52results about "Floats for valve actuation" patented technology

The invention is suitable for the technical field of cleaning. The invention discloses a water tank device with balanced internal and external pressure, which comprises a water tank body provided with a storage cavity for storing liquid, a water inlet and outlet mechanism arranged on the water tank body and communicated with the storage cavity after the water tank body is pressed, and a pressure relief mechanism capable of keeping the pressure of the water tank balanced, and the pressure relief mechanism comprises a pressure relief pipe connected with the water inlet and outlet mechanism; a buoyancy component capable of adjusting air pressure in the water tank body is arranged at the free end of the pressure relief pipe, and the pressure relief pipe is provided with a flexible structure between the water outlet pipe and the buoyancy component. Due to the fact that the pressure relief mechanism can keep the air part in the water tank communicated with the outside through the water inlet and outlet mechanism, when pressure occurs in the water tank in the cleaning process, air and clear water can be conveyed out of the water tank together, the internal pressure of the water tank is effectively reduced, the internal pressure and the external pressure of the water tank are balanced, and the pressure rise phenomenon generated in the water tank is avoided.

A refrigerator includes: a body including a storage compartment; a door that opens or closes the storage compartment and includes a dispenser; a water tank case disposed in the door; a water tank separably mounted in the water tank case; a water level sensor configured to sense a water level inside the water tank when the water tank is mounted in the water tank case; and a water tank valve configured to guide water supplied from a water supply source to the dispenser or the water tank, and to prevent water from being supplied to the water tank when the water level sensor senses that a certain amount of water is stored in the water tank.

The utility model provides a vacuum breaking water stop valve. The vacuum breaking water stop valve comprises a valve body and a partition plate. The partition plate divides the internal space of the valve body into an air outlet channel and an air inlet channel, an outlet of the air outlet channel is located on one side of the bottom of the valve body, and an inlet of the air inlet channel is located on the other side of the top of the valve body. A connecting channel opening for communicating the air inlet channel with the air outlet channel is formed in the partition plate; a water return hole is formed in one side, close to the bottom of the valve body, of the partition plate; a floater is arranged below the connecting channel opening, and a connecting rod penetrating through the connecting channel opening is arranged above the floater; a vacuum breaking chamber is arranged at the top of the valve body, a vent hole is formed in a shell of the vacuum breaking chamber, and a connecting rod inlet and a sealing module for sealing the connecting rod inlet are arranged at the bottom of the vacuum breaking chamber; the upper end of the connecting rod penetrates through the connecting rod inlet and is fixedly connected with the sealing module. In the using process, vacuum breaking and water stopping can be automatically and rapidly achieved, water or other liquid is effectively prevented from damaging the liquid ring pump, and therefore the reliability of vacuum water diversion equipment is improved, and the service life of the vacuum water diversion equipment is prolonged.

Some embodiments include a fluid valve assembly with an outlet base dimensioned to be positioned through a drain in a fluid tank, and a float assembly including a moveable float. The moveable float can form a fluid-tight seal at a first end when the moveable float is coupled to the outlet base, and a flow opening when the moveable float is at least partially decoupled from the outlet base. Some embodiments include a housing positioned with the moveable float, where the housing encloses a suction device coupled to a moveable piston. Some embodiments include an actuable diaphragm positioned in the outlet base, and a compressed air tube or passageway coupled to one side the actuable diaphragm. In some embodiments, the actuable diaphragm is configured and arranged to be actuated by compressed air to move the moveable piston.

The present application discloses a composite exhaust valve, which includes a valve body, a valve cover, a pressure cover, a float cover, a float body, and a guide rod. The valve body is provided with openings at both ends. The valve cover is connected to the top opening of the valve body, and the pressure cover is connected to the top of the valve cover. The valve body includes a receiving portion and a connecting portion. The float cover is disposed in the receiving portion and has a connecting port. The float body is disposed in the float cover. The valve body also includes a partition plate, a rotating rod, and a top plate. The partition plate is horizontally connected to the inner ring wall of the connecting portion and has a plurality of vent holes. The rotating rod vertically passes through the float cover and is slidably connected thereto. The top plate is disposed in the float cover and is connected to the float. An abutment block is connected to the edge of the top plate. A stopper arc block corresponding to the position of the stopper arc block is connected to the inner wall of the float cover. The stopper arc block is in contact with the bottom surface of the stopper arc block. The present application has the effect of extending the service life of the exhaust valve.

