A range hood

Abstract

The application discloses a kind of range hood. The range hood includes fume collecting hood, including fume collecting hood body, main fume collecting cavity with main air inlet in front side is formed in fume collecting hood body, and the upper side of main fume collecting cavity is provided with main air outlet;Flap assembly, the upper end of which is movably connected with fume collecting hood body, flap assembly can swing relative to fume collecting hood body to close and open main air inlet;Air bellow assembly, installed on the upper side of fume collecting hood body and communicated with main air outlet;Flow guide assembly, including first flow guide structure, second flow guide structure, third flow guide structure, fourth flow guide structure, fifth flow guide structure and sixth flow guide structure, the upper part of first flow guide structure is installed on the inner wall of the front side of air bellow assembly, second flow guide structure is installed between air bellow assembly and fume collecting hood body, for guiding oil and water on the inner wall of air bellow assembly to the rear part of main fume collecting cavity, the lower part of first flow guide structure is connected with second flow guide structure, and third flow guide structure is installed in main fume collecting cavity.

Description

TECHNICAL FIELD

[0001] The present application relates to the kitchen electrical technology field, and particularly relates to a range hood. BACKGROUND

[0002] The internal oil circuit of the existing wall-embedded range hood is not reasonable in layout, the structure is redundant, and the range hood is prone to oil and water leakage and other problems, which frequently affect the user experience.

[0003] Therefore, there is an urgent need for a range hood to solve the above problems. SUMMARY

[0004] The present application aims to at least solve one of the problems existing in the prior art, and for this purpose, the present application provides a range hood, which is provided with a flow guide assembly to smoothly guide the oil and water on the flap assembly and the bellows assembly into the main smoke collecting cavity, thereby avoiding oil and water leakage of the range hood.

[0005] The above-mentioned purpose is achieved by the following technical solutions:

[0006] A range hood, comprising:

[0007] A smoke collecting hood comprising a smoke collecting hood body, a main smoke collecting cavity with a main air inlet on the front side is formed in the smoke collecting hood body, and a main air outlet is arranged on the upper side of the main smoke collecting cavity;

[0008] A flap assembly, the upper end of which is movably connected to the smoke collecting hood body, and the flap assembly can swing relative to the smoke collecting hood body to close and open the main air inlet;

[0009] A bellows assembly, which is installed on the upper side of the smoke collecting hood body and communicates with the main air outlet;

[0010] The flow guide assembly comprises a first flow guide structure, a second flow guide structure, a third flow guide structure, a fourth flow guide structure, a fifth flow guide structure and a sixth flow guide structure. The upper portion of the first flow guide structure is mounted on the inner wall of the front side of the wind box assembly. The second flow guide structure is mounted between the wind box assembly and the smoke hood body, for guiding the oil and water on the inner wall of the wind box assembly to the rear of the main smoke collecting cavity. The lower portion of the first flow guide structure is connected with the second flow guide structure. The third flow guide structure is mounted in the main smoke collecting cavity, for guiding the oil and water on the rear side of the flap assembly into the main smoke collecting cavity. The fourth flow guide structure is mounted on the rear side of the flap assembly, for guiding the oil and water on the flap assembly into the third flow guide structure. The fifth flow guide structure is mounted in the smoke hood body below the second flow guide structure, for guiding the oil and water flowing out of the second flow guide structure to the inner wall of the smoke hood body. The sixth flow guide structure is mounted in the main smoke collecting cavity, and an oil passing channel is formed between the rear side of the sixth flow guide structure and the smoke hood body.

[0011] Optionally, the wind box assembly comprises a wind box enclosure and a flow guide bottom plate arranged on the lower side of the front portion of the wind box enclosure. The wind box enclosure and the flow guide bottom plate form a wind cavity. The flow guide bottom plate is arranged to be inclined downward from front to rear. The bottom portions of the wind box enclosure and the flow guide bottom plate are mounted on the upper side of the smoke hood body. The first flow guide structure comprises a first flow guide portion, a flow guide flange and a first mounting portion connected with each other. The first flow guide portion is attached to the inner side wall of the lower portion of the flow guide bottom plate. The flow guide flange is arranged on the upper portion of the first flow guide portion and is inclined from the middle to the left two ends towards the second flow guide structure. The bottom portion of the first flow guide portion is located above the second flow guide structure. The first mounting portion is mounted on the flow guide bottom plate and / or the second flow guide structure.

[0012] Optionally, the second flow guide structure is located below the first flow guide structure. An upwardly open first oil receiving groove is formed on the second flow guide structure. The first oil receiving groove is arranged to be inclined downward from front to rear. A first oil outlet hole is formed on the rear side of the first oil receiving groove.

[0013] Optionally, the third flow guide structure comprises a cross beam body. An upwardly open second oil receiving groove is formed on the cross beam body. A second oil outlet hole is formed on the groove bottom of the second oil receiving groove. A second flow guide portion is arranged on the lower side of the cross beam body. The second flow guide portion is arranged to be inclined downward from front to rear.

[0014] Optionally, a third oil outlet hole is formed on the left end and / or the right end of the second oil receiving groove. The second oil outlet hole and the third oil outlet hole are in communication with the oil passing channel.

[0015] Optionally, the flap assembly comprises a panel body, a back cover plate arranged at the back side of the panel body, and a lower side plate arranged at the lower side of the back cover plate, a cavity is enclosed among the panel body, the back cover plate and the lower side plate, an auxiliary air inlet is arranged on the lower side plate and communicates with the cavity, a back side of the back cover plate is provided with an auxiliary air outlet which communicates with the cavity, when the flap assembly is in a state of closing the main air inlet, the lower side plate is arranged to be inclined upward from front to back, and the lowest point of the lower side plate is located above the third flow guide structure, when the flap assembly is in a state of opening the main air inlet, the lower side plate is arranged to be inclined downward from front to back, and the lowest point of the lower side plate is located above the third flow guide structure.

[0016] Optionally, the fourth flow guide structure comprises:

[0017] A first flow guide plate is installed at the back side of the back cover plate.

