A top-mounted range hood

Abstract

The present invention relates to the technical field of kitchen appliances, and particularly relates to a top-suction range hood. The top-suction range hood provided by the present invention includes a main body and a smoke guide device. An air inlet facing downward and communicating with a flue is provided on the main body. The first end of the smoke guide device is rotatably connected to the main body, and the second end of the smoke guide device is detachably connected to the main body. When the range hood is not working, the smoke guide device is retracted into the main body. Since this application is a top-suction range hood, the space between the main body and the cooking hob tabletop is larger; when the range hood is working, the second end of the smoke guide device is separated from the main body, the smoke guide device rotates to open the air inlet, and a smoke gathering cavity is formed between the smoke guide device and the main body. Since the smoke guide device rotates downward to form the smoke gathering cavity, the air inlet of the smoke gathering cavity moves downward and is closer to the cooking stove, which can shorten the movement distance of the cooking fumes. The cooking fumes enter the smoke gathering cavity in the first time, and thus the smoke exhaust effect of the range hood can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and particularly relates to a top - suction range hood. Background Art

[0002] Household range hoods are tools installed above cooking utensils to exhaust oil fumes. The oil fume exhaust effect and the occupied kitchen space are the main bases for users to choose range hoods.

[0003] Range hoods can generally be divided into side - suction range hoods and top - suction range hoods. Among them, the side - suction range hood is a technology that sucks in air and oil fumes from the side. The lower end of the side - suction range hood is relatively close to the stove, so its smoke inlet is closer to the oil fume source, which can lock the generated oil fumes in the first time and effectively shorten the moving distance of the oil fumes rising. However, because the lower end of the range hood is relatively close to the stove, it occupies too much space under the cabinet, which easily makes users feel depressed.

[0004] The top - suction range hood is suspended above the stove. The position of the smoke inlet of the top - suction range hood is relatively far from the cooking area. Although it saves kitchen space, its smoking effect is poor. Summary of the Invention

[0005] (1) The technical problem to be solved by the present invention is that the existing range hoods cannot improve the smoking effect while saving space.

[0006] (2) Technical Solution

[0007] To solve the above - mentioned technical problem, an embodiment of the present invention provides a range hood, including a main body and a smoke - guiding device. A flue is formed inside the main body. The main body is provided with a smoke inlet facing downward, and the smoke inlet is communicated with the flue. The smoke - guiding device is arranged at the smoke inlet. The smoke - guiding device has opposite first and second ends. The first end of the smoke - guiding device is rotatably connected to the main body, and the second end of the smoke - guiding device is detachably connected to the main body. When the second end of the smoke - guiding device is connected to the main body, the smoke - guiding device is received inside the main body. When the second end of the smoke - guiding device is separated from the main body, a smoke - gathering cavity communicating with the smoke inlet is formed between the smoke - guiding device and the main body.

[0008] According to an embodiment of the present invention, the smoke - guiding device includes a baffle plate, and the baffle plate has opposite first and second ends;

[0009] The first end of the baffle plate is rotatably connected to the main body, and the second end of the baffle plate is detachably connected to the main body.

[0010] According to an embodiment of the present invention, the smoke - guiding device further includes an oil - screen assembly, and the oil - screen assembly is connected to the second end of the baffle plate;

[0011] When the second end of the baffle is connected to the main body, the oil screen assembly is received into the main body; when the second end of the baffle is separated from the main body, a smoke gathering cavity is formed between the baffle and the oil screen assembly, and through holes communicating the smoke gathering cavity with the outside are provided on the oil screen assembly.

[0012] According to an embodiment of the present invention, the oil screen assembly includes a first oil screen and a second oil screen, and the through holes are provided on both the first oil screen and the second oil screen;

[0013] One end of the first oil screen is rotatably connected to the main body, the other end of the first oil screen is rotatably connected to one end of the second oil screen, and the other end of the second oil screen is rotatably connected to the second end of the baffle.

[0014] According to an embodiment of the present invention, a first rotating shaft is connected to the main body, a first shaft sleeve is connected to the first oil screen, and the first oil screen is rotationally engaged with the main body through the cooperation of the first rotating shaft and the first shaft sleeve.

[0015] According to an embodiment of the present invention, the first oil screen includes a first frame and a first mesh sheet disposed within the first frame, and at least one of the through holes is formed in the first mesh sheet;

[0016] A first bracket is connected to the first frame, and the first shaft sleeve is connected to the first bracket.

[0017] According to an embodiment of the present invention, a second rotating shaft is connected to the first oil screen, a second shaft sleeve is connected to the second oil screen, and the first oil screen is rotationally engaged with the second oil screen through the cooperation of the second rotating shaft and the second shaft sleeve.

[0018] According to an embodiment of the present invention, the second oil screen includes a second frame and a second mesh sheet disposed within the second frame, and at least one of the through holes is formed within the second mesh sheet;

[0019] A second bracket is connected to the first oil screen, a third bracket is connected to the second frame, the second rotating shaft is connected to the second bracket, and the second shaft sleeve is connected to the third bracket.

[0020] According to an embodiment of the present invention, a third shaft sleeve is connected to the second oil screen, a third rotating shaft is connected to the second end of the baffle, and the baffle is rotationally connected to the second oil screen through the cooperation of the third rotating shaft and the third shaft sleeve.

[0021] According to an embodiment of the present invention, blocking mechanisms are respectively connected to both sides of the baffle;

[0022] When the second end of the baffle is connected to the main body, the blocking mechanism is received into the main body; when the second end of the baffle is separated from the main body, a smoke collecting cavity is formed among the baffle, the oil screen assembly and the blocking mechanism.

[0023] According to an embodiment of the present invention, the blocking mechanism includes a rotating shaft and a blocking member;

[0024] The blocking member is made of a flexible material and wound around the scroll, the scroll is fixed in the smoke inlet, and the blocking member is connected to the baffle.

[0025] According to an embodiment of the present invention, an oil cup is connected to the lower end of the second oil screen.

[0026] The beneficial effects of the present invention: The top-suction range hood provided by the present invention includes a main body and a smoke guiding device. The main body is provided with a smoke inlet facing downward and communicating with a flue. The first end of the smoke guiding device is rotatably connected to the main body, and the second end of the smoke guiding device is detachably connected to the main body. When the range hood is not working, the smoke guiding device is received into the main body. Since this application is a top-suction range hood, the space between the main body and the stove top is larger; when the range hood is working, the second end of the smoke guiding device is separated from the main body, and the second end of the smoke guiding device rotates downward around the first end to open the smoke inlet. At this time, a smoke collecting cavity is formed between the smoke guiding device and the main body. Since the smoke guiding device rotates downward to form a smoke collecting cavity, the smoke inlet of the smoke collecting cavity moves downward and is closer to the stove, that is, closer to the oil fume source, which can shorten the movement distance of the oil fume. The oil fume enters the smoke collecting cavity in the first time and is discharged into the flue through the smoke collecting cavity, thereby improving the smoke exhaust effect of the range hood. Description of the Drawings

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 The front view of the top-suction range hood in the closed state provided by an embodiment of the present invention;

[0029] Figure 2 The side view of the top-suction range hood in the closed state provided by an embodiment of the present invention;

[0030] Figure 3 The front view of the top-suction range hood in the open state provided by an embodiment of the present invention;

[0031] Figure 4Side view of a top - suction range hood in the open state provided by an embodiment of the present invention;

[0032] Figure 5 Exploded view of a top - suction range hood provided by an embodiment of the present invention;

[0033] Figure 6 Side view of a baffle from the closed state to the open state provided by an embodiment of the present invention;

[0034] Figure 7 For Figure 6 Enlarged view of part A;

[0035] Figure 8 Side view of an oil - screen assembly;

[0036] Figure 9 Top view of an oil - screen assembly;

[0037] Figure 10 Schematic diagram of an oil cup;

[0038] Figure 11 Schematic diagram of a rotating fixing base;

[0039] Figure 12 Exploded view of a top - suction range hood provided by another embodiment of the present invention;

[0040] Figure 13 Side view of a top - suction range hood in the closed state provided by another embodiment of the present invention;

[0041] Figure 14 For Figure 13 Enlarged view of part B;

[0042] Figure 15 Side view of a top - suction range hood in the open state provided by another embodiment of the present invention;

[0043] Figure 16 For Figure 15 Enlarged view of part C;

[0044] Figure 17 For Figure 15 Enlarged view of part D;

[0045] Figure 18 Schematic diagram of the structure of the cooperation between the second oil screen and the baffle;

[0046] Figure 19 Schematic diagram of a pressure - sensing mechanism.

[0047] Icons: 1 - top - suction range hood; 11 - housing; 12 - smoke collecting hood; 121 - smoke inlet; 122 - shaft seat; 1221 - first rotating shaft; 123 - oil box; 124 - blocking mechanism;

[0048] 13 - Smoke guiding device; 131 - Baffle; 1311 - Lining plate; 1312 - Third rotating shaft; 132 - Oil screen assembly; 1321 - First oil screen; 13211 - First frame; 13212 - First mesh; 13213 - First bracket; 13214 - Second bracket; 13215 - First bushing; 13216 - Second rotating shaft;

[0049] 1322 - Second oil screen; 13221 - Second frame; 13222 - Second mesh; 13223 - Third bracket; 13224 - Fourth bracket; 13225 - Second bushing; 13226 - Third bushing; 1323 - Through hole;

[0050] 14 - Volute assembly; 15 - Oil cup; 151 - Flange; 152 - Rotating fixing seat;

[0051] 16 - Pressure - sensing mechanism; 161 - Fixed block; 1611 - Chute; 162 - Connecting column; 1621 - Fixed groove; 1622 - Fixed ball; 163 - First elastic member; 164 - Second elastic member; 165 - Mounting hole;

[0052] 17 - Magnetic fixing mechanism; 171 - Electromagnet; 172 - Magnetic part; 173 - Boat - shaped switch. Detailed implementation manners

[0053] In order to more clearly understand the above - mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0054] An embodiment of the present invention provides a top - suction range hood 1, as Figures 1 to 19As shown in the figure, the top - suction range hood 1 includes a main body and a smoke - guiding device 13. A flue is formed inside the main body. An air inlet 121 facing downward is provided on the main body, and the air inlet 121 is communicated with the flue. The smoke - guiding device 13 is arranged at the air inlet 121. The smoke - guiding device 13 has opposite first and second ends. The first end of the smoke - guiding device 13 is rotatably connected to the main body, and the second end of the smoke - guiding device 13 is detachably connected to the main body. When the second end of the smoke - guiding device 13 is connected to the main body, the smoke - guiding device 13 is received inside the main body. When the second end of the smoke - guiding device 13 is separated from the main body, a smoke - gathering cavity communicating with the air inlet 121 is formed between the smoke - guiding device 13 and the main body.

