WO2018176579A1 - Miniature intelligent tuning fork-type level gauge - Google Patents

Miniature intelligent tuning fork-type level gauge Download PDF

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Publication number
WO2018176579A1
WO2018176579A1 PCT/CN2017/083536 CN2017083536W WO2018176579A1 WO 2018176579 A1 WO2018176579 A1 WO 2018176579A1 CN 2017083536 W CN2017083536 W CN 2017083536W WO 2018176579 A1 WO2018176579 A1 WO 2018176579A1
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WO
WIPO (PCT)
Prior art keywords
circuit
level gauge
tuning fork
connecting body
output
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PCT/CN2017/083536
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French (fr)
Chinese (zh)
Inventor
陈怡因
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伊玛精密电子（苏州）有限公司
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Publication of WO2018176579A1 publication Critical patent/WO2018176579A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/21—Pc I-O input output
    • G05B2219/21084—Actuate module, seek response by counting up address, store address on response
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25257—Microcontroller

Definitions

  • the invention relates to the field of medium monitoring instruments in the instrument and meter industry, in particular to a miniature intelligent tuning fork type level meter.
  • the tuning fork level meter is mainly used in the material level and liquid level control of the material silo or the upper and lower limit alarms.
  • the tuning fork type level switch is designed by the principle of damping the vibration of the tuning fork and the piezoelectric effect.
  • the sensing part is composed of a tuning fork and vibrates with a fixed vibration frequency and amplitude. When the tuning fork is subjected to material damping, the tuning fork The vibration is stopped, and the change is detected by the detecting circuit, transmitted to the driving circuit, and a switching signal is issued to achieve the purpose of controlling the level.
  • the traditional tuning fork type level meter mostly uses analog circuit to judge whether the fork body stops vibration and outputs the corresponding switching signal, which will cause the problem of false alarm, and the output mode is single, the cost is high, the shape is cumbersome, and the process is complicated. Installation and maintenance is not convenient.
  • CN201514255U provides a strong vibration intelligent tuning fork type level gauge, comprising a detecting piece vibrator and a casing, wherein a signal processing circuit, an MCU control unit and an output circuit are arranged in the casing.
  • the output end of the probe vibrator is connected to the input end of the signal processing circuit
  • the output end of the signal processing circuit is connected to the input end of the MCU control unit
  • the MCU control unit outputs a signal to the output circuit.
  • the strong vibration intelligent tuning fork type level gauge provided by the invention adopts an intelligent control circuit, and the leveling device of the invention can be applied to any medium through the learning function and the setting function of the MCU control unit, and can be set to be different in level 4
  • the sensitivity makes the level meter suitable for occasions where the liquid level fluctuates greatly, effectively avoiding switch malfunction.
  • the level gauge switch fork body is long, not only can not be applied to some small pipe diameter occasions, but also can not meet the requirements of the installation and performance of the medical and health industry.
  • the present invention aims to provide a miniature intelligent tuning fork type level gauge with high sensitivity and various output modes, which can meet the miniaturized intelligent tuning fork type level gauge used in the medical and health industry.
  • the present invention provides a miniature smart tuning fork level gauge including a housing, a vibrator, and a circuit portion, the vibrator including a fork body, a crystal assembly, and a connecting body, the crystal assembly The output end is connected to the circuit portion, the circuit portion is disposed in the housing, the fork body is connected to the connecting body, the crystal assembly is located inside the fork body, and the fork body is integrally formed structure.
  • the upper part of the fork body is a cylinder, and the middle part of the fork body forms two identical branches, and both forks are rod-shaped or cylindrical.
  • the total height of the fork body is not more than 50 mm.
  • the fork body is hygienic stainless steel, and the mini structure design can be used in the food grade industry.
  • the end of the branch is provided with a polygonal sheet or a teardrop-shaped progressive sheet structure.
  • the casing is a cylinder
  • the casing comprises an upper cover and a lower cover
  • the casing is a cylinder
  • the casing comprises an upper cover and a lower cover
  • the lower cover is provided with two cards.
  • a slot the upper card slot is provided with a sealing ring
  • the lower card slot is provided with a sealing pad
  • the upper cover and the lower cover are sealed by an interference fit
  • the lower cover and the connecting body are fixed by an interference fit
  • the upper cover A display cover for displaying power and output status, buttons and connectors for learning and parameter setting are provided, and the connectors are disposed on the side of the upper cover for connecting external cables.
  • the circuit portion includes a signal processing circuit, an MCU control unit, an output circuit, a display circuit, an operating parameter setting circuit, a driving circuit, and a power source
  • the signal processing circuit is connected to the MCU control unit, the vibrator, and the power source.
  • the MCU control unit is connected to the display circuit, the operating parameter setting circuit, and the output circuit, and the vibrator is further connected to the driving circuit.
  • the operating parameter setting circuit includes a button for implementing a learning function of the MCU control unit and a setting output mode
  • the output mode of the output circuit is an NPN, a PNP or a relay output.
  • the learning function of the MCU control unit can realize measurement of various media such as powder, solid particles and liquid.
  • the output mode function of the MCU control unit can set various output modes of NPN, PNP and relay to meet different control modes. .
  • the crystal assembly is composed of at least one ceramic and at least one crystal.
  • the upper end of the connecting body is provided with a cylindrical stepped surface
  • the lower part of the cylindrical stepped surface is provided with a sealing ring
  • the sealing ring is fixed under the interference fit of the connecting body and the shell
  • the middle part of the connecting body is a cylindrical surface.
  • two corresponding wrench slots are provided on both sides of the cylindrical surface, and a lower portion of the connecting body is provided with a thread.
