Abdominal massager

Abstract

The invention relates to a kind of abdomen massager, including fixed disc (1), fixed shaft (2), carousel device, massage device, power and transmission device, push disc device and machine shell (20). Massage ball (15) gradually rotates outwardly on abdomen along helical line after starting from approaching navel, and returns to the vicinity of navel again, so it is constantly circulated; relative height of massage ball (15) can be adjusted, and different requirements of each person to massage pressure can be met; there is no electric shock danger, and there is no danger of gear damaging skin; compact structure, reasonable design, strong and durable; mechanical massage replaces artificial massage, reduces the labor intensity of operator, is favorable to strengthen people's physique, and is favorable to paraplegic patient early recovery.

Description

Technical Field

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

[0002] My wife suffered her second stroke. She was saved by the hospital, but she has been paralyzed ever since, with stiff limbs. Without abdominal massage, her severe indigestion will not only be difficult to improve, but will also endanger her life. I massage her several times a day, sometimes bending over, sometimes leaning forward—it's very tiring, considering I'm over 80 myself.

[0003] There are millions of paralyzed patients in the world. How wonderful it would be if mechanical massage could replace manual massage. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an abdominal massager that can replace manual massage.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] An abdominal massager includes a fixed plate, a fixed shaft, a rotating plate device, a massage device, a power and transmission device, a push plate device, and a housing.

[0007] The plate is a horizontal disc with a main hole, side holes and edge holes.

[0008] The axis of the main hole coincides with the axis of the fixed plate.

[0009] The edge hole is located near the edge of the fixed plate, and its axis is parallel to the axis of the fixed plate.

[0010] The side hole is located between the main hole and the side hole, and the distance between it and the main hole is less than the distance between it and the side hole. Its axis is parallel to the axis of the fixed plate.

[0011] The fixed shaft is inserted into the main hole of the fixed plate and is fixedly connected to the fixed plate. Its axis coincides with the axis of the fixed plate. Its upper end face is flush with the upper surface of the fixed plate, and its lower end extends downward from the lower surface of the fixed plate. A circular groove is opened on the circumferential surface near its lower end.

[0012] The turntable device includes a turntable, an inner sleeve, an upper gear, and a support ring.

[0013] The turntable is a horizontal disc with an outer diameter smaller than that of the fixed disc, and it has a window and a turntable shaft hole.

[0014] The axis of the turntable shaft hole coincides with the axis of the turntable, and its inner diameter is larger than the outer diameter of the fixed shaft.

[0015] The window is a rectangular hole with its axis along the radial direction of the turntable. Its radial length is less than the radius of the turntable. Its outer end is close to the edge of the turntable, and its inner end is close to the turntable shaft hole.

[0016] The inner sleeve has an inner diameter equal to or greater than the outer diameter of the fixed shaft, and its axial length is less than the length of the fixed shaft extending downward. It is movably fitted on the outer circumferential surface of the downwardly extending end of the fixed shaft. Its upper end face is close to the lower surface of the fixed disk, and its lower end is inserted into the turntable shaft hole of the turntable. Its axis coincides with the axis of the turntable, and it is fixedly connected to the turntable. Its lower end face is flush with the lower surface of the turntable.

[0017] The upper gear is a horizontal gear with an outer diameter smaller than that of the turntable and an axial thickness less than 1 / 4 of the axial length of the inner sleeve. It is fixedly mounted on the outer circumferential surface of the upper end of the inner sleeve, with its axis coinciding with the axis of the inner sleeve and its upper surface flush with the upper end face of the inner sleeve.

[0018] The retaining ring is movable and locked in the slot at the lower end of the fixed shaft, and it cannot move axially, thus preventing the inner sleeve from falling downwards.

[0019] The massage device includes a slider, contact blocks, a ball frame, a massage ball, a ball shaft, and a spring.

[0020] The slider is a horizontal rectangular block with a vertical slider hole and a side groove on each side.

[0021] The side groove has a rectangular cross-section, a vertical bottom surface, and the distance between its upper and lower groove walls is equal to or greater than the axial thickness of the turntable.

[0022] The distance between the bottom surfaces of the two side grooves on the slider is equal to or less than the lateral width of the window hole on the turntable, and they respectively engage with the turntable on both sides of the window hole; the slider can slide freely along the window hole, but cannot detach from the window hole.

[0023] The contact block has an inverted right-angled triangle cross section, but its inclined surface is an arc-shaped surface. Its horizontal width is equal to half the horizontal width of the window opening, and its vertical bottom surface is fixedly connected to the inner end surface on the right side of the slider.

[0024] When the slider is located at the inner end of the window, the distance between the vertex of the contact block and the fixed axis is S; when the slider is located at the outer end of the window, the distance between the vertex of the contact block and the fixed axis is L; the maximum sliding stroke of the slider on the window is LS; LS is selected in the range of 7 to 10 centimeters.

[0025] Two springs are located on either side of the slider, in two spring grooves on the upper surface of the turntable, and neither spring protrudes from the upper surface of the turntable. Their outer ends are fixedly connected to the outer ends of the slider on both sides, and their inner ends are fixedly connected to the bottom surfaces of the corresponding spring grooves. They are always in an extended state.