[0055] The top - suction range hood 1 provided in this embodiment includes a main body and a smoke - guiding device 13. An air inlet 121 facing downward and communicating with the flue is provided on the main body. The first end of the smoke - guiding device 13 is rotatably connected to the main body, and the second end of the smoke - guiding device 13 is detachably connected to the main body. When the range hood is not working, the smoke - guiding device 13 is received inside the main body. Since this application is a top - suction range hood 1, the space between the main body and the stove top is larger. When the range hood is working, the second end of the smoke - guiding device 13 is separated from the main body, and the second end of the smoke - guiding device 13 rotates downward around the first end to open the air inlet 121. At this time, a smoke - gathering cavity is formed between the smoke - guiding device 13 and the main body. Since the smoke - guiding device 13 rotates downward to form the smoke - gathering cavity, the smoke - inlet area of the smoke - gathering cavity moves downward and is closer to the stove, that is, closer to the oil - smoke source, which can shorten the movement distance of the oil - smoke. The oil - smoke enters the smoke - gathering cavity in the first time and is discharged into the flue through the smoke - gathering cavity, thereby improving the smoke - exhausting effect of the range hood. Compared with the existing top - suction range hood 1, the top - suction range hood 1 provided in this application can adjust the smoke - guiding device 13 according to the working state, which not only ensures sufficient operating space between the top - suction range hood 1 and the stove top, but also can lower the air inlet 121 when the range hood is working, shorten the movement distance of the oil - smoke, and thus reduce the oil - smoke dispersion and improve the oil - smoke absorption effect of the range hood. Compared with the existing side - suction range hood, the top - suction range hood provided in this embodiment can not only ensure the smoke - exhausting effect, but also solve the problem that the side - suction range hood is too close to the stove top and occupies too much space under the cabinet.

[0056] For the top - suction range hood 1 provided by the embodiment of the present invention, the smoke - guiding device 13 can be hidden when not in use, and at the same time, the smoke - inlet position of the whole range hood can be adjusted. According to the size of the cooking smoke volume, the air inlet 121 moves downward, and the negative - pressure area moves with the movement of the air inlet 121. According to the cooking situation, the rotation - opening area can be adjusted, which saves costs, improves the local negative - pressure area, and enhances the smoking effect.

[0057] According to an embodiment of the present invention, the smoke guiding device 13 includes a baffle 131. Preferably, a lining plate 1311 is provided inside the baffle 131, and the lining plate 1311 is detachably connected to the main body. The baffle 131 has opposite first and second ends; the first end of the baffle 131 is rotatably connected to the main body, and the second end of the baffle 131 is detachably connected to the main body; as Figure 1 and Figure 2 shown, when the range hood is not working, the second end of the baffle 131 is connected to the main body. At this time, the baffle 131 blocks the smoke inlet 121. In this embodiment, it is a top - suction range hood 1. Therefore, when the baffle 131 is retracted into the main body, it is generally in a horizontal state, and the distance between the baffle 131 and the cooking stove top surface is larger, which can save space; usually, the range hood in the kitchen is installed under the cabinet. Therefore, the top - suction range hood 1 provided in this embodiment can save the space under the cabinet.

[0058] As Figure 3 and Figure 4 shown, when the range hood is working, the second end of the baffle 131 rotates downward around the first end. When it is opened to the maximum angle, the baffle 131 is generally in a vertical state. At this time, a smoke - gathering cavity is formed between the baffle 131 and the main body. The second end of the baffle 131 moves downward, and an inlet area for the entire top - suction range hood 1 is formed between the baffle 131 and the main body. At this time, the inlet area of the entire top - suction range hood 1 moves downward, which can improve the smoking effect.

[0059] As Figure 5 、 Figure 6 and Figure 8 shown, in this embodiment, the smoke guiding device 13 further includes an oil - mesh assembly 132, and the oil - mesh assembly 132 is connected to the second end of the baffle 131; when the second end of the baffle 131 is connected to the main body, the oil - mesh assembly 132 is retracted into the main body; when the second end of the baffle 131 is separated from the main body, a smoke - gathering cavity is formed between the baffle 131 and the oil - mesh assembly 132, and through - holes 1323 communicating the smoke - gathering cavity and the outside are provided on the oil - mesh assembly 132. In this embodiment, when the range hood is working, the baffle 131 rotates downward, and at this time, it can drive the oil - mesh to move downward synchronously. When the baffle 131 rotates to the maximum angle, a smoke - gathering cavity is formed among the baffle 131, the oil - mesh assembly 132 and the main body. At this time, the oil - mesh assembly 132 is connected between the baffle 131 and the main body. At this time, the oil - mesh assembly 132 is the inlet area of the top - suction range hood 1. The cooking - generated flue gas enters the smoke - gathering cavity through the through - holes 1323 on the oil - mesh assembly 132. Therefore, the inlet area of the top - suction range hood 1 moves downward, which can improve the smoke inlet effect; at the same time, the oil - mesh assembly 132 can also filter the grease in the flue gas.

[0060] According to an embodiment of the present invention, as Figure 5 , Figure 8 , Figure 9 and Figure 12 shown, the oil screen assembly 132 includes a first oil screen 1321 and a second oil screen 1322, and through holes 1323 are provided on both the first oil screen 1321 and the second oil screen 1322; one end of the first oil screen 1321 is rotatably connected to the main body, the other end of the first oil screen 1321 is rotatably connected to one end of the second oil screen 1322, and the other end of the second oil screen 1322 is rotatably connected to the second end of the baffle 131.

[0061] In this embodiment, the oil screen assembly 132 includes a first oil screen 1321 and a second oil screen 1322, and the first oil screen 1321 and the second oil screen 1322 are rotatably connected. The first oil screen 1321 is rotatably connected to the main body, and the second oil screen 1322 is rotatably connected to the baffle 131, as Figure 1 , Figure 2 and Figure 13 shown. Therefore, when the range hood is not working, the first oil screen 1321, the second oil screen 1322 and the baffle 131 are folded and retracted into the main body through the rotational connection. The second end of the baffle 131 is connected to the main body. At this time, both the first oil screen 1321 and the second oil screen 1322 are retracted into the main body and are blocked by the baffle 131, so that dust and sundries will not enter the flue through the oil screen. At the same time, the first oil screen 1321 and the second oil screen 1322 are folded with each other when being stored, which saves more space inside the main body.

