Massage structure with stowable legs and massage chair

Abstract

The application provides a massage structure and a massage chair, and relates to the technical field of massage chairs. The massage structure comprises a backrest frame, a bottom seat frame and a leg assembly. The leg assembly is provided with kneading devices. The backrest frame and the leg assembly are respectively hinged to opposite sides of the bottom seat frame. Two ends of an electric push rod of the backrest are respectively hinged to the backrest frame and the bottom seat frame. A leg driving member is hinged to the bottom seat frame. Two ends of a leg linkage rod are respectively hinged to the leg assembly and the leg driving member. Two ends of an electric push rod of a leg support are respectively hinged to the leg driving member and the bottom seat frame. The leg driving member drives the leg linkage rod to move forward and backward so that the leg assembly is extended out of or retracted into the accommodating cavity. The leg lifting device is adapted to control the kneading devices to lift or descend after the leg assembly is completely extended out of the accommodating cavity. The massage chair has improved functionality.

Description

Technical Field

[0001] This invention relates to the field of massage chair technology, and more specifically, to a massage structure with retractable legs and a massage chair. Background Technology

[0002] There are many types of massage chairs available on the market, such as a massage chair and its leg massager concealment structure, patent number CN202310867773, which discloses a massage chair and its leg massager concealment structure, including a seat frame, a leg massager and a drive component. Although it achieves the function of storing the massage chair to a certain extent, its structure is complex, its cost is high, and it cannot control the raising and lowering of the legs. In addition, it uses two first slides to guide the leg massager, which can easily generate a lot of friction noise during the storage or unfolding of the leg massager. Summary of the Invention

[0003] This invention discloses a leg-retractable massage structure, which aims to improve the problems of existing massagers with retractable leg components, such as complex structure leading to high cost, and the inability to simultaneously drive the leg components to rise and fall.

[0004] The present invention adopts the following solution:

[0005] This application provides a leg-retractable massage structure, including a backrest frame, a base frame, and a leg assembly. The base frame has a cavity suitable for accommodating the leg assembly. The leg assembly is equipped with a kneading device. The backrest frame and the leg assembly are respectively hinged to opposite sides of the base frame. The structure also includes: a leg drive component, a leg linkage rod, a backrest electric push rod, a leg support electric push rod, and a leg lifting device. The two ends of the backrest electric push rod are respectively hinged to the backrest frame and the base frame to control the backrest frame to rotate around the base frame. The leg drive is hinged to the bottom seat, and the two ends of the leg linkage rod are respectively hinged to the leg assembly and the leg drive. The two ends of the leg support electric push rod are respectively hinged to the leg drive and the bottom seat, so as to drive the leg linkage rod to move back and forth through the leg drive to make the leg assembly extend or retract into the receiving cavity. The leg assembly is provided with a leg lifting device, which is adapted to control the kneading device to lift or lower after the leg assembly is fully extended from the receiving cavity.

[0006] Furthermore, the leg assembly includes a kneading device and a support assembly for supporting the kneading device, the kneading device being hinged to the support assembly, and the leg lifting device being disposed between the kneading device and the support assembly to drive the kneading device to rotate around the support assembly to achieve lifting or lowering.

[0007] Furthermore, the leg lifting device includes an air pump and an air bladder, wherein the air pump is disposed on the bottom seat frame, the air bladder is disposed between the kneading device and the support assembly, and the air pump and the air bladder are connected by an air tube, and the air bladder is adapted to drive the kneading device to lift when inflated.

[0008] Furthermore, the support assembly is provided with a storage shaft, a rotating shaft, and a limiting tube. The storage shaft is adapted to be hinged to the leg linkage rod, the rotating shaft is adapted to be hinged to the bottom seat frame, and the two sides of the kneading device are formed with rotating tubes adapted to be hinged to the support assembly. A bushing is provided on the rotating tube, and a torsion spring is provided on the bushing. One end of the torsion spring is fixed to the limiting tube, and the other end is fixed to the kneading device, so as to provide at least part of the descent force through the torsion spring after the airbag is deflated.

[0009] Furthermore, the leg linkage is hinged to the middle of the support assembly.

