Closed path guide mechanism and pedal trainer

Abstract

The embodiment of the utility model discloses a closed path guide mechanism and a pedal trainer, and the closed path guide mechanism comprises a crank rocker assembly and a sliding block linkage assembly; the crank rocker assembly comprises a crank piece, a swing piece and a connecting rod. One end of the swing part is rotatably connected to the base, and the other end is hinged to the front end of the connecting rod; one end of the crank part is hinged to the engine base, and the other end of the crank part is hinged to the connecting rod, so that the connecting rod is provided with a connecting section and an extending section respectively positioned on the front and rear sides of the hinged part of the crank part and the connecting rod; the sliding block linkage assembly comprises a linkage mechanism and a pedal module, and the pedal module is connected to the connecting rod in a sliding mode and can slide between the connecting section and the extending section in a reciprocating mode. The linkage mechanism is in transmission connection with the pedal module and the swing piece. The closed path guide mechanism is small in size and small in occupied space while the exercise effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of training equipment, in particular to a closed path guiding mechanism and a pedal trainer. BACKGROUND

[0002] As a common fitness equipment, the pedal trainer is favored due to its joint-friendly exercise mode and comprehensive exercise effect. However, one of the significant shortcomings of the pedal trainer with a closed path, such as an elliptical path, is that it occupies a large space. This is mainly due to the bulky design, which is inconvenient to store, especially in urban living environments. It is not easy to find enough space for the pedal trainer. The space occupation problem of the pedal trainer is particularly prominent for people living in small-sized homes or frequently moving.

[0003] With the increasing emphasis on exercise, more and more users choose to purchase fitness equipment at home for daily exercise. In the process of pursuing miniaturization, the structure and configuration of the machine need to be adjusted. In order to realize miniaturization, the pedal trainer in the related art only adopts a crank rocker mechanism, and the pedal is fixed on the connecting rod of the crank rocker mechanism. These adjustments result in distortion of the elliptical trajectory, small overall movement range, and even loss of part of the expected exercise effect.

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

[0005] In view of the above problems, the utility model provides a closed path guiding mechanism, aiming to solve the technical problem that the pedal trainer cannot meet the miniaturization while ensuring the exercise effect.

[0006] To achieve the above purpose, the closed path guiding mechanism provided by the utility model is used to connect to the base, wherein the closed path guiding mechanism comprises:

[0007] a crank rocker assembly, the crank rocker assembly comprising a crank member, a rocker and a connecting rod; one end of the rocker is used for rotatable connection to the base, and the other end is hinged to the front end of the connecting rod; one end of the crank member is used for hinging to the base, and the other end is hinged to the connecting rod, so that the connecting rod has a connecting segment and an extension segment on the front and back sides of the hinging positions of the crank member and the connecting rod respectively; and

[0008] a slider linkage assembly, the slider linkage assembly comprising a linkage mechanism and a pedal module, the pedal module being slidably connected to the connecting rod and being capable of reciprocating sliding between the connecting segment and the extension segment; the linkage mechanism drivingly connecting the pedal module and the rocker.

[0009] In an embodiment, the length of the connecting section is greater than the length of the extending section, and when the footrest module moves backward to the limit position, the footrest module is at least partially located in the extending section.

[0010] In an embodiment, the footrest module comprises a footrest plate, a pedal bracket, a first roller and a second roller; the footrest plate is installed on the top surface of the pedal bracket, the first roller and the second roller are installed on the pedal bracket and located below the footrest plate, the first roller and the second roller are arranged along the front and back of the connecting rod and above the connecting rod, one end of the linkage mechanism is rotatably connected to the pedal bracket, so that the footrest plate slides along the connecting rod through the first roller and the second roller.

[0011] In an embodiment, the footrest module comprises a footrest plate, a pedal bracket, a first roller and a second roller; the footrest plate is installed on the top surface of the pedal bracket, the first roller and the second roller are installed on the front end of the pedal bracket and located below the footrest plate, the first roller and the second roller are arranged along the up and down of the connecting rod, one end of the linkage mechanism is rotatably connected to the pedal bracket, so that the footrest plate slides along the connecting rod through the first roller and the second roller.

[0012] In an embodiment, the closed path guide mechanism further comprises a pivot assembly, one end of the pivot assembly is connected to the curved member, and the other end is connected to the bottom surface of the connecting rod, so that the connecting rod can rotate forward and backward relative to the curved member through the pivot assembly, and the extending section is located at the rear side of the pivot assembly.

[0013] The pedal bracket comprises a front leg, and the front end of the footrest plate is connected to the top of the front leg; the pivot assembly is located at the rear side of the front leg to limit the front leg when the footrest module slides backward.

[0014] In an embodiment, the pivot assembly comprises a central shaft, a sleeve and a bearing member arranged in the sleeve, the outer peripheral wall of the sleeve is fixedly connected to the connecting rod, one end of the central shaft is fixedly connected to the curved member, and the other end extends into the sleeve and is fixedly connected to the inner ring of the bearing member, and the outer ring of the bearing member is fixedly connected to the inner peripheral wall of the sleeve.

[0015] In an embodiment, the linkage mechanism comprises a linkage rod arranged below the connecting rod, one end of the linkage rod is rotatably connected to the swing member, and the other end is rotatably connected to the front end of the footrest module.

[0016] In an embodiment, the linkage mechanism comprises a linkage rod, a pull rod and a push-pull rod; one end of the linkage rod is rotatably connected with the front end of the foot pedal module, and the other end is rotatably connected with one end of the pull rod; one end of the push-pull rod is rotatably connected with the swing piece, and the other end is rotatably connected with the pull rod; the pull rod is rotatably connected with the connecting segment, or the pull rod is rotatably connected with the base; the connection points of the push-pull rod and the pull rod and the connection points of the linkage rod and the pull rod are arranged at intervals on the pull rod, so as to push the linkage rod to link the pull rod and the push-pull rod to push the swing piece to swing relative to the base when the foot pedal module slides.

