Massager

Abstract

The invention discloses a massager, and relates to the technical field of therapeutic massage products, the massager comprises an elastic soft rubber sleeve, a driving assembly, a telescopic assembly and a plurality of expansion blocks, the elastic soft rubber sleeve forms an external coating layer, and a deformable massage cavity is defined in the inner side of the elastic soft rubber sleeve; the driving assembly is used for generating reciprocating rectilinear motion in the axis direction. The telescopic assembly is connected with the driving end of the driving assembly and can do reciprocating rectilinear motion in the axis direction along with the driving assembly. The multiple expansion blocks are annularly arranged on the periphery of the telescopic assembly, one end of each expansion block is rotationally connected with the inner wall of the elastic soft rubber sleeve, a linkage transmission mechanism is arranged between the other end of each expansion block and the telescopic assembly, and the linkage transmission mechanism is used for converting axial movement of the telescopic assembly into radial swing of the expansion blocks; wherein the elastic soft rubber sleeve covers the expansion block and generates radial deformation along with the movement of the expansion block, so that when the driving assembly drives the massage cavity, the massage cavity periodically expands and contracts in the radial direction.

Description

Technical Field

[0001] This invention relates to the field of health massage products, and in particular to a massager. Background Technology

[0002] In today's fast-paced life, people face various pressures, leading to an increased need for relaxation and physical soothing. Massage, as an effective relaxation method, has been widely accepted and applied in daily life.

[0003] In related technologies, most existing massage devices only have linear extension or vibration functions, which are relatively simple and cannot provide users with a rich and diverse massage experience. Moreover, although traditional linear extension massagers can provide a certain massage effect, they cannot produce a gradually increasing pressure experience from the outside to the inside. This makes the massage lack a sense of layering and progressive enhancement, and cannot meet the personalized needs of different users for massage methods. Summary of the Invention

[0004] The main objective of this invention is to provide a massager that enhances the comfort and sophistication of the massage, thereby meeting the personalized needs of different users for massage methods.

[0005] To achieve the above objectives, the present invention provides a massager comprising: An elastic soft rubber sleeve forms an outer covering layer, the inner side of which defines a deformable massage cavity; Drive components are used to generate reciprocating linear motion along the axial direction; The telescopic component is connected to the drive end of the drive component and is capable of reciprocating linear motion along the axial direction with the drive component. Multiple expansion blocks are arranged around the outer periphery of the telescopic assembly. One end of each expansion block is rotatably connected to the inner wall of the elastic soft rubber sleeve, and the other end is provided with a linkage transmission mechanism between it and the telescopic assembly. The linkage transmission mechanism is used to convert the axial movement of the telescopic assembly into the radial swing of the expansion block. The elastic soft rubber sleeve covers the expansion block and undergoes radial deformation as the expansion block moves, so that the massage cavity periodically expands and contracts in the radial direction when the drive assembly is driven.

[0006] In one embodiment, the linkage transmission mechanism is configured to enable each expansion block to oscillate radially while simultaneously sliding relative to the circumference, so that the elastic soft rubber sleeve can form circumferential frictional sliding while deforming radially.

[0007] In one embodiment, the thickness of the elastic soft rubber sleeve is set in zones along the radial direction, where the thickness of the region corresponding to the expansion block is D1, the thickness of the other regions is D2, and D1 < D2, so as to achieve a greater outer layer deformation amount and a flexible wrapping feeling during the radial expansion and circumferential sliding processes.

[0008] In one embodiment, a limiting portion is formed at one end of the expansion block away from the driving component, and an anti - detachment portion is formed at one end of the telescopic component away from the driving component. The limiting portion is used to limit the radial swing stroke of the expansion block, and the anti - detachment portion is used to prevent the expansion block from detaching from the telescopic component.

[0009] In one embodiment, the linkage transmission mechanism includes a plurality of grooves and a plurality of top blocks. The grooves are formed on one side of each expansion block facing the telescopic component, and a plurality of the top blocks are arranged at intervals on the outer peripheral wall of the telescopic component. Each top block is received in one of the grooves and abuts against the bottom wall of the groove. In the extending direction of the expansion block, the cross - sectional area of the bottom wall of the groove gradually increases from the end close to the driving component to the end far from the driving component.

[0010] In one embodiment, the massager includes a gearbox, a driving rod, a dialing block, and a fixed sleeve. The output end of the driving component is in transmission connection with the gearbox, the driving rod is in transmission connection with the output end of the gearbox, the fixed sleeve is sleeved on the driving rod and connected to the gearbox, the telescopic component is sleeved on the fixed sleeve, the dialing block can movably pass through the fixed sleeve and is in transmission connection with the driving rod. The driving component drives the driving rod to rotate, so that the dialing block drives the telescopic component to move linearly back and forth, realizing a compact mechanism with linear output.

[0011] In one embodiment, the driving rod is provided with a bidirectional spiral wire groove, the fixed sleeve is provided with a linear through - groove, the dialing block has a connected fixed portion and a transmission portion. The transmission portion passes through the linear through - groove and is received in the bidirectional spiral wire groove, and the fixed portion is exposed outside the fixed sleeve and connected to the telescopic component, so that the telescopic component can move linearly back and forth when the driving rod rotates in both directions.

