Capacitance type liquid level gauge

Abstract

The utility model relates to liquid level measurement technical field, concretely relates to capacitive liquid level meter, include, device main part, two clamping fixing pieces are respectively located device main body's both sides, two cooperation pieces all are located two clamping fixing pieces's back, two sliding blocks all slidingly connect in two cooperation pieces, two push rods all fixedly connect one end of two sliding blocks, two springs all fixedly connect in two cooperation pieces, the utility model discloses setting locking mounting spare at the both ends of liquid level meter head, can ensure the connection between equipment and container is more firm, effectively avoid the looseness problem caused by vibration, impact or long -term use, thereby keep measurement accuracy, simultaneously, the device simple structure does not contain any movable or elastic component, has higher reliability, maintenance quantity is small, is applicable to the liquid level measurement of high temperature high pressure container, and the measurement result is not influenced by the shape and pressure of the container where the measured liquid is.

Description

Technical Field

[0001] This utility model relates to the field of liquid level measurement technology, specifically to a capacitive liquid level gauge. Background Technology

[0002] In existing technology, capacitive level gauges are sensors that use the principle of capacitance to measure the position of liquids or solids. They determine the liquid level by detecting changes in capacitance, which are caused by the occupancy of the space between the probe and the container wall by media with different dielectric constants (such as air and liquid) when the liquid level changes. The patent application number "CN210513329U" describes a "capacitive level gauge". This utility model relates to a capacitive level gauge, which includes a controller, a level transmitter, a fixing device, an electrode tube, a display, a first electrode, a second electrode, and an auxiliary signal line. One end of the electrode tube is a blind end structure, and the other end is an open structure. A ceramic insulating gasket is provided between the blind end structure and the open structure. The first electrode is located inside the blind end structure, and the second electrode is located inside the open structure. The auxiliary signal line and the blind end structure are both fixed to the fixing device. The first electrode, the second electrode, and the auxiliary signal line are all connected to the level transmitter. The level transmitter and the display are both connected to the controller. The level transmitter collects the level values ​​of the first electrode and the second electrode and sends them to the controller. The controller controls the display to show the level value, so as to accurately measure the level value of viscous media.

[0003] The aforementioned patent has certain shortcomings in its use. It can only control the display to show the liquid level value so as to accurately measure the liquid level value of viscous media. However, its function is limited to basic display and lacks the ability to analyze and warn of liquid level change trends. It is difficult to meet the needs of intelligent control in industrial sites. At the same time, when dealing with high viscosity and particulate media, signal drift and response lag are prone to occur, affecting the measurement accuracy. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a capacitive liquid level gauge. The device has a simple structure, does not contain any moving or elastic parts, has high reliability, requires little maintenance, is suitable for liquid level measurement in high temperature and high pressure containers, and the measurement results are not affected by the shape and pressure of the container in which the measured liquid is located. It can effectively solve the problem of lack of analysis and early warning capabilities for liquid level change trends in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a capacitive level gauge, comprising: Main body of the device; An additional fixing mechanism is provided on both sides of the main body of the device. The additional fixing mechanism includes clamping and fixing parts, mating parts, sliders, push rods and springs. Two clamping and fixing parts are respectively provided on both sides of the main body of the device. Two mating parts are provided on the rear side of the two clamping and fixing parts. Two sliders are slidably connected in the two mating parts. Two push rods are fixedly connected to one end of the two sliders. Two springs are fixedly connected in the two mating parts.

[0006] Furthermore, each of the two mating parts has two fixed seats fixedly connected to its rear end, each of the two sliders has two pull rods fixedly connected to its rear end, and each of the two mating parts has two pull rods slidably connected inside its interior.

[0007] Furthermore, two fixing rings are fixedly connected to the outer surfaces of both mating parts, and an assembly is fixedly connected to the upper end of each of the two fixing rings.

[0008] Furthermore, a display screen is fixedly connected to one end of the main body of the device, and multiple switches are provided on one side of the main body of the device.

[0009] Furthermore, a docking component is fixedly connected to the lower end of the main body of the device, and a rotating threaded component is fixedly connected to the lower end of the docking component.

[0010] Furthermore, a measuring probe is fixedly connected to the lower end of the rotating threaded component.

[0011] The technical solution provided by this utility model has the following advantages compared with the known prior art: I. This device can be used for level transmitters of liquids, oils, and solid microparticles. With no moving parts, its reliability is greatly improved. It is minimally affected by water vapor, dust, or condensation, and features long-term stability and reliability, high sensitivity, good linearity, high temperature resistance, and high pressure resistance. It can be widely used in various fields such as petroleum, chemical, metallurgy, power, papermaking, and pharmaceutical.

[0012] 2. When an external force is applied to the push rod, the slider slides within the mating part, causing the clamping and fixing part to move inward or outward, thereby achieving the clamping or releasing action. The spring is located inside the mating part and connected to the slider, providing a restoring force after the external force is removed, so that the clamping and fixing part automatically returns to its original state. This linkage structure, through the combination of mechanical sliding and elastic reset, improves the convenience and stability of the level gauge during installation, effectively preventing loosening caused by external vibration or media disturbance, thereby ensuring the continuity and accuracy of the measurement process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a side perspective view of the present invention; Figure 3 The figure is for this utility model; Figure 4 This is a schematic diagram of the present invention; Figure 5 This is a schematic diagram of the present invention.

[0015] Reference numerals in the attached drawings: 1. Main body of the device; 2. Clamping and fixing component; 3. Mating component; 4. Slider; 5. Push rod; 6. Spring; 7. Fixing base; 8. Pull rod; 9. Fixing ring; 10. Assembly component; 11. Display screen; 12. Switch; 13. Connecting component; 14. Rotating threaded component; 15. Measuring probe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] The present invention will be further described below with reference to the embodiments.

[0018] See attached document Figures 1-5 Capacitive level gauge, including: Device body 1; An additional fixing mechanism is provided on both sides of the main body 1 of the device. The additional fixing mechanism includes clamping and fixing parts 2, mating parts 3, sliders 4, push rods 5 and springs 6. The two clamping and fixing parts 2 are respectively provided on both sides of the main body 1 of the device. The two mating parts 3 are both provided on the rear side of the two clamping and fixing parts 2. The two sliders 4 are slidably connected in the two mating parts 3. The two push rods 5 are fixedly connected to one end of the two sliders 4. The two springs 6 are fixedly connected in the two mating parts 3.

[0019] In a specific embodiment of this utility model, the main body 1 of the device serves as an overall support, with clamping and fixing members 2 on both sides for stable installation of the level gauge on the container. The rear sides of the two clamping and fixing members 2 are respectively connected to mating members 3, forming an intermediate structure for mechanical linkage. These mating members have internal sliding channels within which a slider 4 slides axially. A push rod 5 is fixedly installed at one end of the slider 4. When an external force is applied to the push rod 5, the slider 4 slides within the mating member 3, causing the clamping and fixing members 2 to move inward or outward, thereby achieving clamping or releasing. A spring 6 is located inside the mating member 3 and connected to the slider 4, providing a restoring force after the external force is removed, thus maintaining the clamping and fixing... Component 2 automatically resets to its original state. This linkage structure, combining mechanical sliding and elastic reset, improves the convenience and stability of the level gauge during installation, effectively preventing loosening caused by external vibration or media disturbance, thus ensuring the continuity and accuracy of the measurement process. This device can be applied to level transmitters for liquids, oils, and solid microparticles. With no moving parts, its reliability is greatly improved. It is minimally affected by water vapor, dust, or condensation, exhibiting long-term stability and reliability, high sensitivity, good linearity, high temperature resistance, and high pressure resistance. It can be widely used in various fields such as petroleum, chemical, metallurgy, power, papermaking, and pharmaceuticals. The housing material is 304 stainless steel. It operates on a power supply voltage of 18...30Vdc, and features wiring protection, reverse phase protection, overload protection, short circuit protection, IP67 protection rating, vibration resistance (10g / 0~500HZ), and shock resistance (50g / 1ms).

[0020] For details, please refer to the attached document. Figures 1-5 The rear ends of the two mating parts 3 are fixedly connected to two fixed seats 7, the rear ends of the two sliders 4 are fixedly connected to two pull rods 8, and the two mating parts 3 are slidably connected to two pull rods 8.

[0021] In this embodiment: In this structure, the fixed seat 7 serves as the connection fulcrum between the mating part 3 and the external structure. When the pull rod 8 moves with the slider 4, it slides inside the mating part 3, forming a mechanical linkage path. The forward and backward movement of the pull rod 8 drives the displacement of the slider 4 within the mating part 3, thereby controlling the range of motion of the clamping fixed part 2. This linkage method improves the stability and guiding accuracy of the structural movement, enhances the anti-eccentric load capability of the level gauge during installation and use, and ensures the reliability and repeatability of the clamping action.

[0022] For details, please refer to the attached document. Figures 1-5 Two fixing rings 9 are fixedly connected to the outer surfaces of the two mating parts 3, and the upper ends of the two fixing rings 9 are fixedly connected to the assembly parts 10.

[0023] In this embodiment, the fixing ring 9 serves as a connection transition between the mating part 3 and the assembly 10, enabling the assembly 10 to be stably installed outside the mating part 3. The assembly 10 and the mating part 3 form an integral linkage structure through the fixing ring 9. When the level gauge is subjected to external vibration or installation adjustment, the assembly 10 transmits the force through the fixing ring 9, enhancing the stability and load-bearing capacity of the overall structure. At the same time, it provides an installation interface for external auxiliary components, improving the structural adaptability and installation reliability of the level gauge under complex working conditions.

[0024] For details, please refer to the attached document. Figures 1-5 A display screen 11 is fixedly connected to one end of the main body 1 of the device, and multiple switches 12 are provided on one side of the main body 1 of the device.

[0025] In this embodiment: the display screen 11 is used to display liquid level measurement data in real time, and multiple switches 12 are integrated on the side of the main body 1 of the device to control different functional modes of the liquid level gauge. The display screen 11 and the switches 12 are connected through an internal circuit to realize the input of operation commands and the output of measurement information. This layout facilitates on-site operation and data reading by users, and improves the human-computer interaction efficiency and ease of use of the liquid level gauge.

[0026] For details, please refer to the attached document. Figures 1-5 The lower end of the main body 1 of the device is fixedly connected to a docking part 13, and the lower end of the docking part 13 is fixedly connected to a rotating threaded part 14.

[0027] In this embodiment, the docking part 13 serves as the connection transition between the main body 1 of the device and the rotating threaded part 14. The rotating threaded part 14 achieves detachable connection with other installation structures through threaded engagement, and also has a rotation adjustment function, which can be flexibly adjusted according to the angle of the container interface during installation to ensure that the measurement direction of the liquid level gauge probe is consistent with the container axis, thereby improving installation adaptability and measurement stability.

[0028] For details, please refer to the attached document. Figures 1-5 A measuring probe 15 is fixedly connected to the lower end of the rotating threaded part 14.

[0029] In this embodiment, the measuring probe 15 is detachably connected to the docking part 13 by rotating the threaded part 14. During installation, the orientation angle of the measuring probe 15 can be adjusted by rotation to adapt it to different installation interfaces. At the same time, rotating the threaded part 14 provides a fastening support to ensure that the measuring probe 15 maintains a stable position in the working state, ensuring the continuity and accuracy of liquid level measurement. The measuring probe 15 has a range length of 500mm, 1000mm, and 1500mm.

[0030] The working principle and usage process of this utility model are as follows: Initial positioning is achieved through clamping and fixing parts 2 on both sides of the main body 1. Clamping action is achieved through a sliding connection between the mating part 3 and the slider 4. The push rod 5 moves with the slider 4, driving the clamping structure to move. The spring 6 provides a restoring force to ensure the structure automatically returns to its initial state. The pull rod 8, slidably connected within the mating part 3, enhances the guiding accuracy and stability of the structural linkage. The fixing ring 9 fixes the assembly 10 to the outer surface of the mating part 3, providing installation support for the external auxiliary structure. The display screen 11 at one end of the main body 1 displays the liquid level data in real time. Function switching and parameter setting are performed through multiple switches 12 on the side. The lower end of the liquid level gauge is connected via a docking part 13. Rotating the threaded part 14, the measuring probe 15 is fixed to the lower end of the rotating threaded part 14. The angle of the measuring probe 15 is adjusted by rotation to achieve installation adaptation and ensure that the measuring direction is consistent with the axis of the container, thereby completing the stable and accurate measurement of the liquid level. This utility model, by setting locking installation parts at both ends of the liquid level gauge head, can ensure a more secure connection between the equipment and the container, effectively avoiding loosening problems caused by vibration, impact or long-term use, thereby maintaining measurement accuracy. At the same time, the device has a simple structure, does not contain any moving or elastic parts, has high reliability, low maintenance, is suitable for liquid level measurement of high temperature and high pressure containers, and the measurement results are not affected by the shape and pressure of the container where the measured liquid is located.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A capacitive level gauge, comprising, characterized in that : Device body (1); An additional fixing mechanism is provided on both sides of the main body (1) of the device. The additional fixing mechanism includes clamping and fixing parts (2), mating parts (3), sliders (4), push rods (5) and springs (6). The two clamping and fixing parts (2) are respectively provided on both sides of the main body (1). The two mating parts (3) are provided on the rear side of the two clamping and fixing parts (2). The two sliders (4) are slidably connected in the two mating parts (3). The two push rods (5) are fixedly connected to one end of the two sliders (4). The two springs (6) are fixedly connected in the two mating parts (3).

2. The capacitive level gauge according to claim 1, characterized in that, Two fixed seats (7) are fixedly connected to the rear ends of the two mating parts (3), and two pull rods (8) are fixedly connected to the rear ends of the two sliders (4). Two pull rods (8) are slidably connected inside the two mating parts (3).

3. The capacitive level gauge according to claim 2, characterized in that, Two fixing rings (9) are fixedly connected to the outer surfaces of the two mating parts (3), and an assembly (10) is fixedly connected to the upper end of the two fixing rings (9).

4. The capacitive level gauge according to claim 3, characterized in that, The device body (1) is fixedly connected to a display screen (11) at one end, and multiple switches (12) are provided on one side of the device body (1).

5. The capacitive level gauge according to claim 4, characterized in that, The lower end of the main body (1) of the device is fixedly connected to a docking part (13), and the lower end of the docking part (13) is fixedly connected to a rotating threaded part (14).

6. The capacitive level gauge according to claim 5, characterized in that, A measuring probe (15) is fixedly connected to the lower end of the rotating threaded part (14).

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