  • the upper end of the connecting body is provided with a cylindrical stepped surface, and a lower part of the cylindrical stepped surface is provided with a sealing ring, and the sealing ring is fixed under the interference fit of the connecting body and the casing, and the lower side of the sealing ring is provided a cylindrical surface 2, a cylindrical surface is provided below the cylindrical surface 2, the diameter of the cylindrical surface 1 is larger than the diameter of the cylindrical surface 2, and two corresponding wrench slots are provided on both sides of the cylindrical surface
  • the lower part of the connecting body is provided with a thread, the thread is connected with an adapter, the upper end of the thread is provided with a card slot, the lower end of the screw is provided with a step, and the card slot and the step are respectively provided with a sealing pad and a sealing Pad two.
  • the provision of a concave cylindrical surface in the middle can increase the heat dissipation function of the connecting body, and can be used to install the adapter, which can reach the food hygiene level.
  • the adapter is a solder adapter or a chuck adapter
  • the adapter includes at least an adapter of a solder adapter and a chuck adapter.
  • the micro smart tuning fork type level gauge provided by the present invention has the following beneficial effects: the fork body is integrated Molding design, compact structure, high reliability, can measure powder, solid particles, liquid and other media, high sensitivity, with a variety of output methods, using interference fit with non-encapsulated structure, protection grade up to IP68 and IP69K, process Simple, easy to install and maintain, with adapters to meet the needs of special industries such as health care.
  • Figure 1 is a block diagram of the miniaturized intelligent tuning fork level gauge.
  • FIG. 2 is a schematic structural view of a specific embodiment of a miniaturized intelligent tuning fork type level gauge.
  • FIG. 3 is a schematic structural view of another embodiment of a miniaturized smart tuning fork level gauge.
  • a miniature smart tuning fork type level gauge includes a housing 1, a vibrator 3, and a circuit portion 2.
  • the vibrator 3 includes a fork body 31, a crystal assembly 32, and a connecting body 33.
  • An output end of the crystal assembly 32 is connected to the circuit portion 2, the circuit portion 2 is disposed in the housing 1, the fork body 31 is connected to the connecting body 33, and the crystal assembly 32 is located at the
  • the inside of the fork body 31 is an integrally formed structure.
  • the fork body 31 is formed by one casting, without welding, which reduces the influence of welding on vibration.
  • the crystal assembly 32 is composed of at least one ceramic and at least one Crystal composition.
  • the upper part of the fork body 31 is a cylindrical body, and the middle splitting fork forms two identical forks. Both forks are rod-shaped. The ends of the forks are provided with polygonal sheets, and the total height of the fork bodies is not more than 50mm.
  • the fork body 31 is sanitary stainless steel, and has a mini structure design, which can be used in the food grade industry.
  • the housing 1 is in the form of a cylinder.
  • the housing comprises an upper cover 11 and a lower cover 12.
  • the lower cover is provided with two card slots, the upper card slot is provided with a sealing ring, and the lower card slot is provided with a sealing pad.
  • the cover and the lower cover are sealed by an interference fit, and the lower cover 12 and the connecting body 33 are fixed by an interference fit, and the upper cover 11 is provided with a display cover for displaying power and output states for learning and parameters.
  • a set button and a connector are provided on the side of the upper cover for connecting an external cable.
  • the circuit part 2 includes a signal processing circuit 110, an MCU control unit 111, an output circuit 112, a display circuit 114, an operating parameter setting circuit 111, a driving circuit 117, and a power supply, and the signal processing circuit 110 and the MCU control unit 111,
  • the vibrator 3 and the power source 115 are connected, and the MCU control unit 111 is connected to the display circuit 114, the operating parameter setting circuit 113, and the output circuit 112, and the vibrator 3 is also connected to the driving circuit 117.
  • the operating parameter setting circuit 113 includes a button for implementing a learning function and a setting output mode of the MCU control unit 111, and the output mode of the output circuit 112 is an NPN, a PNP or a relay output.
  • the learning function of the MCU control unit 111 can realize measurement of various media such as powder, solid particles, liquid, etc.
  • the setting output mode function of the MCU control unit 111 can set various output modes of NPN, PNP and relay to meet different functions. way to control.
  • the level switch of the present invention can be applied to any medium by the learning function of the MCU control unit 111.
  • the MCU control unit also has a setting function that can be set to meet different control methods.
  • An input of the signal processing circuit 110 is coupled to the output of the vibrator 2 for converting the vibration signal into a signal detectable by the MCU control unit 111 and providing an input signal to the drive circuit 117.
  • the crystal assembly 21 transmits the vibration frequency signal of the fork body 20 to the signal processing circuit 110 through the cable, and is converted by the signal processing circuit 110.
  • the signal processing circuit 110 simultaneously produces an output signal 117 based on the input signal.
  • An input terminal of the drive circuit is coupled to an output of the signal processing circuit 110 and outputs a signal to the vibrator 2.
  • the drive circuit is responsible for converting the signal input from the signal processing circuit 110 into a drive signal.
  • An input terminal of the MCU control unit 111 is connected to an output terminal of the signal processing circuit 110, and outputs a signal to the output circuit 112.
  • the vibration frequency of the fork body 20 in the medium can be learned by setting the button 116, stored in the MCU control unit 111, and used as a reference for outputting the output circuit 112, so that the micro smart tuning fork level switch can be applied to any medium.
  • the above learning state can be displayed by the indicator light on the control panel being turned off twice, that is, the MCU control unit 111 outputs a signal to the display circuit 114. After the end of the study, the user can judge whether the learning is successful according to the indicator light.
  • the upper end of the connecting body 33 is provided with a cylindrical stepped surface 3301, and the lower part of the cylindrical stepped surface 3301 is provided with a seal.
  • the ring is fixed under the interference fit of the connecting body and the shell, the middle portion of the connecting body is a cylindrical surface 3302, and two corresponding wrench slots 3303 are arranged on both sides of the cylindrical surface 3302, the lower part of the connecting body It has a section of thread 3304.
  • This design is convenient for customers to install and use. As long as the user installs the matching chuck or insert on the tank to be tested, it only needs to get the wrench to clamp the plane of the back end and it can be conveniently loaded and unloaded.
  • a miniature smart tuning fork type level gauge is different in that the structure of the connecting body is different.
  • the upper end of the connecting body of the embodiment is provided with a cylindrical stepped surface 3301.
  • the lower part of the cylindrical stepped surface 3301 is provided with a sealing ring.
  • the sealing ring is fixed under the interference fit of the connecting body and the housing, and the lower part of the sealing ring is provided.
  • a cylindrical surface 2305 There is a cylindrical surface 2305, a cylindrical surface 3302 is arranged below the cylindrical surface 3305, the diameter of the cylindrical surface 3302 is larger than the diameter of the cylindrical surface 3305, and the cylindrical surface is provided on both sides of the 3302
  • Two corresponding wrench slots 3303 a lower portion of the connecting body is provided with a thread 3304, the thread 3304 is connected with an adapter 34, the upper end of the thread 3304 is provided with a card slot, and the lower end of the screw is provided with a step, the card A gasket 31 and a gasket 2 36 are respectively disposed on the groove and the step.
  • the middle section of a cylindrical surface 2305 can increase the heat dissipation function of the connecting body, and can be used to install the adapter 34, which can reach the food hygiene level.
  • the adapter 34 includes at least two adapters, a welding adapter and a chuck adapter, but is not limited to these two methods.
  • the present invention provides a miniature intelligent tuning fork type level gauge, which adopts an integral molding design, has a compact structure and high reliability, and can measure various media such as powder, solid particles, liquid, etc., has high sensitivity and various types.
  • the output mode adopts interference fit and non-filled structure, the protection grade can reach IP68 and IP69K, the process is simple, the installation and maintenance are convenient, and the adapter can also meet the special industries such as medical and health. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

A miniature intelligent tuning fork-type level gauge, comprising: a housing (1), a vibrator (3) and a circuit portion (2); the vibrator (3) comprises a fork body (31), a crystal assembly (32) and a connecting body (33); an output end of the crystal assembly (32) is connected to the circuit portion (2), the circuit portion (2) being disposed within the housing (1); the fork body (31) is connected to the connector (33), while the crystal assembly (32) is located at an inner part the fork body (31), the fork body (31) being an integrally formed structure. The fork body (31) is compact in structure, is highly reliable, and may measure various media such as powders, solid particles, liquids, and the like, while having high sensitivity and various output modes; the present invention uses an interference fit and unfilled structure, and the protection grade thereof may reach IP68 and IP69K ratings, while having a simple manufacturing process and being convenient to install and maintain; said invention may also be used in special industries, such as health care and the like, when used in conjunction with an adapter.

Description

微型智能音叉式物位计Micro intelligent tuning fork level meter 技术领域Technical field
本发明涉及仪器仪表行业中介质监控仪表领域，尤其涉及一种微型智能音叉式物位计。The invention relates to the field of medium monitoring instruments in the instrument and meter industry, in particular to a miniature intelligent tuning fork type level meter.
背景技术Background technique
在物位仪表技术领域中，音叉式物位计主要应用在物料料仓的料位及液位控制或上、下限位报警。音叉式物位开关是利用物料对音叉振动的阻尼作用及压电效应的原理进行设计的，其传感部分由音叉构成，以固定的振动频率和振幅振动，当音叉受到物料阻尼作用时，音叉停止振动，由检测电路检测出这一变化，传送给驱动电路，发出开关信号，来达到控制物位的目的。In the field of level meter technology, the tuning fork level meter is mainly used in the material level and liquid level control of the material silo or the upper and lower limit alarms. The tuning fork type level switch is designed by the principle of damping the vibration of the tuning fork and the piezoelectric effect. The sensing part is composed of a tuning fork and vibrates with a fixed vibration frequency and amplitude. When the tuning fork is subjected to material damping, the tuning fork The vibration is stopped, and the change is detected by the detecting circuit, transmitted to the driving circuit, and a switching signal is issued to achieve the purpose of controlling the level.
传统的音叉式物位计大多是采用模拟电路来判断叉体是否停振，并输出相应的开关信号，这样就会产生误报警的问题，而且输出方式单一、成本高、外形笨重、工艺复杂，安装维护不方便。The traditional tuning fork type level meter mostly uses analog circuit to judge whether the fork body stops vibration and outputs the corresponding switching signal, which will cause the problem of false alarm, and the output mode is single, the cost is high, the shape is cumbersome, and the process is complicated. Installation and maintenance is not convenient.
CN201514255U提供了一种强振智能型音叉式物位计，包括探测片振动器和壳体，其中壳体内设置有信号处理电路、MCU控制单元以及输出电路。探测片振动器的输出端连接至信号处理电路的输入端，信号处理电路的输出端连接至MCU控制单元的输入端，MCU控制单元输出信号给输出电路。本发明提供的强振智能型音叉式物位计采用智能控制电路，通过MCU控制单元的学习功能和设定功能，可以使本发明的物位计适用于任何介质，且可以设定4级不同的灵敏度，使得物位计适用于液位波动较大的场合，有效的避免开关误动作。该物位计开关叉体较长，不仅无法应用在一些小管径场合，而且也无法满足医疗卫生行业的安装和性能等要求。CN201514255U provides a strong vibration intelligent tuning fork type level gauge, comprising a detecting piece vibrator and a casing, wherein a signal processing circuit, an MCU control unit and an output circuit are arranged in the casing. The output end of the probe vibrator is connected to the input end of the signal processing circuit, the output end of the signal processing circuit is connected to the input end of the MCU control unit, and the MCU control unit outputs a signal to the output circuit. The strong vibration intelligent tuning fork type level gauge provided by the invention adopts an intelligent control circuit, and the leveling device of the invention can be applied to any medium through the learning function and the setting function of the MCU control unit, and can be set to be different in level 4 The sensitivity makes the level meter suitable for occasions where the liquid level fluctuates greatly, effectively avoiding switch malfunction. The level gauge switch fork body is long, not only can not be applied to some small pipe diameter occasions, but also can not meet the requirements of the installation and performance of the medical and health industry.
发明内容Summary of the invention
鉴于以上所述现有技术的缺点，本发明目的在于提供一种微型智能音叉式物位计，灵敏度高，输出方式多样，可以满足医疗卫生行业使用的微型化智能型音叉式物位计。In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a miniature intelligent tuning fork type level gauge with high sensitivity and various output modes, which can meet the miniaturized intelligent tuning fork type level gauge used in the medical and health industry.
为实现上述目的及其他相关目的，本发明提供的微型智能音叉式物位计，包括壳体、振动器、电路部分，所述振动器包括叉体、晶体组件、连接体，所述晶体组件的输出端与所述电路部分连接，所述电路部分设置在所述壳体内，所述叉体与所述连接体连接，所述晶体组件位于所述叉体的内部，所述叉体为一体成型结构。To achieve the above and other related objects, the present invention provides a miniature smart tuning fork level gauge including a housing, a vibrator, and a circuit portion, the vibrator including a fork body, a crystal assembly, and a connecting body, the crystal assembly The output end is connected to the circuit portion, the circuit portion is disposed in the housing, the fork body is connected to the connecting body, the crystal assembly is located inside the fork body, and the fork body is integrally formed structure.
优选的，所述叉体上部为圆柱体，中部开叉形成两相同的支叉，两支叉均为杆状或圆柱 状，所述叉体的总高度不大于50mm。该叉体为卫生级不锈钢，迷你型结构设计，可实用于食品级行业。Preferably, the upper part of the fork body is a cylinder, and the middle part of the fork body forms two identical branches, and both forks are rod-shaped or cylindrical. In a shape, the total height of the fork body is not more than 50 mm. The fork body is hygienic stainless steel, and the mini structure design can be used in the food grade industry.
优选地，所述支叉的端部设有多边形片状或水滴形渐进片状结构。Preferably, the end of the branch is provided with a polygonal sheet or a teardrop-shaped progressive sheet structure.
优选地，所述壳体呈圆柱体，所述壳体包含上盖、下盖，所述壳体呈圆柱体，所述壳体包含上盖、下盖，所述下盖设有2个卡槽，上部卡槽设有密封圈，下部卡槽设有密封垫，所述上盖与下盖通过过盈配合密封，所述下盖与所述连接体通过过盈配合固定，所述上盖设有用于显示电源和输出状态的显示罩、用于进行学习和参数设定的按键和接插件，所述接插件设置在上盖的侧面，用于连接外部电缆。Preferably, the casing is a cylinder, the casing comprises an upper cover and a lower cover, the casing is a cylinder, the casing comprises an upper cover and a lower cover, and the lower cover is provided with two cards. a slot, the upper card slot is provided with a sealing ring, the lower card slot is provided with a sealing pad, the upper cover and the lower cover are sealed by an interference fit, and the lower cover and the connecting body are fixed by an interference fit, the upper cover A display cover for displaying power and output status, buttons and connectors for learning and parameter setting are provided, and the connectors are disposed on the side of the upper cover for connecting external cables.
优选地，所述电路部分包括信号处理电路、MCU控制单元、输出电路、显示电路、工作参数设置电路、驱动电路以及电源，所述信号处理电路与所述MCU控制单元、振动器、电源连接，所述MCU控制单元与所述显示电路、工作参数设置电路、输出电路连接，所述振动器还与所述驱动电路连接。Preferably, the circuit portion includes a signal processing circuit, an MCU control unit, an output circuit, a display circuit, an operating parameter setting circuit, a driving circuit, and a power source, and the signal processing circuit is connected to the MCU control unit, the vibrator, and the power source. The MCU control unit is connected to the display circuit, the operating parameter setting circuit, and the output circuit, and the vibrator is further connected to the driving circuit.
优选的，所述工作参数设置电路包括一用于实现MCU控制单元的学习功能和设定输出方式的按键，所述输出电路的输出方式为NPN、PNP或继电器输出。MCU控制单元的学习功能，可以实现粉末、固体颗粒、液体等多种介质测量，MCU控制单元的设定输出方式功能，可以设定NPN、PNP、继电器多种输出方式，以满足不同的控制方式。Preferably, the operating parameter setting circuit includes a button for implementing a learning function of the MCU control unit and a setting output mode, and the output mode of the output circuit is an NPN, a PNP or a relay output. The learning function of the MCU control unit can realize measurement of various media such as powder, solid particles and liquid. The output mode function of the MCU control unit can set various output modes of NPN, PNP and relay to meet different control modes. .
优选的，所述晶体组件由至少一个陶瓷和至少一个晶振组成。Preferably, the crystal assembly is composed of at least one ceramic and at least one crystal.
优选的，所述连接体的上端设有一个圆柱台阶面，所述圆柱台阶面下部设置有密封圈，该密封圈在连接体和壳体过盈配合作用下固定，连接体的中部为圆柱面一，圆柱面一的两侧设有两个对应的扳手卡槽，连接体的下部设有一段螺纹。Preferably, the upper end of the connecting body is provided with a cylindrical stepped surface, and the lower part of the cylindrical stepped surface is provided with a sealing ring, and the sealing ring is fixed under the interference fit of the connecting body and the shell, and the middle part of the connecting body is a cylindrical surface. First, two corresponding wrench slots are provided on both sides of the cylindrical surface, and a lower portion of the connecting body is provided with a thread.
