CN201582427U - Pressure reduction type ball valve - Google Patents
Pressure reduction type ball valve Download PDFInfo
- Publication number
- CN201582427U CN201582427U CN2009202155707U CN200920215570U CN201582427U CN 201582427 U CN201582427 U CN 201582427U CN 2009202155707 U CN2009202155707 U CN 2009202155707U CN 200920215570 U CN200920215570 U CN 200920215570U CN 201582427 U CN201582427 U CN 201582427U
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- valve
- spool
- decompression
- valve body
- type ball
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Abstract
The utility model provides a pressure reduction type ball valve, which belongs to the technical field of valves and resolves problems that the existing ball valve is poor in pressure reduction effect and has a relatively complicated pressure reduction structure. The pressure reduction type ball valve comprises a valve body, a valve stem and a spherical valve spool, the valve spool is located inside the valve body, a through hole is arranged inside the valve spool, the valve stem penetrates through the valve body, the inner end of the valve stem is connected with the valve spool while the outer end thereof extends out of the valve body, a pressure reduction part is fixedly connected into the through hole of the valve spool, and a water-through clearance is disposed between the pressure reduction part and the inner wall of the through hole. The pressure reduction type ball valve has the advantages of simple structure, fine pressure reduction effect and automatic pressure reduction functions.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of ball valve, particularly a kind of reduced pressure type ball valve.
Background technique
Ball valve was come out the 1950's, along with the develop rapidly of science and technology, production technology and product structure update, in the 50 short years, having developed rapidly becomes a kind of main valve class.Ball valve is mainly used to make cut-out, distributes and change medium in pipeline flow direction, there is a passage ball valve core inside, and in the effect lower valve core rotation of valve rod, when forwarding certain position to, ball valve is helped open mode; When turning to another position, ball valve becomes closed condition.But in use because excessive through the hydraulic pressure or the oil pressure of valve body, it is too urgent to cause flowing into the ducted current that are connected with valve body, easily connecting tube is caused damage for common ball valve; Current are too urgent, and the water slug of flowing out from pipeline is bigger, cause that The water splash in all directions, influence people's life.
In order to solve the problem of above-mentioned appearance, at existing tap valve body place water knockout drum is housed, the water knockout drum at tap valve body place utilizes the pressure of water to realize dividing water, being equipped with at the center of the inner separating stand of the water knockout drum at tap valve body place can axially movable pull bar, be fixed with Sealing on this pull bar and divide the water intake of the runner of water to carry out opening and closing to two needs of water discharge of water faucet end, thereby realize dividing water function along with pull bar moves axially.Divide the effective of water function for making under the reliable especially low pressure of branch water function, Sealing needs certain pressure-bearing cross section to guarantee under the low pressure enough sealing loads being arranged.When high hydraulic pressure, because the positive pressure power of water can increase and corresponding increase realizes dividing water function with hydraulic pressure, but user's steering force is poly-thereupon to be increased, when serious even cause operating difficulties.
For this reason, people have proposed various solutions through long-term exploration, and some has also applied for patent.For example, Chinese patent discloses a kind of integral relief valve group [notice of authorization number: CN2419437Y], comprises the reduction valve and the bypass valve that are shaped to one; Reduction valve has inside and is provided with the reduction valve body that it is divided into the gate of forward and backward empty chamber; Bypass valve comprises that two ends are provided with the bypass valve body of internal thread, are provided with the ball valve and the trimmer valve check valve of T shape penetration hole; The bypass valve body for inner be provided with its be divided into ccontaining ball valve and buffering check valve forward and backward empty chamber gate run through tube, its top, forward and backward empty chamber is provided with the perforation with the reduction valve conducting.
This reduction valve group has solved the situation of said structure operating difficulties, and has the advantage that installation, maintenance, maintenance are convenient rapidly, usability is good.But this reduction valve group mainly exists with shortcoming: 1, its complex structure, and should not be commonly used 2, can not reach the effect of decompression automatically, need manually-operable in the using process, increased the loaded down with trivial details of operation; 3, working stability is low, manufacture cost is high.
