Self-balancing liquid level tracking floating fixture

Abstract

This utility model discloses a self-balancing liquid level tracking floating fixing device, belonging to the field of liquid level control and fluid sampling technology. It solves the technical problems of existing pipeline fixing methods, such as easy detachment, uncontrollable insertion depth, and inability to track the liquid level. It includes an integrated shell, which is hemispherical or semi-elliptical in shape. The interior is divided into an upper buoyancy chamber and a lower ballast chamber by a horizontal partition. An inlet is located on the lower side wall of the lower ballast chamber, and some designs also include an vent. A vertical pipeline fixing through-hole is located at the center of the shell, with an elastic clamping mechanism built into the upper end of the through-hole. Based on the principle of a self-balancing toy, this device forms a low center of gravity and high center of buoyancy structure, utilizing the communicating vessel effect to achieve synchronous liquid level tracking. The elastic clamping mechanism can firmly fix the pipeline and is easy to disassemble and assemble. It has advantages such as high stability, high reagent utilization, and convenient maintenance, and is suitable for pipeline fixing in scenarios such as water quality monitoring and laboratory analysis, making it highly practical.

Description

Technical Field

[0001] This utility model relates to the field of liquid level control and fluid sampling technology, specifically to pipeline fixing technology and liquid level tracking, and particularly to a self-balancing liquid level tracking floating fixing device for use in automatic monitoring equipment, which enables the pipeline to automatically track the liquid level and maintain the optimal insertion depth. It can be widely used in scenarios requiring liquid transfer, such as automatic water quality monitoring, environmental monitoring, and laboratory analysis. Background Technology

[0002] In fields such as automatic water quality monitoring, environmental monitoring, and laboratory physicochemical analysis, pipelines, as core liquid transmission components, undertake key tasks such as reagent delivery, waste liquid discharge, and water sample collection. The reliability of their fixing method directly affects the stability and accuracy of the entire monitoring or experimental process.

[0003] Currently, the industry generally lacks standardized and specialized devices for fixing pipelines. Most methods rely on makeshift, manually constructed fixation solutions, which can be broadly categorized into two types: First, the cap-perforation method, where operators manually poke a hole slightly larger than the pipeline's outer diameter in the center of the reagent bottle or sample bottle cap. The pipeline is then passed through the hole, and the friction between the inner wall of the hole and the outer wall of the pipeline secures it. Second, the silicone ring method, which utilizes silicone rings provided with some monitoring instruments. The pipeline is passed through the central hole of the silicone ring, and the elasticity of the silicone material holds the pipeline in place. The entire pipeline, including the silicone ring, is then inserted into the container opening for final fixation. In addition, some operators use DIY methods such as elastic sealing plugs or silicone adhesive to fix the pipeline, but these all suffer from common problems such as poor fixation stability, cumbersome operation, inability to track liquid levels, and susceptibility to contamination. In addition, there are a few existing pipe fixing devices. For example, patent application number 202211488084.9 discloses a liquid hose fixing clamp, which clamps the pipe through upper and lower clamps and a return spring. Although it can block the influence of swing force on the fluid, it can only achieve static fixing of the pipe and does not have the ability to track the liquid level. Patent application number 202421292567.6 proposes a multi-functional drain hose fixator, which mainly solves the problem of difficult storage of multiple tubes for critically ill patients. Its application scenario is in the medical field, which is incompatible with the liquid environment of water quality monitoring and laboratory analysis, and it does not have a buoyancy balance and liquid level tracking structure design.

[0004] However, these traditional fixing methods have many unavoidable drawbacks, which have become a technical bottleneck restricting the efficient implementation of automatic monitoring and experimental work:

[0005] First, the tubing is not securely fixed. During the pump's operation, the tubing is subjected to a continuous upward pulling force. Traditional fixing methods rely on limited friction or elastic clamping force, making it easy for the tubing to loosen, shift, or even detach from the reagent surface or bottle opening. Once the tubing detaches from the liquid surface, the pump will run dry, preventing liquid extraction, resulting in interrupted monitoring data and halted experimental procedures. If the tubing detaches from the bottle opening, it may also cause waste liquid to be discharged, polluting the experimental environment and threatening the personal safety of operators. This risk is significantly increased when transferring corrosive reagents such as strong acids and alkalis.

