A range hood that is easy to clean

Abstract

The utility model relates to range hood technical field discloses a kind of range hood convenient to clean, including range hood body, the range hood body includes shell, fan, oil screen assembly and oil collection component, the fan, oil screen assembly are all arranged in shell, the oil collection component is located shell lower part, the oil screen assembly rotation is installed in shell, adjusting mechanism that the rotation angle of oil screen assembly can be adjusted is also equipped in shell, the adjusting mechanism includes fixed frame, drive motor, winding roller and pull rope, the fixed frame is fixedly installed in the inner wall top of shell by bolt, the drive motor is fixedly installed on fixed frame, the output shaft of drive motor penetrates fixed frame, the winding roller is fixedly installed in one end of drive motor penetration fixed frame. Its purpose is, to solve the current range hood generally adopts fixed oil screen structure of inclination, rely on gravity to guide oil liquid to flow downward, and its oil guide effect is not good.

Description

Technical Field

[0001] This utility model belongs to the field of range hood technology, specifically relating to a range hood that is easy to clean. Background Technology

[0002] Range hoods are key devices in kitchens for purifying cooking fumes. They use a fan system to generate negative pressure, drawing cooking fumes into the machine and separating them into oil mist using a filtration system. The grease is then collected in an oil collection tank, and the purified gas is discharged. The oil filter, as the core filtration component, has a surface morphology and tilt angle design that directly affects the efficiency and speed at which oil droplets are intercepted and released.

[0003] Existing technologies generally employ a fixed-angle oil mesh structure, relying on gravity to guide the oil downwards. However, oil droplets on the mesh surface are prone to forming an adhesive oil film due to surface tension. Especially under low-temperature conditions with high oil viscosity, the flow resistance increases significantly, leading to problems such as oil retention and mesh blockage, which severely weakens the long-term stability and cleaning efficiency of the equipment.

[0004] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Utility Model Content

[0005] The purpose of this invention is to solve the problem that current range hoods generally use a fixed-angle oil mesh structure, which relies on gravity to guide the oil downwards, resulting in poor oil guiding effect.

[0006] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0007] A range hood that is easy to clean includes a range hood body, the range hood body including a shell, a fan, an oil filter assembly and an oil collection assembly, the fan and the oil filter assembly are both disposed inside the shell, the oil collection assembly is located at the lower part of the shell, the oil filter assembly is rotatably installed inside the shell, and the shell is also provided with an adjustment mechanism that can adjust the rotation angle of the oil filter assembly;

[0008] The adjustment mechanism includes a fixed frame, a drive motor, a winding roller, and a pull rope. The fixed frame is bolted to the top of the inner wall of the outer casing. The drive motor is fixedly mounted on the fixed frame, and its output shaft passes through the fixed frame. The winding roller is fixedly mounted at one end of the drive motor that passes through the fixed frame. One end of the pull rope is fixedly connected to the winding roller, and the other end is connected to the oil filter assembly. With this structural design, the drive motor rotates the winding roller, and the pull rope pulls the oil filter assembly to rotate within the outer casing, causing it to tilt at different angles. When the range hood stops working, the tilt angle of the oil filter assembly relative to the horizontal plane is increased, allowing the oil on the filter to flow downwards more quickly.

[0009] Further specifying, the oil filter assembly includes a rotating frame and an oil filter. The lower end of the rotating frame has a rotating shaft, and the rotating frame is rotatably mounted inside the housing via the rotating shaft. The upper end of the rotating frame is fixedly connected to the end of the pull rope. The oil filter is located inside the rotating frame and is made of a double-layer alloy material, with a heating wire and a power supply module housed within its interlayer. This structural design allows the power supply module to activate when the range hood stops working, and to power the heating wire for a period of time, raising the temperature of the oil filter and allowing the oil to flow smoothly downwards.

[0010] Furthermore, the lower end of the oil mesh is provided with locking teeth, the rotating frame is provided with an installation groove for placing the oil mesh, the installation groove has a locking slot adapted to the locking teeth, and the rotating frame is provided with a locking mechanism to lock the oil mesh in the rotating frame. This structural design, through the locking mechanism and locking slots, facilitates the disassembly and assembly of the oil mesh on the rotating frame, making it convenient for cleaning or replacement of the oil mesh.

[0011] Furthermore, the locking mechanism includes an arc-shaped adapter seat and a rotating locking block, with the rotating locking block rotatably mounted within the arc-shaped adapter seat. This structural design is simple and easy to use.