[0026] The ball frame is a vertical cylinder with an outer diameter equal to the inner diameter of the slider hole. It is screwed into the slider hole, and its upper thread meshes with the upper thread of the slider hole. Its lower part is a semi-spherical cavity.

[0027] The massage ball has an outer diameter smaller than the inner diameter of the ball cavity, and has a horizontal ball shaft hole with the axis of the ball shaft hole passing through its center.

[0028] The ball shaft has an outer diameter smaller than the inner diameter of the ball shaft hole and a length greater than the inner diameter of the ball cavity. After passing through the ball shaft hole, its two ends are fixedly connected to the cavity wall of the ball cavity, and its axis passes through the center of the ball cavity.

[0029] When massaging the abdomen, the massage ball comes into contact with the abdomen.

[0030] The power and transmission device includes a side shaft, reduction gear, transmission gear, electric motor, power gear, and power source.

[0031] The motor operates on a DC safe voltage. Its shaft passes vertically upward through the hole on the top of the fixed plate and extends upward from the top surface of the fixed plate, where it is fixedly connected to the lower surface of the fixed plate at the corresponding position.

[0032] The power supply is an isolated power supply with an input voltage of 220 volts AC and an output voltage of a safe DC voltage. It supplies power to the motor in a controlled manner and is fixedly installed on the lower surface of the stator. It and the motor are located on opposite sides of the stator shaft.

[0033] The side shaft is vertically installed in the side hole of the fixed plate. Its axis is parallel to the axis of the fixed plate. It can rotate freely around the axis, but it cannot move axially. Its upper end extends upward from the upper surface of the fixed plate, and its lower end extends downward from the lower surface of the fixed plate.

[0034] The power gear, which is a horizontal pinion, is fixedly mounted on the upwardly extending end of the machine shaft, and its axis coincides with the axis of the machine shaft.

[0035] The reduction gear has an outer diameter larger than that of the power gear, and a number of teeth larger than that of the power gear. It is fixedly mounted on the upwardly extending end of the side shaft, with its axis coinciding with the axis of the side shaft. The teeth on the reduction gear mesh with the teeth on the power gear.

[0036] The transmission gear has an outer diameter smaller than that of the reduction gear, a number of teeth smaller than that of the reduction gear, and an axial thickness equal to or greater than twice the axial thickness of the upper gear. It is fixedly mounted on the downwardly extending end of the side shaft, with its axis coinciding with the axis of the side shaft. The upper gear teeth mesh with the upper gear teeth. When the motor is working, the rotation speed of the upper gear is selected within the range of 180° to 540° per second, that is, the number of rotations per second that the turntable drives the massage ball to massage the abdomen is selected within the range of 0.5 to 1.5 rotations per second.

[0037] The pusher device includes an outer sleeve, a lower gear, and a pusher plate.

[0038] The outer sleeve has an inner diameter equal to or greater than the outer diameter of the inner sleeve. It is fitted onto the outer circumferential surface of the inner sleeve, and its axis coincides with the axis of the inner sleeve. Its upper end face is close to the lower surface of the upper gear, and its lower end rests on the upper surface of the turntable. It can rotate freely around the axis.

[0039] The lower gear is a horizontal gear with an outer diameter equal to that of the upper gear, an axial thickness equal to that of the upper gear, and a number of teeth less than that of the upper gear. It is fixedly mounted on the outer circumferential surface of the upper end of the outer sleeve, with its axis coinciding with the axis of the outer sleeve. Its upper surface is flush with the upper end face of the outer sleeve, and its teeth mesh with the teeth of the lower part of the transmission gear.

[0040] The pusher is a horizontal spiral disc with a pusher shaft hole. Its outer circumference is formed by a spiral surface, a longitudinal surface, and a transverse surface.

[0041] The axis of the push plate shaft hole is perpendicular to the surface of the push plate, and its inner diameter is equal to the outer diameter of the outer sleeve. The lower end of the outer sleeve is inserted into the hole, and its axis coincides with the axis of the outer sleeve. The outer sleeve is fixedly connected to the push plate, and the lower end of the outer sleeve extends downward from the lower surface of the push plate.

[0042] The spiral surface has a spiral that encircles the axis of the push plate shaft hole by more than half a turn. The distance between its inner end and the axis of the push plate shaft hole is S, and the distance between its outer end and the axis of the push plate shaft hole is approximately equal to L, but less than L.

[0043] The inner end of the vertical surface is fixedly connected to the right end of the horizontal surface, and the vertical surface and the horizontal surface are perpendicular to each other; the outer end of the vertical surface is smoothly and fixedly connected to the outer end of the spiral surface; the left end of the horizontal surface is fixedly connected to the inner end of the spiral surface; when the slider is located at the inner end of the window hole on the turntable, and the vertex of the contact block contacts the inner end of the spiral surface, the vertical surface is located on the right side of the slider, and is close to and parallel to the right side surface of the slider.

[0044] The transmission gear drives the upper gear to rotate 360° clockwise, and at the same time, the transmission gear drives the lower gear to rotate 360°+θ clockwise; that is, the turntable rotates 360° clockwise, and at the same time, the push plate rotates 360°+θ clockwise.

[0045] For ease of calculation, θ may be 30°, 45°, 60°, or 90°.

