Air curtain assembly and range hood

Abstract

The utility model discloses a kind of air curtain assembly and range hood, air curtain assembly includes air curtain support, cyclone lower seat and air curtain fan;Air curtain support is equipped with avoidance mouth and the first connecting position in one side of avoidance mouth, first connecting position is equipped with first connecting hole;Cyclone lower seat is equipped with air duct and the third connecting hole in the inboard of air duct, cyclone lower seat is equipped on air curtain support, the air outlet end of air duct is aligned avoidance mouth;Air curtain fan is equipped on cyclone lower seat, the inboard of air curtain fan is equipped with fifth connecting hole;Wherein, connecting piece passes through third connecting hole and first connecting hole and connects cyclone lower seat and air curtain support, connecting piece sequentially passes through fifth connecting hole, third connecting hole and first connecting hole and connects air curtain fan, cyclone lower seat and air curtain support.The utility model can improve the assembly convenience and structural stability of air curtain assembly.

Description

Technical Field

[0001] This utility model relates to the field of smoke machine technology, specifically to an air curtain assembly and a smoke machine. Background Technology

[0002] An air curtain assembly is installed above the top panel of the range hood. The air curtain assembly can discharge air downwards through the air curtain outlet on the top panel, creating an air curtain below the top panel to reduce the escape of oil fumes. In the existing technology, when assembling the air curtain assembly, the cyclone lower seat is usually fixed to the air curtain bracket, and then the air curtain fan is fixed to the cyclone lower seat. This assembly method is not stable enough and the operation is cumbersome. Utility Model Content

[0003] The purpose of this invention is to provide an air curtain assembly for a smoke hood, which solves the aforementioned technical problems.

[0004] The air curtain assembly proposed in this utility model includes an air curtain support, a cyclone lower seat, and an air curtain fan; the air curtain support has a clearance opening and a first connecting position located on one side of the clearance opening, and the first connecting position has a first connecting hole; the cyclone lower seat has a third connecting hole on the side corresponding to the first connecting position, the cyclone lower seat is mounted on the air curtain support, and the air outlet end of the air duct is aligned with the clearance opening; the air curtain fan is mounted on the cyclone lower seat, and the side of the air curtain fan corresponding to the first connecting position has a fifth connecting hole; wherein, the connecting piece passes through the fifth connecting hole, the third connecting hole, and the first connecting hole in sequence to connect the air curtain fan, the cyclone lower seat, and the air curtain support.

[0005] According to one embodiment of the present invention, there are two first connection positions, which are symmetrically arranged on the left and right sides of the air curtain bracket, and each first connection position is provided with a first connection hole.

[0006] According to one embodiment of the present invention, a first buckle is provided on the other side of the air curtain bracket, and a slot is provided on the same side of the cyclone lower seat, and the first buckle is engaged in the slot.

[0007] According to one embodiment of the present invention, a second buckle is provided on the side of the cyclone lower seat corresponding to the side with the third connecting hole, and the corresponding side of the air curtain fan is engaged in the second buckle.

[0008] According to one embodiment of the present invention, a grille is provided inside the air duct, the grille extends downward out of the air duct, the air duct is aligned with the clearance opening, and the part of the grille extending out of the air duct extends downward out of the clearance opening.

[0009] According to one embodiment of the present invention, the normal angle between the grille and the horizontal plane is 0°-30°.

[0010] According to one embodiment of the present invention, both sides of the clearance opening are provided with vertical walls. When the cyclone lower seat is installed on the air curtain bracket, the part of the cyclone lower seat with the air duct is inserted between the two vertical walls and aligned with the clearance opening. The vertical walls abut against the corresponding side wall surfaces of the cyclone lower seat.

[0011] According to one embodiment of the present invention, the air curtain support is further provided with a second connecting position, which is located on the same side as the first connecting position. The second connecting position is provided with a second connecting hole, and the cyclone lower seat is provided with a fourth connecting hole corresponding to the second connecting hole. The connector passes through the fourth connecting hole and the second connecting hole to connect the cyclone lower seat and the air curtain support.

