28 results about "Air chamber" patented technology

A device is provided for operating inflation and deflation valves of an air chamber of a scuba diver's balancing jacket. The device comprises inflation and deflation valves and a push-button for operating the valves that can be controlled by the diver. The device also has a handgrip projecting forwardly from a side position on a lower edge of the jacket, the push-button being situated on the handgrip.

A plenum (12, 60) having a plurality of heat fins (40, 72) and also a receptacle (20) for receiving a heat generating component (22) in a friction fit arrangement. The plenum has a plurality of passageways (14, 66) defined by the plurality of fins arranged in rows, and also includes a plurality of openings (50, 76) disposed between the fins, The receptacle frictionally receives a respective heat generating component (22), and wicks heat to the fins. Air communicating through the passageways defined by the fins removes heat from the fins, and also creates a venturi effect to remove heat from within a housing via the openings to further cool the portable electronic device.

The invention discloses an on-line detection instrument for hydrogen fluoride gas. The on-line detection instrument comprises a detection system and a central processing system, wherein the detection system comprises a sampling device and an HF (Hydrogen Fluoride) gas sensor which is connected with the central processing system; the sampling device comprises a gas detection chamber; the gas detection chamber is provided with a gas inlet and a gas outlet which are connected with a GIS (Geographic Information System) high-pressure gas chamber; the HF gas sensor is fixed on the gas detection chamber; a testing end of the HF gas sensor is positioned inside the gas detection chamber; gas from the GIS high-pressure gas chamber enters the gas detection chamber; the HF gas sensor is used for detecting the concentration of the HF gas in the gas, and used for transmitting detection information to the central processing system to be processed so as to obtain the content of the HF gas. The invention further discloses a method for quantitatively detecting the hydrogen fluoride gas by using the detection instrument. By utilizing the detection instrument and the method, the content of the hydrogen fluoride gas can be rapidly and accurately detected in real time, and SF6 inside SF6 electric equipment is not lost.

The invention provides a method and a device for detecting leakage of an air conditioner coolant. The detection device comprises an outdoor unit and an indoor unit; a compressor communicates with a coil pipe of the outdoor unit by virtue of a four-way valve; the coil pipe of the outdoor unit is provided with an expansion valve; an air collection chamber is arranged inside the indoor unit; a coolant concentration sensor is arranged inside the air collection chamber; a temperature and humidity sensor is arranged inside the indoor unit; the indoor unit is provided with a controller; the indoor unit is provided with a fan; and the controller is used for judging whether the coolant is leaked or not according to a detection result and a pre-storage relationship and executing a corresponding control program. According to the method and the device for detecting leakage of the air conditioner coolant provided by the invention, a multi-level different-stage same-element difference value comparison method is adopted, an inner detection element and an outer detection element are used for alternating detection so that detection factors are corrected, misjudgment is reduced, the detection accuracy of coolant leakage is improved, further damage of the compressor of an air conditioner is prevented to a great extent when the air conditioner is in use, and the comfort level of user experience isincreased.

The invention discloses a safety air bag which comprises an air pocket and two gas generators. The air pocket is divided into a first air chamber and a second air chamber through a separating wall. The two gas generators are respectively used for correspondingly aerating the first air chamber and the second air chamber. The air pocket of the safety air bag is divided into two air chambers, the two gas generators are arranged and respectively used for aerating the two air chambers, and consequently aeration efficiency of the air pocket can be improved and required time that the air pocket is completely unfolded is shortened. Moreover, different ignition timing and aeration pressure can be adopted for the two gas generators. The aeration direction of air can be guided through the air pocket. The aeration direction is changed from a direction facing a passenger to a transverse direction. The aeration time can be shortened, and simultaneously stiffness characteristics of different portions of the air bag can be more flexibly controlled and the head, the neck and the chest of the passenger can be effectively protected from being injured.

