Arm and leg massagers

Abstract

This invention relates to an arm and leg massager, comprising a slide cylinder (1), a massage device, a track device, a power and transmission device, an end ring (23), a base plate (25), and a control device. Four massage balls (5) simultaneously massage different parts around the arm or leg, applying both pressure and pushing / pulling; the arm or leg may vary in thickness, but the massage balls (5) can contact all parts of the arm or leg; people may vary in weight, but the massage balls (5) can contact the arms or legs of different people; the arm or leg length may vary, but the massage balls (5) can massage the entire arm or leg of different people; the massage pressure can be adjusted to meet the needs of different people; the slide cylinder (1) automatically rotates; the motor (16) operates at a safe voltage, eliminating the risk of electric shock; mechanical massage replaces manual massage, allowing non-paralyzed individuals to perform massage independently without assistance; and for paralyzed individuals, massage greatly reduces the labor intensity of the operator.

Description

Technical Field

[0001] This invention relates to an arm and leg massager, and more particularly to an arm and leg massager that can replace manual massage. Background Technology

[0002] My wife suffered her second stroke. She survived after being rushed to the hospital, but she has been paralyzed ever since, with stiff limbs. Without frequent massages, there is no hope of recovery. I massage her multiple times a day, sometimes bending over, sometimes leaning forward, sometimes pressing, sometimes pushing, sometimes pulling, sometimes patting – it's very strenuous, especially considering I'm over 80 myself. At this moment, I so wish for a mechanical massager instead of a manual one. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an arm and leg massager that can replace manual massage.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0005] An arm and leg massager includes a slide, a massage device, a track device, a power and transmission device, an end ring, a base plate, and a control device.

[0006] The slide is a thick-walled cylinder made of non-toxic plastic. Its cavity is large enough for an arm or leg to pass through. The cylinder wall has four pin holes, two slide rail holes, one electrical cavity, one rack hole, and two reed tube cavities.

[0007] These four pin holes surround the axis of the slide cylinder and are evenly distributed radially in the cylinder wall. Of these four pin holes, two are located at the top and the other two are located at the bottom. The two pin holes at the top are horizontally symmetrical to each other, and the two pin holes at the bottom are horizontally symmetrical to each other.

[0008] Any one of these four pin holes consists of a coaxial outer pin hole and an inner pin hole.

[0009] The outer pin hole is a round hole, and its outer opening is located on the outer circumferential surface of the slide cylinder.

[0010] The inner pin hole is a round hole that communicates with the outer pin hole. Its inner diameter is smaller than that of the outer pin hole, and its axial length is smaller than that of the outer pin hole. Its inner opening is located on the inner circumferential surface of the slide cylinder.

[0011] Both of these slide rail holes are vertical square holes that penetrate the wall of the slide cylinder along the axial direction. Their axes are parallel and coplanar with the axis of the slide cylinder, and their axes are located on both sides of the axis of the slide cylinder, and they are axially symmetrical to each other.

[0012] The electrical cavity is located in the cylinder wall at the longitudinal center above the slide cylinder, and it is normally covered by a cover plate; the cover plate is easy to remove from the slide cylinder and easy to put on.

[0013] The rack hole is a vertical square hole that penetrates the wall of the slide cylinder along the axial direction. Its axis is parallel to the axis of the slide cylinder and is located directly above the axis of the slide cylinder. Its longitudinal center communicates with the electrical cavity.

[0014] Both of these reed tube cavities are vertical strip-shaped cavities, and they are both hidden in the upper part of the cylinder wall of the slide, located at opposite ends of the slide.

[0015] A massage device is installed in each of the four pin holes of the slide.

[0016] The massage device installed in any one of these four pin holes includes a pin body, a ball frame, a massage ball, a ball shaft, a screw, and a spring.

[0017] The ball frame, which is mostly a spherical shell, is located inside the cavity of the slide tube.

[0018] The massage ball is located in the cavity of the slide tube. Its outer diameter is smaller than the inner diameter of the ball frame. It has a shaft hole, the axis of which passes through the center of the ball.

