Connecting rod, drive assembly and extractor hood

Abstract

This utility model provides a connecting rod, a drive assembly, and a range hood, relating to the field of kitchen appliance technology. The connecting rod mainly includes a rod body with at least one set of flow-guiding structures protruding from its side. These flow-guiding structures include an oil collection groove and multiple oil-guiding ribs. The multiple oil-guiding ribs are spaced apart along the length of the oil collection groove, and are curved, with their output ends pointing towards the opening of the oil collection groove. The oil collection groove includes a sealed end and an open end that are relatively far apart, and the liquid flow direction within the oil collection groove is configured to flow from the sealed end to the open end. According to the embodiments provided in this application, in a first position, the open end of the oil collection groove is higher than the sealed end, and oil flows along the oil-guiding ribs to the oil collection groove, where it is stored at the sealed end. In a second position, the open end of the oil collection groove is lower than the sealed end, and oil flows along the oil-guiding ribs to the oil collection groove, where it flows to the open end, where it flows out, thus preventing oil accumulation and dripping from the connecting rod.

Description

Technical Field

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

[0002] A range hood is a household appliance used to purify the kitchen environment. Its main function is to absorb and remove cooking fumes, steam, and odors produced during cooking, keeping the kitchen air fresh. Most range hoods have the connecting rod installed on the left or right side of the air inlet to reduce oil fume pollution. When the range hood's smoke collection panel is open, the connecting rod of the drive assembly spans across the oil fume area, causing oil to accumulate on the rod and easily drip down, affecting the user experience. Utility Model Content

[0003] This application addresses the shortcomings of existing methods by providing a connecting rod, a drive assembly, and a range hood to solve the technical problem of oil accumulation and dripping from the connecting rod in the prior art.

[0004] In the first aspect, embodiments of this application provide a connecting rod, which mainly includes a rod body. The side of the rod body protrudes to form at least one set of flow guiding structures. The flow guiding structures include an oil collecting groove and a plurality of oil guiding ribs. The plurality of oil guiding ribs are spaced apart along the length direction of the oil collecting groove. The oil guiding ribs are curved, and the output end of the oil guiding ribs points to the opening of the oil collecting groove. The oil collecting groove includes a sealed end and an open end that are relatively far apart. The liquid flow direction in the oil collecting groove is configured to flow from the sealed end to the open end.

[0005] As an optional implementation, the oil guide rib includes a first guide section and a second guide section in a straight line shape. The first guide section and the second guide section are connected at an obtuse angle. The second guide section is closer to the oil collection groove than the first guide section. The end of the second guide section closer to the oil collection groove serves as the output end of the oil guide rib.

[0006] As an optional implementation, the second guide section is close to the first end of the rod, and the first guide section is close to the second end of the rod; the oil collection groove is straight, the open end of the oil collection groove is close to the first end of the rod, and the closed end of the oil collection groove is close to the second end of the rod.

[0007] As an optional implementation, the first guide section is close to the top of the rod, and the second guide section is close to the bottom of the rod; the sealing end of the oil collection groove is close to the top of the rod, and the sealing end of the oil collection groove is close to the bottom of the rod.

[0008] As an optional implementation, the height of the oil guide rib protruding from the rod body is less than the width of the oil collection groove.

[0009] As an optional implementation, the oil guide rib forms a flow guiding plane on the side opposite to the oil collecting groove. The flow guiding plane is inclined from top to bottom towards the oil collecting groove, and the inclination direction of the flow guiding plane forms an acute angle with the extension direction of the oil collecting groove.

[0010] As an optional implementation, multiple sets of the flow guiding structures are formed on either side of the rod, arranged vertically.

[0011] As an optional implementation, the upper flow guiding structure in two adjacent sets of flow guiding structures is designated as the first structure, and the lower flow guiding structure in two adjacent sets of flow guiding structures is designated as the second structure; the opening end of the oil collecting groove in the first structure is closer to the first end of the rod body than the opening end of the oil collecting groove in the second structure.

[0012] Secondly, embodiments of this application provide a drive assembly, which mainly includes a motor, a drive rod, and a connecting rod as described in any of the foregoing embodiments; the drive rod is drivenly connected to the motor; and the connecting rod is connected to the drive rod.

[0013] Thirdly, this application provides a range hood, which mainly includes a smoke collection hood, a smoke gathering plate, an oil cup, and the driving assembly described in the foregoing embodiments. The smoke collection hood has a smoke collection chamber inside, with an oil leakage hole at the bottom communicating with the outside. The smoke collection hood has an air inlet communicating with the smoke collection chamber. The driving assembly is installed in the smoke collection chamber. The smoke gathering plate is located outside the air inlet of the smoke collection hood. The driving assembly is installed on the smoke collection hood, and one end of the connecting rod near the sealing end is connected to the back of the smoke gathering plate to drive the smoke gathering plate to open and close the air inlet. The open end is located inside the smoke collection chamber. The oil cup is installed at the bottom of the smoke collection hood.

[0014] This application provides a connecting rod, a drive assembly, and a range hood. The technical solutions provided by the embodiments of this application bring at least the following beneficial effects:

[0015] In the first position, the open end of the oil collection tank is higher than the sealed end. Oil flows along the oil guide ribs to the oil collection tank, which receives the oil. The oil in the oil collection tank flows to the sealed end for storage. In the second position, the open end of the oil collection tank is lower than the sealed end. Oil flows along the oil guide ribs to the oil collection tank, which flows to the open end. The oil flows out from the open end of the oil collection tank to avoid the problem of oil accumulating and dripping on the connecting rod.

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

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

[0018] Figure 1 A schematic diagram of a connecting rod provided in an embodiment of this application;

[0019] Figure 2 A schematic cross-sectional view of a connecting rod provided in an embodiment of this application;

[0020] Figure 3 A schematic diagram of a range hood's smoke collection plate in an open state, provided as an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of a range hood with its smoke collection plate in a closed state, provided as an embodiment of this application.

[0022] Figure labels and corresponding explanations:

[0023] 1: Rod body;

[0024] 2: Flow guiding structure; 21: Oil collecting groove; 22: Oil guiding rib; 221: First flow guiding section; 222: Second flow guiding section;

[0025] 3: Smoke hood;

[0026] 4: Smoke collecting plate;

[0027] 5: Oil cup. Detailed Implementation

[0028] This application is described in detail below. Examples of embodiments of this application are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of this application are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, elements, and / or components, but does not exclude the presence or addition of one or more other features, elements, components, and / or groups thereof. The term “and / or” as used herein includes all or any units and all combinations thereof of one or more associated listed items.

[0030] like Figure 1-2As shown, this application embodiment provides a connecting rod, which mainly includes a rod body 1. The side of the rod body 1 protrudes to form at least one set of flow guiding structures 2. The flow guiding structure 2 includes an oil collecting groove 21 and a plurality of oil guiding ribs 22. The plurality of oil guiding ribs 22 are spaced apart along the length direction of the oil collecting groove 21. The oil guiding ribs 22 are curved, and the output end of the oil guiding ribs 22 points to the groove opening of the oil collecting groove 21. The oil collecting groove 21 includes a sealed end and an open end that are relatively far apart. The liquid flow direction in the oil collecting groove 21 is configured to flow from the sealed end to the open end.

[0031] In this embodiment, the connecting rod is straight and arranged along the front-to-back direction. The rear end of the connecting rod is the first end, and the front end is the second end. At least one set of flow guiding structures 2 are formed on the left and / or right sides of the rod body 1. The connecting rod and the flow guiding structures 2 are integrally formed. Multiple oil guiding ribs 22 are arranged linearly. The oil guiding ribs 22 are used to guide oil to flow into the oil collection tank 21. In addition, the oil guiding ribs 22 are also used to extend the time for oil to flow into the oil collection tank 21 after the oil on the surface of the connecting rod has traveled a certain distance. The multiple oil guiding ribs 22 are all higher than the oil collection tank 21, which is straight and has its opening facing upward. The rod body 1 moves between a first position and a second position. In the first position, the open end of the oil collection tank 21 is higher than the closed end. In the second position, the open end of the oil collection tank 21 is lower than the closed end. The specific structure of the connecting rod is not specifically limited in this application.

