Floor air supply duct
By designing the structure of the ground air supply duct and filling it with insulation material, the problem of traditional ground air supply ducts being difficult to adapt to condensation and insulation functions has been solved, achieving efficient vertical delivery of cold or warm air and insulation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU JUYANG AIR CONDITIONING TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional floor-mounted air ducts are difficult to adapt to fresh air units with condensation and insulation functions, and the installation of air ducts within the floor tends to increase the thickness of the ductwork.
Design an underground air supply duct, including an underground air supply box, a connector, an air outlet, and a straight pipe. The outer wall has a hollow cavity filled with insulation material and is connected to the underground air supply box through the straight pipe. The air outlet plate and a direct connector are used to improve the sealing performance. The underground air supply box adopts a mountain-shaped and inclined structure to improve the airflow effect.
It achieves efficient vertical delivery of cold or warm air, reduces the loss of cold or warm air, and improves the insulation effect of the floor air duct.
Smart Images

Figure CN224215527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan pipeline technology, specifically a ground-level air supply duct. Background Technology
[0002] Traditional floor-mounted air ducts are difficult to adapt to the needs of fresh air systems with condensation and insulation functions. This is because the ducts are installed inside the floor, and although external insulation materials can be used to improve the insulation performance of the ducts, this method easily increases the thickness of the insulation layer. To solve the above problems, the inventors researched and proposed this solution. Utility Model Content
[0003] This invention provides a ground-level air supply duct that overcomes the shortcomings described in the background art.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] An underground air supply duct includes an underground air supply box, a connector, an air outlet, and a straight pipe. The outer wall of the underground air supply box has a first hollow cavity, the side end of the underground air supply box has a connector, the top end of the underground air supply box has an air outlet, and the outer wall of the straight pipe has a second hollow cavity. The first hollow cavity and the second hollow cavity are filled with thermal insulation material.
[0006] In some embodiments, an air outlet plate is nested on the air outlet.
[0007] In some embodiments, the air outlet plate has a plurality of air outlet holes.
[0008] In some implementations, the straight pipe is connected to the connector via a direct connector.
[0009] In some embodiments, the direct head includes a direct frame and extension joints, with extension joints provided on both sides of the direct frame.
[0010] In some embodiments, a baffle is provided inside the extension joint.
[0011] In some embodiments, the ground-mounted air supply box has a mountain-shaped structure.
[0012] In some embodiments, the middle part of the ground air supply box has an inclined structure.
[0013] In some embodiments, the insulation material is polyurethane.
[0014] In some embodiments, the thermal insulation material is sprayed with a solvent.
[0015] By adopting the above technical solution, the beneficial effects of this utility model are:
[0016] The ground-level air supply duct of this invention connects to the ground-level air supply box via a straight pipe, efficiently converting the cold or warm air in the air ducts laid on the ground into air that is delivered vertically to the ground. The straight pipe and the ground-level air supply box are efficiently matched and connected via a direct connector. An air outlet plate with air outlet holes is installed on the ground-level air supply box to customize the air outlet area. Insulation materials are used to improve the insulation effect of the ground-level air supply box and the straight pipe, reducing the loss of cold or warm air. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 A schematic diagram of the structure of the ground-level air supply box;
[0020] Figure 3 This is a schematic diagram of the direct head structure;
[0021] Figure 4 A cross-sectional view of the ground-level air supply box;
[0022] Figure 5 This is a cross-sectional view of a straight pipe.
[0023] Explanation of key figure labels:
[0024] 1. Ground air supply box; 11. First hollow cavity; 12. Inclined structure; 2. Connection port; 3. Air outlet; 4. Straight pipe; 41. Second hollow cavity; 42. Guide cavity; 5. Thermal insulation material; 6. Air outlet plate; 61. Air outlet hole; 7. Direct connector; 71. Direct frame; 72. Extension connector; 73. Guide plate. Detailed Implementation
[0025] like Figures 1-5 As shown, this utility model provides a ground air supply duct, including a ground air supply box 1, a connecting port 2, an air outlet 3, and a straight pipe 4. The outer wall of the ground air supply box 1 has a first hollow cavity 11. The connecting port 2 is provided at the side end of the ground air supply box 1, and the air outlet 3 is provided at the top end of the ground air supply box 1. The outer wall of the straight pipe 4 has a second hollow cavity 41. The first hollow cavity 11 and the second hollow cavity 41 are filled with heat insulation material 5. The inner side of the second hollow cavity 41 has a guide cavity 42, wherein the outer surface is the outer side, and the inward side is the inner side mentioned here.
[0026] The floor-mounted air duct delivers cool or warm air from the ductwork laid on the ground in a direction perpendicular to the ground. Filling the interior of the floor-mounted air duct box 1 and the straight pipe 4 with insulation material 5 helps to improve the insulation effect of the floor-mounted air duct.
