CN212235260U

CN212235260U - Portable lumbar vertebra massager of cam-type

Info

Publication number: CN212235260U
Application number: CN201820050087.7U
Authority: CN
Inventors: 应开承; 朱雪琼; 朱思品; 赵玉玺; 田柯; 陈雪; 张元民
Original assignee: Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
Current assignee: Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
Priority date: 2018-01-12
Filing date: 2018-01-12
Publication date: 2020-12-29
Anticipated expiration: 2028-01-12

Abstract

The utility model discloses a cam-type portable lumbar vertebra massager. Many massage devices are large in size and are not portable. The smaller size massage device is too simple to function. The utility model comprises a belt winding, a ventilation bag, a frame, a massage mechanism and a driving mechanism. The massage mechanism comprises a pressing claw, a claw driving and reversing plate, an electric push rod, a connecting block, a waist pushing assembly and a rotary pressing assembly. The waist pushing assembly comprises a waist pushing concave block, a waist pushing top block, a waist pushing sliding rod, an eccentric wheel and a vibration motor. The pressing and pinching claw comprises a limiting block, a claw slide rod, a pressing and pinching block, a spring and a roller. The driving mechanism comprises a pressing and pinching cam, a waist pushing cam, a pressing and pinching screw rod, a waist pushing screw rod, a belt wheel, a driving motor, a driving belt, a fixing frame and a push plate. The utility model discloses a plurality of mechanisms that are used for the massage have integrateed in little space, and the size is less and the function is abundant.

Description

Portable lumbar vertebra massager of cam-type

Technical Field

The utility model belongs to the technical field of waist massage, concretely relates to portable lumbar vertebrae massage appearance of cam-type.

Background

In the modern society, most people cannot keep good sleeping, sitting and walking postures, so that the spine of people is easy to fatigue. Spinal fatigue can further cause physical discomfort. In the prior art, the method for relieving the discomfort is massage. The massage method mainly comprises two methods: firstly, the acupuncture points on the spine of the human body are massaged manually so as to play a role in relieving body fatigue or local pain; secondly, the massage is carried out through devices such as a traction type massage bed, a position massager and the like.

The manual massage mode can achieve good fatigue relieving effect, but the manual cost is high, and the masseur is easy to fatigue after continuously massaging. Although high labor cost is saved in mechanical massage, the automation degree of the existing massage device is not high, a user needs to operate the massage device by himself or assist others, and the experience effect is greatly reduced. In addition, many massage devices are large in size and are not portable. The massage device with smaller size has too simple function and can not achieve good massage effect.

Disclosure of Invention

An object of the utility model is to provide a portable lumbar vertebrae massage appearance of cam-type.

The utility model comprises a belt winding, a ventilation bag, a frame, a massage mechanism and a driving mechanism. The machine frame, the massage mechanism and the driving mechanism are all arranged in the ventilation bag. The inner ends of the two waist-winding belts are fixed on the breathable bag. The frame include mounting panel, link and two guide rails. The two guide rails are fixed with the mounting plate through the connecting frame.

The massage mechanism comprises a pressing claw, a claw driving and reversing plate, an electric push rod, a connecting block, a waist pushing assembly and a rotary pressing assembly. The waist pushing assembly comprises a waist pushing concave block, a waist pushing top block, a waist pushing sliding rod, an eccentric wheel and a vibration motor. The working side surface of the waist pushing concave block is in a circular arc shape with two high ends and a low middle part. The working side surface of the waist pushing concave block is provided with a massage block group. The massage block group is composed of a plurality of massage blocks. Two vibrating motors are fixed on the side face of the waist pushing concave block opposite to the working side face. The output shafts of the two vibration motors are eccentrically fixed with the two eccentric wheels respectively. Two ends of the side surface of the waist pushing concave block opposite to the working side surface are respectively fixed with one end of each of the two waist pushing sliding rods. The other ends of the two waist pushing sliding rods are respectively fixed with the inner side surfaces of the two waist pushing top blocks. The two waist pushing slide bars and the two waist pushing square holes arranged on the mounting plate respectively form a sliding pair. The outer side surface of the waist pushing top block is arc-shaped. A placing through groove is formed in the center of the working side face of the waist pushing concave block.

