Moxibustion bin control circuit capable of adaptively clamping moxa cones

Abstract

The utility model discloses a moxibustion bin control circuit capable of adaptively clamping a moxa cone, which comprises a parallel clamping jaw arranged in a moxa cone bin and used for clamping the moxa cone, a motor used for driving the parallel clamping jaw to open and close, and a detection circuit used for monitoring locked-rotor current in the working process of the motor in real time, the detection circuit comprises a single-chip microcomputer and a sampling resistor. Wherein a SenseA pin and a SenseB pin of a driving chip in the motor serve as output ends, the output ends are connected with a PA3 pin of the single-chip microcomputer to construct a detection channel, and an output pin of the single-chip microcomputer is connected with an input pin of the driving chip; one end of the sampling resistor is connected with the detection channel, and the other end is grounded. According to the utility model, through the detection circuit arranged on the clamping device, real-time monitoring and self-adaptive control of the locked-rotor current of the motor are realized. The clamping state of the moxa cone in the combustion process is guaranteed, and the clamping stability of the moxa cone is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection circuit, concretely relates to a kind of moxa stick's self-adapting clamping moxa moxibustion bin control circuit. BACKGROUND

[0002] With the combination of traditional medicine and modern technology, moxibustion, as an ancient and effective treatment method, has been widely used in modern medical and health care fields. As the main tool of moxibustion, the burning state of moxa stick directly affects the treatment effect.

[0003] However, during the burning process of moxa stick, due to the influence of various factors such as the texture of moxa stick, burning time (different materials of moxa stick, and the change of burning time, moxa stick will gradually become soft, and the clamping force of clamping jaw is not enough, which will cause the falling of moxa stick), the existing moxa stick clamping device cannot detect the tightness of moxa stick clamping, moxa stick may be too loose or too tight, moxa stick may fall or burn incompletely, causing waste of moxa stick or even complete extinguishing. This not only affects the effect of moxibustion, but also may cause safety hazards. In the existing moxa stick clamping device, the clamping force of moxa stick is usually not detected, which will cause the falling of moxa stick due to the softening of moxa stick caused by burning during clamping. For example, patent application No. CN202221539971.X discloses a portable moxa moxibustion robot with stable moxa temperature. The device cannot detect the clamping force of moxa stick during work, which will cause the falling of moxa stick due to the softening of moxa stick caused by burning during work.

[0004] In order to solve this problem, the self-adaptive moxa stick clamping device introduces a detection circuit for real-time monitoring of the clamping state of moxa stick to ensure the continuous and stable burning of moxa stick. UTILITY MODEL CONTENTS

[0005] An object of the utility model is to solve at least the above problems and / or defects, and to provide at least the advantages to be explained later.

[0006] In order to achieve these objects and other advantages according to the utility model, a moxa moxibustion bin control circuit for self-adaptive clamping of moxa stick is provided, which comprises parallel clamping jaws arranged in the moxa stick bin for clamping moxa stick, and a motor for driving the opening and closing of the parallel clamping jaws, characterized in that it further comprises a detection circuit for real-time monitoring of the locked-rotor current of the motor during work.

[0007] The detection circuit comprises a single-chip microcomputer and a sampling resistor.

[0008] The Sense A pin and the Sense B pin of the motor inner drive chip are used as output ends, the output ends are connected with a PA3 pin of the single-chip microcomputer, a detection channel is constructed, and an output pin of the single-chip microcomputer is connected with an input pin of the drive chip.

[0009] One end of the sampling resistor is connected with the detection channel, and the other end is grounded.

[0010] Preferably, the parallel clamping jaws comprise:

[0011] A U-shaped frame, a transmission screw is rotatably installed at a middle part of the U-shaped frame, and one end of the transmission screw is connected with an output end of a motor;

[0012] A sliding block is threadedly connected with the transmission screw;

[0013] Clamping jaw assemblies are arranged at two ends of the U-shaped frame in a hinged manner to clamp the incense stick in space;

[0014] One end of the clamping jaw assembly is hinged with the sliding block.

[0015] Preferably, the clamping jaw assembly comprises: a pair of L-shaped connecting pieces arranged on the U-shaped frame and hinged with the U-shaped frame, and clamping jaws arranged at one end of each L-shaped connecting piece.

[0016] The other end of each L-shaped connecting piece is hinged with a corresponding side of the sliding block through a connecting piece I.

[0017] Preferably, the clamping jaw assembly further comprises: a connecting piece II arranged between the U-shaped frame and each clamping jaw, and both ends of the connecting piece II are hinged with the U-shaped frame and the bottom of the clamping jaw respectively.

[0018] The L-shaped connecting piece and the clamping jaw are hinged with each other, and the connecting piece II is located outside the L-shaped connecting piece in space.

[0019] Preferably, an arc-shaped part matched with the incense stick is arranged on the clamping jaw.

[0020] The utility model at least has the following beneficial effects: the utility model realizes real-time monitoring and self-adaptive control of the motor locked-rotor current through the detection circuit arranged in the clamping device. The clamping state of the incense stick during the combustion process is ensured, and the stability of the incense stick clamping is ensured.

[0021] Other advantages, objects and features of the utility model will be embodied partly through the following description, and will be understood by those skilled in the art through research and practice of the utility model. DRAWINGS

[0022] Figure 1 The utility model discloses an incense stick clamping device structure sectional view;

[0023] Figure 2 The circuit diagram of the detection circuit of the locked-rotor current of the utility model;

[0024] Figure 3 The structure diagram of the parallel clamping jaw of the utility model;

[0025] Figure 4 The sectional view of the parallel clamping jaw of the utility model.

[0026] Marked in the figure: 1, moxa stick, 2, parallel clamping jaw, 3, motor, 4, drive chip, 5, single-chip microcomputer, 6, sampling resistance, 7, moxa stick bin, 8, U-shaped rack, 9, transmission screw, 10, sliding block, 11, L-shaped connecting piece, 12, clamping jaw, 13, connecting piece I, 14, connecting piece II. DETAILED DESCRIPTION

[0027] The utility model will be further described in detail below in combination with the drawings, so that the person skilled in the art can implement according to the description.

[0028] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that in the description of the utility model, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "mount", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected", which can be fixedly connected, can be detachably connected, or integrally connected, which can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through an intermediate medium, can be the communication inside two elements, and the specific meaning of the above terms in the utility model can be understood according to the specific circumstances for the person skilled in the art.

[0031] Furthermore, in the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] Figures 1-4 The utility model discloses a kind of moxa stick's self-adapting clamping moxa moxa stove control circuit of the utility model, comprising: the parallel gripper 2 of being set in moxa stick storehouse 7 is carried out to moxa stick 1 clamping, for driving parallel gripper 2 opening and closing motor 3, it is characterized in that, still include the detection circuit for real-time monitoring the locked-rotor current in the operation of motor 3;

[0033] The detection circuit comprises a single-chip microcomputer and a sampling resistor. The SenseA pin and the SenseB pin of the motor inner drive chip are used as output terminals. The output terminals are connected to the PA3 pin of the single-chip microcomputer to form a detection channel. The output pin of the single-chip microcomputer is connected to the input pin of the drive chip. One end of the sampling resistor is connected to the detection channel, and the other end is grounded.

[0034] Working principle:

[0035] When the moxa stick 1 is placed in the moxa stick storehouse 7, the parallel gripper 2 clamps it. The accurate clamping of the gripper ensures the stability of the moxa stick 1 during the burning process. The motor 3 serves as the power source of the clamping device and is responsible for driving the opening and closing of the parallel gripper 2. When the motor 3 starts, it transmits power to the parallel gripper 2 through a series of transmission mechanisms (such as gears, belts, etc.) to make it open and close. During the operation of the motor 3, when the gripper contacts the surface of the moxa stick 1, the current of the motor 3 will increase significantly. This increased current is called locked-rotor current. By measuring the value of the locked-rotor current through the detection circuit, the detection circuit can control the rotation and stop of the motor 3. According to the diameters of different moxa sticks 1, different sizes of locked-rotor current can be measured. Through the specific program written in the detection circuit, the program sets the locked-rotor current threshold for different sizes of moxa sticks 1. When the locked-rotor current is greater than or equal to the threshold, the detection circuit sends a signal to the motor 3, and the motor 3 maintains the output torque under this current, which can ensure the clamping reliability of the gripper for moxa sticks 1 of different sizes.

