Frame type leg lifting machine

Abstract

The invention discloses a frame-type leg lifting machine which comprises a main frame, two driving rods, a leg lifting mechanism, a leg lifting mechanism, a leg lifting mechanism, a leg lifting mechanism, a leg lifting mechanism, a leg lifting mechanism, a leg lifting mechanism, a leg lifting mechanism, a leg lifting mechanism, a leg lifting mechanism and a leg lifting mechanism. The upper ends of the two driving rods are pivoted to the two rear vertical frames on the rear side of the main frame respectively and swing front and back around respective pivoting points, a pivoting part is arranged at the upper end of each driving rod, and a pedal is pivoted to the lower end of each driving rod; the linkage assembly is configured to be used for conducting linkage on the swing movement of the two driving rods so that the two driving rods can conduct linkage swing movement in a front-back interactive mode relative to the main frame. The square frame type main frame structure comprises the lower bottom frame and the upper supporting frame, so that the frame type main frame structure is more stable and does not topple leftwards and rightwards when a sporter raises legs interactively, non-users are effectively isolated from approaching, and the use safety of the sporter is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fitness equipment, in particular to a frame-type leg-lifting machine. Background Art

[0002] The existing document TWM469091U (application date: March 18, 2013) discloses a leg lifting machine. The leg lifting machine of this technical solution is similar to most existing leg lifting machines in that the overall structure is designed to be relatively narrow and long, and there is a problem of insufficient stability in support to a certain extent. During the leg lifting training, the operator may lose balance due to improper use and there is a risk of tipping to the left or right. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a frame-type leg-lifting machine, which mainly solves the technical problem that the prior leg-lifting machine is prone to tipping risk due to improper use to a certain extent.

[0004] To achieve the above object, the present invention is achieved through the following technical solutions: A frame-type leg-raising machine, comprising: A main frame, the main frame includes a lower base frame, an upper support frame, and two front frames and two rear frames respectively connected to the lower base frame and the front and rear sides of the upper support frame, and a handrail frame is connected to the upper support frame; Two driving rods, the driving rods having an upper end and a lower end, the upper ends of the driving rods of the two driving rods are respectively pivotally connected to the two rear upright frames at the rear side of the main frame and swing forward and backward around their respective pivot points, the upper ends of the driving rods of the driving rods are provided with a pivoting portion, and the lower ends of the driving rods of the two driving rods are each pivotally provided with a pedal; At least one linkage assembly is configured to link the swinging motion of the two driving rods so that the two driving rods can perform a front-to-back linked swinging motion relative to the main frame.

[0005] Furthermore, the main frame is a square frame structure.

[0006] Furthermore, a first front bracket is fixedly connected to the front side of the main frame and is laterally arranged. The linkage assembly includes a swing seat and two linkage rods. The swing seat is pivotally connected to the first front bracket, and the front ends of the two linkage rods are respectively pivotally connected to the left and right sides of the swing seat, and the rear ends of the two linkage rods are respectively pivotally connected to the pivot parts at the upper ends of the driving rods on the corresponding sides.

[0007] Furthermore, a swing handle is pivotally connected to each side of the main frame, the lower ends of the two swing handles are pivotally connected to the front end of a connecting rod, and the rear ends of the two connecting rods are pivotally connected to the pivotal parts at the upper ends of the driving rods on the corresponding sides.

[0008] Furthermore, a second front bracket and a third front bracket are fixedly connected to the front side of the main frame, and pivot ears are provided on the two front frames. The frame-type leg-lifting machine also includes a transmission assembly and a magnetically controlled resistance mechanism. The transmission assembly includes a core shaft, a first bevel gear and a second bevel gear. The two ends of the core shaft are respectively pivotally connected to the corresponding pivot ears of the two front frames. The first bevel gear is connected to the core shaft, and the second bevel gear is connected to the rear side of the second front bracket and meshes with the first bevel gear. The magnetically controlled resistance mechanism includes at least a pulley, a A rotating wheel, a magnetically controlled wheel and a magnetic seat arranged corresponding to the periphery of the magnetically controlled wheel, wherein the magnetically controlled wheel is pivotally connected to the third front bracket, the magnetic seat is connected to the second front bracket, the pulley is pivotally connected to the front side of the second front bracket and is synchronously rotated with the second bevel gear on the same axis, the rotating wheel is pivotally connected to the front side of the third front bracket and is synchronously rotated with the magnetically controlled wheel on the same axis, and the pulley and the rotating wheel are jointly wrapped around a transmission belt, and the magnetically controlled resistance mechanism provides resistance to the rotational movement of the core shaft through the cooperation of the first bevel gear and the second bevel gear.

