CN100394087C - Check ball valve and water draining controller using valve - Google Patents
Check ball valve and water draining controller using valve Download PDFInfo
- Publication number
- CN100394087C CN100394087C CNB2004100748644A CN200410074864A CN100394087C CN 100394087 C CN100394087 C CN 100394087C CN B2004100748644 A CNB2004100748644 A CN B2004100748644A CN 200410074864 A CN200410074864 A CN 200410074864A CN 100394087 C CN100394087 C CN 100394087C
- Authority
- CN
- China
- Prior art keywords
- check valve
- ball
- port
- outflow
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
To provide a small ball check valve integrally moldable and inexpensive to mass-produce, maintaining its closed condition with smooth operation of a ball valve element while surely preventing back flow, and securing a preset flow rate while preventing pressure loss even when arranged in a saved space such as an underfloor, and to provide a drainage control device using the ball check valve, capable of being assembled in a narrow space for controlling the opened/closed condition of the ball check valve with high accuracy. At an approximately central position in a check valve body consisting of a flow-in cylinder portion and a flow-out cylinder portion, an annular valve seat is formed for parting it at a proper angle. A guide cylinder is formed along the direction of the axial center of the annular valve seat in the state of being integrally protruded from the check valve body. A ball valve element movably storing an inner portion of the guide cylinder is seated on the annular valve seat. A flow-out port is formed in the side face of the guide cylinder where the inner end of the flow-out cylinder portion is parted therefrom. At a position across the flow-out port, a space holding portion is arranged for spacing the ball valve element from the flow-out port.
Description
Technical field
The present invention relates to be used for the safety check of the pipe arrangement of the liquid of upper, middle and lower water or agricultural water, sewage, industrial water, other draining etc. or oil, gas etc., particularly, relate to the unboiled water system that is used for manhole pump assembly that following water uses or purification tank, be accommodated in building etc. underground drainage system etc. pipe arrangement midway and the ball check valve that can install along any direction of vertical-horizontal and the drain control unit that uses this ball check valve.
Background technique
As this ball check valve, known (for example have ball check valve for example shown in Figure 8, with reference to patent documentation 1), it is configured to: spherical ball valve body 41 is built in the main body 40 that is provided with inflow entrance 40a and outflow opening 40b, in this main body 40, be provided with guide portion 42 to ball valve body 41 channeling conducts, when the fluid forward flow, ball valve body 41 is avoided and do not hindered the mobile position of fluid, when fluid stops to flow, ball valve body 41 is owing to deadweight moves to closed position, fluid can not produce pressure loss ground and successfully not supply to second side from first side, thereby has the effect that can prevent adverse current etc.
; be used for the pipe arrangement that water treatment is down used; especially at the vertically safety check of configuration that is used for promoting manhole pump (the マ Application ホ one Le ボ Application プ) assembly of sending following water; especially in small-bore ball check valve; in order to prevent that the foreign matter in the fluid from stopping up; need guarantee to avoid gap bigger between path and the ball valve body; thereby can the swinging ball valve body; therefore; must remove and above-mentioned ball valve body is guided to the guide portion of avoiding the path guarantee to avoid gap between path and the ball valve body; in this case; the ball valve body that is contained in swingably in the valve chamber may be blocked the tap hole that is communicated to second side pipe jointing part path from valve chamber, thereby hinders fluid from first side flowing to second side.
And then, as above-mentioned manhole pump assembly, have the draining from single-family housing is passed out to down manhole pump assembly in the more small-scale building that water is responsible for, use the pipe arrangement of the resin of PVC etc. as this assembly.In order to be connected with this resin pipe arrangement, require the valve made of resin, as making above-mentioned ball check valve with resin and constituting the method for its structure, consider the method for use injection molding forming with few part.In this case, except needs carry out the demoulding from formed article, the valve with shape shown in Figure 8 can not form, that is, this shape has the space of expanding gradually towards inside from the outside that forms product.
Therefore, because the internal diameter of the communication path that links to each other with valve chamber from the second side pipe jointing part can not form greatlyyer than the caliber size of valve, so in the resinous ball check valve of making by injection molding forming, by in valve chamber, forming tap hole that communication path the forms path of having nothing for it but.Promptly, in the resinous ball check valve of making by injection molding forming, as mentioned above, have following problem: the ball valve body that is contained in swingably in the valve chamber is blocked the path tap hole that is communicated to the second side pipe jointing part from valve chamber always, thereby hinders fluid from first side flowing to second side.
Patent documentation 1
The spy opens 2000-170932 communique (1-3 page or leaf, Fig. 1)
As mentioned above; the ball check valve of patent documentation 1 is being set under the small-bore situation; need remove guide portion in order to ensure the gap of avoiding path and ball valve body, in this case, may be because the foreign matter in the fluid enters and makes ball valve body block the tap hole of second side.Again, can not to be undertaken with the resin by injection molding forming be the integrally formed of material to the ball check valve of such shape.
Again, under the situation of the pipe arrangement that water treatment under the along continuous straight runs configuration is used, for example, enlarging, converted block inside, reset under the situation of drainage equipment in each room, though ball check valve also needs along the inferior substantially horizontal setting in ground, but because the underground space that is provided with is restricted, so be difficult to dispose above-mentioned large-scale ball check valve.
On the other hand, the ball check valve that has only can dispose in vertical direction, the valve port footpath of being configured to of this ball check valve is connected by undergauge port (Off Le ボ one ト) not from the first side to the second side, though have the advantage of guaranteeing stream, but because be that main body base portion is located vertically in the structure on the center line of pipe arrangement, so can not keep the sealing of substantially horizontal, can not dispose this ball check valve by along continuous straight runs.
