Flywheel Seated Calf Trainer

Abstract

The present application discloses a flywheel-type seated calf trainer, comprising: a frame, the frame including a rotatable rotating member; a leg pressing portion, the leg pressing portion being disposed on the rotating member; a weighted flywheel, the weighted flywheel being rotatably disposed on the frame via a flywheel shaft; a pull rope, the first end of the pull rope being connected to the flywheel shaft to reel in or release the pull rope via the rotating flywheel shaft; an adjustment device, the adjustment device being disposed on the rotating member and connected to the second end of the pull rope, wherein the adjustment device is movably disposed to adjust the maximum retractable amount of the pull rope on the flywheel shaft. The flywheel-type seated calf trainer provided by the present application not only enables the flywheel-type seated calf trainer to meet the needs of each user to achieve the best personal training effect for their calves, but also enables the flywheel-type seated calf trainer to meet the needs of users to perform calf training at their specified calf lifting height, thereby improving the user experience of the flywheel-type seated calf trainer.

Description

Technical Field

[0001] The present invention generally relates to the technical field of sports equipment, and in particular to a flywheel type seated calf trainer. Background Art

[0002] The flywheel-type seated calf trainer is a training device that allows users to train their calf muscles while sitting, using a weighted flywheel to provide training resistance. The flywheel-type seated calf trainer includes a frame, a seat mounted on the frame, a weighted flywheel, a rope, a footrest, and a leg press. The footrest and leg block are located on the same side of the seat, with the footrest located below the leg press. The leg press is equipped with a connecting rod that is rotatably connected to the frame via a rotating shaft, allowing the leg press to rotate toward or away from the footrest. One end of the rope is wound around the flywheel shaft of the weighted flywheel, forming a rope coil on the flywheel shaft, and the other end is connected to the end of the connecting rod. When using the calf trainer, the user sits on the seat, places their feet on the footrest, and positions the end of their thigh near the knee below and in contact with the leg press. The process of calf training by the user using the calf trainer is as follows: the user lifts the calf by lifting the heel to lift the leg press part. During the rising process, the leg press part drives the counterweight flywheel to rotate and releases the rope. When the counterweight flywheel reversely reels the rope, it drives the leg press part to descend. During the descent of the leg press part, the user's calf gradually falls back while blocking the descent of the leg press part.

[0003] Since different users have different calf lifting heights, the existing flywheel-type seated calf trainer cannot satisfy each user's best calf training effect when used by user groups with different calf lifting heights. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a flywheel type seated calf trainer.

[0005] The present application provides a flywheel type seated calf trainer, comprising:

[0006] A frame, the frame including a rotating member that is rotatably arranged;

[0007] A leg pressing part, which is arranged on the rotating part;

[0008] A counterweight flywheel, the counterweight flywheel is rotatably arranged on the frame via a flywheel shaft;

[0009] a pull rope, wherein a first end of the pull rope is connected to the flywheel shaft so as to be wound up or released by the rotating flywheel shaft;

[0010] The adjusting device is arranged on the rotating member and is connected to the second end of the pull rope, wherein the adjusting device is movably arranged to adjust the maximum retractable amount of the pull rope on the flywheel shaft.

[0011] Furthermore, the adjusting device is movably arranged to adjust the maximum retractable amount of the pull rope on the flywheel shaft by moving the adjusting device.

[0012] Furthermore, the rotating part is provided with a positioning structure, the positioning structure includes a plurality of positioning holes arranged at intervals along the moving direction of the adjusting device, the adjusting device includes a mounting seat and a positioning protrusion, the positioning protrusion and the plurality of positioning holes can be plugged into and matched, the positioning protrusion is movably arranged on the mounting seat in a direction close to or away from the positioning structure to switch between a first position and a second position, in the first position, the positioning protrusion is plugged into and matched with one of the positioning holes, and in the second position, the positioning protrusion and the positioning hole are separated.

[0013] Furthermore, the adjusting device also includes a driving member, which is movably arranged on the mounting seat. The driving member is provided with a guide groove, and the positioning protrusion is provided with a guide column. The guide column is inserted into the guide groove and cooperates with the guide groove. The guide groove includes an inclined portion inclined relative to the moving direction of the driving member, wherein the moving driving member drives the positioning protrusion to move through the inclined portion.

[0014] Furthermore, the adjustment device also includes an elastic member, the two ends of which are respectively connected to the mounting seat and the driving member. The elastic member is used to provide elastic force to the driving member, and the elastic force is used to drive the driving member to move, thereby driving the positioning protrusion to move from the second position to the first position.

[0015] Furthermore, the number of positioning protrusions is at least two, and the two positioning protrusions are respectively located at opposite ends of the mounting seat in a direction perpendicular to the moving direction of the adjusting device. The number of positioning structures and guide grooves is at least two, and at least two positioning structures and at least two guide grooves are arranged in a one-to-one correspondence with at least two positioning protrusions.

[0016] Furthermore, the guide groove also includes a first extension portion and / or a second extension portion, the first extension portion extends outward from one end of the inclined portion along the moving direction of the driving member, and the second extension portion extends outward from the other end of the inclined portion along the moving direction of the driving member.

[0017] Furthermore, the adjusting device further includes an operating member connected to the driving member.

[0018] Furthermore, a first mounting groove and a second mounting groove are provided in the mounting seat, the driving member is slidably set in the first mounting groove, one end of the second mounting groove extends to the first mounting groove and the other end extends to the outer surface of the mounting seat, and the positioning protrusion is slidably set in the second mounting groove, wherein the mounting seat is a split structure and includes a first base body and a second base body, the first base body and the second base body are fixedly connected, and the first mounting groove and the second mounting groove are respectively located on the first base body and the second base body.

[0019] Furthermore, it also includes a connecting member, the rotating member is provided with a mounting through hole, the mounting through hole is extended along the moving direction of the adjusting device, the connecting member is passed through the mounting through hole and the two ends are respectively located on both sides of the mounting through hole, one end of the connecting member is connected to the adjusting device and a limiting portion is provided at the other end, the distance between the limiting portion and the adjusting device is greater than the depth of the mounting through hole, and the limiting portion is used to cooperate with the edge limit of the mounting through hole on the side away from the adjusting device.

[0020] The flywheel-type seated calf trainer provided in the present application connects one end of a pull rope to a flywheel shaft equipped with a flywheel and the other end to an adjusting device, and the adjusting device is movably arranged on a rotating part to adjust the maximum retractable amount of the pull rope on the flywheel shaft. This not only enables the flywheel-type seated calf trainer to allow each user to adjust the maximum retractable amount of the pull rope on the flywheel shaft according to their own calf lifting height, but also enables the flywheel-type seated calf trainer to meet the needs of each user to achieve the best personal training effect for their calves. At the same time, the flywheel-type seated calf trainer can also meet the needs of users to perform calf training at their specified calf lifting height, thereby improving the user experience of the flywheel-type seated calf trainer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 A three-dimensional schematic diagram of a flywheel-type seated calf trainer provided in an embodiment of the present application;

[0023] Figure 2 Figure 1 Enlarged view of part C in ;

[0024] Figure 3 A three-dimensional schematic diagram of an adjustment device provided in an embodiment of the present application;

[0025] Figure 4 for Figure 3 An exploded schematic diagram of the structure shown;

[0026] Figure 5 A schematic diagram of a portion of the structure of the adjustment device provided in an embodiment of the present application when the positioning protrusion is in the first position;

[0027] Figure 6 A schematic diagram of the partial structure of the adjustment device provided in an embodiment of the present application when the positioning protrusion is in the second position. DETAILED DESCRIPTION

[0028] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0029] An embodiment of the present application provides a flywheel-type seated calf trainer for allowing a user to perform heel raise training in a seated position, thereby training the user's calf muscles.

[0030] Please refer to the attached Figure 1-2 The flywheel-type seated calf trainer provided in an embodiment of the present application includes a frame 10, a pedal portion 20, a seat portion 30, a leg press portion 40, a pull rope 50, a counterweight flywheel 60 and an adjustment device 70. The frame 10 includes a frame body 11 and a rotating member 12, and the rotating member 12 is rotatably arranged on the frame body 11. In the rotation direction, the rotating member 12 has a plurality of rotation positions arranged at intervals along the rotation direction, and the plurality of rotation positions include an initial position. The leg press portion 40 is arranged on the rotating member 12, and the leg press portion 40 moves with the rotating member 12. The seat portion 30 and the pedal portion 20 are both arranged on the frame body 11, the pedal portion 20 and the leg press portion 40 are located on the same side of the seat portion 30, and the pedal portion 20 is located below the leg press portion 40. The counterweight flywheel 60 includes a wheel body 61 and a flywheel shaft 62, the wheel body 61 is mounted on the flywheel shaft 62, and the counterweight flywheel 60 is rotatably arranged on the frame body 11 through the flywheel shaft 62. The first end of the pull rope 50 is connected to the flywheel shaft 62 so as to be wound or released by the rotating flywheel shaft 62. The adjustment device 70 is connected to the second end of the pull rope 50, wherein the adjustment device 70 is movably provided on the rotating member 12 to adjust the maximum amount of the pull rope 50 that can be wound on the flywheel shaft 62.

[0031] The process of a user performing heel raise training using the flywheel seated calf trainer is as follows: the user sits on the seat 30, places the feet on the footrest 20, and the thigh is located below and in contact with the leg pressing part 40, and then performs heel raise training. The heel raise training includes heel raise movement training and heel return movement training performed in sequence. The heel raise movement is the movement of the user's calf contracting and exerting force to lift the heel, and the heel return movement is the movement of the user's heel slowly falling back.

