A self-powered portable water sterilization device

Abstract

This invention provides a self-powered portable water sterilization device, relating to the field of water treatment technology. The self-powered portable water sterilization device includes a drinking container, a manual drive module, a speed-increasing transmission module, and a triboelectric power generation module. The manual drive module, speed-increasing transmission module, and triboelectric power generation module are sequentially connected and integrated onto the drinking container. The manual drive module converts externally applied linear pressure into rotational motion. The speed-increasing transmission module converts the low-speed linear motion input from the manual drive module into high-speed rotational motion and outputs it. The triboelectric power generation module generates electricity through triboelectricity, which is used to sterilize the water in the drinking container. Compared to existing technologies, this self-powered portable water sterilization device effectively solves the problem of water sterilization in environments without power, such as outdoor areas, disaster areas, or remote areas, providing a safe, efficient, and readily available solution for immediate drinking water applications.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and more specifically, to a self-powered portable water sterilization device. Background Technology

[0002] While existing water sterilization technologies can achieve water sterilization to a certain extent, they have significant drawbacks in scenarios without external power supply and in portable applications. Specifically, existing technologies face the following core technical problems and their causes: 1. High dependence on external energy: Most sterilization methods (such as chemical disinfection, ultraviolet radiation, high temperature treatment, membrane filtration, electrochemical or electric field sterilization) are highly dependent on electricity or chemical reagents. This makes them unsuitable for environments without power, such as outdoors, disaster areas, or remote areas, limiting their application scope.

[0003] 2. Potential safety risks or secondary pollution exist: Chemical disinfection methods are prone to producing harmful byproducts, posing a potential threat to human health; electrochemical methods may introduce metal ion pollution, affecting water quality safety.

[0004] 3. Complex equipment and difficult to miniaturize and integrate: Ozone, plasma and electric field sterilization devices are usually complex in structure and large in size, which is not conducive to miniaturization and portable application.

[0005] 4. Lack of structural adaptation design for actual use scenarios: Existing technologies mostly remain at the functional verification level, lacking systematic design for actual application needs such as "handheld use", "single-person operation" and "instant drinking water", resulting in insufficient product practicality.

[0006] In summary, existing technologies cannot provide a water sterilization device that requires no external power source, has a simple structure, is portable, and is suitable for practical drinking water scenarios, so as to achieve efficient and safe instant water purification. Summary of the Invention

[0007] The purpose of this invention is to provide a self-powered portable water sterilization device, which has the advantages of achieving portable water sterilization without external power supply, being easy to operate, and being safe and reliable.

[0008] This invention provides a self-powered portable water sterilization device, comprising: a drinking water container, a manual drive module, a speed-increasing transmission module, and a triboelectric power generation module; The manual drive module, the speed-increasing transmission module, and the triboelectric power generation module are sequentially connected and integrated on the drinking water container. The manual drive module is used to convert externally applied linear pressing force into rotational motion; The speed-increasing transmission module is used to convert the low-speed linear motion input by the manual drive module into high-speed rotary motion and output it. The triboelectric power generation module is used to generate electricity through triboelectricity driven by the high-speed rotational motion, and the generated electricity is used to sterilize the water in the drinking water container.

[0009] Optionally, the manual drive module includes a movable housing, a fixed housing, a helical drive shaft, and a reset elastic element. The reset elastic element is disposed between the movable housing and the fixed housing. The movable housing is used to perform reciprocating linear motion relative to the fixed housing. One end of the helical drive shaft is connected to the movable housing, and the other end passes through the fixed housing and is connected to the speed-increasing transmission module.

[0010] Optionally, the fixed housing is a cylindrical structure with openings at both ends. The cylindrical structure is provided with a partition, which divides the cylindrical structure into an upper cavity and a lower cavity. The movable housing is located in the upper cavity, and the speed-increasing transmission module is located in the lower cavity.

[0011] Optionally, the movable housing has a first groove at one end facing the fixed housing, a fixed sleeve rod is provided at the center of the first groove, the end of the spiral drive shaft away from the speed-increasing drive module is threaded to the fixed sleeve rod, the reset elastic element is sleeved on the fixed sleeve rod, one end of the reset elastic element abuts against the bottom wall of the groove, and the other end abuts against the partition.

