CN2828473Y - Plunger valve with sealing assembly - Google Patents
Plunger valve with sealing assembly Download PDFInfo
- Publication number
- CN2828473Y CN2828473Y CN 200520097790 CN200520097790U CN2828473Y CN 2828473 Y CN2828473 Y CN 2828473Y CN 200520097790 CN200520097790 CN 200520097790 CN 200520097790 U CN200520097790 U CN 200520097790U CN 2828473 Y CN2828473 Y CN 2828473Y
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- CN
- China
- Prior art keywords
- valve
- plunger
- seal
- gap
- black box
- 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
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Abstract
The utility model discloses a plunger valve with sealing assemblies, which comprises a valve body, a valve cap, a plunger, a handwheel of a valve rod, an upper sealing assembly, a lower sealing assembly, a bracket, a valve rod cover and a fastening bolt, wherein the upper sealing assembly and the lower sealing assembly are sheathed on the plunger. The utility model is characterized in that the interior of the sealing assemblies is formed by overlapping sealing rings; the valve rod cover is arranged in a central hole in the upper part of the valve body and is locked in the central hole in the upper end of the valve cap by the fastening bolt. The utility model has the advantages of simple structure, convenient operation, good sealing performance, convenient replacement and repair, long service life, etc.
Description
Affiliated technical field
The utility model relates to a kind of valve, specifically a kind of plunger valve.
Background technique
The general employing firmly of existing plunger valve seals, and the evaporating, emitting, dripping or leaking of liquid or gas phenomenon in use takes place easily.Its reason is that sealing is not tight between plunger and the Sealing, or uses wearing and tearing to produce the gap and cause interior leakage, thereby has influenced the working life of plunger valve.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned deficiency that a kind of compressive strength height is provided, and is high temperature resistant, corrosion-resistant, the adjustable black box plunger valve of long service life.
The technological scheme that its technical problem that solves the utility model adopts is: it flows to by having, outlet passage and hold the valve body of open-shut device valve pocket, cover the valve gap on valve body, be contained in upper-lower seal coil assembly, support, plunger between valve body chamber and the valve gap successively, pass the valve rod of valve gap and be connected the handwheel of valve stem tip valve gap outside, the valve stem casing that valve gap upper end endoporus is installed, lock bolt is formed.Last bottom flange and valve body connect together with bolt, nut, the lower end of valve gap is pressed on the combination seal coil assembly, by stent support between the upper-lower seal coil assembly, plunger is being done upper and lower keying lifting in the upper-lower seal circle under the effect of external force, the seal degree between valve body and seal ring, plunger and the seal ring is regulated by bolt, nut.It is characterized in that: the last black box, lower seal assembly and the intermediate support that are sleeved on the plunger are located in the cavity of valve body, with screw rod (7), nut (6) valve body and valve gap are combined as a whole, the seal degree between plunger and the seal ring is regulated by bolt, nut; The upper end endoporus of valve gap is equipped with valve stem casing, is provided with screw thread at the valve stem casing endoporus, and the valve rod of band screw thread is contained in the valve stem casing; In the valve gap upper end portion screw is arranged, have lock bolt valve stem casing to be locked in the hole of valve gap upper end on screw is interior; The seal ring assembly that is sleeved on the plunger is to form by the several sealed circle body is overlapping: going up the top of seal ring is the plane, and the bottom is interior triangle open mouth; The top of intermediate seal circle is triangle, and the bottom is interior triangle; Lower seal top is triangle, is a plane below.Triangle open mouth contacts with the top triangle drift angle face of the seal ring of centre in last seal ring following, and the triangular groove of intermediate seal circle bottom drops on the triangle convex surface on the lower seal, the upper, middle and lower seal ring composition black box that overlaps.During use, can select suitable circle body thickness and material according to the size and the purposes of plunger diameter and valve pocket.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the sectional view of black box;
Fig. 3 is the sectional view of valve stem casing.
1. handwheels among the figure, 2. lock bolt, 3. valve stem casing, 4. valve rod, 5. valve gap, 6. nut, 7. screw rod, seal ring on 8,13., 9,14. intermediate seal circles, 10,15. lower seal, 11. valve bodies, 12. little flowing hole, 16. big flowing holes, 17. plungers, 18. supports, 19. locating slots.
Embodiment
As shown in Figure 1, the utility model black box plunger valve comprises valve body (11), valve gap (5), is installed in the plunger that is connected with valve rod (17), valve stem casing (3), lock bolt (2), bolt (7), nut (6), last seal ring assembly, lower seal assembly parts such as (two assembly ring structures are identical) in the bonnet central bore.The structure of valve body (11) and common plunger valve are basic identical.One valve stem casing (3) is installed in the upper end portion center hole of valve gap (5).Its effect be when overcoming valve rod (4) turn and on the valve gap hole directly wearing and tearing cause valve gap to scrap; After valve stem casing or stem wear evil idea, promptly replaceable new valve stem casing or valve rod are saved product cost.Establish 1-3 screw in the valve gap upper end portion, the lock bolt of band cap is contained in the screw, after the valve stem casing installing and locating, bolt (2) withstood in the locating slot (19) on the valve stem casing tightens, and valve stem casing is fixed in the hole of valve gap upper end; Plunger (17) top and the bottom are set with black box and [go up black box by seal ring: (8), (9), (10) form, the lower seal assembly is by seal ring: (13), (14), (15) form], support (18) is equipped with in the centre, valve gap (5) and valve body (11) screw rod (7), nut (6) connects, leave the gap between valve gap and the valve body, by screw rod (7), nut (6) is regulated the gap between valve gap and the valve body, dwindling between valve body and the valve gap in the gap, exert pressure to support black box up and down in the valve gap bottom surface, seal ring assembly extending transversely after making it stressed is regulated the degree of holding tightly of upper-lower seal circle and plunger and valve body cavity wall, makes plunger valve keep sealing.
