57results about "Aerating valves" patented technology

An elongate diffuser (10) comprises a diffuser body (30), and a membrane (20) attached so that introduction of gas at a working pressure into the diffuser displaces part of the membrane (20) from contact with the diffuser body (10) providing an elongate sealed compartment (50) between the membrane (20) and a surface (32) of the diffuser body (30). The gas can pass from the compartment (50) through the membrane (20) for aeration of fluid in which the diffuser (10) is immersed. The diffuser body surface (32) which bounds the compartment (50) is recessed away from the membrane (20) in use, to contribute to the lateral cross sectional area of the compartment (50) and facilitate distribution of gas along the diffuser by the compartment (50). An automatic purge valve for purging water from a gas feed pipe of a diffuser is also disclosed.

The utility model relates to the technical field of telescopic ejector pins, in particular to a novel teat connecting rod of a detachable movable telescopic ejector pin, which comprises a connecting pipe, a limiting ring is arranged at one end of the connecting pipe, an inner groove is arranged in the limiting ring, and an inner thread is arranged on the inner wall surface of the front side end of the inner groove. An inner thread is arranged on the center body, a limiting ring is arranged on the center body, a nipple end is movably connected to one side of the limiting ring, an end threaded rod is installed on the nipple end and is in threaded connection with the inner thread, and a movable end is connected into the nipple end. According to the scheme, the possibility that the whole connecting rod needs to be replaced due to abrasion of a sealing face of the nipple end and damage of the center body is reduced; the complexity and time for replacing the nipple end and the ejector pin body are reduced, the effect that the device is convenient to disassemble is improved, parts which are easy to damage can be rapidly replaced, the working efficiency is greatly improved, the effect that the device saves more maintenance and replacement cost is improved, and the situation of waste is reduced.

The present invention provides an automatic water replacement assembly and a self-cleaning maintenance station. The automatic water replacement assembly comprises: a control apparatus and a water tank assembly. The control apparatus is provided inside the water tank assembly and configured to implement automatic injection of clear water into the water tank assembly. The water tank assembly comprises: a clear water tank body; a water inlet pipe configured to inject clear water into the clear water tank body; and a float valve provided in the clear water tank body and configured to vertically move as the height of the water surface in the clear water tank body changes. In response to the float valve located at a first position, the control apparatus controls the water inlet pipe to stop injecting clear water into the clear water tank body; in response to the float valve located at a second position, the float valve blocks an outlet of the water inlet pipe for water injection to the clear water tank body.

To provide a piping system capable of effectively suppressing contamination caused by drain water that splashes differently depending on the pipe shape.SOLUTION: A piping system 1 comprises a vertical pipe 2, a horizontal pipe 3, and an intake valve device 5 for adjusting pressure inside the pipes, wherein the intake valve device 5 is configured to include a first intake valve device 6 installed on the vertical pipe 2 and a second intake valve device 7 installed on the horizontal pipe 3, the first intake valve device 6 comprising a first ventilation member 50 for the vertical pipe, and the second intake valve device 7 comprising a second ventilation member 150 for the horizontal pipe, the second ventilation member 150 having a shape different from that of the first ventilation member 50.SELECTED DRAWING: Figure 1

The disclosed technology includes an air valve assembly for providing flexibility for a user when inflating an inflatable air mattress. The air valve assembly can include a base configured to attach to a portion of the inflatable air mattress, a middle valve configured to attach to the base portion and having a first diameter, a diaphragm member configured to attach to the middle valve, and a cap configured to removably couple to a portion of the air valve. The assembly can further include an adapter configured to detachably attach to the middle valve portion. The adapter can have a portion with a second diameter that is smaller than the first diameter such that when the adapter is attached, a user may use an inflation device with a smaller dimensioned output.

