High-precision non-contact liquid level sensor

Abstract

The utility model relates to the technical field of liquid level sensors, and particularly discloses a high-precision non-contact liquid level sensor which comprises an annular seat, an annular groove is formed in the outer side of the annular seat, a sliding plate is connected to the inner side of the annular groove in a sliding mode, and an adjusting mechanism is fixedly installed on the outer side of the sliding plate. A clamping mechanism is fixedly mounted at the bottom of the adjusting mechanism, and a liquid level sensor body is mounted in the clamping mechanism; the adjusting mechanism comprises a side plate and a gear ring, the side plate is fixedly installed on the outer side of the sliding plate, a first motor is used for enabling a gear to drive the gear ring, the sliding plate annularly moves in an annular groove, and therefore the liquid level sensor is driven to annularly move, and during the period, a second motor is started to enable a rotating shaft to drive a liquid level sensor body to rotate to adjust the angle. The annular design can adapt to a circular water storage container, the adaptation capacity is improved, any position and angle can be detected, the detection precision is improved, and the non-contact liquid level sensor has high-precision detection performance.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level sensors, in particular to a high-precision non-contact liquid level sensor. Background Art

[0002] The laser non-contact liquid level sensor is an extremely advanced measuring device with unique advantages. It uses laser technology to detect the liquid level, and the whole process does not require direct contact with the measured liquid. Its working principle is to emit a high-precision laser beam to illuminate the liquid surface, and then receive the reflected laser signal. With the help of precise optical and electronic technology, it accurately measures the time of the laser round trip, and calculates the height of the liquid level according to the relevant formula. This sensor has many outstanding features. Its measurement accuracy is quite high, and it can provide extremely accurate liquid level data. It is very suitable for those scenarios that require high-precision measurement; its response speed is very fast, and it can timely feedback the changes in the liquid level; and it will not be affected by the characteristics of the liquid, whether it is corrosive liquid or other liquids with complex properties, it can achieve accurate measurement. At the same time, it can still work stably and reliably in harsh environments, has strong adaptability, and can be widely used in many industrial fields and special environments, providing reliable technical support for liquid level monitoring and related control;

[0003] The Chinese patent with the publication number "CN221055839U" discloses a dustproof capacitive non-contact liquid level sensor, which includes a mounting seat, an adhesive layer is provided on the back of the mounting seat, an adjustment mechanism is provided on the inner side of the mounting seat, a liquid level sensor body is plugged into the front of the adjustment mechanism, and a sensitivity adjustment button and an indicator light are provided on the front of the liquid level sensor body. After the liquid level sensor body is installed on the mobile frame, if it is necessary to adjust the detection page position according to the required external container, it is only necessary to use the crank on the front of the mounting seat to shake the rotating rod in the second mounting groove, and the rotation of the rotating rod will make the second outer bevel gear mesh with the first bevel gear. Since the rotation of the first bevel gear will make the connected screw rotate in the first mounting groove, the rotation of the screw will make the mobile frame connected by the outer thread slide in the first mounting groove, so that the sensing position of the liquid level sensor body can be easily adjusted and used;

[0004] However, although the above-mentioned device can assist in adjusting the activity of the liquid level sensor during use, in specific applications, although the overall lateral position of the sensor can be adjusted, it is extremely inconvenient to use in an arc-shaped environment. Conventional liquid level sensors are mostly used in cylindrical water storage containers. During their application, this linear position adjustment design is obviously unable to adapt to the interior of a circular container, and cannot be flexibly adjusted and adapted in a circular shape. Obviously, the position cannot be adapted, and its overall detection accuracy is easily limited. The overall adaptation performance during use is poor, so it needs to be improved.

