Range hood

Abstract

The application discloses a range hood, which comprises a hood main body, a first cover plate, a first transmission member, a first structure part and a second structure part. The first transmission member comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod. One end of the second connecting rod is rotationally connected with a first connecting part of the first connecting rod, and the other end is rotationally connected with one end of the third connecting rod. The other end of the third connecting rod is rotationally connected with the first structure part. One end of the fourth connecting rod is rotationally connected with a second connecting part of the first connecting rod, and the other end is rotationally connected with one end of the fifth connecting rod. The other end of the fifth connecting rod is rotationally connected with the second structure part. The middle part of the fifth connecting rod is also rotationally connected with the middle part of the second connecting rod. The first connecting rod is connected with the first cover plate, and the third connecting rod is connected with the first structure part and connected with a driving member or the fifth connecting rod is connected with the second structure part and connected with the driving member. In the technical scheme, the first transmission member is approximately in a six-connecting-rod structure, and the range hood can be designed to be small in size.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical appliances, in particular to a range hood. BACKGROUND

[0002] The range hood is working by using the principle of fluid dynamics, and the oil fume is sucked by the fan assembly installed in the inner cavity of the range hood. There are panel opening and closing type range hoods on the market, which realize the opening and closing of the smoke suction port communicated with the inner cavity through the movement of the panel. When the smoke suction port is opened, the range hood can suck and exhaust the oil fume through the smoke suction port. In the related art, the panel opening and closing type range hood is relatively large in size, and it is easy to bring a sense of oppression to the user during use. SUMMARY

[0003] The main purpose of the present application is to provide a range hood, which aims to solve the technical problem that the existing panel opening and closing type range hood is relatively large in size and easy to bring a sense of oppression to the user during use.

[0004] In order to achieve the above-mentioned purpose, the range hood provided by the present application comprises: a hood main body, a first cover plate, a first transmission member and a driving member, the hood main body has a first smoke suction port, and the first cover plate is arranged corresponding to the first smoke suction port; a first structure part and a second structure part are installed in the hood main body in a spaced manner, and the first transmission member comprises:

[0005] a first connecting rod having a first connecting part and a second connecting part arranged in a spaced manner;

[0006] a second connecting rod rotatably connected to one end of the first connecting part of the first connecting rod;

[0007] a third connecting rod rotatably connected to one end of the second connecting rod away from the first connecting part, and rotatably connected to the first structure part at the other end;

[0008] a fourth connecting rod rotatably connected to the second connecting part of the first connecting rod; and

[0009] a fifth connecting rod rotatably connected to one end of the fourth connecting rod away from the second connecting part, and rotatably connected to the second structure part at the other end, and the middle part of the fifth connecting rod is further rotatably connected to the middle part of the second connecting rod;

[0010] Wherein, the first connecting rod is connected to the first cover plate, and the third connecting rod is connected to the first structure part at the position connected with the driving member or the fifth connecting rod is connected to the second structure part at the position connected with the driving member, so that under the driving of the driving member, the first cover plate is switched between a first position and a second position, the first cover plate closes the first smoke suction port in the first position, and the first cover plate opens the first smoke suction port in the second position.

[0011] In the technical scheme, the first transmission member is in a six-link structure, and the oil fume exhauster can be designed to be small. Specifically, if the third link is connected to the first structure part and the driving member, when the first cover plate is switched from the first position to the second position, the third link will drive the second link to move away from the first smoke inlet, and the fourth link will also move away from the fifth link. That is, when the first cover plate is switched from the first position to the second position, the first and second connecting parts of the first link connected to the first cover plate will move away from the first smoke inlet. In this way, the first cover plate can move outward without being hindered by the shell of the main body of the oil fume exhauster. Even if the inner plate of the first cover plate is attached to the opening end of the first smoke inlet in the first position, the first cover plate can still be opened smoothly, and the structural compactness of the oil fume exhauster can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 A perspective view of the first cover plate of the oil fume exhauster in the first position and the second cover plate in the third position according to an embodiment of the present application is shown.

[0014] Figure 2 A perspective view of the first cover plate of the oil fume exhauster in the second position and the second cover plate in the fourth position is shown. Figure 1

[0015] Figure 3 A perspective view of the first cover plate of the oil fume exhauster in the first position and the second cover plate in the third position according to another embodiment of the present application is shown.

[0016] Figure 4 A perspective view of the first cover plate of the oil fume exhauster in the second position and the second cover plate in the fourth position is shown. Figure 3

[0017] A perspective view of the first transmission member and the mounting bracket of the oil fume exhauster is shown. Figure 5 Figure 3 A perspective view of the second transmission member and the mounting bracket of the oil fume exhauster is shown.

[0018] Figure 6 Figure 3 A perspective view of the second transmission member and the mounting bracket of the oil fume exhauster is shown.

[0019] ​​​Figure 7 Fig. 2 is a perspective view of the first transmission member, the second transmission member and the mounting frame in the range hood shown in Fig. 1, viewed from another angle; Figure 3

[0020] Figure 8 Fig. 3 is a perspective view of an alternative solution of the second transmission member in the range hood shown in Fig. 1; Figure 3

[0021] Figure 9 Fig. 4 is a perspective view of the first transmission member, the second transmission member and the mounting frame in the range hood shown in Fig. 1; Figure 3

[0022] Figure 10 Fig. 5 is a perspective view of the first cover plate, the first mesh plate and the connecting plate in the range hood shown in Fig. 1; Figure 3

[0023] Figure 11 Fig. 6 is an exploded view of the first cover plate, the second cover plate, the first transmission member, the second transmission member, the mounting frame and the transmission rod in the range hood shown in Fig. 1; Figure 3

[0024] Figure 12 Fig. 7 is a perspective view of the range hood according to another embodiment provided by the present application, with the first cover plate in the second position and the second cover plate in the fourth position;

[0025] Figure 13 Fig. 8 is a perspective view of the range hood according to another embodiment provided by the present application, with the first cover plate in the first position and the second cover plate in the third position; Figure 12

[0026] Figure 14 Fig. 9 is a perspective view of the range hood according to another embodiment provided by the present application, with the first cover plate in the second position and the second cover plate in the fourth position;

[0027] Figure 15 Fig. 10 is a perspective view of the range hood according to another embodiment provided by the present application, with the first cover plate in the first position and the second cover plate in the third position. Figure 14

[0028] ​​​​​​​Explanation of reference numerals: 1, range hood; 11, main body of the range hood; 111, housing; 1111, first sub-housing; 1112, second sub-housing; 112, fan assembly; 113, inner cavity; 1131, second cavity; 114, first smoke suction port; 115, second smoke suction port; 116, ventilation port; 12, first cover plate; 121, first boundary line; 122, first edge; 123, second edge; 13, driving member; 131, motor; 141, first transmission member; 1411, first connecting rod; 1412, second connecting rod; 1413, third connecting rod; 14131, clamping protrusion; 1414, fourth connecting rod; 1415, fifth connecting rod; 14151, first surface; 1416, baffle; 14161, first opening; 142, second transmission member; 1421, slide rail; 1422, sliding part; 1423, sixth connecting rod; 1424, seventh connecting rod; 1425, sliding block; 1426, first plate body; 1427, second plate body; 1428, third plate surface; 1429, fourth plate surface; 1431, first connecting part; 1432, second connecting part; 15, mounting frame; 151, first structure part; 152, second structure part; 153, limiting structure; 154, mounting plate; 1541, first plate surface; 1542, second plate surface; 155, bracket; 1551, first part; 1552, second part; 1553, bent part; 16, second cover plate; 17, elastic member; 181, first mesh plate; 1811, mesh hole; 182, connecting plate; 183, smoke guide cavity; 184, first connecting member; 1841, second connecting piece; 185, second connecting member; 19, transmission rod; p, cooktop plane.

[0029] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0032] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0035] Please refer to Figure 1 and Figure 2 The embodiments of the present application provide an oil fume exhaust machine 1, which comprises a fume exhaust machine body 11, specifically, the fume exhaust machine body 11 comprises a shell 111 and a fan assembly 112. The shell 111 is formed with an inner cavity 113 and a first smoke suction port 114 communicating with the inner cavity 113, and the fan assembly 112 is located in the inner cavity 113 and used for generating negative pressure suction force, so that oil fume can be sucked into the inner cavity 113 through the first smoke suction port 114, and the kitchen will not be filled with oil fume, thereby improving the experience of users when cooking.

[0036] Please refer to Figure 3 and Figure 4, the range hood 1 further comprises a first cover plate 12, a driving member 13 and a first transmission member 141. The first cover plate 12 is arranged corresponding to the first smoke suction port 114, and the first cover plate 12 has a first position and a second position. In the first position, the first cover plate 12 closes the first smoke suction port 114, and in the second position, the first cover plate 12 opens the first smoke suction port 114. The first transmission member 141 is connected to the driving member 13 and the first cover plate 12, and is used to drive the first cover plate 12 to switch between the first position and the second position under the driving of the driving member 13. For example, when the range hood 1 is idle, the first transmission member 141 can drive the first cover plate 12 to be in the first position to close the first smoke suction port 114 under the driving of the driving member 13, so as to avoid dust and the like from entering the inner cavity 113 of the shell 111 through the first smoke suction port 114, or to avoid the fan assembly 112 from being exposed to cause damage. When the range hood 1 is working, the first transmission member 141 can drive the first cover plate 12 to be in the second position to open the first smoke suction port 114 under the driving of the driving member 13, so that the oil fume can be sucked into the inner cavity 113 through the first smoke suction port 114 after the fan assembly 112 is started.

[0037] Optionally, the first transmission member 141 can be used to drive the first cover plate 12 to rotate relative to the opening end surface of the first smoke suction port 114 to close or open the first smoke suction port 114 when the driving member 13 drives the movement. That is, the first cover plate 12 realizes the opening and closing of the first smoke suction port 114 by turning over, and compared with the scheme of realizing the opening and closing of the first smoke suction port 114 by translating the first cover plate 12 along the direction perpendicular to the opening central axis of the first smoke suction port 114, the scheme can realize the miniaturization design of the range hood 1.

[0038] For example, the inner plate surface of the first cover plate 12 has a first boundary line 121 away from the cooktop plane p, and the first cover plate 12 can rotate substantially with the first boundary line 121 as the rotation axis to realize the opening and closing of the first smoke suction port 114. In this way, when the range hood 1 is installed above the cooktop plane p in use, the oil fume above the cooktop plane p in the second position can be blocked by the inner plate surface of the turned-over first cover plate 12 to enter the first smoke suction port 114, that is, the turned-over first cover plate 12 can guide the transmission of the oil fume, and can improve the smoke suction amount of the first smoke suction port 114 and improve the use effect of the range hood 1.

[0039] Optionally, the first transmission member 141 can be substantially a six-bar linkage mechanism to drive the rotation of the first cover plate 12. Specifically, please refer to Figure 5, the range hood 1 can include a first structure part 151 and a second structure part 152 which are mounted in the hood main body 11 and are spaced apart. The first transmission member 141 can include a first connecting rod 1411, a second connecting rod 1412, a third connecting rod 1413, a fourth connecting rod 1414, and a fifth connecting rod 1415, the first connecting rod 1411 having a first connecting portion 1431 and a second connecting portion 1432 which are spaced apart; one end of the second connecting rod 1412 is rotationally connected with the first connecting portion 1431 of the first connecting rod 1411, and the other end is rotationally connected with one end of the third connecting rod 1413, and the other end of the third connecting rod 1413 is rotationally connected with the first structure part 151. One end of the fourth connecting rod 1414 is rotationally connected with the second connecting portion 1432 of the first connecting rod 1411, and the other end is rotationally connected with one end of the fifth connecting rod 1415, and the other end of the fifth connecting rod 1415 is rotationally connected with the second structure part 152, and the middle part of the fifth connecting rod 1415 is further rotationally connected with the middle part of the second connecting rod 1412.

