CN216447601U - Unsmooth spacing seal structure of butterfly-shaped clamp - Google Patents

Abstract

The utility model discloses a concave-convex limiting sealing structure of a butterfly-shaped hoop, which comprises two pipe ends, two butterfly-shaped hoops arranged on the pipe ends, a sealing element and an outer hoop, wherein the two butterfly-shaped hoops are respectively provided with an inward concave part, the sealing element is two polyurethane layers which are arranged in the inward concave parts and are lined on the inner walls of the pipe ends, and the sealing element can be tightly contacted after the two butterfly-shaped hoops are tightened by the outer hoop.

Description

Unsmooth spacing seal structure of butterfly-shaped clamp

Technical Field

The utility model relates to a pipeline sealing structure, in particular to a concave-convex limiting sealing structure of a butterfly-shaped hoop.

Background

At present, the method adopted by the pipeline sealing structure in China still generally adds a sealing gasket or utilizes an elastic lining layer to be flanged to the end face of a flange so as to achieve the aim of sealing. However, when a sealing gasket is additionally installed, leakage at a sealing position occurs due to improper installation, and the end faces of the pipelines are positioned and linked by flange holes and are fixed by bolts, so that the concentricity of the pipelines of the sealing structure is difficult to guarantee during connection and the installation is complicated; meanwhile, excessive extrusion can be carried out on the sealing surface, so that the elastic sealing surface of the flange generates shear stress, the elastic lining layer protrudes towards the radial direction of the pipeline, the resistance of fluid in the pipeline is increased, eddy current is generated, the protruding part is worn out quickly, and the service life of the whole pipeline is greatly shortened.

Disclosure of Invention

The utility model aims to overcome the defects and provide a concave-convex limiting and sealing structure of a butterfly-shaped hoop.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a unsmooth spacing seal structure of butterfly-shaped clamp, including two pipe ends and sealing member, two pipe ends comprise upper end and low tube end, be equipped with upper end butterfly-shaped clamp on the upper tube end, the low tube is served and is equipped with lower extreme butterfly-shaped clamp, the interior terminal surface of upper end butterfly-shaped clamp and lower extreme butterfly-shaped clamp is equipped with an interior notch respectively, the sealing member comprises two upper tube polyurethane layers of locating interior notch and lining up in upper tube end inner wall and the low tube polyurethane layer of lining up in low tube end inner wall, upper tube polyurethane layer sealing contact surface is concave type sealing surface, low tube polyurethane layer sealing contact surface is protruding type sealing surface, the matching of inosculating of concave type sealing surface and protruding type sealing surface each other, install outer clamp on two butterfly-shaped conical surface clamps.

The utility model further improves that: a cavity is arranged between the concave sealing surface and the convex sealing surface and between the upper end butterfly-shaped clamp and the lower end butterfly-shaped clamp.

Compared with the prior art, the utility model has the following advantages:

the upper pipe end of the pipe fitting is provided with the upper butterfly-shaped hoop, the lower pipe end of the pipe fitting is provided with the lower butterfly-shaped hoop to replace a common flange structure, and the concave sealing surface and the convex sealing surface are matched with each other in a matched mode, so that the pipe fitting can be accurately and quickly installed, the problem that the concentricity is difficult to guarantee when the pipe end of the original flange structure is connected is solved, the concave sealing surface and the convex sealing surface can play a good sealing role after being tightly attached, and the leakage condition of the connecting position of the pipe end of the flange structure due to the fact that a sealing gasket is not installed in place is avoided.

According to the utility model, the cavity is formed among the concave sealing surface, the convex sealing surface, the upper end butterfly-shaped hoop and the lower end butterfly-shaped hoop, so that the phenomenon that the polyurethane lining layer radially protrudes towards the inner part of the pipe end when the sealing element is extruded by the butterfly-shaped hoops is avoided, the resistance of fluid in the pipeline is increased, eddy current is generated, the protruding part is quickly worn and worn, and the service life of the pipeline is prolonged.

