437 results about "Suction equipment" patented technology

The invention relates to an intelligent sputum suction device, which comprises a sputum suction detection warning device, a sputum suction action operation arm, a center controller, a sputum suction tube clean replacing box, a sputum suction and collection device and a sputum suction tube, wherein the sputum suction detection warning device is used for detecting and judging whether the sputum suction is needed or not; the sputum suction action operation arm clamps, pulls and feeds the sputum suction tube, and is provided with a pressure sensor used for detecting the tube feeding resistance; a clean sputum suction tube and a waste sputum suction tube are placed in different regions in the sputum suction tube clean replacing box; a sputum collecting bottle is arranged in the sputum suction and collection device; an infrared ray detector is configured for analyzing sucked sputum; and a central controller receives various detection signals, controls the actions of forward pushing, backward retreating, rotating and the like of the sputum suction tube, and controls the starting and the stopping of the negative pressure pump. The intelligent sputum suction device has the advantages that the sputum suction operation can be effectively realized; the sputum suction position is not limited in the front section of an artificial airway; the deep sputum suction can be effectively realized; the condition of infection risk increase due to mutual pollution of the sputum of a patient and sputum suction equipment is effectively avoided; and the injury on the respiratory tract mucosa of the patient caused by sputum suction operation is reduced.

The invention relates to an air cylinder type soil profile gas collector. The air cylinder type soil profile gas collector comprises a piston handle, a dust cap, a protective sleeve, a rubber piston, a suction pipe, a miniature vacuum pump, a gas collection bag, a gas outlet pipe with a needle, a replaceable type filter, a single-channel gas outlet valve and a gas collection pipe, wherein a certain range of gas inlet micro pores are uniformly distributed on the wall on the lower part of the protective sleeve, and the top of the gas collection pipe is connected with the single-channel gas outlet valve. According to the air cylinder type soil profile gas collector, blockage interference of soil particles, water and ice to the gas inlet micro pores can be avoided; soil greenhouse gas within a depth range can be collected, and meanwhile, outside atmosphere can be avoided entering the gas collection pipe; and mobile gas suction equipment consisting of the miniature vacuum pump and the like is utilized to suck gas to increase the quantity of collected gas, so that test errors can be further eliminated, and the test precision can be improved. The air cylinder type soil profile gas collectors can be distributed in soil of different depths to collect soil greenhouse gas of different depth ranges so as to regularly monitor greenhouse gas concentrations of soil profiles within various depth ranges. The air cylinder type soil profile gas collector has the advantages of simple structure and convenience in operation and is suitable for simultaneous observation of multiple points.

The invention discloses a cyclone and a cyclone separation method for realizing concentration separation of intersoluble substances by the utilization of cavitation. The cyclone mainly comprises an inlet, a disengagement chamber and two outlets. The two outlets maintain at low pressure (vacuum environment), wherein equipment for realizing low pressure environment for the outlet far from the inlet is preferably a water pump or other suction equipment, and equipment for realizing low pressure environment for the outlet close to the inlet is preferably a low pressure pipeline, a vacuum pump or a water pump. According to the invention, through improvement of a present cyclone, its internal liquid undergoes cavitation, and a large number of generated cavitation bubbles are utilized to realize concentration separation of intersoluble substances.

The invention relates to a device (15) for foaming milk by means of external suction equipment (35), used as an accessory for espresso machines or similar domestic appliances. Said device comprises a fixed part that can be connected to the steam supply conduit (1) of said machines and an easily interchangeable disposable part (26) containing all parts that come into contact with the milk. The invention is characterised in that components of the disposable parts and in some embodiments of the invention even the entire disposable part consist(s) of thin-walled plastic tubes of the drinking straw type, which can be produced in a cost-effective and environmentally friendly manner by extrusion and subsequent thermoplastic forming. The use of the inventive device obviates the need for the inconvenient cleaning of conventional foaming nozzles and eliminates hygiene problems.

