CN112386036A

CN112386036A - High leg-lifting massage chair frame

Info

Publication number: CN112386036A
Application number: CN201910758384.6A
Authority: CN
Inventors: 林学金
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2021-02-23

Abstract

The invention relates to a leg-lifting massage chair frame, which comprises a curved conjoined frame, a leg beautifying frame, a bottom frame and an electric push rod, wherein the curved conjoined frame is connected with the leg beautifying frame; the curved connecting frame is arranged on the bottom frame and can move back and forth and change angles under the driving of the electric push rod; the leg beautifying rack is hung at the front end of the curved conjoined rack, and a linkage mechanism is arranged between the leg beautifying rack and the bottom frame; the linkage mechanism comprises a telescopic rod, a driving rod and a traction rod; a telescopic rod is ingeniously utilized to be associated with the curved connected frame and the bottom frame, the requirement for stretching the front swing is met, the leg beautifying frame is supported to be higher, the leg beautifying frame can be laid flat and contracted to avoid space, interference between rod pieces is avoided, and the linkage mechanism is greatly simplified.

Description

High leg-lifting massage chair frame

The technical field is as follows:

the invention belongs to the field of massage equipment, and particularly relates to a leg-lifting massage chair frame, in particular to a leg-lifting linkage structure capable of realizing leg lifting when a leg-beautifying frame is linked with a sitting and leaning part.

Background art:

the massage function of the existing massage chair is diversified, but as the massage chair frame for bearing the massage machine core, the massage chair gradually evolves toward the practicability, if the backrest is laid flat, the massage chair does not occupy the zero space of the rear space, and the leg beautifying frame can be lifted in linkage with the sitting and leaning part to form a zero gravity state, so that the massage chair becomes the current mainstream scheme. However, these two functions are also compatible, and the requirement is achieved under the driving of an electric push rod, some functions must be compromised, for example, on the basis of ensuring a zero space, the lifting height of the leg beautifying frame cannot reach the expectation, and it is difficult to reach the zero gravity state really, which is one of the defects of the existing massage chair frame.

Such as: patent application No. 201611216818.2 discloses a forward zero gravity massage chair frame, comprising an L-shaped conjoined frame, an underframe, two front supporting rods, two rear supporting rods and an electric push rod; the two ends of the front and the rear supporting rods are movably hinged on the L-shaped conjoined frame and the underframe and are driven by the electric push rod to keep a stable state; the middle parts of the two front support rods are fixedly provided with a cross rod, one end of an electric push rod is hinged on the underframe, the other end of the electric push rod is hinged on the middle part of the cross rod, the electric push rod directly drives the front support rods to swing, and the whole L-shaped connected frame is pulled to move back and forth; the leg beautifying frame is driven by a linkage mechanism to lift, namely the upper edge of the back of the leg beautifying frame is hinged at the front end of the L-shaped conjoined frame; the linkage mechanism consists of a linkage rod fixed at the bottom of the L-shaped conjoined frame, a driving rod and a traction rod; the lower end part of the traction rod is hinged on the front edge of the underframe, the other end of the traction rod is hinged with one end of the driving rod, the other end of the driving rod is movably positioned with a supporting wheel, and the supporting wheel always props against the back part of the leg beautifying frame; the end part of the linkage rod is hinged to the middle part of the driving rod, and the linkage rod plays a role in lifting the driving rod. The rod, the driving rod and the traction rod are rigid parts with unchanged lengths, so that the lifting cannot reach an expected or higher angle due to no way of avoiding during folding.

The following steps are repeated: patent application No. 201810060077.6 discloses a massage chair frame device for realizing backrest tilting and leg rest lifting linkage, wherein a backrest frame assembly is hinged with the upper part of a seat frame, the hinged position of the backrest frame assembly and the seat frame is close to the connecting position of the backrest and a seat surface of the massage chair, a telescopic electric push rod is movably connected with the seat frame and the backrest frame assembly, and a U-shaped piece is fixed below the position of the seat surface of the backrest frame assembly; the leg-rest lifting mechanism comprises a leg-rest frame, a first leg-rest connecting rod, a second leg-rest connecting rod and a third leg-rest connecting rod, the upper portion of the leg-rest frame is movably connected with the front portion of the seat surface position of the backrest frame assembly, the upper end of the first leg-rest connecting rod is movably connected with the middle portion or the lower portion of the leg-rest frame, the lower end of the first leg-rest connecting rod is hinged to one end of the second leg-rest connecting rod, the other end of the second leg-rest connecting rod is hinged to one end of the third leg-rest connecting rod, the other end of the third leg-rest connecting rod is hinged to the seat frame, and the middle position of the second leg. Actually more first put the leg connecting rod than above-mentioned patent for the height that the extension top held in the palm, but second put leg connecting rod both ends and all adopt the activity articulated mode, especially lifting to process of standing vertically, stability is relatively poor.