[0012] Optionally, the speed-increasing transmission module includes a ball bearing, which includes a cooperating inner ring and an outer ring. The outer ring is connected to the inner wall of the lower cavity, and the inner ring is connected to the helical transmission shaft.

[0013] Optionally, a ratchet is fitted onto the helical drive shaft, and an internal gear that engages with the ratchet is located at the center of the inner ring of the bearing; the ratchet engages with the internal gear to restrict the rotation of the inner ring of the bearing when the helical drive shaft is reset upwards.

[0014] Optionally, the triboelectric power generation module includes a disc-type rotating triboelectric nanogenerator, which includes a first metal electrode disc and a second metal electrode disc. The first metal electrode disc is connected to the inner ring of the bearing via a connecting post, and the second metal electrode disc is fixedly disposed at the open end of the drinking container. The first metal electrode disc and the second metal electrode disc are in close contact with each other and are both located inside the drinking container.

[0015] Optionally, the drinking container has a triboelectric power generation encapsulation bottom cover at its open end. The end of the triboelectric power generation encapsulation bottom cover opposite to the bottom of the drinking container has a second groove. The second metal electrode disk is fixedly disposed in the second groove. The triboelectric power generation encapsulation bottom cover has a water flow channel. Water in the drinking container is used to flow into the second groove through the water flow channel and immerse the first metal electrode disk and the second metal electrode disk.

[0016] Optionally, the end face of the first metal electrode disk facing the second metal electrode disk is provided with a first triboelectric nano-power generation coating; the end face of the second metal electrode disk facing the first metal electrode disk is provided with a second triboelectric nano-power generation coating.

[0017] Optionally, the drinking container is made of metal and has an insulating outer shell.

[0018] The present invention provides a self-powered portable water sterilization device, which, compared with the prior art, has, but is not limited to, the following beneficial effects: The self-powered portable water sterilization device of this invention converts pressure into rotational motion through a manual drive module, increases the rotational speed through a speed-increasing transmission module, and generates electricity through a triboelectric power generation module, thus achieving self-powered sterilization without an external power source. The device is integrated into a drinking water container, featuring a compact structure and easy portability. It effectively solves the problem of water sterilization in environments without power, such as outdoors, disaster areas, or remote locations, providing a safe, efficient, and readily available solution for on-demand drinking water scenarios. Attached Figure Description

[0019] Figure 1 An explosion of the self-powered portable water sterilization device according to an embodiment of the present invention. Figure 1 ; Figure 2 An explosion of the self-powered portable water sterilization device according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a cross-sectional view of a self-powered portable water sterilization device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the assembly of the ball bearing and the internal gear according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the ratchet structure according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Drinking water container; 2. Manual drive module; 21. Movable housing; 211. Fixed sleeve rod; 22. Fixed housing; 221. Partition plate; 23. Screw drive shaft; 24. Reset elastic element; 3. Ball bearing; 31. Inner ring of bearing; 32. Outer ring of bearing; 4. Disc-type rotary triboelectric nanogenerator; 41. First metal electrode disc; 42. Second metal electrode disc; 5. Ratchet; 6. Internal gear; 7. Triboelectric power generation encapsulation bottom cover; 71. Water flow channel; 8. Connecting post. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] In the description of this invention, the orientations or positional relationships indicated by terms such as "up," "down," "left," "right," "top," "bottom," "front," "back," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this invention. They are not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0025] Furthermore, in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, with the positive direction of the Z-axis indicating up and the negative direction of the Z-axis indicating down.

