60 results about "Spiracle" patented technology

The invention relates to the field of Rhodeus sinensis propagation, in particular to an artificial propagation technology. The invention mainly relates to an artificial propagation technology for Rhodeus sinensis. The artificial propagation technology for the Rhodeus sinensis comprises infrastructure equipment, parent fish selection, parent fish temporary rearing, parent fish maturing acceleration, parent fish spawning, ovum pickup and incubation, wherein the parent fish maturing acceleration, the parent fish spawning, the ovum pickup and the incubation are the core of the artificial propagation technology for the Rhodeus sinensis. According to the artificial propagation technology for the Rhodeus sinensis provided by the invention, a square pond of 1 mu or a cement pit of 10-50m<2> is selected, and is equipped with micropores to enhance oxygen. Parent fishes are characterized in that lateral lines are incomplete, and the back upper place of each spiracle of each parent fish has shoulder patches. Male fishes are red in eye socket, and bright in body color; the abdomen of each female fish has a strip ovipositor. 4.5g/l of VC is added to temporary rearing water; before put, the parent fishes are soaked in 5mmg/l of potassium permanganate for 10 minutes; the density of the potassium permanganate is lower than 0.5kg/m<3>, and a toad of 50g is cultivated in every 4m<2> of water to prevent fungal diseases. 10g/kg of minced earthworm meat and spirulina powder is fed. The female-male ratio of the parent fishes is 1:1, oxytocic is injected after the parent fishes are narcotized by 30mg/lMS-222, the ovum pickup is performed by using Sinanodonta woodiana or unio douglasiae which is 8-10cm wide, and the ratio of the Sinanodonta woodiana or the unio douglasiae to the fishes is 2:3. The Sinanodonta woodiana or the unio douglasiae is harvested once every two days, the ovum-contained Sinanodonta woodiana or the ovum-contained unio douglasiae is moved to a hatching pond, and corresponding ovum-free Sinanodonta woodiana or corresponding ovum-free unio douglasiae is supplemented.

A projectile has fins that are hingedly coupled to a fuselage. The fins are configured to wrap around the fuselage, assuming a location as close as possible to the fuselage, when the projectile is in a gun or launch tube. The fins have spiracles, one or more openings in each of the fins that allow pressurized gases to pass therethrough. The spiracles may be always open, or may open only when there is a sufficient pressure differential between the sides (major surfaces) of the fins. The spiracles allow release of pressurized gases that are trapped between the fins and the fuselage during the launch process. This prevents undesired outward movement or bending of the fins when the projectile reaches a muzzle brake during launch, a structure which causes a sudden release of pressure at radially outer locations of the launch tube.

The invention provides a d-limonene-containing mixed oil agent for killing solenopsis invicta buren and a method for killing the solenopsis invicta buren. The d-limonene-containing mixed oil agent consists of 80 to 90 percent of d-limonene and 10 to 20 percent of edible vegetable oil in percentage by volume. The method for killing the solenopsis invicta buren comprises the step of placing a carrier adsorbing the d-limonene-containing mixed oil agent into solenopsis invicta buren nests, wherein the using amount of the d-limonene-containing mixed oil agent in each nest is 10 to 50 ml. In the d-limonene-containing mixed oil agent and the method for killing the solenopsis invicta buren, the high volatility of the d-limonene can permeate the nests and wax protective layers of all the individual body surfaces of the solenopsis invicta buren in the nests can be damaged through high permeability of the d-limonene, so the blockage of the spiracles of the solenopsis invicta buren can cause asphyxiation and death of the solenopsis invicta buren; the edible vegetable oil has unique oil odor, so the number of solenopsis invicta buren escaping from the nests caused by the repelling reaction to the d-limonene can be reduced; the d-limonene-containing mixed oil agent enters the nests quickly by a cave administration method, so that all the individuals including the queen ant in each nest can be killed quickly and the aim of killing the solenopsis invicta buren nests is fulfilled.