[0036] The detection circuit comprises a single-chip microcomputer 5 and a sampling resistor 6; wherein the SenseA pin and the SenseB pin of the motor drive chip 4 in the motor 3 are used as output terminals, the output terminals are connected with the PA3 pin of the single-chip microcomputer 5, a detection channel is constructed, and the output pin of the single-chip microcomputer 5 is connected with the input pin of the drive chip 4; one end of the sampling resistor 6 is connected with the detection channel, and the other end is grounded. By using this technical method, firstly, the SenseA pin and the SenseB pin of the motor drive chip 4 are used as output terminals. The two pins are usually used to provide information about the current of the motor 3. When the motor 3 works normally, the SenseA and SenseB pins output a voltage signal proportional to the current of the motor 3.

[0037] The voltage signal is directly connected to the PA3 pin of the single-chip microcomputer 5, so as to construct a detection channel. The single-chip microcomputer 5 receives the current information from the motor drive chip 4 through the detection channel.

[0038] In addition, in order to convert the current signal into a voltage signal and ensure that the signal is within the measurable range of the single-chip microcomputer 5, a sampling resistor 6 is introduced into the circuit. One end of the sampling resistor 6 is connected to the detection channel (i.e. connected between the SenseA or SenseB pin and the PA3 pin of the single-chip microcomputer 5), and the other end is grounded. When the current of the motor 3 flows, a voltage drop will be generated on the sampling resistor 6, and this voltage drop is the signal to be measured by the single-chip microcomputer 5.

[0039] The single-chip microcomputer 5 converts the received analog signal (i.e. the voltage drop on the sampling resistor 6) into a digital signal through its internal analog-digital converter (AD converter). The digital signal can be read and processed by the single-chip microcomputer 5, so as to obtain the size of the current of the motor 3.

[0040] Finally, the output pin of the single-chip microcomputer 5 is connected with the input pin of the motor drive chip 4, so that the single-chip microcomputer 5 can adjust the running state of the motor 3 by controlling the input pin. For example, when the single-chip microcomputer 5 detects that the motor 3 is in a locked-rotor state, it can send a signal to the motor drive chip 4 to make the motor 3 keep the rotating torque.

[0041] PB1--->L298n Input1

[0042] PB2--->L298n Input2

[0043] PB3--->L298n Input3

[0044] PB4--->L298n Input4

[0045] Wherein M1 and M2 are two phases of the stepper motor 3, A+ and A- are a set of coils, and B+ and B- are a set of coils.

[0046] The rotation of the motor 3 is controlled by the high and low levels of the GPIO of the single-chip microcomputer 5. Specifically, the PB1, PB2, PB3 and PB4 output pins of the single-chip microcomputer 5 are connected to the IN1, IN2, IN3 and IN4 input pins of the motor drive chip 4. The rotation of the motor 3 is controlled by the 8 digital sequences shown in Table 1. Each digital sequence is characterized by different levels of the input pins. For example, the digital sequence 1 is composed of the signal 1 of the IN1 input pin, the signal 0 of the IN2 input pin, the signal 0 of the IN3 input pin and the signal 0 of the IN4 input pin. The "1" in each pin signal represents a high level, and the "0" represents a low level. Each data sequence controls the rotation of the motor by a certain angle, and the 8 digital sequences can complete the rotation control of a circle in turn.

