CN213809329U

CN213809329U - Steel socket welding pipe fitting

Info

Publication number: CN213809329U
Application number: CN202022686658.6U
Authority: CN
Inventors: 王从水
Original assignee: Tianjin Jiusheng Tongda Technology Co ltd
Current assignee: Tianjin Jiusheng Tongda Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-27
Anticipated expiration: 2030-11-19

Abstract

The utility model provides a steel socket welding pipe fitting, which comprises a flange cover, wherein the lower end of the flange cover is fixed with a fixing bolt, a fixed disc is fixed above the flange cover at the outer surface position of the fixing bolt, the upper end of the fixed disc is connected with a fixing nut at the outer surface position of the fixing bolt through screw thread rotation, a connecting pipe is fixed at the upper end of the fixed disc in the middle of the fixing nut, the flange cover comprises a cover body, a bolt hole is fixed at the upper end of the cover body, a limiting bulge is fixed at the inner surface of the bolt hole, the limiting bulge on the surface of the flange cover can avoid the bolt body from rotating relative to the flange cover because the outer surface contour of the limiting bulge is the same as the inner surface contour of a limiting groove, the fixing bolt can be well avoided from rotating when the flange cover is fixed and disassembled, thereby the flange cover can be taken down by rotating the fixing nut, the fixing speed of the welded pipe fitting and the external pipeline is well accelerated.

Description

Steel socket welding pipe fitting

Technical Field

The utility model relates to the field of pipelines, especially, relate to a steel socket joint welding pipe fitting.

Background

Socket welding pipe fittings, namely welding flanges, are parts for connecting pipes with each other and are connected to pipe ends, holes are formed in the welding flanges, the two flanges are tightly connected through bolts and sealed through gaskets, and the welding flanges are disc-shaped parts and are most common in pipeline engineering.

However, the socket welding pipe is connected with the flange cover through the bolt when in use, and the bolt and the nut need to be rotated simultaneously when the flange cover is fixed and detached due to the fact that the surface of the pipe is not limited, so that the flange cover is very troublesome to open.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel socket joint welding pipe fitting to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: the utility model provides a steel socket joint welding pipe fitting, includes the blind flange, the lower extreme of blind flange is fixed with fixing bolt, the top of blind flange is fixed with the fixed disk in fixing bolt's surface position department, the upper end of fixed disk is connected with fixation nut through screw thread rotation in fixing bolt's surface position department, fixation nut's centre is fixed with the connecting pipe in the upper end of fixed disk, the blind flange includes the lid, the upper end of lid is fixed with the bolt hole, the internal surface fixing of bolt hole has the spacing arch.

Preferably, the rear end of the fixed disk is welded and fixed on the surface of an external pipeline, and the inner surface of the fixed nut is provided with threads.

Preferably, the surface of the fixed disk is provided with an opening, and the diameter of the inner surface of the opening is equal to that of the inner surface of the bolt hole.

Preferably, the fixing bolt comprises a bolt body, and a limiting groove is fixed on the surface of the bolt body.

Preferably, the inner surface profile of the limiting groove is the same as the outer surface profile of the limiting protrusion, and the outer surface of the bolt body is provided with threads and is meshed with the surface threads of the fixing nut.

The utility model has the advantages that:

1. the utility model discloses there is spacing arch on flange lid surface, because spacing protruding surface profile is the same with spacing inslot surface profile, then can avoid the bolt body to rotate for the flange lid, can be fine when fixed and dismantlement flange lid avoid fixing bolt to rotate to single rotation fixation nut can take off the flange lid, fine accelerated the fixed speed of welding pipe fitting and outside pipeline.

2. The utility model discloses there is the spacing groove on fixing bolt surface, the spacing groove can be fine be connected with fixed disk and blind flange to make fixing bolt can't rotate for fixed disk and blind flange, thereby can be fine when fixed disk and outside pipe connection accomplish the fixed to the pipeline through rotating fixation nut, accelerate the fixed speed of pipeline, reduce the engineering time.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the flange cover of the present invention;

fig. 3 is a schematic structural view of the fixing bolt of the present invention;

reference numerals: 1. fixing the disc; 2. fixing the bolt; 3. a flange cover; 4. fixing a nut; 5. a connecting pipe; 21. a limiting groove; 22. a plug body; 31. a cover body; 32. a limiting bulge; 33. bolt holes.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-2, a steel socket welding pipe fitting comprises a flange cover 3, a fixing bolt 2 is fixed at the lower end of the flange cover 3, a fixing disc 1 is fixed at the outer surface position of the fixing bolt 2 above the flange cover 3, a fixing nut 4 is rotatably connected at the outer surface position of the fixing bolt 2 at the upper end of the fixing disc 1 through threads, a connecting pipe 5 is fixed at the upper end of the fixing disc 1 in the middle of the fixing nut 4, the flange cover 3 comprises a cover body 31, a bolt hole 33 is fixed at the upper end of the cover body 31, and a limiting protrusion 32 is fixed on the inner surface of the bolt hole 33.