The pressing and pinching claw comprises a limiting block, a claw sliding rod, a pressing and pinching block, a spring and a roller. One end of the paw slide bar is fixed with the limiting block, and the other end of the paw slide bar is supported with a roller. The inner ends of the two pressing and pinching blocks and the limiting block form a revolute pair. The two pinching blocks are arranged in a V shape. The middle parts of the two pressing and pinching blocks are connected with the limiting block through springs. Four fingers are pressed. The four paw slide bars in the paw and the four square holes on the paw driving and reversing plate form sliding pairs respectively. The paw advance and retreat board and the logical groove of stepping down that the mounting panel middle part was seted up constitute the sliding pair. The four pressing and pinching claws are sequentially arranged along the width direction of the mounting plate. Two electric push rods are fixed on the side surface of the mounting plate far away from the waist pushing concave block. The push-out rods of the two electric push rods face the direction away from the mounting plate and are fixed with the connecting block. The two connecting blocks are fixed with the fixed paw driving and reversing plate. The four pressing and pinching claws all penetrate through the placing through grooves on the waist pushing concave blocks.

The rotary pressing component comprises a torsion spring, a massage rod, a rotating shaft, a rocker, a connecting rod and a sliding block. The rotating shaft and the mounting plate form a rotating pair. The rotating shaft is sleeved with a torsion spring. One end of the torsion spring is fixed with the rotating shaft, and the other end of the torsion spring is fixed with the mounting plate. The outer end of the rotating shaft is fixed with one end of the massage rod. The other end of the massage rod is fixed with a rotary pressing lug. The inner end of the rotating shaft is fixed with one end of the rocker. The other end of the rocker is hinged with one end of the connecting rod. The other end of the connecting rod is hinged with the sliding block. The sliding block and the mounting plate form a sliding pair. An extension plate is fixed at the lower edge of the sliding block. The number of the screwing components is two. The four pressing and pinching claws are arranged between the two rotary pressing components.

The driving mechanism comprises a pinch cam, a waist pushing cam, a pinch screw rod, a waist pushing screw rod, a belt wheel, a driving motor, a driving belt, a fixing frame and a push plate. The pressing cam and the waist pushing cam are both moving cams. The kneading screw is supported on one of the guide rails. The waist pushing screw rod is supported on the other guide rail. One end of the waist pushing screw rod is fixed with an output shaft of the driving motor. The driving motor is fixed with the frame. Belt wheels are fixed on the waist pushing screw rod and the pressing screw rod. The two belt wheels are connected through a transmission belt.

The pinching cam is arranged between the two guide rails and forms a sliding pair with the two guide rails. The working profile of the pinching cam is outward convex and consists of an upward inclined line segment, an upward top arc and a downward inclined line segment which are sequentially connected. The pinching cam is fixed with the pinching frame. The pressing nut fixed on the pressing frame and the pressing screw rod form a screw pair. The pressing cam corresponds to the paw slide rod.

The working profile of the waist pushing cam is in an outward convex shape and consists of a first oblique line section, an outward convex arc and a second oblique line section which are sequentially connected. The waist pushing cams are two in total. The two waist pushing cams and the two guide rails respectively form sliding pairs. The two waist pushing cams are fixed with the waist pushing frame. The waist pushing nut fixed on the waist pushing frame and the waist pushing screw rod form a screw pair. The two waist pushing cams correspond to the two waist pushing top blocks respectively. The two waist pushing cams are respectively fixed with the two fixing frames. The two fixing frames are respectively fixed with the two push plates. The two push plates correspond to the two slide blocks respectively.

Furthermore, an upward inclined line segment and a downward inclined line segment on the pinching cam form an included angle of 60 degrees with the axis of the pinching screw rod. The stroke of the follower on the pressing cam is a, and a is 16 mm. The first inclined line segment on the waist pushing cam and the axis of the waist pushing screw rod form an angle of 45 degrees. The second inclined line segment on the waist pushing cam and the axis of the waist pushing screw rod form an angle of 30 degrees. The stroke of the follower on the waist pushing cam is b, and b is 20 mm. The end point of the end of the upward inclined line section of the pinch cam, which is far away from the upper vertex arc, is flush with the end point of the end of the first inclined line section of the waist pushing cam, which is far away from the outer convex arc. The waist pushing slide bar is positioned on a symmetrical surface of the waist pushing concave block parallel to the length direction.

Furthermore, the sliding direction of the sliding pair consisting of the paw sliding rod and the paw advancing and retreating plate and the sliding pair consisting of the paw advancing and retreating plate and the mounting plate is parallel to the thickness direction of the mounting plate. And magnets are fixed on the side surfaces of the four limit blocks, which are close to the paw driving and reversing plate. Iron alloy is fixed on the side surface of the paw driving and reversing plate close to the limiting block.

Furthermore, the outer ends of the two belt winding belts are provided with magic tapes. The magic tape on one of the belt winding belts is a thorn-surface magic tape, and the magic tape on the other belt winding belt is a hair-surface magic tape.

Furthermore, the waist pushing screw rod and the pinching screw rod are reciprocating screw rods. The belt wheel fixed on the kneading screw rod is positioned on the part of the kneading screw rod without screw thread. The belt wheel fixed on the waist pushing screw rod is positioned at the part of the waist pushing screw rod without threads.

Further, the projection of the two push plates on a plane perpendicular to the axis of the guide rail is overlapped with the projection of the extension plates on the two slide blocks on the plane respectively.

The utility model has the advantages that:

1. the utility model discloses a plurality of mechanisms that are used for the massage have been integrated in little space, and the size is less, and the user can be with through twining the waistband the utility model discloses fix on one's body, and then realize lasting massage, the comfort level is higher.

2. The utility model discloses when massaging according to the lug soon, will remove the abdication according to holding between the fingers the hand claw for according to the lug soon can directly be used in the lumbar vertebrae position, massage effect is better.

3. The utility model discloses can accomplish the massage action according to holding between the fingers backbone, vibration backbone and tensile backbone full-automatically, can effectively alleviate user's backbone fatigue.

4. The utility model discloses a four of arranging into a line are according to the mode of holding between the fingers user backbone according to holding between the fingers the claw in proper order, and the process of the backbone is held between the fingers according to the simulation people hand in proper order, more approaches the effect of artifical massage, has improved massage effect.

5. The utility model discloses a reciprocating motion of moving cam can simulate earlier according to pressing between the fingers, the tensile massage action of back and can simulate earlier tensile, the massage action of back according to pressing between the fingers, and the massage process is abundant, has improved user's experience effect.

6. The utility model discloses the slope of the both sides of well waist cam working profile of pushing away is different, makes the utility model discloses can provide different waist for the user and compress tightly speed, massage experience is abundanter.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of the utility model with the lap belt and the ventilation bag removed;

fig. 3 is a perspective view of the massage mechanism of the present invention;

fig. 4 is a front schematic view of the massage mechanism of the present invention;

fig. 5 is a schematic back view of the massage mechanism of the present invention;

fig. 6 is a schematic bottom view of the massage mechanism of the present invention;

FIG. 7 is a perspective view of the middle pinching claw of the present invention;

fig. 8 is a first perspective view of the driving mechanism of the present invention;

fig. 9 is a second perspective view of the driving mechanism of the present invention;

fig. 10 is a schematic side view of the driving mechanism of the present invention;

fig. 11 is a schematic view of a pinch cam according to the present invention;

fig. 12 is a schematic view of the middle lumbar pushing cam of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, the cam type portable lumbar massage apparatus comprises a belt winding belt 1, a button plate 2, an air permeable bag 6, a frame 7, a massage mechanism and a driving mechanism. The frame 7, the massage mechanism and the driving mechanism are all arranged in the breathable bag 6. The frame 7 is fixed with the ventilating bag 6. The breathable bag 6 is provided with a charging interface 17. The battery supplies power for a driving motor in the driving mechanism. The inner ends of the two waist-winding belts 1 are fixed on the breathable bag 6, and the outer ends are provided with magic tapes. The magic tape on one of the belt winding belts 1 is a thorn-surface magic tape, and the magic tape on the other belt winding belt 1 is a hair-surface magic tape. The button plate 2 is mounted on one of the lap belts 1. The button plate 2 is provided with a start-stop button.

As shown in fig. 2, 3 and 8, the housing 7 includes a mounting plate 7-1, a connecting frame 7-2 and two guide rails 7-3. Two parallel guide rails 7-3 are fixed with the mounting plate 7-1 through a connecting frame 7-2.

