ROTATABLE DRAWING BOARD AND CONTROL METHOD

The present disclosure provides a rotatable drawing board and a control method. The rotatable drawing board includes a main case and an axially rotatable drawing board body arranged on a front surface of the main case; a control circuit board and a drive motor for driving the drawing board body to axially rotate are arranged inside the main case; an output shaft of the drive motor is connected to a central portion of the drawing board body, or a supporting rod extending into the main case is arranged at a central portion of a back surface of the drawing board body; the output shaft of the drive motor is rotatably movably connected to the supporting rod to drive the supporting rod and the drawing board body to axially rotate; and the drive motor is electrically connected to the control circuit board.

TECHNICAL FIELD

The present disclosure relates to the technical field of rotatable drawing board products, and in particular, to a rotatable drawing board with an outstanding application effect, and a control method.

BACKGROUND

A drawing board is a type of painter for work or entertainment. With the continuous improvement of the quality of life, there have been significant improvements on many aspects of drawing boards, such as structural composition, functional characteristics, and humanization. For example, some drawing boards support manual axial angle adjustment to meet higher use convenience, while some drawing boards support automatic or manual light adjustment to meet use needs of different environmental.

The invention patent No. CN202211228904.0, entitled “Foldable Toy Drawing Board”, specifically discloses a foldable toy drawing board, including a drawing board, an outer frame, and a supporting frame. A first hinge handle is arranged on a side wall of the drawing board; the drawing board is hinged inside the outer frame through the first hinge handle; a rear side of the outer frame is hinged with a first folding component. the folding component includes a first folding arm, a second folding arm, a threaded sleeve, and a rotating disk; one end of the first folding arm is hinged to the rear side of the outer frame, and the other end is hinged with one end of the second folding arm; the other end of the second folding arm is hinged to the rotating disk; threads are formed on exteriors of the hinged ends of both the first folding arm and the second folding arm, and the threaded sleeve is rotatably arranged on the first folding arm; and the rotating disk is rotatably arranged at an upper end of the supporting frame. In this invention, the entire drawing board can be adjusted in angle, and the outer frame can rotate under the action of the first folding component. At the same time, the entire outer frame can rotate relative to the supporting frame to meet different needs of users for angles of the drawing board.

Although the above design in the prior art solves the problem of overall rotation of the outer frame to adjust the angle of the drawing board, the user experience is poor because the angle is manually adjusted. Furthermore, there are many structural components, which is not conducive to maintenance.

Based on this, it is necessary to design a more intelligent and convenient drawing board product on the basis of the idea of the prior art.

SUMMARY

The present application solves the following problems in the prior art:

Although the design in the prior art solves the problem of overall rotation of the outer frame to adjust the angle of the drawing board, the user experience is poor because the angle is manually adjusted. Furthermore, there are many structural components, which is not conducive to maintenance.

Solutions used by the present disclosure to solve the technical problems are as follows:

A rotatable drawing board and a control method are provided. The rotatable drawing board includes a main case and an axially rotatable drawing board body arranged on a front surface of the main case, wherein a control circuit board and a drive motor for driving the drawing board body to axially rotate are arranged inside the main case;an output shaft of the drive motor is connected to a central portion of the drawing board body, or a supporting rod extending into the main case is arranged at a central portion of a back surface of the drawing board body; the output shaft of the drive motor is rotatably movably connected to the supporting rod to drive the supporting rod and the drawing board body to axially rotate; andthe drive motor is electrically connected to the control circuit board.

Preferably, a plurality of sensing switches used for sensing a usage state or a stress state of the drawing board body are further arranged at a portion between the main case and the drawing board body or on an inner side of the main case.

Preferably, each sensing switch is a pressure sensing switch or a distance sensing switch;a press spring used for playing an elastic restoration role is further arranged on the inner side of the main case; and the press spring is located at a bottom of the drive motor or is located at the other end portion of the drawing board body opposite to the supporting rod.

Preferably, a motor cover used for accommodating and mounting the drive motor is further arranged inside the main case;an outer side of the motor cover is connected to the main case; and a shaft hole for arranging the output shaft in a penetrating manner is formed in an upper part of the motor cover.

Preferably, a spring limiting post used for accommodating and arranging the press spring is further integrally arranged on the inner side of the main case;the drive motor is located at an upper part of the spring limiting post; a lower part of the drive motor is in contact with a top of the press spring;a limiting slot is formed in the spring limiting post; a limiting post corresponding to the limiting slot is arranged at the lower part of the drive motor; the limiting post is embedded into the limiting slot to limit up-and-down movement of the drive motor;or, a motor limiting post matched with the spring limiting post is arranged at the lower part of the drive motor; and the entire motor limiting post is movably clamped into the spring limiting post or sleeves an outer side of the spring limiting post to limit up-and-down movement of the drive motor.

Preferably, the main case includes a lower case and an upper case matched and abutted with an upper part of the lower case; the drawing board body is located on an inner side of the upper case;the upper case is of a circular ring shape or a circular drawing board accommodating hole used for matching and accommodating the drawing board body is formed in a portion of the drawing board body;the plurality of sensing switches are arranged on an inner side of the lower case in a surrounding manner; and switch mounting slots used for mounting the sensing switches are further formed in the upper part of the lower case.

Preferably, a control button used for controlling the drive motor to run is further arranged on an outer side of the main case; or a wireless communication module is arranged inside the main case to receive an external control signal to control the drive motor to run; or the outer side of the main case is connected with a USB connector to supply power or transmit a signal.

Preferably, a cross section of the upper case is of an inverted L-shaped structure; anda diameter of the drawing board body is slightly greater than a hole diameter of the drawing board accommodating hole of the upper case, to avoid the drawing board body from falling out from the drawing board accommodating hole.

A control method for a rotatable drawing board includes the following steps:S1: preparing any one of the above rotatable drawing boards;S2: spinning a start switch, adjusting a rotating speed, and controlling the drive motor to run, wherein the drive motor drives the drawing board body to axially rotate;S3: enabling a stylus of a user to be in contact with or press the drawing board body to trigger the sensing switches;S4: transmitting, by the sensing switches, a signal to the control circuit board, and immediately controlling, by the control circuit board, the drive motor to stop running;S5: enabling the stylus of the user to leave the drawing board body, transmitting, by the sensing switches, a signal to the control circuit board, and controlling, by the control circuit board, the drive motor to restart to run or manually pressing, by the user, a running button to control the drive motor to rerun; andS6: repeating step S3 to step S5.

Preferably, the entire rotatable drawing board is of a round cake shape; the drive motor is located at an internal central portion of the main case; the sensing switches are pressure sensing switches; and the drawing board body deviates downwards after being pressed, and is in contact with the pressure sensing switches to trigger the pressure sensing switches.

Technical effects achieved by the present disclosure by solving the technical problems are as follows:

Compared with the prior art, the present disclosure provides a rotatable drawing board and a control method. A main case11and an axially rotatable drawing board body12arranged on a front surface of the main case11are simultaneously arranged; a control circuit board and a drive motor13for driving the drawing board body12to axially rotate are arranged inside the main case11; an output shaft of the drive motor13is connected to a central portion of the drawing board body12, or a supporting rod extending into the main case11is arranged at a central portion of a back surface of the drawing board body12; the output shaft of the drive motor13is rotatably movably connected to the supporting rod to drive the supporting rod and the drawing board body12to axially rotate; and the drive motor13is electrically connected to the control circuit board. In an actual application process, the drive motor13can be better used to drive the drawing board body12to self-rotate, which improves the use experience and improves the problem of inconvenient manual operations in the traditional technology. In addition, a rotating speed can be controlled to achieve different pattern displaying effects at different rotating speeds.