The invention provides an axial flow device comprising a shell and a transmission device. The shell is provided with the transmission device and is internally provided with a shell cavity; a vortex tube impeller is arranged in the shell cavity; the transmission device is connected with a vortex tube impeller; the vortex tube impeller is provided with a vortex tube which is provided with an impeller opening A and an impeller opening B and is internally provided with a wheel body, and the wheel body is provided with a guide blade; an inclined angle is formed between the guide blade and a rotating shaft of the vortex tube impeller; the guide blade is connected to the inner wall of the vortex tube; a shell cavity opening A is arranged at one end, which corresponds to the impeller opening A, of the shell cavity; and a shell cavity opening B is arranged at the other end of the shell cavity. The axial flow device is more energy-saving and can be used for pressurizing and conveying fluid. The axial flow device can serve as a water pump, vacuum equipment, air suction equipment, an air blower, a compressor, atomizing equipment, sprinkling equipment, a reactor, air blowing equipment, propelling equipment, a sewage processor, a dust remover, a dust collector, dressing equipment, a steam turbine, a water turbine, a wind turbine, a vortex pressurizing device utilizing residual heat of an engine, foam material manufacturing equipment, nano material manufacturing equipment and the like; and the axial flow device can be used for manufacturing a brand new foam material.

A novel portable vacuum cleaner comprising a shell, electric motor, power cord, impeller, airtight loop, filter and suction nozzle, is disclosed. The power plug may have an end-to-end joint with the Universal Serial Bus (USB) interface of the computer. A head lamp may be mounted below the external surface in the middle axial part of the shell. The cross-sectional shape of the suction nozzle shows an elongated thin pipe. A hanging loop is located above the power cord near the end of the shell. The vacuum design allows power to be easily supplied to the vacuum cleaner and dust suction inside the computer or in dim light and among crevices of components inside and outside the computers can be accomplished. Moreover, the vacuum cleaner can be easily stored beside the computer devices. Therefore, the vacuum cleaner is a portable, handy, practical and highly efficient dust suction equipment for computer devices.

The invention provides a suction equipment control system and method. The suction equipment control system is used for controlling a sensor of wearable equipment to monitor multiple physiological information of a user, and determining whether the user needs suction-inhalation equipment or not based on monitored physiological information; controlling inhalation equipment to prepare for electrification when the user needs the suction-inhalation equipment; and controlling the inhalation equipment to feed the user when the user performs suction motion. The suction equipment control system and method have following beneficial effects: by monitoring physiological information of a human body, the inhalation equipment is controlled.

The invention relates to the field of plastic suction equipment and particularly relates to sorting and recycling equipment for a plastic suction copper mould. The sorting and recycling equipment comprises a shell, a crushing region, a smashing and sorting region, a secondary sorting region and a rounding region, wherein the crushing region has the effect of crushing an integral mould waste into lumps; the smashing and sorting region has the effects of sieving the lumpy mould waste, grinding gypsum in the mould into powder, collecting the powder and sorting copper sheets in the mould; the secondary sorting region has the effects of separating the gypsum powder and wear-resistant steel balls entering a lump discharging cavity together with the copper sheets and delivering the copper sheets to the rounding region; and the rounding region has the effect of extruding the copper sheets so that the volumes of the copper sheets become small, and furthermore, the storage space is saved. By using the sorting and recycling equipment, the mould can be automatically crushed and smashed, and the gypsum and the copper sheets in the mould can be automatically sorted, so that the mould can be sufficiently recycled, resources are saved, and meanwhile the floor area of the equipment is effectively reduced.

An air leak detection device is applied to a thoracic cavity drainage system which, by using negative pressure generated by a vacuum source, aspirates gas in the thoracic cavity of a patient via a water seal chamber in which liquid is received. The pressure between the vacuum source and the water seal chamber is measured by a pressure sensor, and the occurrence of air bubbles created in the water seal chamber is detected on the basis of fluctuations of this pressure.

The invention discloses a nutrient substance in-situ recovery ecological toilet device based on faeces source separation. Faeces and urine are respectively collected via a faeces source separation system and a urine source separation system; the faeces, under the action of a vacuum suction system, is conveyed to a composting reactor to undergo microbial conversion, so that harmless and resourcefuldisposal of the faeces is achieved, and high-quality organic fertilizer is finally obtained; the urine is processed via a membrane separation method and a water resource is synchronously recovered, treated water, after undergoing decoloration and disinfection, is applied to faeces flushing and moisture content regulating and control of a faeces compost mixed material; nitrogen and phosphorus nutrient elements are recovered from a concentrated solution via a magnesium ammonium phosphate precipitation method and struvite is produced; and through the application of vacuum suction equipment, under a condition of guaranteeing a toilet clean and sanitary, zero consumption of ecological toilet flushing water is achieved. The device provided by the invention is applicable to distributed densely populated occasions which have a high requirement on using the toilet such as scenic spots, urban streets and the like; and the device is applicable to new or reconstructed and extended toilets.

