[0028] like Figure 1-8 As shown, an arm restorer for rehabilitation training includes a base 1, a vertical rod 2, a horizontal rod 3 and two guide wheels 4, the vertical rod 2 is fixedly connected with the left end of the upper surface of the base 1, the horizontal rod 3 is connected to the vertical rod 2 The upper end of the base 1 is fixedly connected, the two guide wheels 4 are respectively installed on the left and right ends of the cross bar 3, the front and rear ends of the upper surface of the base 1 are fixedly installed with a support plate 5, and a guide cylinder 6 is arranged between the two support plates 5. The lower ends of the guide cylinders 6 are respectively hinged with the two support plates 5, the pedals 7 are fixedly installed at the rotating shafts of the guide cylinders 6 and the support plates 5, and the weight distribution mechanism 8 is fixedly installed at the lower end of the guide cylinder 6. The interior of the cylinder 6 is communicated, the interior of the weight distribution mechanism 8 is provided with a counterweight mechanism 9, the upper end of the counterweight mechanism 9 is slidably connected with the guide cylinder 6, the lower end of the counterweight mechanism 9 is fixedly installed with a pressure rod 10, and the pressure rod 10 is connected with the counterweight mechanism 9. The lower end of the weight mechanism 9 is slidably connected, and the upper surface of the base 1 is located below the weight distribution mechanism 8 and is fixedly installed with an arc plate 11. The arc plate 11 has a U-shaped structure, and the arc plate 11 is a symmetrical structure. Both ends are upwardly parabolic, and are not on the same center as the rotation axis of the guide cylinder 6 .
[0029] The upper end of the counterweight mechanism 9 is fixedly installed with a pull rope 13 , and one end of the pull rope 13 away from the counterweight mechanism 9 penetrates the guide cylinder 6 and is then connected to the two guide wheels 4 for transmission. The pull rod 14 and the guide wheel 4 can achieve the effect of extending the pull rope 13 .
[0030] The weight distribution mechanism 8 includes a bottom plate 801, three limit rings 802 and two counterweight blocks A803. The three limit rings 802 are all located above the bottom plate 801, and the bottom limit ring 802 is fixedly connected to the bottom plate 801 to limit the load. The left end of the upper surface of the position ring 802 is fixedly installed with an arc-shaped limit sleeve 804, the arc-shaped limit sleeve 804 is a semicircular structure, and the longitudinal section of the arc-shaped limit sleeve 804 is a U-shaped structure. The limit ring 802 is fixedly connected with the arc limit sleeve 804, the limit rod 805 is fixedly installed on the front and rear sides of the inner wall of the limit ring 802, the arc limit sleeve 804 and the limit ring 802 are arranged concentrically and have the same radius, and the guide cylinder 6 The two connecting rods 15 are fixedly connected to the base 1 , the two counterweight blocks A803 are fixedly connected to the bottom plate 801 , the counterweight mechanism 9 is inserted into the three limit rings 802 , and the bottom surface of the bottom plate 801 is fixedly sleeved with a ferrule 16. The pressure rod 10 is inserted into the inside of the ferrule 16 and is slidably connected with it, and the structure of the pressure rod 10 will not rotate relative to the ferrule 16 .
[0031]The counterweight mechanism 9 includes a sleeve 901, three sliding sleeves 902, three counterweight plates 903 and a top rod 904. The sleeve 901 penetrates through the three limit rings 802 and the bottom plate 801. The sleeve 901 is provided with two left and right through holes. The sliding groove 905 is matched with the limit rod 805. The three sliding sleeves 902 are respectively sleeved on the outside of the sleeve 901. There are two sliders 906 , the two ends of the two sliders 906 penetrate through the sleeve 901 and then are fixedly connected to the two lower sliding sleeves 902 respectively. To achieve the effect, two semicircular sleeves 907 are clamped on the outer right sides of the three sliding sleeves 902, the weight plate 903 is located between the two semicircular sleeves 907, the weight plate 903 is rotatably connected with the sliding sleeve 902, and the weight plate 903 The right end of the upper surface of the upper surface is fixedly installed with a counterweight B908, the counterweight plate 903 is a semi-circular structure, the counterweight B908 is located at the position of the bisector centerline of the counterweight plate 903, and the left side of the counterweight plate 903 is at the front and rear ends. There is a limit slot 909 that penetrates up and down, the upper end of the ejector rod 904 is inserted into the inside of the sleeve 901, the ejector rod 904 penetrates through the two sliders 906, and the outside of the ejector rod 904 is located below the slider 906. In the position ring 910, a spring 911 is sleeved between the slider 906 and the limit ring 910 where the ejector rod 904 is located below. The rod 10 is fixedly connected with the lower end of the ejector rod 904, the upper end of the sleeve 901 is slidably connected with the guide cylinder 6, the guide cylinder 6 is a semicircular structure, the upper end of the sleeve 901 is fixedly sleeved with a sliding sleeve 902, and the sliding sleeve 902 is connected with the guide The barrel 6 is slidably connected, and one end of the pull cord 13 is fixedly connected to the upper end of the sleeve 901 .
[0032] During use, the pull rod 14 is pulled to drive the pull rope 13 to pull the sleeve 901, and the sleeve 901 rises with three counterweight plates 903 when rising, so as to achieve the effect of stretching the arm and exercising the arm. When it is necessary to change the counterweight plate When the number of 903, step on the pedal 7, at this time the guide cylinder 6 is inclined with the weight distribution mechanism 8, and the upper end of the guide cylinder 6 is inclined to the left. 11 and the rotation position of the guide cylinder 6 are not on the same center of the circle, so when the roller 12 moves forward, the roller 12 is gradually subjected to pressure to press the pressure rod 10. When the pressure rod 10 presses the ejector rod 904, the ejector rod 904 will first bring the most The lower counterweight plate 903 rises. When the counterweight plate 903 rises between the two limit rings 802, due to the action of gravity, the counterweight plate 903 starts to rotate into the arc limit sleeve 804, and the arc limit sleeve 804 The special shape can limit the weight plate 903, and at the same time the weight plate 903 loses the limitation of the limit rod 805 and the two semicircular sleeves 907, when the sleeve 901 is forced to move upward again, there will be one less weight plate 903. If you continue to step on the pedal 7, the top rod 904 will continue to push upward to drive the spring 911 to compress, and the upper limit ring 910 can push the middle slider 906. At this time, the middle weight plate 903 will move to two positions. In the same way, the weight plate 903 will move between the arc limit sleeves 804. On the contrary, when the weight plate 903 is added, the pedal 7 is hooked, and the weight plate 903 will return to the two semicircles due to gravity. Set between 907.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the invention is defined by the appended claims and their equivalents.
