CN113018792A - Ligament stretching trainer for physical fitness - Google Patents

Ligament stretching trainer for physical fitness Download PDF

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Publication number
CN113018792A
CN113018792A CN202110423230.9A CN202110423230A CN113018792A CN 113018792 A CN113018792 A CN 113018792A CN 202110423230 A CN202110423230 A CN 202110423230A CN 113018792 A CN113018792 A CN 113018792A
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China
Prior art keywords
arc
ligament stretching
base
circular arc
ligament
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Granted
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CN202110423230.9A
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Chinese (zh)
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CN113018792B (en
Inventor
王燕
王小妹
俞秀文
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Chaohu University
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Chaohu University
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/04Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
    • A63B23/08Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs for ankle joints
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/055Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters extension element type
    • A63B21/0552Elastic ropes or bands
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/04Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable multiple steps, i.e. more than one step per limb, e.g. steps mounted on endless loops, endless ladders

Abstract

The invention relates to the technical field of fitness equipment, in particular to a ligament stretching trainer for physical fitness, which comprises an ankle ligament stretching device and a shank fixing device, wherein the ankle ligament stretching device comprises a talus ligament stretching mechanism and a triangular ligament stretching mechanism, the talus ligament stretching mechanism comprises an arc panel with an upward opening and a pedal plate, the pedal plate is formed by integrating a base plate with an arc surface structure and a flat plate, a plurality of arc slideways are arranged on the inner side of the arc panel, the triangular ligament stretching mechanism comprises a base with an arc surface structure, a plurality of arc slide ways are arranged on the inner side of the arc of the base, the shank fixing device comprises a plurality of fixing mechanisms, the ankle ligament stretching device can play a load bearing effect of ankle ligament stretching, is used for rehabilitation training, and can control ankles to move in a safe range, avoid the too big condition that leads to the injury aggravation of ankle activity range.

Description

Ligament stretching trainer for physical fitness
Technical Field
The invention relates to the technical field of fitness equipment, in particular to a ligament stretching trainer for physical fitness.
Background
The foot is the second heart of a human body, the ankle is an important gateway for blood flow of the left foot and the right foot, the blood circulation of the lower half of the human body is smooth, the influence on the whole qi and blood circulation is great, the ankle is an important part for blood flow of the left foot and the right foot, a patient cannot move for several weeks or even months after ankle ligaments are damaged, the motor function is seriously damaged after the ligaments are repaired, and the movement state can be achieved after a period of rehabilitation.
Ligaments around the ankle are particularly numerous, such as anterior talus ligament, posterior talus ligament and triangular ligament, and to running fan, body-building fan and sportsman, the ankle injured condition is very frequent, needs the motion of warming up, and open the ankle activity completely, especially when being injured but being in rehabilitation training to the ankle, need inject to the range of ankle activity, avoid the range too big, aggravate the injury.
Disclosure of Invention
The invention aims to provide a ligament stretching trainer for physical fitness aiming at the defects in the prior art.
In order to solve the above problems, the present invention provides the following technical solutions:
a ligament stretching trainer for physical fitness comprises an ankle ligament stretching device and a shank fixing device, wherein the shank fixing device is erected above the ankle ligament stretching device through a support frame, the ankle ligament stretching device comprises a talus ligament stretching mechanism and a triangular ligament stretching mechanism, the talus ligament stretching mechanism comprises a circular arc panel with an upward opening and a pedal plate, the pedal plate is formed by a base plate and a plate which are of an arc surface structure in an integrated mode, the central line of the base plate is overlapped with the central line of the circular arc panel, a plurality of arc slideways are arranged on the inner side of the circular arc panel, a first sliding block in sliding fit with the arc slideways is fixedly arranged on the middle section of the outer side of the base plate, the triangular ligament stretching mechanism comprises a base of the arc surface structure, the opening of the base is upward, the central line of the base is perpendicular to the central line of the circular arc panel, and a plurality of arc sliding rails parallel to the, the arc panel is in sliding fit with the arc slide rail through the second slide block, and the shank fixing device comprises a plurality of fixing mechanisms which are distributed at intervals from top to bottom.