The invention discloses a tiny product grabbing device. The tiny product grabbing device comprises a data processing module, a negative pressure cavity, an orientation adjuster and a suction head; anextraction opening is formed in the upper end of the negative pressure cavity and is connected with external extraction equipment. The contact force between the sucker and a grabbed object can be sensed in real time through a piezoelectric sensor, and the contact force is converted into an electric signal to be sent to the data processing module; the data processing module recognizes a contact direction of a sucker and the grabbed object according to the received electric signal, then a length adjuster is correspondingly adjusted to lift the contact position; and hard contact between the sucker and the grabbed object is relieved, and the grabbed object is prevented from being crushed by the sucker.

The invention relates to a green manufacturing method and a green manufacturing system of spectacle lenses. The green manufacturing method and the green manufacturing system are characterized in that firstly, the whole manufacturing process is completed in an ultra-clean workshop, and the purification level of the ultra-clean workshop is more than 1000 PPM; secondly, two curing molds are wound by utilizing ultraphotic adhesive tapes, so as to form a material feeding cavity, after materials are cured, the ultraphotic adhesive tapes wound on the surfaces of the molds are released, the molds in which the lenses are stuck are placed on outer circumferential polishing equipment, so that the outer circumferential polishing of the lenses which are exposed out of the molds is completed in a closed space, and dust generated by polishing in the closed space is sucked from the ultra-clean workshop by utilizing suction equipment for purification treatment; thirdly, the lenses are separated from the molds in a non-contact stressing separation mode; finally, the dust on the surfaces of the lenses and the molds are blown away by utilizing clean air, so that the clean lenses are obtained and then enter coating equipment to be coated, then the clean lenses are sent to a packaging line to be automatically packaged, and the clean molds return to mold closing equipment through a production line for the next cycle. The green manufacturing method and the green manufacturing system have the advantages of greenness, environmental friendliness and no environmental pollution.

The invention provides a stone crushing and clearing all-in-one machine. The stone crushing and clearing all-in-one machine comprises three energy output ports, namely, an ultrasonic output interface, a pneumatic output interface and a holmium laser output interface respectively. During treatment, stone crushing measures can be flexibly selected as required. Moreover, a stone clearing device accommodating assembly which comprises a support lug I and a telescopic bracket is provided; the support lug I is used for accommodating a collecting bottle; the telescopic bracket is used for accommodating negative-pressure suction equipment. Stone clearing equipment and stone crushing equipment are arranged and placed neatly and orderly.

The invention relates to an aligned nanofibrous yarn preparing device and a using method thereof. Air holes which are distributed in a matrix mode are formed in the circumference of a hollow outer roller, an airflow gathering inner sleeve is fixedly arranged inside the hollow outer roller, communicated with the hollow outer roller, and connected with air suction equipment, the hollow outer rolleris driven by a transmission mechanism to rotate, a compact net covers the hollow outer roller, the surface of the hollow outer roller is separated into fiber bundling grooves through spaced insulatingseparating rings, an electrostatic spinning spinneret mechanism corresponds to the hollow outer roller, and twisting and winding mechanisms correspond to all the fiber bundling grooves respectively.The using method comprises the steps of starting the electrostatic spinning spinneret mechanism to generate jet flow of a spinning solution; starting the transmission mechanism to drive the hollow outer roller to rotate; starting the air suction equipment for air exhaust, wherein the spinning solution is gathered and distributed to form aligned nanofibrous bundles; conducting twisting and winding.By means of the aligned nanofibrous yarn preparing device and the using method thereof, subsection bundling and continuous production of nanofibers are achieved, high alignment is achieved, the structural integrity is guaranteed, and the production efficiency is improved.

The invention discloses a protective device for an industrial welding robot. The protective device comprises a welding head body, a welding rod, a protective cover, a connecting pipe, a connecting disc, a reset spring, a piston rod, an air cylinder, a fixed plate, a guide plate, a first through hole, a second through hole, a guide groove, a smoke suction box, a limiting plate and a smoke suction hole. The protective cover can be slidably connected with the welding head body through the guide groove in the lateral side of the connecting disc. During use of the welding head body, the protectivecover can slide along the guide plate when touching a welding piece, the reset spring can enable the protective cover to extend and contract, and the normal use of the welding head body is guaranteed.The piston rod is driven to move through the air cylinder. Because the limiting plate is clamped in the protective cover, the protective cover can move along with the piston rod, and a connecting position between the welding head body and the welding rod can be exposed so as to facilitate replacement by workers. Because the smoke suction box is arranged in the protective cover, smoke generated during welding can be pumped away by externally connecting smoke suction equipment with the connecting pipe, and human bodies are prevented from being damaged.

