A massage chair

Abstract

The present invention relates to a massage chair, comprising a bracket and a massage device arranged on the bracket, and also comprising a leather cover wrapped around the bracket and the massage device. The bracket comprises a base, a back frame is arranged above the base, first connecting rods are hinged between the two sides of the front end of the bottom of the back frame and the base, a second connecting rod is fixed between the two first connecting rods, and a telescopic rod is hinged between the second connecting rod and the base; a support frame is hinged on both sides of the rear end of the bottom of the back frame, and guide rails adapted to the support frame are arranged on both sides of the base; when the telescopic rod is telescopically moved, the first connecting rod rotates around the hinge between it and the base, driving the back frame to swing, so that the support frame reciprocates forward and backward along the guide rail. The present invention utilizes the telescopic rod to drive the back frame to move, adapting to different states of the massage chair, and the movement process is stable. Such a linkage mode makes the actual range of motion of the back frame smaller, and there is no need to leave space behind the massage chair for the back frame to lie flat, which effectively reduces the floor space of the massage chair.

Description

Technical Field

[0001] The present invention relates to the technical field of chairs, and in particular to a massage chair. Background Art

[0002] A massage chair is a device that uses mechanical rolling force and mechanical force to perform massage. Tuina massage can dredge the meridians, circulate qi and blood, and maintain the body's yin and yang balance. Therefore, after massage, you can feel your muscles relaxed, your joints flexible, and you can be refreshed and relieve fatigue, which plays an important role in ensuring good health. The massage chair is mainly composed of an internal support frame and an outer leather cover. According to actual needs, mechanical equipment can be placed in an appropriate position between the frame and the leather cover, and the user can be massaged through the softness of the leather cover. Existing massage chairs are generally made in the shape of a chair, allowing users to lie flat on the chair for massage. In order to further facilitate use, some massage chairs also have the function of adjustable position, allowing users to lie flat or sit up, which requires the frame of the massage chair to move back and forth within a certain range to achieve this. However, existing massage chairs usually only move the backrest downward to achieve lying flat. Therefore, when the massage chair is placed, a large space needs to be reserved behind it to achieve this displacement. In addition, the user's weight is unstable, which directly makes the backrest lie backward. The actual stress point is only the hinge between the backrest and the seat cushion, which can easily cause uneven stress on the massage chair and cause damage to its internal frame, thereby affecting its service life. Summary of the invention

[0003] In order to solve the problems existing in the above-mentioned prior art, the present invention aims to provide a massage chair. The present invention uses a telescopic rod to drive the back frame to move, forming a lying or standing state, adapting to different states of the massage chair, and the support during the movement is stable. Such a linkage mode makes the actual range of motion of the back frame smaller, and there is no need to leave space behind the massage chair when the back frame is lying flat, which effectively reduces the floor space of the massage chair.

[0004] A massage chair described in the present invention includes a bracket and a massage device arranged on the bracket, and also includes a leather cover wrapped around the outside of the bracket and the massage device. The bracket includes a base, a back frame is mounted above the base, first connecting rods are hinged between the two sides of the front end of the bottom of the back frame and the base, a second connecting rod is fixed between the two first connecting rods, and a telescopic rod is hinged between the second connecting rod and the base; support frames are hinged on both sides of the rear end of the bottom of the back frame, and guide rails compatible with the support frames are provided on both sides of the base; when the telescopic rod moves in telescopic motion, the first connecting rod rotates around the hinge between it and the base, driving the back frame to swing, so that the support frame reciprocates back and forth along the guide rails.

[0005] In one embodiment, the guide rail is a hollow structure with a slide groove on its outer side, a bottom rod parallel to the guide rail is fixed at the bottom of the support frame, and pulleys are provided at the front and rear ends of the bottom rod; the pulley is located in the guide rail and can slide back and forth along the guide rail, and the central axis of the pulley passes through the slide groove and is connected to the bottom rod.

[0006] In one of the embodiments, a tripod is provided at the front end of the back frame, and the first connecting rod is linked to the tripod via a hinged rod. When the telescopic rod is retracted, the first connecting rod rotates toward the rear end of the base, the back frame stands up, and the tripod rotates downward and is folded; when the telescopic rod is extended, the first connecting rod rotates toward the front end of the base, the back frame tends to lie flat, and the tripod rotates upward and is lifted.

[0007] In one embodiment, the articulated rod includes a first arc-shaped rod and a second arc-shaped rod which are hinged in sequence, the first arc-shaped rod is hinged to the first connecting rod, the second arc-shaped rod is hinged to the tripod, and the second arc-shaped rod is also hinged to the front end of the back frame between the hinge between the second arc-shaped rod and the first arc-shaped rod and the hinge with the tripod.