[0019] The ball shaft has a length equal to or greater than the outer diameter of the ball frame, and its outer diameter is smaller than the inner diameter of the shaft hole on the massage ball. After passing through the shaft hole, its two ends are fixedly connected to the ball frame at the corresponding positions, and its axis passes through the center of the ball frame.

[0020] The pin is T-shaped and consists of a pin head and a pin rod combined into one piece.

[0021] The pin head is a short cylinder with an outer diameter equal to or smaller than the inner diameter of the outer pin hole on the pin hole, and it is located in the outer pin hole.

[0022] The pin is a cylinder with an axial length greater than that of the pin head. Its outer diameter is equal to or less than the inner diameter of the inner pin hole on the pin hole. Its axial length is greater than that of the inner pin hole. It is inserted into the inner pin hole, and its inner end protrudes from the inner end of the slide cylinder cavity and is fixedly connected to the apex of the ball frame.

[0023] The screw has threads that engage with the threads of the pin hole, and it is screwed into the outer opening of the pin hole.

[0024] The spring has a free length greater than the axial length of the outer pin hole. It is inserted into the outer pin hole, with its inner end contacting the outer end face of the pin head and its outer end contacting the inner end face of the screw. Adjusting the depth of the screw entering the outer pin hole can change the magnitude of the pressure exerted by the spring on the pin body.

[0025] There are four massage balls inside the cylinder.

[0026] A track device is installed in each of the two slide rail holes on the slide cylinder.

[0027] A track device, including a ball bearing holder, balls, and a slide rail, is installed in either of the two slide rail holes.

[0028] The ball bearing holder is a strip plate with a width equal to or less than the width of the slide rail hole and a length equal to or less than the axial length of the slide rail hole. Multiple balls are movably mounted on it along the axial direction, and these balls will not fall off.

[0029] The two ball bearing holders do not expose the bottom surface of the balls and are fixedly connected to the upper and lower walls of the slide rail hole, respectively.

[0030] The slide rail is a strip plate with a rectangular cross-section, but its upper or lower surface has an arc-shaped ball groove. Its width is smaller than the width of the slide rail hole, its height is smaller than the height of the slide rail hole, and its length is greater than the axial length of the slide rail hole. It is inserted into the slide rail hole, and its two ends extend outward from the two ends of the slide cylinder. The ball grooves on its upper and lower surfaces are in active contact with the balls on the two ball holders.

[0031] Two slide rails are installed on the slide cylinder.

[0032] The power and transmission device includes an electric motor, gears, and racks.

[0033] The rack is a long strip plate with a rectangular cross-section. Its width is equal to or less than the width of the rack hole on the slide cylinder, its height is equal to or less than the height of the rack hole, and its length is equal to the length of the slide rail. It is inserted into the rack hole with the rack teeth facing upwards, and its two ends extend outwards from both ends of the slide cylinder.

[0034] The motor operates at a safe DC voltage and is installed in the electrical cavity on the slide. Its base is fixedly connected to the bottom of the electrical cavity, and the gear is fixedly mounted on its shaft. The gear teeth on the gear mesh with the rack teeth on the rack.

[0035] The end ring is a thick-walled short cylinder with an outer diameter greater than that of the slide tube, an inner diameter equal to that of the slide tube, and an axial length less than that of the slide tube. It is made of non-toxic plastic and has a fixed connecting ring seat at its lower part.

[0036] The axes of both end rings coincide with the axis of the slide cylinder, which is located between the two end rings.

[0037] These two end rings are fixedly connected to the two slide rails and the two ends of the rack that pass through the slide cylinder.

[0038] The base plate is a rectangular plate with a longitudinal length equal to or greater than the distance between the two end rings and a transverse width equal to or greater than the outer diameter of the end rings. The upper surfaces near both ends of the base plate are fixedly connected to the lower surfaces of the ring seats on the two end rings, respectively.

[0039] The control device includes a reed switch, a carriage, a magnet, a relay, a switch, and a power supply.

[0040] The two reed switches are respectively fixed in the two reed switch cavities on the slide cylinder.

