52results about How to "Prevent suction" patented technology

The invention provides a culture tail water treatment system and method based on a constructed wetland purification technology, and relates to the field of culture tail water treatment.The culture tail water treatment system comprises a foundation, a culture pond is arranged on one side of the foundation, a protection assembly is inserted into the inner bottom wall of the culture pond, and a first water suction pump is fixedly connected into the protection assembly; a sedimentation tank is arranged at one end of the first water suction pump, a blocking assembly is fixedly connected to the inner bottom wall of the sedimentation tank, a second water suction pump is arranged on the other side of the interior of the sedimentation tank, and a water distribution assembly is fixedly connected to one end of the second water suction pump. According to the sewage treatment device, through the arrangement of the block assembly, a first inclined plate blocks sediments in the sedimentation tank for the first time, a second inclined plate blocks the sediments again, so that the sediments are accumulated at the bottom of the sedimentation tank, and a blocking net blocks and filters suspended solids in sewage, so that the sediments and the suspended solids are prevented from being sucked up by a second water suction pump; the precipitation effect is improved; and blockage of subsequent pipelines is avoided.

The utility model discloses auxiliary solid-liquid feeding equipment for a reaction kettle, which comprises a feeding cylinder body, a mounting pipe is arranged at the bottom of the feeding cylinder body, and the mounting pipe is used for being detachably mounted at a feeding hole of the reaction kettle; a plurality of partition plates are arranged in the feeding cylinder, the interior of the feeding cylinder is divided into a plurality of feeding cavities by the partition plates, and the bottoms of the feeding cavities are all communicated with the mounting pipe; a sealing plate is arranged at the top of the feeding cylinder, a plurality of feeding openings are formed in the sealing plate, and the feeding openings communicate with the feeding cavities in a one-to-one correspondence mode; and the sealing plate is also provided with an air vent. According to the feeding device, sealed feeding or feeding under atmosphere protection can be carried out according to the feeding requirement, meanwhile, the multiple feeding cavities are arranged, the situation that a large number of solid materials are attached to the inner wall of the barrel due to the fact that the solid materials and the liquid materials share one feeding channel can be avoided, and therefore the situation that feeding is inaccurate is avoided.

The invention provides oxygen generation equipment and system for a plateau alpine construction environment, and belongs to the technical field of plateau oxygen generation equipment. Comprising a shelter oxygen generator, a control center is installed at one end of the shelter oxygen generator, a dust collector is installed at the other end of the shelter oxygen generator, a dust collection bin is installed at the bottom of the dust collector, a dispersion pipe is arranged below the dust collector, and one end of the dispersion pipe is in threaded connection with an oxygen guide pipeline; a sliding rail is mounted at the top of the oxygen guide pipeline, and a servo motor is mounted at the bottom of one end of the sliding rail. By arranging the dust absorption assembly and the vibration adjusting assembly, the conveying speed of oxygen and dust absorption is guaranteed, conditions are created for the construction environment, impurities and dust in a tunnel are reduced, the oxygen content in the tunnel is increased, combustion of mechanical fuel oil is maximized, harmful gas is avoided, the personal health of personnel is guaranteed, and meanwhile the safety of the tunnel is improved. And the working efficiency of personnel and machinery is improved, and the construction progress is accelerated.

The invention discloses an air control system for cleaning floating powder of a flour mill, and relates to the technical field of flour mills, the air control system comprises a drainage pipe, the top end of the drainage pipe is provided with an air volume adjusting device, the air volume adjusting device is arranged in an observation cylinder, the bottom port of the drainage pipe is communicated with a blanking hopper, and the blanking hopper is communicated with a negative pressure air suction pipe. The grinding roller is simple in structure and convenient to install, floating powder and ash content bypass a grinding system of the flour mill by communicating the drainage pipe with the discharging hopper, the surface roughness of the grinding roller is guaranteed, the grinding roller cannot be affected by the floating powder and the ash content to become smooth, and the service life of the grinding roller is prolonged; therefore, materials can be fully ground, the phenomenon of material tabletting is reduced, and the quality of discharged powder is improved.

