CN214789110U - Low cage valve body that leaks - Google Patents
Low cage valve body that leaks Download PDFInfo
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- CN214789110U CN214789110U CN202121241465.8U CN202121241465U CN214789110U CN 214789110 U CN214789110 U CN 214789110U CN 202121241465 U CN202121241465 U CN 202121241465U CN 214789110 U CN214789110 U CN 214789110U
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Abstract
The utility model belongs to the technical field of fluid control, in particular to a low-leakage cage type valve body, which comprises a valve body, a lower sleeve is arranged on the inner side of the valve body, a middle sleeve is arranged above the lower sleeve, an upper sleeve is arranged above the middle sleeve, a lower sleeve valve seat is arranged between the lower sleeve and the middle sleeve, a combined sealing ring is arranged between the middle sleeve and the upper sleeve, the inner side of the middle sleeve is provided with a valve plug, the valve plug is provided with a valve rod, the outer side of the valve rod is provided with a valve cover, the valve cover is arranged on the top of the valve body, the lower sleeve valve seat is provided with an upper groove, the lower sleeve valve seat is provided with a lower groove, lower sleeve disk seat is sixty degrees with the sealed contact angle of valve plug, the utility model provides a current valve plug and sleeve damage, just need change whole valve plug and sleeve, the problem of the requirement of unable arrival high seal in extravagant material, the sealed effect.
Description
Technical Field
The utility model belongs to the technical field of fluid control, concretely relates to low cage valve body that leaks.
Background
The control valve is widely applied to various industries as an execution unit of an automatic control system, and the requirement on the control valve is higher and higher along with the high-speed development of industrial automation. The common cage type control valve is suitable for cleaning medium control occasions with large pressure difference, low noise, cavitation erosion and low leakage requirements. When the leakage requirement is higher, the common cage type control valve can not meet the use requirement and can not reach the standard in the leakage-proof grade.
The Chinese patent with the application number of CN201821001806.2 discloses a low-leakage cage type regulating valve with a triple combined type sealing structure, which comprises a valve body, a core bar assembly, a cage, a valve cover and a packing assembly, wherein the cage is arranged in the valve body, two sides of the bottom of the cage are respectively provided with a winding gasket, the top of the winding gasket is connected with the cage, and the bottom of the winding gasket is connected with the valve body; the valve comprises a valve body, a valve rod assembly, a valve rod, a sealing gasket and a valve core, wherein the valve rod assembly is arranged in the valve body and comprises a valve rod and a valve core, symmetrical sealing ring assemblies are arranged on two sides of the valve core and comprise a sealing ring, a sealing gasket a and a sealing gasket b, and the sealing ring is positioned between the sealing gasket a and the sealing gasket b and forms a triple combined sealing structure with the sealing gasket a and the sealing gasket b; and the upper end of the valve cover is provided with a packing assembly. The utility model discloses an overcome the defect that current cage governing valve let out leakage quantity great, short-lived, satisfied market demand.
However, only one of the above prior art valve cages, especially in the cage valve body, is easily damaged by the impact of the fluid on the valve plug and the sleeve for a long time, and once the valve plug and the sleeve are damaged, the whole valve plug and the whole sleeve need to be replaced, which wastes materials and cannot meet the requirement of high sealing effect.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned weak point that exists among the prior art, the utility model provides a low cage valve body that leaks for solve current valve plug and sleeve and damage, just need change whole valve plug and sleeve, the problem of the unable sealed requirement of reacing height in extravagant material, the sealed effect.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a low cage valve body that leaks, includes the valve body, the valve body inboard is equipped with down the sleeve, sleeve top is equipped with well sleeve down, well sleeve top is equipped with the sleeve, be equipped with down the sleeve disk seat down between sleeve and the well sleeve, be equipped with combined seal circle between well sleeve and the last sleeve, well sleeve inboard is equipped with the valve plug, be equipped with the valve rod on the valve plug, the valve rod outside is equipped with the valve gap, the valve gap is installed at the valve body top, be equipped with the upper groove on the lower sleeve valve seat, be equipped with the low recess on the lower sleeve valve seat, the sealed contact angle of lower sleeve disk seat and valve plug is sixty degrees.
Further, a lower gasket is arranged on the inner side above the valve cover, a plurality of fillers are arranged on the lower gasket, a filler gland is arranged above the fillers, a pressing plate is arranged above the filler gland, and the pressing plate is installed at the top of the valve cover.
