CN220551522U - Gate valve capable of preventing valve rod from blowing out - Google Patents
Gate valve capable of preventing valve rod from blowing out Download PDFInfo
- Publication number
- CN220551522U CN220551522U CN202322339734.XU CN202322339734U CN220551522U CN 220551522 U CN220551522 U CN 220551522U CN 202322339734 U CN202322339734 U CN 202322339734U CN 220551522 U CN220551522 U CN 220551522U
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- valve
- valve rod
- rod
- connecting frame
- preventing
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- 238000007664 blowing Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000002265 prevention Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Sliding Valves (AREA)
Abstract
The utility model provides a gate valve capable of preventing a valve rod from blowing out. The gate valve capable of preventing the valve rod from blowing out comprises: the valve body, install the casing on the valve body, the valve gap is installed at the top of casing, slidable mounting has the valve plate in the casing, install the valve rod on the valve gap, the top of valve rod sets up to the prismatic table structure, the top fixed mounting of valve plate has the nut, fixed cover is equipped with the bulge loop on the valve rod, circular piece is installed through first bolt on the top of valve rod, fixed mounting has the hand wheel on the circular piece, be provided with three first sealing washer in the connecting hole of valve rod and valve gap. The gate valve capable of preventing the valve rod from blowing out has the advantages that the valve rod sealing ring can be replaced under the condition of pressure, the potential safety hazard caused by valve rod blowing out due to improper operation is avoided, and the safety and reliability of the valve are improved.
Description
Technical Field
The utility model belongs to the technical field of gate valves, and particularly relates to a gate valve capable of preventing a valve rod from blowing out.
Background
Nowadays, the hidden rod soft sealing gate valve is widely applied to pipelines in industries such as petroleum, chemical industry, pharmacy, metallurgy, electric power, urban water supply and drainage and the like, is used for controlling medium circulation and cutoff of the pipelines, and is one of the most widely applied valves in various fluid conveying engineering. Is suitable for various mediums such as sewage, raw water, clear water, oil products and the like, and is not limited by the flow direction of the mediums. The common blind rod soft sealing gate valve generally comprises a valve body, a valve cover, a gate plate, a valve rod, a sealing ring, a gate plate nut, a hand wheel and the like.
In actual use, leakage at the joint of the valve rod and the valve cover sometimes occurs, if medium delivery is interrupted for maintenance, inconvenience is brought to production and life, the current gate valve product has no blowout prevention function, and when the valve is maintained on line under pressure, accidents of personal injury can be possibly brought due to improper operation. Meanwhile, the structure of the part of the current product is complex, which is not beneficial to saving the cost and is easy to cause problems in the production and use processes.
Accordingly, there is a need to provide a new gate valve that prevents the blow out of the valve stem.
Disclosure of Invention
The utility model solves the technical problem of providing the gate valve capable of preventing the valve rod from being blown out, which can be used for replacing the valve rod sealing ring under the condition of pressure, avoiding potential safety hazard caused by valve rod blowing out due to improper operation and improving the safety and reliability of the valve.
In order to solve the technical problems, the gate valve capable of preventing the valve rod from being blown out provided by the utility model comprises: the valve body, install the casing on the valve body, the valve gap is installed at the top of casing, slidable mounting has the valve plate in the casing, install the valve rod on the valve gap, the top of valve rod sets up to the prismatic table structure, the top fixed mounting of valve plate has the nut, fixed cover is equipped with the bulge loop on the valve rod, circular piece is installed through first bolt on the top of valve rod, fixed mounting has the hand wheel on the circular piece, be provided with three first sealing washer in the connecting hole of valve rod and valve gap.
As a further scheme of the utility model, two connecting flanges are fixedly sleeved on the valve body, and a plurality of circular mounting holes are formed in the two connecting flanges.
As a further scheme of the utility model, an upper connecting frame is arranged on the valve cover, a lower connecting frame is arranged on the shell, and the upper connecting frame and the lower connecting frame are connected through a plurality of second bolts.