The invention discloses a manufacturing method of a sunshade net, raw materials are made into a plastic film through heating equipment, the plastic film is conveyed through a conveying assembly, a positioning mechanism and dust collection equipment are matched to conduct dust collection treatment on the plastic film, and finally drying treatment is conducted through a drying assembly. The quality and the performance of the product are ensured, and the implementation of the steps has obvious effects on the aspects of improving the sunshade effect, the durability, the anti-aging performance and the like of the sunshade net.

The utility model provides an ear pus removing device, which belongs to the technical field of pus removing devices and comprises a sleeve, three groups of clamping plates are arranged at one end of the sleeve, knobs are respectively connected with one sides of the three groups of clamping plates through threads, suction pipes are arranged in the three groups of clamping plates, one end of a first water pipe is arranged at the other end of the sleeve, and a negative pressure component is arranged at the other end of the first water pipe. A first sliding groove is formed in the sleeve, a sliding rod is arranged in the first sliding groove, a spring is arranged between the sliding rod and the first sliding groove, a piston is arranged on one side of the sliding rod, a supporting seat is arranged on one side of the sleeve, and a storage assembly is arranged on the supporting seat; through the arrangement of the sliding rod and the piston, the suction force of the pus removing device can be controlled, the situation that the ear canal of a patient is broken due to suction, unnecessary pain and discomfort are caused, and the follow-up treatment difficulty is increased is avoided, through the arrangement of the storage assembly, cotton swabs are placed in the storage assembly, the operation steps of an operation can be reduced, the treatment time is shortened, and the treatment efficiency is improved. And the operation burden of medical staff is also reduced.

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 utility model relates to the technical field of reaction kettles, and discloses a reaction kettle and a potassium nitrate reaction control device. The bottom end of the raw material feeding pipe is welded with one side of the upper part of the reaction kettle tank body; the bottom of the mini motor is in bolted connection with one side of the outer wall of the raw material feeding pipe; one end of the first shaft is connected with the output end of the mini motor; a hole in the middle of the cleaning block is clamped and fixed with one end of the first shaft; an exhaust fan; and a filter screen. By arranging the mini motor, the first shaft, the cleaning block, the exhaust fan and the filter screen, dust generated by potassium nitrate can be absorbed when the potassium nitrate is conveyed into the reaction kettle tank body through the raw material feeding pipe, so that the phenomenon of dust raising is avoided, the potassium nitrate can be effectively prevented from being sucked out through the filter screen, and the service life of the reaction kettle is prolonged. And the filter screen can be cleaned conveniently, and the blocking phenomenon is prevented.

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 relates to the technical field of dust removal, in particular to a plant construction ventilation and dust removal device which comprises a dust removal device body, an air filtering bin is arranged in the dust removal device body, annular sliding rails are fixedly arranged on the upper surface and the lower surface in the air filtering bin, and a plurality of annular sliding plates are arranged on the surfaces of the annular sliding rails in a sliding mode. An annular toothed plate is fixedly arranged on the surface of the annular sliding plate, a circular air filtering barrel is fixedly arranged on the surface of the annular toothed plate, cleaning grooves are formed in the two sides of the interior of the air filtering bin, air is sucked from an air inlet through an air inlet fan, filtered through the circular air filtering barrel and then exhausted through an air outlet, and after long-time use, a motor is started to drive a gear to rotate; an annular toothed plate is driven to rotate on the surface of an annular sliding rail through an annular sliding plate, a circular air filtering cylinder is in contact friction with an inner brush and an outer brush, meanwhile, an air pump is started for suction, dust generated by friction is collected into a dust collecting box through a funnel, and a dust filtering plate can prevent the dust from being sucked out.

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 present invention provides an electronic cigarette oil core separation device, including a driving device and an oil-isolating seal arranged inside the electronic cigarette housing, the oil-isolating seal is sleeved on the oil-isolating tube of the atomizing core and can move up and down along the oil-isolating tube under the drive of the driving device; the driving device drives the oil-isolating seal to move along the oil-isolating tube to the position of the oil inlet hole and then seals the oil inlet hole to achieve oil core separation, and at the same time the driving device can drive the linkage assembly to seal the air inlet duct. The oil core separation device described in the present invention can seal the air inlet duct while sealing the smoke oil, and can prevent suction while isolating the smoke oil. Compared with other products that are disassembled once and pulled up and down by a suction nozzle, it is more practical and more convenient to use and operate, and the product can be adjusted at any time according to the usage situation.

