Connecting coaxial device

Abstract

The utility model discloses a connecting coaxial device, which relates to the technical field of flange pipeline connection and comprises a positioning pipe, one end of the positioning pipe is used for being coaxially connected to a flange, the other end of the positioning pipe is used for being coaxially connected to another flange, and a limiting part is arranged on the periphery of the positioning pipe and can abut against the side end of the flange. According to the connection coaxial device, connection and positioning between flanges are facilitated, and the installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange pipeline connection technical field, in particular to a kind of connection coaxial device. BACKGROUND

[0002] In the existing pipeline connecting device, pipeline interfaces are usually sealed and connected and communicated using flanges, but in the docking process of the existing flange, it is difficult to ensure that the two flanges are coaxial when docking, resulting in abnormal difficulty in connection, and usually two workers are needed to position the flanges and install the clamps, which is low in installation efficiency. SUMMARY

[0003] The utility model aims at providing a kind of connection coaxial device to solve the problems existing in the prior art, facilitate the connection positioning between flanges and improve installation efficiency.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] The utility model provides a kind of connection coaxial device, including positioning pipe, the positioning pipe one end is used for coaxial connection in a flange, the positioning pipe other end is used for coaxial connection in another flange, and the positioning pipe outer periphery is provided with limiting portion, and the limiting portion can be opposite with the side end of the flange.

[0006] Preferably, the limiting portion is set as annular protrusion, and the outer diameter of the annular protrusion is greater than the inner diameter of the flange.

[0007] Preferably, the annular protrusion is provided with two in parallel along the axial direction of the positioning pipe.

[0008] Preferably, the two annular protrusions are arranged in the middle part of the positioning pipe.

[0009] Preferably, positioning groove is arranged between the two annular protrusions, and sealing pad can be coaxially placed in the positioning groove.

[0010] Preferably, the positioning pipe is made of stainless steel material.

[0011] Preferably, the outer wall of the positioning pipe is set as smooth surface.

[0012] Preferably, the two ends of the positioning pipe are used for coaxial sleeve into the flange.

[0013] Preferably, the limiting portion is integrally formed with the positioning pipe.

[0014] Preferably, the positioning pipe is set as circular ring.

[0015] Compared with the prior art, the utility model has the following technical effects:

[0016] The connecting coaxial device is characterized in that two flanges are coaxially connected to two ends of the positioning pipe, the two flanges are coaxially arranged through the positioning pipe, and the positioning pipe is positioned and limited through the limiting part. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0018] Figure 1 The structural schematic diagram of the connecting coaxial device provided for the first embodiment.

[0019] In the figure: 1-positioning pipe; 2-limiting part; 21-annular protrusion; 3-positioning groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.

[0021] The purpose of the present application is to provide a connecting coaxial device to solve the problems in the prior art, facilitate the connection and positioning between the flanges, and improve the installation efficiency.

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail in combination with the drawings and specific embodiments.

[0023] Embodiment one

[0024] The present embodiment provides a connecting coaxial device, please refer to Figure 1 , including a positioning pipe 1, one end of the positioning pipe 1 is coaxially connected to a flange, the other end of the positioning pipe 1 is coaxially connected to another flange, and a limiting part 2 is arranged on the outer periphery of the positioning pipe 1, and the limiting part 2 can abut against the side end of the flange.

[0025] The two flanges to be connected are coaxially connected with two ends of the positioning pipe 1, the two flanges are coaxially arranged through the positioning pipe 1, facilitating butt joint positioning, the limiting part 2 arranged on the positioning pipe 1 can abut against the side end of the flange to limit, avoiding the positioning pipe 1 from falling into the inside of the flange pipe; the coaxial connector provided in the embodiment can be applied to the connection of the high-temperature-resistant flange interface special for flat plate heat collectors.