[0017] In an embodiment, the linkage mechanism is arranged below the connecting rod; the two ends of the pull rod are rotatably connected with the connecting rod and the linkage rod, respectively; one end of the push-pull rod is rotatably connected with the swing piece at a position below the connecting rod, and the other end is rotatably connected between the two hinge points of the two ends of the pull rod; the connection point of the push-pull rod and the pull rod is arranged adjacent to the connection point of the pull rod and the connecting rod.

[0018] In an embodiment, the linkage rod is arranged below the connecting rod, and the push-pull rod is arranged above the connecting rod; the pull rod is rotatably connected with the connecting rod; the upper end of the pull rod is rotatably connected with one end of the push-pull rod, and the lower end of the pull rod is rotatably connected with the linkage rod; the other end of the push-pull rod is rotatably connected with the swing piece at a position above the connecting rod, and the other end of the linkage rod is rotatably connected with the foot pedal module at a position below the connecting rod.

[0019] In an embodiment, the linkage rod is arranged below the connecting rod, and the push-pull rod is arranged above the connecting rod; the upper end of the pull rod is rotatably connected with the base, the lower end of the pull rod is rotatably connected with the linkage rod, and one end of the push-pull rod is rotatably connected between the two hinge points of the two ends of the pull rod.

[0020] The utility model discloses still propose a kind of foot pedal trainer, including base and like two groups as any one embodiment described above closed path guiding mechanism, two groups described closed path guiding mechanism are separately arranged on the opposite sides of the base transversely, one end of the swing piece of closed path guiding mechanism is rotatably connected in the front end of base, one end of the curved piece is hinged in the rear end of base.

[0021] In an embodiment, the foot pedal trainer further comprises a wheel rotatably connected to the rear end of the base, wherein one of the curved pieces is fixedly connected to the center of the wheel, and the extension segments of the two closed path guiding mechanisms are arranged rearward beyond the wheel.

[0022] In an embodiment, the base has a support surface for contacting the ground, and the height of the connection point of the rocker to the support surface is lower than or flush with the height of the highest point of the foot pedal module during movement of the foot pedal module to the support surface.

[0023] In an embodiment, the foot pedal trainer further comprises a handrail, which is detachably or foldably connected to the rocker and connected to the rocker at the connection point of the rocker to the base.

[0024] The closed path guiding mechanism comprises a crank rocker assembly and a slider linkage assembly, the foot pedal module is slidably connected to the connecting rod, and the foot pedal module is connected to the rocker through the linkage mechanism to swing the rocker, the crank rocker mechanism and the slider mechanism are combined ingeniously, so that the foot pedal module can move reciprocally and also move in a circular motion with the crank member, and thus the elliptical trajectory motion of the foot pedal module is realized. The overall motion amplitude is large, the number of parts of the entire closed path guiding mechanism is small, and the structure is compact, so that the overall volume and weight of the foot pedal trainer can be effectively reduced, and the miniaturization and light weight of the foot pedal trainer are facilitated, so that the foot pedal trainer is more convenient for users to place at home, and the foot pedal trainer requires a smaller storage space when not in use.

[0025] The crank member is hinged to the middle of the connecting rod, the connecting rod has a connecting segment and an extension segment on the front and back of the hinge of the crank member and the connecting rod, and the foot pedal module reciprocally slides between the connecting segment and the extension segment. Compared with the mode in which the foot pedal module reciprocally slides on the connecting rod between the rocker and the crank member, the structure of the entire foot pedal trainer is more compact when the crank member is moved forward while achieving the same amplitude. Under the premise of occupying the same space (front and back), the front and back reciprocating sliding path of the foot pedal module is increased by the extension segment, and thus the stride of the entire foot pedal trainer is increased. Therefore, the foot pedal trainer using the path simulation mechanism of the utility model can realize large stride movement while occupying smaller space, greatly improving the use performance of the product, and thus the product competitiveness can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. 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 creative labor.

[0027] Figure 1 The structure of the closed path guiding mechanism of the utility model is shown in the first embodiment.

[0028] Figure 2 For Figure 1 Structure diagram of the closed path guiding mechanism from another angle;

[0029] Figure 3 For Figure 1 Exploded view of the closed path guiding mechanism;

[0030] Figure 4 For Figure 3 Sectional view of the closed path guiding mechanism from one angle;

[0031] Figure 5 Structure diagram of the first embodiment of the pedal trainer of the utility model;

[0032] Figure 6 For Figure 5 Front view of the pedal trainer;

[0033] Figure 7 For Figure 5 Structure diagram of the pedal trainer from another angle;

[0034] Figure 8 Structure diagram of the second embodiment of the closed path guiding mechanism of the utility model;

[0035] Figure 9 Structure diagram of the second embodiment of the pedal trainer of the utility model;

[0036] Figure 10 For Figure 9 Front view of the pedal trainer;

[0037] Figure 11 Structure diagram of the third embodiment of the closed path guiding mechanism of the utility model;

[0038] Figure 12 Structure diagram of the third embodiment of the pedal trainer of the utility model;

[0039] Figure 13 For Figure 12 Front view of the pedal trainer;

[0040] Figure 14 Structure diagram of the fourth embodiment of the closed path guiding mechanism of the utility model;

[0041] Figure 15 Structure diagram of the fourth embodiment of the pedal trainer of the utility model;

[0042] Figure 16 For Figure 15 Front view of the pedal trainer;

[0043] Figure 17The utility model discloses a structure schematic drawing of the fifth embodiment of foot training device.

[0044] Explanation of reference numerals:

[0045] Reference Name Reference Name Reference Name 100 Closed path guide mechanism 110 Crank rocker assembly 111 Crank member 112 Rocking member 113 Linkage 114 Connecting segment 115 Extension segment 120 Slider linkage assembly 130 Linkage mechanism 131 Linkage rod 132 Traction rod 133 Push-pull rod 140 Foot pedal module 141 Foot pedal 142 Pedal support 143 Front leg 144 Rear leg 145 First roller 146 Second roller 150 Shaft assembly 151 Center shaft 152 Sleeve 153 Bearing member 200 Frame 210 Support surface 300 Wheel body 400 Handrail

[0046] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the drawings. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope of the utility model.

[0048] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, if the specific posture changes, the directionality indication also changes accordingly.

[0049] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature can be directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0050] 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, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, 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 explicitly or implicitly include 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.

