Copper-aluminum composite pipeline connecting structure

Abstract

The utility model discloses a copper-aluminum composite pipeline connecting structure which comprises a main body section, the two sides of the main body section are each fixedly connected with a connecting assembly, the connecting assemblies are in external threaded connection with a pipeline, the connecting assemblies are sleeved with belleville spring washers, the connecting assemblies are in external threaded connection with hexagon nuts, and the hexagon nuts are sleeved with belleville spring washers. The belleville spring washer is located between the pipeline and the hexagon nut, and the hexagon nut is tightened to extrude the belleville spring washer to abut against the pipeline. According to the utility model, the belleville spring washer is extruded by the hexagonal nut to abut against the pipeline, and under the action of the elastic force of the belleville spring washer, the threaded connection of the pipeline and the threaded connection of the hexagonal nut are extruded, so that the threaded connection has a certain degree of self-locking performance, and the sealing performance between the pipeline and a connecting assembly is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal pipeline connecting piece technical field, concretely relates to a copper aluminium composite pipeline connecting structure. BACKGROUND

[0002] The copper aluminium composite pipe combines the advantages of copper pipe and aluminium pipe, has the characteristics of corrosion resistance, good heat conduction performance, light weight and low cost, and is widely used in building heating ventilation air conditioning systems.

[0003] In the heating pipe, as the pipeline of the heating system, the heat of hot water can be quickly transmitted to the indoor to make the indoor temperature uniformly rise. Moreover, the corrosion resistance of the copper aluminium composite pipe can withstand various chemical substances in the heating water, thereby prolonging the service life of the pipeline.

[0004] However, when connecting two sections of pipelines, straight-through joints, elbows and other connecting pieces are used to connect the two sections of pipelines, so that a complete and leakproof pipeline is formed. However, in the prior art, the connecting mode between the pipeline and the connecting joint adopts threaded connection, and waterproof adhesive tape is wound at the threaded position to enhance the leakproofness. However, the threaded connection mode has the problem that the threads are loosened due to the influence of the external environment, such as vibration and impact, during long-term use, thereby causing the pipeline to leak and causing economic losses. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a copper aluminium composite pipeline connecting structure to solve the above problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a copper aluminium composite pipeline connecting structure, comprising: a main body section, one connecting assembly is fixedly connected to each side of the main body section, a pipeline is externally threadedly connected to the connecting assembly, a butterfly spring washer is provided on the connecting assembly, a hexagon nut is externally threadedly connected to the connecting assembly, the butterfly spring washer is located between the pipeline and the hexagon nut, and the hexagon nut is pressed against the pipeline by tightening the hexagon nut to realize the pressing of the butterfly spring washer.

[0007] Further, the connecting assembly comprises a locking section, the locking section is fixedly connected to the main body section, a first external thread and a second external thread are provided on the locking section, the butterfly spring washer is located between the first external thread and the second external thread, and the hexagon nut is threadedly connected outside the second external thread.

[0008] Further, a connecting section is fixedly connected to the other end of the locking section, the pipeline is threadedly connected to the connecting section, a locking sleeve is externally threadedly connected to the first external thread, and a second conical sealing ring is embedded in the locking sleeve.

[0009] Further, a limiting groove is formed in the inside of the side of the locking sleeve close to the main body section.

[0010] Further, the connecting section is sleeved with a first conical sealing ring near one end of the locking section.

[0011] Further, the main body section is an elbow pipe or a straight pipe.

[0012] In the above technical solution, the copper-aluminum composite pipe connecting structure provided by the utility model has the beneficial effects that:

[0013] The utility model discloses a hexagon nut is extruded butterfly spring washer and is supported on the pipeline, and under the elastic force of the butterfly spring washer, the extrusion force acts on the threaded connection of the pipeline and the threaded connection of the hexagon nut, so that the threaded connection has a certain degree of self-locking, and the sealing between the pipeline and the connecting assembly is enhanced.

[0014] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, rather than intended to limit the present disclosure.

[0015] The present application provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0016] 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 below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0017] Fig. 1 The first perspective view structure schematic diagram provided by the utility model embodiment is shown in the figure.

[0018] Fig. 2 The second perspective view structure schematic diagram provided by the utility model embodiment is shown in the figure.

[0019] Fig. 3 The utility model embodiment provides a sectional view.

[0020] Explanation of reference signs:

[0021] 1, main body section; 2, locking section; 21, first external thread; 22, second external thread; 3, connecting section; 31, first conical sealing ring; 32, third external thread; 4, locking sleeve; 41, limiting groove; 42, second conical sealing ring; 43, internal thread; 5, butterfly spring washer; 6, hexagon nut. DETAILED DESCRIPTION

[0022] To make the purposes, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present disclosure.

[0023] Please refer to Figs. 1-3 The utility model discloses a copper aluminium composite pipeline connecting structure, include: main body section 1, both sides of main body section 1 are fixedly connected with a connecting component, and the connecting component is externally threadedly connected with a pipeline, and the connecting component is externally provided with a butterfly spring washer 5, and the connecting component is externally threadedly connected with a hexagon nut 6, and the butterfly spring washer 5 is located between the pipeline and the hexagon nut 6, and the hexagon nut 6 is realized by tightening the hexagon nut 6 and is extruded the butterfly spring washer 5 and is pressed on the pipeline.

