CN219673418U - Fireproof automatic sealing stop valve - Google Patents
Fireproof automatic sealing stop valve Download PDFInfo
- Publication number
- CN219673418U CN219673418U CN202320926872.5U CN202320926872U CN219673418U CN 219673418 U CN219673418 U CN 219673418U CN 202320926872 U CN202320926872 U CN 202320926872U CN 219673418 U CN219673418 U CN 219673418U
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- China
- Prior art keywords
- valve
- sealing
- clack
- valve rod
- fireproof
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- 238000007789 sealing Methods 0.000 title claims abstract description 95
- 239000002184 metal Substances 0.000 claims abstract description 16
- 230000002265 prevention Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 230000009970 fire resistant effect Effects 0.000 claims 5
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 239000000945 filler Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910052755 nonmetal Inorganic materials 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model belongs to the technical field of stop valves, and particularly relates to a fireproof automatic sealing stop valve which comprises a valve body, wherein a valve cover is connected to the valve body, a valve rod is arranged on the valve cover, a filler is arranged between the valve cover and the valve rod, an operating mechanism is connected to the top of the valve rod, a fireproof positioning block is connected to the bottom end of the valve rod through a screw, the fireproof positioning block is embedded between a locking block and a valve clack, the locking block is sleeved on the outer side of the valve rod in a sliding manner, the valve clack is clamped on the outer side of the locking block, a pressing ring is arranged at the bottom end of the valve clack and is fixed through a nut, a sealing ring is embedded between the pressing ring and the valve clack, an auxiliary valve seat metal sealing ring is formed at the bottom side of the valve clack, a valve body sealing surface is arranged in the valve body, and a spring is sleeved on the outer side of the valve rod between the valve cover and the locking block. When in abnormal high-temperature working condition, the sealing ring and the fireproof positioning block are melted, and the valve clack is pressed on the sealing surface of the valve body under the pushing of the spring, so that the automatic sealing of the valve is realized.
Description
Technical Field
The utility model belongs to the technical field of stop valves, and particularly relates to a fireproof automatic sealing stop valve.
Background
The stop valve is driven by a manual, electric or pneumatic device to drive the valve rod to move up and down so as to realize the sealing of the valve. The nonmetal sealing stop valve has the characteristics of reliable sealing under the conventional working condition, but when abnormal high-temperature working conditions such as fire disaster occur, the nonmetal sealing ring is melted under high temperature, the sealing effect cannot be realized, and the mode of directly replacing the nonmetal sealing by the metal sealing ring increases the cost of the valve and reduces the durability of the valve; in addition, when the valve is in abnormal high-temperature working conditions such as fire, the valve device cannot actively provide valve driving force, so that the valve is automatically closed, and the expansion of the fire is avoided.
Disclosure of Invention
In view of the above problems, an object of the present utility model is to: the utility model provides a fire prevention self-sealing stop valve solves traditional stop valve when unusual high temperature operating mode such as conflagration, and the nonmetal sealing washer is heated and melts unable sealed effect to and the valve can not realize the self-closing's problem.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a fire prevention self-sealing stop valve, includes the valve body, be connected with the valve gap on the valve body, install valve rod and valve gap and valve rod between be provided with the filler on the valve gap, the top of valve rod is connected with operating device, the bottom of valve rod has the fire prevention locating piece through the screw connection, the fire prevention locating piece inlays the dress between latch segment and valve clack, latch segment slip-on is in the outside of valve rod, the outside at the latch segment is adorned to the valve clack card, the clamping ring is installed to the bottom of valve clack and is fixed through the nut, inlay between clamping ring and the valve clack is equipped with the sealing washer, the bottom side shaping of valve clack has vice disk seat metal seal, be provided with the valve body seal face in the valve body, the outside cover of valve rod between valve gap and the latch segment has the spring.
The beneficial effects of the utility model are as follows: when in abnormal high-temperature working condition, the sealing ring and the fireproof positioning block are melted, and the valve clack is pressed on the sealing surface of the valve body under the pushing of the spring, so that the automatic sealing of the valve is realized.
In order to firmly connect the valve rod with the fireproof positioning block;
as a further improvement of the above technical scheme: the number of the bolts connecting the fireproof positioning blocks and the valve rod is multiple.
The beneficial effects of this improvement are: at least two screws are connected with the fireproof positioning block and the valve rod, so that the falling probability of the fireproof positioning block from the valve rod can be effectively reduced.
