252results about "Aeration devices" patented technology

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.

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.

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 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 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.

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.

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.

In the provided ventilation structure, a ventilation member is provided with: an inner member that contains an elastic material and has an open pipe structure; and an outer member having a closed pipe structure. The inner member is fixed to the outer member in a state in which the inner member is inserted into the outer member and an air passage is secured between the inner member and the outer member. The ventilation member is fixed to the housing in a state in which the protrusion of the housing is inserted into the interior of the inner member from the opening on one side of the inner member and the inner peripheral surface of the inner member is in contact with the outer peripheral surface of the protrusion. The outer peripheral surface of the protrusion of the housing has a recessed portion or a roughened surface portion that has been roughened. The retreating part is located at a position away from the front end of the protrusion. The inner peripheral surface of the inner member is in contact with the rough surface portion or deforms in a direction approaching the axis of the ventilation member at the retreated portion. This configuration facilitates preventing the vent member from falling off from the protrusion of the housing.

The invention relates to a mounting system (1) for attaching an insert part in a wall opening, in particular a housing comprising - an interface (4) arranged or arrangable in a wall section (40), in particular a housing, which has an interface opening (44) arranged around a through-axis (A), which is circumferentially encompassed by an edge contour (41) with radially inwardly projecting retaining projections (42) and gaps (43) in between, - a fixing insert (3) which has an insertion section (31) which can be inserted in an insertion direction (R) in a first rotational position (P1) from an outside through the interface opening (44) and is provided circumferentially with radially attached fixing elements (32) extending in the circumferential direction and with a cylindrical central through screw-in opening (33) with an internal thread (34) and is limited at its rear end section with respect to the insertion direction (R) by a stop arrangement (30) surrounding the screw-in opening (33) and projecting radially beyond the interface opening (44) at least in sections, and - an insert part which is designed as a screw-in part (2) which can be screwed into the internal thread (34) and has a screw fitting (20) which transitions at its rear section in the insertion direction (R) into a contact flange (21) which completely encompasses the stop arrangement (30) in the assembled state and is brought into contact with the outside of the wall section (40) with its contact side, in which an annular space (24) is formed which completely surrounds the screw fitting (20) and is bounded by an inner wall surface of the contact flange (21).

A souvenir apparatus is provided for capturing and retaining air from a particular location. The apparatus includes a vessel containing a vacuum and an activating arrangement configured to allow air to be sucked into the vessel from the location where the device is activated. The activating arrangement can be provided with audible and / or visible indicators to show that the apparatus has been activated. A cover can optionally be affixed to the top of the apparatus as a decorative feature and / or to provide an air-tight seal after activation. Adhesive labels and / or writeable surfaces can be provided on the apparatus to indicate the location, date, and / or other information pertaining to where / when the apparatus was activated.

The invention discloses a balance gradually-moving type exhaust valve which comprises a valve body, a valve cover is connected to the top of the valve body, a liquid inlet communicated with a valve cavity is formed in the bottom of the valve body, a floating piece, a diaphragm and a valve seat are sequentially arranged in the valve cavity along the central axis, the floating piece is close to the liquid inlet, the top end of the valve seat is fixedly connected with the valve body, and the diaphragm is connected with the floating piece through the center position. The peripheral side of the diaphragm is fixedly connected to the bottom of the valve seat through a fastener; an air inlet channel communicated with the valve cavity is formed in the peripheral side of the valve seat, a center channel communicated with the air inlet channel is formed in the valve seat along the central axis, the other end of the center channel downwards penetrates through the valve seat, exhaust channels are formed in the positions, right opposite to the bottom of the diaphragm and the inner ring range of the fastener, of the valve seat, and the exhaust channels, the center channel and the air inlet channel are distributed in a staggered mode. The other end of the exhaust channel extends out of the valve body. According to the balance gradually-moving type exhaust valve, force needed by opening and closing of the valve is small, the gas displacement is large, and use is convenient.

