CN106814755A - A kind of electrical equipment and method for automatically leveling with self-level(l)ing lower margin - Google Patents

Abstract

The invention provides an electrical appliance with a self-leveling foot and an automatic leveling method. A self-leveling foot is provided at the bottom of the electrical appliance. The self-leveling foot includes a driving device, a bracket, a worm, a worm wheel and an adjustment support rod. The driving device is installed On the bracket and drive the worm to rotate, the worm and the worm wheel cooperate to make the worm wheel rotate, the adjustment support rod is passed through the hole on the bracket, the adjustment support rod is provided with teeth and meshes with the teeth of the worm gear to move upward or downward, and the adjustment support rod The bottom end is provided with a pressure sensor, and the pressure sensor and the driving device are electrically connected with the controller of the electrical appliance. The controller sends an instruction to make the pressure sensor detect the pressure on the supporting surface of the foot and compare it with the set pressure. If the pressure detected by the pressure sensor is within the set pressure range, the controller considers that the foot of the electrical appliance is leveled and prompts user. It can realize automatic leveling, which is simple and has high leveling accuracy, avoids the tedious manual screwing of the feet for leveling, and improves the user experience.

Description

An electrical appliance with self-leveling feet and an automatic leveling method

technical field

The invention relates to an electric appliance with self-leveling feet and an automatic leveling method, belonging to the field of electric appliance leveling devices and methods.

Background technique

Existing electrical appliances with feet, such as washing machines, require manual adjustment for the leveling of the feet, which is time-consuming and labor-intensive and has poor precision. Although the existing washing machine has carried out horizontal correction to the four feet of the washing machine when it leaves the factory, the support surfaces such as the bottom surface that each consumer placed on the washing machine is used to support the washing machine are completely different. Once the force on the feet is uneven, or due to the phenomenon of weak legs, the washing machine will produce serious vibration and noise problems during washing, rinsing, especially during the drying process, which will seriously affect the performance of the product and bring extremely bad results to consumers. user experience. This requires consumers to ensure that the washing machine is placed on a hard, flat, clean surface free of water and grease. Before use, perform leveling, check whether the fuselage is slightly shaken, and adjust the feet to ensure that it does not shake. These steps are cumbersome, cumbersome, and have relatively large errors, and manual adjustment by the user reduces the experience for the user.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an electrical appliance with self-leveling feet and an automatic leveling method, which can realize automatic leveling of the electrical appliance, save manpower and have better leveling accuracy.

In order to solve the problems of the technologies described above, the present invention adopts the basic idea of technical solution to be:

An electrical appliance with self-leveling feet. Four feet are arranged at the four corners of the bottom of the appliance. The feet include self-leveling feet. A pressure sensor is arranged at the bottom of the self-leveling feet. connected, the controller judges whether the four feet are leveled according to the pressure detected by the pressure sensor.

Furthermore, the two feet near the front of the appliance are self-leveling feet.

Further, the self-leveling foot includes a driving device, a bracket, a worm, a worm wheel and an adjustment support rod. The driving device is installed on the bracket and drives the worm to rotate. The worm and the worm wheel are rotatably installed on the bracket. , the adjustment support rod is installed in the hole on the bracket, and can be installed on the bracket up and down. The adjustment support rod is provided with teeth and meshed with the teeth of the worm gear. The worm gear and the adjustment support rod cooperate to drive the upright adjustment support rod upward or downward Moving downward, a pressure sensor is arranged at the bottom end of the adjustment support rod.

An automatic leveling method for electrical appliances with self-leveling feet. The pressure sensor detects the pressure on the supporting surface of the feet, and the controller compares the pressure detected by the pressure sensor with the set pressure range. If the pressure sensor detects If the pressure is within the set pressure range, the controller of the appliance thinks that the feet of the appliance are leveled and prompts the user; if the pressure detected by the pressure sensor is not within the set pressure range, the controller of the appliance thinks that the feet of the appliance are not leveled and sends According to the pressure detected by the pressure sensor, the controller sends an instruction to make the driving device act to adjust the height of the feet until the pressure detected by the pressure sensor is within the set pressure range. Send an instruction to make the drive no longer act, and prompt the user.

Further, the set pressure range is 1/50-1/4 of the self-weight of the electrical appliance.

Further, when the pressure detected by the pressure sensor on a certain self-leveling foot is lower than the minimum value of the set pressure, the controller of the electrical appliance sends an instruction to activate the driving device and then move the self-leveling foot downward, at least until When the pressure detected by the pressure sensor reaches the minimum value of the set pressure, the controller of the electrical appliance thinks that the feet of the electrical appliance have been leveled and prompts the user.

Further, when the pressure detected by the pressure sensor on a certain self-leveling foot is lower than the minimum value of the set pressure, the controller of the electrical appliance sends an instruction to make the driving device act so that the self-leveling foot moves downward, and the self-leveling foot moves downward. When the leveling foot is driven by the driving device and moves down to its limit position, when the pressure detected by the pressure sensor installed on it is still lower than the minimum value of the set pressure, the controller of the electrical appliance sends an instruction to make the driving device act and then After the other self-leveling feet move upward for a certain distance, the controller of the electrical appliance sends an instruction to make the pressure sensor installed on the self-leveling feet of the appliance detect the pressure on the supporting surface of the feet, and compare it with the set pressure to judge the pressure. Whether the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range, if the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range, the controller of the electrical appliance considers that the electrical foot level, and prompt the user.

Further, when the pressure detected by the pressure sensor on a certain self-leveling foot is greater than the maximum value of the set pressure, the controller of the electrical appliance sends an instruction to activate the driving device and then move the self-leveling foot downward, at least until When the pressure detected by the pressure sensor reaches the maximum value of the set pressure, the controller of the electrical appliance thinks that the feet of the electrical appliance have been leveled, and prompts the user.

Further, when the pressure detected by the pressure sensor on a certain self-leveling foot is greater than the maximum value of the set pressure, the controller of the electrical appliance sends an instruction to make the driving device act so that the self-leveling foot moves downward, and the self-leveling foot moves downward. When the leveling foot is driven by the driving device and moves down to its limit position, when the pressure detected by the pressure sensor installed on it is still greater than the maximum value of the set pressure, the controller of the electrical appliance sends an instruction to make the driving device act and then After the other self-leveling feet move upward for a certain distance, the controller of the electrical appliance sends an instruction to make the pressure sensor installed on the self-leveling feet of the appliance detect the pressure on the supporting surface of the feet, and compare it with the set pressure to judge the pressure. Whether the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range, if the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range, the controller of the electrical appliance considers that the electrical foot level, and prompt the user.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

The invention relates to an electric appliance with self-leveling feet and an automatic leveling method. When the electric appliance is being leveled, the controller of the electric appliance can send an instruction to make the pressure sensor installed on the self-leveling feet of the electric appliance detect the supporting surface of the feet. The pressure is compared with the set pressure, and the pressure of the pressure sensor is compared with the set pressure to judge whether the electrical feet are leveled. When it is detected and judged that the electrical appliance is not leveled, the controller of the electrical appliance sends an instruction to make the driving device act and then the self-leveling foot moves, so that the pressure on the pressure sensor on the self-leveling foot meets the set pressure requirements, so that the electrical foot Leveling. It can realize automatic leveling, is simple and has high leveling accuracy, avoids the tediousness of manually screwing the feet for leveling, and improves the user experience.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

Figure 1 is a schematic diagram of the installation of self-leveling feet on a washing machine.

Fig. 2 is a structural schematic diagram of the self-leveling foot.

Fig. 3 is a structural schematic diagram of the self-leveling foot.

Fig. 4 is a structural schematic diagram of the self-leveling foot.

Fig. 5 is a sectional view taken along line B-B of Fig. 4 .

1. Motor 2, bracket 3, worm 4, worm gear 5, adjustment support rod 6, rubber pad 7, bearing seat 8, worm gear shaft 9, motor output shaft 10, pressure sensor 11, housing 12, bottom plate 13, self-leveling feet 14. Conventional feet.

detailed description

Embodiment one

The present invention is an electrical appliance with self-leveling feet. In this embodiment, a washing machine is taken as an example. As shown in Figure 1, in this embodiment, four feet are provided at the four corners of the bottom of the washing machine. The two feet at the top are conventional feet 14, which cannot be automatically leveled, but have been fixed in height when leaving the factory.

In this embodiment, the two feet near the front of the appliance are self-leveling feet 13 . In other embodiments, the four feet may also be self-leveling feet.

As shown in Figure 2-5, the self-leveling foot includes a driving device, a worm, a worm wheel, an adjustment support rod and a bracket. The self-leveling feet are installed on the washing machine through the brackets, and the washing machine is placed on the supporting surface of the feet through the feet.

The support 2 is groove-shaped, and the two groove walls are arranged up and down and arranged horizontally. The worm 3 is vertically arranged in the groove formed by the support 2. The worm 2 is connected with the driving device and driven by the driving device. In this embodiment, the driving device is a motor 1, the motor 1 is installed above the bracket 2 and both are fixedly connected, and the motor output shaft 9 is connected with the worm 3 to drive the worm 3 to rotate.

The bracket 2 can be processed separately and then installed on the bottom plate, or can be formed by punching and folding the bottom plate. Worm wheel 4 is arranged in the groove that support forms, and worm wheel 4 meshes with worm screw 3, and worm wheel shaft 8 is perpendicular to worm screw 3, and worm wheel shaft 8 is installed on the bearing seat 7 by bearing, and bearing seat is fixed in the groove that support 2 forms.

The adjusting support rod 5 is set upright and is installed in the holes of the upper and lower groove walls of the bracket. One side of the adjusting support rod 5 has teeth and meshes with the teeth of the worm wheel 4. Through the positive and negative rotation of the worm wheel, the adjusting support rod 5 is driven upward or toward down exercise. The lower end of the adjustment support rod is located below the bracket, and a pressure sensor and a rubber pad 6 are fixedly arranged at the lower end of the adjustment support rod, and the rubber pad wraps the pressure sensor 10 .

The driving device drives the worm 3 to rotate, and the worm 3 cooperates with the worm wheel 4 to rotate the worm wheel 4, and the worm wheel 4 drives the adjustment support rod 5 to move upward or downward, and the pressure sensor and the driving device are electrically connected to the controller of the electrical appliance. By comparing the pressure detected by the pressure sensor on the self-leveling feet with the set pressure, it is judged whether the electrical appliances with self-leveling feet are leveled.

Embodiment two

The automatic leveling method for electrical appliances with self-leveling feet described in this embodiment is implemented on the electrical appliances with self-leveling feet described in Embodiment 1.

The electrical appliances are placed on the supporting surface of the feet, which can be a desktop or the ground, depending on the placement of the electrical appliances.

When the user operates the leveling program, the controller of the appliance sends an instruction to make the pressure sensor installed on the self-leveling foot of the appliance detect the pressure on the supporting surface of the foot and compare it with the set pressure. The set pressure is a range value, and its value It is 1/50-1/4 of the self-weight of the electrical appliance. If the pressure detected by the pressure sensor is within the set pressure range, the controller of the appliance considers that the ground of the appliance is level and prompts the user; if the pressure detected by the pressure sensor is not within the set pressure range, the controller of the appliance considers that the ground of the appliance is The feet are not leveled, and according to the pressure detected by the detected pressure sensor, the controller sends instructions to make the driving device act to adjust the height of the feet. The driving device drives the worm screw of the self-leveling feet to rotate and then drives the worm wheel to rotate, and the worm wheel rotates to drive the adjustment support The rod 5 moves until the pressure detected by the pressure sensor is within the set pressure range. The controller of the electrical appliance thinks that the feet of the electrical appliance are leveled, sends an instruction to make the drive device no longer act, and prompts the user.

Specifically, when the pressure detected by the pressure sensor on a certain self-leveling foot is lower than the minimum value of the set pressure, the controller of the electrical appliance thinks that the foot of the electrical appliance is not leveled, and the controller of the electrical appliance sends an instruction to make the driving device act Furthermore, the self-leveling feet are moved downward until at least the pressure detected by the pressure sensor reaches the minimum value of the set pressure, and the controller of the electrical appliance considers that the feet of the electrical appliance have been leveled, and prompts the user.

In some cases, when the pressure detected by the pressure sensor on a certain self-leveling foot is lower than the minimum value of the set pressure, the controller of the electrical appliance sends an instruction to make the driving device act so that the self-leveling foot moves downward , when the self-leveling foot is driven by the driving device and moves down to its limit position, when the pressure detected by the pressure sensor installed on it is still lower than the minimum value of the set pressure, it means that the self-leveling foot is in the ground The supporting surface of the foot is low, and the self-leveling foot is still not enough to make it contact with the supporting surface after the downward movement. In order to make the self-leveling foot contact with the supporting surface of the foot, the controller of the electrical appliance sends an instruction to make the driving device act Furthermore, after the other self-leveling feet move upward for a certain distance, the overall height of the front of the appliance will drop, and the self-leveling feet may touch the supporting surface of the feet where they are located. The pressure sensor on the leveling foot detects the pressure on the supporting surface of the foot, and compares it with the set pressure to judge whether the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range, if the self-leveling foot When the pressure detected by the pressure sensor on the leveling feet is within the set pressure range, the controller of the electrical appliance considers that the feet of the electrical appliance have been leveled, and prompts the user.

If the pressure detected by the pressure sensor on the self-leveling foot is still lower than the minimum set pressure, it means that the self-leveling foot is still not in contact with the supporting surface of the foot, and the controller of the electrical appliance sends an instruction to make the driving device act and then After the other self-leveling feet move upward for a certain distance, the controller of the electrical appliance sends an instruction to make the pressure sensor installed on the self-leveling feet of the appliance detect the pressure on the supporting surface of the feet, and compare it with the set pressure to judge the pressure. Whether the pressure detected by the pressure sensor on the self-leveling feet is within the set pressure range. Repeat the above actions at least until the pressure detected by the pressure sensor on the self-leveling foot reaches the minimum value of the set pressure, the controller of the electrical appliance considers that the foot of the electrical appliance has been leveled, and prompts the user.

If the other self-leveling feet move up to their limit position and still cannot be leveled, the controller of the electrical appliance thinks that the electrical feet cannot be leveled, and prompts the user that the electrical appliance cannot be leveled, requesting to change the location of the electrical appliance. After a better placement, use the above method again for leveling.

When the pressure detected by the pressure sensor on a certain self-leveling foot is greater than the maximum value of the set pressure, it is considered that the electrical appliance is tilted towards this foot, and the controller of the electrical appliance sends an instruction to make the driving device act so that the self-leveling foot goes down Movement, at least until the pressure detected by the pressure sensor on the self-leveling foot decreases to the maximum value of the set pressure, the controller of the electrical appliance considers that the electrical foot has been leveled, and prompts the user.

In some cases, when the pressure detected by the pressure sensor on a self-leveling foot is greater than the maximum value of the set pressure, the controller of the electrical appliance sends an instruction to activate the driving device and then move the self-leveling foot downward , when the self-leveling foot is driven by the driving device to move down to its limit position, when the pressure detected by the pressure sensor installed on it is still greater than the maximum value of the set pressure, it is considered that the self-leveling foot is in The support surface of the self-leveling foot is low and the appliance is tilted towards this self-leveling foot. In order to reduce the inclination of the appliance to the self-leveling foot, the controller of the appliance sends an instruction to make the driving device act and then move the other self-leveling feet upward for a certain distance, even if the length of the other self-leveling feet protruding downward Shorten, so that the appliance deflects in the direction of other self-leveling feet, and the controller of the appliance sends an instruction to make the pressure sensor installed on the self-leveling feet of the appliance detect the pressure on the supporting surface of the feet, and compare it with the set pressure , to judge whether the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range, if the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range, the controller of the appliance considers that the The feet are leveled and the user is prompted. If the pressure detected by the pressure sensor on the self-leveling foot is still greater than the maximum set pressure, the controller of the electrical appliance sends an instruction to make the drive device act, and then the other self-leveling feet continue to move upward for a certain distance, so that the electrical appliance moves toward the other The direction of the self-leveling foot continues to deflect and tilt, and the controller of the appliance sends an instruction to make the pressure sensor installed on the self-leveling foot of the appliance detect the pressure on the supporting surface of the foot, and compare it with the set pressure to judge the self-leveling. Whether the pressure detected by the pressure sensor on the flat foot is within the set pressure range. Repeat the above actions at least until the pressure detected by the pressure sensor on the self-leveling foot decreases to the maximum value of the set pressure, the controller of the electrical appliance considers that the foot of the electrical appliance has been leveled, and prompts the user.

If the other self-leveling feet move up to their limit position and still cannot be leveled, the controller of the electrical appliance thinks that the electrical feet cannot be leveled, and prompts the user that the electrical appliance cannot be leveled, requesting to change the location of the electrical appliance. After a better placement, use the above method again for leveling.

The invention relates to an electric appliance with self-leveling feet and an automatic leveling method. When the electric appliance is being leveled, the controller of the electric appliance can send an instruction to make the pressure sensor installed on the self-leveling feet of the electric appliance detect the supporting surface of the feet. Compared with the set pressure, the pressure detected by the pressure sensor is compared with the set pressure to judge whether the electrical appliance is leveled. When it is detected and judged that the electrical appliance is not leveled, the controller of the electrical appliance sends an instruction to make the driving device act and then the self-leveling feet move, so that the pressure detected by the pressure sensor on the self-leveling feet meets the set pressure requirements, so that the electrical ground Level your feet. It can realize automatic leveling, is simple and has high leveling accuracy, avoids the tediousness of manually screwing the feet for leveling, and improves the user experience.

The implementations in the above examples can be further combined or replaced, and the examples are only descriptions of preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention. Various changes and improvements to the technical solutions of the present invention made by those skilled in the art belong to the protection scope of the present invention.

Claims (9)

