Air outlet assembly and range hood applying same

Abstract

The utility model discloses an air-out assembly and a range hood applying the air-out assembly, the air-out assembly comprises an air-out cover and an adapting piece connected between the air-out cover and a smoke pipe, the adapting piece is in a hollow cylindrical shape, a groove which is sunken downwards is formed in the top of the air-out cover, and the air-out cover and the smoke pipe are arranged in the groove. The bottom of the adapter is arranged in the groove, the air outlet assembly further comprises a sealing ring arranged in the groove, and the bottom of the adapter abuts against the sealing ring. Compared with the prior art, the air outlet cover has the advantages that the sealing effect can be improved, and the problems of smoke leakage and oil leakage caused by manufacturing errors of the adapter and the air outlet cover are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an oil fume purification assembly, especially an air outlet assembly of an extractor hood and the extractor hood. BACKGROUND

[0002] The extractor hood is a kitchen appliance for purifying the kitchen environment, which can quickly remove the waste of the stove combustion and the oil fume generated in the cooking process to the outdoor, reduce pollution, purify air, etc.

[0003] The air outlet assembly disclosed in the Chinese utility model patent with the application number 202221537701.5 and the extractor hood applying the air outlet assembly, the air outlet assembly includes an air outlet cover and a smoke pipe arranged on the air outlet cover, a transition pipe is further arranged between the air outlet cover and the smoke pipe, the transition pipe is hollow and has opposite first and second end portions, the first end portion is connected with the output end of the air outlet cover, and the second end portion is connected with the input end of the smoke pipe, so that the air outlet cover and the smoke pipe are in fluid communication, and the air outlet assembly further includes a pressing buckle assembly for detachably connecting the transition pipe and the air outlet cover.

[0004] The extractor hood on the market generally adopts a smoke pipe directly sleeved on the air outlet of the air outlet cover and fixed and sealed by screws and sealing tapes. Due to the narrow space between the air outlet cover and the wall on which the extractor hood is installed, the installation environment and the operation level of the installer are limited, which makes it inconvenient to wrap the tape, and improper operation may cause poor adhesion of the tape, and there is a risk of oil and smoke leakage.

[0005] The above-mentioned patent adds a smoke pipe mounting adapter to fix the smoke pipe on the adapter, and the adapter is assembled with the air outlet cover, and the sealing is realized by pressing the two parts with the clamping structure. However, there is a manufacturing error between the adapter and the air outlet cover, which causes a gap between the adapter and the air outlet cover, and there is still a problem of smoke and oil leakage. UTILITY MODEL CONTENTS

[0006] The first technical problem to be solved by the utility model is to provide an air outlet assembly that can improve the sealing effect and solve the problem of smoke and oil leakage caused by the manufacturing error between the adapter and the air outlet cover.

[0007] The second technical problem to be solved by the utility model is to provide an extractor hood applying the air outlet assembly.

[0008] The utility model discloses a technical scheme that the first technical problem is solved, which is an air outlet assembly, comprising an air outlet cover and an adapter connected between the air outlet cover and a flue, the adapter is hollow and cylindrical, a groove recessed downward is formed in the top of the air outlet cover, and the bottom of the adapter is placed in the groove, characterized in that the air outlet assembly further comprises a sealing ring arranged in the groove, and the bottom of the adapter abuts against the sealing ring.

[0009] By arranging the sealing ring between the adapter and the air outlet cover, the sealing effect can be improved, and the problem of smoke and oil leakage caused by manufacturing errors of the adapter and the air outlet cover can be solved.

[0010] In order to reduce the contact area with the sealing ring when the flange bottom presses the sealing ring, form a larger pressure on the sealing ring, and form multiple seals, the bottom of the adapter is formed with a flange extending radially outward, the bottom of the flange is formed with at least one groove recessed upward, and the bottom of the flange abuts against the sealing ring.

[0011] In order to arrange the groove on the air outlet cover, the air outlet cover comprises a cover body, the top of the cover body is formed with an inner wall and an outer wall arranged radially and spaced apart and extending upward, and the inner wall, the outer wall and the top of the cover body constitute the groove.

[0012] In order to realize the connection of the air outlet cover and the adapter, the air outlet cover and the adapter are rotationally clamped.

[0013] In order to realize the connection of the air outlet cover and the adapter, the adapter is provided with a buckle, the outer wall of the air outlet cover is formed with a guide groove for the buckle to pass through and a clamping groove opened along the circumference of the outer wall, the guide groove and the clamping groove are communicated, and the buckle is clamped with the clamping groove.

[0014] In order to facilitate the buckle of the adapter to pass through the guide groove, the guide groove penetrates through the top of the outer wall.

[0015] In order to prevent the adapter from being separated from the air outlet cover after the connection, a separation-preventing structure is further arranged between the air outlet cover and the adapter.

[0016] In order to prevent the adapter from being separated from the air outlet cover after the connection, the separation-preventing structure comprises a first protrusion arranged on the top of the buckle and a separation-preventing groove recessed upward arranged on the top of the clamping groove of the air outlet cover, and the first protrusion is clamped with the separation-preventing groove.

[0017] In order to prevent the adapter from being separated from the air outlet cover after the connection, the separation-preventing structure comprises a second protrusion protruding downward arranged on the top of the clamping groove of the air outlet cover, and the second protrusion is arranged on one side of the buckle close to the guide groove.

[0018] The utility model discloses a technical scheme that the above-mentioned second technical problem is solved is as follows: the range hood applies the above-mentioned air outlet component.

[0019] Compared with the prior art, the utility model has the advantages that by setting the sealing ring between the adapter and the air outlet cover, the sealing effect can be improved, and the problems of smoke leakage and oil leakage of the adapter and the air outlet cover due to manufacturing errors are solved. By setting the anti-dropping structure between the adapter and the air outlet cover, the adapter can be disassembled and assembled more easily, and the anti-dropping effect is better. The adapter is prevented from falling off due to long-term working vibration of the range hood, and the range hood is more stable, reliable and worry-free to use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Figure 1 is a schematic view of the air outlet component of the utility model embodiment one;

[0021] Figure 2 Figure 2 is a sectional view of the air outlet component of the utility model embodiment one; Figure 1 Figure 3 is an enlarged view of the local I;

[0022] Figure 3 Figure 4 is an exploded view of the air outlet component of the utility model embodiment one;

[0023] Figure 4 Figure 5 is a sectional view of the air outlet component of the utility model embodiment one;

[0024] Figure 5 Figure 6 is an enlarged view of the local II; Figure 4 Figure 7 is a schematic view of the anti-dropping structure of the air outlet component of the utility model embodiment two.

[0025] Figure 6 Figure 7 is a schematic view of the anti-dropping structure of the air outlet component of the utility model embodiment two. DETAILED DESCRIPTION

[0026] The utility model will be described in further detail below with reference to the drawings.

[0027] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, since the embodiments disclosed by the utility model can be arranged in different directions, so these terms indicating the direction are only as an illustration and should not be regarded as a limitation, for example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features limited by "first", "second" can be explicitly or implicitly include one or more features.

[0028] Embodiment one

[0029] Referring to Figures 1-4 An air outlet assembly comprises an air outlet cover 1 and an adapter 2 connected between the air outlet cover 1 and a flue pipe, and the adapter 2 is in the shape of a hollow cylinder.

[0030] Referring to Figures 4-5 The top of the air outlet cover 1 is formed with a recess 11 recessed downward, and the bottom of the adapter 2 is arranged in the recess 11, and the air outlet assembly further comprises a sealing ring 3 arranged in the recess 11, and the bottom of the adapter 2 abuts against the sealing ring 3.

[0031] The air outlet cover 1 comprises a cover body 12, and the cover body 12 constitutes a main part of the air outlet cover 1, and the top of the cover body 12 is formed with an inner wall 17 and an outer wall 18 arranged in a radial direction and spaced apart from each other and extending upward, and the inner wall 17, the outer wall 18 and the top of the cover body 12 constitute the above-mentioned recess 11. The air outlet assembly further comprises a check valve 4 arranged on the inner wall 17. The air outlet assembly further comprises a sealing gasket 5 arranged between the air outlet cover 1 and a fan system.

[0032] The top of the adapter 2 is formed with an inner support plate 23 and an outer support plate 24 in a circumferential direction. The inner support plate 23 and the outer support plate 24 are arranged in a radial direction and spaced apart from each other from inside to outside. One end of the flue pipe is arranged between the inner support plate 23 and the outer support plate 24. The flue pipe can be fixed on the outer support plate 24 by means of screws and adhesive tapes. The height of the inner support plate 23 is higher than the height of the outer support plate 24, so as to form a support when the adhesive tape is pasted. Since the adapter 2 is designed separately from the air outlet cover 1, the operation between the flue pipe and the adapter 2 is not limited by space, and has greater flexibility.

[0033] Referring to Figure 3In order to ensure the long-term use, the oil in the smoke pipe is smoothly guided into the oil passage of the range hood, and the first oil guiding hole 231 is further formed on the inner support plate 23, which is recessed from the top to the bottom. A plurality of second oil guiding holes 171 are also formed on the matching structure of the inner wall 17 and the check valve 4, which are recessed from the top to the bottom.

[0034] Referring to Figures 3-5 In order to improve the sealing effect, the adapter is generally an injection molding part, and the dimensional stability is relatively poor due to the influence of injection molding process and environment. In order to increase the dimensional stability and structural strength of the adapter 2, a flange 21 extending radially outward is formed at the bottom of the adapter 2. The bottom of the flange 21 is formed with at least one upwardly recessed groove 211, so that when the flange 21 is pressed against the sealing ring 3, the contact area with the sealing ring 3 is reduced, the pressure on the sealing ring 3 is increased, and multiple sealing (at least two sealing) is formed, which has better sealing effect. In order to ensure the dimensional stability of the adapter 2, a plurality of reinforcing ribs 25 are arranged on the outer wall of the adapter 2 to improve the structural strength. In order to improve the sealing effect, the compression amount of the sealing ring 3 is preferably controlled between 15% and 30%.

[0035] Referring to Figure 2 The air outlet cover 1 and the adapter 2 are connected by rotating clamping. The lower peripheral wall of the adapter 2 is provided with a buckle 22 protruding outward. The outer wall 18 of the air outlet cover 1 is formed with a guide groove 181 for the buckle 22 to pass through from top to bottom, and a clamping groove 182 is sequentially or reversely formed in the circumferential direction of the outer wall 18. The guide groove 181 and the clamping groove 182 are communicated, and the two form a substantially L-shaped shape, and the buckle 22 is clamped with the clamping groove 182. The clamping groove 182 in the embodiment is sequentially arranged in the clockwise direction. The guide groove 181 penetrates the top of the outer wall 18, and when installed, the buckle 22 can be clamped into the guide groove 181 from top to bottom, and then the air outlet cover 1 and the adapter 2 are relatively rotated, so that the buckle 22 is turned into the clamping groove 182, and the clamping is completed.

[0036] The number of buckles 22 and clamping grooves 182 corresponds, and in order to ensure the sealing effect, the number of buckles 22 is preferably ≥4, and is uniformly distributed along the circumferential direction of the adapter 2. In order to improve the process of the part and the strength and reliability of the clamping structure, the buckle 22 can adopt a hollow structure, and the wall thickness of the outer wall 18 of the air outlet cover 1 is increased to enhance the structural strength at the clamping groove 182.

[0037] Referring to Figure 2To realize easy installation of the adapter 2 and good anti-unclipping effect, an anti-unclipping structure is further arranged between the air outlet cover 1 and the adapter 2. The anti-unclipping structure comprises a first protrusion 221 arranged on the top of the buckle 22, and an anti-unclipping groove 183 arranged on the air outlet cover 1 and recessed upward at the top of the corresponding clamping groove 182, the first protrusion 221 being clamped with the anti-unclipping groove 183.

