High-precision oil level gauge

Abstract

The invention relates to the technical field of oil level gauges, and provides a high-precision oil level gauge which comprises an oil tank, the oil tank is provided with an oil cavity, an alarm switch is arranged on the tank wall of the oil tank, penetrates through the tank wall of the oil tank and extends into the oil cavity, a connecting piece is arranged on the alarm switch in a swinging mode and is located in the oil cavity, and a balance weight piece is movably arranged on the connecting piece. The buoyancy piece is arranged at one end of the connecting piece away from the alarm switch. According to the technical scheme, the problem that in the prior art, a swing rod oil level gauge is poor in precision is solved.

Description

Technical Field

[0001] The invention relates to the technical field of oil level gauges, and in particular to a high-precision oil level gauge. Background Art

[0002] The early float-type oil level gauge had a relatively simple structure, and mainly relied on the float to move up and down with the rise and fall of the oil level to indicate the oil level. However, the accuracy of this oil level gauge is low, and the movement of the float is easily disturbed by factors such as oil fluctuations, changes in oil viscosity, and the internal structure of the oil tank. In actual applications, when there is liquid flow in the oil tank, refueling or pumping operations, the oil surface will produce large fluctuations, and the float will shake violently up and down, resulting in unstable measurement data and large errors, making it difficult to accurately reflect the actual oil level. Moreover, for oils of different densities, the buoyancy of the float will change, and it is necessary to calibrate or replace the float for different oils, which is cumbersome and has poor versatility.

[0003] With the development of technology, some oil level gauges based on sensor principles have emerged, such as capacitive oil level gauges and ultrasonic oil level gauges. Although capacitive oil level gauges can provide relatively high accuracy, they have strict requirements on the installation environment and are easily interfered by factors such as metal structures and electromagnetic fields in the fuel tank, resulting in deviations in the measurement results. In addition, their cost is relatively high, making them difficult to promote on a large scale in some cost-sensitive application scenarios. When ultrasonic oil level gauges measure oil products containing impurities, foam or high viscosity, ultrasonic signals are prone to scattering and attenuation, affecting the measurement accuracy and even leading to misjudgment. Summary of the invention

[0004] The present invention provides a high-precision oil level gauge, which solves the problem of poor precision of the swing-rod oil level gauge in the related art.

[0005] The technical solution of the present invention is as follows: A high-precision oil level gauge, comprising: an oil tank, the oil tank having an oil chamber, An alarm switch is arranged on the wall of the oil tank and penetrates through the wall of the oil tank and extends into the oil chamber. A connecting piece, the connecting piece is swingably arranged on the alarm switch and is located in the oil chamber, and the connecting piece swings to trigger the alarm switch to alarm. a counterweight, the counterweight being movably arranged on the connecting member, A buoyancy member is arranged at an end of the connecting member away from the alarm switch.

[0006] As a further technical solution, the counterweight has a sliding cavity, the inner wall of the sliding cavity has a first clamping groove and a second clamping groove, and the connecting member includes: A connecting rod, the connecting rod is swingably arranged on the alarm switch, and the connecting rod has a first clamping portion, A rotating sleeve rod, wherein the rotating sleeve rod is rotatably sleeved on the connecting rod, the rotating sleeve rod has a second clamping portion, and the counterweight is slidably arranged on the rotating sleeve rod. After the rotating sleeve rod rotates relative to the connecting rod, a sliding groove is formed between the first clamping portion and the second clamping portion. The counterweight is configured so that when the rotating sleeve rod rotates, the second clamping portion is clamped into the second clamping groove, and drives the counterweight to rotate, so that the first clamping portion is clamped into the first clamping groove. A locking member is slidably disposed in the slide slot, and after sliding, the locking member slides into or out of the slide slot to lock the relative position of the counterweight member and the rotating sleeve rod.

[0007] As a further technical solution, the rotating sleeve has a clearance groove, the clearance groove is used to accommodate the first clamping portion, and the locking member includes: A first locking rod and a second locking rod, the first locking rod and the second locking rod are hinged to each other, the ends of the first locking rod and the second locking rod each have a locking portion, the locking portion is used to be clamped with the end of the first clamping portion or the second clamping portion, and a mounting cavity is formed between the first locking rod and the second locking rod, and further includes: A locking block, wherein the locking block is connected to the first locking rod through bolts, the locking block is located in the installation cavity and abuts against the second locking rod.

[0008] As a further technical solution, the buoyancy member is a floating ball, the counterweight member is spherical, the counterweight member has the sliding cavity, and the sliding cavity runs through the center of the ball of the counterweight member.

[0009] As a further technical solution, the balancing weight has an oil distribution cavity, and the oil distribution cavity is used to contain the balancing weight liquid.

[0010] As a further technical solution, the weight liquid has the same density as the oil in the oil chamber or is the same oil.

[0011] As a further technical solution, the volume of oil in the oil distribution chamber is one third to one half of the oil distribution chamber.

[0012] As a further technical solution, there is at least one counterweight member, and the counterweight member and the buoyancy member have the same shape and are both hollow spheres.

[0013] As a further technical solution, the alarm switch has a swing groove, the connecting piece is swingably arranged in the swing groove, and the upper and lower sides of the swing groove are provided with electromagnets. After the connecting piece abuts against the electromagnet, the alarm switch alarms.

