A foot stretching structure for a massage chair and a massage chair

By designing a linkage mechanism between the fixed frame, telescopic frame, and foot massage part on the massage chair, combined with triangular transmission and a detachable shell, the problem of the lack of multi-angle stretching of the feet in existing massage chairs is solved, improving massage comfort and structural stability.

CN224484432UActive Publication Date: 2026-07-14NINGBO OSUN HEALTH CARE TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO OSUN HEALTH CARE TECH
Filing Date
2025-07-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing massage chairs lack multi-angle stretching functions for the feet, making it difficult to meet users' needs for full stretching and relaxation of foot muscles, and the existing structure is not compact and flexible enough.

Method used

Design a foot stretching structure including a fixed frame, a telescopic frame, and a foot massager. The angle of the foot massager is adjusted through a linkage mechanism of a drive component and a telescopic rod, forming a triangular transmission structure. Combined with a detachable shell design, stability and flexibility are ensured.

Benefits of technology

It enables multi-angle stretching of the feet, improving the physiological adaptability and comfort of massage. Its compact structure facilitates integration, enhances control flexibility and operational stability, and reduces jamming and vibration issues.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to massage chair technical field provides a foot stretching structure and massage chair for massage chair, and foot stretching structure includes: fixed frame, telescopic frame is movably arranged on fixed frame, sole massage part, rotation setting in telescopic frame, sole massage part is provided with first end and second end respectively along the end of sole front and back direction, drive piece, its one end rotationally connected in telescopic frame and is close to first end, telescopic link, its one end is connected in drive piece's other end, and the other end of telescopic link rotationally connected in second end. Compared with prior art, the utility model through setting up fixed frame, telescopic frame, and sole massage part, and cooperate by drive piece and telescopic link linkage mechanism that is composed, realized the initiative adjustment of sole massage part angle, this structure can drive sole massage part to rotate to different direction under the state of extension and contraction state respectively, thereby simulates the natural stretching and bending action of foot, enhances the physiological adaptability and comfort degree of massage.
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Description

Technical Field

[0001] This utility model belongs to the field of massage chair technology, specifically relating to a foot stretching structure for a massage chair and a massage chair. Background Technology

[0002] With the fast pace of modern life, people's demand for health and wellness is increasing, and massage equipment has gradually become a common auxiliary device in homes and offices. Among them, massage chairs are widely popular because they can provide a full-body relaxation effect. The foot massage area is an important component of a massage chair, directly affecting the user's comfort and experience.

[0003] Existing massage chairs typically come equipped with foot massage devices, but most only offer localized massage and lack support for foot stretching movements. This design fails to meet users' needs for full stretching and relaxation of foot muscles. Furthermore, current technology lacks a compact, flexible mechanical structure capable of multi-angle foot stretching.

[0004] Therefore, it is necessary to design a novel foot stretching structure that can effectively stretch the ankle area without increasing the overall volume, while possessing good stability and adjustability. This structure should be easily integrated into a massage chair and allow for control of the angle changes of the foot massage area via a drive mechanism, thereby improving the massage effect and user experience. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a foot stretching structure for a massage chair and a massage chair, in view of the current state of the prior art.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a foot extension structure for a massage chair is proposed, including: a fixing frame for connecting with the massage chair;

[0007] A telescopic frame, which is movably mounted on the fixed frame;

[0008] The foot massage part is rotatably mounted on the telescopic frame, and the foot massage part is provided with a first end and a second end at its ends along the front-back direction of the foot.

[0009] A drive component, one end of which is rotatably connected to the telescopic frame and close to the first end;

[0010] A telescopic rod, one end of which is connected to the other end of the driving member, the driving member being used to drive the telescopic rod to extend or retract relative to the driving member, and the other end of the telescopic rod being rotatably connected to the second end;

[0011] The telescopic rod has an extended state and a retracted state, and in both the extended and retracted states, the telescopic rod can drive the foot massage part to rotate; wherein...

[0012] When in the extended state, the angle between the foot massage part and the fixing frame decreases;

[0013] When in the contracted state, the angle between the foot massage part and the fixing frame increases.

[0014] In the foot extension structure for a massage chair described above, the line connecting the rotation center point of the drive member relative to the telescopic frame, the rotation center point of the telescopic rod relative to the second end, and the rotation center point of the foot massage part relative to the telescopic frame forms a triangular structure.

