A mobile liquid level meter

CN224839082UActive Publication Date: 2026-10-09PETROCHINA CO LTD
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Patent Information

Application Number
CN202522622510.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-10
Publication Date
2026-10-09
Estimated Expiration
2035-12-10

AI Technical Summary

Technical Problem

[0007]上述液位计存在结构复杂,不易操作等问题,油田化学作业现场急需一种结构简洁、操作便捷的液位计,既能快速精准反馈容器内液面高度,又能降低操作门槛、保障使用安全,满足现场高效作业与安全防控的双重需求

Benefits of technology

组装和测量操作简单,实用快捷,方便携带,安全可靠,省时省力,能够精确显示罐车拉油或拉水时的液面高度,减少了工人爬上罐车顶部观察液面高度的工作强度,避免了高空坠落或不慎落入罐里等安全事故的发生。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mobile liquid level meter belongs to liquid level measurement technical field. Technical scheme includes the float device of movable setting in the cylinder, and the float device is connected in the bottom of connecting rod, and the connecting rod surface is equipped with the scale, and the connecting rod top extends to the cylinder outside top, and the cylinder bottom has opened the liquid inlet. The utility model has the beneficial effects of including: simple assembling and measurement operation, practicality is quick, and the safe and reliable, save time and effort, can accurate display the liquid level height when tank car draws oil or draws water, reduced the work intensity that worker climbed the top observation liquid level height of tank car, avoided the high altitude fall or the occurrence of such as the safety accident of falling into the jar by accident.
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Description

Technical Field

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

[0002] In practical oilfield chemical operations, tank trucks, water storage tanks, and other liquid containers are indispensable core equipment, widely used for the storage and transfer of various liquids such as drilling fluids, fracturing fluids, and chemical agents. Due to limitations in the operating environment, equipment structure, and working conditions, these containers are generally not equipped with directly visible liquid level gauges.

[0003] For tank trucks, operators need to climb to the top of the tank and manually probe the interior through observation ports or with the aid of tools such as measuring ropes and probes to determine the liquid level. During this process, the working space on the top of the tank is narrow and susceptible to weather conditions such as wind and rain, posing a risk of falls from height to the operators. If proper protection is not provided or attention is not maintained, accidents may occur where operators fall into the tank.

[0004] The fixed containers used in on-site construction, such as water storage tanks, also lack accurate liquid level monitoring equipment. The liquid level can only be determined by manually climbing to a height or bending down to check the tank opening. This is not only cumbersome and inefficient, but also poses similar risks of working at height and the danger of tanks falling, posing a significant challenge to on-site construction safety.

[0005] RU2536835C1 discloses an inductive level gauge comprising an excitation winding and a measuring winding, housed within a protective enclosure immersed in a controlled medium. The instrument features a hollow axial channel within the protective enclosure, fixed to the coils of the excitation and measuring windings, and a movable level indicator that moves within the hollow axial channel. The movable level gauge is designed as a rod, with a sensor consisting of a set of inductively coupled coils at one end and an electrical connector connected to the output of the sensor coil at the other end. The rod connection is fixed to the protective enclosure at any point within the range of level variation. Advantages: In the harsh temperature and radiation environment of nuclear reactors, this level gauge provides the required metrological characteristics, operational reliability, and long service life.

[0006] CN216976442U discloses a poolside mobile level gauge installation device, including a vehicle body upper plate, an auxiliary support, and a mounting bracket. The vehicle body upper plate is provided with the mounting bracket and the auxiliary support. An electric push rod is rotatably mounted in the groove of the mounting bracket. One end of the electric push rod is provided with an adapter block, which is hinged to the telescopic end of a cylinder. The other end of the cylinder is connected to a mounting guide seat provided on one side of the mounting bracket. Under the action of the electric push rod and the lead screw drive mechanism, this poolside mobile level gauge installation device facilitates the adjustment of the level gauge position, which can not only increase the measurement range of the level gauge, but also improve the safety factor of later inspection and maintenance, and effectively ensure the safety of operators. Through the cooperation of components such as the cylinder, the first-stage hinge seat, and the strip telescopic plate, the ultrasonic beam is effectively ensured to be perpendicular to the pool surface, ensuring the accuracy of detection.

