38results about How to "Realize extraction" patented technology

The invention discloses a pediatric negative pressure gastric lavage device for a pediatrician. The device includes a bottom plate, a gastric lavage fluid storage tank and dirt tank. The top part of the bottom plate is fixedly connected with the box body. The front side of the box body is provided with a fixing groove. Two sides of the bottom part of the inner wall of the fixing groove are fixedlyconnected with mounting plates. The bottom parts of the gastric lavage fluid storage tank and the sewage tank are fixedly connected with mounting brackets. The two sides of the top part of the mounting brackets are provided with mounting holes. The device relates to the technical field of medical equipment. The negative-pressure gastric lavage device for the pediatrician greatly facilitates the medical personnel to fully clean the gastric lavage tank and the dirty liquid tank on the gastric lavage equipment. The device reduces the workload of the medical staff, realizes the quick and convenient disassembly and full cleaning of the gastric lavage tank and the dirty liquid tank from the gastric lavage equipment, achieves the purpose of separating and disassembling the gastric lavage tank and the dirty liquid tank from the gastric lavage equipment, and greatly facilitates the cleaning work of the gastric lavage equipment by the medical staff.

The invention discloses a pipeline burying device for water conservancy projects, and relates to the technical field of water conservancy projects. The problems are solved that synchronous reverse quick adjustment of two clamp structures cannot be achieved, and two clamps cannot be locked again in a thread transmission adjustment process; and a plurality of ground nails cannot be synchronously fixed during fixing, and mutual combination of the angular rotation of a boom main body and the disassembly of a fixed structure can not be achieved through the structural improvement. The pipeline burying device for the water conservancy projects comprises a base, wherein a fixing structure is inserted and fixed on the base, a boom main body is rotatably connected to the base, and a hydraulic telescopic rod is fixedly connected to the boom main body through bolts. The outer wall of the boom main body is welded with a toggle lever, when the toggle lever rotates along with the boom main body, thetoggle lever is in contact with a force receiving block, and at this time, the force receiving block, a mounting seat, a connecting seat and ground nails are all in a rising state, thereby realizing the extraction of the ground nails from the soil.

The invention relates to the field of cleaning and drying devices for automobile machine part machining, in particular to a cleaning and draining system for mechanical part machining. The cleaning anddraining system for mechanical part machining achieves integrated operation of conveying a mechanical part, conducting sprinkling and cleaning and conducting shaking and draining and is accurate in structural design and good in use effect. A servo motor is adopted to drive a first transmission wheel to rotate; on one hand, the first transmission wheel drives a first roller to rotate through a transmission belt, so that a conveyer belt is made to move, and parts fallen from a feeding hopper are moved rightwards; and on the other side, the first transmission wheel drives a first rack to move upand down through a first reciprocating rod, a first piston plate is made to synchronously move, through cooperation of a check valve, pumping discharge of cleaning liquid is achieved, and sprinklingand cleaning are conducted on the parts on the conveyer belt. A shaft also synchronously drives a second driven gear to swing, a second rack moves up and down under guide of a slider sliding rail, a draining mesh plate is driven to shake through a second reciprocating rod, the parts fallen onto the draining mesh plate move back and forth, and draining is accelerated.

The present invention relates to a submersible electric diaphragm pump related to field of submersible electric pump. The pump is consisted of an upper pump body, a middle pump body and a lower pump body, the lower pump body has a transmission shaft, an axial bevel gear, a radial bevel gear, a camshaft and a cam; the middle pump body has a piston, a bush, a slide valve, an oil drain valve, an induction valve and a spring in it; a septum is provide between the upper pump body and the middle pump body to separate lubricant and well liquid, a suction valve and a vent valve are mounted in the upper pump body. The present invention improved totally the impeller (turbine) direct aspiration of present submersible electric pump in structure, realizes septum working cavity shrinking and expending by to-and-fro motion driven by piston to realize pump drain of oil finally, reaches the target of small displacement mining oil in high efficiency and energy efficiency.

The invention relates to the technical field of leather flattening equipment, in particular to leather flattening treatment equipment based on transmission. A winding roller and an unwinding roller which are connected through a transmission assembly are arranged, and leather is led out of the unwinding roller from right to left and sequentially passes through the part among a first guide roller shaft, a second guide roller shaft, an upper pressing roller and a lower pressing roller and is wound on the winding roller. The unwinding roller performs unwinding, the winding roller synchronously performs winding, the leather is driven to move and flattened when passing through the upper pressing roller and the lower pressing roller, and the convenience and the efficiency are achieved. A liftingassembly is further arranged for adjusting the position of the upper pressing roller, changing a gap between the upper pressing roller and the lower pressing roller, being adapted to the leather withdifferent thicknesses, and adjusting the flattening compactness. A glazing box is further arranged, a spraying assembly is arranged in the glazing box, and a glazing agent is sprayed on the leather below the glazing box for glazing and maintaining the leather.

