CN210890491U - Stainless steel corrugated pipe connecting device - Google Patents

Abstract

The utility model relates to a stainless steel corrugated pipe connecting device, belonging to the technical field of corrugated pipe fittings, comprising an outer shell connected with a corrugated pipe body; a limiting ring is arranged in the outer shell; the limiting rings are at least two; the limiting ring is semicircular; the two limiting rings are arranged at symmetrical positions on the inner wall of the outer shell and encircle the wave troughs of the corrugated pipe body; the limiting ring is connected with the telescopic mechanism; also includes an inner shell; the outer shell is sleeved outside the inner shell; the inlet end of the inner shell is in close contact with the end part of the corrugated pipe body; and a clamping mechanism is arranged between the outer shell and the inner shell. The utility model discloses utilize the spacing ring the same with the bellows shape, cooperation telescopic machanism can be in the outer casing firm tight bellows of clamp, prevents that it from droing. Meanwhile, the inner shell is tightly abutted against the end part of the corrugated pipe from one side, so that liquid (gas) in the corrugated pipe is effectively prevented from leaking or flowing back.

Description

Stainless steel corrugated pipe connecting device

Technical Field

The utility model relates to a connecting device, concretely relates to stainless steel corrugated pipe connecting device belongs to bellows connection accessory technical field.

Background

The connection relationship of the corrugated pipe is divided into two types, one is that the corrugated pipe is connected with devices such as an instrument, a pump body and the like; and the other one is connected with other corrugated pipes to prolong the conveying length. If the requirement on the tightness is high, the corresponding valve body is adopted for connection, but the valve body is high in price, so that a simple connecting device is adopted under general conditions. The connecting device in the prior art almost adopts fasteners such as buckles, fixing blocks and the like to connect and fix the corrugated pipe in a pipe body, and then the pipe body is connected to other instrument devices. The defects of the connection mode are obvious, firstly, the connection firmness degree is low and the loosening is very easy only by means of clamping and the like; secondly, adopt similar method, can not closely laminate between bellows and the body, because the bellows all applies to the transport liquid under many circumstances, in case the gap between bellows and the body is great, the condition such as liquid backward flow appears easily, reveals. Therefore, there is a need for a new type of connection device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the stainless steel corrugated pipe connecting device is simple and reasonable in structure, firm in connection and capable of effectively avoiding leakage.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows: a stainless steel corrugated pipe connecting device comprises an outer shell connected with a corrugated pipe body, wherein a limiting ring is arranged in the outer shell; the limiting rings are at least two; the limiting ring is semicircular; the two limiting rings are arranged at symmetrical positions on the inner wall of the outer shell and encircle the wave troughs of the corrugated pipe body; the limiting ring is connected with the telescopic mechanism; also includes an inner shell; the outer shell is sleeved outside the inner shell; the inlet end of the inner shell is in close contact with the end part of the corrugated pipe body; and a clamping mechanism is arranged between the outer shell and the inner shell.

Preferably, the inner wall of the outer shell is provided with a limiting groove for accommodating a limiting ring; the diameters of the two limiting rings are smaller than or equal to the diameter of the corrugated pipe body.

Preferably, the telescopic mechanism comprises a telescopic rod connected with the limiting ring; the handle is arranged on the outer side of the outer shell.

Preferably, the sleeve is fixedly connected to the outer shell; the sleeve is provided with a middle hole towards one side of the outer shell; the telescopic rod is hinged with the end part of the handle; the upper part of the telescopic rod is provided with threads and is connected with a bolt.

Preferably, one end of the handle is arranged at the middle position of the telescopic rod; the outer side of the sleeve is provided with an assembling hole relative to the handle; the handle is rotatably connected in the assembling hole; the other end of the handle is positioned outside the sleeve.

Preferably, the telescopic mechanisms correspond to the limiting rings one to one.

Preferably, the radius of the inner shell is equal to the radius of the corrugated pipe body; the clamping mechanism comprises internal threads arranged on the inner wall of the outer shell; and the outer thread is arranged on the outer wall of the inner shell.

Preferably, the external thread is matched with the internal thread; the internal thread is positioned at the middle rear part of the inner wall of the outer shell; the external threads are distributed on the outer wall of the inner shell; the inner shell is connected with the pipeline assembly through external threads.

