A real-time level meter that automatically records the highest and lowest floating positions in the past

Abstract

The present invention discloses a real-time liquid level gauge that automatically records the highest and lowest floating positions in the past. It includes an outer shell and a float arranged in a floating tank in the outer shell, and also includes a liquid level recording part, a limiting mechanism, and a sliding tank. The liquid level recording part is arranged in the floating tank, and the limiting mechanism is arranged behind the liquid level recording part. The limiting mechanism and the liquid level recording part are matched with a sliding card. The liquid level recording part includes a high-level recording part and a low-level recording part. The limiting mechanism includes a high-level limiting mechanism and a low-level limiting mechanism. Sealing gaskets are provided in the lower surface of the upper end of the outer shell and in the upper surface of the lower end. The gain effect of the present invention is that the present invention has more complete functions, fast connection, convenient reset operation, high liquid level display accuracy, accurate liquid level recording, and can record and display the historical highest and lowest liquid level data reached during the operation of the device at any time, so that the past operating conditions of the device can be more intuitively known and abnormal problems generated during the operation of the device can be traced back more quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid level measuring equipment, and in particular to a real-time liquid level meter which automatically records the highest and lowest floating positions in the past. Background Art

[0002] The liquid level meter is mainly used to record the liquid level height data of the detection target object, so that the operator can quickly understand the operating status of the equipment.

[0003] However, currently used level gauges primarily track liquid levels in real time, displaying only the current level of the equipment at that moment and lacking other recording functions. When an accident occurs in production equipment, management personnel are unable to accurately analyze the equipment's operating conditions at the time of the accident by viewing the equipment's past maximum and minimum levels during the production process, thereby quickly identifying the cause of the accident and preventing similar incidents from recurring.

[0004] In view of this, it is urgent to design a new liquid level gauge structure solution that can effectively record the equipment's past highest and lowest liquid levels and provide a basis for subsequent accident analysis to meet the existing needs of real-time monitoring and effective retrieval of historical data on the status of production equipment. Summary of the Invention

[0005] The purpose of the present invention is to meet the above-mentioned existing needs for monitoring the operating status of production equipment, and to provide a real-time liquid level meter that can be used as a real-time liquid level meter when the equipment is operating normally, and can also automatically and effectively record the equipment's past highest and lowest liquid levels, providing an accurate basis for subsequent analysis after an accident occurs.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A real-time liquid level gauge that automatically records the highest and lowest floating positions in the past, includes an outer shell and a float arranged in a floating groove inside the outer shell, and also includes a liquid level recording part, a limiting mechanism, and a sliding groove. The sliding grooves are longitudinally arranged on the inner walls of both sides of the outer shell, and the sliding grooves are located behind the floating groove. The liquid level recording part is arranged in the floating groove. The liquid level recording part is arranged in the floating groove and is respectively located at the upper and lower ends of the float. The liquid level recording part cooperates with the float, and the limiting mechanism can be slidably arranged in the sliding groove. The limiting mechanism is arranged behind the liquid level recording part. The limiting mechanism and the liquid level recording part are slidingly engaged. Sealing gaskets are provided in the lower surface of the upper end portion of the outer shell and the upper surface of the lower end portion to maintain a high degree of sealing inside the liquid level gauge.

[0008] Preferably, the liquid level recording part includes a high-level recording part and a low-level recording part, the high-level recording part is arranged above the float, and the low-level recording part is arranged below the float, and the limiting mechanism includes a high-level limiting mechanism and a low-level limiting mechanism, the high-level limiting mechanism cooperates with the high-level recording part, and the low-level limiting mechanism cooperates with the low-level recording part.

[0009] Preferably, a scale observation portion is provided in the front end surface of the outer shell, and an identification scale protrusion is provided on each scale of the scale observation portion. The combination of the scale observation portion and the identification scale protrusion allows inspection personnel to observe and record the liquid level status of the equipment more intuitively and quickly.

[0010] Preferably, the low-level recording portion is made of a material having a density lower than that of the monitoring liquid, so that the low-level recording portion can recover to contact with the lower end surface of the float with the buoyancy of the liquid after the low-level limit mechanism is closed.

