42 results about "Vacuum aspirator" patented technology

The invention discloses a chargeable hand-held vacuum aspirator, which is characterized by the following: possessing mounting or dismounting dust cup section; setting the dust cup as two parallel cyclones and two collecting dust chamber; connecting the collecting dust chamber to the cyclone body; using smaller cyclone because of two parallel cyclones; realizing better dust separating property; setting the cyclone body without filter and collecting dust chamber; increasing cyclone action efficiency with the two parallel cyclones; needing very simple filter; protecting blade wheel in the aspirator. This invention does not appear gradually clogging situation.

The invention discloses an electrified repair device for a cross-inked polyethylene power cable and an electrified repair method thereof. The device is characterized in that the device comprises a repair hydraulic pressure injection system, a vacuum pumping system as well as repair liquid adapters (13, 15) and taps (12, 16) which are positioned at both ends of a cable, wherein the repair liquid adapter (13) at one end of the cable is connected with the repair hydraulic pressure injection system through the tap (12), and the repair liquid adapter (15) at the other end of the cable is connected with the vacuum pumping system through the tap (16); the repair hydraulic pressure injection system is that an air compressor (1), a gas water-absorbing tank (4) and a repair liquid tank (11) are orderly connected with the tap (12) and the repair liquid adapter (13); and the vacuum pumping system is that the repair liquid adapter (15), the tap (16), a residual liquid collection bottle (17), a filtering tank (19) and a vacuum aspirator (20) are orderly connected.

The invention discloses an underwater vacuum preloading centrifugal model testing device and an underwater vacuum preloading centrifugal model testing method. The device comprises a centrifugal machine and also comprises an underwater soil body self-weight consolidation system and a vacuum driving system, wherein the underwater soil body self-weight consolidation system comprises a test model box loaded with soil body; and the vacuum driving system comprises a vacuum gas-water separation box, a vacuum aspirator pump, a rotating adapter, a high-pressure air supply device and the like. The invention can simulate soil body self-weight consolidation, namely can simulate an initial stress state of the soil body. Meanwhile, the invention adopts high-pressure air to acquire vacuum and is applied to centrifugal model testing technology, underwater vacuum preloading can be simulated, land vacuum preloading also can be simulated, vacuum preloading consolidation process and the final stress state of the consolidated soil body can be simulated, and the aim of testing underwater testing soil body displacement is fulfilled. The testing simulation can perform two-dimensional (namely a plane strain problem) or three-dimensional vacuum preloading-related simulation, and the internal stress and displacement field in a soil body consolidating area can be effectively measured.

The method and apparatus of solid wastes automatic collection ductwork evacuation and comprehensive utilization contemplated to reach a facilitative dropping, quietly, effectively and automatically collecting, evacuating, transporting of all kinds of biodegradable solid waste, getting poly package-less uniform waste particle and jam for recycle that largely reduce the emission of greenhouse gas, pollution of poly package materials, contamination of putrefactive solid waste, generate resource from waste and benefit dwellers, industrials, business units. The disclosed method, procedure and apparatus comprise setting multiple waste grinding collectors indoor and outdoor; cutting, shredding and grinding all kinds of biodegradable solid waste with gaseous and liquid medium into both dry fluidized particle for gaseous medium transportation and wet fluidized jam for liquid medium transportation by the invention multiple waste grinding collectors with multiple functions of automatic information exchange, water proportion, waste cut, shred & grind to satisfy duct pipe evacuation and transportation; Through ductwork pipes, which connect all the waste grinding collectors, pumps with liquid medium, and air pump, suction with gaseous medium, respectively evacuate and transport the fluidized particle and jam into regional collect tanks; By sorting, vehicles, pumps and vacuum aspirators via duct pipeline transport the fluidized particle and jam respectively going to feedstuff plants, bio-purifications, methane generating pools and alcohol generating pools; Methane and alcohol products purified for fuel; Dreg and sludge after disinfecting and sterilization, is respectively transported to farm for irrigation, and transported to dewater chamber to produce organic fertilizer, and further carbonized for fuel; Wastewater purified by filter and activated carbon for recycle and discharged; The regional manage house manages the regional disposal system capacity and to share living regional municipal drainage ductwork and facilities by timer, automatic information exchange assembly and the switch set at the end of the regional municipal drainage pipeline.

