Fireproof composite air pipe

Abstract

The utility model discloses a fireproof composite air pipe which comprises an air pipe outer shell, a fireproof layer and a heat insulation layer are arranged in the air pipe outer shell, a positioning foot and a locking groove are arranged on the outer side of one end of the air pipe outer shell, a locking support is arranged outside the air pipe outer shell, a lead screw is arranged in the locking support in a rotating mode, and two telescopic supports are arranged at the two ends of the lead screw in a threaded mode. The outer side of one end of the air pipe outer shell is provided with the positioning foot and the locking groove, and the outer side of the other end of the air pipe outer shell is provided with the lead screw, the telescopic support and the locking insertion block through the locking support, so that when two adjacent air pipe outer shells are installed and fixed, the air pipe outer shells can be fixed, and the positioning foot and the locking groove can be locked. One end of the positioning foot is inserted into the limiting sliding groove of the locking support, then the two telescopic supports are driven by rotating the lead screw to move and adjust oppositely, and therefore the two locking insertion blocks can be inserted into the locking groove of the positioning foot, two air pipe outer shells are rapidly installed and fixed, the stability of installation and fixing is high, and disassembly and assembly are convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to a fireproof composite air duct. Background Art

[0002] Air ducts are piping systems used for air delivery and distribution. There are two types: composite ducts and inorganic ducts. According to the cross-sectional shape, air ducts can be divided into circular ducts, rectangular ducts, and oblate ducts. Composite ducts are represented by rubber-plastic composite ducts, which are made of rubber-plastic composite insulation materials. They can completely replace traditional air ducts, air valves, air outlets, static pressure boxes, and insulation materials in air conditioning delivery and outlet systems.

[0003] A fireproof and heat-insulating composite air duct with application number 202221795802.2 in the prior art improves the problem that the installation process of the existing composite air duct is cumbersome, time-consuming and labor-intensive. The composite air duct comprises a wall and an air duct body that runs through the wall, wherein the wall is provided with a mounting hole that is compatible with the air duct body, the inner wall of the mounting hole is provided with a fixing groove, and grooves are preset on both sides of the air duct body. The air duct body is rotatably mounted with a bidirectional screw between the two grooves, and both ends of the bidirectional screw are threadedly connected to fixing blocks that are compatible with the fixing grooves. The air duct body is rotatably mounted on one side of the wall, and a transmission member is connected between the operating rod and the bidirectional screw. The present application can realize the rapid installation of the air duct body by providing the bidirectional screw, fixing block and fixing groove, and the installation process is convenient and time-saving and labor-saving. However, it is not convenient for the rapid installation and fixation of the two air duct outer shells, and the stability of the installation and fixation is general, making it inconvenient to disassemble and assemble. Utility Model Content

[0004] The purpose of the utility model is to provide a fireproof composite air duct to solve the problems in the prior art of being inconvenient for fast installation and fixation of two air duct outer shells, and having general installation and fixation stability and inconvenient assembly and disassembly.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fireproof composite air duct, comprising an air duct outer shell, the inner side of the air duct outer shell is provided with a fireproof layer and a heat insulation layer, a positioning foot is provided on the outer side of one end of the air duct outer shell, and a locking groove is provided on one side of the positioning foot, and a locking support is provided on the outer side of the other end of the air duct outer shell, a screw rod is provided in the limiting slide groove on the inner side of the locking support through the inner support plate and the bearing, two telescopic brackets are provided at both ends of the screw rod through two opposite external threads, one end of the telescopic bracket slides through the guide slide hole inside the inner support plate, and one end of the telescopic bracket is provided with a locking plug through the limiting slider, and the locking plug is plugged into the locking groove.

[0006] Furthermore, an inner positioning frame is provided at one end of the outer shell of the air duct, and the inner positioning frame is plugged into and matched with the interior of the one end of the outer shell of the air duct.

[0007] Furthermore, a first sealing gasket is provided on one end of the outer shell of the air duct, and a second sealing gasket is provided on the outer wall of the inner positioning frame.

[0008] Furthermore, the locking groove is a right-angled trapezoidal groove, and the locking plug is a right-angled trapezoidal block.

[0009] Furthermore, the limiting slide groove is a rectangular slide groove, and the outer wall of the inner support plate and the inner wall of the limiting slide groove are slidably arranged.

