Range hood air duct structure convenient to maintain

Abstract

The range hood air duct structure convenient to maintain comprises an air duct shell, one side of the air duct shell is of an opening structure, and the opening structure can expose the internal structure of an air duct; the air duct shell comprises a motor maintenance cover plate, the motor maintenance cover plate correspondingly covers the opening structure, and the motor maintenance cover plate is detachably connected with the air duct shell; the air duct shell comprises an air duct outer cover, the air duct outer cover surrounds the outer side face of the air duct shell, the air duct outer cover is detachably connected with the air duct shell, and when internal structures such as a fan assembly in the air duct break down, the air duct outer cover can be detached from the air duct shell, then the motor maintenance cover plate on one side of the air duct shell is detached, and the opening structure is opened. And the opening structure can expose the internal structure of the air duct, so that the effect that the structure in the air duct can be conveniently maintained without detaching the whole air duct structure from the wall can be achieved.

Description

Technical Field

[0001] The utility model relates to a range hood fan structure which is easy to maintain. Background Art

[0002] The air duct is an important part of the range hood, which is used to suck in the fumes and discharge them outdoors to ensure fresh air in the kitchen.

[0003] Most of the existing air ducts are generally an integral channel structure as described in the patent document of Chinese Patent Publication No. CN202902393U, which has good structural stability.

[0004] However, if the internal structure of the fan assembly or other internal structures of this type of air duct with an integral channel structure fails, the air duct needs to be removed from the wall for maintenance, which is very inconvenient. Utility Model Content

[0005] The utility model aims to provide a technical solution for a range hood fan structure that is easy to maintain in view of the deficiencies in the prior art, which can achieve the effect of being able to maintain the interior of the fan structure without removing the fan structure from the wall.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The range hood fan cylinder structure is easy to maintain, including

[0008] The air duct housing is used to protect the internal structure of the air duct;

[0009] One side of the air duct shell is an opening structure, and the opening structure can expose the internal structure of the air duct; the air duct shell includes a motor maintenance cover, which covers the opening structure accordingly, and the motor maintenance cover is detachably connected to the air duct shell; the air duct shell includes an air duct cover, which surrounds the outer side of the air duct shell, and the air duct cover is detachably connected to the air duct shell.

[0010] By adopting the above technical solution, when the internal structure such as the fan assembly in the air duct fails, the air duct outer cover can be removed from the air duct outer shell, and then the motor maintenance cover on one side of the air duct outer shell can be removed to open the opening structure. The opening structure will expose the internal structure of the air duct, so that the structure inside the air duct can be conveniently repaired without removing the entire air duct structure from the wall.

[0011] Furthermore, the two sides of the air duct shell are wall panels, and the first screw holes are opened at the positions of the wall panels on both sides away from the opening structure. First mounting holes are opened at the positions corresponding to the first screw holes on both sides of the air duct cover. After the first mounting holes correspond to the first screw holes, the air duct cover and the air duct shell can be detachably connected by tightening the screws.

[0012] Furthermore, the opening structure is recessed on one side of the air duct casing, and longitudinal convex strips are formed on both sides of the opening structure, and a number of slots are formed through the surface of the longitudinal convex strips; a number of hooks corresponding to the slots are formed on both sides of the motor maintenance cover, and the motor maintenance cover can be detachably connected to the air duct casing through the cooperation of the slots and the hooks.

[0013] Furthermore, a second screw hole is provided in the air duct shell corresponding to the position above the opening structure; the air duct shell includes a base plate, and a third screw hole is provided on one side of the base plate corresponding to the recessed opening structure; a mounting plate is connected to the bottom of the motor maintenance cover, the mounting plate is perpendicular to the motor maintenance cover, a third mounting hole corresponding to the third screw hole is provided on the surface of the mounting plate, and a second mounting hole is provided on the surface of the motor maintenance cover corresponding to the second screw hole; the second mounting hole and the second screw hole are tightened by screws, and the third mounting hole and the third screw hole are tightened by screws, thereby realizing a detachable connection between the motor maintenance cover and the air duct shell.

[0014] Furthermore, the air duct housing includes a fan assembly, and the fan assembly is detachably installed in the air duct housing.

[0015] Furthermore, the fan assembly includes a motor with a mounting base formed on the side, and the motor is detachably connected to the fan housing via the mounting base.

[0016] Furthermore, the fan assembly includes a wind wheel, which is mounted on the shaft of the motor, and the wind wheel rotates coaxially with the shaft of the motor.

[0017] Furthermore, a wind guide ring is connected to one side of the wind wheel, a fifth mounting hole is provided on the surface of the wind guide ring, and a fifth screw hole is opened at a position corresponding to the fifth mounting hole on one side of the wind wheel. The wind guide ring is detachably connected to one side of the wind wheel by passing a screw through the fifth mounting hole and tightening the screw with the fifth screw hole.

[0018] Furthermore, one side of the wind wheel includes a wind wheel cap, which is screwed together with one end of the shaft of the motor, and is used to axially limit the wind wheel on one side of the wind wheel.

[0019] Furthermore, the air duct shell includes a back plate, and the outer side of the back plate is connected with a hanging strip, which is used for hanging installation of the air duct structure.

[0020] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0021] 1. The utility model can realize the effect of conveniently repairing the structure inside the duct without removing the duct structure from the wall;

[0022] 2. The motor maintenance cover of the utility model can be quickly disassembled and connected through the corresponding cooperation between the card slot and the card hook;

[0023] 3. The wind wheel of the utility model is coaxially connected to the motor for rotation. The wind wheel is axially limited by a wind wheel cap. After the wind wheel cap is unscrewed, the wind wheel can be quickly separated from the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a structural schematic diagram of the back side of the wind tube structure of the utility model;

[0026] Figure 2 This is a structural schematic diagram of the utility model's wind tube structure from an oblique upper perspective;

[0027] Figure 3 It is a schematic diagram of the explosion structure of the wind tube structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the motor maintenance cover of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the air duct cover of the utility model;

[0030] Figure 6 This is a structural schematic diagram of the utility model air duct structure with the motor maintenance cover removed;

[0031] Figure 7 This is a schematic diagram of the front structure of the fan assembly of the utility model;

[0032] Figure 8 This is a schematic diagram of the back structure of the fan assembly of the utility model;

[0033] In the figure: 1-air duct housing; 11-wall panel; 12-back panel; 13-bottom panel; 14-opening structure; 2-air duct cover; 21-first screw hole; 22-first mounting hole;

[0034] 3-motor maintenance cover; 31-hook; 32-slot; 33-longitudinal convex strip; 34-second screw hole; 35-second mounting hole; 36-third screw hole; 37-mounting sheet; 38-third mounting hole;

[0035] 4-motor; 41-mounting base; 42-shaft; 43-motor mounting bracket; 44-bolt; 45-volute;

[0036] 5-wind wheel; 51-through hole; 52-air guide ring; 54-fifth mounting hole; 55-wind wheel cap;

[0037] 6-Hanging strips. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0041] Example 1

[0042] The air duct structure is an important component connected to one side of the range hood head and used to suck in and discharge the oil smoke outdoors;

[0043] The wind tube structure includes a wind tube shell 1, and the wind tube shell 1 is used to protect the internal structure such as the fan assembly inside the wind tube structure;

[0044] One side of the air duct housing 1 is an opening structure 14, such as Figure 3 , Figure 6 As shown;

[0045] The opening structure 14 can expose the internal structure of the wind tube for easy maintenance;

[0046] The air duct housing 1 includes a motor maintenance cover 3, and the motor maintenance cover 3 is correspondingly covered with the opening structure 14; Figure 4 The motor maintenance cover 3 is shown in the figure corresponding to the opening structure 14;

[0047] The two sides of the air duct housing 1 are wall panels 11, such as Figure 6 As shown;

[0048] The back side of the air duct housing 1 is a back plate 12. Figure 1 As shown;