Therefore, be disposed under the inferior situation in ground, though the safety check of arrangements lifting valve etc. in general, it can dispose along any direction of vertical-horizontal and be can save the Y shape that ground, space is provided with, even but under the underground situation that such safety check is set, more need to be set to small-sized in order to save the space.In safety check, needs are brought into play the sealability of substantially horizontal and Vertical direction comparably for two sides' that satisfy the horizontal vertical direction use, therefore, must make a portion and be formed at valve body in the main body 45 degree that tilt.
Because this safety check is the structure that has made up the avoidance path of tubular on the fluid flowing path of tubular, so inner seat portion becomes lower side to the outstanding significantly shape of fluid flowing path one side in order to dock with valve body.Therefore, this safety check is difficult to become the structure that the valve port footpath is connected by undergauge port status not from the inflow entrance to the outflow opening, produce the problem that the pressure loss increases.
Like this, even the safety check of Y-shaped shape is arranged on underground, fluid is flowed, bore is more little to be difficult to guarantee stream more.
Again, with this check valve configuration between inflow one side of draining and pump the time, particularly, be arranged under the underground situation, need to consider that pressure loss part is to guarantee the output of pump fully, because export with the motor that this pressure loss part improves pump accordingly, so the efficient of control gear is poor.
As mentioned above, seek following ball check valve: be configurable at underground flat pattern, and there is not the pressure loss, and seek following control gear: be assembled in this safety check and be small-sized and flat, used in the system of pump, reasonably be configured in the inferior small space that is restricted in ground, can control with highi degree of accuracy.
Summary of the invention
The present invention carried out concentrating on studies in order to address the above problem, develop and form, its purpose is to provide a kind of ball check valve, it can integrally formed main body also be produced in batches at an easy rate, can not make the foreign matter in the fluid ball valve body be moved smoothly with entering, thereby can flow out drag flow reliably, prevent to keep the valve state that closes under the state of adverse current reliably.
Again, purpose is to provide a kind of small-sized ball check valve, even it is configured in place, underground constant pitch space-efficient, the flow that also can prevent the pressure loss and guarantee to stipulate, the present invention also provides a kind of drain control unit that uses ball check valve, it can be assembled in the narrow space, controls the open and-shut mode of ball check valve reliably with highi degree of accuracy.
To achieve these goals, the invention of technological scheme 1 is a kind of ball check valve, on the substantial middle position in the check valve body that constitutes by inflow tube portion and outflow tube portion, be formed with the ring-type valve seat of separating with suitable angle, the outstanding integratedly guiding tube that is formed with along the axis direction of this ring-type valve seat from check valve body, the mobile ball valve body that is accommodated in this guiding tube inside freely is landed on the aforementioned ring-type valve seat, be formed with the outflow port of the inner end of separating aforementioned outflow tube portion in the side of aforementioned guiding tube, on position, dispose and make the holding part that separates that aforementioned ball valve body and outflow port separate across this outflow port.
The invention of technological scheme 2 is a kind of ball check valves, utilizes resin to pass through injection molding forming and integrally formed aforementioned check valve body, utilizes lid to screw the upper end open portion of the guiding tube that this check valve body is installed freely via the loading and unloading of O shape ring.
The invention of technological scheme 3 is a kind of ball check valves, and preceding speed separates holding part and is provided with a pair of holding part that separates along the axis direction of guiding tube is outstanding near the position of outflow port.
The invention of technological scheme 4 is a kind of ball check valves, and the aforementioned holding part that separates makes it highly not be landed in height on the ring-type valve seat for not influencing ball valve body, and its length forms longlyer slightly than outflow port.
The invention of technological scheme 5 is a kind of ball check valves, with respect to the axis direction of aforementioned check valve body, with the outstanding integratedly guiding tube in angles of inclination of 45 degree roughly.
The invention of technological scheme 6 is a kind of ball check valves, on the substantial middle position in the check valve body that constitutes by inflow tube portion and outflow tube portion, be formed with the ring-type valve seat of separating with suitable angle, the outstanding integratedly guiding tube that is formed with along the axis direction of this ring-type valve seat from check valve body, the ball valve body that moves the inside that is accommodated in this guiding tube freely is landed on the aforementioned ring-type valve seat, be formed with the outflow port that the aforementioned inner end that flows out tube portion is separated in the side of aforementioned guiding tube, in this ball check valve, make aforementioned ring-type valve seat with respect to aforementioned inflow and outflow tube portion roughly 45 degree that tilt, and will form skewed aforementioned outflow port along the inclination of this ring-type valve seat and be communicated with to become not undergauge port status with the opening part of aforementioned inflow and outflow tube portion.
The invention of technological scheme 7 is a kind of ball check valves, disposes to make the holding part that separates that aforementioned ball valve body and outflow port separate on the position across aforementioned outflow port.
The invention of technological scheme 8 is a kind of ball check valves, and with the upper section otch of aforementioned outflow port, making the inlet side opening that flows out tube portion is rectangular shape on the direction vertical with guiding tube.
The invention of technological scheme 9 is a kind of ball check valves, and in the ball check valve of technological scheme 6, the diameter that goes out a side with respect to inflow one effluent of aforementioned inflow and outflow tube portion forms the diameter of aforementioned ball valve body with 2: 1 ratio roughly.
