Novel pipeline connecting device

Abstract

The utility model discloses a novel pipeline connecting device which comprises a first pipeline and a second pipeline, the head end of the first pipeline is connected with the tail end of the second pipeline, and the head end of the first pipeline is arranged on the outer side of the tail end of the second pipeline in a sleeved mode. The side wall of the tail end of the second pipeline is of a reducing structure, elastic gaps are symmetrically formed in the side wall of the end head of the tail end of the second pipeline, and the length direction of the elastic gaps is consistent with the axis direction of the second pipeline; the tail end of the second pipeline is arranged to be of a conical face inward-shrinkage structure, and the outer diameter of the conical face inward-shrinkage structure is gradually reduced from the head end of the second pipeline to the tail end of the second pipeline. According to the utility model, the problem that pipelines in a narrow area are not easy to be in threaded connection is solved, and the connection difficulty between the pipelines in the narrow area is reduced; the whole assembling operation is simple and fast, the connecting efficiency between the pipelines is effectively improved, and convenience is brought to pipeline installation work.

Description

Technical Field

[0001] The utility model relates to the field of pipeline installation, in particular to a novel pipeline connecting device. Background Art

[0002] At present, there are mainly the following ways to connect two pipes: the two pipes are connected by a threaded connection or the two pipes are connected by a connector, and the connection method between the end of the connector and the pipe is also a threaded connection. For example, patent No. ZL202120993168.2 discloses an anti-corrosion and anti-leakage connector for water supply and drainage pipes; however, it is not easy to rotate the pipe parts in some narrow installation areas, and the threaded connection method increases the difficulty of connecting the pipe parts and reduces the connection efficiency between the pipe parts. It is necessary to improve it. Summary of the invention

[0003] The utility model aims to solve the above problems and provide a new type of pipeline connecting device with simple structure and quick installation.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A novel pipeline connection device comprises a first pipeline and a second pipeline, wherein the head end of the first pipeline is connected to the tail end of the second pipeline and the head end of the first pipeline is sleeved on the outside of the tail end of the second pipeline; the side wall of the tail end of the second pipeline is arranged as a reducing structure, and elastic gaps are symmetrically arranged on the side wall of the tail end of the second pipeline, and the length direction of the elastic gap is consistent with the axial direction of the second pipeline; the tail end of the second pipeline is arranged as a conical shrinking structure, and the outer diameter of the conical shrinking structure gradually narrows from the head end to the tail end of the second pipeline.

[0006] Furthermore, the reducing structure includes a reducing section and a plug-in section. The reducing section is arranged in a tapered tubular shape, and the plug-in section is arranged in a straight tubular shape. The reducing section and the plug-in section are arranged coaxially with the second pipe. The end of the reducing section with a larger outer diameter is arranged close to the head end of the second pipe, and the end of the reducing section with a smaller outer diameter is connected to one end of the plug-in section. The other end of the plug-in section is arranged as a conical shrinking structure.

[0007] Furthermore, the elastic slit is arranged on the side wall of one end of the plug-in section away from the diameter-changing section, one end of the elastic slit passes through the tail end wall of the plug-in section, and the other end of the elastic slit is connected to the positioning hole arranged in the middle of the plug-in section.

[0008] Furthermore, the outer diameter of the end of the conical retracted structure is smaller than the inner diameter of the head end of the first pipe, and the outer diameter of the plug-in section is larger than the inner diameter of the head end of the first pipe; when the head end of the first pipe is sleeved on the outside of the plug-in section of the second pipe, the outer wall of the plug-in section abuts against the inner wall of the head end of the first pipe under the elastic action of the elastic gap.

[0009] Furthermore, the first pipe and the second pipe are plastic pipes or metal pipes with the same structure.

[0010] Compared with the prior art, the utility model has the following advantages and positive effects:

[0011] When the utility model is installing the pipeline, the head end of the first pipeline is gradually brought closer to the tail end of the second pipeline. When the first pipeline end touches the conical shrinking structure at the tail end of the second pipeline, the tail end wall of the second pipeline is gradually narrowed in the direction of the elastic gap under the extrusion of the inner wall of the first pipeline. After the inner wall of the second pipeline is narrowed, the first pipeline continues to be inserted and sleeved to the outside of the second pipeline until the head end of the first pipeline reaches the outside of the end with a larger outer diameter of the second pipeline shrinking structure. At this time, the outer wall of the tail end of the second pipeline will abut against the inner wall of the end of the first pipeline under the action of elasticity. The friction between the outer wall of the tail end of the second pipeline and the inner wall of the head end of the first pipeline is relied on to keep the first pipeline and the second pipeline stably connected, thereby realizing the quick connection operation of the first pipeline and the second pipeline;

[0012] The connection structure does not require any rotation of the pipe parts during installation. It only requires the head end of the first pipe to be directly plugged and sleeved on the outside of the tail end of the second pipe. It can completely connect pipes in narrow areas, solve the problem of difficult threaded connection between pipes in narrow areas, and reduce the difficulty of connecting pipes in narrow areas. The entire assembly operation is simple and fast, which effectively improves the connection efficiency between pipes and brings convenience to the pipe installation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 This is the assembly structure diagram of the utility model;

[0015] Figure 2 for Figure 1 A magnified view of the local structure;

[0016] Figure 3 This is the structural diagram of the tail end of the second pipeline. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the utility model.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment discloses a novel pipeline connection device, comprising a first pipeline 1 and a second pipeline 2, wherein the first pipeline 1 and the second pipeline 2 are plastic pipes or metal pipes with the same structure; the head end of the first pipeline 1 is connected to the tail end of the second pipeline 2, and the head end of the first pipeline 1 is sleeved on the outside of the tail end of the second pipeline 2;

