A liquid level monitoring device based on sliding nano-friction power generation

Abstract

This invention discloses a liquid level monitoring device based on sliding nano-triboelectric power generation. The device includes a floating component, a sliding assembly, a guiding assembly, and a processing assembly. The sliding assembly moves synchronously with the floating component under the drive of the floating component and the force of gravity. Guided by the guiding assembly, it drives a first friction unit to slide relative to a second friction unit to adjust the contact area between the first and second friction units and generate liquid level through sliding triboelectric power generation. The processing assembly is electrically connected to the first and second friction units, receives the electrical signals from the sliding friction between the two units, and outputs liquid level information. This invention provides a liquid level monitoring device based on sliding nano-triboelectric power generation, utilizing the principle of sliding nano-triboelectric power generation for real-time liquid level monitoring, which is simple and efficient.

Description

Technical Field

[0001] This invention relates to liquid level monitoring devices, and more particularly to a liquid level monitoring device based on sliding nano-triboelectric power generation. Background Technology

[0002] Nano-triboelectric generators are devices that generate electricity based on the triboelectric effect, including four types: sliding triboelectric nanogenerators, contact-separation triboelectric nanogenerators, single-electrode triboelectric nanogenerators, and inductive triboelectric nanogenerators. The principle of the sliding triboelectric nanogenerator is that when two thin layers of triboelectric materials with different polarities undergo sliding friction, charge transfer occurs, creating a potential difference between them. In an external circuit, electrons flow between the two electrode layers, which are respectively attached to the back of the triboelectric material layers, driven by this potential difference, thereby balancing the potential difference and outputting an electrical signal, thus converting external mechanical energy into electrical energy. Nano-triboelectric generators have excellent output performance, and their high efficiency at low frequencies is unmatched by similar technologies. Therefore, the principle of nano-triboelectric generation, such as the sliding triboelectric nanogenerator principle, can be used for dynamic information sensing and monitoring, such as liquid level monitoring. Currently, there is no device for liquid level monitoring using the sliding triboelectric nanogenerator principle. Summary of the Invention

[0003] The purpose of this invention is to provide a liquid level monitoring device based on sliding nano-triboelectric power generation to solve the problems existing in the prior art. It utilizes the principle of sliding nano-triboelectric power generation for real-time liquid level monitoring, which is simple and efficient.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] This invention provides a liquid level monitoring device based on sliding nano-triboelectric power generation, comprising a floating component, a sliding assembly, a guiding assembly, and a processing assembly. The floating component floats on the liquid surface and can rise and fall with the liquid level. The sliding assembly is fixedly connected to the floating component, and a first friction unit is fixedly disposed on the sliding assembly. The guiding assembly is fixedly disposed on a fixed surface, and the sliding assembly is movably connected to the guiding assembly, and a second friction unit is fixedly disposed on the guiding assembly, the second friction unit being able to contact the surface of the first friction unit. The sliding assembly can move synchronously with the floating component under the driving force of the floating component and gravity, and under the guidance of the guiding assembly, it drives the first friction unit to slide relative to the second friction unit to adjust the contact area between the first and second friction units and generate electricity through sliding triboelectric power generation. The processing assembly is electrically connected to the first and second friction units, and the processing assembly is used to receive the electrical signals of the sliding friction between the first and second friction units and output liquid level information.

[0006] Preferably, the sliding component is slidably connected to the guide component, and the floating component can move vertically relative to the guide component under the guidance of the guide component, thereby driving the first friction unit to slide vertically relative to the second friction unit to adjust the contact area between the first friction unit and the second friction unit.

[0007] Preferably, the sliding assembly includes a connecting rod and a slider, the first friction unit is disposed on the peripheral side of the slider, the slider and the connecting rod are disposed above the floating component, the length direction of the connecting rod is vertical, and both ends are fixedly connected to the slider and the floating component respectively; the slider is slidably connected to the guide assembly.

[0008] Preferably, the guiding assembly includes a guide frame for being fixedly mounted on the fixed surface. The guide frame is provided with a guide groove, and the inner wall of the guide groove is provided with the second friction unit. The slider can extend vertically into the guide groove and slide in connection with the guide groove, so that the first friction unit and the second friction unit can maintain surface contact to generate electricity through sliding friction.

[0009] Preferably, the guide assembly further includes a first adjustment component, which can be connected to the guide frame and the slider, and can adjust the position of the slider in the guide groove along a first direction to adjust the friction force of the first friction unit and the second friction unit.

[0010] Preferably, the first adjusting component includes at least one first set screw, and the guide frame is provided with at least one first threaded hole. Each first set screw is threadedly connected to one of the first threaded holes, and one end of each first set screw can pass through the corresponding first threaded hole and extend into the guide groove to contact the side of the slider away from the first friction unit.

[0011] Preferably, the guide assembly further includes a support frame and at least two guide rods arranged side by side. The support frame is fixedly connected to the guide frame. The length direction of each guide rod is arranged in the vertical direction. Both guide rods can be connected to the support frame and maintain a fixed relative position. The slider can be slidably connected to both guide rods.

[0012] Preferably, the guide assembly further includes a second adjustment component, which can be connected to the support frame and each of the guide rods, and can adjust the relative position of each guide rod and the support frame along the first direction so that each guide rod remains vertical.

[0013] Preferably, the second adjusting component includes two second set screws, two connecting blocks, and two elastic components. The support frame is provided with two limiting grooves and two second threaded holes. The two connecting blocks are respectively fixedly connected to the ends of the two guide rods away from the slider and can respectively extend into the two limiting grooves. One end of each of the two elastic components is respectively fixedly connected to one side of the two connecting blocks in the first direction, and the other end of each of the two elastic components is respectively fixedly connected to one inner sidewall of the two limiting grooves in the first direction. The two second set screws are respectively threadedly connected to the two second threaded holes, and one end of each second set screw can pass through the corresponding second threaded hole and extend into the limiting groove to contact the side of the connecting block away from the elastic component, and can squeeze the corresponding elastic component to cause the elastic component to undergo elastic deformation.

[0014] Preferably, the guide frame includes a crossbeam, a base plate, and two vertically arranged columns. The crossbeam is provided with the guide groove. Both ends of the crossbeam are detachably connected to the upper ends of the two columns, and the bottom ends of the two columns are detachably connected to the base plate. The base plate is provided with through holes for the floating component and the sliding assembly to move vertically.

[0015] The present invention achieves the following technical effects compared to the prior art:

[0016] The liquid level monitoring device based on sliding nano-triboelectric power generation provided by this invention has a floating component that can rise and fall with the liquid level and drive the sliding assembly to move synchronously. Under the guidance of the guide assembly, the first friction unit on the sliding assembly and the second friction unit on the guide assembly slide and rub against each other, generating electricity. When the liquid level rises, the floating component rises, driving the sliding assembly and the first friction unit to rise synchronously, causing the position of the first friction unit relative to the second friction unit in the vertical direction to change, and thus changing the surface contact area between the first and second friction units. Similarly, when the liquid level drops, the sliding assembly and the floating component can drop with the liquid level under the action of gravity, causing the position of the first friction unit relative to the second friction unit in the vertical direction to change, and thus changing the surface contact area between the first and second friction units. The magnitude of the electrical signals, such as current or voltage, generated by the sliding contact friction of the unit is related to the surface contact area of ​​the first and second friction units. When the surface contact area of ​​the first and second friction units changes, the electrical signals generated by the sliding contact friction of the first and second friction units change accordingly. Thus, the processing component can determine the size of the surface contact area of ​​the first and second friction units by the magnitude of the received electrical signals, and convert it into the vertical height position of the first friction unit relative to the second friction unit according to the cooperation relationship of the first and second friction units. Since the floating component and the sliding component move synchronously, the change in the vertical height position of the first friction unit relative to the second friction unit is the change in liquid level. Thus, the processing component can output liquid level information according to the received electrical signals, realizing real-time monitoring of the liquid level in a simple and efficient manner. Attached Figure Description

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the liquid level monitoring device based on sliding nano-triboelectric power generation provided in Example 1;

[0019] Figure 2 This is a schematic diagram of the structure of the guide component provided in Embodiment 1;

[0020] Figure 3 A schematic diagram of the mating structure of the floating component and the sliding assembly provided in Embodiment 1;

[0021] Figure 4 A schematic diagram of the structure and operation of the guide rod and the second adjustment component provided in Embodiment 1;

[0022] Figure 5 This is a structural schematic diagram of the support frame provided in Embodiment 1.

[0023] Icons: 1- Liquid level monitoring device based on sliding nano-triboelectric power generation; 10- Floating component; 20- Sliding assembly; 21- Connecting rod; 22- Slider; 30- First friction unit; 40- Guide assembly; 41- Guide frame; 411- Crossbeam; 412- Base plate; 413- Column; 414- Through hole; 42- Guide groove; 43- First adjusting component; 431- First set screw; 432- First threaded hole; 44- Support frame; 441- Limiting groove; 45- Guide rod; 46- Third adjusting component; 461- Second set screw; 462- Connecting block; 463- Elastic component; 464- Second threaded hole; 50- Second friction unit. Detailed Implementation

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The purpose of this invention is to provide a liquid level monitoring device based on sliding nano-triboelectric power generation, so as to solve the problems existing in the prior art. It utilizes the principle of sliding nano-triboelectric power generation for real-time liquid level monitoring, which is simple and efficient.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] This embodiment provides a liquid level monitoring device 1 based on sliding nano-triboelectric power generation. Please refer to [link to relevant documentation]. Figures 1-3The system includes a floating component 10, a sliding component 20, a guiding component 40, and a processing component. The floating component 10 floats on the liquid surface and can rise and fall with the liquid level. The sliding component 20 is fixedly connected to the floating component 10, and a first friction unit 30 is fixedly disposed on the sliding component 20. The guiding component 40 is fixedly disposed on a fixed surface, and the sliding component 20 is movably connected to the guiding component 40. A second friction unit 50 is fixedly disposed on the guiding component 40, and the second friction unit 50 can contact the surface of the first friction unit 30. The sliding component 20 can move synchronously with the floating component 10 under the drive of the floating component 10 and the action of gravity, and under the guidance of the guiding component 40, it drives the first friction unit 30 to slide relative to the second friction unit 50 to adjust the contact area of ​​the first friction unit 30 and the second friction unit 50 and generate electricity through sliding friction. The processing component is electrically connected to the first friction unit 30 and the second friction unit 50, and the processing component is used to receive the electrical signals of the sliding friction of the first friction unit 30 and the second friction unit 50 and output liquid level information.

[0029] The floating component 10 can rise and fall with the liquid level and drive the sliding component 20 to move synchronously. Under the guidance of the guide component 40, the first friction unit 30 on the sliding component 20 and the second friction unit 50 on the guide component 40 slide and rub against each other, generating electricity. When the liquid level rises, the floating component 10 rises, driving the sliding component 20 and the first friction unit 30 to rise synchronously, causing the position of the first friction unit 30 relative to the second friction unit 50 in the vertical direction to change, and thus changing the surface contact area between the first friction unit 30 and the second friction unit 50. Similarly, when the liquid level drops, the sliding component 20 and the floating component 10 can drop with the liquid level under the action of gravity, causing the position of the first friction unit 30 relative to the second friction unit 50 in the vertical direction to change, and thus changing the surface contact area between the first friction unit 30 and the second friction unit 50. Due to the sliding contact between the first friction unit 30 and the second friction unit 50... The magnitude of the electrical signals, such as current or voltage, generated by contact friction is related to the surface contact area of ​​the first friction unit 30 and the second friction unit 50. When the surface contact area of ​​the first friction unit 30 and the second friction unit 50 changes, the electrical signals generated by the sliding contact friction of the first friction unit 30 and the second friction unit 50 change accordingly. Thus, the processing component can determine the size of the surface contact area of ​​the first friction unit 30 and the second friction unit 50 by the magnitude of the received electrical signals, and convert it into the vertical height position of the first friction unit 30 relative to the second friction unit 50 according to the cooperation relationship of the first friction unit 30 and the second friction unit 50. Since the floating component 10 and the sliding component 20 move synchronously, the change in the vertical height position of the first friction unit 30 relative to the second friction unit 50 is the change in liquid level. Thus, the processing component can output liquid level information according to the received electrical signals to realize real-time monitoring of liquid level.

[0030] Specifically, the fixed surface can be the ground or the wall of a container used to hold liquid, so that the guide component 40 remains stable and does not move with changes in liquid level.