[0014] As a further technical solution, the buoyancy member has a connecting column, and the connecting column is threadedly connected to the connecting member.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, the buoyancy member is arranged at one end of the connecting member, and the counterweight member is movably arranged on the connecting member. This design enables the entire device to accurately respond to changes in the oil level in the oil chamber. When the oil level rises, the buoyancy of the buoyancy member increases. Since the position of the counterweight member is adjustable, the position of the counterweight member can be adjusted to adjust the center of gravity of the buoyancy member in different oil environments, so that the connecting member presents the same sensitivity in different oil environments; when the oil level drops, the buoyancy decreases, and the adjustment of the counterweight member can still accurately reflect the change in the oil level.

[0016] By adjusting the position of the counterweight on the connecting piece, the sensitivity of the oil level gauge can be calibrated to adapt it to the oil level monitoring needs of oil tanks of different specifications, different oil products and different usage environments, further improving the accuracy and versatility of oil level monitoring and ensuring that reliable oil level information can be provided under various complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 It is a cross-sectional structural schematic diagram of the counterweight in the present invention; Figure 5 for Figure 3 A is a schematic diagram of the enlarged structure of the middle part; In the figure: oil tank-1, oil chamber-101, alarm switch-2, swing groove-201, connecting piece-3, connecting rod-301, first clamping part-302, rotating sleeve rod-303, second clamping part-304, sliding groove-305, locking piece-306, yield groove-307, first locking rod-308, second locking rod-309, locking part-310, installation chamber-311, locking block-312, counterweight part-4, sliding chamber-401, first clamping groove-404, second clamping groove-405, oil distribution chamber-403, counterweight liquid-402, buoyancy part-5, connecting column-501. DETAILED DESCRIPTION In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0019] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] Reference Figure 1~Figure 5 , which is the first embodiment of the present invention, proposes a high-precision oil level gauge, including an oil tank 1, the oil tank 1 has an oil chamber 101, the alarm switch 2 is arranged on the wall of the oil tank 1, and penetrates the wall of the oil tank 1 and extends into the oil chamber 101, the connecting member 3 is swingably arranged on the alarm switch 2, and the connecting member 3 triggers the alarm switch 2 to alarm after swinging, and is located in the oil chamber 101, the counterweight 4 is movably arranged on the connecting member 3, and the buoyancy member 5 is arranged at the end of the connecting member 3 away from the alarm switch 2.

[0023] In this embodiment, the buoyancy member 5 is arranged at one end of the connecting member 3, and the counterweight member 4 is movably arranged on the connecting member 3. This design enables the entire device to accurately respond to changes in the oil level in the oil chamber 101. When the oil level rises, the buoyancy of the buoyancy member 5 increases. Since the position of the counterweight member 4 is adjustable, the center of gravity of the buoyancy member 5 can be adjusted by adjusting the position of the counterweight member 4 in different oil environments, so that the connecting member 3 presents the same sensitivity in different oil environments; when the oil level drops, the buoyancy decreases, and the adjustment of the counterweight member 4 can still accurately reflect the change in the oil level.

[0024] By adjusting the position of the counterweight 4 on the connecting piece 3, the sensitivity of the oil level gauge can be calibrated to adapt it to the oil level monitoring needs of oil tanks 1 of different specifications, different oil products and different usage environments, further improving the accuracy and versatility of oil level monitoring and ensuring that reliable oil level information can be provided under various complex working conditions.

[0025] The connecting member 3 is swingably set on the alarm switch 2, which enables it to change its posture in a flexible manner as the oil level rises and falls. Compared with some fixed-structure oil level monitoring devices, this swinging connecting member 3 can better adapt to the fluctuations of the oil surface and the dynamic changes of the oil level, avoiding monitoring errors caused by the rigidity of the mechanical structure. The buoyancy member 4 can offset the oil level difference caused by the fluctuation of the oil surface to a certain extent through the counterweight 4, especially when filling the oil, and will not cause misjudgment due to the short-term fluctuation of the oil, thereby ensuring the authenticity and stability of the oil level monitoring data and improving the accuracy of the oil level measurement.

[0026] The alarm switch 2 penetrates the wall of the oil tank 1 and extends into the oil chamber 101, and its position can be directly associated with the change in the oil level. When the oil level reaches a preset critical value of too high or too low, the corresponding action of the connector 3, such as swinging to a specific angle, will trigger the alarm switch 2 to work and send out an alarm signal in time. Avoid damage to the transformer due to too much or too little oil. The alarm switch 2 is set on the wall of the oil tank 1, which is convenient for connection with external control circuits, monitoring systems, etc., and is easy to realize centralized management and remote monitoring. The operator can receive the signal from the alarm switch 2 in real time in the control room, and uniformly control the oil level of multiple oil tanks, which improves the efficiency and convenience of management, and can also better cope with sudden abnormal oil level conditions, enhancing the safety and reliability of the entire system.

[0027] The alarm switch 2 cooperates with the connecting piece 3, the buoyancy piece 5 and the counterweight piece 4 to form a reliable oil level alarm system. When the oil level changes, the buoyancy piece 5 and the counterweight piece 4 transmit the oil level information to the alarm switch 2 accurately through the connection piece 3. The alarm is triggered only when the oil level is indeed beyond the normal range, thus avoiding the occurrence of false alarms.

