Air pipe cover mounting structure of range hood

Abstract

The utility model discloses an air pipe cover mounting structure of a range hood, which comprises a range hood main body, the range hood main body is provided with a platform part and a flue shell which is arranged vertical to the platform part, and the upper surface of the platform part is provided with a positioning sinking groove around the periphery of the flue shell; the flue shell is sleeved with the U-shaped outer cover body and the U-shaped inner cover body, the inner cover body is movably sleeved with the outer cover body, the inner cover body can move up and down relative to the outer cover body so as to adjust the distance of the upper end of the inner cover body extending out of the upper end of the outer cover body, openings of the outer cover body and the inner cover body face backwards, and the edge of the lower end of the outer cover body is inserted into the positioning sinking groove; a limiting and disengaging preventing mechanism is arranged between the inner wall of the outer cover body and the outer wall of the flue shell, and the limiting and disengaging preventing mechanism can limit the upward moving distance of the outer cover body and prevent the outer cover body from directly disengaging from the flue shell upwards. According to the air duct cover installation structure, exposed screws are omitted, attractiveness is facilitated, and the outer cover body and the inner cover body are convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to an installation structure of an air duct cover of an oil fume machine. Background Art

[0002] At present, in order to achieve the effects of beauty and protection, the air duct cover of the oil fume machine is applied to surround the outer periphery of the smoke pipe. Among them, in order to meet the installation requirements of different scenarios, the air duct cover generally includes an inner cover body and an outer cover body, and the relative lifting adjustment between the inner cover body and the outer cover body is used to adjust the height dimension of the air duct cover.

[0003] When the inner cover body is pulled upward to adjust the height, due to the small assembly gap between the inner and outer cover bodies or the dimensional error of the parts, jamming occurs, and the inner cover body is likely to lift the outer cover body together. At this time, the "C"-shaped air duct cover is deformed to a certain extent, and it is necessary to manually pat and pull to separate the inner cover body and the outer cover body, resulting in very inconvenient installation. In the related art, in order to avoid the above problems, some air duct covers adopt a split inner cover body and outer cover body. First, the outer cover body is fixed on the main body of the range hood, and then the inner cover body is pulled. The air duct cover with this structure has exposed screws, poor aesthetics, integrity, and installation firmness.

[0004] In addition, when the inner cover body moves up and down relative to the outer cover body, rubbing will occur, resulting in scratches on the outer surface of the inner cover body and causing poor appearance. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an installation structure of an air duct cover of an oil fume machine that is both beautiful and convenient for installation and disassembly.

[0006] An installation structure of an air duct cover of an oil fume machine according to an embodiment of the utility model includes: a main body of the range hood, the main body of the range hood having a platform portion and a flue housing perpendicular to the platform portion, and a positioning sink is provided on the upper surface of the platform portion around the outer periphery of the flue housing; a "C"-shaped outer cover body and an inner cover body, both sleeved outside the flue housing, the outer cover body is movably sleeved outside the inner cover body, the inner cover body can move up and down relative to the outer cover body to adjust the distance that the upper end of the inner cover body extends out of the upper end of the outer cover body, the openings of the outer cover body and the inner cover body face backward, the lower edge of the outer cover body is inserted into the positioning sink, and a limit and anti-disengagement mechanism is provided between the inner wall of the outer cover body and the outer wall of the flue housing, and the limit and anti-disengagement mechanism can limit the upward movement distance of the outer cover body and prevent the outer cover body from directly disengaging from the flue housing upward.

[0007] The installation structure of the air duct cover of the oil fume machine according to the embodiment of the utility model has at least the following beneficial effects:

[0008] When the above air duct cover installation structure is assembled, the lower end face of the outer cover body abuts against the platform part and drives the opening to be aligned with the outside of the flue shell and inserted. When the lower end edge of the outer cover body moves to align with the positioning groove, the outer cover body can be inserted into the positioning groove under the action of gravity. At the same time, the limit stop mechanism between the outer cover body and the flue shell takes effect, which can prevent the outer cover body from directly detaching upward, thereby realizing the assembly of the air duct cover; when the air duct cover needs to be removed, the limit stop mechanism allows the outer cover body to move upward to the height of the platform part relative to the range hood body, and then drives the outer cover body to be pulled outward, thereby facilitating the removal of the air duct cover; in addition, when the inner cover body rises relative to the outer cover body, the limit stop mechanism allows the outer cover body to move upward a certain distance relative to the range hood body, which is conducive to reducing the probability of the inner cover body and the outer cover body getting stuck. Therefore, the above air duct cover installation structure eliminates the need for exposed screws, which is both beautiful and convenient to install and remove.