[0008] In one embodiment, the cross section of the tripod is elliptical, and a protruding limiting portion is provided at the front end of the tripod, and the limiting portion is adapted to fit the second arc-shaped rod.

[0009] In one embodiment, the back frame is arc-shaped, and the projections of the edges of the back frame in a top view are all located within the base.

[0010] In one of the embodiments, a roller is provided at the rear end of the base, and protective frames are provided on both sides of the base corresponding to the outer sides of the back frame.

[0011] In one of the embodiments, a driving mechanism is provided on the base, the driving mechanism is electrically connected to the telescopic rod, and the driving mechanism is used to control the telescopic movement of the telescopic rod.

[0012] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0013] 1. The present invention utilizes a telescopic rod to drive the back frame to move, forming a lying or standing state, adapting to different states of the massage chair, and the support during the movement is stable. Such a linkage mode makes the actual range of motion of the back frame smaller, and there is no need to leave space behind the massage chair for the back frame to lie flat, which effectively reduces the floor space of the massage chair.

[0014] 2. The movement mode of the present invention uses the telescopic rod in the middle as the active element, and a quadrilateral movable mechanism formed by the base, the back frame, the first connecting rod and the support frame. The base is fixed, and the first connecting rod is allowed to rotate forward and backward, and the first connecting rod is restricted from sliding on the base, so that the back frame can be swung to form two positions of lying flat or sitting up, which is in line with the different usage modes of the massage chair. Moreover, this movement mode makes the back frame move in an arc shape, and its movement range is small in the top projection, and the space occupied by the back is not large, so there is no need to worry about the back frame being lowered when lying flat and occupying more space behind the base.

[0015] 3. The support frames are fixedly connected at various positions to form a frame body, the upper end of which is still hinged to the back frame, but the bottom forms a bottom rod and is positioned by two pulleys so that it always remains parallel to the guide rail during movement. This is equivalent to fixing one of the angles of the above-mentioned quadrilateral movable mechanism. When the lengths of the four sides are fixed, the mechanism will maintain sufficient stability.

[0016] 4. The device is also connected to a tripod in front of the back frame for supporting and massaging the user's legs. When the back frame is erected, the tripod is normally folded up and placed upright to adapt to the user's normal sitting posture; when the back frame is lying flat, the tripod is lifted up by the hinged rod, allowing the user to lie flat more comfortably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a massage chair of the present invention;

[0018] Figure 2 is a front view of the bracket of the present invention;

[0019] Figure 3 is a bottom view of the bracket of the present invention;

[0020] Figure 4 is a schematic diagram of the structure of the support of the present invention when it is folded;

[0021] Figure 5 It is a schematic structural diagram of the support of the present invention when it is extended.

[0022] Explanation of the reference numerals: 1- bracket, 11- base, 111- roller, 112- protective frame, 12- back frame, 13- first connecting rod, 14- second connecting rod, 15- telescopic rod, 16- supporting frame, 17- guide rail, 18- tripod, 181- limiting part, 19- hinged rod, 191- first arc rod, 192- second arc rod, 2- leather case. DETAILED DESCRIPTION

[0023] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be said that the internal connection of two components is connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The technical solution of the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 1-Figure 5 As shown, a massage chair of the present invention comprises a bracket 1 and a massage device arranged on the bracket 1, and also comprises a leather cover 2 wrapped around the outside of the bracket 1 and the massage device. The bracket 1 comprises a base 11, a back frame 12 is arranged above the base 11, first connecting rods 13 are hinged between the two sides of the front end of the bottom of the back frame 12 and the base 11, a second connecting rod 14 is fixed between the two first connecting rods 13, and a telescopic rod 15 is hinged between the second connecting rod 14 and the base 11; support frames 16 are hinged on both sides of the rear end of the bottom of the back frame 12, and guide rails 17 adapted to the support frames 16 are arranged on both sides of the base 11; when the telescopic rod 15 telescopes, the first connecting rod 13 rotates around the hinge between it and the base 11, driving the back frame 12 to swing, so that the support frame 16 reciprocates back and forth along the guide rails 17. The present invention utilizes the telescopic rod 15 to drive the back frame 12 to move, forming a lying or standing state, adapting to different states of the massage chair, and the support during the movement is stable. This linkage method makes the actual range of motion of the back frame 12 smaller, and there is no need to leave space behind the massage chair for the back frame 12 to lie flat, which effectively reduces the floor space of the massage chair.