[0052] The utility model provides a closed path guiding mechanism for connecting to the base.

[0053] In the embodiments of the present application, please refer to Figures 1-3 、 Figure 8 、 Figure 11 、 Figure 14 The closed path guiding mechanism 100 comprises a crank rocker assembly 110 and a slider linkage assembly 120.

[0054] The crank rocker assembly 110 comprises a crank member 111, a swing member 112 and a connecting rod 113; one end of the swing member 112 is used for rotatably connecting to the base 200, and the other end is hinged to the front end of the connecting rod 113; one end of the crank member 111 is used for hinging to the base 200, and the other end is hinged to the connecting rod 113, so that the connecting rod 113 has a connecting segment 114 and an extension segment 115 located on the front and back sides of the hinge of the crank member 111 and the connecting rod 113 respectively.

[0055] The slider linkage assembly 120 comprises a linkage mechanism 130 and a foot pedal module 140, the foot pedal module 140 is slidably connected to the connecting rod 113 and can reciprocate between the connecting segment 114 and the extension segment 115; the linkage mechanism 130 is drivingly connected to the foot pedal module 140 and the swing member 112.

[0056] In the embodiment, the rocker 112 and the crank 111 can be a rod structure or a disc structure, as long as they can be hingedly connected to the base 200 and the connecting rod 113, respectively. In order to reduce the weight and simplify the structure, and at the same time reduce the occupied space of the pedal exerciser, the crank 111 and the rocker 112 are rod structures. For the convenience of understanding, the crank 111 and the rocker 112 are rod structures in the following exemplary description. The upper end of the rocker 112 can be hingedly connected to the base 200, so that the entire rocker is hung on the base 200. The crank 111, the base, and the connecting rod 113, and the rocker 112 and the connecting rod 113 can be hingedly connected through a rotating shaft.

[0057] The connecting rod 113 can be a straight rod, an arc-shaped rod with a concave middle portion, or a bent rod with a front end bent upward, which is not limited herein. The length and width of the connecting rod 113 can be selected and designed according to actual needs. One end of the crank 111 is hingedly connected to a position between the front and rear ends of the connecting rod 113, rather than the rear end of the connecting rod 113. In this way, the connecting rod 113 has a connecting segment 114 located in front of the hinged position of the crank 111 and the connecting rod 113, and an extension segment 115 extending beyond the hinged position of the crank 111 and the connecting rod 113. The pedal module 140 can reciprocate between the connecting segment 114 and the extension segment 115, i.e., the pedal module 140 reciprocates on both sides of the hinged position of the crank 111 and the connecting rod 113. Compared with the pedal module 140 reciprocating on the connecting rod 113 between the rocker 112 and the crank 111, the pedal module 140 is moved forward, and the structure of the entire pedal exerciser is more compact while achieving the same step length. Under the premise of the same occupied space (front and rear directions), the extension segment 115 increases the reciprocating path of the pedal module 140, thereby increasing the step length of the entire pedal exerciser.

[0058] The pedal module 140 is used to provide stable support for the user's feet, and when the user steps on the pedal module 140, the pedal module 140 can achieve power transmission to convert the action into the power of the crank rocker assembly 110 movement. The pedal module 140 is reciprocally and slidably connected to the connecting rod 113, so that the pedal module 140 and the connecting rod 113 can be slidably connected through a roller assembly, a ball structure, or a linear guide rail, which is not limited herein.

[0059] It can be understood that the crank member 111, the swing member 112 and the connecting rod 113 form a structure similar to a crank rocker mechanism when connected to the base 200. The distance between the two hinge points of the crank member 111 is less than the distance between the two hinge points of the swing member 112 and the distance between the two hinge points of the connecting rod 113. In this way, the crank member 111 can make a circular motion around its hinge point with the base 200, and the swing member 112 can make a swing motion around its hinge point with the base 200. The linkage mechanism 130 is drivingly connected to the pedal module 140 and the swing member 112, and the structure and form of the linkage mechanism 130 can be various, for example, the linkage mechanism 130 can only include a linkage rod 131 connecting the pedal module 140 and the swing member 112, or can include a linkage rod 131, a traction rod 132, a push-pull rod 133, etc., as long as the pedal module 140 can be linked to the swing member 112 to swing through the linkage mechanism 130 when the pedal module 140 reciprocates, and the connecting rod 113 drives the crank member 111 to make a circular motion. The specific structure of the linkage mechanism 130 is not limited here.

[0060] In actual use, the user's foot steps on the pedal module 140, pushes the pedal module 140 to reciprocate on the connecting rod 113, and the pedal module 140 drives the swing member 112 to swing through the linkage mechanism 130, so that the swing member 112 can push and pull the connecting rod 113 to drive the crank member 111 to make a circular motion. In this way, after the crank member 111 moves one circle, the movement trajectory of the pedal module 140 is an ellipse, so that the movement trajectory of the pedal trainer is consistent with the ankle movement trajectory when a person naturally runs, and the movement stride is larger, so that the exercise effect of the user using the pedal trainer can be improved.

[0061] The closed path guiding mechanism 100 includes a crank rocker assembly 110 and a slider linkage assembly 120. The pedal module 140 is slidably connected to the connecting rod 113, and the pedal module 140 drives the swing member 112 to swing through the linkage mechanism 130. The crank rocker mechanism and the slider mechanism are combined to make the pedal module 140 not only reciprocate but also make a circular motion with the crank member 111, thereby realizing the elliptical trajectory motion of the pedal module 140. The overall movement amplitude is large, the number of parts of the entire closed path guiding mechanism 100 is small, the structure is compact, the overall volume and weight of the pedal trainer can be effectively reduced, the miniaturization and light weight of the pedal trainer are realized, the pedal trainer is more convenient for the user to place at home, and the pedal trainer requires a smaller storage space when not in use.

[0062] And by hinging the curved member 111 at the middle of the connecting rod 113, the connecting rod 113 has a connecting section 114 and an extension section 115 on both sides of the hinge of the curved member 111 and the connecting rod 113, and the footboard module 140 reciprocates between the connecting section 114 and the extension section 115, compared with the way that the footboard module 140 reciprocates on the connecting rod 113 between the rocker 112 and the curved member 111, when the curved member 111 is moved forward to achieve the same stride, the structure of the whole footboard trainer is more compact; and under the premise of the same space (front and back direction) occupied, the extension section 115 increases the front and back reciprocating sliding path of the footboard module 140, thereby increasing the stride of the whole footboard trainer. Therefore, the footboard trainer with the path simulation mechanism of the utility model can realize large-stride movement while occupying smaller space, greatly improving the use performance of the product, thereby effectively improving the product competitiveness.

[0063] In an embodiment, the length of the connecting section 114 is greater than the length of the extension section 115, and when the footboard module 140 moves backward to the limit position, the footboard module 140 is at least partially located in the extension section 115.

[0064] In the embodiment, by making the length of the connecting section 114 greater than the length of the extension section 115, that is, making the connecting rod 113 have sufficient length and space on the front side of the curved member 111, in this way, the user has sufficient space to accommodate the knee when exercising, which can effectively avoid the knee from accidentally touching the rocker 112, thereby improving the use safety of the product. When the footboard module 140 moves backward to the limit position, the footboard module 140 can be partially or entirely located in the extension section 115, in this way, the footboard module 140 can fully utilize the extension section 115 when sliding backward.

[0065] Further, as shown in Figures 1-3 、 Figure 7 、 Figure 11 、 Figure 12 、 Figure 14 、 Figure 15 , the footboard module 140 includes a footboard 141, a pedal bracket 142, a first roller 145 and a second roller 146; the footboard 141 is installed on the top surface of the pedal bracket 142, the first roller 145 and the second roller 146 are installed on the pedal bracket 142 and located below the footboard 141, the first roller 145 and the second roller 146 are arranged along the front and back of the connecting rod 113 and located above the connecting rod 113, one end of the linkage mechanism 130 is rotatably connected to the pedal bracket 142, so that the footboard 141 slides along the connecting rod 113 through the first roller 145 and the second roller 146.

[0066] In the embodiment, the footboard 141 and the pedal bracket 142 can be integrally formed, or can be separately formed and then welded. The structure and form of the pedal bracket 142 can be various, for example, the pedal bracket 142 can be sleeved on the connecting rod 113, and the linkage mechanism 130 can be connected to the pedal bracket 142 at the bottom end of the connecting rod 113. Of course, the pedal bracket 142 can be located above the connecting rod 113 as a whole, and the linkage mechanism 130 can be connected to the side wall of the pedal bracket 142, or the linkage mechanism 130 can pass through the connecting rod 113 and be connected to the bottom wall of the pedal bracket 142. The position of the linkage mechanism 130 connected to the pedal bracket 142 can be selected and set according to the shape and structure of the pedal bracket 142, which is not limited here.

[0067] The footboard 141 is used for the user to step on, and the first roller 145 and the second roller 146 are located below the footboard 141 to realize the sliding of the footboard module 140 on the connecting rod 113. The footboard 141 can include only a pedal, or can include a pedal, a front baffle, a rear baffle, a side baffle, etc., and the specific structure of the footboard 141 is not limited here. The forms of the first roller 145 and the second roller 146 can be various, and the specific structure can refer to the existing design, which is not limited here.

[0068] The first roller 145 and the second roller 146 are rotatably connected to the pedal bracket 142. When the first roller 145 and the second roller 146 are arranged in the front-rear direction, the first roller 145 and the second roller 146 can be located between the footboard 141 and the connecting rod 113, and the rolling surfaces of the first roller 145 and the second roller 146 abut against the top surface of the connecting rod 113 to realize the sliding of the footboard module 140 on the connecting rod 113. In this way, the sliding of the footboard module 140 can not be limited by the hinge joint of the bending member 111 and the connecting rod 113, and the footboard module 140 can be reliably supported while sliding along the connecting rod 113.

[0069] In another embodiment, as shown in Figures 1-3 , Figure 7 , Figure 11 , Figure 12 , Figure 14 , Figure 15 The footboard module 140 includes the footboard 141, the pedal bracket 142, the first roller 145, and the second roller 146. The footboard 141 is installed on the top surface of the pedal bracket 142, the first roller 145 and the second roller 146 are installed on the pedal bracket 142 and located below the footboard 141, the first roller 145 and the second roller 146 are arranged in the up-down direction of the connecting rod 113, and one end of the linkage mechanism 130 is rotatably connected to the pedal bracket 142 to make the footboard slide along the connecting rod 113 through the first roller 145 and the second roller 146.

[0070] When the first roller 145 and the second roller 146 are arranged in up and down, the two groups of rollers are connected to the front end of the pedal support, and the first roller 145 and the second roller 146 are arranged on the upper and lower sides of the connecting rod 113, respectively. Since the front end of the pedal support is also connected to the rocker 112 through the linkage mechanism 130, the pedal module 140 can be reliably supported while sliding along the connecting rod 113. The pedal module 140 can realize reliable sliding and support of the pedal module 140 on the connecting rod 113 through the first roller 145 and the second roller 146, which can effectively reduce the number of rollers and reduce the overall cost. Of course, the pedal module 140 can also be provided with more rollers on the pedal support.

[0071] Further, the closed path guide mechanism 100 further comprises a pivot assembly 150, one end of the pivot assembly 150 is connected to the curved member 111, and the other end is connected to the bottom surface of the connecting rod 113, so that the connecting rod 113 can rotate forward and backward relative to the curved member 111 through the pivot assembly 150, and the extension segment 115 is arranged at the rear side of the pivot assembly 150.

[0072] The pedal support 142 comprises a front leg 143, and the front end of the pedal plate 141 is connected to the top of the front leg 143; the pivot assembly 150 is located at the rear side of the front leg 143 to limit the front leg 143 when the pedal module 140 slides backward.

