CN214248642U - Multi-sealing corrosion-resistant pipeline expansion piece - Google Patents
Multi-sealing corrosion-resistant pipeline expansion piece Download PDFInfo
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- CN214248642U CN214248642U CN202120115348.0U CN202120115348U CN214248642U CN 214248642 U CN214248642 U CN 214248642U CN 202120115348 U CN202120115348 U CN 202120115348U CN 214248642 U CN214248642 U CN 214248642U
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Abstract
The utility model relates to a multiple sealed corrosion-resistant pipeline expansion bend, include: the sealing ring comprises a flange, an inner pipe, a screw rod, an outer pipe, an inner liner and a sealing ring; the first flange is arranged at the outer end of the inner pipe, the other end of the inner pipe is inserted into the second flange, a plurality of grooves are formed in the inner side of the second flange, sealing rings are arranged in the grooves, the second flange is arranged at one end of the outer pipe, a boss is arranged at the other end of the outer pipe, the third flange is arranged on the inner side of the boss of the outer pipe and can move, inner liners are arranged on the inner wall of the inner pipe and the outer end face of the first flange, and inner liners are arranged on the inner wall of the outer pipe and the outer end face of the boss; a plurality of screw rods are uniformly arranged on the first flange, the screw rods penetrate through the second flange, and the other ends of the screw rods are fixed by nuts; the first flange is uniformly provided with a plurality of through holes, and the first flange and the third flange are connected with flanges of pipelines at two ends; the utility model discloses, simple structure, simple to operate uses extensively, and is sealed reliable, long service life.
Description
Technical Field
The utility model relates to a pipeline erection equipment technical field, specific corrosion-resistant pipeline expansion bend of multiple seal that says so.
Background
The pipeline expansion piece is a common device in fluid transportation, and is widely applied to the fields of municipal administration, mines, petroleum and the like. Especially when the distance of the pipeline is long, the temperature difference between the conveyed medium and day and night is large, the valves and pipes in the pipeline are frequently disassembled, and the noise or vibration in the pipeline is large.
The pipeline expansion piece in the prior art is complex in structure and difficult to disassemble and maintain. The inner sealing device is fixed in the inner sealing groove by two middle flanges and a short joint, the two flanges are connected by bolts, and when the bolts are fastened, the torsion is not uniform, so that the inner sealing device is directly acted, the sealing device is easy to damage, and the disassembly and the maintenance are inconvenient; when the pH value of the pipeline conveying medium is higher and the corrosion is stronger, or the medium contains excessive particles, the service life of the pipeline expansion piece is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a multiple-sealing corrosion-resistant pipeline expansion piece.
The multiple seal corrosion resistant pipe expander comprises: the sealing ring comprises a flange, an inner pipe, a screw rod, an outer pipe, an inner liner and a sealing ring; the flange is divided into three parts, namely a first flange, a second flange and a third flange, wherein the first flange is arranged at the outer end of the inner pipe, the other end of the inner pipe is inserted into the second flange, the inner side of the second flange is provided with a plurality of grooves, sealing rings are arranged in the grooves, the second flange is arranged at one end of the outer pipe, the other end of the outer pipe is provided with a boss, the third flange is arranged at the inner side of the boss of the outer pipe, and the third flange can move; the inner wall of the inner pipe and the outer end face of the first flange are provided with lining layers, and the inner wall of the outer pipe and the outer end face of the boss are provided with lining layers; a plurality of screw rods are uniformly arranged on the first flange, the screw rods penetrate through the second flange, and the other ends of the screw rods are fixed by nuts; the first flange is evenly provided with a plurality of through holes in the screw rod gap, and the first flange and the third flange are connected with the flanges of pipelines at two ends.
Preferably, the middle section of the outer pipe is subjected to diameter changing, the large-diameter end is connected with a second flange, the small-diameter end is provided with a boss, and the first flange and the third flange are the same in installation size; or the first flange is larger than the third flange to form variable diameter.
Preferably, the middle section of the outer pipe is reduced, the small-diameter end is connected with the second flange, the large-diameter end is provided with a boss, and the first flange is smaller than the third flange to form the reducing.
Preferably, a plurality of threaded holes are uniformly formed in the first flange, the screw rods are fixed in the threaded holes and do not exceed the outer end face of the first flange, the screw rods penetrate through the second flange, and the other end of the screw rods is fixed by nuts; the through holes are uniformly arranged in the gaps of the threaded holes.
