Stainless steel internal thread loose joint elbow

Abstract

The utility model discloses a stainless steel internal thread loose joint elbow, and relates to the technical field of elbows, the stainless steel internal thread loose joint elbow comprises an elbow main body, the elbow main body comprises a middle corrugated elbow pipe section and round pipe orifice sections at two ends, the end parts of the round pipe orifice sections are provided with check rings, the inner walls of the check rings are provided with notches, the round pipe orifice sections are sleeved with internal thread loose joint sleeves, and the internal thread loose joint sleeves are sleeved with external thread loose joint sleeves. The tail end of the internal thread loose joint sleeve extends in the axial direction, a gasket is arranged between the round pipe opening section and the internal thread loose joint sleeve, and the round pipe opening section is sleeved with the gasket. Through the arrangement of the elbow body and the gasket, the bending angle of the corrugated elbow section of the elbow body can be adjusted according to site conditions, the gasket separates the internal thread loose joint sleeve and the elbow body, the influence of existing friction force on the internal thread loose joint sleeve is reduced, and the reliability and stability of assembly of the internal thread loose joint sleeve and a pipeline connecting pipe are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elbows, in particular to a stainless steel internal thread flexible elbow. Background Art

[0002] A flexible elbow is a common pipe connector. After the flexible elbow is connected to the connecting pipe on the pipeline, the elbow body can be fine-tuned in direction. The flexible elbow makes pipeline connection simpler, and it is also easier to disassemble and replace, which greatly saves the cost of pipeline connection. However, the bending angle of the elbow body of the existing flexible elbow cannot be adjusted according to the on-site conditions, and after the internal thread flexible sleeve of the existing flexible elbow is assembled with the pipeline, its end face is in direct contact with the elbow body of the flexible elbow, and there is a large friction force between them. When the direction of the elbow body of the flexible elbow is fine-tuned, the friction force is directly applied to the internal thread flexible sleeve. During the adjustment process, when the internal thread flexible sleeve rotates with the movement of the elbow body under the condition of large friction, a slight connection deviation is generated in the assembly of the internal thread flexible sleeve and the pipeline, affecting the tightness of the connection. To this end, in response to the above problems, we provide a stainless steel internal thread flexible elbow. Utility Model Content

[0003] The utility model aims to provide a stainless steel internal thread flexible joint elbow, which solves the problems of connection reliability and connection adjustability of the flexible joint elbow.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stainless steel internal thread flexible joint elbow, comprising an elbow body, wherein the elbow body comprises a middle corrugated elbow section and round pipe mouth sections at both ends, and a retaining ring is arranged at the end of the round pipe mouth section, and a notch is arranged on the inner wall of the retaining ring, an internal thread flexible joint sleeve is sleeved on the round pipe mouth section, the tail end of the internal thread flexible joint sleeve is extended axially, and a gasket is arranged between the round pipe mouth section and the internal thread flexible joint sleeve, and the gasket is sleeved on the round pipe mouth section.

[0005] Preferably, a sealing ring is assembled on the end surface of the elbow body through a notch.

[0006] Preferably, the elbow body is threadedly assembled with the outer thread connection end of the connecting pipe through an inner thread union sleeve, and a sealing ring is connected between the elbow body and the opposite end of the connecting pipe.

[0007] Preferably, the outer wall of the inner thread flexible sleeve is hexagonal, and the extension section of the tail end of the inner thread flexible sleeve is sleeved on the outer periphery of the outer thread connecting end of the connecting tube.

[0008] Preferably, the inner diameter of the inner thread flexible sleeve extension section is larger than the inner diameter of the inner thread connecting section of the inner thread flexible sleeve.

[0009] The utility model has the following beneficial effects:

[0010] The utility model provides an elbow body and a gasket, and the corrugated elbow section of the elbow body can adjust its bending angle according to the on-site conditions compared with the traditional elbow pipe body, so that the connection of the pipeline becomes simpler and the adaptability is better. The gasket is provided between the elbow body and the inner thread joint sleeve. After the inner thread joint sleeve and the pipeline connecting pipe are assembled, the elbow body is finely adjusted. The inner thread joint sleeve and the elbow body are separated by the gasket, and the influence of the existing friction on the inner thread joint sleeve is reduced, thereby improving the reliability and stability of the assembly of the inner thread joint sleeve and the pipeline connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the internal thread flexible elbow of the utility model;

[0012] Figure 2 This is a schematic diagram of the connection structure between the internal thread flexible elbow and the connecting pipe of the utility model;

[0013] Figure 3 It is a schematic diagram of the connection structure between the internal thread flexible joint elbow and the sealing ring of the utility model.

