361results about "Aeration devices" patented technology

The present invention discloses a hydraulic brake valve and its exhaust process method. The valve body of the exhaust structure touches and presses the operating mechanism at the top of the valve body component of the valve body. A working spring is installed on the valve plug of the valve body. The valve core is installed in the central hole of the valve body and the central counterbore of the plug. The valve core is inserted into the center of the plug, and the counterbore presses the return spring. The return spring is installed on the spring seat, and the spring seat is installed in the counterbore of the plug. The roller of the operating mechanism touches and presses the plug in the valve body to form action and reaction forces, and promotes the operating mechanism and the valve core to touch and press and move to work. The valve core can slide along the inner wall of the valve body. An exhaust hole is provided on the side wall of the valve core. A plug for blocking the other end of the valve body is provided in the valve body, and a spring seat abutting against the plug is further provided in the plug. A return spring is installed between the spring seat and the valve core. The advantages are: avoiding abnormal noises and cavitation phenomena caused by gas accumulation to the hydraulic brake valve, ensuring the normal transmission and circulation of hydraulic oil in the pipeline, and eliminating potential hazards of the hydraulic braking system.

Disclosed are an oilproof assembly, an oilproof vent valve, and a device with an oil tank. The oilproof assembly includes: a valve body, wherein a cavity is formed in the middle, the valve body includes a first end and a second end; a first filter element arranged in the cavity at the first end; a limiting part arranged in the cavity at the second end; and an elastic part arranged between the first filter element and the limiting part and configured to apply a thrust to the filter element after the first filter element absorbs oil to swell, so that at least part of oil absorbed in the first filter element can be extruded by the thrust of the elastic part. According to the oilproof assembly, the oilproof vent valve, and the device with the oil tank, the maintenance cost can be reduced, and the service life can be prolonged.

A valve assembly includes a body engageable with a container, an internal cavity, and a vent outlet. A wall divides the internal cavity into a first chamber and a second chamber, the first chamber being between the bottom end of the body and the wall, and the second chamber being between the top end of the body and the wall, in communication with the vent outlet. An umbrella valve is coupled to the wall and has a central passage and an umbrella portion. The umbrella portion is positioned within the second chamber and is configured to engage a top side of the wall. The umbrella portion is configured to deform away from the top side of the wall to vent a gas along a first pathway from the first chamber to the vent outlet in response to pressure within the first chamber exceeding a cracking pressure of the umbrella valve.

The present disclosure relates to a quick fill device for use with a valve assembly, and related methods of filling a pressure vessel. A valve assembly that can be secured to a pressure vessel includes a vessel, a fill valve, and an overfill valve. A preferred example of the device includes a body, a valve trigger pin, a vent trigger pin, and a handle. A valve engagement end of the body can be releasably secured within the vessel. At this point, moving the handle to an open position causes the valve trigger pin to force the fill valve to an open configuration, and causes the vent trigger pin to force the overfill valve to a fluid venting configuration. A rigid fill tube is in fluid supply communication with a fuel supply port of the body. The fill tube and the handle can be elongate, and extend in a common direction.

The invention relates to a pressure equalization device (1; 100, 100; 200), comprising: a hollow cylindrical bottom part (10; 210) which comprises, on a first axial end (12) on the radial outer side, a fastening region (14) for fastening to the housing and, on a second axial end (18), a connecting region (20); and an upper part (60) having a cylindrical wall (62) and a base (64), the upper part being connected to the base part (10; 210) is engaged with the connecting portion (20) on the second axial end (18) of the first axial end (18). The hollow cylindrical bottom part (10; 210) also has an annular projection (30) projecting radially inward, which projection defines a central opening (44) and, on the side facing the second axial end (18), has a first, preferably annular clamping structure (47), in particular a first annular groove (48), and a plurality of channels (38) arranged annularly between the central opening (44) and the first clamping structure (47). According to the invention, the upper part (60) comprises a second clamping structure (66) which protrudes axially from the base (64), in particular is annular and / or has a second groove (70), and preferably extends in an axial direction parallel to the cylindrical wall (62). A gas permeable membrane (50) covers the central opening (44), and an elastic sealing element (80; 180); 280) between the bottom part (10; 210) and the second clamping structure (66) of the upper part (60) are provided with a fixing region (82; 182, 182; 184) extending radially inward in the direction of the central opening (44) and having a sealing region (84; 184, 184; 284) and seals the plurality of channels (38). Thus, a ventilation and ventilation channel extends through the central opening (44) and the gas permeable membrane (50), and an emergency ventilation channel extends through the plurality of channels (38) and the resilient sealing element (80; 180); 280) in the housing.

