Intelligent monitoring device for fuel quantity of power distribution room
By combining the triangular prism float head with the guide column, the problems of unclear and unreliable remote oil level observation are solved, realizing multi-level, clear and stable indication of liquid level status, which is suitable for monitoring oil and chemical storage tanks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI RUI XUN EXPRESSWAY CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-04-24
AI Technical Summary
In the existing technology, it is difficult and unreliable to remotely observe the oil level in the generator set's oil tank. Traditional float-type oil level gauges are difficult to accurately determine the liquid level in remote video images and are prone to misjudgment due to shaking or tilting.
The oil level gauge is designed with a triangular prism float head and a guide column. When the float head slides on the guide column, it rotates 120 degrees through the cooperation of axial grooves and protrusions. Different colored reflectors are used to indicate the liquid level change, ensuring clear and reliable indication.
It achieves multi-level, clear, and stable indication of liquid level status, avoiding the ambiguity of traditional float-type indicators, improving the safety and convenience of remote monitoring, and is suitable for harsh environments.
Smart Images

Figure CN224163228U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of generator set fuel tank structure, specifically relating to an intelligent fuel quantity monitoring device for a power distribution room. Background Technology
[0002] The generator set's fuel tank is a critical component for ensuring power supply, and its fuel level needs to be accurately monitored to prevent fuel depletion and subsequent shutdown damage. In scenarios requiring remote management, such as remote base stations and unmanned pumping stations, personnel cannot frequently visit the site. Traditional fuel tanks often rely on mechanical fuel level gauges for manual visual inspection, which is insufficient to meet the needs of remote monitoring.
[0003] Currently, there are significant technical challenges in using generator set fuel tank level indicators for remote video monitoring. First, identification is difficult. Commonly used float-type fuel level gauges show continuously changing indications, making it difficult to accurately determine the current liquid level in a remote video feed, leading to a high risk of misjudgment. Second, reliability is poor. Fuel tank shaking, equipment vibration, or slight tilting can easily cause traditional floats to become misaligned, stuck, or even malfunction. Remote observation cannot distinguish between the true value and a false reading caused by interference, making the indication unreliable. Utility Model Content
[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an intelligent fuel quantity monitoring device for power distribution rooms, which solves the problems of difficulty in remotely observing and identifying fuel tank quantity and poor reliability in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] This utility model includes a housing, a transparent oil level gauge tube, a float head, and a guide post. The oil level gauge tube is vertically arranged, with both ends connected to the sides of the housing and communicating with the interior of the housing. The float head is a triangular prism structure with an equilateral triangle cross-section. The three side surfaces of the float head are distinguished by different colors. The guide post is located inside the oil level gauge tube, and at least one axial groove is formed on the surface of the guide post. The float head is slidably mounted on the guide post. The float head has a central circular hole through which the guide post passes. At least one protrusion is provided on the inner wall of the central circular hole. The protrusion is slidably mounted in the axial groove. The extension trajectory of the axial groove on the guide post is configured to drive the float head to rotate twice at intervals of 120° when the float head moves along the guide post, so that the different colored side surfaces face outward.
[0007] Optionally, the inner wall of the central circular hole is symmetrically provided with three hemispherical protrusions, and the guide post is provided with three axial grooves matching the number of protrusions.
[0008] Optionally, the axial groove is a continuous spiral groove, and the helix angle of the spiral groove changes in opposite directions at 1 / 3 and 2 / 3 of the height of the oil level gauge tube. Each change in the helix angle drives the float to complete one 120° rotation.
[0009] Optionally, a reflector is attached to each of the three side surfaces of the float head. The three reflectors are green, yellow, and red, respectively. When the float head moves from top to bottom in the oil level gauge tube, the color of the float head changes from green to yellow to red in sequence.
[0010] Optionally, the oil level gauge tube includes a cylindrical tube body, with an axially grooved outer side of the tube body away from the oil tank and a sealed arc-shaped observation window.
[0011] Optionally, the oil level gauge tube further includes a top cover, the top of the tube body is open, the top cover is slidably sealed at the top of the tube body, and the top of the guide post is slidably sealed to the top cover.
