Leg and back linkage structure of massage chair and massage chair

Abstract

The utility model discloses a massage armchair and a leg back linkage structure thereof, and belongs to the technical field of massage armchairs, the leg back linkage structure of the massage armchair comprises an underframe assembly, the underframe assembly is connected with a backrest assembly, a leg and foot assembly, a connecting rod mechanism and a driving mechanism, the backrest assembly and the leg and foot assembly are both connected with the connecting rod mechanism, and the driving mechanism is connected with the connecting rod mechanism. The connecting rod mechanism is connected with the driving mechanism, the driving mechanism drives the connecting rod mechanism to move, and the connecting rod mechanism is used for driving the backrest assembly to ascend and the leg and foot assembly to descend at the same time or driving the backrest assembly to descend and the leg and foot assembly to ascend at the same time. The backrest assembly and the leg and foot assembly are driven to be linked through the connecting rod mechanism, so that different poses are achieved, convenience and rapidness are achieved, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of massage chairs, in particular to a leg-back linkage structure of a massage chair and the massage chair. Background Art

[0002] At present, with the improvement of people's living standards, people have higher and higher requirements for the quality of life. Relaxation and health care products such as massage chairs are becoming more and more popular among consumers, and sales are becoming more and more widespread.

[0003] Existing massage chairs generally have the disadvantage of a single style. When in use, the chair back, leg lifting and other movements need to be adjusted separately, which is not convenient and flexible to use. In addition, the massage chair has a complex structure, and its reliability and stability are insufficient, which affects the user experience. Utility Model Content

[0004] The utility model aims at the deficiencies in the prior art and provides a leg-back linkage structure of a massage chair and a massage chair. The backrest assembly and the leg-foot assembly can be driven to link with each other through a connecting rod mechanism to achieve different postures. The utility model is convenient and quick with a simple structure.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] The first object of the present invention is to provide a leg-back linkage structure of a massage chair, comprising a base frame assembly, wherein the base frame assembly is connected to a backrest assembly, a leg-foot assembly, a connecting rod mechanism and a driving mechanism, wherein the backrest assembly and the leg-foot assembly are both connected to the connecting rod mechanism, wherein the connecting rod mechanism is connected to the driving mechanism, wherein the driving mechanism drives the connecting rod mechanism to move, and wherein the connecting rod mechanism is used to simultaneously drive the backrest assembly to rise and the leg-foot assembly to fall, or simultaneously drive the backrest assembly to fall and the leg-foot assembly to rise.

[0007] The beneficial effect of adopting the above technical solution is that the driving mechanism acts as a driving force to push the connecting rod mechanism to move, and the connecting rod mechanism drives the backrest assembly and the leg and foot assembly to move together, so that the backrest assembly is raised and the leg and foot assembly is lowered at the same time to achieve a sitting effect, or the backrest assembly is lowered and the leg and foot assembly is raised at the same time to achieve a semi-lying posture effect, thereby achieving different postures, which is convenient and fast, simple in structure, high in reliability, low in cost, small in size, and saves space, and is suitable for home and commercial use.

[0008] Furthermore, the driving mechanism is an electric push rod, a housing of the electric push rod is rotatably connected to the chassis assembly, and a push rod of the electric push rod is rotatably connected to a connecting rod mechanism.

[0009] The beneficial effect of adopting the above technical solution is that the electric push rod acts as a driving force, the push rod of the electric push rod extends or contracts, driving the connecting rod mechanism to move, and the connecting rod mechanism drives the backrest assembly and the leg and foot assembly to move together to achieve the effect of sitting or semi-lying posture, thereby achieving different postures.

