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 shell of the range hood, the clamping structure comprises a fixing buckle and a buckle, the fixing buckle comprises a first mounting part and a convex part arranged on the first mounting part, the first mounting part is used for being connected with the filter screen, and a limiting part is arranged on the outer wall of the convex part; the buckle comprises a second mounting part and a concave part arranged on the second mounting part, the second mounting part is used for being connected with the shell, and an elastic buckle is arranged on the inner wall of the concave part; the convex part can be inserted into the concave part, and the limiting part can be clamped with the elastic buckle. 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; and the fixing buckle and the clamping buckle are simple in structure and low in cost.

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 from the stove combustion and the oil smoke generated during the cooking process that is harmful to the human body and discharge it outdoors. A filter is set at the smoke outlet of the range hood as a barrier to block the oil smoke and separate the oil smoke. After using it for a period of time, oil stains will adhere to the filter, and the filter needs to be removed from the smoke outlet for cleaning.

[0003] Currently, the main ways to fix the filter are: 1. Screw fixing, which has a simple structure and low cost, but requires tools for disassembly and assembly; 2. Hardware buckle fixing, which does not require tools for disassembly and assembly, but has a complex structure and high cost; 3. Magnetic fixing, which has a simple structure and does not require tools for disassembly and assembly, but is expensive. Utility Model Content

[0004] The utility model aims to provide a clamping structure and a range hood, which can realize quick disassembly and assembly, and have a simple structure and low cost.

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

[0006] The clamping structure is used to connect the filter screen and the housing of the range hood, including:

[0007] A fixing buckle, comprising a first mounting portion and a convex portion arranged on the first mounting portion, wherein the first mounting portion is used to connect with the filter screen, and an outer wall of the convex portion is provided with a limiting portion;

[0008] A buckle, comprising a second mounting portion and a concave portion arranged on the second mounting portion, wherein the second mounting portion is used to be connected to the housing, and an inner wall of the concave portion is provided with a spring buckle;

[0009] The convex portion can be inserted into the concave portion, and the limiting portion can be engaged with the spring buckle.

[0010] As a preferred technical solution of the clip-on structure, the cross-section of the convex portion is U-shaped, the first mounting portion is located at the top open end of the convex portion, the distance between the two opposite side walls of the convex portion gradually decreases from the bottom closed end to the top open end, and the limiting portion is arranged at the bottom ends of the two opposite side walls of the convex portion.

[0011] As a preferred technical solution of the snap-fit ​​structure, the bottom wall of the convex portion forms a conical guide portion, and the guide portion is used to guide the convex portion when it is inserted into the concave portion.

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

[0013] As a preferred technical solution of the snap-fit ​​structure, a side wall of the concave portion is provided with an escape hole for the elastic buckle to undergo elastic deformation.

[0014] As a preferred technical solution of the snap-fit ​​structure, one end of the spring buckle is connected to the side wall of the concave portion, and the other end of the spring buckle is a free end. An elastic force adjustment structure is provided on the spring buckle, and the elastic force adjustment structure is used to adjust the elastic force of the spring buckle.

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

[0016] As a preferred technical solution of the snap-on structure, the elastic force adjustment structure is an elastic force adjustment rib, and the elastic force adjustment rib is arranged at one end of the side wall of the spring buckle connected to the concave portion, and the elastic force of the spring buckle can be adjusted by the number of the elastic force adjustment ribs.

[0017] As a preferred technical solution for the snap-on structure, the bottom wall of the convex portion is provided with a first connecting hole, and the bottom wall of the concave portion is provided with a second connecting hole, and the fastener can fasten the fixing buckle and the snap buckle through the first connecting hole and the second connecting hole.

[0018] As a preferred technical solution of the clamping structure, the fastener is a screw, the first connecting hole is a through hole, the second connecting hole is a threaded hole, and the screw can be threadedly connected to the threaded hole after passing through the through hole.

[0019] As a preferred technical solution of the snap-fit ​​structure, the fixing buckle and the snap buckle are both made of thin plate-like elastic metal material.