[0011] Preferably, the high-position recording part and the low-position recording part are horizontally arranged in the floating groove, the front end face of the high-position recording part is parallel to the inner end face of the front side of the floating groove, the rear end face of the high-position recording part is parallel to the inner end face of the rear side of the floating groove, the front end face of the low-position recording part is parallel to the inner end face of the front side of the floating groove, and the rear end face of the low-position recording part is parallel to the inner end face of the rear side of the floating groove.

[0012] The top end face of the first limit block is abutted against the lower surface of the upper end of the shell body, and the upper end face of the first limit block is abutted against the lower surface of the upper end of the shell body. The top limit stop leaf is arranged on the front end of the high limit link, and the center of the high limit link can be swung up and down in the shell body by a fixed movable latch. The rear end of the high limit link is rotatably mounted on the high reset guide plate by a first movable movable latch. A plurality of high limit stop leaves connected by the high limit links are continuously and parallelly arranged on the high reset guide plate. The number and arrangement density of the high limit stop leaves can be adjusted according to the liquid level accuracy required to be recorded.

[0013] The cam is secured to the bottom of the slide and is adapted to engage the lower end of the slide in a manner that allows the slide to move relative to the upper end of the slide and to engage the lower end of the slide in a manner that allows the slide to move relative to the upper end of the slide.

[0014] Preferably, the front end of the high-level limit connecting rod is tilted downward, so that the float can rise smoothly along the high-level limit baffle when floating up, and the float can be stuck and fixed by the high-level limit baffle when it descends through the high-level limit baffle. The front end of the high-level limit baffle extends into the floating groove under normal recording conditions to limit the downward movement of the high-level recording part. The high-level limit baffle is an inwardly concave arc-shaped blade surface and is made of soft elastic material to ensure that the float can pass smoothly when rising and will not be stuck, so as to accurately record the changes in the high liquid level.

[0015] Preferably, the front end of the low-level limit connecting rod is tilted upward, so that the float can smoothly descend along the low-level limit baffle when it slides down, and the float can be supported by the liquid level and floated up and stuck and fixed on the lower end of the low-level limit baffle. The front end of the low-level limit baffle extends into the floating groove under normal recording conditions to limit the floating movement of the low-level recording part. The low-level limit baffle is an inwardly concave arc-shaped blade surface, and the low-level limit baffle is made of soft elastic material to ensure that the float can pass smoothly when it descends and will not be stuck, so as to accurately record the changes in the low liquid level.

[0016] Preferably, the ends of the high-position reset connecting rod and the low-position reset connecting rod extending out of the outer shell are provided with gripping portions, which are convenient for operators to grip and perform reset operations.

[0017] Compared with the prior art, the present invention has the following gain effects: the present invention realizes real-time recording of the effective highest liquid level and lowest liquid level of the equipment by adopting a newly designed liquid level card recording structure, and the limit baffle blades used for fixing the card position are made of soft elastic material. The accuracy of the liquid level recording will not be affected by the high limit baffle blades and the low limit baffle blades in the limit mechanism. At the same time, the limit baffle blades are designed to be concave arc-shaped blade surfaces, so that the limit mechanism can move more smoothly; the number and arrangement density of the limit baffle blades designed by the present invention can be adjusted according to the recording accuracy requirements of different equipment. When the accuracy required for liquid level recording is higher, the number of limit baffle blades can be increased. The quantity and arrangement density increase. When the accuracy required for liquid level recording is low, a design with fewer limit baffles and a lower arrangement density can be adopted. The present invention sets a newly designed reset mechanism to link the limit baffles, so the structure is simpler, and there will be no problem of getting stuck during the recording and resetting operations. The operation is convenient and the reset is fast. The present invention is fully functional and can be used as a real-time liquid level meter for daily monitoring of equipment. It can also record the historical highest and lowest liquid level data reached during the operation of the equipment at any time, so that operators and supervisors can more intuitively know the past operating conditions of the equipment and more quickly trace abnormal problems caused during the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the present invention in use.

[0020] Figure 3 Schematic diagram of the reset state of the present invention.

[0021] Figure 4 It is a schematic diagram of the combined rotation of the high-position limit connecting rod and the high-position limit baffle of the present invention.