The invention of technological scheme 10 is a kind of drain control units that use ball check valve, be that along continuous straight runs is configured in the underground of building etc., at least be provided with the first side stream, the ball check valve that is connected with end one side of this first side stream, and the pump that is connected with the second side of ball check valve, the drain control unit that the draining of living drainage of flowing to second side from first side etc. is controlled, aforementioned ball check valve, on the substantial middle position in the check valve body that constitutes by inflow tube portion and outflow tube portion, be formed with the ring-type valve seat that 45 degree roughly separate that tilts with respect to aforementioned inflow and outflow tube portion, the outstanding integratedly guiding tube that is formed with along the axis direction of this ring-type valve seat from check valve body, the ball valve body that moves the inside that is accommodated in this guiding tube freely is landed on the aforementioned ring-type valve seat, be formed with the outflow port of the inner end of separating aforementioned outflow tube portion along the inclination of ring-type valve seat in the side of aforementioned guiding tube skewedly, make this outflow port be communicated with to become not undergauge port status with the opening part of aforementioned inflow and outflow tube portion.
The invention of technological scheme 11 is a kind of drain control units that use ball check valve, on the position across the outflow port of aforementioned ball check valve, disposes and makes the holding part that separates that aforementioned ball valve body and outflow port separate.
The invention of technological scheme 12 is a kind of drain control units that use ball check valve, and with the upper section otch of the outflow port of aforementioned ball check valve, making the inlet side opening that flows out tube portion is rectangular shape on the direction vertical with guiding tube.
According to the invention of technological scheme 1, can provide a kind of can integrally formed check valve body and the very little ball check valve of the pressure loss.And then the ball valve body that is accommodated in guiding tube can not blocked outflow port, drag flow is flowed out, and can keep the valve state that closes under the state that prevents adverse current reliably.And then the moving range of ball valve body that can guarantee to be accommodated in guiding tube inside is bigger, prevents that the foreign matter in the fluid from entering between the internal surface of ball valve body and guiding tube inside, and ball valve body is moved smoothly.
According to the invention of technological scheme 2, because can utilize resin to pass through injection molding forming and integrally formed check valve body, so can constitute ball check valve with few part number, mass productivity is good, and can reduce manufacture cost.Again because be utilize lid via O shape ring with the structure that the upper end open portion of the guiding tube of this check valve body screws installation, so when taking in ball valve body, can only constitute goods, can provide Economy also good ball check valve by the loading and unloading lid.
According to technological scheme 3 described inventions, can be integrally formed when check valve body is shaped because separate holding part, so its manufacturing is extremely efficient, and, owing to be provided with a pair of holding part that separates along the axis direction of guiding tube is outstanding near the position of outflow port, so the ball valve body that is accommodated in the guiding tube can not blocked outflow port, drag flow is flowed out.
Invention according to technological scheme 4, because even check valve body is ring-type valve seat and the approaching structure of outflow port, can not be landed on the ring-type valve seat by the stymy valve body yet, again, on internal surface above the guiding tube inside, do not form and separate holding part, so can guarantee the moving range that ball valve body makes progress in the footpath of guiding tube to greatest extent, the foreign matter in the fluid can not enter between the internal surface of ball valve body and guiding tube inside, and ball valve body is moved smoothly.
According to the invention of technological scheme 5, can be corresponding to any use of vertical pipe arrangement, horizontal pipe arrangement.
Invention according to technological scheme 6, it is ball check valve: the pressure loss that can reduce first side and second side with following effect, will the bore from the first side to the second side maintain the flow when the state of undergauge port is not guaranteed draining, thus draining promptly.Again, can be set to small-sized and flat,, also can be configured to level keeping under the situation of aforesaid valve performance even in the inferior small space in ground.
According to the invention of technological scheme 7, provide the ball check valve that a kind of check valve body can be integrally formed and the pressure loss is very little.And then the ball valve body that is accommodated in guiding tube can not blocked outflow port, and drag flow is flowed out, and can keep the valve state that closes with the state that prevents adverse current reliably.And then following ball check valve can be provided: the moving range of ball valve body of guaranteeing to be accommodated in guiding tube inside is bigger, prevents that the foreign matter in the fluid from entering between the internal surface of ball valve body and guiding tube inside, and ball valve body is moved smoothly.
According to the invention of technological scheme 8, check valve body can be integrally formed, and can reduce the pressure loss of first side and second side, makes fluid successfully flow to second side from first side.
According to the invention of technological scheme 9, can guarantee that fluid flowing path is bigger, even be set at ball valve body under the situation of small-sized and flat, also can augmented flow.
Invention according to technological scheme 10, provide the drain control unit of following use ball check valve: even in the inferior small space in ground, also along continuous straight runs assembling easily, can reduce the pressure loss of first side and second side, and control the open and-shut mode of ball check valve with high precision reliably.Again, can provide the drain control unit of following use ball check valve: because the pressure loss is little, thus need not to improve the motor output of pump, thus the efficient of pump lifting force etc. can be improved.
Invention according to technological scheme 11, it is the drain control unit of the very little use ball check valve of the pressure loss, the ball valve body that is accommodated in guiding tube can not blocked outflow port, drag flow is flowed out, and can keep the valve state that closes under the state that prevents adverse current reliably.Can make ball check valve action stably smoothly again.
Invention according to technological scheme 12, the drain control unit of following use ball check valve can be provided: check valve body can be integrally formed, and can reduce the first side in the ball check valve and the pressure loss of second side, can make fluid successfully flow to second side from first side.
