Range hood

Abstract

The range hood comprises a range hood body, a telescopic panel assembly and a supporting piece assembly, the range hood body is provided with a telescopic inner cavity, and an outlet is formed in the front side of the telescopic inner cavity; the telescopic panel assembly is connected to the telescopic inner cavity in a sliding mode and can stretch out of or retract into the telescopic inner cavity from an outlet in the front side of the telescopic inner cavity. The supporting piece assembly is arranged on the bottom plate of the telescopic inner cavity and makes contact with the bottom plate of the telescopic panel assembly, and a gap exists between the lower surface of the telescopic panel assembly and the lower edge of the outlet of the telescopic inner cavity. According to the range hood disclosed by the utility model, the friction resistance borne by the telescopic panel assembly in the process of stretching out of or retracting into the telescopic inner cavity can be reduced, so that the sliding process of the telescopic panel assembly is smoother.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, and in particular to a range hood. Background Art

[0002] To reduce the space occupied in the kitchen, existing range hoods feature a retractable panel assembly that houses functional modules such as lighting and air curtain fans. The main body of the range hood is provided with a retractable inner cavity to accommodate the panel assembly. When the range hood is in use, a drive mechanism drives the panel assembly to extend out of the retractable inner cavity, allowing the lighting, air curtain fans, and other functional modules to extend out of the retractable inner cavity and function normally. When the range hood is turned off, the drive mechanism retracts the panel assembly into the retractable inner cavity, reducing the space occupied by the panel assembly when the range hood is idle. During the process of extending or retracting the panel assembly into the retractable inner cavity, friction with the bottom plate of the retractable inner cavity can occur, resulting in an unsmooth sliding of the panel assembly. Utility Model Content

[0003] The purpose of the present utility model is to provide a range hood, which is used to solve the above technical problems.

[0004] The range hood proposed by the utility model includes a range hood main body, a telescopic panel assembly and a support assembly. The range hood main body has a telescopic inner cavity, and an outlet is provided on the front side of the telescopic inner cavity; the telescopic panel assembly is slidably connected to the telescopic inner cavity and can extend from or retract into the telescopic inner cavity from the outlet on the front side of the telescopic inner cavity; the support assembly is arranged on the bottom plate of the telescopic inner cavity, the support assembly contacts the bottom plate of the telescopic panel assembly, and there is a gap between the lower surface of the telescopic panel assembly and the lower edge of the outlet of the telescopic inner cavity.

[0005] According to one embodiment of the present invention, the support member assembly includes a support seat and a roller connected to the support seat in a rolling manner. The height of the top of the roller is higher than the height of the lower edge of the outlet on the front side of the telescopic inner cavity. During the process of extending or retracting the telescopic panel assembly into the telescopic inner cavity, its lower surface is always in contact with the roller and drives the roller to roll.

[0006] According to one embodiment of the present invention, the support seat includes a base and two support walls arranged on the base. The two support walls are arranged opposite to each other, and an axial hole is provided on the support wall. The roller is provided with a roller. The roller is installed between the two support walls, and the roller is rollingly connected in the axial hole.

[0007] According to one embodiment of the present invention, after the roller is mounted on the support seat, its axis is arranged along the width direction of the telescopic inner cavity.

[0008] According to one embodiment of the present invention, an introduction groove is provided on the wall surfaces of the two supporting walls arranged opposite to each other. The introduction groove is an inclined surface. The wall thickness of the part of the supporting wall corresponding to the introduction groove gradually becomes thicker from top to bottom. The roller descends along the introduction groove and is installed into the shaft hole.

[0009] According to one embodiment of the present invention, the introduction groove extends above the shaft hole.

[0010] According to one embodiment of the present invention, the number of support member assemblies is at least one group, and one group of support member assemblies is arranged on the center line of the bottom plate of the telescopic inner cavity; or two groups of support member assemblies are symmetrically arranged on the bottom plate of the telescopic inner cavity; or multiple groups of support member assemblies are evenly distributed on the bottom plate of the telescopic inner cavity along the width direction of the telescopic inner cavity.

