Installation structure of back plate assembly and range hood with installation structure

Abstract

The utility model discloses a mounting structure of a back plate assembly, which is used for a range hood and comprises a range hood main body, a first connecting plate is arranged on the rear side of the range hood main body, and the first connecting plate extends downwards to the lower part of the range hood main body; the back plate assembly is provided with a second connecting plate and a back plate, the second connecting plate is connected to the rear side of the back plate and extends upwards to the position above the upper edge of the back plate, and the part, extending upwards out of the back plate, of the second connecting plate is connected with the part, extending downwards out of the range hood body, of the first connecting plate. The back plate assembly and the range hood main body are not assembled together, so that the packaging size of the range hood can be reduced, and the range hood is convenient to store and transport; when the range hood is installed at a user home, the back plate assembly and the range hood main body can be assembled together by directly connecting the second connecting plate with the first connecting plate.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to an installation structure for a back panel assembly and a range hood having the same. Background Technology

[0002] Existing range hoods with back panels have their back panel assembly and main body assembled as one unit on the production line. The overall size of the range hood is relatively large, so the required packaging material is also large, making storage and transportation inconvenient. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an installation structure for a backplate assembly for a range hood.

[0004] The technical solution of this utility model is:

[0005] The range hood body has a first connecting plate on its rear side, which extends downward to the bottom of the range hood body; the back panel assembly has a second connecting plate and a back panel, the second connecting plate is connected to the rear side of the back panel and extends upward to the upper edge of the back panel, and the part of the second connecting plate extending upward out of the back panel is connected to the part of the first connecting plate extending downward out of the range hood body.

[0006] According to one embodiment of the present invention, the first connecting plate is provided with a positioning hole and a first connecting hole, and the second connecting plate is provided with a positioning pin and a second connecting hole. The positioning pin is connected in the positioning hole, and the screw passes through the first connecting hole and the second connecting hole to connect the first connecting plate and the second connecting plate.

[0007] According to one embodiment of the present invention, the second connecting plate has an "N" shaped structure, including a first connecting part, a second connecting part and a third connecting part connected in sequence. The second connecting part is formed by extending forward from the upper edge of the first connecting part, and the third connecting part is formed by extending upward from the front edge of the second connecting part. The first connecting part is connected to the rear side of the back plate, and the upper edge of the back plate abuts against the lower surface of the second connecting part.

[0008] According to one embodiment of the present invention, the portion of the first connecting plate extending downward to the lower part of the main body of the range hood is connected to the rear side of the third connecting part.

[0009] According to one embodiment of the present invention, the first connecting plate includes a first part, a second part, and a third part connected in sequence. The second part is formed by extending forward from the lower edge of the first part, and the third part is formed by extending downward from the front edge of the second part. The first part is connected to the back of the range hood body, the second part is connected to the lower part of the range hood body, and the third part is connected to the part of the second connecting plate that extends upward to the upper part of the back plate.

[0010] According to one embodiment of the present invention, the portion of the first connecting plate connected to the main body of the range hood and the portion of the second connecting plate connected to the rear side of the back plate are located on the same plane in the vertical direction.

[0011] According to one embodiment of the present invention, the main body of the smoke hood has a top plate and a rear plate, an extension plate extending upward from the rear edge of the top plate, the rear plate being connected to the extension plate, and the extension plate being located on the rear side of the rear plate.

[0012] According to one embodiment of the present invention, a connector is also included. The first connecting plate is provided with a third connecting hole, the rear plate is provided with a fourth connecting hole, and the extension plate is provided with a fifth connecting hole. The connector passes through the third connecting hole, the fifth connecting hole and the fourth connecting hole in sequence to connect the first connecting plate, the extension plate and the rear plate.