The invention discloses a vacuum coating process method for an external surface coating and a coating device, belonging to the technical field of surface coating. The technical key point of the method sequentially comprises surface disposal, surface vacuuming, coating, and coating thickness-setting; the technical key point of the device comprises a workpiece delivery device; wherein, the delivery device is sequentially provided with a vacuum aspirator, a coater and a coating thickness-setting machine along the delivery direction; the vacuum aspirator is connected with a vacuum source; the coater is connected with a material supply storage tank of the coating material; the coating thickness-settiing machine is arranged at the rear end part of the coater; the surface contact part between the vacuum aspirator, coater and the workpiece is provided with an elastic sealing part; an elastic sealing separation body is also arranged between the vacuum aspirator and the coater. The method and the device of the invention have the advantages of high utilization ratio of the coating material, strong adhesion of the coating, reduced settlement of the coating, high coating process efficiency, and the like, and are used for the external surface coating disposal of the workpiece.

The invention discloses a rotary microwave vacuum dryer, which comprises a bracket (11) with an operation panel (17), a microwave oven body (2) with a microwave generator (1), and a furnace with a handle (20) on the furnace door The door (23), the microwave oven body (2) is provided with a material holding chamber (3), and the vacuum suction filter tube (4) with a filter head (22) is established in the holding material chamber (3), and the material holding chamber ( One end of 3) is connected to the vacuum suction filter tube (4), and the vacuum suction filter tube (4) is connected to the condensation recovery device (24), and the condensation recovery device (24) is connected to the vacuum pump (25), and a vacuum is set on the vacuum suction filtration tube (4). Table (7), a temperature sensor (8) is arranged in the vacuum suction filter pipe (4), the other end of the material holding cavity (3) is connected to the shaft (14), and the shaft (14) is connected to the frequency conversion motor (13), and the material holding The lower end of the cavity (3) is provided with a material inlet and outlet (12). The invention has the advantages of simple structure, high drying efficiency, uniform material components without segregation, and is especially suitable for the vacuum drying and granulation process of slurry in the field of positive electrode materials for lithium-ion batteries.

A medical vacuum aspiration device includes an aspiration cylinder and a valve. The valve includes a removable fluid conduit, a valve housing having at least first and second housing portions, means for removably attaching the first housing portion to the second housing portion, and an actuator. The removable fluid conduit has a first end for attaching to a cannula and a second end for attaching to the aspiration cylinder. The first and second housing portions may define a cavity for removably holding at least a portion of the fluid conduit. The actuator is coupled to the valve housing and selectively compresses a portion of the fluid conduit to open and close a fluid path defined by the fluid conduit.

A vehicle component maintenance method comprises the following steps: removing dusts; fixing vehicle components on a support; using a vacuum aspirator to carry out vacuum dust-absorbing for the vehicle components from each angle; clean water infiltration: placing vehicle component (having dust removed) into the clean water for filtration; solution preparation: preparing the mixed liquor according to weight ratio; pouring stirred mixed liquor into a container for settlement, and taking upper clean liquor as washing liquid; impeller cleaning: controlling an impeller washing machine to periodically rotate forward and backward; supersonic wave cleaning: using a supersonic wave cleaner to wash vehicle components, wherein the supersonic wave cleaner supersonic wave vibration frequency is 90-120kHz, and power density is set to be 2-2.5W/C.

The invention relates to a method for the state control of a vacuum aspirator of a gripping device, each vacuum aspirator having a suction element and the suction element being actuated by means of avalve, wherein at least one suction of the gripping device is achieved The plate and the inspection device including the plurality of inspection devices are oriented relative to each other such that each vacuum aspirator is opposed to the inspection device disposed in the initial state. In order to inspect the suction element, the suction element is brought into contact with the inspection deviceand the vacuum aspirator is vacuum-loaded, or in order to inspect the valve, the valve is vacuum-loaded and the vacuum aspirator is brought into contact with the inspection device of the inspection device, in order to separate The suction element or the at least one valve is inspected, and as long as a change with respect to the initial state is detected on the inspection device, a signal is output by each inspection device of the inspection device.

