CN214305377U - Dustproof flange gas gate valve - Google Patents
Dustproof flange gas gate valve Download PDFInfo
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- CN214305377U CN214305377U CN202023301050.3U CN202023301050U CN214305377U CN 214305377 U CN214305377 U CN 214305377U CN 202023301050 U CN202023301050 U CN 202023301050U CN 214305377 U CN214305377 U CN 214305377U
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Abstract
The utility model discloses a dustproof flange gas gate valve, which comprises a valve body, a valve cover and a protective gland which are connected in sequence from bottom to top, wherein a valve rod is arranged inside the valve body; a thrust ring is arranged inside the valve cover; the top end of the valve rod is connected with a rotating hand wheel; the left side and the right side of the valve body are transversely provided with sleeves, and the left end and the right end of each sleeve are respectively provided with a connecting flange; the bottom end of the valve rod is in threaded fit with a gate plate capable of lifting, two ends of the inner side wall of the valve body are respectively provided with a guide groove, and the side wall of the gate plate is provided with a guide convex block which is matched with the guide grooves to slide; the valve rod below the thrust ring is sleeved with an annular sealing bulge, the top end of the flashboard is fixedly provided with a rubber convex ring, and a sealing groove is formed in the valve cover. The utility model discloses when the flashboard was opened completely, the rubber bulge loop on flashboard top was sealed with the protruding cooperation of annular seal, and then has effectively guaranteed that the air current can not produce the condition of leaking.
Description
Technical Field
The utility model relates to a gas valve technical field, more specifically relate to a dustproof flange gas gate valve.
Background
With the development of pipeline natural gas, the demand of gas pipeline valves is increasing. The gas pipeline valve is used as a valve of a pipeline gas control switch, is used for cutting off, connecting and adjusting gas in a pipeline, has good control characteristics and closing sealing performance, and is a main part influencing the overall safety of a gas pipeline.
The inside of present gas pipeline valve is provided with the flashboard that can go up and down usually, and when the flashboard was opened completely, there was the clearance between flashboard and the valve gap, and the gas tightness is not good, and gas can outwards leak through the clearance. And the existing flashboard is mostly designed to be a flat plate in the valve body, and the flashboard and the valve seat are easily corroded and abraded by fluid and sundries to cause certain damage to the flashboard and a sealing surface.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a dustproof flange gas gate valve to solve the technical problem in the background art, with the gas tightness when guaranteeing the flashboard and opening completely, make the valve plate can carry out vertical motion, and can guarantee the stationarity of motion.
In order to solve the technical problem, the utility model adopts the following technical proposal.
The dustproof flange gas gate valve comprises a valve body, a valve cover and a protective gland which are sequentially connected from bottom to top, wherein a valve rod is longitudinally arranged at the center position inside the valve body; a thrust ring which is sleeved on the valve rod and used for limiting the push-up position of the valve rod is arranged inside the valve cover; the top end of the valve rod penetrates through the protective gland and is connected with a rotating hand wheel; the left side and the right side of the valve body are transversely provided with sleeve pipes communicated with the inner cavity of the valve body, and the left end and the right end of each sleeve pipe are respectively provided with a connecting flange; the bottom end of the valve rod is in threaded fit with a gate plate capable of lifting, two ends of the inner side wall of the valve body are respectively provided with a guide groove, and the side wall of the gate plate is provided with a guide convex block which is matched with the guide grooves to slide; the valve rod that is located thrust ring below is gone up the cover and is equipped with annular sealing arch, and the top of flashboard is fixed to be provided with when being used for the gate valve to open entirely with the protruding sealed rubber bulge of annular sealing, the inside of valve gap offer be used for the gate valve open entirely when with the seal groove of rubber bulge looks adaptation.
According to the technical scheme, the middle of the gate plate is a ductile iron plate body which is not easy to deform, the outer surface of the ductile iron plate body is wrapped with a rubber layer for sealing, and the edges on the two sides of the outer circumference of the gate plate are annularly provided with side sealing structures which are matched with the valve body and provided with protrusions.