优选的，所述连接体上端设有一个圆柱台阶面，所述圆柱台阶面下部设置有密封圈，该密封圈在连接体和壳体过盈配合作用下固定，所述密封圈的下方设有一段圆柱面二，所述圆柱面二的下方设有一段圆柱面一，所述圆柱面一的直径大于所述圆柱面二的直径，圆柱面一的两侧设有两个对应的扳手卡槽，连接体的下部设有一段螺纹，所述螺纹与一适配器连接，所述螺纹的上端设有卡槽，螺丝的下端设有台阶，所述卡槽和台阶上分别设有密封垫一和密封垫二。中间设置一段凹陷圆柱面可以增加连接体的散热功能，实用于安装适配器，可以达到食品卫生级等级。Preferably, the upper end of the connecting body is provided with a cylindrical stepped surface, and a lower part of the cylindrical stepped surface is provided with a sealing ring, and the sealing ring is fixed under the interference fit of the connecting body and the casing, and the lower side of the sealing ring is provided a cylindrical surface 2, a cylindrical surface is provided below the cylindrical surface 2, the diameter of the cylindrical surface 1 is larger than the diameter of the cylindrical surface 2, and two corresponding wrench slots are provided on both sides of the cylindrical surface The lower part of the connecting body is provided with a thread, the thread is connected with an adapter, the upper end of the thread is provided with a card slot, the lower end of the screw is provided with a step, and the card slot and the step are respectively provided with a sealing pad and a sealing Pad two. The provision of a concave cylindrical surface in the middle can increase the heat dissipation function of the connecting body, and can be used to install the adapter, which can reach the food hygiene level.
优选的，所述适配器为焊接适配器或卡盘适配器，适配器至少包含焊接适配器和卡盘适配器两种方式的适配器。Preferably, the adapter is a solder adapter or a chuck adapter, and the adapter includes at least an adapter of a solder adapter and a chuck adapter.
如上所述，本发明提供的微型智能音叉式物位计，具有以下有益效果：该叉体采用一体 成型设计，结构小巧，可靠性高，可以测量粉末、固体颗粒、液体等多种介质，灵敏度高，具有多种输出方式，采用过盈配合不灌封结构，防护等级可达IP68和IP69K，工艺简单、安装维护方便，配合适配器还可以满足医疗卫生等特殊行业使用。As described above, the micro smart tuning fork type level gauge provided by the present invention has the following beneficial effects: the fork body is integrated Molding design, compact structure, high reliability, can measure powder, solid particles, liquid and other media, high sensitivity, with a variety of output methods, using interference fit with non-encapsulated structure, protection grade up to IP68 and IP69K, process Simple, easy to install and maintain, with adapters to meet the needs of special industries such as health care.
附图说明DRAWINGS
图1为微型化智能型音叉式物位计的原理框图。Figure 1 is a block diagram of the miniaturized intelligent tuning fork level gauge.
图2为微型化智能型音叉式物位计的一种具体实施例的结构示意图。2 is a schematic structural view of a specific embodiment of a miniaturized intelligent tuning fork type level gauge.
图3为微型化智能型音叉式物位计的另一种具体实施例的结构示意图。3 is a schematic structural view of another embodiment of a miniaturized smart tuning fork level gauge.
其中：1.壳体；11.上盖；12.下盖；13.接插件；14.显示罩；15.按键；2.电路部分；3.振动器；31.叉体；32.晶体组件；33.连接体；34.适配器；35.密封垫一；36.密封垫二；110.信号处理电路；111.MCU控制单元；112.输出电路；113.工作参数设置电路；114.显示电路；115.电源；117.驱动电路；3301.圆柱台阶面；3302.圆柱面一；3303扳手卡槽；3304.螺纹；3305.圆柱面二。Wherein: 1. housing; 11. upper cover; 12. lower cover; 13. connector; 14. display cover; 15. button; 2. circuit portion; 3. vibrator; 31. fork body; 33. Connector; 34. Adapter; 35. Seal 1; 36. Seal 2; 110. Signal Processing Circuit; 111. MCU Control Unit; 112. Output Circuit; 113. Operating Parameter Setting Circuit; 115. Power supply; 117. Drive circuit; 3301. Cylindrical step surface; 3302. Cylindrical surface 1; 3303 wrench card slot; 3304. Thread; 3305. Cylindrical surface 2.
具体实施方式detailed description
以下由特定的具体实施例说明本发明的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效。The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily understand other advantages and functions of the present invention from the disclosure.
请参阅图1至图3。须知，本说明书所附图式所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落在本发明所揭示的技术内容得能涵盖的范围内。同时，本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语，亦仅为便于叙述的明了，而非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本发明可实施的范畴。Please refer to Figure 1 to Figure 3. It should be understood that the structures, the proportions, the sizes, and the like, which are illustrated in the specification of the present specification, are only used to clarify the contents disclosed in the specification for understanding and reading by those skilled in the art, and are not intended to limit the implementation of the present invention. The conditions are limited, so it is not technically meaningful. Any modification of the structure, change of the proportional relationship or adjustment of the size should remain in the present invention without affecting the effects and the achievable purposes of the present invention. The disclosed technical content is within the scope of the disclosure. In the meantime, the terms "upper", "lower", "left", "right", "intermediate" and "one" as used in this specification are also for convenience of description, and are not intended to limit the present. The scope of the invention can be implemented, and the change or adjustment of the relative relationship is considered to be within the scope of the invention.
具体实施例一： Embodiment 1
如图1、图2所示，一种微型智能音叉式物位计，包括壳体1、振动器3、电路部分2，所述振动器3包括叉体31、晶体组件32、连接体33，所述晶体组件32的输出端与所述电路部分2连接，所述电路部分2设置在所述壳体1内，所述叉体31与所述连接体33连接，所述晶体组件32位于所述叉体31的内部，所述叉体31为一体成型结构。叉体31为一次铸造成型，不用焊接，减少了焊接对振动的影响。所述晶体组件32由至少一个陶瓷和至少一个 晶振组成。As shown in FIG. 1 and FIG. 2, a miniature smart tuning fork type level gauge includes a housing 1, a vibrator 3, and a circuit portion 2. The vibrator 3 includes a fork body 31, a crystal assembly 32, and a connecting body 33. An output end of the crystal assembly 32 is connected to the circuit portion 2, the circuit portion 2 is disposed in the housing 1, the fork body 31 is connected to the connecting body 33, and the crystal assembly 32 is located at the The inside of the fork body 31 is an integrally formed structure. The fork body 31 is formed by one casting, without welding, which reduces the influence of welding on vibration. The crystal assembly 32 is composed of at least one ceramic and at least one Crystal composition.
