Detection device for capacitance liquid level sensor

Abstract

The invention belongs to the field of detection equipment, and particularly relates to a detection device for a capacitance liquid level sensor, which comprises a mounting plate, a pair of symmetrically arranged sliding grooves are formed in the mounting plate, sliding rods are slidably connected in the pair of sliding grooves, one end of each sliding rod is fixedly connected with a limiting plate, and the other end of each sliding rod is fixedly connected with a fixing plate. A detection tank is fixedly connected to the bottom of the mounting plate, a driving assembly is mounted at the other end of each sliding rod, and the driving assembly is used for driving the pair of sliding rods to slide along the pair of sliding grooves respectively; the pair of limiting plates are driven by the driving assembly to slide up and down, when the limiting plate provided with the capacitance liquid level sensor moves downwards to the bottom end of the sliding groove, the capacitance liquid level sensor is exactly inserted into the detection tank, detection is started, the other limiting plate exactly moves to the top end of the sliding groove, and the capacitance liquid level sensor is exactly inserted into the detection tank. At the moment, the operator can continue to feed, namely continue to install the capacitance liquid level sensor to be detected, and does not need to wait for the end of detection.

Description

Technical Field

[0001] The present invention belongs to the field of detection devices, and specifically relates to a detection device for a capacitive liquid level sensor. Background Art

[0002] A capacitive sensor is a conversion device that uses various types of capacitors as sensing elements to convert the measured physical quantity or mechanical quantity into a change in capacitance. Some capacitive sensors are used for liquid level detection, specifically capacitive liquid level sensors. The capacitive liquid level sensor can be connected to a container through an external pipeline, and the liquid height in the container is transferred to the capacitive liquid level sensor for indication, and the change in the liquid level in the container is measured.

[0003] After the production of the capacitive liquid level sensor is completed, it is necessary to detect its quality to ensure the accuracy of the capacitive liquid level sensor. Currently, the traditional detection method is manual detection, that is, manually placing the capacitive liquid level sensor to be detected into the detection instrument, waiting for the detection to be completed and then taking it out, and then detecting the next capacitive liquid level sensor.

[0004] In the traditional detection method, when performing detection, the general steps are that the employee first takes the capacitive liquid level sensor to be detected, then places it into the detection device, installs and fixes the capacitive liquid level sensor to be detected according to the device requirements, and then starts the detection device. The device detects the capacitive liquid level sensor. At this time, the detection device is running, and the worker does not perform other operations during the process of waiting for the detection of the capacitive liquid level sensor to be completed, which is a relatively large waste of steps for the enterprise's production and affects the production efficiency of the enterprise.

[0005] Therefore, the present invention provides a detection device for a capacitive liquid level sensor. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A detection device for a capacitive liquid level sensor according to the present invention includes a mounting plate. A pair of symmetrically arranged sliding grooves are formed inside the mounting plate. A sliding rod is slidably connected inside each of the pair of sliding grooves. The pair of sliding rods are respectively arranged at the top and bottom of the pair of sliding grooves. One end of the sliding rod is fixedly connected with a limiting plate. The central axes of the pair of limiting plates are on the same straight line. A detection tank is fixedly connected to the bottom of the mounting plate. The other end of the sliding rod is provided with a driving assembly for driving the pair of sliding rods to slide along the pair of sliding grooves respectively; The sliding groove is composed of a lifting part and a dislocation part, and the lifting part and the dislocation part are smoothly transitioned.

[0008] Preferably, the driving assembly includes a rotating belt, and a plurality of guide rollers are rotatably connected to the outside of the mounting plate. The rotating belt is arranged outside the guide rollers, and a pair of connecting assemblies are arranged outside the rotating belt. The pair of connecting assemblies are respectively connected to a pair of sliding rods.

[0009] Preferably, the connecting assembly includes a fixed block. The fixed block is fixedly connected to the end of the sliding rod. A guide rod is fixedly connected to the side of the fixed block away from the center of the mounting plate. The end of the guide rod away from the fixed block is slidably connected to an active block. The guide rod penetrates the active block. A return spring is fixedly connected between the fixed block and the active block and outside the guide rod. The active block is fixedly connected to the rotating belt.

[0010] Preferably, an installation groove is formed inside the limiting plate. A plurality of clamping plates are arranged inside the installation groove. A clamping rod is fixedly connected to the side of each clamping plate away from the center of the installation groove. An extrusion plug is fixedly connected to the end of the clamping rod away from the clamping plate. A clamping spring is fixedly connected between the clamping plate and the inner wall of the installation groove and outside the clamping rod. A clamping assembly is arranged on the side of the extrusion plug away from the clamping rod. The clamping assembly is used to drive the plurality of clamping plates to move towards each other.

[0011] Preferably, the clamping assembly includes an oil storage groove formed inside the limiting plate. A plurality of sliding grooves are formed inside the limiting plate and on the side of the oil storage groove close to the installation groove. The plurality of sliding grooves correspond to the extrusion plugs one by one, and the extrusion plugs are slidably connected inside the sliding grooves. Extension plates are fixedly connected to the sides of the pair of limiting plates close to each other. An extrusion groove is formed inside the extension plate and is communicated with the oil storage groove. An extrusion rod is slidably connected inside the extrusion groove. An extrusion assembly is arranged outside the extrusion rod. The extrusion assembly is used to drive the extrusion rod to slide inside the extrusion groove.

[0012] Preferably, the extrusion assembly includes an angled pressing block. The end of the extrusion rod away from the oil storage groove is fixedly connected to the angled pressing block. The angled pressing block is fixedly connected to the extrusion rod. The angled pressing block is slidably connected to the extension plate. Chamfers are made on the upper and lower surfaces of the side of the angled pressing block away from the extension plate. A support spring is fixedly connected between the angled pressing block and the extension plate.

[0013] Preferably, a contact switch is fixedly connected inside the angled pressing block. An iron block is fixedly connected to the side of the angled pressing block close to the extrusion rod. A through electromagnet one is fixedly connected inside the extension plate and outside the extrusion rod.

[0014] Preferably, a three-axis robotic arm is fixedly connected to the bottom of the mounting plate and on one side of the detection tank, a visual probe is fixedly connected to the outside of the three-axis robotic arm, a transparent glass plate is fixedly connected to the side of the detection tank close to the three-axis robotic arm, a power supply block is fixedly connected to the side of the limit plate away from the extension plate, and three indicator lights are fixedly connected to the top of the power supply block.

[0015] Preferably, an adjusting tube is connected through the bottom of the detection tank and located on one side close to the mounting plate, and an iron core counterweight plug is slidably connected to the end of the adjusting tube away from the detection tank, a force storage spring is fixedly connected to the top of the iron core counterweight plug, a pressing rod is fixedly connected to the top of the force storage spring, and two electromagnets are fixedly connected to the outside of the adjusting tube and at a position corresponding to the position of the iron core counterweight plug, and a force storage assembly is arranged on the top of the pressing rod, and the force storage assembly is used to drive the pressing rod to move downward.

[0016] Preferably, the force storage component includes a rolling ball rotatably connected to the top of the pressing rod, and also includes two groups of extruded parts fixed to the surface of the rotating belt, the two groups of extruded parts are composed of multiple iron plates, a magnet is fixed to the side of the iron plate away from the rotating belt, and the extruded parts are in the shape of an isosceles trapezoid.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The detection device for a capacitive liquid level sensor described in the present invention drives a pair of limit plates to slide up and down respectively through a driving component. When the limit plate installed with the capacitive liquid level sensor moves downward to the bottom end of the slide slot, the capacitive liquid level sensor is just inserted into the interior of the detection tank, thereby starting detection. At this time, the other limit plate just moves to the top of the slide slot. At this time, the operator can continue to load the material, that is, continue to install the capacitive liquid level sensor to be detected, without waiting for the detection to end. Therefore, compared with traditional detection equipment, it is more efficient and more in line with actual production conditions.

