CN212868938U

CN212868938U - High-wear-resistance corrugated pipe

Info

Publication number: CN212868938U
Application number: CN202021567240.7U
Authority: CN
Inventors: 祝志刚
Original assignee: Jiangsu Sanyi Pipe Industry Co ltd
Current assignee: Jiangsu Sanyi Pipe Industry Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-02
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a high wearability bellows, including ripple expansion joint, bellows top layer, inner tube, external screwed joint, card strip, clamp, toughness layer, bellows basic unit, compressive layer and waterproof coating. The clamp and the external thread joint are beneficial to the installation and connection of two ends of the corrugated pipe, the clamp strip can change the diameter of a pipeline which can be connected with the corrugated pipe, the surface layer of the corrugated pipe is relatively wear-resistant, the wear of the surface of the corrugated pipe is reduced, and the corrugated pipe is beneficial to the long-term use; when the corrugated pipe is used, the tensile resistance of the corrugated pipe can be improved by the toughness layer, the corrugated pipe can be bent to use, the pressure resistance and the high temperature resistance of the corrugated pipe can be reduced by the pressure resistance layer, the application range of the corrugated pipe is expanded, the waterproof coating can protect the pressure resistance layer from water, and the hydrolysis of the pressure resistance layer is reduced.

Description

High-wear-resistance corrugated pipe

Technical Field

The utility model relates to a detection device specifically is a high abrasion bellows, belongs to surface fabric detection device application technical field.

Background

The corrugated pipe is a tubular elastic sensitive element which is formed by connecting foldable corrugated sheets along the folding and stretching direction. The corrugated pipe has wide application in instruments and meters, and is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The corrugated pipe has thin pipe wall and high sensitivity, and the measurement range is from tens of Pa to tens of MPa.

The internal diameter at bellows both ends is comparatively fixed, and the pipeline scope of joinable is limited, is unfavorable for adjusting the pipeline scope of bellows joinable, and the bellows surface is wear-resisting, influences life, and the stretch-proofing performance of bellows is not enough, receives the damage when tensile and crooked easily, and the bellows is inside to lack withstand voltage and high temperature resistance protection architecture, has reduced the application range of bellows. Therefore, a corrugated tube with high wear resistance is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a highly wear-resistant bellows for solving the above problems.

The utility model realizes the purpose by the following technical proposal, a high-wear-resistance corrugated pipe comprises a plurality of corrugated expansion joints, a corrugated pipe surface layer and an external thread joint, wherein the corrugated expansion joints are fixedly connected on the corrugated pipe surface layer and are sleeved outside the corrugated pipe surface layer, two ends of the corrugated pipe surface layer are respectively provided with a clamp and the external thread joint, and the external thread joint is sleeved inside the corrugated pipe surface layer through an inner pipe;

bellows top layer bottom rigid coupling has the toughness layer, the inboard rigid coupling of toughness layer has bellows basic unit and resistance to compression layer, the internal rigid coupling of resistance to compression layer has waterproof coating.

Preferably, the clamp is sleeved on the upper side and the lower side of the outer portion of the surface layer of the corrugated pipe, one side, close to the surface layer of the corrugated pipe, of the clamp is arc-shaped, and the two ends of the clamp are connected through bolts.

Preferably, the left end of the external thread joint is fixedly connected with an inner pipe, the inner pipe is in threaded connection with the inner cavity of the surface layer of the corrugated pipe, and the diameter of the inner cavity of the inner pipe is smaller than that of the right end of the external thread joint.

Preferably, an external thread is formed on one side, close to the clamping strip, of the external thread joint, the clamping strip surrounds an annular ring at the tail end of the external thread joint, and the diameter of the annular ring is smaller than that of the inside of the waterproof coating.

Preferably, the bellows top layer adopts the nylon fiber to make, the thickness on bellows top layer is less than the toughness layer, toughness layer surface rigid coupling has the TPU layer, the inboard rigid coupling of toughness layer has the bellows basic unit.

