General-purpose reciprocating multi-stage adjustable massage device

Abstract

In the field of massage devices, we provide a general-purpose reciprocating multi-stage adjustable massage device. [Solution] Inside the outer cover, a power mechanism 2 is installed, which includes a fixed base 215, a rod base 212, a steel fixed shaft 214, a drive assembly 211, and a reciprocating lead screw 216. The fixed base and the rod base are fixedly connected by the steel fixed shaft. The drive assembly includes a drive motor 21101. The drive motor is fixedly connected to the lower part of the rod base. The drive end of the drive motor is fixedly connected to the lower end of the reciprocating lead screw, and the upper end of the reciprocating lead screw is rotatably connected inside the fixed base. This invention improves the massage effect by establishing a precise reference for multi-stage adjustment by combining a Hall effect encoder 21102 and a multi-pole magnet ring 21103 to collect the rotation pulse signal of the drive motor in real time and simultaneously determining the initial origin position of the massage component by a return-to-home switch or a finely adjustable Hall origin switch.

Description

Technical Field

[0001] The present invention relates to the technical field of massage devices, and particularly to a general-purpose reciprocating multi-stage adjustable massage device.

Background Art

[0002] A massage device is an instrument that stimulates the muscles and acupoints of the human body through physical means such as vibration, kneading, and pressing to relieve fatigue and relax the body and mind. It is a device that realizes the massage function with a main body of an integral structure. The core of it is to directly act on the muscles and acupoints of the human body through physical means such as vibration, kneading, and pressing to relieve pain and stiffness, promote blood circulation, and relax the body and mind. Representative types include handheld massage rods, patch-type massage devices for the shoulders and necks, massage cushions for fixing the waist, etc. They have the characteristics of being easy to operate, highly portable, and can be directly used without assembly, and are suitable for local precise massage and daily relaxation at any time. However, in the prior art, some massage devices cannot switch between strong and weak according to the degree of muscle pain and stiffness during use. If it is too weak, sufficient effects cannot be obtained. If it is too strong, discomfort and load on the muscles may occur, it is difficult to adapt to parts with different curved shapes, the massage coverage range is uneven, and local parts cannot obtain effective stimulation. Therefore, in order to solve the above problems, a general-purpose reciprocating multi-stage adjustable massage device is provided.

Summary of the Invention

[0003] In view of the problems of the prior art, the present invention provides a general-purpose reciprocating multi-stage adjustable massage device to solve the problem that some massage devices cannot be adjusted according to needs.

[0004] To achieve the above object, the present invention is realized by the following technical means. The general-purpose reciprocating multi-stage adjustable massage device includes an outer cover, and a power mechanism is installed inside the outer cover. The power mechanism includes a drive assembly. The aforementioned drive assembly includes a drive motor that provides power. The drive assembly includes a Hall effect encoder and a first multi-pole magnet ring, and the bottom of the drive motor is mounted on top of the Hall effect encoder. Preferably, the power mechanism further includes the following configuration. A fixed base, a rod base, and a steel fixed shaft. The fixed base and the rod base are fixedly connected by the steel fixed shaft. The drive motor is fixedly connected to the lower part of the rod base. The lower part of the Hall effect encoder is attached to the upper part of the first multi-pole magnet ring. A reciprocating lead screw. The drive end of the drive motor is fixedly connected to the lower end of the reciprocating lead screw, and the upper end of the reciprocating lead screw is rotatably connected inside the fixed base. A reciprocating slider. The reciprocating slider is connected to the outside of the reciprocating lead screw by a screw connection, and the inside of the reciprocating slider is slidably connected to the outside of the steel fixed shaft. Preferably, a vibration motor is fixedly connected inside the reciprocating slider. Preferably, the power mechanism includes a steel shaft inside the reciprocating slider and a shaft fixing component, the steel shaft inside the reciprocating slider is installed parallel to the steel fixing shaft, the steel shaft inside the reciprocating slider passes through the reciprocating slider, both ends are fitted into the shaft fixing component, and the lower end of the reciprocating lead screw rotates within the rod base by the drive of the drive motor. Preferably, the power mechanism further includes the following configuration. A bracket. The outside of the bracket is fixedly connected to the inside of the exterior cover. Helical gear. The drive end of the drive motor meshes with the helical gear. Main transmission shaft. The helical gear is fixed to the outer circumference of the main transmission shaft. First synchronous pulley. The first synchronous pulley is provided on the outside of the main transmission shaft. Ball linear guides. The ball linear guides are fixedly connected to both the front and rear sides of the bracket. A three-way ball slider. The three-way ball slider is slidably connected inside the two ball linear guides, and the three-way ball slider is powered by a synchronous belt to the first synchronous pulley. Preferably, the drive assembly includes a Hall effect encoder and a first multi-pole magnet ring, with a right-side protective cover and a left-side protective cover fixedly connected to the bottom of the bracket, and the drive motor fixed inside the bracket and the right-side protective cover. Preferably, a second multi-pole magnet ring is attached to the bottom of the three-way ball slider, a Hall origin switch is installed inside the bracket, a second synchronous pulley is fixed to the right of the first synchronous pulley, and a reinforcing steel shaft is fixed inside the main transmission shaft. Preferably, a driven pulley-reinforced steel shaft is rotatably connected inside the bracket, a first synchronous driven pulley is fixed to the outer circumference of the driven pulley-reinforced steel shaft, and a second synchronous driven pulley is fixed to the right of the first synchronous driven pulley. Preferably, a synchronous belt tension adjustment slider is detachably connected to the left side of the three-way ball slider, and a synchronous belt tension adjustment slide bar is installed inside the tension adjustment slider. Preferably, a synchronous belt tension adjustment nut is screw-connected to the outer circumference of the synchronous belt tension adjustment slide bar, and follower clamps are fixed to both the front and rear interiors of the three-way ball slider.

[0005] This invention provides the following beneficial effects. 1. This invention combines a Hall effect encoder with a multi-pole magnetic ring to collect the rotation pulse signal of the drive motor in real time, and simultaneously determines the initial origin position of the massage component by a home return switch or a finely adjustable Hall home switch, thereby establishing a precise reference for multi-stage adjustment and improving the massage effect. 2. This invention precisely determines the initial position using a second multi-pole magnet ring and a finely adjustable Hall origin switch, and achieves multi-stage positioning in combination with a Hall effect encoder, thereby meeting the usage requirements of the Onahole. The bracket made of engineering plastic integrates the mounting functions of each component and conforms to the internal space of the Onahole, improving the compactness of the structure, while the rubber pad design of the follower clamp protects the synchronization belt and ensures long-term stable operation. [Brief explanation of the drawing]

[0006] [Figure 1] Figure 1 is a schematic diagram of the Hall effect encoder according to Embodiment 1 of the present invention. [Figure 2] Figure 2 is a three-dimensional view of Embodiment 2 of the present invention. [Figure 3] Figure 3 is a schematic diagram of the reciprocating slider according to Embodiment 2 of the present invention. [Figure 4] Figure 4 is a schematic diagram of the fixed base according to Embodiment 2 of the present invention. [Figure 5] Figure 5 is a schematic diagram of the right-side protective cover according to Embodiment 3 of the present invention. [Figure 6] Figure 6 is a schematic diagram of the bracket according to Embodiment 3 of the present invention. [Figure 7] Figure 7 is a schematic diagram of the left protective cover according to Embodiment 3 of the present invention. [Figure 8] Figure 8 is a schematic diagram of the first synchronous pulley according to Embodiment 3 of the present invention. [Figure 9] Figure 9 is a schematic diagram of the helical gear according to Embodiment 3 of the present invention. [Modes for carrying out the invention]

[0007] The technical means of embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specification. Clearly, the embodiments described are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative ingenuity based on the embodiments of the present invention are within the scope of the protection of the present invention.

[0008] Example 1 Please refer to Figures 1 to 9. An embodiment of the present invention provides a general-purpose reciprocating multi-stage adjustable massage device, which includes an outer cover 1. The outer cover 1 not only provides physical protection but also functions as a mounting reference. Inside the outer cover 1 is a power mechanism 2 that provides power output and transmission adjustment. The outer cover 1 is made of engineering plastic and is the outer shell of the massage device. The drive assembly 211 includes a drive motor 21101 that provides power, a Hall effect encoder 21102 for detecting rotational speed and rotational frequency, and a first multi-pole magnet ring 21103 that works in conjunction with the Hall effect encoder 21102 to acquire signals. These three components form a power detection and output unit. The drive motor 21101 is a DC reduction motor. The Hall effect encoder 21102 employs an incremental method. The first multi-pole magnet ring 21103 has a multi-pole permanent magnet structure and generates a magnetic signal as the motor rotates.

[0009] Example 2 Please refer to Figures 1 to 4. The drive assembly 211 of Embodiment 1 is applied to the massage rod of Embodiment 2, and the power mechanism 2 consists of the drive assembly 211, rod base 212, steel shaft 213 inside the reciprocating slider, steel fixed shaft 214, fixed base 215, reciprocating lead screw 216, reciprocating slider 217, vibration motor 218, and shaft fixing part 219. The drive assembly 211 provides power output, the rod base 212 and fixed base 215 constitute the support frame, the steel shaft 213 inside the reciprocating slider and the steel fixed shaft 214 provide guides, the reciprocating lead screw 216 and the reciprocating slider 217 are responsible for power transmission, the vibration motor 218 provides vibration, and the shaft fixing component 219 fixes the steel fixed shaft 214. See Figures 1 to 4. The exterior of the drive motor 21101 is mounted inside the exterior cover 1 to ensure stability when power is outputting. The bottom of the drive motor 21101 is mounted on top of the Hall effect encoder 21102, allowing the Hall effect encoder 21102 to monitor the rotational state of the drive motor 21101 in real time. The lower part of the Hall effect encoder 21102 is mounted in close contact with the upper part of the first multipole magnet ring 21103, which rotates synchronously with the drive motor 21101, providing a stable magnetic signal input to the Hall effect encoder 21102. The upper part of the drive motor 21101 is fixedly connected to the lower part of the rod base 212, which serves as a support. The rod base 212 is made of aluminum alloy and is corrosion-resistant. The upper part of the rod base 212 is fixedly connected to the lower part of the steel fixed shaft 214, which provides longitudinal support to the overall structure. The upper part of the steel fixed shaft 214 is fixedly connected to the lower part of the fixed base 215, forming a stable longitudinal support frame. The drive end of the drive motor 21101 is fixedly connected to the lower part of the reciprocating lead screw 216 via a coupling or spline joint, causing the reciprocating lead screw 216 to rotate synchronously. The upper end of the reciprocating lead screw 216 is rotatably connected via a bearing to a mounting hole pre-formed inside the fixed base 215. The interior of the reciprocating slider 217 is fixedly connected to the outside of the vibration motor 218, thereby providing support to the reciprocating slider 217. The steel shaft 213 inside the reciprocating slider passes laterally through a pre-formed through hole in the reciprocating slider 217 and is fitted into the shaft fixing part 219, thereby performing a lateral guide and limiting action. The interior of the reciprocating slider 217 is slidably connected to the outside of the steel fixed shaft 214 via a linear bushing, ensuring the linear accuracy of the reciprocating motion.The lower end of the reciprocating lead screw 216 is rotatably connected through a bearing to a pre-provided mounting position inside the rod base 212, forming a rotational support structure. Specifically, the drive motor 21101 drives the reciprocating slider 217 on the reciprocating lead screw 216 to perform precise reciprocating movement. The steel fixed shaft 214 and the steel shaft inside the reciprocating slider 213 jointly reinforce the guidance of the reciprocating lead screw 216, ensuring the stability and straightness of the reciprocating movement. The forward and reverse rotation of the motor drives the lead screw, which is converted into linear motion by a screw connection, and the dual-shaft structure suppresses swaying. After startup, the reciprocating slider 217 moves towards the drive motor 21101 side, activating a preset home return switch to precisely determine the starting position of the reciprocating movement. The home return switch is a micro limit switch, and after activation, it sends a signal to the main board. Subsequently, the microcontroller control board (main board) collects signals from the hall effect encoder 21102 at the rear of the drive motor 21101 in real time and calculates the number of output pulses per motor rotation. The microcontroller captures these pulses and improves the measurement accuracy through multiplication. Furthermore, it calculates the number of motor rotations required for the reciprocating slider 217 to move to a predetermined position and precisely controls the stop positions of multi-stage reciprocation to meet the adjustment requirements for different massage positions. It calculates the rotation speed based on the lead of the lead screw, controls the motor by pulse width modulation (PWM), and supports multi-stage positioning.

[0010] Example 3 Please refer to FIGS. 5 to 9. The embodiment of the present invention provides a general-purpose reciprocating multi-stage adjustable massage device. The drive assembly 211 of Example 1 is applied to the onahole of Example 3 and includes an exterior cover 1 and a seal cover 3 for dust and water protection. The exterior cover 1 and the seal cover 3 are connected by screw connection, and the exterior cover 1 here is the outer shell of the onahole. Inside the exterior cover 1, a power mechanism 2 is installed, and the power mechanism 2 further includes a bracket 221. The seal cover 3 realizes dust and water protection by adding a sealing ring, and the bracket 221 integrates the mounting functions of each component. Bracket 221 is molded from engineering plastic, and its exterior is fixed to a pre-installed mounting surface inside the exterior cover 1 via bolts. The right protective cover 222 and the left protective cover 223 are fixed to the bottom of bracket 221 via screws, and the left and right protective covers 222 and 223 work together to prevent the intrusion of dust or foreign matter. Ball linear guides 224 are fixed to both the front and rear sides of bracket 221 via bolts. A three-way ball slider 225 is slidably connected inside the two ball linear guides 224 via balls, allowing the three-way ball slider 225 to perform smooth reciprocating motion along the ball linear guides 224. A second multipole magnet ring 226 is attached to its bottom, fixed with adhesive. A Hall origin switch 227 is mounted inside bracket 221 at a position corresponding to the second multipole magnet ring 226, and the second multipole magnet ring 226 and the Hall origin switch 227 work together to detect the initial position. The Hall origin switch 227 is a single-pole type and its position is adjustable. Inside bracket 221, a first synchronous pulley 228 is rotatably connected via a shaft and bearings. The shaft is made of high-quality steel, the bearings are small-diameter deep-groove ball bearings, and the first synchronous pulley 228 is made of aluminum alloy. The outside of the ball linear guide 224 is slidably fitted into a pre-formed slide groove inside bracket 221. The second synchronous driven pulley 2218 and the first synchronous pulley 228 are power-driven via a synchronous belt to transmit power and change direction. The synchronous belt is made of polyurethane and has a toothed meshing structure. To the right of the first synchronous pulley 228, a second synchronous pulley 229 is fixed via a parallel key coupling, and the number of teeth on the second synchronous pulley 229 is the same as that of the first synchronous pulley 228. Inside the second synchronous pulley 229, the main transmission shaft 2210 is fixedly connected via a spline coupling. A first synchronous pulley 228 is provided at a corresponding external position of the main transmission shaft 2210, and the synchronous pulley is fixed by a set screw to prevent relative rotation. Inside the main transmission shaft 2210, a reinforcing steel shaft 2212 is fixed by interference compounding, thereby improving the structural strength and torsional resistance of the main transmission shaft 2210. The reinforcing steel shaft 2212 is hardened and tempered to enhance its torsional strength. A helical gear 2211 is fixed to the outer circumference of the main transmission shaft 2210 by key coupling. The helical gear 2211 is used to change the direction of power transmission, and the key specifications are standardized. A synchronous belt tension adjustment slider 2213 is detachably connected via bolts to the left side of the three-way ball slider 225 for easy maintenance and tension adjustment. A synchronous belt tension adjustment slide bar 2214 passes through the synchronous belt tension adjustment slider 2213, and a synchronous belt tension adjustment nut 2215 is screw-coupled to its outer circumference. The tension of the synchronous belt is adjusted by rotating the nut 2215, ensuring transmission stability. Inside the bracket 221, a driven pulley reinforced steel shaft 2216 is rotatably supported via bearings. A first synchronous driven pulley 2217 is fixed to the outer circumference of the driven pulley reinforced steel shaft 2216 by key coupling, and its structure is identical to that of the first synchronous pulley 228. A second synchronous driven pulley 2218 is fixed to the right side of the first synchronous driven pulley 2217 by integral molding or key coupling, forming a driven pulley assembly that changes the transmission direction. Follower clamps 2219 are fixed by bolts to both the front and rear sides inside the three-way ball slider 225, holding the synchronous belt and moving the three-way ball slider 225 synchronously. Rubber pads inside the clamps protect the belt. The drive motor 21101 is fixed by bolts within a mounting cavity formed by a bracket 221 and a right-side protective cover 222, which is formed to fit the outer shell. The drive end of the drive motor 21101 meshes with a helical gear 2211 via a gear meshing structure, smoothly transmitting power. Specifically, the drive motor 21101, in combination with a reduction gearbox, drives a drive synchronous pulley set consisting of a main transmission shaft 2210, a first synchronous pulley 228, and a second synchronous pulley 229, and a driven pulley set consisting of a first synchronous driven pulley 2217 and a second synchronous driven pulley 2218, causing the three-way ball slider 225 to reciprocate smoothly via a synchronous belt. Here, due to the ball rolling structure between the ball linear guide 224 and the three-direction ball slider 225, the frictional force during reciprocating motion is significantly reduced, the smoothness of the motion is improved, and wear is suppressed. The principle of multi-stage positioning is as follows. After startup, the drive motor 21101 rotates forward, moving the three-direction ball slider 225 in the direction of the hall origin switch 227. When the second multi-pole magnet ring 226 on the three-direction ball slider 225 approaches the hall origin switch 227, the hall origin switch 227 triggers a signal, and the main board receives this signal to determine the zero point position. Then, the microcontroller on the main board collects pulse signals from the hall effect encoder 21102 provided at the rear of the drive motor 21101 and calculates the number of pulses per rotation of the drive motor 21101. Furthermore, the number of rotations of the drive motor 21101 required for the three-direction ball slider 225 to move to a predetermined position is calculated, thereby precisely controlling the stop position of multi-stage positioning to achieve multi-stage and multi-position massage adjustment.

[0011] Operating principle: When the massage device is in use, rotational power is output from the drive end of the drive motor 21101 when it is started. First, the first multi-pole magnet ring 21103 is rotated synchronously, and a magnetic signal is supplied to the Hall effect encoder 21102 so that the rotational speed can be detected. Then, the power is transmitted to the lower end of the reciprocating lead screw 216 via a coupling or spline joint. When the reciprocating lead screw 216 rotates, the rotational motion of the screw 216 is converted into linear reciprocating motion of the reciprocating slider 217 along the steel fixed shaft 214, as the reciprocating lead screw 216 and the reciprocating slider 217 are screw-coupled and the reciprocating slider 217 is mounted on the steel fixed shaft 214 via a linear bush. At the same time, the steel shaft 213 inside the reciprocating slider passes through the reciprocating slider 217 and is fixed to the shaft fixing part 219, further suppressing the radial oscillation of the reciprocating slider 217. The vibration motor 218 performs linear reciprocating motion in synchronization with the reciprocating slider 217, and generates vibrations by starting itself, ultimately achieving a massage effect. When using the onahole, when the drive motor 21101 (in combination with the reduction gearbox) starts up, rotational power is output from the drive end, and power is transmitted to the helical gear 2211 via the meshing of the drive end gear and the helical gear 2211. The helical gear 2211 is fixedly mounted on the outer circumference of the main transmission shaft 2210 (a reinforcing steel shaft 2212 is positioned through the main transmission shaft 2210 to enhance torsional rigidity). When the gear rotates, it causes the main transmission shaft 2210 to rotate synchronously, completing the conversion of the power transmission direction. As the main transmission shaft 2210 rotates, the second synchronous pulley 229 on its exterior rotates synchronously with the shaft and drives the first synchronous pulley 228 via a key coupling. The first synchronous pulley 228 then transmits power to the second synchronous driven pulley 2218 and the first synchronous driven pulley 2217, which are fixed to the driven pulley reinforcing steel shaft 2216, via a synchronous belt, forming a closed-loop belt transmission path. In this process, the synchronous belt tension adjustment slider 2213, the synchronous belt tension adjustment slide bar 2214, and the synchronous belt tension adjustment nut 2215 work together to adjust the tension of the synchronous belt and prevent slippage. The three-way ball slider 225 is fixed to the synchronous belt via a follower clamp 2219, and as the synchronous belt moves, the three-way ball slider 225 reciprocates linearly along the ball linear guide 224 on the bracket 221, achieving a massage effect.

[0012] Although embodiments of the present invention have been illustrated and described, those skilled in the art will understand that various modifications, alterations, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention shall be defined by the appended claims and their equivalents. [Explanation of symbols]

[0013] 1. Exterior cover 2 Power mechanism 211 Drive Assembly 21101 Drive motor 21102 Hall effect encoder 21103 First Multipole Magnet Ring 212 Rod Base 213 Reciprocating slider with internal steel shaft 214 Steel fixed shaft 215 Fixed base 216 Reciprocating Lead Screw 217 Reciprocating Slider 218 Vibration motor 219 Shaft fixing parts 221 Bracket 222 Right side protective cover 223 Left side protective cover 224 Ball Linear Guide 225 Three-way ball slider 226 Second Multipole Magnet Ring 227 Hall Origin Switch 228 First synchronized pulley 229 Second synchronized pulley 2210 Main transmission shaft 2211 Helical gear 2212 Steel shaft for reinforcement 2213 Synchronized Belt Tension Adjustment Slider 2214 Synchronized Belt Tension Adjustment Slide Bar 2215 Synchronized belt tension adjustment nut 2216 Driven pulley with reinforced steel shaft 2217 First synchronous driven pulley 2218 Second synchronous driven pulley 2219 Follower Clamp

Claims

1. A general-purpose reciprocating multi-stage adjustable massage device equipped with a power mechanism (2), The power mechanism (2) includes a drive assembly (211), The drive assembly (211) includes a drive motor (21101) that provides power, a Hall effect encoder (21102), and a first multi-pole magnet ring (21103), the bottom of the drive motor (21101) being mounted on top of the Hall effect encoder (21102), The power mechanism (2) further includes a fixed base (215), a rod base (212), a steel fixed shaft (214), a reciprocating lead screw (216), a reciprocating slider (217), a steel shaft inside the reciprocating slider (213), and a shaft fixing part (219). The fixed base (215) and the rod base (212) are fixedly connected by the steel fixed shaft (214). The drive end of the drive motor (21101) is fixedly connected to the lower end of the reciprocating lead screw (216), The reciprocating slider (217) is connected to the outside of the reciprocating lead screw (216) by a screw connection, and the inside of the reciprocating slider (217) is slidably connected to the outside of the steel fixed shaft (214), and a vibration motor (218) is fixedly connected inside the reciprocating slider (217). Both ends of the steel shaft (213) inside the reciprocating slider are fitted into the shaft fixing part (219). The power mechanism (2) further includes a bracket (221), a helical gear (2211), a main transmission shaft (2210), a first synchronous pulley (228), a ball linear guide (224), and a three-way ball slider (225). The outside of the bracket (221) is fixedly connected to the inside of the exterior cover (1). The drive end of the drive motor (21101) meshes with the helical gear (2211), The helical gear (2211) is fixed to the outer circumference of the main transmission shaft (2210), The first synchronous pulley (228) is provided outside the main transmission shaft (2210). The ball linear guides (224) are fixedly connected to both the front and rear sides of the bracket (221). The three-way ball slider (225) is transmitted to the first synchronous pulley (228) via a synchronous belt. A driven pulley reinforced steel shaft (2216) is rotatably supported inside the bracket (221), a first synchronous driven pulley (2217) is fixed to the outer circumference of the driven pulley reinforced steel shaft (2216), a second synchronous driven pulley (2218) is fixed to the right side of the first synchronous driven pulley (2217), a synchronous belt tension adjustment slider (2213) is detachably connected to the left side inside the three-way ball slider (225), a synchronous belt tension adjustment slide bar (2214) passes through the synchronous belt tension adjustment slider (2213), a synchronous belt tension adjustment nut (2215) is screw-connected to the outer circumference of the synchronous belt tension adjustment slide bar (2214), and follower clamps (2219) are fixed to both the front and rear sides inside the three-way ball slider (225). A general-purpose reciprocating multi-stage adjustable massage device featuring the following characteristics.

2. The power mechanism (2) further includes a fixed base (215), a rod base (212), a steel fixed shaft (214), a reciprocating lead screw (216), and a reciprocating slider (217). The fixed base (215) and the rod base (212) are fixedly connected by the steel fixed shaft (214). The drive motor (21101) is fixedly connected to the lower part of the rod base (212). The lower part of the Hall effect encoder (21102) is attached to the upper part of the first multi-pole magnet ring (21103). The drive end of the drive motor (21101) is fixedly connected to the lower end of the reciprocating lead screw (216), and the upper end of the reciprocating lead screw (216) is rotatably connected inside the fixed base (215). The reciprocating slider (217) is connected to the outside of the reciprocating lead screw (216) by a screw connection, and the inside of the reciprocating slider (217) is slidably connected to the outside of the steel fixed shaft (214). A general-purpose reciprocating multi-stage adjustable massage device according to claim 1, characterized by the above.

3. The general-purpose reciprocating multi-stage adjustable massage device according to claim 2, characterized in that a vibration motor is fixedly connected inside the reciprocating slider (217).

4. The power mechanism (2) includes a steel shaft (213) inside the reciprocating slider and a shaft fixing part (219), the steel shaft (213) inside the reciprocating slider is installed parallel to the steel fixing shaft (214), the steel shaft (213) inside the reciprocating slider passes through the reciprocating slider (217), both ends of the steel shaft (213) inside the reciprocating slider are fitted into the shaft fixing part (219), and the lower end of the reciprocating lead screw (216) rotates within the rod base (212) by the drive of the drive motor (21101). A general-purpose reciprocating multi-stage adjustable massage device according to claim 2, characterized by the above.

5. The power mechanism (2) further includes a bracket (221), a helical gear (2211), a main transmission shaft (2210), a first synchronous pulley (228), a ball linear guide (224), and a three-way ball slider (225). The outside of the bracket (221) is fixedly connected to the inside of the exterior cover (1). The drive end of the drive motor (21101) meshes with the helical gear (2211), The helical gear (2211) is fixed to the outer circumference of the main transmission shaft (2210), The first synchronous pulley (228) is provided outside the main transmission shaft (2210). The ball linear guides (224) are fixedly connected to both the front and rear sides of the bracket (221). A three-way ball slider (225) is slidably connected inside the ball linear guide (224), and the three-way ball slider (225) is transmitted to the first synchronous pulley (228) via a synchronous belt. A general-purpose reciprocating multi-stage adjustable massage device according to claim 4, characterized by the above.

6. The drive assembly (211) includes a Hall effect encoder (21102) and a first multi-pole magnet ring (21103), the right protective cover (222) and the left protective cover (223) are fixedly connected to the bottom of the bracket (221), and the drive motor (21101) is fixed inside the bracket (221) and the right protective cover (222). A general-purpose reciprocating multi-stage adjustable massage device according to claim 5, characterized by the above.

7. A second multi-pole magnet ring (226) is attached to the bottom of the three-way ball slider (225), a Hall origin switch (227) is attached inside the bracket (221), a second synchronous pulley (229) is fixed to the right side of the first synchronous pulley (228), and a reinforcing steel shaft (2212) is fixed inside the main transmission shaft (2210). A general-purpose reciprocating multi-stage adjustable massage device according to claim 6, characterized by the above.

8. A driven pulley reinforced steel shaft (2216) is rotatably connected inside the bracket (221), a first synchronous driven pulley (2217) is fixed to the outer circumference of the driven pulley reinforced steel shaft (2216), and a second synchronous driven pulley (2218) is fixed to the right side of the first synchronous driven pulley (2217). A general-purpose reciprocating multi-stage adjustable massage device according to claim 7, characterized by the above.

9. A synchronous belt tension adjustment slider (2213) is detachably connected to the left side of the three-way ball slider (225), and a synchronous belt tension adjustment slide bar (2214) is installed inside the tension adjustment slider (2213). A general-purpose reciprocating multi-stage adjustable massage device according to claim 8, characterized by the above.

10. A synchronous belt tension adjustment nut (2215) is screw-connected to the outer circumference of the synchronous belt tension adjustment slide bar (2214), and follower clamps (2219) are fixed to both the front and rear interiors of the three-way ball slider (225). A general-purpose reciprocating multi-stage adjustable massage device according to claim 9, characterized by the above.

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