CN108338908B

CN108338908B - Arm fracture rehabilitation massager

Info

Publication number: CN108338908B
Application number: CN201810276427.2A
Authority: CN
Inventors: 姜文晓; 兰玲
Original assignee: Qilu Hospital of Shandong University Qingdao
Current assignee: Qilu Hospital of Shandong University Qingdao
Priority date: 2018-03-30
Filing date: 2018-03-30
Publication date: 2020-02-28
Anticipated expiration: 2038-03-30
Also published as: CN108338908A

Abstract

An arm fracture rehabilitation massager effectively solves the problems of uneven arm massage force, low massage efficiency and the like in the existing massage mode; the device comprises a bottom plate, a sliding seat is arranged on the bottom plate, a supporting frame is arranged on the sliding seat, and a first reel is arranged on the supporting frame; the first reel is coaxially provided with a gear, a rack is meshed on the right side of the gear, a connecting rod is fixed at the lower end of the rack, the free ends of the cross rod and the connecting rod are both connected with massage blocks, each massage block comprises a left arc-shaped plate and a right arc-shaped plate, the inner side surfaces of the left arc-shaped plate and the right arc-shaped plate are connected with rubber layers through a plurality of springs, and the inner side surfaces of the two rubber layers are oppositely arranged; the bottom plate is provided with a left limiting plate and a right limiting plate, when the two massage blocks enter between the left limiting plate and the right limiting plate, the distance between the left end and the right end of the rubber layer is reduced, and the two massage blocks enter between the left limiting plate and the right limiting plate to form a massage cavity; the massage device has the advantages of ingenious structure, simple operation and high massage efficiency.

Description

Arm fracture rehabilitation massager

Technical Field

The invention relates to the technical field of medical instruments, in particular to an arm fracture rehabilitation massager.

Background

At present, a lot of massager products are provided on the market, such as a cervical vertebra massager, a lumbar vertebra massager, a hip massager, a leg massager, a foot massager and the like, all the massagers can generate certain effects on physical and mental health of people, but the massagers for arms rarely relate to, even if an instrument for massaging the arms is provided, the arm massage operation can not be conveniently carried out at any time and any place, the practicability is poor, and therefore, the defects exist.

Disclosure of Invention

In view of the above situation, in order to overcome the technical defects in the prior art, the invention aims to provide an arm fracture rehabilitation massager, which effectively solves the problems of uneven arm massage force, low massage efficiency and the like in the prior massage mode.

The technical scheme for solving the problem is that the device comprises a bottom plate, wherein a sliding seat capable of moving back and forth is arranged on the bottom plate, a support frame is fixed on the sliding seat, a first reel capable of rotating left and right is fixed at the upper end of the support frame, and a cross rod positioned on the left side of the first reel is fixed at the upper end of the support frame; the front end of the first reel is coaxially provided with a gear, the right side of the gear is meshed with a vertical rack which can slide up and down on a support frame, the left side of the lower end of the rack is fixedly provided with a connecting rod, the free ends of a cross rod and the connecting rod are both connected with massage blocks, each massage block comprises a left arc-shaped plate and a right arc-shaped plate which are hinged together, a spring is connected between the left arc-shaped plate and the right arc-shaped plate, the inner side surfaces of the left arc-shaped plate and the right arc-shaped plate are connected with rubber layers arranged between the left arc-shaped plate and the right arc-; a bracket horizontally and transversely arranged is fixed at the front end and the rear end of the left side above the bottom plate respectively, a left limiting plate and a right limiting plate which can move left and right are connected between the two brackets, vertical extrusion surfaces are arranged at the adjacent sides of the left limiting plate and the right limiting plate respectively, a certain included angle is formed between the two extrusion surfaces, and the two extrusion surfaces are bilaterally symmetrical about a vertical plane where the left center and the right center of the two brackets are located; the free end of the cross rod is connected with the massage blocks through the telescopic rod, a pressure spring is arranged in the telescopic rod, the pressure spring drives the massage blocks on the telescopic rod to move downwards and the rack drives the massage blocks on the connecting rod to move upwards, when the two massage blocks enter between the left limiting plate and the right limiting plate, the two extrusion surfaces extrude the left arc-shaped plate and the right arc-shaped plate to reduce the distance between the left end and the right end of the rubber layer, and the two massage blocks enter between the left limiting plate and the right limiting plate to form a massage cavity; the winding has the rope on the first reel, and the rope passes horizontal pole and pressure spring and connects in the inside of telescopic link, and first reel drives massage piece rebound on the telescopic link and rack drive the massage piece downstream on the connecting rod through the rope, and when left arc and right arc broke away from two extrusion surfaces, the spring outwards propped open left arc and right arc and made the rubber layer about the distance grow between the both ends.

