CN215060257U - Welding flange with good sealing performance - Google Patents
Welding flange with good sealing performance Download PDFInfo
- Publication number
- CN215060257U CN215060257U CN202120499681.6U CN202120499681U CN215060257U CN 215060257 U CN215060257 U CN 215060257U CN 202120499681 U CN202120499681 U CN 202120499681U CN 215060257 U CN215060257 U CN 215060257U
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- welding
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- annular
- sealing performance
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- 238000003466 welding Methods 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 title claims description 61
- 210000003739 neck Anatomy 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model discloses a welding flange that leakproofness is good, including last flange and lower flange, go up flange and the equal fixed a plurality of mounting holes that are provided with of lower flange periphery, go up flange and the equal fixedly connected with tube neck in lower flange middle part, two the equal fixed a plurality of U type weld grooves that are provided with of tube neck tip, go up the fixed ring channel that is provided with in middle part of flange inner, the fixed annular that is provided with in middle part of flange inner is protruding down, the annular is protruding to cooperate with the ring channel to be connected, go up flange inner and lean on the fixed two sealed slots that are provided with in middle part, flange inner leans on the fixed two sealed cutting that are provided with in middle part down. The utility model discloses a welded flange that the leakproofness is good adopts dual sealed mode, can further improve flange joint's leakproofness to prevent the phenomenon of gas leakage or weeping, the result of use is better, is worth promoting.
Description
Technical Field
The utility model relates to a flange technical field especially relates to welding flange that the leakproofness is good.
Background
Flanges are also called circular flanges or flanges, flanges are parts for interconnecting pipes and valves, and are connected to pipe ends, there are holes on the flanges, the two flanges can be tightly connected through bolts, welding flanges are parts for interconnecting pipes and pipes, and are connected to pipe ends, there are holes on the welding flanges, the two flanges are connected through bolts, and are sealed with gaskets, and the welding flanges are disc-shaped parts, which are most common in pipeline engineering.
However, due to the butt welding adopted between the welding flange and the connecting pipeline, problems such as welding crack and welding seam are easy to occur, and sometimes, due to reasons such as pipe wall thickness, the welding strength is not enough, so that the service life of the flange is not long, and when the traditional welding flange is connected with another welding flange, the sealing performance of the connecting surface of the two is not high, the phenomenon of air leakage or liquid leakage is easy to occur, the using effect is poor, and therefore, the welding flange with good sealing performance needs to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a welding flange with good sealing performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme: welding flange that leakproofness is good, including flange and lower flange, go up flange and the equal fixed a plurality of mounting holes that are provided with in flange periphery down, go up flange and the equal fixedly connected with pipe neck in flange middle part down, two the equal fixed a plurality of U type welding seam grooves that are provided with of pipe neck tip, go up the fixed ring channel that is provided with in flange inner middle part, flange inner middle part is fixed to be provided with the annular arch down, the annular arch cooperatees with the ring channel and is connected, go up flange inner and lean on the fixed two sealed slots that are provided with in middle part, flange inner leans on the fixed two sealed cutting that is provided with in middle part down, two sealed cutting is respectively in two sealed slot cooperatees and connects.
As a further description of the above technical solution:
a plurality of the mounting holes are internally and fixedly provided with connecting bolts, and the end parts of the connecting bolts are in threaded connection with fastening nuts.
As a further description of the above technical solution:
and an annular sealing gasket is fixedly arranged inside the annular groove.
As a further description of the above technical solution:
and two U-shaped sealing gaskets are fixedly arranged inside the sealing slots.
As a further description of the above technical solution:
the annular groove is coaxially aligned with the central bore between the upper attachment flanges.
As a further description of the above technical solution:
and the two sealing slots and the sealing inserting strips are arranged in a ring shape.
As a further description of the above technical solution:
two the pipe neck all is the toper setting, and the wall thickness of pipe diameter is from bottom to top taper down gradually.
As a further description of the above technical solution:
the annular sealing gasket and the two U-shaped sealing gaskets are both made of elastic rubber materials.
The utility model discloses following beneficial effect has:
the welding flange with good sealing performance provided by the utility model has the advantages that the annular groove is arranged in the middle of the upper connecting flange, the annular sealing gasket is arranged in the annular groove, the annular bulge in the middle of the lower connecting flange is matched with the annular groove for positioning connection, the connection is more accurate, the annular sealing gasket is extruded and fixed, the connection sealing performance between the welding flanges is better, thereby preventing the phenomenon of air leakage or liquid leakage, the two layers of annular sealing slots are arranged in the middle of the connecting surface of the upper connecting flange, the U-shaped sealing gasket is arranged in the annular sealing slots, the annular sealing slots are matched with the sealing inserting strips on the connecting surface of the lower connecting flange, the accuracy of flange connection is further improved, the flange connecting surface is sealed secondarily, and the sealing performance of flange connection can be further improved by adopting a dual sealing mode, the use effect is better, is worth promoting.
The utility model provides a welded flange that leakproofness is good is provided with a plurality of U type weld grooves through flange's pipe diameter tip from top to bottom, can further deepen the thickness of joint weld, makes the welding between connecting tube and the welded flange more firm, further increases welded flange connection's stability, is favorable to liquid transmission process's stability, also further improves flange connection's leakproofness.
Drawings
Fig. 1 is a schematic view of an upper connecting flange and a lower connecting flange of a welding flange with good sealing performance provided by the utility model;
fig. 2 is a schematic view of a connection structure of a welding flange with good sealing performance according to the present invention;
fig. 3 is an enlarged view of a structure at a in fig. 2 according to the present invention;
fig. 4 is a bottom view of the upper and lower connecting flanges of the welding flange with good sealing performance according to the present invention.
Illustration of the drawings:
1. an upper connecting flange; 2. a lower connecting flange; 3. mounting holes; 4. a neck; 5. a U-shaped weld groove; 6. a connecting bolt; 7. fastening a nut; 8. an annular groove; 9. an annular seal; 10. an annular projection; 11. sealing the slot; 12. a U-shaped sealing gasket; 13. and sealing the cutting.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides an embodiment: a welding flange with good sealing performance comprises an upper connecting flange 1 and a lower connecting flange 2, wherein a plurality of mounting holes 3 are fixedly arranged on the peripheries of the upper connecting flange 1 and the lower connecting flange 2, pipe necks 4 are fixedly connected to the middle parts of the upper connecting flange 1 and the lower connecting flange 2, a plurality of U-shaped welding seam grooves 5 are fixedly arranged at the end parts of the two pipe necks 4, the thickness of a connecting welding seam can be further increased, the welding between a connecting pipeline and the welding flange is firmer, the connecting stability of the welding flange is further improved, an annular groove 8 is fixedly arranged in the middle part of the inner end of the upper connecting flange 1, an annular bulge 10 is fixedly arranged in the middle part of the inner end of the lower connecting flange 2, the annular bulge 10 is matched and connected with the annular groove 8, the connecting accuracy of the flange is improved, two sealing slots 11 are fixedly arranged at the middle part of the inner end of the upper connecting flange 1, two sealing inserting strips 13 are fixedly arranged at the middle part of the inner end of the lower connecting flange 2, two sealed cutting 13 cooperate in two sealed slots 11 respectively and connect, further improve flange joint's the degree of accuracy, and the secondary is sealed flange joint face.
The inside equal fixed connecting bolt 6 that is provided with of a plurality of mounting holes 3, the equal threaded connection of 6 tip of a plurality of connecting bolt has fastening nut 7, 8 inside fixed annular gaskets 9 that are provided with of ring channel, 11 inside all fixed U type sealing gaskets 12 that are provided with of two sealed slots, the coaxial alignment of centre bore between ring channel 8 and the last flange 1, two sealed slots 11 all set up the circularity with sealed cutting 13, two pipe necks 4 all are the toper setting, the wall thickness of pipe diameter is by the attenuation gradually from bottom to top, annular gaskets 9 and two sealed 12 of U type sealing gaskets are all formed by the preparation of elastic rubber material.
The working principle is as follows: when the welding flange with good sealing performance is used, the annular groove 8 is arranged in the middle of the upper connecting flange 1, the annular sealing gasket 9 is arranged in the annular groove 8, the annular bulge 10 in the middle of the lower connecting flange 2 is matched with the annular groove 8 for positioning connection, the connection is more accurate, the annular sealing gasket 9 is extruded and fixed, the connection sealing performance between the welding flanges is better, and therefore the phenomenon of air leakage or liquid leakage is prevented, two layers of annular sealing slots 11 are arranged in the middle of the connecting surface of the upper connecting flange 1, the U-shaped sealing gasket 12 is arranged in the annular sealing slot 11, the annular sealing slot 11 is matched with the sealing inserting strip 13 on the connecting surface of the lower connecting flange 2, the accuracy of flange connection is further improved, the flange connecting surface is sealed secondarily, a double sealing mode is adopted, and the sealing performance of the flange connection can be further improved, the pipe diameter end part of the upper connecting flange and the lower connecting flange is provided with a plurality of U-shaped welding seam grooves 5, so that the thickness of the connecting welding seam can be further deepened, the welding between the connecting pipeline and the welding flange is firmer, the stability of the connection of the welding flange is further improved, the stability of a liquid transmission process is facilitated, the using effect is better, and the pipe diameter end part is worth popularizing.
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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (8)
1. Welding flange that leakproofness is good, including flange (1) and flange (2) down, its characterized in that: a plurality of mounting holes (3) are fixedly arranged on the peripheries of the upper connecting flange (1) and the lower connecting flange (2), the middle parts of the upper connecting flange (1) and the lower connecting flange (2) are fixedly connected with pipe necks (4), the end parts of the two pipe necks (4) are fixedly provided with a plurality of U-shaped welding seam grooves (5), an annular groove (8) is fixedly arranged in the middle of the inner end of the upper connecting flange (1), the middle part of the inner end of the lower connecting flange (2) is fixedly provided with an annular bulge (10), the annular bulge (10) is matched and connected with the annular groove (8), two sealing slots (11) are fixedly arranged at the inner end of the upper connecting flange (1) close to the middle part, the inner end of the lower connecting flange (2) is fixedly provided with two sealing inserting strips (13) close to the middle part, and the two sealing inserting strips (13) are respectively connected in a matching way in the two sealing inserting grooves (11).
2. The welding flange with good sealing performance according to claim 1, characterized in that: a plurality of connecting bolts (6) are fixedly arranged in the mounting holes (3), and fastening nuts (7) are connected to the end parts of the connecting bolts (6) in a threaded manner.
3. The welding flange with good sealing performance according to claim 1, characterized in that: and an annular sealing gasket (9) is fixedly arranged in the annular groove (8).
4. The welding flange with good sealing performance according to claim 1, characterized in that: two the inside U type sealed pad (12) that all is fixed to sealed slot (11).
5. The welding flange with good sealing performance according to claim 1, characterized in that: the annular groove (8) is coaxially aligned with the central hole between the upper connecting flanges (1).
6. The welding flange with good sealing performance according to claim 1, characterized in that: the two sealing slots (11) and the sealing inserting strips (13) are all arranged in a ring shape.
7. The welding flange with good sealing performance according to claim 1, characterized in that: two the pipe neck (4) all are the toper setting, and the wall thickness of pipe diameter is from bottom to top taper down gradually.
8. The welding flange with good sealing performance according to claim 3, characterized in that: the annular sealing gasket (9) and the two U-shaped sealing gaskets (12) are both made of elastic rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120499681.6U CN215060257U (en) | 2021-03-09 | 2021-03-09 | Welding flange with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120499681.6U CN215060257U (en) | 2021-03-09 | 2021-03-09 | Welding flange with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215060257U true CN215060257U (en) | 2021-12-07 |
Family
ID=79260163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120499681.6U Active CN215060257U (en) | 2021-03-09 | 2021-03-09 | Welding flange with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215060257U (en) |
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2021
- 2021-03-09 CN CN202120499681.6U patent/CN215060257U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231108 Address after: 116000 D2-2 90, E District, Xinghai Plaza, Shahekou District, Dalian, Liaoning. Patentee after: JINGGONG AUTOMATIC CONTROL INSTRUMENT COMPLETE TECHNOLOGY DEVELOPMENT CO. Address before: 332000 Huang Ling Xiang Jin Huang Cun, Pengze County, Jiujiang City, Jiangxi Province Patentee before: Jiujiang zhongxingran Auto Parts Manufacturing Co.,Ltd. |