327 results about "Air Pump Assembly" patented technology

The utility model relates to a controller with a good damping effect and an intelligent bed, and provides a controller with a good damping effect, which aims at solving the problem that the sleep of a user is influenced due to large vibration generated by the existing controller, and comprises an air pump assembly for generating airflow, an inner shell for accommodating the air pump assembly, and an outer shell for accommodating the inner shell, the electromagnetic valve assembly is connected with the air pump assembly, the suspension is connected to the upper portion of the inner shell, airflow generated by the air pump assembly is led out by opening and closing the electromagnetic valve assembly, the air pump assembly is connected to the suspension from bottom to top in a suspension mode, and a gap is formed between the air pump assembly and the inner shell. And a buffer piece is arranged at the joint of the suspension frame and the inner shell. According to the air pump assembly, the air pump assembly does not make direct contact with the inner shell, the transmission path for transmitting vibration generated by the air pump assembly to the inner shell through the buffering piece and the suspension is long, the vibration is gradually weakened, generated noise is low, and the influence caused by the vibration is effectively reduced.

An air leakage prevention adjusting structure of a mechanical pump is provided. The adjusting structure may be applied to a multi-channel pump. The multi-channel pump may comprise a body, an air pump assembly and a channel switching structure which are arranged in the body, and a panel matched on the body. The adjusting structure may be matched on the panel and may comprise a channel selection knob, a turntable and a power switch. The channel selection knob may be rotatably arranged on the panel. The turntable may be arranged in the body. The upper end of the turntable may be connected with the channel selection knob, and the lower end of the turntable may be matched with the channel switching assembly. A convex edge and a notch may be arranged on the turntable. A button for controlling the on-off of a power supply is arranged on the power switch, and is selectively matched with the convex edge and the notch of the turntable. A user only needs to operate the channel selection knob to control the two functions, so that the operation of the user is facilitated, and the condition of air leakage of the inflatable product caused by omission of the operation of the user is effectively avoided.

The invention discloses a bus connection optimization device for a low-voltage standardized switch cabinet, and belongs to the technical field of power equipment. The connection optimization device comprises a junction box, a through groove which is arranged on the junction box and is used for a bus to pass through, and abutting pieces which are symmetrically arranged in the through groove and are used for fixing a bus copper bar hole on the junction box, the screw rod is arranged on the abutting piece; and the driving assembly is arranged on the junction box, is connected with the screw rod and is used for moving and locking the screw rod. According to the bus connection optimizing device for the low-voltage standardized switch cabinet, through the combined design of the air bag and the air pump assembly, when the bus expands due to heating, the air bag can be telescopic to buffer the expansive force of the bus, and the problem of loose connection of bolts and bus copper bar holes caused by the expansion due to heating in the prior art is effectively solved; therefore, the connection stability between the bus and the junction box is improved, and the reliability of power transmission is ensured.

The utility model provides an electric pneumatic hemostatic device, including an electric pneumatic hemostatic instrument body, an air circuit connection hose and a tourniquet. The electric pneumatic hemostatic instrument body is provided with a display, a controller, an air pump assembly, a photoelectric blood oxygen saturation probe, an air circuit connection interface and a probe connection interface. The display and the air pump assembly are respectively electrically connected to the controller. The photoelectric blood oxygen saturation probe is used to obtain the blood oxygen pulse signal of the distal end of the patient's limb. A pressure sensor is provided in the tourniquet. The pressure sensor is used to obtain the limb pulse signal of the patient wearing the tourniquet. The number of tourniquets is at least two, and each tourniquet is connected to an air pump assembly through an air circuit connection hose and an air circuit connection interface in turn. The utility model is convenient for reminding the operator to adjust the tourniquet pressure setting in time to reduce safety risks; ensure that the limb of the patient wearing the tourniquet has a trace amount of bleeding, and avoid the risk of limb ischemic necrosis.