In the drawings: main case11; control button111; upper case112; lower case113; switch mounting slot114; spring limiting post115; limiting slot117; drawing board body12; drive motor13; press spring132; motor cover14; and sensing switch15.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure is further described below in detail with reference to accompanying drawings and embodiments. It should be understood that the specific embodiments described here are merely to explain the present disclosure, and not intended to limit the present disclosure.

Referring toFIG.1toFIG.4, a rotatable drawing board1of the present disclosure includes a main case11and an axially rotatable drawing board body12arranged on a front surface of the main case11. A control circuit board and a drive motor13for driving the drawing board body12to axially rotate are arranged inside the main case11. The main case11may be round or in other shapes, which will not be specifically restrained in the present disclosure.

An output shaft of the drive motor13is connected to a central portion of the drawing board body12, or a supporting rod extending into the main case11is arranged at a central portion of a back surface of the drawing board body12. The output shaft of the drive motor13is rotatably movably connected to the supporting rod to drive the supporting rod and the drawing board body12to axially rotate. The above rotatable movable connection may be gearing or the like, and transmission structures related thereto all fall within equivalent technical solutions. The drive motor13is electrically connected to the control circuit board.

According to the present disclosure, the main case11and the axially rotatable drawing board body12arranged on the front surface of the main case11are simultaneously arranged; the control circuit board and the drive motor13for driving the drawing board body12to axially rotate are arranged inside the main case11; the output shaft of the drive motor13is connected to the central portion of the drawing board body12, or the supporting rod extending into the main case11is arranged at the central portion of the back surface of the drawing board body12; the output shaft of the drive motor13is rotatably movably connected to the supporting rod to drive the supporting rod and the drawing board body12to axially rotate; and the drive motor13is electrically connected to the control circuit board. In an actual application process, the drive motor13can be better used to drive the drawing board body12to self-rotate, which improves the use experience and improves the problem of inconvenient manual operations in the traditional technology. In addition, a rotating speed can be controlled to achieve different pattern displaying effects at different rotating speeds.

A drawing surface of the drawing board body12of the present disclosure is smooth. An erasable stylus can be used to make a drawing which can be erased, so that the drawing board can be basically repeatedly used.

Another objective of the present disclosure is to provide a drawing board with a rotating function. The drawing board is rotated at a controllable rotating speed. Due to an automatic start and stop function, a visual delay is achieved, and dynamic patterns are generated. Different patterns are generated at different rotating speeds.

Sensing switches15can be uniformly distributed at respective quartiles of the device and located under the round drawing board, and control the preferred rotatable drawing board. When a stylus is in contact with the rotatable drawing board, the sensing switches15are stressed to cut off the power to stop the drawing board. When the stylus leaves the drawing board, the motor is electrified and drives the drawing board to rotate.

The drawing board body12of the present disclosure basically has a smooth surface and is basically round. The present disclosure will be better understood. Further, objects, features, and advantages will be clearer in the descriptions (in combination with the drawings) of the following preferred embodiments.

In some other embodiments, sensing switches15used for sensing a usage state or a stress state of the drawing board body12are further arranged at a portion between the main case11and the drawing board body12or on an inner side of the main case11.

Each sensing switch15is a pressure sensing switch or a distance sensing switch, for example, an infrared sensing switch and a sensor.

A press spring132used for playing an elastic restoration role is further arranged on the inner side of the main case11. The press spring132is located at a bottom of the drive motor13or is located at the other end portion of the drawing board body12opposite to the supporting rod.

A motor cover14used for accommodating and mounting the drive motor13is further arranged inside the main case11.

An outer side of the motor cover14is connected to the main case11. A shaft hole for arranging the output shaft in a penetrating manner is formed in an upper part of the motor cover14.

In an actual design, the motor cover14can be connected to the inner side of the main case11through a stud.

A spring limiting post115used for accommodating and arranging the press spring132is further integrally arranged on the inner side of the main case11.

The drive motor13is located at an upper part of the spring limiting post115, and a lower part of the drive motor13is in contact with a top of the press spring132.

A limiting slot117is formed in the spring limiting post115. A limiting post131corresponding to the limiting slot117is arranged at the lower part of the drive motor13. The limiting post131is embedded into the limiting slot117to limit up-and-down movement of the drive motor13.

Or, a motor limiting post matched with the spring limiting post115is arranged at the lower part of the drive motor13. The entire motor limiting post is movably clamped into the spring limiting post115or sleeves an outer side of the spring limiting post115to limit up-and-down movement of the drive motor13.

The design and setting of the above limiting structures are mainly to enable the drive motor13to move up and down stably, thereby avoiding deviation in angle from affecting a switch triggering effect.

The main case11includes a lower case113and an upper case112matched and abutted with an upper part of the lower case113. The drawing board body12is located on an inner side of the upper case112.

The upper case112is of a circular ring shape or a circular drawing board accommodating hole used for matching and accommodating the drawing board body12is formed in a portion corresponding to the drawing board body12.

The plurality of sensing switches15are arranged on an inner side of the lower case113in a surrounding manner, and switch mounting slots114used for mounting the sensing switches15are further formed in the upper part of the lower case113.

A control button111used for controlling the drive motor13to run is further arranged on an outer side of the main case11; or a wireless communication module is arranged inside the main case11to receive an external control signal to control the drive motor13to run; or the outer side of the main case is connected with a USB connector to supply power or transmit a signal.

A cross section of the upper case112is of an inverted L-shaped structure.

A diameter of the drawing board body12is slightly greater than a hole diameter of the drawing board accommodating hole of the upper case112, to avoid the drawing board body12from falling out from the drawing board accommodating hole.

The structure of the upper case112is used to limit the drawing board body12.

A control method for a rotatable drawing board includes the following steps:S1: preparing any one of the above rotatable drawing boards1;S2: spinning a start switch, adjusting a rotating speed, and controlling the drive motor13to run, wherein the drive motor13drives the drawing board body12to axially rotate;S3: enabling a stylus of a user to be in contact with or press the drawing board body12to trigger the sensing switches15;S4: transmitting, by the sensing switches15, a signal to the control circuit board, and immediately controlling, by the control circuit board, the drive motor13to stop running;S5: enabling the stylus of the user to leave the drawing board body12, transmitting, by the sensing switches15, a signal to the control circuit board, and controlling, by the control circuit board, the drive motor13to restart to run or manually pressing, by the user, a running button to control the drive motor13to rerun; andS6: repeating step S3 to step S5.

The entire rotatable drawing board1is of a round cake shape. The drive motor13is located at an internal central portion of the main case11. The sensing switches15are pressure sensing switches. The drawing board body12deviates downwards after being pressed, and is in contact with the pressure sensing switches to trigger the pressure sensing switches.

Technical effects achieved by the present disclosure by solving the technical problems are as follows:

Compared with the prior art, the present disclosure provides a rotatable drawing board1. A main case11and an axially rotatable drawing board body12arranged on a front surface of the main case11are simultaneously arranged; a control circuit board and a drive motor13for driving the drawing board body12to axially rotate are arranged inside the main case11; an output shaft of the drive motor13is connected to a central portion of the drawing board body12, or a supporting rod extending into the main case11is arranged at a central portion of a back surface of the drawing board body12; the output shaft of the drive motor13is rotatably movably connected to the supporting rod to drive the supporting rod and the drawing board body12to axially rotate; and the drive motor13is electrically connected to the control circuit board. In an actual application process, the drive motor13can be better used to drive the drawing board body12to self-rotate, which improves the use experience and improves the problem of inconvenient manual operations in the traditional technology. In addition, a rotating speed can be controlled to achieve different pattern displaying effects at different rotating speeds.

The above-mentioned implementations of the present disclosure do not constitute a limitation on the protection scope of the present disclosure. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure shall fall within the protection scope of the claims of the present disclosure.