Range hood with built-in water box

Abstract

The utility model relates to a kind of range hood with built-in water box, comprising: cabinet, including panel support, the panel support has installation port on it;Water box assembly, including being located in the water box seat of the cabinet and the water box body that can be push-pull and be located in the water box seat;The water box seat is fixed relative to the cabinet by mounting bracket, the installation port of the panel support has the first folding edge that is folded and extends towards cabinet, the front end port of the water box seat is located the rear side of the installation port perimeter of the panel support, and the inner peripheral wall of this front end port of the water box seat has the limit card slot that caliber expands outward, the first folding edge is embedded in the limit card slot. Advantage lies in: water box seat is conveniently installed and centered, and installation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a range hood with a built-in water box. Background Technology

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. As the operating time of a range hood increases, the amount of grease and grime accumulates inside, especially in the fan system, necessitating regular cleaning. Most current range hoods are equipped with self-cleaning devices. These devices primarily rely on steam or water cleaning, or heating to enhance the fluidity of the grease, which, combined with the fan's rotation, removes the grease from the hood body. Steam and water are typically sourced from a combination of a water pump and a heater, requiring the installation of heating elements and piping within the range hood system. Heating methods primarily use heating devices such as electric heating wires, applied to the volute or impeller to thermally dissolve the grease. In existing self-cleaning systems for range hoods, the water or liquid medium source is usually an external water cup or tank, which is inconvenient for users, takes up storage space, and is difficult to manage.

[0003] Chinese utility model patent application CN202020785742.0 discloses a range hood with a built-in water box assembly. The range hood has a built-in self-cleaning system, which includes a water box assembly embedded in the side wall structure of the range hood body. Specifically, the water box assembly is located in a groove in the side wall between the front bottom wall of the frame and the front wall of the head unit.

[0004] However, existing range hoods with built-in water boxes still have some shortcomings: Generally speaking, built-in water boxes are convenient for adding water and often adopt a pull-out water box structure. In order to ensure smooth feeding of the water box body, a water box seat that matches the water box body is required. However, the installation problem of this built-in water box seat is quite troublesome. When installing the water box seat, the installation port on the front panel bracket of the casing and the front port of the water box seat need to be strictly aligned. Since the front end of the water box seat is not suitable for fastening to the panel bracket with screws, the alignment is not good, the assembly process is cumbersome, and the assembly efficiency is low.

[0005] Therefore, existing range hoods with built-in water boxes still need further improvement. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a range hood with a built-in water box that is easy to install and align, and has high installation efficiency, in light of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a range hood with a built-in water box, comprising:

[0008] The housing includes a panel bracket having a mounting port;

[0009] The water tank assembly includes a water tank seat disposed within the housing and a water tank body disposed in the water tank seat in a push-pull manner;

[0010] The water box base is fixed relative to the housing by a mounting bracket. The mounting opening of the panel bracket has a first folded edge extending inward toward the housing. The front port of the water box base is located on the rear side of the periphery of the mounting opening of the panel bracket, and the inner peripheral wall of the front port of the water box base has a limiting groove with an outwardly expanding diameter. The first folded edge is embedded in the limiting groove.

[0011] To further address the potential for the water tank holder to shift along the front-to-back direction and ensure its precise installation position, a limiting step is formed on the rear side of the limiting groove on the inner peripheral wall of the front port of the water tank holder. The rear end of the first folded edge abuts against this limiting step. The contact between the limiting step and the rear end of the first folded edge limits the maximum forward movement of the water tank holder, preventing it from shifting and falling off due to vibration or operation. Furthermore, this provides a clear mechanical stop for the final installation position of the water tank holder, ensuring consistency in each assembly and improving production quality.

[0012] To address the issue of potential jamming and alignment difficulties between the first folded edge and the limiting groove during assembly, and to enhance the support strength of the contact area between the first folded edge and the limiting groove, the limiting groove on the inner circumferential wall of the front port of the water tank holder is further improved with extending support ribs. Multiple support ribs are arranged circumferentially along the front port of the water tank holder, and each support rib has a guide bevel at its front end. This guide bevel design guides the first folded edge of the panel bracket smoothly into the limiting groove, significantly reducing assembly difficulty and improving production efficiency. The multiple support ribs increase the structural rigidity of the front port of the water tank holder, preventing deformation under stress and ensuring reliable long-term connection with the panel bracket.