A ventilation system is provided for persistent natural ventilation by circulation of air between an interior space and an external environment. In one example, the ventilation system includes an air intake including a domed upper cover with exterior windows which allow air to circulate through an upper chamber, a baffle around floatable elements, the baffle including an annular protective screen and valve windows, a lower chamber fluidly coupled to each of the upper chamber via the baffle and an interior duct via a main window thereof, wherein the interior duct is fluidly coupled to the interior space, and wherein the floatable elements are positioned on respective seats when no liquid is present, each of the seats spaced a distance opposite to a respective one of the valve windows. Responsive to liquid entering the upper chamber via the exterior windows, the valve windows may be automatically blocked by the floatable elements.

A fluid control system with a fast fill valve (200) for expedited filling and draining of closed-loop systems allowing for temporarily opening the loop to allow filling without a separate vacuum process The valve operates in two positions: an open position for rapid, unidirectional fluid ingress and passive air egress and a closed position for a secure, sealed state during normal operation. Some examples include vacuum assisted air egress in parallel with filling.

Air valves for cases are shown and described. In one embodiment, an air valve includes an insert, a receiver, and spacer. In other examples, embodiments include a case having an air valve. Examples of an air valve system may include an insert assembly, a receiver assembly, and a sealing assembly. The result is a cost effective, reliable, easy to use, air venting system.

To provide an oilproof assembly which enables reduction of maintenance costs and extends a useful life, and to provide an oilproof vent valve and a device with an oil tank.SOLUTION: An oilproof assembly includes: a valve body 1 which is provided with a cavity located in the center and penetrating through both ends of the valve body, and includes a first end and a second end, and in which an oil passage port allowing communication between the cavity and the outside is provided at the first end and the cavity communicates with an external ventilation passage at the second end; a first filter element 2 provided in the cavity at the first end; a stopper member 3 provided in the cavity at the second end and provided with a through hole for ventilation; and an elastic member 4 provided between the first filter element and the stopper member. The elastic member is configured to apply a thrust to the filter element after the first filter element absorbs oil to swell, so that at least part of the oil absorbed in the first filter element can be extruded by the thrust of the elastic member.SELECTED DRAWING: Figure 5

The invention provides a substrate storage container including a valve body for improving the reliability of valve opening and closing operation. A substrate storage container is provided with: a container main body for storing a substrate; a cover body for closing the opening of the container main body; and a valve body (40) for controlling the flow of gas to the container main body, the valve body (40) having: a block member (41) in which communication paths (416, 417) for communicating the outside and the inside of the container main body via a valve hole (466) are formed; and a plate-shaped valve member (45) that opens and closes the valve hole (466) and is elastically deformable, and a valve seat (467) around the valve hole (466) and a sealing surface (452a) of the valve member (45) are bent toward the downstream side in the gas flow direction and are in contact with each other.

The utility model discloses an ultrathin low-air-resistance massage supporting valve body which comprises an outer shell, a PCB fixed in the outer shell and a plurality of massage electromagnetic valves fixed on the PCB. The massage electromagnetic valve comprises an electromagnetic valve shell, a first connecting port, a second connecting port, a third connecting port and a fourth connecting port are formed in the electromagnetic valve shell, a first gas circuit and a second gas circuit are further arranged in the electromagnetic valve shell, the first connecting port is communicated with the second connecting port through the first gas circuit, and the third connecting port is communicated with the fourth connecting port through the second gas circuit. The first gas path and the second gas path are both arranged to be straight channels and are spliced in a straight-through mode, gas resistance is effectively reduced, the utilization rate of gas is improved, the flow loss is minimum in the using scene, the size is small, the space occupancy rate is reduced, the weight is light, and the cost is low. And the combined massage supporting valve body is thinner.

Degassing unit (10) for a housing (4), with a base body (1) which can be connected in a fluid-tight manner to an edge of a housing opening (44) of the housing (4), having an outer surface (18) and an inner surface (17), and which has at least one gas passage opening (15) which is closed with a membrane (6) stretched across a surface transverse to an axial direction (L), wherein the base body (1) is operatively connected to an actuator (2) which has an emergency degassing mandrel (19) extending in the axial direction (L) to the membrane (6) and whose tip (191) or at least a cutting edge (192) is arranged at a predetermined distance from a membrane surface (61, 62) in a rest state, wherein the emergency degassing mandrel (19) is movable towards the membrane when the actuator (2) is activated, so that the tip (191) or cutting edge (192) can pierce or cut the membrane (6), wherein the actuator (2) is arranged on the base body (1) or can be arranged on the housing (4), characterized in that a cover (5) is arranged on the outside (18) of the base body (1), which covers the gas passage opening (15) and which is connected to the base body (1) via a fastening mechanism, wherein the actuator (2) has an actuating element (21) which is designed to release the fastening mechanism.