[0022] Figure 5 It is a schematic diagram of the combined rotation of the low-position limit connecting rod and the high-position limit baffle of the present invention.

[0023] Figure 6 This is an enlarged schematic diagram of the reset portion of the present invention.

[0024] Description of Figure Numbers:

[0025] Outer shell -1, floating groove -2, float -3, high position recording part -4, low position recording part -5, sliding groove -6, high position limiting mechanism -7, low position limiting mechanism -8, high position reset connecting rod -9, high position reset guide plate -10, high position limiting connecting rod -11, high position limiting baffle -12, high position reset connecting rod spring -13, first limiting block -14, first movable movable pin -15, fixed movable pin -16, low position reset connecting rod -17, low position reset guide plate -18, low position limiting connecting rod -19, low position limiting baffle -20, second movable movable pin -21, sealing gasket -22, gripping part -23, low position reset connecting rod spring -24, second limiting block -25, scale observation part -26. DETAILED DESCRIPTION

[0026] The present invention is further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] In order to enable the examiners to have a further understanding of the purpose, features and functions of the present invention, the present invention is further described below with reference to specific embodiments and accompanying drawings:

[0029] See Figure 1-6 As shown, the present invention is a real-time liquid level meter that automatically records the highest and lowest floating positions in the past, including an outer shell 1 and a float 3 set in a floating tank 2 in the outer shell 1, and also includes a liquid level recording part, a limit mechanism, and a sliding groove 6. Figure 1As shown, the sliding groove 6 is longitudinally arranged on the inner walls on both sides of the outer shell 1, the sliding groove 6 is located behind the floating groove 2, the liquid level recording part is arranged in the floating groove 2, and the liquid level recording part is arranged in the floating groove 2 and is respectively located at the upper and lower ends of the float 3. The liquid level recording part cooperates with the float 3, and the limiting mechanism can be slidably arranged in the sliding groove 6. The limiting mechanism is arranged behind the liquid level recording part. The limiting mechanism and the liquid level recording part are slidingly engaged. A sealing gasket 22 is provided in the lower surface of the upper end portion of the outer shell 1 and the upper surface of the lower end portion to keep the interior of the liquid level gauge highly sealed.

[0030] In this embodiment, if Figure 1-2 As shown, the liquid level recording part includes a high-level recording part 4 and a low-level recording part 5, the high-level recording part 4 is arranged above the float 3, and the low-level recording part 5 is arranged below the float 3, and the limiting mechanism includes a high-level limiting mechanism 7 and a low-level limiting mechanism 8, the high-level limiting mechanism 7 cooperates with the high-level recording part 4, and the low-level limiting mechanism 8 cooperates with the low-level recording part 5.

[0031] In this embodiment, a scale observation portion 26 is provided on the front end surface of the outer shell 1, and an identification scale protrusion is provided on each scale of the scale observation portion 26. The combination of the scale observation portion 26 and the identification scale protrusion allows inspection personnel to observe and record the liquid level status of the equipment more intuitively and quickly.

[0032] In this embodiment, the low-level recording portion 5 is made of a material with a density lower than that of the monitoring liquid, so that the low-level recording portion 5 can recover to contact with the lower end surface of the float 3 with the buoyancy of the liquid after the low-level limit mechanism 8 is closed.

[0033] In this embodiment, the high-position recording part 4 and the low-position recording part 5 are horizontally arranged in the floating groove 2, the front end face of the high-position recording part 4 is parallel to the front inner end face of the floating groove 2, the rear end face of the high-position recording part 4 is parallel to the rear inner end face of the floating groove 2, the front end face of the low-position recording part 5 is parallel to the front inner end face of the floating groove 2, and the rear end face of the low-position recording part 5 is parallel to the rear inner end face of the floating groove 2.