[0018] A second flow guide plate is arranged at the lower side of the first flow guide plate and connected or abuts with the back end of the lower side plate, when the flap assembly is in a state of opening the main air inlet of the range hood, the second flow guide plate is arranged to be inclined downward from front to back, and the inclination angle of the second flow guide plate is greater than that of the lower side plate, the lowest point of the second flow guide plate is lower than that of the lower side plate, and the lowest point of the second flow guide plate is located in the main smoke collecting cavity.

[0019] Optionally, a third flow guide plate is further arranged between the first flow guide plate and the second flow guide plate, the third flow guide plate is arranged at the lower side of the lower side plate, a fourth oil outlet is arranged at the connection between the first flow guide plate and the third flow guide plate, when the flap assembly is in a state of opening the main air inlet, the vertical projection of the fourth oil outlet is located on the second flow guide plate.

[0020] Optionally, the front end of the lower side plate is further provided with a flow guide protruding part which protrudes downward, when the flap assembly is in a state of closing the main air inlet, the flow guide protruding part is arranged to be inclined upward from front to back, the inclination angle of the flow guide protruding part is greater than that of the lower side plate, and the lowest point of the flow guide protruding part is located in the main smoke collecting cavity.

[0021] Optionally, a cover plate is further arranged in the cavity, the cover plate is connected with the inner side of the lower side plate and covers above the auxiliary air inlet, an auxiliary smoke collecting cavity is formed between the cover plate and the lower side plate, and the auxiliary smoke collecting cavity is arranged to communicate with the auxiliary air inlet and the auxiliary air outlet.

[0022] Optionally, the cover plate comprises:

[0023] A cover plate body is installed on the inner side of the lower side plate and covers the auxiliary air inlet;

[0024] A third flow guide part is arranged on the rear side of the cover plate body and extends from the upper side of the auxiliary air outlet into the main smoke collecting cavity, and the third flow guide part is arranged downwardly from top to bottom.

[0025] Optionally, the fifth flow guide structure comprises:

[0026] A second mounting part is installed on the inner side wall of the smoke collecting cover body;

[0027] A fourth flow guide part is installed on the second mounting part and located below the first oil outlet hole of the second flow guide structure, and the fourth flow guide part is arranged downwardly from front to back.

[0028] Optionally, a blocking part is further arranged on the left side and the right side of the fourth flow guide part, and a liquid guiding gap is arranged between the blocking part and the lower end of the fourth flow guide part.

[0029] Optionally, the sixth flow guide structure comprises:

[0030] A fourth flow guide plate is arranged at the lower end of the main air inlet, the upper end of the fourth flow guide plate is arranged upwardly from front to back and extends below the rear end of the main air outlet, and the main air outlet is arranged above the middle part of the fourth flow guide plate;

[0031] A fifth flow guide plate is arranged at the left end of the fourth flow guide plate, the front end of the fifth flow guide plate is connected with the left end of the main air inlet, the rear end of the fifth flow guide plate is arranged from front to back and extends towards the rear end of the main air outlet, and the fifth flow guide plate is arranged from left to right and extends towards the middle part of the fourth flow guide plate, and / or a fifth flow guide plate is arranged at the right end of the fourth flow guide plate, the front end of the fifth flow guide plate is connected with the right end of the main air inlet, and the rear end of the fifth flow guide plate is arranged from front to back and extends towards the rear end of the main air outlet, and the fifth flow guide plate is arranged from right to left and extends towards the middle part of the fourth flow guide plate.

[0032] Optionally, a protruding pressing type is arranged in the middle part of the fourth flow guide plate and protrudes forwardly, the rear side of the pressing type forms a containing cavity for arranging a driving structure of the turning plate assembly, the rear end of the fourth flow guide plate is provided with a fifth flow guide part, and the fifth flow guide part is arranged downwardly from front to back and located below the rear end of the second flow guide structure.

[0033] Optionally, an oil cup is further included, the fume hood body comprises a fume hood enclosure and a fume hood bottom plate arranged at the bottom side of the fume hood enclosure, an oil blocking turn-up is arranged on the front side of the fume hood bottom plate and extends upwards, the oil cup is arranged on the lower side of the fume hood bottom plate, and a fifth oil outlet hole is arranged on the fume hood bottom plate and communicates with the oil cup.

[0034] Compared with the prior art, the present application has at least the following beneficial effects:

[0035] The oil smoke extractor provided by the present application can smoothly guide the oil and water on the flap assembly and the bellows assembly into the main fume collecting cavity through the flow guide assembly, thereby avoiding oil and water leakage of the oil smoke extractor. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a perspective structural schematic view of the oil smoke extractor provided by the embodiment of the present application (the flap assembly is in the state of opening the main air inlet);

[0037] Figure 2 is an exploded view of Figure 1 ;

[0038] Figure 3 is a right view of Figure 1 ;

[0039] Figure 4 is a sectional view of A-A in Figure 3 ;

[0040] Figure 5 is a perspective structural schematic view of the first flow guide structure of the oil smoke extractor provided by the embodiment of the present application;

[0041] Figure 6 is a top view of Figure 1 ;

[0042] Figure 7 is a sectional view of B-B in Figure 6 ;

[0043] Figure 8 is an enlarged view of G2 in Figure 7 ;

[0044] Figure 9 is a sectional view of D-D in Figure 6 ;

[0045] Figure 10 is a sectional view of C-C in Figure 6 ;

[0046] Figure 11 is a top view of the oil smoke extractor provided by the embodiment of the present application (the flap assembly is in the state of closing the main air inlet);

[0047] Figure 12 is Figure 11 a sectional view at E-E in FIG. 1;

[0048] Figure 13 is Figure 12 an enlarged view of G3 in FIG. 1;

[0049] Figure 14 is Figure 12 an enlarged view of G4 in FIG. 1;

[0050] Figure 15 is a perspective structural schematic view of a third flow guide structure of a range hood provided by an embodiment of the present application;

[0051] Figure 16 is Figure 15 a right view of FIG. 1;

[0052] Figure 17 is a perspective assembly schematic view of a smoke collecting cover, a third flow guide structure, a sixth flow guide structure and a driving structure of a range hood provided by an embodiment of the present application;

[0053] Figure 18 is Figure 17 an enlarged view of G1 in FIG. 1;

[0054] Figure 19 is Figure 17 a top view of FIG. 1;

[0055] Figure 20 is Figure 19 a sectional view at F-F in FIG. 1;

[0056] Figure 21 is a perspective structural schematic view of a fourth flow guide structure of a range hood provided by an embodiment of the present application;

[0057] Figure 22 is a perspective structural schematic view of a fifth flow guide structure of a range hood provided by an embodiment of the present application.

[0058] in the figure:

[0059] 1, flow guide assembly;

[0060] 11, first flow guide structure; 111, first flow guide part; 112, flow guide flange; 113, first mounting part;

[0061] 12, second flow guide structure; 121, first oil receiving groove; 120, first oil outlet hole;

[0062] 13, third flow guide structure; 130, second oil receiving groove; 131, cross beam body; 1311, sixth flow guide part; 132, second oil outlet hole; 133, third oil outlet hole; 134, second flow guide part;

[0063] 14. Fourth flow guide structure; 141. First flow guide plate; 142. Third flow guide plate; 143. Second flow guide plate; 140. Fourth oil outlet hole;

[0064] 15. Fifth flow guide structure; 151. Second mounting portion; 152. Fourth flow guide portion; 153. Blocking portion; 150. Liquid guide gap;

[0065] 16. Sixth flow guide structure; 161. Fourth flow guide plate; 1611. Profile; 1612. Fifth flow guide portion; 1610. Containing cavity; 162. Fifth flow guide plate;

[0066] 2. Fume hood; 21. Fume hood body; 211. Fifth oil outlet hole; 212. Oil blocking flange; 213. Fume hood coaming; 2131. First raised liquid guide portion; 214. Fume hood bottom plate; 20. Main air inlet; 200. Main fume collecting cavity; 101. Main air outlet; 100. Oil passing channel;

[0067] 3. Turnplate assembly; 31. Panel body; 32. Rear cover plate; 321. Second raised liquid guide portion; 33. Lower side plate; 331. Flow guide raised portion; 34. Cover plate; 341. Cover plate body; 342. Third flow guide portion; 35. Driving structure; 301. Auxiliary air inlet; 302. Auxiliary air outlet; 30. Cavity; 300. Auxiliary fume collecting cavity;

[0068] 4. Bellow assembly; 41. Bellow coaming; 42. Flow guide bottom plate; 43. Fan;

[0069] 5. Oil cup;

[0070] 6. Control panel;

[0071] 7. Illumination lamp. DETAILED DESCRIPTION

[0072] The following examples are used to illustrate the present application, but the present application is not limited by these examples. Modifications to the specific embodiments of the present application or equivalent substitutions of some technical features are possible without departing from the spirit of the present application, and they should be covered in the technical solution range of the present application.

[0073] Reference should be made to Figures 1-22The oil fume extractor provided by the application comprises a smoke collecting hood 2, a flap assembly 3, a wind box assembly 4 and a flow guide assembly 1. The smoke collecting hood 2 comprises a smoke collecting hood body 21, a main smoke collecting cavity 200 with a main air inlet 20 at the front side is formed in the smoke collecting hood body 21, and a main air outlet 101 is arranged at the upper side of the main smoke collecting cavity 200. The upper end of the flap assembly 3 is movably connected with the smoke collecting hood body 21, and the flap assembly 3 can swing relative to the smoke collecting hood body 21 to close and open the main air inlet 20. The wind box assembly 4 is installed at the upper side of the smoke collecting hood body 21 and communicates with the main air outlet 101. The flow guide assembly 1 comprises a first flow guide structure 11, a second flow guide structure 12, a third flow guide structure 13, a fourth flow guide structure 14, a fifth flow guide structure 15 and a sixth flow guide structure 16. The upper part of the first flow guide structure 11 is installed on the inner wall of the front side of the wind box assembly 4, the second flow guide structure 12 is installed between the wind box assembly 4 and the smoke collecting hood body 21 and is used for guiding the oil and water on the inner wall of the wind box assembly 4 to the rear part of the main smoke collecting cavity 200, the lower part of the first flow guide structure 11 is connected with the second flow guide structure 12, the third flow guide structure 13 is installed in the main smoke collecting cavity 200 and is used for guiding the oil and water on the rear side of the flap assembly 3 into the main smoke collecting cavity 200, the fourth flow guide structure 14 is installed on the rear side of the flap assembly 3 and is used for guiding the oil and water on the flap assembly 3 into the third flow guide structure 13, the fifth flow guide structure 15 is installed in the smoke collecting hood body 21 and is located below the second flow guide structure 12 and is used for guiding the oil and water flowing out of the second flow guide structure 12 to the inner wall of the smoke collecting hood body 21, and the sixth flow guide structure 16 is installed in the main smoke collecting cavity 200 and an oil passing channel 100 is formed between the rear side of the sixth flow guide structure 16 and the smoke collecting hood body 21.

[0074] The oil fume extractor provided by the application has the effect of avoiding oil and water leakage of the oil fume extractor by arranging the flow guide assembly 1 to smoothly guide the oil and water on the flap assembly 3 and the wind box assembly 4 into the main smoke collecting cavity 200.

[0075] Optionally, the oil fume extractor further comprises an oil cup 5, the smoke collecting hood body 21 comprises a smoke collecting hood surrounding plate 213 and a smoke collecting hood bottom plate 214 arranged at the bottom side of the smoke collecting hood surrounding plate 213, the oil cup 5 is installed at the lower side of the smoke collecting hood bottom plate 214, and the fifth oil outlet hole 211 communicating with the oil cup 5 is arranged on the smoke collecting hood bottom plate 214.

[0076] Optionally, the front side of the smoke collecting hood bottom plate 214 is provided with an oil blocking flange 212 extending upwards to prevent the oil and water on the smoke collecting hood bottom plate 214 from flowing out through the main air inlet 20.