Preferably, a plurality of counter bores are uniformly formed in the first flange, the screw is changed into an inner hexagon bolt, a cylindrical head of the inner hexagon bolt is arranged in the counter bores, the screw penetrates through the second flange, and the other end of the screw is fixed by a nut; the through holes are uniformly arranged in the gaps of the counter bores.
Preferably, the number of the nuts for fixing the screw rod is two, so that the nut is prevented from loosening.
Preferably, three grooves are formed in the inner side of the second flange, and the first weight is an O-shaped sealing rubber ring from the outer end; the second layer is a Y-shaped sealing rubber ring, so that a medium can be effectively stored in the Y-shaped groove, and when the pressure in the pipeline is increased, the Y-shaped groove can be expanded, so that the sealing performance is better; the third is a rectangular sealing rubber ring with a metal framework.
The utility model relates to a multiple seal corrosion-resistant pipeline expansion piece, the sealing ring is arranged at the inner side of the second flange, and the sealing element fixing flanges used by the conventional structure are reduced; the problem of sealing failure is solved by adopting multiple sealing rings; the third flange can be rotatably adjusted according to the position of a flange hole on the pipeline during installation; the connecting device can be used for connecting equal-diameter pipelines and connecting variable-diameter pipelines; the screw is arranged to control the axial displacement of the inner pipe and the outer pipe and prevent the inner pipe from separating from the second flange; the inner lining layer of the inner wall of the expansion piece plays a role in corrosion resistance and abrasion resistance. The utility model discloses, simple structure, simple to operate uses extensively, and is sealed reliable, long service life.
Drawings
Fig. 1 is a schematic view of the multi-seal corrosion-resistant pipe expander of the present invention.
Fig. 2 is a side view of the embodiment of the present invention.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a side view of the embodiment of the present invention.
Fig. 5 is a sectional view taken along line B-B of fig. 4.
Fig. 6 is an enlarged view of a portion a in fig. 3.
In the figure: 1. a first flange; 1-1, a threaded hole; 1-2, through holes; 1-3, counter bores; 2. an inner tube; 3. a screw; 4. a second flange; 4-1, a first sealing ring; 4-2, a second sealing ring; 4-3, a third sealing ring; 5. a nut; 6. an outer tube; 6-1, boss; 7. a third flange; 8. an inner liner.
Detailed Description
The technical solution in the embodiment of the present invention is described below with reference to the drawings in the embodiment of the present invention.
As shown in fig. 1, 2 and 3, in the multiple-seal corrosion-resistant pipeline expansion piece, a first flange 1 is arranged at the outer end of an inner pipe 2, the other end of the inner pipe 2 is inserted into a second flange 4, a plurality of grooves are formed in the inner side of the second flange 4, seal rings are arranged in the grooves, the middle section of the outer pipe 6 is subjected to diameter change, a large-diameter end is connected with the second flange 4, a small-diameter end is provided with a boss 6-1, a third flange 7 is arranged on the inner side of the boss 6-1, and the third flange 7 is movable; the inner wall of the inner pipe 2 and the outer end face of the first flange 1 are provided with lining layers 8, and the inner wall of the outer pipe 6 and the outer end face of the boss 6-1 are provided with lining layers 8; a plurality of threaded holes 1-1 are uniformly formed in the first flange 1, the screw rods 3 are fixed in the threaded holes 1-1, the screw rods 3 penetrate through the second flange 4, the other end of each screw rod is fixed by a nut 5, and the number of the nuts 5 is two; a plurality of through holes 1-2 are uniformly formed in the first flange 1 in the gap of the threaded hole 1-1, and the first flange 1 and the third flange 7 are identical in installation size and are respectively connected with flanges of pipelines at two ends.
As shown in fig. 4 and 5, the middle section of the outer tube 6 is reduced, the small-diameter end is connected with the second flange 4, the large-diameter end is provided with a boss 6-1, the third flange 7 is arranged on the inner side of the boss 6-1, and the first flange 1 is smaller than the third flange 7 to form reducing; a plurality of counter bores 1-3 are uniformly formed in the first flange 1, the screw 3 is an inner hexagon bolt, a cylindrical head of the inner hexagon bolt is arranged in the counter bores 1-3, the inner hexagon bolt penetrates through the second flange 4, and the other end of the inner hexagon bolt is fixed by a nut 5.
As shown in fig. 3 and 6, three grooves are formed in the inner side of the second flange 4, and the first sealing ring 4-1 is an O-shaped sealing rubber ring from the outer pipe end; the first sealing ring 4-2 is a Y-shaped sealing rubber ring, so that a medium can be effectively stored in the Y-shaped groove, and when the pressure in the pipeline is increased, the Y-shaped groove can be expanded, so that the sealing performance is better; the third sealing ring 4-3 is a rectangular sealing rubber ring with a metal framework.
Claims (7)
1. A multiple seal corrosion resistant pipe expander, comprising: the sealing ring comprises a flange, an inner pipe, a screw rod, an outer pipe, an inner liner and a sealing ring; the three flanges are respectively a first flange, a second flange and a third flange, the first flange is arranged at the outer end of the inner pipe, the other end of the inner pipe is inserted into the second flange, a plurality of grooves are formed in the inner side of the second flange, sealing rings are arranged in the grooves, the second flange is arranged at one end of the outer pipe, a boss is arranged at the other end of the outer pipe, the third flange is arranged at the inner side of the boss of the outer pipe, the third flange is movable, inner liners are arranged on the inner wall of the inner pipe and the outer end face of the first flange, and inner liners are arranged on the inner wall of the outer pipe and the outer end face of the boss; a plurality of screw rods are uniformly arranged on the first flange, the screw rods penetrate through the second flange, and the other ends of the screw rods are fixed by nuts; the first flange is evenly provided with a plurality of through holes, and the first flange and the third flange are connected with the flanges of pipelines at two ends.
2. The multiple-seal corrosion-resistant pipeline expansion piece according to claim 1, wherein the middle section of the outer pipe is provided with a reducing diameter, the large-diameter end is connected with the second flange, the small-diameter section is provided with a boss, the first flange and the third flange are the same in installation size, or the first flange is larger than the third flange to form the reducing diameter.
3. The multiple-seal corrosion-resistant pipe expander according to claim 1, wherein the intermediate section of the outer pipe is tapered, the small-diameter end is connected with the second flange, the large-diameter end is provided with a boss, and the first flange is smaller than the third flange to form the taper.
4. The multiple-seal corrosion-resistant pipeline expansion piece according to claim 1, wherein a plurality of threaded holes are uniformly formed in the first flange, the screw rods are fixed in the threaded holes and do not exceed the outer end face of the first flange, the screw rods penetrate through the second flange, and the other end of the screw rods is fixed by nuts; the through holes are uniformly arranged in the gaps of the threaded holes.
5. The multiple-seal corrosion-resistant pipeline expansion piece according to claim 1, wherein a plurality of counter bores are uniformly formed in the first flange, the screw is an inner hexagon bolt, a cylindrical head of the inner hexagon bolt is arranged in the counter bores, the inner hexagon bolt penetrates through the second flange, and the other end of the inner hexagon bolt is fixed by a nut; the through holes are uniformly arranged in the gaps of the counter bores.
6. The multiple seal corrosion resistant pipe expander of claim 1, wherein there are two nuts for said set screw.
7. The multiple-seal corrosion-resistant pipe expander according to claim 1, wherein three grooves are formed inside the second flange, and the first seal ring is an O-shaped seal rubber ring from the outer pipe end; the second sealing ring is a Y-shaped sealing rubber ring; the third sealing ring is a rectangular sealing rubber ring with a metal framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120115348.0U CN214248642U (en) | 2021-01-16 | 2021-01-16 | Multi-sealing corrosion-resistant pipeline expansion piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120115348.0U CN214248642U (en) | 2021-01-16 | 2021-01-16 | Multi-sealing corrosion-resistant pipeline expansion piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214248642U true CN214248642U (en) | 2021-09-21 |
Family
ID=77750515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120115348.0U Active CN214248642U (en) | 2021-01-16 | 2021-01-16 | Multi-sealing corrosion-resistant pipeline expansion piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214248642U (en) |
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2021
- 2021-01-16 CN CN202120115348.0U patent/CN214248642U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 253034 Shandong city in Dezhou Province Economic Development Zone, the first northbound Regent Patentee after: Jingjin Equipment Co.,Ltd. Address before: 253034 Shandong city in Dezhou Province Economic Development Zone, the first northbound Regent Patentee before: Jing Jin Environmental Protection Inc. |