[0041] The carriage is vertically mounted on the rack and is located on the right side of the slide cylinder. It can move left and right on the rack on the right side of the slide cylinder, but cannot detach from the rack.

[0042] Of the two magnets, one is fixedly connected to the right side of the end ring on the left side of the slide, and the other is fixedly connected to the left side of the slide; the two magnets and the two reeds are located on the same horizontal straight line.

[0043] The relay is fixedly installed in the electrical cavity of the slide.

[0044] This power supply is connected to an external 220V AC power source, and its output voltage is a safe DC voltage.

[0045] The two reed switches, the relay, the power supply, the switch, and the motor windings constitute the control circuit. When the switch is turned on, the slide moves to the left. When the left reed switch on the slide approaches the magnet on the left, the reed switch is triggered by the magnet, and the relay switches the direction of the current through the motor, causing the slide to move to the right. During the rightward movement of the slide, when the right reed switch on the slide approaches the magnet mounted on the slide frame, the reed switch is triggered by the magnet, and the relay switches the direction of the current through the motor, causing the slide to move to the left. When the switch is turned off, the slide stops moving.

[0046] The massage program for this massager is as follows:

[0047] The arm or leg extends into the left end ring, passes through the cylinder cavity of the slide, and extends to the right; the power supply is connected to 220 volt AC, the switch is turned on, and the slide moves back and forth along the arm or leg. At the same time, the four massage balls in the cylinder cavity roll back and forth on the arm or leg it contacts, providing a massage effect; finally, the switch is turned off, the massage stops, and the arm or leg is withdrawn.

[0048] To meet the needs of people of different heights, the arm and leg massager needs to be available in various sizes.

[0049] To prevent skin damage, when using this arm and leg massager to massage the arms, the arm sleeves must be tight; when using this arm and leg massager to massage the legs, the legs must be tight.

[0050] With this structure, the depth to which the adjusting screw enters the outer pin hole can be changed, thus altering the spring's pressure on the pin. This design produces the following technical effects:

[0051] Firstly, although the thickness of different parts of the same person's arms or legs varies, the massage ball can make contact with all parts of the arms or legs.

[0052] Secondly, although different people have different body sizes, the massage ball can come into contact with the arms or legs of different people.

[0053] Thirdly, the pressure applied to the arms or legs by the massage ball can be adjusted to meet the needs of different people.

[0054] With this structure, the four massage balls allow for simultaneous massage of different areas around the arms or legs. The massage combines pressing and pushing / pulling motions.

[0055] With this structure, the power supply output voltage is a safe voltage, eliminating the safety hazard of electric shock during massage.

[0056] With this structure, thanks to the control device, the slide can automatically rotate, and the four massage balls massage back and forth without manual operation.

[0057] With this structure, the slide can be adjusted left and right by the position of the rack on the right side of the slide cylinder. Although the length of each person's arm or leg is different, it can massage the entire arm or leg of different people.

[0058] With this structure, the friction between the slide cylinder and the slide rail is very small when the slide cylinder moves back and forth along the slide rail due to the setting of the ball frame and ball. This extends the service life of the arm and leg massager and saves energy.

[0059] With this structure, mechanical massage replaces manual massage. On the one hand, non-paralyzed people can massage themselves without the help of others; on the other hand, massaging paralyzed people greatly reduces the labor intensity of the operator. Attached Figure Description

[0060] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0061] Figure 1 This is a schematic diagram of the longitudinal vertical cross-section of an arm and leg massager.

[0062] Figure 2 yes Figure 1 Schematic diagram of the horizontal and vertical cross-sections of the middle sliding cylinder.

[0063] Figure 3 yes Figure 1 A schematic diagram of the horizontal and vertical cross-sections of the middle ring. Detailed Implementation

[0064] like Figures 1 to 3As shown in the figures, an arm and leg massager includes a slide cylinder 1, a massage device, a track device, a power and transmission device, an end ring 23, a base plate 25, and a control device.

[0065] like Figure 1 , Figure 2 As shown, the slide cylinder 1 is a thick-walled cylinder made of non-toxic plastic. Its cylinder cavity 1a allows an arm or leg to pass through. Its cylinder wall has four pin holes 2, two slide rail holes 9, an electrical cavity 13, a rack hole 15, and two reed tube cavities 19.

