Frame type leg lifting machine with stable stepping swing

Abstract

The utility model discloses a frame type leg lifting machine with stable stepping and swinging, which mainly comprises a main frame formed by a lower bottom frame, two supporting side frames, two front vertical frames and two rear vertical frames, at least two driving leg swing rod assemblies, a swinging assembly and a magnetic control resistance mechanism are arranged in the main frame, wherein each of the two driving leg swing rod assemblies comprises a main leg swing rod and an auxiliary leg swing rod, the upper ends of each main leg swing rod and auxiliary leg swing rod are respectively pivotally arranged on the rear vertical frames and the supporting side frames as swinging fulcrums, and the main leg swing rods and the auxiliary leg swing rods swing in front and back alternating arc-shaped tracks in the main frame, and the lower ends of the auxiliary leg swing rods and the main leg swing rods are respectively pivotally arranged at the front segment positions and the rear segment positions of the side edges of a pedal, so that the exerciser can safely and stably step and perform alternating leg lifting exercise.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment technology, specifically to a frame-type leg raise machine with stable pedaling and swinging. Background Technology

[0002] Chinese document TW202535501A discloses a frame-type leg-raising machine that combines safety, stable swing, and magnetic resistance. It mainly consists of a main frame containing at least two drive leg swing arms, two handrail swing arms, a swing assembly, and a magnetic resistance mechanism. Each drive leg swing arm is located on one side of the main frame, with a pedal pivotally mounted at its lower end. Its upper end is connected to each handrail swing arm via a transverse driven rod. Simultaneously, the upper ends of the two drive leg swing arms are pivotally connected downwards to the swing assembly. The swing assembly is connected to the magnetic resistance mechanism, which simultaneously provides reverse resistance sequentially to the two drive leg swing arms and the two handrail swing arms. This allows the user to perform alternating leg-raising and swinging movements with a limited, arc-shaped trajectory, achieving the practical benefits of magnetic resistance, stable swing, and improved safety. However, it has the following drawbacks:

[0003] (i) Because the technical solution uses a drive leg swing arm pivotally mounted on the middle section of the side of the pedal, when the user steps on the pedal with his foot, the pedal is very easy to swing back and forth, and the user's foot is easy to slip off the pedal forward or backward and cause ankle sprain, which is dangerous in use.

[0004] (ii) When the user’s foot is safely placed on the pedal and the user performs alternating leg swinging, the back and forth swing of the drive leg swing arm and the corresponding pedal of the user make the pedal more likely to swing back and forth, and the user’s foot is more likely to slip forward or backward off the pedal, causing the whole person to fall off the frame leg raise machine and get injured. The user’s head may even hit the various components of the frame leg raise machine, resulting in greater and unimaginable danger in use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a frame-type leg raise machine with stable foot pedal swing. It mainly solves the technical problem that the foot pedal swing design of existing frame-type leg raise machines lacks safety, causing the pedal to easily tilt back and forth, making it easy for the user's foot to slip forward or backward off the pedal, resulting in ankle sprains, or the whole person falling off the frame-type leg raise machine and getting injured, or even possibly suffering head injuries.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A frame-type leg-raising machine with stable pedaling swing includes a lower base frame, two supporting side frames, two front uprights and two rear uprights. The two sides of the lower base frame are connected to the front and rear uprights of each of the supporting side frames.

[0008] The two-drive leg swing arm assembly includes a main leg swing arm and a secondary leg swing arm. Each main leg swing arm and secondary leg swing arm has its upper end pivotally mounted on the rear upright and the supporting side frame as swing fulcrums, and swings in an alternating arc trajectory within the main frame. The lower ends of the secondary leg swing arm and the main leg swing arm are pivotally mounted on the front and rear sections of a pedal side, respectively. A pivot part extends from one side of the upper end of the main leg swing arm. Each pivot part is pivotally connected downward to the upper end of a follower. The lower end of the follower is pivotally connected to one end of a rear swing member. One side of the rear swing member is pivotally mounted on the rear upright.