[0046] The upper gear rotates 360 / θ turns clockwise, while the lower gear rotates 1+360 / θ turns clockwise; that is, the turntable rotates 360θθ turns clockwise, while the push plate rotates 1+360 / θ turns clockwise.

[0047] The turntable is placed on the abdomen. In the initial state, the slider is located at the inner end of the window, and the apex of the contact block is in contact with the inner end of the spiral surface. At this time, the massage ball mounted on the slider is in contact with the abdomen near the navel. Each time the turntable rotates once, the spiral surface on the push plate pushes the apex of the contact block outward along the window by (LS)θ / 360. When the turntable is about to complete its 360 / θ rotation, the push plate is also about to complete its 1+360 / θ rotation. At this time, the apex of the contact block contacts the outer end of the spiral surface, and the slider approaches the outer end of the window. At the same time, the massage ball contacts the abdomen furthest from the navel; when the turntable completes its 360 / θ revolutions, the push plate also completes its 1+360 / θ revolutions. At this point, the two springs pull the slider back to its initial state along the longitudinal plane, and the massage ball contacts the abdomen near the navel again. From the initial state to the completion of the 360 / θ revolutions, the massage ball rolls and massages the abdomen along a spiral line from near the navel outwards for 360 / θ revolutions, and then quickly returns to the abdomen near the navel, thus continuously cycling.

[0048] The housing is a round box, but the turntable and the massage ball protrude from its bottom. Its inner diameter is equal to the outer diameter of the fixed plate, and its box wall is fixedly connected to the circumferential surface of the fixed plate.

[0049] To avoid damaging the abdominal skin, the person being massaged should wear a tight-fitting top when using this abdominal massager.

[0050] Mechanical massage replaces manual massage, greatly reducing the labor intensity of massage, which is beneficial to improving people's physical fitness and helping paralyzed patients recover as soon as possible.

[0051] With this structure, the lower gear has an outer diameter equal to that of the upper gear, but fewer teeth. Since both the upper and lower gears are driven by the same transmission gear, the lower gear rotates at a higher speed than the upper gear. This is one of the key innovations of this invention.

[0052] With this structure, since the upper gear and the turntable are mounted on the inner sleeve, and the lower gear and the pusher are mounted on the outer sleeve, and since the outer sleeve is fitted onto the inner sleeve, the lower gear rotates at a speed greater than the upper gear, therefore the pusher rotates at a speed greater than the turntable. This is the second key innovation of this invention.

[0053] With this structure, the outer circumference of the push plate is formed by a spiral surface, a longitudinal surface, and a transverse surface. Since the spiral surface encircles the axis of the push plate's shaft hole by more than half a circle, when the push plate rotates, this spiral surface can push the contact block and drive the slider, causing the massage ball to gradually move away from the navel. The massage ball can then rotate and massage the abdomen along a spiral line. Starting near the navel, the push plate rotates 1+360 / θ times, and then the massage ball quickly returns to near the navel, thus continuously cycling. This is the third key innovation of this invention.

[0054] With this structure, the relative height of the ball frame can be adjusted because the threads on the ball frame and the threads on the slider hole mesh with each other, which means the relative height of the massage balls can be adjusted, thus meeting the different requirements of each person for the amount of massage pressure.

[0055] With this structure, the power supply is isolated and its output voltage is a safe DC voltage. Therefore, there is no risk of electric shock when using the abdominal massager to massage the abdomen.

[0056] With this structure, except for the turntable and massage balls which protrude from the bottom of the casing, all other components are hidden inside the casing, eliminating the risk of gears damaging the skin and effectively protecting each component.

[0057] With this structure, the structure is compact, the design is reasonable, and it is sturdy and durable. Attached Figure Description

[0058] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0059] Figure 1 This is a top-down view of the center plate.

[0060] Figure 2 It is along Figure 1 A schematic diagram of the vertical cross-section of line AA.

[0061] Figure 3 This is a top-down view of the push plate and turntable in their initial state when the abdominal massager is massaging the abdomen, with the massage ball located near the navel.

[0062] Figure 4 It is a push plate and a turntable from Figure 3 Starting from the position shown, the turntable rotates 360°, and the push plate rotates 360°+θ. This is a top-view diagram of the push plate and turntable; at this point, the massage ball is relatively... Figure 3 The time was shifted outward by (LS)θ / 360, and θ in the figure is 60°.

[0063] Figure 5 It is a push plate and a turntable from Figure 3 The diagram shows a top view of the turntable and push plate, starting from the position shown, when the turntable is about to complete its 360 / θ revolution and the push plate is about to complete its 1+360 / θ revolution. In the diagram, θ is 60°.

[0064] Figure 6 This is a schematic diagram of the vertical cross-section of the slider. Detailed Implementation

[0065] like Figures 1 to 6 As shown in the figures, an abdominal massager includes a fixed plate 1, a fixed shaft 2, a turntable device, a massage device, a power and transmission device, a push plate device, and a housing 20.

[0066] like Figure 1 As shown, the fixed plate 1 is a horizontal disc with a main hole 1a, a side hole 1b and a side hole 1c.

[0067] like Figure 1 , Figure 2 As shown, the axis of the main hole 1a coincides with the axis of the fixed plate 1.

[0068] like Figure 1 As shown, the side hole 1c is close to the edge of the fixed plate 1, and its axis is parallel to the axis of the fixed plate 1.

[0069] like Figure 1 As shown, the side hole 1b is located between the main hole 1a and the side hole 1c. The distance between the side hole 1b and the main hole 1a is less than the distance between the side hole 1b and the side hole 1c. Its axis is parallel to the axis of the fixed plate 1.

[0070] like Figure 1 , Figure 2 As shown, the fixed shaft 2 is inserted into the main hole 1a of the fixed plate 1 and is fixedly connected to the fixed plate 1. Its axis coincides with the axis of the fixed plate 1. Its upper end face is flush with the upper surface of the fixed plate 1. Its lower end extends downward from the lower surface of the fixed plate 1. A circular groove is opened on the circumferential surface near its lower end.

[0071] like Figure 2 As shown, the turntable device includes a turntable 6, an inner sleeve 4, an upper gear 5, and a support ring 3.

[0072] like Figure 2 , Figure 3 As shown, the turntable 6 is a horizontal disc with an outer diameter smaller than that of the fixed disc 1, and it has a window hole 6a and a turntable shaft hole 6b.

[0073] like Figure 2 As shown, the axis of the turntable shaft hole 6b coincides with the axis of the turntable 6, and its inner diameter is larger than the outer diameter of the fixed shaft 2.

[0074] like Figure 3 As shown, the window hole 6a is a rectangular hole with its axis along the radial direction of the turntable 6. Its radial length is less than the radius of the turntable 6. Its outer end is close to the edge of the turntable 6, and its inner end is close to the turntable shaft hole 6b.

[0075] like Figure 2 , Figure 3 As shown, the inner sleeve 4 has an inner diameter equal to or greater than the outer diameter of the fixed shaft 2, and its axial length is less than the length of the fixed shaft 2 extending downward. It is movably fitted on the outer circumferential surface of the downwardly extending end of the fixed shaft 2. Its upper end face is close to the lower surface of the fixed disk 1, and its lower end is inserted into the turntable shaft hole 6b of the turntable 6. Its axis coincides with the axis of the turntable 6, and it is fixedly connected to the turntable 6. Its lower end face is flush with the lower surface of the turntable 6.

[0076] like Figure 2 , Figure 3 As shown, the upper gear 5 is a horizontal gear with an outer diameter smaller than that of the turntable 6 and an axial thickness smaller than 1 / 4 of the axial length of the inner sleeve 4. It is fixedly mounted on the outer circumferential surface of the upper end of the inner sleeve 4, with its axis coinciding with the axis of the inner sleeve 4 and its upper surface flush with the upper end face of the inner sleeve 4.

[0077] like Figure 2 As shown, the support ring 3 is movably locked in the slot at the lower end of the fixed shaft 2, and it cannot move axially, thus preventing the inner sleeve 4 from falling downwards.

[0078] like Figure 3 , Figure 6 As shown, the massage device includes a slider 15, a contact block 21, a ball frame 16, a massage ball 17, a ball shaft 18, and a spring 19.

[0079] like Figure 3 , Figure 6 As shown, the slider 15 is a horizontal rectangular block with a vertical slider hole 15a and a side groove 15b on each side.

[0080] like Figure 6 As shown, the side groove 15b has a rectangular cross-section, a vertical bottom surface, and the distance between its upper and lower groove walls is equal to or greater than the axial thickness of the turntable 6.

[0081] like Figure 3 , Figure 6As shown, the distance between the bottom surfaces of the two side grooves 15b on the slider 15 is equal to or less than the lateral width of the window hole 6a on the turntable 6, and they respectively engage with the turntable 6 on both sides of the window hole 6a; the slider 15 can slide freely along the window hole 6a, but cannot disengage from the window hole 6a.

[0082] like Figure 3 As shown, the contact block 21 has an inverted right-angled triangle cross section, but its inclined surface is an arc surface. Its horizontal width is equal to half the horizontal width of the window 6a, and its vertical bottom surface is fixedly connected to the inner end surface on the right side of the slider 15.

[0083] like Figure 3 As shown, when the slider 15 is located at the inner end of the window 6a, the distance between the vertex of the contact block 21 and the axis of the fixed axis 2 is S; when the slider 15 is located at the outer end of the window 6a, the distance between the vertex of the contact block 21 and the axis of the fixed axis 2 is L; the maximum sliding stroke of the slider 15 on the window 6a is LS; the LS is selected in the range of 7 to 10 cm.

[0084] like Figure 3 As shown, two springs 19 are located on both sides of the slider 15 and are respectively located in two spring grooves on the upper surface of the turntable 6. Neither of them protrudes from the upper surface of the turntable 6. Their outer ends are fixedly connected to the outer ends of the two sides of the slider 15, and their inner ends are fixedly connected to the bottom surface of the two spring grooves at the corresponding positions. They are always in an extended state.

[0085] like Figure 3 , Figure 6 As shown, the ball holder 16 is a vertical cylinder with an outer diameter equal to the inner diameter of the slider hole 15a. It is screwed into the slider hole 15a, and its upper thread meshes with the upper thread of the slider hole 15a. Its lower part is a semi-spherical ball cavity 16a.

