Semi-automatic self-locking adjusting device based on compasses

Abstract

The semi-automatic self-locking adjusting device comprises a supporting structure assembly, a circuit control assembly and a mechanical adjusting assembly, a user inputs information to the circuit control assembly, and the circuit control assembly drives the mechanical adjusting assembly to complete adjusting work; the supporting structure comprises a triangular support structure. The circuit control assembly comprises a central control module, a button control module, a motor driving module and a display module; the mechanical adjusting assembly comprises a center rotating shaft, a radius adjusting module and a drawing module. The problems that an existing compass is difficult to operate and not accurate enough in drawing under the scenes that the radius of a drawn arc is too small, and a drawing surface cannot be fixed through a pin are solved, through structural innovation and addition of an adjusting device, the stability and accuracy of circle drawing are improved, operation is easier and more convenient, completeness and attractiveness of paper or a working face are guaranteed, and the practicability is high. And meanwhile, the compasses can be used for drawing in more scenes.

Description

Technical Field

[0001] The invention relates to the field of adjusting devices applied to compass drawing tools, in particular to a semi-automatic self-locking adjusting device applicable to a compass. Background Art

[0002] A compass is a tool used to draw circles and arcs. In mathematics and drawing, compasses are used to draw circles or chords, and are often used for ruler and compass drawing. Existing compasses usually include a positioning foot and a movable foot, and the two parts are connected by a rotating shaft. The drawing radius is adjusted by changing the angle between the positioning foot and the movable foot so that the distance between the pins at the end of the two parts and the pen tip is equal to the drawing radius. However, some problems have gradually been exposed during its use, such as the inability to lock the adjustment device when drawing circular figures, the need for reference objects to adjust the radius, the need for manual operation to stabilize the compass, and damage to paper.

[0003] In view of this, another method to solve the problem of automatically adjusting the radius and locking the compass has been developed, that is, adding a worm gear structure to the rotating shaft between the positioning foot and the movable foot, so that the opening angle of the movable foot can be automatically adjusted by the motor and self-locking can be achieved. For example, the invention patent with the Chinese publication number CN110254086A, entitled "A compass capable of automatically measuring angles", has the following main structure: a compass capable of automatically measuring angles, including a worm gear, a rotating shaft fixedly disposed on the upper end of the rotating block, a display disposed on the front end face of the rotating block, a slide groove disposed on the lower side of the display, a sliding rod slidably disposed in the slide groove, a limit groove disposed in communication with the upper end wall of the slide groove, a displacement sensor fixedly connected to the sliding rod slidably disposed in the limit groove, the displacement sensor can measure its movement displacement to control the display, a rotating groove is disposed on the right side of the slide groove in communication with the outside world, and a drawing rod is disposed in the rotating groove through a fixed shaft. This structure solves the problem of automatically adjusting the compass drawing radius and locking it, but there is still the problem of manual operation to stabilize the compass, and there are limitations when drawing a circle with a radius smaller than the gap between the positioning foot and the movable foot.

[0004] The present invention focuses on the above problems, changes the radius length adjustment method, and provides a bracket, which solves the problem that the traditional compass needs to be kept stable by hand during the drawing process and may be inconvenient to operate, ensures that the compass remains upright with the horizontal plane during the circle drawing process, and the brush rotates horizontally during drawing, and the distance from the paper remains unchanged, thereby improving the stability and accuracy of the compass; through the mechanical structure design of the compass radius adjustment device, the problem that the compass cannot be locked after reaching a certain length and is prone to errors is solved, so that after the radius of the compass is adjusted, the radius size is automatically locked and remains unchanged during the drawing process, thereby improving the accuracy of the compass drawing and reducing possible errors; a motor and a circuit control system are added to the compass, and the radius adjustment can be controlled by buttons, with automatic control instead of manual control, thereby solving the problem that the compass cannot directly obtain a radius of a certain length.

[0005] The present invention improves the safety, reliability and accuracy of drawing circles when users, especially those who have difficulty in operating traditional compasses, use compasses by changing the radius length adjustment method and adding a motor and circuit control system, ensures that the radius length does not change when the compass is used to reduce errors, and enables the compass to automatically change the drawing radius under key control. Summary of the invention

[0006] To solve the above problems, the present invention provides the following technical solutions: a semi-automatic self-locking adjustment device based on a compass, comprising a support structure component, a circuit control component, and a mechanical adjustment component. The user inputs information to the circuit control component, and the circuit control component drives the mechanical adjustment component to complete the adjustment work; the support structure component comprises a tripod connector and three supporting legs, the tripod connector in the connection structure is connected to the fixed seat in the mechanical adjustment component, the tripod connector is connected to the three supporting legs through a rotating shaft, and the three supporting legs can rotate around the rotating shaft and the maximum rotation amplitude is equal, which plays the role of stabilizing the device. The circuit control component comprises a multi-sensor data acquisition module, a multi-sensor fusion module, a central control module, a motor control module and a motor drive module, the sensor module acquires the user operation and sends a signal, the central control module processes the signal, and transmits the motor control signal to the motor drive module, the motor drive module is used to drive the motor, and converts the control signal of the central control module into the drive signal of the motor. The mechanical adjustment component includes a fixed seat, which is connected to the tripod connector in the supporting structure component. The central rotating rod driven by the motor is connected to the fixed seat through a bearing. The radius adjustment module is connected to the central rotating rod through a groove and rotates with the central rotating axis. The radius adjustment module includes a mechanical device driven by the motor. The pen tip fixing structure is connected to the mechanical device in the radius adjustment module, and the pen tip can be installed for drawing.

[0007] The mechanical adjustment component includes a fixed base on one side of which a No. 1 motor is fixedly installed. The output end of the No. 1 motor is meshed with a gear shaft through a driving gear. The gear shaft is installed on the lower surface of the bottom end of the fixed base through a bearing. A central rotating rod is fixedly installed on the bottom end of the gear shaft. Three tripod connectors are fixedly installed on the outside of the fixed base. The three tripod connectors are distributed in an equidistant circle through the center point of the fixed base, and support legs are rotatably installed in the three tripod connectors through a rotating shaft.

[0008] The central rotating rod in the mechanical adjustment component is connected to the fixed seat through a bearing, a No. 2 motor is installed inside the connecting rod and connected with a wire, and the wire connects the motor in the connecting rod with the circuit control component in the bracket structure through a wire slip ring in the connecting shaft, and the bottom of the connecting rod is fixedly connected to the outer bracket of the radius adjustment module.

[0009] The radius adjustment device in the mechanical adjustment assembly includes an external bracket, and the bracket structure is provided with a worm, gear, and rack parts fixing structure. The bottom end of the output shaft of the No. 2 motor in the central rotating rod is fixedly connected with a worm, one side of the worm is meshed with a double-layer gear, and the other gear of the double-layer gear is meshed with a secondary gear below, and the secondary gear is meshed with a rack below, and a pen core chuck is fixedly installed on the top of the rack.

[0010] The beneficial effects of the present invention are:

[0011] 1) By changing the radius length adjustment method and providing a bracket, the problem of inconvenience in operation when a traditional compass needs to be kept stable by hand during drawing is solved, ensuring that the compass remains upright with the horizontal plane during the circle drawing process, and the brush rotates horizontally during drawing, and the distance from the paper surface remains unchanged, thereby improving the stability and accuracy of the compass; at the same time, the positioning foot design of the traditional compass is abandoned, solving the problem that the paper is easily damaged during the drawing process and the problem of danger, so that the compass improves safety while also ensuring the integrity and beauty of the paper.

[0012] 2) The mechanical structure design of the compass radius adjustment device solves the problem that the compass cannot be locked after reaching a certain length, which is prone to errors. After the compass is adjusted, the radius size is automatically locked and remains unchanged during the drawing process, thereby improving the accuracy of compass drawing and reducing possible errors.

[0013] 3) By adding a motor and circuit control system to the radius adjustment device and replacing manual operation with automatic operation, the problem that the compass cannot directly obtain a radius of a certain length is solved. The control circuit determines the required radius size through the input signal, and outputs the corresponding control signal to the motor after calculation, so that the mechanical device adjusts the required radius to complete the radius selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structural diagram of the present invention;

[0015] Figure 2 is a partial side cross-sectional view of the mechanical adjustment assembly of the present invention;

[0016] Figure 3 is a top cross-sectional view of the mechanical adjustment assembly of the present invention;

[0017] Figure 4 is a logic control diagram of the circuit control unit of the present invention;

[0018] In the figure: 101 supporting foot, 102 tripod connecting piece, 201 central fixing structure, 202 central rotating rod, 203 bracket structure, 204 No. 1 motor, 205 No. 2 motor, 206 worm, 207 double-layer gear, 208 gear, 209 rack, 210 refill fixing device, 211 gear shaft. DETAILED DESCRIPTION

[0019] See also Figure 1-4 , an embodiment provided by the present invention: a semi-automatic self-locking adjustment device based on a compass, comprising a fixing seat 201, a No. 1 motor 204 is fixedly mounted on one side of the fixing seat 201, and an output end of the No. 1 motor 204 is meshedly connected with a gear shaft 211 through a driving gear, so that when the No. 1 motor 204 rotates, it drives the gear shaft 211 to rotate synchronously through the driving gear on the output shaft;

[0020] The gear shaft 211 is mounted on the lower surface of the bottom end of the fixed seat 201 through a bearing. The bottom end of the gear shaft 211 is fixedly mounted with a central rotating rod 202. When the gear shaft 211 rotates, it will synchronously drive the central rotating rod 202 at the bottom end to rotate. The outer bracket 203 is fixedly mounted on the outside of the bottom end of the central rotating rod 202. The rotation of the central rotating rod 202 can drive the outer bracket 203 and the structure thereon to rotate as a whole.

[0021] In order to automatically adjust the radius of the circle being drawn, a second motor 205 is fixedly installed inside the outer bracket 203, a worm 206 is fixedly connected to the bottom end of the output shaft of the second motor 205, a double-layer gear 207 is meshedly connected to one side of the worm 206, a secondary gear 208 is meshedly connected to the lower side of the other gear of the double-layer gear 207, a rack 209 is meshedly connected to the lower side of the secondary gear 208, a refill chuck 210 is fixedly installed to the top of the rack 209, the double-layer gear 207 and the secondary gear 208 are both rotatably installed inside the outer bracket 203 through a rotating shaft, and the rack 209 is slidably connected to the outer bracket 203;

[0022] According to the above structure, when the second motor 205 is rotating, it will drive the worm 206 to rotate synchronously through the output shaft, so that the worm 206 can drive the double-layer gear 207 on one side to rotate. When the double-layer gear 207 is rotating, the gear of the other layer can drive the secondary gear 208 to rotate synchronously. When the secondary gear 208 is rotating, the rack 209 below it will be extended and retracted due to the rotation of the secondary gear 208. The extension and retraction of the rack 209 can drive the pen core clamp 210 to move left and right, so that the distance between the main rotation center and the pen core clamp 210 can be adjusted, so as to achieve the purpose of freely adjusting the drawing radius.

[0023] In order to improve the automatic control drawing effect, a circuit control component is fixedly installed inside the fixing base 201.

[0024] In this embodiment, in order to perform triangular support work on the fixing base 201 and improve the stability of the drawing process, three tripod connectors 102 are fixedly installed on the outside of the fixing base 201. The three tripod connectors 102 are distributed in a circle with equal spacing through the center point of the fixing base 201. The three tripod connectors 102 are all installed with support legs 101 by rotation.

[0025] In actual use, the three supporting legs 101 can be rotated in the tripod connector 102, so that the three supporting legs 101 can be unfolded. The specific posture is shown in the attached manual. Figure 1 As shown, the compass of the present invention can be triangularly supported by three unfolded supporting legs 101, which is convenient to unfold and fold, and the unfolding amplitude is the same, ensuring that the compass rotates smoothly during the circle drawing process, thereby improving the stability and accuracy of the compass.

[0026] In this embodiment, in order to realize the automatic adjustment of radius and drawing function of the present invention, please refer to the attached manual for details. Figure 4 As shown, the circuit control component includes a multi-sensor data acquisition module, a multi-sensor fusion module, a central control module, a motor control module and a motor drive module;

[0027] The Bluetooth communication module is connected to the user's mobile phone via Bluetooth wireless, the central control module is electrically connected to the Bluetooth communication module, the output module and the motor drive module, and the motor drive module is electrically connected to the first motor 204 and the second motor 205 via a wire;

[0028] The circuit control component includes a multi-sensor data acquisition module, a multi-sensor fusion module, a central control module, a motor control module and a motor drive module. The sensor module acquires user operations and sends signals, the central control module processes the signals, and transmits the motor control signals to the motor drive module. The motor drive module is used to drive the motor and convert the control signals of the central control module into drive signals of the motor.

[0029] When the above structure is in use, the control signal of the device button can be received by the multi-sensor acquisition module, and the multi-sensor fusion module integrates the control signal and transmits the signal to the central control module. The central control module can process the signal and determine the radius adjustment value and other information. Then, the motor drive module can be driven by the central control module to work, thereby completing automatic rotation mapping through the motor.

[0030] At the same time, the signal processed by the central control module can be displayed on the display screen, thereby having the effect of information feedback. The present invention, through the above-mentioned control structure design, enables the present invention to have an automatic drawing effect controlled by buttons, and improves the simplicity of drawing by automatically replacing manual.

[0031] Working principle:

[0032] Please refer to the instruction manual for details Figure 1-3 As shown, the mechanical principle of the device of the present invention is described below:

[0033] When automatic drawing is required, the radius adjustment device is in the initial state, the pen core clamp 210 can clamp the pen core used for drawing, and the user positions the pen core at the center of the drawing circle, and at the same time unfolds the three support legs 101 to stably support the compass through the support legs 101;

[0034] Afterwards, the radius of the drawn circle is adjusted, and the second motor 205 can work. When the second motor 205 is working, it will drive the worm 206 to rotate synchronously through the output shaft, so that the rotation of the worm 206 can drive the double-layer gear 207 on one side to rotate. When the double-layer gear 207 is rotating, the gear of the other layer can drive the secondary gear 208 to rotate synchronously. When the secondary gear 208 is rotating, the rack 209 below it will be extended and retracted due to the rotation of the secondary gear 208. The extension of the rack 209 can drive the pen core clamp 210 to move left and right, so that the distance between the main rotation center and the pen core clamp 210 can be adjusted, so as to achieve the purpose of adjusting the drawing radius;

[0035] At this time, the drawing work can be performed by the set No. 1 motor 204. When the No. 1 motor 204 is working, it will drive the driving gear to rotate through the output shaft, so as to drive the gear shaft 211 to rotate synchronously through the driving gear. When the gear shaft 211 is rotating, it will synchronously drive the central rotating rod 202 at the bottom to rotate. The rotation of the central rotating rod 202 can drive the outer bracket 203 and the structural assembly thereon to rotate as a whole. At this time, the refill of the refill chuck 210 rotates synchronously. During the rotation of the refill, it will draw a circle of a certain radius on the paper, so as to achieve the use effect of the device of the present invention controlling the compass to automatically draw pictures;

[0036] The present invention can freely adjust the radius of the circle for drawing, and is easy to use. At the same time, when the secondary motor 205 is stationary, it has the effect of self-locking the radius, which solves the problem that the compass cannot be locked after reaching a certain length, which is easy to cause errors. After the radius of the compass is adjusted, the radius size is automatically locked and remains unchanged during the drawing process, thereby improving the accuracy of compass drawing and reducing possible errors.

[0037] Please refer to the instruction manual for details Figure 4 As shown, the automatic control of the device of the present invention is described below:

[0038] The present invention can receive the control signal of the device button through the multi-sensor acquisition module, and after the multi-sensor fusion module integrates the control signal, transmits the signal to the central control module, and the central control module can process the signal, and then drive the motor drive module to work through the central control module, so as to complete the use characteristics of adjusting the drawing radius or automatically rotating the drawing (the first motor 204 rotates, the compass automatically rotates the drawing, and the secondary motor 205 rotates to adjust the radius size of the drawing);

[0039] At the same time, the signal processed by the central control module can be displayed on the display screen, thereby having the effect of information feedback. The present invention, through the above-mentioned control structure design, enables the present invention to have an automatic drawing effect controlled by buttons, and improves the simplicity of drawing by automatically replacing manual.

