CN212080213U - Metal sealing flat valve - Google Patents
Metal sealing flat valve Download PDFInfo
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- CN212080213U CN212080213U CN201922153925.0U CN201922153925U CN212080213U CN 212080213 U CN212080213 U CN 212080213U CN 201922153925 U CN201922153925 U CN 201922153925U CN 212080213 U CN212080213 U CN 212080213U
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Abstract
The utility model discloses a metal seal flat valve, including valve body, valve plate and valve gap, the backup pad is installed on the upper portion of valve body, be provided with the disk seat in the backup pad, the inside radial metal seal circle that is provided with of disk seat, the upside of radial metal seal circle is provided with end face metal seal circle, the valve plate sets up the top at the disk seat, be provided with the valve rod on the valve plate, the bolted connection valve gap is passed through to the disk seat top, be provided with the backing ring between disk seat and the valve gap. The excircle design of this metal seal wafer valve disk seat has radial metal seal circle and back of the body circle, and the sealing washer is made by metal elastic material, and the cross-section of sealing washer is "U" type, and the sealed position design of sealing washer has a plurality of annular bulge (annular bulge is sealed position), play sealed effect that like this can be better, valve long service life.
Description
Technical Field
The utility model relates to the technical field of valves, specifically be a metal seal flat valve.
Background
The flat valve is mainly used in the industrial fields of long-distance pipelines, oil-gas storage, tank areas and the like, can also be used in other industrial fields, and is mainly used for switching and controlling flow of a pipeline system. The flat gate valve has the advantages of compact structure, high performance-to-cost ratio, small fluid resistance, smooth flow channel, energy conservation, good sealing performance, capability of effectively preventing the leakage of a medium, bidirectional sealing function, easy opening and closing and the like.
When the flat valve on the market is used, the sealing quality of the flashboard and the valve seat is poor, the service life of the valve is not long, and particularly under the working condition of strong corrosivity, so that the technology capable of improving the structure of the metal sealing flat valve is urgently needed on the market to perfect the equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a metal seal wafer valve to solve the sealing device of this type on the present market that above-mentioned background art provided and the unable sealed cooperation of flashboard and disk seat when using, and then lead to the problem that the plate valve can not normal use.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a metal seal flat valve, includes valve body, valve plate and valve gap, the backup pad is installed on the upper portion of valve body, be provided with the disk seat in the backup pad, the inside radial metal seal circle that is provided with of disk seat, the upside of radial metal seal circle is provided with terminal surface metal seal circle, the valve plate sets up the top at the disk seat, be provided with the valve rod on the valve plate, the bolted connection valve gap is passed through to the disk seat top, be provided with the backing ring between disk seat and the valve gap.
Preferably, the spring energy storage sealing rings are arranged on two sides above the valve rod, the sealing rings are arranged above the spring energy storage sealing rings, the packing gland is arranged above the sealing rings, a bearing seat is arranged above the packing gland, a first O-shaped ring is arranged on the surface of the bearing seat, the thrust roller pin and the retainer assembly are arranged between the packing gland and the valve cover, and a seat ring and a shaft ring are arranged inside the thrust roller pin and the retainer assembly.
Preferably the hand wheel cup joints the upper end at the valve rod, valve rod crossover sub sets up between hand wheel and valve rod, valve rod crossover sub's both sides are provided with second O shape circle, the oil cup is seted up on the bearing frame, the safety box sets up on the valve rod, high-pressure sealing grease injection valve is connected on the valve bonnet, the inside at the hand wheel is established to the split pin, the round pin axle has been inserted to split pin inside, the back of the body circle sets up the one side at radial metal seal circle.
Preferably, the sections of the radial metal sealing ring and the end face metal sealing ring are both U-shaped, and annular bulges are arranged on the radial metal sealing ring and the end face metal sealing ring.