[0019] 2. The detection device for a capacitive liquid level sensor described in the present invention realizes automatic clamping of the capacitive liquid level sensor by setting a plurality of clamping plates to move toward each other, thereby facilitating the detection operation and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a working state diagram of the present invention;

[0022] Figure 2 is a stereogram of the present invention;

[0023] Figure 3 It is a stereogram of another viewing angle of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the fixed block in the present invention;

[0025] Figure 5 It is a schematic structural diagram of the limit plate in the present invention;

[0026] Figure 6 It is a cross-sectional view of the limit plate structure in the present invention;

[0027] Figure 7 It is a cross-sectional view of the adjusting pipe structure in the present invention;

[0028] In the figure: 1. mounting plate; 2. sliding groove; 201. dislocation part; 202. lifting part; 3. sliding rod; 4. limit plate; 5. detection tank; 6. fixed block; 7. guide rod; 8. return spring; 9. active block; 10. rotating belt; 11. clamping plate; 12. clamping rod; 13. extrusion plug; 14. oil storage tank; 15. extension plate; 16. extrusion rod; 17. bevel pressing block; 18. contact switch; 19. electromagnet one; 20. three-axis robotic arm; 21. vision probe; 22. power supply block; 23. adjusting pipe; 24. iron core counterweight plug; 25. energy storage spring; 26. pressing rod; 27. electromagnet two; 28. rolling ball; 29. extrusion part; 30. capacitance liquid level sensor. Specific Embodiments

[0029] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0030] A detection device for a capacitance liquid level sensor according to an embodiment of the present invention includes a mounting plate 1, a pair of symmetrically arranged sliding grooves 2 are opened inside the mounting plate 1, a sliding rod 3 is slidably connected inside each of the pair of sliding grooves 2, one ends of the pair of sliding rods 3 are fixedly connected with a limit plate 4 respectively, the central axes of the pair of limit plates 4 are on the same straight line, a detection tank 5 is fixedly connected to the bottom of the mounting plate 1, and a driving assembly is installed at the other end of the sliding rod 3, and the driving assembly is used to drive the pair of sliding rods 3 to slide along the pair of sliding grooves 2 respectively; the sliding groove 2 is composed of a lifting part 202 and a dislocation part 201, and a smooth transition is provided between the lifting part 202 and the dislocation part 201;

[0031] During operation, before actually using the embodiments of the present invention, the installation position can be designed according to the actual situation of the factory. When using the embodiments of the present invention, the first thing to ensure is the positions of the two limit plates 4, which are respectively located at the top and bottom of the two chutes 2. Then, the capacitance liquid level sensor 30 to be detected is placed inside the upper limit plate 4. Then, the driving assembly is started, and the driving assembly drives the sliding rod 3 to slide inside the chute 2, thereby driving the upper limit plate 4 to slide downward. At the same time, the lower limit plate 4 will also move upward under the action of the driving assembly. When the limit plate 4 installed with the capacitance liquid level sensor 30 moves downward to the bottom of the chute 2, at this time, the capacitance liquid level sensor 30 just inserts into the detection tank 5, and thus the detection starts. At this time, the other limit plate 4 just moves to the top of the chute 2. Then the operator can continue to feed materials, that is, continue to install the capacitance liquid level sensor 30 to be detected, without waiting for the detection to end. That is to say, using the embodiments of the present invention enables the employees to disassemble the capacitance liquid level sensor that has completed the previous detection and install the next capacitance liquid level sensor to be detected during the detection process of the capacitance liquid level sensor, thereby achieving the effect of saving the waiting time for detection and efficiently completing the detection; thus, it is more efficient and more in line with the actual production situation compared with the traditional detection equipment; it should be noted that the central axes of a pair of limit plates 4 and the detection tank 5 are all on the same straight line, thereby providing a consistent detection environment for the detection of the capacitance liquid level sensor 30. It can be understood that since there is a distance between the two chutes 2, the two limit plates 4 should be eccentrically installed when installed on the sliding rod 3.

[0032] Furthermore, for some enterprises, they can solve the employee waiting time during the operation of the equipment by installing two detection devices at the same time. However, first of all, the cost of using two devices is much greater than that of the embodiments of the present invention. At the same time, for some small factories, they do not have enough space to install two detection devices. Therefore, compared with directly using two devices to improve efficiency, the embodiments of the present invention have the effect of saving the floor space of the equipment.

