Composite air pipe capable of adjusting connection direction

Abstract

The utility model discloses a composite air pipe capable of adjusting the connecting direction, and belongs to the technical field of composite air pipes. A composite air pipe capable of adjusting the connecting direction comprises a first air pipe section and a second air pipe section. By arranging the rotatable connecting mechanism, the first air pipe section and the second air pipe section can rotate relatively, so that the connecting direction of the air pipe can be adjusted conveniently and quickly, the whole air pipe system does not need to be disassembled, the installation and maintenance time is saved, and the installation cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of composite duct technology, specifically relating to a composite duct with adjustable connection direction. Background Technology

[0002] Composite ducts are ventilation ducts made of multiple materials, offering advantages such as light weight, high strength, corrosion resistance, sound insulation, and heat insulation. They are widely used in ventilation systems in buildings, industry, and transportation. During the installation and use of ventilation systems, it is often necessary to adjust the connection direction of the ducts according to the actual spatial layout and ventilation requirements to achieve the best ventilation effect.

[0003] However, existing composite ducts typically use fixed connection methods, such as flange connections and plug-in connections, which are difficult to adjust once the connection direction is determined. If the connection direction needs to be changed, the entire duct system often needs to be disassembled and a new duct section reinstalled, which is not only time-consuming and labor-intensive, but also increases installation costs and maintenance difficulty. In addition, traditional composite ducts also have certain problems with the sealing and stability of the connection parts, which can easily lead to air leakage, noise and other phenomena, affecting the normal operation of the ventilation system. Therefore, we propose a composite duct with adjustable connection direction. Utility Model Content

[0004] The purpose of this invention is to provide a composite duct with adjustable connection direction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable composite duct includes a first duct section and a second duct section. One end of the first duct section has a first connecting portion, and one end of the second duct section has a second connecting portion. A rotatable connecting mechanism is provided between the first and second connecting portions. The connecting mechanism includes a rotating sleeve, a fixing ring, and a locking assembly. The rotating sleeve is fitted over the outside of the first connecting portion, and its inner sidewall has an annular groove. The outer sidewall of the first connecting portion has an annular protrusion that mates with the groove. The outer sidewall of the rotating sleeve has an external thread, and the inner sidewall of the fixing ring has an internal thread that mates with the external thread. The outer sidewall of the second connecting portion has an annular mounting groove, and a sealing ring is provided within the mounting groove. The inner sidewall of the sealing ring fits against the outer sidewall of the second connecting portion, and the outer sidewall of the sealing ring fits against the inner sidewall of the rotating sleeve. The locking assembly includes a locking bolt and a locking nut. The outer sidewall of the rotating sleeve has a plurality of evenly distributed locking holes, and the outer sidewall of the second connecting portion has a plurality of corresponding threaded holes. The locking bolt passes through the locking holes and is threadedly connected to the threaded holes. The locking nut is located at the end of the locking bolt.

[0007] It should be noted in the solution that the rotating sleeve and the first connecting part form a rotating fit structure through an annular groove and an annular protrusion.

[0008] It is worth noting that the retaining ring is threadedly connected to the external thread of the rotating sleeve via an internal thread, and is used to fix the axial position of the rotating sleeve.

[0009] Furthermore, it should be noted that the sealing ring is made of rubber elastic material, and its cross-sectional shape matches the mounting groove.

[0010] Preferably, the number of locking holes and threaded holes is 1 to 2, and they are evenly distributed along the circumference of the rotating sleeve and the second connecting part.

[0011] Preferably, the walls of the first and second duct sections are composite structures of glass fiber reinforced composite material layers and aluminum foil layers.

[0012] Compared with the prior art, the adjustable connection direction composite duct provided by this utility model has at least the following beneficial effects:

[0013] This invention features a rotatable connecting mechanism that allows the first and second duct sections to rotate relative to each other, enabling convenient and quick adjustment of the duct connection direction without disassembling the entire duct system. This saves installation and maintenance time and reduces installation costs. The rotating sleeve and the first connecting part in the connecting mechanism are engaged by an annular groove and a protrusion, ensuring the stability and reliability of the rotation. The fixing ring is threaded onto the outside of the rotating sleeve to secure it and prevent it from loosening during ventilation. The sealing ring effectively ensures the sealing of the connection, preventing air leakage and improving the operating efficiency and stability of the ventilation system. The locking component secures the rotating sleeve and the second connecting part together, ensuring that the duct remains stable after being adjusted to the appropriate connection direction and will not rotate. Attached Figure Description

[0014] Figure 1 This is a front view of the structure of this utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the separation structure between the rotating sleeve and the first connecting part of this utility model.

[0017] In the picture:

[0018] 1. First duct section; 2. Second duct section; 3. First connecting part; 4. Second connecting part; 5. Rotating sleeve; 6. Fixing ring; 7. Locking assembly; 8. Groove; 9. Protrusion; 10. External thread; 11. Internal thread; 12. Mounting groove; 13. Sealing ring; 14. Locking hole; 15. Threaded hole; 16. Locking bolt; 17. Locking nut. Detailed Implementation

[0019] The present invention provides a composite duct with adjustable connection direction, which will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the following embodiments are preferred for the purpose of providing a more detailed description; however, other alternative methods can be used by those skilled in the art to implement some known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0020] It should be noted that references to "one embodiment," "embodiment," "exemplary embodiment," or "some embodiments" in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when describing a specific feature, structure, or characteristic in conjunction with embodiments, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0021] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term “one or more” as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term “based on” can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0022] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes something “above” something without an intervening feature or layer.

[0023] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly accordingly.

[0024] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0025] Please see Figure 1-3 This utility model provides a composite duct with adjustable connection direction, including a first duct section 1 and a second duct section 2. One end of the first duct section 1 is provided with a first connecting part 3, and one end of the second duct section 2 is provided with a second connecting part 4. A rotatable connecting mechanism is provided between the first connecting part 3 and the second connecting part 4. The connecting mechanism includes a rotating sleeve 5, a fixing ring 6 and a locking component 7.

[0026] The rotating sleeve 5 is sleeved on the outside of the first connecting part 3 of the first duct section 1. The inner wall of the rotating sleeve 5 is provided with an annular groove 8, and the outer wall of the first connecting part 3 is provided with an annular protrusion 9 that cooperates with the groove 8, so that the rotating sleeve 5 can rotate relative to the first connecting part 3. The outer wall of the rotating sleeve 5 is provided with an external thread 10, and the inner wall of the fixing ring 6 is provided with an internal thread 11 that cooperates with the external thread 10. The fixing ring 6 is threadedly connected to the outside of the rotating sleeve 5.

[0027] An annular mounting groove 12 is provided on the outer side wall of the second connecting part 4. A sealing ring 13 is provided in the mounting groove 12. The inner side wall of the sealing ring 13 is tightly fitted with the outer side wall of the second connecting part 4, and the outer side wall of the sealing ring is tightly fitted with the inner side wall of the rotating sleeve 5 to ensure the sealing of the connection part. The sealing ring 13 can be made of elastic materials such as rubber and has good sealing performance.

[0028] The locking assembly 7 includes a locking bolt 16 and a locking nut 17. Multiple locking holes 14 are evenly arranged on the outer side wall of the rotating sleeve 5. Multiple threaded holes 15 are arranged on the outer side wall of the second connecting part 4 corresponding to the locking holes 14. The locking bolt 16 passes through the locking hole 14 and is threadedly connected to the threaded hole 15. The locking nut 17 is located at the end of the locking bolt 16 and is used to fix the locking bolt 16. The number of locking holes 14 and threaded holes 15 can be set according to actual needs, usually 4 or 8, to ensure the stability of locking.

[0029] When using this invention, firstly, the rotating sleeve 5 is fitted onto the first connecting part 3, so that the protrusion 9 mates with the groove 8. Then, the second connecting part 4 is inserted into the rotating sleeve 5, so that the sealing ring 13 fits tightly against the inner wall of the rotating sleeve 5. Next, the rotating sleeve 5 is rotated to adjust the connection direction of the first duct section 1 and the second duct section 2 until the desired angle is reached. Finally, the locking bolt 16 is passed through the locking hole 14 and threaded into the threaded hole 15, and the locking nut 17 is tightened to fix the rotating sleeve 5 and the second connecting part 4 together. At the same time, by rotating the fixing ring 6, it mates with the external thread 10 of the rotating sleeve 5 to further fix the position of the rotating sleeve 5 and prevent it from loosening during ventilation.

[0030] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by a person skilled in the art to which this utility model pertains. The words "comprising" or "including" and similar terms used in this utility model mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The words "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite duct with adjustable connection direction, comprising a first duct section (1) and a second duct section (2), characterized in that: One end of the first duct section (1) is provided with a first connecting part (3), and one end of the second duct section (2) is provided with a second connecting part (4). A rotatable connecting mechanism is provided between the first connecting part (3) and the second connecting part (4). The connecting mechanism includes a rotating sleeve (5), a fixing ring (6), and a locking component (7). The rotating sleeve (5) is sleeved on the outside of the first connecting part (3), and its inner sidewall is provided with an annular groove (8). The outer sidewall of the first connecting part (3) is provided with an annular protrusion (9) that cooperates with the groove (8). The outer sidewall of the rotating sleeve (5) is provided with an external thread (10), and the inner sidewall of the fixing ring (6) is provided with an internal thread that cooperates with the external thread (10). (11) An annular mounting groove (12) is provided on the outer wall of the second connecting part (4), and a sealing ring (13) is provided in the mounting groove (12). The inner wall of the sealing ring (13) is fitted with the outer wall of the second connecting part (4), and the outer wall is fitted with the inner wall of the rotating sleeve (5). The locking assembly (7) includes a locking bolt (16) and a locking nut (17). Multiple locking holes (14) are evenly provided on the outer wall of the rotating sleeve (5), and multiple threaded holes (15) are correspondingly provided on the outer wall of the second connecting part (4). The locking bolt (16) passes through the locking hole (14) and is threadedly connected to the threaded hole (15). The locking nut (17) is provided at the end of the locking bolt (16).

2. The composite duct with adjustable connection direction according to claim 1, characterized in that: The rotating sleeve (5) and the first connecting part (3) form a rotating fit structure through the annular groove (8) and the annular protrusion (9).

3. The composite duct with adjustable connection direction according to claim 1, characterized in that: The fixing ring (6) is threadedly connected to the external thread (10) of the rotating sleeve (5) via the internal thread (11) to fix the axial position of the rotating sleeve (5).

4. The composite duct with adjustable connection direction according to claim 1, characterized in that: The sealing ring (13) is made of rubber elastic material and its cross-sectional shape matches the mounting groove (12).

5. The composite duct with adjustable connection direction according to claim 1, characterized in that: The number of locking holes (14) and threaded holes (15) is 4 to 8, and they are evenly distributed along the circumference of the rotating sleeve (5) and the second connecting part (4).

6. The composite duct with adjustable connection direction according to claim 1, characterized in that: The walls of the first duct section (1) and the second duct section (2) are composite structures of glass fiber reinforced composite material layer and aluminum foil layer.

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