Description of drawings
Fig. 1 is the longitudinal section of the coupled condition of expression ball check valve of the present invention.
Fig. 2 is the longitudinal section of expression ball check valve of the present invention.
Fig. 3 is the A-A line sectional view of Fig. 2.
Fig. 4 is the B-B line sectional view of Fig. 2.
Fig. 5 is the sectional view that the drain control unit of ball check valve of the present invention has been used in expression.
Fig. 6 is the longitudinal section of the 2nd mode of execution of expression ball check valve of the present invention.
Fig. 7 is the longitudinal section of the 3rd mode of execution of expression ball check valve of the present invention.
Fig. 8 is the longitudinal section of the prior art example of expression ball check valve.
Embodiment
Based on accompanying drawing the mode of execution of ball check valve of the present invention with the drain control unit that uses this valve described.
As shown in Figures 1 and 2, ball check valve main body 1 has the inflow tube portion 2 of first side and the outflow tube portion 3 of second side, and in this example, this check valve body 1 is integrally formed by the resin of PVC or PP etc.Have ring-type valve seat 4 on the substantial middle position of main body 1 inside, it is communicated with inflow tube portion 2, and, with respect to the roughly 45 degree ground formation of central shaft 1a inclination of stream (pipe arrangement 12).The inner peripheral surface of ring-type valve seat 4 is the inner conical surface 4b that tilts about 30 ° with respect to central shaft 4a in this example.Guiding tube 5, be along with ring-type valve seat 4 inclination, under the states of 45 degree that tilt with respect to central shaft 1a, form from check valve body 1 is outstanding integratedly along the axis direction of ring-type valve seat 4, spherical valve body moved be accommodated in freely among the inner 5a (below, be called valve chamber).On the linking portion of this guiding tube 5 and outflow tube portion 3, form outflow port 6 by separating inner end, valve chamber 5a is communicated with outflow stream 7 via this outflow port 6.
Flowing out stream 7 can form on not hole enlargement of the inboard of check valve body 1 ground, and check valve body 1 is made as and can forms in the following manner: utilize resin to carry out injection molding forming, thereby realize integrally formed.
Though the outflow stream 7 of second side is the rounded straight tube shape in cross section flowing out tube portion 3 one sides, but with valve chamber 5a above near the link position P, is suitable shape by the upper portion with outflow port 6 at the direction upper cut vertical with guiding tube, is the inlet side opening of fluid cartridge portion 3 with second side.As shown in Figure 3, the outflow port 6a of present embodiment on the direction vertical with guiding tube with above a side otch to the 5b of female thread portion that is used to install lid 11, make the inlet side that flows out tube portion 3 form bigger rectangular shape.
As the shape of outflow port 6, in addition, can be made as following shape: for example be valve chamber 5a cylindraceous and the intersection itself that flows out stream 7; The shape of outflow port 6b, in the drawings shown in dot and dash line, making with the top link position P with valve chamber 5a is the curved shape of fulcrum; The shape of outflow port 6c, shown in dotted line in the drawings, its Extreme breadth is made as identical with outflow port 6a, its top one side notch shape under the 5b of female thread portion is become semicircle; But by being made as the such shape of outflow port 6a, can be with valve port footpath φ d
1Be set to maximum near the inlet of one side.
At this, though also imagined the formation that reduces the pressure loss by the width that increases outflow port 6, because ball valve body 9 may be blocked outflow port 6, so undesirable.Therefore, need not to change the width of outflow port 6, by must be bigger with the upper portion otch, combine with the holding part 8 that separates described later, the draining W in the time of can guaranteeing out valve flows out to the flow of discharging stream 7 from the top of the valve body 9 (with reference to Fig. 2) of the centre that is positioned at valve chamber 5a, through outflow port 6 bigger.
In addition, in any outflow port (6a, 6b, 6c), the shape of valve seat 4 one sides is valve chamber 5a cylindraceous and the semi-circular shape that flows out the intersection of stream 7 itself, the leeway of otch is less significantly because with this part, so, in order to reduce the pressure loss that has with respect to the safety check of the guiding tube 5 that flows out stream 7 inclinations, it is the most effective that such as mentioned above upper portion to outflow port 6 carries out otch.
As shown in Figure 3, the part of above-mentioned outflow port 6a forms on the inner conical surface 4b that acts on ring-type valve seat 4, and the fluid by ring-type valve seat 4 directly is led to and flows out in the stream 7.
As shown in Figures 3 and 4, on position, separate holding part 8, can separate holding part 8 by this ball valve body 9 and outflow port 6 are separated along what the axis direction of guiding tube 5 (valve chamber 5a) formed that the cross section is the general triangular shape across outflow port 6.In this example, be formed with a pair of holding part 8 that separates, make it with respect to center symmetry of outflow port 6 and near the edge portion of outflow port 6 along outstanding setting of the axis direction of guiding tube 5 (valve chamber 5a).Thus, this separate holding part 8 can be when check valve body 1 be shaped by injection molding forming and integrally formed with guiding tube 5.
The length that separates holding part 8 forms the long slightly or length roughly the same with it than the aperture of outflow port 6, and upper end one side that separates holding part 8 is positioned near the axis direction center of valve chamber 5a, and on the other hand, lower end one side links to each other with the inner peripheral surface that flows out stream 7.Again, the height E that separates holding part 8 as shown in Figure 4, its size is: when taking in ball valve body 9, the center of this ball valve body 9 is consistent with the central shaft 4a of guiding tube 5, thus, even under ring-type valve seat 4 and the approaching state of outflow port 6a, can not be landed on the ring-type valve seat 4 by stymy valve body 9 yet.As this height E, for example in the ball check valve of valve nominal diameter 50A, block the outflow port 6 of path and must guarantee the viewpoint of flow from preventing ball valve body 9, be preferably more than the 6mm, be made as about 7mm in this example.Be higher than 7.5mm if separate holding part 8, then may be landed on the ring-type valve seat 4 by stymy valve body 9.
