Single-layer elliptic air pipe

Abstract

The utility model discloses a single-layer oval air pipe which comprises an air pipe body, and a shaping mechanism is arranged in an inner cavity of the air pipe body. The shaping mechanism comprises a supporting rod, a movable ring, a pushing rod and a shaping piece, the movable ring is arranged on the outer circle of the supporting rod in a sleeving mode, one end of the pushing rod is fixedly connected with the side face of the movable ring, and the measuring ratio of the shaping piece is fixedly connected with the other end of the pushing rod. According to the single-layer oval air pipe, the inner wall of the air pipe body is extruded and supported through the supporting rods, the pushing rods and the shaping pieces, the overall hardness of the oval air pipe can be improved, and it can be effectively prevented that deformation occurs when the air pipe is used in a hoisting mode, and the attractiveness and the tightness of the air pipe are affected.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to a single-layer elliptical air duct. Background Art

[0002] The air duct is a piping system used for air transportation and distribution. As the name suggests, it is mainly used for air transportation and is often used in the ventilation systems of buildings.

[0003] There are various designs for the shapes of branch pipes, including rectangular tubes, round tubes and oval tubes. The shape retention of rectangular tubes and round tubes is relatively better than that of oval ducts. However, according to actual usage, oval ducts are also used. They are installed on buildings in a hanging manner. When in use, they are subjected to pulling force and are easily deformed, especially on both sides of the oval. Moreover, the single-layer oval duct structure mentioned in the present technical solution is even more prone to deformation, which affects the safety and aesthetics of the imaging department's later use and the airtightness of the overall ventilation system.

[0004] Therefore, we propose a single-layer elliptical air duct structure to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a single-layer elliptical air duct to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A single-layer elliptical air duct comprises an air duct main body, wherein a shaping mechanism is arranged in the inner cavity of the air duct main body.

[0008] The shaping mechanism includes a support rod, a movable ring, a push rod and a shaping sheet. The movable ring is sleeved on the outer ring of the support rod, one end of the push rod is fixedly connected to the side of the movable ring, and the side of the shaping sheet is fixedly connected to the other end of the push rod.

[0009] Preferably, both end surfaces of the air duct body are connected to fixing plates with flanges for butt-jointing the air duct.

[0010] Preferably, a threaded structure is provided on the outer wall of the support rod, and a pushing sleeve is sleeved on the outer ring of the support rod.

[0011] Preferably, the thread structure is divided into two sections, and the thread directions of the two sections of the thread structure are opposite, and the pushing sleeve is threadedly connected to the support rod.

[0012] Preferably, the shaping sheet is a sheet in a short arc shape.

[0013] Preferably, anti-slip strips are arranged at equal distances on the outer wall of the pushing sleeve.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The single-layer elliptical air duct can increase the overall hardness of the elliptical air duct by squeezing and supporting the inner wall of the air duct body through the support rod, the push rod and the shaping sheet, that is, it can effectively prevent deformation during hoisting and use, which affects the appearance and tightness of the air duct.

[0016] 2. The single-layer elliptical air duct can be used in conjunction with a support rod with a threaded structure, a push sleeve, a movable ring, a push rod and a shaping piece made of a short arc sheet to support and shape air ducts with different inner diameters, and has better adaptability.

[0017] 3. The single-layer elliptical air duct is designed and used with multiple push rods. When the air duct is actually used, the multiple push rods can also serve as a filtering structure to filter and adsorb some impurities carried by the air flowing in the air duct, thereby improving the air quality of the air supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the shaping mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the support rod structure of the utility model.

[0021] In the figure: 1. Duct body; 2. Support rod; 3. Movable ring; 4. Push rod; 5. Shaping piece; 6. Threaded structure; 7. Push sleeve; 8. Anti-slip strip; 9. Flange. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides a single-layer elliptical air duct technical solution:

[0024] Embodiment 1:

[0025] like Figure 1As shown, the elliptical air duct mainly includes an air duct body 1, and a shaping mechanism is arranged in the inner cavity of the air duct body 1.

[0026] like Figure 2 and Figure 3 As shown, the shaping mechanism is mainly composed of a support rod 2, a movable ring 3, a push rod 4 and a shaping piece 5. The movable ring 3 is sleeved on the outer ring of the support rod 2, the push rod 4 is fixedly installed on the end face of the movable ring 3, and the inner side surface of the shaping piece 5 is fixedly connected to the end of the push rod 4.

[0027] Wherein, flanges 9 for butt-jointing the air duct are fixedly mounted on both end surfaces of the air duct body 1 .

[0028] In this embodiment, when using an elliptical air duct, before the air duct sections are butt-jointed and installed, the shaping mechanism is installed into the inner cavity of the air duct body 1, that is, the outer sides of the two shaping pieces 5 are pressed against the two inner walls of the air duct body 1. Through the squeezing of the push rod 4, the shaping piece 5 can be squeezed and fit on the inner wall of the air duct body 1, and then the air duct is butt-jointed and installed, so that it can be used in the subsequent use.

[0029] Embodiment 2:

[0030] Two sections of threaded structures 6 are arranged on the outer ring of the support rod 2 in the shaping mechanism, and a pushing sleeve 7 is threadedly installed on the outer ring of the threaded structure 6 of the support rod 2 .

[0031] The thread directions of the two sections of thread structure 6 are opposite.

[0032] Among them, the shaping sheet 5 is a sheet-like structure with a short arc.

[0033] Among them, anti-slip strips 8 are arranged at equal distances on the outer wall of the pushing sleeve 7.

[0034] In this embodiment, based on Example 1, when the overall width of the shaping mechanism is not enough for the width of the elliptical air duct, the pushing sleeve 7 can be directly operated to allow the pushing sleeve 7 to continuously move closer to the movable ring 3 along the axial direction of the support rod 2, and then squeeze and push the movable ring 3, and then push the shaping sheet 5 and the pushing rod 4 through the movable ring 3 to continuously move closer to the inner wall of the elliptical air duct, thereby achieving the purpose of squeezing the inner wall of the air duct. By using the short arc sheet-shaped shaping sheet 5, air ducts with different inner diameters can be extruded, supported and shaped.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected 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.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-layer elliptical air duct, comprising an air duct body (1), characterized in that: A shaping mechanism is provided in the inner cavity of the air duct body (1); The shaping mechanism comprises a support rod (2), a movable ring (3), a push rod (4) and a shaping sheet (5); the movable ring (3) is sleeved on the outer ring of the support rod (2); one end of the push rod (4) is fixedly connected to the side of the movable ring (3); and the side of the shaping sheet (5) is fixedly connected to the other end of the push rod (4).

2. The single-layer elliptical air duct according to claim 1, characterized in that: Both end surfaces of the air duct body (1) are connected to flanges (9) for butt-jointing the air duct.

3. The single-layer elliptical air duct according to claim 1, characterized in that: A threaded structure (6) is provided on the outer wall of the support rod (2), and a pushing sleeve (7) is sleeved on the outer ring of the support rod (2).

4. The single-layer elliptical air duct according to claim 3, characterized in that: The threaded structure (6) is divided into two sections, and the thread directions of the two sections of the threaded structure (6) are opposite, and the pushing sleeve (7) is threadedly connected to the support rod (2).

5. The single-layer elliptical air duct according to claim 1, characterized in that: The shaping sheet (5) is a sheet in a short arc shape.

6. The single-layer elliptical air duct according to claim 4, characterized in that: Anti-slip strips (8) are arranged at equal distances on the outer wall of the pushing sleeve (7).

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