Exhaust hood nozzle mounting structure and exhaust hood

Abstract

The application discloses an oil fume extractor nozzle mounting structure and an oil fume extractor. The oil fume extractor nozzle mounting structure comprises a frame and a nozzle. The inside of the frame is suitable for accommodating a fan. The nozzle is suitable for penetrating through the frame from the outside of the frame so that the air outlet end of the nozzle extends into the inside of the frame. The air inlet end of the nozzle is exposed to the outside of the frame and is suitable for being connected with a steam generator. In the technical scheme of the application, the nozzle penetrates through the frame from the outside of the frame so that the air outlet end of the nozzle extends into the inside of the frame, which means that the nozzle can be pulled out in the opposite direction. When the nozzle needs to be disassembled for after-sales maintenance, the oil fume extractor does not need to be disassembled, and the disassembly and assembly of the nozzle can be realized conveniently and quickly.

Description

Technical Field

[0001] This application relates to the field of range hood technology, and in particular to a range hood nozzle installation structure and a range hood. Background Technology

[0002] A range hood includes a connecting frame and a fume hood. The fume hood is located below the frame, and a fan is installed on the frame. The fan's casing and impeller are located inside the frame. The rotation of the impeller creates negative pressure, thereby achieving the extraction and exhaust of cooking fumes.

[0003] After a period of use, the impeller of a range hood will accumulate grease. Related technologies utilize steam cleaning devices to clean the impeller. These devices include nozzles that deliver steam into the interior of the frame, allowing the steam to contact the impeller and remove some of the grease. Currently, most nozzles are installed in the volute housing. Therefore, during after-sales maintenance, disassembling and reassembling the nozzle requires disassembling the frame and volute, making the process complex. Utility Model Content

[0004] This application aims to at least partially solve one of the technical problems in the related art. To this end, this application proposes a range hood spray pipe.

[0005] To achieve the above objectives, this application discloses a range hood nozzle mounting structure, which includes:

[0006] A frame, the interior of which is adapted to accommodate a wind turbine; and

[0007] A nozzle is adapted to pass through the frame from the outside of the frame such that the outlet end of the nozzle extends into the interior of the frame, and the inlet end of the nozzle is exposed outside the frame for connection to a steam generator.

[0008] In some embodiments of this application, the nozzle is fixed to the frame.

[0009] In some embodiments of this application, the range hood nozzle mounting structure further includes a mounting base, the nozzle is connected to the mounting base, and the mounting base is connected to the frame.

[0010] In some embodiments of this application, the mounting base includes a first support member and a second support member connected to each other, the second support member being raised relative to the first support member and clamping the nozzle.

[0011] In some embodiments of this application, the second support member is an integrally formed structure for bending and clamping the nozzle.

[0012] In some embodiments of this application, the first support member is provided with a mounting groove, the second support member is disposed in the mounting groove, and the portions of the second support member located on opposite sides of the nozzle are engaged between the groove walls on opposite sides of the mounting groove.

[0013] In some embodiments of this application, the second support member has a foot portion on each of the opposite sides of the nozzle, one side of the foot portion abutting the bottom of the mounting groove, and the first support member has a flange portion that holds the foot portion on the other side away from the bottom of the groove.

[0014] In some embodiments of this application, the first support member is provided with a first fastening hole, the support leg is provided with a second fastening hole, and the frame is provided with a third fastening hole. The first fastening hole, the second fastening hole, and the third fastening hole are opposite to each other and adapted to allow fasteners to pass through for fastening.

[0015] In some embodiments of this application, the frame is provided with a through hole having a first hole portion and a second hole portion that are connected to each other. The diameter of the first hole portion is larger than the diameter of the second hole portion. The nozzle is adapted to pass through the frame from the first hole portion and is adapted to engage with the second hole portion when the mounting base and the frame are connected.

[0016] In some embodiments of this application, the mounting base is adapted to be connected to the frame by at least two fasteners, wherein the pairs of lines connecting the two fasteners and the second hole form a triangle.

[0017] In some embodiments of this application, the nozzle is adapted to pass through the frame from the top of the frame so that the outlet end of the nozzle extends into the interior of the frame.

[0018] The second aspect of this application discloses a range hood, which includes the above-described range hood nozzle mounting structure.