[0012] This utility model also proposes a smoke hood with the above-mentioned air curtain assembly. The smoke hood includes a smoke hood body, the smoke hood body has an electric control cavity, the bottom plate of the electric control cavity is provided with an air curtain outlet, the top plate of the electric control cavity is provided with an air curtain inlet, the air curtain assembly is installed in the electric control cavity, the air curtain bracket is connected to the bottom plate of the electric control cavity, the clearance is aligned with the air curtain outlet, and the air curtain inlet is aligned with the air curtain fan.

[0013] According to one embodiment of the present invention, the cover plate of the main body of the smoke machine is provided with an inspection port, the inspection port is aligned with the electrical control cavity, and an inspection cover is installed inside the inspection port, the inspection cover forming the top plate of the electrical control cavity.

[0014] Compared with the prior art, the air curtain assembly of this utility model has the following advantages:

[0015] In this utility model, the third connecting hole is connected to the first connecting hole by a connector to fix the cyclone lower seat to the air curtain support; the fifth connecting hole, the fourth connecting hole and the second connecting hole are connected by another connector to fix the cyclone lower seat, the air curtain support and the air curtain fan together. In this way, the connection structure of the cyclone lower seat, the air curtain support and the air curtain fan can be made more compact and stable, and the installation process of the air curtain fan can be simplified, improving the assembly convenience of the air curtain assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the air curtain assembly of this utility model;

[0017] Figure 2 This is an exploded view of the structure of the air curtain component of this utility model;

[0018] Figure 3 This is an exploded view of the air curtain component of this utility model from another direction;

[0019] Figure 4 This is an exploded view of another embodiment of the air curtain component of this utility model;

[0020] Figure 5This is a schematic diagram of the structure of the smoke hood of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the range hood of this utility model after the inspection cover is removed;

[0022] Figure 7 This is a structural cross-sectional view of the smoke hood of this utility model;

[0023] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle.

[0024] In the diagram: 1. Air curtain bracket, 11. Clearance opening, 12. First connecting position, 121. First connecting hole, 13. Second connecting position, 131. Second connecting hole, 14. First buckle, 15. Vertical wall, 2. Cyclone lower seat, 21. Air duct, 211. Grille, 22. Third connecting hole, 23. Fourth connecting hole, 24. Slot, 25. Second buckle, 3. Air curtain fan, 31. Fifth connecting hole, 4. Main body of the range hood, 41. Electrical control cavity, 42. Air curtain outlet, 43. Air curtain inlet, 44. Flanged edge, 45. Cover plate, 451. Inspection port, 46. Inspection cover.

[0025] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0030] This utility model discloses an air curtain assembly for a smoke hood. Please refer to [link / reference]. Figures 1 to 3 The air curtain assembly proposed in this utility model includes an air curtain support 1, a cyclone lower seat 2, and an air curtain fan 3. The air curtain support 1 is provided with a clearance opening 11 and a first connecting position 12 located on one side of the clearance opening 11. The first connecting position 12 is provided with a first connecting hole 121. The cyclone lower seat 2 is provided with an air duct 21. The side of the cyclone lower seat 2 corresponding to the first connecting position 12 is provided with a third connecting hole 22. The cyclone lower seat 2 is provided on the air curtain support 1, and the air outlet end of the air duct 21 is aligned with the clearance opening 11. The air curtain fan 3 is provided on the cyclone lower seat 2. The side of the air curtain fan 3 corresponding to the first connecting position 12 is provided with a fifth connecting hole 31. The connecting piece passes through the fifth connecting hole 31, the third connecting hole 22, and the first connecting hole 121 in sequence to connect the air curtain fan 3, the cyclone lower seat 2, and the air curtain support 1. In this utility model, the fifth connecting hole 31, the third connecting hole 22 and the first connecting hole 121 correspond to each other from top to bottom in the air curtain assembly. When assembling the air curtain assembly, the connector can be a screw, and the second connecting hole 131 is a screw hole. When the connector connects the air curtain fan 3, the cyclone lower seat 2 and the air curtain bracket 1, it passes through the fifth connecting hole 31, the third connecting hole 22 and the first connecting hole 121 from above and downwards to connect the three together, making the assembly of the air curtain assembly more convenient.

