Smoke blocking assembly and range hood comprising same

Abstract

The utility model provides a smoke blocking assembly and a range hood comprising the same, the smoke blocking assembly is hinged to an air inlet of the range hood, the smoke blocking assembly comprises a flow guide part, a smoke blocking part and a smoke blocking part, the flow guide part is hinged to the air inlet, and the size of the flow guide part is smaller than that of the air inlet; the smoke gathering part is arranged close to the kitchen range, one end of the smoke gathering part is hinged to the end, away from the air inlet, of the flow guide part, driving parts are arranged on the flow guide part and the smoke gathering part, and when the air inlet is opened, the flow guide part and the smoke gathering part move in the direction away from the air inlet through the driving parts; and the opening angle of the smoke gathering part is greater than that of the flow guide part. Namely, the smoke gathering part keeps a large opening angle all the time when the air inlet is opened, and the smoke gathering effect is improved. And the situation that smoke cannot be effectively collected due to the fact that the opening angle of a single smoke barrier is smaller when the cooking range generates less oil smoke is avoided.

Description

Technical Field

[0001] The utility model particularly relates to a smoke shielding component and a range hood comprising the same. Background Art

[0002] A range hood is an electrical appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly extract the waste from stove combustion and the fumes harmful to the human body generated during the cooking process and discharge them outdoors. At the same time, it condenses and collects the fumes to reduce pollution and purify the air. It has become one of the indispensable kitchen appliances in modern families.

[0003] Bringing the range hood's air inlet closer to the source of oil smoke is a highly effective way to improve oil smoke extraction, leading to the emergence of close-suction range hoods. Furthermore, smoke baffles are widely used in range hoods. Compared to range hoods without smoke baffles, these baffles can shift the negative pressure area downward, effectively expanding the smoke collection range and preventing oil smoke from escaping.

[0004] The existing technology adapts to different cooking scenarios by adjusting the opening angle of the smoke deflector: when the amount of oil smoke is small, the air volume is small, and the opening angle of the smoke deflector is small; when the amount of oil smoke is large, the air volume is large, and the opening angle of the smoke deflector is large. This method of matching the opening angle of the smoke deflector according to the air volume can ensure sufficient rising air intake speed even in low air volume conditions, which is conducive to ensuring the oil fume extraction effect while saving energy and reducing consumption. However, a disadvantage is that changes in the opening angle of a single smoke deflector will directly affect the smoke collection range of the range hood. In particular, when the opening angle of the smoke deflector is reduced, the smoke collection range becomes smaller, which is easily affected by the range hood's oil fume extraction effect, has poor anti-interference ability, and is easy to escape. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defect in the prior art that oil smoke easily escapes when a single smoke shield is opened at a small angle, and to provide a smoke shield assembly and a range hood comprising the same.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A smoke shield assembly is hinged to the air inlet of a range hood, and includes:

[0008] A guide portion, the guide portion being hinged to the air inlet and having a size smaller than that of the air inlet;

[0009] A smoke collecting portion is arranged close to the cooker, one end of the smoke collecting portion is hinged to the end of the air guide portion away from the air inlet, and a driving portion is provided on both the air guide portion and the smoke collecting portion. When the air inlet is opened, the air guide portion and the smoke collecting portion are moved in a direction away from the air inlet by the driving portion, and the opening angle of the smoke collecting portion is greater than the opening angle of the air guide portion.

[0010] In this solution, the air inlet is blocked and opened by setting a separately movable air guide and smoke collection part, the smoke collection part is close to the stove, and the air guide part is far away from the stove. When the air inlet is opened, the smoke collection part opens at a larger angle, so that when the stove produces less oil smoke, the smoke collection part opens at a larger angle, and the air guide part can open at a smaller angle accordingly, so that a smoke collection area with a larger opening angle than the air guide part is formed through the smoke collection part, thereby preventing oil smoke from escaping. That is, the smoke collection part always maintains a larger opening angle when the air inlet is opened, thereby improving the smoke collection effect.