[0028] The high-precision oil level gauge is composed of a fuel tank 1, an alarm switch 2, a connector 3, a counterweight 4, a buoyancy member 5 and other components. This combined structure has strong flexibility. It can be adjusted and installed accordingly according to the shape, size and installation position of different fuel tanks. For some irregularly shaped fuel tanks, such as special-shaped fuel tanks 1, by reasonably arranging the positions of the connector 3, the buoyancy member 5 and the counterweight 4 and adjusting the relative relationship between them, the oil level gauge can be well adapted to the internal structure of the fuel tank 1 and accurately monitor the oil level changes; similarly, for fuel tanks with different installation height requirements, the requirements can also be met by changing the installation method of each component, thereby improving the applicability of the oil level gauge in different application scenarios, expanding its scope of use, and enabling it to be widely used in oil level monitoring of various mechanical equipment, industrial oil storage facilities, etc.

[0029] Further, the counterweight 4 has a sliding cavity 401, the inner wall of the sliding cavity 401 has a first card slot 404 and a second card slot 405, the connecting member 3 includes a connecting rod 301, the connecting rod 301 is swingably set on the alarm switch 2, the connecting rod 301 has a first clamping portion 302, the rotating sleeve 303 is rotatably sleeved on the connecting rod 301, the rotating sleeve 303 has a second clamping portion 304, the counterweight 4 is slidably set on the rotating sleeve 303, and the rotating sleeve 303 rotates relative to the connecting rod 301 Afterwards, a slide groove 305 is formed between the first clamping part 302 and the second clamping part 304, and the counterweight 4 is configured so that when the rotating sleeve 303 rotates, the second clamping part 304 is clamped into the second clamping groove 405, and drives the counterweight 4 to rotate, so that the first clamping part 302 is clamped into the first clamping groove 404, and the locking part 306 is slidably set in the slide groove 305. After sliding, the locking part 306 slides into or out of the slide groove 305, which is used to lock the relative position of the counterweight 4 and the rotating sleeve 303.

[0030] In this embodiment, the inner wall of the sliding cavity 401 of the counterweight 4 is provided with a first clamping groove 404 and a second clamping groove 405, which cooperate with the first clamping portion 302 of the connecting rod 301 of the connecting member 3 and the second clamping portion 304 of the rotating sleeve rod 303, forming an ingenious and accurate counterweight adjustment method. By rotating the rotating sleeve rod 303 relative to the connecting rod 301, the second clamping portion 304 is first clamped into the second clamping groove 405, thereby driving the counterweight 4 to rotate, and finally allowing the first clamping portion 302 to clamp into the first clamping groove 404, so that the counterweight 4 can be accurately positioned at a specific position. In actual applications, different oil tanks, oil products, and use environments have different requirements for the sensitivity of the oil level gauge. Through the precise adjustment of the clamping groove and the clamping portion, the counterweight position can be finely changed with a smaller adjustment range, thereby accurately adjusting the response sensitivity of the oil level gauge to the oil level change, meeting various high-precision oil level monitoring requirements.

[0031] This counterweight adjustment method is relatively convenient in operation. The operator only needs to rotate the rotating sleeve rod 303 and adjust the position of the counterweight 4 according to the predetermined matching sequence of the slot and the clamping part, without the need for complex tools or cumbersome disassembly and installation steps. During the installation and commissioning stage of the equipment or subsequent work such as sensitivity calibration according to actual use, this simple operation process can greatly improve work efficiency, reduce the time and labor cost of adjusting the counterweight, and enable the oil level gauge to quickly adapt to different working conditions and be put into accurate oil level monitoring work in a timely manner, thereby improving the flexibility and practicality of the entire equipment.

[0032] The locking member 306 is slidably disposed in the slide groove 305 formed by the first clamping portion 302 and the second clamping portion 304, and can slide into or out of the slide groove 305 by sliding, so as to lock the relative position of the counterweight 4 and the rotating sleeve rod 303. During the normal operation of the oil level gauge, especially under complex working conditions such as vibration caused by equipment operation and oil sloshing in the oil tank, if the position of the counterweight 4 cannot be stably fixed, it will affect the accuracy of the oil level gauge in monitoring the oil level change. The locking effect of the locking member 306 can ensure that the counterweight 4 will not be easily displaced due to external interference factors after the position is adjusted, and keep its relative position with the rotating sleeve rod 303 and the entire connecting member 3 fixed, so that the oil level gauge can continuously and stably sense the oil level change based on the current counterweight setting, thereby improving the reliability and stability of oil level monitoring.

[0033] The locking member 306 cooperates with the counterweight 4, the rotating sleeve rod 303, the connecting rod 301 and other components to jointly improve the stability of the entire oil level gauge structure. Through the cooperation of the slot, the clamping part and the locking member 306, the various components form a close connection relationship, which can maintain the integrity of the overall structure and the certainty of the relative positions of the various components, ensuring the normal operation of the oil level gauge, and this stable structure is also conducive to extending the service life of the various components, reducing the maintenance and replacement costs caused by problems such as loose structure and component displacement, and improving the durability and economy of the entire oil level gauge.

[0034] The counterweight adjustment and locking structure enables the oil level gauge to better adapt to a variety of different working conditions. Whether the change in the ambient temperature of the oil tank will affect the density and other characteristics of the oil, the change in the operating state of the equipment, such as the different fluctuations of the oil in the oil tank under different powers, or the difference in the density of different oil products when the oil itself is replaced, the sensitivity of the oil level gauge can be recalibrated by adjusting the position of the counterweight 4, and then the locking member 306 is used to stably lock it to ensure that the oil level gauge can accurately monitor the oil level changes under various complex working conditions and maintain good working performance. For example, in the oil tanks of mechanical equipment used in some areas with large seasonal temperature differences, the density of the oil decreases when the temperature is high in summer and increases when the temperature is low in winter. By adjusting the position of the counterweight 4 and locking it accordingly, the oil level gauge can be unaffected by the temperature and can continuously and accurately monitor the oil level, thereby improving the adaptability of the equipment to different environmental conditions.

[0035] At the same time, when facing oil tanks with different installation angles, shapes and sizes, this structure can also rely on its flexible adjustment and locking functions. By reasonably adjusting the position of the counterweight 4, the oil level gauge can adapt to the specific spatial layout and oil flow characteristics inside the oil tank, thereby ensuring the accuracy of oil level monitoring, expanding the scope of application of the oil level gauge, and enabling it to be widely used in oil level monitoring of oil tanks of various oil-using equipment.

[0036] Furthermore, the rotating sleeve 303 has a clearance groove 307, which is used to accommodate the first clamping portion 302. The locking member 306 includes a first locking rod 308 and a second locking rod 309. The first locking rod 308 and the second locking rod 309 are hinged to each other. The ends of the first locking rod 308 and the second locking rod 309 both have locking portions 310. The locking portions 310 are used to be clamped with the ends of the first clamping portion 302 or the second clamping portion 304. An installation cavity 311 is formed between the first locking rod 308 and the second locking rod 309, and also includes a locking block 312. The locking block 312 is connected to the first locking rod 308 by bolts. The locking block 312 is located in the installation cavity 311 and abuts against the second locking rod 309.

[0037] In this embodiment, the clearance groove 307 provided on the rotating sleeve rod 303 is used to accommodate the first clamping part 302. This design cleverly utilizes the spatial structure of the rotating sleeve rod 303 itself, and avoids the spatial interference problem between the rotating sleeve rod 303 and other components caused by the existence of the first clamping part 302. In a relatively compact device such as an oil level gauge, the reasonable layout of various components is very important. The clearance groove 307 allows the rotating sleeve rod 303 to rotate and cooperate with other components more smoothly, and will not affect the entire counterweight adjustment and locking operation process due to insufficient space, thereby improving the compactness and coordination of the cooperation between the components, ensuring the rationality of the internal structure of the oil level gauge, and helping to achieve a more stable and efficient oil level monitoring function in a limited oil tank space.

[0038] The locking member 306 is composed of a first locking rod 308 and a second locking rod 309 which are hinged to each other, and a mounting cavity 311 is formed between the two, and the overall structure is relatively compact. This compact design not only saves the space occupied on the connecting member 3, making the internal structure of the entire oil level gauge more concise and orderly, but also facilitates its close cooperation with other components such as the first clamping portion 302 and the second clamping portion 304. When performing the position locking operation of the counterweight 4, the first locking rod 308 and the second locking rod 309 can be flexibly clamped with the corresponding clamping portion through the locking portion 310 at their ends, and the stable locking function of the counterweight 4 is achieved in a relatively small space, and the surrounding components work together to further optimize the performance of the oil level gauge in terms of space utilization and function realization, ensuring that the set position of the counterweight 4 can be reliably maintained in a complex oil tank environment, and the accuracy of oil level monitoring is guaranteed.

[0039] The locking parts 310 at the ends of the first locking rod 308 and the second locking rod 309 are used to be clamped with the ends of the first clamping part 302 or the second clamping part 304. This multi-end clamping method greatly enhances the reliability of locking. In the actual working process of the oil level gauge, it will be affected by various external factors such as the flow of oil in the oil tank and the vibration of equipment operation. If the locking is not firm enough, once the position of the counterweight 4 is offset, it will cause the sensitivity of the oil level gauge to change, affecting the accuracy of oil level monitoring. By clamping the locking part 310 with the ends of each clamping part, the relative position of the counterweight 4 and the rotating sleeve rod 303 is restricted from multiple directions, forming a stable locking structure, which can effectively resist external interference, ensure that the counterweight 4 always remains in the set position under complex working conditions, and ensure that the oil level gauge continuously and stably monitors the oil level changes according to the established sensitivity, thereby improving the stability and reliability of the entire oil level monitoring system.

[0040] The locking block 312 is connected to the first locking rod 308 by bolts and is located in the installation cavity 311 to abut against the second locking rod 309, which provides additional reinforcement for the connection between the first locking rod 308 and the second locking rod 309. During long-term use, even if the locking member 306 tends to loosen to a certain extent due to frequent operations such as multiple adjustments to the counterweight position or continuous external vibrations, the locking block 312 can maintain a relatively stable hinged state between them by virtue of its abutment with the two locking rods, preventing the locking rods from excessive deformation or loosening, further enhancing the structural stability of the entire locking member 306, ensuring its long-term effectiveness in locking the counterweight 4, extending the service life of the oil level gauge in complex working environments, reducing the frequency of repairs and replacements due to loose components, and improving the durability and economy of the equipment.

[0041] During the assembly process of the high-precision oil level gauge, the structural design of the clearance groove 307 of the rotating sleeve rod 303 and the locking member 306 is convenient for construction personnel to operate. For the clearance groove 307, when installing the connecting rod 301 and the first clamping part 302 thereon, the construction personnel only need to align the first clamping part 302 with the clearance groove 307 for installation. The operation is simple and intuitive, and the extension of the installation time caused by the difficulty of aligning the parts is reduced. For the locking member 306, it is also easy to hinge the first locking rod 308 and the second locking rod 309 to each other and clamp the locking part 310 at the end thereof with the corresponding clamping part. Then, the locking block 312 is installed on the first locking rod 308 by bolts and abuts against the second locking rod 309. The whole installation process has clear steps, does not require complicated tools or special installation skills, can quickly complete the installation of the locking member 306 and related parts, improves the efficiency of on-site assembly, and reduces the investment of labor costs.

