Range hood

Abstract

The utility model discloses a range hood. The range hood comprises a range hood body and a smoke collecting device. The range hood body is provided with a communication port. The smoke collecting device comprises a universal box body and a replaceable box body, the universal box body is connected with the range hood main body and defines a first smoke collecting channel communicated with the communicating opening, the replaceable box body defines a second smoke collecting channel, the second smoke collecting channel is communicated with the first smoke collecting channel, and a smoke outlet is formed in the position, communicated with the second smoke collecting channel, of the communicating position of the first smoke collecting channel and the second smoke collecting channel. The universal box body and the replaceable box body are detachably connected. According to the technical scheme, the mold utilization rate is increased, and cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of kitchen appliances, and particularly to a range hood. Background Art

[0002] The function of a range hood is to discharge the oil fume gas generated during kitchen cooking outdoors, purify the kitchen air environment, and reduce the harm of oil fume to the human body.

[0003] Nowadays, the forms of range hoods are becoming more and more diverse. To meet the differentiated needs of the market, it is necessary to reduce the product development cycle. The smoke collecting parts of different range hood forms are different, and the molds used are also different. Moreover, the materials of the smoke collecting parts are large, the mold utilization rate for producing different smoke collecting parts is low, and the development and production costs are high. Utility Model Content

[0004] The embodiments of this application provide a range hood that can improve the mold utilization rate and reduce costs.

[0005] The range hood proposed in the embodiments of this application includes:

[0006] A range hood main body having a communication port; and

[0007] A smoke collecting device including a general box body and a replaceable box body. The general box body is connected to the range hood main body and defines a first smoke collecting channel communicating with the communication port. The replaceable box body defines a second smoke collecting channel. The second smoke collecting channel communicates with the first smoke collecting channel, and at the communication part of the first smoke collecting channel and the second smoke collecting channel, the general box body and the replaceable box body are detachably connected.

[0008] In one embodiment, the first smoke collecting channel is provided with a first smoke passing port, the second smoke collecting channel is provided with a second smoke passing port, and the first smoke passing port communicates with the second smoke passing port;

[0009] The general box body is provided with a first connection structure disposed around the first smoke passing port, the replaceable box body is provided with a second connection structure disposed around the second smoke passing port, and the first connection structure and the second connection structure are detachably connected.

[0010] In one embodiment, the general box body includes a first back plate, the first connection structure includes a first back plate connection part connecting the first back plate, the replaceable box body includes a second back plate, the second connection structure includes a second back plate connection part connecting the second back plate, and the first back plate connection part and the second back plate connection part are detachably connected;

[0011] Wherein, at least a part of the first backplate connecting portion is located in the second collecting flue, and has an oil guiding section on the front side of the second backplate. Along the direction away from the outlet of the second collecting flue, the oil guiding section inclines towards the second backplate.

[0012] In one embodiment, the first backplate connecting portion arches forward to form a connecting groove located at the rear side of the first backplate connecting portion, and the second backplate connecting portion is located in the connecting groove;

[0013] The oil guiding section forms one side wall of the connecting groove; and / or, the tail end of the oil guiding section abuts against the second backplate.

[0014] In one embodiment, the first backplate connecting portion further includes:

[0015] A first extension section, which is connected to the first backplate and extends forward relative to the first backplate; and

[0016] A first connecting section, which connects one end of the first extension section away from the first backplate and extends downward. The oil guiding section connects one end of the first connecting section away from the first extension section. The oil guiding section, the first connecting section and the first extension section define the connecting groove, and the second backplate connecting portion is at least connected to the first connecting section.

[0017] In one embodiment, the second backplate connecting portion is connected to the first connecting section by a fastener; and / or,

[0018] The second backplate connecting portion includes a second extension section and a second connecting section. The second extension section is connected to the top end of the second backplate and extends forward relative to the second backplate. The second connecting section connects one end of the second extension section away from the second backplate and extends downward. The second connecting section is connected to the first connecting section, and the second extension section abuts against the first extension section.

[0019] In one embodiment, the general box body includes two first side plates arranged on opposite sides of the first backplate. The first connecting structure includes a first side plate connecting portion connecting at least one of the first side plates. The replaceable box body includes two second side plates arranged on opposite sides of the second backplate. The second connecting structure includes a second side plate connecting portion connecting at least one of the second side plates. The first side plate connecting portion and the second side plate connecting portion are detachably connected.

[0020] In one embodiment, the first side plate connecting portion includes a first positioning portion and a first connecting portion that are spaced apart. The first positioning portion and the first connecting portion are provided on the same first side plate or respectively provided on two first side plates. The second side plate connecting portion includes a second positioning portion and a second connecting portion that are spaced apart. The second positioning portion and the second connecting portion are provided on the same second side plate or respectively provided on two second side plates;

[0021] Wherein, the first positioning portion is in limit fit with the second positioning portion, and the first connecting portion is connected to the second connecting portion.

[0022] In one embodiment, the first positioning portion and the second positioning portion are snap-connected; and / or,

[0023] The first connecting portion and the second connecting portion are connected by fasteners.

[0024] In one embodiment, the first connecting structure and the general box body are an integral structure; and / or,

[0025] The second connecting structure and the replaceable box body are an integral structure.

[0026] In one embodiment, the replaceable box body further includes:

[0027] A replaceable main body, detachably connected to the general box body; and

[0028] A front panel, detachably connected to the replaceable main body, and jointly defining the second smoke collecting flue.

[0029] Based on the above embodiments, the smoke collecting device in the embodiments of the present application is divided into two parts: a general box body and a replaceable box body. The replaceable box body is detachably connected to the general box body. By replacing different replaceable box bodies, different forms of range hoods can be presented, which can meet the differentiated needs of the market. Compared with the form in the related art where the smoke collecting device is an integral whole and is designed, produced and assembled as a whole, various replaceable box bodies in the embodiments of the present application can be connected to the general box body. During development and production, the general box bodies of various different forms of range hoods can share molds, and only different replaceable box bodies need to be designed, thereby improving the mold utilization rate and effectively reducing the development and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0031] Figure 1 It is a schematic structural diagram of an embodiment of the smoke collecting device of this application;

[0032] Figure 2 It is a schematic structural diagram of another embodiment of the smoke collecting device of this application;

[0033] Figure 3 is Figure 1 an exploded structural diagram of the smoke collecting device in [reference] from another perspective;

[0034] Figure 4 It is a schematic sectional structure diagram of an embodiment of the smoke collecting device of this application;

[0035] Figure 5 is Figure 4 an enlarged structural diagram of part A in [reference];

[0036] Figure 6 It is a schematic structural diagram of an embodiment of the replaceable box body of this application;

[0037] Figure 7 is Figure 6 an enlarged structural diagram of part B in [reference];

[0038] Figure 8 It is a schematic structural diagram of an embodiment of the general box body of this application;

[0039] Figure 9 is Figure 8 an enlarged structural diagram of part C in [reference].

[0040] Explanation of the reference numerals in the drawings:

[0041] 100, smoke collecting device; 10, general box body; 11, first smoke collecting channel; 12, first smoke passing opening; 13, first back panel; 14, first side panel; 15, top panel; 20, first connection structure; 21, first back panel connection part; 211, first extension section; 213, first connection section; 215, oil guiding section; 217, connection groove; 23, first side panel connection part; 231, first positioning part; 233, first connection part; 30, replaceable box body; 31, second smoke collecting channel; 32, second smoke passing opening; 33, second back panel; 34, second side panel; 35, front panel; 36, smoking port; 40, second connection structure; 41, second back panel connection part; 411, second extension section; 413, second connection section; 43, second side panel connection part; 431, second positioning part; 433, second connection part; 50, fastener.

[0042] The realization of the purpose, functional features and advantages of this application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0044] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0045] In the description of the present application, it should be understood that terms such as "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, in the description of the present application, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0047] The function of the range hood is to discharge the oil fume gas generated during the kitchen cooking process outdoors, purify the kitchen air environment, and reduce the harm of oil fume to the human body.

[0048] Nowadays, the forms of range hoods are becoming more and more diverse. To meet the needs of market differentiation, it is necessary to reduce the product development cycle. The smoke collection parts of different range hood forms are different, and the molds used are also different. Moreover, the materials of the smoke collection parts are large, the mold utilization rate for producing different smoke collection parts is low, and the development and production costs are high.

[0049] To solve the above problems, an embodiment of the present application provides a range hood, which includes a range hood main body and a smoke collecting device. Optionally, the range hood main body generally presents a box-shaped structure and is installed above the kitchen stove, and the smoke collecting device is arranged below the range hood main body. The range hood main body is provided with a communication port, and the smoke collecting device is provided with a smoke collecting duct. The smoke collecting duct and the internal space of the range hood main body are connected through the communication port. A fan, such as a centrifugal fan, is provided in the range hood main body. When the fan works, it can quickly suck the exhaust gas generated by the stove combustion and the oil fume generated during the cooking process through the smoke collecting duct into the internal space of the range hood main body and discharge it to the outside, thereby reducing pollution, purifying the air, and playing a safety guarantee role in preventing poisoning and explosion.

[0050] Please refer to Figures 1 to 3 , in some embodiments, the smoke collecting device 100 includes a general box body 10 and a replaceable box body 30. The general box body 10 is connected to the range hood main body, and the replaceable box body 30 is connected to the general box body 10. For example, the general box body 10 is connected to the range hood main body, and the replaceable box body 30 is connected to the lower part of the general box body 10. The general box body 10 and the replaceable box body 30 respectively form a part of the smoke collecting duct. Specifically, the general box body 10 defines a first smoke collecting duct 11 communicating with the communication port, and the replaceable box body 30 defines a second smoke collecting duct 31. The second smoke collecting duct 31 communicates with the first smoke collecting duct 11. The replaceable box body 30 is further provided with a smoke suction port 36. When the fan works, the oil fume passes through the second smoke collecting duct 31, the first smoke collecting duct 11, and the communication port in sequence from the smoke suction port 36 and is sucked into the range hood main body.

[0051] In the embodiment of the present application, at the connection between the first smoke collecting duct 11 and the second smoke collecting duct 31, the general box body 10 and the replaceable box body 30 are detachably connected. The detachable connection manner between the general box body 10 and the replaceable box body 30 can be at least one of various connection manners such as snap connection, hook connection, or connection through a fastener 50. The embodiment of the present application does not limit this. For example, the general box body 10 and the replaceable box body 30 are connected by bolts.

[0052] It should be noted that in the embodiment of the present application, the general box body 10 serves as the connection basis for the replaceable box body 30. Correspondingly, the number of the replaceable box bodies 30 can be multiple, and the shapes of the multiple replaceable box bodies 30 can be different. By replacing and connecting the replaceable box body 30, various different-shaped smoke collecting devices 100 can be combined with the general box body 10. For example, the front of one replaceable box body 30 is inclined relative to the direction of gravity, and the front of another replaceable box body 30 is parallel to the direction of gravity. By replacing the above two replaceable box bodies 30, two different-shaped conversions of the smoke collecting device 100 can be realized.

[0053] Understandably, for different replaceable cabinets 30, the detachable connection method between the universal cabinet 10 and it can be different or the same. In one example, the universal cabinet 10 has a variety of connection structures, such as a snap connection structure and holes for connecting fasteners 50, to correspondingly connect the replaceable cabinet 30 using snap connection and the replaceable cabinet 30 using fasteners 50 for connection; in another example, the structural parts of multiple replaceable cabinets 30 used to connect to the universal cabinet 10 are the same, such as all using snap connection methods, to reduce the installation learning cost, lower the installation difficulty, and further improve the mold universality of the universal cabinet 10 and the replaceable cabinet 30.

[0054] Therefore, in the embodiment of the present application, the smoke collecting device 100 is divided into two parts: a universal cabinet 10 and a replaceable cabinet 30. The replaceable cabinet 30 is detachably connected to the universal cabinet 10. By replacing different replaceable cabinets 30, different smoke machine forms can be presented, which can meet the differentiated needs of the market. Compared with the form in the related art where the smoke collecting device 100 is an integral whole and is designed, produced, and assembled as a whole, in the embodiment of the present application, multiple replaceable cabinets 30 can all be connected to the universal cabinet 10. During development and production, the universal cabinets 10 of multiple different forms of smoke machines can share molds, and only different replaceable cabinets 30 need to be designed, thereby improving the mold utilization rate and effectively reducing the development and production costs.

