Oil cup mounting structure of range hood and range hood

Abstract

The utility model relates to an oil cup installation structure of a range hood and the range hood, and the oil cup installation structure comprises a housing, the bottom of which is provided with a slot; an inserting piece is arranged at the top of the oil cup; the socket further comprises a lock catch assembly arranged at the bottom of the insertion piece, the lock catch assembly comprises a limiting buckle, an elastic piece and an unlocking operation piece, the limiting buckle is rotationally arranged on the insertion piece in the mode that the limiting buckle can rotate around the axis extending leftwards and rightwards, and the top of the limiting buckle is provided with a limiting protruding part extending upwards. The position, close to the inserting groove, of the bottom of the machine shell is provided with a limiting concave portion allowing the limiting convex portion to be clamped into the limiting concave portion upwards, the elastic piece acts on the limiting buckle and enables the limiting convex portion of the limiting buckle to have the trend of upwards deflecting all the time, and the unlocking operation piece abuts against or is connected with the limiting buckle. And the limiting convex buckle of the limiting buckle is driven to deflect downwards to be separated from the limiting concave part by force application operation of a user. The oil cup has the advantages of being firm in installation, good in anti-vibration effect and free of occupying the internal space of the oil cup.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to an oil cup mounting structure of a range hood and the range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It typically consists of a housing and an oil cup located at the bottom of the housing. The oil cup is typically detachably attached to the bottom of the housing. Currently, two common methods are used for mounting the oil cup: a plug-in connection, where the oil cup inserts into a slot in the range hood's housing; and a snap-on connection, which adds a spring-loaded spring to the plug-in connection to provide a certain degree of elastic resistance.

[0003] However, conventional insert-type oil cup connections lack anti-slip properties and cannot be used with range hoods that rotate. If the range hood housing rotates, the insert-type oil cup can slip out of the gap between the housing and the housing and fall out. Furthermore, insert-type oil cup connections lack anti-vibration properties. Over time, grease accumulates on the impeller, often leading to dynamic imbalance and slight tremors. This in turn causes the oil cup to vibrate, and the inserts constantly collide with the range hood housing, producing unusual vibrations and noise. Spring-type oil cup connections also have certain drawbacks. While they offer some anti-slip and anti-vibration properties, the effectiveness is limited. The anti-slip spring force of the spring must be designed to be too high. If this force is too strong, removing the oil cup becomes difficult. Pulling the oil cup with excessive force can easily cause the oil in the cup to slosh out due to inertia. Because the spring force cannot be designed to be too high, the anti-vibration properties are limited.

[0004] To this end, the utility model patent application with application number CN201821055443.0 (authorization announcement number: CN208579370U) discloses an oil cup mounting structure for a range hood, which includes a shell and an oil cup. The oil cup is detachably arranged at the bottom of the shell through an installation assembly. The installation assembly includes a first positioning block, a second positioning block and an elastic member. The first positioning block is arranged at the bottom of the shell and has a first positioning portion at the lower end; the second positioning block is arranged on the inner wall of the oil cup and has a second positioning portion at the upper end; the elastic member enables the second positioning portion to always maintain a tendency to be engaged with the first positioning portion. When installing the oil cup, push the oil cup upward from the bottom of the range hood casing until the first positioning part and the second positioning part are engaged with each other, and the installation of the range hood is completed; when the oil cup needs to be removed, press the button on the rear side of the oil cup to keep the first positioning part and the second positioning part separated from each other, and then remove the oil cup. Both installation and disassembly are extremely convenient; and since the button needs to be kept pressed during disassembly, the problem of the oil cup easily falling off is avoided, and the stability of the oil cup installation is improved.

[0005] However, the oil cup mounting structure described in the aforementioned patent application still has certain shortcomings. First, the second positioning block, which serves as a snap-fit ​​mechanism, is rotatably mounted on the inner wall of the oil cup. It occupies a portion of the oil cup's space in the vertical direction, limiting the oil cup's capacity. Otherwise, if the oil in the oil cup immerses or contacts the second positioning block, the service life of the corresponding components, especially the elastic member, will be significantly affected. When cleaning the oil cup, there are blind spots, making it difficult to clean thoroughly. Second, the button for pressing the unlock button is located on the rear side of the oil cup. When the user removes the oil cup, the button is not visible, making it difficult to find and press the unlock button, making the oil cup removal process very inconvenient.

[0006] Therefore, the oil cup mounting structure of the existing range hood needs to be further improved. Utility Model Content

[0007] The first technical problem to be solved by the present invention is to provide an oil cup installation structure for a range hood, which has a reliable oil cup installation, good anti-vibration effect and does not occupy the internal space of the oil cup, in view of the current status of the existing technology.

[0008] The second technical problem to be solved by the present invention is to provide an oil cup mounting mechanism for a range hood that is convenient for users to quickly disassemble and assemble, in response to the current status of the existing technology.

[0009] The third technical problem to be solved by the present invention is to provide a range hood using the above-mentioned oil cup mounting structure in view of the current status of the existing technology.

[0010] The technical solution adopted by the present invention to solve the first technical problem is: an oil cup mounting structure for a range hood, comprising:

[0011] a housing having a bottom with slots extending forward and backward;

[0012] An oil cup, the top of which has an insert extending forward and backward and capable of being inserted into the slot;

[0013] The lock assembly also includes a lock assembly provided at the bottom of the plug-in piece, the lock assembly including a limit buckle, an elastic member and an unlocking operating member, the limit buckle is rotatably provided on the plug-in piece in a manner that it can rotate around an axis extending left and right, the top of the limit buckle has a limit protrusion extending upward, the bottom of the housing has a limit recess for the limit protrusion to be upwardly snapped into at a position adjacent to the slot, the elastic member acts on the limit buckle and makes the limit protrusion of the limit buckle always have a tendency to deflect upward, the unlocking operating member is against or connected to the limit buckle, and the user applies force to drive the limit protrusion of the limit buckle to deflect downward and disengage from the limit recess.

[0014] To facilitate the installation and securement of components such as the retaining clip, elastic member, and unlocking member, the lock assembly further includes a housing having a mounting cavity extending forward and backward. The retaining clip, elastic member, and unlocking member are all located within the housing's mounting cavity. The insert has side edges extending forward and backward that correspond to the slot. The housing is located at the bottom of the insert, away from the side edges. After the side edges of the insert are inserted into the slot, the housing is positioned outside the slot. The retaining clip, elastic member, and unlocking member, when installed within the housing, form a modular unit that can be easily assembled and disassembled. This unit can be installed as a single component onto the insert or body of the oil cup, improving assembly and disassembly efficiency. Furthermore, once the housing is positioned outside the slot, the slot's width can be aligned with the insert's thickness, thus reducing the difficulty of machining the slot on the housing. Of course, it is conceivable that if the slot's width is sufficiently large, the oil cup insert and the lock assembly's housing and other components can be inserted into the slot together.

[0015] In order to realize the rotational connection of the limiting buckle relative to the shell, the limiting buckle is rotatably arranged on the left and right opposite side walls of the installation chamber of the shell through pins extending left and right.

[0016] Considering the position of the limit buckle at a certain distance from the front side wall of the oil cup, to facilitate deflection of the limit buckle from the front side of the oil cup, the unlocking operating member includes a front-to-back extending operating lever. One end of the operating lever is hingedly connected to the limit buckle, and the other end extends to the front side wall of the oil cup and is hingedly connected to a push button that slides forward and backward on the front side wall of the oil cup. It is conceivable that the operating lever can also be designed to move linearly in the front-to-back direction (such as by being arranged in a front-to-back extending limit slideway), so that the rear end of the operating lever can directly abut against the corresponding wall surface of the limit buckle, without the need for a hinged connection.

[0017] In order to facilitate the installation of the pressing button, a first mounting hole that passes through the front and back is opened on the front side wall of the oil cup, and the pressing button is movably arranged in the first mounting hole.

[0018] Given the limited thickness of the front sidewall of the oil cup and the relatively long pressing stroke of the push button, to ensure the push button's movable limit in the first mounting hole, the front portion of the push button protrudes significantly from the front sidewall of the oil cup, affecting the overall aesthetics. To this end, a decorative panel is attached to the front sidewall of the oil cup. The decorative panel defines a second mounting hole in an area opposite the first mounting hole, and the push button is movably mounted in both the first and second mounting holes. The installation of the decorative panel ensures that the combined thickness of the front sidewall of the oil cup and the decorative panel matches the overall stroke of the push button, thereby minimizing protrusion of the push button from the second mounting hole in the decorative panel, thus maintaining the overall aesthetics of the oil cup.

[0019] In order to further ensure the reliability of the oil cup installation, there are at least two limit buckles arranged at intervals along the front and rear, and there are at least two corresponding elastic members. The bottom of the casing is provided with at least two corresponding limit recesses. The two adjacent limit buckles in the front and rear are connected by a connecting rod extending front and back. The rear end of the connecting rod is hinged to the limit buckle located on the rear side, and the front end of the connecting rod is hinged to the limit buckle located on the front side.

[0020] The above-mentioned elastic part can adopt various existing technologies and may include various elastic elements such as compression springs, torsion springs, and spring leaves. However, in order to better cooperate with the above-mentioned limit buckle, the elastic part is a compression spring, one end of which is against the limit buckle and the other end is against the shell.

[0021] As an improvement, a first through hole is provided on the top wall of the shell, which runs through the top and bottom and allows the limiting protrusion of the limiting buckle to pass through upward. A second through hole is provided on the insert at a position corresponding to the first through hole, which runs through the top and bottom and allows the limiting protrusion of the limiting buckle to pass through upward.

[0022] To facilitate the installation and locking of the oil cup, the bottom of the housing further comprises a stopper for limiting the rearward movement of the insert. The rear side of the stopper protrusion of the stopper buckle is configured with a guide slope that slopes backward from top to bottom, and the front side of the stopper protrusion of the stopper buckle is configured with a stopper surface that forms a stopper in the front-to-back direction with the front side wall of the stopper recess. Due to the provision of the guide slope on the rear side of the stopper protrusion, when installing the oil cup, the insert of the oil cup can be directly pushed backward after being aligned with the slot of the housing. The guide slope of the stopper protrusion automatically deflects downward upon contacting the top wall of the slot of the housing, allowing the oil cup to move backward without significant resistance. After the oil cup is pushed into position (restrained by the stopper), the stopper buckle rotates upward and resets under the elastic force of the elastic member, causing the stopper protrusion to engage with the stopper recess, effectively limiting the stopper against the front side of the stopper recess and preventing the insert of the oil cup from falling out of the slot.

[0023] In order to increase the capacity of the oil cup and provide more space for installing the locking assembly, the oil cup includes a transverse portion and a longitudinal portion extending backward from the middle of the transverse portion. The top side of the longitudinal portion of the oil cup has a folded edge bent to the left or right, and the folded edge constitutes the insert.

[0024] In order to facilitate the user to hold the oil cup for disassembly and assembly, the bottom of the oil cup is further provided with a handle portion which is recessed upward for the user to hold.

[0025] In order to facilitate the user to disassemble and assemble the oil cup with one hand, the position of the handle on the oil cup is opposite to the position of the locking assembly in the upper and lower directions.

[0026] The technical solution adopted by the present invention to solve the third technical problem is: a range hood, comprising a casing and an oil cup arranged at the bottom of the casing, wherein the oil cup is connected to the casing using the above-mentioned oil cup mounting structure of the range hood.

[0027] In order to better adjust the smoke collection area of ​​the range hood according to actual cooking conditions and further improve the oil fume extraction effect, the casing includes an upper box body and a lower box body that can rotate back and forth at the bottom of the upper box body, and the oil cup is arranged at the bottom of the lower box body.

[0028] Compared to the prior art, the present invention offers the following advantages: once the oil cup is installed in the slot at the bottom of the housing, it is locked in place by the locking assembly's retaining clip, providing excellent anti-slip properties. Specifically, when the oil cup is mounted on the rotatable housing, it prevents it from sliding or falling due to tilting of the range hood. Furthermore, the retaining clip ensures that the oil cup maintains contact with the housing, eliminating the problem of the oil cup constantly colliding with the housing due to vibration and producing unusual noise, thus providing excellent vibration protection. To remove the oil cup, the unlocking element releases the retaining protrusion of the retaining clip from the retaining recess of the housing, releasing the retaining force between the oil cup and the housing. The insert of the oil cup can then be easily pulled forward for removal. This process requires minimal force, and the oil in the cup is prevented from spilling during installation or removal. Furthermore, because the locking assembly is located on the insert at the top of the oil cup, it does not occupy a large space within the oil cup and is less likely to come into contact with the oil within, thereby extending the life of the locking assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of a range hood according to an embodiment of the present utility model;

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the range hood according to an embodiment of the present invention from another angle;

[0031] Figure 3 This is a right side view of the range hood according to an embodiment of the present utility model;

[0032] Figure 4 This is a structural schematic diagram of an embodiment of the utility model in which the oil cup and the main body of the range hood are separated;

[0033] Figure 5 A vertical cross-sectional view of the oil cup and the lower housing of the range hood according to an embodiment of the present invention, taken along the front-to-back direction;

[0034] Figure 6 This is a schematic diagram of the three-dimensional structure of the oil cup according to an embodiment of the present utility model;

[0035] Figure 7This is a schematic diagram of the three-dimensional structure of the oil cup body and the locking assembly in a separated state according to an embodiment of the utility model;

[0036] Figure 8 for Figure 7 A schematic diagram of the structure of the lock assembly in a further disassembled state;

[0037] Figure 9 This is a right side view of the lock assembly of the embodiment of the utility model without the housing;

[0038] Figure 10 This is a right side view of the range hood according to an embodiment of the present invention (the lower housing is in a state of a backward deflection movement angle). DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0040] In the specification and claims of the present invention, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0041] Figures 1-10 The oil cup mounting structure of the range hood of the present invention and a preferred embodiment of the range hood are shown. The range hood includes a casing 1 and a centrifugal fan arranged in the casing 1. The casing 1 includes an upper box body 11 and a lower box body 12 arranged at the bottom of the upper box body 11. The inner cavity of the upper box body 11 is connected to the inner cavity of the lower box body 12. An air inlet is provided on the front side wall of the smoke hood, and external smoke can enter the lower box body 12 through the air inlet. The centrifugal fan is arranged in the upper box body 11. When the centrifugal fan is in operation, negative pressure is generated, and external oil smoke can be sucked into the lower box body 12 through the air inlet. An oil cup 2 is provided at the bottom of the lower box body 12. The oil cup 2 is in the shape of a long strip extending left and right, and is used to receive oil stains flowing down from the lower box body 12.

[0042] Combine Figure 3 and Figure 10In this embodiment, the lower housing 12 is mounted on the bottom of the upper housing 11 and can rotate back and forth about an axis extending left and right. This allows the position and orientation of the air inlet of the lower housing 12 to be adjusted according to actual cooking conditions, thereby improving the oil fume extraction effect. The rotational connection between the lower housing 12 and the upper housing 11 can be a fixed-axis rotational connection or a combination of translational and rotational deflection, as long as the inner cavities of the upper housing 11 and the lower housing 12 are sealed (e.g., by using a flexible telescopic tube to connect the two).

[0043] See also Figure 4 The oil cup 2 is detachably connected to the bottom of the lower box body 12. Specifically, the bottom of the lower box body 12 has slots 121 spaced apart on the left and right sides and extending forward and backward. The slots 121 are open at least on the left and right sides and the front. The left slot 121 is open on the left and front sides, and the right slot 121 is open on the right and front sides. The slot 121 can be formed on a bracket installed on the bottom of the lower box body 12, such as a bracket with a U-shaped slide welded to the bottom of the lower box body 12, or it can be formed by a plate connected to the bottom of the lower box body 12 and limited by the bottom wall of the lower box body 12, such as Figure 4 It is shown that the bottom of the lower box body 12 is connected to a plate structure with a Z-shaped cross-section. The upper plate part of the Z-shaped plate is connected to the bottom of the lower box body 12 by screws, and the gap formed between the lower plate part and the bottom wall of the lower box body 12 constitutes the above-mentioned slot 121.

[0044] See also Figure 6 The oil cup 2 includes a transverse portion 21 extending left and right, and a longitudinal portion 22 extending rearward from the center of the transverse portion 21. The top edges of the left and right sidewalls of the longitudinal portion 22 have flanges that fold inward and extend toward the interior of the longitudinal portion 22 of the oil cup 2. The flange on the left sidewall of the longitudinal portion 22 extends rightward, while the flange on the right sidewall extends leftward. These flanges of the oil cup 2 form inserts 221 that fit into the slot 121 of the housing 1. The thickness of the insert 221 substantially matches the vertical dimensions of the slot 121. During installation, the oil cup 2 can be installed by aligning its left and right flanges with the slot 121 at the bottom of the housing 1, then sliding it rearward into the slot 121.

[0045] See also Figure 4-Figure 9After the oil cup 2 is installed in the slot 121 at the bottom of the housing 1, it is locked to the bottom of the housing 1 by the limit buckle 31 of the locking assembly 3, which provides the oil cup 2 with a good anti-slip function. That is, when the oil cup 2 is installed on the rotatable housing 1, the oil cup 2 will not slide or fall due to the tilt of the range hood. The locking assembly 3 is located at the bottom of the top insert 221 of the oil cup 2. The locking assembly 3 is generally in the shape of a long strip extending forward and backward, and includes a housing 30 and a limit buckle 31, an elastic member 32, and an unlocking operating member located in the installation chamber 300 of the housing 30. The housing 30 can be connected to the top insert 221 of the oil cup 2 and the side wall of the longitudinal portion 22 of the oil cup 2 by screws. The left-right dimensions of the housing 30 are smaller than those of the insert 221. The housing 30 is installed close to the sidewalls of the longitudinal portion 22 of the oil cup 2. When the housing 30 is installed at the bottom of the insert 221, the side edges 2210 of the insert 221 are left exposed and can be inserted into the slot 121 of the housing 1. After the side edges 2210 of the insert 221 are inserted into the slot 121, the locking assembly 3 is located outside the slot 121.

[0046] When assembled into the housing 30, the locking assembly 3's retaining clip 31, elastic member 32, and unlocking mechanism form a modular unit that can be easily assembled and disassembled. This unit can be installed as a single component onto the insert 221 or the main body of the oil cup 2, improving assembly and disassembly efficiency. Once the housing 30 is positioned within the slot 121, the width of the slot 121 can be adjusted to match the thickness of the insert 221, simplifying the machining of the slot 121 on the housing 30.

[0047] The retaining clip 31 is pivotally mounted on the left and right sidewalls of the mounting chamber 300 of the housing 30 via pins extending left and right. The retaining clip 31 has an upwardly extending retaining protrusion 310 on its top, while the bottom of the housing 1 has a retaining recess 122 adjacent to the slot 121 into which the retaining protrusion snaps upward. The retaining recess 122 can be an upwardly recessed depression or groove in the bottom wall of the housing 1, or a through-hole extending vertically through the bottom wall of the housing 1. Specifically, to facilitate the installation and locking of the oil cup 2, the bottom of the housing 1 also has a retaining block 123 to limit the rearward movement of the insert 221. This block 123 can be a retaining protrusion protruding upward from the bottom wall of the slot 121, or a retaining flange located at the rear end of the slot 121. Alternatively, the rear end of the slot 121 can be directly sealed to limit the rearward movement of the insert 221.

[0048] A first through hole 301 is provided on the top wall of the shell 30, which runs through the shell 30 and allows the limiting protrusion 310 of the limiting buckle 31 to pass through upward. A second through hole 2211 is provided on the insert 221 at a position corresponding to the first through hole 301, and the limiting protrusion 310 of the limiting buckle 31 can pass through the first through hole 301 and the second through hole 2211 upward and be inserted into the limiting recess 122 of the casing 1.

[0049] The rear side of the limiting protrusion 310 of the limiting buckle 31 is constructed with a guide inclined surface 3101 that tilts backward from top to bottom, while the front side of the limiting protrusion 310 of the limiting buckle 31 is constructed with a stop surface 3102 that can form a stop in the front-to-back direction with the front side wall of the limiting recess 122. The stop surface 3102 can be a vertically extending plane. The elastic member 32 is provided at the bottom of the limiting buckle 31. In some embodiments, the elastic member 32 is a compression spring, the upper end of which abuts the limiting buckle 31 and the lower end abuts the housing 30. Specifically, to support the compression spring, a transversely extending horizontal plate 302 can be provided within the housing 30, with the lower end of the compression spring abutting against the horizontal plate 302. Under the elastic force of the compression spring, the limiting protrusion of the limiting buckle 31 always tends to deflect upward. Since the rear side of the limiting protrusion 310 is provided with a guide bevel 3101, when installing the oil cup 2, the insert 221 of the oil cup 2 can be directly pushed backward after being aligned with the slot 121 of the housing 1. The guide bevel 3101 of the limiting protrusion 310 can automatically deflect downward after contacting the top wall of the slot 121 of the housing 1. There will be no significant resistance in the backward movement of the oil cup 2. After the oil cup 2 is pushed into place (limited by the limiting block 123), the limiting buckle 31 rotates upward and resets under the elastic force of the elastic member 32, so that the limiting protrusion 310 is stuck in the limiting recess 122, forming an effective limit with the front side of the limiting recess 122, and preventing the insert 221 of the oil cup 2 from falling out of the slot 121. Figure 5 As shown, the compression spring is in a compressed state, rotating upward against the stop buckle 31, and the stop protrusion 310 hits the stop recess 122 on the lower housing 12, stopping rotation. At this point, if the oil cup 2 is simply removed from the back to the front by hand, the stop protrusion 310 will press against the stop recess 122 on the lower housing 12, preventing it from coming out. Furthermore, the harder you try, the harder it is to remove it, because the reaction force on the stop buckle 31 creates a torque that drives the stop buckle 31 to rotate clockwise (i.e., closer to the stop recess 122). Therefore, unless the structure is damaged by force, it is difficult to remove. This provides the oil cup 2 with a good anti-slip function. That is, the oil cup 2 is mounted on the rotatable lower housing 12 of the housing 1, and will not slip or fall due to the tilt of the range hood.

[0050] The compression spring securely holds the limit buckle 31 against the lower housing 12. The compression spring is mounted on the oil cup 2 through the housing 30. This ensures that the oil cup 2 and the housing are firmly held together, preventing vibrations that could cause the oil cup 2 to constantly collide with the housing and produce unusual vibrations. Furthermore, when the range hood housing 1 vibrates, the vibration is first transmitted to the limit buckle 31, which then transmits it to the compression spring. Since the compression spring has a vibration-absorbing function, the vibration transmitted to the oil cup 2 is also reduced, further reducing its impact on the oil cup 2.

[0051] The unlocking operating member abuts or is connected to the retaining clip 31, allowing the user to apply force to deflect the retaining projection of the retaining clip 31 downward and disengage the retaining recess 122 of the housing 1. Considering that the retaining clip 31 is located a certain distance from the front side wall of the oil cup 2, and to facilitate deflection of the retaining clip 31 from the front side of the oil cup 2, the unlocking operating member of this embodiment includes a front-to-back extending operating lever 33. One end of the operating lever 33 is hingedly connected to the retaining clip 31, and the other end extends to the front side wall of the oil cup 2 and is hingedly connected to a push button 35 slidably disposed on the front side wall of the oil cup 2. It is contemplated that the operating lever 33 may also be configured to move linearly in the front-to-back direction (e.g., disposed in a front-to-back extending retaining slideway). The rear end of the operating lever 33 may directly abut against the corresponding wall surface of the retaining clip 31, without requiring a hinged connection.

[0052] A first mounting hole 222 is defined in the front sidewall of the oil cup 2, extending from front to back. Given the limited thickness of the front sidewall of the oil cup 2 and the relatively long pressing stroke of the push button 35, to ensure the push button 35 remains firmly in place within the first mounting hole 222, the front portion of the push button 35 protrudes significantly from the front sidewall of the oil cup 2, affecting the overall aesthetics. Therefore, in a preferred embodiment, a decorative panel 24 is attached to the front sidewall of the oil cup 2. The decorative panel 24 defines a second mounting hole 240 in an area opposite the first mounting hole 222. The push button 35 is movably positioned forward and backward within the first and second mounting holes 222 and 240. The installation of the decorative panel 24 ensures that the combined thickness of the front sidewall of the oil cup 2 and the decorative panel 24 matches the overall stroke of the push button 35, minimizing protrusion of the push button 35 from the second mounting hole 240 of the decorative panel 24, thus maintaining the overall aesthetics of the oil cup 2.

[0053] The front end of the housing 30 abuts against the front side wall of the oil cup 2 and has an opening opposite to the first mounting hole 222. The main body of the push button 35 is cylindrical, and the first mounting hole 222 and the second mounting hole 240 can be configured as corresponding circular hole structures.

[0054] In this embodiment, at least two limit buckles 31 can be arranged at intervals along the front-to-back direction of the housing 30, wherein there are also at least two corresponding elastic members 32, and the bottom of the housing 1 is also provided with at least two corresponding limit recesses 122. Figure 9 As shown, two limit buckles 31 are provided in the installation chamber 300 of the shell 30, and the two adjacent limit buckles 31 are connected by a connecting rod 34 extending forward and backward, wherein the rear end of the connecting rod 34 is hinged to the limit buckle 31 located on the rear side, and the front end of the connecting rod 34 is hinged to the limit buckle 31 located on the front side.

[0055] The bottom of the oil cup 2 also features an upwardly recessed handle 23 for the user to grasp. To facilitate single-handed assembly and disassembly of the oil cup 2, the handle 23 is located vertically opposite the latch assembly 3. To remove the oil cup 2, the user inserts four fingers, excluding the thumb, into the handle 23. The thumb depresses the push button 35, releasing the retaining clip 31 from the retaining recess 122 of the housing 1. Then, using the four fingers, the user can pull the oil cup 2 outwards, making it quicker and more convenient.

[0056] To remove the oil cup 2, manually depress the push button 35 approximately 0.5 mm. This push button 35 moves backward, simultaneously driving the operating lever 33 and connecting rod 34 backward. The operating lever 33 and connecting rod 34 then rotate the two stopper clips 31 counterclockwise, disengaging the stopper clips 31 from the stopper recesses 122 on the lower housing 12 and releasing the mechanical stop. The insert 221 of the oil cup 2 can now be easily pulled forward and removed. This process requires minimal force, and the oil in the oil cup 2 will not spill during installation or removal. Furthermore, because the latch assembly 3 is located on the insert 221 at the top of the oil cup 2, it does not occupy a large space within the oil cup 2 and is less likely to come into contact with the oil within, thereby extending the service life of the latch assembly 3.

Claims

1. An oil cup mounting structure for a range hood, comprising: The housing (1) has a bottom with a slot (121) extending forward and backward; An oil cup (2), the top of the oil cup (2) having an inserting piece (221) extending forward and backward and capable of being correspondingly inserted into the slot (121); The invention is characterized in that: it also includes a lock assembly (3) arranged at the bottom of the plug (221), the lock assembly (3) includes a limit buckle (31), an elastic member (32) and an unlocking operating member, the limit buckle (31) is rotatably arranged on the plug (221) around an axis extending left and right, the top of the limit buckle (31) has a limit convex portion (310) extending upward, the bottom of the housing (1) has a limit concave portion (122) for the limit convex portion to be inserted upward at a position adjacent to the slot (121), the elastic member (32) acts on the limit buckle (31) and makes the limit convex portion of the limit buckle (31) always have a tendency to deflect upward, the unlocking operating member is against or connected to the limit buckle (31), and the user applies force to drive the limit convex buckle of the limit buckle (31) to deflect downward and disengage from the limit concave portion (122).

2. The oil cup mounting structure for a range hood according to claim 1, characterized in that: The lock assembly further comprises a shell (30) having an installation chamber (300) extending forward and backward, the limiting buckle (31), the elastic member (32) and the unlocking operating member are all arranged in the installation chamber (300) of the shell (30), the inserting piece (221) has a side edge (2210) extending forward and backward and correspondingly inserted into the slot (121), the shell (30) is arranged at a position at the bottom of the inserting piece (221) away from the side edge (2210) of the inserting piece (221), and after the side edge (2210) of the inserting piece (221) is inserted into the slot (121), the shell (30) is located outside the slot (121).

3. The oil cup mounting structure for a range hood according to claim 2, characterized in that: The limiting buckle (31) is rotatably arranged on the left and right opposite side walls of the installation chamber (300) of the shell (30) via pin shafts extending left and right.

4. The oil cup mounting structure for a range hood according to claim 2, characterized in that: The unlocking operating member comprises an operating rod (33) extending forward and backward, one end of the operating rod (33) being hinged to the limit buckle (31), and the other end extending to the front side wall of the oil cup (2) and being hinged to a pressing button (35) sliding forward and backward on the front side wall of the oil cup (2).

5. The oil cup mounting structure for a range hood according to claim 4, characterized in that: A first mounting hole (222) that passes through the front and rear sides is provided on the front side wall of the oil cup (2), and the pressing button (35) is movably arranged in the first mounting hole (222) in the front and rear sides.

6. The oil cup mounting structure for a range hood according to claim 5, characterized in that: A decorative panel (24) is also attached to the front side wall of the oil cup (2), and a second mounting hole (240) is provided on the decorative panel (24) in an area opposite to the first mounting hole (222). The pressing button (35) is movably arranged in the first mounting hole (222) and the second mounting hole (240) in a forward and backward manner.

7. The oil cup mounting structure for a range hood according to claim 4, characterized in that: There are at least two limit buckles (31) arranged at intervals along the front and rear, and there are also at least two corresponding elastic members (32). The bottom of the housing (1) is provided with at least two corresponding limit recesses (122). The two adjacent limit buckles (31) are connected to each other through a connecting rod (34) extending forward and backward. The rear end of the connecting rod (34) is hinged to the limit buckle (31) located at the rear side, and the front end of the connecting rod (34) is hinged to the limit buckle (31) located at the front side.

8. The oil cup mounting structure for a range hood according to claim 2, characterized in that: The elastic member (32) is a compression spring, one end of which abuts against the limit buckle (31), and the other end of which abuts against the housing (30).

9. The oil cup mounting structure for a range hood according to claim 2, characterized in that: A first through hole (301) is provided on the top wall of the shell (30) and is penetrated vertically for the limiting protrusion (310) of the limiting buckle (31) to pass through upwards, and a second through hole (2211) is provided on the inserting piece (221) at a position corresponding to the first through hole (301) and is penetrated vertically for the limiting protrusion (310) of the limiting buckle (31) to pass through upwards.

10. The oil cup mounting structure for a range hood according to any one of claims 1 to 9, characterized in that: The bottom of the housing (1) is further provided with a limiting block (123) for limiting the backward movement of the insert (221); the rear side of the limiting protrusion (310) of the limiting buckle (31) is configured with a guide inclined surface (3101) that tilts backward from top to bottom; and the front side of the limiting protrusion (310) of the limiting buckle (31) is configured with a stopper surface (3102) that can form a limiting position with the front side wall of the limiting recess (122) in the front-to-back direction.

11. The oil cup mounting structure for a range hood according to any one of claims 1 to 9, characterized in that: The oil cup (2) comprises a transverse portion (21) and a longitudinal portion (22) extending backward from the middle of the transverse portion (21), and the top side of the longitudinal portion (22) of the oil cup (2) has a folded edge bent to the left or right, and the folded edge constitutes the insert (221).

12. The oil cup mounting structure for a range hood according to any one of claims 1 to 9, characterized in that: The bottom of the oil cup (2) also has a handle (23) that is recessed upwards for a user to hold.

13. The oil cup mounting structure for a range hood according to claim 12, characterized in that: The position of the handle portion (23) on the oil cup (2) and the position of the locking assembly (3) are opposite in the vertical direction.

14. A range hood comprising a housing (1) and an oil cup (2) disposed at the bottom of the housing (1), characterized in that: The oil cup (2) is connected to the housing (1) using the oil cup mounting structure of the range hood according to any one of claims 1 to 13.

15. The range hood according to claim 14, characterized in that: The casing (1) comprises an upper box body (11) and a lower box body (12) which is arranged at the bottom of the upper box body (11) and can rotate forward and backward. The oil cup (2) is arranged at the bottom of the lower box body (12).

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