Massage chair with interlocking forward and backward sliding and sitting posture adjustment

Abstract

The present invention provides a massage chair with forward and backward sliding and sitting posture adjustment linked to each other, comprising: a base frame, the base frame comprising a cushion base frame, the cushion base frame being symmetrically provided with supporting frames on two opposite sides along the left and right directions of the massage chair, each supporting frame being provided with a slideway extending along the front and back directions of the massage chair; a sitting frame, the sitting frame being symmetrically provided with hinged structures on two opposite sides along the left and right directions of the massage chair, all the hinged structures corresponding to all the slideways one by one and moving in coordination; a backrest frame, the backrest frame being rotatably connected with the sitting frame via hinged structures on two opposite sides along the left and right directions of the massage chair; a linkage mechanism, the linkage mechanism comprising a first linkage rod and a second linkage rod; a driving device, the driving device being used to drive the sitting frame to slide forward and backward along the slideway. The present invention can make the sitting frame slide toward the front of the massage chair, adjust the swing angles of the sitting frame and the backrest frame, and adjust the angle between the body and legs of a user of the massage chair only by using one driving device.

Description

Technical Field

[0001] The invention relates to the technical field of massage equipment, and in particular to a massage chair with forward and backward sliding and sitting posture adjustment linked to each other. Background Art

[0002] As people's living standards continue to improve, people are more and more concerned about health and wellness, and massage chairs will gradually enter thousands of households. At present, massage chairs are developing rapidly, and technical processes are becoming more and more perfect. New materials, new technologies, and new processes are constantly being applied to new massage chair products. But at the same time, customers' requirements for products are getting higher and higher, especially the requirements for quality, price, and comfort are almost harsh. There are many problems with massage chairs at present. For example, the movement space required for the massage chair back angle adjustment, thigh angle adjustment, and forward sliding of the seat is relatively large. Most massage chairs on the market are equipped with three drive motors: back adjustment motor, thigh adjustment motor, and forward sliding motor. However, such costs are too high, resulting in the massage chair not being well popularized due to its high price, and once the motor fails, the replacement and maintenance costs are also very high. Therefore, the above problems of existing massage chairs need to be solved urgently. Summary of the invention

[0003] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the present invention is to provide a massage chair with interconnected forward and backward sliding and sitting posture adjustment. Only through a driving device, the seat frame can slide toward the front and back of the massage chair, and at the same time, the swing angles of the seat frame and the backrest frame can be adjusted, and the angle of the body and legs of the massage chair user can be adjusted, thereby reducing the number of power sources of the massage chair, simplifying the overall structure of the massage chair, greatly saving the manufacturing and maintenance costs of the massage chair, and improving the massage experience of the massage chair.

[0004] In order to solve the above technical problems, the present invention provides a massage chair with forward and backward sliding and sitting posture adjustment linked to each other, comprising:

[0005] The base frame includes a cushion frame, and the cushion frame is symmetrically provided with supporting frames on two opposite sides of the massage chair in the left and right directions, and each supporting frame is provided with a slideway extending in the front and rear directions of the massage chair;

[0006] The seat frame is symmetrically provided with hinge structures on two opposite sides of the massage chair in the left and right directions, and the hinge structures on both sides correspond to the slideways on both sides one by one and move in coordination;

[0007] A backrest frame, wherein the backrest frame is rotatably connected to the seat frame via hinge structures at two opposite sides along the left and right directions of the massage chair;

[0008] The linkage mechanism comprises a first linkage rod and a second linkage rod, both ends of the first linkage rod and the second linkage rod in the extending direction are respectively a fixed hinged end and a movable swinging end, a rod body of the first linkage rod is hinged to the seat frame, the fixed hinged end of the first linkage rod is hinged to the cushion base frame, the movable swinging end of the first linkage rod is hinged to the movable swinging end of the second linkage rod, and the fixed hinged end of the second linkage rod is hinged to the backrest frame;

[0009] The driving device is used to drive the seat frame to slide forward and backward along the slideway.

[0010] Preferably, the slideway is a sliding groove opening toward the seat frame, and the hinged structure includes a hinge shaft hingedly connecting the seat frame and the backrest frame together, and the hinge shaft is provided with a roller rollingly arranged in the sliding groove.

[0011] Preferably, the seat frame has a first connecting ear at a position close to the backrest frame, and the backrest frame has a second connecting ear at a position close to the seat frame, and the first connecting ear is hinged to the second connecting ear via a hinge shaft.