[0019] The side wall of the tail end of the second pipe 2 is configured as a reduced diameter structure 21;

[0020] The reducing structure 21 includes a reducing section 211 and a plug section 212. The reducing section 211 is arranged in a tapered tubular shape, and the plug section 212 is arranged in a straight tubular shape. The reducing section 211 and the plug section 212 are arranged coaxially with the second pipe 2. The end of the reducing section 211 with a larger outer diameter is arranged close to the head end of the second pipe 2, and the end of the reducing section 211 with a smaller outer diameter is connected to one end of the plug section 212. The other end of the plug section 212 is arranged as a conical shrinking structure 214. The outer diameter of the conical shrinking structure 214 gradually narrows from the head end to the tail end of the second pipe 2, and the outer diameter of the narrowest end thereof is smaller than the inner diameter of the head end of the first pipe 1.

[0021] Elastic slits 213 are symmetrically arranged on the side wall of the tail end of the plug section 212, and the length direction of the elastic slits 213 is consistent with the axial direction of the second pipe 2; one end of the elastic slit 213 passes through the tail end wall of the plug section 212, and the other end of the elastic slit 213 is connected to a positioning hole 215 arranged in the middle of the plug section 212. The design of the positioning hole avoids the situation that the pipe is torn along the elastic slit during use, thereby improving the structural strength of the pipe.

[0022] When the plug-in section of the second pipe is not squeezed by the first pipe, the outer diameter of the plug-in section of the second pipe is larger than the inner diameter of the head end of the first pipe; when the plug-in section of the second pipe is squeezed by the first pipe, the outer diameter of the plug-in section of the second pipe is adapted to the inner diameter of the head end of the first pipe; after the head end of the first pipe is sleeved on the outside of the tail end of the second pipe, the outer wall of the plug-in section and the outer wall of the reducing section of the second pipe are both in contact with the inner wall of the head end of the first pipe, and the friction force thereof is used to achieve a stable connection between the first pipe and the second pipe.

[0023] When the utility model is installing the pipeline, the head end of the first pipeline is gradually brought closer to the tail end of the second pipeline. When the first pipeline end touches the conical shrinking structure at the tail end of the second pipeline, the tail end wall of the second pipeline is gradually narrowed in the direction of the elastic gap under the extrusion of the inner wall of the first pipeline. After the inner wall of the second pipeline is narrowed, the first pipeline continues to be inserted and sleeved to the outside of the second pipeline until the head end of the first pipeline reaches the outside of the end with a larger outer diameter of the second pipeline shrinking structure. At this time, the outer wall of the tail end of the second pipeline will abut against the inner wall of the end of the first pipeline under the action of elasticity. The friction between the outer wall of the tail end of the second pipeline and the inner wall of the head end of the first pipeline is relied on to keep the first pipeline and the second pipeline stably connected, thereby realizing the quick connection operation of the first pipeline and the second pipeline;

[0024] The connection structure does not require any rotation of the pipe parts during installation. It only requires the head end of the first pipe to be directly plugged and sleeved on the outside of the tail end of the second pipe. It can completely connect pipes in narrow areas, solve the problem of difficult threaded connection between pipes in narrow areas, and reduce the difficulty of connecting pipes in narrow areas. The entire assembly operation is simple and fast, which effectively improves the connection efficiency between pipes and brings convenience to the pipe installation work.

Claims

1. A novel pipeline connection device, comprising a first pipeline and a second pipeline, wherein the head end of the first pipeline is connected to the tail end of the second pipeline and the head end of the first pipeline is sleeved outside the tail end of the second pipeline; characterized in that: The side wall of the tail end of the second pipe is arranged as a reducing structure, and elastic gaps are symmetrically arranged on the side wall of the tail end of the second pipe, and the length direction of the elastic gaps is consistent with the axial direction of the second pipe; the tail end of the second pipe is arranged as a conical shrinking structure, and the outer diameter of the conical shrinking structure gradually narrows from the head end to the tail end of the second pipe.

2. The novel pipe connection device according to claim 1, characterized in that: The reducing structure includes a reducing section and a plug-in section. The reducing section is arranged in a tapered tubular shape, and the plug-in section is arranged in a straight tubular shape. The reducing section and the plug-in section are arranged coaxially with the second pipe. The end of the reducing section with a larger outer diameter is arranged close to the head end of the second pipe, and the end of the reducing section with a smaller outer diameter is connected to one end of the plug-in section. The other end of the plug-in section is arranged as a tapered shrinking structure.

3. The novel pipe connection device according to claim 2, characterized in that: The elastic slit is arranged on the side wall of one end of the plug-in section away from the diameter-changing section, one end of the elastic slit penetrates the tail end wall of the plug-in section, and the other end of the elastic slit is connected to the positioning hole arranged in the middle of the plug-in section.

4. The novel pipe connection device according to claim 3 is characterized in that: The outer diameter of the end of the conical shrinkage structure is smaller than the inner diameter of the head end of the first pipe, and the outer diameter of the plug-in section is larger than the inner diameter of the head end of the first pipe; when the head end of the first pipe is sleeved on the outside of the plug-in section of the second pipe, the outer wall of the plug-in section abuts against the inner wall of the head end of the first pipe under the elastic action of the elastic gap.

5. The novel pipe connection device according to claim 4 is characterized in that: The first pipe and the second pipe are plastic pipes or metal pipes with the same structure.

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