[0032] In the first position of the connecting rod, the open end of the oil collection groove 21 is higher than the sealed end, and the oil flows along the oil guide rib 22 to the oil collection groove 21. The oil collection groove 21 receives the oil and the oil in the oil collection groove 21 flows to the sealed end for storage. In the second position, the open end of the oil collection groove 21 is lower than the sealed end, and the oil flows along the oil guide rib 22 to the oil collection groove 21. The oil in the oil collection groove 21 flows to the open end, and the oil flows out from the open end of the oil collection groove 21 to avoid the problem of oil accumulating and dripping on the connecting rod.

[0033] like Figure 1-2 As shown, in one optional implementation, the oil guide rib 22 includes a first guide section 221 and a second guide section 222 that are straight. The first guide section 221 and the second guide section 222 are connected at an obtuse angle. The second guide section 222 is closer to the oil collection groove 21 than the first guide section 221. The end of the second guide section 222 that is closer to the oil collection groove 21 serves as the output end of the oil guide rib 22.

[0034] Based on the aforementioned embodiments, in this embodiment, the first guide section 221 and the second guide section 222 are integrally formed. The first guide section 221 is higher than the second guide section 222, and the lower end of the second guide section 222 serves as the output end of the oil guide rib 22. The first guide section 221 and the second guide section 222 are connected at an obtuse angle to form a guiding structure, so as to ensure that the oil sludge can flow along the oil guide rib 22 and flow towards the oil collection groove 21, regardless of whether the rod body 1 is in the first position or the second position.

[0035] In some embodiments, the oil guide rib 22 is arc-shaped.

[0036] like Figure 1-2 As shown, in one optional implementation, the second guide section 222 is close to the first end of the rod 1, and the first guide section 221 is close to the second end of the rod 1; the oil collection groove 21 is straight, with the open end of the oil collection groove 21 close to the first end of the rod 1 and the closed end of the oil collection groove 21 close to the second end of the rod 1.

[0037] Based on the aforementioned embodiments, in this embodiment, the second guide section 222 is positioned further back than the first guide section 221, and conversely, the first guide section 221 is positioned further forward than the second guide section 222; the open end of the oil collecting trough 21 is positioned further back than the closed end of the oil collecting trough 21, and conversely, the closed end of the oil collecting trough 21 is positioned further forward than the open end of the oil collecting trough 21. By adopting the above scheme, it is ensured that in the first position, the oil collecting trough 21 stores oil, and in the second position, the oil can flow out of the oil collecting trough 21.

[0038] In some embodiments, in the first position, the first end of the rod 1 is higher than the second end; in the second position, the first end and the second end of the rod 1 are at the same height.

[0039] In some embodiments, in the first position, the first end of the rod 1 is higher than the second end; in the second position, the first end of the rod 1 is lower than the second end.

[0040] like Figure 1-2 As shown, in one optional implementation, the first guide section 221 is close to the top of the rod 1, and the second guide section 222 is close to the bottom of the rod 1; the sealing end of the oil collection groove 21 is close to the top of the rod 1, and the sealing end of the oil collection groove 21 is close to the bottom of the rod 1.

[0041] With the above scheme, the second guide section 222 is lower than the first guide section 221, and the oil collection tank 21 is set at an inclination, which makes it easy to adjust the inclination angle of the oil collection tank 21, the first guide section 221 and the second guide section 222 in the vertical direction, so as to adjust the flow direction of oil sludge and realize the collection or discharge of oil sludge.

[0042] As an optional implementation, the height of the oil guide rib 22 protruding from the rod body 1 is less than the width of the oil collection groove 21.

[0043] Based on the aforementioned embodiments, in this embodiment, the distance by which the oil guide rib 22 protrudes from the rod body 1 is less than the distance by which the oil collection groove 21 protrudes from the rod body 1; furthermore, the width of the groove opening of the oil collection groove 21 is greater than the width of the oil guide rib 22, ensuring that the oil spillage on the oil guide rib 22 can fall into the oil collection groove 21, and preventing oil from dripping from the connecting rod.

[0044] like Figure 2 As shown, in one optional implementation, the oil guide rib 22 forms a guide plane on the side opposite to the oil collection groove 21. The guide plane is inclined from top to bottom towards the direction of the oil collection groove 21, and the inclination direction of the guide plane forms an acute angle with the extension direction of the oil collection groove 21.

[0045] Based on the aforementioned embodiments, in this embodiment, the top surface of the oil guide rib 22 is an inclined flow guiding plane, which is inclined downwards towards the rod body 1, and the side of the rod body 1 is a vertical plane. The inclined direction of the flow guiding plane forms an acute angle with the extension direction of the oil collection groove 21 to prevent oil from overflowing from the oil guide rib 22, while facilitating the concentrated flow of oil.

[0046] As an optional implementation, multiple sets of flow guiding structures 2 are formed on either side of the rod 1, arranged vertically.

[0047] By adopting the above solution, more oil stains on the connecting rod can be collected, preventing oil stains from dripping.

[0048] As an optional implementation, the upper flow guide structure 2 in two adjacent sets of flow guide structures 2 is the first structure, and the lower flow guide structure 2 in two adjacent sets of flow guide structures 2 is the second structure; the opening end of the oil collection groove 21 in the first structure is closer to the first end of the rod 1 than the opening end of the oil collection groove 21 in the second structure.

[0049] Based on the aforementioned embodiments, in this embodiment, the oil collecting troughs 21 are inclined downwards sequentially, and the sealed ends of the oil collecting troughs 21 of all the guide structures 2 are located on the same vertical line. The oil collecting troughs 21 in the first structure are longer, meaning the oil collecting trough 21 with the highest height is the longest, and the oil collecting trough 21 with the lowest height is the shortest. Different oil collecting troughs 21 can have different inclination angles, which can make reasonable use of space while ensuring that the oil in all oil collecting troughs 21 can flow out.

[0050] Based on the same inventive concept, embodiments of this application provide a driving assembly, which mainly includes a motor, a driving rod, and a connecting rod. The driving rod is driven and connected to the motor; the connecting rod is connected to the driving rod.

[0051] Based on the aforementioned embodiments, in this embodiment, the connecting rod is also connected to the smoke-collecting plate 4. The motor drives the drive rod and the connecting rod to adjust the state of the smoke-collecting plate 4. When the connecting rod is in the first position, the smoke-collecting plate 4 is in the open state. At this time, the connecting rod is in the area with dense oil fumes, and the oil can be collected. When the connecting rod is in the second position, the smoke-collecting plate 4 is in the closed state, and the oil is discharged.

[0052] In the first position of the connecting rod, the open end of the oil collection groove 21 is higher than the sealed end, and the oil flows along the oil guide rib 22 to the oil collection groove 21. The oil collection groove 21 receives the oil and the oil in the oil collection groove 21 flows to the sealed end for storage. In the second position, the open end of the oil collection groove 21 is lower than the sealed end, and the oil flows along the oil guide rib 22 to the oil collection groove 21. The oil in the oil collection groove 21 flows to the open end, and the oil flows out from the open end of the oil collection groove 21 to avoid the accumulation of oil fumes on the connecting rod and the problem of oil dripping.

[0053] like Figure 1-4 As shown, based on the same inventive concept, this application provides a range hood, which mainly includes a smoke collection hood 3, a smoke gathering plate 4, an oil cup 5, and the drive assembly from the aforementioned embodiments. The smoke collection hood 3 has a smoke collection chamber inside, with an oil leakage hole at the bottom communicating with the outside. The smoke collection hood 3 has an air inlet communicating with the smoke collection chamber. The drive assembly is installed in the smoke collection chamber. The smoke gathering plate 4 is located outside the air inlet of the smoke collection hood 3. The drive assembly is installed on the smoke collection hood 3, and one end of the connecting rod near the sealing end is connected to the back of the smoke gathering plate 4 to drive the smoke gathering plate 4 to open and close the air inlet, with the open end located inside the smoke collection chamber. The oil cup 5 is installed at the bottom of the smoke collection hood 3.

[0054] When the smoke-collecting plate 4 is open, the connecting rod is in the area with the densest oil fumes, and is in the first position. The open end of the oil collection trough 21 is higher than the sealed end. Oil sludge flows along the oil guide rib 22 to the oil collection trough 21, which receives the oil sludge. The oil sludge in the oil collection trough 21 flows to the sealed end for storage. When the smoke-collecting plate 4 is closed, the connecting rod is in the second position, and the open end of the oil collection trough 21 is lower than the sealed end. Under the action of gravity, oil sludge flows along the oil guide rib 22 to the oil collection trough 21. The oil sludge in the oil collection trough 21 flows to the open end, and flows out from the open end of the oil collection trough 21, dripping onto the bottom of the smoke collection chamber of the smoke collection hood 3, and then flows into the oil cup 5 through the oil leakage hole.