From the two effect diagrams, the leg beautifying frame can only be lifted to a horizontal angle, namely, the two legs are in a horizontal state, and the leg beautifying frame is difficult to tilt and is higher than the heart. How to provide a new linkage driving mechanism is the object of the present invention.

The invention content is as follows:

the invention aims to design a leg lifting massage chair frame which is characterized in that in a leg beautifying frame linkage mechanism, a rod piece hinged with a curved conjoined frame and a bottom frame adopts a telescopic rod so as to meet the requirements of stretching when the leg beautifying frame is lifted and contracting when the leg beautifying frame is lowered, and the leg lifting massage chair frame is driven by high-low position linkage.

The technical scheme of the invention is realized as follows: a massage chair frame for lifting legs comprises a curved conjoined frame, a leg beautifying frame, a bottom frame and an electric push rod; the curved connecting frame is arranged on the bottom frame, and can move forwards and backwards relative to the bottom frame under the driving of the electric push rod; the leg beautifying rack is hung at the front end of the curved connected rack, and a linkage mechanism is arranged between the leg beautifying rack and the bottom frame and can move forwards and lift up along with the curved connected rack; the method is characterized in that: the linkage mechanism comprises a telescopic rod, a driving rod and a traction rod; the end part of the fixed section of the telescopic rod is hinged on the underframe, and the end part of the movable section is hinged with the lower end of the traction rod; the middle part of the movable section of the telescopic rod is hinged on a U-shaped beam at the front end of the curved connecting frame and can swing and extend forwards along with the forward movement of the curved connecting frame; the upper end of the traction rod is hinged to the middle of the driving rod to form a driving rod swinging fulcrum, one end of the driving rod is hinged to the front end of the curved connecting frame, a supporting wheel is arranged at the front tilting position of the other end of the driving rod, the supporting wheel is supported at the back of the leg beautifying frame in a propping mode, and the lower portion of the leg beautifying frame is driven to tilt upwards around a hinged point with the front end of the curved connecting frame.

The curved connecting frame comprises a pair of curved rails and more than two U beams which are connected with the two curved rails, a backward shaft lug is fixed on the U beam at the front end of the curved connecting frame, and the backward shaft lug is hinged on the movable section of the telescopic rod to pull the telescopic rod to swing back and forth and stretch.

The telescopic rod is of a structure in which the inner rod and the outer tube are slidably sleeved, the maximum length of the telescopic rod after being extended is no more than 700mm, and the length of the traction rod is between 150mm and 400 mm.

The curved track in the curved conjoined frame is provided with a conjoined cushion section and a conjoined backrest section, and is shaped into one of an L shape, a J shape or an S shape; a backrest rod is fixed on the backrest section of the curved track, a cushion rod is fixed on the cushion section, and a handrail rod is arranged at the bending position of the cushion section and the backrest section; the curved conjoined frame is hung on the underframe by means of the grab bars at two sides to form movable positioning.

Cross rods for supporting are symmetrically arranged at the high positions of the two sides of the underframe, and a front support rod and a rear support rod are respectively hinged between the cross rods and the grab bars at the two sides of the curved conjoined frame to form a suspension structure of the curved conjoined frame; the quadrilateral mechanism formed by the front and the rear supporting rods, the cross rod and the handrail rod is partially staggered under the driving of the electric push rod, and the curved conjoined frame can move forwards and lift the cushion section and flatten the backrest section.

The height of the cross bar on the bottom frame is not higher than 500mm, the lengths of the front and rear supporting rods are not more than 450mm, and the distance between the front and rear supporting rods and the cross point of the cross bar is not more than 500 mm; the front supporting rod and the rear supporting rod are always in splayed support in the process of changing the front movement and the back movement of the massage chair frame, and the included angle between the front supporting rod and the rear supporting rod and the inner angle of the transverse rod is not more than 90 degrees.

According to the linkage between the leg beautifying frame and the curved conjoined frame, the curved conjoined frame and the bottom frame are linked by skillfully utilizing a telescopic rod, so that the front swing stretching is met, the leg beautifying frame is supported to be higher, can be laid flat and can be contracted to avoid space, the interference between rod pieces is avoided, and the linkage mechanism is greatly simplified; in addition, the curved conjoined frame is hung on the cross bar of the bottom frame in a high position by using the handrail bar, so that the higher position is kept, the lengths of the front supporting rod and the rear supporting rod can be shortened, and the stability of the massage chair is improved.

Description of the drawings:

the invention is further illustrated with reference to the following specific figures:

FIG. 1 is a side view of a massage chair frame for lifting legs

FIG. 2 is a side view of the massage chair frame with legs lifted and half lying

FIG. 3 is a schematic diagram of a side view of a high leg-lifting massage chair frame

FIG. 4 is a schematic view of the high leg-lifting massage chair frame in a disassembled sitting posture

FIG. 5 is a schematic view of the massage chair frame for raising legs and resolving the lying position

Wherein

1-curved conjoined frame 11-curved track 12-U beam 13-backrest rod

14-cushion rod 15-handrail rod 16-backward shaft ear 2-leg beautifying frame

3-underframe 31-cross bar 4-electric push rod 5-linkage mechanism

51-telescopic rod 511-inner rod 512-outer tube 52-driving rod

521-supporting wheel 53-traction rod 6-front supporting rod 7-rear supporting rod

The specific implementation mode is as follows:

referring to fig. 1 to 5, the leg-lifting massage chair frame comprises a curved conjoined frame 1, a leg-beautifying frame 2, an underframe 3, an electric push rod 4 and a linkage mechanism 5; the curved conjoined frame 1 is arranged on the bottom frame 3, and the curved conjoined frame 1 can do forward movement and backward movement transformation actions relative to the bottom frame 3 under the driving of the electric push rod 4; the leg beautifying rack 2 is hung at the front end of the curved connected rack 1, and a linkage mechanism 5 is arranged between the leg beautifying rack and the bottom frame 3 and can move forwards and lift up along with the curved connected rack 1.

The curved conjoined frame 1 comprises a pair of curved tracks 11 and more than two U beams 12 which are used for associating the two curved tracks, namely, the curved tracks 11 are welded into a whole by the more than two U beams; the curved track 11 is formed by cold working of a steel plate, is provided with a seat cushion section and a backrest section which are connected, is in one of an L shape, a J shape or an S shape, and is matched with the back curve of a human body; a backrest rod 13 is fixed on the backrest section of the curved track 11, a cushion rod 14 is fixed on the cushion section, and a handrail rod 15 is arranged at the bending part of the cushion section and the backrest section; and the curved conjoined frame 1 is hung on the underframe 3 by the handrail rods 15 at two sides to form movable positioning. The backrest rods 13, the cushion rods 14 and the grab bars 15 here provide a fixed support for the sponge and the decorative leather surface, i.e. a supporting framework.

The linkage mechanism 5 comprises a telescopic rod 51, a driving rod 52 and a traction rod 53; the telescopic rod 51 adopts a structure that an inner rod 511 and an outer tube 512 are sleeved in a sliding manner; the end part of the fixed section of the telescopic rod 51 is hinged on the underframe 3, the end part of the movable section is hinged with the lower end of the traction rod 53, and the fixed section and the movable section are relative, namely, the fixed section is jointed at one end of the underframe 3; in the illustrated example, the fixed section is an outer tube 512, and the movable section is an inner rod 511, but the same is true. The middle part of the movable section of the telescopic rod 51 is hinged on the U beam 12 at the front end of the curved connected frame and can swing and extend forwards along with the forward movement of the curved connected frame 1; the upper end of the draw bar 53 is hinged at the middle part of the drive rod 52 to form a swing fulcrum of the drive rod 52, one end of the drive rod 52 is hinged at the front end of the curved conjoined frame 1, and the other end is tilted forward to be positioned with a support wheel 521, and the support wheel 521 is supported on the back of the leg beautifying frame 2 to drive the lower part of the leg beautifying frame 2 to tilt upward around a hinged point with the front end of the curved conjoined frame 1. The leg beautifying rack 2 not only moves forwards along with the curved connected rack 1, but also can do lifting and swinging relative to the curved connected rack 1, which is also the function of the linkage mechanism 5. The maximum length of the telescopic rod after being stretched is no more than 700mm, and the length of the traction rod is between 150mm and 400mm, so that the requirement of the normal massage chair leg beautifying frame on the lifting height can be basically met in the range.

Further, a backward shaft lug 16 is fixed on the U-beam 12 at the front end of the curved connecting frame 1, and the backward shaft lug 16 is hinged on the movable section of the telescopic rod 51, namely an inner rod 511 in the figure, so as to pull the telescopic rod 51 to swing back and forth and stretch. Firstly, can dodge out anterior space, secondly the direction is more smooth and easy when tensile.

Furthermore, the high-position symmetry of both sides of the chassis 3 is provided with a cross bar 31 for supporting, and a front support bar 6 and a rear support bar 7 are respectively hinged between the cross bar 31 and the grab bars 15 at both sides of the curved connected frame 1 to form a suspension structure of the curved connected frame 1; the quadrilateral mechanism formed by the front and the rear supporting rods 5 and 6, the cross rod 31 and the handrail rod 15 is partially staggered under the driving of the electric push rod 4, so that the curved conjoined frame 1 can move forwards, raise the cushion section and flatten the action of the backrest section.

