Range hood with U-shaped groove

Abstract

The utility model belongs to the technical field of kitchen equipment, and particularly discloses a range hood with a U-shaped groove, which comprises a range hood body and an oil baffle component, an inclined air inlet part is arranged at the lower part of the range hood body, an air inlet groove with an opening at the front end and an air inlet hole are arranged on the air inlet part, and the oil baffle component comprises an oil baffle plate and an oil collecting part. The oil baffle plate is arranged at an opening in the front end of the air inlet groove in parallel to form a U-shaped air inlet; the oil collecting part is arranged at the lower end of the range hood body and used for collecting oil drops. Compared with the prior art, by additionally arranging the air inlet groove and the oil baffle plate, a negative pressure environment is created, the area of an air inlet is reduced, air pressure is increased, the smoke inlet efficiency is improved, three-face air inlet is achieved, and the smoke cage effect is improved; and meanwhile, the oil baffle plates arranged in parallel are also beneficial to reducing noise.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, and particularly relates to an oil fume machine with a U-shaped groove. Background Art

[0002] In recent years, with the improvement of living quality, the range hood, as an indispensable household appliance in the kitchen, has become increasingly important. It is usually installed above the kitchen stove. Its main function is to effectively extract the waste gas generated by the combustion of the stove and the harmful oil fume released during the cooking process through the flue, thereby purifying the kitchen environment and reducing air pollution. In order to further optimize its performance, the range hood is usually equipped with an oil baffle structure, which is designed to prevent the grease in the oil fume from directly invading the upper fan and flue, and to prevent the grease dripping from components such as the oil filter net and the machine shell from contaminating the cooker.

[0003] However, when the oil baffle is installed at the air inlet, there are also some potential problems. Due to its physical blocking effect, it may affect the air intake efficiency of the range hood, and thus lead to a reduction in the smoking effect. In addition, when the oil fume passes through the oil baffle, it may generate a certain amount of noise, which has a certain impact on the quiet environment of the kitchen. Therefore, when designing and installing the oil baffle, it is necessary to comprehensively consider its advantages and disadvantages to ensure that it can effectively adsorb the oil fume while maintaining the good smoking effect of the range hood and the quiet environment of the kitchen. Summary of the Invention

[0004] The invention object of the utility model is to solve the problem that the smoking efficiency of the existing range hood with an oil baffle is reduced, and to provide an oil fume machine with a U-shaped groove.

[0005] To achieve the above invention object, the utility model adopts the following technical solutions:

[0006] The oil fume machine with a U-shaped groove includes a range hood body and an oil baffle assembly. An inclined air inlet part is provided at the lower part of the range hood body. An air inlet groove with a front-end opening is provided on the air inlet part, and air inlet holes are provided on the air inlet groove. The oil baffle assembly includes an oil baffle and an oil collecting part. The oil baffle is arranged parallel to the front-end opening of the air inlet groove, and there is a preset width between it and the upper end and both sides of the opening to form a U-shaped air inlet. The oil collecting part is arranged at the lower end of the range hood body, and its upper end is open for collecting the oil drops sliding down along the oil baffle.

[0007] Compared with the prior art, the range hood of the present utility model is provided with an air inlet groove at the air inlet part. The oil baffle is arranged at the opening of the air inlet groove, jointly creating a negative pressure environment with the inner side of the air inlet groove, and reducing the area of the air inlet, increasing the wind pressure at the air inlet, thereby being beneficial to improving the smoke intake efficiency, forming a U-shaped air inlet, thus realizing three-sided air intake at the air inlet, which is beneficial to improving the smoke gathering effect; in addition, the oil baffle is arranged parallel to the opening of the air inlet groove, which is beneficial to reducing noise.

[0008] Further, the left and right and upper side walls of the air inlet groove are inclined walls, the oil baffle is opposite to its bottom wall, and the air inlet holes are arranged on its bottom wall. The inclined walls of this solution have the functions of guiding air and blocking oil. The flue gas is guided into the inner side of the air inlet groove, and then enters the air duct inside the range hood through the bottom wall of the air inlet groove. When passing through the inclined walls and entering the inner side of the air inlet groove, the oil particles are adsorbed on the inclined walls and condensed on the inclined walls, and slide down along the inclined walls to the oil collecting part.

[0009] Further, the included angle between the side wall and the bottom wall of the air inlet groove is between 130° and 140°, which can further optimize the flow path of the oil smoke.

[0010] Further, the area ratio of the air inlet to the front end opening of the air inlet groove is between 1 / 7 and 3 / 7. In this solution, the ratio setting of the air inlet can avoid the direct entry of the oil smoke into the inner side of the air inlet groove due to the too large air inlet, and at the same time avoid affecting the smoking efficiency due to the too small area of the air inlet.

[0011] Further, the preset width includes a first width b1 and a second width b2. The first width b1 is the distance from the left and right sides of the air inlet to the oil baffle, and the second width b2 is the distance from the upper side of the air inlet to the oil baffle, and the ratio of the first width b1 to the length L1 of the air inlet groove port is between 1 / 7 and 1 / 5, and the ratio of the second width b2 to the height B1 of the air inlet groove port is between 1 / 7 and 1 / 5.

[0012] Further, a filter cavity is formed inside the oil baffle, a first filter hole is provided on its front side, a second filter hole is provided on its rear side, and the positions of the first filter hole and the second filter hole are staggered from each other. The oil baffle structure of this solution is beneficial to increasing the air intake volume of the air inlet groove. The flue gas can enter the inner side of the air inlet groove through the oil baffle, and when passing through the oil baffle, due to the staggered positions of the first filter hole and the second filter hole, the oil particles in the flue gas can be adsorbed on the oil baffle.

[0013] Further, the first filter hole is located at the lower part of the oil baffle, and the second filter hole is located at the upper part of the oil baffle. This solution can further improve the effect of the oil baffle in sucking smoke and blocking oil.

[0014] Further, the first filter hole is a strip-shaped hole, and the second filter hole is a round hole. In this solution, the shape of the first filter hole is set as a strip to increase its smoke intake. At the same time, the shape of the second filter hole is set as a round hole, which can increase its wind pressure and further improve its oil-blocking effect.

[0015] Further, the oil baffle includes a front baffle and a rear baffle. The edges of the front baffle and the rear baffle are connected by a connecting wall and enclose to form the filter cavity.

[0016] Further, an installation structure is provided between the oil baffle and the air inlet part, and the oil baffle is detachably connected to the range hood body through the installation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the range hood;

[0018] Figure 2 is a front view of the range hood;

[0019] Figure 3 is a sectional view;

[0020] Figure 4 is an exploded view of the range hood Figure 1 ;

[0021] Figure 5 is an exploded view of the range hood Figure 2 ;

[0022] Figure 6 is a bottom view of the range hood.

[0023] Reference Numerals:

[0024] Range hood body 1, air inlet part 2, air inlet slot 20, air inlet hole 21, air inlet 22, oil-blocking assembly 3, oil baffle 4, oil collecting part 5, filter cavity 41, first filter hole 42, second filter hole 43, front baffle 44, rear baffle 45, connecting wall 46, hanging structure 51, hanging part 511, hook 512, snap structure 52, first clamping part 521, second clamping part 522, clamping slot 523, clamping projection 524. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes the technical solution of the present invention according to the drawings:

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by "upper", "lower", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] See Figures 1-6 As shown, the present utility model discloses an oil fume machine with a U-shaped groove, which includes a smoke machine body 1 and an oil blocking assembly 3. An inclined air inlet part 2 is provided at the lower part of the smoke machine body 1. An air inlet groove 20 with an open front end is provided on the air inlet part 2, and an air inlet hole 21 is provided on the air inlet groove 20; the oil blocking assembly 3 includes an oil baffle 4 and an oil collecting part 5. The oil baffle 4 is arranged at the front end opening of the air inlet groove 20, and there is a preset width between it and the upper end and both sides of the opening to form a U-shaped air inlet 22. The oil collecting part 5 is arranged at the lower end of the smoke machine body 1, and its upper end is open for collecting oil droplets sliding down along the oil baffle 4.

[0028] As Figure 3 shown, the above-mentioned oil baffle 4 is parallel to the opening of the air inlet groove 20, and the installation error of the oil baffle 4 does not exceed the preset error ∠A, where the range of ∠A is between -0.5° and 3.0°, and it can be -0.5°, 0°, 0.5°, 1.0°, 1.5°, 2.0°, 2.5°, 3.0°.

[0029] The side walls of the left, right and upper sides of the above-mentioned air inlet groove 20 are inclined walls, which play a role in guiding air and blocking oil. Oil particles are adsorbed on the inclined walls and condense on the inclined walls, and slide down along the inclined walls to the oil collecting part. The oil baffle 4 is opposite to its bottom wall, and the air inlet holes 21 are arranged on its bottom wall. After the flue gas is guided into the inner side of the air inlet groove 20, it then enters the air duct inside the smoke machine through the bottom wall of the air inlet groove 20. When passing through the inclined walls and entering the inner side of the air inlet groove 20.

[0030] The included angle between the side wall and the bottom wall of the above-mentioned air inlet groove 20 is between 130° and 140°, and it can be 130°, 132°, 134°, 136°, 138°, 140°, which can further optimize the flow path of the oil fume.

[0031] To avoid the air inlet being too large and allowing the oil fume to directly enter the inner side of the air inlet groove, and at the same time avoid the air inlet area being too small and affecting the smoking efficiency, the area ratio of the above-mentioned air inlet 22 to the front end opening of the air inlet groove 20 is between 1 / 7 and 3 / 7.

[0032] The above-mentioned preset width includes a first width b1 and a second width b2. The first width b1 is the distance from the left and right sides of the air inlet 22 to the oil baffle 4. The second width b2 is the distance from the upper side of the air inlet 22 to the oil baffle 4. And the ratio of the first width b1 to the length L1 of the port of the air inlet groove 20 is between 1 / 7 and 1 / 5, and it can be 1 / 7, 1 / 6, 1 / 5. The ratio of the second width b2 to the height B1 of the port of the air inlet groove 20 is between 1 / 7 and 1 / 5, and it can be 1 / 7, 1 / 6, 1 / 5.

[0033] To further increase the air intake volume of the air inlet slot 20 and improve the smoking efficiency, a filter cavity 41 is formed inside the above-mentioned oil baffle 4. A first filter hole 42 is provided on the front side thereof, and a second filter hole 43 is provided on the rear side thereof. Moreover, the positions of the first filter hole 42 and the second filter hole 43 are staggered, so that the oil fume can enter the inner side of the air inlet slot 20 through the oil baffle. Since the positions of the first filter hole 42 and the second filter hole 43 are staggered from each other, the oil particles in the flue gas can be adsorbed on the oil baffle 4. Preferably, the staggered distance between the first filter hole 42 and the second filter hole 43 is in the range of 5 cm - 9 cm.

[0034] To further improve the smoking and oil-blocking effect of the oil baffle 4, the above-mentioned first filter hole 42 is located at the lower part of the oil baffle 4, and the second filter hole 43 is located at the upper part of the oil baffle 4.

[0035] The above-mentioned first filter hole 42 is a strip-shaped hole, and the second filter hole 43 is a round hole. In this solution, by setting the shape of the first filter hole 42 as a strip shape, the smoke intake volume can be increased. At the same time, by setting the shape of the second filter hole 43 as a round hole, the air pressure can be increased, and the oil-blocking effect can be further improved.

[0036] The opening area of the above-mentioned first filter hole 42 accounts for 10% to 30% of the area of the front side of the oil baffle, which can be 10%, 15%, 20%, 25%, 30%. And the opening area of the second filter hole 43 is between 50% and 100% of the area of the first filter hole 42, which can be 50%, 60%, 70%, 80%, 90%, 100%.

[0037] The above-mentioned oil baffle 4 includes a front baffle 44 and a rear baffle 45. The edges of the front baffle 44 and the rear baffle 45 are connected by a connecting wall 46 and enclose to form the filter cavity 41.

[0038] To achieve the detachable assembly of the oil baffle 4, an installation structure is provided between the above-mentioned oil baffle 4 and the air inlet part 2. The oil baffle 4 is detachably connected to the range hood body 1 through the installation structure.

