Range hood

Abstract

The utility model provides a kind of range hood, it relates to kitchen household electrical appliances technical field, range hood mainly includes range hood body, decorative cover, positioning gear and locking piece. Range hood body upper end is provided fan case;Decorative cover is covered in the outside of fan case, decorative cover has the positioning guide rail of up and down extension, decorative cover can be moved along the extension direction of positioning guide rail relative to fan case;Positioning gear is installed in fan case, positioning gear is engaged with positioning guide rail cooperation and can rotate with the movement of positioning guide rail;Locking piece is set in one side of positioning gear and is fixed in fan case, locking piece can be inserted into the tooth slot of positioning gear to fix the relative position of decorative cover and fan case both. By the embodiment provided in the present application, cancel conventional screw or hook, need not to punch when installing and avoid wall surface damage;Only need to move decorative cover, just can be adapted to different height's ceiling, it is easy to operate, efficient and convenient.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology

[0002] With the widespread use of kitchen appliances, the decorative cover of the range hood, as an important component that balances functionality and aesthetics, has undergone several technological iterations in its fixing structure. Hooks or screws are commonly used for fixing; however, this method requires pre-drilling holes in the wall and installing expansion screws, which is not only complex and inefficient but can also damage the integrity of the wall surface. Utility Model Content

[0003] This application addresses the shortcomings of existing methods by providing a range hood that solves the technical problem that the decorative cover of a fixed range hood requires pre-drilling holes in the wall and installing expansion screws, which is complex, inefficient, and may even damage the integrity of the wall surface.

[0004] This application provides a range hood, including a range hood body, a decorative cover, a positioning gear, and a locking component. A fan housing is disposed at the upper end of the range hood body; the decorative cover is located on the outside of the fan housing, and the decorative cover has vertically extending positioning guide rails, allowing it to move relative to the fan housing along the extending direction of the positioning guide rails; the positioning gear is mounted on the fan housing, engaging with the positioning guide rails and rotating as the positioning guide rails move; the locking component is disposed on one side of the positioning gear and fixed to the fan housing, and can engage with the tooth groove of the positioning gear to fix the relative positions of the decorative cover and the fan housing.

[0005] As an optional implementation, the range hood further includes a mounting base, which is installed on the fan housing. The mounting base includes a first side plate and a second side plate connected at an angle. The positioning gear and the locking member are both mounted on the second side plate via a rotating shaft. The first side plate has an opening, through which a portion of the teeth of the positioning gear passes and engages with the positioning guide rail.

[0006] As an optional implementation, the fan housing includes a front cover and a rear plate. The front cover and the rear plate are connected to form a box-shaped structure. The front cover has a left side wall, a front side wall, and a right side wall. The rear ends of the left side wall and the right side wall are bent inward to form two rear side walls. The rear plate is connected between the two rear side walls. The first side plate is installed on the rear side wall. The teeth of the positioning gear passing through the opening pass through the rear side wall. The decorative cover is disposed on the outside of the front cover. The decorative cover includes a left shell wall, a front shell wall, and a right shell wall. The rear ends of the left shell wall and the right shell wall are bent inward to form two rear shell walls. The positioning guide rail is formed on the rear shell wall. A through hole is opened on the portion of the rear shell wall corresponding to the opening. The teeth of the positioning gear passing through the opening pass through the through hole.

[0007] As an optional implementation, the mounting base further includes a base plate, which is supported on the bottom of the first side plate and the second side plate; an inwardly protruding support platform is formed on the top inner side of the left side wall and the right side wall; the base plate is mounted on the rear end of the support platform.

[0008] As an optional implementation, both the base plate and the first side plate have mounting holes, and the mounting base is connected to the fan housing by bolts passing through the mounting holes and / or snap-fitting.

[0009] As an optional implementation, the decorative cover has a plurality of snap-fit ​​holes arranged in a vertically extending direction to form the positioning guide rail.

[0010] As an optional implementation, the range hood also includes a rack mounted on the decorative cover and extending in the vertical direction to serve as the positioning guide rail.

[0011] As an optional implementation, the range hood further includes an elastic element connected to both the mounting base and the locking element. The elastic element applies force to the locking element to engage with the tooth groove of the positioning gear.

