Waist massager

Abstract

The utility model relates to a waist massager which comprises a shell, a circuit board, a rechargeable battery, a driving assembly, a connecting rod assembly and a massage assembly, the driving assembly drives the connecting rod assembly, and the connecting rod assembly drives the massage assembly; the driving assembly comprises a motor, two duplicate gears, two output gears and two output shafts, the motor is provided with a motor output shaft, the two duplicate gears are matched with worms arranged at the two ends of the motor output shaft respectively, and each duplicate gear is meshed with the corresponding output gear and drives the output gear. Each output gear is fixedly connected with a corresponding output shaft; a fixed eccentric part and a first movable eccentric part are fixedly arranged at the two ends of one output shaft, and the two ends of the other output shaft are also fixedly connected with the fixed eccentric part and movably connected with a second movable eccentric part; the driving assembly drives the connecting rod assembly to move; the connecting rod assembly drives the massage assembly to move.

Description

Technical Field

[0001] This utility model belongs to the field of massager technology, and specifically relates to a miniaturized waist massager. Background Technology

[0002] The massager is a new generation of health care equipment. It not only has eight simulated functions, allowing you to truly experience the wonderful sensations of acupuncture, massage, percussion, cupping, scraping, slimming, and immune regulation, but also has the unique effect of treating hypertension. With several independent soft massage heads, it can relax muscles, soothe nerves, promote blood circulation, enhance cell metabolism, and improve skin elasticity. It can relieve fatigue, significantly reduce various chronic pains, acute pains, and muscle soreness, relax the body, reduce stress, and reduce skin wrinkles.

[0003] Portable waist massagers are another commonly used type of massager, usually air pressure or pulse massagers. However, air pressure massagers have the problem of weak massage intensity, and pulse massagers have uncontrollable intensity. Most mechanical waist massagers on the market have rotating massage heads, limited massage techniques, are bulky, and offer a poor user experience, resulting in low user acceptance.

[0004] Therefore, it is necessary to develop a miniaturized waist massager with diverse massage methods and a better user experience to solve the above problems. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a miniaturized waist massager to solve the issues of existing waist massagers having limited massage modes and a less than ideal user experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waist massager, including a housing, a circuit board disposed within the housing, a rechargeable battery supplying power to the circuit board, and further including a drive assembly, a linkage assembly, and a massage assembly, wherein the drive assembly drives the linkage assembly, and the linkage assembly drives the massage assembly to perform kneading massage on the waist.

[0007] The drive assembly includes a motor, two symmetrically arranged double gears, two symmetrically arranged output gears, and two symmetrically arranged output shafts. The motor is provided with a motor output shaft. The two double gears respectively cooperate with worm gears provided at both ends of the motor output shaft. Each double gear meshes with a corresponding output gear and drives the output gear. Each output gear is fixedly connected to a corresponding output shaft. A fixed eccentric member is fixedly connected to both ends of one output shaft, and a first movable eccentric member is movably connected to both ends of the other output shaft. Another fixed eccentric member and a second movable eccentric member are also fixedly connected to both ends of the other output shaft.

[0008] The two fixed eccentric components, the first movable eccentric component, and the second movable eccentric component are all connected to a linkage assembly and drive the linkage assembly to move; each linkage assembly is connected to a corresponding massage component and drives the massage component to perform kneading motion.

[0009] As a further improvement of this utility model, it also includes a heating button for activating the heating function of the massage component. The massage component includes a palm part and finger parts. The palm part is provided with a heating element. Pressing the heating button will power the heating element to generate heat.

[0010] As a further improvement of this utility model, the fixed eccentric component is provided with an assembly hole, an eccentric shaft and a pin hole. The fixed eccentric component is assembled with the corresponding output shaft through the assembly hole, and a first pin passes through the pin hole and is fixedly connected to the output shaft, thereby fixing the fixed eccentric component on the output shaft.