[0047]

[0048] Table 1

[0049] In the above scheme, the parallel clamping jaw 2 comprises: a U-shaped frame 8, a transmission screw 9 rotatably installed at the middle part of the U-shaped frame 8, and the output end of the motor is connected to one end of the transmission screw 9; a sliding block 10 threadedly connected with the transmission screw 9; a clamping jaw assembly arranged at both ends of the U-shaped frame 8 by hinging to clamp the incense stick in space; and one end of the clamping jaw assembly is hinged to the sliding block 10. When the motor is started, the output end drives the transmission screw 9 to rotate. Since the sliding block 10 is threadedly connected with the transmission screw 9, according to the principle of threaded transmission, during the continuous rotation of the transmission screw, the sliding block 10 moves linearly on the U-shaped frame 8 along the axial direction of the transmission screw 9. One end of the clamping jaw assembly is hinged to the sliding block 10, and when the sliding block 10 moves linearly on the U-shaped frame 8, it drives the clamping jaw assembly hinged thereto to move. The clamping jaw assembly can clamp the incense stick on the U-shaped frame 8 according to the movement of the sliding block 10. For example, when the sliding block 10 moves away from the incense stick, the clamping jaw assembly will gradually close until the incense stick is clamped tightly; when the sliding block 10 moves towards the incense stick, the clamping jaw assembly will gradually open to release the clamping of the incense stick. The rotation direction of the transmission screw 9 is controlled by the forward and reverse rotation of the motor, so that the sliding block 10 moves back and forth, and the clamping jaw assembly clamps and releases the incense stick.

[0050] In the above scheme, the clamping jaw assembly comprises: a pair of L-shaped connecting pieces 11 arranged on the U-shaped frame 8 and hinged to the U-shaped frame 8, and clamping jaws 12 arranged at one end of each L-shaped connecting piece 11; wherein the other end of each L-shaped connecting piece 11 is hinged to the corresponding side of the sliding block 10 through a connecting piece I 13. By using this technical method, when the motor is started, the output end of the motor drives the transmission screw 9 to start rotating. Since the sliding block 10 is threadedly connected with the transmission screw 9, according to the screw transmission principle, as the transmission screw 9 continues to rotate, the sliding block 10 will move linearly along the axial direction of the transmission screw 9 on the U-shaped frame 8.

[0051] The clamping jaw assembly is composed of a pair of L-shaped connecting pieces 11 arranged on the U-shaped frame 8 and hinged to the U-shaped frame 8, and clamping jaws 12 installed at one end of each L-shaped connecting piece 11. The other end of each L-shaped connecting piece 11 is connected to the corresponding side of the sliding block 10 through a connecting piece I 13, and the two ends of the connecting piece I 13 are hinged to the L-shaped connecting piece 11 and the sliding block 10, respectively.

[0052] When the sliding block 10 moves linearly on the U-shaped frame 8, the L-shaped connecting piece 11 connected to the sliding block 10 through the connecting piece I 13 will be driven. Because the L-shaped connecting piece 11 is hinged to the U-shaped frame 8, under the traction of the sliding block 10, the L-shaped connecting piece 11 will rotate around the hinge point with the U-shaped frame 8. With the rotation of the L-shaped connecting piece 11, the clamping jaw 12 will also move accordingly.

[0053] For example, when the sliding block 10 moves away from the incense stick, the connecting piece I 13 drives the L-shaped connecting piece 11 to rotate around the hinge point with the U-shaped frame 8, so that the clamping jaw 12 at the other end of the L-shaped connecting piece 11 gradually closes until it accurately clamps the incense stick on the U-shaped frame 8. When the sliding block 10 moves towards the incense stick, the above movement is reversed, and the L-shaped connecting piece 11 drives the clamping jaw 12 to gradually open, thereby releasing the clamping of the incense stick. By controlling the forward and reverse rotation of the motor to change the direction of rotation of the transmission screw 9, the reciprocating movement of the sliding block 10 can be realized, and then the stable clamping and releasing operation of the clamping jaw assembly on the incense stick can be achieved.

[0054] The scheme further comprises a connecting piece II 14 arranged between the U-shaped frame 8 and each clamping jaw 12, two ends of the connecting piece II 14 are respectively hinged with the U-shaped frame 8 and the bottom of the clamping jaw 12; wherein the L-shaped connecting piece 11 is hinged with the clamping jaw 12, and the connecting piece II 14 is located outside the L-shaped connecting piece 11 in space. An arc-shaped part adapted to the incense stick is arranged on the clamping jaw 12. By adopting the technical method, when the sliding block 10 moves linearly on the U-shaped frame 8, the L-shaped connecting piece 11 is driven to rotate around the hinge point with the U-shaped frame 8 through the connecting piece I 13. At the same time, since the bottom of the clamping jaw 12 is hinged with the U-shaped frame 8 through the connecting piece II 14, the rotation of the L-shaped connecting piece 11 will promote the clamping jaw 12 to perform a compound motion around two hinge points (the hinge point with the L-shaped connecting piece 11 and the hinge point with the connecting piece II 14). The compound motion can make the movement track of the clamping jaw 12 more stable and accurate when the clamping jaw 12 approaches or moves away from the incense stick. When the clamping jaw 12 gradually approaches the incense stick, the arc-shaped part can fit the outer contour of the incense stick. Compared with the ordinary plane clamping jaw, the arc-shaped part has a larger contact area with the incense stick, can provide more uniform clamping force, and can ensure that the incense stick is not easy to slip during clamping. With the connecting piece II 14, it acts as a stabilizer, shares part of the stress during the movement of the clamping jaw 12, effectively avoids unnecessary shaking or deviation of the clamping jaw 12 during the movement, makes the movement track of the clamping jaw 12 more stable and accurate when the clamping jaw 12 approaches or moves away from the incense stick, and thus ensures the reliability of the clamping action.

[0055] Although the embodiments of the present application have been disclosed as above, they are not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A moxa stick self-adaptive clamping moxibustion bin control circuit, comprising: Parallel clamping jaws are arranged in the moxa stick bin to clamp the moxa stick, and a motor is arranged to drive the parallel clamping jaws to open and close, characterized in that the detection circuit for monitoring the locked-rotor current of the motor in real time is further arranged. The detection circuit comprises a single-chip microcomputer and a sampling resistor. The SenseA pin and the SenseB pin of the driving chip in the motor are used as output ends, the output ends are connected with the PA3 pin of the single-chip microcomputer, a detection channel is constructed, and the output pin of the single-chip microcomputer is connected with the input pin of the driving chip. One end of the sampling resistor is connected with the detection channel, and the other end is grounded.

2. The moxa stick self-adapting clamping moxa combustion chamber control circuit according to claim 1, characterized in that, The parallel clamping jaws comprise: A U-shaped frame, a transmission screw is rotatably arranged at the middle part of the U-shaped frame, and one end of the transmission screw is connected with the output end of the motor; A sliding block is threadedly connected with the transmission screw; Clamping jaw assemblies are arranged at both ends of the U-shaped frame in a hinged manner to clamp the moxa stick in space; One end of the clamping jaw assembly is hinged with the sliding block.

3. The moxa stick self-adapting clamping moxa combustion chamber control circuit according to claim 2, characterized in that, The clamping jaw assembly comprises a pair of L-shaped connectors arranged on the U-shaped frame and hinged with the U-shaped frame, and clamping jaws arranged at one end of each L-shaped connector. The other end of each L-shaped connector is hinged with the corresponding side of the sliding block through a connecting piece I.

4. The moxa stick self-adapting clamping moxa combustion chamber control circuit according to claim 3, characterized in that, Further comprising: A connecting piece II is arranged between the U-shaped frame and each clamping jaw, and both ends of the connecting piece II are hinged with the U-shaped frame and the bottom of the clamping jaw, respectively. The L-shaped connector and the clamping jaw are hinged with each other, and the connecting piece II is located outside the L-shaped connector in space.

5. The muggle control circuit for the self-adapting held moxa stick muggle chamber according to claim 4, characterized in that, An arc-shaped part adapted to the moxa stick is arranged on the clamping jaw.

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