Self-cleaning range hood

Abstract

The utility model discloses a self-cleaning range hood, relates to the field of range hoods, and aims to solve the problem that a filter screen of a range hood is easy to adhere to oil smoke and is difficult to clean at present. The air purifier comprises a machine body, a filter screen is detachably installed on the bottom wall of the machine body and is in a circular truncated cone shape, a rotation assembly is rotatably installed on the bottom wall of the machine body, and the rotation assembly is in sliding connection with a cleaning assembly used for cleaning the filter screen. The autorotation assembly comprises an annular plate rotationally installed on the bottom wall of the outer side of the machine body, the cleaning assembly comprises a sliding plate penetrating through the annular plate, the sliding plate is rotationally connected with a scraper through a rotating shaft, the rotating shaft is sleeved with a torque spring, and the two ends of the torque spring are connected with the sliding plate and the scraper respectively. And the scraping plate is driven to abut against the filter screen in a sliding manner under the torsion of the torque spring. According to the utility model, through the cleaning assembly, the problems that the filter screen is easy to adhere to oil smoke and is not easy to clean are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a self-cleaning range hood. Background Art

[0002] There are many types of existing range hoods, including Chinese-style range hoods and European-style range hoods, which are mainly divided into old-fashioned surface-suction range hoods and standard deep-suction range hoods; the surface-suction type is a traditional exhaust fan that directly discharges oil smoke to the outside. The main problems of deep-suction range hoods are: large space occupation, loud noise, easy to hit the head, oil smoke droplets cannot be cleaned, short life, inconvenient cleaning, and environmental pollution. European-style range hoods use multi-layer mesh filtration and increase the motor power to achieve the best effect. The total power is above 200W, the appearance is beautiful, the filter is mostly flat mesh, the installation design is suspended, the price is relatively expensive, and it is suitable for high-end user groups.

[0003] The filter of the existing old-fashioned range hood is in the shape of a truncated cone. During use, a large amount of oil fume mixture is easily adhered to the outer wall of the truncated cone filter. In this case, physical disassembly and cleaning are generally used to achieve the purpose of cleaning. However, this cleaning method is time-consuming and labor-intensive, not suitable for frequent disassembly and cleaning, and the oil stains accumulated over a long period of time are extremely difficult to remove. Summary of the invention

[0004] The utility model aims to provide a self-cleaning range hood to solve the problem that the filter screen is easy to adhere to oil smoke and is difficult to clean.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-cleaning range hood, comprising:

[0007] A machine body, wherein a filter screen is detachably mounted on the bottom wall of the machine body, the filter screen is in a truncated cone shape, a self-rotating assembly is rotatably mounted on the bottom wall of the machine body, and a cleaning assembly for cleaning the filter screen is slidably connected to the self-rotating assembly;

[0008] The self-rotating component includes an annular plate rotatably mounted on the outer bottom wall of the machine body, and the cleaning component includes a slide plate penetrating the annular plate, the slide plate is rotatably connected to a scraper via a rotating shaft, a torque spring is sleeved on the rotating shaft, and the two ends of the torque spring are respectively connected to the slide plate and the scraper, and when the annular plate rotates, the scraper is driven to slide and abut against the filter screen under the constraint of the torque spring.

[0009] As a further description of the above technical solution:

[0010] The self-rotating assembly also includes a second gear rotatably mounted on the inner bottom wall of the machine body, a through hole is provided on the second gear; the second gear is meshed with the first gear, and the second gear is connected to the annular plate through a connecting ring.

[0011] As a further description of the above technical solution:

[0012] A motor is installed in the body, an output shaft is installed at the output end of the motor, and the central axis of the output shaft is connected to the first gear.

[0013] As a further description of the above technical solution:

[0014] The scraper is fixedly connected with a spring sleeve, the torque spring is installed in the spring sleeve, the spring sleeve is provided with a slot for matching the torque spring connecting slide plate, the connecting ring passes through the bottom wall of the body, and the central axis of the second gear coincides with the central axis of the filter.

[0015] As a further description of the above technical solution:

[0016] A heightening frame is installed on the inner bottom wall of the machine body, and a bellows is fixedly connected to the heightening frame. A smoke exhaust port is opened on the top of the machine body, and the bellows is connected to the smoke exhaust port.

[0017] As a further description of the above technical solution:

[0018] A control unit is arranged on the outer side wall of the machine body, the bellows is fixedly installed in the machine body by bolts, a smoking port is opened on the bottom wall of the machine body, and the bellows is connected to the smoking port.

[0019] As a further description of the above technical solution:

[0020] The bottom wall of the slide plate is provided with a plurality of slots, the bottom of the annular plate is screwed with a second threaded rod through a thread, the second threaded rod passes through the bottom of the annular plate and is snapped into the slots, and the second threaded rod is fixedly connected with a knob.

[0021] As a further description of the above technical solution:

[0022] A threaded sleeve is fixedly connected to the bottom of the filter screen, the threaded sleeve is connected to a first threaded rod through threaded engagement, a connecting rod is fixedly connected to the bottom of the first threaded rod, and the connecting rod is fixedly connected to an oil collecting box.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0024] 1. In the utility model, by starting the motor, the output shaft rotates, the first gear drives the second gear to rotate, the connecting ring drives the annular plate to rotate, the scraper slides and abuts against the side wall of the filter under the torsion of the torque spring, and scrapes the oil stains on the filter, so as to achieve the purpose of cleaning the side wall of the filter. The filter can be cleaned without disassembling the filter, the operation is simple and convenient, and the problem that the filter is easy to adhere to oil smoke and is difficult to clean is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A front structural schematic diagram according to an embodiment of the utility model is shown;

[0026] Figure 2 A schematic diagram of the side structure provided according to an embodiment of the utility model is shown;

[0027] Figure 3 The utility model provides a Figure 2 The structural diagram of the enlarged part A in the middle;

[0028] Figure 4 A schematic diagram of the structure of the filter screen and the oil collecting box after sectioning according to an embodiment of the utility model is shown;

[0029] Figure 5 A schematic diagram of the internal structure of a machine body provided according to an embodiment of the utility model is shown;

[0030] Figure 6 A schematic diagram of the structure of a self-rotating component and a cleaning component provided according to an embodiment of the utility model is shown;

[0031] Figure 7 It shows a schematic structural diagram of a cross-section of a self-rotating assembly installed on a machine body according to an embodiment of the utility model;

[0032] Figure 8 A schematic diagram of the structure of a cross-section of a rotation assembly provided according to an embodiment of the utility model is shown;

[0033] Fig. 9 The embodiment provided according to the utility model is shown Figure 8 Schematic diagram of the structure after the enlargement of part B.

[0034] Legend:

[0035] 10. Machine body; 11. Smoke exhaust port; 12. Control unit; 13. Filter; 131. Threaded sleeve; 14. Oil collecting box; 141. Connecting rod; 142. First threaded rod; 15. Bellows; 16. Heightening frame; 17. Smoke outlet; 20. Rotation assembly; 21. First gear; 22. Second gear; 23. Connecting ring; 24. Ring plate; 25. Output shaft; 26. Motor; 30. Cleaning assembly; 31. Slide plate; 311. Slot; 32. Rotating shaft; 33. Torque spring; 34. Scraper; 35. Spring sleeve; 36. Second threaded rod; 37. Knob. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] See also Figure 1-9 The utility model provides a technical solution: a self-cleaning range hood, comprising a body 10, a filter screen 13 is detachably mounted on the bottom wall of the body 10 for filtering the oil smoke, and the filter screen 13 is truncated in shape to increase the filtering area of ​​the filter screen 13; a self-rotating assembly 20 is rotatably mounted on the bottom of the body 10, and the self-rotating assembly 20 includes an annular plate 24 rotatably mounted on the outer bottom wall of the body 10, and a second gear 22 rotatably mounted on the inner bottom wall of the body 10, and a through hole is opened on the second gear 22; the second gear 22 is meshed with a first gear 21, and the second gear 22 is connected to the annular plate 24 through a connecting ring 23; a motor 26 is installed in the body 10, and an output shaft 25 is installed at the output end of the motor 26, and the central axis of the output shaft 25 is connected to the first gear 21, and the motor 26 is started, and the output shaft 25 rotates, and the first gear 21 drives the second gear 22 to rotate, and drives the annular plate 24 to rotate through the connecting ring 23.

