CN220523298U - Two-stage sealing stop valve - Google Patents
Two-stage sealing stop valve Download PDFInfo
- Publication number
- CN220523298U CN220523298U CN202321985040.7U CN202321985040U CN220523298U CN 220523298 U CN220523298 U CN 220523298U CN 202321985040 U CN202321985040 U CN 202321985040U CN 220523298 U CN220523298 U CN 220523298U
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- Prior art keywords
- valve
- fixedly connected
- sealing
- rod
- groove
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- 238000007789 sealing Methods 0.000 title claims abstract description 69
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a two-stage sealing stop valve, which comprises a valve body, wherein a valve seat is fixedly connected to the inside of the valve body, a valve column is arranged at the upper end of the valve body, a valve cover is fixedly connected to the upper end of the valve column, a fixed cylinder is fixedly connected to the upper end of the valve cover, a valve rod is arranged in the valve column, the upper end of the valve rod penetrates through the valve cover and extends to the inner side of the fixed cylinder, a first electric push rod is arranged at the inner top of the fixed cylinder, the telescopic end of the first electric push rod is downwards and fixedly connected to the upper end of the valve rod, a first sealing groove is arranged at the upper end of the valve seat, a first sealing ring matched with the first sealing groove is fixedly connected to the lower end of the valve rod, and a placing groove is arranged on the side wall, close to the lower end, of the valve rod. The utility model can realize the secondary sealing of the valve rod and the valve seat, and has the characteristics of good sealing effect, simple and convenient operation, long service life and the like.
Description
Technical Field
The utility model relates to the technical field of stop valves, in particular to a two-stage sealing stop valve.
Background
The stop valve, also called a stop valve, is one of the most widely used valves, and is popular because the friction between sealing surfaces in the opening and closing process is small, the stop valve is durable, and the sealing surfaces of the valve rod and the valve seat are tightly attached to prevent medium from flowing.
The utility model discloses a high seal stop valve is disclosed to publication number CN113983182A name, and it includes valve body, case, valve rod, valve gap, form the disk seat in the valve body, be provided with sealed recess one on the disk seat, be provided with sealed first in the sealed recess, the case bottom is formed with central boss face, sealed recess two, the boss face two that corresponds with sealed recess one that correspond with the disk seat, valve gap and valve body fastening connection, valve rod and case integrated into one piece set up, the valve rod stretches out the valve gap outside and with valve gap threaded connection. In the patent, only a primary sealing mode of hard sealing is adopted, and the sealing mode is single, so that the sealing effect is not good enough.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a two-stage sealing stop valve.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a second grade seal stop valve, includes the valve body, the inside fixedly connected with disk seat of valve body, the upper end of valve body is equipped with the spool, the upper end fixedly connected with valve gap of spool, the upper end fixedly connected with fixed section of thick bamboo of valve gap, the inside of spool is equipped with the valve rod, the upper end of valve rod runs through the valve gap and extends to the inboard of fixed section of thick bamboo, first electric putter is installed at the interior top of fixed section of thick bamboo, the flexible end of first electric putter is fixed connection downwards at the upper end of valve rod, the upper end of disk seat is equipped with first seal groove, the lower extreme fixedly connected with and the first sealing washer of first seal groove complex of valve rod, be equipped with the standing groove on the lateral wall that the valve rod is close to the lower extreme, the inside of standing groove is equipped with the sealing member, the inside of valve rod is equipped with the installation cavity, the inside of installation cavity is equipped with the actuating mechanism who is connected with the sealing member.
As a further improvement of the utility model, the sealing element is an expansion sealing ring which is fixedly connected to the inner wall of the placing groove, and the valve seat is provided with a second sealing groove matched with the expansion sealing ring.
As a further improvement of the utility model, a second electric push rod is arranged on the inner top wall of the mounting cavity, the telescopic end of the second electric push rod faces downwards and is fixedly connected with a moving plate, the lower end of the moving plate is fixedly connected with a telescopic airbag, the lower end of the telescopic airbag is fixedly connected to the inner bottom wall of the mounting cavity, a communicating pipe is connected to the telescopic airbag, and the communicating pipe penetrates through the valve rod and is connected with an expansion sealing ring.
As a further improvement of the utility model, the first sealing ring and the expansion sealing ring are made of rubber materials.
As a further improvement of the utility model, the inner wall of the second sealing groove is an arc-shaped surface.
As a further improvement of the utility model, the spool is integrally formed with the valve body.
The utility model has the beneficial effects that:
through setting up first seal groove and first sealing washer, go into inside the first seal groove through first sealing washer card, can realize the valve rod and seal with the first of disk seat.
Through setting up expansion seal circle, second seal groove, actuating mechanism can make expansion seal circle inflation, when expansion seal circle inflation and with second seal groove inner wall support tightly, can realize the second of valve rod and disk seat and seal.
The utility model can realize the secondary sealing of the valve rod and the valve seat, and has the characteristics of good sealing effect, simple and convenient operation, long service life and the like.
Drawings
FIG. 1 is a schematic diagram of a two-stage sealing stop valve according to the present utility model;
fig. 2 is an enlarged view at a in fig. 1.