[0039] The above-mentioned installation structure is symmetrically arranged left and right. It includes a hanging structure 51 and a buckling structure 52, and the buckling structure 52 and the hanging structure 51 are distributed up and down.

[0040] The above-mentioned hanging structure 51 includes a hanging part 511 provided on the air inlet slot 20 and a hook 512 provided on the oil baffle 4. The buckling structure 52 includes a first clamping part 521 provided on the air inlet slot 20 and a second clamping part 522 provided on the oil baffle 4. A clamping groove 523 is provided on the first clamping part 521, and a clamping convex 524 is provided on the first clamping part 521. The clamping convex 524 is clamped and connected with the clamping groove 523.

[0041] Compared with the prior art, the range hood of the present utility model is provided with an air inlet groove 20 in the air inlet part 2. The oil baffle 4 is arranged parallel to the opening of the air inlet groove 20, jointly creating a negative pressure environment with the inner side of the air inlet groove 20, and reducing the area of the air inlet 22, so that the air pressure at the air inlet 22 increases, which is beneficial to improving the smoke inlet efficiency. The oil baffle 4 is parallel to the port of the air inlet groove 20, forming a U-shaped air inlet 22, thus realizing three-sided air inlet of the air inlet 22, which is beneficial to improving the smoke gathering effect; in addition, the oil baffle 4 is arranged parallel to the opening of the air inlet groove 20, which is beneficial to reducing noise.

[0042] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. According to the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. An oil fume machine with a U-shaped groove, comprising a machine body (1) of the oil fume machine and an oil baffle assembly (3), characterized in that: The lower part of the range hood body (1) is provided with an inclined air inlet part (2). An air inlet groove (20) with an opening at the front end is provided on the air inlet part (2), and air inlet holes (21) are provided on the air inlet groove (20). The oil baffle assembly (3) includes an oil baffle (4) and an oil collection part (5). The oil baffle (4) is arranged at the front-end opening of the air inlet groove (20), and there is a preset width between the upper end and both sides of the opening to form a U-shaped air inlet (22). The oil collection part (5) is arranged at the lower end of the range hood body (1) with an opening at the upper end.

2. The range hood according to claim 1, wherein, The left, right and upper side walls of the air inlet groove (20) are inclined walls. The oil baffle (4) is opposite to its bottom wall, and the air inlet holes (21) are arranged on its bottom wall.

3. The range hood according to claim 2, characterized in that, The included angle between the side wall and the bottom wall of the air inlet groove (20) is between 130° and 140°.

4. The range hood according to claim 2, wherein, The area ratio of the air inlet (22) to the front-end opening of the air inlet groove (20) is between 1 / 7 and 3 / 7.

5. The range hood according to claim 1, wherein The preset width includes a first width b1 and a second width b2. The first width b1 is the distance from the left and right side edges of the air inlet (22) to the oil baffle (4), and the second width b2 is the distance from the upper side edge of the air inlet (22) to the oil baffle (4). The ratio of the first width b1 to the length L1 of the port of the air inlet groove (20) is between 1 / 7 and 1 / 5, and the ratio of the second width b2 to the height B1 of the port of the air inlet groove (20) is between 1 / 7 and 1 / 5.

6. The range hood according to claim 1, wherein, A filter cavity (41) is formed inside the oil baffle (4). A first filter hole (42) is provided on its front side, and a second filter hole (43) is provided on its rear side, and the positions of the first filter hole (42) and the second filter hole (43) are staggered from each other.

7. The range hood according to claim 6, wherein, The first filter hole (42) is located at the lower part of the oil baffle (4), and the second filter hole (43) is located at the upper part of the oil baffle (4).

8. The range hood according to claim 6, wherein The first filter hole (42) is a strip-shaped hole, and the second filter hole (43) is a round hole.

9. The range hood according to claim 8, characterized in that, The oil baffle (4) includes a front baffle (44) and a rear baffle (45). The edges of the front baffle (44) and the rear baffle (45) are connected by a connecting wall (46) to enclose and form the filter cavity (41).

10. The range hood according to claim 1, characterized in that, An installation structure is provided between the oil baffle (4) and the air inlet part (2). The oil baffle (4) is detachably connected to the range hood body (1) through the installation structure.

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