Further optimize technical scheme, run through on the flashboard and offer the through-hole that is used for making the valve rod pass, the inside of flashboard is provided with the flashboard nut of joining in marriage with the valve rod screw thread.
Further optimize technical scheme, be provided with the suit on the valve rod in the valve gap that lies in thrust ring top, be used for preventing two O type circle seal cover one of valve rod gas leakage.
Further optimize technical scheme, the inside bottom of protection gland is provided with the suit on the valve rod, is used for preventing two O type circle seal cover two of valve rod gas leakage.
Further optimize technical scheme, be provided with the valve position indicator who is used for instructing valve on-off state on the protection gland.
According to the technical scheme, the bottom end of the valve cover is integrally connected with an upper flange, the top end of the valve body is integrally connected with a lower flange, the lower flange is provided with a plurality of threaded blind holes, the upper flange is provided with a plurality of threaded holes corresponding to the threaded blind holes, and the upper flange and the lower flange are fixed through hexagon socket head cap counter bore bolts respectively matched with the threaded holes and the threaded blind holes.
According to the technical scheme, the top cover of the inner hexagonal counter bore bolt is provided with a dustproof plug.
According to the technical scheme, a flange pad capable of enabling the inner hexagonal counter bore bolt to penetrate through is further arranged between the upper flange and the lower flange.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses when the flashboard was opened completely, the protruding cooperation of the rubber bulge loop on flashboard top and annular seal was sealed, and then had effectively guaranteed that the air current can not produce the condition of leaking to can take the area to press online change O type seal cover one, O type seal cover two. And the utility model provides a flashboard can be along the vertical lift of guide way, and the guide way that the inside wall both ends of valve body were seted up can slide with the guide lug cooperation that sets up on the lateral wall of flashboard, guarantees gliding smooth and easy nature, and when the valve was opened entirely, the flashboard can not be harmd to the fluid, has improved the holistic life of device.
The utility model discloses the bottom body coupling of valve gap is provided with the flange, and the top body coupling of valve body is provided with the lower flange, has seted up a plurality of screw thread blind holes on the lower flange, has seted up a plurality ofly on the upper flange and has put corresponding screw hole with screw thread blind hole, fixes through the hexagon socket head counter bore bolt with screw hole and screw thread blind hole looks adaptation respectively between upper flange and the lower flange. And after the inner hexagonal counter bore bolt is fastened, a dustproof cover is covered without exposed screws. The threaded blind holes on the lower flange are blind holes, so that the outer environment cannot corrode the hexagon socket head countersunk bolt, and the dustproof and antirust functions are achieved.
The utility model discloses go up and still be provided with the flange pad that can make hexagon socket head counter bore bolt pass between flange and the lower flange, make medium and external environment can not corrode the valve body bolt in the pipeline, reach dustproof rust-resistant.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 according to the present invention;
fig. 4 is a front view of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4 in accordance with the present invention;
fig. 6 is a partial cut-away view of the present invention;
fig. 7 is a front view of the valve body of the present invention;
fig. 8 is a side view of the valve body of the present invention;
fig. 9 is a cross-sectional view taken along line C-C of fig. 8 in accordance with the present invention;
fig. 10 is a schematic structural view of the shutter of the present invention;
fig. 11 is a front view of the shutter of the present invention.
Wherein: 1. the novel valve comprises a valve body, a valve cover, a protective gland, a sleeve pipe, a sealing groove, a valve position indicator, a flashboard, a valve rod, a rotating hand wheel, a flashboard nut, a sealing ring, a thrust ring, an O-shaped sealing sleeve I, a sealing sleeve II, an O-shaped sealing sleeve 18, a rubber convex ring, a guide convex block 19, a guide groove 20, an upper flange 21, a lower flange 22, a lower flange 23, an inner hexagonal counter bore bolt 24, a connecting flange 25 and a flange gasket 25.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A dustproof flange gas gate valve is shown in a combined view of fig. 1 to 11 and comprises a valve body 1, a valve cover 2, a protective gland 3, a gate plate 10 and a valve rod 11.