The invention relates to the technical field of hydrogen energy preparation, in particular to hydrogen storage equipment for a hydrogen production and hydrogenation all-in-one machine, which comprises a machine body, a hydrogen production machine module and a hydrogen storage module, the hydrogen storage module is fixed in the machine body, and the hydrogen storage module is composed of a plurality of gas storage tanks; the hydrogenation module is arranged at the top of the hydrogen storage module, the hydrogenation module is a filling pump, and the inlet end of the hydrogenation module is connected with the hydrogen storage module; the dynamic design that a rotating frame carries a multi-fan-shaped filter screen body is adopted in a filtering air inlet assembly of the hydrogen production machine module, efficient anti-blocking and continuous air inlet in the catkin season are achieved in combination with a brush disc cleaning structure of a cleaning assembly, the rotating frame drives a vertical rod to rotate through a driving motor, the filter screen body is driven to do circular motion through bevel gear transmission, and the filter screen body does circular motion; and meanwhile, the transverse rotating rod drives the brush disc to brush and sweep the surface of the filter screen in real time, it is guaranteed that holes are smooth, the air pump assembly stably sucks sufficient air so that the whole filling and storing equipment can normally operate, water electrolysis hydrogen production can be continuously and efficiently conducted, and the supply amount of the hydrogen storage tank is guaranteed.

The invention relates to the technical field of pipeline safety protection, in particular to a safety protection device for detecting gas leakage of a petroleum and natural gas pipeline, which comprises a traction bin, the rear end of the traction bin is connected with a plurality of traction cylinders connected end to end, and the outer sides of the traction cylinders are sleeved with detection protection cylinders; an air pump assembly is installed in the traction bin, a traction force regulation and control assembly is installed on the traction bin, and a clutch assembly and a detection protection assembly are arranged between the traction cylinder and the detection protection cylinder. The device can adapt to petroleum and natural gas pipelines at various installation positions, can smoothly move in the pipeline whether a buried pipeline or a high-altitude erected pipeline, continuously detects whether the pipeline leaks gas or not in the moving process, improves the detection efficiency, can be separated from the detection protection barrel through the traction barrel, and is convenient to use. The detection protection cylinder can accurately stay at the leakage position and prevent leakage, the leakage duration time and the leakage amount are greatly reduced, the pipeline safety can be guaranteed, and accident losses can be reduced.

The utility model relates to a controller used on an air mattress and an intelligent bed, belongs to the field of intelligent bed accessories, and provides the controller used on the air mattress aiming at the problem that large vibration is generated when an existing control electromagnetic valve works, the controller comprises an inner shell, a suspension connected to the upper portion of the inner shell and an air pump assembly used for generating airflow, the electromagnetic valve assembly is arranged on the suspension from bottom to top, and airflow is controlled to be switched on and off by opening and closing the electromagnetic valve assembly; the electromagnetic valve assembly is directly or indirectly connected with the suspension through the damping belt, so that the electromagnetic valve assembly is suspended in the inner shell. The electromagnetic valve assembly generating vibration is suspended on the suspension frame, the electromagnetic valve assembly and the suspension frame are connected only through the damping belt, the contact area is effectively reduced, vibration transmission paths are reduced, then noise is reduced, the damping belt can absorb part of vibration, vibration is further reduced, and the influence caused by vibration is effectively relieved.

The invention provides a suspension type double-cavity air pump device which comprises a shell, an air pump assembly and a suspension device, an installation space is formed in the shell, an air outlet connected with the installation space is formed in the shell, and the air pump assembly is suspended in the installation space through a suspension device; the soft sealing film is arranged in the mounting space, one end of the soft sealing film is connected with the shell, the other end of the soft sealing film is connected with the air pump assembly, and the soft sealing film is used for dividing the mounting space into a first cavity and a second cavity; the air pump assembly comprises an air inlet end and an air outlet end, the air inlet end is unidirectionally communicated with an air path of the air outlet end, the air inlet end is located in the first cavity, the air outlet end is located in the second cavity, and the air outlet end is communicated with the air outlet through the second cavity; the air pump assembly further comprises a driving mechanism and at least one actuating piece, and the driving mechanism and the actuating piece are used for pressurizing air sucked from the air inlet end. The suspension type double-cavity air pump device is convenient to assemble, and vibration and noise generated during working can be effectively reduced.

The milk warmer is provided with a machine body, a cavity for containing a milk bottle is formed in the machine body, and the machine body is further provided with an air bag assembly and an air pump assembly; the air bag assembly comprises an air bag, a heating piece and an air bag lower cover. The air bag is arranged in the cavity and is distributed around the side wall of the feeding bottle, and the air bag clings to or leaves the side wall of the feeding bottle along with the change of air pressure in the cavity; the heating element is connected to the airbag and heats to preserve heat of the feeding bottle; the air bag lower cover is arranged at the bottom of the cavity, supporting ribs for supporting a feeding bottle are arranged on the upper surface of the air bag lower cover, and an air channel is formed in the air bag lower cover corresponding to the center of the cavity; the air pump assembly is communicated with the air channel; according to the utility model, the air bag is deformed to wrap the side wall of the feeding bottle, and the heating element has a heating function, so that liquid in the feeding bottle is kept warm; the air channel is arranged in the center of the cavity, so that multi-angle uniform air outlet and even 360-degree uniform air outlet can be realized, all parts of the air bag are uniformly deformed at the same time, and the fitting degree of the air bag and the outer wall of the feeding bottle is better.

The massager comprises a machine shell body, an air pump assembly, a control circuit board and a massage assembly. The air pump assembly and the control circuit board are arranged in the machine shell body. The machine shell body comprises a massage end and a handheld end. The massage assembly comprises a cavity, an air bag, a suction nozzle and a vibration rod. The massage end is provided with an opening portion with one end open, the cavity is arranged in a containing cavity formed in the opening portion, the end, close to the opening of the opening portion, of the cavity is in airtight connection with the air bag, the suction nozzle is movably installed on the opening of the opening portion, and the vibration bar is arranged between the suction nozzle and the air bag and connected with the control circuit board to be controlled to vibrate. The cavity is provided with an air hole connected with the air pump assembly, when the air pump assembly pumps or feeds air into the cavity to enable the air pressure in the cavity to change, the air bag correspondingly deforms in the cavity along with the change of the air pressure, so that air flow is generated in the suction nozzle. By adopting the massager provided by the invention, the sucking massage effect of the suction nozzle is softer, the force control is more uniform and finer, and the massage result is abundant by combining with the vibrating rod.

The present invention provides a hair straightening comb with electric-heating and atomization, including a hair straightening comb body, a control circuit board disposed inside the hair straightening comb body, a cartridge assembly for essential oil atomization, and teeth at one end of the hair straightening comb body, where the cartridge assembly includes a ceramic heating strip for heating atomized essential oil, and mist outlets for spraying mist are further provided on the hair straightening comb body. An air pump assembly for pumping mist from the cartridge assembly part to the mist outlet parts is further disposed inside the hair straightening comb body, where the air pump assembly is interconnected to the cartridge assembly through an air inlet hose, and the mist outlets are interconnected to the cartridge assembly through a mist outlet hose; and the teeth includes anti-scald teeth and shape-matching hardware teeth.

The invention discloses a caliper rectangular ring assembling device which comprises a pressing rod and a clamping device, the pressing rod comprises a rod body internally provided with an air passing channel and a cover plate fixed to one end of the rod body, and a mounting gap communicated with the air passing channel is formed between the cover plate and the rod body and used for containing a rectangular ring; and the air pump assembly communicates with the end, away from the mounting gap, of the air passing channel so as to exhaust or ventilate the mounting gap through the air passing channel. According to the caliper rectangular ring assembling device provided with the mounting gap and the air passing channel, after an operator completes insertion connection of a pressing rod and calipers, a rectangular ring is just flatly clamped into a rectangular ring mounting groove, the whole mounting process is simple and convenient, the operator does not need to take the rectangular ring to press the rectangular ring into the rectangular ring mounting groove, and the working efficiency is improved. The rectangular ring is prevented from falling into the concave position of the calipers in the manual installation process, the problem that the rectangular ring cannot be pressed flat due to the fact that the rectangular ring is not aligned with the rectangular ring installation groove is also avoided, the assembly difficulty is reduced, the assembly time is saved, and the assembly efficiency is improved.

The utility model discloses a pumping and diffusing dual-purpose gas circuit structure on a gas detector. The pumping and diffusing dual-purpose gas circuit structure comprises a calibration cover assembly, a shell, a sensor assembly, a gas pipe bracket and a gas pump assembly, the calibration cover assembly is detachably connected with the shell; a plurality of air holes are formed in the shell; one end of the tracheal stent is communicated with the air hole of the shell, and the other end is communicated with the air pump assembly; the sensor assembly is arranged under the air hole. The air pump assembly is arranged below the sensor assembly; the calibration cover assembly comprises a filtering assembly, a rotating assembly, a calibration cover and an air chamber frame; the filtering assembly is arranged at one end of the calibration cover, and the air chamber frame is arranged in the calibration cover and arranged above the shell; one end of the rotating assembly penetrates through the calibration cover and the air chamber frame and then is detachably connected with the shell. According to the utility model, the pump suction mode and the diffusion mode can be freely switched, and the pump suction mode and the diffusion mode share the same calibration cover assembly for calibration, so that the consistency of the detection precision of the pump suction mode and the diffusion mode can be ensured.

An air supply system includes an air pump assembly to generate compressed air, a liquid circulation pipe to circulate a cooling liquid, a sensor, and a programmable control board. The air pump assembly includes an outer sealed box enclosing an inner sealed box, which further encloses air pump machinery. A first set of springs are disposed between the air pump machinery and the inner sealed box and a second set of springs are disposed between the outer sealed box and the inner sealed box. The liquid circulation pipe connects the air pump machinery to liquid cooling components outside the outer sealed box. The sensor is coupled to an output of the air pump assembly to measure a characteristic of the compressed air during operation. The programmable control board controls the speed of a motor in the air pump machinery according to program instructions and measurements of the sensor.

The air valve comprises an upper cover, a bottom cover, an air pump assembly and a motor, the upper cover is provided with an air outlet, the bottom cover is provided with an air charging and discharging port and an air inlet groove, the air pump assembly is arranged between the upper cover and the bottom cover and used for connecting or disconnecting an air path between the air outlet and the air charging and discharging port, and a pump cavity is defined by the air pump assembly and the bottom cover. A rotatable valve body is arranged in the pump cavity, the valve body is eccentrically connected with the air pump assembly, an output shaft of the motor extends into the pump cavity and is connected with the valve body, the valve body is provided with a valve cavity, the valve cavity is provided with an air guide hole and an air inlet hole, the air guide hole is communicated with an air channel of the pump cavity, the air inlet groove is communicated with the air inlet hole, and a plugging block is movably arranged in the valve cavity. The plugging block plugs the air guide hole under the action of centrifugal force, so that the air outlet, the pump cavity and the inflation and exhaust port form an air path, and when the motor stops working, the air guide hole, the air inlet hole, the air inlet groove, the pump cavity and the inflation and exhaust port form an air path. According to the utility model, the processing cost and the processing difficulty are greatly reduced, and the use stability of the air valve is improved.

This invention relates to the field of soil sampling device technology, and more particularly to a mountable UAV soil sampling device for land reclamation. The device comprises an upper shell, a lower shell, a drilling assembly, and an air pump assembly. The upper shell is fixedly mounted on the top of the lower shell via a mounting buckle, which is then bolted to both the upper and lower shells. A bracket is fixedly mounted on the bottom of the lower shell. This invention, by installing an outer cylinder outside the guide cylinder, creates a double-layered cylindrical guiding structure. This structure ensures the stability of the drill bit sampling without affecting soil sample transmission. Furthermore, in conjunction with the air pump assembly, high-pressure airflow is used to backwash and clean the soil movement path of the drill bit, guide cylinder, and outer cylinder. This allows for the cleaning of the soil movement path during sampling point changes, significantly reducing the risk of cross-contamination between soil samples from different sampling points.