[0066] like Figure 2 As shown, the four pin holes 2 are evenly distributed radially in the cylinder wall of the slide cylinder 1 around the axis of the slide cylinder 1; of the four pin holes 2, two pin holes 2 are located at the top and the other two pin holes 2 are located at the bottom, and the two pin holes 2 located at the top are horizontally symmetrical to each other, and the two pin holes 2 located at the bottom are horizontally symmetrical to each other.

[0067] like Figure 2 As shown, any one of these four pin holes 2 is composed of a coaxial outer pin hole 2a and an inner pin hole 2b.

[0068] The outer pin hole 2a is a round hole, and its outer opening is located on the outer circumferential surface of the slide cylinder 1.

[0069] The inner pin hole 2b is a round hole that communicates with the outer pin hole 2a. Its inner diameter is smaller than that of the outer pin hole 2a, and its axial length is smaller than that of the outer pin hole 2a. Its inner opening is located on the inner circumferential surface of the slide cylinder 1.

[0070] like Figure 2 As shown, the two slide rail holes 9 are both vertical square holes that penetrate the wall of the slide cylinder 1 along the axial direction. Their axes are parallel and coplanar with the axis of the slide cylinder 1, and their axes are located on both sides of the axis of the slide cylinder 1, and they are axially symmetrical to each other.

[0071] like Figure 1 , Figure 2 As shown, the electrical cavity 13 is located in the cylinder wall at the longitudinal center above the slide cylinder 1, and is normally covered by a cover plate 14; the cover plate 14 is convenient to remove from the slide cylinder 1 and convenient to put on.

[0072] like Figure 1 , Figure 2 As shown, the rack hole 15 is a vertical square hole that penetrates the wall of the slide cylinder 1 along the axial direction. Its axis is parallel to the axis of the slide cylinder 1 and is located directly above the axis of the slide cylinder 1. Its longitudinal center is connected to the electrical cavity 13.

[0073] like Figure 1As shown, the two reed tube cavities 19 are both vertical strip cavities, which are hidden in the upper part of the cylinder wall of the slide cylinder 1, and are located at both ends of the slide cylinder 1.

[0074] like Figure 2 As shown, a massage device is installed in each of the four pin holes 2 of the slide cylinder 1.

[0075] like Figure 2 As shown, a massage device installed in any one of the four pin holes 2 includes a pin body, a ball frame 4, a massage ball 5, a ball shaft 6, a screw 7, and a spring 8.

[0076] The ball frame 4, which is a large part of the spherical shell, is located in the cavity 1a of the slide cylinder 1.

[0077] The massage ball 5 is located in the cavity 1a of the slide cylinder 1. Its outer diameter is smaller than the inner diameter of the ball frame 4. It has a shaft hole 5a, and the axis of the shaft hole 5a passes through its center.

[0078] The ball shaft 6 has a length equal to or greater than the outer diameter of the ball frame 4, and its outer diameter is smaller than the inner diameter of the shaft hole 5a on the massage ball 5. After passing through the shaft hole 5a, its two ends are fixedly connected to the ball frame 4 at the corresponding positions, and its axis passes through the center of the ball in the ball frame 4.

[0079] The pin is T-shaped and consists of a pin head 3a and a pin rod 3b combined into one piece.

[0080] The pin head 3a is a short cylinder with an outer diameter equal to or smaller than the inner diameter of the outer pin hole 2a on the pin hole 2, and it is located in the outer pin hole 2a.

[0081] The pin 3b is a cylinder with an axial length greater than that of the pin head 3a. Its outer diameter is equal to or less than the inner diameter of the inner pin hole 2b on the pin hole 2. Its axial length is greater than that of the inner pin hole 2b. It is inserted into the inner pin hole 2b and its inner end protrudes from the inner end of the slide cylinder 1 cavity 1a. It is fixedly connected to the apex of the ball frame 4.

[0082] The screw 7 has threads that engage with the threads of the outer pin hole 2a, and it is screwed into the outer opening of the outer pin hole 2a.

[0083] The spring 8 has a free length greater than the axial length of the outer pin hole 2a. It is inserted into the outer pin hole 2a, with its inner end in contact with the outer end face of the pin head 3a and its outer end in contact with the inner end face of the screw 7. Adjusting the depth of the screw 7 entering the outer pin hole 2a can change the magnitude of the pressure of the spring 8 on the pin body.

[0084] The cylinder 1 has four massage balls 5 in its cavity 1a.

[0085] like Figure 1 , Figure 2As shown, a track device is installed in each of the two slide rail holes 9 on the slide cylinder 1.

[0086] like Figure 2 As shown, the track device installed in either of the two slide rail holes 9 includes a ball bearing frame 10, a ball bearing 11, and a slide rail 12.

[0087] The ball bearing holder 10 is a strip plate with a width equal to or less than the width of the slide rail hole 9 and a length equal to or less than the axial length of the slide rail hole 9. Multiple balls 11 are movably mounted on it along the axial direction, and these multiple balls 11 will not fall off it.

[0088] The two ball bearing holders 10 do not expose the bottom surface of the ball bearings 11, and are fixedly connected to the upper and lower walls of the slide rail hole 9, respectively.

[0089] like Figure 1 , Figure 2 As shown, the slide rail 12 is a strip plate with a rectangular cross-section, but its upper or lower surface has an arc-shaped ball groove 12a. Its width is smaller than the width of the slide rail hole 9, its height is smaller than the height of the slide rail hole 9, and its length is greater than the axial length of the slide rail hole 9. It is inserted into the slide rail hole 9, and its two ends extend outward from the two ends of the slide cylinder 1. The ball grooves 12a on its upper and lower surfaces are in active contact with the balls 11 on the two ball holders 10.

[0090] Two slide rails 12 are installed on the slide cylinder 1.

[0091] like Figure 1 , Figure 2 As shown, the power and transmission device includes an electric motor 16, a gear 17, and a rack 18.

[0092] The rack 18 is a long strip plate with a rectangular cross-section. Its width is equal to or less than the width of the rack hole 15 on the slide cylinder 1, its height is equal to or less than the height of the rack hole 15, and its length is equal to the length of the slide rail 12. It is inserted into the rack hole 15 with the rack teeth facing upwards and its two ends extending outwards from both ends of the slide cylinder 1.

[0093] The motor 16 operates at a safe DC voltage and is installed in the electrical cavity 13 on the slide 1. Its base 16a is fixedly connected to the bottom of the electrical cavity 13, and the gear 17 is fixedly mounted on its shaft 16b. The gear teeth on the gear 17 mesh with the rack teeth on the rack 18.

[0094] like Figure 1 , Figure 3As shown, the end ring 23 is a thick-walled short cylinder with an outer diameter greater than that of the slide cylinder 1, an inner diameter equal to that of the slide cylinder 1, and an axial length less than that of the slide cylinder 1. It is made of non-toxic plastic and its lower part is fixedly connected to the ring seat 24.

[0095] The axes of the two end rings 23 coincide with the axis of the slide cylinder 1, which is located between the two end rings 23.

[0096] The two end rings 23 are fixedly connected to the two slide rails 12 and the two ends of the rack 18 that pass through the slide cylinder 1, respectively.

[0097] like Figure 1 As shown, the base plate 25 is a rectangular plate with a longitudinal length equal to or greater than the distance between the two end rings 23, a transverse width equal to or greater than the outer diameter of the end rings 23, and its upper surface near both ends is fixedly connected to the lower surface of the ring seat 24 on the two end rings 23 respectively.

[0098] like Figure 1 As shown, the control device includes a reed switch 20, a slide 21, a magnet 22, a relay, a switch, and a power supply.

[0099] Two reed switches 20 are respectively fixed in the two reed switch cavities 19 on the slide cylinder 1.

[0100] The slide 21 is vertically mounted on the rack 18 and is located on the right side of the slide cylinder 1. It can move left and right on the rack 18 on the right side of the slide cylinder 1, but cannot detach from the rack 18.

[0101] Of the two magnets 22, one magnet 22 is fixedly connected to the right side face of the end ring 23 on the left side of the slide cylinder 1, and the other magnet 22 is fixedly connected to the left side face of the slide 21; the two magnets 22 and the two reed switches 20 are located on the same horizontal straight line.

[0102] The relay is fixedly installed in the electrical cavity 13 of the slide 1.

[0103] This power supply is connected to an external 220V AC power source, and its output voltage is a safe DC voltage.

[0104] The two reed switches 20, the relay, the power supply, the switch, and the winding of the motor 16 constitute a control circuit. When the switch is turned on, the slide cylinder 1 moves to the left. When the left reed switch 20 on the slide cylinder 1 approaches the magnet 22 on the left, the reed switch 20 is triggered by the magnet 22, and the relay switches the current direction through the motor 16, causing the slide cylinder 1 to move to the right. During the movement of the slide cylinder 1 to the right, when the right reed switch 20 on the slide cylinder 1 approaches the magnet 22 mounted on the slide frame 21, the reed switch 20 is triggered by the magnet 22, and the relay switches the current direction through the motor 16, causing the slide cylinder 1 to move to the left. When the switch is turned off, the slide cylinder 1 stops moving.

[0105] The massage program for this massager is as follows:

[0106] like Figures 1 to 3 As shown in the figures, the arm or leg extends into the end ring 23 on the left, passes through the cavity 1a of the slide cylinder 1, and extends to the right. When the power supply is connected to 220V AC and the switch is turned on, the slide cylinder 1 moves back and forth along the arm or leg. At the same time, the four massage balls 5 in the cavity 1a roll back and forth on the arm or leg it contacts, providing a massage effect. Finally, the switch is turned off, the massage stops, and the arm or leg is withdrawn.

[0107] like Figure 1 As shown, the arm and leg massager needs to be available in various sizes to meet the needs of people of different heights.

[0108] To prevent skin damage, when using this arm and leg massager to massage the arms, the arm sleeves must be tight; when using this arm and leg massager to massage the legs, the legs must be tight.

[0109] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. The present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Such changes, without departing from the spirit of the present invention, still fall within the scope of the present invention.