[0049] The bottom of the air duct housing 1 is a bottom plate 13. Figure 3 As shown;

[0050] In this embodiment, the opening structure 14 is recessed in the air duct housing 1, and longitudinal ridges 33 are formed on both sides of the opening structure 14. Figure 3 , Figure 6 As shown;

[0051] The longitudinal ridges 33 on both sides are provided with slots 32. Figure 3 , Figure 6 As shown;

[0052] In this embodiment, four slots 32 are provided on the longitudinal ridge 33 on each side;

[0053] The motor maintenance cover 3 adapted to the opening structure 14 is formed with hooks 31 on both sides, and the number and shape of the hooks 31 are adapted to the slots 32;

[0054] In this embodiment, the hook 31 is a 7-shaped hook structure. Figure 4 As shown;

[0055] When the hooks 31 are inserted into the corresponding slots 32, the motor maintenance cover 3 moves downward so that the defective part of the hook 31 can be engaged with the longitudinal convex strip 33 at the lower edge of the slot 32, thereby achieving the motor maintenance cover 3 and the fan housing 1 being engaged and fixed;

[0056] The motor maintenance cover 3 and the wind tube housing 1 can be quickly connected by the cooperation of the hook 31 and the slot 32. After the quick connection, the motor maintenance cover 3 and the wind tube housing 1 are fixed to each other, which can provide convenience for subsequent further screw fixing.

[0057] In this embodiment, the air duct housing 1 is provided with a second screw hole 34 at a position corresponding to the position above the opening structure 14. Figure 3 , Figure 6 As shown;

[0058] A third screw hole 36 is formed on one side of the bottom plate 13 corresponding to the recessed opening structure 14. Figure 6 As shown;

[0059] The bottom of the motor maintenance cover 3 is connected to a mounting plate 37, and the mounting plate 37 is perpendicular to the motor maintenance cover 3. Figure 4 As shown;

[0060] The surface of the mounting plate 37 is provided with a third mounting hole 38 corresponding to the third screw hole 36. Figure 4 As shown;

[0061] A second mounting hole 35 is provided on the surface of the motor maintenance cover 3 at a position corresponding to the second screw hole 34. Figure 4 As shown;

[0062] The number and distribution positions of the second mounting holes 35 correspond to the second screw holes 34 on the wind tube housing 1;

[0063] The number and distribution positions of the third mounting holes 38 correspond to the third screw holes 36 on the bottom plate 13;

[0064] When the motor maintenance cover 3 is fastened by the hook 31 and the slot 32, that is, the defective part of the hook 31 is engaged with the longitudinal ridge 33 at the lower edge of the slot 32, the second mounting holes 35 and the second screw holes 34 corresponding to each other are in positional correspondence, and the third mounting holes 38 and the third screw holes 36 corresponding to each other are in positional correspondence;

[0065] After the second mounting hole 35 and the second screw hole 34 correspond to each other, the screw is passed through the second mounting hole 35 and tightened with the second screw hole 34; after the third mounting hole 38 and the third screw hole 36 correspond to each other, the screw is passed through the third mounting hole 38 and tightened with the third screw hole 36; thereby, the motor maintenance cover 3 and the wind duct housing 1 can be further fixed, and the connection stability of the motor maintenance cover 3 and the wind duct housing 1 is increased while ensuring that the motor maintenance cover 3 and the wind duct housing 1 are detachable from each other for easy maintenance.

[0066] The air duct housing 1 includes an air duct cover 2, which surrounds the outer side of the air duct housing 1. Figure 2 As shown;

[0067] The air duct cover 2 is detachably connected to the air duct housing 1;

[0068] In this embodiment, the wall panels 11 on both sides of the air duct housing 1 are provided with first screw holes 21 at positions away from the opening structure 14. Figure 3 As shown;

[0069] The air duct cover 2 is a U-shaped structure, and its two sides correspond to the wall panels 11 on both sides of the air duct housing 1;

[0070] First mounting holes 22 are provided on both sides of the air duct cover 2 at positions corresponding to the first screw holes 21. Figure 2 , Figure 5 As shown;

[0071] When the air duct cover 2 is fitted and surrounded by the air duct housing 1, the first screw hole 21 and the first mounting hole 22 are aligned with each other, and the air duct cover 2 and the air duct housing 1 are fixed by screws passing through the first mounting hole 22 and tightening with the first screw hole 21;

[0072] In actual use, the air duct cover 2 and the air cylinder housing 1 can be separated by simply unscrewing the screw in the first screw hole 21 .

