Frame type leg lifting machine

Abstract

The utility model discloses a frame type leg lifting machine, which comprises a main frame, two driving rods, two leg lifting devices, a leg lifting device, a leg lifting device, a leg lifting device, a leg lifting device, a leg lifting device, a leg lifting device, a leg lifting device, a leg lifting device, a leg lifting device, a leg lifting device and a leg lifting device, 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 utility model relates to body -building equipment technical field, concretely relates to a frame type leg -lifting machine. BACKGROUND

[0002] The prior art TWM469091U (application date: March 18, 2013) discloses a leg-lifting machine, and the leg-lifting machine of the technical scheme is long and narrow in overall structure design, and is not stable in support to a certain extent, and in the process of leg-lifting training, the operator may lose balance and be inclined to the left and right sides due to improper use. UTILITY MODEL CONTENTS

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

[0004] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0005] A frame type leg-lifting machine comprises:

[0006] A main frame comprises a lower bottom frame, an upper support frame and two front stands and two rear stands connected to the front and rear sides of the lower bottom frame and the upper support frame respectively, and a handrail frame is connected to the upper support frame;

[0007] Two drive rods, the drive rod has a drive rod upper end and a drive rod lower end, the drive rod upper end of the two drive rods is respectively pivoted to the two rear stands on the rear side of the main frame and swings forward and backward around the respective pivot points, the drive rod upper end of the drive rod is provided with a pivot part, and the drive rod lower end of the two drive rods is each pivoted to a pedal;

[0008] At least one linkage assembly is configured to link the swinging movement of the two drive rods to make the two drive rods swing forward and backward relative to the main frame.

[0009] Further, the main frame is in the form of a square frame structure.

[0010] Further, a first front support transversely connected is fixed to the front side of the main frame, the linkage assembly comprises a swing seat and two linkage rods, the swing seat is pivoted to the first front support, the front ends of the two linkage rods are respectively pivoted to the left and right side ends of the swing seat, and the rear ends of the two linkage rods are respectively pivoted to the pivot parts at the upper ends of the corresponding drive rods.

[0011] Further, two swing handlebars are respectively pivoted to the two sides of the main frame, the lower ends of the two swing handlebars are respectively pivoted to the front ends of two connecting rods, and the rear ends of the two connecting rods are respectively pivoted to the pivot parts at the upper ends of the corresponding drive rods.

[0012] Further, the main frame is fixedly connected with a second front support and a third front support arranged transversely on the front side of the main frame, and the two front stands are each provided with a pivot joint ear, and the frame type leg lifting machine further comprises a transmission assembly and a magnetic control resistance mechanism, the transmission assembly comprises a core shaft, a first umbrella-shaped gear and a second umbrella-shaped gear, both ends of the core shaft are respectively pivotally connected to the corresponding pivot joint ears of the two front stands, the first umbrella-shaped gear is connected to the core shaft, and the second umbrella-shaped gear is connected to the rear side of the second front support and is in meshing cooperation with the first umbrella-shaped gear; the magnetic control resistance mechanism at least comprises a belt pulley, a rotating wheel, a magnetic control wheel and a magnetic force seat arranged corresponding to the periphery of the magnetic control wheel, wherein the magnetic control wheel is pivotally connected to the third front support, the magnetic force seat is connected to the second front support, the belt pulley is pivotally connected to the front side of the second front support and is arranged in synchronous rotation with the second umbrella-shaped gear at the same axis, the rotating wheel is pivotally connected to the front side of the third front support and is arranged in synchronous rotation with the magnetic control wheel at the same axis, and the belt pulley and the rotating wheel are jointly wrapped with a transmission belt, and the magnetic control resistance mechanism provides resistance for the rotational movement of the core shaft through the cooperation of the first umbrella-shaped gear and the second umbrella-shaped gear.