[0013] According to one embodiment of the present invention, the rear plate includes an upper part and a lower part, and a connecting part is provided between the upper part and the lower part. The connecting part extends from back to front, the rear edge of the connecting part is connected to the lower edge of the upper part, the front edge of the connecting part is connected to the upper edge of the lower part, the lower part is connected to the extension plate and is located on the front side of the extension plate, and a first connecting plate is connected to the rear side of the connecting part. The thickness of the first connecting plate and the connecting part is adapted to the thickness of the connecting part.

[0014] This utility model also provides a range hood with the above-mentioned back plate assembly installation structure. The main body of the range hood is provided with an air collection chamber, and the top plate of the main body of the range hood is provided with an air intake and an oil drip hole. The air intake and the oil drip hole are both connected to the air collection chamber. The range hood also includes an oil cup, which is connected to the bottom of the top plate. The opening of the receiving cavity of the oil cup faces the oil drip hole, and the oil cup is located on the front side of the connection area between the first connecting plate and the second connecting plate.

[0015] The beneficial technical effects of this utility model are as follows: The mounting structure of the back panel assembly provided by this utility model is applied to range hoods. Since the first connecting plate is located on the rear side of the range hood body, and the back panel assembly includes a second connecting plate, the first and second connecting plates are connected to connect the range hood body to the back panel. With this configuration, on the production line, there is no need to assemble the back panel assembly with the range hood body, thereby reducing the packaging size of the range hood using the mounting structure of the back panel assembly provided by this utility model, facilitating storage and transportation. When the range hood is installed at the user's home, the back panel assembly can be directly assembled with the range hood body by connecting the second connecting plate to the first connecting plate, making the installation operation convenient and efficient. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the back panel assembly and the main body of the range hood of this utility model;

[0017] Figure 2 This is an exploded view of the backplate assembly of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the back panel assembly and the range hood of this utility model;

[0019] Figure 4 yes Figure 3 An enlarged view of part A in the cross-sectional schematic diagram;

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

[0021] Figure 6 This is another structural schematic diagram of the smoke hood of this utility model;

[0022] In the picture:

[0023] Range hood body 1, first connecting plate 11, first part 111, second part 112, third part 113.

[0024] Positioning hole 1131, first connecting hole 1132, third connecting hole 1133, top plate 12, extension plate 121, fifth connecting hole 1211, air intake 122, oil drip hole 123, rear plate 13, upper part 131, lower part 132, fourth connecting hole 1321, connecting part 133;

[0025] Backplate assembly 2, second connecting plate 21, backplate 22, first connecting part 211, second connecting part 212, third connecting part 213, positioning pin 2131, second connecting hole 2132, backplate 22;

[0026] Oil cup 3.

[0027] 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

[0028] The following illustrations disclose several embodiments of the present invention. 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 the present invention. That is, in some embodiments of the present invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0029] 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.

[0030] 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.

[0031] In the field of modern kitchen appliances, the performance and structural design of range hoods are crucial to the user experience. The mounting structure of the back panel assembly not only affects the overall stability of the range hood but also closely relates to its aesthetic integrity and the coordinated operation of its internal functional components. This embodiment will describe in detail a back panel assembly mounting structure applied to a range hood and its specific implementation within the range hood.

[0032] 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:

[0033] like Figure 1 As shown, this embodiment provides a mounting structure for a back panel assembly, suitable for range hoods. The mounting structure includes a range hood body 1 and a back panel assembly 2, described in detail below:

[0034] Range Hood Body 1: A first connecting plate 11 is provided on the rear side of the range hood body 1. The first connecting plate 11 extends downward to the bottom of the range hood body 1. The first connecting plate 11 is a key component for connecting the range hood body 1 and the back panel assembly 2. It is installed on the rear side of the range hood body 1. The upper part of the first connecting plate 11 is connected to the rear side of the range hood body 1, and the lower part of the first connecting plate 11 extends out of the lower surface of the range hood body 1 to facilitate connection with the back panel assembly 2.