The utility model relates to a device for forming a battery cell, which comprises a bottom plate, two end pressing plates and two end side pressing plates, the two end pressing plates are oppositely arranged on the bottom plate in parallel, the distance between the two end pressing plates is adjustable, and a plurality of probes which are arranged side by side are arranged on the two end pressing plates; the two side pressing plates are oppositely installed on the bottom plate in parallel, the distance between the two side pressing plates is adjustable, a square structure is defined by the two end pressing plates and the two side pressing plates, and the distance between the two side pressing plates is adjustable. According to the battery cell formation device disclosed by the utility model, the battery cell is primarily positioned by arranging the bottom plate, the positioned battery cell is clamped by the two side pressing plates which are oppositely arranged, the two ends of the battery cell are clamped by the two end pressing plates, and the charging formation of the battery cell is realized by the probes on the end pressing plates. The battery cell formation device is simple in structure, easy to manufacture and short in manufacturing period, and can meet the formation requirements of battery cells with different sizes by adjusting the distance between the two side pressing plates and the two end pressing plates.

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 relates to the technical field of processing equipment, in particular to an outer package poking airflow dispersing device which comprises a device bottom plate, a poking assembly is arranged above the device bottom plate, a feeding assembly is arranged above the device bottom plate, a control assembly is arranged above the device bottom plate, and the poking assembly comprises a supporting frame. The supporting frame body is fixedly connected to the upper portion of the device bottom plate, and a telescopic rod is fixedly connected to the top of the supporting frame body. According to the outer package poking airflow dispersing device, through installation of the poking assembly and cooperation of the supporting frame, the telescopic rod and other components, the bottom end of the telescopic rod can be provided with an air suction pressing head, and when a packaging bag containing particles moves to the position below the telescopic rod, the telescopic rod can stretch out downwards; when the particles are compacted, the air exhaust barrel can suck out air in the packaging bag through the air exhaust hose, the screen prevents the particles from being sucked out, and then the phenomenon that the packaging bag bloats due to too much air 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 utility model relates to a material collecting device, belongs to the technical field of mechanical equipment, and particularly relates to an automatic adsorption type material collecting device which comprises a frame, and four universal wheels are installed on the wall face of the bottom end of the frame at equal intervals. The two rocker arms are rotationally installed on the side wall faces, close to each other, of two cross beams of the vehicle frame respectively, movable connectors are fixedly installed on the bottom end wall faces of the rocker arms, installation plates are movably installed on the side walls of the movable connectors, electromagnets are fixedly installed on the bottom end wall faces of the installation plates, and a collecting box is arranged in the vehicle frame; the vehicle frame is moved to a corresponding position, the electromagnet attracts scrap iron on the ground, after attraction is finished, a worker rotates the electromagnet to the position above the feeding box by rotating the rocker arm, a control switch is turned off, the attracted scrap iron falls into the collecting box, materials such as the scrap iron are collected more efficiently, and the collecting efficiency is improved. The problem that an existing automatic adsorption type material collecting device is low in working efficiency is solved.

The present application discloses a grinding device for the tooth surface of a wind power gear, which includes a bottom plate, a first side plate, a second side plate, an arc-shaped electromagnet, a grinding assembly and a slag removal assembly. The first side plate and the second side plate are both arranged on the bottom plate, the grinding assembly is arranged on the first side plate, the grinding assembly includes a grinding gear and a mounting shaft, the mounting shaft and the grinding gear are both rotatably arranged on a side of the first side plate close to the second side plate, the arc-shaped electromagnet is arranged on a side of the second side plate close to the first side plate, the arc-shaped electromagnet is arranged coaxially with the mounting shaft, the slag removal assembly includes a scraper block and a slag collection box, one side of the scraper block is arranged in contact with the arc-shaped electromagnet, a slag collection box is arranged at both ends of the arc-shaped electromagnet, and a slag collection opening is opened on the side of the slag collection box close to the arc-shaped electromagnet. The present application has the effect of improving the precision and processing quality of gear processing.