[0026] It should also be noted that the aforementioned Z-axis designation is only for the purpose of facilitating and simplifying the description of the present invention, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0027] like Figures 1 to 3 As shown, the self-powered portable water sterilization device of this invention includes: a drinking water container 1, a manual drive module 2, a speed-increasing transmission module, and a triboelectric power generation module. The manual drive module 2, the speed-increasing transmission module and the triboelectric power generation module are sequentially connected and integrated on the drinking water container 1. The manual drive module 2 is used to convert the externally applied linear pressing force into rotational motion; The speed-increasing transmission module is used to convert the low-speed linear motion input by the manual drive module 2 into high-speed rotary motion and output it. The triboelectric power generation module is used to generate electricity through triboelectricity driven by the high-speed rotational motion, and the generated electricity is used to sterilize the water in the drinking water container 1.

[0028] In this embodiment, in conjunction with the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the drinking water container 1 serves to hold the water to be sterilized, providing an operating platform and integrated space for the entire device. The manual drive module 2 converts externally applied linear pressing force into mechanical rotational motion. For example, pressing causes the internal mechanism of the speed-increasing transmission module to generate a rotational output. The speed-increasing transmission module converts the low-speed linear motion output by the manual drive module 2 into high-speed rotational motion. The triboelectric power generation module generates electrical energy through the principle of triboelectric charging, driven by the high-speed rotational motion output by the speed-increasing transmission module. This module typically contains materials that rub against each other, generating charge separation during relative motion, thus forming an electric current. The water sterilization treatment utilizes the electrical energy generated by the triboelectric power generation module to disinfect and purify the water in the drinking water container 1, removing or killing microorganisms in the water to ensure the safety of drinking water.

[0029] The self-powered portable water sterilization device of the present invention converts pressing pressure into rotational motion through a manual drive module 2, increases the rotational speed through a speed-increasing transmission module, and then generates electrical energy through a triboelectric power generation module, achieving self-powered sterilization without the need for an external power source. The device is integrated entirely onto a drinking water container 1, featuring a compact structure and easy portability. It effectively solves the problem of water sterilization in environments without power, such as outdoors, disaster areas, or remote regions, providing a safe, efficient, and readily available solution for on-demand drinking water scenarios.

[0030] Optionally, the manual drive module 2 includes a movable housing 21, a fixed housing 22, a helical drive shaft 23, and a reset elastic element 24. The reset elastic element 24 is disposed between the movable housing 21 and the fixed housing 22. The movable housing 21 is used to perform reciprocating linear motion relative to the fixed housing 22. One end of the helical drive shaft 23 is connected to the movable housing 21, and the other end passes through the fixed housing 22 and is connected to the speed-increasing drive module.

[0031] In this embodiment, in conjunction with the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the manual drive module 2 is the core mechanism for converting external linear pressing force into internal rotary motion. Its design goal is to provide an efficient, reliable, and easy-to-operate energy input method. Besides the screw drive mechanism used in this embodiment, this module can also be implemented in other embodiments using various mechanical structures such as rack and pinion mechanisms, cam mechanisms, or linkage mechanisms, as long as it can convert linear reciprocating motion into rotary motion.

[0032] The movable housing 21 serves as the input end of the manual drive module 2, primarily used to receive and transmit externally applied linear pressing force. Its structure is typically designed as a component capable of linear reciprocating motion in a specific direction; for example, it can be a cylindrical structure with guide grooves, or a block structure directly connected to external pressing components (such as buttons or handles). Its material can be high-strength, wear-resistant engineering plastics or metals to ensure long-term reliability.

[0033] The fixed housing 22 provides stable guidance and support for the linear reciprocating motion of the movable housing 21 and serves as the overall frame of the manual drive module 2. It is typically fixedly connected to the drinking container 1 or other main structure to ensure the integration and stability of the manual drive module 2. Its internal structure can be designed according to the requirements of the transmission mechanism, such as by setting guide surfaces and mounting bases.

[0034] The helical drive shaft 23 is a key component for converting linear motion into rotary motion, and its overall structure is helical. When the movable housing 21 moves linearly under external pressure, the helical structure of the helical drive shaft 23 converts this linear motion into the rotary motion of the speed-increasing transmission module. The movement of the helical drive shaft 23 is similar to the principle of an existing rotary mop.

[0035] The main function of the reset elastic element 24 is to provide a restoring force after the external pressure is released, allowing the movable housing 21 and the screw drive shaft 23 to automatically return to their initial positions, preparing for the next operation. Common reset elastic elements 24 include compression springs, tension springs, or torsion springs. Their placement and preload need to be precisely designed to ensure the smoothness and reliability of the reset process, while avoiding excessive resistance to the operating feel. Specifically, the reset elastic element 24 is positioned between the movable housing 21 and the fixed housing 22. The movable housing 21 is used for reciprocating linear motion relative to the fixed housing 22. One end of the screw drive shaft 23 is connected to the movable housing 21, and the other end passes through the fixed housing 22 and is connected to the speed-increasing transmission module.

[0036] Through the above technical solution, the manual drive module 2 is specifically designed to include a movable housing 21, a fixed housing 22, a helical drive shaft 23, and a reset elastic element 24. When external linear pressing force is applied to the movable housing 21, the movable housing 21 reciprocates linearly relative to the fixed housing 22. This linear motion is efficiently converted into rotational motion through the helical structure of the helical drive shaft 23 connected to the movable housing 21. The reset elastic element 24 ensures that after the pressing force is released, the movable housing 21 and the helical drive shaft 23 can automatically and smoothly return to their initial state, preparing for the next pressing operation. This design not only provides a compact and highly efficient linear pressing force to rotational motion conversion mechanism, effectively solving the technical problem of achieving stable energy input in portable devices, but also significantly improves the user experience in terms of ease of operation, ensuring the reliability and practicality of the self-powered portable water sterilization device.

[0037] Optionally, the fixed housing 22 is a cylindrical structure with openings at both ends. The cylindrical structure is provided with a partition 221, which divides the cylindrical structure into an upper cavity and a lower cavity. The movable housing 21 is located in the upper cavity, and the speed-increasing transmission module is located in the lower cavity.

[0038] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 3As shown, the fixed housing 22 is designed as a cylindrical structure with openings at both ends. As the core supporting component of the manual drive module 2, it provides a robust external frame and good structural stability. This cylindrical structure facilitates the installation and integration of internal components, while simplifying the manufacturing and assembly process. Inside the cylindrical structure of the fixed housing 22, a partition 221 is provided. This partition 221 serves as a physical divider and support, clearly dividing the internal space of the cylinder into an upper cavity and a lower cavity. This division helps to achieve independent arrangement of different functional components and reduces mutual interference. The movable housing 21 is located in the upper cavity. The movable housing 21 is the component in the manual drive module 2 that directly interacts with the user. Its location in the upper cavity allows the user to easily apply pressure to it and ensures smooth reciprocating linear motion during pressing. The speed-increasing transmission module is located in the lower cavity. The speed-increasing transmission module is responsible for converting the low-speed rotational motion output by the manual drive module 2 into high-speed rotational motion. By arranging it in the lower cavity, it can form a tight transmission chain with the output end of the manual drive module 2 and the subsequent triboelectric power generation module, optimize the transmission path, and provide a relatively protected working environment for the speed-increasing transmission module.

[0039] Optionally, the movable housing 21 has a first groove at one end facing the fixed housing 22, and a fixed sleeve rod 211 is provided at the center of the first groove. The end of the spiral drive shaft 23 away from the speed-increasing drive module is threadedly connected to the fixed sleeve rod 211. The reset elastic member 24 is sleeved on the fixed sleeve rod 211, and one end of the reset elastic member 24 abuts against the bottom wall of the groove, and the other end abuts against the partition plate 221.

