CN104968982B - It is a kind of to be adapted to maintain the fluid flow control device of volume area fluid level - Google Patents

Abstract

It is a kind of to be adapted to maintain the fluid flow control device of fluid level of the fluid to setting in volume area.The device is included positioned at the floating equipment rested in the cavity on the inside of fluid volume area, the floating equipment is connected with pivotal support arm, the pivotal support arm carrys out shut-off valve assembly to prevent fluid from being passed through from supply inlet effluent to fluid control device outlet side hence into volume area in lifting position adaptation, and when the pivotal support arm is located at down position adaptation to open valve gear to allow fluid to be flowed into from supply inlet in volume area.

Description

It is a kind of to be adapted to maintain the fluid flow control device of volume area fluid level

Technical field

The present invention relates to a kind of new and improvement fluid flow control device, the fluid flow control device uses adaptation To maintain the valve system of appropriate fluid liquid level in volume area, and the present invention relates more specifically to a kind of valve system, the valve system It is related to the use of floating equipment, it is the shortcomings that floating equipment can overcome or exclude conventional former available float valve, such Float valve influences (this upset by encrustation and the solid of dissolving on other caused by the architectural feature of the valve in fluid The feature of controlling organization), and usually risen and fallen by interval fluid level as caused by surface wave motion etc. and released and inappropriate The problem of releasing body, so as to cause to provide flow of fluid by the device excessively to use valve system and/or pump and valve machine Structure cooperates.

Background technology

As usual, simple and convenient constructional device is had been provided for using the valve system of floating equipment, to being capable of root It is that float is depended in lifting position or down position in lifting position or down position control flow of fluid according to float Fluid level in volume area.

For example, in animal groove, float will be connected to an arm, foreseeable, when fluid level declines in groove, the arm Control valve simple to operate, wherein animal are drunk water and/or evaporated from groove or other environmental conditions are had been observed that under water level Drop, float reduces and wherein reducing for float activates the attached arm for being connected to valve system to allow water in the entrance and exit of device Between flow.

In many cases, this control to water to groove can become easy by using pump, therefore water level in groove every time When needing lifting, at the same time, pump will be opened with by controlling valve system to help water to flow into groove.

But as it would be appreciated, float is the external equipment of exposure, simplify in its architectural feature, by first in groove Element and water surface disturbance.

In many fluid flow control devices, the solid being dissolved in water is generally settled out from solution and is changed into tying Dirt is formed on float and valve system, causes accumulation to a certain extent, and this accumulation is very likely to and can blocked in any position Float, but regardless of the fluid level in volume area how, in this example, volume area is we mean that a kind of animal Groove.

It can therefore be seen that if float is stuck in a position, the position without considering fluid level, valve can be fixed In "ON" or off-position, any position all has potential adverse effect.

If for example, the fouling on floating equipment is such that valve system is maintained at open position, then knot Fruit will be that water continues to flow into groove through valve, overflow and waste extremely valuable resource.

Focus attentions equally on, if fouling effect is such that floating equipment or phase when trough inner water position becomes to decline Closing valve system becomes to be stuck in closing position, and due to the fact salt is in fouling on valve system, as long as valve works, float is with regard to effective Ground is maintained at lifting position and therefore entered without water in groove, therefore will be introduced into without further water.

When groove fluid level is maintained at low or space-time, those animals for relying on groove supply water start to become to be dehydrated, and if The failure of idle valve is not identified in reasonable time, and those animals will die.

The other problems of conventional float mechanism relate to the fact that, i.e., are moved down when on the apparent motion of float fluid-responsive When dynamic, the things of wave motion etc. is identified by float and is simply interpreted as the decline of fluid level and/or risen Volt, although temporarily, this will cause water to be continuously added in short time interval into fluid volume area.

Easily the imagination is in swimming pool, when there is motion, people jump etc., wave motion will be introduced in swimming pool It is interior.

Using conventional float mechanism, the apparent motion of this ripple is identified and when float moves downwards through immediately by float During the trough of ripple, this is identified as fluid level and declines and therefore open current, although simply temporarily, because in wave period Crest at float upward motion will then see valve system close, will if being comprised in valve system in water system Draw water.

