CN215532989U - Chair and adjusting mechanism - Google Patents

Abstract

The utility model relates to a chair and an adjusting mechanism, which comprise a chair frame and a leg placing plate, wherein the leg placing plate is connected with the chair frame in a swinging manner, the chair frame is provided with a limiting piece, the limiting piece is in sliding fit with the chair frame, the limiting piece and the chair frame are connected with a second electric push rod, the front end of the limiting piece is hinged with the leg placing plate, the leg placing plate is provided with a telescopic extending piece, and the chair frame is hinged with the extending piece; the linkage of difference tradition chair frame and leg board, this scheme adopts the electronic push rod of second to carry out independent control to leg board, puts simultaneously in this scheme leg board and chair frame between be connected with the extension piece, after leg board swings to certain angle, the support area of this scheme of extension expansion increase.

Description

Chair and adjusting mechanism

Technical Field

The utility model relates to the field of physiotherapy devices, in particular to an adjusting mechanism and a chair.

Background

At present, a commercially available backrest and shank linkage chair is complex in mechanism, high in cost, inconvenient in subsequent disassembly and maintenance and high in cost, and is inconvenient to use by a part of users due to different heights of the users, wherein a frame for supporting the bottom of the chair is too large in size and is completely wrapped by a covering piece, so that the ground where the chair is placed is difficult to clean, the total amount is increased due to the too large size, and the carrying is also difficult;

for example, chinese patent publication No. CN 210204063U, a chair with a seat and a leg rest linked together, which is described herein and shown in the accompanying drawings, comprises a base, on which a rail is provided; the seat and back frame is arranged on the track in a sliding manner through the rollers; the leg rest is arranged on the seat and back frame in a swinging mode; the linkage assembly comprises a seat and back frame connecting plate, a leg rest lifting lever, a push-pull connecting rod and a leg rest connecting plate, the seat and back frame connecting plate is detachably connected with the seat and back frame, and the leg rest connecting plate is detachably connected with the leg rest frame; the driving device is arranged on the base, the seat and the backrest frame are inclined along the track under the driving of the driving device, the linkage assembly drives the leg placing frame to lift, the base is of a frame type, the leg placing frame and the seat and the backrest frame are linked through multiple times of linkage arrangement, and the leg placing frame is lack of flexibility.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide an adjustment mechanism and a chair that have a simple mechanism and high control accuracy and can increase a support area to improve the population of applications.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an adjusting mechanism, includes the chair frame and puts the leg board, put the leg board with the chair frame swing joint, be equipped with the second track that slides that is the linear type on the chair frame, sliding connection has the locating part on the second track that slides, the locating part front end with it is articulated to put the leg board, it is equipped with the telescopic extension on the leg board to put, the chair frame with it is articulated to extend.

Preferably, a second electric push rod is connected between the limiting member and the chair frame.

Preferably, the limiting part comprises a limiting rod, a second roller is arranged on the outer side of the limiting rod in a rotating fit mode, the second roller is in sliding fit with the second sliding track, and the front end of the limiting rod is hinged to the leg placing plate.

Preferably, one side of the second sliding track, which is close to the second sliding track, is provided with a second sliding groove, and the roller is located in the second sliding groove and is in sliding fit with the second sliding groove.

Preferably, the second sliding tracks are two, the limiting rods are fixedly connected through a connecting plate, and the connecting plate is hinged to the second electric push rod.

A chair comprises the adjusting mechanism and further comprises a base, and the chair frame is connected to the base in a sliding mode.

Preferably, a first sliding track is arranged at the bottom end of the chair frame, and the first sliding track is connected to the base in a sliding mode.

According to the technical scheme, the traditional leg placing plate and the chair frame are different in linkage, the second electric push rod is adopted to control the movement of the leg placing plate, and the chair is convenient, flexible and accurate in angle control; meanwhile, the leg placing plate also has an extending action, so that the supporting area of the chair is prolonged, and the comfort level of a user is improved.

