Hood structure for range hood and range hood

Abstract

The box structure for range hood and the range hood, the box structure comprises: fan box main body, the inside hollow forms the bottom and the front side open cavity, so that the fan system for range hood is arranged in it, the top wall of the cavity is equipped with the exhaust port for being connected with the air outlet of the fan system, the left and right side edges of the front side open cavity are all folded to the back and extend to the cavity interior to form the folded edge; the back of the cover plate is attached to the front side of the two folded edges to close the front side opening; the first stop piece is arranged on the back of the cover plate and is adjacent to or attached to the back of the two folded edges to block the cover plate from separating from the folded edge; the second stop piece is arranged on the back of the cover plate, above the first stop piece, and is supported on the top wall of the cavity and connected between the top wall of the cavity in a detachable manner; meanwhile, the first stop piece can be moved under the action of the actuator to release the constraint on the two folded edges. The application is convenient to disassemble and can ensure the structural stability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of kitchen appliances, and particularly relates to a box structure for an extractor hood and the extractor hood. BACKGROUND

[0002] In order to facilitate the maintenance of the fan system, the existing box structure for the extractor hood generally includes a fan box main body in which the fan system is arranged, and a cover plate arranged on the front side opening of the fan box main body. The fixing mode of the cover plate generally adopts exposed screw connection, that is, the user can see the screws on the front side of the extractor hood, which affects the delicacy of the whole machine.

[0003] In order to improve the delicacy, the cover plate is fixed by hooks, buckles and the like. For example, the Chinese utility model patent "Extractor hood convenient to maintain" (authorized publication number CN215523441U) with application number CN202121433488.9, which includes a smoke collecting hood, a wind cabinet arranged on the smoke collecting hood, and a fan arranged in the wind cabinet. The wind cabinet includes a main body connected to the smoke collecting hood, a top plate arranged on the upper part of the main body, and a baffle arranged on the front part of the main body. The front part of the wind cabinet is provided with an opening part opposite to the fan and used for the maintenance of the fan, and the baffle covers the front part of the opening part. The rear surface of the baffle is provided with a connecting frame, the connecting frame is detachably arranged on the front part of the main body through a plug-in structure, and the upper part of the connecting frame is detachably arranged on the top plate through a fastener. The fan can be maintained after the baffle is removed.

[0004] The plug-in structure includes an insertion piece located on the outer side edge of the connecting frame and extending backward, and an insertion slot arranged on the front part of the wind cabinet and opposite to the insertion piece and located on the side part of the opening part, and the insertion piece is arranged in the insertion slot. When the plug-in structure is used to fix the cover plate, the following technical problems exist:

[0005] 1. The plug-in structure provides insufficient normal pressure, resulting in unstable overall structure, poor sealing performance of the box, and easy oil penetration at the gap.

[0006] 2. When installing the cover plate, the insertion piece needs to be aligned with the insertion slot and then inserted. When removing the cover plate, if the insertion piece and the insertion slot are tightly plugged, it is difficult to remove the cover plate, so that the cover plate is inconvenient to disassemble and assemble. SUMMARY

[0007] The first technical problem to be solved by the present application is to provide a box structure for an extractor hood which is convenient to disassemble and assemble and can ensure the stability of the structure.

[0008] The second technical problem to be solved by the present application is to provide a box structure for an extractor hood to improve the sealing performance of the box.

[0009] The third technical problem to be solved by the present application is to provide a range hood with the above-mentioned cabinet structure.

[0010] The technical scheme adopted by the present application to solve the first technical problem is as follows: a cabinet structure for a range hood, comprising:

[0011] a fan cabinet main body, which is internally hollow to form a cavity with a bottom and a front opening, so that a fan system for the range hood is arranged in the cavity, a smoke exhaust port for communicating with an air outlet of the fan system is arranged on a top wall of the cavity, and left and right side edges of the front opening of the cavity are each folded rearward to extend toward the inside of the cavity to form a folded edge;

[0012] a cover plate, the back surface of which is attached to the front side of the two folded edges to close the front opening;

[0013] characterized in that it further comprises:

[0014] a first blocking piece, which is arranged on the back surface of the cover plate and adjacent to or attached to the rear side of the two folded edges to block the cover plate from being detached from the folded edges;

[0015] a second blocking piece, which is arranged on the back surface of the cover plate above the first blocking piece and supported on the top wall of the cavity in a detachable manner;

[0016] Meanwhile, the first blocking piece can be moved to release the constraint on the two folded edges under the action of the actuating piece.

[0017] In this way, when the cover plate needs to be removed and the front opening needs to be opened, the connection between the second blocking piece and the bottom wall of the cavity can be released first, and then the first blocking piece can be moved to release the constraint on the two folded edges by the actuating piece, so that the cover plate can be detached from the fan cabinet main body, facilitating operation. Meanwhile, the cooperation between the first blocking piece and the two folded edges, the cooperation between the second blocking piece and the top wall of the cavity, and the cooperation between the back surface of the cover plate and the two folded edges make the overall structure of the assembled cabinet structure more stable; and after assembly, the first blocking piece and the second blocking piece are both located on the back surface of the cover plate, which is invisible to the naked eye of a user in front of the range hood.

[0018] Preferably, the first blocking piece has two, one on the left and one on the right, arranged adjacent to or attached to the rear side of the respective folded edge; and the two first blocking pieces can be relatively close to release the constraint on the respective folded edge under the action of the actuating piece.

[0019] Preferably, the two first blocking pieces are arranged on the back surface of the cover plate in a manner that they can move in the left-right direction;

[0020] The actuating member is arranged to drive the two first stoppers away from each other and adjacent to or attached to the back side of the respective corresponding folding edge when the second stopper on the cover plate is supported on the top wall of the accommodating cavity, and drive the two first stoppers to relatively close to each other and release the constraint on the two folding edges when the cover plate moves upward and the second stopper on the cover plate is separated from the top wall of the accommodating cavity.

[0021] The actuating member of the present application can use existing electric push rod driving mechanism, in order to simplify the structure, reduce the cost, and further facilitate disassembly and assembly, preferably, the actuating member comprises:

[0022] The movable member is arranged between the two first stoppers on the back of the cover plate in a manner capable of moving up and down;

[0023] The transmission member is connected between the movable member and the two first stoppers to convert the up and down movement of the movable member into the left and right movement of the two first stoppers, and when the movable member moves upward to the first position, the two first stoppers move away from each other under the action of the transmission member, and when the movable member moves downward to the second position, the two first stoppers relatively close to each other under the action of the transmission member;

[0024] The elastic member acts on the movable member or the transmission member to make the movable member always have a tendency to move downward to the second position;

[0025] Meanwhile, the front side opening of the accommodating cavity has a lower side edge arranged to support the movable member below and drive the movable member to move upward to the first position against the elastic force of the elastic member when the cover plate moves downward.

[0026] In this way, the actuating member of the present application can automatically adjust the position of the first stopper according to the position of the cover plate in the up and down direction. That is, when the cover plate is installed in place and the second stopper on the back of the cover plate is supported on the top wall of the accommodating cavity, the actuating member automatically drives the two first stoppers away from each other and adjacent to or attached to the back side of the respective corresponding folding edge; after the cover plate moves upward, the actuating member automatically drives the two first stoppers to relatively close to each other and releases the constraint on the two folding edges, so that the disassembly and assembly of the cover plate can be quickly completed.

[0027] Preferably, the transmission member is in the form of a rod, the first end of which is rotatably connected to the corresponding first stopper with the rotation axis extending front and back, and the second end of which is rotatably connected to the movable member with the rotation axis extending front and back.

[0028] Preferably, the elastic member is a vertically arranged spring, the upper end of which is constrained to the second end of the transmission member, and the lower end of which is fixed relative to the cover plate.

[0029] Because of the special use environment of the range hood, oil stains are generally attached to the inside of the box structure. When the cover plate is removed, the oil stains attached to the back of the cover plate will slide down along the cover plate, thereby soiling the kitchen countertop and the floor. Therefore, in order to solve the problem of oil stains dripping when the cover plate is removed, preferably, the movable piece is in the form of a vertical plate, and the front side of the vertical plate is attached to the back of the cover plate.

[0030] At the same time, the lower edge of the vertical plate is also provided with left and right extending oil receiving strips, which are attached to the back of the cover plate, and the oil receiving strips are provided with oil leakage holes extending upward and downward.

[0031] Further comprising a plug movably arranged on the oil leakage hole, and when the movable piece moves to the first position, the plug opens the oil leakage hole, and when the movable piece moves to the second position, the plug closes the oil leakage hole.

[0032] In this way, the oil receiving strip can receive oil stains, and when the cover plate is assembled at the front side opening of the fan box main body, the oil leakage holes on the oil receiving strip are opened, so that the oil stains can flow downward through the oil leakage holes and be collected into the oil cup of the range hood. Conversely, when the cover plate is separated from the fan box main body, the oil leakage holes are closed by the plug, and the oil stains collected on the oil receiving strip will not flow down, thereby avoiding the oil stains from dripping onto the kitchen countertop and the floor when the cover plate is removed.

[0033] Further, the plug is connected to the second end of the transmission piece, so as to move together with the transmission piece. Thus, the position of the plug can be controlled by the movement of the transmission piece, without the need to additionally provide other power mechanisms.

[0034] Further, the two ends of the oil receiving strip are respectively relatively close to the left and right side edges of the cover plate.

[0035] In the above-mentioned schemes, preferably, the second blocking piece is connected with the top wall of the container cavity through a fastener, the fastener is connected to the top wall of the container cavity after penetrating downward through the connecting hole extending upward and downward on the second blocking piece, and the second blocking piece is pressed on the top wall of the container cavity.

[0036] Preferably, the fastener is a screw, and the top wall of the container cavity is provided with a threaded hole corresponding to the position of the connecting hole.

[0037] In order to further solve the above-mentioned second technical problem, preferably, the left and right side edges of the cover plate are extended rearward to form flanges, and the two flanges are wrapped around the left and right sides of the fan box main body.

[0038] Preferably, the first blocking piece is a vertically extending plate-shaped body, and the front side of the first blocking piece is used to attach to the back of the folded edge. The first blocking piece in the form of a plate-shaped body can improve the sealing performance of the box structure.

[0039] More preferably, the folded edge on the left side of the front opening of the cavity is inclined forward from left to right, and the folded edge on the right side of the front opening of the cavity is inclined forward from right to left.

[0040] The first portion of the front side panel of each first stop is attached to the back of the cover plate in a manner that allows it to move left and right along the back of the cover plate, and the second portion is an inclined surface that is consistent with the inclination direction of its corresponding folded edge.

[0041] This makes it easier for the first stop to move to a position that fits against the back of the folded edge.

[0042] The technical solution adopted by the present invention to solve the third technical problem mentioned above is: a range hood, characterized in that it has the housing structure for a range hood as described above.

[0043] Compared with the prior art, the advantages of this invention are as follows: By setting a first stop and a second stop on the back of the cover plate, when it is necessary to remove the cover plate and open the front opening, the connection between the second stop and the bottom wall of the cavity can be released first. Then, the first stop can be moved by the actuator to release the constraint on the two folded edges, thereby allowing the cover plate to be detached from the main body of the fan box, which facilitates operation. At the same time, the cooperation between the first stop and the two folded edges, the cooperation between the second stop and the top wall of the cavity, and the cooperation between the back of the cover plate and the two folded edges make the overall structure of the assembled box relatively stable. Furthermore, after assembly, the first stop and the second stop are both located on the back of the cover plate, which is invisible to the naked eye of the user in front of the range hood. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of the present invention when the cover plate is removed;

[0045] Figure 2 This is a structural schematic diagram of an embodiment of the present invention from another perspective when the cover plate is removed;

[0046] Figure 3 This is a structural schematic diagram of an embodiment of the present invention from another perspective when the cover plate is removed;

[0047] Figure 4 for Figure 1 Sectional view along the middle AA direction;

[0048] Figure 5 for Figure 1 Sectional view along the BB direction;

[0049] Figure 6 for Figure 1 3D exploded view of the structure;

[0050] Figure 7 for Figure 1 Schematic diagram of the middle cover plate;

[0051] Figure 8 This is a schematic diagram of the structure of the cover plate in place according to an embodiment of the present invention;

[0052] Figure 9 This is a structural schematic diagram of an embodiment of the present invention from another perspective when the cover plate is assembled in place;

[0053] Figure 10 This is a structural schematic diagram of the present invention from another perspective when the cover plate is assembled in place;

[0054] Figure 11 for Figure 8 A cross-sectional view along the CC direction;

[0055] Figure 12 for Figure 8 Sectional view along the DD direction;

[0056] Figure 13 for Figure 8 A schematic diagram of the structure of the middle cover plate. Detailed Implementation

[0057] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0058] like Figures 1 to 13 As shown, this is a preferred embodiment of the range hood housing structure and range hood of the present invention. The range hood includes a smoke collection hood, a housing structure, and a fan system 2.

[0059] The smoke hood is existing technology (not shown in the figure), and its interior is hollow to form a smoke collection chamber with a smoke inlet and a smoke outlet, with the smoke outlet located at the top of the smoke collection chamber.

[0060] The enclosure structure is located on top of the smoke hood and includes a fan box body 1, a cover plate 3, a first baffle 4, a second baffle 5, an actuator 6, and a plug 7.

[0061] The interior of the fan housing body 1 is hollow, forming a cavity 10 with an open bottom and front side. The bottom opening of the cavity 10 is opposite to and connected to the smoke outlet on the smoke hood. A smoke exhaust port 110 is provided on the top wall 11 of the cavity 10. The left and right edges of the front opening of the cavity 10 are both folded backward and extend into the cavity 10 to form folded edges 12.

[0062] The back of the cover plate 3 is attached to the front of the two folded edges 12 to close the front opening of the cavity 10. Both sides of the cover plate 3 extend rearward to form flanges 31, which wrap around the left and right sides of the fan housing body 1. Furthermore, under external force, the cover plate 3 can move up and down relative to the fan housing body 1.

[0063] The first stopper 4 is arranged on the back of the cover plate 3 and is attached to the back of the corresponding folding edge 12 to prevent the cover plate 3 from moving forward and separating from the folding edge 12. The two first stoppers 4 can move left and right under the action of the actuator 6 to approach each other and release the constraint on the corresponding folding edge 12. Specifically, each first stopper 4 is a vertically extending plate body, and the front side of the plate body is used to attach to the back of the corresponding folding edge 12. In order to enable the first stopper 4 to move left and right and then be attached to the back of the corresponding folding edge 12, the folding edge on the left side of the front opening of the cavity 10 is inclined forward from left to right, the folding edge on the right side of the front opening of the cavity 10 is inclined forward from right to left, the first part 41 of the front side of each first stopper 4 is attached to the back of the cover plate 3 in a manner that can move left and right along the back of the cover plate 3, the second part 42 is a slope that is consistent with the inclination direction of the corresponding folding edge 12 (i.e., the second part 42 is spaced relative to the back of the cover plate 3 to enable the corresponding folding edge 12 to be inserted when the first stopper moves), and the first part 41 and the second part 42 are connected by a step. For details, see Figure 4 、 7 , 11, 13. The cooperation of the first stopper 4, the cover plate, and the folding edge in the embodiment can improve the stability and sealing performance of the overall structure.

[0064] The second stopper 5 is arranged above the first stopper 4 on the back of the cover plate 3 and is supported on the top wall 11 of the cavity 10 in a detachable manner to prevent the cover plate 3 from moving downward. Specifically, the second stopper 5 is a left and right extending stop plate connected between the top wall 11 of the cavity 10 by a screw, the screw is screwed into the threaded hole 111 on the top wall 11 of the cavity 10 after passing through the upper and lower through holes 51 on the second stopper 5, and the second stopper 5 is pressed against the top wall 11 of the cavity 10. When the cover plate needs to be removed, the screw is unscrewed.

[0065] In the embodiment, the actuator 6 is arranged to drive the two first stoppers 4 to move away from each other and be adjacent to or attached to the back of the corresponding folding edge 12 when the second stopper 5 on the cover plate 3 is supported on the top wall 11 of the cavity 10, and the actuator 6 is arranged to drive the two first stoppers 4 to approach each other and release the constraint on the two folding edges 12 when the cover plate 3 moves upward and the second stopper 5 on the cover plate 3 separates from the top wall 11 of the cavity 10.

[0066] Specifically, the actuator 6 includes a movable part 61, a transmission part 62, and an elastic part 63.

[0067] The movable member 61 is in the shape of a vertical plate, the front side of the vertical plate is attached to the back of the cover plate 3, and the movable member 61 is arranged between the two first stop members 4 in a manner that the movable member 61 can move up and down. Meanwhile, the lower edge of the vertical plate is provided with an oil receiving strip 611 extending left and right (the left and right ends of the oil receiving strip 611 are respectively close to the left and right sides of the cover plate 3), the oil receiving strip 611 is attached to the back of the cover plate 3, and an oil receiving groove is formed between the oil receiving strip 611 and the back of the cover plate 3, the oil receiving groove is open upward, and the oil receiving strip 611 is provided with two oil leakage holes 612 extending up and down and spaced apart in the left and right directions, so that the oil in the oil receiving groove can pass through the oil leakage holes 612.

[0068] The transmission member 62 connects the movable member 61 and the two first stop members 4, so as to convert the up and down movement of the movable member 61 into the left and right movement of the two first stop members 4. When the movable member 61 moves upward to the first position, the two first stop members 4 are away from each other under the action of the transmission member 62. When the movable member 61 moves downward to the second position, the two first stop members 4 are close to each other under the action of the transmission member 62. Specifically, the transmission member 62 has at least two, each transmission member is in the shape of a rod, the first end of each transmission member is rotatably connected to the corresponding first stop member 4 and the rotation axis of the first end extends forward and backward, and the second end of each transmission member is rotatably connected to the movable member 61 and the rotation axis of the second end extends forward and backward. In the embodiment, the two transmission members 62 arranged left and right form a group, there are three groups, and the groups are arranged in the up and down direction and spaced apart.

[0069] The elastic member 63 is a spring arranged vertically, the upper end of the spring is constrained to the second end of the transmission member 62, and the lower end of the spring is fixed relative to the cover plate 3, so that the movable member 61 always has a tendency to move downward to the second position.

[0070] Meanwhile, the front side of the container cavity 10 has a lower side edge 13 extending left and right, and the lower side edge 13 is arranged to support under the movable member 61 when the cover plate 3 moves downward, so as to drive the movable member 61 to move upward to the first position against the elastic force of the elastic member 63.

[0071] The above-mentioned plug 7 has two, which are connected to the second ends of the transmission members 62 located at the lowermost position, so as to move with the transmission members 62. Specifically, the second end of the transmission member 62 extends away from the first end to form an extension section, and the plug 7 is located at the end of the extension section. When the movable member 61 moves to the first position, the plug 7 opens the oil leakage hole 612, please refer to Figures 10 to 13 ; when the movable member 61 moves to the second position, the plug 7 closes the oil leakage hole 612, please refer to Figure 3 、 4 、5、7.

[0072] Thus, the actuating member 6 of the present embodiment can automatically adjust the position of the first stopper 4 according to the position of the cover plate 3 in the up-down direction. When the cover plate 3 needs to be installed, the cover plate 3 is covered on the front side of the fan box body 1, and then the cover plate 3 is moved downward. At this time, the movable member 61 on the back of the cover plate 3 is moved upward to the first position against the elastic force of the elastic member 63 under the action of the lower side edge 13 of the accommodating cavity 10. During the upward movement of the movable member 61, the two first stoppers are driven by the transmission member 62 to move away from each other in the left-right direction and are attached to the back side of the respective corresponding folded edges. Until the cover plate 3 is installed in place downward, the second stopper 4 on the back of the cover plate 3 is supported on the top wall 11 of the accommodating cavity, which can be achieved by screwing the second stopper 4 and the top wall 11 of the accommodating cavity. At the same time, during the upward movement of the movable member, the transmission member 62 can drive the plug 7 to move and open the oil leakage hole 612. At this time, the oil in the box structure can enter the smoke collecting cover through the oil leakage hole 612, and then be collected into the oil cup below the smoke collecting cover.

[0073] When the cover plate 3 needs to be removed, the screws between the second stopper 4 and the top wall 11 of the accommodating cavity are unscrewed, and then the cover plate 3 is moved upward. At this time, the movable member 61 on the back of the cover plate 3 is moved downward to the second position under the action of the elastic member 63, and during the downward movement of the movable member 61, the two first stoppers are driven by the transmission member 62 to move relatively close to each other in the left-right direction, thereby releasing the constraint on the two folded edges. The cover plate 3 can be moved forward and removed. During the downward movement of the movable member 61, the transmission member 62 can drive the plug 7 to move and close the oil leakage hole 612, so as to avoid the oil on the oil receiving strip from dripping down from the oil leakage hole 612.

[0074] The above-mentioned fan system 2 is a centrifugal fan which is arranged in the box structure, and the air outlet of the fan system 2 corresponds to the smoke outlet 110 on the top wall of the accommodating cavity. The fan system is used to drive the oil smoke flow to enter the smoke collecting cover through the smoke inlet and to be output through the smoke outlet 110.

[0075] In the specification and claims of the present application, terms indicating directions, such as "front", "back", "up", "down", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present application, but these terms are used herein only for the purpose of convenience of description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms indicating directions are only for illustration and should not be considered as limitation, for example, "up" and "down" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0076] In the specification and claims of the present application, the term "vertical" is used, which means substantially in the up-down direction, and is not limited to only the vertical direction, but can also be slightly inclined relative to the vertical direction.

Claims

1. A housing structure for a range hood, comprising: The main body of the fan box (1) is hollow inside, forming a cavity (10) with an open bottom and front, in which the fan system (2) for the range hood is housed. The top wall (11) of the cavity (10) is provided with a smoke exhaust port (110) for communicating with the air outlet of the fan system (2). The left and right edges of the front opening of the cavity (10) are folded back and extend toward the interior of the cavity (10) to form folded edges (12). The cover plate (3) is attached to the front side of the two folded edges (12) to close the front opening; Its characteristic is that it also includes: The first stop (4) is provided on the back of the cover plate (3) and is adjacent to or attached to the back side of the two folded edges (12) to prevent the cover plate (3) from moving forward away from the folded edges (12). The second stop (5) is located on the back of the cover plate (3), above the first stop (4), and is supported on the top wall (11) of the cavity (10) and is detachably connected to the top wall (11) of the cavity (10). At the same time, the first stop (4) can move under the action of the actuator (6) to release the constraint on the two folded edges (12); There are two first stops (4), one on the left and one on the right, and they are respectively adjacent to or attached to the rear side of their respective folded edges (12); and the two first stops (4) can move closer to each other under the action of the actuator (6) to release the constraint on their respective folded edges (12). Two first stops (4) are provided on the back of the cover plate (3) in a manner that allows them to move in the left and right direction; When the actuator (6) is arranged such that the second stop (5) on the cover plate (3) is supported on the top wall (11) of the cavity (10), the actuator (6) drives the two first stops (4) to move away from each other and to be adjacent to or attached to the rear side of their respective folded edges (12). When the cover plate (3) moves upward and the second stop (5) on the cover plate (3) is removed from the top wall (11) of the cavity (10), the actuator (6) drives the two first stops (4) to move closer to each other and releases the constraint on the two folded edges (12). The actuator (6) includes: The movable part (61) is disposed on the back of the cover plate (3) and between the two first stops (4) in a way that allows it to move up and down; The transmission component (62) connects the movable component (61) and the two first stops (4) to convert the up-and-down movement force of the movable component (61) into the left-and-right movement of the two first stops (4). When the movable component (61) moves upward to the first position, the two first stops (4) move away from each other under the action of the transmission component (62). When the movable component (61) moves downward to the second position, the two first stops (4) move closer to each other under the action of the transmission component (62). An elastic element (63) acts on the movable element (61) or the transmission element (62) to make the movable element (61) always tend to move downward to the second position; Meanwhile, the front opening of the cavity (10) has a lower edge (13), which is arranged to support the movable member (61) below when the cover plate (3) moves downward, thereby driving the movable member (61) to move upward to a first position against the elastic force of the elastic member (63).

2. The housing structure for a range hood according to claim 1, characterized in that: The transmission component (62) is rod-shaped, with its first end rotatably connected to the corresponding first stop (4) and its rotation axis extending back and forth, and its second end rotatably connected to the movable component (61) and its rotation axis extending back and forth.

3. The housing structure for a range hood according to claim 2, characterized in that: The elastic element (63) is a vertically arranged spring. The upper end of the spring is constrained to the second end of the transmission element (62), and the lower end of the spring is fixed relative to the cover plate (3).

4. The housing structure for a range hood according to claim 2, characterized in that: The movable part (61) is in the shape of a vertical plate, and the front side of the vertical plate is attached to the back of the cover plate (3); Meanwhile, the lower edge of the upright plate is also provided with an oil receiving strip (611) extending to the left and right. The oil receiving strip (611) is attached to the back of the cover plate (3), and the oil receiving strip (611) is provided with an oil leakage hole (612) that runs through the top and bottom. It also includes a plug (7) that is movably disposed on the oil leakage hole (612). When the movable part (61) moves to the first position, the plug (7) opens the oil leakage hole (612) and when the movable part (61) moves to the second position, the plug (7) closes the oil leakage hole (612).

5. The housing structure for a range hood according to claim 4, characterized in that: The plug (7) is connected to the second end of the transmission member (62) so that it can move together with the transmission member (62).

6. The housing structure for a range hood according to claim 4, characterized in that: The two ends of the oil receiving strip (611) are respectively close to the left and right sides of the cover plate (3).

7. The housing structure for a range hood according to any one of claims 1 to 6, characterized in that: The second stop (5) is connected to the top wall (11) of the cavity (10) by a fastener. The fastener passes through the vertically penetrating connecting hole (51) on the second stop (5) and is connected to the top wall (11) of the cavity (10), pressing the second stop (5) against the top wall (11) of the cavity (10).

8. The housing structure for a range hood according to claim 7, characterized in that: The fastener is a screw, and a threaded hole (111) is provided on the top wall (11) of the cavity (10) at the position corresponding to the connection hole (51).

9. The housing structure for a range hood according to any one of claims 1 to 6, characterized in that: The left and right sides of the cover plate (3) extend backward to form flanges (31), and the two flanges (31) wrap around the left and right sides of the fan box body (1).

10. The housing structure for a range hood according to any one of claims 1 to 6, characterized in that: The first stop (4) is a vertically extending plate-shaped body, and the front side of the first stop (4) is used to fit against the rear side of the folded edge (12).

11. The housing structure for a range hood according to claim 10, characterized in that: The folded edge on the left side of the front opening of the cavity (10) is inclined forward from left to right, and the folded edge on the right side of the front opening of the cavity (10) is inclined forward from right to left. The first part (41) of the front side plate of each first stop (4) is attached to the back of the cover plate (3) in a manner that allows it to move left and right along the back of the cover plate (3), and the second part (42) is an inclined surface that is consistent with the inclination direction of the corresponding folded edge (12).

12. A range hood, characterized in that... It has a housing structure for a range hood as described in any one of claims 1 to 11.

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