Claims

1. An arm or leg massager, characterized in that: the arm or leg massager comprises a slide cylinder (1), a massaging device, a track device, a power and transmission device, an end ring (23), a base plate (25) and a control device; the slide cylinder (1) is a thick-walled cylinder made of non-toxic plastic, the cylinder cavity (1a) of which allows the arm or leg to pass through, and the cylinder wall of which is provided with four pin holes (2), two slide rail holes (9), an electric appliance cavity (13), a rack hole (15) and two reed switch cavities (19); the four pin holes (2) are evenly distributed in the cylinder wall of the slide cylinder (1) along the radial direction around the axis of the slide cylinder (1); among the four pin holes (2), two pin holes (2) are located above and the other two pin holes (2) are located below, and the two pin holes (2) above are horizontally axisymmetric to each other, and the two pin holes (2) below are horizontally axisymmetric to each other; any one of the four pin holes (2) is composed of a coaxial outer pin hole (2a) and an inner pin hole (2b); the outer pin hole (2a) is a circular hole, and the outer hole opening thereof is located on the outer circumferential surface of the slide cylinder (1); the inner pin hole (2b) is a circular hole, which is communicated with the outer pin hole (2a), the inner diameter of which is smaller than that of the outer pin hole (2a), and the axial length of which is smaller than that of the outer pin hole (2a), and the inner hole opening thereof is located on the inner circumferential surface of the slide cylinder (1); the two slide rail holes (9) are both vertical square holes, which penetrate the cylinder wall of the slide cylinder (1) along the axial direction, the axes of which are parallel and coplanar to the axis of the slide cylinder (1), the axes of which are located on both sides of the axis of the slide cylinder (1), and the two slide rail holes (9) are axisymmetric to each other; the electric appliance cavity (13) is located in the cylinder wall of the slide cylinder (1) at the longitudinal middle part above, which is normally covered with a cover plate (14); the cover plate (14) is convenient for being separated from the slide cylinder (1) and being covered; the rack hole (15) is a vertical square hole, which penetrates the cylinder wall of the slide cylinder (1) along the axial direction, the axis of which is parallel to the axis of the slide cylinder (1) and located directly above the axis of the slide cylinder (1), and the longitudinal middle part of which is communicated with the electric appliance cavity (13); the two reed switch cavities (19) are both vertical strip cavities, which are hidden in the cylinder wall of the upper part of the slide cylinder (1) and are located at both ends of the slide cylinder (1); one massaging device is installed in each of the four pin holes (2) of the slide cylinder (1); the massaging device installed in any one of the four pin holes (2) comprises a pin body, a ball holder (4), a massaging ball (5), a ball shaft (6), a screw (7) and a spring (8); the ball holder (4) is a large half spherical shell, which is located in the cylinder cavity (1a) of the slide cylinder (1); the massaging ball (5) is located in the cylinder cavity (1a) of the slide cylinder (1), the outer diameter of which is smaller than the inner diameter of the ball holder (4), and an axial hole (5a) is formed in the massaging ball (5), the axis of which passes through the ball center of the massaging ball (5). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The ball shaft (6) has a length equal to or greater than the outer diameter of the ball holder (4), an outer diameter less than the inner diameter of the shaft hole (5a) on the massage ball (5), and its two ends are fixedly connected with the ball holder (4) at the corresponding positions after passing through the shaft hole (5a), and its axis passes through the ball center of the ball holder (4); The pin body is T-shaped, which is composed of a pin head (3a) and a pin rod (3b); The pin head (3a) is a short cylinder, and its outer diameter is equal to or less than the inner diameter of the outer pin hole (2a) on the pin hole (2), and it is located in the outer pin hole (2a); The pin rod (3b) is a cylinder, and its axial length is greater than that of the pin head (3a), its outer diameter is equal to or less than the inner diameter of the inner pin hole (2b) on the pin hole (2), and its axial length is greater than that of the inner pin hole (2b), it is inserted into the inner pin hole (2b), and its inner end exposed in the barrel cavity (1a) of the sliding cylinder (1) is fixedly connected with the vertex of the ball holder (4); The screw (7) is engaged with the screw thread of the outer pin hole (2a), and is screwed into the outer hole of the outer pin hole (2a); The spring (8) has a free length greater than the axial length of the outer pin hole (2a), and is inserted into the outer pin hole (2a), and its inner end is in contact with the outer end surface of the pin head (3a), and its outer end is in contact with the inner end surface of the screw (7); adjusting the depth of the screw (7) into the outer pin hole (2a) can change the pressure of the spring (8) on the pin body; There are four massage balls (5) in the barrel cavity (1a) of the sliding cylinder (1); Two rail devices are installed in the two slide rail holes (9) on the sliding cylinder (1); The rail device installed in any one of the two slide rail holes (9) contains a ball holder (10), a ball (11) and a slide rail (12); The ball holder (10) is a strip-shaped plate, and its width is equal to or less than the width of the slide rail hole (9), and its length is equal to or less than the axial length of the slide rail hole (9), and a plurality of balls (11) are movably mounted on it in the axial direction, and the plurality