Small intelligent electric vacuum chuck

Abstract

The invention provides a small intelligent electric vacuum sucker which comprises an electric vacuum sucker body, a sucker body and a four-way air channel cavity, a vacuum pump, an air inlet valve and a main control circuit board are arranged in the electric vacuum sucker body, and the vacuum pump is communicated with a vacuum chamber of the sucker body through the four-way air channel cavity. A power supply, a power supply voltage adjusting circuit, a vacuum pump driving circuit, a suction cup air pressure detection circuit, an air inlet valve driving circuit and a battery electric quantity detection circuit are arranged in the main control circuit board, and the power supply voltage adjusting circuit is in power supply connection with the electric vacuum suction cup main control circuit; the electric vacuum chuck main control circuit is in control connection with the power management circuit, the vacuum pump driving circuit, the air inlet valve driving circuit and the air pressure display indicating lamp group, and the chuck air pressure detection circuit and the battery electric quantity detection circuit are in feedback connection with the electric vacuum chuck main control circuit. The suction cup has the beneficial effects that the air pressure of the vacuum chamber in the suction cup can be monitored in real time and dynamically adjusted, and the use safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sucker circuits, and particularly relates to a small intelligent electric vacuum sucker. Background Art

[0002] A vacuum sucker is an adsorption tool that generates suction using the negative pressure principle. The working principle of a vacuum sucker is based on the concept of atmospheric pressure. When the air inside the sucker is pumped out, the external atmospheric pressure will press the sucker tightly against the surface of the object. This process is similar to a small air pump. When the sucker comes into contact with and seals the object surface, the external atmospheric pressure exerts a downward force through the edge of the sucker, and this force is what we call the adsorption force.

[0003] Due to its simple and efficient characteristics, vacuum suckers have been widely used in many fields. In industrial production, vacuum suckers are often used to handle and fix various workpieces, such as glass, metal plates, etc. In industries such as automobile manufacturing and electronic assembly, vacuum suckers can improve production efficiency and reduce manual operations. In home life, vacuum suckers also have a wide range of applications. For example, they can be used to fix hooks, lamps, photo frames, etc., which are convenient and practical. In the medical field, vacuum suckers are used to assist in the positioning and fixation of surgical instruments to improve surgical precision. In addition, vacuum suckers are also applied to many industries such as advertising display and logistics transportation, demonstrating their wide applicability and flexibility.

[0004] In the live broadcast field, due to the very rapid development of the live broadcast industry and the short video industry, there are many special shooting scenarios. For example, inside a car, or in other relatively narrow enclosed spaces, or near some smooth planes, or in some relatively special shaking environments. At this time, it is necessary to fix shooting equipment such as mobile phones, cameras, or video cameras, and it is necessary to quickly recover the shooting equipment after shooting. Common fixing means include paste wall-mounted devices and small vacuum suckers, etc. The paste wall-mounted device is simple to install and use, and can fix the shooting equipment firmly and stably. However, the paste wall-mounted device itself is very troublesome to disassemble, and some are even impossible to disassemble, and the cost is relatively high. It is suitable for fixing shooting equipment at positions where shooting is required for a long time. Relatively speaking, small vacuum suckers are not only convenient to install and use, but also very simple to disassemble themselves, and the cost is relatively low. They are suitable for fixing shooting equipment on flat surfaces where shooting is required for a short time. However, the existing small vacuum suckers have a very simple structure and do not have a function of air pressure monitoring and adjustment. During use, due to external shaking, the small vacuum sucker is prone to looseness or air leakage, resulting in its detachment from the adsorbed fixed surface, and then the shooting equipment falls, and even breaks, bringing a very bad user experience to people. Summary of the Invention

[0005] To solve the problems in the prior art, the present invention provides a small intelligent electric vacuum suction cup. By arranging a power supply, a power management circuit, a power voltage adjustment circuit, a main control circuit of the electric vacuum suction cup, a vacuum pump drive circuit, a suction cup air pressure detection circuit, an intake valve drive circuit, a battery power detection circuit, and a set of air pressure display indicator lights that cooperate with each other in the small intelligent electric vacuum suction cup, it can realize real-time monitoring and dynamic adjustment of the air pressure in the vacuum chamber of the suction cup. It can be convenient to install and use, while ensuring that there will be no loosening or air leakage, greatly improving the use safety of the small vacuum suction cup. At the same time, when it is necessary to disassemble the small vacuum suction cup, the air pressure in the vacuum chamber of the suction cup can be quickly adjusted for easy disassembly, improving the user experience, and solving the problems in the prior art that the disassembly of the wall-mounted device is troublesome and costly, and the small vacuum suction cup is prone to looseness, resulting in poor use experience.

[0006] A small intelligent electric vacuum suction cup provided by the present invention comprises an electric vacuum suction cup main body and a suction cup which are fixedly connected. A four-way air passage chamber is arranged between the electric vacuum suction cup main body and the suction cup. A first air passage of the four-way air passage chamber is communicated with a vacuum chamber of the suction cup. A vacuum pump, an intake valve and a main control circuit board are arranged in the electric vacuum suction cup main body. The main control circuit board is connected to the vacuum pump and the intake valve for control. The vacuum pump is communicated with the vacuum chamber of the suction cup through a second air passage in the four-way air passage chamber. A check valve is further arranged in the second air passage between the vacuum pump and the four-way air passage chamber. The intake valve is arranged in a third air passage of the four-way air passage. The external atmospheric environment can be communicated with the vacuum chamber of the suction cup through the third air passage where the intake valve is located. The main control circuit board is internally provided with a power supply, a power management circuit, a power voltage adjustment circuit, a main control circuit of the electric vacuum suction cup, a vacuum pump drive circuit, a suction cup air pressure detection circuit, an intake valve drive circuit, a battery power detection circuit and a group of air pressure display indicator lights. The output end of the power supply is connected to the power voltage adjustment circuit, the vacuum pump drive circuit, the suction cup air pressure detection circuit, the intake valve drive circuit and the battery power detection circuit for power supply. The input end of the power management circuit can be connected to a wide voltage power supply of 5V - 12V. The output end of the power management circuit can be connected to the power supply for charging. The output end of the power voltage adjustment circuit is connected to the main control circuit of the electric vacuum suction cup for power supply. The output end of the main control circuit of the electric vacuum suction cup is connected to the power management circuit, the input ends of the vacuum pump drive circuit and the intake valve drive circuit, and the group of air pressure display indicator lights for control. The suction cup air pressure detection circuit is internally provided with a pressure sensor and is located in a fourth air passage of the four-way air passage chamber. The output ends of the suction cup air pressure detection circuit and the battery power detection circuit are connected to the input end of the main control circuit of the electric vacuum suction cup for feedback connection. A control button is further connected to the input end of the main control circuit of the electric vacuum suction cup. The main control circuit of the electric vacuum suction cup can automatically control the vacuum pump drive circuit to drive the vacuum pump to adjust the air pressure in the vacuum chamber of the small intelligent electric vacuum suction cup according to the information input by the control button and the information feedback by the suction cup air pressure detection circuit.

[0007] The present invention is further improved. The main control circuit of the electric vacuum suction cup is provided with a main control chip U9, a capacitor C29 and a capacitor C30. Among them, the main control chip U9 has 20 pins. The 6th pin of the main control chip U9 is connected to one end of the capacitor C29, one end of the capacitor C30 and the output end of the power supply voltage adjustment circuit. The 7th and 9th pins of the main control chip U9 are connected to the power management circuit for control. The 20th pin of the main control chip U9 is connected to the input end of the vacuum pump drive circuit for control. The 19th pin of the main control chip U9 is connected to the input end of the intake valve drive circuit for control. The 11th, 12th, 13th and 14th pins of the main control chip U9 are connected to the air pressure display indicator group for control. The 2nd pin of the main control chip U9 is connected to the output end of the suction cup air pressure detection circuit. The 3rd pin of the main control chip U9 is connected to the output end of the battery power detection circuit. The other end of the capacitor C29 and the other end of the capacitor C30 are grounded.

[0008] The present invention is further improved. The suction cup air pressure detection circuit is provided with a pressure sensor chip S3, a resistor R43, a resistor R38, an operational amplifier U7A, a resistor R47, a resistor R53, an operational amplifier U7B, a resistor R54 and a capacitor C22. Among them, the pressure sensor chip S3 has 6 pins. The 3rd pin of the pressure sensor chip S3 is connected to the output end of the power supply. The 5th pin of the pressure sensor chip S3 is connected to one end of the resistor R43. The other end of the resistor R43 is connected to the inverting input end of the operational amplifier U7A. The 2nd pin of the pressure sensor chip S3 is connected to one end of the resistor R38. The other end of the resistor R38 is connected to the non-inverting input end of the operational amplifier U7A. The output end of the operational amplifier U7A is connected to one end of the resistor R47. The other end of the resistor R47 is connected to the non-inverting input end of the operational amplifier U7B. The inverting input end of the operational amplifier U7B is connected to one end of the resistor R53. The output end of the operational amplifier U7B is connected to the other end of the resistor R53 and one end of the resistor R54. The other end of the resistor R54 is connected to one end of the capacitor C22 and the 2nd pin of the main control chip U9. The other end of the capacitor C22 is grounded.

