CN213236447U

CN213236447U - Split type flange for municipal engineering line pipeline

Info

Publication number: CN213236447U
Application number: CN202022081988.2U
Authority: CN
Inventors: 朱良俊
Original assignee: Anhui Liangjun Construction Engineering Co ltd
Current assignee: Anhui Liangjun Construction Engineering Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-05-18
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a split type flange of municipal works circuit pipeline, its technical scheme main points are: the flange comprises a first flange and a second flange, wherein a plurality of first threaded holes are uniformly formed in the end part of the first flange, a plurality of second threaded holes are formed in the second flange, an annular groove is formed in the end part of the first flange, an annular flange is integrally arranged at the position, corresponding to the annular groove, of the end part of the second flange, the annular flange is in interference fit with the annular groove, a plurality of positioning holes are uniformly formed in the end part of the first flange, a plurality of positioning columns are integrally arranged at the positions, corresponding to the plurality of positioning holes, of the second flange, a first boss is integrally arranged in the middle part of the first flange, a second boss is integrally arranged in the middle part of the second flange, fastening bolts are arranged inside the first threaded holes and the second threaded holes, and fastening nuts are in threaded connection with the end parts; the utility model provides a current split type flange's the poor and slower problem of assembling process of leakproofness.

Description

Split type flange for municipal engineering line pipeline

Technical Field

The utility model belongs to the technical field of split type flange technique and specifically relates to a split type flange of municipal works circuit pipeline.

Background

In modern city construction, split type connecting flanges are often needed to be connected with each other between engineering line pipelines, the flange connection is that two pipelines, pipe fittings or equipment are respectively fixed on a flange plate firstly, a flange pad is added between the two flange plates and fastened together by bolts, the connection is completed, and some pipe fittings and equipment are provided with flange plates and also belong to the flange connection. The flange connection is convenient to use and can bear larger pressure, so that the flange connection is widely used in production and is generally applied to various pressure containers and pipeline connections.

The sealing surface of the splicing part of the existing split type connecting flange after splicing is a plane, the contact area of the sealing surface and a flange gasket is large, the flange gasket is easy to extend or move to two sides after pre-tightening, the sealing performance is poor, and the split type connecting flange is only suitable for low-pressure occasions; when the existing split type connecting flange is installed, the fastening bolts can be stretched into the connecting flange only after the threaded holes in the left flange plate and the right flange plate are aligned, and the assembling process is slow.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, the utility model aims at providing a split type flange of municipal works line pipe to solve the current split type flange's that mentions in the background art leakproofness is poor and the slow problem of assembling process.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a split type connecting flange of a municipal engineering line pipeline comprises a first flange, a second flange and an engineering pipeline arranged between the first flange and the second flange, wherein a plurality of first threaded holes are uniformly formed in the end part of the first flange, a plurality of second threaded holes are formed in the position, corresponding to the plurality of first threaded holes, of the second flange, an annular groove is formed in the end part of the first flange, an annular flange is integrally arranged at the position, corresponding to the annular groove, of the end part of the second flange, the annular flange is in interference fit with the annular groove, a plurality of positioning holes are uniformly formed in the end part of the first flange, a plurality of positioning columns are integrally arranged at the position, corresponding to the plurality of positioning holes, of the second flange, a first boss is integrally arranged in the middle part of the first flange, and a second boss is integrally arranged in the middle part of the second flange, and fastening bolts are arranged in the first threaded holes and the second threaded holes, and fastening nuts are connected to the end parts of the fastening bolts in a threaded manner.

Furthermore, a first through hole and a second through hole are respectively formed in the middle of the first flange and the second flange, and the engineering pipeline is arranged between the first through hole and the second through hole.

By adopting the technical scheme, the installation of the engineering pipeline is facilitated.

Furthermore, the depth of the annular groove is larger than the height of the annular flange, a rubber sealing ring is fixedly arranged at the bottom of the annular groove, and the rubber sealing ring is made of nitrile rubber.

Through adopting above-mentioned technical scheme, avoid leaving great gap between first flange and the second flange, the fixed leakproofness that is provided with rubber seal and can guarantee first flange and second flange after the assembly of annular groove's bottom.

Furthermore, the positioning column is cylindrical, and the height of the positioning column is greater than that of the annular flange.

Through adopting above-mentioned technical scheme, when first flange of installation and second flange, the reference column can contact the terminal surface of first flange foremost.