[0010] Furthermore, the backrest electric push rod and the leg support electric push rod are adapted to be controlled independently or in conjunction to control the leg assembly or the backrest frame to rotate individually or simultaneously.

[0011] Furthermore, the leg linkage includes side bars located on both sides and a crossbar connecting the side bars. The crossbar is located in the middle section of the side bars to keep the leg assembly stable during extension or retraction.

[0012] Furthermore, the leg drive component is provided with a fixing hole one for hinged to a fixing shaft one of the bottom seat frame, and a fixing hole two for hinged to one end of the leg linkage rod.

[0013] The present invention also provides a massage chair, including the aforementioned leg-retractable massage structure, which has the following beneficial effects:

[0014] This invention optimizes the design of the drive and connection structures, specifically incorporating a leg drive component and a leg linkage rod that work together to control the extension and retraction of the leg assembly, achieving a storage function. Simultaneously, a leg lifting device is integrated within the leg assembly to drive the kneading device, enabling the leg assembly to be both stored and raised, providing more massage postures. Furthermore, the inclusion of an airbag as a lifting device reduces the power space required for raising the leg assembly, allowing for lifting with a smaller installation space and a simpler lifting mechanism. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of a leg-retractable massage structure according to an embodiment of the present invention;

[0016] Figure 2 This is another exploded structural diagram of a leg-retractable massage structure according to an embodiment of the present invention;

[0017] Figure 3 This is a side view of the initial state of a leg-retractable massage structure according to an embodiment of the present invention;

[0018] Figure 4 This is a side view of a massage structure with retractable legs according to an embodiment of the present invention, showing the backrest not reclining and the legs extended.

[0019] Figure 5 This is an axial side view of a massage structure with retractable legs according to an embodiment of the present invention, showing the backrest not reclining and the legs extended.

[0020] Figure 6 This is an axial side view of a massage structure with retractable legs according to an embodiment of the present invention, showing the backrest reclining and the legs tucked up.

[0021] Figure 7 This is a side view of a massage structure with retractable legs according to an embodiment of the present invention, showing the backrest not reclining, the legs extended, and the legs raised.

[0022] Figure 8 This is an axial side view of a massage structure with retractable legs according to an embodiment of the present invention, showing the backrest not reclining, the legs extended, and the legs raised.

[0023] Figure 9 This is a schematic diagram of the lifting process of the kneading device during the inflation of the airbag of a leg-retractable massage structure according to an embodiment of the present invention.

[0024] Icons: 1. Backrest frame; 2. Seat frame; 3. Leg drive unit; 4. Leg linkage rod; 5. Leg assembly; 6. Electric backrest push rod; 7. Electric leg support push rod; 8. Air pump; 11. Backrest pivot; 12. Push rod fixing seat one; 21. Push rod fixing seat two; 22. Push rod fixing seat three; 23. Fixing shaft one; 24. Leg storage rotating bushing; 25. Air pump fixing plate; 26. Rotating bushing; 31. Push rod fixing. 4. Seat 4; 32. Drive plate; 321. Fixing hole 1; 322. Fixing hole 2; 51. Kneading device; 511. Rotating tube; 52. Support assembly; 521. Storage shaft; 522. Rotating shaft; 523. Limiting tube; 53. Right torsion spring; 54. Left torsion spring; 55. Bushing; 56. Airbag; A. Leg assembly rotating shaft; B. Drive component rotating shaft; C. Kneading device rotating shaft; D. Backrest frame rotating shaft; E. Air tube. Detailed Implementation

[0025] Combination Figures 1 to 9As shown, this embodiment provides a massage chair, including a leg-retractable massage structure. The leg-retractable massage structure includes a backrest frame 1, a bottom seat frame 2, and a leg assembly 5. The bottom seat frame 2 has a cavity suitable for accommodating the leg assembly 5. The leg assembly 5 is equipped with a kneading device 51. The backrest frame 1 and the leg assembly 5 are respectively hinged to opposite sides of the bottom seat frame 2. The chair also includes: a leg drive component 3, a leg linkage rod 4, a backrest electric push rod 6, a leg support electric push rod 7, and a leg lifting device. The two ends of the backrest electric push rod 6 are respectively hinged to the backrest frame 1 and the bottom seat frame 2 to control... The backrest frame 1 rotates around the bottom seat frame 2; the leg drive 3 is hinged to the bottom seat frame 2, and the two ends of the leg linkage rod 4 are respectively hinged to the leg assembly 5 and the leg drive 3; the two ends of the leg support electric push rod 7 are respectively hinged to the leg drive 3 and the bottom seat frame 2, so as to drive the leg linkage rod 4 to move back and forth through the leg drive 3 to make the leg assembly 5 extend or retract into the receiving cavity; the leg assembly 5 is provided with a leg lifting device, which is adapted to control the kneading device 51 to lift or lower after the leg assembly 5 is fully extended out of the receiving cavity.

[0026] Continue to combine Figures 1 to 9 As shown, in this embodiment, the leg assembly 5 includes a kneading device 51 and a support assembly 52 for supporting the kneading device 51. The kneading device 51 is hinged to the support assembly 52, and the leg lifting device is disposed between the kneading device 51 and the support assembly 52 to drive the kneading device 51 to rotate around the support assembly 52 to achieve lifting or lowering. In one embodiment, the leg lifting device includes an air pump 8 and an airbag 56, wherein the air pump 8 is disposed on the bottom seat 2, the airbag 56 is disposed between the kneading device 51 and the support assembly 52, and the air pump 8 and the airbag 56 are connected through an air tube E. The airbag 56 is adapted to drive the kneading device 51 to lift when inflated.

[0027] Combination Figures 1 to 2As shown, the backrest frame 1 is provided with a backrest pivot 11 and a push rod fixing seat 12 for providing backrest support. The bottom seat frame 2 has a cavity suitable for accommodating the leg assembly 5. The bottom seat frame 2 also includes a push rod fixing seat 21, a push rod fixing seat 3, a fixing shaft 23, a leg-retracting rotating bushing 24, an air pump fixing plate 25, and a rotating bushing 26. The leg-retracting rotating bushing 24 is used to connect with the rotating shaft 522. The backrest pivot 11 and the rotating bushing 26 are hinged to form the backrest frame rotating shaft D. One end of the backrest electric push rod 6 is hinged to the push rod fixing seat 12 of the backrest frame 1, and the other end is hinged to the push rod fixing seat 21 of the bottom seat frame 2. When the electric push rod 6 extends, it drives the backrest frame 1 to rotate clockwise around the backrest frame rotation axis D through the push rod fixing seat 21, thereby reclining the backrest frame 1; similarly, when the electric push rod 6 retracts, it drives the backrest frame 1 to rotate counterclockwise around the backrest frame rotation axis D, thereby raising the backrest frame 1.

[0028] The leg drive component 3 is provided with a push rod fixing seat 4 31 and a drive plate 32. The leg drive component 3 includes two drive plates 32 disposed on both sides and an intermediate rod connecting the drive plates 32. The push rod fixing seat 4 31 is disposed on the intermediate rod. The drive plate 32 is provided with a fixing hole 1 321 for hinged connection with a fixing shaft 1 23 and a fixing hole 2 322 for hinged connection with the leg linkage rod 4.

[0029] The leg linkage 4 includes side bars on both sides and a crossbar connecting the side bars. The crossbar is located in the middle section of the side bars to keep the leg assembly 5 stable during extension or retraction.

[0030] Combination Figures 1 to 2 As shown, the leg assembly 5 includes a kneading device 51, a support assembly 52, a right torsion spring 53, a left torsion spring 54, a bushing 55, and a leg lifting device. Specifically, the kneading device 51 is an existing mechanism for placing a user's leg, which has a kneading and massage function. The kneading device 51 is hinged to the support assembly 52, and a kneading device rotation shaft C is provided between the two, thereby enabling the kneading device 51 to be raised or lowered on the support assembly 52.

[0031] The support assembly 52 is provided with a storage shaft 521, a rotating shaft 522, and a limiting tube 523. The storage shaft 521 is adapted to be hinged to the leg linkage rod 4, and the rotating shaft 522 is adapted to be hinged to the bottom seat frame 2. The kneading device 51 has rotating tubes 511 on both sides, adapted to be hinged to the support assembly 52. ​​A bushing 55 is provided on the rotating tube 511, and a torsion spring is provided on the bushing 55. One end of the torsion spring is fixed to the limiting tube 523, and the other end is fixed to the kneading device 51, so that after the airbag 56 is deflated, the torsion spring provides at least part of the downward force. Specifically, the rotating shaft 522 on the support assembly 52 is hinged to the fixed shaft 23 on the bottom seat 2 to form the rotating shaft A of the leg assembly. The storage shaft 521 is hinged to one end of the leg linkage rod 4. Here, the storage shaft 521 is located at the middle of the side of the support assembly 52, so that the leg linkage rod 4 is hinged to the middle of the support assembly 52. ​​The fixing hole 321 on the leg drive 3 is hinged to the fixed shaft 23 to form the rotating shaft B of the drive. The fixing hole 322 is hinged to one end of the leg linkage rod 4, that is, the leg linkage rod 4 and the bottom seat 2 are connected through the leg drive 3. One end of the leg support electric push rod 7 is hinged to the push rod fixing seat 22 on the bottom seat 2, and the other end is hinged to the push rod fixing seat 31 on the leg drive 3. When the electric push rod 7 extends, it drives the leg drive component 3 to rotate counterclockwise around the drive component rotation axis B. As the leg drive component 3 rotates counterclockwise, it drives the leg linkage rod 4 to move forward, thereby causing the leg assembly 5 to rotate and extend around the leg assembly rotation axis A under the drive of the leg linkage rod 4. Similarly, when the electric push rod 7 descends, it drives the leg drive component 3 to rotate clockwise around the drive component rotation axis B, and the leg linkage rod 4 moves forward under the drive of the leg drive component 3, thereby causing the leg assembly 3 to rotate and retract around the leg assembly rotation axis A. Through the cooperation of the leg drive component 3 and the leg linkage rod 4, the retraction and extension of the leg assembly 5 can be achieved. Figures 3 to 8 As shown, the electric push rod 6 for the backrest and the electric push rod 7 for the leg support can be controlled independently or in conjunction, thereby enabling synchronous or asynchronous movement between the leg assembly 5 and the backrest frame 1. This allows for adjustment of the rotation of the leg assembly 5, the backrest frame 1, and the kneading device 51 as needed.

[0032] In this embodiment, the air pump 8 is fixed to the air pump fixing plate 25 on the bottom seat 2, and the air pump 8 is connected to the airbag 56 through the air pipe E. Thus, the air pump 8 can control the inflation of the airbag, thereby raising the leg assembly. Specifically, the kneading device 51 is provided with a rotating tube 511; the rotating tube 511 is hinged to the support assembly 52 under the action of the bushing 55; the left torsion spring 54 and the right torsion spring 53 are respectively sleeved on the bushings on both sides, one end of the left torsion spring 54 and the right torsion spring 53 is fixed to the limiting tube 523 on the support assembly 52, and the other end is fixed to the kneading device 51; the airbag 56 is fixed on the side of the support assembly 52 facing the kneading device 51, so that the kneading device 51 presses against the airbag 56. During operation, when the leg component 5 is extended under the drive of the electric push rod 7, the air pump 8 operates, causing the airbag 56 to inflate. This allows the kneading device 51 to overcome the pressure of the left torsion spring 54 and the right torsion spring 53, as well as its own weight, to rotate and rise around the kneading device rotation axis C. Similarly, when the airbag 56 deflates, it begins to descend, and the kneading device 51, under the action of gravity and the elastic restoring force of the left torsion spring 54 and the right torsion spring 53, rotates and descends around the kneading device rotation axis C. Throughout the entire lifting and lowering process, the kneading device 51 rises and falls more smoothly. Here, because the airbag 56 is used as the lifting device, and the airbag 56 is flat in the uninflated state, the gap between the kneading device 51 and the support component 52 is small or even non-existent, reducing the space required for storage.

[0033] It is important to note that the airbag 56 must not be inflated when the leg component 5 is not fully extended under the action of the leg support electric push rod 7, otherwise the leg component 5 will collide with the bottom seat frame 2. In one embodiment, to solve this problem, a photoelectric sensor can be installed on the bottom seat frame 2. The leg lifting device can only perform the lifting operation when the photoelectric sensor detects that the leg component 5 is fully extended from the receiving cavity. Of course, it can also be controlled by a control program. The control circuit of the leg lifting device can only be activated after the leg support electric push rod 7 has extended a certain length, thereby avoiding the collision between the leg component 5 and the bottom seat frame 2.

[0034] Through this embodiment, the massage chair can achieve the functions of backrest height adjustment and leg assembly 5 storage, and the leg assembly 5 can also be raised under the action of airbag 56, thus improving the functionality of the massage chair.

[0035] It should be understood that the above are merely preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

[0036] The accompanying drawings used in the above description of the embodiments only illustrate certain embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

Claims

1. A massage structure with stowable legs, comprising a backrest frame, a bottom seat frame, a leg assembly, a receiving cavity adapted to accommodate the leg assembly is formed in the bottom seat frame, the leg assembly is provided with kneading devices, the backrest frame and the leg assembly are respectively hinged on opposite sides of the bottom seat frame, characterized in that, Also included are: leg driving member, leg linkage rod, backrest electric push rod, leg support electric push rod, leg lifting device; wherein both ends of the backrest electric push rod are hingedly connected to the backrest frame and the bottom seat frame to control the rotation of the backrest frame around the bottom seat frame; the leg driving member is hingedly connected to the bottom seat frame, and both ends of the leg linkage rod are hingedly connected to the leg assembly and the leg driving member, and both ends of the leg support electric push rod are hingedly connected to the leg driving member and the bottom seat frame to drive the leg linkage rod to move forward and backward by the leg driving member to extend or retract the leg assembly into the accommodation cavity; the leg assembly is provided with a leg lifting device adapted to control the lifting or lowering of the kneading device after the leg assembly is fully extended out of the accommodation cavity; the leg assembly comprises a kneading device and a support assembly for supporting the kneading device, the kneading device is hingedly connected to the support assembly, and the leg lifting device is arranged between the kneading device and the support assembly to drive the kneading device to rotate around the support assembly to achieve lifting or lowering; the leg lifting device comprises an air pump and an air bag, wherein the air pump is arranged on the bottom seat frame, the air bag is arranged between the kneading device and the support assembly, and the air pump and the air bag are in communication through an air pipe, the air bag is adapted to drive the kneading device to lift when inflated; the support assembly is provided with a receiving shaft, a rotating shaft and a limiting tube, wherein the receiving shaft is adapted to be hingedly connected to the leg linkage rod, the rotating shaft is adapted to be hingedly connected to the bottom seat frame, both sides of the kneading device are formed with rotating tubes adapted to be hingedly connected to the support assembly, the rotating tubes are provided with shaft sleeves, and the shaft sleeves are provided with torsional springs, one end of the torsional spring is fixed to the limiting tube, and the other end is fixed to the kneading device to provide at least part of the downward force after the air bag is deflated.

2. The leg-retractable massage structure according to claim 1, wherein The leg linkage rod is hingedly connected to the middle part of the support assembly.

3. The leg-retractable massage structure according to claim 1, wherein, The backrest electric push rod and the leg support electric push rod are adapted to be independently or jointly controlled to control the separate rotation or simultaneous rotation of the leg assembly or the backrest frame.

4. The leg-retractable massage structure according to claim 1, wherein The leg linkage rod comprises side rods on both sides and a cross rod connected between the side rods, and the cross rod is arranged at the middle segment of the side rods to keep the leg assembly stable during extension or retraction.

5. The leg-retractable massage structure according to claim 1, wherein The leg driving member is provided with a first fixing hole for being hingedly connected to a first fixing shaft of the bottom seat frame, and a second fixing hole for being hingedly connected to one end of the leg linkage rod.

6. A massage chair characterized by comprising: The massage structure comprising the leg assembly according to any one of claims 1-5.

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