Novel composite air pipe

Abstract

The utility model discloses a novel composite air pipe, and belongs to the technical field of building ventilation. A novel composite air pipe comprises an air pipe unit body, an end base is fixed to the end of the air pipe unit body, a concentric-square-shaped rubber block is fixed to the inner side wall of the end base in an attached mode, a cavity is formed in the concentric-square-shaped rubber block, a liquid conveying groove communicated with the cavity is formed in the end base, and a pressure inlet assembly is arranged on the end base. A reinforcing assembly is arranged in the end base. A certain amount of liquid is pressed into the hollow square-shaped rubber block through the pressure inlet assembly, so that the whole hollow square-shaped rubber block expands, the side wall of the expanded hollow square-shaped rubber block is tightly attached to the outer side wall of the air pipe unit body, and the air pipe unit body inserted into the end socket is sealed and fixed. The two air pipe unit bodies are quickly spliced, meanwhile, the sealing performance of the two air pipe unit bodies during splicing installation is effectively improved, airflow is prevented from leaking from splicing gaps, and the splicing efficiency of the air pipe unit bodies is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of building ventilation technology, specifically relating to a novel composite air duct. Background Technology

[0002] Air ducts are pipeline systems used for air transport and distribution. Currently, most air ducts used in ventilation systems in my country are single-layer ventilation ducts made of metal or non-metal materials. Composite air ducts, represented by rubber-plastic composite air ducts, are made of rubber-plastic composite insulation materials and can replace traditional air ducts, air valves, air outlets, static pressure boxes, and insulation materials.

[0003] During installation, the various duct units need to be assembled and connected. In the existing technology, most adjacent composite ducts are connected by flanges, and the connection points of each pipe are generally sealed with sealing rings. During assembly, multiple screws need to be repeatedly installed on the connecting flanges of the ducts. The duct assembly operation is cumbersome and inconvenient, which affects the overall assembly efficiency and makes it difficult to ensure that the duct splices have a high degree of sealing, allowing airflow to easily leak out from the splice gaps.

[0004] Therefore, a new type of composite duct is needed to solve the problems mentioned in the background section. Utility Model Content

[0005] The purpose of this invention is to provide a novel composite air duct to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel composite duct includes a duct unit body. An end cap is fixed to one end of the duct unit body, which is fitted to the other end of the duct unit body. A U-shaped rubber block is attached to the inner wall of the end cap, and a cavity is formed inside the U-shaped rubber block. An infusion tank communicating with the cavity is formed inside the end cap. A pressure inlet assembly is provided on the end cap, communicating with the end of the infusion tank away from the cavity. A reinforcement assembly is provided inside the end cap to fix one end of the duct unit body inserted into the end cap.

[0008] It should be noted in the solution that the pressure inlet assembly includes a liquid cylinder fixed to the side wall of the end seat. The end of the infusion tank away from the cavity is connected to the inside of the liquid cylinder. A nut sleeve is fixed inside the end of the liquid cylinder away from the end seat. A threaded rod is threadedly connected inside the nut sleeve. A piston plate that fits tightly against the inner side wall of the liquid cylinder is fixed at one end of the threaded rod.

[0009] It is worth noting that the reinforcement component includes a rubber sheet that is sealed and fixed at the bottom of the liquid cylinder, and a plug is fixed on the side of the rubber sheet. A slot that fits the plug is opened on the outer wall of the duct unit body.

[0010] It should be further noted that the end of the insertion post away from the rubber sheet is provided with an arc-shaped end.

[0011] Preferably, an end plate is fixed to the end of the threaded rod away from the piston plate, and a rubber sleeve is fitted onto the surface of the end plate.

[0012] Preferably, the spiral rubber block is located at the port of the end seat.

[0013] Compared with the prior art, the novel composite duct provided by this utility model has at least the following beneficial effects:

[0014] 1. A certain amount of liquid is forced into the interior of the U-shaped rubber block by the pressure inlet component, causing the U-shaped rubber block to expand. The side wall of the expanded U-shaped rubber block is then pressed tightly against the outer wall of the duct unit body, thereby sealing and fixing the duct unit body inserted into the end cap. This allows for quick splicing of two duct unit bodies and effectively improves the sealing performance during splicing and installation, preventing airflow leakage from the splice gap. It also eliminates the need for installing multiple screws to assemble the two duct unit bodies, effectively improving the assembly efficiency of the duct unit body.

