Improved double-sided color steel plate composite air pipe

Abstract

The utility model discloses an improved double-sided color steel plate composite air pipe which comprises a rectangular air pipe formed by splicing four pipe wall parts, the combined flange plate is composed of four side edge clamping pieces and injection molding corners assembled between every two side edge clamping pieces. Wherein the two combined flange plates are inserted into ports in the left end and the right end of the rectangular air pipe respectively. According to the improved double-sided color steel plate composite air pipe, the rectangular air pipe formed by splicing the four pipe wall parts is adopted, and then the port of the rectangular air pipe is inserted through the combined flange plate, so that the rectangular air pipe formed by splicing is locked, the assembly is simpler, the structural integrity is higher after combination, and the service life of the air pipe is prolonged. And compared with a traditional air pipe, the air pipe is lighter.

Description

Technical Field

[0001] The utility model relates to a composite air duct, in particular to an improved double-sided color steel plate composite air duct. Background Art

[0002] Composite duct is a type of piping material used in heating, ventilation, and air conditioning systems.

[0003] In conjunction with the publication (announcement) number: CN104534185B, the publication (announcement) date: 2017-01-04, a composite air duct disclosed relates to the field of air ducts, and is composed of an outer tube wall, an insulation layer and an inner tube wall, wherein the inner tube wall is placed inside the outer tube wall, and support connecting rods are evenly distributed between the outer periphery of the inner tube wall and the inner periphery of the outer tube wall, and the gap between the inner tube wall and the outer tube wall is filled with the insulation layer. The composite air duct of the present invention has a simple structure, is easy to manufacture, has high stability, overcomes the problem that the traditional structure cannot be cleaned after adding support rods inside, has good sealing performance, is durable, has good fireproof performance, and has a long maintenance cycle.

[0004] In the prior art including the above patents, after the air duct is assembled on site, a frame is welded around the air duct, and finally the air duct is hoisted by nailing. In this construction method, the air duct construction is relatively cumbersome, and the weight of a single air duct after assembly is relatively heavy, and the stability of the air duct structure after assembly is not high. Utility Model Content

[0005] The utility model aims to provide an improved double-sided color steel plate composite air duct to solve the above problems.

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

[0007] An improved double-sided color steel plate composite air duct, comprising:

[0008] A rectangular air duct assembled from four pipe wall sections;

[0009] A modular flange, which consists of four side clamps and an injection-molded angle assembled between every two of the side clamps;

[0010] The two combined flanges are respectively plugged into ports at the left and right ends of the rectangular air duct.

[0011] Preferably, the four tube wall portions are formed by bending a whole double-sided color steel plate with grooves formed at predetermined intervals.

[0012] Preferably, the four tube wall portions are divided into a first tube wall, a second tube wall, a third tube wall and a fourth tube wall from one side to the other side in sequence;

[0013] A retention edge bent into a U-shaped bending portion is provided on the first tube wall at one side opposite to the second tube wall, and the retention edge is attached to the outer wall of the fourth tube wall and fixed by a blind rivet.

[0014] Preferably, the side clamp is divided into an inner portion, an outer portion, and a connecting cover according to the structure, and the inner portion and the outer portion are arranged in parallel and the first ends of the two are connected by the connecting cover.

[0015] Preferably, the second end of the injection molding angle is provided with a slot having the same spacing as that between the inner side portion and the outer side portion, and the first end is in the same horizontal plane as the connection cover;

[0016] The injection molding corners are respectively provided with tenon parts inserted into the groove between the inner part and the outer part, and the inner wall of the slot on the tenon part and the inner wall of the groove between the inner part and the outer part are in the same horizontal plane.

[0017] Preferably, the injection-molded corner is further provided with a side joint portion which is arranged symmetrically about the center of the tenon portion, and an inlay groove is formed between the tenon portion and the joint portion, and the inner portion and the outer portion are respectively inlaid in the inlay groove.

[0018] As a preferred embodiment, it also includes:

[0019] A raised portion disposed on the outer wall of the outer side portion and the outer wall of the tube wall portion and in contact with the outer wall on one side;

[0020] A clamping member plugged into the two protruding portions on the same side;

[0021] Preferably, the groove inside the clamp is a T-shaped structure.

[0022] Preferably, the side walls to which the two protrusions on the same side are attached are provided with continuous and corresponding arc-shaped grooves;

[0023] It also includes an inserting portion with a plurality of arc-shaped protrusions arranged thereon, wherein the inserting portion is located in a groove opened in a side wall where two protrusions on the same side are in contact, and the arc-shaped protrusions are located in the arc-shaped grooves.

