CN202140612U - Slow-closing type floating ball valve - Google Patents
Slow-closing type floating ball valve Download PDFInfo
- Publication number
- CN202140612U CN202140612U CN201120231288U CN201120231288U CN202140612U CN 202140612 U CN202140612 U CN 202140612U CN 201120231288 U CN201120231288 U CN 201120231288U CN 201120231288 U CN201120231288 U CN 201120231288U CN 202140612 U CN202140612 U CN 202140612U
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- ring
- valve body
- gap
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Abstract
The utility model discloses a slow-closing type floating ball valve, wherein a bracket is arranged inside the front chamber of a valve cover and the core space of the bracket us a valve chamber. A film is arranged between the rear end face of an annular boss in a valve body and the valve cover. The intermediate portion of the film deforms and extends backward so as to from a positioning boss. A retainer ring is arranged inside a cavity inside the positioning boss. The rear end of the retainer ring passes through a through hole arranged at the intermediate portion of the positioning boss and extends inside the positioning slot of the bracket. A bolt is arranged inside the inner hole of the retainer ring. A gap is arranged between the bolt and the wall of the inner hole of the retainer ring. The gap is communicated with the valve chamber through a first small hole in the bracket. A control chamber is arranged at the rear part of the valve chamber. The control chamber is communicated with the valve chamber through a second small hole in the bracket. The slow-closing type floating ball valve has the advantages of longer closing period, slower speed change of the water flow, easy machining and manufacturing, compact structure, easy assembly, reliable control, long service life and so on. Due to the adoption of the slow-closing type floating ball valve, the adverse impact of the water flow on a water supply pipe and the valve body are significantly reduced.
Description
Technical field
The utility model relates to and belongs to the water valve technical field, specifically, and particularly a kind of Slow Close formula float valve.
Background technique
Float valve is a control unit important in the water tank.Chinese patent ZL 200920206691.5 discloses a kind of inside-plugging float valve, is made up of parts such as valve body, valve gap, mangetic core assembly, epithelium, slide block, shifting block, valve rod and ball floats, closes beginning from the control hole of this valve; This valve just gets into and closes closed procedure; The through hole that comes water process epithelium center of water intake is to the valve chamber water-filling at this moment, and valve chamber hydraulic pressure increases gradually, promotes epithelium near annular boss; Till epithelium is sealed above-mentioned boss, accomplished closing of float valve.The size of epithelium central through bore size directly has influence on the length of float valve shut-in time, if the time that float valve is closed is too short, then the current that sharply diminish of speed can cause great impact to valve body and water supply line, will influence its life-span.
Can know through analyzing: the measure of taking the size appropriateness with the epithelium central through bore to reduce, can reach the shut-in time that prolongs float valve, and then the purpose that prolongs its life-span.After above-mentioned through hole is reduced, stop up for fear of it, the filter screen of micropore level also should be set separately for it.Owing to receive the restriction on manufacturing process and the product structure, directly above-mentioned inside-plugging float valve is optimized upgrading, promptly reducing the size of aforementioned epithelium central through bore and setting up filter screen is impossible realize.Therefore, how prolonging the time that float valve closes in the industry is a difficult problem that needs to be resolved hurrily.
The model utility content
The utility model technical problem to be solved is to provide a kind of shut-in time long Slow Close formula float valve.