[0038] The self-rotating component 20 is slidably connected to a cleaning component 30 for cleaning the filter 13. The cleaning component 30 includes a slide plate 31 that penetrates the annular plate 24. The slide plate 31 is rotatably connected to a scraper 34 via a rotating shaft 32. A torque spring 33 is sleeved on the rotating shaft 32. Both ends of the torque spring 33 are respectively connected to the slide plate 31 and the scraper 34. When the annular plate 24 rotates, the scraper 34 is driven to slide and abut against the filter 13 under the torsion of the torque spring 33, and the side wall of the filter 13 is cleaned.

[0039] Traditionally, the filter of the existing old-fashioned range hood is truncated cone-shaped. During use, a large amount of oil fume mixture is easily adhered to the outer wall of the truncated cone filter. In this case, physical disassembly is generally used to achieve the purpose of cleaning. However, this cleaning method is time-consuming and labor-intensive, not suitable for frequent disassembly and cleaning, and the oil stains accumulated over a long period of time are extremely difficult to remove. Therefore, a cleaning component 30 is designed to solve this problem.

[0040] When the user needs to clean the filter 13, the motor 26 is started, the output shaft 25 rotates, the first gear 21 drives the second gear 22 to rotate, and drives the annular plate 24 to rotate through the connecting ring 23. The scraper 34 slides and abuts against the side wall of the filter 13 under the torsion of the torque spring 33, and the oil stains on the filter 13 are scraped off, thereby achieving the purpose of cleaning the side wall of the filter 13. The filter 13 can be cleaned without disassembling the filter 13. The operation is simple and convenient, and the problem that the filter 13 is easy to adhere to oil smoke and is difficult to clean is solved.

[0041] Specifically, Figure 1 As shown, a raising frame 16 is installed on the inner bottom wall of the body 10, and the raising frame 16 is fixedly connected to the bellows 15. A smoking port 17 is opened on the bottom wall of the body 10, and the bellows 15 is connected to the smoking port 17. A smoke exhaust port 11 is opened on the top of the body 10, and the bellows 15 is connected to the smoke exhaust port 11. A control unit 12 is arranged on the outer side wall of the body 10, and the bellows 15 is fixedly installed in the body 10 by bolts. The user starts the range hood through the control unit 12, and the oil smoke is separated by the filter 13 under the suction force of the bellows 15, enters the bellows 15 through the smoking port 17, and is finally discharged to the outside of the body 10 through the smoke exhaust port 11.

[0042] Specifically, Figure 2-9 As shown, the slide plate 31 is slidably installed on the bottom of the annular plate 24, and a plurality of slots 311 are provided on the bottom wall of the slide plate 31. The bottom of the annular plate 24 is screwed with a second threaded rod 36, which passes through the bottom of the annular plate 24 and is snapped into the slot 311. The second threaded rod 36 is fixedly connected with a knob 37. When the user determines the sliding position of the slide plate 31, the second threaded rod 36 can be snapped into the slot 311 by turning the knob 37, thereby fixing the sliding position of the slide plate 31. Therefore, the slide plate 31 can adapt to filters 13 of different sizes by sliding, and the operation is simple and convenient.

[0043] Specifically, Figure 4As shown, a threaded sleeve 131 is fixedly connected to the bottom of the filter 13, and the threaded sleeve 131 is connected to a first threaded rod 142 by threaded engagement. The bottom of the first threaded rod 142 is fixedly connected to a connecting rod 141, and the connecting rod 141 is fixedly connected to the oil collecting box 14. To facilitate the disassembly of the oil collecting box 14, the first threaded rod 142, the connecting rod 141 and the oil collecting box 14 are all located on the same central axis. The user only needs to rotate the oil collecting box 14 to install or disassemble the oil collecting box 14. The operation is simple and convenient. To prevent oil from adhering to the connection between the filter 13 and the oil collecting box 14, the first threaded rod 142 is increased by the connecting rod 141. When oil accumulates in the oil collecting box 14, the oil accumulates at the bottom of the oil collecting box 14 and on the side wall of the connecting rod 141. The cross-sectional area of ​​the connecting rod 141 is larger than the cross-sectional area of ​​the first threaded rod 142. The bottom wall of the threaded sleeve 131 fits tightly with the top wall of the connecting rod 141 to further prevent oil smoke from adhering.

