Novel reducing sleeve

Abstract

The utility model discloses a novel reducing sleeve which comprises a pipe body (1), two ports (4) with different diameters, an electric melting pipe fitting melting area (2) and a transition area (3) with one side perpendicular to the other side inclined. Wherein the electric melting pipe fitting melting zones (2) are respectively positioned on two sides of the reducing sleeve and close to the pipe body of the port (4), and the transition zone (3) is positioned on the pipe body between the electric melting pipe fitting melting zones (2) on two sides. The utility model has the advantages of shock resistance, material conservation and convenience in use.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, and more specifically to a novel reducing sleeve. Background Art

[0002] At present, reducers are widely used in the field of pipeline connection. For two pipes of different diameters, reducers are usually used to connect them to form a pipeline system. Generally speaking, some reducers will be added with electric fusion modules. After the pipeline is connected, a constant voltage or current is passed through the heating wire of the electric fusion module to partially melt the reducer, so that the reducer and the pipe are connected as one, thereby ensuring the sealing of the entire pipeline system.

[0003] Although the existing electric fusion reducers have been widely used, there are still many deficiencies in actual production applications. The existing electric fusion reducers have the defects of large material usage, slow liquid flow speed, large impact force of liquid on the transition zone, severe wear of the transition zone, and short service life. At the same time, in the actual installation process, there are also defects such as small-sized pipes hanging in the air causing pipe damage, large amount of connection accessories used, and low construction efficiency.

[0004] For example, Chinese patent number CN101352922A, published on January 28, 2009, discloses an electric fusion reducer. The electric fusion technology is used to achieve good sealing between the electric fusion reducer and the pipe. However, in actual production, there are defects such as large amount of material used, slow liquid flow, large impact force of liquid on the transition zone, severe wear of the transition zone, short life and complex actual construction. Utility Model Content

[0005] The utility model provides a novel reducing sleeve to overcome the defects of the prior art electric fusion reducing sleeve, such as large material usage, slow liquid flow rate, large impact force of the liquid on the transition zone and complex actual use.

[0006] The primary purpose of the utility model is to solve the above technical problems. The technical solution of the utility model is as follows:

[0007] A novel reducing sleeve comprises a pipe body, two ports with different diameters, an electric fusion pipe fitting melting zone, and a transition zone with one side vertical and the other side inclined.

[0008] Furthermore, the fusion zones of the electric fusion pipe fittings are respectively located at the pipe body near the ports on both sides of the reducing sleeve, and the transition zone is located at the pipe body between the fusion zones of the electric fusion pipe fittings on both sides.

[0009] Furthermore, the angle between the plane where the inclined side of the transition zone is located and the port cross section is 45 degrees, and the angle between the plane where the vertical side of the transition zone is located and the port cross section is 90 degrees.

[0010] Furthermore, a heating wire is arranged in the fusion zone of the electric fusion pipe, and the heating wire is arranged in a spiral shape.

[0011] Furthermore, the heating wire is coated with a layer of the same material as the reducing sleeve body.

[0012] Furthermore, the heating wire is an enameled copper-zinc alloy wire.

[0013] Furthermore, each of the ports is provided with a terminal, and the terminal is connected to a heating wire.

[0014] Furthermore, each of the binding posts is perpendicular to the side surface of the tube body at the port.

[0015] Furthermore, an inner wall of each port of the reducer sleeve is provided with a bevel chamfer.

[0016] Furthermore, the reducing sleeve is made of PE100.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model reduces the material usage of the reducer by reducing the length of the inclined side of the transition zone. The smooth transition of the vertical side of the transition zone is utilized to accelerate the flow rate of the liquid and reduce the impact force of the liquid on the transition zone. On the other hand, the characteristics of the vertical side of the transition zone are utilized to make one side of the two ports of the reducer be on the same horizontal plane, thereby effectively reducing the amount of elbows, reducing the situation of suspended bending of the pipeline, and reducing the complexity of actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0020] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0021] In order to better illustrate the present embodiment, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0022] It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Example 1

[0025] like Figure 1As shown, a novel reducing sleeve comprises a pipe body 1, two ports 4 of different diameters, an electric fusion pipe fitting melting zone 2, and a transition zone 3 with one side vertical and the other side inclined. The electric fusion pipe fitting melting zone 2 is respectively located at the pipe body near the ports 4 on both sides of the reducing sleeve, and the transition zone 3 is located at the pipe body between the electric fusion pipe fitting melting zones 2 on both sides.

[0026] It should be noted that the utility model reduces the material usage of the reducer by reducing the length of the inclined side of the transition zone. The smooth transition of the vertical side of the transition zone is utilized to accelerate the flow rate of the liquid and reduce the impact of the liquid on the transition zone. On the other hand, the characteristics of the vertical side of the transition zone are utilized to make one side of the two ports of the reducer be on the same horizontal plane, thereby effectively reducing the amount of elbows, reducing the situation of suspended bending of the pipeline, and reducing the complexity of actual use.

[0027] Preferably, the angle between the plane where the inclined side of the transition zone 3 is located and the cross-section of the port 4 is 45 degrees, and the angle between the plane where the vertical side of the transition zone 3 is located and the cross-section of the port 4 is 90 degrees.

[0028] In a specific embodiment, by setting the included angle between the plane where the inclined side of the transition zone 3 is located and the cross-section of the port 4 to 45 degrees, the amount of material used in the production of the reducer sleeve can be reduced, and the amount of process changes in the production of the reducer sleeve can be reduced. In addition, the included angle between the plane where the inclined side of the transition zone 3 is located and the cross-section of the port 4 can be set to other angles, such as 75 degrees, as needed.

[0029] Preferably, the fusion zone 2 of the electric fusion pipe is provided with a heating wire 5. The heating wire 5 is arranged in a spiral shape and is coated with a layer of the same material as the reducing sleeve body 1. The heating wire 5 is an enameled copper-zinc alloy wire.

[0030] In a specific embodiment, by using the method of pre-wiring to embed the heating wire 5 into the interior of the pipe body, the molten zone 2 of the electric fusion pipe fitting and the pipe can be better heated, thereby achieving the fusion of the port 4 of the pipe fitting with the pipe. In addition, the method of post-wiring can also be used to achieve the above effect as needed. On the other hand, the heating wire 5 of the enameled copper-zinc alloy arranged in a spiral shape can also support the molten zone 2 of the electric fusion pipe fitting, effectively reducing the size shrinkage and out-of-roundness of the molten zone 2 of the electric fusion pipe fitting.

[0031] Preferably, each of the ports 4 is provided with a terminal 6, and the terminal 6 is connected to the heating wire 5. Each of the terminal 6 is perpendicular to the side surface of the tube body at the port 4.

[0032] In a specific embodiment, by providing a terminal 6, current or voltage can be more easily passed into the heating wire, thereby improving the use efficiency. The terminal 6 perpendicular to the side of the tube body is more convenient for daily wiring. The terminal 6 can be changed to other angles as needed, such as 60 degrees.

[0033] Preferably, the inner wall of each port 4 of the reducer sleeve is provided with a chamfered corner.

[0034] In a specific embodiment, by providing a bevel chamfer, the pipe can be more conveniently inserted into the port, thereby increasing convenience in actual use.

[0035] Preferably, the inner and outer walls of the reducer sleeve are made of PE100 material.

[0036] In a specific embodiment, the inner and outer walls of the reducing sleeve are made of PE100, which can take into account both material cost and melting characteristics. The inner and outer walls of the reducing sleeve can also be made of other materials as needed.

[0037] The same or similar reference numerals correspond to the same or similar components;

[0038] The terms used in the drawings to describe positional relationships are only used for illustrative purposes and should not be construed as limiting this patent;

[0039] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A novel reducing sleeve, comprising a tube body (1) and two ports (4) of different diameters, characterized in that: It comprises an electric fusion pipe fitting melting zone (2) and a transition zone (3) with one side vertical and the other side inclined; The electrofusion pipe fitting fusion zones (2) are respectively located at the pipe body near the port (4) on both sides of the reducer, and the transition zone (3) is located at the pipe body between the electrofusion pipe fitting fusion zones (2) on both sides.

2. A novel reducing sleeve according to claim 1, characterized in that: The angle between the plane where the inclined side of the transition zone (3) is located and the cross section of the port (4) is 45 degrees.

3. A novel reducing sleeve according to claim 1, characterized in that: The angle between the plane on which the vertical side of the transition zone (3) is located and the cross section of the port (4) is 90 degrees.

4. A novel reducing sleeve according to claim 1, characterized in that: The fusion zone (2) of the electric fusion pipe is provided with a heating wire (5).

5. A novel reducing sleeve according to claim 4, characterized in that: The heating wire (5) is arranged in a spiral shape.

6. A novel reducing sleeve according to claim 5, characterized in that: The heating wire (5) is coated with a layer of the same material as the reducing sleeve body (1).

7. A novel reducing sleeve according to claim 6, characterized in that: The heating wire (5) is an enameled copper-zinc alloy wire.

8. A novel reducing sleeve according to claim 4, characterized in that: Each of the ports (4) is provided with a terminal (6), and the terminal (6) is connected to the heating wire (5).

9. A novel reducing sleeve according to claim 8, characterized in that: Each of the terminal posts (6) is perpendicular to the side surface of the tube body at the port (4).

10. A novel reducing sleeve according to claim 1, characterized in that: The inner wall of each port (4) of the reducer sleeve is provided with a chamfered corner.

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