Hinge structure and range hood with same

Abstract

The utility model provides a hinge structure and a range hood with the same, and belongs to the technical field of kitchen appliances, the hinge structure comprises a first support, a rotating arm and a second support, the first support comprises a connecting part and a fixing part, the connecting part is connected to a range hood shell, and the fixing part is fixedly connected to the connecting part; one end of the rotating arm is fixedly connected to the fixed part; one end of the second support is fixedly connected to the smoke gathering plate assembly, and the other end is rotatably connected to the other end of the rotating arm. The smoke gathering plate can be prevented from being deformed due to external force when rotating around the hinge rotating shaft, and smooth opening of the smoke gathering plate is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field, especially a kind of hinge structure and range hood with it. BACKGROUND

[0002] With the iteration of new form and new appearance products in the industry, more and more ultra-thin wall embedded range hood products appear in the market. Ultra-thin means that the size of the shell and the air inlet passage of the range hood is compressed, and the reduction of the thickness of the air inlet passage will weaken the oil suction and exhaust capacity. To address the adverse effects of reduced shell thickness on smoke exhaust, a conventional design is to add a flip smoke board to the front side of the range hood shell. The smoke board is opened to expand the negative pressure area forward to enhance the smoke gathering effect and improve the smoke exhaust effect. The hinge structure plays an important role in controlling the opening angle of the door plate and increasing the smoke gathering effect. However, the hinge structure in the prior art has poor stability, and after the smoke board rotates around the hinge shaft multiple times, the hinge structure will be deformed due to external force, causing the smoke board to open and close smoothly. SUMMARY

[0003] The first technical problem to be solved by the utility model is to provide a hinge structure that uses double-sided fixation to prevent the smoke board from being deformed due to external force when rotating around the hinge shaft, ensuring smooth opening of the smoke board.

[0004] The second technical problem to be solved by the utility model is to provide a range hood with the above-mentioned hinge structure.

[0005] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is a range hood, the hinge structure includes:

[0006] A first bracket includes a connecting part and a fixed part. The connecting part is connected to the range hood shell, and the fixed part is fixedly connected to the connecting part.

[0007] A rotating arm is fixedly connected to one end of the fixed part.

[0008] A second bracket is fixedly connected to one end of the smoke board assembly and rotatably connected to the other end of the rotating arm.

[0009] According to an embodiment of the utility model, the connecting part includes a top plate connected to the top wall of the range hood shell. The front end of the top plate is bent downward to form a first flange, and the first flange is connected to the front side wall of the range hood shell.

[0010] According to an embodiment of the utility model, the fixed part includes:

[0011] A vertical plate is vertically connected between the top plate and the first flange.

[0012] A fixed arm is connected to the lower part of the one side of the vertical plate close to the first flange, and the other end extends to the direction of the rotating arm and is connected with the rotating arm.

[0013] According to an embodiment of the utility model, the one side of the vertical plate away from the fixed arm is bent to form a second flange inside the range hood shell, and the bottom of the vertical plate is bent to form a third flange inside the range hood shell.

[0014] According to an embodiment of the utility model, the vertical plate is provided with a reinforcing rib.

[0015] According to an embodiment of the utility model, the hinge structure further includes a rotating shaft assembly connected between the second support and the rotating arm.

[0016] According to an embodiment of the utility model, the second support includes:

[0017] An L-shaped plate is connected to the smoke collection plate assembly and includes a horizontal plate segment and a vertical plate segment connected to the horizontal plate segment.

[0018] A connecting arm is connected to the one side of the vertical plate segment close to the rotating arm, and the connecting arm and the rotating arm are rotationally connected.

[0019] The utility model provides a kind of range hood to solve the technical scheme for the second technical problem described above: a kind of range hood, the range hood includes:

[0020] The hinge structure as claimed in any one of the above first aspects;

[0021] A shell assembly includes a range hood shell and a smoke collection hood connected to the front end of the range hood shell, and the smoke collection hood is provided with a smoke inlet;

[0022] A smoke collection plate assembly is arranged on the front side of the smoke inlet and is connected to the second support, and is used to open and close the smoke inlet.

[0023] Wherein, the smoke collection plate assembly is rotated by the cooperation of the second support, the rotating arm and the first support, and when the smoke collection plate assembly is configured to be closed, the inner side surface of the smoke collection plate assembly is abutted to the outer surface of the smoke collection hood.