[0006] Secondly, the insertion depth is difficult to control precisely. When changing reagents, some reagents are stored in brown or black light-proof containers to avoid photodegradation, making it impossible for operators to visually observe the liquid level and tubing insertion status inside the container. Even when using transparent or white containers, the visual obstruction of the container body and the limited operating angle make it difficult to accurately control the insertion depth of the tubing. If the tubing is inserted too deeply, its end will touch the bottom of the container and tilt upwards, which can easily draw in impurities settled at the bottom of the container, causing blockages, and may also lead to poor liquid transfer due to tubing bends. If inserted too shallowly, as the reagent level drops due to consumption, the tubing inlet will be quickly exposed to air, causing problems such as pump cavitation and instrument errors, interrupting the entire testing process.

[0007] Third, dynamic tracking of the liquid level is impossible. As reagents are continuously consumed, the liquid level in the container gradually drops. However, in traditional fixed-position methods, the tubing remains fixed relative to the container and cannot move down in sync with the drop in liquid level. This results in a large amount of reagent remaining at the bottom of the container that cannot be extracted, leading to a significant waste of valuable experimental reagents or monitoring water samples. This is especially true for high-cost standard reagents or rare water samples, where the economic losses and resource waste are even more pronounced. On the other hand, some reagents may develop impurities during long-term storage. If the tubing is initially inserted too deeply and comes into contact with the sediment layer, the probability of tubing blockage will increase significantly, reducing the operational stability of the equipment. If the initial insertion depth is too shallow, the drop in liquid level may cause cavitation problems, creating a dilemma.

[0008] Fourth, there is a lack of consistency and standardization in operation. Traditional fixing methods rely heavily on the manual skills and experience of operators. Different operators have different operating techniques, resulting in variations in the tightness of pipe fixing and the insertion depth, making it difficult to ensure consistency in operation. This human error introduces additional experimental errors, affecting the accuracy of monitoring data and the repeatability of experimental results. It also hinders the standardized management of experimental and monitoring procedures.

[0009] Fifth, the ease of maintenance is insufficient. When tubing is secured by methods such as cable ties or perforated bottle caps, it is often necessary to damage the original securing structure when reagents need to be replaced or the tubing needs to be maintained. This often involves cutting the cable ties or replacing the bottle caps, which is not only cumbersome and time-consuming, but also generates additional consumables and increases the operating costs of experiments and monitoring.

[0010] In summary, existing pipeline fixing methods have shortcomings in terms of robustness, accuracy, adaptability, standardization, and convenience. There is an urgent need for a device that can achieve stable pipeline fixing, controllable insertion depth, and automatic liquid level tracking to address industry pain points and improve the efficiency and reliability of automatic monitoring and laboratory analysis. Utility Model Content

[0011] In view of the above-mentioned defects in the existing technology, the purpose of this utility model is to provide a self-balancing liquid level tracking floating fixing device, which achieves the technical goals of controllable pipeline insertion depth, firm pipeline fixing, full utilization of reagents, environmentally friendly and safe operation, and high equipment stability. At the same time, it has the advantages of convenient operation, simple maintenance and wide applicability, effectively solving many drawbacks of existing pipeline fixing methods.

[0012] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0013] A self-balancing liquid level tracking floating fixing device includes an integrated shell. A horizontal partition is provided in the inner cavity of the integrated shell, which divides the inner cavity of the integrated shell into an upper buoyancy chamber and a lower ballast tank. A pipe fixing through hole is provided at the center of the inner cavity of the integrated shell, which vertically penetrates the upper buoyancy chamber, the horizontal partition, and the lower ballast tank. An elastic clamping mechanism is provided inside the upper end of the pipe fixing through hole. The lower side wall of the lower ballast tank has uniformly distributed water inlets.

[0014] Preferably, the integrated outer shell has a hemispherical structure, and the upper buoyancy chamber and the lower ballast chamber together form a low center of gravity and high center of buoyancy self-sustaining mechanism, which can effectively resist the tilting caused by liquid surface fluctuations and pipeline tension, and ensure the stability of the device.

[0015] Preferably, the buoyancy chamber is a sealed cavity filled with air, which can provide stable and sufficient buoyancy for the entire device, ensuring that the device can float on the surface of the reagent or water sample.

[0016] Preferably, the number of water inlets is four to six, and the water inlets are evenly distributed in a ring at the same height along the side wall of the lower ballast tank, which can ensure that external liquid can enter the lower ballast tank quickly and evenly to form a stable ballast counterweight.