Preferably, the compression-resistant layer is made of PC plastic, the compression-resistant layer is fixedly connected between the tough layer and the waterproof coating, and the thickness of the compression-resistant layer is the same as that of the corrugated pipe base layer.

The utility model has the advantages that:

1. the clamp and the external thread joint are beneficial to the installation and connection of two ends of the corrugated pipe, the clamp strip can change the diameter of a pipeline which can be connected with the corrugated pipe, the surface layer of the corrugated pipe is relatively wear-resistant, the wear of the surface of the corrugated pipe is reduced, and the corrugated pipe is beneficial to the long-term use;

2. when the corrugated pipe is used, the tensile resistance of the corrugated pipe can be improved by the toughness layer, the corrugated pipe can be bent to use, the pressure resistance and the high temperature resistance of the corrugated pipe can be reduced by the pressure resistance layer, the application range of the corrugated pipe is expanded, the waterproof coating can protect the pressure resistance layer from water, and the hydrolysis of the pressure resistance layer is reduced.

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 the drawings without inventive exercise.

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

FIG. 2 is a schematic structural view of the expansion joint of the present invention;

fig. 3 is a schematic view of the external thread joint structure of the present invention;

fig. 4 is a schematic diagram of the structure of the flexible layer of the present invention.

In the figure: 1. ripple expansion joint, 2, bellows top layer, 3, inner tube, 4, external screwed joint, 5, card strip, 6, clamp, 7, toughness layer, 8, bellows basic unit, 9, resistance to compression layer, 10, waterproof coating.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-4, a corrugated pipe with high wear resistance includes corrugated expansion joints 1, a corrugated pipe surface layer 2 and external screw joints 4, the corrugated pipe surface layer 1 is fixedly connected with a plurality of corrugated expansion joints 1, the corrugated expansion joints 1 are sleeved outside the corrugated pipe surface layer 2, two ends of the corrugated pipe surface layer 2 are respectively provided with a hoop 6 and the external screw joints 4, and the external screw joints 4 are sleeved inside the corrugated pipe surface layer 2 through an inner pipe 3;

the bottom of the corrugated pipe surface layer 2 is fixedly connected with a flexible layer 7, the inner side of the flexible layer 7 is fixedly connected with a corrugated pipe base layer 8 and a compression resistant layer 9, and the inner portion of the compression resistant layer 9 is fixedly connected with a waterproof coating 10.

The hoop 6 is sleeved on the upper side and the lower side of the outer part of the corrugated pipe surface layer 2, one side, close to the corrugated pipe surface layer 2, of the hoop 6 is arc-shaped, and the two ends of the hoop 6 are connected through bolts, so that the left end of the corrugated pipe can be conveniently installed and fixed through the hoop 6; the left end of the external thread joint 4 is fixedly connected with an inner tube 3, the inner tube 3 is in threaded connection with the inner cavity of the surface layer 2 of the corrugated tube, and the diameter of the inner cavity of the inner tube 3 is smaller than that of the right end of the external thread joint 4, so that the diameter range of the right end of the corrugated tube, which can be connected with a pipeline, can be changed conveniently; an external thread is arranged on one side, close to the clamping strip 5, of the external thread joint 4, the clamping strip 5 forms an annular ring in a surrounding mode at the tail end of the external thread joint 4, the diameter of the annular ring is smaller than that of the inside of the waterproof coating 10, and the clamping strip 5 is convenient to fix and use on the external thread joint 4; the corrugated pipe surface layer 2 is made of nylon fibers, the thickness of the corrugated pipe surface layer 2 is smaller than that of the toughness layer 7, the surface of the toughness layer 7 is fixedly connected with a TPU layer, and the inner side of the toughness layer 7 is fixedly connected with a corrugated pipe base layer 8, so that the toughness layer 7 can increase the tensile resistance of the corrugated pipe, and the damage of the corrugated pipe during stretching is reduced; the anti-pressure layer 9 is made of PC plastic, the anti-pressure layer 9 is fixedly connected between the toughness layer 7 and the waterproof coating 10, the thickness of the anti-pressure layer 9 is the same as that of the corrugated pipe base layer 8, pressure resistance and high temperature protection are facilitated for the interior of the corrugated pipe, and the application range of the corrugated pipe is enlarged.