[0012] As an optional implementation, the positioning gear is a ratchet.

[0013] As an optional implementation, the locking element is a ratchet.

[0014] This application provides a range hood, and the technical solution provided by the embodiments of this application brings at least the following beneficial effects:

[0015] During the movement of the decorative cover relative to the range hood body, the positioning guide rail drives the positioning gear to rotate. During this rotation, the moving positioning gear engages with the positioning guide rail. Once the decorative cover reaches the appropriate position, a locking element engages with the groove of the positioning gear, fixing the relative positions of the decorative cover and the range hood body and keeping the decorative cover in the correct position. This fixing method eliminates traditional screws or hooks, requiring no drilling during installation and avoiding wall damage. Simply moving the decorative cover allows it to adapt to ceilings of different heights, making operation simple, efficient, and convenient.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of a range hood provided in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the structure of a range hood provided in another embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the exploded structure of a range hood provided in another embodiment of this application;

[0021] Figure 4 This application provides a schematic diagram illustrating the connection relationship between a mounting base, a positioning gear, and a locking component in a range hood.

[0022] Figure 5 A schematic diagram illustrating the connection relationship between a mounting base, a positioning gear, and a locking element in a range hood, provided in another embodiment of this application;

[0023] Figure 6 A schematic diagram illustrating the connection relationship between a mounting base, a positioning gear, and a locking element in a range hood, provided in yet another embodiment of this application;

[0024] Figure 7 A schematic diagram showing the positional relationship between the support platform and the through hole of the range hood body in an embodiment of this application;

[0025] Figure 8 A schematic diagram illustrating the connection relationship between the range hood body, decorative cover, positioning gear, locking component, and mounting base in an embodiment of this application;

[0026] Figure 9 for Figure 8 A schematic diagram of the longitudinal cross-sectional structure.

[0027] Figure labels and corresponding explanations:

[0028] 1: Fan housing; 11: Front cover; 111: Left side wall; 112: Front side wall; 113: Right side wall; 114: Rear side wall; 12: Rear panel; 13: Through hole; 14: Support platform;

[0029] 2: Decorative cover; 21: Positioning guide rail; 22: Left shell wall; 23: Front shell wall; 24: Right shell wall; 25: Rear shell wall;

[0030] 3: Positioning gear;

[0031] 4: Locking components;

[0032] 5: Mounting base; 51: Base plate; 52: First side plate; 53: Second side plate; 54: Opening; 55: Mounting hole. Detailed Implementation

[0033] This application is described in detail below. Examples of embodiments of this application are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of this application are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0034] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, elements, and / or components, but does not exclude the presence or addition of one or more other features, elements, components, and / or groups thereof. The term “and / or” as used herein includes all or any units and all combinations thereof of one or more associated listed items.

[0035] like Figure 1-9 As shown in the figure, this application embodiment provides a range hood, which mainly includes a range hood body, a decorative cover 2, a positioning gear 3, and a locking member 4. A fan housing 1 is provided at the upper end of the range hood body; the decorative cover 2 is installed on the outside of the fan housing 1, and the decorative cover 2 has vertically extending positioning guide rails 21, allowing the decorative cover 2 to move relative to the fan housing 1 along the extending direction of the positioning guide rails 21; the positioning gear 3 is installed on the fan housing 1, engaging with the positioning guide rails 21 and rotating with the movement of the positioning guide rails 21; the locking member 4 is provided on one side of the positioning gear 3 and fixed to the fan housing 1, and the locking member 4 can engage with the tooth groove of the positioning gear 3 to fix the relative positions of the decorative cover 2 and the fan housing 1.

[0036] The range hood provided in this embodiment allows the decorative cover 2 to move upwards relative to the fan housing 1 and reach a suitable position. During the movement of the decorative cover 2 relative to the fan housing 1, the positioning guide rail 21 drives the positioning gear 3 to rotate. During the rotation of the moving positioning gear, the moving positioning gear engages with the positioning guide rail 21. After the decorative cover 2 moves to the appropriate position, the locking member 4 engages with the tooth groove of the positioning gear 3 to fix the relative positions of the decorative cover 2 and the fan housing 1, keeping the decorative cover 2 in the appropriate position. This fixing method eliminates traditional screws or hooks, requires no drilling during installation, and avoids damage to the wall. Simply moving the decorative cover 2 is sufficient to adapt to ceilings of different heights, making the operation simple, efficient, and convenient.