As shown in fig. 2, 3, 4, 5 and 6, the massage mechanism includes a pressing claw 3, a claw advance-retreat plate 18, an electric push rod 20, a connecting block 21, a lumbar pushing member 4 and a rotary pressing member 5. The waist pushing assembly 4 comprises a waist pushing concave block 4-1, a waist pushing top block 4-2, a waist pushing sliding rod 4-3, an eccentric wheel 4-4 and a vibration motor 4-5. The working side surface of the waist pushing concave block 4-1 is in a circular arc shape with two high ends and a low middle part. The working side surface of the waist pushing concave block 4-1 is provided with a massage block group. The massage block group is composed of a plurality of massage blocks. The massage block is hemispherical, and the material is rubber. Two vibrating motors 4-5 are fixed on the side surface of the waist pushing concave block 4-1 opposite to the working side surface. The output shafts of the two vibration motors 4-5 are eccentrically fixed with the two eccentric wheels 4-4 respectively. The vibration motor 4-5 is matched with the eccentric wheel 4-4 to provide vibration, so that the waist of a user is massaged. Two ends of the side surface of the waist pushing concave block 4-1 opposite to the working side surface are respectively fixed with one end of the two waist pushing sliding rods 4-3. The other ends of the two waist pushing sliding rods 4-3 are respectively fixed with the inner side surfaces of the two waist pushing top blocks 4-2. The two waist pushing sliding rods 4-3 and the two waist pushing square holes arranged on the mounting plate 7-1 respectively form a sliding pair. The two waist pushing sliding rods are both positioned on a symmetrical surface of the waist pushing concave block parallel to the length direction. The outer side surface of the waist pushing top block 4-2 is arc-shaped. When the two waist pushing sliding rods 4-3 slide towards the waist pushing concave block 4-1, the waist pushing concave block 4-1 is pushed to slide, and the waist pushing concave block 4-1 with the arc-shaped working side surface pushes the waist of a user to play a role in stretching the spine. A placing through groove is arranged in the middle of the working side surface of the waist pushing concave block 4-1. The waist-pushing concave block 4-1 is positioned on one side of the mounting plate 7-1 far away from the guide rail 7-3.

As shown in figures 2, 3, 4, 5, 6 and 7, the pressing and pinching claw 3 comprises a limiting block 3-1, a claw slide rod 3-2, a pressing and pinching block 3-3, a spring 3-4 and a roller 3-5. One end of the paw slide bar 3-2 is fixed with the limiting block 3-1, and the other end is supported with a roller 3-5. The inner ends of the two pressing and pinching blocks 3-3 and the limiting block 3-1 form a revolute pair with a common axis parallel to the width direction of the waist pushing concave block 4-1. The two kneading blocks 3-3 are arranged in a V shape. The middle parts of the two pinching blocks 3-3 are connected with the limiting block 3-1 through springs 3-4. Four fingers 3 are pressed. The claw slide bars 3-2 in the four pressing and pinching claws 3 and the four pressing and pinching square holes arranged on the claw driving and reversing plate 18 respectively form sliding pairs. Magnets are fixed on the side surfaces of the four limit blocks close to the paw advancing and retreating plate 18. Iron alloy is fixed on the side surface of the paw forward and backward plate 18 close to the limiting block. The paw advance and retreat plate 18 and the abdication through groove arranged in the middle of the mounting plate 7-1 form a sliding pair. The four pressing and pinching claws 3 are sequentially arranged along the width direction of the mounting plate 7-1. The sliding directions of the sliding pair consisting of the paw sliding rod 3-2 and the paw advancing-retreating plate 18 and the sliding pair consisting of the paw advancing-retreating plate 18 and the mounting plate 7-1 are all parallel to the thickness direction of the mounting plate. Two electric push rods 20 are fixed on the side surface of the mounting plate 7-1 far away from the waist pushing concave block 4-1. The push-out rods of the two electric push rods 20 face to the direction far away from the mounting plate and are fixed with the connecting block 21. Both connecting blocks 21 are fixed to the fixed claw advancing and retreating plate 18. When the paw slide bar 3-2 slides to a position where the pinch blocks 3-3 contact the user's back, the two pinch blocks 3-3 compress the spring 3-4 under the resistance of the user's back. The spring force of the spring 3-4 causes the two press buttons 3-3 to exert pressure on the user's back. The process of rotating and pressing the back of the user by the two pressing blocks 3-3 is similar to the process of pressing the back of the user by two fingers, which can help the user relax the spine. The four pressing and pinching claws 3 all penetrate through the placing through grooves on the waist pushing concave blocks 4-1.

The rotary pressing component 5 comprises a torsion spring, a massage rod 5-1, a rotating shaft 5-2, a rocker 5-3, a connecting rod 5-4 and a sliding block 5-5. The rotating shaft 5-2 and the mounting plate 7-1 form a rotating pair. The rotating shaft 5-2 is sleeved with a torsion spring. One end of the torsion spring is fixed with the rotating shaft 5-2, and the other end of the torsion spring is fixed with the mounting plate 7-1. The outer end of the rotating shaft 5-2 is fixed with one end of the massage rod 5-1. The outer side surface of the other end of the massage rod 5-1 is fixed with a rotary pressing lug. The inner end of the rotating shaft 5-2 is fixed with one end of the rocker 5-3. The other end of the rocker 5-3 is hinged with one end of the connecting rod 5-4. The other end of the connecting rod 5-4 is hinged with the sliding block 5-5. The sliding block 5-5 and the mounting plate 7-1 form a sliding pair which slides along the width direction of the mounting plate 7-1. An extension plate is fixed at the lower edge of the outer end of the slide block 5-5. The number of the screwing components 5 is two. The two rotary pressing components are arranged in a centering way in the length direction of the waist pushing concave block. The four pressing and pinching claws 3 are all arranged between the two rotary pressing components 5. The massage rods 5-1 in the two rotary pressing components 5 are both positioned in the placing through grooves on the waist pushing concave blocks 4-1. When the two massage rods 5-1 rotate to be parallel to the length direction of the mounting plate 7-1, the distance between the two rotary pressing convex blocks is smaller than the distance between the end points of the outer ends of the two pressing blocks; when the rotary pressing lug moves, the hand-pinching claw needs to be abducted to avoid collision with the rotary pressing lug. The lumbar of the user can be touched by rotating the convex block after the holding block 3-3 is abducted, so that the massage experience of the user is improved.

As shown in fig. 2, 8, 9 and 10, the driving mechanism includes a pinch cam 8, a waist pushing cam 9, a pinch screw 11, a waist pushing screw 12, a pulley 14, a driving motor 15, a driving belt 16, a fixed frame 19 and a push plate 22. The pinching cam 8 and the lumbar cam 9 are both moving cams. The waist pushing screw rod 12 and the pinching screw rod 11 are both reciprocating screw rods. Both ends of the kneading screw 11 are supported on one of the guide rails 7-3. Both ends of the waist pushing screw rod 12 are supported on the other guide rail 7-3. One end of the waist-pushing screw rod 12 is fixed with an output shaft of the driving motor. The driving motor is fixed with the frame 7. Belt pulleys 14 are fixed to the waist pushing screw 12 and the pinch screw 11. The two pulleys 14 are connected by a drive belt 16. The pulley 14 fixed to the kneading screw 11 is located at a portion of the kneading screw 11 having no thread. The pulley 14 fixed to the lumbar screw 12 is located at a portion of the lumbar screw 12 having no screw thread.

As shown in fig. 2, 8, 9, 10 and 11, the pinch cam 8 is provided between the two guide rails 7-3 and constitutes a slide pair with the two guide rails 7-3. The working contour of the pinching cam 8 is convex, and consists of an upward inclined line segment 8-1, an upward top arc 8-2 and a downward inclined line segment 8-3 which are sequentially connected. The upward inclined line segment 8-1 and the downward inclined line segment 8-3 are arranged at an included angle of 60 degrees with the axis of the kneading screw rod 11. The follower stroke of the pinch cam 8 is a, and a is 16 mm. The lowest point of the upward inclined line segment 8-1 is flush with the position, closest to the guide rail 7-3, of the upper roller 3-5 of the pinching paw. The pinch cam 8 is fixed to the pinch frame. The pressing nut fixed on the pressing frame and the pressing screw rod 11 form a screw pair.

As shown in fig. 2, 8, 9, 10 and 12, the working profile of the waist-pushing cam 9 is convex, and is composed of a first oblique line segment 9-1, a convex arc 9-2 and a second oblique line segment 9-3 which are connected in sequence. The first diagonal segment 9-1 makes an angle of 45 degrees with the axis of the waist-pushing screw rod 12. The second diagonal segment 9-3 makes an angle of 30 degrees with the axis of the waist-pushing screw rod 12. The follower stroke of the lumbar cam 9 is b, and b is 20 mm. The waist pushing cam 9 has two. The two waist pushing cams 9 are respectively arranged at the outer sides of the two guide rails 7-3 and respectively form sliding pairs with the two guide rails 7-3. The end point of the end of the upward inclined line section of the pinch cam, which is far away from the upper vertex arc, is flush with the end point of the end of the first inclined line section of the waist pushing cam, which is far away from the outer convex arc. The two waist pushing cams 9 are fixed with the waist pushing frame 23. The waist pushing nut fixed on the waist pushing frame 23 and the waist pushing screw rod 12 form a screw pair.

The two waist-pushing cams 9 are fixed with the two fixing frames 19 respectively. The two fixing frames 19 are respectively fixed with the two push plates 22. The projections of the two push plates on a plane vertical to the axis of the guide rail 7-3 are respectively overlapped with the projections of the extension plates on the two slide blocks on the plane.

The gripper sliding rod 3-2 corresponds to the position of the pinching cam 8, and the sliding of the pinching cam 8 drives the gripper sliding rod 3-2 to slide along the axis of the gripper sliding rod. The two waist pushing jacking blocks 4-2 correspond to the two waist pushing cams 9 respectively in position, and the sliding of the two waist pushing cams 9 drives the two waist pushing jacking blocks 4-2 to slide along the axes of the corresponding waist pushing slide rods respectively.

The cam type portable lumbar vertebra massager comprises the following massage steps:

firstly, the user winds the belt winding 1 to the waist, and the waist pushing concave block 4-1 is pressed against the waist of the back of the user, and the push plate 22 is positioned at the upper extreme (i.e. the highest position). The driving motor rotates, and the waist pushing screw rod 12 and the pinching screw rod 11 rotate.

And step two, the pressing and pinching nuts and the waist pushing nut slide in the forward direction, and the pressing and pinching cam 8 sequentially passes through the pressing and pinching claws 3. When the pressing cam passes through the pressing claw, the rollers 3-5 in the pressing claw 3 are contacted with the working profile of the pressing cam 8, so that the pressing claw slides towards the lumbar of the user to press and nip the lumbar of the user. Thereby realizing the effect of sequentially pressing the spine of the user from top to bottom.

The specific process of pressing the spine of the user by the pressing and holding claw is as follows: when the pinch finger slides until the pinch blocks contact the user's back, both pinch blocks compress the spring under the resistance of the user's back. The elastic force of the spring causes the two press blocks to exert pressure on the back of the user. The process that the two pressing blocks rotate and extrude the back of the user is similar to the process that the two fingers press and pinch the back of the user, and the lumbar vertebra can be prevented from loosening by the user.

When the pinching cams pass through the pinching claws, the two waist pushing cams pass through the two waist pushing jacking blocks respectively. The two waist pushing top blocks respectively push the two waist pushing sliding rods to slide, and further push the waist pushing concave block 4-1 to compress the waist of a user, so that the function of stretching the spine is achieved.

Because the pressing and pinching cam is steeper than the waist pushing cam, the sliding speed of the pressing and pinching claw is higher than that of the waist pushing concave block 4-1, so that the massaging actions of the pressing and pinching claw and the waist pushing concave block 4-1 can play a role simultaneously, and the massaging experience of a user is improved.

And step three, when the pressing and pinching cams completely pass through all the pressing and pinching claws and the two waist pushing cams respectively and completely pass through the corresponding waist pushing ejector blocks, the two electric push rods 20 are pushed out, so that the claw driving and reversing plate 18 drives the pressing and pinching claws 3 to slide towards the direction far away from the waist pushing concave block 4-1, and a space is reserved for the massage rod 5-1. The two push plates 22 are respectively contacted with the extension plates of the two slide blocks 5-5 and respectively push the two slide blocks 5-5 to slide towards the mounting plate 7-1. The sliding of the two sliding blocks 5-5 drives the massage rod 5-1 to rotate forwards. So that the two rotary pressing convex blocks on the massage rod 5-1 massage the lumbar of the user.

And step four, when the massage rod 5-1 in the rotary pressing component 5 rotates from the edge of one side of the through groove on the waist pushing concave block 4-1 to the edge of the other side, the pressing nut and the waist pushing nut respectively reach the first limit positions of the threads on the pressing screw rod 11 and the waist pushing screw rod 12. Since the pinch screw 11 and the lumbar screw 12 are both reciprocating screws, the pinch nut and the lumbar nut start to slide in opposite directions. The massage rod 5-1 is reversed and reset under the action of the torsion spring, and the position of the waist vertebra of the user is massaged again in the process of reversal and reset.

And step five, retracting the two electric push rods 20 to reset the paw advancing and retreating plate 18. And the pressing cam sequentially passes through the pressing claws, and the sequence of the pressing cam passing through the pressing claws is opposite to the second step. When the pressing and pinching cam passes through the pressing and pinching claw, the rollers 3-5 in the pressing and pinching claw are contacted with the working profile of the pressing and pinching cam, so that the pressing and pinching claw slides towards the lumbar of the user to press and pinch the lumbar of the user.

And step six, when the pressing and pinching cams completely pass through all the pressing and pinching claws and the two waist pushing cams respectively completely pass through the corresponding waist pushing jacking blocks, the pressing and pinching nuts and the waist pushing nuts respectively reach second limit positions of threads on the pressing and pinching screw rod 11 and the waist pushing screw rod 12, and the step seven is carried out.

And step seven, repeating the step two, the step three, the step four, the step five and the step six.

Claims

1. A cam type portable lumbar vertebra massager comprises a belt winding, an air permeable bag, a frame, a massage mechanism and a driving mechanism; the method is characterized in that: the machine frame, the massage mechanism and the driving mechanism are all arranged in the air permeable bag; the inner ends of the two waist-winding belts are fixed on the breathable bag; the frame comprises a mounting plate, a connecting frame and two guide rails; the two guide rails are fixed with the mounting plate through a connecting frame;

the massage mechanism comprises a pressing claw, a claw driving and reversing plate, an electric push rod, a connecting block, a waist pushing assembly and a rotary pressing assembly; the waist pushing assembly comprises a waist pushing concave block, a waist pushing top block, a waist pushing sliding rod, an eccentric wheel and a vibration motor; the working side surface of the waist pushing concave block is in a circular arc shape with two high ends and a low middle part; the working side surface of the waist pushing concave block is provided with a massage block group; the massage block group consists of a plurality of massage blocks; two vibrating motors are fixed on the side surface of the waist pushing concave block opposite to the working side surface; the output shafts of the two vibration motors are eccentrically fixed with the two eccentric wheels respectively; two ends of the side surface of the waist pushing concave block opposite to the working side surface are respectively fixed with one end of each of the two waist pushing sliding rods; the other ends of the two waist pushing sliding rods are respectively fixed with the inner side surfaces of the two waist pushing top blocks; the two waist pushing sliding rods and the two waist pushing square holes formed in the mounting plate respectively form sliding pairs; the outer side surface of the waist pushing top block is arc-shaped; a placing through groove is formed in the center of the working side surface of the waist pushing concave block;

the pressing and pinching claw comprises a limiting block, a claw slide rod, a pressing and pinching block, a spring and a roller; one end of the paw slide bar is fixed with the limiting block, and the other end of the paw slide bar is supported with a roller; the inner ends of the two pressing blocks and the limiting block form a revolute pair; the two kneading blocks are arranged in a V shape; the middle parts of the two pinching blocks are connected with the limiting block through springs; four pressing and pinching claws are arranged; a paw slide bar in the four pinching paws and four pinching square holes arranged on the paw advancing and retreating plate respectively form a sliding pair; the paw driving and reversing plate and the abdicating through groove arranged in the middle of the mounting plate form a sliding pair; the four pressing and pinching claws are sequentially arranged along the width direction of the mounting plate; two electric push rods are fixed on the side surface of the mounting plate far away from the waist pushing concave block; the push-out rods of the two electric push rods face to the direction far away from the mounting plate and are fixed with the connecting block; the two connecting blocks are both fixed with the fixed paw driving and reversing plate; the four pressing and pinching claws penetrate through the placing through grooves on the waist pushing concave blocks;

