Fan blade structure for cooking equipment

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to a fan blade structure for cooking equipment, which comprises an upper fixing piece and a lower fixing piece with the center penetrating, the upper fixing piece is circular, a plurality of blades distributed along the circumferential direction are arranged on the bottom surface of the upper fixing piece, and the blades are provided with guide surfaces bent inwards. The bottom ends of the blades are connected with the lower fixing piece. The possibility that the air impacts other parts in the cooking equipment is reduced, kinetic energy loss of the air is reduced, the effect of improving the air outlet amount and the air outlet rate of the fan blades is achieved, meanwhile, the air flowing path is more regular, vibration noise can be reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and particularly relates to a blade structure for a cooking device. Background Art

[0002] There is a food processor with good hot air circulation effect, whose authorized publication number is CN210611905U, including: a body with an installation cavity inside; a fryer installed in the installation cavity; a heating device installed in the installation cavity and located above the fryer; a fan located above the heating device and blowing air directly at the heating device. The fan is installed at the end of a rotating shaft driven by a motor. The fan includes a mounting disc connected to the rotating shaft and a plurality of blades protruding downward relative to the mounting disc. The plurality of blades are arranged at the edge of the mounting disc and circumferentially arranged around the center of the mounting disc.

[0003] The above-mentioned blades are formed by bending downward from the mounting disc, and a notch is formed at the top of the mounting disc. When the blades suck the air around the fan laterally into the center of the mounting disc, some air will impact other components of the body through the notch, which is likely to generate vibration noise and cause air loss. At the same time, the fan has a large air resistance and a small air volume during rotation, thereby reducing the cooking efficiency of the food processor. Summary of the Invention

[0004] In order to effectively solve the above problems, the present application provides a blade structure for a cooking device.

[0005] The blade structure for a cooking device provided by the present application adopts the following technical solutions:

[0006] A blade structure for a cooking device includes an upper fixing piece and a lower fixing piece with a central through hole. The upper fixing piece is circularly arranged, and the bottom surface of the upper fixing piece is provided with a plurality of blades circumferentially distributed. The blades have a guiding surface bent inward, and the bottom ends of the blades are connected to the lower fixing piece.

[0007] By adopting the above technical solutions, the blades suck the air around the blade structure through the central channel of the lower fixing piece to the center of the upper fixing piece, and the air hitting the upper fixing piece is thrown out between adjacent two blades. Compared with the prior art where the blades are arranged at the edge of the mounting disc, the possibility of air hitting other components in the cooking device is reduced, so as to reduce the kinetic energy loss of the air, and the air volume and air outlet rate of the blade are improved. At the same time, the air flow path is more regular, vibration noise can be reduced, and the user experience is improved. During actual operation, it is found that the cooking device using the blade of this solution has less noise than the cooking device using the fan of the prior art.

[0008] The upper fixing piece is circularly arranged, which can further reduce the possibility that the air inhaled from the central channel of the lower fixing piece hits other components in the cooking device, thereby reducing the kinetic energy loss of the air, increasing the air volume output of the impeller, and further reducing the vibration noise.

[0009] In addition, its blades have a guiding surface that is bent inward, which can further reduce the wind resistance when the blades rotate, making the impeller rotate more stably, thereby reducing the vibration noise. And when the impeller is connected to the motor, it can reduce the motor power at a fixed rotation speed; and due to the setting of the guiding surface, the air at the center of the upper fixing piece is thrown out and hits the blades, and under the guiding action of the guiding surface, it can also enter between adjacent two blades and be thrown outwards to achieve the effect of increasing the air volume output of the impeller.

[0010] Optionally, the blades are fixedly connected between the upper fixing piece and the lower fixing piece.

[0011] By adopting the above technical solution, the connection strength among the blades, the upper fixing piece and the lower fixing piece can be improved, thereby prolonging the service life of the impeller.

[0012] Optionally, the blades are provided with first positioning blocks, and the upper fixing piece is provided with first positioning holes that cooperate with the first positioning blocks; or, the blades are provided with first positioning holes, and the upper fixing piece is provided with first positioning blocks that cooperate with the first positioning holes.

[0013] By adopting the above technical solution, it can play a positioning role when the blades, the upper fixing piece and the lower fixing piece are connected, so as to facilitate the positioning and installation of the impeller, improve the installation accuracy of the impeller, and thus ensure the service performance of the impeller; at the same time, combined with the fixed connection among the three, it can further enhance the connection stability among the blades, the upper fixing piece and the lower fixing piece, thereby prolonging the service life of the impeller.

[0014] Optionally, the blades are provided with second positioning blocks, and the lower fixing piece is provided with second positioning holes that cooperate with the second positioning blocks; or, the blades are provided with second positioning holes, and the lower fixing piece is provided with second positioning blocks that cooperate with the second positioning holes.

[0015] Optionally, the upper fixing piece is provided with a plurality of reinforcing parts.

[0016] Optionally, the reinforcing parts are formed by the upper fixing piece being recessed downward.

[0017] Optionally, the reinforcing parts extend from the center of the upper fixing piece to between adjacent two blades.

[0018] Optionally, the reinforcing parts are bent, and the bending radian of the reinforcing parts is the same as that of the blades. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the wind blade shown in Embodiment 1 of the present application.

[0020] Figure 2 It is another schematic structural diagram of the wind blade shown in Embodiment 1 of the present application.

[0021] Figure 3 It is a bottom view of the upper fixing piece and the blade shown in Embodiment 1 of the present application.

[0022] Figure 4 It is a schematic structural diagram of the blade shown in Embodiment 1 of the present application.

[0023] Figure 5 It is a schematic structural diagram of the cooking device implemented in Embodiment 2 of the present application.

[0024] Explanation of reference numerals: 1. Upper fixing piece; 2. Blade; 21. Inner end point; 22. Outer end point; 3. Lower fixing piece; 31. Air inlet channel; 4. Air outlet channel; 41. Air inlet; 42. Air outlet; 5. First positioning block; 6. First positioning hole; 7. Reinforcing part; 8. Upper housing; 81. Heating element; 82. Wind blade; 83. Motor; 9. Lower housing; 91. Pot body assembly. Detailed implementation manners Detailed implementation manners

[0025] The present application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments are only specific elaborations of the present application, and their purpose is to enable those skilled in the art to better understand the technical solutions of the present application, and should not be regarded as a limitation to the present application.

[0026] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0027] Embodiment 1:

[0028] The present application discloses a wind blade structure for a cooking device, including an upper fixing piece 1 and a lower fixing piece 3 with a central through hole. The upper fixing piece 1 is circularly arranged, and the bottom surface of the upper fixing piece 1 is provided with a plurality of blades 2 distributed circumferentially. The blades 2 have a guiding surface that is bent inward, and the bottom end of the blades 2 is connected to the lower fixing piece 3.

[0029] Since the lower fixing piece 3 is provided with a central through hole, an air inlet passage 31 is formed at the central opening of the lower fixing piece 3. When the fan blade rotates, the blade 2 sucks the air around the fan blade through the air inlet passage 31 to the center of the upper fixing piece 1. The blade 2 sucks the air around the fan blade through the air inlet passage 31 of the lower fixing piece 3 to the center of the upper fixing piece 1, and discharges the air reaching the height area where the blades are located from the air outlet passage 4 between two adjacent blades 2. Compared with the prior art where the blades are arranged at the edge of the mounting disc, the possibility of the air hitting other components in the cooking device is reduced, so as to reduce the kinetic energy loss of the air, improve the air volume and air outlet rate of the fan blade, and at the same time, the air flow path is more regular, the vibration noise can be reduced, and the user experience can be improved; during actual operation, it is found that the cooking device using the fan blade of this solution has less noise than the cooking device using the fan of the prior art.

[0030] The upper fixing piece 1 is circularly arranged, and the projection of the central opening of the lower fixing piece 3 is within the coverage of the upper fixing piece 1, which can further reduce the possibility of the air sucked from the air inlet passage 31 hitting other components in the cooking device, thereby reducing the kinetic energy loss of the air, increasing the air volume of the fan blade, and further reducing the vibration noise.

[0031] In addition, the blade 2 has a guiding surface that is bent inward, which can further reduce the wind resistance when the blade 2 rotates, make the rotation of the fan blade more stable, thereby reducing the vibration noise, and when the fan blade is connected to the motor, the motor power can be reduced at a fixed rotation speed; and due to the setting of the guiding surface, the air at the center of the upper fixing piece 1 can also enter the air outlet passage 4 and be discharged outward under the guiding action of the guiding surface when it hits the blade 2, so as to achieve the effect of increasing the air volume of the fan blade.

[0032] In this embodiment, the blade 2 is arc-shaped, so that the air outlet passage 4 is bent, which can cooperate with the air flow sucked from the center of the lower fixing piece 3 to better guide the air flow discharged from the center of the upper fixing piece 1, and cooperate with the uniform arrangement of the blade 2 to evenly distribute the air outlet air flow. On the one hand, the loss caused by the air flow hitting the blade 2 can be reduced, and at the same time, the air flow flowing out from the air outlet passage 4 is more regular, so as to improve the utilization rate of the air flow; on the other hand, when the fan blade is applied to a cooking device, the uniformity of heating the food in the cooking device can be improved. In other embodiments, the inner surface of the blade 2 can also be arc-shaped.

[0033] A plurality of blades 2 are evenly distributed along the circumference of the upper fixing piece 1. Therefore, the airflow generated when the blades 2 rotate is relatively uniform. At the same time, the manufacturing and processing technology of the blades 2 can be simplified, and the manufacturing and processing difficulty of the blades 2 can be reduced. When the wind blade is applied to a cooking device, the hot air in the pot body assembly can be made more uniform, and the cooking uniformity of the food can be improved.

[0034] Specifically, the blade 2 is fixedly connected between the upper fixing piece 1 and the lower fixing piece 3. In this embodiment, the blade 2 is welded between the upper fixing piece 1 and the lower fixing piece 3. In other embodiments, the blade 2 can also be adhesively bonded or fixedly connected by bolts to the upper fixing piece 1 and the lower fixing piece 3, which can enhance the connection strength among the blade 2, the upper fixing piece 1 and the lower fixing piece 3, and thus improve the service life of the wind blade. In this embodiment, 12 blades 2 are used. In other embodiments, 10 - 16 blades can be adopted.

[0035] Combined with Figure 2 , a first positioning block 5 and a second positioning block are provided on the blade 2. A first positioning hole 6 that cooperates with the first positioning block 5 is provided on the upper fixing piece 1, and a second positioning hole that cooperates with the second positioning block is provided on the lower fixing piece 3. It can play a positioning role when the blade 2, the upper fixing piece 1 and the lower fixing piece 3 are connected, so as to facilitate the positioning and installation of the wind blade, improve the installation accuracy of the wind blade, and thus ensure the service performance of the wind blade. At the same time, combined with the fixed connection among the three, it can further enhance the connection stability among the blade 2, the upper fixing piece 1 and the lower fixing piece 3, and thus improve the service life of the wind blade. In other embodiments, a first positioning hole 6 and a second positioning hole are provided on the blade 2, a first positioning block 5 that cooperates with the first positioning hole 6 is provided on the upper fixing piece 1, and a second positioning block that cooperates with the second positioning hole is provided on the lower fixing piece 3.

[0036] In addition, an air inlet 41 near the center of the upper fixing piece 1 and an air outlet 42 far from the center of the upper fixing piece 1 are provided in the air outlet passage 4, and the size of the air outlet passage 4 gradually increases from the air inlet 41 to the air outlet 42 direction. When the air flow passes through the air outlet passage 4, the sizes of the air inlet 41 and the air outlet 42 directly affect the flow velocity of the air flow. When the air inlet 41 is smaller than the air outlet 42, a stronger pressure will be formed at the air inlet 41, enabling the air flow at the center of the upper fixing piece 1 to enter the air outlet passage 4, and the air velocity at the air inlet 41 is also relatively large. Subsequently, when the air flow reaches the air outlet 42, the air velocity decreases, and the air volume at the air outlet 42 increases, thereby improving the air outlet efficiency. On the contrary, when the air inlet 41 is larger than the air outlet 42, the air volume at the air inlet 41 is relatively large. After a large amount of air flow enters the air outlet passage 4, it will hit the blade 2, resulting in air flow loss, and the air volume at the air outlet 42 is relatively small.

[0037] Among them, the size of the air outlet passage 4 gradually increases from the air inlet 41 to the air outlet 42, enabling the air flow in the air outlet passage 4 to have a smooth transition, which can not only reduce the loss of the air flow but also reduce vibration noise.

[0038] It should be noted that the ratio of the radial length of the blade 2 to the radius of the upper fixing piece 1 is 1:8 - 3:8, which can guide the air flow entering the air outlet passage 4, making the air flow at the air outlet 42 more regular, and thus improving the utilization rate of the air flow; among them, the radial length of the blade 2 is the length of a single blade 2 projected radially on the upper fixing piece 1.

[0039] The ratio of the radial length of a single blade 2 to the radius of the upper fixing piece 1 determines the radial length of the air outlet passage 4, determines the time when the air flow enters the air outlet passage 4 and the state in which the air flow enters the air outlet passage 4. The blade 2 can guide the air flow entering the air outlet passage 4 and regularize the air flow at the air outlet 42, thereby improving the utilization rate of the air flow. Since the area of the air flow is gradually increasing in the radial direction from the center to the outside of the upper fixing piece 1, the air flow velocity and direction at different positions are different. Therefore, how to select the position of the air inlet 41 of the air outlet passage 4 can affect the smoothness of the air flow in the air outlet passage 4, as well as the wind speed and air volume at the air outlet 42 of the air outlet passage 4. An appropriate length and position of the air outlet passage 4 can adjust the air flow guiding time, so as to adapt to the overall structure of the wind blade and obtain better air volume and air outlet rate.

[0040] When the ratio of the radial length of the blade 2 to the radius of the upper fixing piece 1 is less than 1:8, the radial length of the air outlet passage 4 is short, and it cannot play a good guiding role for the air flow entering the air outlet passage 4, making the air flow at the air outlet 42 disordered, thus reducing the utilization rate of the air flow; when the ratio of the radial length of the blade 2 to the radius of the upper fixing piece 1 is greater than 3:8, the radial length of the air outlet passage 4 is long, resulting in a small space for the air flow to gather at the center of the upper fixing piece 1, causing the air intake volume of the air outlet passage 4 to become smaller, and thus affecting the air intake volume and air outlet volume of the wind blade.

[0041] In addition, combined Figure 4 , the blade 2 is provided with an inner end point 21 and an outer end point 22. Its inner end point 21 is the connection point of the blade 2 close to the center of the upper fixing piece 1 with the upper fixing piece 1 or the lower fixing piece 3, and the outer end point 22 is the connection point of the blade 2 far from the center of the upper fixing piece 1 with the upper fixing piece 1 or the lower fixing piece 3; the angle a1 between the tangent of the inner end point 21 and the blade 2 and the connection line of the inner end point 21 and the outer end point 22 is 5° - 31°, and the angle a2 between the tangent of the outer end point 22 and the blade 2 and the connection line of the inner end point and the outer end point is 5° - 31°, enabling the air flow entering the air outlet passage 4 to have a smooth transition, better guiding the air flow, reducing the possibility of the air flow hitting the blade, and thus reducing vibration noise.

[0042] When the angle a1 between the tangent line of the inner end point and blade 2 and the line connecting the inner end point and the outer end point is less than 5°, the arc at the end of blade 2 near the center of the upper fixing piece 1 is smaller and closer to a straight plate state. When the air at the center of the upper fixing piece 1 is thrown out and hits blade 2, it is likely to cause air loss, affecting the air intake and air output of the wind blade; when the angle a1 between the tangent line of the inner end point and blade 2 and the line connecting the inner end point and the outer end point is greater than 31°, the arc at the end of blade 2 near the center of the upper fixing piece 1 is larger. When the air at the center of the upper fixing piece 1 is thrown out, it is easier to hit blade 2, causing air loss and generating vibration noise at the same time.

[0043] When the angle a2 between the tangent line of the outer end point and blade 2 and the line connecting the inner end point and the outer end point is less than 5°, when the air flows through the air outlet channel 4 and is thrown out, under the guiding action of blade 2, it is easier to hit other components outside the wind blade, causing air loss and generating vibration noise at the same time; when the angle a2 between the tangent line of the outer end point and blade 2 and the line connecting the inner end point and the outer end point is greater than 31°, when the air flows through the air outlet channel 4 and is thrown out, it is likely to flow into the adjacent air outlet channel 4 under the guiding action of blade 2 and flow back to the center of the upper fixing piece 1, resulting in a lower air output of the wind blade.

[0044] In this embodiment, the angles of angle a1 and angle a2 are the same, that is, the blade is arranged in an arc shape, and both the air inlet 41 and the air outlet 42 of the air outlet channel 4 can play a better guiding role in the air flow, avoiding the generation of vibration noise. In other embodiments, the angles of angle a1 and angle a2 may also be different.

[0045] Specifically, the ratio of the height of blade 2 to the radius of the upper fixing piece 1 is 1:2.5 - 1:4, which can improve the self-strength of the wind blade, and to a certain extent, can prevent the wind blade from deforming due to the impact of the air flow during rotation, thereby increasing the air volume of the wind blade. When the ratio of the height of blade 2 to the radius of the upper fixing piece 1 is less than 1:2.5, the height of blade 2 is longer or the radius of the upper fixing piece 1 is shorter, resulting in a lower strength of the wind blade; when the ratio of the height of blade 2 to the radius of the upper fixing piece 1 is greater than 1:4, the height of blade 2 is shorter or the radius of the upper fixing piece 1 is longer, although it can improve the strength of the wind blade, the air volume of the wind blade is smaller.

[0046] It can be understood that during the operation of the wind blade, the wind blade mainly beats the air and does work on the air. Due to the action and reaction forces, the air flow will impact the wind blade, generating strong stress and strain, especially in a high-temperature working environment. Therefore, the strength design of the wind blade is very important.

[0047] Among them, a plurality of reinforcing parts 7 are provided on the upper fixing piece 1, which can effectively improve the strength of the upper fixing piece 1. When the wind blade is impacted by air flow during operation, the reinforcing part 7 can, to a certain extent, prevent the upper fixing piece 1 from deforming, thus playing a role in protecting the wind blade.

[0048] Specifically, the reinforcing part 7 is located at the bottom of the upper fixing piece 1. A single reinforcing part 7 extends from the center of the upper fixing piece 1 to between two adjacent blades 2, that is, the air inlet 41 of the air outlet channel 4, which can ensure that the reinforcing part 7 plays the best protective effect on the upper fixing piece 1 and keeps the self-strength of the upper fixing piece 1 within the best range; at the same time, the reinforcing part 7 can also play a guiding role for the air flow, so that the air flow at the center of the upper fixing piece 1 enters the air outlet channel 4 under the guiding action of the reinforcing part 7, and the air intake and air output of the wind blade are increased. Therefore, the wind blade can withstand the high load brought by a large air volume and has the advantages of high strength and good stability.

[0049] The reinforcing part 7 includes a reinforcing ring provided on the upper fixing piece 1. The reinforcing ring is located outside the connecting hole. A plurality of reinforcing ribs extend outward from the reinforcing part 7 to the air inlet 41 of the air outlet channel 4, which can play a strengthening role on the upper fixing piece 1 and guide the air flow into the air outlet channel 4. It should be noted that the reinforcing part is formed by recessing downward from the top of the upper fixing piece 1, which can not only improve the connection stability between the reinforcing part 7 and the upper fixing piece 1, but also simplify the manufacturing and processing technology of the upper fixing piece 1 and the reinforcing part 7.

[0050] In this embodiment, the reinforcing ribs extend along the radial direction of the upper fixing piece 1 and are arranged in a straight plate shape, which can improve the strength of the upper fixing piece 1. In other embodiments, the reinforcing ribs can also be arranged in a curved shape, and the bending radian of the reinforcing part 7 is the same as that of the blade 2, which can further improve the guiding effect of the air flow, reduce the loss generated when the air flow impacts on the reinforcing part 7 or the blade 2, increase the air volume of the wind blade, and reduce vibration noise at the same time.

[0051] Embodiment 2:

[0052] This application embodiment discloses a cooking device. The cooking device can be a kitchen utensil with a baking function, which can fry food with heat. The cooking device can be an air fryer, an air oven, an air microwave oven, etc. This specification takes an air fryer as an example for illustration.

[0053] In this embodiment, as Figure 5 shown, the cooking device includes an upper housing 8 and a lower housing 9. A wind blade 82, a motor 83 for driving the wind blade 82 to rotate, and a heating element 81 are arranged in the upper housing 8. The heating element 81 is located on the circulation path of the wind blade 82. A pot body assembly 91 is arranged in the lower housing 9. The heating element 81 generates heat, and the wind blade 82 rotates to send the heat generated by the heating element 81 into the pot body assembly 91.

[0054] Specifically, the output shaft of the motor 83 is connected to the upper fixing piece 1 of the wind blade 82 and is used to drive the wind blade 82 to rotate to generate an air flow.

[0055] When the wind blade 82 rotates, the blade 2 sucks the air around the wind blade 82 through the central channel of the lower fixing piece 3 to the center of the upper fixing piece 1 and discharges it from the air outlet channel 4, so that the air flows radially along the upper fixing piece 1, making the wind blade 82 a centrifugal wind blade 82, and also making the pressure on one axial side of the wind blade 82 a negative pressure. When the wind blade 82 is applied to a cooking device, if the negative pressure side of the wind blade 82 faces the food in the pot body assembly 91, the hot air in the pot body assembly 91 can flow axially towards the wind blade 82, further flow radially out of the wind blade 82, and then enter the pot body assembly 91 again. When the wind blade 82 rotates continuously, the air can circulate between the pot body assembly 91 and the wind blade 82. When the hot air flows through the food in the pot body assembly 91, it can take away the moisture in the food and then roast the food.

[0056] It should be noted that the cooking device can be a pull-out air fryer, or a flip-type air fryer, or a box-type air fryer, etc. In this embodiment, a pull-out air fryer is taken as an example. The pot body assembly 91 includes a pot body and a guard plate arranged on the front side of the pot body. An opening is arranged on the front side of the lower shell 9, and the pot body is inserted into the lower shell 9 through the opening, and the guard plate covers and seals the opening. A handle is arranged on the guard plate, and the user can install the pot body assembly 91 into the lower shell 9 or take out the pot body assembly 91 from the lower shell 9 by holding the handle.

[0057] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A fan blade structure for cooking equipment, characterized in that: It includes an upper fixing plate and a lower fixing plate passing through the center. The upper fixing plate is arranged in a circular shape. The bottom surface of the upper fixing plate is provided with a plurality of blades distributed along the circumferential direction. The blades have guide surfaces bent inwardly. The bottom ends of the blades are connected to the lower fixing plate.

2. The fan blade structure for cooking equipment according to claim 1, characterized in that: The blades are fixedly connected between the upper fixing plate and the lower fixing plate.

3. A fan blade structure for cooking equipment according to claim 1 or 2, characterized in that: The blade is provided with a first positioning block, and the upper fixing plate is provided with a first positioning hole matched with the first positioning block; or the blade is provided with a first positioning hole, and the upper fixing plate is provided with a first positioning block matched with the first positioning hole.

4. A fan blade structure for cooking equipment according to claim 1 or 2, characterized in that: The blade is provided with a second positioning block, and the lower fixing plate is provided with a second positioning hole matched with the second positioning block; or the blade is provided with a second positioning hole, and the lower fixing plate is provided with a second positioning block matched with the second positioning hole.

5. The fan blade structure for cooking equipment according to claim 1, characterized in that: The upper fixing plate is provided with a plurality of reinforcing parts.

6. The fan blade structure for cooking equipment according to claim 5, characterized in that: The reinforcement portion is obtained by the upper fixing plate being recessed downward.

7. A fan blade structure for cooking equipment according to claim 5 or 6, characterized in that: The reinforcement portion extends from the center of the upper fixing plate to between two adjacent blades.

8. The fan blade structure for cooking equipment according to claim 7, characterized in that: The reinforcement portion is arranged in a curved shape, and the curvature of the reinforcement portion is consistent with the curvature of the blade.

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