[0005] To this end, we propose a high-precision non-contact liquid level sensor to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-precision non-contact liquid level sensor to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides a high-precision non-contact liquid level sensor, comprising an annular seat, an annular groove is formed on the outer side of the annular seat, a slide plate is slidably connected to the inner side of the annular groove, an adjustment mechanism is fixedly installed on the outer side of the slide plate, a clamping mechanism is fixedly installed on the bottom of the adjustment mechanism, and a liquid level sensor body is installed inside the clamping mechanism;

[0008] The adjustment mechanism includes a side plate and a gear ring, the side plate is fixedly installed on the outer side of the skateboard, the gear ring is fixedly installed on the top of the annular seat, a first motor is fixedly installed on the bottom of the side plate, a gear is fixedly installed on the top output end of the first motor through the side plate, the gear and the gear ring are meshingly connected, an angle adjustment component is fixedly installed on the bottom of the side plate, and the bottom of the angle adjustment component is fixedly connected to the top of the clamping mechanism.

[0009] Furthermore, the angle adjustment assembly includes a base frame, which is fixedly installed on the bottom of the side panel, and the inner side of the base frame is rotatably connected to a rotating shaft, a second motor is fixedly installed on one side of the base frame, an output end of the second motor passes through the base frame and is fixedly connected to one side of the rotating shaft, and the bottom of the rotating shaft is fixedly connected to a clamping mechanism.

[0010] Furthermore, the clamping mechanism includes a connecting column, which is fixedly installed on the bottom of the rotating shaft, a mounting plate is fixedly installed on the bottom of the connecting column, a clamping frame is fixedly installed on the bottom of the mounting plate, mounting grooves are provided at both ends of the interior of the clamping frame, a mounting plate is slidably connected to the inner side of the mounting groove, the liquid level sensor body is installed between the inner sides of the mounting plates, a clamping component is fixedly installed on the middle part of the outer side of the clamping frame, and a linkage component is fixedly connected to the upper end of the outer side of the clamping frame.

[0011] Furthermore, the overall cross-sectional shape of the mounting plate is set in a convex shape, the overall cross-sectional shape of the mounting groove is also set in a convex shape, and the overall cross-sectional shape of the slide plate and the annular groove is also set in a convex shape.

[0012] Furthermore, the card assembly includes a card slot and a side rail, the card slot is opened in the middle of both sides of the liquid level sensor body, the side rail is fixedly installed in the middle of the outer side of the card frame, the inner ends of the side rails are fixedly connected to limit springs, the ends of the limit springs are fixedly installed with limit frames, the top view shape of the limit frame is concave, and the ends of the limit frame are inserted into the inner side of the card slot.

[0013] Furthermore, a push plate is fixedly mounted on the outer side of the limiting frame, and the push plate is L-shaped when viewed from above.

[0014] Furthermore, the linkage assembly includes a vertical rail, which is fixedly installed on the upper end of the card frame, a sliding block is slidably connected to the inner side of the vertical rail, a linkage guide plate is fixedly installed on the bottom of the sliding block, and an adjustment plate is fixedly connected to the outer side of the sliding block.

[0015] Furthermore, the inner end of the push plate is fixedly connected with a guide plate, the inner end of the guide plate is configured to be semicircular, and the top of the guide plate is fitted and connected with the bottom inclined surface of the linkage guide plate.

[0016] Furthermore, the overall cross-sectional shape of the linkage guide plate is an isosceles triangle, and the inclined surface of the linkage guide plate is fitted and connected to the top of the guide plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] Firstly, in the utility model, by providing an adjustment mechanism, when the first motor is started during use, the gear drives the gear ring meshing therewith, thereby driving the slide plate to slide in an annular groove, thereby realizing annular movable displacement of the liquid level sensor. At the same time, starting the second motor allows the rotating shaft to drive the liquid level sensor body in the clamping mechanism to rotate and adjust the angle. This annular design can flexibly adapt to circular water storage containers, enhance the adaptability of the device during use, detect any position angle in the water storage container, improve detection accuracy, and enable the non-contact liquid level sensor to have high-precision detection performance, which can better meet the needs of actual applications.

