A smoke machine
By introducing reinforcing components into the range hood, the problem of easy deformation of the range hood cover was solved, the drop resistance was improved, the cost was reduced, the structural stability and sealing were enhanced, and the independence and cleanliness of the functional components were maintained.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG CHENGYI TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-29
AI Technical Summary
During packaging and handling, the cover of the smoke collection box is easily crushed or deformed due to stress, and has poor resistance to drops.
A reinforcing component, including a support plate and a reinforcing plate, is introduced into the range hood to connect the cover plate and the bottom plate, and to separate the inner cavity into an electronic control cavity and a smoke collection cavity. The reinforcing component disperses the impact force of the cover plate to the bottom plate, thereby enhancing the structural stability.
It improves the range hood's drop resistance, reduces material costs and manufacturing difficulty, maintains the cleanliness and independence of functional components, extends service life, prevents mutual interference between cavities, and enhances the overall structural stability and sealing.
Smart Images

Figure CN224302168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoke hood technology, specifically to a smoke hood. Background Technology
[0002] A range hood, also known as a cooking hood, is a kitchen appliance that purifies the kitchen environment. Installed above the stove, it quickly removes harmful cooking fumes and vents them outdoors. The main body of a range hood consists of a smoke collection box and an external air box connected to the top of the smoke collection box. The cover of the smoke collection box supports the weight of the external air box. During packaging and handling of the range hood, if the main body is accidentally dropped, the cover of the smoke collection box is easily crushed or deformed by the force, indicating poor drop resistance. Utility Model Content
[0003] The purpose of this utility model is to provide a range hood that solves the above-mentioned technical problems.
[0004] The smoke hood proposed in this utility model includes a smoke collection box, an outer air box, a reinforcing component, and a smoke exhaust fan. The smoke collection box has an inner cavity and an air intake communicating with the inner cavity. The cover plate of the smoke collection box has a connection port and a connection position arranged around the connection port. The outer air box is connected to the connection port of the cover plate, and the lower end of the outer air box is connected to the connection position. The outer air box has a smoke exhaust chamber and an exhaust port communicating with the smoke exhaust chamber. The smoke exhaust chamber is communicating with the inner cavity. The reinforcing component is located in the inner cavity, with one end connected to the bottom plate of the inner cavity and the other end connected to the cover plate. The smoke exhaust fan is located in the smoke exhaust chamber.
[0005] According to one embodiment of the present invention, the reinforcing component divides the inner cavity into an electronic control cavity and a smoke collection cavity, the electronic control cavity and the smoke collection cavity are independent of each other, and the smoke collection cavity is connected to the smoke exhaust cavity.
[0006] According to one embodiment of the present invention, the reinforcing component includes a support plate and a reinforcing plate. The reinforcing plate is disposed on the base plate. The lower end of the support plate is connected to the reinforcing plate, the upper end is connected to the cover plate, and the left and right ends are connected to the side plates of the inner cavity.
[0007] According to one embodiment of the present invention, the support plate includes a first connecting plate, a vertical plate, and a second connecting plate. The first connecting plate is connected to the reinforcing plate. The lower end of the vertical plate is connected to the first connecting plate, and the upper end is connected to the second connecting plate. The second connecting plate is connected to the cover plate.
[0008] According to one embodiment of the present invention, the first connecting plate extends backward, the second connecting plate extends forward, the width of the reinforcing plate is greater than the width of the first connecting plate, and the second connecting plate extends forward to the front side of the upright plate.
[0009] According to one embodiment of the present invention, the reinforcing plate extends along the left and right direction of the base plate to both sides of the base plate, the supporting plate extends along the left and right direction of the reinforcing plate to both sides of the base plate, and the left and right edges of the upright plate are provided with a third connecting plate, which is connected to the corresponding side wall of the inner cavity.
[0010] According to one embodiment of the present invention, the smoke hood also includes a surrounding plate, a groove is provided on the cover plate around the connecting port, the surrounding plate is disposed in the groove, the surrounding plate is arranged around the outer air box, and the inner wall surface of the groove forms a connecting position.
[0011] According to one embodiment of the present invention, the plane where the bottom surface of the groove is located is lower than the plane where other parts of the cover plate are located, and the second connecting plate has a stepped surface at least in the part corresponding to the bottom surface of the groove, and the bottom surface of the groove is connected to the stepped surface.
[0012] According to one embodiment of the present invention, the second connecting plate is provided with a first connecting surface and a second connecting surface. The first connecting surface is formed by extending forward from the upright plate. The front edge of the first connecting surface is provided with a connecting part, which extends upward from the front edge of the first connecting surface. The second connecting surface extends forward from the upper edge of the connecting part, and the first connecting surface and the second connecting surface form a stepped surface.
[0013] According to one embodiment of the present invention, the cover plate includes a front cover plate and a rear cover plate. The front cover plate is located above the electronic control cavity, and the rear cover plate covers the smoke collection cavity. The reinforcing component is connected to both the rear edge of the front cover plate and the front edge of the rear cover plate.
[0014] Compared with the prior art, the smoke hood of this utility model has the following advantages:
[0015] In this utility model, the reinforcing component inside the smoke collection box connects the bottom plate and the cover plate of the smoke collection box. Thus, the force on the cover plate can be transmitted and distributed to the bottom plate through the reinforcing component, so as to avoid the cover plate or the bottom plate being deformed or damaged due to concentrated force when the smoke machine is dropped during packaging and handling, thereby improving the drop resistance of the smoke machine. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the smoke hood of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the smoke hood of this utility model from another direction;
[0018] Figure 3 This is a structural schematic diagram of the smoke hood of this utility model from another direction;
[0019] Figure 4 This is a schematic diagram of the structure of the range hood of this utility model after the front cover is removed;
[0020] Figure 5 This is a structural cross-sectional view of the smoke hood of this utility model;
[0021] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.
[0022] In the diagram: 1. Smoke collection box, 11. Air intake, 12. Cover plate, 122. Connecting position, 123. Groove, 124. Front cover plate, 125. Rear cover plate, 13. Bottom plate, 14. Electrical control chamber, 15. Smoke collection chamber, 2. External air box, 21. Smoke exhaust chamber, 3. Reinforcing component, 31. Support plate, 311. First connecting plate, 312. Vertical plate, 313. Second connecting plate, 314. Third connecting plate, 32. Reinforcing plate, 4. Smoke exhaust fan, 5. Enclosure.
[0023] 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
[0024] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0025] 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.
[0026] 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.
[0027] 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:
[0028] This utility model discloses a smoke hood. Please refer to [link / reference]. Figures 1 to 6 The smoke hood proposed in this utility model includes a smoke collection box 1, an outer air box 2, a reinforcing component 3, and a smoke exhaust fan 4. The smoke collection box 1 has an inner cavity and an air intake 11 communicating with the inner cavity. The cover plate 12 of the smoke collection box 1 is provided with a connection port and a connection position 122 arranged around the connection port. The outer air box 2 is connected to the connection port of the cover plate 12. The lower end of the outer air box 2 is connected to the connection position 122. The outer air box 2 is provided with a smoke exhaust chamber 21 and an exhaust port communicating with the smoke exhaust chamber 21. The smoke exhaust chamber 21 is communicating with the inner cavity. The reinforcing component 3 is located in the inner cavity, with one end connected to the bottom plate 13 of the inner cavity and the other end connected to the cover plate 12. The smoke exhaust fan 4 is located in the smoke exhaust chamber 21.
[0029] In this embodiment, the inner cavity of the smoke collection box 1 is connected to the smoke exhaust chamber 21 of the outer air box 2 through an exhaust port. The exhaust port is located at the top of the outer air box 2. The smoke collection box 1 has an air intake 11, which is connected to the inner cavity. The smoke exhaust fan 4 provides the power required for the range hood to extract fumes. When the range hood is working, the smoke exhaust fan 4 starts and generates negative pressure in the inner cavity, driving airflow. The fumes in the kitchen are drawn into the smoke collection box 1 through the air intake 11, then flow from the connection port to the smoke exhaust chamber 21, and finally are discharged from the range hood through the exhaust port.
[0030] The weight borne by the smoke collection box 1 mainly comes from the outer air box 2 and the exhaust fan 4. If the smoke machine falls during packaging and handling, the downward impact force of the outer air box 2 and the exhaust fan 4 will directly act on the cover plate 12 of the smoke collection box 1. The upper end of the reinforcing component 3 is connected to the cover plate 12, and the lower end is connected to the bottom plate 13 of the smoke collection box 1. The reinforcing component 3 can make the internal structure of the smoke collection box 1 more compact and stable. The impact force on the cover plate 12 can be transferred and dispersed to the bottom plate 13 through the reinforcing component 3, so as to avoid the cover plate 12 being deformed or damaged due to concentrated force when the smoke machine falls during packaging and handling, thereby improving the fall resistance of the smoke machine.
[0031] The smoke hood of this utility model, such as Figures 5 to 6 As shown, the reinforcing component 3 divides the inner cavity into an electronically controlled cavity 14 and a smoke collection cavity 15. The electronically controlled cavity 14 and the smoke collection cavity 15 are independent of each other, and the smoke collection cavity 15 is connected to the smoke exhaust cavity 21.
[0032] The electrical control cavity 14 is used to install the functional components of the smoke machine. The electrical control cavity 14 is located in front of the smoke collection cavity 15, that is, the electrical control cavity 14 is closer to the side where the user stands and operates than the smoke collection cavity 15. The functional components are located on the inner wall of the electrical control cavity 14 away from the smoke collection cavity 15, so as to facilitate user operation.
[0033] The reinforcing component 3 not only supports the reinforcing cover plate 12 but also divides the inner cavity into an independent electrical control cavity 14 and a smoke collection cavity 15. This allows the smoke collection box 1 to form a single-layer box structure. Compared to the existing technology that uses an internal air box to form a double-layer box, this invention uses the reinforcing component 3 to divide the inner cavity, eliminating the need for a complex internal air box structure. This effectively reduces material costs and manufacturing difficulty, thereby lowering the overall cost and improving the effective utilization rate of the reinforcing component 3. By using the reinforcing component 3, the oil fumes drawn in by the air intake 11 are isolated in the smoke collection cavity 15, preventing them from entering the electrical control cavity 14 and contaminating the functional components. This maintains the long-term cleanliness of the functional components and improves the technical problem in existing range hoods where oil fumes easily affect and damage the functional components inside the cavity, leading to increased cleaning and replacement costs.
[0034] The reinforcement component 3 physically isolates the electrical control cavity 14 and the smoke collection cavity 15, providing better functional isolation and protection. For the electrical control cavity 14, it prevents impurities such as oil fumes and dust that may be present in the smoke collection cavity 15 from entering, reducing corrosion and contamination of functional components, extending their service life, and ensuring the stable operation of the electrical control system. For the smoke collection cavity 15, it also avoids unnecessary interference to the smoke collection function caused by malfunctions in the electrical control section, further enhancing the independence and reliability of each functional module.
[0035] The reinforcing component 3 also acts as a physical partition, structurally stabilizing the boundary between the two cavities and preventing deformation or mutual interference of the two cavities due to external vibrations or other factors during use. This helps maintain the stability of the entire internal structure of the range hood and ensures the normal operation of all functions.
