Assembly type heat preservation air pipe

Abstract

The utility model discloses an assembly type heat preservation air pipe which comprises air pipe bodies installed through a support part, each air pipe body comprises an air pipe unit, a first butt joint plate and a second butt joint plate, the first butt joint plate and the second butt joint plate are welded to the two ends of the air pipe unit respectively, and the two air pipe bodies are connected through an assembly part; the assembly part comprises a connecting rod and a clamping block which are welded to the two side walls of the butt joint plate, and a connecting plate and an elastic mechanism which are fixed to the side wall of the air pipe unit. A wrapping block matched with the clamping block is fixed to the top of the elastic mechanism. Through the design of the clamping blocks, the connecting rods, the connecting plates, the elastic mechanisms and the like, quick assembly of the air pipe bodies and matching of the clamping blocks and the wrapping blocks are achieved, clamping and limiting are achieved through the elastic force of the springs, complex fasteners are not needed, the installation process is greatly simplified, the construction efficiency is improved, and the construction cost is reduced. Longitudinal limiting is achieved through matching of the positioning columns and the positioning holes, and therefore the stable position of the air pipe body is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation duct technology, and in particular to an assembled thermal insulation duct. Background Technology

[0002] In modern building design, ventilation systems are an indispensable and important component. Their efficiency is directly related to indoor air quality and the overall energy efficiency of the building. Traditional duct systems are usually fabricated and installed on-site. This method not only has a long construction cycle, but also requires high construction technology and is prone to problems such as air leakage and poor insulation. To solve these problems, prefabricated insulated ducts have emerged.

[0003] Prefabricated insulated air ducts are ventilation duct systems that are quickly assembled using prefabricated components and standardized connection methods. Compared with traditional air ducts, prefabricated insulated air ducts have advantages such as short construction cycle, simple installation, and superior insulation performance. However, in practical applications, existing prefabricated insulated air ducts still have some shortcomings. For example, the connection method between the main body of the air duct is complicated and requires a large number of fasteners, which not only increases the installation cost, but also easily leads to air leakage problems due to loose connections.

[0004] To address the aforementioned issues, it is necessary to improve existing prefabricated insulated air ducts by optimizing the connection method between the main duct bodies to enhance the reliability and tightness of the connection. Based on this, this application proposes a new prefabricated insulated air duct that facilitates rapid and reliable connection and fixation between the main duct bodies. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a prefabricated insulated air duct.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A prefabricated insulated air duct includes an air duct body installed using a support frame. The air duct body includes an air duct unit, a first connecting plate, and a second connecting plate. The first connecting plate and the second connecting plate are respectively welded to both ends of the air duct unit. The two air duct bodies are connected by an assembly. The assembly includes a connecting rod and a locking block welded to the side wall of the second connecting plate, as well as a connecting plate and an elastic mechanism fixed to the side wall of the air duct unit. The top of the elastic mechanism is fixed with a wrapping block adapted to the locking block. When the locking block is inserted into the gap between the connecting plate and the wrapping block, the elastic mechanism deforms to achieve locking and limiting.

[0008] As a further embodiment of this utility model: the elastic mechanism includes a horizontal plate, a sliding rod, and a spring; the horizontal plate is welded to the side wall of the duct unit, the sliding rod slides through the through hole of the horizontal plate and is fixed to the wrapping block, the bottom of the sliding rod is connected to a pad, and the spring is sleeved on the outer wall of the sliding rod with its two ends abutting the bottom of the horizontal plate and the top of the pad, respectively.

[0009] As a further improvement of this utility model: positioning posts are welded to the two side walls of the docking plate, and positioning holes matching the positioning posts are opened on one surface of the docking plate. When the two air duct bodies are docked, longitudinal positioning is achieved by inserting the positioning posts into the positioning holes.

[0010] As a further embodiment of this utility model: the bracket includes a supporting sheet metal part and a suspension plate. The supporting sheet metal part is inserted into the limiting block on the side wall of the air duct unit through a limiting hole, and the top of the supporting sheet metal part abuts against the bottom of the pad. The suspension plate is rigidly fixed by fastening bolts passing through the mounting holes of the suspension plate, the supporting sheet metal part and the pad in sequence, and being threadedly connected with nuts.