The invention relates to the technical field of oil tank exhaust valves, in particular to a zero-leakage oil tank valve. Comprising an inner shell and an outer shell sleeving the outer side of the inner shell; the opening of the inner shell and the opening of the outer shell are oppositely inserted; an exhaust hole penetrates through the upper end of the inner shell; the outer diameter of the inner shell is smaller than the inner diameter of the outer shell; an inner vent hole is formed in the lower position of the outer wall of the inner shell in a penetrating manner; an upper vent hole is formed in the top of the inner shell in a penetrating manner; an outer vent hole is formed in the upper position of the outer wall of the shell in a penetrating manner; a lower air hole penetrates through the center of the bottom of the shell; according to the oil tank valve, the gas-permeable membrane which can permeate oil gas and intercept oil is arranged on the inner side of the exhaust hole of the oil tank valve, and the floater and the first spring are matched, so that the purpose of zero leakage of the oil in an oil tank is achieved, and the application effect of the oil tank valve is improved.

The present invention proposes a time-controlled waterway switching device, comprising a valve body, a water inlet passage, waterway A, waterway B, and a float. A float is disposed within the float chamber of the valve body. A water inlet passage is disposed on one side of the valve body, communicating with the float chamber. Waterway B is disposed at the bottom of the valve body. Valve seats A and B are disposed above and below the valve body, respectively. When water flows into the water inlet passage, water pressure presses the float against valve seat B, causing water to flow out of waterway A. When water flow stops, the float rises, sealing valve seat A, causing water to flow out of waterway B, and the float chamber slowly drains water. When the float is above the water inlet of the water inlet passage, water flows into the water inlet passage, presses the float against valve seat A, causing water to flow out of waterway B. When water flow stops, the float sinks as the liquid level in the float chamber drops, causing water to flow out of waterway B. This waterway switching device can achieve time-sequential control of two water outlets by one electrically controlled solenoid valve.

The present invention relates to the technical field of water inlet valves. Disclosed is a single-float barrel water inlet valve. A water inlet channel and a water outlet channel of the water inlet valve are connected or disconnected by means of a valve. A single-float barrel is configured to control the valve and has a groove into which water is injected and a buoyancy chamber. The water outlet channel is provided with a flow guide component. The flow guide component is provided with a water receiving cavity. The water receiving cavity is configured to receive water from the water outlet channel. A water outlet hole is provided at the bottom of the water receiving cavity. A water guide plate covering the water outlet hole is provided above the water outlet hole and is configured to guide water entering the water receiving cavity to flow between the water guide plate and the side wall of the water receiving cavity. A water passage gap is provided between the water guide plate and the water outlet hole, such that water flows through the water passage gap and the water outlet hole in sequence and flows into a water tank. The water receiving cavity is further provided with a flow guide channel configured to guide out part of a water flow in the water receiving cavity to fall into the groove, so as to provide an additional counterweight for the single-float barrel. The present invention prevents the water level in the water tank from being unstable under different water pressures.

The oil circulation arrangement includes a lower oil inlet portion, a filter unit (10) of a vehicle transmission filter, and an outlet (5) located higher than the inlet portion for immersion in the oil in the crankcase. The arrangement includes one or more valves (1) integrated into the inlet portion, each selectively allowing a flow of crude oil (F) when a float (2) provided in the valve is raised, releasing at least one shutter (21) movable according to the float's position. Access to the filter unit in the valve is thus opened when this float (2) is subjected to the buoyant force (Arch). A return element (20) is coupled to the access closure means, including the shutter, and prevents air from entering through this access, which, by the return effect without sufficient opposing buoyant force (Arch), remains closed. Figure from the summary: Figure 1

Apparatuses, methods, and systems are disclosed for techniques for fluid control. An apparatus includes a valve configured to control a flow of fluid into a tank, a float operatively connected to the valve and configured to actuate the valve based on fluid level within a container, and an activation lever configured to alter interaction with the float.

