A flow calibration method, device and medium for a showerhead

Abstract

The application discloses a flow calibration method and device for a nozzle, and a medium; the flow calibration method comprises the following steps: acquiring the flow state of the medium in the nozzle; the state of the medium comprises an unstable state and a stable state; if the state of the medium in the nozzle indicates that the medium is in the unstable state, acquiring the flow value of the flowmeter; if the state of the medium in the nozzle indicates that the medium is in the stable state, acquiring the flow value of the flowmeter; if the detected flow value of the flowmeter and the preset value exceed a preset flow rate difference value, controlling the flow calibration device to perform flow calibration until the detected flow value of the flowmeter and the preset value are within the preset flow rate difference value; the nozzle can be detected again after actual flow exists, the method is simple and easy to implement, and the cost is not increased; and the flow calibration device can automatically calibrate in time, calibrate the flow of the nozzle, eliminate flow errors, and is simple and easy to implement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization, in particular to a flow calibration method and device for a spray head and a medium. BACKGROUND

[0002] At present, the spray head uses the rotation of a motor as the power for adjusting the opening size of the flow regulating mechanism, and the spray head adjusts the flow of the flow regulating valve by adjusting the opening size; the motor drives the terminal output shaft to rotate through a variable speed gear and a clutch gear, and then drives the flow regulating valve through the terminal output shaft to change the opening size of the flow regulating valve.

[0003] The flow regulating valve control system further comprises a magnet (equivalent to the Hall magnet of the present application) that rotates synchronously with the terminal output shaft and a magnetic induction assembly corresponding to the magnet, to calculate the number of revolutions of the terminal output shaft and obtain different feedback signals, and further obtain the opening size of the flow regulating valve.

[0004] Therefore, during the assembly of the atomization assembly, the flow of the spray head needs to be calibrated to ensure the opening size of the flow regulating valve, so the spray head needs to be tested; and the current test is generally completed manually, that is, the liquid inlet of the spray head is connected with a flowmeter, the gas inlet of the spray head is connected with a gas pump, the adjustment part is manually rotated until the flow detected by the flowmeter reaches the set flow, the gear is installed on the adjustment part, the Hall magnet on the fixing ring is aligned with the spray head, and then the fixing ring is installed on the gear.

[0005] During the above installation process, alignment is performed by relying on vision, but since the adjustment part, the gear and the fixing ring are relatively small, it is difficult to accurately connect and align by relying on vision, which may cause errors in the position of the Hall magnet, affect the acquisition of the feedback signal, and further affect the accurate control of the opening size of the flow regulating valve, thereby affecting the reliability of the spray head. SUMMARY

[0006] The present application relates to the technical field of atomization, in particular to a flow calibration method and device for a spray head and a medium.

[0007] To achieve the above object, the present application adopts the technical scheme: the present application is a flow calibration method for a nozzle, comprising: obtaining the flow state of the medium in the nozzle, the state of the medium comprising a non-stable state and a stable state; if the state of the medium in the nozzle indicates that the medium is in the non-stable state, obtaining the flow value of the flow meter; if the state of the medium in the nozzle indicates that the medium is in the stable state, obtaining the flow value of the flow meter; if the detected flow value of the flow meter and the preset value exceed the preset flow rate difference value, controlling the flow calibration device to perform flow calibration until the detected flow value of the flow meter and the preset value are within the preset flow rate difference value.

[0008] Optionally, the obtaining of the flow state of the medium in the nozzle comprises: obtaining the state of the pump to determine the real-time state of the medium in the pipeline; the real-time state of the medium comprises a flow state and a non-flow state, and the state of the pump comprises a working state and a non-working state; the pump is in communication with the air inlet of the nozzle; if the state of the pump indicates that the pump is currently in the non-working state, it is determined that the medium is in the non-flow state, and the flow value of the flow meter is not obtained; if the state of the pump indicates that the pump is currently in the working state, it is determined that the medium is in the flow state, and the flow value of the flow meter is obtained.

[0009] In the non-flow state, the actual flow of the medium is 0; in the flow state, the actual flow of the medium is not 0.

[0010] Optionally, the flow meter continuously obtains the flow value of the medium in the nozzle; if there is no actual flow in the nozzle, but the flow meter has flow value output, it can be determined that the flow meter is incorrect.

[0011] Optionally, the state of the medium in the nozzle indicating that the medium is in the non-stable state or the stable state comprises: determining whether the flow rate difference between the current flow value and the flow value obtained last time is within the preset flow rate difference range; if the flow rate difference is within the preset flow rate difference range, it is determined that the medium is in the stable state; if the flow rate difference is not within the preset flow rate difference range, it is determined that the medium is in the non-stable state.