[0040] The first connecting rod 1411 is connected with the first cover plate 12, and the third connecting rod 1413 is connected with the drive member 13 at the first structure part 151 or the fifth connecting rod 1415 is connected with the drive member 13 at the second structure part 152, so that under the driving of the drive member 13, the first cover plate 12 is switched between the first position and the second position.

[0041] If the third connecting rod 1413 is connected with the drive member 13 at the first structure part 151 as an example, when the first cover plate 12 is switched from the first position to the second position, under the driving of the drive member 13, the third connecting rod 1413 will not only drive the second connecting rod 1412 to move away from one end of the third connecting rod 1413 to the outside of the first smoke inlet 114, but also drive the fourth connecting rod 1414 to move away from one end of the fifth connecting rod 1415 to the outside of the first smoke inlet 114. That is, when the first cover plate 12 is switched from the first position to the second position, under the driving of the drive member 13, the first connecting portion 1431 and the second connecting portion 1432 of the first connecting rod 1411 connected with the first cover plate 12 will both move towards the outside of the first smoke inlet 114, so that the first cover plate 12 can not be easily hindered by the shell 111 of the hood main body 11 during the outward movement, that is, even if the inner plate surface of the first cover plate 12 is attached to the opening end surface of the first smoke inlet 114 in the first position, the first cover plate 12 can also be smoothly opened, and the structural compactness of the range hood 1 can be improved.

[0042] The first connecting rod 1411 connected with the first cover plate 12 can be that the first connecting rod 1411 is attached to the first cover plate 12 and connected by screws or the like. The third connecting rod 1413 connected with the first structure part 151 or the fifth connecting rod 1415 connected with the second structure part 152 can be fixedly connected with the output shaft of the driving member 13, so as to be able to rotate under the driving of the output shaft of the driving member 13. In the embodiment of the application, the third connecting rod 1413 connected with the first structure part 151 is fixedly connected with the output shaft of the driving member 13.

[0043] Optionally, the fifth connecting rod 1415 has a first surface 14151 facing the second connecting rod 1412, and the second connecting rod 1412 and the fourth connecting rod 1414 can be located on one side of the first surface 14151 of the fifth connecting rod 1415. Optionally, the second connecting rod 1412 has a second surface (not shown in the figure) facing the fifth connecting rod 1415, and the fifth connecting rod 1415 and the third connecting rod 1413 can be located on one side of the second surface of the second connecting rod 1412. So that the second connecting rod 1412, the third connecting rod 1413, the fourth connecting rod 1414 and the fifth connecting rod 1415 are relatively compact in the direction perpendicular to the first surface 14151, which is beneficial to the miniaturization of the first transmission member 141.

[0044] Optionally, the first transmission member 141 can further include a baffle 1416, which can be located on the side of the second surface of the second connecting rod 1412 and connected with the first connecting rod 1411. By arranging the fifth connecting rod 1415 and the baffle 1416 on one side, when assembling the range hood 1, the side where the baffle 1416 and the fifth connecting rod 1415 are located can be arranged towards the outside of the range hood 1, so that the second connecting rod 1412 and the fourth connecting rod 1414 are located on the inside and can be shielded by the baffle 1416, and the structure is more beautiful.

[0045] Optionally, the thickness of the fifth connecting rod 1415 and the thickness of the baffle 1416 can be substantially equal. The thickness of the second connecting rod 1412 and the thickness of the fourth connecting rod 1414 can be substantially equal, so that the thickness of the first transmission member 141 is relatively thin and the structure is relatively neat and compact. The thickness of the fifth connecting rod 1415 can be the thickness dimension in the direction perpendicular to the first surface 14151, and the thickness of the baffle 1416, the thickness of the second connecting rod 1412, the thickness of the third connecting rod 1413 and the thickness of the fourth connecting rod 1414 can be the thickness dimensions in the direction perpendicular to the first surface 14151, respectively.

[0046] Further optionally, the baffle 1416 can be provided with a first opening 14161, and the fifth connecting rod 1415 is connected to the fourth connecting rod 1414 at one end and extends to the first opening 14161. The fifth connecting rod 1415 extends to the first opening 14161 of the baffle 1416, which can reduce the gap between the baffle 1416 and the fifth connecting rod 1415 when the first cover plate 12 is opened, avoid the pinch phenomenon, improve the safety of the range hood 1, and also have certain aesthetic properties.

[0047] Optionally, the first connecting portion 1431 and the second connecting portion 1432 can be only part of the structure of the first connecting rod 1411. Specifically, part of the structure of the first connecting rod 1411 can be defined as the first connecting portion 1431, and part of the structure can be defined as the second connecting portion 1432, without the need to additionally provide the first connecting portion 1431 and the second connecting portion 1432, so as to simplify the structure of the range hood 1. Of course, the first connecting portion 1431 and / or the second connecting portion 1432 can also be structures different from the first connecting rod 1411, and the embodiments of the present application do not limit this.

[0048] Optionally, the first structure 151 and the second structure 152 can be directly mounted on the shell 111 of the range hood main body 11 to achieve fixation in the range hood main body 11. At least one of the first structure 151 and the second structure 152 can also be mounted on the mounting bracket 15 in the range hood main body 11, and the driving member 13 can also be mounted on the mounting bracket 15.

[0049] Optionally, the first structure 151 and the second structure 152 can be only part of the structure of the mounting bracket 15. Specifically, part of the structure of the mounting bracket 15 can be defined as the first structure 151, and part of the structure can be defined as the second structure 152, without the need to additionally provide the first structure 151 and the second structure 152, so as to simplify the structure of the range hood 1. Of course, the first structure 151 and / or the second structure 152 can also be structures different from the mounting bracket 15, and the embodiments of the present application do not limit this.

[0050] Optionally, the mounting bracket 15 can be provided with a limiting structure 153, which can be used to limit the movement of the first cover plate 12 to the second position, so that the first cover plate 12 is more accurately opened to the second position.

[0051] Optionally, the limiting structure 153 can be a folded edge. That is, the limiting structure 153 is formed by folding a part of the mounting frame 15. The limiting structure 153 can be arranged corresponding to the third connecting rod 1413 and / or the fifth connecting rod 1415. Optionally, a clamping protrusion can be arranged on the third connecting rod 1413 and / or the fifth connecting rod 1415, and when the clamping protrusion moves to abut against the limiting structure 153, it indicates that the first cover plate 12 moves to the second position. In the embodiment of the present application, the limiting structure 153 is arranged corresponding to the third connecting rod 1413, and the third connecting rod 1413 is provided with a clamping protrusion 14131, and when the clamping protrusion 14131 moves to abut against the limiting structure 153, it indicates that the first cover plate 12 moves to the second position.

[0052] Optionally, in the edge of the inner plate surface of the first cover plate 12, when the part of the edge close to the cooking table plane p contacts the opening end surface of the first smoke suction port 114, it indicates that the first cover plate 12 moves to the first position.

[0053] Please refer again to Figures 1 to 4 The housing 111 can also be formed with a second smoke suction port 115 communicating with the inner cavity 113, and the range hood 1 can further include a second cover plate 16 and a second transmission member 142. The second cover plate 16 is arranged corresponding to the second smoke suction port 115, and the second cover plate 16 has a third position and a fourth position. In the third position, the second cover plate 16 closes the second smoke suction port 115, and in the fourth position, the second cover plate 16 opens the second smoke suction port 115.

[0054] Optionally, when the second cover plate 16 is in the third position, the first cover plate 12 is in the first position, and when the second cover plate 16 is in the fourth position, the first cover plate 12 is in the second position. So that when the first cover plate 12 closes the first smoke suction port 114, the second cover plate 16 closes the second smoke suction port 115, and when the first cover plate 12 opens the first smoke suction port 114, the second cover plate 16 opens the second smoke suction port 115.

[0055] It should be noted that when the second cover plate 16 is in the third position, the first cover plate 12 can also be in the second position, and when the second cover plate 16 is in the fourth position, the first cover plate 12 can be in the first position. So that the opening of the first cover plate 12 and the second cover plate 16 is not synchronized, and the opening of the first smoke suction port 114 or the opening of the second smoke suction port 115 can be flexibly adjusted according to specific needs.

[0056] The second transmission member 142 connects the driving member 13 and the second cover plate 16, and is used to switch the second cover plate 16 between the third position and the fourth position under the driving of the driving member 13.

[0057] Optionally, the second driving member 142 can be used to drive the second cover plate 16 to move in a direction perpendicular to the opening central axis of the second smoking port 115 when the driving member 13 is driven to move, so as to close or open the second smoking port 115. Optionally, in use, the second cover plate 16 can be arranged close to the cooktop plane p, and the first cover plate 12 can be arranged on a side of the second cover plate 16 away from the cooktop plane p, at this time, the second cover plate 16 can be moved towards the first cover plate 12 to open the second smoking port 115, and be moved away from the first cover plate 12 to close the second smoking port 115.

[0058] It should be noted that the first smoking port 114 and the second smoking port 115 can be independent of each other, that is, the first smoking port 114 and the second smoking port 115 are not communicated. The first smoking port 114 and the second smoking port 115 can also be communicated to form a through hole, and part of the through hole is defined as the first smoking port 114 and part of the through hole is defined as the second smoking port 115. When the first smoking port 114 and the second smoking port 115 are communicated to form a through hole, if the first driving member 141 drives the first cover plate 12 to rotate substantially with the first boundary line 121 as the rotation axis, and the second driving member 142 drives the second cover plate 16 to move towards the first cover plate 12, at this time, the area of the through hole exposed on the side of the second cover plate 16 close to the first cover plate 12 can be defined as the first smoking port 114, and the area of the through hole exposed on the side of the second cover plate 16 away from the first cover plate 12 can be defined as the second smoking port 115.

[0059] Optionally, the second driving member 142 can be substantially a crank slider mechanism to drive the movement of the second cover plate 16. Specifically, referring to Figure 6 , the second driving member 142 can include a sliding rail 1421, a sliding part 1422, a sixth connecting rod 1423 and a seventh connecting rod 1424. The sliding rail 1421 is arranged on the mounting frame 15 and extends in a direction perpendicular to the opening central axis of the second smoking port 115. The sliding part 1422 is connected to the sliding rail 1421 and can slide along the length direction of the sliding rail 1421, and the second cover plate 16 is mounted on the sliding part 1422. One end of the sixth connecting rod 1423 is rotationally connected to the sliding part 1422, and the other end is rotationally connected to one end of the seventh connecting rod 1424. The other end of the seventh connecting rod 1424 is connected to the output shaft of the driving member 13, and the seventh connecting rod 1424 is used to rotate under the driving of the driving member 13, so as to drive the second cover plate 16 to slide along the length direction of the sliding rail 1421 with the sliding part 1422, thereby closing or opening the second smoking port 115.

[0060] Further optionally, in one possible implementation, the sliding part 1422 can include a sliding block 1425, a first plate body 1426 and a second plate body 1427. The sliding block 1425 is located in the slide rail 1421 and can slide along the length direction of the slide rail 1421. The first plate body 1426 has a third plate surface 1428 and a fourth plate surface 1429 located at opposite sides. The sliding block 1425 is located at one side of the third plate surface 1428 of the first plate body 1426 and is connected to the first plate body 1426. The second cover plate 16 is located at one side of the fourth plate surface 1429 of the first plate body 1426 and is connected to the first plate body 1426. The second plate body 1427 is connected to the first plate body 1426 and is bent and extended away from the fourth plate surface 1429 towards the third plate surface 1428. The second plate body 1427 is rotationally connected to the sixth connecting rod 1423. That is, the sliding block 1425 and the second plate body 1427 are both arranged at one side of the third plate surface 1428 of the first plate body 1426. In this way, the size of the sliding part 1422 in the direction perpendicular to the third plate surface 1428 can be reduced, and the structural compactness of the sliding part 1422 can be improved.

[0061] Optionally, the mounting frame 15 can include a mounting plate 154 and a support 155. The mounting plate 154 is arranged corresponding to the first smoking port 114. The mounting plate 154 can have a plate structure substantially parallel to the opening central axis of the first smoking port 114. The driving member 13, the first structural part 151 and the second structural part 152 are arranged on the plate surface of the mounting plate 154.

[0062] Further optionally, in combination with Figures 5 to 7 The mounting plate 154 can have a first plate surface 1541 and a second plate surface 1542 located at opposite sides. The first structural part 151, the second structural part 152 and the first transmission member 141 can be located at one side of the first plate surface 1541 of the mounting plate 154. The driving member 13 and the support 155 can be located at one side of the second plate surface 1542 of the mounting plate 154.

[0063] The support 155 can include a first part 1551 arranged corresponding to the first smoking port 114 and a second part 1552 arranged corresponding to the second smoking port 115. The first part 1551 is connected to the mounting plate 154. The second part 1552 is connected to the first part 1551. The part of the second part 1552 close to the second smoking port 115 can be bent to form a bent part 1553 substantially away from the second plate surface 1542 towards the first plate surface 1541. At this time, the slide rail 1421 of the second transmission member 142 can be mounted on the bent part 1553 of the second part 1552.

[0064] In yet another possible implementation, in combination with Figure 8The sliding part 1422 comprises a sliding block 1425, a first plate body 1426 and a second plate body 1427. The sliding block 1425 is located in the slide rail 1421 and can slide along the length direction of the slide rail 1421. The first plate body 1426 has a third plate surface 1428 and a fourth plate surface 1429 which are oppositely distributed. The second cover plate 16 is located on the side of the fourth plate surface 1429 of the first plate body 1426 and is connected to the first plate body 1426. The second plate body 1427 is connected to the first plate body 1426 and extends in a direction away from the fourth plate surface 1429 of the third plate surface 1428. In the direction parallel to the third plate surface 1428, the first plate body 1426 and the sliding block 1425 are located on opposite sides of the second plate body 1427. The second plate body 1427 is connected to the sliding block 1425 and the second plate body 1427 is rotationally connected to the sixth connecting rod 1423. In the direction parallel to the third plate surface 1428, the first plate body 1426 and the sliding block 1425 are distributed on opposite sides of the second plate body 1427, which can reduce the size of the sliding part 1422 in the direction perpendicular to the third plate surface 1428 and improve the structural compactness of the sliding part 1422.

[0065] Further optionally, in the direction parallel to the third plate surface 1428, the sixth connecting rod 1423, the slide rail 1421 and the sliding block 1425 can be located on the same side of the second plate body 1427.

[0066] Optionally, the range hood 1 can further comprise an elastic member 17 which can extend along the length direction of the slide rail 1421 and has two ends respectively connected to the mounting frame 15 and the sliding part 1422. The sliding part 1422 is connected to the mounting frame 15 through the elastic member 17. In this way, the gravity of the second cover plate 16 and the second transmission member 142 can be transmitted to the mounting frame 15 through the elastic member 17, which can reduce the force required by the driving member 13 to maintain the balance of the second cover plate 16, and further a small-size and low-cost driving member 13 can be selected. Optionally, the elastic member 17 can be distributed in the vertical direction to maximize the offset of the gravity of the second cover plate 16 and reduce the use cost of the driving member 13. The elastic member 17 can be any component capable of deformation, such as a spring, and the embodiments of the present application do not make any limitation in this regard.

[0067] Optionally, referring to Figure 9 The first transmission member 141 and the second transmission member 142 are both connected to the output shaft of the driving member 13. The same driving member 13 can drive the first transmission member 141 and the second transmission member 142 to move at the same time, realizing the switching of the first cover plate 12 between the first position and the second position and the switching of the second cover plate 16 between the third position and the fourth position. In the embodiments of the present application, the third connecting rod 1413 of the first transmission member 141 and the seventh connecting rod 1424 of the second transmission member 142 can be connected to the output shaft of the driving member 13.

[0068] Optionally, referring toFigure 10 And Figure 11 In one possible implementation, the range hood 1 can include a first mesh plate 181 and a connecting plate 182. The first mesh plate 181 is located on the side of the inner plate surface of the first cover plate 12, and a plurality of mesh holes 1811 are arranged on the first mesh plate 181. The connecting plate 182 is connected between the first mesh plate 181 and the first cover plate 12, and forms a smoke guide cavity 183 with the first mesh plate 181 and the first cover plate 12. The smoke guide cavity 183 is in communication with the inner cavity 113 of the range hood body 11. When the first cover plate 12 is in the first position, the first mesh plate 181 is located in the range hood body 11. When the first cover plate 12 is in the second position, the first mesh plate 181 is located outside the range hood body 11, and the first smoke suction port 114 is in communication with the outside through the mesh holes 1811.

[0069] Further optionally, the first mesh plate 181 and the connecting plate 182 can be an integrated structure. The range hood 1 can further include a first connecting piece 184 connected between the connecting plate 182 and the first cover plate 12. More specifically, the first connecting piece 184 can include a first connecting plate (not shown in the figure) abutting the inner plate surface of the first cover plate 12, and a second connecting plate 1841 abutting the outer peripheral surface of the connecting plate 182. The first connecting plate is connected with the second connecting plate 1841.

[0070] The first connecting piece 184 can also be connected with the first transmission piece 141 to achieve the connection between the first cover plate 12 and the first transmission piece 141. More specifically, the first connecting piece 184 can be connected with the baffle 1416 to achieve the connection between the first cover plate 12 and the first transmission piece 141.

[0071] Optionally, when the first cover plate 12 is in the second position, the angle between the plate surface of the first mesh plate 181 and the cooktop plane p can be greater than or equal to 12° and less than or equal to 20°. Specifically, when the first cover plate 12 is in the second position, among the edge lines of the plate surface of the first mesh plate 181, the edge line close to the opening end surface of the first smoke suction port 114 can be located between the edge line away from the opening end surface of the first smoke suction port 114 and the cooktop plane p. It can be understood that when the first cover plate 12 is in the second position, the plate surface of the first mesh plate 181 is opened obliquely upward rather than obliquely downward.

[0072] In another possible implementation, please refer again to Figure 1 And Figure 2, the range hood 1 can include a first mesh plate 181, the first mesh plate 181 is provided with a plurality of mesh holes 1811, the first mesh plate 181 is arranged corresponding to the first smoke suction port 114 and connected to the hood main body 11. In the second position, the first smoke suction port 114 is communicated with the outside through the mesh holes 1811 of the first mesh plate 181. Since the first mesh plate 181 is connected to the hood main body 11, when the first cover plate 12 switches between the first position and the second position, the first mesh plate 181 will not move with the first cover plate 12, which can reduce the driving force requirement of the driving member 13, and then a small size and low cost driving member 13 can be selected. Moreover, since the first mesh plate 181 is directly connected to the hood main body 11, the structural stability of the first mesh plate 181 after long-term use can be ensured, and falling off and scratching can be avoided.

[0073] Optionally, the first mesh plate 181 can be connected to the mounting frame 15 in the hood main body 11, so as to realize the installation of the first mesh plate 181 at the first smoke suction port 114.

[0074] Optionally, the range hood 1 can further include a second mesh plate (not shown in the figure) arranged at the second smoke suction port 115, the second mesh plate can be provided with mesh holes, and the second mesh plate can be connected to the hood main body 11. Optionally, the second mesh plate can be connected to the mounting frame 15 in the hood main body 11, so as to realize the installation of the second mesh plate at the second smoke suction port 115.

[0075] In another possible solution, please refer to Figure 12 , the first smoke suction port 114 and the second smoke suction port 115 can be arranged without the mesh plate, so that the oil fume can directly pass through the first smoke suction port 114 and the second smoke suction port 115 into the inner cavity 113.

[0076] Optionally, please refer to Figure 11 , the range hood 1 can further include a second connecting member 185, the second connecting member 185 is connected between the second cover plate 16 and the second driving member 142. More specifically, the second connecting member 185 can be attached to and connected with the inner plate surface of the second cover plate 16, and the second connecting member 185 can be connected with the sliding part 1422 of the second driving member 142.

[0077] Optionally, the driving member 13 can comprise a motor 131, and an output shaft of the driving member 13 can correspond to an output shaft of the motor 131. The motor 131 has a first state and a second state. In the first state, the motor 131 drives the first transmission member 141 to move so that the first cover plate 12 is located at the first position. In the second state, the motor 131 drives the first transmission member 141 to move so that the first cover plate 12 is located at the second position. When the motor 131 is switched from the first state to the second state, a rotation stroke of the output shaft of the motor 131 can be greater than or equal to 85° and less than or equal to 95°. The rotation stroke of the output shaft of the motor 131 will affect the rotation stroke of the first cover plate 12 when the first cover plate 12 is switched from the first position to the second position, that is, affect the opening degree of the first smoking port 114 by the first cover plate 12. Reasonable limitation on the rotation stroke of the output shaft of the motor 131 can ensure good smoking effect at the first smoking port 114 on the premise of reducing the power consumption of the motor 131.

[0078] Optionally, when the first cover plate 12 is switched from the first position to the second position, a rotation stroke of the first cover plate 12 around the first boundary line 121 can be greater than or equal to 65° and less than or equal to 75°. Optionally, when the second cover plate 16 is switched from the third position to the fourth position, a movement stroke of the second cover plate 16 in a direction perpendicular to the opening central axis of the second smoking port 115 can be greater than or equal to 100 mm and less than or equal to 110 mm.

[0079] Optionally, the number of the first transmission members 141 can be two. The inner plate surface of the first cover plate 12 has a first edge 122 and a second edge 123 distributed oppositely. The two first transmission members 141 are respectively located on one side of the first edge 122 of the first cover plate 12 and on one side of the second edge 123 of the first cover plate 12.

[0080] The driving member 13 can be provided corresponding to and connected with one of the first transmission members 141. The two first transmission members 141 are drivingly connected through the transmission rod 19. By providing the first transmission members 141 on both sides of the first cover plate 12, the stability of the first cover plate 12 during movement can be improved.

[0081] The two ends of the transmission rod 19 can be respectively mounted on the two first transmission members 141 to realize synchronous movement of the two first transmission members 141. The two first transmission members 141 are structurally identical and can be arranged substantially in mirror image. Optionally, when the number of the first transmission members 141 is two, the number of the mounting frames 15 can also be two, and each mounting frame 15 corresponds to one of the first transmission members 141.

[0082] Optionally, the number of the second transmission members 142 can also be two, each of the second transmission members 142 is arranged corresponding to one of the first transmission members 141, and the two second transmission members 142 are also transmissionally connected through the transmission rod 19. Optionally, the two second transmission members 142 are identical in structure, and the two second transmission members 142 can be arranged in a mirror image.

[0083] The transmission rod 19 is located in the inner cavity 113. Optionally, referring to FIGS. 3 and Figure 4 The transmission rod 19 can be arranged corresponding to the first cover plate 12. It should be noted that the transmission rod 19 can also be arranged corresponding to the second cover plate 16, which is not limited in the embodiments of the present application. Optionally, the transmission rod 19 can be located on the side of the fan assembly 112 close to the first cover plate 12 or on the side of the fan assembly 112 close to the second cover plate 16, and the transmission rod 19 can also be located on the side of the fan assembly 112 away from the first cover plate 12 or on the side of the fan assembly 112 away from the second cover plate 16. The design form of the transmission rod 19 has diversity, which can be flexibly adjusted according to specific needs.

[0084] Optionally, referring again to Figure 1 The outer plate surface of the first cover plate 12 in the first position and the outer plate surface of the second cover plate 16 in the third position can be located in the same plane, so as to improve the appearance flatness and aesthetic appearance of the range hood 1 and facilitate cleaning.

[0085] Optionally, the gap between the first cover plate 12 in the first position and the second cover plate 16 in the third position can be greater than or equal to 3 mm and less than or equal to 5 mm, so as to realize the miniaturization of the gap between the first cover plate 12 and the second cover plate 16 on the premise of ensuring that the first cover plate 12 can be smoothly opened and closed.

[0086] It should be noted that the first smoke suction port 114 and / or the second smoke suction port 115 can not only be opened to suck in oil fume during cooking, but also be opened to purify indoor air when not cooking. Of course, the shell 111 can also be additionally provided with a ventilation port 116 to purify indoor air through the ventilation port 116, which is not limited in the embodiments of the present application.

[0087] In an exemplary scheme, in combination with Figure 1 and Figure 2The ventilation opening 116 can be in communication with the first smoke suction opening 114 and / or the second smoke suction opening 115, and when the first cover plate 12 is in the first position and the second cover plate 16 is in the third position, the range hood 1 can be in communication with the outside through the ventilation opening 116. Optionally, when the ventilation opening 116 is in communication with the first smoke suction opening 114 and the first smoke suction opening 114 is provided with the first mesh plate 181, the first mesh plate 181 can also extend to the ventilation opening 116, so that the ventilation opening 116 is in communication with the outside through the mesh holes 1811 on the first mesh plate 181, thereby improving the safety of the range hood 1. Optionally, when the ventilation opening 116 is in communication with the second smoke suction opening 115 and the second smoke suction opening 115 is provided with the second mesh plate, the second mesh plate can also extend to the ventilation opening 116. In another exemplary scheme, in combination with Figure 12 and Figure 13 The ventilation opening 116 can be independent of the first smoke suction opening 114 and independent of the second smoke suction opening 115. The ventilation opening 116 can include a plurality of small holes arranged at intervals to improve the safety performance of the range hood 1.

[0088] Optionally, the ventilation opening 116 can be located on the side of the first smoke suction opening 114 away from the cooktop plane p, or on the side of the second smoke suction opening 115 close to the cooktop plane p, and the specific arrangement of the ventilation opening 116 is not limited in the embodiments of the present application.

[0089] It should be noted that, as shown in Figure 14 and Figure 15 The range hood 1 can also not be provided with the ventilation opening 116, so that when the first cover plate 12 is in the first position and the second cover plate 16 is in the third position, the range hood 1 is in a substantially closed state.

[0090] In an exemplary scheme, in combination with Figure 12 and Figure 13 When the first cover plate 12 is in the first position, the fan assembly 112 is located on the side of the inner plate surface of the first cover plate 12 and can be substantially arranged corresponding to the first cover plate 12. In this way, the distance between the air inlet of the fan assembly 112 and the first smoke suction opening 114 in the direction parallel to the inner plate surface of the first cover plate 12 can be reduced, thereby improving the working efficiency of the range hood 1.

[0091] In another exemplary scheme, in combination with Figure 14 and Figure 15The housing 111 can be divided into a first sub-housing 1111 and a second sub-housing 1112, which can be arranged in a direction parallel to the inner surface of the first cover plate 12 in the first position. The first sub-housing 1111 has a first chamber (not shown in the figure), and the second sub-housing 1112 has a second chamber 1131, and the first chamber and the second chamber 1131 are in communication. The inner cavity 113 of the range hood 1 described above includes the first chamber and the second chamber 1131. The fan assembly 112 can be arranged in the first chamber, and the first smoke inlet 114 and the second smoke inlet 115 can be arranged on the second sub-housing 1112 and in communication with the second chamber 1131. In the embodiment of the present application, the first sub-housing 1111 is located above the second sub-housing 1112.

[0092] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made under the concept of the present application, using the content of the present application specification and drawings, or directly / indirectly applied to other related technical fields is included in the patent protection scope of the present application.

Claims

1. A range hood, characterized in that, The range hood includes a main body, a first cover plate, a first transmission component, a drive component, a first structural part, and a second structural part. The main body has a first smoke inlet, and the first cover plate is disposed corresponding to the first smoke inlet. The first structural part and the second structural part are spaced apart within the main body. The first transmission component includes: The first link has a first connecting part and a second connecting part that are spaced apart; The second link is rotatably connected at one end to the first connecting part of the first link; The third link has one end rotatably connected to the end of the second link away from the first connecting part, and the other end rotatably connected to the first structural part. The fourth link, one end of which is rotatably connected to the second connecting portion of the first link; and The fifth link has one end rotatably connected to the end of the fourth link away from the second connecting part, and the other end rotatably connected to the second structural part. The middle part of the fifth link is also rotatably connected to the middle part of the second link. Wherein, the first connecting rod is connected to the first cover plate, the third connecting rod is connected to the first structural part and connected to the driving member, or the fifth connecting rod is connected to the second structural part and connected to the driving member, so that under the drive of the driving member, the first cover plate switches between a first position and a second position. In the first position, the first cover plate closes the first smoke port, and in the second position, the first cover plate opens the first smoke port. The range hood further includes a first mesh plate and a connecting plate. The first mesh plate is located on the side where the inner surface of the first cover plate is located, and the first mesh plate is provided with a plurality of mesh holes. The connecting plate is connected between the first mesh plate and the first cover plate and forms a smoke guiding cavity with the first mesh plate and the first cover plate. The smoke guiding cavity is in communication with the inner cavity of the range hood body. When the first cover plate is in the first position, the first mesh plate is located inside the range hood body. When the first cover plate is in the second position, the first mesh plate is located outside the range hood body and the first smoke inlet is in communication with the outside through the mesh holes.

2. The range hood as described in claim 1, characterized in that, The fifth link has a first surface facing the second link, and both the second link and the fourth link are located on the same side as the first surface of the fifth link; and / or The second link has a second surface facing the fifth link, and both the fifth link and the third link are located on the same side as the second surface of the second link.

3. The range hood as described in claim 1, characterized in that, The second link has a second surface facing the fifth link, and the first transmission member further includes: The baffle, along with the fifth link, is located on the same side as the second surface of the second link and is connected to the first link. The baffle has a first opening, and one end of the fifth link, which is rotatably connected to the fourth link, extends to the first opening.

4. The range hood as described in claim 1, characterized in that, Also includes: The mounting bracket is located inside and connected to the main body of the range hood, and the drive component, the first structural part, and the second structural part are all mounted on the mounting bracket.

5. The range hood as described in claim 4, characterized in that, The mounting bracket is provided with a limiting structure. When the first transmission member moves under the drive of the driving member to abut against the limiting structure, the first cover plate is in the second position.

6. The range hood as described in claim 5, characterized in that, The third link is provided with a latching protrusion that works in conjunction with the limiting structure. When the latching protrusion moves under the drive of the driving member to abut against the limiting structure, the first cover plate is in the second position.

7. The range hood as described in claim 4, characterized in that, The mounting bracket includes: The mounting plate is provided corresponding to the first smoke inlet and parallel to the central axis of the opening of the first smoke inlet. The mounting plate has a first plate surface and a second plate surface distributed opposite to each other. The first transmission member is located on the side where the first plate surface of the mounting plate is located, and the driving member is located on the side where the second plate surface of the mounting plate is located.

8. The range hood as described in claim 4, characterized in that, The main body of the range hood also has a second smoke inlet, and the range hood further includes: The second cover plate is provided corresponding to the second smoke inlet; The second transmission component connects the second cover plate and the driving component, and is used to switch the second cover plate between a third position and a fourth position under the drive of the driving component. In the third position, the second cover plate closes the second smoke inlet, and in the fourth position, the second cover plate opens the second smoke inlet.

9. The range hood as described in claim 8, characterized in that, When the driving member drives the first transmission member to move so that the first cover plate is in the first position, the driving member drives the second transmission member to move so that the second cover plate is in the third position; when the driving member drives the first transmission member to move so that the first cover plate is in the second position, the driving member drives the second transmission member to move so that the second cover plate is in the fourth position.

10. The range hood as described in claim 8, characterized in that, The second transmission member is used to drive the second cover plate to move along the direction perpendicular to the central axis of the second smoking port when the driving member drives the movement, so as to close or open the second smoking port.

11. The range hood as described in claim 10, characterized in that, The second transmission component includes: A slide rail is disposed on the mounting bracket and extends along a direction perpendicular to the central axis of the second smoke inlet; A sliding part is connected to the slide rail and can slide along the length direction of the slide rail; the sliding part is equipped with the second cover plate. The sixth link, one end of which is rotatably connected to the sliding part; and The seventh link is rotatably connected at one end to the end of the sixth link away from the sliding part, and at the other end to the output shaft of the drive member. The seventh link is used to rotate under the drive of the drive member so that the second cover plate slides along the length direction of the slide rail with the sliding part, thereby realizing the second cover plate closing the second smoking port or opening the second smoking port.

12. The range hood as described in claim 11, characterized in that, The sliding part includes: A slider is located within the slide rail and can slide along the length of the slide rail; A first plate has a third plate surface and a fourth plate surface distributed opposite to each other. The slider is located on the side of the first plate with the third plate surface and is connected to the first plate. The second cover plate is located on the side of the first plate with the fourth plate surface and is connected to the first plate. The second plate is connected to the first plate and bends and extends toward the third plate surface away from the fourth plate surface. The second plate is rotatably connected to the sixth link.

13. The range hood as described in claim 11, characterized in that, Also includes: An elastic element extends along the length of the slide rail and is connected at both ends to the mounting bracket and the sliding part, respectively.

14. The range hood as described in claim 1, characterized in that, The range hood is used to be installed above the stove surface, and when the first cover plate is in the second position, the angle between the surface of the first mesh plate and the stove surface is greater than or equal to 12° and less than or equal to 20°.

15. The range hood as described in claim 1, characterized in that, The number of the first transmission components is two. The inner surface of the first cover plate has a first edge and a second edge that are relatively distributed. The two first transmission components are respectively located on one side of the first edge of the first cover plate and on the other side of the second edge of the first cover plate. The driving component is provided corresponding to one of the first transmission components and is connected to the one of the first transmission components. The two first transmission components are connected by a transmission rod.

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