Oil smoke treatment device

Abstract

The utility model relates to the technical field of household appliances, in particular to an oil smoke treatment device. The cooking fume treatment device comprises a fume collecting hood, an air deflector assembly and a shielding piece, an opening is formed in the fume collecting hood, the air deflector assembly comprises an air deflector and a connecting rod arranged on the air deflector, the connecting rod penetrates through the opening, the shielding piece is arranged on the connecting rod, and when the air deflector is in an open state, the shielding piece can shield at least part of the opening. The shielding piece can prevent fingers of a user from stretching into the opening, the hands of the user can be prevented from being pinched, the safe use effect of the oil smoke treatment device is guaranteed, and the personal safety of the user can be effectively guaranteed. In addition, it can be guaranteed that external oil fume enters from the air inlet in a good and concentrated mode, and the oil fume treatment device always absorbs the oil fume well.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to an oil fume treatment device. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. Their main function is to remove cooking fumes during cooking, thereby maintaining a good kitchen environment.

[0003] like Figures 1-3 As shown, the current range hood includes a main unit box 200, a smoke collection hood 300, and an air guide plate assembly 400. The main unit box 200 is connected to the smoke collection hood 300, and the air guide plate assembly 400 can open or close the air inlet 3110 of the smoke collection hood 300.

[0004] like Figures 1-3 As shown, the air guide plate assembly 400 includes an air guide plate 410 and a connecting rod 420 connected to each other, and the connecting rod 420 is rotatably connected to the smoke hood 300. Figure 2 and Figure 3 As shown, the smoke hood 300 has an opening 3120 through which the connecting rod 420 passes, thus avoiding interference between the connecting rod 420 and the smoke hood 300. Since the connecting rod 420 is usually a curved rod and its movement trajectory is an arc, the cross-sectional area of ​​the opening 3120 is usually set to be larger than the cross-sectional area of ​​the connecting rod 420 to prevent the connecting rod 420 from colliding with the smoke hood 300 during movement.

[0005] like Figure 2 and Figure 3 As shown, when the air guide plate assembly 400 is in the open air inlet 3110 state, there is a large area in the opening 3120 that is not filled by the connecting rod 420. If the user puts his / her finger into the unfilled area, the user's hand will be pinched.

[0006] Therefore, there is an urgent need to design a new fume treatment device to improve the problem of users' hands being easily pinched. Utility Model Content

[0007] The purpose of this invention is to provide an operating component that can prevent the user's hand from being pinched and ensure the user's personal safety.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] An oil fume treatment device, comprising:

[0010] The smoke hood has an opening;

[0011] An air guide plate assembly includes an air guide plate and a connecting rod disposed thereon, the connecting rod passing through the opening; and

[0012] A shielding element is disposed on the connecting rod, which can block at least part of the opening when the air guide plate is in the open state.

[0013] As an alternative, the shielding member only blocks at least part of the opening when the air guide plate is in the open state.

[0014] As an optional solution, when the air guide plate is in the closed state, the shielding member is spaced apart from, partially in contact with, or elastically abutting against the top plate of the smoke hood.

[0015] As an alternative, the blocking member is rotatably connected to the connecting rod; or

[0016] The shielding component is fixedly connected to the connecting rod, and the shielding component is elastically deformable.

[0017] As an alternative, one of the connecting rod and the blocking member includes a first limiting portion, which cooperates with the other to limit the extreme position of the blocking member relative to the connecting rod; and / or

[0018] The fume treatment device also includes an elastic element, and the shielding element is connected to the connecting rod through the elastic element.

[0019] As an optional embodiment, the shielding component includes a shielding body and a connecting body connected together, the connecting body being rotatably connected to the connecting rod; and / or

[0020] The shielding component includes a shielding body and a limiting body connected together. When the air guide plate is in the open state, the first limiting part abuts against the limiting body.