[0011] According to one embodiment of the present invention, the range hood further comprises a driving mechanism, which is disposed in the telescopic inner cavity and connected to the telescopic panel assembly for driving the telescopic panel assembly to extend or retract into the telescopic inner cavity.

[0012] According to one embodiment of the present utility model, the driving mechanism includes a connecting rod assembly and a driving assembly, the connecting rod assembly includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is rotatably connected to the first end of the second connecting rod, the two ends of the telescopic panel assembly are provided with panel connecting plates extending backward, and the second end of the second connecting rod is connected to the panel connecting plate; the driving assembly is used to drive the second end of the first connecting rod to rotate; the driving assembly includes a rotating shaft, an electric push rod and a push rod connecting rod, both ends of the rotating shaft are connected to the connecting rod assembly, the driving end of the electric push rod is connected to the first end of the push rod connecting rod, the second end of the push rod connecting rod is connected to the rotating shaft, and both ends of the rotating shaft are connected to the connecting rod assembly.

[0013] According to one embodiment of the present invention, a guide assembly is provided in the telescopic inner cavity, and the guide assembly is connected to the telescopic panel assembly. When the telescopic panel assembly extends out of or retracts into the telescopic inner cavity, the guide assembly guides the telescopic panel assembly.

[0014] Compared with the prior art, the range hood of this utility model has the following advantages:

[0015] In the range hood of the present invention, the support member assembly can replace the bottom plate of the telescopic inner cavity to contact the bottom plate of the telescopic panel assembly. Since the contact area between the support member assembly and the telescopic panel assembly is smaller than the contact area between the bottom plate of the telescopic inner cavity and the telescopic panel assembly, the sliding friction between the telescopic panel assembly and the support member assembly will be smaller than the sliding friction between the telescopic panel assembly and the bottom plate of the telescopic inner cavity during the sliding process. In this way, the friction resistance encountered by the telescopic panel assembly during the process of extending or retracting the telescopic inner cavity can be reduced, so that the sliding process of the telescopic panel assembly can be smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the cigarette lighter of the present invention in closed state;

[0017] Figure 2 This is a structural diagram of the range hood of the present invention in a powered-on state;

[0018] Figure 3 This is a schematic cross-sectional view of the range hood of the present invention in the powered-on state;

[0019] Figure 4 This is a schematic diagram of the structure of the range hood of the present invention after the telescopic panel assembly is removed;

[0020] Figure 5 This is a schematic diagram of the internal structure of the telescopic inner cavity in the present utility model;

[0021] Figure 6 This is a structural exploded view of the support component in the present invention.

[0022] In the figure: 1. Range hood body, 11. Telescopic inner cavity, 2. Telescopic panel assembly, 21. Panel connecting plate, 3. Support assembly, 31. Support seat, 311. Base, 312. Support wall, 3121. Axis hole, 3122. Inlet groove, 32. Roller, 321. Roller, 4. Drive mechanism, 41. Connecting rod assembly, 411. First connecting rod, 412. Second connecting rod, 42. Drive assembly, 421. Rotating shaft, 422. Electric push rod, 423. Push rod connecting rod, 5. Guide assembly.

[0023] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0028] See also Figures 1 to 3 The utility model discloses a range hood, comprising a range hood body 1, a telescopic panel assembly 2, and a support assembly 3. The range hood body 1 has a telescopic inner cavity 11, with an outlet provided on the front side of the telescopic inner cavity 11. The telescopic panel assembly 2 is slidably connected to the telescopic inner cavity 11 and can extend or retract from the outlet on the front side of the telescopic inner cavity 11. The support assembly 3 is disposed on the bottom plate of the telescopic inner cavity 11. The support assembly 3 contacts the bottom plate of the telescopic panel assembly 2, and a gap is formed between the lower surface of the telescopic panel assembly 2 and the lower edge of the outlet of the telescopic inner cavity 11. Due to the presence of the support assembly 3, a gap is formed between the lower surface of the telescopic panel assembly 2 and the lower edge of the outlet of the telescopic inner cavity 11. Since the contact area between the support assembly 3 and the telescopic panel assembly 2 is smaller than the contact area between the lower edge of the outlet of the telescopic inner cavity 11 and the telescopic panel assembly 2, the telescopic panel assembly 2 experiences less frictional resistance during extension or retraction of the telescopic inner cavity 11, thereby making the sliding process of the telescopic panel assembly 2 smoother.

[0029] In a specific application, the mounting cavity of the telescopic panel assembly 2 is equipped with a lighting assembly, an air curtain assembly, and an air quality detection module. The top plate of the telescopic panel assembly 2 is provided with an air curtain inlet corresponding to the air curtain assembly and a detection hole corresponding to the air quality detection module. The bottom plate of the telescopic panel assembly 2 is provided with an air curtain outlet corresponding to the air curtain assembly and a lighting window corresponding to the lighting assembly. When the telescopic panel assembly 2 extends out of the telescopic inner cavity 11, the lighting assembly, air curtain assembly, and air quality detection module extend out of the telescopic inner cavity 11 along with the telescopic panel assembly 2. When the range hood is turned off, the telescopic panel assembly 2 retracts into the telescopic inner cavity 11, thereby storing and concealing the telescopic panel assembly 2. When the range hood is turned on, the lighting assembly, air curtain assembly, and air quality detection module operate according to the settings or user selections, and the functional portion enables the air curtain module and lighting module to function. When the air curtain assembly is started, the air above the telescopic panel assembly 2 enters through the air curtain inlet and is discharged by the air curtain assembly through the air curtain outlet, forming an air curtain under the bottom plate of the telescopic panel assembly 2. The air curtain is located between the user and the stove, which can block the oil smoke and prevent the oil smoke from escaping. When the lighting assembly is running, the light emitted by the lighting assembly shines downward through the lighting window to provide a lighting environment for the user. When the air quality detection module is started, the air above the telescopic panel assembly 2 enters the air quality detection module through the detection hole and is detected by the air quality detection module. The air quality detected by the air quality detection module represents the air quality of the kitchen. When the range hood is running, the air quality detection module is started to detect the range hood's suction effect on oil smoke. When the range hood is turned off, the air quality detection module is started to play a patrol role to detect whether there is oil smoke backflow in the kitchen.

[0030] In the smoke machine of the present invention, Figure 6 As shown, the support member assembly 3 includes a support base 31 and a roller 32 that is rotatably connected to the support base 31. The height of the apex of the roller 32 is higher than the height of the lower edge of the front outlet of the telescopic inner cavity 11. During the process of extending or retracting the telescopic panel assembly 2 into the telescopic inner cavity 11, its lower surface always abuts against the roller 32 and drives the roller 32 to roll. The apex of the roller 32 props up the telescopic panel assembly 2, so that a gap is formed between the bottom plate of the telescopic panel assembly 2 and the lower edge of the front outlet of the telescopic inner cavity 11. During the process of the telescopic panel assembly 2 extending or retracting the telescopic inner cavity 11, the lower surface of the telescopic panel assembly 2 contacts the roller 32, the contact area is very small, and the friction force generated between the telescopic panel assembly 2 and the roller 32 is rolling friction. Compared with sliding friction, rolling friction has less hindrance to the movement process of the telescopic panel assembly 2, thereby further making the movement process of the telescopic panel assembly 2 smoother; in addition, compared with sliding friction, rolling friction generates less friction force on the roller 32 and the telescopic panel assembly 2, thereby reducing the wear of the roller 32 and the telescopic panel assembly 2 at the same time, so as to improve the structural stability of the roller 32 and the telescopic panel assembly 2.

[0031] In the smoke machine of the present invention, Figure 6 As shown, the support base 31 includes a base 311 and two support walls 312 provided on the base 311. The two support walls 312 are arranged opposite each other, and the support walls 312 are provided with an axial hole 3121. The roller 32 is provided with a roller 321. The roller 32 is installed between the two support walls 312, and the roller 321 is connected to the axial hole 3121 in a rolling manner. There are two rollers 321, each protruding from opposite sides of the roller 32 in the axial direction. The two rollers 321 are respectively rotatably engaged with the two axial holes 3121, so that the roller 32 can rotate relative to the two support walls 312. The pressure exerted by the telescopic panel assembly 2 on the roller 32 can be dispersed to the two support walls 312 through the two rollers 321, and then transmitted to the base 311 through the two support walls 312, so that the overall force of the support assembly 3 is more uniform.

[0032] In the smoke machine of the present invention, Figure 6 As shown, after the roller 32 is mounted on the support base 31, its axis is arranged along the width direction of the telescopic inner cavity 11. The axis of the roller 32 is perpendicular to the opening direction of the telescopic inner cavity 11, that is, perpendicular to the movement direction of the telescopic panel assembly 2. The movement direction of the telescopic panel assembly 2 is tangent to the vertex of the roller 32, so that the telescopic panel assembly 2 can be driven to roll when it is driven.

[0033] In the smoke machine of the present invention, Figure 6 As shown, the two opposing support walls 312 are provided with guide grooves 3122. The guide grooves 3122 are inclined surfaces, and the wall thickness of the portion of the support wall 312 corresponding to the guide grooves 3122 gradually increases from top to bottom. The roller 321 descends along the guide grooves 3122 and is installed into the shaft hole 3121. The guide grooves 3122 penetrate the top walls of the support walls 312, and the roller 321 can be installed into the shaft hole 3121 from the top of the support wall 312 downward along the guide grooves 3122. The guide grooves 3122 can guide the roller 321 during the installation process, making it easier for the roller 321 to overcome the resistance of the support wall 312 and enter the shaft hole 3121, thereby reducing the difficulty of assembling the roller 321 and the shaft hole 3121 and improving assembly convenience.

[0034] In the smoke machine of the present invention, Figure 6 As shown, the guide groove 3122 extends above the shaft hole 3121. In this way, the roller 321 can enter the shaft hole 3121 more promptly after moving into position along the guide groove 3122, thereby further improving the assembly convenience of the roller 321 and the shaft hole 3121.

[0035] In the smoke machine of the present invention, Figure 4As shown, the number of support member assemblies 3 is at least one group, and one group of support member assemblies 3 is arranged on the center line of the bottom plate of the telescopic inner cavity 11; or two groups of support member assemblies 3 are symmetrically arranged on the bottom plate of the telescopic inner cavity 11; or multiple groups of support member assemblies 3 are evenly distributed on the bottom plate of the telescopic inner cavity 11 along the width direction of the telescopic inner cavity 11.

[0036] If there is only one support assembly 3, the support assembly 3 abuts the centerline of the bottom plate of the telescopic panel assembly 2. This allows the telescopic panel assembly 2 to be supported as much as possible as a whole and avoid tilting to one side. If there are two support assembly assemblies 3, the two groups of support assembly assemblies 3 abut the bottom plate of the telescopic panel assembly 2 symmetrically. This increases the number of support positions for the telescopic panel assembly 2 and allows the telescopic panel assembly 2 to be supported as a whole. If there are three or more support assembly assemblies 3, the multiple groups of support assembly assemblies 3 evenly support various positions on the bottom plate of the telescopic panel assembly 2 along the width direction of the telescopic panel assembly 2, thereby improving the support stability of the telescopic panel assembly 2.

[0037] In the smoke machine of the present invention, Figure 5 As shown, the range hood further includes a drive mechanism 4, which is disposed within the telescopic inner cavity 11 and connected to the telescopic panel assembly 2. The drive mechanism 4 is configured to drive the telescopic panel assembly 2 to extend or retract within the telescopic inner cavity 11. When the range hood is powered on, the drive mechanism 4 activates to drive the telescopic panel assembly 2 forward and out of the telescopic inner cavity 11. Once the telescopic panel assembly 2 is fully extended, the drive mechanism 4 deactivates. When the range hood is powered off, the drive mechanism 4 activates to drive the telescopic panel assembly 2 backward and retract within the telescopic inner cavity 11. Once the telescopic panel assembly 2 is fully retracted, the drive mechanism 4 deactivates. This allows the telescopic panel assembly 2 to automatically extend or retract, enhancing the range hood's ease of use.

[0038] In the smoke machine of the present invention, Figure 5 As shown, the driving mechanism 4 includes a connecting rod assembly 41 and a driving assembly 42, the connecting rod assembly 41 includes a first connecting rod 411 and a second connecting rod 412, the first end of the first connecting rod 411 is rotatably connected to the first end of the second connecting rod 412, and the two ends of the telescopic panel assembly 2 are provided with panel connecting plates 21 extending backward, and the second end of the second connecting rod 412 is connected to the panel connecting plate 21; the driving assembly 42 is used to drive the second end of the first connecting rod 411 to rotate; the driving assembly 42 includes a rotating shaft 421, an electric push rod 422 and a push rod connecting rod 423, both ends of the rotating shaft 421 are connected to the connecting rod assembly 41, the driving end of the electric push rod 422 is connected to the first end of the push rod connecting rod 423, the second end of the push rod connecting rod 423 is connected to the rotating shaft 421, and both ends of the rotating shaft 421 are connected to the connecting rod assembly 41.

[0039] When the range hood is turned on, the electric push rod 422 applies a thrust to the push rod link 423, causing the push rod link 423 to rotate the rotating shaft 421, which in turn drives the first link 411 to rotate. The rotation of the first link 411 can drive the second end of the second link 412 to rotate. Due to the position restriction of the telescopic inner cavity 11 on the telescopic panel assembly 2, the second end of the second link 412 can drive the telescopic panel assembly 2 forward through the panel connecting plate 21. When the range hood is turned off, the electric push rod 422 applies a pulling force to the push rod link 423, causing the push rod link 423 to rotate the rotating shaft 421 in the opposite direction. The rotating shaft 421 drives the first link 411 in the opposite direction. The rotation of the first link 411 can drive the second end of the second link 412 to rotate. Due to the position restriction of the telescopic inner cavity 11 on the telescopic panel assembly 2, the second end of the second link 412 can drive the telescopic panel assembly 2 backward through the panel connecting plate 21.

[0040] In the smoke machine of the present invention, Figure 4 As shown, a guide assembly 5 is provided in the telescopic inner cavity 11 and is connected to the telescopic panel assembly 2. When the telescopic panel assembly 2 extends or retracts into the telescopic inner cavity 11, the guide assembly 5 guides the telescopic panel assembly 2. The guide assembly 5 can limit the movement trajectory of the telescopic panel assembly 2 in the front-to-back direction, preventing the movement trajectory of the telescopic panel assembly 2 from deviating, thereby preventing the telescopic panel assembly 2 from getting stuck, and ensuring the movement stability of the telescopic surface assembly.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A range hood, characterized in that: include: A range hood body (1) has a telescopic inner cavity (11), and an outlet is provided on the front side of the telescopic inner cavity (11); a telescopic panel assembly (2) which is slidably connected to the telescopic inner cavity (11) and can be extended from an outlet on the front side of the telescopic inner cavity (11) or retracted into the telescopic inner cavity (11); A support member assembly (3) is provided on the bottom plate of the telescopic inner cavity (11), the support member assembly (3) contacts the bottom plate of the telescopic panel assembly (2), and a gap exists between the lower surface of the telescopic panel assembly (2) and the lower edge of the outlet of the telescopic inner cavity (11).

2. The range hood according to claim 1, characterized in that: The support member assembly (3) comprises a support seat (31) and a roller (32) rollingly connected to the support seat (31); the height of the top of the roller (32) is higher than the height of the lower edge of the outlet on the front side of the telescopic inner cavity (11); when the telescopic panel assembly (2) extends or retracts into the telescopic inner cavity (11), its lower surface always contacts the roller (32) and drives the roller (32) to roll.

3. The range hood according to claim 2, characterized in that: The support seat (31) comprises a base (311) and two support walls (312) arranged on the base (311), the two support walls (312) are arranged opposite to each other, an axis hole (3121) is provided on the support wall (312), the roller (32) is provided with a roller (321), the roller (32) is installed between the two support walls (312), and the roller (321) is rollingly connected in the axis hole (3121).

4. The range hood according to claim 3, characterized in that: After the roller (32) is mounted on the support seat (31), its axis is arranged along the width direction of the telescopic inner cavity (11).

5. The range hood according to claim 3, characterized in that: An introduction groove (3122) is provided on the wall surfaces of the two supporting walls (312) that are arranged opposite to each other. The introduction groove (3122) is an inclined surface. The wall thickness of the portion of the supporting wall (312) corresponding to the introduction groove (3122) gradually increases from top to bottom. The roller (321) descends along the introduction groove (3122) and is installed in the shaft hole (3121).

6. The range hood according to claim 5, characterized in that: The introduction groove (3122) extends to above the shaft hole (3121).

7. The range hood according to claim 1, characterized in that: The number of the support member assemblies (3) is at least one group, and one group of the support member assemblies (3) is arranged on the center line of the bottom plate of the telescopic inner cavity (11); or two groups of the support member assemblies (3) are symmetrically arranged on the bottom plate of the telescopic inner cavity (11); or multiple groups of the support member assemblies (3) are evenly distributed on the bottom plate of the telescopic inner cavity (11) along the width direction of the telescopic inner cavity (11).

8. The range hood according to claim 1, characterized in that: It also includes a driving mechanism (4), which is arranged in the telescopic inner cavity (11) and is connected to the telescopic panel assembly (2) and is used to drive the telescopic panel assembly (2) to extend or retract into the telescopic inner cavity (11).

9. The range hood according to claim 8, characterized in that: The driving mechanism (4) comprises a connecting rod assembly (41) and a driving assembly (42), wherein the connecting rod assembly (41) comprises a first connecting rod (411) and a second connecting rod (412), wherein the first end of the first connecting rod (411) is rotatably connected to the first end of the second connecting rod (412), and both ends of the telescopic panel assembly (2) are provided with panel connecting plates (21) extending backward, and the second end of the second connecting rod (412) is connected to the panel connecting plates (21); the driving assembly (42) is used to drive the The second end of the first connecting rod (411) rotates; the driving assembly (42) comprises a rotating shaft (421), an electric push rod (422) and a push rod connecting rod (423); both ends of the rotating shaft (421) are connected to the connecting rod assembly (41); the driving end of the electric push rod (422) is connected to the first end of the push rod connecting rod (423); the second end of the push rod connecting rod (423) is connected to the rotating shaft (421); and both ends of the rotating shaft (421) are connected to the connecting rod assembly (41).

10. The range hood according to claim 1, characterized in that: A guide assembly (5) is provided in the telescopic inner cavity (11), and the guide assembly (5) is connected to the telescopic panel assembly (2). When the telescopic panel assembly (2) extends out of or retracts into the telescopic inner cavity (11), the guide assembly (5) guides the telescopic panel assembly (2).

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