[0007] The aforementioned level gauges suffer from problems such as complex structure and difficulty in operation. Oilfield chemical operations urgently need a level gauge with a simple structure and convenient operation that can quickly and accurately reflect the liquid level in the container, reduce the operating threshold, ensure safe use, and meet the dual needs of efficient on-site operations and safety control. Utility Model Content

[0008] To address the shortcomings of existing technologies, the purpose of this invention is to provide a mobile liquid level gauge.

[0009] The technical solution of this utility model is: a mobile liquid level gauge, including a floating device that is movable and set inside the cylinder. The floating device is connected to the bottom of a connecting rod. The surface of the connecting rod is provided with a scale. The top of the connecting rod extends to the top of the cylinder. The bottom of the cylinder has a liquid inlet.

[0010] The top of the cylinder is fixed with a top cover, and the connecting rod passes through the top cover.

[0011] The top cover is threadedly connected to the cylinder.

[0012] The floating device is a float.

[0013] The float is threadedly connected to the connecting rod.

[0014] The bottom end of the connecting rod is connected to the middle of the float.

[0015] The upper cover has a straightening cylinder in the middle, and the connecting rod passes through the straightening cylinder.

[0016] The top cover is equipped with hooks on its side.

[0017] The liquid inlet is located on the lower or side surface of the cylinder.

[0018] The top of the connecting rod is threadedly connected to the retaining ring.

[0019] The beneficial effects of this utility model include: Assembly and measurement are simple, practical, quick, portable, safe, reliable, time-saving, and labor-saving. It can accurately display the liquid level when a tanker is carrying oil or water, reducing the workload of workers climbing to the top of the tanker to observe the liquid level and preventing accidents such as falls from heights or accidental falls into the tank. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention.

[0021] The attached figures are labeled as follows: 1. Cylinder body; 2. Connecting rod; 3. Scale; 4. Liquid inlet; 5. Top cover; 6. Float; 7. Straightening cylinder; 8. Hook; 9. Clamping ring. Detailed Implementation

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] The following is in conjunction with the appendix Figure 1 Further explanation of this utility model: A portable level gauge, entirely made of low-density PVC plastic, includes a movable float 6 housed within a cylindrical body 1. The center of the float 6 is threadedly connected to the bottom of a connecting rod 2. When liquid enters the cylindrical body 1, the float 6 floats on the liquid surface. The connecting rod 2 has graduations 3 on its surface and can move up and down relative to the cylindrical body 1 as the float 6 rises and falls with the liquid level. The top of the connecting rod 2 extends to the top of the outer surface of the cylindrical body 1. A liquid inlet 4 is provided on the lower or side surface of the bottom of the cylindrical body 1. A top cover 5 is fixed to the top of the cylindrical body 1, and the connecting rod 2 extends through the top cover 5 into the cylindrical body 1. The top cover 5 is threadedly connected to the cylindrical body 1. A centering cylinder 7 is provided in the middle of the top cover 5, through which the connecting rod 2 passes. The centering cylinder 7 provides centering for the connecting rod 2, preventing it from tilting relative to the cylindrical body 1. The top cover 5 has a hook 8 on its side. The cylinder 1 can be hooked and fixed to the top outlet of a large container holding liquid via the hook 8. The large container can be a tank on a tanker truck, a liquid storage tank, etc. The liquid stored in the container can be water or oil, etc. The length of the cylinder 1 is the same as the height of the hook 8 relative to the bottom of the container. The top of the connecting rod 2 is threadedly connected and fixed to the retaining ring 9. The retaining ring 9 is larger than the size of the centering port so that the retaining ring 9 will not fall into the centering port. The outer diameter of the float 6 is 1-2 cm smaller than the inner diameter of the cylinder 1, so that the float 6 can float up and down inside the cylinder 1, while preventing the float 6 from moving laterally relative to the cylinder 1. The outer diameter of the connecting rod 2 is 1-2 cm smaller than the inner diameter of the centering port, so that the connecting rod 2 can move up and down relative to the centering port, while preventing the connecting rod 2 from moving laterally relative to the centering port.

