Liquid level adjusting device and liquid storage container

Abstract

The invention belongs to the technical field of liquid level adjustment, and discloses a liquid level adjusting device and a liquid storage container. The liquid level adjusting device comprises an adjusting floating body, a driving mechanism and a liquid level detection mechanism, the adjusting floating body is arranged in the container, a cavity is formed in the adjusting floating body, and the adjusting floating body floats in the solution and is partially immersed in the solution; the driving mechanism is configured to drive the adjusting floating body to float and sink in the solution, so that the liquid level height in the container reaches a preset height; the liquid level detection mechanism is configured to detect a liquid level height inside the container. The liquid level detection mechanism is used for detecting the liquid level height, and when the liquid level height of the container needs to be adjusted, the driving mechanism is used for driving the adjusting floating body to float or sink in a solution, so that the liquid level height in the container reaches a preset height; a tank body, a pump body and a pipeline which are high in price do not need to be arranged, production cost can be saved, and production hidden dangers are reduced; meanwhile, the temperature of the solution can be kept constant so as to adapt to temperature-sensitive scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid level regulation, and in particular to a liquid level regulating device and a liquid storage container. Background Art

[0002] Liquid storage containers are specialized equipment used to store various liquids (including water, oil, chemicals, etc.), and are primarily used in the chemical industry, environmental protection projects, food and pharmaceuticals, and emergency storage. Some liquid storage containers are used to store corrosive solutions used in product processing, such as coating fluids for panel coatings and acidic, alkaline, or strong industrial cleaning agents for panel cleaning. In most cases, the liquid level in these containers must be maintained constant.

[0003] For example, a liquid storage container used to clean products requires precise adjustment of the liquid level within the container based on the number and / or size of the products. Understandably, when the number and size of the products remain constant and the cleaning liquid decreases due to evaporation or other factors, the liquid level must be promptly adjusted upward to maintain a constant level. However, when the number and size of the products change, the liquid level must be adjusted accordingly. Currently, this adjustment is primarily achieved by adding and extracting solution from the container.

[0004] The above-mentioned method of adjusting the liquid level requires additional storage of a certain amount of solution, and is equipped with a tank body, a pump body and supporting pipelines. Since the solution is corrosive, the corrosion resistance and sealing properties of the tank body, the pump body and the pipeline are required to be high. It is necessary to purchase tank bodies, pump bodies and pipelines specifically for corrosive solutions, which leads to an increase in production costs; secondly, since there is a temperature difference between the solution inside the liquid storage container and the solution inside the tank body, in temperature-sensitive scenarios, the solution in the tank body needs to be heated and cooled, which further increases the production cost; in addition, the corrosive solution outside the liquid storage container has the risk of leakage, which creates certain production hazards. Summary of the Invention

[0005] The object of the present invention is to provide a liquid level regulating device and a liquid storage container, so as to adjust the liquid level inside the liquid storage container while taking into account certain economic efficiency and reducing production risks.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A liquid level regulating device for regulating the liquid level of the solution in the container, the liquid level regulating device comprising:

[0008] A regulating float is disposed inside the container, the regulating float has a cavity inside, and the regulating float floats in the solution and is partially immersed in the solution;

[0009] a driving mechanism configured to drive the regulating float to float up and sink down in the solution so that the liquid level inside the container reaches a preset height; and

[0010] A liquid level detection mechanism is configured to detect a liquid level height inside the container.

[0011] Preferably, an overflow pipe is provided inside the container, the regulating float is arranged in a ring shape, and the regulating float is slidably sleeved on the outside of the overflow pipe.

[0012] Preferably, the regulating float is arranged higher than the overflow pipe, and the inner ring of the regulating float is sealed with the outer wall of the overflow pipe.

[0013] Preferably, the driving mechanism comprises:

[0014] a liquid supply pipe, the liquid supply pipe being in communication with the interior of the regulating float and capable of supplying regulating liquid to the interior of the regulating float; and

[0015] A liquid discharge pipe is communicated with the interior of the regulating float and is capable of extracting the regulating liquid from the interior of the regulating float.