[0031] Especially when the air curtain assembly is applied to the smoke machine, the air curtain bracket 1 is welded to the inner wall of the electrical control cavity of the smoke machine. After the air curtain fan 3 and the cyclone lower seat 2 are assembled, the five connecting holes 31, the third connecting hole 22 and the first connecting hole 121 can be directly connected with the connectors to fix the three together, making the assembly and maintenance of the air curtain fan more convenient.

[0032] In other embodiments, such as Figure 4As shown, the air curtain support 1 is also provided with a second connecting position 13, which is located on the same side as the first connecting position 12. The second connecting position 13 is provided with a second connecting hole 131. The cyclone lower seat 2 is also provided with a fourth connecting hole 23 corresponding to the second connecting hole 131. A connector passes through the fourth connecting hole 23 and the second connecting hole 131 to connect the cyclone lower seat 2 and the air curtain support 1. The fourth connecting hole 23 is connected to the first connecting hole 121 by a connector to realize the connection and fixation between the cyclone lower seat 2 and the air curtain support 1; thereby improving the connection stability and improving the overall structural stability of the air curtain assembly.

[0033] In this embodiment, the air curtain assembly can be installed on the top plate of the main body 4 of the smoke machine. An air curtain outlet 42 is provided on the top plate, and the clearance 11 of the air curtain bracket 1 is corresponding to the air curtain outlet 42. A cyclone lower seat 2 is mounted on the air curtain bracket 1, and the air duct 21 of the cyclone lower seat 2 is connected to the air curtain outlet 42 through the clearance 11. An air curtain fan 3 is mounted on the cyclone lower seat 2, with its outlet facing the air duct 21. The airflow blown by the air curtain fan 3 towards the air duct 21 can flow through the clearance 11 to the air duct 21 of the cyclone lower seat 2, then through the air duct 21 of the cyclone lower seat 2 to the air curtain outlet 42, and finally through the air curtain outlet 42 to the area below the top plate, forming an air curtain.

[0034] The air curtain component of this utility model, such as Figures 1 to 3 As shown, there are two first connection positions 12, which are symmetrically arranged on the left and right sides of the air curtain bracket 1. Each first connection position 12 is provided with a first connection hole 121. In this way, the connection positions between the cyclone lower seat 2 and the air curtain bracket 1 are increased, as are the overall connection positions between the air curtain fan 3, the cyclone lower seat 2 and the air curtain bracket 1, thereby improving the connection stability and the overall structural stability of the air curtain assembly.

[0035] In the embodiment with the second connection position 13, there are also two second connection positions 13, which are spaced apart along the length of the air curtain support 1 and located between the two first connection positions 12. It can be understood that the number and position of the third connection holes 22 on the cyclone lower seat 2 correspond to the first connection holes 121, the position and number of the fourth connection holes 23 correspond to the second connection holes 131, and the number and position of the fifth connection holes 31 on the air curtain fan 3 correspond to the third connection holes 22. In this way, the connection positions between the cyclone lower seat 2 and the air curtain support 1 can be increased, as well as the overall connection positions of the air curtain fan 3, the cyclone lower seat 2 and the air curtain support 1 can be increased, thereby improving the connection stability and improving the overall structural stability of the air curtain assembly.