[0009] The present invention is further improved. The vacuum pump drive circuit is provided with a vacuum pump interface CN4, a diode D6, a field effect transistor Q8, and a resistor R65. Among them, the output end of the vacuum pump interface CN4 can be connected to the power supply of the vacuum pump. The input end of the vacuum pump interface CN4 has 2 pins. The first pin of the vacuum pump interface CN4 is connected to the output end of the power supply and the negative electrode of the diode D6. The second pin of the vacuum pump interface CN4 is connected to the positive electrode of the diode D6 and the drain of the field effect transistor Q8. The gate of the field effect transistor Q8 is connected to one end of the resistor R65. The other end of the resistor R65 is connected to the 20th pin of the main control chip U9. The source of the field effect transistor Q8 is grounded.

[0010] The present invention is further improved. The intake valve drive circuit is provided with an intake valve interface CN5, a diode D7, a field effect transistor Q9, and a resistor R66. Among them, the intake valve interface CN5 is used to externally connect an intake valve. The intake valve interface CN5 has 2 pins. The first pin of the intake valve interface CN5 is connected to the output end of the power supply and the negative electrode of the diode D7. The second pin of the intake valve interface CN5 is connected to the positive electrode of the diode D7 and the drain of the field effect transistor Q9. The gate of the field effect transistor Q9 is connected to one end of the resistor R66. The other end of the resistor R66 is connected to the 19th pin of the main control chip U9. The source of the field effect transistor Q9 is grounded.

[0011] The present invention is further improved. The battery power detection circuit is provided with a resistor R70, a resistor R71, and a capacitor C28. Among them, one end of the resistor R70 is connected to the output end of the power supply. The other end of the resistor R70 is connected to one end of the resistor R71, one end of the capacitor C28, and the 3rd pin of the main control chip U9. The other end of the resistor R71 and the other end of the capacitor C28 are grounded.

[0012] The present invention is further improved. The power supply voltage adjustment circuit is provided with a voltage adjustment chip U8, a capacitor C23, and a capacitor C26. Among them, the voltage adjustment chip U8 has 5 pins. The first pin of the voltage adjustment chip U8 is connected to the output end of the power supply and one end of the capacitor C23. The fifth pin of the voltage adjustment chip U8 is connected to one end of the capacitor C26 and the 6th pin of the main control chip U9. The other end of the capacitor C23 and the other end of the capacitor C26 are grounded.

[0013] The present invention is further improved. The power management circuit is provided with a power management chip U5, an inductor L1, a resistor R22, a field effect transistor Q7, a field effect transistor Q5, a resistor R17, a resistor R16, a field effect transistor Q4, and a charging interface TYPE_C1. Among them, the power management chip U5 has 24 pins. The 22nd pin of the power management chip U5 is connected to the 23rd pin of the power management chip U5, the 24th pin of the power management chip U5, and the drain of the field effect transistor Q4. The source of the field effect transistor Q4 is connected to the output end of the charging interface TYPE_C1. The input end of the charging interface TYPE_C1 can be connected to a wide voltage power supply of 5V - 12V. The 1st pin of the power management chip U5 is connected to one end of the resistor R17. The other end of the resistor R17 is connected to the drain of the field effect transistor Q5. The gate of the field effect transistor Q5 is connected to one end of the resistor R16. The other end of the resistor R16 is connected to the 7th pin of the main control chip U9. The 8th pin of the power management chip U5 is connected to one end of the resistor R22. The other end of the resistor R22 is connected to the gate of the field effect transistor Q7. The drain of the field effect transistor Q7 is connected to the 9th pin of the main control chip U9. The 15th pin of the power management chip U5 is connected to the 16th pin of the power management chip U5 and one end of the inductor L1. The other end of the inductor L1 can be connected to the power supply for charging. The source of the field effect transistor Q5 and the source of the field effect transistor Q7 are grounded.

[0014] The present invention is further improved. The model of the main control chip U9 is N32G003, and the model of the air pressure sensor chip S3 is YSP201 - 100.

[0015] The present invention is further improved. The model of the power management chip U5 is IP2365, and the power supply is a rechargeable lithium-ion battery.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: A small intelligent electric vacuum suction cup is provided. By arranging a power supply, a power management circuit, a power voltage adjustment circuit, a main control circuit of the electric vacuum suction cup, a vacuum pump drive circuit, a suction cup air pressure detection circuit, an intake valve drive circuit, a battery power detection circuit and a set of air pressure display indicator lights that cooperate with each other in the small intelligent electric vacuum suction cup, the main control circuit of the electric vacuum suction cup can automatically control the vacuum pump drive circuit to drive the vacuum pump to adjust the air pressure in the vacuum chamber of the small intelligent electric vacuum suction cup according to the information input by the control button and the information fed back by the suction cup air pressure detection circuit. It can realize real-time monitoring of the air pressure in the vacuum chamber of the suction cup and dynamic adjustment. While being convenient for installation and use, it can ensure that there will be no loosening or air leakage, greatly improving the use safety of the small vacuum suction cup. At the same time, when it is necessary to disassemble the small vacuum suction cup, the air pressure in the vacuum chamber of the suction cup can be quickly adjusted for easy disassembly, improving the user experience. It solves the problems in the prior art that the disassembly of the pasted wall-mounted device is troublesome and costly, and the small vacuum suction cup is prone to looseness, resulting in poor use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic block diagram of the control circuit of a small intelligent electric vacuum suction cup of the present invention;

[0019] Figure 2 It is the circuit diagram of the main control circuit of the electric vacuum suction cup of the present invention;

[0020] Figure 3 It is the circuit diagram of the suction cup air pressure detection circuit of the present invention;

[0021] Figure 4 It is the circuit diagram of the vacuum pump drive circuit of the present invention;

[0022] Figure 5 It is the circuit diagram of the intake valve drive circuit of the present invention;

[0023] Figure 6 It is the circuit diagram of the battery power detection circuit of the present invention;

[0024] Figure 7 It is the circuit diagram of the power voltage adjustment circuit of the present invention;

[0025] Figure 8 It is the circuit diagram of the power management circuit of the present invention. Detailed implementation manners

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "comprising" and "having" and any variations thereof in the specification and claims of this invention and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this invention or the above drawings are used to distinguish different objects and not to describe a specific order.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0028] To enable those skilled in the art of this technology to better understand the solution of this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below in conjunction with the drawings.

[0029] As Figures 1 - 8As shown in the figure, a small intelligent electric vacuum suction cup provided by the present invention includes an electric vacuum suction cup main body and a suction cup that are fixedly connected. A four-way air passage chamber is provided between the electric vacuum suction cup main body and the suction cup. The first air passage of the four-way air passage chamber is communicated with the vacuum chamber of the suction cup. A vacuum pump, an intake valve, and a main control circuit board are provided in the electric vacuum suction cup main body. The main control circuit board is connected to the vacuum pump and the intake valve for control. The vacuum pump is communicated with the vacuum chamber of the suction cup through the second air passage in the four-way air passage chamber. A check valve is also provided in the second air passage between the vacuum pump and the four-way air passage chamber. The intake valve is arranged in the third air passage of the four-way air passage. The external atmospheric environment can be communicated with the vacuum chamber of the suction cup through the third air passage where the intake valve is located. The main control circuit board is provided with a power supply, a power management circuit, a power voltage adjustment circuit, a main control circuit for the electric vacuum suction cup, a vacuum pump drive circuit, a suction cup air pressure detection circuit, an intake valve drive circuit, a battery power detection circuit, and a group of air pressure display indicator lights. The output end of the power supply is connected to the power voltage adjustment circuit, the vacuum pump drive circuit, the suction cup air pressure detection circuit, the intake valve drive circuit, and the battery power detection circuit for power supply. The input end of the power management circuit can be connected to a wide-voltage power supply of 5V - 12V. The output end of the power management circuit can be connected to the power supply for charging. The output end of the power voltage adjustment circuit is connected to the main control circuit for the electric vacuum suction cup for power supply. The output end of the main control circuit for the electric vacuum suction cup is connected to the power management circuit, the input ends of the vacuum pump drive circuit, the intake valve drive circuit, and the group of air pressure display indicator lights for control. The suction cup air pressure detection circuit is provided with a pressure sensor and is located in the fourth air passage of the four-way air passage chamber. The output end of the suction cup air pressure detection circuit and the output end of the battery power detection circuit are connected to the input end of the main control circuit for the electric vacuum suction cup for feedback. A control button is also connected to the input end of the main control circuit for the electric vacuum suction cup. In this embodiment, the main control circuit for the electric vacuum suction cup can automatically control the vacuum pump drive circuit to drive the vacuum pump to adjust the air pressure in the vacuum chamber of the small intelligent electric vacuum suction cup according to the information input by the control button and the information feedback by the suction cup air pressure detection circuit. When the air pressure in the vacuum chamber of the suction cup is lower than the set air pressure, the vacuum pump is started. When the set air pressure is reached, the vacuum pump is turned off. The check valve can automatically prevent air from entering the vacuum chamber. When it is necessary to release the pressure in the vacuum chamber of the suction cup, the intake valve is started to release the pressure in the vacuum chamber of the suction cup.That is to say, when using a small intelligent electric vacuum suction cup to mount photographic equipment, the main control circuit of the electric vacuum suction cup can control the vacuum pump drive circuit to drive the vacuum pump according to the information input by the control button, evacuate the air in the vacuum chamber of the small intelligent electric vacuum suction cup through the second air path, so that the small intelligent electric vacuum suction cup adsorbs on a smooth plane, and then fixes the photographic equipment; during the shooting process, the main control circuit of the electric vacuum suction cup can automatically control the vacuum pump drive circuit to drive the vacuum pump to adjust the air pressure in the vacuum chamber of the small intelligent electric vacuum suction cup according to the information fed back by the suction cup air pressure detection circuit, that is, according to the air pressure signal of the vacuum chamber in the small intelligent electric vacuum suction cup fed back by the air pressure sensor in the fourth air path, automatically adjust it to the initially preset air pressure to ensure that the small intelligent electric vacuum suction cup stably adsorbs on the smooth plane, can realize real-time monitoring of the air pressure in the vacuum chamber of the suction cup and dynamic adjustment; it can be convenient to install and use, while ensuring that there will be no loosening or air leakage, greatly improving the use safety of the small vacuum suction cup. At the same time, when it is necessary to disassemble the small vacuum suction cup, the main control circuit of the electric vacuum suction cup can control the intake valve drive circuit to adjust the air pressure in the vacuum chamber of the suction cup, that is, open the intake valve to allow the outside atmosphere to enter the vacuum chamber of the suction cup through the third air path for easy disassembly, improving the user experience.