The invention has the beneficial effects that: the massage device is provided with the massage cavities with adjustable sizes according to the natural shapes of the arms of the human body so as to meet the requirements of different people, and can also massage the arms locally or integrally in the length direction, so that the comfort level of massage is enhanced, and the massage device has good universality, and is ingenious in structure, simple to operate and high in massage efficiency.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a left side view of the invention of fig. 2 with the left and right stop plates removed.

Fig. 5 is a cut-away enlarged view of a in fig. 1 of the present invention.

Fig. 6 is a cut-away enlarged view of B in fig. 2 of the present invention.

Fig. 7 is a cut-away enlarged view of C of fig. 2 of the present invention.

Fig. 8 is a cross-sectional view D-D of fig. 2 of the present invention.

Fig. 9 is an enlarged view of E of fig. 4 of the present invention.

Fig. 10 is a structural view of two massage blocks and a left and right stopper plate according to the present invention.

Fig. 11 is a top view of the left and right arcuate plates of the present invention.

Fig. 12 is an enlarged cut-away view of F of fig. 10 of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 12, the present invention includes a bottom plate 1, a sliding base 2 capable of moving back and forth is arranged on the bottom plate 1, a supporting frame 3 is fixed on the sliding base 2, a first reel 4 capable of rotating left and right is fixed on the upper end of the supporting frame 3, and a cross bar 5 positioned on the left side of the first reel 4 is fixed on the upper end of the supporting frame 3; the front end of the first reel 4 is coaxially provided with a gear 6, the right side of the gear 6 is meshed with a vertical rack 12 capable of sliding up and down on the support frame 3, the left side of the lower end of the rack 12 is fixedly provided with a connecting rod 13, the free ends of the cross rod 5 and the connecting rod 13 are both connected with massage blocks, each massage block comprises a left arc-shaped plate 7 and a right arc-shaped plate 8 which are hinged together, a spring 9 is connected between the left arc-shaped plate 7 and the right arc-shaped plate 8, the inner side surfaces of the left arc-shaped plate 7 and the right arc-shaped plate 8 are connected with a rubber layer 11 arranged between the left arc-shaped plate 7 and the right arc-shaped; a bracket 14 which is horizontally and transversely arranged is respectively fixed at the front end and the rear end of the left side above the bottom plate 1, a left limiting plate 15 and a right limiting plate 16 which can move left and right are connected between the two brackets 14, vertical extrusion surfaces 10 are respectively arranged at the adjacent sides of the left limiting plate 15 and the right limiting plate 16, a certain included angle is formed by the two extrusion surfaces 10, and the two extrusion surfaces are bilaterally symmetrical about a vertical plane where the left center and the right center of the two brackets 14 are located; the free end of the cross rod 5 is connected with the massage blocks through a telescopic rod 17, a pressure spring is arranged in the telescopic rod 17, the pressure spring drives the massage blocks on the telescopic rod 17 to move downwards and the rack 12 drives the massage blocks on the connecting rod 13 to move upwards, when the two massage blocks enter between a left limiting plate 15 and a right limiting plate 16, the two extrusion surfaces 10 extrude the left arc-shaped plate 7 and the right arc-shaped plate 8 to reduce the distance between the left end and the right end of the rubber layer 11, and the two massage blocks enter between the left limiting plate 15 and the right limiting plate 16 to form a massage cavity; the winding has the rope on first reel 4, and the rope passes horizontal pole 5 and the inside at telescopic link 17 is connected to the pressure spring, and first reel 4 drives the massage piece rebound on telescopic link 17 and rack 12 drives the massage piece rebound on the connecting rod 13 through the rope, and when left arc 7 and right arc 8 break away from two squeeze face 10, spring 9 outwards struts the distance grow between the both ends about making rubber layer 11 with left arc 7 and right arc 8.

