CN212745442U - Valve flange connecting device - Google Patents
Valve flange connecting device Download PDFInfo
- Publication number
- CN212745442U CN212745442U CN202021373806.2U CN202021373806U CN212745442U CN 212745442 U CN212745442 U CN 212745442U CN 202021373806 U CN202021373806 U CN 202021373806U CN 212745442 U CN212745442 U CN 212745442U
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- Prior art keywords
- flange
- screw rod
- screw
- hole
- upper flange
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- 239000000077 insect repellent Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of production and manufacturing, and discloses a valve flange connecting device, which comprises an upper flange and a lower flange, wherein the lower surface of the upper flange is provided with a first cylinder body fixedly connected with the upper surface of a gasket groove lower flange, the upper flange is connected with the lower flange through a first screw thread, a fastening device is arranged between the upper flange and the lower flange, two upper flanges and two lower flanges are driven to be close to each other through the rotation of a first screw in a through hole on the upper flange and the lower flange, a first screw rotated out from the first screw in the through hole of the lower flange is meshed with an inclined tooth of a second screw to rotate the second screw, a third screw rotates according to the same principle, when the upper flange is close to the lower flange and the third screw is contacted with the ring and starts to be in threaded connection, the top thread of the third screw can downwards pull the ring to synchronously downwards move, the ring drives a first plate body to downwards move, and the upper flange is extruded downwards by, the upper flange and the lower flange are fastened, and the reaction force borne by the screw is reduced.
Description
Technical Field
The utility model relates to a manufacturing technical field specifically is a valve flange connecting device.
Background
The flange is as the important part of being connected between pipeline and the pipeline, when the transportation is the high-temperature high-pressure material between the pipeline, need bear huge reaction force between two flanges, traditional flange is fixed to pass through bolt and nut fastening, huge reaction force very easily makes fastening bolt fracture, there is latent crisis, and sealed gasket between the current flange is a ring, gasket under the high-pressure environment this moment in case break can cause huge loss, and the sealing washer in case break just need be changed, elasticity flange bolt relapse has reduced its life, so the fastener and the sealed improvement to current flange need not to be improved.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a valve flange connecting device possesses to connect fastening and sealed advantage such as good, has solved the problem that flange fastening bolt fracture and sealed need frequently to be changed.
(II) technical scheme
For the good mesh of above-mentioned connection fastening and sealing of realization, the utility model provides a following technical scheme: the utility model provides a valve flange connecting device, includes upper flange and lower flange, last flange is last to have seted up through-hole one, set up internal thread in the through-hole one, the lower surface of upper flange has seted up through-hole two, and the gasket groove has been seted up to the lower surface of upper flange, set up the same through-hole one with the same mode on the lower flange, the last fixed surface of lower flange is connected with cylinder one, and upper flange and lower flange pass through screw rod threaded connection, still are provided with fastener between upper flange and the lower flange.
Preferably, the bottom view of the gasket groove is clockwise mosquito-repellent incense shape, the transverse section of the gasket groove is semicircular, the gasket groove is three circles, a first baffle is fixedly connected between the first circle of gasket groove and the second circle of gasket groove, and a second baffle is fixedly connected between the first circle of gasket groove and the second circle of gasket groove.
Preferably, the first column is cylindrical, and the height of the first column is one third of the thickness of the lower flange.
Preferably, the height of the second through hole is one third of the thickness of the upper flange, the transverse section of the second through hole is funnel-shaped, the diameter of the upper part of the second through hole is matched with the size of the first cylinder, and the size of the lower half part of the second through hole is one half and five times of the diameter of the first cylinder.
Preferably, the fastening device comprises a screw rod II, a screw rod III, a circular ring and a rod body I, the screw rod II is rotatably connected with the bottom surface of the lower flange, one end of the screw rod II is meshed with the screw rod I, the other end of the screw rod II is meshed with the lower end of the screw rod III, the upper end of the screw rod III is in threaded connection with the circular ring, the outer surface of the circular ring is fixedly connected with the rod body I, and the rod body I is fixedly connected with the upper surface of the upper flange;
one end of the second screw is provided with inclined teeth, the tooth clearance on the second screw is equal to the thread clearance of the first screw, the other end of the second screw is provided with threads the same as those on the first screw, one end of the third screw is provided with inclined teeth the same as those on the second screw, the other end of the third screw is provided with threads the same as those on the first screw, one end of the second screw, provided with inclined teeth, is meshed with the threads of the first screw, and one end of the second screw, provided with threads, is meshed with one end of the third screw, provided with inclined teeth.
