CN108143615B - A contact type back massager - Google Patents

Abstract

The present invention relates to a kind of back massage equipment, belong to fitness equipment apparatus field, more particularly, to contact back massager.Include main body rack, it include seat on main body rack, front end includes pedal disk, add-in card or electric shock add-in card can be installed on the massage button, it include groove below the add-in card or electric shock add-in card, groove can be covered comprising multiple surface bulges on the upper end of massage button, the add-in card, and the add-in card includes that surface bulge distribution a series of and thereon is inconsistent；It include electric shocking structure on the electric shock add-in card；The electric shocking structure is electrode slice, and the electric shocking structure is connected to electric wire, is connected to power supply by electric wire.Seat and backrest of the present invention are obliquely installed, and handrail is arranged in two sides, and setting headrest in head can make user that this equipment be performed physical exercise and be loosened with a kind of most comfortable posture.

Description

A contact type back massager

technical field

The invention relates to a back massager, which belongs to the field of fitness equipment, in particular to a contact type back massager.

Background technique

At present, people pay more and more attention to the health of the body, and the application of fitness equipment is becoming more and more extensive. With the development of technology, there are more and more functions. Enter a state of rest.

At present, the majority of back massagers are rotary massages, which do not massage according to the distribution of acupuncture points on the back of the human body, and cannot achieve the maximum effect of massage.

At present, the function of fitness equipment is single, and it is impossible to perform massage and exercise at the same time. At the same time, there is no way to perform electric shocks, and the body shapes of different people are inconsistent, so they cannot adapt to the body shapes of various people.

Contents of the invention

Purpose of the invention: In order to provide a contact-type back massager with better effects, see the multiple substantive technical effects in the specific implementation part for the specific purpose.

In order to achieve the above object, the present invention takes the following technical solutions:

A contact type back massager, comprising a main body support 1, on which the main body support 1 includes a seat 3, the seat 3 is installed on the upper side of the middle part of the main body support 1, the front end of the main body support 1 contains a pedal disc 2, and the massage backrest 4 is inclined Set on the rear side of the main body bracket 1, there are respectively symmetrically arranged pedals 5 at both ends of the pedal disc, which can generate rotational power through the pedal 5; the pedal disc can rotate in both directions, and the feet on both sides The pedal disc 2 is dynamically connected to a group of sprockets through a multi-stage transmission structure; the first group of chains 22 is included on the group of sprockets, and the pin shaft 23 is fixed on the described chain; Bearing 24; at the connection position between the massage backrest 4 and the main body support 1, two linear slide rails 25 are respectively arranged at the front and back, and are fixed on the massage backrest 4 by two slide rail supports 26, and two linear slide rails 25 are respectively provided with The slider 27, the slider 27 is installed on the slider base plate 28 respectively, the slider base plate 28 is connected by the bearing guide rail block 29, the bearing guide rail block 29 is embedded with the bearing 24, and the bearing 24 is in the groove of the slider base plate 28 slide;

A support 30 is provided at the middle position of both ends of the slider seat plate 28 on the upper side, and two through shafts 31 are arranged on the support 30. Bearings are arranged on the through shafts 31, and rollers 32 are installed on the bearings, and between the bearings and the support 30 A sleeve 33 is arranged between them, and the sleeve 33 restricts the left and right movement of the roller 32, but the roller 32 can move up and down along the linear slide rail 25 together with the slider seat plate 28;

The massage backrest 4 is made of rubber material and includes a round hole; the massage backrest 4 is provided with a massage button 34, and the bearing and the roller 32 arranged on the through shaft 31 can squeeze the massage button 34 on the massage backrest 4; the massage button 34 The upper end of the massage button 34 is embedded in the round hole on the massage backrest 4, and the lower end of the massage button 34 is embedded in the round hole on the pressing plate 35. The pressing plate 35 has a round hole consistent with the massage backrest 4. The massage button 34 moves up and down between the massage backrest 4 and the pressing plate 35; the upper end of the massage button 34 has rounded corners, the massage button 34 can contact the back of the human body, and the lower end of the massage button 34 is a plane, which is in contact with the roller 32 and rolled. The roller 32 is arranged on the lower side of the pressing plate 35. When the roller 32 moves to the position corresponding to the massage button 34, the roller 32 lifts the massage button 34. When the roller 32 leaves the position corresponding to the massage button 34, the massage button 34 will be and the force of the back of the human body to move downwards, thereby generating the movement of the massage button 34 up and down.

The further technical solution of the present invention is that the structure of the massage button 34 is: the lower end of the massage button 34 includes a threaded portion 50, and the massage button 34 can be detachably installed in the round hole on the massage backrest 4 through the threaded portion 50, so as to Adjust the number and relative position of the massage buttons 34 .

The further technical solution of the present invention is that the multi-stage transmission structure connected by the pedal discs 2 on both sides includes a transmission shaft and a transmission wheel train as follows: in the main body bracket 1 there are a first transmission shaft 6 and a second transmission shaft 7 , the third transmission shaft 8, the fourth transmission shaft 9 and the fifth transmission shaft 10; the first transmission shaft 6, the second transmission shaft 7, the third transmission shaft 8, the fourth transmission shaft 9 and the fifth transmission shaft 10 from the front Arranged in parallel in turn, the first transmission shaft 6, the second transmission shaft 7, the third transmission shaft 8 and the fourth transmission shaft 9 are connected by a synchronous belt and a synchronous pulley, and the fourth transmission shaft 9 and the fifth transmission shaft The transmission shaft 10 is connected by a sprocket and a chain;

Described drive train comprises first belt pulley 11, second belt pulley 12, the 3rd belt pulley 13, the 4th belt pulley 14, the 5th belt pulley 15 and the 6th belt pulley 16, the first toothed belt 17, The second toothed belt 18, the third toothed belt 19, the first group of sprockets 20 and the second group of sprockets 21, the first group of chains 22, the first pulley 11 is fitted on the first transmission shaft 6, the second The second pulley 12 and the third pulley 13 are fitted on the second transmission shaft 7, the fourth pulley 14 and the fifth pulley 15 are fitted on the third transmission shaft 8, and the sixth pulley 16 first set of chains The wheel 20 is fitted on the fourth transmission shaft 9, the second set of sprockets 21 is fitted on the fifth transmission shaft 10, the first pulley 11 and the second pulley 12 are connected through the first toothed belt 17, The third pulley 13 and the fourth pulley 14 are connected by the second toothed belt 18, the fifth pulley 15 and the sixth pulley 16 are connected by the third toothed belt 19, and the first set of sprockets 20 It is connected with the second group of sprockets 21 through the first group of chains 22; the drive train is a reduction gear train.

The further technical solution of the present invention is that the first group of chains 22 has two chains, which are respectively symmetrically arranged on both sides of the rear part of the main body bracket 1, and a pin shaft 23 is arranged at the same position on the outside of the chain, and a pin shaft 23 is arranged at the end of the pin shaft 23. Bearing 24, bearing 24 can rotate freely.

The further technical solution of the present invention is that six rows of multiple round holes are arranged on the massage backrest 4 , three rows on the left and right sides respectively, and massage buttons 34 are arranged inside the massage backrest 4 .

The further technical solution of the present invention is that an additional plate 37 or an additional electric shock plate 41 can be installed on the massage button 34 , and the bottom of the additional plate 37 or electric shock additional plate 41 contains a groove, and the groove can be set on the upper end of the massage button 34 , the additional plate 37 includes a plurality of surface protrusions, the additional plate 37 includes a series of surface protrusions on which the distribution is inconsistent; the electric shock additional plate 41 includes an electric shock structure 39; the The electric shock structure 39 is an electrode piece, and the electric shock structure is connected to a power supply through electric wires.