[0019] Secondly, in the utility model, a card-mounting mechanism is provided, so that when the liquid level sensor body needs to be removed, the adjusting plate is pushed to make the sliding block slide in the vertical rail, thereby driving the linkage guide plate to move. The inclined surface pushes the guide plate and the push plate to displace the two sides of the limit frame, the limit spring is extended, and the end of the limit frame is separated from the card slot. The mounting plate can be pulled out of the mounting slot to complete the removal. During installation, the limit frame is separated in the same way, and the adjusting plate is loosened after the mounting plate is inserted. The limit spring is reset to make the limit frame inserted into the card slot for limit, thereby assisting the card-mounting installation. In this way, the overall disassembly and assembly of the device is convenient and the installation is stable. It can flexibly meet the use requirements and improve the operation efficiency and use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0022] Figure 3 This is a schematic diagram of the structure of the slide plate and the ring-shaped device in the utility model in a separated state;

[0023] Figure 4 It is a schematic diagram of the top view of the structure of the adjustment mechanism, the installation mechanism and the liquid level sensor in the utility model;

[0024] Figure 5 This is a bottom view structural diagram of the adjustment mechanism, the mounting mechanism and the liquid level sensor in the utility model;

[0025] Figure 6 This is a front view structural diagram of the installation mechanism and the liquid level sensor in the utility model in a disassembled state;

[0026] Figure 7 It is a rear view structural diagram of the installation mechanism and the liquid level sensor in the utility model in the disassembled state;

[0027] Figure 8 It is a schematic diagram of the structure of the installation mechanism in the utility model in the disassembled state.

[0028] In the figure: 1. annular seat; 2. annular groove; 3. slide plate; 4. liquid level sensor body; 5. adjustment mechanism; 51. side plate; 52. gear ring; 53. first motor; 54. gear; 55. angle adjustment assembly; 551. base frame; 552. rotating shaft; 553. second motor; 6. clamping mechanism; 61. connecting column; 62. mounting plate; 63. clamping frame; 64. mounting groove; 65. mounting plate; 66. clamping assembly; 661. clamping groove; 662. side rail; 663. limit spring; 664. limit frame; 665. push plate; 67. linkage assembly; 671. vertical rail; 672. sliding block; 673. linkage guide plate; 674. guide plate; 675. adjustment plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 8In the embodiment of the utility model, a high-precision non-contact liquid level sensor includes an annular seat 1, an annular groove 2 is provided on the outer side of the annular seat 1, a slide plate 3 is slidably connected to the inner side of the annular groove 2, an adjustment mechanism 5 is fixedly installed on the outer side of the slide plate 3, a clamping mechanism 6 is fixedly installed on the bottom of the adjustment mechanism 5, and a liquid level sensor body 4 is installed inside the clamping mechanism 6;

[0031] The adjusting mechanism 5 includes a side plate 51 and a gear ring 52. The side plate 51 is fixedly installed on the outer side of the slide plate 3. The gear ring 52 is fixedly installed on the top of the annular seat 1. A first motor 53 is fixedly installed on the bottom of the side plate 51. A gear 54 is fixedly installed on the top output end of the first motor 53 through the side plate 51. The gear 54 is meshed with the gear ring 52. An angle adjustment component 55 is fixedly installed on the bottom of the side plate 51. The bottom of the angle adjustment component 55 is fixedly connected to the top of the clamping mechanism 6. The slide plate 3 is driven by the adjusting mechanism 5 fixedly installed on the outside. The first motor 53 at the bottom of the side plate 51 in the adjusting mechanism 5 can drive the gear 54 to rotate, and The meshing of the toothed ring 52 enables the slide plate 3 to slide stably in annular shape in the annular groove 2, thereby driving the liquid level sensor body 4 in the clamping mechanism 6 to flexibly move in annular shape in the annular seat 1, and can detect any position in the cylindrical water storage container, greatly improving the comprehensiveness and flexibility of the detection. At the same time, the angle adjustment component 55 at the bottom of the side plate 51 can further drive the clamping mechanism 6 to adjust the angle of the liquid level sensor body 4, further improving the accuracy and adaptability of the detection. In addition, the clamping mechanism 6 makes the installation and disassembly of the liquid level sensor body 4 very convenient, and has strong stability, which is convenient for subsequent maintenance and replacement operations.