Preferably, the first baffle and the second baffle are the same in size, the heights of the first baffle and the second baffle are equal to the diameter of the gasket groove, and the widths of the first baffle and the second baffle are equal to the diameter of the gasket groove (III)
Compared with the prior art, the utility model provides a valve flange connecting device possesses following beneficial effect:
1. the valve flange connecting device drives the two upper flanges and the two lower flanges to be close to each other through rotation of the screw rod I in the through hole I on the upper flange and the lower flange, the screw rod I which rotates out of the through hole I on the lower flange is meshed with the inclined teeth of the screw rod II, the screw thread clockwise stirs the inclined teeth to enable the screw rod II to rotate, the screw rod III rotates according to the same principle, when the upper flange and the lower flange are close to each other, the screw rod III is contacted with the circular ring and starts threaded connection, the top end screw thread of the screw rod III can downwards pull the circular ring to synchronously move downwards, the circular ring drives the plate body I to move downwards, the plate body downwards extrudes the upper flange, the upper flange and the lower flange are fastened, and the reaction force borne by the screw rod is reduced.
2. This valve flange connecting device blocks whole mosquito-repellent incense form gasket through baffle one and baffle dual-purpose, and when one section gasket was damaged, remaining two circles can continue to guarantee the leakproofness between flange and the lower flange, reduces the change frequency of gasket, extension flange bolt and gasket life.
3. This valve flange connecting device, through the sliding connection of cylinder two and through-hole two of lower flange upper surface fixed connection, when two flanges aim at the installation, cylinder two gets into earlier than cylinder two big lower part through-hole two of diameter in, accomplishes preliminary location and aims at, and it is more convenient when going up flange and lower flange installation to slide to accomplish accurate location in the upper portion with two big or small adaptations of cylinder.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the cross-sectional structure of the present invention;
fig. 3 is a schematic view of the upper flange of the present invention.
In the figure: 1. an upper flange; 2. a first through hole; 3. a first screw rod; 4. a gasket groove; 5. a lower flange; 6. a second screw; 7. a third screw; 8. a first rod body; 10. a circular ring; 11. a cylinder; 12. a second through hole; 13. a first baffle plate; 14. and a second baffle plate.
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. 1-3, a valve flange connecting device includes an upper flange 1 and a lower flange 5, the upper flange 1 is provided with a first through hole 2, the first through hole 2 is internally provided with an internal thread, the lower surface of the upper flange 1 is provided with a second through hole 12, the lower surface of the upper flange 1 is provided with a gasket groove 4, the lower flange 1 is provided with the same first through hole 2 in the same manner, the upper surface of the lower flange 5 is fixedly connected with a first column 11, the upper flange 1 and the lower flange 5 are connected through a first screw 3, and a fastening device is further arranged between the upper flange 1 and the lower flange 5.
The first column body 11 is cylindrical, and the height of the first column body 11 is one third of the thickness of the lower flange 5.
The height of through-hole two 12 is the third of upper flange thickness, the transverse section of through-hole two 12 is for leaking hopper-shaped, the upper portion diameter and the cylinder one 11 size adaptation of through-hole two 12, the latter half size of through-hole two 12 is one point five times of cylinder one 11 diameter, cylinder two 11 through 5 upper surface fixed connection of lower flange and through-hole two 12's sliding connection, when two flanges aim at the installation, cylinder two 11 gets into earlier than cylinder two 11 diameter big lower part through-hole two 12 in, accomplish preliminary location and aim at, it accomplishes accurate location in the upper portion that slides to with cylinder two 11 size adaptations, it is more convenient when upper flange 1 and lower flange 5 install.
The fastening device comprises a second screw 6, a third screw 7, a ring 10 and a first rod body 8, the second screw 6 is rotatably connected with the bottom surface of the lower flange 5, one end of the second screw 6 is meshed with the first screw 3, the other end of the second screw 6 is meshed with the lower end of the third screw 7, the upper end of the third screw 7 is in threaded connection with the ring 10, the outer surface of the ring 10 is fixedly connected with the first rod body 8, and the first rod body 8 is fixedly connected with the upper surface of the upper flange 1;
one end of the second screw 6 is provided with inclined teeth, the tooth clearance on the second screw 6 is equal to the thread clearance of the first screw 3, the other end of the second screw 6 is provided with threads the same as those on the first screw 3, one end of the third screw 7 is provided with inclined teeth the same as those on the second screw 6, the other end of the third screw 7 is provided with threads the same as those on the first screw 3, one end of the second screw 6 provided with inclined teeth is meshed with the threads of the first screw 3, one end of the second screw 6 provided with threads is meshed with one end of the third screw 7 provided with inclined teeth, the first screw 3 rotates in through holes I2 on the upper flange 1 and the lower flange 5 to drive the two upper flanges 1 and the lower flange 5 to approach each other, the first screw 3 which rotates out of a through hole I2 on the lower flange 5 is meshed with the inclined teeth of the second screw 6, the inclined teeth are stirred by the threads to rotate the second screw 6 clockwise, and the third screw 7 rotates on the same principle, when the upper flange 1 and the lower flange 5 are close to each other, the third screw 7 is in contact with the circular ring 10 and starts to be in threaded connection, the top threads of the third screw 7 can pull the circular ring 10 downwards to synchronously move downwards, the circular ring 10 drives the first plate body 8 to move downwards, and the first plate body 8 downwards presses the upper flange 1, so that the upper flange 1 and the lower flange 5 are fastened more tightly.