When the utility model is used, firstly, the bolts at the two ends of the clamp 6 can be used for clamping the clamp 6 and the surface layer 2 of the corrugated pipe, which is beneficial to the installation and fixation of the left end of the surface layer 2 of the corrugated pipe, the inner pipe 3 is convenient for sheathing the external thread joint 4 in the inner cavity of the right end of the corrugated pipe, the external thread joint 4 is provided with external threads, which is convenient for connecting a pipeline with larger diameter at the right end of the corrugated pipe, gaps are arranged between the clamping strips 5, the enclosed annular ring has elasticity and can be sheathed in the pipeline with smaller diameter, the diameter range of the pipeline which the right end of the corrugated pipe can be connected is changed, which is beneficial to the installation and the use of the corrugated pipe, the surface layer 2 of the corrugated pipe is made of multilayer nylon, which is wear-resistant, durable and corrosion-resistant, can protect the inside of the corrugated pipe, the, do benefit to the bellows and stretch and crooked in production and use, bellows basic unit 8 is favorable to the connection between each layer of bellows, and resistance to compression layer 9 is PC plastics, and shock resistance and withstand voltage keep the bellows normal use, also can protect the bellows under the high temperature condition, enlarge the application range of bellows, and waterproof coating 10 is polyurethane waterproof coating, can resist the waterproof protection of PC plastics in the layer 9, avoids PC plastics to hydrolyze, influences the inside resistance to compression effect of bellows.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A high wear resistance corrugated pipe is characterized in that: the corrugated expansion joint comprises corrugated expansion joints (1), a corrugated pipe surface layer (2) and external thread joints (4), wherein the corrugated pipe surface layer (2) is fixedly connected with a plurality of corrugated expansion joints (1), the corrugated expansion joints (1) are sleeved outside the corrugated pipe surface layer (2), two ends of the corrugated pipe surface layer (2) are respectively provided with a hoop (6) and the external thread joints (4), and the external thread joints (4) are sleeved inside the corrugated pipe surface layer (2) through inner pipes (3);

bellows top layer (2) bottom rigid coupling has toughness layer (7), toughness layer (7) inboard rigid coupling has bellows basic unit (8) and resistance to compression layer (9), the inside rigid coupling of resistance to compression layer (9) has water proof coating (10).

2. A high abrasion resistant corrugated pipe as claimed in claim 1, wherein: the clamp (6) is sleeved on the upper side and the lower side of the outer portion of the corrugated pipe surface layer (2), one side, close to the corrugated pipe surface layer (2), of the clamp (6) is arc-shaped, and the two ends of the clamp (6) are connected through bolts.

3. A high abrasion resistant corrugated pipe as claimed in claim 1, wherein: the left end of the external thread connector (4) is fixedly connected with an inner tube (3), the inner tube (3) is connected with the inner cavity of the corrugated tube surface layer (2) through threads, and the diameter of the inner cavity of the inner tube (3) is smaller than the right end of the external thread connector (4).

4. A high abrasion resistant corrugated pipe as claimed in claim 1, wherein: an external thread is formed in one side, close to the clamping strip (5), of the external thread connector (4), the clamping strip (5) surrounds an annular ring at the tail end of the external thread connector (4), and the diameter of the annular ring is smaller than that of the inside of the waterproof coating (10).

5. A high abrasion resistant corrugated pipe as claimed in claim 1, wherein: bellows top layer (2) adopt the nylon fiber to make, the thickness on bellows top layer (2) is less than toughness layer (7), toughness layer (7) surface rigid coupling has the TPU layer, the inboard rigid coupling of toughness layer (7) has bellows basic unit (8).

6. A high abrasion resistant corrugated pipe as claimed in claim 1, wherein: the pressure-resistant layer (9) is made of PC plastic, the pressure-resistant layer (9) is fixedly connected between the toughness layer (7) and the waterproof coating (10), and the thickness of the pressure-resistant layer (9) is the same as that of the corrugated pipe base layer (8).