Further, arc panel inboard is provided with tensile subassembly, tensile subassembly is including fixed mounting at the inboard center of arc panel fixed head and two first elasticity ropes all with the fixed head bolt, and the one end that fixed head was kept away from to two first elasticity ropes is installed at base plate outside both ends through the connector respectively, the base plate is provided with the opening of dodging that is used for dodging first elasticity rope, the base is located arc panel outside middle section and installs the bolt joint and two connecting seats that are located respectively under the base both ends, and two connecting seats all are through second elasticity rope and bolt joint elastic connection, the base is provided with the logical groove that is used for dodging the second elasticity rope.
Further, the arc panel circular arc inboard is provided with a plurality of gag lever post and a plurality of spacing circular arc strip, and the radian direction of all spacing circular arc strips is parallel with the radian direction of circular arc panel, and all spacing circular arc strips are provided with the spacing hole of a plurality of along self radian direction interval, the central line of gag lever post is parallel with the central line of circular arc panel, and a plurality of gag lever post passes all spacing circular arc strips simultaneously.
Further, the circular arc inboard of base is provided with a plurality of peg graft pole and a plurality of grafting circular arc strip, and the radian direction of all grafting circular arc strips is parallel with the radian direction of base, and all grafting circular arc strips are provided with a plurality of spliced eye along self radian direction interval, the central line of peg graft pole is parallel with the central line of base, and a plurality of peg graft pole passes all grafting circular arc strips simultaneously.
Furthermore, the fixing mechanism comprises a clamping mechanism and a horizontally arranged V-shaped frame, the V-shaped frame is in sliding fit with the support frame through a horizontal rod, the clamping mechanism comprises a V-shaped push-pull plate, a rack and two clamping rods, one ends of the two clamping rods are respectively hinged with two ends of the V-shaped frame through vertical rotating shafts, the plane where the V-shaped push-pull plate is located is parallel to the plane where the V-shaped frame is located, middle sections of the clamping rods are both vertically provided with middle shafts, the V-shaped push-pull plate is provided with two push-pull strip holes distributed in a splayed shape, the two middle shafts are respectively inserted into the push-pull strip holes, one end of the rack is horizontally arranged in the middle section of the V-shaped push-pull plate, and the length direction of the rack.
Furthermore, shank fixing device is still including the rotation axis and a plurality of ring gear subassembly of vertical setting, and the ring gear subassembly is including a plurality of spacing tooth, outer ring gear and soft rubber ring, and all spacing teeth distribute in the outside of rotation axis around the angular difference such as self axis, and the inboard of outer ring gear distributes around the angular difference such as self axis has a plurality of tooth's socket, and the inboard and the spacing tooth bonding cooperation of soft rubber ring, the outside and the inboard bonding cooperation of outer ring gear of soft rubber ring, outer ring gear and rack toothing.
Further, be provided with on the support frame and cramp the portion, cramp the portion including cramp the drum and with cramp drum outside screw-thread fit's lock nut, cramp the drum outside and be the round table surface structure, be provided with the external screw thread with lock nut screw-thread fit outside the cramping drum, the tip of cramping the drum is provided with a plurality of and dodges the breach.
Furthermore, an elastic arc plate is arranged on the inner side of the V-shaped frame.
The ligament stretching trainer for physical fitness provided by the invention has the following beneficial effects and advantages:
one is as follows: the ankle ligament stretching device can only play a role of moving the ankle under the condition of not using the stretching assembly, can play a load bearing effect of stretching the ankle ligament under the condition of using the stretching assembly, and can be used for rehabilitation training after being injured.
The second step is as follows: the ankle ligament stretching device disclosed by the invention is matched with the limiting circular arc strip and the inserting circular arc strip, so that the rotation angles of the circular arc panel and the base plate can be controlled, the ankle can be controlled to move within a safe range, and the condition that the injury is aggravated due to overlarge ankle moving amplitude is avoided.
And thirdly: the shank fixing device can adjust the clamping force according to different thicknesses of different parts of the shank, completely fix the shank, and ensure that only the ankle exerts force by matching with the ankle ligament stretching device, thereby improving the ankle ligament training effect.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
fig. 3 is a schematic perspective view of an ankle ligament stretching device according to the first embodiment of the present invention;
FIG. 4 is an enlarged view of FIG. 3 at A;
fig. 5 is a schematic perspective view of the ankle ligament stretching device according to the second embodiment of the present invention;
FIG. 6 is a schematic perspective view of the footrest and tensioning assembly of the present invention;
FIG. 7 is a schematic perspective view of a circular arc panel and a second slider according to the present invention;
FIG. 8 is a schematic perspective view of a base according to the present invention;
fig. 9 is a first schematic perspective view of the ankle ligament stretching device and the support frame according to the present invention;
FIG. 10 is an enlarged view of FIG. 9 at B;
FIG. 11 is a schematic perspective view of an ankle ligament stretching device and a support frame according to the present invention;
fig. 12 is a third schematic perspective view of the ankle ligament stretching device and the support frame according to the present invention;
FIG. 13 is an enlarged view at C of FIG. 12;
FIG. 14 is an exploded perspective view of the ring gear assembly and rotating shaft of the present invention;
FIG. 15 is an enlarged view at D of FIG. 14;
FIG. 16 is an enlarged view at E of FIG. 14;
description of reference numerals:
1. an ankle ligament stretching device; 11. a V-shaped frame; 12. a horizontal bar; 13. a V-shaped push-pull plate; 14. a rack; 15. a clamping rod; 16. push-pull bar holes; 17. a vertical rotating shaft; 18. a middle shaft; 19. an elastic arc plate; 2. a shank fixation device; 3. a support frame; 4. a triangular ligament stretching mechanism; 41. a circular arc panel; 42. a foot pedal; 43. a substrate; 44. a circular arc slideway; 45. a first slider; 46. a first elastic cord; 47. a connector; 48. a fixed head; 49. a flat plate; 5. a talar ligament tensioning mechanism; 51. a base; 52. a circular arc slide rail; 53. a second slider; 54. a bolted joint; 55. a connecting seat; 56. a second elastic cord; 57. a through groove; 6. a limiting rod; 61. limiting the arc strip; 62. a limiting hole; 63. a plug rod; 64. inserting the arc strip; 65. inserting holes; 7. a ring gear assembly; 71. a rotating shaft; 72. limiting teeth; 73. an outer ring gear; 74. a soft rubber ring; 75. a tooth socket; 76. a tightening part; 77. a lock nut; 78. avoiding the gap.
Detailed Description
The following detailed description of specific embodiments of the present invention is made with reference to the accompanying drawings and examples:
referring to fig. 1 to 16, the ligament stretching training device for physical training comprises an ankle ligament stretching device 1 and a lower leg fixing device 2, the lower leg fixing device 2 is erected above the ankle ligament stretching device 1 through a support frame 3, the ankle ligament stretching device 1 comprises a talus ligament stretching mechanism 5 and a triangular ligament stretching mechanism 4, the talus ligament stretching mechanism 5 comprises an arc panel 41 with an upward opening and a pedal plate 42, the pedal plate 42 is formed by a base plate 43 and a plate 49 which are of an arc structure integrally, a central line of the base plate 43 coincides with a central line of the arc panel 41, a plurality of arc slideways 44 are arranged on the inner side of the arc panel 41, a first slider 45 which is in sliding fit with the arc slideways 44 is fixedly arranged on the middle section of the outer side of the base plate 43, the triangular ligament stretching mechanism 4 comprises a base 51 with an arc structure, the opening of the base 51 faces upward and the central line of the base 51 is perpendicular to the central line of the arc panel 41, the circular arc inboard of base 51 is provided with the circular arc slide rail 52 that a plurality of and self radian direction are parallel, circular arc panel 41 passes through second slider 53 and circular arc slide rail 52 sliding fit, shank fixing device 2 is including the fixed establishment of a plurality of top-down interval distribution, all fixed establishment fix the different positions of shank respectively, then the foot is stepped on the running-board 42 of ankle ligament stretching device 1, be provided with V-arrangement antiskid line on dull and stereotyped 49, dull and stereotyped 49 both sides are provided with the elasticity lacing tape simultaneously, then carry out the ankle activity, when the ankle fore-and-aft swing, step on dull and stereotyped 49 and stereotyped and drive base plate 43 and circular arc panel 41 and rotate at circular arc panel 41's inboard, when the ankle horizontal hunting, step on dull and stereotyped 49 and stereotyped drive base plate 43 and circular arc panel 41.
The inner side of the arc panel 41 is provided with a stretching assembly, the stretching assembly comprises a fixed head 48 fixedly installed at the center of the inner side of the arc panel 41 and two first elastic ropes 46 both bolted to the fixed head 48, one ends of the two first elastic ropes 46 far away from the fixed head 48 are respectively installed at the two ends of the outer side of the base plate 43 through connectors 47, the base plate 43 is provided with an avoiding opening for avoiding the first elastic ropes 46, the base 51 is located at the middle section of the outer side of the arc panel 41 and is provided with a bolt joint 54 and two connecting seats 55 respectively located under the two ends of the base 51, the two connecting seats 55 are both elastically connected with the bolt joint 54 through second elastic ropes 56, the base 51 is provided with a through groove 57 for avoiding the second elastic ropes 56, a foot steps on the pedal plate 42 of the ligament stretching device 1, then ankle activity is performed, when the ankle swings back and forth, the flat plate 49 drives the base plate 43 to rotate at the inner side of, the first elastic rope 46 is pulled to increase the tensile strength of the anterior talar ligament and the posterior talar ligament, and when the ankle swings left and right, the treading flat plate 49 drives the base plate 43 and the arc panel 41 to slide on the inner side of the arc of the base 51. Increase the tensile strength of ankle both sides triangular ligament, can play the tensile heavy burden effect of ankle ligament, can cooperate injured back, rehabilitation training uses.
The arc panel 41 circular arc inboard is provided with the spacing circular arc strip 61 of a plurality of gag lever post 6 and a plurality of, and all spacing circular arc strips 61's radian direction is parallel with the radian direction of circular arc panel 41, and all spacing circular arc strips 61 are provided with the spacing hole 62 of a plurality of along self radian direction interval, the central line of gag lever post 6 is parallel with the central line of circular arc panel 41, and a plurality of gag lever post 6 passes all spacing circular arc strips 61 simultaneously, and gag lever post 6 inserts spacing circular arc strip 61, can restrict the gliding turned angle of base plate 43 on circular arc panel 41, can control the preceding talus ligament of ankle and the back talus ligament and move about at safe within range, avoids the ankle amplitude of motion too big, leads to hindering the condition that the tendency aggravates.
The circular arc inboard of base 51 is provided with a plurality of peg graft pole 63 and a plurality of grafting arc strip 64, and all radian directions of grafting arc strip 64 are parallel with base 51's radian direction, and all grafting arc strips 64 are provided with a plurality of spliced eye 65 along self radian direction interval, the central line of peg graft pole 63 is parallel with base 51's central line, and a plurality of peg graft pole 63 passes all grafting arc strips 64 simultaneously, and peg graft pole 63 inserts grafting arc strip 64, and restriction arc panel 41 turned angle on base 51 can control the triangular ligament of ankle both sides and move about at safe within range, and the triangular ligament amplitude of activity of avoiding the ankle is too big, leads to hindering the condition that the vigor aggravates.
The fixing mechanism comprises a clamping mechanism and a V-shaped frame 11 which is horizontally arranged, the V-shaped frame 11 is in sliding fit with the support frame 3 through a horizontal rod 12, the clamping mechanism comprises a V-shaped push-pull plate 13, a rack 14 and two clamping rods 15, one end of each of the two clamping rods 15 is hinged with two ends of the V-shaped frame 11 through a vertical rotating shaft 17, the plane where the V-shaped push-pull plate 13 is located is parallel to the plane where the V-shaped frame 11 is located, middle sections of the clamping rods 15 are vertically provided with middle shafts 18, the V-shaped push-pull plate 13 is provided with two push-pull strip holes 16 which are distributed in a splayed shape, the two middle shafts 18 are respectively inserted into the push-pull strip holes 16, one end of the rack 14 is horizontally arranged at the middle section of the V-shaped push-pull plate 13, the length direction of the rack 14 is parallel to the central line of the horizontal rod 12, the horizontal rod 12 is provided with threads, the horizontal rod, thereby adjusting the position of the V-shaped frame 11.