[0030] As Figure 2 shown, the main control circuit of the electric vacuum suction cup is provided with a main control chip U9, a capacitor C29 and a capacitor C30. Among them, the model of the main control chip U9 is N32G003. The main control chip U9 has 20 pins. The 6th pin of the main control chip U9 is connected to one end of the capacitor C29, one end of the capacitor C30 and the output end of the power supply voltage adjustment circuit. The 7th and 9th pins of the main control chip U9 are connected to the power management circuit for control. The 20th pin of the main control chip U9 is connected to the input end of the vacuum pump drive circuit for control. The 19th pin of the main control chip U9 is connected to the input end of the intake valve drive circuit for control. The 11th, 12th, 13th and 14th pins of the main control chip U9 are connected to the air pressure display indicator group for control. The 2nd pin of the main control chip U9 is connected to the output end of the suction cup air pressure detection circuit. The 3rd pin of the main control chip U9 is connected to the output end of the battery power detection circuit. The other ends of the capacitor C29 and the capacitor C30 are grounded. In this embodiment, the main control circuit of the electric vacuum suction cup is used to control the operation of the entire small vacuum suction cup, and is used to automatically control the vacuum pump drive circuit to drive the vacuum pump to adjust the air pressure in the vacuum chamber of the small intelligent electric vacuum suction cup according to the information input by the control button and the information fed back by the suction cup air pressure detection circuit.

[0031] As Figure 3As shown, the suction cup air pressure detection circuit is provided with a pressure sensor chip S3, a resistor R43, a resistor R38, an operational amplifier U7A, a resistor R47, a resistor R53, an operational amplifier U7B, a resistor R54, and a capacitor C22. Among them, the model of the pressure sensor chip S3 is YSP201-100. The pressure sensor chip S3 has 6 pins. The 3rd pin of the pressure sensor chip S3 is connected to the output terminal of the power supply. The 5th pin of the pressure sensor chip S3 is connected to one end of the resistor R43. The other end of the resistor R43 is connected to the inverting input terminal of the operational amplifier U7A. The 2nd pin of the pressure sensor chip S3 is connected to one end of the resistor R38. The other end of the resistor R38 is connected to the non-inverting input terminal of the operational amplifier U7A. The output terminal of the operational amplifier U7A is connected to one end of the resistor R47. The other end of the resistor R47 is connected to the non-inverting input terminal of the operational amplifier U7B. The inverting input terminal of the operational amplifier U7B is connected to one end of the resistor R53. The output terminal of the operational amplifier U7B is connected to the other end of the resistor R53 and one end of the resistor R54. The other end of the resistor R54 is connected to one end of the capacitor C22 and the 2nd pin of the main control chip U9. The other end of the capacitor C22 is grounded. In this embodiment, the pressure sensor chip S3 is located inside the suction cup of the small intelligent electric vacuum suction cup. The suction cup air pressure detection circuit is used to monitor the air pressure inside the suction cup of the small intelligent electric vacuum suction cup in real time and feedback the air pressure information inside the suction cup of the small intelligent electric vacuum suction cup to the main control circuit of the electric vacuum suction cup for automatic adjustment. At the same time, the main control circuit of the electric vacuum suction cup will also display the air pressure information on the air pressure display indicator group.

[0032] As Figure 4 shown, the vacuum pump drive circuit is provided with a vacuum pump interface CN4, a diode D6, a field effect transistor Q8, and a resistor R65. Among them, the output terminal of the vacuum pump interface CN4 can be connected to the vacuum pump power supply. The input terminal of the vacuum pump interface CN4 has 2 pins. The 1st pin of the vacuum pump interface CN4 is connected to the output terminal of the power supply and the negative electrode of the diode D6. The 2nd pin of the vacuum pump interface CN4 is connected to the positive electrode of the diode D6 and the drain of the field effect transistor Q8. The gate of the field effect transistor Q8 is connected to one end of the resistor R65. The other end of the resistor R65 is connected to the 20th pin of the main control chip U9. The source of the field effect transistor Q8 is grounded. In this embodiment, the vacuum pump drive circuit is used to drive the vacuum pump to pump out the air inside the suction cup of the small intelligent electric vacuum suction cup according to the control instruction of the main control circuit of the electric vacuum suction cup.

[0033] As Figure 5As shown in the figure, the intake valve drive circuit is provided with an intake valve interface CN5, a diode D7, a field effect transistor Q9, and a resistor R66. Among them, the intake valve interface CN5 is used to externally connect an intake valve. The intake valve interface CN5 has 2 pins. The first pin of the intake valve interface CN5 is connected to the output terminal of the power supply and the negative electrode of the diode D7. The second pin of the intake valve interface CN5 is connected to the positive electrode of the diode D7 and the drain of the field effect transistor Q9. The gate of the field effect transistor Q9 is connected to one end of the resistor R66, and the other end of the resistor R66 is connected to the 19th pin of the main control chip U9. The source of the field effect transistor Q9 is grounded. In this embodiment, the intake valve drive circuit is used to drive the intake valve switch according to the control instruction of the main control circuit of the electric vacuum chuck, and put air into the chuck of the small intelligent electric vacuum chuck for easy disassembly.

[0034] As Figure 6 shown in the figure, the battery power detection circuit is provided with a resistor R70, a resistor R71, and a capacitor C28. Among them, one end of the resistor R70 is connected to the output terminal of the power supply, and the other end of the resistor R70 is connected to one end of the resistor R71, one end of the capacitor C28, and the 3rd pin of the main control chip U9. The other end of the resistor R71 and the other end of the capacitor C28 are grounded. In this embodiment, the battery power detection circuit is used to detect the remaining power information of the power supply and feedback it to the main control circuit of the electric vacuum chuck.

[0035] As Figure 7 shown in the figure, the power supply voltage adjustment circuit is provided with a voltage adjustment chip U8, a capacitor C23, and a capacitor C26. Among them, the voltage adjustment chip U8 has 5 pins. The first pin of the voltage adjustment chip U8 is connected to the output terminal of the power supply and one end of the capacitor C23. The fifth pin of the voltage adjustment chip U8 is connected to one end of the capacitor C26 and the 6th pin of the main control chip U9. The other end of the capacitor C23 and the other end of the capacitor C26 are grounded. In this embodiment, the power supply voltage adjustment circuit is used to adjust the voltage of the power supply to a stable 2.8V for the main control chip U9 to work.

[0036] As Figure 8As shown in the figure, the power management circuit is provided with a power management chip U5, an inductor L1, a resistor R22, a field effect transistor Q7, a field effect transistor Q5, a resistor R17, a resistor R16, a field effect transistor Q4, and a charging interface TYPE_C1. Among them, the model of the power management chip U5 is IP2365. The power management chip U5 has 24 pins. The 22nd pin of the power management chip U5 is connected to the 23rd pin of the power management chip U5, the 24th pin of the power management chip U5, and the drain of the field effect transistor Q4. The source of the field effect transistor Q4 is connected to the output end of the charging interface TYPE_C1. The input end of the charging interface TYPE_C1 can be connected to a wide voltage power supply of 5V - 12V. The 1st pin of the power management chip U5 is connected to one end of the resistor R17. The other end of the resistor R17 is connected to the drain of the field effect transistor Q5. The gate of the field effect transistor Q5 is connected to one end of the resistor R16. The other end of the resistor R16 is connected to the 7th pin of the main control chip U9. The 8th pin of the power management chip U5 is connected to one end of the resistor R22. The other end of the resistor R22 is connected to the gate of the field effect transistor Q7. The drain of the field effect transistor Q7 is connected to the 9th pin of the main control chip U9. The 15th pin of the power management chip U5 is connected to the 16th pin of the power management chip U5 and one end of the inductor L1. The other end of the inductor L1 can be connected to the power supply for charging. The source of the field effect transistor Q5 and the source of the field effect transistor Q7 are grounded. In this embodiment, the power management circuit is mainly used for charging the power supply, and is provided with an overvoltage protection function and a voltage adjustment function.

[0037] As can be seen from the above, the present invention provides a small intelligent electric vacuum suction cup. By setting a power supply, a power management circuit, a power supply voltage adjustment circuit, a main control circuit of the electric vacuum suction cup, a vacuum pump drive circuit, a suction cup air pressure detection circuit, an intake valve drive circuit, a battery power detection circuit, and a set of air pressure display indicator lights that cooperate with each other in the small intelligent electric vacuum suction cup, the main control circuit of the electric vacuum suction cup can automatically control the vacuum pump drive circuit to drive the vacuum pump to adjust the air pressure in the vacuum chamber of the small intelligent electric vacuum suction cup according to the information input by the control button and the information fed back by the suction cup air pressure detection circuit. It can realize real-time monitoring of the air pressure in the vacuum chamber of the suction cup and dynamic adjustment. It is convenient to install and use, and at the same time, it can ensure that there is no loosening or air leakage, greatly improving the use safety of the small vacuum suction cup. At the same time, when it is necessary to disassemble the small vacuum suction cup, it can quickly adjust the air pressure in the vacuum chamber of the suction cup for easy disassembly, improving the user experience, and solving the problems in the prior art that the disassembly of the wall-mounted device is troublesome and costly, and the small vacuum suction cup is easy to loosen, resulting in poor use experience.

[0038] The above-described specific embodiments are the preferred embodiments of the present invention, and do not limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to these specific embodiments. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A small intelligent electric vacuum suction cup, characterized in that: It includes a fixedly connected electric vacuum suction cup body and a suction cup. A four-way air passage chamber is provided between the electric vacuum suction cup body and the suction cup. The first air passage of the four-way air passage chamber is communicated with the vacuum chamber of the suction cup. A vacuum pump, an intake valve and a main control circuit board are provided in the electric vacuum suction cup body. The main control circuit board is controllably connected to the vacuum pump and the intake valve. The vacuum pump is communicated with the vacuum chamber of the suction cup through the second air passage in the four-way air passage chamber. A check valve is also provided in the second air passage between the vacuum pump and the four-way air passage chamber. The intake valve is arranged in the third air passage of the four-way air passage. The external atmospheric environment can be communicated with the vacuum chamber of the suction cup through the third air passage where the intake valve is located. The main control circuit board is provided with a power supply, a power management circuit, a power voltage adjustment circuit, a main control circuit for the electric vacuum suction cup, a vacuum pump drive circuit, a suction cup air pressure detection circuit, an intake valve drive circuit, a battery power detection circuit and a set of air pressure display indicator lights. The output end of the power supply is connected for power supply to the power voltage adjustment circuit, the vacuum pump drive circuit, the suction cup air pressure detection circuit, the intake valve drive circuit and the battery power detection circuit. The input end of the power management circuit can be connected to a wide-voltage power supply of 5V - 12V. The output end of the power management circuit can be connected for charging to the power supply. The output end of the power voltage adjustment circuit is connected for power supply to the main control circuit for the electric vacuum suction cup. The output end of the main control circuit for the electric vacuum suction cup is controllably connected to the power management circuit, the input ends of the vacuum pump drive circuit, the input ends of the intake valve drive circuit and the set of air pressure display indicator lights. The suction cup air pressure detection circuit is provided with a pressure sensor and is located in the fourth air passage of the four-way air passage chamber. The output end of the suction cup air pressure detection circuit and the output end of the battery power detection circuit are connected in feedback to the input end of the main control circuit for the electric vacuum suction cup. A control button is also connected to the input end of the main control circuit for the electric vacuum suction cup. The main control circuit for the electric vacuum suction cup can automatically control the vacuum pump drive circuit to drive the vacuum pump to adjust the air pressure in the vacuum chamber of the small intelligent electric vacuum suction cup according to the information input by the control button and the information feedback by the suction cup air pressure detection circuit.

2. The small intelligent electric vacuum suction cup according to claim 1, characterized in that: The main control circuit of the electric vacuum suction cup is provided with a main control chip U9, a capacitor C29 and a capacitor C30. Among them, the main control chip U9 has 20 pins. The 6th pin of the main control chip U9 is connected to one end of the capacitor C29, one end of the capacitor C30 and the output end of the power supply voltage adjustment circuit. The 7th and 9th pins of the main control chip U9 are connected to the power management circuit for control. The 20th pin of the main control chip U9 is connected to the input end of the vacuum pump drive circuit for control. The 19th pin of the main control chip U9 is connected to the input end of the intake valve drive circuit for control. The 11th, 12th, 13th and 14th pins of the main control chip U9 are connected to the air pressure display indicator group for control. The 2nd pin of the main control chip U9 is connected to the output end of the suction cup air pressure detection circuit. The 3rd pin of the main control chip U9 is connected to the output end of the battery power detection circuit. The other end of the capacitor C29 and the other end of the capacitor C30 are grounded.

3. The small intelligent electric vacuum suction cup according to claim 2, characterized in that: The suction cup air pressure detection circuit is provided with a pressure sensor chip S3, a resistor R43, a resistor R38, an operational amplifier U7A, a resistor R47, a resistor R53, an operational amplifier U7B, a resistor R54 and a capacitor C22. Among them, the pressure sensor chip S3 has 6 pins. The 3rd pin of the pressure sensor chip S3 is connected to the output end of the power supply. The 5th pin of the pressure sensor chip S3 is connected to one end of the resistor R43. The other end of the resistor R43 is connected to the inverting input end of the operational amplifier U7A. The 2nd pin of the pressure sensor chip S3 is connected to one end of the resistor R38. The other end of the resistor R38 is connected to the non-inverting input end of the operational amplifier U7A. The output end of the operational amplifier U7A is connected to one end of the resistor R47. The other end of the resistor R47 is connected to the non-inverting input end of the operational amplifier U7B. The inverting input end of the operational amplifier U7B is connected to one end of the resistor R53. The output end of the operational amplifier U7B is connected to the other end of the resistor R53 and one end of the resistor R54. The other end of the resistor R54 is connected to one end of the capacitor C22 and the 2nd pin of the main control chip U9. The other end of the capacitor C22 is grounded.

