An oil fume purifier that can be automatically cleaned

Abstract

The present invention discloses an oil fume extractor that can be automatically cleaned, including an outer frame of the oil fume extractor. A grease tray is installed at the bottom of the inner wall of the outer frame of the oil fume extractor through a slot. One side of the inner wall of the outer frame of the oil fume extractor is slidably connected with a first rack through a slot. This oil fume extractor utilizes a hydraulic push rod to horizontally push a second rack, which can regularly and continuously trigger the functions of a gas shielding plate, a cleaning cotton roller, and water pumping for cleaning. The opening of the gas shielding plate allows air to enter the front panel of the oil fume extractor, which is a normal usage function of an oil fume extractor. If the second rack is continuously pushed by the hydraulic push rod, the cleaning cotton roller can be triggered to move upward along the front panel of the outer frame of the oil fume extractor, and the second gear can also be triggered to rotate, thereby driving the reciprocating lead screw to rotate, pushing the push rod and the piston to reciprocate in the piston cylinder, and water can be injected into the interior of the cleaning cotton roller to achieve a better washing effect.

Description

Technical Field

[0001] The present invention relates to the field of automatic cleaning of range hoods, and in particular to a range hood that can be automatically cleaned. Background Art

[0002] Currently, the automatic cleaning of range hoods is mainly divided into internal cleaning and external cleaning. Since the range hood is long-term above the stove top which is the key area of oil fume, the most part that needs to be frequently cleaned is the front end face of the outer wall of the range hood. And in the current range hood cleaning equipment, additional redundant power structures, such as motors or electric push rods and other devices, are required to drive the brush to refresh the front end face. First of all, in terms of operation, multiple buttons are needed to achieve. For example, first open the panel for the flue gas to enter on the front end face of the range hood, and then start the cleaning equipment to brush the inside. It is rather troublesome for users. Secondly, the current brushing effect is very simple. It is also necessary for users to actively add water to the brush part to improve the brushing effect. And the brush cannot rotate, the function is simple and the operation is very cumbersome. Users still choose to brush manually. Therefore, the current equipment does not solve the actual usage requirements of users.

[0003] Therefore, we propose a range hood that can be automatically cleaned to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a range hood that can be automatically cleaned to solve the problems raised in the above background art. The technical solution of the present invention provides a solution significantly different from the prior art for the technical problem that the prior art solutions are too single.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An oil fume extractor that can be automatically cleaned, comprising an outer frame of the oil fume extractor. At the bottom of the inner wall of the outer frame of the oil fume extractor, an oil sump is installed through a slot. On one side of the inner wall of the outer frame of the oil fume extractor, a first rack is slidably connected through a slot. On one side of the first rack, a cleaning cotton roller is connected through a connecting rod. On the left and right sides of the cleaning cotton roller, first gears are installed. On one side of the outer wall of the first rack, a second gear is meshed and connected. On the other side of the first rack, a third gear is meshed and connected. A limiting ring is fixedly connected to the inner wall of the outer frame of the oil fume extractor. On one side of the outer wall of the third gear, a sliding rod is rotatably connected through a bearing. A hydraulic push rod is installed on the inner wall of the outer frame of the oil fume extractor. The telescopic end of the hydraulic push rod is connected to a second rack. On one side of the outer wall of the second rack, a sliding groove is opened. The sliding groove and the sliding rod form a sliding connection. On one side of the outer wall of the second rack, a fourth gear is meshed and connected. On one side of the fourth gear, a gas shielding plate is installed. A wind wheel is installed on the inner wall of the outer frame of the oil fume extractor. An oil outlet pipeline is installed on the outer wall of the wind wheel. At the top of the oil outlet pipeline, an air outlet fan is installed. The shaft end of the second gear is connected to a reciprocating lead screw through an opening. A connecting sleeve is connected to the outer wall of the reciprocating lead screw. On one side of the outer wall of the connecting sleeve, a push rod is fixedly connected. The push rod, on one side of the outer wall of the outer frame of the oil fume extractor, a piston cylinder is installed. The side of the piston cylinder is movably connected to the push rod through an opening. One end of the push rod is slidably connected to the inner wall of the piston cylinder through a connecting piston. An inlet liquid pipe and an outlet liquid pipe are respectively connected to the outer wall of the piston cylinder. A liquid storage tank is installed on the top of the outer frame of the oil fume extractor.