The shank fixing device 2 further comprises a rotating shaft 71 and a plurality of gear ring components 7 which are vertically arranged, each gear ring component 7 comprises a plurality of limiting teeth 72, an outer gear ring 73 and a soft rubber ring 74, all the limiting teeth 72 are distributed on the outer side of the rotating shaft 71 in an equal angle difference mode around the axis of the gear ring, a plurality of tooth sockets 75 are distributed on the inner side of the outer gear ring 73 in an equal angle difference mode around the axis of the gear ring, the inner side of the soft rubber ring 74 is in bonding fit with the limiting teeth 72, the outer side of the soft rubber ring 74 is in bonding fit with the inner side of the outer gear ring 73, the outer gear ring 73 is meshed with the gear racks 14, the rotating shaft 71 is rotated, the rotating shaft 71 drives all the gear ring components 7 to rotate, all the gear racks 14 move towards the V-shaped frame 11, all the V-shaped push-pull plates 13 are driven to move towards the V-shaped frame 11, two middle shafts 18, thereby clamping the lower leg.
Because the thickness difference of the lower leg is large, the moving distances of the racks 14 towards the lower leg are different, when the rotating shaft 71 is rotated, all the racks 14 are driven to move towards the lower leg, the upper fixing mechanism firstly clamps the lower leg, at the moment, the rotating shaft 71 continues to rotate, the upper rack 14 cannot move, the soft rubber ring 74 of the gear ring component 7 is extruded, the racks 14 are not moved, the gear ring idles until the lower rack 14 drives the corresponding clamping rod 15 to clamp the lower leg, and the rotating shaft 71 stops rotating.
Be provided with on support frame 3 and hoop portion 76, hoop portion 76 including hoop the drum and with hoop drum outside screw-thread fit's lock nut 77, hoop the drum outside for the mesa structure, hoop the drum outside be provided with lock nut 77 screw-thread fit's external screw thread, the tip of hoop the drum is provided with a plurality of and dodges breach 78, screws up lock nut 77 and can lock rotation axis 71 for rotation axis 71 is unable rotatory, screws up lock nut 77, and rotation axis 71 can rotate.
The inner side of the V-shaped frame 11 is provided with an elastic arc plate 19, so that the lower leg is prevented from being leaned on the V-shaped frame 11 and being excessively extruded.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims (8)

1. The utility model provides a ligament stretching training ware that sports fitness used which characterized in that: comprises an ankle ligament stretching device (1) and a shank fixing device (2), wherein the shank fixing device (2) is erected above the ankle ligament stretching device (1) through a support frame (3), the ankle ligament stretching device (1) comprises a talus ligament stretching mechanism (5) and a triangular ligament stretching mechanism (4), the talus ligament stretching mechanism (5) comprises an arc panel (41) with an upward opening and a pedal plate (42), the pedal plate (42) is integrally formed by a base plate (43) and a flat plate (49) of an arc surface structure, the central line of the base plate (43) is superposed with the central line of the arc panel (41), the inner side of the arc panel (41) is provided with a plurality of arc slideways (44), the outer side of the base plate (43) is fixedly provided with a first sliding block (45) which is in sliding fit with the arc slideways (44), the triangular ligament stretching mechanism (4) comprises a base (51) of the arc surface structure, the base (51) opening is up and the central line is perpendicular with the central line of arc panel (41), and the circular arc inboard of base (51) is provided with a plurality of and the parallel circular arc slide rail (52) of self radian direction, and arc panel (41) pass through second slider (53) and circular arc slide rail (52) sliding fit, shank fixing device (2) are including the fixed establishment of a plurality of top-down interval distribution.
