Path simulation mechanism of elliptical machine and elliptical machine

Abstract

The path simulation mechanism of the elliptical machine comprises a crank rocker assembly and a crank sliding block assembly, the crank rocker assembly comprises a first crank piece, a swing piece and a first connecting rod, one end of the swing piece is rotatably connected to a machine base, and the other end of the swing piece is rotatably connected to a second connecting rod. The other end of the first connecting rod is hinged to one end of the first crank piece, and the other end of the first crank piece is hinged to the machine base. The crank sliding block assembly comprises a pedal module, a second crank piece and a second connecting rod. The pedal module is connected to the first connecting rod in a reciprocating sliding mode. One end of the second connecting rod is hinged to the pedal module, the other end of the second connecting rod is hinged to one end of the second crank piece, and the other end of the second crank piece is hinged to the end, hinged to the first crank piece, of the first connecting rod and fixedly connected with the end, hinged to the first crank piece, of the first connecting rod. According to the path simulation mechanism of the elliptical machine, the elliptical machine 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, and in particular to a path simulation mechanism of an elliptical machine and an elliptical machine. Background Art

[0002] The elliptical machine, also known as the space walker, is a type of aerobic exercise machine used for cardiopulmonary and full-body training, and is popular with many users and professionals. It can simulate movements such as running, climbing, and walking, training and stimulating the sciatic nerve, enhancing the endurance and strength of the lower back muscles, and targeting the buttocks, thighs, flanks, and lower abdomen for a body-sculpting effect. Its ability to primarily target specific lower extremity muscles makes it a common exercise device found in professional gyms and home living rooms. The elliptical machine's greatest feature is that it eliminates the knee joint's fulcrum when used for exercise. Exercising on an elliptical machine not only prevents, reduces, and alleviates pain associated with cervical spondylosis, periarthritis of the shoulder, and upper back pain, but also avoids the impact of running, better protecting the joints. The gentle exercise method offers increased safety.

[0003] As people prioritize exercise, more and more people are choosing to purchase fitness equipment at home for daily exercise. However, traditional elliptical machines are bulky and require excessive space, making them a major obstacle to their adoption by ordinary households. To achieve miniaturization, conventional elliptical machines utilize a simple crank-and-rocker mechanism, with the pedals secured to the connecting rod. This results in distorted elliptical motion, a reduced overall range of motion, and even a loss of some of the desired exercise benefits.

[0004] The above content is only used to assist in understanding the technical solution of the utility model and does not constitute an admission that the above content is prior art. Utility Model Content

[0005] In view of the above problems, the present invention proposes a path simulation mechanism for an elliptical machine, aiming to solve the technical problem that the elliptical machine cannot meet the requirements of miniaturization while ensuring the exercise effect.

[0006] To achieve the above-mentioned purpose, the path simulation mechanism of the elliptical machine proposed in the present invention includes a crank rocker assembly and a crank slider assembly;

[0007] The crank rocker assembly includes a first crank member, a rocking member, and a first connecting rod, wherein one end of the rocking member is rotatably connected to the machine base, and the other end is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the first crank member, and the other end of the first crank member is hinged to the machine base;

[0008] The crank slider assembly includes a pedal module, a second crank member, and a second connecting rod. The pedal module can be reciprocatingly slidably connected to the first connecting rod; one end of the second connecting rod is hinged to the pedal module, and the other end is hinged to one end of the second crank member, and the hinge point between the second connecting rod and the second crank member is projected on the first crank member and is non-concentric with the rotation center of the first crank member; the other end of the second crank member is hinged to one end of the first connecting rod and the first crank member, and is fixedly connected to this end of the first crank member.

[0009] In one embodiment, a distance between two hinge points of the first crank member is smaller than a distance between a hinge point between the second crank member and the second connecting rod and a hinge point between the first crank member and the frame.

[0010] In one embodiment, the path simulation mechanism of the elliptical machine also includes a connecting rod, which is rotatably and transversely inserted into one end of the first connecting rod, one end of the connecting rod is fixedly connected to the first crank member, and the other end is fixedly connected to the second crank member, and the projection of the hinge point of the second crank member and the second connecting rod on the first crank member is located on the extension line of the line connecting the two hinge points of the first crank member.

[0011] In one embodiment, the position where the second connecting rod is hinged to the second crank member is arranged to be adjustable on the second crank member.

[0012] In one embodiment, a slide is provided on the second crank member, and the path simulation mechanism of the elliptical machine further comprises an articulated seat, one end of the articulated seat is hinged to the second connecting rod, and the other end is slidably fixed in the slide.

[0013] In one embodiment, a screw rod is provided in the slide, one end of the screw rod is passed through and exposed at the end of the second crank member facing away from the first connecting rod to form an adjustment end, and a threaded through hole is provided on the hinge seat, and the screw rod is adapted to pass through the threaded through hole to drive the hinge seat to slide in the slide when the screw rod rotates.

[0014] In one embodiment, the middle portion of the rocking member is concave forward away from the first crank member to form a clearance space at the front end of the pedal.