[0012] Furthermore, a fixing strip is fixedly installed on the upper end of the inner wall of the outer casing near the front, and a limit strip is fixedly installed at the end of the fixing strip. When the oil filter assembly has its smallest tilt angle, the rotating frame overlaps the limit strip. This structural design can limit the tilt angle of the oil filter assembly, preventing the tilt angle of the oil filter assembly relative to the horizontal plane from being too small and affecting other components of the range hood.

[0013] Further specifying, the oil collection assembly includes an oil guide plate and an oil collection trough. The oil guide plate is located on the front of the outer casing near the lower end. A bent receiving plate is fixedly installed on the oil guide plate, close to the lower end of the rotating frame. The oil collection trough is movably engaged with the lower end of the outer casing, and the lower end of the oil guide plate extends into the oil collection trough. Multiple oil leakage holes are provided at the bottom of the outer casing. This structural design allows the bent receiving plate, in conjunction with the oil guide plate, to guide oil dripping from the oil filter to the oil collection trough at the bottom of the range hood for waste oil collection.

[0014] Furthermore, two snap-fit ​​fasteners are symmetrically fixedly installed on the oil guide plate, and the outer shell has snap-fit ​​grooves that fit the two snap-fit ​​fasteners. This structural design allows the oil guide plate to be disassembled, facilitating the removal and cleaning of the oil guide plate and the bent receiving plate.

[0015] Further specifying, a spraying mechanism is provided above the oil screen assembly. This spraying mechanism includes a strip-shaped spray pipe, a storage tank for holding the degreasing agent, a delivery pipe, and a pump located at the bottom of the storage tank's inner wall. The strip-shaped spray pipe is fixedly installed on the upper inner wall of the outer casing, with its spray direction facing the upper part of the oil screen. The storage tank is also fixedly installed on the upper inner wall of the outer casing. One end of the delivery pipe passes through the bottom of the storage tank and is fixedly connected to the output port of the pump, while the other end is fixedly connected to the input port of the strip-shaped spray pipe. This structural design allows the pump to deliver the degreasing agent to the strip-shaped spray pipe via the delivery pipe, which then sprays the agent onto the upper part of the oil screen, enabling rapid removal of oil stains.

[0016] Furthermore, the upper end of the storage tank is provided with a liquid injection port, which penetrates the upper end of the outer shell, and a movable plug is movably installed inside the liquid injection port. This structural design facilitates the addition of degreasing agent into the storage tank through the liquid injection port.

[0017] Furthermore, the oil guide plate and the bent receiving plate are coated with an oleophobic layer on the side closest to the oil mesh assembly. This structural design, with the oleophobic layer, allows the oil on the oil guide plate and the bent receiving plate to flow downwards more smoothly.

[0018] The utility model adopting the above technical solution has the following advantages:

[0019] 1. This utility model allows for adjustment of the rotation angle of the oil filter via an adjustment mechanism. When the range hood stops working, the adjustment structure can control the tilt angle of the oil filter assembly relative to the horizontal plane to increase, causing the oil on the oil filter to flow downwards more quickly under the action of gravity, and then be collected by the oil collection assembly.

[0020] 2. In this utility model, the winding roller is driven by a drive motor, and the oil screen assembly can be rotated inside the outer shell by pulling a rope, so that it is tilted at different angles. When the range hood stops working, the tilt angle of the oil screen assembly relative to the horizontal plane is increased, which allows the oil on the oil screen to flow downward more quickly.

[0021] 3. This utility model uses a power supply module to turn on when the range hood stops working, and energizes the heating wire for a period of time, which raises the temperature of the oil filter and allows the oil to flow smoothly downwards. Attached Figure Description

[0022] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0023] Figure 1 This is a schematic diagram of the structure of a range hood that is easy to clean according to the present invention;

[0024] Figure 2This is a schematic diagram of the internal structure of a range hood that is easy to clean according to this utility model;

[0025] Figure 3 This is a schematic diagram of the oil filter assembly, fixing strip, and oil collection assembly in a range hood that is easy to clean according to this utility model;

[0026] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0027] Figure 5 This is a schematic diagram of the spray mechanism in a range hood that is easy to clean according to this utility model;

[0028] Figure 6 This is a schematic diagram of the oil filter and rotating frame separated in a range hood that is easy to clean according to this utility model;

[0029] Figure 7 This is a schematic diagram of the oil filter assembly in a range hood that is easy to clean, according to this utility model.