The present application provides a mechanical two-way valve, an air pump and an electronic sphygmomanometer, wherein the mechanical two-way valve comprises a first shell, a second shell and an elastic member installed between the first shell and the second shell. An exhaust hole and a first vent hole are respectively provided on the first shell; an air inlet hole is provided on the second shell. The first vent hole is connected to the cuff by connecting the air outlet of the air pump with the air inlet hole of the mechanical two-way valve. When the air pump supplies air to the mechanical two-way valve, the elastic member deforms toward the exhaust hole under the atmospheric pressure of the air inlet hole, blocks the exhaust hole, and connects the air inlet hole with the first vent hole, so that the cuff can be inflated; when the air pump stops supplying air, the elastic member returns to its original state under the action of elastic force, blocks the air inlet hole, and connects the exhaust hole with the first vent hole, so that the gas in the cuff can be discharged. The electronic sphygmomanometer does not need to adopt the traditional solenoid-type electromagnetic valve structure, can realize mechanical air intake and exhaust, consumes less power, has a small size and a simple structure.

To provide an air valve capable of efficiently sucking / discharging air.SOLUTION: An air valve 1 includes: a valve case having a valve case hollow part 2a therein and a valve case flange part 22 around a portion near an upper side opening part of the valve case hollow part 2a; a lid body 3 that has a lid body hollow part 3a therein, has a lid body flange part 32 fastened to the valve case flange part 22 around a portion near a lower side opening part 3aa of the lid body hollow part 3a and has a lid body cap part 35 having a small air hole 35a formed thereon and in which the lower side opening part 3aa of the lid body hollow part 3a communicates with the valve case hollow part 2a; an upper side opening part of a large air hole 32b is formed on an upper surface of the lid body flange part 32; and the lower side opening part communicates with the valve case hollow part 2a; a loosely moving valve element 4 that is disposed in the valve case hollow part 2a and can close the large air hole 32b from the lower side and on which a central hole 4a penetrating vertically is formed; and a float valve element 5 that is disposed in the lid body hollow part 3a and can close the small air hole 35a from the lower side.SELECTED DRAWING: Figure 3

The utility model provides a quick inflation and deflation nozzle which comprises an inflation assembly, a non-return diaphragm, a ventilation piece, a sliding sleeve, a first sealing ring and a second sealing ring. The ventilation piece is provided with an upper cavity and a lower cavity, the upper cavity and the lower cavity are separated, an upper through hole is formed in the side wall of the upper cavity, a lower through hole is formed in the side wall of the lower cavity, the inflation assembly is provided with an inflation channel penetrating through the two ends of the inflation assembly, the inflation channel is communicated with the upper cavity, and the non-return diaphragm covers an air outlet port of the inflation channel and is located in the upper cavity; the sliding sleeve is arranged on the outer side of the ventilation piece in a sliding and sleeving mode, the first sealing ring and the second sealing ring are arranged on the upper portion and the lower portion of an inner cavity of the sliding sleeve respectively, air leakage of the air nozzle can be avoided, a ventilation cavity is formed between the first sealing ring and the second sealing ring, and the diameter of the ventilation cavity is larger than the outer diameter of the ventilation piece. The height of the ventilation cavity is larger than the distance from the upper end of the upper through hole to the lower end of the lower through hole, a user only needs to push the sliding sleeve during inflation and deflation, operation is more convenient, and the inflation and deflation efficiency can be improved.

The utility model belongs to the technical field of air circulation control, in particular to a push-pull air tap, which comprises an air tap, a colloid mounting ring, a connecting strap and a sealing cover, the colloid mounting ring is arranged on the periphery of the air tap, the connecting strap is arranged on the outer side of the air tap, and the sealing cover is arranged at the side end of the connecting strap. By arranging the displacement adjusting frame, the positioning frame, the sealing gasket, the flexible connecting strip and the push-pull block, when gas needs to be supplemented, the push-pull block is pulled out, and the flexible connecting strip drives the sealing gasket to be tightly attached to the bottom of the positioning frame. At the moment, inflation equipment is aligned with the air tap, and the air can lift the sealing gasket and enter the air containing structure. If gas needs to be exhausted, the push-pull block is pressed, the push-pull block enables the sleeve to penetrate through the through groove in the middle of the positioning frame through connection of the sleeve and the flexible connecting strip, so that the sealing gasket is pushed inwards and does not make contact with the bottom of the positioning frame, at the moment, the one-way through opening is changed into the two-way through opening, and the gas in the gas containing structure is rapidly exhausted from the gas nozzle.