[0010] Furthermore, one end of the screw rod is connected to an adjusting rod through a gear set, and one end of the adjusting rod rotates and penetrates the outer wall of the locking support.

[0011] Furthermore, an adjusting handle is provided at one end of the adjusting rod, and a locking bolt is provided on the adjusting handle.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model is provided with a positioning foot and a locking groove on the outside of one end of the air duct outer shell, and a screw rod, two telescopic brackets and two locking plugs on the outside of the other end of the air duct outer shell are provided through a locking support. When installing and fixing two adjacent air duct outer shells, one end of the positioning foot is inserted into the limiting slide groove of the locking support, and then the two telescopic brackets are driven to move toward each other by rotating the screw rod, so that the two locking plugs can be inserted into the locking groove of the positioning foot, thereby realizing rapid installation and fixation of the two air duct outer shells, and the installation and fixation has high stability, and disassembly and assembly are convenient and quick.

[0014] 2. The utility model provides an inner positioning frame at one end of the air duct outer shell, and the inner positioning frame is plugged into and matched with the inner part of one end of the air duct outer shell, so as to improve the stability of the plug-in fixation between the two air duct outer shells. At the same time, a first sealing gasket is provided at one end of the air duct outer shell, and a second sealing gasket is provided on the outer wall of the inner positioning frame, so as to improve the sealing of the connection and fixation between the two air duct outer shells.

[0015] 3. The utility model adopts a locking groove as a right-angled trapezoidal groove, a locking plug as a right-angled trapezoidal block, a limiting slide as a rectangular slide, and an outer wall of the inner support plate and an inner wall of the limiting slide being slidingly arranged, so that by adjusting the depth of the locking plug inserted into the locking groove, the depth and tightness of the positioning foot inserted into the locking support can be adjusted, and it is convenient to insert the locking plug into the locking groove step by step and accurately to lock the positioning foot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 Schematic diagram of the structure of a single air duct outer shell of the present utility model;

[0018] Figure 2 Schematic diagram of the structure of the non-locking support of the present utility model;

[0019] Figure 3 Schematic diagram of the installation structure of two air duct outer shells of the present utility model.

[0020] In the figure: 1. Air duct outer shell; 2. Heat insulation layer; 3. Fireproof layer; 4. Locking groove; 5. Positioning foot; 6. Locking support; 7. Inner positioning frame; 8. Second gasket; 9. First gasket; 10. Inner support plate; 11. Lead screw; 12. Gear set; 13. Adjusting handle; 14. Locking plug; 15. Limit slider; 16. Telescopic support; 17. Guide sliding hole; 18. Locking bolt; 19. Limit sliding groove; 20. Adjusting rod. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , in the embodiments of the present utility model, a fireproof composite air duct includes an air duct outer shell 1. A fireproof layer 3 and a heat insulation layer 2 are provided inside the air duct outer shell 1, so that the air duct outer shell 1 has excellent fireproof and heat insulation effects. A positioning foot 5 is provided on the outer side of one end of the air duct outer shell 1, and a locking groove 4 is provided on one side of the positioning foot 5. A locking support 6 is provided on the outer side of the other end of the air duct outer shell 1. A lead screw 11 is rotatably provided in the limit sliding groove 19 inside the locking support 6 through an inner support plate 10 and a bearing. Two telescopic supports 16 are provided at both ends of the lead screw 11 with opposite external threads. One end of the telescopic support 16 slidably penetrates through the guide sliding hole 17 inside the inner support plate 10. A locking plug 14 is provided at one end of the telescopic support 16 through a limit slider 15, and the locking plug 14 is in plug-in fit with the locking groove 4. When installing and fixing two adjacent air duct outer shells 1, one end of the positioning foot 5 is inserted into the limit sliding groove 19 of the locking support 6, and then the two telescopic supports 16 are driven to move towards each other by rotating the lead screw 11, so that the two locking plugs 14 can be inserted into the locking groove 4 of the positioning foot 5, realizing the quick installation and fixing of the two air duct outer shells 1.

[0023] Such as Figure 1 AndFigure 3 As shown, in order to improve the sealing performance of the connection and fixation between the two air duct outer shells 1, an inner positioning frame 7 is provided at one end of the air duct outer shell 1, and the inner positioning frame 7 is plugged into and matched with the internal part of one end of the air duct outer shell 1, so as to improve the stability of the plug-in fixation between the two air duct outer shells 1, a first sealing gasket 9 is provided at one end of the air duct outer shell 1, and a second sealing gasket 8 is provided on the outer wall of the inner positioning frame 7, which can perform double-layer sealing treatment on the connection between the two air duct outer shells 1, so as to improve the sealing performance of the connection and fixation between the two air duct outer shells 1.