[0040] In summary, the present invention solves the problem that the traditional compass may be inconvenient to operate when it needs to be kept stable by hand during the drawing process by changing the radius length adjustment method and providing a bracket, ensuring that the compass remains upright with the horizontal plane during the circle drawing process, and the brush rotates horizontally during drawing, and the distance from the paper surface remains unchanged, thereby improving the stability and accuracy of the compass; at the same time, the positioning foot design of the traditional compass is abandoned, solving the problem that the paper is easily damaged during the drawing process and the problem of danger, so that the compass improves safety while also ensuring the integrity and beauty of the paper.

[0041] The mechanical structure design of the compass radius adjustment device solves the problem that the compass cannot be locked after reaching a certain length, which is prone to errors. After the compass is adjusted, the radius size is automatically locked and remains unchanged during the drawing process, thereby improving the accuracy of compass drawing and reducing possible errors.

[0042] By adding a motor and circuit control system to the radius adjustment device and replacing manual control with automatic control, the problem that the compass cannot directly obtain a radius of a certain length is solved. The control circuit determines the required radius size through input signals, and outputs a corresponding control signal to the motor after calculation, so that the mechanical device adjusts the required radius to complete the radius selection.

Claims

1. A semi-automatic self-locking adjustment device based on a compass, characterized in that: It includes a supporting structure component, a circuit control component, and a mechanical adjustment component. The user inputs information to the circuit control component, and the circuit control component drives the mechanical adjustment component to complete the adjustment work; The supporting structure assembly includes a tripod connector and three supporting legs. The tripod connector in the connecting structure is connected to a fixed seat in the mechanical adjustment assembly. The tripod connector and the three supporting legs are connected via a rotating shaft. The three supporting legs can rotate around the rotating shaft and the maximum rotation range is equal. The circuit control component includes a multi-sensor data acquisition module, a multi-sensor fusion module, a central control module, a motor control module and a motor drive module. The sensor module acquires user operations and sends signals, the central control module processes the signals, and transmits the motor control signals to the motor drive module. The motor drive module is used to drive the motor and convert the control signals of the central control module into drive signals of the motor. The mechanical adjustment component includes a fixed seat, which is connected to the tripod connector in the supporting structure component. The central rotating rod driven by the motor is connected to the fixed seat through a bearing. The radius adjustment module is connected to the central rotating rod through a groove and rotates with the central rotating axis. The radius adjustment module includes a mechanical device driven by the motor. The pen tip fixing structure is connected to the mechanical device in the radius adjustment module, and the pen tip can be installed for drawing.

2. The compass-based semi-automatic self-locking adjustment device according to claim 1, characterized in that: The mechanical adjustment component includes a fixed base with a No. 1 motor fixedly installed on one side thereof, the output end of the No. 1 motor is meshedly connected with a gear shaft through a driving gear, the gear shaft is installed on the lower surface of the bottom end of the fixed base through a bearing, a central rotating rod is fixedly installed on the bottom end of the gear shaft, and three tripod connectors are fixedly installed on the outside of the fixed base, the three tripod connectors are distributed in an equidistant circle through the center point of the fixed base, and support legs are rotatably installed in the three tripod connectors through a rotating shaft.

3. The compass-based semi-automatic self-locking adjustment device according to claim 1, characterized in that: The central rotating rod in the mechanical adjustment component is connected to the fixed seat through a bearing, a No. 2 motor is installed inside the connecting rod and connected with a wire, and the wire connects the motor in the connecting rod with the circuit control component in the bracket structure through a wire slip ring in the connecting shaft, and the bottom of the connecting rod is fixedly connected to the outer bracket of the radius adjustment module.

4. The compass-based semi-automatic self-locking adjustment device according to claim 1 or 3, characterized in that: The radius adjustment device in the mechanical adjustment assembly includes an external bracket, and the bracket structure is provided with a worm, gear, and rack parts fixing structure. The bottom end of the output shaft of the No. 2 motor in the central rotating rod is fixedly connected with a worm, one side of the worm is meshed with a double-layer gear, and the other gear of the double-layer gear is meshed with a secondary gear below, and the secondary gear is meshed with a rack below, and a pen core chuck is fixedly installed on the top of the rack.

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