[0021] As an optional solution, the connector is configured as two entities, located on opposite sides of the connecting rod in the width direction; and / or

[0022] The limiting body includes a connecting portion and a second limiting portion. The connecting portion is connected to the shield and extends outward from the smoke hood. The second limiting portion is fixedly connected to the end of the connecting portion away from the shield; and / or

[0023] The shield includes a connector and a first flap located on its outer periphery. When the air guide plate is in the open state, the connector is located in the opening, and the first flap abuts against the inner side of the smoke hood; and / or

[0024] The shielding component is integrally molded.

[0025] As an optional embodiment, the insertion part includes a side plate and a bottom plate. The side plate extends from the first flap towards the outside of the smoke hood. The bottom plate is connected to the end of the side plate away from the first flap. The side plate and the bottom plate together form an accommodating space, in which a portion of the connecting rod can be accommodated; and / or

[0026] The smoke collection hood includes a smoke collection hood body and a second flap. The smoke collection hood body has the opening. The second flap extends from the opening toward the inside of the smoke collection hood body. When the air guide plate is in the open state, the free ends of the first flap and the second flap abut against each other.

[0027] As an alternative, the shielding member always blocks the opening.

[0028] As an optional solution, the shielding component is an elastic sleeve, the connecting rod passes through the elastic sleeve, one end of the elastic sleeve is fixedly connected to the connecting rod, and the other end of the elastic sleeve is fixedly connected to the smoke collection hood.

[0029] The beneficial effects of this utility model are:

[0030] The oil fume treatment device provided by this utility model includes a fume hood, an air guide plate assembly, and a shielding component. The fume hood has an opening, the air guide plate assembly includes an air guide plate and a connecting rod disposed thereon, the connecting rod passes through the opening, and the shielding component is disposed on the connecting rod. When the air guide plate is in the open state, the shielding component can block at least part of the opening.

[0031] The shielding component prevents fingers from being inserted into the opening, avoiding hand injuries and ensuring the safe operation of the fume treatment device, thus effectively protecting the user's safety. Furthermore, it ensures that external fumes enter effectively and concentratedly through the air inlet, achieving consistently good absorption of fumes by the fume treatment device. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the oil fume treatment device provided in Embodiment 1 of this utility model;

[0033] Figure 2 This is a schematic diagram of the structure of an existing oil fume treatment device;

[0034] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0035] Figure 4 This is a schematic diagram of the oil fume treatment device provided in Embodiment 1 of this utility model;

[0036] Figure 5 yes Figure 4A magnified view of a section at point B in the middle;

[0037] Figure 6 This is a cross-sectional view of the air guide plate of the fume treatment device provided in Embodiment 1 of this utility model opened to its maximum extent;

[0038] Figure 7 yes Figure 6 A magnified view of a section at point C;

[0039] Figure 8 This is a partial enlarged view of the fume treatment device provided in Embodiment 1 of this utility model;

[0040] Figure 9 This is a cross-sectional view of the fume treatment device provided in Embodiment 1 of this utility model with the air guide plate in the closed state;

[0041] Figure 10 yes Figure 9 A magnified view of a section at point E in the middle;

[0042] Figure 11 This is a schematic diagram of the structure of the shielding component provided in Embodiment 1 of this utility model;

[0043] Figure 12 This is a partial enlarged view of the fume treatment device provided in Embodiment 1 of this utility model;

[0044] Figure 13 This is a partial enlarged view of the fume treatment device provided in Embodiment 2 of this utility model.

[0045] In the picture:

[0046] 1000. Fume treatment device;

[0047] 100, shielding component; 200, main unit chassis; 210, chassis body; 220, fan; 300, smoke hood; 310, smoke hood body; 3110, air inlet; 3120, opening; 3130, top plate; 320, second flap; 400, air guide plate assembly; 410, air guide plate; 420, connecting rod; 4210, connecting rod body; 4220, first limiting part;

[0048] 10. Shielding body; 11. Insertion part; 111. Side plate; 112. Base plate; 113. Accommodation space; 12. First flap;

[0049] 20. Connector;

[0050] 30. Limiting body; 31. Connecting part; 32. Second limiting part. Detailed Implementation

[0051] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the drawings, not all of them.

[0052] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of the embodiments disclosed herein, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0055] Example 1

[0056] This disclosure provides an oil fume treatment device 1000, which can be any type of device with oil fume treatment function, such as a top-mounted range hood, a side-suction range hood, a top-suction range hood, or a near-suction range hood. All types of devices with oil fume treatment function are within the protection scope of this disclosure. This disclosure uses a near-suction range hood as an example to describe the structure of the oil fume treatment device 1000.

[0057] like Figures 1-4As shown in the figure, this disclosure presents an oil fume treatment device 1000, which includes a main unit 200, a fume collection hood 300, and an air guide plate assembly 400. The main unit 200 includes a main body 210, which is connected to the fume collection hood 300. A fan 220 can be installed in the main body 210 or the fume collection hood 300. The fume collection hood 300 has an air inlet 3110. The air guide plate assembly 400 can be positioned to block the air inlet 3110 in a first position and to open the air inlet 3110 in a second position. The second position of 110 is switched. When the air guide plate assembly 400 is in the first position, the air guide plate assembly 400 can achieve a good sealing effect on the air inlet 3110, which can prevent the oil fume odor in the fume collection hood 300 from being transmitted into the room. When the air guide plate assembly 400 is in the second position, the fan 220 works to create a negative pressure inside the main body 210 of the casing. The oil fume outside the oil fume treatment device 1000 can enter the fume collection hood 300 and the main body casing 200 through the air inlet 3110 and be discharged to the outside.

[0058] An air outlet is provided on the main body 210 of the chassis. After the oil fumes are filtered by the oil fume treatment device 1000, they are formed into relatively clean gas, which is discharged from the air outlet. The fume collection hood 300 can effectively collect and concentrate the oil fumes, so that a large amount of external oil fumes can enter the main chassis 200 at the rear.

[0059] like Figures 1-3 As shown, the air guide plate assembly 400 includes an air guide plate 410 and a connecting rod 420 connected to each other, and the connecting rod 420 is rotatably connected to the smoke hood 300. Figure 2 and Figure 3 As shown, the smoke hood 300 has an opening 3120 through which the connecting rod 420 passes, thus avoiding interference between the connecting rod 420 and the smoke hood 300. Since the connecting rod 420 is usually a curved rod and its movement trajectory is an arc, the cross-sectional area of ​​the opening 3120 is usually set to be larger than the cross-sectional area of ​​the connecting rod 420 to prevent the connecting rod 420 from colliding with the smoke hood 300 during movement.

[0060] like Figure 2 and Figure 3 As shown, when the air guide plate assembly 400 is in the open air inlet 3110 state, there is a large area in the opening 3120 that is not filled by the connecting rod 420. If the user puts his / her finger into the unfilled area, the user's hand will be pinched.

[0061] To solve the above problems, such as Figure 4 and Figure 5As shown, the fume treatment device 1000 also includes a shield 100, which is disposed on the connecting rod 420. When the air guide plate 410 is in the open state, the shield 100 can block at least part of the opening 3120, preventing fingers from being inserted into the opening 3120 and avoiding injury to the user's hand. This ensures the safe use of the fume treatment device 1000 and effectively protects the user's personal safety. Furthermore, it ensures that external fumes can enter well and in a concentrated manner from the air inlet 3110, enabling the fume treatment device 1000 to consistently absorb fumes effectively.

[0062] It should be noted that the blocking component 100 can be directly or indirectly connected to the connecting rod 420.

[0063] In an alternative embodiment, such as Figures 4-7 As shown, the shielding member 100 only blocks at least part of the opening 3120 when the air guide plate 410 is in the open state. When the air guide plate 410 is in other states, the shielding member 100 can avoid the opening 3120, thus preventing the shielding member 100 from interfering with the moving connecting rod 420, ensuring the smooth flipping movement of the air guide plate assembly 400, preventing the air guide plate assembly 400 from getting stuck during the flipping movement, and ensuring the normal operation of the fume treatment device 1000.

[0064] In an alternative embodiment, such as Figures 4-8 As shown, the shielding component 100 is located inside the fume hood 300, which can achieve a good concealing and shielding effect on the shielding component 1000, ensuring that the fume treatment device 1000 always has a good external aesthetic appearance.