Venting and separating device (100) for a housing (50) of a battery, in particular a traction battery of a motor vehicle, comprising a base body (10) with a circumferential rim (12) which is intended for coupling to the housing (50), wherein the base body (10) has at least one inlet opening (14) and at least one outlet opening (18), wherein the at least one inlet opening (14) can be brought into fluid contact with an interior (58) of the housing (50) when mounted as intended, and the at least one outlet opening (18) is in fluid contact with an environment (80), wherein the base body (10) has at least one first separating grid (20) with first grid openings (22) extending over the inlet opening (14) and, in a venting flow direction (24) downstream of the first separating grid (20) extending over the outlet opening (18), has a second separating grid (30) with second grid openings (32), wherein the venting separator device (100) has at least one overpressure valve (40) which is configured to open a bypass fluid flow path (26) from the interior (58) of the housing (50) to the environment (80) when a predetermined overpressure in the housing (50) is exceeded, wherein the bypass fluid flow path (26) bypasses at least one of the separator grids (20, 30), and wherein the pressure relief valve (40) is formed by the fact that the base body (10) in an assembly state can be pressed against the housing (50) in a sealing manner via at least one pre-tensioned spring element (42), wherein, when the predetermined overpressure in the housing (50) is exceeded, the base body (10) can be lifted off the housing (50) against the pre-tensioned spring element (42) by opening the bypass fluid flow path (26).

The invention discloses a standard meter thread pressure balance valve for moisture resistance, water resistance and air permeability and a membrane assembly thereof. The membrane assembly comprises a waterproof and air-permeable membrane which is prepared by performing surface hydrophobic and oleophobic modification treatment on an ePTFE (expanded polytetrafluoroethylene) microporous membrane; the elastic composite body is arranged between the waterproof breathable membrane and the valve plate; the elastic valve plate is of a thin-wall structure and is provided with a dynamic opening and closing seam; the membrane assembly is arranged on an airflow channel of the pressure balance valve body, the waterproof breathable membrane is arranged at the outer side end of the airflow channel and used for blocking external liquid and dust, and the valve plate is arranged at the inner side end of the airflow channel and used for dynamically adjusting internal air pressure balance. By means of the mode, the waterproof breathable pressure-adjusting breathable film has the dual functions of water resistance, breathability and pressure adjustment, external liquid and particulate matter are prevented from entering, and the breathability can be automatically adjusted according to the pressure difference; the water vapor is controlled from the source to enter the battery pack, the internal and external pressure balance of the power battery pack is effectively solved, and the internal fogging and condensation phenomena are eliminated.

The utility model discloses a high-gas mine gas extraction pipe water drainage device which comprises a water drainage device shell, a height-adjustable supporting leg assembly is arranged on the side face of the water drainage device shell, an upper cover is arranged on the water drainage device shell, and a negative pressure balance valve and vent valves located on the two sides of the negative pressure balance valve are arranged on the upper cover. A buoy capable of sliding up and down is arranged in the water drainer shell, a water supply pipe is arranged on one side of the water drainer shell, a filter box is arranged on the water supply pipe, a filter screen is arranged in the filter box, a water outlet pipe is arranged at the bottom of the water drainer shell, and a plugging piece used for plugging a water outlet of the water outlet pipe is arranged at the bottom of the buoy. Compared with the prior art, the utility model has the advantages that: compared with the prior art, the utility model has obvious advantages. Firstly, by optimizing the design of the filter box and the filter screen, the maintainability of the filter device is realized, the cleanliness of water is improved, and the service life of equipment is prolonged; secondly, the energy consumption is reduced, and the automation degree of the system is improved.

A hose coupling for a hydrant has a ventilation device. The ventilation device has a non-return valve that is received in a receptacle incorporated into an outer flange of the hose coupling.

A float (60) and an air release valve (10) incorporating same. The air release valve (10), includes a main valve body (12), defining a valve chamber (14) having a first opening (16) and a second opening (18). The valve (10) further comprises a cage (24) held relative to main valve body (12), the cage (24) including a lower cage ring (28) with an opening. The float (60) takes the form of a lower float and comprises a lower portion (62) defining a first internal cavity (64) and an open end (66) and a neck portion (68) defining a second internal cavity (70). The neck portion (68) has an outer dimension which is smaller than an outer dimension of the lower portion (62). The neck portion (68) is configured, in use, to extend through the opening of the lower cage ring (28).

Automatic air vent (100, 400, 500, 600) for use in a gas separator of a heat pump system, wherein the automatic vent (100, 400, 500, 600) has at least two vent valves (110, 200, 410, 510, 610) and a float (120, 420, 520, 620), wherein each vent valve (110, 200, 410, 510, 610) has a lever arm (111, 411, 511) with a contact medium, wherein the float (120, 420, 520, 620) has a respective contact area (121, 321, 421, 521, 621) which is designed to contact the contact medium of each vent valve (110, 200, 410, 510, 610), wherein the float (120, 420, 520, 620) contacts each vent valve (110, 200, 410, 510, 610) in such a way that, when it rests on a liquid, it opens a vent valve (110, 200, 410, 510, 610) depending on the liquid level, and wherein the automatic vent (100, 400, 500, 600) is designed to open at least two vent valves (110, 200, 410, 510, 610) at different fill levels.