Summary of the invention
The purpose of this utility model is at existing in prior technology the problems referred to above, and a kind of reduced pressure type ball valve of simple in structure, the branch water of realizing automatically reducing pressure is provided.
The purpose of this utility model can realize by following technical proposal: a kind of reduced pressure type ball valve, comprise valve body, valve rod and spherical spool, spool is in the valve body, have a through hole in the spool, valve rod passes valve body, and its inner links to each other with spool, valve body is stretched out in its outer end, it is characterized in that, be fixed with a decompression part in the through hole of described spool, have the gap of water flowing between this decompression part and the described through-hole wall.
In this reduced pressure type ball valve when assembling, install to valve rod on the valve body and valve rod passes valve body with pliers, and valve rod should be axially vertical with valve body during the assembling valve rod; Spool is encased in the valve body, valve rod the inner is linked to each other with spool, when packing spool into, have the decompression part in the spool.This reduced pressure type ball valve, when spool and valve body at an angle the time, current enter into the other end of valve body by valve core through hole and flow out to outside the valve body, and the part that reduces pressure this moment can cushion the hydraulic pressure size, and the water flow pressure that flows through in the valve body is diminished; The twisting valve rod, when spool rotated closed condition together along with valve rod, spool had stoped the process of current, and the part that reduces pressure this moment does not have decompression and non-return effect.The decompression part is arranged in the spool, can effectively save valve space, and layout is more reasonable.
In above-mentioned reduced pressure type ball valve, be provided with a decompression seat cylindraceous in the through hole of described spool, this decompression seat contacts with described through hole sealing, and above-mentioned decompression part is fixed in the decompression seat.
The purpose of She Zhiing is like this, and decompression seat plays a part to support to the decompression part and be fixing, and convenient decompression part can be stablized and is arranged in the valve core through hole.This decompression seat is cylindric, decompression seat outer wall is close to mutually with the valve core through hole wall when installing in the spool, make the decompression seat can in spool, not come off, can guarantee that like this current can effectively reach decompression and non-return effect fully through the water flowing gap between decompression part and the through-hole wall.
In above-mentioned reduced pressure type ball valve, be provided with seal ring between described decompression seat and the spool, seal ring is socketed in outside the decompression seat.
The seal ring here can be the O RunddichtringO, the purpose of She Zhiing is like this, guaranteed the sealing between decompression seat and the spool, seal ring is placed in decompression seat outer wall, difficult drop-off and simple in structure, easy to process, and increased the friction of reducing pressure between seat and the spool, further make the decompression seat can in spool, not come off, can guarantee that like this current can effectively reach decompression and non-return effect fully through the water flowing gap between decompression part and the through-hole wall.
In above-mentioned reduced pressure type ball valve, described decompression part is in the form of annular discs, and has some supporting bars on its limit, and the outer end of these supporting bars is connected with above-mentioned decompression seat.
The supporting bar of decompression on the part evenly is provided with and has two at least, the stability of the part that can guarantee like this to reduce pressure.When current passed through to reduce pressure seat, decompression part and supporting bar along decompression circumferential a rotation, changed flow path together, reach the effect of decompression; On the other hand, this decompression part can also be non-return.
In above-mentioned reduced pressure type ball valve, be provided with a pole in the described decompression seat, this pole is connected with the decompression seat.
The purpose of She Zhiing is like this, the packing into and take out of convenient decompression seat.Concrete, with tweezers pole to be clamped, the seat that will reduce pressure is sent in the spool and goes; Perhaps with tweezers pole is clamped, the seat that will reduce pressure takes out from spool.Pole for decompression seat packing into and taking-up is provided convenience, itself simple in structure, effect does not exert an influence to the decompression part.
In above-mentioned reduced pressure type ball valve, the sidepiece of described valve body has a valve opening over against the position of valve core through hole, is provided with a valve gap in the valve opening, and described valve gap is connected with valve seal by screw thread.