[0031] More preferably, the sliding component 20 is slidably connected to the guide component 40, and the floating component 10 can move vertically relative to the guide component 40 under the guidance of the guide component 40, driving the first friction unit 30 to slide vertically relative to the second friction unit 50 to adjust the contact area of ​​the first friction unit 30 and the second friction unit 50; thus, the height change of the floating component 10 is synchronized with the vertical linear movement of the first friction unit 30, and the change in the contact area of ​​the first friction unit 30 and the second friction unit 50 directly depends on the vertical displacement of the first friction unit 30 and the floating component 10. Specifically, this can be determined first through experiments. The magnitude of the electrical signal generated by the sliding friction of the first friction unit 30 and the second friction unit 50 when they have different contact areas is determined. Then, the relationship between the magnitude of the electrical signal and the vertical displacement of the first friction unit 30 is found. Thus, during use, with the first friction unit 30 and the second friction unit 50 having a certain contact area as the initial state, when the liquid level rises or falls, both the first friction unit 30 and the second friction unit 50 can change their sliding contact area and emit electrical signals. The processing component determines the vertical displacement of the first friction unit 30 based on the magnitude and change of the received electrical signal, and then determines the change in liquid level, realizing real-time monitoring of the liquid level.

[0032] More preferably, the floating component 10 is configured as a foam ball with sufficient buoyancy.

[0033] In the optional solutions of this embodiment, a more preferred option is described in the following description: Figure 3 The sliding assembly 20 includes a connecting rod 21 and a slider 22. A first friction unit 30 is disposed on the peripheral side of the slider 22, i.e., the first friction unit 30 is vertically disposed. A second friction unit 50 is also vertically disposed. During the vertical sliding of the slider 22, the first friction unit 30 can generate electricity through sliding friction with the second friction unit 50. The slider 22 and the connecting rod 21 are disposed above the floating component 10. The length direction of the connecting rod 21 is vertical, and its two ends are fixedly connected to the slider 22 and the floating component 10, respectively. The slider 22 is slidably connected to the guide assembly 40. The floating component 10 is connected to the slider 22 through the connecting rod 21 and can drive the slider 22 to slide vertically.

[0034] More preferably, the sliding component 20 is made of a lightweight material, enabling the floating component 10 to drive the sliding component 20 to move vertically.

[0035] More preferably, the two ends of the connecting rod 21 are threadedly connected to the floating component 10 and the slider 22, which facilitates installation and allows the distance between the floating component 10 and the slider 22 to be adjusted according to actual needs.

[0036] In the optional solutions of this embodiment, a more preferred option is described in the following description: Figure 2 The guide assembly 40 includes a guide frame 41, which is fixedly mounted on a fixed surface. A guide groove 42 is provided on the guide frame 41, and a second friction unit 50 is provided on the inner wall of the guide groove 42. The guide groove 42 is vertically arranged, and the second friction unit 50 is vertically arranged on the inner wall of the guide groove 42. The slider 22 can extend vertically into the guide groove 42 and slide in connection with the guide groove 42. The first friction unit 30 and the second friction unit 50 can maintain surface contact to generate electricity through sliding friction.

[0037] Specifically, the first friction unit 30 and the second friction unit 50 can both be set as rectangles to facilitate the determination of the vertical displacement of the first friction unit 30. Both the first friction unit 30 and the second friction unit 50 include a friction layer and an electrode layer. An electrode layer is provided between the friction layer of the first friction unit 30 and the slider 22. Similarly, an electrode layer is also provided between the friction layer of the second friction unit 50 and the guide groove 42. The two friction layers slide against each other, and the two electrode layers are connected to the processing component circuit to receive the electrical signals generated by the sliding friction.

[0038] In an optional embodiment, more preferably, the guide assembly 40 further includes a first adjustment component 43. The first adjustment component 43 can be connected to the guide frame 41 and the slider 22, and can adjust the position of the slider 22 in the guide groove 42 along a first direction to adjust the friction force of the first friction unit 30 and the second friction unit 50. The first direction is the direction perpendicular to the first friction unit 30 and the second friction unit 50 on the horizontal plane. By adjusting the friction force between the first friction unit 30 and the second friction unit 50, the strength of the electrical signal can be adjusted, which is convenient for the receiving and processing of the processing component.

[0039] Further preferred, please refer to Figure 1 and Figure 2 The first adjusting component 43 includes at least one first set screw 431, and the guide frame 41 is provided with at least one first threaded hole 432. Each first set screw 431 is threaded to a first threaded hole 432, and the axial direction of the first threaded hole 432 is along the first direction. One end of each first set screw 431 can pass through the corresponding first threaded hole 432 and extend into the guide groove 42 to contact the side of the slider 22 away from the first friction unit 30. The friction between the first friction unit 30 and the second friction unit 50 can be adjusted by adjusting the depth of the first set screw 431 screwed into the guide groove 42, which is convenient for operation.

[0040] More preferably, the number of first set screws 431 and first threaded holes 432 is set to be multiple, so that each first set screw 431 contacts different positions on the side of the slider 22 to achieve precise adjustment, while also preventing the slider 22 from deflecting in the guide groove 42.

[0041] In the optional solutions of this embodiment, a more preferred option is described in the following description: Figure 2 The guide assembly 40 also includes a support frame 44 and at least two guide rods 45 arranged side by side. The support frame 44 is fixedly connected to the guide frame 41. The length direction of each guide rod 45 is arranged in the vertical direction. Both guide rods 45 can be connected to the support frame 44 and maintain a fixed relative position. The slider 22 can be slidably connected to both guide rods 45. The two guide rods 45 can further guide the vertical movement of the slider 22, preventing the slider 22 from deflecting relative to the guide groove 42, so that the first friction unit 30 and the second friction unit 50 can slide and rub smoothly. Specifically, the slider 22 is provided with two guide holes, and the two guide rods 45 are respectively fitted with the two guide holes with sliding clearance.

[0042] In the optional solutions of this embodiment, a more preferred option is described in the following description: Figure 2 and Figure 5 The guide assembly 40 also includes a second adjustment component 46, which can be connected to the support frame 44 and each guide rod 45, and can adjust the relative position of each guide rod 45 with the support frame 44 in the first direction so that each guide rod 45 remains vertical. Since the first adjustment component 43 can adjust the position of the slider 22 in the guide groove 42, the slider 22 causes the guide rod 45 to deviate, and the guide rod 45 cannot remain vertical. Therefore, by adjusting the position of the guide rod 45 by the second adjustment component 46, the guide rod 45 is kept vertical, and the slider 22 can continue to be vertically guided.

[0043] Further preferred, please refer to Figure 1 , Figure 4 and Figure 5The second adjusting component 46 includes two second set screws 461, two connecting blocks 462, and two elastic components 463. The support frame 44 is provided with two limiting grooves 441 and two second threaded holes 464. The two connecting blocks 462 are respectively fixedly connected to one end of the two guide rods 45 away from the slider 22, and can respectively extend into the two limiting grooves 441. One end of each of the two elastic components 463 is respectively fixedly connected to one side of the two connecting blocks 462 in the first direction, and the other end of each elastic component 463 is respectively connected to the two limiting grooves 441 in the first direction. The inner sidewall is fixedly connected in the direction, and two second set screws 461 are respectively threaded to two second threaded holes 464. One end of each second set screw 461 can pass through the corresponding second threaded hole 464 and extend into the limiting groove 441 to contact the side of the connecting block 462 away from the elastic member 463. It can squeeze the corresponding elastic member 463 to make the elastic member 463 elastically deform. The position of the connecting block 462 in the limiting groove 441 is adjusted and fixed by the cooperation of the second set screw 461 and the elastic member 463, so that the guide rod 45 remains vertical.

[0044] Specifically, the elastic component 463 is configured as a spring, with one end of the spring fixedly connected to the limiting groove 441 via a spring sleeve, and the other end fixedly connected to the connecting block 462 via a gasket.

[0045] In the optional solutions of this embodiment, a more preferred option is described in the following description: Figure 1 The guide frame 41 includes a crossbeam 411, a base plate 412, and two vertically arranged columns 413. The columns 413 and the base plate 412 provide support, and the fixing plate 412 is fixedly connected to the fixing surface. The crossbeam 411 is provided with a guide groove 42, and both ends of the crossbeam 411 are detachably connected to the upper ends of the two columns 413 respectively. Specifically, the upper end of the column 413 is provided with a slot, and the crossbeam 411 is engaged in the slot. The bottom ends of the two columns 413 are detachably connected to the base plate 412. Specifically, the columns 413 and the base plate 412 are connected by screws. The base plate 412 is provided with a through hole 414 for the vertical movement of the floating component 10 and the sliding component 20, so that the base plate 412 does not interfere with the movement of the floating component 10 and the sliding component 20.

[0046] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A liquid level monitoring device based on sliding nano-triboelectric power generation, characterized in that: include: A floating component (10) is used to float on the liquid surface and can rise and fall with the liquid level; The sliding assembly (20) includes a connecting rod (21) and a slider (22). A first friction unit (30) is provided on the peripheral side of the slider (22). The slider (22) and the connecting rod (21) are disposed above the floating component (10), and their two ends are fixedly connected to the slider (22) and the floating component (10) respectively. The guide assembly (40) includes a guide frame (41) and a first adjusting component (43). The guide frame (41) is fixedly mounted on a fixed surface. The slider (22) is slidably connected to the guide assembly (40). The guide frame (41) is provided with a guide groove (42), and a second friction unit (50) is provided on the inner wall of the guide groove (42). The slider (22) can extend vertically into the guide groove (42) and slidably connect with the guide groove (42). The sliding assembly (20) can move and interact with the floating component (10) under the drive of the floating component (10) and the force of gravity. The moving component (10) moves synchronously and, under the guidance of the guide assembly (40), drives the first friction unit (30) to slide relative to the second friction unit (50) to adjust the contact area of ​​the first friction unit (30) and the second friction unit (50) and generate electricity through sliding friction; and the first adjusting component (43) can be connected to the guide frame (41) and the slider (22), and can adjust the position of the slider (22) in the guide groove (42) along the first direction to adjust the friction force of the first friction unit (30) and the second friction unit (50); and The processing component is circuitally connected to the first friction unit (30) and the second friction unit (50). The processing component is used to receive the electrical signals of sliding friction between the first friction unit (30) and the second friction unit (50) and output liquid level information.

2. The liquid level monitoring device based on sliding nano-triboelectric power generation according to claim 1, characterized in that: The floating component (10) can move vertically relative to the guide component (40) under the guidance of the guide component (40), causing the first friction unit (30) to slide vertically relative to the second friction unit (50) to adjust the contact area between the first friction unit (30) and the second friction unit (50).

3. The liquid level monitoring device based on sliding nano-triboelectric power generation according to claim 2, characterized in that: The length of the connecting rod (21) is along the vertical direction.

4. The liquid level monitoring device based on sliding nano-triboelectric power generation according to claim 3, characterized in that: The first adjusting component (43) includes at least one first set screw (431), and the guide frame (41) is provided with at least one first threaded hole (432). Each first set screw (431) is threadedly connected to a first threaded hole (432). One end of each first set screw (431) can pass through the corresponding first threaded hole (432) and extend into the guide groove (42) to contact the side of the slider (22) away from the first friction unit (30).

5. The liquid level monitoring device based on sliding nano-triboelectric power generation according to claim 4, characterized in that: The guide assembly (40) further includes a support frame (44) and at least two guide rods (45) arranged side by side. The support frame (44) is fixedly connected to the guide frame (41). The length direction of each guide rod (45) is arranged in the vertical direction. Both guide rods (45) can be connected to the support frame (44) and maintain a fixed relative position. The slider (22) can be slidably connected to both guide rods (45).

6. The liquid level monitoring device based on sliding nano-triboelectric power generation according to claim 5, characterized in that: The guide assembly (40) further includes a second adjustment component (46), which is connected to the support frame (44) and each of the guide rods (45) and is able to adjust the relative position of each of the guide rods (45) and the support frame (44) along the first direction so that each of the guide rods (45) remains vertical.

7. The liquid level monitoring device based on sliding nano-triboelectric power generation according to claim 6, characterized in that: The second adjusting component (46) includes two second set screws (461), two connecting blocks (462), and two elastic components (463). The support frame (44) is provided with two limiting grooves (441) and two second threaded holes (464). The two connecting blocks (462) are respectively fixedly connected to one end of the two guide rods (45) away from the slider (22), and can respectively extend into the two limiting grooves (441). One end of the two elastic components (463) is respectively fixedly connected to one side of the two connecting blocks (462) in the first direction. The other ends of the two elastic components (463) are respectively fixedly connected to the inner sidewall of the two limiting grooves (441) in the first direction. The two second set screws (461) are respectively threaded to the two second threaded holes (464). One end of each second set screw (461) can pass through the corresponding second threaded hole (464) and extend into the limiting groove (441) to contact the side of the connecting block (462) away from the elastic component (463), and can squeeze the corresponding elastic component (463) to make the elastic component (463) elastically deform.

8. The liquid level monitoring device based on sliding nano-triboelectric power generation according to claim 3, characterized in that: The guide frame (41) includes a crossbeam (411), a base plate (412), and two vertically arranged columns (413). The crossbeam (411) is provided with the guide groove (42). The two ends of the crossbeam (411) are detachably connected to the upper ends of the two columns (413), and the bottom ends of the two columns (413) are detachably connected to the base plate (412). The base plate (412) is provided with a through hole (414) for the vertical movement of the floating component (10) and the sliding component (20).

Images