[0035] Back panel assembly 2: Back panel assembly 2 includes a second connecting plate 21 and a back panel 22. The second connecting plate 21 is connected to the rear side of the back panel 22 and extends upward to above the upper edge of the back panel 22. The portion of the second connecting plate 21 extending upward from the back panel 22 connects to the portion of the first connecting plate 11 extending downward from the main body 1 of the range hood. The lower region of the second connecting plate 21 is connected to the back of the back panel 22, and the upper region of the second connecting plate 21 is located above the upper edge of the back panel 22, and the upper region of the second connecting plate 21 is not obstructed by the back panel 22. The lower region of the first connecting plate 11 is connected to the upper region of the second connecting plate 21.

[0036] In one alternative embodiment, the back panel 22 can be a glass back panel. Using a glass back panel is not only easy to clean, but also has high temperature resistance, corrosion resistance, and long service life. It is easier to clean and observe, and has significant advantages in terms of function, appearance, safety and environmental protection.

[0037] The first connecting plate 11 and the second connecting plate 12 can be made of the same material or different materials. Alternatively, the first connecting plate 11 can be made of the same material as the back panel of the main body 1 of the range hood, and the second connecting plate 12 can be made of the same material as the back panel 22.

[0038] A first connecting plate 11 is provided on the back of the main body 1 of the range hood, and a second connecting plate 21 is provided on the back panel assembly 2. During the production process, the main body 1 and the back panel assembly 2 are manufactured and transported independently to reduce the convenience of packaging and transporting each component. The range hood using the installation structure provided in this embodiment not only reduces the need for storage space but also reduces the space occupied during transportation. When the user assembles the product, the back panel assembly 2 is connected to the main body 1 via the second connecting plate 21, thus assembling them into a single unit. This design simplifies the installation steps, reduces installation time and complexity, and makes the installation process faster and more user-friendly.

[0039] To facilitate the positioning and connection of the first connecting plate 11 and the second connecting plate 21, in one optional configuration, such as Figure 2 As shown, the first connecting plate 11 is provided with positioning holes 1131 and first connecting holes 1132, and the second connecting plate 21 is provided with positioning pins 2131 and second connecting holes 2132. The number of positioning holes 1131 can be one or more, and the number of positioning pins 2131 is equal to the number of positioning holes 1131. Positioning holes 1131 and positioning pins 2131 are arranged opposite to each other. The number of first connecting holes 1132 can be multiple, and the number of second connecting holes 2132 is the same as the number of first connecting holes 1132. First connecting holes 1132 and second connecting holes 2132 are arranged opposite to each other, and positioning pins 2131 and positioning holes 1131, and first connecting holes 1132 and second connecting holes 2132, respectively form a pairing assembly.

[0040] When connecting the first connecting plate 11 and the second connecting plate 21, firstly, the positioning pin 2131 on the second connecting plate is inserted into the positioning hole 1131 on the first connecting plate 11 to initially position the main body 1 of the range hood and the back panel assembly 2. This reduces or even avoids movement and misalignment during subsequent connection operations, improves assembly accuracy, and reduces the difficulty of assembly operations. Positioning through the cooperation of the positioning pin 2131 and the positioning hole 1131 improves positioning accuracy and facilitates subsequent connection operations, thereby improving the tightness and stability of the installation structure. After initial positioning, threaded fasteners, such as screws, are used to sequentially pass through the second connecting hole 2131 and the first connecting hole 1132 to firmly connect the second connecting plate 21 and the first connecting plate 11 together. In this embodiment, locating pins 2131 are used for initial positioning, followed by connection with screws. The assembly process is simple and quick, enabling efficient assembly of the range hood and allowing the back panel assembly 2 to be more securely installed on the range hood body 1. Furthermore, the cooperation between the first connecting plate 11 and the second connecting plate 21 achieves a more robust connection between the back panel assembly 2 and the range hood body 1. This connection method is simple and effective, providing sufficient connection strength to withstand various forces that may be generated during the use of the range hood, such as vibration and wind pressure. Simultaneously, due to the special shape and connection position design of the first connecting plate 11 and the second connecting plate 21, the connected structure receives effective support in all directions, further enhancing the overall structural stability of the range hood.