The valve body 1, the valve cover 2 and the protection gland 3 are sequentially connected through bolts from bottom to top, the flashboard 10 is located in the inner center of the valve body 1, the valve rod 11 is longitudinally arranged in the inner center of the valve body 1, the valve cover 2 and the protection gland 3, and the top end of the valve rod 11 is connected with the rotating hand wheel 12. The bottom end of the valve stem 11 is screw-fitted with the shutter 10 through a shutter nut 13.
A rotating handwheel 12 arranged at the top of the protective gland 3 is used for driving the valve rod 11 to rotate. The valve position indicating gauge 8 is arranged below the rotating hand wheel 12, the valve position indicating gauge 8 is used for indicating the opening and closing state of the valve, the valve position indicating gauge 8 is located on the ground, and an operator can clearly know the opening and closing conditions of the valve on the ground so as to conveniently operate. The inside bottom of protection gland 3 is provided with two O type seal cover two 17, and O type seal cover two 17 suit is on valve rod 11 for improve the sealed effect of protection gland 3 and valve rod 11, prevent that valve rod 11 from leaking gas.
The top end in the valve gap 2, namely the connecting end with the protection gland 3 is provided with two O-shaped sealing sleeves 16, and the O-shaped sealing sleeves 16 are sleeved on the valve rod 11 to improve the sealing effect of the valve gap 2 and the valve rod 11 and prevent the valve rod 11 from leaking gas. A thrust ring 15 is arranged below the O-shaped sealing sleeve I16, the thrust ring 15 is sleeved on the valve rod 11, and the thrust ring 15 is used for limiting the push-up position of the valve rod 11, so that the opening range of the flashboard 10 is guaranteed, and the flashboard 10 is prevented from exceeding the stroke range of a gas channel to cause the damage of the gas gate valve. An annular sealing bulge 14 is arranged below the thrust ring 15, the annular sealing bulge 14 is sleeved on the valve rod 11 and corresponds to the upper position and the lower position of the gate plate nut 13, when the gate valve is fully opened, the gate plate nut 13 moves upwards to abut against the annular sealing bulge 14, the sealing effect is achieved, and the O-shaped sealing sleeve I and the O-shaped sealing sleeve II can be replaced on line.
The middle of the gate plate 10 is a nodular cast iron plate body which is high in material strength, not easy to deform and lower in cost than steel. The outer surface of the nodular cast iron plate body in the middle of the gate plate 10 is coated with a rubber layer, the rubber layer is used for improving the sealing effect between the gate plate 10 and the valve body 1, and meanwhile, the generation of static electricity is also avoided. Two side edge rings of the outer circumference of the gate plate 10 are provided with side sealing structures with protrusions for improving the sealing effect. The rubber layer and the side sealing structure are both made of NBR improved rubber (nitrile rubber), the rubber layer and the side sealing structure are excellent in oil resistance, high in abrasion resistance, good in heat resistance and strong in bonding force, are not prone to generating abrasion with the valve body 1 to generate fragments, the pre-tightening sealing force is reduced, and the problem that the inner part and the outer part of the existing soft sealing gate valve are prone to leaking due to poor sealing is solved effectively, so that the safety performance, the sealing effect and the service life of the gate valve are improved.
The two ends of the inner side wall of the valve body 1 are respectively provided with a guide groove 20, and the side wall of the flashboard 10 is provided with a guide convex block 19 which is matched with the guide groove 20 to slide.
An annular sealing bulge 14 sleeved on the valve rod 11 is arranged below the thrust ring 15, and a rubber convex ring 18 used for being matched and sealed with the annular sealing bulge 14 when the gate valve is fully opened is fixedly arranged at the top end of the gate plate 10. The inside of valve gap 2 is seted up and is used for the gate valve full open-time with the seal groove 5 of rubber bulge loop 18 looks adaptation.
The structure of the valve body 1 is matched with the side sealing structure of the flashboard 10.