The utility model relates to an inflatable tent which comprises a plurality of inflatable parts and a connecting valve device. The end part of the connecting valve device is provided with a functional integrated part, and the functional integrated part can integrate two functional components (such as a fixing element and an unlocking part) used for fixing a pipeline on the inflatable part and unlocking the pipeline at the end part of the connecting valve device. According to the invention, it is possible to conveniently / quickly insert the pipe into the connecting valve device and fix the pipe directly with respect to the connecting valve device by the fixing element after insertion and to release the fixation of the pipe by simply pushing the movement of the unlocking member, thereby allowing the inflatable part of the inflatable tent to be conveniently and quickly assembled and / or replaced, that is, a solution for quick insertion and extraction of the pipeline is provided.

The utility model belongs to the technical field of fluid control sealing, and particularly relates to a threaded cap overturning air valve which comprises a fluid controlled port, a circular connecting belt, an adhesive tape and a skirt edge, the circular connecting belt is arranged on the periphery of the fluid controlled port, the adhesive tape is arranged at the side end of the fluid controlled port, and the skirt edge is arranged on the outer side of the fluid controlled port. Through the arrangement of the overturning control valve, the anti-blocking isolating ring, the mounting frame, the one-way sealing plug, the blocking strip, the connecting ring and the clamping block, when air inflation is needed, the sealing cover is opened, the overturning control valve is rotated until the side, provided with the strip-shaped protrusion, of the middle of the one-way sealing plug faces outwards, then the overturning control valve is clamped to a fluid controlled port through rotation, and then the sealing cover is opened; and then the air tap is clamped on the outer side of the turnover control valve in the same way for inflating. If the applicable material is sponge or other structures which cannot automatically exhaust, the sealing cover is opened, then the turnover control valve is rotated to the other surface, and at the moment, the air tap is mounted to the side end of the turnover control valve, so that air can be exhausted inwards.

This female fluidic fitting element (100) (R) is designed to be connected to a Schrader-type male fitting (10) with a threaded tubular portion (16). The female element (100) comprises a main body (110), which provides a distal opening (112) for receiving the male fitting in an engaged position, and an adapter (120), which is designed to be secured to a pipe and is assembled to the main body. A locking mechanism (140), which is received in a housing (118) radially formed in the main body, provides a through opening (145) for receiving the male element in the engaged position. A locking stop (170) is guided in the main body (110) and extends into the housing (118) and into the opening (145) of the lock, so as to permit movement of the lock between a locked position and an unlocked position, while preventing movement beyond the locked position.

A valve connector includes a body and a control component. The body has a through hole divided into a first receiving section and a second receiving section. The control component has a body portion with a guide hole connecting to the through hole. The body portion has an abutting end and a control end exposed at the second end for attachment to an inflating device. The control component can move relative to the body, with the abutting end selectively entering the first receiving section to abut against the core rod of the Schrader valve, and with a sealing ring selectively abutting the second receiving section, enabling easy detachment of the valve from the valve connector.

The invention discloses a pneumatic control inflation valve, which belongs to the field of pneumatic control valves, and comprises an inflation valve body and a pneumatic control valve body, and the inflation valve body is provided with a high-pressure air inlet channel and a high-pressure air outlet channel; the inflation valve body is provided with a firing pin groove and a firing pin, one end of the firing pin extends into the high-pressure air inlet channel, and the other end of the firing pin is provided with a clamping jaw. A guide groove, a piston groove and a via hole are formed in the pneumatic control valve body; a plug pin is arranged at the end, facing the through hole, of the piston, and a guide push disc is arranged at the other end of the piston and connected with the guide groove in a sliding fit mode. One side of the pneumatic control valve body is provided with a pneumatic control air inlet channel communicated with the guide groove; a spring seat is arranged on the firing pin, and a spring is arranged between the spring seat and the pneumatic control valve body. The scheme has the beneficial effects that the clamping jaw is released through air control, the spring pushes the firing pin, the firing pin breaks the sealing membrane, and rapid ventilation is achieved; starting of a plurality of pneumatic control inflation valves can be controlled simultaneously through a gas circuit, the response speed of a mechanical structure is high, and the failure rate is low.