所述叉体31上部为圆柱体，中部开叉形成两相同的支叉，两支叉均为杆状，所述支叉的端部设有多边形片状，所述叉体的总高度不大于50mm。该叉体31为卫生级不锈钢，迷你型结构设计，可实用于食品级行业。The upper part of the fork body 31 is a cylindrical body, and the middle splitting fork forms two identical forks. Both forks are rod-shaped. The ends of the forks are provided with polygonal sheets, and the total height of the fork bodies is not more than 50mm. The fork body 31 is sanitary stainless steel, and has a mini structure design, which can be used in the food grade industry.
所述壳体1呈圆柱体，所述壳体包含上盖11、下盖12，所述下盖设有2个卡槽，上部卡槽设有密封圈，下部卡槽设有密封垫，上盖与下盖通过过盈配合密封，所述下盖12与所述连接体33通过过盈配合固定，所述上盖11设有用于显示电源和输出状态的显示罩、用于进行学习和参数设定的按键和接插件，所述接插件设置在上盖的侧面，用于连接外部电缆。The housing 1 is in the form of a cylinder. The housing comprises an upper cover 11 and a lower cover 12. The lower cover is provided with two card slots, the upper card slot is provided with a sealing ring, and the lower card slot is provided with a sealing pad. The cover and the lower cover are sealed by an interference fit, and the lower cover 12 and the connecting body 33 are fixed by an interference fit, and the upper cover 11 is provided with a display cover for displaying power and output states for learning and parameters. A set button and a connector are provided on the side of the upper cover for connecting an external cable.
所述电路部分2包括信号处理电路110、MCU控制单元111、输出电路112、显示电路114、工作参数设置电路111、驱动电路117以及电源，所述信号处理电路110与所述MCU控制单元111、振动器3、电源115连接，所述MCU控制单元111与所述显示电路114、工作参数设置电路113、输出电路112连接，所述振动器3还与所述驱动电路117连接。The circuit part 2 includes a signal processing circuit 110, an MCU control unit 111, an output circuit 112, a display circuit 114, an operating parameter setting circuit 111, a driving circuit 117, and a power supply, and the signal processing circuit 110 and the MCU control unit 111, The vibrator 3 and the power source 115 are connected, and the MCU control unit 111 is connected to the display circuit 114, the operating parameter setting circuit 113, and the output circuit 112, and the vibrator 3 is also connected to the driving circuit 117.
所述工作参数设置电路113包括一用于实现MCU控制单元111的学习功能和设定输出方式的按键，所述输出电路112的输出方式为NPN、PNP或继电器输出。MCU控制单元111的学习功能，可以实现粉末、固体颗粒、液体等多种介质测量，MCU控制单元111的设定输出方式功能，可以设定NPN、PNP、继电器多种输出方式，以满足不同的控制方式。The operating parameter setting circuit 113 includes a button for implementing a learning function and a setting output mode of the MCU control unit 111, and the output mode of the output circuit 112 is an NPN, a PNP or a relay output. The learning function of the MCU control unit 111 can realize measurement of various media such as powder, solid particles, liquid, etc. The setting output mode function of the MCU control unit 111 can set various output modes of NPN, PNP and relay to meet different functions. way to control.
通过MCU控制单元111的学习功能，可以使本发明的物位开关适用于任何介质。另外，MCU控制单元还具有设定功能，可以设定输出方式，以满足不同的控制方式。The level switch of the present invention can be applied to any medium by the learning function of the MCU control unit 111. In addition, the MCU control unit also has a setting function that can be set to meet different control methods.
信号处理电路110的输入端连接至振动器2的输出端，用以将振动信号转换为MCU控制单元111可以检测的信号，并且为驱动电路117提供输入信号。具体来说，晶体组件21将叉体20的振动频率信号通过电缆传送给信号处理电路110，并由信号处理电路110进行转换。信号处理电路110同时根据输入信号产生输出信号给117。An input of the signal processing circuit 110 is coupled to the output of the vibrator 2 for converting the vibration signal into a signal detectable by the MCU control unit 111 and providing an input signal to the drive circuit 117. Specifically, the crystal assembly 21 transmits the vibration frequency signal of the fork body 20 to the signal processing circuit 110 through the cable, and is converted by the signal processing circuit 110. The signal processing circuit 110 simultaneously produces an output signal 117 based on the input signal.
驱动电路的输入端连接信号处理电路110的一个输出端，并输出信号给振动器2。驱动电路负责把信号处理电路110输入的信号转换为驱动信号。MCU控制单元111的输入端连接信号处理电路110的一个输出端，并输出信号给输出电路112。An input terminal of the drive circuit is coupled to an output of the signal processing circuit 110 and outputs a signal to the vibrator 2. The drive circuit is responsible for converting the signal input from the signal processing circuit 110 into a drive signal. An input terminal of the MCU control unit 111 is connected to an output terminal of the signal processing circuit 110, and outputs a signal to the output circuit 112.
通过设定按钮116可以学习叉体20在介质中的振动频率，存储在MCU控制单元111中，并作为输出电路112是否输出的基准，这样就可以使微型智能音叉物位开关适用于任何介质。上述学习状态可以通过控制面板上的指示灯亮灭两次来显示，即MCU控制单元111输出信号给显示电路114。在学习结束之后，使用者可以根据指示灯来判断学习是否成功。The vibration frequency of the fork body 20 in the medium can be learned by setting the button 116, stored in the MCU control unit 111, and used as a reference for outputting the output circuit 112, so that the micro smart tuning fork level switch can be applied to any medium. The above learning state can be displayed by the indicator light on the control panel being turned off twice, that is, the MCU control unit 111 outputs a signal to the display circuit 114. After the end of the study, the user can judge whether the learning is successful according to the indicator light.