The invention provides a flexible constraint rack for small animal mouth and nose exposing, which comprises a bottom bracket, an external fixation connector and a flexible screen frame, wherein the front end of the bottom bracket is connected with the external fixation connector of an internal air inlet pipe to provide suction gas to a small animal, a mouth-and-nose exposing air chamber with a circle of expiration air holes is arranged inside the external fixation connector, the interior of the external fixation connector can accommodate the head of the small animal under a breathing trial, fixing bolts at the edge of the two sides of the bottom bracket can be used for fixing a fixed tank and firmly mounting the flexible screen frame well, the small animal is fixed between the bottom bracket and the flexible screen frame, the flexible constraint net on the flexible screen frame can constrain the body of the small animal, a neck fixing hoop is used for fixing the neck of the small animal into a neck fixing and clamping hole, the tail of the small animal can go through the tail fixing and clamping hole, and excreta can be discharged into an excrement collection box from the excretory opening of the bottom bracket. The flexible constraint rack for small animal mouth and nose exposing has the benefits as follows: the small animal can be quickly fixed, gas leakage is avoided, the small animal is enabled to be comfortable and have no bad consequences of dyspnoea, struggling and the like, and the flexible constraint rack can be widely used in scientific researches to respiratory disease pathology and medicine development.

The invention provides an acipenseridae fish breeding device provided with air bags, and relates to the technical field of aquaculture. The device includes a culture box; the upper right of the culture box is provided with a water pipe; the water pipe communicates with water source; the upper end of the culture box is provided with a heat preservation shell; the left side of the heat preservationshell communicates with an exhaust fan; the connection section of the exhaust fan and the heat preservation shell is provided with a filter screen; an air outlet of the exhaust fan is connected to anL-shaped air pipe; and the L-shaped air pipe is uniformly provided with semicircular air bags, and the semicircular air bags are provided with air holes. Under the action of the exhaust fan, bait in the culture box can be flew upward from the bottom, so that the bait can float in the water all the time, and waste caused by the sinking and piling of the bait can be avoided; through the arrangementof the filter screen, filtering can be performed on impurities in air, and the impurities can be prevented from entering water to cause pollution to the water; and the device is simple in structure and convenient in operation, can perform automatic drying and stirring on the bait so that the bait can be prevented from wetting and caking, and is suitable for large-scale popularization.

The invention discloses an explosion-proof bottle cap for vacuum bottle, comprising a bottle cap, an air vent and a reducing valve, wherein, the air vent is arranged in the bottle cap and goes through the bottle cap. The reducing valve comprises a piston, two reset springs, an air gate and an air inlet hole. The piston is arranged in the air vent. One end of the reset spring is fixed on the inner wall of the air vent and the other end is connected with the upper end and the lower end of the piston. The air gate and the air inlet hole are arranged on the two sides of the air vent in the bottle cap, which are communicated with the hole wall of the air vent. The invention is simple in structure and the pressure difference can drive the piston to move whether the air pressure in the vacuum bottle increases or reduces, so the air gate and the air inlet hole are communicated with each other to exhaust or enter the air and the pressure difference in the vacuum bottle reduces in order to prevent explosion. The invention is suitable for all the vacuum bottle.

The invention discloses a pesticide for prevention and control of chili pests. The pesticide is prepared from weeping willow leaves, quick lime, pinus massoniana, cacumen biotae, sodium hypochlorite, sodium penta-chlorate, potassium permanganate, a mixture of kieselguhr and borax and clear water. The pesticide is environmentally friendly, free of environmental pollution, wide in raw material source, simple in preparation process and low in cost; through reasonable matching and using of agents, decocted fluid of the pinus massoniana matched with regulation of the potassium permanganate can dissolve waxiness on the surfaces of the pests and block spiracles of the pests to suffocate the pests; by adding the mixture of kieselguhr and borax and extracts of the weeping willow leaves and the cacumen biotae matched with the quick lime, the pesticide effect can be improved, the insect disease prevention effect can be improved to the maximum extent until imagoes and larvae of the pests are killed directly, and eggs of the pests can be effectively prevented from intruding again, so that the pesticide effect is lasting.

