Nested decompression ring and material thickness determination method thereof

Abstract

The present application relates to the technical field of decompression products, and in particular to a nested decompression ring and a method for determining the thickness of the material thereof. The method comprises the following steps: determining the surface material of the fixed inner ring or the movable outer ring made of non-self-lubricating material; determining the friction coefficient between the self-lubricating material and the surface material; determining the dialing pressure, the dialing frequency and the expected service life according to historical user data; determining the wear rate according to the friction coefficient and the dialing pressure; determining the number of rotations according to the dialing frequency and the expected service life, and then determining the calculated thickness according to the number of rotations and the wear rate; obtaining the expected thickness, and determining the reference thickness according to the expected thickness and the calculated thickness; adjusting the reference thickness according to the gap between the self-lubricating material and the fixed inner ring or the movable outer ring and the user experience threshold, and determining the final thickness. The present application can reduce the size of the decompression ring while ensuring its service life and improving user experience.

Description

[0001] Divisional application This application is a divisional application of Chinese invention patent application filed on October 9, 2025, entitled "An Invention Title: A Decompression Ring and a Method and System for Determining the Material Thickness Thereof" [Application No.: 202511429637.7]. Technical Field

[0002] This invention relates to the field of decompression product technology, specifically to a nested decompression ring and a method for determining its material thickness. Background Technology

[0003] With the accelerating pace of modern life and increasing work pressure, people's need for psychological adjustment and emotional release in daily life is growing. To alleviate negative emotions such as anxiety and tension, various stress-relief products have emerged and are gradually becoming common auxiliary tools in people's daily lives. These stress-relief products help users shift their attention, relax their nerves, and improve concentration by providing operable, tactile, or repetitive physical interaction methods, and are widely used in office, study, and other scenarios.

[0004] Currently, common stress-relief products on the market mainly include fidget spinners and squishy toys (silicone foam toys). While these products can help users relieve stress to some extent, they still have significant drawbacks. For example, fidget spinners are relatively large and inconvenient to carry around; squishy toys, although soft to the touch, lack tactile feedback, resulting in limited stress-relief effects, and some materials suffer from aging and shedding. Furthermore, these stress-relief products lack wearable functionality, preventing "anytime, anywhere" use and limiting their flexibility in application scenarios.

[0005] To address these issues, ring-type decompression products have emerged on the market. These products offer advantages such as small size, portability, discreetness, and ease of use, making them particularly suitable for quiet and focused environments like meetings and studies. Existing ring-type decompression products typically employ a double-layer structure where an outer ring fits around the circumference of an inner ring. Friction-generating components exist between the inner and outer rings, allowing users to relieve pressure by rubbing the outer ring. However, this method only achieves relative displacement between the outer and inner rings, lacking the tactile feedback of friction, resulting in poor decompression effectiveness and a negative user experience.

[0006] Based on this, the prior art (utility model patent with authorization announcement number CN220513422U) discloses a decompression ring, including an inner ring assembly, a rotating assembly, a magnetic adjustment assembly, and a magnetic fixing component. The magnetic fixing component is installed inside the inner ring assembly, the magnetic adjustment assembly is installed inside the rotating assembly, and the rotating assembly is rotatably connected to the inner ring assembly. The rotating assembly has multiple mounting parts, and the magnetic adjustment assembly includes multiple magnetic units. At least one mounting part is equipped with a magnetic unit, which achieves different resistances when the rotating assembly rotates around the inner ring assembly. This solves the technical problem that the above-mentioned decompression ring products can only achieve relative displacement between the outer and inner rings and lack the jerky feeling of friction between them, thus improving the decompression effect.

[0007] However, the aforementioned existing technologies still have the following problems in practical use: 1. Both the inner ring assembly for mounting the magnetic fastener and the rotating assembly for mounting the magnetic adjustment assembly consist of multiple parts, making their structure relatively complex. They are prone to damage during use and have high maintenance costs.

[0008] 2. The inner ring component and the rotating component are connected by bearings. On the one hand, the existing bearings are large in size, resulting in a large overall size of the decompression ring, which is inconvenient for users to wear and use, affecting the user experience. On the other hand, small-sized, high-quality bearings are expensive, resulting in a high cost for the decompression ring, which cannot meet the low-cost requirements of decompression ring application scenarios and is not conducive to improving market competitiveness. Summary of the Invention

[0009] The purpose of this invention is to provide a decompression ring and a method and system for determining its material thickness, which partially solves or alleviates the above-mentioned deficiencies in the prior art, simplifies the structure of the decompression ring, reduces its size, ensures the service life of the decompression ring, and improves the user experience.

[0010] To solve the aforementioned technical problems, the present invention specifically adopts the following technical solution: A first aspect of the present invention provides a method for determining the material thickness of a decompression ring, the decompression ring comprising a movable outer ring and a fixed inner ring, the movable outer ring being nested on the outer peripheral wall of the fixed inner ring, and the inner peripheral wall of the movable outer ring and the outer peripheral wall of the fixed inner ring being in clearance fit, allowing the movable outer ring to rotate around the fixed inner ring; a movable magnetic component is embedded in the inner peripheral wall of the movable outer ring, and a fixed magnetic component is embedded in the outer peripheral wall of the fixed inner ring; during the rotation of the movable outer ring around the fixed inner ring, the movable magnetic component and the fixed magnetic component switch between aligned and misaligned states; a self-lubricating material is provided on the contact surface of the movable outer ring and the fixed inner ring, and the movable magnetic component and / or the fixed magnetic component is embedded in the self-lubricating material; the method for determining the thickness of the self-lubricating material includes the following steps: S1. Determine the coefficient of friction: First, determine the surface material of the fixed inner ring or the movable outer ring made of non-self-lubricating material, and then determine the coefficient of friction between the self-lubricating material and the surface material. S2. Data Processing: Obtain historical user data and determine the toggle pressure, toggle frequency, and expected service life based on the historical user data; S3. Determine the wear rate: Determine the wear rate based on the coefficient of friction and the actuation pressure; S4. Determine the calculated thickness: Determine the number of rotations based on the actuation frequency and expected service life, and then determine the calculated thickness based on the number of rotations and wear rate.

[0011] Preferably, as an improvement, the method further includes the following steps: S5. Determine the reference thickness: Obtain the expected thickness, compare the expected thickness with the calculated thickness, and select the smaller value or the weighted average value under the preset weight as the reference thickness.

[0012] Preferably, as an improvement, step S2 specifically includes the following steps: S201. Obtain objective group characteristics and / or first subjective group characteristics of users from historical user data, wherein the objective group characteristics include at least one of the following: occupational category, health status; and the first subjective group characteristics include at least one of the following: degree of tug-of-war preference, anxiety level. S202. Cluster users to form at least one user group by using objective group characteristics and / or first subjective group characteristics as clustering conditions; S203. Calculate the toggle pressure, toggle frequency, and expected service life for each user group.

[0013] Preferably, as an improvement, in step S202, the clustering conditions further include a second subjective group characteristic, which includes at least one of the following: toggle pressure, toggle frequency, and expected service life.

[0014] Preferably, as an improvement, in step S203, the calculation method for the actuation pressure, actuation frequency, and expected service life is: using at least one of the mode, median, and mean.

[0015] Preferably, as an improvement, the method further includes the following steps: S6. Determine the final thickness: Determine the final thickness based on the gap between the self-lubricating material and the fixed inner ring or the movable outer ring, and the user experience threshold.

[0016] Preferably, as an improvement, step S6 specifically includes the following steps: S601. Determine the non-linear relationship between the gap between the self-lubricating material and the fixed inner ring or the movable outer ring and the user experience. S602, Obtain the user experience threshold; S603. Substitute the user experience threshold into the nonlinear correspondence to determine the reference gap between the self-lubricating material and the fixed inner ring or the movable outer ring. S604. Adjust the reference thickness according to the reference gap to obtain the final thickness; The adjustment includes: if the wear gap generated when the reference thickness wears down to a preset lower limit is greater than the reference gap, then the reference thickness is appropriately reduced; otherwise, the reference thickness is maintained or increased to obtain the final thickness.

[0017] A second aspect of the present invention is to provide a system for determining the material thickness of a decompression ring, comprising: The friction coefficient determination module is used to determine the surface material of a fixed inner ring or a movable outer ring made of a non-self-lubricating material, and to determine the friction coefficient between the self-lubricating material and the surface material. The data processing module is used to acquire historical user data and determine the toggle pressure, toggle frequency, expected service life and expected thickness based on the historical user data. The wear rate determination module is used to determine the wear rate based on the friction coefficient and the turning pressure. The thickness calculation module is used to determine the number of rotations based on the toggle frequency and expected service life, and then determine the calculated thickness based on the number of rotations and wear rate. The reference thickness determination module is used to obtain the expected thickness, compare the expected thickness with the calculated thickness, and select the smaller value or the weighted average value under the preset weight as the reference thickness. The final thickness determination module is used to determine the final thickness based on the gap between the self-lubricating material and the fixed inner ring or the movable outer ring, and the user experience threshold.

[0018] A third aspect of the present invention provides a decompression ring, comprising a movable outer ring and a fixed inner ring, wherein the movable outer ring is nested on the outer peripheral wall of the fixed inner ring, and the inner peripheral wall of the movable outer ring and the outer peripheral wall of the fixed inner ring are in clearance fit, allowing the movable outer ring to rotate around the fixed inner ring; a movable magnetic element is embedded in the inner peripheral wall of the movable outer ring, and a fixed magnetic element is embedded in the outer peripheral wall of the fixed inner ring; during the rotation of the movable outer ring around the fixed inner ring, the movable magnetic element and the fixed magnetic element switch between aligned and misaligned states; a self-lubricating material is provided on the contact surface of the movable outer ring and the fixed inner ring, and the movable magnetic element and / or the fixed magnetic element is embedded in the self-lubricating material; the thickness of the self-lubricating material is determined according to the above-described method for determining the material thickness of a decompression ring.

[0019] Preferably, as an improvement, the decompression ring further includes a bottom support ring fixedly inserted into the fixed inner ring. The bottom support ring integrates multiple sensors for collecting the user's physical and physiological data. The physical data includes the flicking pressure and flicking frequency, and the physiological data includes at least one of heart rate, blood pressure, and body temperature.

[0020] Beneficial technical effects of the present invention: On the one hand, the present invention improves the structure of the decompression ring, which can achieve the following technical effects: 1. Simplified Structure, Enhanced Reliability: This invention eliminates the complex structures of existing technologies that rely on bearings and multi-component magnetic adjustment mechanisms. It adopts a simple design with a direct sliding fit between a fixed inner ring and a movable outer ring, significantly reducing the number of parts and simplifying the assembly process. This structure avoids malfunctions caused by bearing damage or loose magnetic components, greatly improving the product's structural stability and long-term reliability.

[0021] 2. Reduced manufacturing costs and enhanced market competitiveness: This invention eliminates the need for high-precision, small-sized bearings and complex magnetic adjustment components, effectively reducing raw material procurement and processing costs. Simultaneously, the simplified structure reduces assembly time and quality inspection difficulty, further compressing production costs and making the product easier to mass-produce, thus enhancing its price competitiveness in the consumer market.

[0022] 3. Enhanced stress-relieving interactive experience: This invention embeds fixed magnetic components and movable magnetic components on the fixed inner ring and movable outer ring respectively. By utilizing the attraction and repulsion between magnetic poles, a regular "stuttering" or "segmentation" is formed during rotation, simulating rhythmic operation feedback. This significantly enhances the user's operational enjoyment and psychological stress relief effect, which is superior to traditional designs that rely solely on friction or purely smooth rotation.

[0023] On the other hand, the method for determining the thickness of self-lubricating materials provided by the present invention can achieve the following technical effects: 1. Achieving a precise balance between service life and size: This invention proposes a systematic method for determining the thickness of self-lubricating materials. It comprehensively considers the coefficient of friction, user actuation pressure, frequency, and expected service life, calculating the "calculated thickness" that meets durability requirements using a wear rate model. Then, combined with the user's "expected thickness" for wearing comfort, a more optimal "baseline thickness" is determined. This method scientifically resolves the technical contradiction between miniaturization and long service life, ensuring that the product is both lightweight and portable while maintaining a long service life.

[0024] 2. Enhance the personalization level of decompression rings and realize feasible customized design for groups: The thickness determination method of this invention introduces a multi-dimensional user clustering analysis mechanism, which breaks through the limitations of the traditional "general design" mode and realizes the leap from "function-oriented" to "user demand-oriented".

[0025] Specifically, this invention categorizes users into several groups with common behavioral patterns based on their objective characteristics (such as occupation and health status) and subjective preferences (such as anxiety level and fingering preference). For example, those engaged in high-intensity mental work (such as programmers and doctors) typically have high anxiety levels and high fingering frequency; while students may prefer light resistance and high-frequency fingering. By calculating typical fingering pressure, fingering frequency, and expected lifespan for each group, the invention enables dynamic adjustment of the self-lubricating material thickness parameters, thereby achieving customized design at the group level. This significantly improves the personalized adaptability of the decompression ring and meets the individualized needs of different user groups.

[0026] Compared with the "individual-level personalization" scheme commonly found in existing technologies, this invention adopts the design concept of "replacing individuals with groups", which has the following significant advantages: avoiding interference from individual manipulation and improving the stability and accuracy of clustering results.

[0027] Current "personalization" technologies often emphasize individual modeling for each user, relying on large amounts of individual behavioral data for cluster analysis, and even requiring complex predictions using AI algorithms. However, individual states are highly volatile and easily affected by short-term emotions, environment, physical condition, and other factors, leading to unstable clustering results. For example, a user's intense manipulation of a stress-relieving ring due to emotional excitement might be misjudged as a "high-stress user," resulting in a design deviation in the thickness of the self-lubricating material.

[0028] Conversely, this invention abandons the idealized approach of "precise individual profiling" and instead adopts a group segmentation strategy based on discrete labels. It constructs user profiles using stable and interpretable macro-level characteristics such as occupation, health status, and anxiety level. These characteristics reflect the typical state of users over a longer timescale, rather than instantaneous behavior, thus possessing greater stability and representativeness. For example, classifying anxiety levels into high, medium, and low levels is more stable in reflecting the user's psychological load characteristics than directly using a single measurement's "heart rate variability," avoiding misjudgments due to accidental factors.

[0029] This invention employs hierarchical and discretized group characteristics for clustering, similar to "using rating scales instead of specific scores" to reflect learning levels. While an individual's score on a single test may deviate from their true level due to poor performance, classifying their long-term performance into A / B / C levels provides a more stable and accurate reflection of their overall ability. Similarly, this invention constructs user profiles using stable social attributes and psychological state labels, effectively filtering out transient behavioral noise and ensuring that clustering results reflect typical user patterns rather than accidental states, significantly improving the scientific rigor and reliability of personalized design.

[0030] Furthermore, compared to unsupervised clustering methods that rely solely on raw usage data (such as dialing pressure, dialing frequency, etc.), this approach uses objective features with clear semantics and subjective preferences as clustering conditions. This enables the interpretability and production feasibility of user segmentation, avoiding the problem of "over-clustering," as detailed below: (1) Enhance the explainability and business relevance of user groups: Objective characteristics such as occupational categories (e.g., programmers, teachers, medical staff) and health status (e.g., patients with anxiety disorders, patients with sleep disorders) have clear social and medical significance, while subjective characteristics such as anxiety level and tug-of-war preference directly reflect the user's psychological state and usage motivation. User groups formed based on these characteristics naturally have clear labels and profiles. Such grouping results are easy for product design, marketing, and sales teams to understand and apply, and can directly guide product function definition (e.g., configuring higher wear-resistant thickness for high-stress groups), appearance style positioning (e.g., designing more lively student models), and channel strategies (e.g., promoting to working professionals), achieving close integration between technical solutions and commercial implementation.

[0031] (2) Effectively control the number of users and avoid "fragmentation" that leads to mass production failure: If unsupervised clustering is performed based solely on continuous behavioral data (such as tactile pressure and tactile frequency), too many and too fine user groups may be formed due to subtle differences, resulting in a wide variety of material thickness specifications, increased mold costs, difficulties in inventory management, and increased production complexity. This solution introduces a limited number of categories and discrete features as clustering dimensions, which naturally limits the number and complexity of clustering results. The final number of users is moderate, which can meet the differentiated needs of the mainstream user group and has the feasibility of large-scale production. It truly achieves a balance between "personalization" and "mass production" and avoids the cost control problem caused by "over-customization".