[0012] Optionally, the top cover is fixed to the tube body by locking screws.
[0013] Optionally, the bottom surface of the tube body is provided with a spline groove, and the bottom end of the guide post is engaged with the spline groove and inserted into the spline groove.
[0014] The beneficial effects of this invention are as follows: Utilizing the special configuration of the guide column and the synergistic effect of the triangular prism float head, when the liquid level rises or falls, the float head slides axially along the guide column. The protrusion inside the float head moves along the groove trajectory. When the float head reaches two preset key positions, it rotates around its axis, with each rotation angle being 120 degrees. This device achieves multi-level, clear, and stable indication of the liquid level. The float head rotates 120 degrees twice with changes in liquid level, forcibly and uniquely facing the observer with the colored surface corresponding to the liquid level level, thus intuitively and unambiguously indicating the high or low liquid level, avoiding the problem of unclear indication in traditional float-type indicators. The guide column penetrates the float head and is supplemented by a groove-protrusion guiding mechanism, improving the guiding stability of the float head and effectively preventing the float head from tilting or jamming due to liquid sloshing, equipment vibration, or slight tilting, ensuring reliable indication. The entire system has a simple structure, requires no electricity or complex sensors, and is suitable for applications with harsh environmental conditions such as oil and chemical storage tanks, significantly improving the safety and convenience of liquid level monitoring.
[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:
[0017] Figure 1 This is a schematic diagram of the overall design of the fuel tank.
[0018] Figure 2 This is a schematic diagram of the structure of the floating head of the utility model;
[0019] Figure 3 This is a cross-sectional view of the oil level gauge tube of the utility model.
[0020] The following are marked in the attached diagram: 1. Housing; 2. Oil level gauge tube; 21. Tube body; 22. Arc-shaped observation window; 23. Top cover; 24. Spline groove; 3. Float head; 31. Central circular hole; 32. Protrusion; 33. Reflector; 4. Guide column; 41. Axial groove. Detailed Implementation
[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0022] Please refer to the figures. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0023] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.
[0024] This utility model provides an intelligent monitoring device for fuel quantity in a power distribution room, such as... Figure 1 , Figure 2 and Figure 3As shown, the system includes a housing 1, a transparent oil level gauge tube 2, a float head 3, and a guide post 4. The oil level gauge tube 2 is vertically arranged, with both ends connected to the sides of the housing 1 and communicating with the interior of the housing 1. The oil level gauge tube 2 includes a cylindrical tube body 21, with an axially grooved and sealed arc-shaped observation window 22 on the outer side of the tube body 21 away from the oil tank. The float head 3 is a triangular prism structure with an equilateral triangle cross-section. A reflector 33 is attached to each of the three side surfaces of the float head 3, with the three reflectors being green, yellow, and red, respectively. As the oil level gauge tube 2 moves from top to bottom, the float head 3 changes color from green, yellow, to red sequentially when facing outwards. The guide post 4 is located inside the oil level gauge tube 2, and the surface of the guide post 4... Three axial grooves 41 are formed. The float head 3 is slidably mounted on the guide post 4. The float head 3 has a central circular hole 31 through which the guide post 4 passes. The inner wall of the central circular hole 31 is symmetrically provided with three hemispherical protrusions 32 matching the number of axial grooves 41. The protrusions 32 are slidably mounted in the axial grooves 41. The extension trajectory of the axial grooves 41 on the guide post 4 is configured to drive the float head 3 to rotate twice when it moves along the guide post 4. The axial grooves 41 are continuous spiral grooves. The spiral helix angle of the spiral groove changes in opposite directions at 1 / 3 and 2 / 3 of the height of the oil level gauge tube 2. Each change in helix angle drives the float head 3 to complete one 120° rotation so that the different colored side surfaces face outward.
