carpet cleaning, and particularly relates to a rapid carpet cleaning machine which comprises a base. A platform is arranged on the upper surface of the base through a sliding piece; the upper surface of the platform is fixedly connected with a pair of symmetrically-distributed supporting rods. A suction tube is arranged on the side wall of the supporting rod through a reciprocating piece; a suction tube is detachably mounted on the side wall of the suction tube; a dust collection assembly is arranged at one end of the suction pipe; the side wall of the suction tube is fixedly connected with a suction cup. A pair of symmetrical arc-shaped notches is formed in the outer circle wall of the suction cup; the pair of arc-shaped notches are formed in the side wall of the suction cup, the design can effectively prevent the suction cup from sucking the blanket and shifting, the arc-shaped notches are used for reducing the contact area of the dust suction opening and the blanket, so that the direct influence of suction force on the blanket is reduced, the blanket is prevented from being sucked or damaged, in addition, the design can help to better disperse the suction force, and the dust suction effect is improved. The suction cup is more stable when cleaning the blanket, pulling of blanket fibers is reduced, and the integrity of the blanket is protected.

The utility model relates to a degassing separation device, including degassing tank (1), foam breaking device (2) and inlet pipe (3), and the top of degassing tank is provided with air inlet (12) and air outlet (11), and the bottom is provided with discharge port (13). Foam breaking device sets up on the air outlet, and is provided with material inlet (23), material outlet (22) and dosing port (24) on foam breaking device, and is provided with mixing device inside to make the rapid mixing of reagent and material. Material inlet and air outlet fixed connection, dosing port is located on foam breaking device one end close to material outlet. Mixing device is located between dosing port and material inlet, and inlet pipe is set up in the degassing tank, and the upper end is communicated with air inlet, and the lower end extends to the middle part of degassing tank. The utility model can eliminate the foam in material quickly. Solve the problem that the foam is produced in polyvinyl chloride paste resin latex, and the self -polymerization in equipment is caused when degassing, and the problem that the degassing efficiency is low, and the output is affected.

The utility model discloses an oocyte collecting device for sheep, which relates to the technical field of medical instruments and comprises an injector, a sealing mechanism is arranged at the input end of the injector, a collecting mechanism is arranged at one end of the sealing mechanism, and a collecting mechanism is arranged at the input end of the collecting mechanism. The input end of the injector is inserted into one end of the connecting pipe, the rubber ring makes contact with the input end of the injector, the connecting tightness of the injector and the connecting pipe is improved, the injector is pushed to drive the input end of the injector to make contact with the connecting ring and drive the connecting ring to descend, and when the connecting ring descends, the sealing block, the sealing gasket and the fixing ring are driven to be separated. A pintle of an injector is pulled to extract gas in the collecting device through a gas hole II, a gas hole I and a connecting hose I, so that negative pressure is formed in the collecting device, and the collecting device is connected with the collecting device, so that the collecting device can conveniently collect oocytes of sheep.