CN2506245Y - Massage chair back with massage arm width adjustment - Google Patents

Abstract

The utility model relates to a massage back of the chair with massage arm width adjusting device, it has massage armchair's transmission massage device's improvement structure, this massage back of the chair is one kind except kneading, beat the function and can adjust the multi-functional massage back of the chair of arm width in addition simultaneously, this massage back of the chair uses several transmission horizontal poles and special design's gear train pin joint, function different in order to control respectively, wherein the adjustment of width is just through forming on the horizontal pole, the action that the back spiral tooth made both sides arm open and receive along the spiral tooth line, thereby realize wide massage, narrow massage, wide beat, the efficiency of narrow beat, thereby make the more perfect of massage armchair's function.

Description

Massage chair back with massage arm width adjustment

technical field

The utility model relates to a massage chair, in particular to a multifunctional massage chair back with a massage arm width adjusting device.

Background technique

Modern people are busy in life, and at the same time lack of exercise, work pressure makes the mind and muscles often tense, causing physical pain and discomfort. It is necessary to use external force to beat and massage to relax the muscles. Therefore, electric massage chairs are very popular.

Most of today's electric massage chairs have the functions of beating and kneading. What's more, the massage arms can move up and down along the back of the chair. However, the massage parts are limited to the linear path of the massage arms. The central vertical belt cannot achieve a comprehensive stretch of the back. At the same time, for larger people, the massage effect is not enough, so it cannot meet the needs of all consumers.

Utility model content

The purpose of this utility model is to provide a massage chair back with a massage arm width adjustment device that can change the width of the massage arm, so as to realize various effects of wide massage, narrow massage, wide beating, and narrow beating.

In order to achieve the above object, the massage chair back of the utility model has a massage arm width adjustment device, which includes: a frame; a vertical moving device, including a motor, a transmission screw and an assembly plate, and the motor and the transmission screw are connected to the massage chair. The bottom of the frame is connected by a transmission belt, the transmission screw is fixed on the assembly plate, and the assembly plate fits on the slide rails on both sides of the frame; a beating and kneading transmission device includes a motor, a transmission belt, a transmission shaft, a beating horizontal shaft, a kneading horizontal shaft and the driven devices on both sides, the motor is fixed below the assembly plate, and connected with the transmission shaft through the lower transmission belt, and the transmission shaft is respectively connected to the pivoted The beating horizontal shaft and the kneading horizontal shaft of the assembly board are connected with driven devices at both ends of the two horizontal shafts; its characteristic is that a width adjustment device is arranged in the frame, which includes a motor, an upper transmission belt, and a transmission shaft , a worm gear set, a width axis and a threaded sleeve on each side, the motor is fixed on the side of the worm gear set, connected with the worm gear set through the upper transmission belt, and connected by the transmission shaft through the worm gear set The pivot is set on the horizontal axis of the width of the assembly plate, and the left and right sides of the horizontal axis are respectively provided with reversed threads, and the reversed threads on both sides of the horizontal axis are provided with threaded sleeves, and the threaded sleeves pass through a The moving piece moves the driven device, so that the width adjustment action and the kneading or beating action are performed simultaneously.

The massage arm width adjustment device on the back of the massage chair of the utility model makes the massage width no longer limited to the central area, and at the same time, the structural design makes it connected with the beating and kneading device, which can realize wide beating, narrow beating, wide kneading, The effect of narrow kneading makes the massage chair more complete and practical.

In order to better understand the purpose, features and advantages of the utility model, preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the three-dimensional structural diagram of the back of the massage chair of the present invention;

Fig. 2 is an enlarged view of the massage transmission device of the massage chair of the present invention;

Fig. 3 is the transmission mechanism diagram of the control horizontal axis of the massage chair of the present invention;

Fig. 4 is a schematic diagram of the action of the lower driven block of the present utility model;

Fig. 5 is a perspective view of the oblique eccentric wheel of the upper driven block of the utility model;

Fig. 6 is a schematic diagram of a kneading action of the present utility model;

Fig. 7 is a schematic diagram of another kneading action of the present invention;

Fig. 8 is a schematic diagram of another kneading action of the present invention;

Fig. 9 is a schematic diagram of another kneading action of the present invention;

Fig. 10 is an enlarged view of the width adjusting device of the present invention.

Detailed ways

The chair back of the massage chair of the present utility model has a frame 1, slide rails 11 are respectively arranged on both sides of the frame 1, and a massage transmission structure which can be divided into three parts is arranged in the frame: the first part It is a vertical moving device; the second part is a beating and kneading transmission device; the third part is a width adjustment device, which is explained as follows according to the overall structure shown in Figure 1.

The vertical moving device of the first part includes: a motor 10 placed under the frame 11, a drive screw 12 and an assembly plate 14 on which all massage components are installed.

The outsides of both sides of the assembly plate 14 are sleeved on the slide rails 11 on both sides of the frame 1 respectively, and a transverse axis plate 15 is provided on the inner sides of the two sides for pivoting the transverse axes; the motor 10 is installed under the frame 1 , a motor shaft 102 passes through the bottom of the motor shaft 102, and a transmission belt 104 is set on the motor shaft 102 to drive the transmission screw 12 to rotate. The transmission mechanism (not shown in the figure) will drive the entire assembly plate 14 together with all massage components to rise or fall along the slide rail 11 .

Please refer to Figure 2 and Figure 3 for the detailed structure of the second part of the beating and kneading transmission device. 28 with slaves on both sides.

And wherein driven device has included and is assembled in beating the lower driven block 27 on the horizontal shaft 26 and the kneading horizontal shaft 28 and an upper driven block 29 that is assembled on the kneading horizontal shaft 28, on the upper driven block 29 A shaft groove 273 is formed on one side of the upper driven block 27, and a linkage shaft 272 is arranged at the opposite position of the lower driven block 27. One side of the block 29 is combined with a massage arm 50, and the massage arm 50 passes through the front of the assembly plate 14, and can lean against the user's back for massage.

When the motor 20 was running, the drive shaft 24 was driven by the transmission of the lower drive belt 22 to rotate. Please refer to FIG. Worm screw 242 and second worm screw 244, described first worm screw 242 and the inner side of second worm screw 244 combine with drive shaft 24 with the one-way bearing (not shown in the figure) of different directions respectively, and first worm screw 242 and beating horizontal The first worm wheel 260 on the shaft 26 meshes, and the second worm 242 meshes with the second worm wheel 280 on the kneading horizontal shaft 28 .

When the drive shaft 24 rotates in one direction, it only drives the first worm 242 to rotate, and the first worm wheel 260 drives the beating horizontal shaft 26 pivotally arranged on the horizontal axis plate 15 to rotate, thereby causing the massage arm 50 to beat the horizontal axis vertically. 26 direction for swing. The interactive relationship between the beat horizontal shaft 26 and the driven devices on both sides mainly relies on the lower driven block 27 which is symmetrically arranged on both sides of the vertical hit horizontal shaft 26 to actuate. As shown in FIG. 4 , the lower driven block 27 A follower hole 274 with a straight part is formed at the lower end, and the follower hole 274 is sleeved on the vertical horizontal shaft 26, and an eccentric wheel 271 is sandwiched between the vertical horizontal shaft 26; the middle section of the lower follower block 27 is Socketed on the kneading horizontal shaft 28; the peripheral edge of the eccentric wheel 271 is attached to the straight part of the driven hole 274. When the vertical horizontal shaft 26 drives the eccentric wheel 271 to rotate, the different outer diameters of the eccentric wheel 271 from Push the lower driven block 27 at the straight edge to swing around the kneading horizontal axis 28, and the lower driven block 27 will link the upper driven block 29 to swing around the kneading horizontal axis 28 through the linkage shaft 272, so A vertical hammering action of the massaging arms 50 can be created.

When the drive shaft 24 rotates in the other direction, it will only drive the second worm 244 to rotate, and the second worm 244 will drive the kneading horizontal shaft 28 pivotally arranged on the horizontal axis plate 15 to rotate, thereby causing the massage arm 50 to rotate . In the center of the upper driven block 29, a circular hole is set on the kneading horizontal shaft 28, and an oblique eccentric wheel 291 is sandwiched between the kneading horizontal shaft 28. The oblique eccentric wheel 291 is shown in Figure 5, and the oblique eccentric wheel 291 is an eccentric structure seen from the front in Figure 5(A), so it can push the upper driven block 29 in the direction perpendicular to the kneading horizontal axis 28 Move; in Fig. 5 (B), described oblique eccentric wheel 291 is an oblique structure from the side, therefore has the function of promoting upper follower block 29 to knead and knead horizontal axis 28 as the center and carry out yaw movement, both effect Adding time is a curved circle movement.

In order to facilitate the understanding of the transmission operation state of the massage arm of the present invention during the kneading action, the following will be explained through the schematic diagrams of the action states in Figures 6, 7, 8 and 9. Drive the oblique eccentric wheel 291 to rotate, and the eccentric wheel 291 drives the upper driven block 29 to make a circular movement in a curve, and then drive the massage arm 50 to make the same curved circular motion. At this time, the linkage shaft 272 of the lower driven block 27 is engaged with the upper slave In the shaft groove 273 of the moving block 29, the upper driven block 29 can only perform a curve-circling motion, but cannot rotate around the kneading horizontal axis 28;

As shown in Figure 6, when the oblique eccentric wheel 291 rotates 90 degrees from an initial position, the upper driven block 29 drives the massage arm 50 to make a displacement, and the massage arm 50 will move from Figure 6 to Figure 7 position; when the oblique eccentric wheel 291 is rotated ninety degrees from Figure 7, the massage arm 50 is rotated to the position in Figure 8 from Figure 7; when the oblique eccentric wheel 291 is rotated ninety degrees from Figure 8 9, the massage arm 50 is rotated to the position in FIG. 9 from FIG. 8; when the oblique eccentric wheel 291 is rotated to 90 degrees from FIG. The initial position, and complete a curve around the movement. In addition, the movement paths of the two massaging arms 50 are symmetrical, so they can be opened or closed at the same time, so there is a kneading action.

Please refer to Fig. 2 again for the width adjusting device of the third part, which includes: a motor 30, an upper transmission belt 32, a transmission shaft 333, a worm gear group formed by a worm wheel 35 and a worm screw 34 (please refer to Fig. 10 ) shown), a width axis 36 and a threaded sleeve 38 sleeved on both sides of the width axis 36. The width transverse axis 36 is also pivotally arranged on the transverse axis plate 15, and its left and right sides are respectively provided with a positive thread 382 and a reverse thread 384. In addition, the matching thread sleeve 38 is sleeved on the thread 382, 384. A toggle piece 380 extending from the side of the threaded sleeve 38 is sandwiched between the upper driven block 29 and the lower driven block 27 (as shown in FIG. 2 ).

With reference to Fig. 10, when the motor 30 rotates, the transmission shaft 33 is driven by the upper transmission belt 32, and when the worm 34 is driven to rotate in one direction, it drives the rotation of the worm wheel 35 on the width horizontal axis 36. 382 and 384 move to both sides and drive the massage arm 50 on the kneading horizontal axis 28 to open through the moving piece 380. When the screw sleeve 38 moves to the extreme points on both sides, the screw sleeve 38 on one side will touch the The shrapnel 42 of the micro switch 40 on one side of the horizontal shaft plate 15 triggers a control signal to make the motor 30 reverse, so the worm 34 will rotate in the other direction.

When the motor 30 reverses to drive the worm 34 to rotate in the other direction, it can be seen in the same way that the screw sleeves 38 move closer to the center along the screw teeth 382, 384 and drive the massage on the horizontal axis 28 with the toggle piece 380. The arms 50 are closed, and a positioning seat 400 is arranged at an appropriate position in the assembly plate 14, and another microswitch 40 is assembled thereon. The micro switch 40 of the motor 30 is reversely rotated again. In this way, the massage arm 50 can be moved laterally to adjust the width through repeated forward and reverse rotation of the motor 30 .

Claims (6)

1. A massage chair back with a massage arm width adjustment device, which comprises: a frame; A vertical moving device, including a motor, a transmission screw and an assembly plate, the motor and the transmission screw are connected at the bottom of the massage chair frame through a transmission belt, the transmission screw is fixed on the assembly plate, and the assembly plate fits on the on the slide rails on both sides of the frame; A hammering and kneading transmission device includes a motor, a lower transmission belt, a transmission shaft, a beating horizontal shaft, a kneading horizontal shaft and driven devices on both sides. The motor is fixed under the assembly plate and passes through the lower transmission belt. Connected with the transmission shaft, the transmission shaft is connected to the beating horizontal shaft and the kneading horizontal shaft pivoted on the assembly plate respectively, and the driven device is connected to the two ends of the two horizontal shafts; It is characterized in that: a width adjustment device is arranged in the frame, which includes a motor, an upper transmission belt, a transmission shaft, a worm gear set, a width axis and a threaded sleeve on each side, and the motor is fixed on the worm gear set The side is connected with the worm gear group through the upper transmission belt, and the transmission shaft connects the width horizontal axis pivoted on the assembly plate through the worm gear group, and the left and right sides of the width horizontal axis are respectively provided with reverse screws There are thread sleeves on the reverse screw teeth on both sides of the horizontal axis of the width, and the screw sleeves move the driven device through a toggle piece, so that the width adjustment action and the kneading or beating action are performed simultaneously. 2. The massage chair back with massage arm width adjustment device as claimed in claim 1, characterized in that, the transmission shaft in the said beating and kneading transmission device is assembled with the first worm and the first worm by two opposite one-way bearings respectively. The second worm, the first worm and the second worm are respectively engaged with the first worm gear on the beating horizontal axis and the second worm gear on the kneading horizontal axis. 3. The massage chair back with a massage arm width adjusting device as claimed in claim 1, wherein said driven device comprises a lower driven block and an upper driven block, and the lower end of said lower driven block forms a There is a driven hole with a straight side part, the driven hole is set on the beating horizontal shaft, and an eccentric wheel is sandwiched between the beating horizontal shaft, the middle section of the lower driven block is sleeved on the kneading horizontal shaft, the lower The upper section of the driven block is connected with the upper driven block by a linkage shaft; one side of the upper driven block is combined with an outwardly extending massage arm, and at the same time, a round hole is set in the center of the kneading horizontal shaft, and is connected with There is an oblique eccentric wheel sandwiched between the kneading horizontal axes. 4. The massage chair back with a massage arm width adjusting device as claimed in claim 1, wherein the worm gear set comprises a worm screw and a worm gear. 5. The massage chair back with massage arm width adjustment device as claimed in claim 4, characterized in that, a micro switch for touching the thread sleeve is arranged on the horizontal axis plate, and at the same time, it is set on a positioning seat of the assembly plate. An opposite micro switch is also provided. 6 . The massage chair back with a massage arm width adjusting device according to claim 1 , wherein a horizontal axis plate is provided on the inner side of the assembly plate for pivotal connection of each horizontal axis. 6 .

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