The further technical solution of the present invention is that the power supply is a storage battery or a power generation structure, and the power input shaft of the power generation structure is connected to any one of the transmission shafts through a coupling 47, and the side of the transmission shaft passes through the left side The bearing 43 and the right side bearing 46 are installed, and the power generation structure is fixed on the main body bracket housing 49 .

The present invention adopting the above technical solution has the following beneficial effects compared with the prior art: the seat and the backrest of the present invention are all inclined, the armrests are arranged on both sides, and the headrest is arranged on the head, so that the user can take the most comfortable posture Use this equipment for exercise and relaxation.

The rotation is generated by stepping on the pedal disc, which is transformed through a series of transmission mechanisms to achieve the effect of back massage.

The back massage contacts are distributed in two rows on both sides of the spine according to the acupoints on the back of the human body. Massaging the acupoints on the back of the human body comprehensively can achieve the maximum effect of back massage.

The pedal disc generates power, which can drive the massage button to massage the back, saving energy. At the same time, the massage intensity can be adjusted according to the massage effect.

Description of drawings

In order to further illustrate the present invention, further describe below in conjunction with accompanying drawing:

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the present invention;

Fig. 3 is a transmission structure diagram of the present invention;

Fig. 4 is a structural diagram of the slide rail of the present invention;

Fig. 5 is a structural diagram of the massage roller of the present invention;

Fig. 6 is a structural diagram of the massage button of the present invention;

Fig. 7 is one of implementation structure of additional plate;

Fig. 8 is the embodiment structure of electric shock additional plate;

Fig. 9 is a structural diagram of the auxiliary power generation part;

Fig. 10 is a further improved figure of the massage button of this patent;

Explanation of reference signs: 1 main body support, 2 pedal disc, 3 seat, 4 massage backrest, 5 pedal, 6 first transmission shaft, 7 second transmission shaft, 8 third transmission shaft, 9 fourth transmission shaft , 10 fifth transmission shaft, 11 first pulley, 12 second pulley, 13 third pulley, 14 fourth pulley, 15 fifth pulley, 16 sixth pulley, 17 first toothed belt, 18 The second toothed belt, 19 The third toothed belt, 20 The first set of sprockets, 21 The second set of sprockets, 22 The first set of chains, 23 Pin shafts, 24 Bearings, 25 Linear slide rails, 26 Slide rail supports Seat, 27 slider, 28 seat plate, 29 guide rail, 30 bracket, 31 through shaft, 32 roller, 33 bushing, 34 massage button, 35 pressure plate; 36. Surface protrusion; 37. Additional plate; 38. Groove ;39. Electric shock structure; 40. Connecting line; 41. Electric shock additional board; 42. Electric shock groove; 43. Left bearing; 44. Pulley one; 45. Pulley two; 46. Right bearing; Shaft device; 48. Power generation structure; 49. Main bracket shell; 50. Threaded part; 51. Battery.

This drawing is a schematic diagram of the main components of the device, and does not represent the external dimensions, connection methods, assembly forms, positional relationships, etc. of the present invention, and some manual valves, pipe fittings, etc. are omitted in the illustration.

Detailed ways

The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

A contact type back massager, comprising a main body support 1, a seat 3 is included on the main body support 1, and a pedal disc 2 is included at the front end, the seat 3 is installed on the upper side of the middle part of the main body support 1, and the pedal disc 2 is arranged on The front end of the main body bracket 1 and the massage backrest 4 are arranged obliquely on the rear side of the main body bracket 1. There are respectively symmetrically arranged pedals 5 at both ends of the pedal discs, which can generate rotational power through the pedals 5; the pedal discs can be reversed. Rotate in two directions, and the pedal discs 2 on both sides are dynamically connected to a group of sprockets through a multi-stage transmission structure, and the group of sprockets includes a first group of chains 22, and pin shafts 23 are fixed on the chains; A rotatable bearing 24 is installed on the bearing pin 23;