The lower gasket provides the bottom sprag for a plurality of packings, and the packing can fill the space between valve rod and the valve gap, lets keep sealed between valve rod and the valve gap, and gland can compress tightly the packing, and the clamp plate is installed at the valve gap top, and the clamp plate can be fixed gland.
Further, the left side of the valve body is provided with a left valve hole, and the right side of the valve body is provided with a right valve hole.
The left valve hole and the right valve hole can allow fluid to enter and exit the valve body, and the valve body keeps smooth.
Furthermore, a through hole is formed in the middle sleeve.
The through holes facilitate fluid to be able to pass through the middle sleeve.
Further, the combined sealing ring protrudes out of the inner surfaces of the middle sleeve and the upper sleeve, and the combined sealing ring is in contact with the valve plug.
The internal surface of sleeve, upper sleeve in the combination sealing washer protrusion lets the combination sealing washer not only can make and keep sealed between sleeve and the upper sleeve, can also let and keep sealed between sleeve and the valve plug, prevents that fluid from getting into in the space between valve gap and the valve plug.
Further, the lower sleeve valve seat protrudes from an inner surface of the lower sleeve.
The lower sleeve disk seat protrudes out of the inner surface of the lower sleeve, when the valve plug is closed, the lower sleeve disk seat can be contacted with the bottom of the valve plug, the lower sleeve disk seat can fill a gap between the valve plug and the lower sleeve, and the valve plug and the lower sleeve are kept sealed.
Compared with the prior art, the utility model, following beneficial effect has:
1. the integrated sleeve is split into three independent sleeves, when one sleeve is damaged, the damaged sleeve can be directly replaced, the three sleeves do not need to be replaced together, and materials are saved;
2. the lower sleeve valve seat and the combined sealing ring are additionally arranged among the three sleeves, so that the overall sealing performance is enhanced, the sealing effect is improved, the upper groove and the lower groove on the lower sleeve valve seat are matched with each other, the disc spring rebound effect can be generated when the valve plug and the lower sleeve valve seat are sealed, and the sealing performance is enhanced;
3. the defects of large leakage amount and short service life of the cage type regulating valve are overcome, and the market demand is met.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of a low leakage cage valve body according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 2 at C;
FIG. 4 is an enlarged view of a portion of FIG. 1 at B;
FIG. 5 is a schematic front view of a middle sleeve in an embodiment of a low leakage cage valve according to the present invention;
reference numerals in the drawings of the specification include:
the valve comprises a valve body 1, a left valve hole 101, a right valve hole 102, a lower sleeve 2, a lower sleeve valve seat 3, an upper groove 301, a lower groove 302, a middle sleeve 4, a through hole 401, a combined sealing ring 5, an upper sleeve 6, a valve plug 7, a valve rod 8, a valve cover 9, a lower gasket 10, a packing 11, a packing gland 12 and a pressing plate 13.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
as shown in fig. 1-5, the utility model relates to a low cage valve body that leaks, including valve body 1, 1 inboard of valve body is equipped with down sleeve 2, lower sleeve 2 top is equipped with well sleeve 4, well sleeve 4 top is equipped with sleeve 6, be equipped with lower sleeve disk seat 3 between lower sleeve 2 and the well sleeve 4, be equipped with combined seal 5 between well sleeve 4 and the last sleeve 6, well sleeve 4 inboard is equipped with valve plug 7, be equipped with valve rod 8 on the valve plug 7, the valve rod 8 outside is equipped with valve gap 9, valve gap 9 is installed at 1 top of valve body, be equipped with upper groove 301 on lower sleeve valve seat 3, be equipped with low recess 302 on lower sleeve valve seat 3, lower sleeve valve seat 3 is sixty degrees with the sealed contact angle of valve plug 7. Specifically, the valve body 1 is a main body of the whole low-leakage cage valve body, the lower sleeve 2, the middle sleeve 4 and the upper sleeve 6 act together to be matched with the valve plug 7, the valve plug 7 can move up and down under the driving of the valve rod 8 to cut off or adjust fluid, the lower sleeve valve seat 3 can fill a gap between the lower sleeve 2 and the middle sleeve 4 to keep the lower sleeve 2 and the middle sleeve 4 sealed, the combined sealing ring 5 can fill a gap between the middle sleeve 4 and the upper sleeve 6 to keep the middle sleeve 4 and the upper sleeve 6 sealed, the valve cover 9 can fix the lower sleeve 2, the middle sleeve 4 and the upper sleeve 6 in the valve body 1 and the valve cover 9 is connected and fixed with the valve body 1, the upper groove 301 and the lower groove 302 on the lower sleeve valve seat 3 can generate a disc spring-back effect when the valve plug 7 and the lower sleeve valve seat 3 are sealed, and the middle sleeve 4 and the lower sleeve 2 are sealed more tightly, sealed effect is better, and lower sleeve valve seat 3 is sixty degrees with the sealed contact angle of valve plug 7, can make lower sleeve valve seat 3 better with the sealed effect of valve plug 7.