[0042] This structural design of the rotating sleeve rod 303, the locking member 306 and other components can better adapt to the various working conditions that the oil level gauge faces during use. For example, when the ambient temperature of the oil tank changes greatly, the components may change in size due to thermal expansion and contraction, but the clearance groove 307 can provide a certain expansion space for the first clamping part 302 to avoid the components from squeezing each other or getting stuck due to temperature changes, which affects the normal operation of the oil level gauge; at the same time, the locking member 306, with its flexible hinge structure and the reinforcement of the locking block 312, can still maintain a stable locking function when dealing with structural stress changes caused by temperature changes, equipment vibrations and other factors, ensuring that the position of the counterweight 4 is not affected, so that the oil level gauge can continuously and reliably monitor oil level changes under different environmental conditions and working conditions, improving the adaptability of the entire oil level gauge to complex working conditions.

[0043] Similarly, when faced with diverse usage scenarios such as different oil densities, different oil tank shapes and sizes, this structure can also achieve smooth operation by reasonably adjusting the position of the counterweight 4 with the help of structures such as the clearance groove 307 and the locking member 306, so that the oil level gauge can adapt to the corresponding changes, ensure the accuracy of oil level monitoring, and expand the scope of application of the oil level gauge, so that it can be widely used in oil level monitoring of various oil-using equipment.

[0044] Furthermore, the buoyancy member 5 is a floating ball, the counterweight member 4 is spherical, and the counterweight member 4 has a sliding cavity 401 , and the sliding cavity 401 passes through the center of the sphere of the counterweight member 4 .

[0045] In this embodiment, the buoyancy member 5 is in the shape of a floating ball, and the counterweight member 4 is spherical. This design in shape enables the two to work better together in the oil chamber of the oil tank to adapt to the flow characteristics of the oil and the changes in the oil level. The floating ball, as the buoyancy member 5, can float freely in the oil with its spherical appearance. Whether the oil level is horizontal or tilted or fluctuating due to the shaking of the oil tank, the floating ball can quickly change its position following the changes in the oil level, always keeping in contact with the oil level, and accurately reflecting the actual height of the oil level. The spherical counterweight member 4 can also flexibly rotate and move on the connecting member 3, cooperate with the floating ball, and achieve a sensitive response to the oil level change by adjusting its relative position on the connecting member 3 and the balance of force between it and the floating ball according to the rise and fall of the oil level, thereby improving the accuracy of the entire oil level gauge in monitoring the oil level.

[0046] The design of the sliding cavity 401 of the counterweight 4 running through the center of the ball provides a convenient and reasonable structural basis for the movement and adjustment of the counterweight 4 on the connector 3. Since the sliding cavity 401 runs through the center of the ball, the center of gravity distribution of the counterweight 4 is more uniform and stable when moving, avoiding the situation of jamming or difficulty in accurate positioning during the position adjustment process due to the center of gravity offset. Moreover, when calibrating the sensitivity of the oil level gauge by changing the position of the counterweight 4 on the connector 3, the sliding cavity 401 running through the center of the ball allows the counterweight 4 to slide more smoothly along the connector 3, and the operator can adjust it to the desired position more accurately, further optimizing the oil level gauge's adjustment function for the oil level monitoring accuracy under different oil products, different tank environments, etc., and ensuring that the oil level gauge can adapt to the oil level monitoring needs under a variety of complex working conditions.

[0047] Furthermore, the balancing weight 4 has an oil distribution cavity 403 , and the oil distribution cavity 403 is used to contain the balancing weight liquid 402 .

[0048] In this embodiment, the counterweight 4 is provided with an oil distribution chamber 403 for containing the counterweight liquid 402. This design provides a more sophisticated and flexible way to adjust the counterweight. Compared with the traditional fixed mass counterweight block, by injecting or extracting different amounts of the counterweight liquid 402 into the oil distribution chamber 403, it is possible to achieve a slight adjustment of the overall weight of the counterweight 4, thereby being able to more accurately change the sensitivity of the oil level gauge to oil level changes. By using the combination of the oil distribution chamber 403 and the counterweight liquid 402, the operator can accurately adjust the counterweight according to factors such as the specific oil characteristics, the shape of the oil tank, and the use environment, so that the oil level gauge can keenly capture subtle changes in the oil level and ensure the safe and stable operation of the equipment.

[0049] The balancing weight liquid 402 can automatically adjust its distribution in the oil distribution chamber 403 according to the gravity and the posture of the oil level gauge, so that the center of gravity of the balancing weight 4 always remains relatively stable. During the normal operation of the oil level gauge, especially under complex working conditions such as oil shaking in the oil tank and vibration caused by equipment operation, a stable center of gravity is crucial to maintaining the working performance of the entire oil level gauge. Unlike some solid balancing weights that may shift or loosen due to vibration, the balancing weight liquid 402 can adaptively change its shape and distribution as it shakes, ensuring that the center of gravity of the balancing weight 4 is stable as a whole, thereby ensuring that the connector 3, the buoyancy member 5 and other related components can continuously and stably sense the oil level changes based on the current balancing weight state, thereby improving the reliability and stability of oil level monitoring and reducing the risk of misjudgment of the oil level due to external interference factors.