[0065] like Figure 6 and Figure 9 As shown, in order to achieve a thinner and lighter design for the fume treatment device 1000, the internal space of the fume hood 300 is relatively small. Therefore, when the air guide plate 410 is in the closed state, the shielding member 100 may interfere with the top plate 3130 of the fume hood 300, causing damage to the shielding member 100 or the connecting rod 420, or causing deformation of the top plate 3130. In severe cases, it will affect the normal rotation of the air guide plate assembly 400, and will also affect the normal and effective shielding of the opening 3120 by the shielding member 100.

[0066] In an alternative embodiment, such as Figure 9 and Figure 10As shown, the structure of the fume treatment device 100 can be configured such that when the air guide plate 410 is in the closed state, the shielding member 100 is in a loose contact with the top plate 3130 of the fume hood 300, which can prevent the shielding member 100 from interfering with the top plate 3130 of the fume hood 300, prevent damage to the shielding member 100 or the connecting rod 420, and prevent the top plate 3130 from deforming due to the hard compression of the shielding member 100, ensuring the normal rotation of the air guide plate assembly 400, and ensuring that the shielding member 100 subsequently provides normal and effective shielding of the opening 3120.

[0067] It should be noted that "virtual contact" refers to a situation where two objects are in physical contact, but there is no interaction force at the point of contact; it can be understood as non-force-driven contact.

[0068] For example, the shield 100 and the connecting rod 420 can be rotatably connected. During the closing process of the air guide plate 410, if the shield 100 interferes with the top plate 3130 of the smoke hood 300, the shield 100 will rotate relative to the connecting rod 420 in a direction away from the top plate 3130 of the smoke hood 300, thereby achieving a virtual contact between the shield 100 and the top plate 3130 of the smoke hood 300. That is to say, although the shield 100 and the top plate 3130 of the smoke hood 300 are in contact, there is no interaction force between the shield 100 and the top plate 3130 of the smoke hood 300. The shield 100 will not deform due to the external force applied by the top plate 3130, and the top plate 3130 will not deform due to the hard compression of the shield 100. It should be noted that the rotation of the aforementioned shielding member 100 and connecting rod 420 can be damped rotation. That is, without sufficient external force, the relative position of the shielding member 100 and connecting rod 420 will not change. The damped rotation design can prevent damage to the shielding member 100 or connecting rod 420 caused by frequent rotation between them, and can effectively improve the service life of the shielding member 100 and connecting rod 420.

[0069] In an optional embodiment, the shield 100 and the connecting rod 420 can also rotate with low friction. That is, the shield 100 will rotate relative to the connecting rod 420 under its own weight. When the air guide plate 410 is in the closed state, the shield 100 will be spaced apart from the top plate 3130 of the smoke hood 300. This can also avoid hard collision between the shield 100 and the top plate 3130, avoid interference between the shield 100 and the top plate 3130, prevent damage to the shield 100 and the connecting rod 420, prevent deformation of the top plate 3130, ensure the normal rotation of the air guide plate assembly 400, and ensure that the shield 100 subsequently provides normal and effective shielding for the opening 3120.

[0070] In an alternative embodiment, the shield 100 and the connecting rod 420 can be connected by a rotary bearing (not shown), which can further improve the flexibility of the shield 100 to rotate relative to the connecting rod 420.

[0071] In an optional embodiment, the shield 100 can also be designed such that when the air guide plate 410 is in the closed state, the shield 100 and the top plate 3130 of the smoke hood 300 are spaced apart, thereby avoiding contact between the shield 100 and the top plate 3130 from the source, further avoiding damage to the shield 100 and improving the service life of the shield 100.

[0072] In an optional embodiment, the fume treatment device 1000 further includes an elastic element (not shown in the figure). The shield 100 and the connecting rod 420 can also be connected by the elastic element. The elastic element can further prevent the shield 100 from hard collision with the top plate 3130. When the shield 100 contacts the top plate 3130, the elastic element can achieve a good buffering effect on the shield 100, which can further prevent the shield 100 from hard collision, prevent the shield 100 from being deformed or damaged, and prevent the top plate 3130 from being deformed due to the hard compression of the shield 100, thereby improving the service life of the shield 100.

[0073] For example, the elastic element can be a torsion spring, one end of which is fixed to the blocking member 100, and the other end of which is fixedly connected to the connecting rod 420.

[0074] In an alternative embodiment, such as Figure 5 , Figure 7 and Figure 8 As shown, the connecting rod 420 includes a connecting rod body 4210 and a first limiting part 4220 connected to it. The shielding member 100 is rotatably connected to the connecting rod body 4210. The first limiting part 4220 cooperates with the shielding member 100 to limit the extreme position of the shielding member 100 relative to the connecting rod 420. When the air guide plate 410 is in the open state, the first limiting part 4220 can prevent the shielding member 100 from rotating into the smoke hood 300, further preventing the user from accidentally putting their hand into the opening 3120 and further preventing the user's hand from being pinched. The use of the fume treatment device 1000 is safer and can effectively ensure the personal safety of the user. It should be noted that the setting of the first limiting part 4220 is equivalent to a "double protection" structure, which can ensure the personal safety of the user to the greatest extent.

[0075] In an alternative embodiment, such as Figure 7As shown, when the air guide plate 410 is in the open state, the first limiting part 4220 and the smoke hood 300 together clamp the shield 100. The first limiting part 4220 can firmly abut the shield 100 against the smoke hood 300, so as to achieve a good sealing effect of the shield 100 on the opening 3120, avoid gaps between the shield 100 and the smoke hood 300, and prevent the user from inserting his fingers into the opening 3120 through the gap.

[0076] In an alternative embodiment, such as Figure 5 , Figure 8 and Figure 11 As shown, the shielding member 100 includes a shielding body 10 and a connecting body 20 connected together. The shielding member 100 can effectively shield and block the opening 3120. In addition, the connecting body 20 is rotatably connected to the connecting rod 420, and the connecting rod 420 can achieve a good rotatable connection between the shielding member 100 and the connecting rod 420.

[0077] In an alternative embodiment, such as Figure 5 , Figure 8 and Figure 11 As shown, two connectors 20 are provided, located on either side of the connecting rod 420 in the width direction. The two connectors 20 ensure a stable connection between the connectors 20 and the connecting rod 420, preventing any wobbling of the connectors 20 relative to the connecting rod 420 and guaranteeing accurate sealing of the opening 3120 by the blocking component 100. This also further improves the strength and hardness of the blocking component 100, ensuring a longer service life and better blocking and sealing of the opening 3120.

[0078] In an alternative embodiment, such as Figure 5 , Figure 8 and Figure 11 As shown, the shielding member 100 also includes a limiting body 30. The shielding body 10 is connected to the limiting body 30. When the air guide plate 410 is in the open state, the first limiting part 4220 abuts against the limiting body 30, which can effectively limit the extreme positions of the shielding member 100 and the connecting rod 420.

[0079] Specifically, such as Figure 11 and Figure 12As shown, the limiting body 30 includes a connecting portion 31 and a second limiting portion 32. The connecting portion 31 is connected to the shielding body 10 and extends outward from the smoke hood 300. The second limiting portion 32 is fixedly connected to the end of the connecting portion 31 away from the shielding body 10. Since the connecting portion 31 and the shielding body 10 are formed by bending to produce plastic deformation, and the second limiting portion 32 and the connecting portion 31 are formed by bending to produce plastic deformation, the plastic deformation brings about work hardening. Work hardening can effectively increase the strength and hardness of the limiting body 30, and can also enhance the stability of the connection between the limiting body 30 and the shielding body 10, thus preventing the shielding part 100 from deforming during use.

[0080] In an alternative embodiment, such as Figure 7 and Figure 8 As shown, the shield 10 includes a plug-in part 11 and a first flap 12 located on its outer periphery. When the air guide plate 410 is in the open state, the plug-in part 11 is located in the opening 3120, and the first flap 12 abuts against the inner side of the smoke collection hood 300, which can achieve a good sealing effect of the shield 10 on the opening 3120.

[0081] In an alternative embodiment, such as Figure 7 As shown, the smoke hood 300 includes a smoke hood body 310 and a second flap 320. The smoke hood body 310 has an opening 3120. The second flap 320 extends from the opening 3120 into the inside of the smoke hood body 310. When the air guide plate 410 is in the open state, the free ends of the first flap 12 and the second flap 320 abut against each other. The free ends of the first flap 12 and the second flap 320 abut against each other linearly, which can achieve a good sealing effect of the first flap 12 on the opening 3120.

[0082] In an alternative embodiment, such as Figure 11 and Figure 12 As shown, the insertion part 11 includes a side plate 111 and a bottom plate 112. The side plate 111 extends from the first flap 12 to the outside of the smoke hood 300. The bottom plate 112 is connected to the end of the side plate 111 away from the first flap 12. The side plate 111 and the bottom plate 112 together form an accommodating space 113, in which part of the connecting rod 420 can be accommodated. When the air guide plate assembly 400 is rotating, the accommodating space 113 can prevent the shielding member 100 from interfering with the connecting rod 420. In addition, the side plate 111 and the bottom plate 112 form a "convex bulge" shape, which can enhance the strength and rigidity of the shielding member 100, thereby achieving a stable support effect of the shielding body 10 on the connecting body 20 and the limiting body 30.

[0083] In an alternative embodiment, such as Figure 11As shown, the shielding component 100 includes a shielding body 10, a connecting body 20, and a limiting body 30. The shielding body 10 includes a side plate 111, a bottom plate 112, and a first flap 12. The limiting body 30 includes a connecting part 31 and a second limiting part 32. The side plate 111, the bottom plate 112, the first flap 12, the connecting body 20, the connecting part 31, and the second limiting part 32 are integrally formed by processes such as punching, bending, and stamping. The shielding component 100 has a simple overall structure, high strength, high hardness, and is easy to assemble.

[0084] Example 2

[0085] like Figure 13 As shown, this embodiment of the present disclosure provides an oil fume treatment device 1000. The structure of the oil fume treatment device 1000 is basically the same as that of the oil fume treatment device 1000 in Embodiment 1. The main difference between the two is that the shielding member 100 is fixedly connected to the connecting rod 420, and the shielding member 100 can be elastically deformed.

[0086] When the air guide plate assembly 400 is fully open, the shielding member 100 undergoes slight elastic deformation and completely covers the opening 3120, resulting in better shielding. When the air guide plate assembly 400 is closed, the shielding member 100 moves with the connecting rod 420 to the top plate 3130 of the smoke hood 300. Because the shielding member 100 has the ability to elastically deform, there will be no hard collision between the shielding member 100 and the top plate 3130 of the smoke hood 300. That is, the shielding member 100 will undergo a certain degree of elastic deformation under the pressure of the top plate 3130 of the smoke hood 300, extending the service life of both the shielding member 100 and the smoke hood 300. In this structure, the pivot connecting the shielding member 100 and the connecting rod 420 can be eliminated; the shielding member 100 can be fixedly connected to the connecting rod 420, simplifying the connection between the shielding member 100 and the connecting rod 420.

[0087] For example, the shield 100 may be made of a flexible material with elastic deformation capability, which may be, but is not limited to, rubber, plastic, etc.

[0088] In an alternative embodiment, the shielding member 100 can also be made of a rigid material, and the overall shape of the shielding member 100 is machined with an arc. The arc enables the elastic deformation of the shielding member 100, which can also achieve the above-mentioned effect. The corresponding rigid material can be spring steel, etc.

[0089] Example 3

[0090] This disclosure provides an oil fume treatment device 1000, the structure of which is basically the same as that of the oil fume treatment device 1000 in Embodiment 1. The main difference is that the shielding member 100 always blocks the opening 3120. Regardless of the state of the air guide plate assembly 400, the shielding member 100 can always prevent the user's fingers from being inserted into the opening 3120, thus better ensuring the user's personal safety.

[0091] In an optional embodiment, the shielding member 100 is an elastic sleeve (not shown in the figure), and the connecting rod 420 passes through the elastic sleeve. One end of the elastic sleeve is fixedly connected to the connecting rod 420, and the other end of the elastic sleeve is fixedly connected to the smoke hood 300. The elastic sleeve serves two purposes: firstly, it prevents the opening 3120 from being open; secondly, it prevents interference with the connecting rod 420. For example, the elastic sleeve can be a corrugated pipe, silicone tube, etc.

[0092] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An oil fume treatment device, characterized in that, include: The smoke hood (300) has an opening (3120); An air guide plate assembly (400) includes an air guide plate (410) and a connecting rod (420) disposed thereon, the connecting rod (420) passing through the opening (3120); and A shielding member (100) is disposed on the connecting rod (420). When the air guide plate (410) is in the open state, the shielding member (100) can block at least part of the opening (3120).

2. The fume treatment device according to claim 1, characterized in that, The shield (100) blocks at least a portion of the opening (3120) only when the air guide plate (410) is in the open state.

3. The fume treatment device according to claim 2, characterized in that, When the air guide plate (410) is in the closed state, the shield (100) and the top plate (3130) of the smoke hood (300) are spaced apart, in partial contact or elastically abutting.

4. The oil fume treatment device according to claim 3, characterized in that, The shielding member (100) is rotatably connected to the connecting rod (420); or The shielding member (100) is fixedly connected to the connecting rod (420), and the shielding member (100) is elastically deformable.

5. The fume treatment device according to claim 4, characterized in that, One of the connecting rod (420) and the blocking member (100) includes a first limiting portion (4220), which cooperates with the other to limit the extreme position of the blocking member (100) relative to the connecting rod (420); and / or The fume treatment device also includes an elastic element, and the shielding member (100) is connected to the connecting rod (420) through the elastic element.

6. The fume treatment device according to claim 5, characterized in that, The shielding member (100) includes a shielding body (10) and a connecting body (20) connected to each other, the connecting body (20) being rotatably connected to the connecting rod (420); and / or The shielding member (100) includes a shielding body (10) and a limiting body (30) connected to each other. When the air guide plate (410) is in the open state, the first limiting part (4220) abuts against the limiting body (30).

7. The fume treatment device according to claim 6, characterized in that, The connecting body (20) is configured as two, and the two connecting bodies (20) are located on both sides of the connecting rod (420) in the width direction; and / or The limiting body (30) includes a connecting part (31) and a second limiting part (32). The connecting part (31) is connected to the shield (10) and extends outward from the smoke hood (300). The second limiting part (32) is fixedly connected to the end of the connecting part (31) away from the shield (10); and / or The shield (10) includes a plug-in portion (11) and a first flap (12) located on its outer periphery. When the air guide plate (410) is in the open state, the plug-in portion (11) is located in the opening (3120), and the first flap (12) abuts against the inner side of the smoke hood (300); and / or The shielding component (100) is integrally formed.

8. The fume treatment device according to claim 7, characterized in that, The insertion part (11) includes a side plate (111) and a bottom plate (112). The side plate (111) extends from the first flap (12) to the outside of the smoke hood (300). The bottom plate (112) is connected to the end of the side plate (111) away from the first flap (12). The side plate (111) and the bottom plate (112) together form an accommodating space (113), in which a portion of the connecting rod (420) can be accommodated; and / or The smoke hood (300) includes a smoke hood body (310) and a second flap (320). The smoke hood body (310) has the opening (3120). The second flap (320) extends from the opening (3120) toward the inside of the smoke hood body (310). When the air guide plate (410) is in the open state, the first flap (12) abuts against the free end of the second flap (320).

9. The fume treatment device according to claim 1, characterized in that, The shielding member (100) always blocks the opening (3120).

10. The fume treatment device according to claim 9, characterized in that, The shielding component (100) is an elastic sleeve, and the connecting rod (420) passes through the elastic sleeve. One end of the elastic sleeve is fixedly connected to the connecting rod (420), and the other end of the elastic sleeve is fixedly connected to the smoke hood (300).

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