[0032] The rotation direction of the rotating member 12 includes a first rotation direction and a second rotation direction that are opposite. During the heel-lifting movement, the rotating member 12 rotates along the first rotation direction, and during the heel-back movement, the rotating member 12 rotates along the second rotation direction. It can be understood that the initial position of the rotating member 12 refers to the starting position of the rotating member 12 along the first rotation direction. The pull rope 50 includes a first end, a second end, and a main rope segment located between the first end and the second end. The pull rope 50 is connected to the flywheel shaft 62 through the first end and is connected to the adjustment device 70 through the second end. It can be understood that the maximum retractable amount of the pull rope 50 on the flywheel shaft 62 refers to the maximum length of the main rope segment that can be retracted on the flywheel shaft 62 when the rotating member 12 is located at a certain rotation position (which can be but is not limited to the initial position), and when the main rope segment is retracted to the maximum length on the flywheel shaft 62, the portion of the main rope segment that is not retracted to the flywheel shaft 62 is in a taut state. As shown in the attached figure Figure 1 In the structure shown, the first rotation direction is shown by arrow A.

[0033] It is understood that achieving a personal best training effect on the user's calf means: 1. During the heel raise exercise, the user's heel can be raised to the maximum height (i.e., the maximum physiological height that the user's heel can be raised), and the user's calf is continuously subjected to training resistance applied by the weighted flywheel 60 during the heel raise; and 2. The rotational inertia of the weighted flywheel 60 when the user's heel is raised to the maximum height immediately forms training resistance for the heel pull-back exercise. The calf trainer enables users with different heel raise heights to achieve the above-mentioned personal best training effect when performing seated heel raise exercises under the following conditions: 1. When the rotating member 12 is in the initial position, the flywheel shaft 62 reels the main rope segment according to the maximum retractable amount and forms the maximum rope roll on the flywheel shaft 62; and 2. When the user's heel is raised to the maximum height, the maximum rope roll wound on the flywheel shaft 62 is just fully released. Based on the above implementation conditions, users with different calf lift heights can all achieve their personal optimal calf training effect by adjusting the maximum retractable amount using the adjustment device 70. Furthermore, users can also adjust the maximum retractable amount to a specified amount using the adjustment device 70 to enable heel raise training at a specified calf lift height.

[0034] Based on the above-mentioned implementation conditions, the process of the user performing heel raise training based on the personal best training effect is as follows: the user performs heel raises to lift the heel and calf, the lifted calf drives the leg press part 40 to move upward through the thigh, the upward moving leg press part 40 drives the rotating part 12 to rotate from the initial position along the first rotation direction, the rotating rotating part 12 drives the counterweight flywheel 60 to rotate through the pull rope 50 and releases the maximum rope roll formed by winding the pull rope 50 on the flywheel shaft 62, and when the user's heel is lifted to the highest height, the maximum rope roll on the flywheel shaft 62 is just filled. When the heel lift is fully released (the heel lift ends and the heel return begins), the flywheel 60 continues to rotate under the action of rotational inertia after the maximum rope roll is fully released and immediately reverses the drawstring 50 via the flywheel shaft 62. The flywheel shaft 62 drives the rotating member 12 to rotate along the second rotation direction when reversely rewinding the drawstring 50. The rotating rotating member 12 drives the leg press 40 to move downward. The descending leg press 40 is hindered by the user's thigh and slowly moves downward along with the user's calf and heel until the user's heel is restored (the heel return ends at this time). In the above-mentioned process of performing calf training based on personal best training effect, the user's heel can be raised to the maximum height when performing the heel lift, and the user's calf is constantly contracting and exerting force throughout the entire process of the heel lift. When the user performs the heel return, the rotational inertia of the flywheel 60 when the user's heel is raised to the maximum height forms the training resistance of the heel return to the greatest extent, thereby achieving the best training effect for the calf.

[0035] In this embodiment, the maximum retractable amount of the pull rope 50 on the flywheel shaft 62 is adjusted by the adjustment device 70, which not only enables the flywheel seated calf trainer to allow each user to adjust the maximum retractable amount of the pull rope 50 on the flywheel shaft 62 according to their own calf lifting height, but also enables the flywheel seated calf trainer to meet the needs of each user to achieve the best personal training effect for the calf. At the same time, the flywheel seated calf trainer can also meet the needs of users to perform calf training at their specified calf lifting height, thereby improving the user experience of the flywheel seated calf trainer.

[0036] It is understood that the normal position of the rotating member 12 when the calf trainer is not being used by the user for heel raise training is the initial position. When the rotation connection position is located between the two ends of the rotating member 12, the embodiment of the rotating member 12 remaining in the initial position may be, but is not limited to: Please refer to the attached Figure 1 The portion of the top end of the rotating rod located on the side of the rotating connection position away from the leg-pressing portion 40 abuts and cooperates with the frame 11, so that the rotating rod is maintained in the initial position under the combined action of the leg-pressing portion 40 and the frame 11. When the rotating connection position is located at the end of the rotating rod, the embodiment in which the rotating member 12 is maintained in the initial position may be, but is not limited to: the rotating rod and the frame 11 may be connected by a flexible cable, so that the rotating rod is maintained in the initial position under the combined action of the leg-pressing portion 40 and the flexible cable.