At the connection position between the massage backrest 4 and the main body bracket 1, two linear slide rails 25 are respectively arranged at the front and back, and are fixed on the massage backrest 4 through two slide rail supports 26, and sliders 27 are respectively arranged on the two linear slide rails 25 , the sliders 27 are respectively installed on the slider base plate 28, the slider base plate 28 is connected by the bearing guide rail block 29, the bearing guide rail block 29 is embedded with the bearing 24, and the bearing 24 slides in the groove of the bearing guide rail block 29;

A support 30 is provided at the middle position of both ends of the slider seat plate 28 on the upper side, and two through shafts 31 are arranged on the support 30. Bearings are arranged on the through shafts 31, and rollers 32 are installed on the bearings, and between the bearings and the support 30 A sleeve 33 is arranged between them, and the sleeve 33 restricts the left and right movement of the roller 32, but the roller 32 can move up and down along the linear slide rail 25 together with the slider seat plate 28; The bearing and the roller 32 arranged on the top can extrude the massage button 34 on the massage backrest 4 .

The substantial technical effect and the realization process of the technical solution here are as follows: a contact type back massager, which is composed of a main body support 1, a seat 3, a pedal disc 2 and a massage backrest 4, The seat 3 is installed on the upper side of the middle part of the main body bracket 1, the pedal disc 2 is arranged at the front end of the main body bracket 1, the massage backrest 4 is obliquely arranged on the rear side of the main body bracket 1, and there are respectively symmetrically arranged pedals 5 at both ends of the pedal disc. , the rotational power is generated through the foot pedal 5; the pedal disc can rotate in both directions, and the pedal discs 2 on both sides are connected by the first transmission shaft 6, and there is a second transmission in the main body bracket 1 Shaft 7, third transmission shaft 8, fourth transmission shaft 9 and fifth transmission shaft 10, first transmission shaft 6, second transmission shaft 7, third transmission shaft 8, fourth transmission shaft 9 and fifth transmission shaft 10 Arranged in parallel from front to back, the first transmission shaft 6, the second transmission shaft 7, the third transmission shaft 8 and the fourth transmission shaft 9 are connected by a synchronous belt and a synchronous pulley, and the fourth transmission shaft 9 and The fifth transmission shaft 10 is connected through a sprocket and a chain.

As shown in Fig. 2 and Fig. 3, the drive train comprises a first pulley 11, a second pulley 12, a third pulley 13, a fourth pulley 14, a fifth pulley 15 and a sixth pulley 16, and One toothed belt 17, the second toothed belt 18, the third toothed belt 19, the first group of sprockets 20 and the second group of sprockets 21, the first group of chains 22, the first pulley 11 is fitted on the first On the drive shaft 6, the second pulley 12 and the third pulley 13 are fitted on the second drive shaft 7, the fourth pulley 14 and the fifth pulley 15 are fitted on the third drive shaft 8, and the sixth pulley Wheel 16 The first set of sprockets 20 is fitted on the fourth transmission shaft 9, the second set of sprockets is fitted on the fifth transmission shaft 10, and the first pulley 11 and the second pulley 12 pass through the first tooth The belt 17 is connected, the third pulley 13 and the fourth pulley 14 are connected by the second toothed belt 18, the fifth pulley 15 and the sixth pulley 16 are connected by the third toothed belt 19, the second One set of sprockets 20 and the second set of sprockets 21 are connected through the first set of chains 22 . The drive train as a whole is a reduction gear train.

As shown in Figure 3, the first group of chains 22 has two chains, which are respectively symmetrically arranged on both sides of the rear part of the main body bracket 1, and pin shafts 23 are arranged at the same position on the outside of the chains, and bearings are arranged at the ends of the pin shafts 23. 24, bearing 24 can rotate freely.

As shown in Figure 3, the massage backrest 4 is provided with six rows of multiple round holes, three rows on the left and right sides, and the massage button 34 is arranged in the massage backrest 4. The massage button 34 is a small middle large structure at both ends. Into the round hole on the massage backrest 4, the lower end of the massage button 34 is embedded in the round hole on the pressure plate 35, and the pressure plate 35 has a round hole consistent with the massage backrest 4, and the massage button 34 moves up and down between the massage backrest 4 and the pressure plate 35 .

As shown in Figure 3, the upper end of the massage button 34 has a rounded corner that touches the back of the human body, and the lower end is a plane that contacts the roller 32. The roller 32 is arranged on the lower side of the pressure plate 35. When the roller 32 moves to the position corresponding to the massage button 34 When the roller 32 pushes up the massage button 34, when the roller 32 leaves the position corresponding to the massage button 34, the massage button 34 moves downward due to its own gravity and the force of the human body's back, thereby generating the massage button 34 to move up and down. Play a massage role.

As shown in Figure 2, a generator is also provided in the main body bracket 1, the generator is located on one side of the third transmission shaft 8, and one end of the third transmission shaft 8 is connected with the rotating shaft of the engine, and also includes a main control unit, the main control unit The power supply end of the generator is connected to the power transmission end of the generator, and automatically records the number of turns of the third transmission shaft 8. A display screen is arranged on the outer surface of the main body bracket 1, and the main control unit is connected with each sensor and its display screen. The unit records the running status of the equipment. The built-in program can set the weight, rotation speed and exercise time of the human body to meet the needs of different groups of people and the physical fitness of the human body for exercise. After the exercise is completed, the calorie consumption of the human body can be checked.

The present invention is further described according to the following:

In use, the human body sits on the seat 3, the back leans against the massage backrest 4, and the hands are naturally placed on the armrests on both sides. Pedals 5 on both sides with both feet, pedal 5, and make the pedal disc 2 do a circular motion, drive the first transmission shaft 6 through the pedal disc 2, and the first transmission shaft 6 is driven by the first belt The second transmission shaft 7, the second transmission shaft 7 drives the third transmission shaft 8 through the second belt, the third transmission shaft 8 drives the fourth transmission shaft 9 through the third belt, and the fourth transmission shaft 9 drives the first transmission shaft 9 through the first group of chains Five transmission shafts 10, because the number of teeth of the first pulley 11 as power input is smaller than that of the second pulley 12, the number of teeth of the third pulley 13 is smaller than that of the fourth pulley 14, and the fourth pulley 14 is smaller than the fifth pulley. 15 The number of teeth is equal, the number of teeth of the first group of sprockets 20 and the second group of sprockets 21 is equal, the angular velocity of the first pulley 11 is greater than the angular velocity of the first group of sprockets 20 and the second group of sprockets 21, so it is a reduction gear train, In order to achieve the normal massage frequency under the normal pedaling frequency and prevent the massage from being too heavy or too light, in the process of power transmission, the third drive shaft 8 will drive the motor to generate electricity and supply power to the main control unit and its display screen , the main control unit will always feed back the running status of the equipment, record the energy consumed by the human body, the fourth transmission shaft 9 and the fifth transmission shaft 10 rotate synchronously, drive the bearing 24 on the chain, and the bearing 24 drives the bracket 30 and the roller 32 up and down as a whole Move, so that the massage button 34 produces up and down movements, thereby massaging the back of the human body. The power is generated through the pedaling action, and finally realizes the massage of the back muscles and acupuncture points of the human body, achieving the effect of exercising and relaxing at the same time.

The seat and the backrest of the present invention are all inclined, the armrests are arranged on both sides, and the headrest is arranged on the head, so that the user can exercise and relax the equipment in a most comfortable posture.

The rotation is generated by stepping on the pedal disc, which is transformed through a series of transmission mechanisms to achieve the effect of back massage.

The back massage contacts are distributed in two rows on both sides of the spine according to the acupoints on the back of the human body. Massaging the acupoints on the back of the human body comprehensively can achieve the maximum effect of back massage.

The pedal disc generates power, which can drive the massage button to massage the back, saving energy. At the same time, the massage intensity can be adjusted according to the massage effect.