[0013] Further, the frame type leg lifting machine further comprises two swing assemblies, each swing assembly at least comprises a rear swing rod and a front pivot joint, the upper ends of the two rear swing rods are respectively pivotally connected to the pivot joint parts of the two drive rods, the lower ends of the two rear swing rods are respectively pivotally connected to one end of a front pivot joint, and the other ends of the two front pivot joints are respectively fixedly connected to both ends of the core shaft.

[0014] Further, the frame type leg lifting machine further comprises two swing assemblies, each swing assembly at least comprises a rear swing rod, a rear pivot joint, a lower swing rod and a front pivot joint, the two rear pivot joints are respectively pivotally connected to the two rear stands, the upper ends of the two rear swing rods are respectively pivotally connected to the pivot joint parts of the two drive rods, the lower ends of the two rear swing rods are respectively pivotally connected to one end of the two rear pivot joints, the other ends of the two rear pivot joints are respectively pivotally connected to the rear ends of the two lower swing rods, the front ends of the two lower swing rods are respectively pivotally connected to one end of the two front pivot joints, and the other ends of the two front pivot joints are respectively fixedly connected to both ends of the core shaft.

[0015] Further, the pivot joint part at the upper end of the drive rod is in the form of a wheel body, the linkage assembly comprises four fixed pulleys arranged in front and back correspondence in pairs at the rear segment position of the lower bottom frame, and a linkage rope is jointly wrapped on the two pivot joint parts and the four fixed pulleys.

[0016] Further, the bottom front segment position of the main frame is connected with a lifting mechanism for adjusting the inclination angle of the main frame, the lifting mechanism comprises a lifting frame body, two rollers and a lifter, one end of the lifting frame body is pivotally connected to the main frame, the two rollers are respectively connected at the other end of the lifting frame body, and both ends of the lifter are respectively pivotally connected to the main frame and the lifting frame body.

[0017] The above technical scheme has the following advantages or beneficial effects:

[0018] The frame type leg lifting machine, the exerciser can enter the main frame from the rear side of the frame type leg lifting machine, and the square frame type structure comprises a lower bottom frame and an upper support frame, can be more stable when the exerciser alternately lifts legs and does not lean to the left and right, and effectively isolates the approach of non-users, so as to increase the safety of the exerciser. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the embodiment one of the utility model.

[0020] Figure 2 It is a three-dimensional structure exploded schematic diagram of the embodiment one of the utility model.

[0021] Figure 3 It is a use state schematic diagram of the embodiment one of the utility model.

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the embodiment two of the utility model.

[0023] Figure 5 It is a three-dimensional structure schematic diagram of the embodiment three of the utility model.

[0024] Figure 6 It is another angle three-dimensional structure schematic diagram of the embodiment three of the utility model.

[0025] Figure 7 It is a three-dimensional structure exploded schematic diagram of the embodiment three of the utility model.

[0026] Figure 8 It is a local structure enlarged view of the embodiment three of the utility model.

[0027] Figure 9 It is another angle local structure enlarged view of the embodiment three of the utility model.

[0028] Figure 10 It is a use state schematic diagram of the embodiment three of the utility model.

[0029] Figure 11 It is a three-dimensional structure schematic diagram of the embodiment four of the utility model.

[0030] Figure 12 It is another angle three-dimensional structure schematic diagram of the embodiment four of the utility model.

[0031] Figure 13 It is a three-dimensional structure exploded schematic diagram of the embodiment four of the utility model.

[0032] Figure 14 It is a use state schematic diagram of the embodiment four of the utility model.

[0033] Reference signs:

[0034] 10, main frame, 11, lower bottom frame, 12, upper support frame, 13, front stand, 14, rear stand, 15, handrail frame, 16, first front support, 17, second front support, 18, third front support, 20, driving rod, 30, pedal, 40, linkage assembly, 41, swing seat, 42, linkage 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, mandrel, 62, first umbrella gear, 63, second umbrella gear, 70, magnetic control resistance mechanism, 71, belt pulley, 72, rotating wheel, 73, magnetic control wheel, 74, magnetic force seat, 75, transmission belt, 80, lifting mechanism, 81, lifting frame, 82, roller, 83, lifter, 90, swing handle, 91, connecting rod, 131, pivot lug, 201, upper end of driving rod, 202, lower end of driving rod, 203, pivot part. DETAILED DESCRIPTION

[0035] The utility model will be further described below in combination with the drawings and examples.

[0036] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0037] Example one

[0038] Please refer to the drawings Figure 1 to the drawings Figure 3 An embodiment of the utility model provides a frame type leg lifting machine, which comprises:

[0039] A main frame 10, the main frame 10 is generally in the form of a square box structure, the main frame 10 includes a lower bottom frame 11, an upper support frame 12 and two front stands 13 and two rear stands 14 connected to the front and rear sides of the lower bottom frame 11 and the upper support frame 12 respectively, and the upper support frame 12 is connected with a handrail frame 15;

[0040] 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 end 201 of the two driving rods 20 is respectively pivoted on the two rear stands 14 at the rear side of the main frame 10 and swings forward and backward around the respective pivot points, the driving rod upper end 201 of the driving rod 20 is provided with a pivot part 203, and the driving rod lower end 202 of the two driving rods 20 is respectively provided with a pedal 30;

[0041] A linkage assembly 40 is configured to link the swinging movement of the two drive rods 20, so that the two drive rods 20 swing back and forth relative to the main frame 10.

[0042] Please refer to the accompanying drawings Figure 1 In a preferred embodiment, the main frame 10 is fixedly connected with a first front support 16 transversely arranged at the front side, the linkage assembly 40 includes a swinging seat 41 and two linkage rods 42, the swinging seat 41 is pivoted to the first front support 16, the front ends of the two linkage rods 42 are respectively pivoted to the left and right side ends of the swinging seat 41, and the rear ends of the two linkage rods 42 are respectively pivoted to the pivoting portions 203 at the upper ends 201 of the corresponding drive rods.

[0043] Embodiment two

[0044] Please refer to the accompanying drawings Figure 4 In an embodiment of the utility model, a frame type leg lifting machine is provided, which comprises:

[0045] A main frame 10, the main frame 10 is generally in the form of a square frame structure, the main frame 10 includes a lower bottom frame 11, an upper support frame 12 and two front vertical frames 13 and two rear vertical frames 14 respectively connected to the front and rear sides of the lower bottom frame 11 and the upper support frame 12, and a handrail frame 15 is connected to the upper support frame 12;

[0046] Two drive rods 20, the drive rod 20 has a drive rod upper end 201 and a drive rod lower end 202, the drive rod upper ends 201 of the two drive rods 20 are respectively pivoted to the two rear vertical frames 14 at the rear side of the main frame 10 and swing back and forth around the respective pivoting points, the drive rod upper end 201 of the drive rod 20 is provided with a pivoting portion 203, and the drive rod lower end 202 of the two drive rods 20 is respectively pivoted with a pedal 30;

[0047] A linkage assembly 40 is configured to link the swinging movement of the two drive rods 20, so that the two drive rods 20 swing back and forth relative to the main frame 10.

[0048] Please refer to the accompanying drawings Figure 1 In a preferred embodiment, the main frame 10 is fixedly connected with a first front support 16 transversely arranged at the front side, the linkage assembly 40 includes a swinging seat 41 and two linkage rods 42, the swinging seat 41 is pivoted to the first front support 16, the front ends of the two linkage rods 42 are respectively pivoted to the left and right side ends of the swinging seat 41, and the rear ends of the two linkage rods 42 are respectively pivoted to the pivoting portions 203 at the upper ends 201 of the corresponding drive rods.

[0049] Please refer to the accompanying drawings Figure 1In one preferred embodiment, the front side of the main frame 10 is fixedly connected with a second front support 17 and a third front support 18 arranged transversely, and the two front stands 13 are each provided with a pivot joint ear 131. The frame type leg lifting machine further comprises a transmission assembly 60 and a magnetic control resistance mechanism 70. The transmission assembly 60 comprises a core shaft 61, a first umbrella-shaped gear 62 and a second umbrella-shaped gear 63. The two ends of the core shaft 61 are pivotally connected to the corresponding pivot joint ears 131 of the two front stands 13, respectively. The first umbrella-shaped gear 62 is connected to the core shaft 61. The second umbrella-shaped gear 63 is connected to the rear side of the second front support 17 and is in meshing cooperation with the first umbrella-shaped gear 62. The magnetic control resistance mechanism 70 at least comprises a belt pulley 71, a rotating wheel 72, a magnetic control wheel 73 and a magnetic force seat 74 arranged corresponding to the periphery of the magnetic control wheel 73. The magnetic control wheel 73 is pivotally connected to the third front support 18. The magnetic force seat 74 is connected to the second front support 17. The belt pulley 71 is pivotally connected to the front side of the second front support 17 and is arranged in synchronous rotation with the second umbrella-shaped gear 63 on the same axis. The rotating wheel 72 is pivotally connected to the front side of the third front support 18 and is arranged in synchronous rotation with the magnetic control wheel 73 on the same axis. The belt pulley and the rotating wheel are jointly wrapped with a transmission belt 75. The magnetic control resistance mechanism 70 provides resistance for the rotational movement of the core shaft 61 through the cooperation of the first umbrella-shaped gear 62 and the second umbrella-shaped gear 63.

[0050] Please refer to the accompanying drawings Figure 4 In one preferred embodiment, the frame type leg lifting machine further comprises two swing assemblies 50. Each swing assembly 50 at least comprises a rear swing rod 51, a rear pivot joint 52, a lower swing rod 53 and a front pivot joint 54. The two rear pivot joints 52 are pivotally connected to the two rear stands 14, respectively. The upper ends of the two rear swing rods 51 are pivotally connected to the pivot joint portions 203 of the two drive rods 20, respectively. The lower ends of the two rear swing rods 51 are pivotally connected to one end of the two rear pivot joints 52, respectively. The other ends of the two rear pivot joints 52 are pivotally connected to the rear ends of the two lower swing rods 53, respectively. The front ends of the two lower swing rods 53 are pivotally connected to one end of the two front pivot joints 54, respectively. The other ends of the two front pivot joints 54 are fixedly connected to the two ends of the core shaft 61, respectively.

[0051] Please refer to the accompanying drawings Figure 4 In one preferred embodiment, the front end of the bottom of the main frame 10 is connected with a lifting mechanism 80 for adjusting the inclination angle 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 connected to the other end of the lifting frame body 81, respectively. The two ends of the lifter 83 are pivotally connected to the main frame 10 and the lifting frame body 81, respectively.

[0052] Embodiment three

[0053] Please refer to the accompanying drawings Figure 5 to the accompanying drawings Figure 10The difference between the embodiment and the embodiment two is that the embodiment three adds the structure of the swing handle 90 on the basis of the embodiment two. Specifically, the two swing handles 90 are respectively pivoted to the front ends of the two connecting rods 91, and the rear ends of the two connecting rods 91 are respectively pivoted to the pivoting portions 203 at the upper ends 201 of the driving rods on the corresponding sides.

[0054] Embodiment four

[0055] Please refer to the accompanying drawings Figure 11 to the accompanying drawings Figure 14 An embodiment of the utility model provides a frame type leg lifting machine, which comprises:

[0056] A main frame 10, the main frame 10 is generally in the form of a square box, and the main frame 10 comprises a lower bottom frame 11, an upper support frame 12 and two front vertical frames 13 and two rear vertical frames 14 connected to the front and rear sides of the lower bottom frame 11 and the upper support frame 12 respectively, and a handrail frame 15 is connected to the upper support frame 12;

[0057] 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 pivoted to the two rear vertical frames 14 on the rear side of the main frame 10 and swing forward and backward around the respective pivoting points, the driving rod upper end 201 of the driving rod 20 is provided with a pivoting portion 203, and the driving rod lower ends 202 of the two driving rods 20 are each pivoted to a pedal 30;

[0058] A linkage assembly 40, the linkage assembly 40 is configured to link the swing movement of the two driving rods 20, so that the two driving rods 20 swing forward and backward relative to the main frame 10. The pivoting portion 203 at the driving rod upper end 201 is in the form of a wheel body, the linkage assembly 40 comprises four fixed pulleys 44 arranged in pairs in front of and behind each other at the rear segment position of the lower bottom frame 11, and a linkage rope 43 is jointly sleeved on the two pivoting portions 203 and the four fixed pulleys 44.

[0059] Please refer to the accompanying drawings Figure 11 to the accompanying drawings Figure 14 In a preferred embodiment, the pivoting portion 203 at the driving rod upper end 201 is in the form of a wheel body, the linkage assembly 40 comprises four fixed pulleys 44 arranged in pairs in front of and behind each other at the rear segment position of the lower bottom frame 11, and a linkage rope 43 is jointly sleeved on the two pivoting portions 203 and the four fixed pulleys 44.

[0060] Please refer to the accompanying drawings Figure 11 to the accompanying drawings Figure 14In a preferred embodiment, the frame leg lifting machine further comprises two swing assemblies 50, each swing assembly 50 comprising at least one rear swing rod 51 and one front pivot 54, the upper ends of the two rear swing rods 51 being pivotally connected to the pivot portions 203 of the two driving rods 20 respectively, the lower ends of the two rear swing rods 51 being pivotally connected to one end of the front pivot 54 respectively, and the other ends of the two front pivots 54 being fixedly connected to the two ends of the mandrel 61 respectively.

[0061] Please refer to the accompanying drawings Figure 11 to the accompanying drawings Figure 14 In a preferred embodiment, the front side of the main frame 10 is fixedly connected with a second front support 17 and a third front support 18 arranged transversely, and the two front stands 13 are each provided with a pivot lug 131. The frame leg lifting machine further comprises a transmission assembly 60 and a magnetic resistance mechanism 70. The transmission assembly 60 comprises a mandrel 61, a first umbrella gear 62 and a second umbrella gear 63. The two ends of the mandrel 61 are pivotally connected to the corresponding pivot lugs 131 of the two front stands 13 respectively. The first umbrella gear 62 is connected to the mandrel 61. The second umbrella gear 63 is connected to the rear side of the second front support 17 and is in meshing cooperation with the first umbrella gear 62. The magnetic resistance mechanism 70 comprises at least a belt 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. The magnetic control wheel 73 is pivotally connected to the third front support 18. The magnetic seat 74 is connected to the second front support 17. The belt pulley 71 is pivotally connected to the front side of the second front support 17 and is arranged in synchronous rotation with the second umbrella gear 63 on the same axis. The rotating wheel 72 is pivotally connected to the front side of the third front support 18 and is arranged in synchronous rotation with the magnetic control wheel 73 on the same axis. The belt pulley and the rotating wheel are jointly wrapped with a transmission belt 75. The magnetic resistance mechanism 70 provides resistance for the rotational movement of the mandrel 61 through the cooperation of the first umbrella gear 62 and the second umbrella gear 63.

[0062] Please refer to the accompanying drawings Figure 11 to the accompanying drawings Figure 14 In a preferred embodiment, the front section of the bottom of the main frame 10 is connected with a lifting mechanism 80 for adjusting the inclination angle 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 connected to the other end of the lifting frame body 81 respectively. The two ends of the lifter 83 are pivotally connected to the main frame 10 and the lifting frame body 81 respectively.

[0063] The use methods of the embodiments are described below in detail.

[0064] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 3The embodiment one is shown, when using, holding the handrail 15 with both hands, and swinging the two driving rods 20 on the pedal 30 with both feet, and swinging the two driving rods 20 in the arc track by the linkage assembly 40 left and right, and making the two driving rods 20 limit each other in the front and back.

[0065] As shown in the embodiment two, when using, swinging the two driving rods 20 on the pedal 30, and making the two driving rods 20 swing in the arc track, and when the two driving rods 20 swing, sequentially driving the rear swing rod 51, the rear pivot 52, the lower swing rod 53, and the front pivot 54, and making the core shaft 61 rotate repeatedly, and then the first umbrella gear 62 rotates, and sequentially drives the second umbrella gear 63, the belt pulley 71, the rotating wheel 72, and the magnetic control wheel 73, and when the magnetic control wheel 73 rotates, the magnetic force seat 74 provides magnetic resistance, and finally provides resistance to the two driving rods 20 in reverse order through the magnetic control wheel 73. Figure 4 As shown in the embodiment three, the structure is basically the same as the embodiment two, and the difference is that two swing handle rods 90 are added, when using, holding the swing handle rod 90 with both hands, and swinging the two driving rods 20 on the pedal 30 with the feet, and when the two driving rods 20 swing, the two swing handle rods 90 also swing in the front and back.

[0066] As shown in the embodiment four, when using, holding the handrail 15 with both hands, and swinging the two driving rods 20 on the pedal 30 with the feet, and swinging the two driving rods 20 in the arc track by the linkage assembly 40 left and right, and making the two driving rods 20 limit each other in the front and back. Figure 5 Figure 10 As shown in the embodiment four, when using, holding the handrail 15 with both hands, and swinging the two driving rods 20 on the pedal 30 with the feet, and swinging the two driving rods 20 in the arc track by the linkage assembly 40 left and right, and making the two driving rods 20 limit each other in the front and back.

[0067] As shown in the embodiment four, when using, holding the handrail 15 with both hands, and swinging the two driving rods 20 on the pedal 30 with the feet, and swinging the two driving rods 20 in the arc track by the linkage assembly 40 left and right, and making the two driving rods 20 limit each other in the front and back. Figure 11 Figure 14 As shown in the embodiment four, when using, holding the handrail 15 with both hands, and swinging the two driving rods 20 on the pedal 30 with the feet, and swinging the two driving rods 20 in the arc track by the linkage assembly 40 left and right, and making the two driving rods 20 limit each other in the front and back.

[0068] ​​It can be understood that, due to the use of chain transmission, the assembly efficiency is high, the linkage assembly 40 is easy to assemble, not easy to damage and easy to maintain, the component and assembly cost is low, the whole machine price is competitive, and it is easy to be favored by buyers and consumers. The exerciser 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 bottom frame 11 and the upper support frame 12 can be more stable when the exerciser alternately lifts legs, and can effectively isolate non-users from approaching, thereby increasing the safety of the exerciser.

[0069] In addition, in examples two to four, the magnetic control wheel 73 is matched with the magnetic magnet base 74, the stability is high and easy to adjust and maintain, and the magnetic control wheel 73 rotates with inertia, which is the more common exercise mode for exercisers. The lifting mechanism 80 makes the main frame 10 lift to produce different inclination angles, so that the alternating leg lifting action and even the alternating arm swinging action can achieve different training intensities on the core muscle group. The steeper the inclination angle of the main frame 10, the greater the training intensity, and vice versa. The gentler the inclination angle, the smaller the training intensity.

[0070] The above-described examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the present application, therefore, all other examples obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

Claims

1. A frame-type leg-raising machine, characterized in that, include: A main frame (10) includes a lower bottom frame (11), an upper support frame (12), and two front uprights (13) and two rear uprights (14) respectively connected to the front and rear sides of the lower bottom frame (11) and the upper support frame (12). A handrail frame (15) is connected to the upper support frame (12). Two drive rods (20), each drive rod (20) has an upper drive rod (201) and a lower drive rod (202). The upper drive rods (201) of the two drive rods (20) are respectively pivotally connected to the two rear uprights (14) on the rear side of the main frame (10) and swing back and forth around their respective pivot points. The upper drive rod (201) of the drive rod (20) is provided with a pivot part (203), and each of the lower drive rods (202) of the two drive rods (20) is pivotally provided with a pedal (30). At least one linkage component (40) is configured to link the swing motion of the two drive rods (20) so that the two drive rods (20) swing back and forth relative to the main frame (10).

2. The frame-type leg-raising machine according to claim 1, characterized in that: The main frame (10) has a square frame structure.

3. The frame-type leg-raising machine according to claim 1, characterized in that: A first front bracket (16) is fixedly connected to the front side of the main frame (10) and is arranged horizontally. The linkage assembly (40) includes a swing seat (41) and a two-linkage rod (42). The swing seat (41) is pivotally connected to the first front bracket (16). The front ends of the two-linkage rod (42) are pivotally connected to the left and right ends of the swing seat (41) respectively. The rear ends of the two-linkage rod (42) are pivotally connected to the pivot part (203) at the upper end (201) of the corresponding side drive rod respectively.

4. The frame-type leg-raising machine according to claim 1, characterized in that: A swing grip (90) is pivotally connected to each side of the main frame (10). The lower ends of the two swing grips (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 pivot part (203) at the upper end (201) of the corresponding side drive rod.

5. The frame-type leg-raising machine according to claim 1, characterized in that: The main frame (10) is fixedly connected to a second front support (17) and a third front support (18) arranged laterally. Both front supports (13) are provided with pivot ears (131). The frame-type leg lifting machine also includes a transmission assembly (60) and a magnetic 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 corresponding pivot ears (131) of the two front supports (13). The first bevel gear (62) is connected to the spindle (61). The second bevel gear (63) is connected to the rear side of the second front support (17) and meshes with the first bevel gear (62). The magnetic resistance mechanism (70) includes at least one pulley (71). The device includes a rotating wheel (72), a magnetic control wheel (73), and a magnetic seat (74) corresponding to the periphery of the magnetic control wheel (73). The magnetic control wheel (73) is pivotally connected to the third front support (18), and the magnetic seat (74) is connected to the second front support (17). The pulley (71) is pivotally connected to the front side of the second front support (17) and rotates synchronously with the second bevel gear (63) on the same axis. The rotating wheel (72) is pivotally connected to the front side of the third front support (18) and rotates synchronously with the magnetic control wheel (73) on the same axis. The pulley and the rotating wheel are wrapped together with a transmission belt (75). The magnetic resistance mechanism (70) provides resistance to the rotation of the spindle (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, characterized in that: The frame-type leg raising machine also includes two swing components (50). Each swing component (50) includes at least one rear swing rod (51) and one front pivot (54). The upper ends of the two rear swing rods (51) are respectively pivotally connected to the pivot part (203) of the two drive rods (20). The lower ends of the two rear swing rods (51) are respectively pivotally connected to one end of the front pivot (54). The other ends of the two front pivots (54) are respectively fixedly connected to both ends of the spindle (61).

7. The frame-type leg-raising machine according to claim 1 or 5, characterized in that: The frame-type leg-raising machine also includes two swing components (50). Each swing component (50) includes at least one rear swing rod (51), one rear pivot (52), one lower swing rod (53), and one front pivot (54). The two rear pivots (52) are respectively pivotally connected to the two rear uprights (14). The upper ends of the two rear swing rods (51) are respectively pivotally connected to the pivot parts (203) of the two drive rods (20). The lower ends of the two rear swing rods (51) are respectively pivotally connected to one end of the two rear pivots (52). The other ends of the two rear pivots (52) are respectively pivotally connected to the rear ends of the two lower swing rods (53). The front ends of the two lower swing rods (53) are respectively pivotally connected to one end of the two front pivots (54). The other ends of the two front pivots (54) are respectively fixedly connected to both ends of the spindle (61).

8. The frame-type leg-raising machine according to claim 1, characterized in that: The pivot (203) at the upper end (201) of the drive rod has a wheel structure. The linkage assembly (40) includes four fixed pulleys (44) arranged in pairs at the rear of the lower frame (11). A linkage rope (43) is wound around the two pivots (203) and the four fixed pulleys (44).

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

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