[0024] According to an embodiment of the utility model, the smoke collection plate assembly includes, from outside to inside, a smoke collection plate, a lining plate and a back plate, the back plate is recessed to form a plurality of open grooves in the direction of the lining plate, and the inside of the open groove forms an air inlet cavity.

[0025] Wherein, when the smoke plate assembly is configured to the closed state, the opening end of the opening slot abuts the outer side of the smoke cover, and the oil fume enters the smoke inlet through the air inlet cavity.

[0026] According to an embodiment of the present application, the L-shaped plate is fixed to the front side of the lining plate, the horizontal plate segment and the back plate are connected with a mounting block, the lining plate and the back plate are respectively provided with a first through hole corresponding to the connecting arm, and the lining plate is further provided with a second through hole corresponding to the mounting block, wherein the connecting arm passes through the first through hole and is connected to the rotating arm, and the mounting block passes through the second through hole and is fixed to the back plate.

[0027] Compared with the prior art, the present application has the following advantages or beneficial effects:

[0028] The first support is fixed on two sides, and compared with the single-side fixing mode, the structural stability of the support is improved, the deformation of the shell caused by external force when the smoke plate rotates around the hinge shaft is prevented, and the opening of the smoke plate is ensured to be smooth.

[0029] The smoke extractor has the functions of the hinge structure, and when the smoke plate is opened by the same angle, the distance between the back plate of the smoke plate assembly and the air inlet after the smoke plate is opened is larger than that of a conventional smoke extractor, a larger smoke gathering area can be formed, the escape of oil fume is prevented, the smoke gathering ability is greatly improved, the probability of contact with oil fume is reduced, and the amount of adhered dirt is less. BRIEF DESCRIPTION OF DRAWINGS

[0030] The above and other features and advantages of the present application will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0031] Figure 1 is a schematic view of a hinge structure according to an example embodiment.

[0032] Figure 2 is a first exploded schematic view of a hinge structure according to an example embodiment.

[0033] Figure 3 is a second exploded schematic view of a hinge structure according to an example embodiment.

[0034] Figure 4 is a schematic view of a smoke extractor according to an example embodiment.

[0035] Figure 5 is a state schematic view of a smoke extractor according to an example embodiment.

[0036] Figure 6is a connection diagram of a hinge structure, a shell assembly and a fume board assembly according to an exemplary embodiment.

[0037] Figure 7 is a connection diagram of a first support and an outer shell according to an exemplary embodiment.

[0038] Figure 8 is a connection diagram of a fume board assembly and a hinge structure according to an exemplary embodiment.

[0039] Figure 9 is a relative position diagram of a fume board assembly and a hinge structure according to an exemplary embodiment.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] 1. first support; 11, connection part; 111, top plate; 112, first flange; 12, fixing part; 121, vertical plate; 1211, second flange; 1212, third flange; 1213, reinforcing rib; 122, fixing arm;

[0042] 2. rotating arm;

[0043] 3. second support; 31, L-shaped plate; 311, horizontal plate segment; 312, vertical plate segment; 32, connecting arm; 33, mounting block;

[0044] 4. rotating shaft assembly;

[0045] 5. shell assembly; 51, range hood shell; 52, fume collecting cover;

[0046] 6. fume board assembly; 61, fume board; 62, backing plate; 621, first through hole; 622, second through hole; 63, back plate; 631, open slot. DETAILED DESCRIPTION

[0047] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings; however, these embodiments can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the several views of the drawings, and description of the same elements will be omitted from description of other figures where appropriate with the understanding that no redundancy is implied.

[0048] The terms "one", "a", "an", "the" are used to mean one or more than one, unless the context clearly indicates otherwise. The term "comprises" and variations thereof such as "comprising" and "comprises" mean that the elements listed after the word are included, but not to the exclusion of additional elements that are not listed.