[0086] like Figure 6 As shown, the massage ball 17 has an outer diameter smaller than the inner diameter of the ball cavity 16a, and has a horizontal ball shaft hole 17a, the axis of which passes through its center.

[0087] like Figure 6 As shown, the outer diameter of the ball shaft 18 is smaller than the inner diameter of the ball shaft hole 17a, and its length is greater than the inner diameter of the ball cavity 16a. After passing through the ball shaft hole 17a, its two ends are fixedly connected to the cavity wall of the ball cavity 16a, and its axis passes through the center of the ball cavity 16a.

[0088] When massaging the abdomen, the massage ball 17 comes into contact with the abdomen.

[0089] like Figure 1 , Figure 2As shown, the power and transmission device includes a side shaft 10, a reduction gear 11, a transmission gear 12, a motor 13, a power gear 14, and a power source.

[0090] like Figure 1 , Figure 2 As shown, the motor 13 operates at a DC safe voltage. Its shaft 13a extends vertically upward through the upper hole 1c of the fixed plate 1 and extends upward from the upper surface of the fixed plate 1, and is fixedly connected to the lower surface of the fixed plate 1 at the corresponding position.

[0091] like Figure 2 As shown, the power supply is an isolated power supply with an input voltage of 220 volts AC and an output voltage of a safe DC voltage. It supplies power to the motor 13 under control and is fixedly installed on the lower surface of the fixed plate 1. It and the motor 13 are located on opposite sides of the fixed shaft 2.

[0092] like Figure 1 , Figure 2 As shown, the side shaft 10 is vertically installed in the side hole 1b of the fixed plate 1. Its axis is parallel to the axis of the fixed plate 1. It can rotate freely around the axis, but it cannot move along the axial direction. Its upper end extends upward from the upper surface of the fixed plate 1, and its lower end extends downward from the lower surface of the fixed plate 1.

[0093] like Figure 1 , Figure 2 As shown, the power gear 14 is a horizontal pinion, which is fixedly mounted on the upwardly extended end of the machine shaft 13a, and its axis coincides with the axis of the machine shaft 13a.

[0094] like Figure 1 , Figure 2 As shown, the reduction gear 11 has an outer diameter larger than that of the power gear 14, and its number of teeth is greater than that of the power gear 14. It is fixedly mounted on the upwardly extending end of the side shaft 10, and its axis coincides with the axis of the side shaft 10. The teeth on it mesh with the teeth on the power gear 14.

[0095] like Figure 2 As shown, the transmission gear 12 has an outer diameter smaller than that of the reduction gear 11, a number of teeth smaller than that of the reduction gear 11, and an axial thickness equal to or greater than twice the axial thickness of the upper gear 5. It is fixedly mounted on the downwardly extending end of the side shaft 10, with its axis coinciding with the axis of the side shaft 10. The upper gear teeth mesh with the gear teeth of the upper gear 5. When the motor 13 is working, the rotation speed of the upper gear 5 is selected within the range of 180° to 540° per second. That is, the number of rotations per second that the turntable 6 drives the massage ball 17 to rotate and massage the abdomen is selected within the range of 0.5 to 1.5 rotations per second.

[0096] like Figure 2, Figure 3 As shown, the pusher device includes an outer sleeve 7, a lower gear 8, and a pusher 9.

[0097] like Figure 2 , Figure 3 As shown, the outer sleeve 7 has an inner diameter equal to or greater than the outer diameter of the inner sleeve 4. It is fitted onto the outer circumferential surface of the inner sleeve 4, and its axis coincides with the axis of the inner sleeve 4. Its upper end face is close to the lower surface of the upper gear 5, and its lower end rests on the upper surface of the turntable 6. It can rotate freely around the axis.

[0098] like Figure 2 As shown, the lower gear 8 is a horizontal gear with an outer diameter equal to that of the upper gear 5, an axial thickness equal to that of the upper gear 5, and a number of teeth less than that of the upper gear 5. It is fixedly mounted on the outer circumferential surface of the upper end of the outer sleeve 7, with its axis coinciding with the axis of the outer sleeve 7. Its upper surface is flush with the upper end face of the outer sleeve 7, and its teeth mesh with the teeth of the lower part of the transmission gear 12.

[0099] like Figure 2 , Figure 3 As shown, the pusher 9 is a horizontal spiral disk with a pusher shaft hole 9a. Its outer circumference is formed by a spiral surface 9b, a longitudinal surface 9c, and a transverse surface 9d.

[0100] like Figure 2 , Figure 3 As shown, the axis of the push plate shaft hole 9a is perpendicular to the surface of the push plate 9, and its inner diameter is equal to the outer diameter of the outer sleeve 7. The lower end of the outer sleeve 7 is inserted into its hole, and its axis coincides with the axis of the outer sleeve 7. The outer sleeve 7 is fixedly connected to the push plate 9, and the lower end of the outer sleeve 7 extends downward from the lower surface of the push plate 9.

[0101] like Figure 3 As shown, the spiral surface 9b spirals around the axis of the push plate shaft hole 9a for more than half a turn. The distance between its inner end and the axis of the push plate shaft hole 9a is S, and the distance between its outer end and the axis of the push plate shaft hole 9a is approximately equal to L, but less than L.