[0012] Preferably, the seat frame is provided with an arc-shaped adjustment constraint hole, the center of the circle corresponding to the adjustment constraint hole is located on the axis of the hinge shaft, and the backrest frame is provided with a constraint wheel, which moves with the backrest frame and is always located in the adjustment constraint hole.

[0013] Preferably, the first linkage rod is composed of a bending lever portion and a driving lever portion, the end of the bending lever portion constituting the fixed hinged end, the driving lever portion being hinged to the seat frame and the end of the driving lever portion constituting the movable swinging end.

[0014] Preferably, the second linkage rod is composed of a first straight rod portion close to the seat frame and a second straight rod portion close to the backrest frame, the end of the first straight rod portion constitutes the movable swing end, and the end of the second straight rod portion constitutes the fixed hinged end.

[0015] Preferably, the massage chair further comprises a massage mechanism, which comprises a flexible track and a massage movement, wherein the flexible track is laid from the backrest frame to the seat frame, and the massage movement is movably arranged on the flexible track.

[0016] Preferably, the driving device includes a first mounting bracket arranged on the cushion base frame, a second mounting bracket arranged on the sitting frame, and a telescopic driver respectively hinged to the first mounting bracket and the second mounting bracket.

[0017] Preferably, the telescopic drive is an electric push rod.

[0018] Preferably, the base frame and the support frame are both rectangular frame structures.

[0019] As described above, the massage chair with forward and backward sliding movement and sitting posture adjustment interconnected by the present invention has the following beneficial effects: when the driving device drives the seat frame to move toward the front of the massage chair, on the one hand, since the seat frame is symmetrically provided with hinge structures on the two opposite sides along the left and right directions of the massage chair, and all the hinge structures correspond to all the slides one by one and move in coordination, the seat frame slides along the extension direction of the slide through the hinge structure; on the other hand, since the rod body of the first linkage rod is hinged to the seat frame, and the fixed hinge end of the first linkage rod is hinged to the cushion base frame, the first linkage rod swings in the counterclockwise direction with its fixed hinge end as the swing center, and then the seat frame swings in the clockwise direction relative to the base frame with the hinge structure as the swing center, and the swing angle of the seat frame relative to the base frame is recorded as the first adjustment angle. Since the movable swing end of the first linkage rod is hinged with the movable swing end of the second linkage rod, and the fixed hinge end of the second linkage rod is hinged with the backrest frame, the backrest frame swings clockwise relative to the sitting frame with the hinge structure as the swing center during the movement of the sitting frame, and the swing angle of the backrest frame relative to the base frame is recorded as the second adjustment angle, and the second adjustment angle is greater than the first adjustment angle. In other words, when the sitting frame and the backrest frame swing clockwise to make the massage chair user fall, the angle between the backrest frame and the sitting frame becomes larger, thereby increasing the angle between the body and legs of the massage chair user, so that the gravity of the human body is gradually evenly distributed to the entire massage chair, allowing the body to gradually enter a more natural and comfortable state of relaxation, effectively releasing physical and mental pressure and relieving fatigue in the waist and back. For example, when the body and legs of the massage chair user are about 127 degrees, the massage chair user is in a zero gravity state, and at the same time, the heart and knees are also on the same horizontal line, which effectively reduces the pressure on the heart and promotes blood circulation. When the driving device drives the seat frame to move toward the rear and lower part of the massage chair, the massage chair returns to its original state. Therefore, the massage chair with front and rear sliding and sitting posture adjustment linked to each other in the present invention uses only one driving device to make the seat frame slide toward the front and rear of the massage chair, and at the same time adjust the swing angle of the seat frame and the backrest frame, and adjust the angle of the body and legs of the user of the massage chair, thereby reducing the number of power sources of the massage chair, simplifying the overall structure of the massage chair, greatly saving the manufacturing and maintenance costs of the massage chair, and improving the massage experience of the massage chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure shows a first use state of the massage chair of the present invention in which the front-rear sliding movement and the sitting posture adjustment are linked to each other;

[0021] Figure 2 Display as Figure 1 A magnified view of part A;

[0022] Figure 3 A diagram showing a second use state of the massage chair of the present invention in which the front-rear sliding movement and the sitting posture adjustment are linked to each other;

[0023] Figure 4 Display as Figure 3 Enlarged view of part B.