所述连接体33的上端设有一个圆柱台阶面3301，所述圆柱台阶面3301下部设置有密封 圈，该密封圈在连接体和壳体过盈配合作用下固定，连接体的中部为圆柱面一3302，圆柱面一3302的两侧设有两个对应的扳手卡槽3303，连接体的下部设有一段螺纹3304，这种设计方便客户安装使用，只要用户在待测的料罐上装好配套的卡盘或镶件之后，只需要拿扳手卡住后端的平面就可以很方便的装卸。The upper end of the connecting body 33 is provided with a cylindrical stepped surface 3301, and the lower part of the cylindrical stepped surface 3301 is provided with a seal. The ring is fixed under the interference fit of the connecting body and the shell, the middle portion of the connecting body is a cylindrical surface 3302, and two corresponding wrench slots 3303 are arranged on both sides of the cylindrical surface 3302, the lower part of the connecting body It has a section of thread 3304. This design is convenient for customers to install and use. As long as the user installs the matching chuck or insert on the tank to be tested, it only needs to get the wrench to clamp the plane of the back end and it can be conveniently loaded and unloaded.
具体实施例二：Specific embodiment 2:
如图1、图3所示，一种微型智能音叉式物位计，本实施例除了具备实施例一的全部特点外，不同之处在于其连接体的结构不同。本实施例的连接体上端设有一个圆柱台阶面3301，所述圆柱台阶面3301下部设置有密封圈，该密封圈在连接体和壳体过盈配合作用下固定，所述密封圈的下方设有一段圆柱面二3305，所述圆柱面二3305的下方设有一段圆柱面一3302，所述圆柱面一3302的直径大于所述圆柱面二3305的直径，圆柱面一3302的两侧设有两个对应的扳手卡槽3303，连接体的下部设有一段螺纹3304，所述螺纹3304与一适配器34连接，所述螺纹3304的上端设有卡槽，螺丝的下端设有台阶，所述卡槽和台阶上分别设有密封垫一31和密封垫二36。中间设置一段圆柱面二3305可以增加连接体的散热功能，实用于安装适配器34，可以达到食品卫生级等级。所述适配器34至少包含焊接适配器和卡盘适配器两种方式的适配器，但不局限于这两种方式。As shown in FIG. 1 and FIG. 3, a miniature smart tuning fork type level gauge, except for having all the features of the first embodiment, is different in that the structure of the connecting body is different. The upper end of the connecting body of the embodiment is provided with a cylindrical stepped surface 3301. The lower part of the cylindrical stepped surface 3301 is provided with a sealing ring. The sealing ring is fixed under the interference fit of the connecting body and the housing, and the lower part of the sealing ring is provided. There is a cylindrical surface 2305, a cylindrical surface 3302 is arranged below the cylindrical surface 3305, the diameter of the cylindrical surface 3302 is larger than the diameter of the cylindrical surface 3305, and the cylindrical surface is provided on both sides of the 3302 Two corresponding wrench slots 3303, a lower portion of the connecting body is provided with a thread 3304, the thread 3304 is connected with an adapter 34, the upper end of the thread 3304 is provided with a card slot, and the lower end of the screw is provided with a step, the card A gasket 31 and a gasket 2 36 are respectively disposed on the groove and the step. The middle section of a cylindrical surface 2305 can increase the heat dissipation function of the connecting body, and can be used to install the adapter 34, which can reach the food hygiene level. The adapter 34 includes at least two adapters, a welding adapter and a chuck adapter, but is not limited to these two methods.
综上所述，本发明提供微型智能音叉式物位计，该叉体采用一体成型设计，结构小巧，可靠性高，可以测量粉末、固体颗粒、液体等多种介质，灵敏度高，具有多种输出方式，采用过盈配合不灌封结构，防护等级可达IP68和IP69K，工艺简单、安装维护方便，配合适配器还可以满足医疗卫生等特殊行业使用。所以，本发明有效克服了现有技术中的种种缺点而具高度产业利用价值。In summary, the present invention provides a miniature intelligent tuning fork type level gauge, which adopts an integral molding design, has a compact structure and high reliability, and can measure various media such as powder, solid particles, liquid, etc., has high sensitivity and various types. The output mode adopts interference fit and non-filled structure, the protection grade can reach IP68 and IP69K, the process is simple, the installation and maintenance are convenient, and the adapter can also meet the special industries such as medical and health. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。 The above-described embodiments are merely illustrative of the principles of the invention and its effects, and are not intended to limit the invention. Modifications or variations of the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and scope of the invention will be covered by the appended claims.

Claims (10)

  1. 一种微型智能音叉式物位计，其特征在于，包括壳体、振动器、电路部分，所述振动器包括叉体、晶体组件、连接体，所述晶体组件的输出端与所述电路部分连接，所述电路部分设置在所述壳体内，所述叉体与所述连接体连接，所述晶体组件位于所述叉体的内部，所述叉体为一体成型结构。A miniature intelligent tuning fork type level gauge, comprising: a housing, a vibrator, a circuit portion, the vibrator comprising a fork body, a crystal assembly, a connecting body, an output end of the crystal assembly and the circuit portion The circuit portion is disposed in the housing, the fork body is coupled to the connecting body, the crystal assembly is located inside the fork body, and the fork body is an integrally formed structure.
  2. 根据权利要求1所述的微型智能音叉式物位计，其特征在于，所述叉体上部为圆柱体，中部开叉形成两相同的支叉，两支叉均为杆状或圆柱状，所述叉体的总高度不大于50mm。The micro smart tuning fork type level gauge according to claim 1, wherein the upper portion of the fork body is a cylinder, and the middle fork is formed into two identical branches, and both forks are rod-shaped or cylindrical. The total height of the fork body is not more than 50 mm.