[0009] Furthermore, the frame-type leg-lifting machine also includes two swinging components, each swinging component includes at least a rear swinging rod and a front pivot member, the upper ends of the two rear swinging rods are respectively pivoted to the pivoting parts of the two driving rods, the lower ends of the two rear swinging rods are respectively pivoted to one end of a front pivot member, and the other ends of the two front pivot members are respectively fixedly connected to the two ends of the core shaft.

[0010] Furthermore, the frame-type leg-lifting machine also includes two swinging components, each swinging component includes at least a rear swing rod, a rear pivot member, a lower swing rod and a front pivot member, the two rear pivot members are respectively pivoted on the two rear frames, the upper ends of the two rear swing rods are respectively pivoted with the pivoting parts of the two driving rods, and the lower ends of the two rear swing rods are respectively pivoted with one end of the two rear pivot members, the other ends of the two rear pivot members are respectively pivoted with the rear ends of the two lower swing rods, the front ends of the two lower swing rods are respectively pivoted with one end of the two front pivot members, and the other ends of the two front pivot members are respectively fixedly connected to the two ends of the core shaft.

[0011] Furthermore, the pivoting part at the upper end of the driving rod is a wheel structure, and the linkage assembly includes four fixed pulleys which are arranged in pairs at the rear section of the lower frame, and a linkage rope is wrapped around the two pivoting parts and the four fixed pulleys.

[0012] Furthermore, a lifting mechanism for adjusting the inclination angle of the main frame is connected to the front portion of the bottom of the main frame. The lifting mechanism includes a lifting frame body, two rollers and a lifter. One end of the lifting frame body is pivotally connected to the main frame, and the two rollers are respectively connected to the other end of the lifting frame body. Both ends of the lifter are respectively pivotally connected to the main frame and the lifting frame body.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] In the frame-type leg-lifting machine described in the present invention, athletes can enter the main frame from the rear side of the frame-type leg-lifting machine, and the square frame structure includes a lower base frame and an upper support frame, which can be more stable when athletes lift their legs alternately without tipping to the left or right, and effectively isolate non-users from approaching, so as to increase the safety of athletes' use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure decomposition of the first embodiment of the present invention.

[0017] Figure 3 It is a schematic diagram of the use status of the first embodiment of the present invention.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of embodiment 3 of the present invention.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure from another angle of embodiment 3 of the present invention.

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure decomposition of the third embodiment of the present invention.

[0022] Figure 8 It is an enlarged view of the local structure of the third embodiment of the present invention.

[0023] Fig. 9 This is an enlarged view of the local structure of the third embodiment of the present invention from another angle.

[0024] Fig.10 It is a schematic diagram of the use status of the third embodiment of the present invention.

[0025] Fig.11 It is a schematic diagram of the three-dimensional structure of the fourth embodiment of the present invention.

[0026] Fig.12 It is a schematic diagram of the three-dimensional structure from another angle of embodiment 4 of the present invention.

[0027] Fig.13 It is a schematic diagram of the three-dimensional structure decomposition of the fourth embodiment of the present invention.

[0028] Fig.14 It is a schematic diagram of the use status of the fourth embodiment of the present invention.

[0029] Description of labels:

[0030] 10. Main frame, 11. Lower frame, 12. Upper support frame, 13. Front frame, 14. Rear frame, 15. Handrail frame, 16. First front frame, 17. Second front frame, 18. Third front frame, 20. Driving rod, 30. Pedal, 40. Linking assembly, 41. Swing seat, 42. Linking rod, 43. Rope, 44. Fixed pulley, 50. Swing assembly, 51. Swing rod, 52. Rear pivot, 53. Lower swing rod, 54. Front pivot, 60. Transmission assembly, 61. Core shaft, 62. First bevel gear, 63. Second bevel gear, 70. Magnetically controlled resistance mechanism, 71. Pulley, 72. Rotating wheel, 73. Magnetically controlled wheel, 74. Magnetic seat, 75. Transmission belt, 80. Lifting mechanism, 81. Lifting frame, 82. Roller, 83. Lifter, 90. Swinging grip, 91. Connecting rod, 131. Pivot ear, 201. Upper end of driving rod, 202. Lower end of driving rod, 203. Pivot portion. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Embodiment 1