[0007] In a further embodiment, a third rack is fixedly connected to the front end face of the outer frame of the oil fume extractor. The third rack is located on both sides of the gas shielding plate. The third rack is meshed and connected with the first gear.

[0008] In a further embodiment, the outlet liquid pipe is connected to the shaft end of the cleaning cotton roller through a hose. One end of the inlet liquid pipe is connected to the liquid storage tank through a hose. Check valves are installed on both the outlet liquid pipe and the inlet liquid pipe.

[0009] In a further embodiment, the first rack and the side connecting rod are fixedly connected. The connecting rod and the first gear are rotatably connected through a bearing.

[0010] In a further embodiment, the shaft end of the wind wheel is connected to a driving motor.

[0011] In a further embodiment, a display is installed on the front end face of the outer frame of the oil fume extractor. A smoke outlet pipe is fixedly connected to the top of the outer frame of the oil fume extractor. The smoke outlet pipe is located directly above the wind wheel.

[0012] In a further embodiment, the air outlet fan is located directly above the center of the oil outlet pipeline. The pipelines on the left and right sides of the oil outlet pipeline are perpendicular downward.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This range hood uses a hydraulic push rod to horizontally push the second rack, which can regularly and continuously trigger the functions of the air baffle, the cleaning cotton roller, and the pumping and cleaning. The opening of the air baffle allows the front panel of the range hood to intake air, which is a normal usage function of a range hood. If the second rack is continuously pushed by the hydraulic push rod, it can further trigger the cleaning cotton roller to move upward along the front panel of the outer frame of the range hood, and can also further trigger the rotation of the second gear, thereby driving the reciprocating lead screw to rotate, pushing the push rod and the piston to reciprocate in the piston cylinder, and can perform a water injection operation on the inside of the cleaning cotton roller. In addition, the first gears on both the left and right sides of the cleaning cotton roller can also mesh with the third rack, enabling different surfaces of the cleaning cotton roller to contact the front end face of the range hood, achieving a better scrubbing effect. Compared with existing devices, on the basis of not changing the function that the front panel of the original range hood can be rotated and opened to allow flue gas to enter, this device can continuously trigger the corresponding cleaning structure, and can achieve it independently without adding other power sources. For users, they only need to extend the hydraulic push rod outward, which can be achieved by pressing a button, and the operation is very convenient. Description of the Drawings

[0015] Figure 1 It is a three-dimensional front view structure diagram of a range hood that can be automatically cleaned.

[0016] Figure 2 It is a side view structure diagram of the air baffle closed in a range hood that can be automatically cleaned.

[0017] Figure 3 It is a structure diagram of the air baffle opened in a range hood that can be automatically cleaned.

[0018] Figure 4 It is a structure diagram of the push rod reciprocating in a range hood that can be automatically cleaned.

[0019] Figure 5 It is a structure diagram of the impeller in a range hood that can be automatically cleaned.

[0020] Figure 6 It is a structure diagram of the second rack in a range hood that can be automatically cleaned.

