Pedal trainer

Abstract

The utility model discloses a pedal training device which comprises a rack, a crank rocker assembly and a stepping assembly. The crank rocker assembly comprises a swinging part, a crank part and a connecting rod, the upper ends of the swinging part and the crank part are rotatably connected with the rack, the front end of the connecting rod is rotatably connected with the swinging part, and the rear part of the connecting rod is rotatably connected with the crank part; the stepping assembly comprises a connecting piece, a linkage rod and a pedal located above the connecting rod, the pedal and the connecting rod can be matched in a front-back sliding mode, the connecting piece is fixedly connected with the pedal, one end of the linkage rod is rotatably connected with the connecting piece, and the other end of the linkage rod is rotatably connected with the lower end of the swing piece or the crank piece. The connecting point of the swing piece and the rack is lower than or flush with the highest point of the pedal in the moving process. According to the pedal training device, the small packaging size can be achieved, and meanwhile the large movement stride can be guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fitness training equipment, in particular to a foot training device. BACKGROUND

[0002] The foot training device, especially the foot training device with an elliptical path, is also called an elliptical machine. The elliptical machine is favored by many fitness enthusiasts due to its low impact and full-body exercise advantages. The large stride elliptical machine can make the exerciser's leg muscles be stretched and exercised more fully during the exercise process, enhance the heart and lung function, and improve the fitness effect. Therefore, the large stride is also an important factor for many users to consider when selecting an elliptical machine.

[0003] The current elliptical machine usually adopts a crank rocker mechanism, and a foot pedal is arranged on a connecting rod to realize an elliptical trajectory movement. In order to realize a large stride, the current elliptical machine often adopts a longer crank or a larger size transmission structure, which inevitably leads to an increase in the floor area of the entire elliptical machine, and the volume is large, so that the packaging and storage size of the entire elliptical machine are large, and the transportation cost is increased.

[0004] The above content is only used to assist in understanding the technical scheme of the utility model, and does not represent that the above content is prior art. CONTENT OF THE UTILITY MODEL

[0005] In view of the above problems, the utility model provides a foot training device, which aims to solve the technical problem that the current foot training device cannot consider both a small packaging size and a large stride.

[0006] In order to realize the above purpose, the foot training device provided by the utility model comprises a rack, a crank rocker assembly and a stepping assembly.

[0007] The crank rocker assembly comprises a swing piece, a crank piece and a connecting rod, the upper end of the swing piece and the upper end of the crank piece are rotatably connected with the rack, the front end of the connecting rod is rotatably connected with the swing piece, and the rear part of the connecting rod is rotatably connected with the crank piece.

[0008] The stepping assembly comprises a connecting piece, a linkage rod and a foot pedal located above the connecting rod, the foot pedal is slidably connected with the connecting rod, the connecting piece is fixedly connected with the foot pedal, one end of the linkage rod is rotatably connected with the connecting piece, and the other end of the linkage rod is rotatably connected with the lower end of the swing piece or the crank piece; the connecting point of the swing piece and the rack is lower than or flush with the highest point of the foot pedal in the movement process.

[0009] In an embodiment, the step assembly further comprises upper and lower rollers located below and at the front end of the foot plate, the upper and lower rollers are rotatably connected to the connecting member and arranged on the upper and lower sides of the connecting rod, so that the foot plate is connected to the connecting rod through the upper and lower rollers.

[0010] In an embodiment, the step assembly further comprises front and rear rollers located below the foot plate, the front and rear rollers are arranged on the upper side of the connecting rod in the front-rear direction and rotatably connected to the connecting member, so that the foot plate is connected to the connecting rod through the front and rear rollers.

[0011] In an embodiment, the matching structure comprises a mounting arm extending in the front-rear direction, the mounting arm and the connecting rod form a sliding space extending in the front-rear direction, the step assembly further comprises upper and lower rollers located below and at the front end of the foot plate, the upper and lower rollers are rotatably connected to the connecting member and arranged on the upper and lower sides of the mounting arm, and the lower roller is slidably mounted in the sliding space.

[0012] In an embodiment, the bottom wall of the foot plate is provided with a sliding mechanism, the connecting rod is provided with a matching structure above the connecting point of the connecting rod and the curved member, and the sliding mechanism is slidably connected to the matching structure in the front-rear direction.

[0013] In an embodiment, the sliding mechanism and the matching structure are a linear guide rail pair.

[0014] In an embodiment, the matching structure comprises a sliding groove formed in the connecting rod and extending in the front-rear direction, and the sliding mechanism comprises a mounting wall connected to the bottom wall of the foot plate and a rolling member rotatably connected to the mounting wall, the rolling member is adapted to be installed in the sliding groove and can roll in the front-rear direction in the sliding groove.