In order to enable the sliding seat 2 to move back and forth on the bottom plate 1, a driving motor 19 capable of rotating forward and backward is fixed on the upper surface of the bottom plate 1, the driving motor 19 is connected with a lead screw 20 in the front and back direction through a speed reducer, the lead screw 20 is fixed on the bottom plate 1 through a bearing seat 21 at the front end and the back end of the lead screw 20, the lead screw 20 is in threaded connection with the sliding seat 2, and the driving motor 19 drives the lead screw 20 to rotate, so that the sliding seat 2 moves back and forth on the.

In order to improve the efficiency when two massage pieces reciprocate, the rear of first reel 4 drive through inverter motor 39 that can just reverse, the speed that twine rope and rack 12 on first reel 4 before driving two massage pieces respectively and getting into left limiting plate 15 and right limiting plate 16 through connecting rod 13 is greater than its speed that gets into left limiting plate 15 and right limiting plate 16 in-process, has reduced the useless work of doing when two massage pieces up-and-down motion.

In order to ensure the stability of the up-and-down motion of the massage blocks above the connecting rod 13, the front end of the first reel 4 is coaxially provided with a second reel 40 positioned behind the gear 6, the second reel 40 penetrates through the middle part of the supporting frame 3 connected with the connecting rod 13 through a rope, the winding direction of the rope on the second reel 40 is opposite to that of the rope on the first reel 4, the lifting speed and distance of the rope on the second reel 40 and the lifting speed and distance of the rack 12 are consistent, and when the variable frequency motor 39 rotates, the rope on the second reel 40 and the rack 12 drive the connecting rod 13 together to enable the massage blocks above the connecting rod 13 to move up and down; the frequency conversion motor 39 rotates to make the two massage blocks move relatively.

Left side arc

7 and 8 medial surfaces of right arc be equipped with a plurality of vibrating device, every vibrating device is including fixing the type of falling T guide arm 23 on

left side arc

7 or 8 medial surfaces of right arc, sliding connection has massage post 24 on the guide arm 23, the big head end of guide arm 23 is located the inboard of massage post 24, massage post 24 lower extreme pierces through rubber layer 11 and is equipped with sphere 26, the spring has been cup jointed on the guide arm 23, the spring upper end contacts with the medial surface of left arc 7 or right arc 8, the lower extreme of spring and the up end contact of massage post 24, massage post 24 internally mounted has small-size polarization motor 27, polarization motor 27's vibration drives massage post 24 and slides on guide arm 23 and compression spring makes sphere 26 have the effect of vibration.

Spring 9 also can adopt pressure spring or extension spring, the pressure spring can be installed and be located left arc 7 and right arc 8 between left arc 7 and right arc 8's medial surface, the extension spring can be installed and be located the position between left arc 7 and right arc 8 in the top of left arc 7 and right arc 8, when two massage pieces get into between left limiting plate 15 and the right limiting plate 16, two extrusive surfaces 10 extrude left arc 7 and right arc 8, make left arc 7 and right arc 8 compress the pressure spring or tensile and revolve around its articulated department internal rotation around its, when two massage pieces break away from two extrusive surfaces 10, make left arc 7 and right arc 8 revolve around its articulated department external rotation under the extension of pressure spring or the pulling force of extension spring.

In order to make the massage piece also can get into between two squeeze face 10 that have the contained angle along with the back-and-forth movement of slide 2, the outside of left side arc 7 and right arc 8 be equipped with arc inclined plane 25 respectively, two arc inclined planes 25 form the opening direction and the size of certain contained angle and contained angle unanimous with the opening direction and the size of the contained angle that two squeeze face 10 formed respectively, when the pressure spring made the massage piece downstream on the telescopic link 17 and rack 12 made the massage piece upward movement on the connecting rod 13, two squeeze face 10 extrusion left arc 7 and right arc 8, make two massage pieces can be smooth get into between left limiting plate 15 and the right limiting plate 16.

The lower end of the right limit plate 16 is provided with a travel switch 28, when the rack 12 drives the massage blocks on the connecting rod 13 to move upwards until the highest points of the left and right ends of the massage blocks are slightly lower than the middle positions of the left limit plate 15 and the right limit plate 16, the connecting rod 13 extrudes the travel switch 28, and the travel switch 28 turns on the polarization motor 27 through a wireless signal; when the connecting rod 13 is disengaged from the travel switch 28, the polarization motor 27 is stopped.

In order to enable the left limit plate 15 and the right limit plate 16 to generate relative motion on the bracket 14, the inner sides of the two brackets 14 are respectively provided with a T-shaped groove 29, two T-shaped blocks 32 are connected in the T-shaped groove 29 in a sliding manner, the outer sides of the two T-shaped blocks 32 are respectively fixedly connected with one end of the left limit plate 15 and one end of the right limit plate 16, the left end and the right end of the bracket 14 placed at the rear are rotatably connected with a screw 30 penetrating through the whole T-shaped groove 29, the screw 30 is in threaded connection with the two T-shaped blocks 32, the rotating directions of the two T-shaped blocks 32 are opposite, one end of the screw 30 is fixedly provided with a hand wheel 31, the front end surface of the bracket 14 placed at the front is provided with an open groove 33, the open groove 33 is communicated with the T-shaped groove 29 in the bracket 14, the front ends of the two T-, the screw 30 rotates to enable the two T-shaped blocks 32 to drive the left limiting plate 15 and the right limiting plate 16 to move relative to each other in the horizontal direction on the screw 30, and therefore the two extrusion surfaces 10 are convenient to be matched with the two arc-shaped inclined surfaces 25 to extrude the left arc-shaped plate 7 and the right arc-shaped plate 8.

The upper surface of the bracket 14 is provided with a concave cambered surface 36, the height of the concave cambered surface 36 is slightly lower than the inner side surface of the rubber layer 11 when the highest points of the left and right ends of the massage blocks above the connecting rod 13 are slightly lower than the middle positions of the left limiting plate 15 and the right limiting plate 16, so that the spherical surfaces 26 at the inner sides of the two massage blocks can simultaneously vibrate and squeeze the outer surfaces of the massage arms.

When the invention is used, the water-saving agent is added,

before massaging the arm, the arm is transversely placed in the concave cambered surfaces 36 on the two brackets 14, the distance between the left limiting plate 15 and the right limiting plate 16 is adjusted according to the thickness of the arm, the hand wheel 31 behind the left limiting plate 15 and the right limiting plate 16 is firstly rotated, the hand wheel 31 is rotated to drive the screw rod 30 to rotate, the screw rod 30 enables the two T-shaped blocks 32 to drive the left limiting plate 15 and the right limiting plate 16 to generate relative movement in the T-shaped groove 29, so that the size of an included angle between the two extrusion surfaces 10 is adjusted to accord with the thickness of the arm of a human body, after the positions of the left limiting plate 15 and the right limiting plate 16 are adjusted, the two bolt knobs 35 penetrate through the open grooves 33 to be respectively connected with the threaded holes 34 on the T-shaped blocks 32, after the bolt knobs 35 are screwed, the left limiting plate 15 and the right limiting plate 16 are firmly fixed on the two brackets 14, if the distance between the two extrusion, firstly, two bolt knobs 35 are unscrewed, a hand wheel 31 is rotated, and the hand wheel 31 drives a screw rod 30 to rotate, so that the left limiting plate 15 and the right limiting plate 16 generate relative movement;