The technological scheme of the utility model is following: a kind of Slow Close formula float valve; Comprise valve body (1), valve gap (2), epithelium (3) and ball float driving mechanism, be provided with water outlet (B) in the bottom of valve body (1), this water outlet (B) communicates with the valve pocket (C) of valve body (1); In valve pocket (C), be provided with annular boss (1a); The endoporus of annular boss (1a) communicates with the water intake (A) of valve body (1) front end, in the rear end of valve body (1) valve gap (2) is set, and its key is: the inside of said valve gap (2) is divided into former and later two chambers; Carriage (4) is housed in the front chamber of valve gap (2), and the inner chamber of this carriage (4) is valve chamber (D); The front end of said valve gap (2) is inserted in the valve body (1); Between the ear end face of the annular boss (1a) in valve body (1) and the valve gap (2) epithelium (3) is set, the edge of this epithelium (3) is compressed by the step surface in the valve body (1) and the front-end face of valve gap (2), and the middle part of said epithelium (3) is out of shape extension backward; Form positioning boss (3a); This positioning boss (3a) is positioned at valve chamber (D), and the middle part of positioning boss (3a) has via hole (3b), and the inside of said positioning boss (3a) forms the uncovered cavity of front end; Back-up ring (5) is housed in this cavity; The via hole (3b) at positioning boss (3a) middle part is passed in the rear end of said back-up ring (5), extend in the locating slot on the carriage (4), and the interior step of the step on the back-up ring (5) and carriage (4) compresses the rear end of positioning boss (3a); In the endoporus of said back-up ring (5), be equipped with bolt (6); The thread section of this bolt (6) rear end stretches into carriage (4) and goes up in the corresponding tapped hole; Have the gap between the smooth section of bolt (6) front end and the inner hole wall of back-up ring (5), this gap communicates with valve chamber (D) through first aperture (4a) on the carriage (4); At the rear of said valve chamber (D) control room (E) is set; This control room (E) communicates with valve chamber (D) through second aperture (4b) on the carriage (4); Spool (7) is housed in said control room (E); This spool (7) is connected with the front end of screw rod (8), and the control hole (2a) on the wall altogether of chamber before and after the valve gap (2) is passed in the rear end of screw rod (8), and is connected with slide block (15) on the ball float driving mechanism.
The utility model is installed in the water tank, and the water intake of valve body is connected with the intake pipe of water tank, and ball float floats on the liquid level in the water tank.When float valve is opened, leave annular boss after the front-end face distortion at epithelium middle part, water is through the endoporus of water intake and annular boss, and the overwhelming majority flows in the valve pocket, flows out through water outlet again, and few part flows to valve chamber through the endoporus and first aperture of back-up ring.When the water level in the water tank rose, ball float rose thereupon, and ball float drives the spool that is connected with screw rod through driving mechanism; Spool is moved backward, and when ball float reached designated water level, the water inlet port of control hole had been sealed in the rear end of spool; Water in the valve chamber is cumulative, and pressure increases, to the direction promotion epithelium of annular boss; Front-end face in the middle part of epithelium is adjacent to the ear end face of annular boss, and float valve is closed.
The utility model is in the process of closing; Water flows to valve chamber through the gap and first aperture between bolt smooth section and the back-up ring inner hole wall; Compare with background technique, not only increased flow process, and through setting the aperture of first aperture; Can reduce the flow of unit time, thereby reach the purpose that prolongs the shut-in time.
As preferably, the aperture of said first aperture (4a) is 0.5-0.7mm.The aperture of first aperture is too small, is difficult to processing and realizes; The aperture of first aperture is excessive, can not play to delay the purpose that valve cuts out.
In the cavity of said positioning boss (3a), be provided with filter screen (9); This filter screen (9) is a hood configuration; And be set on the back-up ring (5); Both screw-thread fit are distributed with mesh (9a) on the upstream face of said filter screen (9), and the upstream face of filter screen (9) is near the ear end face of annular boss (1a).When float valve was opened, The turbulent river crashes its way through for the annular boss rear end.Filter screen plays filtration, and the solid particle in the water is not easy to be stuck on the filter screen, and the particulate that only a few is stuck on the filter screen also can be swept away by the rush of the current, and can prevent effectively that filter screen from stopping up.
Total area of section of the mesh on the said filter screen (9) is 18-35 a times of first aperture (4a) area of section, like this can be slow relatively through the current of filter screen, stop up filter screen to avoid the particulate in the water.
