Range hood

Abstract

The present application provides a kind of range hood, it is related to the technical field of kitchen appliance, range hood includes: shell, drive module and smoke collecting cavity component, smoke collecting cavity component is connected along vertical sliding with shell, smoke collecting cavity component includes shell body, oil cup support, elastic reset piece and oil cup, oil cup support is connected along vertical sliding in the bottom of shell body;Elastic reset piece is located between oil cup support and shell body;Drive module has first acting part for lifting smoke collecting cavity component, second acting part for pressing down oil cup support;Smoke collecting cavity component and oil cup support are respectively equipped with the matching part corresponding to first acting part and second acting part, to promote smoke collecting cavity component movement to hidden state, and promote oil cup support from shell slide out, so that oil cup is exposed outside;Locking assembly is provided on shell and shell body, locking assembly is used to lock smoke collecting cavity component in hidden state.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology

[0002] Existing range hoods include fully concealed range hoods, which include a casing fixed to the wall and a smoke collection chamber that can be raised and lowered relative to the casing. The smoke inlet and oil cup are both located on the smoke collection chamber.

[0003] Fully concealed means that the smoke collection chamber must be fully lowered or expanded before it can be used or cleaned. As the part of the range hood that is most prone to accumulating dirt and is cleaned most frequently, the oil cup needs to be cleaned manually by the user. The inconvenience of taking it out and cleaning it greatly reduces the user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a range hood that alleviates the technical problem of existing concealed range hoods where the oil cup can only be removed when the smoke collection chamber assembly is fully exposed, and the oil cup cannot be removed separately.

[0005] The present invention provides a range hood, comprising: a shell, a drive module and a smoke collection chamber assembly, wherein the smoke collection chamber assembly is slidably connected to the shell in a vertical direction, and the smoke collection chamber assembly can slide into the shell and be in a hidden state, or slide out from the shell and be in a working state. The smoke collection chamber assembly includes a housing, an oil cup bracket, an elastic reset member, and an oil cup. The oil cup bracket is slidably connected to the bottom of the housing in a vertical direction. The elastic reset member is located between the oil cup bracket and the housing and is used to give the oil cup bracket an upward tendency. The oil cup is placed inside the oil cup bracket. The drive module has a first working part for lifting the smoke collection chamber assembly and a second working part for pressing down the oil cup bracket; the smoke collection chamber assembly and the oil cup bracket are respectively provided with push-fitting parts corresponding to the first working part and the second working part, so as to push the smoke collection chamber assembly to a hidden state and push the oil cup bracket to slide out from the housing so that the oil cup is exposed. The outer casing and housing are equipped with a locking component, which is used to lock the smoke collection chamber assembly in a concealed state.

[0006] Furthermore, the drive module includes a load-bearing block capable of vertical movement; a first action part and a second action part are respectively disposed at the upper and lower ends of the load-bearing block; The pushed mating part includes a second abutting part disposed on the housing and a first abutting part disposed on the oil cup bracket; The second abutment is located at the position where the load-bearing block can abut when it moves upward, and the first abutment is located at the position where the load-bearing block can abut when it moves downward. The load-bearing block can move upward and abut against the second contact part, and push the smoke collection chamber assembly to a hidden state; The load-bearing block can move downwards and abut against the first contact part, pushing the oil cup holder out of the housing so that the oil cup is exposed.

[0007] Furthermore, the locking assembly includes a load-bearing bracket disposed on the housing and a suspension bracket disposed on the housing; The load-bearing bracket is equipped with locking devices; The suspension bracket is equipped with a locking structure and an unlocking structure. In the hidden state, the locking structure is connected to the locking element to prevent the smoke collection chamber assembly from descending. The smoke collection chamber assembly also has an unlocked state. When the smoke collection chamber assembly moves vertically upward from the hidden state to the unlocked state, the unlocking structure contacts the locking member and unlocks the locking assembly, thereby separating the locked structure from the locking member.

[0008] Furthermore, the locking member includes a first elastic piece and a second elastic piece spaced apart in the horizontal direction, and a locking hole is formed between the first elastic piece and the second elastic piece; The suspension bracket includes a locking rod, a fixed bracket, a movable bracket, and a limiting component. The bottom end of the locking rod is connected to the top of the housing. From top to bottom, the fixed bracket, the movable bracket, and the limiting component are sequentially arranged on the locking rod, and the movable bracket is slidably connected to the locking rod. The fixed bracket forms the locking structure, and the movable bracket forms the unlocking structure. The movable support can abut against the limiting component under the action of gravity, at which time a snap-fit ​​gap is formed between the movable support and the fixed support; During the ascent of the smoke collection chamber assembly, the fixed bracket can push open the first and second elastic plates under the pushing action of the load-bearing block and pass through the lock hole from bottom to top; As the smoke collection chamber assembly continues to rise, the top surface of the moving bracket can push open the first and second elastic plates and pass through the lock hole from top to bottom. During the descent of the smoke collection chamber assembly, the bottom surface of the moving bracket can push open the first and second elastic plates under the gravity of the smoke collection chamber assembly and pass through the lock hole from bottom to top. When the bottom surface of the fixed bracket abuts against the top surface of the movable bracket, the locking gap can extend beyond the locking hole.

[0009] Furthermore, the top surface of the fixed bracket is provided with an upwardly protruding first guide surface, which is used to widen the lock hole; The top surface of the movable bracket is provided with an upwardly protruding second guide surface, which is used to widen the lock hole; The bottom surface of the movable bracket is provided with a downward protruding third guide surface, which is used to widen the lock hole.

[0010] Furthermore, the edge of the first elastic sheet forming the lock hole is provided with an upwardly folded first guide edge; the edge of the second elastic sheet forming the lock hole is provided with an upwardly folded second guide edge; From bottom to top, the distance between the first guide edge and the second guide edge gradually decreases.

[0011] Furthermore, a third guide edge is provided at the top of the first guide edge, which bends and extends in the direction away from the second guide edge. The top of the second guide edge is provided with a fourth guide edge that bends and extends in a direction away from the first guide edge.

[0012] Furthermore, the bottom surface of the fixed support corresponds to the concave and convex shape of the top surface of the movable support, so as to eliminate the jamming gap when the two come into contact.

[0013] Furthermore, the drive module includes a lead screw motor module, which is mounted on the housing; The slider of the lead screw motor module forms a load-bearing block.

[0014] Furthermore, the oil cup holder includes a mounting groove with an opening facing forward, which is used to place the oil cup horizontally; The bottom surface of the housing is provided with a through hole. The oil cup bracket also includes a guide rod. The top of the guide rod passes through the through hole from bottom to top. The lower end of the guide rod is connected to the top of the mounting groove. The top of the guide rod is provided with an abutment block, which is used to abut against the load-bearing block. The elastic reset component includes a spring, which is sleeved on the guide rod, with one end connected to the abutment block and the other end abutting against the bottom of the housing.

[0015] Furthermore, there are multiple locking components.

[0016] This invention has at least the following advantages or beneficial effects: The range hood provided by this invention includes: a housing, a drive module, and a smoke collection chamber assembly. The smoke collection chamber assembly is vertically slidably connected to the housing. The smoke collection chamber assembly can slide into the housing and be in a hidden state, or slide out from the housing and be in a working state. The smoke collection chamber assembly includes a housing, an oil cup support, an elastic reset member, and an oil cup. The oil cup support is vertically slidably connected to the bottom of the housing. The elastic reset member is located between the oil cup support and the housing and is used to give the oil cup support an upward tendency. The oil cup is placed inside the oil cup support. The drive module has a first working part for lifting the smoke collection chamber assembly and a second working part for pressing down the oil cup support. The smoke collection chamber assembly and the oil cup support are respectively provided with push-fitting parts corresponding to the first and second working parts to push the smoke collection chamber assembly to the hidden state and to push the oil cup support to slide out from the housing so that the oil cup is exposed. The housing and the housing are provided with a locking assembly for locking the smoke collection chamber assembly in the hidden state.

[0017] When the drive module is activated, the first actuating part moves vertically upward, first contacting and pushing the corresponding push-fitting part on the housing, thereby driving the entire smoke collection chamber assembly upward until it is fully embedded inside the housing, forming a hidden state. During this process, the locking component works, locking the smoke collection chamber assembly in the hidden position, and the drive module no longer supports the smoke collection chamber assembly. When the user needs to clean the oil cup, the drive module reverses its action, and the second actuating part moves downward until it abuts against the corresponding push-fitting part on the oil cup bracket. The second actuating part pushes the oil cup bracket downward, overcoming the elastic force of the elastic reset component, driving the oil cup bracket downward, and finally protruding from the bottom of the housing. At this time, the oil cup is fully exposed from the front opening of the housing, facilitating horizontal pulling and placing. After the oil cup is cleaned and returned to the oil cup bracket, the first actuating part moves upward, stops pressing down, the elastic reset component resets and pushes the oil cup bracket upward, and the oil cup bracket is hidden inside the housing again, realizing the independent use and reset function of the oil cup without having to completely push the housing of the smoke collection chamber assembly to the outside of the housing. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a range hood in operation according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a range hood in a concealed state with the oil cup bracket exposed, as provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the internal structure of a range hood in operation, provided in an embodiment of the present invention. Figure 4 for Figure 3 A magnified view of a portion of position A in the middle; Figure 5 for Figure 3 A magnified view of a portion of position B in the middle; Figure 6 A schematic diagram of the internal structure of a range hood about to enter a concealed state, provided in an embodiment of the present invention. Figure 7 for Figure 6 A magnified view of the area at position C in the middle; Figure 8 A schematic diagram of the internal structure of a range hood in a concealed state, provided in an embodiment of the present invention; Figure 9 for Figure 8A magnified view of the area at position D in the middle; Figure 10 This is a schematic diagram of the internal structure of the oil cup holder of the range hood that is about to be launched, provided in an embodiment of the present invention; Figure 11 for Figure 10 A magnified view of the area at position E in the middle; Figure 12 A schematic diagram of the internal structure of a range hood about to enter the unlocked state, provided in an embodiment of the present invention; Figure 13 for Figure 12 A magnified view of the area at position F in the middle; Figure 14 This is a schematic diagram of the internal structure of a range hood in an unlocked state, provided in an embodiment of the present invention. Figure 15 for Figure 14 A magnified view of the area at position G.

[0020] Icon: 100 - Shell; 200 - Drive module; 210 - Load-bearing block; 300 - Smoke collection chamber assembly; 310 - Housing; 311 - Second abutment part; 320 - Oil cup support; 321 - First abutment part; 330 - Elastic reset element; 340 - Oil cup; 400 - Lifting guide structure; 510 - First elastic sheet; 511 - First guide edge; 512 - Third guide edge; 520 - Second elastic sheet; 521 - Second guide edge; 522 - Fourth guide edge; 610-Locking rod; 620-Fixed bracket; 621-First guide surface; 630 - Moving support; 631 - Second guide surface; 632 - Third guide surface; 640 - Limiting component; 700 - Snap-fit ​​gap; 800 - Guide rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figures 1-15As shown, the range hood includes: a housing 100, a drive module 200, and a smoke collection chamber assembly 300. The smoke collection chamber assembly 300 is vertically slidably connected to the housing 100. The smoke collection chamber assembly 300 can slide into the housing 100 and be in a hidden state, or slide out from the housing 100 and be in an operating state. The smoke collection chamber assembly 300 includes a housing 310, an oil cup support 320, an elastic reset member 330, and an oil cup 340. The oil cup support 320 is vertically slidably connected to the bottom of the housing 310. The elastic reset member 330 is located between the oil cup support 320 and the housing 310, and is used to give the oil cup support 320 an upward tendency. The oil cup 340 is placed inside the oil cup support 320.

[0028] The drive module 200 includes a load-bearing block 210 capable of vertical movement; the first action part and the second action part are respectively disposed at the upper and lower ends of the load-bearing block 210, that is, the first action part and the second action part are both disposed on the load-bearing block 210. In other feasible solutions, the first action part and the second action part can also be disposed on two independent structural components.