Light weight rubber moldings such as ball valve body 9 usefulness NBR in this example, make the single structure that core body is not set at the center of this ball valve body 9.Flow into the inflow one side valve mouth 2a footpath φ d of tube portion 2
3With the outflow one side valve mouth 3b footpath φ d that flows out tube portion 3
1Identical, with the diameter phi d of ball valve body 9
9Be made as with respect to this and flow out a side valve bore φ d
1, flow into a side valve bore φ d
3Be the ratio of (probably) 2: 1 roughly.
If with respect to valve port footpath φ d
1(φ d
3) increase φ d
9, then the trunk diameter of check valve body 1 and this diameter phi d
9Increase the internal diameter of ring-type valve seat 4 (seat portion internal diameter) φ d pro rata
2Become big similarly.Because this internal diameter φ d
2Become big, seated position with respect to the ball valve body 9 of ring-type valve seat 4 can be arranged on and link on the line that flows into tube portion 2 and each internal diameter that flows out tube portion 3 or than its side of hole enlargement more, will be under the bigbore state of straight line shape from the valve port of the first side of check valve body 1 φ d directly
1Valve port footpath φ d to second side
3Stream be communicated with and be undergauge port status (state at no undergauge position) not.
The 3a of yielding portion is near the part that bloats to the external diameter direction the bottom of the seat portion 4 of outflow tube portion 3, be set as when coming sealing ring valve seat 4 by ball valve body 9, yielding is located the come-up of the ball valve body 9 when preventing to take a seat in addition at this ball valve body 9 and the docking part of ring-type valve seat 4.By the 3a of this yielding portion is set, can keep from flowing into a side valve bore φ d
3To the valve port footpath φ d that flows out a side
1Not undergauge port status, simultaneously drop to the border with respect to will the take a seat position of portion 4 of stream, the position of the ball valve body 9 in the time of can suppressing take a seat than the lowland forms flat with check valve body 1.
At this, even with diameter phi d
9With respect to valve port footpath φ d
1(φ d
3) ratio be set at than roughly 2: 1 bigger, keep at stream under the state of undergauge port status not always, only be ball valve body 9 with respect to the minimum diameter of main body 1 be valve port footpath φ d
1(φ d
3) ratio become big, the result only is to make maximizations that become of valve integral body, it is effective to say so.
If with diameter phi d
9With valve port footpath φ d
1(φ d
3) ratio be set at roughly 2: 1, though then ball valve body 9 uprises with respect to the ratio of stream,, can realize lightweight by with the robber materials of light weight raw material as this ball valve body 9, action realizes out valve or closes the valve state reliably.
On the 5c of female thread portion of upper end open one side of guiding tube 5, loading and unloading screw the screw section 11a that lid 11 is installed freely via the sealed member 10 of O shape ring etc.Guiding tube 5 is than the diameter phi d of ball valve body 9
9More hole enlargement ground forms, and under the state that unloads lower cover 11, takes in ball valve body 9 from opening one side.As an example, in the valve of nominal diameter 50A, with respect to the bore φ 73mm of valve chamber 5a, taking in diameter is the ball valve body 9 of φ 63mm.
The 5c of female thread portion is to be formed at heavy back slightly and to have formed on the part of wall thickness of this outflow tube portion 3 flowing out tube portion 3 one sides, during with the guiding tube 5 of 45 angle tilt roughly, reduces the height of this guiding tube 5 in setting as far as possible.Thus, can make check valve body 1 form more flat shape.In addition, 11b is the lip part of the lid 11 that docks with the upper end open face of guiding tube 5, and 11c is the profile horn shape protuberance of lid 11 loading and unloading usefulness.
In the present embodiment, will flow into tube portion 2 and outflow tube portion 3 insertion inlet side rubber pipes 12 and to export pipe connection structure in the side rubber pipe 13 though adopt, this joint construction can be screwed into form or joint construction in addition for screw thread.Again, the negative and positive of each joint construction can be opposite.As valve port footpath φ d
1(φ d
3) an example, in the valve of nominal diameter 50A, φ d
1=φ d
3=φ 50mm.
Then, the effect to the ball check valve of above-mentioned mode of execution of the present invention describes.
Flow into the fluid in the inflow tube portion 2 of first side, make be seated at ring-type valve seat 4 ball valve body 9 to valve chamber 5a one side shifting and become close the valve state after, pass outflow port 6a and the outflow pathway 7 of valve chamber 5a, flow out in the outflow tube portion 3 of second side.Under the state that fluid is flowing out, ball valve body 9 is maintained the state that has the inferior limit interval with outflow port 6 by separating holding part 8.Therefore, ball valve body 9 can not blocked outflow port 6, can flow out the drag flow of established amount reliably.