Furthermore, internal threads matched with the external threads on the fastening bolt are respectively formed in the first threaded hole and the second threaded hole.

Through adopting above-mentioned technical scheme, be favorable to installing fastening bolt to first flange and second flange joint's stability has been guaranteed.

Furthermore, a plurality of reinforcing ribs are respectively and fixedly arranged between the first boss and the first flange and between the second boss and the second flange.

Through adopting above-mentioned technical scheme, set up the stability that a plurality of strengthening ribs can improve first boss and second boss.

Further, a flange gasket is arranged between the first flange and the second flange.

Through adopting above-mentioned technical scheme, can guarantee first flange and second flange joint's stability.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model discloses a, through set up the annular groove on first flange, set up annular flange on the second flange, when assembling first flange and second flange, annular flange can stretch into the inside to the annular groove, because annular flange is interference fit with the annular groove for the leakproofness of first flange and second flange joint face department is better, and its sealed effect can not weaken because of the removal of flange packing ring, can be applicable to high-pressure place.

2. The utility model discloses a, through set up a plurality of locating holes on first flange, set up a plurality of reference columns on the second flange, when needing to install first flange and second flange, at first remove the second flange to the direction of first flange, rotate the second flange and make the reference column stretch into the inside to the locating hole, the matching of first screw hole and second screw hole has been accomplished promptly, operating personnel need not to align first screw hole and second screw hole alone when installing fastening bolt, the efficiency of assembly has been improved, the time of assembly has been saved.

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 structural view of a first flange of the present invention;

fig. 3 is a schematic structural view of a first flange of the present invention;

fig. 4 is a schematic structural diagram of the positioning column of the present invention.

In the figure: 1. a first flange; 101. a first through hole; 102. a first threaded hole; 103. an annular groove; 104. positioning holes; 105. a first boss; 2. a second flange; 201. a second through hole; 202. a second threaded hole; 203. an annular flange; 204. a positioning column; 205. a second boss; 3. an engineering pipeline; 4. a rubber seal ring; 5. fastening a bolt; 6. fastening a nut; 7. reinforcing ribs; 8. a flange gasket.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship 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. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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.

Example one

Referring to fig. 1-3, a split type connecting flange for municipal engineering pipeline comprises a first flange 1, a second flange 2 and an engineering pipeline 3 arranged between the first flange 1 and the second flange 2, wherein the end of the first flange 1 is uniformly provided with four first threaded holes 102, the second flange 2 is provided with four second threaded holes 202 at positions corresponding to the four first threaded holes 102, the end of the first flange 1 is provided with an annular groove 103, the end of the second flange 2 is integrally provided with an annular flange 203 at a position corresponding to the annular groove 103, the annular flange 203 is in interference fit with the annular groove 103, the end of the first flange 1 is uniformly provided with four positioning holes 104, the second flange 2 is integrally provided with four positioning posts 204 at positions corresponding to the four positioning holes 104, and the positioning posts 204 are in clearance fit with the positioning holes 104, in order to ensure that the positioning column 204 can rapidly extend into the positioning hole 104, the first boss 105 is integrally arranged in the middle of the first flange 1, the second boss 205 is integrally arranged in the middle of the second flange 2, the fastening bolts 5 are arranged in the first threaded hole 102 and the second threaded hole 202, and the fastening nuts 6 are connected to the end portions of the fastening bolts 5 in a threaded manner.

Referring to fig. 1 to 3, a first through hole 101 and a second through hole 201 are respectively formed in the middle of the first flange 1 and the second flange 2, and the engineering pipeline 3 is disposed between the first through hole 101 and the second through hole 201.

Referring to fig. 1-3, the depth of the annular groove 103 is greater than the height of the annular flange 203, the bottom of the annular groove 103 is fixedly provided with a rubber sealing ring 4, the rubber sealing ring 4 is made of nitrile rubber, and the nitrile rubber has good water resistance, air tightness and excellent adhesive property.

Referring to fig. 1 and 3, locating post 204 is cylindrical and the height of locating post 204 is greater than the height of annular flange 203.

Referring to fig. 1, the first threaded hole 102 and the second threaded hole 202 are internally provided with internal threads respectively matching with the external threads on the fastening bolt 5.

Referring to fig. 1 and 2, four reinforcing ribs 7 are respectively fixedly arranged between the first boss 105 and the first flange 1, and between the second boss 205 and the second flange 2.