the rotary pressing component comprises a torsion spring, a massage rod, a rotating shaft, a rocker, a connecting rod and a sliding block; the rotating shaft and the mounting plate form a rotating pair; the rotating shaft is sleeved with a torsion spring; one end of the torsion spring is fixed with the rotating shaft, and the other end of the torsion spring is fixed with the mounting plate; the outer end of the rotating shaft is fixed with one end of the massage rod; the other end of the massage rod is fixed with a rotary pressing lug; the inner end of the rotating shaft is fixed with one end of the rocker; the other end of the rocker is hinged with one end of the connecting rod; the other end of the connecting rod is hinged with the sliding block; the sliding block and the mounting plate form a sliding pair; an extension plate is fixed at the lower edge of the sliding block; the number of the rotary pressing components is two; the four pressing and pinching claws are arranged between the two rotary pressing components;

the driving mechanism comprises a pressing and pinching cam, a waist pushing cam, a pressing and pinching screw rod, a waist pushing screw rod, a belt wheel, a driving motor, a driving belt, a fixing frame and a push plate; the pressing cam and the waist pushing cam are both moving cams; the pressing screw rod is supported on one of the guide rails; the waist pushing screw rod is supported on the other guide rail; one end of the waist pushing screw rod is fixed with an output shaft of the driving motor; the driving motor is fixed with the frame; belt pulleys are fixed on the waist pushing screw rod and the pressing screw rod; the two belt wheels are connected through a transmission belt;

the pinch cam is arranged between the two guide rails and forms a sliding pair with the two guide rails; the working profile of the pinching cam is in an outward convex shape and consists of an upward inclined line segment, an upward top arc and a downward inclined line segment which are sequentially connected; the pressing cam is fixed with the pressing frame; the pressing nut fixed on the pressing frame and the pressing screw rod form a screw pair; the pressing cam corresponds to the paw sliding rod in position;

the working profile of the waist pushing cam is in an outward convex shape and consists of a first oblique line section, an outward convex arc and a second oblique line section which are sequentially connected; the number of the waist pushing cams is two; the two waist pushing cams and the two guide rails respectively form sliding pairs; the two waist pushing cams are fixed with the waist pushing frame; a waist pushing nut fixed on the waist pushing frame and a waist pushing screw rod form a screw pair; the two waist pushing cams correspond to the two waist pushing top blocks respectively; the two waist pushing cams are respectively fixed with the two fixing frames; the two fixing frames are respectively fixed with the two push plates; the two push plates correspond to the two slide blocks respectively.

2. The portable cam-type lumbar massager of claim 1, wherein: the upward inclined line segment and the downward inclined line segment on the pinching cam are arranged at an included angle of 60 degrees with the axis of the pinching screw rod; the stroke of a follower on the pressing cam is a, and a is 16 mm; a first inclined line section on the waist pushing cam and the axis of the waist pushing screw rod form an angle of 45 degrees; a second inclined line segment on the waist pushing cam forms an angle of 30 degrees with the axis of the waist pushing screw rod; the stroke of a driven piece on the waist pushing cam is b, and b is 20 mm; the end point of the end of the upward inclined line section of the pinch cam, which is far away from the upper top arc, is flush with the end point of the end of the first inclined line section of the waist pushing cam, which is far away from the outer convex arc; the waist pushing slide bar is positioned on a symmetrical surface of the waist pushing concave block parallel to the length direction.

3. The portable cam-type lumbar massager of claim 1, wherein: the sliding directions of the sliding pair consisting of the paw sliding rod and the paw advancing and retreating plate and the sliding pair consisting of the paw advancing and retreating plate and the mounting plate are parallel to the thickness direction of the mounting plate; magnets are fixed on the side surfaces of the four limit blocks, which are close to the paw driving and reversing plate; iron alloy is fixed on the side surface of the paw driving and reversing plate close to the limiting block.

4. The portable cam-type lumbar massager of claim 1, wherein: the outer ends of the two waist winding belts are provided with magic tapes; the magic tape on one of the belt winding belts is a thorn-surface magic tape, and the magic tape on the other belt winding belt is a hair-surface magic tape.

5. The portable cam-type lumbar massager of claim 1, wherein: the waist pushing screw rod and the pressing and pinching screw rod are both reciprocating screw rods; the belt wheel fixed on the pinching screw rod is positioned at the part without the screw thread of the pinching screw rod; the belt wheel fixed on the waist pushing screw rod is positioned at the part of the waist pushing screw rod without threads.

6. The portable cam-type lumbar massager of claim 1, wherein: the projections of the two push plates on a plane vertical to the axis of the guide rail are respectively overlapped with the projections of the extension plates on the two slide blocks on the plane.