[0077] Optionally, the wind box assembly 4 comprises a wind box enclosure 41 and a guide bottom plate 42 arranged at the lower side of the front of the wind box enclosure 41, the wind box enclosure 41 and the guide bottom plate 42 form a wind cavity, the guide bottom plate 42 is arranged from front to back and downwardly inclined, the wind box enclosure 41 and the bottom of the guide bottom plate 42 are both mounted on the upper side of the smoke hood body 21, the first guide structure 11 comprises a first guide part 111, a guide flange 112 and a first mounting part 113 connected with each other, the first guide part 111 is attached to the inner side wall of the lower part of the guide bottom plate 42, the guide flange 112 is arranged on the upper part of the first guide part 111 and is arranged from the middle to the left two ends and inclined to the direction close to the second guide structure 12, the bottom of the first guide part 111 is above the second guide structure 12, and the first mounting part 113 is mounted on the guide bottom plate 42 and / or the second guide structure 12. Specifically, the oil and water on the front side of the wind box enclosure 41 can flow smoothly to the first guide structure 11 through the guide bottom plate 42, and then flow to the left end and the right end of the second guide structure 12 along the guide flange 112, and fall into the second guide structure 12.

[0078] Specifically, the oil and water on the guide bottom plate 42 flow along Figure 4 the direction indicated by the arrow H1 to the left end and the right end of the second guide structure 12.

[0079] Optionally, the second guide structure 12 is below the first guide structure 11, the second guide structure 12 is provided with a first oil receiving groove 121 with an opening upward, the first oil receiving groove 121 is arranged from front to back and downwardly inclined, and the rear side of the first oil receiving groove 121 is provided with a first oil outlet hole 120. The first oil receiving groove 121 is used to receive the oil and water flowing down from the first guide structure 11, receive the oil and water flowing down from the left side, the right side and the rear side of the wind box enclosure 41, and also receive the oil and water flowing down from the fan 43 installed in the wind cavity. By arranging the first oil receiving groove 121 from front to back and downwardly inclined, the oil and water in the first oil receiving groove 121 can flow to the rear end of the first oil receiving groove 121, then flow out to the rear wall of the main smoke collecting cavity 200 through the first oil outlet hole 120 arranged at the rear side of the first oil receiving groove 121, then flow down along the rear wall of the smoke collecting cavity to the bottom of the main smoke collecting cavity 200, and then flow into the oil cup 5 installed on the lower side of the smoke collecting cavity.

[0080] Specifically, the oil and water in the first oil receiving groove 121 flow along Figure 7 the direction indicated by the arrow H0.

[0081] Optionally, the third flow guide structure 13 comprises a beam body 131, and a second oil receiving groove 130 is formed in the beam body 131 and faces upward, and a second oil outlet hole 132 is formed in the groove bottom of the second oil receiving groove 130, and a second flow guide portion 134 is arranged on the lower side of the beam body 131 and is arranged downward from front to back, so as to guide the oil and water on the front side of the beam body 131 to the rear side and then drop into the main smoke collecting cavity 200, thereby avoiding the oil and water from dropping on the front side of the beam body 131 and then being bounced out of the range hood, and thus avoiding the oil dripping phenomenon of the range hood, and improving the user experience.

[0082] Optionally, third oil outlet holes 133 are formed in the left end and / or the right end of the second oil receiving groove 130, so as to avoid the oil and water in the second oil receiving groove 130 from accumulating and deviating to one side due to the non-parallel installation of the range hood, and then seeping from the end face of the beam body 131 to the side wall of the main smoke collecting cavity 200, and thus avoiding the oil leakage problem of the range hood. The second oil outlet hole 132 and the third oil outlet hole 133 are both in communication with the oil passing channel 100, so that the oil and water dropped from the second oil receiving groove 130 can fall into the oil passing channel 100, and the sixth flow guide structure 16 guides the dropped oil and water, and thus avoids the oil and water from splashing out of the range hood from the main smoke collecting cavity 200.

[0083] Optionally, the top end of the front side plate of the beam body 131 is provided with a sixth flow guide portion 1311 which extends toward the rear end of the beam body 131 and is arranged downward from front to back, and the rear end of the sixth flow guide portion 1311 is located in the second oil receiving groove 130. The sixth flow guide portion 1311 is used for guiding the oil and water dropped from the flap assembly 3 of the range hood, so that the oil and water can smoothly fall into the second oil receiving groove 130.

[0084] Optionally, the second oil outlet hole 132 is arranged in the middle part of the second oil receiving groove 130, so as to quickly drain the oil and water in the middle part of the second oil receiving groove 130 to the bottom of the main smoke collecting cavity 200.

[0085] Optionally, a first mounting hole is arranged in the middle part of the second oil receiving groove 130, so as to mount and fix the middle part of the beam body 131 on the sixth flow guide structure 16, and a second mounting hole is arranged at each end of the beam body 131, so as to mount and fix the two ends of the beam body 131 on the inner side wall of the smoke collecting hood body 21, thereby realizing the stable installation of the beam body 131 in the main smoke collecting cavity 200.

[0086] Optionally, the flap assembly 3 comprises a panel body 31, a back cover plate 32 arranged at the back side of the panel body 31, and a lower side plate 33 arranged at the lower side of the back cover plate 32, a cavity 30 is enclosed among the panel body 31, the back cover plate 32 and the lower side plate 33, the lower side plate 33 is provided with an auxiliary air inlet 301 communicating with the cavity 30, the back side of the back cover plate 32 is provided with an auxiliary air outlet 302 communicating with the cavity 30, when the flap assembly 3 is in a state of closing the main air inlet 20, the lower side plate 33 is inclined upward from front to back, and the lowest point of the lower side plate 33 is located above the second oil collecting groove 130, so that the oil and water on the lower side plate 33 can drip into the second oil collecting groove 130, when the flap assembly 3 is in a state of opening the main air inlet 20, the lower side plate 33 is inclined downward from front to back, and the lowest point of the lower side plate 33 is located above the second oil collecting groove 130, so that the oil and water on the lower side plate 33 and the back cover plate 32 can drip into the second oil collecting groove 130.

[0087] Optionally, the fourth flow guide structure 14 comprises a first flow guide plate 141 and a second flow guide plate 143. The first flow guide plate 141 is installed at the back side of the back cover plate 32. The second flow guide plate 143 is arranged at the lower side of the first flow guide plate 141 and connected or abuts with the back end of the lower side plate 33, when the flap assembly 3 is in a state of opening the main air inlet 20 of the range hood, the second flow guide plate 143 is inclined downward from front to back, and the inclination angle of the second flow guide plate 143 is greater than that of the lower side plate 33, the lowest point of the second flow guide plate 143 is lower than that of the lower side plate 33, and the lowest point of the second flow guide plate 143 is located in the main smoke collecting cavity 200, so that the oil and water on the lower side plate 33 can quickly flow to the second flow guide plate 143, and then drip into the second oil collecting groove 130 through the lowest point of the second flow guide plate 143.

[0088] Optionally, a third flow guide plate 142 is further arranged between the first flow guide plate 141 and the second flow guide plate 143, and the third flow guide plate 142 is arranged at the lower side of the lower side plate 33, so that the third flow guide plate 142 closely abuts on the lower side of the lower side plate 33, thereby enabling the oil and water on the lower side plate 33 to smoothly flow to the third flow guide plate 142, and then flow to the second oil collecting groove 130 through the second flow guide plate 143. A fourth oil outlet hole 140 is arranged at the connection between the first flow guide plate 141 and the third flow guide plate 142, when the flap assembly 3 is in a state of opening the main air inlet 20, the vertical projection of the fourth oil outlet hole 140 is located on the second flow guide plate 143, so that the oil and water on the back side of the back cover plate 32 and the oil and water on the first flow guide plate 141 can flow to the second flow guide plate 143 through the fourth oil outlet hole 140, and then flow to the second oil collecting groove 130 through the second flow guide plate 143.

[0089] Specifically, when the flap assembly 3 is in a state of opening the main air inlet 20, the oil and water on the rear side of the rear cover plate 32 flows along the direction of arrow H6 into the second oil receiving groove 130, and the oil and water on the lower side plate 33 flows along the direction of arrow H7 into the second oil receiving groove 130. Figure 8 Specifically, when the flap assembly 3 is in a state of opening the main air inlet 20, the oil and water on the rear side of the rear cover plate 32 flows along the direction of arrow H6 into the second oil receiving groove 130, and the oil and water on the lower side plate 33 flows along the direction of arrow H7 into the second oil receiving groove 130. Figure 8 Specifically, when the flap assembly 3 is in a state of opening the main air inlet 20, the oil and water on the rear side of the rear cover plate 32 flows along the direction of arrow H6 into the second oil receiving groove 130, and the oil and water on the lower side plate 33 flows along the direction of arrow H7 into the second oil receiving groove 130.

[0090] Optionally, the first flow guide plate 141, the second flow guide plate 143 and the third flow guide plate 142 are integrally formed to ensure the strength of the fourth flow guide structure 14, and at the same time, the oil and water can smoothly flow to the second flow guide plate 143, avoiding the oil and water from dripping outside the range hood through the gap between the first flow guide plate 141 and the third flow guide plate 142 or the gap between the third flow guide plate 142 and the second flow guide plate 143, thereby causing the range hood to leak oil.

[0091] Optionally, the front end of the lower side plate 33 is further provided with a downwardly protruding flow guide protruding portion 331, when the flap assembly 3 is in a state of closing the main air inlet 20, the flow guide protruding portion 331 is inclined upwardly from front to back, the inclination angle of the flow guide protruding portion 331 is greater than the inclination angle of the lower side plate 33, and the lowest point of the flow guide protruding portion 331 is located in the main smoke collecting cavity 200 and above the second oil receiving groove 130, so that when the flap assembly 3 is in a state of closing the main air inlet 20, the oil and water can flow from back to front on the lower side plate 33 to the flow guide protruding portion 331, and then drip through the lowest point of the flow guide protruding portion 331 into the second oil receiving groove 130.

[0092] Specifically, when the flap assembly 3 is in a state of opening the main air inlet 20, the oil and water on the rear side of the rear cover plate 32 flows along the direction of arrow H6 into the second oil receiving groove 130, and the oil and water on the lower side plate 33 flows along the direction of arrow H7 into the second oil receiving groove 130. Figure 13 Specifically, when the flap assembly 3 is in a state of opening the main air inlet 20, the oil and water on the rear side of the rear cover plate 32 flows along the direction of arrow H6 into the second oil receiving groove 130, and the oil and water on the lower side plate 33 flows along the direction of arrow H7 into the second oil receiving groove 130.

[0093] Optionally, the rear side of the rear cover plate 32 is further provided with a second protruding liquid guide portion 321, which is inclined from lower to upper, so that the oil and water on the rear side of the rear cover plate 32 can gradually flow onto the smoke collecting first flow guide plate 141 along the second protruding liquid guide portion 321.

[0094] Specifically, the oil and water on the rear side of the rear cover plate 32 flows along the direction of arrow H2. Figure 9 Specifically, the oil and water on the rear side of the rear cover plate 32 flows along the direction of arrow H2.

[0095] Optionally, the cover plate 34 is further included, which is arranged in the cavity 30 and connected with the inner side of the lower side plate 33 and covers the auxiliary air inlet 301, and the auxiliary smoke collection cavity 300 is formed between the cover plate 34 and the lower side plate 33, and the auxiliary smoke collection cavity 300 is in communication with the auxiliary air inlet 301 and the auxiliary air outlet 302. The auxiliary air inlet 301 is arranged higher than the main air inlet 20, most of the oil fume enters the main smoke collection cavity 200 from the main air inlet 20, part of the oil fume rises to the auxiliary air inlet 301 along the panel body 31, and then flows into the main smoke collection cavity 200 through the auxiliary smoke collection cavity 300 and the auxiliary air outlet 302, and then flows out from the main air outlet 101 to the building flue together with the oil fume entering the main smoke collection cavity 200 through the main air inlet 20. By arranging the main air inlet and the auxiliary air inlet, on the one hand, the smoke suction effect can be improved and the oil fume escape can be reduced, and on the other hand, the fan 43 speed can be reduced due to the increase of the air inlet area, so that the noise reduction effect can be achieved.

[0096] Optionally, the auxiliary air inlet 301 is provided with two auxiliary air inlets 301, one auxiliary air inlet 301 is arranged on the left side of the lower side plate 33, and the other auxiliary air inlet 301 is arranged on the right side of the lower side plate 33, so as to increase the air inlet area by arranging two auxiliary air inlets 301.