[0016] Preferably, the driving mechanism comprises:

[0017] a sinking pull rope, one end of which is connected to the bottom of the regulating float, and the other end of which extends out of the bottom of the container; and

[0018] A winding roller is arranged outside the container and connected to the other end of the sinking pull rope. The winding roller can wind up the sinking pull rope so that the sinking pull rope pulls the regulating float to sink.

[0019] Preferably, a limiting ring is provided at the bottom of the container, the inner ring of the limiting ring is provided in an arc surface, and the sinking pull rope passes through the inner ring of the limiting ring.

[0020] Preferably, a sealing tube is provided on the outside of the sinking pull rope, the sealing tube is flexible, the sealing tube is placed inside the container, and the two ends of the sealing tube are respectively connected to the bottom of the regulating float and the inner wall of the container.

[0021] Preferably, both ends of the sealing tube are connected with sealing rings, and opposite sides of the two sealing rings are provided with annular grooves, and second sealing rings are provided inside the annular grooves. The two second sealing rings respectively abut the bottom of the regulating float and the inner wall of the container.

[0022] Preferably, an elastic member is provided between the regulating float and the bottom of the container, and the elastic member abuts against the regulating float.

[0023] The liquid storage container comprises a container body and a liquid level regulating device.

[0024] Beneficial effects of the present invention:

[0025] The liquid level regulating device of the present invention detects the liquid level inside the container through a liquid level detection mechanism. When the liquid level of the container needs to be adjusted, the driving mechanism drives the regulating float to float up or sink in the solution, thereby adjusting the liquid level by controlling the volume of the regulating float immersed in the solution, so that the liquid level inside the container reaches a preset height, completing the precise adjustment of the liquid level. As a result, there is no need to supply and extract corrosive solutions into and out of the container, thus eliminating the need for expensive tanks, pumps, and pipelines, saving production costs and reducing production risks. At the same time, the temperature of the solution can be maintained constant to accommodate temperature-sensitive scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 1 is a structural diagram of a first embodiment of a liquid level regulating device according to the present invention;

[0027] Figure 2 1 is a schematic structural diagram of the regulating float and the overflow pipe in the first embodiment of the present invention;

[0028] Figure 3 yes Figure 2 Cross-sectional view along AA direction;

[0029] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0030] Figure 5 1 is a schematic structural diagram of a driving mechanism in a second embodiment of a liquid level regulating device of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the sinking pull rope and the sealing tube in the second embodiment of the present invention.

[0032] In the picture:

[0033] 1. Adjusting float; 11. Cavity; 12. Sealing groove; 121. First sealing ring; 21. Liquid supply pipe; 22. Liquid discharge pipe; 23. Liquid supply tank; 24. Flow meter; 3. Liquid level detection mechanism; 31. Connecting pipe; 32. Liquid level sensor; 4. Elastic member; 51. Sinking rope; 52. Winding roller; 53. Sealing pipe; 531. Sealing ring; 5311. Ring groove; 54. Second sealing ring; 6. Container body; 61. Overflow pipe; 62. Liquid outlet pipe; 63. Limiting ring. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0035] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0038] Refer to the following Figures 1 to 6 The liquid level regulating device and the liquid storage container 6 provided by the present invention are described.

[0039] Reference Figure 1The liquid storage container includes a container body 6 and a liquid level adjustment device. The container body 6 is arranged horizontally and stores a corrosive solution therein. A liquid outlet pipe 62 and an overflow pipe 61 are connected to the bottom of the container body 6. Both the liquid outlet pipe 62 and the overflow pipe 61 are arranged vertically. The bottom ends of the liquid outlet pipe 62 and the bottom ends of the overflow pipe 61 extend out of the container body 6. The top end of the overflow pipe 61 is higher than a preset height of the solution to control the maximum liquid level within the container body 6. The liquid level adjustment device is designed to precisely adjust the liquid level within the container body 6, reduce production costs, and mitigate production risks. Please refer to the following embodiments for the specific structure of the liquid level adjustment device.

[0040] Example 1

[0041] Reference Figure 1 and Figure 2 The liquid level regulating device includes a regulating float 1, a driving mechanism and a liquid level detecting mechanism 3. The regulating float 1 is arranged inside the container body 6. The regulating float 1 has a cavity 11 inside. The regulating float 1 floats in the solution and is partially immersed in the solution. The driving mechanism is configured to drive the regulating float 1 to float up and sink in the solution so that the liquid level height inside the container reaches a preset height. The liquid level detecting mechanism 3 is configured to detect the liquid level height inside the container.

[0042] As described above, when the container body 6 is working, the liquid level inside the container body 6 is detected by the liquid level detection mechanism 3, so as to determine whether the liquid level needs to be adjusted according to the actual liquid level. If the liquid level is lower than the preset height, the driving mechanism drives the regulating float 1 to sink in the solution, so that the volume of the regulating float 1 immersed in the solution increases, thereby raising the liquid level. Conversely, if the liquid level is higher than the preset height, the regulating float 1 floats up in the solution through its own buoyancy, so that the volume of the regulating float 1 immersed in the solution decreases, and the liquid level decreases. In this way, precise adjustment of the liquid level is ultimately achieved, without the need to supply and extract corrosive solutions to the interior of the container, which can save production costs and reduce production risks. At the same time, the temperature of the solution can be kept constant, which can adapt to temperature-sensitive scenarios.

[0043] Specifically, the liquid level detection mechanism 3 includes a connecting tube 31, a liquid level sensor 32, and a controller. The middle section of the connecting tube 31 is vertically arranged, and both ends of the connecting tube 31 are connected to the interior of the cavity 11, allowing the solution to enter the middle section of the connecting tube 31. The liquid level inside the connecting tube 31 is consistent with the liquid level inside the container body 6. Multiple liquid level sensors 32 are fixedly installed on the exterior of the connecting tube 31, and the multiple liquid level sensors 32 are vertically distributed in the middle section of the connecting tube 31. The controller is electrically connected to the liquid level sensors 32, so that the liquid level inside the container body 6 is detected by the liquid level sensors 32. The controller compares the actual liquid level with the preset level to determine whether the liquid level inside the container body 6 needs to be adjusted and the adjustment range.

[0044] Preferably, the connecting tube 31 in this embodiment is made of a transparent material, such as acrylic or glass. In this embodiment, glass is used as an example, so that the staff can directly observe the liquid level inside the container body 6 from the outside of the container body 6 .

[0045] Preferably, the liquid level sensor 32 in this embodiment is a photoelectric liquid level sensor. This sensor determines the presence of liquid at the sensor location by using the difference in the refraction of light in water and air. The sensor contains a near-infrared light-emitting diode (LED) and a photosensor. When liquid submerges the sensor's lens, light is refracted into the liquid, causing the photosensor to receive only a small amount of light or no light, thereby accurately determining liquid level changes. Because the photoelectric liquid level sensor utilizes optical principles, it does not require direct contact with the liquid, thus avoiding contamination or corrosion. The sensor utilizes optical signals, resulting in high sensitivity and accuracy, enabling more precise detection of liquid level changes.

[0046] Optionally, in some other embodiments, the liquid level detection mechanism 3 may also only include a liquid level sensor 32 and a controller, and the liquid level sensor 32 is a floating liquid level gauge built into the container body 6.