In the figure: the valve comprises a valve body 1, a valve column 2, a valve seat 3, a valve cover 4, a fixed cylinder 5, a first electric push rod 6, a valve rod 7, an installation cavity 8, a second electric push rod 9, a moving plate 10, a telescopic airbag 11, a placing groove 12, a communicating pipe 13, a first sealing groove 14, a first sealing ring 15, a second sealing groove 16 and an expansion sealing ring 17.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
1-2, a two-stage sealing stop valve, including valve body 1, the inside fixedly connected with disk seat 3 of valve body 1, the upper end of valve body 1 is equipped with spool 2, spool 2 and valve body 1 integrated into one piece, the upper end fixedly connected with valve gap 4 of spool 2, the upper end fixedly connected with fixed section of thick bamboo 5 of valve gap 4, the inside of spool 2 is equipped with valve rod 7, the upper end of valve rod 7 runs through valve gap 4 and extends to the inboard of fixed section of thick bamboo 5, first electric putter 6 is installed at the interior top of fixed section of thick bamboo 5, the flexible end of first electric putter 6 is fixed connection downwards at the upper end of valve rod 7, the upper end of disk seat 3 is equipped with first seal groove 14, the lower extreme fixedly connected with first seal groove 14 complex first sealing washer 15, be equipped with standing groove 12 on the lateral wall that valve rod 7 is close to the lower extreme, the inside of standing groove 12 is equipped with the sealing member, the inside of valve rod 7 is equipped with installation cavity 8, the inside of installation cavity 8 is equipped with the actuating mechanism who is connected with the sealing member.
In the utility model, the sealing element is an expansion sealing ring 17, the expansion sealing ring 17 is fixedly connected to the inner wall of the placing groove 12, the valve seat 3 is provided with a second sealing groove 16 matched with the expansion sealing ring 17, and the inner wall of the second sealing groove 16 is an arc surface.
The second electric putter 9 is installed on the interior roof of specific installation chamber 8, and the flexible end of second electric putter 9 is down and fixedly connected with movable plate 10, and the lower extreme fixedly connected with flexible gasbag 11 of movable plate 10, the lower extreme fixedly connected with of flexible gasbag 11 is on the interior diapire of installation chamber 8, is connected with communicating pipe 13 on the flexible gasbag 11, and communicating pipe 13 passes valve rod 7 and is connected with expansion seal 17, and first sealing washer 15 and expansion seal 17 are the rubber material.
When the valve rod sealing device is used, the first electric push rod 6 is started to extend to drive the valve rod 7 to descend, the valve rod 7 is clamped into the first sealing groove 14 through the first sealing ring 15, the first sealing between the valve rod 7 and the valve seat 3 can be achieved, the second electric push rod 9 is started to extend to drive the moving plate 10 to move, the telescopic airbag 11 is compressed through the moving plate 10, the expansion sealing ring 17 can be further expanded, and when the expansion sealing ring 17 is expanded and abuts against the inner wall of the second sealing groove 16, the second sealing between the valve rod 7 and the valve seat 3 can be achieved.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (6)
1. The utility model provides a second grade seal stop valve, includes valve body (1), its characterized in that, the inside fixedly connected with disk seat (3) of valve body (1), the upper end of valve body (1) is equipped with spool (2), the upper end fixedly connected with valve gap (4) of spool (2), the upper end fixedly connected with fixed section of thick bamboo (5) of valve gap (4), the inside of spool (2) is equipped with valve rod (7), the upper end of valve rod (7) runs through valve gap (4) and extends to the inboard of fixed section of thick bamboo (5), first electric putter (6) are installed at the interior top of fixed section of thick bamboo (5), the flexible end of first electric putter (6) is fixed connection downwards in the upper end of valve rod (7), the upper end of disk seat (3) is equipped with first seal groove (14), the lower extreme fixedly connected with and first seal groove (15) of first seal groove (14) complex of valve rod (7), be close to be equipped with standing groove (12) on the lateral wall of lower extreme, the inside of standing groove (7) is equipped with sealing member (8), inside mounting mechanism (8) are equipped with sealing member (8).
2. A two-stage sealing stop valve according to claim 1, characterized in that the sealing element is an expansion sealing ring (17), the expansion sealing ring (17) is fixedly connected to the inner wall of the placing groove (12), and the valve seat (3) is provided with a second sealing groove (16) matched with the expansion sealing ring (17).
3. The two-stage sealing stop valve according to claim 2, wherein a second electric push rod (9) is installed on the inner top wall of the installation cavity (8), the telescopic end of the second electric push rod (9) faces downwards and is fixedly connected with a moving plate (10), the lower end of the moving plate (10) is fixedly connected with a telescopic airbag (11), the lower end of the telescopic airbag (11) is fixedly connected to the inner bottom wall of the installation cavity (8), a communicating pipe (13) is connected to the telescopic airbag (11), and the communicating pipe (13) penetrates through a valve rod (7) and is connected with an expansion sealing ring (17).
4. A two-stage sealing shut-off valve according to claim 1, characterized in that the first sealing ring (15) and the expansion sealing ring (17) are both of rubber material.
5. The two-stage seal shut-off valve of claim 2 wherein the inner wall of the second seal groove (16) is arcuate.
6. A two-stage sealing shut-off valve according to claim 1, characterized in that the spool (2) is integrally formed with the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321985040.7U CN220523298U (en) | 2023-07-27 | 2023-07-27 | Two-stage sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321985040.7U CN220523298U (en) | 2023-07-27 | 2023-07-27 | Two-stage sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220523298U true CN220523298U (en) | 2024-02-23 |
Family
ID=89928454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321985040.7U Active CN220523298U (en) | 2023-07-27 | 2023-07-27 | Two-stage sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220523298U (en) |
-
2023
- 2023-07-27 CN CN202321985040.7U patent/CN220523298U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |