Detachable connecting air duct

Abstract

The utility model belongs to the technical field of electrical equipment with an exhaust channel. In order to solve the problem that in the prior art, an exhaust channel in an equipment host cannot be compatible with hosts of different sizes and models, the detachable connecting air duct is provided, and the connecting air duct is arranged on a host bottom plate and detachably connected with a main air duct. The connecting air duct comprises a top plate; side wall plates are arranged on the left and right sides of the top plate; an upper positioning buckle is arranged on the top plate connected with one end of the air inlet of the air duct, an upper positioning rib is arranged on the top plate of the main air duct connected with the upper positioning buckle, and the upper positioning buckle and the upper positioning rib can be matched and clamped; a side positioning buckle is arranged on the side wall plate connected with one end of the air inlet of the air duct, a side positioning rib is arranged on the side wall plate of the main air duct connected with the side positioning buckle, and the side positioning buckle and the side positioning rib can be clamped in a matched mode. The size of the air exhaust channel in the equipment host is changed through the detachable connecting air channel, so that the air exhaust channel can adapt to hosts with different sizes, and the repeated research and development cost is greatly saved.

Description

Technical Field

[0001] This invention belongs to the technical field of electrical equipment with exhaust systems, and specifically relates to a detachable connecting air duct. Background Technology

[0002] Many indoor electrical appliances on the market, such as bathroom heaters, cooling heaters, range hoods, and ceiling-mounted air conditioners, have exhaust systems. These systems typically include an exhaust duct within the main unit, which connects to an exhaust hood. The exhaust hood is then connected to external ventilation ducts such as aluminum foil pipes to expel the air passing through the main unit. Currently, the exhaust duct within the main unit is a non-separable, one-piece structure. This one-piece structure cannot accommodate main units of different sizes and models, requiring the development and molding of new exhaust ducts for each unit, resulting in high R&D costs and further impacting equipment price and market competitiveness. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the problem that the exhaust channel inside the main unit of the equipment is not detachable, which leads to incompatibility with main units of different sizes and models. The present invention provides a detachable connecting air duct that can change the length of the exhaust channel inside the main unit of the equipment.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a detachable connecting air duct, including a main unit base plate and a main air duct set on the main unit base plate, and a connecting air duct, the connecting air duct being set on the main unit base plate and detachably connected to the main air duct; the connecting air duct includes a top plate, and side wall plates are set on the left and right sides of the top plate; one end of the connecting air duct is an air inlet and connected to the main air duct, and the other end of the connecting air duct is an air outlet; an upper positioning buckle is set on the top plate at the air inlet end of the connecting air duct, and an upper positioning rib is set on the top plate of the main air duct connected thereto, the upper positioning buckle and the upper positioning rib can be matched and snapped together; a side positioning buckle is set on the side wall plate at the air inlet end of the connecting air duct, and a side positioning rib is set on the side wall plate of the main air duct connected thereto, the side positioning buckle and the side positioning rib can be matched and snapped together.

[0005] Preferably, the bottom surface of the connecting air duct sidewall panel is provided with a bottom skirt rib, and the main unit base plate connected thereto is provided with a lower buckle, and the bottom skirt rib and the lower buckle can be matched and engaged.

[0006] Preferably, the bottom surface of the connecting air duct sidewall panel is provided with fixing screw holes, and the main unit base plate connected thereto is provided with main unit screw posts, and the fixing screw holes and the main unit screw posts can be matched and connected for fixation.

[0007] Preferably, the fixing screw hole is protruding from the bottom surface of the connecting air duct side wall panel.

[0008] Preferably, an air outlet enclosure is provided at the air outlet of the connecting air duct, and the air outlet enclosure is connected to the side wall panels on the left and right sides.

[0009] Preferably, the size of the air inlet of the connecting air duct is larger than the air outlet.

[0010] Preferably, the upper positioning buckle is disposed on the outer edge of the top plate and extends outward, and the upper positioning rib extends outward along the top plate of the main air duct.

[0011] Preferably, the outwardly extending portion of the upper positioning buckle includes a fixed connecting portion extending along the direction of the connecting air duct top plate, a receiving portion extending vertically downward from the fixed connecting portion, and a hooking portion connected to the receiving portion and extending vertically from the receiving portion toward the connecting air duct top plate. The top end of the outwardly extending portion of the upper positioning rib along the top plate of the main air duct is provided with an outer edge protrusion or a hooking engagement portion perpendicular to the outwardly extending portion. The outer edge protrusion or the hooking engagement portion can slide within the hooking portion.

[0012] Preferably, the side positioning buckle is disposed on the outer edge of the side wall panel and extends outward, and the side positioning rib extends outward along the side wall panel of the main air duct.

[0013] Preferably, the outwardly extending portion of the side positioning buckle includes a fixed connecting portion extending along the side wall panel, a receiving portion extending perpendicularly to the fixed connecting portion, and a hooking portion connected to the receiving portion and extending perpendicularly along the receiving portion toward the side wall panel. The top end of the outwardly extending portion of the side positioning rib along the outer edge of the side wall panel is provided with an outer edge protrusion or a hooking engagement portion perpendicular to the outwardly extending portion along the outer edge of the side wall panel. The outer edge protrusion or the hooking engagement portion can slide within the hooking portion.

[0014] Compared with existing technologies, the beneficial effects of this invention are: it transforms the exhaust duct inside the main unit of the equipment from an inseparable, integrated structure into a partially detachable duct, thereby changing the size of the exhaust duct inside the main unit. This allows the exhaust duct to adapt to main units of different sizes. This invention significantly reduces the research and development costs of repeatedly developing exhaust ducts of different sizes, and also eliminates the cost of mold making, thus reducing the manufacturing cost of the equipment and improving its market competitiveness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the connecting air duct of this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure after the central connecting air duct has been flipped;

[0017] Figure 3A structural diagram of the main unit for installing the equipment connected to the air duct;

[0018] Figure 4 This is a schematic diagram of the structure of the connecting air duct of this utility model installed on the main unit of the equipment;

[0019] Figure 5 for Figure 4 A magnified structural diagram of part A in the middle.

[0020] The diagram is marked as follows:

[0021] 1. Connecting air duct; 11. Top plate; 12. Side wall panel; 13. Air inlet; 14. Air outlet; 15. Upper positioning buckle; 16. Side positioning buckle; 17. Bottom skirt rib; 18. Fixing screw hole; 19. Air outlet enclosure; 2. Main air duct; 21. Upper positioning rib; 22. Side positioning rib; 3. Main unit base plate; 31. Lower buckle; 32. Screw post. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] like Figure 1 — Figure 5 As shown, a detachable connecting air duct includes a main unit base plate 3, on which a main air duct 2 is fixedly mounted. A connecting air duct 1 can also be fixed to the main unit base plate 3, and the connecting air duct 1 and the main air duct 2 are detachably connected. The connecting air duct 1 includes a top plate 11, with side wall panels 12 arranged downwards on the left and right sides of the top plate 11, forming a channel. One end of the connecting air duct 1 is an air inlet 13, and the other end is an air outlet 14. The air inlet 13 is larger than the air outlet 14, and one end of the air inlet 13 of the connecting air duct 1 is connected to the air outlet of the main air duct 2. Two upper positioning buckles 15 are provided on the top plate 11 at the air inlet 13 end of the connecting air duct 1, and upper positioning ribs 21 are provided on the top plate of the main air duct 2 connected thereto. The upper positioning buckles 15 and upper positioning ribs 21 are matched and engaged. Side positioning buckles 16 are respectively installed on the left and right side wall panels 12 at one end of the air inlet 13 of the connecting air duct 1, and side positioning ribs 22 are respectively installed on the left and right side wall panels of the main air duct 2 connected thereto. The side positioning buckles 16 and the side positioning ribs 22 are matched and snapped together.

[0024] Bottom skirt ribs 17 are respectively provided on the bottom edge of the two side wall panels 12 of the connecting air duct 1. Two lower buckles 31 are provided on the main unit base plate 3 connected to them. The bottom skirt ribs 17 are inserted into the lower buckles 31 and matched and engaged.

[0025] Two fixing screw holes 18 are provided on the bottom surface of the left and right side wall panels 12 near the air outlet 14 of the connecting air duct 1, protruding outward. Two main unit screw posts 32 are fixedly installed on the main unit base plate 3 connected to them, and the fixing screw holes 18 and the main unit screw posts 32 are matched and fixed. At the air outlet 14 of the connecting air duct 1, an air outlet enclosure 19 is fixedly connected between the left and right side wall panels 12.

[0026] The upper positioning buckle 15 is disposed on the outer edge of the top plate 11 and extends outward, and the upper positioning rib 21 extends outward along the top plate of the main air duct 2. The outwardly extending portion of the upper positioning buckle 15 includes a fixed connecting portion extending along the extension direction of the top plate 11 of the connecting air duct 1, a receiving portion extending perpendicularly downward from the fixed connecting portion, and a hooking portion connected to the receiving portion and extending perpendicularly from the receiving portion toward the top plate 11 of the connecting air duct 1. The top end of the outwardly extending portion of the upper positioning rib 21 along the top plate of the main air duct 2 is provided with an outer edge protrusion or a hooking engagement portion perpendicular to the outwardly extending portion, and the outer edge protrusion or the hooking engagement portion can slide within the hooking portion.

[0027] The side positioning buckle 16 is disposed on the outer edge of the side wall panel 12 and extends outward, and the side positioning rib 22 extends outward along the side wall panel of the main air duct 2. The outwardly extending portion of the side positioning buckle 16 includes a fixed connecting portion extending along the extension direction of the side wall panel 12, a receiving portion extending perpendicularly to the fixed connecting portion, and a hooking portion connected to the receiving portion and extending perpendicularly along the receiving portion towards the side wall panel. The top end of the outwardly extending portion of the side positioning rib 22 along the outer edge of the side wall panel of the main air duct 2 is provided with an outer edge protrusion or a hooking engagement portion perpendicular to the outwardly extending portion along the outer edge of the side wall panel. The outer edge protrusion or the hooking engagement portion can slide within the hooking portion.

[0028] Specifically, when connecting the connecting duct 1 to the main air duct 2 of the main unit to extend the exhaust channel of the main unit, the connecting duct 1 is fastened to the base plate 3 of the main unit with its opening facing downwards. First, with the opening of the connecting duct 1 facing downwards and the air inlet 13 close to the air outlet of the main air duct 2, it is fastened from top to bottom. During the fastening process, the side positioning buckles 16 on the left and right side wall panels 12 of the connecting duct 1 slide downwards along the side positioning ribs 22 on the left and right side wall panels of the main air duct 2, so that the left and right side wall panels 12 of the connecting duct 1 are connected to the left and right side wall panels of the main air duct 2. The side positioning buckles 16 and the side positioning ribs 22 cooperate to play a guiding and positioning role; then the top plate 11 of the connecting duct 1... The upper positioning buckle 15 is snapped onto the upper positioning rib 21 on the top plate of the main air duct 2. The upper positioning buckle 15 and the upper positioning rib 21 cooperate to connect the top plate 11 of the connecting air duct 1 to the top plate of the main air duct 2. At the same time, the bottom skirt ribs 17 on the left and right side wall panels 12 are inserted into the two lower buckles 31 on the main unit base plate 3, so that the left and right side wall panels 12 of the connecting air duct 1 are fixed to the main unit base plate 3. Finally, the fixing screw holes 18 on the connecting air duct 1 are inserted into the screw posts 32 on the main unit base plate 3 for fixing. At this point, the air duct formed by the top plate 11, the side wall panels 12 and the main unit base plate 3 of the connecting air duct 1 is detachably connected to the main air duct 2.

