Self-cleaning range hood

Abstract

The utility model discloses a self-cleaning range hood and relates to the technical field of kitchen and bath equipment. After the range hood is used for a long time, oil stains attached to a separation cylinder can cause the increase of self weight and the increase of power consumption of a motor, uneven noise is generated, and the cooking experience of a user is influenced. The range hood comprises a machine body, and further comprises a motor fixed outside the machine body, a mounting cylinder fixed on the inner wall of the machine body and a separation cylinder used for separating oil smoke from air during rotation, the separation cylinder is rotatably connected to the interior of the mounting cylinder, and a driving shaft of the motor is fixedly connected with a telescopic rod. The telescopic end of the telescopic rod penetrates through the mounting cylinder and is fixedly connected with a scraper, the scraper is slidably connected into the separation cylinder, the telescopic rod is controlled to stretch out and draw back to drive the scraper to slide in the separation cylinder, the scraper slides relative to the separation cylinder, and the scraper pushes oil stains attached to blades of the separation cylinder in the sliding process. And oil stains are accumulated together and then drop, so that the oil stains are cleaned, energy is saved, and noise is reduced.

Description

Technical Field

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

[0002] A range hood is an electrical device installed above a kitchen stove, mainly used for sucking and discharging oil fumes, hot air and peculiar smells generated during cooking. It usually consists of a housing, a separation system, a filter screen, a lighting device, a control system and other parts.

[0003] The separation system mainly includes a motor and a separation cylinder. The motor drives the separation cylinder to rotate, sucks the air containing oil fumes into the range hood, and separates the oil fumes in the air from the air under the action of centrifugal force to achieve the filtration of oil fumes.

[0004] Since the oil fumes will come into direct contact with the separation cylinder after being sucked into the range hood, oil stains will adhere to the blades of the separation cylinder after long-term use, increasing the self-weight of the separation cylinder, thereby increasing the power consumption of the motor. In addition, the uneven distribution of oil stains on the separation cylinder will also cause an increase in the noise generated when the separation cylinder rotates, affecting the user's cooking experience. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem that oil stains will adhere to the blades of the separation cylinder after long-term use, increasing the self-weight of the separation cylinder, thereby increasing the power consumption of the motor. In addition, the uneven distribution of oil stains on the separation cylinder will also cause an increase in the noise generated when the separation cylinder rotates, affecting the user's cooking experience, and to provide a self-cleaning range hood.

[0006] In order to achieve the above purpose, the utility model adopts the following self-cleaning range hood:

[0007] It includes a body, and also includes: a motor fixed to the outside of the body, an installation cylinder fixed to the inner wall of the body, and a separation cylinder used for separating oil fumes from air when rotating;

[0008] The separation cylinder is rotatably connected to the inside of the installation cylinder. The driving shaft of the motor is fixedly connected with a telescopic rod. The telescopic end of the telescopic rod penetrates through the installation cylinder and is fixedly connected with a scraping plate. The scraping plate is slidably connected to the inside of the separation cylinder.

[0009] As a further description of the above-mentioned self-cleaning range hood: A liquid adding tank and a pump are fixedly connected to the outside of the body. A connecting member is fixedly connected to the inner wall of the installation cylinder. A plurality of spray heads arranged in a circumferential array are installed on one side of the connecting member close to the separation cylinder. The water inlet and outlet ends of the pump are respectively communicated with the liquid adding tank and the connecting member.

[0010] As a further description of a self-cleaning range hood of the above technology: A cover body is fixedly connected to the inner wall of the installation cylinder. The cover body is located outside the connecting member and the nozzle. Circular holes are provided at positions on the cover body close to each nozzle. A baffle is rotatably connected inside the installation cylinder.

[0011] As a further description of a self-cleaning range hood of the above technology: Through holes with the same diameter as the circular holes on the cover body are provided on the baffle, and the distance between adjacent through holes is the same as the distance between adjacent circular holes on the cover body. A seal is provided between the cover body and the baffle.

[0012] As a further description of a self-cleaning range hood of the above technology: A convex rod is fixedly connected to the side of the cover body close to the baffle. A positioning hole is provided on the baffle, and the convex rod is inserted into the positioning hole of the baffle.

[0013] As a further description of a self-cleaning range hood of the above technology: A fixing ring is fixedly connected to the side of the separation cylinder close to the baffle. The fixing ring is in the same plane as the baffle. A spring pin is installed inside the fixing ring, and an electromagnet is fixedly connected inside the fixing ring.