Compared with the prior art, the beneficial effects of the utility model are that: this metal seal wafer valve:
the terminal surface of disk seat in this device is provided with metal seal, and the excircle design of disk seat has radial metal seal and back of the body circle, and the sealing washer is made by metal elastic material, and the cross-section of sealing washer is "U" type, and the sealing position design of sealing washer has a plurality of annular archs (annular arch is sealing position), play sealed effect that like this can be better, belong to interference fit during the disk seat assembly, also belong to interference fit during the valve plate assembly. When the valve is closed, fluid can enter the valve cavity from the upstream, reliable metal sealing is formed at the downstream of the valve plate, when the opening of the U-shaped sealing ring is consistent with the direction of the fluid, the sealing effect is not achieved, when the opening of the U-shaped sealing ring is opposite to the direction of the fluid, the sealing effect is achieved, the U-shaped sealing ring on the end face can seal, and the spring pre-tightening effect is achieved, so that low-pressure sealing of the valve is formed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged structure diagram of the part a of the present invention.
In the figure: 1. a valve body; 2. a support plate; 3. a valve seat; 4. a radial metal sealing ring 5 and an end face metal sealing ring; 6. a valve plate; 7. a valve stem; 8. a backing ring; 9. a bolt; 10. a spring energy storage sealing ring; 11. a seal ring; 12. a packing gland; 13. a first O-ring; 14. a thrust needle roller and cage assembly; 15. a seat ring; 16. a shaft ring; 17. a hand wheel; 18. a valve stem adapter; 19. a second O-ring; 20. an oil cup; 21. a safety box; 22. a bearing seat; 23. a high pressure sealing grease injection valve; 24. a pin shaft; 25. a cotter pin; 26. a back ring; 27. and a valve cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a metal sealing flat valve comprises a valve body 1, a support plate 2, a valve seat 3, a radial metal sealing ring 4, an end face metal sealing ring 5, a valve plate 6, a valve rod 7, a backing ring 8, a bolt 9, a spring energy storage sealing ring 10, a sealing ring 11, a packing gland 12, a first O-shaped ring 13, a thrust needle roller and retainer assembly 14, a seat ring 15, a shaft ring 16, a hand wheel 17, a valve rod adapter 18, a second O-shaped ring 19, an oil cup 20, a safety box 21, a bearing seat 22, a high-pressure sealing grease injection valve 23, a pin shaft 24, a split pin 25, a back ring 26 and a valve cover 27, wherein the support plate 2 is installed on the upper portion of the valve body 1, the valve seat 3 is arranged on the support plate, the radial metal sealing ring 4 is arranged inside the valve seat 3, the end face metal sealing ring 5 is arranged on the upper side of the radial metal sealing ring 4, the sections of, annular bulges are arranged on the radial metal sealing ring 4 and the end face metal sealing ring 5, the valve plate 6 is arranged above the valve seat 3, a valve rod 7 is arranged on the valve plate 6, the upper part of the valve seat 3 is connected with a valve cover 27 through a bolt 9, a backing ring 8 is arranged between the valve seat 3 and the valve cover 27, the spring energy storage sealing ring 10 is arranged on two sides above the valve rod 7, a sealing ring 11 is arranged above the spring energy storage sealing ring 10, a packing gland 12 is arranged above the sealing ring 11, a bearing seat 22 is arranged above the packing gland 12, a first O-shaped ring 13 is arranged on the surface of the bearing seat 22, the thrust roller pin and retainer assembly 14 is arranged between the packing gland 12 and the valve cover 27, a seat ring 15 and a shaft ring 16 are arranged inside the thrust roller pin and retainer assembly 14, and the hand wheel 17 is sleeved at the, the valve rod adapter 18 is arranged between a hand wheel 17 and a valve rod 7, second O-shaped rings 19 are arranged on two sides of the valve rod adapter 18, an oil cup 20 is arranged on a bearing seat 22, a safety box 21 is arranged on the valve rod 7, a high-pressure sealing grease injection valve 23 is connected onto a valve cover 27, a split pin 25 is arranged inside the hand wheel 17, a pin shaft 24 is inserted into the split pin 25, and a back ring 26 is arranged on one side of a radial metal sealing ring 4.
