Range hood head opening and closing device, range hood and integrated cooker

Abstract

The utility model relates to the technical field of cooking equipment, and discloses a range hood head opening and closing device, a range hood and an integrated cooker, a driving unit drives a lifting part to lift relative to a head frame, so that the lifting part drives an opening and closing plate to move to switch the opening and closing plate between an opening position and a closing position, and when the opening and closing plate is limited to be in the closing position, the opening and closing plate is opened. The opening and closing plate is located at the opening of the oil smoke suction port, the front side face of the opening and closing plate is flush with the front side face of the head frame, and the attractive effect of the range hood can be improved when the opening and closing plate shields the oil smoke suction port. When the opening and closing plate is located at the opening position, the opening and closing plate is located above the oil smoke suction port so as to open the oil smoke suction port, the opening and closing plate is located on the front side of the front side face of the head frame, and compared with the mode that the opening and closing plate is stored in the range hood, the opening and closing plate is clean.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking equipment, in particular to a range hood head opening and closing device, a range hood and an integrated stove. Background Art

[0002] The front end of the range hood is provided with a fume inlet, through which external fume enters the range hood. The fume inlet is equipped with an opening and closing plate, which is movably arranged on the opening and closing plate of the range hood. When the range hood is working, the opening and closing plate opens the fume inlet, so that the fume is sucked into the range hood through the fume inlet cup; when the range hood is not working, the opening and closing plate closes the fume inlet, which can not only prevent the spread of odor inside the range hood and reduce the backflow of fume from the public flue, but also improve the aesthetic effect of the range hood.

[0003] In the prior art, for a rotating opening and closing plate, when the opening and closing plate closes the oil smoke inlet, the opening and closing plate protrudes from the oil smoke inlet, seriously affecting the aesthetic effect of the range hood; for a lifting opening and closing plate, when the opening and closing plate opens the oil smoke inlet, the opening and closing plate is received inside the range hood, and is easily stained with oil stains inside. Therefore, a range hood head opening and closing device is urgently needed to solve the above technical problems. Utility Model Content

[0004] One of the technical problems solved by the utility model is to provide a range hood head opening and closing device, which can improve the aesthetics of the range hood when the opening and closing plate closes the range hood intake port, and prevent the opening and closing plate from opening the range hood and causing oil stains inside the range hood.

[0005] The second technical problem solved by the utility model is to provide a range hood which can improve the appearance of the range hood.

[0006] The third technical problem solved by the present invention is to provide an integrated stove which can improve the appearance of the integrated stove.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] A range hood head opening and closing device comprises a head frame, an opening and closing plate and a driving assembly, wherein the front side of the head frame is provided with a range hood suction port;

[0009] The driving assembly includes a driving unit and a lifting member slidably connected to the head frame in a vertical direction; the lifting member is in transmission connection with the opening and closing plate, and the driving unit can move and switch the opening and closing plate between an open position and a closed position by driving the lifting member to move up and down;

[0010] When the opening and closing plate is located at the open position, the opening and closing plate is located above the oil fume intake port to open the oil fume intake port, and the opening and closing plate is located at the front side of the front side of the head frame; when the opening and closing plate is located at the closed position, the opening and closing plate is located at the opening of the oil fume intake port to cover the oil fume intake port, and the front side of the opening and closing plate is flush with the front side of the head frame.

[0011] Compared with the background technology, the range hood head opening and closing device provided by the utility model has the following beneficial effects: the lifting member is driven to rise and fall relative to the head frame by the driving unit, so that the lifting member drives the opening and closing plate to move so that the opening and closing plate switches between the open position and the closed position, and by limiting that when the opening and closing plate is in the closed position, the opening and closing plate is located at the opening of the oil smoke inlet and the front side of the opening and closing plate is flush with the front side of the head frame, the aesthetic effect of the range hood when the opening and closing plate blocks the oil smoke inlet can be improved. When the opening and closing plate is in the open position, the opening and closing plate is located above the oil smoke inlet to open the oil smoke inlet, and the opening and closing plate is located at the front side of the front side of the head frame, and compared with the opening and closing plate being received inside the range hood, the opening and closing plate is cleaner.

[0012] In some embodiments, a first guide groove extending in the front-to-back direction is provided on the output end of the lifting member, and a second guide groove is provided on the head frame, wherein the second guide groove includes a guide groove 1 extending in the vertical direction, and a guide groove 2 whose one end is connected to the guide groove 1 and the other end extends to the rear and lower side of the guide groove 1; the opening and closing plate is connected to a guide member, and the guide member is slidably provided in the first guide groove in the front-to-back direction, and is slidably provided in the second guide groove in the extension direction of the second guide groove;

[0013] When the opening and closing plate is in the open position, the guide member slides with the guide groove 1 and abuts against the front inner wall of the first guide groove; when the opening and closing plate is in the closed position, the guide member slides with the guide groove 2 and abuts against the rear inner wall of the first guide groove.

[0014] In some of the embodiments, a mounting bracket is fixed to the rear side of the opening and closing plate, the mounting bracket corresponds to the lifting member one by one, and one end of the guide member is fixed to the mounting bracket.

[0015] In some embodiments, the head frame includes a frame body, side frames provided at the left and right ends of the frame body and connected to the frame body, and mounting parts corresponding one to one with the lifting parts, the mounting parts are glued and fixed to the side frames, or are interference fit with the mounting holes on the side frames, or are riveted to the mounting holes, or are connected to the side frames by fasteners, and the second guide groove is provided on the mounting parts.

[0016] In some embodiments, the driving unit includes a driving motor fixed to the back side of the head frame, a driving shaft extending in the left-right direction of the head frame, and two transmission gears respectively fixed to the left and right ends of the driving shaft, the driving motor is located between the two transmission gears, and the output end of the driving motor is transmission-connected to the middle part of the driving shaft, and the axial ends of the driving shaft are rotationally connected to the left and right ends of the head frame respectively; the lifting member corresponds one-to-one to the transmission gear and is a rack meshing with the transmission gear.

[0017] In some embodiments, the drive assembly also includes a first bevel gear and a second bevel gear meshing with the first bevel gear, the first bevel gear is fixedly connected to the output shaft of the drive motor, the second bevel gear is fixed to the middle part of the drive shaft, and the first bevel gear and the second bevel gear are meshingly connected.

[0018] In some embodiments, both left and right sides of the head frame are provided with mounting cavities, the mounting cavities correspond to the lifting members one by one, and the lifting members and the transmission gears meshing therewith are both arranged in the corresponding mounting cavities;

[0019] The head frame is provided with a maintenance hole connected to the installation cavity, and the maintenance hole can expose at least part of the lifting member and the transmission gear meshing with the lifting member; the head frame is detachably connected with a maintenance cover to block the maintenance hole.

[0020] In some embodiments, the lifting member is connected to a slider, a guide rail is provided on the head frame, a slide groove is provided on one of the guide rail and the slider, and the other is slidably provided in the slide groove along the vertical direction and is limited in the slide groove along the left and right directions of the head frame.

[0021] The above second technical problem is solved by the following technical solution:

[0022] A range hood comprises the range hood head opening and closing device described in any one of the above schemes.

[0023] Compared with the background technology, the range hood provided by the utility model has the following beneficial effects: the range hood includes the above-mentioned range hood head opening and closing device, and the lifting member is driven to lift relative to the head frame by the driving unit, so that the lifting member drives the opening and closing plate to move so that the opening and closing plate switches between the open position and the closed position, and by limiting that when the opening and closing plate is in the closed position, the opening and closing plate is located at the opening of the oil smoke inlet and the front side of the opening and closing plate is flush with the front side of the head frame, the aesthetic effect of the range hood when the opening and closing plate blocks the oil smoke inlet can be improved. When the opening and closing plate is in the open position, the opening and closing plate is located above the oil smoke inlet to open the oil smoke inlet, and the opening and closing plate is located on the front side of the front side of the head frame, and compared with the opening and closing plate being received inside the range hood, the opening and closing plate is cleaner.

[0024] The third technical problem mentioned above is solved by the following technical solution:

[0025] An integrated stove comprises the above-mentioned range hood.

[0026] Compared with the background technology, the integrated stove provided by the utility model has the following beneficial effects: the integrated stove includes the above-mentioned range hood, and the driving unit drives the lifting member to lift relative to the head frame, so that the lifting member drives the opening and closing plate to move so that the opening and closing plate switches between the open position and the closed position. By limiting that when the opening and closing plate is in the closed position, the opening and closing plate is located at the opening of the oil smoke inlet and the front side of the opening and closing plate is flush with the front side of the head frame, the aesthetic effect of the range hood when the opening and closing plate blocks the oil smoke inlet can be improved. When the opening and closing plate is in the open position, the opening and closing plate is located above the oil smoke inlet to open the oil smoke inlet, and the opening and closing plate is located on the front side of the front side of the head frame. Compared with receiving the opening and closing plate inside the range hood, the opening and closing plate is cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0028] Figure 1 It is a structural schematic diagram of the range hood head opening and closing device provided by the embodiment of the utility model when the range hood suction port is opened;

[0029] Figure 2 It is a structural schematic diagram of the range hood head opening and closing device when the range hood inlet is closed provided by an embodiment of the utility model;

