CN102415933A - Massage chair capable of simulating zero gravity state - Google Patents

Abstract

A massage chair capable of simulating a zero-gravity state, comprising a base and a backrest, a seat, and legs arranged on the base; it is characterized in that: the backrest and the seat are respectively articulated on the support frame of the base; the driving device The main body is hinged on the bottom frame of the base, and the end of the driver is hinged on the bottom of the seat; one end of the first link of the linkage mechanism is hinged on the bottom frame of the base, and one end of the second link is hinged on the bottom of the seat. The other end of a connecting rod and the other end of the second connecting rod are hinged into a living hinge; one end of the third connecting rod is hinged on the living hinge, and the other end of the third connecting rod is hinged at the bottom of the backrest; One end of the four connecting rods is hinged at the bottom of the backrest, and the other end of the fourth connecting rod is movably connected to the legs. The invention only uses one driving device and cooperates with the connecting rod structure to realize the simultaneous adjustment of the angles of the backrest, seat and legs, the overall structure is simpler, the adjustment process is stable, and the comfort and safety of use are improved.

Description

A massage chair capable of simulating a zero-gravity state

technical field

The invention relates to a massage chair, in particular to a massage chair capable of simulating a zero-gravity state.

Background technique

The "zero gravity" massage chair is designed according to the principle of NASA's space capsule seat. When an astronaut sits on a space capsule seat to rest, his back and thighs usually form an angle of 128° (error ± 7°), the thigh and the calf form 133° (error ±8°), and the knee is slightly higher than the heart. At this time, the gravity is evenly distributed throughout the body, and the human spine is kept in an S-shaped curve. The sitting posture helps to relax the spine, relieve muscle tension, and promote blood circulation in the human body. People apply the principle of space capsule seats to massage chairs through simulation technology, so as to achieve a completely relaxed, natural and comfortable massage posture.

At present, commercially available zero-gravity massage chairs are expensive and have complex structures. For example, the Chinese utility model "A Massage Mechanism for Simulating a "Zero-Gravity" State" with the patent No. 201020505341. A massage mechanism, which includes a lower leg, an upper frame, a back frame and a lower frame; the upper frame and the lower frame are hinged by a pin shaft of the seat frame; an adjustable upper frame is installed between the upper frame and the lower frame Seat frame electric cylinder for tilting angle; calf electric cylinder and back frame electric cylinder for respectively adjusting the tilting angles of shank and back frame are also installed on the upper seat frame. However, the entire massage mechanism of the above-mentioned patent is equipped with 3 independent electric cylinders, which are used to adjust the inclination angles of the upper seat frame, the calf and the back frame respectively. Not only the design structure and control are relatively complicated, but also the manufacturing cost is relatively high, so that Zero-gravity massage chairs are sold at a high price, making it difficult for the general public to enjoy them. Another example is the Chinese invention patent "Chair Massager" with application number 200810136095.4, which provides a device that uses a driving source to recline the backrest and seat while the person being treated maintains a relaxed posture. Chair type massage machine. Although this patent only uses a single driving source to realize the drive, which simplifies the structure and the control device, this patent can only maintain the relaxed posture of the treated person to recline the backrest and seat, but cannot The height adjustment of the legs is realized, so the massage in zero gravity cannot be fully simulated.

Contents of the invention

The technical problem to be solved by the present invention is to provide a massage chair with a simple structure, which can simultaneously adjust the inclination angles of the backrest, seat and legs, and can simulate a zero-gravity state.

The technical solution adopted by the present invention to solve the above technical problems is: a massage chair capable of simulating a zero-gravity state, including

The base has a horizontally arranged underframe and a support frame vertically fixed on the underframe, the base is provided with a backrest, a seat and legs, and the seat and the legs are hingedly connected;

It is characterized in that: it also includes

a link mechanism for adjusting the reclining angles of the backrest, seat and legs; and

a driving device, driving the linkage mechanism to act;

Wherein, the backrest and the seat are respectively articulated on the support frame;

The drive device includes a body and a drive member that can be stretched relative to the body, the body of the drive device is hinged on the underframe of the base, and the end of the drive member of the drive device is hinged at the bottom of the seat ;

The link mechanism includes a first link, a second link, a third link and a fourth link, wherein one end of the first link is hinged on the chassis of the base, and the first link One end of the two connecting rods is hinged at the bottom of the seat, and the other end of the first connecting rod and the other end of the second connecting rod are hinged to form a living hinge; one end of the third connecting rod is hinged On the movable hinge part, the other end of the third link is hinged at the bottom of the backrest; one end of the fourth link is hinged at the bottom of the backrest, and the fourth link is hinged at the bottom of the backrest. The other end is flexibly connected to the leg.

In order to improve the flexibility of the leg adjustment, facilitate the adjustment of the leg tilt angle, and increase the thrust of the leg lifting, preferably, the leg includes a push plate, a first leg and a second leg, One end of the first leg is hinged to the front end of the seat, the other end of the first leg is hinged to one end of the second leg, and the other end of the second leg is hinged to the pusher. One end of the plate is hinged, the other end of the push plate is hinged on the bottom at the front end of the seat, and the other end of the fourth connecting rod is hinged near the other end of the push plate. Therefore, a four-link structure capable of linkage is also formed between the seat, the first leg, the second leg and the push plate, and the thrust of the fourth link to the leg can be amplified by the leverage of the push plate, so that The legs have a greater range of tilting adjustment angles, which also makes lifting the legs easier and less labor-intensive; moreover, the first support foot used for lowering the lower legs of the human body and the second support foot used for lowering the soles of the feet They are connected by movable hinges, so that the massage machine can realize the adjustment of the bending angle between the thigh and the calf of the human body during the tilting process, which improves the comfort of the calf placement and is more ergonomic.

Preferably, the living hinge can be a hinge point, when the other end of the first connecting rod, the other end of the second connecting rod and one end of the third connecting rod are jointly hinged on the hinge point, the first The connecting rod, the second connecting rod and the third connecting rod are located in the same plane.

Considering the limited installation space and the convenience of assembly, as another preference, the living hinge part can also be a hinge shaft, and the first connecting rod, the second connecting rod and the third connecting rod are respectively dislocated and hinged on the hinge shaft superior. At this time, the other end of the first connecting rod, the other end of the second connecting rod and one end of the third connecting rod can be respectively hinged at different positions of the hinge axis, and the three are still connected by a living hinge, but the first connecting rod , The second connecting rod and the third connecting rod are not in the same plane, which is more convenient for assembly and maintenance.

The drive device can adopt various drive structures in the prior art, such as pneumatic drive, hydraulic drive or manual auxiliary drive (such as hand wheel screw), as preferably, the drive device can be simply an electric push rod, the The electric push rod includes a push cylinder hinged with the underframe of the base and a push rod hinged with the bottom of the seat, and the push cylinder is provided with a motor that drives the telescopic movement of the push rod. The bottom frame of the base is also provided with a control device capable of controlling the operation of the motor.

As another preference, the driving device may be a power cylinder, the power cylinder includes a cylinder hinged with the bottom frame of the base and a piston hinged with the bottom of the seat, the base A control device capable of controlling the work of the power cylinder is also provided on the underframe. The power cylinder may be a hydraulic cylinder or a pneumatic cylinder, and correspondingly, the control device may be a hydraulic pump for controlling the action of the hydraulic cylinder or an air pump for controlling the action of the pneumatic cylinder.

Compared with the prior art, the present invention has the following advantages: firstly, only one driving device is used in conjunction with the connecting rod structure to realize the simultaneous adjustment of the angles of the backrest, seat and legs, so that the "zero gravity" state can be realized. Simulation, the overall structure is simpler, the assembly and adjustment are more convenient, and the production cost is effectively reduced; secondly, the support frame is located at the rear end of the seat, the driving device is arranged at the front end of the seat, and the weight of the entire massage chair is evenly distributed among four The connecting rod mechanism, the driving device and the support frame make the weight and center of gravity of the backrest and seat part in the process of hinged rotation better balanced, ensuring the stability of the massage chair in the process of angle adjustment, and also ensuring the stability of the massage chair during use. Comfort and safety.

Description of drawings

Fig. 1 is a right view (initial state) of the structure of a massage chair according to an embodiment of the present invention.

Fig. 2 is a left view (initial state) of the structure of the massage chair according to the embodiment of the present invention.

Fig. 3 is one of the use state diagrams of the structure of the massage chair shown in Fig. 2 (one of the intermediate adjustment states).

Fig. 4 is the use state diagram 2 of the massage chair structure shown in Fig. 2 (intermediate adjustment state 2).

Fig. 5 is the third use state diagram (zero gravity state) of the massage chair structure shown in Fig. 2 .

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 2, the massage chair of this embodiment includes a base, a backrest 1, a seat 2, a leg 3, a driving device and a linkage mechanism, wherein the base plays a role of supporting the entire massage chair, The base includes an underframe 41 and a support frame 42, the underframe 41 is horizontally arranged, the support frame 42 is vertically fixed on the underframe 41 and is positioned on both sides of the backrest 1, and the seat 2 and the legs 3 are moved Hinged to achieve linkage, the seat 2 is hinged on the support frame 42 through the pin 21, in order to avoid rotation interference between the backrest 1 and the seat 2, and to make the backrest 1 have a larger rotation range, the backrest 1 and the backrest 1 The support frames 42 are connected by a short shaft 11 , wherein one end of the short shaft 11 is connected to the support frame 42 by a living hinge, and the other end of the short shaft 11 is connected to the side of the backrest 1 by a live hinge.

The driving device includes a main body and a drive member that can expand and contract relative to the main body. The selection of the driving device can adopt various driving structures in the prior art, such as a pneumatic driving device (air cylinder), a hydraulic driving device (hydraulic cylinder) or a manual drive. Devices (such as screw nut adjustment).

In this embodiment, an electric push rod is simply used as the driving device, and the electric push rod includes a push tube 51 and a push rod 52 that can expand and contract relative to the push tube 51, wherein the push tube 51 is hinged to the underframe 41 of the base, The top of the push rod 52 is hinged with the bottom of the seat 2, and the telescopic movement of the push rod 52 is realized by the motor 53 arranged on the push cylinder 51, and the underframe 41 of the base is provided with a control device capable of controlling the operation of the motor 53 6. In addition to controlling the motor 53, the control device 6 can also control the work of other parts of the massage machine, such as the walking of the massage machine core, the detection of the sensor, the work of the display screen, etc. The control device can adopt the existing technology. The realization of the control equipment and circuit will not be described in detail here; when the driving device is replaced by a cylinder, correspondingly, the control device 6 is an air pump that controls the expansion and contraction of the piston of the cylinder; when the driving device is a hydraulic cylinder, the control device 6 is A hydraulic pump that controls the expansion and contraction of the piston rod of the hydraulic cylinder.

The link mechanism of this embodiment is used to adjust the reclining angles of the backrest 1, the seat 2 and the legs 3, and the link mechanism includes a first link 71, a second link 72, a third link 73 and The fourth connecting rod 74, wherein, one end of the first connecting rod 71 is hinged on the underframe 41 of the base, one end of the second connecting rod 72 is hinged at the bottom of the seat 2, the other end of the first connecting rod 71 and the second connecting rod The other end of 72 is hinged as a living hinge 8; one end of the third connecting rod 73 is hinged on the living hinge 8, and the other end of the third connecting rod 73 is hinged at the bottom of the backrest 1; the fourth connecting rod One end of 74 is hinged on the bottom end of the backrest 1, and the hinge point between the fourth link 74 and the backrest 1 and the hinge point between the third link 73 and the backrest 1 are mutually staggered;

In order to maintain a balanced force and to better support the seat 2, the push cylinder 51 is arranged below the front end of the seat 2, and one end of the second connecting rod 72 and the top of the push rod 52 are respectively staggered and hinged on the seat. 2, and the hinge points between the second connecting rod 72 and the push rod 52 and the seat 2 are also arranged close to the front end of the seat 2. On the one hand, the electric push rod device can drive the front end of the seat 2 to turn up. On the other hand, it can also play the role of supporting the seat part 2 to improve the overall stability of the massage machine; in order to realize the linkage of the backrest part 1 falling while the seat part 2 is lifted, the movable hinge part 8 is located between the support frame 42 and Between the push cylinders 51;

The leg 3 of this embodiment includes a push plate 31, a first leg 32 and a second leg 33, wherein one end of the first leg 32 is hinged to the front end of the seat 2, and the other end of the first leg 32 is It is hinged with one end of the second leg 33, the other end of the second leg 33 is hinged with one end of the push plate 31, and the other end of the push plate 31 is hinged at the bottom at the front end of the seat 2, so the seat 2. A four-link structure that can be linked with each other is also formed between the first leg 32, the second leg 33 and the push plate 31, and the other end of the fourth link 74 is hinged at the upper position near the other end of the push plate 31 , the push plate 31 can be driven by the fourth connecting rod 74, and the pushing plate 31 increases the travel distance of the fourth connecting rod 74, so that the first support foot 32 and the second support foot 33 can obtain a greater tilt angle adjustment Range; during use, the calf of the human body is placed on the first support foot 32, and the two soles of the feet can be stepped on the second support foot 33, because there is a movable space between the first support foot 32 and the second support foot 33 Hinged connection, when the massage machine is tilted, the lower leg of the human body can be slowly lifted by the upturning of the second support foot 33, and the bending angle between the lower leg and the thigh can be adjusted according to the different tilting postures , to avoid the state that the lower legs are always hanging and drooping during the dumping process of the massage machine, which can make the user's legs more comfortable and more ergonomic.

In addition, the living hinge 8 in the link mechanism can be a hinge point or a hinge shaft. If a hinge point is used, the other end of the first connecting rod 71, the other end of the second connecting rod 72 and the third One end of the connecting rod 73 is jointly hinged on the hinge point, and the first connecting rod 71, the second connecting rod 72 and the third connecting rod 73 are located in the same plane; The other end of the second connecting rod 72 and one end of the third connecting rod 73 can be hinged on different positions of the hinge shaft in dislocation, after the first connecting rod 71, the second connecting rod 72 and the third connecting rod 73 are hingedly connected to each other and They are not located in the same plane, but staggered from each other. The connection method using hinge points has higher requirements for installation. It must be ensured that the first connecting rod 71, the second connecting rod 72 and the third connecting rod 73 are in the same plane, and once the first connecting rod 71 and the second connecting rod are removed 72 and one of the third connecting rods 73, the other two connecting rods will be scattered; and the method of using the hinged shaft can facilitate the difficulty of assembly and disassembly, and once the first connecting rod 71 is removed 1. One of the second connecting rod 72 and the third connecting rod 73 will not affect the connection structure of the remaining connecting rods.

This embodiment provides a massage machine that simultaneously adjusts the reclining angles of the backrest 1, the seat 2, and the legs 3 with a driving device and an auxiliary linkage mechanism. The whole massage machine is only suitable for one driving device. Under the premise of ensuring the effect, the structure of the massage machine is simpler and the manufacturing cost is low.

As shown in Figures 3 to 5, it is the state of use of the massage machine in this embodiment when the push rod 52 (driver) is pushed out to different lengths. The working principle of the tilting angle of the massage machine is as follows: start the control device 6, push rod 52 protrudes from the push cylinder 51, at this moment, the seat 2 can rotate around the hinge point connected with the support frame 42 under the thrust of the push rod 52, and the front end of the seat 2 is lifted upward; the rotation of the seat 2 The angle between the first connecting rod 71 and the second connecting rod 72 is driven to gradually increase, and the living hinge part 8 gradually moves toward the push rod 52 with the upturning of the seat part 2; Fall down under the traction of the three connecting rods 73, and drive the push plate 31 to lift the leg 3 through the fourth connecting rod 74, so that the leg 3 is also gradually tilted upwards, and the stretching of the push rod 52 can be controlled by the control device 6. The length is so that the user can adjust the angle to the desired massage posture. The coordinated action of the driving device and the connecting rod structure realizes the linkage of the backrest 1, seat 2 and leg 3 of the massage machine, forming different massage machines. Adjust the posture to meet the user's massage needs in different sitting postures; when the massage machine needs to be reset, start the control device 6, so that the push rod 52 is retracted into the push cylinder 51, and the backrest 1, seat 2 and legs Part 3 returns to the initial state under the action of the driving device and the connecting mechanism.

Wherein, Fig. 5 is the state of use of the massage machine when the push rod 52 is fully pushed out. At this time, the inclination angles of the backrest 1, the seat 2 and the legs 3 reach the limit position, and the inclination angle of the backrest 1 reaches a nearly horizontal position. It can realize the simulation of zero-gravity state. The user sits in the massage machine in this state, with his knees slightly higher than the heart, and the gravity is evenly distributed on the whole body, so as to realize a completely relaxed, natural and comfortable massage posture.

Claims (6)

1. A massage chair capable of simulating a zero-gravity state, including The base has a horizontally arranged underframe (41) and a support frame (42) vertically fixed on the underframe (41), and the base is provided with a backrest (1), a seat (2) and legs (3), the seat (2) and the leg (3) are hingedly connected; It is characterized in that: it also includes a link mechanism for adjusting the inclination angles of the backrest (1), the seat (2) and the legs (3); and a driving device, driving the linkage mechanism to act; Wherein, the backrest part (1) and the seat part (2) are respectively movable and hinged on the support frame (42); The drive device includes a body and a drive part that can be stretched relative to the body, the body of the drive device is hinged on the chassis (41) of the base, and the end of the drive part of the drive device is hinged on the base the bottom of part (2); The linkage mechanism includes a first linkage (71), a second linkage (72), a third linkage (73) and a fourth linkage (74), wherein the first linkage (71 ) one end is hinged on the underframe (41) of the base, one end of the second connecting rod (72) is hinged on the bottom of the seat (2), and the other end of the first connecting rod (71) It is hinged with the other end of the second connecting rod (72) to form a living hinge (8); one end of the third connecting rod (73) is hinged on the living hinge (8), and the first The other end of the three connecting rods (73) is hinged at the bottom of the backrest (1); one end of the fourth connecting rod (74) is hinged at the bottom of the backrest (1), and the fourth connecting rod (74) is hinged at the bottom of the backrest (1). The other end of the rod (74) is flexibly connected to the leg (3). 2. The massage chair capable of simulating a zero-gravity state according to claim 1, characterized in that: said leg (3) includes a push plate (31), a first leg (32) and a second leg (33), one end of the first brace (32) is hinged to the front end of the seat (2), the other end of the first brace (32) is connected to one end of the second brace (33) The other end of the second leg (33) is hinged to one end of the push plate (31), and the other end of the push plate (31) is hinged on the bottom at the front end of the seat (2). , the other end of the fourth connecting rod (74) is hinged at a position close to the other end of the push plate (31). 3. The massage chair capable of simulating a zero-gravity state according to claim 1, characterized in that: the movable hinge (8) is a hinge point, and the first connecting rod (71), the second connecting rod ( 72) and the third connecting rod (73) are located in the same plane. 4. The massage chair capable of simulating a zero-gravity state according to claim 1, characterized in that: the movable hinge (8) is a hinge shaft, and the first connecting rod (71), the second connecting rod ( 72) and the third connecting rod (73) are respectively dislocated and hinged on the hinge shaft. 5. The massage chair capable of simulating a zero-gravity state according to claim 1 or 2 or 3 or 4, characterized in that: the driving device is an electric push rod, and the electric push rod includes a connection with the base The push cylinder (51) hinged to the bottom frame (41) and the push rod (52) hinged to the bottom of the seat (2), the push cylinder (51) is provided with a device for driving the push rod (52) ) a motor (53) for telescopic action, and a control device (6) capable of controlling the operation of the motor (53) is also provided on the underframe (41) of the base. 6. The massage chair capable of simulating a zero-gravity state according to claim 1 or 2 or 3 or 4, wherein the driving device is a power cylinder, and the power cylinder includes a bottom that is connected to the base frame (41) hinged cylinder and the piston hinged with the bottom of the seat (2), the bottom frame (41) of the base is also provided with a control device (6 ).

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