On the upstream face of said filter screen (9), be formed with a raised line (9b).Raised line plays easy disassembly, holds raised line and can turn filter screen, makes it relative back-up ring rotation, and is not only convenient but also quick.
On said positioning boss (3a), be set with first spring (10), the front end of this first spring (10) and epithelium (3) butt, the rear end of first spring (10) is arranged in the annular groove on the carriage (4).The effect of first spring is: occurring under the ultralow water pressure conditions, can guarantee to have in the valve chamber water to flow into through filter screen, back-up ring endoporus and first aperture, making the float valve can normal operation; When supplying water interruption, can avoid the water storage in the water tank to pour in down a chimney into supply channel.
Periphery in said annular boss (1a) rear end is provided with earial drainage ring (11); This adjacent epithelium of earial drainage ring (11) (3); Have the space between the inner ring of said earial drainage ring (11) and the annular boss (1a), and on earial drainage ring (11), be provided with by the equally distributed water passage hole of circumference (11a).After valve was opened, the water that flows out from annular boss (1a) rear port was through two passages: 1. space between annular boss (1a) and earial drainage ring (11) inner ring; 2. the water passage hole (11a) on the earial drainage ring flows to valve pocket (C).Adopt such scheme, relatively more even, mild through the current distribution that valve body water outlet (B) flows out, be not easy in water tank, to evoke big wave.
On said spool (7), be set with second spring (12), the step surface butt on the front end of this second spring (12) and the spool (7), the rear wall butt of the rear end of second spring (12) and control room (E).According to actual conditions, need valve body be installed in water tank bottom sometimes, the ball float of bubbling through the water column is connected with valve rod through backguy, be provided with second spring after, just can solve the problem that control hole is opened, ensured the proper functioning of float valve.
In order to ensure the sealing of control hole (2a), be provided with glue stifled (13) at the ear end face of said spool (7).
Be connected firm, easy accessibility in order to make between valve body and the valve gap, between said valve body (1) and the valve gap (2) through nut (14) locking, this nut (14) and valve body (1) screw-thread fit.
The beneficial effect of the utility model is:
1, the shut-in time of float valve longer, the velocity variations of current slows down, and has significantly reduced the unfavorable impact of current to water supply line and valve body.Through actual measurement: the pass closed procedure of this valve lasted for 1.5 seconds when hydraulic pressure is 0.8Mpa, and this moment, current obviously reduced the impact that water supply line and valve body cause.
2, closing of float valve is one step completed, the bad phenomenon of when the water wave is very big in the water tank, closing repeatedly can not occur.
3, product can be dismantled fully, helps it is safeguarded.
4, the utility model removes epithelium, glue is stifled is rubber parts, and bolt, spring are beyond the metalwork, and all the other accessories all adopt engineering plastics to make.Have the manufacturing of being easy to, compact structure, assembling easily, characteristics such as control is reliable, the life-span is long.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of valve gap in the utility model.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is the structural representation of carriage in the utility model.
Fig. 5 is the right elevation of Fig. 4.
Fig. 6 is the structural representation of epithelium in the utility model.
Fig. 7 is the structural representation of filter screen in the utility model.
Fig. 8 is the left view of Fig. 7.
Fig. 9 is the structural representation of earial drainage ring in the utility model.
Figure 10 is the right elevation of Fig. 9.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Like Fig. 1-shown in Figure 10, the utility model is stifled 13 by valve body 1, valve gap 2, epithelium 3, carriage 4, back-up ring 5, bolt 6, spool 7, screw rod 8, filter screen 9, first spring 10, earial drainage ring 11, second spring 12, glue, nut 14 and ball float driving mechanism etc. constitute.The leading portion of valve body 1 is water supply connector, and the endoporus of this water supply connector is a water inlet A, is processed with screw thread on the excircle of water supply connector, so that install.Bottom in valve body 1 stage casing is provided with water outlet B, and this water outlet B communicates with the valve pocket C at valve body 1 middle part.In valve pocket C, be formed with annular boss 1a, the axis of this annular boss 1a and the dead in line of valve body 1, the endoporus of annular boss 1a is connected with water inlet A.The back segment of valve body 1 is the set section of enlarging, is inserted in the front end of valve gap 2 in this set section, and is spacing by the step surface on the valve gap 2, and the nut 14 through suit between valve body 1 and the valve gap 2 is locked, the back segment screw-thread fit of this nut 14 and valve body 1.