[0050] The oil distribution chamber 403 and the balancing liquid 402 cooperate with other components of the oil level gauge, such as the connector 3 and the buoyancy member 5, to jointly improve the stability and integrity of the entire oil level gauge structure. The balancing liquid 402, through its reasonable balancing weight adjustment function, cooperates with the buoyancy member 5 to achieve accurate response to oil level changes, while the connector 3 transmits the actions of the two to the alarm switch 2 and other related components. The components are closely connected and mutually restricted to form a stable and reliable oil level monitoring system. When dealing with various forces inside and outside the oil tank, such as the impact force of the oil and the vibration force of the equipment operation, this integrity can ensure the normal operation of the oil level gauge, and is conducive to extending the service life of each component, reducing the maintenance and replacement costs caused by structural instability, and improving the durability and economy of the entire oil level gauge.

[0051] During the assembly process of the high-precision oil level gauge, the design of the oil distribution chamber 403 and the weight liquid 402 of the counterweight 4 is convenient for construction personnel to operate. In the initial stage of installation, the counterweight 4 can be installed on the corresponding position of the rotating sleeve rod 303 with the empty oil distribution chamber 403. The installation process is simple and convenient, and there is no need to consider the additional operating difficulty brought by the weight liquid 402. Afterwards, according to actual needs, an appropriate amount of weight liquid 402 is injected into the oil distribution chamber 403. The entire injection process is relatively easy to operate, does not require complex equipment or special installation technology, can quickly complete the configuration of the weight, improves the efficiency of on-site assembly, and reduces labor cost investment.

[0052] Moreover, this installation method is easy for construction personnel to master. Different installation teams can easily follow the standard process to ensure the consistency of the oil level gauge installation quality, which is conducive to ensuring its subsequent stable and reliable operation.

[0053] When it is necessary to maintain the oil level gauge or inspect and repair the counterweight 4, its structural features make the operation relatively convenient. For example, if it is found that the counterweight liquid 402 has deteriorated or leaked due to long-term use, affecting the counterweight effect, the maintenance personnel can relatively easily discharge the counterweight liquid 402 from the oil distribution chamber 403, then clean and inspect the oil distribution chamber 403, and then re-inject new qualified counterweight liquid 402, without the need to disassemble the entire oil level gauge on a large scale, which greatly reduces the difficulty and workload of maintenance, shortens the maintenance time, reduces the impact on the normal use of the oil level gauge, and improves the maintainability and availability of the equipment. Similarly, if it is necessary to repair or replace other parts of the counterweight 4, such as the outer shell of the oil distribution chamber 403, the corresponding operation can be conveniently carried out after the counterweight liquid 402 is emptied, which improves the maintainability of the equipment and reduces the maintenance cost. The structural design of the oil distribution chamber 403 and the counterweight liquid 402 enables the oil level gauge to better adapt to oil-using equipment of different specifications and types and various oil products of different densities.

[0054] Furthermore, the weight liquid 402 has the same density as the oil in the oil chamber 101 or is the same oil.

[0055] In this embodiment, when the density of the counterweight liquid 402 is the same as or the same as the oil in the oil chamber 101, during the process of oil level changes, the buoyancy change of the buoyancy member 5 and the buoyancy change of the counterweight member 4 can maintain a high degree of synchronization and consistency. Because the size of the buoyancy is closely related to the volume of the displaced liquid and the density of the liquid, in this case, as the oil level rises and falls, the buoyancy-related influencing factors in the entire oil level gauge system are simpler and more stable, and no additional and complex interference factors will be introduced due to the difference in density between the oil and the counterweight liquid. This enables the system composed of the buoyancy member 5, the counterweight member 4 and the connector 3 to make corresponding posture adjustments according to the oil level changes more accurately, thereby more accurately reflecting the actual height of the oil level, greatly improving the accuracy of oil level monitoring, especially in application scenarios with strict requirements on oil level accuracy, such as the oil tank of high-precision instruments and equipment, and the fuel tank monitoring in the fields of aerospace, etc., which can provide reliable and accurate oil level data basis for related operations.

[0056] Since the density of the counterweight liquid 402 is the same as that of the oil in the oil chamber 101 or they are the same oil, when the oil level gauge is working, the buoyancy and other related forces exerted on the counterweight 4 in the oil are more uniform and balanced in distribution and size. Whether it is in a stationary state or in the process of equipment operation, the force state of the counterweight 4 is relatively stable, and there will be no excessive force on one side or unbalanced force due to density differences, which helps to maintain the stability of the entire oil level gauge structure. At the same time, this uniform force state also makes the connecting parts such as the connector 3 smoother and more reasonable in the process of transmitting force, avoiding damage to the parts due to excessive local force, extending the service life of each part, improving the durability of the entire oil level gauge, reducing the frequency of repair or replacement due to damaged parts, and improving the economy and reliability of the oil level gauge as a whole.

[0057] The design of the weight liquid 402 having the same density as the oil or being the same oil enables the oil level gauge to better adapt to oil tanks of oil-using equipment of different types and working conditions. Whether it is a conventional oil tank that stores a single oil product, or an oil tank that uses multiple oil products under some special processes and special environments but can choose oil products with the same density as the weight liquid 402, the oil level gauge can be used to achieve accurate oil level monitoring. At the same time, under different environmental conditions, such as high temperature, low temperature, and different altitudes, the oil level gauge can still work stably due to this feature. Because no matter how the environment changes, as long as the density of the oil in the oil chamber is consistent with that of the weight liquid 402, the oil level gauge will not be affected by these external factors, and will continuously and accurately monitor oil level changes, further improving its versatility, so that it can meet diverse usage needs, and is suitable for oil-using equipment in various industrial fields and different application scenarios.

[0058] Furthermore, the volume of the oil in the oil distribution chamber 403 is one third to one half of the oil distribution chamber 403 .

[0059] In this embodiment, the volume of oil in the oil distribution chamber 403 is set in the range of one third to one half of its own volume, which provides just the right flexibility and precision for the counterweight adjustment. This range will not make the operating space for counterweight adjustment too small due to too little oil, making it difficult to achieve fine adjustment of the sensitivity of the oil level gauge; nor will it cause the entire counterweight 4 to be too heavy or the center of gravity to be too concentrated due to too much oil, affecting its sensitive response to oil level changes when working in conjunction with the buoyancy member 5. Keeping the volume of oil in the oil distribution chamber 403 between one third and one half helps to maintain the relative stability of the center of gravity of the counterweight 4. During the normal operation of the oil level gauge, especially under complex working conditions such as oil shaking in the tank and vibration caused by equipment operation, a stable center of gravity is crucial to the stable operation of the entire oil level gauge system. If the volume of oil is too small, the center of gravity of the counterweight 4 may fluctuate greatly due to uneven distribution of oil or susceptibility to slight external interference; on the contrary, if the volume of oil is too large, the center of gravity of the entire counterweight 4 is too dependent on the oil part, and it is easy to lose balance when shaking or vibrating. Within this reasonable volume range, the oil can be relatively evenly distributed in the oil distribution cavity 403, so that the center of gravity of the counterweight 4 can be maintained in a relatively stable state under various working conditions, thereby ensuring that the connecting member 3, the buoyancy member 5 and other related components can continuously and stably accurately sense the oil level changes based on the current counterweight state, thereby improving the reliability and stability of oil level monitoring and reducing the risk of misjudgment of the oil level due to external interference factors.

[0060] The counterweight 5 has a proper amount of transformer oil added inside, so that when the oil level rises, the buoyancy of the buoyancy 4 increases, and when the oil level drops, the gravity received by the buoyancy 4 increases, thereby improving the accuracy and sensitivity of the oil level gauge.

[0061] Furthermore, there is at least one counterweight 4, and the counterweight 4 and the buoyancy member 5 have the same shape and are both hollow spheres.

[0062] In this embodiment, at least one counterweight 4 is provided, which provides more flexibility and precision for the counterweight adjustment of the oil level gauge. Different usage scenarios, such as oil tanks of different specifications, oil products of different densities, or different equipment operating conditions, require different sensitivity of the oil level gauge. By increasing or decreasing the number of counterweights 4, and adjusting the condition of the counterweight liquid 402 inside each counterweight 4 if there is an oil distribution cavity design, etc., a more detailed and diversified counterweight combination can be achieved, thereby accurately changing the response sensitivity of the oil level gauge to oil level changes.

[0063] Moreover, multiple counterweights 4 can cooperate and work together with each other, and their distribution and relative positions on the connecting member 3 can be adjusted according to actual needs to achieve the best counterweight balance effect. They work together with the buoyancy member 5 to more accurately reflect the actual height of the oil level, greatly improving the accuracy of oil level monitoring and reducing the probability of damage to the transformer.

[0064] The counterweight 4 and the buoyancy 5 are of the same shape and are both hollow spheres. This design enables them to better coordinate and respond to changes in the oil level in the oil chamber of the oil tank. The shape of the hollow sphere has good buoyancy and fluidity in the oil. Whether the buoyancy 5 changes its buoyancy state as the oil level rises or falls, or the counterweight 4 makes corresponding position and force adjustments based on its own weighting, the two have the same shape, and their movement and force change laws are more similar and synchronized. When the oil level changes, they can more coordinately transmit the change of force through the connector 3, so that the entire oil level gauge system can quickly and accurately make corresponding posture adjustments according to the slight fluctuations in the oil level, further improving the accuracy and sensitivity of oil level monitoring, and avoiding the occurrence of uncoordinated movement or uneven force caused by shape differences that affect the oil level judgment.

[0065] Furthermore, the alarm switch 2 has a swinging groove 201, and the connecting member 3 is swingably arranged in the swinging groove 201. The upper and lower sides of the swinging groove 201 are provided with electromagnets. After the connecting member 3 abuts against the electromagnet, the alarm switch 2 alarms.

[0066] In this embodiment, the alarm switch 2 is provided with a swinging groove 201, so that the connecting member 3 can be swingably set therein, which provides a precise mechanical structure basis for triggering the alarm when the oil level changes. When the oil level changes, the buoyancy member 5, the counterweight member 4 and the connecting member 3 will cooperate to make corresponding actions, so that the connecting member 3 swings in the swinging groove 201. When the connecting member 3 swings to a specific position, that is, when it abuts against the electromagnets on the upper and lower sides of the swinging groove 201, the alarm switch 2 will trigger the alarm. This triggering mechanism based on the swinging angle and position of the connecting member 3 can effectively avoid false alarms caused by non-substantial abnormal conditions of the oil level, such as slight fluctuations in the oil and slight vibrations of the equipment, and ensure that the alarm is only issued when the oil level really exceeds the normal range and the connecting member 3 reaches the corresponding triggering position, which greatly improves the accuracy of the alarm and provides accurate and reliable oil level abnormality information to the operator, so that he can take corresponding measures in time to ensure the safe operation of the oil-using equipment.

