Steel frame structure of a massage chair

Abstract

The present invention relates to a steel frame structure of a massage chair, comprising a seat frame, a leg frame and a backrest frame movably installed on the seat frame, wherein the seat frame is equipped with a driving member connected to the leg frame to drive the swing of the leg frame, and further comprises two guide rail racks, wherein the mutually opposing ends of the leg frame and the backrest frame are connected through a hinge member, wherein two first mounting guide rails are installed oppositely on the leg frame and two second mounting guide rails are installed oppositely on the backrest frame, wherein a notch is installed between the first mounting guide rail and the second mounting guide rail, and the guide rail rack is installed along the longitudinal direction of the first mounting guide rail and the second mounting guide rail, wherein the front end of the guide rail rack is mounted on the first mounting guide rail through a first connecting member, and the rear end of the guide rail rack is mounted on the second mounting guide rail through a second connecting member. By adopting the above technical method, the present invention provides a steel frame structure for a massage chair, which enables angle opening of the backrest guide rail and leg guide rail by installing only a single rack, thereby making the structure simpler.

Description

Technology Field

[0001] The present invention relates to the field of massage chair technology, and in particular to a steel frame structure of a massage chair. Background Technology

[0002] The massage chair frame is one of the core components of a massage chair and is primarily used to support the massage chair body and the human body. In conventional massage chairs, particularly those equipped with a reclining position adjustment function, the massage chair typically comprises a seat frame, a backrest frame installed on the seat frame, and a leg frame. An electric push rod is installed on the seat frame, and the output end of the electric push rod is connected to the leg frame. By driving the movement of the leg frame and changing the opening and closing angle between the leg frame and the backrest frame, the adjustment and switching between sitting and reclining positions is realized. Both the existing backrest frame and leg frame are equipped with racks, which are installed as separate units and connected to each other through the meshing of connecting gears. Consequently, the structure of the massage chair frame is relatively complex and is susceptible to affecting the stability between the racks. The problem to be solved

[0003] Purpose of the present invention: To overcome the defects of the prior art, the present invention provides a steel frame structure for a massage chair, which enables angle opening of the backrest guide rail and leg guide rail by installing only a single rack, thereby making the structure simpler. means of solving the problem

[0004] Technical solution of the present invention: The steel frame structure of the massage chair comprises a seat frame, a leg frame and a backrest frame movably installed on the seat frame, and the seat frame is equipped with a driving member connected to the leg frame to drive the swing of the leg frame, and further comprises two guide rail racks, wherein mutually opposing ends of the leg frame and the backrest frame are connected through a hinge member, and the leg frame is equipped with two opposing first mounting guide rails, and the backrest frame is equipped with two opposing second mounting guide rails, and a notch is installed between the first mounting guide rails and the second mounting guide rails, and the guide rail rack is installed along the longitudinal direction of the first mounting guide rail and the second mounting guide rail, the front end of the guide rail rack is mounted on the first mounting guide rail through a small first connecting member, and the rear end of the guide rail rack is mounted on the second mounting guide rail through a small second connecting member, and the first mounting guide rail is equipped with a small elongated groove along the longitudinal direction, and the first connecting member penetrates within the elongated groove It is installed.

[0005] Advanced configuration: further includes a guide rail compression strip (8), said guide rail compression strip (8) is installed in a "Z" shape, one end of the guide rail compression strip (8) is connected to the leg frame (2) through a fastening member, and an open groove (32) is provided in the backrest frame (3) to allow the other end of the guide rail compression strip (8) to move.

[0006] Advanced configuration: The hinge member comprises a screw, an axle sleeve, an inner liner sleeve, an outer liner sleeve, and a nut, and a mounting plate is installed on the backrest frame, the mounting plate is located on the outer side of the leg frame, a mounting axle hole is installed in the mounting plate, the axle sleeve is located within the mounting axle hole, the inner liner sleeve and the outer liner sleeve are each located on both sides of the mounting plate, a connecting structure is installed between the inner liner sleeve and the outer liner sleeve, and the screw penetrates from the inner side of the leg frame and extends to the outer side of the outer liner sleeve and is secured by a nut.

[0007] Advanced configuration: A first sliding wheel is installed on both sides of the leg frame, and a first sliding groove is correspondingly installed in the seat frame, and the first sliding wheel is installed so as to be slidably installed within the first sliding groove, and a second sliding wheel is installed on both sides of the backrest frame, and a second sliding groove is correspondingly installed in the seat frame, and the second sliding wheel is installed so as to be slidably installed within the second sliding groove, and the first sliding groove is installed along the longitudinal direction of the seat frame and has a narrow angle with the horizontal plane, the front end of the first sliding groove is higher than the rear end of the first sliding groove, and the second sliding groove is located above the first sliding groove, the front end of the second sliding groove is lower than the rear end of the second sliding groove, and the front end of the second sliding groove and the rear end of the first sliding groove intersect.

[0008] Advanced configuration: A first limiting member is installed at the front end of the first sliding groove and is used to block the first sliding wheel from sliding out of the first sliding groove, and a second limiting member is installed at the rear end of the second sliding groove and is used to block the second sliding wheel from sliding out of the second sliding groove. Effects of the invention

[0009] By adopting the above technical solution, a guide rail rack is installed on each side of the leg frame, the front end of the guide rail rack is connected to a first mounting guide rail, and the rear end of the guide rail rack is connected to a second mounting guide rail. The leg frame and the backrest frame are connected via a hinge member, allowing them to swing around the hinge member. By adopting a single pivot point and a guide rail rack, the opening and closing of the leg frame and the backrest frame can be realized, and the angles of the leg frame and the backrest frame can be freely adjusted, enabling the user to perform massage in various postures. When the guide rail rack is deformed and the leg frame moves under the action of a driving member, the guide rail rack can move on the first mounting guide rail, thereby realizing the opening and closing of a single rack. A notch is installed between the first mounting guide rail and the second mounting guide rail to mitigate the deformation of the single guide rail rack. The driving member drives the leg frame to move within the first sliding groove of the seat frame, and the leg frame moves within the second sliding groove accompanied by the backrest frame. Thus, the opening and closing of the leg frame and the backrest frame is realized, and the combination of the sliding wheel and the sliding groove ensures structural stability when the leg and backrest frame move. Brief explanation of the drawing

[0010] FIG. 1 is a schematic diagram of a chair frame when sitting and lying down in a specific embodiment of the present invention; FIG. 2 is a schematic diagram of a chair frame when lying down in a specific embodiment of the present invention; FIG. 3 is an exploded view of the leg frame and the backrest frame in a specific embodiment of the present invention; FIG. 4 is a schematic diagram of a backrest frame in a specific embodiment of the present invention; FIG. 5 is a schematic diagram of a leg frame in a specific embodiment of the present invention; FIG. 6 is a schematic diagram of a seat frame in a specific embodiment of the present invention; FIG. 7 is a schematic diagram of the connection between the leg frame and the backrest frame in a specific embodiment of the present invention. Specific details for implementing the invention

[0011] The technical method of the present embodiment is described below in conjunction with the attached drawings in a clear and complete manner. It is evident that the described embodiment is merely a partial embodiment of the present invention and not the entirety of the embodiment. All other embodiments obtained by a person skilled in the art without performing creative labor, based on the embodiment of the present invention, fall within the scope of protection of the present invention.

[0012] It needs to be explained that in the technology of the present invention, all directional indications (e.g., up, down, front, back, etc.) are used merely to interpret the relative positional relationships and movement situations between each part under a specific posture (as shown in the attached drawings), and if a change occurs in the said specific posture, the corresponding directional indications also change accordingly.