[0073] The air duct housing 1 includes a fan assembly, and the fan assembly is detachably installed in the air duct housing 1;

[0074] The fan assembly includes a motor 4 and a wind wheel 5;

[0075] A volute 45 is installed inside the air duct housing 1. The volute 45 includes an air inlet and an air outlet. The air outlet corresponds to the air outlet structure at the top of the air duct housing 1.

[0076] The air inlet is connected to the fan assembly, the front of the volute 45 is open, and the back of the volute 45 is provided with a motor mounting bracket 43, such as Figure 7 , Figure 8 As shown;

[0077] A plurality of mounting bases 41 are formed on the peripheral side of the motor 4. Figure 3 As shown;

[0078] A fourth mounting hole is formed on the mounting base 41, and a fourth screw hole is formed on the motor mounting bracket 43 correspondingly;

[0079] The motor 4 can be fixed to the motor mounting bracket 43 by passing the bolt 44 through the fourth mounting hole and tightening it in cooperation with the fourth screw hole;

[0080] The motor 4 includes a shaft 42;

[0081] The wind wheel 5 is located in the volute 45, and the center of the wind wheel 5 is a through hole 51. Figure 3 As shown;

[0082] The shaft 42 can fit through the through hole 51 and be fixed to the wind wheel 5, so that the wind wheel 5 can rotate coaxially with the shaft 42;

[0083] In this embodiment, when the motor 4 is running, the wind wheel 5 will rotate clockwise along with the shaft 42 .

[0084] One side of the wind wheel 5 is connected to an air guide ring 52. Figure 3 As shown, the air guide ring 52 is connected to one side of the wind wheel 5 and can guide the airflow;

[0085] The surface of the air guide ring 52 is provided with a plurality of fifth mounting holes 54. Figure 3 As shown;

[0086] A corresponding fifth screw hole is opened in the wind wheel 5 at a position corresponding to the fifth mounting hole 54 , and the air guide ring 52 is detachably connected to one side of the wind wheel 5 by passing a screw through the fifth mounting hole 54 and tightening with the fifth screw hole.

[0087] One end of the shaft 42 passes through the surface of the air guide ring 52, and the end has a thread, and a wind wheel cap 55 can be tightened with the end in a counterclockwise manner;

[0088] After the wind wheel cap 55 is tightened with one end of the shaft 42, it will rotate clockwise with the wind wheel 5;

[0089] The wind wheel cap 55 is located on one side of the wind guide ring 52 and has the effect of axially limiting the wind wheel 5, thereby preventing the wind wheel 5 from axially moving.

[0090] A hanging bar 6 is connected to the back plate 12 of the air duct housing 1 , and the air duct structure can be hung and fixed to the wall through the hanging bar 6 .

[0091] Example 2

[0092] This embodiment is different from the embodiment 1 in that, in this embodiment, three slots 32 are provided on the longitudinal convex strips 33;

[0093] Hooks 31 are formed on both sides of the motor maintenance cover 3 adapted to the opening structure 14 , and the number and shape of the hooks 31 are adapted to the slots 32 .

[0094] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. Easy-to-maintain range hood fan structure, including A fan housing (1) is used to protect the internal structure of the fan; Features: One side of the wind duct housing (1) is an opening structure (14), and the opening structure (14) can expose the internal structure of the wind duct; the wind duct housing (1) includes a motor maintenance cover (3), and the motor maintenance cover (3) corresponds to the opening structure (14), and the motor maintenance cover (3) is detachably connected to the wind duct housing (1); the wind duct housing (1) includes an air duct outer cover (2), and the air duct outer cover (2) surrounds the outer side of the wind duct housing (1), and the air duct outer cover (2) is detachably connected to the wind duct housing (1).