4. The small intelligent electric vacuum suction cup according to claim 3, characterized in that: The vacuum pump drive circuit is provided with a vacuum pump interface CN4, a diode D6, a field effect transistor Q8, and a resistor R65. Among them, the output end of the vacuum pump interface CN4 can be connected to the power supply of the vacuum pump. The input end of the vacuum pump interface CN4 has 2 pins. The first pin of the vacuum pump interface CN4 is connected to the output end of the power supply and the negative electrode of the diode D6. The second pin of the vacuum pump interface CN4 is connected to the positive electrode of the diode D6 and the drain of the field effect transistor Q8. The gate of the field effect transistor Q8 is connected to one end of the resistor R65. The other end of the resistor R65 is connected to the 20th pin of the main control chip U9. The source of the field effect transistor Q8 is grounded.

5. The small intelligent electric vacuum suction cup according to claim 4, characterized in that: The intake valve drive circuit is provided with an intake valve interface CN5, a diode D7, a field effect transistor Q9, and a resistor R66. Among them, the intake valve interface CN5 is used to externally connect an intake valve. The intake valve interface CN5 has 2 pins. The first pin of the intake valve interface CN5 is connected to the output end of the power supply and the negative electrode of the diode D7. The second pin of the intake valve interface CN5 is connected to the positive electrode of the diode D7 and the drain of the field effect transistor Q9. The gate of the field effect transistor Q9 is connected to one end of the resistor R66. The other end of the resistor R66 is connected to the 19th pin of the main control chip U9. The source of the field effect transistor Q9 is grounded.

6. The small intelligent electric vacuum suction cup according to claim 5, wherein: The battery power detection circuit is provided with a resistor R70, a resistor R71, and a capacitor C28. Among them, one end of the resistor R70 is connected to the output end of the power supply. The other end of the resistor R70 is connected to one end of the resistor R71, one end of the capacitor C28, and the 3rd pin of the main control chip U9. The other end of the resistor R71 and the other end of the capacitor C28 are grounded.

7. The small intelligent electric vacuum sucker according to claim 6, characterized in that: The power supply voltage adjustment circuit is provided with a voltage adjustment chip U8, a capacitor C23, and a capacitor C26. Among them, the voltage adjustment chip U8 has 5 pins. The first pin of the voltage adjustment chip U8 is connected to the output end of the power supply and one end of the capacitor C23. The fifth pin of the voltage adjustment chip U8 is connected to one end of the capacitor C26 and the 6th pin of the main control chip U9. The other end of the capacitor C23 and the other end of the capacitor C26 are grounded.

8. The small intelligent electric vacuum suction cup according to claim 7, characterized in that: The power management circuit is provided with a power management chip U5, an inductor L1, a resistor R22, a field effect transistor Q7, a field effect transistor Q5, a resistor R17, a resistor R16, a field effect transistor Q4, and a charging interface TYPE_C1. Among them, the power management chip U5 has 24 pins. The 22nd pin of the power management chip U5 is connected to the 23rd pin of the power management chip U5, the 24th pin of the power management chip U5, and the drain of the field effect transistor Q4. The source of the field effect transistor Q4 is connected to the output end of the charging interface TYPE_C1. The input end of the charging interface TYPE_C1 can be connected to a wide voltage power supply of 5V - 12V. The 1st pin of the power management chip U5 is connected to one end of the resistor R17. The other end of the resistor R17 is connected to the drain of the field effect transistor Q5. The gate of the field effect transistor Q5 is connected to one end of the resistor R16. The other end of the resistor R16 is connected to the 7th pin of the main control chip U9. The 8th pin of the power management chip U5 is connected to one end of the resistor R22. The other end of the resistor R22 is connected to the gate of the field effect transistor Q7. The drain of the field effect transistor Q7 is connected to the 9th pin of the main control chip U9. The 15th pin of the power management chip U5 is connected to the 16th pin of the power management chip U5 and one end of the inductor L1. The other end of the inductor L1 can be connected to the power supply for charging. The source of the field effect transistor Q5 and the source of the field effect transistor Q7 are grounded.

9. The small intelligent electric vacuum suction cup according to claim 8, wherein: The model of the main control chip U9 is N32G003, and the model of the air pressure sensor chip S3 is YSP201 - 100.

10. The small intelligent electric vacuum suction cup according to claim 9, characterized in that: The model of the power management chip U5 is IP2365, and the power supply is a rechargeable lithium-ion battery.

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