The invention discloses a submarine cable construction method for hydraulic power scouring, discharging, dredging and excavation. The method specifically comprises the following steps that a cutter suction dredger is transformed into a scouring suction type suction ship; after mud suction, the mud is conveyed to a dredger pontoon in a totally-closed manner through a mud discharging pipeline to beoutwards transported; and dredging and mud suction are conducted till a cable is completely exposed. The method is a safe and efficient dredging and excavation technology. The water flow scouring principle is utilized, soil excavating and conveying are conducted under the action of hydraulic power, then, high-pressure water guns are used for spraying out a dense high-speed water column to cut andpulverize a soil mass, the soil is wetted and disintegrated, slurry and clod mixture is formed and then is sucked and conveyed to the dredger pontoon through a slurry pump and a mud discharging pump to be subjected to shipment and outwards transported. The method has the beneficial effects that the high-pressure water flow is utilized for cutting the soil mass, the contact part of sludge suction equipment and the mud face is a hose, and therefore the contact between the bottom of the slurry pump and the mud face is soft contact, accordingly, damage to the cable from machines is avoided, meanwhile, the dredging efficiency is high, and construction risks are reduced.

The invention relates to a device and a system for cleaning separated crystal of a stirring rod of a platinum channel. The device comprises a steel brush (2) and a coating sleeve (1), wherein the coating sleeve (1) is coated at the periphery of a stirring rod (4); the steel brush (2) comprises a connecting rod (22) and a brush head (21), and the brush head (21) is positioned at the end part of the connecting rod (22); the coating sleeve (1) is provided with an opening (11) for the brush head (21) to enter to brush off the separated crystal which is attached to the stirring rod (4); the connecting rod (22) is of a hollow structure, so that air suction equipment (3) is capable of being communicated with fluid in the coating sleeve (1) through the connecting rod (22), thereby sucking the separated crystal brushed off by the brush head (21). The device and the system provided by the invention have the advantages that the falling amount of the separated crystal in the traditional stirring rod cleaning process is effectively reduced, so that the excitation amount of air bubbles is reduced, the discarding time of air bubbles is shortened, and the output loss is reduced.

The invention is suitable for the technical field of suction nozzles and provides a suction nozzle structure with a light source. The structure comprises a suction nozzle, an air pipe connector and a light source gun, wherein the air pipe connector is connected with the suction nozzle and air suction equipment; and the light source gun is arranged in the suction nozzle and connected with a light source signal connection block. Through the suction nozzle structure with the light source provided by the invention, a plurality of tests can be performed at the same time when the suction nozzle adsorbs products to a test position by arranging the light source gun which can transmitting the light source in the suction nozzle, so that the problem that the products are tested by adsorbing the products to different test positions respectively is solved; the test time is saved; and the testing efficiency is improved.

The invention provides hydraulicking cutter suction equipment and method for inner support foundation pit engineering. The hydraulicking cutter suction equipment comprises a main rod, a power device and a double-shaft soil reaming device and further comprises a mud sucking pipe embedded in the main rod, and high-pressure water guns arranged on the two sides of the main rod, wherein the high-pressure water guns are connected in from the portion above the power device and extend to be inserted into a fixing plate. The method comprises the following steps that a surface layer soil body is excavated; a first concrete inner support is constructed, and an H-shaped steel track of an electric hoist is installed; a pipeline is laid; the workload is arranged; and hydraulicking construction is carried out. The equipment and the method have the beneficial effects that the structure is simple, operation is convenient, maintaining is easy, the cost is low, soft soil excavation is carried out for foundation pit engineering with the inner support, the efficiency is improved remarkably compared with that of a traditional excavation machine, the construction period of the earthwork engineering is shortened greatly, the influence caused by flying dust is reduced, and the problem of slag and soil transportation and the like is solved.