2. The range hood fan structure that is easy to maintain according to claim 1 is characterized in that: The two sides of the air duct housing (1) are wall panels (11), and the wall panels (11) on the two sides are provided with first screw holes (21) at positions away from the opening structure (14). The two sides of the air duct outer cover (2) are provided with first mounting holes (22) at positions corresponding to the first screw holes (21). After the first mounting holes (22) correspond to the first screw holes (21), the air duct outer cover (2) and the air duct housing (1) can be detachably connected by tightening screws.

3. The range hood fan structure that is easy to maintain according to claim 1 is characterized in that: The opening structure (14) is recessed in one side of the air duct housing (1); longitudinal convex strips (33) are formed on both sides of the opening structure (14); and a plurality of slots (32) are formed through the surface of the longitudinal convex strips (33); a plurality of hooks (31) corresponding to the slots (32) are formed on both sides of the motor maintenance cover (3); and the motor maintenance cover (3) can be detachably connected to the air duct housing (1) through the cooperation of the slots (32) and the hooks (31).

4. The range hood fan structure that is easy to maintain according to claim 3 is characterized in that: The air duct housing (1) is provided with a second screw hole (34) at a position corresponding to the position above the opening structure (14); the air duct housing (1) comprises a bottom plate (13), and a third screw hole (36) is provided on one side of the bottom plate (13) corresponding to the recessed opening structure (14); a mounting plate (37) is connected to the bottom of the motor maintenance cover (3), the mounting plate (37) is perpendicular to the motor maintenance cover (3), a third mounting hole (38) corresponding to the third screw hole (36) is formed through the surface of the mounting plate (37), and a second mounting hole (35) is formed through the surface of the motor maintenance cover (3) at a position corresponding to the second screw hole (34); the second mounting hole (35) is tightened with the second screw hole (34) by screws, and the third mounting hole (38) is tightened with the third screw hole (36) by screws, so that the motor maintenance cover (3) and the air duct housing (1) can be detachably connected.

5. The range hood fan structure that is easy to maintain according to claim 1 is characterized in that: The wind tube housing (1) comprises a fan assembly, and the fan assembly is detachably installed in the wind tube housing (1).

6. The range hood fan structure that is easy to maintain according to claim 5 is characterized in that: The fan assembly comprises a motor (4), a mounting base (41) is formed on the side surface, and the motor (4) is detachably connected to the wind cylinder housing (1) via the mounting base (41).

7. The range hood fan structure that is easy to maintain according to claim 6 is characterized in that: The fan assembly comprises a wind wheel (5), wherein the wind wheel (5) is mounted on the shaft (42) of the motor (4), and the wind wheel (5) rotates coaxially with the shaft (42) of the motor (4).

8. The range hood fan structure that is easy to maintain according to claim 7 is characterized in that: One side of the wind wheel (5) is connected to an air guide ring (52), a fifth mounting hole (54) is provided on the surface of the air guide ring (52), a fifth screw hole is provided at a position corresponding to the fifth mounting hole (54) on the one side of the wind wheel (5), and the air guide ring (52) is detachably connected to the one side of the wind wheel (5) by passing a screw through the fifth mounting hole (54) and tightening the screw with the fifth screw hole.

9. The range hood fan structure that is easy to maintain according to claim 8 is characterized in that: One side of the wind wheel (5) comprises a wind wheel cap (55), the wind wheel cap (55) being screwed together with one end of the shaft (42) of the motor (4), and the wind wheel cap (55) being used to limit the wind wheel (5) in the direction of the shaft (42) on one side of the wind wheel (5).

10. The range hood fan structure that is easy to maintain according to claim 1, characterized in that: The wind The shell (1) of the drum comprises a back plate (12), the outer side of which is connected to a hanging bar (6). The hanging strip (6) is used for hanging and installing the wind tube structure.

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