The utility model belongs to the technical field of micro hyperbaric oxygen chambers, and particularly discloses a pressing type exhaust valve which solves the problem of manual exhaust of a civil micro hyperbaric oxygen chamber. The two-way exhaust device comprises an oxygen cabin body and an exhaust valve, a two-way exhaust assembly is arranged in the exhaust valve and comprises a valve seat, a button is arranged at the end, away from the valve seat, of the exhaust valve, a plurality of through holes are formed in one end of the exhaust valve and the button, and the button and the valve seat are used for driving the exhaust valve to conduct two-way exhaust. Through the arrangement of the two-way exhaust assembly, two-way exhaust can be rapidly achieved, the pressure in the oxygen cabin body can be adjusted in time, pressure balance is ensured, the exhaust efficiency is improved, the exhaust valve can be conveniently operated for exhaust no matter inside or outside the oxygen cabin body, complex tools are not needed, and the use convenience is improved; and accurate exhaust control is beneficial to maintaining a stable and safe pressure environment in the oxygen cabin main body, and the safety risk caused by abnormal pressure is reduced.

The utility model discloses a two-position five-way reversing valve for inflating a turning-over air bag of an air mattress. Comprising a reversing valve motor, a valve seat and a valve cover, a sealing piece is arranged between the valve cover and the valve seat, and the valve seat is provided with an air inlet pipe joint, an air leakage pipe joint, a pressure detection pipe joint, a left air supply pipe joint and a right air supply pipe joint; an air inlet channel, an air leakage channel, a left communication channel and a right communication channel are arranged in the valve seat. The bottom, connected with the valve seat, of the valve deck is provided with an air inlet groove communicating with the air inlet channel and the left air inlet hole at the same time and an air outlet groove communicating with the air leakage hole and the right air inlet hole at the same time. According to the two-position five-way reversing valve, the valve seat and the valve cover are arranged, the left air inlet hole, the right air inlet hole and the air release hole in the valve seat are matched with the air inlet groove and the air outlet groove in the valve cover to achieve two-to-two corresponding communication, and the left-in right-out and right-in left-out reversing air inlet and air release functions of the two-position five-way reversing valve are achieved; the turning-over air bag is simple in structure, convenient to operate and low in cost.

The invention relates to a pressure-independent control valve comprising a fluid inlet; a fluid outlet; a fluid path between the fluid inlet and the fluid outlet; a pressure differential control, wherein the pressure differential control comprises a chamber in fluid communication with the fluid path; and a drain. The drain comprises a drain outlet in fluid communication with the chamber and a drain closure to open and close the drain outlet. Fluid can drain from the valve when the drain outlet is open. The drain closure is movable between an open position to open the valve and a closed position to close the valve. The invention further relates to a fluid system comprising the valve with the drain, and to a method of draining the valve via the drain.

The following abstract of the invention describes a thermodynamic valve for retaining vapours and gases and relieving pressure and vacuum for use in the venting (breathing) of tanks or reservoirs of combustible liquids (fluids), at storage points, in industry or at any other establishment that stores or sells liquid fuels containing volatile compounds, preventing the egress of the volatile vapours and gases to the atmosphere through the tank breathers, comprising two diaphragm rings (3a and 3b) that act through the thermodynamic action of the positive and negative pressures inside the positive (4) and negative (5) chambers, fixed to one another by a screw thread, a cap (2) screwed in the body of the chamber (4) and having upwardly directed lateral openings, a rupture seal (1) fitted in the upper part of the cap (2), containing a base (5.1) with screw thread, fire-break fabric (6) in stainless steel fixed by an O-ring (7) and double safety fire-break fabric (4.1).

