Polyethylene (PE) pipe reducer union

Abstract

The utility model discloses a polyethylene (PE) pipe reducer union which comprises a reducer union body, the pipe diameter of a cavity A and the pipe diameter of a cavity B of the reducer union body are different, the pipe diameter of the cavity B is larger than that of the cavity A. The cavity A and the cavity B of the reducer union body are respectively welded with corresponding PE pipes. An annular protrusion is arranged on the inner wall of the communicating position of the cavity A and the cavity B of the reducer union body, the inner ring of the annular protrusion is arranged to be an arc-shaped face, one side of the annular protrusion is arranged to be an annular inclined face, and the inclined face corresponds to the cavity B with the larger pipe diameter. The reducer union has the advantages that fluid passing through the reducer union body can smoothly pass through, and blocking of the fluid when the fluid passes through the reducer union body is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of PE pipe connection components, specifically a polyethylene (PE) pipe reducing joint. Background Technology

[0002] Polyethylene (PE) pipe is a thermoplastic pipe made primarily of polyethylene resin. It possesses characteristics such as corrosion resistance, flexibility, lightweight, and long service life. PE pipes of different diameters are connected using reducing couplings.

[0003] The connection between PE pipes and reducing fittings requires selecting the appropriate connection method based on the characteristics of the PE pipes and the type of reducing fittings. Heat fusion or electrofusion type PE pipe reducing fittings are suitable for reducing the diameter of PE pipes.

[0004] A typical reducing fitting welds PE pipes together. Due to the change in diameter, when liquid switches between PE pipes of different diameters, especially when flowing from a larger diameter pipe to a smaller diameter pipe, the fluid flow is obstructed at the point where the pipe diameter changes inside the reducing fitting, and the flow of liquid is somewhat hindered.

[0005] In view of this, we propose a polyethylene (PE) pipe reducing joint. Utility Model Content

[0006] The purpose of this utility model is to provide a polyethylene (PE) pipe reducing joint to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a polyethylene (PE) pipe reducing joint, comprising a reducing joint body, wherein chamber A and chamber B of the reducing joint body have different pipe diameters, with the pipe diameter of chamber B being larger than that of chamber A; chambers A and B of the reducing joint body are respectively welded with corresponding PE pipes; an annular protrusion is provided on the inner wall of the connection between chambers A and B of the reducing joint body; the inner circle of the annular protrusion is formed into an arc-shaped surface; one side of the annular protrusion is formed into an annular inclined surface, the inclined surface corresponding to the chamber B with the larger pipe diameter.

[0008] Preferably, the outer ring wall of the reducing joint body is provided with anti-slip groove A and anti-slip groove B at both ends.

[0009] Preferably, the inclined surface is tangent to the arc-shaped surface.

[0010] Preferably, the outer rings on both sides of the annular protrusion are both provided as annular end faces, and the two annular ends respectively abut against the inserted PE pipe for welding.

[0011] Preferably, the inner ring wall at the connection between chamber A and chamber B of the reducing connector body is provided with annular groove A and annular groove B, respectively.

[0012] Preferably, the cross-sections of the annular groove A and the annular groove B are trapezoidal.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting an annular protrusion, an arc-shaped surface and an inclined surface, has the advantages of allowing the fluid to pass smoothly through the reducer body and reducing the obstruction of the fluid when passing through. It solves the problem that the fluid is blocked at the point where the inner diameter of the reducer changes, and the liquid flow is obstructed to a certain extent.

[0015] 2. This utility model has the advantage of setting annular groove A and annular groove B, which allows molten material to be squeezed into annular groove A or annular groove B and cooled to form a limiting ring, thereby enhancing the stability of the weld. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the left side of the present invention.

[0018] Figure 3 This is a cross-sectional view of the right side of the present invention.

[0019] Figure 4 This is a cross-sectional front view structural schematic diagram of the present invention;

[0020] Figure 5 For the present utility model Figure 4 A magnified structural diagram at point A.

[0021] In the diagram: 100, reducing connector body;

[0022] 101. Anti-slip groove A; 102. Anti-slip groove B; 103. Annular protrusion; 104. Arc-shaped surface; 105. Inclined surface; 106. Annular groove A; 107. Annular groove B. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 3This utility model provides an embodiment of a polyethylene (PE) pipe reducing joint, comprising a reducing joint body 100. Anti-slip grooves A101 and B102 are respectively provided at both ends of the outer ring wall of the reducing joint body 100. When the operator holds the reducing joint body 100 and connects it to a hot melt machine, the anti-slip grooves A101 or B102 provide an anti-slip effect. The reducing joint body 100 has chambers A and B with different diameters, with chamber B having a larger diameter than chamber A. For pipe diameter A, chambers A and B of the reducing connector body 100 are respectively welded with corresponding PE pipes. An annular protrusion 103 is provided on the inner wall of the connection between chambers A and B of the reducing connector body 100. The inner ring of the annular protrusion 103 is formed into an arc-shaped surface 104, and one side of the annular protrusion 103 is formed into an annular inclined surface 105. The inclined surface 105 corresponds to the larger diameter chamber B. The inclined surface 105 is tangent to the arc-shaped surface 104, allowing for smoother fluid flow through the inclined surface 105 and then through the arc-shaped surface 104. Both outer rings of the annular protrusion 103 are formed into annular end faces, with each annular end abutting against the inserted and welded PE pipe. After heat fusion of chamber A of the reducing connector body 100 and the corresponding PE pipe using a heat fusion machine, the corresponding PE pipe is inserted into chamber A of the reducing connector body 100, with the end of the corresponding PE pipe contacting the annular end face on one side of the annular protrusion 103. After cooling, the inserted end of the corresponding PE pipe is fused to chamber A of the reducing connector body 100. Similarly, after heat fusion of chamber B of the reducing connector body 100 and the corresponding PE pipe using a heat fusion machine, the corresponding PE pipe is inserted into chamber B of the reducing connector body 100, with the end of the corresponding PE pipe contacting the annular end face on the other side of the annular protrusion 103. After cooling, the inserted end of the corresponding PE pipe is fused to chamber B of the reducing connector body 100. Fluid flowing from chamber B to chamber A enters chamber A along the annular inclined surface 105, passes through the arc-shaped surface 104, and flows unimpeded.

[0025] This utility model, by setting an annular protrusion 103, an arc-shaped surface 104 and an inclined surface 105, has the advantages of allowing fluid to pass smoothly through the reducer body 100 and reducing fluid obstruction during passage. It solves the problem that the fluid is obstructed at the point where the inner diameter of the reducer changes, and the liquid flow is somewhat obstructed.

[0026] Please see Figures 2 to 5This utility model provides an embodiment of a polyethylene (PE) pipe reducing joint. The inner wall of the reducing joint body 100 at the connection between chambers A and B is respectively provided with annular grooves A106 and B107. The cross-sections of annular grooves A106 and B107 are trapezoidal. When chambers A and B of the reducing joint body 100 are hot-melted with corresponding PE pipes using a hot-melt machine, the inner wall of chambers A and B of the reducing joint body 100 is pressed against the hot-melt joint of the outer wall of the corresponding PE pipe insertion end. As the PE pipe is inserted, the molten material is squeezed into annular groove A106 or annular groove B107. After cooling, a limiting ring is formed embedded in annular groove A106 or annular groove B107, enhancing the stability of the weld.

[0027] This invention, by setting annular grooves A106 and B107, has the advantage that the molten material is squeezed into annular grooves A106 or B107 and cooled to form a limiting ring, thereby enhancing the stability of the weld.

[0028] Working principle: When the reducing fitting body 100 is used for PE pipe welding, the chamber A of the reducing fitting body 100 and the corresponding PE pipe are welded together using a heat fusion machine. The corresponding PE pipe is inserted into the chamber A of the reducing fitting body 100, and the end of the corresponding PE pipe contacts the annular end face on one side of the annular protrusion 103. The chamber B of the reducing fitting body 100 and the corresponding PE pipe are welded together using a heat fusion machine. The corresponding PE pipe is inserted into the chamber B of the reducing fitting body 100, and the end of the corresponding PE pipe contacts the annular end face on the other side of the annular protrusion 103. When the chambers A and B of the reducing connector body 100 are heat-fused with the corresponding PE pipes using a heat fusion machine, the inner ring walls of chambers A and B of the reducing connector body 100 are pressed against the heat-fused joints of the outer ring walls of the corresponding PE pipe insertion ends. As the PE pipe is inserted, the molten material is squeezed into the annular groove A106 or annular groove B107. After cooling, the PE pipe insertion end is fused with chamber A or chamber B of the reducing connector body 100. The fluid flowing from chamber B to chamber A enters chamber A along the annular inclined surface 105, passes through the arc surface 104, and then enters chamber A.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A polyethylene (PE) pipe reducing joint, characterized by: The device includes a reducing connector body (100), wherein the inner wall of the cavity A and cavity B of the reducing connector body (100) is provided with an annular protrusion (103), the inner circle of the annular protrusion (103) is provided with an arc-shaped surface (104), and one side of the annular protrusion (103) is provided with an annular inclined surface (105).

2. The polyethylene (PE) pipe reducing joint according to claim 1, characterized in that: The outer ring wall of the reducing connector body (100) is provided with anti-slip groove A (101) and anti-slip groove B (102) at both ends.

3. The polyethylene (PE) pipe reducing joint according to claim 1, characterized in that: The inclined surface (105) is tangent to the arc surface (104).

4. The polyethylene (PE) pipe reducing joint of claim 1, wherein: The outer rings on both sides of the annular protrusion (103) are both set as annular end faces.

5. The polyethylene (PE) pipe reducing joint of claim 1, wherein: The inner ring wall of the cavity A and cavity B of the reducing joint body (100) is provided with annular groove A (106) and annular groove B (107), respectively.

6. The polyethylene (PE) pipe reducing joint according to claim 5, characterized in that: The cross-sections of the annular groove A (106) and the annular groove B (107) are trapezoidal.

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