[0032] See also Figure 4-Figure 7 The angle adjustment component 55 includes a base frame 551, which is fixedly installed at the bottom of the side plate 51. The inner side of the base frame 551 is rotatably connected with a rotating shaft 552. A second motor 553 is fixedly installed on one side of the base frame 551. The output end of the second motor 553 passes through the base frame 551 and is fixedly connected to one side of the rotating shaft 552. The bottom of the rotating shaft 552 is fixedly connected to the clamping mechanism 6. The second motor 553 on one side of the base frame 551 is driven to drive the clamping mechanism 6 connected thereto to rotate, thereby realizing flexible adjustment of the angle of the liquid level sensor body 4. Such a design enables the liquid level sensor to accurately adjust the detection angle according to actual needs. Whether facing complex container shapes or different liquid level conditions, the accuracy and reliability of detection can be guaranteed. Moreover, this method of precise control by the motor ensures the stability and efficiency of the angle adjustment, can quickly and accurately respond to changes in various detection needs, and further improves the performance and application range of the entire non-contact liquid level sensor.

[0033] See also Figure 4-Figure 8The clamping mechanism 6 includes a connecting column 61, which is fixedly installed at the bottom of the rotating shaft 552. A mounting plate 62 is fixedly installed at the bottom of the connecting column 61, and a clamping frame 63 is fixedly installed at the bottom of the mounting plate 62. Both ends of the inner side of the clamping frame 63 are provided with mounting grooves 64. The inner side of the mounting groove 64 is slidably connected with a mounting plate 65. The liquid level sensor body 4 is installed between the inner sides of the mounting plates 65. A clamping assembly 66 is fixedly installed at the middle part of the outer side of the clamping frame 63. A linkage assembly 67 is fixedly connected to the outer upper end of the clamping frame 63. The connecting column 61 connects the rotating shaft 552 and the mounting plate 62 to ensure the stability of power transmission. The clamping frame 63 at the bottom of the mounting plate 62 An installation space is provided for the liquid level sensor body 4, and the installation grooves 64 at both ends of the card frame 63 are slidably connected to the installation plate 65. This design makes the installation and disassembly of the liquid level sensor body 4 very simple and improves the convenience of operation. At the same time, the setting of the card assembly 66 further enhances the stability of the installation of the liquid level sensor body 4, ensuring that it will not shake or dislocate easily during operation, and the linkage assembly 67 cooperates with other parts to make the operation of the entire card mechanism 6 more coordinated and efficient. Such a card mechanism 6 not only meets the needs of quick disassembly and assembly of the liquid level sensor body 4, but also ensures its stability and reliability during use.

[0034] See also Figure 1-Figure 7 The overall cross-sectional shape of the mounting plate 65 is convex, the overall cross-sectional shape of the mounting groove 64 is also convex, and the overall cross-sectional shape of the slide plate 3 and the annular groove 2 is also convex. This convex cross-sectional design has multiple advantages. For the mounting plate 65 and the mounting groove 64, the convex setting enables the mounting plate 65 to be more firmly embedded in the mounting groove 64, thereby enhancing the firmness and stability of the installation, and effectively preventing the liquid level sensor body 4 from loosening or shifting during operation, thereby ensuring the normal progress of the detection work. The slide plate 3 and the annular groove 2 also adopt a convex cross-sectional shape, which makes the sliding of the slide plate 3 in the annular groove 2 more precise, stable and not easy to dislocate, thereby ensuring that the slide plate 3 can smoothly perform annular movement along the predetermined track, thereby ensuring that the liquid level sensor body 4 can accurately perform annular displacement and angle adjustment, further improving the accuracy and reliability of the detection.