of balls (11) cannot fall off from it; Two ball holders (10) without the bottom surface of the exposed ball (11) are fixedly connected with the upper hole wall and the lower hole wall of the slide rail hole (9), respectively; The slide rail (12) is a strip-shaped plate, and its cross section is rectangular, but its upper surface or lower surface is an arc-shaped ball groove (12a), and its width is less than the width of the slide rail hole (9), and its height is less than the height of the slide rail hole (9), and its length is greater than the axial length of the slide rail hole (9), and it is inserted into the slide rail hole (9), and its two ends respectively extend outward from the two ends of the sliding cylinder (1), and the ball grooves (12a) on its upper and lower surfaces are in movable contact with the balls (11) on the two ball holders (10), respectively; Two slide rails (12) are installed on the sliding cylinder (1); The power and transmission device contains a motor (16), a gear (17) and a rack (18); The rack (18) is a long strip-shaped plate, its cross section is rectangular, its width is equal to or less than the width of the rack hole (15) on the slide cylinder (1), its height is equal to or less than the height of the rack hole (15), its length is equal to the length of the slide rail (12), it is inserted into the rack hole (15), the rack teeth on it are upward, and its two ends respectively extend outward from the two ends of the slide cylinder (1); The motor (16) has a working voltage of direct current safety voltage, it is installed in the electric appliance cavity (13) on the slide cylinder (1), its base (16a) is fixedly connected to the cavity bottom of the electric appliance cavity (13), and the gear (17) is fixedly sleeved on the shaft (16b) of the motor (16); the gear teeth on the gear (17) are in mesh with the rack teeth on the rack (18); The end ring (23) is a thick-walled short cylinder, its outer diameter is greater than the outer diameter of the slide cylinder (1), its inner diameter is equal to the inner diameter of the slide cylinder (1), its axial length is less than the axial length of the slide cylinder (1), it is made of non-toxic plastic, and the lower part is fixedly connected with the ring seat (24); The axes of the two end rings (23) coincide with the axis of the slide cylinder (1), and the slide cylinder (1) is located between the two end rings (23); The two end rings (23) are fixedly connected with the two slide rails (12) and the two ends of the rack (18) penetrating through the slide cylinder (1) respectively; The bottom plate (25) is a rectangular plate, its longitudinal length is equal to or greater than the distance between the two end rings (23), its transverse width is equal to or greater than the outer diameter of the end ring (23), and the upper surfaces near the two ends are fixedly connected with the lower surfaces of the ring seats (24) on the two end rings (23) respectively; The control device comprises reed switches (20), a slide carriage (21), magnets (22), a relay, a switch and a power supply; The two reed switches (20) are fixed in the two reed switch cavities (19) on the slide cylinder (1) respectively; The slide carriage (21) is vertically sleeved on the rack (18) and located on the right side of the slide cylinder (1), and can move left and right on the rack (18) on the right side of the slide cylinder (1) but cannot be separated from the rack (18); One of the two magnets (22) is fixedly connected to the right side surface of the end ring (23) on the left side of the slide cylinder (1), and the other magnet (22) is fixedly connected to the left side surface of the slide carriage (21); the two magnets (22) and the two reed switches (20) are located on the same horizontal straight line; The relay is fixedly installed in the electric appliance cavity (13) of the slide cylinder (1); The power supply is externally connected to 220-volt alternating current, and outputs a voltage of direct current safety voltage; The two reed switches (20), the relay, the power supply, the switch and the winding of the motor (16) constitute a control circuit. When the switch is turned on, the slide cylinder (1) moves to the left, and when the dry reed (20) on the left of the slide cylinder (1) approaches the magnet (22) on the left, the dry reed (20) is triggered by the magnet (22), the relay switches the current direction through the motor (16), so that the slide cylinder (1) moves to the right; when the slide cylinder (1) moves to the right, and when the dry reed (20) on the right of the slide cylinder (1) approaches the magnet (22) installed on the slide frame (21), the dry reed (20) is triggered by the magnet (22), the relay switches the current direction through the motor (16), so that the slide cylinder (1) moves to the left; when the switch is turned off, the slide cylinder (1) stops moving; The massage program of the massager is as follows: The arm or leg is inserted into the left end ring (23) and then extended to the right after passing through the cylinder cavity (1a) of the slide cylinder (1); the power supply is connected to 220V AC power, the switch is turned on, and the slide cylinder (1) moves back and forth along the arm or leg, while the four massage balls (5) in the cylinder cavity (1a) roll back and forth on the arm or leg contacted thereby, thereby achieving the massage effect; finally, the switch is turned off, the massage is stopped, and the arm or leg is withdrawn.

2. The arm and leg massager according to claim 1, characterized in that: The size of the arm and leg massager needs to have multiple specifications.

3. The arm and leg massager according to claim 1, characterized in that: When the arm is massaged by the arm and leg massager, the arm needs to wear a tight sleeve; when the leg is massaged by the arm and leg massager, the leg needs to wear a tight leg cylinder.

Images