The invention relates to a plastic flexible tube (10) for air exhausting equipment, particularly a vacuum cleaner plastic flexible tube (10). The plastic flexible tube is provided with at least one longitudinal section (14) in a longituidinal extending direction. The inner diameter of the plastic flexible tube (10) is variable in the longitudinal section. The plastic flexible tube is characterizedin that the plastic flexible tube forms a squeezed corrugated tube (18); the corrugated tube is provided with a radially outer peak (20), a radially inner valley (22) and a side section (24) which correspondingly extends between the peak (20) and the valley (22), wherein each valley (22) which is arranged in at least one longitudinal section (14) comprises an appropriately planar section (26) which faces the inner part of the plastic flexible tube (10). Furthermore the invention relates to application of the plastic flexible tube (10) according to the invention.

The invention relates to a mandatory diffuse type cooling ventilating pipeline system for a large-scale frozen earth roadbed and a construction method thereof. The traditional roadbed ventilating pipeline system is limited in temperature reduction effect and is adverse to the stability of frozen earth by increasing the temperature of a roadbed by introducing hot air in summer. The mandatory diffuse type cooling ventilating pipeline system comprises a plurality of horizontal ventilating pipes and a plurality of longitudinal ventilating pipes, which are horizontally and longitudinally crossed and mutually communicated, wherein the longitudinal ventilating pipes positioned on the end parts of two sides are respectively connected with an air inlet and air outlets, which protrude out of the horizontal direction of the roadbed; one air inlet is formed, and an air suction equipment and a temperature controlled switch are arranged on the air inlet; and a plurality of the air outlets are form in the front and back sides along a longitudinal direction. According to the mandatory diffuse type cooling ventilating pipeline system, cold air is introduced from the air suction equipment arranged in the air inlet, circulated through the longitudinal ventilating pipes and the horizontal ventilating pipes and then emitted from the air outlets, and the air is subjected to heat exchange with the roadbed in a pipe internal-circulation process, so that the effect of reducing the temperature of the roadbed is achieved. The mandatory diffuse type cooling ventilating pipeline system disclosed by the invention can only be started when external air temperature is lower than the temperature of the roadbed to prevent the entrance of the hot air in summer and is controllable in air quantity and obvious in cooling effect.

The invention discloses a control method and dust collection equipment. The dust collection equipment comprises a gas sensing device. The control method comprises the following steps of detection: enabling the gas sensing device to detect the gas in the dust suction equipment, and generating an applicable gas value; judgment: judging whether the gas value is greater than the setting threshold value or not; control: when the gas value is greater than the setting threshold value, controlling the dust collection equipment to send prompting information. The control method disclosed by the embodiment has the advantage that when the foreign odor in the dust collection equipment is larger, the gas value is greater than the setting threshold value through detection, and the prompting information is sent out, a user is timely informed to treat the dirt in the dust collection equipment, so that the further pollution to air by the dust collection equipment is avoided.

The invention discloses a rotary transmission guide pipe with a power source capable of being placed in a human body. The rotary transmission guide pipe with the power source capable of being placed in the human body comprises a fixed packaging shell capable of being placed in the human body, a rigid shaft, the power source and an acting part, and the power source is connected with a power sourcecontroller through a cable. The rotary transmission guide pipe with the power source capable of being placed in the human body is characterized in that the power source is arranged in the fixed packaging shell, the power source drives the acting part located outside the fixed packaging shell through the rigid shaft, and a near-end current-limiting part and a far-end current-limiting part are arranged on the rigid shaft in a penetrating mode. The rotary transmission guide pipe with the power source capable of being placed in the human body has the following advantages that the two current-limiting parts are used and liquid sealing is used for isolating blood and a motor. The motor is internally arranged in the human body, the length of the rotary part is effectively shortened, and the reliability and operation time of the system are improved. Suction equipment and / or gas delivery pressurized equipment is used, gas circulates to form purging sealing protection of the power source, it isguaranteed that backflow perfusion fluid is not accumulated in the guide pipe, a general motor can be used, a waterproof / anti-corrosion motor is not required, and the cost is reduced. The circulatinggas and liquid can take heat generated by the motor.

