CN208935609U - Rabbet annular groove interface waterproof flange head - Google Patents

Abstract

Rabbet annular groove interface waterproof flange head, including ring flange (1), inner hole (2), tail pipe (4), capillary groove (5) and inner bushing ring (6)；There is the capillary groove (5) of annular on ring flange (1) front end face, ring flange (1) rear portion union tail (4), ring flange (1) axially has the inner hole (2) being connected to tail pipe (4) inside, in inner hole (2) leading portion bushing inner bushing ring (6).Binding end face ring slot and liner ring structure, while reinforcing the annular groove static sealing of flange faying face and the composite strengthening effect of inner bushing ring dynamic sealing, effectively prevent the disengaging of pipe fitting, flange connections are avoided leakage phenomenon occur, manufacturing cost is low, and structure is concise, installs and uses Portable safety.

Description

Rabbet annular groove interface waterproof flange head

Technical field

The utility model relates to the structure improved technologies of plastic cement flange head pipe fitting, especially interlocking annular groove interface waterproof flange Head.

Background technique

Ring flange abbreviation flange, mechanically using very extensively.The medium intermediate for pipe fitting connection is a kind of energy generation It is plastically deformed and there is annulus made of the material of some strength.Ring flange (flange) is to provide screw or rivet is coupled two The discoid that a pipe fitting is used, around binding site, the advantages of this engaging member be when being coupled pipe fitting to pipe fitting not It causes to damage.PE pipe flange head does not have bolt hole, the steel casing flange of one large diameter of surface cover usually on it, with casing Flange is pressing against PE pipe flange and other flanged joints.

In the prior art, it generallys use two flanges to be used cooperatively, the flange head product of some injection moldings, due to end face of flange It is excessively smooth, be easy to cause pipe fitting to be detached from, directly affect leakproofness, junction will appear leakage phenomenon.

Utility model content

The purpose of the utility model is to provide interlocking annular groove interface waterproof flange heads, and structure is simple, easy to use, installation letter Just, good airproof performance.

The purpose of this utility model will be realized by following technical measures: including ring flange, inner hole, tail pipe, capillary groove And inner bushing ring；There is the capillary groove of annular on ring flange front end face, ring flange rear portion union tail, ring flange and tail pipe inside are axial There is the inner hole of connection, in inner hole leading portion bushing inner bushing ring.

Especially, inner bushing ring internal diameter is identical as bore inner diameter.

Especially, ring flange rear portion is by the consecutive union tail of taper, and wherein flange external diameter is greater than the consecutive front end of taper Outer diameter, the consecutive front end external diameter of taper are greater than the consecutive rear end outer diameter of taper, and the consecutive rear end outer diameter of taper is equal to tail pipe outer diameter, in tail pipe Diameter is identical as bore inner diameter.

Especially, inner bushing ring front end face is concordant with ring flange front end face.

Especially, inner bushing ring front end external diameter is greater than inner bushing ring rear end outer diameter.

Especially, the axial length of inner bushing ring is greater than flange thickness.

The advantages of the utility model and effect: binding end face ring slot and liner ring structure, while reinforcing flange faying face Annular groove static sealing and the effect of the composite strengthening of inner bushing ring dynamic sealing, effectively prevent the disengaging of pipe fitting, avoid flanged joint There is leakage phenomenon in place, and manufacturing cost is low, and structure is concise, installs and uses Portable safety.

Detailed description of the invention

Fig. 1 is 1 axis geodesic structure schematic diagram of the utility model embodiment.

Fig. 2 is 1 main view end structure illustration of the utility model embodiment.

Fig. 3 is 1 overlooking structure diagram of the utility model embodiment.

Appended drawing reference includes:

Ring flange 1, inner hole 2, taper be consecutive 3, tail pipe 4, capillary groove 5, inner bushing ring 6.

Specific embodiment

The utility model principle is that 5 structure of end face of flange capillary groove can effectively promote end face combination and sealing effect, Further, for the limitation of flange manufacturer's standard and erection code, flange connection surface must be kept substantially in a free state It is smooth, it is contemplated that being connect with tubing or pipe fitting in use, main first on pipeline passway need to consider flowing in ring flange 1 In the biggish situation of body pressure, the how adaptive limited enhancing sealing effect of utilization runner inner wall pressure-bearing of ring flange 1.

The utility model includes: ring flange 1, inner hole 2, tail pipe 4, capillary groove 5 and inner bushing ring 6.

The utility model is described in further detail with reference to the accompanying drawings and examples.

Embodiment 1: as shown in Fig. 1, there is the capillary groove 5 of annular on 1 front end face of ring flange, 1 rear portion of ring flange connects tail Pipe 4, ring flange 1 axially has the inner hole 2 being connected to 4 inside of tail pipe, in 2 leading portion bushing inner bushing ring 6 of inner hole.

In aforementioned, 6 internal diameter of inner bushing ring is identical as 2 internal diameter of inner hole.

In aforementioned, 1 rear portion of ring flange is by consecutive 3 union tail 4 of taper, and wherein 1 outer diameter of ring flange is greater than taper consecutive 3 Front end external diameter, consecutive 3 front end external diameter of taper are greater than the consecutive 3 rear end outer diameter of taper, and the consecutive 3 rear end outer diameter of taper is equal to outside tail pipe 4 Diameter, 4 internal diameter of tail pipe are identical as 2 internal diameter of inner hole.

In aforementioned, 6 front end face of inner bushing ring is concordant with 1 front end face of ring flange.

In aforementioned, 6 front end external diameter of inner bushing ring is greater than 6 rear end outer diameter of inner bushing ring.

In aforementioned, the axial length of inner bushing ring 6 is greater than 1 thickness of ring flange.

In the utility model embodiment, when injection molding manufactures ring flange 1, the straight forming capillary groove 5 on end face, after not needing Continuous reprocessing can save artificial；Meanwhile inner bushing ring 6,2 front inner wall of inner hole and inner bushing ring 6 are connect in 2 front inner wall of inner hole lining Between there is elastic faying face, in the opposite connection installation of two ring flanges 1, capillary groove 5 is accordingly close on end face, while interior 6 front end face of grommet is also accordingly close to；After pipeline connection, when increasing by the Fluid pressure of inner hole 2, two sidelining rings 6 are generated The pressure being axially moveable, simultaneously as the guide function of 2 inner wall of inner hole and 6 faying face of inner bushing ring being inclined outwardly, so that two Sidelining ring 6 is with respect to jam-packed, and pressure is bigger, and jam-packed effect becomes apparent, and also enhances sealing effect with regard to adaptive.

Claims (6)

1. rabbeting annular groove interface waterproof flange head, including ring flange (1), inner hole (2), tail pipe (4), capillary groove (5) and inner bushing ring (6)；It is characterized in that, having the capillary groove (5) of annular, ring flange (1) rear portion union tail (4), method on ring flange (1) front end face Blue disk (1) axially has the inner hole (2) being connected to tail pipe (4) inside, in inner hole (2) leading portion bushing inner bushing ring (6).

2. interlocking annular groove interface waterproof flange head as described in claim 1, which is characterized in that inner bushing ring (6) internal diameter and inner hole (2) internal diameter is identical.

3. interlocking annular groove interface waterproof flange head as described in claim 1, which is characterized in that ring flange (1) rear portion passes through cone Consecutive (3) union tail (4) of shape, wherein ring flange (1) outer diameter is greater than consecutive (3) front end external diameter of taper, consecutive (3) front end of taper Outer diameter be greater than consecutive (3) the rear end outer diameter of taper, consecutive (3) the rear end outer diameter of taper be equal to tail pipe (4) outer diameter, tail pipe (4) internal diameter with Inner hole (2) internal diameter is identical.

4. interlocking annular groove interface waterproof flange head as described in claim 1, which is characterized in that inner bushing ring (6) front end face and method Blue disk (1) front end face is concordant.

5. interlocking annular groove interface waterproof flange head as described in claim 1, which is characterized in that inner bushing ring (6) front end external diameter is big In inner bushing ring (6) rear end outer diameter.

6. interlocking annular groove interface waterproof flange head as described in claim 1, which is characterized in that the axial length of inner bushing ring (6) Greater than ring flange (1) thickness.