[0017] Preferably, the elastic clamping mechanism includes a plurality of elastic clips arranged around the central axis of the pipeline fixing through hole, the elastic clips extending obliquely toward the central axis of the pipeline fixing through hole, and the inner diameter of the through hole formed by the elastic clips in the natural state is smaller than the outer diameter of the reagent pipeline.

[0018] Preferably, at least one vent is provided on the top of the side wall of the lower ballast tank, the diameter of the vent is smaller than the diameter of the water inlet, and the vent is evenly distributed along the side wall of the lower ballast tank.

[0019] Preferably, the integrated shell has a semi-elliptical structure, and the positions of the upper buoyancy cavity, lower ballast chamber, and pipeline fixing through holes are consistent with those of the hemispherical integrated shell.

[0020] Preferably, the elastic clamping mechanism is an elastic plug, which has a cylindrical structure. The central axis of the elastic plug has a through hole for the pipeline to pass through, and the elastic plug is pressed into the pipeline fixing through hole by an interference fit.

[0021] Preferably, the integrated housing is made of one of polypropylene, polyethylene, polyoxymethylene or polyvinylidene fluoride, and the integrated housing is made by an integrated injection molding process. The appropriate material can be selected according to different usage scenarios and chemical environment requirements to ensure the corrosion resistance and mechanical strength of the device.

[0022] Preferably, the elastic clip and the integrated shell are integrally formed, and the material of the elastic clip is the same as that of the integrated shell.

[0023] The self-balancing liquid level tracking floating fixing device of this invention has many practical and beneficial effects compared with the prior art, as follows:

[0024] 1. Enhance the reliability and operational stability of pipeline installations to ensure the continuity of monitoring and experimental procedures.

[0025] In existing technologies, fixing methods such as bottle cap perforations and silicone rings rely on limited friction or elastic force, which is insufficient to withstand the pulling force of the pump body, easily leading to pipe detachment or displacement, resulting in monitoring interruption and experimental failure. This invention, through the design of an elastic clamping mechanism, uses elastic clips or plugs to create a uniform clamping force on the pipe in the circumferential direction. The resulting static friction effectively counteracts the upward pulling force of the pump body, achieving stable pipe fixation and reducing the risk of pipe detachment or displacement. Simultaneously, the device's low center of gravity and high center of buoyancy structure, designed based on the principle of a self-righting toy, effectively mitigates disturbances caused by liquid surface fluctuations and external forces, ensuring the device remains in a stable floating state, preventing tipping or overturning, and further maintaining the stability of the pipe position.

[0026] 2. Achieve stable liquid level tracking and insertion depth, improving reagent utilization and reducing the possibility of tubing blockage.

[0027] Traditional fixing methods cannot adjust the tubing position as the liquid level drops, easily leading to reagent residue at the bottom of the container. Furthermore, improper insertion depth can cause cavitation or blockage. This invention utilizes the communicating vessel effect to achieve synchronous downward movement of the device and the liquid level, ensuring the tubing inlet is always at a suitable depth below the liquid surface. This avoids cavitation interruptions caused by liquid level drops and allows for full extraction of reagent from the bottom of the container, improving reagent utilization. Simultaneously, because the tubing inlet remains at a fixed depth below the liquid surface, it avoids contact with sediment at the bottom of the bottle due to excessive insertion, and also prevents exposure to air due to insufficient insertion, reducing the probability of tubing blockage.

[0028] 3. Simplify operating procedures, improve operational standardization and consistency, and reduce human error.

[0029] Existing methods of securing pipelines are highly dependent on the experience and skill of operators, and differences in operation among different personnel can easily introduce experimental errors. Furthermore, the operation procedures are relatively cumbersome. The device of this invention enables rapid installation and disassembly of pipelines without the need for specialized tools or complex skills. Ordinary operators can complete the standardized operation after simple training. During installation, simply insert the pipeline into the through-hole and push it to the specified length to secure it. During disassembly, rotating and applying upward force allows the pipeline to be removed. The entire process takes only 10-20 seconds, significantly improving operational efficiency compared to traditional methods such as cable ties and bottle cap perforations. Simultaneously, the device ensures consistent pipeline insertion depth each time, reducing errors caused by human error and contributing to improved repeatability and accuracy of experimental and monitoring data.

[0030] 4. Possesses excellent corrosion resistance and environmental adaptability, expanding the applicable scenarios for the device.