[0015] In an embodiment, the inner and outer side walls of the connecting rod are each provided with a sliding groove; or, the top wall of the connecting rod is provided with a receiving groove, and the inner and outer side walls of the receiving groove are each provided with a sliding groove.

[0016] In an embodiment, the connecting member is located on one side of the connecting rod, or the connecting member is connected through the bottom wall of the foot plate and the connecting rod.

[0017] In an embodiment, the connecting rod comprises a support section and a connecting section connected to the front end of the support section, the support section is arranged in the front-rear direction, the connecting section is inclined upward relative to the support section, the foot plate is slidably connected to the support section, and the connecting section is rotatably connected to the rocking member.

[0018] In an embodiment, the foot pedal trainer further comprises a switching assembly, the switching assembly comprises a fixed shaft, a mounting cylinder and a bearing arranged in the mounting cylinder, an outer peripheral wall of the mounting cylinder is fixedly connected to a bottom wall surface of the rear end of the connecting rod or adjacent to the rear end, one end of the fixed shaft is fixedly connected to the rocking assembly, the other end of the fixed shaft extends into the mounting cylinder and is fixedly connected to an inner ring of the bearing, and an outer ring of the bearing is fixedly connected to an inner peripheral wall of the mounting cylinder.

[0019] In an embodiment, the foot pedal trainer further comprises a handrail and a reduction mechanism, the reduction mechanism has a connecting point capable of moving up and down, the handrail is drivingly connected to the rocking assembly through the reduction mechanism, and the handrail is detachably or foldably arranged relative to the rocking assembly, the rocking assembly drives the connecting point of the reduction mechanism to move up and down, so that the swing amplitude of the handrail is smaller than the swing amplitude of the rocking assembly.

[0020] The foot pedal trainer of the utility model makes the foot pedal rotatably connected with the rocking assembly or the rocking assembly through the linkage rod, and the foot pedal can slide forward and backward relative to the connecting rod, compared with the mode that the foot pedal is fixedly connected with the connecting rod, the long rocking assembly is not needed to realize the large-step movement of the foot pedal, so that the overall structure of the foot pedal trainer is more compact, and the occupied space is smaller. Meanwhile, the connecting point of the rocking assembly and the rack is lower than or flush with the highest point of the foot pedal in the movement process, when the foot pedal trainer does not arrange the handrail, the height of the connecting point of the rocking assembly and the rack to the ground is lower than or flush with the height of the highest point of the foot pedal in the movement process to the ground, the height of the whole elliptical machine can be minimized, so that the packaging size of the whole foot pedal trainer is smaller, and the transportation cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0022] Figure 1 The structure schematic view of an embodiment of the foot pedal trainer of the utility model is shown;

[0023] Figure 2 For Figure 1 The front view of the foot pedal trainer;

[0024] Figure 3 The structure schematic view of another embodiment of the foot pedal trainer of the utility model is shown;

[0025] Figure 4 For Figure 3A cross-sectional view of the pedal assembly, connecting rod, and crank assembly of the mid-pedal trainer from one angle.

[0026] Figure 5 This is a schematic diagram of another embodiment of the foot pedal training device of this utility model;

[0027] Figure 6 This is an assembly diagram of the first embodiment of the step assembly and connecting rod of the foot pedal trainer of this utility model;

[0028] Figure 7 This is an assembly diagram of the step assembly and connecting rod of the foot pedal trainer of this utility model in a second embodiment.

[0029] Figure 8 for Figure 7 Rear view of the middle structure;

[0030] Figure 9 This is an assembly diagram of the third embodiment of the step assembly and connecting rod of the foot pedal trainer of this utility model;

[0031] Figure 10 for Figure 9 A schematic diagram of the structure from another angle;

[0032] Figure 11 This is an assembly diagram of the fourth embodiment of the step assembly and connecting rod of the foot pedal trainer of this utility model;

[0033] Figure 12 for Figure 11 A schematic diagram of the structure from another angle;

[0034] Figure 13 This is an assembly diagram of the fifth embodiment of the step assembly and connecting rod of the foot pedal trainer of this utility model;

[0035] Figure 14 This is a schematic diagram of the structure of a connecting rod in one embodiment of the foot pedal training device of this utility model.