[0029] The push-fitting part includes a second abutting part 311 disposed on the housing 310 and a first abutting part 321 disposed on the oil cup bracket 320. In this embodiment, the second abutting part 311 is located at a position where it can abut when the load-bearing block 210 moves upward, and the first abutting part 321 is located at a position where it can abut when the load-bearing block 210 moves downward.

[0030] The drive module 200 includes a component capable of applying a vertical thrust to the load-bearing block 210 to move it upwards or downwards. The load-bearing block 210 can move upwards and abut against the second abutment portion 311, pushing the smoke collection chamber assembly 300 to a concealed state. The outer casing 100 and housing 310 are provided with a locking component for locking the smoke collection chamber assembly 300 in the concealed state. The load-bearing block 210 can move downwards and abut against the first abutment portion 321, pushing the oil cup support 320 to slide out from the outer casing 100, so that the oil cup 340 is exposed.

[0031] like Figure 1 and Figure 3 As shown, the range hood adopts a modular structure, with the outer casing 100 fixedly installed on a cabinet or wall. The smoke collection chamber assembly 300 is vertically slidably connected to the outer casing 100 via a lifting guide structure 400.

[0032] like Figure 3 As shown, when the drive module 200 is started, the load-bearing block 210 moves upward in the vertical direction, first contacting and pushing the second abutment part 311 on the housing 310, thereby driving the entire smoke collection chamber assembly 300 to move upward until it is completely embedded inside the housing 100, forming a hidden state, as shown. Figure 8 and Figure 9 As shown. During this process, the locking component operates, locking the smoke collection chamber assembly 300 in a hidden position, and the load-bearing block 210 on the drive module 200 no longer supports the smoke collection chamber assembly 300.

[0033] like Figure 10 and Figure 11 As shown, when the user needs to clean the oil cup 340, the drive module 200 reverses its movement, and the load-bearing block 210 moves downward, disengaging from the second abutment part 311 and continuing downward until it abuts against the first abutment part 321 on the oil cup bracket 320. The load-bearing block 210 pushes the oil cup bracket 320 downward, overcoming the elastic force of the elastic reset member 330, and drives the oil cup bracket 320 to move downward, finally protruding from the bottom of the outer shell 100. At this time, the oil cup 340 is fully exposed from the front opening of the outer shell 100, facilitating horizontal pulling and placing. After the oil cup 340 is cleaned and returned to the oil cup bracket 320, the load-bearing block 210 moves upward and stops pressing down. The elastic reset member 330 resets and pushes the oil cup bracket 320 upward, causing the oil cup bracket 320 to retract into the outer shell 100, thus realizing the independent use and reset function of the oil cup 340.

[0034] The locking assembly includes a load-bearing bracket mounted on the housing 100 and a suspension bracket mounted on the housing 310; the load-bearing bracket is provided with a locking element; the suspension bracket is provided with a locked structure and an unlocking structure. In the hidden state, the locked structure is connected to the locking element to prevent the smoke collection chamber assembly 300 from descending; the smoke collection chamber assembly 300 also has an unlocked state. When the smoke collection chamber assembly 300 moves vertically upward from the hidden state to the unlocked state, the unlocking structure contacts the locking element and unlocks the locking assembly, thereby separating the locked structure from the locking element.

[0035] The load-bearing bracket is fixed to the top of the inner wall of the outer casing 100. The suspension bracket is installed on the top of the casing 310, and the suspension bracket rises and falls synchronously with the smoke collection chamber assembly 300. After the smoke collection chamber assembly 300 reaches the hidden position, the locked structure inserts into the limiting space of the locking member, forming a blocking limit, preventing the smoke collection chamber assembly 300 from falling by itself under the action of gravity. After the smoke collection chamber assembly 300 moves further upward, the unlocking structure contacts the locking member, causing the locking member to deform or displace, so that the locking member can no longer stop the locked structure, thereby releasing the locked structure. This upward micro-movement constitutes the "unlocked state", which not only ensures the reliability of locking in the hidden state, but also provides the trigger condition for subsequent unlocking, avoiding the risk of accidental triggering or locking.

[0036] like Figure 4 and Figure 5As shown, the locking element includes a first elastic piece 510 and a second elastic piece 520 spaced apart in the horizontal direction, with a locking hole formed between the first elastic piece 510 and the second elastic piece 520; the suspension bracket includes a locking rod 610, a fixed bracket 620, a movable bracket 630, and a limiting member 640. The bottom end of the locking rod 610 is connected to the top of the housing 310. From top to bottom, the fixed bracket 620, the movable bracket 630, and the limiting member 640 are sequentially arranged on the locking rod 610, and the movable bracket 630 is slidably connected to the locking rod 610; the fixed bracket 620 forms a locked structure, and the movable bracket 630 forms an unlocking structure; the movable bracket 630 can engage with the limiting member 640 under the action of gravity. When the movable support 630 and the fixed support 620 come into contact, a snap-fit ​​gap 700 is formed between them. The fixed support 620 can push open the first elastic piece 510 and the second elastic piece 520 under the pushing action of the load-bearing block 210 and pass through the lock hole from bottom to top. The top surface of the movable support 630 can push open the first elastic piece 510 and the second elastic piece 520 and pass through the lock hole from top to bottom. The bottom surface of the movable support 630 can push open the first elastic piece 510 and the second elastic piece 520 under the gravity of the smoke collection chamber assembly 300 and pass through the lock hole from bottom to top. When the bottom surface of the fixed support 620 and the top surface of the movable support 630 come into contact, the snap-fit ​​gap 700 can pass through the lock hole.

[0037] The first elastic plate 510 and the second elastic plate 520 are symmetrically arranged, and together they can form a double-plate lock hole structure with elastic reset capability. The width of the opening between the first elastic plate 510 and the second elastic plate 520 can be resettable and widened under the action of external force. The fixed bracket 620 is fixedly installed on the upper part of the locking rod 610 and undertakes the locking function. The movable bracket 630 is sleeved on the locking rod 610 and can slide freely up and down on it. The natural position of the movable bracket 630 is limited by the position of the limiting member 640. The limiting member 640 can be a pin structure. Under the support of the limiting member 640, the movable bracket 630 and the fixed bracket 620 maintain an axial gap so that the edge of the lock hole can be inserted and the fixed bracket 620 can be locked.

[0038] like Figures 6-9 As shown, when the smoke collection chamber assembly 300 rises to the hidden position, the fixed bracket 620, under the continuous pushing force of the load-bearing block 210, opens the first elastic plate 510 and the second elastic plate 520, and passes through the lock hole from bottom to top. After the fixed bracket 620 passes through the lock hole, the first elastic plate 510 and the second elastic plate 520 are located within the snap-fit ​​gap 700, and the width of the lock hole returns to its natural state, completing the locking. At this time, the smoke collection chamber assembly 300 is in the hidden state.

[0039] like Figures 12-15As shown, when unlocking is required, the load-bearing block 210 continues to move upward, the smoke collection chamber assembly 300 moves upward a certain distance, the top surface of the moving bracket 630 contacts the first elastic plate 510 and the second elastic plate 520 and opens the lock hole, and the moving bracket 630 passes into the lock hole from top to bottom. Then, the load-bearing block 210 moves downward. After losing the support of the load-bearing block 210, the smoke collection chamber assembly 300 moves downward under its own weight. The fixed bracket 620 contacts the first elastic plate 510 and the second elastic plate 520. Then, the movable bracket 630 moves upward relative to the locking rod 610 and abuts against the fixed bracket 620, reducing the gap between them. When the movable bracket 630 can no longer move upward, it is in the unlocked state. The bottom surface of the movable bracket 630 opens the lock hole, and the movable bracket 630 and the fixed bracket 620 move downward together past the lock hole. After the movable bracket 630 and the fixed bracket 620 have completely passed the lock hole, the smoke collection hood assembly falls back onto the load-bearing block 210 and moves downward together with the load-bearing block 210 until it switches to the hidden state or the working state. The locking and unlocking actions are achieved by the cooperation of the movable bracket 630 and the fixed bracket 620. Furthermore, the unlocking action is completed entirely by the weight of the smoke collection chamber assembly 300 itself, without the need for additional automatic unlocking electrical components.

[0040] like Figure 4 and Figure 5 As shown, the top surface of the fixed bracket 620 is provided with an upwardly protruding first guide surface 621, which is used to enlarge the lock hole; the top surface of the movable bracket 630 is provided with an upwardly protruding second guide surface 631, which is used to enlarge the lock hole; the bottom surface of the movable bracket 630 is provided with a downwardly protruding third guide surface 632, which is used to enlarge the lock hole.

[0041] Each of the aforementioned guide surfaces can be a tapered wedge shape or an arc shape. The first guide surface 621 is located at the top of the fixed bracket 620. During its upward insertion into the lock hole, it first contacts the first elastic plate 510 and the second elastic plate 520, using the inclined plane force to push the first elastic plate 510 and the second elastic plate 520 outward in the horizontal direction, reducing the insertion resistance. Similarly, the second guide surface 631 and the third guide surface 632 are both spaced apart to reduce the resistance of passing through the lock hole, thereby improving the smoothness of the device's operation and its service life.

[0042] like Figure 4 and Figure 5 As shown, the edge of the first elastic sheet 510 forming the lock hole is provided with an upwardly folded first guide edge 511; the edge of the second elastic sheet 520 forming the lock hole is provided with an upwardly folded second guide edge 521; from bottom to top, the distance between the first guide edge 511 and the second guide edge 521 gradually decreases.

[0043] The first guide edge 511 and the second guide edge 521 are formed by folding the edges of the first elastic sheet 510 and the second elastic sheet 520, respectively. They are symmetrically distributed on both sides of the keyhole, forming a trumpet-shaped tapered entrance. This tapered structure allows the locked or unlocked structure, inserted into the keyhole from bottom to top, to be guided to the center of the keyhole even if it is not perfectly aligned, compensating for slight movement deviations caused by assembly tolerances.

[0044] like Figure 4 and Figure 5 As shown, the top end of the first guide edge 511 is provided with a third guide edge 512 that bends and extends in the direction away from the second guide edge 521; the top end of the second guide edge 521 is provided with a fourth guide edge 522 that bends and extends in the direction away from the first guide edge 511.

[0045] The third guide edge 512 and the fourth guide edge 522 extend radially from the top ends of the aforementioned two guide edges, forming an outwardly opening hook-shaped cantilever structure. When the fixed bracket 620 is inserted into the lock hole, the third guide edge 512 and the fourth guide edge 522 quickly insert into the snap-fit ​​gap 700, avoiding interference with other components. At the same time, when the movable bracket 630 falls from top to bottom, the third guide edge 512 and the fourth guide edge 522 can also form sliding contact with the third guide surface 632, facilitating the opening of the latch.

[0046] like Figure 9 and Figure 15 As shown, the bottom surface of the fixed bracket 620 corresponds to the concave-convex shape of the top surface of the movable bracket 630 so as to eliminate the jamming gap 700 when the two come into contact.

[0047] The fixed bracket 620 has an annular boss on its bottom surface, and the movable bracket 630 has a matching annular groove on its top surface; their contours are complementary. When the movable bracket 630 is pushed to contact the fixed bracket 620 during the unlocking action, the boss engages with the groove, eliminating the original locking gap 700. The fixed bracket 620 and the movable bracket 630 form a single structure, passing together through the lock hole. This reduces the risk of the first elastic piece 510 and the second elastic piece 520 mistakenly inserting into the locking gap 700, thus preventing unlocking. Furthermore, the hook shape of the third guide edge 512 and the fourth guide edge 522 increases the thickness of the free ends of the first elastic piece 510 and the second elastic piece 520, further reducing the risk of mistaken insertion into the locking gap.

[0048] like Figure 3 As shown, the drive module 200 includes a lead screw motor module, which is mounted on the housing 100; the slider of the lead screw motor module forms a load-bearing block 210.

[0049] The lead screw motor module is fixed inside the housing 100, and its output shaft is coaxially connected to the lead screw. The slider is threadedly connected to the lead screw, converting the motor's rotary motion into linear reciprocating motion. When the slider moves upward, its upper end face acts as a thrust surface, contacting the second abutment part 311, driving the smoke collection chamber assembly 300 to rise; when it moves downward, its lower end face acts as a pressing surface, contacting the first abutment part 321, driving the oil cup support 320 to descend.

[0050] like Figure 1 and Figure 2 As shown, the oil cup holder 320 includes a mounting groove with an opening facing forward, which is used to horizontally place the oil cup 340; the bottom surface of the housing 310 is provided with a through hole, and the oil cup holder 320 also includes a guide rod, the top end of which passes through the through hole from bottom to top, the lower end of which is connected to the top of the mounting groove, and the top of the guide rod is provided with an abutment block, which is used to abut against the load-bearing block 210; the elastic reset member 330 includes a spring, which is sleeved on the guide rod, and one end is connected to the abutment block, and the other end abuts against the bottom of the housing 310.

[0051] The mounting slot is a rectangular cavity with a front opening. Its inner wall contour matches the shape of the oil cup 340, ensuring stable circumferential positioning and smooth pull-out after the oil cup 340 is inserted. The guide rod vertically passes through the through hole on the bottom surface of the housing 310, and its axis is parallel to the lifting direction of the smoke collection chamber assembly 300. The abutment block is installed at the top of the guide rod, in a U-shape or groove shape, to support the load-bearing block 210 and prevent uneven loading. The spring is sleeved on the outside of the guide rod, with its two ends supporting the abutment block and the bottom of the housing 310, respectively.

[0052] like Figure 10 As shown, the top of the oil cup support 320 is provided with a guide rod 800 that protrudes vertically upward, and the housing 310 is provided with a guide hole that connects to the guide rod 800 so that the oil cups 340 slide strictly in a vertical direction.

[0053] There are multiple locking components. In this embodiment, there are two locking components, which are symmetrically arranged in the left-right direction to share the pressure.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A range hood, characterized in that, include: The housing (100), the drive module (200), and the smoke collection chamber assembly (300) are slidably connected to the housing (100) in a vertical direction. The smoke collection chamber assembly (300) can slide into the housing (100) and be in a hidden state, or it can slide out from the housing (100) and be in a working state. The smoke collection chamber assembly (300) includes a housing (310), an oil cup support (320), an elastic reset member (330), and an oil cup (340). The oil cup support (320) is slidably connected vertically to the bottom of the housing (310). The elastic reset member (330) is located between the oil cup support (320) and the housing (310) and is used to give the oil cup support (320) an upward tendency. The oil cup (340) is placed inside the oil cup support (320). The drive module (200) has a first working part for lifting the smoke collection chamber assembly (300) and a second working part for pressing down the oil cup bracket (320); the smoke collection chamber assembly (300) and the oil cup bracket (320) are respectively provided with push-fitting parts corresponding to the first working part and the second working part, so as to push the smoke collection chamber assembly (300) to move to a hidden state, and push the oil cup bracket (320) to slide out from the housing (100) so that the oil cup (340) is exposed. The outer shell (100) and the housing (310) are provided with locking components, which are used to lock the smoke collection chamber assembly (300) in a hidden state.

2. The range hood according to claim 1, characterized in that, The drive module (200) includes a load-bearing block (210) capable of vertical movement; the first working part and the second working part are respectively disposed at the upper and lower ends of the load-bearing block (210); The push-fitting part includes a second abutting part (311) disposed on the housing (310) and a first abutting part (321) disposed on the oil cup bracket (320). The second abutment (311) is located at a position where it can abut when the load-bearing block (210) moves upward, and the first abutment (321) is located at a position where it can abut when the load-bearing block (210) moves downward; The load-bearing block (210) can move upward and abut against the second abutting part (311), and push the smoke collection chamber assembly (300) to move to a hidden state; The load-bearing block (210) can move downward and abut against the first abutment (321), and push the oil cup bracket (320) to slide out of the housing (100) so that the oil cup (340) is exposed.

3. The range hood according to claim 2, characterized in that, The locking assembly includes a load-bearing bracket disposed on the housing (100) and a suspension bracket disposed on the housing (310); The load-bearing bracket is equipped with a locking device; The suspension bracket is provided with a locking structure and an unlocking structure. In the hidden state, the locking structure is connected to the locking member to prevent the smoke collection chamber assembly (300) from descending. The smoke collection chamber assembly (300) also has an unlocked state. When the smoke collection chamber assembly (300) moves vertically upward from the hidden state to the unlocked state, the unlocking structure contacts the locking member and unlocks the locking assembly, so as to separate the locked structure from the locking member.

4. The range hood according to claim 3, characterized in that, The locking member includes a first elastic piece (510) and a second elastic piece (520) spaced apart in a horizontal direction, and a lock hole is formed between the first elastic piece (510) and the second elastic piece (520); The suspension bracket includes a locking rod (610), a fixed bracket (620), a movable bracket (630), and a limiting member (640). The bottom end of the locking rod (610) is connected to the top of the housing (310). From top to bottom, the fixed bracket (620), the movable bracket (630), and the limiting member (640) are sequentially arranged on the locking rod (610), and the movable bracket (630) is slidably connected to the locking rod (610). The fixed bracket (620) forms the locked structure, and the movable bracket (630) forms the unlocking structure. The movable support (630) can abut against the limiting member (640) under the action of gravity. At this time, a snap-fit ​​gap (700) is formed between the movable support (630) and the fixed support (620). During the upward movement of the smoke collection chamber assembly (300), the fixed bracket (620) can push open the first elastic sheet (510) and the second elastic sheet (520) under the pushing action of the load-bearing block, and pass through the lock hole from bottom to top; As the smoke collection chamber assembly (300) continues to rise, the top surface of the moving bracket (630) can push open the first elastic sheet (510) and the second elastic sheet (520) and pass through the lock hole from top to bottom; During the descent of the smoke collection chamber assembly (300), the bottom surface of the moving bracket (630) can push open the first elastic sheet (510) and the second elastic sheet (520) under the gravity of the smoke collection chamber assembly (300) and pass through the lock hole from bottom to top; When the bottom surface of the fixed bracket (620) abuts against the top surface of the movable bracket (630), the locking gap (700) can pass through the locking hole.

5. The range hood according to claim 4, characterized in that, The top surface of the fixed bracket (620) is provided with an upwardly protruding first guide surface (621), which is used to widen the lock hole; The top surface of the movable bracket (630) is provided with an upwardly protruding second guide surface (631), which is used to widen the lock hole; The bottom surface of the movable bracket (630) is provided with a downwardly protruding third guide surface (632), which is used to widen the lock hole.

6. The range hood according to claim 5, characterized in that, The first elastic sheet (510) has an upwardly folded first guide edge (511) on the edge of the lock hole; the second elastic sheet (520) has an upwardly folded second guide edge (521) on the edge of the lock hole. From bottom to top, the distance between the first guide edge (511) and the second guide edge (521) gradually decreases.

7. The range hood according to claim 6, characterized in that, The top end of the first guide edge (511) is provided with a third guide edge (512) that bends and extends in a direction away from the second guide edge (521). The top end of the second guide edge (521) is provided with a fourth guide edge (522) that bends and extends in a direction away from the first guide edge (511).

8. The range hood according to claim 4, characterized in that, The bottom surface of the fixed bracket (620) corresponds to the concave-convex shape of the top surface of the movable bracket (630) so that the snap-fit ​​gap (700) is eliminated when the two come into contact.

9. The range hood according to any one of claims 2-7, characterized in that, The drive module (200) includes a lead screw motor module, which is mounted on the housing (100). The slider of the lead screw motor module forms the load-bearing block (210). And / or, the oil cup holder (320) includes a mounting groove with an opening facing forward, the mounting groove being used to place the oil cup (340) laterally. The bottom surface of the housing (310) is provided with a through hole, and the oil cup bracket (320) also includes a guide rod. The top end of the guide rod passes through the through hole from bottom to top, and the lower end of the guide rod is connected to the top of the mounting groove. The top of the guide rod is provided with an abutment block, which is used to abut against the load-bearing block (210). The elastic reset member (330) includes a spring, which is sleeved on the guide rod and has one end connected to the abutment block and the other end abutting the bottom of the housing (310).

10. The range hood according to any one of claims 1-7, characterized in that, The number of locking components is multiple.

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