[0037] like Figure 4-9 As shown, as an optional implementation, the range hood also includes a mounting base 5, which is installed on the fan housing 1. The mounting base 5 includes a first side plate 52 and a second side plate 53 connected at an angle. The positioning gear 3 and the locking member 4 are both installed on the second side plate 53 via a rotating shaft. The first side plate 52 has an opening 54, through which some of the teeth of the positioning gear 3 pass and engage with the positioning guide rail 21.

[0038] Based on the aforementioned embodiments, in this embodiment, the first side plate 52 and the second side plate 53 are perpendicularly connected, and both the first side plate 52 and the second side plate 53 are vertically arranged. The first side plate 52 faces rearward, and the second side plate 53 can be located to the left or right of the first side plate 52. The second side plate 53 and the positioning gear 3 are both vertically arranged. The opening 54 is opened along the thickness direction of the first side plate 52, that is, the opening 54 is through in the front-rear direction. The opening 54 is a rectangular hole, and its length direction is arranged in the vertical direction, so that the positioning gear 3 is adapted to the opening 54. Whether in the rotation stage or the stationary stage, part of the teeth of the positioning gear 3 passes through the opening 54, that is, the first side plate 52 divides the positioning gear 3 into two parts, one part is located on one side of the first side plate 52, and the other part is located on the other side of the first side plate 52.

[0039] like Figure 1-3As shown in Figures 7-9, in one optional embodiment, the fan housing 1 includes a front cover 11 and a rear plate 12. The front cover 11 and the rear plate 12 are connected and enclosed to form a box-shaped structure. The front cover 11 has a left side wall 111, a front side wall 112, and a right side wall 113. The rear ends of the left side wall 111 and the right side wall 113 are bent inward to form two rear side walls 114. The rear plate 12 is connected between the two rear side walls 114. The first side plate 52 is installed on the rear side wall 114. The teeth of the positioning gear 3 passing through the opening 54 pass through the rear sidewall 114; the decorative cover 2 is installed on the outside of the front cover 11. The decorative cover 2 includes a left shell wall 22, a front shell wall 23 and a right shell wall 24. The rear ends of the left shell wall 22 and the right shell wall 24 are bent inward to form two rear shell walls 25. A positioning guide rail 21 is formed on the rear shell wall 25. A through hole 13 is opened on the part of the rear shell wall 25 corresponding to the opening 54. The teeth of the positioning gear 3 passing through the opening 54 pass through the through hole 13.

[0040] Based on the aforementioned embodiments, in this embodiment, the two ends of the rear plate 12 are fixedly connected to the two rear side walls 114. The left side wall 111, the front side wall 112, the right side wall 113 and the two rear side walls 114 surround and form the front cover 11, which protrudes upward from the rear plate 12;

[0041] The decorative cover 2 has a semi-enclosed structure, running vertically through it, and has an opening on its rear side. The left shell wall 22 corresponds to the left side wall 111, the front shell wall 23 corresponds to the front side wall 112, the right shell wall 24 corresponds to the right side wall 113, and the two rear shell walls 25 correspond to the two rear side walls 114 respectively. This ensures that the mounting base 5, the positioning gear 3, and the rear side walls 114 are in a one-to-one correspondence and are distributed left and right, guaranteeing that the decorative cover 2 and the fan housing 1 are subjected to uniform force in the left and right directions and that the left and right sides move synchronously. Both the opening 54 and the through hole 13 are through holes and are opened along the front-to-back direction. The opening 54 and the through hole 13 at least partially overlap to facilitate the positioning gear 3.

[0042] As an optional implementation, the mounting base 5 also includes a base plate 51, which is supported on the bottom of the first side plate 52 and the second side plate 53; an inwardly protruding support platform 14 is formed on the top inner side of the left side wall 111 and the right side wall 113; the base plate 51 is mounted on the rear end of the support platform 14.

[0043] like Figure 4-9 As shown, based on the aforementioned embodiment, in this embodiment, the support platform 14 is plate-shaped and horizontally arranged. Two mounting bases 5 are fixed to the support platform 14 from the left and right, wherein the base plate 51, the first side plate 52, and the second side plate 53 are integrally formed. The base plate 51, the first side plate 52, and the second side plate 53 are all perpendicular to each other. The top of the support platform 14 is supported and connected to the base plate 51, and the first side plate 52 is fitted and connected to the inner side of the rear side wall 114.

[0044] like Figure 4-5As shown, in one optional implementation, both the base plate 51 and the first side plate 52 have mounting holes 55, and the mounting base 5 is connected to the fan housing 1 by bolts passing through the mounting holes 55 and / or snap-fitting.

[0045] In some embodiments, the mounting holes 55 in the base plate 51 and the first side plate 52 are bolt holes. Bolt holes are provided in both the support platform 14 and the rear side wall 114, and bolts pass through the bolt holes to achieve bolt connection between the mounting base 5 and the fan housing 1.

[0046] In some embodiments, the mounting holes 55 of the base plate 51 and the first side plate 52 are snap-fit ​​holes, and the mounting base 5 is snapped into the fan housing 1 through snap-fit ​​components.

[0047] In some embodiments, the mounting hole 55 of the base plate 51 is a snap-fit ​​hole, which enables the mounting base 5 to be snapped into the fan housing 1 through a snap-fit ​​component; the mounting hole 55 of the first side plate 52 is a bolt hole, and the rear side wall 114 is also provided with bolt holes, through which bolts pass to achieve bolt connection between the mounting base 5 and the fan housing 1.

[0048] like Figure 7 and 9 As shown, in one optional implementation, a through hole 13 is formed in the portion of the rear shell wall 25 corresponding to the opening 54, and the teeth of the positioning gear 3 passing through the opening 54 pass through the through hole 13.

[0049] In some embodiments, the through hole 13 is a rectangular hole, and its length direction is vertical. The through hole 13 corresponds to the aforementioned opening 54, allowing the teeth of the positioning gear 3 to pass through. Whether in the rotating phase or the stationary phase, a portion of the teeth of the positioning gear 3 pass through the opening 54 and the through hole 13.

[0050] like Figure 8 As shown, as an optional implementation, the decorative cover 2 has a plurality of snap-fit ​​holes arranged in the vertical extension direction to form a positioning guide rail 21.

[0051] Based on the aforementioned embodiments, in this embodiment, the snap-fit ​​hole is a through hole, which is formed in the aforementioned rear shell wall 25, and multiple snap-fit ​​holes are arranged in a vertical direction. The teeth of the positioning gear 3 snap into the through hole.

[0052] As an alternative implementation, the range hood also includes a rack mounted on the decorative cover 2 and extending in the vertical direction to serve as a positioning guide rail 21.

[0053] Based on the aforementioned embodiments, in this embodiment, the rack is fixed to the front side of the aforementioned rear shell wall 25. The teeth of the positioning gear 3 engage with the rack.

[0054] As an optional implementation, the range hood also includes an elastic element connected to both the mounting base 5 and the locking element 4. The elastic element applies force to the locking element 4 to engage with the tooth groove of the positioning gear 3.

[0055] Based on the aforementioned embodiments, in this embodiment, one end of the elastic member is fixed to the first side plate 52, and the other end is connected to the locking member 4. The elastic member pulls the locking member 4 to engage with the tooth groove of the positioning gear 3.

[0056] like Figure 4-9 As shown, as an optional implementation, the positioning gear 3 is a ratchet.

[0057] like Figure 4-9 As shown, as an optional implementation, the locking element 4 is a ratchet.

[0058] Based on the aforementioned embodiments, in this embodiment, ratchet wheels and pawls are respectively installed on the rear side of the top of the fan housing and at the left and right corners. The ratchet wheel on the left side engages with the positioning guide rail 21 on the left rear shell wall 25, and the ratchet wheel on the right side engages with the positioning guide rail 21 on the right rear shell wall 25.

[0059] The decorative cover 2 is pushed upwards, simultaneously moving the positioning guide rail 21 upwards. The upward movement of the positioning guide rail 21 causes the engaged ratchet to rotate, and the pawl slides along the ratchet teeth. When the ratchet rotates in the opposite direction, the tip of the pawl abuts against the ratchet teeth, stopping the ratchet's rotation. When the decorative cover 2 reaches the desired position, it stops moving, and the ratchet and pawl engage, restricting the ratchet's reverse rotation. This ensures the decorative cover 2 is fixed in position and will not fall back, preventing uneven gaps between the decorative cover 2 and the ceiling.

[0060] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0061] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0063] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0064] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A range hood, characterized in that, include: The range hood body has a fan box (1) installed at the upper end of the range hood body. Decorative cover (2) is provided on the outside of the fan housing (1). The decorative cover (2) has a positioning guide rail (21) extending vertically. The decorative cover (2) can move relative to the fan housing (1) along the extension direction of the positioning guide rail (21). The positioning gear (3) is installed on the fan housing (1). The positioning gear (3) is engaged with the positioning guide rail (21) and can rotate with the movement of the positioning guide rail (21). A locking element (4) is provided on one side of the positioning gear (3) and fixed to the fan housing (1). The locking element (4) can be inserted into the tooth groove of the positioning gear (3) to fix the relative position of the decorative cover (2) and the fan housing (1).

2. The range hood according to claim 1, characterized in that, Also includes: Mounting base (5) is installed on the fan housing (1). The mounting base (5) includes a first side plate (52) and a second side plate (53) connected at an angle. The positioning gear (3) and the locking member (4) are both mounted on the second side plate (53) via a rotating shaft. The first side plate (52) has an opening (54), through which some of the teeth of the positioning gear (3) pass and engage with the positioning guide rail (21).

3. The range hood according to claim 2, characterized in that, The fan housing (1) includes a front cover (11) and a rear plate (12). The front cover (11) and the rear plate (12) are connected and enclosed to form a box-shaped structure. The front cover (11) has a left side wall (111), a front side wall (112), and a right side wall (113). The rear ends of the left side wall (111) and the right side wall (113) are bent inward to form two rear side walls (114). The rear plate (12) is connected between the two rear side walls (114). The first side plate (52) is installed on the rear side wall (114). The teeth of the positioning gear (3) that pass through the opening (54) pass through the rear side wall (114). The decorative cover (2) is installed on the outside of the front cover (11). The decorative cover (2) includes a left shell wall (22), a front shell wall (23) and a right shell wall (24). The rear ends of the left shell wall (22) and the right shell wall (24) are bent inward to form two rear shell walls (25). The positioning guide rail (21) is formed on the rear shell wall (25). A through hole (13) is opened on the part of the rear shell wall (25) corresponding to the opening (54). The gear teeth of the positioning gear (3) passing through the opening (54) pass through the through hole (13).

4. The range hood according to claim 3, characterized in that, The mounting base (5) also includes a base plate (51) which is supported on the bottom of the first side plate (52) and the second side plate (53); the top inner sides of the left side wall (111) and the right side wall (113) form an inwardly protruding support platform (14); the base plate (51) is installed at the rear end of the support platform (14).

5. The range hood according to claim 4, characterized in that, The base plate (51) and the first side plate (52) are both provided with mounting holes (55). The mounting base (5) is connected to the fan housing (1) by bolts passing through the mounting holes (55) and / or snap-fitted.

6. The range hood according to claim 1, characterized in that, The decorative cover (2) has a plurality of snap-fit ​​holes arranged in the vertical direction to form the positioning guide rail (21).

7. The range hood according to claim 1, characterized in that, Also includes: A rack is mounted on the decorative cover (2) and extends vertically to serve as the positioning guide (21).

8. The range hood according to claim 2, characterized in that, Also includes: The elastic element is connected to both the mounting base (5) and the locking element (4). The elastic element applies force to the locking element (4) to engage with the tooth groove of the positioning gear (3).

9. The range hood according to any one of claims 1-8, characterized in that, The positioning gear (3) is a ratchet.

10. The range hood according to claim 9, characterized in that, The locking element (4) is a pawl.

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