The valve body 1 is made of steel and is formed by butt welding, the surface is sprayed with an anti-corrosion coating, and the buried service life can be prolonged. The left side and the right side of the valve body 1 are transversely provided with the sleeve pipes 4 communicated with the inner cavity of the valve body 1, the sleeve pipes 4 are steel welded gate valves, and the welding method points are normal point gate valves, so that the sealing performance is good, the friction force between sealing surfaces is small, and the service life is long. The left end and the right end of the sleeve 4 are respectively provided with a connecting flange 24, which is convenient for connecting the whole device.
The utility model provides a valve gap 2, valve position dial gauge 8, flashboard 10, valve rod 11's material are the copper product matter, have reached non-maintaining purpose.
An upper flange 21 is integrally connected to the bottom end of the valve cover 2, a lower flange 22 is integrally connected to the top end of the valve body 1, a plurality of threaded blind holes are formed in the lower flange 22, a plurality of threaded holes corresponding to the threaded blind holes are formed in the upper flange 21, and the upper flange 21 and the lower flange 22 are fixed through hexagon socket head cap counter bore bolts 23 respectively matched with the threaded holes and the threaded blind holes. And after the inner hexagonal counter bore bolt 23 is fastened, a dustproof cover is covered, and no exposed screw is arranged. The threaded blind holes on the lower flange 22 are blind holes, so that the outer environment cannot corrode the hexagon socket head countersunk bolt, and the dustproof and antirust functions are achieved.
And a dustproof plug is arranged at the top cover of the inner hexagonal counter bore bolt 23.
A flange gasket 25 capable of enabling the inner hexagonal counterbore bolt 23 to penetrate is further arranged between the upper flange 21 and the lower flange 22, so that the valve body bolt cannot be rusted by media in the pipeline and the external environment, and dust prevention and rust prevention are achieved.
The utility model discloses what the outside anticorrosive technology of valve body adopted is whole spraying plastics, spouts fluorocarbon finish again, plays ultraviolet resistance and dustproof rust-resistant effect.
The utility model discloses at the during operation, through rotating hand wheel 12 and rotating valve rod 11, drive flashboard 10 and accomplish opening and closing of gate valve at 1 internal up-and-down motion of valve body, the side seal structure that rubber layer and both sides ring established through flashboard 10 surface parcel prevents that the in-process of function from producing static and because of generating the piece with 1 friction of valve body, has improved the holistic security of gas pipeline and the sealed efficiency between flashboard 10 and the valve body 1, has improved the life of gate valve.
When the flashboard 10 is completely opened, the rubber convex ring 18 at the top end of the flashboard 10 is matched with the annular sealing bulge 14 for sealing, so that the condition that air flow cannot leak is effectively guaranteed, and the first O-shaped sealing sleeve and the second O-shaped sealing sleeve can be replaced on line under pressure.
And the utility model provides a flashboard 10 can be along the vertical lift of guide way 20, and when the valve was opened entirely, the flashboard can not be harmd to the fluid, has improved the holistic life of device.
Claims (9)
1. The dustproof flange gas gate valve comprises a valve body (1), a valve cover (2) and a protective gland (3) which are sequentially connected from bottom to top, wherein a valve rod (11) is longitudinally arranged at the center position inside the valve body (1); a thrust ring (15) which is sleeved on the valve rod (11) and used for limiting the push-up position of the valve rod (11) is arranged in the valve cover (2); the top end of the valve rod (11) penetrates through the protective gland (3) and is connected with a rotating hand wheel (12); sleeve pipes (4) communicated with the inner cavity of the valve body (1) are transversely arranged on the left side and the right side of the valve body (1), and connecting flanges (24) are respectively arranged at the left end and the right end of each sleeve pipe (4); the method is characterized in that: the bottom end of the valve rod (11) is in threaded fit with a gate plate (10) capable of lifting, two ends of the inner side wall of the valve body (1) are respectively provided with a guide groove (20), and the side wall of the gate plate (10) is provided with a guide convex block (19) which is matched with the guide groove (20) to slide; an annular sealing bulge (14) is sleeved on the valve rod (11) below the thrust ring (15), a rubber convex ring (18) matched and sealed with the annular sealing bulge (14) when the gate valve is fully opened is fixedly arranged at the top end of the gate plate (10), and a sealing groove (5) matched with the rubber convex ring (18) when the gate valve is fully opened is formed in the valve cover (2).