[0012] Optionally, the current flow value and the flow value obtained last time are detected every predetermined time.

[0013] Optionally, the state of the medium in the nozzle indicating that the medium is in the non-stable state or the stable state comprises: obtaining the time when the pump is in the working state; if the time when the pump is in the working state is not less than the set time, it is determined that the medium is in the stable state; if the time when the pump is in the working state is less than the set time, it is determined that the medium is in the non-stable state.

[0014] Optionally, before the flow calibration, the method further comprises: obtaining initial position information of the first target object and the second target object, and determining whether the initial position information of the first target object and the second target object satisfies a preset origin condition; if the first target object and the second target object do not satisfy the origin condition, the first brake mechanism and the second brake mechanism respectively calibrate the first target object and the second target object to the origin.

[0015] The origin calibration comprises: the first brake mechanism and the second brake mechanism respectively drive the first target object and the second target object to rotate until the first target object and the second target object satisfy the preset origin condition.

[0016] The origin condition can be set by a person skilled in the art according to actual needs, and the present application does not make specific limitation here.

[0017] Optionally, the flow calibration comprises: the first brake mechanism drives the first target object to rotate until the detected flow value of the flow meter and the preset value are within a preset flow rate difference; and the second brake mechanism drives the second target object to rotate to realize synchronous rotation with the first target object.

[0018] Optionally, after the flow calibration, the method further comprises: the second brake mechanism installs the third target object on the second target object.

[0019] Optionally, before the obtaining of the state of the pump, the method further comprises: obtaining a first control instruction sent to the pump, the first control instruction comprising an opening instruction and a closing instruction issued to the pump; if the first control instruction is the opening instruction, determining that the state of the pump is a working state; and if the first control instruction is the closing instruction, determining that the state of the pump is a non-working state.

[0020] The control device can call the first control instruction sent by itself to determine whether the first control instruction sent to the pump at the nearest time point from the current time point is the opening instruction or the closing instruction; if the first control instruction sent to the pump by the control device is the opening instruction, the control device can determine that the state of the pump is the working state; otherwise, if the first control instruction sent to the pump by the control device is the closing instruction, the control device can determine that the state of the pump is the non-working state.

[0021] Optionally, before the obtaining of the state of the pump, the method further comprises: receiving a second control instruction sent by an external device, the second control instruction being used for controlling the state of the pump; and controlling the state of the pump according to the second control instruction.

[0022] Optionally, the external device is a detection device, and the second control instruction is a detection of a position of the nozzle by the external device, used for controlling a state of the pump and then issuing an instruction.

[0023] Optionally, the second control instruction is sent by the external device at a predetermined time.

[0024] Optionally, the second control instruction is sent by the external device at a predetermined time.

[0025] Optionally, the external device is a terminal device, and the second control instruction is generated according to operation information of a user on the terminal device.

[0026] Optionally, the external device includes one or more of a remote controller, a smart phone, a desktop computer, a laptop computer, a server, and a bracelet.

[0027] The application also claims a flow calibration device, comprising,

[0028] a first braking mechanism for flow calibration of a first target object;

[0029] a second braking mechanism for position calibration and installation of a second target object and the second target object;

[0030] a flow meter for detecting a flow of a medium in the first target object;

[0031] a gas pump connected to the first target object, used for conveying the medium;

[0032] a control device used for storing and issuing an instruction.

[0033] Optionally, the flow calibration device further comprises a control device, and the flow calibration device is communicatively connected to the control device; the control device comprises a processor and a memory, the memory is used for storing an instruction, and the processor calls the instruction stored in the memory to implement the instruction.

[0034] A computer readable storage medium, having a computer program stored thereon, the computer program being executed by a processor to implement a flow calibration method.

[0035] Due to the above technical solution, the application has the following advantages compared with the prior art:

[0036] 1. The application provides a flow calibration method for a nozzle, obtaining a flow state of a medium in the nozzle, the state of the medium including an unstable state and a stable state; if the state of the medium in the nozzle indicates that the medium is in the unstable state or the stable state, obtaining a flow value of a flow meter; that is, after ensuring that the nozzle has an actual flow, the flow meter is detected again, which is simple and easy to implement and does not increase the cost.

[0037] 2. The application provides a flow calibration method for a nozzle, if the detected flow value of the flow meter exceeds the preset flow value by a preset flow rate difference, the flow calibration device is controlled to perform flow calibration until the detected flow value of the flow meter and the preset value are within the preset flow rate difference; the flow calibration device is automatically calibrated in time, the flow of the nozzle is calibrated, the flow error is eliminated, and the method is simple and easy to implement.

[0038] 3. The application provides a flow calibration method for a nozzle, if the state of the medium in the nozzle indicates that the medium is in a stable state, the flow value of the flow meter is obtained, so that if there is no actual flow in the nozzle, but the flow meter has a flow value output, it can be judged that the flow meter has an error.

[0039] 4. The application provides a flow calibration device and medium for a nozzle, comprising a first brake mechanism and a second brake mechanism, the first brake mechanism adjusts the adjusting part of the nozzle to realize flow adjustment, and the second brake mechanism adjusts the relative position of the gear and the fixed ring; the fixed ring is provided with a Hall magnet, and the position of the gear and the fixed ring is adjusted and arranged correspondingly to realize accurate butt joint of the Hall magnet, the gear and the adjusting part. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 A structural schematic view of a flow calibration device provided for the embodiment 1 of the application;

[0041] Figure 2 A structural schematic view of the first brake mechanism and the second brake mechanism provided for the embodiment 1 of the application;

[0042] Figure 3 A flow chart of the calibration method provided by the application.

[0043] 1, air pump; 2, flow meter 2; 3, first brake mechanism; 4, second brake mechanism; 5, nozzle; 6, control device; 7, first driving head; 8, first base; 9, first motor; 10, lifting air cylinder; 11, second driving head; 12, second base; 13, second motor. DETAILED DESCRIPTION

[0044] In order to more clearly understand the above-mentioned purposes, features and advantages of the application, the application will be further described in detail below in combination with the drawings and specific embodiments, and these drawings are all simplified schematic views, which only schematically show the basic structure of the application, and therefore only show the relevant structures, and it should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be recognized by one skilled in the art that the present application can be practiced without the specific details and, therefore, the scope of the present application is not limited to the details disclosed herein.

[0046] Please refer to Figure 1 and Figure 2 , the flow calibration device includes air pump 1, flow meter 2, first brake mechanism 3 and second brake mechanism 4, and the flow calibration device is communicatively connected to the control device 6.

[0047] Optionally, the flow calibration device and the control device 6 can be wired or wirelessly connected, and the present embodiment does not make specific limitations.

[0048] Optionally, the flow meter 2 can be directly connected to the liquid inlet of the nozzle 5, but the present embodiment is not limited to directly connecting the flow meter 2 to the liquid inlet of the nozzle 5, and can also be indirectly connected to the liquid inlet of the nozzle 5. As long as the position for monitoring the flow in the nozzle 5 is within the scope of the present application.

[0049] The first target object, the second target object and the third target object are respectively the nozzle 5, the gear and the fixed ring.

[0050] Optionally, the first brake mechanism 3 includes a first driving head 7, a first base 8 and a first motor 9; the first driving head 7 has a first limiting portion inside, which is used for clamping the adjusting portion of the nozzle 5; the first driving head 7 penetrates through the first base 8, and the first base 8 is fixed to the outer periphery of the first driving head 7; a second limiting portion is formed on the first base 8, which is used for clamping the shell of the nozzle 5.

[0051] The flow meter 2 is connected to the liquid inlet of the nozzle 5, the air pump 1 is connected to the air inlet of the nozzle 5, and the first brake mechanism 3 calibrates the flow of the nozzle 5.

[0052] The second brake mechanism 4 includes a lifting cylinder 10, a second driving head 11, a second base 12 and a second motor 13: the top end of the second driving head 11 forms a third limiting portion, which is used for clamping the gear; the second base 12 is sleeved on the outer periphery of the second driving head 11 and rotates synchronously with the second driving head 11; the output end of the second motor 13 is connected with the second driving head 11; the second motor 13 drives the second driving head 11 to rotate, and the second driving head 11 drives the gear to rotate, thereby changing the relative position of the gear and the fixed ring; the output end of the lifting cylinder 10 forms a clamping portion, and the fixed ring is mounted on the clamping portion; the lifting cylinder 10 drives the fixed ring to descend and install the fixed ring on the gear.

[0053] Optionally, the first brake mechanism 3 further comprises a position sensor for detecting whether the nozzle 5 is installed on the first base 8; the first position sensor sends a second control instruction to the pump after detecting the nozzle 5; if the first position sensor detects that the nozzle 5 is installed on the first base 8 and the second control instruction is an opening instruction, it is determined that the state of the pump is the working state; if the first position sensor does not detect that the nozzle 5 is installed on the first base 8 and the second control instruction is a closing instruction, it is determined that the state of the pump is the non-working state.

[0054] Embodiment 2

[0055] A flow calibration method for a nozzle, comprising,

[0056] S100, acquiring a real-time state of a medium in the nozzle;

[0057] comprising acquiring a state of a pump, the real-time state of the medium comprising a flowing state and a non-flowing state, and the state of the pump comprising a working state and a non-working state, the pump being in communication with an air inlet of the nozzle.

[0058] acquiring the state of the pump, comprising acquiring a first control instruction sent to the pump, the first control instruction comprising an opening instruction and a closing instruction sent to the pump; if the first control instruction is the opening instruction, it is determined that the state of the pump is the working state; if the first control instruction is the closing instruction, it is determined that the state of the pump is the non-working state.

[0059] if the state of the pump indicates that the pump is currently in the non-working state, it is determined that the medium is in the non-flowing state, and the flow value of the flowmeter is not acquired;

[0060] if the state of the pump indicates that the pump is currently in the working state, it is determined that the medium is in the flowing state.

[0061] wherein the non-flowing state can be understood as a static state, and in the non-flowing state, the actual flow of the medium is 0; in the flowing state, the actual flow of the medium is non-0.

[0062] S200, if it is determined that the medium is in the flowing state, acquiring a flowing state of the medium in the nozzle;

[0063] comprising acquiring a time during which the pump is in the working state:

[0064] if the time during which the pump is in the working state is not less than a set time, it is determined that the medium is in a stable state;

[0065] if the time during which the pump is in the working state is less than the set time, it is determined that the medium is in a non-stable state.

[0066] S300, if the state of the medium in the nozzle indicates that the medium is in the stable state, acquiring the flow value of the flowmeter.

[0067] When the air pump is turned on, air is sprayed at high speed from the nozzle, so that a negative pressure environment is formed at the nozzle of the liquid cavity and inside the liquid cavity. The liquid cavity and the nozzle inlet are connected in communication, and the flow meter is connected to the liquid inlet of the nozzle. The flow meter can detect the flow at the nozzle structure by detecting the flow of gas in the liquid cavity, that is, the flow of the nozzle can be detected, and flow monitoring at the nozzle nozzle structure is not required.

[0068] S400, if the flow value detected by the flow meter and the preset value exceed the preset flow rate difference value, the flow calibration device is controlled to calibrate the flow until the flow value detected by the flow meter and the preset value are within the preset flow rate difference value;

[0069] Specifically, it includes:

[0070] S410, the initial position information of the nozzle and the gear is obtained, and it is determined whether the initial position information of the nozzle and the gear meets the preset origin condition. If the nozzle and the gear do not meet the origin condition, the first brake mechanism and the second brake mechanism respectively calibrate the origin of the nozzle and the gear.

[0071] S420, the first brake mechanism drives the nozzle to rotate until the flow value detected by the flow meter and the preset value are within the preset flow rate difference value; the second brake mechanism drives the gear to rotate to realize synchronous rotation with the nozzle.

[0072] S430, the second brake mechanism installs the fixing ring on the gear.

[0073] S440, the assembled gear and the third target are installed on the first target.

[0074] Embodiment 3

[0075] A flow calibration method for a nozzle, comprising:

[0076] S100, obtaining the real-time state of the medium in the nozzle;

[0077] The method comprises obtaining the state of the pump, and the real-time state of the medium includes a flowing state and a non-flowing state, and the state of the pump includes a working state and a non-working state. The pump is in communication with the air inlet of the nozzle.

[0078] A second control instruction is received, which is used to control the state of the pump. The second control instruction includes an open instruction and a close instruction for the pump. If the second control instruction is an open instruction, it is determined that the state of the pump is a working state. If the second control instruction is a close instruction, it is determined that the state of the pump is a non-working state.

[0079] Optionally, the external device is a detection device, and the second control instruction is a detection of a position of the spray head by the external device, used to control a state of the pump and then issue an instruction.

[0080] Optionally, the second control instruction is sent by the external device at a predetermined time interval.

[0081] Optionally, the second control instruction is sent by the external device at a predetermined time point.

[0082] Optionally, the external device is a terminal device, and the second control instruction is generated according to operation information of a user on the terminal device.

[0083] Optionally, the external device includes one or more of a remote controller, a smart phone, a desktop computer, a laptop computer, a server, and a bracelet.

