CN220102085U - Butterfly valve with prevent sinking structure - Google Patents
Butterfly valve with prevent sinking structure Download PDFInfo
- Publication number
- CN220102085U CN220102085U CN202321230625.8U CN202321230625U CN220102085U CN 220102085 U CN220102085 U CN 220102085U CN 202321230625 U CN202321230625 U CN 202321230625U CN 220102085 U CN220102085 U CN 220102085U
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- valve
- valve rod
- butterfly
- flat gasket
- boss
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- 230000000670 limiting effect Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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Abstract
The utility model discloses a butterfly valve with a sinking preventing structure, which relates to the technical field of butterfly valves and comprises the following specific schemes: the butterfly valve with the sinking preventing structure comprises a valve body, wherein a valve rod is axially arranged in the valve body, the periphery of the valve rod is fixedly sleeved with a butterfly plate, a limit flat gasket is arranged on the periphery of the top of the valve rod, a boss is arranged at the top of the valve body, the limit flat gasket is abutted against the boss, an adjusting nut is connected to the bottom of the valve body through threads, and the adjusting nut penetrates through the valve body to be matched with the bottom end of the valve rod; the periphery of the top of the valve rod is provided with a limit flat gasket, the top of the valve body is provided with a boss, the limit flat gasket is abutted against the boss, the boss has a limit function on the valve rod and the butterfly plate through the limit flat gasket, the offset function of downward gravity of the butterfly plate part is achieved, and the upper valve rod and the butterfly plate are prevented from sinking; the adjusting nut is arranged, so that the influence of deformation and the like caused by sinking of the butterfly plate can be effectively compensated, and even if the butterfly plate is sinking, the butterfly plate can be reset by adjusting the threads of the adjusting nut.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a sinking preventing structure.
Background
In the actual use process of the butterfly valve, the butterfly valve can be mainly divided into vertical installation and horizontal installation due to different installation modes, the axis of a horizontal installation valve rod is parallel to the ground, the horizontal installation butterfly plate is uniformly stressed and is supported by the valve rod, and the horizontal installation butterfly plate is less in gravity deformation; but vertical installation valve rod axis perpendicular to ground, the butterfly plate is hardly supported by the valve rod in the gravity direction, relies on the disk seat basically to effectively support the butterfly plate, and this will produce a drawback: the butterfly plate is easy to downwards shift together with the valve rod under the action of gravity, the butterfly plate can generate gradually increasing acting force on the valve seat at the lower part, gradually reducing acting force is generated on the valve seat at the upper part, the water leakage phenomenon is easy to occur after a long time, the valve seat is easy to be extruded by the butterfly plate to deform, and the water leakage problem is difficult to repair.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the butterfly valve with the anti-sinking structure, wherein the periphery of the top of the valve rod is provided with the limiting flat gasket, the top of the valve body is provided with the boss, the limiting flat gasket is abutted against the boss, and the boss has a limiting effect on the valve rod and the butterfly plate through the limiting flat gasket, so that the counter-acting effect of downward gravity of the butterfly plate part is achieved, and the upper valve rod and the butterfly plate are prevented from sinking; the adjusting nut is arranged, so that the influence of deformation and the like caused by sinking of the butterfly plate can be effectively compensated, and even if the butterfly plate is sinking, the butterfly plate can be reset by adjusting the threads of the adjusting nut.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
the utility model provides a butterfly valve with prevent sinking structure, includes the valve body, sets up the valve rod in the valve body, and the valve rod week side is fixed cup joint with the butterfly plate, and valve rod top position week side is equipped with spacing flat gasket, and valve body top position is equipped with the boss, and spacing flat gasket butt is on the boss, and valve body bottom threaded connection has adjusting nut, and adjusting nut runs through valve body and valve rod bottom cooperation.
As a further implementation mode, the valve rod comprises an upper valve rod and a lower valve rod, the bottom end of the upper valve rod is fixedly sleeved with the butterfly plate, and the top end of the lower valve rod is fixedly sleeved with the butterfly plate.
As a further implementation mode, the upper valve rod and the lower valve rod are fixedly connected with the butterfly plate through pin shafts.
As a further implementation mode, the boss is annular, and the limiting flat gasket is also annular.
As a further implementation manner, the limiting flat gasket is of a split structure or a circular ring structure.
As a further implementation mode, an annular groove is formed in the peripheral side of the upper valve rod corresponding to the boss, the inner side of the limiting flat gasket is matched with the groove, and the outer side of the limiting flat gasket is abutted to the boss.
As a further implementation, the valve body bottom opening is provided.
