CN217472327U - Massage chair and chair frame inclining mechanism thereof - Google Patents

Abstract

The utility model discloses a massage chair and chair frame inclining mechanism thereof, which comprises a base, a chair frame and an electric push rod, wherein the chair frame is slidably arranged on the base, the electric push rod is used for driving the chair frame to incline and incline, the inclining mechanism comprises two sets of sliding components symmetrically arranged in the left and right directions, the chair frame is positioned between the two sets of sliding components, the sliding components comprise a first sliding track and a second sliding track, the first sliding track and the second sliding track are fixedly connected with the base, the first sliding track and the second sliding track are arranged at an included angle, and the first sliding track and the second sliding track of the chair frame are movably connected; the electric push rod comprises a driving end used for driving the chair frame to move, the electric push rod is hinged with the base, and the driving end of the electric push rod is hinged with the chair frame. Therefore, the first sliding rail and the second sliding rail which are arranged at an included angle improve guiding and supporting for inclining the chair frame, the supporting position of the chair frame is increased, and the bearing capacity of the chair frame is improved.

Description

Massage chair and chair frame inclining mechanism thereof

Technical Field

The utility model relates to a chair field especially relates to a massage armchair and chair frame mechanism of inclining thereof.

Background

At present, a basic chair frame of a chair in the market slides on an arc-shaped slide rail through a roller, so that the tilting action of the chair frame is completed; when the chair frame is linked with the leg rest plate, the chair usually adopts a group of link mechanisms to push the leg rest plate, so as to realize the linkage of the chair frame and the leg rest plate.

For example, publication numbers are: CN112587388A patent document discloses a crus linkage chair, which comprises a chair frame, a base, a crus frame, a push rod, an electric push rod and a link mechanism, wherein the crus frame is hinged on the chair frame, the base is provided with an arc-shaped guide rail, and the chair frame is slidably arranged on the arc-shaped guide rail; the connecting rod mechanism comprises a first section and a swinging section, one end of the first section is hinged on the base, the other end of the first section is hinged with one end of the swinging section, the middle part of the swinging section is hinged on the chair frame, the other end of the swinging section is hinged with the push rod, one end of the push rod is hinged on the chair frame and is arranged at intervals with the shank frame, and the other end of the push rod is abutted against the middle part of the shank frame; one end of the electric push rod is hinged on the base, and the other end is hinged on the chair frame. The swing section comprises a middle section and a third section, a first end of the middle section is hinged to one end of the first section, a second end of the middle section is hinged to a first end of the third section, a first roller is arranged at the middle end of the middle section and slides in the arc-shaped guide rail, a second end of the third section is hinged to the push rod, when the electric push rod is retracted, the chair frame slides on the arc-shaped guide rail in the direction of the lower leg frame, the first section swings relative to the base and drives the middle section to rotate relative to the chair frame, the rotation of the middle section drives the third section to push the push rod to rotate relative to the chair frame, and meanwhile, the other end of the push rod pushes the lower leg frame to lift.

In the prior art, the movement of the chair back frame is guided and limited by the arc-shaped slide rail, and meanwhile, the arc-shaped slide rail bears the weight of a user, the chair back frame and other components arranged on the chair back frame, so that the requirement on the connection strength between the chair back frame and the slide rail is high; meanwhile, the arc-shaped track has great difficulty in the processes of design, modeling, assembly, inspection and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of difficult design and manufacture of the shape of the arc-shaped slide rail in the prior art, the invention aims to provide a massage chair and a chair frame inclining mechanism thereof; the left side and the right side of the chair frame are guided by two groups of linear rails, so that the requirements on manufacturing and mounting of the chair are reduced, and the stability of the chair is improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the chair comprises a base, a chair frame and an electric push rod, wherein the chair frame is arranged on the base, the electric push rod is used for driving the chair frame to slide, the chair frame inclining mechanism comprises two groups of sliding components which are symmetrically arranged in the left-right direction, the chair frame is positioned between the two groups of sliding components, the sliding components comprise a first sliding track and a second sliding track, the first sliding track and the second sliding track are fixedly connected with the base, the first sliding track and the second sliding track are arranged at an included angle, and the chair frame is movably connected with the first sliding track and the second sliding track; one end of the electric push rod is hinged with the base, and the other end of the electric push rod is hinged with the chair frame. Like this, through the first track and the second track that slide that are the contained angle and arrange, for inclining of chair frame improves the direction and support, increased the support position of chair frame, improved the bearing capacity of chair frame.

Preferably, the first and second sliding rails are linear. Thus, the linear slide rail is easier to manufacture and install compared with the traditional arc slide rail.

Preferably, the front part of the chair frame slides on the second sliding track, and the rear part of the chair frame slides on the first sliding track. Thus, the moving track of the chair frame is ensured, and the smooth proceeding of the tilting action is ensured.

Preferably, the first sliding track extends forwards and backwards, the second sliding track is located above the first sliding track, and the second sliding track is high in front and low in back.

Preferably, the subassembly that slides still includes the limiting plate, limiting plate and base fixed connection, and the limiting plate forms two recesses through buckling, and two recesses are first track and the second track that slides respectively. Therefore, the integral arrangement and manufacture can ensure the position precision between the first sliding track and the second sliding track, and the integral arrangement and manufacture is suitable for batch manufacture; meanwhile, due to the integrated design, the strength between the tracks is higher.

Preferably, the base includes the strengthening frame that two bilateral symmetry set up, and two limiting plates are located between two strengthening frames, strengthening frame and limiting plate fixed connection. Thus, the supporting strength of the base is increased.

Preferably, the sliding assembly further comprises a first roller and a second roller, the first roller and the second roller are mounted on the chair frame, the first roller is located in the first sliding track and is in sliding fit, and the second roller is located in the second sliding track and is in sliding fit.

Preferably, the second roller is located above the front side of the first roller. Therefore, the chair frame is convenient to drive, and the chair is prevented from being blocked.

A chair comprises the chair frame inclining mechanism.

The technical scheme of the utility model, compared with a set of symmetrical arc-shaped rail supports in the traditional scheme, provides guidance and support for the chair frame, and the scheme supports and guides the chair frame through two first sliding rails which are symmetrically arranged and two second sliding rails which are symmetrically arranged; and the traditional arc-shaped rails are different, and the rails in the scheme are all linear, so that the manufacturing and the installation are convenient.

Drawings

FIG. 1 is a first general structural diagram of a chair;

FIG. 2 is a second overall view of the chair (with the outer covering removed);

FIG. 3 is a schematic view of a connection structure of the support frame and the base;

FIG. 4 is a first schematic view of a connection structure of the support frame, the leg rest and the base;

FIG. 5 is a schematic view of a second connecting structure of the supporting frame, the leg rest and the base;

FIG. 6 is a schematic view of the connection structure of the supporting frame, the leg rest and the base with the single-side limiting plate removed;

fig. 7 is an enlarged view of a portion a of fig. 6.

Reference numerals: 1. a chair frame; 11. a support frame; 12. a rail frame; 13. a first roller; 14. a second roller; 2. a leg rest plate; 21. mounting a plate; 22. a sixth hinge shaft; 3. a base; 31. a reinforcing frame; 41. a limiting plate; 411. a first glide track; 412. a second slip track; 5. an electric push rod; 51. a drive section; 60. a push wheel; 61. a first link; 62. a second link; 63. a third link; 64. a fourth link; 641. a connecting plate; 65. a first hinge shaft; 66. a second hinge shaft; 67. a seventh hinge shaft; 68. a third hinge shaft; 69 fourth articulated shaft.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise direct contact between the first and second features but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

As shown in fig. 1-4, the massage chair comprises a base 3, a chair frame 1 and a leg rest board 2, wherein the chair frame 1 is slidably mounted on the chair frame 1 through a chair frame tilting mechanism, the leg rest board 2 is hinged at the front end of the chair frame 1, and the leg rest board 2 is driven to be lifted through a leg rest board lifting mechanism in the sliding process. The chair frame 1 comprises a support frame 11 and a track frame 12, the track frame 12 is installed on the support frame 11, the support frame 11 is connected with the base 3 in a sliding mode, and the leg placing plate 2 is hinged to the front end of the support frame 11 through a sixth hinge shaft 22. The chair frame inclining mechanism comprises two groups of sliding assemblies which are symmetrically arranged in the left-right direction, the chair frame 1 is positioned between the two groups of sliding assemblies, each sliding assembly comprises a first sliding rail 411, a second sliding rail 412, a first roller 13 and a second roller 14, and the first sliding rail 411 and the second sliding rail 412 are arranged in an included angle; the first sliding rail 411 extends in the front-back direction, the second sliding rail 412 is obliquely arranged, the first sliding rail 411 and the second sliding rail 412 are linear rails, the first roller 13 is rotatably installed on the chair frame 1, the first roller 13 is located in the first sliding rail 411 and is in sliding fit, the second roller 14 is rotatably installed on the chair frame 1, the second roller 14 is located in the second sliding rail 412 and is in sliding fit, when the electric push rod 5 drives the chair frame 1 to move, the chair frame 1 drives the first roller 13 to fixedly move along the first sliding, the chair frame 1 drives the second roller 14 to move along the second sliding rail 412, and the second sliding rail 412 is obliquely arranged to enable the chair frame 1 to rotate around the joint of the first roller 13, so that the front end of the chair frame 1 is tilted, and the rear side of the chair frame 1 falls.