The invention discloses a puncture pumping device embedded in an auxiliary negative pressure suction module. A three-way valve is provided with a rotating rod, and the other ends of the injection tube and the suction tube are installed outside the disposable sample collector, and the extended pipelines are respectively connected at the ports. An injection tube port and a suction tube port are formed, and a puncture needle is sleeved at the junction of the outer tube and the collection tank; the handle includes a shell that matches the collection tank, a circuit control module is arranged inside the handle, and a circuit control module is provided on the head of the shell. The corresponding control button of the control module, the circuit control module is connected with the negative pressure suction device through the electric control mode line, the negative pressure suction device includes a collection tank, the suction tube port is connected with the interface of the collection tank, and the injection tube port is connected with a syringe . Beneficial effects of the present invention: the disposable sample collector is easy to disassemble and assemble, and can realize rapid and effective puncture and liquid extraction, especially for cases with large cysts in the body or viscous liquid components in the cysts, effectively improving the efficiency of puncture and liquid extraction. efficiency.

The invention provides an auxiliary suction inlet of the vacuum aspirator. It comprises a handle portion having a rotation axis on the side of the front, a first blade and a second blade symmetrical installed by making the turning axis as benchmark, a pair of connection butt hinge pieces extends separately from the first blade and the second blade, which can be installed correspondently on the turning axis by turning. The first and the second blade, are bonded together to form integral front end opening structure, turns around the turning axis. Auxiliary inlet mounting on the front end of the handle make it possible for not keeping the auxiliary suction inlet additionally. It has convenient operation and can be used at any moment, there is no need to keep it additionally, thus avoids loss easily problem.

The invention relates to a device for in-vitro induction of self peripheral blood of patients to generate high-concentration anti-inflammatory factors. The device is characterized in that the device comprises a vacuum aspirator I (1), a centrifuge tube (2) and a vacuum aspirator B (3); the vacuum aspirator I (1) comprises a sleeving I (1.1) and a piston I (1.2); the piston I (1.2) is arranged in the sleeving I (1.1) and a flexible pipe (1.3) penetrates into the piston I (1.2); the vacuum aspirator II (3) comprises a sleeving II (3.1) and a piston II (3.2); the piston II (3.2) is arranged in the sleeving II (3.1) and the bottoms of the sleeving I (1.1) and the sleeving II (3.1) can be in screw-thread fit with the top of the centrifuge tube (2). The device for in-vitro induction of self peripheral blood of patients to generate high-concentration anti-inflammatory factors can effectively reduce the contact between blood and air and the possibility of bacterial contamination and is simple and convenient in operation.

The invention discloses a novel liposome capable of transfecting genes efficiently in vivo and in vitro and a preparation method thereof. The preparation method comprises the following steps of: weighing phosphatidylcholine and cholesterol in a molar ratio of (1-2):1, dissolving the phosphatidylcholine and the cholesterol in chloroform serving as a solvent in an amount which is 1/8 to 1/2 the mass of the phosphatidylcholine, putting the solution into a rotary flask, mixing uniformly, and sucking the solvent dry by using a vacuum aspirator to obtain a layer of lipid membrane which is attached to the wall of the flask; adding 5 mass percent glucose solution in amount which is 1/15 to 1/2 ml/g of phosphatidylcholine, dissolving the dried lipid membrane, and performing rotary drying under vacuum; and adding double distilled water until the volume of the double distilled water is equal to that of 5 mass percent glucose solution, performing ultrasonic treatment in an ultrasonic water bath tank at the temperature of 50 DEG C for 1 to 3 minutes, and collecting the liposome passing through a 0.1-micrometer polycarbonate filter membrane at the temperature of 50 DEG C to obtain the novel liposome capable of transfecting the genes efficiently in vivo and in vitro. The novel liposome capable of transfecting the genes efficiently in vivo and in vitro has the advantages of high transfection efficiency and wide transfection spectrum and particularly has the high-efficiency tumor targeting properties.