The further technical solution of the present invention is that the massage button 34 is one of the following arbitrary structures: A. The massage button 34 is a large structure with a small middle at both ends, and the upper end of the massage button 34 is embedded in the circular hole on the massage backrest 4, and the massage button The lower end of 34 is embedded in the round hole on the pressure plate 35, and the pressure plate 35 has a round hole consistent with the massage backrest 4, and the massage button 34 moves up and down between the massage backrest 4 and the pressure plate 35; B. The massage backrest 4 is made of rubber , which contains a plurality of holes, the lower end of the massage button 34 contains a threaded portion 50, the massage button 34 can be detachably installed on the massage backrest 4 through the threaded portion 50, so the number and relative position of the massage button 34 can be adjusted to Acupoints suitable for people of different body types.

An additional plate 37 or an electric shock additional plate 41 can be installed on the massage button, and the bottom of the additional plate 37 or electric shock additional plate 41 contains a groove, and the groove can be placed on the upper end of the massage button, and the additional plate 37 contains A plurality of surface protrusions, the additional plate 37 includes a series of surface protrusions on which the distribution is inconsistent; the electric shock additional plate 41 includes an electric shock structure 39; the electric shock structure 39 is an electrode sheet, and the electric shock structure 39 is an electrode sheet. The electric shock structure is connected to the wire, and the power source is connected through the wire.

It should be noted that the multiple solutions provided by this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined without conflict to achieve multiple effects together.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and what described in the above-mentioned embodiments and the description only illustrates the principle of the present invention, and the present invention also has various aspects without departing from the spirit and scope of the present invention. Variations and improvements all fall within the scope of the claimed protection.

Claims (7)

1. It 1. a kind of contact back massager includes main body rack (1), include seat (3) seat (3) peace on main body rack (1) The upside in the middle part of main body rack (1), main body rack (1) front end include pedal disk (2), and messaging backs (4) are inclined at On rear side of main body rack (1), there is a pedal (5) being arranged symmetrically at foot-operated disk both ends respectively, can be generated by foot pedal pedal (5) Rotary power；Foot-operated disk can the rotation of positive and negative both direction, the pedal disk (2) of two sides is connected by power by multilevel transmission structure One group of sprocket wheel；It is characterized in that, including first group of chain (22), fixed pin shaft on the chain on one group of sprocket wheel (23)；The bearing (24) being able to rotate is installed on pin shaft (23)；In messaging backs (4) and main body rack (1) link position, front and back Two line slide rails (25) are respectively arranged with, are fixed on messaging backs (4) by two sliding rail supports (26), two straight lines are sliding It is respectively arranged on rail (25) sliding block (27), sliding block (27) is separately mounted on sliding block seat board (28), and sliding block seat board (28) passes through Bearing guide block (29) connection, bearing guide block (29) are embedded in bearing (24), groove of the bearing (24) in sliding block seat board (28) Interior sliding；

   Sliding block seat board (28) both ends middle position of upside is provided with bracket (30), and two axises are provided on bracket (30) (31), it is provided with bearing on axis (31), roller (32) are installed on bearing, and be provided with casing between bearing and bracket (30) (33), casing (33) limitation roller (32) moves left and right, but roller (32) can be with sliding block seat board (28) together along line slide rail (25) it moves up and down；