The purpose that valve opening is set is, do not need decompression seat is encased in the spool earlier when the decompression seat is installed, and is encased in the spool that is encased in the valve body but can be directly will reduce pressure by valve opening, refills valve gap and screws, and this operating procedure is simple.Moreover, after the decompression seat damages, do not need spool is split out, can directly reduction valve be taken out and keep in repair and change by valve opening, save the operating time, improved working efficiency.Valve gap is connected by thread seal with valve body, the phenomenon of seepage can not occur.This simple in structure, process also more conveniently, can improve greatly decompression seat maintenance and the efficient changed.
In above-mentioned reduced pressure type ball valve, the outer end of described valve rod has a groove.
Common valve rod outer end generally all is connected with handle, causes the volume of whole valve to become big like this, takies than large space after the installation.And the purpose that groove is set in the valve rod outer end is, reduces the use of valve handle, has replaced handle with other instruments, and is convenient and practical, and operation is very simple.
Compared with prior art, this reduced pressure type ball valve has the following advantages:
1, overall structure is simple, compact, be easy to current are reduced pressure with non-return, and decompression and non-return effective.
2, working stability height, the decompression part is difficult for being damaged, and it is convenient that decompression part and decompression seat are changed, and be easy to manufacturing, and working life is longer.
3, need not each valve and all be equipped with handle, save processing cost, and convenient and practical, applied widely.
Description of drawings
The exploded perspective view of the reduced pressure type ball valve that Fig. 1 provides for the utility model.
Fig. 2 is the exploded perspective view of decompression seat with the decompression part.
Fig. 3 is the sectional view of decompression seat with the decompression part.
Among the figure, 1, valve body; 11, valve opening; 2, valve rod; 21, groove 22, annular groove 3, spool; 31, through hole; 4, decompression part; 41, supporting bar 5, decompression seat; 51, pole; 6, seal ring; 7, valve gap; 8, bonnet; 9, valve seat.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this reduced pressure type ball valve, comprise valve body 1 and with the bonnet 8 of valve body 1 by being threaded, in valve body 1, be provided with spool 3 with through hole 31, in valve body 1 and bonnet 8, be respectively equipped with 9, two valve seats of valve seat 9 and lean, play a part spacing spool 3 with spool 3.Pass in the valve body 1 and be provided with a valve rod 2, an end of valve rod 2 stretches out outside the valve body 1, and the other end of valve rod 2 is connected with spool 3.On valve rod 2, be provided with two annular grooves 22, in annular groove 22, be respectively equipped with O RunddichtringO 6, can improve the sealing between valve rod 2 and the valve body 1 like this.Stretch out at valve rod 2 on the end of valve body 1 and offer groove 21, opener is inserted in the groove 21 valve body 1 is carried out opening and closing.
Sidepiece at valve body 1 offers valve opening 11, and this valve opening 11 is provided with a valve gap 7 over against the position of spool 3 through holes 31 in valve opening 11 positions, and valve gap 7 is connected with valve body 1 by screw thread, and both joints are provided with O RunddichtringO 6.
As shown in Figures 2 and 3, in spool 3 through holes 31, be provided with a decompression seat 5 cylindraceous, this decompression seat 5 contacts with through hole 31 sealings, be with an O RunddichtringO 6 in decompression seat 5 outsides, when decompression seat 5 contact with through hole 31, the interior outer side surface of O RunddichtringO 6 be resisted against respectively reduce pressure 5 and through hole 31 on.Through hole 31 internal fixation at valve seat 9 have decompression part 4 in the form of annular discs, have the gap of water flowing between this decompression part 4 and through hole 31 inwalls, have 4 supporting bars 41 of even setting on the limit of decompression part 4, and the outer end of these supporting bars 41 is connected with decompression seat 5.In decompression seat 5, be fixed with a pole 51, like this setting can be conveniently to the installation and removal of decompression 5.When ball valve was in closed condition, the pole 51 that is connected in the decompression seat 5 was in the end that decompression seat 5 points to valve gap 7.