The method comprises the steps of moving a fixed disk 1 to enable a connecting pipe 5 on the surface of the fixed disk 1 to be aligned with an external pipeline, inserting the connecting pipe 5 into the external pipeline to enable the surface of the pipeline to be in contact with the surface of the fixed disk 1, welding the pipeline on the surface of the fixed disk 1, moving a flange cover 3 to place sealing rubber on the surface of the flange cover 3, extruding the flange cover 3 on the surface of the fixed disk 1, aligning bolt holes on the surface of the flange cover 3 with holes on the surface of the fixed disk 1 when the flange cover 3 is rotated, inserting fixing bolts 2 into the bolt holes on the surface of the flange cover 3 and the holes on the surface of the fixed disk 1, and fixing the fixing bolts 2 on the surface of the fixed disk 1 through fixing nuts 4.

Example 2

As shown in fig. 1-3, a steel socket welding pipe fitting comprises a flange cover 3, a fixing bolt 2 is fixed at the lower end of the flange cover 3, a fixing plate 1 is fixed at the outer surface position of the fixing bolt 2 above the flange cover 3, a fixing nut 4 is rotatably connected at the outer surface position of the fixing bolt 2 at the upper end of the fixing plate 1 through threads, a connecting pipe 5 is fixed at the upper end of the fixing plate 1 in the middle of the fixing nut 4, the fixing bolt 2 comprises a bolt body 22, and a limiting groove 21 is fixed on the surface of the bolt body 22.

Remove fixing bolt 2 and make the bolt body 22 aim at the bolt hole, it makes spacing groove 21 align with spacing arch 32 to rotate the bolt body 22, it makes the bolt body 22 get into inside the bolt hole to remove the bolt body 22, then bolt body 22 gets into the trompil on 1 surface of fixed disk through flange cover 3, then fixing bolt 2 spills fixed disk 1, aim at fixing bolt 2's upper end with fixing nut 4, it is fixed at fixing bolt 2's surface through the screw thread of internal surface then fixing nut 4 to rotate fixing nut 4, because spacing arch 32 card is inside spacing groove 21, then fixing bolt 2 can't rotate for fixed disk 1 and flange cover 3, can be fine avoid fixing bolt 2 to follow fixing nut 4 and rotate when flange cover 3 is fixed and dismantlement, make flange cover 3's installation convenient and fast more.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a steel socket joint welding pipe fitting, includes blind flange (3), its characterized in that: the lower extreme of blind flange (3) is fixed with fixing bolt (2), the top of blind flange (3) is fixed with fixed disk (1) in the surface position department of fixing bolt (2), the upper end of fixed disk (1) is connected with fixation nut (4) through screw thread rotation in the surface position department of fixing bolt (2), the centre of fixation nut (4) is fixed with connecting pipe (5) in the upper end of fixed disk (1), blind flange (3) are including lid (31), the upper end of lid (31) is fixed with bolt hole (33), the internal fixed surface of bolt hole (33) has spacing arch (32).

2. A steel socket-welded pipe according to claim 1, characterized in that: the rear end of the fixed disc (1) is fixed on the surface of an external pipeline in a welding mode, and the inner surface of the fixed nut (4) is provided with threads.

3. A steel socket-welded pipe according to claim 2, characterized in that: the surface of the fixed disc (1) is provided with holes, and the diameter of the inner surface of each hole is equal to that of the inner surface of the bolt hole (33).

4. A steel socket-welded pipe according to claim 1, characterized in that: the fixing bolt (2) comprises a bolt body (22), and a limiting groove (21) is fixed on the surface of the bolt body (22).

5. The steel socket-welded pipe fitting of claim 4, wherein: the inner surface profile of the limiting groove (21) is the same as the outer surface profile of the limiting protrusion (32), and the outer surface of the bolt body (22) is provided with threads and is meshed with the surface threads of the fixing nut (4).