The following fact has aggravated this problem：Substantially continuous interval is unnecessarily filled to swimming pool；Rely on the pump of pump The on and off situation drawn water means the excessive use of pump, so as to add the operating cost of pump and maintenance and cause shorter make Use working life.

Same situation is equally relevant in animal groove, and not only wind etc. can produce a certain degree of table in animal groove The motion of animal and their drinking motion result in the slight fluctuating of fluid level in face ripple activity and groove, although and again Temporarily, but still "ON" and "Off" fluid is will be seen that using conventional valve gear or fed water by valve gear pump, because for sudden and violent The float mechanism of dew, have no idea to avoid the raising and lowering as the result of surface wave using these conventional equipments.

Therefore, if possible fluid control device is introduced in correlative technology field to maintain volume area (as swum Pond, animal groove and/or vaporizing type air conditioner) in fluid level, this will be particularly advantageous, and it can avoid and be opened being responsible for valve These problems related to the salt fouling on the valve system of pass and can also solve with not responding volume area by surface wave Fluid level instantaneously rise and fall correlation the problem of.

It is an object of the invention to provide a kind of fluid control device, and it can use relocation mechanism to maintain fluid in volume area Liquid level, the relocation mechanism not scale effect by undissolved salt on valve system, the floating engine in any substantial extent Structure will control fluid flow through valve system and will also not by inadvertently allow flow of fluid through valve system (this only because Rise and fall or come self-relocation or any physical disturbance of its interior other fragment caused by the fluctuation in flow surface in volume area) Influence.

The content of the invention

Correspondingly, in a kind of form of the present invention, there is provided a kind of to be adapted to maintain fluid extremely setting in volume area The fluid flow control device of fluid level, described device include：

Cavity, wherein cavity outer wall are adapted to rest at least in part in the fluid being maintained in volume area, and its Middle cavity is arranged and is adapted so as to when fluid is sucked into or discharges cavity, the fluid level and volume area in cavity Fluid level is consistent；

Floating equipment, adaptation float on the fluid in cavity, and the floating is when reaching the fluid level of setting Float lifting position and when the fluid in cavity less than setting fluid level when float down position between；

The floating equipment is connected with pivotal support arm so as to the pivotal support arm when floating equipment is in float lifting position In lifting position, and when floating equipment is in float down position pivotal support arm in down position；

Carry out shut-off valve assembly in the pivotal support arm adaptation of lifting position to prevent fluid from being passed through from supply inlet effluent To fluid control device outlet side hence into the volume area, and when the pivotal support arm down position be adapted to To open valve gear to allow fluid to pass through the outlet side to fluid control device from supply inlet effluent and then enter the volume In region.

Correspondingly, in another form of the present invention, there is provided a kind of to be adapted to maintain volume area fluid level Fluid flow control device, described device include：

Cavity, wherein cavity outer wall are adapted to be immersed at least in part in the fluid of volume area.

Floating equipment, it is adapted to be fluctuated according to the liquid level of the fluid on the inside of cavity in cavity.

The floating equipment connects with pivotal support arm, and pivotal support arm is according to the rise and decline of floating equipment in cavity Position and be raised and lowered.

The arm connects with valve gear enters the containment volume to control fluid to be flowed out from supply inlet side via outlet side In domain；And

So as to using when fluid be sucked into or discharge the cavity with consistent with fluid level, cavity submerges at least in part In the fluid of volume area, characterized so as to the rising of cavity fluid inside by the rising of floating equipment, the rising of floating equipment Lifting pivot arm enters raised position, and raised position is delivered to valve gear so that reaches the fluid level of volume area, and its In when water is extracted from cavity, it is lowered sign by floating equipment, pivotal support arm is thus reduced, under pivotal support arm Drop is passed to valve gear to be identified so that the fluid level in volume area is in the lower section of fluid level set in advance And correspondingly then fluid is conveyed through valve gear, enter volume area from entrance by outlet.

Preferably, cavity has longitudinal cylinder with valve system, and valve system is at the top of the cylinder.

Preferably, fluid flow control device further comprises floating slider.

Preferably, valve gear includes the valve body that can be fixed to the top of cylindrical cavity.

Preferably, valve body include installation support member, be oriented to elongated portion can be extended from the inner length along cylindrical cavity to Support member is installed.