[0025] This invention utilizes the special configuration of the guide post 4 and the synergistic effect of the triangular prism float head 3. When the liquid level rises or falls, the float head 3 slides axially along the guide post 4. The protrusion 32 inside the float head 3 moves along the groove trajectory. When the float head 3 reaches two preset key positions, it rotates around its axis, with each rotation angle being 120 degrees. This device achieves multi-level, clear, and stable indication of the liquid level. The float head 3 rotates 120 degrees twice with changes in liquid level, forcibly and uniquely facing the observer with the colored surface corresponding to the liquid level level, thus intuitively and unambiguously indicating the high or low liquid level, avoiding the problem of unclear indication in traditional float-type indicators. The guide post 4 penetrates the float head 3 and is supplemented by the groove-protrusion 32 guiding mechanism, improving the guiding stability of the float head 3 and effectively preventing the float head 3 from tilting or jamming due to liquid sloshing, equipment vibration, or slight tilting, ensuring reliable indication. The entire system has a simple structure, requires no electricity or complex sensors, and is suitable for applications with harsh environmental conditions such as oil and chemical storage tanks, significantly improving the safety and convenience of liquid level monitoring.
[0026] In a further embodiment, the oil level gauge tube 2 also includes a top cover 23, the top of the tube body 21 is open, the top cover 23 is slidably and sealingly disposed at the top of the tube body 21, and the top of the guide post 4 is slidably and sealingly connected to the top cover 23; the top cover 23 and the tube body 21 are fixed together by locking screws; the bottom surface of the tube body 21 is provided with a spline groove 24, and the bottom end of the guide post 4 cooperates with the spline groove 24 and is inserted into the spline groove 24.
[0027] In this structure, the top cover 23 and the connected guide column 4 and float head 3 assembly can be pulled out upwards by loosening the locking screw, without disassembling the housing 1 or the oil level gauge tube 2 body, simplifying the cleaning and maintenance process.
[0028] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. A smart monitoring device for fuel quantity in a power distribution room, characterized in that: The device includes a housing, a transparent oil level gauge tube, a float head, and a guide post. The oil level gauge tube is vertically arranged, with both ends connected to the sides of the housing and communicating with the interior of the housing. The float head is a triangular prism structure with an equilateral triangle cross-section. The three side surfaces of the float head are distinguished by different colors. The guide post is located inside the oil level gauge tube, and at least one axial groove is formed on the surface of the guide post. The float head is slidably mounted on the guide post. The float head has a central circular hole through which the guide post passes. At least one protrusion is provided on the inner wall of the central circular hole, and the protrusion is slidably mounted in the axial groove. The extension trajectory of the axial groove on the guide post is configured to drive the float head to perform two 120° rotations at intervals as the float head moves along the guide post, so that the different colored side surfaces face outward.
2. The intelligent fuel quantity monitoring device for power distribution rooms according to claim 1, characterized in that: The inner wall of the central circular hole is symmetrically provided with three hemispherical protrusions, and the guide post is provided with three axial grooves matching the number of protrusions.
3. The intelligent fuel quantity monitoring device for power distribution rooms according to claim 2, characterized in that: The axial groove is a continuous spiral groove. The spiral helix angle of the spiral groove changes in opposite directions at 1 / 3 and 2 / 3 of the height of the oil level gauge tube. Each change in the helix angle drives the float to complete one 120° rotation.
4. The intelligent fuel quantity monitoring device for power distribution rooms according to claim 3, characterized in that: The three sides of the float head are each covered with a reflector, which are green, yellow and red respectively. When the float head moves from top to bottom through the oil level gauge tube, the color of the float head changes from green to yellow to red in sequence.
5. The intelligent fuel quantity monitoring device for power distribution rooms according to claim 4, characterized in that: The oil level gauge tube includes a cylindrical tube body, with an axially grooved outer side of the tube body away from the oil tank and a sealed arc-shaped observation window.
6. The intelligent fuel quantity monitoring device for power distribution rooms according to claim 5, characterized in that: The oil level gauge tube also includes a top cover, the top of the tube body is open, the top cover is slidably sealed at the top of the tube body, and the top of the guide post is slidably sealed to the top cover.
7. The intelligent fuel quantity monitoring device for power distribution rooms according to claim 6, characterized in that: The top cover is fixed to the tube body by locking screws.
8. The intelligent fuel quantity monitoring device for power distribution rooms according to claim 7, characterized in that: The bottom surface inside the tube is provided with a spline groove, and the bottom end of the guide post is engaged with the spline groove and inserted into the spline groove.