[0024] like Figure 2 and Figure 3 As shown, in order to adjust the depth and tightness of the positioning foot 5 inserted into the locking support 6, the locking groove 4 is also set to a right-angled trapezoidal groove, the locking plug 14 is a right-angled trapezoidal block, the limiting slide 19 is a rectangular slide, and the outer wall of the inner support plate 10 and the inner wall of the limiting slide 19 are slidingly arranged, so that by adjusting the depth of the locking plug 14 inserted into the locking groove 4, the depth and tightness of the positioning foot 5 inserted into the locking support 6 can be adjusted, and it is convenient to insert the locking plug 14 into the locking groove 4 step by step and accurately to lock the positioning foot 5.

[0025] like Figure 3 As shown, in order to facilitate the rotational adjustment of the screw rod 11, an adjusting rod 20 is connected to one end of the screw rod 11 through a gear set 12, and one end of the adjusting rod 20 rotates through the outer wall of the locking support 6. An adjusting handle 13 is also provided at one end of the adjusting rod 20, which facilitates the rotational adjustment of the screw rod 11, and a locking bolt 18 is provided on the adjusting handle 13, which can lock the screw rod 11 after rotation adjustment.

[0026] The working principle and usage process of the present invention are as follows: when in use, a positioning foot 5 and a locking groove 4 are provided on the outer side of one end of the air duct outer shell 1, and a screw rod 11, two telescopic brackets 16 and two locking plugs 14 are provided on the outer side of the other end of the air duct outer shell 1 through a locking support 6. When installing and fixing two adjacent air duct outer shells 1, one end of the positioning foot 5 is inserted into the limiting slide groove 19 of the locking support 6, and then the two telescopic brackets 16 are driven to move toward each other by rotating the screw rod 11, so that the two locking plugs 14 can be inserted into the locking groove 4 of the positioning foot 5, thereby realizing rapid installation and fixation of the two air duct outer shells 1, and the installation and fixation has high stability, and disassembly and assembly are convenient and quick.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fireproof composite air duct, comprising an air duct outer shell (1), characterized in that: The inner side of the air duct outer shell (1) is provided with a fireproof layer (3) and a heat insulation layer (2); a positioning foot (5) is provided on the outer side of one end of the air duct outer shell (1), and a locking groove (4) is provided on one side of the positioning foot (5); a locking support (6) is provided on the outer side of the other end of the air duct outer shell (1); a screw rod (11) is provided in the limiting sliding groove (19) on the inner side of the locking support (6) through the inner support plate (10) and the bearing for rotation; two telescopic brackets (16) are provided at both ends of the screw rod (11) through two opposite external threads; a locking plug (14) is provided at one end of the telescopic bracket (16) through the limiting slider (15), and the locking plug (14) is plugged into and matched with the locking groove (4).

2. The fireproof composite air duct according to claim 1, wherein: An inner positioning frame (7) is provided at one end of the air duct outer shell (1), and the inner positioning frame (7) is plugged into and matched with the interior of one end of the air duct outer shell (1).

3. The fireproof composite air duct according to claim 2, characterized in that: A first sealing gasket (9) is provided at one end of the air duct outer shell (1), and a second sealing gasket (8) is provided on the outer wall of the inner positioning frame (7).

4. A fireproof composite air duct according to claim 1, characterized in that: The locking groove (4) is a right-angled trapezoidal groove, and the locking insert (14) is a right-angled trapezoidal block.

5. A fireproof composite air duct according to claim 1, characterized in that: The limiting sliding groove (19) is a rectangular sliding groove, and the outer wall of the inner support plate (10) and the inner wall of the limiting sliding groove (19) are slidably arranged.

6. The fireproof composite air duct according to claim 1, wherein: One end of the screw rod (11) is connected to an adjusting rod (20) via a gear set (12), and one end of the adjusting rod (20) is rotated to penetrate the outer wall of the locking support (6).

7. A fireproof composite air duct according to claim 6, characterized in that: An adjusting handle (13) is further provided at one end of the adjusting rod (20), and a locking bolt (18) is provided on the adjusting handle (13).

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