[0020] A range hood comprises a casing, a filter and a snap-on structure as described in any of the above schemes, wherein the fixing buckle is installed on the filter, the snap-on is installed on the casing, and the fixing buckle is snap-connected with the snap-on.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides a clamping structure for connecting the filter screen and the housing of the range hood, the clamping structure comprises a fixing buckle and a clamping buckle, the fixing buckle comprises a first mounting portion and a convex portion arranged on the first mounting portion, the first mounting portion is used to connect with the filter screen, and the outer wall of the convex portion is provided with a limiting portion; the clamping buckle comprises a second mounting portion and a concave portion arranged on the second mounting portion, the second mounting portion is used to connect with the housing, and the inner wall of the concave portion is provided with a spring buckle; the convex portion can be inserted into the concave portion, and the limiting portion can be clamped with the spring buckle. The clamping connection between the filter screen and the housing is realized by the matching of the fixing buckle and the clamping buckle, thereby realizing the rapid disassembly and installation of the filter screen; and the structures of the fixing buckle and the clamping buckle are relatively simple and the cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The schematic diagram of the exploded structure of the range hood provided by the embodiment of the utility model is Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the range hood provided by the embodiment of the utility model. Figure 1 ;

[0025] Figure 3 yes Figure 2 Middle AA section view;

[0026] Figure 4 It is a schematic diagram of the exploded structure of the clamping structure provided by the embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the clamping structure provided by an embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the fixing buckle involved in the embodiment of the utility model. Figure 1 ;

[0029] Figure 7 This is a schematic diagram of the structure of the fixing buckle involved in the embodiment of the utility model. Figure 2 ;

[0030] Figure 8 This is a schematic diagram of the structure of the buckle involved in the embodiment of the utility model Figure 1 ;

[0031] Fig. 9 This is a schematic diagram of the structure of the buckle involved in the embodiment of the utility model Figure 2 ;

[0032] Fig.10 This is a schematic diagram of the structure of the buckle involved in the embodiment of the utility model Figure 3 ;

[0033] Fig.11The schematic diagram of the exploded structure of the range hood provided by the embodiment of the utility model is Figure 2 ;

[0034] Fig.12 This is a schematic diagram of the structure of the range hood provided by the embodiment of the utility model. Figure 2 ;

[0035] Fig.13 yes Fig.12 Middle BB section view.

[0036] In the figure:

[0037] 100, housing; 200, filter;

[0038] 10. Snap-fit ​​structure; 11. Fixing buckle; 111. First mounting portion; 1111. First mounting plate; 112. Protruding portion; 1121. Limiting portion; 1122. Guide portion; 1123. First connecting hole; 12. Snap-fit ​​structure; 121. Second mounting portion; 1211. Second mounting plate; 122. Concave portion; 1221. Avoidance hole; 1222. Second connecting hole; 123. Spring buckle; 1231. First elastic plate; 1232. Second elastic plate; 1233. Snap-fit ​​portion; 1234. Elastic force adjustment hole; 1235. Elastic force adjustment rib; 13. Fastener. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] like Figures 1 to 13 As shown, the embodiment of the utility model provides a range hood, including a housing 100, a filter 200 and a clamping structure 10. The housing 100 is provided with a smoke suction port, and the filter 200 is arranged at the smoke suction port to filter the smoke entering the housing 100; the filter 200 is connected to the housing 100 through the clamping structure 10. In this embodiment, the filter 200 is connected to the housing 100 by two clamping structures 10, and of course one or more than two can also be used, which is selected according to the structural form of the range hood, but is not limited thereto.

[0044] In this embodiment, refer to Figure 4 and Figure 5 The snap-fit ​​structure 10 includes a fixing buckle 11 and a buckle 12. The fixing buckle 11 includes a first mounting portion 111 and a convex portion 112 arranged on the first mounting portion 111. The first mounting portion 111 is used to connect with the filter 200, and the outer wall of the convex portion 112 is provided with a limiting portion 1121; the buckle 12 includes a second mounting portion 121 and a concave portion 122 arranged on the second mounting portion 121. The second mounting portion 121 is used to connect with the casing 100, and the inner wall of the concave portion 122 is provided with a spring buckle 123; the convex portion 112 can be inserted into the concave portion 122, and the limiting portion 1121 can be snapped with the spring buckle 123.

[0045] The snap button 123 is elastic, and can be elastically deformed under the action of an external force, and can return to the initial state after the external force disappears. When the concave portion 122 is inserted into the convex portion 112, under the action of the insertion force, the limiting portion 1121 drives the snap button 123 to be elastically deformed to pass over the snap button 123, and after the limiting portion 1121 passes over the snap button 123, the snap button 123 returns to the initial state, and the limiting portion 1121 and the snap button 123 form a clamping connection; when the concave portion 122 is pulled out of the convex portion 112, under the action of the pulling force, the limiting portion 1121 drives the snap button 123 to be elastically deformed to pass over the snap button 123, and after the limiting portion 1121 passes over the snap button 123, the snap button 123 returns to the initial state, and the limiting portion 1121 is separated from the snap button 123. The fixing buckle 11 and the buckle 12 cooperate to realize the snap connection between the filter 200 and the housing 100, thereby realizing the quick disassembly and installation of the filter 200; and the structures of the fixing buckle 11 and the buckle 12 are relatively simple and the cost is relatively low.

[0046] Reference Figure 6 and Figure 7 The cross section of the convex portion 112 is U-shaped, the first mounting portion 111 is located at the top open end of the convex portion 112, and the first mounting portion 111 includes two first mounting plates 1111, which are respectively connected to the top ends of the two opposite side walls of the convex portion 112; the distance between the two opposite side walls of the convex portion 112 gradually decreases from the bottom closed end to the top open end, and the limiting portion 1121 is arranged at the bottom ends of the two opposite side walls of the convex portion 112. By setting the limiting portion 1121, it can cooperate with the spring buckle 123 to form a snap connection, and by setting the distance between the two opposite side walls of the convex portion 112 to gradually decrease from the bottom closed end to the top open end, that is, the convex portion 112 is closed, it can provide a snap connection space for the spring buckle 123, so that the snap connection between the spring buckle 123 and the limiting portion 1121 is more stable.

[0047] The bottom wall of the convex portion 112 forms a tapered guide portion 1122. The guide portion 1122 includes two guide surfaces, which are symmetrically arranged relative to the center plane of the convex portion 112. The guide portion 1122 is used to guide the convex portion 112 when it is inserted into the concave portion 122, so that the convex portion 112 can be smoothly inserted into the concave portion 122.

[0048] Reference Figure 8 and Fig. 9The cross-section of the concave portion 122 is also U-shaped. The second mounting portion 121 is located at the top open end of the concave portion 122. The second mounting portion 121 includes two second mounting plates 1211, and the two second mounting plates 1211 are respectively connected to the top ends of the two opposite side walls of the concave portion 122; the spring buckle 123 is arranged on the two opposite side walls of the concave portion 122, and the side wall of the concave portion 122 is provided with an avoidance hole 1221 for the spring buckle 123 to undergo elastic deformation.

[0049] The spring buckle 123 includes a first elastic plate 1231 and a second elastic plate 1232 which are distributed at an angle. The end of the first elastic plate 1231 which 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 which 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, which is clamped and matched with the limiting portion 1121. When the convex portion 112 is inserted into or pulled out of the concave portion 122, the limiting portion 1121 presses against the clamping portion 1233, the spring buckle 123 as a whole undergoes elastic deformation, and the free end of the spring buckle 123 extends into the avoidance hole 1221 of the corresponding side wall. When the convex portion 112 is inserted into or pulled out to the limiting portion 1121 beyond the clamping portion 1233, the spring buckle 123 returns to its initial state, and the clamping portion 1233 is clamped or disengaged from the limiting portion 1121.

[0050] 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. Fig. 9 , the elastic force adjustment structure is an elastic force adjustment hole 1234, and the elastic force adjustment hole 1234 is provided at one end of the spring buckle 123 connected to the side wall. The elastic force adjustment hole 1234 adjusts the elastic force by removing material to reduce the strength of the bending portion of the spring buckle 123. The elastic force state when the elastic force adjustment hole 1234 is not provided is taken as a reference. As the size of the elastic force adjustment hole 1234 changes from small to large, the elastic force of the spring buckle 123 changes from large to small. It should be noted that, 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. In some embodiments, referring to Fig.10 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.

[0051] Further, refer to Figure 4 and Figure 5The bottom wall of the convex portion 112 is provided with a first connection hole 1123, and the bottom wall of the concave portion 122 is provided with a second connection hole 1222. The fastener 13 can fasten the fixing buckle 11 and the buckle 12 through the first connection hole 1123 and the second connection hole 1222. In this embodiment, the fastener 13 is a screw, the first connection hole 1123 is a through hole, and the second connection hole 1222 is a threaded hole. After passing through the through hole, the screw can be threadedly connected to the threaded hole, and the head end of the screw is tightly pressed against the filter 200.

[0052] The clamping structure 10 provided in this embodiment can realize two fixing modes, namely quick release and quick release locking. Figures 1 to 3 When the fastener 13 is not provided to connect the fixing buckle 11 and the buckle 12, the fixing method implemented by the snap-fit ​​structure 10 is quick release; Figures 10 to 13 When the fastener 13 is provided to connect the fixing buckle 11 and the buckle 12, the fixing method implemented by the clamping structure 10 is quick release locking. When the filter screen 200 needs to be pre-fixed or there is a requirement for installation, the quick release locking fixing method is adopted. Otherwise, the quick release fixing method is adopted.

[0053] In this embodiment, the fixing buckle 11 and the buckle 12 are both made of thin plate elastic metal material, which has low cost and good economic benefits.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A clamping structure for connecting a filter screen (200) and a housing (100) of a range hood, characterized in that: include: A fixing buckle (11), comprising a first mounting portion (111) and a convex portion (112) arranged on the first mounting portion (111), wherein the first mounting portion (111) is used to be connected to the filter screen (200), and an outer wall of the convex portion (112) is provided with a limiting portion (1121); The buckle (12) comprises a second mounting portion (121) and a concave portion (122) arranged on the second mounting portion (121), wherein the second mounting portion (121) is used to be connected to the housing (100), and an elastic buckle (123) is arranged on the inner wall of the concave portion (122); The convex portion (112) can be inserted into the concave portion (122), and the limiting portion (1121) can be snap-fitted with the spring buckle (123).

2. The clamping structure according to claim 1, characterized in that: The cross section of the convex portion (112) is U-shaped, the first mounting portion (111) is located at the top open end of the convex portion (112), the distance between the two opposite side walls of the convex portion (112) gradually decreases from the bottom closed end to the top open end, and the limiting portion (1121) is arranged at the bottom ends of the two opposite side walls of the convex portion (112).

3. The clamping structure according to claim 2, characterized in that: The bottom wall of the convex portion (112) forms a tapered guide portion (1122), and the guide portion (1122) is used to guide the convex portion (112) when it is inserted into the concave portion (122).

4. The clamping structure according to claim 1, characterized in that: The cross section of the concave portion (122) is U-shaped, the second mounting portion (121) is located at the top opening end of the concave portion (122), and the spring buckle (123) is arranged on two opposite side walls of the concave portion (122).

5. The clamping structure according to claim 4, characterized in that: The side wall of the concave portion (122) is provided with an escape hole (1221) for the elastic buckle (123) to undergo elastic deformation.

6. The clamping structure according to claim 1, characterized in that: One end of the spring buckle (123) is connected to the side wall of the concave portion (122), and the other end of the spring buckle (123) is a free end. An elastic force adjustment structure is provided on the spring buckle (123), and the elastic force adjustment structure is used to adjust the elastic force of the spring buckle (123).

7. The clamping structure according to claim 6, characterized in that: The elastic force adjustment structure is an elastic force adjustment hole (1234), and the elastic force adjustment hole (1234) is opened at one end of the side wall of the spring buckle (123) connected to the concave portion (122), and the elastic force of the spring buckle (123) can be adjusted by the opening size of the elastic force adjustment hole (1234).

8. The clamping structure according to claim 6, characterized in that: The elastic force adjustment structure is an elastic force adjustment rib (1235), and the elastic force adjustment rib (1235) is arranged at one end of the spring buckle (123) connected to the side wall of the concave portion (122), and the elastic force of the spring buckle (123) can be adjusted by the number of the elastic force adjustment ribs (1235) arranged.

9. The clamping structure according to any one of claims 1 to 8, characterized in that: The bottom wall of the convex portion (112) is provided with a first connection hole (1123), and the bottom wall of the concave portion (122) is provided with a second connection hole (1222). The fastener (13) can fasten the fixing buckle (11) and the buckle (12) together through the first connection hole (1123) and the second connection hole (1222).

10. The clamping structure according to claim 9, characterized in that: The fastener (13) is a screw, the first connection hole (1123) is a through hole, the second connection hole (1222) is a threaded hole, and the screw can be threadedly connected to the threaded hole after passing through the through hole.

11. The clamping structure according to any one of claims 1 to 8, characterized in that: The fixing buckle (11) and the buckle (12) are both made of thin plate-like elastic metal material.

12. A range hood, characterized in that: It comprises a housing (100), a filter (200) and a snap-fit ​​structure (10) as described in any one of claims 1 to 11, wherein the fixing buckle (11) is installed on the filter (200), the snap-fit ​​buckle (12) is installed on the housing (100), and the fixing buckle (11) is snap-fitted to the snap-fit ​​buckle (12).

Images