In this embodiment, the electric push rod 5 is located at the lower side of the chair frame 1, the electric push rod 5 includes a driving portion 51, one end of the electric push rod 5 is hinged to the base 3, and the driving portion 51 is hinged to the bottom of the chair frame 1.

In this embodiment, the first sliding rail 411 and the second sliding rail 412 are both linear, the front portion of the chair frame 1 slides on the second sliding rail 412, and the rear portion of the chair frame 1 slides on the first sliding rail 411; the first sliding track 411 extends forwards and backwards, the second sliding track 412 is positioned above the first sliding track, and the second sliding track 412 is high in front and low in back; the second roller 14 is located above the front side of the first roller 13.

In this embodiment, the axis of the first roller 13 and the axis of the second roller 14 do not appear on the same vertical or horizontal cross section. Thus, the chair frame 1 is prevented from being clamped in the initial stage of the tilting movement, and the correct operation of the chair is ensured.

In this embodiment, the sliding assembly includes a limiting plate 41, the limiting plate 41 is fixedly installed on the base 3, the limiting plate 41 is bent to form two grooves, and the two grooves are a first sliding rail 411 and a second sliding rail 412 respectively; the design of this integral type has strengthened the rigidity between the first track 411 and the second track 412 that slides that lie in the same side, improves overall strength. Further, the base 3 includes two reinforcing frames 31 symmetrically arranged in the left-right direction, the two limiting plates 41 are located between the two reinforcing frames 31, and the limiting plates 41 are fixedly connected with the reinforcing frames 31. Thus, the whole rigidity is further enhanced, and the safety and the stability of the chair are improved.

As shown in fig. 5-7, the leg rest lifting mechanism includes two sets of linkage members symmetrically disposed at left and right sides, the linkage members include a first link 61, a second link 62, a third link 63 and a fourth link 64, one end of the first link 61 is hinged to the base 3 through a first hinge shaft 65, the other end of the first link 61 is hinged to one end of the second link 62 through a second hinge shaft 66, the first hinge shaft 65 is located below the second hinge shaft 66, the other end of the second link 62 is hinged to one end of the third link 63 through a third hinge shaft 68, the second link 62 is hinged to one side of the support frame 11 through a seventh hinge shaft 67, the third hinge shaft 68 is located below the second hinge shaft 66, the other end of the third link 63 is hinged to the fourth link 64 through a fourth hinge shaft 69, the third hinge shaft 68 is located under the fourth hinge shaft 69, the top end of the fourth link 64 is hinged to the support frame 11 through a fifth hinge shaft, the fourth link 64 is located at the rear side of the leg rest plate 2.

In the present embodiment, the distance from the seventh hinge shaft 67 to the second hinge shaft 66 is greater than the distance from the seventh hinge shaft 67 to the third hinge shaft 68.

In this embodiment, the leg rest lifting mechanism further includes a connecting plate 641, the connecting plate 641 is located between the two fourth connecting rods 64 that are symmetric about the left and right, and the left and right ends of the connecting plate 641 are respectively fixedly connected to the two fourth connecting rods 64.

In this embodiment, the connecting plate 641 is rotatably installed with a pushing wheel 60, and the pushing wheel 60 abuts against the rear side surface of the leg rest plate 2. Further, the bottom of the connecting plate 641 is fixedly provided with a hanging lug, and the push wheel 60 is rotatably arranged on the hanging lug.

In this embodiment, the mounting plate 21 is fixed on the rear side surface of the leg rest plate 2, the mounting plate 21 includes a guide portion extending downward and two connection portions protruding backward, the connection portions are hinged to the support frame 11 through a sixth hinge shaft 22, and the push wheel 60 abuts against the guide portion; in the process of lifting the leg rest 2, the push wheel 60 gradually moves to the side of the connecting portion along the guide portion.

