CN216790287U

CN216790287U - Fume exhaust fan

Info

Publication number: CN216790287U
Application number: CN202122588905.3U
Authority: CN
Inventors: 唐兴旺; 鲍宝申
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-06-21
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a range hood, which comprises a smoke collecting hood and a fan frame arranged above the smoke collecting hood, wherein the smoke collecting hood comprises a top plate, a mounting hole is formed in the top plate, the lower end part of the fan frame penetrates through the mounting hole, so that the top plate is coated on the periphery of the lower end part of the fan frame, the fan frame comprises a first front side plate positioned on the front side, and the edge of the mounting hole is bent downwards to form a first flanging, and the range hood is characterized in that: the range hood further comprises a connecting assembly, the connecting assembly comprises a connecting plate, the connecting plate is arranged on the inner side of the lower end portion of the first front side plate close to the fan frame, and the first flanging, the first front side plate and the connecting plate are sequentially connected and fixed. Compared with the prior art, the utility model has the advantages that: the connecting plate is arranged at the joint of the fan frame and the smoke collecting hood, so that the connecting strength of the fan frame and the smoke collecting hood can be enhanced.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil fume purification device, in particular to a range hood.

Background

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

A conventional range hood, such as the top suction range hood disclosed in chinese patent with application number 201821996599.9, includes: the smoke-exhausting device comprises a box shell, wherein an air duct is arranged in the box shell, and a smoke inlet is formed in the bottom of the box shell; the fan is arranged in the box shell and comprises a volute and a centrifugal wind wheel, a front inlet is formed in the front surface of the volute, a rear inlet is formed in the rear surface of the volute, the centrifugal wind wheel is arranged in the volute, the rotation axis of the centrifugal wind wheel is arranged in the front-rear direction, and air enters from the front inlet and the rear inlet when the centrifugal wind wheel rotates.

The connection position between the upper part of the box shell used for containing the fan system and the lower part forming the smoke collection cavity is weak; the box shell is used for accommodating oil stains dropping from the upper part of the fan system and is easy to splash and drop downwards at the bottom of the smoke collecting hood; in addition, range hood's structure is more and more complicated, how can be in the user's family can be through tearing open after getting the fan cover, tear open parts such as impeller, motor again, be the problem that needs solve urgently.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a range hood which can enhance the connection strength of a smoke collecting hood and a fan frame aiming at the defects existing in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a range hood, includes collection petticoat pipe and sets up the fan frame in collection petticoat pipe top, the collection petticoat pipe includes the roof, the installing port has been seted up on the roof, the lower tip of fan frame passes the installing port to the roof cladding is peripheral at the lower tip of fan frame, the fan frame is including the first preceding curb plate that is located the front side, the border downward bending type of installing port is formed with first turn-ups, its characterized in that: the range hood further comprises a connecting assembly, the connecting assembly comprises a connecting plate, the connecting plate is arranged on the inner side of the lower end portion of the first front side plate close to the fan frame, and the first flanging, the first front side plate and the connecting plate are sequentially connected and fixed.

In order to guide the oil stain dropping on the bottom panel assembly to flow downwards along the panel assembly and the filter screen and be collected in the oil cup, so that the oil stain is prevented from splashing or dropping through the panel assembly to pollute the environment, and potential safety hazards are eliminated.

In order to receive oil stains flowing down on the fan frame conveniently, the upper end of the guide plate is bent to form a second flanging extending upwards, the second flanging is attached to one side, away from the first front side plate of the fan frame, of the first flanging on the front side, so that the first flanging of the top plate is clamped between the guide plate and the first front side plate of the fan frame, and the lower end portion of the first front side plate of the connecting plate and the fan frame corresponds to the guide plate and is located above the guide plate.

In order to avoid the situation that the screws are exposed and protruded after the fan frame and the connecting plate are fixed, a first sunk platform is arranged on the connecting plate, a sunk hole is formed in the position, corresponding to the first sunk platform, of the first front side plate of the fan frame, and the sunk hole and the first sunk platform are sequentially penetrated through the sunk screws, so that the first front side plate and the connecting plate are fixedly connected.

