98results about "Aerating valves" patented technology

A valve connector includes a body having a first end adapted to attach to an American valve, a second end opposite the first end, and a through hole extending through both ends. A shoulder portion divides the through hole into a first accommodating portion and a second accommodating portion, with a sealing ring disposed on the second accommodating portion. A control member is movably disposed in relation to the body between a first and second position. The control member includes a body portion, a guiding hole, an abutting end, and a control end adapted to communicate with an air pump device. A venting portion is arranged between the abutting end and the control end, having a first cross-sectional area smaller than a second cross-sectional area.

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 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.

A pumphead comprises a housing having a first end defining an aperture configured to receive a valve head therein; a handle housing defining an air passage in fluid connection with the aperture and an air pump; and a lock arm comprising an end pivotally coupled to the pumphead housing at the end of the pumphead housing opposite the aperture; and a second end disposed between the handle housing and the first end of the pumphead housing. Pivoting the lock arm toward the handle housing locks the pumphead housing around the valve head when the valve head is received in the aperture.

In the field of agriculture and aerial firefighting, some example vent systems for aircraft fluid dispersion tanks include a combination of features that greatly minimizes the vent system's weight. Some examples of the vent system include a generally planar valve plug rigidly attached to a flexurally rigid but axially extendible strut. An upper end of the strut is suspended from a pivotal connector mounted centrally above the valve seat associated with the valve plug. As the vent closes, the pivotal connector ensures the valve plug can pivot into central alignment with the valve seat. In some examples, the valve plug includes a frusto-spherical outer perimeter to compensate for possible deviation in the connector's desired central alignment over the valve seat.

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 utility model discloses a high-vacuum negative-pressure valve which comprises a ventilation cylinder, a plurality of ventilation holes which are evenly distributed are formed in the ventilation cylinder, and first fixing plates are fixedly connected to the two sides of the ventilation cylinder. The sealing plates are arranged on the periphery of the ventilation cylinder, are attached to the ventilation cylinder and are used for covering the ventilation holes; the fixing devices are uniformly distributed on the fixing plate I and are used for fixing the sealing plate outside the air hole; the connecting cylinder is arranged below the ventilating cylinder, and the connecting cylinder and the ventilating cylinder are connected through a plurality of uniformly distributed connecting devices; the valve rod is arranged in the ventilation cylinder, the lower end of the valve rod is in threaded connection with a horn-shaped valve element, a valve plate matched with the valve element is arranged on the periphery of the valve element, and a valve port attached to the periphery of the valve element is formed in the middle of the valve plate. The inner wall is convenient to clean.

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).

The air filtering valve comprises an adjusting mechanism and a sealing mechanism arranged on the adjusting mechanism, the adjusting mechanism comprises a rotary button and a lower edge table fixedly connected to the lower end face of the rotary button, and the lower edge table is of a cavity structure with an opening in the upper end face and a hollow interior. The sealing mechanism comprises a base and a one-piece sealing upper cover arranged on the base, the two ends of the base are provided with openings, the interior of the base is hollow, an upper boss is fixed to the base, and the lower edge table is provided with a rotary knob air outlet hole penetrating into a cavity of the lower edge table, and the cavity of the lower edge table is filled with filtering cotton. And a base air outlet hole penetrating into the cavity of the base is formed in the base. The air filtering valve is simple in structure, and during air inflation, air is filtered by the filter cotton and then enters equipment to be inflated, so that dust, water vapor and microorganisms can be effectively filtered, the probability that external impurities such as dust enter the equipment to be inflated is reduced, and the service life is prolonged.

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.

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.

The utility model discloses an air inlet valve structure of an air gun, which relates to the field of air inlet valves of air guns and comprises a differential pressure pipe, internal threads are arranged at the rear end of the inner side face of the differential pressure pipe, the rear end of the differential pressure pipe is matched with the internal threads and connected with a separation pipe, a connecting pipe is fixedly connected to the rear end of the separation pipe, external threads are arranged on the side face of the connecting pipe, and internal threads are arranged on the inner wall and the outer wall of the differential pressure pipe. The front end of the differential pressure pipe is connected with a stud in a screwed mode, a fixed valve element is arranged in the front end of the differential pressure pipe, and a movable valve element is fixedly connected to the rear end of the differential pressure pipe. Through the cooperation of the fixed valve core and the movable valve core, the gas inlet and outlet can be conveniently controlled, the practicability is improved, the gas gun shooting gas discharging capacity is achieved, through the cooperation of the differential pressure pipe and the separation pipe, the abraded valve core can be conveniently replaced, the practicability is improved, and the capacity of maintaining the airtightness of the gas inlet valve by replacing the valve core is achieved; finally, the problem that air tightness is reduced due to abrasion caused by long-time use is solved.