[0013] To address the potential issues of insufficient support and inaccurate positioning relative to the top plate of the housing when the water tank assembly is connected solely by the front panel bracket, the housing also includes a top plate. The front side of the top plate has a second folded edge that folds downwards and is located behind the panel bracket. This second folded edge has a positioning hole, and the front end of the water tank base has a forward-protruding positioning post that is confined within the positioning hole. The engagement between the second folded edge on the top plate and the positioning post on the water tank base achieves the positioning and fixation of the rear of the water tank assembly, forming stable support at both the front (panel bracket) and rear (top plate) points, significantly improving the overall structural strength. Furthermore, the engagement of the positioning post and the positioning hole ensures the positional accuracy of the water tank base in both the vertical and lateral directions, preventing misalignment during installation.

[0014] To ensure a more rational design, ease of processing, and guaranteed strength for the positioning protrusions, the top edge of the front port of the water box base has an upwardly extending plate, on which the positioning protrusions are located. Placing the positioning protrusions on the upwardly extending plate fully utilizes the top space of the water box base, resulting in a rational layout. The extension plate provides sufficient area and thickness to accommodate the protrusions, avoiding the strength issues that might arise from directly placing protrusions on thin-walled surfaces.

[0015] As an improvement, the front port of the water tank holder has a connecting plate extending to the side, which is connected to the second folded edge by fasteners. The rigid connection between the water tank holder and the top plate of the housing is achieved through fasteners (such as screws), providing a connection strength far exceeding that of a simple positioning pin engagement, effectively resisting vibration and accidental pulling. The threaded connection is less prone to loosening, ensuring connection reliability throughout the product's entire lifespan.

[0016] Considering that the head of the fastener may protrude from the surface of the top plate's folded edge, affecting the installation of other components or the aesthetics, as an improvement, the second folded edge also has a recessed area. This recessed area is connected to the connecting plate by a screw. The recessed area on the second folded edge provides space for the screw head, resulting in a smoother surface after connection, preventing interference, avoiding potential injury from protruding screw heads, or hindering the installation of other components, and making the internal structure neater.

[0017] To address the lack of support in the middle and rear of the water tank base, and the potential rearward displacement caused by pulling out the water tank body, the housing is improved by including a top plate. The mounting bracket is U-shaped, with its two top ends connected to the top plate. The mounting bracket is positioned around the periphery of the water tank base to provide upward support for the inner water tank seat. The mounting bracket also features a limiting baffle to restrict rearward movement of the water tank base. The U-shaped mounting bracket provides support and fixation to the water tank base from the periphery and bottom, providing upward support to prevent sagging and deformation. The limiting baffle effectively prevents the water tank base from moving under rearward forces, ensuring the stability of its working position.

[0018] To provide a channel structure that allows for stable movement of the water tank body, the top of the water tank base has a partial opening, where a removable cover is installed. This removable cover opens a passage to the interior of the water tank base, allowing for cleaning or maintenance without disassembling the entire water tank assembly, significantly reducing the difficulty and cost of after-sales maintenance.

[0019] To address the issue of the decorative panel on the water tank body not being flush with the front panel of the machine, thus affecting the overall appearance and aesthetics, an improvement is made: a panel is provided on the front side of the panel bracket, and a decorative panel is provided at the front end of the water tank body. When the water tank body is installed in the water tank holder, the decorative panel is flush with the panel, thus forming a complete panel structure. This structural design ensures that when the water tank is closed, its decorative panel forms a continuous and flat surface with the front panel of the machine, resulting in a more refined appearance and enhancing the product's premium feel and design appeal.

[0020] To facilitate the pop-out of the concealed water tank body, a push-to-pop mechanism is provided on the water tank base. The actuating end of the push-to-pop mechanism abuts against the water tank body. With the push-to-pop mechanism, the user only needs to press the water tank body to make it automatically pop open a short distance, revealing the grippable part, realizing a convenient "press-pop" opening method and providing a better user experience.

[0021] Press-type ejectors can employ various ejector devices in the existing technology that can achieve the "press-eject" function.

[0022] To prevent the water box body from popping out excessively when empty, the push-to-pop ejector is located on the top of the bottom wall of the water box base. A first clearance groove extending forward and backward is provided on the bottom wall of the water box body in the area corresponding to the push-to-pop ejector. The end of the telescopic rod of the push-to-pop ejector is provided with a magnetic element, and a magnetic conductor that can be attracted to the magnetic element is provided in the first clearance groove.

[0023] As an improvement, the bottom wall of the water tank base is also provided with a freely rotatable damping gear. A second, extending relief groove is provided on the bottom wall of the water tank body in a region corresponding to the damping gear. The damping gear is housed in the second relief groove, and a strip-shaped toothed portion is provided on the side wall of the second relief groove to mesh with the damping gear. Through the meshing of the damping gear and the strip-shaped toothed portion, uniform resistance is generated during the water tank's pulling process, enabling it to move slowly, smoothly, and quietly, effectively eliminating impact and noise, and improving the product's perceived quality.

[0024] The aforementioned "damping gear" can be a gear with an internal damping mechanism (such as grease damping, gear set damping, etc.), which will experience significant resistance when it rotates, thus serving as a buffer and deceleration mechanism.

[0025] To further improve the damping feel when pushing the water tank body, an improvement is made by providing an elastic swing member and a first elastic member on the bottom wall of the water tank body near the rear port area of ​​the second relief groove. The elastic swing member has mating teeth on the side facing the second relief groove. The first elastic member acts on the elastic swing member, causing the mating teeth of the elastic swing member to always tend to move towards the second relief groove and engage with the end of the strip teeth. The elastic swing member and the first elastic member allow the damping gear to transition through the flexible mating teeth at the beginning of engagement and the final disengagement, avoiding the impact noise generated by rigid engagement and achieving a near-silent buffering effect. In particular, the water tank body can deform in position when it is first pushed in and contacts the damping gear, which makes the push-to-install water tank feel better.

[0026] As an improvement, the water tank holder has an adapter corresponding to the rear end of the water tank body. The rear end of the water tank body has a socket that can be inserted into the adapter. A one-way valve, driven by the adapter, is located at the socket. When the water tank is pushed in, the adapter opens the one-way valve, automatically connecting the water circuit for automatic water addition or drainage. When the water tank is pulled out, the one-way valve automatically closes to prevent liquid leakage from the water tank into the machine, thus achieving automatic water circuit connection for the built-in water tank.

[0027] To provide a safety barrier in case of leakage at the adapter-plug connection, preventing liquid from flowing into the casing and causing electrical short circuits or corrosion, a drainage hole is provided on the bottom wall of the water tank base, corresponding to the area below the adapter-plug connection. This drainage hole forms a channel, guiding any accidentally leaked liquid to a designated area (such as a drip tray) instead of allowing it to accumulate around hazardous electrical components, significantly improving product safety and reliability.

[0028] Compared with existing technologies, the advantages of this utility model are as follows: By setting an inwardly folded first edge at the mounting opening of the panel bracket, and cooperating with the outwardly expanding limiting groove on the inner circumferential wall of the front port of the water box base, automatic centering and limiting are achieved, avoiding the problem of requiring precise manual alignment in traditional installation and reducing assembly difficulty. The structural design of the first folded edge embedded in the limiting groove simplifies the installation process, eliminating the need for additional screws to fasten the front end, reducing assembly steps and tool dependence, and significantly improving production efficiency and consistency. The engagement of the limiting groove and the folded edge not only ensures the circumferential positioning accuracy of the water box base, but also enhances the overall structural stability, ensuring smooth pushing and pulling of the water box and reducing the risk of displacement during long-term use. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the range hood according to an embodiment of the present utility model;

[0030] Figure 2 This is a three-dimensional structural diagram of the range hood according to an embodiment of the present utility model, with the water box body in a pulled-out state;

[0031] Figure 3 This is a vertical sectional view of the range hood of this utility model, cut along the front-to-back direction, with the cut surface passing through the axis of the fastener;

[0032] Figure 4 This is a vertical sectional view of the range hood of this utility model, cut along the front-to-back direction, with the cutting surface passing through the axis of the positioning protrusion.

[0033] Figure 5 This is a diagram showing the fit between the water box assembly, panel bracket, and top plate in an embodiment of this utility model.

[0034] Figure 6 This is a diagram showing the fit between the water box assembly and the panel bracket in an embodiment of this utility model.

[0035] Figure 7 This is a diagram showing the fit between the water box assembly and the panel bracket in an embodiment of the present invention, omitting the main body of the water box;

[0036] Figure 8 This is a three-dimensional structural diagram of the water box assembly and the mounting bracket after separation in an embodiment of this utility model.

[0037] Figure 9 This is a three-dimensional structural diagram of the water box body and the water box base after separation in an embodiment of the present utility model.

[0038] Figure 10 This is a three-dimensional structural diagram of the back of the water box body according to an embodiment of the present invention. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0041] Figures 1-10 A preferred embodiment of the range hood with a built-in water box of this utility model is shown. A range hood with a built-in water box includes a housing 1 and a water box assembly. The housing 1 includes a fan frame 11, a smoke hood 12, and a top plate 122. The smoke hood 12 is located at the bottom of the fan frame 11, and a centrifugal fan is installed inside the fan frame 11. A panel support 121 is provided at the front upper part of the smoke hood 12, and the panel support 121 has a mounting opening 1210. The mounting opening 1210 has a first folded edge 1211 extending inward toward the housing 1. The front side of the top plate 122 has a downward folded second folded edge 1221, which is located behind the panel support 121.

[0042] The panel 13 is attached to the front side of the panel bracket 121, and an opening is provided on the panel 13 at a position opposite to the mounting port 1210 of the panel bracket 121.

[0043] See Figures 8-10 The water box assembly includes a water box base 21 and a water box body 25. The water box base 21 is fixed relative to the housing 1 by a mounting bracket 3. The front port of the water box base 21 is located on the rear side of the mounting opening 1210 of the panel bracket 121, and the inner peripheral wall of the front port of the water box base 21 has a limiting groove 211 with an outwardly wide opening. The first folded edge 1211 of the panel bracket 121 is embedded in the limiting groove 211. This structure realizes automatic centering and circumferential limiting, avoiding the problem of manual precise alignment required in traditional installation and reducing assembly difficulty. The structural design of the first folded edge 1211 embedded in the limiting groove 211 simplifies the installation process, eliminates the need for additional screws to tighten the front end, reduces assembly steps and tool dependence, and greatly improves production efficiency and consistency.

[0044] See Figure 4 and Figure 9A limiting step 212 is formed on the rear side of the limiting groove 211 on the inner peripheral wall of the front port of the water box base 21, and the rear end of the first folded edge 1211 abuts against the limiting step 212. The abutment between the limiting step 212 and the rear end of the first folded edge 1211 limits the extreme position of the water box base 21 to move forward, preventing it from moving forward and falling off due to vibration or operation. It also provides a clear mechanical stop for the final installation position of the water box base 21, ensuring consistency in each assembly.

[0045] The limiting groove 211 on the inner peripheral wall of the front port of the water box holder 21 is also provided with multiple front-to-back extending support ribs 213, which are evenly arranged circumferentially along the front port of the water box holder 21. Each support rib 213 has a guide slope 2130 at its front end. This guide slope 2130 is designed to guide the first folded edge 1211 of the panel bracket 121 smoothly into the limiting groove 211, greatly reducing assembly difficulty and improving production efficiency. The design of multiple support ribs 213 increases the structural rigidity of the front port of the water box holder 21, preventing deformation due to stress and ensuring the reliability of long-term connection with the panel bracket 121.

[0046] See Figure 4 The top plate 122 has a positioning hole 12210 on its second folded edge 1221, and the front end of the water box base 21 has a forward-protruding positioning protrusion 2140. Specifically, the top edge of the front end of the water box base 21 has an upward-extending extension plate 214, and the positioning protrusion 2140 is located on this extension plate 214. This design makes full use of the top space of the water box base 21, with a reasonable layout, providing sufficient area and thickness to set the protrusion, avoiding the strength problem that may be caused by directly setting the protrusion on the thin wall. The positioning protrusion 2140 is limited in the positioning hole 12210, realizing the positioning and fixation of the rear of the water box assembly, forming a stable support at both the front and rear points, significantly improving the overall structural strength, while ensuring the positional accuracy of the water box base 21 in the vertical and lateral directions, preventing its installation from being skewed.

[0047] See Figure 3 The front port of the water tank base 21 also has a connecting plate 215 extending to the side, which is fastened to the second flange 1221 with screws. This threaded connection method achieves a rigid connection between the water tank base 21 and the top plate 122 of the housing 1. The connection strength is high, which can effectively resist vibration and accidental pulling, and is not easy to loosen, ensuring the connection reliability of the product throughout its entire life cycle. The second flange 1221 has a recessed area 12211, in which the screw head is accommodated. This design makes the surface flatter after the connection is completed, without interference, and avoids the possibility of protruding screw heads scratching people or hindering the installation of other parts, making the internal structure neater.

[0048] See Figure 7 and Figure 8 The mounting bracket 3 is U-shaped, comprising a horizontally extending base plate and two parallel support arms extending upwards from both ends of the base plate. The top ends of the two support arms of the mounting bracket 3 are connected to the top plate 122 by screws. The mounting bracket 3 is arranged around the water box seat 21, and its base plate provides upward support to the water box seat 21 to prevent it from sagging and deforming; the two support arms restrict the left and right movement of the water box seat 21. The mounting bracket 3 is also equipped with a limiting baffle 31 to restrict the water box seat 21 from moving backward, effectively preventing the water box seat 21 from moving when subjected to a backward force, and ensuring the stability of its working position.

[0049] See Figure 9 The top of the water tank holder 21 has a partial opening, and a removable cover 216 is provided at this opening. The removable cover 216 opens a passage to the interior of the water tank holder 21, allowing for cleaning or maintenance without disassembling the entire water tank assembly, greatly reducing the difficulty and cost of after-sales maintenance.

[0050] The water tank body 25 is slidably mounted in the water tank base 21, and a decorative panel 251 is provided at the front end of the water tank body 25. A panel is provided on the front side of the panel bracket 121. When the water tank body 25 is installed in place, the decorative panel 251 is flush with the panel, forming a complete panel structure. This design ensures that when the water tank is closed, its decorative panel 251 forms a continuous and flat surface with the front panel of the machine, making the appearance more refined and enhancing the product's high-end feel and design.

[0051] See Figure 9 and Figure 10 The water tank base 21 is equipped with a push-to-open ejector 22, which is located on the top of the bottom wall of the water tank base 21. A first clearance groove 252 extending forward and backward is provided at a corresponding position on the bottom wall of the water tank body 25. A magnetic element (not shown in the attached drawing) is provided at the end of the telescopic rod 221 of the push-to-open ejector 22, and a magnetic conductor 253 (which can be an iron sheet) is provided in the first clearance groove 252, engaging with the magnetic element. With this push-to-open ejector 22, the user only needs to press the water tank body 25 to automatically pop it open a certain distance, revealing a grippable part, achieving a convenient "press-pop" opening method and providing a better user experience.

[0052] The bottom wall of the water tank base 21 is also equipped with a freely rotatable damping gear 23. A corresponding second clearance groove 254 extending forward and backward is provided on the bottom wall of the water tank body 25, and the damping gear 23 is housed within the second clearance groove 254. A strip-shaped toothed portion 2541 is provided on the side wall of the second clearance groove 254, meshing with the damping gear 23. When the water tank body 25 moves back and forth relative to the water tank base 21, the damping gear 23 also moves along the second clearance groove 254. Through the meshing of the damping gear 23 and the strip-shaped toothed portion 2541, uniform resistance is generated during the water tank's pulling process, enabling it to move slowly, smoothly, and quietly, effectively eliminating impact and noise, and improving the product's perceived quality.

[0053] On the bottom wall of the water tank body 25, near the rear port area of ​​the second clearance groove 254, there is an elastic swing member 26 and a first elastic member 261 (such as a torsion spring). The elastic swing member 26 has a mating tooth 260 on the side facing the second clearance groove 254. The first elastic member 261 makes the mating tooth 260 always tend to move towards the strip tooth 2541. This design allows the damping gear 23 to transition through the flexible mating tooth 260 when it begins to engage and finally disengages, avoiding the impact noise generated by rigid engagement and achieving a near-silent buffering effect. In particular, the water tank body 25 can deform in position when it is first pushed in and comes into contact with the damping gear 23, making the push and installation of the water tank feel better.

[0054] An adapter 24 is provided on the water tank base 21 corresponding to the rear end of the water tank body 25. The rear end of the water tank body 25 has a socket with a one-way valve 2502. The specific structure and operation of the one-way valve 2502 on the water tank body 25 are existing technologies and will not be described in detail here. When the water tank body 25 is pushed in, the adapter 24 drives the one-way valve 2502 to open, automatically connecting the water circuit for automatic water addition or drainage; when pulled out, the one-way valve 2502 automatically closes to prevent liquid in the water tank from leaking into the machine, thus realizing the automatic water circuit connection function of the built-in water tank.

[0055] A drain hole 217 is provided on the bottom wall of the water box base 21 below the insertion position of the adapter 24 and the socket. The drain hole 217 forms a flow channel, which can guide the accidentally leaked liquid to a predetermined area (such as a drip tray) instead of allowing it to accumulate around dangerous electrical components, greatly improving the safety and reliability of the product.

[0056] The bottom of the front end of the water tank body 25 has an upward-recessed notch, which serves as a handle 250 for gripping. This design is user-friendly and convenient for users to operate.

[0057] This embodiment achieves automatic centering and limiting by providing an inwardly folded first edge 1211 at the mounting port 1210 of the panel bracket 121, which cooperates with the outwardly expanding limiting groove 211 on the inner peripheral wall of the front port of the water box base 21. This avoids the problem of requiring precise manual alignment in traditional installations and reduces assembly difficulty. The structural design of the first edge 1211 embedded in the limiting groove 211 simplifies the installation process, eliminating the need for additional screws to tighten the front end, reducing assembly steps and tool dependence, and significantly improving production efficiency and consistency. The engagement of the limiting groove 211 and the edge not only ensures the circumferential positioning accuracy of the water box base 21 but also enhances the overall structural stability, ensuring smooth pushing and pulling of the water box and reducing the risk of displacement during long-term use.

[0058] The range hood in this embodiment (such as the start and reminder of the self-cleaning system) can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the range hood to perform corresponding operations, thereby realizing intelligent control of the range hood and improving the user experience.

Claims

1. A range hood with a built-in water tank, comprising: The housing (1) includes a panel bracket (121) having a mounting port (1210); The water box assembly includes a water box seat (21) disposed within the housing (1) and a water box body (25) disposed in the water box seat (21) in a push-pull manner; The water box base (21) is fixed relative to the housing (1) by a mounting bracket (3), the mounting port (1210) of the panel bracket (121) has a first folded edge (1211) extending inward toward the housing (1), the front port of the water box base (21) is located on the rear side of the periphery of the mounting port (1210) of the panel bracket (121), and the inner peripheral wall of the front port of the water box base (21) has a limiting groove (211) with an outwardly expanding diameter, and the first folded edge (1211) is embedded in the limiting groove (211).

2. The range hood with a built-in water tank according to claim 1, characterized in that: A limiting step (212) is formed on the rear side of the limiting groove (211) on the inner peripheral wall of the front port of the water box seat (21), and the rear end of the first folded edge (1211) abuts against the limiting step (212).

3. The range hood with a built-in water tank according to claim 1, characterized in that: The limiting groove (211) on the inner peripheral wall of the front port of the water box seat (21) is also provided with a front-to-back extending support rib (213). There are multiple support ribs (213) arranged circumferentially along the front port of the water box seat (21), and each support rib (213) has a guide slope (2130) at its front end.

4. The range hood with a built-in water tank according to claim 1, characterized in that: The housing (1) also includes a top plate (122), the front side of which has a second folded edge (1221) that folds down and is located behind the panel support (121). The second folded edge (1221) is provided with a positioning hole (12210). The front port of the water box seat (21) has a forward-protruding positioning protrusion (2140), which is limited in the positioning hole (12210).

5. The range hood with a built-in water tank according to claim 4, characterized in that: The water box base (21) has an upwardly extending extension plate (214) at the top edge of the front port, and the extension plate (214) has the positioning protrusion (2140).

6. The range hood with a built-in water tank according to claim 4, characterized in that: The water box base (21) has a connecting plate (215) extending to the side at the front port, and the connecting plate (215) is connected to the second folded edge (1221) by a fastener (4).

7. The range hood with a built-in water tank according to claim 6, characterized in that: The second folded edge (1221) is also provided with a recessed area (12211), which is connected to the connecting plate (215) by screws.

8. The range hood with a built-in water tank according to claim 1, characterized in that: The housing (1) also includes a top plate (122). The mounting bracket (3) is U-shaped. The two ends of the top of the mounting bracket (3) are connected to the top plate (122). The mounting bracket (3) is arranged around the water box seat (21) to provide upward support for the water box seat. The mounting bracket (3) also has a limiting baffle (31) to restrict the water box seat (21) from moving backward.

9. The range hood with a built-in water tank according to claim 1, characterized in that: The top of the water box base (21) has a partial opening, and a removable cover plate (216) is provided at the opening.

10. The range hood with a built-in water box according to any one of claims 1 to 9, characterized in that: The front side of the panel bracket (121) is provided with a panel, and the front end of the water box body (25) is provided with a decorative panel (251). When the water box body (25) is installed in the water box seat (21), the decorative panel (251) is flush with the panel, thus forming a complete panel structure.

11. The range hood with a built-in water box according to any one of claims 1 to 9, characterized in that: The water box base (21) is also provided with a push-type ejector (22), the working end of which abuts against the water box body (25).

12. The range hood with a built-in water tank according to claim 11, characterized in that: The push-to-pop ejector (22) is located on the top of the bottom wall of the water box base (21). A first clearance groove (252) extending forward and backward is provided on the bottom wall of the water box body (25) in the area corresponding to the push-to-pop ejector (22). The end of the telescopic rod (221) of the push-to-pop ejector (22) is provided with a magnetic element. A magnetic conductor (253) that can be attracted to the magnetic element is provided in the first clearance groove (252).

13. The range hood with a built-in water box according to any one of claims 1 to 9, characterized in that: The bottom wall of the water box base (21) is also provided with a damping gear (23) that can rotate freely. The bottom wall of the water box body (25) is provided with a second relief groove (254) that extends forward and backward in the area corresponding to the damping gear (23). The damping gear (23) is housed in the second relief groove (254). The side wall of the second relief groove is provided with a strip tooth (2541) that can mesh with the damping gear (23).

14. The range hood with a built-in water tank according to claim 13, characterized in that: On the bottom wall of the water box body (25), an elastic swing member (26) and a first elastic member (261) are provided in the area near the rear port of the second relief groove (254). The elastic swing member (26) has a mating tooth (260) on the side facing the second relief groove (254). The first elastic member (261) acts on the elastic swing member (26), and makes the mating tooth (260) of the elastic swing member (26) always tend to move toward the second relief groove (254) and engage with the end of the strip tooth (2541).

15. The range hood with a built-in water box according to any one of claims 1 to 9, characterized in that: The water box base (21) has an adapter (24) corresponding to the rear end of the water box body (25). The rear end of the water box body (25) has a socket that can be inserted into the adapter. A one-way valve (2502) that can be opened by the adapter (24) is provided at the socket.

16. The range hood with a built-in water tank according to claim 15, characterized in that: A water leakage hole (217) is provided on the bottom wall of the water box base (21) corresponding to the position where the adapter (24) and the socket are inserted.

Images