Air pipe with traceless air duct

Abstract

The utility model provides an air pipe with a traceless air duct. The air pipe comprises an inner air pipe, an outer air pipe is installed on the surface of the inner air pipe, a hollow-square-shaped heat preservation cavity is formed between the inner air pipe and the outer air pipe, and the hollow-square-shaped heat preservation cavity is filled with four sets of sound insulation cotton; the inner air pipe is composed of a first L-shaped pipe fitting and a second L-shaped pipe fitting, the first L-shaped pipe fitting comprises a long side plate, one side of the long side plate is connected with a short side plate in a bent mode, the two ends of the long side plate are connected with first L-shaped plates in a bent mode respectively, first bolt holes are formed in one sides of the first L-shaped plates at equal intervals, and second bolt holes are formed in the other sides of the first L-shaped plates. The two ends of the short side plate are bent to be connected with second L-shaped plates correspondingly, and second bolt holes are formed in one sides of the second L-shaped plates at equal intervals. Through mutual cooperation of the inner air pipe, the hollow-square-shaped heat preservation cavity, the sound insulation cotton and the sealing assembly, the interior of the air pipe can be integrally designed, and the situation that air leaks due to the fact that gaps exist in the air pipe is avoided.

Description

Technical Field

[0001] This utility model relates to the field of air duct technology, specifically to an air duct with a seamless airflow design. Background Technology

[0002] In the field of ventilation systems, traditional duct structures typically consist of ventilation ducts, U-shaped clamps, and connecting angle irons. For example... Figure 7 As shown, the ventilation duct is composed of four panels, each consisting of an L-shaped inner panel, an L-shaped outer panel, and sound insulation cotton in between. The sound insulation cotton is bonded to the inner and outer panels with adhesive. During assembly, after the four panels are assembled into a ventilation duct, workers need to install four sets of U-shaped clamps at each end of the duct and fix the U-shaped clamps to the inner wall of the duct with bolts. Finally, connecting angle irons are installed on the outside of the U-shaped clamps to complete the overall assembly. However, this traditional structure has obvious technical defects.

[0003] Assembly gaps are easily generated at the joint between the U-shaped plate and the folded edge, which reduces the sealing performance of the air duct;

[0004] There is a risk of loosening at bolted connections during long-term use, which may affect structural stability;

[0005] The exposed U-shaped clamps disrupt the overall aesthetic of the ductwork. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a duct with a seamless air duct, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A duct with a seamless airflow includes an inner duct; an outer duct is installed on the surface of the inner duct, and a U-shaped insulation cavity is provided between the inner duct and the outer duct. The U-shaped insulation cavity is filled with sound insulation cotton, and four sets of sound insulation cotton are provided. Sealing components are installed around both ends of the inner duct. The inner duct is composed of a first L-shaped fitting and a second L-shaped fitting. The first L-shaped fitting includes a long side plate, a short side plate is bent and connected to one side of the long side plate, and a first L-shaped plate is bent and connected to both ends of the long side plate. A first bolt hole is provided at equal intervals on one side of the first L-shaped plate. A second L-shaped plate is bent and connected to both ends of the short side plate. A second bolt hole is provided at equal intervals on one side of the second L-shaped plate. The second L-shaped fitting adopts the same structure as the first L-shaped fitting. A sealing component is installed at one end of the first L-shaped plate and between one end of the second L-shaped plate.

[0009] Furthermore, the external air duct includes a wide plate and a narrow plate, and two sets of each wide plate and narrow plate are provided. A wide plate is installed on one side of the first L-shaped plate, and a narrow plate is installed on one side of the second L-shaped plate. A first through hole is provided at both ends of one side of the wide plate, and a second through hole is provided at both ends of one side of the narrow plate.

[0010] Furthermore, the external air duct also includes a first L-shaped angle iron. The two ends of one side of the wide plate are respectively installed with the first L-shaped angle iron. The first L-shaped angle iron is provided with first holes at equal intervals on one side. The first bolt is installed in the first hole. One end of the first bolt passes through the first hole, the first through hole and the first bolt hole in sequence and is threadedly connected. The top surface of the first L-shaped angle iron is provided with first mating holes at equal intervals.

[0011] Furthermore, it also includes a second L-shaped angle iron, on one side of the narrow plate, a second L-shaped angle iron is welded to one end of the first L-shaped angle iron, a second hole is provided at equal intervals on one side of the first L-shaped angle iron, a second bolt is installed in the second hole, one end of the second bolt passes through the second hole, a second through hole and is threadedly connected to the second bolt hole, and a second mating hole is provided at equal intervals on the top surface of the second L-shaped angle iron.

[0012] Furthermore, the sealing assembly includes a hollow column, which is installed at one end of the first L-shaped plate and between one end of the second L-shaped plate. An L-shaped sealing plate is fixedly connected to the top surface of the hollow column, and the bottom surface of the L-shaped sealing plate is in contact with the top surfaces of the first L-shaped plate and the second L-shaped plate, respectively.

[0013] Furthermore, the sealing assembly includes a folding plate, one side of which is fixedly connected to the L-shaped sealing plate. One side of the folding plate is in contact with the inner wall of the inner duct, and the other side of the folding plate is fixedly connected to the inner wall of the inner duct by a self-tapping bolt.

[0014] This invention provides an air duct with a seamless airflow design. Compared with the prior art, it has the following advantages:

[0015] 1. By cooperating with the first L-shaped pipe fitting and the second L-shaped pipe fitting in the inner air duct 1, a complete inner air duct is formed. Since the first L-shaped pipe fitting is made of a single plate bent into a long side plate, a short side plate, a first L-shaped plate and a second L-shaped plate, the interior of the inner air duct is designed as a whole, reducing air leakage due to gaps when the air flows. At the same time, the design of the first L-shaped plate and the second L-shaped plate also facilitates the connection with the outer air duct in the later stage.

[0016] 2. The cooperation between the first L-shaped angle iron and the second L-shaped angle iron facilitates the connection between air ducts in the later stage, so that they can be combined into a complete air duct.

[0017] 3. The L-shaped sealing plate in the sealing assembly can seal the gap between the first L-shaped plate and the second L-shaped plate caused by bending, thus preventing leakage when the air flows. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0020] Figure 2 A schematic diagram of the sealing assembly structure of this utility model is shown;

[0021] Figure 3 A schematic diagram of the overall partial cross-section of this utility model is shown;

[0022] Figure 4 This shows a schematic diagram of the overall partial cross-section of the present invention from another perspective;

[0023] Figure 5 A schematic diagram of the internal air duct structure of this utility model is shown;

[0024] Figure 6 A schematic diagram of the external air duct structure of this utility model is shown;

[0025] Figure 7 This diagram shows a partial cross-sectional view of the conventional air duct structure of this utility model;

[0026] The diagram shows: 1. Inner duct; 11. First L-shaped fitting; 111. Long side plate; 112. Short side plate; 113. First L-shaped plate; 114. First bolt hole; 115. Second L-shaped plate; 116. Second bolt hole; 12. Second L-shaped fitting; 2. Outer duct; 21. Wide plate; 22. Narrow plate; 23. First perforation; 24. Second perforation; 25. First L-shaped angle iron; 26. First hole; 27. First bolt; 28. First mating hole; 29. ​​Second L-shaped angle iron; 210. Second hole; 211. Second bolt; 212. Second mating hole; 3. U-shaped insulation cavity; 4. Sound insulation cotton; 5. Sealing assembly; 51. Hollow column; 52. L-shaped sealing plate; 53. Folded plate; 54. Self-tapping bolt. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1

[0028] To address the technical problems in the background section, the following type of duct with a seamless airflow design is provided:

[0029] Combination Figures 1-6 As shown, this utility model provides an air duct with a seamless airflow, including an inner air duct 1; an outer air duct 2 is installed on the surface of the inner air duct 1, and a U-shaped heat insulation cavity 3 is provided between the inner air duct 1 and the outer air duct 2. The U-shaped heat insulation cavity 3 is filled with sound insulation cotton 4, and four sets of sound insulation cotton 4 are provided. Sealing components 5 are installed around both ends of the inner air duct 1; the inner air duct 1 is composed of a first L-shaped pipe fitting 11 and a second L-shaped pipe fitting 12. The first L-shaped pipe fitting 11 includes a long side plate 111, and one side of the long side plate 111 is bent and connected to a short... The two ends of the side plate 112 and the long side plate 111 are respectively bent and connected to the first L-shaped plate 113. The first L-shaped plate 113 has first bolt holes 114 at equal intervals on one side. The two ends of the short side plate 112 are respectively bent and connected to the second L-shaped plate 115. The second L-shaped plate 115 has second bolt holes 116 at equal intervals on one side. The second L-shaped pipe fitting 12 adopts the same structure as the first L-shaped pipe fitting 11. A sealing component 5 is installed at one end of the first L-shaped plate 113 and between one end of the second L-shaped plate 115.

[0030] The first L-shaped fitting 11 and the second L-shaped fitting 12 in the inner air duct 1 cooperate with each other to form a complete inner air duct 1. Since the first L-shaped fitting 11 is made of a single plate bent into a long side plate 111, a short side plate 112, a first L-shaped plate 113 and a second L-shaped plate 115, the interior of the inner air duct 1 forms an integrated design, reducing the possibility of air leakage due to gaps when the air is flowing.

[0031] The design of the first type plate 113 and the second L-shaped plate 115 also facilitates the later connection with the external air duct 2. Example 2

[0032] like Figures 1-6 As shown, based on the above embodiments, this embodiment further provides the following:

[0033] The external duct 2 includes a wide plate 21 and a narrow plate 22, with two sets of each. The wide plate 21 is installed on one side of the first L-shaped plate 113, and the narrow plate 22 is installed on one side of the second L-shaped plate 115. The two ends of one side of the wide plate 21 are respectively provided with first through holes 23, and the two ends of one side of the narrow plate 22 are respectively provided with second through holes 24. The external duct 2 also includes a first L-shaped angle iron 25. The two ends of one side of the wide plate 21 are respectively provided with first L-shaped angle iron 25. The first L-shaped angle iron 25 is provided with first holes 26 at equal intervals on one side of the first L-shaped angle iron 25. The first bolt 27 is installed in the first hole 26. One end of the first bolt 27 passes through the first hole 26 and the first through hole 23 in sequence and is threaded to the first bolt hole 114. The top surface of the first L-shaped angle iron 25 is provided with first mating holes 28 at equal intervals. It also includes a second L-shaped angle iron 29, which is installed on one side of the narrow plate 22. The second L-shaped angle iron 29 is welded to one end of the first L-shaped angle iron 25. The first L-shaped angle iron 25 has second holes 210 at equal intervals on one side. The second bolts 211 are installed in the second holes 210. One end of the second bolts 211 passes through the second holes 210, the second through holes 24 and is threaded to the second bolt holes 116. The top surface of the second L-shaped angle iron 29 has second mating holes 212 at equal intervals.

[0034] The cooperation between the first L-shaped angle iron 25 and the second L-shaped angle iron 29 facilitates the connection between air ducts in the later stage, so that they can be combined into a complete air duct. Example 3

[0035] like Figures 1-6 As shown, based on the above embodiments, this embodiment further provides the following:

[0036] The sealing assembly 5 includes a hollow column 51, which is installed between one end of the first L-shaped plate 113 and one end of the second L-shaped plate 115. An L-shaped sealing plate 52 is fixedly connected to the top surface of the hollow column 51, and the bottom surface of the L-shaped sealing plate 52 is in contact with the top surfaces of the first L-shaped plate 113 and the second L-shaped plate 115. The sealing assembly 5 also includes a folding plate 53, which is fixedly connected to one side of the L-shaped sealing plate 52. One side of the folding plate 53 is in contact with the inner wall of the inner duct 1, and the other side of the folding plate 53 is fixedly connected to the inner wall of the inner duct 1 by a self-tapping screw 54.

[0037] The L-shaped sealing plate 52 in the sealing assembly 5 can seal the gap caused by bending between the first L-shaped plate 113 and the second L-shaped plate 115, thus preventing leakage when the air is flowing.

[0038] Working principle and usage process of this utility model:

[0039] In use:

[0040] First, a whole plate is slotted to facilitate bending later. When bending, the whole plate is first bent into the shape of the first L-shaped plate 113 and the second L-shaped plate 115. After bending, it is then bent into the long side plate 111 and the short side plate 112, thus obtaining the first L-shaped pipe fitting 11 and the second L-shaped pipe fitting 12.

[0041] During assembly, the workers first splice the first L-shaped pipe fitting 11 and the second L-shaped pipe fitting 12 to form the shape of the inner duct 1, ensuring that there are no gaps or minimal gaps between the spliced ​​first L-shaped pipe fitting 11 and the second L-shaped pipe fitting 12. Then, the workers place the sound insulation cotton 4 onto the surface of the inner duct 1, ensuring that the sound insulation cotton 4 is positioned between the two sets of first L-shaped plates 113 or the two sets of second L-shaped plates 115. After the surface of the inner duct 1 is filled, the wide plate 21 is installed. During installation, firstly, one side of the wide plate 21 is aligned with the first... The surfaces of the L-shaped plates 113 come into contact with each other. After contact, one side of the first L-shaped angle iron 25 is attached to the surface of the wide plate 21. After attachment, the workers use the first bolt 27 to thread the first hole 26, the first through hole 23 and the first bolt hole 114 in sequence. This fixes the wide plate 21 and the first L-shaped angle iron 25 onto the first L-shaped plate 113. Then, the narrow plate 22 and the second L-shaped angle iron 29 are installed in the same way as the wide plate 21 and the first L-shaped angle iron 25.

[0042] After all installations are completed and the initial assembly of the duct is finished, the workers use a welding machine to weld the two ends of the first L-shaped angle iron 25 and the second L-shaped angle iron 29 to form a single piece. After installation, the sealing component 5 is installed. During installation, the hollow column 51 is aligned with the break between the first L-shaped plate 113 and the second L-shaped plate 115 and inserted. After insertion, the L-shaped sealing plate 52 begins to seal the break between the first L-shaped plate 113 and the second L-shaped plate 115. At the same time, the folding plate 53 is inserted into the surface of the inner duct 1. The workers then use self-tapping screws 54 to connect and fix the folding plate 53 to the surface of the inner duct 1.

[0043] After fixing, the workers then use adhesive to seal the gap at the connection between the first L-shaped pipe fitting 11 and the second L-shaped pipe fitting 12. After sealing, the gap between the sealing component 5 and the inner branch pipe 1 is also sealed. Once sealed, the overall installation is complete.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A duct with a seamless airflow design, characterized in that: It includes an inner air duct (1); an outer air duct (2) is installed on the surface of the inner air duct (1); a U-shaped heat insulation cavity (3) is provided between the inner air duct (1) and the outer air duct (2); the U-shaped heat insulation cavity (3) is filled with sound insulation cotton (4); four sets of sound insulation cotton (4) are provided; and sealing components (5) are installed around both ends of the inner air duct (1). The internal duct (1) is composed of a first L-shaped fitting (11) and a second L-shaped fitting (12). The first L-shaped fitting (11) includes a long side plate (111). A short side plate (112) is bent and connected to one side of the long side plate (111). A first L-shaped plate (113) is bent and connected to both ends of the long side plate (111). A first bolt hole (114) is provided at equal intervals on one side of the first L-shaped plate (113). A second L-shaped plate (115) is bent and connected to both ends of the short side plate (112). A second bolt hole (116) is provided at equal intervals on one side of the second L-shaped plate (115). The second L-shaped fitting (12) adopts the same structure as the first L-shaped fitting (11). A sealing component (5) is installed between one end of the first L-shaped plate (113) and one end of the second L-shaped plate (115).

2. The air duct with a seamless airflow according to claim 1, characterized in that: The external air duct (2) includes a wide plate (21) and a narrow plate (22). There are two sets of the wide plate (21) and the narrow plate (22). The wide plate (21) is installed on one side of the first L-shaped plate (113), and the narrow plate (22) is installed on one side of the second L-shaped plate (115). The two ends of one side of the wide plate (21) are respectively provided with a first perforation (23), and the two ends of one side of the narrow plate (22) are respectively provided with a second perforation (24).

3. A duct with a seamless airflow design according to claim 2, characterized in that: The external air duct (2) also includes a first L-shaped angle iron (25). The two ends of one side of the wide plate (21) are respectively equipped with the first L-shaped angle iron (25). The first L-shaped angle iron (25) is provided with first holes (26) at equal intervals on one side. The first bolt (27) is installed in the first hole (26). One end of the first bolt (27) passes through the first hole (26), the first through hole (23) and the first bolt hole (114) in sequence and is threadedly connected. The top surface of the first L-shaped angle iron (25) is provided with first mating holes (28) at equal intervals.

4. A duct with a seamless airflow design according to claim 3, characterized in that: It also includes a second L-shaped angle iron (29), on one side of the narrow plate (22) the second L-shaped angle iron (29) is installed, one end of the first L-shaped angle iron (25) is welded with the second L-shaped angle iron (29), one side of the first L-shaped angle iron (25) is provided with second holes (210) at equal intervals, a second bolt (211) is installed in the second hole (210), one end of the second bolt (211) passes through the second hole (210), the second through hole (24) and is threaded to the second bolt hole (116), and the top surface of the second L-shaped angle iron (29) is provided with second mating holes (212) at equal intervals.

5. A duct with a seamless airflow design according to claim 4, characterized in that: The sealing assembly (5) includes a hollow column (51). The hollow column (51) is installed between one end of the first L-shaped plate (113) and one end of the second L-shaped plate (115). An L-shaped sealing plate (52) is fixedly connected to the top surface of the hollow column (51). The bottom surface of the L-shaped sealing plate (52) is in contact with the top surfaces of the first L-shaped plate (113) and the second L-shaped plate (115).

6. A duct with a seamless airflow design according to claim 5, characterized in that: The sealing assembly (5) includes a folding plate (53). The folding plate (53) is fixedly connected to one side of the L-shaped sealing plate (52). One side of the folding plate (53) is in contact with the inner wall of the inner air duct (1). One side of the folding plate (53) is fixedly connected to the inner wall of the inner air duct (1) by a self-tapping bolt (54).

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