[0031] The integrated shell of this invention can be made of different engineering plastics such as polypropylene, polyethylene, polyoxymethylene, and polyvinylidene fluoride through one-piece injection molding, depending on the application scenario. Polypropylene combines good hydrophobicity, chemical corrosion resistance, and mechanical strength, meeting the requirements for the transfer of conventional reagents and water samples. Polyvinylidene fluoride exhibits good resistance to strong acids, strong alkalis, and strong oxidizing reagents, making it suitable for scenarios such as chemical wastewater monitoring and experiments with highly corrosive reagents. Polyoxymethylene possesses excellent wear resistance, extending the service life of the elastic clamping mechanism and making it suitable for scenarios involving frequent disassembly and assembly of pipelines. Furthermore, the device's structure can be flexibly adjusted to a hemispherical or semi-elliptical shape. The hemispherical structure offers better stability and is suitable for conventional containers; the semi-elliptical structure can adapt to special containers with limited space, solving the problem of difficult placement of the device in confined spaces. In addition, the device's elastic clamping mechanism can be replaced with elastic clips or elastic plugs as needed. Elastic clips are suitable for scenarios requiring a certain fixing force, while elastic plugs offer better sealing performance and ease of maintenance, meeting the personalized needs of different scenarios. This device is compatible with most standard containers and pipelines, and its application scope covers fields such as automatic water quality monitoring, environmental monitoring, laboratory physicochemical analysis, and chemical reagent transmission. It has good environmental adaptability and scenario compatibility.

[0032] 5. Reduce operating costs and achieve equipment reuse and environmentally friendly operation.

[0033] Traditional pipe fixing methods often require disposable consumables such as cable ties, bottle caps, and silicone rings, and the entire pipe needs to be replaced if damaged, resulting in high operating costs. Furthermore, pipe detachment can lead to waste liquid discharge and environmental pollution. This invention utilizes a one-piece injection molding process, resulting in a robust and durable structure that can be reused without the need for disposable consumables. The elastic clamping mechanism allows for non-destructive installation and removal of the pipes, minimizing damage to the pipes and device during adjustments or replacements, thus extending their service life. In addition, the stable fixing of the device reduces waste liquid discharge due to pipe detachment, lowering pollution to the experimental and monitoring environment. It also reduces the safety hazards to operators from the discharge of corrosive reagents, enabling green and safe operation that meets the environmental and safety management requirements of modern laboratories and monitoring stations. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the device according to Embodiment 1 of this utility model;

[0035] Figure 2 This is an enlarged schematic diagram of the elastic clamping mechanism in Embodiment 1 of this utility model;

[0036] Figure 3 This is a three-dimensional structural diagram of the device according to Embodiment 2 of this utility model;

[0037] In the diagram: 1-Upper buoyancy chamber, 2-Lower ballast tank, 3-Horizontal bulkhead, 4-Pipeline fixing through hole, 5-Elastic clamping mechanism, 6-Water inlet, 7-Elastic clamping plate, 8-Exhaust port. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the protection scope of the present invention is not limited to the following embodiments, and all equivalent transformations made based on the technical solution of the present invention should be included in the protection scope of the present invention.

[0039] Example 1 (Hemispherical shell + elastic clip + structure without vent holes)

[0040] like Figure 1 , 2 As shown, the self-balancing liquid level tracking floating fixing device of this embodiment has a one-piece hemispherical shell, which is made of polypropylene material through one-piece injection molding. The horizontal partition 3 inside the shell divides it into an upper buoyancy chamber 1 and a lower ballast chamber 2. The upper buoyancy chamber 1 is a sealed cavity filled with air. The lower ballast chamber 2 has four water inlets 6 evenly distributed at the same height on the lower side wall, and the diameter of the water inlets 6 is 3 mm. The pipeline fixing through hole 4 in the center of the shell vertically penetrates the upper buoyancy chamber 1, the horizontal partition 3 and the lower ballast chamber 2. The elastic clamping mechanism 5 at the upper end of the pipeline fixing through hole 4 consists of 6 elastic clips 7 that extend obliquely around the central axis. The elastic clips 7 are integrally molded with the shell. In the natural state, the inner diameter of the through hole formed by the clips is 3 mm, which is suitable for reagent pipelines with an outer diameter of 4 mm.

[0041] The device in this embodiment was tested in an automatic water quality monitoring scenario. After the device was installed with pipelines, it was placed in a container containing the water sample to be monitored. The device reached a stable floating state within 3 seconds. During the continuous 48-hour water sample extraction process, the liquid level in the container dropped from an initial 20 cm to 5 cm. The device always tracked the liquid level synchronously, and the pipeline inlet remained at a depth of 2 cm below the liquid level without any instances of emptying the container. After the experiment, the amount of water sample remaining at the bottom of the container was less than 1 ml, and the water sample utilization rate reached 99%. Throughout the experiment, the pipeline did not shift or detach, and the device did not tip over, demonstrating stable and reliable operation.

[0042] Example 2 (Hemispherical shell + elastic clip + structure with vent)

[0043] like Figure 3 As shown, the device structure in this embodiment is basically the same as that in embodiment 1. The difference is that two exhaust holes 8 are evenly opened at the same height on the top of the side wall of the lower ballast tank 2. The diameter of the exhaust hole 8 is 2 mm, which is smaller than the 3 mm diameter of the water inlet 6.

[0044] In the test of this embodiment, during the water intake phase, the air in the ballast tank can be quickly discharged through the vent, and the liquid fills the ballast tank within 2 seconds. The time for the device to reach a stable state is shortened by 30% compared to Embodiment 1. When the device is removed from the container, the liquid in the ballast tank can be completely discharged within 10 seconds, with no liquid residue. Compared to Embodiment 1 without a vent, the drainage efficiency is improved by more than 50%, and there is no negative pressure residue inside the device, making cleaning more convenient and effectively avoiding corrosion and contamination of the device by residual liquid.

[0045] Example 3 (Semi-elliptical shell + elastic plug structure)

[0046] The device structure in this embodiment is basically the same as that in Embodiment 2, except that the integrated shell in this embodiment is semi-elliptical and is integrally injection molded from polyvinylidene fluoride material, making it suitable for the transmission of highly corrosive reagents. Six water inlets are provided on the lower part of the side wall of the lower ballast tank, and three vent holes are provided on the top of the side wall. The elastic clamping mechanism inside the pipe fixing through-hole is an elastic plug made of silicone material. The elastic plug is pressed into the through-hole with an interference fit, and the diameter of its central through-hole is 3 mm, suitable for corrosion-resistant pipes with an outer diameter of 4 mm.

[0047] The device in this embodiment exhibits excellent corrosion resistance in strong acid reagent transfer experiments. After continuous contact with a 5 mol / L hydrochloric acid solution for 72 hours, the device showed no deformation or corrosion, and the clamping force of the elastic plug did not significantly decrease. The semi-elliptical structure of the device can be easily placed in narrow reagent storage cabinets, solving the problem of placement in special spaces. The elastic plug can be quickly replaced after aging and damage, resulting in low maintenance costs and short replacement time, which greatly improves the maintenance efficiency of the device.

[0048] The technical principle of this invention's self-balancing liquid level tracking floating fixing device is as follows:

[0049] The self-balancing liquid level tracking floating fixing device of this utility model is based on the balance principle of buoyancy, gravity and tension, and combines the stabilizing structure of a self-righting toy and the communicating vessel effect to achieve stable fixing of the pipeline and automatic tracking of the liquid level. The specific principle is as follows:

[0050] 1. Buoyancy-Gravity Balance and the Stability Principle of a Roly-Toy

[0051] The device's integrated outer shell is divided into an upper buoyancy chamber and a lower ballast tank by a horizontal partition. The upper buoyancy chamber is a sealed cavity filled with air, providing upward buoyancy and allowing the entire device to float on the liquid surface. The water inlet on the lower side wall of the lower ballast tank allows external liquid to automatically flow into the tank based on the static pressure difference. As the amount of liquid in the tank increases, the overall weight of the device increases, and the center of gravity gradually shifts downward. When the liquid levels inside and outside the ballast tank are equal and water intake stops, the device reaches a stable equilibrium state. At this point, the upper buoyancy chamber forms a high center of buoyancy, and the lower ballast tank forms a low center of gravity. Together, they form a "low center of gravity, high center of buoyancy" self-sustaining structure, which can generate sufficient restoring torque to quickly suppress tilting caused by external disturbances such as liquid surface fluctuations and pump suction, ensuring that the device always maintains a stable floating posture and avoids tipping or capsizing.