[0034] Please refer to the attached Figure 1 To Attachment Figure 3 An embodiment of the present invention provides a frame-type leg raising machine, comprising: A main frame 10, which is generally in a square frame structure, includes a lower base frame 11, an upper support frame 12, and two front frames 13 and two rear frames 14 respectively connected to the lower base frame 11 and the front and rear sides of the upper support frame 12, and a handrail frame 15 is connected to the upper support frame 12; Two driving rods 20, the driving rod 20 has a driving rod upper end 201 and a driving rod lower end 202, the driving rod upper ends 201 of the two driving rods 20 are respectively pivotally connected to the two rear upright frames 14 at the rear side of the main frame 10 and swing forward and backward around their respective pivot points, the driving rod upper ends 201 of the driving rod 20 are provided with a pivoting portion 203, and the driving rod lower ends 202 of the two driving rods 20 are each pivotally provided with a pedal 30; A linkage assembly 40 is configured to link the swinging motion of the two driving rods 20 so that the two driving rods 20 can perform a front-to-back linked swinging motion relative to the main frame 10 .

[0035] Please refer to the attached Figure 1 In one preferred embodiment, a first front bracket 16 which is laterally arranged is fixedly connected to the front side of the main frame 10, and the linkage assembly 40 includes a swing seat 41 and two linkage rods 42, the swing seat 41 is pivotally connected to the first front bracket 16, the front ends of the two linkage rods 42 are respectively pivotally connected to the left and right side ends of the swing seat 41, and the rear ends of the two linkage rods 42 are respectively pivotally connected to the pivoting parts 203 at the upper ends 201 of the driving rods on the corresponding sides.

[0036] Embodiment 2

[0037] Please refer to the attached Figure 4 An embodiment of the present invention provides a frame-type leg raising machine, comprising: A main frame 10, which is generally in a square frame structure, includes a lower base frame 11, an upper support frame 12, and two front frames 13 and two rear frames 14 respectively connected to the lower base frame 11 and the front and rear sides of the upper support frame 12, and a handrail frame 15 is connected to the upper support frame 12; Two driving rods 20, the driving rod 20 has a driving rod upper end 201 and a driving rod lower end 202, the driving rod upper ends 201 of the two driving rods 20 are respectively pivotally connected to the two rear upright frames 14 at the rear side of the main frame 10 and swing forward and backward around their respective pivot points, the driving rod upper ends 201 of the driving rod 20 are provided with a pivoting portion 203, and the driving rod lower ends 202 of the two driving rods 20 are each pivotally provided with a pedal 30; A linkage assembly 40 is configured to link the swinging motion of the two driving rods 20 so that the two driving rods 20 can perform a front-to-back linked swinging motion relative to the main frame 10 .

[0038] Please refer to the attached Figure 1 In one preferred embodiment, a first front bracket 16 which is laterally arranged is fixedly connected to the front side of the main frame 10, and the linkage assembly 40 includes a swing seat 41 and two linkage rods 42, the swing seat 41 is pivotally connected to the first front bracket 16, the front ends of the two linkage rods 42 are respectively pivotally connected to the left and right side ends of the swing seat 41, and the rear ends of the two linkage rods 42 are respectively pivotally connected to the pivoting parts 203 at the upper ends 201 of the driving rods on the corresponding sides.

[0039] Please refer to the attached Figure 1In one preferred embodiment, a second front bracket 17 and a third front bracket 18 are fixedly connected to the front side of the main frame 10, and pivot ears 131 are provided on the two front frames 13. The frame-type leg-lifting machine also includes a transmission assembly 60 and a magnetically controlled resistance mechanism 70. The transmission assembly 60 includes a spindle 61, a first bevel gear 62 and a second bevel gear 63. The two ends of the spindle 61 are respectively pivotally connected to the pivot ears 131 corresponding to the two front frames 13. The first bevel gear 62 is connected to the spindle 61, and the second bevel gear 63 is connected to the rear side of the second front bracket 17 and meshes with the first bevel gear 62; the magnetically controlled resistance mechanism 70 includes at least one A pulley 71, a rotating wheel 72, a magnetic control wheel 73 and a magnetic seat 74 arranged corresponding to the periphery of the magnetic control wheel 73, wherein the magnetic control wheel 73 is pivoted to the third front bracket 18, the magnetic seat 74 is connected to the second front bracket 17, the pulley 71 is pivoted to the front side of the second front bracket 17 and is synchronously rotated with the second bevel gear 63 on the same axis, the rotating wheel 72 is pivoted to the front side of the third front bracket 18 and is synchronously rotated with the magnetic control wheel 73 on the same axis, and the pulley and the rotating wheel are jointly wrapped with a transmission belt 75, and the magnetic control resistance mechanism 70 provides resistance to the rotational movement of the core shaft 61 through the cooperation of the first bevel gear 62 and the second bevel gear 63.