[0014] In summary, due to the adoption of a self-cleaning range hood of the above technology, the beneficial effects of the present utility model are as follows:

[0015] 1. Control the telescopic rod to expand and contract to drive the scraper to slide inside the separation cylinder, so that the scraper slides relative to the separation cylinder. During the sliding process, the scraper will push the oil stains attached to the blades of the separation cylinder, causing the oil stains to accumulate and drip, realizing the cleaning of the oil stains, avoiding the increase in the self-weight of the separation cylinder after long-term use, resulting in an increase in the energy consumption of the motor, achieving the effect of saving energy, and avoiding the center of gravity of the separation cylinder being shifted by the oil fume, reducing the noise generated during the rotation of the separation cylinder, and thus improving the use effect of the device.

[0016] 2. The cleaning liquid in the liquid adding tank is transported to the connecting member through the pump, so that the cleaning liquid is sprayed from the nozzle onto the blades of the separation cylinder. By treating the oil stains with the cleaning liquid, it can prevent the oil stains from adhering to the separation cylinder due to their own viscosity, realizing the further cleaning of the separation cylinder, thereby improving the oil fume removal effect of the device, and the nozzle can be shielded by the cover body and the baffle to avoid the nozzle being blocked by the oil fume, thus prolonging the service life of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall three-dimensional view of the present utility model;

[0018] Figure 2 is the internal structure diagram of the present utility model;

[0019] Figure 3 is the sectional view of the installation cylinder of the present utility model;

[0020] Figure 4 is the enlarged view of part A in the Figure 4 present utility model;

[0021] Figure 5 is the exploded view of the cover structure of the present utility model.

[0022] Legend:

[0023] 1. Machine body; 2. Motor; 3. Installation cylinder; 4. Separation cylinder; 5. Telescopic rod; 6. Scraper; 7. Liquid adding tank; 8. Pump; 9. Connecting piece; 10. Nozzle; 11. Cover body; 12. Baffle; 13. Convex rod; 14. Fixed ring; 15. Spring pin; 16. Electromagnet. Specific embodiments

[0024] Next, the technical solution of a self-cleaning range hood in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0025] The present utility model adopts the following technical solution of a self-cleaning range hood:

[0026] It includes a machine body 1, and also includes: a motor 2 fixed outside the machine body 1, an installation cylinder 3 fixed to the inner wall of the machine body 1, and a separation cylinder 4 for separating oil fume and air during rotation;

[0027] The separation cylinder 4 is rotatably connected to the inside of the installation cylinder 3. The drive shaft of the motor 2 is fixedly connected with a telescopic rod 5. The telescopic end of the telescopic rod 5 penetrates through the installation cylinder 3 and is fixedly connected with a scraper 6. The scraper 6 is slidably connected to the inside of the separation cylinder 4. The blades of the separation cylinder 4 are embedded in the edge gaps of the scraper 6. The telescopic movement of the telescopic rod 5 will drive the scraper 6 to slide inside the separation cylinder 4, pushing the oil stains attached to the blades of the separation cylinder 4 so that the oil stains accumulate and then drip.

[0028] Furthermore, a liquid adding tank 7 and a pump 8 are fixedly connected to the outside of the machine body 1. A connecting piece 9 is fixedly connected to the inner wall of the installation cylinder 3. A plurality of nozzles 10 arranged in a circumferential array are installed on one side of the connecting piece 9 close to the separation cylinder 4. Each nozzle 10 inclines towards the direction close to the separation cylinder 4. The water inlet and outlet ends of the pump 8 are respectively communicated with the liquid adding tank 7 and the connecting piece 9.

[0029] Further, the inner wall of the installation cylinder 3 is fixedly connected with a cover body 11. The cover body 11 is located outside the connecting member 9 and the nozzle 10. Circular holes are formed in the cover body 11 at positions close to each nozzle 10. The cleaning liquid sprayed by the nozzle 10 can pass through the circular holes and be sprayed onto the separation cylinder 4. A baffle 12 is rotatably connected inside the installation cylinder 3.

[0030] Further, through holes having the same diameter as the circular holes in the cover body 11 are formed in the baffle 12, and the distance between adjacent through holes is the same as the distance between adjacent circular holes in the cover body 11. A seal is provided between the cover body 11 and the baffle 12. The through holes of the baffle 12 and the circular holes of the cover body 11 are arranged in a staggered manner. When the nozzle 10 does not spray the cleaning liquid, the baffle 12 seals the cover body 11 to prevent oil fume from entering the interior of the cover body 11 and causing the water outlet of the nozzle 10 to be blocked.

[0031] Further, a convex rod 13 is fixedly connected to one side of the cover body 11 close to the baffle 12. A positioning hole is formed in the baffle 12. The convex rod 13 is inserted into the positioning hole of the baffle 12. The convex rod 13 is used to position the baffle 12 and control the rotation angle of the baffle 12, so as to facilitate the alignment of the through hole of the baffle 12 with the circular hole of the cover body 11.