[0037] The rotating member 12 is rotatably connected to the frame 11 via a rotating connection structure, and the rotating connection structure can be, but is not limited to, a rotating shaft. The rotating member 12 has a rotating connection position connected to the rotating structure, and the rotating connection position can be located at one end of the rotating member 12 or between the two ends of the rotating member 12. The leg pressing portion 40 is located on one side of the rotating connection position so that the leg pressing portion 40 can move under the driving force of the rotating member 12. Preferably, please refer to the attached Figure 1 The rotating member 12 and the frame 11 are rotatably connected via a rotating shaft, and the rotating connection position on the rotating member 12 connected to the rotating shaft is located between the two ends of the rotating member 12, and the leg pressing portion 40 is located at the end of the rotating member 12 away from the frame 11.

[0038] The shape of the pull rope 50 can be, but is not limited to, a round rope, a belt, etc., and the rotating member 12 can be, but is not limited to, a rod, a plate, etc. Preferably, please refer to the attached Figure 1 The rotating member 12 is a rotating rod, and the pull rope 50 is a pull belt.

[0039] The position of the counterweight flywheel 60 on the frame 11 can be reasonably set according to the spatial layout requirements, for example, it can be set below the seat 30 or on the side of the seat 30 away from the leg pressing part 40, etc. This application does not limit this. Figure 1 The weighted flywheel 60 is located below the seat 30, which not only reduces the volume of the calf trainer and contributes to the miniaturized design of the calf trainer, but also helps to avoid the risk of contact between the user sitting on the calf trainer and the weighted flywheel 60, thereby improving the safety performance of the calf trainer.

[0040] Please refer to the attached Figure 1-2 In some embodiments of the present application, the adjusting device 70 is movably provided to adjust the maximum retractable amount of the pull rope 50 on the flywheel shaft 62 by moving the adjusting device 70 .

[0041] In this embodiment, the principle of adjusting the maximum retractable amount by the adjusting device 70 is: based on the condition that the total length of the main rope segment is a constant value, the length of the part of the main rope segment that cannot be retracted by the flywheel shaft 62 is changed by moving the adjusting device 70, thereby adjusting the maximum retractable amount of the pull rope 50 on the flywheel shaft 62.

[0042] The present application does not have any specific restrictions on the movement direction of the adjustment device 70, as long as the movement direction can satisfy the maximum retractable amount when the adjustment device 70 moves along the movement direction. For example, the movement direction of the adjustment device 70 can be perpendicular or inclined relative to the rotation axis of the rotating member 12. In addition, in order to enable the flywheel shaft 62 to reel or release the pull rope 50 in a more orderly and uniform manner, the axis of the flywheel shaft 62 is preferably arranged perpendicular to the movement direction of the rotating member 12.

[0043] Preferably, please refer to the attached Figure 1 The counterweight flywheel 60 is located below the seat 30, and the end of the rotating rod away from the leg pressing part 40 is located between the flywheel shaft 62 and the seat 30. The rotation axis of the rotating rod is parallel to the axis of the flywheel shaft 62, and the adjusting device 70 is movably arranged on the rotating rod along the axial direction of the rotating rod. The frame 11 is provided with a first guide roller 13 and the first guide roller 13 is located on the side of the seat 30 away from the leg pressing part 40. The first end of the pull rope 50 is connected to the flywheel shaft 62 and the second end passes around the first guide roller 13 from above and is connected to the adjusting device 70. When the adjusting device 70 moves along the axial direction of the rotating rod toward the leg pressing part 40, the maximum retractable amount gradually decreases. When the adjusting device 70 moves along the axial direction of the rotating rod away from the leg pressing part 40, the maximum retractable amount gradually increases. In addition, in order to reduce the wear between the pull rope 50 and the rotating rod and to guide the movement of the pull rope 50 during the rotation of the rotating rod, a guide roller assembly can be provided at the end of the rotating rod away from the leg pressing part 40. The guide roller assembly includes two opposite second guide rollers 14, and a guide gap is formed between the two second guide rollers 14 for the pull rope 50 to pass through. The second end of the pull rope 50 passes around the first guide roller 13 from above the first guide roller 13 and passes through the guide gap and is connected to the adjusting device 70.

[0044] It is understandable that the implementation method of the adjustment device 70 for adjusting the maximum retractable amount is not limited to the implementation method of this embodiment. For example, in other embodiments, the adjustment device 70 can be rotatably arranged to reel in or release the pull rope 50 to adjust the maximum retractable amount. Specifically, the adjustment device 70 includes a first reel, which is rotatably arranged on the rotating member 12 and can be fixed in the rotation direction. The pull rope 50 is reeled in or released by the rotation of the first reel to adjust the maximum retractable amount. The outer peripheral surface of the end of the first reel can be provided with a plurality of sockets, the rotating member 12 is provided with a mounting tube, and a plug is provided in the mounting tube, and the plug can be moved in the mounting tube. The plug can be plugged into and matched with any socket to fix the first reel in the current position.

[0045] Please refer to the attached Figure 3-6In some embodiments of the present application, the rotating member 12 is provided with a positioning structure, which includes a plurality of positioning holes 123 spaced apart along the direction of movement of the adjusting device 70. The adjusting device 70 includes a mounting seat 71 and a positioning protrusion 72. The positioning protrusion 72 is pluggable with the plurality of positioning holes 123. The positioning protrusion 72 is movably disposed on the mounting seat 71 in a direction approaching or away from the positioning structure to switch between a first position and a second position. In the first position, the positioning protrusion 72 is pluggable with one of the positioning holes 123. The pluggable positioning protrusion 72 and the positioning hole 123 enable the adjusting device 70 and the rotating member 12 to be positioned along the direction of movement of the adjusting device 70, thereby positioning the adjusting device 70 at the current position. In the second position, the positioning protrusion 72 and the positioning hole 123 are separated to release the positioning engagement, at which point the user can move the adjusting device 70 to adjust the maximum retractable amount.

[0046] When the user needs to adjust the maximum retractable amount, the user can first move the positioning protrusion 72 to the second position, then move the adjustment device 70 to the target position and then move the positioning protrusion 72 to the first position to adjust the position to the target position. In this embodiment, the structure for achieving the position movement of the adjustment device 70 is simple and easy to implement, and the movement operation of the adjustment device 70 is simple and convenient.

[0047] Preferably, please refer to the attached Figure 1-2 The moving direction of the positioning protrusion 72 is perpendicular to the moving direction of the adjusting device 70 , and the moving direction of the positioning protrusion 72 is parallel to the rotation axis of the rotating member 12 .

[0048] The shape of the positioning protrusion 72 may be, but is not limited to, cylindrical, prismatic, etc., and the shape of the positioning hole 123 is adapted to the shape of the positioning protrusion 72 .

[0049] Preferably, please refer to the attached Figure 1-2 The drive member 73 is a drive rod with an open bottom. The drive rod comprises a top plate 121 and two opposing side plates 122. The side plates 122 are fixedly connected to either side of the top plate 121. The top plate 121 and the side plates 122 together enclose a rod cavity for the drive rod. The adjustment device 70 is mounted within the rod cavity, with the positioning structure located on the side plates 122.

[0050] Of course, the embodiment for achieving the position movement of the adjusting device 70 is not limited to that of this embodiment. For example, in other embodiments, the rotating member 12 is provided with a plurality of threaded connection holes spaced apart along the moving direction, and the adjusting device 70 is screwed to any of the threaded connection holes via a screw connection member.

[0051] Please refer to the attached Figure 3-6In some embodiments of the present application, the adjustment device 70 also includes a driving member 73, which is movably arranged on the mounting seat 71. The driving member 73 is provided with a guide groove 731, and the positioning protrusion 72 is provided with a guide column 724. The guide column 724 is inserted into the guide groove 731 and guided by the guide groove 731. The guide groove 731 includes an inclined portion 732, and the inclined portion 732 is inclined relative to the moving direction of the driving member 73. The moving driving member 73 drives the positioning protrusion 72 to move through the inclined portion 732.

[0052] The moving direction of the driving member 73 can be, but is limited to: the moving direction of the driving member 73 is perpendicular to the moving direction of the positioning protrusion 72, or the moving direction of the driving member 73 is inclined relative to the moving direction of the positioning protrusion 72. The moving direction of the driving member 73 specifically includes a first direction and a second direction that are opposite to each other. When the driving member 73 moves along the first direction, it can drive the positioning protrusion 72 to switch from the second position to the first position. When the driving member 73 moves along the second direction, it can drive the positioning protrusion 72 to switch from the first position to the second position. Preferably, please refer to the attached Figure 3 、 5 and 6, the moving direction of the driving member 73 is parallel to the moving direction of the adjusting device 70, and the first direction is as shown by arrow B.

[0053] The guide groove 731 may penetrate the driving member 73 or not penetrate the driving member 73 along the thickness direction of the driving member 73. When the guide groove 731 penetrates the driving member 73, the guide post 724 may pass through the guide groove 731 or not pass through the guide groove 731. Figure 4 As shown, the driving member 73 is plate-shaped, with a guide groove 731 extending through the driving member 73 along its thickness. A slot 721 is recessed on the end surface of the positioning protrusion 72 near the driving member 73, and both ends of the slot 721 extend to the outer peripheral surface of the positioning protrusion 72. Opposite side walls of the slot 721 are respectively provided with a first mounting hole 722 and a second mounting hole 723. The first mounting hole 722 and the second mounting hole 723 are coaxially arranged, and the first mounting hole 722 extends through the side wall where it is located. The driving member 73 is movably inserted into the slot 721, and the guide post 724 passes through the first mounting hole 722, the guide groove 731, and the second mounting hole 723 in sequence, and the guide post 724 is interference-fitted with the second mounting hole 723. This arrangement can prevent the guide post 724 from being separated from the guide groove 731.