[0049] The utility model discloses an embodiment provides a hinge structure, as shown in the utility model discloses a hinge structure, including first support 1, rotating arm 2 and second support 3, one end of rotating arm 2 is fixedly connected in fixed portion 12, one end of second support 3 is fixedly connected in gather smoke board subassembly 6, and the other end of second support 3 and the other end of rotating arm 2 are rotationally connected, and first support 1 includes connecting portion 11 and fixed portion 12, and connecting portion 11 is connected on range hood shell 51, and fixed portion 12 is fixedly connected in connecting portion 11. Figures 1-3 The cooperation of the first support 1, the rotating arm 2 and the second support 3 can not only realize the rotation of the gather smoke board subassembly 6, but also the first support 1 is fixed on two sides, so that the structural stability of the support is improved compared with the single-side fixing mode, the deformation of the range hood shell 51 caused by external force during the rotation of the gather smoke board 61 around the hinge rotating shaft is prevented, and the smooth opening and closing of the gather smoke board 51 is caused.

[0050] In one preferred embodiment of the utility model, as shown in Figures 1-3 The connecting portion 11 includes a top plate 111 connected to the top wall of the range hood shell 51, and the front end of the top plate 111 is bent downward to form a first flange 112 connected to the front side wall of the range hood shell 51. The top plate 111 and the first flange 112 are fixed to the top wall and the side wall of the range hood shell 51 respectively, the connection stability of the first support 1 and the range hood shell 51 is improved, the smooth opening and closing of the gather smoke board 51 is ensured, and the user experience is improved.

[0051] In one preferred embodiment of the utility model, as shown in Figures 1-3 The fixed portion 12 includes a vertical plate 121 and a fixed arm 122, the vertical plate 121 is connected perpendicularly between the top plate 111 and the first flange 112, one end of the fixed arm 122 is connected to the lower part of the side of the vertical plate 121 close to the first flange 112, and the other end of the fixed arm 122 extends to the direction of the rotating arm 2 and is connected with the rotating arm 2. The force acting on the gather smoke board 61 during the opening and closing process is transmitted to the vertical plate 121 through the fixed wall 122, and the top plate 111, the first flange 112 and the vertical plate 121 are connected with each other and then connected to the range hood shell 51, so that a stable triangular structure is formed, and the structural strength and stability of the first support 1 are effectively improved.

[0052] In one preferred embodiment of the utility model, as shown in Figures 1-3 The side of the vertical plate 121 away from the fixed arm 122 is bent inwardly to the inside of the range hood shell 51 to form a second flange 1211, and the bottom of the vertical plate 121 is bent inwardly to the inside of the range hood shell 51 to form a third flange 1212. The structural strength of the vertical plate 121 itself is improved through the second flange 1211 and the third flange 1212, and deformation of the gather smoke board 61 after multiple opening and closing is avoided.

[0053] In one preferred embodiment of the utility model, asFigures 1-3 The vertical plate 121 shown is provided with reinforcing ribs 1213. This application utilizes sheet metal forming to provide reinforcing ribs 1213 in the middle of the vertical plate 121 to increase the structural strength of the vertical plate 121. The reinforcing ribs 1213 can be provided on one of the inner or outer sides of the vertical plate 121, or on both sides, as long as they can enhance the mechanical strength of the vertical plate 121; this application again does not impose any restrictions.

[0054] In a preferred embodiment of this utility model, such as Figures 1-3 The hinge structure shown also includes a pivot assembly 4 connecting the second bracket 3 and the rotating arm 2. The pivot assembly 4 includes rivets, plastic bushings, and plastic washers, wherein the pivot assembly 4 between the second bracket 3 and the rotating arm 2 is riveted together by a riveting process.

[0055] In a preferred embodiment of this utility model, such as Figures 1-3 The second bracket 3 shown includes an L-shaped plate 31 and a connecting arm 32. The L-shaped plate 31 includes a horizontal plate segment 311 and a vertical plate segment 312 connected to the horizontal plate segment 311. The L-shaped plate 31 is connected to the smoke-collecting plate assembly 6. The connecting arm 32 is connected to the side of the vertical plate segment 312 near the rotating arm 2, and the connecting arm 32 and the rotating arm 2 are rotatably connected. The L-shaped plate 31 is fixed to the liner plate 62, and the mounting block 33 passes through the liner plate 62 and is fixed to the back plate 63, thereby improving the connection strength between the second bracket 3 and the smoke-collecting plate assembly 6.