The invention provides an atomizer mask for a child. The atomizer mask for the child comprises a semi-ovoid main mask body, wherein the main mask body is provided with two one-way vent valves, and each one-way vent valve is formed by assembling a valve cover, an air blocking plate and a valve body and has a one-way guiding function on gas. When a patient inhales, the one-way vent valve at the air inlet position is turned on, the one-way vent valve at the air outlet position is turned off, and medicine particles are inhaled into the mask with inspiration of the patient and then inhaled into a respiratory system of the patient. When the patient exhales, the one-way vent valve at the air inlet position is turned off, the one-way vent valve at the air outlet position is turned on, and waste air is exhausted outside the body through the mask. The defects of poor suction tube type atomizing effect, easy atomizer pollution and caused cross infection are overcome, and the defects of medicine waste and treatment effect influence caused by an open air outlet atomizer mask are also overcome.

The invention discloses a double-air-bag tracheal foreign body extractor which comprises a hollow hose, an extraction air bag, a supporting air bag and a conical elastic soft head, wherein the extraction air bag, the supporting air bag and the conical elastic soft head are connected with the hollow hose. The longitudinal section of the extraction air bag is in a double-U shape, and the extraction air bag is made of materials which are good in elasticity and strength. The longitudinal section of the supporting air bag is in a shape like a Chinese character 'ao', and the supporting air bag is made of materials which are good in strength and poor in elasticity. The two air bags are connected with an inner cavity through air holes formed in the wall of the hollow hose encircled by the two air bags. The front end of the hollow hose is connected with the conical solid elastic head. The glottis is exposed through a laryngoscope, the extractor is coated with lubricating oil, when the conical elastic soft head is put into trachea and gradually put deep into the position close to the tracheal bifurcation, a moderate amount of gas is injected into the hollow hose through an injector until the hollow hose can be pulled out exactly, then the hollow hose is pulled out slowly until the hollow hose is close to the glottis, then the moderate amount of gas is injected again, the diameter of the front end of the hollow hose becomes small until the hollow hose can pass the glottis easily, the air bags are pulled out, and foreign bodies can be taken out. The double-air-bag tracheal foreign body extractor has the advantages of being convenient and fast to use, free of a bronchoscope, free of secondary injury and capable of taking out a plurality of small foreign bodies at a time.

A bushing for conducting air in a nail gun is arranged between an air chamber and a cylinder received in a housing of the nail gun. The bushing is adjacent to a bottom of a main valve for driving hitting motion of the nail gun. A number of main valve holes that are adjacent to the main valve are formed in a sidewall of the cylinder. At least one air inlet is formed in a bottom of a sidewall of the cylinder. An air flow passage is defined in the housing and is in communication with the main valve and the air hole. A valve plug which is configured for opening or closing the air flow passage is received in the air flow passage. The valve plug divides the air flow passage into an upper portion and a lower portion. The lower portion is formed in the housing. An annular end surface is formed on a top of the bushing. The annular end surface defines a main air inlet for the main valve. An end portion extends from the bushing and having the upper portion of the air flow passage formed therein. The bushing further includes at least one upper air hole in communication with the air chamber, the main inlet and the upper portion of the air flow passage.

The invention discloses a double-cavity flush sputum aspirator, comprising a sputum suction tube and a sputum collection bottle. The suction tube comprises a negative pressure tube and a suction tube. Both the negative pressure tube and the suction tube are hollow tubes. One end of every hollow tube is connected to the sputum collection bottle, and a line of the negative pressure tube and the suction tube is communicated with inner space of the sputum collection bottle. The other end of the suction tube is wrapped with a sponge wipe. The other end of the negative pressure tube is connected with a negative pressure joint which is provided with a raised thread. The side of the negative pressure joint is provided with a raised air hole. The inner wall of the suction tube is attached a liquid delivery tube. The double-cavity flush sputum aspirator enables mucus suction, oral cleaning and oral flushing to be carried out at the same time, the operating procedure is greatly simplified, oral cleaning time is shortened, pain of a patient is reduced, and labor intensity of medical staff is reduced; the double-cavity flush sputum aspirator has high cleaning capacity, is safe to use, and can collect the mucus in the sputum collection bottle so that sampling and chemical examination are convenient for medical staff.