[0029] When disassembling the connecting air duct 1, loosen the screw post 32 in the fixing screw hole 18, and then lift the connecting air duct 1 upwards. This will make it easy to detach the connecting air duct 1 from the main air duct 2 and the main unit base plate 3.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its scope of protection shall still fall within the protection scope of this utility model.

Claims

1. A detachable connecting air duct, comprising a main unit base plate and a main air duct disposed on the main unit base plate, characterized in that: It also includes a connecting air duct, which is installed on the base plate of the main unit and detachably connected to the main air duct; the connecting air duct includes a top plate, and side wall plates are provided on the left and right sides of the top plate; one end of the connecting air duct is an air inlet and connected to the main air duct, and the other end of the connecting air duct is an air outlet; an upper positioning buckle is provided on the top plate at the air inlet end of the connecting air duct, and an upper positioning rib is provided on the top plate of the main air duct connected thereto, and the upper positioning buckle and the upper positioning rib can be matched and snapped together; a side positioning buckle is provided on the side wall plate at the air inlet end of the connecting air duct, and a side positioning rib is provided on the side wall plate of the main air duct connected thereto, and the side positioning buckle and the side positioning rib can be matched and snapped together.

2. The detachable connecting air duct according to claim 1, characterized in that: The bottom surface of the connecting air duct side wall panel is provided with a bottom skirt rib, and the main unit base plate connected to it is provided with a lower buckle. The bottom skirt rib and the lower buckle can be matched and snapped together.

3. The detachable connecting air duct according to claim 1, characterized in that: The bottom surface of the connecting air duct side wall plate is provided with fixing screw holes, and the main unit base plate connected thereto is provided with main unit screw posts. The fixing screw holes and the main unit screw posts can be matched and connected for fixation.

4. The detachable connecting air duct according to claim 3, characterized in that: The fixing screw holes are protruding from the bottom surface of the connecting air duct side wall panel.

5. The detachable connecting air duct according to claim 1, characterized in that: An air outlet enclosure is installed at the air outlet of the connecting air duct, and the air outlet enclosure is connected to the side wall panels on the left and right sides.

6. The detachable connecting air duct according to claim 1, characterized in that: The size of the air inlet of the connecting air duct is larger than that of the air outlet.

7. The detachable connecting air duct according to claim 1, characterized in that: The upper positioning buckle is located on the outer edge of the top plate and extends outward, while the upper positioning rib extends outward along the top plate of the main air duct.

8. The detachable connecting air duct according to claim 7, characterized in that: The outwardly extending portion of the upper positioning buckle includes a fixed connecting portion extending along the direction of the connecting air duct top plate, a receiving portion extending vertically downward from the fixed connecting portion, and a hooking portion connected to the receiving portion and extending vertically from the receiving portion toward the connecting air duct top plate. The top end of the outwardly extending portion of the upper positioning rib along the top plate of the main air duct is provided with an outer edge protrusion or a hooking engagement portion perpendicular to the outwardly extending portion. The outer edge protrusion or the hooking engagement portion can slide within the hooking portion.

9. The detachable connecting air duct according to claim 1, characterized in that: The side positioning buckle is provided on the outer edge of the side wall panel and extends outward, and the side positioning rib extends outward along the side wall panel of the main air duct.

10. The detachable connecting air duct according to claim 9, characterized in that: The outwardly extending portion of the side positioning buckle includes a fixed connecting portion extending along the side wall plate, a receiving portion extending perpendicularly to the fixed connecting portion, and a hooking portion connected to the receiving portion and extending perpendicularly along the receiving portion toward the side wall plate. The top end of the outwardly extending portion of the side positioning rib along the outer edge of the side wall plate is provided with an outer edge protrusion or a hooking engagement portion perpendicular to the outwardly extending portion along the outer edge of the side wall plate. The outer edge protrusion or the hooking engagement portion can slide within the hooking portion.

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