[0009] In some embodiments of the utility model, the limit-stop mechanism includes a limit groove extending in the vertical direction and a limit member that can move in and out of the limit groove in the front-to-back direction, and the limit member can abut against the upper end of the limit groove to prevent the outer cover from directly detaching from the flue shell upward.

[0010] In some embodiments of the utility model, the left and right inner walls of the outer cover body are respectively provided with a limiting groove, and the left and right outer walls of the flue shell are respectively provided with a limiting member, and the limiting groove has a forward or backward entrance. After the limiting member enters the limiting groove along the entrance, the lower end surface of the outer cover body can be abutted against the bottom wall of the positioning groove under the action of gravity, or the lower end surface of the outer cover body can be lifted to the top of the platform part and then slide away from the flue shell in the direction away from the opening of the outer cover body.

[0011] In some embodiments of the utility model, both side edges of the opening of the outer cover body are bent inward to form a strip-shaped flap portion, the flap portion includes a rear end strip parallel to the front side plate of the outer cover body and a side strip connected to the rear end strip and abutted against the left outer wall or the right outer wall of the flue shell, the flap portion is penetrated by a through hole portion constituting the limiting groove, the through hole portion includes a rectangular through hole provided on the rear end strip and a blocking groove provided on the side strip and connected to the rectangular through hole, the length direction of the rectangular through hole is arranged along the vertical direction to form the entrance.

[0012] In some embodiments of the utility model, the bottom of the anti-escape groove is arranged along the vertical direction, and the length of the bottom of the anti-escape groove is smaller than the length of the rectangular perforation, and the bottom of the anti-escape groove is connected to the rectangular perforation through an inclined guide ramp section.

[0013] In some embodiments of the present invention, the limiting member is a limiting screw threadedly connected to the left side wall or the right side wall of the flue housing.

[0014] In some embodiments of the present invention, the head of the limit screw protrudes from the outer wall of the flue shell, and when the rod of the limit screw abuts against the inner wall of the limit groove, the head of the limit screw can limit the left and right movement of the outer cover relative to the flue shell.

[0015] In some embodiments of the present invention, a scratch-proof structure is provided in the width gap between the outer peripheral wall of the inner cover body and the inner peripheral wall of the outer cover body.

[0016] In some embodiments of the present invention, the anti-scratch structure includes a convex bump formed on the lower edge of the outer peripheral wall of the inner cover body and a cushion layer attached to the upper edge of the inner peripheral wall of the outer cover body.

[0017] In some embodiments of the present invention, the distance that the convex bump protrudes from the outer peripheral wall of the inner cover body is greater than the thickness of the cushion layer.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the air duct cover installation structure of the range hood of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structural decomposition of an embodiment;

[0022] Figure 3 It is a structural schematic diagram of the outer cover body being installed in the positioning sink;

[0023] Figure 4 It is a schematic diagram of the local structure of the outer cover. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, for example, terms such as "upper", "lower", "front", "rear", "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 drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0026] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "joined" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. 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.

[0028] See Figures 1 to 4 , an installation structure of an air duct cover of an oil fume machine of the present utility model includes: a smoke machine main body 100, the smoke machine main body 100 has a platform portion 110 and a flue housing 120 arranged perpendicular to the platform portion 110, and a positioning sink 130 is arranged on the upper surface of the platform portion 110 around the outer periphery of the flue housing 120; a U-shaped outer cover body 200 and an inner cover body 300, both are sleeved outside the flue housing 120, the outer cover body 200 is movably sleeved outside the inner cover body 300, the inner cover body 300 can move up and down relative to the outer cover body 200 to adjust the distance that the upper end of the inner cover body 300 extends out of the upper end of the outer cover body 200. The openings of the outer cover body 200 and the inner cover body 300 both face backward. The lower end edge of the outer cover body 200 is inserted into the positioning sink 130, and a limiting and anti-disengagement mechanism is arranged between the inner wall of the outer cover body 200 and the outer wall of the flue housing 120. The limiting and anti-disengagement mechanism can limit the upward movement distance of the outer cover body 200 and prevent the outer cover body 200 from directly moving upward and disengaging from the flue housing 120.

[0029] When the above air duct cover installation structure is assembled, the lower end surface of the outer cover body 200 abuts against the platform part 110 and drives the opening to be aligned with the outside of the flue shell 120 and inserted. When the lower end edge of the outer cover body 200 moves to align with the positioning groove 130, the outer cover body 200 can be inserted into the positioning groove 130 under the action of gravity. At the same time, the limit stop mechanism between the outer cover body 200 and the flue shell 120 takes effect, which can prevent the outer cover body 200 from directly detaching upwards, thereby realizing the air duct cover When the air duct cover needs to be removed, the limit stop mechanism allows the outer cover 200 to move upward relative to the range hood body 100 to the height of the platform 110, and then the outer cover 200 is driven to be pulled outward, thereby facilitating the removal of the air duct cover; in addition, when the inner cover 300 rises relative to the outer cover 200, the limit stop mechanism allows the outer cover 200 to move upward relative to the range hood body 100 by a certain distance, which is conducive to reducing the probability of the inner cover 300 and the outer cover 200 getting stuck. Therefore, the above air duct cover installation structure eliminates the need for exposed screws, which is both beautiful and convenient to install and remove.

[0030] join Figure 2 and Figure 3 In some embodiments of the utility model, the limit-stop mechanism includes a limit groove 410 extending in the vertical direction and a limit member 420 that can move in and out of the limit groove 410 in the front-to-back direction, and the limit member 420 can abut against the upper end of the limit groove 410 to prevent the outer cover body 200 from directly detaching from the flue shell 120 upward. It is understandable that when the opening of the outer cover body 200 and the opening of the inner cover body 300 move backward a certain distance to be sleeved on the outside of the flue shell 120, the stopper 420 enters the stopper groove 410, and the lower edge of the outer cover body 200 falls into the positioning groove 130. The stopper 420 cannot directly leave the stopper groove 410 upward under the limiting effect of the stopper groove 410; when the lower end of the outer cover body 200 moves upward to the top of the platform part 110, the opening of the outer cover body 200 and the opening of the inner cover body 300 move forward, the stopper 420 and the stopper groove 410 can be separated, and the lower edge of the outer cover body 200 leaves the positioning groove 130. The stopper mechanism of the above structure is very simple and low in cost, and is also conducive to the rapid disassembly and installation between the air duct cover and the smoke machine body 100.

[0031] In some embodiments of the present invention, in order to improve the working reliability of the limiting and preventing mechanism and at the same time facilitate the limiting member 420 to enter and exit the limiting groove 410 to realize the disassembly and installation between the outer cover body 200 and the smoke machine main body 100, the left and right inner walls of the outer cover body 200 are respectively provided with a limiting groove 410, and the left and right outer walls of the flue shell 120 are respectively provided with a limiting member 420, and the limiting groove 410 has a forward or backward entrance. After the limiting member 420 enters the limiting groove 410 along the entrance, the lower end surface of the outer cover body 200 can be against the bottom wall of the positioning sink 130 under the action of gravity, or the lower end surface of the outer cover body 200 can be lifted to the top of the platform part 110 and then slide away from the flue shell 120 in the direction of the opening of the outer cover body 200. The above structure is conducive to maintaining the size of the opening of the outer cover body 200. Of course, in other embodiments, the limiting groove 410 and the limiting member 420 may be fixed to the front outer wall of the flue shell 120 and the front inner wall of the outer cover body 200 respectively.

[0032] See also Figure 3 and Figure 4 In some embodiments of the utility model, the two side edges of the opening of the outer cover body 200 are bent inward to form a strip-shaped flap portion 210, and the flap portion 210 includes a rear end strip plate 211 parallel to the front side plate of the outer cover body 200 and a side strip plate 212 connected to the rear end strip plate 211 and abutting against the left outer wall or the right outer wall of the flue shell 120, and the flap portion 210 is penetrated by a through hole portion constituting the limiting groove 410, and the through hole portion includes a rectangular through hole 411 provided on the rear end strip plate 211 and a blocking groove 412 provided on the side strip plate 212 and connected to the rectangular through hole 411, and the length direction of the rectangular through hole 411 is arranged along the vertical direction to form the entrance. It is understandable that when assembling the air duct cover, the lower end surface of the outer cover body 200 abuts against the upper surface of the platform part 110, and the opening of the outer cover body 200 and the opening of the inner cover body 300 are arranged backward, and then the outer cover body 200 and the inner cover body 300 are pushed until the two sides of the opening of the outer cover body 200 are aligned with the left and right sides of the rear end of the flue shell 120. In this process, the limiter 420 enters the anti-detachment groove 412 from the rectangular perforation 411, and the lower end edge of the outer cover body 200 is inserted into the positioning sink 130. When the outer cover body 200 only moves upward, the limiter 420 abuts against the upper end of the anti-detachment groove 412 to prevent it from detaching. Among them, the flap part 210 and the outer cover body 200 are an integrated sheet metal structure, the through hole part is pre-obtained by stamping, and then bent to form the rear end strip 211 and the side strip 212, which is very convenient to produce and process, and the cost is low.

[0033] See also Figure 4In some embodiments of the utility model, in order to facilitate guiding the limit member 420 to enter the anti-escape groove 412, the bottom of the anti-escape groove 412 is arranged along the vertical direction, and the length of the bottom of the anti-escape groove 412 is smaller than the length of the rectangular through-hole 411, and the bottom of the anti-escape groove 412 is connected to the rectangular through-hole 411 through an inclined guide ramp section 413.

[0034] See also Figure 2 and Figure 3 In some embodiments of the present invention, the stopper 420 is a stopper screw threadedly connected to the left wall or the right wall of the flue housing 120, which is beneficial to the production assembly process and convenient for adjusting the position of the stopper 420 to match the stopper groove 410. Of course, in other embodiments, the stopper 420 can also be fixed to the flue housing 120 by welding.

[0035] See also Figure 3 In some embodiments of the present invention, the head of the limit screw protrudes from the outer wall of the flue housing 120, and when the rod of the limit screw abuts against the inner wall of the limit slot 410, the head of the limit screw can limit the left and right movement of the outer cover 200 relative to the flue housing 120. In this embodiment, the head of the limit screw abuts against the side strip 212 to prevent the opening of the outer cover 200 from being deformed and moving left and right.

[0036] See also Figure 2 In some embodiments of the present invention, in order to alleviate the situation where the surface is scratched when the inner cover body 300 is lifted and lowered relative to the outer cover body 200, an anti-scratch structure is provided in the width gap between the outer circumferential wall of the inner cover body 300 and the inner circumferential wall of the outer cover body 200.

[0037] See also Figure 2 In some embodiments of the present invention, the anti-scratch structure includes a convex 510 formed on the lower edge of the outer peripheral wall of the inner cover 300 and a cushion layer 520 attached to the upper edge of the inner peripheral wall of the outer cover 200. It can be understood that the cushion layer 520 can prevent the outer cover 200 and the inner cover 300 from being scratched relative to each other, and the cushion layer 520 will not be exposed when the inner cover 300 extends upward from the outer cover 200, and the convex 510 abuts between the outer cover 200 and the inner cover 300 so that the inner cover 300 can slide up and down smoothly relative to the outer cover 200, and the convex 510 will not be exposed when the inner cover 300 extends upward from the outer cover 200.

[0038] In some embodiments of the utility model, the distance that the convex hump 510 protrudes from the outer peripheral wall of the inner cover body 300 is greater than the thickness dimension of the cushion layer 520. If the thickness dimension of the cushion layer 520 is greater than the distance that the convex hump 510 protrudes from the outer peripheral wall of the inner cover body 300, when the inner cover body 300 and the outer cover body 200 are relatively lifted and moved, the cushion layer 520 will contact the inner cover body 300 to form an obstruction, and the setting that the distance that the convex hump 510 protrudes from the outer peripheral wall of the inner cover body 300 is greater than the thickness dimension of the cushion layer 520 can well solve the above problem, which not only meets the requirements of not scratching the surface of the inner cover body 300, but also meets the requirements of smooth relative lifting and moving of the inner cover body 300 and the outer cover body 200.

[0039] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A duct cover mounting structure for a range hood, characterized in that: include: A range hood body (100), the range hood body (100) comprising a platform portion (110) and a flue shell (120) arranged perpendicular to the platform portion (110), the upper surface of the platform portion (110) being provided with a positioning recessed groove (130) surrounding the outer periphery of the flue shell (120); The outer cover body (200) and the inner cover body (300) are both sleeved on the outside of the flue shell (120); the outer cover body (200) is movably sleeved on the outside of the inner cover body (300); the inner cover body (300) can be lifted and lowered relative to the outer cover body (200) to adjust the distance that the upper end of the inner cover body (300) protrudes from the upper end of the outer cover body (200); the openings of the outer cover body (200) and the inner cover body (300) are both backward; the lower end edge of the outer cover body (200) is inserted into the positioning groove (130); a limit stop mechanism is provided between the inner wall of the outer cover body (200) and the outer wall of the flue shell (120); the limit stop mechanism can limit the distance that the outer cover body (200) moves upward and prevent the outer cover body (200) from directly detaching from the flue shell (120) upward.

2. The air duct cover mounting structure of a range hood according to claim 1, characterized in that: The position-limiting and disengagement-blocking mechanism comprises a position-limiting groove (410) extending in a vertical direction and a position-limiting member (420) capable of moving in and out of the position-limiting groove (410) in a front-to-rear direction, wherein the position-limiting member (420) can abut against an upper end of the position-limiting groove (410) to prevent the outer cover (200) from directly disengaging from the flue shell (120) upward.

3. The air duct cover mounting structure of a range hood according to claim 2, characterized in that: The left and right inner walls of the outer cover body (200) are respectively provided with a limiting groove (410), and the left and right outer walls of the flue shell (120) are respectively provided with a limiting member (420), and the limiting groove (410) has a forward or backward entrance. After the limiting member (420) enters the limiting groove (410) along the entrance, the lower end surface of the outer cover body (200) can be pressed against the bottom wall of the positioning sink (130) under the action of gravity, or the lower end surface of the outer cover body (200) can be lifted to the top of the platform part (110) and then slide away from the flue shell (120) in the direction away from the opening of the outer cover body (200).

4. The air duct cover mounting structure of a range hood according to claim 3, characterized in that: The edges on both sides of the opening of the outer cover body (200) are bent inward to form a strip-shaped flap portion (210), the flap portion (210) comprising a rear end strip plate (211) parallel to the front side plate of the outer cover body (200) and a side strip plate (212) connected to the rear end strip plate (211) and abutting against the left outer wall or the right outer wall of the flue shell (120), the flap portion (210) is penetrated by a through hole portion forming the limiting groove (410), the through hole portion comprising a rectangular through hole (411) provided on the rear end strip plate (211) and a blocking groove (412) provided on the side strip plate (212) and connected to the rectangular through hole (411), the length direction of the rectangular through hole (411) is arranged along the vertical direction to form the inlet.

5. The air duct cover mounting structure of a range hood according to claim 4, characterized in that: The bottom of the anti-escape groove (412) is arranged in the vertical direction, and the length of the bottom of the anti-escape groove (412) is smaller than the length of the rectangular through hole (411). The bottom of the anti-escape groove (412) is connected to the rectangular through hole (411) via an inclined guide slope section (413).

6. The air duct cover mounting structure of a range hood according to claim 3, characterized in that: The limiting member (420) is a limiting screw threadedly connected to the left wall or the right wall of the flue housing (120).

7. The air duct cover mounting structure of a range hood according to claim 6, characterized in that: The head of the limit screw protrudes from the outer wall of the flue shell (120), and when the rod of the limit screw abuts against the inner wall of the limit groove (410), the head of the limit screw can limit the left and right movement of the outer cover (200) relative to the flue shell (120).

8. The air duct cover mounting structure of a range hood according to claim 1, characterized in that: An anti-scratch structure is provided in the width gap between the outer peripheral wall of the inner cover body (300) and the inner peripheral wall of the outer cover body (200).

9. The air duct cover mounting structure of a range hood according to claim 8, characterized in that: The anti-scratch structure comprises a convex bump (510) formed on the lower edge of the outer peripheral wall of the inner cover body (300) and a cushion layer (520) attached to the upper edge of the inner peripheral wall of the outer cover body (200).

10. The air duct cover mounting structure of a range hood according to claim 9, characterized in that: The convex bump (510) protrudes from the outer peripheral wall of the inner cover body (300) by a distance greater than the thickness of the cushion layer (520).

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