Preferably, elongated portion is oriented to be cylindrical, and its openend is adapted for fix or resting on cylindrical cavity base On the inside dimple in portion.

Preferably, be oriented to elongated portion can threadingly engage valve body so as to installation site be oriented to elongated portion at one end through Thread rack is fixed against valve body, and in the other end by being fixed by the inside dimple around cylindrical cavity to be fixed.

Preferably, fluid flow control device further comprises the floating slider for connecting floating equipment.

Preferably, floating equipment is generally circular configures and is reduced with diameter to the size of cylindrical cavity diameter.

Preferably, floating equipment includes internal thread hole, and floating slider includes corresponding screw thread, so as to floating equipment energy according to Need to be screwed on and screwed off by floating slider screw thread, be fluid volume area for valve gear to establish predeterminable fluid level Operate to the default fluid level.

Preferably, floating slider is included in the skirt section extended laterally and/or the shoulder of the floating slider upper end.

Preferably, pivotal support arm includes the hook-shaped configuration positioned at one end, wherein hook-shaped configuration adaptation is slided to surround to float The skirt section extended laterally of block and/or shoulder hook and engage the skirt section extended laterally and/or the shoulder of the floating slider.

Preferably, pivotal support arm includes circular cam arrangement in the opposite end of the hook-shaped configuration of pivotal support arm.

Preferably, the circular cam configuration contact engagement actuator rod of pivotal support arm.

The decline of floating equipment on the inside of cylindrical cavity is horizontal interrelated with the motion upwards of actuator rod, actuating Device push rod is connected with valve system and the primary seal including separating the outlet of the entrance of valve gear and valve gear, so as to actuator The rise of push rod and the rise of valve seat it is interrelated with allow fluid outflow enter fluid volume area through valve gear.

The advantage of this device is that floating equipment first is internally housed in the cylindrical empty of more commonly referred to as tank Intracavitary.

Because floating equipment is placed on the inside of cavity, therefore it is not exposed under external environment condition, wherein fluid control The evaporation for the fluid that device processed is controlling is by salt that Precipitation dissolves and potentially becomes in the architectural feature of valve gear Fouling, by making floating equipment defective valve dirty in any constantly "ON" or off-position.

Fortunately, in the present invention, those architectural features associated with floating equipment all easily and are uniquely received Rong Yi is controlled on the inside of the main tank block of the cylindrical cavity of its interior air.

Preferably, cavity is included in the entrance of its base portion, and enabling fluid flow is interior through it and with the ripple in specific volume region The speed outflow that movement rate substantially reduces.

In other embodiment, it is allowed to which fluid, which passes in and out cavity or the ingate of tank, to be located at along cavity preferred From anywhere in below fluid level.

But as expected, when tank is placed on fluid volume area (such as animal groove, vaporizing type air conditioner, swimming pool Etc.) it is interior when, water is by initially in required liquid level.

Floating equipment will be positioned in volume area in the preferred liquid level of fluid, so as to when groove, vaporizing type air conditioner and/ Or during fluid level raising and lowering in swimming pool etc., floating equipment is with action.

When water be extracted out of volume area and thereby fluid level decline and therefore floating equipment moves on to lower position When, this will fall pivot arm, and pivot arm will force actuator rod to push up, valve gear then be engaged, eventually through valve system The rise of valve seat is seen to allow water to enter volume area until reaching required fluid level in volume area through valve gear, This will will have been enter into cylindrical cavity, so as to cause on floating equipment again with following true sign in the time point, water Rise, then this causes pivot arm is placed into raised position and actuator rod is lowered to the position, and primary seal returns To at its valve seat, therefore any further fluid is prevented to be flowed into from valve system into volume area.

In other purposes, device is equipped with superior for head case, vaporizing type air conditioner, swimming pool, animal groove etc..Enter One step, valve can be installed on non-rigid support part and can still realize the function of Liquid level.

When with reference to preferred embodiment and accompanying drawing, more detailed aspects of valve gear and integrated model will be by more detail Discuss.

Nevertheless, having described a kind of unique fluid flow control device at the time point, the device is as floating Dynamic equipment is maintained on the inside of tank, it is meant that it is such as evaporated, this can cause to be directed to float by less external environment influence With the fouling of valve system architectural feature so that they do not work.