[0055] Combined Figure 3 and Figure 4 , in some embodiments, the first smoke collecting channel 11 is provided with a first smoke passing port 12. The first smoke passing port 12 is located at one end of the first smoke collecting channel 11 away from the communication port. For example, the first smoke passing port 12 is arranged at the bottom of the universal cabinet 10. The second smoke collecting channel 31 is provided with a second smoke passing port 32. The second smoke passing port 32 is arranged at one end of the replaceable cabinet 30 away from the smoke suction port 36. For example, the second smoke passing port 32 is arranged at the top of the replaceable cabinet 30. The first smoke passing port 12 communicates with the second smoke passing port 32 to enable the first smoke collecting channel 11 and the second smoke collecting channel 31 to communicate. Among them, the universal cabinet 10 is provided with a first connection structure 20 arranged around the first smoke passing port 12, and the replaceable cabinet 30 is provided with a second connection structure 40 arranged around the second smoke passing port 32. The first connection structure 20 and the second connection structure 40 are detachably connected, so that the universal cabinet 10 and the replaceable cabinet 30 are detachably connected at the communication part of the first smoke collecting channel 11 and the second smoke collecting channel 31.

[0056] After the smoke machine is installed, it has the height direction, front-back direction, and left-right direction as shown in Figure 3 , and the height direction, front-back direction, and left-right direction are perpendicular to each other in pairs.

[0057] In one embodiment, the general box body 10 includes a top plate 15, a bottom plate, and a general surrounding plate connecting the top plate 15 and the bottom plate. Optionally, an opening is provided on the top plate 15 and is in communication with the communication port, and the bottom plate and the general surrounding plate define the first smoke passage opening 12. The general surrounding plate includes a first back plate 13 provided at the rear side and two first side plates 14 located on the left and right sides of the first back plate 13.

[0058] The replaceable box body 30 includes a replaceable main body and a front panel 35 provided on the front side of the replaceable main body. The front panel 35 is connected to the replaceable main body and together defines a second smoke collecting flue 31 and a second smoke passage opening 32. For ease of assembly, the front panel 35 is detachably connected to the replaceable main body. For example, the replaceable main body includes a second back plate 33 provided at the rear side and two second side plates 34 located on the left and right sides of the second back plate 33, and the left and right sides of the front panel 35 are respectively connected to the two second side plates 34 by means such as bolts. Exemplarily, the front panel 35 includes a baffle plate and a guide plate. The baffle plate is provided in the upper half of the replaceable main body, the guide plate is connected to the bottom of the replaceable main body, and a smoke collecting port is defined between the baffle plate and the guide plate. Optionally, the guide plate is inclined with respect to the height direction to guide the flue gas.

[0059] Combined with Figures 3 to 5 , in one embodiment, the first connection structure 20 includes a first back plate connection portion 21 connecting the first back plate 13, the second connection structure 40 includes a second back plate connection portion 41 connecting the second back plate 33, and the first back plate connection portion 21 and the second back plate connection portion 41 are detachably connected.

[0060] In an alternative structural example, the first back plate connection portion 21 arches forward to form a connection groove 217 located at the rear side of the first back plate connection portion 21, and the second back plate connection portion 41 is located in the connection groove 217. Both the first back plate connection portion 21 and the second back plate connection portion 41 extend along the left - right direction. Accommodating the second back plate connection portion 41 in the connection groove 217 can not only reduce or avoid the protrusions on the back of the general box body 10 and the replaceable box body 30, improve the flatness of the back, but also play a role of pre - positioning, facilitating installation. It can also increase the contact area between the first back plate connection portion 21 and the second back plate connection portion 41, improve the connection stability, and reduce or avoid the outflow of flue gas from the connection between the first back plate connection portion 21 and the second back plate connection portion 41.

[0061] Specifically, please combine with Figure 5, the first backplane connection portion 21 includes a first extension section 211, a first connection section 213, and an oil guiding section 215 that are connected in sequence. Among them, the first extension section 211 is connected to the first backplane 13. For example, the first extension section 211 is connected to the bottom of the first backplane 13 in the height direction and extends forward relative to the first backplane 13. The first connection section 213 is connected to one end of the first extension section 211 away from the first backplane 13 and extends downward. The oil guiding section 215 is connected to one end of the first connection section 213 away from the first extension section 211. Thus, the oil guiding section 215, the first connection section 213, and the first extension section 211 define a connection groove 217.

[0062] It should be noted that in the embodiment of the present application, the oil guiding section 215, the first connection section 213, and the first extension section 211 define the connection groove 217. The oil guiding section 215 constructs a side wall of the connection groove 217. The oil guiding section 215, the first connection section 213, and the first extension section 211 can be an integral structure or can be connected after being separately formed. For example, the oil guiding section 215, the first connection section 213, and the first extension section 211 can be formed by stamping a whole plate, with strong structural integrity and convenient for production and processing. Of course, in some other embodiments, the oil guiding section 215 can also be a plate section separately provided outside the connection groove 217, and the embodiment of the present application does not limit this.

[0063] The second backplane connection portion 41 includes a second extension section 411 and a second connection section 413 that are connected in sequence. The second extension section 411 is connected to the second backplane 33. For example, the second extension section 411 is connected to the top of the second backplane 33 in the height direction and extends forward relative to the second backplane 33. The second connection section 413 is connected to one end of the second extension section 411 away from the second backplane 33 and extends downward. The second connection section 413 is connected to the first connection section 213, and the second extension section 411 abuts against the first extension section 211.

[0064] Optionally, the second extension section 411 and the second connection section 413 can be an integral structure, or the second extension section 411 and the second connection section 413 can be formed separately and then connected by welding or other means. The embodiment of the present application does not limit this.

[0065] The first connection section 213 and the second connection section 413 can be connected by snap connection or by using a fastener 50. For example, the first connection section 213 and the second connection section 413 are connected by bolts to improve the structural reliability. Specifically, the first connection section 213 is provided with a first connection hole, the second connection section 413 is provided with a second connection hole, and the bolt is installed in the first connection hole and the second connection hole. Combined with Figure 5, there is a gap between the second connecting section 413 and the second back plate 33. Thus, during the connection process of the first back plate connecting portion 21 and the second back plate connecting portion 41, first place the second back plate connecting portion 41 into the connection groove 217. The second extension section 411 abuts against the first extension section 211, and the second connecting section 413 and the first connecting section 213 abut against each other. Then, pass the bolt through the first connection hole and the second connection hole in sequence. In this way, only by operating and installing the bolt on the front side of the first back plate connecting portion 21 can the connection between the first back plate connecting portion 21 and the second back plate connecting portion 41 be completed. The operation is simple and the installation efficiency is improved. Moreover, the contact area between the first back plate connecting portion 21 and the second back plate connecting portion 41 is relatively large, effectively preventing oil fume from leaking out through the connection between the first back plate connecting portion 21 and the second back plate connecting portion 41.

[0066] Understandably, the first back plate connecting portion 21 is located below the first back plate 13 and at least partially located in the second smoke collecting channel 31. In some embodiments, the replaceable box body 30 is provided with an oil cup near the second back plate 33. The oil cup is used to collect the oil droplets in the smoke collecting channel for convenient unified treatment. Combining Figure 5 , the oil guiding section 215 is located in the first smoke collecting channel 11 and is inclined towards the second back plate 33 along the direction away from the outlet of the second smoke collecting channel 31. The inclined oil guiding section 215 can, on the one hand, guide the oil fume in the second smoke collecting channel 31 to bypass the connection between the first back plate connecting portion 21 and the second back plate connecting portion 41, further reducing or avoiding the leakage of oil fume; on the other hand, when the oil droplets adhering to the first back plate 13 flow down, the oil guiding section 215 can guide the oil droplets to the oil cup for convenient collection of the oil droplets.

[0067] Furthermore, the end of the oil guiding section 215, that is, the end where the oil guiding section 215 connects to the first connecting section 213 away from the first extension section 211 abuts against the second back plate 33. Thus, the oil guiding section 215 and the second back plate 33 cooperate to further block the oil fume and prevent the leakage of oil fume.

[0068] Combining Figure 4 , in the embodiment of the present application, the first back plate connecting portion 21 and the second back plate connecting portion 41 connect the rear sides of the universal box body 10 and the replaceable box body 30. To improve the connection reliability and the stability of the smoke collecting device 100, in one embodiment, the first connection structure 20 further includes a first side plate connecting portion 23 connecting at least one first side plate 14, and the second connection structure 40 further includes a second side plate connecting portion 43 connecting at least one second side plate 34. The first side plate connecting portion 23 and the second side plate connecting portion 43 are detachably connected so that the first side plate 14 and the second side plate 34 are detachably connected.

[0069] Specifically, please refer to Figures 6 to 9, in a structural form, the first side plate connecting portion 23 includes a first positioning portion 231 and a first connecting portion 233 that are spaced apart. The second side plate connecting portion 43 includes a second positioning portion 431 and a second connecting portion 433 that are spaced apart. The first positioning portion 231 and the first connecting portion 233 are provided on the same first side plate 14 or respectively provided on two first side plates 14. The second positioning portion 431 and the second connecting portion 433 are provided on the same second side plate 34 or respectively provided on two second side plates 34. Among them, the first positioning portion 231 and the second positioning portion 431 are in limit fit, and the first connecting portion 233 is connected to the second connecting portion 433.

[0070] Exemplarily, each first side plate 14 is provided with a first side plate connecting portion 23, and each first side plate connecting portion 23 includes a first positioning portion 231 and a first connecting portion 233. Each second side plate 34 is provided with a second side plate connecting portion 43, and each second side plate connecting portion 43 includes a second positioning portion 431 and a second connecting portion 433. The first positioning portion 231 is provided with an avoidance hole, the second positioning portion 431 is a hook, and the second positioning portion 431 passes through the avoidance hole and hooks the surface of the first positioning portion 231 on the side away from the second side plate 34. The first connecting portion 233 and the second connecting portion 433 are connected by a fastener 50. For example, both the first connecting portion 233 and the second connecting portion 433 are in the form of plates, and the two are connected by bolts. In this way, when connecting the first side plate connecting portion 23 and the second side plate connecting portion 43, first make the first positioning portion 231 and the second positioning portion 431 in limit fit for quick pre-positioning and fixing, which is convenient for the fixed connection of the first connecting portion 233 and the second connecting portion 433, thus facilitating assembly and improving the assembly efficiency.

[0071] Among them, the matching form of the first positioning portion 231 and the second positioning portion 431 can also be that the first positioning portion 231 is a hook, the second positioning portion 431 is provided with an avoidance hole, and the first positioning portion 231 hooks the surface of the second positioning portion 431 on the side away from the first side plate 14. Or, the first positioning portion 231 and the second positioning portion 431 can also be connected by other snap connection methods, and the first connecting portion 233 and the second connecting portion 433 can also be connected by other methods such as welding and riveting. The embodiments of the present application do not limit this.

[0072] In other exemplary aspects, the first positioning portion 231 is provided on one of the first side plates 14, and the first connecting portion 233 is provided on the other first side plate 14. Correspondingly, the second positioning portion 431 is provided on one of the second side plates 34, and the second connecting portion 433 is provided on the second side plate 34. After the first positioning portion 231 and the second positioning portion 431 are connected in a limit manner, the first connecting portion 233 and the second connecting portion 433 are connected at the other pair of first side plates 14 and second side plates 34, reducing the connection steps and simplifying the structure.

[0073] Combined with Figure 7 , in one embodiment, the second side plate 34 includes two plate segments connected in sequence in the front-back direction, and the two plate segments may be arranged at an angle to present a different shape from the replaceable box body 30 in Figure 1 . In this embodiment, the two parts of the second connecting portion 433 are respectively arranged on the two plate segments of the second side plate 34, and the first connecting portion 233 also includes two parts to be connected to the second connecting portion 433 in one-to-one correspondence, thereby improving the connection reliability.

[0074] The above is a specific explanation of the detachable connection between the general box body 10 and the replaceable box body 30 of the present application through the first connection structure 20 and the second connection structure 40. Specifically, the first connection structure 20 and the general box body 10 are of an integral structure, with good structural integrity and convenient for processing; the second connection structure 40 can also be of an integral structure with the replaceable box body 30, further reducing the processing and production difficulty and improving the production efficiency. Of course, in other embodiments of the present application, the first connection structure 20 can also be connected to the general box body 10 by welding or other means after forming, and the second connection structure 40 can also be connected to the replaceable box body 30 by welding or other means after forming, which will not be elaborated here.