In order to effectively avoid the relative sliding of the locking block and the valve rod in the normal state;
as a further improvement of the above technical scheme: the diameter of the fireproof positioning block is larger than that of the bottom end of the locking block and smaller than the inner diameter of the valve clack.
The beneficial effects of this improvement are: under the clamping limit of the fireproof positioning block, the locking block moves stably and synchronously along with the valve rod.
In order to enable the sealing ring to have an effective sealing effect;
as a further improvement of the above technical scheme: the sealing surface of the valve body which is positioned vertically below the sealing ring is of an upward-protruding annular structure.
The beneficial effects of this improvement are: the sealing ring can be tightly pressed on the convex sealing surface of the valve body, so that an effective sealing effect is realized.
In order to enable the auxiliary valve seat metal sealing ring to have an effective sealing effect;
as a further improvement of the above technical scheme: the auxiliary valve seat metal sealing ring is of a downward protruding annular structure, and the valve body sealing surface positioned vertically below the auxiliary valve seat metal sealing ring is of a planar structure.
The beneficial effects of this improvement are: after the sealing ring is melted, the auxiliary valve seat metal sealing ring can be pressed on the sealing surface of the valve body, so that an effective sealing effect is realized.
In order to achieve an automatic sealing effect in a high temperature environment;
as a further improvement of the above technical scheme: the spring is a compression spring, and the spring is sleeved on the outer side of the valve rod in a sliding manner.
The beneficial effects of this improvement are: after the fireproof positioning block and the sealing ring are melted, the spring releases elastic energy storage to enable the valve clack to move downwards and be pressed on the sealing surface of the valve body, so that effective automatic sealing is realized.
None of the parts of the device are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a cross-sectional block diagram of the present utility model;
FIG. 2 is a partial cross-sectional view of the present utility model in a conventional state;
FIG. 3 is a partial cross-sectional view of the seal ring and the fire-proof positioning block of the present utility model after being melted by heat;
FIG. 4 is an enlarged view of I in the present utility model;
FIG. 5 is an enlarged view of II in the present utility model;
in the figure: 1. a valve body; 2. a pressing ring; 3. a seal ring; 4. a valve flap; 5. a valve stem; 6. a spring; 7. a valve cover; 8. a filler; 9. an operating mechanism; 10. a locking block; 11. a fireproof positioning block; 12. a secondary valve seat metal seal ring; 13. sealing surface of valve body.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
Examples
As shown in fig. 1-5: the utility model provides a fire prevention self-sealing stop valve, including valve body 1, be connected with valve gap 7 on valve body 1, install valve rod 5 on the valve gap 7 and be provided with packing 8 between valve gap 7 and the valve rod 5, the top of valve rod 5 is connected with operating device 9, the bottom of valve rod 5 is through the screw connection fireproof locating piece 11, fireproof locating piece 11 inlays between latch segment 10 and valve clack 4, latch segment 10 sliding fit is in the outside of valve rod 5, the outside at latch segment 10 is clamped to valve clack 4, the clamping ring 2 is installed and is fixed through the nut to the bottom of valve clack 4, the clamping ring 2 is embedded with sealing washer 3 between valve clack 4, the bottom side shaping of valve clack 4 has vice disk seat metal seal 12, be provided with valve body sealing face 13 in the valve body 1, the outside cover 5 between valve rod 7 and the latch segment 10 is sleeved with spring 6, when unusual high temperature operating mode, sealing washer 3, fireproof locating piece 11 melts, and valve clack 4 compress tightly on valve body sealing face 13 under the promotion of spring 6, realize the automatic sealing of valve locating piece, connect the automatic sealing of valve locating piece perpendicular to the valve 11 with the valve rod 5 installs the sealing face 10 in the diameter of at least two bellies that is big diameter of the sealing washer 11 is in the diameter of the valve rod 5 is big, the sealing face 10 is down in the sealing face of the sealing washer that is down of the sealing face 10 is down-stop block 11, the sealing washer 11 is down-stop seal's the diameter of the sealing face of at least side of valve rod 11, the sealing face is big-stop block is down, the diameter of the sealing face that is more than the valve rod is down set up, the diameter of the sealing piece is down, and is in the diameter of the sealing face is down, and is in between the sealing face is down, and 5 is down, the valve body sealing surface 13 positioned vertically below the auxiliary valve seat metal sealing ring 12 is of a planar structure, after the sealing ring 3 is melted, the auxiliary valve seat metal sealing ring 12 can be pressed on the valve body sealing surface 13 to realize an effective sealing effect, the spring 6 is a compression spring, the spring 6 is slidably sleeved on the outer side of the valve rod 5, and after the fireproof positioning block 11 and the sealing ring 3 are melted, the spring 6 releases elastic energy storage to enable the valve clack 4 to move downwards and be pressed on the valve body sealing surface 13, so that an effective automatic sealing is realized.