2. A ligament stretching trainer for physical fitness according to claim 1, wherein: the inner side of the arc panel (41) is provided with a stretching assembly, the stretching assembly comprises a fixed head (48) fixedly arranged at the center of the inner side of the arc panel (41) and two first elastic ropes (46) which are bolted with the fixed head (48), one ends of the two first elastic ropes (46) far away from the fixed head (48) are respectively arranged at the two ends of the outer side of the base plate (43) through a connector (47), the base plate (43) is provided with an avoidance opening for avoiding the first elastic rope (46), the middle section of the base (51) positioned at the outer side of the arc panel (41) is provided with a bolt joint (54) and two connecting seats (55) respectively positioned under the two ends of the base (51), the two connecting seats (55) are elastically connected with the bolt joint (54) through a second elastic rope (56), the base (51) is provided with a through groove (57) for avoiding the second elastic rope (56).
3. A ligament stretching trainer for physical fitness according to claim 1, wherein: the arc panel (41) circular arc inboard is provided with a plurality of gag lever post (6) and a plurality of spacing circular arc strip (61), and the radian direction of all spacing circular arc strips (61) is parallel with the radian direction of circular arc panel (41), and all spacing circular arc strips (61) are provided with a plurality of spacing hole (62) along self radian direction interval, the central line of gag lever post (6) is parallel with the central line of circular arc panel (41), and a plurality of gag lever post (6) pass all spacing circular arc strips (61) simultaneously.
4. A ligament stretching trainer for physical fitness according to claim 1, wherein: the arc inboard of base (51) is provided with a plurality of peg graft pole (63) and a plurality of grafting arc strip (64), and the radian direction of all grafting arc strips (64) is parallel with the radian direction of base (51), and all grafting arc strips (64) are provided with a plurality of spliced eye (65) along self radian direction interval, the central line of peg graft pole (63) is parallel with the central line of base (51), and all grafting arc strips (64) are passed simultaneously in a plurality of peg graft pole (63).
5. A ligament stretching trainer for physical fitness according to claim 1, wherein: the fixing mechanism comprises a clamping mechanism and a V-shaped frame (11) which is horizontally arranged, the V-shaped frame (11) is in sliding fit with the supporting frame (3) through a horizontal rod (12), the clamping mechanism comprises a V-shaped push-pull plate (13), a rack (14) and two clamping rods (15), one end of each clamping rod (15) is hinged to the two ends of the V-shaped frame (11) through a vertical rotating shaft (17), the plane of the V-shaped push-pull plate (13) is parallel to the plane of the V-shaped frame (11), middle sections of the clamping rods (15) are vertically provided with middle shafts (18), the V-shaped push-pull plate (13) is provided with two push-pull strip holes (16) distributed in a splayed shape, the two middle shafts (18) are inserted into the push-pull strip holes (16) respectively, one end of the rack (14) is horizontally arranged in the middle section of the V-shaped push-pull plate (13), and the length direction of the rack (14) is parallel to the central line of the horizontal rod (12).
6. A ligament stretching trainer for physical fitness according to claim 5, wherein: shank fixing device (2) are still including rotation axis (71) and a plurality of ring gear subassembly (7) of vertical setting, ring gear subassembly (7) are including a plurality of spacing tooth (72), outer ring gear (73) and soft rubber ring (74), all spacing tooth (72) distribute in the outside of rotation axis (71) around the equal angular difference of self axis, the inboard of outer ring gear (73) is around the equal angular difference of self axis and is had a plurality of tooth's socket (75), the inboard and the spacing tooth (72) bonding cooperation of soft rubber ring (74), the outside and the inboard bonding cooperation of outer ring gear (73) of soft rubber ring (74), outer ring gear (73) and rack (14) meshing.
7. A ligament stretching trainer for physical fitness according to claim 6, wherein: be provided with on support frame (3) and cramp portion (76), cramp portion (76) including cramp the drum and with cramp drum outside screw-thread fit's lock nut (77), the cramp drum outside is the round table face structure, is provided with the external screw thread with lock nut (77) screw-thread fit outside the cramp drum, and the tip of cramping the drum is provided with a plurality of and dodges breach (78).
8. A ligament stretching trainer for physical fitness according to claim 5, wherein: an elastic arc plate (19) is arranged on the inner side of the V-shaped frame (11).
CN202110423230.9A 2021-04-20 2021-04-20 Ligament stretching trainer for physical fitness Active CN113018792B (en)

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FR2641183A1 (en) * 1988-09-28 1990-07-06 Heurte Alain Apparatus for examination and reeducation of the ankle
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