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 main case and a flow guide part, the flow guide part comprises a sleeve body and a spiral blade assembly, the sleeve body can guide gas in the main case out of the main case, the sleeve body is rotationally connected with the main case, and the spiral blade assembly is arranged on the inner wall of the sleeve body. Gas in the mainframe box is matched with the spiral blade assembly to enable the sleeve body to rotate, the gas in the mainframe box drives the flow guide part to rotate, thrust for pushing the gas in the mainframe box outwards can be formed in the sleeve body, and the sleeve body can well guide the gas in the mainframe box to flow out of the air outlet smoothly. And the situation that gas in the main case is blocked in the process of being exhausted from the air outlet is avoided, the smoke suction and exhaust effects of the oil smoke treatment device can be effectively improved, and the energy consumption of the whole oil smoke treatment device is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to an oil fume treatment device. Background Art

[0002] The range hood includes a main case and a fan system arranged therein. The main case is provided with an air outlet. The gas in the existing main case is prone to get stuck during the process of being discharged from the air outlet. Oil smoke is prone to accumulate in the main case and is difficult to be discharged. The smoke intake and exhaust effects of the range hood are relatively poor, resulting in high energy consumption of the entire range hood.

[0003] Therefore, it is urgent to design a new oil fume treatment device to improve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an oil fume treatment device, the sleeve body can better guide the gas in the main box to flow out smoothly from the air outlet, can effectively improve the smoke intake and exhaust effects of the range hood, and effectively reduce the energy consumption of the entire range hood.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A fume treatment device, comprising:

[0007] Main chassis; and

[0008] The flow guide comprises a sleeve and a spiral blade assembly. The sleeve can guide the gas in the main box to the outside of the main box, and the sleeve is rotatably connected to the main box. The spiral blade assembly is arranged on the inner wall of the sleeve.

[0009] As an optional solution, the oil fume treatment device further includes a bearing, the bearing including an inner ring and an outer ring which are rotatably connected, the outer ring is fixedly connected to the main housing, and the sleeve is sleeved on the inner side of the inner ring and fixedly connected to the inner ring; and / or

[0010] The sleeve body has an inner cavity, and the cross-sectional area of ​​the inner cavity of the sleeve body gradually decreases along the flow direction of the gas in the main box.

[0011] As an optional solution, the sleeve body has an air inlet and an air outlet, and the spiral blade assembly includes a spiral blade, and the spiral blade extends from the air inlet to the air outlet.

[0012] As an optional solution, the tangent direction L of the end of the spiral blade close to the air outlet t The axis L of the sleeve C are arranged at an angle α, wherein 0≤α≤10°; and / or

[0013] The spiral blades are arranged in plurality, and the plurality of spiral blades are arranged at equal intervals along the circumference of the sleeve.

[0014] As an optional scheme, the spiral blade assembly includes a first spiral blade and a second spiral blade, the first spiral blade is arranged in plurality, the plurality of first spiral blades are arranged at intervals along the circumference of the sleeve, a second spiral blade is arranged between two adjacent first spiral blades, the first spiral blade has a first guide surface, the second spiral blade has a second guide surface, and the area of ​​the first guide surface is greater than the area of ​​the second guide surface.

[0015] As an optional solution, the oil fume treatment device further includes:

[0016] A smoke collecting hood having a smoke collecting cavity;

[0017] The partition assembly is arranged in the main box inner cavity of the main box and divides the main box inner cavity into a first cavity and a second cavity. The partition assembly is provided with a first air inlet, the first cavity is connected to the smoke collecting cavity, and the guide member is arranged in the second cavity.

[0018] As an optional solution, the oil fume treatment device further includes:

[0019] Fan systems; and

[0020] The first baffle is provided with a second air inlet. The first baffle is arranged in the second cavity to divide the second cavity into a first silencer cavity and a receiving cavity. The guide member is arranged in the first silencer cavity and communicated with the second air inlet. The fan system is arranged in the receiving cavity.

[0021] As an optional solution, the oil fume treatment device further includes a second baffle, which is arranged in the accommodating cavity, and the second baffle divides the accommodating cavity into an accommodating cavity and a second silencing cavity, and the fan system is arranged in the accommodating cavity; and / or

[0022] The main chassis is provided with an air outlet, and the upper end of the sleeve is plugged into the air outlet; and / or

[0023] The first baffle includes a baffle body and a flange. The baffle body is provided with a second air inlet. The flange is formed by extending upward from the second air inlet. The lower end of the sleeve is located above the baffle body, and the flange is inserted into the lower end of the sleeve.