[0030] The symbols for the main components are explained below:

[0031] 1. Outer shell; 11. Fixing strip; 12. Limiting strip;

[0032] 2. Fan;

[0033] 3. Oil mesh assembly;

[0034] 31. Rotating frame; 311. Slot;

[0035] 312. Locking mechanism; 3121. Arc-shaped adapter; 3122. Rotating locking block;

[0036] 32. Oil mesh; 321. Clamping teeth;

[0037] 4. Oil collection assembly;

[0038] 41. Oil guide plate; 411. Bending support plate; 412. Buckle;

[0039] 42. Oil collection tank;

[0040] 5. Fixing frame; 51. Drive motor; 52. Take-up roller; 53. Pull rope;

[0041] 6. Strip spray pipe; 61. Liquid storage tank; 62. Delivery pipe; 63. Injection port; 64. Movable plug. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0044] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0045] like Figure 1 , Figure 2 As shown, this utility model provides an easy-to-clean range hood, which includes a range hood body. The range hood body includes a shell 1, a fan 2, an oil filter assembly 3, and an oil collection assembly 4. The fan 2 and the oil filter assembly 3 are both disposed inside the shell 1. The oil collection assembly 4 is located at the lower part of the shell 1. The oil filter assembly 3 is rotatably installed inside the shell 1. The shell 1 is also provided with an adjustment mechanism that can adjust the rotation angle of the oil filter assembly 3.

[0046] The rotation angle of the oil filter assembly 3 can be adjusted by the adjustment mechanism. When the range hood stops working, the adjustment structure can control the tilt angle of the oil filter assembly 3 relative to the horizontal plane to increase, so that the oil on the oil filter assembly 3 flows downward more quickly under the action of gravity and is collected by the oil collection assembly 4.

[0047] like Figure 3 , Figure 4As shown, the adjustment mechanism includes a fixed frame 5, a drive motor 51, a take-up roller 52, and a pull rope 53. The fixed frame 5 is fixedly installed on the top of the inner wall of the outer casing 1 by bolts. The drive motor 51 is fixedly installed on the fixed frame 5, and the output shaft of the drive motor 51 passes through the fixed frame 5. The take-up roller 52 is fixedly installed at one end of the drive motor 51 that passes through the fixed frame 5. One end of the pull rope 53 is fixedly connected to the take-up roller 52, and the other end is connected to the oil filter assembly 3. The adjustment mechanism is connected to the control system of the range hood. When the range hood is working, the adjustment mechanism places the oil filter assembly 3 to the state with the smallest tilt angle relative to the horizontal plane. When the range hood stops working, it retracts the oil filter assembly 3 to the state with the larger tilt angle relative to the horizontal plane.

[0048] The oil filter assembly 3 includes a rotating frame 31 and an oil filter 32. The lower end of the rotating frame 31 is provided with a rotating shaft. The rotating frame 31 is rotatably installed in the outer casing 1 through the rotating shaft. The upper end of the rotating frame 31 is fixedly connected to the end of the pull rope 53. The oil filter 32 is located inside the rotating frame 31. The oil filter 32 is made of double-layer alloy material, and a heating wire is provided in its interlayer. The heating wire can be electrically connected to the power supply module. The power supply module is provided with a timer and a controller. The controller controls the power supply module to supply power to the heating wire when the range hood stops working. The timer controls the power supply time of the power supply module. After the heating wire works for a period of time, the overall temperature of the oil filter 32 rises and then stops.

[0049] like Figure 6 , Figure 7 As shown, the lower end of the oil mesh 32 is provided with a locking tooth 321, and the rotating frame 31 is provided with an installation groove for placing the oil mesh 32. The installation groove is provided with a locking groove 311 that matches the locking tooth 321. The rotating frame 31 is provided with a locking mechanism 312 that can lock the oil mesh 32 in the rotating frame 31. The locking mechanism 312 includes an arc-shaped adapter seat 3121 and a rotating locking block 3122. The rotating locking block 3122 is rotatably installed in the arc-shaped adapter seat 3121. When the rotating locking block 3122 rotates to the installation groove of the rotating frame 31, it can cooperate with the locking groove 311 to lock the oil mesh 32. When the rotating locking block 3122 is pushed to the outside of the rotating frame 31, the upper part of the oil mesh 32 is unlocked and can be taken out from the installation groove, which facilitates the disassembly and assembly of the oil mesh 32.