Ventilation unit (100) for the supply and exhaust of an interior space (210), in particular for the supply and exhaust of an interior space (210) of a gearbox or oil reservoir, comprising a base body (10), a valve (30), a sealing element (20) and at least one mounting element (18), wherein the base body (10) has a fluid-permeable flow opening (22) for ventilating the interior (210) with a filter area (24) which at least partially fills the flow opening (22) and is substantially fluid-tight connected to the base body (10), wherein the sealing element (20) surrounds the flow opening (22), wherein the valve (30) has a valve body (32) which is arranged on an inner surface (14) facing the interior (210) on the base body (10) in a way that allows for tight closure, wherein a closing element (36) of the valve (30) in the intended installation position (80) keeps a flow path (60) to the flow opening (22) open and closes the flow path (60) to the flow opening (22) from a tilting angle (72) relative to a direction of gravity (70), characterized in that the valve (30) has the closing element (36) and a spring element (38) in an interior (34) of the valve body (32), and that the closing element (36) is in an open position (40) in the direction of gravity (70) due to its own weight in the intended installation position (80) against a preload of the spring element (38), and that the closing element (36) is in a closed position (42) from the tilting angle (72) relative to the direction of gravity (70) against its own weight with the preload of the spring element (38).

A sleeve signalling system enables robust, mechanical and highly visible binary signalling. The system comprises an elongated signalling element comprising a signal marking, and a sleeve disposed over the signalling element. The sleeve is slidable along the elongated signalling element between a first position that covers the signal marking and a second position that uncovers the signal marking.

Screw-down valve with integrated parallel operated venting system, characterized in that both systems are combined in one screw-down valve.

A pull-out faucet, comprising a faucet body, a spray head, a pull-out hose and a non-electric driving water output assembly, wherein the spray head is detachably arranged at one end of the faucet body; the pull-out hose is arranged to be reciprocatingly movable in the faucet body, one end of the pull-out hose is in communication with the spray head, and the other end of the pull-out hose is in communication with a water output end of the non-electric driving water output assembly; the non-electric driving water output assembly is arranged in the faucet body; and a driving mechanism is provided on a side wall of the pull-out hose. Separation of the spray head from the faucet body drives the driving mechanism of the pull-out hose to move close to a movable plug, whereupon the driving mechanism drives the movable plug to move to open a water path; and resetting of the spray head toward the faucet body drives the driving mechanism of the pull-out hose away from the movable plug, whereupon the movable plug is reset and seals off the water path. The pull-out faucet simply and effectively completes pull-out control of the spray head to realize water output, does not require a power supply, and has high universal use and low use costs.

An explosion-proof valve and a box are provided in the application. The explosion-proof valve is configured for installing in the box, and includes a valve body (110) including a breathing passage (150), a press cover (120) and a breathing mechanism (130). The valve body is connected to the valve body, and there is a gap between the press cover and the valve body. The breathing mechanism is movably connected to the press cover, and a breathing switch (140) is formed between the breathing mechanism and the valve body. When the breathing mechanism abuts against the valve body, the breathing switch is closed, and an inside of the box is not in communication with an outside of the box. When the breathing mechanism is separated from the valve body, the breathing switch is opened, and the inside of the box is communicated with the outside of the box.

The invention relates to a pressure compensation device, comprising a grid-shaped housing (1) with a gas passage opening (2) that connects an inner side (3) and an outer side (4) of the pressure compensation device in a flow-conducting manner depending on differential pressure in a flow direction (5), wherein the gas passage opening (2) is covered by an inner membrane (6) arranged towards the inner side and an outer membrane (7) arranged towards the outer side (4), wherein the inner membrane (6) and the outer membrane (7) are in each case gas-permeable and are arranged in a functional series circuit with respect to one another, and wherein the inner membrane (6) and the outer membrane (7) are arranged adjacent to one another at a spacing (8) as viewed in the flow direction (5) between the inner side (3) and the outer side (4). A gas-permeable first protective structure (14) is functionally connected upstream of the inner membrane (6) on the side facing the inner side (3) and / or a gas-permeable second protective structure (9) is arranged in the spacing (8).

A diaphragm valve for gas analysis applications is provided. The valve includes: a valve bonnet having a plurality of process conduits extending therethrough; a valve body engageable with the valve bonnet and having a body-engaging portion with a recess; a diaphragm positioned between the valve bonnet and the valve body and having a process groove for circulating a fluid therein, the process groove engaging the recess; a plunger assembly disposed within the valve body, the plunger assembly including a plurality of plungers movable between a closed position in which the plungers engage the diaphragms and an open position in which the plungers are spaced from the diaphragms; and an actuating assembly including a gas inlet for allowing injection of an actuating gas therein, the actuating assembly including a purging system for purging an area between the diaphragm and the body-engaging portion, thereby purging the area with the actuating gas.