A valve apparatus [11] for connection to a tank or pipe, the valve apparatus[11] comprises a housing [12], a first opening [176a] and a second opening [177a] communicating with respective first conduit [16] and second conduit [17] each for providing ingress and egress of fluid into and out of the housing [11] through the first opening [176a] and the second opening [177a], and discrete first and second valve means or valves [14; 15] which are spaced apart from one another, the first and second valve means or valves [14; 15] selectively controlling fluid flow between the first and second conduits [16; 17], wherein, in use, the principal flow axes along the first conduit [16] and second conduit [17] are parallel and opposed, the first valve means or valve [14] is configured to open when the pressure in the first conduit [16] is greater than a first pressure and the second valve means or valve [14; 15] is configured to open when the pressure in the first conduit [16] is less than the first pressure.

The utility model discloses an inflation valve group provided with a control valve, which comprises a valve casing and a rubber sleeve, the valve casing is provided with an air passing cavity in a penetrating manner, the rubber sleeve is sleeved on the valve casing, the air passing cavity forms an air outlet on the air outlet side of the valve casing, a valve rod component is arranged in the air outlet, and the valve rod component seals the air outlet in a normal state; the air passing cavity is provided with a control valve set on the air inlet side of the valve shell, the control valve set comprises an inner valve body and a movable valve element arranged in the inner valve body, a through air inlet channel is formed in the inner valve body, the movable valve element abuts against and seals the air inlet channel in the normal state, and the movable valve element actuates towards the air outlet side in the air inlet state. The valve rod assembly is actuated to deflect in the air inlet state, a first air passing gap is formed between the valve rod assembly and the air inlet channel, the valve rod assembly is actuated to deflect in the air inlet state, and a second air passing gap is formed between the valve rod assembly and the air passing cavity so as to communicate the air inlet channel with the air outlet.

A vacuum relief valve for a railroad tank car and methods for using the same to test the vacuum relief valve for leaks without requiring removal of the valve from the railroad tank car are described herein. According to one aspect of the invention, a vacuum relief valve described herein may be inspected for leaks without removing the vacuum relief valve from the railroad tank car by using two or more access openings located on the body of the vacuum relief valve. According to another aspect of the invention, a vacuum relief valve described herein may be inspected for leaks without removing the vacuum relief valve from the railroad tank car by using an opening to an interior cavity of the valve body that is revealed by rotating a cover from a closed position to an open position.

The invention relates to a valve (20) for an electrochemical energy storage device, this device comprising a casing (30), this valve itself comprising: - a valve body (10); - a first diaphragm (100) capable of bursting at least for a pressure difference between the two sides of the diaphragm greater than a threshold (P1) and means (24) forming at least a first support for said first diaphragm (100); - means (8, 12) maintaining the valve in a closed state for a pressure difference between the two sides of the diaphragm less than (P2) and allowing the valve to open for a pressure between (P1) and (P2), P1 > P2. Figure for the abstract: Figure 2A

Embodiments of air admittance valve assembly and piping system incorporating the same are provided herein. In some embodiments, a valve assembly comprising a housing, a first valve comprising a first valve sealing member and a first valve seat, and a second valve comprising a second valve sealing member and a second valve seat, and a pipe, an inlet, an outlet, a first zone, a second zone, a third zone, the first and second valve sealing member is closed by gravity and open based upon the pressure differential between the first zone, second zone and third zone.

The invention relates to a valve (20) for a device for storing energy in electrochemical form, this device comprising a casing (30), the valve itself comprising: - a valve body (10); - a first diaphragm (100) capable at least of rupturing for a pressure difference between the two sides of the diaphragm greater than a threshold (P1) and means (24) forming at least a first support for the first diaphragm (100); - means (8, 12) keeping the valve in a closed state for a pressure difference between the two sides of the diaphragm smaller than (P2) and allowing the valve to open for a pressure of between (P1) and (P2), P1 > P2.

The invention relates to the technical field of pressure containers, and discloses a leakproof pressure container which comprises a pressure buffer storage mechanism and two elastic pressure control mechanisms. A horizontal hollow shell which is fixedly mounted at one opening end of the hemispherical closed shell and is in a hollow state, a first built-in movable valve plate which is placed in the horizontal hollow shell and can control the pressure required by outward flowing of gas, and an external threaded rod which can control the pressure required by moving of the first built-in movable valve plate are arranged in the first built-in movable valve plate. According to the anti-leakage pressure container, the interval used for storing the medium and the buffer intervals are arranged in a divided mode, so that independence of the medium in the storage process is guaranteed, the buffer areas are located at the two ends of the storage area, the buffer containing capacity in a larger range is achieved, in addition, the device can adjust the gas damping pressure of the buffer areas to the storage area according to actual needs, and therefore the storage efficiency is improved. And therefore, the applicability of the equipment in the aspect of controlling the medium pressure is improved.