[0011] As a further improvement of this utility model, the longitudinal section of the card block is a right trapezoid.

[0012] As a further improvement of this utility model, the duct unit is filled with thermal insulation filler.

[0013] As a further improvement of this utility model: the gap width between the wrapping block and the connecting plate is adapted to the maximum thickness of the card block, and the bottom surface of the wrapping block and the top surface of the connecting plate form a parallel clamping surface.

[0014] As a further improvement of this utility model, a fixing hole is provided on the top of the suspension plate.

[0015] Compared with the prior art, this utility model provides a prefabricated insulated air duct, which has the following beneficial effects:

[0016] 1. By designing locking blocks, connecting rods, connecting plates, and elastic mechanisms, rapid assembly between duct bodies is achieved. The cooperation between the locking blocks and the wrapping blocks utilizes the elastic force of springs to achieve locking and limiting, eliminating the need for complex fasteners, greatly simplifying the installation process and improving construction efficiency.

[0017] 2. The longitudinal positioning is achieved through the cooperation of the positioning column and the positioning hole, thereby ensuring the stable position of the duct body. The design of the bracket further enhances the stability of the duct. The supporting sheet metal parts and the duct body are initially positioned by the cooperation of the limiting block and the limiting hole, and then firmly fixed by the connection of the fastening bolts and nuts.

[0018] 3. The insulation filler such as rock wool inside the duct body has excellent thermal insulation performance, which can effectively prevent heat transfer and reduce energy loss. Rock wool material is not only resistant to high temperature and has good fire resistance, but also has good sound insulation effect, which further improves the overall performance of the duct system.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the connection structure of an assembled insulated air duct proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of an assembled insulated air duct proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the mounting structure of the support section of a prefabricated insulated air duct proposed in this utility model.

[0023] Figure 4 This is an exploded structural diagram of the support section of a prefabricated insulated air duct proposed in this utility model.

[0024] Figure 5 This is an enlarged view of point A.

[0025] In the diagram: 1. Duct unit; 2. Fixing hole; 3. Connecting plate 1; 4. Positioning post; 5. Clamping block; 6. Connecting rod; 7. Limiting block; 8. Support sheet metal part; 9. Insulation filler; 10. Positioning hole; 11. Connecting plate 2; 12. Connecting plate; 13. Limiting hole; 14. Spring; 15. Horizontal plate; 16. Wrapping block; 17. Slide rod; 18. Fastening bolt; 19. Nut; 20. Washer plate; 21. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] A type of prefabricated insulated air duct, such as Figures 1 to 5As shown, the duct body includes a duct unit 1, a first connecting plate 3, and a second connecting plate 11. The first connecting plate 3 and the second connecting plate 11 are welded to both ends of the duct unit 1, and the two duct bodies are connected by an assembly. The assembly includes a locking block 5 and a connecting rod 6. The connecting rod 6 is welded to the outer wall of one side of the second connecting plate 11, and the locking block 5 and the connecting rod 6 are welded and fixed together. The assembly also includes a connecting plate 12 and an elastic mechanism. The connecting plate 12 and the elastic mechanism are both fixed to the outer wall of one side of the duct unit 1, and the top of the elastic mechanism is fixed with a wrapping block 16 that is compatible with the locking block 5.

[0028] When assembling two duct bodies, the connecting rod 6 and the locking block 5 on one duct body are first moved toward the gap between the connecting plate 12 and the locking block 5 on the other duct body. In this embodiment, the longitudinal section of the locking block 5 is a right trapezoid. After the locking block 5 moves to contact the surface of the wrapping block 16, the inclined surface of the locking block 5 presses against the wrapping block 16. After the wrapping block 16 is pressed, the elastic element deforms, causing the wrapping block 16 to move downward relative to the connecting plate 12. When the locking block 5 is completely inserted into the gap between the connecting plate 12 and the wrapping block 16, the elastic element rebounds and resets. The connecting plate 12 and the wrapping block 16 wrap the locking block 5, preventing the locking block 5 from moving laterally relative to the wrapping block 16, thereby limiting the two duct bodies laterally.