[0026] In an optional solution of the embodiment, preferably, the limiting part 2 is arranged as an annular protrusion 21, and the outer diameter of the annular protrusion 21 is greater than the inner diameter of the flange; the flange is circumferentially limited through the annular protrusion 21.

[0027] In an optional solution of the embodiment, preferably, the annular protrusions 21 are arranged in parallel along the axial direction of the positioning pipe 1 and are two in number, and the two annular protrusions 21 limit the two flanges separately.

[0028] In an optional solution of the embodiment, preferably, the two annular protrusions 21 are arranged at the middle part of the positioning pipe 1, so that the positioning pipe 1 is symmetrically distributed as a whole, which is aesthetically pleasing and has uniform weight distribution.

[0029] In an optional solution of the embodiment, preferably, a positioning groove 3 is arranged between the two annular protrusions 21, and a sealing gasket can be coaxially placed in the positioning groove 3; the sealing gasket is arranged between the two annular protrusions 21, facilitating the sealing of the clamp connection after the flanges are butt jointed; and the sealing gasket is positioned, reducing the damage to the sealing gasket in the tightening process due to eccentricity of the sealing gasket in the assembly process, so that the sealing gasket cannot effectively play a sealing role, causing cost loss.

[0030] Specifically, if the sealing gasket is made of metal material, the outer diameter of the annular protrusion 21 is slightly smaller than the inner diameter of the sealing gasket, facilitating assembly of the sealing gasket; if the sealing gasket is made of rubber material, the outer diameter of the annular protrusion 21 is slightly greater than the inner diameter of the sealing gasket, and the sealing gasket is assembled by using the elasticity of the sealing gasket, and the annular protrusion 21 can play a limiting role.

[0031] In an optional solution of the embodiment, preferably, the positioning pipe 1 is made of stainless steel material, ensuring the service life, and specifically, the wall thickness can be determined according to requirements, such as 1 mm.

[0032] In an optional solution of the embodiment, preferably, the two ends of the positioning pipe 1 are used to be coaxially sleeved into the flange, and the plug-in connection facilitates assembly.

[0033] In an optional solution of the embodiment, preferably, the outer wall of the positioning pipe 1 is arranged as a smooth surface, reducing assembly friction, facilitating plug-in assembly.

[0034] In an optional solution of the embodiment, preferably, the limiting part 2 is integrally formed with the positioning pipe 1, ensuring the overall use strength, and specifically, the limiting part 2 can be formed by stamping.

[0035] In an optional solution of the embodiment, the positioning pipe 1 is preferably arranged in a circular ring shape, facilitating the plug-in cooperation with the flange.

[0036] The principle and implementation mode of the utility model are described by applying specific examples in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A coaxial connector, characterized in that: The positioning tube (1) is coaxially connected to one flange at one end, coaxially connected to another flange at the other end, and provided with a limiting part (2) on the outer periphery, which can abut against the side end of the flange.

2. The coaxial connector of claim 1, wherein: The limiting part (2) is provided as an annular protrusion (21) with an outer diameter greater than the inner diameter of the flange.

3. The coaxial connector of claim 2, wherein: The annular protrusions (21) are arranged side by side axially along the positioning tube (1).

4. The coaxial connector of claim 3, wherein: The two annular protrusions (21) are arranged at the middle part of the positioning tube (1).

5. The coaxial connector of claim 3, wherein: A positioning groove (3) is arranged between the two annular protrusions (21), in which a sealing gasket can be coaxially placed.

6. The coaxial connector of claim 1, wherein: The positioning tube (1) is made of stainless steel.

7. The coaxial connector of claim 1, wherein: The outer wall of the positioning tube (1) is provided as a smooth surface.

8. The coaxial connector of claim 1, wherein: The two ends of the positioning tube (1) are coaxially sleeved into the flange.

9. The coaxial connector of claim 1, wherein: The limiting part (2) is integrally formed with the positioning tube (1).

10. The coaxial connector of claim 1, wherein: The positioning tube (1) is provided as a circular ring.

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