[0019] In some embodiments of this application, the range hood includes a fan, the fan includes a impeller and a volute, the impeller is disposed inside the volute, and the volute is disposed inside the frame;

[0020] And / or, the range hood includes a steam generator, which is located outside the frame and mounted on the top of the frame, and the outlet of the steam generator is connected to the air inlet of the spray pipe via a connecting pipe.

[0021] In this technical solution, the nozzle passes through the frame from the outside, allowing the nozzle's outlet end to extend into the frame. This means the nozzle can be pulled out in the opposite direction. When the nozzle needs to be disassembled for after-sales maintenance, it can be disassembled and installed without disassembling the range hood, which is convenient and quick.

[0022] Other advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other designs can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 These are schematic diagrams of range hoods in some embodiments;

[0025] Figure 2 for Figure 1 Enlarged view marked with Ⅰ in the middle;

[0026] Figure 3 This is a cross-sectional view of the range hood in some embodiments;

[0027] Figure 4 for Figure 3 Enlarged view marked II in the middle;

[0028] Figure 5 The diagram shows a range hood in some embodiments (the nozzle is omitted);

[0029] Figure 6 for Figure 5 Enlarged view marked III.

[0030] Explanation of icon numbers:

[0031] Frame 100, through hole 110, first hole 111, second hole 112, third fastening hole 120, fan 200, impeller 210, volute 220, fume hood 300, nozzle 400, air inlet 410, air outlet 420, mounting base 500, first support 510, mounting slot 511, flange 512, second support 520, support leg 521, second fastening hole 522, connecting pipe 600, steam generator 700.

[0032] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application 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.

[0035] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0037] The first aspect of this application discloses a range hood nozzle mounting structure, which, in some embodiments, is combined with... Figures 1 to 4 As shown, the range hood nozzle mounting structure includes a frame 100 and a nozzle 400. The interior of the frame 100 is adapted to accommodate the impeller 210. The nozzle 400 is adapted to pass through the frame 100 from the outside so that the air outlet 420 of the nozzle 400 extends into the interior of the frame 100. The air inlet 410 of the nozzle 400 is exposed on the outside of the frame 100 to be adapted to connect with the steam generator 700.

[0038] The nozzle 400 passes through the frame 100 from the outside, so that the air outlet 420 of the nozzle 400 extends into the inside of the frame 100. This means that the nozzle 400 can be pulled out in the opposite direction. When the nozzle 400 needs to be disassembled for after-sales maintenance, the nozzle 400 can be disassembled without disassembling the range hood, which is convenient and quick.

[0039] The following description uses a range hood as an example. The range hood includes a fume hood 300, a frame 100, and a fan 200. The frame 100 and fume hood 300 are connected and fixed. The fume hood 300 is located below the frame 100 and is used for fume extraction. The frame 100 is located above the fume hood 300 and is used to mount the fan 200. The fan 200 includes a impeller 210 and a volute 220. The impeller 210 is located inside the volute 220, which is located inside the frame 100. When the fan 200 is working, the impeller 210 rotates, creating negative pressure to extract the fumes. The fumes first enter the fume hood 300 and then enter the interior of the frame 100. Inside the frame 100, the fumes flow into the volute 220 and are then discharged to the outside by the impeller 210. After the range hood has been used for a period of time, grease will adhere to the impeller 210, which will affect the performance of the range hood. Therefore, the range hood in the relevant technology is equipped with a steam cleaning device, which includes a steam generator 700 and a nozzle 400. The steam generator 700 is a component for generating steam, including but not limited to an electric heating steam generator (an electric heating element converts electrical energy into heat energy to heat water to form steam) and a gas-fired steam generator (a burner burns fuel to heat water to form steam). The outlet of the steam generator 700 is connected to the air inlet 410 of the nozzle 400, which can be a direct connection or an indirect connection. Thus, the steam generator 700 discharges... Steam can be delivered to the nozzle 400 and then ejected from the outlet 420 of the nozzle 400. The outlet 420 of the nozzle 400 is located inside the frame 100. The steam ejected from the outlet 420 of the nozzle 400 can contact the impeller 210. For example, if the outlet 420 of the nozzle 400 extends into the volute 220, the steam ejected from the outlet 420 of the nozzle 400 can contact the impeller 210 more quickly. As the impeller 210 rotates, it can remove oil stains on the impeller 210 to a certain extent, thus cleaning the impeller 210. Of course, it can also clean the volute 220 to a certain extent.