[0021] In the figure: 1. Outer frame of the range hood; 2. Oil sump; 3. First rack; 4. Cleaning cotton roller; 5. First gear; 6. Second gear; 7. Third gear; 8. Limit ring; 9. Slide bar; 10. Hydraulic push rod; 1001. Second rack; 11. Slide groove; 12. Fourth gear; 13. Air baffle; 14. Wind wheel; 15. Oil outlet pipeline; 16. Air outlet of the fan; 17. Reciprocating lead screw; 18. Connecting sleeve; 19. Push rod; 20. Piston cylinder; 21. Liquid inlet pipe; 22. Liquid outlet pipe; 23. Smoke outlet pipe; 24. Liquid storage tank; 25. Third rack; 26. Display. Detailed implementation manners

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-6, in the present invention, an oil fume extractor capable of automatic cleaning includes an outer frame 1 of the oil fume extractor. At the bottom of the inner wall of the outer frame 1 of the oil fume extractor, an oil sump 2 is installed through a slot. On one side of the inner wall of the outer frame 1 of the oil fume extractor, a first rack 3 is slidably connected through a slot. On one side of the first rack 3, a cleaning cotton roller 4 is connected through a connecting rod. On the left and right sides of the cleaning cotton roller 4, first gears 5 are installed. On one side of the outer wall of the first rack 3, a second gear 6 is meshed and connected. On the other side of the first rack 3, a third gear 7 is meshed and connected. A limiting ring 8 is fixedly connected to the inner wall of the outer frame 1 of the oil fume extractor. On one side of the outer wall of the third gear 7, a sliding rod 9 is rotatably connected through a bearing. A hydraulic push rod 10 is installed on the inner wall of the outer frame 1 of the oil fume extractor. The telescopic end of the hydraulic push rod 10 is connected to a second rack 1001. On one side of the outer wall of the second rack 1001, a sliding slot 11 is provided. The sliding slot 11 and the sliding rod 9 form a sliding connection. On one side of the outer wall of the second rack 1001, a fourth gear 12 is meshed and connected. On one side of the fourth gear 12, a gas shielding plate 13 is installed. A wind wheel 14 is installed on the inner wall of the outer frame 1 of the oil fume extractor. An oil outlet pipeline 15 is installed on the outer wall of the wind wheel 14. At the top of the oil outlet pipeline 15, an oil outlet fan opening 16 is installed. The shaft end of the second gear 6 is connected to a reciprocating lead screw 17 through an opening. A connecting sleeve 18 is connected to the outer wall of the reciprocating lead screw 17. On one side of the outer wall of the connecting sleeve 18, a push rod 19 is fixedly connected. The push rod 19, on one side of the outer wall of the outer frame 1 of the oil fume extractor, a piston cylinder 20 is installed. The side of the piston cylinder 20 is movably connected to the push rod 19 through an opening. One end of the push rod 19 forms a sliding connection with the inner wall of the piston cylinder 20 through a connecting piston. A liquid inlet pipe 21 and a liquid outlet pipe 22 are respectively connected to the outer wall of the piston cylinder 20. A liquid storage tank 24 is installed on the top of the outer frame 1 of the oil fume extractor.

[0026] Embodiment 1

[0027] Please refer to Figures 1-6 , in the embodiment of the present invention, for an oil fume extractor capable of automatic cleaning, a third rack 25 is fixedly connected to the front end face of the outer frame 1 of the oil fume extractor. The third rack 25 is located on both sides of the gas shielding plate 13. The third rack 25 is meshed and connected with the first gear 5. When the first gear 5 slides in the inclined plane direction, the first gear 5 can produce a meshing effect with the third rack 25. In this way, when the first gear 5 passes through the third rack 25, the first gear 5 itself can rotate, so that different surfaces of the cleaning cotton roller 4 contact the outer frame 1 of the oil fume extractor and produce an inclined effect.

[0028] The liquid outlet pipe 22 is connected to the shaft end of the cleaning cotton roller 4 through a hose. One end of the liquid inlet pipe 21 is connected to the liquid storage tank 24 through a hose. Check valves are installed on both the liquid outlet pipe 22 and the liquid inlet pipe 21. Check valves are installed on both the liquid outlet pipe 22 and the liquid inlet pipe 21 at the same time. The liquid inlet pipe 21 can only let in liquid and cannot let out liquid, while the liquid outlet pipe 22 can only let out liquid and cannot let in liquid.