[0012] In one embodiment, the massager includes a soft rubber massage head and a vibration motor. The vibration motor is arranged in the soft rubber massage head, and the soft rubber massage head is arranged in the elastic soft rubber sleeve, so that the end of the elastic soft rubber sleeve swings.

[0013] In one embodiment, the soft rubber massage head is detachably connected to the telescopic component.

[0014] In one embodiment, the massager includes a fixed plate, a cam, a telescopic rod, and an elastic element. The driving end of the driving assembly is connected to the cam. One end of the telescopic rod forms a limiting protrusion and abuts against the outer peripheral wall of the cam. The other end is movably inserted through the fixed plate and connected to the telescopic assembly. The elastic element is sleeved on the telescopic rod and located between the fixed plate and the limiting protrusion, so that when the cam rotates, the telescopic rod can move linearly back and forth along the axial direction, thereby driving the telescopic assembly to move linearly back and forth.

[0015] In this technical solution, when the massager is activated, the drive component begins to operate, driving the telescopic component to move linearly back and forth. The movement of the telescopic component interacts with the expansion blocks through a linkage transmission mechanism, causing the ends of the expansion blocks furthest from the drive component to gradually move closer or further apart. This achieves linear telescopic massage while providing a progressive massage effect, significantly enhancing the comfort and depth of the massage. When the drive component drives the telescopic component to move away from the drive component, the telescopic component pushes the expansion blocks through the linkage transmission mechanism, causing the ends of the expansion blocks furthest from the drive component to gradually move further apart. This action causes the elastic soft rubber sleeve to expand outward, providing a progressive massage effect. As the telescopic component continues to move, the radial movement of the expansion blocks gradually increases, and the degree of expansion of the elastic soft rubber sleeve also gradually increases, thus achieving a gradual pressure effect. When the drive assembly moves the telescopic assembly closer to the drive assembly, the telescopic assembly pulls the expansion blocks through a linkage transmission mechanism, causing the ends of the expansion blocks furthest from the drive assembly to gradually move closer together. This action causes the elastic soft rubber sleeve to contract inward, achieving the massager's contraction function. As the telescopic assembly continues to move, the radial movement of the expansion blocks gradually decreases, and the degree of contraction of the elastic soft rubber sleeve gradually increases, thus achieving a gradual pressure reduction effect. Through this design, the elastic soft rubber sleeve can simultaneously expand and contract axially and periodically in the radial direction, achieving a progressive massage effect and significantly improving the comfort and depth of the massage. Compared to traditional linear telescopic massagers, this massager offers a richer massage experience, meeting the personalized needs of different users for massage methods. Attached Figure Description

[0016] 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. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A cross-sectional view of an embodiment of a massager is provided for the present invention; Figure 2 for Figure 1 Enlarged view of section A in the middle; Figure 3 An exploded structural diagram of an embodiment of the vibration mechanism of the present invention is provided; Figure 4 An exploded structural diagram of an embodiment of the contraction and expansion mechanism of the present invention is provided; Figure 5 for Figure 4 A magnified view of section B in the middle.

[0018] Explanation of icon numbers: 100. Massager; 1. Elastic soft rubber sleeve; 11. Massage cavity; 2. Drive assembly; 21. Gearbox; 22. Drive rod; 221. Bidirectional spiral groove; 23. Pulley; 231. Fixing part; 232. Transmission part; 24. Fixing sleeve; 241. Straight through groove; 3. Telescopic assembly; 31. Anti-detachment part; 32. Second connecting ring block; 4. Expansion block; 41. Limiting part; 5. Linkage transmission mechanism; 51. Groove; 52. Top block; 61. Soft rubber massage head; 62. Vibration motor; 63. First connecting ring block; 7. Fixing block; 71. First half-ring block; 72. Second half-ring block.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] The present invention proposes a massager 100.

[0024] Please see Figure 1 , Figure 2 as well as Figure 4 In one embodiment of the present invention, the massager 100 includes an elastic soft rubber sleeve 1, a drive assembly 2, a telescopic assembly 3, and a plurality of expansion blocks 4. The elastic soft rubber sleeve 1 forms an outer covering layer, and its inner side defines a deformable massage cavity 11. The drive assembly 2 is used to generate reciprocating linear motion along the axial direction. The telescopic assembly 3 is connected to the drive end of the drive assembly 2 and can reciprocate linearly along the axial direction with the drive assembly 2. A plurality of expansion blocks 4 are arranged around the outer periphery of the telescopic assembly 3. One end of each expansion block 4 is rotatably connected to the inner wall of the elastic soft rubber sleeve 1, and the other end is provided with a linkage transmission mechanism 5 between it and the telescopic assembly 3. The linkage transmission mechanism 5 is used to convert the axial motion of the telescopic assembly 3 into the radial oscillation of the expansion block 4. The elastic soft rubber sleeve 1 covers the expansion block 4 and generates radial deformation with the movement of the expansion block 4, so that when the drive assembly 2 is driven, the massage cavity 11 periodically expands and contracts in the radial direction.

[0025] In this technical solution, when the massager 100 is started, the drive component 2 begins to operate, and its drive end drives the telescopic component 3 to move linearly back and forth. The movement of the telescopic component 3 interacts with the expansion blocks 4 through the linkage transmission mechanism 5, causing the ends of the expansion blocks 4 away from the drive component 2 to gradually move closer or further apart, achieving linear telescopic massage while providing a progressive massage effect, significantly improving the comfort and layering of the massage. When the drive component 2 drives the telescopic component 3 to move away from the drive component 2, the telescopic component 3 pushes the expansion blocks 4 through the linkage transmission mechanism 5, causing the ends of each expansion block 4 away from the drive component 2 to gradually move further apart. This action causes the elastic soft rubber sleeve 1 to expand outward, providing a progressive massage effect. As the telescopic component 3 continues to move, the radial movement of the expansion blocks 4 gradually increases, and the degree of expansion of the elastic soft rubber sleeve 1 also gradually increases, thereby achieving a gradual pressure effect. When the drive assembly 2 drives the telescopic assembly 3 to move closer to the drive assembly 2, the telescopic assembly 3 pulls the expansion blocks 4 through the linkage transmission mechanism 5, causing the ends of the expansion blocks 4 furthest from the drive assembly 2 to gradually move closer to each other. This action causes the elastic soft rubber sleeve 1 to contract inward, realizing the contraction function of the massager 100. As the telescopic assembly 3 continues to move, the radial movement of the expansion blocks 4 gradually decreases, and the degree of contraction of the elastic soft rubber sleeve 1 gradually increases, thereby achieving a gradual pressure reduction effect. Through this design, the massager 100 allows the elastic soft rubber sleeve 1 to contract and expand cyclically in the radial direction while extending and contracting axially, achieving a progressive massage effect and significantly improving the comfort and layering of the massage. Compared with traditional linear telescopic massagers 100, this massager 100 can provide a richer massage experience and meet the personalized needs of different users for massage methods.

[0026] Specifically, the elastic soft rubber sleeve 1 is made of soft, skin-friendly materials, such as silicone or rubber, which can fit closely to the human skin and provide a comfortable massage experience. The shape of the soft rubber sleeve can be designed according to the massage area.

[0027] The drive assembly 2 is installed inside the elastic soft rubber sleeve 1, and its drive end is set along the axial direction of the elastic soft rubber sleeve 1. The drive assembly 2 can be an electric motor or other drive device that can provide linear motion. When the drive assembly 2 is working, the drive end can move linearly along its axial direction.

[0028] The telescopic component 3 is closely connected to the drive end of the drive component 2. Its main function is to reciprocate linearly along the axis direction with the drive component 2 and transmit this motion to the linkage transmission mechanism 5, thereby driving the expansion block 4 to achieve the corresponding action. The telescopic component 3 can be made of high-strength, lightweight aluminum alloy material, which effectively reduces the weight of the entire massager 100 while ensuring sufficient strength, and improves the convenience of use.

[0029] The linkage transmission mechanism 5 is a key component connecting the telescopic component 3 and the expansion block 4. Its core function is to cleverly convert the axial movement of the telescopic component 3 into the radial swing of the expansion block 4, thereby achieving the unique massage effect of the massager 100. The linkage transmission mechanism 5 can be composed of components such as connecting rods, sliders and fixed seats, or it can be composed of grooves 51 and top blocks 52. There are no restrictions on which component is used.

[0030] Multiple expansion blocks 4 are arranged around the outer periphery of the telescopic component 3. They are important components that directly act on the elastic soft rubber sleeve 1 to realize the massage function. Each expansion block 4 is made of high-strength plastic material with a certain degree of elasticity. This material not only has high strength and hardness and can withstand a certain amount of external force without deformation, but also has good elasticity. It can generate radial swing when it is acted on by the linkage transmission mechanism 5, and can quickly return to its original shape during the swing, ensuring the continuity and stability of the massage action.

[0031] Please see Figure 2 In one embodiment, the linkage transmission mechanism 5 is configured to enable each expansion block 4 to undergo relative circumferential sliding while oscillating radially, so that the elastic soft rubber sleeve 1 forms circumferential frictional sliding while deforming radially. When the massager 100 is started, the drive component 2 starts to operate, driving the telescopic component 3 to perform axial linear reciprocating motion. When the telescopic component 3 moves away from the drive component 2, the telescopic component 3 pushes the expansion blocks 4 through the linkage transmission mechanism 5, so that the ends of each expansion block 4 away from the drive component 2 gradually move away from each other. At the same time, as the expansion blocks 4 expand radially, the end face of the expansion blocks 4 away from the drive component 2 forms an arc trajectory, that is, circumferential sliding occurs simultaneously with the radial oscillation of the expansion blocks 4. When the telescopic component 3 moves towards the drive component 2, the telescopic component 3 pushes the expansion blocks 4 through the linkage transmission mechanism 5, so that the ends of each expansion block 4 away from the drive component 2 gradually move closer to each other. At the same time, as the expansion blocks 4 contract radially, the end face of the expansion blocks 4 away from the drive component 2 forms an arc trajectory, that is, circumferential sliding occurs simultaneously with the radial oscillation of the expansion blocks 4. This design allows the elastic soft rubber sleeve 1 to expand outwards, creating a squeezing and massaging effect on the human body not only in the radial direction but also in the circumferential direction, forming a frictional sliding motion that simulates the kneading motion of a human hand, achieving a progressive massage and a circumferential frictional massage effect. As the telescopic component 3 continues to move, the swing and sliding amplitude of the expansion block 4 gradually increases, and the degree of expansion and circumferential friction of the elastic soft rubber sleeve 1 also gradually increases, thereby achieving gradual pressure application and enhanced circumferential friction.

[0032] In one embodiment, the thickness of the elastic soft rubber sleeve 1 is partitioned along the radial direction. The thickness of the region corresponding to the expansion block 4 is D1, and the thickness of the other regions is D2, and D1 < D2, so as to achieve a greater outer layer deformation amount and a flexible wrapping feeling during the radial expansion and circumferential sliding processes. The thickness of the elastic soft rubber sleeve 1 is partitioned along the radial direction. Specifically, the thickness of the region corresponding to the expansion block 4 is D1, and the thickness of the other regions (i.e., the regions other than the expansion block 4) is D2, and D1 < D2; when the expansion block 4 undergoes radial expansion and circumferential sliding, the elastic soft rubber sleeve 1 in the region corresponding to the expansion block 4 is more likely to deform due to its thinner thickness (D1), can quickly respond to the movement of the expansion block 4, and achieve a greater outer layer deformation amount; while the elastic soft rubber sleeve 1 in the other regions has a thicker thickness (D2), has better support and stability, and can provide the necessary balance of strength and flexibility for the entire massage process. Through the partitioned thickness design of the elastic soft rubber sleeve 1, a greater outer layer deformation amount is achieved during the radial expansion and circumferential sliding of the expansion block 4. This greater deformation amount can more fully stimulate the human muscles and acupoints, promote blood circulation, accelerate metabolism, effectively relieve muscle fatigue and soreness, and achieve a better massage effect. The thinner elastic soft rubber sleeve 1 in the region corresponding to the expansion block 4 can better conform to the human body curve, provide a softer and more comfortable touch during the massage process, enhance the flexible wrapping feeling, and enable the user to feel a more considerate and comfortable massage experience during use. The thicker elastic soft rubber sleeve 1 in the other regions provides good support and stability for the entire massager 100, ensures that the elastic soft rubber sleeve 1 will not be damaged due to excessive deformation during the massage process, and extends the service life of the massager 100.

[0033] To improve the use safety, stability and reliability of the massager 100, please refer to Figure 2 and Figure 4In one embodiment, a limiting portion 41 is formed at the end of the expansion block 4 away from the driving component 2, and an anti-detachment portion 31 is formed at the end of the telescopic component 3 away from the driving component 2. The limiting portion 41 is used to limit the radial swing stroke of the expansion block 4, and the anti-detachment portion 31 is used to prevent the expansion block 4 from detaching from the telescopic component 3. The limiting portion 41 formed at the end of the expansion block 4 away from the driving component 2 can be a protrusion structure, a baffle structure, or a slot structure, etc. The function of the limiting portion 41 is that when the expansion block 4 is in radial swing, it contacts the top block 52 in the linkage transmission mechanism 5 inside the massager 100, thereby limiting the radial swing stroke of the expansion block 4 and preventing it from exceeding a reasonable range. An anti-detachment part 31 is located at the end of the telescopic assembly 3 furthest from the drive assembly 2. It prevents the expansion block 4 from detaching from the telescopic assembly 3. The anti-detachment part 31 can be a snap-fit ​​structure, a protrusion structure, or a baffle structure, etc. Its function is to prevent the telescopic assembly 3 from detaching from the expansion block 4 when the telescopic assembly 3 makes linear reciprocating movements, ensuring the reliability of the connection and massage operation. By providing a limiting part 41 on the expansion block 4, the radial swing stroke of the expansion block 4 can be effectively limited, ensuring that the expansion block 4 moves within a reasonable range. This avoids damage to the internal structure of the massager 100 due to excessive movement of the expansion block 4, and also ensures that the massager 100 provides a more precise and effective massage effect, improving the massage quality. Providing an anti-detachment part 31 on the telescopic assembly 3 prevents the expansion block 4 from detaching from the telescopic assembly 3 during massage, enhancing the structural stability and reliability of the massager 100. Even under prolonged use or when subjected to significant external force, the connection between the expansion block 4 and the telescopic assembly 3 remains stable, preventing the normal use of the massager 100 from being affected by component detachment, and extending the product's service life. Precise travel limits and robust component connections effectively reduce the risk of malfunctions during use of the massager 100, minimizing the possibility of accidental injury to users and providing them with a safer and more reliable massage experience.