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 present invention relates to a flood valve (10) for opening and closing a flood port in the housing of a vacuum pump. The flood valve (10) comprises a valve housing (12) for receiving in a flood port of a vacuum pump and a valve element (14) received by the valve housing (12). The valve housing (12) is penetrated by a through-bore (16) extending from a first axial end face (17) to a second axial end face (18) of the valve housing (12) and having an internal thread (20). The valve element (14) has a screw shank (22) with an external thread (24) by which the valve element (14) is screwed into the internal thread (20) of the through-bore (16).The screw shaft (22) has at a first end (25) a rotary drive (28) for actuating the valve element (14) to change the axial position of the valve element (14) relative to the valve housing (12) and at an opposite second end (26) a valve disc (30) which, in a first axial position of the valve element (14), rests against the second end face (18) of the valve housing (12) to seal the through-bore (16) and, in a second axial position of the valve element (14), has a distance relative to the second end face (18).

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 provides a valve body structure of a special valve, and relates to the field of valves. Comprising a bottom box, a detection device is arranged in the bottom box, the detection device comprises a supporting plate fixedly connected with one side of the bottom box, the upper surface of the supporting plate is fixedly connected with the lower surface of an inflator pump, and an air outlet of the inflator pump is fixedly communicated with an inlet of a first connecting pipe. According to the valve body structure of the special valve, the supporting plate, the inflator pump, the first connecting pipe, the sliding groove and the one-way valve are used in cooperation, and the special valve can be placed in the bottom box to be detected. When the special valve body is detected, the special valve is placed in the bottom box through the lifting fixing device, the first conveying pipe slides into the sliding groove and is aligned with the first connecting pipe, the special valve body is inflated through the inflation pump, and whether the special valve leaks or not is judged according to whether water in the bottom box generates bubbles or not. Water can be controlled not to enter the inflator pump through the one-way valve, and the function of detecting leakage of the special valve before use is achieved.

In the field of agriculture and aerial firefighting, some example vent systems for aircraft fluid dispersion tanks include a combination of features that greatly minimizes the vent system's weight. Some examples of the vent system include a generally planar valve plug rigidly attached to a flexurally rigid but axially extendible strut. An upper end of the strut is suspended from a pivotal connector mounted centrally above the valve seat associated with the valve plug. As the vent closes, the pivotal connector ensures the valve plug can pivot into central alignment with the valve seat. In some examples, the valve plug includes a frusto-spherical outer perimeter to compensate for possible deviation in the connector's desired central alignment over the valve seat.

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.

The present disclosure provides an automatic water change assembly, which includes: a control apparatus arranged inside the water tank assembly and configured to automatically add clean water to a water tank assembly, a water tank assembly including: a clean-water tank body; a water inlet pipe configured to add clean water to the clean-water tank body; and a float valve arranged in the clean-water tank body and configured to move vertically with a change of a water level in the clean-water tank body. In response to the float valve being located at a first position, the control apparatus controls the water inlet pipe to stop adding clean water to the clean-water tank body. In response to the float valve being located at a second position, the float valve blocks an outlet of the water inlet pipe through which water is added to the clean-water tank body.

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.

A pressure equalization apparatus, including a grid-shaped housing with a gas passage opening which connects an inner side and an outer side of the pressure equalization apparatus in a flow-conducting manner in a flow direction depending on a differential pressure. The gas passage opening is covered by an inner membrane, arranged toward the inner side, and an outer membrane, arranged toward the outer side, the inner and outer membranes being arranged in a gas-permeable manner and in a functional series circuit with respect to one another. The inner and outer membranes are arranged at a spacing adjacently with respect to one another, as viewed in the flow direction between the inner side and the outer side. A gas-permeable first protective structure is connected functionally upstream of the inner membrane on a side which faces the inner side, and / or a gas-permeable second protective structure is arranged in the spacing.

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.