[0024] As an optional solution, the second baffle is an arc-shaped plate, and the arc-shaped plate is protruded in a direction away from the fan system.

[0025] As an optional solution, the main chassis includes a front panel, a first side panel, a rear panel and a second side panel which are connected in sequence, the first baffle is fixedly connected to the front panel, the first side panel, the rear panel and the second side panel respectively, the first baffle, the front panel, the first side panel, the rear panel and the second side panel together form four angular spaces, at least one angular space is provided with a guide arc plate, and the guide arc plate is protruding in the direction away from the fan system.

[0026] Beneficial effects of the utility model:

[0027] The oil fume treatment device provided by the utility model comprises a main box and a guide member, the guide member comprises a sleeve and a spiral blade assembly, the sleeve can guide the gas in the main box to the outside of the main box, and the sleeve is rotatably connected to the main box, and the spiral blade assembly is arranged on the inner wall of the sleeve.

[0028] The gas in the main box cooperates with the spiral blade assembly to make the sleeve rotate. The gas in the main box drives the guide piece to rotate. The inside of the sleeve can form a thrust to push the gas in the main box outward. The sleeve can better guide the gas in the main box to flow out smoothly from the air outlet, avoiding the gas in the main box from getting stuck during the discharge from the air outlet, which can effectively improve the smoking and exhaust effects of the oil fume treatment device and effectively reduce the energy consumption of the entire oil fume treatment device.

[0029] In addition, the guide member does not require additional external power. On the one hand, it can effectively reduce the energy consumption of the oil fume treatment device; on the other hand, the unpowered guide member in the driven state can be dynamically adjusted without constraints according to the direction of the gas in the main chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the oil fume treatment device provided by an embodiment of the utility model;

[0031] Figure 2 It is a sectional side view of the oil fume treatment device provided by an embodiment of the utility model;

[0032] Figure 3 is a cross-sectional view of a portion of the oil fume treatment device provided by an embodiment of the utility model;

[0033] Figure 4 is a cross-sectional view of a portion of the oil fume treatment device provided by an embodiment of the utility model;

[0034] Figure 5 It is a schematic diagram of the structure of the flow guide and the bearing provided in the embodiment of the utility model;

[0035] Figure 6 It is a cross-sectional view of a flow guide and a bearing provided in an embodiment of the utility model.

[0036] In the figure:

[0037] 100. Fume treatment device;

[0038] 10. guide member; 11. casing; 111. air inlet; 112. air outlet; 113. casing inner cavity; 12. spiral blade assembly; 121. first spiral blade; 1211. first guide surface; 122. second spiral blade; 1221. second guide surface;

[0039] 20. Main chassis; 21. Front panel; 22. First side panel; 23. Rear panel; 24. Second side panel; 25. Inner cavity of main chassis; 251. First cavity; 252. Second cavity; 2521. First muffler cavity; 2522. Accommodating cavity; 25221. Accommodating cavity; 25222. Second muffler cavity; 26. Upper end panel; 261. Air outlet;

[0040] 30. Fan system;

[0041] 40. Bearing; 41. Inner ring; 42. Outer ring; 43. Roller;

[0042] 50. Smoke collecting hood; 51. Smoke collecting chamber; 52. Third air inlet; 53. Oil net;

[0043] 60. baffle assembly; 61. first baffle; 611. first air inlet; 62. second baffle; 63. rectifier net;

[0044] 70, first baffle; 71, baffle body; 711, second air inlet; 72, flange;

[0045] 80. Second baffle;

[0046] 90. Guide arc piece. DETAILED DESCRIPTION

[0047] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and implementation methods. It is understood that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings, rather than all.