[0015] 2. Hydraulic pressure is applied to the reinforcing component through the pressure inlet component, thereby further fixing one end of the duct unit body inserted into the end cap through the reinforcing component, further improving the stability of the assembly between the two duct unit bodies. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a cross-sectional view of the pressure inlet assembly of this utility model;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the internal structure of the end cap of this utility model;

[0021] Figure 6This is a partial structural diagram of the reinforcement component of this utility model.

[0022] In the picture:

[0023] 1. Pressure inlet assembly; 101. Piston plate; 102. Threaded rod; 103. End plate; 104. Liquid cylinder; 105. Nut sleeve; 2. Reinforcing assembly; 201. Slot; 202. Insert post; 203. Rubber sheet; 204. Arc end; 3. End seat; 4. Duct unit body; 5. U-shaped rubber block; 6. Cavity; 7. Infusion tank. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figure 1-6 This utility model provides a novel composite air duct, including an air duct unit body 4. An end cap 3, which is fitted to the other end of the air duct unit body 4, is fixed to one end. A U-shaped rubber block 5 is attached to the inner wall of the end cap 3. A cavity 6 is formed inside the U-shaped rubber block 5. An infusion tank 7, communicating with the cavity 6, is formed inside the end cap 3. A pressure inlet assembly 1, communicating with the end of the infusion tank 7 away from the cavity 6, is provided on the end cap 3. A reinforcement assembly 2, which fixes one end of the air duct unit body 4 inserted into the end cap 3, is provided inside the end cap 3. During assembly, one end of the air duct unit body 4 is inserted into the end cap 3, and a certain amount of liquid is forced into the U-shaped rubber block 5 by the pressure inlet assembly 1. This causes the U-shaped rubber block 5 to expand, allowing its sidewall to press tightly against the outer sidewall of the duct unit body 4. This seals and fixes the duct unit body 4 inserted into the end cap 3, enabling rapid splicing of the two duct unit bodies 4. It also effectively improves the sealing performance during splicing, preventing airflow leakage from the joint and eliminating the need for multiple screws, thus improving the assembly efficiency. Hydraulic pressure is applied to the reinforcing component 2 via the pressure inlet component 1, further securing one end of the duct unit body 4 inserted into the end cap 3 and enhancing the stability of the splicing between the two duct unit bodies 4.

[0026] Further as Figure 1 , Figure 4 and Figure 5As shown, it is worth noting that the pressurization assembly 1 includes a liquid cylinder 104 fixed to the side wall of the end seat 3. The end of the infusion tank 7 away from the cavity 6 is connected to the inside of the liquid cylinder 104. A nut sleeve 105 is fixed inside the end of the liquid cylinder 104 away from the end seat 3. A threaded rod 102 is threadedly connected to the nut sleeve 105. A piston plate 101 that fits tightly against the inner side wall of the liquid cylinder 104 is fixed to one end of the threaded rod 102. The liquid cylinder 104 is filled with liquid. During assembly, the end of a duct unit body 4 is inserted into the end seat 3. By screwing down the threaded rod 102, the piston plate 101 is driven to move within the liquid cylinder 104. The piston plate 101 moves inward and downward, thereby transporting the liquid inside the liquid cylinder 104 through the infusion tank 7 to the inside of the U-shaped rubber block 5. This causes the U-shaped rubber block 5 to expand as a whole, so that the side wall of the expanded U-shaped rubber block 5 is tightly attached to the outer side wall of the duct unit body 4, thereby sealing and fixing the duct unit body 4 inserted into the end seat 3. This allows for quick splicing of the two duct unit bodies 4, effectively improving the sealing performance during splicing and installation, preventing airflow from leaking out from the splicing gap, and eliminating the need to install multiple screws to assemble the two duct unit bodies 4, thus effectively improving the assembly efficiency of the duct unit body 4.

[0027] Further as Figure 3 , Figure 4 and Figure 6 As shown, it is worth noting that the reinforcing component 2 includes a rubber sheet 203 sealed and fixed at the bottom of the liquid cylinder 104. A post 202 is fixed on the side of the rubber sheet 203. A slot 201 that fits into the post 202 is provided on the outer wall of the duct unit body 4. When one end of the duct unit body 4 is inserted into the end seat 3, the slot 201 and the post 202 are aligned. When the threaded rod 102 moves the liquid cylinder 104 downward, the liquid cylinder 104 has hydraulic pressure. This hydraulic pressure causes the rubber sheet 203 to deform elastically, so that the post 202 on the rubber sheet 203 is inserted into the slot 201. This further assists in fixing one end of the duct unit body 4 inserted into the end seat 3, and further improves the stability of the assembly between the two duct unit bodies 4.

[0028] Further as Figure 6 As shown, it is worth noting that the end of the insertion post 202 away from the rubber sheet 203 is provided with an arc-shaped end 204; in actual operation, the arc-shaped end 204 makes it easier for the insertion post 202 to be inserted into the slot 201.

[0029] This solution has the following working process: During assembly, one end of a duct unit body 4 is inserted into the end seat 3. By turning down the threaded rod 102, the piston plate 101 moves down inside the liquid cylinder 104. The piston plate 101 then transports the liquid inside the liquid cylinder 104 through the infusion tank 7 to the inside of the U-shaped rubber block 5, causing the U-shaped rubber block 5 to expand. The side wall of the expanded U-shaped rubber block 5 is then pressed tightly against the outer side wall of the duct unit body 4, thus sealing and fixing the duct unit body 4 inserted into the end seat 3. The two duct unit bodies 4 are then quickly spliced ​​together. When there is hydraulic pressure inside the liquid cylinder 104, the rubber sheet 203 is elastically deformed by the hydraulic pressure, causing the insertion post 202 on the rubber sheet 203 to engage with the slot 201, thereby further fixing one end of the duct unit body 4 inserted into the end seat 3.

[0030] Further as Figure 4 As shown, it is worth noting that an end plate 103 is fixed on the end of the threaded rod 102 away from the piston plate 101, and a rubber sleeve is fitted on the surface of the end plate 103; in actual operation, the threaded rod 102 can be easily rotated through the end plate 103, which facilitates operation.

[0031] Further as Figure 5 As shown, it is worth noting that the U-shaped rubber block 5 is located at the port of the end seat 3.

[0032] In summary: One end of a duct unit body 4 is inserted into the end cap 3. A certain amount of liquid is forced into the U-shaped rubber block 5 by the pressure inlet component 1, causing the U-shaped rubber block 5 to expand. The sidewall of the expanded U-shaped rubber block 5 then adheres tightly to the outer wall of the duct unit body 4, sealing and fixing the duct unit body 4 inserted into the end cap 3. This allows for rapid splicing of two duct unit bodies 4, effectively improving the sealing performance during installation and preventing air leakage from the joint. It also eliminates the need for multiple screws to assemble the two duct unit bodies 4, significantly improving assembly efficiency. Furthermore, hydraulic pressure is applied to the reinforcing component 2 by the pressure inlet component 1, further securing one end of the duct unit body 4 inserted into the end cap 3, further enhancing the stability of the assembly between the two duct unit bodies 4.

Claims

1. A novel composite duct, comprising a duct unit body (4), characterized in that, The end of the duct unit body (4) is fixed with an end cap (3) that fits into the other end of the duct unit body (4). A U-shaped rubber block (5) is attached to the inner wall of the end cap (3). A cavity (6) is opened inside the U-shaped rubber block (5). An infusion tank (7) communicating with the cavity (6) is opened inside the end cap (3). A pressure inlet assembly (1) is provided on the end cap (3) and communicates with the end of the infusion tank (7) away from the cavity (6). A reinforcement assembly (2) is provided inside the end cap (3) to fix one end of the duct unit body (4) inserted into the end cap (3).

2. The novel composite air duct according to claim 1, characterized in that, The pressure inlet assembly (1) includes a liquid cylinder (104) fixed on the side wall of the end seat (3). The end of the infusion tank (7) away from the cavity (6) is connected to the inside of the liquid cylinder (104). A nut sleeve (105) is fixed inside the end of the liquid cylinder (104) away from the end seat (3). A threaded rod (102) is threaded inside the nut sleeve (105). A piston plate (101) is fixed at one end of the threaded rod (102) and fits tightly against the inner side wall of the liquid cylinder (104).

3. The novel composite air duct according to claim 2, characterized in that, The reinforcement component (2) includes a rubber sheet (203) that is sealed and fixed at the bottom of the liquid cylinder (104). A plug (202) is fixed on the side of the rubber sheet (203). A slot (201) that fits the plug (202) is provided on the outer side wall of the air duct unit body (4).

4. A novel composite air duct according to claim 3, characterized in that, The insertion post (202) has an arc-shaped end (204) at the end away from the rubber sheet (203).

5. A novel composite air duct according to claim 2, characterized in that, An end plate (103) is fixed to one end of the threaded rod (102) away from the piston plate (101), and a rubber sleeve is fitted onto the surface of the end plate (103).

6. A novel composite air duct according to claim 1, characterized in that, The spiral rubber block (5) is located at the port of the end seat (3).

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