The invention belongs to the technical field of excavating aids, and discloses a stone clamping device for an excavating robot. The stone clamping device comprises a base and a support plate as well as a clamping mechanism and an adjusting mechanism; the clamping mechanism comprises a mounting shaft and a rotating roller which are hollow; the mounting shaft is slidably connected to the support plate, and provided with a first through hole and a second through hole; the mounting shaft is provided with two baffles, and divided into a negative pressure chamber and a pressure relief chamber by thetwo baffles; the rotating roller is connected to four connecting rods which are provided with industrial vacuum chucks; the base is internally provided with a cavity which is internally provided witha motor, a piston barrel and a piston, and the stone clamping device further comprises a first support rod, a second support rod and a third support rod which are hinged in sequence; the motor is connected to a rotating disk, and the first support rod is fixed to the rotating disk; the third support rod is hinged to the piston; and the piston barrel is provided with an air inlet and an air outlet. According to the stone clamping device disclosed by the invention, the problem that the stone clamping efficiency is low since stones can be clamped one by one only in the prior art is solved.

The invention relates to a drawer holder for a switchgear comprising: a drawer holder frame, an electrical connection mechanism provided in the drawer holder frame for connecting the main circuit of the switchgear body; and a sliding mechanism provided in the drawer holder frame for fixing and going in and out of the switchgear body, and a transmission device provided in the drawer holder frame and connected with the sliding mechanism for driving the sliding mechanism to drive the switchgear body into and out. Compared with the prior art, the drawer holder applies the force exerted by the screw, the rack plate and the shaft to facilitate the fixing and the moving in and out of the switchgear body.

The invention belongs to the field of daily articles and particularly relates to an orange and tangerine juicer. The orange and tangerine juicer comprises a cup cover and a cup body matched with the cup cover, wherein the cup body is composed of a juicing unit and a liquid container arranged under the juicing unit, the juicing unit is provided with a cavity for accommodating fruit, a rotating shaft is arranged inside the cavity, one end of the rotating shaft is rotatably connected with the top of the cup cover, the other end of the rotating shaft is provided with a blade group for cutting the fruit, the rotating shaft is provided with a fixed wheel, and the fixed wheel is connected with teeth on the cup cover through a transmission wheel above the juicing unit. A user can rotate the cup cover to drive the fixed wheel through the transmission wheel and accordingly to drive the rotating shaft to rotate, so that the blade group can achieve the action of cutting the fruit. The orange and tangerine juicer is skillful in structure and simple in materials and solves the problem that when going outdoors, people cannot squeeze the fruit into juices. By rotating the large-diameter rotating cover to drive the small-diameter rotating shaft to rotate, the orange and tangerine juicer achieves the effects of low labor consumption and high rotating speed of the rotating shaft, thereby greatly improving the juicing efficiency.

The invention describes, and illustrates, a label roll (1) having a roll core (2) and having a label tape (3), which is wound up onto the roll core (2). In order that the amount of time and effort required for changing over the label rolls can be reduced without a disproportionately large amount of space having to be provided for the label compartment, provision is made for the roll core (2) to have a plurality of rollers (5) distributed over its circumference, around which the label tape (3) is wound.

The invention discloses a coal mine impact ground pressure and harmful gas comprehensive prevention and treatment system and method. Firstly, according to roof lithology and pressure characteristics of a coal mining work face, a target rock layer of horizontal well staged fracturing is determined, according to the target rock stratum and coal seam work face characteristics, a well spacing manner of a horizontal well is determined, the horizontal well is drilled, in the horizontal well, a target rock stratum and a coal seam are subjected to fracturing, through fracturing, the target rock stratum and the coal seam form an inter-communication net-shaped fracture, a ground pump drainage system is built, harmful gas in the coal seam is subjected to pump drainage, the horizontal well is mountedin the target rock stratum, in the horizontal well, the target rock stratum and the coal seam are subjected to fracturing, the inter-communication net-shaped fracture is formed in the target rock stratum and the coal seam, fracturing pressure relief of the target rock stratum is achieved, the stress state of a coal seam roof is changed, happening of an impact ground pressure accident is avoided, and meanwhile, release and pump drainage of harmful gas in the coal seam can be achieved.