Example two:
this embodiment is as the further improvement of last embodiment, as shown in fig. 1-5, the utility model relates to a low cage valve body that leaks, including valve body 1, 1 inboard of valve body is equipped with down sleeve 2, lower sleeve 2 top is equipped with well sleeve 4, well sleeve 4 top is equipped with upper sleeve 6, be equipped with lower sleeve disk seat 3 between lower sleeve 2 and the well sleeve 4, be equipped with built-up seal 5 between well sleeve 4 and the upper sleeve 6, well sleeve 4 inboard is equipped with valve plug 7, be equipped with valve rod 8 on the valve plug 7, the valve rod 8 outside is equipped with valve gap 9, valve gap 9 is installed at 1 top of valve body, be equipped with upper groove 301 on the lower sleeve disk seat 3, be equipped with low recess 302 on the lower sleeve disk seat 3, the sealed contact angle of lower sleeve disk seat 3 and valve plug 7 is sixty degrees. Specifically, the valve body 1 is a main body of the whole low-leakage cage valve body, the lower sleeve 2, the middle sleeve 4 and the upper sleeve 6 act together to be matched with the valve plug 7, the valve plug 7 can move up and down under the driving of the valve rod 8 to cut off or adjust fluid, the lower sleeve valve seat 3 can fill a gap between the lower sleeve 2 and the middle sleeve 4 to keep the lower sleeve 2 and the middle sleeve 4 sealed, the combined sealing ring 5 can fill a gap between the middle sleeve 4 and the upper sleeve 6 to keep the middle sleeve 4 and the upper sleeve 6 sealed, the valve cover 9 can fix the lower sleeve 2, the middle sleeve 4 and the upper sleeve 6 in the valve body 1 and the valve cover 9 is connected and fixed with the valve body 1, the upper groove 301 and the lower groove 302 on the lower sleeve valve seat 3 can generate a disc spring-back effect when the valve plug 7 and the lower sleeve valve seat 3 are sealed, and the middle sleeve 4 and the lower sleeve 2 are sealed more tightly, sealed effect is better, and lower sleeve valve seat 3 is sixty degrees with the sealed contact angle of valve plug 7, can make lower sleeve valve seat 3 better with the sealed effect of valve plug 7.
The inner side of the upper portion of the valve cover 9 is provided with a lower gasket 10, the lower gasket 10 is provided with a plurality of packing 11, a packing gland 12 is arranged above the packing 11, a pressing plate 13 is arranged above the packing gland 12, and the pressing plate 13 is installed at the top of the valve cover 9. Specifically, the lower gasket 10 provides bottom support for the plurality of packing 11, the packing 11 can fill a gap between the valve rod 8 and the valve cover 9, the valve rod 8 and the valve cover 9 are kept sealed, the packing gland 12 can compress the packing 11, the pressing plate 13 is installed on the top of the valve cover 9, and the pressing plate 13 can fix the packing gland 12.
The left side of the valve body 1 is provided with a left valve hole 101, and the right side of the valve body 1 is provided with a right valve hole 102. Specifically, the left valve hole 101 and the right valve hole 102 allow fluid to enter and exit the valve body 1, and the valve body 1 is kept open.
The middle sleeve 4 is provided with a through hole 401. Specifically, the number of the through holes 401 is four, and the through holes 401 facilitate the fluid to pass through the middle sleeve 4.
The combined sealing ring 5 protrudes out of the inner surfaces of the middle sleeve 4 and the upper sleeve 6, and the combined sealing ring 5 is contacted with the valve plug 7. Specifically, the combined sealing ring 5 protrudes out of the inner surfaces of the middle sleeve 4 and the upper sleeve 6, so that the combined sealing ring 5 not only can keep the sealing between the middle sleeve 4 and the upper sleeve 6, but also can keep the sealing between the middle sleeve 4 and the valve plug 7, and prevent fluid from entering a gap between the valve cover 9 and the valve plug 7.