The invention provides a fermenting tank capable of fermenting hot peppers. The fermenting tank comprises a bottom plate, a fermenting tank body, a base, a fastening bolt, a vacuum aspirator pump structure, a hot pepper fermenting stirrer structure, a vent tube checking structure, a sealing cover, a protective bolt, a heating tube, a stainless steel mounting plate, a thermometer, a discharge tube,a protective cover and a holding handle, wherein one end of the base is separately welded with left and right sides of the bottom of the fermenting tank body; the other end of the base is connected with the upper part of the bottom plate through the fastening bolt; and the vacuum aspirator pump structure is mounted on the lower part of the left side of the fermenting tank body. An aluminum alloymounting plate, a gas suction control switch, a gas pump, a gas exhaust tube, a sleeve, a gas inlet tube and a gas suction tube are arranged, so that gas in the fermenting tank body is favorably sucked out; and a placing plate, a stirring control switch, a motor, a connecting belt, a drive belt wheel, a fixed base, a bearing, an insertion rod, a driven belt wheel, a connecting rod and a stirring blade are arranged, so that hot peppers in the fermenting tank body are favorably stirred.

The invention discloses a fixed toxic gas detector which comprises an upper cover and a lower cover, explosion-proof glass is arranged in the middle of the upper cover, the lower cover is connected with a first connecting support and a second connecting support, the first connecting support is connected with an audible and visual alarm, a cable and a first flange, and the rear end of the first flange is connected with a first gas sensor, the first gas sensor is sleeved with a connecting sleeve, a vacuum aspirator pump is arranged in the connecting sleeve, the second connecting support is connected with a human body induction sensor and a second flange, a second gas sensor is connected with the upper portion of the second flange, a display panel is arranged at the lower end of the upper cover, and a signal processing module is arranged below the display panel. The gas detector has the beneficial effects that the gas detection efficiency and precision are high, meanwhile, an exhaust port is connected with a purifier, purification of exhausted gas can be achieved, poisonous gas is prevented from being absorbed by the human body to cause poisoning of workers, and the safety is improved.

A percutaneous dual-cavity feeding tube includes an outer sleeve, an inner sleeve, connector I, a branch tube, connector II and a fixing device. A puncture pathway is established in the front abdominal wall of a patient according to an endoscopic PEG (percutaneous endoscopic gastrostomy) operation method; the outer sleeve and the inner sleeve are inserted into the stomach under guidance of a wireso as to fix the front gastric wall to the abdominal wall; the inner sleeve is then inserted into the distal duodenum through the pyloric obstruction; the outer sleeve is fixed to the surface skin ofthe abdominal wall of the patient via the fixing device. A syringe can be connected into the connector II to inject a nutrient liquid into the duodenum; the inner end of the outer sleeve is inserted into the stomach; after a vacuum aspirator is connected into the connector I, the vacuum aspirator can be used to draw out gastric contents via a gap between a bore of the outer sleeve and the outer wall of the inner sleeve; since the inner sleeve may slide along the outer sleeve, the position of the inner sleeve is convenient to adjust. Nasal placement of the feeding tube is avoided, so that lesspain is caused to a patient, and comfort of treatment is improved.

The invention discloses a small circuit board reflow soldering device, comprising a base. The base is located on a circuit board, a mechanical arm rotary mechanism is disposed on the base, a mechanical arm lateral moving mechanism is disposed on the mechanical arm rotary mechanism, a suction cup mechanism is disposed under the mechanical arm lateral moving mechanism, a hot air blower mechanism isdisposed on the side of a welding mechanism, a fixing mechanism is disposed under the base, a controller and a battery box are separately disposed on the base, the power input end of a controller is electrically connected to the power output end of the battery box, and the power output end of the controller is electrically connected with a mechanical arm rotary encoder, a mechanical arm rotary stepping motor, a lateral moving power stepping motor, a feed linear motor, a vacuum aspirator and the hot air blower mechanism separately. The small circuit board reflow soldering device has the advantages of simple structure and high practicability.