The invention discloses an anti-peeping POS machine with a dust cleaning function. The invention relates to the field of electronic cash registers. The anti-peeping POS machine comprises a base, a groove is formed in the top of the base, a through groove is formed in one end of the groove, the through groove is communicated with the groove, a sliding table is slidably connected into the through groove, a display screen is arranged at the top of the sliding table, a first-stage peep-proof mechanism is arranged between the sliding table and the display screen, and a second-stage peep-proof mechanism is arranged at one end of the top of the sliding table. A connecting rod is movably connected with the sliding table and a fixing rod on the display screen, the sliding table is pulled out, the connecting rod is driven to enable one end of the display screen to be turned over to be inclined to form the first-stage peep-proof mechanism, meanwhile, the turnover plate is bounced up through restoring force of a torsion spring, the turnover plate is used in cooperation with the curtain cloth on the two sides, the area outside the visual field of a payer is shielded, a second-stage peep-proof mechanism is formed, and payment safety can be greatly improved.

The invention discloses an injection mold for a faucet shell. The injection mold for the faucet shell comprises a fixed mold plate, a movable mold plate, a mold leg and a sprue bush. The fixed mold plate, the movable mold plate and the mold leg are arranged from top to bottom in sequence, the sprue bush is arranged in the middle of the fixed mold plate, a pulling rod is arranged below the sprue bush, a spring is arranged on the outer side of the pulling rod, a rear top plate and a front top plate are arranged in the middle of the mold leg, the pulling rod is arranged on the rear top plate, a guide column and an oblique guide column are arranged on the two sides of the sprue bush respectively, an arc-shaped pressing plate is arranged on one side of the guide column, a gear shaft is arranged on the arc-shaped pressing plate, a rack is arranged on the outer side of the gear shaft, the rack is meshed with the gear shaft, the gear shaft is fixedly connected with the arc-shaped pressing plate, and a sliding block is arranged on the outer side of the oblique guide column. The injection mold for the faucet shell is convenient to machine, the faucet shell can be formed at a time, accurate demolding can be kept, and machining precision is high.

The invention relates to a fed wire fixing device for a wire feeding machine. The fed wire fixing device is characterized in that the upper surface of a U-shaped base (1) is a semicircular inner arc-shaped face; the middle of a tail baffle (2) is provided with a round hole (15), the middle of an outlet baffle (3) is provided with a rhombus-shaped outlet hole (16), and the outlet baffle (3) and the U-shaped base (1) are in hinged connection through a connection pin shaft (13); a pressing mechanism (4) is composed of a pressing rack (6), a stretchable shaft (7), a pressing spring (8), an adjuster (9) and a pressing cross beam (10); one end of the pressing cross beam (10) is in hinged connection with the tail baffle (2) through a first pin shaft (11), the other end of the pressing cross beam (10) is in hinged connection with the outlet baffle (3) through a second pin shaft (12), one end of a steel chain (5) is fixed to the outlet side of the U-shaped base (1), and the other end of the steel chain (5) is fixed to the outlet baffle (3). The fed wire fixing device can be adapted to cored wires of different lengths, and the production cost is lowered.

The invention provides a food processor which comprises a first cup body, a rolling device and a second cup body. The rolling device embedded in the first cup body comprises a main body and a first cutting rib, and the first cutting rib extends spirally from top to bottom along the outer wall of the main body; the second cup body is buckled on the first cup body, and is in clamp connection with the first cup body; and the bottom wall of the second cup body adapts the top wall of the first cutting rib, and the top wall of the first cutting rib is arranged in an inclined way. The bottom wall ofthe second cup body adapts the top wall of the first cutting rib, and thus food is cut by cooperation between the first cutting rib and the bottom wall of the second cup body, the first cutting rib approaches the bottom wall of the second cup body more, the height of the first cutting rib is increased, and further the rolling device can drive more fruits and vegetables into the first cup body in asingle time, and the juicing speed is improved; and the top wall of the first cutting rib is arranged in the inclined way, the peripheral height of the cutting rib is further improved, and the juicing speed is further improved.

