Multifunctional electric appliance

Abstract

The utility model provides a multifunctional electric appliance which comprises a machine body, a lifting mechanism and a functional unit, and the lifting mechanism comprises a driving unit and a lifting unit. One of the machine body and the functional unit is provided with a sliding part and a driving unit; the driving unit is connected with an input piece of the lifting unit; the other one of the machine body and the functional unit is arranged on an output piece of the lifting unit and is provided with a guide part matched with a shaft hole of the sliding part; a plurality of moving pair elements located on the outer side of the lifting unit and arranged around the lifting unit are formed between the sliding part and the guiding part.

Description

Technical Field

[0001] This utility model relates to the field of household electrical appliances, and in particular to a multifunctional electrical appliance. Background Technology

[0002] Upgrades to home appliances such as bathroom heaters and fresh air systems are moving towards modular integration and functional diversification. Some bathroom heaters have adopted liftable light units and display modules to meet the needs of users of different heights and to adapt to different installation positions. While liftable functional units offer convenience, they also bring reliability issues. For example, the lifting smoothness of the functional units is poor, and they are prone to shaking and trembling. Many problems with liftable functional units affect the user experience. Utility Model Content

[0003] In view of this, the present invention provides a multifunctional electrical appliance that enables the functional units to be raised and lowered while improving the smoothness of the raising and lowering of the functional units and the stability of their posture.

[0004] The multifunctional electrical appliance of this utility model includes a body, a lifting mechanism, and a functional unit. The lifting mechanism includes a drive unit and a lifting unit. One of the body and the functional unit is provided with a sliding part and a drive unit, and the drive unit is connected to the input part of the lifting unit. The other part of the body and the functional unit is provided at the output part of the lifting unit and is provided with a guide part that cooperates with the shaft hole of the sliding part. Multiple sliding pairs are formed between the sliding part and the guide part, located outside the lifting unit and arranged around the lifting unit.

[0005] This utility model of a multifunctional electrical appliance achieves height adjustment of the functional units while ensuring that the functional units are not prone to jamming, thus improving the smoothness of lifting and lowering and the stability of their posture. Thanks to the sliding and guiding parts being arranged around the lifting unit, the interaction force between the sliding and guiding parts is distributed around the lifting unit, rather than being limited to a single direction. Therefore, the resultant force on the functional unit during its lifting and lowering movement relative to the main body is more balanced, effectively preventing posture deviation caused by the interaction force between the sliding and guiding parts being distributed only in one direction. This avoids deviation from the predetermined lifting and lowering trajectory during the functional unit's lifting and lowering movement. The sliding cooperation between the sliding and guiding parts serves more as a guide and maintains stability for the functional unit than as an obstacle, while also increasing the load capacity of the main body, allowing for further increases in the weight of the functional units and the integration of more functional modules.

[0006] In some embodiments, the lifting unit includes a screw serving as an input and a screw sleeve serving as an output, the screw sleeve being fitted onto the screw and threaded to the screw.

[0007] In some embodiments, the drive unit includes a drive motor fixed to the body, a screw fixedly connected to the output shaft of the drive motor, and a screw sleeve fixedly connected to the functional unit.

[0008] In some embodiments, the body has multiple guide holes, the inner wall surface of the guide holes is used as a sliding part, the guide part includes multiple guide pins connected to the functional unit, the multiple guide holes are arranged along the circumference of the threaded sleeve on the outer circumference side of the threaded sleeve, and the multiple guide pins are respectively inserted into the multiple guide holes one by one.

[0009] In some implementations, the guide pin, guide hole, threaded sleeve, and screw are all axially parallel.

[0010] In some embodiments, the body includes a base plate with guide holes and a bracket on the side of the base plate opposite to the functional unit. A drive motor is located at the end of the bracket. A screw is rotatably connected to the base plate. The lifting mechanism also includes a lifting frame fixedly connected to a screw sleeve. A guide pin is fixed to the lifting frame and passes through the base plate to connect the functional unit on the other side of the base plate.

[0011] In some embodiments, the lifting unit includes a rocker arm serving as an input and a connecting rod serving as an output, the rocker arm and the connecting rod being rotatably connected to form a first lifting linkage mechanism.

[0012] In some embodiments, the drive unit includes a drive motor fixedly connected to the body, the drive motor drives a rocker arm, and the two ends of the connecting rod are respectively hinged to the rocker arm and the functional unit.

[0013] In some embodiments, the sliding part includes multiple pins fixed to the functional unit, and the guiding part includes multiple guide sleeves fixed to the machine body. The multiple guide sleeves are arranged sequentially on the outside of the lifting unit, and each sleeve is fitted with a corresponding multiple pin; or...

[0014] The sliding part includes multiple guide sleeves fixed to the functional unit, and the guiding part includes multiple pins fixed to the body. The multiple guide sleeves are arranged one by one on the outside of the lifting unit, and each of them is fitted with multiple pins in a corresponding manner.

[0015] In some embodiments, the lifting unit further includes a swing arm serving as an input and a swing rod serving as an output, the swing arm and the swing rod being rotatably connected to form a second lifting linkage mechanism, and the first lifting linkage mechanism and the second lifting linkage mechanism being symmetrically arranged.

[0016] In some embodiments, the drive unit further includes a spare motor fixedly connected to the body, a swing arm fixedly connected to the output shaft of the spare motor, and the two ends of the swing arm and the functional unit respectively hinged.

[0017] or,

[0018] The swing arm and the rocker arm are meshed together, and the output shaft of the drive motor is connected to at least one of the swing arm and the rocker arm.

[0019] In some embodiments, the drive unit is located on the side of the body opposite to the functional unit, the body has a clearance opening for the lifting unit to pass through, the rocker arm is connected to the drive unit on the side of the body opposite to the functional unit, and the connecting rod is connected to the functional unit on the other side of the body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the multifunctional electrical appliance according to Embodiment 1 of this utility model;

[0021] Figure 2 This is an assembly diagram of the multifunctional electrical appliance according to Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the multifunctional electrical appliance according to Embodiment 2 of this utility model;

[0023] Figure 4 This is a schematic diagram of the body of the multifunctional electrical appliance according to Embodiment 2 of this utility model;

[0024] Figure 5 This is a partial structural schematic diagram of the multifunctional electrical appliance according to Embodiment 2 of this utility model;

[0025] Figure 6 This is a schematic diagram of the lifting mechanism of the multifunctional electrical appliance according to Embodiment 2 of this utility model;

[0026] Figure 7 This is a schematic diagram of the lifting mechanism of the multifunctional electrical appliance according to Embodiment 3 of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 10. Body; 11. Base plate; 111. Guide hole; 112. Protruding end; 12. Bracket; 13. Guide sleeve; 14. Clearance opening; 20. Drive unit; 21. Drive motor; 22. Output shaft; 23. Backup motor; 30. Lifting unit; 31. Input component; 311. Screw; 3111. Sleeve hole; 312. Rocker arm; 313. Swing arm; 32. Output component; 321. Screw sleeve; 322. Connecting rod; 323. Swing arm; 41. Lifting frame; 42. Guide pin; 50. Functional unit; 51. Fixing pin; 52. Pin shaft; 60. Sliding part; 70. Guide part. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] This utility model provides a multifunctional electrical appliance equipped with a liftable functional unit 50. The specific type and function of the multifunctional electrical appliance are not limited; it can be a bathroom heater, a fresh air system, an exhaust fan, or a combined lighting appliance. When the multifunctional electrical appliance is a bathroom heater, the liftable functional unit 50 can integrate functions such as lighting, heating, beauty care, sterilization and disinfection, working status display, and human-computer interaction. Specifically, it can include lighting lamps, heating lamps, beauty lamps, disinfection lamps, display and interaction modules, etc.

[0031] See Figures 1-5 , Figures 1-5 The multi-functional appliance shown is specifically a bathroom heater / ventilation unit. This unit can be installed on a horizontally installed bathroom ceiling or a horizontally installed interior ceiling, or it can be installed on a vertical wall. This utility model does not limit the specific installation location of the multi-functional appliance; bathroom ceilings, interior ceilings, and vertical walls are collectively referred to as the installation surfaces of the multi-functional appliance.

[0032] The following uses a bathroom heater as an example to introduce the structure and working principle of this multifunctional appliance. The multifunctional appliance includes a body 10, a lifting mechanism, and a functional unit 50. The lifting mechanism includes a drive unit 20 and a lifting unit 30. The functional unit 50 can be equipped with any one or more of the following: lighting, heating, beauty, disinfection, display, and interactive modules. It can also be equipped with other functional modules. The lifting unit 30 includes at least an input component 31 and an output component 32. The input component 31 is the driving component in the lifting unit 30, and the output component 32 is the driven component. One of the body 10 and the functional unit 50 is provided with a sliding part 60 and the aforementioned drive unit 20. The drive unit 20 drives the input component 31, so that the input component 31 obtains power to drive the output component 32. The other of the body 10 and the functional unit 50 is located in the output component 32 and is provided with a guide part 70 that forms a shaft hole fit with the sliding part 60.

[0033] The drive unit 20 provides the power to move the functional unit 50 closer to and away from the body 10. A sliding part 60 and a guide part 70 form a sliding joint through a slidable shaft hole, thus forming a sliding guide mechanism. This mechanism guides the functional unit 50 to move back and forth relative to the body 10 along a preset lifting trajectory. The interaction force between the sliding part 60 and the guide part 70 maintains the posture of the functional unit 50 during movement. In some embodiments, the body 10 is fixed relative to the mounting surface, which is a horizontal plane formed by a bathroom ceiling or an indoor ceiling. The functional unit 50 moves closer to the body 10 and rises to approach the mounting surface, and moves away from the body 10 and descends to move away from the mounting surface. The preset lifting trajectory is a straight line, and the velocity direction of the functional unit 50 along the preset lifting trajectory is perpendicular to the mounting surface.

[0034] Figures 1-5 In the illustrated embodiment, the mounting surface extends horizontally and faces the ground. The unit 10 is the air collector or cover of a bathroom heater. The functional unit 50 is located on the side of the unit 10 facing away from the mounting surface. When the drive unit 20 drives the functional unit 50 away from the unit 10, the functional unit 50 descends; when the drive unit 20 drives the functional unit 50 closer to the unit 10, the functional unit 50 rises. In other embodiments, the mounting surface can also extend horizontally and face away from the ground. The functional unit 50 is located on the side of the unit 10 facing away from the ground. When the drive unit 20 drives the functional unit 50 away from the unit 10, the functional unit 50 rises; when the drive unit 20 drives the functional unit 50 closer to the unit 10, the functional unit 50 descends. When the mounting surface is a vertical wall, the drive unit 20 can drive the functional unit 50 to move horizontally away from the unit 10 and the mounting surface, or drive the functional unit 50 to move horizontally closer to the unit 10 and the mounting surface. The vertical height of the functional unit 50 does not change with the translation of the functional unit 50.

[0035] This utility model does not limit the application type, specific structure, or arrangement of the functional modules and functional devices mounted in the functional unit 50. In some applications, the functional unit 50 includes multiple functional modules with different functions and special arrangements. This causes the movement trajectory of the geometric center of the functional unit 50 and the movement trajectory of the center of gravity of the functional unit 50 to be not completely consistent when the functional unit 50 moves relative to the body 10 along a preset lifting trajectory. In some cases, the two may even deviate significantly, and the center of gravity of the functional unit 50 may deviate significantly from its geometric center of gravity. This can easily cause the functional unit 50 to shake and vibrate, and prevent the functional unit 50 from strictly following the preset lifting trajectory to move back and forth. The stability of the functional unit 50 is insufficient, and the sliding resistance between the sliding part 60 and the guide part 70 increases. In severe cases, this can cause the functional unit 50 to become stuck and obstructed or even lose its lifting and lowering movement capability.

[0036] Therefore, the multifunctional electrical appliance of this utility model is defined as follows: the sliding part 60 and the guide part 70 are located outside the lifting unit 30, the sliding part 60 is arranged around the lifting unit 30 and the guide part 70 is also arranged around the lifting unit 30. With this arrangement, the sliding pair element between the sliding part 60 and the guide part 70 is arranged around the lifting unit 30. The sliding pair element between the sliding part 60 and the guide part 70 serves as the position of action of the interaction force between the sliding part 60 and the guide part 70 (hereinafter referred to as the guiding force). This means that the position of action of the guiding force is distributed around the lifting unit 30, and is no longer limited to a specific direction along the lifting unit 30. Therefore, the resultant force on the functional unit 50 when it moves up and down relative to the body 10 is more balanced. The resultant force on the functional unit 50 is the vector sum of the driving force indirectly acting on the functional unit 50 by the driving unit 20 through the lifting unit 30 and the aforementioned guiding force.

[0037] Compared with the prior art, the multifunctional electrical appliance of this utility model ensures that the functional unit 50 is not easily jammed or obstructed while realizing the lifting and lowering of the functional unit 50, and improves the smoothness of the lifting and lowering and the stability of the posture of the functional unit 50. It can prevent the functional unit 50 from deviating from the preset lifting and lowering trajectory during the lifting and lowering process. The guiding force plays a more precise guiding role and maintains the stability of the functional unit 50 rather than hindering the movement of the functional unit 50. It also improves the load capacity of the body 10, that is, it allows the body 10 to carry functional units 50 with greater mass, more functional modules and more diverse functions through the lifting unit 30. At the same time, it reduces the difficulty of arranging multiple functional modules in the functional unit 50, thereby allowing the functional unit 50 to have a greater center of gravity offset. The center of gravity offset is the degree of offset of the center of gravity of the functional unit 50 relative to the geometric center of the functional unit 50.

[0038] Example 1

[0039] See Figures 1-2The lifting unit 30 includes a screw 311 serving as an input component 31 and a screw sleeve 321 serving as an output component 32. The drive unit 20 includes a drive motor 21 fixedly mounted on the body 10. The screw 311 is fixedly connected to the output shaft 22 of the drive motor 21. The screw sleeve 321 is sleeved on the screw 311 and threadedly fitted to the screw 311. The functional unit 50 is fixedly connected to the screw sleeve 321. The body 10 has multiple guide holes 111. The inner wall surface of the guide holes 111 forms a sliding part 60. The multiple guide holes 111 are arranged circumferentially on the outer periphery of the screw sleeve 321. The guide part 70 includes multiple guide pins 42 connected to the functional unit 50. The multiple guide pins 42 and the multiple guide holes 111 correspond one-to-one. Each guide pin 42 can slidably pass through the corresponding guide hole 111. The sliding pair element between the sliding part 60 and the guide part 70 includes multiple guide pins 42. The outer wall surface and the inner wall surface of multiple guide holes 111, multiple guide pins 42 surround the outer side of the lifting unit 30 to form a polygonal, circular or elliptical guide pin 42 array, multiple guide holes 111 surround the outer side of the lifting unit 30 to form a polygonal, circular or elliptical guide hole 111 array, the shape of the guide pin 42 array is the same as the shape of the guide hole 111 array, the inner wall of each guide hole 111 and the outer wall of the guide pin 42 passing through the guide hole 111 form a clearance fit or transition fit.

[0040] In Embodiment 1, after the drive motor 21 starts running, it drives the screw 311 to rotate relative to the machine body 10 via the output shaft 22. The screw sleeve 321 moves in a helical motion relative to the screw 311. The helical motion includes a rotation vector and a movement vector. The sliding fit between the guide pin 42 and the inner wall of the guide hole 111 restricts the screw sleeve 321 from rotating relative to the machine body 10 around the axis of the screw 311, and releases the movement vector, thereby allowing the screw sleeve 321 to move relative to the machine body 10 along the axial direction of the screw 311. When the output shaft 22 of the drive motor 21 rotates in the forward direction and drives the screw 311 to rotate in the forward direction, the screw sleeve 321 moves relatively closer to the machine body 10 along the axial direction of the screw 311, thereby driving the functional unit 50 to move upward closer to the machine body 10. When the output shaft 22 of the drive motor 21 rotates in the reverse direction and drives the screw 311 to rotate in the reverse direction, the screw sleeve 321 moves relatively away from the machine body 10 along the axial direction of the screw 311, thereby driving the functional unit 50 to move downward away from the machine body 10. Optionally, the axes of the multiple guide holes 111 are parallel to each other, the axes of the multiple guide pins 42 are parallel to each other, and the axes of the guide pins 42, guide holes 111, threaded sleeves 321, screws 311 and output shaft 22 are all parallel to each other.

[0041] Specifically, see again Figures 1-2The body 10 includes a base plate 11 with a guide hole 111, a bracket 12 protruding from the base plate 11 on the side opposite to the functional unit 50, and a protruding end 112 protruding from the base plate 11 on the side opposite to the functional unit 50. A drive motor 21 is fixedly mounted on the end of the bracket 12 that is relatively far away from the base plate 11. One end of a screw 311 is fixed and coaxially connected to the output shaft 22 of the drive motor 21. The other end of the screw 311 has a sleeve hole 3111 to fit the protruding end 112. The inner wall of the sleeve hole 3111 and the outer peripheral wall of the protruding end 112 form a rotational connection. The screw 311 is rotatably connected to the base plate 11. The lifting mechanism also includes a lifting frame 41 fixedly connected to the screw sleeve 321. The lifting frame 41 is located on the side of the base plate 11 opposite to the functional unit 50 and is stacked with the base plate 11 along the axial direction of the screw 311. One end of a plurality of guide pins 42 is fixedly connected to the lifting frame 41. The plurality of guide pins 42 are respectively passed through a plurality of guide holes 111 to penetrate the base plate 11. Finally, the plurality of guide pins 42 extend from the side of the base plate 11 opposite to the lifting frame 41 and are fixedly connected to the functional unit 50. Optionally, the functional unit 50, the base plate 11, and the lifting frame 41 are arranged sequentially along the axial direction of the screw 311 and are coaxially arranged. The plurality of guide holes 111 are evenly arranged along the circumference of the screw sleeve 321.

[0042] This configuration minimizes the center offset of the functional unit 50 and ensures that the sliding pair elements between the sliding part 60 and the guide part 70 are evenly distributed around the lifting unit 30, thereby improving the smoothness and stability of the functional unit 50 during lifting and moving, and further increasing the load capacity of the body 10, allowing the functional unit 50 to carry more and heavier functional modules.

[0043] Further, see Figure 1 and Figure 2 The functional unit 50 is provided with multiple fixing pins 51 on the side relatively close to the base plate 11. Multiple guide pins 42 pass through the base plate 11 and are fixedly sleeved on the multiple fixing pins 51 respectively. The insertion and engagement between the guide pins 42 and the fixing pins 51 makes the functional unit 50 and the lifting frame 41 detachably connected.

[0044] Example 2

[0045] See Figures 3-5The lifting unit 30 includes a rocker arm 312 serving as an input component 31 and a connecting rod 322 serving as an output component 32. The rocker arm 312 and the connecting rod 322 are rotatably connected to form a first lifting linkage mechanism. The drive unit 20 includes a drive motor 21 fixed to the body 10. The output shaft 22 of the drive motor 21 is fixedly connected to the rocker arm 312. One end of the connecting rod 322 is hinged to the rocker arm 312, and the other end is hinged to the functional unit 50. The sliding part 60 includes multiple pins 52 fixed to the functional unit 50, and the guide part 70 includes multiple guide sleeves 13 fixed to the body 10. The multiple guide sleeves 13 are arranged one by one on the outside of the lifting unit 30 to form a queue of guide sleeves 13 that at least surrounds the first lifting linkage mechanism. The queue of guide sleeves 13 is polygonal, circular, or elliptical. The multiple pins 52 surround the outside of the lifting unit 30 and are arranged one by one to form a queue of pins 52 that at least surrounds the first lifting linkage mechanism. The shape of the queue of guide sleeves 13 is the same as the shape of the queue of pins 52. The multiple guide sleeves 13 are respectively fitted with multiple pins 52 one by one. Each pin 52 can be slidably inserted into the corresponding guide sleeve 13. The sliding pair element between the sliding part 60 and the guide part 70 includes the inner wall surface of the multiple guide sleeves 13 and the outer wall surface of the multiple pins 52. The inner wall of each guide sleeve 13 and the outer wall of the pin 52 inserted into the guide sleeve 13 form a clearance fit or a transition fit.

[0046] See Figures 4-5 The body 10 has a plate-like structure and an opening 14. The drive unit 20 is fixed to the side of the body 10 opposite to the functional unit 50. At least the first lifting linkage mechanism in the lifting unit 30 passes through the opening 14. The rocker arm 312 is connected to the output shaft 22 of the drive motor 21 on the side of the body 10 opposite to the functional unit 50, and the linkage 322 is hinged to the functional unit 50 on the other side of the body 10. The opening 14 not only allows the first lifting linkage mechanism to pass through, but also provides the necessary space for the first lifting linkage mechanism to move, ensuring that the first lifting linkage mechanism will not interfere with the edge of the opening 14 when folding. The setting of the clearance 14 makes the overall height dimension of the body 10, the lifting unit 30 and the drive unit 20 smaller. The height dimension is the dimension of the body 10, the lifting unit 30 and the drive unit 20 in the thickness direction of the body 10. This setting is conducive to the miniaturization and compact structure of the multi-functional appliance, so as to reduce the space occupied by the multi-functional appliance.

[0047] In Embodiment 2, after the drive motor 21 is driven to run, it drives the rocker arm 312 to rotate relative to the machine body 10 through the output shaft 22. At the same time, the connecting rod 322 rotates relative to the rocker arm 312. The sliding fit between the pin 52 and the guide sleeve 13 restricts the swing of the functional unit 50 relative to the machine body 10 and allows the functional unit 50 to move relative to the machine body 10. The pin 52 and the guide sleeve 13 are coaxially adapted, and the axial direction of the pin 52 and the guide sleeve 13 is the direction of the preset lifting trajectory of the functional unit 50 in Embodiment 2. When the output shaft 22 of the drive motor 21 rotates in the forward direction and drives the rocker arm 312 to rotate in the forward direction, the connecting rod 322 rotates relative to the rocker arm 312, thereby driving the functional unit 50 to move closer to the machine body 10 and move upward. When the output shaft 22 of the drive motor 21 rotates in the reverse direction and drives the rocker arm 312 to rotate in the reverse direction, the connecting rod 322 rotates relative to the rocker arm 312 in the opposite direction, thereby driving the functional unit 50 to move away from the machine body 10 and move downward. Optionally, the axes of the multiple pins 52 and the axes of the multiple guide sleeves 13 are parallel to each other.

[0048] Example 3

[0049] Based on Embodiment 2, Embodiment 3 further includes a swing arm 313 serving as an input component 31 and a swing rod 323 serving as an output component 32. (See attached document.) Figures 5-6The swing arm 313 and the swing rod 323 are rotatably connected to form a second lifting linkage mechanism. The drive unit 20 also includes a spare motor 23 fixed to the body 10. The output shaft 22 of the spare motor 23 is fixedly connected to the swing arm 313. One end of the swing rod 323 is hinged to the swing arm 313, and the other end is hinged to the functional unit 50. The drive motor 21 and the backup motor 23 are identical. The rocker arm 312 and the swing arm 313 have the same shape and size. The connecting rod 322 and the swing rod 323 have the same shape and size. The first lifting linkage mechanism and the second lifting linkage mechanism are two V-shaped foldable mechanisms, which are symmetrically arranged about a vertical plane. This vertical plane is perpendicular to the body 10 and the mounting surface. The first lifting linkage mechanism has a first folding angle formed between the rocker arm 312 and the connecting rod 322. The second lifting linkage mechanism has a second folding angle formed between the swing arm 313 and the swing rod 323. The size of the first folding angle and the second folding angle increases or decreases synchronously as the drive motor 21 and the backup motor 23 operate simultaneously. Multiple guide sleeves 13 are arranged one by one to form a queue of guide sleeves 13 that surround the first lifting linkage mechanism and the second lifting linkage mechanism. Multiple pins 52 surround the outside of the lifting unit 30 and are arranged one by one to form a queue of pins 52 that surround the first lifting linkage mechanism and the second lifting linkage mechanism. The clearance opening 14 allows the first lifting linkage mechanism and the second lifting linkage mechanism to pass through. The swing arm 313 is connected to the output shaft 22 of the spare motor 23 on the side of the body 10 opposite to the functional unit 50. The swing rod 323 is hinged to the functional unit 50 on the other side of the body 10. The opening size of the clearance opening 14 provides the space required for the first lifting linkage mechanism and the second lifting linkage mechanism to move. The second lifting linkage mechanism will not interfere with the body 10 when folded.

[0050] It should be noted that in Embodiment 3, the drive motor 21 and the backup motor 23 can operate simultaneously, or only the drive motor 21 can operate while the backup motor 23 stops operating until the drive motor 21 fails, at which point the backup motor 23 takes over. When the drive motor 21 and the backup motor 23 operate simultaneously, the rocker arm 312 and the swing arm 313 both serve as active components in the lifting unit 30, while the connecting rod 322 and the swing arm 323 serve as driven components in the lifting unit 30. When only the drive motor 21 operates while the backup motor 23 stops operating, only the rocker arm 312 serves as the active component in the lifting unit 30, while the swing arm 313, the connecting rod 322, and the swing arm 323 all serve as driven components in the lifting unit 30.

[0051] Example 4

[0052] Based on Embodiment 3, the spare motor 23 can be removed, and only the drive motor 21 can be retained, such as... Figure 7As shown, in Embodiment 4, the spare motor 23 is eliminated, and the swing arm 313 and the rocker arm 312 are connected by gear meshing. The drive motor 21 is the only driving component that provides the power required for the lifting displacement of the functional unit 50. When the drive motor 21 starts running, the rocker arm 312 is first driven by the output shaft 22 of the drive motor 21, and at the same time, the swing arm 313 is driven by the rocker arm 312. With this configuration, the first lifting linkage mechanism and the second lifting linkage mechanism only need one drive motor 21 to achieve simultaneous folding and deformation. The movement of the lifting unit 30 in Embodiment 4 is no different from that in Embodiment 3. Eliminating the spare motor 23 can save the cost of the multi-functional appliance. Compared with Embodiment 3, the multi-functional appliance in Embodiment 4 is more suitable for situations where the functional unit 50 carries fewer and lighter functional modules.

[0053] Example 5

[0054] Example 5 is basically the same as Example 2, except that in Example 5, the sliding part 60 includes a plurality of guide sleeves 13 fixed to the functional unit 50, the guide part 70 includes a plurality of pins 52 fixed to the body 10, the plurality of pins 52 are arranged one by one on the outside of the lifting unit 30 to form a pin 52 queue surrounding the first lifting linkage mechanism and the second lifting linkage mechanism, the plurality of guide sleeves 13 are arranged one by one on the outside of the lifting unit 30 to form a guide sleeve 13 queue surrounding the first lifting linkage mechanism and the second lifting linkage mechanism, and the plurality of guide sleeves 13 are respectively fitted with the plurality of pins 52 one by one.

[0055] It should be noted that the preset lifting trajectory does not necessarily have to be perpendicular to the machine body or the mounting surface. In other embodiments not shown in the figure, the preset lifting trajectory is inclined relative to the machine body and the mounting surface and has an acute or obtuse angle, as long as the functional unit can change its distance from the machine body when it moves along the preset lifting trajectory.

[0056] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A multi-functional electric appliance characterized by comprising: It includes a body (10), a lifting mechanism and a functional unit (50), wherein the lifting mechanism includes a drive unit (20) and a lifting unit (30); The body (10) and the functional unit (50) are provided with a sliding part (60) and a drive unit (20), and the drive unit (20) is connected to the input part (31) of the lifting unit (30); The other of the body (10) and the functional unit (50) is located in the output part (32) of the lifting unit (30), and is provided with a guide part (70) that cooperates with the shaft hole of the sliding part (60).

2. The multi-functional appliance of claim 1, wherein, The lifting unit (30) includes a screw (311) serving as the input component (31) and a screw sleeve (321) serving as the output component (32). The screw sleeve (321) is fitted onto the screw (311) and is threadedly adapted to the screw (311).

3. The multi-functional appliance of claim 2, wherein, The drive unit (20) includes a drive motor (21) fixed to the body (10), a screw (311) fixedly connected to the output shaft (22) of the drive motor (21), and a screw sleeve (321) fixedly connected to the functional unit (50).

4. The multi-functional appliance of claim 3, wherein, The body (10) has a plurality of guide holes (111), the inner wall surface of the guide holes (111) is used as the sliding part (60), the guide part (70) includes a plurality of guide pins (42) connected to the functional unit (50), the plurality of guide holes (111) are arranged along the circumference of the threaded sleeve (321) on the outer circumference of the threaded sleeve (321), and the plurality of guide pins (42) are respectively inserted into the plurality of guide holes (111).

5. The multi-functional appliance of claim 4, wherein, The guide pin (42), the guide hole (111), the screw sleeve (321), and the screw (311) are all axially parallel.

6. The multi-functional appliance of claim 4, wherein, The body (10) includes a base plate (11) with the guide hole (111) and a bracket (12) on the side of the base plate (11) opposite to the functional unit (50). The drive motor (21) is located at the end of the bracket (12). The screw (311) is rotatably connected to the base plate (11). The lifting mechanism also includes a lifting frame (41) fixedly connected to the screw sleeve (321). The guide pin (42) is fixed to the lifting frame (41) and passes through the base plate (11) to connect the functional unit (50) on the other side of the base plate (11).

7. The multi-functional appliance of claim 1, wherein, The lifting unit (30) includes a rocker arm (312) serving as the input (31) and a connecting rod (322) serving as the output (32), wherein the rocker arm (312) and the connecting rod (322) are rotatably connected to form a first lifting linkage mechanism.

8. The multi-functional appliance of claim 7, wherein, The drive unit (20) includes a drive motor (21) fixedly connected to the body (10), the drive motor (21) drives the rocker arm (312), and the two ends of the connecting rod (322) are respectively hinged to the rocker arm (312) and the functional unit (50).

9. The multi-functional appliance of claim 8, wherein, The sliding part (60) includes a plurality of pins (52) fixed to the functional unit (50), and the guide part (70) includes a plurality of guide sleeves (13) fixed to the body (10). The plurality of guide sleeves (13) are arranged one by one on the outer periphery of the lifting unit (30), and the plurality of pins (52) are respectively fitted on them one by one; or, The sliding part (60) includes a plurality of guide sleeves (13) fixed to the functional unit (50), and the guide part (70) includes a plurality of pins (52) fixed to the body (10). The plurality of guide sleeves (13) are arranged one by one on the outer periphery of the lifting unit (30), and the plurality of pins (52) are respectively fitted one by one.

10. The multi-functional appliance of claim 8, wherein, The lifting unit (30) further includes a swing arm (313) serving as the input component (31) and a swing rod (323) serving as the output component (32). The swing arm (313) and the swing rod (323) are rotatably connected to form a second lifting linkage mechanism. The first lifting linkage mechanism and the second lifting linkage mechanism are symmetrically arranged.

11. The multi-functional appliance of claim 10, wherein, The drive unit (20) also includes a spare motor (23) fixedly connected to the body (10), the swing arm (313) is fixedly connected to the output shaft (22) of the spare motor (23), and the two ends of the swing rod (323) are respectively hinged to the swing arm (313) and the functional unit (50); or, The swing arm (313) is meshed with the rocker arm (312), and the output shaft (22) of the drive motor (21) is connected to at least one of the swing arm (313) and the rocker arm (312).

12. The multi-functional appliance of claim 7, wherein, The drive unit (20) is located on the side of the body (10) opposite to the functional unit (50). The body (10) has a clearance opening (14) for the lifting unit (30) to pass through. The rocker arm (312) is connected to the drive unit (20) on the side of the body (10) opposite to the functional unit (50). The connecting rod (322) is connected to the functional unit (50) on the other side of the body (10).

13. The multi-functional appliance according to any one of claims 1 to 12, wherein A plurality of movable sub-elements are formed between the sliding part (60) and the guide part (70), located outside the lifting unit (30) and arranged around the lifting unit (30).

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