[0026] In real life, the applicant has noticed that massage chairs on the market are similar, mainly because the design of their internal frames and their linkage methods are relatively simple. The frame at the backrest position is usually only hinged to the seat cushion at the bottom, and then the height of the backrest is adjusted through height adjustment devices such as cylinders, so that people sitting on the massage chair can lie flat or sit up. However, due to the large actual length of the backrest, this method requires connecting the cylinder to a higher position on the backrest, or increasing materials and costs to increase the support strength of the frame at the backrest position. In any case, frequent rotation of the backrest will greatly reduce the stability of its connection, thereby affecting its service life. The movement method of the present invention, such as Figure 4 and Figure 5As shown, the telescopic rod 15 in the middle is used as an active element, and the back frame 12 will not be disassembled during actual movement. The base 11, the back frame 12, the first connecting rod 13 and the support frame 16 form a quadrilateral movable mechanism, and the base 11 is fixed, so that the first connecting rod 13 can rotate forward and backward, and the first connecting rod 13 is restricted from sliding on the base 11, so that the back frame 12 can be swung to form two positions of lying flat or sitting up, which is in line with different usage modes of the massage chair. Moreover, this movement mode makes the back frame 12 move in an arc shape, and its range of movement is small in a top-down projection, and the space occupied by the back is not large, so there is no need to worry about the back frame 12 being lowered after lying flat and occupying more space behind the base 11.

[0027] Furthermore, since the quadrilateral movable mechanism is not stable, relying only on the support of the telescopic rod 15 to form a combination similar to two triangles can only increase certain stability. Therefore, the support frame 16 located at the rear end of the quadrilateral movable mechanism can be further set, the guide rail 17 is a hollow structure with a slide groove on its outer side, and a bottom rod parallel to the guide rail 17 is fixed at the bottom of the support frame 16, and pulleys are provided at both the front and rear ends of the bottom rod; the pulley is located in the guide rail 17 and can slide back and forth along the guide rail 17, and the central axis of the pulley passes through the slide groove and is connected to the bottom rod. Figure 2 As shown, the support frame 16 is fixedly connected at each position to form a frame body, and its upper end is still hinged with the back frame 12, but the bottom forms a bottom rod, and is positioned by two pulleys so that it always remains parallel to the guide rail 17 during movement, which is equivalent to fixing one of the angles in the above-mentioned quadrilateral movable mechanism. When the lengths of the four sides are fixed, the mechanism will maintain sufficient stability. When the telescopic rod 15 is extended and retracted, it is equivalent to adjusting the length of one side at the bottom, so that the arc movement of the back frame 12 can be achieved.

[0028] In one embodiment, a footrest 18 is provided at the front end of the back frame 12, and the first connecting rod 13 is linked to the footrest 18 through a hinge rod 19. When the telescopic rod 15 is retracted, the first connecting rod 13 rotates toward the rear end of the base 11, the back frame 12 stands up, and the footrest 18 rotates downward and retracts; when the telescopic rod 15 is extended, the first connecting rod 13 rotates toward the front end of the base 11, the back frame 12 tends to lie flat, and the footrest 18 rotates upward and lifts up. The device is also connected to the footrest 18 in front of the back frame 12 for supporting and massaging the user's legs, and when the back frame 12 stands up, the footrest 18 is normally retracted and placed vertically to adapt to the user's normal sitting posture; when the back frame 12 lies flat, the footrest 18 is lifted by the hinge rod 19, so that the user can lie flat more comfortably.

[0029] Furthermore, the hinge rod 19 includes a first arc rod 191 and a second arc rod 192 which are hinged in sequence. The first arc rod 191 is hinged to the first connecting rod 13, the second arc rod 192 is hinged to the tripod 18, and the second arc rod 192 is hinged to the front end of the back frame 12 between the hinged part with the first arc rod 191 and the hinged part with the tripod 18. Figure 2 As shown, the first arc rod 191 and the second arc rod 192 are bent in the direction shown in the figure. When the first connecting rod 13 rotates, the first arc rod 191 is driven to rotate downward relative to the back frame 12, thereby lifting the other end of the second arc rod 192, and the foot frame 18 at the other end will form a horizontal state adapted to the lying back frame 12. The cross section of the foot frame 18 is elliptical, and a protruding limit portion 181 is provided at the front end of the foot frame 18, and the limit portion 181 is adapted to the second arc rod 192. In order to lift the foot frame 18, the second arc rod 192 will lean against the limit portions 181 formed on both sides of the foot frame 18, thereby providing a supporting force.