[0036] Explanation of icon numbers:

[0037] Reference Name Reference Name Reference Name 100 Frame 200 Crank-rocker assembly 210 Rocking piece 220 Crank piece 230 Connecting rod 231 Accommodating groove 232 Support section 233 Connecting section 240 Matching structure 241 Slide groove 242 Mounting arm 243 Sliding space 300 Step assembly 310 Connecting piece 320 Linkage rod 330 Foot pedal 340 Upper roller 350 Lower roller 360 Front roller 370 Rear roller 380 Sliding mechanism 381 Mounting wall 382 Rolling piece 400 Adapter assembly 410 Fixing shaft 420 Mounting cylinder 430 Bearing 500 Handrail 600 Damping mechanism

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on that a person of ordinary skill in the art can realize, when the combination of the technical solutions appears contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the present application.

[0040] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, if the certain posture changes, the directional indications also change accordingly.

[0041] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature can be below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0042] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme.

[0044] The utility model provides a footboard trainer.

[0045] In the embodiments of the utility model, please refer to Figures 1-3 The footboard trainer comprises a rack 100, a crank rocker assembly 200 and a stepping assembly 300.

[0046] The crank rocker assembly 200 comprises a swing piece 210, a crank piece 220 and a connecting rod 230, the upper ends of the swing piece 210 and the crank piece 220 are rotatably connected with the rack 100, the front end of the connecting rod 230 is rotatably connected with the swing piece 210, and the rear part of the connecting rod 230 is rotatably connected with the crank piece 220.

[0047] The stepping assembly 300 comprises a connecting piece 310, a linkage rod 320 and a footboard 330 located above the connecting rod 230, the footboard 330 is slidably connected with the connecting rod 230, the connecting piece 310 is fixedly connected with the footboard 330, one end of the linkage rod 320 is rotatably connected with the connecting piece 310, and the other end of the linkage rod 320 is rotatably connected with the lower end of the swing piece 210 or the crank piece 220; the connecting point of the swing piece 210 and the rack 100 is lower than or flush with the highest point of the footboard 330 in the movement process.

[0048] In the embodiments, the rack 100 is used for providing installation and support for the crank rocker assembly 200, the stepping assembly 300 and the like, and the overall frame of the rack 100 can be many, which can be designed according to actual needs, for example, the rack 100 can be designed in the form similar to a bicycle frame or a scooter frame, and the shape and structure of the rack 100 are not limited here. It can be understood that the crank rocker assembly 200 and the stepping assembly 300 both have two groups to correspond to the left and right feet of the user for exercise.

[0049] It should be noted that the swing piece 210, the crank piece 220 and the connecting rod 230 form a crank-rocker mechanism as a whole with the frame 100. The crank piece 220 is defined as a mechanism capable of rotating a full circle in the crank-rocker mechanism. The swing piece 210 is defined as a mechanism capable of swinging only within a certain range and incapable of rotating a full circle. The swing piece 210 and the crank piece 220 can be in a rod structure or a disc structure. In order to reduce weight, simplify structure and reduce the occupied space of the elliptical machine, the swing piece 210, the crank piece 220 and the connecting rod 230 can be in a rod structure. For the convenience of understanding, the swing piece 210, the crank piece 220 and the connecting rod 230 are exemplarily described in a rod structure in the following.

[0050] The connecting rod 230 can be a straight rod, an arc-shaped rod with a concave middle part, or a bent rod with a front end bent upward, which is not limited here. The length and width of the connecting rod 230 can be selected and designed according to actual needs. The rear part of the connecting rod 230 is rotatably connected with the crank piece 220. One end of the crank piece 220 can be hinged to the rear end of the connecting rod 230 or the middle part of the connecting rod 230. Alternatively, one end of the crank piece 220 is hinged to the middle part of the connecting rod 230, so that the connecting rod 230 has a connecting segment 233 and an extension segment on the front and back sides of the hinged part of the crank piece 220 and the connecting rod 230. The foot pedal 330 can reciprocate between the connecting segment 233 and the extension segment. In this way, the foot pedal 330 reciprocates on the front and back sides of the hinged part of the crank piece 220 and the connecting rod 230, which is more compact than the structure in which the foot pedal 330 reciprocates on the connecting rod 230 between the swing piece 210 and the crank piece 220 while achieving the same swing range. Under the premise of the same occupied space in the front-rear direction, the extension segment increases the front-rear reciprocating path of the stepping assembly 300, thereby increasing the stride of the entire foot pedal trainer.

[0051] The foot pedal 330 is used to provide stable support for the user's feet. When the user steps on the foot pedal 330, the foot pedal 330 can realize power transmission through the connecting rod 320 and the connecting piece 310 to convert the action into the power of the crank-rocker assembly 200 movement. The foot pedal 330 can include only a pedal, or a pedal, a front baffle, a rear baffle, a side baffle, etc. The specific structure of the foot pedal 330 is not limited here.