[0073] In the embodiment, the pivot assembly 150 is connected to the bottom surface of the connecting rod 113, avoiding the top surface of the connecting rod 113 from protruding and causing the pedal plate 141 to be lifted. The curved member 111 is connected to the top surface of the connecting rod 113 through the pivot assembly 150 instead of the side wall, which can improve the service life of the pivot assembly 150 and avoid breaking due to long-term excessive stress. The pedal support 142 has the front leg 143, and the pivot assembly 150 can limit the front leg 143 when the pedal module 140 moves backward. Thus, if the linkage mechanism 130 and the pedal module 140 are accidentally loosened during exercise, or the linkage mechanism 130 and the rocker 112 are accidentally loosened, the pedal module 140 can be effectively prevented from being accidentally thrown backward out of the connecting rod 113, thereby further ensuring the safety of the user. In practice, the pedal support 142 can also comprise a rear leg 144, and the pivot assembly 150 is located at the front side of the rear leg 144. Thus, the pivot assembly 150 is located between the front leg 143 and the rear leg 144, which can limit the pedal module 140 forward and backward.

[0074] Specifically, as shown in FIG. 1, the closed path guide mechanism 100 comprises a pedal module 140, a linkage mechanism 130, a rocker 112, a curved member 111, a connecting rod 113, and a pedal support 142. Figures 1 to 4As shown, the rotating shaft assembly 150 comprises a central shaft 151, a sleeve 152 and a bearing 153 arranged in the sleeve 152, the outer peripheral wall of the sleeve 152 is fixedly connected to the connecting rod 113, one end of the central shaft 151 is fixedly connected to the curved member 111, the other end extends into the sleeve 152 and is fixedly connected to the inner ring of the bearing 153, and the outer ring of the bearing 153 is fixedly connected to the inner peripheral wall of the sleeve 152.

[0075] The bearing 153 can be a rolling bearing, which comprises an outer ring, an inner ring and rolling elements arranged between the outer ring and the inner ring, and the rolling elements can be cylindrical bodies or spherical bodies, which are not limited herein. By comprising the central shaft 151, the sleeve 152 and the bearing 153, and by the rotation of the connecting rod 113 relative to the rocking member 112 through the inner and outer rings of the bearing 153, the wear of the central shaft 151 and the sleeve 152 can be effectively reduced, so as to prolong the service life of the rotating shaft assembly 150.

[0076] In an embodiment, please refer to Figures 1 to 7 The linkage mechanism 130 comprises a linkage rod 131 arranged below the connecting rod 113, one end of the linkage rod 131 is rotatably connected to the rocking member 112, and the other end is rotatably connected to the front end of the pedal module 140.

[0077] In the embodiment, the first linkage rod 131 is arranged below the connecting rod 113, so as to avoid occupying the space above the connecting rod 113 and affecting the movement of the pedal module 140, and the pedal module 140 can move closer to the rocking member 112, so that the overall structure is more compact. By pushing and pulling the rocking member 112 through the linkage rod 131 at the front end of the pedal module 140, the structure is simple and reliable, and the manufacturing cost is low.

[0078] In another embodiment, as shown in Figures 8 to 16 The linkage mechanism 130 comprises a linkage rod 131, a traction rod 132 and a push-pull rod 133; one end of the linkage rod 131 is rotatably connected to the front end of the pedal module 140, and the other end is rotatably connected to one end of the traction rod 132; one end of the push-pull rod 133 is rotatably connected to the rocking member 112, and the other end is rotatably connected to the traction rod 132; the traction rod 132 is rotatably connected to the connecting segment 114, or the traction rod 132 is rotatably connected to the base 200; the connection points of the push-pull rod 133 and the traction rod 132 are arranged at intervals on the traction rod 132, and the connection points of the linkage rod 131 and the traction rod 132 are arranged at intervals on the traction rod 132, so as to push the linkage rod 131 to link the traction rod 132 when the pedal module 140 slides, and the rocking member 112 is pushed and rocked relative to the base 200 by the push-pull rod 133.

[0079] In the embodiment, the cross-sectional shape of the linkage rod 131, the traction rod 132 and the push-pull rod 133 can be selected and designed according to actual needs, for example, can be selected as a circular shape, a square shape and the like, as long as it is roughly a long rod structure, and the cross-sectional shape of the linkage rod 131, the traction rod 132 and the push-pull rod 133 is not specifically limited. Making the linkage mechanism 130 all be a rod structure can reduce the volume and the occupied space of the entire stride lengthening mechanism, thereby being more conducive to reducing the weight of the entire pedal trainer. It should be noted that the traction rod 132 is rotationally connected to the connecting rod 113 or the support, and the purpose is to avoid the overall displacement of the traction rod 132 without restraint, which causes the pedal module 140 to be unable to accurately push and pull the swing piece 112 through the linkage mechanism 130.

[0080] It can be understood that if the pedal module 140 is only hinged to the swing piece 112 through the linkage rod 131, the stride length of the pedal module 140 is basically equal to the swing amplitude of the swing piece 112. By making the linkage mechanism 130 further include the traction rod 132 and the push-pull rod 133, the swing piece 112 is connected to the traction piece through the push-pull rod 133, and the pedal module 140 is connected to the traction rod 132 through the linkage rod 131, and the traction rod 132 is rotationally connected to the base 200 or the connecting rod 113, so that when the pedal module 140 pushes the traction rod 132 through the linkage rod 131, the traction rod 132 swings a certain amplitude relative to the connecting rod 113 or the base 200, and then pushes the swing piece 112 to swing through the push-pull rod 133. Therefore, the movement amplitude of the pedal module 140 is basically the swing amplitude of the traction rod 132 plus the swing amplitude of the swing piece 112. Therefore, the pedal module 140 is drivingly connected to the swing piece 112 through the stride lengthening mechanism, which can greatly increase the movement amplitude without additionally increasing the occupied space in the front-rear direction of the pedal trainer, thereby improving the exercise effect of the user using the pedal trainer.

[0081] In the first embodiment, please refer to Figures 8 to 10 The linkage mechanism 130 is arranged below the connecting rod 113; the two ends of the traction rod 132 are rotationally connected to the connecting rod 113 and the linkage rod 131, respectively; one end of the push-pull rod 133 is rotationally connected to the swing piece 112 at a position below the connecting rod 113, and the other end of the push-pull rod 133 is rotationally connected between the two end hinge points of the traction rod 132, and the connection point of the push-pull rod 133 and the traction rod 132 is arranged adjacent to the connection point of the traction rod 132 and the connecting rod 113.