[0010] Furthermore, the connecting rod mechanism includes a first connecting rod and a second connecting rod, the two ends of the first connecting rod are rotatably connected to the base frame assembly and the leg and foot assembly respectively, the second connecting rod is rotatably connected to the first connecting rod, and the second connecting rod is rotatably connected to the push rod of the electric push rod; the backrest assembly includes a backrest hanging ear, and the end of the second connecting rod away from the first connecting rod is hinged to the backrest hanging ear through a pin shaft; the base frame assembly includes a fixing part, and a sliding groove is provided on the fixing part, and the end of the sliding groove close to the leg and foot assembly is higher than the end close to the backrest assembly, and the pin shaft is penetrated into the sliding groove, and the pin shaft moves along the sliding groove.

[0011] The beneficial effect of adopting the above technical solution is that the push rod of the electric push rod is extended, driving the second connecting rod to move toward the backrest assembly, and the second connecting rod drives the pin shaft to move in the slide groove on the fixing part, so that the pin shaft moves from the end of the slide groove close to the leg-foot assembly to the end close to the backrest assembly, and the pin shaft drives the backrest ear of the backrest assembly to move downward and move away from the leg-foot assembly at the same time, so that the backrest assembly is raised; at the same time, the end of the second connecting rod close to the leg-foot assembly drives the first connecting rod to rotate downward, and the first connecting rod drives the leg-foot assembly to rotate downward, so that the leg-foot assembly descends, and a sitting effect can be achieved; conversely, the push rod of the electric push rod contracts to achieve a semi-reclining posture effect.

[0012] Furthermore, the slide groove is configured as an arc-shaped structure.

[0013] The beneficial effect of adopting the above technical solution is that the slide groove is an arc-shaped structure, which facilitates the movement of the pin in the slide groove and is conducive to realizing the linkage between the backrest assembly and the leg and foot assembly.

[0014] Furthermore, one end of the second connecting rod close to the first connecting rod is configured as an arc-shaped curved section that bends downward, and the housing of the electric push rod is located above the arc-shaped curved section.

[0015] The beneficial effect of adopting the above technical solution is that the arc-shaped curved section on the second connecting rod reserves movement space for the housing of the electric push rod, so as to prevent the second connecting rod from interfering with the housing of the electric push rod, thereby ensuring normal operation.

[0016] Furthermore, the push rod of the electric push rod is connected to one end of the second connecting rod close to the fixing member.

[0017] The beneficial effect of adopting the above technical solution is that it is convenient for the push rod of the electric push rod to drive the second connecting rod to move, so as to realize the movement of the pin shaft in the sliding groove.

[0018] The second object of the present invention is to provide a massage chair, adopting the leg-back linkage structure of the massage chair as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model in the sitting posture;

[0020] Figure 2 It is a schematic diagram highlighting the sliding groove structure of the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the present utility model in the semi-reclined posture.

[0022] Description of the reference numerals: 1. Chassis assembly; 11. Fixed part; 2. Backrest assembly; 21. Backrest hanging ear; 3. Leg and foot assembly; 4. Linkage mechanism; 41. First connecting rod; 42. Second connecting rod; 5. Electric push rod; 6. Sliding groove; 7. Pin shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following Figures 1-3 describes the principle and features of the present utility model. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0024] An embodiment of the present utility model discloses a leg-back linkage structure of a massage chair.

[0025] Referring Figures 1-3 , a leg-back linkage structure of a massage chair includes a chassis assembly 1, and the chassis assembly 1 is connected with a backrest assembly 2, a leg and foot assembly 3, a linkage mechanism 4 and a driving mechanism. The driving mechanism serves as a driving force to push the linkage mechanism 4 to move. The linkage mechanism 4 drives the backrest assembly 2 and the leg and foot assembly 3 to be linked, and different postures can be achieved, which is convenient, fast and simple in structure.

[0026] Both the backrest assembly 2 and the leg and foot assembly 3 are rotatably connected to the chassis assembly 1, and both the backrest assembly 2 and the leg and foot assembly 3 are connected to the linkage mechanism 4. The backrest assembly 2 is located at one end of the linkage mechanism 4, and the leg and foot assembly 3 is located at the other end of the linkage mechanism 4. The linkage mechanism 4 is connected to the driving mechanism, and the driving mechanism drives the linkage mechanism 4 to move. The linkage mechanism 4 is used to drive the backrest assembly 2 to rise and the leg and foot assembly 3 to descend simultaneously to achieve the sitting posture effect, or drive the backrest assembly 2 to descend and the leg and foot assembly 3 to rise simultaneously to achieve the semi-reclined posture effect, thereby achieving different postures.