[0009] A swing assembly includes at least a transverse swing seat, two linkages, and two base rods. The transverse swing seat is pivotally mounted on the rear section of the lower base frame, and its two ends are pivotally connected to one end of each linkage. The other end of each linkage is pivotally connected to each of the rear swing members. The rear end of each base rod is pivotally connected to the other end of each of the rear swing members, and its front end is pivotally connected to one end of a front swing member. The other ends of the two front swing members are axially pivotally mounted on a rotating spindle.

[0010] A magnetic resistance mechanism is installed at the front of the lower frame 11 and connected to the swing assembly, and provides resistance to the swing assembly. The magnetic resistance mechanism includes at least a rotatable pulley, a rotatable magnetic control wheel, a transmission belt, and a second transmission belt. The magnetic control wheel has a pivot wheel on one side of its shaft, and the pivot wheel and the pulley are wrapped together around the second transmission belt. The pulley has a pivot wheel on one side of its shaft, and the pivot wheel and one end of the rotating spindle are wrapped together around the transmission belt.

[0011] Furthermore, the two support side frames are connected together to a front bracket, which is connected to a placement rack, and each of the two support side frames is connected to a handrail frame.

[0012] Furthermore, the lower end of a handrail swing arm is pivotally mounted on each of the two sides of the bottom frame. A transverse driven rod is pivotally connected to the middle section of each handrail swing arm, and the other end of the transverse driven rod is pivotally connected to the pivot part of each main leg swing arm. Each of the two support side frames has a longitudinally penetrating groove, and each groove allows the handrail swing arm to pass through and swing.

[0013] Furthermore, a first cover is provided on one side of the support frame, and a second cover is provided on one side of the rear upright.

[0014] Furthermore, each of the two ends of the driven member is pivotally connected to a pivot member, and the other end of each pivot member is pivotally connected to the pivot part of the main leg swing arm and one end of the rear swing member, respectively.

[0015] Furthermore, the follower has a rod-like structural form.

[0016] Furthermore, the driven element has a cable-like structure.

[0017] Furthermore, a front support is laterally connected to the front section of the lower frame. The front support has two pivot ears, and the two pivot ears and the two front swing members are pivotally connected to a rotating spindle.

[0018] Furthermore, a rear support is laterally connected to the rear section of the lower frame, and a lateral swing element seat is pivotally mounted on the rear support.

[0019] Furthermore, the lower frame has a front cover and a rear cover on its upper side. The front cover covers the magnetic resistance mechanism, and the rear cover covers the swing assembly.

[0020] Furthermore, a swingable lifting frame is pivotally connected to the bottom of the lower frame, and a lifting mechanism is connected between the lifting frame and the lower frame. The lifting mechanism drives the lifting frame to swing, thereby causing the lower frame to change different lifting and tilting angles.

[0021] The above technical solution has the following advantages or beneficial effects:

[0022] In the frame-type leg raise machine with stable pedal swing described in this utility model, because the front and rear sections of the pedal are pivotally equipped with a secondary leg swing rod and a main leg swing rod, when the user uses the machine and steps on the pedal with both feet and performs alternating leg raises and swings, there will be no back-and-forth swaying or tilting. The user's feet can be firmly and safely placed on the pedal, and will not slip off the pedal and cause ankle sprains, or the whole person will fall from the frame-type leg raise machine and be injured, or even the head will hit the various components of the frame-type leg raise machine, so that the user has a high degree of safety during use. Attached Figure Description

[0023] Figure 1 This is a three-dimensional composite diagram of Embodiment 1 of this utility model.

[0024] Figure 2 This is a schematic diagram showing the front cover plate, rear cover plate, first cover member, and second cover member disassembled according to Embodiment 1 of this utility model.

[0025] Figure 3 This is another perspective view of Embodiment 1 of this utility model.

[0026] Figure 4 This is an exploded perspective view of the drive leg swing arm assembly according to Embodiment 1 of this utility model.

[0027] Figure 5 This is an exploded perspective view of the swing component of Embodiment 1 of this utility model.

[0028] Figure 6This is a schematic diagram of the combination of the drive leg swing arm assembly and the swing assembly in Embodiment 1 of this utility model.

[0029] Figure 7 This is an exploded view of the drive leg swing arm assembly and the swing assembly of Embodiment 1 of this utility model.

[0030] Figure 8 This is a schematic diagram of the swing of the drive leg swing arm assembly and the pedal in Embodiment 1 of this utility model.