The utility model provides a drainer. The drainer comprises a water inlet and a water outlet, comprising a shell which is provided with a water inlet cavity, a pressure cavity and a first channel; the sealing element is movably arranged in the pressure cavity, and an inclined angle is formed between the moving direction of the sealing element and the axis of the first channel; the pressure relief mechanism is used for controlling the pressure state of the pressure cavity; when the pressure cavity is in the first state, the pressure in the pressure cavity is larger than that of the water inlet cavity and drives the sealing piece to block the first channel, and when the second pressure cavity is in the second state and the pressure of the pressure cavity is smaller than that of the water inlet cavity, liquid in the water inlet cavity jacks up the sealing piece, so that the water inlet cavity is communicated with the first channel. And liquid in the water inlet cavity is discharged to the water outlet through the first channel. The utility model has the beneficial effects that the pressure cavity is adjusted through the pressure relief mechanism, so that the pressure in the pressure cavity is greater than or less than the pressure of the water inlet cavity, and the sealing element moves through the pressure difference, so as to open or close the drainage.

To improve joint strength due to welding of a float and a mounting member.SOLUTION: A float coupling structure comprises: a hollow float 45; a mounting member 50 that has a base 51 provided on the outside of the float 45 and having a contact surface 51a that contacts an external surface 45c of the float 45 and is used to be coupled to a lever 46, and a plurality of protrusion parts 53 protruding from the contact surface 51a and penetrating the float 45; a first welding part 61 that welds the base 51 to the external surface 45c of the float 45; and a plurality of second welding parts 62 that weld each of the plurality of protrusion part 53 to an internal surface 45d of the float 45.SELECTED DRAWING: Figure 3

Provided is a valve device that suppresses the impact sound when a float valve descends and that does not easily lift the float valve. The valve device (10) has a housing (15) having a peripheral wall (55), a bottom wall (53), and a partition wall (21), and a float valve (80, 85) housed in the valve chamber in a manner that is capable of ascending and descending, which opens and closes an opening portion, a slit (60) that extends continuously on the peripheral wall (55) and the bottom wall (53), an elastic piece (66) that is capable of flexibly deforming formed via the slit (60), and a free end portion of the elastic piece (66) on the bottom wall (53) side, on which a float valve support portion that supports the float valve (85) is provided.

The invention relates to the technical field of aviation fuel systems, and discloses a light high-pressure-resistant transfer control float valve which is characterized in that a cavity is axially formed in a shell assembly, a medium inlet is formed in the left side of the cavity, a medium outlet is formed in the right side of the cavity, a valve is arranged in the middle section of the cavity and can move left and right in the cavity, and a cover is fixedly arranged on the end face of the right side of the cavity; the valve and the cover are both of a structure with through holes in the middle, the guide rod is inserted between the through holes of the valve and the cover, the guide rod is provided with a limiting boss on the left side of the valve and provided with a conical boss on the right side of the cover, the right end of the through hole of the cover is a sealing slope matched with the conical boss, and a large spring is arranged outside the guide rod in the radial direction and between the valve and the cover. The right end of the guide rod is connected with the floater assembly which is arranged in the medium box, and the density of the floater assembly is lower than that of the medium. Under the condition that the floater is submerged, when the pressure in the oil conveying pipeline is large, the sealing function can be achieved.

The utility model discloses a floating ball valve capable of adjusting the water level, and relates to a pipeline valve which is applied to a water tank and used for assisting water inlet in the water tank, and the floating ball valve structurally comprises a valve, a pull rod, a floating ball and the like, and is mainly characterized in that a valve rod for opening and closing the valve is connected with one end of the pull rod; a length-adjustable pull rope is arranged between the other end of the pull rod and the floating ball to form flexible connection; therefore, the floating ball can drive the pull rod and control the valve rod to open and close the valve at the set highest water level and the set lowest water level through the pull rope with the adjustable length, particularly, the pull rope is in flexible connection, the valve cannot be opened and closed once the floating ball does not reach the highest water level or the lowest water level, and frequent opening and closing times of the valve are reduced. Impact damage to a pipe network system caused by a water hammer effect generated by frequent starting of the water pump is reduced, the service life of the water level floating ball valve is prolonged, and use energy consumption is reduced; meanwhile, the water level in the water tank can be flexibly adjusted to a proper highest water level and a proper lowest water level for water discharging and water feeding, and the use reliability is also ensured.