As shown in Figure 2, seal ring assembly is to form by the several sealed circle body is overlapping, the top of last seal ring is the plane, be interior triangle below, its a angle is 100 degree angles, the top of middle seal ring is triangle, the bottom is interior triangle, angle, the two bases drift angle that two points that intersect on leg-of-mutton two hypotenuses in top and base form is downwards respectively 2 vertical side, and intersect at 2 vertical side and angle, interior triangle base, and the seal ring in the middle of making forms a Λ type, the last leg-of-mutton both sides of intermediate seal circle form angle b, the b angle is 115 degree, and the interior triangle c angle of intermediate seal circle is 100 degree angles, and the last drift angle d of lower seal is 115 degree.At last seal ring, the circle body at the top, angle of the interior triangle of intermediate seal circle is provided with groove, the a angle that forms the sealing circle body is less than the b angle on the intermediate seal circle body, c angle on the intermediate seal circle body is less than the d angle on the last sealing circle body, because the upper-lower seal assembly has elasticity, when tightening screw rod, nut makes valve gap when seal ring is exerted pressure, the upper-lower seal assembly is understood at the radially appropriate degree of holding tightly that regulate the upper-lower seal circle that stretches after stressed, thereby it is adjacent on plunger (17) sidewall and valve body cavity wall, make plunger valve remain sealing state, and increase along with pressure between seal ring and the plunger, produce self-tightening, reach good sealing effect.
The utility model is simple in structure, and is easy to operate, good seal performance, and be 4-5 times of common plunger valve working life, overhauls, changes advantages such as convenient.
Claims (3)
1. black box plunger valve, [go up black box by seal ring: (8), (9), (10) are formed by upper-lower seal assembly on plunger (17) of valve body (11), valve gap (5), plunger (17), encapsulation, the lower seal assembly is made up of seal ring (13), (14), (15)], support (18), pass the valve rod (4) of valve gap (5), valve stem casing (3), lock bolt (2) in the handwheel (1) of valve rod (4) outer end, valve gap (5) the upper end center hole; The screw rod (7) and the nut (6) that connect valve body, valve gap constitute, it is characterized in that: the plunger (17) that is installed in valve body (11) cavity is gone up nested rack (18), upper-lower seal assembly, and the valve stem casing (3) that is contained in the center hole of valve gap upper end is fixing by lock bolt (2).
2. a kind of black box plunger valve according to claim 1, it is characterized in that: black box is formed by seal ring is overlapping, on seal a angle on the circle body less than the b angle on the intermediate seal circle body, c angle on the intermediate seal circle body less than the d angle on the lower seal circle body.
3. a kind of black box plunger valve according to claim 1 is characterized in that: valve stem casing (3) endoporus that is installed in the center hole of valve gap (5) upper end is provided with screw thread, will be provided with on the valve rod of screw thread in valve stem casing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097790 CN2828473Y (en) | 2005-08-23 | 2005-08-23 | Plunger valve with sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097790 CN2828473Y (en) | 2005-08-23 | 2005-08-23 | Plunger valve with sealing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828473Y true CN2828473Y (en) | 2006-10-18 |
Family
ID=37080029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520097790 Expired - Fee Related CN2828473Y (en) | 2005-08-23 | 2005-08-23 | Plunger valve with sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828473Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330821A (en) * | 2011-07-18 | 2012-01-25 | 江苏常盛管业有限公司 | Water-saving irrigation valve |
| CN105134192A (en) * | 2015-08-23 | 2015-12-09 | 邱万成 | Electronically controlled formation test method and formation tester used by same |
| CN112728146A (en) * | 2020-12-28 | 2021-04-30 | 江苏联新阀门有限公司 | Electric rotary regulating valve |
-
2005
- 2005-08-23 CN CN 200520097790 patent/CN2828473Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330821A (en) * | 2011-07-18 | 2012-01-25 | 江苏常盛管业有限公司 | Water-saving irrigation valve |
| CN105134192A (en) * | 2015-08-23 | 2015-12-09 | 邱万成 | Electronically controlled formation test method and formation tester used by same |
| CN105134192B (en) * | 2015-08-23 | 2018-12-21 | 邱万成 | A kind of automatically controlled formation tester |
| CN112728146A (en) * | 2020-12-28 | 2021-04-30 | 江苏联新阀门有限公司 | Electric rotary regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |