Lifting mechanism and intelligent wall cupboard

Abstract

The utility model discloses a lifting mechanism which comprises a machine base, a lifting frame, a lifting driving assembly, a control module and a displacement sensor. The lifting frame is arranged on the machine base in a lifting mode and provided with an elastic deformation piece. The lifting driving assembly is arranged between the machine base and the lifting frame. The lifting driving assembly is connected with the elastic deformation piece and can pull the lifting frame to move through the elastic deformation piece. The control module is electrically connected with the lifting driving assembly; the displacement sensor is arranged on the lifting frame and electrically connected with the control module. The displacement sensor is used for detecting the position of the detection area of the elastic deformation piece. Whether the lifting frame is blocked or not is judged by detecting whether the position of the detection area of the elastic deformation piece is suddenly changed or not through the displacement sensor, the displacement sensor does not need to be pressed, the risk of damage to the displacement sensor is reduced, and therefore the lifting mechanism has the better service life. The utility model further discloses an intelligent wall cupboard adopting the lifting mechanism.

Description

Technical Field

[0001] The utility model relates to the field of lifting mechanisms, in particular to a lifting mechanism and an intelligent wall cabinet. Background Art

[0002] Some existing intelligent furniture, such as smart wall cabinets, use a lifting mechanism to raise and lower storage containers, making use of elevated space in a room. A conventional lifting mechanism consists of a base, a lifting frame, a lifting drive assembly, and a control module. The lifting frame can be raised and lowered along the base, the lifting drive assembly drives the lifting frame, and the control module controls the operation of the lifting drive assembly.

[0003] When a lift is in motion, it can sometimes collide with objects or people, posing a safety hazard. One existing solution involves installing a pressure detector on the lift. When the pressure detector is pressed, it indicates that the lift is experiencing an obstruction, and the control module then controls the lift drive assembly to stop or reverse its motion. However, the lift drive assembly typically exerts a high pulling force to meet the lift's load requirements, which results in high pressure on the pressure detector, making it susceptible to damage and shortening the lift mechanism's service life. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention proposes a lifting mechanism that can have a longer service life.

[0005] The utility model also discloses an intelligent wall cabinet with the lifting mechanism.

[0006] According to an embodiment of the first aspect of the present invention, a lifting mechanism comprises a base, a lifting frame, a lifting drive assembly, a control module, and a displacement sensor. The lifting frame is escalably mounted on the base, and is provided with an elastic deformable member. The lifting drive assembly is disposed between the base and the lifting frame, connected to the elastic deformable member and capable of pulling the lifting frame to move via the elastic deformable member. The control module is electrically connected to the lifting drive assembly. The displacement sensor is disposed on the lifting frame and electrically connected to the control module, and is configured to detect the position of a detection area of ​​the elastic deformable member.

[0007] The lifting mechanism according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: the lifting drive assembly pulls the elastic deformable part so that the distance between the elastic deformable part and the displacement sensor is usually stable during the lifting of the lifting frame relative to the machine base. When the lifting frame collides, the load of the lifting frame suddenly changes, causing the elastic deformable part to deform rapidly. Therefore, the displacement sensor is used to detect whether the position of the detection area of ​​the elastic deformable part suddenly changes to determine whether the lifting frame encounters an obstacle. The displacement sensor does not need to be pressurized, which reduces the risk of damage to the displacement sensor, thereby extending the service life of the lifting mechanism.

[0008] According to some embodiments of the present invention, the elastic deformation member is an elastic plate, one end of the elastic plate is fixed to the lifting frame, and the other end of the elastic plate is connected to the lifting drive assembly.

[0009] According to some embodiments of the present utility model, the elastic plate includes a first transverse plate section, a second transverse plate section and a vertical plate section, the first transverse plate section and the second transverse plate section are both arranged in the horizontal direction, the vertical plate section is arranged in the up and down direction, the lower end of the vertical plate section is connected to one end of the first transverse plate section, the upper end of the vertical plate section is connected to one end of the second transverse plate section, the lifting drive assembly is connected to the other end of the second transverse plate section, the first transverse plate section is connected to the lifting frame, the displacement sensor is opposite to the second transverse plate section in the up and down direction, and the detection area is located in the second transverse plate section.

[0010] According to some embodiments of the present invention, the lifting drive assembly includes a reel, a rotation drive and a flexible belt. The reel is rotatably arranged on the lifting frame, one end of the flexible belt is arranged on the reel, the machine base is provided with a pulley, the flexible belt is wound around the pulley, the other end of the flexible belt is connected to the elastic deformation part, and the rotation drive is arranged on the lifting frame and is used to drive the reel to rotate.

[0011] According to some embodiments of the present invention, the reel and the elastic deformation part are arranged at intervals in the left and right directions, and the machine base is provided with two pulleys, one of the pulleys is opposite to the reel in the up and down directions, and the other pulley is opposite to the elastic deformation part in the up and down directions, and the flexible belt is wound around the two pulleys in sequence.

[0012] According to some embodiments of the present invention, the machine base is provided with an upper crossbeam, and a safety component is provided between the upper crossbeam and the lifting frame, and the safety component is used to limit the maximum distance between the upper crossbeam and the lifting frame.

[0013] According to some embodiments of the present invention, the safety component includes a limiting belt and a stop block, the upper end of the limiting belt is connected to the upper crossbeam, the stop block is arranged at the lower end of the limiting belt, the lifting frame is provided with a clearance hole, the limiting belt is passed through the clearance hole, and the cross-sectional area of ​​the stop block is larger than the cross-sectional area of ​​the clearance hole.

[0014] According to some embodiments of the present invention, the base is provided with at least two slide rails in the up and down directions, the lifting frame is provided with the same number of slide grooves as the slide rails, and the slide rails are slidably connected to the corresponding slide grooves; the notches of at least two of the slide grooves are perpendicular to each other.

[0015] According to some embodiments of the present invention, limit sensors are provided on the upper and lower parts of the lifting frame, and the limit sensors are electrically connected to the control module.

[0016] The intelligent wall cabinet according to the embodiment of the second aspect of the present invention includes the above-mentioned lifting mechanism.

[0017] The smart wall cabinet according to the embodiment of the second aspect of the present invention has at least the following beneficial effects: due to the adoption of the above-mentioned lifting mechanism, the smart wall cabinet is safer and has a longer service life.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a rear view schematic diagram of the lifting mechanism of an embodiment of the utility model;

[0021] Figure 2 This is a three-dimensional schematic diagram of a partial structure of a lifting mechanism according to an embodiment of the present utility model;

[0022] Figure 3 For the embodiment of the utility model Figure 2 A local enlarged schematic diagram of point A;

[0023] Figure 4 For the embodiment of the utility model Figure 2 A local enlarged schematic diagram of point B.

[0024] Reference numerals:

[0025] Machine base 100, pulley 110, upper beam 120;

[0026] Lifting frame 200, elastic deformable member 210, first transverse plate segment 211, second transverse plate segment 212, vertical plate segment 213, and clearance hole 220;

[0027] Lifting drive assembly 300, retractable reel 310, rotary drive 320, flexible belt 330;

[0028] Displacement sensor 400;

[0029] Safety component 500 , limiting belt 510 , and stop block 520 . DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figures 1 to 4, which is a lifting mechanism according to an embodiment of the present invention, includes a base 100, a lifting frame 200, a lifting drive assembly 300, a control module, and a displacement sensor 400. The lifting frame 200 is escalably mounted on the base 100 and is provided with an elastic deformation member 210. The lifting drive assembly 300 is disposed between the base 100 and the lifting frame 200, is connected to the elastic deformation member 210, and can pull the lifting frame 200 to move via the elastic deformation member 210. The control module is electrically connected to the lifting drive assembly 300. The displacement sensor 400 is disposed on the lifting frame 200 and is electrically connected to the control module. The displacement sensor 400 is used to detect the position of the detection area of ​​the elastic deformation member 210.

[0035] The lifting drive assembly 300 pulls the elastic deformable part 210 so that the distance between the elastic deformable part 210 and the displacement sensor 400 is usually stable during the lifting of the lifting frame 200 relative to the machine base 100. When the lifting frame 200 collides, the load of the lifting frame 200 suddenly changes, causing the elastic deformable part 210 to deform rapidly. Therefore, the displacement sensor 400 detects whether the position of the detection area of ​​the elastic deformable part 210 suddenly changes to determine whether the lifting frame 200 encounters an obstacle. The displacement sensor 400 does not need to be pressurized, reducing the risk of damage to the displacement sensor 400, thereby extending the service life of the lifting mechanism.

[0036] Specifically, the control module may be implemented by, for example, a circuit board, a single chip microcomputer or other structures with a control circuit, and those skilled in the art may configure the structure according to actual needs.

[0037] In this embodiment, the elastic deformable member 210 is an elastic plate, one end of which is fixed to the lifting frame 200, and the other end of which is connected to the lifting drive assembly 300. The elastic deformable member 210 employs an elastic plate. When subjected to force, the plate-shaped member undergoes significant elastic deformation, facilitating detection of positional changes in the detection area by the displacement sensor 400. Furthermore, the plate-shaped member can bear a relatively large load, reducing the risk of damage to the elastic deformable member 210 due to excessive load.

[0038] In an embodiment, the elastic plate includes a first transverse plate section 211, a second transverse plate section 212 and a vertical plate section 213. The first transverse plate section 211 and the second transverse plate section 212 are both arranged in the horizontal direction, and the vertical plate section 213 is arranged in the up and down direction. The lower end of the vertical plate section 213 is connected to one end of the first transverse plate section 211, and the upper end of the vertical plate section 213 is connected to one end of the second transverse plate section 212. The lifting drive assembly 300 is connected to the other end of the second transverse plate section 212, the first transverse plate section 211 is connected to the lifting frame 200, the displacement sensor 400 is opposite to the second transverse plate section 212 in the up and down direction, and the detection area is located in the second transverse plate section 212.

[0039] The first transverse plate section 211 is connected to the lifting frame 200, so that the connection between the elastic plate and the lifting frame 200 is relatively firm; the vertical plate section 213 and the second transverse plate section 212 can both undergo elastic deformation, so that the elastic deformation range of the detection area can be larger, and the displacement sensor 400 is located above the second transverse plate section 212, which is conducive to the displacement sensor 400 detecting the position change of the detection area of ​​the elastic deformation member 210.

[0040] Specifically, the displacement sensor 400 may be, for example, an inductive, capacitive, or laser type, or other types of displacement sensors 400 may be used. Those skilled in the art may configure the displacement sensor 400 according to actual needs.

[0041] Specifically, the elastic plate can be connected to the lifting frame 200 by welding, riveting, screw locking, etc., or can be directly manufactured on the lifting frame 200 by an integral molding method.

[0042] In an embodiment, the lifting drive assembly 300 includes a reel 310, a rotation driver 320 and a flexible belt 330. The reel 310 is rotatably arranged on the lifting frame 200. One end of the flexible belt 330 is arranged on the reel 310. The machine base 100 is provided with a pulley 110. The flexible belt 330 is wound around the pulley 110. The other end of the flexible belt 330 is connected to the elastic deformable part 210. The rotation driver 320 is arranged on the lifting frame 200 and is used to drive the reel 310 to rotate.

[0043] When the lift drive assembly 300 is in operation, the rotary actuator 320 drives the reel 310 to rotate. As the reel 310 drives the flexible belt 330 to rewind onto the reel 310, the flexible belt 330 passes around the pulley 110, pulling the elastic deformable member 210, thereby lifting the entire lift frame 200. When the reel 310 rotates and releases the flexible belt 330, gravity allows the lift frame 200 to descend, thereby lowering the entire lift frame 200. The lift drive assembly 300, simple in structure and easy to use, is relatively compact and suitable for applications involving large loads.

[0044] Specifically, the flexible belt 330 is made of nylon, which has high strength and flexibility and is not easy to wear. The rotation driver 320 is a motor that drives the reel 310 to rotate through a worm gear structure, thereby preventing the reel 310 from accidentally rotating automatically under the force of the flexible belt 330.

[0045] It is conceivable that in other embodiments, the rotation driver 320 may also be a structure that outputs rotational power, such as an internal combustion engine, and the flexible belt 330 may also be other types, such as a fiber belt, a plastic belt, a steel wire rope, or a metal cable.

[0046] In this embodiment, the reel 310 and the elastic member 210 are spaced apart in the left-right direction. The base 100 is provided with two pulleys 110, one of which is vertically opposed to the reel 310, and the other is vertically opposed to the elastic member 210. The flexible belt 330 is sequentially wound around the two pulleys 110. The two pulleys 110 are vertically opposed to the reel 310 and the elastic member 210, respectively. This ensures that the pulling force exerted by the flexible belt 330 on the lifting frame 200 is in the vertical direction. This reduces the pulling force required by the rotary actuator 320 to pull the lifting frame 200 via the flexible belt 330, making the flexible belt 330 less susceptible to damage and thus reducing costs.

[0047] It is conceivable that in other embodiments, the reel 310 may also be rotatably connected to the base 100 , and in this case, the rotary driver 320 is also disposed on the base.

[0048] It is conceivable that in other embodiments, the lifting drive assembly 300 can also be other structures, such as an electric cylinder, an oil cylinder or a linear motor, connected between the elastic deformable part 210 and the base 100 to drive the lifting frame 200 to move up and down.

[0049] In this embodiment, the base 100 is provided with an upper crossbeam 120, and a safety assembly 500 is disposed between the upper crossbeam 120 and the lifting frame 200. The safety assembly 500 is used to limit the maximum distance between the upper crossbeam 120 and the lifting frame 200. The provision of the safety assembly 500 can limit the maximum distance between the upper crossbeam 120 and the lifting frame 200. Even if the flexible belt 330 is damaged and the lifting frame 200 falls, the safety assembly 500 can still limit the lifting frame 200, reducing the risk of excessive falling of the lifting frame 200, thereby further improving the safety of the lifting mechanism.

[0050] In this embodiment, the safety assembly 500 includes a limiting strap 510 and a stop block 520. The upper end of the limiting strap 510 is connected to the upper crossbeam 120, and the stop block 520 is located at the lower end of the limiting strap 510. The lifting frame 200 is provided with a clearance hole 220, through which the limiting strap 510 passes. The cross-sectional area of ​​the stop block 520 is larger than that of the clearance hole 220. Under normal operation, the limiting strap 510 can move through the clearance hole 220 of the lifting frame 200, allowing the lifting frame 200 to be raised and lowered normally. If the lifting frame 200 accidentally falls and reaches its maximum distance from the upper crossbeam 120, the stop block 520 contacts the lifting frame 200. Since the stop block 520 cannot pass through the clearance hole 220, the limiting strap 510 and the stop block 520 can limit the lifting frame 200 downward, thereby reducing the risk of excessive fall.

[0051] It is understandable that, in some embodiments, the limiting belt 510 may be flexible, and in this case, the stop block 520 may also be fixed to the lifting frame 200 to prevent excessive falling.

[0052] Specifically, the limiting belt 510 may be made of, for example, a nylon belt, a fiber belt, a plastic belt, a steel wire rope, or a metal cable.

[0053] It is conceivable that the safety component 500 may also be a safety pull rope, one end of which is connected to the upper beam 120 , and the other end of which is connected to the lifting frame 200 .

[0054] In this embodiment, the base 100 is equipped with at least two vertically oriented slide rails, and the lift 200 is provided with an equal number of slide slots as the slide rails. The slide rails are slidably connected to the corresponding slide slots; the slot openings of at least two of the slide slots are perpendicular to each other. This rail-slide slot structure enables the lift 200 to move upward and downward relative to the base 100. This structure is simple and easy to implement, and the slot openings of some of the slide slots are perpendicular to each other, reducing the risk of the lift 200 shaking.

[0055] Specifically, the base 100 is provided with three slide rails, and the corresponding lifting frame 200 is provided with three slide slots. The left and right sides of the lifting frame 200 are slidably connected to the base 100 via a slide rail and slider structure. A portion of the interior of the lifting frame 200 is also slidably connected to the base 100 via a slide rail and slider structure. It is contemplated that in other embodiments, the base 100 may be provided with two, four, or more slide rails, and the lifting frame 200 may also be provided with two, four, or more slide slots. It is contemplated that in other embodiments, the lifting frame 200 may be connected to the base 100 in a liftable manner via a guide post and guide sleeve structure.

[0056] In this embodiment, limit sensors are provided on both the upper and lower portions of the lift 200, and are electrically connected to the control module. The limit sensors detect whether the lift 200 has reached its upper or lower limit, and control the lift drive assembly 300 to stop the lift 200, thereby preventing the risk of excessive movement.

[0057] Specifically, the limit sensor may be a distance sensor or a micro switch or other structures, which can detect the distance between the lifting frame 200 and the designated position.

[0058] The utility model also discloses an intelligent wall cabinet which adopts the above-mentioned lifting mechanism. Due to the adoption of the above-mentioned lifting mechanism, the intelligent wall cabinet has better safety and longer service life.

[0059] Specifically, the smart wall cabinet may also be installed with a voice interaction module, which is electrically connected to the control module to allow voice control of the operation of the smart wall cabinet.

[0060] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lifting mechanism, characterized in that: include: Machine base (100); A lifting frame (200) is escalably disposed on the machine base (100), and the lifting frame (200) is provided with an elastic deformation member (210); A lifting drive assembly (300) is provided between the machine base (100) and the lifting frame (200), wherein the lifting drive assembly (300) is connected to the elastic deformation member (210) and can pull the lifting frame (200) to move via the elastic deformation member (210); A control module electrically connected to the lifting drive assembly (300); A displacement sensor (400) is provided on the lifting frame (200) and is electrically connected to the control module. The displacement sensor (400) is used to detect the position of the detection area of ​​the elastic deformation member (210).

2. The lifting mechanism according to claim 1, characterized in that: The elastic deformation member (210) is an elastic plate, one end of which is fixed to the lifting frame (200), and the other end of which is connected to the lifting drive assembly (300).

3. The lifting mechanism according to claim 2, characterized in that: The elastic plate comprises a first transverse plate section (211), a second transverse plate section (212) and a vertical plate section (213); the first transverse plate section (211) and the second transverse plate section (212) are both arranged in the horizontal direction; the vertical plate section (213) is arranged in the up-down direction; the lower end of the vertical plate section (213) is connected to one end of the first transverse plate section (211); the upper end of the vertical plate section (213) is connected to one end of the second transverse plate section (212); the lifting drive assembly (300) is connected to the other end of the second transverse plate section (212); the first transverse plate section (211) is connected to the lifting frame (200); the displacement sensor (400) is opposite to the second transverse plate section (212) in the up-down direction; and the detection area is located in the second transverse plate section (212).

4. The lifting mechanism according to claim 1, wherein: The lifting drive assembly (300) includes a reel (310), a rotation driver (320) and a flexible belt (330). The reel (310) is rotatably arranged on the lifting frame (200). One end of the flexible belt (330) is arranged on the reel (310). The machine base (100) is provided with a pulley (110). The flexible belt (330) is wound around the pulley (110). The other end of the flexible belt (330) is connected to the elastic deformable member (210). The rotation driver (320) is arranged on the lifting frame (200) and is used to drive the reel (310) to rotate.

5. The lifting mechanism according to claim 4, characterized in that: The reel (310) and the elastic deformable member (210) are arranged at intervals along the left-right direction, and the machine base (100) is provided with two pulleys (110), one of the pulleys (110) is opposite to the reel (310) along the vertical direction, and the other pulley (110) is opposite to the elastic deformable member (210) along the vertical direction, and the flexible belt (330) is wound around the two pulleys (110) in sequence.

6. The lifting mechanism according to claim 1, characterized in that: The machine base (100) is provided with an upper crossbeam (120), and a safety component (500) is provided between the upper crossbeam (120) and the lifting frame (200). The safety component (500) is used to limit the maximum distance between the upper crossbeam (120) and the lifting frame (200).

7. The lifting mechanism according to claim 6, characterized in that: The safety component (500) comprises a limiting belt (510) and a stop block (520), wherein the upper end of the limiting belt (510) is connected to the upper crossbeam (120), and the stop block (520) is arranged at the lower end of the limiting belt (510); the lifting frame (200) is provided with a clearance hole (220), and the limiting belt (510) is passed through the clearance hole (220); and the cross-sectional area of ​​the stop block (520) is larger than the cross-sectional area of ​​the clearance hole (220).

8. The lifting mechanism according to claim 1, characterized in that: The machine base (100) is provided with at least two slide rails in the up-down direction, and the lifting frame (200) is provided with the same number of slide slots as the slide rails, and the slide rails are slidably connected to the corresponding slide slots; the notches of at least two of the slide slots are perpendicular to each other.

9. The lifting mechanism according to claim 1, characterized in that: Limit sensors are provided on the upper and lower parts of the lifting frame (200), and the limit sensors are electrically connected to the control module.

10. A smart wall cabinet, characterized in that: The lifting mechanism comprises the lifting mechanism according to any one of claims 1 to 9.

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