[0033] Combined with the attached Figure 2, the sliding groove 2 is composed of a pair of offset portions 201 and a lifting portion 202, and there is a smooth transition between the offset portion 201 and the lifting portion 202. Therefore, when the sliding rod 3 drives the limiting plate 4 to slide along the sliding groove 2, it will first slide along the offset portion 201 and then slide into the lifting portion 202. When both limiting plates 4 slide into the interior of the lifting portion 202, the distance between a pair of lifting portions 202 is greater than the distance between a pair of offset portions 201 at this time, thereby providing a spatial basis for the separate movement of the two limiting plates 4; it should be noted that longer electrode portions are provided at the bottom ends of traditional capacitance liquid level sensors 30. Therefore, when designing the offset portion 201, the length of the electrode portion should be considered, that is, it is necessary to ensure that the electrode portions on a pair of limiting plates 4 do not interfere during the process of the limiting plate 4 entering the lifting portion 202;

[0034] At the same time, when installing the embodiment of the present invention, the installation space can be adjusted so that the limiting plate 4 is located at a position slightly below the waist of the worker. At this time, the worker can directly remove the capacitance liquid level sensor 30 to be detected from the production line and easily insert the capacitance liquid level sensor 30 into the interior of the limiting plate 4. In this way, the effect of quickly detecting the capacitance liquid level sensor 30 is achieved. At the same time, through the offset design of a pair of sliding grooves 2, the floor space of the equipment can also be saved, which is more in line with the utilization of regional resources in the factory.

[0035] The driving assembly includes a rotating belt 10. A plurality of guide rollers are rotatably connected to the outside of the mounting plate 1. The rotating belt 10 is arranged outside the guide rollers. A pair of connecting components are arranged outside the rotating belt 10, and the pair of connecting components are respectively connected to a pair of sliding rods 3;

[0036] During operation, it should be noted that a servo motor is installed on the outside of one of the guide rollers, and the servo motor drives it to rotate, thereby driving the rotating belt 10 to rotate, so as to Figure 3 For example, since the installation positions of a pair of sliding rods 3 are one above the other, when the rotating belt 10 rotates clockwise, the sliding rod 3 located above will move downward along the sliding groove 2, and the sliding rod 3 located below will move upward along the sliding groove 2, thereby achieving the effect that only one driving source can drive the two sliding rods 3 to move synchronously. At the same time, it can also avoid the situation where the sliding rods 3 interfere with each other and collide with the machine due to program failures when multiple driving sources operate together.

[0037] The connecting component includes a fixed block 6. The fixed block 6 is fixedly connected to the end of the sliding rod 3. A guide rod 7 is fixedly connected to the side of the fixed block 6 away from the center of the mounting plate 1. The end of the guide rod 7 away from the fixed block 6 is slidably connected to an active block 9. The guide rod 7 penetrates through the active block 9. A return spring 8 is fixedly connected between the fixed block 6 and the active block 9 and on the outside of the guide rod 7. The active block 9 is fixedly connected to the rotating belt 10;

[0038] During operation, when the rotating belt 10 is moving, it will first drive the active block 9 to move. The movement of the active block 9 drives the guide rod 7 to move, and the movement of the guide rod 7 further drives the fixed block 6 to move. Finally, the fixed block 6 drives the sliding rod 3 to slide inside the chute 2. When the fixed block 6 drives the sliding rod 3 to slide from the misaligned part 201 to the lifting part 202, the fixed block 6 at this time will push the guide rod 7 to slide inside the active block 9 and simultaneously compress the return spring 8. Similarly, when driving the sliding rod 3 to slide from the lifting part 202 to the misaligned part 201, the return spring 8 at this time returns to drive the guide rod 7 to slide inside the active block 9, thus providing a basis for the sliding of the sliding rod 3 inside the chute 2. It should be noted that referring to the attached Figure 3 , a vertical slider is fixedly connected to the side of the active block 9 close to the mounting plate 1, and a vertical chute is provided inside the mounting plate 1 at the position of the vertical slider. The vertical slider is slidably connected inside the vertical chute to limit the active block 9. This part is prior art and will not be elaborated in this invention.

[0039] An installation groove is formed inside the limiting plate 4. A plurality of clamping plates 11 are arranged inside the installation groove. A clamping rod 12 is fixedly connected to the side of each of the plurality of clamping plates 11 away from the center of the installation groove. An extrusion plug 13 is fixedly connected to the end of the clamping rod 12 away from the clamping plate 11. A clamping spring is fixedly connected between the clamping plate 11 and the inner wall of the installation groove and outside the clamping rod 12. A clamping assembly is arranged on the side of the extrusion plug 13 away from the clamping rod 12. The clamping assembly is used to drive the plurality of clamping plates 11 to move towards each other.

[0040] During work, when installing the capacitive liquid level sensor 30, the employee needs to first put it into the installation groove, and then support the capacitive liquid level sensor 30 through the flange on the capacitive liquid level sensor 30. At this time, the employee has completed the installation work, and then during the movement of the limit plate 4, the clamping assembly runs, pushing the extrusion plug 13 to move, and the movement of the extrusion plug 13 pushes the clamping rod 12 to move, and the movement of the clamping rod 12 drives the clamping plate 11 to stretch the clamping spring to move. At this time, multiple clamping plates 11 move toward each other, thereby completing the clamping operation of the capacitive liquid level sensor 30. During the clamping process, the capacitive liquid level sensor 30 also completes the automatic centering operation, thereby achieving automatic positioning to ensure the consistency of each detection, and at the same time The automatic clamping effect is also achieved; it should be noted that, when designing here, it should be noted that the inner diameter between the multiple clamps 11 is larger than the diameter of the flange on the capacitive liquid level sensor 30. In this way, when the capacitive liquid level sensor 30 is placed, the capacitive liquid level sensor 30 can make the flange on it fit the bottom of the installation groove under the action of gravity. If the inner diameter between the clamps 11 is designed to be smaller than the diameter of the flange on the capacitive liquid level sensor 30, although there is a clamping function, manual pressing is required for installation, which not only increases the workers' working procedures, but also if the workers do not press in place, the capacitive liquid level sensor 30 will tilt, thereby affecting the final detection result, and even causing interference between the limit plate 4 during movement.

[0041] The clamping assembly includes an oil storage tank 14 provided inside the limit plate 4, a plurality of sliding grooves are provided inside the limit plate 4 and on a side of the oil storage tank 14 close to the mounting groove, the plurality of sliding grooves correspond to the extrusion plugs 13 one by one, and the extrusion plugs 13 are slidably connected inside the sliding grooves, an extension plate 15 is fixedly connected to each other on one side of a pair of limit plates 4 close to each other, an extrusion groove is provided inside the extension plate 15, and the extrusion groove is communicated with the oil storage tank 14, an extrusion rod 16 is slidably connected inside the extrusion groove, an extrusion assembly is provided outside the extrusion rod 16, and the extrusion assembly is used to drive the extrusion rod 16 to slide inside the extrusion groove;

[0042] During operation, before use, oil should be injected into the oil storage tank 14. During use, the operation of the extrusion assembly drives the extrusion rod 16 to slide in the extrusion groove. Under the action of the oil, the extrusion force will act on the extrusion plug 13, thereby pushing the extrusion plug 13 to move, achieving the effect of driving the extrusion plug 13 to move.

[0043] The extrusion assembly includes an angled pressing block 17, one end of the extrusion rod 16 away from the oil storage tank 14 is fixedly connected to the angled pressing block 17, the angled pressing block 17 is fixedly connected to the extrusion rod 16, the angled pressing block 17 is slidably connected to the extension plate 15, the upper and lower surfaces of the angled pressing block 17 away from the extension plate 15 are chamfered, and a support spring is fixedly connected between the angled pressing block 17 and the extension plate 15;

[0044] During operation, when the two limit plates 4 are moving, they will cross each other. During the crossing process, the two beveled pressure blocks 17 come into contact with each other. Since chamfers are made on both the upper and lower surfaces of the beveled pressure block 17 on the side away from the extension plate 15, at this time, the two beveled pressure blocks 17 squeeze and compress the support spring to move, and the movement of the beveled pressure block 17 drives the extrusion rod 16 to move.

[0045] A contact switch 18 is fixedly connected inside the beveled pressure block 17, an iron block is fixedly connected to the side of the beveled pressure block 17 close to the extrusion rod 16, and a first through electromagnet 19 is fixedly connected inside the extension plate 15 and outside the extrusion rod 16;

