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. The oil cup installation structure comprises a machine shell, the oil cup main body is provided with an insertion piece, and the insertion piece is provided with a locking position; a hanging frame is further arranged at the bottom of the machine shell, and the hanging frame is provided with an inserting groove; the inserting piece is movably arranged in the inserting groove of the hanging frame through a pressing type elastic self-locking mechanism, the pressing type elastic self-locking mechanism comprises a sliding piece, the sliding piece is provided with a locking part, and when the sliding piece moves to the locking position state, the locking part is locked. The locking part of the sliding piece moves towards the locking position of the insertion piece and forms locking fit with the locking position so as to limit the insertion piece from being separated from the insertion groove; and when the sliding piece moves to the unlocking position, the locking part of the sliding piece is far away from the locking position of the insertion piece so as to release the locking of the locking position and allow the insertion piece to be separated from the slot. The oil cup locking device has the advantages that locking and unlocking of the oil cup are convenient and easy to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field especially, relate to a range hood's oil cup mounting structure and range hood. BACKGROUND

[0002] Range hood is a kind of kitchen appliance that purifies kitchen environment. In the process of discharging oil fume flow, most of oil will be separated out, therefore, an oil cup is usually installed at the bottom of the smoke hood of range hood, to collect the separated oil, and dispose when reaching a certain amount.

[0003] The current oil cup mounting mode is mostly plug-in type, specifically like the utility model patent "range hood's oil cup mounting structure" with patent number ZL202121945764.X (authorized announcement number CN216079965U) and the utility model patent "range hood's oil cup mounting structure" with patent number ZL201921681254.9 (authorized announcement number CN211119562U) disclose this structure. When the oil cup is full of oil, the oil cup needs to be disassembled, and after pouring out the oil in the oil cup, the oil cup is reassembled to the range hood. In the process of assembly, the user moves the oil cup backward, so that the plug-in structure on the oil cup is plugged with the plug-in structure to be plugged on the range hood. The existing oil cup mounting structure still has some problems. In order to ensure the firmness of the oil cup installation, the existing oil cup hook usually has a self-locking structure, but it needs to rely on external force to forcibly take out when taking out, which is easy to cause oil spill.

[0004] Therefore, the oil cup mounting structure of the existing range hood still needs to be further improved. UTILITY MODEL CONTENTS

[0005] The first technical problem to be solved by the utility model is to provide an oil cup mounting structure of range hood, which is convenient and easy to operate in locking and unlocking action, in view of the status of the prior art.

[0006] The first technical problem to be solved by the utility model is to provide a range hood, which can lock the oil cup and is convenient and easy to operate in locking and unlocking action.

[0007] The technical scheme adopted by the utility model to solve the first technical problem is: an oil cup mounting structure of range hood, comprising:

[0008] A casing;

[0009] An oil cup body, which has a front and rear extending plug at the top opening, and the plug has a locking position;

[0010] The bottom of the casing is further provided with a hanger, and the hanger has a front and rear extending plug slot for inserting the plug.

[0011] The insert is movably arranged in the slot of the hanger by a press-type elastic self-locking mechanism, which comprises a sliding member having a locking portion thereon, and during the process of the insert being pressed into or out of the slot by external force, the sliding member can move between a locking position and an unlocking position at a certain distance apart in the front and back direction relative to the hanger.

[0012] In the state of the sliding member moving to the locking position, the locking portion of the sliding member moves towards the locking position of the insert and forms a locking cooperation with the locking position to limit the insert from being pulled out of the slot.

[0013] In the state of the sliding member moving to the unlocking position, the locking portion of the sliding member moves away from the locking position of the insert to release the locking of the locking position and allow the insert to be pulled out of the slot.

[0014] In order to ensure the flexibility and reliability of the locking and locking action between the sliding member and the insert during the front and back sliding process, the insert has a bayonet as the locking position, and the sliding member comprises a sliding block body and an elastic support arm connected to the sliding block body and capable of swinging to the side, the elastic support arm has a hook portion protruding to the side as the locking portion, and the hanger is provided with a pressing inclined surface capable of sliding cooperation with the main body or the hook portion of the elastic support arm at a position corresponding to the elastic support arm, in the state of the sliding member moving to the unlocking position, the hook portion of the elastic support arm is separated from the bayonet of the insert under the pressing of the pressing inclined surface, and in the state of the sliding member moving to the locking position, the elastic support arm is reset to the initial position and the hook portion is inserted into the bayonet of the insert.

[0015] As an improvement, the elastic support arm extends forward from the sliding block body, the hook portion of the elastic support arm protrudes upward, the main body or the hook portion of the elastic support arm has a protruding column extending to the left or right, and the pressing inclined surface on the hanger gradually inclines downward from back to front, and the protruding column is slidingly fitted at the bottom of the pressing inclined surface. It is conceivable that the hook portion of the elastic support arm can also protrude downward, left or right, and the pressing inclined surface on the hanger can be designed to incline accordingly.

[0016] In order to ensure the smooth sliding of the sliding member relative to the hanger, the sliding member and one of the hangers are provided with a front and back extending limiting rib, and the other is provided with a front and back extending limiting groove, and the limiting rib is slidingly arranged in the limiting groove.

[0017] To simplify the structure of the press-type elastic self-locking mechanism, in addition to the sliding member, the press-type elastic self-locking mechanism also includes a pull rod and an elastic member. The slider body is provided with an annular track groove, which has a stop portion. The first end of the pull rod is swayably connected to the bracket, and the second end of the pull rod has a limiting protrusion. During the back-and-forth movement of the sliding member relative to the bracket, the limiting protrusion is unidirectionally slidably constrained in the track groove. The elastic member acts on the sliding member and makes the sliding member always have a tendency to move forward.

[0018] When the insert is inserted into the slot, the second end of the pull rod abuts against the stop of the slider, thereby keeping the slider in the locked position.

[0019] When the insert is removed from the slot, the second end of the pull rod disengages from the stop of the slider, and the slider moves to the unlocked position under the action of the elastic member.

[0020] As an improvement, the front part of the track groove has a portion that is recessed from both sides to the middle and then back to serve as the stop portion.

[0021] To enable the limiting protrusion of the pull rod to move unidirectionally along the track groove, the track groove includes a first guide segment, a second guide segment, a third guide segment, and a fourth guide segment connected in a sequential loop. The first guide segment extends from back to front, and the fourth guide segment extends from front to back. At the engagement position, the first guide segment and the fourth guide segment also have a first limiting step to prevent the limiting protrusion of the pull rod from returning from the first guide segment to the fourth guide segment. The second guide segment extends from front to back, and at the engagement position, the first guide segment and the second guide segment have a limiting protrusion to prevent the pull rod from returning. The second guide segment returns to the second limiting step in the first guide segment, and the third guide segment extends from back to front. The engagement position of the second guide segment and the third guide segment is arranged at an angle to define the stop portion. The second guide segment and the third guide segment also have a third limiting step at the engagement position to prevent the limiting protrusion of the pull rod from returning from the third guide segment to the second guide segment. The engagement position between the third guide segment and the second guide segment has a fourth limiting step to prevent the limiting protrusion of the pull rod from returning from the fourth guide segment to the third guide segment.

[0022] The aforementioned elastic element can be made using various existing technologies, including compression springs, torsion springs, leaf springs, and other elastic components. However, in order to better cooperate with the aforementioned sliding element, the elastic element is a tension spring, with its first end connected to the hanger and its second end connected to the sliding element.

[0023] To better catch the oil dripping from the casing, the oil cup body is a long strip extending from left to right, with inserts at both ends of the oil cup. There are two brackets spaced apart in the left-right direction, and each bracket is equipped with a press-type elastic self-locking mechanism. The two inserts of the oil cup body are respectively installed in the slots of the two brackets.

[0024] To facilitate user monitoring of the oil level in the oil cup, the housing is also equipped with a motion mechanism for moving the mounting bracket relative to the housing in a left-right direction. The oil cup body is mounted on the mounting bracket and, as the position of the mounting bracket changes, has at least a first state and a second state:

[0025] In the first state, the left or right side of the top opening of the oil cup body moves out of the vertical projection of the housing, making the oil inside the oil cup body visible to the outside.

[0026] In the second state, the entire body of the oil cup is located below the housing, and the top opening of the oil cup body is covered by the housing and is not visible to the outside.

[0027] When it's necessary to check the oil level in the oil cup, a moving mechanism can shift the oil cup body to the side relative to the casing, allowing the oil level inside the cup to be clearly and intuitively observed. This also facilitates the disassembly and installation of the oil cup. Conversely, when it's not necessary to check the oil level or disassemble the oil cup, the oil cup body is hidden at the bottom of the casing, maintaining the overall aesthetic appeal of the range hood.

[0028] Generally, the motion mechanism can be a motion device that can drive the hanger to move linearly in the left and right direction, such as a device that combines a drive motor with a lead screw and slider transmission mechanism or an electric push rod, etc. Alternatively, it can be a motion device that drives the hanger (oil cup) to adjust its position in the left and right direction by rotation. Preferably, the motion mechanism includes:

[0029] Drive motor;

[0030] The first swing arm has its first end connected to the output shaft of the drive motor and rotates around the vertically extending first axis under the drive of the drive motor, and its second end is rotatably connected to one of the brackets.

[0031] The second swing arm has its first end rotatably connected to the housing via a vertically extending second shaft, and its second end rotatably connected to another hanging bracket.

[0032] The linkage rod extends in the left and right direction, with one end connected to the left-side bracket and the other end connected to the right-side bracket.

[0033] To avoid the risk of the oil cup falling off, a support bracket is provided on the left or right side of the bottom of the housing, and the support bracket has a storage groove for receiving one end of the oil cup body.

[0034] The technical solution adopted by this utility model to solve the second technical problem is: a range hood, including the oil cup installation structure of the range hood described above.

[0035] Compared with the prior art, the advantages of this utility model are as follows: The insert of the oil cup body is movably mounted in the slot of the hanger through a press-type elastic self-locking mechanism. When the user presses the oil cup, the sliding member can switch between the locked and unlocked positions. When the sliding member is in the locked position, the locking part of the sliding member locks with the locking position of the insert, locking the oil cup tightly and preventing it from coming out of the slot, thus ensuring the reliable installation of the oil cup. When the sliding member is in the unlocked position, the locking part of the sliding member moves away from the locking position of the insert, releasing the lock. The insert can then be easily and effortlessly removed from the slot, preventing oil spillage due to excessive force when removing the oil cup, thus improving the user experience. In the preferred embodiment, under the action of the elastic element of the press-type elastic self-locking mechanism, the sliding member moves forward, and the insert of the oil cup also moves forward a portion, making it easier for the user to pick up the oil cup. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of the range hood according to an embodiment of the present utility model (the oil cup body is in the second state);

[0037] Figure 2 This is a three-dimensional structural diagram of the oil cup mounting structure according to an embodiment of the present utility model (the main body of the oil cup is in the second state);

[0038] Figure 3 This is a three-dimensional structural diagram of the oil cup mounting structure according to an embodiment of the present utility model (the main body of the oil cup is in a separated state);

[0039] Figure 4 This is a three-dimensional structural diagram of the left side portion of the oil cup mounting structure according to an embodiment of the present utility model;

[0040] Figure 5 This is a three-dimensional structural diagram of the right side portion of the oil cup mounting structure according to an embodiment of the present utility model;

[0041] Figure 6 This is a three-dimensional structural diagram of the range hood according to an embodiment of the present utility model (the oil cup body is in the first state);

[0042] Figure 7 This is a three-dimensional structural diagram of the oil cup mounting structure according to an embodiment of the present utility model (the main body of the oil cup is in the first state);

[0043] Figure 8 This is a three-dimensional structural diagram of the upper frame of the oil cup mounting structure according to an embodiment of the present utility model (the sliding part is in the unlocked state);

[0044] Figure 9 This is a three-dimensional structural diagram of the upper frame of the oil cup mounting structure according to an embodiment of the present utility model, after disassembly (the sliding part is in the locked state);

[0045] Figure 10 This is an exploded view of the oil cup mounting structure according to an embodiment of the present utility model;

[0046] Figure 11 This is a three-dimensional structural diagram of the sliding component of the oil cup mounting structure according to an embodiment of the present invention.

[0047] Figure 12 This is a three-dimensional structural diagram of the lower seat of the oil cup mounting structure according to an embodiment of the present utility model. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0049] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0050] Figures 1-12This invention illustrates the oil cup mounting structure of a range hood and a preferred embodiment of the range hood. The range hood includes a housing 10 and a centrifugal fan housed within the housing 10. The housing 10 generally includes a fan frame 11 and a smoke collection hood 12 located at the bottom of the fan frame 11. The inner cavity of the fan frame 11 communicates with the inner cavity of the smoke collection hood 12. An air inlet is provided on the front side wall of the smoke collection hood 12, allowing external fumes to enter the hood 12. The centrifugal fan, located within the fan frame 11, generates negative pressure during operation, drawing external fumes into the smoke collection hood 12 through the air inlet. An oil filter is also provided at the air inlet of the smoke collection hood 12 for filtering fumes. An oil cup, which is a long, horizontally extending strip, is located at the bottom of the smoke collection hood 12 to collect oil stains flowing down from it. The front of the smoke hood 12 is also provided with a smoke baffle 14 that can deflect back and forth relative to the smoke hood 12. The smoke baffle 14 is connected to the main body of the smoke hood 12 via a hinge mechanism. Specifically, it can deflect forward to open the air inlet and deflect backward to block and close the air inlet. The hinge mechanism used to drive the deflection of the smoke baffle 14 can be a conventional hinge mechanism in the prior art, which will not be described in detail here.

[0051] The top of the oil cup body 15 is open and it is detachably mounted on the bottom of the housing 10. Specifically, there are brackets 20 on both the left and right sides of the bottom of the housing 10, and each bracket 20 has a slot 200 extending in the front-to-back direction. Correspondingly, the top edges of the left and right sides of the oil cup body 15 have inserts 151 that fold towards the center of the oil cup body 15. The two inserts 151 can be inserted into the two slots 200 from front to back to install the oil cup body 15, and can be removed from the slots 200 to remove the oil cup body 15. Adapting to the two inserts 151 of the oil cup body 15, the side openings of the slots 200 of the two brackets 20 face opposite directions, that is, the side opening of the slot 200 of the left bracket 20 faces left, and the side opening of the slot 200 of the right bracket 20 faces right.

[0052] The bottom wall of the slot 200 also has a limiting protrusion 201 protruding into the slot 200. The limiting protrusion 201 extends in the left-right direction, and its cross-section (vertical section cut in the front-back direction) is an arc-shaped structure that gradually bulges upward from the front and back sides to the middle. After the insert 151 of the oil cup body 15 is inserted into the slot 200, the limiting protrusion 201 abuts against the bottom wall of the insert to ensure the secure installation of the oil cup insert and avoid wobbling or easy dislodgement from the slot 200.

[0053] The hanging bracket 20 in this embodiment includes an upper bracket 22 and a lower bracket 21 connected together by screws. The upper bracket 22 and the lower bracket 21 define the aforementioned slot 200. The insert 151 of the oil cup body 15 is movably disposed in the slot 200 of the hanging bracket 20 by a press-type elastic self-locking mechanism. That is, the user can lock the insert 151 by pressing the side of the oil cup, and unlock the insert 151 by pressing the side of the oil cup again, and pop the oil cup body 15 forward.

[0054] See Figures 8-12 The press-type elastic self-locking mechanism includes a sliding member 40, a pull rod 43, and an elastic member 44.

[0055] During the process of inserting or removing the insert 151 from the slot 200 under external force, the sliding member 40 can move relative to the bracket 20 between a locked position and an unlocked position at a certain distance in the front-back direction. The sliding member 40 has a locking part 421, and the insert 151 of the oil cup body 15 has a locking position 1510. When the sliding member moves to the locked position, the locking part 421 of the sliding member 40 moves toward the locking position 1510 of the insert 151 and forms a locking engagement with the locking position 1510 to prevent the insert 151 from being dislodged from the slot 200; when the sliding member 40 moves to the unlocked position, the locking part 421 of the sliding member 40 moves away from the locking position 1510 of the insert 151, releasing the locking of the locking position 1510 and allowing the insert 151 to be dislodged from the slot 200.

[0056] The slider 40 includes a slider body 41 and an elastic support arm 42 connected to the slider body 41 and capable of swinging to the side. The elastic support arm 42 has a hook portion protruding to the side as a locking portion 421. The insert 151 has a slot as a locking position 1510. The slot is a closed hole or a semi-closed opening.

[0057] One of the sliding member 40 and the bracket 20 is provided with a front-to-back extending limiting rib, and the other is provided with a front-to-back extending limiting groove. Specifically, see [link to details]. Figure 11 and Figure 12 The lower frame 21 has an upwardly protruding limiting rib 211, while the bottom of the slider body 41 has an upwardly recessed limiting groove 400. The limiting rib 211 is slidably disposed in the limiting groove 400, thereby ensuring that the slider 40 slides smoothly relative to the hanger 20.

[0058] See also Figure 11The upper part of the slider body 41 is provided with an annular track groove 410. The front part of the track groove 410 has a portion that is recessed from both sides to the middle and back as a stop part 419. The first end of the pull rod 43 is swayably connected to the bracket 20. The second end of the pull rod 43 has a limiting protrusion 431. Specifically, both ends of the pull rod 43 have downwardly bent hooks. The hook at the first end is rotatably disposed in the insertion hole of the lower bracket 21, and the hook at the second end is constrained in the track groove 410. During the back-and-forth movement of the slider 40 relative to the bracket 20, the second end of the pull rod 43 can slide unidirectionally along the track groove 410. More specifically, the track groove 410 includes a first guide section 411, a second guide section 412, a third guide section 413, and a fourth guide section 414 that are connected in sequence. The first guide segment 411 extends from rear to front, and the fourth guide segment 414 extends from front to rear. At the joint position, the first guide segment 411 and the fourth guide segment 414 also have a limiting protrusion 431 for preventing the pull rod from returning from the first guide segment 411 to the fourth guide segment 414, and a first limiting step 415 for preventing the pull rod from returning from the second guide segment 412 to the first guide segment 411. The second guide segment 412 extends from front to rear, and at the joint position, the first guide segment 411 and the second guide segment 412 have a limiting protrusion 431 for preventing the pull rod from returning from the second guide segment 412 to the first guide segment 411, and a second limiting step 416 for preventing the pull rod from returning from the second guide segment 412 to the first guide segment 411. The third guide section 413 extends from rear to front. The engagement position of the second guide section 412 and the third guide section 413 is arranged at an angle to define the aforementioned stop 419. At the engagement position of the second guide section 412 and the third guide section 413, there is also a limiting protrusion 431 for preventing the pull rod from returning from the third guide section 413 to the second guide section 412, and a third limiting step 417 for preventing the pull rod from returning from the fourth guide section 414 to the third guide section 413. At the engagement position between the third guide section 413 and the second guide section 412, there is a limiting protrusion 431 for preventing the pull rod from returning from the fourth guide section 414 to the third guide section 413, and a fourth limiting step 418 for preventing the pull rod from returning to the third guide section 413. The bottom surface of the first guide section 411 of the track groove 410 gradually rises toward the second guide section 412, the bottom surface of the second guide section 412 of the track groove 410 gradually rises toward the third guide section 413, the bottom surface of the third guide section 413 of the track groove 410 gradually rises toward the fourth guide section 414, and the bottom surface of the fourth guide section 414 of the track groove 410 gradually rises toward the first guide section 411.

[0059] The elastic element 44 is a tension spring. The first end of the tension spring is connected to the hanger 20, and the second end is connected to the slider 40. Specifically, the tension spring is located on the front side of the slider body 41. The front of the slider body 41 has a first connecting post for the first end of the tension spring to be held, and the lower frame 21 has a second connecting post for the second end of the spring to be held. Under the elastic force of the tension spring, the slider 40 always has a tendency to move forward.

[0060] The lower frame 21 of the hanger 20 has a pressing slope 210 at a position corresponding to the elastic support arm 42, which can slide and engage with the body or hook of the elastic support arm 42. Specifically, the elastic support arm 42 extends forward from the slider body 41, the hook of the elastic support arm 42 protrudes upward, and the body or hook of the elastic support arm 42 has a protruding post 422 extending to the left or right. The pressing slope 210 on the hanger 20 gradually slopes downward from back to front, and the protruding post 422 slides and engages at the bottom of the pressing slope 210.

[0061] During the process of the user pressing the left or right side of the oil cup and releasing it, the insert 151 of the oil cup body 15 first drives the slider 40 to move backward, and then moves forward a certain distance under the action of the elastic member 44. The second end of the pull rod 43 moves unidirectionally along the first guide section 411 and the second guide section 412 of the track groove 410 to the stop part 419. At this time, the slider 40 is in the locked position. At the same time, the protrusion 422 of the elastic support arm 42 of the slider 40 also moves backward along the pressing slope 210. The elastic support arm 42 returns to the initial position and the hook of the elastic support arm 42 is engaged in the slot of the insert 151, thereby locking the insert 151 of the oil cup body 15. As the user presses the left or right side of the oil cup again and releases it, the insert 151 of the oil cup body 15 first drives the slider 40 to move backward, and then moves forward under the action of the elastic member 44. The second end of the lever 43 disengages from the stop part 419, and then moves unidirectionally along the third guide section 413 and the fourth guide section 414 of the track groove 410. When the slider 40 moves forward to the limit position, it is in the unlocked position. At the same time, during this process, the protrusion 422 of the elastic support arm 42 of the slider 40 also moves forward along the pressing slope 210. The elastic support arm 42 overcomes its own elasticity and swings downward until the hook of the elastic support arm 42 disengages from the latch of the insert 151, releasing the hook of the elastic support arm 42 from locking the insert 151 of the oil cup body 15. The spring of the oil cup body 15 automatically pops forward a distance, making it convenient for the user to take the oil cup.

[0062] The bottom wall of the housing 10 is also provided with a motion mechanism, which is used to drive the bracket 20 to move relative to the housing 10 in the left and right direction. The oil cup body 15 is mounted on the bracket 20 and has at least a first state and a second state as the position of the bracket 20 changes: In the first state, the left or right side of the top opening of the oil cup body 15 moves out of the vertical projection of the housing 10, making the oil inside the oil cup body 15 visible to the outside. Figure 1 and Figure 6As shown, in this embodiment, the oil cup body 15 moves to the right and protrudes from the right side of the housing 10. In the second state, the entire oil cup body 15 is located below the housing 10, and the top opening of the oil cup body 15 is covered by the housing 10 and not visible from the outside. Similarly, in this embodiment, the oil cup body 15 moves from right to left to switch from the first state to the second state. In the second state, the oil cup body 15 is hidden at the bottom of the housing 10, ensuring the overall aesthetics of the range hood.

[0063] The motion mechanism includes a drive motor 31, a first swing arm 321, a second swing arm 322, and a linkage rod 34.

[0064] The drive motor 31 is located inside the housing 10, and its output shaft extends vertically and is connected to the vertically positioned first shaft 331, thereby driving the first shaft 331 to rotate around its own axis. Specifically, the first shaft 331 extends from bottom to top through the bottom wall of the housing 10 and into the housing 10, connecting to the output shaft of the drive motor 31. The lower end of the first shaft 331 is connected to the first end of the first swing arm 321, thereby driving the first swing arm 321 to rotate around the first shaft 331. The aforementioned drive motor 31 being located inside the housing 10 also allows the oil cup body 15 to be as close as possible to the bottom of the housing 10, ensuring the overall aesthetics of the range hood. Both the first swing arm 321 and the second swing arm 322 are horizontally positioned. The first end of the first swing arm 321 is connected to the first shaft 331, and the second end is rotatably connected to the left-side bracket 20. The first end of the second swing arm 322 is rotatably connected to the housing 10 via the vertically extending second shaft 332, and the second end is rotatably connected to the right-side bracket 20. A bearing 35 is installed on the bottom right side of the housing 10. The upper end of the second shaft 332 passes through the bearing 35 and can rotate relative to the housing 10. The lower end of the second shaft 332 is connected to the first end of the second swing arm 322. A linkage rod 34 extends in the left-right direction. One end of the linkage rod 34 is connected to the left-side bracket 20, and the other end is connected to the right-side bracket 20. The linkage rod 34 allows the two brackets 20 to move to any position without changing the orientation of their slots 200, facilitating the installation and removal of the oil cup. Figure 3 As shown, in the first state, the oil cup body 15 extends left and right, with the second end of the first arm 321 located to the left of the first end, and the second end of the second arm 322 located to the left of the first end. The oil cup body 15 is also positioned slightly rearward, hidden at the bottom of the housing 10. Figure 7As shown, in the second state, both the first swing arm 321 and the second swing arm 322 extend forward and backward, with the second end of the first swing arm 321 located in front of the first end, and the second end of the second swing arm 322 located in front of the first end. This design of the motion mechanism allows the hanger 20 and the oil cup to move not only in the left-right direction but also in the forward-backward direction. When the oil cup body 15 is in the first state, its position can also move forward a certain distance, making it easier for the user to access and remove the oil cup.

[0065] To prevent the oil cup from falling off due to its weight, a support bracket 121 can be provided on either the left or right side of the bottom of the housing 10. The support bracket 121 has a storage groove therein for housing one end of the oil cup body 15. Figure 6 As shown, this embodiment has one support bracket 121, which is located on the bottom left side of the housing 10, that is, on the side where the drive motor 31 of the motion mechanism is located. The front and right sides of the support bracket 121 are open to facilitate the left end of the oil cup body 15 to move to the right and forward, and to avoid interference problems.

[0066] When it is necessary to check the oil level in the oil cup, the moving mechanism can shift the oil cup body 15 to the side relative to the housing 10 by a certain distance, making the oil level inside the oil cup body 15 clearly and intuitively visible, and also facilitating the disassembly and installation of the oil cup. Meanwhile, when it is not necessary to check the oil level or disassemble the oil cup, the oil cup body 15 is hidden at the bottom of the housing 10, ensuring the overall aesthetics of the range hood.

Claims

1. An oil cup mounting structure for a range hood, comprising: Casing (10); The oil cup body (15) has a front-to-back extending insert (151) at its top opening, and the insert (151) has a locking position (1510); The feature is that: the bottom of the housing (10) is also provided with a hanging bracket (20), and the hanging bracket (20) has a slot (200) extending back and forth for inserting the insert (151); The insert (151) is movably disposed in the slot (200) of the bracket (20) by a press-type elastic self-locking mechanism. The press-type elastic self-locking mechanism includes a slider (40) with a locking part (421). During the process of the insert (151) being pressed into or out of the slot (200) by an external force, the slider (40) can move relative to the bracket (20) between a locked position and an unlocked position that are spaced a certain distance apart in the front-back direction. When the slider is moved to the locked position, the locking part (421) of the slider (40) moves toward the locking position (1510) of the insert (151) and forms a locking engagement with the locking position (1510) to restrict the insert (151) from dislodging from the slot (200); When the slider (40) is moved to the unlocked position, the locking part (421) of the slider (40) moves away from the locking position (1510) of the insert (151) and releases the locking position (1510) of the insert (151) to allow the insert (151) to come out of the slot (200).

2. The oil cup installation structure of the range hood according to claim 1, characterized in that: The insert (151) has a latch as the locking position (1510). The sliding member (40) includes a slider body (41) and an elastic support arm (42) connected to the slider body (41) and capable of swinging to the side. The elastic support arm (42) has a hook protruding to the side as the locking part (421). The bracket (20) has a pressing slope (210) at a position corresponding to the elastic support arm (42) that can slide and engage with the body or hook of the elastic support arm (42). When the sliding member (40) moves to the unlocked position, the elastic support arm (42) is pressed by the pressing slope (210) to disengage its hook from the latch of the insert (151). When the sliding member (40) moves to the locked position, the elastic support arm (42) returns to the initial position and its hook engages in the latch of the insert (151).

3. The oil cup installation structure of the range hood according to claim 2, characterized in that: The elastic support arm (42) extends forward from the slider body (41), the hook of the elastic support arm (42) protrudes upward, and the body or hook of the elastic support arm (42) has a protruding post (422) extending to the left or right. The pressure slope (210) on the bracket (20) gradually slopes downward from back to front, and the protruding post (422) slides into the bottom of the pressure slope (210).

4. The oil cup mounting structure of the range hood according to claim 2, characterized in that: One of the sliding member (40) and the bracket (20) is provided with a front-to-back extending limiting rib, and the other is provided with a front-to-back extending limiting groove. The limiting rib is slidably disposed in the limiting groove.

5. The oil cup mounting structure of the range hood according to claim 2, characterized in that: In addition to the sliding member (40), the press-type elastic self-locking mechanism also includes a pull rod (43) and an elastic member (44). The slider body (41) is provided with an annular track groove (410), and the track groove (410) has a stop part (419). The first end of the pull rod (43) is swayably connected to the bracket (20), and the second end of the pull rod (43) has a limiting protrusion (431). During the back-and-forth movement of the sliding member (40) relative to the bracket (20), the limiting protrusion (431) is unidirectionally slidably constrained in the track groove (410). The elastic member (44) acts on the sliding member (40) and makes the sliding member (40) always have a tendency to move forward. When the insert (151) is inserted into the slot (200), the second end of the pull rod (43) abuts against the stop (419) of the slider (40), thereby keeping the slider in the locked position. When the insert (151) exits the slot (200), the second end of the pull rod (43) disengages from the stop (419) of the slider (40), and the slider (40) moves to the unlock position under the action of the elastic member (44).

6. The oil cup mounting structure of the range hood according to claim 5, characterized in that: The front part of the track groove (410) has a portion that is recessed from both sides to the middle and then back as the stop portion (419).

7. The oil cup mounting structure of the range hood according to claim 6, characterized in that: The track groove (410) includes a first guide section (411), a second guide section (412), a third guide section (413), and a fourth guide section (414) connected in a circular manner. The first guide section (411) extends from rear to front, and the fourth guide section (414) extends from front to rear. At the joint position, the first guide section (411) and the fourth guide section (414) also have a first limiting step (415) for preventing the pull rod from returning from the first guide section (411) to the fourth guide section (414). The second guide section (412) extends from front to rear. At the joint position, the first guide section (411) and the second guide section (412) have a limiting protrusion (431) for preventing the pull rod from returning from the second guide section (412) to the fourth guide section (414). The guide section (411) has a second limiting step (416), the third guide section (413) extends from back to front, the second guide section (412) and the third guide section (413) are arranged at an angle to define the stop (419), the second guide section (412) and the third guide section (413) at the joint position also have a limiting protrusion (431) for preventing the pull rod from returning from the third guide section (413) to the second guide section (412) with a third limiting step (417), the joint position between the third guide section (413) and the second guide section (412) has a limiting protrusion (431) for preventing the pull rod from returning from the fourth guide section (414) to the third guide section (413) with a fourth limiting step (418).

8. The oil cup mounting structure of the range hood according to claim 5, characterized in that: The elastic element (44) is a tension spring, with its first end connected to the hanger (20) and its second end connected to the sliding element (40).

9. The oil cup mounting structure of the range hood according to any one of claims 1 to 8, characterized in that: The oil cup body (15) is a long strip extending from left to right. Both ends of the oil cup are provided with inserts (151). There are two brackets (20) arranged at intervals along the left and right directions. Both brackets (20) are provided with the press-type elastic self-locking mechanism. The two inserts (151) of the oil cup body (15) are respectively installed in the slots (200) of the two brackets (20).

10. The oil cup mounting structure of the range hood according to claim 9, characterized in that: The housing (10) is also provided with a motion mechanism for driving the bracket (20) to move relative to the housing (10) in the left and right direction. The oil cup body (15) is mounted on the bracket (20) and has at least a first state and a second state as the position of the bracket (20) changes: In the first state, the left or right side of the top opening of the oil cup body (15) moves out of the vertical projection of the housing (10) so that the oil inside the oil cup body (15) is visible to the outside. In the second state, the entire oil cup body (15) is located below the housing (10), and the top opening of the oil cup body (15) is covered by the housing (10) and is not visible to the outside.

11. The oil cup mounting structure of the range hood according to claim 10, characterized in that: The motion mechanism includes: Drive motor (31); The first swing arm (321) has its first end connected to the output shaft of the drive motor (31) and rotates around the vertically extending first axis (331) under the drive of the drive motor (31). Its second end is rotatably connected to one of the hangers (20). The second swing arm (322) has its first end rotatably connected to the housing (10) via a vertically extending second shaft (332), and its second end rotatably connected to another hanging bracket (20); The linkage rod (34) extends in the left and right direction, with one end connected to the left bracket (20) and the other end connected to the right bracket (20).

12. The oil cup mounting structure of the range hood according to claim 10, characterized in that: A support bracket (121) is provided on the left or right side of the bottom of the housing (10), and the support bracket (121) has a storage groove for receiving one end of the oil cup body (15).

13. A range hood, characterized in that: The range hood includes the oil cup mounting structure according to any one of claims 1 to 12.

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