[0024] In the above technical scheme, the utility model provides an improved double-sided color steel plate composite air duct, which has the following beneficial effects: a rectangular air duct assembled from four pipe wall portions is used, and then the ports of the rectangular air duct are plugged in through a combined flange, thereby achieving locking of the assembled rectangular air duct, making assembly simpler, and the structural integrity after assembly is higher, and the weight is also lighter than that of traditional air ducts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of the structure of a rectangular air duct provided in an embodiment of the utility model;

[0027] Figure 2 The overall structural diagram provided for the embodiment of the utility model;

[0028] Figure 3 A schematic diagram of the structure of the side clamp provided in an embodiment of the utility model;

[0029] Figure 4 A schematic diagram of the exploded structure of the side clamps and injection-molded corners provided in an embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1. Pipe wall; 11. Retention edge; 2. Rectangular air duct; 3. Combined flange; 31. Side clamp; 311. Inner part; 312. Outer part; 313. Connecting cover; 32. Injection molding angle; 321. Mortise and tenon part; 322. Side joint part; 323. Inlay groove; 100. Raised part; 200. Clamp; 300. Insertion part. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] like Figure 1-4 As shown, an improved double-sided color steel plate composite air duct comprises:

[0034] A rectangular air duct 2 assembled from four pipe wall portions 1;

[0035] The assembled flange 3 comprises four side clamps 31 and an injection-molded angle 32 assembled between every two side clamps 31;

[0036] The two combined flanges 3 are respectively plugged into ports at the left and right ends of the rectangular air duct 2 .

[0037] Specifically, the four pipe wall parts 1 in the above embodiment are actually a rectangular air duct 2 formed by bending a whole double-sided color steel plate with grooves cut at predetermined intervals. Figure 1It can be seen that the four tube wall parts 1 are divided into the first tube wall, the second tube wall, the third tube wall and the fourth tube wall from the left to the right, and the first tube wall is provided with a retention edge 11 bent into a U-shaped bending portion on one side of the first tube wall relative to the second tube wall, and the retention edge 11 is attached to the outer wall of the fourth tube wall and fixed by a blind rivet. Thus, the rectangular air duct 2 is formed by bending, thereby eliminating the side joint seam problem after assembly, making the rectangular air duct 2 more integrated.

[0038] The above-mentioned rectangular air duct 2 is assembled from four pipe wall portions 1, and then the ports of the rectangular air duct 2 are plugged in through the combined flange 3, so as to lock the assembled rectangular air duct 2, which makes assembly simpler, and the structural integrity is higher after assembly, and the weight is lighter than that of traditional air ducts.

[0039] As an embodiment further provided by the present invention, Figure 3 and Figure 4 It can be seen that the side clamp 31 is divided into an inner part 311, an outer part 312, and a connecting cover 313 according to the structure. The inner part 311 and the outer part 312 are arranged in parallel and the first ends of the two are connected by the connecting cover 313.

[0040] Secondly, the second end of the injection molding angle 32 is provided with a slot having the same spacing as that between the inner portion 311 and the outer portion 312, while the first end and the connecting cover 313 are at the same level;

[0041] The injection molding corner 32 is respectively provided with a tenon portion 321 inserted into the groove between the inner portion 311 and the outer portion 312 , and the inner wall of the slot on the tenon portion 321 is in the same horizontal plane as the inner wall of the groove between the inner portion 311 and the outer portion 312 .

[0042] Furthermore, the injection molding corner 32 is also provided with a side joint portion 322 arranged symmetrically about the center of the tenon portion 321, and an inlay groove 323 is formed between the tenon portion 321 and the joint portion 322, and the inner portion 311 and the outer portion 312 are respectively inlaid in the inlay groove 323.

[0043] Specifically, when assembling the flange 3, the tenon portion 321 is inserted into the groove between the inner portion 311 and the outer portion 312. During the insertion process, the inner portion 311 and the outer portion 312 are respectively embedded in the embedding groove 323 to be fixed. After completion, the assembled flange 3 is directly inserted into the port of the rectangular air duct 2. After it reaches the predetermined position, a blind rivet is used to pass through the side joint portion 322 to fix the assembled flange 3 and the rectangular air duct 2. Figure 2 shown.

[0044] As another embodiment further provided by the present invention, the above embodiment also includes:

[0045] The protrusion 100 is disposed on the outer wall of the outer portion 312 and the outer wall of the tube wall portion 1 and is in contact with the outer wall on one side;

[0046] A clamp 200 inserted into two protrusions 100 on the same side;

[0047] The groove inside the clamp 200 is a T-shaped structure.

[0048] Furthermore, the side walls where the two protrusions 100 on the same side are in contact are provided with continuous and corresponding arc-shaped grooves;

[0049] It also includes an inserting portion 300 with a plurality of arc-shaped protrusions arranged thereon. The inserting portion 300 is located in a groove opened in the side wall where two protrusions 100 on the same side are in contact, and the arc-shaped protrusions are located in the arc-shaped grooves.

[0050] Specifically, before inserting the combined flange 3 directly into the port of the rectangular air duct 2, put the plug-in portion 300 into the groove of the raised portion 100 on the tube wall portion 1. Then press down to make the combined flange 3 completely inserted into the port of the rectangular air duct 2. At this time, the raised portion 100 on the outer portion 312 fits with the raised portion 100 on the inlet tube wall portion 1, thereby clamping the plug-in portion 300. At this time, insert the clamp 200 from one end of the two raised portions 100 on the same side to the other end, and use the side seam cap to cover the two ends of the clamp 200. Finally, use a blind rivet to pass through the side joint portion 322 to fix the combined flange 3 and the rectangular air duct 2, as shown in FIG. Figure 2 shown.

[0051] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An improved double-sided color steel plate composite air duct, characterized in that: include: A rectangular air duct (2) assembled from four pipe wall portions (1); A combined flange (3) comprising four side clamps (31) and an injection-molded angle (32) assembled between every two of the side clamps (31); The two combined flanges (3) are respectively plugged into ports at the left and right ends of the rectangular air duct (2).

2. The improved double-sided color steel plate composite air duct according to claim 1 is characterized in that: The four tube wall parts (1) are formed by bending a whole double-sided color steel plate with grooves formed at predetermined intervals.

3. The improved double-sided color steel plate composite air duct according to claim 1, characterized in that: The four tube wall portions (1) are divided into a first tube wall, a second tube wall, a third tube wall and a fourth tube wall in sequence from one side to the other side; A retention edge (11) bent into a U-shaped bend is provided on one side of the first tube wall opposite to the second tube wall, and the retention edge (11) is attached to the outer wall of the fourth tube wall and fixed by means of a blind rivet.

4. The improved double-sided color steel plate composite air duct according to claim 1 is characterized in that: The side clamp (31) is divided into an inner portion (311), an outer portion (312), and a connecting cover (313) according to the structure; the inner portion (311) and the outer portion (312) are arranged in parallel and the first ends of the two are connected via the connecting cover (313).

5. The improved double-sided color steel plate composite air duct according to claim 1 is characterized in that: The second end of the injection molding angle (32) is provided with a slot having the same spacing as that between the inner portion (311) and the outer portion (312), while the first end and the connection cover (313) are in the same horizontal plane; The injection molding corners (32) are respectively provided with tenon inserting parts (321) inserted into the groove between the inner part (311) and the outer part (312), and the inner wall of the slot on the tenon inserting part (321) and the inner wall of the groove between the inner part (311) and the outer part (312) are in the same horizontal plane.

6. The improved double-sided color steel plate composite air duct according to claim 5, characterized in that: The injection molding corner (32) is also provided with a side joint portion (322) arranged symmetrically about the center of the tenon portion (321), and an inlay groove (323) is formed between the tenon portion (321) and the joint portion (322), and the inner portion (311) and the outer portion (312) are respectively inlaid in the inlay groove (323).

7. The improved double-sided color steel plate composite air duct according to claim 1 is characterized in that: Also includes: A raised portion (100) disposed on the outer wall of the outer portion (312) and the outer wall of the tube wall portion (1), and in contact with the outer wall on one side; A clamping member (200) is inserted into the two protruding portions (100) on the same side.

8. The improved double-sided color steel plate composite air duct according to claim 7, characterized in that: The groove inside the clamp (200) is a T-shaped structure.

9. The improved double-sided color steel plate composite air duct according to claim 7, characterized in that: The side walls to which the two protrusions (100) on the same side are attached are provided with continuous and corresponding arc-shaped grooves; It also includes an inserting portion (300) on which a plurality of arc-shaped protrusions are arranged, wherein the inserting portion (300) is located in a groove formed in a side wall where two protrusions (100) on the same side are in contact, and the arc-shaped protrusions are located in the arc-shaped grooves.

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