CN214197684U - Compact flange - Google Patents

Abstract

The utility model relates to a technical field of flange, in particular to inseparable formula flange. The adhesive comprises a base, an adhesive layer and a sealing film, wherein the base is annular, and a bolt fastening hole and a central hole are formed in the base; the top surface of the adhesive layer is fixedly connected with the bottom surface of the base, and the bottom surface of the adhesive layer is provided with a sealing film. By adopting the technical scheme, the sealing performance and the ageing resistance are good, the structure is simple, and the applicability is wide.

Description

Compact flange

Technical Field

The utility model relates to a technical field of flange, in particular to inseparable formula flange.

Background

The existing pipeline connection is usually connected by flanges, and the positive flange and the negative flange are connected by fastening screws during flange connection. To ensure the sealing performance of the positive and negative flange joints, flange gaskets are usually clamped in the positive and negative flange joints. However, the phenomenon of poor sealing performance still occurs when the flange gasket is aged, and time and labor are wasted when the flange gasket is replaced, which is a defect of the prior art.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an inseparable formula flange, solve the not enough of prior art. In order to achieve the purpose, the invention provides the following technical scheme:

a tight flange comprises a base, an adhesive layer and a sealing film, wherein the base is in a ring shape and is provided with a bolt fastening hole and a central hole; the top surface of the adhesive layer is fixedly connected with the bottom surface of the base, and the bottom surface of the adhesive layer is provided with a sealing film.

Preferably, the thickness of the adhesive layer is 2-4 cm.

Preferably, the adhesive layer is a polyurethane layer.

Preferably, the sealing film is an anti-oxidation heat insulation film.

Preferably, the adhesive layer is anaerobic adhesive.

Adopt above-mentioned technical scheme, be provided with the adhesive layer because of flange base bottom surface, when positive negative flange butt joint, the adhesive layer warp and fills the butt joint department space, and is better than prior art leakproofness, ageing resistance, simple structure, extensive applicability has solved the not enough of prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic sectional structure of the present invention;

in the figure: 1-base, 2-sealing film, 3-adhesive layer, 4-center hole, and 5-bolt fastening hole.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1:

a tight flange comprises a base 1, an adhesive layer 3 and a sealing film 2, wherein the base 1 is annular, and the base 1 is provided with a bolt fastening hole 5 and a central hole 4; the top surface of the adhesive layer 3 is fixedly connected with the bottom surface of the base 1, and the bottom surface of the adhesive layer 3 is provided with a sealing film 2. The thickness of the adhesive layer 3 is 2-4 cm. The adhesive layer 3 is a polyurethane layer. The sealing film 2 is an anti-oxidation heat insulation film. The adhesive layer 3 is anaerobic adhesive.

During installation, the sealing film 2 is torn off, the two flange center holes 4 are aligned and connected, the adhesive layer 3 deforms through extrusion, the gap between the flanges is filled, the connectivity and the tightness between the flanges are enhanced, and finally the bolts are installed in the bolt fastening holes 5 for fastening.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims (5)

1. A compact flange is characterized in that: the compact flange comprises a base, an adhesive layer and a sealing film, wherein the base is annular, and a bolt fastening hole and a central hole are formed in the base; the top surface of the adhesive layer is fixedly connected with the bottom surface of the base, and the bottom surface of the adhesive layer is provided with a sealing film.

2. A compact flange as defined in claim 1, wherein: the thickness of the adhesive layer is 2 cm-4 cm.

3. A compact flange according to claim 1 or 2, characterized in that: the adhesive layer is a polyurethane layer.

4. A compact flange as defined in claim 1, wherein: the sealing film is an anti-oxidation heat insulation film.

5. A compact flange according to claim 1 or 2, characterized in that: the adhesive layer is an anaerobic adhesive layer.

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