Decorative cover assembly structure of range hood

Abstract

A decorative cover assembling structure of a range hood comprises a lower box body and a decorative cover installed on the lower box body, the upper edge of a front side plate of the lower box body is provided with a first bent edge bent backwards, limiting grooves are distributed in the first bent edge in the width direction of the lower box body at intervals, and the lower edge of a front side plate of the decorative cover is provided with a second bent edge bent backwards. The rear edge of the second bent edge is provided with a buckle which is vertically bent downwards, the second bent edge abuts against the first bent edge, and the buckle is inserted into the corresponding limiting groove. Compared with the prior art, the decorative cover assembly structure of the range hood has the advantages that the upper edge of the front side plate of the lower box body is provided with the first bent edge, the front side plate of the decorative cover is provided with the second bent edge, in the assembly state, the first bent edge can abut against the second bent edge, the structural strength of the assembly position can be improved by adopting the bent edges, and the service life of the decorative cover is prolonged. The buckles located on the second bent edges can be inserted into the limiting grooves of the first bent edges, and accurate positioning and strength supporting of the assembly cover are achieved.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to an assembly structure of a decorative cover of a range hood. Background Art

[0002] A range hood generally includes a lower box body and a decorative cover installed above the lower box body. An air inlet cavity is provided in the lower box body. A fan frame and a range hood fan are installed inside the decorative cover. Oil fume is sucked into the air inlet cavity and discharged outwards through the range hood fan. Due to special appearance requirements, the front of the outer cover of the decorative cover of the range hood cannot be fixed with screws, otherwise the integrity of the front of the product will be damaged. In addition, since the sheet metal part of the decorative cover is relatively thin and has a large width dimension, this special structural feature makes the strength of the bottom of the front of the decorative cover weak. When a user wipes and cleans it, the decorative cover will be pressed. If the existing conventional assembly structure is adopted, the decorative cover will be deformed after being pressed, thereby affecting the overall appearance of the range hood. Moreover, due to process limitations, the limiting groove adopted in the assembly structure of the decorative cover needs to have a certain width, and the width of the buckle cooperating with the limiting groove is limited by the sheet metal part and cannot be designed to be the same as the width of the limiting groove. To sum up, it is necessary to further improve the existing assembly structure of the decorative cover of the range hood. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an assembly structure of an assembly cover of a range hood with high structural strength and capable of accurate positioning in view of the above-mentioned current situation of the prior art.

[0004] The technical solution adopted by the utility model to solve the above technical problem is: an assembly structure of a decorative cover of a range hood, including a lower box body and a decorative cover installed on the lower box body, characterized in that: the upper edge of the front side plate of the lower box body has a first bent edge bent backward, and limiting grooves are distributed at intervals in the width direction of the lower box body on the first bent edge; the lower edge of the front side plate of the decorative cover has a second bent edge bent backward, and the rear edge of the second bent edge has a buckle bent vertically downward, and the second bent edge abuts against the first bent edge and the buckle is inserted into the corresponding limiting groove.

[0005] In order to limit the buckle reliably in the limiting groove, the limiting groove has a front limiting surface and a rear limiting surface, and the buckle is limited between the front limiting surface and the rear limiting surface.

[0006] In order to increase the contact area between the buckle and the clamping groove, the front side surface and the rear side surface of the buckle are both flat surfaces, the front side surface of the buckle abuts against the front limiting surface, and the rear side surface of the buckle abuts against the rear limiting surface.

[0007] In order to further limit the buckle reliably within the limiting groove, the limiting groove is a bent groove, and the front limiting surface and the rear limiting surface are staggered with each other in the left - right direction. With such a setting, the limiting groove realizes the limiting function in the front - rear two directions, taking into account the processability and appearance while ensuring the function.

[0008] As a preferred solution, the middle section of the limiting groove protrudes outward to the front side, the rear side surface of the middle section of the limiting groove constitutes the rear limiting surface, the front side surfaces of the left and right sections of the limiting groove constitute the front limiting surface, and the buckle is limited between the front limiting surface and the rear limiting surface.

[0009] As another preferred solution, the middle section of the limiting groove protrudes outward to the rear side, the front side surface of the middle section of the limiting groove constitutes the front limiting surface, the rear side surfaces of the left and right sections of the limiting groove constitute the rear limiting surface, and the buckle is limited between the front limiting surface and the rear limiting surface.

[0010] Further preferably, the relationship between the width Ta of the limiting groove and the thickness T of the buckle satisfies Ta>4T.

[0011] Further preferably, the relationship between the vertical distance Tb between the front limiting surface and the rear limiting surface of the limiting groove and the thickness T of the buckle satisfies 0.3<Tb - T<0.8.

[0012] In order to have two buckles which are respectively arranged on the left and right sides of the left - right center line of the decorative cover.

[0013] Further preferably, the number of buckles can be 1 or more than 2. When there is 1 buckle, the buckle needs to be designed very long and arranged at the left - right center position of the decorative cover. When there are more than 2 buckles, they are spaced apart along the left - right direction of the decorative cover.

[0014] In order to make the decorative cover flush with the lower box body, in the state where the decorative cover is assembled with the lower box body, the front side surface of the front side plate of the decorative cover is flush with the front side surface of the front side plate of the lower box body.

[0015] Compared with the existing design, the advantages of the present utility model are as follows: The upper edge of the front side plate of the lower box body of the decorative cover assembly structure of this range hood has a first bending edge, and the front side plate of the decorative cover has a second bending edge. And in the assembled state, the first bending edge can abut against the second bending edge. Using the bending edge can improve the structural strength at the assembly position. The buckle located on the second bending edge can be inserted into the limiting groove of the first bending edge, realizing the accurate positioning and strength support of the assembled cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the range hood according to the embodiment of the present utility model;

[0017] Figure 2 is Figure 1Side view of the range hood shown;

[0018] Figure 3 is Figure 1 Schematic structural view of the range hood shown after removing the front side plate of the decorative cover;

[0019] Figure 4 Top view of the structure of the lower box part of the embodiment of the present utility model;

[0020] Figure 5 is Figure 4 Enlarged schematic view of part A in

[0021] Figure 6 Schematic structural view of the front side plate of the decorative cover of the embodiment of the present utility model;

[0022] Figure 7 is Figure 6 Enlarged schematic view of part B in

[0023] Figure 8 Cross-sectional view of the decorative cover assembly structure of the embodiment of the present utility model. Detailed implementation mode

[0024] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] As Figures 1 to 8 shown, the decorative cover assembly structure of the range hood in this embodiment includes a lower box body 1 and a decorative cover 2 installed on the lower box body 1. The upper edge of the front side plate of the lower box body 1 has a first bent edge 11 bent backward, and limiting grooves 12 are distributed at intervals in the width direction of the lower box body 1 on the first bent edge 11. The limiting grooves 12 have a front limiting surface 121 and a rear limiting surface 122. The lower edge of the front side plate of the decorative cover 2 has a second bent edge 21 bent backward, and the rear edge of the second bent edge 21 has a buckle 22 bent vertically downward. The second bent edge 21 abuts against the first bent edge 11 and the buckle 22 is inserted into the corresponding limiting groove 12, and the buckle 22 is limited between the front limiting surface 121 and the rear limiting surface 122. In this embodiment, the front side surface 221 and the rear side surface 222 of the buckle 22 are both flat surfaces. The front side surface 221 of the buckle 22 abuts against the front limiting surface 121, and the rear side surface 222 of the buckle 22 abuts against the rear limiting surface 122. There are 2 limiting grooves 12 in this embodiment, and there are 2 buckles 22 which are respectively arranged on the left and right sides of the left-right center line of the decorative cover 2, so that the decorative cover 2 can not only resist the acting force when being pressed, but also avoid the phenomenon that the middle position at the bottom of the decorative cover 2 bulges due to the over-large width of the decorative cover 2.

[0026] As Figure 5 and Figure 8As shown, the limiting groove 12 of this embodiment is designed as a bent groove, and the front limiting surface 121 and the rear limiting surface 122 are staggered from each other in the left-right direction. Specifically, the middle section of the limiting groove 12 protrudes outward to the front side, the rear side surface of the middle section of the limiting groove 12 constitutes the rear limiting surface 122, and the front side surfaces of the left and right sections of the limiting groove 12 constitute the front limiting surface 121. The buckle 22 is limited between the front limiting surface 121 and the rear limiting surface 122. The limiting groove 12 adopts a special narrow groove design to limit the buckle 22 in the front and rear directions. While improving the strength, it also takes into account the processability and appearance. The specific parameter relationship is as follows: the relationship between the width Ta of the limiting groove 12 and the thickness T of the buckle 22 satisfies Ta > 4T. The relationship between the vertical distance Tb between the front limiting surface 121 and the rear limiting surface 122 of the limiting groove 12 and the thickness T of the buckle 22 satisfies 0.3 < Tb - T < 0.8. Usually, the thickness T of the buckle 22 is 0.6 - 1.2 mm.