The application discloses a high-strength inflatable air valve moving piston for a tent and relates to the technical field of air valve moving pistons. The high-strength inflatable air valve moving piston for a tent comprises an air valve moving mechanism, the air valve moving mechanism comprises an air valve, a moving piston is movably connected to the inside of the air valve, a first base is fixedly connected to the bottom of the air valve, and a vibration relieving mechanism is fixedly connected to the outer wall of the air valve. The high-strength inflatable air valve moving piston for a tent filters air through a spiral plate and filter cotton, filters air in cooperation with moisture, thereby ensuring that dust cannot enter the air valve, avoiding the entry of dust, reducing dust in the air valve, ensuring the service life of the air valve, and ensuring the service life of the air valve. The spiral plate is spirally arranged, dust is driven to move in the rotating process, dust rises under the rotation of the spiral plate, and dust is discharged from the air inlet hole after rising to the position of the air inlet hole.

The utility model provides a filling valve and an expansion tank, the filling valve comprises a valve seat, a valve cover and a valve needle assembly, the valve needle assembly is arranged in the valve seat and is provided with a valve port capable of being opened and closed, and the periphery of the valve needle assembly is in sealing fit with the inner wall of a cavity of the valve seat; the valve cover is detachably buckled at one end of the valve seat, and under the condition that the valve cover is installed on the valve seat, the inner wall of a cavity of the valve cover is matched with the periphery of the valve seat in a sealing mode. By the adoption of the scheme, when the filling valve is not used, gas leakage is prevented through double sealing of the valve seat, the valve needle assembly and the valve deck, gas leakage can be effectively prevented through double sealing when the filling valve is not used, and the phenomenon that gas leakage is caused when the filling valve adopts single sealing (sealing fit between the valve seat and the valve needle assembly) is avoided. And if the sealing fails, the air leakage of the filling valve is caused, so that the self-sealing effect of the filling valve is improved, air leakage is avoided while the filling valve can cope with various complex environments, and the reliability of the filling valve and the applicability to different application environments are improved.

The invention relates to a draining device for an aircraft fuel tank comprising: - a drain line (18) having an upstream end, configured to open into the tank, and a downstream end (18.1), - a drain valve (20) positioned between the upstream and downstream ends of the drain line (18), - a plug (22) configured to occupy a closed position in which it seals the downstream end (18.1) of the drain line (18), - a pressure equalization system (28) configured to equalize the pressures on either side of the plug (22) when the latter is in the closed position. Equalizing the pressures on either side of the plug (22) facilitates its opening. The invention also relates to an aircraft comprising at least one such draining device.

The application relates to the technical field of inflation valves, and particularly discloses an inflation valve device with a double-air-tube joint, which comprises a mounting plate, the upper end surface of the mounting plate is provided with a valve body shell, the inside of the valve body shell is slidably provided with an electromagnetic coil, the inside of the electromagnetic coil is slidably provided with a movable iron core, one end of the movable iron core is provided with a blocking piece, one end of the blocking piece is fixedly provided with a mounting head, and the outside of the mounting head is slidably provided with a movable pin; meanwhile, a middle ring is rotationally matched with a first convex slot of a base ring and a second convex slot of an upper ring through first convex rods, a first connecting head is rotationally connected with the second convex slot through a second convex rod, and a plug assembly is rotationally installed on the left side of a connecting pipe, so that the two connecting heads can be flexibly adjusted in angles, different installation spaces and air tube trends can be adapted, air tube twisting and bending can be avoided, and smooth gas circulation can be ensured.