The invention relates to a landscaping water storage device which comprises a water storage tank with an opening in the upper end and a cavity inside. A filter plate for filtering rainwater is arranged at the opening of the water storage tank, and the water storage tank is communicated with a water outlet pipe for conveying water to plants. A liquid storage box used for containing a nutrient solution is arranged on the inner wall of the cavity of the water storage tank, and the liquid storage box communicates with a liquid outlet box. A stirring assembly for stirring rainwater and the nutrient solution is arranged in the water storage tank, and a driving mechanism for driving the stirring assembly to stir and simultaneously driving the liquid outlet box to discharge liquid is arranged in the water storage tank. The water storage tank has the effect that water in the water storage tank contains nutrient substances for plant growth.

The invention provides a non-power automatic vacuum-pumping siphon auxiliary apparatus. The apparatus comprises a siphon, a vacuum device for exhausting gas in the siphon, and a control device for controlling the vacuum device to exhaust the gas. The vacuum device comprises a cylinder connected with the siphon, a piston arranged in the cylinder and a connecting rod for controlling the piston to move. The control device comprises a locking piece, a first floating ball for controlling opening and locking of the locking piece and a limiting member for supporting the connecting rod and limiting a rotation point. One end of the connecting rod limits a motion position through the opening or locking of the locking piece, and the other end is connected with the piston. According to the invention, the connecting rod rotates by taking the limiting member as a fulcrum, and the gas in the siphon is automatically exhausted through a lever principle. Under the condition that installation a power apparatus is unnecessary, the stability and the accuracy of the siphon are improved, the success rate is effectively improved, the structure is simpler, and the production cost is lower.

The invention discloses an anhydrous and anaerobic reaction device and application thereof. The anhydrous and anaerobic reaction device comprises a reaction bottle, a rubber bottle plug and an aluminum cap; the rubber bottle plug and a bottleneck are tightly matched, the cap is arranged outside the bottle plug and buckled on the bottleneck, a through hole is formed in the middle of the aluminum cap, under the effect of external force, the aluminum cap can be fastened to the outer edge of the bottleneck of the reaction bottle, and thus a reaction system can withstand the high temperature and high pressure; and one face of the rubber bottle plug tightly makes contact with the cap, the outer diameter of a hollow rubber cylinder protruded on the other face of the rubber bottle plug is matchedwith the inner diameter of the bottleneck, thus the reaction bottleneck is sealed, an injector is directly applied to add a liquid material into the reaction bottle through the rubber plug without opening the bottleneck, and oxygen or vapor is prevented from entering in the adding process. The anhydrous and anaerobic reaction device is suitable for an anhydrous and anaerobic reaction under the normal temperature and normal pressure, and also suitable for an anhydrous and anaerobic reaction under the high temperature and high pressure; and a solid material and the liquid material can be added separately to avoid the situation that the anhydrous and anaerobic environment of the reaction system is damaged due to addition of the materials.

The invention discloses a curette for the orthopedics department. The curette comprises a curette bottom plate, curette side plates are rotationally connected to the three side walls of the curette bottom plate through rotating assemblies, each rotating assembly comprises a rotating cylinder and a rotating rod, a plurality of elastic torsion rods are fixedly connected between the rotating rod and the inner wall of the rotating cylinder, the rotating rod is at least fixedly connected with a pull rope, the pull ropes are at least movably wound around the rotating rod for half a circle, an adsorption space is formed in the curette bottom plate, and the end, stretching into the adsorption space, of a connection rope is fixedly connected with an elastic adsorption plate. During use of the curette, pathological tissue of a patient is scraped through overturn of the curette side plates, which not only expands the range of curettage, but also improves the efficiency of curettage; and the adsorption space comprising a first adsorption cavity, a second adsorption cavity and an extrusion cavity is formed, the elastic adsorption plate is further arranged in the adsorption space, and adsorbs blood in the adsorption cavities and discharges the blood in the extrusion cavity, so that the blood is pumped and removed, and the situation that the blood flows randomly and contaminates an operation environment is avoided.

The invention discloses an intelligent monitoring server fixing mechanism. The mechanism comprises a case used for installing a sever side plate and a side plate fixedly connected to the inner side of the case, a support plate is arranged on the inner side of the side plate, the two ends of the support plate are bent in the direction of the side plate separately and fixedly connected to the side plate, a bolt is arranged on the support plate, a slider is arranged on the side plate, a gear is arranged on the inner side of the support plate, a polished rod cylinder is arranged in the middle of the bolt, teeth meshed with the gear are arranged on the side, facing the gear, of the polished rod cylinder, one end of the slider penetrates through the side plate, teeth meshed with the gear is arranged on the side wall of the slider, and a gland is arranged at the end, located on the outer side of the side plate, of the slider. Accordingly, the problem that an existing tower server is inconvenient for internal installation can be solved.

