Chain massage structure and massager

Abstract

This utility model relates to a chain-type massage structure and massager, belonging to the technical field of massagers. It includes a drive assembly with a drive member and a drive rod; the drive member and drive rod are connected; the massage assembly has fixed chain links and multiple movable chain links; each movable chain link consists of a support body and a hinge; the hinge is located on both sides of the support body circumferentially; the support body has gaps for the drive rod to pass through; the multiple movable chain links are sequentially hinged through the hinge. When inserted into the body, it can better adapt to the contours and curves of the human body, enhancing comfort and the overall experience.

Description

Technical Field

[0001] This utility model relates to a chain massage structure, specifically a chain massage structure and a massager. Background Technology

[0002] Existing massagers often employ a fixed structure in their design, typically lacking sufficient joints or flexible connections. This makes it difficult for them to conform to the curves of the human body during use, especially their poor adaptability to subtle changes in curvature and angle within the massage area. Due to the lack of flexibility, this non-fitting design may lead to excessive friction or concentrated pressure, resulting in fatigue or even mild discomfort, and feeling even more rigid and mechanical, especially during active scenarios. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a chain-type massage structure and a massager.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A chain-type massage structure is provided, comprising: A drive assembly, comprising a drive element and a drive rod; The driving component and the driving rod are connected, and the driving rod has a spiral structure; The massage component has fixed links and multiple movable links; Each of the aforementioned movable links consists of a support body and a hinge. The hinge portion is provided on both sides of the support body in the circumferential direction; The support body is provided with a gap for the drive rod to pass through; Multiple movable links are sequentially hinged together via the hinge portion to form a chain structure; One end N1 of the fixed link is fixedly connected to the drive member, and the other end N2 is hinged to a movable link. In the direction away from the fixed link, the width W1 of the gap of the first movable link is greater than the width WN of the gap of the remaining movable links.

[0005] Preferably, in the direction away from the fixed link, the width W2 of the gap of the second movable link is equal to the width W1 of the gap of the first movable link, and greater than the width WN of the gaps of the remaining movable links.

[0006] Preferably, in the direction away from the fixed link, the following condition is met: D1>WN≥D2; Wherein, D1 is the diameter of the maximum motion trajectory formed by the drive rod when it rotates in the curved part, and D2 is the diameter of the drive rod body.

[0007] Preferably, the hinge point between the fixed link and the first movable link is link node A, and the other hinge point of the first movable link is link node C. The distance between link node A and link node C is H, satisfying the following relationship: H / 2 + W1 = D1.

[0008] Preferably, each of the hinged parts includes two chain nodes, which are used to hinge the movable link to two adjacent movable links to form a chain structure.

[0009] Preferably, the Nth link of the active link is the head link; The end of the drive rod passes through the head link; The end of the drive rod has rotational freedom.

[0010] Preferably, the head link has a central hole; The end of the drive rod passes through the central hole; The end of the drive rod has rotational freedom in the central hole.

[0011] Preferably, it includes massaging the head; The massage head is connected to the head chain segment; The massage head is controlled by the angle change of the head chain segments to form a swinging motion.

[0012] Preferably, it includes a stimulation device; The stimulation device is disposed inside the massage head; The stimulation device generates a vibratory massage stimulation. Alternatively, the stimulation device can provide a retractable massage stimulation.

[0013] Preferably, the massage head has a straight rod-shaped structure; Alternatively, the massage head may be a curved rod-shaped structure; Alternatively, the massage head may be a spherical structure.

[0014] Preferably, the fixed link and the movable link have threading holes.

[0015] Preferably, the end face of the movable link facing the fixed link has a limiting flange; Furthermore, the limiting flange protrudes toward the fixed link along the circumference of the movable link.

[0016] Preferably, it includes a linear drive structure; The linear drive structure is connected to the drive component and the massage assembly, respectively. The linear drive structure is configured to drive the massage component to perform linear reciprocating motion.

[0017] This utility model also provides a massager, comprising: The chain massage structure as described in any one of the above technical solutions.

[0018] This utility model provides a chain-type massage structure and a massager. The beneficial effects of this utility model are as follows: In practical applications, this serpentine motion allows the chain structure to better adapt to the contours and curves of the human body, enhancing comfort and the overall experience. By using a helical path driven by a drive rod to move some of the movable chain links, and then gradually transmitting the motion to other movable chain links, the chain massage structure achieves a flexible, conforming serpentine motion trajectory, overcoming the stiff and unnatural movements found in traditional massage structures. Attached Figure Description

[0019] Figure 1 This is one of the perspective views of the chain massage structure proposed in this utility model; Figure 2 This is a front view of the chain massage structure proposed in this utility model; Figure 3 This is a second perspective view of the chain massage structure proposed in this utility model. Figure 4 This is a perspective view of the movable chain links in the chain-type massage structure proposed in this utility model; Figure 5 for Figure 4 A magnified view of the area at point E; Figure 6 for Figure 4 A magnified view of the area at point F; Figure 7 This is a schematic diagram of the drive component in the chain massage structure proposed in this utility model. Figure 8 This is a schematic diagram showing the connection between the fixed and movable links in the chain massage structure proposed in this utility model. Figure 9 for Figure 8 The front view of the structure shown; Figure 10 This is a schematic diagram of the movable chain link in the chain massage structure proposed in this utility model; Figure 11 This is a schematic diagram showing that the massage head and the head chain links in the chain massage structure proposed in this utility model have an included angle p of less than 90°. Figure 12 This is a schematic diagram showing that the massage head and the head chain links in the chain massage structure proposed in this utility model have an included angle p equal to 90°. Figure 13 This is a schematic diagram of the chain massage structure proposed in this utility model, in which the massage head is a spherical structure. Figure 14 This is a schematic diagram of the chain massage structure proposed in this utility model, in which the stimulation device is a vibration device. Figure 15 This is a schematic diagram of the chain massage structure proposed in this utility model, in which the stimulation device is a telescopic device. Figure 16 This is a schematic diagram of adding a linear drive structure to the chain massage structure proposed in this utility model. Figure 17 This is a cross-sectional view of the linear drive structure in the chain massage structure proposed in this utility model.