[0040] Please refer to the attached Figure 4 In one preferred embodiment, the frame-type leg lifting machine also includes two swinging assemblies 50, each swinging assembly 50 includes at least a rear swinging rod 51, a rear pivot member 52, a lower swinging rod 53 and a front pivot member 54, the two rear pivot members 52 are respectively pivoted on the two rear frames 14, the upper ends of the two rear swinging rods 51 are respectively pivoted with the pivoting portions 203 of the two driving rods 20, and the lower ends of the two rear swinging rods 51 are respectively pivoted with one end of the two rear pivot members 52, the other ends of the two rear pivot members 52 are respectively pivoted with the rear ends of the two lower swinging rods 53, the front ends of the two lower swinging rods 53 are respectively pivoted with one end of the two front pivot members 54, and the other ends of the two front pivot members 54 are respectively fixedly connected to the two ends of the core shaft 61.

[0041] Please refer to the attached Figure 4 In one preferred embodiment, a lifting mechanism 80 for adjusting the inclination angle of the main frame 10 is connected to the front portion of the bottom of the main frame 10. The lifting mechanism 80 includes a lifting frame body 81, two rollers 82 and a lifter 83. One end of the lifting frame body 81 is pivotally connected to the main frame 10, and the two rollers 82 are respectively connected to the other end of the lifting frame body 81. Both ends of the lifter 83 are respectively pivotally connected to the main frame 10 and the lifting frame body 81.

[0042] Embodiment 3

[0043] Please refer to the attached Figure 5 To Attachment Fig.10The only difference between this embodiment and the second embodiment is that the third embodiment adds a structure of a swing handle 90 on the basis of the second embodiment. Specifically, a swing handle 90 is pivotally connected to each side of the main frame 10, and the lower ends of the two swing handles 90 are pivotally connected to the front end of a connecting rod 91, and the rear ends of the two connecting rods 91 are pivotally connected to the pivotal parts 203 at the upper ends 201 of the driving rods on the corresponding sides.

[0044] Embodiment 4

[0045] Please refer to the attached Fig.11 To Attachment Fig.14 An embodiment of the present invention provides a frame-type leg raising machine, comprising: A main frame 10, which is generally in a square frame structure, includes a lower base frame 11, an upper support frame 12, and two front frames 13 and two rear frames 14 respectively connected to the lower base frame 11 and the front and rear sides of the upper support frame 12, and a handrail frame 15 is connected to the upper support frame 12; Two driving rods 20, the driving rod 20 has a driving rod upper end 201 and a driving rod lower end 202, the driving rod upper ends 201 of the two driving rods 20 are respectively pivotally connected to the two rear upright frames 14 at the rear side of the main frame 10 and swing forward and backward around their respective pivot points, the driving rod upper ends 201 of the driving rod 20 are provided with a pivoting portion 203, and the driving rod lower ends 202 of the two driving rods 20 are each pivotally provided with a pedal 30; A linkage assembly 40 is configured to link the swinging motion of the two driving rods 20 so that the two driving rods 20 can swing back and forth relative to the main frame 10 in a linked manner. The pivoting portion 203 at the upper end 201 of the driving rod is a wheel structure, and the linkage assembly 40 includes four fixed pulleys 44 arranged at the rear section of the lower frame 11 in pairs, and a linkage rope 43 is wrapped around the two pivoting portions 203 and the four fixed pulleys 44.

[0046] Please refer to the attached Fig.11 To Attachment Fig.14 In one preferred embodiment, the pivotal portion 203 at the upper end 201 of the driving rod is a wheel structure, and the linkage assembly 40 includes four fixed pulleys 44 which are arranged in pairs at the rear section of the lower frame 11, and a linkage rope 43 is wrapped around the two pivotal portions 203 and the four fixed pulleys 44.

[0047] Please refer to the attached Fig.11 To Attachment Fig.14In one preferred embodiment, the frame-type leg raising machine also includes two swinging assemblies 50, each swinging assembly 50 includes at least a rear swinging rod 51 and a front pivot member 54, the upper ends of the two rear swinging rods 51 are respectively pivoted to the pivoting portions 203 of the two driving rods 20, the lower ends of the two rear swinging rods 51 are respectively pivoted to one end of a front pivot member 54, and the other ends of the two front pivot members 54 are respectively fixedly connected to the two ends of the core shaft 61.

[0048] Please refer to the attached Fig.11 To Attachment Fig.14 In one preferred embodiment, a second front bracket 17 and a third front bracket 18 are fixedly connected to the front side of the main frame 10, and pivot ears 131 are provided on the two front frames 13. The frame-type leg-lifting machine also includes a transmission assembly 60 and a magnetically controlled resistance mechanism 70. The transmission assembly 60 includes a spindle 61, a first bevel gear 62 and a second bevel gear 63. The two ends of the spindle 61 are respectively pivotally connected to the pivot ears 131 corresponding to the two front frames 13. The first bevel gear 62 is connected to the spindle 61, and the second bevel gear 63 is connected to the rear side of the second front bracket 17 and meshes with the first bevel gear 62; the magnetically controlled resistance mechanism 70 includes at least one A pulley 71, a rotating wheel 72, a magnetic control wheel 73 and a magnetic seat 74 arranged corresponding to the periphery of the magnetic control wheel 73, wherein the magnetic control wheel 73 is pivoted to the third front bracket 18, the magnetic seat 74 is connected to the second front bracket 17, the pulley 71 is pivoted to the front side of the second front bracket 17 and is synchronously rotated with the second bevel gear 63 on the same axis, the rotating wheel 72 is pivoted to the front side of the third front bracket 18 and is synchronously rotated with the magnetic control wheel 73 on the same axis, and the pulley and the rotating wheel are jointly wrapped with a transmission belt 75, and the magnetic control resistance mechanism 70 provides resistance to the rotational movement of the core shaft 61 through the cooperation of the first bevel gear 62 and the second bevel gear 63.

[0049] Please refer to the attached Fig.11 To Attachment Fig.14 In one preferred embodiment, a lifting mechanism 80 for adjusting the inclination angle of the main frame 10 is connected to the front portion of the bottom of the main frame 10. The lifting mechanism 80 includes a lifting frame body 81, two rollers 82 and a lifter 83. One end of the lifting frame body 81 is pivotally connected to the main frame 10, and the two rollers 82 are respectively connected to the other end of the lifting frame body 81. Both ends of the lifter 83 are respectively pivotally connected to the main frame 10 and the lifting frame body 81.

[0050] The following is a detailed description of the use of each embodiment:

[0051] As attached Figure 1 To Attachment Figure 3In the first embodiment shown, when in use, the handrail frame 15 is held by both hands, and the two driving rods 20 are swung by stepping on the pedal 30 with both feet. At the same time, the two connecting rods 42 are swung left and right by the connecting assembly 40, so that the two driving rods 20 are swung in an arc trajectory with a front-back limit relative to each other.

[0052] As attached Figure 4 In the second embodiment shown, when in use, the two driving rods 20 are swung by stepping on the pedal 30 with both feet, so that the two driving rods 20 swing in an arc trajectory with a front-back alternating limit; at the same time, when the two driving rods 20 swing, the rear swing rod 51, the rear pivot 52, the lower swing rod 53, and the front pivot 54 are linked in sequence, so that the core shaft 61 rotates repeatedly, and then the first bevel gear 62 rotates accordingly, and sequentially drives the second bevel gear 63, the pulley 71, the rotating wheel 72, and the magnetic control wheel 73 to rotate. When the magnetic control wheel 73 rotates, the magnetic seat 74 provides magnetic resistance, and finally provides the resistance to the two driving rods 20 in reverse order through the magnetic control wheel 73; in addition, the athlete can control and adjust the lifting mechanism 80 to make the main frame 10 rise and fall, thereby changing different inclination angles.

[0053] As attached Figure 5 To Attachment Fig.10 The third embodiment shown has a structure that is basically the same as the second embodiment, except that two swing handles 90 are added. When in use, the swing handles 90 are held by both hands and the two driving rods 20 are swung by stepping on the pedal 30 with the feet. When the two driving rods 20 swing, the two swing handles 90 will also be linked to swing back and forth alternately.

[0054] As attached Fig.11 To Attachment Fig.14 In the fourth embodiment shown, when in use, the handrail frame 15 is held with both hands and the pedal 30 is stepped on with the foot. When the two driving rods 20 are swung, the two linking rods 42 are swung left and right by the linkage assembly 40, so that the two driving rods 20 are swung in an arc track with an alternating limit forward and backward movement. At the same time, when the two driving rods 20 are swung, the rope 43 is pulled to revolve around the two pivoting parts 203 and the four fixed pulleys 44, and the rear swinging rod 51 and the front pivoting member 54 are linked in sequence, so that the core shaft 61 rotates repeatedly, and then the first bevel gear 62 rotates accordingly, and the second bevel gear 63, the pulley 71, the rotating wheel 72, and the magnetic control wheel 73 are driven to rotate in sequence. At the same time, when the magnetic control wheel 73 rotates, the magnetic seat 74 provides magnetic resistance, and the resistance is simultaneously provided to the two driving rods 20 in reverse order through the magnetic control wheel 73.

[0055] It is understandable that, since no chain drive is used, the assembly efficiency is high, and the connecting rod type or steel cable type linkage assembly 40 is quick and easy to assemble, not easy to damage and easy to repair, and the component and assembly costs are low. The price of the whole machine is quite competitive and is easily favored by buyers and consumers. Athletes can enter the main frame 10 from the rear side of the frame-type leg lifting machine, and the frame-type structure, such as the lower bottom frame 11 and the upper support frame 12, can be more stable when the athletes alternately lift their legs without tipping to the left or right, and effectively isolate non-users from approaching, so as to increase the safety of the athletes.

[0056] In addition, in the second to fourth embodiments, the inertial magnetic wheel 73 is matched with the magnet-type magnetic seat 74, which has high stability and is easy to adjust and maintain, and the magnetic wheel 73 has inertia when rotating, which is a sports mode that athletes are more accustomed to using. The lifting mechanism 80 causes the main frame 10 to rise and fall to produce different tilt angles, so that the interactive leg lifting action and even the interactive arm swinging action can achieve different training intensities for the core muscle group. The steeper the tilt angle of the main frame 10, the greater the training intensity. On the contrary, the gentler the tilt angle, the smaller the training intensity.

[0057] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements do not deviate the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Claims

1. A frame-type leg-lifting machine, It is characterized in that include: A main frame (10), the main frame (10) comprising a lower frame (11), an upper support frame (12), and two front frames (13) and two rear frames (14) respectively connected to the front and rear sides of the lower frame (11) and the upper support frame (12), and a handrail frame (15) is connected to the upper support frame (12); Two driving rods (20), the driving rods (20) having a driving rod upper end (201) and a driving rod lower end (202), the driving rod upper ends (201) of the two driving rods (20) are respectively pivotally connected to two rear upright frames (14) at the rear side of the main frame (10) and swing forward and backward around their respective pivot points, the driving rod upper ends (201) of the driving rods (20) are provided with a pivoting portion (203), and the driving rod lower ends (202) of the two driving rods (20) are each pivotally provided with a pedal (30); At least one linkage assembly (40) is configured to link the swinging motion of the two driving rods (20) so that the two driving rods (20) can perform a front-to-back linked swinging motion relative to the main frame (10).

2. The frame-type leg raising machine according to claim 1, Features: The main frame (10) is a square frame structure.

3. The frame type leg raising machine according to claim 1, Features: A first front bracket (16) arranged transversely is fixedly connected to the front side of the main frame (10); the linkage assembly (40) comprises a swing seat (41) and two linkage rods (42); the swing seat (41) is pivotally connected to the first front bracket (16); the front ends of the two linkage rods (42) are respectively pivotally connected to the left and right sides of the swing seat (41); and the rear ends of the two linkage rods (42) are respectively pivotally connected to the pivoting parts (203) at the upper ends (201) of the driving rods on the corresponding sides.

4. The frame type leg raising machine according to claim 1, Features: A swing handle (90) is pivotally connected to each side of the main frame (10), the lower ends of the two swing handles (90) are pivotally connected to the front end of a connecting rod (91), and the rear ends of the two connecting rods (91) are pivotally connected to the pivoting parts (203) at the upper ends (201) of the driving rods on the corresponding sides.

5. The frame type leg raising machine according to claim 1, Features: A second front bracket (17) and a third front bracket (18) are fixedly connected to the front side of the main frame (10), and pivot ears (131) are provided on the two front frames (13). The frame-type leg-lifting machine also includes a transmission assembly (60) and a magnetically controlled resistance mechanism (70). The transmission assembly (60) includes a core shaft (61), a first bevel gear (62) and a second bevel gear (63). The two ends of the core shaft (61) are respectively pivotally connected to the corresponding pivot ears (131) of the two front frames (13). The first bevel gear (62) is connected to the core shaft (61). The second bevel gear (63) is connected to the rear side of the second front bracket (17) and meshes with the first bevel gear (62). The magnetically controlled resistance mechanism (70) includes at least one pulley (71 ), a rotating wheel (72), a magnetic control wheel (73) and a magnetic seat (74) arranged corresponding to the periphery of the magnetic control wheel (73), wherein the magnetic control wheel (73) is pivoted to the third front bracket (18), the magnetic seat (74) is connected to the second front bracket (17), the pulley (71) is pivoted to the front side of the second front bracket (17) and is synchronously rotated with the second bevel gear (63) on the same axis, the rotating wheel (72) is pivoted to the front side of the third front bracket (18) and is synchronously rotated with the magnetic control wheel (73) on the same axis, and the pulley and the rotating wheel are jointly wrapped around a transmission belt (75), and the magnetic control resistance mechanism (70) provides resistance for the rotational movement of the core shaft (61) through the cooperation of the first bevel gear (62) and the second bevel gear (63).

6. The frame type leg raising machine according to claim 1 or 5, Features: The frame-type leg-lifting machine also includes two swinging assemblies (50), each swinging assembly (50) includes at least a rear swinging rod (51) and a front pivoting member (54), the upper ends of the two rear swinging rods (51) are respectively pivotally connected to the pivoting parts (203) of the two driving rods (20), the lower ends of the two rear swinging rods (51) are respectively pivotally connected to one end of a front pivoting member (54), and the other ends of the two front pivoting members (54) are respectively fixedly connected to the two ends of the core shaft (61).

7. The frame type leg raising machine according to claim 1 or 5, Features: The frame-type leg-lifting machine also includes two swinging assemblies (50), each swinging assembly (50) includes at least one rear swinging rod (51), one rear pivoting member (52), one lower swinging rod (53) and one front pivoting member (54), the two rear pivoting members (52) are respectively pivoted on the two rear upright frames (14), the upper ends of the two rear swinging rods (51) are respectively pivoted with the pivoting parts (203) of the two driving rods (20), and the lower ends of the two rear swinging rods (51) are respectively pivoted with one end of the two rear pivoting members (52), the other ends of the two rear pivoting members (52) are respectively pivoted with the rear ends of the two lower swinging rods (53), the front ends of the two lower swinging rods (53) are respectively pivoted with one end of the two front pivoting members (54), and the other ends of the two front pivoting members (54) are respectively fixedly connected to the two ends of the core shaft (61).

8. The frame type leg raising machine according to claim 1, Features: The pivoting portion (203) at the upper end (201) of the driving rod is a wheel structure, and the linkage assembly (40) includes four fixed pulleys (44) arranged in pairs at the rear section of the lower frame (11) in a front-to-rear correspondence, and a linkage rope (43) is commonly wound around the two pivoting portions (203) and the four fixed pulleys (44).

9. The frame type leg raising machine according to claim 1, Features: A lifting mechanism (80) for adjusting the inclination angle of the main frame (10) is connected to the front portion of the bottom of the main frame (10). The lifting mechanism (80) comprises a lifting frame body (81), two rollers (82) and a lifter (83). One end of the lifting frame body (81) is pivotally connected to the main frame (10), the two rollers (82) are respectively connected to the other ends of the lifting frame body (81), and the two ends of the lifter (83) are respectively pivotally connected to the main frame (10) and the lifting frame body (81).

Images