[0036] The air curtain component of this utility model, such as Figures 1 to 3As shown, the air curtain bracket 1 is provided with a first buckle 14 on the other side, and the cyclone lower seat 2 is provided with a slot 24 on the same side. The first buckle 14 is engaged in the slot 24. The engagement of the first buckle 14 with the slot 24 can realize the pre-fixation of the air curtain bracket 1 and the cyclone lower seat 2, which facilitates the subsequent formal fixing of the air curtain bracket 1 and the cyclone lower seat 2. The first connecting position 12 and the second connecting position 13 are located on one side of the width direction of the clearance opening 11, while the first buckle 14 is located on the other side of the width direction of the clearance opening 11. In this way, the distribution of the engagement position and the formal fixing position of the cyclone lower seat 2 and the air curtain bracket 1 can be more reasonable, so as to further improve the assembly stability of the air curtain bracket 1 and the cyclone lower seat 2.

[0037] The air curtain component of this utility model, such as Figures 1 to 3 As shown, the cyclone lower seat 2 has a second buckle 25 on the side corresponding to the side with the third connecting hole 22. The second side of the air curtain fan 3 is engaged in the second buckle 25. The second buckle 25 engages with the air curtain fan 3, which can realize the pre-fixation of the air curtain fan 3 and the cyclone lower seat 2, which facilitates the subsequent formal fixing of the air curtain fan 3, the cyclone lower seat 2 and the air curtain bracket 1. The third connecting hole 22 and the fourth connecting hole 23 are opened on the same long side of the cyclone lower seat 2, and the second buckle 25 is located on the other long side of the cyclone lower seat 2. In this way, the distribution of the engagement position and the formal fixing position of the cyclone lower seat 2 and the air curtain fan 3 can be more reasonable, so as to further improve the overall assembly stability of the air curtain assembly.

[0038] The air curtain component of this utility model, such as Figures 1 to 3 As shown, a grille 211 is provided inside the air duct 21, extending downwards from the air duct 21. The air duct 21 is aligned with the clearance opening 11, and the portion of the grille 211 extending out of the air duct 21 extends downwards into the clearance opening 11. The grille 211 guides and organizes the airflow blowing out of the air duct 21, allowing the airflow to form a more stable air curtain after exiting the air curtain outlet 42, thereby improving the operating effect of the air curtain assembly. The grille 211 extending into the clearance opening 11 allows the grille 211 to be positioned and engaged with the clearance opening 11, thereby positioning the air curtain bracket 1 against the cyclone lower seat 2, ensuring that the air outlet end of the air duct 21 remains aligned with the air curtain outlet 42.

[0039] In this utility model, the air curtain assembly has a normal angle of 0°-30° between the grille 211 and the horizontal plane. That is, the grille 211 forms an angle of 0°-30° with the vertical direction. When the air curtain fan 3 is running, the exhaust air from the fan 3 blows downwards through the grille 211, and the air curtain forms an angle of 0°-30° with the vertical direction. When the angle is 0°, the air curtain blows vertically downwards. When the angle is greater than 0°, the air curtain shifts towards the user side, getting closer to the user and increasing the distance between the air curtain and the wall of the fixed range hood, thus better blocking the fumes. However, if the air curtain shifts outwards too much, the lowest downstream wind speed point is relatively high, which may allow fumes to escape. Therefore, in this embodiment, the normal angle of the grille 211 with the horizontal plane is 0°-30°, which both expands the smoke collection range and prevents fumes from escaping.

[0040] The air curtain component of this utility model, such as Figures 1 to 3 As shown, both sides of the clearance opening 11 are provided with vertical walls 15. When the cyclone lower seat 2 is installed on the air curtain bracket 1, the part of the cyclone lower seat 2 with the air duct 21 is inserted between the two vertical walls 15 and aligned with the clearance opening 11. The vertical walls 15 abut against the corresponding side wall surfaces of the cyclone lower seat 2. The vertical walls 15 can act as abutments and limiters for the inserted part of the cyclone lower seat 2, so that the air outlet end of the air duct 21 can remain aligned with the clearance opening 11 and the air curtain outlet 42. This can improve the installation stability of the cyclone lower seat 2 on the air curtain bracket 1 and prevent the cyclone lower seat 2 from easily deviating from its original position under the vibration of the fan.