Referring to fig. 1, a flange gasket 8 is disposed between the first flange 1 and the second flange 2.

Example two

Referring to fig. 4, a split type flange for connecting municipal works pipeline, the difference with embodiment one lies in: the positioning column 204 is cylindrical at the lower end and pillar-shaped at the upper end, and the diameter of the upper end of the pillar is smaller than that of the lower end of the cylinder, that is, the diameter of the upper end of the pillar is smaller than the inner diameter of the positioning hole 8, so that when the first flange 1 and the second flange 2 are installed, the pillar can rapidly extend into the positioning hole 104, and the assembly efficiency is further improved.

When the utility model is used, the annular groove 103 is arranged on the first flange 1, the annular flange 203 is arranged on the second flange 2, when the first flange 1 and the second flange 2 are assembled, the annular flange 203 can extend into the annular groove 103, and the annular flange 203 and the annular groove 103 are in interference fit, and the rubber sealing ring 4 is arranged in the annular groove 103, so that the sealing performance of the joint surface of the first flange 1 and the second flange 2 is better, the sealing effect can not be weakened due to the movement of the flange gasket 8, and the flange can be applied to high-pressure places; through set up a plurality of locating holes 104 on first flange 1, set up a plurality of reference columns 204 on second flange 2, when first flange 1 and second flange 2 need to be installed, at first remove second flange 2 to the direction of first flange 1, rotate second flange 2 and make reference column 204 stretch into the inside to locating hole 104, first screw hole 102 and the matching of second screw hole 202 have been accomplished promptly, operating personnel stretches into fastening bolt 5 to the inside of first screw hole 102 and second screw hole 202 in proper order this moment, and be connected fastening nut 6 with fastening bolt 5 can, the efficiency of assembly has been improved, the time of assembly has been saved.

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 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

1. The utility model provides a split type flange of municipal works line pipe, includes first flange (1) and second flange (2), and sets up engineering pipe (3) between first flange (1) and second flange (2), its characterized in that: the end part of the first flange (1) is uniformly provided with a plurality of first threaded holes (102), the end part of the second flange (2) is provided with a plurality of second threaded holes (202) at positions corresponding to the plurality of first threaded holes (102), the end part of the first flange (1) is provided with an annular groove (103), the end part of the second flange (2) is integrally provided with an annular flange (203) at a position corresponding to the annular groove (103), the annular flange (203) and the annular groove (103) are in interference fit, the end part of the first flange (1) is uniformly provided with a plurality of positioning holes (104), the second flange (2) is integrally provided with a plurality of positioning columns (204) at positions corresponding to the plurality of positioning holes (104), the middle part of the first flange (1) is integrally provided with a first boss (105), and the middle part of the second flange (2) is integrally provided with a second boss (205), fastening bolts (5) are arranged inside the first threaded holes (102) and the second threaded holes (202), and fastening nuts (6) are connected to the end portions of the fastening bolts (5) in a threaded mode.

2. The split type connecting flange of the municipal engineering line pipeline according to claim 1, characterized in that: the middle parts of the first flange (1) and the second flange (2) are respectively provided with a first through hole (101) and a second through hole (201), and the engineering pipeline (3) is arranged between the first through hole (101) and the second through hole (201).

3. The split type connecting flange of the municipal engineering line pipeline according to claim 1, characterized in that: the depth of the annular groove (103) is larger than the height of the annular flange (203), a rubber sealing ring (4) is fixedly arranged at the bottom of the annular groove (103), and the rubber sealing ring (4) is made of nitrile rubber.

4. The split type connecting flange of the municipal engineering line pipeline according to claim 1, characterized in that: the positioning column (204) is cylindrical, and the height of the positioning column (204) is greater than that of the annular flange (203).

5. The split type connecting flange of the municipal engineering line pipeline according to claim 1, characterized in that: internal threads matched with the external threads on the fastening bolt (5) are respectively formed in the first threaded hole (102) and the second threaded hole (202).

6. The split type connecting flange of the municipal engineering line pipeline according to claim 1, characterized in that: a plurality of reinforcing ribs (7) are respectively and fixedly arranged between the first boss (105) and the first flange (1) and between the second boss (205) and the second flange (2).

7. The split type connecting flange of the municipal engineering line pipeline according to claim 1, characterized in that: a flange gasket (8) is arranged between the first flange (1) and the second flange (2).