[0054] Please refer to the attached Figure 3-6In some embodiments of the present application, the adjustment device 70 further includes an elastic member 74, the ends of which are connected to the mounting base 71 and the driving member 73, respectively. The elastic member 74 is used to provide an elastic force to the driving member 73, and the elastic force is used to drive the driving member 73 to move, thereby driving the positioning protrusion 72 from the second position to the first position. This configuration not only enables the driving member 73 to move in the first direction under the elastic force provided by the elastic member 74 to drive the positioning protrusion 72 from the second position to the first position without user intervention, but also makes it easier for the driving member 73 to move in the second direction, thereby reducing the risk of the driving member 73 moving in the second direction due to user error.

[0055] The present application has no specific limitation on the position of the elastic member 74, as long as the elastic member 74 can apply elastic force along the first direction to the driving member 73. For example, the elastic member 74 can be arranged on one side of the driving member 73 along the first direction. Figure 4-6 The elastic member 74 is located on the upstream side of the driving member 73 along the first direction. When the positioning protrusion 72 is in the second position, the elastic member 74 is compressed between the driving member 73 and the mounting seat 71. In order to limit the displacement of the elastic member 74, a limiting rod 75 is provided on the upstream side of the driving member 73 along the first direction. The elastic member 74 is sleeved on the outer circumference of the limiting rod 75.

[0056] The elastic member 74 may be, but is not limited to, a spring or an elastic rubber sleeve, etc., and this embodiment does not impose any limitation on this.

[0057] To facilitate user adjustment of the position of the positioning protrusion 72, an operating member 76 is fixedly mounted on the driving member 73. The user can use the operating member 76 to move the driving member 73, thereby adjusting the position of the positioning protrusion 72. The operating member 76 can be, but is not limited to, an operating lever, etc., and this embodiment does not limit this.

[0058] In some embodiments of the present application, there are at least two positioning protrusions 72, each located at opposite ends of the mounting base 71 in a direction perpendicular to the direction of movement of the adjustment device 70. There are at least two positioning structures and at least two guide grooves 731, each corresponding one-to-one to the at least two positioning protrusions 72. This arrangement can improve the positional stability of the adjustment device 70 on the rotating member 12, and particularly improve the positional stability of the adjustment device 70 on the rotating member 12 when the positioning protrusions 72 are in the first position.

[0059] Preferably, please refer to the attached Figure 2The two positioning structures are located on the two side panels of the rotating rod. It is understood that when there is only one positioning structure, in order to prevent the adjustment device 70 from deflecting when pulled by the pull rope 50, the two sides of the mounting seat 71 of the adjustment device 70 can be respectively contacted with the two side walls to form a rotation-proof fit between the adjustment device 70 and the driving rod.

[0060] Please refer to the attached Figure 4-6 In some embodiments of the present application, the guide groove 731 further includes a first extension portion 733 and / or a second extension portion 734. The first extension portion 733 extends outward from one end of the inclined portion 732 along the moving direction of the driving member 73, and the second extension portion 734 extends outward from the other end of the inclined portion 732 along the moving direction of the driving member 73. The term "outward extension" herein refers to extending away from the inclined portion 732.

[0061] Preferably, please refer to the attached Figure 4-6 The first extension portion 733, the inclined portion 732, and the second extension portion 734 are arranged along the first direction. When the guide post 724 moves within the first extension portion 733, it maintains the positioning protrusion 72 in the first position, preventing the driving member 73 from automatically switching to the second position without the action of external force. When the guide post 724 moves within the second extension portion 734, it maintains the positioning protrusion 72 in the second position, preventing the driving member 73 from automatically switching to the first position without the action of external force.

[0062] Please refer to the attached Figure 1-2 In some embodiments of the present application, a connecting member is further included. The rotating member 12 is provided with a mounting through-hole 124. The mounting through-hole 124 is extended along the moving direction of the adjusting device 70. The connecting member is passed through the mounting through-hole 124 and its two ends are respectively located on both sides of the mounting through-hole 124. One end of the connecting member is connected to the adjusting device 70 and a limiting portion is provided at the other end. The distance between the limiting portion and the adjusting device 70 is greater than the depth of the mounting through-hole 124. The limiting portion is used to engage with the edge of the mounting through-hole 124 on the side away from the adjusting device 70. The adjusting device 70 is connected to the adjusting device 70 via the connecting member, which not only enables the adjusting device 70 to be movable, but also prevents the adjusting device 70 from falling off the driving member 73.

[0063] Preferably, please refer to the attached Figure 1-2 The connecting member is a connecting screw 15, the rod head of the screw constitutes a limiting portion, and the screw is screwed to the mounting seat 71 of the adjusting device 70. The mounting through hole 124 is provided on the top wall of the driving rod.