[0052] The foot pedal 330 is reciprocally and slidably connected to the connecting rod 230. The foot pedal 330 and the connecting rod 230 can be slidably connected through a roller assembly or through a linear guide. In the present embodiment, the connection mode of the foot pedal 330 and the connecting rod 230 is not limited. The connecting member 310 is used to provide a connection between the foot pedal 330 and the connecting rod 230, so that the connection between the connecting rod 320 and the foot pedal 330 is more convenient and reliable. According to the different sliding modes of the foot pedal 330 and the connecting rod 230, the form of the connecting member 310 is also changed adaptively. For example, when the connecting member 310 does not need to provide installation and support for the roller, the connecting member 310 can be provided in the form of a rod. When the connecting member 310 needs to provide installation and support for the roller, the connecting member 310 can be provided in the form of a bracket. The shape and structure of the connecting member 310 are not limited herein. The connecting member 310 and the foot pedal 330 can be integrally formed or fixedly connected through welding or screws.

[0053] By rotatably connecting one end of the connecting rod 320 to the connecting member 310 and rotatably connecting the other end to the rocker 210 or the curved member 220, the foot pedal 330 can slide forward and backward on the connecting rod 230 while pushing and pulling the rocker 210 or the curved member 220. That is, the foot pedal 330, the connecting rod 320, and the connecting rod 230 constitute a crank slider mechanism. Therefore, compared with the mode in which the foot pedal 330 is fixedly connected to the connecting rod 230, the foot pedal 330 of the present embodiment has a larger range of forward and backward movement relative to the ground, thereby enabling large-step movement of the entire foot pedal trainer.

[0054] It should be noted that if the foot pedal trainer does not have the handrail 500, the height of the machine stand depends on the height of the connecting point of the rocker 210 and the machine stand. By lowering (downwardly moving) the connecting point of the rocker 210 and the machine stand to be lower than or flush with the highest point of the foot pedal 330 during movement, the height of the connecting point of the rocker 210 and the machine stand to the ground is lower than or flush with the height of the highest point of the foot pedal 330 during movement to the ground. The height of the entire elliptical machine can be minimized, thereby making the packaging size of the entire foot pedal trainer smaller, and thereby reducing transportation costs. When the foot pedal trainer has the handrail 500, the handrail 500 can be folded or detached at the connecting point of the rocker 210 and the machine stand, and small-size packaging can usually be achieved.

[0055] The utility model discloses footboard trainer through making footboard 330 rotatable connection with swing piece 210 or bending piece 220 through linkage rod 320, and footboard 330 can slide to the front and rear relative connecting rod 230, compared with the mode of footboard 330 and connecting rod 230 fixed connection, need not adopt longer bending piece 220 to realize the big step amplitude movement of footboard 330, thereby make footboard trainer overall structure more compact, and the space is smaller. Meanwhile through making swing piece 210 and the connecting point of frame 100 lower than or flush with the highest point of footboard 330 in the movement process, when not setting handrail 500 of footboard trainer, the height of swing piece 210 and the connecting point of base is reduced (downwardly moved), make the height of swing piece 210 and the connecting point of base to ground, lower than or flush with the height of the highest point of footboard 330 in the movement process to ground, can minimize the height size of whole elliptical machine, thereby make the packing size of whole footboard trainer smaller, and further can reduce transportation cost.

[0056] In one embodiment, as shown in Figures 3-5 , the stepping assembly 300 further includes an upper roller 340 and a lower roller 350 located below and at the front end of the footboard 330. The upper roller 340 and the lower roller 350 are both rotatably connected to the connecting member 310 and arranged on the upper and lower sides of the connecting rod 230, so that the footboard 330 is slidably connected to the connecting rod 230 through the upper roller 340 and the lower roller 350.

[0057] In the present embodiment, the upper roller 340 and the lower roller 350 extend along the width direction of the connecting rod 230 to clamp the upper and lower sides of the connecting rod 230, respectively. By arranging the upper roller 340 and the lower roller 350 at the front end of the footboard 330 and clamping the upper and lower sides of the connecting rod 230, the footboard 330 can be stably supported. Even if the rear end of the footboard 330 is suspended, the rear end of the footboard 330 will not touch the connecting rod 230 when the user steps on the footboard 330. Therefore, by arranging the upper and lower rollers 350 only at the front end of the footboard 330, the number of rollers is minimized while ensuring reliable sliding of the footboard 330 and the connecting rod 230, thereby reducing the overall manufacturing cost.

[0058] In another embodiment, please refer to Figure 1 and Figure 2 , the stepping assembly 300 further includes a front roller 360 and a rear roller 370 located below the footboard. The front roller 360 and the rear roller 370 are arranged on the upper side of the connecting rod 230 in the front-rear direction and are both rotatably connected to the connecting member 310, so that the footboard 330 is slidably connected to the connecting rod 230 through the front roller 360 and the rear roller 370.

[0059] In the embodiment, the front roller 360 and the rear roller 370 extend along the width direction of the connecting rod 230. The front roller 360 and the rear roller 370 are arranged above the connecting rod 230 along the front-rear direction of the footboard 330, so that the front roller 360 and the rear roller 370 can reliably support the front and rear ends of the footboard 330, and the number of rollers is simplified to reduce the manufacturing cost of the whole machine while realizing reliable sliding of the footboard 330 and the connecting rod 230. Further, a set of front and rear rollers 370 can also be arranged below the connecting rod 230 to improve the sliding smoothness and support stability.

[0060] In yet another embodiment, referring to Figure 14 , the matching structure 240 includes a mounting arm 242 extending along the front-rear direction, the mounting arm 242 and the connecting rod 230 enclose a sliding space 243 extending along the front-rear direction, and the footboard assembly 300 further includes an upper roller 340 and a lower roller 350 arranged below the footboard and at the front end, the upper roller 340 and the lower roller 350 are rotatably connected to the connecting member 310 and clamped on the upper and lower sides of the mounting arm 242, and the lower roller 350 is slidably mounted in the sliding space 243.

[0061] In the embodiment, the upper roller 340 and the lower roller 350 extend along the width direction of the mounting arm 242 to be clamped on the upper and lower sides of the mounting arm 242. The upper roller 340 and the lower roller 350 are arranged at the front end of the footboard 330 to be clamped on the upper and lower sides of the mounting arm 242, so that the footboard 330 can be stably supported, and the rear end of the footboard 330 will not be lowered to the mounting arm 242 when the user steps on the footboard 330. Therefore, only the upper and lower rollers 350 are arranged at the front end of the footboard 330 to simplify the number of rollers while realizing reliable sliding of the footboard 330 and the mounting arm 242, thereby reducing the manufacturing cost of the whole machine. Further, a set of upper and lower rollers 350 can also be arranged at the rear end below the footboard 330 to improve the sliding smoothness and support stability.

[0062] The mounting arm 242 and the connecting rod 230 can be integrally formed, or fixedly connected by bonding, welding or the like. By arranging the mounting arm 242, a sliding space 243 is formed between the mounting arm 242 and the top wall of the connecting rod 230, and the lower roller 350 is slidably arranged in the sliding space 243. The upper roller 340 and the lower roller 350 are arranged between the mounting arm 242, and the upper roller 340 and the lower roller 350 are arranged above the connecting rod 230. This arrangement can prevent the footrest 330 from sliding out of position, and can also prevent the connecting point of the connecting rod 230 and the bending member 220 from interfering with the movement of the lower roller 350. Thus, the part of the connecting rod 230 behind the bending member 220 can be fully utilized for the sliding of the footrest 330, and the overall structure is more compact.

[0063] In an embodiment, as shown in Figures 6 to 14 , the bottom wall of the footrest 330 is provided with a sliding mechanism 380, and the connecting rod 230 is provided with a matching structure 240 above the connecting point of the connecting rod 230 and the bending member 220. The sliding mechanism 380 is slidably connected to the matching structure 240.

[0064] In this embodiment, the matching structure 240 is arranged above the connecting point of the connecting rod 230 and the bending member 220. In this way, when the sliding mechanism 380 and the matching structure 240 slide relative to each other, they will not be limited by the connecting point of the connecting rod 230 and the bending member 220. Thus, the part of the connecting rod 230 behind the bending member 220 can be fully utilized for the sliding of the footrest 330, and the overall structure is more compact. The specific structure of the sliding mechanism 380 and the matching structure 240 can be various, such as a linear guide rail pair, a sliding groove 241 and a sliding rail with rollers, etc. In this embodiment, the sliding mechanism 380 and the matching structure 240 are not limited in detail. By arranging the footrest 330 and the connecting rod 230 to slide forward and backward through the sliding mechanism 380 and the matching structure 240, the sliding precision of the footrest 330 can be improved, and the footrest 330 can be prevented from shaking left and right or up and down when sliding forward and backward on the connecting rod 230.