The working principle is as follows: when the metal sealing flat valve is used, firstly, a user needs to simply know the metal sealing flat valve, the user places the device at a specified position, the end face of the valve seat 3 is provided with the end face metal sealing ring 5, the outer ring of the valve seat 3 is provided with the radial metal sealing ring 4 and the back ring 26, the radial metal sealing ring 4 and the end face metal sealing ring 5 are made of metal elastic materials, the valve seat 3 is in interference fit when being assembled, the valve plate 6 is also in interference fit when being assembled, when the valve is closed, fluid can enter the valve cavity from the upstream, reliable metal sealing is formed at the downstream of the valve plate 6, when the opening of the U-shaped sealing ring is consistent with the direction of the fluid, the sealing effect is not achieved, when the opening of the U-shaped sealing ring is opposite to the direction of the fluid, the U-shaped sealing ring at the end face can be sealed, and, forming a low pressure seal for the valve, which is not described in detail in this description, is well within the skill of those in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (2)
1. The utility model provides a metal seal wafer valve, includes valve body (1), valve plate (6), spring energy storage sealing washer (10), gland (12), thrust kingpin and retainer subassembly (14), hand wheel (17), valve rod crossover sub (18), oil cup (20), safety box (21), high-pressure sealing grease injection valve (23), split pin (25), back of the body circle (26) and valve gap (27), its characterized in that: the valve is characterized in that a supporting plate (2) is installed on the upper portion of the valve body (1), a valve seat (3) is arranged on the supporting plate (2), a radial metal sealing ring (4) is arranged inside the valve seat (3), an end face metal sealing ring (5) is arranged on the upper side of the radial metal sealing ring (4), a valve plate (6) is arranged above the valve seat (3), a valve rod (7) is arranged on the valve plate (6), a valve cover (27) is connected above the valve seat (3) through a bolt (9), a backing ring (8) is arranged between the valve seat (3) and the valve cover (27), spring energy storage sealing rings (10) are arranged on two sides above the valve rod (7), a sealing ring (11) is arranged above the spring energy storage sealing ring (10), a packing gland (12) is arranged above the sealing ring (11), and a bearing seat (22) is arranged above the, the surface of the bearing seat (22) is provided with a first O-shaped ring (13), the thrust roller pin and retainer assembly (14) is arranged between the packing gland (12) and the valve cover (27), a race (15) and a shaft ring (16) are arranged in the thrust roller pin and retainer assembly (14), the hand wheel (17) is sleeved at the upper end of the valve rod (7), the valve rod adapter (18) is arranged between the hand wheel (17) and the valve rod (7), two sides of the valve rod adapter (18) are provided with second O-shaped rings (19), the oil cup (20) is arranged on the bearing seat (22), the safety box (21) is arranged on the valve rod (7), the high-pressure sealing grease injection valve (23) is connected to the valve cover (27), the split pin (25) is arranged in the hand wheel (17), the pin shaft (24) is inserted in the split pin (25), the back ring (26) is arranged on one side of the radial metal sealing ring (4).
2. The metal-seal plate valve of claim 1, wherein: the sections of the radial metal sealing ring (4) and the end face metal sealing ring (5) are U-shaped, and annular bulges are arranged on the radial metal sealing ring (4) and the end face metal sealing ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153925.0U CN212080213U (en) | 2019-12-05 | 2019-12-05 | Metal sealing flat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153925.0U CN212080213U (en) | 2019-12-05 | 2019-12-05 | Metal sealing flat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212080213U true CN212080213U (en) | 2020-12-04 |
Family
ID=73555259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922153925.0U Active CN212080213U (en) | 2019-12-05 | 2019-12-05 | Metal sealing flat valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212080213U (en) |
-
2019
- 2019-12-05 CN CN201922153925.0U patent/CN212080213U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |