Clamping structure and range hood

Abstract

The utility model belongs to the technical field of kitchen appliances, and particularly relates to a clamping structure and a range hood. The clamping structure is used for connecting a filter screen and a machine shell of the range hood, the clamping structure comprises a fixing buckle and a buckle, the fixing buckle is used for being connected with one of the filter screen and the machine shell, the fixing buckle is a rotary body, and a limiting part is arranged on the outer wall of the fixing buckle; the buckle comprises a mounting part and a concave part arranged on the mounting part, the mounting part is used for being connected with the other one of the filter screen and the machine shell, and an elastic buckle is arranged on the inner wall of the concave part; the fixing buckle can be inserted into the concave part, and the limiting part can be connected with the elastic buckle in a clamped mode. Through cooperation of the fixing buckles and the buckles, clamping connection between the filter screen and the machine shell is achieved, and then rapid dismounting and mounting of the filter screen are achieved; the fixing buckle and the clamping buckle are simple in structure and low in cost; and the fixing buckle is a rotary body, the installation direction is not limited, and the installation process of the fixing buckle is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a clamping structure and a range hood. Background Art

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. It is usually installed above the kitchen stove to quickly extract the waste generated by the burning of the stove and the harmful oil fumes produced during the cooking process and discharge them outdoors. A filter screen is provided at the smoke suction port of the range hood. As a barrier to block the oil fumes, the oil fumes are separated. After being used for a period of time, the filter screen will adhere to oil stains and needs to be removed from the smoke suction port for cleaning.

[0003] At present, the fixing methods of the filter screen mainly include: First, screw fixing, which has a simple structure and low cost, but requires tools for disassembly and assembly; Second, hardware buckle fixing, which does not require tools for disassembly and assembly, but has a complex structure and high cost; Third, magnetic fixing, which has a simple structure and does not require tools for disassembly and assembly, but has a high cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a clamping structure and a range hood, which can achieve quick disassembly and assembly, and have a simple structure and low cost.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping structure for connecting the filter screen and the casing of a range hood, comprising:

[0007] A fixing buckle for connecting with one of the filter screen and the casing. The fixing buckle is a rotating body, and a limiting part is arranged on the outer wall of the fixing buckle;

[0008] A buckle, including a mounting part and a concave part arranged on the mounting part. The mounting part is used for connecting with the other of the filter screen and the casing, and a spring buckle is arranged on the inner wall of the concave part;

[0009] The fixing buckle can be inserted into the concave part, and the limiting part can be clamped with the spring buckle.

[0010] As a preferred technical solution of the clamping structure, a threaded hole is arranged on the fixing buckle, a stud is arranged on the filter screen, and the fixing buckle is threadedly connected with the stud through the threaded hole.

[0011] As a preferred technical solution of the clamping structure, a tool hole is arranged on the fixing buckle, and the tool hole is used for cooperating with a tightening tool.

[0012] As a preferred technical solution of the snap connection structure, the cross-section of the concave portion is U-shaped, the mounting portion is located at the top opening end of the concave portion, and the elastic buckle is arranged on two opposite side walls of the concave portion.

[0013] As a preferred technical solution of the snap connection structure, an avoidance hole for the elastic deformation of the elastic buckle is formed on the side wall of the concave portion.

[0014] As a preferred technical solution of the snap connection structure, one end of the elastic buckle is connected to the side wall of the concave portion, the other end of the elastic buckle is a free end, and an elastic force adjusting structure is arranged on the elastic buckle, and the elastic force adjusting structure is used for adjusting the elastic force of the elastic buckle.

[0015] As a preferred technical solution of the snap connection structure, the elastic force adjusting structure is an elastic force adjusting hole, the elastic force adjusting hole is formed at one end of the elastic buckle connected to the side wall of the concave portion, and the elastic force of the elastic buckle can be adjusted by the opening size of the elastic force adjusting hole.

[0016] As a preferred technical solution of the snap connection structure, the width of one end of the elastic buckle connected to the side wall of the concave portion is D, and the width of the elastic force adjusting hole is C, then C = 0 - 0.8D.

[0017] As a preferred technical solution of the snap connection structure, the elastic force adjusting structure is an elastic force adjusting rib, the elastic force adjusting rib is arranged at one end of the elastic buckle connected to the side wall of the concave portion, and the elastic force of the elastic buckle can be adjusted by the number of the elastic force adjusting ribs arranged.

[0018] The range hood includes a housing, a filter screen and the snap connection structure according to any one of the above solutions. The fixed buckle is installed on one of the filter screen and the housing, the buckle is installed on the other of the filter screen and the housing, and the fixed buckle is snap-connected to the buckle.