[0029] The elastic element includes a horizontal plate 15 and a sliding rod 17. The horizontal plate 15 is welded to the side wall of the air duct unit 1, and the sliding rod 17 is slidably connected to the inner wall of the through hole opened on the surface of the horizontal plate 15. The bottom of the sliding rod 17 is fixed with a pad 21 by screws, and a spring 14 is sleeved on the outer wall of the sliding rod 17. The two ends of the spring 14 are respectively snapped into the bottom outer wall of the horizontal plate 15 and the top outer wall of the pad 21. The wrapping block 16 and the sliding rod 17 are fixedly connected.

[0030] During the assembly process, the elastic force of the spring 14 is used to make the wrapping block 16 cooperate with the connecting plate 12 to lock and limit the position of the locking block 5.

[0031] The outer wall of one side of the second docking plate 11 is welded with a positioning post 4, and the surface of the first docking plate 3 is provided with a positioning hole 10 that cooperates with the positioning post 4.

[0032] During the docking process of the two duct bodies, the positioning post 4 will gradually be inserted into the positioning hole 10. The positioning post 4 and the positioning hole 10 can be used to limit the longitudinal movement between the two duct bodies.

[0033] The bracket includes a suspension plate 18 and a supporting sheet metal part 8. The supporting sheet metal part 8 has a limiting hole 13 on its side wall, and a limiting block 7 that works with the limiting hole 13 is welded to the side wall of the air duct unit 1. The top of the supporting sheet metal part 8, the surface of the pad 21 and the bottom of the suspension plate 18 are all provided with mounting holes, and fastening bolts 19 are installed in the mounting holes. Nuts 20 are threaded to the outer circumference of the fastening bolts 19. The top of the suspension plate 18 is provided with a fixing hole 2.

[0034] The main body of the duct can be fixed to the top of the wall by means of suspension using the bracket. During assembly, after the limiting hole 13 is inserted into the outer wall of the limiting block 7, the top of the supporting sheet metal part 8 abuts against the bottom of the pad 21, thereby limiting the wrapping block 16 in the longitudinal direction and ensuring the stability between the wrapping block 16 and the connecting plate 12. Then, the suspension plate 18 is moved to the top of the pad 21. After the three mounting holes are aligned, the fastening bolts 19 are passed through the three mounting holes in sequence. The fastening bolts 19 and the nuts 20 are connected by threads, and the fastening bolts 19 and the nuts 20 are used to fix the suspension plate 18, the supporting sheet metal part 8 and the pad 21.

[0035] The duct unit 1 is filled with thermal insulation filler 9;

[0036] The insulation effect can be improved by filling the duct unit 1 with insulation filler 9. In this embodiment, the insulation filler 9 is preferably made of rock wool, which is resistant to high temperature and has good fire resistance. It has a low thermal conductivity and can effectively prevent heat transfer and reduce energy loss.