As mentioned above, because separating holding part 8 is located near the position across outflow port 6 along the axis direction of guiding tube 5 (valve chamber 5a), in this example, edge portion ground near outflow port 6 is provided with, so can guarantee the moving range of the ball valve body 9 in the valve chamber 5a to greatest extent, thus, can prevent that the foreign matter in the fluid from entering between ball valve body 9 and the valve chamber 5a, and meanwhile smoothly guide ball valve body 9 make its action.Because separate holding part 8,, thus, can not produce ball valve body 9 and be sandwiched in the phenomenon that separates grade between the holding part 8 so a pair of distance that separates between the holding part diminishes near the outflow port 6 ground settings of path again.And flowing of the fluid in the check valve body 1 is extremely smooth and easy, produces the pressure loss of fluid hardly.
Under the situation about increasing in flow moment of fluid, as shown in Figure 1, ball valve body 9 moves among the valve chamber 5a that separates holding part 8 tops.Because do not having protuberance on the internal surface above the valve chamber 5a, so can making progress in the footpath in the valve chamber 5a, moves to greatest extent ball valve body 9, can prevent that the foreign matter in the fluid from entering between ball valve body 9 and the valve chamber 5a, ball valve body 9 is moved smoothly.
Again, when the drag flow of fluid stopped, ball valve body 9 moved to ring-type valve seat 4, while and the inner conical surface 4b by this ring-type valve seat 4 transfer core to take a seat thereon, so can prevent adverse current reliably, can keep the valve state that closes reliably.
Again, in above-mentioned ball check valve main body 1, make ring-type valve seat 4 with respect to flowing into tube portion 2, flowing out roughly 45 degree of tube portion 3 inclinations, and form skewed outflow port 6 along the inclination of this ring-type valve seat 4 and flow into tube portion 2, the opening part that flows out tube portion 3 is communicated with is the state of undergauge port not, so fluid is flowed, can check valve body 1 be formed flat while keeping flow, and, the bigger stream of bore can be formed.
In addition, as mentioned above, because with respect to the central shaft 1a of stream (pipe arrangement 12), the 45 degree landform that tilt roughly are valve seat 4 (and valve chamber 5) circlewise, so can install corresponding to any of vertical pipe arrangement and horizontal pipe arrangement.
Then, the drain control unit for use ball check valve of the present invention describes.
Drain control unit 30 shown in Figure 5, be set as underground, control that along continuous straight runs is configured in building etc. flow to the living drainage etc. of second side from first side the mode of draining W, the first side stream 31 that is connecting pipe etc. on rhone 32 grades that draining W flows into is connecting inflow tube portion 2 one sides of ball check valve main body 1 with inlet side rubber pipe 12 in the end of this first side stream 31 side.In outflow tube portion 3 one sides of the second side of check valve body 1, connecting the joint 34 of pump 33 by outlet side rubber pipe 13 again.Second side at pump 33 is provided with secondary side pipe 35, and then this secondary side pipe 35 is connected with not shown draining longitudinal tubule (L tubule) etc.Secondary side pipe 35 is provided with to such an extent that exceed specified altitude than the joint 34 of first side, thus and joint 34 between apply the water-head pressure of regulation, in this example, this height H is made as roughly about 100mm.Therefore, secondary side pipe 35 is in the water-head pressure that the ball valve body 9 that closes the valve state produces 100mm (0.01kgf/cm) with first side at this pump 33, be set to when pump 33 stops, can be by the draining W between this pump 33 and the ball valve body 9 with ball valve body 9 to ring-type valve seat 4 one thruster means of press seals.It is that JIS A is shaped for 48 ° that ball valve body 9 uses 60 ° of soft materials of the general hardness ratio JIS A of JIS hardness ratio, makes this soft ball valve body 9 be seated at ring-type valve seat 4 under the state being close to by this water-head pressure, thereby can prevent to produce adverse current reliably.
Drain control unit main body 30 can reduce the whole pressure loss of this device by using check valve body 1, and, make the interior ball valve body 9 of main body 1 by using soft material, though under low differential pressure also sealing ring valve seat 4 reliably.And then, by the outflow port otch is become rectangle or semicircle, can increase port shape with the own ladder of the intersection ground that flows out stream 7 from forming valve chamber 5a cylindraceous, keep the valve port footpath φ d of outlet one side reliably
1Thereby, reduce the pressure loss reliably.
Therefore, pump 33 can be selected and produce volume try one's best little motor or the little motor of outstanding pressure, drain control unit main body 30 is being configured in when underground, can reduce the work volume of generation, cost that also can the restraining device main body.
Again, drain control unit can be arranged in the inferior space that is restricted, ground, reduce outward appearance even be made as flat, compare, also can be made as bigger bore, thereby can give full play to function as drain control unit with this outward appearance.
In Fig. 6, show the 2nd mode of execution of ball check valve of the present invention.Ball check valve main body 21, it flows into tube portion 14 and is made as same diameter with flowing out tube portion 15, can not shown inlet side be exported a side line is connected in inflow tube portion 14 and the outflow tube portion 15 by inserting or be screwed into the bindiny mechanism that waits.Like this, flow into tube portion 14 and flow out tube portions 15 and inlet side and export arbitrary structure that can be set as that to flow into 14 outflow tube portions 15 of tube portion be the inserting side being connected of a side line, be inserted into side, need only and form joint construction arbitrarily according to enforcement.In this embodiment, be same diameter because flow into tube portion 14 with flowing out tube portion 15, so can use same connection rubber pipe to constitute the stream of control gear.
In Fig. 7, show the 3rd mode of execution of ball check valve of the present invention, valve port footpath φ d
4Diameter phi d with respect to the ball valve body 16 of ball check valve main body 22
16Ratio be set at less than 2: 1.In this case,, the ball check valve integral miniaturization can be made, manufacture cost can be suppressed by making ball valve body 16 miniaturizations.
