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 idler 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 fluctuating height is formed on the rotating disc, and the motor is installed on 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 utility model relates to a base part used at the bottom of household appliance, mainly used for supporting household appliance. BACKGROUND

[0002] The household appliance in prior art is generally directly supported on the ground, and it is time-consuming and laborious to move the household appliance, which is very inconvenient. In order to facilitate the movement of the household appliance, a roller is arranged on the base of the household appliance in some schemes, and the roller is convenient for movement. However, the roller is prone to cause displacement of the household appliance when not in use, and in severe cases, it may also cause overturning, causing certain safety hazards. SUMMARY

[0003] The utility model provides a lifting base for household appliance convenient to move, safe and reliable.

[0004] According to the lifting base for household appliance provided by the utility model, the upper cover is shaped with a cavity, the lifting bottom cover is accommodated in the cavity, the bottom of the lifting bottom cover is provided with a plurality of rollers, the lifting mechanism includes a rotating disc and a motor for driving the rotating disc, the rotating disc is shaped with a height fluctuation slide, 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, the cavity of the upper cover is provided with a plurality of supporting columns, the supporting columns slide along the slide, when the supporting columns slide from the low slide to the high slide, the rotating disc is in contact with the lifting bottom cover and pushes the lifting bottom cover out of the cavity, and the rollers are in contact with the ground.

[0005] According to the lifting base for household appliance provided by the utility model, the following subsidiary technical features are further included:

[0006] Further, the end of the supporting column is provided with a plurality of balls, and the balls roll along the slide.

[0007] Further, the lifting bottom cover and the upper cover are connected through a guide structure.

[0008] Further, the guide structure includes a plurality of guide grooves arranged on the lifting bottom cover and a guide column arranged on the inner wall of the upper cover, and the guide column is inserted into the guide groove.

[0009] Further, the middle part of the rotating disc is provided with a connecting frame, the motor is connected with a worm gear reduction mechanism, the reduction mechanism is connected with an output shaft, and the output shaft is connected with the connecting frame.

[0010] Further comprising, the lifting bottom cover is provided with a rotating disc frame, a plurality of supporting balls are arranged on the rotating disc frame, the bottom of the rotating disc is provided with a guide rail, and the supporting balls are in contact with the guide rail.

[0011] Further comprising, the motor is connected with a super capacitor device or a battery assembly.

[0012] Further comprising, the lifting base is formed with a mounting cavity, and the motor is mounted in the mounting cavity.

[0013] Further comprising, the bottom of the upper cover is formed with a supporting part, and the supporting part is in contact with the ground.

[0014] Compared with the prior art, the lifting base for household appliances has the following advantages: the lifting bottom cover of the utility model is pushed out from the accommodating cavity during use, so that the rollers are in contact with the ground, thereby facilitating the movement of the household appliances. When not in use, the lifting bottom cover is accommodated in the accommodating cavity, so that the rollers are not in contact with the ground, the problem of easy displacement of the rollers is solved, and the safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a sectional view of the lowering state of the utility model.

[0016] Figure 2 is a sectional view of the lifting state of the utility model.

[0017] Figure 3 is a sectional view of the lowering state of the utility model.

[0018] Figure 4 is a sectional view of the lifting state of the utility model.

[0019] Figure 5 is an exploded view of the utility model.

[0020] Figure 6 is a perspective view of the rotating disc in the utility model.

[0021] Figure 7 is a perspective view of the utility model without the upper cover. DETAILED DESCRIPTION

[0022] In order to clearly illustrate the scheme in the utility model, the preferred embodiments are given below and are described in detail in combination with the 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.

[0023] AsFigures 1 to 7 The utility model provides a lift base for household electrical appliances, including one be suitable for with the upper cover 1 of household electrical appliances is connected, lift bottom cover 2 and drive the lift mechanism 3 of lift bottom cover 2, the upper cover 1 is shaped with a cavity 11, lift bottom cover 2 is received in the cavity 11, the bottom of lift bottom cover 2 is equipped with a plurality of gyro wheel 21, the lift mechanism 3 includes a carousel 31 and drive carousel 31's motor 32, carousel 31 is shaped with the height undulation slide 4 on, slide 4 has high slide 41 and low slide 42 along the vertical direction, high slide 41 with low slide 42 between by the inclined slide 43 is connected, the cavity 11 of upper cover 1 is provided with a plurality of support column 12, support column 12 along slide 4 slides, when support column 12 from low slide 42 slides to high slide 41, carousel 31 with lift bottom cover 2 contact and push lift bottom cover 2 from the cavity 11, gyro wheel 21 with ground contact. The utility model lift base can be used in bladeless fan, electric fan, warmer, air conditioner, washing machine, refrigerator and so on. The upper cover 1 can be a separate component for carrying household electrical appliances, or it can be the bottom structure of the household electrical appliance, that is, the upper cover 1 is part of the structure of the household electrical appliance. In the utility model, the support column 12 remains stationary, and when the carousel 31 rotates, different positions of the slide 4 come into contact with the support column 12. When the support column 12 slides from the low position to the high position, it pushes the carousel 31 down. The carousel 31 simultaneously pushes the lift bottom cover 2 down, thereby causing the gyro wheel 21 to descend and come into contact with the ground. At this time, the household electrical appliance can be moved by the gyro wheel 21. After the household electrical appliance is moved into position, the motor 32 drives the carousel 31 to continue rotating. The support column 12 moves from the high position to the low position. The carousel 31 rises, and at the same time, the lift bottom cover 2 rises and is received in the cavity 11. At this time, the upper cover 1 comes into contact with the ground, playing a major supporting role. In this embodiment, the lifting of the lift bottom cover 2 and the carousel 31 is achieved by the weight of the household electrical appliance, that is, the lift bottom cover 2 is pressed into the cavity 11 by its own weight.

[0024] Referring to Figures 1 to 7 In the above embodiment of the utility model, further comprising, the end of the support column 12 is provided with a plurality of balls 13, the balls 13 roll along the slide 4. The balls 13 facilitate the sliding of the support column 12 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, i.e. 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.

[0025] Referring to Figures 1 to 7Further comprising, the lifting bottom cover 2 and the upper cover 1 are connected through the guide structure 5, the guide structure 5 is favorable for the lifting bottom cover 2 to lift up and down in the cavity 11 of the upper cover 1, and the rotating disc 31 can push the lifting bottom cover 2 to move up and down.

[0026] Referring to Figures 1 to 7 Further comprising, the guide structure 5 comprises a plurality of guide grooves 51 arranged on the lifting bottom cover 2 and guide columns 52 arranged on the inner wall of the upper cover 1, and the guide columns 52 are inserted into the guide grooves 51, the guide grooves 51 and the guide columns 52 in the embodiment are three, a three-point connection structure is adopted, and lifting is more stable.

[0027] Referring to Figures 1 to 7 Further comprising, a connecting frame 33 is arranged at the middle portion of the rotating disc 31, a worm gear speed reduction mechanism 34 is connected with the motor 32, the speed reduction mechanism 34 is connected with an output shaft 35, and the output shaft 35 is connected with the connecting frame 33, the connecting frame 33 and the rotating disc 31 are connected together, a flat shaft is formed on the output shaft 35, the flat shaft is connected with the connecting frame 33, and the connecting frame 33 is driven to rotate, the worm gear speed reduction mechanism 34 not only plays a role of speed reduction, but also has large output torque, and lifting is more stable.

[0028] Referring to Figures 1 to 7 Further comprising, a rotating disc frame 22 is arranged on the lifting bottom cover 2, a plurality of supporting balls 23 are arranged on the rotating disc frame 22, a guide rail 36 is arranged at the bottom of the rotating disc 31, and the supporting balls 23 are in contact with the guide rail 36, the rotating disc 31 is supported by the supporting balls 23, and rotation is more smooth.