An ultrathin loudspeaker-type radiator comprises a heat conduction chamber, a vibrating diaphragm, a voice coil and a magnetic apparatus, wherein the magnetic apparatus generates contrary magnetic loops at two side edges of the voice coil, and the magnetic loops are vertical to the side edges, the voice coil divides the heat conduction chamber into two air chambers, side walls of the two air chambers both have air vents, the voice coil and the vibrating diaphragm are fixed into one piece, a terminal of the voice coil extends out of the heat conduction chamber and is used for receiving input of alternating current, and the magnetic apparatus acts with the alternating current in the voice coil to generate an Ampere force to drive the voice coil and the vibrating diaphragm to vibrate in the heat conduction chamber so as to exhaust or intake air in the two air chambers from the correspondingly air holes. The invention adopts the magnetic apparatus which generates contrary magnetic loops, vertical to the two side edges of the voice coil, at the two side edges of the voice coil to adapt to a condition that current in two side edges are contrary, the intensity of a magnetic field of the magnetic apparatus in the horizontal direction is enhanced, stronger magnetic performances under the same power are achieved, the vibrating strength of the voice coil is improved, the heat radiation capacity of the radiator is improved, and the technical support is provided for an ultrathin structure.

The invention discloses an automatic sealing and dual-level filtering device with a built-in Venturi tube. The automatic sealing and dual-level filtering device comprises a first filtering cylinder, asecond filtering cylinder, the Venturi tube, a blocking plug and an automatic plugging device, wherein the Venturi tube is fixed to the middle of a partition plate, a diversion channel is arranged inside the Venturi tube, one end of the diversion channel is communicated with a first-level filtering air chamber, and the other end of the diversion channel is communicated with a second-level filtering air chamber; the first-level filtering air chamber is arranged in the first filtering cylinder, and is provided with the first filtering cylinder, a first longitudinal folding filter and a first transverse folding filter from inside to outside in sequence; the second-level filtering air chamber is communicated with the interior of the second filtering cylinder, and is provided with the second filtering cylinder, a second longitudinal folding filter and a second transverse folding filter from inside to outside in sequence. Dual-level filtering of air is achieved; when a filtering device is clogged, a connection rod of the automatic plugging device moves forwards and plugs the Venturi tube, and people are conveniently reminded to timely replace and clean the filtering device.

The invention relates to an electric-bag combination type flow-dividing three-state dust collector. The electric-bag combination type flow-dividing three-state dust collector comprises an electric dust collector, a bag dust collector, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is connected with the electric dust collector; the electric dust collector is communicated with the bag dust collector and comprises an electric dust collector box; the electric dust collector box is provided with an electric dust collector air outlet; an electric dust collector air outlet valve is arranged at the electric dust collector air outlet; the bag dust collector comprises a bag dust collector box and a bag dust collector air purification chamber which is positioned above the bag dust collector box and is provided with an air outlet of the bag dust collector air outlet; a bag dust collector air outlet valve is arranged at the air outlet of the bag dust collector; the air outlet of the electric dust collector and the bag dust collector air outlet are communicated with the air outlet pipe simultaneously. The electric-bag combination type flow-dividing three-state dust collector has the combined advantages of the electric dust collector and the bag dust collector; partition running, mutual switching and simultaneous working can be realized; the characteristics of the electric dust collector and the bag dust collector are fully played; each piece of equipment is protected, and meanwhile, requirements on environment protection are met.

An air spring in a modern automobile suspension system plays an important role in improving automobile ride performance and handling stability as well as protecting roads and cargos. In order to effectively adjust dynamic stiffness of the air spring, a main air chamber is connected with a sub air chamber, and throttle valves on the channels of the main air chamber and the sub air chamber are changed. A control signal for stiffness adjustment is acquired by a multipath sensor and sent to a computer for processing; and after the signal is processed, an action command is sent, and the stiffness of the air spring is adjusted. But the response time lag of the control mode is slightly larger, and the cost is high. The invention aims at solving the difficult problems so as to develop a novel self-adaptive air spring capable of adjusting the dynamic stiffness in a pressure difference manner. According to the air spring, the throttling pressure difference on the channels of the main air chamber and the sub air chamber is controlled by directly using a pressure signal in an air bag, so that the effect of continuously adjusting stiffness is achieved. The throttle valves are controlled through the reverse impact pressure difference of the main air chamber and the sub air chamber, so that the impact on an automobile body from a bump is weakened. The air spring provided by the invention has the advantages of simple structure, quick and reliable response, low cost and convenience for adjusting static stiffness.