In an initial state, the bottom end of the first connecting rod 61 is hinged to the base 3 through a first hinge shaft 65, the top end of the first connecting rod 61 is hinged to the top end of the second connecting rod 62 through a second hinge shaft 66, the bottom end of the second connecting rod 62 is hinged to the bottom section of the third connecting rod 63 through a third hinge shaft 68, the second connecting rod 62 is hinged to the support frame 11 through a seventh hinge shaft 67, the distance from the seventh hinge shaft 67 to the second connecting rod 62 is greater than the distance from the seventh hinge shaft 67 to the third connecting rod 63, the top end of the third connecting rod 63 is hinged to the fourth connecting rod 64 through a fourth hinge shaft 69, and the top end of the fourth connecting rod 64 is hinged to the support frame 11; the lifting process of the leg rest 2 is that when the support frame 11 moves forward, the support frame 11 drives the second link 62 to move forward through the seventh hinge shaft 67, because the second link 62 is hinged to one end of the first link 61 and the other end of the first link 61 is hinged to the base 3, the first link 61 and the second link 62 are gradually opened, one end of the second link 62, on which the second hinge shaft 66 is installed, is gradually lowered, one end of the second link 62, on which the third hinge shaft 68 is installed, is tilted, the second link 62 pushes the third link 63 through the third hinge shaft 68, the third link 63 pushes the fourth link 64 through the fourth hinge shaft 69, so that the fourth link 64 rotates around the hinge point of the fourth link 64 and the support frame 11, and the other end of the fourth link 64 pushes the leg rest 2, so that the leg rest 2 tilts upwards around the hinge point of the fourth link 64 and the support frame 11.

In this embodiment, chair frame 1 and leg rest board 2 all cladding have and cover the piece outward, cover the piece outward and be used for avoiding human and all the other subassembly contacts, improve the holistic comfort level of chair.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (9)

1. The utility model provides a chair frame mechanism of inclining, includes base (3), chair frame (1) and electric putter (5), installs on base (3) chair frame (1), and electric putter (5) are used for driving chair frame (1) and slide its characterized in that: the chair frame comprises a base (3), and is characterized by further comprising two groups of sliding assemblies symmetrically arranged in the left-right direction, the chair frame (1) is located between the two groups of sliding assemblies and comprises a first sliding track (411) and a second sliding track (412), the first sliding track (411) and the second sliding track (412) are fixedly connected with the base (3), the first sliding track (411) and the second sliding track (412) are arranged at an included angle, and the chair frame (1) is movably connected with the first sliding track (411) and the second sliding track (412); one end of the electric push rod (5) is hinged with the base (3), and the other end of the electric push rod (5) is hinged with the chair frame (1).

2. The chair frame reclining mechanism of claim 1, wherein: the first sliding track (411) and the second sliding track (412) are linear.

3. The chair frame reclining mechanism of claim 1, wherein: the front part of the chair frame (1) slides on the second sliding track (412), and the rear part of the chair frame (1) slides on the first sliding track (411).

4. A chair frame recliner mechanism as claimed in claim 3 wherein: the first sliding track (411) extends forwards and backwards, the second sliding track (412) is located above the first sliding track, and the second sliding track (412) is high in front and low in back.

5. The chair frame reclining mechanism of claim 1, wherein: the subassembly that slides still includes limiting plate (41), limiting plate (41) and base (3) fixed connection, and limiting plate (41) are through two recesses of bending type formation, and two recesses are first track (411) and the second track (412) that slides respectively.

6. The chair frame reclining mechanism of claim 5, wherein: the base (3) comprises two reinforcing frames (31) which are arranged in bilateral symmetry, the two limiting plates (41) are located between the two reinforcing frames (31), and the reinforcing frames (31) are fixedly connected with the limiting plates (41).

7. The chair frame reclining mechanism of claim 1, wherein: the sliding assembly further comprises a first roller (13) and a second roller (14), the first roller (13) and the second roller (14) are installed on the chair frame (1), the first roller (13) is located in the first sliding rail (411) and is in sliding fit, and the second roller (14) is located in the second sliding rail (412) and is in sliding fit.

8. The chair frame recline mechanism of claim 7, wherein: the second roller (14) is positioned above the front side of the first roller (13).

9. A massage armchair is characterized in that: comprising a chair frame recline mechanism as claimed in any one of claims 1 to 8.

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