[0064] Please refer to the attached Figure 4-6In some embodiments of the present application, the mounting base 71 is provided with a first mounting groove 713 and a second mounting groove 714. One end of the second mounting groove 714 extends to the first mounting groove 713 and the other end extends to the outer surface of the mounting base 71. The driving member 73 is slidably mounted in the first mounting groove 713, and the positioning protrusion 72 is slidably mounted in the second mounting groove 714. With this arrangement, the first mounting groove 713 not only accommodates the driving member 73 but also guides its movement, thereby limiting its direction of movement. The second mounting groove 714 not only accommodates the positioning protrusion 72 but also guides its movement, thereby limiting its direction of movement. The mounting base 71 is a split structure comprising a first base body 711 and a second base body 712, which are fixedly connected to each other. The first mounting groove 713 and the second mounting groove 714 are respectively located in the first base body 711 and the second base body 712. This arrangement facilitates assembly and disassembly of the adjustment device 70.

[0065] Among them, in the first position, the positioning protrusion 72 extends out of the second mounting groove 714 and is inserted into the positioning hole 123; in the second position, the positioning protrusion 72 and the positioning hole 123 are separated. At this time, the positioning protrusion 72 can be in a state of being received in the second mounting groove 714 or partially extending out of the second mounting groove 714 and spaced apart from the positioning hole 123.

[0066] The number of the second mounting grooves 714 is the same as the number of the positioning protrusions 72 and the two are arranged in a one-to-one correspondence. For example, when there are two positioning protrusions 72, there are two second mounting grooves 714 and they are located on both sides of the first mounting groove 713.

[0067] Among them, preferably, please refer to the attached Figure 4-6The mounting seat 71 may also be provided with a third mounting groove 715, which is arranged to intersect with the first mounting groove 713. The third mounting groove 715 is used to accommodate the elastic member 74 and the limiting rod 75. In order to reduce the length of the mounting seat 71 along the moving direction, the mounting seat 71 is provided with an avoidance through-hole 718. The avoidance through-hole 718 is located on the side of the elastic member 74 away from the driving member 73, so as to allow the support rod to pass through the avoidance through-hole 718 and exit the mounting seat 71. In order to facilitate the processing of the third mounting groove 715 and the first mounting groove 713, one end of the third mounting groove 715 and the first mounting groove 713 both extend to the side of the mounting seat 71 and form an open area on the side. In this case, a cover plate 717 can be provided to cover the open area to cover the open area, and the cover plate 717 and the first base body 711 and / or the second base body 712 can be detachably fixed to the mounting seat 71 by means of screw connection or the like. The avoidance hole 718 is located on the cover plate 717, and the shape of the mounting hole 124 matches the shape of the limiting rod 75 so that only the limiting rod 75 can pass through the mounting hole 124. The third mounting slot 715 is located in the first base 711 and the second base 712 respectively.

[0068] The present application has no specific restrictions on the connection method between the drawstring 50 and the adjustment device 70, for example but not limited to: a first connection lock buckle is provided at one end of the adjustment device 70, a second connection lock buckle is provided at the second end of the drawstring 50, and the first connection lock buckle and the second connection lock buckle are detachably buckled. Figure 4-6The mounting seat 71 is provided with a fourth mounting slot 716, which is located on one side of the first mounting slot 713 and extends through the mounting seat 71 in a direction perpendicular to the movement direction of the adjustment device 70. The fourth mounting slot 716 includes a first slot section 7161 and a second slot section 7162. The second slot section 7162 is located on the side of the first slot section 7161 away from the first mounting slot 713 and extends to the side of the mounting seat 71 away from the first slot section 7161. The second slot section 7162 is configured as a constricted portion. The second end of the drawstring 50 has a sewing position, which is spaced apart from the end of the second end. The second end of the drawstring 50 is rewound and sewn to the sewing position to form a reel mounting cavity, within which the second reel 77 is mounted. The second end of the pull cord 50, with the second reel 77 mounted thereon, can be installed into or removed from the fourth mounting slot 716 on a side perpendicular to the direction of movement of the adjustment device 70. When installed in the fourth mounting slot 716, the portion of the second end of the pull cord 50 wound around the second reel 77 and the second reel 77 are both located in the first slot section 7161, while the remaining portion of the second end of the pull cord 50 extends out of the fourth mounting slot 716 through the second slot section 7162. The second reel 77 in the second slot section 7162 can limit the second rotating shaft, restricting movement of the second reel 77 along the direction of movement of the adjustment device 70, thereby constraining the second reel 77 within the first slot section 7161. The fourth mounting slot 716 is located in both the first base 711 and the second base 712.

[0069] Among them, preferably, please refer to the attached Figure 2-4 The second base body 712 is located on a side of the first base body 711 away from the top plate 121, and the connecting member is connected to the first base body 711. A relief groove 7121 is recessed on the side of the second base body 712 away from the first base body 711. The relief groove 7121 extends to the first mounting groove 713. The operating member 76 passes through the movable through hole and extends out of the relief groove 7121. The relief groove 7121 extends along the movement direction of the driving member 73 to allow the operating member 76 to move within the movable groove under the drive of the driving member 73.

[0070] Please refer to the attached Figure 1 In some embodiments of the present application, the leg press section 40 includes a leg press structure and a mounting member, the mounting member being connected to the rotating member 12, the leg press structure being mounted on the mounting member, and the height of the leg press structure being adjustable. This arrangement allows the distance between the leg press structure and the footrest 20 to be adjusted to meet the varying needs of users for the distance between the leg press structure and the footrest 20, thereby broadening the range of users for whom the calf trainer is applicable.