The anti-backflow sewage tank structure applied to the cleaning equipment comprises a sewage tank, a water inlet is formed in the bottom of the sewage tank, and the water inlet extends inwards to form a sewage inlet pipeline; the tank cover is connected to an opening in the top of the sewage tank, an extraction opening is formed in the tank cover, an arc-shaped flow guide cover is arranged on the bottom side of the tank cover and corresponds to the water outlet end of the sewage inlet pipeline, and a partition plate for dividing an inner cavity of the sewage tank into an upper cavity and a lower cavity is arranged on the bottom side of the arc-shaped flow guide cover; a rubber plate corresponding to the filter holes is rotationally arranged on the bottom side of the partition plate; a backflow opening is formed in the bottom side of the partition plate and extends inwards to form a backflow pipe, and the water outlet end of the backflow pipe is communicated with the interior of the arc-shaped flow guide cover. According to the scheme, the inner cavity of the sewage tank is divided into the two relatively independent sealed cavities through the partition plate, the backflow pipe is used for guiding backflow sewage to the water outlet end of the sewage inlet pipeline, and the backflow sewage and the sewage which is just sucked up fall into the lower cavity again, so that the sewage is prevented from being sucked up by the suction motor, and the problem of backflow of the sewage can be solved.

The present application proposes a speed adaptive method and device for a biventricular assist system, which determines whether the current operation of the biventricular assist system is abnormal based on the difference between the pumping flow of the left ventricular assist device and the pumping flow of the right ventricular assist device. When the operation is abnormal, the speed of the left ventricular assist device and / or the right ventricular assist device is adaptively adjusted to keep the left heart output and the right heart output balanced, prevent suction problems and over-priming problems in the left ventricle or the right ventricle, and improve the operating safety of the biventricular assist system.

This application discloses a dust-free ton bag feeding station and feeding method. The feeding station includes a support base, a gas-solid separation box, a ton bag guiding mechanism, a ton bag sealing clamping mechanism, a buffer exhaust box, an exhaust drive mechanism, a dust filtration mechanism, and a pulse jet cleaning mechanism. The ton bag guiding mechanism includes a guiding base, a first outer guiding pipe, a guiding funnel, a first inner guiding pipe, a guiding connector, an exhaust duct, and an exhaust gap. When the material falls through the first inner guiding pipe, the displaced gas is discharged through the exhaust gap and the exhaust duct. This application reduces material bridging and blockage caused by airflow obstruction and eliminates the risk of dust overflow at the unpacking port. The feeding method strongly suppresses positive pressure dust at the moment of unpacking with maximum airflow, maintains a slight negative pressure during the stable period to prevent material suction, and prevents the inner liner of the ton bag from being sucked into the equipment by reducing the airflow during the emptying period, thereby improving the operating efficiency and environmental performance of the feeding station.

The invention relates to the related technical field of machine tools, in particular to an injection molding automatic keycap pressing machine table which comprises a lower rack, an upper rack, an overturning butt joint mechanism, a waste keycap collecting mechanism, a transplanting mechanism, a keycap sucking mechanism and a keycap pressing mechanism. Foot cups and trundles are installed on the lower surface of the lower machine frame, the upper machine frame is fixed to the upper end face of the lower machine frame, and the overturning butt joint mechanism is installed on the table top of the lower machine frame. According to the equipment, the automatic keycap pressing action of the keyboard is completed through butt joint matching of the overturning butt joint mechanism and the injection molding manipulator, so that the working efficiency and stability of keycap pressing of the keyboard can be improved; and a turnover butt joint mechanism composed of a turnover lifting cylinder, a vacuum assembly, an upper guide column, a lower guide column, a turnover cylinder, a turnover mechanism, a variable-pitch cylinder, a vacuum gas pipe joint and a variable-pitch mechanism is arranged to be in butt joint with a manipulator of the injection molding machine, so that the production efficiency of the machine table is effectively improved, and the safety of personnel can be well protected.