[0034] In this embodiment, the high-position limit mechanism 7 includes a high-position reset connecting rod 9, a high-position reset guide plate 10, a high-position limit connecting rod 11, and a high-position limit baffle 12. The lower end of the high-position reset connecting rod 9 is connected to the upper end of the high-position reset guide plate 10, and the high-position reset guide plate 10 is slidably arranged in the sliding groove 6. A high-position reset connecting rod spring 13 is connected between the upper end of the high-position reset guide plate 10 and the upper end surface of the outer shell 1. A first limit block 14 is provided in the middle of the high-position reset connecting rod 9. The upper end surface of the first limit block 14 abuts against the lower surface of the upper end portion of the outer shell 1, as shown in FIG. Figure 4As shown, the high-position limit stop leaf 12 is arranged at the front end of the high-position limit link 11, and the center of the high-position limit link 11 is set in the outer shell 1 so as to swing up and down through a fixed movable pin 16. The rear end of the high-position limit link 11 is rotatably mounted on the high-position reset guide plate 10 through a first movable movable pin 15. A plurality of high-position limit stop leaves 12 connected by the high-position limit link 11 are continuously and parallelly arranged on the high-position reset guide plate 10.

[0035] In this embodiment, the low-position limit mechanism 8 includes a low-position reset link 17, a low-position reset guide 18, a low-position limit link 19, and a low-position limit stop 20. The lower end of the low-position reset link 17 is connected to the upper end of the low-position reset guide 18, and the low-position reset guide 18 is slidably arranged in the sliding groove 6. A low-position reset link spring 24 is connected between the upper end of the low-position reset guide 18 and the upper end surface of the outer shell 1. A second limit block 25 is provided in the middle of the low-position reset link 17, and the lower end surface of the second limit block 25 abuts against the upper surface of the lower end of the outer shell 1. Figure 5 As shown, the low-level limit stop leaf 20 is arranged at the front end of the low-level limit link 19, and the center of the low-level limit link 19 is set in the outer shell 1 so as to swing up and down through a fixed movable pin 16. The rear end of the low-level limit link 19 is rotatably mounted on the low-level reset guide plate 18 through a second movable movable pin 21. A plurality of low-level limit stop leaves 20 connected by the low-level limit link 19 are continuously and parallelly arranged on the low-level reset guide plate 18.

[0036] In this embodiment, the front end of the high-level limit connecting rod 11 is tilted downward, and the front end of the high-level limit baffle 12 extends into the floating groove 2 under normal recording conditions, so as to limit the downward movement of the high-level recording part 4. The high-level limit baffle 12 is a concave arc-shaped blade surface, and the high-level limit baffle 12 is made of soft elastic material, which ensures that the float 3 can pass smoothly when rising and will not be stuck, so as to accurately record the changes in the high liquid level.

[0037] In this embodiment, the front end of the low-level limit link 19 is tilted upward, and the front end of the low-level limit baffle 20 extends into the floating groove 2 under normal recording conditions, so as to limit the upward movement of the low-level recording part 5. The low-level limit baffle 20 is a concave arc-shaped blade surface, and the low-level limit baffle 20 is made of soft elastic material, which ensures that the float 3 can pass smoothly when descending and will not be stuck, so as to accurately record the low liquid level changes.

[0038] In this embodiment, the ends of the high-position reset link 9 and the low-position reset link 17 extending out of the outer shell 1 are provided with gripping portions 23 , which are convenient for operators to grip and perform reset operations.

[0039] Example 1 - Recording Liquid Level Changes: After the real-time liquid level meter that automatically records the highest and lowest floating levels of the present invention is installed and connected to the monitored equipment, the device is turned on and the present invention begins to record the working liquid level of the equipment, such as Figure 2-3 As shown, when the liquid level in the equipment rises, the float 3 rises with the liquid level, and the float 3 drives the high-level recording part 4 to move upward along the floating tank 2. The high-level recording part 4 presses against the upper end of the float 3 and moves together. When the high-level recording part 4 floats up, when the rear end of the high-level recording part 4 passes the high-level limit stop leaf 12, the upward force of the float 3 causes the high-level recording part 4 to slide upward along the front end surface of the high-level limit stop leaf 12. Since the high-level limit stop leaf 12 is made of soft elastic material, it can effectively maintain the smoothness of the floating movement of the high-level recording part 4, so that the high-level recording part 4 will not be stuck between the inner wall of the floating tank 2 and the front end surface of the high-level limit stop leaf 12. After the high-level recording part 4 completely passes the high-level limit stop leaf 12, the high-level recording part 4 continues to move upward with the liquid level until the high-level recording part 4 floats up to the current maximum liquid level, at which time the lower end of the high-level recording part 4 is stuck on the protruding end of the high-level limit stop leaf 12, and the recorder records the current maximum liquid level through the scale observation part 26.