[0062] As Figure 3 , Figure 6 and Figure 15 shown, when the range hood is working, the second end of the baffle 131 rotates downward, driving the second oil screen 1322 to rotate relative to the baffle 131, the second oil screen 1322 to rotate relative to the first oil screen 1321, and the first oil screen 1321 to rotate relative to the main body. At this time, the first oil screen 1321, the second oil screen 1322 and the baffle 131 are unfolded, and a smoke collecting cavity is formed between the first oil screen 1321, the second oil screen 1322, the baffle 131 and the main body. The cooking fumes are introduced into the smoke collecting cavity through the through holes 1323 on the first oil screen 1321 and the second oil screen 1322. Since the first oil screen 1321 and the second oil screen 1322 are rotatably connected to each other, when the first oil screen 1321 and the second oil screen 1322 are unfolded, the position of the smoke inlet area moves downward further, and the distance between the smoke inlet area and the smoke source is closer, which can improve the smoking effect.

[0063] In this embodiment, the upper end of the first oil screen 1321 is connected to the main body, and the lower end is connected to the second oil screen 1322. The upper end of the second oil screen 1322 is connected to the first oil screen 1321, and the lower end is connected to the baffle 131. The first end of the baffle 131 is the upper end, and the second end of the baffle 131 is the lower end. As Figure 6 , Figure 13 , and Figure 14 shown, a shaft seat 122 is provided on the main body, a first rotating shaft 1221 is connected to the shaft seat 122, the upper end of the first oil screen 1321 is connected with a first shaft sleeve 13215, and the upper end of the first oil screen 1321 is rotatably connected to the main body through the rotational cooperation of the first rotating shaft 1221 and the first shaft sleeve 13215.

[0064] Preferably, in this embodiment, the first oil screen 1321 includes a first frame 13211 and a first mesh 13212 disposed within the first frame 13211. The first mesh 13212 can be formed by intersecting iron wires or steel wires to form a grid-like structure, thereby forming a plurality of through holes 1323. Of course, the first mesh 13212 can also be a plate-like structure, and a plurality of through holes 1323 are formed in the first mesh 13212. Optionally, in this embodiment, the first mesh 13212 is a plate-like structure, and a plurality of long strip-shaped through holes 1323 are formed in the first mesh 13212. In this embodiment, the upper end of the first frame 13211 is connected with a first bracket 13213, and the first shaft sleeve 13215 is integrated on the first bracket 13213, wherein the first bracket 13213 can be connected to the first shaft sleeve 13215 by welding or can be an integrally formed structure. In this embodiment, the first oil screen 1321 can also be rotatably connected to the main body by means of a hinge or a bearing in cooperation with a rotating shaft.

[0065] As Figure 6 , and Figure 8 shown, according to an embodiment of the present invention, the lower end of the first oil screen 1321 is connected with a second bracket 13214, a second rotating shaft 13216 is connected to the second bracket 13214, the upper end of the second oil screen 1322 is connected with a third bracket 13223, and a second shaft sleeve 13225 is connected to the third bracket 13223; the lower end of the first oil screen 1321 is rotatably engaged with the upper end of the second oil screen 1322 through the cooperation of the second rotating shaft 13216 and the second shaft sleeve 13225.

[0066] Optionally, as Figure 6 , and Figure 8As shown, in this embodiment, the second oil screen 1322 includes a second frame 13221 and a second mesh sheet 13222 disposed within the second frame 13221. At least one through hole 1323 is formed within the second mesh sheet 13222. The second mesh sheet 13222 may be formed by intersecting iron wires or steel wires to form a grid-like structure, thereby forming a plurality of through holes 1323. Of course, the second mesh sheet 13222 may also be a plate-like structure, with a plurality of through holes 1323 formed thereon. Optionally, in this embodiment, the second mesh sheet 13222 is a plate-like structure, and a plurality of elongated through holes 1323 are formed on the second mesh sheet 13222. The upper end of the second frame 13221 is connected to the third bracket 13223, and the lower end of the second frame 13221 is connected to the fourth bracket 13224. A third rotating shaft 1312 is connected to the fourth bracket 13224, and a third shaft sleeve 13226 is connected to the baffle 131. The baffle 131 is rotatably connected to the second oil screen 1322 through the cooperation of the third rotating shaft 1312 and the third shaft sleeve 13226.

[0067] According to an embodiment of the present invention, as Figure 4 shown, blocking mechanisms 124 are respectively connected to both sides of the baffle 131. When the second end of the baffle 131 is connected to the main body, the blocking mechanisms 124 are received within the main body. When the second end of the baffle 131 is separated from the main body, a smoke gathering cavity is formed between the baffle 131, the oil screen assembly 132, and the blocking mechanisms 124. By providing the blocking mechanisms 124, the smoke gathering cavity can be made to communicate with the outside only through the through holes 1323 in the oil screen assembly 132. That is to say, a relatively airtight smoke gathering cavity can be formed between the baffle 131, the oil screen assembly 132, and the blocking mechanisms 124. The smoke generated during cooking can only enter the smoke gathering cavity through the oil screen assembly 132, thereby preventing the oil fume that enters the smoke gathering cavity from escaping to the outside, and thus improving the smoke exhaust effect.

[0068] Preferably, in this embodiment, the blocking mechanism includes a rotating shaft and a blocking member. The blocking member is made of a flexible material and wound around the scroll. The scroll is fixed within the smoke inlet 121, and the blocking member is connected to the baffle 131. In this embodiment, the scroll can rotate. When the range hood is not working, the blocking member is wound around the scroll, the scroll is located within the main body, and the oil screen assembly 132 is also received within the main body. When the range hood is working, the lower end of the baffle 131 rotates downward, driving the scroll to rotate, and the blocking member wound around the scroll unfolds. At this time, a smoke gathering cavity is formed between the baffle 131, the blocking members located on both sides of the baffle 131, the oil screen assembly 132, and the main body, and the blocking member can prevent the oil fume that enters the smoke gathering cavity from escaping.

[0069] Preferably, in this embodiment, the blocking member is a nylon cloth, which is wound around a reel. The reel can rotate as the baffle 131 is opened, so that the blocking member can be unfolded as the baffle 131 is opened. Moreover, an automatic reset member is provided on the reel. When the baffle 131 rotates upward and retracts into the main body, the reset member can drive the reel to rotate, so that the blocking member is wound around the reel again. In this embodiment, the reset member can be a torsion spring (similar to the structure of a tape measure). Of course, in this embodiment, a separate motor can also be provided to drive the reel to rotate, which can also achieve the reset of the blocking member.

[0070] Of course, in this embodiment, the blocking member can also be made of other materials, such as a rubber sheet. When the baffle 131 rotates downward, the baffle 131 can stretch the rubber sheet to deform and elongate, so as to close the smoke collection cavity and prevent the smoke entering the smoke collection cavity from escaping to the outside.

[0071] It can be understood that in this embodiment, the blocking mechanism 124 can also be a rigid structure. For example, the blocking mechanism 124 is a plastic plate, a steel plate, etc. An opening for the blocking mechanism 124 to pass through is provided on the main body. When the range hood is not working, the baffle 131 and the blocking mechanism 124 extend into the main body. When the baffle 131 rotates downward, it will drive the blocking mechanism 124 to move out of the main body. At this time, the blocking mechanism 124 does not completely move out of the main body, and a part of it is still located inside the main body to ensure the sealing performance of the smoke collection cavity.

[0072] According to an embodiment of the present invention, as Figure 5 、 Figure 6 、 Figure 12 and Figure 13 shown, the main body of the top - suction range hood 1 provided in this embodiment includes a smoke collection hood 12 and a housing 11. A volute assembly 14 is provided inside the housing 11, and a wind channel is formed inside the volute assembly 14. The smoke collection hood 12 is installed at the lower end of the housing 11, and a smoke inlet 121 communicating with the flue is provided on the smoke collection hood 12. As Figure 1 、 Figure 3 、 Figure 5 and Figure 12 shown, a plurality of smoke inlets 121 are provided on the smoke collection hood 12, and a smoke guiding device 13 is provided in each smoke inlet 121, that is, a baffle 131 and an oil mesh assembly 132 are provided at each smoke inlet 121. At this time, the user can select to open the smoke inlet 121 according to the usage situation of the cooking appliance. As Figure 1 、 Figure 3 、 Figure 5 and Figure 12 shown, two smoke inlets 121 are provided on the smoke collection hood 12, and a smoke guiding device 13 is provided at each smoke inlet 121, which can flexibly adjust the working state of the range hood, thereby saving energy and improving the smoke extraction efficiency.

[0073] Optionally, a lighting lamp is further provided in the smoke collecting chamber, and the lighting lamp is arranged in a one-to-one correspondence with the smoke inlet 121. By arranging the lighting lamp, the stove can be illuminated during cooking.

[0074] According to one embodiment of the present invention, Figure 10 and Figure 18 As shown, the lower end of the second oil net 1322 is connected to an oil cup 15. When the range hood is working, the baffle 131 rotates downward, driving the first oil net 1321 and the second oil net 1322 to unfold. At this time, when the oil smoke enters the smoke collecting chamber, it will drip downward along the first oil net 1321 and the second oil net 1322. At this time, the oil cup 15 is arranged at the lower end of the second oil net 1322, which can better collect grease and prevent grease from dripping on the stove, and the user's experience is better. It can be understood that in this embodiment, the oil cup 15 can also be arranged on the baffle 131. The oil cup 15 is located at the connection between the baffle and the second oil net 1322, and is used to collect the grease on the second oil net 1322 that flows downward due to gravity.

[0075] like Figure 5 and Figure 6 As shown, the fume hood 12 is also provided with an oil box 123, so that when the baffle 131 closes the smoke inlet 121, the grease on the first oil net 1321 and the second oil net 1322 flows into the oil box 123, further improving the grease collection effect and preventing the grease from falling on the stove countertop. Preferably, in this embodiment, the oil box 123 is provided on the fume hood 12, and the bottom surface of the fume hood 12 is an inclined plane. Specifically, the fume hood 12 is inclined from top to bottom from the rear end to the front end, and the oil box 123 is provided at the front end of the fume hood 12. The inclined setting of the fume hood 12 can facilitate grease collection. It should be noted that although the fume hood 12 is inclined in this embodiment, it is only inclined at a small angle, which is different from the inclination of the side-suction range hood, and in this embodiment, the front end refers to the end facing the user, and the rear end is the end away from the user.

[0076] Preferably, in this embodiment, the oil cup 15 can rotate. Since the first oil net 1321 and the second oil net 1322 rotate with the rotation of the baffle 131, if the opening of the oil cup 15 is fixed in direction, the opening of the oil cup 15 will tilt to the side or downward, and the grease in the oil cup 15 will flow out and drip onto the baffle 131 or the smoke hood 12. Therefore, in this application, a rotating mechanism is provided to drive the oil cup 15 to rotate, thereby ensuring that the opening of the oil cup 15 is always facing upward, thereby preventing the grease in the oil cup 15 from flowing out; Figure 16 and Figure 17 As shown, the direction of the arrow in the figure represents the flow direction of grease on the first oil net 1321 and the second oil net 1322.

[0077] As Figure 10 and Figure 11 shown, in this embodiment, the rotating mechanism includes a rotating fixed seat 152 and a rotating shaft. The oil cup 15 is fixedly connected to the rotating fixed seat 152. The rotating shaft is connected to the rotating fixed seat 152, and the driving motor is in transmission connection with the rotating shaft to drive the rotating shaft to rotate, and then drive the oil cup 15 to rotate through the rotating shaft. Among them, the rotating fixed seat 152 is fixed at the lower end of the second oil screen 1322. An axial hole is provided on the rotating fixed seat 152, and the rotating shaft is inserted into the axial hole to drive the rotating fixed seat 152 to rotate.

[0078] As Figure 10 shown, the oil cup 15 is a box-shaped structure with an open upper end. A baffle 151 is connected to the open end of the oil cup 15 along the length direction. The two baffles 151 form a flared structure at the upper end of the oil cup 15, which can better collect the dropped grease.

[0079] According to an embodiment of the present invention, as Figures 5 to 7 shown, the top-suction range hood 1 further includes a pressure sensing mechanism 16. The lower end of the baffle 131 is detachably connected to the main body (detachably connected to the smoke collecting hood 12) through the pressure sensing mechanism 16. When the range hood is not working, it is connected to the smoke collecting hood 12 through the pressure sensing mechanism 16. When the range hood is working, only need to press the baffle 131, and the baffle 131 can automatically open under the action of the pressure sensing mechanism 16, and the user operation is very convenient.

[0080] In this embodiment, the pressure sensing mechanism 16 includes a first elastic member 163, a connecting member and a fixing member; the connecting member is connected to the second end of the smoke guiding device 13, the fixing member abuts against the connecting member, and a fixing friction force is formed between the fixing member and the connecting member. The first elastic member 163 abuts against the connecting member to provide a restoring force for the connecting member; in this embodiment, the connecting member is in a rod-shaped or columnar structure. When the baffle 131 is in a closed state, the fixing member abuts against the side wall of the connecting member, and at this time, a fixing friction force is generated between the fixing member and the connecting member, and at this time, the first elastic member 163 can be in a compressed state or a normal state, and the fixing friction force is equal to the gravity of the smoke guiding device 13 and the restoring force of the first elastic member 163; specifically, the component of the fixing friction force in the vertical direction is greater than the sum of the components of the gravity of the smoke guiding device 13 and the restoring force in the vertical direction, so as to be able to fix the smoke guiding plate on the smoke collecting hood 12.

[0081] When the second end of the smoke guiding device 13 is connected to the main body, the fixed frictional force is equal to the sum of the smoke guiding resistance and the restoring force; when the smoke guiding device 13 is pressed, the first elastic member 163 contracts, and the sum of the restoring force and the gravity of the smoke guiding device 13 is greater than the fixed frictional force. At this time, the baffle 131 automatically opens, and the first oil screen 1321 and the second oil screen 1322 are also driven by the baffle 131 to unfold from the folded state.

[0082] As Figure 6 and Figure 19 shown, the connecting member is a connecting column 162. The connecting column 162 is inside the baffle 131. A sliding groove 1611 is provided on the smoke collecting hood 12. The connecting column 162 is adapted to the sliding groove 1611 and can slide in the sliding groove 1611. A through hole is formed in the side wall of the sliding groove 1611. The fixing member is a second elastic member 164. One end of the second elastic member 164 passes through the through hole and abuts against the connecting column 162, and the other end is fixed to the inner wall of the smoke collecting hood 12. When the second elastic member 164 is in a compressed state, it will provide a pressure to the connecting column 162. Therefore, a frictional fixing force will be generated between the second elastic member 164 and the connecting column 162 to fix the baffle 131 in the smoke collecting hood 12. Among them, in this embodiment, second elastic members 164 are symmetrically provided on both sides of the connecting column 162, and the elastic forces of the second elastic members 164 on both sides cancel each other out. Therefore, the second elastic member 164 will not push the connecting column 162 to translate, and the elastic forces applied by the two second elastic members 164 to the connecting column 162 can ensure that the frictional force between the second elastic member 164 and the connecting column 162 can fix the baffle 131.

[0083] As Figure 7 and Figure 19 shown, the fixing member further includes a fixing ball 1622. A fixing groove 1621 is formed in the side wall of the connecting column 162. The end of the second elastic member 164 abuts against the fixing ball 1622, and the fixing ball 1622 cooperates with the fixing groove 1621. When the baffle 131 is in a closed state, at this time, the two fixing balls 1622 respectively enter the corresponding fixing grooves 1621. At this time, the component of the fixing frictional force between the fixing ball 1622 and the connecting column 162 in the vertical direction is equal to the sum of the component of the first elastic member 163 in the vertical direction and the gravity of the smoke guiding device 13, and the smoke guiding device 13 is fixed; when the user presses the baffle 131, the connecting column 162 compresses the first elastic member 163, and the restoring force of the first elastic member 163 increases. At this time, the component of the restoring force of the first elastic member 163 in the vertical direction and the gravity of the smoke guiding device 13 are greater than the component of the frictional force between the fixing ball 1622 and the connecting column 162 in the vertical direction. At this time, the baffle 131 can automatically open.

[0084] As Figure 7and Figure 19 As shown in Figure 19 , in this embodiment, both the first elastic member 163 and the second elastic member 164 are compression springs. One end of the first elastic member 163 abuts against the end of the connecting column 162, and the other end is fixedly connected to the smoke collecting hood 12. At this time, when the baffle 131 is pressed, the connecting column 162 will directly compress the first elastic member 163, thereby ensuring that the baffle 131 can be opened smoothly.

[0085] As Figure 7 and Figure 19 As shown in Figure 7 and Figure 19 , in this embodiment, the pressure sensing mechanism 16 further includes a fixing block 161. The fixing block 161 is provided with the sliding groove 1611. An installation hole 165 is provided on the bottom wall of the sliding groove 1611. The first elastic member 163 is a compression spring, which has a simple structure and strong applicability. The compression spring is arranged in the installation hole 165. When the connecting column 162 is located in the sliding groove 1611, one end of the compression spring abuts against the connecting member, and the other end abuts against the bottom wall of the installation hole 165.

[0086] According to another embodiment of the present invention, as Figures 12 to 14 shown in Figures 12 to 14 , a magnetic fixing mechanism 17 is provided between the second end of the baffle 131 and the main body. The magnetic fixing mechanism 17 can generate a magnetic force, and the second end is detachably connected to the main body through the magnetic fixing mechanism 17.

[0087] In this embodiment, the magnetic fixing mechanism 17 is used to fix the second end of the smoke guiding device 13 when the second end of the smoke guiding device 13 is connected to the main body. Since the magnetic fixing mechanism 17 can generate a magnetic force, the second end of the smoke guiding device 13 and the main body are detachably connected by magnetic attraction, which is convenient for users to use.

[0088] As Figure 14 shown in Figure 14 , the magnetic fixing mechanism 17 includes an electromagnet 171 and a magnetic member 172. The electromagnet 171 can generate a magnetic force when energized. The electromagnet 171 is arranged on the main body, and the magnetic member 172 is arranged at the second end of the baffle 131. When the baffle 131 is closed, the magnetic attraction force between the electromagnet 171 and the magnetic member 172 can overcome the gravity of the smoke guiding device 13, and then the smoke guiding device 13 can be fixed in the main body through the electromagnet 171 and the magnetic member 172.

[0089] In this embodiment, the electromagnet 171 is used to generate a magnetic force, and the magnetic member 172 is used to adsorb to the electromagnet 171. The magnetic member 172 can be made of any material such as iron, cobalt, nickel, etc. that can adsorb to the electromagnet 171.

[0090] According to an embodiment of the present invention, the top - suction range hood 1 further includes a control mechanism, which can control the energization and de - energization of the electromagnet 171, and further control the opening and closing of the baffle 131.

[0091] According to an example of this embodiment, the control mechanism includes a first control switch, and the first control switch is electrically connected to the coil of the electromagnet 171. When the range hood is not working, the first control switch controls the electromagnet 171 to be energized. The magnetic attraction force between the electromagnet 171 and the magnetic member 172 overcomes the gravity of the smoke - guiding device 13. At this time, the baffle 131 is fixed in the main body. When the range hood is working, press the first control switch. At this time, the electromagnet 171 is de - energized, and the baffle 131 opens under the action of its own gravity and the gravity of the oil - mesh assembly 132. After the range hood finishes working, the user manually pushes the baffle 131 up. At this time, press the first control switch, and the electromagnet 171 is energized to adsorb and fix the baffle 131.

[0092] According to another example of this embodiment, the control mechanism includes a first control switch and a second control switch, and the first control switch and the second control switch are connected in series; the first control switch and the second control switch jointly control the opening and closing of the baffle 131.

[0093] Preferably, in this embodiment, the second control switch is a rocker switch 173, and the rocker switch 173 is arranged on the rotation trajectory of the baffle 131, that is, when the baffle 131 rotates, it will touch the second control switch. When the range hood is not working, both the first control switch and the second control switch are in the open state, and the electromagnet 171 is energized. The magnetic attraction force between the electromagnet 171 and the magnetic member 172 overcomes the gravity of the smoke - guiding device 13. At this time, the baffle 131 is fixed in the main body. When the range hood is working, press the first control switch. At this time, the electromagnet 171 is de - energized, and the baffle 131 rotates downward under the action of its own gravity and the gravity of the oil - mesh assembly 132. When the baffle 131 passes by the second control switch, it touches the second control switch, and at this time, the second control switch is in the closed state. After the range hood finishes working, the user manually pushes the baffle 131 up. At this time, the baffle 131 passes by the second control switch, which will reset the second control switch. At this time, the second control switch is in the open state, and then press the first control switch. The first control switch is also in the open state, and the electromagnet 171 is energized to adsorb and fix the baffle 131.

[0094] Since in this example, the opening and closing of the baffle 131 are controlled by two series - connected control switches, other structures can be controlled by the first control switch during the operation of the range hood without affecting the opening and closing state of the baffle 131.

[0095] When the range hood is started, press the first control switch. At this time, the fan starts, and the electromagnet 171 is powered off. The baffle 131 rotates downward under the action of its own gravity and the gravity of the oil screen assembly 132. When the baffle 131 passes by the second control switch, it touches the second control switch, and at this time, the second control switch is in the closed state. After the range hood finishes working, press the first control switch. At this time, the fan stops running, but the electromagnet 171 is still not powered on (the second control switch is in the off state). The user manually pushes the baffle 131 up. At this time, when the baffle 131 passes by the second control switch, it will reset the second control switch, and at this time, the second control switch is in the open state. The electromagnet 171 is powered on to adsorb and fix the baffle 131.

[0096] In this embodiment, the motor that controls the rotation of the oil cup 15 can also be controlled by the first control switch and the second control switch. For example, when the range hood needs to work, press the first control switch. At this time, the fan starts, and the electromagnet 171 is powered off. The baffle 131 rotates downward under the action of its own gravity and the gravity of the oil screen assembly 132. At the same time, the first control switch controls the motor to start. The motor drives the oil cup 15 to rotate. The mouth of the oil cup 15 abuts against the baffle 131. Under the action of gravity, the grease flows from the baffle 131 into the oil cup 15. When the baffle 131 passes by the second control switch, it touches the second control switch, and at this time, the second control switch is in the closed state.

[0097] After the range hood finishes working, press the first control switch. At this time, the fan stops running, but the electromagnet 171 is still not powered on. At the same time, the oil cup 15 does not rotate back to its original position (the second control switch is in the off state). The user manually pushes the baffle 131 up. At this time, when the baffle 131 passes by the second control switch, it will reset the second control switch, and at this time, the second control switch is in the open state. The electromagnet 171 is powered on to adsorb and fix the baffle 131. The oil cup 15 flips back to its original position facing upward to prevent the grease in the oil cup 15 from flowing out.

[0098] According to an embodiment of the present invention, as Figure 15 shown, when the baffle 131 rotates to the maximum angle, a part of the projection of the first oil screen 1321 and the second oil screen 1322 in the horizontal plane overlaps. That is, the lower projection of the first oil screen 1321 will fall on the second oil screen 1322. At this time, the oil droplets on the first oil screen 1321 will fall along the first oil screen 1321 onto the second oil screen 1322, rather than dripping onto the stove top, which can improve the collection effect of resisting grease.

[0099] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It 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. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0100] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral 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, and it can be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0101] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A top-suction range hood, characterized in that, It includes a main body and a smoke guiding device (13). A flue is formed inside the main body. An air inlet (121) facing downward is provided on the main body. The air inlet (121) is communicated with the flue. The smoke guiding device (13) is arranged at the air inlet (121). The smoke guiding device (13) has opposite first and second ends. The first end of the smoke guiding device (13) is rotatably connected to the main body, and the second end of the smoke guiding device (13) is detachably connected to the main body; When the second end of the smoke guiding device (13) is connected to the main body, the smoke guiding device (13) is received inside the main body; when the second end of the smoke guiding device (13) is separated from the main body, a smoke gathering cavity communicated with the air inlet (121) is formed between the smoke guiding device (13) and the main body; The smoke guiding device (13) includes a baffle (131). The baffle (131) has opposite first and second ends. The first end of the baffle (131) is rotatably connected to the main body, and the second end of the baffle (131) is detachably connected to the main body; The smoke guiding device (13) further includes an oil mesh assembly (132). The oil mesh assembly (132) includes a first oil mesh (1321) and a second oil mesh (1322). One end of the first oil mesh (1321) is rotatably connected to the main body. The other end of the first oil mesh (1321) is rotatably connected to one end of the second oil mesh (1322). The other end of the second oil mesh (1322) is rotatably connected to the second end of the baffle (131); The baffle (131), the first oil mesh (1321) and the second oil mesh (1322) form the smoke gathering cavity with the main body.

2. The top-suction range hood according to claim 1, wherein, The oil mesh assembly (132) is connected to the second end of the baffle (131); When the second end of the baffle (131) is connected to the main body, the oil mesh assembly (132) is received inside the main body; when the second end of the baffle (131) is separated from the main body, the smoke gathering cavity is formed between the baffle (131) and the oil mesh assembly (132). Through holes (1323) communicating the smoke gathering cavity and the outside are provided on the oil mesh assembly (132).

3. The top-suction range hood according to claim 2, wherein, The through holes (1323) are provided on both the first oil mesh (1321) and the second oil mesh (1322).

4. The top-suction range hood according to claim 3, characterized in that A first rotating shaft is connected to the main body. A first shaft sleeve (13215) is connected to the first oil mesh (1321). The first oil mesh (1321) is rotatably fitted with the main body through the cooperation of the first rotating shaft and the first shaft sleeve (13215).

5. The top-suction range hood according to claim 4, characterized in that, The first oil mesh (1321) includes a first frame (13211) and a first wire mesh disk (13212) arranged inside the first frame (13211). At least one of the through holes (1323) is formed on the first wire mesh disk (13212); A first support (13213) is connected to the first frame (13211). The first shaft sleeve (13215) is connected to the first support (13213).

6. The top-suction range hood according to claim 3, wherein A second rotating shaft (13216) is connected to the first oil screen (1321), and a second bushing (13225) is connected to the second oil screen (1322). The first oil screen (1321) is rotatably engaged with the second oil screen (1322) through the cooperation of the second rotating shaft (13216) and the second bushing (13225).

7. The top-suction range hood according to claim 6, characterized in that, The second oil screen (1322) includes a second frame (13221) and a second mesh (13222) disposed within the second frame (13221), and at least one through hole (1323) is formed within the second mesh (13222); A second bracket (13214) is connected to the first oil screen (1321), a third bracket (13223) is connected to the second frame (13221), the second rotating shaft (13216) is connected to the second bracket (13214), and the second bushing (13225) is connected to the third bracket (13223).

8. The top-suction range hood according to claim 3, wherein, A third bushing (13226) is connected to the second oil screen (1322), a third rotating shaft (1312) is connected to the second end of the baffle (131), and the baffle (131) is rotatably connected to the second oil screen (1322) through the cooperation of the third rotating shaft (1312) and the third bushing (13226).

9. The top-suction range hood according to any one of claims 2 to 8, characterized in that Blocking mechanisms are respectively connected to both sides of the baffle (131); When the second end of the baffle (131) is connected to the main body, the blocking mechanisms are received into the main body; when the second end of the baffle (131) is separated from the main body, a smoke gathering cavity is formed among the baffle (131), the oil screen assembly (132), and the blocking mechanisms.

10. The top-suction range hood according to claim 9, characterized in that, The blocking mechanisms include a reel and a blocking member; The blocking member is made of a flexible material and wound around the reel. The reel is fixed within the smoke inlet (121), and the blocking member is connected to the baffle (131).

11. The top-suction range hood according to claim 3, wherein, An oil cup (15) is connected to the lower end of the second oil screen (1322).

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