The height of the cross bar 31 on the bottom frame is not higher than 500mm, the lengths of the front and rear supporting rods 6 and 7 are not more than 450mm, and the distance between the cross points of the front and rear supporting rods and the cross bar 31 is not more than 500 mm; the front supporting rod 6 and the rear supporting rod 7 are always in splayed support, namely the supporting resultant force center is included, and the splayed support is similar to triangular stable support in the process of changing the forward movement and the backward movement of the massage chair frame, and the included angle between the front supporting rod 6 and the rear supporting rod 31 is not more than 90 degrees.

In summary, the present invention aims to provide a linkage mechanism for driving a leg beautifying rack for lifting legs, and the structural relationship between the curved conjoined rack 1 and the bottom rack 3 is only a preferred scheme, but not limited; in the prior art, any driving scheme of the massage chair frame, especially the driving structure of the single electric push rod, can form a new combination, and these do not exceed the protection scope of the present application.

Claims

1. A massage chair frame for lifting legs comprises a curved conjoined frame, a leg beautifying frame, a bottom frame and an electric push rod; the curved connecting frame is arranged on the bottom frame, and can move forwards and backwards relative to the bottom frame under the driving of the electric push rod; the leg beautifying rack is hung at the front end of the curved connected rack, and a linkage mechanism is arranged between the leg beautifying rack and the bottom frame and can move forwards and lift up along with the curved connected rack; the method is characterized in that: the linkage mechanism comprises a telescopic rod, a driving rod and a traction rod; the end part of the fixed section of the telescopic rod is hinged on the underframe, and the end part of the movable section is hinged with the lower end of the traction rod; the middle part of the movable section of the telescopic rod is hinged on a U-shaped beam at the front end of the curved connecting frame and can swing and extend forwards along with the forward movement of the curved connecting frame; the upper end of the traction rod is hinged to the middle of the driving rod to form a driving rod swinging fulcrum, one end of the driving rod is hinged to the front end of the curved connecting frame, a supporting wheel is arranged at the front tilting position of the other end of the driving rod, the supporting wheel is supported at the back of the leg beautifying frame in a propping mode, and the lower portion of the leg beautifying frame is driven to tilt upwards around a hinged point with the front end of the curved connecting frame.

2. The leg-lifting massage chair frame as claimed in claim 1, wherein: the curved conjoined frame comprises a pair of curved tracks and more than two U beams which are associated with the two curved tracks, a backward shaft lug is fixed on the U beam at the front end of the curved conjoined frame, and the backward shaft lug is hinged on the movable section of the telescopic rod to pull the telescopic rod to swing back and forth and stretch.

3. The leg-lifting massage chair frame as claimed in claim 1, wherein: the telescopic rod is of a structure in which the inner rod and the outer tube are sleeved in a sliding mode, the maximum length of the telescopic rod after being extended does not exceed 700mm, and the length of the traction rod is between 150mm and 400 mm.

4. The leg-raising massage chair frame as claimed in claim 1 or 2, wherein: the curved track in the curved conjoined frame is provided with a conjoined cushion section and a conjoined backrest section, and is shaped into one of an L shape, a J shape or an S shape; a backrest rod is fixed on the backrest section of the curved track, a cushion rod is fixed on the cushion section, and a handrail rod is arranged at the bending position of the cushion section and the backrest section; the curved conjoined frame is hung on the underframe by means of the grab bars at two sides to form movable positioning.

5. The leg-lifting massage chair frame as claimed in claim 4, wherein: cross rods for supporting are symmetrically arranged at the high positions of the two sides of the underframe, and a front support rod and a rear support rod are respectively hinged between the cross rods and the grab bars at the two sides of the curved conjoined frame to form a suspension structure of the curved conjoined frame; the quadrilateral mechanism formed by the front and the rear supporting rods, the cross rod and the handrail rod is partially staggered under the driving of the electric push rod, and the curved conjoined frame can move forwards and lift the cushion section and flatten the backrest section.

6. The leg-lifting massage chair frame as claimed in claim 5, wherein: the height of the cross bar on the bottom frame is not higher than 500mm, the lengths of the front and rear supporting rods are not more than 450mm, and the distance between the front and rear supporting rods and the cross point of the cross bar is not more than 500 mm; the front supporting rod and the rear supporting rod are always in splayed support in the process of changing the front movement and the back movement of the massage chair frame, and the included angle between the front supporting rod and the rear supporting rod and the inner angle of the transverse rod is not more than 90 degrees.