The gulp valve comprises a valve body, a valve cavity is arranged in the valve body, a first gas port, a second gas port and a third gas port which are respectively communicated with the valve cavity are arranged on the valve body, the first gas port is connected to a pump head of the screw vacuum pump, the second gas port is communicated with the atmosphere, and the third gas port is used for being communicated with negative pressure gas. A valve port is formed between the first air port and the second air port, a valve element correspondingly matched with the valve port and a spring correspondingly matched with the valve element are movably arranged in the valve cavity, and the spring enables the valve element to have the movement trend of closing the valve port all the time. And when the third gas port is communicated with negative pressure gas, the valve element overcomes the elastic acting force of the spring to move in the direction far away from the valve port under the suction effect of the negative pressure gas so as to open the valve port. The device is simple and reasonable in structure, convenient to install and reliable in operation. When the pump head stops working, air is supplemented to the pump head through the air supplementing valve so as to balance the negative pressure in the pump head, and the lubricating oil in the oil separation barrel can be effectively prevented from being sucked into the pump head.

Pressure equalization element (12) for a battery system, comprising a housing base element (22) which has a flow section (28) leading from an environment (U) to a sealing chamber (16) with an inlet side (E) and an outlet side (A), comprising a cover (30) arranged on the environment side of the housing base element (22) and covering the inlet side (E), which is removable so that it can be detached if necessary, and comprising a valve element (40) arranged in the housing base element (22) which is designed such that it opens the flow section (28) when there is negative pressure in the sealing chamber (16) and closes it when there is positive pressure in the sealing chamber (16), wherein an outlet opening from the housing base element (22) downstream of the valve element (40) is closed by means of a diaphragm (46), characterized in that the valve element (40), when the cover (30) is removed, can be placed in a test situation by means of a test device (66). It can be brought into an open position.

A tire valve assembly includes a valve stem defining a hollow interior and a valve positioned within the hollow interior. The valve is manually movable between a closed position to inhibit movement of fluid through the valve stem and an open position to facilitate movement of fluid through the valve stem to inflate the tire.

The utility model provides an integrated vehicle high-pressure isolating valve, which comprises a shell, an electromagnetic coil assembly and a valve assembly, the electromagnetic coil assembly is positioned in the upper shell, the valve assembly comprises an armature, a first sealing valve and a second sealing valve, one end of the armature close to the electromagnetic coil assembly is positioned in a first accommodating cavity and is in floating connection with the first accommodating cavity, and the other end of the armature is positioned in a second accommodating cavity. The armature reciprocates in the first containing cavity under the action of the electromagnetic coil assembly, the end, away from the armature, of the first sealing valve is provided with a first sealing face used for sealing the first opening, and the first sealing valve is further provided with a second opening communicating the second containing cavity with the lower cavity. At least one part of the second sealing valve elastically abuts against the first sealing face so as to seal the second opening. The armature in floating connection is adopted to replace an original valve assembly with a center guide shaft, so that the situation that the guide precision of a traditional guide mode of the center guide shaft is affected by an assembly size chain and an assembly process is avoided, and the process difficulty and the process cost are reduced.

This application relates to a backflow prevention valve and an inflation product for preventing accidental contact and leakage, belonging to the field of ventilation device technology; by setting a first component on the housing and a second component on the automatic telescopic locking mechanism, the first component and the second component cooperate to form a locking assembly, which can realize locking in the first state and / or the second state, thereby reducing the probability of one-way closure failure of the fluid channel caused by accidental contact with the automatic telescopic locking mechanism.

An embodiment of the present application provides a pump-valve integrated control device for a pneumatic support bladder body, a pneumatic system, an integrated pump-valve device for pneumatic massage control for vehicles, and a massage system, wherein the valve-pump integrated control device comprises a gas distribution mechanism equipped with a gas consumption device, a control mechanism of the control valve body, a gas supply mechanism that supplies gas to the gas distribution mechanism, and drive mechanisms that drive the control valve bodies to movement, wherein the movement of the control valve body is controlled by memory alloy wires in order to enable switching of the gas consumption device between an inflation state, a deflation state, and a pressure holding state.Compared to prior art electromagnetic valves, the structure is simpler and the volume is smaller.