[0027] Taking a tanker truck as an example, when using this level gauge, first attach the hook 8 to the top outlet of the tanker truck. The tank outlet has an upward-extending barrel-shaped structure. The hook 8 is elastic. When attaching, first open the elastic movable end of the hook 8, and then attach it to the side wall of the barrel-shaped structure. The side wall of the barrel-shaped structure has a certain thickness. After releasing the hook 8, the elastic movable end cooperates with the side wall of the upper cover 5 on the other side of the hook 8, thereby clamping and fixing it to the side wall of the barrel-shaped structure, so that the cylinder 1 of the level gauge is fixed and will not float with the liquid level. When there is no liquid in the tank of the tanker truck, the float 6 is located at the bottom of the tank under the action of gravity. When liquid is added to the tank, the float 6 rises synchronously with the rise of the liquid level in the tank. The connecting rod 2 moves upward synchronously with the float 6. By reading the scale 3 at the upper edge of the leveling port, the real-time height of the liquid level in the tank can be obtained. The staff does not need to climb to the top of the tank to observe the liquid level in the tank, avoiding the risk of falling from a height or accidentally falling into the tank.

[0028] In another embodiment, a nut and a locking bolt can be provided on the hook 8. After the hook 8 is attached to the side wall of the barrel-shaped structure, the locking bolt is tightened so that the bolt head presses against the side wall of the barrel-shaped structure, thereby fixing the liquid level gauge cylinder 1.

[0029] This level gauge is portable and easy to assemble. Before use, first connect the float 6 to the bottom of the connecting rod 2 and tighten it to ensure that the float 6 will not loosen and separate from the connecting rod 2. Place the float 6 into the cylinder 1 through the top opening of the cylinder 1. The connecting rod 2 will enter the cylinder 1 along with the float 6. Then, insert the top of the connecting rod 2 through the straightening cylinder 7. Tighten the top cover 5 connected to the straightening cylinder 7 to the top of the cylinder 1. Then tighten the retaining ring 9 to the top of the connecting rod 2. The float 6 will fall into the bottom of the cylinder 1 under the action of gravity. The retaining ring 9 will fit against the top of the straightening opening. That is, the initial reading of the level gauge is 0. After the level gauge is assembled, it can be used for measurement.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mobile level gauge, characterized in that, It includes a movable floating device installed inside the cylinder (1), the floating device is connected to the bottom of the connecting rod (2), the surface of the connecting rod (2) is provided with a scale (3), the top of the connecting rod (2) extends to the top of the cylinder (1), and the bottom of the cylinder (1) has a liquid inlet (4).

2. The mobile level gauge according to claim 1, characterized in that, The top of the cylinder (1) is fixed with a top cover (5), and the connecting rod (2) passes through the top cover (5).

3. The mobile level gauge according to claim 2, characterized in that, The top cover (5) is threadedly connected to the cylinder (1).

4. The mobile level gauge according to claim 1, characterized in that, The floating device is a float (6).

5. The mobile level gauge according to claim 4, characterized in that, The float (6) is threadedly connected to the connecting rod (2).

6. The mobile level gauge according to claim 5, characterized in that, The bottom end of the connecting rod (2) is connected to the middle of the float (6).

7. The mobile level gauge according to claim 2, characterized in that, The upper cover (5) is provided with a straightening cylinder (7) in the middle, and the connecting rod (2) passes through the straightening cylinder (7).

8. The mobile level gauge according to claim 2, characterized in that, The upper cover (5) is provided with a hook (8) on the side.

9. The mobile level gauge according to claim 1, characterized in that, The liquid inlet (4) is located on the lower or side surface of the cylinder (1).

10. The mobile level gauge according to claim 1, characterized in that, The top of the connecting rod (2) is threadedly connected to the retaining ring (9).