[0075] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar parts; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as a limitation of the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0076] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A range hood, characterized in that: include: The range hood body has a communication port; and The smoke collecting device comprises a universal box and a replaceable box, wherein the universal box is connected to the range hood main body and defines a first smoke collecting duct connected to the connecting port, and the replaceable box defines a second smoke collecting duct, the second smoke collecting duct is connected to the first smoke collecting duct, and the universal box and the replaceable box are detachably connected at the connecting point between the first smoke collecting duct and the second smoke collecting duct.

2. The range hood according to claim 1, characterized in that: The first smoke collecting duct is provided with a first smoke outlet, the second smoke collecting duct is provided with a second smoke outlet, and the first smoke outlet is connected to the second smoke outlet; The universal box body is provided with a first connection structure arranged around the first smoke outlet, and the replaceable box body is provided with a second connection structure arranged around the second smoke outlet, and the first connection structure and the second connection structure are detachably connected.

3. The range hood according to claim 2, characterized in that: The universal box includes a first back plate, the first connection structure includes a first back plate connection portion connected to the first back plate, the replaceable box includes a second back plate, the second connection structure includes a second back plate connection portion connected to the second back plate, and the first back plate connection portion and the second back plate connection portion are detachably connected; At least part of the first back plate connection portion is located in the second smoke collecting duct, and has an oil guide section located at the front side of the second back plate, and the oil guide section is inclined toward the second back plate in a direction away from the outlet of the second smoke collecting duct.

4. The range hood as claimed in claim 3, characterized in that: The first backplane connecting portion is arched forward to form a connecting groove located at the rear side of the first backplane connecting portion, and the second backplane connecting portion is located in the connecting groove; The oil guiding section forms a side wall of the connecting groove; and / or the tail end of the oil guiding section abuts against the second back plate.

5. The range hood as claimed in claim 4, characterized in that: The first backplane connecting portion further includes: A first extension section connected to the first back plate and extending toward the front side relative to the first back plate; and A first connecting section connects one end of the first extension section away from the first back plate and extends downward, the oil guiding section connects one end of the first connecting section away from the first extension section, the oil guiding section, the first connecting section and the first extension section define the connecting groove, and the second back plate connecting portion is at least connected to the first connecting section.

6. The range hood as claimed in claim 5, characterized in that: The second backplane connecting portion is connected to the first connecting section via a fastener; and / or, The second backplane connecting portion includes a second extension section and a second connecting section, the second extension section is connected to the top end of the second backplane and extends forward relative to the second backplane, the second connecting section connects an end of the second extension section away from the second backplane and extends downward, the second connecting section is connected to the first connecting section, and the second extension section abuts against the first extension section.

7. The range hood according to claim 3, characterized in that: The universal box body includes two first side panels arranged on opposite sides of the first back panel, the first connecting structure includes a first side panel connecting portion connecting at least one of the first side panels, the replaceable box body includes two second side panels arranged on opposite sides of the second back panel, the second connecting structure includes a second side panel connecting portion connecting at least one of the second side panels, and the first side panel connecting portion and the second side panel connecting portion are detachably connected.

8. The range hood according to claim 7, characterized in that: The first side panel connecting portion includes a first positioning portion and a first connecting portion which are arranged at intervals, the first positioning portion and the first connecting portion are arranged on the same first side panel or are respectively arranged on two first side panels, and the second side panel connecting portion includes a second positioning portion and a second connecting portion which are arranged at intervals, the second positioning portion and the second connecting portion are arranged on the same second side panel or are respectively arranged on two second side panels; Wherein, the first positioning portion and the second positioning portion are limitedly matched, and the first connecting portion and the second connecting portion are connected.

9. The range hood according to claim 8, characterized in that: The first positioning portion and the second positioning portion are snap-connected; and / or, The first connection portion and the second connection portion are connected via a fastener.

10. The range hood according to any one of claims 2 to 9, characterized in that: The first connection structure and the universal box are an integral structure; and / or, The second connecting structure and the replaceable box are an integral structure.

11. The range hood according to any one of claims 1 to 9, characterized in that: The replaceable housing also includes: A replaceable main body detachably connected to the universal box; and The front panel is detachably connected to the replaceable main body and together defines the second smoke collecting duct.

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