[0027] Specifically, the driving mechanism is an electric push rod 5, the housing of the electric push rod 5 is rotatably connected to the base assembly 1, and the push rod of the electric push rod 5 is rotatably connected to the connecting rod mechanism 4. The electric push rod 5 serves as a driving force, and the push rod of the electric push rod 5 is extended or contracted to drive the connecting rod mechanism 4 to move, and the connecting rod mechanism 4 drives the backrest assembly 2 and the leg and foot assembly 3 to work in conjunction to achieve the effect of a sitting posture or a semi-lying posture, thereby achieving different postures.

[0028] The connecting rod mechanism 4 includes a first connecting rod 41 and a second connecting rod 42, the two ends of the first connecting rod 41 are rotatably connected to the base assembly 1 and the leg and foot assembly 3 respectively, one end of the second connecting rod 42 is rotatably connected to the first connecting rod 41, and the other end of the second connecting rod 42 is rotatably connected to the push rod of the electric push rod 5; the backrest assembly 2 includes a backrest hanging ear 21, and the end of the second connecting rod 42 away from the first connecting rod 41 is hinged to the backrest hanging ear 21 through a pin shaft 7; the base assembly 1 includes a fixing member 11, and a slide groove 6 is provided on the fixing member 11, and the end of the slide groove 6 close to the leg and foot assembly 3 is higher than the end close to the backrest assembly 2, and the pin shaft 7 is penetrated in the slide groove 6, and the pin shaft 7 moves along the slide groove 6.

[0029] Specifically, when the push rod of the electric push rod 5 is extended, the push rod of the electric push rod 5 drives the second connecting rod 42 to move toward the backrest assembly 2, and the second connecting rod 42 drives the pin shaft 7 to move in the slide groove 6 on the fixing member 11, so that the pin shaft 7 moves from the end of the slide groove 6 close to the leg-foot assembly 3 to the end close to the backrest assembly 2, and the pin shaft 7 drives the backrest ear 21 of the backrest assembly 2 to move downward and move away from the leg-foot assembly 3 at the same time, so that the backrest assembly 2 rotates counterclockwise and is lifted; at the same time, the end of the second connecting rod 42 close to the leg-foot assembly 3 drives the first connecting rod 41 to rotate downward, and the first connecting rod 41 drives the leg-foot assembly 3 to rotate downward, so that the leg-foot assembly 3 descends, achieving a sitting effect.

[0030] When the push rod of the electric push rod 5 contracts, the push rod of the electric push rod 5 drives the second connecting rod 42 to move toward the leg-foot assembly 3, and the second connecting rod 42 drives the pin shaft 7 to move in the slide groove 6 on the fixing part 11, so that the pin shaft 7 moves along the slide groove 6 from one end of the backrest assembly 2 to one end of the leg-foot assembly 3, and the pin shaft 7 drives the backrest ear 21 of the backrest assembly 2 to move upward, and at the same time moves in the direction close to the leg-foot assembly 3, so that the backrest assembly 2 rotates clockwise and descends; at the same time, the end of the second connecting rod 42 close to the leg-foot assembly 3 drives the lower end of the first connecting rod 41 to rotate upward, and the first connecting rod 41 drives the leg-foot assembly 3 to rotate upward, so that the leg-foot assembly 3 is lifted, achieving the effect of a semi-lying posture.

[0031] The push rod of the electric push rod 5 is connected to one end of the second connecting rod 42 close to the fixing member 11, facilitating the push rod of the electric push rod 5 to drive the second connecting rod 42 to move, so as to realize the movement of the pin shaft 7 in the chute 6. One end of the second connecting rod 42 close to the first connecting rod 41 is provided with an arc-shaped bending section that bends downward, and the housing of the electric push rod 5 is located above the arc-shaped bending section, so that the arc-shaped bending on the second connecting rod 42 reserves a movement space for the housing of the electric push rod 5, preventing the second connecting rod 42 from interfering with the housing of the electric push rod 5. The chute 6 is provided with an arc-shaped structure, facilitating the movement of the pin shaft 7 in the chute 6 and being conducive to realizing the linkage between the backrest assembly 2 and the leg and foot assembly 3.

[0032] The implementation principle of the leg-back linkage structure of a massage chair according to an embodiment of the present invention is as follows: The electric push rod 5 serves as the driving force. When the push rod of the electric push rod 5 extends, it drives the link mechanism 4 to move. The link mechanism 4 drives the backrest assembly 2 and the leg and foot assembly 3 to be linked, and at the same time raises the backrest assembly 2 and lowers the leg and foot assembly 3 to achieve the sitting posture effect; when the push rod of the electric push rod 5 contracts, it drives the link mechanism 4 to move. The link mechanism 4 drives the backrest assembly 2 and the leg and foot assembly 3 to be linked, and at the same time lowers the backrest assembly 2 and raises the leg and foot assembly 3 to achieve the semi-reclined posture effect.

[0033] An embodiment of the present invention also discloses a massage chair, which adopts the leg-back linkage structure of the massage chair as described above.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A leg-back linkage structure of a massage chair, characterized in that: It includes a chassis assembly (1), and the chassis assembly (1) is connected with a backrest assembly (2), a leg and foot assembly (3), a linkage mechanism (4) and a driving mechanism. The backrest assembly (2) and the leg and foot assembly (3) are both connected with the linkage mechanism (4), the linkage mechanism (4) is connected with the driving mechanism, the driving mechanism drives the linkage mechanism (4) to move, and the linkage mechanism (4) is used to drive the backrest assembly (2) to rise and the leg and foot assembly (3) to descend simultaneously, or drive the backrest assembly (2) to descend and the leg and foot assembly (3) to rise simultaneously.

2. The leg and back linkage structure of a massage chair according to claim 1, wherein: The driving mechanism is an electric push rod (5). The housing of the electric push rod (5) is rotatably connected with the chassis assembly (1), and the push rod of the electric push rod (5) is rotatably connected with the linkage mechanism (4).

3. The leg-back linkage structure of a massage chair according to claim 2, wherein: The linkage mechanism (4) includes a first connecting rod (41) and a second connecting rod (42). The two ends of the first connecting rod (41) are respectively rotatably connected with the chassis assembly (1) and the leg and foot assembly (3). The second connecting rod (42) is rotatably connected to the first connecting rod (41), and the second connecting rod (42) is rotatably connected with the push rod of the electric push rod (5). The backrest assembly (2) includes a backrest hanger ear (21). The end of the second connecting rod (42) far from the first connecting rod (41) is hinged with the backrest hanger ear (21) through a pin shaft (7). The chassis assembly (1) includes a fixing member (11), and a chute (6) is formed on the fixing member (11). One end of the chute (6) close to the leg and foot assembly (3) is higher than the end close to the backrest assembly (2). The pin shaft (7) is arranged in the chute (6), and the pin shaft (7) moves along the chute (6).

4. The leg and back linkage structure of a massage chair according to claim 3, characterized in that: The chute (6) is arranged in an arc structure.

5. The leg-back linkage structure of a massage chair according to claim 3, characterized in that: One end of the second connecting rod (42) close to the first connecting rod (41) is arranged as an arc-shaped bending section that bends downward, and the housing of the electric push rod (5) is located above the arc-shaped bending section.

6. The leg and back linkage structure of a massage chair according to claim 3, characterized in that: The push rod of the electric push rod (5) is connected to one end of the second connecting rod (42) close to the fixing member (11).

7. A massage chair, characterized in that: Adopt the leg-back linkage structure of the massage chair according to any one of claims 1-6.

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