In addition, in the 2nd mode of execution, the 3rd mode of execution, the position identical with the 1st mode of execution represented with same tag, omits its explanation.
(embodiment 1)
Then, implemented the real stream test of the ball check valve of the 3rd mode of execution of the present invention based on JIS B2005 (test method of the capacity coefficient of valve).In this test, flatly dispose trial target, flow to from first side at fluid under the positive stream mode of second side, measure the flow that ball valve body is blocked outflow port.
Table 1
As shown in table 1, the comparative example separate holding part is set makes ball valve body block outflow port with the flow of about 200L/min.Relative with it, along the axis direction of guiding tube (valve chamber) and be provided with on the position across outflow port in a pair of embodiment A that separates holding part, the flow that can flow through is about 1.8 times of comparative example.And then, in a pair of partition distance that separates holding part being made as Embodiment B identical with the aperture of outflow port and that be provided with near the edge portion of outflow port ground, can confirm that its flow-rate ratio embodiment A is big, compare with comparative example, guarantee to be its flow of 2 times.
Then, the outflow port of the ball check valve of the 1st mode of execution of the present invention is formed the shape of 6a, 6b, 6c respectively, the flow of these outflow port is measured.
As testing apparatus, being provided with in bottom surface one side of the pvc pipe of the upright bore 200A that establishes highly is zero reference point, from this highly is the pvc pipe that zero reference point along continuous straight runs disposes the bore 100A of specific length, and then, the pvc pipe that on the pvc pipe of this bore 100A, connects bore 50A, front end one side at this bore 50A connects the ball valve that passage opening/closing is used, front end one side at this ball valve connects as each different ball check valve of the outflow port of pet valve, makes this ball check valve be in out the valve state and measures.
When measuring, be in the interior state that retains water from reference point to height 1100mm of pvc pipe of bore 200A, the ball valve that passage opening/closing is used is in out the valve state, measures for discharge water spent time when water level is reduced to the height 900mm left and right sides.
Be that draining has roughly been spent 13 seconds under the situation of ball check valve of port shape 6b at narrow stream with flow path area minimum.Again, having the stream bigger than this flow path area is the ball check valve of port shape 6c, and draining has roughly been spent 10 seconds, compares with the situation of port shape 6b, reaches with 1.3 times speed roughly to carry out draining.And then, be that rectangle has the ball check valve that bigger stream is port shape 6a with the top one side otch of stream, can compare with the situation of port shape 6b with draining in about 8 seconds, reach with about 1.6 times speed and carry out draining.
According to the above, can confirm, establish opening portion to such an extent that be made as cylindric valve chamber with the shape of outflow port greatly and compare the top one side otch of port with the ellipse of the intersection that flows out stream itself, can carry out draining quickly.
Claims (6)
1. ball check valve, it is characterized in that, on the substantial middle position of the check valve body that constitutes by inflow tube portion and outflow tube portion, be formed with respect to above-mentioned inflow tube portion and flow out the ring-type valve seat that tube portion separates with miter angle degree roughly, the outstanding integratedly guiding tube that is formed with along the axis direction of this ring-type valve seat from check valve body, the ball valve body that moves the inside that is accommodated in this guiding tube freely is landed on the aforementioned ring-type valve seat, be formed with the outflow port of the inner end of having separated aforementioned outflow tube portion in the side of aforementioned guiding tube, on position, dispose and make the holding part that separates that aforementioned ball valve body and outflow port separate across this outflow port, and make the ring-type valve seat inflow valve port side outflow tube portion (3) thus the bottom near bloat to the external diameter direction and to form yielding portion, make the lower position of ring-type valve seat reduce by this yielding portion, make to flow into port (6) and the inflow side valve port φ d that flows into tube portion (2) side
3With the outflow side valve port φ d that flows out tube portion (3) side
1Stream be communicated with to become the fully state of rectilinear not undergauge port along path direction.
2. ball check valve as claimed in claim 1, with the upper section otch of aforementioned outflow port, making the inlet side opening that flows out tube portion is rectangular shape on the direction vertical with guiding tube.
3. ball check valve as claimed in claim 1, the diameter of aforementioned ball valve body is roughly 2: 1 with respect to inflow one side of aforementioned inflow and outflow tube portion and the diameter that flows out a side.
4. drain control unit that uses ball check valve, be that along continuous straight runs is configured in the underground of building etc., at least be provided with the first side stream, the ball check valve that is connected with end one side of this first side stream, and the pump that is connected with the second side of ball check valve, and the drain control unit that the draining of living drainage of flowing to second side from first side etc. is controlled, it is characterized in that, aforementioned ball check valve, on the substantial middle position in the main body that constitutes by inflow tube portion and outflow tube portion, be formed with the ring-type valve seats that 45 degree ground roughly separate that tilt with respect to aforementioned inflow and outflow tube portion, the outstanding integratedly guiding tube that is formed with along the axis direction of this ring-type valve seat from check valve body, the ball valve body that moves the inside that is accommodated in this guiding tube freely is landed on the aforementioned ring-type valve seat, be formed with the outflow port of the inner end of cutting apart aforementioned outflow tube portion in the side of aforementioned guiding tube, on position, dispose and make the holding part that separates that aforementioned ball valve body and outflow port separate across this outflow port, and make the ring-type valve seat inflow valve port side outflow tube portion (3) thus the bottom near bloat to the external diameter direction and to form yielding portion, make the lower position of ring-type valve seat reduce by this yielding portion, make to flow into port (6) and the inflow side valve port φ d that flows into tube portion (2) side
3With the outflow side valve port φ d that flows out tube portion (3) side
1Stream be communicated with to become the fully state of rectilinear not undergauge port along path direction.