[0065] In an embodiment, as shown in Figure 6 , the sliding mechanism 380 and the matching structure 240 are a linear guide rail pair. One of the sliding mechanism 380 and the matching structure 240 can be a sliding rail, and the other can be a sliding block. By arranging the sliding mechanism 380 and the matching structure 240 as a linear guide rail pair, the footrest 330 and the connecting rod 230 slide forward and backward through the linear guide rail pair. This arrangement can improve the sliding precision of the footrest 330, occupy less space, and enable the footrest 330 to move stably in a straight line even under high load. The type of linear guide rail pair can be various, such as a roller linear guide rail, a ball linear guide rail, a cylindrical linear guide rail, etc. The linear guide rail pair can be selected according to actual needs, and is not limited in detail.

[0066] In another embodiment, as shown in Figures 7 to 13 , the matching structure 240 comprises a sliding groove 241 opened on the connecting rod 230 and extending in the front-rear direction, and the sliding mechanism 380 comprises a mounting wall 381 connected to the bottom wall of the foot pedal 330 and a rolling member 382 rotatably connected to the mounting wall 381, the rolling member 382 is adapted to be mounted in the sliding groove 241 and can roll in the sliding groove 241 in the front-rear direction. The rolling member 382 can be a roller, a ball, etc. By opening the sliding groove 241 on the connecting rod 230 and setting the rolling member 382 on the foot pedal 330 which is adapted to the sliding groove 241, the front-rear sliding of the foot pedal 330 and the connecting rod 230 is realized. This structure is simple and reliable, and the manufacturing cost is low. The sliding groove 241 can be opened on the top wall, side wall, etc. of the connecting rod 230.

[0067] Further, please refer to Figures 11 to 13 , the inner and outer side walls of the connecting rod 230 are both provided with a sliding groove 241. Then the rolling member 382 is mounted on the inner side of the mounting wall 381. In this way, the mounting wall 381 can provide support for the rolling member 382 while shielding the rolling member 382 and part of the sliding groove 241 to reduce the entry of foreign matter into the rolling member 382, and also can ensure the overall consistency of the appearance.

[0068] Further, as shown in Figures 7 to 10 , the top wall of the connecting rod 230 is provided with a receiving groove 231, and the inner and outer side walls of the receiving groove 231 are both provided with a sliding groove 241. Then the rolling member 382 is mounted on the outer side of the mounting wall 381, and the mounting wall 381 extends into the receiving groove 231 so that the rolling member 382 is adapted to slide in the sliding groove 241. In this way, the rolling member 382 can be hidden to improve the service life of the matching structure 240 and the sliding mechanism 380.

[0069] In an embodiment, as shown in Figures 1 to 8 , 11, the connecting piece 310 is located on one side of the connecting rod 230, or, as shown in Figure 10 and Figure 11 , the connecting piece 310 penetrates the bottom wall of the connecting rod 230 and the foot pedal 330. Since the connecting rod 320 is connected to the connecting piece 310, when the connecting piece 310 is arranged on one side of the connecting rod 230, the connecting rod 320 is also located on one side of the connecting rod 230. In this way, no perforation needs to be opened on the connecting rod 230, and the overall manufacturing process can be simplified. When the connecting piece 310 penetrates the connecting rod 230, the connecting rod 230 can provide a certain guiding effect for the sliding of the foot pedal 330, so that the front-rear sliding of the foot pedal 330 is more reliable.

[0070] In an embodiment, as shown in Figures 1-7 , the connecting piece 310 is located on one side of the connecting rod 230, or, as shown in Figure 10 and Figure 11 , the connecting piece 310 penetrates the bottom wall of the connecting rod 230 and the foot pedal 330. Since the connecting rod 320 is connected to the connecting piece 310, when the connecting piece 310 is arranged on one side of the connecting rod 230, the connecting rod 320 is also located on one side of the connecting rod 230. In this way, no perforation needs to be opened on the connecting rod 230, and the overall manufacturing process can be simplified. When the connecting piece 310 penetrates the connecting rod 230, the connecting rod 230 can provide a certain guiding effect for the sliding of the foot pedal 330, so that the front-rear sliding of the foot pedal 330 is more reliable.As shown, the connecting rod 230 comprises a supporting section 232 and a connecting section 233 connected to the front end of the supporting section 232, the supporting section 232 extends along the front-rear direction, and the connecting section 233 is inclined upward relative to the supporting section 232, the footboard 330 is slidably connected to the supporting section 232 along the front-rear direction, and the connecting section 233 is rotatably connected to the rocker 210.