The utility model provides a kind of air bag control box and air bag mattress, it is related to air bag mattress technical field, comprising: shell, air pump installation shell, flexible shock-absorbing cover, air pump assembly, solenoid valve group and control circuit board.Outside shell has assembly cavity;Air pump installation shell is suspended in assembly cavity by first elastic damping member;Flexible shock-absorbing cover is suspended in air pump installation shell by second elastic damping member;Air pump assembly is installed in flexible shock-absorbing cover;Solenoid valve group is suspended in assembly cavity by third elastic damping member, and is communicated with air pump assembly by air pipe;Control circuit board is installed in assembly cavity, and respectively with air pump assembly and solenoid valve group electric connection, to control the working of air pump assembly and solenoid valve group.Such, make it can reduce air pump and solenoid valve working noise and reduce the advantage of vibration.

The invention relates to the technical field of detection devices, and discloses a non-spectral detection device and a carbon dioxide extraction sampling detection method.The non-spectral detection device comprises a base pipe and a detector fixed to the base pipe, an air pump assembly is fixed to the top of the detector, and an air inlet pipe is installed at the input end of the air pump assembly; one end of the gas inlet pipe penetrates through the base pipe and extends into the base pipe, a probe is installed at the end, located in the base pipe, of the gas inlet pipe, and the gas pump assembly is used for conveying gas in the base pipe into a detector. By arranging the air pump assembly, air can be pumped into the paper detector, by arranging the waste heat assembly, the air can be preheated, the situation that the air is condensed in a pipeline to cause blockage is avoided, by arranging the water absorption assembly, moisture in the air is absorbed by a moisture absorber, and the water absorption efficiency is improved. The detector can be prevented from being corroded by acidic substances formed after water vapor is doped with gas, the detection effect is guaranteed through the pre-treatment mode of preheating and water absorption, and the service life of equipment is prolonged.

This utility model discloses an airtightness testing device, including a support structure, a testing structure, and an airtightness tester. The testing structure includes a lower mold fixed to the top of the equipment base and an upper mold fixed to the bottom of a transmission structure. The upper mold is connected to the transmission structure mounted on a fixed plate, and the transmission structure drives the upper mold to reciprocate vertically. Air pump assemblies are connected to both the lower and upper molds. A waterproof connector to be tested for airtightness is provided between the upper and lower molds, and the bottom of the upper mold and the top of the lower mold are respectively provided with a connecting groove and a insertion groove for the waterproof connector. The two ends of the waterproof connector communicate with the interior of the upper and lower molds, respectively. A pre-installed airtightness tester for testing the internal air pressure of the mold is connected to both the upper and lower molds. This utility model solves the problem that internal damage cannot be visually identified because the sealing gasket at the installation position of the waterproof connector is generally embedded in the connector.

An air supply system includes an air pump assembly to generate compressed air, a liquid circulation pipe to circulate a cooling liquid, a sensor, and a programmable control board. The air pump assembly includes an outer sealed box enclosing an inner sealed box, which further encloses air pump machinery. A first set of springs are disposed between the air pump machinery and the inner sealed box and a second set of springs are disposed between the outer sealed box and the inner sealed box. The liquid circulation pipe connects the air pump machinery to liquid cooling components outside the outer sealed box. The sensor is coupled to an output of the air pump assembly to measure a characteristic of the compressed air during operation. The programmable control board controls the speed of a motor in the air pump machinery according to program instructions and measurements of the sensor.

The invention relates to an air fryer with an oil supplementing device, the air fryer comprises a fryer main body and a cooking cavity arranged in the fryer main body, and the oil supplementing device is arranged above the cooking cavity. The oil supplementing device comprises an oil tank, an atomizing nozzle and an air pump assembly, a nozzle of the atomizing nozzle extends into the cooking cavity, the air pump assembly is communicated with the atomizing nozzle and the oil tank so as to pressurize the atomizing nozzle and the oil tank, and an oil conveying pipeline communicated with the atomizing nozzle and the oil tank is arranged between the atomizing nozzle and the oil tank. And a control valve is arranged on the oil conveying pipeline. According to the air fryer, the oil supplementing device is arranged above the cooking cavity, oil is atomized through the oil supplementing device and then sprayed into the cooking cavity, oil supplementing can be conducted on food in the cooking cavity, and therefore the cooking effect of the food and the use experience of a user are improved.