[0019] The beneficial effects of the present utility model:

[0020] The present utility model provides a snap connection structure for connecting the filter screen and the housing of a range hood. The snap connection structure includes a fixed buckle and a buckle. The fixed buckle is used for connecting to one of the filter screen and the housing. The fixed buckle is a rotating body, and a limiting portion is arranged on the outer wall of the fixed buckle. The buckle includes a mounting portion and a concave portion arranged on the mounting portion. The mounting portion is used for connecting to the other of the filter screen and the housing. An elastic buckle is arranged on the inner wall of the concave portion. The fixed buckle can be inserted into the concave portion, and the limiting portion can be snap-connected to the elastic buckle. The snap connection between the filter screen and the housing is realized through the cooperation of the fixed buckle and the buckle, and further the rapid disassembly and installation of the filter screen are realized. Moreover, the structures of the fixed buckle and the buckle are both relatively simple, and the cost is low. And the fixed buckle is a rotating body, and the installation direction is not limited, which simplifies the installation process of the fixed buckle. Description of the Drawings

[0021] Figure 1 is a schematic exploded view of the range hood provided by the embodiment of the present utility model;

[0022] Figure 2 is a schematic structural view of the filter net and the fixing buckle involved in the embodiment of the present utility model;

[0023] Figure 3 is a partial cross-sectional view of the filter net and the fixing buckle involved in the embodiment of the present utility model;

[0024] Figure 4 is a schematic structural view of the casing involved in the embodiment of the present utility model;

[0025] Figure 5 is Figure 4 a partial enlarged view at A in;

[0026] Figure 6 is a schematic structural view of the buckle involved in the embodiment of the present utility model Figure 1 ;

[0027] Figure 7 is a schematic structural view of the buckle involved in the embodiment of the present utility model Figure 2 ;

[0028] Figure 8 is Figure 7 a schematic view after the structure in is flattened;

[0029] Figure 9 is a schematic structural view of the buckle involved in the embodiment of the present utility model Figure 3 ;

[0030] Figure 10 is a schematic structural view of the range hood provided by the embodiment of the present utility model;

[0031] Figure 11 is Figure 10 a cross-sectional view taken along the line B-B in.

[0032] In the figure:

[0033] 100, casing; 101, oil suction port; 102, through hole; 103, first mounting hole; 200, filter net; 201, stud;

[0034] 11. Fixed buckle; 111. Limiting part; 112. Threaded hole; 113. Tool hole; 12. Snap; 121. Mounting part; 1211. Mounting plate; 1211a. Second mounting hole; 122. Concave part; 1221. Avoidance hole; 123. Elastic snap; 1231. First elastic plate; 1232. Second elastic plate; 1233. Clamping part; 1234. Elastic force adjustment hole; 1235. Elastic force adjustment rib. Detailed implementation mode

[0035] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0036] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0037] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0038] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] Such as Figures 1 to 11As shown in the figure, an embodiment of the present utility model provides a range hood, which includes a housing 100, a filter screen 200 and a clamping structure. An oil suction opening 101 is provided on the housing 100, and the filter screen 200 is arranged at the oil suction opening 101 for filtering the oil fume entering the housing 100; the filter screen 200 is connected to the housing 100 through the clamping structure. In this embodiment, two clamping structures are used to connect the filter screen 200 and the housing 100. Of course, one or more than two clamping structures can also be used, and the specific selection is based on the structural form of the range hood, and it is not limited thereto.

[0040] Referring to Figures 1 to 3 and Figures 6 to 7 , the clamping structure includes a fixed buckle 11 and a buckle 12. The fixed buckle 11 is used to connect with one of the filter screen 200 and the housing 100. The fixed buckle 11 is a rotating body, and a limiting portion 111 is provided on the outer wall of the fixed buckle 11; the buckle 12 includes a mounting portion 121 and a concave portion 122 provided on the mounting portion 121. The mounting portion 121 is used to connect with the other of the filter screen 200 and the housing 100. An elastic buckle 123 is provided on the inner wall of the concave portion 122; the fixed buckle 11 can be inserted into the concave portion 122, and the limiting portion 111 can be clamped with the elastic buckle 123. In this embodiment, the fixed buckle 11 is installed on the filter screen 200, and the mounting portion 121 is installed on the housing 100. In other embodiments, it can also be that the fixed buckle 11 is installed on the housing 100, and the mounting portion 121 is installed on the filter screen 200.

