A desktop range hood with oil collecting and guiding structure

Abstract

A kind of desktop fume exhaustor with oil collection guide structure, the front end of fume exhaustor shell is inclined and arranged downward;The front end of fume exhaustor shell is provided with inwardly retracting retracting ring wall;Retracting ring wall is provided with annular mounting groove for mounting filter screen assembly;Retracting ring wall and the front end of fume exhaustor shell form oil collection groove;Lower oil outlet is opened near the bottom end of oil collection groove;The top of base body is provided with inclined oil guide cavity, which is below the lower oil outlet;Inclined oil guide cavity is communicated with one side of the upper end of oil guide column;Inclined oil guide cavity and oil guide column are integrally formed structure.The utility model, oil collection groove and inclined oil guide cavity are both large-space buffer oil guide space, and oil stain is not easy to produce blockage.By designing inclined oil guide cavity and oil guide column as integrally formed structure, the gap of traditional multi-section oil guide pipe column joint is completely eliminated, the whole oil circuit is ensured to be airtight, and the cleanliness and reliability of product are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of desktop range hood technology, and in particular to a desktop range hood with an oil collection and guiding structure. Background Technology

[0002] A desktop range hood is a new type of portable fume extraction device, primarily used to absorb and exhaust cooking fumes. Compared to traditional range hoods that are fixedly installed above the kitchen stove, desktop range hoods offer greater flexibility and adaptability, and can be widely used in various space-constrained scenarios such as living room gatherings, small apartments, or temporary kitchens. Taking the published patent CN113606632A as an example, this portable desktop range hood typically consists of two parts: the main body of the range hood and the base. The main body houses a motor and filter structure for drawing in and initially treating cooking fumes; the base contains an oil cup for collecting the grease that has been absorbed by the range hood.

[0003] However, this type of product has design flaws. Specifically, the main body of the range hood includes an outer shell, with an oil drain groove and a multi-section connecting oil guide column structure at the lowest point of the inner circumference of the outer shell to guide the oil from the drain groove to the oil cup. The joints of the multi-section oil guide column pose a risk of oil leakage; furthermore, if the oil guide column becomes partially blocked, grease can easily accumulate at the top of the oil guide column and overflow from the outer shell. Therefore, further improvements are needed. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a desktop range hood with an oil collection and guiding structure.

[0005] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a desktop range hood with an oil collection and diversion structure, including: a range hood body, a base body and an oil cup; The main body of the range hood includes a cylindrical range hood shell, on which a filter assembly, an impeller, a motor, and a protective cover are sequentially installed along the airflow direction; the base body is provided with an oil drain chamber and an oil guide column, and the oil drain chamber is used to install the oil cup; The front end of the range hood housing is inclined downwards; the front end of the range hood housing is provided with an inwardly contracting annular wall; the annular wall is provided with an annular mounting groove for installing the filter assembly; the annular wall and the front end of the range hood housing together form an oil collection groove; an oil outlet is provided near the bottom end of the oil collection groove. The top of the base body is provided with an inclined oil guiding cavity, which is located below the lower oil port; the inclined oil guiding cavity is connected to one side of the upper end of the oil guiding column; the inclined oil guiding cavity and the oil guiding column are integrally formed.

[0006] Optionally, the inclined oil guiding cavity is arranged in a triangular shape; the lower side wall of the inclined oil guiding cavity is inclined towards the lower end of the oil guiding column.

[0007] Optionally, the angle between the lower side wall of the inclined oil guide cavity and the vertical direction is in the range of 55° to 75°.

[0008] Optionally, the angle between the lower side wall of the inclined oil guide cavity and the vertical direction is in the range of 60° to 70°.

[0009] Optionally, the lower oil port extends into the inclined oil guide cavity.

[0010] Optionally, the base body includes a separate base body and a bottom seat; the bottom seat is installed below the bottom body; the range hood shell is installed above the base body; the inclined oil guiding cavity and oil guiding column are integrally formed on the base body; and the oil discharge chamber is formed by the bottom seat.

[0011] Optionally, an oil inlet is provided above the oil discharge chamber; the bottom end of the oil guide column is inserted into the oil inlet, and the oil inlet faces the oil cup.

[0012] Optionally, the bottom of the filter assembly is provided with an oil drain groove; the oil drain groove is located above the oil outlet.

[0013] Optionally, the annular mounting groove is provided with an oil passage hole through which the oil drain groove passes; the oil passage hole is located above the oil outlet.

[0014] Optionally, the base body is equipped with a storage battery.

[0015] The beneficial effects of this invention are as follows: The converging ring wall at the front end of the range hood casing, together with the body, forms an oil collection groove, which can efficiently collect oil droplets and quickly guide them into the inclined oil guiding chamber and oil cup below through the oil outlet. The integrated oil circuit structure has no disassembly interface, greatly reducing the difficulty of cleaning. At the same time, the oil cup is located in the oil discharge compartment of the base, making it convenient for users to remove and clean. Both the oil collection groove and the inclined oil guiding chamber are large-space buffer oil guiding spaces, making it difficult for oil to cause blockage. By designing the inclined oil guiding chamber and the oil guiding column as an integrated molding structure, the gaps at the joints of traditional multi-segment oil guiding columns are completely eliminated, fundamentally solving the problem of grease leakage caused by poor sealing of joints, ensuring that the oil circuit is completely sealed, and significantly improving the cleanliness and reliability of the product.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural schematic diagram of the desktop range hood of this utility model; Figure 2 for Figure 1 A cross-sectional view of a desktop range hood; Figure 3 for Figure 1 Exploded view of a desktop range hood; Figure 4 for Figure 1 Another exploded view of the desktop range hood.

[0018] Explanation of key component symbols: 10. Range hood body; 11. Range hood shell; 111. Converging ring wall; 112. Annular mounting groove; 113. Oil collection groove; 114. Oil outlet; 115. Oil passage hole; 12. Filter screen assembly; 121. Oil drainage chute; 13. Impeller; 14. Motor; 15. Protective cover; 20. Base body; 21. Oil drain chamber; 22. Oil guide column; 23. Inclined oil guide cavity; 24. Base body; 25. Bottom seat; 26. Oil inlet; 30. Oil cup. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0022] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Example Reference Figures 1 to 4 The present invention proposes a desktop range hood with an oil collection and diversion structure, comprising: a range hood body 10, a base body 20, and an oil cup 30; The main body 10 of the range hood includes a cylindrical range hood shell 11, on which a filter assembly 12, an impeller 13, a motor 14 and a protective cover 15 are installed in sequence along the airflow direction; the base body 20 is provided with an oil drain chamber 21 and an oil guide column 22, and the oil drain chamber 21 is used to install an oil cup 30. The front end of the range hood housing 11 is inclined downwards; the front end of the range hood housing 11 is provided with an inwardly contracting annular wall 111; the annular wall 111 is provided with an annular mounting groove 112 for installing the filter assembly 12; the annular wall 111 and the front end of the range hood housing 11 form an oil collection groove 113; an oil outlet 114 is opened at the bottom end near the oil collection groove 113; An inclined oil guiding cavity 23 is provided on the top of the base body 20, and the inclined oil guiding cavity 23 is located below the lower oil port 114; the inclined oil guiding cavity 23 is connected to one side of the upper end of the oil guiding column 22; the inclined oil guiding cavity 23 and the oil guiding column 22 are integrally formed.

[0024] In this invention, the converging annular wall 111 at the front end of the range hood housing 11, together with the body, forms an oil collection groove 113, which can efficiently collect oil droplets and quickly guide them into the inclined oil guiding cavity 23 and oil cup 30 below through the lower oil port 114. The integrated oil circuit structure has no disassembly interface, greatly reducing the difficulty of cleaning. At the same time, the oil cup 30 is located in the oil discharge chamber 21 of the base, making it convenient for users to remove and clean. Both the oil collection groove 113 and the inclined oil guiding cavity 23 are large-space buffer oil guiding spaces, making it difficult for oil to cause blockage. By designing the inclined oil guiding cavity 23 and the oil guiding column 22 as an integral molding structure, the gaps at the joints of traditional multi-segment oil guiding columns are completely eliminated, fundamentally solving the problem of grease leakage caused by poor sealing of joints, ensuring that the oil circuit is completely sealed, and significantly improving the cleanliness and reliability of the product.

[0025] In this embodiment, the inclined oil guiding cavity 23 is arranged in a triangular shape; the lower side wall of the inclined oil guiding cavity 23 is inclined towards the lower end of the oil guiding column 22. The inclined oil guiding cavity 23 is arranged in a triangular shape and its lower side wall is inclined towards the lower end of the oil guiding column 22. The inclined structure enhances the oil guiding property, effectively reduces residue, further reduces the possibility of blockage, and improves the continuity and stability of oil flow.

[0026] In this embodiment, the angle between the lower sidewall of the inclined oil guide cavity 23 and the vertical direction is within the range of 55° to 75°. Limiting the angle between the lower sidewall of the inclined oil guide cavity 23 and the vertical direction to between 55° and 75° can ensure that the oil flows smoothly down under gravity while maintaining structural compactness, and avoid the problem of oil flow being too fast or too slow due to improper angle.

[0027] Preferably, the angle between the lower side wall of the inclined oil guiding cavity 23 and the vertical direction is within the range of 60° to 70°. Further optimizing the inclination angle to 60° to 70° better matches the physical properties of common cooking oils, and can maintain stable and efficient oil guiding performance under different temperature and viscosity conditions, thereby enhancing product adaptability and operational reliability.

[0028] In this embodiment, the lower oil port 114 extends downward and into the inclined oil guiding cavity 23. The downward extension of the lower oil port 114 into the inclined oil guiding cavity 23 can shorten the oil droplet falling distance, effectively prevent oil from splashing or deviating from the predetermined oil path, ensure that the oil is accurately guided into the inclined oil guiding cavity 23, and keep the machine body and surrounding area clean.

[0029] In this embodiment, the base body 20 includes a separate base body 24 and a bottom seat 25; the bottom seat 25 is installed below the base body; the range hood shell 11 is installed above the base body 24; the inclined oil guiding cavity 23 and the oil guiding column 22 are integrally formed on the base body 24, and the oil drain chamber 21 is formed by the bottom seat 25. The base body 20 adopts a separate design of the base body 24 and the bottom seat 25, so that the inclined oil guiding cavity 23 and the oil guiding column 22 are integrally manufactured on the base body 24, while the oil drain chamber 21 is independently formed by the bottom seat 25. This not only facilitates modular production and assembly, but also ensures the sealing of the oil drain chamber 21. The oil drain chamber 21 has no splicing gaps, and oil cannot escape from the oil drain chamber 21 to the area of ​​the base body 20.

[0030] In this embodiment, an oil inlet 26 is provided above the oil discharge chamber 21; the bottom end of the oil guide column 22 is inserted into the oil inlet 26, with the oil inlet 26 facing the oil cup 30. The presence of the oil inlet 26 above the oil discharge chamber 21, along with the bottom end of the oil guide column 22 inserted into the oil inlet 26 and facing the oil cup 30, precisely guides the oil into the oil cup 30, preventing leakage at the end and further ensuring the sealing and collection effect of the oil circuit.

[0031] In this embodiment, an oil drain chute 121 is provided at the bottom of the filter assembly 12; the oil drain chute 121 is located above the oil outlet 114. By adding an oil drain chute 121 at the bottom of the filter assembly 12 and positioning it above the oil outlet 114, oil droplets can be pre-collected and guided, preventing oil from accumulating around the filter structure.

[0032] In this embodiment, the annular mounting groove 112 has an oil passage hole 115 through which the oil draining chute 121 passes; the oil passage hole 115 is located above the lower oil port 114. The oil passage hole 115 in the annular mounting groove 112, allowing the oil draining chute 121 to pass through, and its location above the lower oil port 114, forms a continuous oil guiding path from the filter screen to the oil collection tank 113, further optimizing the pre-collection efficiency of oil sludge and preventing oil path interruption or stagnation.

[0033] In this embodiment, the base body 20 is equipped with a storage battery. This improves the product's mobility and applicability.

[0034] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A desktop range hood with an oil collection and diversion structure, characterized in that, include: The range hood body (10), the base body (20), and the oil cup (30); The main body (10) of the range hood includes a cylindrical range hood shell (11), on which a filter assembly (12), an impeller (13), a motor (14), and a protective cover (15) are sequentially installed along the airflow direction; the base body (20) is provided with an oil drain chamber (21) and an oil guide column (22), and the oil drain chamber (21) is used to install the oil cup (30); The front end of the range hood housing (11) is inclined downwards; the front end of the range hood housing (11) is provided with an inwardly contracting annular wall (111); the annular wall (111) is provided with an annular mounting groove (112) for installing the filter assembly (12); the annular wall (111) and the front end of the range hood housing (11) form an oil collection groove (113); an oil outlet (114) is provided near the bottom end of the oil collection groove (113); The base body (20) has an inclined oil guide cavity (23) on its top, which is located below the lower oil port (114). The inclined oil guide cavity (23) is connected to one side of the upper end of the oil guide column (22). The inclined oil guide cavity (23) and the oil guide column (22) are integrally formed.

2. The desktop range hood with an oil collection and guiding structure according to claim 1, characterized in that: The inclined oil guiding cavity (23) is arranged in a triangular shape; the lower side wall of the inclined oil guiding cavity (23) is inclined towards the lower end of the oil guiding column (22).

3. The desktop range hood with an oil collection and guiding structure according to claim 1, characterized in that: The angle between the lower side wall of the inclined oil guide cavity (23) and the vertical direction is in the range of 55° to 75°.

4. The desktop range hood with an oil collection and guiding structure according to claim 3, characterized in that: The angle between the lower side wall of the inclined oil guide cavity (23) and the vertical direction is in the range of 60° to 70°.

5. The desktop range hood with an oil collection and guiding structure according to claim 1, characterized in that: The lower oil port (114) extends into the inclined oil guide cavity (23).

6. The desktop range hood with an oil collection and guiding structure according to claim 1, characterized in that: The base body (20) includes a separate base body (24) and a bottom seat (25); the bottom seat (25) is installed below the bottom body; the smoke machine shell (11) is installed above the base body (24); the inclined oil guiding cavity (23) and the oil guiding column (22) are integrally formed on the base body (24), and the oil discharge chamber (21) is formed by the bottom seat (25).

7. The desktop range hood with an oil collection and guiding structure according to claim 1, characterized in that: An oil inlet (26) is provided above the oil discharge chamber (21); the bottom end of the oil guide column (22) is inserted into the oil inlet (26), and the oil inlet (26) faces the oil cup (30).

8. The desktop range hood with an oil collection and guiding structure according to claim 1, characterized in that: The bottom of the filter assembly (12) is provided with an oil drain groove (121); the oil drain groove (121) is located above the oil outlet (114).

9. The desktop range hood with an oil collection and guiding structure according to claim 8, characterized in that: The annular mounting groove (112) has an oil passage hole (115) through which the oil drain groove (121) passes; the oil passage hole (115) is located above the oil outlet (114).

10. The desktop range hood with an oil collection and guiding structure according to claim 1, characterized in that: The base body (20) is equipped with a storage battery.

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