As a further implementation mode, the opening at the bottom of the valve body is matched with a thread bush, and the thread bush is provided with an internal thread.
As a further implementation manner, the adjusting nut is matched with the threaded sleeve, and the end part of the adjusting nut penetrates through the threaded sleeve to be matched with the bottom end of the lower valve rod.
As a further implementation mode, a valve cap is arranged at the bottom of the valve body and is arranged outside the adjusting screw thread and the screw thread sleeve.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the limit flat gasket is arranged on the periphery of the top of the valve rod, the boss is arranged at the top of the valve body and is abutted against the boss, and the boss has a limit function on the valve rod and the butterfly plate through the limit flat gasket, so that the downward gravity of the butterfly plate part is counteracted, and the upper valve rod and the butterfly plate are prevented from sinking; the adjusting nut is arranged, so that the influence of deformation and the like caused by sinking of the butterfly plate can be effectively compensated, and even if the butterfly plate is sinking, the butterfly plate can be reset by adjusting the threads of the adjusting nut.
2. The limiting flat gasket is of a split structure, and is convenient to install in the groove of the upper valve rod when being installed.
3. The adjusting nut and the limiting flat gasket have double protection effects on the butterfly plate, and can effectively prevent the butterfly plate and the valve rod from sinking. The arrangement of the adjusting nut can ensure that the unbalanced acting force of the butterfly plate is reduced by the valve seat, the effect of sealing for a long time without deformation is achieved, and the durability and the reliability of sealing are ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic view of the overall structure of a butterfly valve with a sinking preventing structure according to an embodiment of the utility model;
FIG. 2 is a side view in cross section of a butterfly valve having an anti-sinking feature in accordance with an embodiment of the utility model;
FIG. 3 is a schematic view of the portion A in FIG. 2;
FIG. 4 is a schematic view of the portion B of FIG. 2;
FIG. 5 is a schematic view of a spacing flat gasket in an embodiment of the present utility model;
FIG. 6 is a schematic view of the construction of an adjustment nut in accordance with an embodiment of the present utility model;
fig. 7 is a schematic view of the structure of a thread bush in an embodiment of the present utility model.
In the figure: the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustration is only schematic.
Wherein: 1. butterfly valve, 2, butterfly plate, 3, valve rod, 3-1, upper valve rod, 3-2, lower valve rod, 4, boss, 5, spacing flat gasket, 6, recess, 7, valve body, 8, valve cap, 9, adjusting nut, 10, thread bush.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
Example 1
In a typical embodiment of the present utility model, referring to fig. 1-7, a butterfly valve with a sinking preventing structure is shown, the butterfly valve 1 comprises a valve body 7, a valve rod 3 is axially arranged in the valve body 7, the periphery of the valve rod 3 is fixedly sleeved with a butterfly plate 2, the valve rod 3 comprises an upper valve rod 3-1 and a lower valve rod 3-3, the bottom end of the upper valve rod 3-1 is fixedly sleeved with the butterfly plate, the top end of the lower valve rod 3-2 is fixedly sleeved with the butterfly plate 2, and the upper valve rod 3-1 and the lower valve rod are fixedly connected with the butterfly plate 2 through pin shafts.
As shown in fig. 2-4, a boss 4 is arranged in the valve body 7 near the top, the boss 4 is annular, an annular groove 6 is arranged on the periphery of the upper valve rod 3-1 corresponding to the boss 4, a limit flat gasket is arranged at the groove 6, the inner side of the limit flat gasket is matched with the groove 6, the outer side of the limit flat gasket is used for being abutted with the boss, the limit flat gasket is abutted with the top of the boss 4, and the upper valve rod 3-1 can be prevented from sinking through the effect of the limit flat gasket 5, so that a butterfly plate is prevented from sinking.
As shown in fig. 5, the limit flat gasket 5 is also in an annular shape, and the limit flat gasket 5 is in a split structure or a circular ring structure, so that the limit flat gasket 5 comprises two semicircular gaskets, and is convenient to be installed in the groove of the upper valve rod 3-1.
As shown in fig. 2 and 4, an adjusting nut 9 is connected to the bottom of the valve body 7 in a threaded manner, and the adjusting nut 9 penetrates through the valve body 7 to be matched with the bottom end of the valve rod 3. Specifically, the bottom of the valve body 7 is arranged corresponding to the opening at the end part of the lower valve rod 3-2, the opening at the bottom of the valve body 7 is matched with a thread bush, and the thread bush 10 also has a sealing effect on the valve body.
The threaded sleeve 10 is provided with an internal thread. The adjusting nut 9 is matched with the threaded sleeve 10, and the end part of the adjusting nut 9 penetrates through the threaded sleeve to be matched with the bottom end of the lower valve rod 3-2. The bottom of the valve body 7 is provided with a valve cap 8, and the valve cap 8 covers the outer side of the adjusting screw thread and the screw thread sleeve 10. The thread bush 10 is also provided with external threads, and is fixedly matched with the internal threads at the opening at the bottom of the valve body through the external threads. Or the thread sleeve can be welded with the opening at the bottom of the valve body.
The valve rod 3 of this embodiment is designed for two segmentation structures, including upper valve rod and lower valve rod, and upper valve rod is used for through spacing flat gasket and boss butt, and boss 4 has spacing effect through spacing flat gasket 5 to upper valve rod 3-1 and butterfly plate 2, plays the offset effect of butterfly plate 2 part downward gravity, prevents upper valve rod 3-1 and butterfly plate 2 subsidence. The bottom end of the lower valve rod 3-2 is connected with the adjusting nut 9, the adjusting nut 9 is rotated, the lower valve rod 3-2 can drive the butterfly plate 2 to move up and down, even if the butterfly plate 2 sinks, the butterfly plate 2 can be reset through the adjusting nut 9 for screw thread adjustment, and the adjusting nut 9 can effectively compensate the influence of deformation and the like caused by the sinking of the butterfly plate 2.
The adjusting nut 9 and the limiting flat gasket 5 have double protection effects on the butterfly plate, and can effectively prevent the butterfly plate and the valve rod from sinking. The arrangement of the adjusting nut can ensure that the unbalanced acting force of the butterfly plate 2 is reduced by the valve seat, the effect of sealing for a long time without deformation is achieved, and the durability and the reliability of sealing are ensured.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a butterfly valve with prevent sinking structure, its characterized in that, including the valve body, the valve body is interior to be set up the valve rod, and valve rod week side is fixed cup joint with the butterfly plate, and valve rod top position week side is equipped with spacing flat gasket, and valve body top position is equipped with the boss, and spacing flat gasket butt is on the boss, and valve body bottom threaded connection has adjusting nut, and adjusting nut runs through valve body and valve rod bottom cooperation.
2. The butterfly valve with the anti-sinking structure according to claim 1, wherein the valve rod comprises an upper valve rod and a lower valve rod, the bottom end of the upper valve rod is fixedly sleeved with the butterfly plate, and the top end of the lower valve rod is fixedly sleeved with the butterfly plate.
3. The butterfly valve with the anti-sinking structure according to claim 2, wherein the upper valve rod and the lower valve rod are fixedly connected with the butterfly plate through pin shafts.
4. The butterfly valve with the anti-sinking structure according to claim 2, wherein the boss is annular, and the limit flat gasket is also annular.
5. The butterfly valve with the anti-sinking structure according to claim 4, wherein the limiting flat gasket is of a split structure or a circular ring structure.
6. The butterfly valve with the anti-sinking structure according to claim 5, wherein an annular groove is formed in the peripheral side of the upper valve rod corresponding to the boss, the inner side of the limiting flat gasket is matched with the groove, and the outer side of the limiting flat gasket is abutted against the boss.
7. The butterfly valve with anti-sinking structure according to claim 2, wherein the valve body bottom opening is provided.
8. The butterfly valve with the anti-sinking structure according to claim 7, wherein the opening at the bottom of the valve body is matched with a threaded sleeve, and the threaded sleeve is provided with internal threads.
9. The butterfly valve with anti-sinking structure according to claim 8, wherein the adjusting nut is engaged with the threaded sleeve, and the end of the adjusting nut is engaged with the bottom end of the lower stem through the threaded sleeve.
10. The butterfly valve with anti-sinking structure according to claim 9, wherein the bottom of the valve body is provided with a valve cap, and the valve cap is arranged outside the adjusting screw thread and the screw thread sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321230625.8U CN220102085U (en) | 2023-05-18 | 2023-05-18 | Butterfly valve with prevent sinking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321230625.8U CN220102085U (en) | 2023-05-18 | 2023-05-18 | Butterfly valve with prevent sinking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220102085U true CN220102085U (en) | 2023-11-28 |
Family
ID=88845515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321230625.8U Active CN220102085U (en) | 2023-05-18 | 2023-05-18 | Butterfly valve with prevent sinking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220102085U (en) |
-
2023
- 2023-05-18 CN CN202321230625.8U patent/CN220102085U/en active Active
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