in order to enhance the massage effect, a plurality of massage balls 18 are arranged on the inner side surface of the rubber layer 11, each massage ball 18 is positioned between two adjacent spherical surfaces 26, so that two massage blocks are respectively positioned at the initial positions of the outer sides of the left limiting plate 15 and the right limiting plate 16, the variable frequency motor 39 drives the first reel 4, the second reel 40 and the gear 6 to rotate forward rapidly, the rope on the first reel 4 becomes loose, the pressure spring rapidly presses the telescopic rod 17 downwards under the action of elastic force, so that the telescopic rod 17 pushes the massage blocks below to move downwards, meanwhile, the rope on the second reel 40 and the rack 12 drive the massage blocks on the connecting rod 13 to move upward rapidly, when the arc-shaped inclined surfaces 25 on the left arc-shaped plate 7 and the right arc-shaped plate 8 are in contact with the left limiting plate 15 and the right limiting plate 16, the variable frequency motor 39 rotates to rotate forward slowly, the two massage blocks enter an included angle formed by the two extrusion surfaces 10, and the highest points at the, at this time, the massage ball 18 just extrudes the arm to play a role of massage; at the moment, the variable frequency motor 39 is converted into slow reverse rotation, the rope on the first reel 4 pulls the telescopic rod 17 upwards and compresses the compression spring in the telescopic rod 17 to enable the massage blocks below the telescopic rod 17 to move upwards at a slow speed, meanwhile, the rope on the second reel 40 and the massage blocks on the connecting rod 13 of the rack 12 move downwards at a slow speed, when the two massage blocks are separated from the extrusion of the two extrusion surfaces 10, the variable frequency motor 39 is converted into fast reverse rotation, when the massage blocks below the telescopic rod 17 are positioned above the left limiting plate 15 and the right limiting plate 16 and the massage blocks on the connecting rod 13 are positioned below the left limiting plate 15 and the right limiting plate 16, the variable frequency motor 39 is converted into fast forward rotation again to repeat the above movement, so that the two massage blocks generate relative movement to;

when the connecting rod 13 presses the travel switch 28, the travel switch 28 controls all the polarization motors 27 to start through wireless signals, the polarization motors 27 drive the massage columns 24 to slide on the inverted T-shaped guide rods 23 and compress the springs, the maximum vibration amplitude of the spherical surfaces 26 at the bottoms of the massage columns 24 is slightly higher than the top surfaces of the massage balls 18, and when the connecting rod 13 is separated from the travel switch 28, the polarization motors 27 stop rotating, and the spherical surfaces 26 stop vibrating.

When two massage pieces get into between left limiting plate 15 and the right limiting plate 16, arc inclined plane 25 on left arc 7 and the right arc 8 is extrudeed by the compressive plane 10 on left limiting plate 15 and the right limiting plate 16 for left arc 7 and right arc 8 compression spring 9 revolve its articulated department rotation, thereby realize reducing the size of massage chamber.

When the driving motor 19 is not started, the variable frequency motor 39 drives the two massage blocks to perform local massage up and down on the arm, if the whole massage is needed according to the length direction of the arm, the driving motor 19 is started, the driving motor 19 drives the lead screw 20 to rotate through the speed reducer, so that the sliding seat 2 drives the two massage blocks to move on the lead screw 20 through the supporting frame 3, when the driving motor 19 drives the sliding seat 2 to move to the other end of the lead screw 20, the driving motor 19 is turned reversely, and therefore the sliding seat 2 moves back and forth on the lead screw 20, and the whole massage in the length direction of the arm is performed.

If the local massage is needed, the arm is placed on the bracket 14, the driving motor 19 is started, the sliding seat 2 drives the two massage blocks to move to the corresponding positions needing massage, and the driving motor 19 is switched off; the variable frequency motor 39 drives the two massage blocks to reciprocate up and down through the rope and the rack 12, so that the massage balls 18 and the springs have the massage effect on the arm, and meanwhile, when the connecting rod 13 extrudes the travel switch 28, the polarization motor 27 drives the massage column 24 to vibrate, and further drives the spherical surface 26 to vibrate and extrude the arm, so that the massage effect on the arm is enhanced.

The adjustable massage cavity is adjusted by adopting the adjustable left limit plate 15 and the adjustable right limit plate 16 to match the left arc-shaped plate 7 and the right arc-shaped plate 8, so that the size of the massage cavity is ensured to be in accordance with the natural size of the appearance of the human arm; the variable frequency motor 39 which can rotate forward and backward is adopted to drive the speed of the massage blocks on the connecting plate 37 to enter the left limiting plate 15 and the right limiting plate 16 through the rope and the rack 12 to be greater than the speed of the massage blocks in the process of entering the left limiting plate 15 and the right limiting plate 16, so that the speed of the two massage blocks after being separated from the two extrusion surfaces 10 is greater than the speed of the two massage blocks before being separated from the two extrusion surfaces 10, the springs and the massage balls 18 on the two massage blocks further play a role in massaging the arm, the massage efficiency is improved, and unnecessary useless work is reduced; the sliding seat 2 which can move back and forth is arranged to drive the two massage blocks to massage the arms in the front and back directions; and the polarization motor 27 is adopted to drive the massage column 24 to vibrate, so that the spherical surface 26 massages the arm, the massage comfort is enhanced, and the massage efficiency is improved.

