Range hood

Abstract

The utility model relates to a range hood. The range hood comprises an exhaust fume collecting hood, an exhaust fume gathering plate, a driving mechanism and an oil guide bracket, when the smoke gathering plate is in an open state, the bottom of the oil guide support is fixed to the edge of the movable hole in an abutting mode, and compared with the scheme that the oil guide support is located in the middle of the movable hole and connected with the back plate of the smoke collecting hood in the prior art, the movable hole adopted by the scheme of our company is smaller, so that the oil smoke separation effect can be improved; the appearance is more attractive; in addition, the oil guide support abuts against the edge of the movable hole, in this way, the oil guide support can be independently disassembled and cleaned, compared with the mode that an oil guide assembly is slidably connected with the back plate through a sliding rail in the related technology, disassembly and cleaning operation is more convenient, and blockage and jamming faults or abnormal sound can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a range hood. Background Art

[0002] A range hood, also known as a smoke extractor, is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly extract the waste from the stove and the fumes that are harmful to the human body generated during cooking and discharge them outdoors.

[0003] The range hood in the related art includes a smoke collecting hood, a smoke collecting plate rotatably arranged on the upper part of the smoke collecting hood, and a driving assembly for opening or closing the smoke collecting plate. The driving assembly is provided with a push arm connected to the smoke collecting plate, and the upper part of the smoke collecting hood is formed with a plurality of inhalation holes and a movable hole corresponding to the push arm. When the smoke collecting plate is in a closed state, the smoke collecting plate blocks the inhalation holes; when the smoke collecting plate is in an open state, the push arm is pushed out together with the smoke collecting plate, and the oil smoke outside the range hood can enter the inside of the smoke collecting hood through the inhalation holes.

[0004] However, after the range hood has been used for a period of time, the oil on the push arm is likely to fall down from the lowest point of the bottom onto the cooktop, causing contamination defects. Therefore, the push arm needs to be cleaned frequently, which is a cumbersome operation; or an oil guide assembly is provided between the push arm and the back plate, through which the oil on the push arm is guided to the inside of the smoke hood and discharged. However, the structure of the oil guide assembly is complex, and it is not easy to disassemble and clean, which makes it easy to cause blockage or abnormal noise during use after a period of use. Summary of the invention

[0005] The technical problem solved by the present application is to provide a range hood which can effectively prevent oil stains from falling onto a stove surface and contaminating the stove surface, while the oil guide bracket can be easily disassembled and cleaned, and can avoid blockage or abnormal noise.

[0006] The above technical problems are solved by the following technical solutions:

[0007] A range hood, comprising:

[0008] A smoke collecting hood, wherein the upper portion of the smoke collecting hood is provided with a smoke collecting portion and a movable hole;

[0009] A smoke collecting plate, which is openably and closably arranged at the smoking section;

[0010] A driving mechanism, the driving mechanism is installed inside the smoke collecting hood, the driving mechanism is provided with a push arm movably inserted into the movable hole and connected to the smoke collecting plate, and the driving mechanism is used to drive the smoke collecting plate to open or close; and

[0011] An oil guide bracket, wherein a first end of the oil guide bracket is rotatably connected to the push arm and is located below the push arm, and can extend out of the smoke hood or enter into the smoke hood through the movable hole under the drive of the push arm;

[0012] Wherein, when the smoke collecting plate is in an open state, the bottom of the oil guide bracket abuts against the edge of the movable hole and can receive the oil stains at the lowest position of the push arm and guide the oil stains into the interior of the smoke collecting hood.

[0013] The range hood described in this application has the following beneficial effects compared with the background technology:

[0014] In the above-mentioned range hood, when the smoke collecting plate is in the open state, the oil guide bracket located below the push arm can receive the oil and water vapor at the lowest position of the push arm, and guide the oil and water vapor into the interior of the smoke collecting hood, thereby preventing the oil on the push arm from leaking and dripping; wherein, when the smoke collecting plate is in the open state, the bottom of the oil guide bracket is abutted and fixed with the edge of the movable hole. Compared with the solution in the prior art that the oil guide bracket is located in the middle of the movable hole and connected to the back plate of the smoke collecting hood, the movable hole adopted in our solution is smaller, which can increase the oil fume separation effect and looks more beautiful in appearance; in addition, the oil guide bracket abuts against the edge of the movable hole, so that the oil guide bracket can be disassembled and cleaned separately. Compared with the method in the related art that the oil guide assembly is slidably connected to the back plate through a slide rail, it not only makes it easier to disassemble and clean, but also avoids blockage or abnormal noise.

[0015] In one of the embodiments, the oil guide bracket is detachably connected to the push arm; and / or, the oil guide bracket is configured as a non-metal bracket or a metal bracket.

[0016] In one of the embodiments, the oil guide bracket includes an oil guide bottom plate and two oil guide side plates connected to opposite sides of the oil guide bottom plate; the two oil guide side plates cooperate with the oil guide bottom plate to form a groove; the push arm extends into the groove and is rotatably connected to the front ends of the two oil guide side plates.

[0017] In one of the embodiments, the distance S between the front ends of the two oil guide side plates tends to decrease in a direction approaching the oil guide bottom plate.

[0018] In one of the embodiments, the oil guide bracket further includes one or more reinforcing ribs connected between the oil guide bottom plate and the oil guide side plate.

[0019] In one of the embodiments, the range hood further includes: a limit bracket, which is arranged inside the smoke hood and connected to the back plate of the smoke hood; the limit bracket is provided with a clamping portion protruding toward the oil guide bracket, and the clamping portion is used to clamp the oil guide bracket when the smoke collecting plate is in a closed state.

[0020] In one of the embodiments, the limiting bracket includes a first guide plate arranged at an angle to the back plate, and the distance d1 between the first guide plate and the back plate tends to decrease from top to bottom; the first guide plate is used to support the second end of the oil guide bracket to guide the oil guide bracket to be accommodated inside the smoke collecting hood during the process of the smoke collecting plate turning from an open state to a closed state; the clamping portion is connected to the upper part of the first guide plate.

[0021] In one embodiment, the limiting bracket also includes a second guide plate arranged at an angle to the back plate, and the distance d2 between the second guide plate and the back plate tends to increase from top to bottom; the second guide plate is located below the push arm and above the clamping portion, and the second guide plate can guide the push arm that will be in contact with it during the assembly process so that the push arm extends outward from the inside of the smoke hood.

[0022] In one of the embodiments, the limiting bracket further includes a third guide plate connected to the upper end of the second guide plate, and the third guide plate is inclined and extends downward toward a direction close to the back plate.

[0023] In one of the embodiments, the range hood further includes an oil guide trough body arranged inside the smoke hood and located below the oil guide bracket and the limit bracket, the oil guide trough body is inclined downward from front to rear, and the front and rear ends thereof are respectively connected to the front plate and the back plate of the smoke hood; and / or, a guide member for supporting and guiding the oil guide bracket is provided on the hole wall of the movable hole, and the guide member is inclined downward from front to rear and extends into the interior of the smoke hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a structural diagram of a range hood according to an embodiment of the present application.

[0027] Figure 2 for Figure 1 A cross-sectional structural diagram of the structure shown.

[0028] Figure 3 for Figure 2 Enlarged structural diagram at A.

[0029] Figure 4 This is a cross-sectional structural diagram of a range hood in an embodiment of the present application, with the smoke collecting plate of the range hood in a closed state.

[0030] Figure 5 This is a structural diagram of a range hood in a lying position during the assembly process according to an embodiment of the present application.

[0031] Figure 6 This is a structural diagram of a limit bracket and an oil guide groove body according to an embodiment of the present application.

[0032] Figure 7 for Figure 6 Another perspective structural diagram of the structure shown.

[0033] Figure 8 for Figure 6 A breakdown structure diagram of the structure shown.

[0034] Fig. 9 This is a structural diagram of an oil guide bracket according to an embodiment of the present application.

