Multi-gear height adjusting device and desktop range hood

Abstract

The utility model discloses a multi-gear height adjusting device and a desktop range hood, and relates to the technical field of height adjustment of range hoods, the multi-gear height adjusting device comprises a base, a pipe body and a locking mechanism, and a head assembly of the desktop range hood is arranged on the pipe body; a supporting column is arranged on the base, and a plurality of locking grooves are formed in the surface of the supporting column at intervals in the axial direction. The locking mechanism is arranged in the pipe body, and the pipe body is arranged on the outer side of the supporting column in a sleeving mode. According to the range hood head assembly, the pipe body can be switched and fixed in the different locking grooves of the supporting column through the locking mechanism, so that the height of the pipe body is different, the height of the range hood head assembly is adjusted, each locking groove corresponds to the height of one gear, and therefore the range hood head assembly is adaptive to cookware with different heights, and the requirements of a user for various use scenes are met. When the pipe body is lifted to the last locking groove, the locking mechanism is separated from the locking groove, then the pipe body is pulled upwards, the pipe body can be separated from the base, stains in the pipe body and the base can be conveniently cleaned, and the locking mechanism can also be detached for cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of the height adjustment of a range hood, in particular to a multi-gear height adjustment device and a tabletop range hood. Background Art

[0002] With the rise of eating styles such as hot pot and dry pot, tabletop range hoods are becoming more and more popular. A tabletop range hood can be used on a dining table to suck away oil fumes, which plays a crucial role in protecting the health of diners.

[0003] For the existing tabletop range hoods, their heights are usually fixed and not easy to adjust. However, the heights of cookware are not unified. Therefore, the existing tabletop range hoods cannot be applied to cookware with different heights. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of the utility model is the problem that the height adjustment of the existing tabletop range hood is inconvenient.

[0005] To solve the above problem, in a first aspect, an embodiment of the utility model provides a multi-gear height adjustment device, which is applied to a tabletop range hood. The tabletop range hood includes a head assembly. The multi-gear height adjustment device includes a base, a tube body and a locking mechanism. The head assembly is arranged on the tube body. A support column is arranged on the base, and a plurality of locking grooves are arranged at intervals along the axial direction of the support column on the surface of the support column. The locking mechanism is arranged in the tube body, and the tube body is sleeved outside the support column. Wherein, the tube body can be switched and fixed in different locking grooves of the support column through the locking mechanism.

[0006] A further technical solution thereof is that the locking mechanism includes a button bracket and a locking button. The button bracket includes a central through hole, and an installation notch is arranged on the side wall of the central through hole. The button bracket is embedded at one end of the tube body and connected to the tube body. The support column passes through the central through hole of the button bracket and enters the tube body. The locking button is installed in the installation notch, and the locking button can be switched and locked in different locking grooves of the support column.

[0007] A further technical solution thereof is that a first installation part is arranged on the inner wall of the central through hole, and a first fastening hole is arranged on the first installation part. A second installation part corresponding to the first installation part is arranged on the inner wall of the tube body, and a second fastening hole corresponding to the first fastening hole is arranged on the second installation part. The button bracket is connected to the tube body through a fastener passing through the first fastening hole and the second fastening hole.

[0008] A further technical solution thereof is that two third installation parts are arranged on both sides of the installation notch, and the locking button is rotatably connected to the two third installation parts.

[0009] A further technical solution is that the two third mounting parts are provided with first shaft holes; the locking button includes a second shaft hole, a locking hook part and a button part respectively arranged on both sides of the second shaft hole; a rotating shaft passes through the second shaft hole of the locking button, and both ends of the rotating shaft are respectively inserted into the first shaft holes of the two third mounting parts.

[0010] A further technical solution is that a torsion spring is sleeved on the rotating shaft, and the torsion spring is configured to make the locking hook part of the locking button rotate towards the direction of hooking into the locking groove of the support column.

[0011] A further technical solution is that a button hole corresponding to the button part is provided on the pipe body, the button part is embedded in the button hole, and the button part is exposed outside the pipe body.

[0012] A further technical solution is that a guide groove is provided inside the central through hole of the button bracket, a guide rib corresponding to the guide groove is provided on the outer side of the support column, and the guide rib is embedded in the guide groove.

[0013] A further technical solution is that the upper edge of the side wall at the bottom side of the locking groove is a right angle.

[0014] In a second aspect, an embodiment of the present invention provides a tabletop range hood, including the multi-stage height adjustment device as described in the first aspect.

[0015] Compared with the prior art, the technical effects that can be achieved by the embodiments of the present invention include:

[0016] The present invention provides a multi-stage height adjustment device, which is applied to a tabletop range hood. The tabletop range hood includes a head assembly. The multi-stage height adjustment device includes a base, a pipe body and a locking mechanism. The head assembly is arranged on the pipe body; a support column is provided on the base, and a plurality of locking grooves are arranged at intervals along the axial direction on the surface of the support column; the locking mechanism is arranged in the pipe body, and the pipe body is sleeved outside the support column; the pipe body can be switched and fixed in different locking grooves of the support column through the locking mechanism, so that the height of the pipe body is different, thereby realizing the adjustment of the height of the head assembly of the range hood. Moreover, each locking groove corresponds to a height of one gear, so as to adapt to cookware of different heights and meet the needs of various usage scenarios of users.

[0017] Further, when the pipe body 20 rises to the last locking groove 111, the locking mechanism 30 is disengaged from the locking groove 111, and then the pipe body 20 is pulled upwards, and the pipe body 20 can be detached from the base 10, which is convenient for cleaning the stains inside the pipe body 20 and the base 10. At the same time, the locking mechanism 30 can also be detached for cleaning. Brief Description of the Drawings

[0018] The drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present utility model, and are used together with the specification to explain the principles of the present utility model.

[0019] To more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.

[0021] Figure 1 An exploded view of a multi-gear height adjustment device proposed for an embodiment of the present utility model;

[0022] Figure 2 A cross-sectional schematic view of a multi-gear height adjustment device proposed for an embodiment of the present utility model;

[0023] Figure 3 A schematic view of the cooperation between the tube body and the locking mechanism of a multi-gear height adjustment device proposed for an embodiment of the present utility model;

[0024] Figure 4 Another schematic view of the cooperation between the tube body and the locking mechanism of a multi-gear height adjustment device proposed for an embodiment of the present utility model;

[0025] Figure 5 A schematic view of the structure of the base of a multi-gear height adjustment device proposed for an embodiment of the present utility model;

[0026] Figure 6 Another schematic view of the structure of the base of a multi-gear height adjustment device proposed for an embodiment of the present utility model;

[0027] Figure 7 A schematic view of the structure of the locking button of the base of a multi-gear height adjustment device proposed for an embodiment of the present utility model.

[0028] Reference Signs

[0029] Head assembly 100, base 10, tube body 20, locking mechanism 30, support column 11, locking groove 111, guiding rib 112, upper edge 113, button bracket 31, locking button 32, central through hole 311, installation notch 312, first installation part 313, first fastening hole 314, third installation part 315, first shaft hole 316, guiding groove 317, locking hook part 321, button part 322, rotating shaft 323, torsion spring 324, second installation part 21, second fastening hole 22, button hole 23. Detailed implementation

[0030] The following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0031] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0032] It should also be understood that the terms used in the specification of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the specification of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0033] See Figures 1-7 , the embodiments of the present invention propose a multi-gear height adjustment device, which can adjust the height of the head assembly 100 of the tabletop range hood and has multiple gears of height adjustable, so as to be adapted to cookware of different heights. The multi-gear height adjustment device includes a base 10, a tube body 20, and a locking mechanism 30. The specific structure is introduced as follows:

[0034] The head assembly 100 is arranged on the tube body 20; specifically, the tube body 20 is used to carry the head assembly 100, and the tube body 20 can be connected to the head assembly 100 through fasteners and / or snap structures, which are not specifically limited in the present invention. It can be understood that the head assembly 100 is the part of the range hood that sucks oil fumes, including a fan and corresponding pipelines, which are not specifically limited in the present invention.

[0035] The base 10 is provided with a support column 11, and a plurality of locking grooves 111 are arranged on the surface of the support column 11 at intervals along its own axis; the support column 11 is used to support the pipe body 20, and the locking grooves 111 are used to limit the height of the pipe body 20, wherein each locking groove 111 corresponds to the height of one gear. The spacing between the locking grooves 111 can be the same or different. In order to save materials, the support column 11 can be a hollow structure.

[0036] The locking mechanism 30 is arranged in the pipe body 20, and the pipe body 20 is sleeved outside the support column 11; in the present utility model, the pipe body 20 can be switched and fixed in different locking grooves 111 of the support column 11 through the locking mechanism 30, so that the height of the pipe body 20 is different, thereby realizing the adjustment of the height of the head assembly 100 of the range hood.

[0037] The present utility model provides a multi-gear height adjustment device, which is applied to a tabletop range hood. The tabletop range hood includes a head assembly 100. The multi-gear height adjustment device includes a base 10, a pipe body 20 and a locking mechanism 30. The head assembly 100 is arranged on the pipe body 20; the base 10 is provided with a support column 11, and a plurality of locking grooves 111 are arranged on the surface of the support column 11 at intervals along the axis; the locking mechanism 30 is arranged in the pipe body 20, and the pipe body 20 is sleeved outside the support column 11; through the locking mechanism 30, the pipe body 20 can be switched and fixed in different locking grooves 111 of the support column 11, so that the height of the pipe body 20 is different, thereby realizing the adjustment of the height of the head assembly 100 of the range hood, and each locking groove 111 corresponds to the height of one gear, so as to be adapted to cookware of different heights and meet the needs of various usage scenarios of users; further, when the pipe body 20 rises to the last locking groove 111, the locking mechanism 30 is disengaged from the locking groove 111, and then the pipe body 20 is pulled up, and the pipe body 20 can be disengaged from the base 10, which is convenient for cleaning the stains in the pipe body 20 and the base 10. At the same time, the locking mechanism 30 can also be disassembled for cleaning.

[0038] Further, in some embodiments, such as in this embodiment, the locking mechanism 30 includes a button bracket 31 and a locking button 32. The button bracket 31 includes a central through hole 311, and an installation notch 312 is arranged on the side wall of the central through hole 311.

[0039] The button bracket 31 is embedded at one end of the pipe body 20 and connected to the pipe body 20, for example, by fasteners. The button bracket 31 and the pipe body 20 are connected and fixed as a whole.

[0040] The support column 11 passes through the central through hole 311 of the button bracket 31 and enters the tube body 20; the locking button 32 is installed in the installation notch 312. The locking button 32 can rotate within the installation notch 312 to be embedded in or disengaged from the locking groove 111.

[0041] The locking button 32 can be switched to lock in different locking grooves 111 of the support column 11, thereby adjusting the height of the tube body 20 so that the head assembly 100 can adapt to cookware of different heights.

[0042] Further, a first installation portion 313 is provided on the inner wall of the central through hole 311, and a first fastening hole 314 is provided in the first installation portion 313; a second installation portion 21 corresponding to the first installation portion 313 is provided on the inner wall of the tube body 20, and a second fastening hole 22 corresponding to the first fastening hole 314 is provided in the second installation portion 21; the button bracket 31 and the tube body 20 are connected by a fastener passing through the first fastening hole 314 and the second fastening hole 22.

[0043] Specifically, the first installation portion 313 can specifically be an installation piece, the first fastening hole 314 can specifically be a screw hole, the number of the first installation portions 313 is multiple, for example, two, and they are evenly distributed. The position of the second installation portion 21 is aligned with that of the first installation portion 313. The second installation portion 21 can specifically be an installation post, the number of the second installation portions 21 is multiple, for example, two, and they are evenly distributed. The second fastening hole 22 can specifically be a screw hole, and the second fastening hole 22 is aligned with the first fastening hole 314. The fastener can specifically be a screw.

[0044] Further, two third installation portions 315 are provided on both sides of the installation notch 312, and the locking button 32 is rotatably connected to the two third installation portions 315. The third installation portion 315 can specifically be an installation piece, and the locking button 32 can rotate within the installation notch 312 to be switched to lock in different locking grooves 111 of the support column 11, thereby adjusting the height of the tube body 20 so that the head assembly 100 can adapt to cookware of different heights.

[0045] Further, first shaft holes 316 are provided on the two third installation portions 315; the locking button 32 includes a second shaft hole (the second shaft hole is occupied by a rotating shaft 323, not shown in the figure) and a locking hook portion 321 and a button portion 322 respectively provided on both sides of the second shaft hole; the rotating shaft 323 passes through the second shaft hole of the locking button 32, and both ends of the rotating shaft 323 are respectively inserted into the first shaft holes 316 of the two third installation portions 315. Both ends of the rotating shaft 323 are fixed in the first shaft holes 316 of the third installation portions 315, for example, they can be fixed by bearings, and the present utility model does not specifically limit this.

[0046] Further, a torsion spring 324 is sleeved on the rotating shaft 323, and the torsion spring 324 is configured to rotate the locking hook portion 321 of the locking button 32 in a direction of hooking into the locking groove 111 of the support column 11.

[0047] Pressing the button portion 322 can thus disengage the locking hook portion 321 from the locking groove 111. At this time, the height of the pipe body 20 can be adjusted, and even the pipe body 20 can be separated from the column body of the base 10, so as to realize the disassembly of the head assembly 100, facilitating the cleaning of the head assembly 100. Specifically, after the pipe body 20 rises to the last locking groove 111, pressing the button portion 322 can disengage the locking hook portion 321 from the last locking groove 111, and then pulling the pipe body 20 upward can disengage the pipe body 20 from the base 10, facilitating the cleaning of the stains inside the pipe body 20 and the base 10. At the same time, the button bracket 31 and the locking button 32 can also be disassembled for cleaning.

[0048] After releasing the button portion 322, under the action of the torsion spring 324, the locking hook portion 321 of the locking button 32 hooks into the locking groove 111 of the support column 11, thereby realizing the fixing of the pipe body 20 to the column body of the base 10.

[0049] Further, a button hole 23 corresponding to the button portion 322 is provided on the pipe body 20, the button portion 322 is embedded in the button hole 23, and the button portion 322 is exposed outside the pipe body 20.

[0050] The button portion 322 being exposed outside the pipe body 20 facilitates the user to press the button portion 322, thereby realizing the height adjustment operation.

[0051] Further, a guiding groove 317 is provided inside the central through hole 311 of the button bracket 31, a guiding rib 112 corresponding to the guiding groove 317 is provided on the outer side of the support column 11, and the guiding rib 112 is embedded in the guiding groove 317.

[0052] By embedding the guiding rib 112 in the guiding groove 317, it can have a good guiding effect on the movement of the pipe body 20, and at the same time, it is also convenient for positioning during assembly.

[0053] Further, the upper edge 113 of the side wall at the bottom side of the locking groove 111 is a right angle without a chamfer, so as to prevent the locking hook portion 321 of the locking button 32 from sliding out under excessive external force due to the excessive weight of the head assembly 100, resulting in the failure of the limit.

[0054] An embodiment of the present utility model provides a tabletop range hood, and the tabletop range hood includes the multi-gear height adjustment device as described in any one of the above embodiments.

[0055] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0056] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, 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 of the present utility model.

[0057] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0058] In the present utility model, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of 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 circumstances.

[0059] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0060] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0061] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, provided that these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and variations therein.

[0062] The above is the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A multi-position height adjustment device, characterized in that: Applied to a desktop range hood, the desktop range hood includes a head assembly, the multi-level height adjustment device includes a base, a tube body and a locking mechanism, the head assembly is arranged on the tube body; a support column is provided on the base, and a plurality of locking grooves are provided on the surface of the support column along the axial direction thereof; the locking mechanism is provided in the tube body, and the tube body is sleeved on the outside of the support column; wherein the tube body can be switched and fixed in different locking grooves of the support column through the locking mechanism.

2. The multi-level height adjustment device according to claim 1, characterized in that: The locking mechanism includes a button bracket and a locking button, the button bracket includes a central through hole, and the side wall of the central through hole is provided with a mounting notch; the button bracket is embedded in one end of the tube body and connected to the tube body, and the support column passes through the central through hole of the button bracket and enters into the tube body; the locking button is installed in the mounting notch, and the locking button can be switched and locked in different locking grooves of the support column.

3. The multi-level height adjustment device according to claim 2, characterized in that: The inner wall of the central through hole is provided with a first mounting portion, and the first mounting portion is provided with a first fastening hole; the inner wall of the tube body is provided with a second mounting portion corresponding to the first mounting portion, and the second mounting portion is provided with a second fastening hole corresponding to the first fastening hole; The button bracket is connected to the tube body by a fastener passing through the first fastening hole and the second fastening hole.

4. The multi-level height adjustment device according to claim 2, characterized in that: Two third mounting parts are arranged on both sides of the mounting notch, and the locking button is rotatably connected to the two third mounting parts.

5. The multi-level height adjustment device according to claim 4, characterized in that: A first axial hole is provided on the two third mounting parts; the locking button includes a second axial hole and a locking hook part and a button part respectively provided on both sides of the second axial hole; a rotating shaft passes through the second axial hole of the locking button, and the two ends of the rotating shaft are respectively inserted into the first axial holes of the two third mounting parts.

6. The multi-level height adjustment device according to claim 5, characterized in that: A torsion spring is sleeved on the rotating shaft, and the torsion spring is configured to make the lock hook portion of the locking button rotate in a direction of being hooked into the locking groove of the supporting column.

7. The multi-level height adjustment device according to claim 5, characterized in that: The tube body is provided with a button hole corresponding to the button part, the button part is embedded in the button hole, and the button part is exposed outside the tube body.

8. The multi-level height adjustment device according to claim 2, characterized in that: A guide groove is arranged on the inner side of the central through hole of the button bracket, and a guide rib corresponding to the guide groove is arranged on the outer side of the support column, and the guide rib is embedded in the guide groove.

9. The multi-position height adjustment device according to claim 1, characterized in that: The upper edge of the side wall of the locking groove located at the bottom side is a right angle.

10. A desktop range hood, characterized in that: It comprises a multi-level height adjustment device as described in any one of claims 1 to 9.

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