Like Fig. 1-shown in Figure 10, the inside of valve gap 2 is divided into former and later two chambers, is separated by step-like wall altogether between the chamber of front and back.The carriage 4 of in the front chamber of valve gap 2, packing into, the inner chamber of this carriage 4 is the uncovered valve chamber D of front end.In said valve body 1, between the ear end face of annular boss 1a and the valve gap 2 epithelium 3 is set, the edge of this epithelium 3 is compressed by the step surface in the valve body 1 and the front-end face of valve gap 2.Periphery in said annular boss 1a rear end is provided with earial drainage ring 11, and these earial drainage ring 11 adjacent epitheliums 3 have the space between the inner ring of said earial drainage ring 11 and the annular boss 1a, and on earial drainage ring 11, have by the equally distributed water passage hole 11a of circumference.The middle part of said epithelium 3 is out of shape extension backward, forms positioning boss 3a, and this positioning boss 3a is positioned at valve chamber D, and the middle part of positioning boss 3a has via hole 3b.On said positioning boss 3a, be set with first spring 10, the step butt on the front end of this first spring 10 and the epithelium 3, the rear end of first spring 10 is arranged in the annular groove on the carriage 4.The inside of said positioning boss 3a forms the uncovered cavity of front end, and back-up ring 5 and filter screen 9 are housed in this cavity.Back-up ring 5 is pre-large post-small terraced structure, and filter screen 9 is a hood configuration, and filter screen 9 is set on the enlarged diameter section of back-up ring 5, both screw-thread fit.The front-end face of said filter screen 9 is a upstream face, and this upstream face is near the ear end face of annular boss 1a, and on the upstream face of filter screen 9, is formed with a raised line 9b, also is distributed with mesh 9a on the upstream face of above-mentioned filter screen 9.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, the via hole 3b at positioning boss 3a middle part is passed in the rear end of back-up ring 5, extend in the locating slot on the carriage 4, and the interior step of the step on the back-up ring 5 and carriage 4 compresses the rear end of positioning boss 3a.In the endoporus of said back-up ring 5, be equipped with bolt 6 from front to back; The thread section of these bolt 6 rear ends exceeds the endoporus of back-up ring 5; And stretch in the tapped hole corresponding on the carriage 4; Have the gap between the smooth section of bolt 6 front ends and the inner hole wall of back-up ring 5, this gap communicates with valve chamber D through the first aperture 4a on the carriage 4.The shaft axis of the center line of the said first aperture 4a and valve gap 2 is perpendicular, and the aperture of the first aperture 4a is 0.5-0.7mm, and total area of section of the mesh on the said filter screen 9 is 18-35 a times of the first aperture 4a area of section.At the rear of said valve chamber D control room E is set, this control room E is the part of valve gap 2 front chamber, and control room E communicates with valve chamber D through the second aperture 4b on the carriage 4, and the shaft axis of the center line of the second aperture 4b and valve gap 2 parallels.
Like Fig. 1, Fig. 2, shown in Figure 3, spool 7 is housed in the E of control room, this spool 7 is connected with the front end of screw rod 8, and the rear end of screw rod 8 is passed valve gap 2 front and back chambers and is total to the control hole 2a on the wall, and has the gap between screw rod 8 and the control hole 2a.It is stifled 13 to be provided with glue at the ear end face of said spool 7, and on spool 7, is set with second spring 12, the step surface butt on the front end of this second spring 12 and the spool 7, and the rear wall of the rear end of second spring 12 and control room E connects.
As shown in Figure 1; Said ball float driving mechanism is made up of parts such as slide block 15, rotating shaft 16, shifting block 17, valve rod bolt 18, valve rod 19 and ball floats 20; Wherein slide block 15 is arranged in the rear chamber of valve gap 2, and the guide rail on slide block 15 and the valve gap 2 rear chamber's inwalls is slidingly matched.The rear end of the front end of said slide block 15 and screw rod 8 is fixed, and the rear end of slide block 15 has draw-in groove, the eave tile snap fit of this draw-in groove and shifting block 17 front ends.Said shifting block 17 is installed on the valve gap 2 through rotating shaft 16, and the rear end of this shifting block 17 through valve rod bolt 18 and valve rod 19 is connected, the fixing ball float 20 in the other end of valve rod 19.
The utility model is work like this:
1, closed condition:
Under the acting in conjunction of ball float driving mechanism, hydraulic pressure, second spring 12, the glue of spool 7 rear ends stifled 13 has been sealed the front port of control hole 2a, and epithelium 3 has been sealed the rear port of annular boss 1a under differential pressure action, and valve cuts out.
2, open and close the closed procedure (see figure 1):
When the drawdown in the water tank arrived to a certain degree, ball float 20 drove shifting blocks 17 through valve rod 19 and 16 clockwise rotates around the shaft, and the eave tile on the shifting block 17 drives slide block 15 and travels forward; Slide block 15 adds the power-assisted of second spring 12 through screw rod 8, makes spool 7 overcome the hydraulic pressure resistance and moves forward, and glue stifled 13 leaves the front port of control hole 2a; Water in the valve chamber D flows out from the rear chamber of valve gap 2 through the second aperture 4b, control room E, control hole 2a, and hydraulic pressure reduces; Under differential pressure action; Leave the ear end face of annular boss 1a after the front-end face distortion at epithelium 3 middle parts, valve is opened, and water is through the endoporus of water inlet A and annular boss 1a; The overwhelming majority flows among the valve pocket C through the space of the water passage hole 11a on the earial drainage ring 11 and earial drainage ring 11 and annular boss 1a; Flow out through water outlet B, few part flows to valve chamber D through the endoporus and the first aperture 4a of back-up ring 5 again.
When the water level in the water tank rose, ball float 20 rose thereupon, and ball float 20 drives the spool 7 that is connected with screw rod through driving mechanism; Spool 7 is moved backward, and when ball float 20 reached designated water level, the glue of spool 7 rear ends stifled 13 had been sealed the front port of control hole 2a; Water in the valve chamber D is cumulative, and pressure increases, to the direction promotion epithelium 3 of annular boss 1a; Be adjacent to the ear end face of annular boss 1a until the front-end face at epithelium 3 middle parts, float valve is closed.
Claims (10)
1. Slow Close formula float valve; Comprise valve body (1), valve gap (2), epithelium (3) and ball float driving mechanism, be provided with water outlet (B) in the bottom of valve body (1), this water outlet (B) communicates with the valve pocket (C) of valve body (1); In valve pocket (C), be provided with annular boss (1a); The endoporus of annular boss (1a) communicates with the water intake (A) of valve body (1) front end, in the rear end of valve body (1) valve gap (2) is set, and it is characterized in that: the inside of said valve gap (2) is divided into former and later two chambers; Carriage (4) is housed in the front chamber of valve gap (2), and the inner chamber of this carriage (4) is valve chamber (D); The front end of said valve gap (2) is inserted in the valve body (1); In valve body (1), between the ear end face of annular boss (1a) and the valve gap (2) epithelium (3) is set, the edge of this epithelium (3) is compressed by the step surface in the valve body (1) and the front-end face of valve gap (2), and the middle part of said epithelium (3) is out of shape extension backward; Form positioning boss (3a); This positioning boss (3a) is positioned at valve chamber (D), and the middle part of positioning boss (3a) has via hole (3b), and the inside of said positioning boss (3a) forms the uncovered cavity of front end; Back-up ring (5) is housed in this cavity; The via hole (3b) at positioning boss (3a) middle part is passed in the rear end of said back-up ring (5), extend in the locating slot on the carriage (4), and the interior step of the step on the back-up ring (5) and carriage (4) compresses the rear end of positioning boss (3a); In the endoporus of said back-up ring (5), be equipped with bolt (6); The thread section of this bolt (6) rear end stretches into carriage (4) and goes up in the corresponding tapped hole; Have the gap between the smooth section of bolt (6) front end and the inner hole wall of back-up ring (5), this gap communicates with valve chamber (D) through first aperture (4a) on the carriage (4); At the rear of said valve chamber (D) control room (E) is set; This control room (E) communicates with valve chamber (D) through second aperture (4b) on the carriage (4); Spool (7) is housed in said control room (E); This spool (7) is connected with the front end of screw rod (8), and the control hole (2a) on the wall altogether of chamber before and after the valve gap (2) is passed in the rear end of screw rod (8), and is connected with slide block (15) on the ball float driving mechanism.