[0011] Preferably, the dimensions of the air guide portion and the smoke collecting portion along the length direction of the air inlet are larger than the length dimension of the air inlet, and along the width direction of the air inlet, the dimensions of the air guide portion and the smoke collecting portion are smaller than the width dimension of the air inlet. When the air inlet is closed, the air guide portion and the smoke collecting portion are moved by the driving portion and covered on the air inlet.

[0012] In this solution, the above arrangement is used to achieve the effect that the air guide portion and the smoke collection portion cooperate with each other to close or open the air inlet.

[0013] Preferably, a connecting piece is provided at a hinged joint between the flow guide portion and the smoke collecting portion, and the connecting piece is used to seal the hinged joint between the flow guide portion and the smoke collecting portion.

[0014] In this solution, the above arrangement is used to effectively seal the hinge between the air guide portion and the smoke collection portion to prevent oil smoke from escaping therefrom.

[0015] Preferably, the connecting member is a silicone membrane.

[0016] In this solution, through the above arrangement, the flexible silicone membrane is used to effectively seal the hinge between the air guide portion and the smoke collection portion, and the membrane can be reused multiple times to ensure the service life of the connector.

[0017] Preferably, the driving part includes a telescopic mechanism and a fixed seat, a receiving hole is opened on one side edge of the air inlet, one end of the telescopic mechanism is placed in the receiving hole, the other end of the telescopic mechanism is hinged to the fixed seat, and the end of the fixed seat away from the telescopic mechanism is fixedly connected to the guide part or the smoke collection part.

[0018] In this solution, the above arrangement is used to drive the air guide and smoke collection unit to move. In addition, a receiving hole is provided to accommodate the telescopic mechanism when the air inlet is closed, thereby preventing the air guide and smoke collection unit from protruding from the edge of the air inlet when the air guide and smoke collection unit are covered on the air inlet, that is, preventing the telescopic mechanism from interfering with the air guide and smoke collection unit and preventing the air inlet from being closed.

[0019] Preferably, the telescopic mechanism includes an electric push rod and a control panel electrically connected to the electric push rod.

[0020] In this solution, the above-mentioned arrangement is used to drive the flow guide portion and the smoke collection portion to move without manual operation, thereby achieving a higher degree of automation.

[0021] Preferably, the fixing seat is provided on edges of the air guide portion and the smoke collecting portion along the width direction.

[0022] In this solution, the above-mentioned setting is more labor-saving when driving compared to setting a fixed seat along the edge of the guide part and the smoke collection part in the length direction and will not occupy the space for the flow of oil smoke at the air inlet, thereby avoiding affecting the effect of adsorbing oil smoke.

[0023] Preferably, the driving portion connected to the air guide portion and the driving portion connected to the smoke collecting portion are staggered along the width direction of the air inlet.

[0024] In this solution, the above-mentioned setting can avoid interference of the telescopic mechanism compared to being located on the same side in the width direction. At the same time, the staggered setting makes the gravity on both sides of the air inlet more balanced, preventing the situation where the gravity concentration causes the range hood to tilt toward one side when it is set on the same side.

[0025] Preferably, the smoke barrier assembly further includes a smoke barrier strip, which is provided at a hinged joint between the air guide portion and the air inlet and is used to seal the hinged joint between the air guide portion and the air inlet.

[0026] In this solution, the above arrangement is used to effectively seal the hinge between the air guide portion and the air inlet, thereby preventing oil smoke from escaping therefrom.

[0027] A range hood comprises the smoke shielding assembly described above.

[0028] In this solution, the range hood includes the above-mentioned smoke shielding assembly to independently drive the movement of the air guide part and the smoke collection part, and enable the air guide part and the smoke collection part to cooperate to open or close the air inlet. The angle of the smoke collection part when it is opened is greater than the angle when the air guide part is opened, so as to form a larger smoke collection area, which can effectively collect the smoke and prevent the smoke from escaping easily due to the small oil smoke flow and the small opening angle of a single smoke shield.

[0029] The positive progressive effect of the present invention is that by arranging independently movable air guide parts and smoke collection parts to block and open the air inlet, the smoke collection part is close to the stove, while the air guide part is far away from the stove. When the air inlet is opened, the smoke collection part opens at a larger angle, so that when the stove generates less oil smoke, the smoke collection part opens at a larger angle, and the air guide part can open at a smaller angle accordingly, so that a smoke collection area with a larger opening angle than the air guide part is formed through the smoke collection part, thereby preventing oil smoke from escaping. That is, the smoke collection part always maintains a larger opening angle when the air inlet is opened, thereby improving the smoke collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a three-dimensional diagram of a range hood according to a preferred embodiment of the present invention.

[0031] Figure 2 This is a diagram showing the positional relationship between the smoke barrier assembly and the air inlet of a preferred embodiment of the present invention.

[0032] Figure 3 This is a diagram showing the positional relationship between the fixing base and the telescopic mechanism of a preferred embodiment of the present invention.

[0033] Figure 4 This is a diagram showing the positional relationship between the smoke collecting portion and the air guide portion when the air inlet is opened in a preferred embodiment of the present invention.

[0034] Description of reference numerals:

[0035] Smoke barrier assembly 10

[0036] Diversion part 1

[0037] Smoke Collection Department 2

[0038] Drive unit 3

[0039] Telescopic mechanism 31

[0040] Electric linear actuator 311

[0041] Fixed seat 32

[0042] Connector 4

[0043] Smoke Bar 5

[0044] Air inlet 20

[0045] Accommodation hole 21

[0046] Range hood 100 DETAILED DESCRIPTION

[0047] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0048] This embodiment provides a smoke barrier assembly 10, the specific structure of which is as follows Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the smoke shield assembly 10 is hinged to the air inlet 20 of the range hood 100, and the smoke shield assembly 10 includes:

[0049] The air guide part 1 is hinged to the air inlet 20, and the size of the air guide part 1 is smaller than that of the air inlet 20;

[0050] The smoke collecting portion 2 is arranged near the stove (not shown in the figure), and one end of the smoke collecting portion 2 is hinged to the end of the guide portion 1 away from the air inlet 20. The guide portion 1 and the smoke collecting portion 2 are both provided with a driving portion 3. When the air inlet 20 is opened, the guide portion 1 and the smoke collecting portion 2 are both moved in the direction away from the air inlet 20 by the driving portion 3, and the opening angle of the smoke collecting portion 2 is greater than the opening angle of the guide portion 1.

[0051] Specifically, the air inlet 20 of the range hood 100 is a rectangular hole, which is arranged on the side of the range hood 100 along the height direction of the range hood 100, the air guide 1 is arranged away from the stove, and one end of the air guide 1 is hinged to the edge of the air inlet 20 by a hinge structure in the prior art, and the other end of the air guide 1 is hinged to the smoke collection part 2 by a hinge structure in the prior art, so that the air guide 1 and the smoke collection part 2 together constitute a smoke shield structure covering the air inlet 20. It can be understood that the sizes of the air guide 1 and the smoke collection part 2 are smaller than the size of the air inlet 20, and the air guide 1 and the smoke collection part 2 are respectively provided with a driving part 3, that is, the number of the driving parts 3 is two. It can be understood that compared with a single flat plate as a smoke shield, the smoke shield structure composed of the air guide 1 and the smoke collection part 2 can move independently under the drive of each driving part 3, that is, the air guide The smoke collecting portion 2 can increase or decrease its opening angle according to the amount of oil smoke generated by the stove, and when the smoke collecting portion 2 is moved by the driving portion 3 and the air inlet 20 is opened, its opening angle is always greater than the opening angle of the guide portion 1. This makes it possible to form a smoke baffle structure composed of the guide portion 1 and the smoke collecting portion 2 at a hinge point when viewed from the cross section, and the smoke collecting portion 2 has a larger opening angle, so that it forms a wider smoke collecting area. When the amount of oil smoke generated by the stove is small, compared with a single flat plate as a smoke baffle with a small opening angle and cannot effectively collect smoke, the smoke collecting portion 2 has a larger opening angle, and the guide portion 1 can correspondingly open at a smaller angle, so as to form a smoke collecting area with a larger opening angle than the guide portion 1 through the smoke collecting portion 2, thereby preventing oil smoke from escaping, that is, the smoke collecting portion 2 always maintains a larger opening angle when the air inlet 20 is opened, thereby improving the smoke collecting effect.

[0052] In this embodiment, when the amount of oil smoke generated by the stove is small, the opening angle of the air guide part 1 is small, and the opening angle of the smoke collecting part 2 is greater than the opening angle of the air guide part 1, so as to increase the smoke collecting area and achieve effective smoke collection. This is the opening condition of the smoke shielding assembly 10 in the first state; and when the amount of oil smoke generated by the stove is large, the opening angle of the air guide part 1 is increased accordingly, so that a larger flow of oil smoke can enter the air inlet 20 quickly and smoothly, avoiding increasing the resistance to oil smoke adsorption. At this time, the opening angle of the smoke collecting part 2 is still greater than the opening angle of the air guide part 1. This is the opening condition of the smoke shielding assembly 10 in the second state, so as to effectively adsorb the amount of oil smoke under different working conditions of the range hood 100 while ensuring a sufficient smoke collecting range to prevent the oil smoke from escaping due to the small opening angle of the smoke collecting plate of the single-plate structure.

[0053] In this embodiment, the dimensions of the air guide portion 1 and the smoke collecting portion 2 along the length direction of the air inlet 20 are larger than the length dimension of the air inlet 20, and along the width direction of the air inlet 20, the dimensions of the air guide portion 1 and the smoke collecting portion 2 are smaller than the width dimension of the air inlet 20. When the air inlet 20 is closed, the air guide portion 1 and the smoke collecting portion 2 are moved by the driving portion 3 and covered on the air inlet 20.

[0054] Specifically, the air guide part 1 and the smoke collecting part 2 are both rectangular plates. Along the length direction of the air inlet 20, the dimensions of the air guide part 1 and the smoke collecting part 2 are larger than the length dimension of the air inlet 20, so that when the air inlet 20 is closed, the air inlet 20 can be effectively sealed along the length direction by the air guide part 1 and the smoke collecting part 2. Along the width direction of the air inlet 20, the dimensions of the air guide part 1 and the smoke collecting part 2 are smaller than the width dimension of the air inlet 20, so as to avoid the air guide part 1 or the smoke collecting part 2 from closing the air inlet 20 alone, and then in the case of a smoke baffle structure composed of the air guide part 1 and the smoke collecting part 2, they can cooperate with each other and close the air inlet 20 to achieve the closure of the air inlet 20.

[0055] It is understandable that the driving portion 3 drives the air guide portion 1 and the smoke collecting portion 2 to move, so that the air guide portion 1 and the smoke collecting portion 2 cooperate with each other to open the air inlet 20.

[0056] In this embodiment, a connector 4 is provided at the hinge of the air guide portion 1 and the smoke collecting portion 2 , and the connector 4 is used to seal the hinge of the air guide portion 1 and the smoke collecting portion 2 .

[0057] Specifically, one end of the connector 4 is connected to the end of the air guide 1 away from the air inlet 20, and the other end of the connector 4 is connected to the end of the smoke collecting portion 2 closer to the air guide 1. The connection can be achieved by gluing, or by using a clamping structure, bolt assembly, etc. in the prior art. This is a prior art and will not be described in detail here. The purpose is to effectively seal the hinged joint between the air guide 1 and the smoke collecting portion 2 to prevent oil smoke from escaping therefrom.

[0058] Furthermore, in this embodiment, the connecting member 4 is a silicone membrane.

[0059] Specifically, the silicone membrane is a flexible material in the prior art, and a flexible structure is set at the hinge of the guide part 1 and the smoke collecting part 2. Compared with the hard structure, the silicone membrane with a flexible structure can be bent repeatedly to ensure the service life of the connecting part 4 while ensuring the sealing of the part.

[0060] In this embodiment, the driving part 3 includes a telescopic mechanism 31 and a fixed seat 32. A receiving hole 21 is opened on one side edge of the air inlet 20. One end of the telescopic mechanism 31 is placed in the receiving hole 21. The other end of the telescopic mechanism 31 is hinged to the fixed seat 32. The end of the fixed seat 32 away from the telescopic mechanism 31 is fixedly connected to the guide part 1 or the smoke collection part 2.

[0061] Specifically, the fixing seat 32 is connected to the air guide portion 1 or the smoke collection portion 2 by a bolt assembly. The fixing seat 32 is provided with an ear plate along the width direction of the air inlet 20. A through hole is provided on the ear plate. One end of the telescopic mechanism 31 is rotatably connected to the ear plate by a bolt assembly. The other end of the telescopic mechanism 31 is placed in the accommodating hole 21. When the air inlet 20 is opened, the telescopic mechanism 31 extends in a direction away from the air inlet 20 to push the fixing seat 32 and thereby drive the air guide portion 1 or the smoke collection portion 2 to move. When the air inlet 20 is closed, the telescopic mechanism 31 is extended. It retracts toward the air inlet 20, and at the same time drives the air guide part 1 or the smoke collection part 2 to move. When the air guide part 1 or the smoke collection part 2 is covered at the air inlet 20, the telescopic mechanism 31 retracts into the accommodating hole 21 accordingly. Seen from the side of the range hood 100, the air guide part 1 or the smoke collection part 2 is flush with the surface of the range hood 100, preventing the air guide part 1 and the smoke collection part 2 from protruding from the edge of the air inlet 20 when they are covered at the air inlet 20, that is, preventing the telescopic mechanism 31 from interfering with the air guide part 1 and the smoke collection part 2 and failing to close the air inlet 20.

[0062] In this embodiment, the telescopic mechanism 31 includes a push rod 311 and a control panel (not shown) electrically connected to the push rod 311. The control panel connects the push rod 311, causing it to extend and retract, thereby moving the mounting base 32, thereby driving the air guide 1 and smoke collection unit 2 to move. This eliminates the need for manual operation and provides a higher level of automation. It is understood that the operating principles of the control panel and push rod 311 are based on existing technology and are not improved upon in this embodiment, so they will not be elaborated upon here.

[0063] In other embodiments, the telescopic mechanism 31 may also be a hydraulic cylinder or a pneumatic cylinder in the prior art, which can also achieve the purpose of driving the air guide portion 1 and the smoke collection portion 2 to move, and will not be elaborated herein.

[0064] In this embodiment, the fixing seat 32 is provided at the edges of the air guide portion 1 and the smoke collecting portion 2 along the width direction.

[0065] Specifically, the fixing seat 32 is arranged on the edges of the air guide part 1 and the smoke collection part 2 in the width direction, and is located in the middle area of the edges of the air guide part 1 and the smoke collection part 2 in the width direction. Compared with setting the fixing seat 32 along the edges of the air guide part 1 and the smoke collection part 2 in the length direction, it is more labor-saving when driving and will not occupy the space for the flow of oil smoke at the air inlet 20, thereby avoiding affecting the effect of adsorbing oil smoke.

[0066] In this embodiment, the driving portion 3 connected to the air guide portion 1 and the driving portion 3 connected to the smoke collecting portion 2 are staggered along the width direction of the air inlet 20 .

[0067] Specifically, along the width direction of the air inlet 20, the driving part 3 connected to the air guide part 1 is located at a first height, and the driving part 3 connected to the smoke collecting part 2 is located at a second height, the first height is higher than the second height, and the driving part 3 connected to the air guide part 1 is located on the first side of the air guide part 1, and the driving part 3 connected to the smoke collecting part 2 is located on the second side of the smoke collecting part 2, and the first side of the air guide part 1 is away from the second side of the smoke collecting part 2, so that the two driving parts 3 connected to the air guide part 1 and the smoke collecting part 2 are staggered in the width direction of the air inlet 20. Compared with setting the driving parts 3 on the same side in the width direction, interference of the telescopic mechanism 31 can be avoided. At the same time, the staggered setting makes the gravity on both sides of the air inlet 20 more balanced, preventing the range hood 100 from tilting toward one side due to gravity concentration when it is set on the same side.