[0041] like Figure 3 and Figure 4 As shown, to better fix the second connecting plate 21 of the backplate assembly 2 to the backplate 22, the structure of the second connecting plate 21 can be designed as an "N" shape. It is worth noting that the "N" shape here refers to the structural shape of the second connecting plate 21 being the same as or similar to an "N," not necessarily identical to an "N." The second connecting plate 21 includes a first connecting portion 211, a second connecting portion 212, and a third connecting portion 213 connected sequentially from bottom to top. The second connecting portion 212 extends forward from the upper edge of the first connecting portion 211, and the third connecting portion 213 extends upward from the front edge of the second connecting portion 212. During installation, the first connecting portion 211 connects to the rear side of the backplate 22, and the upper edge of the backplate 22 abuts against the lower surface of the second connecting portion 212. The first connecting portion 211, the second connecting portion 212, and the third connecting portion 213 can be fixedly connected or formed as a single piece using a molding process. Figure 4In the second connecting plate 21 shown, the first connecting portion 211, the second connecting portion 212, and the third connecting portion 213 are all flat plate structures. The first connecting portion 211 and the third connecting portion 213 both extend along a vertical plane, and their normals are both horizontal and parallel to each other. The first connecting portion 211 is located behind the third connecting portion 213. The second connecting portion 212 extends along a horizontal plane, and its normal is vertical. The first connecting portion 211 is parallel to the third connecting portion 213, and the first connecting portion 211 is perpendicular to the second connecting portion 212. The first connecting portion 211 connects to the rear of the second connecting portion 212, and the third connecting portion 213 connects to the front of the second connecting portion 212. The transition section between the first connecting portion 211 and the second connecting portion 212 can be an arc segment, and the transition section between the third connecting portion 213 and the second connecting portion 212 can also be an arc segment. The first connecting part 211 contacts the rear side of the back plate 22, and the second connecting part 212 contacts the top surface of the back plate 22. That is to say, both the first connecting part 211 and the second connecting part 212 are in contact with the back plate 22, resulting in a relatively large contact area between the second connecting plate 21 and the back plate 22 and relatively strong connection stability. Since the third connecting part 213 is located above the front end of the second connecting part 212, the second connecting part 212 and the third connecting part 213 form a receiving area. This receiving area is used to accommodate the first connecting plate 11. When the first connecting plate 11 and the second connecting plate 21 are connected by screws, this receiving area can be used to accommodate auxiliary connecting parts to reduce the length of the first connecting plate 11 and the screw protruding from the rear side of the back plate 22, or even prevent the first connecting plate 11 and the screw from protruding from the rear side of the back plate 22, thereby improving the flatness of the rear side of the range hood.

[0042] like Figure 4As shown, while fixing the second connecting plate 21 of the back panel assembly 2 to the back panel, it is also necessary to connect the back panel assembly 2 to the range hood body 1. Specifically, the second connecting plate of the back panel assembly 2 is connected to the first connecting plate 11 provided on the back of the range hood body 1. The structure of the first connecting plate 11 is designed as a first part 111, a second part 112, and a third part 113 connected sequentially from top to bottom. The first part 111, the second part 112, and the third part can be fixedly connected or are an integral structure manufactured by an integral molding process. The second part 112 is formed by extending forward from the lower edge of the first part 111, and the third part 113 is formed by extending downward from the front edge of the second part 112. During installation, the first part 111 is fixedly connected to the back of the range hood body 1, the second part 112 is connected to the lower part of the range hood body 1, and the third part 113 is connected to the part of the second connecting plate 21 that extends upward to the top of the back panel 22, which is the third connecting part 213 of the second connecting plate 21, and the third part 113 is connected to the rear side of the third connecting part 213. The "N"-shaped structure of the second connecting plate 21 and the multi-segment structure of the first connecting plate 11 enable the second connecting plate 21 to better adapt to the installation requirements of the back plate 22 and form a stable structural support. The first connecting plate 11 can better adapt to the installation requirements of the range hood body 1, further enhancing the connection strength between the back plate assembly 2 and the range hood body 1, providing greater installation flexibility and stability, and also providing some optimization space for the layout of the internal space of the range hood.