[0013] Furthermore, the technology related to "first," "second," etc. in this invention is used solely for technical purposes and should not be understood as indicating or implying their relative importance, nor as implicitly specifying the quantity of the indicated technical features. In the technology of this invention, the implication of "some" is at least two, e.g., two, three, etc., unless otherwise clearly and specifically limited.

[0014] Furthermore, while technical solutions among the embodiments of the present invention may be combined with one another, they must be based on what a person skilled in the art can realize. If mutual contradictions appear in the combination of technical solutions or if they cannot be realized, such combination of technical solutions must be recognized as not existing and not falling within the scope of protection required by the present invention.

[0015] As illustrated in FIG. 1-7, the steel frame structure of the massage chair comprises a seat frame (1), a leg frame (2) movably installed on the seat frame (1), and a backrest frame (3). A driving member (4) is installed on the seat frame (1) and connected to the leg frame (2) to drive the swing of the leg frame (2). The driving member (4) is installed as an electric push rod and is fixedly mounted on the seat frame (1). The output end of the driving member (4) is connected to the leg frame (2) and further comprises two guide rail racks (5). The mutually opposing ends of the leg frame (2) and the backrest frame (3) are connected via a hinge member (6). Two first mounting guide rails (21) are installed oppositely on the leg frame (2), and two second mounting guide rails (31) are installed oppositely on the backrest frame (3). A notch (7) is formed between the first mounting guide rails (21) and the second mounting guide rails (31). A guide rail rack (5) is installed along the longitudinal direction of a first mounting guide rail (21) and a second mounting guide rail (31), the front end of the guide rail rack (5) is mounted on the first mounting guide rail (21) through a small first connecting member (51), and the rear end of the guide rail rack (5) is mounted on the second mounting guide rail (31) through a small second connecting member (52), the connecting member is installed with a bolt, and a long groove (211) is installed along the longitudinal direction of the first mounting guide rail (21), and the first connecting member (51) is installed through the long groove (211).

[0016] Advanced configuration: further includes a guide rail compression strip (8), said guide rail compression strip (8) is installed in a "Z" shape, one end of the guide rail compression strip (8) is connected to the leg frame (2) through a fastening member, and the backrest frame (3) has an open groove (32) that allows the other end of the guide rail compression strip (8) to move, and the guide rail compression strip (8) is fixed to the leg frame (2) through a bolt and moves together with the movement of the leg frame (2).

[0017] Advanced configuration: The hinge member (6) comprises a screw (61), an axle sleeve (62), an inner liner sleeve (63), an outer liner sleeve (64), and a nut (65); a mounting plate (33) is installed on the backrest frame (3); the mounting plate (33) is located on the outside of the leg frame (2); a mounting axle hole is installed in the mounting plate (33); the axle sleeve (62) is located within the mounting axle hole; the inner liner sleeve (63) and the outer liner sleeve (64) are each located on both sides of the mounting plate (33); a connecting structure is installed between the inner liner sleeve (63) and the outer liner sleeve (64); the screw (61) penetrates from the inside of the leg frame (2) and extends to the outside of the outer liner sleeve (64) and is secured by a nut (65); a connecting post is installed in one of the inner liner sleeve (63) and the outer liner sleeve (64), and a connecting hole is installed in the other; the connecting post is the connecting hole The nut (65) is inserted and installed inside to realize the connection of the inner and outer liner sleeves (64), the nut (65) is located on the outer side of the outer liner sleeve (64), a washer (66) is installed between it and the outer liner sleeve (64), and the screw (61) adopts a displaced axis shoulder screw (61).