As a further scheme of the utility model, two strip-shaped limiting blocks are fixedly arranged on the inner walls of the two sides of the shell, and the valve plate is positioned between the four strip-shaped limiting blocks and is in sliding connection with the strip-shaped limiting blocks.
As a further scheme of the utility model, a second sealing ring is arranged at the joint of the upper connecting frame and the lower connecting frame.
As a further scheme of the utility model, an external thread is arranged on the valve rod, the valve rod penetrates through the nut and is in threaded connection with the nut through the external thread, a circular groove is arranged on the valve plate, and the bottom end of the external thread extends into the circular groove.
Compared with the related art, the gate valve capable of preventing the valve rod from being blown out has the following beneficial effects:
1. according to the utility model, the convex ring is arranged, so that the valve rod is prevented from being blown out when the first sealing ring is replaced, and safety accidents are avoided;
2. according to the utility model, the first sealing ring and the second sealing ring are arranged, so that the gate valve can be sealed, and leakage is avoided.
Drawings
The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic perspective view of a gate valve capable of preventing a valve rod from blowing out;
FIG. 2 is a schematic elevational cross-sectional view of a gate valve of the present utility model which prevents blow-out of a valve stem;
FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;
fig. 4 is a schematic view of a partial side cross-sectional structure of the present utility model.
In the figure: 1. a valve body; 2. a housing; 3. a valve cover; 4. a valve plate; 5. a valve stem; 6. a nut; 7. a convex ring; 8. a circular block; 9. a first bolt; 10. a hand wheel; 11. a first seal ring; 12. a connecting flange; 13. an upper connecting frame; 14. a lower connecting frame; 15. a second bolt; 16. a bar-shaped limiting block; 17. a second seal ring; 18. an external thread; 19. circular grooves.
Detailed Description
Referring to fig. 1 to 4, fig. 1 is a schematic perspective view of a gate valve capable of preventing a valve rod from blowing out according to the present utility model; FIG. 2 is a schematic elevational cross-sectional view of a gate valve of the present utility model which prevents blow-out of a valve stem; FIG. 3 is an enlarged schematic view of the portion A in FIG. 2; fig. 4 is a schematic view of a partial side cross-sectional structure of the present utility model. Gate valve that can prevent valve rod blowout includes: the valve comprises a valve body 1, wherein a casing 2 is arranged on the valve body 1, a valve cover 3 is arranged at the top of the casing 2, a valve plate 4 is slidably arranged in the casing 2, a valve rod 5 is arranged on the valve cover 3, the top end of the valve rod 5 is arranged to be of a prismatic table structure, a nut 6 is fixedly arranged at the top of the valve plate 4, a convex ring 7 is fixedly sleeved on the valve rod 5, a round block 8 is arranged at the top end of the valve rod 5 through a first bolt 9, a hand wheel 10 is fixedly arranged on the round block 8, and three first sealing rings 11 are arranged in connecting holes between the valve rod 5 and the valve cover 3.
As shown in fig. 1, two connecting flanges 12 are fixedly sleeved on the valve body 1, and a plurality of circular mounting holes are formed in each connecting flange 12.
As shown in fig. 1 and 2, the upper connection frame 13 is mounted on the valve cover 3, the lower connection frame 14 is mounted on the housing 2, and the upper connection frame 13 and the lower connection frame 14 are connected by a plurality of second bolts 15.
As shown in fig. 2, two bar-shaped limiting blocks 16 are fixedly mounted on the inner walls of two sides of the housing 2, and the valve plate 4 is located between the four bar-shaped limiting blocks 16 and is slidably connected with the bar-shaped limiting blocks 16.
As shown in fig. 2, a second sealing ring 17 is disposed at the connection position of the upper connection frame 13 and the lower connection frame 14.