[0071] Among them, preferably, please refer to the attached Figure 1, the mounting piece is a mounting rod 41, and the leg-pressing structure includes two leg-pressing pieces 42, a sleeve 43 and a latch 44. The two leg-pressing pieces 42 are fixedly connected to the mounting rod 41 and are located on both sides of the connecting rod. The sleeve 43 is sleeved on the mounting rod 41, and the sleeve 43 is provided with a first height adjustment hole. The mounting rod 41 is provided with a plurality of second height adjustment holes 411. The sleeve 43 can move axially along the mounting rod 41 and the first height adjustment hole can be coaxially arranged with different second height adjustment holes 411 during the movement. When the first height adjustment hole is coaxially arranged with different second height adjustment holes 411, the height of the leg-pressing structure is different. The latch 44 is pluggable and inserted into the coaxially arranged first height adjustment hole and second height adjustment hole 411 to position the leg-pressing structure at the current height. The leg-pressing piece 42 can be, but is not limited to, a leg-pressing shaft, a leg-pressing block, etc.

[0072] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means more than three.

[0073] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A flywheel type seated calf trainer, characterized in that: include: a frame, the frame including a rotating member rotatably arranged; a leg pressing portion, the leg pressing portion being arranged on the rotating member; A counterweight flywheel, the counterweight flywheel being rotatably disposed on the frame via a flywheel shaft; a pull rope, wherein a first end of the pull rope is connected to the flywheel shaft so as to be wound up or released by the rotating flywheel shaft; an adjusting device, the adjusting device being disposed on the rotating member, the adjusting device being connected to the second end of the pull rope, the adjusting device being movably disposed so as to adjust a maximum retractable amount of the pull rope on the flywheel shaft by movement of the adjusting device; Wherein, the rotating member is provided with a positioning structure, the positioning structure includes a plurality of positioning holes arranged at intervals along the moving direction of the adjusting device, the adjusting device includes a mounting seat and a positioning protrusion, the positioning protrusion and the plurality of positioning holes can be plugged and matched, the positioning protrusion is movably arranged on the mounting seat along the direction close to or away from the positioning structure to switch between a first position and a second position, when in the first position, the positioning protrusion is plugged and matched with one of the positioning holes, when in the second position, the positioning protrusion and the positioning hole are separated, the adjusting device also includes a driving member, the driving member The cam is movably arranged on the mounting seat, the driving member is provided with a guide groove, and the positioning protrusion is provided with a guide column. The guide column is inserted into the guide groove and cooperates with the guide groove guide. The guide groove includes an inclined portion inclined relative to the moving direction of the driving member, wherein the moving driving member drives the positioning protrusion to move through the inclined portion. The adjusting device also includes an elastic member, and the two ends of the elastic member are respectively connected to the mounting seat and the driving member. The elastic member is used to provide elastic force to the driving member, and the elastic force is used to drive the driving member to move, so as to drive the positioning protrusion to move from the second position to the first position.

2. The flywheel type seated calf trainer according to claim 1, characterized in that: The number of the positioning protrusions is at least two, and the two positioning protrusions are respectively located at opposite ends of the mounting seat in a direction perpendicular to the moving direction of the adjusting device. The number of the positioning structures and the guide grooves are both at least two, and at least two of the positioning structures and at least two of the guide grooves are arranged in a one-to-one correspondence with at least two of the positioning protrusions.

3. The flywheel type seated calf trainer according to claim 1, characterized in that: The guide groove further includes a first extension portion and / or a second extension portion, wherein the first extension portion extends outward from one end of the inclined portion along the moving direction of the driving member, and the second extension portion extends outward from the other end of the inclined portion along the moving direction of the driving member.

4. The flywheel type seated calf trainer according to claim 1, characterized in that: The adjusting device further includes an operating member connected to the driving member.

5. The flywheel type seated calf trainer according to claim 1, characterized in that: A first mounting groove and a second mounting groove are provided in the mounting base, the driving member is slidably set in the first mounting groove, one end of the second mounting groove extends to the first mounting groove and the other end extends to the outer surface of the mounting base, and the positioning protrusion is slidably set in the second mounting groove, wherein the mounting base is a split structure and includes a first base body and a second base body, the first base body and the second base body are fixedly connected, and the first mounting groove and the second mounting groove are respectively located on the first base body and the second base body.

6. The flywheel type seated calf trainer according to claim 1, characterized in that: It also includes a connecting member, the rotating member is provided with a mounting through hole, the mounting through hole is extended along the moving direction of the adjusting device, the connecting member is passed through the mounting through hole and the two ends are respectively located on both sides of the mounting through hole, one end of the connecting member is connected to the adjusting device and a limiting portion is provided at the other end, the distance between the limiting portion and the adjusting device is greater than the depth of the mounting through hole, and the limiting portion is used to cooperate with the edge limit of the mounting through hole on the side away from the adjusting device.

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