Polyethylene pipe connecting structure

Abstract

The utility model provides a polyethylene pipe connecting structure which comprises a pipe body, a connecting body and a sliding hoop ring, the connecting body is cylindrical, and a sealing ring is arranged on the inner side of the connecting body. An annular buckle groove is formed in the outer side of the pipe body. A locking mechanism is arranged at the end part of the connecting body, the locking mechanism comprises a plurality of buckling bodies, the buckling bodies are arranged at the end part of the connecting body in a circular array manner, and the sliding hoop ring is sleeved on the connecting body and can slide along the axial direction of the connecting body; when the pipe body is connected with the connecting body, the pipe body is inserted into the connecting body, the buckle body is clamped into the annular buckle groove in the pipe body, and the sliding hoop slides to the outer side of the buckle body and limits the buckle body to expand towards the radial outer side of the connecting body. According to the utility model, the buckle body on the connecting body is matched with the annular buckle groove on the pipe body, so that the tensile strength of the connecting part of the connecting body and the pipe body is improved, and the pipe body is not easy to be separated from the connecting body when being subjected to larger axial tension.

Description

Technical Field

[0001] The utility model relates to the technical field of polyethylene pipes, in particular to a polyethylene pipe connection structure. Background Art

[0002] Polyethylene pipe, also known as PE pipe, is a commonly used pipe material. In the prior art, two sections of polyethylene pipe are connected by a sleeve. The inner diameter of the sleeve is matched with the outer diameter of the polyethylene pipe. The two sections of the pipe are inserted into the two ends of the sleeve respectively, and then glue is used to fix the pipe body and the sleeve. The sleeve can be a straight pipe, a 90-degree bend pipe, a 120-degree bend pipe, etc.

[0003] The existing connection method mainly realizes the connection between the pipe and the sleeve through the bonding effect of glue. As the use time increases, the glue is prone to aging and the bonding and fixing effect of the glue decreases. When the pipe body is subjected to a large axial tensile force, the pipe body is easily detached from the sleeve, resulting in poor tensile and anti-detachment capabilities of the pipe body connection. Summary of the invention

[0004] The utility model aims to solve the deficiencies in the prior art and provide a polyethylene pipe connection structure.

[0005] The purpose of the utility model is achieved through the following technical solutions: a polyethylene pipe connection structure, including a pipe body, a connector, and a sliding hoop, the connector is cylindrical, a sealing ring is provided on the inner side of the connector; an annular buckle groove is provided on the outer side of the pipe body; a locking mechanism is provided at the end of the connector, the locking mechanism includes a plurality of buckle bodies, the buckle bodies are arranged at the end of the connector in a circular array, and the sliding hoop is sleeved on the connector and can slide along the axial direction of the connector;

[0006] When the tube body is connected to the connector, the tube body is inserted into the connector, the buckle body is clipped into the annular buckle groove on the tube body, and the sliding hoop slides to the outside of the buckle body and restricts the buckle body from expanding radially outward of the connector.

[0007] When the utility model is used, two sections of the pipe body (polyethylene pipe) to be connected are respectively inserted from the two ends of the connector, and the buckle body at the end of the connector is inserted into the annular buckle groove on the outside of the pipe body, and finally the sliding hoop is slid to the outside of the buckle body. The sliding hoop is in a circular ring shape, and the inner diameter of the sliding hoop is consistent with the outer diameter of the connector. The buckle body is restricted from expanding radially outward of the connector by the sliding hoop, so that the buckle body is locked and the buckle body and the pipe body are prevented from being loosened. The utility model improves the tensile strength of the connection between the connector and the pipe body through the cooperation between the buckle body on the connector and the annular buckle groove on the pipe body, and the pipe body is not easy to be separated from the connector when subjected to a large axial tension.

[0008] Preferably, the outer side of the buckle body is provided with an L-shaped groove, which is composed of a guide groove and a locking groove arranged at one end of the guide groove. The guide groove is arranged along the axial direction of the connector, and the locking groove is connected to the guide groove; the inner side of the sliding hoop is provided with a protrusion corresponding to the L-shaped groove, and the protrusion is embedded in the L-shaped groove. The protrusion is embedded in the L-shaped groove and can slide along the L-shaped groove; when the tube body is connected to the connector, the sliding hoop slides along the guide groove on the L-shaped groove to the outer side of the buckle body, and when the protrusion slides to the locking groove position at one end of the guide groove, the sliding hoop is rotated so that the protrusion on the inner side of the sliding hoop is locked in the locking groove, so that the sliding hoop is fixed at the locking position.

[0009] Preferably, the buckle body and the connector are integrally formed.

[0010] Preferably, the locking mechanism includes six buckle bodies.

[0011] Preferably, a limiting step surface is provided on the inner side of the connector. When the tube body is connected to the connector, the end surface of the tube body contacts the limiting step surface, and the limiting step surface plays an axial limiting role on the tube body.

[0012] Preferably, a sealing ring groove is provided on the inner side of the connector, and the sealing ring is embedded in the sealing ring groove.

[0013] Preferably, the sealing ring is made of nitrile rubber.

[0014] The beneficial effect of the utility model is that the utility model improves the tensile strength of the connection between the connector and the tube body through the cooperation between the buckle body on the connector and the annular buckle groove on the tube body, and the tube body is not easy to be separated from the connector when subjected to a large axial tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 Schematic diagram of the connector structure.

[0017] Figure 3 It is a schematic diagram of the structure of the sliding hoop.

[0018] Figure 4 It is a front view of the utility model.

[0019] Figure 5 for Figure 4 Cross-sectional view along the AA direction.

[0020] Figure 6 for Figure 5 Enlarged view of part B in the middle.

[0021] Figure 7 Schematic diagram of the structure of the tube body.

[0022] In the figure: 1, tube body, 2, connecting body, 3, sliding hoop, 4, buckle body, 5, limiting step surface, 6, sealing ring, 7, guide groove, 8, locking groove, 9, protrusion, 10, annular buckle groove. DETAILED DESCRIPTION

[0023] 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 in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0024] like Figures 1 to 7 As shown, a polyethylene tube connection structure includes a tube body 1, a connector 2, and a sliding hoop 3. The connector 2 is cylindrical. The tube body 1 in the utility model is a polyethylene tube. A sealing ring 6 is provided on the inner side of the connector 2. The sealing ring 6 is arranged on the inner side of both ends of the connector 2. The inner side of the connector 2 is provided with a sealing ring groove, and the sealing ring 6 is embedded in the sealing ring groove. The sealing ring 6 is made of nitrile rubber. When the tube body 1 is inserted into the connector 2, the sealing ring 6 on the inner side of the connector 2 is in sealing contact with the outer side of the tube body 1, thereby realizing a sealed connection between the connector 2 and the tube body 1.

[0025] The inner side of the connector 2 is provided with a limiting step surface 5. When the tube body 1 is connected to the connector 2, the end surface of the tube body 1 contacts the limiting step surface 5. The limiting step surface 5 plays an axial limiting role on the tube body 1.

[0026] An annular buckle groove 10 is provided on the outer side of the tube body 1. A locking mechanism is provided at the end of the connector 2, and the locking mechanism includes a plurality of buckle bodies 4, which are arranged in a circular array at the end of the connector 2. The buckle bodies 4 are integrally formed with the connector 2. In this embodiment, the locking mechanism includes six buckle bodies 4.

[0027] The sliding hoop 3 is in the shape of a circular ring, and is sleeved on the connector 2 and can slide along the axial direction of the connector 2. When the tube 1 is connected with the connector 2, the tube 1 is inserted into the connector 2, the buckle body 4 is inserted into the annular buckle groove 10 on the tube 1, and the sliding hoop 3 slides to the outside of the buckle body 4 and restricts the buckle body 4 from expanding radially outwardly toward the connector 2.

[0028] An L-shaped groove is provided on the outer side of the buckle body 4, and the L-shaped groove is composed of a guide groove 7 and a locking groove 8 arranged at one end of the guide groove 7. The guide groove 7 is arranged along the axial direction of the connector 2, and the locking groove 8 is connected to the guide groove 7; a protrusion 9 corresponding to the L-shaped groove is provided on the inner side of the sliding hoop 3, and the protrusion 9 is embedded in the L-shaped groove. The protrusion 9 is embedded in the L-shaped groove and can slide along the L-shaped groove; when the tube body 1 is connected to the connector 2, the sliding hoop 3 slides along the guide groove 7 on the L-shaped groove to the outer side of the buckle body 4, and when the protrusion 9 slides to the position of the locking groove 8 at one end of the guide groove 7, the sliding hoop 3 is rotated so that the protrusion 9 on the inner side of the sliding hoop 3 is locked in the locking groove 8, so that the sliding hoop 3 is fixed in the locking position.

[0029] When the utility model is used, two sections of the pipe body 1 (polyethylene pipe) to be connected are respectively inserted from both ends of the connector 2, and the buckle body 4 at the end of the connector 2 is inserted into the annular buckle groove 10 on the outside of the pipe body 1, and finally the sliding hoop 3 is slid to the outside of the buckle body 4. The sliding hoop 3 is in a circular ring shape, and the inner diameter of the sliding hoop 3 is consistent with the outer diameter of the connector 2. The buckle body 4 is restricted from expanding radially outward of the connector 2 by the sliding hoop 3, so that the buckle body 4 is locked, and the buckle body 4 and the pipe body 1 are prevented from being loosened. The utility model improves the tensile strength of the connection between the connector 2 and the pipe body 1 through the cooperation between the buckle body 4 on the connector 2 and the annular buckle groove 10 on the pipe body 1, and the pipe body 1 is not easy to be separated from the connector 2 when subjected to a large axial tensile force.

[0030] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A polyethylene pipe connection structure, characterized in that: It includes a tube body, a connector, and a sliding hoop. The connector is cylindrical, and a sealing ring is provided on the inner side of the connector; an annular buckle groove is provided on the outer side of the tube body; a locking mechanism is provided at the end of the connector, and the locking mechanism includes a plurality of buckle bodies, which are arranged at the end of the connector in a circular array; the sliding hoop is sleeved on the connector and can slide along the axial direction of the connector; When the tube body is connected to the connector, the tube body is inserted into the connector, the buckle body is clipped into the annular buckle groove on the tube body, and the sliding hoop slides to the outside of the buckle body and restricts the buckle body from expanding radially outward of the connector.

2. The polyethylene pipe connection structure according to claim 1, characterized in that: An L-shaped groove is provided on the outer side of the buckle body, and the L-shaped groove consists of a guide groove and a locking groove arranged at one end of the guide groove. The guide groove is arranged along the axial direction of the connector, and the locking groove is connected to the guide groove; a protrusion corresponding to the L-shaped groove is provided on the inner side of the sliding hoop, and the protrusion is embedded in the L-shaped groove.

3. The polyethylene pipe connection structure according to claim 1, characterized in that: The buckle body and the connecting body are integrally formed.

4. The polyethylene pipe connection structure according to claim 1, characterized in that: The locking mechanism includes six buckle bodies.

5. The polyethylene pipe connection structure according to any one of claims 1 to 4, characterized in that: A limiting step surface is provided on the inner side of the connector.

6. The polyethylene pipe connection structure according to any one of claims 1 to 4, characterized in that: A sealing ring groove is provided on the inner side of the connector, and the sealing ring is embedded in the sealing ring groove.

7. The polyethylene pipe connection structure according to any one of claims 1 to 4, characterized in that: The sealing ring is made of nitrile rubber.

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