[0046] During operation, after the two limit plates 4 cross each other, for the upward-moving limit plate 4, the clamping plate 11 inside it needs to reset and release the capacitance liquid level sensor 30 to facilitate subsequent replacement operations. For the downward-moving limit plate 4, the clamping plate 11 inside it needs to maintain the clamping state. Therefore, the contact switch 18 and the electromagnet 19 are designed. In the initial state, for the limit plate 4 located above, the electromagnet 19 inside it is in a power-off state, while for the limit plate 4 located below, the electromagnet 19 inside it is in a powered-on state. The electromagnet 19 generates magnetism when powered on to adsorb the iron block. Through the magnetic force, a pulling force is applied to the extrusion rod 16, thereby preventing the clamping plate 11 from resetting and achieving the clamping effect on the capacitance liquid level sensor 30. When the limit plates 4 move and cross each other, the contact switches 18 inside the beveled pressure blocks 17 will contact and separate from each other. It should be noted that the contact switch 18 is a circuit switch and is connected in series with the power-on circuit of the electromagnet 19. Its opening and closing state will change after being pressed, that is: if the contact switch 18 is in a closed state in the initial state, it will change to an open state after being pressed once. At this time, the circuit of the electromagnet 19 connected in series with it is disconnected, so that the electromagnet 19 loses power. Similarly, it will return to the closed state after being pressed again, making the electromagnet 19 get power again. Therefore, when the contact switches 18 inside the beveled pressure blocks 17 contact and separate from each other, the power-on situation of the electromagnets 19 inside a pair of limit plates 4 changes, so that the electromagnet 19 inside the upward-moving limit plate 4 is powered off, while the electromagnet 19 inside the downward-moving limit plate 4 is powered on, achieving the clamping and releasing effects. It should be noted that for the limit plate 4 located below, the support spring in its initial state is in a compressed state, and the beveled pressure block 17 is retracted inside the extension plate 15. Therefore, when designing the equipment size, the crossing length between the two limit plates 4 should be the compression distance of a beveled pressure block 17 pressed into the extension plate 15. Through this design, if the flange size of the capacitance liquid level sensor 30 is abnormal, it will cause the compression distance of the beveled pressure block 17 to be limited, resulting in the two limit plates 4 being unable to cross smoothly. At this time, the drive assembly reverses to drive the limit plates 4 to reset, thereby reminding the employee that the size is abnormal and achieving the effect of detecting the flange size of the capacitance liquid level sensor 30.

[0047] At the bottom of the mounting plate 1 and on one side of the detection tank 5, a three-axis robotic arm 20 is fixedly connected. A vision probe 21 is fixedly connected to the outside of the three-axis robotic arm 20. A transparent glass plate is fixedly connected to one side of the detection tank 5 close to the three-axis robotic arm 20. A power supply block 22 is fixedly connected to the side of the limit plate 4 away from the extension plate 15. Three indicator lights are fixedly connected to the top of the power supply block 22;

[0048] During operation, when the capacitive liquid level sensor 30 is inserted into the detection tank 5, it will get a reading. At this time, the three-axis robotic arm 20 drives the visual probe 21 to read the liquid level inside the detection tank 5 through the transparent glass plate, and a real-time reading will be obtained. By comparing these two readings, it can be known whether the reading of the capacitive liquid level sensor 30 is correct, so as to judge the quality of the capacitive liquid level sensor 30. It should be noted that through the design of the power supply block 22, employees can draw power from the socket on the power supply block 22 to the capacitive liquid level sensor 30 during installation. At the same time, since the limit plate 4 is installed eccentrically, the design of the power supply block 22 can also adjust the center of gravity of the limit plate 4 so that it is located at The center position of the sliding rod 3 is convenient for the movement of the sliding rod 3; it can be understood that the surface of the transparent glass plate should be provided with a scale; the design of the three-axis robot arm 20 can adjust the position of the visual probe 21 at any time to make it level with the scale line of the liquid level to ensure accurate readings; further, the operator can connect the readings of the capacitive liquid level sensor 30 and the readings of the visual probe 21 to the same system, so that the system can automatically compare the two results to judge the quality of the capacitive liquid level sensor 30. At the same time, the system can also be connected to the indicator light, and different lights will be turned on when the quality is qualified and unqualified; and the last light will be turned on when the flange size is unqualified.