[0030] In one embodiment, the back frame 12 is arc-shaped to fit the shape of the human body in a comfortable state, and the projection of the edge of the back frame 12 in the top view direction is located within the base 11, ensuring that the edge of the base 11 wraps the back frame 12, so that the massage chair can be placed according to the size of the base 11 when placed. Just pay attention to the absence of obstacles above the base 11, and there is no need to worry that the displacement of the back frame 12 will collide with other objects. The rear end of the base 11 is provided with a roller 111, so that the base 11 is close to the wall so that it is not easy to scratch the wall, and after lifting the front end of the massage chair, it can rely on the roller 111 to move a short distance. Both sides of the base 11 are provided with protective frames 112 corresponding to the outer side of the back frame 12, which are used to limit and determine the size of the entire bracket 1, and are convenient for wrapping the leather case 2 during production and assembly. In addition, a driving mechanism is provided on the base 11, and the driving mechanism is electrically connected to the telescopic rod 15. The driving mechanism is used to control the telescopic movement of the telescopic rod 15. The driving mechanism can be placed in the space between the base 11 and the rear end of the back frame 12, making full use of the internal space of the massage chair and providing power to the telescopic rod 15. The telescopic rod 15 can use a cylinder or other mechanism, and the driving mechanism can be electrically connected to the mechanical rolling and mechanical extrusion of the massage device.

[0031] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application.

[0032] In the figure, the description of the positional relationship is only for illustrative purposes and should not be understood as a limitation on this patent; obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A massage chair, comprising a support (1) and a massage device arranged on the support (1), and also comprising a leather cover (2) arranged on the outside of the support (1) and the massage device, characterized in that: The bracket (1) comprises a base (11), a back frame (12) is mounted above the base (11), first connecting rods (13) are hingedly connected between the two sides of the bottom front end of the back frame (12) and the base (11), a second connecting rod (14) is fixedly arranged between the two first connecting rods (13), and a telescopic rod (15) is hingedly connected between the second connecting rod (14) and the base (11); support frames (16) are hingedly connected to the two sides of the bottom rear end of the back frame (12), and guide rails (17) adapted to the support frames (16) are arranged on both sides of the base (11); when the telescopic rod (15) telescopes, the first connecting rod (13) rotates around the hinge between the first connecting rod (13) and the base (11), driving the back frame (12) to swing, thereby causing the support frame (16) to reciprocate forward and backward along the guide rails (17); The guide rail (17) is a hollow structure with a slide groove on its outer side, a bottom rod parallel to the guide rail (17) is fixedly provided at the bottom of the support frame (16), and pulleys are provided at both the front and rear ends of the bottom rod; the pulley is located in the guide rail (17) and can slide back and forth along the guide rail (17), and the central axis of the pulley passes through the slide groove and is connected to the bottom rod; A tripod (18) is provided at the front end of the back frame (12), and the first connecting rod (13) is linked to the tripod (18) via a hinge rod (19). When the telescopic rod (15) is retracted, the first connecting rod (13) rotates toward the rear end of the base (11), the back frame (12) stands up, and the tripod (18) rotates downward and is retracted; when the telescopic rod (15) is extended, the first connecting rod (13) rotates toward the front end of the base (11), the back frame (12) tends to lie flat, and the tripod (18) rotates upward and is lifted; The articulated rod (19) comprises a first arc-shaped rod (191) and a second arc-shaped rod (192) which are articulated in sequence, wherein the first arc-shaped rod (191) is articulated to the first connecting rod (13), and the second arc-shaped rod (192) is articulated to the tripod (18), and the second arc-shaped rod (192) is also articulated to the front end of the back frame (12) between the articulation point between the first arc-shaped rod (191) and the articulation point between the second arc-shaped rod (192) and the tripod (18).

2. A massage chair according to claim 1, characterized in that: The cross section of the tripod (18) is elliptical, and a protruding limiting portion (181) is provided at the front end of the tripod (18), wherein the limiting portion (181) is adapted to fit the second arc-shaped rod (192).

3. A massage chair according to claim 1 or 2, characterized in that: The back frame (12) is arc-shaped, and the projections of the edges of the back frame (12) in a top view are all located within the base (11).

4. A massage chair according to claim 3, characterized in that: A roller (111) is provided at the rear end of the base (11), and protective frames (112) are provided on both sides of the base (11) corresponding to the outer sides of the back frame (12).

5. A massage chair according to claim 4, characterized in that: The base (11) is provided with a driving mechanism, the driving mechanism is electrically connected to the telescopic rod (15), and the driving mechanism is used to control the telescopic movement of the telescopic rod (15).

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