[0102] like Figure 3 As shown, the inner end of the vertical surface 9c is fixedly connected to the right end of the horizontal surface 9d, and the vertical surface 9c and the horizontal surface 9d are perpendicular to each other; the outer end of the vertical surface 9c is smoothly and fixedly connected to the outer end of the spiral surface 9b; the left end of the horizontal surface 9d is fixedly connected to the inner end of the spiral surface 9b; when the slider 15 is located at the inner end of the window hole 6a on the turntable 6, and the vertex of the contact block 21 is in contact with the inner end of the spiral surface 9b, the vertical surface 9c is located on the right side of the slider 15, close to the right side of the slider 15, and parallel to the right side of the slider 15.

[0103] like Figure 2 , Figure 4 As shown, the transmission gear 12 drives the upper gear 5 to rotate 360° clockwise, and at the same time, the transmission gear 12 drives the lower gear 8 to rotate 360°+θ clockwise; that is, the turntable 6 rotates 360° clockwise, and at the same time, the push plate 9 rotates 360°+θ clockwise.

[0104] For ease of calculation, θ may be 30°, 45°, 60°, or 90°.

[0105] like Figure 3 As shown, the upper gear 5 rotates 360 / θ turns clockwise, while the lower gear 8 rotates 1+360 / θ turns clockwise; that is, the turntable 6 rotates 360 / θ turns clockwise, while the push plate 9 rotates 1+360 / θ turns clockwise.

[0106] like Figure 3 As shown, the turntable 6 is placed on the abdomen. In the initial state, the slider 15 is located at the inner end of the window 6a, and the apex of the contact block 21 is in contact with the inner end of the spiral surface 9b. At this time, the massage ball 17 mounted on the slider 15 is in contact with the abdomen near the navel. Figure 4 As shown, for every revolution of the turntable 6, the spiral surface 9b on the push plate 9 pushes the vertex of the contact block 21 outward along the window 6a by (LS)θ / 360; Figure 5 As shown, when the turntable 6 is about to complete its 360 / θ revolutions, the push plate 9 is also about to complete its 1+360 / θ revolutions. At this time, the apex of the contact block 21 contacts the outer end of the spiral surface 9b, the slider 15 approaches the outer end of the window 6a, and simultaneously, the massage ball 17 is closest to the navel on the abdomen. Figure 3 As shown, when the turntable 6 completes its 360 / θ revolutions, the push plate 9 also completes its 1+360 / θ revolutions. At this time, the two springs 19 pull the slider 15, which quickly returns to its initial state along the longitudinal surface 9c. At the same time, the massage ball 17 comes into contact with the abdomen near the navel. During the process from the initial state to the completion of the 360 / θ revolutions, the massage ball 17 rolls and massages the abdomen along a spiral line from near the navel outwards for 360 / θ revolutions. Then, the massage ball 17 quickly returns to the abdomen near the navel, and this cycle continues.

[0107] like Figure 2 As shown, the housing 20 is a round box shape, but the turntable 6 and the massage ball 17 protrude from its lower part. Its inner diameter is equal to the outer diameter of the fixed plate 1, and its box wall is fixedly connected to the circumferential surface of the fixed plate 1.

[0108] To avoid damaging the abdominal skin, the person being massaged should wear a tight-fitting top when using this abdominal massager.

[0109] Mechanical massage replaces manual massage, greatly reducing the labor intensity of massage, which is beneficial to improving people's physical fitness and helping paralyzed patients recover as soon as possible.