[0047] Reference Figure 2 and Figure 3 Furthermore, the regulating float 1 is arranged in a ring shape, and the regulating float 1 is slidably mounted on the outside of the overflow pipe 61. The regulating float 1 is thereby guided and limited by the overflow pipe 61, so that the posture of the regulating float 1 is fixed, that is, the regulating float 1 can only sink and float in the vertical direction, and is not prone to tilting and tipping in the solution. This not only facilitates precise adjustment of the liquid level, but also prevents fluctuations in the liquid level caused by changes in the posture of the regulating float 1. Optionally, in some other embodiments, the regulating float 1 can also be slidably mounted on the outside of the liquid outlet pipe 62; or, a limiting tube can be directly provided inside the container body 6, and the regulating float 1 can be slidably mounted on the outside of the limiting tube.

[0048] Preferably, in this embodiment, the adjustable float 1 is positioned higher than the top of the overflow tube 61. The top of the adjustable float 1 serves as the inlet of the overflow tube 61. The overflow height is controlled by adjusting the float 1, ensuring that the difference between the overflow height and the preset liquid level remains consistent. This means that the overflow height changes synchronously with the preset liquid level, thereby preventing adverse effects caused by improper overflow height settings. It is understood that if the overflow height is too low, the solution will overflow prematurely, while if the overflow height is too high, effective overflow will not occur at higher liquid levels.

[0049] Reference Figure 4 To prevent the solution from overflowing the overflow pipe 61 from between the inner ring of the regulating float 1 and the overflow pipe 61, the inner ring of the regulating float 1 is sealed against the outer wall of the overflow pipe 61. Specifically, an annular sealing groove 12 is defined in the inner ring of the regulating float 1. A first sealing ring 121 is positioned within the sealing groove 12. The inner ring of the first sealing ring 121 abuts against the outer wall of the overflow pipe 61, thereby achieving a seal between the inner ring of the regulating float 1 and the overflow pipe 61. Optionally, in other embodiments, a sealing groove 12 may be defined in the outer wall of the overflow pipe 61.

[0050] Exemplarily, the driving mechanism includes a liquid supply pipe 21 and a liquid discharge pipe 22. The liquid supply pipe 21 is in communication with the interior of the regulating float 1 and is capable of supplying regulating liquid to the interior of the regulating float 1. The liquid discharge pipe 22 is in communication with the interior of the regulating float 1 and is capable of withdrawing the regulating liquid from the interior of the regulating float 1. When the liquid supply pipe 21 supplies regulating liquid to the interior of the regulating float 1, the weight of the regulating float 1 increases, causing the regulating float 1 to sink, thereby raising the liquid level inside the container body 6. When the liquid discharge pipe 22 withdraws the regulating liquid from the interior of the regulating float 1, the weight of the regulating float 1 decreases, causing the regulating float 1 to automatically float upward under its own buoyancy, thereby lowering the liquid level inside the container body 6. This drives the regulating float 1 to float and sink.

[0051] Optionally, the regulating liquid in this embodiment is any liquid, and a liquid with extremely low cost and no corrosiveness can be selected as the regulating liquid, thereby reducing production costs and reducing safety hazards. In this embodiment, a high concentration sodium chloride solution is preferred, and the density of the high concentration sodium chloride solution is generally in the range of 1.1-1.2 g / cm 3 The density of high-concentration sodium chloride solution is larger, that is, the weight of the regulating liquid is larger under the same volume, so the weight of the regulating float 1 can be adjusted quickly to improve the adjustment efficiency of the liquid level height.

[0052] Furthermore, the driving mechanism also includes a liquid supply tank 23, and the ends of the liquid supply pipe 21 and the liquid discharge pipe 22 away from the regulating float 1 are both connected to the liquid supply tank 23, and a water pump is connected in the middle of the liquid supply pipe 21 and the liquid discharge pipe 22. The regulating liquid is pumped by the water pump, so that the regulating liquid in the liquid supply tank 23 can be sent to the regulating float 1 through the liquid supply pipe 21, and the regulating liquid in the regulating float 1 can be sent to the liquid supply tank 23 through the liquid discharge pipe 22.

[0053] In order to monitor and control the supply and extraction of the regulating liquid, a flow meter 24 is provided in the middle of the liquid supply pipe 21 and the liquid discharge pipe 22. Both the water pump and the flow meter 24 are electrically connected to the controller to accurately control the supply and extraction of the regulating liquid.