[0032] Furthermore, existing clustering methods rely solely on objective characteristics (such as occupational category and health status) and subjective preferences (such as anxiety level and dialing preference), which constitutes an "indirect inference" of user behavior. This application introduces a second set of subjective group characteristics (such as dialing pressure, dialing frequency, and expected lifespan), effectively incorporating actual or expected user behavior data into the clustering dimension. This makes the clustering results no longer dependent on "speculation" but based on real behavioral patterns, significantly improving the scientific rigor and accuracy of user group segmentation. For example, two users with the same anxiety level, one habitually using "heavy pressure and slow dialing" while the other habitually uses "light touch and quick dialing," will be classified into different groups, thus matching them with different material thickness schemes.

[0033] Furthermore, the mean, median, and mode are different statistical measures applicable to different data distribution scenarios. In real user data, outliers or extreme behaviors (such as overuse or misoperation) often exist. Relying solely on the mean may lead to overestimation of wear rate and thickness, resulting in material waste. Using the median or mode can effectively suppress outlier interference, making the material thickness design closer to the normal usage scenarios of most users. This application, by flexibly selecting or combining these three statistical methods, can ensure that the determined "typical value of the group" more accurately represents the mainstream behavior of the group, enhance the robustness of parameter design, and avoid bias caused by a single indicator.

[0034] 3. Optimize user experience and avoid over-design or insufficient performance: This invention establishes a non-linear correspondence between the gap between the self-lubricating material and the fixed inner ring or sliding outer ring and the user experience threshold, and combines the user experience threshold to make thickness corrections. This can effectively avoid the bulkiness caused by excessively thick self-lubricating materials or the premature wear caused by excessively thin materials, ensuring that the decompression ring achieves the best balance in terms of visual, tactile and operational feel. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale. Obviously, the drawings described below are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0036] Figure 1 An exploded three-dimensional view of the decompression ring provided in an embodiment of the present invention; Figure 2 This is an axial sectional view of the decompression ring provided in an embodiment of the present invention; Figure 3This is a radial cross-sectional view of the decompression ring provided in an embodiment of the present invention; Figure 4 This is a flowchart illustrating the method for determining the material thickness of a decompression ring according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the material thickness determination system for the decompression ring provided in an embodiment of the present invention.

[0037] Summary of reference numerals in the attached drawings: movable outer ring 100, movable groove 101, movable magnetic component 102, fixed inner ring 200, mounting groove 201, fixed groove 202, fixed magnetic component 203, bottom support ring 300. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] In this document, suffixes such as "module," "part," or "unit" used to denote elements are used only for the purpose of illustrative purposes and have no specific meaning in themselves. Therefore, "module," "part," or "unit" may be used interchangeably.

[0040] In this document, the terms "upper," "lower," "inner," "outer," "front," "rear," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not 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, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In this document, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] In this document, "and / or" includes any and all combinations of one or more of the listed related items.

[0043] In this article, "multiple" means two or more, that is, it includes two, three, four, five, etc.

[0044] As used in this specification, the term "about" typically means + / -5% of the value, more typically + / -4% of the value, more typically + / -3% of the value, more typically + / -2% of the value, even more typically + / -1% of the value, and even more typically + / -0.5% of the value.

[0045] In this specification, certain embodiments may be disclosed in a range-bound format. It should be understood that this "range-bound" description is merely for convenience and brevity and should not be construed as a rigid limitation on the disclosed range. Therefore, the description of a range should be considered as having specifically disclosed all possible subranges and the individual numerical values ​​within those ranges. For example, a description of the range 1-6 should be considered as having specifically disclosed subranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and the individual numbers within those ranges, such as 1, 2, 3, 4, 5, and 6. This rule applies regardless of the breadth of the range.

[0046] Example 1: This embodiment provides a decompression ring, as shown in the attached image. Figure 1 , Figure 2 and Figure 3 As shown, it includes a movable outer ring 100 and a fixed inner ring 200. The movable outer ring 100 is nested on the outer peripheral wall of the fixed inner ring 200, and the inner peripheral wall of the movable outer ring 100 is in clearance fit with the outer peripheral wall of the fixed inner ring 200, so that the movable outer ring 100 can rotate around the fixed inner ring 200.

[0047] Specifically, the outer peripheral wall of the fixed inner ring 200 is provided with an annular mounting groove 201 along the circumferential direction. The width of the mounting groove 201 matches the width of the movable outer ring 100, so that the movable outer ring 100 can be fitted into the mounting groove 201. Furthermore, the inner peripheral wall of the movable outer ring 100 is fitted with the bottom of the mounting groove 201 with a clearance, so that the movable outer ring 100 can rotate around the fixed inner ring 200.

[0048] The contact surfaces of the movable outer ring 100 and the fixed inner ring 200 are provided with a self-lubricating material. In this embodiment, the inner peripheral wall of the movable outer ring 100 is provided with a hard self-lubricating material. Specifically, the inner peripheral wall of the movable outer ring 100 has an annular movable groove 101 along the circumferential direction, and the self-lubricating material is filled in the movable groove 101.

[0049] The thickness of the self-lubricating material is determined based on its coefficient of friction with the fixed inner ring 200. Specifically, the self-lubricating material is igus self-lubricating material, such as iglidur J type plastic, or a self-lubricating material made of phosphor bronze. This material can maintain good lubrication without the need for lubricating oil, eliminating the need for user maintenance of the ring and ensuring a good user experience.

[0050] The fixed inner ring 200 is made of a hard, non-self-lubricating material; such materials can be titanium alloys, stainless steel, crystal, or glass ceramics. It should be noted that, based on the aforementioned non-self-lubricating materials, those skilled in the art can apply materials to the surface of the fixed inner ring 200 to enhance the tactile feel, according to actual user experience requirements. These materials can be plastics, beeswax, etc.

[0051] In some embodiments, the inner peripheral wall of the movable outer ring 100 is also coated with a self-lubricating material at locations other than the movable groove 101.

[0052] In some embodiments, the two sidewalls of the movable outer ring 100 are also covered with a self-lubricating material.

[0053] Self-lubricating material is also provided on the inner peripheral wall of the movable outer ring 100 outside the movable groove 101 and / or on the two side walls of the movable outer ring 100. This can increase the contact area between the self-lubricating material and the fixed inner ring 200, which helps to improve the smoothness of the rotation of the movable outer ring 100 relative to the fixed inner ring 200, thereby improving the user experience.

[0054] In some embodiments, the active outer ring 100 is entirely made of a self-lubricating material.

[0055] Making the entire active outer ring 100 directly from a self-lubricating material reduces the thickness of the active outer ring 100, thereby further reducing the overall thickness of the decompression ring and improving the user experience.

[0056] In other embodiments, the outer peripheral wall of the fixed inner ring 200 is provided with a hard self-lubricating material, and the movable outer ring 100 is made of a hard non-self-lubricating material. Specifically, the bottom of the mounting groove 201 is provided with an annular fixing groove 202 along the circumference of the fixed inner ring 200, and the self-lubricating material is filled in the fixing groove 202.

[0057] In some embodiments, the bottom of the mounting groove 201 is also covered with a self-lubricating material in a location other than the fixing groove 202.

[0058] In some embodiments, the two sidewalls of the mounting groove 201 are also covered with a self-lubricating material.

[0059] Self-lubricating material is also provided at the bottom of the mounting groove 201 outside the fixed groove 202 and / or on the two side walls of the mounting groove 201. This can increase the contact area between the self-lubricating material and the movable outer ring 100, which helps to improve the smoothness of the rotation of the movable outer ring 100 relative to the fixed inner ring 200, thereby improving the user experience.

[0060] In some embodiments, the fixed inner ring 200 is made entirely of a self-lubricating material.

[0061] Making the entire inner ring 200 directly from a self-lubricating material reduces the thickness of the inner ring 200, thereby further reducing the overall thickness of the decompression ring and improving the user experience.

[0062] In other embodiments, the inner peripheral wall of the movable outer ring 100 and the outer peripheral wall of the fixed inner ring 200 are both provided with self-lubricating material. However, although this solution can improve the smoothness of the decompression ring's rotation and its service life, it will significantly increase the manufacturing cost, which is not conducive to the promotion of decompression rings.

[0063] This invention innovatively incorporates annular grooves on the movable outer ring 100 and / or the fixed inner ring 200, embedding self-lubricating material. Compared to directly applying a layer of self-lubricating material to the outer peripheral wall of the fixed inner ring 200, this overcomes the defects of self-lubricating materials such as easy wear, peeling, and uneven lubrication, achieving more stable lubrication, stronger wear resistance, smoother rotation, and longer service life. Simultaneously, this invention improves the structural reliability and manufacturing flexibility of the product, significantly outperforming simple surface-applied methods. Details are as follows: (1) Improve lubrication stability and uniformity to avoid lubrication failure. Self-lubricating material directly applied to the outer peripheral wall of the fixed inner ring 200 is prone to local wear, peeling, or uneven distribution due to continuous friction of the movable outer ring 100 during long-term use, especially at the edges or stress concentration areas, resulting in decreased lubrication performance and causing jamming and abnormal noise. This invention provides a movable groove 101 on the inner peripheral wall of the movable outer ring 100 and fills it with self-lubricating material, or a fixed groove 202 at the bottom of the mounting groove 201 of the fixed inner ring 200 and fills it with self-lubricating material, thus "embedding" the self-lubricating material into the groove structure to form an "embedded" lubrication structure. This effectively restricts the lateral movement and peeling of the self-lubricating material, allowing it to release lubricating components more stably and persistently during friction, thereby significantly improving the uniformity and continuity of lubrication and avoiding lubrication failure caused by material detachment.

[0064] (2) Extending product lifespan and improving wear resistance. Self-lubricating materials directly coated or applied to the surface have limited adhesion to the substrate and are easily worn away quickly due to repeated friction, resulting in a short product lifespan. In this invention, the self-lubricating material is confined within a groove, which is equivalent to being protected by the substrate material, thus slowing down the rate at which it is directly exposed to the friction interface. Even as the surface material gradually wears down, the self-lubricating material in the groove can continue to be replenished, achieving long-lasting, slow-release lubrication. Therefore, the overall wear resistance of this invention is significantly enhanced, resulting in a substantial extension of the service life of the decompression ring.

[0065] (3) Enhanced structural reliability and manufacturing flexibility. This invention places the self-lubricating material within the groove, avoiding the process difficulties (such as uneven thickness and poor adhesion) caused by large-area application, which is beneficial to improving manufacturing yield and consistency. Furthermore, this invention provides multiple implementation methods (such as groove filling only, groove + sidewall application, and integral self-lubricating material manufacturing), allowing for flexible selection of material combinations and processing techniques according to cost and performance requirements, thus enhancing the scalability and adaptability of the design.

[0066] In some embodiments, a movable magnetic element 102 (or a first magnetic element) is embedded in the inner peripheral wall of the movable outer ring 100, and a fixed magnetic element 203 (or a second magnetic element) is embedded in the outer peripheral wall of the fixed inner ring 200. During the rotation of the movable outer ring 100 around the fixed inner ring 200, the movable magnetic element 102 and the fixed magnetic element 203 switch between aligned and misaligned states, and attract each other when in the aligned state. The movable magnetic element 102 and / or the fixed magnetic element 203 are embedded in a self-lubricating material.

[0067] Specifically, when the inner peripheral wall of the movable outer ring 100 has a movable groove 101 along its circumference, the movable magnetic component 102 is fixedly embedded in the movable groove 101, and self-lubricating material is filled around the movable magnetic component 102; when the inner peripheral wall of the movable outer ring 100 does not have a movable groove 101, a movable connecting groove is formed on the inner peripheral wall of the movable outer ring 100, and the movable magnetic component 102 is fixedly embedded in the movable connecting groove. When the outer peripheral wall of the fixed inner ring 200 has a fixed groove 202, the fixed magnetic component 203 is fixedly embedded in the fixed groove 202, and self-lubricating material is filled around the fixed magnetic component 203; when the outer peripheral wall of the fixed inner ring 200 does not have a fixed groove 202, a fixed connecting groove is formed on the outer peripheral wall of the fixed inner ring 200, and the fixed magnetic component 203 is fixedly embedded in the fixed connecting groove. The movable magnetic component 102 and the fixed magnetic component 203 can be permanent magnets.

[0068] In some embodiments, the inner peripheral wall of the movable outer ring 100 and the outer peripheral wall of the fixed inner ring 200 are in clearance fit, and the clearance is greater than 0. The movable magnetic element 102 and the fixed magnetic element 203 are like-pole repulsive, preventing contact between the inner peripheral wall of the movable outer ring 100 and the outer peripheral wall of the fixed inner ring 200. When the user's actuation pressure exceeds the magnetic force between the movable magnetic element 102 and the fixed magnetic element 203, the inner peripheral wall of the movable outer ring 100 briefly contacts the outer peripheral wall of the fixed inner ring 200, resulting in short-term wear. This slows down the wear rate of the self-lubricating material, thereby further extending the service life of the decompression ring.

[0069] In some embodiments, the decompression ring further includes a bottom support ring 300 fixedly inserted into the fixed inner ring 200, the outer peripheral wall of the bottom support ring 300 being fitted against the inner peripheral wall of the fixed inner ring 200. The bottom support ring 300 integrates a battery, a control circuit board, a wireless charger, and multiple sensors. These sensors are used to collect the user's physical and physiological data. The physical data includes the flicking pressure and flicking frequency, while the physiological data includes heart rate, blood pressure, and body temperature. Specifically, the multiple sensors include, but are not limited to, Hall effect sensors, inertial sensors, touch sensors, heart rate sensors, blood pressure sensors, temperature sensors, and optical sensors.

[0070] In some embodiments, user physical data (pulling pressure and pulsating frequency) collected by sensors can be processed and used to build or expand a historical user database, thereby providing data support for the thickness iteration design of subsequent products.

[0071] During the application process, the technicians found that the existing rings could only be used by individual users and could not be used to interact with others, indicating that there was room for improvement in the user experience.

[0072] Therefore, in some embodiments, the underlying support ring 300 also integrates a sensory interaction module and a wireless communication module. The current decompression ring is wirelessly connected to the second decompression ring through the wireless communication module. The current decompression ring obtains the touch information of the second decompression ring through the wireless communication module and controls the sensory interaction module to perform corresponding synchronous sensory interaction actions based on the touch information.

[0073] Specifically, the sensory interaction module includes a vibration motor, RGB light strips, etc., and the wireless communication module can use Bluetooth, WiFi, or other wireless communication modules. The current decompression ring is wirelessly connected to a second decompression ring via the wireless communication module. This second decompression ring is, for example, a decompression ring worn and used by a second user. During use, the current user can establish a wireless connection with the second user's second decompression ring through the wireless communication module. When the second user touches their second decompression ring, the current decompression ring performs a corresponding synchronous sensory interaction action based on the received touch information.

[0074] For example, in one embodiment, a vibration motor is integrated within the bottom support ring 300 of the current decompression ring. When a second user touches or clicks the second decompression ring, the current decompression ring controls the vibration motor to vibrate synchronously to perform sensory interaction, thereby enhancing the user experience. In another embodiment, the sensory interaction module is an RGB light strip. When the second decompression ring is moved, the current decompression ring performs a corresponding light strip flashing action according to its moving speed.

[0075] In practical applications, different users have different sensitivities to sensory feedback. If the sensory feedback does not match the user's personal preferences, it may bring additional pressure to the user or reduce the user experience.

[0076] To address the aforementioned technical issues, in some embodiments, the current decompression ring is also used to: acquire the user's personalized data; determine the initial interaction cycle and initial interaction frequency of the sensory interaction module based on the personalized data; acquire the ring-wearing data of the user under the initial interaction cycle and initial interaction frequency; optimize the initial interaction cycle and initial interaction frequency based on the ring-wearing data to generate an optimized cycle and optimized frequency; and control the sensory interaction module to perform corresponding synchronous sensory interaction actions based on the optimized cycle and optimized frequency.

[0077] Specifically, the current stress-relief ring, when in use, also acquires the user's personalized data. For example, when the user wears the ring, they can be asked to input personalized data, such as preferred vibration period, preferred vibration frequency, and preferred light strip flashing intensity, thereby determining the initial interaction period and initial interaction frequency. However, the initially determined parameters may not match the user's actual preferences. Therefore, during use, the ring-wearing data under these initial parameters is further acquired. Based on this data, the user's preference for the initial interaction period and frequency is determined, and the two parameters are dynamically adjusted and optimized to generate an optimized period and optimized frequency. Then, the sensory interaction module is controlled to execute the corresponding synchronous sensory interaction actions.

[0078] In existing technologies, in order for the movable outer ring 100 to rotate around the fixed inner ring 200, a bearing is often placed in the middle. However, on the one hand, the existing bearings are all relatively large in size, and since the ring is worn on the user's finger, even an increase in size by millimeters will bring a huge difference in user experience, resulting in a decline in user experience. On the other hand, small-sized, high-quality bearings are very expensive, which increases the cost of the product and cannot meet the low-cost requirements of the decompression ring usage scenario, thus hindering its market competitiveness.

[0079] To solve this technical problem, the present invention, by nesting the movable outer ring 100 on the outer peripheral wall of the fixed inner ring 200, and by using the movable outer ring 100 with self-lubricating material provided in the above manner, can effectively reduce the overall thickness of the decompression ring from the original 5-8mm to about 3mm, which greatly improves the user experience.

[0080] In practical applications, the thickness of the self-lubricating material is very important. If the thickness is too large, the overall size of the decompression ring will be too large, thus reducing the user experience. If the thickness is too small, the service life of the decompression ring will be reduced due to frictional wear, leading to user complaints or dissatisfaction.

[0081] Therefore, this embodiment also provides a method for determining the material thickness of a decompression ring, used to determine the thickness of the self-lubricating material filled in the movable groove 101 of the aforementioned decompression ring, as shown in the attached figure. Figure 4 As shown, it includes the following steps: S1. Determine the coefficient of friction: First, determine the surface material of the fixed inner ring 200 made of non-self-lubricating material, and then determine the coefficient of friction between the self-lubricating material and the surface material.

[0082] S2. Data Processing: Obtain historical user data and determine the toggle pressure, toggle frequency, and expected service life based on the historical user data.

[0083] S3. Determine the wear rate: Determine the wear rate based on the friction coefficient and the actuation pressure.

[0084] S4. Determine the calculated thickness: Determine the number of rotations based on the actuation frequency and expected service life, and then determine the calculated thickness based on the number of rotations and wear rate. Specifically, after the user selects the desired surface material of the fixed inner ring 200, determine the surface characteristics of that material. Based on the material pairing relationship (i.e., the combination between the surface material of the fixed inner ring 200 and the self-lubricating material), obtain the coefficient of friction between the two through experimental measurement or by consulting a material database. The coefficient of friction determines the wear of the self-lubricating material by the surface material of the fixed inner ring 200 during use. This coefficient of friction reflects the frictional behavior between interfaces during relative sliding and is one of the key parameters affecting wear performance.

[0085] At this point, further historical user data is obtained, such as user data on historically sold decompression rings or similar rings, to determine the actuation pressure, actuation frequency, and expected lifespan. Step S2 specifically includes the following steps: S201. Obtain objective group characteristics and / or first subjective group characteristics of users from historical user data, wherein the objective group characteristics include at least one of the following: occupational category, health status; and the first subjective group characteristics include at least one of the following: degree of tug-of-war preference, anxiety level.

[0086] S202. Using objective group characteristics and / or primary subjective group characteristics as clustering conditions, cluster users to form at least one user group.

[0087] S203. Calculate the toggle pressure, toggle frequency, and expected service life for each user group.

[0088] In some embodiments, in step S202, the clustering conditions further include a second subjective group characteristic, which includes at least one of the following: toggle pressure, toggle frequency, and expected service life.

[0089] In some embodiments, in step S203, the actuation pressure, actuation frequency, and expected service life are calculated by using at least one of the mode, median, and mean.

[0090] Specifically, a large amount of behavioral data and background information on users during actual use of the pressure-relieving ring or similar rings will be collected to form historical user data. From this historical user data, objective group characteristics, first subjective group characteristics, and second subjective group characteristics of the users will be obtained. Objective group characteristics include at least the user's occupation category and health status. Occupation category includes, for example, programmers, doctors, teachers, students, etc.; health status includes, for example, whether the user has been diagnosed with anxiety disorder, sleep disorder, or other physiological or psychological conditions that affect finger dexterity. First subjective group characteristics include at least the user's preference for using the pressure-relieving ring and their anxiety level. The preference for using the ring can be obtained through questionnaires, user interviews, or APP usage records, and is divided into three levels: low, medium, and high. The anxiety level can be classified based on the assessment results of standardized psychological scales such as GAD-7 or HAMA. Second subjective group characteristics include preliminary data on the finger pressure and frequency measured by sensors during actual use, as well as user feedback or system records of the expected lifespan.

[0091] Then, at least one of the objective group characteristics (occupation category, health status), the first subjective group characteristics (degree of dialing preference, anxiety level), and the second subjective group characteristics (preliminary dialing pressure, dialing frequency, expected lifespan) is used as the clustering condition to construct a multidimensional feature vector. Then, a clustering algorithm (such as K-means clustering, hierarchical clustering, DBSCAN or Gaussian mixture model) is used to further refine the grouping of users. Through cluster analysis, users were divided into several typical user groups with significant differences, such as: 1) High-intensity occupational users: Professionals such as programmers or doctors, who use keyboards, mice, or surgical instruments for long periods of time, have mild wrist fatigue or preventative use needs, and prefer medium to high frequency of finger tapping and medium finger tapping pressure; 2) High-anxiety high-frequency stimulation users: Patients diagnosed with anxiety disorder or generalized anxiety disorder, with high anxiety levels, use the stress relief ring as an emotion regulation tool, tapping frequently and for long durations, and prefer obvious tactile feedback (higher finger tapping pressure); 3) Sleep disorder support users: Patients with sleep disorders such as difficulty falling asleep or frequent awakenings at night, mainly use it before bedtime, with concentrated usage periods, medium frequency, and low pressure, emphasizing quiet and gentle operation; 4) Entertainment preference users: Students, whose purpose of use is more for fun and social sharing, with a high degree of finger tapping preference but weak persistence, irregular usage patterns, and medium requirements for expected lifespan; 5) Minimalist low-frequency users: Healthy adult users, who only use it briefly when under occasional stress, tapping very infrequently, with no special preference for stress, and a long expected lifespan.

[0092] Then, for each user group, based on the second subjective group characteristic data of users within that group (i.e., the actual collected or reported data on dialing pressure, dialing frequency, and expected lifespan), statistical analysis methods are used to calculate representative parameter values. Specifically, for each parameter (dialing pressure, dialing frequency, and expected lifespan), at least one of the following can be selected for calculation: mode (the value that appears most frequently), median (the value in the middle after the data is sorted), or mean (arithmetic mean).

[0093] Preferably, the most appropriate statistic should be selected based on the distribution characteristics of the data: for example, when there are obvious outliers or a skewed distribution, the median should be used to enhance robustness; when the data distribution is relatively symmetrical and there are no significant outliers, the mean can be used; when focusing on the most common usage patterns, the mode can be used. If necessary, a weighted average or outlier removal can be combined with the calculation to ensure the representativeness and reliability of the parameters.

[0094] Ultimately, a set of typical toggle pressure, toggle frequency, and expected service life parameters that accurately reflect the usage behavior of each user group are output, providing a refined input basis for subsequent wear rate analysis and self-lubricating material design.

[0095] In some embodiments, before clustering users, historical user data needs to be preprocessed to obtain a preliminary expected lifespan. This means the acquired historical user data includes the actual lifespan and user evaluations of the actual lifespan. The preliminary expected lifespan is obtained through these two factors. For example, if the actual lifespan is 30 days and the user's evaluation of the actual lifespan is "I hope the lifespan can be extended by 10 days," then the preliminary expected lifespan is 40 days.