[0048] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] In the description of the embodiments of the present disclosure, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0051] like Figure 1 and Figure 2As shown, the embodiment of the present disclosure provides an oil fume treatment device 100, which can be a range hood, an integrated stove, an oil fume purification system, etc. The embodiment of the present disclosure takes the range hood as an example for explanation, and the range hood includes a housing (not numbered in the figure) and a fan system 30, the housing includes a main box 20 and a fume hood 50, the main box 20 is provided with a main box inner cavity 25 and an air outlet 261, the air outlet 261 is connected to the main box inner cavity 25, and the fume hood 50 is provided with a main box inner cavity 25 and an air outlet 261, and the air outlet 261 is connected to the main box inner cavity 25. 0 is provided with a smoke collecting chamber 51 and a third air inlet 52, the third air inlet 52 is connected to the smoke collecting chamber 51, the smoke collecting chamber 51 is connected to the main box inner cavity 25, the fan system 30 is provided in the main box inner cavity 25, when the fan system 30 is working, the oil smoke outside the smoke collecting hood 50 can pass through the third air inlet 52, the smoke collecting chamber 51 and the main box inner cavity 25 in sequence, the oil smoke is filtered at the fan system 30, and the filtered clean gas is discharged to the outside from the air outlet 261. Among them, the smoke collecting hood 50 can have a good smoke collection effect on the oil smoke, which is convenient for the range hood to absorb the oil smoke better.

[0052] like Figure 1 and Figure 2 As shown, the smoke hood 50 also includes an oil net 53, which covers the third air inlet 52. The oil net 53 can perform preliminary pre-separation on the incoming oil smoke. The setting of the oil net 53 can effectively improve the oil fume separation function and oil fume absorption effect of the range hood.

[0053] It should be noted that the range hood shown in the embodiment of the present disclosure may also be a ceiling-suction range hood, but the range hoods applicable to the fan system 30 are not limited to this form, and the range hood may also be other types such as a low-suction range hood, a side-suction range hood, etc.

[0054] In the existing range hoods, the gas in the main case 20 is prone to get stuck during the process of being discharged from the air outlet 261, and oil smoke is prone to accumulate in the main case 20 and is difficult to be discharged. The smoke intake and exhaust effects of the range hood are relatively poor, resulting in high energy consumption of the entire range hood.

[0055] To solve the above problems, Figure 2 and Figure 3As shown, the range hood further includes a guide member 10, which includes a sleeve 11 and a spiral blade assembly 12. The sleeve 11 can guide the gas in the main box 20 to the air outlet 261, so that the gas in the main box 20 is guided to the outside of the main box 20. The sleeve 11 is rotatably connected with the main box 20, and the spiral blade assembly 12 is arranged on the inner wall of the sleeve 11. The gas in the main box 20 cooperates with the spiral blade assembly 12 to rotate the sleeve 11, and the gas in the main box 20 drives the guide member 10 to rotate. The inside of the sleeve 11 can form a thrust to push the gas in the main box 20 outward. The sleeve 11 can better guide the gas in the main box 20 to flow out smoothly from the air outlet 261, and avoid the gas in the main box 20 from being stuck in the process of being discharged from the air outlet 261, which can effectively improve the smoke intake and exhaust effect of the range hood and effectively reduce the energy consumption of the entire range hood. In addition, the guide member 10 does not require additional external power. On the one hand, it can effectively reduce the energy consumption of the range hood; on the other hand, the unpowered guide member 10 in a driven state can be dynamically adjusted without constraints according to the direction of the gas in the main box 20.

[0056] like Figure 3 and Figure 4 As shown, the sleeve 11 extends along the flow direction of the gas in the main case 20, and the sleeve 11 has an air inlet 111 and an air outlet 112. The air inlet 111 and the air outlet 112 are arranged along the flow direction of the gas in the main case 20. The air inlet 111 is located downstream of the fan system 30, and the air outlet 112 is connected to the air outlet 261. The sleeve 11 can better guide the gas filtered by the fan system 30 into the air outlet 261, and the gas filtered by the fan system 30 can be discharged to the outside of the main case 20 relatively smoothly.

[0057] like Figure 3 and Figure 4 As shown, the sleeve 11 has an inner cavity 113, and the cross-sectional area of ​​the inner cavity 113 gradually decreases along the flow direction of the gas in the main box 20. When the gas in the main box 20 passes through the sleeve 11, the sleeve 11 can pressurize and accelerate the corresponding gas to a certain extent, which can enhance the smoke intake and exhaust effects of the range hood to a certain extent, and can reduce the energy consumption of the entire range hood to a certain extent.

[0058] like Figure 2 to Figure 4 As shown, the range hood further includes a bearing 40, which includes an inner ring 41 and an outer ring 42 that are rotatably connected, the outer ring 42 is fixedly connected to the main box 20, and the sleeve 11 is sleeved on the inner side of the inner ring 41 and fixedly connected to the inner ring 41. The bearing 40 can realize the flexible rotation of the air guide 10 relative to the main box 20, avoiding the problem of the air guide 10 being stuck when rotating relative to the main box 20. In addition, as Figure 4As shown, the bearing 40 further includes rollers 43 , which are sandwiched between the inner ring 41 and the outer ring 42 . The arrangement of the rollers 43 enables the inner ring 41 and the outer ring 42 to rotate flexibly.

[0059] like Figures 4 to 6 As shown, the spiral blade assembly 12 includes a spiral blade, wherein the spiral blade can be a first spiral blade 121 or a second spiral blade 122, and the spiral blade extends from the air inlet 111 to the air outlet 112. On the one hand, the gas in the main box 20 cooperates with the spiral blade, and the gas in the main box 20 can push the guide member 10 to realize the rotation of the guide member 10 relative to the main box 20; on the other hand, the spiral blade can guide the gas in the main box 20 to the air outlet 112, so that the gas in the main box 20 is smoothly discharged from the air outlet 261.

[0060] like Figure 6 As shown, the tangent direction L of the end of the spiral blade close to the air outlet 112 t and the axis L of the sleeve body 11 C It is set at an angle α, where 0≤α≤10°. The spiral blades can guide the gas in the main case 20 to flow out in a direction perpendicular to the air outlet 112, which can effectively reduce the flow resistance of the gas in the main case 20 and prevent the gas in the main case 20 from getting stuck during the discharge from the air outlet 261. It can effectively improve the smoke intake and exhaust effects of the range hood and effectively reduce the energy consumption of the entire range hood.

[0061] like Figures 4 to 6 As shown, there are multiple spiral blades, which are arranged at equal intervals along the circumference of the sleeve 11. A large number of spiral blades is beneficial to reducing the influence of the vortex in the sleeve 11 and ensuring that the gas in the main box 20 flows out of the air outlet 261 more smoothly.

[0062] like Figure 4 and Figure 5 As shown, the spiral blade assembly 12 includes a first spiral blade 121 and a second spiral blade 122. The first spiral blade 121 has a first guide surface 1211, and the second spiral blade 122 has a second guide surface 1221. The area of ​​the first guide surface 1211 is greater than the area of ​​the second guide surface 1221. The first spiral blade 121 is a mainstream blade, which mainly contributes to the gas in the main box 20 flowing out from the air outlet 261 more smoothly. The second spiral blade 122 is a diverter blade, which mainly cuts and diverts the vortex formed in the inner cavity 113 of the sleeve, which is conducive to reducing the influence of the vortex in the inner cavity 113 of the sleeve, and ensuring that the gas in the main box 20 flows out from the air outlet 261 more smoothly.

[0063] like Figure 4 and Figure 5As shown, a plurality of first spiral blades 121 are arranged at intervals along the circumference of the sleeve body 11, and a second spiral blade 122 is arranged between two adjacent first spiral blades 121. The interval arrangement of the first spiral blade 121 and the second spiral blade 122 can suppress the formation of vortex in the inner cavity 113 of the sleeve body, avoid the formation of a low-speed zone inside the inner cavity 113 of the sleeve body, reduce the friction loss between the gas in the main box 20 and the spiral blades, ensure that the gas in the main box 20 always has good kinetic energy, and facilitate the gas in the main box 20 to be discharged smoothly from the air outlet 261.

[0064] like Figure 2 As shown, the range hood further includes a partition assembly 60, which is disposed in the main case inner cavity 25, and the partition assembly 60 divides the main case inner cavity 25 into a first cavity 251 and a second cavity 252. A first air inlet 611 is provided on the partition assembly 60, and the first cavity 251 is connected to the smoke collecting cavity 51. The fan system 30 and the guide member 10 are disposed in the second cavity 252. The oil smoke outside the range hood can enter the second cavity 252 after passing through the third air inlet 52, the smoke collecting cavity 51, the first cavity 251 and the first air inlet 611 in sequence. The first cavity 251 and the smoke collecting cavity 51 can better isolate the vibration or noise generated by the fan system 30 from the external environment of the range hood, and can achieve a better silent use effect of the range hood. In addition, the first cavity 251 or the smoke collecting cavity 51 can be further filled with a sound-absorbing material to further reduce the noise generated during the use of the range hood.

[0065] like Figure 2 As shown, the partition assembly 60 includes a first partition 61 and a second partition 62 which are vertically arranged and connected. The first partition 61 is fixedly connected to the inner wall of the main box 20, and the second partition 62 is fixedly connected to the inner wall of the main box 20. The first partition 61 and the second partition 62 are arranged to divide the main box inner cavity 25 into a first cavity 251 and a second cavity 252. The structure is simple and easy to manufacture. Among them, the first air inlet 611 is arranged on the first partition 61, and the partition assembly 60 also includes a rectifying net 63, which covers the first air inlet 611 and can have a better rectifying effect on oil smoke.

[0066] like Figure 2 and Figure 3As shown, the range hood further includes a first baffle 70, the first baffle 70 is provided with a second air inlet 711, the first baffle 70 is arranged in the second cavity 252 to divide the second cavity 252 into a first silencing cavity 2521 and a containing cavity 2522, the air guide 10 is arranged in the first silencing cavity 2521, and the air guide 10 is communicated with the second air inlet 711, and the fan system 30 is arranged in the containing cavity 2522. By setting the first silencing cavity 2521, the vibration or noise generated by the fan system 30 can be well isolated from the external environment of the range hood, and a good silent use effect of the range hood can be achieved. In addition, the first silencing cavity 2521 can be further filled with silencing material to further reduce the noise generated during the use of the range hood.

[0067] like Figure 2 and Figure 4 As shown, the upper end of the sleeve 11 is inserted into the air outlet 261, and the air outlet 261 can provide a good rotation guide for the sleeve 11. Figure 2 and Figure 4 As shown, the first baffle 70 includes a baffle body 71 and a flange 72. A second air inlet 711 is provided on the baffle body 71. The flange 72 is formed by extending upward from the second air inlet 711. The lower end of the sleeve 11 is located above the baffle body 71. The baffle body 71 can limit the relative position of the sleeve 11 relative to the main chassis 20 in the up and down directions to prevent the sleeve 11 from falling off the main chassis 20. The flange 72 is inserted into the interior of the lower end of the sleeve 11, and the flange 72 can better guide the rotation of the sleeve 11.

[0068] like Figure 2 and Figure 3 As shown, the range hood further includes a second baffle 80, which is disposed in the accommodating cavity 2522. The second baffle 80 divides the accommodating cavity 2522 into an accommodating cavity 25221 and a second silencing cavity 25222. The fan system 30 is disposed in the accommodating cavity 25221. The second silencing cavity 25222 can better isolate the vibration or noise generated by the fan system 30 from the external environment of the range hood, thereby achieving a better silent use effect of the range hood. In addition, the second silencing cavity 25222 can be further filled with silencing material to further reduce the noise generated during the use of the range hood.

[0069] like Figure 2 and Figure 3 As shown, the second baffle plate 80 is an arc-shaped plate, which protrudes in the direction away from the fan system 30. The arc-shaped plate can guide the airflow to turn smoothly along the inner side of the arc-shaped plate, avoiding the impact noise caused by the airflow hitting the second baffle plate 80, thereby achieving a better silent use effect of the range hood.

[0070] like Figure 2 to Figure 4 As shown, the mainframe case 20 includes a front panel 21, a first side panel 22, a rear panel 23, and a second side panel 24 connected end to end in sequence, and the front panel 21, the first side panel 22, the rear panel 23, and the second side panel 24 form an upper opening. The mainframe case 20 also includes an upper end panel 26, and the upper end panel 26 blocks the upper opening. The first baffle 70 is fixedly connected to the front panel 21, the first side panel 22, the rear panel 23, and the second side panel 24, respectively. The first baffle 70, the front panel 21, the first side panel 22, the rear panel 23, and the second side panel 24 together form four angular spaces, and the angular spaces are prone to form vortices and cyclones, which cause the flow efficiency of the gas in the mainframe case 20 to be low and the noise to be large.

[0071] To solve the above problems, Figure 2 to Figure 4 As shown, a guide arc plate 90 is provided in at least one angular space. The guide arc plate 90 is protruded in the direction away from the fan system 30. The guide arc plate 90 can reduce the eddy current and cyclone in the angular space, thereby improving the flow efficiency of the gas in the main chassis 20, reducing the noise during the use of the range hood, and achieving a better silent use effect of the range hood.

[0072] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A fume treatment device, characterized in that: include: Main chassis (20); as well as The flow guide (10) comprises a sleeve (11) and a spiral blade assembly (12); the sleeve (11) can discharge the gas in the main box (20) to the outside of the main box (20); the sleeve (11) is rotatably connected to the main box (20); and the spiral blade assembly (12) is arranged on the inner wall of the sleeve (11).

2. The oil fume treatment device according to claim 1, characterized in that: The oil fume treatment device further comprises a bearing (40), wherein the bearing (40) comprises an inner ring (41) and an outer ring (42) which are rotatably connected, wherein the outer ring (42) is fixedly connected to the main housing (20), and the sleeve (11) is sleeved on the inner side of the inner ring (41) and fixedly connected to the inner ring (41); and / or The sleeve body (11) has a sleeve body inner cavity (113), and the cross-sectional area of ​​the sleeve body inner cavity (113) gradually decreases along the flow direction of the gas in the main box (20).

3. The oil fume treatment device according to claim 1, characterized in that: The casing (11) has an air inlet (111) and an air outlet (112); the spiral blade assembly (12) comprises a spiral blade, and the spiral blade extends from the air inlet (111) to the air outlet (112).

4. The oil fume treatment device according to claim 3, characterized in that: The tangent direction L of one end of the spiral blade close to the air outlet (112) t and the axis L of the sleeve (11) C are arranged at an angle α, wherein 0≤α≤10°; and / or The spiral blades are arranged in plurality, and the plurality of spiral blades are arranged at equal intervals along the circumference of the sleeve (11).

5. The oil fume treatment device according to claim 1, characterized in that: The spiral blade assembly (12) comprises a first spiral blade (121) and a second spiral blade (122); the first spiral blade (121) is provided in plurality, the plurality of first spiral blades (121) are arranged at intervals along the circumference of the sleeve (11), the second spiral blade (122) is arranged between two adjacent first spiral blades (121), the first spiral blade (121) has a first guide surface (1211), the second spiral blade (122) has a second guide surface (1221), and the area of ​​the first guide surface (1211) is greater than the area of ​​the second guide surface (1221).

6. The oil fume treatment device according to claim 1, characterized in that: The oil fume treatment device also includes: A smoke collecting hood (50) having a smoke collecting chamber (51); A partition assembly (60) is arranged in the main case inner cavity (25) of the main case (20) and divides the main case inner cavity (25) into a first cavity (251) and a second cavity (252); a first air inlet (611) is provided on the partition assembly (60); the first cavity (251) is connected to the smoke collecting cavity (51); and the guide member (10) is arranged in the second cavity (252).

7. The oil fume treatment device according to claim 6, characterized in that: The oil fume treatment device also includes: a fan system (30); and A first baffle (70) is provided with a second air inlet (711); the first baffle (70) is arranged in the second cavity (252) to divide the second cavity (252) into a first silencer cavity (2521) and a receiving cavity (2522); the guide member (10) is arranged in the first silencer cavity (2521) and is connected to the second air inlet (711); and the fan system (30) is arranged in the receiving cavity (2522).

8. The oil fume treatment device according to claim 7, characterized in that: The oil fume treatment device further comprises a second baffle (80), the second baffle (80) being arranged in the accommodating cavity (2522), the second baffle (80) dividing the accommodating cavity (2522) into an accommodating cavity (25221) and a second silencing cavity (25222), the fan system (30) being arranged in the accommodating cavity (25221); and / or The main housing (20) is provided with an air outlet (261), and the upper end of the sleeve (11) is plugged into the air outlet (261); and / or The first baffle (70) comprises a baffle body (71) and a flange (72); the baffle body (71) is provided with the second air inlet (711); the flange (72) is formed by extending upward from the second air inlet (711); the lower end of the sleeve (11) is located above the baffle body (71); and the flange (72) is inserted into the interior of the lower end of the sleeve (11).

9. The oil fume treatment device according to claim 8, characterized in that: The second baffle (80) is an arc-shaped plate, and the arc-shaped plate is arranged to protrude in a direction away from the fan system (30).

10. The oil fume treatment device according to claim 8, characterized in that: The main chassis (20) comprises a front panel (21), a first side panel (22), a rear panel (23) and a second side panel (24) which are connected in sequence, the first baffle (70) being fixedly connected to the front panel (21), the first side panel (22), the rear panel (23) and the second side panel (24) respectively, the first baffle (70), the front panel (21), the first side panel (22), the rear panel (23) and the second side panel (24) together forming four angular spaces, at least one of the angular spaces being provided with a guide arc plate (90), the guide arc plate (90) being protruding in a direction away from the fan system (30).

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