A smoke filtering device

Abstract

The utility model provides a kind of smoke filtering device, it is related to the field of range hood, including filter bin, the lower end of the filter bin is equipped with curved air inlet pipe, the upper end shell wall of the filter bin is equipped with exhaust pipe, the inside of the filter bin is equipped with built-in filter element.The utility model drives vertical shaft to rotate by motor, and then make fixed pipe head and the built-in filter element connected therewith synchronous rotation, built-in filter element rotation generates centrifugal force, can effectively throw off oil liquid adhered to the inner surface of built-in filter element, can promptly remove surface oil liquid, avoid the influence of oil liquid accumulation on filtering effect, so that built-in filter element always maintains good filtering state;The U-shaped pipe design of curved air inlet pipe can make part of oil liquid condense and sink to the lowest end under the action of gravity, and then rotate valve wheel adjustment control valve opens, let stored oil liquid directly discharge through oil discharge pipe, convenient for centralized treatment of oil liquid, keep the inside of device and the clean environment of range hood periphery.

Description

Technical Field

[0001] This utility model relates to the field of range hoods, and in particular to a smoke filtration device. Background Technology

[0002] As an indispensable kitchen appliance, one of the core functions of a range hood is to filter out the smoke and fumes generated during cooking, thereby reducing oil fume pollution in the kitchen, protecting human health, and maintaining a clean kitchen environment.

[0003] Regarding filter usage, traditional range hood filters are mostly fixed installations. When fumes pass through the filter, the grease easily adheres, accumulates, and condenses on the filter surface. Over time, this grease gradually solidifies and clogs the filter pores, significantly reducing filtration efficiency. This not only affects the range hood's smoke extraction performance but also increases energy consumption due to obstructed airflow. More importantly, the accumulated grease is difficult to remove easily, forcing users to frequently disassemble the filter for cleaning or replacement. This is not only cumbersome but can also damage the filter due to improper disassembly, increasing operating costs and maintenance burden.

[0004] Therefore, it is necessary to provide a new smoke filtration device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a smoke filtration device.

[0006] This utility model provides a smoke filtration device comprising: a filter chamber, a curved air inlet pipe at the lower end of the filter chamber, an exhaust pipe on the upper shell wall of the filter chamber, and an internal filter element; and a high-efficiency oil removal mechanism, comprising a stabilizing ring fixedly connected to the lower inner wall of the filter chamber, a locking protrusion on the lower outer wall of the internal filter element, a fixing pipe head fixedly connected to the top opening of the internal filter element, the fixing pipe head being connected to the outlet of the exhaust pipe, and a driving assembly between the fixing pipe head and the filter chamber.

[0007] Preferably, the inner wall of the stabilizing ring is provided with an embedded annular groove, the locking protrusion is provided in the embedded annular groove, the end of the fixing pipe head is rotatably connected to the lower end of the exhaust pipe, and the built-in filter element is cone-shaped.

[0008] Preferably, the drive assembly includes a gear ring, which is fixedly connected to the outer wall of the fixed tube head. A vertical shaft is rotatably connected to the upper shell wall of the filter chamber, and a gear is fixedly connected to the lower end of the vertical shaft. The gear meshes with the gear ring.

[0009] Preferably, the gear is located on one side of the gear ring, and the gear is flush with the gear ring.

[0010] Preferably, a motor is installed and connected to the upper shell wall of the filter chamber, and the output end of the motor is fixedly connected to the top of the vertical shaft.

[0011] Preferably, one end of the curved air inlet pipe is designed as a U-shaped pipe, and an oil drain pipe is provided at the lower end of the curved air inlet pipe.

[0012] Preferably, a control valve is installed inside the oil drain pipe, and the control valve is equipped with a valve wheel.

[0013] Compared with related technologies, the smoke filtration device provided by this utility model has the following beneficial effects:

[0014] 1. This utility model uses a motor to drive the vertical shaft to rotate, and the gear at the lower end of the vertical shaft drives the gear ring to rotate, thereby causing the fixed tube head and the built-in filter connected to it to rotate synchronously. The rotation of the built-in filter generates centrifugal force, which can effectively throw off the oil adhering to the inner surface of the built-in filter. Compared with the filter of traditional range hood, the centrifugal force can remove the surface oil in time, avoiding the impact of oil accumulation on the filtration effect, keeping the built-in filter in a good filtration state, extending the effective service life of the filter, and reducing the trouble of frequent replacement due to filter blockage.