[0018] Advanced configuration: A first sliding wheel (22) is installed on both sides of the leg frame (2), and a first sliding groove (11) is correspondingly installed on the seat frame (1). The first sliding wheel (22) is installed to be slidable within the first sliding groove (11). A second sliding wheel (34) is installed on both sides of the backrest frame (3). A second sliding groove (12) is correspondingly installed on the seat frame (1). The second sliding wheel (34) is installed to be slidable within the second sliding groove (12). The sliding wheel is mounted at a corresponding position on the leg frame (2) and the backrest frame (3) via an axle shoulder screw (61). Since sliding wheels and sliding grooves are installed on both sides, support can be provided on the left and right sides of the leg frame (2) and the backrest frame (3), thereby improving stability. The first sliding groove (11) is installed along the longitudinal direction of the seat frame (1) and has a narrow angle with respect to the horizontal plane. The first sliding The front end of the groove (11) is higher than the rear end of the first sliding groove (11), the front end of the first sliding groove (11) is installed in an arc shape, and the rear end is a straight sliding groove, the second sliding groove (12) is located above the first sliding groove (11), the front end of the second sliding groove (12) is lower than the rear end of the second sliding groove (12), the second sliding groove (12) is a straight sliding groove, the second sliding groove (12) gradually rises from the front end to the rear end, and the front end of the second sliding groove (12) and the rear end of the first sliding groove (11) intersect, and the combination of the sliding wheel and the sliding groove can cause a guiding action when the leg frame (2) and the backrest frame (3) slide, so that movement is smoother and noise generated during movement is reduced, and two first sliding wheels (22) are installed on both sides of the leg frame (2) to improve stability when the leg frame (2) moves, and the first sliding A first limiting member (111) is installed at the front end of the home (11), andA first sliding wheel (22) is used to prevent sliding out of the first sliding groove (11), and a second limiting member (121) is installed at the rear end of the second sliding groove (12). A second sliding wheel (34) is used to prevent sliding out of the second sliding groove (12). The limiting member is installed as a limiting plate and may also be other limiting structures. A few support rods (13), a first support plate (14), and a second support plate (15) are installed on the seat frame (1). Each support rod is installed sequentially along the front-rear direction of the seat frame (1). The height of the middle support rod is lower than the height of the support rods on both sides. The first sliding groove (11) is installed on the inner surface of the first support plate (13), and the second sliding groove (12) is installed on the inner surface of the second support plate (14). The rear end of the first support plate (13) is installed in contact with one of the support rods, and the first sliding The rear end of the groove (11) is sealed, and the front end of the second support plate (14) contacts the upper surface of the first support plate (13) to seal the front end of the second sliding groove (12), and the structure is more compact, and there is no need to install limiting members at both ends of the sliding groove.

[0019] By adopting the above technical solution, a guide rail rack is installed on each side of the leg frame, the front end of the guide rail rack is connected to a first mounting guide rail, and the rear end of the guide rail rack is connected to a second mounting guide rail. The leg frame and the backrest frame are connected via a hinge member, allowing them to swing around the hinge member. By adopting a single pivot point and a guide rail rack, the opening and closing of the leg frame and the backrest frame can be realized, and the angles of the leg frame and the backrest frame can be freely adjusted, enabling the user to perform massage in various postures. When the guide rail rack is deformed and the leg frame moves under the action of a driving member, the guide rail rack can move on the first mounting guide rail, thereby realizing the opening and closing of a single rack. A notch is installed between the first mounting guide rail and the second mounting guide rail to mitigate the deformation of the single guide rail rack. The driving member drives the leg frame to move within the first sliding groove of the seat frame, and the leg frame moves within the second sliding groove accompanied by the backrest frame. Thus, the opening and closing of the leg frame and the backrest frame is realized, and the combination of the sliding wheel and the sliding groove ensures structural stability when the leg and backrest frame move. Explanation of the symbols

[0020] In the drawing, 1. seat frame; 11. first sliding groove; 111. first limiting member; 12. second sliding groove; 121. second limiting member; 2. leg frame; 21. first mounting guide rail; 211. long groove; 22. first sliding wheel; 3. backrest frame; 31. second mounting guide rail; 32. open groove; 33. mounting plate; 34. second sliding wheel; 4. driving member; 5. guide rail rack; 51. first connecting member; 52. second connecting member; 6. hinge member; 61. screw; 62. shaft sleeve; 63. inner liner sleeve; 64. outer liner sleeve; 65. nut; 66. washer; 7. notch; 8. guide rail compression strip.