The present invention provides an air conditioner belonging to the field of air conditioning technology, comprising a cleaning device, an air inlet filter, and a drain pipe. The cleaning device includes a dust box having a dust collection box at its bottom, an air pump assembly disposed within the dust box, and the air pump assembly capable of being controlled to suction or blow air. The dust box is connected to a dust suction pipe and an air blow pipe communicating with its internal space, the dust suction pipe being disposed adjacent to the air inlet filter, the air blow pipe being connected to the drain pipe, a filter being disposed at the air intake of the air pump assembly, and the dust box being disposed below the filter. The present invention achieves the dual function of the cleaning device cleaning the air inlet filter and the drain pipe, and has a simple structure.

The utility model relates to an upper spraying type aromatherapy machine with an integrated atomizing head main body, which comprises a shell, an atomizing head main body, an atomizing head and an atomizing head main body, and is characterized in that the shell is provided with an adapter clearance groove which is concave inwards; the atomization assembly is arranged in the shell and comprises an atomization head upper cover, an upward spraying type atomization core, an air pump assembly, an essential oil bottle and an atomization head main body, the atomization head upper cover is arranged at the upper end of the atomization head main body, and a fan air guide channel is formed after the atomization head upper cover and the atomization head main body are assembled; an atomizing chamber is designed in the atomizing head main body, a mist outlet is formed in the upper side of the atomizing head main body, and the mist outlet is communicated with the atomizing chamber; the upper end of the essential oil bottle is connected with the atomizing head body, and the upward spraying type atomizing core is arranged in the atomizing cavity. The air pump assembly is communicated with the upward spraying type atomizing core through the atomizing head main body, so that essential oil in the essential oil bottle enters the upward spraying type atomizing core and is atomized; the PCB is arranged in the shell, a power module is arranged on the PCB, and the atomization assembly is electrically connected with the PCB; and the adapter is arranged in the mounting groove, and the adapter is electrically connected with the PCB. By the adoption of the structure, the structural sealing performance and stability of the aromatherapy machine are improved, the working procedure cost and the labor cost are reduced, and meanwhile the atomization effect of essential oil is improved.

The invention provides a two-stroke air entrapment direct injection methanol engine. The two-stroke air entrapment direct injection methanol engine comprises an air cylinder body crankcase assembly, a crankshaft assembly, an engine oil lubricating assembly, an air inlet assembly, an oil supply assembly, a starting assembly, an air pump assembly and a control assembly. According to the application, the methanol use environment is met by adopting the design of internal preheating and combustion chamber preheating of the special fuel pump for methanol and heat energy generated by air compression in the fuel rail, and fuel atomization is promoted by gas pressure and high-speed flow generated by air compression of the direct-connected air pump assembly through a gas-entrained injection technology; meanwhile, uniform mixing of gas and fuel oil is enhanced, homogeneous combustible mixed gas is more easily formed in the combustion chamber, the first-stage fuel oil pump and the second-stage fuel oil pump are connected in series, and the stability of the using pressure of methanol fuel oil is effectively guaranteed; according to the preheating function, the engine can rapidly enter the optimal working temperature in the low-temperature environment during low-temperature starting and low-temperature operation, and therefore the emission performance and the working performance of the engine are improved.

The utility model provides an integrated air pump driving structure, and relates to the technical field of engine air pumps, and the integrated air pump driving structure comprises a driving assembly and an air pump assembly, and is provided with a driving crankshaft, a driving shaft, a crankshaft box, a cylinder sleeve, a moving piston and a transmission connecting rod; the problems that an existing air pump is mainly driven on an engine through a belt, a chain, a cam, a gear and the like, the design or change of the engine is large through the arrangement mode, the requirement for the transverse size space of the engine is high, an air pump driving mechanism is complex, and constraint space arrangement is limited can be solved, and the problem solving process is simple. The driving crankshaft is used for driving the driving shaft to rotate, the driving shaft drives the transmission connecting rod in the crankcase to move, the transmission connecting rod drives the moving piston to move for air pumping, and the driving shaft structure is adopted, so that the displacement of the air pump is greatly increased, the weight and the size of the air pump are effectively reduced, the mounting space of the air pump is effectively reduced, and the production cost is effectively reduced.