[0034] Please see Figure 2 and Figure 4Specifically, in one embodiment, the linkage transmission mechanism 5 includes multiple grooves 51 and multiple top blocks 52. Each expansion block 4 has a groove 51 on its side facing the telescopic component 3. Multiple top blocks 52 are spaced apart on the outer peripheral wall of the telescopic component 3. Each top block 52 is accommodated within a groove 51 and abuts against the bottom wall of the groove 51. In the extending direction of the expansion block 4, the cross-sectional area of ​​the bottom wall of the groove 51 gradually increases from the end near the driving component 2 to the end away from the driving component 2. The linkage transmission mechanism 5 includes multiple grooves 51 and multiple top blocks 52. Each expansion block 4 has a groove 51 on its side facing the telescopic component 3. The shape of the groove 51 can be designed according to actual needs, such as a trapezoidal groove or an arc-shaped groove. In this embodiment, the bottom wall and one side wall of the groove 51 are continuous curved surfaces, which not only facilitates the smooth sliding of the top block 52 but also achieves smooth movement and uniform force transmission between the top block 52 and the groove 51. Multiple top blocks 52 are spaced apart on the outer peripheral wall of the telescopic component 3. The shape of the top blocks 52 can be designed according to actual needs, such as triangles or semicircles. The top blocks 52 are smoothly positioned away from the outer peripheral wall of the telescopic component 3 to ensure smooth movement. In the extension direction of the expansion block 4, the cross-sectional area of ​​the bottom wall of the groove 51 gradually increases from the end near the drive component 2 to the end away from the drive component 2. This design allows the top blocks 52 to move within the groove 51 when the telescopic component 3 moves axially. Due to the change in the cross-sectional area of ​​the bottom wall of the groove 51, a gradually changing thrust is generated on the expansion block 4, resulting in stable and uniform radial oscillation of the expansion block 4. At the same time, this design can effectively prevent the top blocks 52 from getting stuck in the groove 51, ensuring smooth movement. Through the cooperation between the groove 51 and the top blocks 52, and the special design of the bottom wall of the groove 51, the expansion block 4 can receive a stable and uniform thrust during movement, thereby achieving precise and stable radial oscillation. This avoids the problems of jamming and uneven movement that may occur in traditional linkage transmission mechanisms 5, improving the comfort and effect of massage. The linkage transmission mechanism 5 in this embodiment has a simple structure, mainly composed of a groove 51 and a top block 52, which reduces the number of parts, reduces assembly difficulty and cost. At the same time, the simple structure also makes the linkage transmission mechanism 5 more reliable in long-term use, with a low failure rate and correspondingly reduced maintenance costs.

[0035] Further, please refer to Figure 2 and Figure 4In one embodiment, the massager 100 includes a gearbox 21, a drive rod 22, a lever 23, and a fixed sleeve 24. The output end of the drive assembly 2 is connected to the gearbox 21, the drive rod 22 is connected to the output end of the gearbox 21, the fixed sleeve 24 is sleeved on the drive rod 22 and connected to the gearbox 21, the telescopic assembly 3 is sleeved on the fixed sleeve 24, and the lever 23 is movable through the fixed sleeve 24 and connected to the drive rod 22. The drive assembly 2 drives the drive rod 22 to rotate, so that the lever 23 drives the telescopic assembly 3 to move linearly back and forth, realizing a compact mechanism with linear output. The gearbox 21 serves as a transmission and speed changer. It consists of multiple gears that mesh with each other to change the speed and increase the torque of the rotational motion input from the drive assembly 2 before outputting it. The outer shell of the gearbox 21 is made of high-strength metal materials, such as aluminum alloy, to ensure its structural strength and stability. The input end of the gearbox 21 is tightly connected to the output end of the drive assembly 2 via a coupling, and the output end is connected to the drive rod 22 for transmission. Inside the gearbox 21, the number of teeth and the module of the gears are carefully designed according to the required transmission ratio. In order to achieve a larger reduction ratio, a multi-stage gear transmission structure can be adopted. By reasonably designing the gear parameters, the drive rod 22 can obtain a suitable speed and torque to meet the working requirements of the massager 100. The drive rod 22 is connected to the output end of the gearbox 21 and rotates under the drive of the gearbox 21. The drive rod 22 is made of high-strength, wear-resistant metal material, such as stainless steel, to ensure that it will not deform or wear during long-term rotation. One end of the drive rod 22 is fixed to the output end of the gearbox 21 by key connection or spline connection to ensure reliable torque transmission. The other end of the drive rod 22 extends into the fixed sleeve 24 and is connected to the lever 23. The fixed sleeve 24 is fitted onto the drive rod 22 and connected to the gearbox 21. The fixed sleeve 24 serves to fix and support the drive rod 22, and at the same time provides guidance for the movement of the toggle block 23 and the telescopic assembly 3. The fixed sleeve 24 is made of high-strength plastic or metal material, and its inner wall is smooth to reduce the friction of the toggle block 23 during movement. One end of the fixed sleeve 24 is connected to the outer shell of the gearbox 21 by bolts, and the other end is open for the telescopic assembly 3 to be fitted. A long strip-shaped moving groove for the toggle block 23 is provided on the side wall of the fixed sleeve 24. The toggle block 23 can move through the groove and be connected to the drive rod 22 for transmission. The lever 23 can move through the fixed sleeve 24 and be connected to the drive rod 22. The lever 23 is usually made of metal and has a certain strength and hardness. One end of the lever 23 is connected to the drive rod 22, and the other end passes through the moving groove on the fixed sleeve 24 and contacts the telescopic component 3. When the drive rod 22 rotates, the lever 23 moves in a circular motion under the drive of the drive rod 22. At the same time, due to the restriction of the moving groove on the fixed sleeve 24, the lever 23 can only move in a straight line, thereby driving the telescopic component 3 to make a linear reciprocating motion.The telescopic component 3 is fitted onto the fixed sleeve 24 and moves linearly back and forth under the drive of the lever 23. The telescopic component 3 can be a hollow cylindrical tube structure, with a certain gap between its inner wall and the outer wall of the fixed sleeve 24 to ensure smooth movement. One end of the telescopic component 3 contacts the lever 23, and the other end can be connected to the massage head. When the lever 23 drives the telescopic component 3 to move linearly back and forth, the massage head also moves back and forth, thus providing a massage to the human body. The massage head is installed at the end of the telescopic component 3 and comes into direct contact with the human body to provide a massage effect. The shape and material of the massage head can be designed according to different massage needs. A spherical massage head with a smooth surface can be used to provide a gentler massage; a conical massage head can also be used to concentrate the massage intensity. The material of the massage head can be soft silicone or rubber to improve the comfort of the massage. The massager 100 in this embodiment cleverly combines components such as the gearbox 21, drive rod 22, lever 23, and fixing sleeve 24 to achieve power transmission and motion conversion within a limited space. Compared with traditional massagers 100, this mechanism greatly reduces the size of the massager 100, making it more compact and portable, and convenient for users to use in different scenarios. The design of the gearbox 21 makes power transmission smoother and effectively reduces vibration and noise. At the same time, the fixing sleeve 24 provides precise guidance for the movement of the lever 23 and the telescopic component 3, ensuring the stability of the linear reciprocating motion of the lever 23 driving the telescopic component 3. This makes the movement of the massage head more uniform and smooth, improving the comfort and effect of the massage.

[0036] Please see Figure 4 and Figure 5In one embodiment, the drive rod 22 has a bidirectional helical groove 221, the fixed sleeve 24 has a straight through groove 241, and the lever 23 has a fixed part 231 and a transmission part 232 connected to each other. The transmission part 232 passes through the straight through groove 241 and is housed within the bidirectional helical groove 221. The fixed part 231 is exposed on the fixed sleeve 24 and connected to the telescopic assembly 3, so that the telescopic assembly 3 can achieve linear reciprocating motion when the drive rod 22 rotates in both directions. The bidirectional helical groove 221 on the drive rod 22 has a specific pitch and helical direction, and is a key structure for realizing the bidirectional rotational drive of the telescopic assembly 3 to linear motion. The straight through groove 241 is formed on the side wall of the fixed sleeve 24, and the direction of the through groove is consistent with the linear motion direction of the telescopic assembly 3, providing a moving channel for the transmission part 232 of the lever 23. The lever 23 has a fixed part 231 and a transmission part 232 connected together. The transmission part 232 passes through the straight groove 241 of the fixed sleeve 24 and is housed in the bidirectional spiral groove 221 of the drive rod 22. The fixed part 231 is exposed in the fixed sleeve 24 and connected to the telescopic component 3. The lever 23 is usually made of metal and has a certain strength and hardness. The matching precision of the transmission part 232 and the bidirectional spiral groove 221 is required to ensure that the lever 23 can be accurately driven to move when the drive rod 22 rotates. The connection method between the fixed part 231 and the telescopic component 3 can be adhesive, snap-fit ​​connection, etc., to ensure a firm and reliable connection. In this embodiment, the massager 100, by cleverly combining the drive rod 22 with the bidirectional spiral groove 221, the fixed sleeve 24 with the straight groove 241, and the lever 23 with a specific structure, completes the power transmission and motion conversion functions in a limited space. Compared with the traditional massager 100, it greatly reduces the size, is more compact and portable, and is convenient for users to use in different scenarios.

[0037] Please see Figure 1 and Figure 3In one embodiment, the massager 100 includes a soft rubber massage head 61 and a vibration motor 62. The vibration motor 62 is disposed within the soft rubber massage head 61, which is disposed within the elastic soft rubber sleeve 1, allowing the end of the elastic soft rubber sleeve 1 to swing. The soft rubber massage head 61, disposed within the elastic soft rubber sleeve 1, is a component that directly contacts the human body for massage. The soft rubber massage head 61 is made of soft rubber material, such as medical-grade silicone, and has advantages such as being soft, skin-friendly, non-toxic, and odorless, providing users with a comfortable massage experience and avoiding skin irritation. The shape of the soft rubber massage head 61 can be designed into various shapes such as spherical, conical, and cylindrical according to massage needs. Different shapes of massage heads can produce different massage effects. The spherical massage head has a smooth surface and is suitable for gentle massage over a large area; the conical massage head can concentrate massage intensity for deep massage of specific acupoints. A vibration motor 62 is housed within the soft rubber massage head 61, providing vibration functionality to the massager 100. The vibration motor 62 is a miniature DC vibration motor, offering advantages such as small size, adjustable vibration frequency, and low noise. The vibration motor 62 is connected to a circuit board within the massager 100 body via wires, with the circuit board controlling its start, stop, and vibration frequency. The placement of the vibration motor 62 within the soft rubber massage head 61 can be optimized according to the desired massage effect. Positioning the vibration motor 62 at the center of the soft rubber massage head 61 allows for even vibration transmission across the entire massage head surface, improving the uniformity of the vibration massage. When the user activates the massager 100, the circuit board controls the vibration motor 62 to begin operation, generating high-frequency vibrations that are transmitted to the soft rubber massage head 61. Simultaneously, the circuit board controls the drive assembly 2 to activate, causing the elastic soft rubber sleeve 1 to perform radial and axial reciprocating oscillating movements. Under the vibration of the vibration motor 62 and the radial and axial oscillations of the elastic soft rubber sleeve 1, the soft rubber massage head 61 provides a comprehensive and diverse massage to the human body. Users can adjust the vibration frequency of the vibration motor 62 and the driving frequency and amplitude of the drive component 2 according to their own feelings and needs through the control buttons on the massager 100 to obtain the most suitable massage effect.

[0038] Please see Figure 3In one embodiment, the soft rubber massage head 61 is detachably connected to the telescopic component 3. This detachable connection allows for the design of a connection interface, such as a threaded interface or a snap-fit ​​interface, at one end of the soft rubber massage head 61, which matches the corresponding interface on the telescopic component 3. This facilitates quick installation and disassembly for the user, without limiting the connection method. Specifically, the massager 100 also includes a fixing block 7, which comprises a detachably connected first semi-ring block 71 and a second semi-ring block 72. The soft rubber massage head 61 has a first connecting ring block 63 at the end near the telescopic component 3, and the telescopic component 3 has a second connecting ring block 32 at the end away from the drive component. The first connecting ring block 63 is fitted onto the second connecting ring block 32, and the first semi-ring block 71 and the second semi-ring block 72 surround and fit around the first connecting ring block 63 to connect the soft rubber massage head 61 to the telescopic component 3. When it is necessary to replace the soft rubber massage head 61, simply disassemble the first half-ring block 71 and the second half-ring block 72 of the fixing block 7, remove the original soft rubber massage head 61, then put the first connecting ring block 63 of the new soft rubber massage head 61 onto the second connecting ring block 32 of the telescopic component 3, and then reassemble and fix the first half-ring block 71 and the second half-ring block 72 onto the first connecting ring block 63 to complete the replacement operation. The use of the detachable fixing block 7 to connect the soft rubber massage head 61 and the telescopic component 3 makes the installation and removal of the soft rubber massage head 61 very convenient.

[0039] In another embodiment, the massager 100 includes a fixed plate, a cam, a telescopic rod, and an elastic element. The driving end of the drive assembly 2 is connected to the cam. One end of the telescopic rod forms a limiting protrusion and abuts against the outer peripheral wall of the cam. The other end is movably inserted through the fixed plate and connected to the telescopic assembly 3. The elastic element is sleeved on the telescopic rod and located between the fixed plate and the limiting protrusion, so that when the cam rotates, the telescopic rod can move linearly back and forth along the axial direction, thereby driving the telescopic assembly 3 to move linearly back and forth. The fixed plate serves as the supporting foundation of the entire drive structure, providing a stable mounting position for other components. The fixed plate is usually made of high-strength, rigid materials, such as metal plates or rigid plastic plates, to ensure that the massager 100 will not deform during operation and to ensure the normal operation of the drive structure. The cam, connected to the drive end of drive assembly 2, is a key component driving the telescopic rod's movement. The shape design of the cam plays a decisive role in the motion pattern of the telescopic rod. Common cam shapes include disc cams and cylindrical cams. In this design, a specific contour curve can be designed according to actual massage needs to achieve different forms of linear reciprocating motion of the telescopic rod, such as uniform motion and variable speed motion. The cam is generally made of wear-resistant, high-strength materials, such as alloy steel, and undergoes heat treatment to improve its hardness and wear resistance, extending its service life. One end of the telescopic rod has a limiting protrusion that abuts against the outer peripheral wall of the cam, while the other end can movably pass through the fixed plate and connect to the telescopic assembly 3. The telescopic rod transmits the cam's motion, converting the cam's rotational motion into its own linear reciprocating motion. The limiting protrusion prevents the telescopic rod from detaching from the fixed plate during movement and, in conjunction with the elastic element, ensures accurate repositioning of the telescopic rod. The telescopic rod is typically made of lightweight, high-strength materials, such as aluminum alloy, to reduce overall weight while ensuring sufficient strength and rigidity. An elastic element is fitted onto the telescopic rod and located between the fixed plate and the limiting protrusion. The function of the elastic element is to provide a restoring force to the telescopic rod during cam rotation, ensuring that the telescopic rod remains in close contact with the outer peripheral wall of the cam, guaranteeing the continuity and stability of the movement. The elastic element is generally a spring, such as a compression spring, whose elastic coefficient can be selected according to the design requirements of the massager 100 to achieve different massage intensities and movement characteristics. When the drive assembly 2 is activated, its drive end drives the cam to rotate. Because the limiting protrusion at one end of the telescopic rod abuts against the outer peripheral wall of the cam, and the elastic element provides a restoring force to the telescopic rod, the telescopic rod remains in close contact with the cam throughout its rotation. As the cam rotates, the contour curve of its outer peripheral wall continuously changes, pushing the telescopic rod to perform linear reciprocating motion along the axial direction. The reciprocating motion of the telescopic rod drives the telescopic assembly 3 to move synchronously, thereby achieving the massage function.This massager 100 employs a drive structure composed of a fixed plate, cam, telescopic rod, and elastic element. With fewer parts and a simple, compact structure, the massager 100's size and weight are significantly reduced, making it easy to carry and use. Simultaneously, the simple structure lowers manufacturing difficulty and cost, improving product reliability and stability. The elastic element provides a stable restoring force to the telescopic rod, ensuring it remains in close contact with the outer wall of the cam, preventing vibration and jamming during movement. This guarantees the stability and continuity of the linear reciprocating motion of the telescopic component 3, providing users with a more comfortable and effective massage experience. By controlling the rotation speed and direction of the drive component 2, the speed and direction of the telescopic rod can be easily adjusted, thereby flexibly adjusting the massage intensity and frequency of the telescopic component 3. Users can adjust the massage parameters at any time according to their needs and preferences, meeting the massage needs of different people and different body parts.

[0040] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A massager, characterized in that, include: An elastic soft rubber sleeve forms an outer covering layer, the inner side of which defines a deformable massage cavity; Drive components are used to generate reciprocating linear motion along the axial direction; The telescopic component is connected to the drive end of the drive component and is capable of reciprocating linear motion along the axial direction with the drive component. Multiple expansion blocks are arranged around the outer periphery of the telescopic assembly. One end of each expansion block is rotatably connected to the inner wall of the elastic soft rubber sleeve, and the other end is provided with a linkage transmission mechanism between it and the telescopic assembly. The linkage transmission mechanism is used to convert the axial movement of the telescopic assembly into the radial swing of the expansion block. The elastic soft rubber sleeve covers the expansion block and undergoes radial deformation as the expansion block moves, so that the massage cavity periodically expands and contracts in the radial direction when the drive assembly is driven.

2. The massager as described in claim 1, characterized in that, The linkage transmission mechanism is configured to enable each expansion block to swing radially while simultaneously sliding relative to the circumference, so that the elastic soft rubber sleeve can deform radially while forming circumferential frictional sliding.

3. The massager as described in claim 2, characterized in that, The thickness of the elastic soft rubber sleeve is divided into sections along the radial direction, wherein the thickness of the area corresponding to the expansion block is D1, the thickness of the other areas is D2, and D1 < D2, so as to achieve greater outer layer deformation and flexible coverage during the radial expansion and circumferential sliding process.

4. The massager as described in any one of claims 1 to 3, characterized in that, The expansion block has a limiting portion at one end away from the drive assembly, and the telescopic assembly has an anti-detachment portion at one end away from the drive assembly. The limiting portion is used to limit the radial swing stroke of the expansion block, and the anti-detachment portion is used to prevent the expansion block from detaching from the telescopic assembly.

5. The massager as described in any one of claims 1 to 3, characterized in that, The linkage transmission mechanism includes multiple grooves and multiple top blocks. Each expansion block has a groove on the side facing the telescopic component. Multiple top blocks are spaced apart on the outer peripheral wall of the telescopic component. Each top block is accommodated in a groove and abuts against the bottom wall of the groove. In the extending direction of the expansion block, the cross-sectional area of ​​the bottom wall of the groove gradually increases from the end closer to the driving component to the end farther away from the driving component.

6. The massager as described in any one of claims 1 to 3, characterized in that, The massager includes a gearbox, a drive rod, a lever, and a fixed sleeve. The output end of the drive assembly is connected to the gearbox, and the drive rod is connected to the output end of the gearbox. The fixed sleeve is fitted onto the drive rod and connected to the gearbox. The telescopic assembly is fitted onto the fixed sleeve. The lever can move through the fixed sleeve and is connected to the drive rod. The drive assembly drives the drive rod to rotate, so that the lever drives the telescopic assembly to move linearly back and forth, achieving a compact mechanism with linear output.

7. The massager as described in claim 6, characterized in that, The drive rod has a bidirectional spiral groove, the fixed sleeve has a straight through groove, the lever has a fixed part and a transmission part connected together, the transmission part passes through the straight through groove and is accommodated in the bidirectional spiral groove, and the fixed part is exposed in the fixed sleeve and connected to the telescopic component, so that the telescopic component can achieve linear reciprocating motion when the drive rod rotates in both directions.

8. The massager as described in any one of claims 1 to 3, characterized in that, The massager includes a soft rubber massage head and a vibration motor. The vibration motor is located inside the soft rubber massage head, which is located inside the elastic soft rubber sleeve, so that the end of the elastic soft rubber sleeve swings.

9. The massager as described in claim 8, characterized in that, The soft rubber massage head is detachably connected to the telescopic component.

10. The massager as described in any one of claims 1 to 3, characterized in that, The massager includes a fixed plate, a cam, a telescopic rod, and an elastic element. The driving end of the driving assembly is connected to the cam. One end of the telescopic rod forms a limiting protrusion and abuts against the outer peripheral wall of the cam. The other end is movably inserted through the fixed plate and connected to the telescopic assembly. The elastic element is sleeved on the telescopic rod and located between the fixed plate and the limiting protrusion, so that when the cam rotates, the telescopic rod can move linearly back and forth along the axial direction, thereby driving the telescopic assembly to move linearly back and forth.

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