[0067] The electromagnets arranged on both sides of the swing slot 201 are key components for triggering the alarm and have the advantage of fast response speed. Once the connector 3 swings into place and contacts the electromagnet, the electromagnet can quickly generate electromagnetic action, so that the alarm switch 2 immediately activates the alarm function and promptly conveys the abnormal oil level signal to the operator.

[0068] Furthermore, the buoyancy member 5 has a connecting column 501 , and the connecting column 501 is threadedly connected to the connecting member 3 .

[0069] In this embodiment, the buoyancy member 5 is threadedly connected to the connector 3 through the connecting column 501, which can form a very stable connection structure. In the actual use of the oil level gauge, the oil in the oil tank will continue to shake, and the equipment may also produce vibrations during operation, and a stable connection is essential to ensure that the buoyancy member 5 can accurately follow the changes in the oil level and work in coordination with other components. The threaded connection relies on the friction between the threads and the mechanical structure of the mutual engagement, so that the buoyancy member 5 is tightly connected to the connector 3, effectively avoiding the phenomenon that the buoyancy member 5 is easily detached from the connector 3 or becomes loose or shifted due to external interference factors such as the impact force of the oil and the vibration of the equipment, thereby ensuring the integrity of the entire oil level gauge system, maintaining its accuracy and reliability in monitoring the oil level changes, and reducing the risk of oil level monitoring errors caused by unstable connections.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high-precision oil level gauge, characterized in that: include: An oil tank (1), wherein the oil tank (1) has an oil chamber (101), an alarm switch (2), the alarm switch (2) being arranged on the wall of the oil tank (1) and penetrating through the wall of the oil tank (1) and extending into the oil chamber (101); A connecting member (3), the connecting member (3) being swingably disposed on the alarm switch (2), the connecting member (3) triggering the alarm switch (2) to alarm after swinging, and being located in the oil chamber (101). a counterweight member (4), the counterweight member (4) being movably arranged on the connecting member (3), A buoyancy member (5), the buoyancy member (5) being arranged at an end of the connecting member (3) away from the alarm switch (2).

2. A high-precision oil level gauge according to claim 1, characterized in that: The counterweight (4) has a sliding cavity (401), the inner wall of the sliding cavity (401) has a first clamping groove (404) and a second clamping groove (405), and the connecting member (3) comprises: A connecting rod (301), the connecting rod (301) being swingably disposed on the alarm switch (2), the connecting rod (301) having a first clamping portion (302), a rotating sleeve rod (303), the rotating sleeve rod (303) being rotatably sleeved on the connecting rod (301), the rotating sleeve rod (303) having a second clamping portion (304), and after the rotating sleeve rod (303) rotates relative to the connecting rod (301), a sliding groove (305) is formed between the first clamping portion (302) and the second clamping portion (304), the counterweight (4) being slidably disposed on the rotating sleeve rod (303), the counterweight (4) being configured such that when the rotating sleeve rod (303) rotates, the second clamping portion (304) is clamped into the second clamping groove (405), and drives the counterweight (4) to rotate, so that the first clamping portion (302) is clamped into the first clamping groove (404), A locking member (306) is slidably disposed in the slide groove (305). After sliding, the locking member (306) slides into or out of the slide groove (305) to lock the relative position of the counterweight member (4) and the rotating sleeve rod (303).

3. A high-precision oil level gauge according to claim 2, characterized in that: The rotating sleeve rod (303) has a clearance groove (307), and the clearance groove (307) is used to accommodate the first clamping portion (302). The locking member (306) comprises: A first locking rod (308) and a second locking rod (309), the first locking rod (308) and the second locking rod (309) being hinged to each other, the ends of the first locking rod (308) and the second locking rod (309) both having a locking portion (310), the locking portion (310) being used to be clamped with the end of the first clamping portion (302) or the second clamping portion (304), a mounting cavity (311) being formed between the first locking rod (308) and the second locking rod (309), and further comprising: A locking block (312), the locking block (312) being connected to the first locking rod (308) via bolts; the locking block (312) is located in the installation cavity (311) and abuts against the second locking rod (309).

4. A high-precision oil level gauge according to claim 3, characterized in that: The buoyancy member (5) is a floating ball, the counterweight member (4) is spherical, the counterweight member (4) has the sliding cavity (401), and the sliding cavity (401) passes through the center of the sphere of the counterweight member (4).

5. A high-precision oil level gauge according to claim 1, characterized in that: The counterweight component (4) has an oil distribution chamber (403), and the oil distribution chamber (403) is used to contain a counterweight liquid (402).

6. A high-precision oil level gauge according to claim 5, characterized in that: The weight liquid (402) has the same density as the oil in the oil chamber (101) or is the same oil.

7. A high-precision oil level gauge according to claim 5, characterized in that: The volume of oil in the oil distribution chamber (403) is one third to one half of the oil distribution chamber (403).

8. A high-precision oil level gauge according to claim 1, characterized in that: There is at least one counterweight member (4), and the counterweight member (4) and the buoyancy member (5) have the same shape and are both hollow spheres.

9. A high-precision oil level gauge according to claim 1, characterized in that: The alarm switch (2) has a swinging groove (201), the connecting member (3) is swingably arranged in the swinging groove (201), and the upper and lower sides of the swinging groove (201) are both provided with electromagnets. When the connecting member (3) abuts against the electromagnet, the alarm switch (2) alarms.

10. A high-precision oil level gauge according to claim 1, characterized in that: The buoyancy member (5) has a connecting column (501), and the connecting column (501) is threadedly connected to the connecting member (3).

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