[0015] 2. This utility model utilizes a U-shaped design in the curved air inlet pipe, allowing some oil to condense and sink to the lowest point under gravity. The valve wheel is then turned to open the control valve, allowing the accumulated oil to be directly discharged through the drain pipe. This design overcomes the inconvenience of oil collection and discharge in traditional range hoods. Users can flexibly control the timing and flow rate of oil discharge according to actual conditions, avoiding pollution caused by oil overflow. Simultaneously, the orderly oil discharge method facilitates centralized oil treatment, maintaining the cleanliness of the device's interior and surrounding environment, and reducing the difficulty of cleaning and maintenance. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of this utility model;

[0017] Figure 2 for Figure 1 An exploded view of a preferred embodiment is shown below;

[0018] Figure 3 for Figure 2 The diagram shows the structure at point A.

[0019] The following are the labels in the diagram: 1. Filter chamber; 2. Curved air inlet pipe; 21. Exhaust pipe; 3. Built-in filter element; 4. Stabilizing ring; 41. Locking protrusion ring; 42. Fixed pipe head; 5. Gear ring; 51. Vertical shaft; 52. Gear; 6. Motor; 7. Oil drain pipe; 71. Control valve; 8. Valve wheel. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figures 1 to 3 A smoke filtration device includes: a filter chamber 1, a curved air inlet pipe 2 at the lower end of the filter chamber 1, an exhaust pipe 21 on the upper shell wall of the filter chamber 1, and an internal filter element 3 inside the filter chamber 1; a high-efficiency oil removal mechanism, including a stabilizing ring 4, which is fixedly connected to the lower inner wall of the filter chamber 1, a locking protrusion ring 41 on the lower outer wall of the internal filter element 3, a fixed pipe head 42 fixedly connected to the top opening of the internal filter element 3, the fixed pipe head 42 being connected to the opening of the exhaust pipe 21, and a driving component between the fixed pipe head 42 and the filter chamber 1.

[0022] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the inner wall of the stabilizing ring 4 is provided with an embedded annular groove, the locking protrusion 41 is provided in the embedded annular groove, the end of the fixing pipe head 42 is rotatably connected to the lower end of the exhaust pipe 21, and the built-in filter element 3 is set in a cone shape.

[0023] It should be noted that: the locking protrusion 41 on the lower outer wall of the built-in filter element 3 is locked in the embedded annular groove on the inner wall of the stabilizing ring 4, and the fixed pipe head 42 at the top is rotatably connected to the lower end of the exhaust pipe 21. When the fixed pipe head 42 and the built-in filter element 3 connected thereto rotate synchronously, the rotation of the built-in filter element 3 generates centrifugal force, which causes the oil adhering to its inner surface to be thrown off the surface under the action of centrifugal force, effectively solving the problem of oil accumulation, adhesion and condensation on the surface of the filter element, and ensuring the filtration effect of the built-in filter element 3.

[0024] The built-in filter element 3 is designed in a cone shape, which allows the oil to slide off the wall using centrifugal force while it rotates.

[0025] refer to Figure 2 and Figure 3 As shown, the drive assembly includes a gear ring 5, which is fixedly connected to the outer wall of the fixed tube head 42. A vertical shaft 51 is rotatably connected to the upper shell wall of the filter chamber 1, and a gear 52 is fixedly connected to the lower end of the vertical shaft 51. The gear 52 meshes with the gear ring 5.

[0026] It should be noted that the rotation of the gear 52 at the lower end of the vertical shaft 51 will drive the gear ring 5 to rotate, thereby causing the fixed tube head 42 and the built-in filter element 3 connected thereto to rotate synchronously. The rotation of the built-in filter element 3 generates centrifugal force, which causes the oil adhering to its inner surface to be thrown off the surface under the action of centrifugal force.

[0027] refer to Figure 3 As shown, gear 52 is located on one side of gear ring 5, and gear 52 is flush with gear ring 5.

[0028] It should be noted that gear 52 is flush with gear ring 5 to ensure that the rotation of gear 52 can drive gear ring 5 to rotate synchronously.

[0029] refer to Figure 1 and Figure 2 As shown, a motor 6 is installed and connected to the upper shell wall of the filter chamber 1, and the output end of the motor 6 is fixedly connected to the top end of the vertical shaft 51.

[0030] It should be noted that: the starting motor 6 drives the vertical shaft 51 to rotate, which in turn drives the gear 52 to rotate, which is the main driving force.

[0031] refer to Figure 1 and Figure 2 As shown, one end of the curved air inlet pipe 2 is designed as a U-shaped pipe, and an oil drain pipe 7 is provided at the lower end of the curved air inlet pipe 2.