The utility model discloses a powder mixing device with a filtering function. The powder mixing device comprises a support, a driving motor, an output shaft, a supporting shaft, a mixing barrel, a first transmission assembly, a stirring assembly, a transmission part, a second transmission assembly, a filter screen, a door plate and an air pumping assembly. Wherein the driving motor is fixedly mounted on the bracket; the output shaft is fixedly mounted at the output end of the driving motor; the supporting shaft is fixedly installed at the end, away from the driving motor, of the support. The mixing barrel is rotationally mounted on the supporting shaft; the first transmission assembly is arranged between the mixing barrel and the output shaft; the stirring assembly is arranged in the mixing barrel; the transmission part is fixedly mounted at one end of the output shaft; the second transmission assembly is arranged between the stirring assembly and the transmission part; the filter screen is fixedly mounted on the mixing barrel; the door plate is movably arranged on the mixing barrel and is matched with the filter screen; the air pumping assembly is arranged on the support. Through cooperation of the structure, non-blind area mixing and stirring can be achieved, the mixing effect is improved, the mixing efficiency is improved, and the mixing cost is reduced.

The present invention discloses an air pump assembly and a cleaning machine, comprising an air pump and a housing. A sealing ring is provided at the upper end of the air pump, and the upper end of the air pump is mounted within the housing via the sealing ring. The housing provides a suitable installation environment for the air pump, and a corresponding vibration reduction structure is added to the air pump to achieve a noise reduction effect.

The utility model provides fragrance equipment with switchable air pump components, which comprises a main body, a main control unit, a first air pump component, a second air pump component and at least one atomizing head are arranged in the main body, an output air passage of the first air pump component is respectively communicated with a switch valve of each atomizing head, and an output air passage of the second air pump component is communicated with a switch valve of each atomizing head. An output air passage of the second air pump assembly is also communicated with the switch valves of the atomizing heads respectively; the switch valves, the first air pump assembly and the second air pump assembly are electrically connected with the main control unit respectively; when the fragrance equipment is in a first state, the main control unit controls the first air pump assembly to start and convey air to the atomizing head, and the second air pump assembly is closed; and when the fragrance equipment is in the second state, the first air pump assembly does not transmit air, and the main control unit controls the second air pump assembly to start and transmit air to the atomization head. When the first air pump assembly cannot operate, the second air pump assembly can be started to replace the first air pump assembly, and the situation that the atomizing head is idle when the first air pump assembly does not convey air can be avoided.

The present invention relates to the field of medical devices, and more specifically to a hemostatic fixation device for combat injuries at sea. The device comprises a frame, mounted with a hemostatic module, a fixation module, and an intelligent monitoring module. The frame comprises several split, angle-adjustable arc-shaped components, each connected in series via a flexible connector. The hemostatic module includes a gradient pressure airbag assembly, comprising a central pressurizing bladder and a peripheral stabilizing bladder, which is connected to a multi-stage air pump assembly mounted on one side of the frame. The intelligent monitoring module comprises a controller, an accelerometer, a pressure sensor, a microwave blood flow sensor, and a bioimpedance monitoring electrode, all of which are signal-connected to the controller. The present invention aims to overcome the shortcomings of existing technologies and provide an efficient, reliable, and intelligent solution for emergency treatment of combat injuries at sea.

This invention relates to the field of medical device technology, specifically to a fully automatic medical auxiliary breath-holding device, comprising an inflatable pressure abdominal binder and a head support fixation base, as well as an inflatable pressure nasal clip mechanism disposed on the head support fixation base. The head support fixation base also includes a massage mechanism and a main control box containing three sets of air pump assemblies. These three sets of air pump assemblies are respectively connected to the inflatable pressure abdominal binder, the massage mechanism, and the inflatable pressure nasal clip mechanism via three air supply pipes. The main control box is wirelessly connected to a remote control box. This invention solves the problems of existing medical breath-holding auxiliary devices, such as simple functions, insufficient automation and applicability, susceptibility to patient head movements affecting breath-holding effectiveness, low success rate and poor image quality for some patients with poor cooperation, time-consuming and laborious procedures, and inability to alleviate patient anxiety during examinations, which can affect breath-holding duration and effectiveness.