[0041] Combined with Figures 10 to 11 As shown in the figure, the elastic buckle 123 has elasticity. The elastic buckle 123 can undergo elastic deformation under the action of an external force and can return to its initial state after the external force disappears. When the fixed buckle 11 is inserted into the concave portion 122, under the action of the insertion force, the limiting portion 111 drives the elastic buckle 123 to undergo elastic deformation to cross the elastic buckle 123. After the limiting portion 111 crosses the elastic buckle 123, the elastic buckle 123 returns to its initial state, and the limiting portion 111 and the elastic buckle 123 form a clamping connection; when the fixed buckle 11 is pulled out from the concave portion 122, under the action of the pulling force, the limiting portion 111 drives the elastic buckle 123 to undergo elastic deformation to cross the elastic buckle 123. After the limiting portion 111 crosses the elastic buckle 123, the elastic buckle 123 returns to its initial state, and the limiting portion 111 and the elastic buckle 123 are disengaged. Through the cooperation of the fixed buckle 11 and the buckle 12, the clamping connection between the filter screen 200 and the housing 100 is realized, and thus the rapid disassembly and installation of the filter screen 200 are realized; moreover, the structures of the fixed buckle 11 and the buckle 12 are relatively simple, and the cost is low; and the fixed buckle 11 is a rotating body, and there is no limit to the installation direction, which simplifies the installation process of the fixed buckle 11.

[0042] Specifically, referring to Figure 2 and Figure 3, the fixing buckle 11 is a columnar body, and the limiting portion 111 protrudes from the outer peripheral wall of the fixing buckle 11. The diameter of the fixing buckle 11 gradually decreases from the end connecting the filter net 200 to the side of the limiting portion 111 facing the filter net 200, that is, the fixing buckle 11 forms a necking at the adjacent position of the limiting portion 111. When the fixing buckle 11 is inserted into the concave portion 122, after the limiting portion 111 passes over the elastic buckle 123, the elastic buckle 123 is snapped onto the necking position of the fixing buckle 11. The necking on the fixing buckle 11 provides a snapping space for the elastic buckle 123, making the snapping between the elastic buckle 123 and the limiting portion 111 more stable.

[0043] Referring to Figure 3 , a threaded hole 112 is provided on the fixing buckle 11, and a stud 201 is provided on the filter net 200. The fixing buckle 11 is threadedly connected to the stud 201 through the threaded hole 112, and the connection method is simple and reliable. Further, a tool hole 113 is provided on the fixing buckle 11, and the tool hole 113 is used to cooperate with a tightening tool to install the fixing buckle 11 more firmly. Optionally, the tool hole 113 is an internal hexagonal hole, and the tightening tool is an internal hexagonal tightening tool. Of course, the connection form between the fixing buckle 11 and the filter net 200 is not limited to this embodiment, and the two can also be connected in a snap-fit or through a fastener connection or other forms.

[0044] Referring to Figure 4 and Figure 5 , the buckle 12 is installed on the inner side of the housing 100. A through hole 102 is provided on the housing 100, and the fixing buckle 11 can be inserted into the concave portion 122 of the buckle 12 through the through hole 102. Referring to Figures 6 to 9 , the cross-section of the concave portion 122 is U-shaped. The installation portion 121 is located at the top opening end of the concave portion 122. The installation portion 121 includes two installation plates 1211, and the two installation plates 1211 are respectively connected to the tops of the two opposite side walls of the concave portion 122. A first installation hole 103 is provided on the housing 100, and a second installation hole 1211a is provided on the installation plate 1211. The housing 100 and the buckle 12 are connected through the first installation hole 103 and the second installation hole 1211a. The elastic buckle 123 is provided on the two opposite side walls of the concave portion 122, and an avoidance hole 1221 for the elastic deformation of the elastic buckle 123 is provided on the side wall of the concave portion 122.

[0045] Continue to refer to Figures 6 to 9The snap button 123 includes a first elastic plate 1231 and a second elastic plate 1232 that are distributed at an angle. The end of the first elastic plate 1231 that is away from the second elastic plate 1232 is connected to the side wall of the concave portion 122. The end of the second elastic plate 1232 that is away from the first elastic plate 1231 is a free end. The connecting ends of the first elastic plate 1231 and the second elastic plate 1232 form a clamping portion 1233, and the clamping portion 1233 is clamped and matched with the limiting portion 111. When the fixing buckle 11 is inserted into or pulled out of the concave portion 122, the limiting portion 111 presses against the clamping portion 1233, and the snap button 123 is elastically deformed as a whole. The free end of the snap button 123 extends into the avoidance hole 1221 of the corresponding side wall. When the limiting portion 111 passes over the clamping portion 1233, the snap button 123 returns to the initial state, and the clamping portion 1233 is clamped or disengaged from the limiting portion 111.