[0020] Explanation of reference numerals in the attached figures: 1. Drive assembly; 101. Drive component; 1011. Drive motor; 1012. Gearbox; 102. Drive rod; 2. Massage assembly; 201. Fixed link; 2011. Sinking groove; 202. Movable link; 2021. Hinge; 2022. Head link; 20221. Link structure; 20222. Center hole; 2023. Limiting flange; 2024. Support body; 3. Gap; 4. Axial clearance; 5. Massage head; 6. Stimulation device; 601. Vibration device; 602. Telescopic device; 7. Silicone layer; 8. Linear drive structure; 801. Rotating seat; 802. Spiral groove; 803. Displacement seat; 804. Sliding block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 17 As shown, the specific embodiments provided by this utility model are as follows: like Figures 1 to 10 As shown, the first embodiment of this utility model proposes a chain massage structure, including: Drive assembly 1 has a drive element 101 and a drive rod 102; The driving component 101 and the driving rod 102 are connected, and the driving rod 102 has a spiral structure; Massage component 2 has a fixed link 201 and multiple movable links 202; Each of the movable links 202 consists of a support body 2024 and a hinge portion 2021; The hinge portion 2021 is disposed on both sides of the support body 2024 in the circumferential direction; The support body 2024 is provided with a gap 3 for the drive rod 102 to pass through; Multiple movable links 202 are sequentially hinged through the hinge portion 2021 to form a chain structure; The drive rod 102 passes through the gap 3 of multiple movable links 202, and drives each movable link 202 to change its angle relative to the axis of the drive rod 102 by rotation, and the angle change is continuously transmitted between the movable links 202. In this embodiment, the core lies in the serpentine motion formed by the chain connection of each movable link 202. The drive rod 102 in the drive assembly 1 has a helical structure. The helical structure means that the shape of the drive rod 102 is a spiral extending along the axial direction, or an S-shape, or other similar shapes with continuous curved lines. The rotation of the drive rod 102 does not only act on one movable link 202, but also causes all movable links 202 to change angles sequentially. The cooperation between these movable links 202 forms a continuous transmission chain, so that the angle change of each movable link 202 is gradually transmitted to the next movable link 202, ultimately forming a continuous and smooth serpentine motion.

[0023] The force provided by the drive lever 102 is flexibly distributed throughout the entire moving chain, rather than concentrated at a single point or area. Because each moving link 202 has a certain degree of freedom and range of motion when changing angles, the chain as a whole exhibits a natural undulating effect, conforming to the curves of the human body even in intra-body applications. This serpentine transmission ensures that the massage component 2 maintains a smooth movement trajectory even during intra-body insertion, without compromising comfort due to insufficient rigidity or excessive stiffness.

[0024] Furthermore, the serpentine transmission relies on the angle transmission mechanism of each movable link 202. The drive rod 102, through its helical structure design, causes some movable links 202 to change angles, gradually affecting adjacent movable links 202, ultimately forming a serpentine motion trajectory throughout the structure. Specifically, when the drive rod 102 rotates, due to its unique helical path design, it first causes some movable links 202 to change angles. These initial angle changes in the movable links 202 are then gradually transmitted to the surrounding movable links 202, creating a natural "ripple" effect.

[0025] The formation of this serpentine motion relies on the gradual transmission between the movable links 202: when the drive rod 102 moves one movable link 202, the angle change of that movable link 202 affects the adjacent movable links 202, and the adjacent movable links 202 continue to transmit the change to the next movable link 202. In this way, the helical rotation of the drive rod 102 gradually expands within the chain structure, ultimately forming the smooth serpentine motion of the entire chain. The angle change of each movable link 202 is transmitted and harmonized layer by layer, avoiding abrupt movements and ensuring the smoothness and stability of the motion.

[0026] This gradual, serpentine motion offers significant benefits. First, because the angle change of the movable link 202 is gradual, the movement is more natural and continuous, allowing the chain massage structure to adapt to the natural curves of the human body and provide a soft and comfortable fit. Second, this gradual transmission effectively disperses the initial force of the drive rod 102, preventing excessive force on a single movable link 202, reducing structural wear, and extending the service life of the components.

[0027] In practical applications, this serpentine motion allows the chain structure to better adapt to the contours and curves of the human body upon insertion, providing a massage effect similar to squeezing and peristalsis, enhancing comfort and the overall experience. By driving the spiral path of the drive rod 102 to move some of the movable chain links 202, and then gradually transmitting the motion to other movable chain links 202, the chain massage structure achieves a flexible and conforming serpentine motion trajectory, overcoming the stiff and unnatural movements of traditional massage structures.

[0028] Furthermore, this chain-like serpentine motion exhibits a high degree of adaptability. Because the serpentine motion automatically adjusts its angle at each movable link 202, the entire structure can adapt to different spaces and curves according to the different needs or positions of the human body. The undulation of the movable links 202 provides a certain degree of massage, achieving a gentle squeezing effect. This characteristic makes the chain massage structure more flexible and comfortable in different insertion scenarios.

[0029] In summary, this embodiment achieves a natural serpentine motion through the coordinated transmission between the movable links 202, resulting in a flexible fit, uniform transmission, and smooth movement. The coordination between the movable links 202 not only enhances the comfort and stability of the movement but also ensures a more natural massage experience during insertion into the body.

[0030] Building upon the above, a fixed link 201 is further added, with end N1 of the fixed link 201 fixedly connected to the drive member 101, and the other end N2 chain-connected to a movable link 202. This is because the fixed link 201 forms a stable support between the drive member 101 and the movable link 202, ensuring that the power from the drive member 101 is stably transmitted to the movable link 202. This avoids swaying or offset that occurs when the drive member 101 directly drives the movable link 202, improving transmission stability. Furthermore, the stable connection point provided by the fixed link 201 ensures that the starting position of the chain (referring to the entire structure composed of multiple movable links 202) is not easily offset, allowing the serpentine motion to begin from a stable base point, resulting in a smoother and more continuous transmission effect.