[0040] In this embodiment, in conjunction with the appendix Figure 1 As shown, the first groove is a specially designed recessed space on the movable housing 21, which serves to provide a protected and precisely positioned mounting area for internal components. By providing this groove, related components can be effectively integrated inside the movable housing 21, reducing external interference and providing a structural foundation for subsequent connections and support. The fixing sleeve 211 is located at the geometric center of the first groove, serving as a core support component. Its main function is to provide a stable axial guide and support point for the helical drive shaft 23 and the reset elastic element 24. The upper end of the helical drive shaft 23 (attached) Figure 1The fixed sleeve 211 is tightly connected to the Z-axis direction via threads. The reset elastic element 24, typically a helical compression spring, is precisely fitted onto the outside of the fixed sleeve 211. The fixed sleeve 211 acts as a guide rod for the elastic element, effectively preventing bending, skewing, or instability during compression and rebound, thus ensuring that the elastic element always applies force axially and guaranteeing the smooth reset of the movable housing 21. The two ends of the reset elastic element 24 are in close contact with the bottom wall of the first groove and the partition 221 inside the fixed housing 22, respectively. This precise positioning and support method allows the reset elastic element 24 to effectively store energy when the movable housing 21 is pressed, and after the pressing force is released, it uses its own elastic potential energy to stably and quickly push the movable housing 21 back to its initial position. The bottom wall of the groove and the partition 221 serve as stable force-bearing surfaces, ensuring the effective transmission of the force applied by the elastic element.

[0041] Optionally, the speed-increasing transmission module includes a ball bearing 3, which includes a cooperating inner ring 31 and an outer ring 32. The outer ring 32 is connected to the inner wall of the lower cavity, and the inner ring 31 is connected to the helical transmission shaft 23.

[0042] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 As shown, the speed-up transmission module is a key component for energy conversion. Its core function is to increase the relatively low linear speed output by the manual drive module 2 to a high speed sufficient to effectively drive the triboelectric power generation module for power generation. The ball bearing 3, a common type of rolling bearing, mainly consists of an inner ring, an outer ring, rolling elements (balls), and a cage. Its function is to support rotating components, reduce frictional resistance, and withstand radial and axial loads. Through the rolling friction of the balls, energy loss between moving parts can be significantly reduced, improving transmission efficiency and operational smoothness. The inner ring 31 is the internal annular component of the ball bearing 3, and it cooperates with the helical drive shaft 23. During linear reciprocating motion, the helical drive shaft 23 drives the inner ring 31 to rotate. The outer ring 32 is the external annular component of the ball bearing 3, usually fixed to the bearing housing or casing, serving as external support for rotation. The two rotate relative to each other through the balls and the cage. Connecting the outer ring 32 to the lower cavity wall of the fixed housing 22 means that the outer ring 32 is fixed. This fixing method provides stable external support for the rotation of the inner ring 31 of the bearing, ensuring the structural stability of the entire speed-up transmission module and helping to effectively transmit the rotational torque.

[0043] Optionally, a ratchet 5 is fitted on the helical drive shaft 23, and an internal gear 6 that cooperates with the ratchet 5 is provided at the center of the inner ring 31 of the bearing; the ratchet 5 cooperates with the internal gear 6 to restrict the rotation of the inner ring 31 of the bearing when the helical drive shaft 23 is reset upward.

[0044] In this embodiment, in conjunction with the appendix Figure 1 Appendix Figure 4 and attached Figure 5 As shown, a ratchet 5 is fitted onto the helical drive shaft 23. When the helical drive shaft 23 is fixed in place, and the ratchet 5 is released, it falls while simultaneously rotating in the same direction as the helical drive shaft 23. This restricts the downward displacement of the ratchet 5 while preserving its freedom of planar rotation. Pressing down on the helical drive shaft 23 causes the ratchet 5 to rotate. It is important to note that the internal structure of the ratchet 5 is not a perfectly fitted track to the shape of the helical drive shaft 23. This design minimizes the contact area with the helical drive shaft 23 while ensuring smooth rotation. An internal gear 6, which mates with the ratchet 5, is located at the center of the inner ring 31 of the bearing. Pressing down on the helical drive shaft 23 causes the ratchet 5 to drive the internal gear 6 to rotate together. The upper end of the internal gear 6 can protrude from the inner ring 31 of the bearing, and the ratchet 5 can be enclosed within it (not shown in the figure). With this structural design, the rotation of the ratchet 5 will not affect the internal gear 6 below during the process of lifting the helical drive shaft 23. This is the principle that the helical drive shaft 23 drives the inner ring 31 of the bearing to rotate when it is pressed down, but does not drive the inner ring 31 of the bearing to rotate when it is lifted up.

[0045] Optionally, the triboelectric power generation module includes a disc-type rotating triboelectric nanogenerator 4, which includes a first metal electrode disc 41 and a second metal electrode disc 42. The first metal electrode disc 41 is connected to the inner ring 31 of the bearing via a connecting post 8, and the second metal electrode disc 42 is fixedly disposed at the open end of the drinking container 1. The first metal electrode disc 41 and the second metal electrode disc 42 are in close contact with each other and are both located inside the drinking container 1.

[0046] In this embodiment, in conjunction with the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the disc-shaped rotating triboelectric nanogenerator 4 is a device that converts mechanical energy into electrical energy using the principles of triboelectric charging and electrostatic induction. Its disc-shaped structure allows it to efficiently utilize rotational motion and is easily integrated into systems with rotating components. Compared to other forms of triboelectric nanogenerators, the disc-shaped structure offers advantages in achieving high rotational speeds and continuous frictional contact within a compact space, thus enabling a relatively stable electrical output.

[0047] The first metal electrode disk 41 and the second metal electrode disk 42 are the core components of the disk-type rotating triboelectric nanogenerator 4, serving as carriers for charge collection and transport. Metal materials possess excellent electrical conductivity, enabling them to effectively collect the charge generated by friction. The disk shape design allows for large-area triboelectric contact, thereby improving power generation efficiency. These two electrode disks are typically covered with a triboelectric layer material, generating a potential difference through their relative motion and triboelectric effect.

[0048] The connecting post 8 serves as a mechanical connector, ensuring a reliable transmission connection between the first metal electrode disk 41 and the bearing inner ring 31 of the speed-increasing transmission module. The bearing inner ring 31 rotates at high speed under the action of the speed-increasing transmission module, and this rotational motion is precisely transmitted to the first metal electrode disk 41 via the connecting post 8, making it a rotating component in the triboelectric nanogenerator 4.

[0049] The second metal electrode disk 42 serves as a fixing component of the triboelectric nanogenerator 4. It is fixedly positioned at the open end of the drinking container 1, ensuring that it remains relatively stationary when the first metal electrode disk 41 rotates. This fixing method is beneficial to the overall integration and stability of the triboelectric nanogenerator 4. Positioning it at the open end also facilitates subsequent assembly, maintenance, and contact with water.

[0050] The close contact between the first metal electrode disk 41 and the second metal electrode disk 42 is fundamental to the normal operation of the triboelectric nanogenerator 4, ensuring effective contact and relative movement between the friction layers, thereby generating a triboelectric effect. Both are located inside the drinking water container 1, meaning the triboelectric power generation process takes place directly in the aquatic environment. This not only contributes to the compactness of the device but also provides a direct power source and operating space for subsequent water sterilization treatment. This internally integrated design tightly combines power generation and sterilization functions, reducing energy transmission losses and the complexity of external connections.

[0051] Optionally, the open end of the drinking container 1 is provided with a triboelectric encapsulation bottom cover 7. The end of the triboelectric encapsulation bottom cover 7 opposite to the bottom of the drinking container 1 is provided with a second groove. The second metal electrode disk 42 is fixedly disposed in the second groove. The triboelectric encapsulation bottom cover 7 is provided with a water flow channel 71. Water in the drinking container 1 is used to flow into the second groove through the water flow channel 71 and immerse the first metal electrode disk 41 and the second metal electrode disk 42.

