A screw rod belt wheel secondary telescopic arm for a massage chair magnet therapy head
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAOZHONGHAO HEALTH PROD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-07
AI Technical Summary
[0002]随着现代人对健康和舒适需求的不断提升，传统按摩椅的功能已难以满足多样化的市场需求，并且由于按摩椅、足浴椅等器材使用的方法是通过人体坐或躺靠在上面，从而进行按摩和理疗，所以其主要的按摩部位在于人体的后侧以及足部位置，缺少对人体前侧的理疗功能，目前市场上出现了一款理疗头可以翻转至按摩椅前侧的产品，但是，由于按摩椅上的装配空间有限，如何带动理疗头长行程的伸缩是一个需要克服的难题，因为通常理疗头是需要电推杆或螺杆进行带动，若螺杆或电推杆过长就会影响按摩椅的正常使用
[0003]本实用新型的目的：为了克服现有技术的缺陷，本实用新型提供了一种用于按摩椅磁疗头的丝杆带轮二级伸缩臂，通过丝杆带动滑动架前后滑移，实现一级伸缩，同时在滑移架滑动的时候，通过齿轮与第一齿条的配合可以带动理疗头进一步的伸缩，实现二级伸缩，并且仅需一组动力源即可。
Smart Images
Figure CN224598398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of massager technology, and in particular to a two-stage telescopic arm with lead screw and pulley for a magnetic therapy head of a massage chair. Background Technology
[0002] With the increasing demand for health and comfort among modern people, the functions of traditional massage chairs can no longer meet the diverse market needs. Furthermore, since massage chairs and foot bath chairs are used by sitting or lying on them to receive massage and therapy, their main massage areas are the back of the body and the feet, lacking therapeutic functions for the front of the body. Currently, a product has appeared on the market where the therapy head can be flipped to the front of the massage chair. However, due to the limited assembly space on the massage chair, how to drive the long-stroke extension and retraction of the therapy head is a problem that needs to be overcome. This is because the therapy head usually requires an electric push rod or screw to drive it. If the screw or electric push rod is too long, it will affect the normal use of the massage chair. Utility Model Content
[0003] The purpose of this utility model is to overcome the defects of the prior art. This utility model provides a two-stage telescopic arm with a lead screw and pulley for a magnetic therapy head of a massage chair. The lead screw drives the sliding frame to slide back and forth to achieve the first stage of telescopic movement. At the same time, when the sliding frame slides, the gear and the first rack can drive the therapy head to extend and retract further to achieve the second stage of telescopic movement. Moreover, only one power source is required.
[0004] This utility model discloses a two-stage telescopic arm with screw and pulley for a magnetic therapy head of a massage chair, including an assembly frame, a sliding frame guided and slidable on the assembly frame, and a sliding frame drive assembly for driving the sliding frame to extend and retract. The therapy head is disposed on the sliding frame. The assembly frame is characterized by having a first rack arranged in a front-rear direction, and the sliding frame having a drive wheel and a driven wheel. Two sets of driven wheels are spaced apart in the front-rear direction. The drive wheel is rotatably disposed on the sliding frame and meshes with the first rack. The driven wheel is rotatably disposed on the sliding frame and is linked with the drive wheel. A synchronous belt is fitted onto both sets of driven wheels. A telescopic arm is slidably disposed on the sliding frame, and the therapy head is disposed on the telescopic arm. The telescopic arm is guided and slidable on the sliding frame and clamped on the synchronous belt.
[0005] Using the above technical solution, when in use, the mounting frame is assembled onto the backrest of the massage chair. When the therapy head is located at the front of the backrest, the sliding frame can be extended and retracted by the sliding frame drive assembly to achieve primary extension and retraction. At the same time, the transmission wheel will travel on the first rack. Since the first rack is stationary, the transmission wheel will rotate relative to it, thereby driving the driven wheel to rotate, which in turn drives the synchronous belt to transport. At this time, since the telescopic arm is clamped on the synchronous belt and guided to slide on the sliding frame, the telescopic arm can also extend further relative to the sliding frame to achieve secondary extension. This method increases the extension and retraction stroke while reducing the drive cost. The preferred method is to use a flipping method to flip the therapy head to the front of the backrest. Of course, the mounting frame can also remain stationary, and the therapy head can be placed directly on the front of the backrest.
[0006] A further feature of this invention is that the sliding frame drive assembly includes a screw rotatably mounted on the assembly frame and a drive motor for driving the screw to rotate. A slider with a threaded engagement is fitted onto the screw, and the slider is fixedly mounted on the sliding frame.
[0007] By adopting the above technical solution, the slider can be moved relative to the motor by rotating the screw. Furthermore, the use of threaded engagement can improve the adjustment accuracy, and the structural layout is relatively reasonable.
[0008] A further feature of this invention is that the top of the telescopic arm is U-shaped to form a guide rail, and it also includes a suspension frame that slides on the guide rail and a first adjusting drive component that drives the suspension frame to slide. The physiotherapy head is mounted on the suspension frame, and the suspension frame is also provided with a second adjusting drive component that drives the physiotherapy head to rotate up and down.
[0009] Using the above technical solution, when the user is lying on the massage chair or foot bath chair, the therapy head can be located in front of the body. The lateral displacement of the therapy head can be adjusted by the first adjustment drive component, and the rotation angle of the therapy head can be adjusted by the second adjustment drive component, so that the therapy head can be used in multiple directions and at multiple angles.
[0010] Further features of this invention include a guide groove along the bottom contour of the guide rail and an anti-detachment protrusion along the top contour of the guide rail. A first traveling wheel is provided on the suspension frame at the guide groove position. The first traveling wheel is rotatably disposed in the guide groove and abuts against the inner walls on both sides of the guide groove to form a limiting structure for upward pulling and forward and backward swaying. A second traveling wheel is provided on the suspension frame outside the anti-detachment protrusion. The bottom of the second traveling wheel abuts against the top of the guide rail, and the inner side of the second traveling wheel abuts against the anti-detachment protrusion to form a suspension support and an inner sliding anti-detachment structure.
[0011] By adopting the above technical solution, the suspension frame can be suspended on the guide rail by the support of the second traveling wheel, which makes it easy to pull upward. Therefore, through the cooperation of the first traveling wheel and the guide groove, when subjected to an upward force, the first traveling wheel will abut against the bottom of the guide groove to form a limit. When subjected to an external force in the front-back direction, the first traveling wheel will abut against the side walls of the guide groove, thereby preventing it from shaking. It is relatively stable during use. Furthermore, the anti-detachment protrusion abuts against the inner side of the second traveling wheel, which can further increase the stability.
[0012] A further feature of this invention is that the first adjusting drive component is a first drive motor, and a gear that rotates synchronously with the first drive motor is provided on the output shaft of the first drive motor. A second rack that matches the gear is provided on the guide rail along its inner contour, and the gear meshes with the second rack.
[0013] Using the above technical solution, the first drive motor can drive the gear to rotate, and at the same time, because the gear meshes with the second rack, the suspension frame can be moved as a whole. The guide groove is preferably formed by the outer wall of the convex strip and the second rack. At this time, the first traveling wheel is preferably provided with two sets and clamped on the convex strip. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure when the present invention is applied; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of part of the structure of this utility model; Figure 4 This is a diagram showing the alignment of the guide rail and the therapy head of this utility model. Figure 5 for Figure 4 Another perspective structural diagram; Figure 6 This is a schematic diagram of the guide rail structure of this utility model; Figure 7 This is a diagram showing the connection between the suspension frame and the physiotherapy disengagement mechanism of this utility model; Figure 8 for Figure 7 Another perspective structural diagram; Figure 9 for Figure 4 Sectional view. Detailed Implementation
[0015] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings: In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0016] This utility model discloses a two-stage telescopic arm with a lead screw and pulley for a magnetic therapy head of a massage chair. It includes an assembly frame 1, a sliding frame 2 guided and slidable on the assembly frame 1, and a sliding frame drive assembly 3 for driving the sliding frame 2 to extend and retract. A therapy head 8 is mounted on the sliding frame 2. In this embodiment, the assembly frame 1 is provided with a first rack 4 arranged in a front-to-back direction (the front-to-back direction is the length direction of the assembly frame 1; typically, the assembly frame 1 can be flipped to adjust its height and position, and its front-to-back direction will change accordingly). The sliding frame 2 is provided with a drive wheel 5 and a driven wheel 6. Two sets of driven wheels 6 are spaced apart in the front-to-back direction. The drive wheel 5 rotates... The driven wheel 6 is mounted on the sliding frame 2 and meshes with the first rack 4. It is rotatably mounted on the sliding frame 2 and works in conjunction with the transmission wheel 5 (preferably, one of the driven wheels 6 and the transmission wheel 5 are mounted on the same rotating shaft, so that when the transmission wheel 5 rotates, it can drive the rotating shaft to rotate, thereby driving the driven wheel 6 to rotate). Synchronous belts are fitted on both sets of driven wheels 6. A telescopic arm 7 is slidably mounted on the sliding frame 2. The physiotherapy head 8 is mounted on the telescopic arm 7. The telescopic arm 7 is guided to slide on the sliding frame 2 and clamped on the synchronous belt 9. Limiting plates are preferably provided on both sides of the driven wheel 6 and the transmission wheel 5 to prevent the driven wheel 6 and the transmission wheel 5 from shifting when rotating.
[0017] Using the above technical solution, when in use, the mounting frame 1 is assembled onto the backrest of the massage chair. When the therapy head 8 is located at the front of the backrest, the sliding frame 2 can be extended and retracted by the sliding frame drive assembly 3 to achieve primary extension and retraction. At the same time, the transmission wheel will travel on the first rack 4. Since the first rack 4 is stationary, the transmission wheel 5 will rotate relative to it, thereby driving the driven wheel 6 to rotate, which in turn drives the synchronous belt 9 to transport. At this time, since the telescopic arm 7 is clamped on the synchronous belt 9 and guided to slide on the sliding frame 2, the telescopic arm 7 can also extend further relative to the sliding frame 2 to achieve secondary extension. This method increases the extension and retraction stroke while reducing the drive cost. The extension of the telescopic arm 7 can also play a role in avoiding direct contact between the therapy head 8 and the human body.
[0018] The sliding frame drive assembly 3 includes a screw 31 rotatably mounted on the assembly frame 1 and a drive motor 32 that drives the screw 31 to rotate. A slider 33 with a threaded engagement is fitted onto the screw 31. The slider 33 is fixedly mounted on the sliding frame 2. The slider 33 can be moved relative to the screw 31 by the drive motor 32 driving the screw 31 to rotate. The threaded engagement method can improve the adjustment accuracy and the structural layout is relatively reasonable.
[0019] The top of the telescopic arm 7 is U-shaped to form a guide rail 10. It also includes a suspension frame 20 that slides on the guide rail 10 and a first adjustment drive 30 that drives the suspension frame 20 to slide. The therapy head 8 is mounted on the suspension frame 20, and the suspension frame 20 is also provided with a second adjustment drive 40 that drives the therapy head 8 to rotate up and down. When the user is lying on the massage chair or foot bath chair, the therapy head 8 can be located in front of the body. The first adjustment drive 30 can be used to adjust the lateral displacement of the therapy head 8, and the second adjustment drive 40 can be used to adjust the rotation angle of the therapy head 8, so that the therapy head 8 can be used in multiple directions and at multiple angles.
[0020] It also includes a guide groove 50 along the bottom contour of the guide rail 10 and an anti-detachment protrusion 60 along the top contour of the guide rail 10. A first traveling wheel 70 is provided on the suspension frame 20 at the position of the guide groove 50. The first traveling wheel 70 is rotatably disposed in the guide groove 50 and abuts against the inner walls on both sides of the guide groove 50 to form a limiting structure for upward pull-out and back-and-forth swaying. A second traveling wheel 80 is provided on the suspension frame 20 outside the anti-detachment protrusion 60. The bottom of the second traveling wheel 80 abuts against the top of the guide rail 10, and the inner side of the second traveling wheel 80 abuts against the anti-detachment protrusion 60 to form a suspension. The support and inner sliding anti-detachment structure, supported by the second traveling wheel 80, allows the suspension frame 20 to be suspended on the guide rail 10, making it easy to pull upwards. Therefore, through the cooperation of the first traveling wheel 70 and the guide groove 50, when subjected to an upward force, the first traveling wheel 70 will abut against the bottom of the guide groove 50 to form a limit. When subjected to an external force in the front-back direction, the first traveling wheel 70 will abut against the side walls of the guide groove 50, thereby preventing it from shaking and making it more stable during use. Furthermore, the anti-detachment protrusion 60 abuts against the inner side of the second traveling wheel 80, which can further increase stability.
[0021] The first adjustment drive component 30 is a first drive motor. A gear 90 that rotates synchronously with the output shaft of the first drive motor is provided. A second rack 100 that matches the gear 90 is provided along the inner contour of the guide rail 10. The gear 90 meshes with the second rack 100. The first drive motor can drive the gear 90 to rotate. At the same time, because the gear 90 meshes with the second rack 100, the suspension frame 20 can be moved as a whole. The guide groove 50 is preferably formed by a convex strip and the outer wall of the second rack 100. At this time, the first traveling wheel 70 is preferably provided with two sets and clamped on the convex strip.
Claims
1. A two-stage telescopic arm with lead screw and pulley for a magnetic therapy head of a massage chair, comprising an assembly frame (1), a sliding frame (2) guided and slidably mounted on the assembly frame (1), and a sliding frame drive assembly (3) for driving the sliding frame (2) to extend and retract, wherein a therapy head (8) is disposed on the sliding frame (2), characterized in that: The assembly frame (1) is provided with a first rack (4) arranged in the front-to-back direction. The sliding frame (2) is provided with a transmission wheel (5) and a driven wheel (6). The driven wheel (6) is arranged in two sets at intervals in the front-to-back direction. The transmission wheel (5) is rotatably mounted on the sliding frame (2) and meshes with the first rack (4). The driven wheel (6) is rotatably mounted on the sliding frame (2) and is linked with the transmission wheel (5). The two sets of driven wheels (6) are fitted with a synchronous belt (9). The sliding frame (2) is slidably provided with a telescopic arm (7). The physiotherapy head (8) is mounted on the telescopic arm (7). The telescopic arm is guided and slid on the sliding frame and clamped on the synchronous belt (9).
2. The two-stage telescopic arm with lead screw and pulley for a magnetic therapy head of a massage chair according to claim 1, characterized in that: The sliding frame drive assembly (3) includes a screw (31) rotatably mounted on the assembly frame (1) and a drive motor (32) for driving the screw (31) to rotate. A slider (33) with a threaded fit is fitted on the screw (31), and the slider (33) is fixedly mounted on the sliding frame (2).
3. A two-stage telescopic arm with lead screw and pulley for a magnetic therapy head of a massage chair according to claim 1 or 2, characterized in that: The top of the telescopic arm (7) is U-shaped to form a guide rail (10), and also includes a suspension frame (20) that slides on the guide rail (10) and a first adjustment drive (30) that drives the suspension frame (20) to slide. The physiotherapy head (8) is mounted on the suspension frame (20), and the suspension frame (20) is also provided with a second adjustment drive (40) that drives the physiotherapy head (8) to rotate up and down.
4. The two-stage telescopic arm with lead screw and pulley for a magnetic therapy head of a massage chair according to claim 3, characterized in that: It also includes a guide groove (50) provided along the bottom contour of the guide rail (10) and an anti-detachment protrusion (60) provided along the top contour of the guide rail (10). A first traveling wheel (70) is provided on the suspension frame (20) at the position of the guide groove (50). The first traveling wheel (70) is rotatably disposed in the guide groove (50) and abuts against the inner walls on both sides of the guide groove (50) to form a limiting structure for upward pulling and back-and-forth swaying. A second traveling wheel (80) is provided on the suspension frame (20) on the outside of the anti-detachment protrusion (60). The bottom of the second traveling wheel (80) abuts against the top of the guide rail (10), and the inner side of the second traveling wheel (80) abuts against the anti-detachment protrusion (60) to form a suspension support and inner sliding anti-detachment structure.
5. The two-stage telescopic arm with lead screw and pulley for a magnetic therapy head of a massage chair according to claim 4, characterized in that: The first adjustment drive (30) is a first drive motor. A gear (90) that rotates synchronously with the output shaft of the first drive motor is provided. A second rack (100) that is adapted to the gear (90) is provided along the inner contour of the guide rail (10). The gear (90) meshes with the second rack (100).