[0046] The spring buckle 123 is provided with an elastic force adjustment structure, and the elastic force adjustment structure is used to adjust the elastic force of the spring buckle 123. Figure 7 The elastic force adjustment structure is an elastic force adjustment hole 1234, which is opened at one end of the spring buckle 123 connected to the side wall. The elastic force adjustment hole 1234 is used to adjust the elastic force by removing material to reduce the strength of the bending part of the spring buckle 123. Figure 8 , assuming that the width of one end of the side wall of the spring buckle 123 connected to the concave portion 122 is D, and the width of the elastic force adjustment hole 1234 is C, then C can only be adjusted within the range of 0-0.8D. Taking the elastic force state when the elastic force adjustment hole 1234 is not provided (i.e., C=0) as a reference, at this time, the elastic force of the spring buckle 123 is the largest, and by changing the size of the elastic force adjustment hole 1234 from small to large (i.e., C increases from 0 to 0.8D), the elastic force of the spring buckle 123 changes from large to small. By setting the range of C to 0-0.8D, it is possible to ensure that the spring buckle 123 maintains an effective elastic force state, and to avoid the spring buckle 123 losing its elastic effect due to too low elasticity. In some embodiments, referring to Figure 9 The elastic force adjustment structure is an elastic force adjustment rib 1235, which is arranged at one end of the spring buckle 123 connected to the side wall. The elastic force adjustment rib 1235 is adjusted by increasing the strength of the bending portion by adding reinforcing ribs. The elastic force state when the elastic force adjustment rib 1235 is not increased is taken as a reference. When the number of the elastic force adjustment rib 1235 changes from small to large, the elastic force of the spring buckle 123 changes from large to small.

[0047] In this embodiment, the buckle 12 is made of a thin plate-like elastic metal material, which has low cost and good economic benefits.

[0048] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A snap - connection structure for connecting a filter net (200) and a casing (100) of an oil fume absorber, characterized in that, Comprising: A fixing buckle (11) for connecting with one of the filter net (200) and the machine housing (100), the fixing buckle (11) being a rotary body, and a limiting portion (111) being provided on the outer wall of the fixing buckle (11); A snap buckle (12), including a mounting portion (121) and a concave portion (122) provided on the mounting portion (121), the mounting portion (121) being used for connecting with the other of the filter net (200) and the machine housing (100), and a spring buckle (123) being provided on the inner wall of the concave portion (122); The fixing buckle (11) can be inserted into the concave portion (122), and the limiting portion (111) can be snap-connected with the spring buckle (123).

2. The snap-fit structure according to claim 1, wherein, A threaded hole (112) is provided on the fixing buckle (11), a stud (201) is provided on the filter net (200), and the fixing buckle (11) is threadedly connected with the stud (201) through the threaded hole (112).

3. The snap connection structure according to claim 2, wherein A tool hole (113) is provided on the fixing buckle (11), and the tool hole (113) is used for cooperating with a tightening tool.

4. The snap-fit structure according to claim 1, wherein The cross-section of the concave portion (122) is U-shaped, the mounting portion (121) is located at the top opening end of the concave portion (122), and the spring buckle (123) is provided on two opposite side walls of the concave portion (122).

5. The snap-fit structure according to claim 4, wherein An avoidance hole (1221) for the spring buckle (123) to undergo elastic deformation is provided on the side wall of the concave portion (122).

6. The snap-fit structure according to any one of claims 1-5, characterized in that, One end of the spring buckle (123) is connected with the side wall of the concave portion (122), the other end of the spring buckle (123) is a free end, and an elastic force adjusting structure is provided on the spring buckle (123), and the elastic force adjusting structure is used for adjusting the elastic force of the spring buckle (123).

7. The snap connection structure according to claim 6, wherein The elastic force adjusting structure is an elastic force adjusting hole (1234), the elastic force adjusting hole (1234) is opened at one end of the spring buckle (123) connecting the side wall of the concave portion (122), and the elastic force of the spring buckle (123) can be adjusted through the opening size of the elastic force adjusting hole (1234).

8. The snap connection structure according to claim 7, characterized in that, The width of one end of the spring buckle (123) connecting the side wall of the concave portion (122) is D, and the width of the elastic force adjusting hole (1234) is C, then C = 0 - 0.8D.

9. The snap-fit structure according to claim 6, wherein The elastic force adjusting structure is an elastic force adjusting rib (1235), the elastic force adjusting rib (1235) is provided at one end of the spring buckle (123) connecting the side wall of the concave portion (122), and the elastic force of the spring buckle (123) can be adjusted through the number of the elastic force adjusting ribs (1235) provided.

10. Range hood, characterized in that, Comprising a machine housing (100), a filter net (200) and the snap connection structure according to any one of claims 1 - 9, the fixing buckle (11) is installed on one of the filter net (200) and the machine housing (100), the snap buckle (12) is installed on the other of the filter net (200) and the machine housing (100), and the fixing buckle (11) is snap-connected with the snap buckle (12).

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