[0056] This utility model embodiment provides a range hood, such as Figures 4-9The illustrated range hood includes the hinge structure, the shell assembly 5 and the smoke plate assembly 6, the shell assembly 5 includes the hood shell 51 and the smoke collecting cover 52 connected to the front end of the hood shell 51, the smoke collecting cover 52 is provided with a smoke inlet, the smoke plate assembly 6 is arranged on the front side of the smoke inlet and is connected to the second support 3 for opening and closing the smoke inlet. The smoke plate assembly 6 rotates through the cooperation of the second support 3, the rotating arm 2 and the first support 1, and when the smoke plate assembly 6 is configured in the closed state, the inner side surface of the smoke plate assembly 6 abuts against the outer surface of the smoke collecting cover 52. That is, the smoke plate assembly 6 in the application is arranged on the outer side surface of the hood shell 51 by the hinge structure, the outer side surface of the smoke plate assembly 6 is always located on the outer side of the outer surface of the smoke collecting cover 52 and has a certain height difference therebetween, so that the fixed smoke plate assembly 6 forms a floating effect, and when the smoke plate assembly 6 is configured in the closed state, the smoke plate 61 is higher than the glass panel by a certain distance H, the width dimension of the smoke plate 61 is set as W, and in the case that the smoke plate 61 is opened by the same angle, the smoke plate assembly 6 according to the scheme has an increased smoke plate area H*W. That is, compared with the conventional scheme that the smoke plate 61 is flush with the outer shell after being closed, in the case that the smoke plate 61 is opened by the same angle, the distance between the back plate of the smoke plate assembly 6 and the air inlet after being opened is larger than that of the conventional hood, a larger smoke plate area can be formed, oil smoke escape is prevented, and the smoke plate capacity is greatly improved. The probability of the back plate contacting oil smoke is reduced, the amount of adhered oil dirt is less, and the risk of oil dirt dropping is reduced.

[0057] In a preferred embodiment of the utility model, as shown in the drawings, Figures 4-9 The smoke plate assembly 6 includes the smoke plate 61, the lining plate 62 and the back plate 63 from outside to inside, the back plate 63 is recessed towards the lining plate 62 to form a plurality of open grooves 631, and the inside of the open grooves 631 forms an air inlet cavity; wherein when the smoke plate assembly 6 is configured in the closed state, the open ends of the open grooves 631 abut against the outer side of the smoke collecting cover 52, and oil smoke enters the smoke inlet through the air inlet cavity. In the application, the open grooves 631 are at least three and are arranged on the left side, the right side and the bottom side of the smoke inlet, as shown in the drawings, Figures 7-8 If the open grooves 631 are three, the three air inlet cavities are a left recessed cavity, a right recessed cavity and a lower recessed cavity, and when the smoke plate 61 is closed, a certain gap is formed between the left recessed cavity, the right recessed cavity and the lower recessed cavity on the back plate 63 and the smoke inlet of the smoke collecting cover 52. When the amount of oil smoke generated during cooking is small, the smoke plate 61 does not need to be opened, only the fan needs to be opened, and the gap between the open grooves 631 on the back of the smoke plate 61 and the smoke collecting cover 52 can also suck and exhaust the oil smoke clean, which is suitable for scenes such as western cooking with small amount of oil smoke and user use of multi-layer steamers with special requirements for the cooking space below the hood.

[0058] In a preferred embodiment of the utility model, as shown in the drawings, Figures 8-9The L-shaped plate 31 is fixed to the front side of the backing plate 62, the mounting block 33 is connected between the horizontal plate segment 311 and the back plate 63, the backing plate 62 and the back plate 63 are respectively provided with the first through hole 621 corresponding to the connecting arm 32, the backing plate 62 is further provided with the second through hole 622 corresponding to the mounting block 33, wherein the connecting arm 32 passes through the first through hole 621 and is connected to the rotating arm 2, and the mounting block 33 passes through the second through hole 622 and is fixed to the back plate 63. After the L-shaped plate 31 is fixed to the backing plate 62, the connecting arm 32 passes through the first through hole 621, the mounting block 33 passes through the second through hole 622, the backing plate 62 is fixedly connected with the gathering plate 61 by adhesive after the second support 3 is connected with the backing plate 62, the connecting arm 32 is connected with the rotating arm 2, the mounting block 33 is connected with the back plate 63, and the back plate 63 is screw-fastened above the backing plate 62. Thus, the second support 3 and the gathering plate assembly 6 are connected together. Then, the rotating arm 2 of the hinge assembly is screw-fastened and connected with the fixed arm 122 on the first support 1, and the installation of the gathering plate assembly 6 and the smoke machine shell 5 is completed. In the application, the second support 3 is connected between the backing plate 62 and the back plate 63, and then the gathering plate 61, the backing plate 62 and the back plate 63 are combined together, so that the connection strength of the gathering plate assembly 6 and the second support 3 is effectively improved, the stability of the hinge structure is improved, and the smoothness of the opening and closing of the gathering plate 61 is ensured.