[0050] A fixing strip 11 is fixedly installed on the upper part of the inner wall of the outer shell 1 near the front. A limiting strip 12 is fixedly installed at the end of the fixing strip 11. When the oil mesh assembly 3 is at its smallest tilt angle relative to the horizontal plane, the rotating frame 31 overlaps the limiting strip 12. The limiting strip 12 is a magnetic strip, which has a magnetic adsorption effect on the rotating frame 31, which can ensure the stability of the rotating frame 31 and the oil mesh 32 during use.

[0051] The oil collection assembly 4 includes an oil guide plate 41 and an oil collection trough 42. The oil guide plate 41 is located on the front of the outer shell 1 near the lower end. A bent receiving plate 411 is fixedly installed on the oil guide plate 41. The oil guide plate 41 and the bent receiving plate 411 are coated with an oleophobic layer on the side near the oil mesh assembly 3. The bent receiving plate 411 is close to the lower end of the rotating frame 31. The oil collection trough 42 is movably snapped into the lower end of the outer shell 1. The lower end of the oil guide plate 41 extends into the oil collection trough 42. The bottom of the outer shell 1 has multiple oil leakage holes. Two buckles 412 are symmetrically fixedly installed on the oil guide plate 41. The outer shell 1 has a snap-fit ​​groove that matches the two buckles 412. The buckles 412 and the snap-fit ​​groove facilitate the separation of the oil guide plate 41 from the outer shell 1, making it easy to clean the oil guide plate 41.

[0052] like Figure 2 , Figure 5 As shown, a spraying mechanism is provided above the oil filter assembly 3. The spraying mechanism is also connected to the control system of the range hood. When the range hood stops working, the control liquid pump works for a period of time to spray the degreaser onto the upper part of the oil filter 32. The spraying mechanism includes a strip spray pipe 6, a storage tank 61 for storing the degreaser, a delivery pipe 62, and a liquid pump installed at the bottom of the inner wall of the storage tank 61. The strip spray pipe 6 is fixedly installed on the upper end of the inner wall of the outer shell 1. The spraying direction of the strip spray pipe 6 is towards the upper part of the oil filter 32. The storage tank 61 is fixedly installed on the upper end of the inner wall of the outer shell 1. One end of the delivery pipe 62 passes through the bottom of the storage tank 61 and is fixedly connected to the output port of the liquid pump. The other end is fixedly connected to the input port of the strip spray pipe 6. The upper end of the storage tank 61 is provided with a liquid injection port 63. The liquid injection port 63 passes through the upper end of the outer shell 1, and a movable plug 64 is movably installed inside the liquid injection port 63.

[0053] The method of using this utility model is as follows:

[0054] When in use, the oil filter assembly 3 is in the state of minimum tilt angle relative to the horizontal plane, the rotating frame 31 overlaps the limit strip 12, the fan 2 works, and the oil fumes can enter the range hood, and the oil filter 32 can intercept the oil droplets in the passing oil fumes.

[0055] When the range hood stops working, the power supply module supplies power to the heating wire, which works for a period of time, raising the temperature of the oil mesh 32 and accelerating the downward flow of oil. While the heating wire is working, the adjustment mechanism works, the drive motor 51 works, and the output shaft drives the winding roller 52 to rotate, winding up the pull rope 53. The pull rope 53 pulls the rotating frame 31 and the oil mesh 32 to rotate, increasing the tilt angle of the oil mesh assembly 3 relative to the horizontal plane, further increasing the downward flow speed of oil on the oil mesh 32.

[0056] When the tilt angle of the oil screen 32 relative to the horizontal plane is at its maximum, the liquid pump works and the degreasing agent can be sprayed onto the upper part of the oil screen 32 through the strip spray pipe 6. The degreasing agent can decompose the grease on the oil screen 32, and the degreasing agent will continue to flow downward under the action of gravity, so that the oil stains on the oil screen 32 can be quickly removed.

[0057] As the oil drips down the oil mesh 32, the bent receiving plate 411 and the oil guide plate 41 guide the oil, causing it to continue flowing downwards until it is collected by the oil collection tank 42.