[0024] The utility model discloses a copper aluminium composite pipeline connecting structure, include: main body section 1, both sides of main body section 1 are fixedly connected with a connecting component, and the connecting component is externally threadedly connected with a pipeline, and the connecting component is externally provided with a butterfly spring washer 5, and the connecting component is externally threadedly connected with a hexagon nut 6, and the butterfly spring washer 5 is located between the pipeline and the hexagon nut 6, and the hexagon nut 6 is realized by tightening the hexagon nut 6 and is extruded the butterfly spring washer 5 and is pressed on the pipeline.

[0025] Further, the connecting component includes a locking section 2, the locking section 2 is fixedly connected on the main body section 1, the locking section 2 is externally provided with a first external thread 21 and a second external thread 22, the butterfly spring washer 5 is located between the first external thread 21 and the second external thread 22, the hexagon nut 6 is threadedly connected outside the second external thread 22, the other end of the locking section 2 is fixedly connected with a connecting section 3, the pipeline is threadedly connected with the connecting section 3, the outer side of the connecting section 3 is provided with a third external thread 32, the first external thread 21 is externally threadedly connected with a locking sleeve 4, an internal thread 43 is formed in the locking sleeve 4, the first external thread 21 is threadedly connected with the internal thread 43, a second conical sealing ring 42 is embedded in the locking sleeve 4, a limiting groove 41 is formed in the inside of the locking sleeve 4 close to the main body section 1, the limiting groove 41, the internal thread 43 and the second conical sealing ring 42 are sequentially arranged, and the limiting groove 41 is closest to the main body section 1, and a first conical sealing ring 31 is sleeved on the outer side of the connecting section 3 close to the locking section 2.

[0026] When the connecting structure is not connected with the pipeline, the hexagon nut 6 is threadedly connected on the second external thread 22 first, then the butterfly spring washer 5 is sleeved on the outside of the locking section 2, and then the internal thread 43 is threadedly connected on the first external thread 21, and the first conical sealing ring 31 is sleeved in the groove formed on the connecting section 3.

[0027] The pipe is screwed to the connecting section 3 outside, and as the connecting section 3 approaches the locking section 2, the connecting section 3 gradually extrudes the first conical sealing ring 31, and the deformation of the first conical sealing ring 31 seals the gap between the pipe and the first conical sealing ring 31, then the locking sleeve 4 is screwed to move the locking sleeve 4 to the pipe, so that the second conical sealing ring 42 extrudes the upper side of the pipe, and the second conical sealing ring 42 deforms to form a seal between the pipe and the locking sleeve 4, thereby enhancing the sealing performance of the pipe connection position, then the hexagonal nut 6 is screwed to move the hexagonal nut 6 to the pipe, so that the butterfly spring washer 5 is extruded against the locking sleeve 4, and the butterfly spring washer 5 deforms, and the elastic force generated by the butterfly spring washer 5 extrudes the locking sleeve 4 and the hexagonal nut 6, so that the locking sleeve 4 and the hexagonal nut 6 have a certain self-locking performance, so that the locking sleeve 4 is not easy to loosen, and the second conical sealing ring 42 is ensured to abut against the connecting section 3, thereby enhancing the sealing performance, and the pipe and the connecting section 3 are not easy to rotate relative to each other.

[0028] Further, the main body section 1 is a bent pipe or a straight pipe, so that the connecting structure can be applied to more connection positions.

[0029] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways, therefore, the above drawings and description are illustrative in nature, and should not be understood as the limitation of the utility model claim protection scope.

Claims

1. A copper-aluminum composite pipe connection structure, comprising: The utility model provides a pipe connecting device, which comprises a main body section (1), a connecting section (3) and a pipe, wherein the main body section (1) is provided with a connecting assembly on both sides, the connecting assembly is externally threadedly connected with the pipe, the connecting assembly is externally provided with a butterfly spring washer (5), the connecting assembly is externally threadedly connected with a hexagon nut (6), the butterfly spring washer (5) is located between the pipe and the hexagon nut (6), and the hexagon nut (6) is screwed to extrude the butterfly spring washer (5) to be pressed on the pipe.

2. The copper-aluminum composite pipe connecting structure according to claim 1, wherein The connecting assembly comprises a locking section (2), the locking section (2) is fixedly connected to the main body section (1), the locking section (2) is externally provided with a first external thread (21) and a second external thread (22), the butterfly spring washer (5) is located between the first external thread (21) and the second external thread (22), and the hexagon nut (6) is threadedly connected to the second external thread (22).

3. The copper-aluminum composite pipe connecting structure according to claim 2, characterized in that, The other end of the locking section (2) is fixedly connected with the connecting section (3), the pipe is threadedly connected with the connecting section (3), the first external thread (21) is externally threadedly connected with a locking sleeve (4), and the locking sleeve (4) is internally embedded with a second conical sealing ring (42).

4. The copper-aluminum composite pipe connecting structure according to claim 3, characterized by The locking sleeve (4) is internally provided with a limiting groove (41) close to the main body section (1).

5. The copper-aluminum composite pipe connecting structure according to claim 4, wherein The connecting section (3) is externally sleeved with a first conical sealing ring (31) close to the locking section (2).

6. The copper-aluminum composite pipe connection structure according to any one of claims 1 to 5, characterized by The main body section (1) is a bent pipe or a straight pipe.

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