   The messaging backs (4) are rubber material, include circular hole；Massage button (34), axis are provided on messaging backs (4) (31) bearing and roller (32) being arranged on can squeeze the massage button (34) on messaging backs (4)；Massage button (34) is both ends Small intermediate big structure, massage button (34) upper end are embedded into the circular hole on messaging backs (4), and massage button (34) lower end is embedded into pressure In circular hole on plate (35), have on pressing plate (35) with messaging backs (4) consistent circular hole, massage button (34) is in messaging backs (4) It is moved up and down with pressing plate (35) centre；There is fillet in described massage button (34) upper end, and massage button (34) can contact human body back, Massage button (34) lower end is plane, which contacts with roller (32), and roller (32) setting works as roller on the downside of pressing plate (35) (32) when being moved to corresponding massage button (34) position, roller (32) jacks up massage button (34), when roller (32) leave it is corresponding by Rub button (34) position when, massage button (34) is since the power that self gravity and human body lean against moves down, to generate massage button (34) move up and down movement.
2. 2. a kind of contact back massager as described in claim 1, which is characterized in that or the knot of the massage button (34) Structure are as follows: massage button (34) lower end includes threaded portion (50), and the massage button (34) can be removable by threaded portion (50) It unloads in the circular hole being mounted on messaging backs (4), to adjust number and the relative position of massage button (34).
3. 3. a kind of contact back massager as described in claim 1, which is characterized in that the pedal disk (2) of two sides connects Multilevel transmission structure include that transmission shaft and train are as follows: have the first transmission shaft (6), second in the main body rack (1) Transmission shaft (7), third transmission shaft (8), the 4th transmission shaft (9) and the 5th transmission shaft (10)；First transmission shaft (6), the second transmission Axis (7), third transmission shaft (8), the 4th transmission shaft (9) and the 5th transmission shaft (10) are successively arranged in parallel from front to back, described First transmission shaft (6), second driving shaft (7), third transmission shaft (8) and the 4th transmission shaft (9) pass through synchronous belt and synchronous pulley It is connected, the 4th transmission shaft (9) is connected with the 5th transmission shaft (10) by sprocket wheel and chain；

   The train includes first pulley (11), the second belt wheel (12), third belt wheel (13), the 4th belt wheel (14), Five belt wheels (15) and the 6th belt wheel (16),

   First toothed belt (17), the second toothed belt (18), third toothed belt (19), first group of sprocket wheel (20) and second group of sprocket wheel (21), first group of chain (22), first pulley (11) are fitted on the first transmission shaft (6), the second belt wheel (12) and third belt wheel (13) it being fitted on second driving shaft (7), the 4th belt wheel (14) and the 5th belt wheel (15) are fitted on third transmission shaft (8), the Six (16) first groups of belt wheel sprocket wheels (20) are fitted on the 4th transmission shaft (9), and second group of sprocket wheel (21) is fitted in the 5th transmission shaft (10) on, it is connected between first pulley (11) and the second belt wheel (12) by the first toothed belt (17), third belt wheel (13) and the It is connected between four belt wheels (14) by the second toothed belt (18), passes through third tooth between the 5th belt wheel (15) and the 6th belt wheel (16) Shape band (19) is connected, and is connected between first group of sprocket wheel (20) and second group of sprocket wheel (21) by first group of chain (22)；The transmission Train is reducing gear train.
4. 4. a kind of contact back massager as claimed in claim 3, which is characterized in that first group of chain (22) has two chains Item, the same position on the outside of the interior rear portion two sides of main body rack (1), chain of setting respectively symmetrically are provided with pin shaft (23), and Pin shaft (23) end is provided with bearing (24), and bearing (24) is free to rotate.
5. 5. a kind of contact back massager as claimed in claim 3, which is characterized in that messaging backs are provided with six on (4) Multiple circular holes are arranged, each three row in left and right, messaging backs (4) are interior to be provided with massage button (34).
6. 6. a kind of contact back massager as claimed in claim 3, which is characterized in that can be installed on the massage button (34) Add-in card (37) perhaps shocks by electricity below add-in card (41) add-in card (37) or electric shock add-in card (41) comprising groove, Groove can cover the upper end in massage button (34), include multiple surface bulges, the add-in card on the add-in card (37) (37) inconsistent comprising surface bulge distribution a series of and thereon；It include electric shocking structure on the electric shock add-in card (41) (39)；The electric shocking structure (39) is electrode slice, and the electric shocking structure is connected to power supply by electric wire.
7. 7. a kind of contact back massager as claimed in claim 6, which is characterized in that the power supply be battery or It is dynamic power structure, the power input shaft of the dynamic power structure is connected to any of transmission shaft by shaft coupling (47) One, which is installed by left side bearing (43) and right side bearing (46), and the dynamic power structure is fixed on On main body rack shell (49).