[0032] Further, a fixing ring 14 is fixedly connected to one side of the separation cylinder 4 close to the baffle 12. The fixing ring 14 and the baffle 12 are in the same plane. A spring pin 15 is installed inside the fixing ring 14. An electromagnet 16 is fixedly connected inside the fixing ring 14. A magnet is fixed inside the spring pin 15. After the electromagnet 16 is energized, it repels the magnet. The spring pin 15 is composed of a pin body and a spring. After the spring pin 15 abuts against the inner wall of the baffle 12, the rotation of the fixing ring 14 can drive the spring pin 15 and the baffle 12 to rotate under the action of friction.

[0033] Working principle: Control the telescopic rod 5 to expand and contract to drive the scraper 6 to slide inside the separation cylinder 4. Since the blades of the separation cylinder 4 are embedded inside the scraper 6, the scraper 6 can push the oil stains attached to the blades of the separation cylinder 4 during the sliding process, causing the oil stains to accumulate and drip, realizing the cleaning of the oil stains.

[0034] Inject the cleaning liquid into the liquid adding tank 7, start the pump 8 to transport the cleaning liquid in the liquid adding tank 7 to the connecting member 9, so that the cleaning liquid is sprayed from the nozzle 10 onto the blades of the separation cylinder 4, realizing the further cleaning of the separation cylinder 4.

[0035] When the nozzle 10 is idle, the through holes of the baffle 12 and the circular holes of the cover body 11 are staggered, so the baffle 12 seals the cover body 11 to prevent oil fume from entering the interior of the cover body 11 and causing the water outlet of the nozzle 10 to be blocked.

[0036] When it is necessary to clean the separation cylinder 4, the electromagnet 16 is energized to make the spring pin 15 abut against the inner wall of the baffle 12. At this time, the rotation of the separation cylinder 4 drives the fixed ring 14 and the baffle 12 to rotate, so that the through hole of the baffle 12 is aligned with the circular hole of the cover body 11. At this time, the spray head 10 can spray the cleaning liquid onto the separation cylinder 4 to complete the cleaning of the separation cylinder 4. Under the positioning of the convex rod 13, the single rotation angle of the baffle 12 is convenient to control.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical concept of the present invention, makes equivalent replacements or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A self-cleaning range hood, comprising a body (1), characterized in that, Further included are: a motor (2) fixed outside the body (1), a mounting cylinder (3) fixed to the inner wall of the body (1), and a separation cylinder (4) for separating oil fume from air during rotation; the separation cylinder (4) is rotatably connected to the inside of the mounting cylinder (3), a telescopic rod (5) is fixedly connected to the drive shaft of the motor (2), the telescopic end of the telescopic rod (5) penetrates through the mounting cylinder (3) and is fixedly connected to a scraper (6), and the scraper (6) is slidably connected to the inside of the separation cylinder (4).

2. The self-cleaning range hood according to claim 1, wherein a liquid adding tank (7) and a pump (8) are fixedly connected to the outside of the body (1), a connecting member (9) is fixedly connected to the inner wall of the mounting cylinder (3), a plurality of spray heads (10) arranged in a circumferential array are installed on one side of the connecting member (9) close to the separation cylinder (4), and the inlet and outlet ends of the pump (8) are respectively communicated with the liquid adding tank (7) and the connecting member (9).

3. The self-cleaning range hood according to claim 2, wherein, a cover body (11) is fixedly connected to the inner wall of the mounting cylinder (3), the cover body (11) is located outside the connecting member (9) and the spray heads (10), circular holes are formed in the cover body (11) at positions close to each spray head (10), and a baffle (12) is rotatably connected to the inside of the mounting cylinder (3).

4. The self-cleaning range hood according to claim 3, wherein, through holes having the same diameter as the circular holes on the cover body (11) are formed in the baffle (12), and the distance between adjacent through holes is the same as the distance between adjacent circular holes on the cover body (11), and the cover body (11) and the baffle (12) are sealed.

5. The self-cleaning range hood according to claim 4, wherein, a convex rod (13) is fixedly connected to one side of the cover body (11) close to the baffle (12), a positioning hole is formed in the baffle (12), and the convex rod (13) is embedded in the positioning hole of the baffle (12).

6. The self-cleaning range hood according to claim 5, wherein a fixing ring (14) is fixedly connected to one side of the separation cylinder (4) close to the baffle (12), the fixing ring (14) and the baffle (12) are in the same plane, a spring pin (15) is installed inside the fixing ring (14), and an electromagnet (16) is fixedly connected to the inside of the fixing ring (14).

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