[0035] See also Figure 8The card assembly 66 includes a card slot 661 and a side rail 662. The card slot 661 is opened in the middle of both sides of the liquid level sensor body 4. The side rail 662 is fixedly installed in the middle of the outer side of the card frame 63. The inner ends of the side rail 662 are fixedly connected to the limit spring 663. The end of the limit spring 663 is fixedly installed with a limit frame 664. The top view of the limit frame 664 is concave. The end of the limit frame 664 is inserted into the inner side of the card slot 661. The limit spring 663 and the limit frame 664 are arranged in the side rail 662. When the liquid level sensor body 4 is installed in the card frame 63, the limit frame 664 is fixed in the limit spring. Under the action of the spring 663, it can be tightly inserted into the slot 661, so as to achieve a stable clamping fixation of the liquid level sensor body 4. This fixing method is simple and effective. It can not only ensure that the liquid level sensor body 4 will not shake or fall off easily during operation, but also can be easily and quickly installed and disassembled, thereby improving the convenience of operation. The concave limit frame 664 design can better cooperate with the slot 661, thereby enhancing the firmness of the clamping. At the same time, the elastic buffering effect of the limit spring 663 also enables the clamping assembly 66 to adapt to a certain degree of vibration and impact, thereby further improving the reliability of the entire device.

[0036] See also Figure 8 A push plate 665 is fixedly installed on the outer side of the limit frame 664. The top view shape of the push plate 665 is L-shaped. The L-shaped push plate 665 provides a convenient and intuitive operating position for the operator, so that when the liquid level sensor body 4 needs to be disassembled, the limit frame 664 can be easily driven to move by pushing the push plate 665, thereby conveniently releasing the fixed clamping of the liquid level sensor body 4, greatly improving the convenience and efficiency of the disassembly operation. This design makes the installation and disassembly process of the liquid level sensor body 4 more user-friendly and easy to operate, without the need for complicated tools or skills, reducing the difficulty of operation and time cost.

[0037] See also Figure 8The linkage assembly 67 includes a vertical rail 671, which is fixedly installed on the upper end of the card frame 63. A sliding block 672 is slidably connected to the inner side of the vertical rail 671. A linkage guide plate 673 is fixedly installed at the bottom of the sliding block 672. An adjustment plate 675 is fixedly connected to the outer side of the sliding block 672. The vertical rail 671 provides a stable sliding track for the sliding block 672 to ensure that the sliding block 672 can move up and down smoothly, thereby driving the linkage guide plate 673 and the adjustment plate 675 to perform corresponding actions. This design makes the action of the linkage assembly 67 have high accuracy and reliability. The sliding block 672 and The connection of the linkage guide plate 673 can effectively transmit the movement of the sliding block 672 to the linkage guide plate 673, thereby realizing precise control of related components. The setting of the adjustment plate 675 provides a convenient interface for external control or operation. The linkage component 67 can be conveniently operated and controlled through the adjustment plate 675. The design of the entire linkage component 67 is ingenious and compact. While realizing specific functions, it ensures the stability of the structure and the continuity of the action. It adds flexibility and controllability to the overall operation of the card installation mechanism 6, and further enhances the performance and adaptability of the non-contact liquid level sensor.

[0038] See also Figure 8 The inner end of the push plate 665 is fixedly connected with a guide plate 674, and the inner end of the guide plate 674 is set to be semicircular. The top of the guide plate 674 and the bottom inclined surface of the linkage guide plate 673 are fitted and connected. The semicircular design of the inner end of the guide plate 674 enables it to move relative to the linkage guide plate 673 more smoothly when it contacts the linkage guide plate 673, reducing jamming and friction, and ensuring smooth operation. When the linkage guide plate 673 moves, it is fitted and connected with the semicircular inner end and inclined surface of the guide plate 674, which can accurately transmit power and action to the push plate 665, thereby realizing the control of the limit frame 664. This close and ingenious cooperation ensures the coordination and consistency of the actions of the entire card installation mechanism 6, and whether it is installing or removing the liquid level sensor body 4, it can be carried out efficiently and accurately. At the same time, such a design enhances the integrity and linkage of the device, and improves the working efficiency and reliability of the entire system.

[0039] See also Figure 8 The overall cross-sectional shape of the linkage guide plate 673 is an isosceles triangle. The inclined surface of the linkage guide plate 673 is fitted and connected to the top of the guide plate 674. The shape of the isosceles triangle has good symmetry, which enables the linkage guide plate 673 to maintain a relatively consistent effect when interacting with the guide plate 674, regardless of the direction of action transmission, thereby improving the stability and reliability of the system. Secondly, the fitting connection between its inclined surface and the top of the guide plate 674 can ensure that the force transmission is more precise and effective. This tight fitting design reduces energy loss and makes the action response faster and more accurate. The isosceles triangle setting can flexibly adjust the disassembly and assembly, thereby improving the overall disassembly and assembly convenience of the device.

[0040] The working principle of the utility model is as follows: by setting the adjustment mechanism 5, the device can be operated during use by starting the first motor 53, and the first motor 53 is used to drive the gear 54 to rotate, and the gear 54 is meshed with the gear ring 52, and the gear ring 52 is meshed with the gear 54, and the gear 54 is rotated to drive the slide plate 3 to slide on the inner side of the annular groove 2, and because the annular groove 2 is circular as a whole, the slide plate 3 can be stably moved in an annular shape on the inner side of the annular groove 2 at this time, and the liquid level sensor can be driven to move in an annular shape by sliding the slide plate 3, and in the process of adjusting the movable displacement, the second motor 553 can also be started to operate, and the second motor 553 can be driven to move in an annular shape. The operation of the machine 553 can drive the rotating shaft 552 inside the base frame 551 to rotate, and the rotation of the rotating shaft 552 can drive the liquid level sensor body 4 inside the clamping mechanism 6 to rotate, and the liquid level sensor body 4 can be flexibly adjusted to adjust the angle. Its annular design can flexibly adjust the liquid level sensor body 4 to move inside the cylindrical water storage container. It can be seen that the annular design of the device can flexibly adapt to the circular water storage container, which can further improve the adaptability of the device during the overall use period, and can detect any position angle in the water storage container, which can improve the overall detection accuracy of the liquid level sensor, so that the non-contact liquid level sensor has high-precision detection performance;

[0041] By setting the clamping mechanism 6, when the liquid level sensor body 4 needs to be removed during use of the device, the sliding block 672 can be driven to slide by pushing the adjusting plate 675, and the inner side of the vertical rail 671 can be driven to slide by the sliding block 672. At this time, the movement of the linkage guide plate 673 can be flexibly adjusted by the displacement of the sliding block 672. The inclined surface of the linkage guide plate 673 contacts the top of the guide plate 674. The inclined surface of the linkage guide plate 673 can be used to guide the guide plate 674 to move, so that the guide plate 674 slides toward both sides. At this time, the guide plate 674 cooperates with the push plate 665 to drive the limit frame 664 to move toward both sides. The displacement of the limit frame 664 can pull the limit spring 663 to be in an extended state, and the end of the limit frame 664 is disengaged. At the point away from the card slot 661, the limit frame 664 and the card slot 661 are separated from each other. At this time, the limit between the mounting plate 65 and the mounting slot 64 is lost. At this time, the mounting plate 65 can be pulled out from the inside of the mounting slot 64. The liquid level sensor body 4 can be removed after the mounting plate 65 is pulled out. Similarly, if installation is required, the limit frame 664 can be separated through the above-mentioned adjustment. At this time, when the mounting plate 65 of the liquid level sensor body 4 is inserted into the inner side of the mounting slot 64, the adjustment plate 675 is loosened, and the limit spring 663 is reset to drive the limit frame 664 to be inserted into the inner side of the card slot 661. The limit plate and the card slot 661 are limited to each other, so as to assist in the card connection and installation of the liquid level sensor body 4, so that the overall disassembly and assembly of the device is more convenient, and the installation stability is stronger.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-precision non-contact liquid level sensor, characterized in that: It comprises an annular seat, an annular groove is formed on the outer side of the annular seat, a slide plate is slidably connected to the inner side of the annular groove, an adjustment mechanism is fixedly installed on the outer side of the slide plate, a clamping mechanism is fixedly installed on the bottom of the adjustment mechanism, and a liquid level sensor body is installed inside the clamping mechanism; The adjustment mechanism includes a side plate and a gear ring, the side plate is fixedly installed on the outer side of the skateboard, the gear ring is fixedly installed on the top of the annular seat, a first motor is fixedly installed on the bottom of the side plate, a gear is fixedly installed on the top output end of the first motor through the side plate, the gear and the gear ring are meshingly connected, an angle adjustment component is fixedly installed on the bottom of the side plate, and the bottom of the angle adjustment component is fixedly connected to the top of the clamping mechanism.