[0027] As Figure 2 shown, after the decorative cover 2 is assembled, in the state where the decorative cover 2 is assembled with the lower box body 1, the front side surface of the front side plate of the decorative cover 2 is flush with the front side surface of the front side plate of the lower box body 1.

[0028] In addition, the middle section of the limiting groove 12 can also adopt a structure that protrudes outward to the rear side, that is, the front side surface of the middle section of the limiting groove 12 constitutes the front limiting surface, and the rear side surfaces of the left and right sections of the limiting groove 12 constitute the rear limiting surface. The buckle 22 is limited between the front limiting surface and the rear limiting surface.

[0029] In the description and claims of the present utility model, terms indicating directions such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various exemplary structural parts and elements of the present utility model. However, these terms are used here only for the purpose of convenient explanation and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

Claims

1. A decorative cover assembly structure for a range hood, comprising a lower box (1) and a decorative cover (2) mounted on the lower box (1), characterized in that: The upper edge of the front side plate of the lower box body (1) has a first bent edge (11) bent backwards, and limiting grooves (12) are arranged at intervals on the first bent edge (11) in the width direction of the lower box body (1); the lower edge of the front side plate of the decorative cover (2) has a second bent edge (21) bent backwards, and the rear edge of the second bent edge (21) has a buckle (22) bent vertically downwards, and the second bent edge (21) abuts against the first bent edge (11) and the buckle (22) is inserted into the corresponding limiting groove (12).

2. The decorative cover assembly structure of the range hood according to claim 1, characterized in that: The limiting groove (12) has a front limiting surface (121) and a rear limiting surface (122), and the buckle (22) is limited between the front limiting surface (121) and the rear limiting surface (122).

3. The decorative cover assembly structure of the range hood according to claim 2, characterized in that: The front side surface (221) and the rear side surface (222) of the buckle (22) are both planes; the front side surface (221) of the buckle (22) abuts against the front limiting surface (121); and the rear side surface (222) of the buckle (22) abuts against the rear limiting surface (122).

4. The decorative cover assembly structure of the range hood according to claim 2, characterized in that: The limiting groove (12) is a bending groove, and the front limiting surface (121) and the rear limiting surface (122) are staggered with each other in the left-right direction.

5. The decorative cover assembly structure of the range hood according to claim 4, characterized in that: The middle section of the limiting groove (12) protrudes outward toward the front side, the rear side surface of the middle section of the limiting groove (12) constitutes a rear limiting surface (122), the front side surfaces of the left section and the right section of the limiting groove (12) constitute a front limiting surface (121), and the buckle (22) is limited between the front limiting surface (121) and the rear limiting surface (122).

6. The decorative cover assembly structure of the range hood according to claim 4, characterized in that: The middle section of the limiting groove (12) protrudes outwardly to the rear side, the front side surface of the middle section of the limiting groove (12) constitutes a front limiting surface, the rear side surfaces of the left section and the right section of the limiting groove (12) constitute a rear limiting surface, and the buckle (22) is limited between the front limiting surface and the rear limiting surface.

7. The decorative cover assembly structure of the range hood according to claim 5 or 6, characterized in that: The relationship between the width Ta of the limiting groove (12) and the thickness T of the buckle (22) satisfies Ta>4T.

8. The decorative cover assembly structure of the range hood according to claim 7, characterized in that: The relationship between the vertical distance Tb between the front limiting surface (121) and the rear limiting surface (122) of the limiting groove (12) and the thickness T of the buckle (22) satisfies 0.3<Tb-T<0.

8.

9. The decorative cover assembly structure of a range hood according to claim 1, characterized in that: There are two buckles (22) which are respectively arranged on the left and right sides of the left and right center lines of the decorative cover (2).

10. The decorative cover assembly structure of a range hood according to claim 1, characterized in that: When the decorative cover (2) and the lower box body (1) are assembled, the front side plate of the decorative cover (2) is flush with the front side plate of the lower box body (1).

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