[0031] Figure 9 This is a three-dimensional composite diagram of Embodiment 2 of this utility model.

[0032] Figure 10 This is a perspective exploded view of the drive leg swing arm assembly and the handrail swing arm according to Embodiment 2 of this utility model.

[0033] Figure 11 This is a schematic diagram of the combination of the drive leg swing arm assembly, the handrail swing arm, and the swing assembly in Embodiment 2 of this utility model.

[0034] Figure 12 This is an exploded view of the drive leg swing arm assembly, handrail swing arm, and swing assembly of a second embodiment of the present invention.

[0035] Figure 13 This is a diagram showing the combined position of the magnetic resistance mechanism according to an embodiment of the present invention.

[0036] Figure 14 This is a structural reference diagram of the first driven member of this utility model being a cable. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] As attached Figure 1 ~Attached Figure 8 and appendix Figure 13 As shown, this utility model provides a frame-type leg raise machine with stable pedaling and swinging, comprising:

[0040] A main frame 10 includes a lower frame 11, two supporting side frames 12, two front uprights 13, and two rear uprights 14. The lower frame 11 is laterally connected to a front support 112 and a rear support 111 at its front and rear sections, respectively. The front support 112 is provided with two parallel pivot ears 113, and the bottom of the lower frame 11 is pivotally connected to a swingable lifting frame 80. The two sides of the lower frame 11 are connected to the front and rear sides of each of the supporting side frames 12, respectively, and the front sides of the two supporting side frames 12 are connected to a front support 15. The front support 15 is connected to a placement rack 16, and each of the two supporting side frames 12 is connected to a handrail frame 17.

[0041] The two-drive leg swing arm assembly 20 includes a main leg swing arm 21 and a secondary leg swing arm 22. The upper ends of the main leg swing arm 21 and the secondary leg swing arm 22 are respectively pivotally mounted on the rear upright 14 and the supporting side frame 12 as swing fulcrums, and swing in an alternating arc trajectory within the main frame 10. The lower ends of the secondary leg swing arm 22 and the main leg swing arm 21 are respectively pivotally mounted on the front and rear sections of the side of a pedal 30. A pivot part 211 extends from one side of the upper end of the main leg swing arm 21. In addition, each pivot part 211 is sequentially pivotally connected to a first pivot member 44, a first driven member 42, and a second pivot member 45, and then the second pivot member 45 is pivotally connected to one end of a rear swing member 43. The rear swing member 43 is pivotally mounted on one side of the rear upright 14.

[0042] A swing assembly 50 includes at least a transverse swing seat 51, two connecting members 52, and two base rods 53. The transverse swing seat 51 is pivotally mounted on the rear support 111, and its two ends are pivotally connected to one end of each connecting member 52. The other end of each connecting member 52 is pivotally connected to each of the rear swing members 43. The rear ends of each base rod 53 are pivotally connected to each of the rear swing members 43, and the front ends of each base rod are pivotally connected to one end of a front swing member 54. The other ends of the two front swing members 54 are axially pivotally mounted on a rotating spindle 55 together with the two pivot ears 113.

[0043] A magnetic resistance mechanism 70 is installed at the front of the lower base frame 11 and is linked to the swing assembly 50, providing resistance to the swing assembly 50. The front of the lower base frame 11 is further provided with a pivot frame 115. The magnetic resistance mechanism 70 includes at least a rotatable pulley 71, a rotatable magnetic control wheel 72, a first transmission belt 73, and a second transmission belt 74. The magnetic control wheel 72 has a first pivot wheel 721 on one side of its axis. The first pivot wheel 721 and the pulley 71 are together wrapped around the second transmission belt 74. The pulley 71 has a second pivot wheel 711 on one side of its axis, and the pulley 71 and the second pivot wheel 711 are respectively pivotally mounted on the two sides of the pivot frame 115. The second pivot wheel 711 and one end of the rotating spindle 55 are together wrapped around the first transmission belt 73.

[0044] A lifting mechanism 90 is connected between the lower base frame 11 and the lifting frame 80. The lifting mechanism 90 drives the lifting frame 80 to swing, thereby causing the lower base frame 11 to change different lifting and tilting angles.