[0052] In embodiments equipped with vents, during water intake, air in the ballast tank can be smoothly discharged through the vents, preventing air from being compressed at the top of the tank and forming an "airlock," ensuring that liquid enters the ballast tank quickly and smoothly, enabling the device to obtain stable counterweight within seconds. When the device is removed from the container, the liquid in the ballast tank is discharged from the inlet under gravity, and external air can enter the tank through the vents, eliminating the negative pressure generated during drainage, ensuring complete and rapid discharge of liquid, and facilitating cleaning and subsequent reuse of the device.

[0053] 2. The Communicating Vessel Effect and the Principle of Automatic Liquid Level Tracking

[0054] The lower ballast tank is connected to the liquid in the external container via an inlet, forming a simple communicating vessel structure. When the pump operates to extract reagents, causing the liquid level in the container to drop, the liquid level inside the ballast tank will drop synchronously with the external liquid level through the inlet. This change instantly disrupts the original balance of buoyancy and gravity, making the buoyancy slightly greater than the total weight of the device. Driven by this buoyancy difference, the device will move downwards synchronously, tracking the falling liquid level until a new balance of buoyancy and gravity is achieved at the new liquid level. This process continuously cycles as the liquid level continues to drop, ensuring that the pipeline inlet is always submerged at a fixed depth below the liquid surface, achieving automatic liquid level tracking without manual intervention.

[0055] 3. Principle of elastic clamping and pipeline fixing

[0056] The elastic clamping mechanism at the upper end of the pipeline fixing through-hole, whether it's an elastic clamp or an elastic plug, can firmly fix the pipeline. For the elastic clamp structure, when the pipeline is inserted downwards, it compresses the clamp, causing it to deform elastically. The radial clamping force generated by the clamp acts evenly on the outer wall of the pipeline in a 360-degree direction, forming a stable static friction force. This friction force effectively overcomes the upward pulling force generated when the pump is drawing liquid, preventing the pipeline from being pulled up, shifted, or ejected. When it is necessary to disassemble or adjust the pipeline, simply pinch the pipeline and slowly apply upward force to overcome the clamping force of the clamp, achieving non-destructive removal of the pipeline. For the elastic plug structure, it is pressed into the pipeline fixing through-hole through an interference fit, using the clamping force generated by the deformation of the elastic material to fix the pipeline. It also has good sealing performance, a simple structure, low cost, and can be quickly replaced after damage, making maintenance convenient.

[0057] How to use the self-balancing liquid level tracking floating fixing device of this utility model:

[0058] The self-balancing liquid level tracking floating fixing device of this utility model has a clear usage process and is easy to operate, requiring no professional tools. Specifically, it can be divided into three stages: installation, use, and maintenance.

[0059] 1. Piping installation

[0060] First, align the inlet end of the reagent tubing with the tubing fixing through-hole on the top of the integrated housing, and apply even downward pressure to allow the tubing to pass through the elastic clamping mechanism within the through-hole. Continue pushing the tubing until the inlet end extends 2-3 cm from the bottom of the lower ballast chamber. At this point, the elastic clamping mechanism will automatically grip the tubing, completing a secure connection between the tubing and the device. If an elastic plug-type clamping mechanism is used, first press the elastic plug into the tubing fixing through-hole, then pass the tubing through the center through-hole of the elastic plug, ensuring there is no noticeable gap between the tubing and the elastic plug to guarantee a secure fit.

[0061] 2. Equipment Placement and Operation

[0062] Gently place the pre-installed floating device onto the surface of the reagent or water sample. The device will float autonomously using the buoyancy of the upper buoyancy chamber. Subsequently, external liquid flows into the lower ballast chamber through the inlet, and the device reaches a stable floating state within seconds. During normal monitoring or experiments, the device will automatically rise and fall with changes in the liquid level, achieving constant control of the pipeline inlet depth without manual intervention, ensuring the continuity and stability of liquid transmission.

[0063] 3. Equipment maintenance and pipeline adjustment

[0064] When reagents need to be changed, tubing replaced, or the device needs cleaning and maintenance, simply remove the floating fixing device entirely from the container's opening. Residual liquid in the ballast tank will automatically drain from the inlet under gravity. To adjust the tubing extension length, hold the integrated housing with one hand and the tubing with the other, using a combination of rotation and slow upward force to overcome the clamping force of the elastic clamping mechanism and pull the tubing out. After adjusting to the appropriate length, reinsert the tubing into the clamping mechanism. The entire process will not damage the tubing or the device, allowing for multiple reuses. If the elastic clamping mechanism is damaged (e.g., broken elastic clips or aged elastic plugs), the corresponding component can be replaced directly. For integrated elastic clip structures, the entire integrated housing can be replaced to ensure continuous and normal operation of the device.