As shown in fig. 4, the valve rod 5 is provided with an external thread 18, the valve rod 5 penetrates through the nut 6 and is in threaded connection with the nut 6 through the external thread 18, the valve plate 4 is provided with a circular groove 19, and the bottom end of the external thread 18 extends into the circular groove 19.
The working principle of the gate valve capable of preventing the valve rod from blowing out is as follows:
in the use, if the junction of valve gap 3 and valve rod 5 appears revealing, then indicate that first sealing washer 11 appears wearing and tearing, need change it, rotate first bolt 9 this moment, dismantle circular block 8 and hand wheel 10, take down the upper and lower twice first sealing washer 11 this moment, change it, it can with circular block 8 and hand wheel 10 dress afterwards to when the first sealing washer 11 of area pressure change, bulge loop 7 can prevent that valve rod 5 from blowing out, leads to appearing the incident.
It should be noted that, the device structure and the drawings of the present utility model mainly describe the principle of the present utility model, in terms of the technology of the design principle, the arrangement of the power mechanism, the power supply system, the control system, etc. of the device is not completely described, and on the premise that the person skilled in the art understands the principle of the present utility model, the specific details of the power mechanism, the power supply system and the control system can be clearly known, the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;
the standard parts used in the method can be purchased from the market, and can be customized according to the description of the specification and the drawings, the specific connection modes of the parts are conventional means such as mature bolts, rivets and welding in the prior art, the machines, the parts and the equipment are conventional models in the prior art, and the structures and the principles of the parts are all known by the skilled person through technical manuals or through conventional experimental methods.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents, and in other related technical fields, which are equally encompassed by the scope of the present utility model.
Claims (6)
1. A gate valve capable of preventing a valve stem from blowing out, comprising:
the valve body, install the casing on the valve body, the valve gap is installed at the top of casing, slidable mounting has the valve plate in the casing, install the valve rod on the valve gap, the top of valve rod sets up to the prismatic table structure, the top fixed mounting of valve plate has the nut, fixed cover is equipped with the bulge loop on the valve rod, circular piece is installed through first bolt on the top of valve rod, fixed mounting has the hand wheel on the circular piece, be provided with three first sealing washer in the connecting hole of valve rod and valve gap.
2. The valve stem blowout prevention gate valve according to claim 1, wherein: the valve body is fixedly sleeved with two connecting flanges, and a plurality of circular mounting holes are formed in the two connecting flanges.
3. The valve stem blowout prevention gate valve according to claim 1, wherein: the valve cover is provided with an upper connecting frame, the shell is provided with a lower connecting frame, and the upper connecting frame and the lower connecting frame are connected through a plurality of second bolts.
4. The valve stem blowout prevention gate valve according to claim 1, wherein: two bar-shaped limiting blocks are fixedly mounted on the inner walls of the two sides of the shell, and the valve plate is located between the four bar-shaped limiting blocks and is in sliding connection with the bar-shaped limiting blocks.
5. A gate valve capable of preventing blowout of a valve stem as set forth in claim 3, wherein: and a second sealing ring is arranged at the joint of the upper connecting frame and the lower connecting frame.
6. The valve stem blowout prevention gate valve according to claim 1, wherein: the valve rod is provided with external threads, the valve rod penetrates through the nut and is in threaded connection with the nut through the external threads, the valve plate is provided with a circular groove, and the bottom end of the external threads extends into the circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322339734.XU CN220551522U (en) | 2023-08-30 | 2023-08-30 | Gate valve capable of preventing valve rod from blowing out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322339734.XU CN220551522U (en) | 2023-08-30 | 2023-08-30 | Gate valve capable of preventing valve rod from blowing out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220551522U true CN220551522U (en) | 2024-03-01 |
Family
ID=90004036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322339734.XU Active CN220551522U (en) | 2023-08-30 | 2023-08-30 | Gate valve capable of preventing valve rod from blowing out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220551522U (en) |
-
2023
- 2023-08-30 CN CN202322339734.XU patent/CN220551522U/en active Active
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