In this reduced pressure type ball valve when work,, decompression part 4 is rotating in decompression seat 5 under the effect of hydraulic pressure, and the active force of hydraulic pressure is changed into the steering force of the part 4 that reduces pressure, and can effectively reduce pressure to hydraulic pressure.
This reduced pressure type ball valve is respectively charged into two valve seats 9 in valve body 1 and the bonnet 8 earlier when assembling, with pliers valve rod 2 is encased in the valve body 1 then, and this moment, valve rod 2 one ends stretched out valve body 1; After valve rod 2 installs, spool 3 is encased in the valve body 1, gently spool 3 is beaten with plastic rod simultaneously and put in place; After spool 3 installed, the screw thread that bonnet 8 is provided with applied glue, and then bonnet 8 was screwed onto on the valve body 1, and two valve seats 9 were put well with spool 3 and leant this moment, prevented coming off of spool 3.Ball valve is in closed condition, decompression seat 5 valve openings 11 from valve body 1 are encased in the spool 3, pack the end that decompression seat 5 has decompression part 4 into this moment as the inner, and pole 51 is left in the outer end, the installation and removal of convenient decompression seat 5.At last valve gap 7 is screwed in valve body 1 valve opening, 11 places and is tightly connected with valve body 1.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as valve body 1, valve opening 11, valve rod 2, groove 21, annular groove 22, spool 3, through hole 31, decompression part 4, supporting bar 41, decompression seat 5, pole 51, seal ring 6, valve gap 7, bonnet 8, valve seat 9 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1. reduced pressure type ball valve, comprise valve body (1), valve rod (2) and spherical spool (3), spool (3) is in the valve body (1), have a through hole (31) in the spool (3), valve rod (2) passes valve body (1), and its inner links to each other with spool (3), valve body (1) is stretched out in its outer end, it is characterized in that, be fixed with a decompression part (4) in the through hole (31) of described spool (3), have the gap of water flowing between this decompression part (4) and described through hole (31) inwall.
2. reduced pressure type ball valve according to claim 1, it is characterized in that, be provided with a decompression seat cylindraceous (5) in the through hole (31) of described spool (3), this decompression seat (5) contacts with described through hole (31) sealing, and above-mentioned decompression part (4) is fixed in the decompression seat (5).
3. reduced pressure type ball valve according to claim 2 is characterized in that, is provided with seal ring (6) between described decompression seat (5) and the spool (3), and seal ring (6) is socketed in outside the decompression seat (5).
4. according to claim 2 or 3 described reduced pressure type ball valves, it is characterized in that described decompression part (4) is in the form of annular discs, and have some supporting bars (41) on its limit that the outer end of these supporting bars (41) is connected with above-mentioned decompression seat (5).
5. according to claim 2 or 3 described reduced pressure type ball valves, it is characterized in that, be provided with a pole (51) in the described decompression seat (5), this pole (51) is connected with decompression seat (5).
6. reduced pressure type ball valve according to claim 1, it is characterized in that, the sidepiece of described valve body (1) has a valve opening (11) over against the position of spool (3) through hole (31), is provided with a valve gap (7) in the valve opening (11), and described valve gap (7) is tightly connected by screw thread and valve body (1).
7. reduced pressure type ball valve according to claim 1 is characterized in that, the outer end of described valve rod (2) has a groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202155707U CN201582427U (en) | 2009-12-31 | 2009-12-31 | Pressure reduction type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202155707U CN201582427U (en) | 2009-12-31 | 2009-12-31 | Pressure reduction type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582427U true CN201582427U (en) | 2010-09-15 |
Family
ID=42724425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202155707U Expired - Lifetime CN201582427U (en) | 2009-12-31 | 2009-12-31 | Pressure reduction type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718352B (en) * | 2009-12-31 | 2011-11-16 | 台州高标机械有限公司 | Reduced pressure type ball valve |
-
2009
- 2009-12-31 CN CN2009202155707U patent/CN201582427U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718352B (en) * | 2009-12-31 | 2011-11-16 | 台州高标机械有限公司 | Reduced pressure type 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: 20100915 Effective date of abandoning: 20091231 |