CN211231972U

CN211231972U - Anti-drop flange

Info

Publication number: CN211231972U
Application number: CN201922304304.8U
Authority: CN
Inventors: 孙帅
Original assignee: Kunshan Hengyongxiang Mechanical Equipment Manufacturing Co ltd
Current assignee: Kunshan Hengyongxiang Mechanical Equipment Manufacturing Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-11
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses an anti-drop flange, relating to the technical field of flanges, comprising a flange main body, wherein one side of the flange main body is fixed with a first connecting piece, one side of the first connecting piece is connected with an inner pipe, one side of the first connecting piece is provided with a first lug, one side of the first lug is connected with a second connecting piece through a second lug, one side of the second connecting piece is connected with an outer pipe, the anti-drop flange is provided with an inner pipe, an anti-drop sheet and a second bolt, when the anti-drop flange is installed, the inner pipe at one end of the flange main body is connected with the inner part of the outer pipe, after the first lug is matched with the second lug, inserting the second bolt into the through hole, fixing the second bolt with the first nut, fixing the anti-drop sheet on the inner wall of the inner tube, attaching the silica gel to the through hole, when the pressure-bearing type flange is used, the inner pipe bears the pressure of partial pipeline transportation, the fracture of the overlarge connection of the transportation pressure is prevented, and the effect of firm connection of the flange and the pipeline is achieved.

Description

Anti-drop flange

Technical Field

The utility model relates to a flange technical field specifically is an anti-drop flange.

Background

The flange is also called flange plate or flange, the flange is a part for connecting the shaft and the shaft, and is used for connecting pipe ends, the flange connection or flange joint is a detachable connection which is formed by connecting the flange, a gasket and a bolt, and is a group of combined sealing structures, the pipeline flange is a flange for piping in a pipeline device, holes are arranged on the flange, the bolt tightly connects the two flanges, the flanges are sealed by gaskets, the flanges are used in pairs, the low-pressure pipeline can use threaded flanges, the flanges are welded by using more than four kilograms of pressure, the gaskets are added between the two flange plates, and then the flanges are fastened by using the bolt.

Present anti-drop flange, when using for a long time, because the flange is mostly welding and pipeline carry out the closure fixed, produce the phenomenon of rupture after the time of using for a long time easily, the flange joint position drops easily, lead to flange and pipe connection disconnection, influence the connection between the pipeline, make normal operation receive the hindrance, it is comparatively troublesome to maintain, simultaneously multipurpose connecting element fixes when the flange is closed, the live time is longer, the part is ageing easily and is aroused not hard up, if do not have relevant staff to inspect, connecting element causes inside to reveal after using easily, lead to the waste of resource, increase the cost of production operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-drop flange to provide the flange in solving above-mentioned background art and easily drop and the problem that the flange joint was revealed.

In order to achieve the above object, the utility model provides a following technical scheme: one side of the flange main body is fixed with a first connecting piece, one side of the first connecting piece is connected with an inner pipe, one side of the first connecting piece is provided with a first lug, one side of the first lug is connected with a second connecting piece through a second lug, one side of the second connecting piece is connected with an outer pipe, threaded holes are formed in the first connecting piece and the second connecting piece, a first bolt is connected inside the threaded hole, a second nut is sleeved at one end of the first bolt, a through hole is formed in the outer surface of the outer pipe, an anti-falling piece is connected inside the through hole through the second bolt, and the second nut is sleeved at the top of the second bolt.

Preferably, the first bump is matched with the second bump.

Preferably, the first bolt is threadedly coupled to the threaded hole.

Preferably, the threaded holes are provided in plurality, and the plurality of threaded holes are arranged around one side of the first connecting piece and the other side of the second connecting piece.

Preferably, the diameter of the inner pipe is smaller than that of the outer pipe, and the inner pipe and the outer pipe are detached.

Preferably, the flange body and the outer pipe are welded with the first connecting member and the second connecting member, respectively.

Preferably, the first connecting piece, the first bump, the second bump and the second connecting piece are sequentially arranged from left to right

Compared with the prior art, the beneficial effects of the utility model are that: the anti-drop flange is provided with an inner pipe, an anti-drop sheet and a second bolt, when in installation, the inner pipe at one end of a flange main body is connected inside an outer pipe, after a first lug is matched with a second lug, the second bolt is inserted into a through hole and then is fixed by a first nut, the anti-drop sheet is fixed on the inner wall of the inner pipe, silica gel is attached to the through hole, when the anti-drop flange is used, the inner pipe bears partial pressure of pipeline transportation, the fracture of the connection caused by overlarge transportation pressure is prevented, the firm connection effect of the flange and the pipeline is achieved, the problem that the flange is easy to drop is solved, meanwhile, the first lug, the second lug and a threaded hole are arranged, when the anti-drop flange is used, the inner pipe is arranged inside the outer pipe, no connecting gap exists between the flanges, the concave-convex structures in the first lug and the second lug are matched, the internal substances are prevented from flowing out from the connecting, the effect of preventing between the flange joint sealed tightly has been reached, has solved the problem that flange joint was revealed easily.

Drawings

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

FIG. 2 is a schematic view of the cross-sectional structure of the flange main body of the present invention;

FIG. 3 is a schematic side view of the flange main body of the present invention;

FIG. 4 is a schematic view of the inner structure of the inner tube of the present invention;

fig. 5 is a schematic view of the internal structure of the outer tube of the present invention.