An overfill prevention valve for use with a tank includes a valve element disposed in a fluid fill path and a float assembly including an actuator and a repositionable float. The float is selectively fixed relative to and moveable relative to the actuator to adjust a target fill level. The float is buoyantly supported by the fluid such that the float and the actuator are shiftable in correspondence with an actual fill level. The actuator is coupled with the valve element such that the valve element shifts to a closed position when the actual fill level nears a target fill level. The float includes discrete buoyant components that are shiftable away from each other and from the actuator to facilitate shifting of the float relative to the actuator and that are securable relative to each other and relative to the actuator to facilitate operation of the float assembly.

The utility model provides a drainer, which comprises a shell, a water inlet channel, a drainage channel, a water outlet channel, a water outlet pipe, a water outlet pipe, a water outlet pipe and a water outlet pipe, the drainage mechanism comprises a floating ball and a flexible plugging strip; one end of the plugging strip is fixed in the water inlet cavity, and the floating ball is fixed at the other end of the plugging strip; the drainage channel is positioned below the plugging strip; in a first state, the blocking strip is pressed down along with the gravity of the floating ball to block the drainage channel; and in the second state, the floating ball enables the plugging piece to swing or move upwards under the action of buoyancy so as to open the drainage channel. The drainage device has the advantages that the drainage channel is plugged through the flexible plugging strip, drainage can be achieved by small-amplitude swinging or upward floating of the floating ball, the internal space of the drainage device can be better utilized, and the drainage device is made smaller and more convenient to use.

The utility model discloses a gas collecting and deslagging visual automatic water discharging device, and relates to the technical field of pipeline treatment, in particular to a gas collecting and deslagging visual automatic water discharging device which comprises a water collecting tank, an internal thread sleeve is fixedly installed at the bottom of the water collecting tank, and an external thread sleeve is connected to the lower portion of the internal thread sleeve through threads. A drain valve is installed on the side, close to the bottom face, of the water collecting tank, a filter plate is fixedly installed inside the water collecting tank close to the drain valve, and a maintenance opening is formed in the side, close to the upper surface of the filter plate, of the water collecting tank. According to the gas-collecting and slag-discharging visual automatic water discharging device, the input pipe and the lower inclined baffle are arranged in a matched mode, so that the gas-water separation efficiency is improved, the floater assembly, the magnetic ring and the positive and negative pressure adjusting device are arranged in a matched mode, and therefore the gas-collecting and slag-discharging visual automatic water discharging device has the effect of preventing gas from leaking from the water discharging valve; and through the cooperative arrangement of the internal thread sleeve and the external thread sleeve, the gas collection and slag discharge visual automatic water drainage device has the effect that the installation height is convenient to adjust.

The invention is an apparatus for controlling the flow of a fluid, preferably water, to a body of water, such as a swimming pool or a pond. The apparatus includes a valve assembly which is configured to be mounted to a hollow shell. The exterior of the shell is decorated to represent a natural feature of the environment, for example, an aquatic animal. The underside of the shell is configured with a cavity, a portion of which is defined by at least part of the mounting portion of the valve assembly. The mounting portion includes a fitting to receive a hose supplying water to the valve assembly.

An automatic vent valve for a cooling water circulation system of a power plant, comprising: a valve body (1) on the top of which a vent opening is provided, the inner side of the vent opening having a funnel-shaped structure; a sleeve (2) arranged inside the valve body (1) and forming a vent channel with the inner wall of the valve body (1); a solid floating body (3) which is fitted to slide vertically in the sleeve (2); a hollow rubber ball (5) arranged above the solid floating body (3) and connected to the upper surface of the solid floating body (3) via a first traction cable (4).