The invention discloses a novel centrifugal sand pump. A pump shaft is perpendicularly arranged inside a pump shell. A pump impeller is connected with the lower end of the pump shaft. The pump impeller is arranged inside the pump shell. The pump shell is connected with an isolation hood. The isolation hood is connected with a supporting body. A bearing is arranged between the pump shaft and the supporting body. The bearing is fixed through a bearing end cover. A packing box is arranged at the position where the isolation hood and the pump shaft are connected. An air chamber is arranged at the bottom of the packing box. A suction inlet is formed in the isolation hood. An outlet is formed in the right side of the pump shell. A shaft seal is arranged inside the packing box. The shaft seal is fixed through a shaft sealing pressing cover. The novel centrifugal sand pump is simple in structure, convenient to operate and small in occupied area, slurry and the packing box are isolated through the air chamber so that the slurry can make no contact with the shaft seal, the problems that the shaft seal is abraded by slurry and the slurry is leaked are solved fundamentally, the cost of replacing the shaft seal is saved, and pollution caused by slurry leakage to the environment is avoided.

The invention relates to an insulating pull rod characteristic testing device. The insulating pull rod characteristic testing device comprises a closed air chamber with an observation window, and further comprises a voltage loading piece and a grounding piece, wherein the voltage loading piece and the grounding piece are located in the closed air chamber or extend into the closed air chamber and are oppositely arranged at an interval so as to form a mounting fracture in the closed air chamber; and the voltage loading piece and the grounding piece are respectively provided with a connecting endused for being connected with a to-be-tested insulating pull rod located at the mounting fracture. The testing device further comprises a force loading mechanism which is in transmission connection with the grounding piece so as to apply tension to the to-be-tested insulating pull rod through the grounding piece. The to-be-tested insulating pull rod can simultaneously bear the superposition effect of the voltage load and the mechanical acting force, the voltage load and the mechanical acting force are mutually coupled and influenced, and the test environment of the to-be-tested insulating pull rod is consistent with the actual use environment of the to-be-tested insulating pull rod, so that the tested insulating performance of the to-be-tested insulating pull rod is closer to the actual situation, and the reliability is higher.

The invention discloses a vehicle battery module based on PCM cooling. The vehicle battery module comprises a casing box composed of a composite phase change material; the surface of the casing box isrecessed downward to form a plurality of battery holes; the outer side surface of the casing box is wrapped with an annular air duct plate, so that the outer side surface of the casing box and the inner side surface of the air duct plate form a closed air duct cavity; a partition plate is fixed in the air duct cavity; the partition plate divides the air duct cavity into a first air chamber and asecond air chamber, which are relatively sealed; the first air chamber is provided with an air outlet tube; the second air chamber is provided with an air inlet tube; the air inlet tube is connected with a wind pump; the vehicle battery module further comprises cooling fans; one end of the cooling fan is fixed on the outer side surface of the casing box, and the other end penetrates the air duct plate and extends to the outside. The vehicle battery module based on PCM cooling solves the problem that when the battery temperature is too high, the PCM material can not satisfy the heat dissipationeffect; at the same time, the temperature inside the PCM material is difficult to exchange heat with the outside, which causes the temperature inside and outside to be uneven, which affects the heatdissipation performance.

The invention relates to die-casting equipment for 5G automobile parts. The die-casting equipment comprises a base, a control cabinet, a boiler, a top plate, an air pump, a die-casting mechanism and aplurality of vibration mechanisms, wherein each vibration mechanism comprises a bottom plate, a vertical plate, a motor, a roller, a transmission assembly, a vibration assembly and two moving assemblies, each moving assembly comprises a driving shaft, a rolling wheel and a belt, each vibration assembly comprises a first air cylinder, a first piston, a second air cylinder, a second piston, a connecting pipe and a vibration unit, the die-casting mechanism comprises a reciprocating assembly, a reciprocating plate, a die, a liquid lifting pipe, an inert gas chamber and two gas guide assemblies, and each gas guide assembly comprises a gas guide chamber, a sealing plate and two gas guide pipes. According to the die-casting equipment for the 5G automobile parts, the whole body of a boiler is knocked through the vibration mechanisms, so that the boiler vibrates, bubbles of internal molten metal are eliminated, and in addition, through the die-casting mechanism, the efficiency of metal entering the die is conveniently improved, the die is conveniently filled with the molten metal, the production quality is improved, and therefore the practicability of the equipment is improved.

The invention discloses a novel initiating explosive charging structure detonator. The novel initiating explosive charging structure detonator comprises a detonator shell, a sealing plug, a paper pad,a detonator ignition element, an air chamber, a plastic plug, a hollow explosive chamber (initiating explosive charging chamber), a main explosive charging chamber and an energy gathering cavity. Asfor the detonator ignition element, electric detonators and non-electric detonators are both applied to existing detonator ignition elements (electric and non-electric). The plastic plug has a novel and creative structure and has parameters such as the aperture, the taper angle, the outer diameter, the height and the like of the hollow explosive chamber. The plastic plug is internally provided with a transverse cylindrical and circular truncated cone-shaped hollow explosive chamber. The hollow explosive chamber serves as the initiating explosive charging chamber of the detonator. Through the novel initiating explosive charging structure detonator, the initiating explosive charging amount of the detonator is reduced without affecting output energy of the detonator, and pollution of DDNP tothe environment can be reduced. The novel initiating explosive charging structure detonator is provided with the novel and creative plastic plug replacing a reinforcing cap, the production cost of thedetonator is lowered, and economic benefits of engineering blasting is increased. Thus, the novel initiating explosive charging structure detonator is suitable for application and popularization.

The invention provides a current transformer for a CGIS, and the current transformer comprises an air chamber, which is internally provided with an iron core, the outer layer of the iron core is woundwith a low-voltage secondary coil, and the outer layer of the low-voltage secondary coil is covered with a shielding layer; the measurement stage adopts a novel process combining a silicon steel sheet and a microcrystalline iron core, and the measurement precision requirement is ensured at 1% of test points and 120% of test points; the high-voltage electrical part is arranged in the gas chamber and surrounded by insulating gas; and a sealing groove is designed at a mounting position and adopts a sealing structure, so that the high-voltage part of the product is sealed and insulated in the gaschamber, and a secondary wiring terminal is arranged outside the air chamber to facilitate wiring operation.

The invention discloses a self-propelled wing of an ornithopter. The self-propelled wing comprises a left wing and a right wing, the left wing and the right wing are symmetrically distributed and arranged and have the same structure; the right wing comprises a wing inner wing main beam, an inner wing auxiliary framework, an inner wing upper wing panel (the inner wing main beam and the inner wing auxiliary framework are contained in the inner wing upper wing panel and are integrated with the inner wing upper wing panel), an inner wing air inlet valve, a reset elastic sheet, an inner wing lower wing panel and a middle spacer, and edges of the two sides of the inner wing upper wing panel and the inner lower wing panel are tightly glued; a middle spacer is bonded between the inner wing upper fin and the inner wing lower fin, so that the inner wing upper fin and the inner wing lower fin are connected to form a plurality of air chambers; the right wing comprises a wing outer wing main beam, an outer wing auxiliary framework, an outer wing upper wing panel, an outer wing air inlet valve, an outer wing lower wing panel and a middle spacer, the outer wing main beam and the outer wing auxiliary framework are contained in the outer wing upper wing panel and are integrated with the outer wing upper wing panel, and two side edges or two sides and front ends of the outer wing upper wing panel and the outer wing lower wing panel are glued.

The invention relates to the technical field of liquid level measurement, in particular to a differential pressure principle non-contact type liquid level sensor, the surface of an air chamber is fixedly connected with an air pipe, according to the principle that air pressure in a closed space is equal, different liquid levels are adopted for dividing the closed space into a plurality of closed spaces, and the liquid level detection function is achieved; the liquid level sensor not only can detect pure liquid with constant density, but also can detect non-pure liquid with uncertain density, such as a solid-liquid mixture, is particularly suitable for occasions with relatively high requirements on the relative detection precision of the liquid level in a mixed dirt discharge container, and well solves the problems that a contact type liquid level sensor is high in failure rate and low in detection precision. The liquid level sensor solves the problem that a conventional non-contact liquid level sensor cannot be installed due to a special use environment, is simple in structure and is not in contact with liquid to be detected, so that the production cost of the sensor is reduced, product faults caused by solid-liquid mixing are avoided, the product reliability is greatly improved, and the product quality is improved. And the use and maintenance cost of the product is greatly reduced.