[0024] Component number description

[0025] 1 Base frame

[0026] 11. Base frame

[0027] 12 Support frame

[0028] 13 Slide

[0029] 2 Sit on the stand

[0030] 21 First connection ear

[0031] 22 Adjustment of restraint holes

[0032] 3 Backrest

[0033] 31 Second connection ear

[0034] 32 Constraint Wheel

[0035] 4 Linkage mechanism

[0036] 41 First linkage rod

[0037] 411 Avoid the curved bar

[0038] 412 Driving lever

[0039] 42 Second linkage rod

[0040] 421 First straight bar

[0041] 422 Second straight rod

[0042] 5. Drive device

[0043] 51 First mounting bracket

[0044] 52 Second mounting bracket

[0045] 53 Telescopic drive

[0046] 6 Articulated structure

[0047] 61 Articulated shaft

[0048] 62 Roller DETAILED DESCRIPTION

[0049] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0050] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0051] For the convenience of description, Figure 1 The C rotation direction is defined as counterclockwise, and the rotation direction opposite to the C rotation direction is defined as clockwise.

[0052] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the present invention provides a massage chair with forward and backward sliding and sitting posture adjustment linked to each other, comprising:

[0053] The base frame 1 includes a cushion frame 11, and the cushion frame 11 is symmetrically provided with support frames 12 on two opposite sides along the left and right directions of the massage chair, and each support frame 12 is provided with a slideway 13 extending along the front and rear directions of the massage chair;

[0054] The seat frame 2 is symmetrically provided with hinge structures 6 on two opposite sides of the seat frame 2 along the left and right directions of the massage chair, and the hinge structures 6 on both sides correspond to the slideways 13 on both sides one by one and move in coordination;

[0055] The backrest frame 3 is rotatably connected to the seat frame 2 via hinge structures 6 at two opposite sides of the backrest frame 3 along the left and right directions of the massage chair;

[0056] The linkage mechanism 4 comprises a first linkage rod 41 and a second linkage rod 42. Both ends of the first linkage rod 41 and the second linkage rod 42 in the extending direction are respectively a fixed hinged end and a movable swinging end. The rod body of the first linkage rod 41 is hinged to the seat frame 2. The fixed hinged end of the first linkage rod 41 is hinged to the cushion base frame 11. The movable swinging end of the first linkage rod 41 is hinged to the movable swinging end of the second linkage rod 42. The fixed hinged end of the second linkage rod 42 is hinged to the backrest frame 3.

[0057] The driving device 5 is used to drive the sitting frame 2 to slide forward and backward along the slideway 13.

[0058] In the present invention, when the driving device 5 drives the seat frame 2 to move toward the upper front of the massage chair, on the one hand, since the seat frame 2 is symmetrically provided with hinge structures 6 on the opposite sides along the left and right directions of the massage chair, and all the hinge structures 6 correspond to all the slides 13 one by one and move in coordination, the seat frame 2 slides along the extension direction of the slide 13 through the hinge structure 6; on the other hand, since the rod body of the first linkage rod 41 is hinged to the seat frame 2, the fixed hinge end of the first linkage rod 41 is hinged to the cushion base frame 11, the first linkage rod 41 swings in the counterclockwise direction with its fixed hinge end as the swing center, and then the seat frame 2 swings in the clockwise direction relative to the base frame 1 with the hinge structure 6 as the swing center, and the swing angle of the seat frame 2 relative to the base frame 1 is recorded as the first adjustment angle. Since the movable swing end of the first linkage rod 41 is hinged to the movable swing end of the second linkage rod 42, and the fixed hinge end of the second linkage rod 42 is hinged to the backrest frame 3, the backrest frame 3 swings clockwise relative to the sitting frame 2 with the hinge structure 6 as the swing center during the movement with the sitting frame 2, and the swing angle of the backrest frame 3 relative to the base frame 1 is recorded as the second adjustment angle, and the second adjustment angle is greater than the first adjustment angle. In other words, when the sitting frame 2 and the backrest frame 3 swing clockwise to make the massage chair user tilt, the angle between the backrest frame 3 and the sitting frame 2 becomes larger, and then the angle between the body and legs of the massage chair user becomes larger, so that the gravity of the human body is gradually and evenly dispersed to the entire massage chair, allowing the body to gradually enter a more natural and comfortable state of relaxation, so as to effectively release physical and mental pressure and relieve fatigue in the waist and back. For example, when the body and legs of the massage chair user are at about 127 degrees, the massage chair user is in a zero gravity state (the massage chair simulates the zero gravity state based on the basic principle of the NASA zero gravity space capsule seat of the United States Space Agency). At the same time, the heart and the knees are also on the same horizontal line, which effectively reduces the pressure on the heart and promotes blood circulation. When the driving device 5 drives the seat frame 2 to move toward the rear and lower part of the massage chair, the massage chair returns to its original state.

[0059] Therefore, the massage chair with interconnected forward and backward sliding and sitting posture adjustment of the present invention only uses a driving device 5 to make the seat frame 2 slide forward and backward of the massage chair, and at the same time adjusts the swing angle of the seat frame 2 and the backrest frame 3, and adjusts the angle of the body and legs of the massage chair user, thereby reducing the number of power sources of the massage chair, simplifying the overall structure of the massage chair, greatly saving the manufacturing and maintenance costs of the massage chair, and improving the massage experience of the massage chair.

[0060] In order to reduce the friction resistance between the above-mentioned hinged structure 6 and the slide 13, the above-mentioned slide 13 is a sliding groove opening toward the seat frame 2, and the above-mentioned hinged structure 6 includes a hinge shaft 61 that hinges the seat frame 2 and the backrest frame 3 together, and the hinge shaft 61 is provided with a roller 62 rolling in the sliding groove.

[0061] like Figure 2 As shown, in order to facilitate the hinged connection between the seat frame 2 and the backrest frame 3, the seat frame 2 has a first connecting ear 21 at a position close to the backrest frame 3, and the backrest frame 3 has a second connecting ear 31 at a position close to the seat frame 2. The first connecting ear 21 is hinged to the second connecting ear 31 via a hinge shaft 61.

[0062] like Figure 4 As shown, in order to limit the angle between the backrest frame 3 and the seat frame 2, the seat frame 2 is provided with an arc-shaped adjustment constraint hole 22, the center of the circle corresponding to the adjustment constraint hole 22 is located on the axis of the hinge shaft 61, and the backrest frame 3 is provided with a constraint wheel 32, which moves with the backrest frame 3 and is always located in the adjustment constraint hole 22. When in use, when the constraint wheel 32 moves to one end of the adjustment constraint hole 22, the angle between the backrest frame 3 and the seat frame 2 is the smallest; when the constraint wheel 32 moves to the other end of the adjustment constraint hole 22, the angle between the backrest frame 3 and the seat frame 2 is the largest. The seat frame 2 is provided with adjustment constraint holes 22 on opposite sides along the left and right directions of the massage chair, and the number of adjustment constraint holes 22 on both sides may be inconsistent. The number and distribution of the constraint wheels 32 are adapted to the adjustment constraint holes 22.

[0063] like Figure 3 As shown, in order to make the first linkage rod 41 evade space at the front side of the massage chair, the first linkage rod 41 is composed of a evading bent rod portion 411 and a driving lever portion 412, the end of the evading bent rod portion 411 constitutes the fixed hinged end, the driving lever portion 412 is hinged to the seat frame 2 and the end of the driving lever portion 412 constitutes the movable swinging end. In order to make the second linkage rod 42 evade space at the hinge between the backrest frame 3 and the seat frame 2, the second linkage rod 42 is composed of a first straight rod portion 421 close to the seat frame 2 and a second straight rod portion 422 close to the backrest frame 3, the end of the first straight rod portion 421 constitutes the movable swinging end, and the end of the second straight rod portion 422 constitutes the fixed hinged end. In addition, as Figure 1 As shown, as another preferred embodiment of the first linkage rod 41, the portion of the first linkage rod 41 close to the fixed hinge end abuts against the ground when the massage chair is in the original state to support the seat frame 2, thereby improving the stability of the seat frame 2.

[0064] The massage chair further comprises a massage mechanism. In order to enable the massage mechanism to massage the thighs, buttocks, back and other parts of the massage chair user, the massage mechanism comprises a flexible track and a massage movement. The flexible track is laid from the backrest frame 3 to the seat frame 2, and the massage movement is arranged on the flexible track. When the angle between the backrest frame 3 and the seat frame 2 changes, the flexible track also deforms adaptively.

[0065] like Figure 3 As shown, in order to facilitate the installation of the driving device 5 between the base frame 1 and the sitting frame 2, the driving device 5 includes a first mounting bracket 51 provided on the cushion base frame 11, a second mounting bracket 52 provided on the sitting frame 2, and a telescopic driver 53 respectively hinged to the first mounting bracket 51 and the second mounting bracket 52. Specifically, the telescopic driver 53 is an electric push rod.

[0066] In order to facilitate the manufacture of the base frame 1, the base frame 11 and the support frame 12 are both rectangular frame structures.

[0067] In summary, the massage chair with forward and backward sliding and sitting posture adjustment interconnected in the present invention uses only one driving device to make the seat frame slide forward and backward of the massage chair, and at the same time adjust the swing angle of the seat frame and the backrest frame, and adjust the angle of the body and legs of the user of the massage chair, thereby reducing the number of power sources of the massage chair, simplifying the overall structure of the massage chair, greatly saving the manufacturing and maintenance costs of the massage chair, and improving the massage experience of the massage chair. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0068] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A massage chair with interlocking forward and backward sliding and sitting posture adjustment, characterized in that: include: A base frame (1), the base frame (1) comprising a cushion base frame (11), the cushion base frame (11) being symmetrically provided with support frames (12) on two opposite sides along the left and right directions of the massage chair, each support frame (12) being provided with a slideway (13) extending along the front and rear directions of the massage chair; A seat frame (2), the seat frame (2) being symmetrically provided with hinge structures (6) along two opposite sides in the left and right directions of the massage chair, the hinge structures (6) on the two sides corresponding one to one with the slideways (13) on the two sides and moving in coordination; A backrest frame (3), wherein the backrest frame (3) is rotatably connected to the seat frame (2) via hinge structures (6) at two opposite sides along the left and right directions of the massage chair; The linkage mechanism (4) comprises a first linkage rod (41) and a second linkage rod (42), both ends of the first linkage rod (41) and the second linkage rod (42) in the extension direction are respectively a fixed hinged end and a movable swinging end, the rod body of the first linkage rod (41) is hinged to the seat frame (2), the fixed hinged end of the first linkage rod (41) is hinged to the cushion base frame (11), the movable swinging end of the first linkage rod (41) is hinged to the movable swinging end of the second linkage rod (42), and the fixed hinged end of the second linkage rod (42) is hinged to the backrest frame (3); the first linkage rod (41) is composed of a circumventing bent rod portion (411) and a driving lever portion (412), the end of the circumventing bent rod portion (411) constitutes the fixed hinged end, the driving lever portion (412) is hinged to the seat frame (2) and the end of the driving lever portion (412) constitutes the movable swinging end; the second linkage rod (42) is composed of a first straight rod portion (421) close to the seat frame (2) and a second straight rod portion (422) close to the backrest frame (3), the end of the first straight rod portion (421) constitutes the movable swinging end, and the end of the second straight rod portion (422) constitutes the fixed hinged end; A driving device (5) is used to drive the sitting frame (2) to slide forward and backward along the slideway (13).

2. The massage chair with interlocking forward and backward sliding and sitting posture adjustment according to claim 1, characterized in that: The slideway (13) is a sliding groove opening toward the seat frame (2); the hinge structure (6) comprises a hinge shaft (61) hingedly connecting the seat frame (2) and the backrest frame (3); and a roller (62) rollingly arranged in the sliding groove is provided on the hinge shaft (61).

3. The massage chair with interlocking forward and backward sliding and sitting posture adjustment according to claim 2, characterized in that: The seat frame (2) has a first connecting ear (21) at a position close to the backrest frame (3), and the backrest frame (3) has a second connecting ear (31) at a position close to the seat frame (2). The first connecting ear (21) is hingedly connected to the second connecting ear (31) via a hinge shaft (61).

4. The massage chair with interlocking forward and backward sliding and sitting posture adjustment according to claim 2, characterized in that: The seat frame (2) is provided with an arc-shaped adjustment constraint hole (22), the center of the circle corresponding to the adjustment constraint hole (22) is located on the axis of the hinge shaft (61), and the backrest frame (3) is provided with a constraint wheel (32), the constraint wheel (32) moves with the backrest frame (3) and is always located in the adjustment constraint hole (22).

5. The massage chair with interlocking forward and backward sliding and sitting posture adjustment according to claim 1, characterized in that: The massage chair also includes a massage mechanism, which includes a flexible track and a massage movement. The flexible track is laid from the backrest frame (3) to the seat frame (2), and the massage movement is movably arranged on the flexible track.

6. The massage chair with interlocking forward and backward sliding and sitting posture adjustment according to claim 1, characterized in that: The driving device (5) comprises a first mounting bracket (51) provided on the cushion base frame (11), a second mounting bracket (52) provided on the sitting frame (2), and a telescopic driver (53) respectively articulated to the first mounting bracket (51) and the second mounting bracket (52).

7. The massage chair with interlocking forward and backward sliding and sitting posture adjustment according to claim 6, characterized in that: The telescopic driver (53) is an electric push rod.

8. The massage chair with interlocking forward and backward sliding and sitting posture adjustment according to claim 1, characterized in that: The base frame (11) and the support frame (12) are both rectangular frame structures.

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