[0041] The air curtain component of this utility model, such as Figures 1 to 3 As shown, the vertical wall 15 on the second side edge of the clearance opening 11 is divided into three sections. The height of the vertical wall 15 at both ends is higher than that of the vertical wall 15 in the middle section. The upper ends of the vertical walls 15 at both ends are folded towards the first side to form the first buckle 14. The slot 24 is provided in the part of the cyclone lower seat 2 that is inserted between the two vertical walls 15. After the part of the cyclone lower seat 2 with the air duct 21 is inserted between the two vertical walls 15, the first buckle 14 can be directly engaged with the slot 24, thereby improving the ease of engagement.

[0042] like Figures 5 to 8 As shown, this utility model also proposes a range hood with the above-mentioned air curtain assembly. The range hood includes a range hood body 4, which has an electrical control cavity 41. The bottom plate of the electrical control cavity 41 is provided with an air curtain outlet 42, and the top plate of the electrical control cavity 41 is provided with an air curtain inlet 43. The air curtain assembly is installed in the electrical control cavity 41. The air curtain bracket 1 is connected to the bottom plate of the electrical control cavity 41. The clearance opening 11 is aligned with the air curtain outlet 42, and the air curtain inlet 43 is aligned with the air curtain fan 3.

[0043] When the air curtain assembly is running, the outside airflow flows into the electrical control cavity 41 from the air curtain inlet 43. After flowing through the air curtain fan 3, the air duct 21 of the cyclone lower seat 2 and the clearance opening 11, it flows out from the air curtain outlet 42. The airflow blown by the air curtain fan 3 towards the air duct 21 can flow through the clearance opening 11 to the air duct 21 of the cyclone lower seat 2, then through the air duct 21 of the cyclone lower seat 2 to the air curtain outlet 42, and finally through the air curtain outlet 42 to the area below the top plate to form an air curtain.

[0044] The smoke hood of this utility model, such as Figures 5 to 8 As shown, a flange 44 is provided on the bottom plate of the electrical control cavity 41 around the air curtain outlet 42. The air curtain bracket 1 is connected to the bottom plate of the electrical control cavity 41, and the clearance opening 11 is provided around the flange 44. The flange 44 can abut against the periphery of the clearance opening 11 to position the air curtain bracket 1, so that the clearance opening 11 of the air curtain bracket 1 can be kept aligned with the air curtain outlet 42, preventing the clearance opening 11 from easily becoming misaligned, thereby improving the overall installation stability of the air curtain assembly in the electrical control cavity 41.

[0045] The smoke hood of this utility model, such as Figures 5 to 8 As shown, the side of the air curtain bracket 1 with the first connection position 12 is located behind the electrical control cavity 41. The cover plate 45 of the smoke machine body 4 has an inspection port 451, which is aligned with the electrical control cavity 41. The projection of the inspection port 451 onto the electrical control cavity 41 covers the first connection position 12. An inspection cover 46 is installed inside the inspection port 451, forming the top plate of the electrical control cavity 41. The inspection cover 46 is detachably covered by the inspection port 451. When it is necessary to disassemble and repair the air curtain assembly, the inspection cover 46 can be removed first to expose the air curtain assembly through the inspection port 451. Then, the operator can disassemble the connector through the inspection port 451 to remove the air curtain fan 3 from the cyclone seat 2. This improves the convenience of maintenance of the air curtain assembly.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air curtain assembly for a smoke hood, characterized in that, include: An air curtain support (1) is provided with a clearance opening (11) and a first connection position (12) located on one side of the clearance opening (11). The first connection position (12) is provided with a first connection hole (121). The cyclone lower seat (2) is provided with an air duct (21). The cyclone lower seat (2) is provided with a third connecting hole (22) on the side corresponding to the first connecting position (12). The cyclone lower seat (2) is provided on the air curtain support (1). The air outlet end of the air duct (21) is aligned with the clearance opening (11). An air curtain fan (3) is provided on the lower seat (2) of the cyclone. The air curtain fan (3) has a fifth connection hole (31) on the side corresponding to the first connection position (12). The connectors pass through the fifth connecting hole (31), the third connecting hole (22) and the first connecting hole (121) in sequence to connect the air curtain fan (3), the cyclone lower seat (2) and the air curtain bracket (1).