[0054] Reference Figure 1 In addition, an elastic member 4 is provided between the regulating float 1 and the bottom of the container. The elastic member 4 abuts against the regulating float 1. In this embodiment, the elastic member 4 is a spring, which is sleeved on the outside of the overflow pipe 61. The two ends of the spring are respectively connected to the regulating float 1 and the container, thereby supporting and limiting the regulating float 1 through the spring. When the regulating float 1 needs to float up, the spring assists the regulating float 1 in quickly resetting to prevent the regulating float 1 from getting stuck and causing failure. Optionally, in some other embodiments, the regulating float 1 can also be placed directly above the spring.

[0055] Example 2

[0056] Reference Figure 5 and Figure 6 The difference between this embodiment and the first embodiment is that the driving mechanism includes a sinking pull rope 51 and a winding roller 52, one end of the sinking pull rope 51 is connected to the bottom of the regulating float 1, and the other end of the sinking pull rope 51 extends downward from the bottom of the container body 6 and is connected to the winding roller 52; the winding roller 52 is arranged on the outside of the container body 6, and the winding roller 52 can rewind the sinking pull rope 51 so that the sinking pull rope 51 pulls the regulating float 1 to sink.

[0057] By directly connecting a sinking rope 51 to the bottom of the regulating float 1, and connecting the other end of the sinking rope 51 to a take-up roller 52, when the take-up roller 52 rotates forward, the sinking rope 51 is reeled in, thereby pulling the regulating float 1 downward, increasing the volume of the regulating float 1 submerged in the solution, and at this time, the liquid level inside the regulating float 1 rises. Conversely, when the take-up roller 52 rotates backward, the sinking rope 51 is unwound, loosening the sinking rope 51, and the regulating float 1 floats up under its own buoyancy, causing the liquid level inside the container body 6 to drop, thereby achieving liquid level adjustment. The structure is simpler and more compact, and the take-up roller 52 in this embodiment is driven by a servo motor, which can accurately control the reeling length of the sinking rope 51, thereby achieving precise adjustment of the liquid level.

[0058] In addition, since the sinking pull rope 51 can be bent, the winding roller 52 can be arranged at the bottom of the container body 6 or the side of the container, which has less restrictions on the installation position and is convenient for arrangement. The winding roller 52 in this embodiment is located at the bottom of the container body 6.

[0059] Furthermore, multiple sinking ropes 51 are provided along the circumference of the regulating float 1. In this embodiment, two are used as an example, and a reel 52 is provided for each sinking rope 51. Thus, the two sinking ropes 51 pull down the regulating float 1, making the force on the regulating float 1 more uniform and preventing the regulating float 1 from tilting.

[0060] To protect and limit the position of the sinking rope 51, a limit ring 63 is connected to the bottom of the container body 6. The limit ring 63 is installed through the container body 6. The inner ring of the limit ring 63 is designed to be curved, and the sinking rope 51 passes through the inner ring of the limit ring 63. This prevents the sinking rope 51 from being damaged by frequent scrapes against edges when the sinking rope 51 is pulled. In particular, when the winding roller 52 is placed to the side of the sinking rope 51, the sinking rope 51 can move along the curved surface, preventing the sinking rope 51 from being worn.

[0061] Furthermore, the exterior of the sinking rope 51 is sheathed with a flexible sealing tube 53. In this embodiment, the sealing tube 53 is a rubber hose; in other embodiments, a bellows or similar material may be used. The sealing tube 53 is placed inside the container, with its ends connected to the bottom of the regulating float 1 and the inner wall of the container, respectively. The inner diameter of the sealing tube 53 is larger than the outer diameter of the retaining ring 63. This seals the sinking rope 51 and the solution, preventing the solution from leaking directly through the gap between the retaining ring 63 and the sinking rope 51 or from being absorbed by the sinking rope 51 and causing leakage. The sealing tube 53 also protects the sinking rope 51, preventing corrosion and extending its service life. It is worth noting that the sealing tube 53 also prevents dust on the sinking rope 51 from contaminating the solution.

[0062] Furthermore, sealing rings 531 are fixedly connected to both ends of the sealing tube 53. An annular groove 5311 is provided on opposite sides of the two sealing rings 531. A second sealing ring 54 is positioned within each annular groove 5311. The second sealing ring 54 extends beyond the annular groove 5311 and abuts the bottom of the regulating float 1 and the inner wall of the container, respectively. Thus, the two second sealing rings 54 seal the ends of the sealing tube 53, preventing solution from entering the interior of the sealing tube 53 through the ends.

[0063] Obviously, the above-described 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. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. 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 liquid level regulating device for regulating the liquid level of the internal solution of a container, characterized in that: The liquid level regulating device comprises: A regulating float (1), the regulating float (1) being arranged inside the container, the regulating float (1) having a cavity (11) therein, the regulating float (1) floating in the solution and partially immersed in the solution; a driving mechanism configured to drive the regulating float (1) to float up and sink in the solution so that the liquid level inside the container reaches a preset height; and A liquid level detection mechanism (3) is configured to detect the height of the liquid level inside the container.

2. The liquid level regulating device according to claim 1, characterized in that: An overflow pipe (61) is provided inside the container, the regulating float (1) is arranged in an annular shape, and the regulating float (1) is slidably sleeved on the outside of the overflow pipe (61).

3. The liquid level regulating device according to claim 2, characterized in that: The regulating float (1) is arranged higher than the overflow pipe (61), and the inner ring of the regulating float (1) is sealed and matched with the outer wall of the overflow pipe (61).

4. The liquid level regulating device according to any one of claims 1 to 3, characterized in that: The driving mechanism comprises: a liquid supply pipe (21), the liquid supply pipe (21) being in communication with the interior of the regulating float (1), the liquid supply pipe (21) being capable of supplying regulating liquid to the interior of the regulating float (1); and A liquid discharge pipe (22) is connected to the interior of the regulating float (1), and the liquid discharge pipe (22) can extract the regulating liquid inside the regulating float (1).

5. The liquid level regulating device according to any one of claims 1 to 3, characterized in that: The driving mechanism comprises: a sinking pull rope (51), one end of which is connected to the bottom of the regulating float (1), and the other end of which extends out of the bottom of the container; and A winding roller (52) is provided outside the container and connected to the other end of the sinking pull rope (51). The winding roller (52) can wind up the sinking pull rope (51) so that the sinking pull rope (51) pulls the regulating float (1) to sink.

6. The liquid level regulating device according to claim 5, characterized in that: A limiting ring (63) is provided at the bottom of the container, the inner ring of the limiting ring (63) is provided in an arc surface, and the sinking pull rope (51) passes through the inner ring of the limiting ring (63).

7. The liquid level regulating device according to claim 5, characterized in that: The outer portion of the sinking pull rope (51) is provided with a sealing tube (53), the sealing tube (53) is flexible, the sealing tube (53) is placed inside the container, and the two ends of the sealing tube (53) are respectively connected to the bottom of the regulating float (1) and the inner wall of the container.

8. The liquid level regulating device according to claim 7, characterized in that: Both ends of the sealing tube (53) are connected to sealing rings (531), and opposite sides of the two sealing rings (531) are provided with annular grooves (5311). The interior of the annular grooves (5311) is provided with second sealing rings (54), and the two second sealing rings (54) respectively abut against the bottom of the regulating float (1) and the inner wall of the container.

9. The liquid level regulating device according to any one of claims 1 to 3, characterized in that: An elastic member (4) is provided between the regulating float (1) and the bottom of the container, and the elastic member (4) abuts against the regulating float (1).

10. A liquid storage container, comprising a container body (6), characterized in that: The liquid storage container further comprises a liquid level regulating device as described in any one of claims 1-9.

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