Description of the drawings:

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

FIG. 2 is a schematic view of the outer band construction of the present invention;

reference numbers in the figures: an upper pipe end-1, a concave sealing surface-2, a convex sealing surface-3, an upper butterfly clamp-4, a lower butterfly clamp-5, a lower pipe end-6, an upper pipe polyurethane layer-7, a lower pipe polyurethane layer-8, an outer clamp-9 and a cavity-10.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Elements and features described in one embodiment of the utility model may be combined with elements and features shown in one or more other embodiments. It should be noted that the illustration omits illustration and description of components and processes not relevant to the present invention that are known to those of ordinary skill in the art for clarity purposes. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The utility model is further described below with reference to the accompanying drawings: the utility model provides a unsmooth spacing seal structure of butterfly-shaped clamp, includes two pipe ends and sealing member, two pipe ends comprise top tube end 1 and lower pipe end 6, are equipped with upper end butterfly-shaped clamp 4 on the top tube end 1, are equipped with lower extreme butterfly-shaped clamp 5 on the lower pipe end 6, and the interior terminal surface of upper end butterfly-shaped clamp 4 and lower extreme butterfly-shaped clamp 5 is equipped with an interior concave part respectively, the sealing member comprises two top tube polyurethane layers of locating interior concave part and lining in top tube end 1 inner wall and lining in the lower pipe polyurethane layer 8 of lower pipe end 6 inner wall, and top tube polyurethane layer 7 sealing contact surface is concave type sealing surface 2, and 8 sealing contact surfaces of lower pipe polyurethane layer are protruding type sealing surface 3, and the matching of mutually inosculating of concave type sealing surface 2 and protruding type sealing surface 3 has been accurate, quick installation, has solved the problem of hardly guaranteeing the concentricity when original flange structure pipe end is connected. The concave sealing surface 2 and the convex sealing surface 3 are tightly attached to play a good sealing role, the leakage condition of the pipe end joint of the flange structure caused by the fact that a sealing gasket is not installed in place is avoided, and the outer clamps 9 are installed on the conical surfaces of the two butterfly-shaped clamps.

There is cavity 10 between concave type sealing surface 2, convex type sealing surface 3 and upper end butterfly clamp 4, the lower extreme butterfly clamp 5 for the sealing member can not appear the polyurethane lining when receiving the extrusion of butterfly clamp and radially protruding to the pipe end inside, increases the fluidic resistance in the pipeline and produces the vortex, and the phenomenon that the jut is worn out by quick wearing and tearing has prolonged the life of pipeline. .

When the pipe end is connected, the convex limiting ring is plugged into the concave limiting ring, the outer clamps 9 are arranged on the conical surfaces of the two butterfly clamps, the two butterfly clamps extrude the sealing element by tightening the outer clamps 9, so that the concave sealing surface 2 and the convex sealing surface 3 are tightly attached, and the sealing connection of the pipe end can be completed.

Otherwise, the concave sealing surface 2 and the convex sealing surface 3 can be separated in a loosening way only by loosening the outer clamping hoop 9, so that the aim of disassembling the pipe end is fulfilled.

Finally, it should be noted that: although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, devices, means, methods, or steps.

Claims (2)

1. The utility model provides a unsmooth spacing seal structure of butterfly-shaped clamp, includes two pipe ends and sealing member, its characterized in that: two pipe ends comprise upper pipe end (1) and low tube end (6), are equipped with upper end butterfly clamp (4) on upper pipe end (1), are equipped with lower extreme butterfly clamp (5) on lower pipe end (6), and the interior terminal surface of upper end butterfly clamp (4) and lower extreme butterfly clamp (5) is equipped with an interior concave part respectively, the sealing member comprises upper pipe polyurethane layer (7) and lower pipe polyurethane layer (8) of lining in low tube end (6) inner wall of interior concave part and lining in upper pipe end (1) inner wall by two locating, and upper pipe polyurethane layer (7) sealing contact surface is concave sealing face (2), and lower pipe polyurethane layer (8) sealing contact surface is protruding type sealing face (3), and the matching of coincide each other of concave type sealing face (2) and protruding type sealing face (3), installs outer clamp (9) on two butterfly conical surface clamps.

2. The concave-convex limiting and sealing structure of the butterfly clamp according to claim 1, wherein: a cavity (10) is arranged between the concave sealing surface (2) and the convex sealing surface (3) and between the upper end butterfly clamp (4) and the lower end butterfly clamp (5).

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