CN216643388U - Novel eccentric reducing pipe - Google Patents
Novel eccentric reducing pipe Download PDFInfo
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- CN216643388U CN216643388U CN202123118090.9U CN202123118090U CN216643388U CN 216643388 U CN216643388 U CN 216643388U CN 202123118090 U CN202123118090 U CN 202123118090U CN 216643388 U CN216643388 U CN 216643388U
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- pipe
- flange
- straight pipe
- wall
- pipeline body
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- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 8
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 6
- 239000010962 carbon steel Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 14
- 210000001503 joint Anatomy 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 208000004141 microcephaly Diseases 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a novel eccentric reducing pipe which comprises a pipe body, wherein the pipe body consists of a first big-head straight pipe, a first conical pipe and a first small-head straight pipe which are arranged from left to right. According to the utility model, silicon carbide is used as the lining pipe, the wear resistance is greatly improved, the lining pipe is compressed by the compression ring in threaded connection, the later maintenance work is greatly facilitated, the pipeline body is made of carbon steel, the pipeline body is convenient to weld with the first flange and the second flange, the processing is convenient, the included angle between the right side extension line of the lower wall of the second taper pipe in the lining pipe and the axial lead of the second small-head straight pipe is smaller than the included angle between the right side extension line of the lower wall of the first taper pipe and the axial lead of the first small-head straight pipe, the original washing of the lower half water flow to the upper wall of the inner side of the second small-head straight pipe along the inclination direction of the lower wall of the second taper pipe is reduced, and the service life is prolonged.
Description
Technical Field
The utility model relates to the technical field of fire-fighting pipelines, in particular to a novel eccentric reducing pipe.
Background
Eccentric reducing pipe is a pipe fitting that is used for pipeline reducing department, be often used for being connected of suction pump and inlet tube in the fire-fighting pipeline, in order to avoid producing the air pocket phenomenon and take place the cavitation erosion harm to the internal wall of pipe, generally adopt the mode of flat top to connect, often discover in the use, rivers are followed the big head towards the microcephaly of pipe, produce great scouring force to the taper pipe, this department wearing and tearing are very fast, in addition the rivers of taper pipe department the latter half take place the diversion, dash to the inboard upper wall of microcephaly along the taper pipe lower wall, lead to this department's pipe wall also to appear wearing and tearing in advance easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a novel eccentric reducing pipe.
In order to achieve the purpose, the utility model adopts the following technical scheme: a novel eccentric reducing pipe comprises a pipe body, wherein the pipe body consists of a first big-end straight pipe, a first conical pipe and a first small-end straight pipe which are arranged from left to right;
the inner lining pipe is arranged on the inner wall of the pipeline body and used for improving the wear resistance and the impact resistance, the inner lining pipe consists of a second big-end straight pipe, a second conical pipe and a second small-end straight pipe which are arranged from left to right, and the outer wall of the inner lining pipe is matched with the inner side wall of the pipeline body; the first flange is fixedly connected to the left end of the pipeline body and used for being in butt joint with a fire pipeline, and a compression ring used for compressing the lining pipe is in threaded connection with the inner side wall of the first flange; the second flange is fixedly connected to one end, far away from the first flange, of the pipeline body and is used for being in butt joint with the water pump; the positioning ring is arranged on the opposite side of the first flange and the second flange and used for positioning; and the sealing assemblies are arranged on the inner side walls of the first flange and the second flange and used for sealing.
As a further description of the above technical solution:
the sealing assembly comprises two groups of sealing rings, and the two groups of sealing rings are respectively sleeved on the inner side walls of the first flange and the second flange and are respectively positioned at the left end of the compression ring and the right end of the lining pipe.
As a further description of the above technical solution:
the clamp ring is characterized in that external threads are arranged on the outer wall of the clamp ring, internal threads corresponding to the external threads are arranged on the inner side wall of the first flange, the clamp ring is in threaded connection with the first flange through the external threads and the internal threads, and wrench holes for inserting wrenches are formed in the side wall of the clamp ring.
As a further description of the above technical solution:
the lining pipe is made of silicon carbide, and the pipeline body is made of carbon steel.
As a further description of the above technical solution:
and the included angle between the extension line of the lower wall of the first conical pipe towards the right side and the axial lead of the first small head straight pipe is A, and the included angle between the extension line of the lower wall of the second conical pipe towards the right side and the axial lead of the second small head straight pipe is 0.8-0.9A.
As a further description of the above technical solution:
circular arc transition is arranged at the joint of the second big-end straight pipe and the lower wall at the inner side of the second taper pipe and at the joint of the second taper pipe and the lower wall at the inner side of the second small-end straight pipe.
The utility model has the following beneficial effects:
1. compared with the prior art, this novel eccentric reducing pipe through adopting carborundum as interior bushing pipe, has promoted the wear resistance of pipeline greatly, adopts threaded connection's pressing ring to compress tightly interior bushing pipe, very big has made things convenient for later maintenance work, adopts carbon steel preparation pipeline body, is convenient for with first flange, second flange welding, and processing is convenient.
2. Compared with the prior art, this novel eccentric reducing pipe, it is little than first taper pipe lower wall to the extension line on right side and the extension line of second microcephaly straight tube axial lead contained angle setting than in the interior bushing pipe second taper pipe lower wall to the right side with first microcephaly straight tube axial lead contained angle, reduced originally rivers from first flange one end entering back, the rivers of the latter half are along the washing away of the inboard upper wall of second microcephaly straight tube of the inclination direction of second taper pipe inboard lower wall, have promoted life.
Drawings
Fig. 1 is a schematic view of an overall structure of a novel eccentric reducing pipe according to the present invention;
fig. 2 is a cross-sectional view of the overall structure of a novel eccentric reducing pipe according to the present invention;
fig. 3 is a schematic structural diagram of a clamp ring of the novel eccentric reducing pipe provided by the utility model.
Illustration of the drawings:
1. a first large-head straight pipe; 2. a first taper pipe; 3. a first small-end straight tube; 4. a first flange; 5. a second flange; 6. a positioning ring; 7. a seal ring; 8. a compression ring; 9. a second large-head straight pipe; 10. a second taper pipe; 11. a second small-end straight pipe; 12. a wrench hole; 13. and (4) external threads.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a novel eccentric reducing pipe: including the pipeline body, the pipeline body material is the carbon steel, and carbon steel material easily processes, and the pipeline body comprises first major axis straight tube 1, first taper pipe 2 and first microcephaly straight tube 3 that from left to right sets up.
The lining pipe is arranged on the inner wall of the pipeline body and used for improving the wear resistance and the impact resistance, the lining pipe is made of silicon carbide, the silicon carbide is excellent in wear resistance, the lining pipe is composed of a second big-end straight pipe 9, a second taper pipe 10 and a second small-end straight pipe 11 which are arranged from left to right, and the outer wall of the lining pipe is matched with the inner side wall of the pipeline body;
fixed connection is used for first flange 4 with fire pipeline butt joint installation at pipeline body left end, 4 inside wall threaded connection of first flange have the clamp ring 8 that is used for compressing tightly interior bushing pipe, 8 outer walls of clamp ring are provided with external screw thread 13, 4 inside walls of first flange are provided with the internal thread that corresponds with external screw thread 13, clamp ring 8 is through external screw thread 13, internal thread and 4 threaded connection of first flange, 8 lateral walls of clamp ring are provided with and are used for supplying spanner male spanner hole 12, threaded connection through clamp ring 8, can compress tightly interior bushing pipe inside the pipeline body, during later maintenance, can twist off clamp ring 8 and carry out the change of interior bushing pipe.
The second flange 5 is fixedly connected to one end, far away from the first flange 4, of the pipeline body and is used for being in butt joint with the water pump; the positioning ring 6 is arranged on the opposite side of the first flange 4 and the second flange 5 and used for positioning, and the positioning ring 6 is butted with other flanges when being used for connecting a pipeline.
The setting is used for sealed seal assembly at first flange 4, 5 inside walls of second flange, and seal assembly includes two sets of sealing washer 7, and two sets of sealing washer 7 are established respectively and are established at first flange 4, 5 inside walls of second flange and are located the left end of clamp ring 8 and the right-hand member of bushing pipe respectively, insert the pipeline after, seal the leak protection through two sets of sealing washers 7.
The included angle between the extension line of the lower wall of the first conical pipe 2 to the right side and the axial lead of the first small head straight pipe 3 is A, the included angle between the extension line of the lower wall of the inner side of the second conical pipe 10 to the right side and the axial lead of the second small head straight pipe 11 is 0.8-0.9A, the joint of the lower wall of the inner side of the second conical pipe 9 and the second conical pipe 10 is the joint of the lower wall of the inner side of the second conical pipe 10 and the lower wall of the inner side of the second small head straight pipe 11, the included angle between the extension line of the lower wall of the inner side of the second conical pipe 10 and the axial lead of the second small head straight pipe 11 is reduced, the thickness of the pipe wall of the joint is actually thickened, the impact resistance is increased, meanwhile, the setting of the transition arc is matched in the change of the included angle, the scouring of the water flow of the lower half to the upper wall of the inner side of the second small head straight pipe 11 is reduced, and the service life of the whole is prolonged.
The working principle is as follows: through first flange 4 and fire-fighting pipeline butt joint installation, through second flange 5 and water pump butt joint installation, sealed leak protection effect after the installation is played to two sets of sealing washer 7, adopt the carborundum to make into interior bushing pipe, wearability through the carborundum, promote holistic wear resistance, the extension line and the 11 axial lead contained angles of the little first straight tube of second 10 inboard lower walls to the right side diminish, the thickness of this department's pipe wall has actually been the bodiness, impact resistance has been increased, and simultaneously, the setting of the change cooperation transition circular arc of contained angle, make the rivers of the latter half reduce the washing away of the inboard upper wall of the little first straight tube of second 11, whole life has been improved, clamp ring 8 is used for compressing tightly interior bushing pipe, during later maintenance, twist off clamp ring 8 can change.
Finally, it should be noted that: 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 utility model.
Claims (6)
1. The utility model provides a novel eccentric reducing pipe which characterized in that: the pipeline comprises a pipeline body, wherein the pipeline body consists of a first big-end straight pipe (1), a first taper pipe (2) and a first small-end straight pipe (3) which are arranged from left to right;
the inner lining pipe is arranged on the inner wall of the pipeline body and used for improving the wear resistance and the impact resistance, the inner lining pipe consists of a second big-end straight pipe (9), a second taper pipe (10) and a second small-end straight pipe (11) which are arranged from left to right, and the outer wall of the inner lining pipe is matched with the inner side wall of the pipeline body;
the first flange (4) is fixedly connected to the left end of the pipeline body and is used for being in butt joint with a fire-fighting pipeline, and a compression ring (8) used for compressing the lining pipe is in threaded connection with the inner side wall of the first flange (4);
the second flange (5) is fixedly connected to one end, far away from the first flange (4), of the pipeline body and is used for being in butt joint installation with the water pump;
the positioning ring (6) is arranged on the opposite side of the first flange (4) and the second flange (5) and used for positioning;
and the sealing assemblies are arranged on the inner side walls of the first flange (4) and the second flange (5) and used for sealing.
2. The novel eccentric reducer according to claim 1, characterized in that: the sealing assembly comprises two groups of sealing rings (7), wherein the two groups of sealing rings (7) are respectively sleeved on the inner side walls of the first flange (4) and the second flange (5) and are respectively positioned at the left end of the compression ring (8) and the right end of the lining pipe.
3. The novel eccentric reducer according to claim 2, characterized in that: the outer wall of the compression ring (8) is provided with an external thread (13), the inner side wall of the first flange (4) is provided with an internal thread corresponding to the external thread (13), the compression ring (8) is in threaded connection with the first flange (4) through the external thread (13) and the internal thread, and the side wall of the compression ring (8) is provided with a wrench hole (12) for inserting a wrench.
4. A novel eccentric reducer according to claim 3, characterized in that: the lining pipe is made of silicon carbide, and the pipeline body is made of carbon steel.
5. The novel eccentric reducer according to claim 4, wherein: an included angle between an extension line of the lower wall of the first conical pipe (2) towards the right side and the axial lead of the first small head straight pipe (3) is A, and an included angle between an extension line of the inner lower wall of the second conical pipe (10) towards the right side and the axial lead of the second small head straight pipe (11) is 0.8-0.9A.
6. The novel eccentric reducer according to claim 5, wherein: circular arc transition is arranged at the joint of the inner side lower wall of the second big-head straight pipe (9) and the second taper pipe (10) and the joint of the inner side lower wall of the second small-head straight pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123118090.9U CN216643388U (en) | 2021-12-13 | 2021-12-13 | Novel eccentric reducing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123118090.9U CN216643388U (en) | 2021-12-13 | 2021-12-13 | Novel eccentric reducing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216643388U true CN216643388U (en) | 2022-05-31 |
Family
ID=81740678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123118090.9U Active CN216643388U (en) | 2021-12-13 | 2021-12-13 | Novel eccentric reducing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216643388U (en) |
-
2021
- 2021-12-13 CN CN202123118090.9U patent/CN216643388U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new type of eccentric reducer Granted publication date: 20220531 Pledgee: Weifang rural commercial bank Limited by Share Ltd. hi tech sub branch Pledgor: WEIFANG JUNTONG MACHINERY MATCHING Co.,Ltd. Registration number: Y2024980012302 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |