CN215950694U

CN215950694U - Pipeline flange

Info

Publication number: CN215950694U
Application number: CN202122168348.XU
Authority: CN
Inventors: 陈汀
Original assignee: Hangzhou Zhuxin Sliding Bearing Co ltd
Current assignee: Hangzhou Zhuxin Sliding Bearing Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-04
Anticipated expiration: 2031-09-08

Abstract

The utility model provides a pipeline flange, includes first ring flange, second ring flange and mounting, the mounting is fixed a position first ring flange and second ring flange, first ring flange and second ring flange joint respectively have first pipeline and second pipeline, leave the clearance between first pipeline and the second pipeline, the joint has the external seal ring between first ring flange and the second ring flange, first pipeline and second pipeline inner wall joint have the inner seal ring, the external seal ring includes ring body and bulge loop. According to the utility model, the inner sealing ring arranged between the first pipeline and the second pipeline is used for primary sealing, the outer sealing ring is used for secondary sealing, the convex ring of the outer sealing ring is connected with the first pipeline and the second pipeline, so that a better sealing effect can be realized independently, and finally, tertiary sealing is realized through the connection of the first flange plate and the second flange plate, so that the overall sealing performance is greatly improved, and the structure has more application scenes and higher cost performance.

Description

Pipeline flange

Technical Field

The utility model relates to the technical field of flanges, in particular to a pipeline flange.

Background

The flange connection is that two pipelines, pipe fittings or equipment are respectively fixed on a flange plate, a flange pad is arranged between the two flange plates and fastened together by bolts, and the connection is completed. Some pipe fittings and equipment are provided with flanges, and the flange connection is also the object of flange connection. The flange connection is an important connection mode for pipeline construction, is convenient to use and can bear larger pressure.

The existing flange is connected with a pipeline through a bolt and a nut matched with a rubber ring, the connection mode can realize the connection stability of the foundation, but the sealing performance is poor, so that the pipeline flange needs to be designed according to the situation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a pipeline flange.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme:

a pipeline flange comprises a first flange plate, a second flange plate and a fixing piece, wherein the fixing piece is used for positioning the first flange plate and the second flange plate, the first flange plate and the second flange plate are respectively clamped with a first pipeline and a second pipeline, a gap is reserved between the first pipeline and the second pipeline, an outer sealing ring is clamped between the first flange plate and the second flange plate, inner sealing rings are clamped on the inner walls of the first pipeline and the second pipeline, each outer sealing ring comprises a ring body and a convex ring, each convex ring is positioned on the inner ring surface of the ring body, each convex ring is positioned between the first pipeline and the second pipeline and is abutted against the side walls of the first pipeline and the second pipeline, preliminary sealing is carried out through the inner sealing rings arranged between the first pipeline and the second pipeline, the outer sealing rings are used for secondary sealing, and the convex rings of the outer sealing rings are abutted against the first pipeline and the second pipeline, can realize better sealed effect alone, realize the cubic through the connection of first ring flange and second ring flange sealed at last, improve holistic leakproofness greatly, and this structure is suitable for the scene more, and the price/performance ratio is higher.

Preferably, the first flange plate is close to one side of the second flange plate is provided with a clamping block, the second flange plate is close to one side of the first flange plate is provided with a clamping groove, the clamping block is in sliding connection with the clamping groove, and the first flange and the second flange are pre-positioned and clamped through the clamping groove and the clamping block, so that the whole structure is more stable, and the installation is convenient.

Preferably, the fixture block is the arc piece, and the flaky fixture block of arc can realize more excellent joint, spacing effect through less quantity for traditional column fixture block, further promotes holistic stability.

Preferably, through holes are formed in the first flange plate and the second flange plate, the fixing piece comprises a bolt and a nut, and the bolt simultaneously penetrates through the through holes corresponding to the first flange plate and the second flange plate.

Preferably, all be equipped with first recess in first pipeline and the second pipeline, first recess is located the mouth of pipe department that first pipeline and second pipeline are close to each other, interior sealing ring with first recess joint.

Preferably, all be equipped with the opening on first ring flange and the second ring flange, first pipeline and second pipeline are located respectively the opening department of first flange and second flange, one side that first ring flange and second ring flange close to each other all is equipped with the second recess, one side that first pipeline and second pipeline close to each other is equipped with the extension arch, the extension arch of first pipeline and second pipeline respectively with the second recess joint of first ring flange and second ring flange.

Preferably, a first rubber ring is arranged in the through hole, and a second rubber ring is arranged in the through hole.

The utility model has the advantages and positive effects that:

1. according to the utility model, the inner sealing ring arranged between the first pipeline and the second pipeline is used for primary sealing, the outer sealing ring is used for secondary sealing, the convex ring of the outer sealing ring is connected with the first pipeline and the second pipeline, so that a better sealing effect can be realized independently, and finally, tertiary sealing is realized through the connection of the first flange plate and the second flange plate, so that the overall sealing performance is greatly improved, and the structure has more application scenes and higher cost performance.

2. The clamping groove and the clamping block are used for pre-positioning and clamping the first flange and the second flange, so that the integral structure is more stable and convenient to install, and compared with the traditional columnar clamping block, the arc-shaped sheet-shaped clamping block can realize better clamping and limiting effects through a smaller number of clamping blocks, and the integral stability is further improved.

Drawings

FIG. 1 is a schematic axial side view of the present invention;

FIG. 2 is a schematic axial side view of a first flange of the present invention;

FIG. 3 is a schematic axial side view of the first flange of the present invention;

FIG. 4 is a cross-sectional view of the present invention;

fig. 5 is an enlarged view of the utility model at a in fig. 4.

In the figure: 11. a first flange plate; 12. a second flange plate; 21. a first conduit; 22. a second conduit; 3. a fixing member; 31. a bolt; 32. a nut; 41. an inner seal ring; 42. an outer seal ring; 421. a ring body; 422. a convex ring; 51. a clamping block; 52. a card slot; 61. a through hole; 62. a port; 63. a second groove; 71. an extension projection; 81. a first rubber ring; 82. and a second rubber ring.

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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The embodiments of the utility model will be described in further detail below with reference to the accompanying drawings:

as shown in fig. 1 and 4, a pipe flange according to the present invention includes a first flange 11, a second flange 12, and a fixing member 3, wherein the first flange 11 and the second flange 12 are symmetrically disposed, the fixing member 3 positions the first flange 11 and the second flange 12, and fixes the first flange 11 and the second flange 12 so that the first flange 11 and the second flange 12 are tightly connected, the first flange 11 and the second flange 12 are respectively connected with a first pipe 21 and a second pipe 22 in a clamping manner, the first pipe 21 and the second pipe 22 are symmetrically disposed, a gap is left between the first pipe 21 and the second pipe 22, inner sealing rings 41 are connected to inner walls of the first pipe 21 and the second pipe 22 in a clamping manner, the inner sealing rings 41 are annular and have an outer annular surface and an inner annular surface, the outer annular surface of the inner sealing rings 41 is connected to inner walls of the first pipe 21 and the second pipe 22 at the same time, a right side surface of the first pipe 21 and a left side surface of the second pipe 22 are sidewalls, the outer ring surface of the inner sealing ring 41 is matched, and can be regarded as a circular groove, the outer sealing ring 42 is clamped between the first flange plate 11 and the second flange plate 12, the outer sealing ring 42 is preferably made of rubber, the outer sealing ring 42 comprises a ring body 421 and a convex ring 422, the convex ring 422 is positioned on the inner ring surface of the ring body 421, the convex ring 422 is positioned between the first pipeline 21 and the second pipeline 22 and is abutted against the side walls of the first pipeline 21 and the second pipeline 22, as shown in fig. 4 and 5, in the view of the cross section, the inner change surface of the ring body 421 is divided into a left change surface and a right change surface by the convex ring 422, and each change surface is respectively connected with the outer ring surfaces of the first pipeline 21 and the second pipeline 22, so that sealing is realized, the inner sealing ring 41 arranged between the first pipeline 21 and the second pipeline 22 is used for primary sealing, the outer sealing ring 42 is used for secondary sealing, and the convex ring 422 of the outer sealing ring 42 is connected with the outer ring 21, the first pipeline 21, Second pipeline 22 meets, can realize better sealed effect alone, realizes the cubic through the connection of first ring flange 11 and second ring flange 12 at last and seals, has improved holistic leakproofness greatly, and this structure is suitable for the scene more, and the price/performance ratio is higher.

As shown in fig. 2 and 3, a clamping block 51 is arranged on one side of the first flange plate 11 close to the second flange plate 12, a clamping groove 52 is arranged on one side of the second flange plate 12 close to the first flange plate 11, 2 clamping blocks 51 and 2 clamping grooves 52 are arranged, the clamping blocks 51 are symmetrically arranged on one side surface of the first flange plate 11 close to the second flange plate 12, the clamping grooves 52 are symmetrically arranged on one side surface of the second flange plate 12 close to the first flange plate 11, the clamping blocks 51 are in sliding connection with the clamping grooves 52, the first flange is in prepositioning and clamping connection with the second flange through the clamping grooves 52 and the clamping blocks 51, so that the whole structure is more stable, and the installation is convenient. The fixture block 51 is an arc-shaped piece, the circle center of the fixture block is located on the axis of the first flange plate 11, the radian of the fixture block is 30-90 degrees, and compared with the traditional cylindrical fixture block 51, the arc-shaped piece-shaped fixture block 51 can achieve better clamping and limiting effects through a small number, and the overall stability is further improved.

As shown in fig. 1, 2 and 3, the first flange plate 11 and the second flange plate 12 are both provided with through holes 61, first rubber rings 81 are provided in the through holes 61, the through holes 61 are two-up and two-down and are symmetrically arranged, the fixing member 3 includes bolts 31 and nuts 32, and the bolts 31 simultaneously pass through the through holes 61 corresponding to the first flange plate 11 and the second flange plate 12.

As shown in fig. 5, a first groove is provided in each of the first pipe 21 and the second pipe 22, the first groove is located at the pipe orifice where the first pipe 21 and the second pipe 22 are adjacent to each other, the inner sealing ring 41 is clamped with the first groove, the first groove of the first pipe 21 opens towards the second pipe 22, the first groove of the second pipe 22 opens towards the first pipe 21, and the outer annular surface of the inner sealing ring 41 is connected with the side wall of the first groove.

As shown in fig. 2, 3 and 5, the first flange plate 11 and the second flange plate 12 are both provided with a through hole 62, the through hole 62 is provided with a second rubber ring 82, the through hole is cylindrical and penetrates through the first flange plate 11 and the second flange plate 12, the first pipeline 21 and the second pipeline 22 are respectively positioned at the through hole 62 of the first flange plate and the second flange plate, the first pipeline 21 is slidably connected with the through hole of the first flange plate 11, the second pipeline 22 is slidably connected with the through hole of the second flange plate 12, after the second rubber ring 82 is arranged, the first pipeline 21 and the second pipeline 22 are respectively slidably connected with the second rubber ring 82 in the through hole 62 of the first flange plate 11 and the second flange plate 12, the side of the first flange plate 11 and the side of the second flange plate 12 adjacent to each other are both provided with a second groove 63, referring to fig. 2 and 3, the second groove 63 is stepped, and has 2 steps, the side of the first pipeline 21 and the side of the second pipeline 22 adjacent to each other is provided with an extending protrusion 71, the extension protrusions 71 of the first pipe 21 and the second pipe 22 are respectively clamped with the second grooves 63 of the first flange 11 and the second flange 12, taking the extension protrusion 71 of the first pipe 21 as an example, referring to fig. 5, a 2-step of the second slot 52 of the first flange 11 is a first step and a second step from left to right, the extension protrusion 71 of the first pipe 21 is connected with a first step sidewall of the second slot 52 and clamped in a second step of the second slot 52, the ring body 421 of the outer sealing ring 42 is connected with the second step of the second slot 52 and clamped with the extension protrusion 71 and the second step at the same time, and taking this as an example, the connection relationship between the second pipe 22 and the second flange 12 is the same as above.

During specific implementation, the first pipeline 21 is installed on the first flange plate 11 from the right side to the left, the second pipeline 22 is installed on the second flange plate 12 from the left to the right, the inner sealing ring 41 is clamped on the first groove of the first pipeline 21, the outer sealing ring is clamped in the second groove 63, then the clamping groove 52 of the second flange plate 12 is aligned to the clamping block 51 of the first flange plate 11 for butt joint, the right sides of the butted inner sealing ring 41 and the butted outer sealing ring 42 are clamped at the corresponding positions of the second flange plate 12, and then the fixing is performed through the bolts 31 and the nuts 32.

It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but other embodiments derived from the technical solutions of the present invention by those skilled in the art are also within the scope of the present invention.

Claims

1. A pipe flange, characterized in that: comprises a first flange plate (11), a second flange plate (12) and a fixing piece (3), the fixing piece (3) positions the first flange plate (11) and the second flange plate (12), the first flange plate (11) and the second flange plate (12) are respectively clamped with a first pipeline (21) and a second pipeline (22), a gap is reserved between the first pipeline (21) and the second pipeline (22), an outer sealing ring (42) is clamped between the first flange plate (11) and the second flange plate (12), the inner walls of the first pipeline (21) and the second pipeline (22) are clamped with inner sealing rings (41), the outer sealing ring (42) comprises a ring body (421) and a convex ring (422), the convex ring (422) is positioned on the inner ring surface of the ring body (421), and the convex ring (422) is positioned between the first pipeline (21) and the second pipeline (22) and is abutted against the side walls of the first pipeline (21) and the second pipeline (22).

2. A pipe flange according to claim 1, wherein: one side that first ring flange (11) are close to second ring flange (12) is equipped with fixture block (51), one side that second ring flange (12) are close to first ring flange (11) is equipped with draw-in groove (52), fixture block (51) with draw-in groove (52) sliding connection.

3. A pipe flange according to claim 2, wherein: the fixture block (51) is an arc-shaped piece.

4. A pipe flange according to claim 1, wherein: all be equipped with through hole (61) on first ring flange (11) and second ring flange (12), mounting (3) are including bolt (31) and nut (32), through hole (61) that first ring flange (11), second ring flange (12) correspond are passed simultaneously in bolt (31).

5. A pipe flange according to claim 3 or 4, wherein: all be equipped with first recess in first pipeline (21) and second pipeline (22), first recess is located the mouth of pipe department that first pipeline (21) and second pipeline (22) are close to each other, interior sealing ring (41) with first recess joint.

6. A pipe flange according to claim 4, wherein: all be equipped with opening (62) on first ring flange (11) and second ring flange (12), first pipeline (21) and second pipeline (22) are located respectively opening (62) department of first flange and second flange, one side that first ring flange (11) and second ring flange (12) are close to each other all is equipped with second recess (63), one side that first pipeline (21) and second pipeline (22) are close to each other is equipped with extends arch (71), the protruding (71) of extension of first pipeline (21) and second pipeline (22) respectively with second recess (63) joint of first ring flange (11) and second ring flange (12).

7. A pipe flange according to claim 6, wherein: a first rubber ring (81) is arranged in the through hole (61), and a second rubber ring (82) is arranged in the through hole (62).