[0038] During installation, the adapter 2 is rotated in the forward direction, the first protrusion 221 can first contact the structure at the top of the corresponding clamping groove 182 on the air outlet cover 1, forming a fulcrum, and through the lever effect, the structure at the top of the corresponding clamping groove 182 on the air outlet cover 1 is lifted up, so that the adapter 2 is easily rotated into the clamping groove 182. After the adapter 2 is clamped, the first protrusion 221 on the buckle 22 enters the anti-unclipping groove 183, forming a reliable anti-unclipping structure. When the adapter 2 needs to be disassembled, the adapter 2 is rotated in the reverse direction, the first protrusion 221 first contacts the anti-unclipping groove 183, and again forms a lever effect, lifting up the structure at the top of the corresponding clamping groove 182 on the air outlet cover 1, so that the adapter 2 is easily removed. Compared with the existing air outlet cover with quick disassembly structure on the market, the disassembly is more convenient, and the anti-unclipping effect is better, avoiding the problem of falling of the adapter 2 caused by long-term working vibration of the range hood, and the use is more stable, reliable and worry-free.

[0039] Embodiment Two

[0040] Reference Figure 6 The difference between the present embodiment and the above-mentioned embodiment one is that the anti-unclipping structure comprises a second protrusion 184 arranged on the outer wall 18 and protruding downward at the top of the corresponding clamping groove 182, instead of the first protrusion 221 and the anti-unclipping groove 183 in the embodiment one. The second protrusion 184 is clamped on one side of the buckle 22 close to the guide groove 181.

Claims

1. An air outlet assembly comprising an air outlet cover (1) and an adapter (2) connected between the air outlet cover (1) and a flue, the adapter (2) being hollow and cylindrical, the top of the air outlet cover (1) being formed with a recess (11) recessed downwards, the bottom of the adapter (2) being placed in the recess (11), characterized in that: The air outlet assembly further comprises a sealing ring (3) arranged in the groove (11), and the bottom of the adapter (2) abuts against the sealing ring (3).

2. The air outlet assembly of claim 1, wherein: The bottom of the adapter (2) is formed with a flange (21) extending radially outward, and the bottom of the flange (21) is formed with at least one upwardly recessed groove (211), and the bottom of the flange (21) abuts against the sealing ring (3).

3. The air outlet assembly of claim 1, wherein: The air outlet cover (1) comprises a cover body (12), and the top of the cover body (12) is formed with radially spaced inner walls (17) and outer walls (18) extending upwardly, and the inner walls (17), the outer walls (18) and the top of the cover body (12) constitute the above-mentioned groove (11).

4. The air outlet assembly of claim 3, wherein: The air outlet cover (1) is rotationally connected with the adapter (2).

5. The air outlet assembly of claim 4, wherein: The adapter (2) is provided with a buckle (22) on the peripheral wall, the outer wall (18) of the air outlet cover (1) is formed with a guide groove (181) opening downwardly for the buckle (22) to pass through and a clamping groove (182) opening along the periphery of the outer wall (18), the guide groove (181) and the clamping groove (182) are communicated, and the buckle (22) is clamped with the clamping groove (182).

6. The air outlet assembly of claim 5, wherein: The guide groove (181) penetrates the top of the outer wall (18).

7. The air outlet assembly of claim 5, wherein: The air outlet cover (1) and the adapter (2) are further provided with an anti-disengagement structure.

8. The air outlet assembly of claim 7, wherein: The anti-disengagement structure comprises a first protrusion (221) arranged on the top of the buckle (22) and an anti-disengagement groove (183) arranged on the top of the clamping groove (182) of the air outlet cover (1) and recessed upwardly, and the first protrusion (221) is clamped with the anti-disengagement groove (183).

9. The air outlet assembly of claim 7, wherein: The anti-disengagement structure comprises a second protrusion (184) arranged on the top of the clamping groove (182) of the air outlet cover (1) and protruding downwardly, and the second protrusion (184) is clamped on one side of the buckle (22) close to the guide groove (181).

10. A range hood characterized by: The extractor hood applies the air outlet assembly according to any one of claims 1-9.

Images