[0084] If the state of the pump indicates that the pump is currently in a non-working state, it is determined that the medium is in a non-flowing state, and the flow value of the flow meter is not acquired.

[0085] If the state of the pump indicates that the pump is currently in a working state, it is determined that the medium is in a flowing state.

[0086] S200, if it is determined that the medium is in a flowing state, a flow state of the medium in the spray head is acquired, including determining whether a flow rate difference value between a current flow value and a last acquired flow value is within a preset flow rate difference value range.

[0087] If the flow rate difference value is within the preset flow rate difference value range, it is determined that the medium is in a stable state; if the flow rate difference value is not within the preset flow rate difference value range, it is determined that the medium is in a non-stable state.

[0088] Optionally, the preset flow rate difference value can be set to 0. However, in actual application, due to a certain deviation of the measurement information of the flow meter or other factors, the flow rate difference values acquired at the same range are not equal, but the difference between the two values is within a smaller range. Therefore, the preset flow rate difference can be set to a smaller non-0 value, for example, 1. The preset flow rate difference value can be set according to actual needs by a person skilled in the art, which is not specifically limited in the embodiment.

[0089] The current flow value is a flow rate difference value acquired at a current time, and the last acquired flow value is a flow rate difference value acquired at a last time; the current flow value and the last acquired flow value are detected at a predetermined time interval.

[0090] It should be noted that, due to the measurement information of the flowmeter may exist certain deviation, in order to avoid the flowmeter can not accurately detect due to the small change of the medium flow rate, the time interval between the current flow value and the last obtained flow value can be long, that is, the predetermined time is long: the predetermined time can be set by the person skilled in the art according to the actual demand, which is not limited in the embodiment.

[0091] S300, if the state of the medium in the nozzle indicates that the medium is in a stable state, the flow value of the flowmeter is obtained.

[0092] When the air pump is turned on, the airflow is sprayed out at high speed from the nozzle, so that a negative pressure environment is formed at the nozzle of the liquid cavity and in the liquid cavity. The liquid cavity and the liquid inlet of the nozzle are connected, and the flowmeter is connected with the liquid inlet of the nozzle. The flowmeter can detect the flow at the nozzle structure by detecting the flow of the gas in the liquid cavity, that is, the flow detection of the nozzle can be realized, and the flow monitoring at the nozzle structure is not needed.

[0093] S400, if the flow value detected by the flowmeter is beyond the preset flow rate difference value from the preset value, the flow calibration device is controlled to calibrate the flow until the flow value detected by the flowmeter is within the preset flow rate difference value from the preset value.

[0094] Specifically, it includes:

[0095] S410, the initial position information of the nozzle and the gear is obtained, and whether the initial position information of the nozzle and the gear meets the preset origin condition is confirmed. If the nozzle and the gear do not meet the origin condition, the first brake mechanism and the second brake mechanism respectively calibrate the origin of the nozzle and the gear.

[0096] S420, the first brake mechanism drives the nozzle to rotate until the flow value detected by the flowmeter is within the preset flow rate difference value from the preset value; the second brake mechanism drives the gear to rotate to realize the synchronous rotation with the nozzle.

[0097] S430, the second brake mechanism installs the fixing ring on the gear.

[0098] S440, the assembled gear and the third target are installed on the first target.

[0099] In several embodiments provided in the present application, it should be understood that the disclosed device and method can be realized by its inventive way.

[0100] For example, the apparatus embodiments described above are merely exemplary, for example, the division of the units, the division is only a logical function division, and in actual implementation, another division manner can be used, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0101] The units described as separate components in the application can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0102] In addition, the functional units in each embodiment of the application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware, or in the form of hardware plus software function unit. The integrated unit realized in the form of software function unit can be stored in a computer readable storage medium. The software function unit stored in the storage medium includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute part of the steps of the method described in each embodiment of the application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0103] It can be clearly understood by those skilled in the art that, for the convenience and brevity of description, only the division of the above functional modules is exemplified, and in actual application, the above functions can be allocated by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0104] The specific working process of the device described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0105] Finally, it should be noted that the above-described embodiments are merely used to illustrate the technical solutions of the present application, instead of limiting the present application; and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified or equivalent replacements can be made to some or all of the technical features thereof, without departing from the scope of the technical solutions of the embodiments of the present application.

[0106] In the description of the present application, it should be understood that all diameters in the present application refer to diameters, and terms such as "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and therefore should not be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0107] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0108] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a mediating element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a mediating element. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiments.

[0109] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the above-described embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the above-described embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flow rate calibration method for a nozzle, characterized in that, The method comprises the following steps: acquiring the flow state of the medium in the spray head, the state of the medium including unstable state and stable state; if the state of the medium in the spray head indicates that the medium is in the unstable state, acquiring the flow value of the flow meter; if the state of the medium in the spray head indicates that the medium is in the stable state, acquiring the flow value of the flow meter, and if the flow value detected by the flow meter is beyond the preset flow rate difference value from the preset value, controlling the flow calibration device to perform flow calibration until the flow value detected by the flow meter is within the preset flow rate difference value from the preset value, the control of the flow calibration device to perform flow calibration comprising the following steps: a first braking mechanism drives a first target object to rotate until the flow value detected by the flow meter is within the preset flow rate difference value from the preset value, the first target object being the spray head, wherein the first braking mechanism comprises a first driving head, a first base, a first motor and a position sensor, the first driving head is internally provided with an adjusting portion first limiting portion for clamping the spray head, the first driving head penetrates through the first base and is arranged, and the first base is fixed to the outer periphery of the first driving head; a second limiting portion of a shell for clamping the spray head is formed on the first base, and the position sensor is used to detect whether the spray head is installed on the first base; a second braking mechanism drives a second target object to rotate to realize synchronous rotation with the first target object, the second target object being a gear, and after the control of the flow calibration device to perform flow calibration, the second braking mechanism comprises a lifting cylinder, a second driving head, a second base and a second motor, the top end of the second driving head forms a third limiting portion for clamping the gear, the second base is sleeved on the outer periphery of the first driving head and synchronously rotates with the second driving head, the output end of the second motor is connected with the second driving head, the second motor drives the second driving head to rotate, the second driving head drives the gear to rotate, the relative position between the gear and the fixed ring is changed, the output end of the lifting cylinder forms a clamping portion, the fixed ring is installed on the clamping portion, and the lifting cylinder drives the fixed ring to descend and install the fixed ring on the gear.

2. The method according to claim 1, wherein the acquiring the flow state of the medium in the spray head comprises acquiring the state of the pump to determine the real-time state of the medium in the pipeline, the real-time state of the medium including flow state and non-flow state, and the state of the pump including working state and non-working state, the pump being in communication with the air inlet of the spray head; if the state of the pump indicates that the pump is currently in the non-working state, it is determined that the medium is in the non-flow state, and the flow value of the flow meter is not acquired; if the state of the pump indicates that the pump is currently in the working state, it is determined that the medium is in the flow state, and the flow value of the flow meter is acquired.

3. The method according to claim 1, wherein the state of the medium in the spray head indicates that the medium is in the unstable state or the stable state, comprising: determining whether the flow rate difference between the current flow value and the flow value acquired last time is within the preset flow rate difference range. ​ ​ If the flow rate difference value is within the preset flow rate difference value range, it is determined that the medium is in a stable state. If the flow rate difference value is not within the preset flow rate difference value range, it is determined that the medium is in an unstable state.

4. A method of flow calibration for a showerhead as described in claim 3, wherein, The current flow value and the flow value obtained last time are detected every predetermined time.

5. The flow calibration method for a showerhead as claimed in claim 1, wherein the state of the medium in the showerhead indicates whether the medium is in an unstable state or a stable state, and the method further comprises: acquiring the time when the pump is in the working state, if the time when the pump is in the working state is not less than the set time, it is determined that the medium is in a stable state if the time when the pump is in the working state is less than the set time, it is determined that the medium is in an unstable state.

6. The flow calibration method for a showerhead as claimed in claim 1, wherein before the control flow calibration device performs flow calibration, the method further comprises: acquiring initial position information of the first target object and the second target object, and confirming whether the initial position information of the first target object and the second target object satisfies a preset origin condition; if the first target object and the second target object do not satisfy the origin condition, the first brake mechanism and the second brake mechanism respectively perform origin calibration on the first target object and the second target object. comprising: the first brake mechanism for flow calibration of the first target object; 7. A flow calibration device for implementing the flow calibration method for a showerhead as claimed in any one of claims 1-6, characterized in that, the second brake mechanism for position calibration and installation of the second target object and the second target object; the flow meter for detecting the flow of the medium in the first target object; the air pump connected with the first target object for conveying the medium; the control device for storing and issuing instructions. a computer program is stored thereon, and the computer program is executed by a processor to implement the method of any one of claims 1-6. ​ 8. A computer-readable storage medium, characterized in that, ​

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