[0045] The lower frame 11 has a front cover plate 18 and a rear cover plate 19 on its upper side. The front cover plate 18 covers the magnetic resistance mechanism 70, and the rear cover plate 19 covers the swing assembly 50.

[0046] Among them, each of the two rear uprights 14 is further covered with a second cover 141, which is used to cover each of the pivot portion 211, the first pivot member 44, the first driven member 42 and the second pivot member 45.

[0047] The first driven member 42 may be a rod or a cable (as shown in the attached image). Figure 14 The structural form shown is as follows.

[0048] Secondly, the lower end of a handrail swing rod 40 is pivotally mounted on each side of the lower frame 11. A transverse driven rod 41 is pivotally connected to the middle section of each handrail swing rod 40. The other end of the transverse driven rod 41 is pivotally connected to the pivot part 211 of each main leg swing rod 21. A slot 121 is longitudinally provided in the two support side frames 12. The slot 121 allows each handrail swing rod 40 to pass through and swing. A first cover 122 is provided on the inner side of each of the two support side frames 12. Each first cover 122 is used to cover each transverse driven rod 41.

[0049] Based on the above structural and compositional design, the use and linkage of this application are explained as follows:

[0050] (I): First, as per Appendix Figure 1 ~Attached Figure 8 and appendix Figure 13 Example 1 shown:

[0051] (1) When using the device, the user first steps on each of the pedals 30 with both feet and swings the two drive leg swing arm assemblies 20 in a cross manner, so that the two drive leg swing arm assemblies 20 swing in an arc-shaped trajectory with alternating front and rear limit.

[0052] (2) When each of the drive leg swing arm assemblies 20 swings, it will sequentially drive each of the first pivot member 44, the first driven member 42, the second pivot member 45 and the rear swing member 43, and simultaneously pull the bottom rod 53 to make the front swing member 54 swing, thereby rotating the rotating spindle 55.

[0053] (3) As attached Figure 13As shown, when the rotating spindle 55 rotates, the magnetic control wheel 72 of the magnetic control resistance mechanism 70 is driven by the first transmission belt 73 through the pulley 71 to rotate. When the magnetic control wheel 72 rotates, it simultaneously feeds back the resistance in reverse sequence to the two drive leg swing arm assemblies 20.

[0054] (II): Secondly, as attached Figure 9 ~Attached Figure 12 Example 2 shown:

[0055] (1) When the user uses the device, he holds each of the handrails 40 with both hands and steps on each of the pedals 30 with both feet to swing the two drive leg swing arm assemblies 20, so that the two drive leg swing arm assemblies 20 swing in an arc-shaped trajectory with alternating front and rear limit.

[0056] (2) When each of the drive leg swing arm assemblies 20 swings, it will drive each of the handrail swing arms 40 to swing back and forth through the transverse driven rod 41. At the same time, it will also drive the first pivot 44, the first driven member 42, the second pivot 45 and the rear swing member 43 in sequence, and simultaneously pull the bottom rod 53 to make the front swing member 54 swing, thereby rotating the rotating spindle 55.

[0057] (3) When the rotating spindle 55 rotates, the magnetic control wheel 72 of the magnetic control resistance mechanism 70 is driven by the first transmission belt 73 through the pulley 71. When the magnetic control wheel 72 rotates, it simultaneously feeds back the resistance in reverse order to the two drive leg swing arm assemblies 20 and the handrail swing arm 40.

[0058] By utilizing the structure of the above specific embodiments, this application has the following beneficial effects:

[0059] (i) Because the front and rear sections of the pedal 30 are pivotally equipped with a secondary leg swing rod 22 and a primary leg swing rod 21, when the user uses the pedal 30 and steps on it with both feet, there will be no back-and-forth swaying or tilting. The user's feet can be firmly and safely placed on the pedal 30 without slipping and causing ankle sprains.

[0060] (ii) When the user's feet step on the pedal 30 and perform alternating leg raising and swinging, the pedal 30 will always remain horizontal and will not tilt back and forth. The user's feet can be firmly and safely placed on the pedal 30, preventing the whole person from falling off the frame leg raising machine and getting injured, or even the head hitting the various components of the frame leg raising machine, so that the user has a high degree of safety during use.