2. The air curtain assembly according to claim 1, characterized in that, There are two first connection positions (12), and the two first connection positions (12) are symmetrically arranged on the left and right sides of the air curtain bracket (1). Each first connection position (12) is provided with a first connection hole (121).

3. The air curtain assembly according to claim 1, characterized in that, The air curtain support (1) is provided with a first buckle (14) on the other side, and the cyclone lower seat (2) is provided with a slot (24) on the same side, and the first buckle (14) is engaged in the slot (24).

4. The air curtain assembly according to claim 1, characterized in that, The cyclone lower seat (2) has a second buckle (25) on the side corresponding to the side with the third connecting hole (22), and the corresponding side of the air curtain fan (3) is engaged in the second buckle (25).

5. The air curtain assembly according to claim 1, characterized in that, The air duct (21) is provided with a grille (211), the grille (211) extends downward out of the air duct (21), the air duct (21) is aligned with the clearance opening (11), and the part of the grille (211) extending out of the air duct (21) extends downward out of the clearance opening (11).

6. The air curtain assembly according to claim 5, characterized in that, The normal angle between the grille (211) and the horizontal plane is 0°-30°.

7. The air curtain assembly according to claim 1, characterized in that, The clearance opening (11) has vertical walls (15) on both sides. When the cyclone lower seat (2) is installed on the air curtain bracket (1), the part of the cyclone lower seat (2) with the air duct (21) is inserted between the vertical walls (15) on both sides and aligned with the clearance opening (11). The vertical walls (15) abut against the corresponding side wall surface of the cyclone lower seat (2).

8. The air curtain assembly according to claim 1, characterized in that, The air curtain support (1) is also provided with a second connection position (13), which is located on the same side as the first connection position (12). The second connection position (13) is provided with a second connection hole (131). The cyclone lower seat (2) is also provided with a fourth connection hole (23) corresponding to the second connection hole (131). The connector passes through the fourth connection hole (23) and the second connection hole (131) to connect the cyclone lower seat (2) and the air curtain support (1).

9. A smoke hood comprising an air curtain assembly as described in any one of claims 1 to 8, characterized in that: The system includes a main body (4) of a range hood, which has an electrical control cavity (41). The bottom plate of the electrical control cavity (41) is provided with an air curtain outlet (42), and the top plate of the electrical control cavity (41) is provided with an air curtain inlet (43). The air curtain assembly is installed inside the electrical control cavity (41). The air curtain bracket (1) is connected to the bottom plate of the electrical control cavity (41). The clearance opening (11) is aligned with the air curtain outlet (42), and the air curtain inlet (43) is aligned with the air curtain fan (3).

10. The range hood according to claim 9, characterized in that, The side of the air curtain bracket (1) with the first connection position (12) is located behind the electrical control cavity (41). The cover plate (45) of the smoke machine body (4) is provided with an inspection port (451). The inspection port (451) is aligned with the electrical control cavity (41). The projection of the inspection port (451) onto the electrical control cavity (41) covers the first connection position (12). An inspection cover (46) is installed inside the inspection port (451). The inspection cover (46) forms the top plate of the electrical control cavity (41).

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