[0032] It should be noted that: during the filtration process, some of the oil produced will condense at the U-shaped pipe of the curved air inlet pipe 2 and will be discharged to the lowest end of the curved air inlet pipe 2 under the action of gravity. The accumulated oil can be discharged through the oil drain pipe 7.

[0033] refer to Figure 2 Figure 2 As shown, a control valve 71 is installed inside the oil drain pipe 7, and a valve wheel 8 is provided on the control valve 71.

[0034] It should be noted that rotating the valve wheel 8 adjusts the opening of the control valve 71, allowing the accumulated oil to be discharged through the oil drain pipe 7. This facilitates the adjustment of the timing and flow rate of oil discharge according to actual conditions, thus achieving effective discharge of the filtered oil.

[0035] The working principle of the smoke filtration device provided by this utility model is as follows: When the range hood is working, the oily smoke generated during cooking enters the filter chamber 1 through the curved air inlet pipe 2. After entering the filter chamber 1, the smoke passes through the built-in filter element 3, which filters impurities such as oily smoke from the smoke. The locking protrusion 41 on the lower outer wall of the built-in filter element 3 is engaged in the embedded annular groove on the inner wall of the stabilizing ring 4. The fixed pipe head 42 at the top is rotatably connected to the lower end of the exhaust pipe 21. Then, the motor 6 is started, and its output end drives the vertical shaft 51 to rotate. The gear 52 at the lower end of the vertical shaft 51 rotates accordingly. The rotation of the gear 52 drives the gear ring 5 to rotate, thereby causing the fixed pipe head 42 and the built-in filter element 3 connected to it to rotate synchronously. The rotation of the built-in filter element 3 generates centrifugal force, which causes the oil adhering to its inner surface to be thrown off the surface under the action of centrifugal force, effectively solving the problem of oil accumulation, adhesion and condensation on the surface of the filter element, and ensuring the filtration effect of the built-in filter element 3.

[0036] During the filtration process, some of the oil produced condenses at the U-shaped section of the curved air inlet duct 2. Under gravity, it flows down to the lowest point of the curved air inlet duct 2. Then, the valve wheel 8 is rotated to open the control valve 71, allowing the accumulated oil to be discharged through the oil drain pipe 7. This allows for adjustment of the timing and flow rate of oil discharge according to actual conditions, achieving effective discharge of the filtered oil. The clean gas filtered by the built-in filter element 3 enters the exhaust pipe 21 through the fixed pipe head 42 and is finally discharged from the filter chamber 1.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A smoke filtering device, characterized in that, include: The filter chamber (1) has a curved air inlet pipe (2) at its lower end and an exhaust pipe (21) on its upper shell wall. The filter chamber (1) has an internal filter element (3). The high-efficiency oil removal mechanism includes a stabilizing ring (4), which is fixedly connected to the lower inner wall of the filter chamber (1). The lower outer wall of the built-in filter element (3) is provided with a locking protrusion ring (41). A fixing pipe head (42) is fixedly connected to the top opening of the built-in filter element (3). The fixing pipe head (42) is connected to the opening of the exhaust pipe (21). A driving component is provided between the fixing pipe head (42) and the filter chamber (1).

2. The smoke filtering device according to claim 1, characterized in that, The inner wall of the stabilizing ring (4) is provided with an embedded annular groove, the locking protrusion (41) is located in the embedded annular groove, the end of the fixed pipe head (42) is rotatably connected to the lower end of the exhaust pipe (21), and the built-in filter element (3) is set in a cone shape.

3. The smoke filtering device according to claim 1, characterized in that, The drive assembly includes a gear ring (5), which is fixedly connected to the outer wall of the fixed tube head (42). A vertical shaft (51) is rotatably connected to the upper shell wall of the filter chamber (1). A gear (52) is fixedly connected to the lower end of the vertical shaft (51). The gear (52) meshes with the gear ring (5).

4. A smoke filtering device according to claim 3, characterized in that, The gear (52) is located on one side of the gear ring (5), and the gear (52) is flush with the gear ring (5).

5. A smoke filtering device according to claim 1, characterized in that, A motor (6) is installed on the upper shell wall of the filter chamber (1), and the output end of the motor (6) is fixedly connected to the top end of the vertical shaft (51).

6. A smoke filtering device according to claim 1, characterized in that, One end of the curved air inlet pipe (2) is designed as a U-shaped pipe, and an oil drain pipe (7) is provided at the lower end of the curved air inlet pipe (2).

7. A smoke filtering device according to claim 6, characterized in that, The oil drain pipe (7) is internally connected to a control valve (71), and the control valve (71) is equipped with a valve wheel (8).

Images