[0027] According to some embodiments of this utility model, optionally, an air outlet plate 6 is nested on the air outlet 3.
[0028] According to some embodiments of this utility model, optionally, the air outlet plate 6 has a plurality of air outlet holes 61, and the state of the air outlet holes 61 can be set according to requirements, such as striped shape, round hole shape, etc.
[0029] According to some embodiments of this utility model, optionally, the straight pipe 4 is matched and connected to the connection port 2 through the direct head 7 to improve the sealing effect at the connection.
[0030] According to some embodiments of the present invention, the direct head 7 may optionally include a direct frame 71 and an extension joint 72. The extension joints 72 are provided on both sides of the direct frame 71. One of the two extension joints 72 extends into the interior of the ground air supply box 1, and the other extends into the interior of the straight pipe 4, thereby improving the sealing of the connection and indirectly improving the heat preservation effect of the cold or hot air.
[0031] According to some embodiments of this utility model, optionally, a guide plate 73 is provided inside the extension joint 72 to facilitate the direction of cold or warm air.
[0032] According to some embodiments of this utility model, optionally, the ground air supply box 1 has a mountain-shaped structure.
[0033] According to some embodiments of the present invention, optionally, the middle part of the ground air supply box 1 is an inclined structure 12, which facilitates the improvement of the airflow effect of cold or warm air in the ground air supply box 1.
[0034] According to some embodiments of this utility model, the thermal insulation material 5 may optionally be polyurethane.
[0035] According to some embodiments of this utility model, optionally, the thermal insulation material 5 is sprayed with sol.
[0036] Example 1
[0037] like Figures 1-5 As shown, this embodiment provides a ground air supply duct, including a ground air supply box 1, a connection port 2, an air outlet 3, and a straight pipe 4. The outer wall of the ground air supply box 1 has a first hollow cavity 11. The connection port 2 is provided at the side end of the ground air supply box 1, and the air outlet 3 is provided at the top end of the ground air supply box 1. The outer wall of the straight pipe 4 has a second hollow cavity 41. The first hollow cavity 11 and the second hollow cavity 41 are filled with thermal insulation material 5.
[0038] An air outlet 6 is nested on the air outlet 3, and the air outlet 6 has several air outlet holes 61. The straight pipe 4 is matched and connected to the connection port 2 through the direct connector 7 to improve the sealing effect at the connection. The direct connector 7 includes a direct frame 71 and an extension connector 72. The two extension connectors 72 are provided on both sides of the direct frame 71. One of the two extension connectors 72 extends into the interior of the ground air supply box 1, and the other extends into the interior of the straight pipe 4, improving the sealing of the connection and indirectly improving the heat preservation effect of the cold or hot air. A guide plate 73 is provided inside the extension connector 72 to facilitate the guidance of the cold or hot air.
[0039] The ground air supply box 1 has a mountain-shaped structure, and the middle part of the ground air supply box 1 is an inclined structure 12, which facilitates the flow of cold or warm air inside the ground air supply box 1. The insulation material 5 is polyurethane.
[0040] Example 2
[0041] This embodiment provides an underground air supply duct. The difference between this embodiment and Embodiment 1 is that the insulation material 5 is selected as a sprayed solvent.
[0042] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.
Claims
1. A ground-level air supply duct, characterized in that, The device includes a ground-mounted air supply box, a connecting port, an air outlet, and a straight pipe. The outer wall of the ground-mounted air supply box has a first hollow cavity, the side end of the ground-mounted air supply box has a connecting port, the top end of the ground-mounted air supply box has an air outlet, and the outer wall of the straight pipe has a second hollow cavity. The first hollow cavity and the second hollow cavity are filled with thermal insulation material.
2. The ground-level air supply duct according to claim 1, characterized in that, An air outlet plate is nested on the air outlet.
3. The ground-level air supply duct according to claim 2, characterized in that, The air outlet plate has several air outlet holes.
4. The ground-level air supply duct according to claim 1, characterized in that, The straight pipe is connected to the connector via a direct connector.
5. The ground-level air supply duct according to claim 4, characterized in that, The direct head includes a direct frame and extension connectors, with extension connectors provided on both sides of the direct frame.
6. The ground-level air supply duct according to claim 5, characterized in that, The extension joint is equipped with a flow guide plate.
7. The ground-level air supply duct according to claim 1, characterized in that, The ground-mounted air supply box has a mountain-shaped structure.
8. The ground-level air supply duct according to claim 1, characterized in that, The middle part of the ground-level air supply box has an inclined structure.
9. The ground-level air supply duct according to claim 1, characterized in that, The insulation material is polyurethane.
10. The ground-level air supply duct according to claim 1, characterized in that, The thermal insulation material is sprayed with solvent.