Claims

Claim 1 In the steel frame structure of a massage chair, the structure comprises a seat frame (1), a leg frame (2) and a backrest frame (3) movably installed on the seat frame (1), a driving member (4) connected to the leg frame (2) to drive the swing of the leg frame (2) is installed on the seat frame (1), and further comprises two guide rail racks (5), mutually opposing ends of the leg frame (2) and the backrest frame (3) are connected through a hinge member (6), two first mounting guide rails (21) are installed oppositely on the leg frame (2), and two second mounting guide rails (31) are installed oppositely on the backrest frame (3), a notch (7) is installed between the first mounting guide rails (21) and the second mounting guide rails (31), and the guide rail racks (5) are installed along the longitudinal direction of the first mounting guide rails (21) and the second mounting guide rails (31), and the guide rails A steel frame structure of a massage chair, characterized in that the front end of the rack (5) is mounted on a first mounting guide rail (21) through a first connecting member (51), the rear end of the guide rail rack (5) is mounted on a second mounting guide rail (31) through a second connecting member (52), the first mounting guide rail (21) has a long groove (211) installed along the length direction, and the first connecting member (51) is installed through the long groove (211). Claim 2 A steel frame structure of a massage chair, characterized in that, in claim 1, it further includes a guide rail compression strip (8), wherein the guide rail compression strip (8) is installed in a "Z" shape, one end of the guide rail compression strip (8) is connected to the leg frame (2) through a fastening member, and the backrest frame (3) has an open groove (32) that allows the other end of the guide rail compression strip (8) to move. Claim 3 A steel frame structure of a massage chair according to claim 1 or 2, wherein the hinge member (6) comprises a screw (61), an axle sleeve (62), an inner liner sleeve (63), an outer liner sleeve (64), and a nut (65); a mounting plate (33) is installed on the backrest frame (3); the mounting plate (33) is located on the outer side of the leg frame (2); a mounting axle hole is installed in the mounting plate (33); the axle sleeve (62) is located within the mounting axle hole; the inner liner sleeve (63) and the outer liner sleeve (64) are each located on both sides of the mounting plate (33); a connecting structure is installed between the inner liner sleeve (63) and the outer liner sleeve (64); and the screw (61) penetrates from the inner side of the leg frame (2) and extends to the outer side of the outer liner sleeve (64) and is secured by a nut (65). Claim 4 In claim 1 or 2, a first sliding wheel (22) is installed on both sides of the leg frame (2), and a first sliding groove (11) is correspondingly installed in the seat frame (1), and the first sliding wheel (22) is installed so as to be slidably installed within the first sliding groove (11), and a second sliding wheel (34) is installed on both sides of the backrest frame (3), and a second sliding groove (12) is correspondingly installed in the seat frame (1), and the second sliding wheel (34) is installed so as to be slidably installed within the second sliding groove (12), and the first sliding groove (11) is installed along the longitudinal direction of the seat frame (1) and has a narrow angle with respect to the horizontal plane, the front end of the first sliding groove (11) is higher than the rear end of the first sliding groove (11), and the second sliding groove (12) is located above the first sliding groove (11), and the front end of the second sliding groove (12) is the second sliding A steel frame structure of a massage chair, characterized in that it is lower than the rear end of the groove (12), and the front end of the second sliding groove (12) and the rear end of the first sliding groove (11) intersect. Claim 5 A steel frame structure of a massage chair, characterized in that, in claim 4, a first limiting member (111) is installed at the front end of the first sliding groove (11) and is used to block the first sliding wheel (22) from sliding out of the first sliding groove (11), and a second limiting member (121) is installed at the rear end of the second sliding groove (12) and is used to block the second sliding wheel (34) from sliding out of the second sliding groove (12).

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