[0058] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0061] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0062] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A range hood that is easy to clean, comprising a range hood body, the range hood body comprising a housing (1), a fan (2), an oil filter assembly (3), and an oil collection assembly (4), wherein the fan (2) and the oil filter assembly (3) are both disposed inside the housing (1), and the oil collection assembly (4) is located at the lower part of the housing (1), characterized in that: The oil mesh assembly (3) is rotatably installed inside the housing (1), and the housing (1) is also provided with an adjustment mechanism that can adjust the rotation angle of the oil mesh assembly (3); The adjustment mechanism includes a fixed frame (5), a drive motor (51), a take-up roller (52), and a pull rope (53). The fixed frame (5) is fixedly installed on the top of the inner wall of the outer shell (1) by bolts. The drive motor (51) is fixedly installed on the fixed frame (5). The output shaft of the drive motor (51) passes through the fixed frame (5). The take-up roller (52) is fixedly installed at one end of the drive motor (51) that passes through the fixed frame (5). One end of the pull rope (53) is fixedly connected to the take-up roller (52), and the other end is connected to the oil mesh assembly (3).

2. The easy-to-clean range hood according to claim 1, characterized in that: The oil mesh assembly (3) includes a rotating frame (31) and an oil mesh (32). The lower end of the rotating frame (31) is provided with a rotating shaft. The rotating frame (31) is rotatably installed in the outer shell (1) through the rotating shaft. The upper end of the rotating frame (31) is fixedly connected to the end of the pull rope (53). The oil mesh (32) is located inside the rotating frame (31). The oil mesh (32) is a double-layer alloy structure with a sandwich layer. A heating wire is provided in the sandwich layer. The heating wire is electrically connected to a power supply module.

3. The easy-to-clean range hood according to claim 2, characterized in that: The lower end of the oil mesh (32) is provided with a locking tooth (321), the rotating frame (31) is provided with an installation groove for placing the oil mesh (32), the installation groove is provided with a locking groove (311) that matches the locking tooth (321), and the rotating frame (31) is provided with a locking mechanism (312) that can lock the oil mesh (32) in the rotating frame (31).

4. The easy-to-clean range hood according to claim 3, characterized in that: The locking mechanism (312) includes an arc-shaped adapter (3121) and a rotating block (3122), wherein the rotating block (3122) is rotatably mounted in the arc-shaped adapter (3121).

5. The easy-to-clean range hood according to claim 2, characterized in that: A fixing strip (11) is fixedly installed on the upper end of the inner wall of the outer shell (1) near the front. A limiting strip (12) is fixedly installed at the end of the fixing strip (11). When the oil mesh assembly (3) has the smallest tilt angle relative to the horizontal plane, the rotating frame (31) overlaps on the limiting strip (12).

6. The easy-to-clean range hood according to claim 2, characterized in that: The oil collection assembly (4) includes an oil guide plate (41) and an oil collection trough (42). The oil guide plate (41) is located on the front of the outer shell (1) near the lower end. A bent support plate (411) is fixedly installed on the oil guide plate (41). The bent support plate (411) is close to the lower end of the rotating frame (31). The oil collection trough (42) is movably engaged with the lower end of the outer shell (1). The lower end of the oil guide plate (41) extends into the oil collection trough (42). The bottom of the outer shell (1) is provided with multiple oil leakage holes.

7. The easy-to-clean range hood according to claim 6, characterized in that: Two buckles (412) are symmetrically fixed on the oil guide plate (41), and the outer shell (1) has a snap-fit ​​groove that matches the two buckles (412).

8. The easy-to-clean range hood according to any one of claims 2 to 7, characterized in that: A spraying mechanism is provided above the oil mesh assembly (3). The spraying mechanism includes a strip spray pipe (6), a storage tank (61) for storing degreasing agent, a delivery pipe (62), and a liquid pump installed at the bottom of the inner wall of the storage tank (61). The strip spray pipe (6) is fixedly installed on the upper end of the inner wall of the outer shell (1). The spraying direction of the strip spray pipe (6) is towards the upper part of the oil mesh (32). The storage tank (61) is fixedly installed on the upper end of the inner wall of the outer shell (1). One end of the delivery pipe (62) passes through the bottom of the storage tank (61) and is fixedly connected to the output port of the liquid pump. The other end is fixedly connected to the input port of the strip spray pipe (6).

9. The easy-to-clean range hood according to claim 8, characterized in that: The upper end of the liquid storage tank (61) is provided with a liquid injection port (63), which penetrates the upper end of the outer shell (1), and a movable plug (64) is movably installed inside the liquid injection port (63).

10. The easy-to-clean range hood according to claim 6, characterized in that: The oil guide plate (41) and the bent receiving plate (411) are coated with an oleophobic layer on the side near the oil mesh assembly (3).

Images