[0052] In this embodiment, in conjunction with the appendix Figure 1 Appendix Figure 2 and attached Figure 3As shown, the triboelectric power generation encapsulation bottom cover 7 is designed to be installed at the open end of the drinking water container 1. Its main function is to provide an integrated and protective structure for the triboelectric power generation module. The triboelectric power generation encapsulation bottom cover 7 can be connected to the fixed housing 22. The triboelectric power generation encapsulation bottom cover 7 can be made of a water-resistant, corrosion-resistant material with a certain mechanical strength, such as engineering plastics or composite materials. By setting it at the open end of the drinking water container 1, effective isolation and contact between the triboelectric power generation module and the water can be achieved, while facilitating the assembly and maintenance of the device. The second groove is a specific structure inside the triboelectric power generation encapsulation bottom cover 7, and its position is set at the end of the triboelectric power generation encapsulation bottom cover 7 away from the bottom of the drinking water container 1. The main function of this groove is to provide a precise installation space and fixed support for the second metal electrode disk 42. By fixing the second metal electrode disk 42 in this groove, its positional stability during device operation can be ensured, and it can maintain a precise relative positional relationship with other components (such as the first metal electrode disk 41), thereby ensuring the normal operation of triboelectric power generation. The second metal electrode disk 42 is fixedly disposed within the second groove, ensuring its stability within the triboelectric power generation package bottom cover 7. Through mechanical fixing (e.g., snap-fit, adhesive, threaded connection), the second metal electrode disk 42 can resist external vibrations and water flow impacts, maintaining its geometric accuracy in operation. This fixing method is crucial for maintaining effective frictional contact between the first metal electrode disk 41 and the second metal electrode disk 42, especially in water immersion environments. The water flow channel 71 is a specially designed structure on the triboelectric power generation package bottom cover 7, its function being to guide water from the drinking container 1 into the second groove. This channel can be designed as a hole, slit, or guide groove, its size and shape ensuring smooth water flow into the second groove and full immersion of the key components of the triboelectric power generation module. Through the water flow channel 71, effective connection between the water and the triboelectric power generation module is achieved, providing the necessary conditions for subsequent liquid-solid triboelectric power generation. The water in the drinking container 1 flows into the second groove through the water flow channel 71 and submerges the first metal electrode disk 41 and the second metal electrode disk 42. The electrical energy generated by the friction between the first metal electrode disk 41 and the second metal electrode disk 42 can disinfect and purify the water in the drinking container 1, removing or killing microorganisms in the water.

[0053] Optionally, the end face of the first metal electrode disk 41 facing the second metal electrode disk 42 is provided with a first triboelectric nano-power generation coating; the end face of the second metal electrode disk 42 facing the first metal electrode disk 41 is provided with a second triboelectric nano-power generation coating.

[0054] In this embodiment, in conjunction with the appendix Figure 3As shown, the first triboelectric nano-power generation coating can be made of a metallic material, such as copper. The second triboelectric nano-power generation coating can be made of polytetrafluoroethylene (PTFE) or PLA (polylactic acid) bio-based material. Taking the example of using a copper film for the first triboelectric nano-power generation coating and a polytetrafluoroethylene (PTFE) film for the second triboelectric nano-power generation coating, when the copper film and the PTFE film come into contact, electrons will transfer from the copper to the PTFE, thereby generating equal amounts of positive and negative triboelectric charges on the copper film and the PTFE film, respectively.

[0055] Optionally, the drinking container 1 is made of metal material, and an insulating outer shell is provided on the outside of the drinking container 1.

[0056] In this embodiment, the drinking container 1 is made of metal. Metal materials generally refer to materials with good electrical and thermal conductivity, strength, and corrosion resistance, such as stainless steel and titanium alloys. As the main body of the self-powered portable water sterilization device, the metal drinking container 1 provides excellent structural strength and durability, ensuring the reliability of the device during portable use.

[0057] Meanwhile, an insulating outer shell is fitted around the outside of the drinking container 1. The insulating outer shell is a protective layer made of electrically insulating material that wraps around the outside of the drinking container 1. The main function of the insulating outer shell is to provide electrical insulation and prevent the electrical energy generated by the triboelectric module from leaking through the metal drinking container 1, thereby protecting the user from the risk of electric shock.

[0058] In addition, this self-powered portable water sterilization device may also include a boost rectifier module, which is electrically connected to the triboelectric generator module to convert its output AC power into high-voltage DC power, thereby achieving better and more effective sterilization.

[0059] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0060] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A self-powered portable water sterilization device, characterized in that, include: Drinking water container (1), manual drive module (2), speed-increasing transmission module and triboelectric power generation module; The manual drive module (2), the speed-increasing transmission module and the triboelectric power generation module are sequentially connected and integrated on the drinking water container (1); The manual drive module (2) is used to convert the externally applied linear pressing force into rotational motion; The speed-increasing transmission module is used to convert the low-speed linear motion input by the manual drive module (2) into high-speed rotary motion and output it. The triboelectric power generation module is used to generate electricity under the drive of the high-speed rotational motion, and the generated electricity is used to sterilize the water in the drinking water container (1).

2. The self-powered portable water sterilization device according to claim 1, characterized in that, The manual drive module (2) includes a movable housing (21), a fixed housing (22), a screw drive shaft (23), and a reset elastic element (24). The reset elastic element (24) is disposed between the movable housing (21) and the fixed housing (22). The movable housing (21) is used to perform reciprocating linear motion relative to the fixed housing (22). One end of the screw drive shaft (23) is connected to the movable housing (21), and the other end passes through the fixed housing (22) and is connected to the speed-increasing drive module.

3. The self-powered portable water sterilization device according to claim 2, characterized in that, The fixed housing (22) is a cylindrical structure with openings at both ends. A partition (221) is provided inside the cylindrical structure, which divides the cylindrical structure into an upper cavity and a lower cavity. The movable housing (21) is located in the upper cavity, and the speed-increasing transmission module is located in the lower cavity.

4. The self-powered portable water sterilization device according to claim 3, characterized in that, The movable housing (21) has a first groove at one end facing the fixed housing (22). A fixed sleeve rod (211) is provided at the center of the first groove. The end of the spiral drive shaft (23) away from the speed-increasing drive module is threadedly connected to the fixed sleeve rod (211). The reset elastic element (24) is sleeved on the fixed sleeve rod (211). One end of the reset elastic element (24) abuts against the bottom wall of the groove, and the other end abuts against the partition plate (221).

5. The self-powered portable water sterilization device according to claim 3, characterized in that, The speed-increasing transmission module includes a ball bearing (3), which includes a bearing inner ring (31) and a bearing outer ring (32) that cooperate with each other. The bearing outer ring (32) is connected to the inner wall of the lower cavity, and the bearing inner ring (31) is connected to the helical transmission shaft (23) for transmission.

6. The self-powered portable water sterilization device according to claim 5, characterized in that, A ratchet (5) is fitted on the helical drive shaft (23), and an internal gear (6) that cooperates with the ratchet (5) is provided at the center of the inner ring (31) of the bearing. The ratchet (5) cooperates with the internal gear (6) to restrict the rotation of the inner ring (31) of the bearing when the helical drive shaft (23) is reset upward.

7. The self-powered portable water sterilization device according to claim 5, characterized in that, The triboelectric power generation module includes a disc-type rotating triboelectric nanogenerator (4), which includes a first metal electrode disc (41) and a second metal electrode disc (42). The first metal electrode disc (41) is connected to the inner ring (31) of the bearing via a connecting post (8), and the second metal electrode disc (42) is fixedly disposed at the open end of the drinking container (1). The first metal electrode disc (41) and the second metal electrode disc (42) are attached to each other and are both located inside the drinking container (1).

8. The self-powered portable water sterilization device according to claim 7, characterized in that, The drinking container (1) has a triboelectric encapsulation bottom cover (7) at its open end. The end of the triboelectric encapsulation bottom cover (7) away from the bottom of the drinking container (1) has a second groove. The second metal electrode disk (42) is fixedly installed in the second groove. The triboelectric encapsulation bottom cover (7) has a water flow channel (71). The water in the drinking container (1) is used to flow into the second groove through the water flow channel (71) and immerse the first metal electrode disk (41) and the second metal electrode disk (42).

9. The self-powered portable water sterilization device according to claim 7, characterized in that, The first metal electrode disk (41) has a first triboelectric nano-power generation coating on the end face facing the second metal electrode disk (42); the second metal electrode disk (42) has a second triboelectric nano-power generation coating on the end face facing the first metal electrode disk (41).

10. The self-powered portable water sterilization device according to claim 1, characterized in that, The drinking water container (1) is made of metal material and is covered with an insulating shell.

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