The invention discloses a mowing device and a mowing method for a garden greening project, which relate to the technical field of mowing, and include a vehicle frame and a sawtooth disk, wherein a rotating shaft is arranged on the upper part of the sawtooth disk, a primary crushing chamber is formed on the upper part of the sawtooth disk, a secondary crushing chamber and a discharging chamber are arranged inside the sawtooth disk, and the discharging chamber is connected to a grass collecting box; a primary crushing knife and a secondary crushing knife are arranged on the rotating shaft; a feeding roller is arranged on the vehicle frame at the front side of the sawtooth disk, a rake tooth disk is arranged at the bottom of the feeding roller, a feeding pipe is arranged on the outer side of the feeding roller, a lower opening and an upper opening are arranged on the feeding pipe, a dust suction chamber and a hot air chamber are arranged inside the feeding roller, and a dust collector is arranged on the rear side of the feeding roller; by arranging a primary crushing chamber on the upper part of the sawtooth disk, and arranging a secondary crushing chamber and a discharging chamber inside the sawtooth disk, the sawtooth disk can grade and crush the cut grass stems while mowing the grass, and by arranging a feeding roller on the front side of the sawtooth disk, firstly, the grass stems can be pulled to improve the cutting force and cutting effect, and secondly, the cut grass stems can be transported, dusted and dried, and the overall structure is compact.

The utility model relates to the technical field of medical instruments, and discloses a wound negative pressure drainage set which comprises a drainage bottle, a drainage tube and a puncture needle, the upper portion of the drainage bottle is fixedly connected with a port, the periphery of the upper portion of the port is in threaded connection with a top cover, the periphery of the top cover is fixedly connected with a fixing ring, and the lower portion of the fixing ring is fixedly connected with a breaking protruding block. An easy-to-fold tube is arranged on the right side of the upper portion of the drainage bottle, a safety valve is fixedly connected to the upper end of the easy-to-fold tube, a needle head is fixedly connected to the middle of the top cover, a connector is fixedly connected to the upper end of the needle head, a sealing film is fixedly connected to the lower side in a port, a transparent frame is arranged on the front portion of the drainage bottle, and a fluorescent floating ball is arranged in the transparent frame. According to the wound negative pressure drainage set, through the cooperation of the transparent frame, the scales, the through hole, the fluorescent floating ball and the safety helmet, medical staff can conveniently and rapidly observe the amount of accumulated liquid in the drainage bottle, and then the full drainage bottle is replaced in time.

The utility model belongs to the technical field of drainage and flushing, and particularly relates to a thoracic cavity drainage, flushing and suction device which comprises an installation tube, a flushing tube and a negative pressure suction tube, two hole channels are symmetrically formed in the installation tube, and the flushing tube and the negative pressure suction tube are installed in the two hole channels respectively. The outer side of the top of the mounting pipe is sleeved with a sleeve in a threaded mode, a connecting block is mounted on the inner side of the top of the sleeve through a bearing, and a traction assembly is fixedly connected into the connecting block. After flushing is completed, the positioning cover can be pulled out forcibly from the outer side of the top of the traction tube, and after extrusion of the extrusion part is lost, the clamping sleeve can be restored through self elasticity and is separated from the flushing tube and the negative pressure suction tube, so that the flushing tube and the negative pressure suction tube can be pulled away, the installation tube is disinfected, and compared with a comparison file, the operation is convenient. The flushing pipe and the negative pressure suction pipe can be independently detached and replaced, the device body can be used repeatedly, and the practicability is higher.

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.

The invention belongs to the technical field of substrate edge grinding, and particularly relates to a flexible self-adaptive substrate edge grinding machine of a printing head. Comprising a workbench, an XYZ three-axis module, a rotating shaft R, a plate conveying belt line, a primary alignment mechanism which is arranged on the plate conveying belt line and aligns an A side, a secondary alignment mechanism which aligns a B side and aligns twice so as to eliminate an error that the two sides of a substrate are not parallel, namely the widths of the two ends are not consistent, and a grinding wheel mechanism (double grinding wheels, a diamond grinding sheet and a spraying assembly). According to the automatic edge grinding device, manual operation is converted into automation, a base plate is positioned by a first push plate through conveying of a first belt, then the base plate is subjected to 45-degree edge grinding of 0.10 + / -0.05 mm through combination of an X / Y / Z three-axis module and an organ suction nozzle and action programming, the base plate is put back to the first belt after edge grinding is completed, and the base plate is subjected to automatic edge grinding. Automatic feeding is carried out while the edged substrates are conveyed out of the working range through the first belt, and no manual operation is needed to directly participate in edging operation in the whole process.

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.