[0071] In the embodiment, by extending the supporting section 232 along the front-rear direction, the footboard 330 can be located at a relatively horizontal position when the rocker 210 is vertical. By inclining the connecting section 233 upward relative to the supporting section 232, the footboard 330 can be located at a lower position while the connecting rod 230 can be connected to a higher point of the rocker 210, and there is enough space below the rocker 210 to connect the front end of the linkage rod 320.

[0072] In an embodiment, as shown in Figures 1-4 , the footboard trainer further comprises an adapter assembly 400, the adapter assembly 400 comprises a fixing shaft 410, a mounting cylinder 420, and a bearing 430 arranged in the mounting cylinder 420, the outer peripheral wall of the mounting cylinder 420 is fixedly connected to the bottom wall surface of the rear end or the rear end adjacent of the connecting rod 230, one end of the fixing shaft 410 is fixedly connected to the crank assembly 220, and the other end of the fixing shaft 410 extends into the mounting cylinder 420 and is fixedly connected to the inner ring of the bearing 430, and the outer ring of the bearing 430 is fixedly connected to the inner peripheral wall of the mounting cylinder 420.

[0073] In the embodiment, the mounting cylinder 420 is connected to the bottom wall surface of the connecting rod 230, so as to avoid the top surface of the connecting rod 230 from protruding and causing the footboard 330 to be lifted. The crank assembly 220 is rotatably connected to the bottom surface of the connecting rod 230 through the adapter assembly 400 instead of the side wall, so as to improve the service life of the adapter assembly 400 and avoid the adapter assembly 400 from being broken due to long-term excessive stress. The bearing 430 can be a rolling bearing 430, which comprises an outer ring, an inner ring, and a roller arranged between the outer ring and the inner ring, and the roller can be a cylinder or a sphere, which is not limited herein. By comprising the fixing shaft 410, the mounting cylinder 420, and the bearing 430, the adapter assembly 400 can realize the rotation of the connecting rod 230 relative to the rocker 210 through the inner and outer rings of the bearing 430, so as to effectively reduce the abrasion of the fixing shaft 410 and the mounting cylinder 420 and improve the service life of the entire adapter assembly 400.

[0074] In an embodiment, as shown in Figure 5 , the footboard trainer further comprises a handrail 500 and a reduction mechanism 600, the reduction mechanism 600 has a connecting point movable up and down, the handrail 500 is drivingly connected to the rocker 210 through the reduction mechanism 600, and the handrail 500 is detachably or foldably arranged relative to the rocker 210, the rocker 210 drives the connecting point of the reduction mechanism 600 to move up and down, so as to make the swing amplitude of the handrail 500 smaller than the swing amplitude of the rocker 210.

[0075] In the embodiment, the elliptical machine comprises the handrails 500, the handrails 500 are linked with the rocking pieces 210, the user can move the arms synchronously through the handrails 500 while moving the legs, the full-body movement is realized, and the movement effect of the user can be improved. The handrails 500 are detachably connected with the rocking pieces 210 through insertion, screw fixation or the like. The handrails 500 can be rotationally connected with the rocking pieces 210 to realize folding and standing of the handrails 500. The folding point and the dismounting point of the handrails 500 are moved downward, the storage size and the packaging size of the elliptical machine with the handrails 500 are reduced, and the storage and transportation costs are reduced.

[0076] The embodiment of the amplitude reduction mechanism 600 can be various, for example, the amplitude reduction mechanism 600 can be various connecting rods 230 mechanisms, the connecting point that can move up and down is the hinge point between the connecting rods 230. The amplitude reduction mechanism 600 can also be a pin shaft and a waist-shaped hole structure arranged between the handrails 500 and the rocking pieces 210 and matched with each other, the connecting point is on the pin shaft or the waist-shaped hole that can move up and down. The amplitude reduction mechanism 600 can also be a gear structure or a belt pulley structure, the connecting point is a certain point on the gear or a certain point on the belt. The handrails 500 are not directly connected with the rocking pieces 210 through the amplitude reduction mechanism 600, the rocking pieces 210 first push the connecting point on the amplitude reduction mechanism 600 to move upward or downward, and then drive the handrails 500 to swing, so that the swing amplitude of the handrails 500 is smaller than the swing amplitude of the rocking pieces 210 through the amplitude reduction mechanism 600, the swing amplitude of the handrails 500 is effectively reduced while the large swing amplitude is realized, and the user's use comfort is improved.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not drive the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A foot exerciser, characterized by, The treadle trainer comprises a frame, a crank rocker assembly and a treadle assembly. The crank rocker assembly comprises a rocker, a crank and a connecting rod, upper ends of the rocker and the crank are rotatably connected with the frame, a front end of the connecting rod is rotatably connected with the rocker, and a rear part of the connecting rod is rotatably connected with the crank. The treadle assembly comprises a connecting piece, a linkage rod and a foot pedal located above the connecting rod, the foot pedal is slidably connected with the connecting rod, the connecting piece is fixedly connected with the foot pedal, one end of the linkage rod is rotatably connected with the connecting piece, and the other end of the linkage rod is rotatably connected with a lower end of the rocker or the crank.