The first baffle 14 and the second baffle 13 are the same in size, the first baffle 14 and the second baffle 13 are equal in height to the diameter of the gasket groove 4, the first baffle 14 and the second baffle 13 are equal in width to the diameter of the gasket groove 4, the first baffle 14 and the second baffle 13 are used for blocking the whole mosquito-repellent incense-shaped gasket, when one section of gasket is damaged, the remaining two rings can continuously ensure the sealing performance between the upper flange and the lower flange 5, the replacement frequency of the gasket is reduced, and the service lives of the flange bolts and the gasket are prolonged.
When the sealing device is used, the first screw 3 rotates in the first through hole 2 to drive the upper flange 1 and the lower flange 5 to approach, the second cylinder 11 approaches the second through hole 12, the first through holes 2 of the two flanges are aligned to complete positioning, when the first screw 3 rotates to the outside of the first through hole 2 of the lower flange 5, the first screw 3 is meshed with the second screw 6 to drive the second screw 6 to rotate, the second screw 6 drives the third screw 7 to rotate, the third rotating screw 7 pulls the ring 10 to move downwards, the ring 10 pulls the first plate body 8 Cai, the upper flange 1 and the lower flange 5 are attached tightly, and the gasket in the gasket groove 4 of the upper flange 1 enables the upper flange and the lower flange 5 to be sealed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a valve flange connecting device, includes upper flange (1) and lower flange (5), its characterized in that: the upper flange is characterized in that a first through hole (2) is formed in the upper flange (1), an inner thread is formed in the first through hole (2), a second through hole (12) is formed in the lower surface of the upper flange (1), a gasket groove (4) is formed in the lower surface of the upper flange (1), the same first through hole (2) is formed in the lower flange (5) in the same mode, a first cylinder (11) is fixedly connected to the upper surface of the lower flange (5), the upper flange (1) and the lower flange (5) are in threaded connection through a first screw rod (3), and a fastening device is further arranged between the upper flange (1) and the lower flange (5).
2. A valve flange connection according to claim 1, wherein: the gasket groove (4) is the clockwise mosquito-repellent incense shape of looking down, and the transverse section in gasket groove (4) is the semicircle, gasket groove (4) are three circles, fixedly connected with baffle (14) between first circle gasket groove (4) and the second circle gasket groove (4), and fixedly connected with baffle two (13) between first circle gasket groove (4) and the second circle gasket groove (4).
3. A valve flange connection according to claim 1, wherein: the first column body (11) is cylindrical, and the height of the first column body (11) is one third of the thickness of the lower flange (5).
4. A valve flange connection according to claim 1, wherein: the height of the second through hole (12) is one third of the thickness of the upper flange (1), the transverse section of the second through hole (12) is funnel-shaped, the diameter of the upper part of the second through hole (12) is matched with the size of the first column body (11), and the size of the lower half part of the second through hole (12) is one point five times of the diameter of the first column body (11).
5. A valve flange connection according to claim 1, wherein: the fastening device comprises a second screw rod (6), a third screw rod (7), a circular ring (10) and a first rod body (8), the second screw rod (6) is rotatably connected with the bottom surface of the lower flange (5), one end of the second screw rod (6) is meshed with the first screw rod (3), the other end of the second screw rod (6) is meshed with the lower end of the third screw rod (7), the upper end of the third screw rod (7) is in threaded connection with the circular ring (10), the outer surface of the circular ring (10) is fixedly connected with the first rod body (8), and the first rod body (8) is fixedly connected with the upper surface of the upper flange (1);
inclined teeth are formed in one end of the second screw rod (6), tooth gaps in the second screw rod (6) are equal to thread gaps in the first screw rod (3), the other end of the second screw rod (6) is provided with threads identical to those in the first screw rod (3), inclined teeth identical to the second screw rod (6) are formed in one end of the third screw rod (7), threads identical to the first screw rod (3) are formed in the other end of the third screw rod (7), one end, provided with the inclined teeth, of the second screw rod (6) is meshed with the threads of the first screw rod (3), and one end, provided with the threads, of the second screw rod (6) is meshed with one end, provided with the inclined teeth, of the third screw rod (7).
6. A valve flange connection according to claim 2, wherein: the first baffle (14) and the second baffle (13) are the same in size, the heights of the first baffle (14) and the second baffle (13) are equal to the diameter of the gasket groove (4), and the widths of the first baffle (14) and the second baffle (13) are equal to the diameter of the gasket groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021373806.2U CN212745442U (en) | 2020-07-14 | 2020-07-14 | Valve flange connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021373806.2U CN212745442U (en) | 2020-07-14 | 2020-07-14 | Valve flange connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212745442U true CN212745442U (en) | 2021-03-19 |
Family
ID=75022511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021373806.2U Expired - Fee Related CN212745442U (en) | 2020-07-14 | 2020-07-14 | Valve flange connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212745442U (en) |
-
2020
- 2020-07-14 CN CN202021373806.2U patent/CN212745442U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |