Range hood

Abstract

The utility model discloses a range hood which comprises a fixed panel, a movable panel arranged adjacent to the fixed panel, a decorative strip arranged between the fixed panel and the movable panel and a fixed mounting base used for fixedly mounting the fixed panel, and the decorative strip is fixed with the fixed panel; the range hood further comprises an air inlet, and the movable panel and the fixed installation base are arranged in an overturning mode so that the air inlet can be opened and closed. The range hood further comprises a rotating shaft support and a rotating shaft pin, the rotating shaft support is adjacent to the end of the decoration strip in the length direction, the rotating shaft support is fixed to the fixed installation foundation, the movable panel comprises a sleeve arranged between the decoration strip and the rotating shaft support, and the rotating shaft pin penetrates through the rotating shaft support, the sleeve and the decoration strip. The rotating shaft pin is fixed to the rotating shaft support, and the sleeve is rotationally connected with the rotating shaft pin.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to an oil fume extractor. Background Art

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. In order to improve the oil fume absorption effect, range hoods usually have a smoke baffle at the air inlet. When opened, it can expand the smoke collection range, thereby improving the oil fume absorption effect. The panels at the air inlet of the existing range hoods can usually be divided into one-stage (full screen), two-stage (one stage is a fixed panel, and one stage is a movable panel, i.e., a smoke baffle) and three-stage (the upper and lower stages are fixed panels, and the middle stage is a movable panel, i.e., a smoke baffle). For two-stage or three-stage range hoods, since there are at least two independent panels on the same plane, there is a step difference between the fixed panel and the movable panel when the hood is turned off, which affects the refinement and beauty of the product's appearance.

[0003] The common solution is to add a fixed decorative strip between the two panels, with the middle part of the decorative strip higher than the surface of the two panels to separate the two panels and visually reduce the user's perception of the step difference between the panels. For example, a Chinese patent with application number 202221697575.X discloses a smoke hood and a range hood, wherein the smoke hood includes: a front panel, the front panel includes an upper plate and a lower plate connected up and down, the upper plate is covered with an upper decorative plate, and the lower plate is hinged with a lower decorative plate, the smoke hood also includes a decorative strip, the decorative strip extends in the left and right directions, the decorative strip covers the edge formed at the connection between the upper plate and the lower plate, and is used to fill the gap between the upper decorative strip and the lower decorative strip, the circumferential side wall of the decorative strip includes a circular arc surface, and the upper edge of the lower decorative plate rotates around the circular arc surface to open or close.

[0004] However, the above structure does not really solve the step difference between the panels. After the range hood has been working for a long time, the step difference may increase. In addition, the gap between the smoke baffle with flip function and the fixed decorative strip will be difficult to control, affecting the movement reliability and user experience. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood in view of the deficiencies in the above-mentioned prior art, which indirectly controls the step difference between the fixed panel and the movable panel by controlling the gap between the smoke baffle and the decorative strip, thereby improving movement reliability and user experience.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a range hood, comprising a fixed panel, a movable panel arranged adjacent to the fixed panel, a decorative strip arranged between the fixed panel and the movable panel, and a fixed installation base for fixing and installing the fixed panel, wherein the decorative strip is fixed to the fixed panel;

[0007] The range hood further comprises an air inlet, and the movable panel and the fixed mounting base are arranged to be flipped so as to be able to open and close the air inlet; the characteristics are:

[0008] The range hood also includes a rotating shaft support and a rotating shaft pin. The rotating shaft support and the end of the decorative strip in the length direction are arranged adjacent to each other. The rotating shaft support is fixed to a fixed mounting base. The movable panel includes a sleeve arranged between the decorative strip and the rotating shaft support. The rotating shaft pin passes through the rotating shaft support, the sleeve and the decorative strip. The rotating shaft pin is fixed to the rotating shaft support, and the sleeve is rotatably connected to the rotating shaft pin.

[0009] By setting a fixed pivot support and a pivot pin fixed to the pivot support, the pivot pin passes through the fixed decorative strip and the flippable movable panel respectively, thereby enabling the gap between the smoke shield and the decorative strip to be controlled by the pivot pin (to avoid changes in the gap when the movable panel is flipped), thereby indirectly controlling the step difference between the fixed panel and the movable panel, improving the movement reliability of the movable panel, and improving the user experience.

[0010] Furthermore, an end hole is formed at the end of the decorative strip in the length direction, a first connection hole is formed in the sleeve, a second connection hole is formed in the shaft support, the second connection hole, the end hole and the first connection hole are all circular holes and are coaxially arranged, and the shaft pin is coaxial with the first connection hole. Thus, the shaft pin serves as the rotation center of the movable panel and the axis of the decorative strip and the fixed panel, further improving the clearance control accuracy between the movable panel and the decorative strip (fixed panel).

[0011] Preferably, the distance from the center of the end hole of the decorative strip to the bottom surface of the fixed panel is d1, the distance from the center of the sleeve to the bottom surface of the movable panel is d2, and d1=d2 is satisfied, thereby eliminating the step difference between the fixed panel and the movable panel and improving the user experience.

[0012] Preferably, the pivot pin includes a head, a first connecting section and a second connecting section in sequence along the axial direction, an end surface of the decorative strip is formed with an end hole, a first connecting hole is formed in the sleeve, and a second connecting hole is formed in the pivot support, the head abuts against an end of the second connecting hole of the pivot support away from the decorative strip, the first connecting section is located in the second connecting hole, the second connecting hole is a threaded hole, and the first connecting section is a threaded section, so that the first connecting section and the pivot support are threadedly connected and fixed, and the second connecting section passes through the first connecting hole and penetrates into the end surface hole, thereby realizing the fixation of the pivot pin to the pivot support and the rotational connection with the movable panel.

[0013] Preferably, the fixed panel includes a first glass panel and a first back panel fixed to the back of the first glass panel, the movable panel includes a second glass panel, a second back panel fixed to the back of the second glass panel, and a bracket fixed to the second glass panel, the decorative strip is provided with a mounting portion fixed to the first back panel, and the bracket includes the sleeve.

[0014] Furthermore, the bracket includes a flat bracket body, a first flange formed by bending the bracket body into the smoke hood, the bracket body is fixed to the second glass panel, the first flange passes through the second back plate, the sleeve is arranged at the end of the first flange close to the decorative strip, and the second back plate covers the bracket, which can improve the connection stability of the bracket.

[0015] Furthermore, the range hood includes a smoke hood and a box body arranged on the smoke hood, the box body serves as the fixed installation base, the smoke hood can be raised and lowered relative to the box body, the air inlet is formed on the smoke hood, and the smoke hood can be lowered to allow the air inlet to be close to the smoke source when working to improve the oil fume extraction effect, while the smoke hood can be raised when not working to reduce space occupancy.

[0016] Furthermore, the movable panel includes a bracket, the bracket includes a second flange, the range hood also includes a moving mechanism, the moving mechanism includes a fixed frame and a driving hinge, the fixed frame is fixed in the smoke hood, one end of the driving hinge is rotatably connected to the fixed frame, and the other end of the driving hinge is rotatably connected to the second flange of the bracket of the movable panel, thereby, the movable panel can be flipped as the smoke hood is raised or lowered, without the need for an additional driving mechanism, and the structure is simple.

[0017] Compared with the prior art, the advantages of the utility model are: by setting a fixed pivot support and a pivot pin fixed to the pivot support, the pivot pin passes through the fixed decorative strip and the flippable movable panel respectively, thereby enabling the gap between the smoke shield and the decorative strip to be controlled by the pivot pin (to avoid changes in the gap when the movable panel is flipped), thereby indirectly controlling the step difference between the fixed panel and the movable panel, improving the movement reliability of the movable panel, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a range hood in a closed state according to an embodiment of the utility model;

[0019] Figure 2 A cross-sectional view of a range hood in a closed state according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the fixed panel, decorative strip and movable panel of the range hood according to the embodiment of the utility model;

[0021] Figure 4 for Figure 3 A further decomposed schematic diagram;

[0022] Figure 5 for Figure 4 A schematic diagram of the partial enlargement of Ⅰ;

[0023] Figure 6 It is a cross-sectional view of a fixed panel, a decorative strip and a movable panel of a range hood according to an embodiment of the utility model;

[0024] Figure 7 for Figure 6 A partial II enlarged schematic diagram of

[0025] Figure 8 It is a schematic diagram of the exploded structure of the movable panel and part of the motion mechanism of the range hood according to the embodiment of the utility model;

[0026] Fig. 9 A schematic diagram of a range hood in an open state according to an embodiment of the utility model;

[0027] Fig.10 This is a cross-sectional view of the range hood in the open state according to an embodiment of the utility model. DETAILED DESCRIPTION

[0028] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which 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. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0030] See also Figures 1 to 8A range hood includes a smoke hood 1 and a box body 2 disposed on the smoke hood 1, wherein the box body 2 is used to dispose a fan system (not shown). A fixed panel 31 is disposed at the bottom of the box body 2, and the smoke hood 1 has an opening, and a movable panel 32 is disposed at the opening, and the movable panel 32 can be flipped relative to the smoke hood 1, thereby serving as a commonly used smoke baffle. In the present embodiment, the opening of the smoke hood 1 is formed on its front side, and the front side of the smoke hood 1 gradually tilts downward from top to bottom, thereby making the whole range hood into a top and side suction integrated form. Alternatively, it may be a top suction type, a side suction type or a low suction type, etc., without limiting the form of the range hood. When selecting other forms of range hoods, it is known that the housing 2 is not necessary, and the fan system can be at least partially set inside the smoke hood 1, or can be set outside the smoke hood 1 and the housing 2, such as on the ceiling, etc., but it is necessary to ensure that the position of the fixed panel 31 remains unchanged. For example, the fixed panel 31 can be set on the smoke hood 1 for the side suction type, and the smoke hood 1 serves as the fixed installation base of the fixed panel 31 (the housing 2 is the fixed installation base in this embodiment). In addition, the fixed panel 31 and the movable panel 32 are arranged adjacent to each other, and a decorative strip 33 is arranged between the two. In this embodiment, only one fixed panel 31 is set to form a two-stage design. Alternatively, two fixed panels 31 can also be set, which are respectively arranged on both sides of the movable panel 32 to form a three-stage design.

[0031] In the closed state, the opening corresponding to the fume hood 1 and the movable panel 32 constitutes an air inlet 11. When the range hood is turned off, the movable panel 32 closes the air inlet 11, and when the range hood is turned on, the movable panel 32 opens the air inlet 11. Oil smoke can be sucked in through the air inlet 11, and then flow into the box body 2, and discharged by the fan system in the box body 2.

[0032] In order to enable the movable panel 32 to be turned over relative to the smoke collecting hood 1, one end of the movable panel 32 is configured as a connecting end, which is movably connected to the smoke collecting hood 1, and the other end opposite is configured as a free end, which can be turned over and opened in a direction away from the smoke collecting hood 1. Figure 2 The connection end is the front end of the movable panel 32 or a position close to the front end in the closed state, and the free end is the rear end of the movable panel 32 in the closed state. The decorative strip 33 is disposed adjacent to the connection end of the movable panel 32 .

[0033] The fixed panel 31 includes a first glass panel 311 and a first back panel 312, and the movable panel 32 includes a second glass panel 321 and a second back panel 322. The first back panel 312 can be fixed to the back of the first glass panel 311 by bonding, and the second back panel 322 can be fixed to the back of the second glass panel 321 by bonding. Here, "back" refers to the side of each glass panel facing the inside of the smoke hood 1, not directly facing the smoke. The decorative strip 33 can be integrally formed with a mounting portion 332, and the mounting portion 332 can be fixed to the first back panel 312 by screws, so that the decorative strip 33 is fixed to the fixed panel 31. The decorative strip 33 can be roughly cylindrical, and the transition position between it and the mounting portion 332 can be flat.

[0034] The movable panel 32 also includes a bracket 323, and the bracket 323 has two, one of which is arranged near the left end of the second back plate 322, and the other is arranged near the right end of the second back plate 322. The bracket 323 and the second back plate 322 can also be fixed to the second glass panel 321 by passing through the second back plate 322 in an adhesive manner, so that the second back plate 322 covers the bracket 323, which can improve the connection reliability. Each bracket 323 includes a flat bracket body 3231, a first flange 3232 formed by bending the bracket body 3231 into the smoke hood 1, and a second flange 3233 formed by bending the bracket body 3231 into the smoke hood 1, the first flange 3232 can be located at a position of the bracket body 3231 close to the outer side (left or right side) of the movable panel 32, and the second flange 3233 can be located in the middle of the bracket body 3231. The bracket body 3231 is fixed to the second glass panel 321, and the two flanges pass through the second back plate 322. A sleeve 3234 is provided at the end of the first flange 3232 close to the decorative strip 33 . A first connecting hole 3235 is formed in the sleeve 3234 . The first connecting hole 3235 passes through the left and right ends of the sleeve 3234 , and is preferably a circular hole.

[0035] The length of the decorative strip 33 ( Figure 1 The length of the decorative strip 33 is smaller than the length of the fixed panel 31 and the movable panel 32, and the length of the fixed panel 31 and the movable panel 32 are substantially the same. Figure 1The range hood further comprises a shaft support 34, and the shaft support 34 has two shaft supports 34, one of which is located on the left side of the decorative strip 33, and the other is located on the right side of the decorative strip 33. The shaft support 34 and the decorative strip 33 are arranged side by side, and both extend in the left and right directions. A second connecting hole 341 is formed in the shaft support 34, and the second connecting hole 341, the end hole 331 and the first connecting hole 3235 are all circular and coaxially arranged. The shaft support 34 is fixed to the smoke collecting hood 1, and the second connecting hole 341 runs through the left and right ends of the shaft support 34.

[0036] The range hood further comprises a rotating shaft pin 35, which comprises a head 351, a first connecting section 352 and a second connecting section 353 in sequence along its axial direction. The rotating shaft pin 35 is inserted from the end of the rotating shaft support 34 away from the decorative strip 33, and the size of the head 351 is larger than the first connecting section 352, so it abuts against the end of the second connecting hole 341 of the rotating shaft support 34 away from the decorative strip 33, and the first connecting section 352 is located in the second connecting hole 341, the second connecting hole 341 is a threaded hole, and the first connecting section 352 is a threaded section, and the two are threadedly connected, so that the rotating shaft support 34 and the rotating shaft pin 35 are fixed. The second connecting section 353 penetrates into the first connecting hole 3235 and the end hole 331. The second connecting section 353 is a smooth section without threads. The hole walls of the first connecting hole 3235 and the end hole 331 are smooth. Therefore, the sleeve 3234 (movable panel 32) can rotate relative to the rotation axis extending along the left and right directions of the rotating shaft pin 35. The rotating shaft pin 35 is coaxial with the first connecting hole 3235, providing a fixed rotation center for the rotation of the movable panel 32, and at the same time providing an axis for positioning the fixed panel 31.

[0037] By controlling the distance (d1) from the center of the end hole 331 of the decorative strip 33 to the bottom surface of the fixed panel 31 and the distance (d2) from the center of the sleeve 3234 to the bottom surface of the movable panel 32, so that d1=d2, the bottom surface of the fixed panel 31 and the bottom surface of the movable panel 32 can be made to be in the same plane, thereby eliminating the height step difference between the two surfaces. The "bottom surface" refers to the surface of each panel facing the smoke hood 1 and the box body 2 in the closed state.

[0038] The range hood further includes a motion mechanism, which can drive the smoke hood 1 to rise and fall relative to the housing 2, and when the smoke hood 1 rises and falls, the movable panel 32 can be flipped relative to the smoke hood 1. The motion mechanism includes a linear drive module, which drives the smoke hood 1 to rise and fall, and is not shown in the figure, such as a combination of a motor, a screw and a nut used in a commonly used range hood. The motion mechanism also includes a fixed frame 41, a rotating shaft 42 and a driving hinge 43, wherein the fixed frame 41 is fixed in the smoke hood 1, and a rotating shaft 42 (the axis extends in the left and right directions) is arranged on it, one end of the driving hinge 43 is rotatably connected to the fixed frame 41 through the rotating shaft 42 (the rotating shaft 42 can be fixed relative to the fixed frame 41 and the driving hinge 43 can rotate relative to the rotating shaft 42, or the rotating shaft 42 can rotate relative to the fixed frame 41 and is fixed to the driving hinge 43), and the other end of the driving hinge 43 is rotatably connected to the second flange 3233 of the bracket 323 of the movable panel 32.

[0039] See also Figure 1 and Figure 2 When the smoke hood 1 rises to the highest position, the movable panel 32 is closed and flush with the fixed panel 31; see Fig. 9 and Fig.10 When the smoke hood 1 descends, since the movable panel 32 is rotatably connected to the smoke hood 1 and the decorative strip 33, as the smoke hood 1 descends, the movable panel 32 flips relative to the smoke hood 1 and the decorative strip 33. When the smoke hood 1 descends to the lowest position, the movable panel 32 flips and opens to the maximum angle position.

Claims

1. A range hood, comprising a fixed panel (31), a movable panel (32) arranged adjacent to the fixed panel (31), a decorative strip (33) arranged between the fixed panel (31) and the movable panel (32), and a fixed installation base for fixing the fixed panel (31), wherein the decorative strip (33) is fixed to the fixed panel (31); The range hood further comprises an air inlet (11), and the movable panel (32) is arranged to be flipped with the fixed installation base so as to be able to open and close the air inlet (11); the characteristics are: The range hood further comprises a rotating shaft support (34) and a rotating shaft pin (35); the rotating shaft support (34) and the ends of the decorative strip (33) in the length direction are arranged adjacent to each other; the rotating shaft support (34) is fixed to a fixed installation base; the movable panel (32) comprises a sleeve (3234) arranged between the decorative strip (33) and the rotating shaft support (34); the rotating shaft pin (35) passes through the rotating shaft support (34), the sleeve (3234) and the decorative strip (33); the rotating shaft pin (35) is fixed to the rotating shaft support (34); and the sleeve (3234) is rotatably connected to the rotating shaft pin (35).

2. The range hood according to claim 1, characterized in that: An end hole (331) is formed at the end of the decorative strip (33) in the length direction, a first connecting hole (3235) is formed in the sleeve (3234), and a second connecting hole (341) is formed in the rotating shaft support (34); the second connecting hole (341), the end hole (331) and the first connecting hole (3235) are all circular holes and are coaxially arranged, and the rotating shaft pin (35) and the first connecting hole (3235) are coaxial.

3. The range hood according to claim 2, characterized in that: The distance from the center of the end hole (331) of the decorative strip (33) to the bottom surface of the fixed panel (31) is d1, and the distance from the center of the sleeve (3234) to the bottom surface of the movable panel (32) is d2, and d1=d2 is satisfied.

4. The range hood according to claim 1, characterized in that: The rotating shaft pin (35) includes a head (351), a first connecting section (352) and a second connecting section (353) in sequence along the axial direction; an end portion of the decorative strip (33) in the length direction is formed with an end hole (331); a first connecting hole (3235) is formed in the sleeve (3234); a second connecting hole (341) is formed in the rotating shaft support (34); the head (351) abuts against an end of the second connecting hole (341) of the rotating shaft support (34) away from the decorative strip (33); the first connecting section (352) is located in the second connecting hole (341); the second connecting hole (341) is a threaded hole; the first connecting section (352) is a threaded section, so that the first connecting section (352) and the rotating shaft support (34) are threadedly connected and fixed; the second connecting section (353) passes through the first connecting hole (3235) and penetrates into the end hole (331).

5. The range hood according to any one of claims 1 to 4, characterized in that: The fixed panel (31) comprises a first glass panel (311) and a first back panel (312) fixed to the back of the first glass panel (311); the movable panel (32) comprises a second glass panel (321), a second back panel (322) fixed to the back of the second glass panel (321), and a bracket (323) fixed to the second glass panel (321); the decorative strip (33) is provided with a mounting portion (332) fixed to the first back panel (312); and the bracket (323) comprises the sleeve (3234).

6. The range hood according to claim 5, characterized in that: The bracket (323) comprises a flat bracket body (3231), a first flange (3232) formed by bending the bracket body (3231) into the smoke hood (1), the bracket body (3231) is fixed to the second glass panel (321), the first flange (3232) passes through the second back panel (322), and the sleeve (3234) is arranged at the end of the first flange (3232) close to the decorative strip (33).

7. The range hood according to any one of claims 1 to 4, characterized in that: The range hood comprises a smoke hood (1) and a box body (2) arranged on the smoke hood (1); the box body (2) serves as the fixed installation base; the smoke hood (1) can be raised and lowered relative to the box body (2); and the air inlet (11) is formed on the smoke hood (1).

8. The range hood according to claim 7, characterized in that: The movable panel (32) comprises a bracket (323), the bracket (323) comprises a second flange (3233), the range hood further comprises a movement mechanism, the movement mechanism comprises a fixed frame (41) and a driving hinge (43), the fixed frame (41) is fixed in the smoke collecting hood (1), one end of the driving hinge (43) is rotatably connected to the fixed frame (41), and the other end of the driving hinge (43) is rotatably connected to the second flange (3233) of the bracket (323) of the movable panel (32).

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