[0044] Specifically, Figure 8-9 As shown, in order to prevent oil smoke from adhering to the torque spring 33, the scraper 34 is fixedly connected to the spring sleeve 35, the torque spring 33 is installed in the spring sleeve 35, and the spring sleeve 35 is provided with a groove for matching the torque spring 33 to connect the slide plate 31; the connecting ring 23 passes through the bottom wall of the body 10, and the central axis of the second gear 22 coincides with the central axis of the filter 13, so the scraper 34 is always in contact with the side wall of the filter 13 during use and will not be offset.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-cleaning range hood, comprising a machine body (10), wherein a filter screen (13) is detachably mounted on the bottom wall of the machine body (10), characterized in that: The filter screen (13) is in a truncated cone shape, a self-rotating assembly (20) is rotatably mounted on the bottom wall of the machine body (10), and a cleaning assembly (30) for cleaning the filter screen (13) is slidably connected to the self-rotating assembly (20); The self-rotating assembly (20) comprises an annular plate (24) rotatably mounted on the outer bottom wall of the machine body (10); the cleaning assembly (30) comprises a slide plate (31) penetrating the annular plate (24); the slide plate (31) is rotatably connected to a scraper plate (34) via a rotating shaft (32); a torque spring (33) is sleeved on the rotating shaft (32); two ends of the torque spring (33) are respectively connected to the slide plate (31) and the scraper plate (34); when the annular plate (24) rotates, the scraper plate (34) is driven to slide and abut against the filter screen (13) under the torsion of the torque spring (33).

2. A self-cleaning range hood according to claim 1, characterized in that: The self-rotating assembly (20) further comprises a second gear (22) rotatably mounted on the inner bottom wall of the machine body (10), wherein the second gear (22) is provided with a through hole; the second gear (22) is meshed with the first gear (21), and the second gear (22) is connected to the annular plate (24) via a connecting ring (23).

3. A self-cleaning range hood according to claim 2, characterized in that: A motor (26) is installed in the machine body (10), an output shaft (25) is installed at the output end of the motor (26), and the central axis of the output shaft (25) is connected to the first gear (21).

4. The self-cleaning range hood according to claim 3, characterized in that: The scraper (34) is fixedly connected to a spring sleeve (35), the torque spring (33) is installed in the spring sleeve (35), and a notch is provided on the spring sleeve (35) for matching the torque spring (33) to connect the slide plate (31). The connecting ring (23) passes through the bottom wall of the machine body (10), and the central axis of the second gear (22) coincides with the central axis of the filter screen (13).

5. The self-cleaning range hood according to claim 1, characterized in that: A heightening frame (16) is installed on the inner bottom wall of the machine body (10), and the heightening frame (16) is fixedly connected to a bellows (15). A smoke exhaust port (11) is opened on the top of the machine body (10), and the bellows (15) is connected to the smoke exhaust port (11).

6. A self-cleaning range hood according to claim 5, characterized in that: A control unit (12) is arranged on the outer side wall of the machine body (10); the bellows (15) is fixedly installed in the machine body (10) by means of bolts; a smoking port (17) is provided on the bottom wall of the machine body (10); and the bellows (15) is connected to the smoking port (17).

7. The self-cleaning range hood according to claim 1, characterized in that: The bottom wall of the slide plate (31) is provided with a plurality of slots (311); the bottom of the annular plate (24) is screwed with a second threaded rod (36) via a thread; the second threaded rod (36) passes through the bottom of the annular plate (24) and is snapped into the slots (311); the second threaded rod (36) is fixedly connected with a knob (37).

8. The self-cleaning range hood according to claim 1, characterized in that: The bottom of the filter screen (13) is fixedly connected to a threaded sleeve (131), the threaded sleeve (131) is screwed together with a first threaded rod (142), the bottom of the first threaded rod (142) is fixedly connected to a connecting rod (141), and the connecting rod (141) is fixedly connected to an oil collecting box (14).

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