The upper end and the lower end of the two extrusion surfaces 10 are respectively provided with a transition inclined surface 38, and when the sliding seat 2 drives the two massage blocks to move back and forth, the transition inclined surfaces are used for yielding the left arc-shaped plate 7 and the right arc-shaped plate 8, so that the two massage blocks smoothly enter between the left limiting plate 15 and the right limiting plate 16.

According to the invention, the left limit plate 15 and the right limit plate 16 are fixed on the T-shaped block 32, and the T-shaped block 32 is in threaded connection with the screw 30, so that when the screw 30 rotates, the left limit plate 15 and the right limit plate 16 can move relatively on the screw 30 along with the T-shaped block 32, and further the extrusion surfaces 10 on the left limit plate 15 and the right limit plate 16 can be better matched with the arc inclined surfaces 25 on the left arc-shaped plate 7 and the right arc-shaped plate 8 above.

In the invention, the distance of the upward and downward movement of the massage blocks below the telescopic rod 17 is equal to the distance of the upward and downward movement of the massage blocks on the connecting rod 13 driven by the variable frequency motor 39 through the rope and the rack 12, so that the two massage blocks can massage the arm at the same time.

According to the invention, the telescopic rod 17 is fixed at the left lower end of the cross rod 5, the rope on the first reel 4 penetrates through the cross rod 5, is connected to the inner part of the upper end of the telescopic rod 17 and penetrates through the pressure spring, the rope pulls the telescopic rod 17 to contract upwards and compress the pressure spring along with the rotation of the first reel 4, or the rope loosens the telescopic rod 17, and the telescopic rod 17 extends downwards under the elasticity of the pressure spring, so that when a massage block below the telescopic rod 17 moves up and down, the massage block cannot swing back and forth due to the back and forth movement of the massage block driven by the sliding seat 2, and the accuracy of.

According to the invention, the speed and distance of the second reel 40 for driving the connecting rod 13 to move upwards through the rope are consistent with the speed and distance of the rack 12 for moving upwards, so that the gravity of the massage blocks on the connecting rod 13 is overcome, and the connecting rod 13 drives the massage blocks to move up and down stably.

The invention is provided with the bearing seat 21 which not only plays a role of supporting the screw rod 20, but also is used for limiting the limit position of the sliding seat 2 moving back and forth on the bottom plate 1.

The rubber layer 11 is arranged in the invention, so that when the left arc-shaped plate 7 and the right arc-shaped plate 8 rotate around the hinge joint simultaneously, the rubber layer 11 is stretched or compressed, and the size of the massage cavity is adjusted.

The massage ball 18 and the vibrating spherical surface 26 are arranged in the massage arm, so that the massage arm has the functions of promoting blood circulation, eliminating fatigue and strengthening metabolism when the massage arm massages the arm, and the comfort of the arm can be improved.