[0065] The core innovation of this self-balancing liquid level tracking floating fixing device lies in integrating the buoyancy mechanism, ballast mechanism, and clamping mechanism into one unit, achieving coordinated operation of self-balancing, liquid level tracking, and pipeline fixing. In actual production and application, the structure and materials of the device can be flexibly adjusted according to specific usage requirements, such as changing the number of inlets and vents, adjusting the tilt angle of the elastic clamps, and replacing the outer shell and clamping mechanism with different materials, all of which fall within the protection scope of this utility model.

[0066] The self-balancing liquid level tracking floating fixing device of this utility model has a simple manufacturing process and can be mass-produced using conventional injection molding equipment. The production cost is controllable, and the device has a long service life, low maintenance cost, and simple installation, use and maintenance process. It can effectively solve many defects of existing pipeline fixing methods, meet the pipeline fixing and liquid level tracking needs in fields such as automatic water quality monitoring, environmental monitoring, and laboratory analysis, and has significant industrial applicability and economic benefits. It can be widely used in production and scientific research in related industries.

[0067] The above description provides a further detailed explanation of this utility model, but it should not be construed as limiting the scope of the utility model to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this utility model, and all such modifications or substitutions should be considered to fall within the patent protection scope defined by the submitted claims.

Claims

1. A self-balancing liquid level tracking floating fixture, characterized by, The device includes an integrated outer shell, in which a horizontal partition is provided in the inner cavity, dividing the inner cavity of the integrated outer shell into an upper buoyancy chamber and a lower ballast tank; a pipe fixing through hole is provided at the center of the inner cavity of the integrated outer shell, which vertically penetrates the upper buoyancy chamber, the horizontal partition and the lower ballast tank, and an elastic clamping mechanism is provided inside the upper end of the pipe fixing through hole; and the lower side wall of the lower ballast tank has evenly distributed water inlets.

2. The self-balancing level tracking floating fixture of claim 1, wherein, The integrated outer shell has a hemispherical structure, and the upper buoyancy cavity and the lower ballast chamber together form a low center of gravity and high center of buoyancy self-sustaining mechanism.

3. The self-balancing liquid level tracking floating fixing device according to claim 1, characterized in that, The upper buoyancy cavity is a sealed cavity filled with air to provide buoyancy for the device.

4. The self-leveling liquid level tracking float fixture of claim 1, wherein, The number of water inlets is four to six, and the water inlets are evenly distributed in a ring at the same height along the side wall of the lower ballast tank.

5. The self-leveling level tracking float fixture of claim 1, wherein, The elastic clamping mechanism includes a plurality of elastic clips arranged around the central axis of the pipeline fixing through hole. The elastic clips extend at an inclination toward the central axis of the pipeline fixing through hole, and the inner diameter of the through hole formed by the elastic clips in their natural state is smaller than the outer diameter of the reagent pipeline.

6. The self-leveling liquid level tracking float fixture of claim 1, wherein, At least one vent is provided on the top of the side wall of the lower ballast tank. The diameter of the vent is smaller than the diameter of the water inlet, and the vents are evenly distributed along the side wall of the lower ballast tank.

7. The self-leveling liquid level tracking float fixture of claim 1, wherein, The integrated shell has a semi-elliptical structure, and the positions of the upper buoyancy cavity, lower ballast chamber, and pipeline fixing through holes are consistent with the hemispherical integrated shell structure.

8. The self-leveling liquid level tracking floating fixture of claim 1, wherein, The elastic clamping mechanism is an elastic plug, which is a cylindrical structure. The central axis of the elastic plug has a through hole for the pipeline to pass through. The elastic plug is pressed into the pipeline fixing through hole by an interference fit.

9. The self-leveling level tracking float fixture of claim 1, wherein, The integrated shell is made of one of polypropylene, polyethylene, polyoxymethylene or polyvinylidene fluoride, and the integrated shell is made by an integrated injection molding process.

10. The self-leveling liquid level tracking floating fixture of claim 5, wherein, The elastic clip and the integrated shell are integrally formed, and the material of the elastic clip is the same as that of the integrated shell.

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