[0029] A display 26 is installed on the front end surface of the range hood outer frame 1, and a smoke outlet pipe 23 is fixedly connected to the top of the range hood outer frame 1. The smoke outlet pipe 23 is located directly above the wind wheel 14. The display 26 can facilitate users to perform specific operations on the device. After the smoke is sucked into the wind wheel 14, it is finally discharged outward through the position of the smoke outlet pipe 23.

[0030] Example 2

[0031] See also Figures 1-6 , which is different from Example 1, is that the first rack 3 is fixedly connected to the side connecting rod, and the connecting rod is rotatably connected to the first gear 5 through a bearing. When the first rack 3 slides along the inclined surface of the range hood outer frame 1, it can drive the cleaning cotton roller 4 and the first gear 5 to slide along the inclined surface, so that the cleaning cotton roller 4 cleans the outer wall of the range hood outer frame 1.

[0032] The shaft end of the wind wheel 14 is connected to a driving motor, and the driving motor can drive the wind wheel 14 to rotate to suck smoke from the room into the interior of the range hood outer frame 1 .

[0033] Example 3

[0034] See also Figures 1-6 , which is different from Example 1, is that: the fan outlet 16 is located just above the center of the oil outlet pipeline 15, and the pipes on the left and right sides of the oil outlet pipeline 15 are vertically downward. The oil outlet pipeline 15 mainly collects the thrown oil, and the fan outlet 16 can discharge the smoke to the outside without any obstruction. However, due to the centrifugal force of the wind wheel 14, the oil is likely to remain on the inner wall of the oil outlet pipeline 15, and the oil slowly slides to the bottom and finally drips into the inside of the oil tank 2.

[0035] The working principle of the present invention is:

[0036] The user first starts the hydraulic push rod 10. Since the hydraulic push rod 10 will push the second rack 1001 obliquely downward, during the process of the second rack 1001 being pushed horizontally, because the third gear 7 meshes with the second rack 1001, and initially the third gear 7 does not mesh with the first rack 3, because a certain section of the first rack 3 has no teeth, so the second rack 1001 will drive the third gear 7 to move horizontally together until the two ends of the shaft of the third gear 7 contact the limit ring 8. The limit ring 8 can prevent the third gear 7 from sliding horizontally. At this time, the third gear 7 also meshes with the first rack 3. Before the third gear 7 is locked, the second rack 1001 being pushed horizontally will only drive the fourth gear 12 to rotate through meshing, so that the air baffle 13 rotates, opening the air inlet channel at the front end of the outer frame 1 of the range hood, so that gas can enter normally. At this time, it is the state where the user can normally use the range hood. Only by driving the wind wheel 14 to rotate can the flue gas be absorbed and exhausted. If the outer frame 1 of the range hood needs to be cleaned, it is necessary to continue to let the hydraulic push rod 10 push the second rack 1001 to slide horizontally. Since the third gear 7 is completely restricted by the limit ring 8, the third gear 7 will slide relative to the sliding rod 9 and the sliding groove 11. Since the rotation of the third gear 7 can drive the first rack 3 to move horizontally, the cleaning cotton roller 4 and the first gear 5 are driven by the connecting rod to slide horizontally along the front end face of the outer frame 1 of the range hood together. The first gear 5 can wipe and clean the front end face of the outer frame 1 of the range hood. When the first gear 5 contacts the third rack 25, it will drive the cleaning cotton roller 4 and the first gear 5 to rotate, so that different surfaces of the cleaning cotton roller 4 contact the front end face of the outer frame 1 of the range hood. In this way, not only one surface will always contact the outer frame 1 of the range hood during cleaning. And at the same time, during the rotation of the second gear 6, it can drive the reciprocating lead screw 17 to rotate. The reciprocating lead screw 17 can push the connecting sleeve 18 to move left and right reciprocally, so as to push the push rod 19 to slide reciprocally in the piston cylinder 20. Such reciprocating sliding can make the piston inside slide left and right reciprocally, draw liquid from the inside of the liquid storage tank 24 through the liquid inlet pipe 21, and then push the liquid out of the piston cylinder 20. The liquid inlet pipe 21 can only let in liquid and cannot let out liquid, while the liquid outlet pipe 22 can only let out liquid and cannot let in liquid. The liquid is flushed to the position of the cleaning cotton roller 4, so as to achieve a better scrubbing effect.