The utility model discloses utilize the spacing ring the same with the bellows shape, cooperation telescopic machanism can be in the outer casing firm tight bellows of clamp, prevents that it from droing. Meanwhile, the inner shell is tightly abutted against the end part of the corrugated pipe from one side, so that liquid (gas) in the corrugated pipe is effectively prevented from leaking or flowing back.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is a schematic structural diagram of the present invention in an operating state.

Fig. 3 is a schematic structural diagram of the outer shell.

Fig. 4 is an enlarged view of part a.

In the figure, 1 is the bellows body, 2 is the shell body, 2.1 is the internal thread, 3 is the spacing ring, 4 is interior casing, 4.1 is the external screw thread, 5 is the telescopic link, 6 is the sleeve, 7 is the handle.

Detailed Description

The terms and words used in the following specification and claims are not limited to the literal meanings, but are used only by the person of the invention to enable a clear and consistent understanding of the invention. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number. While ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used only to distinguish one element from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the teachings of the present inventive concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

Terms used herein, including technical and scientific terms, have the same meaning as terms commonly understood by one of ordinary skill in the art, unless otherwise defined. It will be understood that terms defined in commonly used dictionaries have meanings that are consistent with their meanings in the prior art.

Referring to fig. 1-4, a stainless steel corrugated pipe connecting device comprises an outer shell 2 connected with a corrugated pipe body 1, wherein a limiting ring 3 is arranged in the outer shell 2; the number of the limiting rings 3 is at least two; the limiting ring 3 is semicircular; the two limiting rings 3 are arranged at symmetrical positions on the inner wall of the outer shell 2 and encircle the wave troughs of the corrugated pipe body 1; the limiting ring 3 is connected with a telescopic mechanism; also comprises an inner shell 4; the outer shell 2 is sleeved outside the inner shell 4; the inlet end of the inner shell 4 is tightly contacted with the end of the corrugated pipe body 1; a clamping mechanism is arranged between the outer shell 2 and the inner shell 4.

Specifically, after the corrugated pipe body 1 is inserted into the outer shell, the telescopic mechanism is operated, and the limiting ring 3 is pushed in along the radial direction by the telescopic mechanism, so that the corrugated pipe body is clamped by the limiting ring 3 and is not easy to fall off. Then push the inner shell 4 towards the inner of the outer shell 2, so that the side wall of the end part of the inner shell 4 is tightly abutted against the side wall of the end part of the corrugated pipe body 1, thereby preventing gas-liquid backflow or leakage.

Furthermore, the inner wall of the outer shell 2 is provided with a limit groove 4.1 for accommodating a limit ring; the diameters of the two limiting rings 3 are smaller than or equal to the diameter of the corrugated pipe body 1.

Specifically, in the present embodiment, the inner side of the outer casing 2 is provided with the limiting groove 4.1, so that the limiting ring 3 is disposed in the limiting groove 4.1 without affecting the space inside the outer casing 2. In this embodiment, the stop collar 3 has a smaller radius than the bellows body.

Furthermore, the telescopic mechanism comprises a telescopic rod 5 connected with the limiting ring; and also comprises a sleeve 6 and a handle 7 which are arranged outside the outer shell 2.

Further, the sleeve 6 is fixedly connected to the outer shell 2; a middle hole is formed in one side, facing the outer shell 2, of the sleeve 6; the telescopic rod is hinged with the end part of the handle; the upper part of the telescopic rod is provided with threads and is connected with a bolt.

Specifically, in the present embodiment, the handle 7 controls the telescopic rod 5 by the principle of lever. It can be understood that when the limiting ring 3 needs to be pushed inwards, the handle 7 is lifted upwards, the telescopic rod 5 extends into the outer shell at the moment, the limiting ring 3 moves towards the corrugated pipe body 1, and after the limiting ring 3 is clamped into the trough of the corrugated pipe, the nut is screwed downwards from the thread on the upper part of the telescopic rod (because at the moment, the limiting ring 3 is clamped into the limiting ring, the whole telescopic rod 5 cannot rotate relatively, and the bolt can be screwed) so as to limit the position of the limiting ring 3 and cannot move along the radial direction.