2. The dust-protected flange gas gate valve of claim 1, wherein: the middle of the gate plate (10) is a ductile iron plate body which is not easy to deform, the outer surface of the ductile iron plate body is wrapped with a rubber layer for sealing, and two side edges of the outer circumference of the gate plate (10) are annularly provided with side sealing structures which are matched with the valve body (1) and provided with protrusions.
3. The dust-protected flange gas gate valve of claim 1, wherein: the valve plate (10) is provided with a through hole for the valve rod (11) to pass through, and a valve plate nut (13) which is in threaded fit with the valve rod (11) is arranged inside the valve plate (10).
4. The dust-protected flange gas gate valve of claim 1, wherein: and a first O-shaped ring sealing sleeve (16) which is sleeved on the valve rod (11) and used for preventing the valve rod (11) from air leakage is arranged in the valve cover (2) above the thrust ring (15).
5. The dust-protected flange gas gate valve of claim 4, wherein: and the bottom end in the protection gland (3) is provided with a second O-shaped ring sealing sleeve (17) which is sleeved on the valve rod (11) and used for preventing the valve rod (11) from leaking air.
6. The dust-protected flange gas gate valve of claim 1, wherein: and a valve position indicating gauge (8) for indicating the opening and closing state of the valve is arranged on the protective gland (3).
7. The dust-protected flange gas gate valve of claim 1, wherein: the bottom end of the valve cover (2) is integrally connected with an upper flange (21), the top end of the valve body (1) is integrally connected with a lower flange (22), the lower flange (22) is provided with a plurality of threaded blind holes, the upper flange (21) is provided with a plurality of threaded holes corresponding to the threaded blind holes, and the upper flange (21) and the lower flange (22) are fixed through hexagon socket head cap counter bore bolts (23) respectively matched with the threaded holes and the threaded blind holes.
8. The dust-protected flange gas gate valve of claim 7, wherein: and a dustproof plug is arranged at the top cover of the inner hexagonal counter bore bolt (23).
9. The dust-protected flange gas gate valve of claim 7, wherein: and a flange gasket (25) which can enable the inner hexagonal counterbore bolt (23) to penetrate through is arranged between the upper flange (21) and the lower flange (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023301050.3U CN214305377U (en) | 2020-12-31 | 2020-12-31 | Dustproof flange gas gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023301050.3U CN214305377U (en) | 2020-12-31 | 2020-12-31 | Dustproof flange gas gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214305377U true CN214305377U (en) | 2021-09-28 |
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ID=77820167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023301050.3U Active CN214305377U (en) | 2020-12-31 | 2020-12-31 | Dustproof flange gas gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214305377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432825A (en) * | 2023-12-19 | 2024-01-23 | 福建耐源阀门有限公司 | Soft sealing gate valve |
-
2020
- 2020-12-31 CN CN202023301050.3U patent/CN214305377U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432825A (en) * | 2023-12-19 | 2024-01-23 | 福建耐源阀门有限公司 | Soft sealing gate valve |
| CN117432825B (en) * | 2023-12-19 | 2024-03-12 | 福建耐源阀门有限公司 | Soft sealing gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 253500 east of Yingbin street and north of Huifeng Road, economic development zone, Lingcheng District, De Zhou City, Shandong Province Patentee after: Guotaitong Energy Equipment Group Co.,Ltd. Address before: 061600 Chengdong hezhuangdi, Dongguang County, Cangzhou City, Hebei Province Patentee before: GUOTAITONG ENERGY EQUIPMENT Co.,Ltd. |
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| CP03 | Change of name, title or address |