[0059] In the embodiments of the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integral connection. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0060] In the description of the embodiments of the present application, it should be understood that the positions or location relationships indicated by the terms "upper", "lower" and the like are based on the positions or location relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the embodiments of the present application.

[0061] In the description of the present application, the description of the terms "one embodiment", "one preferred embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hinge structure, characterized by, Comprising A first support (1) comprising a connecting part (11) connected to a range hood shell (51) and a fixing part (12) fixed to the connecting part (11); A rotating arm (2) fixed to one end of the fixing part (12); A second support (3) fixed to one end of a smoke gathering plate assembly (6) and rotatably connected to the other end of the rotating arm (2); The connecting part (11) comprises a top plate (111) connected to the top wall of the range hood shell (51), the front end of the top plate (111) is bent downward to form a first flange (112), and the first flange (112) is connected to the front side wall of the range hood shell (51).

2. The hinge structure according to claim 1, characterized in that The fixing part (12) comprises: A vertical plate (121) connected vertically between the top plate (111) and the first flange (112); A fixing arm (122) connected to the lower part of the vertical plate (121) on the side close to the first flange (112) and extending to the direction of the rotating arm (2) and connected to the rotating arm (2).

3. The hinge structure according to claim 2, characterized in that The side of the vertical plate (121) away from the fixing arm (122) is bent inward to form a second flange (1211) of the range hood shell (51), and the bottom of the vertical plate (121) is bent inward to form a third flange (1212) of the range hood shell (51).

4. The hinge structure according to claim 2, characterized in that The vertical plate (121) is provided with a reinforcing rib (1213).

5. The hinge structure according to claim 1, wherein Further comprising a rotating shaft assembly (4) connected between the second support (3) and the rotating arm (2).

6. The hinge structure according to any one of claims 1 to 5, characterized in that The second support (3) comprises: An L-shaped plate (31) connected to the smoke gathering plate assembly (6) and comprising a horizontal plate segment (311) and a vertical plate segment (312) connected to the horizontal plate segment (311); A connecting arm (32) connected to the side of the vertical plate segment (312) close to the rotating arm (2), and the connecting arm (32) and the rotating arm (2) are rotatably connected.

7. A range hood characterized by Comprising: The hinge structure of claim 6; A shell assembly (5) comprising a range hood shell (51) and a smoke collecting cover (52) connected to the front end of the range hood shell (51), the smoke collecting cover (52) being provided with a smoke inlet; A smoke gathering plate assembly (6) provided on the front side of the smoke inlet and connected to the second support (3) for opening and closing the smoke inlet; Wherein, the smoke gathering plate assembly (6) is rotated through the cooperation of the second support (3), the rotating arm (2) and the first support (1), and when the smoke gathering plate assembly (6) is configured to be in a closed state, the inner side surface of the smoke gathering plate assembly (6) abuts against the outer surface of the smoke collecting cover (52).

8. The hood according to claim 7, characterized in that The smoke gathering plate assembly (6) comprises, from outside to inside, a smoke gathering plate (61), a backing plate (62) and a back plate (63), the back plate (63) is recessed in the direction of the backing plate (62) to form a plurality of open grooves (631), and the inside of the open grooves (631) forms an air inlet cavity; Wherein, when the smoke board assembly (6) is configured to be closed, the opening end of the opening slot (631) abuts the outer side of the smoke cover (52), and the oil fume enters the smoke inlet through the air inlet cavity.

9. The hood according to claim 8, characterized in that, The L-shaped plate (31) is fixed to the front side of the lining plate (62), a mounting block (33) is connected between the horizontal plate segment (311) and the back plate (63), the lining plate (62) and the back plate (63) are respectively provided with first through holes (621) corresponding to the connecting arms (32), the lining plate (62) is further provided with a second through hole (622) corresponding to the mounting block (33), wherein the connecting arms (32) pass through the first through holes (621) and are connected to the rotating arms (2), and the mounting block (33) passes through the second through hole (622) and is fixed to the back plate (63).

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