Lifting / lowering type embedded range hood

Abstract

The present application belongs to the technical field of range hoods, and specifically relates to a lifting-type embedded range hood, including: a fume gathering hood configured to gather, and suction and exhaust an oil fume; a lifting box connected to a top portion of the fume gathering hood and communicated with an inner portion of the fume gathering hood; a main box embedded within a cabinet, the lifting box being sleeved on and slidably fitted with the main box; a lifting drive mechanism arranged on the main box and connected to the lifting box and configured to drive the lifting box to ascend and descend relative to the main box; a slide rail assembly arranged between the main box and the lifting box; a limiting micro-movement switch provided with a trigger head, arranged on the main box, electrically connected with the lifting drive mechanism, and configured to control the lifting drive mechanism to stop operation; and a position paddle arranged on the lifting box and configured to abut against the trigger head to enable the limiting micro-movement switch to perform a power-off action. The present application has an automatic ascending and descending function, and a distance between the range hood and the cooking bench can be adjusted, thereby improving the fume suction and exhaust effect of the range hood.

Description

[0001] The present application claims priority to the Chinese patent application No. 202311140172.4, filed with the China National Intellectual Property Administration on September 5, 2023 and titled "Lifting-type embedded Range Hood", which is hereby incorporated by reference in its entirety.TECHNICAL FIELD

[0002] The present application belongs to the technical field of range hoods, and specifically relates to a lifting-type embedded range hood.BTICACKGROUND

[0003] A range hood is an electrical appliance used to suction or exhaust oil-fumes during cooking.

[0004] To enhance kitchen aesthetics, some range hoods are embedded and installed inside cabinets, known as embedded range hoods.

[0005] As for the embedded range hoods in the market, most of them are semi-embedded or completely installed inside the cabinet. If the cabinet is installed at a great height, the range hood will be far away from the cooking bench, which will result in poor fume suction and exhaust effect of the range hood.SUMMARY

[0006] In order to solve the above-mentioned problems in the prior art, that is, to improve the fume suction and exhaust effects of the range hood, the present application provides a lifting-type embedded range hood. The range hood has an ascending and descending function, and can adjust a distance between the range hood and the cooking bench, thereby improving the fume suction and exhaust effects of the range hood and avoiding the problem of poor fume suction and exhaust effects of the range hood due to a large installation height of a cabinet.

[0007] The embodiment of the present application provides a lifting-type embedded range hood, including: a fume gathering hood, arranged on a top portion of a cooking bench and configured to gather, and suction and exhaust oil-fumes; a lifting box, connected to a top portion of the fume gathering hood and communicated with an inner portion of the fume gathering hood; a main box, embedded within a cabinet, the lifting box being sleeved on the main box and being slidably fitted with the main box; a lifting drive mechanism, arranged on the main box and connected to the lifting box and configured to drive the lifting box to ascend and descend relative to the main box; a slide rail assembly, arranged between the main box and the lifting box, connected with both the main box and the lifting box, and configured to enable the lifting box to smoothly ascend and descend relative to the main box; a limiting micro-movement switch, provided with a trigger head, arranged on the main box, electrically connected with the lifting drive mechanism, and configured to control the lifting drive mechanism to stop operating; and a position paddle, arranged on the lifting box and configured to abut against the trigger head to enable the limiting micro-movement switch to perform a power-off action.

[0008] By adopting the above-mentioned technical solution, the lifting drive mechanism can drive the lifting box to smoothly ascend and descend relative to the main box. During this process, the slide rail assembly smoothly guides and laterally supports the lifting box; when the position paddle abuts against and presses the trigger head, and enables the limiting micro-movement switch to perform a power-off action, the lifting drive mechanism can be automatically stopped, thereby achieving automatic stop and maintenance of the lifting box. The lifting-type embedded range hood provided by the present application has an automatic ascending and descending function, and a distance between the range hood and the cooking bench can be freely adjusted, thereby improving the fume suction and exhaust effects of the range hood and avoiding the problem of poor fume suction and exhaust effects of the range hood due to a large installation height of a cabinet.

[0009] In an optional technical solution of the above-mentioned lifting-type embedded range hood, the main box is provided with a screw rod mounting member, the screw rod mounting member has an accommodating groove, and a lug mount is provided in the accommodating groove; the lifting drive mechanism includes a lifting drive motor, a screw rod and a lifting drive member; the screw rod and the lifting drive member are both arranged in the accommodating groove, a bottom end of the screw rod is inserted into the lug mount and rotatably fitted with the lug mount, a top end of the screw rod is fixedly connected with an output shaft of the lifting drive motor, and the lifting drive motor is connected to the main box; the lifting drive member is sleeved on the screw rod and threadedly fitted with the screw rod, and the lifting drive member is connected to the lifting box; the lifting drive motor is configured to drive the lifting box to ascend and descend relative to the main box through the screw rod and the lifting drive member.

[0010] By adopting the above technical solution, the screw rod and the lifting drive member are both located in the accommodating groove inside the screw rod mounting member, and the lifting drive mechanism does not occupy a gap space between the main box and the lifting box, making the structure of the range hood more compact, simple and aesthetic. The lifting drive motor drives the screw rod to rotate, the screw rod drives the lifting drive member to move up and down along an axis of the screw rod, and the lifting drive member drives the lifting box to move up and down relative to the main box, thereby quickly and accurately realizing a free adjustment of a distance between the range hood and the cooking bench.

[0011] In an optional technical solution of the above-mentioned lifting-type embedded range hood, a slide rail assembly arranged between the main box and the lifting box is further included. The slide rail assembly includes an angled iron and a slide rail; the angled iron is arranged on an inner wall of the lifting box; the slide rail includes an inner rail and an outer rail that are slidably fitted with each other, any one of the inner rail and the outer rail is connected to the main box, and the other is connected to the lifting box.

[0012] By adopting the above technical solution, when the lifting box ascends or descends relative to the main box, the inner rail and the outer rail slide relative to each other, and the slide rail assembly can guide and laterally support the lifting box, so that an ascending and descending movement of the lifting box is stable and smooth.

[0013] In an optional technical solution of the above-mentioned lifting-type embedded range hood, a switch bracket configured to fix the limiting micro-movement switch is also provided on the main box, the switch bracket has two opposite limit surfaces, and the two limit surfaces are configured to respectively abut against a top surface and a bottom surface of the limiting micro-movement switch.

[0014] By adopting the above technical solution, the two opposite limit surfaces of the switch bracket tightly abut against the top and bottom surfaces of the limiting micro-movement switch respectively, and the switch bracket constrains a non-working surface of the limiting micro-movement switch by semi-enclosure, making the installation of the limiting micro-movement switch more stable.

[0015] In an optional technical solution of the above-mentioned lifting-type embedded range hood, a positioning column is arranged on the switch bracket, the limiting micro-movement switch is correspondingly provided with a positioning hole, and the positioning column is inserted into the positioning hole and fitted with the limiting micro-movement switch in a plug-in manner.

[0016] By adopting the above technical solution, the switch bracket realizes a completely fixed installation of the limiting micro-movement switch through a plug-in cooperation of its positioning column and the positioning hole of the limiting micro-movement switch.

[0017] In an optional technical solution of the above-mentioned lifting-type embedded range hood, a side surface of the position paddle for abutting against the trigger head is set to be a smooth convex arc surface.

[0018] By adopting the above technical solution, in the process that the position paddle gradually abuts against the trigger head, the smooth convex arc surface of the position paddle contacts the trigger head smoothly, and a contact stress between the position paddle and the trigger head is small, which can extend a service life of the position paddle and the trigger head.

[0019] In an optional technical solution of the above-mentioned lifting-type embedded range hood, the trigger head is rotatably connected with a pulley, and the pulley is configured to abut against the position paddle in a manner of rolling.

[0020] By adopting the above technical solution, the pulley makes a contact mode between the position paddle and the trigger head a rolling-contact mode, the contact between the position paddle and the trigger head is smoother, and a contact stress between the position paddle and the trigger head is small, which can extend a service life of the position paddle and the trigger head.

[0021] In an optional technical solution of the above-mentioned lifting-type embedded range hood, a limiting micro-movement switch wire-protection-cover is provided on an outer wall of the main box, and the limiting micro-movement switch wire-protection-cover is configured to lay a wire for supplying power to the limiting micro-movement switch.

[0022] By adopting the above technical solution, the limiting micro-movement switch wire-protection-cover can protect the wire that supplies power to the limiting micro-movement switch.

[0023] In an optional technical solution of the above-mentioned lifting-type embedded range hood, a front guide rail column arranged between the main box and the lifting box is also included, and the front guide rail column is connected to an inner wall of the lifting box and is slidably fitted with the main box.

[0024] By adopting the above technical solution, when the lifting box ascends and descends relative to the main box, the front guide rail column can guide and laterally support the lifting box, so that the ascending and descending movement of the lifting box is stable and smooth.

[0025] In an optional technical solution of the above-mentioned lifting-type embedded range hood, an internal wire-protection-cover arranged between the main box and the lifting box is also included. The internal wire-protection-cover is connected to an inner wall of the lifting box and slidably fitted with the main box, and the internal wire-protection-cover is configured to lay a wire.

[0026] By adopting the above technical solution, the internal wire-protection-cover has two functions: the first is to lay and thus protect the wire; the second is that when the lifting box ascends or descends relative to the main box, the internal wire-protection-cover can guide and laterally support the lifting box, so that the ascending and descending movement of the lifting box is stable and smooth.BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application. Obviously, the accompanying drawings described below are some embodiments of the present application, and for ordinary technicians in this field, other accompanying drawings can also be obtained based on these drawings without paying any creative work. FIG. 1 is a schematic structural diagram of a lifting-type embedded range hood provided in an embodiment of the present application. FIG. 2 is a schematic structural diagram mainly illustrating a lifting drive mechanism with a rear plate of a lifting box being hidden provided in an embodiment of the present application. FIG. 3 is a schematic structural diagram of an interior of a lifting box with the lifting box being hidden according to an embodiment of the present application. FIG. 4 is an exploded view of a slide rail assembly provided in an embodiment of the present application. FIG. 5 is an exploded view of a limiting micro-movement switch and a switch bracket provided in an embodiment of the present application.

[0028] Reference numerals: 100-main box; 110-screw rod mounting member; 120-lug mount; 200-lifting box; 210-front guide rail column; 220-internal wire-protection-cover; 230-bottom wiring harness adapter; 300-fume gathering hood; 400-lifting drive mechanism; 410-lifting drive motor; 420-screw rod; 430-lifting drive member; 500-slide rail assembly; 510-angled iron; 520-slide rail; 521-inner rail; 522-outer rail; 600-limiting micro-movement switch; 610-trigger head; 620-pulley; 630-positioning hole; 640-limiting micro-movement switch wire-protection-cover; 700-switch bracket; 710-limit surface; 720-positioning column; 800-position paddle; 810-paddle mounting plate.

[0029] The above-mentioned accompanying drawings have shown specific embodiments of the present application, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by referring to specific embodiments.DESCRIPTION OF EMBODIMENTS

[0030] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the protection scope of the present application.

[0031] The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that these data used are interchangeable under appropriate circumstances such that the embodiments of the present application described herein are, for example, capable of being implemented in sequences other than those illustrated or described herein.

[0032] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design scheme described in the present application as "exemplary" or "for example" should not be construed as more optional or advantageous over other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" are intended to present the relevant concepts in a specific manner.

[0033] Just as mentioned above in the background technology, embedded range hoods have been available in the market, but most of them are semi-embedded or completely installed inside the cabinet. If the cabinet is installed at a great height, the distance between the range hood and the cooking bench will be relatively big, which will result in poor fume suction and exhaust effect of the range hood.

[0034] Therefore, in order to alleviate or solve the above-mentioned technical problems, an embodiment of the present application provides a lifting-type embedded range hood. The technical solutions provided in the embodiment of the present application include a fume gathering hood, a lifting box and a main box. The fume gathering hood is configured to gather and suction and exhaust oil fume. The lifting box is connected to a top portion of the fume gathering hood and is communicated with an inner portion of the fume gathering hood. The main box is embedded within a cabinet. The lifting box is sleeved on the main box and slidably fitted with the main box. A lifting drive mechanism is provided on the main box. The lifting drive mechanism is configured to drive the lifting box to automatically ascend and descend relative to the main box. A distance between the range hood and the cooking bench can be freely adjusted, thereby improving the fume suction and exhaust effect of the range hood and avoiding the problem of poor fume suction and exhaust effect of the range hood due to a great installation height of the cabinet.

[0035] The lifting-type embedded range hood provided in the embodiment of the present application is described in detail below with reference to FIG. 1 to FIG. 5.

[0036] FIG. 1 is a schematic structural diagram of a lifting-type embedded range hood provided in an embodiment of the present application, and FIG. 2 is a schematic structural diagram mainly illustrating a lifting drive mechanism with a rear plate of a lifting box being hidden provided in an embodiment of the present application. Referring to FIG. 1 and FIG. 2, an embodiment of the present application provides a lifting-type embedded range hood, including a fume gathering hood 300, a lifting box 200 and a main box 100. The fume gathering hood 300 is configured to gather, and suction and exhaust oil fume. The lifting box 200 is fixedly connected to a top portion of the fume gathering hood 300 and is communicated with an inner portion of the fume gathering hood 300. The main box 100 is embedded and installed inside a cabinet. The lifting box 200 is sleeved on the main box 100 and slidably fitted with the main box 100. A lifting drive mechanism 400 is provided on a back side of the main box 100; and the lifting drive mechanism 400 is connected to a back side plate of the lifting box 200 and is configured to drive the lifting box 200 to automatically ascend and descend relative to the main box 100.

[0037] Specifically, the lifting drive mechanism 400 drives the lifting box 200 to smoothly ascend and descend relative to the main box 100. When the fume gathering hood 300 reaches an ideal height, the lifting drive mechanism 400 stops operation, thereby achieving automatical stop and maintenance of the fume gathering hood 300. The lifting-type embedded range hood provided in the embodiment of the present application has an automatic ascending and descending function, and a distance between the range hood and the cooking bench can be freely adjusted, thereby improving the fume suction and exhaust effect of the range hood and avoiding the problem of poor fume suction and exhaust effect of the range hood due to a large installation height of the cabinet.

[0038] Referring to FIG. 2, in some embodiments provided by the present application, exemplarily, a screw rod mounting member 110 in a long strip shape is fixedly connected to a back portion of the main box 100. The screw rod mounting member 110 is a sheet metal member. The screw rod mounting member 110 itself has an accommodating groove. A bottom portion of the accommodating groove is fixedly connected with a lug mount 120 at a bottom portion of the screw rod mounting member 110 by a screw.

[0039] Referring to FIG. 2, the lifting drive mechanism 400 includes a lifting drive motor 410, a screw rod 420 and a lifting drive member 430. The screw rod 420 and the lifting drive member 430 are both arranged in the accommodating groove. A bottom end of the screw rod 420 is inserted into the lug mount 120 and rotatably fitted with the lug mount 120. A top end of the screw rod 420 passes through a top plate of the main box 100 and is fixedly connected with an output shaft of the lifting drive motor 410, and the lifting drive motor 410 is fixedly connected to an outer surface of the top plate of the main box 100 by a screw. The lifting drive member 430 is sleeved on the screw rod 420 and is threadedly fitted with the screw rod 420, and the lifting drive member 430 is fixedly connected to the back side plate of the lifting box 200 by a screw.

[0040] Specifically, the lifting drive motor 410 drives the screw rod 420 to rotate, the screw rod 420 drives the lifting drive member 430 to move up and down along an axis of the screw rod 420, and the lifting drive member 430 drives the lifting box 200 to move up and down relative to the main box 100, thereby quickly and accurately realizing a free adjustment of the distance between the range hood and the cooking bench.

[0041] FIG. 3 is a schematic structural diagram of the interior of the lifting box with the lifting box being hidden according to an embodiment of the present application. FIG. 4 is an exploded view of a slide rail assembly provided by an embodiment of the present application. Referring to FIG. 2, FIG. 3 and FIG. 4, in some embodiments provided by the present application, exemplarily, a slide rail assembly 500 is arranged between the main box 100 and the lifting box 200. The slide rail assembly 500 includes an angled iron 510 and a slide rail 520. The angled iron 510 is fixedly connected to an internal corner on the left side and the right side of a back portion of the lifting box 200 by a screw, and the slide rail 520 connects both the main box 100 and the angled iron 510 at the same time.

[0042] Referring to FIG. 2 and FIG. 3, in some embodiments provided by the present application, exemplarily, inner walls on the left side and right side of the lifting box 200 are each fixedly connected with an internal wire-protection-cover 220 by a screw. The internal wire-protection-cover 220 is located between a side plate of the lifting box 200 and the angled iron 510. The internal wire protection cover 220 is contacted with the angled iron 510 tightly and covers a part of the angled iron 510. The internal wire-protection-cover 220 is configured to lay a wire.

[0043] Specifically, the internal wire-protection-cover 220 has two functions, on one hand, the internal wire protection cover 220 is configured to lay a wire, so as to protect the wire; on the other hand, when the lifting box 200 ascends or descends relative to the main box 100, the internal wire-protection-cover 220 can guide and laterally support the lifting box 200, so that the ascending and descending movement of the lifting box 200 is stable and smooth.

[0044] In some embodiments provided by the present application, exemplarily, front guide rail columns 210 are arranged between the main box 100 and the lifting box 200. The front guide rail columns 210 are located on the left and right sides of a front portion of the lifting box 200. The front guide rail column 210 is fixedly connected to an inner wall of the lifting box 200 by a screw, and is slidably fitted with the main box 100. Specifically, when the lifting box 200 ascends or descends relative to the main box 100, the front guide rail column 210 can guide and laterally support the lifting box 200, so that the ascending and descending movement of the lifting box 200 is stable and smooth.

[0045] Referring to FIG. 3 and FIG. 4, in some embodiments provided by the present application, exemplarily, the slide rail 520 includes an inner rail 521 and an outer rail 522 that are slidably fitted with each other. The inner rail 521 is fixedly connected to the angled iron 510 by a screw, and the outer rail 522 is fixedly connected to the side plate of the lifting box 200 by a screw. Specifically, when the lifting box 200 ascends or descends relative to the main box 100, the inner rail 521 and the outer rail 522 slide to each other, and the slide rail assembly 500 can guide and laterally support the lifting box 200, so that the ascending and descending movement of the lifting box 200 is stable and smooth.

[0046] FIG. 5 is an exploded view of a limiting micro-movement switch and a switch bracket provided by an embodiment of the present application. Referring to FIG. 2, FIG. 3 and FIG. 5, in some embodiments provided by the present application, exemplarily, two limiting micro-movement switches 600 are fixedly connected to an outer wall of one side of the main box 100. The two limiting micro-movement switches 600 are arranged along a vertical direction, corresponding to the uppermost portion and the lowermost portion of a travel of the lifting box 200 respectively. The limiting micro-movement switch 600 has a trigger head 610 that faces towards the angled iron 510. The limiting micro-movement switch 600 is electrically connected with the lifting drive mechanism 400, and is used to control the lifting drive motor 410 to stop operation. Two paddle mounting plates 810 are fixedly connected to the angled iron 510 by screws. The two paddle mounting plates 810 correspond to two limiting micro-movement switches 600 respectively. A position paddle 800 is integrally formed on the paddle mounting plate 810. The position paddle 800 is configured to abut against corresponding trigger head 610 to make corresponding limiting micro-movement switch 600 perform power-off action.

[0047] Specifically, in a process of the lifting drive mechanism 400 driving the lifting box 200 to ascend and descend relative to the main box 100, after the position paddle 800 abuts against and presses the trigger head 610 and causes the limiting micro-movement switch 600 to shut off the power, the lifting drive mechanism 400 can be automatically stopped, thereby achieving automatic stop and maintenance of the lifting box 200.

[0048] Referring to FIG. 5, in some embodiments provided by the present application, exemplarily, a side surface of the position paddle 800 for abutting against the trigger head 610 is set to a smooth convex arc surface; the trigger head 610 is rotatably connected with a pulley 620, and the pulley 620 is configured to abut against the arc-shaped position paddle 800 in a rolling manner.

[0049] Specifically, the pulley 620 enables the contact between the position paddle 800 and the trigger head 610 to be a rolling contact. When the position paddle 800 presses the trigger head 610, the contact between the position paddle 800 and the trigger head 610 is relatively smooth, and a contact stress between the position paddle 800 and the trigger head 610 is small, which can extend the service life of the position paddle 800 and the trigger head 610.

[0050] Referring to FIG. 3 and FIG. 5, in some embodiments provided by the present application, exemplarily, an outer wall of the main box 100 is also fixedly connected, by a screw, with a switch bracket 700 configured to fix the limiting micro-movement switch 600. The switch bracket 700 has two opposite limit surfaces 710, and the two limit surfaces 710 respectively abut against a top surface and a bottom surface of the limiting micro-movement switch 600. Two positioning columns 720 are integrally formed on an inner side of the switch bracket 700, and the limiting micro-movement switch 600 has two corresponding positioning holes 630. The positioning columns 720 are respectively inserted into the positioning holes 630 and fitted with the limiting micro-movement switch 600 in a plug-in manner.

[0051] Specifically, the two opposite limit surfaces 710 of the switch bracket 700 are tightly abutted against the top surface and the bottom surface of the limiting micro-movement switch 600 respectively, and the switch bracket 700 constrains a non-working surface of the limiting micro-movement switch 600 in a semi-surrounding manner. The switch bracket 700 realizes a completely fixed installation of the limiting micro-movement switch 600 through a plug-in cooperation between its positioning column 720 and the positioning hole 630 of the limiting micro-movement switch 600.

[0052] Referring to FIG. 3, in some embodiments provided by the present application, exemplarily, the outer wall of the main box 100 is fixedly connected to the limiting micro-movement switch wire-protection-cover 640 by a screw, and the limiting micro-movement switch wire-protection-cover 640 is located on the same side of the limiting micro-movement switch 600. The limiting micro-movement switch wire-protection-cover 640 is configured to lay a wire for supplying power to the limiting micro-movement switch 600. Specifically, the limiting micro-movement switch wire-protection-cover 640 can protect the wire that supplies power to the limiting micro-movement switch 600.

[0053] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment emphasizes the difference as compared to other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0054] It should be noted that the embodiments represented by "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments" etc. mentioned in the specification may include specific feature, structure or characteristic, but each embodiment is not necessarily to include the specific feature, structure or characteristic. Moreover, such phrases are not necessarily to refer to the same embodiment. In addition, when the particular feature, structure, or characteristic is described with reference to an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments whether explicitly or not explicitly described.

[0055] In general, a term should be understood, at least partially, by its usage in the context in which it is used. For example, depending at least partially on the context, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense or may be used to describe a combination of features, structures, or characteristics in a plural sense. Similarly, terms such as "a," "an," or "the" may also be construed to convey a singular reference or to convey a plural reference, depending at least partially on the context.

[0056] It should be easily understood that "on", "above", and "over" in the present disclosure should be interpreted in the broadest manner, so that "on" not only means "directly on" something but also includes the meaning of "on" something with an intervening feature or layer therebetween; and "above" or "over" not only includes the meaning of "above" or "over" something, but also may include the meaning of "above" or "over" something with no intervening feature or layer therebetween (i.e., directly on something).

[0057] In addition, for convenience of description, spatially relative terms may be used herein, for example, "under", "below", "beneath", "above", "over", etc. to describe the relationship of one element or feature relative to other elements or features as shown in the drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings. The apparatus may be otherwise oriented (rotated by 90 degrees or at other orientations) and the spatially relative descriptors used herein can be interpreted accordingly in the same manner.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements 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 application.

Claims

1. A lifting-type embedded range hood, comprising: a fume gathering hood, arranged on a top portion of a cooking bench and configured to gather, and suction and exhaust an oil fume; a lifting box, connected to a top portion of the fume gathering hood and communicated with an inner portion of the fume gathering hood; a main box, embedded within a cabinet, the lifting box being sleeved on the main box and being slidably fitted with the main box; a lifting drive mechanism, arranged on the main box and connected to the lifting box and configured to drive the lifting box to ascend and descend relative to the main box; a slide rail assembly, arranged between the main box and the lifting box, connected with both the main box and the lifting box, and configured to enable the lifting box to smoothly ascend and descend relative to the main box; a limiting micro-movement switch, provided with a trigger head, arranged on the main box, electrically connected with the lifting drive mechanism, and configured to control the lifting drive mechanism to stop operation; and a position paddle, arranged on the lifting box and configured to abut against the trigger head to enable the limiting micro-movement switch to perform a power-off action.

2. The lifting-type embedded range hood according to claim 1, wherein: the main box is provided with a screw rod mounting member, the screw rod mounting member has an accommodating groove, and a lug mount is provided in the accommodating groove; the lifting drive mechanism comprises a lifting drive motor, a screw rod and a lifting drive member; the screw rod and the lifting drive member are both arranged in the accommodating groove, a bottom end of the screw rod is inserted into the lug mount and rotatably fitted with the lug mount, a top end of the screw rod is fixedly connected with an output shaft of the lifting drive motor, and the lifting drive motor is connected to the main box; the lifting drive member is sleeved on the screw rod and threadedly fitted with the screw rod, and the lifting drive member is connected to the lifting box; the lifting drive motor is configured to drive the lifting box to ascend and descend relative to the main box through the screw rod and the lifting drive member.

3. The lifting-type embedded range hood according to claim 1 or 2, wherein the lifting-type embedded range hood also comprises the slide rail assembly arranged between the main box and the lifting box, the slide rail assembly comprising an angled iron and a slide rail; the angled iron is arranged on an inner wall of the lifting box; the slide rail comprises an inner rail and an outer rail that are slidably fitted with each other, any one of the inner rail and the outer rail is connected to the main box, and the other is connected to the lifting box.

4. The lifting-type embedded range hood according to claim 1 or 2, wherein a switch bracket configured to fix the limiting micro-movement switch is further provided on the main box, the switch bracket has two opposite limit surfaces, and the two limit surfaces are configured to respectively abut against a top surface and a bottom surface of the limiting micro-movement switch.

5. The lifting-type embedded range hood according to claim 4, wherein a positioning column is arranged on the switch bracket, the limiting micro-movement switch is correspondingly provided with a positioning hole, and the positioning column is inserted into the positioning hole and fitted with the limiting micro-movement switch in a plug-in manner.

6. The lifting-type embedded range hood according to claim 1 or 2, wherein a side surface of the position paddle for abutting against the trigger head is set to be a smooth convex arc surface.

7. The lifting-type embedded range hood according to claim 1 or 2, wherein the trigger head is rotatably connected with a pulley, and the pulley is configured to abut against the position paddle in a rolling manner.

8. The lifting-type embedded range hood according to claim 1 or 2, wherein a limiting micro-movement switch wire-protection-cover is provided on an outer wall of the main box, and the limiting micro-movement switch wire-protection-cover is configured to lay a wire for supplying power to the limiting micro-movement switch.

9. The lifting-type embedded range hood according to claim 1 or 2, wherein the lifting-type embedded range hood also comprises a front guide rail column arranged between the main box and the lifting box, and the front guide rail column is connected to an inner wall of the lifting box, and is slidably fitted with the main box.

10. The lifting-type embedded range hood according to claim 1 or 2, wherein the lifting-type embedded range hood also comprises an internal wire-protection-cover arranged between the main box and the lifting box, and the internal wire-protection-cover is connected to an inner wall of the lifting box and slidably fitted with the main box and is configured to lay a wire.

Images