[0029] Referring to Figures 1 to 7 Further comprising, a super capacitor device or a battery assembly 37 connected with the motor 32 is further included, and the super capacitor device or the battery assembly 37 can provide power supply for the motor 32 in a power-off state.

[0030] Referring to Figures 1 to 7 Further comprising, an installation cavity 24 is formed on the lifting base 2, and the motor 32 is installed in the installation cavity 24, the installation cavity 24 is favorable for fixing and installing the motor 32, in addition, the worm gear speed reduction mechanism 34 and the super capacitor device or the battery assembly 37 are also installed in the installation cavity 24.

[0031] Referring to Figures 1 to 7Further comprising a support part 14 formed at the bottom of the upper cover 1, and the support part 14 is in contact with the ground.

[0032] The roller in the embodiment is a universal wheel. When the main power is turned on (i.e. the product is normally powered and in a normal working state), the universal wheel is in a retracted state, and the whole lifting system is self-locked under the self-locking force of the motor. When the power of the machine is normally turned off, the super capacitor discharges (or the battery pack discharges) to drive the motor to rotate, the rotating disc 31 rotates, the slide ball rises along the predetermined slide from the low position to the high position, and the lifting bottom cover is pushed out, i.e. the universal wheel is lowered to contact the ground. At this time, the universal wheel can be used to easily move the product to the desired position. When the universal wheel is lowered to the working position, the Hall detector or limit switch built-in the lifting base sends a signal to the main control system to make the motor power off, and the self-locking device of the motor locks the whole lifting system.

[0033] In summary, the above-mentioned content is only an embodiment of the present application, which is only used to explain the principle of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A lifting base for a household appliance, comprising an upper cover adapted for connection with the household appliance, a lifting bottom cover, and a lifting mechanism for driving the lifting bottom cover to rise and fall, wherein the upper cover is formed with a cavity, the lifting bottom cover is housed in the cavity, and a plurality of rollers are installed on the bottom of the lifting bottom cover, characterized in that: The lifting mechanism comprises a rotating disc and a motor for driving the rotating disc, the rotating disc is shaped with a height fluctuation slide, the slide has high and low slides in vertical direction, the high slide is connected with the low slide by an inclined slide, the cavity of the upper cover is provided with a plurality of support columns, the support columns slide along the slide, when the support columns slide from the low slide to the high slide, the rotating disc contacts with the lifting bottom cover and pushes the lifting bottom cover out of the cavity, the rollers contact with the ground.

2. A lifting base for a domestic appliance as claimed in claim 1, characterized in that: The end of the support column is provided with a plurality of balls, the balls roll along the slide.

3. A lifting base for a domestic appliance as claimed in claim 1, characterized in that: The lifting bottom cover is connected with the upper cover by a guide structure.

4. A lifting base for a domestic appliance 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 columns arranged on the inner wall of the upper cover, the guide columns are inserted into the guide grooves.

5. A lifting base for a domestic appliance as claimed in claim 1, characterized in that: The middle part of the rotating disc is provided with a connecting frame, the motor is connected with a worm gear reduction mechanism, the reduction mechanism is connected with an output shaft, the output shaft is connected with the connecting frame.

6. A lifting base for a domestic appliance as claimed in claim 1, characterized in that: The lifting bottom cover is provided with a rotating disc frame, the rotating disc frame is provided with a plurality of support balls, the bottom of the rotating disc is provided with a guide rail, the support balls contact with the guide rail.

7. A lifting base for a domestic appliance as claimed in claim 1, characterized in that: It also comprises a super capacitor device or a battery assembly connected with the motor.

8. A lifting base for a domestic appliance as claimed in claim 1, characterized in that: The lifting base is shaped with a mounting cavity, the motor is mounted in the mounting cavity.

9. A lifting base for a domestic appliance as claimed in claim 1, characterized in that: The bottom of the upper cover is shaped with a support part, the support part contacts with the ground.

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