The invention relates to a waste gas filtering, purifying and adjusting device which comprises a purifying tank body, a positioning plate I, a positioning plate II, a waste gas purifying filter element assembly, a U-shaped sealing plate and a fixing plate. The positioning plate I and the positioning plate II are correspondingly installed on the surfaces of the two opposite sides of the purifying tank body, the positioning plate I is located on the upper portion of the positioning plate II, a plurality of sealing insertion openings are formed in the positioning plate I, and limiting grooves are formed in the positions, perpendicular to the lower portions of the sealing insertion openings, of the positioning plate II. The bottom of the waste gas purification filter element assembly sequentially penetrates through the sealing insertion openings and the purification tank body and then is inserted into the limiting groove, a fixing plate is welded to the top of the waste gas purification filter element assembly, and U-shaped sealing plates are fixedly connected to the surfaces of the two sides of the waste gas purification filter element assembly on the lower portion of the fixing plate and the upper portion of the first positioning plate.

The invention relates to the technical field of data processing, and discloses a data processing device of the transaction system based on the blockchain. The device comprises a device body and a rearcover, wherein the rear cover is arranged on the rear side of the device main body; fixing bolts are arranged at the four corners of the rear cover in a penetrating mode. According to the invention,two rotating rollers are inserted into a heat exchange block; dust filtering cloth is wound on the rotating rollers, and the unfolded dust filtering cloth can filter dust in air; when the dust filtering cloth adsorbs a large amount of dust, the rotating rollers are rotated, the dust filtering cloth adsorbed with the dust can be wound, the dust filtering cloth is replaced with clean dust filteringcloth, and inconvenience caused by replacement of the dust filtering cloth in a short time is avoided.

The invention relates to the field of fabric storage devices, in particular to a fabric leveling storage box which comprises a fixing sleeve, a folding and stacking structure, a feeding structure, an adjusting structure, a tool placing structure and a storage structure. The folding and stacking structure is mounted at one end of the fixing sleeve, so that reciprocating rectilinear motion of the feeding structure can be realized, that is, automatic feeding can be completed and layered folding and stacking of fabrics can be realized through cooperative use of the folding and stacking structure and the feeding structure, and the condition that the fabrics are stored in a mess is avoided; by arranging the adjusting structure at one end of the feeding structure, fabric with different thicknesses can be conveniently conveyed, so that the applicability of the device is improved, and by arranging the tool placing structure at one end of the fixing sleeve, some common tools can be conveniently stored, taken and used, and the practicability of the device is improved. And the tool box and the fixing sleeve can be conveniently pulled out and fixed.

The invention discloses a medical pediatric negative-pressure gastric lavage device. The medical pediatric negative-pressure gastric lavage device comprises a bottom plate, a gastric lavage liquid storage tank and a dirty liquid tank, wherein a box body is fixedly connected to the top of the bottom plate; a fixing groove is formed in the front face of the box body, and mounting plates are fixedlyconnected to the two sides of the bottom of the inner wall of the fixing groove correspondingly; mounting frames are fixedly connected to the bottoms of the gastric lavage liquid storage tank and thedirty liquid tank; and mounting holes are formed in the two sides of the tops of the mounting frames correspondingly. According to the medical pediatric negative-pressure gastric lavage device, a gastric lavage tank and the dirty liquid tank on gastric lavage equipment can be sufficiently cleaned by medical staff conveniently, the workload of the medical staff is well relieved, the gastric lavagetank and the dirty liquid tank can be rapidly and conveniently detached from the gastric lavage equipment to be sufficiently cleaned, the gastric lavage tank, the dirty liquid tank and the gastric lavage equipment are separately and detachably designed, so that great convenience is brought to medical staff to clean the gastric lavage equipment.

The invention discloses a reactive power compensation cabinet for low-voltage power distribution, which comprises a cabinet body, an inner cavity, a limit plate, a drive cavity and a rain-shielding plate. The inner cavity is arranged inside the cabinet body, and the lower part of the cabinet body is slidingly connected to limit the position. The upper surface of the cabinet body is provided with a rain shield; the top of the inner cavity is provided with a main control panel and a capacitor box, and the right side of the inner surface of the limiting plate is fixed with a welding drive motor, and the drive motor is a forward and reverse motor , the left output shaft of the drive motor is fixedly welded to the first rotating shaft, and the end of the first rotating shaft away from the driving motor is connected to the side wall of the limiting plate by rotation; the present invention can change the height of the cabinet with reasonable design, effectively avoid the invasion of rainwater; thereby prolonging the service life of the cabinet; and can realize the control of the compensation circuit to ensure that the compensation circuit works within the normal range, so that the compensation circuit can more accurately realize the adjustment of the power, ensuring Electricity electricity safety.