[0040] If the subsequent liquid level continues to rise, the high-level recording part 4 continues to rise with the float 3, passes through the upper high-level limit baffle 12, and is stuck on the high-level limit baffle 12 at a higher position. The recorder records the latest highest liquid level of the equipment operation through the scale observation part 26.

[0041] When the liquid level of the equipment drops, the high-level recording part 4 remains stuck on the protruding end of the high-level limit baffle 12, and the low-level recording part 5 is against the bottom of the float 3. The float 3 and the low-level recording part 5 drop with the liquid level. When the rear end of the low-level recording part 5 drops and passes the low-level limit baffle 20, the low-level recording part 5 slides downward along the front end surface of the low-level limit baffle 20 under the action of the gravity of the float 3. Since the low-level limit baffle 20 is made of soft elastic material, it can effectively maintain the smoothness of the descent of the low-level recording part 5, so that the low-level recording part 5 will not be stuck between the inner wall of the floating tank 2 and the front end surface of the low-level limit baffle 20. After the low-level recording part 5 completely passes the low-level limit baffle 20, it continues to drop with the liquid level until the low-level recording part 5 stays at the current lowest liquid level. The upper end of the low-level recording part 5 is stuck under the protruding end of the low-level limit baffle 20, and the recorder records the current lowest liquid level through the scale observation part 26.

[0042] When the subsequent liquid level continues to drop, the low-level recording part 5 drops with the float 3, passes the low-level limit baffle 20 below, and is stuck on the low-level limit baffle 20 at a lower position. The recorder records the new lowest liquid level of the equipment operation through the scale observation part 26.

[0043] Example 2 - Reset operation of the liquid level meter: After the equipment liquid level data record is obtained, a reset operation is required.

[0044] First reset the high limit mechanism, such as Figure 6 As shown, the high-position reset link 9 is pressed down by the holding portion 23, so that the high-position reset guide plate 10 slides down along the sliding groove 6, driving the rear end of the high-position limit link 11 to rotate along the first movable movable pin 15. At the same time, the high-position limit link 11 is lifted upward along the fixed movable pin 16 in the center, and the high-position limit baffle 12 is lifted until it is flush with the inner wall of the floating groove 2. Since there is no obstruction of the high-position limit baffle 12, the high-position recording part 4 falls to above the float 3 under the action of gravity, completing the reset of the high-position recording part 4. Then release the grip 23, and under the action of the contraction tension of the high-position reset link spring 13, the high-position reset guide plate 10 drives the high-position reset link 9 to reset upward along the sliding groove 6. When the upper end of the first limit block 14 of the high-position reset link 9 abuts against the upper end surface of the outer shell 1, the high-position reset guide plate 10 stops moving, and at the same time, the high-position limit leaf 12 and the high-position limit link 11 descend and return to their initial positions, completing the reset of the high-position limit mechanism 7.

[0045] Then reset the low-level limit mechanism. First, press down the low-level reset link 17 through the gripping part 23, so that the low-level reset guide plate 18 slides down along the sliding groove 6, driving the rear end of the low-level limit link 19 to rotate along the second movable movable pin 21. At the same time, the low-level limit link 19 rotates downward along the fixed movable pin 16 in the center, and lowers the low-level limit baffle 20 to the same level as the inner wall of the floating groove 2. Since there is no obstruction of the low-level limit baffle 20, the low-level recording part 5 rises to below the float 3 under the action of the buoyancy of the liquid surface, completing the reset of the low-level recording part 5. When the grip 23 is released again, the low reset guide plate 18 drives the low reset link 17 to move downward along the sliding groove 6 under the action of the contraction tension of the low reset link spring 24. When the lower end of the second limit block 25 of the low reset link 17 abuts the lower end surface of the outer shell 1, the low reset guide plate 18 stops moving. At the same time, the low limit stopper 20 and the low limit link 19 descend and return to their initial positions, completing the reset of the low limit mechanism 8. The liquid level gauge is fully reset.

[0046] The present invention has a simple structure, is easy to operate, and has complete functions. It can be used as a real-time liquid level meter for daily monitoring of equipment, and can also record the historical highest and lowest liquid level data reached during the operation of the equipment at any time, so that operators and supervisors can more intuitively know the past operating conditions of the equipment and more quickly trace abnormal problems that occur during the operation of the equipment.

[0047] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A real-time liquid level gauge that automatically records the highest and lowest floating positions in the past, comprising an outer shell and a float disposed in a floating tank within the outer shell, characterized in that: It also includes a liquid level recording part, a limiting mechanism, and a sliding groove. The sliding groove is longitudinally arranged on the inner walls of both sides of the outer shell. The sliding groove is located behind the floating groove. The liquid level recording part is arranged in the floating groove. The liquid level recording part is arranged in the floating groove and is respectively located at the upper and lower ends of the float. The limiting mechanism can be slidably arranged in the sliding groove. The limiting mechanism is arranged behind the liquid level recording part. The limiting mechanism and the liquid level recording part are matched with a sliding card. A sealing gasket is provided in the lower surface of the upper end part of the outer shell and the upper surface of the lower end part. The liquid level recording part includes a high-level recording part and a low-level recording part. The high-level recording part is arranged above the float, and the low-level recording part is arranged below the float. The limiting mechanism includes a high-level limiting mechanism and a low-level limiting mechanism. The high-level limiting mechanism cooperates with the high-level recording part, and the low-level limiting mechanism cooperates with the low-level recording part. The rear end of the high position limit link is rotatably mounted on the high position reset guide plate by the first movable latch, and a plurality of high position limit stop leaves connected by the high position limit link are continuously and parallelly arranged on the high position reset guide plate. The front end portion of the high-position limit connecting rod is tilted downward, and the front end portion of the high-position limit baffle extends into the floating groove under normal recording conditions to limit the downward movement of the high-position recording part. The high-position limit baffle is an inwardly concave arc-shaped blade surface and is made of soft elastic material.

2. A real-time liquid level meter that automatically records the highest and lowest floating levels in the past according to claim 1, characterized in that: A scale observation portion is provided in the front end surface of the outer shell, and an identification scale protrusion is provided on each scale of the scale observation portion.

3. A real-time liquid level meter that automatically records the highest and lowest floating levels in the past according to claim 1, characterized in that: The low-position recording portion is made of a material having a density lower than that of the monitoring liquid.

4. A real-time liquid level meter that automatically records the highest and lowest floating levels in the past according to claim 1, characterized in that: The high-position recording part and the low-position recording part are horizontally arranged in the floating groove, the front end face of the high-position recording part is parallel to the inner end face of the front side of the floating groove, the rear end face of the high-position recording part is parallel to the inner end face of the rear side of the floating groove, the front end face of the low-position recording part is parallel to the inner end face of the front side of the floating groove, and the rear end face of the low-position recording part is parallel to the inner end face of the rear side of the floating groove.

5. A real-time liquid level meter that automatically records the highest and lowest floating levels in the past according to claim 1, characterized in that: The rear end of the low position limit link is rotatably mounted on the low position reset guide plate by a second movable latch, and a plurality of low position limit stop leaves connected by the low position limit link are continuously and parallelly arranged on the low position reset guide plate.

6. A real-time liquid level meter that automatically records the highest and lowest floating levels in the past according to claim 5, characterized in that: The front end portion of the low-level limit connecting rod is tilted upward, and the front end portion of the low-level limit baffle extends into the floating groove under normal recording conditions, so as to limit the upward movement of the low-level recording part. The low-level limit baffle is an inwardly concave arc-shaped blade surface, and the low-level limit baffle is made of soft elastic material.

7. A real-time liquid level meter that automatically records the highest and lowest floating levels in the past according to any one of claims 1 or 5, characterized in that: The low position limiting mechanism comprises a low position reset connecting rod, and the ends of the high position reset connecting rod and the low position reset connecting rod extending out of the outer shell are provided with a gripping portion.

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