[0037] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0038] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oil fume purifier that can be automatically cleaned, characterized in that: It includes an outer frame (1) of a range hood. At the bottom of the inner wall of the outer frame (1) of the range hood, an oil sump (2) is installed through grooving. On one side of the inner wall of the outer frame (1) of the range hood, a first rack (3) is slidably connected through grooving. On one side of the first rack (3), a cleaning cotton roller (4) is connected through a connecting rod. On the left and right sides of the cleaning cotton roller (4), first gears (5) are installed. On one side of the outer wall of the first rack (3), a second gear (6) is meshed and connected. On the other side of the first rack (3), a third gear (7) is meshed and connected. A limiting ring (8) is fixedly connected to the inner wall of the outer frame (1) of the range hood. On one side of the outer wall of the third gear (7), a sliding rod (9) is rotatably connected through a bearing. A hydraulic push rod (10) is installed on the inner wall of the outer frame (1) of the range hood. The telescopic end of the hydraulic push rod (10) is connected to a second rack (1001). On one side of the outer wall of the second rack (1001), a sliding groove (11) is opened. The sliding groove (11) and the sliding rod (9) form a sliding connection. On one side of the outer wall of the second rack (1001), a fourth gear (12) is meshed and connected. On one side of the fourth gear (12), a gas shielding plate (13) is installed. A wind wheel (14) is installed on the inner wall of the outer frame (1) of the range hood. An oil outlet pipeline (15) is installed on the outer wall of the wind wheel (14). At the top of the oil outlet pipeline (15), an oil outlet fan opening (16) is installed. The shaft end of the second gear (6) is connected to a reciprocating lead screw (17) through an opening. A connecting sleeve (18) is connected to the outer wall of the reciprocating lead screw (17). On one side of the outer wall of the connecting sleeve (18), a push rod (19) is fixedly connected. The push rod (19), a piston cylinder (20) is installed on one side of the outer wall of the outer frame (1) of the range hood. The side of the piston cylinder (20) is movably connected to the push rod (19) through an opening. One end of the push rod (19) forms a sliding connection with the inner wall of the piston cylinder (20) through a connecting piston. An inlet liquid pipe (21) and an outlet liquid pipe (22) are respectively connected to the outer wall of the piston cylinder (20). A liquid storage tank (24) is installed on the top of the outer frame (1) of the range hood; On the front end face of the outer frame (1) of the range hood, a third rack (25) is fixedly connected. The third rack (25) is located on both sides of the gas shielding plate (13). The third rack (25) is meshed and connected with the first gear (5); The first rack (3) is fixedly connected to the side connecting rod. The connecting rod and the first gear (5) are rotatably connected through a bearing.

2. The automatic cleaning range hood according to claim 1, characterized in that: The outlet liquid pipe (22) is connected to the shaft end of the cleaning cotton roller (4) through a hose. One end of the inlet liquid pipe (21) is connected to the liquid storage tank (24) through a hose. Check valves are installed on both the outlet liquid pipe (22) and the inlet liquid pipe (21).

3. The automatic cleaning range hood according to claim 1, wherein: The shaft end of the wind wheel (14) is connected to a driving motor.

4. The automatic cleaning range hood according to claim 1, characterized in that: On the front end face of the outer frame (1) of the range hood, a display (26) is installed. On the top of the outer frame (1) of the range hood, a smoke outlet pipe (23) is fixedly connected. The smoke outlet pipe (23) is located directly above the wind wheel (14).

5. The automatic cleaning range hood according to claim 1, characterized in that: The outlet fan opening (16) is located directly above the center of the oil outlet pipeline (15), and the pipelines on the left and right sides of the oil outlet pipeline (15) extend vertically downward.

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