[0031] Building upon the above, the width W1 of the gap 3 of the first movable link 202 is further increased in the direction away from the fixed link 201, making it larger than the width WN of the gap 3 of the remaining movable links 202. This differentiation aims to optimize the motion of the drive rod 102. Since the curved portion of the drive rod 102 has a large trajectory diameter during rotation, to ensure that the remaining movable links 202 can be smoothly driven by the drive rod 102 to form a serpentine motion, their gap 3 width WN must be smaller than the maximum trajectory diameter of the curved portion of the drive rod 102 during rotation. However, if the gap 3 width of the first movable link 202 is the same as WN, it will result in excessive resistance to the rotation of the drive rod 102.

[0032] Because the first movable link 202 is close to the helical starting point B of the drive rod 102, the initial driving force needs to overcome a large frictional force and contact resistance when the drive rod 102 starts to rotate. If the gap 3 width of the first movable link 202 is the same as that of the other movable links 202 (W1 = WN), this resistance will be further amplified, which may cause the drive rod 102 to have difficulty rotating, or even jam, seriously affecting the normal operation of the device.

[0033] To reduce the resistance of the first movable link 202 to the rotation of the drive rod 102, a common solution is to install the first movable link 202 at a position far from the helical starting point B of the drive rod 102, thus maintaining a sufficient distance between them. However, this adjustment introduces new problems: The axial clearance 4 between the drive rod 102 and the first movable link 202 increases. Excessive axial clearance 4 may cause the drive rod 102 to clamp the outer silicone layer during operation, increasing its wear risk and shortening the equipment's service life.

[0034] To address the aforementioned issues, appropriately increasing the gap 3 width W1 of the first movable link 202 can effectively reduce its resistance to the drive rod 102 and prevent jamming. This not only ensures smooth rotation of the drive rod 102 at the helical starting point B but also avoids the problem of excessive axial clearance 4 caused by increasing the installation distance.

[0035] By increasing the gap 3 width W1 of the first movable link 202, the problem of excessive initial movement resistance of the drive rod 102 is solved, and the hidden dangers of excessive axial gap 4 and damage to the outer silicone layer caused by traditional methods are avoided, thus achieving a dual improvement in the reliability and durability of the device.

[0036] Furthermore, in the direction away from the fixed link 201, the width W2 of the gap 3 of the second movable link 202 is equal to the width W1 of the gap 3 of the first movable link 202, and greater than the width WN of the gap 3 of the remaining movable links 202, which further enhances the smoothness and reliability of the movement of the drive rod 102 and optimizes the mechanical transmission effect of the entire system.

[0037] While increasing the gap 3 width W1 of the first movable link 202 can effectively reduce the resistance when the drive rod 102 rotates, if the gap 3 width of the second movable link 202 remains the same as the other movable links 202 (i.e., W2 = WN), a new resistance peak will be generated when the drive rod 102 bends and rotates to the second movable link 202. An excessively small gap 3 in the second movable link 202 will increase the frictional resistance of the drive rod 102. Sudden changes in resistance may lead to discontinuity in the movement of the drive rod 102, or even jamming, affecting the overall smoothness of the serpentine motion.

[0038] By designing the gap 3 width W2 of the second movable link 202 to be the same as the gap 3 width W1 of the first movable link 202, making it larger than the gap 3 width WN of the remaining movable links 202, the following problems can be significantly improved: The first and second movable links 202 form a buffer zone of consistent width, effectively reducing the resistance accumulation of the drive rod 102 near the helical initiation point. The gradient transition of gap 3 reduces abrupt changes in resistance and improves the continuity of the serpentine motion. The larger gap 3 width provides the drive rod 102 with sufficient degrees of freedom, ensuring that its curved portion rotates without restriction.

[0039] By designing the gap 3 width W2 of the second movable link 202 to be equal to the gap 3 width W1 of the first movable link 202, and making it larger than the gap 3 width WN of the remaining movable links 202, the mechanical compatibility between the drive rod 102 and the movable links 202 is further improved. This not only ensures the smooth rotation of the drive rod 102, but also significantly improves the smoothness of the serpentine motion and the overall reliability of the equipment, reflecting a meticulous consideration of the gradient mechanical characteristics of the motion system.

[0040] It should be noted that the support body 2024 is a sheet-like or plate-like structural component with a certain strength and rigidity. A gap 3 of a certain size is formed at the center of the support body 2024 to allow the drive rod 102 to pass through the gap 3, thereby driving multiple movable links 202 to form a serpentine movement.

[0041] It should be noted that the chain structure refers to a continuous structure formed by connecting multiple movable chain links 202 in sequence. The movable chain links 202 are flexibly connected by hinges 2021, which gives the overall structure a certain degree of flexibility and adaptability, and enables coordinated movement under the drive of the drive rod 102.

[0042] It should be noted that the drive rod 101 is divided into two segments. The first segment is a straight segment, used to connect with the drive component 101, and the second segment is a helical segment, which passes through the gaps 3 of the multiple supports 2024. The end of the straight segment connects to the beginning of the helical segment, and this connection point is the helical starting point B. The helical starting point B marks the transition point of the drive rod 101 from the straight segment to the helical segment, and is the starting position where the drive rod 101 enters the helical path and begins to drive the chain structure motion.

[0043] In one specific embodiment, the drive rod 102 is made of a rigid material, which ensures that the drive rod 102 has sufficient stability and reliability when transmitting power.

[0044] Specifically, rigid materials possess excellent bending resistance, enabling them to maintain a stable shape and strength during operation, thereby effectively transmitting driving force and ensuring precise and consistent chain movement. The rigid drive rod 102 can stably drive the movable chain link 202 to produce angular changes, avoiding the driving force attenuation and deformation that may be caused by flexible materials.

[0045] Furthermore, the rigid drive rod 102 will not bend or twist during transmission, ensuring that the movement trajectory of each movable link 202 is stable and precise, reducing movement errors caused by offset, and making the serpentine movement of the chain structure smoother and more accurate.

[0046] In another specific embodiment, the drive rod 102 is made of a flexible material, which can further enhance the adaptability and comfort of the chain massage structure. The flexible drive rod 102 has a certain elastic deformation capability when transmitting power, allowing the massager to better conform to the curves of the human body and bring a gentler massage experience.

[0047] Specifically, the flexible drive rod 102 can bend moderately with the swing of the movable link 202 during transmission, which can more naturally conform to the concave and convex curves of the human body, especially in massage applications that penetrate the body or in complex areas, bringing a more comfortable experience.

[0048] Furthermore, the elasticity of the flexible material ensures that the drive rod 102 does not generate excessive thrust when driving the movable link 202, resulting in a gentler massage sensation, suitable for shallow massage.

[0049] Furthermore, the drive rod 102 employs a structure combining rigidity and flexibility. Specifically, while the drive rod 102 is generally rigid, elastic structures are incorporated at the crests of the spiral path. This allows the drive rod 102 to provide both rigid stability and flexible cushioning and adaptability at critical points during power transmission. In essence, the overall structure of the drive rod 102 remains rigid, ensuring sufficient strength and stability during transmission, allowing the chain to maintain accurate and reliable force transmission. The elastic structures at the crests of the spiral path allow the drive rod 102 to bend or adjust flexibly at these critical points. The flexible structures provide a cushioning effect at the crests, thereby enhancing the naturalness and smoothness of the serpentine motion and adapting to the undulations of the human body's curves.

[0050] Furthermore, when the flexible-rigid drive rod 102 transmits the serpentine motion, the elastic structure can absorb part of the driving force whenever it reaches the crest of the wave, making the amplitude of the serpentine motion smoother, reducing the angle change of each moving link 202, and creating a more natural wave effect.

[0051] In one specific embodiment, the drive component 101 is composed of a drive motor 1011 and a gearbox 1012. The drive motor 1011 provides rotational power, while the gearbox 1012 is responsible for adjusting and transmitting power, enabling the entire chain massage structure to achieve precise and stable serpentine motion. Through the combination of the drive motor 1011 and the gearbox 1012, the drive component 101 achieves significant improvements in power output, control precision, and transmission efficiency.

[0052] In one specific embodiment, the end N1 of the fixed link 201 refers to its end face facing the drive member 101, which is a plane, while the end N2 refers to the end face away from the drive member 101.

[0053] Based on the above, in order to ensure that the width W of the through gap 3 can reduce the motion interference between the drive rod 102 and the movable link 202, and to ensure a smoother overall operation of the structure, the width W of the gap 3 is now linked to the key parameters of the drive rod 102 (including pitch P, body diameter D1, and lead angle θ). This ensures the smooth movement of the drive rod 102 in the chain (specifically, the entire structure composed of multiple movable links 202), while providing sufficient space for the serpentine transmission of the drive rod 102.

[0054] Based on this, the compensation width for radial motion is increased. During the serpentine motion of the drive rod 102, due to the lead angle θ of the helical path, the drive rod 102 will generate a certain radial displacement (the fluctuation of the serpentine motion). Therefore, the maximum motion trajectory diameter D1 can be expressed by the following formula: D1=D2+2*(P*tan(θ)). Where D2 is the body diameter of the drive rod 102, and (P*tan(θ)) represents the maximum radial displacement of the drive rod 102.

[0055] Combining the base width and the radial compensation width, we can derive the optimal solution formula for the through gap 3: W = D2 + k * D1, where k is an adjustment coefficient used to adjust the width according to the needs of different moving links 202. Typically, k can take a larger value in the initial moving links 202 of the chain to provide a wider gap 3, while k can take a smaller value in the end moving links 202 of the chain to reduce the gap 3.

[0056] Replacing D1 with the result of the above formula, we get W=D2+k*(D2+2*P*tan(θ)); The radial motion compensation k*(D2+2*P*tan(θ)) provides sufficient space for the serpentine motion of the drive rod 102. This width allows the drive rod 102 to rotate and undulate smoothly in each link without interfering with the smooth movement of the chain due to insufficient space.

[0057] Among them, for the adjustment coefficient k, a larger gap 3 is usually required at the initial moving link 202 of the chain to cope with the change of the initial angle, so a larger value can be taken, such as k=1.2 to 1.5; while at the end of the chain, it can be appropriately reduced, for example, k=1.0, so that the control of the end moving link 202 is more precise.

[0058] This balances the basic passability of the drive rod 102 with the radial space requirements of the serpentine motion, allowing the chain to maintain a compact gap width design while satisfying the degrees of freedom of the drive rod 102, which helps to ensure smooth transmission and precise control of the overall structure.

[0059] like Figure 9As shown, the second embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, the distance between chain node A and its adjacent chain node C is H, satisfying the following relationship: H / 2 + W1 = D1.

[0060] In this embodiment, the sum of the distance between chain node A and its adjacent chain node C and the initial gap 3 width W1 is set to be equal to the maximum movement trajectory diameter of the drive rod 102, ensuring that the drive rod 102 obtains sufficient space in the first movable link 202 to achieve smooth transmission.

[0061] This design ensures that the drive rod 102 can smoothly drive the first movable link 202 to change angles, thus providing a stable starting point for the chain's serpentine movement.

[0062] Specifically, the distance between chain node A and its adjacent chain node C is half of H, providing a rotational buffer space for the drive rod 102 in the initial movable link 202. This buffer space allows the drive rod 102 to gradually apply torque in the early stage of movement, so that the angle change of the movable link 202 can be transmitted smoothly, avoiding the jamming or shaking caused by excessive sudden torque transmission, and improving the overall transmission stability.

[0063] On the other hand, during the initial transmission phase of the drive rod 102, the design that satisfies H / 2 + W1 = D1 provides ample space for movement, ensuring that the drive rod 102 can smoothly drive the first movable link 202 without being excessively restricted by space. This design reduces the risk of jamming and interference, ensuring a smooth start to the chain movement.

[0064] The third embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, the movable chain link 202 includes hinge portions 2021 disposed on both sides; Each of the hinged parts 2021 includes two chain nodes, which are used to hinge the movable link 202 to two adjacent movable links 202 to form a chain structure.

[0065] In this embodiment, hinge portions 2021 are provided on both sides of the movable link 202. Each hinge portion 2021 includes two chain nodes for hinged connection of the movable link 202 with two adjacent movable links 202, thereby forming a more flexible chain structure. This design not only ensures the stability of the chain but also significantly improves the flexibility and fit of the chain massage structure.