The invention discloses an exhaust funnel silencer and relates to the field of car parts. The exhaust funnel silencer comprises a barrel, end covers are arranged at the two ends of the barrel, and thetwo ends of the barrel communicate with an air inlet pipe and an air outlet pipe separately. The right end of the air inlet pipe extends into the barrel, air holes are formed in the wall of the rightend of the air inlet pipe in rows and lines, a baffle is arranged at the right end of the air inlet pipe, a transition pipe is further coaxially connected to the right end of the air inlet pipe, andair holes are further formed in the wall of the left end of the transition pipe in rows and lines. The joint of the air inlet pipe and the transition pipe is sleeved with a resonance pipe, a cavity isformed by the resonance pipe, the air inlet pipe and the transition pipe, and the air holes are all located inside the cavity. A first porous plate is further arranged inside the barrel, the right end of the transition pipe penetrates through the first porous plate, and the air outlet pipe penetrates through the first porous plate leftwards. The exhaust funnel silencer is simple in structure, good in silencing effect and capable of achieving repeated expansion.

The invention discloses a mamestra brassicae nuclear polyhedrosis virus insecticidal mixture and an insecticidal synergistic method thereof. The mixture comprises a mamestra brassicae nuclear polyhedrosis virus preparation and is prepared by mixing the mamestra brassicae nuclear polyhedrosis virus preparation with parasitic nematodes serving as mediator organisms. Because the parasitic nematodes can actively find pests, invade pest bodies through various ways such as the oral cavity, the spiracle and the anus and parasitise in the pest bodies to cause numerous wounds, the virus infection timeis shortened, the probability of a mamestra brassicae nuclear polyhedrosis virus to infect the pests is increased, the lethal time of the pests is shortened, and the insecticidal efficiency of the mamestra brassicae nuclear polyhedrosis virus is improved.

The invention provides a novel dust remover. The novel dust remover comprises a loading part and a dust removal part arranged on the top of the loading part. A dust suction pipe is arranged on the left side of the dust removal part in a communicated mode. A dust suction head is fixedly arranged at the tail end of the dust suction pipe. A loading cavity with an upward end opening and a push-and-pull groove located below the loading cavity and provided with a rightward end opening are formed in the loading part. A discharge opening is formed between the loading cavity and the push-and-pull groove. A push-and-pull part is installed in the push-and-pull groove in a sliding mode, a loading groove with an upward end opening is formed in the push-and-pull part, a bottom plate stretching rightwards is arranged at the right end of the bottom wall of the push-and-pull groove, a first sliding groove with an upward end opening is formed in the bottom wall of the push-and-pull groove and in the bottom plate, a first sliding block is installed in the first sliding groove in a sliding mode, a screw rod is installed in the first sliding block in a spiracle fit mode, the right end of the screw rod is rotationally installed in the right end wall of the first sliding groove, the left end of the screw rod is connected with an actuator fixedly installed in the left end wall of the first sliding groove, a guide groove stretching left and right is formed in the front end wall and the rear end wall of the discharge opening, and a sliding plate stretching front and back is installed in the guide groove in a sliding mode.

A diving snorkel and an upper exhaust head thereof are provided. The upper exhaust head includes a main body and a float. The main body has a recess and an air passage. An upper end of the recess is provided with an air hole communicating with the air passage. A periphery of the air hole is provided with a sealing ring. The recess is provided with a pivot seat thereon. The float is rotatably disposed on the recess. The float has a pivot portion. The pivot portion is pivotally connected to the pivot seat.

The invention relates to a novel fish tank. The fish tank adopts a working principle of using a conical ovipositor and a fish-egg separation structure, wherein fish eggs enter a space that adult fishes cannot enter after the adult fishes discharge the fish eggs, so that danger to little fishes newly hatched from the adult fishes is reduced. The fish tank comprises a base, a component for control and information display, a power plug, a lamp tube, an electric heating component, a miniature air pump, an air outlet hole, an outer-layer glass shade, a heating hole, an inner-layer conical glass shade, a fish-egg channel, a miniature air vent, a top cover and an air vent.