The invention provides a disposable three-cavity one-way bi-pass decompression abortion suction tube which comprises a handle and a suction tube body, wherein the tube body is divided into three tubular cavities; the first cavity is a suction cavity which is provided with a suction inlet and a suction outlet; the second cavity is a decompression cavity which is provided with a decompression inlet and a decompression outlet; the third cavity is a negative-pressure control cavity which is provided with a negative-pressure control air outlet and a negative-pressure control air inlet; the handle is provided with a main interface connected with suction equipment, an inlet connected with the suction outlet of the suction cavity and a flow passage between the main interface and the inlet; the handle is also provided with a one-way outlet and a one-way inlet, and the one-way inlet is communicated with the negative-pressure control air inlet of the negative-pressure control cavity and is provided with a one-way air inlet valve; and the one-way outlet is communicated with the decompression outlet of the decompression cavity and is provided with a one-way air outlet valve. When the disposable three-cavity one-way bi-pass decompression abortion suction tube is used, uterus blood countercurrent during abortion can be prevented so as to prevent endometriosis and barrenness; and uterus wall muscular tension in the abortion is reduced, and bleeding and pains are also reduced and lightened.

The invention discloses continuous-conveying-type negative-pressure dust suction equipment for textile fabric. The equipment comprises a housing, a fan, positioning plates, a dust suction pipe, a connecting piece and a negative-pressure dust suction device; the edge of the interior of the housing is provided with air cavities, a dust filtering net penetrates through the interior of each air cavity, air outlet pipes are connected with the end of a flow dividing pipe through connecting pipes, and a turbine is arranged in the middle of each connecting pipe; the positioning plates are fixed to theedge of the top of the housing, a guiding roller is rotatably installed on each positioning plate, the dust suction pipe is located over the housing and connected to an air inlet of the negative-pressure dust suction device, the connecting piece is installed at the center of the top of the housing, and the lower end of a connecting frame penetrates through the connecting piece and is connected tothe outer wall of a reciprocating screw rod. The continuous-conveying-type negative-pressure dust suction equipment for the textile fabric can effectively suck fine nap and dust in a fabric interlayer, the production cost and use energy consumption of the equipment are reduced, and the efficiency of dust suction work is improved.

The invention is applicable to the field of building materials, and particularly relates to a pouring forming device applied to a building material. The device comprises a forming box, the forming boxis composed of a bottom box and a cover body which are mounted in a separated manner, the cover body is provided with air exhaust equipment which can carry out air exhaust to form negative pressure environment, a forming die capable of being lifted and adjusted is mounted in the bottom box, a bubble removing net structure used for removing bubble is mounted in the forming die, the bubble removingnet structure is provided with multiple sets of puncture structures used for removing the bubble, the air exhaust equipment is used for extracting air in the bottom box and the cover body, the negative pressure environment is formed, the air pressure in the bottom box is smaller than the exterior, after the forming die capable of being lifted and adjusted is subjected to one-round lifting and adjusting, the bubble removing net structure can use the puncture structures for puncturing the bubble, the bubble removing net structure is used for driving concrete to flow, then, the bubble can be promoted to flow to be cracked due to the influence of the negative pressure environment, the bubble can be thoroughly removed, and the product quality is high.

The invention discloses a double-wall hollow caisson foundation and a sinking construction method thereof. The double-wall hollow caisson foundation is characterized in that a double-wall hollow shaftwith an annular cavity is formed by an inner wall of the shaft and an outer wall of the shaft, so that mud suction equipment can be lowered through the annular cavity, and a mud suction head of the mud suction equipment reaches the bottom foot of the shaft, the bottom foot of the shaft is a blade foot, and the blade foot is arranged on the inner side wall of the bottom foot of the shaft in an integral ring mode; in the process of shaft sinking, an open caisson using the mud suction equipment keeps balance due to internal and external earth pressures and lateral earth pressures, and sinking iscarried out accurately in the vertical direction; under the influence of a cavity below the blade foot, a soil body in the open caisson continuously collapses and vertically sinks under the action ofgravity, thus a vertical downward negative friction is formed on a wall of the open caisson and the vertical force is increased when the open caisson sinks; the process is simple, the construction isconvenient, rapid and accurate sinking is realized, the sinking construction efficiency of the open caisson is improved, and the double-wall hollow caisson foundation and the sinking construction method thereof are suitable for the open caisson construction on land and in water.

The invention provides uterine cavity suction equipment and a control method. The method comprises the steps of: acquiring identification information of a suction tube from the suction tube when the equipment detects that the suction tube is connected to; selecting a suction parameter matched with the identification information from a plurality of pre-stored suction parameters according to the identification information; and adjusting the suction force of the suction tube according to the selected suction parameter. Visibly, through the equipment, a doctor just needs to connect the suction tube, and the uterine cavity suction equipment can automatically select the suction parameter, so that the suction force of the suction tube is adjusted, the operation is simple and convenient, and the operation efficiency of the doctor is improved.