2. The foot-pedal exerciser as claimed in claim 1, wherein, The connecting point of the rocker and the frame is lower than or flush with a highest point of the foot pedal during movement.

3. The foot-pedal exerciser as claimed in claim 1, wherein The treadle assembly further comprises upper and lower rollers located below and at a front end of the foot pedal, the upper and lower rollers are rotatably connected with the connecting piece and arranged on upper and lower sides of the connecting rod, so that the foot pedal is slidably connected with the connecting rod through the upper and lower rollers.

4. The foot-pedal exerciser as claimed in claim 1, wherein, The treadle assembly further comprises front and rear rollers located below the foot pedal, the front and rear rollers are arranged on an upper side of the connecting rod in a front-rear direction and are rotatably connected with the connecting piece, so that the foot pedal is slidably connected with the connecting rod through the front and rear rollers.

5. The foot-pedal exerciser as claimed in claim 1, wherein, The treadle trainer further comprises a mounting arm extending in a front-rear direction, the mounting arm and the connecting rod form a sliding space extending in the front-rear direction, and the treadle assembly further comprises the upper and lower rollers located below and at the front end of the foot pedal, the upper and lower rollers are rotatably connected with the connecting piece and arranged on upper and lower sides of the mounting arm, and the lower roller is slidably mounted in the sliding space.

6. The foot-pedal exerciser as claimed in claim 5, wherein, A bottom wall of the foot pedal is provided with a sliding mechanism, the connecting rod is provided with a matching structure above a connecting point of the connecting rod and the crank, and the sliding mechanism is slidably connected with the matching structure in a front-rear direction.

7. The foot-pedal exerciser as claimed in claim 5, wherein, The sliding mechanism and the matching structure are a linear guide rail pair.

8. The foot-pedal exerciser as claimed in claim 7, wherein, The matching structure comprises a sliding groove formed in the connecting rod and extending in the front-rear direction, and the sliding mechanism comprises a mounting wall connected with the bottom wall of the foot pedal and a rolling piece rotatably connected with the mounting wall, the rolling piece is adapted to be mounted in the sliding groove and can roll in the sliding groove in the front-rear direction.

9. The foot-pedal exerciser as claimed in claim 1, wherein, The connecting rod is provided with the sliding groove on inner and outer side walls thereof, or the connecting rod is provided with a receiving groove on a top wall thereof, and the sliding groove is formed in inner and outer side walls of the receiving groove.

10. The foot-pedal exerciser as claimed in claim 1, wherein, The connecting piece is located on one side of the connecting rod, or the connecting piece penetrates the connecting rod and is connected with a bottom wall of the foot pedal. The connecting rod comprises a support section and a connecting section connected with a front end of the support section, the support section extends in the front-rear direction, the connecting section is inclined upward relative to the support section, the foot pedal is slidably connected with the support section, and the connecting section is rotatably connected with the rocker.

11. The foot-pedal exerciser as claimed in claim 1, wherein, The foot-pedal trainer further comprises a switching assembly, which comprises a fixing shaft, a mounting cylinder and a bearing arranged in the mounting cylinder, an outer peripheral wall of the mounting cylinder is fixedly connected to a bottom wall surface of the connecting rod rear end or adjacent rear end, one end of the fixing shaft is fixedly connected to the rocking assembly, the other end of the fixing shaft extends into the mounting cylinder and is fixedly connected to an inner ring of the bearing, and an outer ring of the bearing is fixedly connected to an inner peripheral wall of the mounting cylinder.

12. The foot-pedal trainer of any one of claims 1 to 11, wherein, The foot-pedal trainer further comprises a handrail and a reduction mechanism, the reduction mechanism has a connecting point capable of moving up and down, the handrail is drivingly connected to the rocking assembly through the reduction mechanism, and the handrail is detachably or foldably arranged relative to the rocking assembly, the rocking assembly drives the connecting point of the reduction mechanism to move up and down, so that an amplitude of the handrail is smaller than an amplitude of the rocking assembly.

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