2. A high-precision non-contact liquid level sensor according to claim 1, characterized in that: The angle adjustment assembly includes a base frame, which is fixedly installed on the bottom of the side plate. The inner side of the base frame is rotatably connected to a rotating shaft. A second motor is fixedly installed on one side of the base frame. The output end of the second motor passes through the base frame and is fixedly connected to one side of the rotating shaft. The bottom of the rotating shaft is fixedly connected to a clamping mechanism.

3. A high-precision non-contact liquid level sensor according to claim 2, characterized in that: The clamping mechanism includes a connecting column, which is fixedly installed on the bottom of the rotating shaft, a mounting plate is fixedly installed on the bottom of the connecting column, a clamping frame is fixedly installed on the bottom of the mounting plate, mounting grooves are provided at both ends of the interior of the clamping frame, a mounting plate is slidably connected to the inner side of the mounting groove, the liquid level sensor body is installed between the inner sides of the mounting plates, a clamping assembly is fixedly installed on the middle part of the outer side of the clamping frame, and a linkage assembly is fixedly connected to the outer upper end of the clamping frame.

4. A high-precision non-contact liquid level sensor according to claim 3, characterized in that: The overall cross-sectional shape of the mounting plate is set in a convex shape, the overall cross-sectional shape of the mounting groove is also set in a convex shape, and the overall cross-sectional shape of the slide plate and the annular groove is also set in a convex shape.

5. A high-precision non-contact liquid level sensor according to claim 3, characterized in that: The card assembly includes a card slot and a side rail, the card slot is opened in the middle of both sides of the liquid level sensor body, the side rail is fixedly installed in the middle of the outer side of the card frame, the inner ends of the side rails are fixedly connected to limit springs, the ends of the limit springs are fixedly installed with limit frames, the top view shape of the limit frame is concave, and the ends of the limit frame are inserted into the inner side of the card slot.

6. A high-precision non-contact liquid level sensor according to claim 5, characterized in that: A push plate is fixedly installed on the outer side of the limiting frame, and the push plate is L-shaped when viewed from above.

7. A high-precision non-contact liquid level sensor according to claim 6, characterized in that: The linkage assembly comprises a vertical rail, which is fixedly mounted on the upper end of the card frame, a sliding block is slidably connected to the inner side of the vertical rail, a linkage guide plate is fixedly mounted on the bottom of the sliding block, and an adjustment plate is fixedly connected to the outer side of the sliding block.

8. A high-precision non-contact liquid level sensor according to claim 7, characterized in that: The inner end of the push plate is fixedly connected with a guide plate, the inner end of the guide plate is set to be semicircular, and the top of the guide plate is fitted and connected with the bottom inclined surface of the linkage guide plate.

9. A high-precision non-contact liquid level sensor according to claim 8, characterized in that: The overall cross-sectional shape of the linkage guide plate is an isosceles triangle, and the inclined surface of the linkage guide plate is fitted and connected to the top of the guide plate.

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