[0097] Optionally, the lighting lamp 7 and the control panel 6 are further included, the lighting lamp 7 is installed on the lower side plate 33 and located between the two auxiliary air inlets 301, so that the two auxiliary air inlets 301 can be arranged correspondingly to the two stove heads arranged below the range hood, so as to improve the smoke suction effect. The control panel 6 is arranged in the cavity 30 and connected with the rear side of the panel, and the control panel 6 is arranged in the cavity 30, so that the control panel 6 can avoid the flow path of the oil fume and prevent the oil and water from entering the control panel 6 to affect the control panel 6.

[0098] Optionally, the cover plate 34 includes the cover plate 34 body and the third flow guide part 342. The cover plate 34 body is installed on the inner side of the lower side plate 33 and covers the auxiliary air inlet 301. The third flow guide part 342 is arranged on the rear side of the cover plate 34 body and extends from the upper side of the auxiliary air outlet 302 to the main smoke collection cavity 200, and the third flow guide part 342 is arranged from top to bottom and inclined downward. On the one hand, the oil fume can flow quickly into the main smoke collection cavity 200 along the third flow guide part 342, on the other hand, the oil and water adhered to the cover plate 34 body and the third flow guide part 342 can also flow into the main smoke collection cavity 200, so as to avoid the oil and water from being exposed and causing the range hood to leak oil, and on the other hand, part of the oil and water on the rear side of the rear cover plate 32 can also drip into the second oil collection groove 130 through the third flow guide part 342.

[0099] Specifically, the oil and water on the lower side of the cover plate 34 body and the lower side of the third flow guide part 342 flows along the third flow guide part 342 and then flows into the main smoke collection cavity 200. Figure 8The oil-water flows in the direction indicated by the middle arrow H5 into the second oil receiving groove 130. The oil-water on the rear side of the rear cover plate 32 flows along the Figure 8 The oil-water flows in the direction indicated by the middle arrow H3 onto the upper side of the third flow guide part 342, and then flows along the Figure 8 The oil-water flows in the direction indicated by the middle arrow H4 into the second oil receiving groove 130.

[0100] Optionally, the fifth flow guide structure 15 comprises a second mounting part 151 and a fourth flow guide part 152. The second mounting part 151 is mounted on the inner side wall of the rear side of the smoke hood enclosing plate 213. The fourth flow guide part 152 is mounted on the second mounting part 151 and is located below the first oil outlet hole 120 of the second flow guide structure 12. The fourth flow guide part 152 is inclined downward from front to rear, so as to receive the oil-water flowing out of the first oil outlet hole 120, so that the oil-water in the second flow guide structure 12 can flow onto the inner side wall of the smoke hood body 21 via the fourth flow guide part 152, and then flow along the inner side wall of the smoke hood body 21 to the bottom of the smoke hood body 21, and then flow out into the oil cup 5, thereby solving the problem in the prior art that when the oil-water in the second flow guide structure 12 flows out of the first oil outlet hole 120, due to the large amount of oil-water, the oil-water splashes on the inner side wall of the smoke hood body 21, and then splashes out of the main smoke collecting cavity 200 to the outside of the range hood, or due to the small amount of oil-water, the oil-water flows back along the bottom side of the second flow guide structure 12, and then drips onto the sixth flow guide structure 16 arranged below the second flow guide structure 12, and splashes out of the main smoke collecting cavity 200 to the outside of the range hood.

[0101] Specifically, when the amount of oil-water is large, the oil-water flows along Figure 14 the direction indicated by the middle arrow H9 splashes onto the fourth flow guide part 152; and when the amount of oil-water is small, the oil-water drips along Figure 9 the direction indicated by the middle arrow H10 onto the fourth flow guide part 152.

[0102] Optionally, a blocking part 153 is arranged on the left side and the right side of the fourth flow guide part 152, so as to avoid the oil-water dripping onto the fourth flow guide part 152 from splashing out of the left side and / or the right side of the fourth flow guide part 152, and to achieve the oil blocking effect. The blocking part 153 and the lower end of the fourth flow guide part 152 have a liquid guiding gap 150, so that the oil-water on the fourth flow guide part 152 can flow out onto the inner side wall of the smoke hood body 21 via the liquid guiding gap 150 on the left side and / or the right side of the fourth flow guide part 152.

[0103] Optionally, the second mounting part 151, the fourth flow guide part 152, and the blocking part 153 are integrally formed, which can not only ensure the strength of the fifth flow guide structure 15, but also avoid the overflow of the oil-water via the gap between the fourth flow guide part 152 and the blocking part 153, or via the gap between the second mounting part 151 and the fourth flow guide part 152.

[0104] Optionally, the inner wall of the rear side of the fume hood enclosure coaming 213 is further provided with a first protruding liquid guide part 2131 protruding towards the center of the main fume collecting cavity 200, the first protruding liquid guide part 2131 is arranged below the fifth flow guide structure 15 and is inclined from bottom to top, so that the oil and water flowing out of the liquid guide gap 150 can gradually flow onto the fume hood bottom plate 214 along the first protruding liquid guide part 2131.

[0105] Optionally, the first protruding liquid guide part 2131 is provided with at least two, and the two first protruding liquid guide parts 2131 are arranged in a spaced manner to ensure the flow guiding effect.

[0106] Specifically, the oil and water flowing out of the liquid guide gap 150 flows onto the fume hood bottom plate 214 along the direction indicated by arrow H8. Figure 10

[0107] Optionally, the sixth flow guide structure 16 includes a fourth flow guide plate 161 and a fifth flow guide plate 162. The lower end of the fourth flow guide plate 161 is arranged at the lower end of the main air inlet 20, the upper end of the fourth flow guide plate 161 is inclined from front to back upwards and extends to below the rear end of the main air outlet 101, and the main air outlet 101 is arranged above the middle part of the fourth flow guide plate 161. The left end of the fourth flow guide plate 161 is provided with the fifth flow guide plate 162, the front end of the fifth flow guide plate 162 is connected with the left end of the main air inlet 20, and the rear end of the fifth flow guide plate 162 is arranged from front to back in a direction close to the rear end of the main air outlet 101, and is arranged from left to right in a direction close to the middle part of the fourth flow guide plate 161, and / or the right end of the fourth flow guide plate 161 is provided with the fifth flow guide plate 162, the front end of the fifth flow guide plate 162 is connected with the right end of the main air inlet 20, and the rear end of the fifth flow guide plate 162 is arranged from front to back in a direction close to the rear end of the main air outlet 101, and is arranged from right to left in a direction close to the middle part of the fourth flow guide plate 161. The fourth flow guide plate 161 can guide most of the oil fume below the extractor hood to the main air outlet 101, and the fifth flow guide plate 162 can guide the oil fume on the left side and / or the right side of the extractor hood to the main air outlet 101, reducing the escape of oil fume, and at the same time, the oil and water adhering to the fourth flow guide plate 161 and the fifth flow guide plate 162 can also flow onto the fume hood bottom plate 214 along the inclined fourth flow guide plate 161 and the fifth flow guide plate 162.