[0015] In the aforementioned foot extension structure for a massage chair, the foot massage section includes two rotating plates, and the telescopic frame includes:

[0016] First skeleton;

[0017] A first rotating seat is disposed on the first frame, and one end of the driving member is rotatably connected to the first rotating seat via a first rotating shaft;

[0018] Two fixed plates are disposed on opposite sides of the first frame. The fixed plates correspond one-to-one with the rotating plates, and the rotating plates are rotatably connected to the fixed plates through a second rotating shaft.

[0019] In the aforementioned foot extension structure for a massage chair, the foot massage part includes a second frame, on which a second rotating seat is provided, and one end of the telescopic rod is rotatably connected to the second rotating seat via a third rotating shaft.

[0020] In the aforementioned foot extension structure for a massage chair, the foot massage unit includes a detachably connected upper shell and a lower shell, a second frame is connected between the upper shell and the lower shell, and a clearance portion is provided at one end of the upper shell and the lower shell facing the telescopic frame, the clearance portion being used to provide clearance space for the rotation of the foot massage unit.

[0021] In the foot extension structure for a massage chair described above, an inner shell is fixed to the second frame, and an opening is provided on the upper shell for exposing the inner shell. The inner shell is provided with two first receiving cavities arranged side by side, and the first receiving cavities are used to receive the soles of the feet.

[0022] In the aforementioned foot extension structure for a massage chair, the fixed frame is provided with a calf massage part, and the calf massage part is provided with two second receiving cavities arranged side by side, the second receiving cavities being used to receive the calf.

[0023] In the aforementioned foot extension structure for a massage chair, a guide post is provided on the telescopic frame, and a guide part is provided on the fixed frame. The guide post is slidably inserted into the guide part to guide the movement of the telescopic frame.

[0024] This utility model solves the above-mentioned technical problems and also proposes a massage chair, including the above-mentioned foot extension structure for a massage chair.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) By setting a fixed frame, a telescopic frame movably mounted on the fixed frame, and a foot massager mounted on the telescopic frame, and cooperating with a linkage mechanism composed of a drive component and a telescopic rod, the angle of the foot massager can be actively adjusted. This structure can drive the foot massager to rotate in different directions in the extended and retracted states, thereby simulating the natural extension and flexion movements of the foot and enhancing the physiological adaptability and comfort of the massage. In addition, the structure is compact and easy to integrate into a massage chair, and has good control flexibility and operational stability.

[0027] (2) By forming a triangular structure between the rotation center points of the drive unit, telescopic rod and foot massage part, the transmission relationship between the three is more stable and reliable, which can effectively improve the motion accuracy and mechanical performance of the entire stretching structure. This triangular layout helps to improve drive efficiency and reduce jamming or vibration problems caused by structural offset, thereby improving the stability and comfort of the user.

[0028] (3) The foot massage unit adopts a detachable upper and lower shell structure, and a clearance part is provided at one end of the two facing the telescopic frame, which provides sufficient space for the rotation of the foot massage unit and avoids interference or jamming during the movement. Attached Figure Description

[0029] Figure 1 This is a plan view of a foot extension structure for a massage chair according to the present invention.

[0030] Figure 2 yes Figure 1 The plan view omits the upper and lower shells.

[0031] Figure 3 yes Figure 1 A plan view of the midfoot massage area after it has been rotated downwards.

[0032] Figure 4 yes Figure 3 The plan view omits the upper and lower shells.

[0033] Figure 5 This utility model presents a perspective view of a foot extension structure for a massage chair.

[0034] Figure 6 yes Figure 5 A three-dimensional view of the middle part of the structure.

[0035] In the figure, 100 is the fixed frame; 110 is the guide part; 200 is the telescopic frame; 210 is the first frame; 220 is the first rotating seat; 230 is the fixed piece; 240 is the guide column; 300 is the foot massage part; 310 is the rotating piece; 320 is the second frame; 330 is the second rotating seat; 340 is the upper shell; 350 is the lower shell; 360 is the inner shell; 361 is the first receiving cavity; 400 is the driving component; 410 is the telescopic rod; 500 is the calf massage part; and 600 is the triangular structure. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0038] like Figures 1 to 6 As shown, this solution mainly focuses on the specific structure of the foot stretching structure and its application in massage chairs.

[0039] A foot extension structure for a massage chair includes: a fixed frame 100, a telescopic frame 200, a foot massage part 300, a drive component 400, and a calf massage part 500.

[0040] Specifically, the mounting bracket 100 is used to connect to the massage chair, thereby securing the entire foot stretching structure to the massage chair. The connection between the mounting bracket 100 and the massage chair can be achieved through threaded connection, welding, or other methods. The calf massage unit 500 is fixed to the mounting bracket 100 through threaded connection or welding.

[0041] The calf massage unit 500 has two side-by-side second receiving cavities for accommodating the calves. By mounting the calf massage unit 500 on the fixing frame 100 and configuring the two side-by-side second receiving cavities, the massage function for the calves is realized, enhancing the overall massage effect. This design helps improve blood circulation in the user's legs, relieve fatigue, and make the massage chair more functional.

[0042] In one embodiment, a massager is provided in the second receiving cavity, which can massage the muscles on the back of the calf, thereby relaxing the calf.

[0043] The telescopic frame 200 is movably mounted on the fixed frame 100, and the movement between the telescopic frame 200 and the fixed frame 100 can be achieved by a power device such as a motor, cylinder or electric push rod.

[0044] In one embodiment, the telescopic frame 200 is provided with a guide post 240, and the fixed frame 100 is provided with a guide portion 110. The guide post 240 is slidably inserted into the guide portion 110 to guide the movement of the telescopic frame 200. By providing the guide post 240 on the telescopic frame 200 and the guide portion 110 on the fixed frame 100, and by allowing the guide post 240 to be movably inserted into the guide portion 110, precise guidance is provided for the movement of the telescopic frame 200, preventing it from deviating or tilting during operation.

[0045] This structure improves the smoothness of the entire tensioning mechanism's operation, extends its service life, and enhances the safety and durability of the equipment.

[0046] The foot massage unit 300 is rotatably mounted on the telescopic frame 200. When the foot massage unit 300 rotates relative to the telescopic frame 200, it can push the sole of the foot to rotate relative to the lower leg. For example, when the foot massage unit 300 rotates from... Figure 1 Rotate to the state shown Figure 3 In the indicated state, when the user is sitting on the massage chair, pressing down with their feet can stretch and massage the ankle area; when the foot massage section 300... Figure 3 The state has returned to Figure 1 When in this state, push the soles of your feet upwards to create a pressing and massaging effect on the soles of your feet.

[0047] The foot massage unit 300 has a first end and a second end at its ends along the front-to-back direction of the foot. The drive unit 400 can be a power component such as a motor, cylinder, or electric push rod. One end of the drive unit 400 is mounted on the telescopic frame 200 via a rotatable connection and is close to the first end; one end of the telescopic rod 410 is connected to the other end of the drive unit 400, and the drive unit 400 is used to drive the telescopic rod 410 to extend and retract relative to the drive unit 400; the other end of the telescopic rod 410 is connected to the second end via a rotatable connection.

[0048] In this design, the telescopic rod 410 has an extended state and a retracted state, and can drive the foot massage unit 300 to rotate in both states. Specifically, when the telescopic rod 410 is in the extended state, the angle between the foot massage unit 300 and the fixing frame 100 decreases; when it is in the retracted state, the angle increases.

[0049] This solution utilizes a fixed frame 100, a telescopic frame 200 movably mounted on the fixed frame 100, and a foot massage unit 300 rotatably mounted on the telescopic frame 200. Combined with a linkage mechanism consisting of a drive unit 400 and a telescopic rod 410, it achieves active adjustment of the angle of the foot massage unit 300. This structure can drive the foot massage unit 300 to rotate in different directions in both the extended and retracted states, thereby simulating the natural extension and flexion movements of the foot and enhancing the physiological adaptability and comfort of the massage. Furthermore, the structure is compact, facilitating integration into a massage chair, and offers good control flexibility and operational stability.

[0050] It is worth mentioning that the lines connecting the rotation center point of the drive unit 400 relative to the telescopic frame 200, the rotation center point of the telescopic rod 410 relative to the second end, and the rotation center point of the foot massage part 300 relative to the telescopic frame 200 form a triangular structure 600.

[0051] By forming a triangular structure 600 between the rotation center points of the drive unit 400, the telescopic rod 410, and the foot massage part 300, the transmission relationship between the three is made more stable and reliable, effectively improving the motion accuracy and mechanical performance of the entire tension structure. This triangular layout helps improve drive efficiency and reduce jamming or vibration problems caused by structural misalignment, thereby improving the smoothness and comfort of the user.