Drawings

FIG. 1 is a schematic view of an adjusting mechanism and a chair according to an embodiment of the utility model;

FIG. 2 is a schematic view illustrating the swinging of the leg rest in the embodiment of the present invention;

figure 3 is an extended schematic view of the leg rest in an embodiment of the present invention;

FIG. 4 is an exploded view of an embodiment of the present invention;

FIG. 5 is a first schematic diagram illustrating a partial explosion in an embodiment of the present invention;

FIG. 6 is a second schematic diagram of a partial explosion in an embodiment of the present invention;

fig. 7 is a schematic diagram of a partial explosion in the embodiment of the present invention.

Description of the drawings: 1. a chair frame; 11. a first glide track; 12. a second slip track; 13. supporting legs; 14. a gas lever; 15. a third hinge ear; 2. a tray; 21. a first roller; 3. a first electric push rod; 4. a massage machine core; 5. a leg rest plate; 51. a guide rail; 52. a slide rail; 53. a fourth hinge ear; 6. a second electric push rod; 7. a limiting member; 71. a limiting rod; 72. a connecting plate; 73. a second roller; 74. a seventh hinge ear; 75. a spacing pin; 76. a protective shell; 77. a fifth hinge ear;

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 or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

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 and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered 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 and can, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

A massage chair as shown in fig. 1-7, comprising a base for supporting, a chair frame 1, a massage movement 4 and a leg rest plate 5, wherein the massage movement 4 is arranged on the chair frame 1 and reciprocates, the base is arranged at the lower side of the chair frame 1 and is connected with the chair frame in a sliding way, and the leg rest plate 5 is arranged on the chair frame 1 in a swinging way;

specifically, the massage chair further comprises a connecting piece for adjusting the balance between the chair frame 1 and the base, the connecting piece is a first electric push rod 3, the first electric push rod 3 accurately controls the sliding of the chair frame 1 to ensure the stable balance of the massage chair when in use, and two ends of the first electric push rod 3 are respectively hinged with the chair frame 1 and the base;

the sliding of the chair frame 1 can be accurately controlled through the first electric push rod 3, so that the optimal resting angle can be found for a user;

further, the base comprises supporting legs 13, the supporting legs 13 can be five-star frames or bottom supports, the supporting legs 13 are fixedly connected with the bottom of the air rod 14, and the tray 2 is fixedly arranged at the upper end of the air rod 14;

the traditional metal frame base is distinguished, and the weight is reduced through the combination of the supporting legs 13, the air rods 14 and the tray 2, so that the contact surface of the massage chair and the ground is reduced, dust under the massage chair is convenient to clean, and bacteria breeding is reduced;

specifically, the method comprises the following steps: two first sliding rails 11 are symmetrically and fixedly arranged at the bottom of the chair frame 1, and the tracks of the first sliding rails 11 are arc-shaped; four hanging lugs are arranged on the tray 2 in a ring mode, first rolling shafts are rotatably connected to the hanging lugs and penetrate through the hanging lugs, and first rolling wheels 21 are fixedly arranged on the first rolling shafts; the first roller 21 is arranged on the first sliding track 11 in a sliding manner; a first hinge lug is arranged on the tray 2, a second hinge lug is arranged on the chair frame 1, one end of the first electric push rod 3 is hinged with the first hinge lug, and the other end of the first electric push rod 3 is hinged with the second hinge lug;

in this embodiment, the arc-shaped first sliding track 11 can keep the chair frame 1 balanced during the movement process, and make the movement smoother;

specifically, two second sliding rails 12 are fixedly connected to the chair frame 1 in a bilateral symmetry manner, and the second sliding rails 12 are linear; the second sliding rail 12 is provided with a limiting piece 7 in a sliding manner, and the front end of the limiting piece 7 is hinged with the leg rest plate 5; the leg placing plate 5 is hinged with the second sliding track 12;

the limiting piece 7 moves along the second sliding track 12 to push the leg rest plate 5 to rotate around the hinge joint of the leg rest plate and the second sliding track 12, and the limiting piece 7 reciprocates to realize the swing of the leg rest plate 5;