[0108] ​Optionally, the fourth baffle 161 is further provided with a protrusion 1611 protruding forward in the middle part, and the rear side of the protrusion 1611 is formed with a receiving cavity 1610 for accommodating the driving structure 35 of the flap assembly 3. The output end of the driving structure 35 extends into the cavity 30 and is connected with the panel body 31 to drive the panel assembly to swing, close and open the main air inlet 20. In this way, the fourth baffle 161 also has the effect of blocking most of the oil fume for the driving structure 35, reducing the probability of oil fume entering the driving structure 35 and causing the driving structure 35 to malfunction.

[0109] Specifically, the driving structure 35 includes a driving motor and a transmission arm. The driving motor is installed in the receiving cavity 1610 and is mounted on the protrusion 1611 by screws. One end of the transmission arm is connected with the output end of the driving motor, and the other end extends into the cavity 30 and is connected with the panel body 31.

[0110] Optionally, the middle part of the cross beam body 131 is mounted on the upper end of the protrusion 1611.

[0111] Optionally, the rear end of the fourth baffle 161 is provided with a fifth baffle part 1612. The fifth baffle part 1612 is inclined downward from front to back and is located below the rear end of the second baffle structure 12. When the oil and water accumulated on the lower side of the second baffle structure 12, the oil and water on the lower side of the second baffle structure 12 can drop to the fifth baffle part 1612 and then flow along the fifth baffle part 1612 to the oil passing channel 100. Even if the oil and water on the lower side of the second baffle structure 12 splashes on the fifth baffle part 1612, the splashed oil and water will only splash on the smoke collecting hood surrounding plate 213, thereby avoiding the oil and water splashing out of the main smoke collecting cavity 200.

[0112] The above only describes some embodiments of the present application. Those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A range hood characterized by, The utility model relates to a kind of oil fume exhaust hoods, comprising: Smoke hood (2), including smoke hood body (21), the main smoke cavity (200) with main air inlet (20) in front side is formed in the smoke hood body (21), the upper side of the main smoke cavity (200) is provided with main air outlet (101); Flap assembly (3), its upper end is movably connected with the smoke hood body (21), the flap assembly (3) can swing relative to the smoke hood body (21) to close and open the main air inlet (20); Air bellow assembly (4) is installed in the upper side of the smoke hood body (21) and is communicated with the main air outlet (101); Flow guide assembly, including first flow guide structure (11), second flow guide structure (12), third flow guide structure (13), fourth flow guide structure (14), fifth flow guide structure (15) and sixth flow guide structure (16), the upper portion of the first flow guide structure (11) is installed on the inner wall of the front side of the air bellow assembly (4), the second flow guide structure (12) is installed between the air bellow assembly (4) and the smoke hood body (21), for the oil and water on the inner wall of the air bellow assembly (4) is guided to the rear portion of the main smoke cavity (200), the lower portion of the first flow guide structure (11) is connected with the second flow guide structure (12), the third flow guide structure (13) is installed in the main smoke cavity (200), for the oil and water in the rear side of the flap assembly (3) is guided to the main smoke cavity (200), the fourth flow guide structure (14) is installed in the rear side of the flap assembly (3), for the oil and water on the flap assembly (3) is guided to the third flow guide structure (13), the fifth flow guide structure (15) is installed in the smoke hood body (21) and is located below the second flow guide structure (12), for the oil and water that flows out in the second flow guide structure (12) is guided to the inner wall of the smoke hood body (21), the sixth flow guide structure (16) is installed in the main smoke cavity (200), and the rear side of the sixth flow guide structure (16) is formed between the smoke hood body (21) and over oil passage (100).

2. The hood according to claim 1, characterized in that, The wind box assembly (4) comprises a wind box enclosure (41) and a guide bottom plate (42) arranged at the lower side of the front part of the wind box enclosure (41), the wind box enclosure (41) and the guide bottom plate (42) form a wind cavity, the guide bottom plate (42) is arranged to be inclined downward from front to back, the bottom of the wind box enclosure (41) and the guide bottom plate (42) are installed on the upper side of the smoke collecting cover body (21), the first guide structure (11) comprises a first guide part (111), a guide flange (112) and a first mounting part (113) connected with each other, the first guide part (111) is attached to the inner side wall of the lower part of the guide bottom plate (42), the guide flange (112) is arranged on the upper part of the first guide part (111) and is arranged to be inclined from the middle to the left and right ends to the direction close to the second guide structure (12), the bottom of the first guide part (111) is located above the second guide structure (12), and the first mounting part (113) is mounted on the guide bottom plate (42) and / or the second guide structure (12).

3. The hood according to claim 1, characterized in that, The second guide structure (12) is located below the first guide structure (11), the first oil receiving groove (121) with the opening upward is arranged on the second guide structure (12), the first oil receiving groove (121) is arranged to be inclined downward from front to back, and the first oil outlet hole (120) is arranged at the rear side of the first oil receiving groove (121).

4. The hood according to claim 1, characterized in that, The third guide structure (13) comprises a cross beam body (131), the second oil receiving groove (130) with the opening upward is arranged on the cross beam body (131), the second oil outlet hole (132) is arranged on the groove bottom of the second oil receiving groove (130), and the second guide part (134) is arranged on the lower side of the cross beam body (131) and is arranged to be inclined downward from front to back.

5. The hood according to claim 4, characterized in that, The third oil outlet hole (133) is arranged at the left end and / or the right end of the second oil receiving groove (130), and the second oil outlet hole (132) and the third oil outlet hole (133) are in communication with the oil passing channel (100).

6. The hood according to claim 1, characterized in that, The turnover plate assembly (3) comprises a panel body (31), a back cover plate (32) arranged at the back side of the panel body (31), and an underside plate (33) arranged at the lower side of the back cover plate (32), a cavity (30) is enclosed among the panel body (31), the back cover plate (32) and the underside plate (33), an auxiliary air inlet (301) is arranged on the underside plate (33) and communicates with the cavity (30), an auxiliary air outlet (302) is arranged at the back side of the back cover plate (32) and communicates with the cavity (30), when the turnover plate assembly (3) is in a state of closing the main air inlet (20), the underside plate (33) is arranged to be inclined upward from front to back, and the lowest point of the underside plate (33) is located above the third flow guide structure (13), when the turnover plate assembly (3) is in a state of opening the main air inlet (20), the underside plate (33) is arranged to be inclined downward from front to back, and the lowest point of the underside plate (33) is located above the third flow guide structure (13).

7. The hood according to claim 6, characterized in that The fourth flow guide structure (14) comprises: A first flow guide plate (141) is installed at the back side of the back cover plate (32); A second flow guide plate (143) is arranged at the lower side of the first flow guide plate (141) and connected or abuts with the back end of the underside plate (33), when the turnover plate assembly (3) is in a state of opening the main air inlet (20) of the range hood, the second flow guide plate (143) is arranged to be inclined downward from front to back, and the inclination angle of the second flow guide plate (143) is greater than that of the underside plate (33), and the lowest point of the second flow guide plate (143) is lower than the underside plate (33), and the lowest point of the second flow guide plate (143) is located in the main smoke collecting cavity (200).

8. The hood according to claim 7, characterized in that A third flow guide plate (142) is arranged between the first flow guide plate (141) and the second flow guide plate (143), and the third flow guide plate (142) is arranged at the lower side of the underside plate (33), a fourth oil outlet hole (140) is arranged at the connection between the first flow guide plate (141) and the third flow guide plate (142), and when the turnover plate assembly (3) is in a state of opening the main air inlet (20), the vertical projection of the fourth oil outlet hole (140) is located on the second flow guide plate (143).

9. The hood according to claim 6, characterized in that, The front end of the underside plate (33) is further provided with a flow guide protruding portion (331) protruding downward, when the turnover plate assembly (3) is in a state of closing the main air inlet (20), the flow guide protruding portion (331) is arranged to be inclined upward from front to back, the inclination angle of the flow guide protruding portion (331) is greater than that of the underside plate (33), and the lowest point of the flow guide protruding portion (331) is located in the main smoke collecting cavity (200).

10. The hood according to claim 6, characterized in that, Further comprising a cover plate (34) arranged in the cavity (30), the cover plate (34) is connected with the inner side of the lower side plate (33) and covers the auxiliary air inlet (301), an auxiliary smoke collecting cavity (300) is formed between the cover plate (34) and the lower side plate (33), and the auxiliary smoke collecting cavity (300) is in communication with the auxiliary air inlet (301) and the auxiliary air outlet (302).

11. The hood according to claim 10, characterized in that The cover plate (34) comprises: a cover plate body (341) mounted on the inner side of the lower side plate (33) and covering the auxiliary air inlet (301); a third flow guide part (342) arranged on the rear side of the cover plate body (341) and extending from the upper side of the auxiliary air outlet (302) into the main smoke collecting cavity (200), and the third flow guide part (342) is arranged downwardly from top to bottom.

12. The hood according to claim 1, characterized in that, The fifth flow guide structure (15) comprises: a second mounting part (151) mounted on the inner side wall of the smoke hood body (21); a fourth flow guide part (152) mounted on the second mounting part (151) and located below the first oil outlet hole (120) of the second flow guide structure (12), and the fourth flow guide part (152) is arranged downwardly from front to back.

13. The hood according to claim 12, characterized in that, Further comprising a blocking part (153), one blocking part (153) is arranged on the left side and the right side of the fourth flow guide part (152), and a liquid guide gap (150) is formed between the blocking part (153) and the lower end of the fourth flow guide part (152).

14. The hood according to claim 1, characterized in that, The sixth flow guide structure (16) comprises: a fourth flow guide plate (161) with a lower end arranged at the lower end of the main air inlet (20), an upper end of the fourth flow guide plate (161) extending upwardly from front to back below the rear end of the main air outlet (101), and the main air outlet (101) is arranged above the middle part of the fourth flow guide plate (161); a fifth flow guide plate (162), the left end of the fourth flow guide plate (161) is provided with the fifth flow guide plate (162), the front end of the fifth flow guide plate (162) is connected with the left end of the main air inlet (20), the rear end of the fifth flow guide plate (162) extends from front to back towards the rear end of the main air outlet (101), and extends from left to right towards the middle part of the fourth flow guide plate (161), and / or the right end of the fourth flow guide plate (161) is provided with the fifth flow guide plate (162), the front end of the fifth flow guide plate (162) is connected with the right end of the main air inlet (20), and the rear end of the fifth flow guide plate (162) extends from front to back towards the rear end of the main air outlet (101), and extends from right to left towards the middle part of the fourth flow guide plate (161).

15. The hood according to claim 14, characterized in that, The fourth deflector (161) is further provided with a protrusion (1611) protruding forward in the middle part, the rear side of the protrusion (1611) forms a receiving cavity (1610) for arranging the driving structure (35) of the flap assembly (3), the rear end of the fourth deflector (161) is provided with a fifth deflection part (1612), the fifth deflection part (1612) is inclined downward from front to back and located below the rear end of the second deflection structure (12).

16. The hood according to any of the claims from 1 to 15, characterized in that, Further comprising an oil cup (5), the fume hood body (21) comprises a fume hood surrounding plate (213) and a fume hood bottom plate (214) arranged at the bottom side of the fume hood surrounding plate (213), the front side of the fume hood bottom plate (214) is provided with an oil blocking turnup (212) extending upward, the oil cup (5) is mounted on the lower side of the fume hood bottom plate (214), and the fume hood bottom plate (214) is provided with a fifth oil outlet hole (211) communicating with the oil cup (5).

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