The lower sleeve valve seat 3 projects from the inner surface of the lower sleeve 2. Specifically, the internal surface of sleeve 2 under lower sleeve valve seat 3 protrusion, when valve plug 7 closed, lower sleeve valve seat 3 can contact with 7 bottoms of valve plug, and lower sleeve valve seat 3 can fill the space between valve plug 7 and the lower sleeve 2, lets valve plug 7 and lower sleeve 2 keep sealed.
Embodiment two is relative to embodiment one, in embodiment two, lower gasket 10 provides bottom support for a plurality of packings 11, packings 11 can fill up the gap between valve rod 8 and valve cover 9, keep the seal between valve rod 8 and valve cover 9, packing gland 12 can compress packings 11, pressing plate 13 is installed on the top of valve cover 9, pressing plate 13 can fix packing gland 12, left valve hole 101 and right valve hole 102 can let fluid pass in and out valve body 1, keep valve body 1 smooth, there are four through holes 401, through holes 401 are convenient for fluid to pass through middle sleeve 4, combined sealing ring 5 protrudes from the inner surface of middle sleeve 4 and upper sleeve 6, combined sealing ring 5 can not only keep the seal between middle sleeve 4 and upper sleeve 6, but also keep the seal between middle sleeve 4 and valve plug 7, prevent fluid from entering into the gap between valve cover 9 and valve plug 7, lower sleeve valve seat 3 protrudes from the inner surface of lower sleeve 2, when the valve plug 7 was closed, lower sleeve valve seat 3 can contact with 7 bottoms of valve plug, and lower sleeve valve seat 3 can fill the space between 7 and the lower sleeve 2 of valve plug, lets valve plug 7 and lower sleeve 2 keep sealed.
The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics of the embodiments is not described herein, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (6)
1. The utility model provides a low cage valve body that leaks which characterized in that: comprises a valve body (1), a lower sleeve (2) is arranged on the inner side of the valve body (1), a middle sleeve (4) is arranged above the lower sleeve (2), an upper sleeve (6) is arranged above the middle sleeve (4), a lower sleeve valve seat (3) is arranged between the lower sleeve (2) and the middle sleeve (4), a combined sealing ring (5) is arranged between the middle sleeve (4) and the upper sleeve (6), a valve plug (7) is arranged on the inner side of the middle sleeve (4), a valve rod (8) is arranged on the valve plug (7), a valve cover (9) is arranged on the outer side of the valve rod (8), the valve cover (9) is arranged on the top of the valve body (1), an upper groove (301) is arranged on the lower sleeve valve seat (3), a lower groove (302) is arranged on the lower sleeve valve seat (3), the sealing contact angle between the lower sleeve valve seat (3) and the valve plug (7) is sixty degrees.
2. A low leakage cage valve according to claim 1, wherein: the novel packing structure is characterized in that a lower gasket (10) is arranged on the inner side above the valve cover (9), a plurality of packing (11) are arranged on the lower gasket (10), a packing gland (12) is arranged above the packing (11), a pressing plate (13) is arranged above the packing gland (12), and the pressing plate (13) is installed on the top of the valve cover (9).
3. A low leakage cage valve according to claim 2, wherein: the left side of the valve body (1) is provided with a left valve hole (101), and the right side of the valve body (1) is provided with a right valve hole (102).
4. A low leakage cage valve according to claim 3, wherein: the middle sleeve (4) is provided with a through hole (401).
5. A low leakage cage valve according to claim 4, wherein: the combined sealing ring (5) protrudes out of the inner surfaces of the middle sleeve (4) and the upper sleeve (6), and the combined sealing ring (5) is in contact with the valve plug (7).
6. A low leakage cage valve according to claim 5, wherein: the lower sleeve valve seat (3) protrudes out of the inner surface of the lower sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121241465.8U CN214789110U (en) | 2021-06-04 | 2021-06-04 | Low cage valve body that leaks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121241465.8U CN214789110U (en) | 2021-06-04 | 2021-06-04 | Low cage valve body that leaks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214789110U true CN214789110U (en) | 2021-11-19 |
Family
ID=78701078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121241465.8U Active CN214789110U (en) | 2021-06-04 | 2021-06-04 | Low cage valve body that leaks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214789110U (en) |
-
2021
- 2021-06-04 CN CN202121241465.8U patent/CN214789110U/en active Active
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