[0082] In the embodiment, the movement path of the linkage rod 131 pushing and pulling the swing 112 can be extended by rotating the traction rod 132 relative to the connecting rod 113, so as to increase the stride of the entire foot pedal module 140. The traction rod 132 is connected to the connecting rod 113, which is more convenient than connecting the traction rod 132 to the frame. The entire stride lengthening mechanism is arranged below the connecting rod 113, so that the stride lengthening mechanism does not occupy the space above the connecting rod 113, and the foot pedal module 140 can move closer to the swing 112, so as to make the entire mechanism more compact in the transverse direction and occupy less space.

[0083] As shown in Figure 10 , the hinge of the traction rod 132 and the connecting rod 113 is defined at point A, the hinge of the traction rod 132 and the linkage rod 131 is defined at point C, and the hinge of the traction rod 132 and the linkage rod 131 is defined at point C. The connecting point of the traction rod 132 and the connecting rod 113 is adjacent to the connecting point of the traction rod 132 and the connecting rod 113, that is, the distance between AB is less than the distance between AC.

[0084] Since the point A is located between BC, the closer the point A is to the point B (the connecting point of the traction rod 132 and the connecting rod 113), the greater the distance between AC, the longer the force arm of the linkage rod 131 to the traction rod 132, and the greater the stride lengthening mechanism to the foot pedal module 140. Therefore, by making the distance between AB greater than the distance between AC, the connecting point of the traction rod 132 and the connecting rod 113 is closer to the connecting point of the traction rod 132 and the connecting rod 113, so that the stride lengthening mechanism can be extended to a greater stride, so as to achieve a large stride without increasing the length of the connecting rod 113, and to make the entire foot pedal trainer meet the large stride movement while being miniaturized, and to improve the core competitiveness of the product.

[0085] Alternatively, the distance between AB is less than half of the distance between AC. In this way, the distance between AB is less than one third of the length of BC, so that the transmission force arm of the traction rod 132 is close to the length of the traction rod 132, and the stride lengthening effect of the traction rod 132 can be maximized.

[0086] In the second embodiment, as shown in Figures 11 to 13 , the linkage rod 131 is arranged below the connecting rod 113, and the traction rod 133 is arranged above the connecting rod 113; the traction rod 132 is rotatably connected to the connecting rod 113, the upper end of the traction rod 132 is rotatably connected to one end of the traction rod 133, and the lower end of the traction rod 132 is rotatably connected to the linkage rod 131; the other end of the traction rod 133 is rotatably connected to the part of the swing 112 above the connecting rod 113, and the other end of the linkage rod 131 is rotatably connected to the part of the foot pedal module 140 below the connecting rod 113.

[0087] In the present embodiment, the linkage rod 131 is arranged below the link rod 113, so as to avoid occupying the space above the link rod 113 and affecting the movement of the foot pedal module 140, thereby making the overall structure more compact. A through hole can be formed on the link rod 113, so as to allow the traction rod 132 to pass through and rotate, and the traction rod 132 can be rotatably connected to the through hole of the link rod 113 through a rotating shaft. Of course, the traction rod 132 can also be rotatably connected to the side wall of the link rod 113. By rotating the traction rod 132 relative to the link rod 113, the movement path of the linkage rod 131 pushing and pulling the rocking piece 112 can be extended, thereby increasing the stride of the entire foot pedal module 140. Moreover, by rotatably connecting the traction rod 132 to the link rod 113, the extension length of the traction rod 132 can be effectively shortened compared with connecting the traction rod 132 to the frame, thereby reducing the occupied space of the traction rod 132 above the link rod 113, and making the overall structure more compact. By arranging the linkage rod 131 below the link rod 113 and the push-pull rod 133 above the link rod 113, the occupied space of the entire stride extension mechanism below the link rod 113 can be reduced, thereby making the entire foot pedal trainer more compact in the longitudinal direction and occupying less height space.

[0088] In addition, the middle part of the traction rod 132 is rotatably connected to the link rod 113, and the upper and lower ends of the traction rod 132 are rotatably connected to the push-pull rod 133 and the linkage rod 131, respectively. In this way, the transmission arm of the entire traction rod 132 is maximized (almost equal to the length of the traction rod 132), thereby maximizing the stride increasing effect of the traction rod 132 and maximizing the stride that can be extended by the entire stride extension mechanism without increasing the length of the traction rod 132.

[0089] Further, as shown in Figure 13 , the hinge of the push-pull rod 133 and the traction rod 132 is defined at point A, the hinge of the traction rod 132 and the link rod 113 is defined at point B, and the hinge of the traction rod 132 and the linkage rod 131 is defined at point C, wherein the distance between AB is less than the distance between BC. It can be understood that since the AB segment is located above the link rod 113, if the AB segment is too long, it will occupy too much space above the link rod 113, and even may collide with the user's knees. By making the distance between BC greater than the distance between AB, the most space below the link rod 113 and the small part of the space above the link rod 113 are fully utilized, without increasing the height of the ellipse and without occupying too much space above the link rod 113, thereby avoiding the knees of the user from colliding with the part of the traction rod 132 extending above the link rod 113 during movement, to improve the product use safety.

[0090] In the third embodiment, please refer to Figures 14 to 16The linkage rod 131 is arranged below the connecting rod 113, the push-pull rod 133 is arranged above the connecting rod 113, the upper end of the traction rod 132 is arranged in rotation connection with the base 200, the lower end of the traction rod 132 is arranged in rotation connection with the linkage rod 131, and one end of the push-pull rod 133 is arranged in rotation connection between the two end hinge points of the traction rod 132.

[0091] In the embodiment, the linkage rod 131 is arranged below the connecting rod 113, so that the linkage rod 131 does not occupy the space above the connecting rod 113 and affect the movement of the pedal module 140, thereby making the overall structure more compact. A through hole can be formed in the connecting rod 113, so that the traction rod 132 is arranged in the through hole and swings.

[0092] By rotating the traction rod 132 relative to the base 200, the movement path of the linkage rod 131 pushing and swinging the swing piece 112 can be extended, thereby increasing the stride of the entire pedal module 140. The linkage rod 131 is arranged below the connecting rod 113, and the push-pull rod 133 is arranged above the connecting rod 113. In this way, the occupied space of the entire stride extension mechanism below the connecting rod 113 can be reduced, thereby making the entire pedal trainer more compact in the longitudinal direction and occupying less space in the height direction.

[0093] In addition, since the upper end of the traction rod 132 is connected with the base 200, the length of the traction rod 132 is relatively long. In this way, the length of the traction rod 132 can be fully utilized, the distance between the hinge point of the linkage rod 131 and the traction rod 132 and the hinge point of the push-pull rod 133 and the traction rod 132 can be set to be larger, so that the transmission arm of the entire traction rod 132 can be set to be larger, thereby making the stride of the entire stride extension mechanism larger. The position of the push-pull rod 133 hinged to the traction rod 132 can be designed and adjusted according to the actual required stride, which is not limited here.

[0094] The utility model also proposes a kind of pedal trainer, such as Figures 5 to 7 , Figure 9 、 Figure 10 、 Figure 12 、 Figure 13 、 Figure 15 、 Figure 16As shown, the foot pedal trainer comprises a base 200 and two sets of closed path guiding mechanisms 100, the specific structure of which is referred to the above-mentioned embodiments, the two sets of closed path guiding mechanisms 100 are arranged on opposite sides of the base 200 in the transverse direction, one end of the swing piece 112 of the closed path guiding mechanism 100 is rotatably connected to the front end of the base 200, and one end of the curved piece 111 is hingedly connected to the rear end of the base 200; since the foot pedal trainer adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The foot pedal modules 140 of the two sets of closed path guiding mechanisms 100 are respectively used for the user to tread with two feet. Generally, the curved pieces 111 of the two sets of closed path guiding mechanisms 100 are fixedly connected. In this way, the user can perform continuous and cyclic stepping actions through the foot pedal trainer to achieve the exercise effect.

[0095] In a specific embodiment, the foot pedal trainer comprises a transmission-connected resistance wheel and a belt wheel. By arranging the resistance wheel, the resistance of the foot pedal trainer can be adjusted, and by adjusting the resistance and other parameters of the foot pedal trainer, the trainer can choose high-intensity muscle training or stable aerobic exercise, and then can adjust the training intensity according to the body condition and exercise demand, so as to meet the demand of the trainer with different exercise goals and realize the personalized exercise plan.

[0096] Further, the foot pedal trainer further comprises a wheel body 300 rotatably connected to the rear end of the base 200, one curved piece 111 is fixedly connected to the center of the wheel body 300, and the extension sections 115 of the two closed path guiding mechanisms 100 are arranged to extend rearward beyond the wheel body 300.

[0097] In the embodiment, the wheel body 300 can be a resistance wheel or a belt wheel. Actually, one curved piece 111 is fixedly connected to the center of the wheel body 300, and the curved pieces 111 of the two sets of closed path guiding mechanisms 100 are fixedly connected. In this way, the resistance movement of the left and right foot pedal assemblies can be realized by arranging the resistance wheel on one side. By arranging the extension sections 115 of the two closed path guiding mechanisms 100 to extend rearward beyond the wheel body 300, compared with the mode that the foot pedal module 140 can only reciprocate on the connecting rod 113 between the swing piece 112 and the curved piece 111, in the case of realizing the same step width, the wheel body 300 is moved forward, and the length of the foot pedal trainer in the front-rear direction is substantially the length of the connecting rod 113, so that the structure of the foot pedal trainer is more compact; and under the premise of occupying the same space in the front-rear direction, the front-rear reciprocating sliding path of the foot pedal module 140 is increased by the extension section 115, and thus the step width of the foot pedal trainer is increased. Therefore, the foot pedal trainer adopting the path simulation mechanism of the utility model can realize large-step movement while occupying smaller space, greatly improving the use performance of the product, and thus effectively improving the product competitiveness.

[0098] In an embodiment, as shown in Figure 5 , Figure 6 , Figure 9 , Figure 10 , Figure 12 , Figure 13 and Figure 15 , Figure 16 , the base 200 has a support surface 210 for contacting the ground, and the height of the connecting point of the swing 112 to the base 200 from the support surface 210 (as H2 in Figure 6 ) is lower than or equal to the height of the highest point of the foot pedal module 140 of the closed path guiding mechanism 100 from the support surface 210 (as H1 in Figure 6 ).

[0099] In the embodiment, if the handrail 400 is not provided, the height of the base 200 depends on the height of the connecting point of the swing 112 to the base 200. By lowering (moving downward) the height of the connecting point of the swing 112 to the base 200, the height of the connecting point of the swing 112 to the base 200 from the support surface 210 is lower than or equal to the height of the highest point of the foot pedal module 140 of the closed path guiding mechanism 100 from the support surface 210, so that the height of the whole foot pedal trainer is minimized, and the packaging size of the foot pedal trainer is smaller, and the transportation cost is reduced.

[0100] Further, as shown in Figure 17 , the foot pedal trainer further comprises a handrail 400, which is detachably or foldably connected to the swing 112 and is connected to the swing 112 at the connecting point of the swing 112 to the base 200.

[0101] In the embodiment, by providing the handrail 400 and connecting the handrail 400 to the swing 112, the user can perform synchronous movement of the arms through the handrail 400 while performing the leg movement, so that the whole body movement is achieved, and the movement effect of the user is improved. The handrail 400 is detachably connected to the swing 112 by means of insertion, screwing, etc. The handrail 400 can also be rotatably connected to the swing 112 to achieve folding and standing of the handrail 400. By foldably connecting the handrail 400 to the swing 112 at the connecting point of the swing 112 to the base 200, the folding point and the dismounting point of the handrail 400 are moved downward, so that the storage size and the packaging size of the foot pedal trainer with the handrail 400 are reduced, and the storage and transportation costs are reduced.

