CN210830895U - High pressure resistant pipeline connecting flange - Google Patents
High pressure resistant pipeline connecting flange Download PDFInfo
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- CN210830895U CN210830895U CN201921907486.1U CN201921907486U CN210830895U CN 210830895 U CN210830895 U CN 210830895U CN 201921907486 U CN201921907486 U CN 201921907486U CN 210830895 U CN210830895 U CN 210830895U
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- fixed block
- high pressure
- screw
- pressure resistant
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Abstract
The utility model provides a high pressure resistant pipeline connecting flange, including first flange and second flange, first flange and second flange circumference respectively even correspondence be provided with a plurality of first screws and second screw, the circular slot has been seted up to first screw upper end, the circular slot inner wall evenly distributes a plurality of internal teeth, dispose hexagon bolt in the first screw, hexagon bolt's bottom passes first screw and second screw and connects first flange and second flange, hexagon bolt's top outwards extends to be higher than first flange upper surface; a buckle cover is arranged above the circular groove and comprises a hook, an installation plate and a fixed block which are integrally formed, the fixed block is cylindrical, outer teeth matched with the inner teeth are arranged on the circumference of the fixed block, and a hexagonal groove corresponding to the top of the hexagonal bolt is formed in the middle of the fixed block; the nut groove has been seted up to second screw upper end, and the nut groove is used for the installation with hexagon nut that the hexagon bolt is fixed, has that the leakproofness is good, connect stable advantage.
Description
Technical Field
The utility model belongs to the technical field of flange, concretely relates to high pressure resistant pipeline flange.
Background
The high-pressure flange connection is a detachable joint which is used for fixing two pipelines, pipe fittings or equipment on a concave flange and a convex flange respectively, then adding a flange pad between the two flange plates, and finally tightening the two flange plates by bolts to tightly combine the two flange plates. However, the stability of the flange on the market is not good, and the looseness phenomenon is easy to occur, so that the sealing performance is limited, and therefore, a person skilled in the art provides a high-pressure-resistant pipeline connecting flange to solve the problems in the background art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high pressure resistant pipeline flange to it is not good to solve current flange steadiness ability, thereby leads to sealing performance general, finally influences the problem of using.
The utility model provides a following technical scheme:
a high-pressure-resistant pipeline connecting flange comprises a first flange and a second flange, wherein a connecting piece is connected between the first flange and the second flange, and bosses are arranged at the opposite connecting ends of the first flange and the second flange; grooves matched with the bosses are respectively formed in two sides of the connecting piece, a plurality of first screw holes and a plurality of second screw holes are respectively and uniformly formed in the circumferences of the first flange and the second flange in a corresponding mode, circular grooves are formed in the upper ends of the first screw holes, a plurality of inner teeth are uniformly distributed on the inner walls of the circular grooves, hexagonal bolts are arranged in the first screw holes, the bottoms of the hexagonal bolts penetrate through the first screw holes and the second screw holes to be connected with the first flange and the second flange, and the tops of the hexagonal bolts extend outwards to be higher than the upper surface of the first flange; a buckle cover is arranged above the circular groove and comprises a hook, an installation plate and a fixed block which are integrally formed, the fixed block is cylindrical, outer teeth matched with the inner teeth are arranged on the circumference of the fixed block, and a hexagonal groove corresponding to the top of the hexagonal bolt is formed in the middle of the fixed block; and a nut groove is formed in the upper end of the second screw hole and used for mounting a hexagon nut fixed with the hexagon bolt.
Furthermore, a flange gasket is arranged in the groove, and the depth of the groove is greater than the thickness of the flange gasket.
Furthermore, the connecting piece, the boss and the groove are all of annular structures.
Further, the hook comprises a column base and a retaining ring which are integrally formed.
Furthermore, the edge of the lower surface of the mounting plate is provided with a chamfer or a fillet.
Furthermore, the surfaces of the inner teeth and the outer teeth are covered with damping layers.
The utility model has the advantages that:
the utility model relates to a high pressure resistant pipeline connecting flange, which connects a first flange and a second flange through a connecting piece, so that the connection is more compact and the sealing performance is good; meanwhile, the position of the hexagon nut is limited through the nut groove, then the hexagon bolt is screwed, the hexagon bolt is fixed through the buckle cover after being screwed, and the hexagon nut and the hexagon bolt are guaranteed not to be loosened in the long-time working process, so that the connection stability of the first flange and the second flange is guaranteed.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of part A of FIG. 1;
FIG. 3 is a side view of the structure of the present invention;
labeled as: 1. the novel flange comprises a first flange body, 11 first screw holes, 12 circular grooves, 13 internal teeth, 14 buckle covers, 141 hooks, 142 mounting plates, 143 external teeth, 2 second flange bodies, 21 second screw holes, 3 connecting pieces, 31 flange gaskets, 4 hexagon bolts and 5 hexagon nuts.
Detailed Description
As shown in fig. 1-3, a high pressure resistant pipe connecting flange comprises a first flange 1 and a second flange 2, a connecting piece 3 is connected between the first flange 1 and the second flange 2, and bosses are arranged at the opposite connecting ends of the first flange 1 and the second flange 2; grooves matched with the bosses are respectively arranged on two sides of the connecting piece 3, flange gaskets 31 are arranged in the grooves, the depth of the grooves is greater than the thickness of the flange gaskets 31, and the connecting piece, the bosses and the grooves are all of annular structures;
the first flange 1 and the second flange 2 are respectively and uniformly provided with a plurality of first screw holes 11 and a plurality of second screw holes 21 in a corresponding mode on the circumferences, the upper end of each first screw hole 11 is provided with a circular groove 12, the inner wall of each circular groove 12 is uniformly distributed with a plurality of internal teeth 13, a hexagonal bolt 4 is arranged in each first screw hole 11, the bottom of each hexagonal bolt 4 penetrates through the first screw holes 11 and the second screw holes 21 to be connected with the first flange 1 and the second flange 2, and the top of each hexagonal bolt 4 extends outwards to be higher than the upper surface of the first flange 1; a buckle cover 14 is arranged above the circular groove 12, the buckle cover 14 comprises a hook 141, a mounting plate 142 and a fixed block which are integrally formed, the fixed block is cylindrical, outer teeth 143 matched with the inner teeth 13 are arranged on the circumference of the fixed block, and a hexagonal groove corresponding to the top of the hexagon bolt 4 is formed in the middle of the fixed block; the upper end of the second screw hole 21 is provided with a nut groove which is used for installing a hexagon nut 5 fixed with the hexagon bolt 4; the hook 141 comprises a column base and a retaining ring which are integrally formed, the edge of the lower surface of the mounting plate 142 is provided with a chamfer or a fillet, and the surfaces of the internal teeth 13 and the external teeth 143 are both covered with damping layers.
The working mode of the present embodiment is to fill the flange gaskets 31 in the grooves on both sides of the connecting member 3, install both sides of the connecting member on the bosses of the first flange 1 and the second flange 2, place the hexagon bolts 4 in the first screw holes 11 and the second screw holes 21, place the hexagon nuts 5 in the nut grooves, tighten the hexagon bolts 4 with a wrench, install the buckle cover 14 after tightening, so that the hexagon grooves are engaged with the tops of the hexagon bolts 4, and the internal teeth 13 are engaged with the external teeth 143, so that the hexagon bolts 4 and the hexagon nuts 5 are fixed stably.
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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A high-pressure-resistant pipeline connecting flange comprises a first flange and a second flange, wherein a connecting piece is connected between the first flange and the second flange, and bosses are arranged at the opposite connecting ends of the first flange and the second flange; the connecting piece is characterized in that a plurality of first screw holes and a plurality of second screw holes are uniformly and correspondingly formed in the circumferences of the first flange and the second flange respectively, a circular groove is formed in the upper end of each first screw hole, a plurality of inner teeth are uniformly distributed on the inner wall of each circular groove, a hexagonal bolt is arranged in each first screw hole, the bottom of each hexagonal bolt penetrates through the corresponding first screw hole and the corresponding second screw hole to be connected with the corresponding first flange and the corresponding second flange, and the top of each hexagonal bolt extends outwards to be higher than the upper surface of the corresponding first flange; a buckle cover is arranged above the circular groove and comprises a hook, an installation plate and a fixed block which are integrally formed, the fixed block is cylindrical, outer teeth matched with the inner teeth are arranged on the circumference of the fixed block, and a hexagonal groove corresponding to the top of the hexagonal bolt is formed in the middle of the fixed block; and a nut groove is formed in the upper end of the second screw hole and used for mounting a hexagon nut fixed with the hexagon bolt.
2. A high pressure resistant pipe coupling flange as claimed in claim 1, wherein a flange gasket is provided in said recess, and the depth of said recess is greater than the thickness of said flange gasket.
3. The high pressure resistant pipe connecting flange according to claim 1, wherein the connecting member, the boss and the groove are all ring structures.
4. A high pressure resistant pipe coupling flange as claimed in claim 1 wherein said hook comprises an integral post seat and retaining ring.
5. A high pressure resistant pipe coupling flange as claimed in claim 1, wherein the lower surface edge of said mounting plate is chamfered or rounded.
6. A high pressure resistant pipe connecting flange as claimed in claim 1, wherein said internal teeth and said external teeth are covered with a damping layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921907486.1U CN210830895U (en) | 2019-11-06 | 2019-11-06 | High pressure resistant pipeline connecting flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921907486.1U CN210830895U (en) | 2019-11-06 | 2019-11-06 | High pressure resistant pipeline connecting flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210830895U true CN210830895U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921907486.1U Active CN210830895U (en) | 2019-11-06 | 2019-11-06 | High pressure resistant pipeline connecting flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210830895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049998A (en) * | 2020-09-27 | 2020-12-08 | 张家港华日法兰有限公司 | Structure of flange with high sealing performance and antirust function and machining method thereof |
-
2019
- 2019-11-06 CN CN201921907486.1U patent/CN210830895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049998A (en) * | 2020-09-27 | 2020-12-08 | 张家港华日法兰有限公司 | Structure of flange with high sealing performance and antirust function and machining method thereof |
| CN112049998B (en) * | 2020-09-27 | 2024-06-07 | 张家港华日法兰有限公司 | Flange structure with high sealing performance and rust prevention function and processing method thereof |
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