[0037] Working principle: When two duct bodies need to be connected, they are connected using an assembly, which includes a locking block 5 and a connecting rod 6. The connecting rod 6 is welded to the mating plate 11, and the locking block 5 is welded and fixed to the connecting rod 6. During assembly, the connecting rod 6 and locking block 5 on one duct body are aligned with the connecting plate 12 and the reserved space of the locking block on the other duct body. Since the longitudinal section of the locking block 5 is a right-angled trapezoid, when the locking block 5 moves to contact the wrapping block 16, its inclined surface will squeeze the wrapping block 16. The wrapping block 16 is connected to the connecting plate 12 through an elastic element. When the wrapping block 16 is squeezed, it will cause the sliding rod 17 to slide in the through hole of the horizontal plate 15 and compress the spring 14. When the locking block 5 is fully inserted into the gap between the connecting plate 12 and the wrapping block 16, the spring 14 rebounds and pushes the wrapping block 16 up, which, together with the connecting plate 12, locks the locking block 5, thus realizing the connection of the duct bodies. For lateral positioning, a positioning post 4 is welded to the second docking plate 11, and a positioning hole 10 is opened on the first docking plate 3 to cooperate with the positioning post 4. During the docking process of the air duct body, the positioning post 4 will gradually insert into the positioning hole 10, thereby realizing the longitudinal positioning of the two air duct bodies. A limiting hole 13 is opened on the supporting sheet metal part 8, and a limiting block 7 is welded on the air duct unit 1. The limiting hole 13 and the limiting block 7 are used together. During installation, the limiting hole 13 is aligned with the limiting block 7 and inserted. The top of the supporting sheet metal part 8 abuts against the bottom of the pad 21, thereby limiting the longitudinal positioning of the wrapping block 16. Then, the hanger suspension plate 18 is moved to the top of the pad 21. After ensuring that the three mounting holes are aligned, the fastening bolt 19 is passed through the three mounting holes in sequence and the fastening bolt 19 is tightened with the nut 20, thereby realizing the fixation between the hanger suspension plate 18, the supporting sheet metal part 8 and the pad 21.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prefabricated insulated air duct, characterized in that, The duct body is installed using a support bracket. The duct body includes a duct unit (1), a first docking plate (3), and a second docking plate (11). The first docking plate (3) and the second docking plate (11) are welded to both ends of the duct unit (1). The two duct bodies are connected by fittings. The fittings include a connecting rod (6) and a locking block (5) welded to the side wall of the second docking plate (11), as well as a connecting plate (12) and an elastic mechanism fixed to the side wall of the duct unit (1). The top of the elastic mechanism is fixed with a wrapping block (16) that matches the locking block (5). When the locking block (5) is inserted into the gap between the connecting plate (12) and the wrapping block (16), the elastic mechanism deforms to achieve locking and limiting.

2. The prefabricated insulated air duct according to claim 1, characterized in that, The elastic mechanism includes a horizontal plate (15), a slide rod (17), and a spring (14); the horizontal plate (15) is welded to the side wall of the duct unit (1), the slide rod (17) slides through the through hole of the horizontal plate (15) and is fixed to the wrapping block (16), the bottom of the slide rod (17) is connected to the pad (21), and the spring (14) is sleeved on the outer wall of the slide rod (17) and its two ends abut against the bottom of the horizontal plate (15) and the top of the pad (21) respectively.

3. The assembled insulated air duct according to claim 2, characterized in that, The second docking plate (11) has a positioning post (4) welded to its side wall. The first docking plate (3) has a positioning hole (10) that matches the positioning post (4). When the two air duct bodies are docked, the positioning post (4) is inserted into the positioning hole (10) to achieve longitudinal positioning.

4. The assembled insulated air duct according to claim 3, characterized in that, The bracket includes a supporting sheet metal part (8) and a suspension plate (18). The supporting sheet metal part (8) is inserted into the limiting block (7) on the side wall of the air duct unit (1) through the limiting hole (13), and the top of the supporting sheet metal part (8) abuts against the bottom of the pad (21). The suspension plate (18) is connected to the mounting holes of the suspension plate (18), the supporting sheet metal part (8) and the pad (21) by fastening bolts (19) in sequence, and is rigidly fixed by threaded connection with nuts (20).

5. A prefabricated insulated air duct according to claim 4, characterized in that, The longitudinal section of the card block (5) is a right trapezoid.

6. A prefabricated insulated air duct according to claim 5, characterized in that, The duct unit (1) is filled with thermal insulation filler (9).

7. A prefabricated insulated air duct according to claim 6, characterized in that, The gap width between the wrapping block (16) and the connecting plate (12) is adapted to the maximum thickness of the card block (5), and the bottom surface of the wrapping block (16) and the top surface of the connecting plate (12) form a parallel clamping surface.

8. A prefabricated insulated air duct according to claim 7, characterized in that, The top of the suspension plate (18) has a fixing hole (2).

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