For the fan frame and the connecting plate location of being convenient for, still be provided with the protruding bud forward on the connecting plate, the relevant position of the first preceding curb plate of fan frame is formed with the groove of stepping down, the shape, the size and the position in groove of stepping down all correspond with the protruding bud, the groove of stepping down is upwards sunken and form by the lower extreme of first preceding curb plate, the protruding bud can penetrate the inslot of stepping down.

In order to connect guide plate, collection petticoat pipe, fan frame and connecting plate fixedly, still be provided with the protruding bud of bellied forward on the connecting plate, the relevant position of the first preceding curb plate of fan frame is formed with the groove of stepping down, the shape, size and the position in groove of stepping down all correspond with the protruding bud, the groove of stepping down is formed by the lower extreme undercut of first preceding curb plate, the protruding bud can penetrate the inslot of stepping down, the position and first turn-ups and the second turn-ups of protruding bud all correspond, pass second turn-ups, first turn-ups and protruding bud through the screw in proper order to connect guide plate, roof and connecting plate fixedly.

The fan frame further comprises a left side plate and a right side plate which are arranged at left and right intervals, and the first front side plate is detachably connected between the front side ends of the left side plate and the right side plate.

For making the connecting plate and the fan frame about the curb plate connect the back and flush, the left and right sides of connecting plate is provided with the heavy platform of second, the preceding tip right buckling type of left side board has formed the third turn-ups, the preceding tip left buckling type of right side board has formed the fourth turn-ups, the connecting plate is located the turn-ups of third and fourth turn-ups rear side, the third turn-ups and fourth turn-ups are provided with the heavy platform of third respectively with the heavy platform of second corresponding position, the heavy platform of third is arranged in the heavy platform of second backward by preceding.

In order to facilitate the installation and positioning of the left side plate and the right side plate of the connecting plate and the air rack, positioning bracts are arranged on the left side and the right side of the connecting plate, a third flanging is formed by bending the front end portion of the left side plate rightwards, a fourth flanging is formed by bending the front end portion of the right side plate leftwards, the connecting plate is located on the rear sides of the third flanging and the fourth flanging, positioning holes are formed in the third flanging and the fourth flanging respectively, and the positioning bracts penetrate into the positioning holes.

Preferably, the structure of fan frame and collection petticoat pipe does, the fan frame still includes the interval and sets up the first posterior lateral plate in first preceding curb plate rear side, the collection petticoat pipe still includes preceding curb plate of second and the second posterior lateral plate that the interval set up around, the roof is connected between the top of preceding curb plate of second and second posterior lateral plate, first posterior lateral plate and second posterior lateral plate position correspond and interconnect.

Compared with the prior art, the utility model has the advantages that: the connecting plate is arranged at the connecting position of the fan frame and the smoke collecting hood, so that the connecting strength of the fan frame and the smoke collecting hood can be enhanced; by arranging the guide plate, oil stains flowing downwards from the fan frame and the connecting plate can be guided to the panel assembly by the guide plate and flow into the oil cup through the filter screen, so that splashing or dripping through the panel assembly to pollute the environment is avoided, and potential safety hazards are eliminated; the connecting plate is fixedly connected with the guide plate and the top plate, so that the rigidity of the front end of the smoke collecting hood is enhanced; the connecting plate is connected with the left side plate and the right side plate of the fan frame, so that the rigidity of the left side and the right side of the fan frame is enhanced.

Drawings

FIG. 1 is a schematic view of a range hood according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a range hood in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion I of FIG. 2;

fig. 4 is a schematic view of a fan frame and a deflector of the range hood according to the embodiment of the present invention;

FIG. 5 is a schematic view of a fan frame of the range hood according to the embodiment of the present invention;

FIG. 6 is a schematic view of a first front side plate of the hidden blower housing of FIG. 5;

FIG. 7 is an enlarged view of a portion II of FIG. 6;

fig. 8 is a schematic view of a connection assembly of a range hood according to an embodiment of the present invention;

fig. 9 is a schematic view of a top plate and a second rear side plate of a smoke collecting hood of a range hood according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like 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 invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 3, a range hood includes a smoke collecting cover 1, a fan frame 2 disposed above the smoke collecting cover 1, and a fan system 3 disposed in the fan frame 2. The collection petticoat pipe 1 is the cavity cover body that the front is high back low, and the bottom surface of collection petticoat pipe 1 is open shape to be provided with panel components 4 in this uncovered department, seted up air intake 41 on the panel components 4, air intake 41 department is provided with filter screen 5, and air intake 41 and filter screen 5 are by preceding back downward sloping gradually. An oil cup 6 is arranged at the bottom of the rear side of the smoke collecting cover 1, and the front end part of the oil cup 6 is positioned in front of the rear end part of the filter screen 5 so as to receive oil stains flowing down from the rear end part of the filter screen 5.

The fan frame 2 comprises a first front side plate 21, a first rear side plate 22 and an air outlet plate 23 positioned between the tops of the first front side plate 21 and the first rear side plate 22, wherein the first front side plate 21 and the second rear side plate 22 are arranged at intervals in the front-back direction.

The fume collecting hood 1 includes a second front side plate 11, a second rear side plate 12, and a top plate 13 disposed between tops of the second front side plate 11 and the second rear side plate 12, and the second front side plate 11 and the second rear side plate 12 are arranged at a front-rear interval. The top plate 13 is covered on the periphery of the lower end part of the fan frame 2, the first rear side plate 22 of the fan frame 2 corresponds to and is connected with the second rear side plate 12 of the smoke collecting hood 1, and the bottom of the second front side plate 11 is higher than the bottom of the second rear side plate 12. The fume collecting cover 1 further includes a baffle 14 extending gradually obliquely downward from a lower end portion of the first front side plate 21 of the fan frame 2 toward a front end portion of the screen 5.

If the top plate 13 is provided with a mounting opening 132 at a middle position, the fan frame 2 passes through the mounting opening 132, so that the top plate 13 covers the periphery of the lower end of the fan frame 2. The edge of the mounting opening 132 of the top plate 13 is bent downward to form a first flange 131, and the first flange 131 is attached to the fan frame 2. The upper end of the baffle 14 is bent to form a second flanging 141 extending upwards, and the second flanging 141 is attached to the side, away from the first front side plate 21 of the fan frame 2, of the first flanging 131 at the front side, so that the first flanging 131 of the top plate 13 is clamped between the baffle 14 and the fan frame 2.

The range hood also comprises a connecting assembly which is arranged at the connecting position of the front sides of the fan frame 2 and the smoke collecting hood 1. The connecting assembly comprises a connecting plate 71, the connecting plate 71 is arranged on the inner side close to the lower end part of the first front side plate 21 of the fan frame 2, and the connecting plate 71 and the lower end part of the first front side plate 21 of the fan frame 2 are positioned above the flow guide plate 14. From this, when the greasy dirt of the inboard (internal surface) of first preceding curb plate 21 of fan frame 2 flowed down from the eminence, some greasy dirt flowed to the internal surface of connecting plate 71, flowed to guide plate 14 again, some greasy dirt penetrated the clearance between first preceding curb plate 21 of fan frame 2 and the connecting plate 71, flowed down again on guide plate 14, because of guide plate 14 is the structure in the outsourcing, the greasy dirt that passes the clearance like this still can be caught by guide plate 14, flow down again in the filter screen 5.

Referring to fig. 4 to 9, a first counter sink 72 is disposed on the connecting plate 71, preferably, in a shape of a bridge protruding backward, the first front side plate 21 of the fan frame 2 is a detachable component, and a counter sink 211 is disposed at a corresponding position, and a counter sink screw (not shown) can sequentially pass through the counter sink 211 and the first counter sink 72, so as to connect and fix the first front side plate 21 and the connecting plate 71. The first countersunk head 72 and the countersunk hole 211 cooperate to prevent the countersunk screw from being exposed. Therefore, the first front side plate 21 of the fan frame 2 and the top plate 13 of the smoke collecting cover 1 are connected into a whole, and the rigidity of the front side of the smoke collecting cover 1 is enhanced (the front side of the smoke collecting cover 1 is usually cut off a large allowance opening for installing a switch).

The connecting plate 71 is further provided with a convex bract 73 protruding forwards, preferably, the convex bract 73 can be in a U shape with a downward opening, the convex bract 73 is positioned below the first sinking platform 72, the position of the convex bract corresponds to the first flanging 131 and the second flanging 141, a yielding groove 212 is formed in the corresponding position of the first front side plate 21 of the fan frame 2, preferably, the convex bract is also in a U shape with a downward opening, and the shape, the size and the position of the yielding groove 212 all correspond to the convex bract 73. The receding groove 212 is formed by the lower end of the first front side plate 21 being depressed upward, whereby the bud 73 penetrates into the receding groove 212 to position the blower housing 2 and the connecting plate 71 in cooperation with the receding groove 212, the thickness of the bud 73 is greater than the thickness of the material of the first front side plate 21, and the first front side plate 21 can be freely inserted into the gap between the connecting plate 71 and the top plate 13. Fasteners, such as screws (not shown), may be sequentially inserted through the second flange 14 of the baffle 14, the first flange 131 of the top plate 13, and the bract 73, thereby fixedly connecting the baffle 14, the top plate 13, and the connection plate 71.

Therefore, when the first front side plate 21 needs to be removed, the screw on the first front side plate 21 can be directly removed without removing other parts, which is one of the most important functions of the connecting assembly. Thereafter, the fan system 3 may be disassembled again.

The left and right sides of the connecting plate 71 are designed with a second sinking platform 74 and a positioning bract 75, the second sinking platform 74 is preferably in a bridge shape protruding backwards, the fan frame 2 further comprises a left side plate 24 and a right side plate 25 arranged at left and right intervals, the left side plate 24 is arranged between the left end parts of the first front side plate 21 and the first back side plate 22, the right side plate 25 is arranged between the right end parts of the first front side plate 21 and the first back side plate 22, namely, the first front side plate 21 is connected between the front side end parts of the left side plate 24 and the right side plate 25, and the first back side plate 22 is connected between the back end parts of the left side plate 24 and the right side plate 25. The first front plate 21, the first rear plate 22, the outlet plate 23, the left side plate 24, and the right side plate 25 described above constitute the box-shaped fan frame 2. The left side plate 24 and the right side plate 25 may adopt the same structure and be symmetrically arranged. The front end of the left side plate 24 is bent rightwards to form a third flange 241, the front end of the right side plate 25 is bent leftwards to form a fourth flange 251, and the connecting plate 71 is located on the rear side of the third flange 241 and the fourth flange 251. The third flanging 241 and the fourth flanging 251 are provided with third sinking platforms 26 at positions corresponding to the second sinking platforms 74, and the third sinking platforms 26 are preferably U-shaped. The third sinking platform 26 is arranged in the second sinking platform 74 from front to back, and the second sinking platform 74 is used for giving way to the third sinking platform 26. Therefore, after the fan frame 2 is connected with the connecting plate 71, the front surface of the fan frame 2 is flush with the front surface of the connecting plate 71, and the parts of the fan frame 2 except the first front side plate 21 (the first front side plate 21 is a detachable part) are integrally reinforced into a square shape from a C shape, so that the strength and rigidity of the left side and the right side of the fan frame 2 are greatly enhanced. Screws may pass through the third and second sinking tables 26 and 74, thereby fixedly coupling the fan frame 2 and the connection plate 71. The third flange 241 and the fourth flange 251 are further respectively provided with a positioning hole 27, and the positioning bract 75 can penetrate into the positioning hole 27 from back to front so as to be positioned when the connecting plate 71 is installed.

Claims

1. The utility model provides a range hood, includes collection petticoat pipe (1) and fan frame (2) of setting in collection petticoat pipe (1) top, collection petticoat pipe (1) includes roof (13), installing port (132) have been seted up on roof (13), installing port (132) are passed to the lower tip of fan frame (2) to roof (13) cladding is peripheral at the lower tip of fan frame (2), fan frame (2) are including first preceding curb plate (21) that are located the front side, the border downward bending type of installing port (132) is formed with first turn-ups (131), its characterized in that: the range hood further comprises a connecting assembly, the connecting assembly comprises a connecting plate (71), the connecting plate (71) is arranged on the inner side of the lower end portion of the first front side plate (21) close to the fan frame (2), and the first flanging (131), the first front side plate (21) and the connecting plate (71) are sequentially connected and fixed.

2. The range hood of claim 1, wherein: the bottom of collection petticoat pipe (1) is provided with panel components (4), air intake (41) have been seted up on panel components (4), air intake (41) department is provided with filter screen (5), filter screen (5) are by preceding downward sloping extension gradually backward, the rear side bottom of collection petticoat pipe (1) is provided with oil cup (6) that can accept the greasy dirt that filter screen (5) flowed down, collection petticoat pipe (1) still includes guide plate (14), guide plate (14) extend to the preceding tip of filter screen (5) slope gradually downwards from the tip under first preceding curb plate (21) of fan frame (2).

3. The range hood of claim 2, wherein: the upper end of the guide plate (14) is bent to form a second flanging (141) extending upwards, the second flanging (141) is attached to one side, away from the first front side plate (21) of the fan frame (2), of the first flanging (131) on the front side, so that the first flanging (131) of the top plate (13) is clamped between the guide plate (14) and the first front side plate (21) of the fan frame (2), and the lower end portion of the first front side plate (21) of the connecting plate (71) and the fan frame (2) corresponds to the guide plate (14) and is located above the guide plate (14).

4. The range hood according to any one of claims 1 to 3, wherein: be provided with first heavy platform (72) on connecting plate (71), counter sink (211) have been seted up with first heavy platform (72) corresponding position on first preceding curb plate (21) of fan frame (2), pass counter sink (211) and first heavy platform (72) in proper order through countersunk head screw to it is fixed with first preceding curb plate (21) and connecting plate (71) connection.

5. The range hood according to any one of claims 1 to 3, wherein: still be provided with forward bellied bud (73) on connecting plate (71), the relevant position of the first preceding curb plate (21) of fan frame (2) is formed with the groove of stepping down (212), the shape, size and the position of the groove of stepping down (212) all correspond with bud (73), the groove of stepping down (212) is upwards sunken and form by the lower extreme of first preceding curb plate (21), bud (73) can penetrate in the groove of stepping down (212).

6. The range hood of claim 3, wherein: still be provided with forward bellied bud (73) on connecting plate (71), the relevant position of the first preceding curb plate (21) of fan frame (2) is formed with the groove of stepping down (212), the shape, size and the position of the groove of stepping down (212) all correspond with bud (73), the groove of stepping down (212) is formed by the lower extreme undercut of first preceding curb plate (21) to the upper strata, in bud (73) can penetrate the groove of stepping down (212), the position and first turn-ups (131) and second turn-ups (141) of bud (73) all correspond, pass second turn-ups (141), first turn-ups (131) and bud (73) in proper order through the fastener to connect baffle (14), roof (13) and connecting plate (71) fixedly.

7. A range hood according to any one of claims 1 to 3, wherein: the fan frame (2) further comprises a left side plate (24) and a right side plate (25) which are arranged at left and right intervals, and the first front side plate (21) is detachably connected between the front side ends of the left side plate (24) and the right side plate (25).

8. The range hood of claim 7, wherein: the left and right sides of connecting plate (71) is provided with the heavy platform of second (74), the preceding tip of left side board (24) is bent to the right and is formed with third turn-ups (241), the preceding tip of right side board (25) is bent to the left and is formed with fourth turn-ups (251), connecting plate (71) are located the rear side of third turn-ups (241) and fourth turn-ups (251), the position that corresponds with heavy platform of second (74) on third turn-ups (241) and fourth turn-ups (251) is provided with heavy platform of third (26) respectively, heavy platform of third (26) is arranged in heavy platform of second (74) by preceding the back in.

9. The range hood of claim 7, wherein: the left side and the right side of the connecting plate (71) are provided with positioning bracts (75), the front end of the left side plate (24) is bent rightwards to form a third flanging (241), the front end of the right side plate (25) is bent leftwards to form a fourth flanging (251), the connecting plate (71) is located on the rear sides of the third flanging (241) and the fourth flanging (251), the third flanging (241) and the fourth flanging (251) are respectively provided with a positioning hole (27), and the positioning bracts (75) penetrate into the positioning holes (27).

10. The range hood according to any one of claims 1 to 3, wherein: the fan frame (2) further comprises a first rear side plate (22) arranged on the rear side of the first front side plate (21) at intervals, the smoke collecting hood (1) further comprises a second front side plate (11) and a second rear side plate (12) arranged on the front side and the rear side at intervals, the top plate (13) is connected between the tops of the second front side plate (11) and the second rear side plate (12), and the first rear side plate (22) and the second rear side plate (12) correspond in position and are connected with each other.