Furthermore, one end of the handle 7 is arranged at the middle position of the telescopic rod 5; the outer side of the sleeve 6 is provided with an assembling hole relative to the handle 7; the handle 7 is rotatably connected in the assembling hole; the other end of the handle 7 is located outside the sleeve.

In other embodiments, the telescopic rod (the limiting ring) can be compressed in other manners, such as a compression spring, and when the compression spring is used, the handle needs to be rotated and then positioned.

Furthermore, the telescopic mechanisms correspond to the limiting rings one to one.

Further, the radius of the inner shell 4 is equal to the radius of the corrugated pipe body 1; the clamping mechanism comprises internal threads 2.1 arranged on the inner wall of the outer shell 2; and also comprises an external thread 4.1 arranged on the outer wall of the inner shell 4.

Furthermore, the external thread 4.1 is matched with the internal thread 2.1; the internal thread 2.1 is positioned at the middle rear part of the inner wall of the outer shell 2; the external threads are distributed on the outer wall of the inner shell; the inner shell is connected with the pipeline assembly through external threads.

Specifically, in this embodiment, after the above operations are completed, the inner shell 4 is screwed in along the port of the outer shell, and after the inner shell moves to the port of the bellows body 1, the inner shell abuts against the bellows body 1 through the stress between the threads, so as to prevent gas-liquid leakage and backflow.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (8)

1. The utility model provides a stainless steel bellows connecting device, includes shell body (2) of being connected with bellows body (1), its characterized in that: a limiting ring (3) is arranged in the outer shell (2); the limiting rings (3) are provided with at least two limiting rings; the limiting ring (3) is semicircular; the two limiting rings (3) are arranged at symmetrical positions on the inner wall of the outer shell (2) and encircle the wave troughs of the corrugated pipe body (1); the limiting ring (3) is connected with the telescopic mechanism; further comprising an inner housing (4); the outer shell (2) is sleeved outside the inner shell (4); the inlet end of the inner shell (4) is tightly contacted with the end part of the corrugated pipe body (1); and a clamping mechanism is arranged between the outer shell (2) and the inner shell (4).

2. A corrugated stainless steel tubing connection as claimed in claim 1, wherein: the inner wall of the outer shell (2) is provided with a limiting groove (4.1) for accommodating a limiting ring; the diameters of the two limiting rings (3) are smaller than or equal to the diameter of the corrugated pipe body (1).

3. A corrugated stainless steel tubing connection as claimed in claim 1, wherein: the telescopic mechanism comprises a telescopic rod (5) connected with the limiting ring; also comprises a sleeve (6) arranged outside the outer shell (2) and a handle (7).

4. A corrugated stainless steel tubing connection as claimed in claim 3 wherein: the sleeve (6) is fixedly connected to the outer shell (2); one side of the sleeve (6) facing the outer shell (2) is provided with a middle hole; the telescopic rod is hinged with the end part of the handle; the upper part of the telescopic rod is provided with threads and is connected with a bolt.

5. A corrugated stainless steel tubing connection as claimed in claim 3 wherein: one end of the handle (7) is arranged in the middle of the telescopic rod (5); the outer side of the sleeve (6) is provided with an assembling hole relative to the handle (7); the handle (7) is rotatably connected in the assembly hole; the other end of the handle (7) is positioned outside the sleeve.

6. A corrugated stainless steel tubing connection as claimed in claim 1, wherein: the telescopic mechanisms correspond to the limiting rings one to one.

7. A corrugated stainless steel tubing connection as claimed in claim 1, wherein: the radius of the inner shell (4) is equal to that of the corrugated pipe body (1); the clamping mechanism comprises internal threads (2.1) arranged on the inner wall of the outer shell (2); and the outer thread (4.1) is arranged on the outer wall of the inner shell (4).

8. A corrugated stainless steel tubing connection as claimed in claim 7, wherein: the external thread (4.1) is matched with the internal thread (2.1); the internal thread (2.1) is positioned at the middle rear part of the inner wall of the outer shell (2); the external threads are distributed on the outer wall of the inner shell; the inner shell is connected with the pipeline assembly through external threads.

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