[0110] 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 abdominal massager, characterized in that: The abdominal massager includes a fixed plate (1), a fixed shaft (2), a turntable device, a massage device, a power and transmission device, a push plate device, and a housing (20); The fixed plate (1) is a horizontal disc with a main hole (1a), a side hole (1b) and a side hole (1c). The axis of the main hole (1a) coincides with the axis of the fixed plate (1); The side hole (1c) is close to the edge of the fixed plate (1), and its axis is parallel to the axis of the fixed plate (1); The side hole (1b) is located between the main hole (1a) and the side hole (1c), and the distance between it and the main hole (1a) is less than the distance between it and the side hole (1c). Its axis is parallel to the axis of the fixed plate (1). The fixed shaft (2) is inserted into the main hole (1a) of the fixed plate (1), and is fixedly connected to the fixed plate (1). Its axis coincides with the axis of the fixed plate (1), its upper end face is flush with the upper surface of the fixed plate (1), its lower end extends downward from the lower surface of the fixed plate (1), and a circular groove is opened on the circumferential surface near its lower end. The turntable device includes a turntable (6), an inner sleeve (4), an upper gear (5), and a support ring (3); The turntable (6) is a horizontal disc with an outer diameter smaller than that of the fixed disc (1). It has a window hole (6a) and a turntable shaft hole (6b). The axis of the turntable shaft hole (6b) coincides with the axis of the turntable (6), and its inner diameter is larger than the outer diameter of the fixed shaft (2). The window hole (6a) is a rectangular hole with its axis along the radial direction of the turntable (6), its radial length being less than the radius of the turntable (6), its outer end being close to the edge of the turntable (6), and its inner end being close to the turntable shaft hole (6b). The inner sleeve (4) has an inner diameter equal to or greater than the outer diameter of the fixed shaft (2), and its axial length is less than the length of the fixed shaft (2) extending downward. It is movably fitted on the outer circumferential surface of the downward-extending end of the fixed shaft (2). Its upper end face is close to the lower surface of the fixed disk (1), and its lower end is inserted into the turntable shaft hole (6b) of the turntable (6). Its axis coincides with the axis of the turntable (6), and it is fixedly connected to the turntable (6). Its lower end face is flush with the lower surface of the turntable (6). The upper gear (5) is a horizontal gear with an outer diameter smaller than that of the turntable (6) and an axial thickness smaller than 1 / 4 of the axial length of the inner sleeve (4). It is fixedly mounted on the outer circumferential surface of the upper end of the inner sleeve (4), with its axis coinciding with the axis of the inner sleeve (4) and its upper surface flush with the upper end face of the inner sleeve (4). The support ring (3) is movably locked in the slot at the lower end of the fixed shaft (2), and it cannot move axially, thus preventing the inner sleeve (4) from falling downward. The massage device includes a slider (15), a contact block (21), a ball frame (16), a massage ball (17), a ball shaft (18), and a spring (19); The slider (15) is a horizontal rectangular block with a vertical slider hole (15a) on it and a side groove (15b) on each side. The side groove (15b) has a rectangular cross-section, a vertical bottom surface, and the distance between its upper and lower groove walls is equal to or greater than the axial thickness of the turntable (6). The distance between the bottom surfaces of the two side grooves (15b) on the slider (15) is equal to or less than the lateral width of the window hole (6a) on the turntable (6), and they respectively engage with the turntable (6) on both sides of the window hole (6a); the slider (15) can slide freely along the window hole (6a), but cannot detach from the window hole (6a). The contact block (21) has an inverted right triangle cross section, but its inclined surface is an arc surface. Its horizontal width is equal to half the horizontal width of the window hole (6a), and its vertical bottom surface is fixedly connected to the inner end surface on the right side of the slider (15). When the slider (15) is located at the inner end of the window (6a), the distance between the vertex of the contact block (21) and the axis of the fixed axis (2) is S; When the slider (15) is located at the outer end of the window (6a), the distance between the vertex of the contact block (21) and the axis of the fixed axis (2) is L; the maximum sliding stroke of the slider (15) on the window (6a) is LS; LS is selected in the range of 7 to 10 cm; Two springs (19) are located on both sides of the slider (15) and in two spring grooves on the upper surface of the turntable (6). Neither of them protrudes from the upper surface of the turntable (6). Their outer ends are fixedly connected to the outer ends of both sides of the slider (15), and their inner ends are fixedly connected to the bottom surface of the two spring grooves at the corresponding positions. They are always in an extended state. The ball frame (16) is a vertical cylinder with an outer diameter equal to the inner diameter of the slider hole (15a). It is screwed into the slider hole (15a) and its upper thread meshes with the upper thread of the slider hole (15a). Its lower part is a ball cavity (16a) that is more than half a sphere. The massage ball (17) has an outer diameter smaller than the inner diameter of the ball cavity (16a) and has a horizontal ball shaft hole (17a) on it, the axis of which passes through its center. The ball shaft (18) has an outer diameter smaller than the inner diameter of the ball shaft hole (17a) and a length greater than the inner diameter of the ball cavity (16a). After passing through the ball shaft hole (17a), its two ends are fixedly connected to the cavity wall of the ball cavity (16a), and its axis passes through the center of the ball cavity (16a). When massaging the abdomen, the massage ball (17) comes into contact with the abdomen; The power and transmission device includes a side shaft (10), a reduction gear (11), a transmission gear (12), an electric motor (13), a power gear (14), and a power source; The motor (13) operates at a DC safe voltage. Its shaft (13a) passes vertically upward through the upper hole (1c) of the fixed plate (1) and extends upward from the upper surface of the fixed plate (1), and is fixedly connected to the lower surface of the fixed plate (1) at the corresponding position. The power supply is an isolated power supply with an input voltage of AC 220V and an output voltage of DC safe voltage. It supplies power to the motor (13) under control. It is fixedly installed on the lower surface of the fixed plate (1), and it and the motor (13) are located on opposite sides of the fixed shaft (2). The side shaft (10) is vertically installed in the side hole (1b) of the fixed plate (1). Its axis is parallel to the axis of the fixed plate (1). It can rotate freely around the axis, but it cannot move along the axis. Its upper end extends upward from the upper surface of the fixed plate (1), and its lower end extends downward from the lower surface of the fixed plate (1). The power gear (14) is a horizontal pinion, which is fixedly mounted on the upwardly extended end of the machine shaft (13a), and its axis coincides with the axis of the machine shaft (13a). The reduction gear (11) has an outer diameter larger than that of the power gear (14) and a number of teeth larger than that of the power gear (14). It is fixedly mounted on the upwardly extending end of the side shaft (10), and its axis coincides with the axis of the side shaft (10). The teeth on it mesh with the teeth on the power gear (14). The transmission gear (12) has an outer diameter smaller than that of the reduction gear (11), a number of teeth smaller than that of the reduction gear (11), and an axial thickness equal to or greater than twice the axial thickness of the upper gear (5). It is fixedly mounted on the downwardly extending end of the side shaft (10), and its axis coincides with the axis of the side shaft (10). The upper gear teeth mesh with the gear teeth of the upper gear (5). When the motor (13) is working, the rotation degree of the upper gear (5) is selected within the range of 180° to 540° per second. That is, the number of rotations per second of the turntable (6) driving the massage ball (17) on the abdomen is selected within the range of 0.5 to 1.5 rotations. The pusher device includes an outer sleeve (7), a lower gear (8), and a pusher (9); The outer sleeve (7) has an inner diameter equal to or greater than the outer diameter of the inner sleeve (4). It is fitted on the outer circumferential surface of the inner sleeve (4). Its axis coincides with the axis of the inner sleeve (4). Its upper end face is close to the lower surface of the upper gear (5). Its lower end rests on the upper surface of the turntable (6). It can rotate freely around the axis. The lower gear (8) is a horizontal gear with an outer diameter equal to that of the upper gear (5), an axial thickness equal to that of the upper gear (5), and a number of teeth less than that of the upper gear (5). It is fixedly mounted on the outer circumferential surface of the upper end of the outer sleeve (7), with its axis coinciding with the axis of the outer sleeve (7). Its upper surface is flush with the upper end face of the outer sleeve (7), and its teeth mesh with the teeth of the lower part of the transmission gear (12). The push plate (9) is a horizontal spiral plate with a push plate shaft hole (9a) on it. Its outer circumference is surrounded by a spiral surface (9b), a longitudinal surface (9c) and a transverse surface (9d). The axis of the push plate shaft hole (9a) is perpendicular to the disk surface of the push plate (9), and its inner diameter is equal to the outer diameter of the outer sleeve (7). The lower end of the outer sleeve (7) is inserted into its hole, and its axis coincides with the axis of the outer sleeve (7). The outer sleeve (7) is fixedly connected to the push plate (9), and the lower end of the outer sleeve (7) extends downward from the lower surface of the push plate (9). The spiral surface (9b) spirals around the axis of the push plate shaft hole (9a) for more than half a turn. The distance between its inner end and the axis of the push plate shaft hole (9a) is S, and the distance between its outer end and the axis of the push plate shaft hole (9a) is approximately equal to L, but less than L. The inner end of the longitudinal surface (9c) is fixedly connected to the right end of the transverse surface (9d), and the longitudinal surface (9c) and the transverse surface (9d) are perpendicular to each other; the outer end of the longitudinal surface (9c) is smoothly and fixedly connected to the outer end of the spiral surface (9b); the left end of the transverse surface (9d) is fixedly connected to the inner end of the spiral surface (9b); when the slider (15) is located at the inner end of the window hole (6a) on the turntable (6), and the vertex of the contact block (21) is in contact with the inner end of the spiral surface (9b), the longitudinal surface (9c) is located on the right side of the slider (15), and is close to the right side of the slider (15), and parallel to the right side of the slider (15); The transmission gear (12) drives the upper gear (5) to rotate 360° clockwise, and at the same time, the transmission gear (12) drives the lower gear (8) to rotate 360°+θ clockwise; that is, the turntable (6) rotates 360° clockwise, and at the same time, the push plate (9) rotates 360°+θ clockwise. For ease of calculation, θ may be 30°, 45°, 60°, or 90°. The upper gear (5) rotates 360 / θ turns clockwise, while the lower gear (8) rotates 1+360 / θ turns clockwise; that is, the turntable (6) rotates 360 / θ turns clockwise, while the push plate (9) rotates 1+360 / θ turns clockwise. The turntable (6) is placed on the abdomen. In the initial state, the slider (15) is located at the inner end of the window (6a), and the vertex of the contact block (21) is in contact with the inner end of the spiral surface (9b). At this time, the massage ball (17) installed on the slider (15) is in contact with the abdomen near the navel. Every time the turntable (6) rotates once, the spiral surface (9b) on the push plate (9) pushes the vertex of the contact block (21) outward along the window (6a) by LS)θ / 360. When the turntable (6) is about to complete the 360 / θ rotation, the push plate (9) is also about to complete the 1+360 / θ rotation. At this time, the vertex of the contact block (21) is in contact with the outer end of the spiral surface (9b), and the slider (15) is in contact with the abdomen. 5) Approaching the outer end of the window (6a), at the same time, the abdomen contacted by the massage ball (17) is closest to the navel; when the turntable (6) completes the 360 / θ revolution, the push plate (9) also completes the 1+360 / θ revolution. At this time, the two springs (19) pull the slider (15) and quickly return to the initial state along the longitudinal surface (9c). At the same time, the massage ball (17) contacts the abdomen near the navel again; during the process from the initial state to the completion of the 360 / θ revolution, the massage ball (17) rolls and massages the abdomen from near the navel outward along the spiral line for 360 / θ revolutions. Then the massage ball (17) quickly returns to the abdomen near the navel, and so on. The housing (20) is a round box, but the turntable (6) and the massage ball (17) protrude from its lower part. Its inner diameter is equal to the outer diameter of the fixed plate (1), and its box wall is fixedly connected to the circumferential surface of the fixed plate (1).

2. The abdominal massager according to claim 1, characterized in that: When using the abdominal massager to massage the abdomen, the person being massaged should wear a tight-fitting top.

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