CN220506871U - Fume exhauster - Google Patents

Abstract

The utility model discloses a range hood, which comprises a fan module and a control screen module arranged on the fan module, wherein the control screen module comprises a shell and a screen, the screen can be lifted and arranged relative to the shell, so that the screen can be positioned in the shell or at least partially can downwards extend out of the lower part of the bottom of the shell, a yielding hole for the screen to pass through is formed in the bottom of the shell, the control screen module further comprises a baffle mechanism capable of opening or closing the yielding hole, the baffle mechanism comprises a first baffle and a second baffle which are arranged left and right, and the first baffle and the second baffle can move towards the direction of approaching each other to close the yielding hole and move towards the direction of separating from each other to open the yielding hole.

Description

Fume exhauster

Technical Field

The utility model relates to a lampblack purifying device, in particular to a range hood.

Background

The range hood has become one of the indispensable kitchen appliances in modern families. The range hood works by utilizing the fluid dynamics principle, and the range hood sucks and discharges oil smoke through a centrifugal fan arranged in the range hood and filters part of grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor for driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, and oil smoke below the range hood is sucked into the fan and is collected by the volute after being accelerated by the fan to be guided to be discharged out of the room.

In the actual operating environment of the range hood in the current market, the screen and the range hood cannot be fused in a traditional control mode, and the position and the angle of the screen depend on the panel of the range hood, so that the range hood is too inclined or too high to operate conveniently, and the requirements of actual control operation cannot be met. In addition, the existing screen is exposed in the oil smoke environment no matter in the working state or in the non-working state, the screen is polluted by the oil smoke for a long time, the surface of the screen is greasy, the display or touch is affected, the oil smoke is usually high in temperature, and the service life of the screen is affected because the screen is in the high-temperature environment for a long time; even some prior art also adopts some hidden schemes to prevent the screen from being exposed under the lampblack environment, for example, additionally arranging a separate protective shell for the screen or arranging a special protective shell for the whole lifting device, however, the arrangement can lead to the overall structure to be complex, the space occupancy rate to be high, the cost to be increased, and the added structure can lead to the later maintenance rate to be high.

For this reason, chinese patent application No. 202222014580.2 of the applicant discloses a range hood, which includes a fan module and a control screen disposed on the fan module, wherein the control screen can be lifted relative to the fan module, so that the control screen can be at least partially lowered below the fan module.

The range hood is characterized in that the control screen is arranged on the fan frame, and the fan frame is usually positioned right above a user, so that the height of the control screen can be adjusted by utilizing the lifting device, and therefore, the user is ensured to be basically in a head-up state with the control screen or the height of the control screen can be automatically adjusted based on the use habit of the user. Although the screen will be controlled in the clearance between fan frame and the fan dustcoat, can realize controlling the screen and the isolated of oil smoke to a certain extent, owing to be provided with the hole of stepping down that supplies the screen to pass through on the mounting panel, still inevitably there is the oil smoke entering clearance and then pollute and control the screen through the hole of stepping down.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a range hood aiming at the defects in the prior art, which can effectively isolate a control screen from a lampblack environment and prolong the service life.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a range hood, includes fan module and sets up the screen module of controlling on fan module, control screen module and include casing and screen, the screen can be relative casing lift setting to make the screen can be located the casing or at least part can stretch out the below of casing bottom downwards, the hole of stepping down that supplies the screen to pass through is seted up to the bottom of casing, its characterized in that:

the control screen module further comprises a baffle mechanism capable of opening or closing the abdication hole, the baffle mechanism comprises a first baffle and a second baffle which are arranged left and right, the first baffle and the second baffle can move towards the direction close to each other to close the abdication hole and move towards the direction far away from each other to open the abdication hole.

By arranging the two baffles, the two baffles can move in opposite directions or move in opposite directions, so that in the shutdown state of the range hood, the baffles can close the abdication holes to prevent sundries from entering from the abdication holes, further protect the control screen, and when the range hood is opened, the abdication holes can be opened, thereby ensuring that the screen can smoothly descend for operation; and the arrangement of two baffles can be driven by smaller force relative to one baffle, which is beneficial to the simplification of a movement mechanism.

Further, the baffle mechanism further comprises a first movement mechanism for driving the first baffle to move and a second movement mechanism for driving the second baffle to move, the first movement mechanism comprises a first connecting rod, and two ends of the first connecting rod are respectively and rotatably connected with the shell and the first baffle; the second movement mechanism comprises a second connecting rod, and two ends of the second connecting rod are respectively and rotatably connected with the shell and the second baffle;

the first movement mechanism further comprises a first pressing block assembly for pushing the first connecting rod to rotate so as to drive the first baffle to open the abdication hole, the first pressing block assembly is linked with the screen, and the second movement mechanism further comprises a second pressing block assembly for pushing the second connecting rod to rotate so as to drive the second baffle to open the abdication hole;

the first connecting rod and the second connecting rod are kept to reset, so that the corresponding baffle plate closes the tendency of the yielding hole.

The baffle is moved by the connecting rod, the whole structure of the mechanism is simple and the operation is stable, and the problems of complex structure and high cost caused by the arrangement of gears, belts and other mechanisms are avoided.

Further, for the first briquetting subassembly of being convenient for can have longer promotion stroke, first briquetting subassembly includes first support, first briquetting and second briquetting, first support and screen linkage, interval arrangement is about first briquetting and the second briquetting on first support, the size of first briquetting is greater than the size of second briquetting, first briquetting and second briquetting homoenergetic and first connecting rod butt, first briquetting and second briquetting can promote first connecting rod to rotate step by step.

Further, for making first support and screen lift steady, first moving mechanism still includes the first slider that can guide first support lift, first slider includes first fixed rail and with first fixed rail sliding fit's first slide rail, first fixed rail is connected with the inboard of casing, first slide rail is connected with first support.

Further, in order to ensure that the first baffle moves horizontally, the first movement mechanism further comprises a third connecting rod, the first connecting rod and the third connecting rod are arranged side by side, the third connecting rod is arranged on one side, far away from the second connecting rod, of the first connecting rod, and two ends of the third connecting rod are respectively connected with the shell and the first baffle in a rotating mode.

In order to facilitate the automatic reset of the first baffle after the screen rises, the first movement mechanism further comprises a first elastic piece which enables the third connecting rod to keep reset so as to push the first connecting rod to reset.

Preferably, the first elastic element is a torsion spring, one end of the first elastic element is connected with the inner side of the shell, and the other end of the first elastic element is connected with the third connecting rod.

Further, for the second briquetting subassembly of being convenient for can have longer promotion stroke, the second briquetting subassembly includes second support, third briquetting and fourth briquetting, second support and screen linkage, interval arrangement is about third briquetting and the fourth briquetting on the second support, the size of third briquetting is greater than the size of fourth briquetting, third briquetting and fourth briquetting homoenergetic and second connecting rod butt, third briquetting and fourth briquetting can promote the second connecting rod to rotate step by step.

Further, for making second support and screen lift steady, second motion still includes the second slider that can guide the second support to go up and down, the second slider includes second orbit determination and with second orbit determination sliding fit's second slide rail, second orbit determination is connected with the inboard of casing, second slide rail is connected with second support.

Further, in order to ensure that the second baffle moves horizontally, the second movement mechanism further comprises a fourth connecting rod, the second connecting rod and the fourth connecting rod are arranged side by side, the fourth connecting rod is arranged on one side, far away from the first connecting rod, of the second connecting rod, and two ends of the fourth connecting rod are respectively connected with the shell and the second baffle in a rotating mode.

In order to facilitate the automatic resetting of the second baffle after the screen rises, the second movement mechanism further comprises a second elastic piece which enables the fourth connecting rod to keep resetting so as to push the second connecting rod to reset.

Preferably, the second elastic piece is a torsion spring, one end of the second elastic piece is connected with the inner side of the shell, and the other end of the second elastic piece is rotationally connected with the fourth connecting rod.

Further, the control screen module further comprises a third movement mechanism for driving the screen to lift, the third movement mechanism comprises a linear driving module, the linear driving module comprises a motor, a screw rod and a sliding block, the screw rod is longitudinally arranged and driven by the motor to rotate around the axis of the screw rod, the sliding block can move along the extending direction of the screw rod, and the sliding block is directly or indirectly connected with the screen.

Compared with the prior art, the utility model has the advantages that: by arranging the two baffles, the two baffles can move in opposite directions or move in opposite directions, so that in the shutdown state of the range hood, the baffles can close the abdication holes to prevent sundries from entering from the abdication holes, further protect the control screen, and when the range hood is opened, the abdication holes can be opened, thereby ensuring that the screen can smoothly descend for operation; the arrangement of the two baffles can be driven by smaller force relative to one baffle, so that simplification of a movement mechanism can be facilitated; the baffle is moved by the connecting rod, the whole structure of the mechanism is simple and the operation is stable, and the problems of complex structure and high cost caused by the arrangement of gears, belts and other mechanisms are avoided.

Drawings

Fig. 1 is a schematic view (closed state) of a control screen module according to an embodiment of the utility model;

FIG. 2 is a schematic view of a hidden portion of the housing of the operation screen module of FIG. 1;

FIG. 3 is a cross-sectional view of the steering screen module of FIG. 1;

fig. 4 is a schematic view (open state) of a control screen module according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a hidden portion of the housing of the operation screen module of FIG. 4;

FIG. 6 is a cross-sectional view of the steering screen module of FIG. 4;

FIG. 7 is a schematic diagram of a partially exploded structure of a control screen module according to an embodiment of the present utility model;

fig. 8 is a schematic diagram of a partially exploded structure of a control screen module according to an embodiment of the utility model (different from fig. 7).

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for purposes of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

Referring to fig. 1 to 8, a range hood includes a blower housing (not shown), a blower cover (not shown) provided at an outer periphery of the blower housing, and a blower system provided in the blower housing, a gap being formed between a front side of the blower housing and a front side of the blower cover. The fan system, the fan frame and the fan outer cover jointly form a fan module, and the control screen module is arranged on the fan module, such as in a gap between the fan frame and the fan outer cover. Such a construction is known in the art, see the applicant's prior patent mentioned in the background.

The manipulation screen module includes a housing 32 and a screen 31 disposed within the housing 32. The screen 31 can be raised and lowered relative to the fan frame so that the screen 31 can be positioned within the housing 32 or at least partially can extend downwardly below the bottom of the housing 32. The housing 32 may be a separate component or may be formed as part of a blower housing or blower enclosure.

The bottom of the casing 32 is provided with a yielding hole 321 for the screen 31 to pass through, and the control screen module further comprises a baffle mechanism capable of opening or closing the yielding hole 321. The shutter mechanism includes a first shutter 336 and a second shutter 342 arranged left and right, the first shutter 336 and the second shutter 342 being movable in directions toward each other to close the relief hole 321, and in directions away from each other to open the relief hole 321. The first and second baffles 341 and 342 are exposed below the blower housing.

The shutter mechanism includes a first movement mechanism that drives the first shutter 336 to move and a second movement mechanism that drives the second shutter 342 to move.

Wherein, first motion includes first connecting rod 331 and third connecting rod 332, and third connecting rod 332 and first connecting rod 331 arrange side by side along the left and right directions, and one of them tip of first connecting rod 331 and third connecting rod 332 all rotates with the left portion inboard of casing 32 and is connected, and the other end of first connecting rod 331 and third connecting rod 332 all rotates with the top of first baffle 336 and is connected, and the pivot direction on first connecting rod 331 and the third connecting rod 332 is the fore-and-aft direction.

The first moving mechanism further includes a first elastic member 333 that resets the first link 331 and the third link 332, and the first link 331 and the third link 332 are reset, i.e., the first shutter 336 is reset to a position closing the left side of the relief hole 321. The first elastic member 333 is preferably a torsion spring, one end of the first elastic member 333 is rotatably connected to the left inner side of the housing 32, and the other end of the first elastic member 333 is rotatably connected to one of the first link 331 and the third link 332. In the present embodiment, the third link 332 is located at the left side of the first link 331, and the first elastic member 333 is disposed on the third link 332.

The first moving mechanism further includes a first press block assembly 334 that enables the first link 331 and the third link 332 to rotate toward the left side to thereby move the first barrier 336 to the left. The first pressing block assembly 334 comprises a first support 3341, a first pressing block 3342 and a second pressing block 3343, the first pressing block 3342 and the second pressing block 3343 are arranged on the first support 3341 at intervals up and down, the size of the first pressing block 3342 is larger than that of the second pressing block 3343, the first pressing block 3342 and the second pressing block 3343 can be abutted against the first connecting rod 331, and therefore when the first support 3341 descends, the second pressing block 3343 and the first pressing block 3342 can push the first connecting rod 331 to rotate step by step, the first baffle 336 is opened, the second pressing block 3343 pushes the first connecting rod 331 first step by step, and then the first pressing block 3342 pushes the first connecting rod 331 again. This is because as the first link 331 rotates, it will gradually move away from the first support 3341 and the second press block 3343 will no longer be able to contact the first link 331, thus requiring the use of a larger sized first press block 3342 for pushing. The first support 3341 is linked with the screen 31, and the left side of the screen 31 is directly or indirectly connected with the first support 3341.

The first moving mechanism further includes a first slider 335 capable of guiding the first support 3341 to be lifted. The first sliding member 335 includes a first fixed rail 3351 and a first sliding rail 3352 slidably engaged with the first fixed rail 3351, the first fixed rail 3351 is connected to the inner side of the housing 32, and the first sliding rail 3352 is connected to the first bracket 3341.

The second movement mechanism has the same structure as the first movement mechanism and is symmetrically arranged. The second movement mechanism comprises a second connecting rod 337 and a fourth connecting rod 338, the second connecting rod 337 and the fourth connecting rod 338 are arranged side by side along the left-right direction, one end of the second connecting rod 337 and one end of the fourth connecting rod 338 are both rotationally connected with the inner side of the right part of the shell 32, the other end of the second connecting rod 337 and the other end of the fourth connecting rod 338 are both rotationally connected with the top of the second baffle 342, and the directions of rotating shafts on the second connecting rod 337 and the fourth connecting rod 338 are all front-back directions.

The second movement mechanism further includes a second elastic member 339 that resets the second and fourth links 337 and 338, i.e., resets the second shutter 342 to a position that closes the right side of the relief hole 321. The second elastic member 339 is preferably a torsion spring, one end of the second elastic member 339 is rotatably coupled to the inside of the right portion of the housing 32, and the other end of the second elastic member 339 is rotatably coupled to one of the second link 337 and the fourth link 338. In the present embodiment, the second link 337 is located at the left side of the fourth link 338, and the second elastic member 339 is disposed on the fourth link 338.

The second moving mechanism further includes a second pressing block assembly 340 that enables the second and fourth links 337 and 338 to rotate toward the right side to thereby move the second shutter 342 toward the right side. The second press block assembly 340 includes a second support 3401, a third press block 3402 and a fourth press block 3403, the third press block 3402 and the fourth press block 3403 are arranged on the second support 3401 at intervals up and down, the size of the third press block 3402 is larger than that of the fourth press block 3403, the third press block 3402 and the fourth press block 3403 can be abutted against the second connecting rod 337, therefore, when the second support 3401 descends, the fourth press block 3403 and the third press block 3402 can push the second connecting rod 337 to rotate step by step, the second baffle 342 is driven to open, the fourth press block 3403 is pushed by step, then the third press block 3402 is pushed again, and the third press block 3402 is far away from the same first movement mechanism. The second bracket 3401 is coupled with the screen 31, and the right side of the screen 31 is directly or indirectly connected with the second bracket 3401.

The second moving mechanism further includes a second slider 341 capable of guiding the second carriage 3401 to be lifted. The second sliding member 341 includes a second fixed rail 3411 and a second sliding rail 3412 slidably engaged with the second fixed rail 3411, where the second fixed rail 3411 is connected to the inner side of the housing 32, and the second sliding rail 3412 is connected to the second bracket 3401.

The manipulation screen module further includes a third movement mechanism for driving the screen 31 to be lifted and lowered. The third motion mechanism has the same structure as the prior art, and comprises a linear driving module, wherein the linear driving module comprises a motor 351, a screw rod 352 and a sliding block 353, the screw rod 352 is longitudinally arranged and driven to rotate by the motor 351, the screw rod 352 can rotate around the axis of the screw rod 352, the sliding block 353 can move along the extending direction of the screw rod 352, and the sliding block 353 is directly or indirectly connected with the screen 31. The third movement mechanism further includes a screen bracket 354, the screen 31 is disposed on the screen bracket 354, and the slider 353 is connected to the screen bracket 354. The first and second brackets 3341 and 3401 may be connected to the screen bracket 354.

Claims (13)

1. The utility model provides a range hood, includes fan module and sets up the screen module of controlling on fan module, control screen module includes casing (32) and screen (31), screen (31) can lift setting relative casing (32) to make screen (31) can be located casing (32) or at least part can stretch out the below of casing (32) bottom downwards, the hole of stepping down (321) that supply screen (31) to pass through are seted up to the bottom of casing (32), its characterized in that:

the control screen module further comprises a baffle mechanism capable of opening or closing the yielding holes (321), the baffle mechanism comprises a first baffle (336) and a second baffle (342) which are arranged left and right, the first baffle (336) and the second baffle (342) can move towards the directions close to each other to close the yielding holes (321) and move towards the directions far away from each other to open the yielding holes (321).

2. The range hood of claim 1, wherein: the baffle mechanism further comprises a first movement mechanism for driving the first baffle (336) to move and a second movement mechanism for driving the second baffle (342) to move, the first movement mechanism comprises a first connecting rod (331), and two ends of the first connecting rod (331) are respectively connected with the shell (32) and the first baffle (336) in a rotating way; the second movement mechanism comprises a second connecting rod (337), and two ends of the second connecting rod (337) are respectively and rotatably connected with the shell (32) and the second baffle (342);

the first movement mechanism further comprises a first pressing block assembly (334) for pushing the first connecting rod (331) to rotate so as to drive the first baffle plate (336) to open the abdication hole (321), the first pressing block assembly (334) is linked with the screen (31), and the second movement mechanism further comprises a second pressing block assembly (340) for pushing the second connecting rod (337) to rotate so as to drive the second baffle plate (342) to open the abdication hole (321);

the first connecting rod (331) and the second connecting rod (337) are kept in reset, so that the corresponding baffle plate closes the tendency of the yielding hole (321).

3. The range hood of claim 2, wherein: the first briquetting subassembly (334) is including first support (3341), first briquetting (3342) and second briquetting (3343), first support (3341) and screen (31) linkage, interval arrangement is on first support (3341) about first briquetting (3342) and second briquetting (3343), the size of first briquetting (3342) is greater than the size of second briquetting (3343), first briquetting (3342) and second briquetting (3343) homoenergetic and first connecting rod (331) butt, first briquetting (3342) and second briquetting (3343) can promote first connecting rod (331) to rotate step by step.

4. A range hood according to claim 3, wherein: the first movement mechanism further comprises a first sliding part (335) capable of guiding the first support (3341) to lift, the first sliding part (335) comprises a first fixed rail (3351) and a first sliding rail (3352) in sliding fit with the first fixed rail (3351), the first fixed rail (3351) is connected with the inner side of the shell (32), and the first sliding rail (3352) is connected with the first support (3341).

5. The range hood of claim 2, wherein: the first movement mechanism further comprises a third connecting rod (332), the first connecting rod (331) and the third connecting rod (332) are arranged side by side, the third connecting rod (332) is arranged on one side, far away from the second connecting rod (337), of the first connecting rod (331), and two ends of the third connecting rod (332) are respectively connected with the shell (32) and the first baffle (336) in a rotating mode.

6. The range hood of claim 5, wherein: the first movement mechanism further includes a first elastic member (333) that keeps the third link (332) restored so as to push the first link (331) to be restored.

7. The range hood of claim 6, wherein: the first elastic piece (333) is a torsion spring, one end of the first elastic piece (333) is connected with the inner side of the shell (32), and the other end of the first elastic piece (333) is connected with the third connecting rod (332).

8. The range hood of claim 2, wherein: the second briquetting subassembly (340) includes second support (3401), third briquetting (3402) and fourth briquetting (3403), second support (3401) and screen (31) linkage, interval arrangement is about third briquetting (3402) and fourth briquetting (3403) on second support (3401), the size of third briquetting (3402) is greater than the size of fourth briquetting (3403), third briquetting (3402) and fourth briquetting (3403) homoenergetic and second connecting rod (337) butt, third briquetting (3402) and fourth briquetting (3403) can promote second connecting rod (337) to rotate step by step.

9. The range hood of claim 8, wherein: the second movement mechanism further comprises a second sliding part (341) capable of guiding the second bracket (3401) to lift, the second sliding part (341) comprises a second fixed rail (3411) and a second sliding rail (3412) in sliding fit with the second fixed rail (3411), the second fixed rail (3411) is connected with the inner side of the shell (32), and the second sliding rail (3412) is connected with the second bracket (3401).

10. The range hood of claim 8, wherein: the second movement mechanism further comprises a fourth connecting rod (338), the second connecting rod (337) and the fourth connecting rod (338) are arranged side by side, the fourth connecting rod (338) is arranged on one side, far away from the first connecting rod (331), of the second connecting rod (337), and two ends of the fourth connecting rod (338) are respectively connected with the shell (32) and the second baffle (342) in a rotating mode.

11. The range hood of claim 10, wherein: the second motion mechanism further includes a second resilient member (339) that maintains the fourth link (338) in a reset position to urge the second link (337) in a reset direction.

12. The range hood of claim 11, wherein: the second elastic piece (339) is a torsion spring, one end of the second elastic piece (339) is connected with the inner side of the shell (32), and the other end of the second elastic piece (339) is rotationally connected with the fourth connecting rod (338).

13. The range hood according to any one of claims 1 to 12, wherein: the control screen module further comprises a third movement mechanism for driving the screen (31) to lift, the third movement mechanism comprises a linear driving module, the linear driving module comprises a motor (351), a screw rod (352) and a sliding block (353), the screw rod (352) is longitudinally arranged and driven by the motor (351) to rotate around the axis of the screw rod, the sliding block (353) can move along the extending direction of the screw rod (352), and the sliding block (353) is directly or indirectly connected with the screen (31).