[0052] Furthermore, referring to Figure 2 When the sole of the foot is placed on the foot massage part 300, the force exerted by the sole of the foot on the foot massage part 300 is mainly biased towards Figure 2 On the left side of the midfoot massage section 300, i.e., the triangular structure 600 is... Figure 2 The leftmost vertex. Since one end of the telescopic rod 410 is rotatably connected to the second end of the foot massage part 300 along the front of the foot, combined with this triangular structure 600, the force on the foot massage part 300 can be distributed to the other two vertices of the triangular structure 600, thereby avoiding the force on the foot massage part 300 being concentrated at its rotation center point relative to the telescopic frame 200, thus improving the durability and service life of the entire foot stretching structure.

[0053] Furthermore, the foot massage unit 300 includes two rotating plates 310, and the telescopic frame 200 includes: a first frame 210; a first rotating seat 220, which is disposed on the first frame 210, and one end of the drive member 400 is rotatably connected to the first rotating seat 220 through a first rotating shaft; and two fixed plates 230, which are disposed on opposite sides of the first frame 210, with the fixed plates 230 corresponding one-to-one with the rotating plates 310, and the rotating plates 310 being rotatably connected to the fixed plates 230 through a second rotating shaft.

[0054] The first frame 210 forms the main structure of the entire telescopic frame 200. The first rotating seat 220 serves as the rotation support point for the drive component 400. It can be integrally formed with the first frame 210 or fixed by means of threaded connection, welding, etc. The fixing plate 230 can also be integrally formed with the first frame 210 or fixed by means of threaded connection, welding, etc. In this design, by setting two rotating plates 310 in the foot massage part 300, and cooperating with the first frame 210, the first rotating seat 220, and the fixing plates 230 on both sides, the foot massage part 300 has the ability to provide multi-point support and flexible rotation.

[0055] This design not only enhances the stability of the structure, but also improves the load-bearing capacity of the foot massage unit 300 at different angles, avoiding the shaking or imbalance that may be caused by using a single pivot, thereby further optimizing the user experience.

[0056] Preferably, the foot massage part 300 includes a second frame 320, on which a second rotating seat 330 is provided, and one end of the telescopic rod 410 is rotatably connected to the second rotating seat 330 through a third rotating shaft.

[0057] The second frame 320 forms the main structure of the foot massage unit 300. A second rotating seat 330 is mounted on the second frame 320 of the foot massage unit 300 and connected to the telescopic rod 410 via a third rotating shaft. This allows the movement of the telescopic rod 410 to be efficiently transmitted to the foot massage unit 300, ensuring smooth and responsive rotation. This structure is rationally designed, facilitating assembly and maintenance, while also improving the connection strength and reliability between components.

[0058] It is worth mentioning that the foot massage unit 300 includes a detachably connected upper housing 340 and lower housing 350, and a second frame 320 is connected between the upper housing 340 and the lower housing 350. The upper housing 340 and the lower housing 350 are provided with a clearance part at one end facing the telescopic frame 200. The clearance part is used to provide clearance space for the rotation of the foot massage unit 300.

[0059] The foot massage unit 300 adopts a detachable upper housing 340 and lower housing 350 structure, with a clearance part provided at the end of both facing the telescopic frame 200, providing ample space for the rotation of the foot massage unit 300 and avoiding interference or jamming during movement. This ingenious structural design ensures both an aesthetically pleasing appearance and improved maintainability of internal components, facilitating cleaning and replacement.

[0060] Furthermore, an inner shell 360 is fixed on the second frame 320, and an opening is provided on the upper shell 340 for exposing the inner shell 360. The inner shell 360 is provided with two first receiving cavities 361 arranged side by side, and the first receiving cavities 361 are used to receive the foot.

[0061] In one embodiment, a massager for massaging the soles of the feet is disposed within the first receiving cavity 361. By providing an inner shell 360 on the second frame 320 and opening an opening in the upper shell 340 to expose a portion of the inner shell 360, the functional visibility and ventilation and heat dissipation performance of the foot massage unit 300 are enhanced.

[0062] The specific usage process of the foot stretching structure in this solution is as follows:

[0063] Preliminary steps for ankle massage: Place the lower legs into the second receiving cavity of the lower leg massage unit 500, and place the soles of the feet into the corresponding first receiving cavity 361. The telescopic frame 200 moves up and down relative to the fixed frame 100, and the foot massage unit 300 is moved down and positioned at a suitable distance to accommodate the user's leg length. Preferably, the first receiving cavity 361 and the second receiving cavity are respectively provided with inflatable airbags that are positioned in the same way as the massage chair, so that the soles of the feet can be gently pressed into the first receiving cavity 361 and the lower legs can be gently pressed into the second receiving cavity.

[0064] Stretching and massage: Refer to Figure 2 At this time, the telescopic rod 410 is in the extended state relative to the driving member 400. When the driving member 400 drives the telescopic rod 410 to retract relative to the driving member 400, that is, when the telescopic rod 410 is in the retracted state, the telescopic rod 410 drives the foot massage part 300 to rotate. Figure 2 Rotate counterclockwise to Figure 4 In the state shown, the angle between the foot massage part 300 and the fixing frame 100 increases, and the back of the foot is pressed down, forming a stretching massage on the ankle.

[0065] Pressing and folding massage: Refer to Figure 4 At this time, the telescopic rod 410 is in a retracted state relative to the driving member 400. When the driving member 400 drives the telescopic rod 410 to extend relative to the driving member 400, that is, when the telescopic rod 410 is in the extended state, the telescopic rod 410 drives the foot massage part 300 to rotate. Figure 4 Rotate clockwise to Figure 2 In the state shown, the angle between the foot massage part 300 and the fixing frame 100 becomes smaller, the foot is lifted upward, and a pressure massage is formed on the ankle.

[0066] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0068] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A foot extension structure for a massage chair, characterized in that, include: Mounting bracket for connecting to the massage chair; A telescopic frame, which is movably mounted on the fixed frame; The foot massage part is rotatably mounted on the telescopic frame, and the foot massage part is provided with a first end and a second end at its ends along the front-back direction of the foot. A drive component, one end of which is rotatably connected to the telescopic frame and close to the first end; A telescopic rod, one end of which is connected to the other end of the driving member, the driving member being used to drive the telescopic rod to extend or retract relative to the driving member, and the other end of the telescopic rod being rotatably connected to the second end; The telescopic rod has an extended state and a retracted state, and in both the extended and retracted states, the telescopic rod can drive the foot massage part to rotate; wherein... When in the extended state, the angle between the foot massage part and the fixing frame decreases; When in the contracted state, the angle between the foot massage part and the fixing frame increases.

2. The foot extension structure for a massage chair as described in claim 1, characterized in that, The line connecting the rotation center point of the drive member relative to the telescopic frame, the rotation center point of the telescopic rod relative to the second end, and the rotation center point of the foot massage part relative to the telescopic frame forms a triangular structure.

3. The foot extension structure for a massage chair as described in claim 1, characterized in that, The foot massage unit includes two rotating plates, and the telescopic frame includes: First skeleton; A first rotating seat is disposed on the first frame, and one end of the driving member is rotatably connected to the first rotating seat via a first rotating shaft; Two fixed plates are disposed on opposite sides of the first frame. The fixed plates correspond one-to-one with the rotating plates, and the rotating plates are rotatably connected to the fixed plates through a second rotating shaft.

4. The foot extension structure for a massage chair as described in claim 1, characterized in that, The foot massage part includes a second frame, on which a second rotating seat is provided, and one end of the telescopic rod is rotatably connected to the second rotating seat through a third rotating shaft.

5. The foot extension structure for a massage chair as described in claim 4, characterized in that, The foot massage unit includes a detachably connected upper shell and a lower shell, with a second frame connected between the upper shell and the lower shell. The upper shell and the lower shell are provided with a clearance portion at one end facing the telescopic frame, which is used to provide clearance space for the rotation of the foot massage unit.

6. The foot extension structure for a massage chair as described in claim 5, characterized in that, The second frame is fixed with an inner shell, and the upper shell is provided with an opening for exposing the inner shell. The inner shell is provided with two first receiving cavities arranged side by side, and the first receiving cavities are used to receive the foot.

7. The foot extension structure for a massage chair as described in claim 1, characterized in that, The fixed frame is provided with a calf massage part, which has two second receiving cavities arranged side by side, and the second receiving cavities are used to receive the calves.

8. The foot extension structure for a massage chair as described in claim 1, characterized in that, The telescopic frame is provided with guide posts, and the fixed frame is provided with guide parts. The guide posts are slidably inserted into the guide parts to guide the movement of the telescopic frame.

9. A massage chair, characterized in that, Includes a foot extension structure for a massage chair as described in any one of claims 1 to 8.