[0049] The bottom of the detection tank 5 and one side close to the mounting plate 1 is connected through an adjusting tube 23, and the end of the adjusting tube 23 away from the detection tank 5 is slidably connected to an iron core counterweight plug 24, and a force storage spring 25 is fixedly connected to the top of the iron core counterweight plug 24, and a pressing rod 26 is fixedly connected to the top of the force storage spring 25. The outside of the adjusting tube 23 and at the position corresponding to the position of the iron core counterweight plug 24 are fixedly connected to a through electromagnet 27, and a force storage component is arranged on the top of the pressing rod 26, and the force storage component is used to drive the pressing rod 26 to move downward;

[0050] During operation, it should be noted that both the vision probe 21 and the electromagnet II 27 are externally connected to the same control system. In the initial state, the energy storage component drives the pressing rod 26 to move downward. At this time, the electromagnet II 27 is energized to apply a magnetic force to the iron core counterweight plug 24, making the iron core counterweight plug 24 unable to move. Therefore, the pressing rod 26 will compress the energy storage spring 25 to make it contract and store energy. After the capacitance liquid level sensor 30 is inserted into the detection tank 5, the vision probe 21 takes the first reading. Subsequently, the control system controls the electromagnet II 27 to de-energize. At this time, the pressing rod 26 is blocked by the energy storage component. Therefore, the elastic potential energy of the energy storage spring 25 can only push the iron core counterweight plug 24 to move. The iron core counterweight plug 24 moves to press the liquid in the regulating pipe 23 into the detection tank 5, thereby changing the liquid level inside the detection tank 5. At this time, the vision probe 21 takes the second reading. In this way, the effect of multiple detections is achieved, improving the detection accuracy. It should be noted that during actual design, parameters such as the size of the regulating pipe 23 and the spring constant of the energy storage spring 25 need to be adjusted according to specific situations to ensure that there is a relatively obvious change in the liquid level inside the detection tank 5 when the elastic potential energy of the energy storage spring 25 is released.

[0051] The energy storage component includes a rolling ball 28 rotatably connected to the top of the pressing rod 26, and also includes two sets of pressing members 29 fixedly connected to the surface of the rotating belt 10. Both sets of pressing members 29 are composed of multiple iron plates. A magnet is fixedly connected to the side of the iron plate away from the rotating belt 10, and the pressing member 29 is in an isosceles trapezoid shape.

[0052] During operation, during the rotation of the rotating belt 10, it will drive the pressing member 29 to move. Since the pressing member 29 is in an isosceles trapezoid shape, it will gradually apply a downward pressure to the pressing rod 26 when it contacts the rolling ball 28, achieving the effect of automatic energy storage. The design of the pressing member 29 composed of multiple iron plates is to facilitate the rotation of the rotating belt 10 during rotation. The design of the magnet allows the multiple iron plates to fit together. During the rotation of the rotating belt 10, the fitted iron plates will also be separated without affecting the rotation.

[0053] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for a capacitive liquid level sensor, characterized in that: The mounting plate (1) comprises a pair of symmetrically arranged slide grooves (2) in the mounting plate (1), the pair of slide grooves (2) are both slidably connected with slide rods (3), the pair of slide rods (3) are respectively arranged at the top and bottom ends of the pair of slide grooves (2), one end of the slide rod (3) is fixedly connected to a limit plate (4), the central axes of the pair of limit plates (4) are in the same straight line, a detection tank (5) is fixedly connected to the bottom of the mounting plate (1), and a driving assembly is installed at the other end of the slide rod (3), and the driving assembly is used to drive the pair of slide rods (3) to slide along the pair of slide grooves (2) respectively; The slide groove (2) is composed of a lifting portion (202) and a misaligned portion (201), and there is a smooth transition between the lifting portion (202) and the misaligned portion (201).

2. A detection device for a capacitive liquid level sensor according to claim 1, characterized in that: The driving assembly comprises a rotating belt (10), the outside of the mounting plate (1) is rotatably connected to a plurality of guide rollers, the rotating belt (10) is arranged outside the guide rollers, a pair of connecting assemblies are arranged outside the rotating belt (10), and the pair of connecting assemblies are respectively connected to a pair of sliding rods (3).

3. A detection device for a capacitive liquid level sensor according to claim 2, characterized in that: The connecting assembly comprises a fixed block (6), wherein the fixed block (6) is fixedly connected to the end of the sliding rod (3), a guide rod (7) is fixedly connected to the side of the fixed block (6) away from the center of the mounting plate (1), an active block (9) is slidably connected to the end of the guide rod (7) away from the fixed block (6), the guide rod (7) passes through the active block (9), a return spring (8) is fixedly connected between the fixed block (6) and the active block (9) and outside the guide rod (7), and the active block (9) is fixedly connected to the rotating belt (10).