[0040] Currently, the nozzle 400 is mostly installed on the volute 220. Since the volute 220 is located inside the frame 100, when the nozzle 400 needs to be disassembled for after-sales maintenance, the entire range hood must be removed and disassembled before the nozzle 400 can be installed, which is extremely cumbersome. Therefore, this application proposes an improvement to reduce the difficulty of disassembling and assembling the nozzle 400.

[0041] Combination Figures 1 to 4 As shown, in this embodiment, the nozzle 400 is adapted to pass through the frame 100 from the outside so that the air outlet end 420 of the nozzle 400 extends into the interior of the frame 100. It is precisely because the nozzle 400 is installed in this way that the nozzle 400 can be pulled out in the opposite direction. For example, if the nozzle 400 passes through the frame 100 from the outside in a first direction so that the air outlet end 420 of the nozzle 400 extends into the interior of the frame 100, then the nozzle 400 can be pulled out in a second direction and disassembled relative to the frame 100. In this way, when the nozzle 400 needs to be disassembled and installed during after-sales maintenance, the nozzle 400 can be easily disassembled and installed without disassembling the range hood, which greatly reduces the difficulty of disassembling and installing the nozzle 400. When the nozzle 400 passes through the frame 100 from the outside and the outlet end 420 extends into the interior of the frame 100, the inlet end 410 of the nozzle 400 needs to be exposed outside the frame 100 to facilitate connection with the steam generator 700 to receive steam. Understandably, after the nozzle 400 is installed, the outlet end 420 needs to reach a predetermined position. This predetermined position can be determined according to the actual needs of the product, as long as it ensures that the steam ejected from the outlet end 420 of the nozzle 400 can reach the impeller 210 and / or the volute 220. For example, the outlet end 420 of the nozzle 400 can extend into the volute 220 (from the inlet of the volute 220), thus ensuring that the steam quickly contacts the impeller 210.

[0042] In some embodiments, combined with Figures 1 to 4 As shown, the nozzle 400 is fixed to the frame 100, meaning the nozzle 400 and the frame 100 are connected and fixed by a detachable connection method such as screws. It can be understood that the fan 200 is mounted on the frame 100 and the impeller 210 is located inside the frame 100. The relative position between the impeller 210 and the frame 100 is fixed. Since the nozzle 400 needs to pass through the frame 100, it is more convenient to fix it to the frame 100 after it passes through, thus fixing the relative position between the impeller 210, the frame 100, and the nozzle 400.

[0043] To facilitate fixing the nozzle 400 to the frame 100, in some embodiments, combined with Figures 1 to 4 As shown, the range hood nozzle mounting structure also includes a mounting base 500, the nozzle 400 is connected to the mounting base 500, and the mounting base 500 is connected to the frame 100.

[0044] The frame 100 generally has a relatively thin wall thickness. For example, the frame 100 is a cubic structure formed by connecting multiple flat plates, while the nozzle 400 has a long, tubular structure. After the nozzle 400 passes through the frame 100, it is not easy to directly connect and fix the nozzle 400 and the frame 100. Therefore, in this embodiment, the range hood mounting structure also includes a mounting base 500. The mounting base 500 is a separate component from the nozzle 400 and the frame 100. The mounting base 500 can be designed to facilitate connection and fixation with the nozzle 400, and it can also be designed to facilitate connection and fixation with the frame 100. Through the setting of the mounting base 500, the installation between the nozzle 400 and the frame 100 can be conveniently realized.

[0045] In some embodiments, combined with Figure 2 As shown, the mounting base 500 includes a first support member 510 and a second support member 520 connected to each other, the second support member 520 being raised relative to the first support member 510 and clamping the nozzle 400.

[0046] The first support member 510 and the second support member 520 are separate components connected and fixed by a connecting means. The second support member 520 protrudes relative to the first support member 510 and clamps the nozzle 400. The second support member 520 clamps the nozzle 400 to facilitate the fixation of the nozzle 400. Since the second support member 520 protrudes relative to the first support member 510, there is a large contact area between the second support member 520 and the nozzle 400 along the extension direction of the nozzle 400, which improves the fixing effect of the nozzle 400.

[0047] For example, the first support member 510 and the second support member 520 can be made of metal, or other materials. The second support member 520 is a one-piece molded structure. The second support member 520 can be bent to surround the nozzle 400 and then clamp the nozzle 400 (the parts of the second support member 520 on opposite sides of the nozzle 400 can clamp the nozzle 400 by bringing them closer together). This method is more convenient and reliable for fixing long, tubular structures. After the second support member 520 clamps and fixes the nozzle 400, the second support member 520 and the first support member 510 are then connected and fixed. In this way, the mounting base 500 and the nozzle 400 are assembled into a complete detachable module. The first support member 510 and the second support member 520 can be connected and fixed together by methods such as welding, fastening, or screw connection. When the second support member 520 and the first support member 510 are connected, the second support member 520 is constrained, ensuring the clamping effect on the nozzle 400.

[0048] In some embodiments, combined with Figure 2As shown, the first support member 510 is provided with a mounting groove 511, and the second support member 520 is provided in the mounting groove 511. The portions of the second support member 520 located on opposite sides of the nozzle 400 are engaged between the groove walls on opposite sides of the mounting groove 511.

[0049] Specifically, when the second support member 520 clamps the nozzle 400, in order to fix the nozzle 400, the second support member 520 needs to generate a certain degree of clamping force on the nozzle 400. Since the forces act in opposite directions, the nozzle 400 also generates a counter-clamping force on the second support member 520. This counter-clamping force makes the second support member 520 tend to loosen the nozzle 400. To prevent the second support member 520 from loosening the nozzle 400, in this embodiment, the first support member 510 is designed with... With the placement groove 511 provided, when assembling the second support member 520 and the first support member 510, the second support member 520 needs to be placed in the placement groove 511. At this time, the portions of the second support member 520 located on opposite sides of the nozzle 400 are locked between the groove walls on opposite sides of the placement groove 511. This restricts the second support member 520 from releasing the nozzle 400, ensuring that the second support member 520 clamps the nozzle 400, laying the foundation for further fastening between the second support member 520 and the first support member 510.

[0050] For example, combining Figure 2 As shown, the portions of the second support member 520 located on opposite sides of the nozzle 400 are designated as part A and part B. Parts A and B are brought close together to clamp the nozzle 400. Then, the second support member 520 is placed into the mounting groove 511. Part A abuts against the left wall of the mounting groove 511, and part B abuts against the right wall of the mounting groove 511. This restricts the second support member 520 and prevents it from loosening from the nozzle 400.

[0051] In some embodiments, combined with Figure 2 As shown, the second support member 520 has a foot portion 521 on each of the opposite sides of the nozzle 400. One side of the foot portion 521 abuts against the bottom of the mounting groove 511. The first support member 510 is provided with a flange portion 512, which holds the foot portion 521 on the other side away from the bottom of the groove.

[0052] As described above, the mounting base 500 and the nozzle 400 can be assembled into a detachable module. To improve the connection stability between the first support member 510 and the second support member 520, in this embodiment, the foot 521 abuts against the bottom of the mounting groove 511 to increase the contact area. Furthermore, a flange 512 is provided on the first support member 510 to hold the foot 521 on the side opposite to the bottom of the groove, for example... Figure 2As shown, the bottom surface of the support leg 521 abuts against the bottom of the groove, and the top surface is held in place by the flange 512. This confines the second support member 520 within the mounting groove 511, improving the connection stability between the first support member 510 and the second support member 520. Before the mounting base 500 is connected to the frame 100, the first support member 510 and the second support member 520 are not easily separated, ensuring that the second support member 520 holds the nozzle 400 securely. The overall detachable assembly and disassembly of the mounting base 500 and the nozzle 400 are more reliable. It is understood that the flange 512 can be formed by bending it after the second support member 520 is placed into the mounting groove 511.

[0053] In some embodiments, combined with Figures 1 to 6 As shown, the first support member 510 is provided with a first fastening hole, the support leg 521 is provided with a second fastening hole 522, and the frame 100 is provided with a third fastening hole 120. The first fastening hole, the second fastening hole 522 and the third fastening hole 120 are opposite to each other and are adapted to allow fasteners to pass through for fastening.

[0054] The fasteners can be threaded fasteners. The first fastening hole, the second fastening hole 522, and the third fastening hole 120 are all threaded holes. The fasteners can be tightened into these holes to connect and fix the frame 100, the first support member 510, and the second support member 520. This arrangement allows for simultaneous tightening of the first and second support members 510 and 520, and also secures the mounting base 500 and the nozzle 400 to the frame 100. This eliminates the need for separate fastening holes and fasteners for the tightening of the first and second support members 510 and the fastening of the mounting base 500 and the frame 100, simplifying the structure. It is understood that there can be multiple first fastening holes (two or more), and correspondingly, multiple second fastening holes 522 and multiple third fastening holes 120.

[0055] In some embodiments, combined with Figure 5 and Figure 6 As shown, the frame 100 is provided with a through hole 110, and the nozzle 400 passes through the through hole 110. The through hole 110 has a first hole portion 111 and a second hole portion 112 that are connected. The diameter of the first hole portion 111 is larger than the diameter of the second hole portion 112. The nozzle 400 is adapted to pass through the frame 100 through the first hole portion 111 and is adapted to be engaged in the second hole portion 112 when the mounting base 500 and the frame 100 are connected.

[0056] With the through hole 110 provided, the nozzle 400 can pass through the through hole 110 from the outside of the frame 100 so that the outlet end 420 of the nozzle 400 extends into the inside of the frame 100. It is understandable that when the difference between the diameter of the through hole 110 and the diameter of the nozzle 400 is greater, the nozzle 400 is easier to pass through the through hole 110. However, the stability of the nozzle 400 becomes relatively worse after it is fixed. Therefore, in this embodiment, the through hole 110 has a first hole portion 111 and a second hole portion 112 that are connected. The diameter of the first hole portion 111 is larger than the diameter of the second hole portion 112. The nozzle 400 can pass through the frame 100 through the first hole portion 111, which facilitates the installation and removal of the nozzle 400. When the mounting base 500 and the frame 100 are connected, the nozzle 400 is inserted into the second hole portion 112. The second hole portion 112 forms a limit on the nozzle 400. The installation stability of the nozzle 400 is improved by the cooperation of the second hole portion 112.

[0057] Specifically, in combination Figure 5 and Figure 6 As shown, the mounting base 500 is adapted to be connected to the frame 100 by at least two fasteners, and the pairs of lines connecting the two fasteners and the second hole 112 form a triangle.

[0058] For example, the frame 100 is provided with two third fastening holes 120. The lines connecting the centers of the two third fastening holes 120 and the center of the second hole 112 form a triangle. The first support member 510 is provided with two corresponding first fastening holes, and the second support member 520 is provided with two corresponding second fastening holes 522. By tightening fasteners into the first fastening holes, the second fastening holes 522 and the third fastening holes 120, the positions of the two fasteners and the second hole 112 form a triangular arrangement, which improves the connection stability between the mounting base 500 and the frame 100, thereby improving the stability of the nozzle 400.

[0059] In some embodiments, combined with Figure 1As shown, the nozzle 400 is adapted to pass through the top of the frame 100 so that the air outlet 420 of the nozzle 400 extends into the interior of the frame 100. That is, the nozzle 400 passes through the frame 100 from the outside and from the top of the frame 100, meaning the through hole 110 is located at the top of the frame 100. This allows the air inlet 410 of the nozzle 400 to be exposed at the top of the frame 100. The top of the frame 100 is far from the user, and there is sufficient space above the top of the frame 100 to accommodate the nozzle 400, making the air inlet 410 of the nozzle 400 difficult for the user to observe. When it is necessary to disassemble or assemble the nozzle 400, it can be removed directly from bottom to top without removing the range hood from the wall, further reducing the difficulty of disassembling and assembling the nozzle 400. Understandably, in some cases, when a range hood is installed in the kitchen, the top of the frame 100 can be hidden inside the kitchen ceiling or cabinet. In such cases, when disassembling or assembling the spray pipe 400, the cabinet or ceiling can be opened for disassembly or assembly, without having to remove the entire range hood.

[0060] The second aspect of this application discloses a range hood, combined with... Figures 1 to 6 As shown, the range hood includes the above-mentioned range hood nozzle mounting structure. The range hood nozzle mounting structure includes a frame 100 and a nozzle 400. The interior of the frame 100 is adapted to accommodate the impeller 210. The nozzle 400 is adapted to pass through the frame 100 from the outside of the frame 100 so that the air outlet end 420 of the nozzle 400 extends into the interior of the frame 100. The air inlet end 410 of the nozzle 400 is exposed on the outside of the frame 100 to be adapted to connect with the steam generator 700.

[0061] The nozzle 400 passes through the frame 100 from the outside, allowing the outlet end 420 of the nozzle 400 to extend into the interior of the frame 100. This means the nozzle 400 can be pulled out in the opposite direction. During after-sales maintenance, when the nozzle 400 needs to be disassembled, it can be removed and installed without disassembling the range hood, making it convenient and quick. It is understood that the range hood nozzle installation structure of this embodiment adopts the technical solution of the above embodiment, and therefore possesses at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0062] In some embodiments, the range hood includes a steam generator 700. The outlet of the steam generator 700 is connected to the air inlet 410 of the nozzle 400 via a connecting pipe 600. By using the connecting pipe 600, the outlet of the steam generator 700 and the air inlet 410 of the nozzle 400 do not need to be in direct contact, allowing for more flexible arrangement of their relative positions. Generally, the connecting pipe 600 is a flexible hose, facilitating deformation and bending. Optionally, the steam generator 700 is located outside the frame 100 to avoid being affected by cooking fumes, and is mounted on the top of the frame 100 with sufficient space for arrangement, thus facilitating its connection with the air inlet 410 of the nozzle 400 exposed on the top of the frame 100.

[0063] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A range hood nozzle installation structure, characterized in that, The range hood nozzle mounting structure includes: A frame (100), the interior of which is adapted to accommodate a wind turbine (210); and A nozzle (400) is adapted to pass through the frame (100) from the outside of the frame (100) such that the outlet end (420) of the nozzle (400) extends into the interior of the frame (100), and the inlet end (410) of the nozzle (400) is exposed outside the frame (100) to be adapted for connection with a steam generator (700).

2. The range hood nozzle installation structure as described in claim 1, characterized in that, The nozzle (400) is fixed to the frame (100).

3. The range hood nozzle installation structure as described in claim 2, characterized in that, The range hood nozzle mounting structure also includes a mounting base (500), the nozzle (400) is connected to the mounting base (500), and the mounting base (500) is connected to the frame (100).

4. The range hood nozzle installation structure as described in claim 3, characterized in that, The mounting base (500) includes a first support (510) and a second support (520) connected to each other, the second support (520) being raised relative to the first support (510) and clamping the nozzle (400).

5. The range hood nozzle installation structure as described in claim 4, characterized in that, The second support member (520) is an integrally formed structure for bending and clamping the nozzle (400).

6. The range hood nozzle installation structure as described in claim 5, characterized in that, The first support member (510) is provided with a mounting groove (511), the second support member (520) is provided in the mounting groove (511), and the portion of the second support member (520) located on the opposite sides of the nozzle (400) is engaged between the groove walls on the opposite sides of the mounting groove (511).

7. The range hood nozzle installation structure as described in claim 6, characterized in that, The second support member (520) has a foot (521) on each side of the nozzle (400). One side of the foot (521) abuts against the bottom of the mounting groove (511). The first support member (510) has a flange (512) that holds the foot (521) away from the bottom of the groove.

8. The range hood nozzle installation structure as described in claim 7, characterized in that, The first support member (510) is provided with a first fastening hole, the support leg (521) is provided with a second fastening hole (522), and the frame (100) is provided with a third fastening hole (120). The first fastening hole, the second fastening hole (522) and the third fastening hole (120) are opposite to each other and adapted to allow fasteners to pass through for fastening.

9. The range hood nozzle installation structure as described in claim 3, characterized in that, The frame (100) is provided with a through hole (110), the through hole (110) having a first hole (111) and a second hole (112) that are connected to each other, the diameter of the first hole (111) being larger than the diameter of the second hole (112), the nozzle (400) being adapted to pass through the frame (100) through the first hole (111) and being adapted to engage with the second hole (112) when the mounting base (500) and the frame (100) are connected.

10. The range hood nozzle installation structure as described in claim 9, characterized in that, The mounting base (500) is adapted to be connected to the frame (100) by at least two fasteners, the two fasteners and the pairwise lines connecting the second hole (112) forming a triangle.

11. The range hood nozzle installation structure as described in claim 1, characterized in that, The nozzle (400) is adapted to pass through the frame (100) from the top of the frame (100) so that the outlet end (420) of the nozzle (400) extends into the interior of the frame (100).

12. A range hood, characterized in that, Includes the range hood nozzle mounting structure as described in any one of claims 1 to 11.

13. The range hood as described in claim 12, characterized in that, The range hood includes a fan (200), the fan (200) includes a impeller (210) and a volute (220), the impeller (210) is disposed inside the volute (220), and the volute (220) is disposed inside the frame (100); And / or, the range hood includes a steam generator (700), which is located outside the frame (100) and mounted on the top of the frame (100), and the outlet of the steam generator (700) is connected to the air inlet (410) of the nozzle (400) via a connecting pipe (600).

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