1. An electrical appliance with self-leveling feet, characterized in that four corners of the bottom of the appliance are provided with four feet, the feet include self-leveling feet, and a pressure sensor is provided at the bottom of the self-leveling feet, and the pressure sensor It is electrically connected with the controller of the electrical appliance, and the controller judges whether the four ground feet are leveled according to the pressure detected by the pressure sensor. 2. An electrical appliance with self-leveling feet according to claim 1, wherein the two feet near the front of the appliance are self-leveling feet. 3. An electrical appliance with self-leveling feet according to claim 1 or 2, characterized in that: the self-leveling feet include a driving device, a bracket, a worm, a worm wheel and an adjusting support rod, and the driving device is installed on the bracket and The worm is driven to rotate, and the worm and the worm wheel are rotatably installed on the bracket. The worm and the worm wheel cooperate to make the worm wheel rotate. The teeth mesh with the teeth of the worm gear, and the worm gear cooperates with the adjustment support rod to drive the upright adjustment support rod to move upward or downward, and a pressure sensor is arranged at the bottom end of the adjustment support rod. 4. An automatic leveling method for electrical appliances with self-leveling feet, characterized in that: the pressure sensor detects the pressure on the supporting surface of the feet, and the controller compares the pressure detected by the pressure sensor with the set pressure range, If the pressure detected by the pressure sensor is within the set pressure range, the controller of the appliance considers that the feet of the appliance are leveled and prompts the user; If the pressure detected by the pressure sensor is not within the set pressure range, the controller of the appliance thinks that the feet of the appliance are not leveled, and according to the pressure detected by the pressure sensor, the controller sends an instruction to make the driving device act to adjust the height of the feet , until the pressure detected by the pressure sensor is within the set pressure range, the controller of the electrical appliance considers that the feet of the electrical appliance are leveled, sends an instruction to make the drive device no longer act, and prompts the user. 5. An automatic leveling method for electrical appliances with self-leveling feet according to claim 4, characterized in that: the set pressure range is 1/50-1/4 of the self-weight of the electrical appliance. 6. A method for automatically leveling electrical appliances with self-leveling feet according to claim 4, characterized in that: when the pressure detected by the pressure sensor on a certain self-leveling foot is less than the minimum value of the set pressure , the controller of the electrical appliance sends an instruction to make the driving device act and then the self-leveling foot moves downward, at least until the pressure detected by the pressure sensor reaches the minimum value of the set pressure, the controller of the electrical appliance considers that the foot of the electrical appliance has been leveled, and prompt the user. 7. A method for automatically leveling electrical appliances with self-leveling feet according to claim 4, characterized in that: when the pressure detected by a pressure sensor on a self-leveling foot is less than the minimum value of the set pressure , the controller of the electrical appliance sends an instruction to make the driving device act and then the self-leveling foot moves downward. When the self-leveling foot is driven by the driving device and moves downward to its limit position, the pressure sensor installed on it detects When the pressure is still lower than the minimum value of the set pressure, the controller of the electrical appliance sends an instruction to make the driving device act and then the other self-leveling feet move upward for a certain distance, and then the controller of the appliance sends an instruction to make the self-leveling feet installed on the appliance The pressure sensor on the self-leveling foot detects the pressure on the supporting surface of the foot, and compares it with the set pressure to judge whether the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range. If the self-leveling foot If the pressure detected by the pressure sensor on the device is within the set pressure range, the controller of the electrical appliance thinks that the feet of the electrical appliance have been leveled and prompts the user. 8. A method for automatically leveling electrical appliances with self-leveling feet according to claim 4, characterized in that: when the pressure detected by a pressure sensor on a self-leveling foot is greater than the maximum value of the set pressure , the controller of the electrical appliance sends an instruction to make the driving device act and then the self-leveling foot moves downward, at least until the pressure detected by the pressure sensor reaches the maximum value of the set pressure, the controller of the electrical appliance considers that the electrical foot has been leveled, and prompt the user. 9. A method for automatically leveling electrical appliances with self-leveling feet according to claim 4, characterized in that: when the pressure detected by a pressure sensor on a certain self-leveling foot is greater than the maximum value of the set pressure , the controller of the electrical appliance sends an instruction to make the driving device act and then the self-leveling foot moves downward. When the self-leveling foot is driven by the driving device and moves downward to its limit position, the pressure sensor installed on it detects When the pressure is still greater than the maximum value of the set pressure, the controller of the electrical appliance sends an instruction to make the driving device act and then the other self-leveling feet move upward for a certain distance, and then the controller of the appliance sends an instruction to make the self-leveling feet installed on the appliance The pressure sensor on the self-leveling foot detects the pressure on the supporting surface of the foot, and compares it with the set pressure to judge whether the pressure detected by the pressure sensor on the self-leveling foot is within the set pressure range. If the self-leveling foot If the pressure detected by the pressure sensor on the device is within the set pressure range, the controller of the electrical appliance thinks that the feet of the electrical appliance have been leveled and prompts the user.