[0061] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A frame-type leg-raising machine with stable pedaling and swinging, characterized in that, include: A main frame includes a bottom frame, two supporting side frames, two front uprights and two rear uprights. The bottom frame is connected to the front and rear uprights of each of the supporting side frames on both sides. The two-drive leg swing arm assembly includes a main leg swing arm and a secondary leg swing arm. Each main leg swing arm and secondary leg swing arm has its upper end pivotally mounted on the rear upright and the supporting side frame as swing fulcrums, and swings in an alternating arc trajectory within the main frame. The lower ends of the secondary leg swing arm and the main leg swing arm are pivotally mounted on the front and rear sections of a pedal side, respectively. A pivot part extends from one side of the upper end of the main leg swing arm. Each pivot part is pivotally connected downward to the upper end of a follower. The lower end of the follower is pivotally connected to one end of a rear swing member. One side of the rear swing member is pivotally mounted on the rear upright. A swing assembly includes at least a transverse swing seat, two linkages, and two base rods. The transverse swing seat is pivotally mounted on the rear section of the lower base frame, and its two ends are pivotally connected to one end of each linkage. The other end of each linkage is pivotally connected to each of the rear swing members. The rear end of each base rod is pivotally connected to the other end of each of the rear swing members, and its front end is pivotally connected to one end of a front swing member. The other ends of the two front swing members are axially pivotally mounted on a rotating spindle. A magnetic resistance mechanism is installed at the front of the lower frame and connected to the swing assembly, and provides resistance to the swing assembly. The magnetic resistance mechanism includes at least a rotatable pulley, a rotatable magnetic control wheel, a first transmission belt and a second transmission belt. The magnetic control wheel has a first pivot wheel on one side of its shaft, and the first pivot wheel and the pulley are wrapped together around the second transmission belt. The pulley has a second pivot wheel on one side of its shaft, and the second pivot wheel and one end of the rotating spindle are wrapped together around the transmission belt.

2. The frame-type leg-raising machine with stable pedaling and swinging as described in claim 1, characterized in that: The two support side frames are connected to a front bracket on their front sides. The front bracket is connected to a placement rack, and each of the two support side frames is connected to a handrail frame.

3. The frame-type leg-raising machine with stable pedaling and swinging as described in claim 1, characterized in that: The lower end of each handrail swing arm is pivotally mounted on both sides of the bottom frame. One end of a transverse driven rod is pivotally connected to the middle section of each handrail swing arm, and the other end of the transverse driven rod is pivotally connected to the pivot joint of each main leg swing arm. Each of the two support side frames has a longitudinally penetrating groove, and each groove allows the handrail swing arm to pass through and swing.

4. The frame-type leg-raising machine with stable pedaling and swinging as described in claim 1, characterized in that: The support side frame is covered with a first cover, and the rear upright frame is covered with a second cover.

5. The frame-type leg-raising machine with stable pedaling and swinging as described in claim 1, characterized in that: Each of the two ends of the driven member is pivotally connected to a pivot member, and the other end of each pivot member is pivotally connected to the pivot part of the main leg swing arm and one end of the rear swing member, respectively.

6. The frame-type leg-raising machine with stable pedaling swing according to claim 1, characterized in that: The driven member is either a rod or a cable.

7. The frame-type leg-raising machine with stable pedaling swing according to claim 1, characterized in that: The lower frame is laterally connected to a front support, which has two pivot ears. The two pivot ears and two front swing members are pivotally connected to a rotating spindle.

8. The frame-type leg-raising machine with stable pedaling swing according to claim 1, characterized in that: A rear support is laterally connected to the rear section of the lower frame, and a lateral swing element seat is pivotally mounted on the rear support.

9. The frame-type leg-raising machine with stable pedaling and swinging as described in claim 1, characterized in that: The lower frame has a front cover and a rear cover on its upper side. The front cover covers the magnetic resistance mechanism, and the rear cover covers the swing assembly.

10. The frame-type leg-raising machine with stable pedaling swing according to claim 1, characterized in that: The bottom of the lower frame is pivotally connected to a swingable lifting frame. A lifting mechanism is connected between the lifting frame and the lower frame. The lifting mechanism drives the lifting frame to swing, thereby changing the lifting and tilting angles of the lower frame.

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