Claims

1. An arm fracture rehabilitation massager comprises a bottom plate (1), and is characterized in that a sliding seat (2) capable of moving back and forth is arranged on the bottom plate (1), a support frame (3) is fixed on the sliding seat (2), a first reel (4) capable of rotating left and right is fixed at the upper end of the support frame (3), and a cross rod (5) positioned on the left side of the first reel (4) is fixed at the upper end of the support frame (3); the front end of the first reel (4) is coaxially provided with a gear (6), the right side of the gear (6) is meshed with a vertical rack (12) capable of sliding up and down on the support frame (3), the left side of the lower end of the rack (12) is fixedly provided with a connecting rod (13), the free ends of the cross rod (5) and the connecting rod (13) are connected with massage blocks, each massage block comprises a left arc-shaped plate (7) and a right arc-shaped plate (8) which are hinged together, a spring (9) is connected between the left arc-shaped plate (7) and the right arc-shaped plate (8), the inner side surfaces of the left arc-shaped plate (7) and the right arc-shaped plate (8) are connected with rubber layers (11) arranged between the left arc-shaped plate (7) and the right arc-shaped plate (8); the front end and the rear end of the left side above the bottom plate (1) are respectively fixed with a bracket (14) horizontally and transversely placed, a left limiting plate (15) and a right limiting plate (16) which can move left and right are connected between the two brackets (14), the adjacent sides of the left limiting plate (15) and the right limiting plate (16) are respectively provided with a vertical extrusion surface (10), and the two extrusion surfaces (10) form a certain included angle and are bilaterally symmetrical about a vertical plane where the left center and the right center of the two brackets (14) are located; the free end of the cross rod (5) is connected with the massage blocks through a telescopic rod (17), a pressure spring is arranged in the telescopic rod (17), the pressure spring drives the massage blocks on the telescopic rod (17) to move downwards and the rack (12) drives the massage blocks on the connecting rod (13) to move upwards, when the two massage blocks enter between the left limiting plate (15) and the right limiting plate (16), the two extrusion surfaces (10) extrude the left arc-shaped plate (7) and the right arc-shaped plate (8) to reduce the distance between the left end and the right end of the rubber layer (11), and the two massage blocks enter between the left limiting plate (15) and the right limiting plate (16) to form a massage cavity; a rope is wound on the first reel (4), the rope penetrates through the cross rod (5) and the pressure spring to be connected to the inside of the telescopic rod (17), the first reel (4) drives the massage blocks on the telescopic rod (17) to move upwards through the rope and drives the massage blocks on the connecting rod (13) to move downwards through the rack (12), and when the left arc-shaped plate (7) and the right arc-shaped plate (8) are separated from the two extrusion surfaces (10), the spring (9) outwards stretches the left arc-shaped plate (7) and the right arc-shaped plate (8) to increase the distance between the left end and the right end of the rubber layer (11);

a driving motor (19) capable of rotating forward and backward is fixed on the upper surface of the bottom plate (1), the driving motor (19) is connected with a lead screw (20) in the front and back direction through a reducer, the front end and the back end of the lead screw (20) are fixed on the bottom plate (1) through a bearing seat (21), the lead screw (20) is in threaded connection with the sliding seat (2), the driving motor (19) drives the lead screw (20) to rotate, thereby make slide (2) back-and-forth movement on lead screw (20), the rear of first reel (4) is driven through inverter motor (39) that can just reverse, and the speed that rope and rack (12) on winding first reel (4) drive two massage pieces respectively and get into before left limiting plate (15) and right limiting plate (16) is greater than its speed that gets into left limiting plate (15) and right limiting plate (16) in-process through connecting rod (13), the idle work of doing when having reduced two massage pieces up-and-down motion.

2. The arm fracture rehabilitation massager as claimed in claim 1, wherein a second reel (40) is coaxially arranged at the front end of the first reel (4) and located behind the gear (6), the second reel (40) penetrates through the support frame (3) through a rope to be connected with the middle of the connecting rod (13), the rope on the second reel (40) and the rope on the first reel (4) are opposite in winding direction, the lifting speed and distance of the rope on the second reel (40) and the rack (12) are consistent, and when the variable frequency motor (39) rotates, the rope on the second reel (40) and the rack (12) drive the connecting rod (13) together to enable the massage block above to move up and down; the frequency conversion motor (39) rotates to make the two massage blocks generate relative motion.

3. The arm fracture rehabilitation massager as claimed in claim 1, wherein a plurality of vibrating devices are arranged on the inner side surfaces of the left arc-shaped plate (7) and the right arc-shaped plate (8), each vibrating device comprises an inverted T-shaped guide rod (23) fixed on the inner side surface of the left arc-shaped plate (7) or the right arc-shaped plate (8), a massage column (24) is connected to the guide rod (23) in a sliding manner, the big end of the guide rod (23) is located on the inner side of the massage column (24), the lower end of the massage column (24) penetrates through the rubber layer (11) and is provided with a spherical surface (26), a spring is sleeved on the guide rod (23), the upper end of the spring is in contact with the inner side surface of the left arc-shaped plate (7) or the right arc-shaped plate (8), the lower end of the spring is in contact with the upper end surface of the massage column (24), a small-sized polarizing motor (27) is installed inside the massage column (24), vibration of the polarizing motor (27) drives the massage column (24) .