further, a second electric push rod 6 is arranged between the limiting piece 7 and the chair frame 1, one end of the second electric push rod 6 is hinged with the chair frame 1, and a moving part of the second electric push rod 6 is hinged with the limiting piece 7; the second electric push rod 6 provides power for the movement of the limiting part 7 and accurately controls the sliding of the limiting part 7;

the design of linkage with a traditional backrest adding assembly 1 and a leg placing plate 5 is distinguished, the actions of the chair frame 1 and the leg placing plate 5 can be flexibly controlled through a first electric push rod 3 and a second electric push rod 6, so that people with different heights and body sizes can find more comfortable angles and postures, and the experience degree of a user is increased;

further, a third hinge lug 15 is fixedly arranged on the second sliding track 12, and the third hinge lug 15 is hinged with the leg rest plate 5; the second electric push rod 6 drives the limiting piece 7 to move, and the limiting piece 7 moves so as to push the leg rest plate 5 to rotate around the hinge joint of the leg rest plate and the third hinge lug 15;

further, the limiting member 7 includes a pair of limiting rods 71, a second roller is rotatably connected to the limiting rods 71, a second roller 73 is disposed on the second roller, and the second roller 73 is slidably disposed in the second sliding track 12;

further, a fourth hinge lug 53 is fixedly arranged on the leg placing plate 5, the fourth hinge lug 53 is U-shaped, and two ends of a U-shaped opening of the fourth hinge lug 53 are respectively hinged with the two limiting rods 71;

further, a seventh hinge lug 74 is fixedly arranged on the limit rod 71, and the seventh hinge lug 74 and the fourth hinge lug 53 are hinged together through a limit pin 75; a connecting plate 72 is arranged between the limiting rods 71, a fifth hinge lug 77 is arranged on the connecting plate 72, the moving part of the second electric push rod 6 is hinged with the fifth hinge lug 77, a sixth hinge lug is arranged on the chair frame 1, and the other end of the second electric push rod 6 is hinged on the sixth hinge lug;

as a preferable scheme, in this embodiment, the limiting member further includes two sets of protective cases 76, each set of protective cases 76 includes a front protective case and a rear protective case, the limiting rod 71 is located in the protective cases 76 and is fixedly connected through a fastener, and the seventh hinge lug 74 and the limiting pin 75 are simultaneously covered by the protective cases 76, so as to avoid direct contact between a human body and a hinge and avoid injury;

as a preferable solution of this embodiment, the leg rest plate 5 may be symmetrically provided with retractable extending members, and the extending members replace the leg rest plate 5 to be hinged to the third hinge ears 15, so that after the leg rest plate 5 swings to a maximum angle, the limiting members 7 may drive the leg rest plate 5 to stop swinging and move forward, and finally, the supporting surface of the massage chair is increased, so as to improve the experience and comfort of the user;

as an embodiment of the above preferred solution, the extending member may be a drawer-type sliding rail, the drawer-type sliding rail is composed of a rail 51 and a rail 52 which are slidably connected to each other, the rail 51 is fixedly connected to the leg rest plate 5, and the rail 52 is hinged to the third hinge ear 15;

as another embodiment of the above preferred solution, the extension member may also be a telescopic rod, and both ends of the telescopic rod are respectively hinged to the third hinge lug 5 and the leg rest plate 5;

specifically, the massage movement 4 comprises a driving assembly for driving the massage movement 4 to reciprocate along the chair frame 1, and further comprises a massage movement frame, and massage arms, a first motor and a kneading shaft which are symmetrically arranged on the massage movement frame, wherein the massage arms are rotatably arranged on the kneading shaft, a massage roller is arranged on the top section of each massage arm, and the first motor drives the kneading shaft to rotate so that the two massage arms are far away from or close to each other, thereby realizing massage;

in the preferred embodiment of the massage machine core 4, the massage machine core 4 further includes a lifting mechanism for controlling a distance between the massage roller and the machine core frame, the lifting mechanism can fold or lift the massage roller, so as to adjust a height of the massage machine core 4, when the massage machine core is used as a common seat, the massage roller is folded, so that a comfort level of a user can be improved, and when the massage chair is used as a massage chair, the massage roller is lifted, so that the user can be conveniently massaged; the lifting mechanism can refer to the lifting mode of a massage roller in the publication number CN 111631930A;

in the embodiment, the chair frame 1 and the massage movement 4 are wrapped with external accessories; the external accessories are used for avoiding the direct contact of the human body with the chair frame 1 and the massage machine core 4, thereby avoiding collision and improving the comfort level;

as a preferable scheme of the external accessory, the external accessory can be an air bag, when the massage chair is used as a common chair, the air bag comprises a soft bag for attaching to the back and the hip of a human body, and massage air bags arranged at two sides of the chair frame 1, and the massage air bags can massage the waist of the human body to relieve fatigue;

as another preferred aspect, the external attachment may be elastic cloth, which can increase a supporting feeling and have a good resilience when the massage chair is used as a general seat.

The working process of the scheme is as follows:

when the chair frame 1 inclines and faces upward, the first electric push rod 3 pulls the second hinge lug to drive the chair frame 1 to move, the chair frame 1 drives the first sliding track 11 to move, the first sliding track 11 rubs the first roller 21 to rotate, and the moving track of the chair frame 1 is the arc-shaped track of the first sliding track 11.

When the leg rest plate 5 swings, the second electric push rod 6 drives the limiting piece 7 to move, and the limiting piece 7 moves so as to push the leg rest plate 5 to rotate around the hinge joint of the leg rest plate and the third hinge lug 15;

when the leg placing plate 5 extends, after the leg placing plate 5 swings to the maximum angle, the second electric push rod 6 continues to drive the limiting piece 7 to move, the limiting piece 7 drives the leg placing plate 5 to move, and the leg placing plate 5 drives the extending piece to extend; the extension is elongated as follows: the leg rest board 5 drives the guide rail 51 to move, and the guide rail 51 and the slide rail 52 are unfolded.

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 utility model. 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 (8)

1. The utility model provides an adjustment mechanism, includes chair frame (1) and leg rest board (5), leg rest board (5) with chair frame (1) swing joint, its characterized in that: be equipped with on chair frame (1) and be linear type second track (12) that slides, sliding connection has locating part (7) on second track (12) that slides, locating part (7) front end with put leg board (5) articulated, it extends the piece to be equipped with the telescopic on leg board (5), chair frame (1) with it is articulated to extend the piece.

2. An adjustment mechanism according to claim 1, wherein: a second electric push rod (6) is connected between the limiting piece (7) and the chair frame (1).

3. An adjustment mechanism according to claim 2, wherein: the limiting part (7) comprises a limiting rod (71), a second roller (73) is arranged on the outer side of the limiting rod (71) in a rotating fit mode, the second roller (73) is in sliding fit with the second sliding rail (12), and the front end of the limiting rod (71) is hinged to the leg placing plate (5).

4. An adjustment mechanism according to claim 3, wherein: one side of the second sliding track (12) close to each other is provided with a second sliding groove, and the second roller (73) is positioned in the second sliding groove and is in sliding fit with the second sliding groove.

5. An adjustment mechanism according to claim 3, wherein: the second sliding tracks (12) are two, the limiting rods (71) are fixedly connected through connecting plates (72), and the connecting plates (72) are hinged to the second electric push rods (6).

6. An adjustment mechanism according to claim 1, wherein: the extension piece is a drawer type slide rail.

7. A chair, characterized in that: comprising an adjustment mechanism according to any of the preceding claims 1-5, said chair further comprising a base, said frame (1) being slidably connected to said base.

8. A chair according to claim 7, wherein: be equipped with first track (11) that slides on chair frame (1) bottom, first track (11) sliding connection that slides is in on the base.

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