[0035] Reference numerals:

[0036] 10. Smoke hood; 11. Smoking section; 12. Movable hole; 13. Back plate; 14. Lower air inlet; 15. Guide piece; 16. Front plate; 20. Smoke collecting plate; 21. Rotating arm; 30. Driving mechanism; 31. Push arm; 40. Oil guide bracket; 41. Oil guide bottom plate; 42. Oil guide side plate; 421. Guide part; 422. Axis hole; 43. Groove; 44. Reinforcement rib; 45. Abutment part; 46. Limiting plate; 50. Limiting bracket; 51. First guide plate; 511. Pressing part; 52. Second guide plate; 53. Third guide plate; 54. Mounting plate; 60. Oil guide groove; 61. Oil leakage port; 62. First flange; 63. Second flange; 64. Hollow opening; 70. Oil cup. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] See also Figure 1 , Figure 2 , Figure 4 and Fig. 9 , Figure 1 A structural diagram of a range hood according to an embodiment of the present application is shown. Figure 2 Shows Figure 1 A cross-sectional structural diagram of the structure shown. Figure 4 A cross-sectional structural diagram showing a smoke collecting plate 20 of a range hood in a closed state according to an embodiment of the present application is shown. Fig. 9 The structural diagram of the oil guide bracket 40 of one embodiment of the present application is shown. An embodiment of the present application provides a range hood, the range hood comprising: a smoke collecting hood 10, a smoke collecting plate 20, a driving mechanism 30, an oil guide bracket 40 and a limiting bracket 50. The upper part of the smoke collecting hood 10 is provided with a smoking section 11 and a movable hole 12. Specifically, the smoking section 11 includes but is not limited to one or more smoking holes, smoking windows, etc., as long as it can satisfy the oil smoke outside the smoke collecting hood 10. The specific shapes of the smoking holes and smoking windows are flexibly adjusted and set according to actual needs, and are not limited here. In addition, the smoke collecting plate 20 can be opened and closed at the smoking section 11. Optionally, the smoke collecting plate 20 is rotatably connected to the smoke collecting hood 10, for example, through one or more rotating arms 21, so that under the drive of the driving mechanism 30, the smoking section 11 can be stably rotated to open or close.

[0039] In addition, the driving mechanism 30 is installed inside the smoke collecting hood 10, and the driving mechanism 30 is provided with a push arm 31 that is movably inserted into the movable hole 12 and connected to the smoke collecting plate 20, and the driving mechanism 30 is used to drive the smoke collecting plate 20 to open or close. Optionally, the driving mechanism 30 includes but is not limited to various forms of power mechanisms such as a screw motor, a cylinder, and a motor cam, as long as it can realize the driving arm 31 to move up and down.

[0040] In addition, the first end of the oil guide bracket 40 is rotatably connected to the push arm 31 and is located below the push arm 31 , and can extend to the outside of the smoke hood 10 or enter into the smoke hood 10 through the movable hole 12 driven by the push arm 31 .

[0041] When the smoke collecting plate 20 is in the open state, the bottom of the oil guide bracket 40 abuts against the edge of the movable hole 12 and can receive the oil at the lowest position of the push arm 31 and guide the oil into the interior of the smoke collecting hood 10 .

[0042] In the above-mentioned range hood, when the smoke collecting plate 20 is in the open state, the oil guide bracket 40 located below the push arm 31 can receive the oil and water vapor at the lowest position of the push arm 31, and introduce the oil and water vapor into the interior of the smoke collecting hood 10, thereby preventing the oil on the push arm 31 from leaking and dripping; wherein, when the smoke collecting plate 20 is in the open state, the bottom of the oil guide bracket 40 is abutted and fixed with the edge of the movable hole 12. Compared with the solution in the prior art that the oil guide bracket 40 is located in the middle of the movable hole and is connected to the back plate 13 of the smoke collecting hood 10, the movable hole adopted in our solution is smaller, which can increase the oil fume separation effect and looks more beautiful in appearance; in addition, the oil guide bracket 40 abuts against the edge of the movable hole, so that the oil guide bracket 40 can be disassembled and cleaned separately, compared with the method in the related art that the oil guide assembly is slidably connected to the back plate 13 through a slide rail, it not only makes it easier to disassemble and clean, but also avoids blockage or abnormal noise.

[0043] In some embodiments, the oil guide bracket 40 is specifically connected to the lowest position of the push arm 31 in the open state, and of course it can also be connected to other positions of the push arm 31, as long as the oil at the lowest position of the push arm 31 can be drained and guided. When the oil guide bracket 40 is connected to the lowest position of the push arm 31, the drainage effect of the oil is better than that of connecting to other positions, and the volume size of the oil guide bracket 40 is not too large to increase the cost and affect the product appearance. In addition, the oil guide bracket 40 is arranged in the movable hole 12 and extends downward to the inside of the smoke hood 10 at an angle relative to the horizontal plane, and is, for example, set on the hole wall of the movable hole 12, so that the oil can flow along the oil guide bracket 40 to the inside of the smoke hood 10 under the action of gravity. Specifically, the bottom wall of the oil guide bracket 40 is used to carry and guide the oil, and is set at an angle relative to the horizontal plane. The angle includes but is not limited to 5°, 15°, 30°, 45°, 60°, 75°, etc.

[0044] See also Figure 2 , Figure 4 and Fig. 9In some embodiments, the oil guide bracket 40 is detachably connected to the push arm 31. In this way, the oil guide bracket 40 can be easily disassembled, cleaned, maintained and replaced. In addition, when the oil guide bracket 40 is set as a non-metallic bracket, the elasticity of the non-metallic bracket is better than that of the metal bracket, so that the disassembly and assembly operation on the push arm 31 is more convenient and reliable than that of the metal bracket. At the same time, it can be easily snap-fitted and installed on the push arm 31, and the noise during the disassembly and assembly process is smaller and the cost is lower. Among them, the non-metallic bracket is, for example, a non-metallic elastic bracket, specifically including but not limited to a plastic bracket, a resin bracket, a rubber bracket, etc., which can be flexibly adjusted and set according to actual needs. Of course, in some optional schemes, the oil guide bracket 40 can also be, for example, set as a metal bracket, specifically, for example, an elastic metal bracket.

[0045] See also Figure 2 , Figure 4 and Fig. 9 In one embodiment, the oil guide bracket 40 includes an oil guide bottom plate 41 and two oil guide side plates 42 connected to opposite sides of the oil guide bottom plate 41. The two oil guide side plates 42 cooperate with the oil guide bottom plate 41 to form a groove 43. The push arm 31 extends into the groove 43 and is rotatably connected to the front ends of the two oil guide side plates 42. In this way, on the one hand, the groove 43 located below the push arm 31 can better achieve the complete introduction of oil and water vapor into the interior of the smoke hood 10; on the other hand, the oil guide bracket 40 can freely swing and adjust the angle relative to the push arm 31, so that the opening and closing operation of the smoke collecting plate 20 will not cause interference. In addition, specifically, the rear ends of the two oil guide side plates 42 and the oil guide bottom plate 41 extend into the interior of the smoke hood 10, and the oil and water vapor enter the interior of the smoke hood 10 from the rear ends of the oil guide side plates 42 and the oil guide bottom plate 41 through the guidance of the oil guide bracket 40.

[0046] In some embodiments, a connecting piece is provided on the push arm 31, and a shaft hole 422 corresponding to the position of the connecting piece is provided at the front end of each oil guide side plate 42, and the connecting piece is respectively inserted into the two shaft holes 422 to realize the rotational connection between the push arm 31 and each oil guide side plate 42. The connecting piece includes but is not limited to a pin, a rivet, a rotating shaft, a connecting rod, etc. Optionally, the connecting piece is specifically, for example, fixedly connected to the push arm 31. In addition, the push arm 31 is detachably buckled in the shaft hole 422 through the connecting piece, so that the push arm 31 and the oil guide bracket 40 can be quickly disassembled and assembled.

[0047] See also Figure 2 , Figure 4 and Fig. 9 In one embodiment, the distance S between the front ends of the two oil guide side plates 42 decreases in the direction close to the oil guide bottom plate 41. In this way, during the process of assembling the two oil guide side plates 42 onto the push arm 31, the front ends of the two oil guide side plates 42 play a guiding role, making it easy to fit onto the push arm 31.

[0048] Specifically, the front end of each oil guide side plate 42 is provided with a guide portion 421 bent in a direction away from each other. The spacing between the two guide portions 421 tends to decrease in the direction close to the oil guide bottom plate 41. In this way, during the process of assembling the oil guide bracket 40 to the push arm 31, the two guide portions 421 can play a guiding role, so that it can be easily sleeved on the push arm 31, and the assembly efficiency is high.

[0049] In one embodiment, the oil guide bracket 40 further includes one or more reinforcing ribs 44 connected between the oil guide bottom plate 41 and the oil guide side plate 42. In this way, the reinforcing ribs 44 can improve the structural strength between the oil guide bottom plate 41 and the oil guide side plate 42, and can prevent the oil guide bracket 40 from being deformed by force.

[0050] Specifically, the number of reinforcing ribs 44 is not limited to one, but multiple and respectively located at the sides of the groove 43 , and each oil guide side plate 42 is connected and fixed to the oil guide bottom plate 41 via at least one reinforcing rib 44 .

[0051] See also Figures 4 to 6 , Figure 8 In one embodiment, the range hood further comprises: a limit bracket 50, which is arranged inside the smoke collecting hood 10 and connected to the back plate 13 of the smoke collecting hood 10; the limit bracket 50 is provided with a pressing portion 511 protruding toward the oil guide bracket 40, and the pressing portion 511 is used to press the oil guide bracket 40 when the smoke collecting plate 20 is in the closed state. In this way, after the smoke collecting plate 20 and the push arm 31 are assembled and connected, the range hood is in a state as follows: Figure 5 In the lying posture shown, since the limiting bracket 50 is provided with a clamping portion 511 protruding toward the oil guide bracket 40, when the smoke collecting plate 20 is in a closed state, the clamping portion 511 and the oil guide bracket 40 are squeezed, so that the oil guide bracket 40 is stably installed inside the smoke collecting hood 10 and is not prone to shaking during transportation.

[0052] See also Figure 2 , Figures 4 to 8In one embodiment, the limiting bracket 50 also includes a first guide plate 51 arranged at an angle to the back plate 13, and the distance d1 between the first guide plate 51 and the back plate 13 tends to decrease from top to bottom; the first guide plate 51 is used to support the second end of the oil guide bracket 40 to guide the oil guide bracket 40 to be accommodated in the interior of the smoke collecting hood 10 during the process of the smoke collecting plate 20 turning from an open state to a closed state; the clamping portion 511 is connected to the upper part of the first guide plate 51. In this way, the smoke collecting plate 20 simultaneously drives the oil guide bracket 40 to enter the smoke collecting hood 10 during the process of moving from opening to closing. The oil guide bracket 40 is specifically abutted against the first guide plate 51, and can rotate relative to the push arm 31 under the guidance of the first guide plate 51, and slide downward along the first guide plate 51, so that it can be accommodated in the smoke collecting hood 10, preventing the oil guide bracket 40 from being unable to fully extend into the smoke collecting hood 10 when the internal space of the smoke collecting hood 10 is small, thereby interfering with the smoke collecting hood 10, and ultimately causing the smoke collecting plate 20 to fail to close normally.

[0053] See also Figure 3 In some embodiments, the rear end of the oil guide bracket 40 is provided with an abutting portion 45 that can abut against the first guide plate 51. The abutting portion 45 is specifically provided with an arc-shaped surface for abutting against the first guide plate 51. The arc-shaped surface is specifically arranged on the side of the rear ends of the two oil guide side plates 42 away from the oil guide bottom plate 41. When the smoke collecting plate 20 is closed, the oil guide bracket 40 is synchronously driven to enter the smoke collecting hood 10. The abutting portion 45 abuts against the limiting bracket 50 through the arc-shaped surface, and can rotate relative to the push arm 31 under the guidance of the first guide plate 51, so that it can be accommodated in the smoke collecting hood 10, preventing the smoke collecting plate 20 from interfering with the smoke collecting hood 10 and causing the defect that the smoke collecting plate 20 cannot be closed normally. In the process of the arc-shaped surface abutting against the first guide plate 51 and sliding against each other, the movement is relatively smoother, the noise is relatively small, and there will be no stuck defect.

[0054] See also Figure 2 , Figures 4 to 8In one embodiment, the limiting bracket 50 further includes a second guide plate 52 arranged at an angle with the back plate 13. The distance d2 between the second guide plate 52 and the back plate 13 increases from top to bottom; the second guide plate 52 is located below the push arm 31 and above the pressing portion 511, and the second guide plate 52 can guide the push arm 31 that will abut against it during the assembly process, so that the push arm 31 extends outward from the inside of the smoke hood 10. Specifically, during the assembly process, when the smoke collecting plate 20 is not connected to the push arm 31, the push arm 31 needs to be extended from the inside of the smoke collecting hood 10 to facilitate the connection of the smoke collecting plate 20. In the process of the driving mechanism 30 driving the push arm 31 to move to the open state, since the second guide plate 52 is provided in this embodiment, the second guide plate 52 can abut against the push arm 31 and guide the push arm 31, so that the push arm 31 can be extended outward from the inside of the smoke collecting hood 10, so as to overcome the defect that the push arm moves vertically downward during the assembly process and needs external force to extend outward.

[0055] In one embodiment, the limiting bracket 50 further includes a third guide plate 53 connected to the upper end of the second guide plate 52. The third guide plate 53 is arranged to extend downwardly in an inclined manner toward the direction close to the back plate 13. The third guide plate 53 includes but is not limited to a bent plate integrally connected to the second guide plate 52, which can not only increase the structural strength of the second guide plate 52 and play a role in local reinforcement, but also realize that the upper end of the limiting bracket 50 is far away from the push arm 31, that is, to avoid the burrs at the upper end from causing defects such as scratches on the push arm 31 due to the burrs left by the processing technology. Of course, in some embodiments, the third guide plate 53 can also be omitted, and by lengthening the length of the second guide plate 52, the upper end of the second guide plate 52 is extended upward, for example, so that the upper end of the second guide plate 52 is far away from the push arm 31, to avoid the burrs at the upper end from contacting the push arm 31 and causing defects such as scratches on the push arm 31.

[0056] Specifically, the oil guide bracket 40 is configured as a non-metal bracket. In addition, the limiting bracket 50 further includes a mounting plate 54 connected to the lower end of the first guide plate 51 and arranged at an angle, and the mounting plate 54 is mounted on the back plate 13. The connection between the lower end of the first guide plate 51 and the back plate 13 is elastic, and elastic buffering can occur when the extrusion force is applied, so that when the cigarette collecting plate 20 is in a closed state, the front end of the pressing part 511 is elastically extruded with the oil guide bracket 40, thereby improving stability and greatly reducing collision noise.

[0057] See also Figure 2 and Fig. 9In some embodiments, the oil guide bracket 40 further includes a limit plate 46 connected to the oil guide bottom plate 41 or the oil guide side plate 42. The limit plate 46 can abut against the push arm 31 to limit the position when the push arm 31 moves to the open state, so that a certain angle can be formed between the oil guide bracket 40 and the push arm 31. In particular, when the range hood is in a lying position and the smoke collecting plate 20 and the push arm 31 are in an open state, the limit plate 46 abuts against the push arm 31 to limit the position, so that the lower end of the oil guide bracket 40 falls on the first guide plate 51, and then in the process of closing the smoke collecting plate 20 and the push arm 31, it will move along the first guide plate 51, which can avoid the oil guide bracket 40 and the limit bracket 50 from being stuck.

[0058] In one embodiment, the range hood further includes an oil guide groove 60 disposed inside the fume hood 10 and below the oil guide bracket 40 and the limit bracket 50. The oil guide groove 60 is inclined downward from front to back, and its front and rear ends are respectively connected to the front plate 16 and the back plate 13 of the fume hood 10. In this way, the oil guide groove 60 can receive the oil dirt falling downward from the second end of the oil guide bracket 40, and guide the oil dirt to the back plate 13, and flow along the back plate 13 to the oil cup 70.

[0059] In some embodiments, the oil guide groove 60 is arranged inside the smoke hood 10 and extends downward from front to back at an angle relative to the horizontal plane. The angle formed with the horizontal plane includes but is not limited to 5°, 10°, 15°, 30°, 45°, 60°, etc., so that the oil received by the oil guide groove 60 can flow to the back plate 13 under the action of its own gravity, thereby having a better diversion effect.

[0060] See also Figure 2 , Figures 6 to 8 In some embodiments, two opposite sides of the rear end of the oil guide groove body 60 are respectively provided with oil leakage ports 61, and the oil inside the oil guide groove body 60 flows out to the back plate 13 through the oil leakage ports 61 on the opposite sides of the rear end. Of course, the middle part of the rear end of the oil guide groove body 60 may also be formed with one or more oil leakage holes, and the oil falls downward through the leakage holes into the oil cup 70 below it.

[0061] In some embodiments, the front end of the oil guide groove body 60 is connected and fixed to the front plate 16 of the smoke hood 10, and the rear end of the oil guide groove body 60 is connected and fixed to the back plate 13 of the smoke hood 10, thereby playing a supporting role, increasing the structural strength of the smoke hood 10, and effectively preventing the smoke hood 10 from deforming. Specifically, the opposite ends of the oil guide groove body 60 are respectively connected to the smoke hood 10 by, for example, at least one fastener, and the fastener includes but is not limited to screws, pins, rivets, etc.

[0062] In some embodiments, the rear end of the oil guide groove body 60 is provided with a first flange 62, and the first flange 62 is connected and fixed to the back plate 13, for example. In addition, the first flange 62 is also connected and fixed to the mounting plate 54. Specifically, the oil guide groove body 60 and the limit bracket 50 are connected and fixed to the back plate 13 through fasteners, so that the assembly efficiency is improved. In addition, the front end of the oil guide groove body 60 is provided with a second flange 63, and the second flange 63 is connected and fixed to the front plate 16 of the smoke hood 10, for example.

[0063] In some embodiments, when the range hood is in a lying state, the pressing portion 511 of the limiting bracket 50 is squeezed with the oil guide bracket 40, and the second end of the oil guide bracket abuts against the first flange 62 of the oil guide groove 60. In this way, the two can cooperate with each other to further enhance the stability during transportation.

[0064] In some embodiments, the fume hood 10 is further provided with a lower air inlet 14, and the oil guide groove 60 is located above the lower air inlet 14 and is formed with a hollow hole or a hollow opening 64, so that the oil fume entering the interior of the fume hood 10 from the lower air inlet 14 will not be blocked, so that the oil fume from the lower air inlet 14 can smoothly enter the interior of the fume hood 10. When the air flow cross-sectional area of ​​the hollow hole or the hollow opening 64 is increased, the air flow resistance can be reduced accordingly, thereby reducing noise.

[0065] See also Figure 2 and Figure 3 In some embodiments, a guide member 15 for supporting and guiding the oil guide bracket 40 is provided at the hole wall of the movable hole 12, and the guide member 15 extends downward from the front to the back into the smoke hood 10. Specifically, the guide member 15 includes but is not limited to a curling edge connected to the hole wall of the movable hole 12, and specifically, for example, is obtained by bending the hole wall of the movable hole 12 toward the inside of the smoke hood 10, and the surface after bending is in an arc transition, so as to achieve better guidance of the oil guide bracket 40. In the process of rotating and opening the smoke collecting plate 20, the oil guide bracket 40 relies on its own gravity to rest on the guide member 15, and the guide member 15 supports and guides the oil guide bracket 40, and can assist the oil guide bracket 40 to open synchronously; in addition, since the guide member 15 extends toward the inside of the smoke hood 10, it can prevent oil stains from overflowing, and the oil stains flowing onto its surface will flow into the inside of the smoke hood 10.

[0066] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0067] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0069] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A range hood, characterized in that: The range hood comprises: A smoke collecting hood (10), wherein the upper portion of the smoke collecting hood (10) is provided with a smoke collecting portion (11) and a movable hole (12); a smoke collecting plate (20), the smoke collecting plate (20) being arranged at the smoking section (11) in an openable and closable manner; a driving mechanism (30), the driving mechanism (30) being installed inside the smoke collecting hood (10), the driving mechanism (30) being provided with a push arm (31) movably inserted into the movable hole (12) and connected to the smoke collecting plate (20), the driving mechanism (30) being used for driving the smoke collecting plate (20) to open or close; and an oil guide bracket (40), wherein a first end of the oil guide bracket (40) is rotatably connected to the push arm (31) and is located below the push arm (31), and can extend out of the smoke collecting hood (10) or enter into the smoke collecting hood (10) through the movable hole (12) under the drive of the push arm (31); When the smoke collecting plate (20) is in an open state, the bottom of the oil guide bracket (40) abuts against the edge of the movable hole (12) and can receive the oil stains at the lowest position of the push arm (31), and guide the oil stains into the interior of the smoke collecting hood (10).

2. The range hood according to claim 1, characterized in that: The oil guide bracket (40) is detachably connected to the push arm (31); and / or the oil guide bracket (40) is configured as a non-metal bracket or a metal bracket.

3. The range hood according to claim 2, characterized in that: The oil guide bracket (40) comprises an oil guide bottom plate (41) and two oil guide side plates (42) connected to opposite sides of the oil guide bottom plate (41); the two oil guide side plates (42) cooperate with the oil guide bottom plate (41) to form a groove (43); the push arm (31) extends into the groove (43) and is rotatably connected to the front ends of the two oil guide side plates (42).

4. The range hood according to claim 3, characterized in that: The distance S between the front ends of the two oil guide side plates (42) tends to decrease in a direction approaching the oil guide bottom plate (41).

5. The range hood according to claim 3, characterized in that: The oil guide bracket (40) further comprises one or more reinforcing ribs (44) connected between the oil guide bottom plate (41) and the oil guide side plate (42).

6. The range hood according to claim 1, characterized in that: The range hood further comprises: A limiting bracket (50), wherein the limiting bracket (50) is arranged inside the smoke collecting hood (10) and connected to the back plate (13) of the smoke collecting hood (10); the limiting bracket (50) is provided with a clamping portion (511) protruding toward the oil guide bracket (40), and the clamping portion (511) is used to clamp the oil guide bracket (40) when the smoke collecting plate (20) is in a closed state.

7. The range hood according to claim 6, characterized in that: The limiting bracket (50) comprises a first guide plate (51) which is arranged at an angle with the back plate (13), and the distance d1 between the first guide plate (51) and the back plate (13) tends to decrease from top to bottom; the first guide plate (51) is used to support the second end of the oil guide bracket (40) to guide the oil guide bracket (40) to be accommodated inside the smoke collecting hood (10) when the smoke collecting plate (20) is turned from an open state to a closed state; the clamping portion (511) is connected to the upper portion of the first guide plate (51).

8. The range hood according to claim 6, characterized in that: The limiting bracket (50) also includes a second guide plate (52) arranged at an angle with the back plate (13), and the distance d2 between the second guide plate (52) and the back plate (13) tends to increase from top to bottom; the second guide plate (52) is located below the push arm (31) and above the clamping portion (511), and the second guide plate (52) can guide the push arm (31) that will be in contact with it during the assembly process, so that the push arm (31) extends outward from the inside of the smoke hood (10).

9. The range hood according to claim 8, characterized in that: The limiting bracket (50) further comprises a third guide plate (53) connected to the upper end of the second guide plate (52), and the third guide plate (53) is arranged to extend downwardly and obliquely in a direction close to the back plate (13).

10. The range hood according to any one of claims 6 to 9, characterized in that: The range hood further comprises an oil guide groove (60) arranged inside the fume hood (10) and located below the oil guide bracket (40) and the limit bracket (50); the oil guide groove (60) is inclined downward from front to rear, and its front and rear ends are respectively connected to the front plate (16) and the back plate (13) of the fume hood (10); And / or, a guide member (15) for supporting and guiding the oil guide bracket (40) is provided on the hole wall of the movable hole (12), and the guide member (15) extends downwardly from the front to the back into the interior of the smoke collecting hood (10).

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