[0068] In this embodiment, the smoke barrier assembly 10 further includes a smoke barrier strip 5 , which is disposed at the hinge between the air guide portion 1 and the air inlet 20 and is used to seal the hinge between the air guide portion 1 and the air inlet 20 .

[0069] Specifically, the smoke barrier strip 5 is arranged at the edge of the air inlet 20 and is located at the hinge between the guide part 1 and the air inlet 20. The smoke barrier strip 5 is made of metal, and the smoke barrier strip 5 is provided with an arc-shaped guide surface on the side facing the guide part 1. When the guide part 1 moves, the guide surface can fit the end of the guide part 1 to achieve sealing the hinge between the guide part 1 and the air inlet 20. By providing the smoke barrier strip 5, the hinge between the guide part 1 and the air inlet 20 can be effectively sealed to prevent oil smoke from escaping therefrom.

[0070] The present embodiment also provides a range hood 100, which includes the above-mentioned smoke shielding assembly 10 to independently drive the movement of the air guide part 1 and the smoke collecting part 2, and enable the air guide part 1 and the smoke collecting part 2 to cooperate with each other to open or close the air inlet 20. When the smoke collecting part 2 is opened, the angle is greater than the angle when the air guide part 1 is opened, so as to form a larger smoke collecting area, which can effectively collect the smoke and prevent the smoke from escaping easily due to the small oil smoke flow and the small opening angle of a single smoke shield.

[0071] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A smoke shield assembly, hinged to the air inlet of a range hood, characterized in that: The smoke barrier assembly includes: A guide portion, the guide portion being hinged to the air inlet and having a size smaller than that of the air inlet; A smoke collecting portion is arranged close to the cooker, one end of the smoke collecting portion is hinged to the end of the air guide portion away from the air inlet, and a driving portion is provided on both the air guide portion and the smoke collecting portion. When the air inlet is opened, the air guide portion and the smoke collecting portion are moved in a direction away from the air inlet by the driving portion, and the opening angle of the smoke collecting portion is greater than the opening angle of the air guide portion.

2. The smoke barrier assembly according to claim 1, wherein: The dimensions of the air guide portion and the smoke collecting portion along the length direction of the air inlet are larger than the length dimension of the air inlet, and along the width direction of the air inlet, the dimensions of the air guide portion and the smoke collecting portion are smaller than the width dimension of the air inlet. When the air inlet is closed, the air guide portion and the smoke collecting portion are moved by the driving portion and covered on the air inlet.

3. The smoke barrier assembly according to claim 1, wherein: A connecting piece is provided at the hinge of the flow guide portion and the smoke collecting portion, and the connecting piece is used to seal the hinge of the flow guide portion and the smoke collecting portion.

4. The smoke barrier assembly according to claim 3, wherein: The connecting piece is a silicone membrane.

5. The smoke barrier assembly according to claim 1, wherein: The driving part includes a telescopic mechanism and a fixed seat. A receiving hole is opened on one side edge of the air inlet. One end of the telescopic mechanism is placed in the receiving hole. The other end of the telescopic mechanism is hinged to the fixed seat. The end of the fixed seat away from the telescopic mechanism is fixedly connected to the guide part or the smoke collection part.

6. The smoke barrier assembly according to claim 5, wherein: The telescopic mechanism includes an electric push rod and a control panel electrically connected to the electric push rod.

7. The smoke barrier assembly according to claim 5, wherein: The fixing seat is arranged on edges of the air guide portion and the smoke collecting portion along the width direction.

8. The smoke barrier assembly according to claim 7, wherein: The driving portion connected to the air guide portion and the driving portion connected to the smoke collecting portion are staggered along the width direction of the air inlet.

9. The smoke barrier assembly according to claim 1, wherein: The smoke barrier assembly further includes a smoke barrier strip, which is arranged at the hinge between the guide portion and the air inlet and is used to seal the hinge between the guide portion and the air inlet.

10. A range hood, characterized in that: The range hood comprises a smoke shield assembly according to any one of claims 1 to 9.

Images