It is equally important that the control moved up and down in hollow cylindrical intracavitary side due to floating equipment is by entering and leaving The water of ingate below preferred liquid level determines, it is therefore intended that the activity of surface level ripple temporarily will not inadvertently cause Valve system "ON" and "Off".

The physical disturbance of float movement is prevented by shell as discussed above, if fluid control device is connected to To help flow of fluid, the acceleration that "ON" and "Off" action on pump will also result in pump deteriorates and increase is safeguarded pump.

Brief description of the drawings

Now in order to which the present invention is more fully described, preferred embodiment is shown under the assistance of context below and accompanying drawing.

Fig. 1 is the cross-sectional view strength of fluid flow control device in a preferred embodiment of this invention.

Fig. 2 is the valve gear of fluid control device in a preferred embodiment of this invention enlarging section in the closed position Point.

Fig. 3 is relative to the similar expression in an open position of Fig. 2 valve gear.

Embodiment

Now referring more particularly to accompanying drawing, wherein the fluid flow control device of the present invention is depicted herein generally as (10) and its bag Include the main cylindrical cavity for being referred to as float chamber cover (14).

Float chamber cover (14) is connected to upper valve body portion (31).

Valve body (31) includes floating load elongated portion (15), and it is threadably installed to valve body and in the shown other end with horizontal stroke at one end The mode of Section Point (45) and (46) is rested on around internal dimple (44).

Screw thread (47) of the floating equipment (8) along floating slider (18) is through.

Floating slider (18) includes skirt section or the shoulder (48) extended laterally in its upper end, by actuator jaws joint pin (17) The hook (49) of the actuator jaws (16) of pivotal support arrives skirt section or shoulder (48), and actuator jaws joint pin (17) is supported on floating load In elongated portion.

Actuator jaws (16) include cam type configuration (50) in the opposite end of hook (49), and it contacts company with actuator rod It is logical, so that when actuator jaws (16) are raised and lowered according to the fluid on the inside of flotation chamber, the pivot of actuator jaws (16) is transported Dynamic and floating equipment (8) relative motion is related by the motion up and down to actuator rod, actuator rod it is upward With the valve system for moving downward triggering and being comprised in valve body (31), this will be discussed in detail below with reference to Fig. 2 and 3.

Usually, there is entrance (52), wherein fluid is by mean of primary seal (13) prevention through valve body (31) and is somebody's turn to do Annular vent collector (53) in seal separation valve body (31), then this causes drain flow path as shown in Figure 1 (54).

The key character obtained from the present invention is the fact that that is, floating equipment is housed in the inner side of pot device. In preferred embodiment, floating equipment is screwed onto on floating slider, and wherein the floating slider includes that actuator can be engaged at one end The skirt section extension of pawl.

The fluid level that the up and down motion of float is depended on the inside of fluid volume area, fluid control device will be applied to This volume area, this volume area are such as swimming pool, vaporizing type air conditioner, animal groove.

As the result of floating equipment, when floating slider moves up and down, it can be pulled down when fluid level is lowered Actuator jaws, and can be introduced in fluid in fluid volume area and draw actuator again up when reaching required fluid level Pawl.

In a preferred embodiment, the reason for valve system is started working is due to match somebody with somebody in the cam positioned at actuator jaws one end Interstructural relation between the actuator rod put and upwardly extended, interstructural relation energy will be in raising and lowering position Between the circular motion of actuator jaws that pivots be converted into the opening and closing of valve system, i.e., by entrance (52) and outflow (54) opening and closing of separated primary seal (13).

Referring now to Fig. 2 and 3 and the actual motion of valve system.

Valve is designed to the automatic fluid level for maintaining the setting in volume area, while not by creating disturbances to circulation and interference Influence.

The liquid level of valve is adjusted and provided (when float chamber cover (14) is removed) by mobile float (8), and this is mobile floating Son can be screwed on the surface of floating slider (18) along the thread contour of molding.

Fluid level location sensitive is sent to the actuator jaws on pivot (17) via floating slider (18) (16) actuator rod (10), is caused to be shifted via the cam contour being incorporated in actuator jaws (16) at contact point.

Actuator rod (10) moves freely in actuator rod pipe (23), and actuator rod pipe (23) includes workplace Gap (working clearance), once working clearance permission poppet seal element (21) is by actuator push rod pin (22) Upward motion displacement when, fluid is discharged from bonnet (2), wherein by poppet resets spring (20) by poppet seal element (21) normally it is held against on the hole of actuator rod pipe (23).

Due to the reaction of diaphragm assembly back-moving spring (19), valve is flowed into occur in path (55) and run into and closed in normal The valve face of closed position.The metering stream of fluid can be via the interannular between the geometrical clamp (11) in actuator rod pipe (23) and barrier film Gap passes through diaphragm assembly.Such flowing will produce pressure balance in bonnet (2) chamber and between flowing into, and cause in barrier film (6) On closing force, the area that the closing force and the surface area of barrier film (6) are put on valve seat thereon to primary seal (13) is proportional.

When actuator rod pin (22) opens poppet and bonnet (2) chamber by actuator rod pipe (23) with more than inflow When being drained to the speed of the speed of chamber, the opening of valve occurs.The decompression of resulting bonnet (2) chamber allows on diaphragm assembly Rise and flow through primary seal (13) and enter annular vent collector (53), then arrive path (59) along discharge duct (54).

Claims (6)

1. a kind of fluid flow control device for being suitable to maintain fluid level of the fluid to setting in volume area, described device bag Include：

Cylindrical cavity and the valve gear that can be fixed to the cylindrical empty top of chamber, the wherein cylindrical cavity can be at least partly Ground, which immerses, to be maintained in the fluid in volume area, during to be sucked into when fluid or to discharge the hole on the cylindrical cavity, Fluid level in the cavity is consistent with the fluid level of the volume area；

Elongated portion is oriented to, it can be installed to the valve gear and can be installed to the cylindrical cavity in opposite end at one end Base portion, to fix the guiding elongated portion in the appropriate location of the cylindrical empty intracavitary；

Along it is described guiding the slidable floating slider of elongated portion, the floating slider be included in the horizontal skirt section of upper end and further The floating equipment attached including external energy, when being externally attached to the floating slider, the floating equipment adaptation is come in institute State and floated on the fluid of cylindrical empty intracavitary, the floating rises between the floating slider when reaching the setting fluid level Position and when the cylindrical empty intracavitary fluid be less than the setting fluid level when floating slider down position between；

Pivotal support arm, there is the pawl in the horizontal skirt section for being adapted for engaging the floating slider, and the pivotal support at one end Arm has cam at pivotal support end, wherein the cam energy contact engagement actuator rod, is characterised by when described float is slided The pawl of block pivotal support arm in floating slider lifting position in lifting position, and when the floating slider float slide The pawl of the pivotal support arm is in down position during block down position；

So that when the pawl of the pivotal support arm is in the lifting position, the cam end of the pivotal support arm can be rotated to hang down Directly reduce the actuator rod and prevent fluid from being passed through from supply inlet effluent to the fluid stream to close the valve gear The outlet side of dynamic control device works as the pawl of the pivotal support arm in the down position hence into the volume area When, the cam end of the pivotal support arm can rotate the above and push away the actuator rod to open the valve gear to allow fluid The outlet side to the fluid flow control device is passed through hence into the volume area from the supply inlet effluent.

2. device according to claim 1, wherein the guiding elongated portion is cylindrical, the cylinder can be installed to The opposite end of the base portion of cavity has opening, and the opening is adapted for that the inside at the base portion of the cylindrical cavity can be surrounded Dimple is installed.

3. device according to claim 2, wherein the guiding elongated portion can threadably be installed to the valve gear.

4. device according to claim 1, wherein the generally circular configuration of the floating equipment, the diameter having is less than described The diameter of cylindrical cavity.

5. device according to claim 4, wherein the floating equipment includes internal thread hole and the floating slider includes phase Screw thread is answered, so that the floating equipment can be screwed on and screwed off by the floating slider screw thread to establish the fluid liquid of the setting Position.

6. device according to claim 1, wherein the hole position of the cylindrical cavity is in the base portion of the cylindrical cavity, its Middle fluid is drawn into the hole or discharged from the hole.