[0043] In some embodiments, the portion of the first connecting plate 11 connected to the rear side of the range hood body 1 and the portion of the second connecting plate 21 connected to the rear side of the back plate 22 are located on the same plane in the vertical direction. That is, the rear side of the first portion 111 of the first connecting plate 11 and the rear side of the first connecting portion 211 of the second connecting plate are both screens parallel to the vertical plane, and the rear side of the first portion 111 and the rear side of the first connecting portion 211 are coplanar. By aligning the first connecting plate 11 and the second connecting plate 21 in the vertical direction, it helps to ensure the regularity and stability of the entire installation structure, making the force transmission more uniform and reasonable, and ensuring that the back plate assembly 2 and the range hood body 1 are more stable and aesthetically pleasing when installed in the user's home. Since the rear side of the first connecting plate 11 and the rear side of the second connecting plate 21 are coplanar, after the range hood is installed in place, the rear side of the range hood (including the rear side of the first connecting plate 11 and the rear side of the second connecting plate 21) can have a relatively large contact area with the side of the installation area (e.g., the wall), thereby improving the installation stability of the range hood and reducing vibration during the use of the range hood.

[0044] like Figure 1 , Figure 3 , Figure 4As shown, in some embodiments of this example, the main body 1 of the range hood has a top plate 12 and a rear plate 13. An extension plate 121 extends upward from the rear edge of the top plate 12. The extension plate 121 and the top plate 12 are integral structures, formed by bending the upper end of the top plate 12. The extension plate 121 is located between the rear plate 13 and the first connecting plate 11. The rear plate 13 is connected to the extension plate 121. The extension plate 121 is located on the rear side of the rear plate 13. The extension plate 121 achieves a fixed connection between the top plate 12 and the rear plate 13, thereby enhancing the connection strength between the top plate 12 and the main body 1 of the range hood and improving the stability of the range hood during operation.

[0045] like Figure 2 and Figure 4 As shown, in some embodiments of this example, the first connecting plate 11 is further provided with a third connecting hole 1133, the rear plate 13 is provided with a fourth connecting hole 1321, and the extension plate 121 is provided with a fifth connecting hole 1211. A connector passes sequentially through the third connecting hole 1133, the fifth connecting hole 1211, and the fourth connecting hole 1321 to connect the first connecting plate 11 to both the extension plate 121 and the rear plate 13. The connector can be a screw, rivet, or other connecting structure. This design, through a multi-hole connection method, further enhances the connection strength between the first connecting plate 11 and the main body of the range hood 1, improving the stability of the installation.

[0046] In some embodiments of this example, the rear plate 13 includes an upper portion 131 and a lower portion 132, with a connecting portion 133 between the upper portion 131 and the lower portion 132. The connecting portion 133 extends from rear to front, with its rear edge connected to the lower edge of the upper portion 131 and its front edge connected to the upper edge of the lower portion 132. The lower portion 132 is connected to the extension plate 121 and is located on the front side of the extension plate 121. After the first connecting plate 11 is connected to the rear side of the lower portion 132, the thickness of the first connecting plate 11 and the connecting portion 133 are adapted to the thickness of the connecting portion 133. This design, by providing the connecting portion 133 on the rear plate 13, provides greater installation space and flexibility, allowing the first connecting plate 11 to be better installed on the rear plate 13, ensuring the stability of the installation. The segmented design of the rear plate 13, while ensuring structural strength, also provides more flexibility and convenience for connection with other components. The multi-component connection method further strengthens the overall integrity of the entire smoke machine structure. By connecting the first connecting plate 11 to the rear plate 13 and the extension plate 121, the connection between the back panel assembly 2 and the main body 1 of the range hood is not limited to a simple connection at the back, but forms a more complex and stable connection network. During the operation of the range hood, both the suction force from above and the wind pressure from the rear can be evenly distributed to the entire range hood structure through this connection network, avoiding structural damage or deformation caused by local stress concentration.

[0047] This application also provides a range hood, which includes the installation structure provided in the above embodiments. The main body 1 of the range hood, as the core frame of the entire range hood, has several key parts. For example... Figure 5 and Figure 6 As shown, the range hood body 1 has a top plate 12 and a rear plate 13. The top plate 12 of the range hood is provided with an air intake 122 and an oil drip hole 123, which are connected to the air collection chamber of the range hood body 1. During the operation of the range hood, the air intake 122 is responsible for sucking in the oil fumes and hot air generated during cooking, while the oil drip hole 123 is used to collect and discharge the oil droplets condensed during the suction process. By connecting these components to the air collection chamber, the oil fumes and oil droplets can be effectively concentrated and processed, improving the working efficiency and cleaning effect of the range hood. The range hood also includes an oil cup 3, which is connected below the top plate 12, with the opening of the oil cup 3 facing the oil drip hole 123. The oil cup 3 is located on the front side of the portion of the first connecting plate 11 located below the range hood body 1 and the portion of the second connecting plate 21 located above the back plate 22. This design achieves efficient air intake and grease collection for the range hood by setting an air intake 122 and an oil drip hole 123 on the top plate 12 and an oil cup 3 below the top plate 12. Simultaneously, by placing the oil cup 3 on the front side of the first connecting plate 11 and the second connecting plate 21, it ensures stable installation and ease of use. This layout design considers both the relative positional relationship between the oil cup 3 and the oil drip hole 123 to ensure that grease falls accurately into the oil cup 3, and the spatial relationship between the oil cup 3 and the mounting structure of the back panel assembly 2. The installation and removal of the oil cup 3 are not obstructed by the first connecting plate 11 and the second connecting plate 21, facilitating daily cleaning and maintenance for users.

[0048] When assembling the range hood, firstly, install the first connecting plate 11 onto the range hood body 1, ensuring its accurate positioning and secure connection. Then, initially position the back plate assembly 2 using the positioning pin 2131 and positioning hole 1131. During positioning, carefully check the relative positional relationship between the back plate 22 and other components of the range hood body 1. When tightening screws, tighten them according to the specified torque value to avoid loosening or damage to parts due to excessive or insufficient torque. For the connection with the rear plate 13 and extension plate 121, ensure the connectors pass smoothly through each connection hole in sequence, and check the tightness of the connection after completion.

[0049] In summary, this utility model provides an installation structure for a backplate assembly and a range hood incorporating it. By optimizing the structural design of the first connecting plate 11 and the backplate assembly 2, a stable connection between the backplate assembly 2 and the range hood body 1 is achieved, ensuring the stability of the installation and the reliability of its use. Simultaneously, the structural optimization of the range hood body 1 and the backplate assembly 2 provides greater installation space and flexibility, making installation more convenient and faster.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A mounting structure of a back plate assembly for a smoke machine, characterized by, The application relates to a smoke machine body (1) provided with a first connecting plate (11) extending downwards to the lower side of the smoke machine body (1); a back plate assembly (2) provided with a second connecting plate (21) and a back plate (22), the second connecting plate (21) being connected to the back side of the back plate (22) and extending upwards to the upper side of the back plate (22), the part of the second connecting plate (21) extending upwards out of the back plate assembly (2) being connected to the part of the first connecting plate (11) extending downwards out of the smoke machine body (1). The first connecting plate (11) is provided with a positioning hole (1131) and a first connecting hole (1132), the second connecting plate (21) is provided with a positioning pin (2131) and a second connecting hole (2132), the positioning pin (2131) is connected to the positioning hole (1131), and the first connecting plate (11) and the second connecting plate (21) are connected through the first connecting hole (1132) and the second connecting hole (2132). The second connecting plate (21) is in an "N" shape structure and comprises a first connecting part (211), a second connecting part (212) and a third connecting part (213) connected in sequence, the second connecting part (212) is formed by extending forward from the upper edge of the first connecting part (211), the third connecting part (213) is formed by extending upwards from the front edge of the second connecting part (212), the first connecting part (211) is connected to the back side of the back plate (22), and the upper edge of the back plate (22) abuts against the lower surface of the second connecting part (212).