[0055] By utilizing the different tilt angles of the connecting rod when the smoke collecting plate 4 is open and closed, the time the smoke collecting plate 4 is open is much shorter than the time it is closed, allowing sufficient time for the oil in the oil collection tank 21 to drain, thus preventing the accumulation of oil fumes on the connecting rod and causing oil dripping.

[0056] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0058] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0059] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0060] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A connecting rod, characterized in that, include: The rod body (1) has at least one set of flow guiding structures (2) protruding from its side. The flow guiding structure (2) includes an oil collection groove (21) and a plurality of oil guiding ribs (22). The plurality of oil guiding ribs (22) are spaced apart along the length direction of the oil collection groove (21). The oil guiding ribs (22) are curved and the output end of the oil guiding ribs (22) points to the opening of the oil collection groove (21). The oil collection groove (21) includes a sealed end and an open end that are relatively far apart. The liquid flow direction in the oil collection groove (21) is configured to flow from the sealed end to the open end.

2. The connecting rod according to claim 1, characterized in that, The oil guide rib (22) includes a first guide section (221) and a second guide section (222) in a straight line shape. The first guide section (221) and the second guide section (222) are connected at an obtuse angle. The second guide section (222) is closer to the oil collection groove (21) than the first guide section (221). The end of the second guide section (222) closer to the oil collection groove (21) serves as the output end of the oil guide rib (22).

3. The connecting rod according to claim 2, characterized in that, The second guide section (222) is close to the first end of the rod (1), and the first guide section (221) is close to the second end of the rod (1); The oil collection groove (21) is straight, with the open end of the oil collection groove (21) close to the first end of the rod (1) and the closed end of the oil collection groove (21) close to the second end of the rod (1).

4. The connecting rod according to claim 3, characterized in that, The first guide section (221) is close to the top of the rod (1), and the second guide section (222) is close to the bottom of the rod (1); The sealing end of the oil collection groove (21) is close to the top of the rod (1), and the sealing end of the oil collection groove (21) is close to the bottom of the rod (1).

5. The connecting rod according to claim 1, characterized in that, The height of the oil guide rib (22) protruding from the rod (1) is less than the width of the oil collection groove (21).

6. The connecting rod according to claim 1, characterized in that, The oil guide rib (22) forms a flow guide plane on the side opposite to the oil collection groove (21). The flow guide plane is inclined from top to bottom towards the oil collection groove (21). The inclination direction of the flow guide plane forms an acute angle with the extension direction of the oil collection groove (21).

7. The connecting rod according to any one of claims 1-6, characterized in that, Multiple sets of flow guiding structures (2) are formed on either side of the rod (1) and arranged vertically.

8. The connecting rod according to claim 7, characterized in that, In two adjacent groups of flow guiding structures (2), the upper flow guiding structure (2) is the first structure, and the lower flow guiding structure (2) in two adjacent groups of flow guiding structures (2) is the second structure. In the first structure, the opening end of the oil collection groove (21) is closer to the first end of the rod (1) than the opening end of the oil collection groove (21) in the second structure.

9. A driving component, characterized in that, include: motor, The drive rod is connected to the motor drive. The connecting rod as described in any one of claims 1-8 is connected to the drive rod.

10. A range hood characterized by include: The smoke hood (3) has a smoke collection chamber inside. The bottom of the smoke collection chamber is provided with an oil leakage hole that communicates with the outside. The smoke hood (3) is provided with an air inlet that communicates with the smoke collection chamber. The drive assembly as described in claim 9 is installed in the smoke collection chamber; A smoke collection plate (4) is disposed on the outside of the air inlet of the smoke collection hood (3); The drive assembly as described in claim 9 is installed on the smoke hood (3), and one end of the connecting rod near the sealing end is connected to the back of the smoke gathering plate (4) to drive the smoke gathering plate (4) to open and close the air inlet, and the opening end is located in the smoke collection chamber; An oil cup (5) is installed at the bottom of the smoke collection hood (3).

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