4. The arm fracture rehabilitation massager of claim 1, wherein the spring (9) can also be a pressure spring or a tension spring, the pressure spring can be installed between the left arc-shaped plate (7) and the right arc-shaped plate (8) and is located on the inner side surfaces of the left arc-shaped plate (7) and the right arc-shaped plate (8), the tension spring can be installed above the left arc-shaped plate (7) and the right arc-shaped plate (8) and is located on the position between the left arc-shaped plate (7) and the right arc-shaped plate (8), when the two massage blocks enter between the left limiting plate (15) and the right limiting plate (16), the two extrusion surfaces (10) extrude the left arc-shaped plate (7) and the right arc-shaped plate (8) to compress the pressure spring or stretch the tension spring and rotate inwards around the hinged position thereof, and when the two massage blocks are separated from the two extrusion surfaces (10), the left arc-shaped plate (7) and the right arc-shaped plate (8) are outwards rotated around the hinged position thereof under the stretching force of the pressure spring or the tension spring And (4) rotating.

5. The arm fracture rehabilitation massager of claim 1, wherein the outer sides of the left arc-shaped plate (7) and the right arc-shaped plate (8) are respectively provided with an arc-shaped inclined surface (25), the two arc-shaped inclined surfaces (25) form a certain included angle, the opening direction and the size of the included angle are respectively consistent with the opening direction and the size of the included angle formed by the two extrusion surfaces (10), and when the compression spring enables the massage blocks on the telescopic rod (17) to move downwards and the rack (12) enables the massage blocks on the connecting rod (13) to move upwards, the two extrusion surfaces (10) extrude the left arc-shaped plate (7) and the right arc-shaped plate (8), so that the two massage blocks can smoothly enter between the left limiting plate (15) and the right limiting plate (16).

6. The arm fracture rehabilitation massager as claimed in claim 1, wherein the lower end of the right limiting plate (16) is provided with a travel switch (28), when the rack (12) drives the massage blocks on the connecting rod (13) to move upwards until the highest points of the left and right ends of the massage blocks are slightly lower than the middle positions of the left limiting plate (15) and the right limiting plate (16), the connecting rod (13) presses the travel switch (28), and the travel switch (28) turns on the polarization motor (27) through a wireless signal; when the connecting rod (13) is disengaged from the travel switch (28), the polarization motor (27) stops rotating.

7. The arm fracture rehabilitation massager as claimed in claim 1, wherein the inner sides of the two brackets (14) are respectively provided with a T-shaped groove (29), the T-shaped groove (29) is connected with two T-shaped blocks (32) in a sliding manner, the outer sides of the two T-shaped blocks (32) are respectively fixedly connected with one ends of the left limiting plate (15) and the right limiting plate (16), the left end and the right end of the bracket (14) placed at the rear are rotatably connected with a screw rod (30) penetrating through the whole T-shaped groove (29), the screw rod (30) is in threaded connection with the two T-shaped blocks (32), the rotating directions of the two T-shaped blocks (32) are opposite, one end of the screw rod (30) is fixed with a hand wheel (31), the front end face of the bracket (14) placed at the front is provided with an open groove (33), the open groove (33) is communicated with the T-shaped groove in the bracket (14), the front end faces of the two T, two bolt knobs (35) pass through open slot (33) and are connected with threaded holes (34) on two T-shaped blocks respectively, and screw rod (30) rotate and make two T-shaped blocks (32) drive left limiting plate (15) and right limiting plate (16) to produce the relative movement of horizontal direction on screw rod (30), make things convenient for two extrusions (10) to cooperate two arc inclined planes (25) to extrude left arc (7) and right arc (8).

8. The arm fracture rehabilitation massager as claimed in claim 1, wherein the upper surface of the bracket (14) is provided with a concave arc surface (36), and the height of the concave arc surface (36) is slightly lower than the inner side surface of the rubber layer (11) when the highest point of the left and right ends of the massage block above the connecting rod (13) is slightly lower than the middle position of the left limiting plate (15) and the right limiting plate (16), so that the spherical surfaces (26) at the inner sides of the two massage blocks can simultaneously vibrate and squeeze the outer surface of the massage arm.