2. Slow Close formula float valve according to claim 1 is characterized in that: the aperture of said first aperture (4a) is 0.5-0.7mm.
3. Slow Close formula float valve according to claim 1 and 2; It is characterized in that: in the cavity of said positioning boss (3a), be provided with filter screen (9); This filter screen (9) is a hood configuration, and is set on the back-up ring (5) both screw-thread fit; On the upstream face of said filter screen (9), be distributed with mesh (9a), and the upstream face of filter screen (9) is near the ear end face of annular boss (1a).
4. Slow Close formula float valve according to claim 3 is characterized in that: total area of section of the mesh on the said filter screen (9) is 18-35 a times of first aperture (4a) area of section.
5. Slow Close formula float valve according to claim 4 is characterized in that: on the upstream face of said filter screen (9), be formed with a raised line (9b).
6. according to claim 1 or 2 or 4 or 5 described Slow Close formula float valves; It is characterized in that: on said positioning boss (3a), be set with first spring (10); The front end of this first spring (10) and epithelium (3) butt, the rear end of first spring (10) is arranged in the annular groove on the carriage (4).
7. Slow Close formula float valve according to claim 1; It is characterized in that: the periphery in said annular boss (1a) rear end is provided with earial drainage ring (11); This adjacent epithelium of earial drainage ring (11) (3); Have the space between the inner ring of said earial drainage ring (11) and the annular boss (1a), and on earial drainage ring (11), be provided with by the equally distributed water passage hole of circumference (11a).
8. Slow Close formula float valve according to claim 1; It is characterized in that: on said spool (7), be set with second spring (12); Step surface butt on the front end of this second spring (12) and the spool (7), the rear wall butt of the rear end of second spring (12) and control room (E).
9. according to claim 1 or 8 described Slow Close formula float valves, it is characterized in that: the ear end face at said spool (7) is provided with glue stifled (13).
10. Slow Close formula float valve according to claim 1 is characterized in that: lock this nut (14) and valve body (1) screw-thread fit between said valve body (1) and the valve gap (2) through nut (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120231288U CN202140612U (en) | 2011-07-04 | 2011-07-04 | Slow-closing type floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120231288U CN202140612U (en) | 2011-07-04 | 2011-07-04 | Slow-closing type floating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140612U true CN202140612U (en) | 2012-02-08 |
Family
ID=45551670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120231288U Expired - Lifetime CN202140612U (en) | 2011-07-04 | 2011-07-04 | Slow-closing type floating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384284A (en) * | 2011-07-04 | 2012-03-21 | 卢忠伦 | Slow-closing type float ball valve |
-
2011
- 2011-07-04 CN CN201120231288U patent/CN202140612U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384284A (en) * | 2011-07-04 | 2012-03-21 | 卢忠伦 | Slow-closing type float ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120208 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |