CN216407773U - Sealing device of regulating valve - Google Patents
Sealing device of regulating valve Download PDFInfo
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- CN216407773U CN216407773U CN202122462448.3U CN202122462448U CN216407773U CN 216407773 U CN216407773 U CN 216407773U CN 202122462448 U CN202122462448 U CN 202122462448U CN 216407773 U CN216407773 U CN 216407773U
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- valve
- guide cylinder
- integrated
- valve body
- valve seat
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Abstract
The utility model discloses a sealing device of a small-caliber regulating valve, which adopts the technical scheme that: the valve comprises a valve body, wherein a sealing mechanism is arranged at the top of the valve body, the sealing mechanism comprises a simple valve seat, the simple valve seat is tightly pressed inside the valve body by a guide cylinder, a valve seat sealing gasket is arranged at the joint of the simple valve seat and the valve body, an integrated valve element and a valve rod are movably connected inside the simple valve seat, the bottom ends of the integrated valve element and the valve rod extend into the valve body, and the guide cylinder is sleeved outside the integrated valve element and the valve rod, so that the valve has the beneficial effects that: the flow regulating hole on the valve body is derived to the simple valve seat, the common soft sealing gasket is selected on the valve core, and the valve core of the small-caliber regulating valve is too small in size, so that the soft sealing gasket is inconvenient to assemble on the valve core, therefore, the soft sealing gasket is packaged on the valve seat, the damage of the sealing gasket and the abrasion of the valve core are reduced in the actual use process, and the service life is prolonged.
Description
Technical Field
The utility model relates to the technical field of regulating valve sealing, in particular to a sealing device of a small-caliber regulating valve.
Background
With the development of society, more and more fluid pipelines are applied to various production and processing industries, and in order to improve the quality of products and meet the control requirements of various high-precision fluid flow rates, the demand of the current regulating valves is more and more, the value of a lot of fluids is high, and in order to avoid the waste of high-value fluids, the regulating valves with small diameters are generally selected. There are also small flow additive addition lines, which also require small bore regulator valve control. And the proportional accuracy of the small-caliber regulating valve is important.
The prior art has the following defects: the existing intelligent small-caliber regulating valve has the problems of low regulating ratio precision, short service life, easy occurrence of sealing leakage, imbalance of valve body flow ratio and the like;
therefore, the utility model discloses a novel sealing device of small-bore governing valve is very necessary.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a sealing device of a small-caliber regulating valve, which is characterized in that an integrated valve core and a valve rod are separated from a simple base by operating the regulating valve, so that the regulating valve is in an open state, fluid flows in a pipeline, the regulating valve is operated to press the integrated valve core and the valve rod on the simple base, so that the regulating valve is in a closed state, the pipeline is closed, and the problems that the existing intelligent small-caliber regulating valve is low in regulating proportion precision, low in service life, easy to leak in a sealing mode and maladjustable in valve body flow proportion are solved. The utility model provides a valve core sealing structure of a small-caliber regulating valve, which is formed by adding the tolerances of a valve rod and a guide cylinder guide ring and the tolerances of a valve core and a valve seat. The guide cylinder guide ring and the guide cylinder are processed together after being assembled, so that the guide cylinder guide ring and the guide cylinder can be seen as a part, and the valve core and the valve rod are integrated, so that the tolerance between the valve seat and the valve core is mainly the tolerance between the guide cylinder and the valve seat, the valve core is matched with holes to achieve higher precision, and the small-caliber regulating valve core sealing structure can relatively easily achieve a valve regulating proportion of 1: 50, the precision of the adjusting proportion of the valve can be higher according to the improvement of the processing precision, and the problems of low precision and short service life of the intelligent small-caliber adjusting valve in adjusting the proportion are solved.
In order to achieve the above purpose, the utility model provides the following technical scheme: the sealing device of the regulating valve comprises a valve body, wherein a sealing mechanism is arranged at the top of the valve body;
the sealing mechanism comprises a simple valve seat which is tightly pressed in the valve body by a guide cylinder, a valve seat sealing gasket is arranged at the joint of the simple valve seat and the valve body, the simple valve seat is provided with an integrated valve core and a valve rod in a pressing way, the bottom ends of the integrated valve core and the valve rod extend to the interior of the valve body, the outer side of the integrated valve core and the valve rod is sleeved with a guide cylinder, a guide cylinder sealing gasket is arranged at the joint of the guide cylinder and the simple valve seat, the top of the guide cylinder is provided with a filler keeper, the joint of the filler keeper and the valve body is provided with an O-shaped sealing ring, the bottom of the filler keeper is provided with a guide cylinder limiting pad, the bottom of the guide cylinder limiting pad is connected with the outer side of the guide cylinder, a gland nut is sleeved outside the joint of the filler keeper and the valve body, a guide cylinder guide ring is embedded inside the guide cylinder, the guide cylinder guide ring is sleeved outside the integrated valve core and the valve rod, and the top ends of the integrated valve core and the valve rod extend to the outer side of the top of the packing keeper.
Preferably, a spring is embedded in the packing keeper and is pressed between the packing seal and the guide cylinder.
Preferably, a combined packing is arranged inside the packing keeper, the combined packing is sleeved outside the integrated valve core and the valve rod, and the combined packing is positioned at the top of the spring.
Preferably, a packing guide ring is embedded at the top of the packing keeper and sleeved outside the integrated valve core and the valve rod.
Preferably, the guide cylinder guide ring and the guide cylinder are connected into a whole at the joint through threads.
Preferably, the connection part of the valve body and the compression nut is connected through threads.
The utility model has the beneficial effects that: the utility model effectively reduces the processing difficulty and tolerance gap and improves the processing precision by deriving the flow regulating hole on the valve body on the valve seat, and the common soft sealing gasket is selected on the valve core, while the valve core of the small-caliber regulating valve has too small size, so that the soft sealing gasket is inconvenient to assemble on the valve core, therefore, the soft sealing gasket is packaged on the valve seat by people, and the sealing gasket is pressed on the valve seat by the guide cylinder without complex structure and process for fixing the sealing gasket. Therefore, the damage of the sealing gasket and the abrasion of the valve core can be reduced in the actual use process, and the service life is prolonged.
Drawings
FIG. 1 is a front elevation cross-sectional view provided by the present invention;
in the figure: 1 valve body, 2 simple and easy disk seats, 3 disk seat sealed pad, 4 integral type case + valve rod, 5 guide tube, 6 filler keeper, 7 guide tube sealed pad, 8O type sealing washer, 9 gland nut, 10 guide tube guide ring, 11 springs, 12 combination packs, 13 filler guide ring, 14 guide tube spacing pads.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Embodiment 1, referring to fig. 1, the sealing device for the regulating valve provided by the utility model comprises a valve body 1, wherein a sealing mechanism is arranged at the top of the valve body 1;
the sealing mechanism comprises a simple valve seat 2, the simple valve seat 2 is compressed tightly inside a valve body 1 by a guide cylinder 5, a valve seat sealing gasket 3 is arranged at the joint of the simple valve seat 2 and the valve body 1, an integrated valve core and valve rod 4 is embedded inside the simple valve seat 2, the bottom end of the integrated valve core and valve rod 4 extends to the inside of the valve body 1, the guide cylinder 5 is sleeved outside the integrated valve core and valve rod 4, the guide cylinder 5 sealing gasket is arranged at the joint of the guide cylinder 5 and the simple valve seat 2, a filler retainer 6 is arranged at the top of the guide cylinder 5, an O-shaped sealing ring 8 is arranged at the joint of the filler retainer 6 and the valve body 1, a guide cylinder limiting gasket 14 is arranged at the bottom of the filler retainer 6, the bottom of the guide cylinder limiting gasket 14 is connected outside the guide cylinder 5, a compression nut 9 is sleeved outside the joint of the filler retainer 6 and the valve body 1, and a guide cylinder guide ring 10 is embedded inside the guide cylinder 5, the guide cylinder guide ring 10 is sleeved on the outer side of the integrated valve core and valve rod 4, and the top end of the integrated valve core and valve rod 4 extends to the outer side of the top of the filler keeper 6;
further, a spring 11 is embedded in the packing keeper 6, and the spring 11 is pressed between the packing seal and the guide cylinder;
further, a combined packing 12 is arranged inside the packing keeper 6, the combined packing 12 is sleeved outside the integrated valve core and the valve rod 4, and the combined packing 12 is located at the top of the spring 11;
further, a packing guide ring 13 is embedded at the top of the packing keeper 6, and the packing guide ring 13 is sleeved outside the integrated valve core and the valve rod 4;
further, the joint of the guide cylinder guide ring 10 and the guide cylinder 5 is in threaded connection, so that the joint is tighter;
further, the connection part of the valve body 1 and the compression nut 9 is in threaded connection, so that the connection part is smoother.
The using process of the utility model is as follows: when the utility model is used, the integrated valve core and the valve rod 4 are separated from the simple base by operating the regulating valve, the lower cavity of the air cylinder is ventilated to drive the integrated valve core and the valve rod 4 to move upwards, so that the regulating valve is in an open state, fluid flows in the pipeline, the upper cavity of the air cylinder is ventilated to enable the integrated valve core and the valve rod 4 to tightly press the simple base, so that the regulating valve is in a closed state, when the integrated valve core and the valve rod 4 move up and down, the guide cylinder provides axial guide positioning for the integrated valve core and the valve rod 4, and the guide cylinder is pressed on the simple valve seat, so that the deviation between the integrated valve core and the valve rod 4 and the central hole of the simple valve seat is reduced, and the long-time movement abrasion of the simple valve seat, the integrated valve core and the valve rod is reduced, the utility model solves the problems that the prior intelligent small-caliber regulating valve has low regulating proportion precision and low service life, the problems of sealing leakage and imbalance of the flow proportion of the valve body are easy to occur, so that the damage of a sealing gasket and the abrasion of the valve core are reduced in the actual use process, the service life is prolonged, the use efficiency of the valve is improved, the income of a manufacturer is increased, the cost is saved, and great convenience is brought to the manufacturer.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (7)
1. A sealing device of a regulating valve comprises a valve body (1), and is characterized in that: the top of the valve body (1) is provided with a sealing mechanism;
the sealing mechanism comprises a simple valve seat (2), the simple valve seat (2) is pressed at the central hole of the valve body (1) by a guide cylinder, the simple valve seat (2) is provided with a valve seat sealing gasket (3) at the joint of the valve body (1), the simple valve seat (2) is provided with an integrated valve core and a valve rod (4) in a pressing mode, the bottom end of the integrated valve core and the valve rod (4) extends to the inside of the valve body (1), the outer side of the integrated valve core and the valve rod (4) is sleeved with the guide cylinder (5), the guide cylinder (5) is pressed on a sealing gasket (7) of the simple valve seat (2), the top of the guide cylinder (5) is provided with a filler storage tank (6), the joint of the filler storage tank (6) and the valve body (1) is provided with an O-shaped sealing ring (8), the bottom of the filler storage tank (6) is provided with a guide cylinder limiting pad (14), and the bottom of the guide cylinder limiting pad (14) is connected to the outer side of the guide cylinder (5), the packing keeper (6) is equipped with gland nut (9) with the outside cover of valve body (1) junction, guide cylinder guide ring (10) are inlayed inside guide cylinder (5), guide cylinder guide ring (10) cover is established in integral type case + valve rod (4) outside, integral type case + valve rod (4) up-and-down motion.
2. A sealing device for a regulator valve according to claim 1, wherein: a spring (11) is embedded in the packing keeper (6), and the spring (11) is pressed between the combined packing (12) and the guide cylinder.
3. A sealing device for a regulator valve according to claim 1, wherein: and a combined filler (12) is arranged in the filler keeper (6), the combined filler (12) is sleeved outside the integrated valve core and the valve rod (4), and the combined filler (12) is positioned at the top of the spring (11).
4. A sealing device for a regulator valve according to claim 1, wherein: and a packing guide ring (13) is embedded at the top of the packing keeper (6), and the packing guide ring (13) is sleeved outside the integrated valve core and the valve rod (4).
5. A sealing device for a regulator valve according to claim 1, wherein: the guide cylinder guide ring (10) and the guide cylinder (5) are connected into a whole through threads.
6. A sealing device for a regulator valve according to claim 1, wherein: the connection part of the valve body (1) and the compression nut (9) is connected through threads.
7. A sealing device for a regulator valve according to claim 1, wherein: the integrated valve core and valve rod (4) presses the sealing gasket (7), and the simple valve seat (2) and the sealing gasket (7) are integrated, so that the integrated valve core and valve rod (4) presses the valve seat on the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122462448.3U CN216407773U (en) | 2021-10-13 | 2021-10-13 | Sealing device of regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122462448.3U CN216407773U (en) | 2021-10-13 | 2021-10-13 | Sealing device of regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216407773U true CN216407773U (en) | 2022-04-29 |
Family
ID=81295226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122462448.3U Active CN216407773U (en) | 2021-10-13 | 2021-10-13 | Sealing device of regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216407773U (en) |
-
2021
- 2021-10-13 CN CN202122462448.3U patent/CN216407773U/en active Active
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