In the figure: 1. a flange body; 2. an outer tube; 3. an inner tube; 4. a first connecting member; 5. a first nut; 6. a second nut; 7. a first bolt; 8. a threaded hole; 9. a second connecting member; 10. a first bump; 11. an anti-drop sheet; 12. a second bump; 13. a through hole; 14. and a second bolt.

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 present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "fixed," "sleeved," and the like are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, can be connected inside two elements or can be in an interaction relationship between the two elements, and the specific meaning of the terms in the present invention can be understood according to specific situations by those skilled in the art

Referring to fig. 1-5, the present invention provides a technical solution: an anti-falling flange comprises a flange main body 1, an outer pipe 2, an inner pipe 3, a first connecting piece 4, a first nut 5, a second nut 6, a first bolt 7, a threaded hole 8, a second connecting piece 9, a first lug 10, an anti-falling piece 11, a second lug 12, a through hole 13 and a second bolt 14, wherein the first connecting piece 4 is fixed on one side of the flange main body 1, the inner pipe 3 is connected on one side of the first connecting piece 4, the first lug 10 is arranged on one side of the first connecting piece 4, the second connecting piece 9 is connected on one side of the first lug 10 through the second lug 12, the outer pipe 2 is connected on one side of the second connecting piece 9, the threaded holes 8 are respectively arranged inside the first connecting piece 4 and the second connecting piece 9, the first bolt 7 is connected inside the threaded hole 8, the second nut 6 is sleeved on one end of the first bolt 7, the through hole 13 is arranged on the outer surface of the outer pipe 2, the inside of through-hole 13 is connected with anticreep piece 11 through second bolt 14, second nut 6 is cup jointed at the top of second bolt 14, prevents that the bolt from shifting.

Referring to fig. 1-5, the first bump 10 is adapted to the second bump 12 to increase the structural connectivity, and the first bolt 7 is screwed into the threaded hole 8 to keep the structure tight.

Referring to fig. 1-5, a plurality of threaded holes 8 are provided, and the plurality of threaded holes 8 are disposed around one side of the first connecting member 4 and the other side of the second connecting member 9, and are fixed and placed loosely in all directions, the diameter of the inner tube 3 is smaller than that of the outer tube 2, and the inner tube 3 and the outer tube 2 are detached and disposed, so that flange installation is facilitated.

Referring to fig. 1 to 5, the flange body 1 and the outer tube 2 are welded to the first connecting member 4 and the second connecting member 9, respectively, to secure the internal structure, and the first connecting member 4, the first protrusion 10, the second protrusion 12, and the second connecting member 9 are sequentially arranged from left to right, so as to be tightly connected to prevent leakage.

The working principle is as follows: firstly, the structural integrity of the flange main body 1 is confirmed without any defect, when the flange main body is installed, the inner pipe 3 at one end of the flange main body 1 is connected inside the outer pipe 2, after the first lug 10 is matched with the second lug 12, the second bolt 14 is inserted from the through hole 13 and then fixed by the first nut 5, the anti-falling sheet 11 is fixed on the inner wall of the inner pipe 3, silica gel of the anti-falling sheet 11 is attached to the through hole 13, when the inner pipe 3 is inside the outer pipe 2 during use, no connecting gap exists between the flanges, the concave-convex structures in the first lug 10 and the second lug 12 are matched, the internal substances are prevented from flowing out from the connecting position, the first bolt 7 is rotated from the threaded hole 8, and the second nut 6 is used for fixing, so that internal leakage is prevented.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-drop flange, includes flange main part (1), its characterized in that: a first connecting piece (4) is fixed on one side of the flange main body (1), an inner pipe (3) is connected on one side of the first connecting piece (4), a first convex block (10) is arranged on one side of the first connecting piece (4), one side of the first convex block (10) is connected with a second connecting piece (9) through a second convex block (12), one side of the second connecting piece (9) is connected with an outer tube (2), the first connecting piece (4) and the second connecting piece (9) are both internally provided with threaded holes (8), a first bolt (7) is connected inside the threaded hole (8), a second nut (6) is sleeved at one end of the first bolt (7), the outer surface of the outer pipe (2) is provided with a through hole (13), the inside of the through hole (13) is connected with an anti-falling piece (11) through a second bolt (14), and the top of the second bolt (14) is sleeved with a second nut (6).

2. A drop-preventing flange according to claim 1, wherein: the first projection (10) is adapted to the second projection (12).

3. A drop-preventing flange according to claim 1, wherein: the first bolt (7) is matched and in threaded connection with the threaded hole (8).

4. A drop-preventing flange according to claim 1, wherein: the threaded holes (8) are arranged in a plurality of numbers, and the threaded holes (8) are arranged on one side of the first connecting piece (4) and the other side of the second connecting piece (9) in a surrounding mode.

5. A drop-preventing flange according to claim 1, wherein: the diameter of the inner pipe (3) is smaller than that of the outer pipe (2), and the inner pipe (3) and the outer pipe (2) are detached.

6. A drop-preventing flange according to claim 1, wherein: the flange main body (1) and the outer pipe (2) are respectively welded with the first connecting piece (4) and the second connecting piece (9).

7. A drop-preventing flange according to claim 1, wherein: the first connecting piece (4), the first bump (10), the second bump (12) and the second connecting piece (9) are sequentially arranged from left to right.