The working principle of the technical scheme is as follows: during normal working conditions, an operator provides driving force through operating the operating mechanism 9 to drive the valve rod 5 to move up and down, so that the valve is opened and closed, and when the sealing ring 3 is pressed on the sealing surface 13 of the valve body, the valve is kept in a sealing state; when the valve rod 5 moves, the bottom end of the valve rod 5 is embedded between the valve clack 4 and the locking block 10 through a fireproof positioning block 11 connected with a screw, so that synchronous movement of the valve rod 5, the valve clack 4 and the locking block 10 is ensured, and the locking block 10 and the valve rod 5 are prevented from sliding relatively; when abnormal high-temperature working conditions such as fire disaster occur, the sealing ring 3 and the fireproof positioning block 11 are heated and melted, the spring 6 releases part of elastic energy storage to push the valve clack 4 to move downwards, so that the auxiliary valve seat metal sealing ring 12 arranged at the bottom end of the valve clack 4 is tightly pressed on the valve body sealing surface 13, and at the moment, the auxiliary valve seat metal sealing ring 12 is tightly pressed with the valve body sealing surface 13 to realize the sealing of the valve.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the utility model, and it is noted that there is virtually no limit to the specific structure which may be imposed by those skilled in the art without departing from the spirit of the utility model, and that modifications, adaptations, or variations of the foregoing features may be combined in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (6)
1. The utility model provides a fire prevention self-sealing stop valve which characterized in that: including valve body (1), be connected with valve gap (7) on valve body (1), install valve rod (5) and valve gap (7) and valve rod (5) on valve gap (7) between be provided with packing (8), the top of valve rod (5) is connected with operating device (9), there is fire prevention locating piece (11) in the bottom of valve rod (5) through the screw connection, fire prevention locating piece (11) inlay between latch segment (10) and valve clack (4), latch segment (10) slip cap is in the outside of valve rod (5), the outside of latch segment (4) cartridge is in latch segment (10), clamping ring (2) and fixed through the nut are installed to the bottom of valve clack (4), inlay between clamping ring (2) and valve clack (4) and be equipped with sealing washer (3), the bottom side shaping of valve clack (4) has vice disk seat metal seal ring (12), be provided with in valve body seal face (13) in valve body (1), spring (6) are equipped with to the outside cover of valve rod (5) between valve clack (7) and the latch segment (10).
2. A fire-resistant self-sealing shut-off valve as in claim 1 wherein: the number of the bolts connecting the fireproof positioning block (11) and the valve rod (5) is multiple.
3. A fire-resistant self-sealing shut-off valve as in claim 1 wherein: the diameter of the fireproof positioning block (11) is larger than the diameter of the bottom end of the locking block (10) and smaller than the inner diameter of the valve clack (4).
4. A fire-resistant self-sealing shut-off valve as in claim 1 wherein: the valve body sealing surface (13) positioned vertically below the sealing ring (3) is of an upward-protruding annular structure.
5. A fire-resistant self-sealing shut-off valve as in claim 1 wherein: the auxiliary valve seat metal sealing ring (12) is of a downward-protruding annular structure, and a valve body sealing surface (13) positioned vertically below the auxiliary valve seat metal sealing ring (12) is of a planar structure.
6. A fire-resistant self-sealing shut-off valve as in claim 1 wherein: the spring (6) is a compression spring, and the spring (6) is sleeved on the outer side of the valve rod (5) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320926872.5U CN219673418U (en) | 2023-04-23 | 2023-04-23 | Fireproof automatic sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320926872.5U CN219673418U (en) | 2023-04-23 | 2023-04-23 | Fireproof automatic sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219673418U true CN219673418U (en) | 2023-09-12 |
Family
ID=87892527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320926872.5U Active CN219673418U (en) | 2023-04-23 | 2023-04-23 | Fireproof automatic sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219673418U (en) |
-
2023
- 2023-04-23 CN CN202320926872.5U patent/CN219673418U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |