Lifting base for household appliance

Abstract

The lifting base comprises an upper cover, a lifting bottom cover and a lifting mechanism, a containing cavity is formed in the upper cover, the lifting bottom cover is contained in the containing cavity, a plurality of rolling wheels are installed at the bottom of the lifting bottom cover, the lifting mechanism comprises a rotating disc and a motor, a sliding way with the height fluctuating is formed in the rotating disc, and the motor is connected with the rotating disc. The slide way is provided with a high-position slide way and a low-position slide way in the vertical direction, the high-position slide way and the low-position slide way are connected through an inclined slide way, a plurality of supporting columns are arranged in the containing cavity of the upper cover and slide along the slide way, and when the supporting columns slide to the high-position slide way from the low-position slide way, the lifting bottom cover is pushed out of the containing cavity, and the idler wheels make contact with the ground. When in use, the lifting bottom cover is pushed out from the accommodating cavity, so that the rollers are in contact with the ground, and the household appliance is convenient to move. When not used, the lifting bottom cover is contained in the containing cavity, the idler wheels do not make contact with the ground, the problem that the idler wheels are prone to displacement is solved, and safety is improved.

Description

Technical Field

[0001] The invention relates to a base component used at the bottom of a household appliance, mainly used for supporting the household appliance. Background Art

[0002] In the prior art, household appliances are generally supported directly on the ground by the bottom of the appliance. It is time-consuming and laborious to move these household appliances, which is very inconvenient. In order to facilitate the movement of household appliances, in some solutions, rollers are provided on the base of the household appliances, which facilitate the movement. However, the rollers are easy to cause the household appliances to move when not in use, and in serious cases, they may even cause the household appliances to tip over, causing certain safety hazards. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a lifting base for household appliances which is convenient to move, safe and reliable.

[0004] According to the present invention, a lifting base for household appliances comprises an upper cover suitable for connecting to the household appliance, a lifting bottom cover and a lifting mechanism for driving the lifting bottom cover to lift and lower, the upper cover is formed with a cavity, the lifting bottom cover is accommodated in the cavity, a plurality of rollers are installed at the bottom of the lifting bottom cover, the lifting mechanism comprises a turntable and a motor driving the turntable, a slide with undulating height is formed on the turntable, the slide has a high-position slide and a low-position slide in the vertical direction, the high-position slide and the low-position slide are connected by an inclined slide, a plurality of support columns are arranged in the cavity of the upper cover, the support columns slide along the slide, when the support columns slide from the low-position slide to the high-position slide, the turntable contacts the lifting bottom cover and pushes the lifting bottom cover out of the cavity, and the roller contacts the ground.

[0005] The lifting base for household appliances provided by the present invention also has the following auxiliary technical features:

[0006] It further includes that a plurality of balls are arranged at the end of the support column, and the balls roll along the slideway.

[0007] It further includes that the lifting bottom cover is connected to the upper cover through a guide structure.

[0008] It further includes that the guide structure includes a plurality of guide grooves arranged on the lifting bottom cover and guide pillars arranged on the inner wall of the upper cover, and the guide pillars are inserted into the guide grooves.

[0009] It further includes that a shock absorbing spring is arranged in the guide groove, and the shock absorbing spring presses against the guide column.

[0010] It further includes that a connecting frame is arranged in the middle of the turntable, the motor is connected to a worm gear reduction mechanism, the reduction mechanism is connected to an output shaft, and the output shaft is connected to the connecting frame.

[0011] It further includes that a turntable frame is arranged on the lifting bottom cover, a plurality of supporting balls are arranged on the turntable frame, a guide rail is arranged at the bottom of the turntable, and the supporting balls are in contact with the guide rail.

[0012] It further includes a super capacitor device or a battery assembly connected to the motor.

[0013] It further includes that a mounting cavity is formed on the lifting base, and the motor is mounted in the mounting cavity.

[0014] It further includes that a support portion is formed on the bottom of the upper cover, and the support portion is in contact with the ground.

[0015] The lifting base for household appliances provided by the present invention has the following advantages over the prior art: the lifting bottom cover of the present invention is pushed out of the cavity when in use, so that the roller contacts the ground, thereby facilitating the movement of the household appliance. When not in use, the lifting bottom cover is stored in the cavity, so that the roller does not contact the ground, solving the problem of easy displacement of the roller and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the descending state of the present invention.

[0017] Figure 2 It is a cross-sectional view of the present invention in the ascending state.

[0018] Figure 3 It is a sectional stereoscopic view of the descending state of the present invention.

[0019] Figure 4 It is a sectional stereoscopic view of the present invention in the ascending state.

[0020] Figure 5 It is a three-dimensional exploded view of the present invention.

[0021] Figure 6 It is a three-dimensional diagram of the turntable in the present invention.

[0022] Figure 7 This is a three-dimensional diagram of the present invention without the top of the upper cover. DETAILED DESCRIPTION

[0023] In order to clearly illustrate the scheme in the present invention, preferred embodiments are given below and described in detail with reference to the accompanying drawings. The following description is essentially only exemplary and is not intended to limit the application or use of the present disclosure. It should be understood that in all the drawings, corresponding reference numerals represent the same or corresponding parts and features.

[0024] like Figures 1 to 7 As shown, the present invention provides a lifting base for household appliances, comprising an upper cover 1 suitable for connecting to the household appliance, a lifting bottom cover 2 and a lifting mechanism 3 for driving the lifting bottom cover 2 to lift. The upper cover 1 is formed with a cavity 11, the lifting bottom cover 2 is received in the cavity 11, a plurality of rollers 21 are installed at the bottom of the lifting bottom cover 2, the lifting mechanism 3 comprises a turntable 31 and a motor 32 for driving the turntable 31, the turntable 31 is formed with a slideway 4 with a height fluctuation, and the slideway 4 is provided with a plurality of rollers 21. The upper cover 1 has a high slide 41 and a low slide 42 in the vertical direction, and the high slide 41 is connected to the low slide 42 by an inclined slide 43. A plurality of support columns 12 are arranged in the cavity 11 of the upper cover 1, and the support columns 12 slide along the slide 4. When the support columns 12 slide from the low slide 42 to the high slide 41, the turntable 31 contacts the lifting bottom cover 2 and pushes the lifting bottom cover 2 out of the cavity 11, and the roller 21 contacts the ground. The lifting base of the present invention can be used in bladeless fans, electric fans, heaters, air conditioners, washing machines, refrigerators, etc. The upper cover 1 can be a separate component for carrying household appliances, or it can be the bottom structure of household appliances, that is, the upper cover 1 is a part of the structure of the household appliance. The support column 12 in the present invention remains stationary. When the turntable 31 rotates, different positions of the slideway 4 contact the support column 12. When the support column 12 slides from a low position to a high position, it will push the turntable 31 down. The turntable 31 also pushes the lifting bottom cover 2 down, so that the roller 21 is lowered and in contact with the ground. At this time, the household appliance can be moved by the roller 21. After the household appliance moves into place, the motor 32 drives the turntable 31 to continue rotating, the support column 12 moves from a high position to a low position, the turntable 31 rises, and at the same time, the lifting bottom cover 2 rises and is stored in the cavity 11. At this time, the upper cover 1 contacts the ground and plays a major supporting role. In this embodiment, the lifting bottom cover 2 and the turntable 31 are lifted by the deadweight of the household appliance, that is, the lifting bottom cover 2 is pressed into the cavity 11 by the deadweight.

[0025] See also Figures 1 to 7In the above embodiment given by the present invention, it is further included that a plurality of balls 13 are provided at the end of the support column 12, and the balls 13 roll along the slide 4. The balls 13 facilitate the support column 12 to slide on the slide 4, reducing friction. In this embodiment, the slide 4 has three high slides 41, three low slides 42 and three inclined slides 43, that is, it is composed of three groups, and the support column 12 also has three, each corresponding to a group of slides 4. The three-point support structure is more balanced.

[0026] See also Figures 1 to 7 In the above embodiment of the present invention, the lifting bottom cover 2 is further connected to the upper cover 1 via a guide structure 5. The guide structure 5 facilitates the lifting bottom cover 2 to move up and down in the cavity 11 of the upper cover 1, and the turntable 31 can push the lifting bottom cover 2 to move up and down.

[0027] See also Figures 1 to 7 In the above embodiment of the present invention, the guide structure 5 further includes a plurality of guide grooves 51 provided on the lifting bottom cover 2 and guide posts 52 provided on the inner wall of the upper cover 1, and the guide posts 52 are inserted into the guide grooves 51. In this embodiment, there are three guide grooves 51 and guide posts 52, and a three-point connection structure is adopted, so that the lifting is more stable.

[0028] See also Figures 1 to 7 In the above embodiment of the present invention, a damping spring 53 is further provided in the guide groove 51, and the damping spring 53 abuts against the guide post 52. The damping spring 53 plays a damping role and improves the stability of lifting.

[0029] See also Figures 1 to 7 In the above embodiment of the present invention, a connecting frame 33 is further provided in the middle of the rotating disk 31, the motor 32 is connected to a worm gear speed reduction mechanism 34, the speed reduction mechanism 34 is connected to an output shaft 35, and the output shaft 35 is connected to the connecting frame 33. The connecting frame 33 is connected to the rotating disk 31, and a flat shaft is formed on the output shaft 35, which is connected to the connecting frame 33 to drive the connecting frame 33 to rotate. The worm gear speed reduction mechanism 34 not only plays a role in speed reduction, but also has a large output torque, making the lifting more stable.

[0030] See also Figures 1 to 7 In the above embodiment of the present invention, the lifting bottom cover 2 is provided with a turntable frame 22, a plurality of supporting balls 23 are provided on the turntable frame 22, a guide rail 36 is provided at the bottom of the turntable 31, and the supporting balls 23 are in contact with the guide rail 36. The turntable 31 is supported by the supporting balls 23, and rotates more smoothly.

[0031] See also Figures 1 to 7 In the above embodiment of the present invention, it further includes a super capacitor device or a battery assembly 37 connected to the motor 32. The super capacitor device or the battery assembly 37 can provide power to the motor 32 in a power-off state.

[0032] See also Figures 1 to 7 In the above embodiment of the present invention, a mounting cavity 24 is formed on the lifting base 2, and the motor 32 is mounted in the mounting cavity 24. The mounting cavity 24 is conducive to the fixed installation of the motor 32. In addition, the worm gear reduction mechanism 34 and the super capacitor device or battery assembly 37 are also mounted in the mounting cavity 24.

[0033] See also Figures 1 to 7 In the above embodiment of the present invention, the bottom of the upper cover 1 is formed with a support portion 14, and the support portion 14 is in contact with the ground. The support portion 14 can be a support foot structure or other forms of support structures.

[0034] The roller in this embodiment is a universal wheel. When the lifting base of the present invention is connected to the main power supply (that is, the product it is used for is under normal power supply and normal working condition), the universal wheel is in a retracted state, and the entire lifting system is self-locked under the action of the motor's own locking force. When the power of the machine is turned off normally, the supercapacitor discharges (or the battery pack discharges) to drive the motor to rotate, the turntable 31 rotates, and the slide ball rises from a low position to a high position along the predetermined slide, pushing out the lifting bottom cover, that is, the universal wheel descends and contacts the ground. At this time, the universal wheel can be used to easily move the product to the desired position. When the universal wheel descends to the working position, the Hall detector or limit switch built into the lifting base will send a signal to the main control system to cut off the power to the motor, and use the motor's self-locking device to lock the entire lifting system.

[0035] In summary, the above contents are only embodiments of the present invention, which are only used to illustrate the principles of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lifting base for household appliances, comprising an upper cover suitable for connecting to the household appliance, a lifting bottom cover and a lifting mechanism for driving the lifting bottom cover to lift, the upper cover is formed with a cavity, the lifting bottom cover is received in the cavity, and a plurality of rollers are installed at the bottom of the lifting bottom cover, characterized in that: The lifting mechanism includes a turntable and a motor driving the turntable, a slide with undulating height is formed on the turntable, the slide has a high slide and a low slide in the vertical direction, the high slide and the low slide are connected by an inclined slide, a plurality of support columns are arranged in the cavity of the upper cover, the support columns slide along the slide, when the support columns slide from the low slide to the high slide, the turntable contacts the lifting bottom cover and pushes the lifting bottom cover out of the cavity, and the roller contacts the ground.

2. A lifting base for household appliances as claimed in claim 1, characterized in that: A plurality of balls are arranged at the end of the support column, and the balls roll along the slideway.

3. A lifting base for household appliances as claimed in claim 1, characterized in that: The lifting bottom cover is connected to the upper cover via a guide structure.

4. A lifting base for household appliances as claimed in claim 3, characterized in that: The guide structure comprises a plurality of guide grooves arranged on the lifting bottom cover and guide posts arranged on the inner wall of the upper cover, and the guide posts are inserted into the guide grooves.

5. A lifting base for household appliances as claimed in claim 4, characterized in that: A shock absorbing spring is arranged in the guide groove, and the shock absorbing spring presses against the guide column.

6. A lifting base for household appliances as claimed in claim 1, characterized in that: A connecting frame is arranged in the middle of the rotating disk, the motor is connected to a worm gear reduction mechanism, the reduction mechanism is connected to an output shaft, and the output shaft is connected to the connecting frame.

7. A lifting base for household appliances as claimed in claim 1, characterized in that: A turntable frame is arranged on the lifting bottom cover, a plurality of supporting balls are arranged on the turntable frame, a guide rail is arranged at the bottom of the turntable, and the supporting balls are in contact with the guide rail.

8. A lifting base for household appliances as claimed in claim 1, characterized in that: Also included is a super capacitor device or a battery assembly connected to the motor.

9. A lifting base for household appliances as claimed in claim 1, characterized in that: An installation cavity is formed on the lifting base, and the motor is installed in the installation cavity.

10. A lifting base for household appliances as claimed in claim 1, characterized in that: A supporting portion is formed at the bottom of the upper cover, and the supporting portion contacts the ground.

Images