2. The mounting structure of the backboard assembly according to claim 1, wherein The part of the first connecting plate (11) extending downwards to the lower side of the smoke machine body (1) is connected to the back side of the third connecting part (213).

3. The mounting structure of the backboard assembly according to claim 1, wherein The first connecting plate (11) comprises a first part (111), a second part (112) and a third part (113) connected in sequence, the second part (112) is formed by extending forward from the lower edge of the first part (111), the third part (113) is formed by extending downwards from the front edge of the second part (112), the first part (111) is connected to the back of the smoke machine body (1), the second part (112) is connected to the lower side of the smoke machine body (1), and the third part (113) is connected to the part of the second connecting plate (21) extending upwards to the upper side of the back plate (22).

4. The mounting structure of the backboard assembly according to claim 3, wherein The part of the first connecting plate (11) connected to the back plate of the smoke machine body (1) and the part of the second connecting plate (21) connected to the back plate assembly (2) are located in the same plane in the vertical direction.

5. The mounting structure of the backboard assembly according to claim 1, wherein The smoke machine body (1) is provided with a top plate (12) and a back plate (13), the back edge of the top plate (12) extends upwards to form an extension plate (121), the back plate (13) is connected to the extension plate (121), and the extension plate (121) is located at the back side of the back plate (13).

6. The mounting structure of the backboard assembly according to claim 1, wherein ​ 7. The mounting structure of the backboard assembly according to claim 1, wherein ​ 8. The mounting structure of the backboard assembly according to claim 7, wherein Further comprising a connecting piece, the first connecting plate (11) is further provided with a third connecting hole (1133), the back plate (13) is provided with a fourth connecting hole (1321), the extension plate (121) is provided with a fifth connecting hole (1211), the connecting piece passes through the third connecting hole (1133), the fifth connecting hole (1211) and the fourth connecting hole (1321) in sequence to connect the first connecting plate (11), the extension plate (121) and the back plate (13).

9. The mounting structure of the backboard assembly according to claim 8, wherein The back plate (13) comprises an upper part (131) and a lower part (132), and an adapter (133) is arranged between the upper part (131) and the lower part (132), the adapter (133) extends from back to front, the rear edge of the adapter (133) is connected with the lower edge of the upper part (131), the front edge of the adapter (133) is connected with the upper edge of the lower part (132), the lower part (132) is connected with the extension plate (121) and located at the front side of the extension plate (121), and the first connecting plate (11) is connected to the rear side of the lower part (132).

10. A hood having the mounting structure of the back plate assembly according to any one of claims 1 to 9, characterized by The smoke machine body (1) is provided with a wind collecting cavity, the top plate (12) of the smoke machine body (1) is provided with a suction port (122) and a oil dripping hole (123), the suction port (122) and the oil dripping hole (123) are communicated with the wind collecting cavity; further comprising an oil cup (3), the oil cup (3) is connected below the top plate (12), the opening of the accommodating cavity of the oil cup (3) faces the oil dripping hole (123), and the oil cup (3) is located at the front side of the connecting area of the first connecting plate (11) and the second connecting plate (21).

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