[0066] Specifically, each movable link 202 is connected to an adjacent movable link 202 via two hinges 2021. The movable links 202 within the hinges 2021 allow for angular adjustments between the movable links 202 in multiple dimensions. This hinge structure enables the chain (referring to the entire assembly of multiple movable links 202) to move flexibly in multiple planes perpendicular to the driving direction, thereby achieving complex serpentine transmission and ensuring a natural and smooth transmission process.

[0067] Furthermore, since each hinge 2021 contains two chain nodes, the movable chain links 202 have a certain degree of rotational freedom, which can gradually buffer the force transmitted by the drive rod 102. This double-chain node hinge design effectively disperses stress concentration during the transmission process, allowing the chain to maintain a smooth transmission during movement, avoiding excessive stretching or compression of the chain, and improving the stability of the structure.

[0068] Therefore, the dual-chain hinge design gives the chain greater flexibility, generating a more natural serpentine motion. This design is particularly suitable for complex motion paths, better adapting to the natural curves of the human body and enhancing the fit during massage.

[0069] Because each movable link 202 is connected to its adjacent movable link 202 via a double-link node, the motion transmitted by the drive rod 102 is more precise and consistent, avoiding loosening or delay during movement. The stable connection of the double-link node ensures the balance of the chain during transmission, making the motion transmission more continuous and smooth.

[0070] In one specific embodiment, the hinge portion 2021 is a pin seat, and adjacent movable links 202 form a hinge at the pin seat.

[0071] like Figures 8 to 10 As shown, the fourth embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, the end N2 of the fixed chain link 201 has a recessed groove 2011 that is recessed in the direction toward the drive member 101. The starting point B of the spiral of the drive rod 102 is located at least at the bottom surface of the settling tank 2011.

[0072] In this embodiment, by providing a recessed groove 2011 at the end N2 of the fixed link 201, which is concave in the direction toward the drive member 101, the starting point B of the helix of the drive rod 102 is located at least at the bottom surface of the groove 2011. This design helps to optimize the spatial layout and transmission effect between the drive rod 102 and the fixed link 201.

[0073] Specifically, the concave design of the sink 2011 provides additional space for the starting point of the helical line of the drive rod 102, allowing it to be embedded more deeply into the fixed link 201. This ensures that the drive rod 102 has sufficient space for helical motion during the initial rotation phase, avoiding interference with the fixed link 201.

[0074] On the other hand, this allows the drive rod 102 to begin applying driving force closer to the fixed link 201. This helps improve the transmission efficiency of driving force, ensuring that the first movable link 202 can respond to the rotation of the drive rod 102 in a timely and smooth manner, thus enhancing the starting effect of the serpentine motion.

[0075] The recess 2011 provides a buffer space, reducing the stress concentration exerted on the fixed link 201 by the drive rod 102 during initial drive. By setting the recess 2011 within the fixed link 201, the effect of the rotation of the drive rod 102 on the fixed link 201 is effectively dispersed, reducing wear and potential structural damage, and extending the service life of the equipment.

[0076] By providing a recessed groove 2011 at the end of the fixed link 201 facing the drive member 101, and placing the starting point of the helix of the drive rod 102 at least at the bottom surface of the groove 2011, this embodiment effectively optimizes the fit between the drive rod 102 and the fixed link 201. This design not only improves the initial driving effect of the drive rod 102 and ensures the smooth transmission of the serpentine motion, but also enhances the stability and durability of the chain massage structure, further improving the overall performance of the device.

[0077] like Figures 4 to 10 As shown, the fifth embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, the Nth link of the movable link 202 is the head link 2022; The end of the drive rod 102 passes through the head link 2022; The end of the drive rod 102 has a rotational degree of freedom.

[0078] In this embodiment, by designing the Nth link of the movable link 202 as the head link 2022 and allowing the end of the drive rod 102 to pass through the head link 2022, while giving the end of the drive rod 102 a degree of rotational freedom, the functionality and flexibility of the chain massage structure are further enhanced.

[0079] Specifically, the end of the drive rod 102 is given rotational freedom within the head link 2022, allowing it to rotate freely within the head link 2022. The design of this head link 2022 enables it to adapt to different massage needs, and users can replace the massage heads 5 with different shapes or functions according to their preferences.

[0080] For example, other functional modules, such as vibrators and heating elements, can be added to the head link 2022 to enhance the product's versatility.

[0081] Furthermore, the head link 2022 oscillates under the drive of the drive rod 102, achieving a massage effect similar to hand kneading. Therefore, different massage heads, such as spherical, pointed, and roller heads, can be installed on the head link 2022 to achieve combinations of various massage techniques.

[0082] This embodiment enriches the functionality of the massage structure by setting a head link 2022 at the end of the chain massage structure, and allowing the end of the drive rod 102 to pass through the head link 2022 and have rotational freedom, thus realizing multi-dimensional massage techniques. This design not only enhances the massage effect and improves the flexibility and adaptability of the device, but also optimizes the structure, extends its service life, and provides users with a more comfortable and personalized massage experience.

[0083] In one specific embodiment, the end face of the head link 2022 facing the drive member 101 has link structures 20221 located on both sides thereon, so as to form a hinge with the adjacent movable link 202.

[0084] The sixth embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, the head chain link 2022 has a central hole 20222; The end of the drive rod 102 passes through the central hole 20222; The end of the drive rod 102 has a rotational degree of freedom in the central hole 20222.

[0085] Specifically, the end of the drive rod 102 has a certain degree of free rotation in the central hole 20222, which allows the drive rod 102 to drive the head link 2022 to produce a swinging effect. Since the head link 2022 itself does not rotate, it is only affected by the angle change of the adjacent moving link 202. Therefore, the head link 2022 can swing naturally with the movement of the chain as a whole.

[0086] The design of the center hole 20222 is not completely open, but rather constrained by an angle. When the angle formed between the end of the drive rod 102 and the center hole 20222 reaches a certain value, the drive rod 102 interferes with the edge of the center hole 20222, preventing the drive rod 102 from rotating further. This constraint limits the angular change of the head link 2022 to a certain range, thereby avoiding excessive oscillation or unintended movement.

[0087] When the angle between the drive rod 102 and the center hole 20222 of the head link 2022 reaches the interference critical value, the movement space of the head link 2022 is restricted. This constraint is transmitted to the entire chain, limiting the range of motion of the moving links 202 in the chain. This restriction effect on chain movement helps maintain the overall structural stability of the chain and prevents excessive swaying or loss of control during movement.

[0088] Because the central hole 20222 constrains the rotation angle of the drive rod 102, the swinging motion of the head link 2022 is limited to a certain range. This design prevents the head link 2022 from swinging excessively during movement, thereby ensuring the stability of the head link 2022's movement, avoiding unexpected angular deviations, and making the movement more controllable.

[0089] When the angle of the drive rod 102 is restricted, the transmission between adjacent links in the chain is also limited to a specific range. This constraint effectively prevents excessive angle changes in the chain, avoids instability or loss of control during chain movement, and ensures a more stable chain transmission process.

[0090] The restraining effect makes the chain more controlled during movement, avoiding safety risks caused by excessive swinging or the moving link 202 going out of the expected range of motion. Users can enjoy a smoother and more comfortable massage experience without being affected by unexpected structural movements.

[0091] The central hole 20222 constrains the angle of the drive rod 102, making the swing range of the head link 2022 precisely controllable and providing uniform massage pressure within a preset angle range. This controllability ensures the continuity and precision of the massage movements, helping to provide a massage effect that better meets the needs of the human body and improve the user experience.

[0092] This embodiment achieves the rotational freedom of the end of the drive rod 102 through the design of the central hole 20222 of the head link 2022, while constraining the angular changes of the drive rod 102. This design ensures that the head link 2022 can swing with the chain while limiting excessive chain movement, making the chain more stable during transmission. The constraint of the central hole 20222 not only improves the durability and safety of the structure, but also makes the massage movements more precise and controllable, optimizing the user's overall massage experience.

[0093] In one specific embodiment, the area of ​​the central hole 20222 is much smaller than the area of ​​the gap 3 through which the movable link 202 passes. This is because the smaller area of ​​the central hole 20222 helps control the degree of freedom of movement of the drive rod 102 in the head link 2022, preventing unnecessary swaying of the head link 2022 due to an excessively large hole. This design ensures greater stability of the head link 2022 during oscillation, thereby enhancing the overall structural stability.

[0094] Furthermore, the smaller center hole 20222 restricts the radial displacement of the drive rod 102, preventing excessive swaying of the head link 2022 during serpentine transmission. This restriction prevents unpleasant movement amplitude during actual use, making the movement process smoother and more ergonomic.

[0095] In summary, the area of ​​the central hole 20222 is much smaller than the area of ​​the through gap 3, ensuring that the head link 2022 can maintain stability and accurately transmit motion during transmission, thus improving the overall stability and service life of the massager.

[0096] The seventh embodiment of this utility model proposes a chain massage structure, which, based on the previous embodiment, includes a massage head 5; The massage head 5 is connected to the head chain 2022; The massage head 5 is controlled by the angle change of the head chain 2022 to form a swinging motion.

[0097] In this embodiment, the chain massage structure adds a massage head 5 to the previous embodiment, which is directly connected to the head chain link 2022. With this design, the massage head 5 can swing as the angle of the head chain link 2022 changes, thereby providing a multi-angle massage effect.

[0098] Specifically, the massage head 5 is directly connected to the head link 2022, so any angular change in the head link 2022 will be synchronously transmitted to the massage head 5. As the head link 2022 swings, the massage head 5 generates a corresponding swinging motion. This swinging motion is achieved through a serpentine transmission controlled by the chain drive system and the drive rod 102, thus allowing the massage head 5 to naturally adapt to the body's curves and achieve a gentle massage effect.

[0099] The angle change of the head link 2022 is limited by the chain structure and controlled by the drive rod 102, so the swinging motion of the massage head 5 is achieved within a certain angle range, preventing excessive or uneven swinging. Driven by the angle of the head link 2022, the massage head 5 maintains synchronization with the chain movement, ensuring that the swinging of the massage head 5 is continuous and smooth, providing a consistent massage force.

[0100] The massage head 5 dynamically conforms to the area of ​​use as the head chain 2022 swings, and through continuous angle adjustments, it better adapts to the curves of the human body, enhancing massage comfort. The swinging motion allows the massage head 5 to act on the massage area from multiple angles, providing comprehensive stimulation and achieving a deep massage effect.

[0101] This embodiment significantly enhances the fit, comfort, and controllability of the massage effect by adding a massage head 5 to the chain massage structure and controlling its oscillating motion according to the angle changes of the head chain links 2022. The oscillation of the massage head 5 not only achieves multi-angle massage stimulation but also brings a gentle and continuous massage experience.

[0102] In one specific embodiment, the length of the massage head 5 can be designed to account for 10% to 30% of the total chain length, depending on the expected massage needs and user comfort. This proportion is designed so that by appropriately controlling the length of the massage head 5 within a certain proportion of the chain length, it can ensure that the massage head 5 has sufficient coverage when in contact with the human body, while not being too long and affecting the transmission effect.

[0103] If the massage head 5 is too long, it will reduce the flexibility of the chain structure, thus affecting the transmission of the serpentine motion in each active link 202. Keeping the length of the massage head 5 within the range of 10% to 30% helps the overall chain flexibility, ensuring that it can better conform to the curves of the human body during massage.

[0104] Furthermore, the massage head 5 has a moderate length, which prevents the front end from becoming excessively heavy or experiencing uneven force during operation, ensuring the balance and stability of the structure during transmission. The moderate length of the massage head 5 allows for precise control of the pressure and amplitude of the massage area, providing users with a gentle yet precise massage experience.

[0105] like Figures 11 to 15 As shown, the eighth embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, includes a stimulation device 6; The stimulation device 6 is disposed inside the massage head 5; The stimulation device 6 provides vibrational massage stimulation. Alternatively, the stimulation device 6 can provide a retractable massage stimulation.

[0106] In this embodiment, the chain massage structure adds a stimulation device 6 to the previous embodiment, and this stimulation device 6 is disposed inside the massage head 5. Through this design, the stimulation device 6 can provide different types of stimulation during the massage process, further enriching the massage effect. The specific stimulation methods of the stimulation device 6 include vibration or extension, and these different stimulation methods bring a diverse massage experience.

[0107] Specifically, the stimulation device 6 is a vibration device 601 (e.g., a vibration motor), which generates high-speed, small-amplitude reciprocating motion inside the massage head 5, causing the massage head 5 to vibrate slightly. Alternatively, the stimulation device 6 is a telescopic device 602 (e.g., a telescopic motor), which drives the massage head 5 to telescopically move within a certain range via an internal mechanical or pneumatic system (at this time, the massage head 5 and the head chain 2022 form an elastic connection to allow the massage head 5 to perform telescopic displacement), simulating a pressing or kneading effect.

[0108] This embodiment achieves vibration or stretching stimulation by introducing a stimulation device 6 inside the massage head 5 of the chain massage structure. This design not only enhances the diversity and fit of the massage, but also enables the massage device to meet the massage needs of different areas, providing a personalized and three-dimensional massage experience.

[0109] The ninth embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, the massage head 5 and the head chain link 2022 form an angle p; Furthermore, the included angle p ranges from 30° to 90°.

[0110] In this embodiment, by setting an angle of 30° to 90° between the massage head 5 and the head link 2022, the massage head 5 can effectively adapt to different body areas at different angles, thereby providing a more comfortable and precise massage experience.

[0111] Specifically, the 30° to 90° angle design provides the massage head 5 with flexible angle options, allowing it to better conform to the natural curves of the human body. The key to a massager is its ability to move smoothly through complex physiological structures, and this angle design effectively enhances the adaptability of the massage head 5 in different body positions. An angle less than 90° ensures that the massage head 5 remains smooth and unobtrusive during movement, avoiding discomfort caused by angles that are too large or too small, and providing users with a gentle experience.

[0112] In summary, the smaller 30° angle provides a gentle massage experience, while the larger 90° angle is suitable for deeper pressure and stimulation, effectively enhancing the flexibility and control of the massage head 5 to adapt to different usage needs. By adjusting to a larger angle, the massage head 5 can directly target specific areas, suitable for users seeking a deeper experience.

[0113] On the one hand, the 30° to 45° angle design, combined with the oscillating motion of the massage head 5, creates a comfortable and smooth massage experience. The tenth embodiment of this utility model proposes a chain-type massage structure, and based on the previous embodiment, the massage head 5 is a straight rod-shaped structure; Alternatively, the massage head 5 may be a curved rod-shaped structure; Alternatively, the massage head 5 may be a spherical structure.

[0114] like Figures 12 to 13 As shown, in this embodiment, by designing the massage head 5 in different shapes, including straight rods, curved rods, and spherical structures, the chain massage structure can adapt to different massage needs during use, providing users with a diverse massage experience. The different shapes of the massage head 5 bring their own unique effects and advantages, making the device more adaptable and able to meet users' personalized preferences.

[0115] Specifically, the straight rod-shaped structure gives the massage head 5 a straight line shape, which is simple and direct. The straight rod-shaped structure can more directly and deeply penetrate the target area, making it suitable for users who need a deeper massage.

[0116] The curved rod-shaped structure gives the massage head 5 a certain curvature, and the bending angle can be designed according to the natural curve of the human body.

[0117] The spherical massage head 5 is shaped like a sphere, with a smooth surface and a small contact area. This spherical structure allows the massage head 5 to concentrate pressure on a single point, generating strong, targeted stimulation, suitable for users who require deep, localized massage.

[0118] The massage heads 5 come in various shapes to accommodate a wide range of massage needs, from superficial to deep, and from gentle to intense. Users can choose different shapes of massage heads 5 according to their personal preferences and needs to achieve a personalized massage experience.

[0119] Offering a variety of massage head shapes enhances the device's versatility, allowing the chain massage structure to adapt to different body structures and physiological curves for a better fit to the area being used.

[0120] In this embodiment, by providing massage heads 5 in straight, curved, and spherical shapes, the chain massage structure can meet diverse massage needs. The different shapes of the massage heads 5 are designed for specific massage experiences, adapting to different stimulation requirements and human anatomy. This design not only enhances the flexibility and applicability of the massager but also increases user personalization options, providing a richer and more comfortable massage experience.

[0121] The eleventh embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, the fixed chain link 201 and the movable chain link 202 have threading holes.

[0122] In this embodiment, by providing wiring holes on the fixed link 201 and the movable link 202, the chain massage structure can be routed with wires, air tubes, or other transmission devices through the wiring holes, providing necessary power support for the internal stimulation device 6, power supply, and other components. The wiring hole design makes the wiring of the device neater and safer, and avoids external lines interfering with the flexible movement of the massage structure.

[0123] By arranging the transmission line inside the movable link 202, external line interference is effectively avoided, thus improving the free swing and flexibility of the chain massage structure and enhancing the overall stability and durability of the equipment.

[0124] The wire-passing holes ensure that the wiring is well protected inside the movable link 202, preventing damage from friction and pulling during equipment operation. This protective design extends the service life of transmission devices such as wires and pipes, and reduces maintenance frequency.

[0125] Furthermore, the internal threading design avoids tangling or jamming of external wires, ensuring that the movable link 202 is not restricted by external wires when swinging or rotating, providing a more stable massage experience.

[0126] In one specific embodiment, threading holes are formed on both sides of the movable link 202.

[0127] The twelfth embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, the end face of the movable chain link 202 facing the fixed chain link 201 has a limiting flange 2023; Furthermore, the limiting flange 2023 protrudes toward the fixed link 201 along the circumference of the movable link 202.

[0128] In this embodiment, a limiting flange 2023 is designed on the end face of each movable link 202, protruding towards the end face of the adjacent movable link 202. The limiting flange 2023 can directly abut against the end face of the adjacent movable link 202. On the one hand, this design ensures stable linkage between the movable links 202; on the other hand, the presence of the limiting flange 2023 restricts the angular change between the movable links 202, avoiding excessive angular deviation of the movable links 202 during swinging.

[0129] Specifically, on the one hand, the limiting flange 2023 is designed to abut against each other on the end faces of adjacent movable links 202, forming a tightly connected structure. This allows each movable link 202 to smoothly drive adjacent movable links 202 during movement, thereby ensuring the stable linkage of the entire chain massage structure. The abutment of the limiting flange 2023 ensures that the angle change of one movable link 202 is transmitted to the next movable link 202. This linkage design effectively avoids independent movement between movable links 202, allowing the massage structure to maintain continuous oscillation or transmission.

[0130] On the other hand, the presence of the limiting flange 2023 physically restricts the angular changes between adjacent movable links 202, ensuring that each movable link 202 can only swing within a reasonable range. This design avoids excessive angular deviation between movable links 202, thus ensuring the stability of the chain. Limiting the angular changes of movable links 202 can prevent structural stress concentration caused by excessive angular swing, reduce wear between movable links 202, and at the same time prevent excessive movement of the massage head 5, preventing discomfort or accidental injury to surrounding tissues.

[0131] Because the limiting flange 2023 restricts excessive angle changes, the chain can maintain a uniform angle transmission when swinging, ensuring that the massage head 5 fits the massage area at an appropriate angle, providing a uniform and consistent massage effect.

[0132] like Figure 16 and Figure 17 As shown, the thirteenth embodiment of this utility model proposes a chain massage structure, and based on the previous embodiment, it includes a linear drive structure 8; The linear drive structure 8 is connected to the drive component 101 and the massage component 2 respectively; The linear drive structure 8 is configured to drive the massage component 2 to perform linear reciprocating motion.

[0133] In this embodiment, the linear drive structure 8 specifically includes a rotating seat 801. One end of the rotating seat 801 is connected to the drive rod 102, and the other end is connected to the drive member 101. The rotating seat 801 has a closed spiral groove 802 on its circumferential wall. A displacement seat 803 is slidably sleeved on the circumferential wall of the rotating seat 801. A sliding block 804 coupled to the spiral groove 802 is formed on the inner wall of the displacement seat 803. The fixed link 201 of the massage assembly 2 is connected to the displacement seat 803. When the drive member 101 drives the rotating seat 801 to rotate, the sliding block 804 reciprocates within the spiral groove 802, thereby causing the fixed link 201 and the movable link 202 of the massage assembly 2 to reciprocate linearly, thus improving the massage stimulation sensation.

[0134] like Figures 14 to 15 As shown, the fourteenth embodiment of this utility model proposes a massager, comprising: The chain massage structure as described in any of the above embodiments.

[0135] This invention discloses a massager that not only includes the chain massage structure as described in any of the above embodiments, but also adds a silicone layer 7 to the outside of the chain massage structure. The encapsulation design of the silicone layer 7 allows the massager to maintain structural stability while providing a softer and more comfortable touch, thereby significantly improving the user's massage experience.

[0136] The silicone layer 7 covers the outside of the chain massage structure, providing the massager with a soft, skin-friendly feel. Compared to the exposed chain structure, the silicone layer 7 can contact the skin more gently, avoiding the discomfort caused by the hard structure, and is especially suitable for more sensitive massage areas.

[0137] Furthermore, silicone material has good flexibility and can naturally deform with the movement of the massager, allowing it to better conform to the curves of the human body.

[0138] In the description of the embodiments of this utility model, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0139] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chain massage structure, characterized by, include: A drive assembly, comprising a drive element and a drive rod; The driving component and the driving rod are connected, and the driving rod has a spiral structure; The massage component has fixed links and multiple movable links; Each of the aforementioned movable links consists of a support body and a hinge. The hinge portion is provided on both sides of the support body in the circumferential direction; The support body is provided with a gap for the drive rod to pass through; Multiple movable links are sequentially hinged together via the hinge portion to form a chain structure; One end N1 of the fixed link is fixedly connected to the drive member, and the other end N2 is hinged to a movable link. In the direction away from the fixed link, the width W1 of the gap of the first movable link is greater than the width WN of the gap of the remaining movable links.

2. The chain massage structure according to claim 1, characterized in that, In the direction away from the fixed link, the width W2 of the gap of the second movable link is equal to the width W1 of the gap of the first movable link, and is greater than the width WN of the gaps of the remaining movable links.

3. The chain massage structure according to claim 1 or 2, characterized in that, In the direction away from the fixed link, the following condition is satisfied: D1>WN≥D2; Wherein, D1 is the diameter of the maximum motion trajectory formed by the drive rod when it rotates in the curved part, and D2 is the diameter of the drive rod body.

4. The chain massage structure according to claim 3, characterized in that, The hinge point between the fixed link and the first movable link is link node A, and the other hinge point of the first movable link is link node C. The distance between link node A and link node C is H, satisfying the following relationship: H / 2 + W1 = D1.

5. The chain massage structure according to claim 1, characterized in that, Each of the hinged sections includes two chain nodes, which are used to hinge the movable link to two adjacent movable links to form a chain structure.

6. The chain massage structure according to claim 1, characterized in that, The Nth link of the active link is the head link; The end of the drive rod passes through the head link; The end of the drive rod has rotational freedom.

7. The chain massage structure according to claim 6, characterized in that, The head link has a central hole; The end of the drive rod passes through the central hole; The end of the drive rod has rotational freedom in the central hole.

8. The chain massage structure according to claim 7, characterized in that, Including head massage; The massage head is connected to the head chain segment; The massage head is controlled by the angle change of the head chain segments to form a swinging motion.

9. The chain massage structure according to claim 8, characterized in that, Including stimulation devices; The stimulation device is disposed inside the massage head; The stimulation device generates a vibratory massage stimulation. Alternatively, the stimulation device can provide a retractable massage stimulation.

10. The chain massage structure according to claim 9, characterized in that, The massage head has a straight rod-shaped structure; Alternatively, the massage head may be a curved rod-shaped structure; Alternatively, the massage head may be a spherical structure.

11. The chain massage structure according to claim 1, characterized in that, The fixed link and the movable link have thread holes.

12. The chain massage structure according to claim 1, characterized in that, The end face of the movable link facing the fixed link has a positioning flange; Furthermore, the limiting flange protrudes toward the fixed link along the circumference of the movable link.

13. The chain massage structure according to claim 3, characterized in that, Including linear drive structures; The linear drive structure is connected to the drive component and the massage assembly, respectively. The linear drive structure is configured to drive the massage component to perform linear reciprocating motion.

14. A massager characterized by comprising: include: The chain massage structure as described in any one of claims 1 to 13 above.

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