[0096] Based on the determined coefficient of friction, and combined with the stress state (pulling pressure) of the decompression ring in actual use, the corresponding wear coefficient K can be derived or experimentally calibrated. This wear coefficient K is closely related to material pairing, surface roughness, and lubrication conditions, and is usually positively correlated with the coefficient of friction. An empirical mapping relationship can be established through calibration experiments.

[0097] Next, in step S3, the classic Archard's Wear Equation is used to quantitatively calculate the wear rate. The Archard's Wear Equation is as follows: in: Q: Cumulative wear volume (mm) 3 ); W: Normal load (N), which is directly related to the "pulling pressure" applied by the user when pulling the ring. The "pulling pressure" is obtained through step S2. L: Total sliding distance (mm), which is proportional to the number of rotations. Each complete flicking action corresponds to a certain sliding stroke. K: Dimensionless wear coefficient, determined by material pairing and friction coefficient; H: Hardness of self-lubricating materials (MPa or N / mm) 2 ).

[0098] For ease of engineering application, the above volumetric wear model is transformed into a linear wear rate (i.e., thickness loss per unit number of revolutions), defined as "wear thickness per revolution". The cumulative linear wear amount can be obtained by dividing the wear volume Q by the wear contact area A: Furthermore, let l be the sliding distance corresponding to one rotation of the toggle ring. Then the total sliding distance L = n × l, where n is the number of rotations. From this, the average wear thickness per unit number of rotations can be obtained as: The wear rate (c) is the average thickness loss of the self-lubricating material layer in the contact area for each rotation of the ring, expressed in mm / rotation.

[0099] Therefore, given the user's actuation pressure W (from step S2), the hardness H of the self-lubricating material, the contact area A, the sliding distance l of the actuation ring rotating once, and the wear coefficient K determined by the friction coefficient, the wear rate c per unit number of rotations of the self-lubricating material can be calculated.

[0100] Simultaneously, based on the toggle frequency and expected service life determined in step S2, the number of rotations can be determined. Let the toggle frequency be a (rotations / day), the expected service life be b (days), and the number of rotations be n (rotations), then n = a × b. At this point, the calculated thickness can be determined based on the number of rotations and the wear rate. The wear rate is determined to be c (mm / rotation) in step S3, and the calculated thickness is D (mm), then D = n × c.

[0101] In some embodiments, the method for determining the thickness of the self-lubricating material further includes the following steps: S5. Determine the reference thickness: Obtain the expected thickness, compare the expected thickness with the calculated thickness, and select the smaller value or the weighted average value under the preset weight as the reference thickness.

[0102] Since the calculated thickness is based on the expected service life, the calculated thickness may be large. Therefore, it is necessary to further determine the reference thickness of the self-lubricating material by combining the expected thickness and the calculated thickness.

[0103] First, determine the expected thickness desired by users or in the product design. This expected thickness can be determined based on a combination of factors, including ergonomic data, the overall structure of the ring, aesthetic requirements, feedback on wearing comfort, and manufacturing capabilities. It is typically derived from historical product data, user surveys, or industrial design specifications. For example, to ensure a lightweight and unobtrusive fit, the expected thickness can be set between 0.4 and 0.6 mm.

[0104] Next, the calculated thickness obtained in step S4 based on the wear rate and number of rotations is compared with the expected thickness mentioned above. The calculated thickness is the minimum safe thickness required to ensure that the self-lubricating material is not completely worn through within its expected service life, and it has engineering reliability significance.

[0105] Subsequently, based on the actual design objectives, one of the following two methods is selected to determine the baseline thickness: 1) Conservative selection method: Directly select the smaller value between the calculated thickness and the expected thickness as the baseline thickness. 2) Weighted average method: In a specific product development stage (such as iterative optimization or balanced design), a weighted average of the calculated thickness and the expected thickness can be obtained using preset weights.

[0106] Optionally, the baseline thickness = α·calculated thickness + (1 - α)·expected thickness. The weighting coefficient α ranges from [0,1] and is determined based on design priorities. For example, α = 0.7 indicates a greater emphasis on lifespan reliability, focusing on the calculated thickness; α = 0.3 emphasizes user experience and appearance design, favoring the expected thickness. Weights can be pre-set and integrated into the design process based on product positioning, user group preferences, or corporate design standards.

[0107] In this embodiment of the invention, an annular movable groove 101 is formed on the inner peripheral wall of the movable outer ring 100, and a self-lubricating material is filled in the movable groove 101. The movable outer ring 100 is directly rotated and nested on the outer peripheral wall of the fixed inner ring 200 to replace the bearing in the prior art. This can effectively solve the technical problem that the bearing size in the prior art cannot be further reduced, and at the same time, it can effectively solve the technical problem that the lubrication effect of the bearing gradually decreases with the increase of the usage time, which greatly improves the user experience.

[0108] In practical applications, there are significant differences between using self-lubricating materials and using bearings to achieve the rotational connection between the movable outer ring 100 and the fixed inner ring 200. Bearings generally do not experience significant wear, but their rotational smoothness is mainly affected. Conversely, self-lubricating materials do not experience any impact on lubrication during use, meaning their rotational smoothness remains unaffected, although they do experience wear. Therefore, with increased usage time, a gap will develop between the self-lubricating material and the fixed inner ring 200, and this gap will increase over time. When this gap increases to a certain extent, when the user rotates the movable outer ring 100 around the fixed inner ring 200, the movable outer ring 100 will experience radial wobble, and the expected rotation distance will deviate from the actual rotation distance, resulting in a decreased user experience.

[0109] To address the aforementioned technical problems, in some embodiments, the method for determining the thickness of the self-lubricating material further includes the following steps: S6. Determine the final thickness: Based on the gap between the self-lubricating material and the fixed inner ring 200, and the user experience threshold, determine the final thickness. This includes the following steps: S601. Determine the nonlinear relationship between the gap between the self-lubricating material and the fixed inner ring 200 and the user experience.

[0110] S602, Obtain the user experience threshold.

[0111] S603. Substitute the user experience threshold into the nonlinear correspondence to determine the reference gap between the self-lubricating material and the fixed inner ring 200.

[0112] S604. Adjust the reference thickness according to the reference gap to obtain the final thickness; The adjustment includes: if the wear gap generated when the reference thickness wears down to a preset lower limit is greater than the reference gap, then the reference thickness is appropriately reduced; otherwise, the reference thickness is maintained or increased to obtain the final thickness.

[0113] Specifically, after determining the baseline thickness of the self-lubricating material, a non-linear relationship between the gap between the self-lubricating material and the fixed inner ring 200 and the user experience is further determined. For example, this non-linear relationship is obtained and determined in advance by technicians based on experimental data. Then, a user experience threshold is obtained, which can be a fixed threshold set by technicians based on feedback from general users, or a personalized threshold set by the current user based on their own perceptual sensitivity. The obtained user experience threshold is then substituted into the non-linear relationship to determine the baseline gap, and the baseline thickness is adjusted according to the baseline gap to obtain the final thickness.

[0114] For example, by substituting a user-defined personalized threshold into this nonlinear correspondence and determining the reference gap, it is found that when the self-lubricating material with the reference thickness wears down to the preset lower limit (the remaining thickness of the self-lubricating material reaches the preset lower limit value), the wear gap between the self-lubricating material and the fixed inner ring 200 is greater than the reference gap. Therefore, the thickness of the self-lubricating material is reduced based on the reference thickness to obtain the final thickness. Similarly, when the self-lubricating material with the reference thickness wears down to the preset lower limit, the resulting wear gap is less than the reference gap. Therefore, the thickness of the self-lubricating material is increased based on the reference thickness to obtain the final thickness. When the self-lubricating material with the reference thickness wears down to the preset lower limit, the resulting wear gap is equal to the reference gap. Therefore, the reference thickness is maintained as the final thickness.

[0115] In this embodiment of the invention, by setting the thickness of the self-lubricating material to an acceptable wear gap for the user, the user experience can be effectively improved, and the negative impact of excessive wear of the self-lubricating material on the user experience can be avoided, which is beneficial to improving the user experience.

[0116] This invention addresses the fundamental contradiction between miniaturization and durability through a refined thickness design for thin-walled structures. Existing decompression rings typically employ metal bearing structures, resulting in large overall dimensions and redundant material thickness, failing to meet lifespan requirements without precise calculations. This invention aims for extreme miniaturization and structural simplification, eliminating the traditional bearing structure and employing a self-lubricating material for direct sliding contact to achieve rotation. In this context, the self-lubricating material must be designed to be extremely thin (e.g., only 0.4~0.6mm thick) to ensure the overall ring's wearing comfort and aesthetics.

[0117] However, excessively thin self-lubricating materials are easily worn through under high-frequency vibration, leading to structural failure. Therefore, the initial thickness of the self-lubricating material must be precisely calculated and optimized, avoiding both excessive thickness (affecting comfort and appearance) and insufficient lifespan (resulting in short lifespan). The three-level thickness determination method proposed in this invention, consisting of "calculated thickness – baseline thickness – final thickness," is designed specifically for predicting material lifespan and ensuring structural reliability under such ultra-thin, high-wear conditions, filling the gap in existing technologies that lack systematic thickness design for thin-walled self-lubricating structures.

[0118] Furthermore, the present invention precisely controls the thickness of the self-lubricating material, ensuring the stability and consistency of the magnetic jerking sensation. In this invention, the decompression ring uses a movable magnetic component 102 embedded in the inner peripheral wall of the movable outer ring 100 and a fixed magnetic component 203 embedded in the outer peripheral wall of the fixed inner ring 200. During relative rotation, the two components periodically experience a switching between "alignment attraction" and "dislocation separation," thereby generating regular magnetic force changes and forming a perceptible "jerking sensation" or "damping rhythm." This is the core mechanism for improving the decompression effect.

[0119] The "sense of cadence" sought in this invention is not merely mechanical feedback, but a psychological intervention at the level of embodied cognition. Research shows that rhythmic, predictable tactile feedback can effectively activate the brain's reward system and attention control network, helping users establish a sense of "control" and "order," thereby alleviating anxiety and improving concentration. Specifically: 1) Rhythm: The periodic resistance changes generated by magnetic alignment create a tactile rhythm similar to a "click" or "pulse," which can guide the user into a meditative or focused state, similar to the "flow" effect of a fidget spinner.

[0120] 2) Predictability: Stable pause points allow users to receive consistent feedback with every swipe, enhancing their sense of control and reducing anxiety caused by uncertainty.

[0121] 3) Multi-sensory synergy: Combining the slight magnetic sound with the touch of the fingers, it forms multi-modal feedback, further enhancing the immersion and stress relief effect.

[0122] Therefore, maintaining the stability of the sense of jolt is not only a mechanical performance requirement, but also a core guarantee for achieving psychological adjustment function.

[0123] However, the magnetic interaction mechanism of this invention is highly sensitive to structural gaps and geometric accuracy, and the wear of the self-lubricating material directly affects this accuracy, specifically as follows: (1) Risk of collision with magnetic components: The self-lubricating material is filled in the movable groove 101 opened in the inner peripheral wall of the movable outer ring 100 and distributed around the movable magnetic component 102. During the rotation of the movable outer ring 100 relative to the fixed inner ring 200, the self-lubricating material begins to wear from the inner peripheral wall of the movable outer ring 100. Although the movable magnetic component 102 will wear synchronously, the materials are different and the wear rate is different. If the self-lubricating material wears excessively, it is easy for the movable magnetic component 102 to bulge relative to the self-lubricating material. During the rotation of the movable outer ring 100, the bulging movable magnetic component 102 may physically collide with the fixed magnetic component 203 on the outer peripheral wall of the fixed inner ring 200, producing abnormal noise, jamming or even damaging the magnet, disrupting the originally smooth magnetic force change curve, and seriously weakening the comfort and controllability of the jerking sensation.

[0124] (2) Rotation and shaking cause magnetic misalignment: The self-lubricating material serves as a gap compensation layer and guide layer between the movable outer ring 100 and the fixed inner ring 200. Its uniform wear can maintain a stable sliding fit. Once the self-lubricating material wears unevenly or is insufficient in thickness, the movable outer ring 100 will generate radial shaking or eccentric oscillation when rotating, causing the relative position between the movable magnetic component 102 and the fixed magnetic component 203 to deviate from the design trajectory. The magnetic poles are not aligned, the attraction force is weakened or the shaking is violent, making the "stuttering point" perceived by the user blurred, misaligned or disappear, seriously affecting the rhythm and satisfaction of the decompression experience.

[0125] Therefore, precise thickness design is essential to ensure that the remaining thickness of the self-lubricating material is sufficient to maintain stable rotation of the moving outer ring and precise alignment of the magnetic components throughout the entire expected service life. This invention predicts the total wear amount using a wear rate model and then adjusts the thickness in reverse based on user experience thresholds. This is precisely to maintain the functional integrity of the magnetic interaction system even at the end of the self-lubricating material's lifespan, ensuring that the "jerking sensation" is clear, stable, and predictable from beginning to end.

[0126] It should be noted that if an annular fixing groove 202 is opened at the bottom of the mounting groove 201 along the circumference of the fixing inner ring 200, and the fixing groove 202 is filled with self-lubricating material, the thickness of the self-lubricating material filled in the fixing groove 202 shall be determined with reference to the above method.

[0127] This embodiment also provides a material thickness determination system for a decompression ring, used to determine the thickness of the self-lubricating material filling the movable groove 101 or fixed groove 202 of the aforementioned decompression ring, as shown in the attached figure. Figure 5 As shown, it includes: The friction coefficient determination module is used to determine the surface material of the fixed inner ring 200 or the movable outer ring 100 made of non-self-lubricating material, and to determine the friction coefficient between the self-lubricating material and the surface material. The data processing module is used to acquire historical user data and determine the toggle pressure, toggle frequency, expected service life and expected thickness based on the historical user data. The wear rate determination module is used to determine the wear rate based on the friction coefficient and the turning pressure. The thickness calculation module is used to determine the number of rotations based on the toggle frequency and expected service life, and then determine the calculated thickness based on the number of rotations and wear rate. The reference thickness determination module is used to obtain the expected thickness, compare the expected thickness with the calculated thickness, and select the smaller value or the weighted average value under the preset weight as the reference thickness. The final thickness determination module is used to determine the final thickness based on the gap between the self-lubricating material and the fixed inner ring 200 or the movable outer ring 100 and the user experience threshold.

[0128] Example 2: This embodiment provides a method for determining the material thickness of a decompression ring, used to determine the thickness of the self-lubricating material in the aforementioned decompression ring. The difference between this method and Embodiment 1 is that: To further enhance the scientific rigor and flexibility of user group segmentation, this embodiment introduces a weighted allocation mechanism for clustering factors during the clustering process. Based on the degree of influence of different characteristics on user behavior, the contribution of each clustering condition in the clustering process is dynamically adjusted, thereby obtaining a user group structure that better meets actual needs. The specific implementation method is as follows: 1. Weight setting method: The clustering factors include: objective group characteristics (such as occupational category and health status), primary subjective group characteristics (such as anxiety level and trigger preference), and secondary subjective group characteristics (such as trigger pressure, trigger frequency, and expected lifespan). The weights of each clustering factor are determined as follows: 1.1 Preset Fixed Weights: Based on historical user data analysis or expert experience, pre-set the weight values ​​for each feature. For example, in product design targeting working professionals, occupational category and anxiety level have a significant impact on user behavior and can be assigned higher weights: occupational category weight is set to 0.3, and anxiety level weight is set to 0.3; while health status has a relatively small impact and is weighted at 0.1; the remaining features are evenly distributed among the remaining weights.

[0129] 1.2 Dynamically Adjustable Weights: Provides a user configuration interface or backend management system, allowing product designers to manually adjust the weights of each feature according to market positioning, target audience, or promotion stage, thereby achieving flexible user clustering strategies.

[0130] 1.3 Data-Driven Weighting: Based on historical user data, the system automatically calculates the correlation strength between each feature and key usage parameters (such as dialing pressure and dialing frequency) through correlation analysis (e.g., Pearson correlation coefficient, mutual information) or machine learning models (e.g., random forest feature importance ranking), and generates a weighting scheme accordingly. For example, if data analysis shows a high positive correlation between "anxiety level" and "dialing frequency," then "anxiety level" will be given a higher weight during clustering.

[0131] 2. Weighted clustering process: Before executing clustering algorithms (such as K-Means, hierarchical clustering, or DBSCAN), the original feature vectors are weighted. Let the feature vector of user i be: The corresponding weight vector is: The weighted eigenvectors are then: Clustering algorithms calculate the similarity or distance between users based on weighted feature vectors, thereby grouping them into clusters. By adjusting the weights, the dominant role of certain key features in the clustering process can be controlled, preventing secondary features from interfering with the clustering results.

[0132] 3. Weight normalization and constraints: To ensure cluster stability, all weights must meet the normalization condition: At the same time, upper and lower limits for the weight can be set, such as This prevents excessive weighting of a particular feature from causing over-biasing in the clustering results.

[0133] 4. Application Example: For example, when developing a stress-relieving ring for "high-pressure workplace individuals," the system can set: anxiety level (weight 0.35), occupational category (weight 0.3), finger-touch frequency (weight 0.25), and other characteristics (total weight 0.1). Clustering results show that this group has a typical behavioral pattern of high finger-touch frequency and medium-to-high stress levels. Based on this, their "typical finger-touch pressure" and "expected lifespan" can be calculated, thus determining a thicker self-lubricating material solution to ensure durability. When targeting "teenagers and students," the weights of "findability of finger-touch" and "findability frequency" can be increased, while the weight of "health status" can be decreased, thereby identifying "high-frequency light-touch" users and matching them with a thinner, more sensitive material thickness design.

[0134] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0135] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a computer terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0136] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A nested decompression ring, characterized in that, The device includes a movable outer ring (100) and a fixed inner ring (200). The movable outer ring (100) is nested on the outer peripheral wall of the fixed inner ring (200), and the inner peripheral wall of the movable outer ring (100) is in clearance fit with the outer peripheral wall of the fixed inner ring (200), so that the movable outer ring (100) can rotate around the fixed inner ring (200). The inner peripheral wall of the movable outer ring (100) is provided with a self-lubricating material, and the inner peripheral wall of the movable outer ring (100) is provided with an annular movable groove (101) along the circumferential direction, and the self-lubricating material is filled in the movable groove (101).

2. The nested decompression ring according to claim 1, characterized in that, The outer peripheral wall of the fixed outer ring (100) is provided with an annular mounting groove (201) along the circumferential direction. The width of the mounting groove (201) matches the width of the movable outer ring (100), so that the movable outer ring (100) can be fitted into the mounting groove (201). The self-lubricating material is applied to the inner peripheral wall of the movable outer ring (100) at a position other than the movable groove (101); And / or, the self-lubricating material is applied to both sides of the movable outer ring (100).

3. A nested decompression ring according to claim 2, characterized in that, The inner peripheral wall of the movable outer ring (100) is fitted with a movable magnetic component (102), and the outer peripheral wall of the fixed inner ring (200) is fitted with a fixed magnetic component (203). During the rotation of the movable outer ring (100) around the fixed inner ring (200), the movable magnetic component (102) and the fixed magnetic component (203) switch between aligned and misaligned states. The movable magnetic component (102) is fixedly embedded in the movable groove (101), and the self-lubricating material is filled around the movable magnetic component (102); the outer peripheral wall of the fixed inner ring (200) is provided with a fixed connection groove, and the fixed magnetic component (203) is fixedly embedded in the fixed connection groove.

4. A nested decompression ring, characterized in that, It includes a movable outer ring (100) and a fixed inner ring (200). The movable outer ring (100) is nested on the outer peripheral wall of the fixed inner ring (200), and the inner peripheral wall of the movable outer ring (100) is in clearance fit with the outer peripheral wall of the fixed inner ring (200), so that the movable outer ring (100) can rotate around the fixed inner ring (200). The outer peripheral wall of the fixed inner ring (200) is provided with a self-lubricating material, and the outer peripheral wall of the fixed inner ring (200) is provided with an annular fixing groove (202) along the circumferential direction, and the self-lubricating material is filled in the fixing groove (202).

5. A nested decompression ring according to claim 4, characterized in that, The outer peripheral wall of the fixed inner ring (200) is provided with an annular mounting groove (201) along the circumferential direction. The width of the mounting groove (201) matches the width of the movable outer ring (100), so that the movable outer ring (100) can be fitted into the mounting groove (201); the fixed groove (202) is provided at the bottom of the mounting groove (201). The self-lubricating material is applied to the bottom of the mounting groove (201) at a position other than the fixing groove (202); And / or, the self-lubricating material is applied to both sides of the mounting groove (201).

6. A nested decompression ring according to claim 5, characterized in that, The inner peripheral wall of the movable outer ring (100) is fitted with a movable magnetic component (102), and the outer peripheral wall of the fixed inner ring (200) is fitted with a fixed magnetic component (203). During the rotation of the movable outer ring (100) around the fixed inner ring (200), the movable magnetic component (102) and the fixed magnetic component (203) switch between aligned and misaligned states. The fixed magnetic component (203) is fixedly embedded in the fixed groove (202), and the self-lubricating material is filled around the fixed magnetic component (203); the inner peripheral wall of the movable outer ring (100) is provided with a movable connecting groove, and the movable magnetic component (102) is fixedly embedded in the movable connecting groove.

7. A method for determining the material thickness of a nested decompression ring, characterized in that, The method for determining the thickness of the self-lubricating material filling the movable groove (101) or the fixed groove (202) of a nested decompression ring according to any one of claims 1-6 includes the following steps: S1. Determine the coefficient of friction: First, determine the surface material of the fixed inner ring (200) or the movable outer ring (100) made of a non-self-lubricating material, and then determine the coefficient of friction between the self-lubricating material and the surface material. S2. Data processing: Obtain historical user data, and determine the toggle pressure, toggle frequency and expected service life based on the historical user data; S3. Determine the wear rate: Determine the wear rate based on the friction coefficient and the actuation pressure; S4. Determine the calculated thickness: Determine the number of rotations based on the agitation frequency and the expected service life, and then determine the calculated thickness based on the number of rotations and the wear rate.

8. The method for determining the material thickness of a nested decompression ring according to claim 7, characterized in that, Step S2 specifically includes the following steps: S201. Obtain objective group characteristics and / or first subjective group characteristics of users from historical user data, wherein the objective group characteristics include at least one of the following: occupational category, health status; and the first subjective group characteristics include at least one of the following: degree of tug-of-war preference, anxiety level. S202. Cluster users to form at least one user group by using objective group characteristics and / or first subjective group characteristics as clustering conditions; S203. Calculate the toggle pressure, toggle frequency, and expected service life for each user group; In step S202, the clustering conditions also include a second subjective group characteristic, which includes at least one of the following: pulsating pressure, pulsating frequency, and expected service life. And / or, in step S203, the actuation pressure, actuation frequency and expected service life are calculated by using at least one of the mode, median and mean.

9. The method for determining the material thickness of a nested decompression ring according to claim 8, characterized in that, It also includes the following steps: S5. Determine the reference thickness: Obtain the expected thickness, compare the expected thickness with the calculated thickness, and select the smaller value or the weighted average value under the preset weight as the reference thickness.

10. The method for determining the material thickness of a nested decompression ring according to claim 9, characterized in that, It also includes the following steps: S6. Determine the final thickness: Based on the gap between the self-lubricating material and the fixed inner ring or the movable outer ring and the user experience threshold, determine the final thickness; Step S6 specifically includes the following steps: S601. Determine the non-linear relationship between the gap between the self-lubricating material and the fixed inner ring or the movable outer ring and the user experience. S602, Obtain the user experience threshold; S603. Substitute the user experience threshold into the nonlinear correspondence to determine the reference gap between the self-lubricating material and the fixed inner ring or the movable outer ring. S604. Adjust the reference thickness according to the reference gap to obtain the final thickness; The adjustment includes: if the wear gap generated when the reference thickness wears down to a preset lower limit is greater than the reference gap, then the reference thickness is appropriately reduced; otherwise, the reference thickness is maintained or increased to obtain the final thickness.

Images