[0102] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art will understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not cause 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 closed path guide mechanism for attachment to a machine bed, characterized by, The closed path guiding mechanism comprises: A crank rocker assembly comprising a crank member, a rocker member and a connecting rod; one end of the rocker member is rotatably connected to a machine base, and the other end is hingedly connected to a front end of the connecting rod; one end of the crank member is hingedly connected to the machine base, and the other end is hingedly connected to the connecting rod, so that the connecting rod has a connecting section and an extension section on the front and back sides of the hingedly connected positions of the crank member and the connecting rod respectively; and A slider linkage assembly comprising a linkage mechanism and a foot pedal module, the foot pedal module being slidably connected to the connecting rod and being capable of reciprocating sliding between the connecting section and the extension section; the linkage mechanism drivingly connecting the foot pedal module and the rocker member.

2. The closed path guide mechanism of claim 1, wherein, The length of the connecting section is greater than the length of the extension section, and when the foot pedal module moves backward to a limit position, the foot pedal module is at least partially located in the extension section.

3. The closed path guide mechanism of claim 2, wherein, The foot pedal module comprises a foot pedal, a pedal support, a first roller and a second roller; the foot pedal is installed on a top surface of the pedal support, the first roller and the second roller are installed on the pedal support and are located below the foot pedal, the first roller and the second roller are arranged along the front and back of the connecting rod and are located above the connecting rod, and one end of the linkage mechanism is rotatably connected to the pedal support, so that the foot pedal module slides along the connecting rod through the first roller and the second roller.

4. The closed path guide mechanism of claim 1, wherein, The foot pedal module comprises a foot pedal, a pedal support, a first roller and a second roller; the foot pedal is installed on a top surface of the pedal support, the first roller and the second roller are installed on the front end of the pedal support and are located below the foot pedal, the first roller and the second roller are arranged along the up and down of the connecting rod, and one end of the linkage mechanism is rotatably connected to the pedal support, so that the foot pedal module slides along the connecting rod through the first roller and the second roller.

5. The closed path guide mechanism of claim 3, wherein, The closed path guiding mechanism further comprises a pivot shaft assembly, one end of the pivot shaft assembly is connected to the crank member, and the other end is connected to a bottom surface of the connecting rod, so that the connecting rod can be rotated forward and backward relative to the crank member through the pivot shaft assembly, and the extension section is located at the rear side of the pivot shaft assembly; The pedal support comprises a front leg, a front end of the foot pedal is connected to a top portion of the front leg, and the pivot shaft assembly is located at the rear side of the front leg to limit the front leg when the foot pedal module slides backward.

6. The closed path guide mechanism of claim 5, wherein, The pivot shaft assembly comprises a central shaft, a sleeve and a bearing member arranged in the sleeve, an outer peripheral wall of the sleeve is fixedly connected to the connecting rod, one end of the central shaft is fixedly connected to the crank member, and the other end extends into the sleeve and is fixedly connected to an inner ring of the bearing member, and an outer ring of the bearing member is fixedly connected to an inner peripheral wall of the sleeve.

7. The closed path guide mechanism according to any one of claims 1 to 6, wherein The linkage mechanism comprises a linkage rod arranged below the connecting rod, one end of the linkage rod is rotatably connected to the rocker member, and the other end is rotatably connected to a front end of the foot pedal module.

8. The closed path guide mechanism of any one of claims 1 to 6, wherein, The linkage mechanism comprises a linkage rod, a pull rod and a push-pull rod; one end of the linkage rod is rotatably connected with the front end of the foot pedal module, and the other end is rotatably connected with one end of the pull rod; one end of the push-pull rod is rotatably connected with the swing piece, and the other end is rotatably connected with the pull rod; the pull rod is rotatably connected with the connecting segment, or the pull rod is rotatably connected with the base; the connection points of the push-pull rod and the pull rod and the connection points of the linkage rod and the pull rod are arranged at intervals on the pull rod, so that the linkage rod is pushed to drive the pull rod and the push-pull rod to push the swing piece to swing relative to the base when the foot pedal module slides.

9. The closed path guide mechanism of claim 8, wherein, The linkage mechanism is arranged below the connecting rod; the two ends of the pull rod are rotatably connected with the connecting rod and the linkage rod, respectively; one end of the push-pull rod is rotatably connected with the swing piece at a position below the connecting rod, and the other end of the push-pull rod is rotatably connected between the two end hinge points of the pull rod; the connection point of the push-pull rod and the pull rod is arranged adjacent to the connection point of the pull rod and the connecting rod.

10. The closed path guide mechanism of claim 8, wherein, The linkage rod is arranged below the connecting rod, and the push-pull rod is arranged above the connecting rod; the pull rod is rotatably connected with the connecting rod; the upper end of the pull rod is rotatably connected with one end of the push-pull rod, and the lower end of the pull rod is rotatably connected with the linkage rod; the other end of the push-pull rod is rotatably connected with the swing piece at a position above the connecting rod, and the other end of the linkage rod is rotatably connected with the foot pedal module at a position below the connecting rod.

11. The closed path guide mechanism of claim 8, wherein, The linkage rod is arranged below the connecting rod, and the push-pull rod is arranged above the connecting rod; the upper end of the pull rod is rotatably connected with the base; the lower end of the pull rod is rotatably connected with the linkage rod; one end of the push-pull rod is rotatably connected between the two end hinge points of the pull rod.

12. A foot exerciser characterized by The machine base and the closed path guiding mechanism as claimed in any one of claims 1 to 11 are included; the two sets of closed path guiding mechanisms are arranged on opposite sides of the machine base in the transverse direction; one end of the swing piece of the closed path guiding mechanism is rotatably connected with the front end of the machine base; and one end of the curved piece of the closed path guiding mechanism is hingedly connected with the rear end of the machine base.

13. The foot-pedal exerciser of claim 12, wherein, The foot pedal trainer further comprises a wheel body rotatably connected with the rear end of the machine base, wherein one of the curved pieces is fixedly connected with the center of the wheel body, and the extension segments of the two closed path guiding mechanisms are arranged to extend beyond the wheel body rearward.

14. Pedal trainer according to claim 12 or 13, characterized in that The machine base has a support surface for contacting the ground; the height of the connection point of the swing piece and the machine base to the support surface is lower than or flush with the height of the highest point of the foot pedal module of the closed path guiding mechanism to the support surface during movement.

15. The foot-pedal exerciser of claim 14, wherein, The foot pedal trainer further comprises a handrail, which is detachably or foldably connected with the swing piece at the connection point of the swing piece and the machine base.

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