The invention belongs to the technical field of equipment or special methods for machining workpieces through laser beams, and particularly discloses a laser drilling device. The laser drilling devicecomprises a machine frame, a workpiece positioning mechanism used for clamping and detaching a workpiece, a driving mechanism used for driving the workpiece positioning mechanism to move, and a laseremitting mechanism used for drilling are arranged on the machine frame, and the laser emitting mechanism is located above the workpiece positioning mechanism; and the driving mechanism comprises a driving shaft, a guide rod, a guide plate, a telescopic rod and a supporting cylinder, and the workpiece positioning mechanism comprises a rotating cylinder which is fixedly connected with the upper endface of the supporting cylinder. The laser drilling device aims to solve the problem that the safety of workers is threatened due to the fact that chippings are generated in the drilling process of table legs through a drill bit in the prior art.

The invention provides an automatic replacement device for a new energy sky train power battery pack. The automatic replacement device comprises a main bracket, a telescopic driving part, a bracket, a push-pull conveying belt, a conversion shaft, a driving part I, a manipulator, a limiting driving wheel and a driving part II, wherein the inner side of the main support is slidably connected with a lifting frame; a shell of the telescopic driving piece is fixedly connected to the main support, and a tail end of an output shaft of the telescopic driving piece is fixedly connected with a lower end of the lifting frame; a lower surface of the bracket is connected to an upper end of the lifting frame through welding; a side frame of the push-pull conveying belt is fixedly connected to the upper portion of the bracket in a welded mode; the conversion shaft is rotationally connected into a groove of the bracket through a bearing; the first driving piece is fixedly connected to the upper portion of the bracket, and an output shaft of the first driving piece is connected with a conversion shaft through gear engagement. It can be seen that compared with existing sky train battery pack replacement equipment, replacement efficiency and safety are improved, the device is easy and convenient to use, operation is convenient, and the time needed for frequently replacing the battery pack of the sky train is greatly saved.

The invention relates to an embedded micro-negative pressure virus sterilizing and ventilating device and a using method thereof. The device comprises an air film pump body assembly, wherein a filterassembly is fixedly mounted at the bottom of the air film pump body assembly, and an embedding frame is circumferentially mounted on the filter assembly located below the air film pump body assembly;a film is mounted below a top cover plate of the gas film pump body assembly, and an air vent is formed in the top of the top cover plate; a ventilation sterilizing mechanism is mounted at the bottomof a funnel body of the filter assembly, and a vent hole vertically penetrates through the funnel body; the top of the funnel body and the bottom of the top cover plate form a film accommodating space; and a driving mechanism drives the film to move up and down in the accommodating space to push gas in the device to flow upwards, so that new gas is promoted to enter the device from the bottom surface of the funnel body, and the gas is sterilized by the ventilation sterilizing mechanism and then is discharged upwards and outwards through the vent hole, the accommodating space and the air vent in sequence. According to the device, after the device is powered on, virus in airflow is automatically killed through micro-negative pressure, and the device is particularly suitable for temporary isolation ward or ventilation ventilation in a laboratory and is good in applicability.

The invention provides a fixing device for peritoneal drainage equipment in medical oncology, and relates to the technical field of drainage equipment. The fixing device comprises a negative pressure screw cap, the negative pressure screw cap is rotatably connected to the interior of a negative pressure block, and two drainage channels are formed in the device, so the device can select different drainage channels according to the viscosity degree of effusion at the affected part of a patient, use is convenient, and adaptability is high; a drainage tube can form a complete drainage path with a drainage tube and a liquid inlet tube, the effusion at the affected part of the patient is drained into the drainage bag, and use is stable; and when the device is used for draining thick effusion, negative pressure can be generated through the negative pressure control mechanism, so that the drainage strength of the thick effusion is enhanced, the drainage effect is good, the treatment effect is greatly improved, and the problems that an existing drainage tube can only achieve the natural drainage function of effusion at the affected part of a patient, the function is single, a the drainage effect on thick effusion is poor, and even the phenomenon that drainage cannot be achieved occurs are solved.