Angle-adjustable elbow pipe fitting

Abstract

The utility model discloses an angle-adjustable elbow pipe fitting which comprises a first pipe connecting piece, a flexible connecting piece and a second pipe connecting piece, one end of the first pipe connecting piece and one end of the second pipe connecting piece are provided with first clamping portions, and the other end of the first pipe connecting piece and the other end of the second pipe connecting piece are pipe connectors. The flexible connecting piece comprises a corrugated pipe in the middle and second clamping parts at the two ends, and the second clamping parts are connected with the first clamping parts of the first pipe connecting piece and the second pipe connecting piece in a clamped mode respectively. The elbow is divided into three parts, the first pipe connecting piece and the second pipe connecting piece are connected through the flexible connecting piece, the orientation of pipe connectors of the first pipe connecting piece and the second pipe connecting piece can be adjusted through the flexible connecting piece, and the multi-angle adjustable function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe connectors, in particular to an angle-adjustable elbow pipe fitting. Background Art

[0002] Elbows are usually installed at the bends of the pipeline to change the direction of the pipeline. The bending angle of the elbow is fixed. Commonly used 90-degree elbows can change the pipeline from the X-axis direction to the Y-axis direction. In water heating systems, air conditioning systems or other more complex piping systems, the pipelines are numerous and the spacing is relatively small. The bending angle of the pipeline may deviate. The installation of fixed-angle elbows is not flexible and inconvenient. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an angle-adjustable elbow pipe fitting, which can freely adjust the bending angle and simplify the pipeline installation.

[0004] To this end, the technical solution of the utility model is: an angle-adjustable elbow pipe fitting, comprising a first pipe connector, a flexible connector and a second pipe connector, one end of the first pipe connector and the second pipe connector is provided with a first clamping portion, and the other end is a pipe interface; the flexible connector comprises a middle corrugated tube and second clamping portions at both ends, and the second clamping portions are respectively clamped and connected with the first clamping portions of the first pipe connector and the second pipe connector.

[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: the inner wall of the first clamping part is provided with multiple circles of buckles, the outer circle of the second clamping part is provided with multiple grooves, the second clamping part is inserted into the first clamping part, the buckles are buckled and connected with the grooves, and the second clamping part and the first clamping part can rotate relative to each other.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the outer ring of the second clamping part is also provided with a plurality of sealing grooves, sealing rings are provided in the sealing grooves, and the second clamping part is sealed and connected with the first clamping part.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the first pipe connector includes a large-diameter section, a transition section and a small-diameter section, the large-diameter section is connected to the first pipe interface, and the small-diameter section is connected to the first clamping portion.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the pipe interfaces of the first pipe connector and the second pipe connector are internal thread interfaces, external thread interfaces or flexible joints, and the caliber of the first pipe interface of the first pipe connector is larger than the caliber of the second pipe interface of the second pipe connector.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. The elbow is divided into three parts, and a flexible connector is used to connect the first pipe connector and the second pipe connector. The first pipe connector and the second pipe connector can adjust the direction of the pipe interface through the flexible connector to achieve a multi-angle adjustable function.

[0011] 2. The flexible connector and the first pipe connector and the second pipe connector are connected by snap fasteners, so that the first pipe connector and the second connector can rotate at the same angle as the flexible connector, which is more convenient to install and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a structural sectional view of the utility model;

[0014] Figure 3 for Figure 2 A partial enlarged view of

[0015] Figure 4 This is a bending state diagram of the utility model.

[0016] Marked in the figure are: first pipe connecting piece 1, large diameter section 11, transition section 12, small diameter section 13, first pipe interface 14, flexible connecting piece 2, bellows 21, second pipe connecting piece 3, second pipe interface 31, first clamping part 4, first clamping buckle 41, second clamping buckle 42, second clamping part 5, first clamping groove 51, second clamping groove 52, sealing groove 53, sealing ring 6. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0019] See the attached drawings. The angle-adjustable elbow pipe fitting described in this embodiment includes a first pipe connector 1, a flexible connector 2 and a second pipe connector 3. The first pipe connector 1 is a hard different-diameter straight-through pipe joint. The first pipe connector 1 includes a large-diameter section 11, a transition section 12 and a small-diameter section 13. The inner diameter of the large-diameter section 11 is larger than that of the small-diameter section 13. The transition section 12 is a truncated cone structure, connecting the large-diameter section 11 and the small-diameter section 13. The small-diameter section 13 of the first pipe connector 1 is connected to the first clamping portion 4, and the large-diameter section 11 is connected to the first pipe interface 14. The first pipe interface 14 can be set to an internal thread interface, an external thread interface or a flexible joint according to the use requirements, or other common interface types.

[0020] The second pipe connector 3 is a hard equal-diameter straight-through pipe connector. A first clamping portion 4 is provided at one end of the second pipe connector 3, and a second pipe interface 31 is provided at the other end. The second pipe interface 31 can be set to an internal thread interface, an external thread interface or a flexible joint, or other common interface types according to usage requirements.

[0021] The flexible connector 2 includes a bellows 21 in the middle and second clamping parts 5 at both ends. The bellows 21 can be made of metal bellows, which is convenient for shaping and has a long service life. The second clamping parts 5 are respectively clamped and connected with the first clamping parts 4 of the first pipe connector 1 and the second pipe connector 3.

[0022] The first clamping part 4 is provided with a first clamping buckle 41 and a second clamping buckle 42 on the inner wall, and the second clamping part 5 is provided with a first clamping groove 51, a second clamping groove 52 and a sealing groove 53 on the outer ring; the second clamping part 5 is inserted into the first clamping part 4, the first clamping buckle 41 is buckled and connected with the first clamping groove 51, and the second clamping buckle 42 is buckled and connected with the second clamping groove 52, the first clamping part 4 and the second clamping part 5 are fixed by double buckling by two clamps, and the second clamping part 5 and the first clamping part 4 can rotate relative to each other.

[0023] A sealing ring 6 is provided in the sealing groove 53 of the second clamping part 5, and a sealing ring can also be provided in the first clamping groove or the second clamping groove as required, so that the second clamping part 5 and the first clamping part 4 are sealed and connected, thereby improving the sealing performance of the pipe fitting.

[0024] When in use, the first pipe interface of the first pipe connector 1 is tightened and fixed to the large-diameter pipeline or equipment interface, and then the bellows 21 is adjusted according to the position of the next connection port so that the second pipe interface on the second pipe connector 3 can be connected to the next connection port, avoiding changes in the installation line and simplifying the installation difficulty.

[0025] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An angle-adjustable elbow pipe, characterized in that: It includes a first pipe connector, a flexible connector and a second pipe connector, wherein one end of the first pipe connector and the second pipe connector is provided with a first clamping portion, and the other end is a pipe interface; the flexible connector includes a corrugated tube in the middle and second clamping portions at both ends, and the second clamping portions are respectively clamped and connected with the first clamping portions of the first pipe connector and the second pipe connector.

2. The angle-adjustable elbow pipe fitting according to claim 1, characterized in that: The inner wall of the first clamping part is provided with multiple circles of buckles, the outer circle of the second clamping part is provided with multiple grooves, the second clamping part is inserted into the first clamping part, the buckles are buckled and connected with the grooves, and the second clamping part and the first clamping part can rotate relatively.

3. The angle-adjustable elbow pipe fitting according to claim 2, characterized in that: The outer ring of the second clamping part is also provided with a plurality of sealing grooves, and sealing rings are arranged in the sealing grooves. The second clamping part is sealed and connected with the first clamping part.

4. The angle-adjustable elbow pipe according to claim 1, characterized in that: The first pipe connector comprises a large-diameter section, a transition section and a small-diameter section, the large-diameter section is connected to the first pipe interface, and the small-diameter section is connected to the first clamping portion.

5. The angle-adjustable elbow pipe fitting according to claim 4, characterized in that: The pipe interfaces of the first pipe connector and the second pipe connector are internal thread interfaces, external thread interfaces or flexible joints, and the caliber of the first pipe interface of the first pipe connector is larger than the caliber of the second pipe interface of the second pipe connector.

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