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, and a height difference exists between a top plate of the telescopic panel assembly and a top plate of the telescopic inner cavity; the supporting piece assembly is arranged on a top plate of the telescopic inner cavity or a top plate of the telescopic panel assembly, and the supporting piece assembly is supported between the top plate of the telescopic inner cavity and the top plate of the telescopic panel assembly at least after the telescopic panel assembly retracts into the telescopic inner cavity. According to the range hood, when the telescopic panel assembly retracts into the telescopic inner cavity, the supporting piece assembly can separate the top plate of the telescopic inner cavity from the telescopic panel assembly, the telescopic panel assembly is prevented from being in direct contact with the top plate of the telescopic inner cavity, and therefore the telescopic panel assembly is prevented from extruding and deforming the top plate of the telescopic inner cavity, and the appearance stability of the range hood is improved.

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 kitchen space occupation, existing range hoods feature retractable panel assemblies for functional modules such as lighting and air curtain fans. A retractable inner cavity houses the panel assembly on the hood body. When the hood is in use, a drive mechanism drives the panel assembly out of the retractable inner cavity, allowing functional components such as the lighting and air curtain fans to extend out of the retractable inner cavity for normal use. When the hood is turned off, the drive mechanism retracts the panel assembly into the retractable inner cavity, reducing the amount of kitchen space occupied by the panel assembly when the hood is idle. However, due to the gap between the retractable panel assembly and the top plate of the retractable inner cavity, when the user applies force to the top plate of the retractable inner cavity during transportation or installation of the hood, the top plate of the retractable inner cavity can easily deform, affecting the overall appearance of the hood. 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 present invention 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 or retract into the telescopic inner cavity from the outlet on the front side of the telescopic inner cavity, and there is a height difference between the top plate of the telescopic panel assembly and the top plate of the telescopic inner cavity; the support assembly is provided on the top plate of the telescopic inner cavity or the top plate of the telescopic panel assembly, and the support assembly is supported between the top plate of the telescopic inner cavity and the top plate of the telescopic panel assembly at least after the telescopic panel assembly is retracted into the telescopic inner cavity.

[0005] According to one embodiment of the present invention, the support member assembly is always supported between the top plate of the telescopic inner cavity and the top plate of the telescopic panel assembly.

[0006] According to one embodiment of the present invention, the support member assembly includes a support seat and a roller. The support seat is arranged on the top plate of the telescopic inner cavity or the top plate of the telescopic panel assembly. The roller is connected to the support seat in a rolling manner. The roller abuts against the top plate of the telescopic panel assembly or the top plate of the telescopic inner cavity. During the process of the telescopic panel assembly extending or retracting into the telescopic inner cavity, the roller rolls around the support seat.

[0007] 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.

[0008] 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.

[0009] According to one embodiment of the present invention, an introduction groove is provided on the wall surfaces of two supporting walls arranged opposite to each other, and the introduction groove extends to above the shaft hole. The introduction groove is an inclined surface, and 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.

[0010] According to one embodiment of the present invention, the support member assembly is supported between the top plate of the telescopic inner cavity and the top plate of the telescopic panel assembly after the telescopic panel assembly is retracted into the telescopic inner cavity, and is separated from the top plate of the telescopic panel assembly / the top plate of the telescopic inner cavity when the telescopic panel assembly is fully extended out of the telescopic inner cavity.

[0011] According to one embodiment of the present invention, the support member assembly includes a support seat, a support block and an elastic member. The support seat is arranged on the top plate of the telescopic inner cavity or the top plate of the telescopic panel assembly. The support block is connected to the support seat so as to be movable up and down. The elastic member is arranged between the support block and the support seat / top plate of the telescopic inner cavity / top plate of the telescopic panel assembly. The support block is provided with an inlet surface.

[0012] According to one embodiment of the present invention, the support block includes a sliding connection part and a support part. The size of the support part is smaller than that of the sliding connection part. A sliding groove is provided on the inner wall surface of the sliding cavity of the support seat. The height of the sliding groove is greater than the thickness of the sliding connection part. The sliding connection part is slidably connected in the sliding groove and is limited by the sliding groove.

[0013] 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.