[0030] Figure 3 This is a partial structural diagram of the range hood head opening and closing device provided by the embodiment of the utility model Figure 1 ;

[0031] Figure 4 It is a structural schematic diagram of a mounting member provided in an embodiment of the utility model;

[0032] Figure 5 It is a disassembled schematic diagram of the range hood head opening and closing device provided by an embodiment of the utility model;

[0033] Figure 6 It is a schematic diagram of the disassembly of the guide rail and the slider provided in the embodiment of the utility model;

[0034] Figure 7 yes Figure 5 A local enlarged schematic diagram of the middle A;

[0035] Figure 8 yes Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0036] Fig. 9 This is a partial structural diagram of the range hood head opening and closing device provided by the embodiment of the utility model Figure 2 ;

[0037] Fig.10 yes Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0038] In the figure:

[0039] 1. Head frame; 10. Oil smoke inlet; 11. Frame body; 111. Assembly cavity; 112. Front side panel; 113. Left and right side panels; 114. Rear side panel; 115. Top panel; 116. Lower side panel;

[0040] 12. Mounting member; 121. Second guide groove; 1211. Guide groove one; 1212. Guide groove two; 13. Maintenance cover; 131. Clamping part; 14. Guide rail; 141. Slide groove; 142. Limiting groove; 15. Side frame; 151. Mounting cavity; 152. Mounting hole; 153. Maintenance hole; 1531. Inner flange; 1532. Mounting ear; 1533. Clamping hole;

[0041] 2. Opening and closing plate; 21. Mounting bracket; 22. Guide piece;

[0042] 3. Driving assembly; 31. Driving motor; 32. Driving shaft; 331. Transmission gear; 332. Lifting member; 3320. Mounting convex portion; 3321. First guide groove; 3322. First lightening hole; 333. Sliding block; 3331. Limiting convex portion; 3332. Second lightening hole; 34. Bearing; 35. First bevel gear; 36. Second bevel gear; 4. Smoke baffle. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0044] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0047] like Figures 1 to 3As shown, an embodiment of the utility model provides a range hood head opening and closing device and a range hood, the range hood comprising the range hood head opening and closing device, the range hood head opening and closing device comprising a head frame 1, an opening and closing plate 2 and a driving assembly 3, wherein a fume inhalation port 10 is provided on the front side of the head frame 1; the driving assembly 3 comprises a driving unit, and a lifting member 332 slidably connected to the head frame 1 in a vertical direction, the lifting member is transmission-connected to the opening and closing plate 2, the driving unit can move and switch the opening and closing plate 2 between an open position and a closed position by driving the lifting member 332 to lift and lower, when the opening and closing plate 2 is in the open position, the opening and closing plate 2 is located above the fume inhalation port 10 to open the fume inhalation port 10, and the opening and closing plate 2 is located on the front side of the front side of the head frame 1; when the opening and closing plate 2 is in the closed position, the opening and closing plate 2 is located at the opening of the fume inhalation port 10 to cover the fume inhalation port 10, and the front side of the opening and closing plate 2 is flush with the front side of the head frame 1.

[0048] By limiting that when the opening and closing plate 2 is in the closed position, the opening and closing plate 2 is located at the opening of the oil smoke inlet 10 and the front side of the opening and closing plate 2 is flush with the front side of the head frame 1, the aesthetic effect of the range hood when the opening and closing plate 2 blocks the oil smoke inlet 10 can be improved. When the opening and closing plate 2 is in the open position, the opening and closing plate 2 is located above the oil smoke inlet 10 to open the oil smoke inlet 10, and the opening and closing plate 2 is located at the front side of the front side of the head frame 1; compared with the opening and closing plate 2 being retracted into the range hood when the oil smoke inlet 10 is opened, the opening and closing plate 2 is cleaner.

[0049] In some embodiments, Figure 3 and Figure 4 As shown, the lifting member 332 is provided with a first guide groove 3321 extending in the front-to-back direction, and the head frame 1 is provided with a second guide groove 121, the second guide groove 121 includes a guide groove 1 1211 extending in the vertical direction, and a guide groove 2 1212 connected to the guide groove 1 1211 at one end and extending to the rear and lower side of the guide groove 1 1211 at the other end; the opening and closing plate 2 is connected with a guide member 22, and the guide member 22 is slidably arranged in the first guide groove 3321 in the front-to-back direction, and is slidably arranged in the second guide groove 121 in the extension direction of the second guide groove 121. It should be noted that the front-to-back direction refers to when the user faces the range hood, the side of the range hood facing the user is the front side, and the side of the range hood facing away from the user is the rear side.

[0050] When the opening and closing plate 2 is in the open position, the guide member 22 slides with the guide groove 1 1211 and abuts against the front inner wall of the first guide groove 3321; when the opening and closing plate 2 is in the closed position, the guide member 22 slides with the guide groove 2 1212 and abuts against the rear inner wall of the first guide groove 3321.

[0051] When it is necessary to control the opening and closing plate 2 to close the oil smoke intake port 10, the lifting member 332 is controlled to rise, and under the action of the first guide groove 3321 and the second guide groove 1212, the guide member 22 will drive the opening and closing plate 2 to move obliquely upward on the front side of the head frame 1; after the guide member 22 moves into the first guide groove 1211, the guide member 22 will drive the opening and closing plate 2 to rise, thereby moving the opening and closing plate 2 to the opening position for opening the oil smoke intake port 10.

[0052] When it is necessary to control the opening and closing plate 2 to open the oil smoke intake port 10, the lifting member 332 is controlled to descend, and the guide member 22 slides downward along the guide groove 1 1211 under the action of the lifting member 332; when the guide member 22 moves to the lower end of the guide groove 1 1211, it will enter the guide groove 2 1212, and the lifting member 332 continues to descend. Under the action of the guide groove 2 1212 and the first guide groove 3321, the guide member 22 will drive the opening and closing plate 2 to move obliquely downward on the rear side of the head frame 1, so that the opening and closing plate 2 enters the oil smoke intake port 10 to block the oil smoke intake port 10, until the guide member 22 abuts against the lower end inner wall of the guide groove 2 1212 and the rear inner wall of the first guide groove 3321, thereby moving the opening and closing plate 2 to the closed position closing the oil smoke intake port 10.

[0053] Through the cooperation between the guide member 22 and the first guide groove 3321 and the second guide groove 121, when the lifting member 332 is lifted or lowered, the guide member 22 drives the opening and closing plate 2 along the extension direction of the second guide groove 121, so as to realize opening and closing the oil fume inhalation port 10 by using the opening and closing plate 2. During the lifting and lowering process of the opening and closing plate 2, the opening and closing plate 2 moves forward and backward to enter and exit the oil fume inhalation port 10, and the distance of the opening and closing plate 2 moving forward and backward is limited by the length of the first guide groove 3321 along its own extension direction. When the opening and closing plate 2 is in the closed position, the front side surface of the opening and closing plate 2 is flush with the front side surface of the head frame 1.

[0054] Exemplarily, two second guide grooves 121 are provided, and the two second guide grooves 121 are arranged at intervals in the front-to-back direction; a mounting protrusion 3320 is provided on the lifting member 332, and the mounting protrusion 3320 and the tooth portion of the lifting member 332 are arranged on opposite sides of the lifting member 332 in the front-to-back direction; two mounting protrusions 3320 are provided on the same lifting member 332, and the two mounting protrusions 3320 are arranged at intervals in the vertical direction; a first guide groove 3321 is provided on the mounting protrusion 3320, and the two first guide grooves 3321 are staggered in the front-to-back direction. The two second guide grooves 121 and the two first guide grooves 3321 are arranged one-to-one, the guide member 22 and the first guide groove 3321 are arranged one-to-one, and the two second guide grooves 121 are staggered in the vertical direction. By providing two first guide grooves 3321 and two second guide grooves 121, the stability of the opening and closing plate 2 during movement can be improved.

[0055] In some embodiments, Figure 3As shown, the driving unit includes a driving motor 31 fixed to the back side of the head frame 1, a driving shaft 32 extending in the left and right directions of the head frame 1, and two transmission gears 331 respectively fixed to the left and right ends of the driving shaft 32. The driving motor 31 is located between the two transmission gears 331, and the output end of the driving motor 31 is transmission-connected to the middle part of the driving shaft 32. The axial ends of the driving shaft 32 are rotationally connected to the left and right ends of the head frame 1 respectively. The lifting member 332 corresponds one-to-one to the transmission gear 331 and is a rack meshing with the transmission gear 331.

[0056] The driving motor 31 transmits power to the driving shaft 32, and the driving shaft 32 transmits power to two lifting members 332 through two transmission gears 331 at both ends of its axial direction. The lifting and lowering of the two lifting members 332 moves the opening and closing plate 2 to realize opening and closing the oil fume inhalation port 10 by using the opening and closing plate 2; the left and right ends of the driving shaft 32 can be evenly stressed, and the movement of the opening and closing plate 2 can be effectively prevented from being stuck due to uneven stress on the left and right ends of the driving shaft 32, thereby improving the smoothness of the movement of the opening and closing plate 2. Placing the driving motor 31 between the two transmission gears 331 can also shorten the length of the range hood head opening and closing device along the left and right directions of the head frame 1, saving the space required for the installation of the range hood head opening and closing device. In addition, only one driving motor 31 is required, which simplifies the structure of the range hood head opening and closing device and reduces the cost.

[0057] Exemplarily, the transmission gear 331 and the drive shaft 32 are interference fit. It should be noted that in other embodiments, the transmission gear 331 and the drive shaft 32 can also be splined or keyed. It should be noted that the left and right direction refers to the left and right direction of the user when the user faces the range hood.

[0058] In some embodiments, Figure 3 and Figure 5 As shown, the head frame 1 includes a frame body 11, which includes two left and right side plates 113 arranged opposite to each other in the left-right direction, a front side plate 112 and a rear side plate 114 arranged opposite to each other in the front-back direction, and a top plate 115, the left and right ends of the front side plate 112 are respectively connected to the two left and right side plates 113, the left and right ends of the rear side plate 114 are respectively connected to the two left and right side plates 113, the top plate 115 is supported by the left and right side plates 113, the front side plate 112 and the rear side plate 114, and the top plate 115 is simultaneously connected to the left and right side plates 113, the front side plate 112 and the rear side plate 114 to enclose an assembly cavity 111, and the drive motor 31, the first bevel gear 35 and the second bevel gear 36 are all arranged in the assembly cavity 111. The two ends of the drive shaft 32 are rotatably connected to the two left and right side plates 113 through a bearing 34. Exemplarily, the top plate 115 is a glass plate.

[0059] It should be noted that, in other embodiments, a nut-screw structure may be used to replace the above-mentioned rack and pinion structure, which will not be described in detail here.

[0060] In some embodiments, Figure 3 As shown, the drive assembly 3 also includes a first bevel gear 35, and a second bevel gear 36 meshing with the first bevel gear 35, the first bevel gear 35 is fixedly connected to the output shaft of the drive motor 31, the second bevel gear 36 is fixed to the drive shaft 32, and the first bevel gear 35 and the second bevel gear 36 are meshed and connected. The drive motor 31 drives the first bevel gear 35 to rotate, and the first bevel gear 35 transmits power to the drive shaft 32 through the second bevel gear 36, driving the drive shaft 32 to rotate; and the first bevel gear 35 and the second bevel gear 36 are meshed to transmit the power of the drive motor 31 to the drive shaft 32, so that the space above and below the drive shaft 32 can be fully utilized. Exemplarily, the first bevel gear 35 is installed on the drive shaft 32 with an interference fit. It should be noted that in other embodiments, the first bevel gear 35 can also be connected to the drive shaft 32 by splines or flat keys.

[0061] It should be noted that, in other embodiments, a dual-axis drive motor may be used, and the two output shafts of the dual-axis drive motor are coaxially arranged. In this case, the drive shaft 32 is divided into two transmission shafts, and the two output shafts of the dual-axis drive motor are each connected to a transmission shaft, and the two transmission shafts are each connected to the left and right ends of the opening and closing plate 2 through the above-mentioned gear rack structure. A transmission gear may also be fixed to the middle of the drive shaft 32, and a transmission gear may be fixed to the output shaft of the drive motor 31, and the two transmission gears may be meshed and connected. In this case, the output shaft of the drive motor 31 is arranged in parallel with the drive shaft 32.

[0062] In some embodiments, the drive shafts 32 located at the axial ends of the second bevel gear 36 are symmetrically arranged with respect to the second bevel gear 36 , which can effectively ensure that the left and right ends of the opening and closing plate 2 are subjected to balanced forces.

[0063] In some embodiments, Figure 3 As shown, both axial ends of the drive shaft 32 are rotatably connected to the head frame 1 via a bearing 34 , which can not only improve the rotation smoothness of the drive shaft 32 , but also improve the rotation stability and reliability of the drive shaft 32 .

[0064] In some embodiments, Figure 3 and Figure 6 As shown, the lifting member 332 is connected to a slider 333, a guide rail 14 is provided on the head frame 1, one of the guide rail 14 and the slider 333 is provided with a slide groove 141, and the other is slidably arranged in the slide groove 141 along the vertical direction and is limited in the slide groove 141 along the left and right directions. Exemplarily, the slide groove 141 is provided on the guide rail 14.

[0065] By slidingly cooperating between the slider 333 and the slide groove 141 on the guide rail 14 in the vertical direction, the stability of the opening and closing plate 2 during lifting and lowering can be improved; limiting the slider 333 in the slide groove 141 along the left and right directions of the head frame 1 can prevent the slider 333 from escaping from the slide groove 141 along the left and right directions, thereby further improving the stability of the opening and closing plate 2 during lifting and lowering.

[0066] In some embodiments, Figure 6 As shown, the opening end of the slide groove 141 is provided with a limiting groove 142 on both inner side walls, and the slider 333 is provided with a limiting convex portion 3331 corresponding to the limiting groove 142. The limiting convex portion 3331 is slidably arranged in the limiting groove 142 along the vertical direction, and the limiting convex portion 3331 and the limiting groove 142 cooperate to prevent the slider 333 from being separated from the guide rail 14. It should be noted that in other embodiments, the slide groove 141 can also be designed as a dovetail groove, and the slider 333 can be designed as a dovetail block, and the dovetail block and the dovetail groove cooperate to prevent the slider 333 from being separated from the guide rail 14.

[0067] In some embodiments, Figure 3 and Figure 6 As shown, the lifting member 332 is provided with a first weight-reducing hole 3322, and the slider 333 is provided with a second weight-reducing hole 3332. With such a configuration, the lifting member 332 and the slider 333 can be weight-reduced, thereby reducing the power requirement for the drive motor 31. Exemplarily, a plurality of first weight-reducing holes 3322 are provided, and the plurality of first weight-reducing holes 3322 are spaced apart in the vertical direction; a plurality of second weight-reducing holes 3332 are provided, and the plurality of second weight-reducing holes 3332 are spaced apart in the vertical direction.

[0068] In some embodiments, Figure 3 , Figure 7 and Figure 8 As shown, installation cavities 151 are provided on the left and right sides of the head frame 1, and the installation cavities 151 correspond to the lifting members 332 one by one. The lifting members 332 and the transmission gear 331 inside thereof are both arranged in the corresponding installation cavities 151; a maintenance hole 153 connected to the installation cavity 151 is opened on the head frame 1, and the maintenance hole 153 can expose at least part of the lifting member 332 and the transmission gear 331 inside the lifting member 332; the head frame 1 is detachably connected with a maintenance cover 13 to block the maintenance hole 153.

[0069] Specifically, a side frame 15 is provided on the side of each left and right side plate 113 facing away from the other left and right side plate 113, and the above-mentioned installation cavity 151 is provided on the side frame 15. An axial end of the drive shaft 32 passes through one of the left and right side plates 113 and then extends into one installation cavity 151, and is connected to a transmission gear 331. The other axial end of the drive shaft 32 passes through another left and right side plate 113 and then extends into another installation cavity 151, and is connected to another transmission gear 331. A guide rail 14 is fixed on the side of each left and right side plate 113 facing away from the other left and right side plate 113. The maintenance hole 153 is opened on the side walls opposite to the two side frames 15, and the maintenance cover plate 13 can be removed to expose the maintenance hole 153, so that maintenance personnel can repair the lifting member 332 and the transmission gear 331 in the installation cavity 151.

[0070] In some embodiments, Figure 3 , Figure 7 and Figure 8 As shown, an inner flange 1531 is provided at one end of the maintenance hole 153 close to the left and right side panels 113, the inner flange 1531 is located in the maintenance hole 153, the inner flange 1531 is connected to a mounting ear 1532, a snap-in hole 1533 is provided on the inner flange 1531, the maintenance cover 13 is inserted into the maintenance hole 153 and abuts against the inner flange 1531, the snap-in hole 1533 and the mounting ear 1532 are provided on opposite sides of the maintenance hole 153, and a snap-in portion 131 is provided on the maintenance cover 13 for being snapped in the snap-in hole 1533. The clamping portion 131 on one side of the maintenance cover 13 is inserted into the clamping hole 1533, and then the other side of the maintenance cover 13 is pressed toward the side where the left and right side plates 113 are located, so that the maintenance cover 13 abuts against the inner flange 1531, and finally the fasteners are connected to the mounting ears 1532 and the maintenance cover 13, so that the maintenance cover 13 is detachably connected to the side frame 15. Exemplarily, the clamping hole 1533 and the mounting ears 1532 are located on opposite sides of the maintenance hole 153 distributed in the vertical direction.

[0071] In some embodiments, Figure 7 and Fig. 9 As shown, the head frame 1 also includes a mounting member 12 corresponding to the lifting member 332 one by one, the mounting member 12 is fixed to the side frame 15, and the second guide groove 121 is provided on the mounting member 12. Specifically, the side frame 15 is provided with a mounting hole 152 on one side facing the left and right side plates 113, one end of the mounting member 12 is inserted into the mounting hole 152, and the mounting member 12 is glued and fixed to the side frame 15. It is convenient to process the mounting member 12 with the second guide groove 121 separately, which is conducive to reducing the processing cost.

[0072] It should be noted that the mounting member 12 may be interference fit with the mounting hole 152 , the mounting member 12 may be riveted to the mounting hole 152 , or the mounting member 12 may be connected to the frame body 11 via fasteners.

[0073] In some embodiments, Fig. 9 and Fig.10 As shown, a mounting bracket 21 is glued and fixed to the rear side of the opening and closing plate 2, the mounting bracket 21 corresponds to the lifting member 332 one by one, and one end of the guide member 22 is fixed to the mounting bracket 21. Exemplarily, the opening and closing plate 2 is a glass plate, and the mounting bracket 21 is glued and fixed to the rear side of the opening and closing plate 2, which is convenient to install, has low installation cost, and good aesthetics.

[0074] Exemplarily, the guide member 22 is a pin, one end of the guide member 22 is threadedly connected to the mounting bracket 21 , and the other end of the guide member 22 is slidably disposed in the first guide groove 3321 and the second guide groove 121 .

[0075] In some embodiments, Figure 4 and Figure 5 As shown, the frame body 11 further includes a lower side plate 116, the front edge of the lower side plate 116 is connected to the lower edge of the front side plate 112, the left and right edges of the lower side plate 116 are respectively connected to the two left and right side plates 113, the front side plate 112 and the lower side plate 116 are arranged at an angle, the front side plate 112 is vertically arranged and perpendicular to the front-to-back direction, and the lower side plate 116 is parallel to the extension direction of the second guide groove 1212. Such an arrangement is conducive to the guide member 22 smoothly entering and exiting the second guide groove 1212, so that the opening and closing plate 2 can smoothly enter and exit the rear oil smoke intake port 10.

[0076] In some embodiments, Fig. 9 As shown, the range hood head opening and closing device further includes a smoke baffle 4, which is arranged at intervals just below the front side plate 112. The front side plate 112, the smoke baffle 4 and the two side frames 15 surround the above-mentioned range hood intake port 10. For example, the smoke baffle 4 is a glass plate, which is easy to clean and has good aesthetics.

[0077] The opening and closing process of the opening and closing plate 2 of the range hood head opening and closing device provided by the utility model is as follows: the driving motor 31 drives the first bevel gear 35 to drive the second bevel gear 36 to rotate, the driving shaft 32 follows the second bevel gear 36 to rotate, and the driving shaft 32 drives the lifting member 332 to rise and fall through the transmission gear 331.

[0078] When the lifting member 332 rises, the guide member 22, under the action of the first guide groove 3321 and the second guide groove 1212, drives the opening and closing plate 2 to move along the second guide groove 1212 toward the front and upper part of the head frame 1, until the opening and closing plate 2 exits the oil fume intake port 10, and the opening and closing plate 2 moves to the front side of the head frame 1. At this time, the guide member 22 is located at the connecting position of the first guide groove 1211 and the second guide groove 1212, and the opening and closing plate 2 is located directly in front of the oil fume intake port 10; as the lifting member 332 continues to rise, the guide member 22 drives the opening and closing plate 2 to move upward along the guide groove 1 1211 under the action of the first guide groove 1211, until the opening and closing plate 2 is completely moved above the oil fume intake port 10.

[0079] When the lifting member 332 descends, the guide member 22 drives the opening and closing plate 2 to descend along the guide groove 1 1211 under the action of the guide groove 2 1212, until the opening and closing plate 2 descends to the outlet side of the oil smoke intake port 10, at which time the guide member 22 is located at the connecting position of the guide groove 1 1211 and the guide groove 2 1212; as the lifting member 332 continues to descend, the guide member 22 drives the opening and closing plate 2 to move along the guide groove 2 1212 toward the rear and lower part of the head frame 1 under the action of the guide groove 2 1212, so that the opening and closing plate 2 completely enters the opening of the oil smoke intake port 10 and the front side surface of the opening and closing plate 2 is flush with the front side surface of the head frame 1.

[0080] Some embodiments of the utility model also provide an integrated stove, including the above-mentioned range hood. The integrated stove adopts the above-mentioned range hood, and the opening and closing plate 2 has good stability and high reliability when opening and closing the range hood 10; and when the opening and closing plate 2 closes the range hood 10, the range hood has good aesthetics.

[0081] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A range hood head opening and closing device, characterized in that: The invention comprises a head frame (1), an opening and closing plate (2) and a driving assembly (3); the front side of the head frame (1) is provided with a smoke inhalation port (10); the driving assembly (3) comprises a driving unit and a lifting member (332) connected to the head frame (1) in a sliding manner in a vertical direction; the lifting member (332) is connected to the opening and closing plate (2) in a transmission manner, and the driving unit can move and switch the opening and closing plate (2) between an open position and a closed position by driving the lifting member (332) to rise and fall; When the opening and closing plate (2) is located at the open position, the opening and closing plate (2) is located above the oil fume intake port (10) to open the oil fume intake port (10), and the opening and closing plate (2) is located at the front side of the front side of the head frame (1); when the opening and closing plate (2) is located at the closed position, the opening and closing plate (2) is located at the opening of the oil fume intake port (10) to cover the oil fume intake port (10), and the front side of the opening and closing plate (2) is flush with the front side of the head frame (1).

2. The range hood head opening and closing device according to claim 1, characterized in that: A first guide groove (3321) extending in the front-to-back direction is provided on the output end of the lifting member (332); a second guide groove (121) is provided on the head frame (1); the second guide groove (121) comprises a guide groove 1 (1211) extending in the vertical direction, and a guide groove 2 (1212) having one end connected to the guide groove 1 (1211) and the other end extending toward the rear and lower side of the guide groove 1 (1211); the opening and closing plate (2) is connected to a guide member (22); the guide member (22) is slidably provided in the first guide groove (3321) in the front-to-back direction, and is slidably provided in the second guide groove (121) in the extension direction of the second guide groove (121); When the opening and closing plate (2) is in the open position, the guide member (22) slides with the guide groove 1 (1211) and abuts against the front inner wall of the first guide groove (3321); when the opening and closing plate (2) is in the closed position, the guide member (22) slides with the guide groove 2 (1212) and abuts against the rear inner wall of the first guide groove (3321).

3. The range hood head opening and closing device according to claim 2, characterized in that: A mounting bracket (21) is fixed to the rear side of the opening and closing plate (2), the mounting bracket (21) corresponds to the lifting member (332) one by one, and one end of the guide member (22) is fixed to the mounting bracket (21).

4. The range hood head opening and closing device according to claim 2, characterized in that: The head frame (1) comprises a frame body (11), side frames (15) arranged at the left and right ends of the frame body (11) and connected to the frame body (11), and mounting members (12) corresponding one to one with the lifting members (332), wherein the mounting members (12) are glued and fixed to the side frames (15), or are interference-fitted with mounting holes (152) on the side frames (15), or are riveted to the mounting holes (152), or are connected to the side frames (15) via fasteners, and the second guide groove (121) is arranged on the mounting member (12).

5. The range hood head opening and closing device according to claim 1, characterized in that: The driving unit comprises a driving motor (31) fixed to the back side of the head frame (1), a driving shaft (32) extending in the left-right direction of the head frame (1), and two transmission gears (331) respectively fixed to the left and right ends of the driving shaft (32); the driving motor (31) is located between the two transmission gears (331), and the output end of the driving motor (31) is transmission-connected to the middle part of the driving shaft (32); the axial ends of the driving shaft (32) are rotationally connected to the left and right ends of the head frame (1); the lifting member (332) corresponds to the transmission gear (331) one by one and is a rack meshing with the transmission gear (331).

6. The range hood head opening and closing device according to claim 5, characterized in that: The driving assembly (3) further comprises a first bevel gear (35) and a second bevel gear (36) meshing with the first bevel gear (35), wherein the first bevel gear (35) is fixedly connected to the output shaft of the driving motor (31), and the second bevel gear (36) is fixed to the middle part of the driving shaft (32), and the first bevel gear (35) and the second bevel gear (36) are meshingly connected.

7. The range hood head opening and closing device according to claim 5 or 6, characterized in that: The left and right sides of the head frame (1) are both provided with mounting cavities (151), the mounting cavities (151) correspond to the lifting members (332) one by one, and the lifting members (332) and the transmission gears (331) meshing therewith are both arranged in the corresponding mounting cavities (151); The head frame (1) is provided with a maintenance hole (153) connected to the installation cavity (151), and the maintenance hole (153) can expose at least part of the lifting member (332) and the transmission gear (331) meshing with the lifting member (332); the head frame (1) is detachably connected to a maintenance cover plate (13) to block the maintenance hole (153).

8. The range hood head opening and closing device according to any one of claims 1 to 6, characterized in that: The lifting member (332) is connected to a slider (333), and a guide rail (14) is provided on the head frame (1). One of the guide rail (14) and the slider (333) is provided with a slide groove (141), and the other is slidably arranged in the slide groove (141) along the vertical direction and is limited in the slide groove (141) along the left and right direction of the head frame (1).

9. A range hood, characterized in that: It comprises the range hood head opening and closing device according to any one of claims 1 to 8.

10. An integrated stove, characterized in that: Including the range hood as described in claim 9.

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