  3. 根据权利要求2所述的微型智能音叉式物位计，其特征在于，所述支叉的端部设有多边形片状或水滴形渐进片状结构。The miniature smart tuning fork type level gauge according to claim 2, wherein the end of the branch is provided with a polygonal sheet shape or a teardrop-shaped progressive sheet structure.
  4. 根据权利要求3所述的微型智能音叉式物位计，其特征在于，所述壳体呈圆柱体，所述壳体包含上盖、下盖，所述下盖设有2个卡槽，上部卡槽设有密封圈，下部卡槽设有密封垫，所述上盖与下盖通过过盈配合密封，所述下盖与所述连接体通过过盈配合固定，所述上盖设有用于显示电源和输出状态的显示罩、用于进行学习和参数设定的按键和接插件，所述接插件设置在上盖的侧面，用于连接外部电缆。The micro smart tuning fork type level gauge according to claim 3, wherein the housing is a cylinder, the housing comprises an upper cover and a lower cover, and the lower cover is provided with two card slots, and the upper cover The card slot is provided with a sealing ring, the lower card slot is provided with a sealing pad, the upper cover and the lower cover are sealed by an interference fit, and the lower cover and the connecting body are fixed by an interference fit, and the upper cover is provided for A display cover that displays power and output status, buttons and connectors for learning and parameter setting, and the connectors are placed on the side of the upper cover for connecting external cables.
  5. 根据权利要求4所述的微型智能音叉式物位计，其特征在于，所述电路部分包括信号处理电路、MCU控制单元、输出电路、显示电路、工作参数设置电路、驱动电路以及电源，所述信号处理电路与所述MCU控制单元、振动器、电源连接，所述MCU控制单元与所述显示电路、工作参数设置电路、输出电路连接，所述振动器还与所述驱动电路连接。The micro smart tuning fork level level gauge according to claim 4, wherein the circuit portion comprises a signal processing circuit, an MCU control unit, an output circuit, a display circuit, an operating parameter setting circuit, a driving circuit, and a power source, The signal processing circuit is connected to the MCU control unit, the vibrator, and the power source, and the MCU control unit is connected to the display circuit, the operating parameter setting circuit, and the output circuit, and the vibrator is further connected to the driving circuit.
  6. 根据权利要求5所述的微型智能音叉式物位计，其特征在于，所述工作参数设置电路包括一用于实现MCU控制单元的学习功能和设定输出方式的按键，所述输出电路的输出方式为NPN、PNP或继电器输出。The micro smart tuning fork type level gauge according to claim 5, wherein the operating parameter setting circuit comprises a button for realizing a learning function of the MCU control unit and a setting output mode, and an output of the output circuit The mode is NPN, PNP or relay output.
  7. 根据权利要求1所述的微型智能音叉式物位计，其特征在于，所述晶体组件由至少一个陶瓷和至少一个晶振组成。A miniature smart tuning fork level gauge according to claim 1 wherein said crystal assembly is comprised of at least one ceramic and at least one crystal.
  8. 根据权利要求1所述的微型智能音叉式物位计，其特征在于，所述连接体的上端设有一个圆柱台阶面，所述圆柱台阶面下部设置有密封圈，该密封圈在连接体和壳体过盈配合作用下固定，连接体的中部为圆柱面一，圆柱面一的两侧设有两个对应的扳手卡槽，连接体的下部设有一段螺纹。The micro smart tuning fork type level gauge according to claim 1, wherein the upper end of the connecting body is provided with a cylindrical stepped surface, and the lower part of the cylindrical stepped surface is provided with a sealing ring, the sealing ring is in the connecting body and The housing is fixed under the interference fit, and the middle portion of the connecting body is a cylindrical surface. Two corresponding wrench slots are provided on both sides of the cylindrical surface, and a lower portion of the connecting body is provided with a thread.
  9. 根据权利要求1所述的微型智能音叉式物位计，其特征在于，所述连接体上端设有一个圆柱台阶面，所述圆柱台阶面下部设置有密封圈，该密封圈在连接体和壳体过盈配合作用下固定，所述密封圈的下方设有一段圆柱面二，所述圆柱面二的下方设有一段圆柱面 一，所述圆柱面一的直径大于所述圆柱面二的直径，圆柱面一的两侧设有两个对应的扳手卡槽，连接体的下部设有一段螺纹，所述螺纹与一适配器连接，所述螺纹的上端设有卡槽，螺丝的下端设有台阶，所述卡槽和台阶上分别设有密封垫一和密封垫二。The micro smart tuning fork type level gauge according to claim 1, wherein the upper end of the connecting body is provided with a cylindrical stepped surface, and the lower part of the cylindrical stepped surface is provided with a sealing ring, the sealing ring is in the connecting body and the shell. Fixed by a body interference fit, a cylindrical surface 2 is disposed below the sealing ring, and a cylindrical surface is disposed below the cylindrical surface 2 1. The diameter of the cylindrical surface 1 is larger than the diameter of the cylindrical surface 2. The two sides of the cylindrical surface are provided with two corresponding wrench slots, and the lower portion of the connecting body is provided with a thread, and the thread is connected with an adapter. The upper end of the thread is provided with a card slot, the lower end of the screw is provided with a step, and the card slot and the step are respectively provided with a sealing pad 1 and a sealing pad 2.
  10. 根据权利要求9所述的微型智能音叉式物位计，其特征在于，所述适配器为焊接适配器或卡盘适配器。 A miniature smart tuning fork level gauge according to claim 9 wherein the adapter is a welding adapter or a chuck adapter.
PCT/CN2017/083536 2017-04-01 2017-05-09 Miniature intelligent tuning fork-type level gauge WO2018176579A1 (en)

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