Reducing loose joint elbow pipe fitting

Abstract

The utility model discloses a reducing loose joint elbow pipe fitting which comprises a pipe fitting body, the pipe fitting body is divided into a first body section, a second body section and a third body section, and every two of the first body section, the second body section and the third body section are perpendicular to each other. The first body section is connected with the second body section through the first arc section, and the second body section is connected with the third body section through the second arc section. The first body section is divided into a small-caliber section, a transition section and a large-caliber section, the small-caliber section is connected with the first arc section, and the large-caliber section is connected with the first movable joint; and the third body section is connected with a second movable joint. The three main body sections are connected through the two 90-degree arc sections, so that two pipelines which are perpendicular to each other on different planes can be connected, the original process that two 90-degree elbows need to be installed is simplified, the distance between the first movable joint and the second movable joint can be controlled to be small, and the pipeline connector is suitable for pipeline installation in a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe connectors, in particular to a reducing-diameter flexible elbow pipe fitting. Background Art

[0002] Pipe fittings are widely used in the connection of gas and liquid transmission pipelines. Commonly used pipe fittings include two-way fittings, three-way fittings, four-way fittings, 90° elbows, 45° elbows, etc. The 90° elbow pipe fitting can connect two perpendicular pipelines and has become one of the commonly used pipe fittings. Pipe fittings are widely used due to their simple production and low cost. However, the 90° elbow only connects vertical pipelines in the same plane. If there are two pipelines that are staggered from each other, they need to be connected together through two 90° elbows. At the same time, sometimes the calibers between the equipment interfaces are different, and when connecting the pipelines, a reducer is also required.

[0003] For example, the first pipe and the second pipe of different diameters not only have a distance difference in height, but also in front and back positions, and the first pipe and the second pipe are in a vertical state. According to the prior art, it is necessary to first connect a different-diameter straight-through interface to the first pipe, then connect two 90-degree bends, and finally connect to the second pipe. There are at least 4 connection points on this section of waterway. The more connection points, the more leakage points. In addition, there are pipe joints on the pipe connectors. No matter what structure the pipe joints are, the size of the pipe connectors will be increased. In other words, this pipe connector splicing method has requirements on the spacing between the two pipelines. If the spacing is too small, it cannot be installed. This makes the pipeline installation space more tight and the installation is very difficult. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a reducing joint elbow pipe fitting, which can reduce the installation difficulty of reducing port connection and multiple turning connection.

[0005] To this end, the technical solution of the utility model is: a reducing-diameter flexible elbow pipe fitting, including a pipe fitting body, the pipe fitting body is divided into a first body section, a second body section and a third body section, and the three are perpendicular to each other; the first body section is connected to the second body section through a first arc section, and the second body section is connected to the third body section through a second arc section; the first body section is divided into a small-diameter section, a transition section and a large-diameter section, the small-diameter section is connected to the first arc section, and the large-diameter end is connected to the first flexible joint; the third body section is connected to the second flexible joint.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the inner diameters of the small-diameter section, the first arc section, the second body section, the second arc section, and the third body section are consistent and smaller than the inner diameter of the large-diameter section.

[0007] On the basis of the above solution and as a preferred solution of the above solution: the diameter of the first flexible joint is larger than that of the second flexible joint.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the first arc segment and the second arc segment are both 90-degree arcs.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the transition section is an inclined section structure, one end of which is connected to the small-diameter section, and the other end is connected to the large-diameter section.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the pipe body is formed by integral processing, or is formed by separate processing and then welding and fixing.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The three main sections are connected by two 90-degree arc sections. The first main section and the third main section are on different planes, and the first main section and the third main section are perpendicular to each other, so that two perpendicular pipelines on different planes can be connected, simplifying the original process of installing two 90-degree elbows, and the distance between the first flexible joint and the second flexible joint can be controlled to be relatively small, which is suitable for pipeline installation in a narrow space.

[0013] 2. A large-diameter section and a small-diameter section with different calibers are arranged on the first body section, so that the caliber of the first flexible joint on the first body section can be larger than the caliber of the second flexible joint, so that two pipelines with different calibers can be connected by a single component, which is more convenient to install, has fewer leakage points, and has a longer service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural side view of the utility model;

[0016] Figure 3 It is a top view of the structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the use of the utility model.

[0018] Marked in the figure are: first body section 1, small diameter section 11, transition section 12, large diameter section 13, second body section 2, third body section 3, first arc section 4, second arc section 5, first flexible joint 6, second flexible joint 7, first pipe 8, second pipe 9. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the preferred implementation scheme of the present utility model is described below in conjunction with specific embodiments.

[0020] See the attached drawings. The reducing flexible elbow pipe fitting described in this embodiment includes a pipe fitting body, which is divided into a first body section 1, a second body section 2 and a third body section 3, which are perpendicular to each other; the first body section 1 is connected to the second body section 2 through a first arc section 4, and the second body section 2 is connected to the third body section 3 through a second arc section 5, the first arc section 4 and the second arc section 5 are both 90-degree arcs, and the length of the second body section 2 can be zero, that is, the first arc section 4 and the second arc section 5 are directly connected, thereby reducing the size of the pipe fitting.

[0021] The first body section 1 is divided into a small-diameter section 11, a transition section 12 and a large-diameter section 13. The transition section 12 is an inclined section structure, one end of which is connected to the small-diameter section 11, and the other end is connected to the large-diameter section 13. The small-diameter section 11 is connected to the first arc section 4. The inner diameters of the small-diameter section 11, the first arc section 4, the second body section 2, the second arc section 5, and the third body section 3 are all the same, and are all smaller than the inner diameter of the large-diameter section 13. The large-diameter end 13 is connected to the first flexible joint 6, and the third body section 3 is connected to the second flexible joint 7. The diameter of the first flexible joint 6 is larger than that of the second flexible joint 7.

[0022] The pipe body is formed by integral processing, or each section is processed separately and then welded and fixed. When welding, spot welding is first performed, then full welding, and finally polishing is performed to make it smooth.

[0023] When in use, the first pipe 8 and the second pipe 9 of different calibers not only have a distance difference in height, but also in front and back positions, and the first pipe and the second pipe are still in a vertical state; the first pipe 8 is directly connected to the first flexible joint 6, and the first flexible joint 6 reduces the caliber through the first main body section 1, the first arc section 4 and the second main body section 2 can make up for the height difference between the first pipe 8 and the second pipe 9, and the second arc section 5 and the third main body section 3 can make up for the front and back distance difference between the first pipe 8 and the second pipe 9, so that the second flexible joint 7 can be directly connected to the second pipe 9. There are only two connection points in the whole connection process, which reduces the risk of water leakage and is more convenient.

[0024] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0025] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A reducing joint elbow pipe fitting, comprising a pipe fitting body, characterized in that: The pipe body is divided into a first body section, a second body section and a third body section, and the three are perpendicular to each other; the first body section is connected to the second body section through a first arc section, and the second body section is connected to the third body section through a second arc section; the first body section is divided into a small-diameter section, a transition section and a large-diameter section, the small-diameter section is connected to the first arc section, and the large-diameter end is connected to the first flexible joint; the third body section is connected to the second flexible joint.

2. A reducing joint elbow pipe fitting according to claim 1, characterized in that: The inner diameters of the small-diameter section, the first arc section, the second body section, the second arc section, and the third body section are all the same, and are all smaller than the inner diameter of the large-diameter section.

3. A reducing joint elbow pipe fitting according to claim 2, characterized in that: The first flexible joint has a larger caliber than the second flexible joint.

4. A reducing joint elbow pipe fitting according to claim 1, characterized in that: The first arc segment and the second arc segment are both 90-degree arcs.

5. A reducing joint elbow pipe fitting according to claim 1, characterized in that: The transition section is an inclined section structure, one end of which is connected to the small-diameter section, and the other end of which is connected to the large-diameter section.

6. A reducing joint elbow pipe fitting according to claim 1, characterized in that: The pipe body is formed by integral processing or by welding and fixing after being processed in parts.

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