[0036] The functional components can be lighting components, or air curtain components and air quality detection modules. The cover plate 12 has air curtain inlets corresponding to the air curtain components and detection holes corresponding to the air quality detection modules, while the base plate 13 has air curtain outlets corresponding to the air curtain components and lighting windows corresponding to the lighting components. When the exhaust fan 4 is started, the air curtain components activate and form an air curtain between the user and the stove to prevent the escape of cooking fumes. The lighting components illuminate the area so the user can clearly see the state of the cooking ingredients, and the air quality detection module monitors the air quality in real time to determine the smoke removal effect of the range hood.
[0037] The smoke hood of this utility model, such as Figure 5 As shown, the reinforcing component 3 includes a support plate 31 and a reinforcing plate 32. The reinforcing plate 32 is disposed on the base plate 13. The lower end of the support plate 31 is connected to the reinforcing plate 32, the upper end is connected to the cover plate 12, and the left and right ends are connected to the side plates of the inner cavity.
[0038] The reinforcing plate 32 and the base plate 13 form a surface-contact sealing structure, which increases the connection area between the reinforcing component 3 and the base plate 13, improving the connection strength and sealing performance. The upper end of the support plate 31 is sealed to the cover plate 12, and the left and right ends of the support plate 31 are respectively sealed to the left and right side plates of the smoke collection box 1 to form an all-round seal. This effectively prevents impurities such as oil fumes and water vapor in the smoke collection chamber 15 from entering the electrical control chamber 14, avoiding damage such as corrosion and short circuits to the electronic components in the electrical control chamber 14. It also prevents heat and static electricity generated by the wiring in the electrical control chamber 14 from interfering with the normal smoke collection and exhaust functions of the smoke collection chamber 15, ensuring the independence and stability of the functions of the two chambers and minimizing the adverse effects between them.
[0039] The smoke hood of this utility model, such as Figures 4 to 6 As shown, the support plate 31 includes a first connecting plate 311, a vertical plate 312, and a second connecting plate 313. The first connecting plate 311 is connected to the reinforcing plate 32. The lower end of the vertical plate 312 is connected to the first connecting plate 311, and the upper end is connected to the second connecting plate 313. The second connecting plate 313 is connected to the cover plate 12.
[0040] The first connecting plate 311 increases the connection area between the support plate 31 and the reinforcing plate 32, thereby improving the connection strength and sealing performance. The second connecting plate 313 increases the connection area between the support plate 31 and the cover plate 12, thereby improving the connection strength and sealing performance. The upright plate 312 is perpendicular to the bottom plate 13 and the cover plate 12, and its two ends along the length direction are respectively connected to the two side plates of the smoke collection box 1.
[0041] The smoke hood of this utility model, such as Figures 4 to 6 As shown, the first connecting plate 311 extends backward, the second connecting plate 313 extends forward, the width of the reinforcing plate 32 is greater than the width of the first connecting plate 311, and the second connecting plate 313 extends forward to the front side of the upright plate 312.
[0042] The first connecting plate 311 extends toward the smoke collection chamber 15 relative to the upright plate 312. When oil accumulates in the smoke collection chamber 15, the contact surface between the first connecting plate 311 and the reinforcing plate 32 forms a barrier to prevent oil from spreading toward the electrical control chamber 14. This barrier is a surface structure. Compared to the way the first connecting plate 311 extends toward the electrical control chamber 14 in the opposite direction, the barrier structure has a larger partition area, which provides better protection against oil from the smoke collection chamber 15 entering the electrical control chamber 14.
[0043] The first connecting plate 311 and the second connecting plate 313 are vertically offset, which helps to disperse the impact force on the cover plate 12 laterally through the support plate 31, thereby improving the impact force dispersion effect of the reinforcing component 3. The portion of the reinforcing plate 32 extending to the front side of the upright plate 312 is opposite to the second connecting plate 313, which increases the coverage and reinforcement area of the reinforcing plate 32 on the bottom plate 13, preventing the portion of the bottom plate 13 opposite to the second connecting plate 313 from easily deforming under stress, thereby further improving the drop resistance of the smoke collection box 1.
[0044] The smoke hood of this utility model, such as Figure 4 As shown, the reinforcing plate 32 extends along the left and right direction of the base plate 13 to both sides of the base plate 13, and the supporting plate 31 extends along the left and right direction of the reinforcing plate 32 to both sides of the base plate 13. The left and right edges of the upright plate 312 are provided with third connecting plates 314, which are connected to the corresponding side walls of the inner cavity. There are two third connecting plates 314, which are respectively connected to the left and right ends of the upright plate 312, and are respectively sealed to the two side walls of the inner cavity.
[0045] The smoke hood of this utility model, such as Figure 1 , Figure 2 and Figure 5 As shown, the range hood also includes a surrounding plate 5. A groove 123 is provided on the cover plate 12 around the connection port. The surrounding plate 5 is located within the groove 123 and surrounds the outer air box 2. The inner wall of the groove 123 forms a connection position 122. The lower end of the outer air box 2 is inserted into the groove 123 to achieve a fixed connection between the outer air box 2 and the cover plate 12, and to increase the connection area between the outer air box 2 and the cover plate 12, thereby improving connection stability. The surrounding plate 5 encloses the outer air box 2, which can hide and protect the outer air box 2, thus improving both the overall appearance of the range hood and the protection of the outer air box 2.
[0046] The smoke hood of this utility model, such as Figure 3 and Figure 6 As shown, the plane where the bottom surface of the groove 123 is located is lower than the plane where other parts of the cover plate 12 are located. At least the part of the second connecting plate 313 corresponding to the bottom surface of the groove 123 is provided with a stepped surface, and the bottom surface of the groove 123 is connected to the stepped surface.
[0047] The weight of the outer air box 2 acts directly on the bottom surface of the groove 123. The stepped surface of the second connecting plate 313 supports the bottom surface of the groove 123, so that the second connecting plate 313 can support and strengthen the bottom surface of the groove 123, preventing the bottom surface of the groove 123 from easily deforming or being damaged when directly bearing the weight of the outer air box 2.
[0048] The smoke hood of this utility model, such as Figures 1 to 6As shown, the second connecting plate 313 is provided with a first connecting surface and a second connecting surface. The first connecting surface is formed by extending forward from the vertical plate 312. The front edge of the first connecting surface is provided with a connecting part, which extends upward from the front edge of the first connecting surface. The second connecting surface extends forward from the upper edge of the connecting part, and the first connecting surface and the second connecting surface form a stepped surface.
[0049] The rear edge of the first connecting surface is connected to the upper edge of the upright plate 312, and the lower edge of the connecting part is connected to the front edge of the first connecting surface. The first connecting surface is set facing upward, and the second connecting surface is set facing backward. The first connecting surface abuts against the lower surface of the groove bottom of the groove 123, and the second connecting surface abuts against the part of the inner wall surface of the cover plate 12 that corresponds to the front groove wall of the groove 123. In this way, the reinforcing support area of the second connecting plate 313 on the groove 123 can be increased, thereby improving the reinforcing effect of the second connecting plate 313 on the groove 123.
[0050] The smoke hood of this utility model, such as Figures 3 to 4 As shown, the cover plate 12 includes a front cover plate 124 and a rear cover plate 125. The front cover plate 124 is located above the electronic control cavity 14, and the rear cover plate 125 covers the smoke collection cavity 15. The reinforcing component 3 is connected to the rear edge of the front cover plate 124 and the front edge of the rear cover plate 125.
[0051] The front cover 124 is detachably installed over the electrical control cavity 14. When it is necessary to inspect or maintain the functional components inside the electrical control cavity 14, the front cover 124 can be removed to expose the electrical control cavity 14, thus eliminating the need to remove the entire cover 12, allowing the rear cover 125 to remain covering the smoke collection cavity 15. The rear edge of the front cover 124 and the front edge of the rear cover 125 are both connected to the reinforcing assembly 3, thereby enabling the reinforcing assembly 3 to provide support for the front cover 124 and the rear cover 125.
[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A range hood, characterized in that, include: A smoke collection box (1) has an inner cavity and an air inlet (11) communicating with the inner cavity. The cover plate (12) of the smoke collection box (1) is provided with a connection port and a connection position (122) arranged around the connection port. An external air box (2) is connected to the connection port of the cover plate (12). The lower end of the external air box (2) is connected to the connection position (122). The external air box (2) is provided with a smoke exhaust chamber (21) and an exhaust port communicating with the smoke exhaust chamber (21). The smoke exhaust chamber (21) is communicating with the inner cavity. A reinforcing component (3) is disposed in the inner cavity, with one end connected to the bottom plate (13) of the inner cavity and the other end connected to the cover plate (12); A smoke exhaust fan (4) is located inside the smoke exhaust chamber (21).
2. The range hood according to claim 1, characterized in that, The reinforcing component (3) divides the inner cavity into an electronically controlled cavity (14) and a smoke collection cavity (15). The electronically controlled cavity (14) and the smoke collection cavity (15) are independent of each other, and the smoke collection cavity (15) is connected to the smoke exhaust cavity (21).
3. The smoke hood according to claim 1, characterized in that, The reinforcing component (3) includes a support plate (31) and a reinforcing plate (32). The reinforcing plate (32) is disposed on the base plate (13). The lower end of the support plate (31) is connected to the reinforcing plate (32), the upper end is connected to the cover plate (12), and the left and right ends are connected to the side plates of the inner cavity.
4. The range hood according to claim 3, characterized in that, The support plate (31) includes a first connecting plate (311), a vertical plate (312), and a second connecting plate (313). The first connecting plate (311) is connected to the reinforcing plate (32). The lower end of the vertical plate (312) is connected to the first connecting plate (311), and the upper end is connected to the second connecting plate (313). The second connecting plate (313) is connected to the cover plate (12).
5. The range hood according to claim 4, characterized in that, The first connecting plate (311) extends rearward, the second connecting plate (313) extends forward, the width of the reinforcing plate (32) is greater than the width of the first connecting plate (311), and the second connecting plate (313) extends forward to the front side of the upright plate (312).
6. The range hood according to claim 4, characterized in that, The reinforcing plate (32) extends along the left and right direction of the base plate (13) to both sides of the base plate (13), the supporting plate (31) extends along the left and right direction of the reinforcing plate (32) to both sides of the base plate (13), and the left and right edges of the upright plate (312) are provided with a third connecting plate (314), which is connected to the corresponding side wall of the inner cavity.
7. The range hood according to claim 3, characterized in that, It also includes a surrounding plate (5), on which a groove (123) is provided around the connection port on the cover plate (12), the surrounding plate (5) is disposed in the groove (123), the surrounding plate (5) is arranged around the outer air box (2), and the inner wall surface of the groove (123) forms the connection position (122).
8. The range hood according to claim 7, characterized in that, The plane containing the bottom surface of the groove (123) is lower than the plane containing other parts of the cover plate (12). At least the portion of the second connecting plate (313) corresponding to the bottom surface of the groove (123) is provided with a stepped surface, and the bottom surface of the groove (123) is connected to the stepped surface.
9. The range hood according to claim 8, characterized in that, The second connecting plate (313) is provided with a first connecting surface and a second connecting surface. The first connecting surface is formed by extending forward from the upright plate (312). The front edge of the first connecting surface is provided with a connecting part. The connecting part extends upward from the front edge of the first connecting surface. The second connecting surface extends forward from the upper edge of the connecting part. The first connecting surface and the second connecting surface form the stepped surface.
10. The range hood according to claim 2, characterized in that, The cover plate (12) includes a front cover plate (124) and a rear cover plate (125). The front cover plate (124) is located above the electronic control cavity (14), and the rear cover plate (125) covers the smoke collection cavity (15). The reinforcing component (3) is connected to the rear edge of the front cover plate (124) and the front edge of the rear cover plate (125).