[0014] In the figure: 1, elbow body; 11, corrugated elbow section; 12, round pipe mouth section; 121, retaining ring; 122, notch; 2, internal thread joint; 3, gasket; 4, sealing ring; 5, connecting pipe. DETAILED DESCRIPTION

[0015] 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 without creative work are within the scope of protection of the utility model.

[0016] like Figure 1-3 As shown, the utility model provides a technical solution: a stainless steel internal thread flexible elbow, including an elbow body 1, the elbow body 1 includes a middle corrugated elbow section 11 and two end round pipe mouth sections 12, and a retaining ring 121 is arranged at the end of the round pipe mouth section 12, and a notch 122 is arranged on the inner wall of the retaining ring 121, and a sealing ring 4 is assembled on the end face of the elbow body 1 through the notch 122.

[0017] An inner thread joint sleeve 2 is sleeved on the circular tube mouth section 12, and a retaining ring 121 is used to prevent the inner thread joint sleeve 2 from falling off. The outer wall of the inner thread joint sleeve 2 is hexagonal, and a gasket 3 is arranged between the circular tube mouth section 12 and the inner thread joint sleeve 2. The gasket 3 is sleeved on the circular tube mouth section 12. After installation, the gasket 3 is located at the position of the retaining ring 121.

[0018] The elbow body 1 is threadedly assembled with the outer thread connection end of the connecting pipe 5 through the inner thread union sleeve 2, and the sealing ring 4 connects the elbow body 1 and the opposite ends of the connecting pipe 5 to seal the connection. The tail end of the inner thread union sleeve 2 is extended axially.

[0019] The inner diameter of the extension section of the inner thread joint sleeve 2 is larger than the inner diameter of the inner thread connecting section of the inner thread joint sleeve 2, and the extension section of the tail end of the inner thread joint sleeve 2 is sleeved on the outer periphery of the outer thread connecting end of the connecting tube 5, protecting the outer thread of the connecting tube 5 and the inner thread connecting section of the inner thread joint sleeve 2, avoiding aging caused by direct exposure to the external environment.

Claims

1. A stainless steel internal thread flexible elbow, comprising an elbow body (1), characterized in that: The elbow body (1) comprises a middle corrugated elbow section (11) and round pipe mouth sections (12) at both ends, and a retaining ring (121) is provided at the end of the round pipe mouth section (12), and a notch (122) is provided on the inner wall of the retaining ring (121), an inner thread joint sleeve (2) is sleeved on the round pipe mouth section (12), the rear end of the inner thread joint sleeve (2) is extended along the axial direction, and a gasket (3) is provided between the round pipe mouth section (12) and the inner thread joint sleeve (2), and the gasket (3) is sleeved on the round pipe mouth section (12).

2. A stainless steel female thread joint elbow according to claim 1, characterized in that: The end surface of the elbow body (1) is assembled with a sealing ring (4) through a notch (122).

3. A stainless steel internal thread flexible elbow according to claim 2, characterized in that: The elbow body (1) is threadedly assembled with the outer thread connection end of the connecting pipe (5) through the inner thread joint sleeve (2), and the sealing ring (4) is connected between the opposite ends of the elbow body (1) and the connecting pipe (5).

4. A stainless steel female thread joint elbow according to claim 3, characterized in that: The outer wall of the inner thread flexible sleeve (2) is hexagonal, and the tail end extension section of the inner thread flexible sleeve (2) is sleeved on the outer periphery of the outer thread connection end of the connecting pipe (5).

5. A stainless steel female thread joint elbow according to claim 4, characterized in that: The inner diameter of the extension section of the inner thread flexible sleeve (2) is greater than the inner diameter of the inner thread connecting section of the inner thread flexible sleeve (2).

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