The utility model provides an automatic control mechanism for pneumatically conveying liquid, which comprises a cover disc used for being connected with an equipment tank body in a matching way; the connecting rod mechanical arm is connected with the cover disc through a fixing bolt, and a floating ball upper limit device is installed at the bottom end of the connecting rod mechanical arm; the short shaft is installed at the bottom end of the connecting rod mechanical arm, a spring rocker arm is installed on the surface of the short shaft, a long shaft is arranged on one side of the spring rocker arm, and the long shaft is connected with a spring connecting shaft through a high-temperature spring; the bottom end of the power guide rod is connected with the spring connecting shaft, and the top end of the power guide rod is connected with a power guide rod guide hole plate; the top of the power guide rod guide hole plate is provided with the air inlet and exhaust valve rod adjusting plate, and the surface of the air inlet and exhaust valve rod adjusting plate is provided with an air inlet valve rod and an exhaust valve rod. According to the automatic control mechanism for pneumatically conveying the liquid, automatic control over the conveyed liquid is facilitated, meanwhile, sealing in the automatic control process is guaranteed, and the use requirement is met.

A fluid valve assembly (100) is disclosed which comprises an outlet base (125) dimensioned to be positioned at least partially through a drain (D) in a fluid tank (T), and a float assembly (101) including a moveable float (105). The moveable float (105) can form a fluid-tight seal (130) at a first end (105a) when the moveable float (105) is coupled to the outlet base (125), and a flow opening (132) when the moveable float (105) is at least partially decoupled from the outlet base (125). The fluid valve assembly (100) further comprises a housing (150) positioned with the moveable float (105) enclosing a suction device coupled to a moveable piston (152).

The valve element module comprises a valve body, the inner wall of the valve body is fixedly connected with a partition plate, the two side walls, opposite to the partition plate, in the valve body are each rotationally connected with a sealing plate through a torsional spring, the opening and rotating directions of the two sealing plates are opposite, and the side wall of the top of the valve body is fixedly connected with a vertical pipe; the water hammer valve has the advantages that the interior of the valve body is divided into two areas through the partition plate, when a water hammer effect occurs, the sealing plate can be opened under the driving of pressure, at the moment, water flushed from a water pool can enter the partition area above the partition plate, and therefore the water hammer effect is greatly improved, and the water hammer effect is greatly improved. The water flow is forced to enter the partition area, due to the arc-shaped structure above the partition area, the internal space is large, and the pressure generated by the water hammer can be effectively relieved when the water flow flows in the partition area, so that the negative influence caused by the water hammer is reduced, the service life of equipment and a pipeline is prolonged, and the practical performance of the equipment and the pipeline is improved.

The invention is suitable for the technical field of cleaning. The invention discloses a water tank device with balanced internal and external pressure, which comprises a water tank body provided with a storage cavity for storing liquid, a water inlet and outlet mechanism arranged on the water tank body and communicated with the storage cavity after the water tank body is pressed, and a pressure relief mechanism capable of keeping the pressure of the water tank balanced, and the pressure relief mechanism comprises a pressure relief pipe connected with the water inlet and outlet mechanism; a buoyancy component capable of adjusting air pressure in the water tank body is arranged at the free end of the pressure relief pipe, and the pressure relief pipe is provided with a flexible structure between the water outlet pipe and the buoyancy component. Due to the fact that the pressure relief mechanism can keep the air part in the water tank communicated with the outside through the water inlet and outlet mechanism, when pressure occurs in the water tank in the cleaning process, air and clear water can be conveyed out of the water tank together, the internal pressure of the water tank is effectively reduced, the internal pressure and the external pressure of the water tank are balanced, and the pressure rise phenomenon generated in the water tank is avoided.

The invention belongs to the field of drainage, and particularly discloses a suspension capable of automatically blocking reflux sewage of a rotational flow tee joint and a mechanism capable of automatically blocking reflux sewage, the suspension comprises the following components by mass: 20-30% of expanded vermiculite powder, 66-76% of plastic, 2% of a coupling agent, and 2% of PP (PE)-g-MAH; the suspended body with the adaptive density automatically floats upwards to conduct water flow by means of buoyancy of water during drainage and falls to the bottom to seal the connecting pipe by means of gravity after drainage is finished, and backward flowing of sewage under the reverse pressure of the rotational flow three-way pipe fitting is physically blocked; meanwhile, antibacterial master batches containing graphene, copper oxide and titanium oxide are compounded in the suspension, an expanded vermiculite porous structure anchoring antibacterial agent achieves long-acting antibacterial effect, it is avoided that bacteria decompose sewage to generate stink, and stink reverse flowing is thoroughly blocked in combination with physical sealing.