[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, when the telescopic panel assembly is retracted into the telescopic inner cavity, the support assembly is supported between the telescopic panel assembly and the top plate of the telescopic inner cavity, thereby enhancing the force-bearing capacity of the top plate of the telescopic inner cavity and preventing the top plate of the telescopic inner cavity from being squeezed and deformed when the user applies force to the top plate of the telescopic inner cavity during transportation, thereby ensuring the stability of the appearance of the range hood. 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 the powered-on state;

[0018] Figure 3This is a schematic diagram of the internal structure of the telescopic inner cavity in the present utility model;

[0019] Figure 4 This is a projection diagram of the range hood of the present invention in the powered-on state;

[0020] Figure 5 This is a schematic diagram of the structure of the range hood of the present invention after the telescopic panel assembly is removed;

[0021] Figure 6 This is an exploded view of the structure of the support component in the present invention;

[0022] Figure 7 This is a structural schematic diagram of another embodiment of the range hood of the present invention after the telescopic panel assembly is removed;

[0023] Figure 8 This is a structural exploded view of another embodiment of the support component in the present invention.

[0024] In the figure: 1. Range hood body, 11. Telescopic inner cavity, 2. Telescopic panel assembly, 3. Support assembly, 31. Support seat, 311. Base, 312. Support wall, 3121. Axis hole, 3122. Introduction groove, 313. Slide groove, 32. Roller, 321. Roller, 33. Support block, 331. Sliding connection part, 332. Support part, 34. Elastic part, 4. Driving mechanism, 41. Connecting rod assembly, 411. First connecting rod, 412. Second connecting rod, 42. Driving assembly, 421. Rotating shaft, 422. Electric push rod, 423. Push rod connecting rod, 5. Guide assembly.

[0025] 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

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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:

[0030] See also Figures 1 to 4 The present invention 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 from or retract into the telescopic inner cavity 11 through the outlet on the front side of the telescopic inner cavity 11. A height difference exists between the top plate of the telescopic panel assembly 2 and the top plate of the telescopic inner cavity 11. The support assembly 3 is disposed on the top plate of the telescopic inner cavity 11 or the top plate of the telescopic panel assembly 2. At least after the telescopic panel assembly 2 is retracted into the telescopic inner cavity 11, the support assembly 3 is supported between the top plate of the telescopic inner cavity 11 and the top plate of the telescopic panel assembly 2. In the range hood of the present invention, the support assembly 3 is supported between the telescopic panel assembly 2 and the top plate of the telescopic inner cavity 11, thereby enhancing the force-bearing capacity of the top plate of the telescopic inner cavity 11. This prevents the top plate of the telescopic inner cavity 11 from being squeezed and deformed when a user applies force to it during transportation, thereby ensuring the stability of the range hood's appearance.

[0031] In actual use, 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 cavity 11, the lighting assembly, air curtain assembly, and air quality detection module extend out of the telescopic 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 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.

[0032] In some embodiments, when the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity 11, the support member assembly 3 is disengaged from the top plate of the telescopic panel assembly 2 or the top plate of the telescopic panel assembly 2. Then, when the telescopic panel assembly 2 is retracted into the telescopic inner cavity 11, the support member assembly 3 returns to between the top plate of the telescopic inner cavity 11 and the top plate of the telescopic panel assembly 2.

[0033] In such Figure 4 In the illustrated embodiment, the support member assembly 3 is always supported between the top plate of the telescopic inner cavity 11 and the top plate of the telescopic panel assembly 2 .

[0034] If the support member assembly 3 is arranged on the top plate of the telescopic inner cavity 11, the support member assembly 3 is close to the upper edge of the outlet on the front side of the telescopic inner cavity 11. Even if the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity 11, its rear end part will remain at the opening of the telescopic inner cavity 11. At this time, the support member assembly 3 close to the opening of the telescopic inner cavity 11 is still supported between the top plate of the telescopic inner cavity 11 and the top plate of the telescopic panel assembly 2.

[0035] If the support member assembly 3 is arranged on the top plate of the telescopic panel assembly 2, the support member assembly 3 is adjacent to the rear edge of the top plate of the telescopic panel assembly 2. Even if the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity 11, its rear end part will remain at the opening of the telescopic inner cavity 11. At this time, the support member assembly 3 adjacent to the rear end of the telescopic panel assembly 2 is still supported between the top plate of the telescopic inner cavity 11 and the top plate of the telescopic panel assembly 2.

[0036] like Figure 5 and Figure 6 As shown, the range hood of the present invention comprises a support assembly 3 comprising a support base 31 and a roller 32. The support base 31 is disposed on the top plate of the telescopic inner chamber 11 or the top plate of the telescopic panel assembly 2. The roller 32 is rotatably connected to the support base 31 and abuts against the top plate of the telescopic panel assembly 2 or the top plate of the telescopic inner chamber 11. As the telescopic panel assembly 2 extends or retracts into the telescopic inner chamber 11, the roller 32 rolls around the support base 31. The roller 32 is rotatable relative to the bottom plate of the telescopic inner chamber 11. The apex of the roller 32 props up the telescopic panel assembly 2, thereby forming a gap between the bottom plates of the telescopic panel assembly 2 and the bottom plate of the telescopic inner chamber 11. During the process of the telescopic panel assembly 2 extending or retracting the telescopic inner cavity 11, 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, thereby improving the structural stability of the roller 32 and the telescopic panel assembly 2.

[0037] 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.

[0038] In the smoke machine of the present invention, Figure 6As 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.

[0039] In the smoke machine of the present invention, Figure 6 As shown, the two opposing support walls 312 are provided with guide grooves 3122, which extend above the shaft hole 3121. The guide grooves 3122 are inclined, 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, allowing the roller 321 to be installed into the shaft hole 3121 from the top of the support walls 312 downward along the guide grooves 3122. The guide grooves 3122 guide the roller 321 during installation into the shaft hole 3121, making it easier for the roller 321 to overcome the resistance of the support walls 312 and enter the shaft hole 3121, thereby reducing the difficulty of assembling the roller 321 into the shaft hole 3121 and improving assembly convenience. The guide groove 3122 extends to above the shaft hole 3121 , so that 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 .

[0040] In another embodiment, after the telescopic panel assembly 2 is retracted into the telescopic inner cavity 11, the support member assembly 3 is supported between the top plate of the telescopic inner cavity 11 and the top plate of the telescopic panel assembly 2. When the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity 11, the support member assembly 3 is separated from the top plate of the telescopic panel assembly 2 / the top plate of the telescopic inner cavity 11. In this way, during the process of extending or retracting the telescopic panel assembly 2 into the telescopic inner cavity 11, the support member assembly 3 does not experience sliding friction with the top plate of the telescopic panel assembly 2 / the top plate of the telescopic inner cavity 11 throughout the entire process, thereby reducing wear on the support member assembly 3 and the top plate of the telescopic panel assembly 2 / the top plate of the telescopic inner cavity 11.

[0041] In the above embodiment, the support member assembly 3 includes a support seat 31, a support block 33 and an elastic member 34. The support seat 31 is arranged on the top plate of the telescopic inner cavity 11 or the top plate of the telescopic panel assembly 2. The support block 33 is connected to the support seat 31 so as to be movable up and down. The elastic member 34 is arranged between the support block 33 and the support seat 31 / the top plate of the telescopic inner cavity 11 / the top plate of the telescopic panel assembly 2. The support block 33 is provided with an inlet surface.

[0042] like Figure 7 and Figure 8As shown, taking the support seat 31 disposed on the top plate of the telescopic inner cavity 11 as an example, the support seat 31 is provided with a sliding cavity, and the support block 33 is disposed in the sliding cavity and passes through the bottom of the support seat 31 so as to be liftable. The elastic member 34 is disposed between the support block 33 and the top plate of the telescopic inner cavity 11. The guide surface is an inclined surface that forms an angle with the lifting direction of the support block 33, and the distance between the guide surface and the opening of the telescopic inner cavity 11 decreases from bottom to top. During the process of retracting the telescopic panel assembly 2 into the telescopic inner cavity 11, the rear edge of the top plate of the telescopic panel assembly 2 first abuts against the guide surface. The guide surface can decompose the force exerted by the telescopic panel assembly 2 on the support block 33 to produce an upward component force, so that the top plate of the telescopic panel assembly 2 presses the support block 33 upward, causing the support block 33 to rise, thereby allowing the support block 33 to avoid the telescopic panel assembly 2, ensuring that the telescopic panel assembly 2 can be smoothly retracted into the telescopic inner cavity 11. When the support block 33 rises, it compresses the elastic part 34, causing the elastic part 34 to generate an elastic force acting on the support block 33 and the top plate of the telescopic inner cavity 11, so that the force acting on the top plate of the telescopic panel assembly 2 from the support part assembly 3 is also an elastic force. The elastic part 34 can buffer the indirect extrusion between the top plate of the telescopic panel assembly 2 and the top plate of the telescopic inner cavity 11, thereby further preventing the top plate of the telescopic inner cavity 11 from being squeezed and deformed.

[0043] like Figure 7 and Figure 8 As shown, in the range hood of the present invention, the support block 33 includes a sliding connection part 331 and a support part 332. The size of the support part 332 is smaller than that of the sliding connection part 331. The inner wall surface of the sliding cavity of the support seat 31 is provided with a sliding groove 313. The height of the sliding groove 313 is greater than the thickness of the sliding connection part 331. The sliding connection part 331 is slidably connected in the sliding groove 313 and is limited by the sliding groove 313.

[0044] like Figure 7 and Figure 8 As shown, taking the top plate of the support seat 31 disposed in the telescopic inner cavity 11 as an example, the support seat 31 has openings at both the top and bottom, with the top opening of the support seat 31 being larger than the bottom opening. The support block 33 can be installed into the sliding cavity from the top opening of the support seat 31. After the support block 33 is installed in the sliding cavity, the smaller support portion 332 passes through the slide groove 313 and extends out of the bottom opening of the support seat 31. The larger sliding connection portion 331 is restrained within the slide groove 313 and can slide up and down along the slide groove 313. In this way, the support block 33 can slide upward when squeezed by the telescopic panel assembly 2. When not squeezed by the telescopic panel assembly 2, it can be restrained by the slide groove 313 to prevent it from falling off the support seat 31, thereby improving the structural stability of the support assembly 3.

[0045] In the range hood of the present invention, the support member assemblies 3 are provided in multiple groups, and the multiple groups of support member assemblies 3 are evenly distributed on the bottom plate of the telescopic inner chamber 11 along the width of the telescopic inner chamber 11. This disperses the forces acting on each support member assembly 3, and also disperses the forces acting on a single portion of the telescopic panel assembly 2 and the top plate of the telescopic inner chamber 11, thereby improving the structural stability of the support member assemblies 3, the telescopic panel assembly 2, and the top plate of the telescopic inner chamber 11.

[0046] In the smoke machine of the present invention, Figure 3 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.

[0047] 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, the two ends of the telescopic panel assembly 2 extend backward with the telescopic panel assembly 2, and the second end of the second connecting rod 412 is connected to the telescopic panel assembly 2; 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. 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 .

[0048] 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 limit of the guide assembly 5, the second end of the second link 412 can drive the telescopic panel assembly 2 forward through the panel connecting plate. 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 limit of the guide assembly 5, the second end of the second link 412 can drive the telescopic panel assembly 2 backward through the panel connecting plate. 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.

[0049] 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 height difference exists between a top plate of the telescopic panel assembly (2) and a top plate of the telescopic inner cavity (11); A support member assembly (3) is provided on the top plate of the telescopic inner cavity (11) or the top plate of the telescopic panel assembly (2); the support member assembly (3) is supported between the top plate of the telescopic inner cavity (11) and the top plate of the telescopic panel assembly (2) at least after the telescopic panel assembly (2) is retracted into the telescopic inner cavity (11).

2. The range hood according to claim 1, characterized in that: The support member assembly (3) is always supported between the top plate of the telescopic inner cavity (11) and the top plate of the telescopic panel assembly (2).

3. The range hood according to claim 2, characterized in that: The support member assembly (3) comprises a support seat (31) and a roller (32); the support seat (31) is arranged on the top plate of the telescopic inner cavity (11) or the top plate of the telescopic panel assembly (2); the roller (32) is connected to the support seat (31) in a rolling manner; the roller (32) abuts against the top plate of the telescopic panel assembly (2) or the top plate of the telescopic inner cavity (11); and when the telescopic panel assembly (2) extends or retracts into the telescopic inner cavity (11), the roller rolls around the support seat (31).

4. The range hood according to claim 3, 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).

5. 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).

6. The range hood according to claim 4, 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) extends to the top of the shaft hole (3121). 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 becomes thicker from top to bottom. The roller (321) descends along the introduction groove (3122) and is installed in the shaft hole (3121).

7. The range hood according to claim 1, characterized in that: The support member assembly (3) is supported between the top plate of the telescopic inner cavity (11) and the top plate of the telescopic panel assembly (2) after the telescopic panel assembly (2) is retracted into the telescopic inner cavity (11); and is separated from the top plate of the telescopic panel assembly (2) / the top plate of the telescopic inner cavity (11) when the telescopic panel assembly (2) is fully extended out of the telescopic inner cavity (11).

8. The range hood according to claim 7, characterized in that: The support member assembly (3) comprises a support seat (31), a support block (33) and an elastic member (34); the support seat (31) is arranged on the top plate of the telescopic inner cavity (11) or the top plate of the telescopic panel assembly (2); the support block (33) is connected to the support seat (31) in a manner movable up and down; the elastic member (34) is arranged between the support block (33) and the support seat (31) / the top plate of the telescopic inner cavity (11) / the top plate of the telescopic panel assembly (2); and the support block (33) is provided with an introduction surface.

9. The range hood according to claim 8, characterized in that: The support block (33) includes a sliding connection portion (331) and a support portion (332). The size of the support portion (332) is smaller than the size of the sliding connection portion (331). A sliding groove (313) is provided on the inner wall surface of the sliding cavity of the support seat (31). The height of the sliding groove (313) is greater than the thickness of the sliding connection portion (331). The sliding connection portion (331) is slidably connected in the sliding groove (313) and is limited by the sliding groove (313).

10. 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).

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