4. A detection device for a capacitive liquid level sensor according to claim 3, characterized in that: The limiting plate (4) is provided with a mounting groove inside, and a plurality of clamping plates (11) are arranged inside the mounting groove. A clamping rod (12) is fixedly connected to one side of the plurality of clamping plates (11) away from the center of the mounting groove. An extrusion plug (13) is fixedly connected to one end of the clamping rod (12) away from the clamping plate (11). A clamping spring is fixedly connected between the clamping plate (11) and the inner wall of the mounting groove and outside the clamping rod (12). A clamping assembly is arranged on one side of the extrusion plug (13) away from the clamping rod (12), and the clamping assembly is used to drive the plurality of clamping plates (11) to move toward each other.

5. A detection device for a capacitive liquid level sensor according to claim 4, characterized in that: The clamping assembly comprises an oil storage tank (14) provided inside the limit plate (4); a plurality of sliding grooves are provided inside the limit plate (4) and on a side of the oil storage tank (14) close to the mounting groove; the plurality of sliding grooves correspond to the extrusion plugs (13) one by one, and the extrusion plugs (13) are slidably connected inside the sliding grooves; an extension plate (15) is fixedly connected to each other on one side of a pair of limit plates (4); an extrusion groove is provided inside the extension plate (15), and the extrusion groove is communicated with the oil storage tank (14); an extrusion rod (16) is slidably connected inside the extrusion groove; an extrusion assembly is provided outside the extrusion rod (16), and the extrusion assembly is used to drive the extrusion rod (16) to slide inside the extrusion groove.

6. A detection device for a capacitive liquid level sensor according to claim 5, characterized in that: The extrusion assembly comprises an angled pressing block (17), one end of the extrusion rod (16) away from the oil storage tank (14) is fixedly connected to the angled pressing block (17), the angled pressing block (17) is fixedly connected to the extrusion rod (16), the angled pressing block (17) is slidably connected to the extension plate (15), the upper and lower surfaces of the side of the angled pressing block (17) away from the extension plate (15) are both chamfered, and a support spring is fixedly connected between the angled pressing block (17) and the extension plate (15).

7. A detection device for a capacitive liquid level sensor according to claim 6, characterized in that: A contact switch (18) is fixedly connected inside the angled pressing block (17), an iron block is fixedly connected to one side of the angled pressing block (17) close to the extrusion rod (16), and an electromagnet (19) is fixedly connected inside the extension plate (15) and outside the extrusion rod (16).

8. A detection device for a capacitive liquid level sensor according to claim 7, characterized in that: A three-axis robotic arm (20) is fixedly connected to the bottom of the mounting plate (1) and located on one side of the detection tank (5); a visual probe (21) is fixedly connected to the outside of the three-axis robotic arm (20); a transparent glass plate is fixedly connected to the side of the detection tank (5) close to the three-axis robotic arm (20); a power supply block (22) is fixedly connected to the side of the limit plate (4) away from the extension plate (15); and three indicator lights are fixedly connected to the top of the power supply block (22).

9. A detection device for a capacitive liquid level sensor according to claim 8, characterized in that: An adjusting tube (23) is connected through the bottom of the detection tank (5) and located on a side close to the mounting plate (1). An end of the adjusting tube (23) away from the detection tank (5) is slidably connected to an iron core counterweight plug (24). A force storage spring (25) is fixedly connected to the top of the iron core counterweight plug (24). A pressing rod (26) is fixedly connected to the top of the force storage spring (25). A second electromagnet (27) is fixedly connected to the outside of the adjusting tube (23) and at a position corresponding to the position of the iron core counterweight plug (24). A force storage component is arranged on the top of the pressing rod (26). The force storage component is used to drive the pressing rod (26) to move downward.

10. A detection device for a capacitive liquid level sensor according to claim 9, characterized in that: The force storage component comprises a rolling ball (28) rotatably connected to the top of a pressing rod (26), and also comprises two groups of extrusion members (29) fixedly connected to the surface of a rotating belt (10), the two groups of extrusion members (29) are both composed of a plurality of iron plates, a magnet is fixedly connected to the side of the iron plate away from the rotating belt (10), and the extrusion members (29) are in the shape of an isosceles trapezoid.

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