5. the drain control unit of use ball check valve as claimed in claim 4 on the position across the outflow port of aforementioned ball check valve, disposes and makes the holding part that separates that aforementioned ball valve body and outflow port separate.
6. as the drain control unit of claim 4 or 5 described use ball check valves, with the upper section otch of the outflow port of aforementioned ball check valve, making the inlet side opening that flows out tube portion is rectangular shape on the direction vertical with guiding tube.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP304813/03 | 2003-08-28 | ||
| JP2003304813 | 2003-08-28 | ||
| JP304813/2003 | 2003-08-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1590818A CN1590818A (en) | 2005-03-09 |
| CN100394087C true CN100394087C (en) | 2008-06-11 |
Family
ID=34611390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100748644A Expired - Fee Related CN100394087C (en) | 2003-08-28 | 2004-08-30 | Check ball valve and water draining controller using valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100394087C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156725A (en) * | 2015-10-08 | 2015-12-16 | 江苏神通阀门股份有限公司 | Check valve |
| CN109252334A (en) * | 2017-07-14 | 2019-01-22 | 青岛海尔洗衣机有限公司 | A kind of drainpipe and the washing machine using it |
| CN111927986B (en) * | 2020-09-16 | 2021-12-31 | 宁波华成阀门有限公司 | Anti-backflow spherical sealing check valve and using method |
| CN111927987B (en) * | 2020-09-16 | 2022-02-01 | 宁波华成阀门有限公司 | Low-resistance special-shaped sealing check valve and using method |
| CN112096930B (en) * | 2020-09-18 | 2022-11-25 | 浙江冠霖阀门有限公司 | Straight-flow ball sealing check valve and using method thereof |
| CN112128434A (en) * | 2020-09-28 | 2020-12-25 | 杨永建 | Ball-type check valve with sensitive reaction |
| CN112128436A (en) * | 2020-09-28 | 2020-12-25 | 金博 | Spherical check valve that opens and shuts efficiently |
| CN112128435A (en) * | 2020-09-28 | 2020-12-25 | 武晓丹 | Spherical check valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211361U (en) * | 1987-11-04 | 1988-09-07 | 江伟平 | Check valve with floating ball |
| EP0708283A2 (en) * | 1994-10-19 | 1996-04-24 | Clarke, Peter | Ball check valve |
| CN2321997Y (en) * | 1998-02-18 | 1999-06-02 | 刘必汉 | Float hall type ball-shaped check valve |
| CN1256377A (en) * | 1998-12-09 | 2000-06-14 | 株式会社基茨 | Ball check valve and lifting device using the same |
| CN1329705A (en) * | 1998-07-10 | 2002-01-02 | 株式会社荏原制作所 | Ball check valve |
-
2004
- 2004-08-30 CN CNB2004100748644A patent/CN100394087C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211361U (en) * | 1987-11-04 | 1988-09-07 | 江伟平 | Check valve with floating ball |
| EP0708283A2 (en) * | 1994-10-19 | 1996-04-24 | Clarke, Peter | Ball check valve |
| CN2321997Y (en) * | 1998-02-18 | 1999-06-02 | 刘必汉 | Float hall type ball-shaped check valve |
| CN1329705A (en) * | 1998-07-10 | 2002-01-02 | 株式会社荏原制作所 | Ball check valve |
| US6510869B1 (en) * | 1998-07-10 | 2003-01-28 | Ebara Corporation | Ball check valve |
| CN1256377A (en) * | 1998-12-09 | 2000-06-14 | 株式会社基茨 | Ball check valve and lifting device using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1590818A (en) | 2005-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8033292B2 (en) | Heated humidified chamber with autofeed mechanism | |
| US5439025A (en) | Float operated fill valve | |
| ES2296937T3 (en) | CONTROL VALVE. | |
| CN100394087C (en) | Check ball valve and water draining controller using valve | |
| AU2002309232A1 (en) | Control valve | |
| JPH04228733A (en) | Valve for toilet tank | |
| US20110197976A1 (en) | Standpipe direct float valve | |
| BR112013023030B1 (en) | automatic gas purge valve | |
| US10125894B2 (en) | System for preventing reverse flow | |
| EP2971898B1 (en) | Fluid valve | |
| CN113167063B (en) | Automatic toilet cleaning device | |
| CN207805641U (en) | Adaptive bidirectional falling-proof inhales bottle | |
| JP2003268755A (en) | Automatic water supply device | |
| JP4754195B2 (en) | Ball check valve and drainage control device using the same | |
| CN101443585A (en) | Valve, container with valve and use of the valve | |
| JP4841300B2 (en) | Diaphragm valve | |
| JP7025518B2 (en) | Check valve | |
| KR101661225B1 (en) | Backflow prevention system of sewer | |
| GB1580030A (en) | Floatation devices for supporting a hose-line | |
| JP2016182540A (en) | Liquid discharge device | |
| KR200314022Y1 (en) | a tap of having double outlet | |
| JP3058182U (en) | Telescopic riser | |
| TW202221249A (en) | Negative pressure regulating device for pipeline capable of automatically introducing external air to reduce the negative pressure in the pipeline to protect the pipeline | |
| JP2022167324A (en) | drain trap | |
| JPH0569470U (en) | Water seal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20140830 |
|
| EXPY | Termination of patent right or utility model |