[0011] As a further improvement of this utility model, the first movable eccentric component and the second movable eccentric component are respectively provided with mounting holes, eccentric shafts, and limiting grooves. The first movable eccentric component and the second movable eccentric component are movably assembled with the output shaft through the mounting holes. A second pin passes through the limiting grooves of the first movable eccentric component and the second movable eccentric component and is fixedly connected to the output shaft. The limiting groove restricts the second pin from rotating within the limiting groove. When the motor rotates in the forward direction, when the second pin rotates to one end of the limiting groove, the massage components arranged on the same output shaft synchronously perform kneading motion. When the motor rotates in the reverse direction, when the second pin rotates to the other end of the limiting groove, the massage components arranged on the same output shaft alternately perform kneading motion.

[0012] As a further improvement of this utility model, each linkage assembly includes a first linkage, a second linkage, a third linkage, and a linkage fixing seat. On one side of the drive assembly, one end of the first linkage is movably connected to the eccentric shaft of the fixed eccentric member. On the other side of the drive assembly, one end of the first linkage is movably connected to the eccentric shafts of the first movable eccentric member and the second movable eccentric member. The other end of the first linkage is movably connected to the upper part of the second linkage. The middle part of the second linkage is movably connected to the linkage fixing seat, and the lower part of the second linkage is movably connected to the support seat provided on the massage assembly. One end of the third linkage is movably connected to the linkage fixing seat, and the other end is movably connected to the support seat of the massage assembly.

[0013] As a further improvement of this utility model, the connecting rod assembly further includes a soft protective sleeve, which covers the support base, the second connecting rod, and the third connecting rod.

[0014] As a further improvement of this utility model, the finger part is an elastic finger, the inside of the finger part is a support member, and the outside is wrapped with a soft material.

[0015] As a further improvement of this utility model, the outer casing is further provided with a charging interface that is electrically connected to the circuit board, and an external power source charges the rechargeable battery through the charging interface.

[0016] To achieve the above objectives, this utility model provides another technical solution as follows: A waist massager is provided, comprising a housing, a circuit board disposed within the housing, a rechargeable battery supplying power to the circuit board, and further comprising a drive assembly, a linkage assembly, and a massage assembly. The drive assembly drives the linkage assembly, and the linkage assembly drives the massage assembly to perform kneading massage on the waist. The drive assembly includes a motor, two symmetrically arranged double gears, two symmetrically arranged output gears, and two symmetrically arranged output shafts. The motor has a motor output shaft. The two double gears respectively cooperate with worm gears disposed at both ends of the motor output shaft. Each double gear meshes with a corresponding output gear and drives the output gear. Each output gear is fixedly connected to a corresponding output shaft. One output shaft has a fixed eccentric component fixedly connected to both ends and a first movable eccentric component movably connected to both ends. The other output shaft also has another fixed eccentric component fixedly connected to both ends and a second movable eccentric component movably connected to both ends.

[0017] The two fixed eccentric components, the first movable eccentric component, and the second movable eccentric component are all connected to a linkage assembly and drive the linkage assembly to move; each linkage assembly is connected to a corresponding massage component and drives the massage component to perform kneading motion;

[0018] Both the first and second movable eccentric components are provided with limiting grooves. A pin passes through the limiting grooves of the first and second movable eccentric components respectively and is fixedly connected to the output shaft. The limiting grooves restrict the pin from rotating within the limiting grooves. When the motor rotates in the forward direction, when the pin rotates to one end of the limiting groove, the two massage components on the same output shaft perform kneading motions synchronously. When the motor rotates in the reverse direction, when the pin rotates to the other end of the limiting groove, the two massage components on the same output shaft perform kneading motions alternately.

[0019] As a further improvement of this utility model, each linkage assembly includes a first linkage, a second linkage, a third linkage, and a linkage fixing seat. On one side of the drive assembly, one end of the first linkage is movably connected to the eccentric shaft of the fixed eccentric member. On the other side of the drive assembly, one end of the first linkage is movably connected to the eccentric shafts of the first movable eccentric member and the second movable eccentric member. The other end of the first linkage is movably connected to the upper part of the second linkage. The middle part of the second linkage is movably connected to the linkage fixing seat, and the lower part of the second linkage is movably connected to the support seat provided on the massage assembly. One end of the third linkage is movably connected to the linkage fixing seat, and the other end is movably connected to the support seat of the massage assembly.

[0020] The technical effects and advantages of this utility model waist massager:

[0021] 1. An eccentric component is installed at the end of the output shaft. The eccentric component drives the second link to swing back and forth through the first link. The rotation shafts of the second link and the third link are rotatably connected to the link fixing seat. The massage component is movably connected to the second link and the third link. Driven by the second link, the massage component moves back and forth, forming a kneading action. The movement mode is stable and reliable.

[0022] 2. The massage components are equipped with a soft protective cover to prevent injury to the human body.

[0023] 3. The outer sides of the second and third connecting rods are respectively provided with arc-shaped protective surfaces. The axis of the arc-shaped surface is coaxial with the rotation axis of the connecting rod. During the entire operating cycle, it can isolate the inside of the machine from the outside to prevent mechanical movement from causing injury to the human body and to prevent foreign objects from entering the machine and causing damage.

[0024] 4. Compared with the prior art, the waist massager of this utility model reduces one motor, thus reducing weight and meeting the requirement that the waist cannot bear too much weight; compared with the two motors and two cumbersome drive systems of the prior art, the waist massager of this utility model is smaller in size and lower in cost.

[0025] 5. This utility model achieves the switching between synchronous and staggered operation of the massage components by changing the forward and reverse rotation of the motor, resulting in a massage mode that is both tense and relaxed, making consumers feel very comfortable. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A perspective view of an embodiment of the lumbar massager of this utility model is shown.

[0028] Figure 2 Another perspective view of an embodiment of the lumbar massager of this utility model is shown.

[0029] Figure 3 A partially exploded structural diagram of an embodiment of the waist massager of this utility model is shown.

[0030] Figure 4 This diagram shows another part of the exploded structure of an embodiment of the waist massager of the present invention.

[0031] Figure 5 A cross-sectional view of an embodiment of the lumbar massager of this utility model is shown.

[0032] Figure 6 Another cross-sectional view of an embodiment of the lumbar massager of this utility model is shown.

[0033] Figure 7 A cross-sectional view of the drive assembly of an embodiment of the lumbar massager of the present invention is shown.

[0034] Figure 8 Another cross-sectional view of the drive assembly of an embodiment of the waist massager of the present invention is shown.

[0035] Figure 9 A perspective view of the first movable eccentric member of the drive assembly of an embodiment of the waist massager of the present invention is shown.

[0036] Figure 10 A perspective view of the second movable eccentric member of the drive assembly of an embodiment of the waist massager of the present invention is shown.

[0037] Figure 11 A perspective view of the fixed eccentric component of the drive assembly of an embodiment of the lumbar massager of the present invention is shown.

[0038] Figure 12 A perspective view of the drive assembly of an embodiment of the waist massager of this utility model is shown, with the motor rotating in the forward direction.

[0039] Figure 13 An assembly diagram of the drive assembly, linkage assembly, and massage assembly of an embodiment of the waist massager of this utility model is shown, with the motor rotating in the forward direction.

[0040] Figure 14 A perspective view of the drive assembly of an embodiment of the waist massager of this utility model is shown, with the motor rotating in the opposite direction.

[0041] Figure 15An assembly diagram of the drive assembly, linkage assembly, and massage assembly of an embodiment of the waist massager of this utility model is shown, in which the motor is rotating in the reverse direction.

[0042] Figure 16 Another assembly diagram of the drive assembly, connecting rod assembly, and massage assembly of an embodiment of the waist massager of this utility model is shown.

[0043] Figure 17 A cross-sectional view of the linkage assembly and massage assembly of an embodiment of the lumbar massager of this utility model is shown.

[0044] Figure 18 A perspective view of the drive assembly and linkage assembly of an embodiment of the present invention's waist massager is shown after assembly. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0046] like Figures 1 to 4 as well as Figure 6 As shown, this utility model provides a waist massager 100, which includes a housing 10, a circuit board 20 disposed in the housing 10, a rechargeable battery 30 that powers the circuit board 20, a drive assembly 40, four sets of linkage assemblies 50, and four sets of massage assemblies 60.

[0047] Both ends of the outer casing 10 are provided with elongated positioning holes 11 for the strap to pass through, and the strap positions the waist massager 100 on the user's waist to massage the waist.

[0048] The housing 10 has a power button 12 and a heating button 14. The circuit board 20 and the rechargeable battery 30 electrically connected to the circuit board 20 are both located inside the housing 10. A charging interface 13 (generally Type-C, but other types are also possible) located between the power button 12 and the heating button 14 is connected to the circuit board 20 and charges the rechargeable battery 30. The rechargeable battery 30 is generally a lithium-ion battery, but other types of rechargeable batteries are also possible.

[0049] The drive assembly 40 is a gearbox with a motor. The gearbox housing contains a motor 41, and the rechargeable battery 30 supplies power to the motor 41. The motor 41 has an output shaft 412. In this embodiment, the worm gears at both ends of the output shaft 412 have opposite helical directions, i.e., one end is left-handed and the other is right-handed. It can be understood that the worm gears at both ends of the output shaft 412 can also have the same helical direction. A double gear 42, which meshes with the worm gear, is symmetrically located at each end of the output shaft 412. Each double gear 42 meshes with and drives an output gear 43. Each output gear 43 is housed within the gearbox housing. Each output gear 43 is fixedly connected to an output shaft 45 (or gearbox output shaft) via a gear retaining pin 44. One output shaft 45 has a fixed eccentric member 46 fixedly connected to both ends and a first movable eccentric member 47a movably connected to both ends. The other output shaft 45 also has another fixed eccentric member 46 fixedly connected to both ends and a second movable eccentric member 47b movably connected to both ends. The two fixed eccentric components 46 are respectively fixed to the output shaft 45 by the first pin 464; the first and second movable eccentric components 47a and 47b are respectively connected to the output shaft 45 by the second pin 48. The gears in the gearbox are arranged symmetrically from left to right, with corresponding gears on both sides rotating in opposite directions, and the corresponding left and right output shafts rotating in opposite directions. Please refer to... Figures 6 to 8 .

[0050] like Figures 9 to 12 As shown, the fixed eccentric component 46 is provided with an assembly hole 461, an eccentric shaft 462 and a pin hole 463. The fixed eccentric component 46 is assembled with the corresponding output shaft 45 through the assembly hole 461, and the first pin 464 passes through the pin hole 463 and is fixedly connected to the output shaft 45, thereby fixing the fixed eccentric component 46 on the output shaft 45.

[0051] The first movable eccentric component 47a and the second movable eccentric component 47b are respectively provided with mounting holes 471a and 471b, eccentric shafts 472a and 472b, and limiting grooves 473a and 473b. The first movable eccentric component 47a and the second movable eccentric component 47b are movably assembled with the output shaft 45 through their mounting holes 471a and 471b, respectively. The structures of the first movable eccentric component 47a and the second movable eccentric component 47b are basically the same, and their limiting grooves 473a and 473b have the same size, included angle, and length. The difference lies in the different slot positions of their limiting grooves 473a and 473b on the same circumference (the angles of the limiting grooves are the same, and the angles can be set as needed). A second pin 48 passes through the limiting grooves 473a and 473b of the first movable eccentric member 47a and the second movable eccentric member 47b, respectively, and connects to the output shaft 45. The second pin 48 can only rotate within the two ends of the limiting grooves 473a and 473b, thereby limiting the first movable eccentric member 47a and the second movable eccentric member 47b on the output shaft 45. The difference between the first movable eccentric member 47a and the second movable eccentric member 47b is that, assuming a plane is generated simultaneously through the axis of the eccentric shaft and the axis of the output shaft, the limiting grooves on the first movable eccentric member and the second movable eccentric member are symmetrical with reference to this plane.

[0052] like Figure 5 , Figures 13 to 18As shown, the linkage assembly 50 has four sets, each with the same structure. Each set of linkage assemblies 50 is movably connected to the drive assembly 40 and the massage assembly 60, respectively. Each linkage assembly 50 includes a first link 51, a second link 52, and a third link 53. On one side of the drive assembly 40, one end of the first link 51 is movably connected to the eccentric shaft 462 of the fixed eccentric member 46. On the other side of the drive assembly 40, one end of the first link 51 is movably connected to the eccentric shafts 472a and 472b of the first movable eccentric member 47a and the second movable eccentric member 47b, respectively. The other end of the first link 51 is connected to the upper part of the second link 52 via... The second connecting rod 52 is movably connected to the connecting rod fixing seat 55 via a pivot shaft, and the lower end of the second connecting rod 52 is movably connected to the support seat 65 of the massage component 60 via a pivot shaft. The upper end of the third connecting rod 53 is movably connected to the connecting rod fixing seat 55 via a pivot shaft, and the lower end of the third connecting rod 53 is also movably connected to the support seat 65 of the massage component 60 via a pivot shaft. The second connecting rod 52 drives the support seat 65 to move, and the support seat 65 drives the third connecting rod 53 to move. The function of the third connecting rod 53 is to stabilize the movement of the support seat 65, thereby making the massage component 60 perform kneading actions more stably. In addition, the outer sides of the second link 52 and the third link 53 are respectively provided with arc-shaped protective surfaces. The axis of the arc-shaped protective surfaces is coaxial with the rotation axis of the second link 52 and the third link 53. This isolates the interior of the machine from the exterior throughout the entire operating cycle, preventing mechanical movement from causing injury to the human body and preventing foreign objects from entering the machine and causing damage. Please refer to [reference needed]. Figure 5 .

[0053] Please continue to refer to this. Figure 5 The massage component 60 includes a palm portion 61, finger portions 62, a soft protective sleeve 63, and a support base 65 for supporting the palm portion 61 and finger portions 62. The palm portion 61 is mounted on the support base 65 and contains a heating element (heating wire). When energized, the heating element generates heat in the palm portion 61. The finger portions 62 are flexible fingers with a flat support inside and are covered with a soft material to prevent injury to the lower back. The soft protective sleeve 63 covers the support base 65, the second connecting rod 52, and the third connecting rod 53 to prevent pinching the user and thus avoid injury. When massaging the lower back, the palm portion 61 and finger portions 62 mimic the action of a human hand and fingers. The soft protective sleeve 63 is generally made of cloth or leather, but other materials may also be used.

[0054] When the operator needs to massage their lower back, first secure the lower back massager 100 to their waist with the straps, then press the power button 12. Figure 1 , Figure 7 , Figure 12 and Figure 13 As shown, after the motor 41 is powered on, it rotates in the forward direction, driving the motor output shaft 412 to rotate in the forward direction. The worm gears at both ends of the motor output shaft 412 have opposite helical directions, resulting in the double gears 42 at both ends rotating in opposite directions (one double gear rotates counterclockwise, and the other double gear rotates clockwise). Each double gear 42 drives the corresponding output gear 43 to rotate. Each output gear 43 drives the output shaft 45 fixed at the center of the output gear 43 to rotate. The fixed eccentric component fixed at one end of each output shaft 45 also rotates synchronously. The first movable eccentric component 47a connected to the other end of one of the output shafts 45 also rotates synchronously, and the second movable eccentric component 47b connected to the other end of the other output shaft 45 also rotates synchronously. At this time, the second pin 48 abuts against one end of the limiting groove 473a and 473b respectively. Simultaneously, the first connecting rod 51 connected to the eccentric shaft 462 of the fixed eccentric member 46 is driven to rotate by the eccentric shaft 462. The first connecting rod 51 drives the second connecting rod 52 pivotally connected to the first connecting rod 51 to rotate. The second connecting rod 52 then drives the massage assembly 60 and the third connecting rod 53 to move. The massage assembly 60 is driven to realize the massage of the user's waist by the palm part 61 and the finger part 62. Furthermore, the first connecting rod 51 movably connected to the eccentric shafts 472a and 472b of the first movable eccentric member 47a and the second movable eccentric member 47b is driven by the eccentric shaft 462. Driven by 72a and 472b, the first connecting rod 51 rotates, causing the second connecting rod 52 connected to it to rotate. The second connecting rod 52 then drives the massage component 60 and the third connecting rod 53 to move. The massage component 60 is driven to achieve kneading massage of the user's waist by the finger part 62 and the palm part 61. Thus, the opening and closing movements of the massage components 60 set on the same output shaft 45 are synchronized, that is, at any position during operation, the opening and closing angles of the two sets of massage components 60 are the same. Furthermore, the four sets of massage components 60 combine to perform kneading actions on different positions of the waist. At this time, the eccentric shaft 462 on one of the fixed eccentric members 46 and the eccentric shaft 472a on its corresponding first movable eccentric member 47a are on the same axis E1; the eccentric shaft 462 on the other fixed eccentric member 46 and the eccentric shaft 472b on its corresponding second movable eccentric member 47b are on the same axis E2. Figure 12 As shown.

[0055] If the user feels that the palm part 61 is relatively cool, the user can press the heating button 14, and the heating wire inside the palm part 61 will be energized and heated, so that the user's waist can be heated while massaging, making the user feel very comfortable.

[0056] In this embodiment, press the power button 12 again, as shown. Figure 1 , Figure 14and Figure 15 As shown, the motor 41 rotates in reverse, driving the motor output shaft 412 to rotate in reverse. The fixed eccentric member 46 fixed at one end of each output shaft 412 also rotates in reverse synchronously. However, when the second pins 48 in the limiting grooves 473a and 473b of the first movable eccentric member 47a and the second movable eccentric member 47b rotate synchronously to the other end of the corresponding limiting grooves 473a and 473b, the first movable eccentric member 47a connected to the other end of one of the output shafts 45 rotates in reverse synchronously, and the second movable eccentric member 47b connected to the other end of the other output shaft 45 also rotates in reverse synchronously. At this time, the movement of the fixed eccentric member 46 is not synchronous with the movement of the first movable eccentric member 47a and the second movable eccentric member 47b, and they move alternately. In this way, the connecting rod assembly 50 and the massage assembly 60 connected to the eccentric shaft 462 of the fixed eccentric member 46 move synchronously, and the connecting rod assembly 50 and the massage assembly 60 connected to the eccentric shafts 472a and 472b of the first movable eccentric member 47a and the second movable eccentric member 47b also move synchronously. The connecting rod assembly 50 and the massage assembly 60 connected to the eccentric shaft 462 of the fixed eccentric member 46 and the connecting rod assembly 50 and the massage assembly 60 connected to the eccentric shafts 472a and 472b of the first movable eccentric member 47a and the second movable eccentric member 47b move alternately, thereby realizing an alternating massage of the user's waist. The massage method is both tense and relaxed, and the consumer feels very comfortable. At this time, the eccentric shaft 462 on one of the fixed eccentric members 46 and the eccentric shaft 472a on the corresponding first movable eccentric member 47a are different axes, that is, they are not coaxial; the eccentric shaft 462 on the other fixed eccentric member 46 and the eccentric shaft 472b on the corresponding second movable eccentric member 47b are also different axes, that is, they are not coaxial.

[0057] Since the massage component 60 will generate resistance during actual use, when the output shaft 45 switches between forward and reverse rotation, the second pin 48 will abut against the limiting grooves 473a and 473b from one end to the other, thereby causing the first and second movable eccentric members 47a and 47b to rotate relative to the output shaft 45 by a certain angle. This angle is the included angle of the limiting grooves 473a and 473b.

[0058] If the user does not use the waist massager 100 and presses the power button 12 for an extended period of time, the waist massager 100 will turn off and the motor 41 will stop moving.

[0059] It is understandable that the forward and reverse rotation mode of the motor 41 of the waist massager 100 can also be preset, for example, by setting the time on the controller of the circuit board 20, such as once every five, eight, or ten minutes. It is not limited to pressing the power button 12.

[0060] It is understandable that the first movable eccentric component 47a and the second movable eccentric component 47b can also be replaced by the fixed eccentric component 46. That is, the four sets of drive components 40 move synchronously to form a kneading action regardless of whether they rotate forward or backward, without interleaving motion. This is also a feasible approach.

[0061] Compared with existing massagers, this utility model of a waist massager has significant advantages: 1. An eccentric component is installed at the output shaft end, which drives a second connecting rod to swing back and forth via a first connecting rod; the rotating shafts on the second and third connecting rods are rotatably connected to the connecting rod fixing seat; the massage component is movably connected to the second and third connecting rods via the rotating shafts, and under the drive of the second connecting rod, the massage component moves back and forth, forming a kneading action, with a stable and reliable movement. 2. The massage component is equipped with a soft protective sleeve to prevent injury to the human body. 3. The outer sides of the second and third connecting rods are respectively provided with arc-shaped protective surfaces, the axis of which is coaxial with the rotation axis of the connecting rod, which can isolate the inside of the machine from the outside throughout the entire operating cycle, preventing mechanical movement from causing injury to the human body and preventing foreign objects from entering the machine and causing damage. 4. Compared to existing technologies, this new type of waist massager reduces one motor, thus decreasing weight and meeting the requirement that the waist cannot bear excessive weight. Compared to existing technologies with two motors and two cumbersome drive systems, this new type of waist massager is smaller in size and lower in cost. 5. This new type of massager achieves switching between synchronous and staggered operation of the massage components by changing the forward and reverse rotation of the motor, providing a gentle, easing massage that is very comfortable for the user.

[0062] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waist massager, comprising a housing, a circuit board disposed within the housing, and a rechargeable battery supplying power to the circuit board, characterized in that: It also includes a drive assembly, a linkage assembly, and a massage assembly, wherein the drive assembly drives the linkage assembly, and the linkage assembly drives the massage assembly to perform kneading massage on the waist. The drive assembly includes a motor, two symmetrically arranged double gears, two symmetrically arranged output gears, and two symmetrically arranged output shafts. The motor is provided with a motor output shaft. The two double gears respectively cooperate with worm gears provided at both ends of the motor output shaft. Each double gear meshes with a corresponding output gear and drives the output gear. Each output gear is fixedly connected to a corresponding output shaft. A fixed eccentric member is fixedly connected to both ends of one output shaft, and a first movable eccentric member is movably connected to both ends of the other output shaft. Another fixed eccentric member and a second movable eccentric member are also fixedly connected to both ends of the other output shaft. The two fixed eccentric components, the first movable eccentric component, and the second movable eccentric component are all connected to a linkage assembly and drive the linkage assembly to move; each linkage assembly is connected to a corresponding massage component and drives the massage component to perform kneading motion.

2. The waist massager according to claim 1, characterized in that: It also includes a heating button to turn on the heating function of the massage component. The massage component includes a palm part and finger parts. The palm part is provided with a heating element. Pressing the heating button will power the heating element to generate heat.

3. The waist massager according to claim 1, characterized in that: The fixed eccentric component is provided with an assembly hole, an eccentric shaft and a pin hole. The fixed eccentric component is assembled with the corresponding output shaft through the assembly hole, and a first pin passes through the pin hole and is fixedly connected to the output shaft, thereby fixing the fixed eccentric component on the output shaft.

4. The waist massager according to claim 1, characterized in that: The first and second movable eccentric components are respectively provided with mounting holes, eccentric shafts, and limiting grooves. The first and second movable eccentric components are movably assembled with the output shaft through the mounting holes. A second pin passes through the limiting grooves of the first and second movable eccentric components and is fixedly connected to the output shaft. The limiting grooves restrict the second pin from rotating within the limiting grooves. When the motor rotates in the forward direction and the second pin rotates to one end of the limiting groove, the massage components on the same output shaft synchronously perform kneading movements. When the motor rotates in the reverse direction and the second pin rotates to the other end of the limiting groove, the massage components on the same output shaft alternately perform kneading movements.

5. The waist massager according to claim 1, characterized in that: Each linkage assembly includes a first linkage, a second linkage, a third linkage, and a linkage fixing seat. On one side of the drive assembly, one end of the first linkage is movably connected to the eccentric shaft of the fixed eccentric member. On the other side of the drive assembly, one end of the first linkage is movably connected to the eccentric shafts of the first movable eccentric member and the second movable eccentric member. The other end of the first linkage is movably connected to the upper part of the second linkage. The middle part of the second linkage is movably connected to the linkage fixing seat, and the lower part of the second linkage is movably connected to a support seat provided on the massage assembly. One end of the third linkage is movably connected to the linkage fixing seat, and the other end is movably connected to the support seat of the massage assembly.

6. The waist massager according to claim 5, characterized in that: The link assembly further includes a soft protective sleeve that covers the support base, the second link, and the third link.

7. The waist massager according to claim 2, characterized in that: The finger portion is an elastic finger, with a support inside and a soft material covering the outside.

8. The waist massager according to claim 1, characterized in that: The outer casing is further provided with a charging interface that is electrically connected to the circuit board, and an external power source charges the rechargeable battery through the charging interface.

9. A waist massager, comprising a housing, a circuit board disposed within the housing, and a rechargeable battery supplying power to the circuit board, characterized in that: It also includes a drive assembly, a linkage assembly, and a massage assembly, wherein the drive assembly drives the linkage assembly, and the linkage assembly drives the massage assembly to perform kneading massage on the waist. The drive assembly includes a motor, two symmetrically arranged double gears, two symmetrically arranged output gears, and two symmetrically arranged output shafts. The motor has a motor output shaft. The two double gears respectively cooperate with worm gears located at both ends of the motor output shaft. Each double gear meshes with a corresponding output gear and drives the output gear. Each output gear is fixedly connected to a corresponding output shaft. One output shaft has a fixed eccentric component fixedly connected to both ends and a first movable eccentric component movably connected to both ends. The other output shaft also has another fixed eccentric component fixedly connected to both ends and a second movable eccentric component movably connected to both ends. The two fixed eccentric components, the first movable eccentric component, and the second movable eccentric component are all connected to a linkage assembly and drive the linkage assembly to move; each linkage assembly is connected to a corresponding massage component and drives the massage component to perform kneading motion. Both the first and second movable eccentric components are provided with limiting grooves. A pin passes through the limiting grooves of the first and second movable eccentric components respectively and is fixedly connected to the output shaft. The limiting grooves restrict the pin from rotating within the limiting grooves. When the motor rotates in the forward direction, when the pin rotates to one end of the limiting groove, the two massage components on the same output shaft perform kneading motions synchronously. When the motor rotates in the reverse direction, when the pin rotates to the other end of the limiting groove, the two massage components on the same output shaft perform kneading motions alternately.

10. The waist massager according to claim 9, characterized in that: Each linkage assembly includes a first linkage, a second linkage, a third linkage, and a linkage fixing seat. On one side of the drive assembly, one end of the first linkage is movably connected to the eccentric shaft of the fixed eccentric member. On the other side of the drive assembly, one end of the first linkage is movably connected to the eccentric shafts of the first movable eccentric member and the second movable eccentric member. The other end of the first linkage is movably connected to the upper part of the second linkage. The middle part of the second linkage is movably connected to the linkage fixing seat, and the lower part of the second linkage is movably connected to a support seat provided on the massage assembly. One end of the third linkage is movably connected to the linkage fixing seat, and the other end is movably connected to the support seat of the massage assembly.

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