The invention relates to the technical field of hydraulic station oil recharging, and particularly discloses an oil recharging device of a wind turbine generator hydraulic station, which comprises a storage tank, an oil recharging pipe is arranged on one side of the storage tank, a hydraulic oil tank is arranged at one end of the oil recharging pipe, one end of the oil recharging pipe is connected with a switch valve, and a linkage rod is arranged on one side of the switch valve. A sliding groove is formed in one side of the inner wall of the hydraulic oil tank, a connecting rod is connected to the middle of the sliding groove, a floating plate is connected to one end of the connecting rod, a movable cavity is formed in the middle of the floating plate, and a floating plate is connected to the middle of the movable cavity. The device is further provided with a movable cavity and an embedding block, through cooperation of the movable cavity and the embedding block, when the floating plate floats on the oil surface through the floating plate, the floating plate is not affected by the up-and-down movement of the floating plate along with the oil surface, and meanwhile the floating plate can be subjected to certain position limitation through the embedding block; therefore, the linkage rod is not influenced by the up-and-down fluctuation of the oil surface to deflect.

Disclosed is a refrigerator. The refrigerator includes a body which includes a storage compartment, a door which opens and closes the storage compartment and includes a dispenser, a water tank case disposed in the door, a water tank separably mounted in the water tank case, a water level sensor configured to sense a water level inside the water tank when the water tank is mounted in the water tank case, and a water tank valve configured to guide water supplied from a water supply source to the dispenser or the water tank and to prevent water from being supplied to the water tank when the water level sensor senses that a certain amount of water is stored in the water tank.

The invention discloses a floating ball control valve which comprises a valve body, a floating ball, a valve rod and a floating ball. The valve element mechanism comprises a driving valve element, and the driving valve element can move along the driving valve cavity; the controlled mechanism responds to the action of the active valve element and sends a control signal; the liquid path triggering mechanism responds to the pressure rise of the liquid pipeline to enable the active valve element to be switched from the first position to the second position; the gas circuit triggering mechanism comprises an inner cavity formed in the valve body, a floater arranged in the inner cavity and a gas pipeline, a gas port is formed in the upper portion of the inner cavity, a liquid port is formed in the bottom of the inner cavity, and the gas pipeline is connected to the gas port; in response to connection and disconnection of the gas pipeline, liquid is injected into the inner cavity through the liquid opening, and the liquid in the inner cavity is discharged through the liquid opening, so that the liquid level of the liquid in the inner cavity is changed; the floater can vertically float based on the change of the liquid level; the floater moves downwards along with the liquid level so that the driving valve element can be switched to the first position from the second position.

This invention relates to a float valve based on a novel float structure and a refrigeration system incorporating such a float valve. The float valve of this invention includes a valve body, a connecting rod, and a float. One end of the connecting rod is connected to a liquid outlet, and the other end is connected to the float, which is disposed within the valve body. The float housing has an inlet port and an outlet port. An inlet check valve is installed on the inlet port, and an outlet check valve is installed on the outlet port. The inlet check valve flows from the outside of the float housing to the inside, and the outlet check valve flows from the inside of the float housing to the outside. Its advantages are: by installing two opposing check valves on a complete float housing, the pressure inside the housing is made equal to the pressure inside the valve body cavity, solving the pressure difference problem; this float relies on the buoyancy of the liquid and the difference in gravity of the housing to achieve displacement in height, avoiding the problem of the float becoming unbalanced due to pressure changes in the closed air pocket inside the float.

Apparatuses, methods, and systems are disclosed for techniques for fluid control. An apparatus includes a valve configured to control a flow of fluid into a tank, a float operatively connected to the valve and configured to actuate the valve based on fluid level within a container, and an activation lever configured to alter interaction with the float.