[0015] In one embodiment, the rocking member is provided with a buffering member for buffering the pedal module at least on a side facing the pedal.

[0016] In one embodiment, the first connecting rod is a downwardly curved rod.

[0017] In one embodiment, the middle portion of the second connecting rod is concave to form a clearance space for the rear end of the pedal.

[0018] In one embodiment, the pedal module includes a footrest, a front baffle, a rear baffle and side baffles; the front baffle and the rear baffle are respectively connected to the front and rear ends of the footrest to respectively stop the front and rear sides of the foot; the side baffles are connected to the inner side of the footrest to stop the inner side of the foot; the height of the front baffle is greater than the height of the rear baffle and the side baffles.

[0019] In one embodiment, the path simulation mechanism of the elliptical machine also includes a connecting rod, which is rotatably and transversely inserted into one end of the first connecting rod, one end of the connecting rod is fixedly connected to the first crank member, and the other end is fixedly connected to the second crank member, and the hinge point between the second crank member and the second connecting rod is located on the extension line of the line connecting the two hinge points of the first crank member.

[0020] The present invention further provides an elliptical machine, comprising a machine base and two sets of path simulation mechanisms of the elliptical machines as described in any one of the above embodiments. The two sets of path simulation mechanisms of the elliptical machines are both connected to the machine base and are arranged opposite to each other in the transverse direction.

[0021] In one embodiment, one end of the rocking member of the path simulation mechanism of the elliptical machine is hinged to the machine base, and one end of the first crank member of the path simulation mechanism of the elliptical machine is hinged to the machine base; the distance in the height direction between the hinge point of the rocking member and the machine base and the hinge point of the first crank member and the machine base is adjustable.

[0022] In one embodiment, the height of the hinge point between the rocking member and the base is adjustable.

[0023] In one embodiment, the machine base includes a first vertical pole and a crossbeam, one end of the crossbeam is adjustably connected to the first vertical pole in a height direction, and the other end of the crossbeam is hinged to one end of the rocking member.

[0024] In one embodiment, the first upright pole is provided with a plurality of locking positions arranged longitudinally;

[0025] The elliptical machine further includes a sleeve and a locking structure, one end of the crossbeam is connected to the sleeve, and the sleeve can be slidably mounted on the outer periphery of the first vertical rod;

[0026] The locking structure is connected to the sleeve and has a locking position and an unlocking position; in the locking position, the locking structure is locked in one of the locking positions to lock the sleeve and the first vertical pole; in the unlocking position, the locking structure is disengaged from the locking position so that the sleeve can slide up and down relative to the first vertical pole.

[0027] In one embodiment, the locking position is a locking hole formed on the first vertical rod, and an inwardly inclined stop plate is provided around the periphery of the locking hole;

[0028] A screw hole seat is fixedly connected to the sleeve, and the locking structure includes an adjusting nut, a pin shaft and an elastic member. The adjusting nut is threadedly connected to the threaded seat, one end of the pin shaft is connected to the adjusting nut seat through an elastic member, and the other end is passed through the locking hole and is limited to the stop plate.

[0029] In one embodiment, an adjustment hole extending in the up-down direction is provided on the first vertical rod, the crossbeam passes through the first vertical rod and the sleeve, and is slidably disposed in the adjustment hole, and both ends of the crossbeam are respectively hinged to the two groups of rocking members of the path simulation mechanism of the elliptical machine.

[0030] In one embodiment, the machine base also includes a second vertical rod, and the first crank members of the path simulation mechanisms of the two groups of the elliptical machines are respectively hinged to the opposite side surfaces of the second vertical rod, and the two are fixedly connected, wherein the projection of the line between the two hinge points of one of the first crank members on the other first crank member is located on the extension line of the line between the two hinge points of the other first crank member.

[0031] In one embodiment, the elliptical machine also includes a resistance wheel and a pulley connected to the resistance wheel, the center of the pulley is fixedly connected to the hinge end of one of the rocking members and the machine base, and the resistance wheel is located on the front side of the pulley.

[0032] The path simulation mechanism of the elliptical machine of the present invention includes a crank rocker assembly and a crank slider assembly, and the first connecting rod serves as both a connecting rod of the crank rocker mechanism and a slide rail of the crank slider mechanism. The clever combination of the crank rocker mechanism and the crank slider mechanism allows the pedal module in the crank slider assembly to perform both reciprocating motion and circular motion along with the crank, thereby achieving elliptical trajectory motion of the pedal module. Furthermore, the overall motion amplitude is large, while ensuring the exercise effect. The number of parts of the path simulation mechanism of the entire elliptical machine is small, and the structure is compact, which can effectively reduce the overall volume and weight of the elliptical machine. At the same time, the overall space occupied is small, which is conducive to the miniaturization and lightweighting of the elliptical machine, making it more convenient for users to place it at home. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A schematic structural diagram of an embodiment of a path simulation mechanism of an elliptical machine according to the present invention is shown;

[0035] Figure 2 for Figure 1 A schematic diagram of the structure of the path simulation mechanism of the elliptical machine from another angle;

[0036] Figure 3 for Figure 1 Schematic diagram of the decomposition structure of the path simulation mechanism of the elliptical machine;

[0037] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0038] Figure 5 This is a simplified structural diagram of an embodiment of the elliptical machine of the present invention in a first position;

[0039] Figure 6 This is a simplified structural diagram of an embodiment of the elliptical machine of the present invention in the second position;

[0040] Figure 7 This is a simplified structural diagram of an embodiment of the elliptical machine of the present invention in the third position;

[0041] Figure 8 This is a simplified structural diagram of an embodiment of the elliptical machine of the present invention in the fourth position;

[0042] Figure 9 This is a simplified structural diagram of an embodiment of the elliptical machine of the present invention in the fifth position;

[0043] Figure 10 This is a structural diagram of another embodiment of the elliptical machine of the present invention;

[0044] Figure 11 This is a structural diagram of another embodiment of the elliptical machine of the present invention;

[0045] Figure 12 for Figure 11 Front view of the elliptical machine;

[0046] Figure 13 for Figure 11 A schematic diagram of the structure of the elliptical machine from another angle;

[0047] Figure 14 for Figure 11 A cross-sectional view of the elliptical machine at one angle;

[0048] Figure 15 for Figure 14 A partial enlarged view of point B in the middle;

[0049] Figure 16This is a structural diagram of an embodiment of the first upright pole of the elliptical machine of the present invention.

[0050] Description of Figure Numbers:

[0051]

[0052] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0054] It should be noted that if the embodiments of the present invention 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 status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0055] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that meet both A and B.

[0056] The utility model provides a path simulation mechanism for an elliptical machine.

[0057] In the embodiment of this utility model, please refer to Figures 1 to 11 The path simulation mechanism 100 of the elliptical machine includes a crank rocker assembly 110 and a crank slider assembly 120.

[0058] The crank-rocker assembly 110 includes a first crank member 111, a rocking member 112 and a first connecting rod 114. One end of the rocking member 112 is rotatably connected to the machine base 200 (connection point A), and the other end is hinged to one end of the first connecting rod 114 (connection point B). The other end of the first connecting rod 114 is hinged to one end of the first crank member 111 (connection point C), and the other end of the first crank member 111 is hinged to the machine base 200 (connection point D).

[0059] The crank slider assembly 120 includes a pedal module 121, a second crank member 126, and a second connecting rod 128. The pedal module 121 can be reciprocatingly slidably connected to the first connecting rod 114; one end of the second connecting rod 128 is hinged to the pedal module 121 (connection point E), and the other end is hinged to one end of the second crank member 126 (connection point F), and the projection of the hinge point (connection point F) between the second connecting rod 128 and the second crank member 126 on the first crank member 111 is non-concentric with the rotation center (D) of the first crank member 111, and the other end of the second crank member 126 is hinged to one end of the first connecting rod 114 and the first crank member 111 (connection point C), and is fixedly connected to this end of the first crank member 111.

[0060] In this embodiment, the rocking member 112, the first crank member 111, and the second crank member 126 can be rod-shaped structures or disc-shaped structures, as long as they can be hinged to the base 200, the first connecting rod 114, and the first connecting rod 114 and the second connecting rod 128, respectively. In order to reduce weight, simplify the structure, and reduce the space occupied by the elliptical machine, the first crank member 111 and the second crank member 126 can optionally adopt a rod-shaped structure. For ease of understanding, the following description will be based on the first crank member 111 and the second crank member 126 as rod-shaped structures. One end of the rocking member 112 can be hinged to the base 200, or it can be connected to the bottom plate of the base 200 by rolling means such as a roller. The method by which the rocking member 112 is rotatably connected to the base 200 is not specifically limited.

[0061] The pedal module 121 is used to provide stable support for the user's foot. When the user steps on the pedal module 121, the pedal assembly can achieve power transmission, thereby converting the movement into power for the crank slider assembly 120 to move. The pedal module 121 can be reciprocatingly connected to the first connecting rod 114. The pedal module can specifically include a pedal and a roller assembly connected to the pedal, so that the pedal is slidably connected to the first connecting rod 114 through the roller assembly. The pedal can include only a pedal, or it can include a pedal, a front baffle 123, a rear baffle 124, a side baffle 125, etc. There are also many possible structures for the roller assembly. For example, the roller assembly can include multiple groups of rollers arranged on the left and right sides of the pedal, each group of rollers including an upper roller and a lower roller, so that the pedal is sandwiched between the upper and lower sides of the first connecting rod 114 through the upper and lower rollers on the side, thereby achieving a sliding connection between the pedal assembly and the first connecting rod 114. Of course, the roller assembly may also include an upper roller and a lower roller disposed in the middle of the pedal bottom wall, so that the upper roller and the lower roller clamp the entire upper and lower side surfaces of the first connecting rod 114 to achieve a sliding connection between the pedal assembly and the first connecting rod 114. The specific structure of the pedal module 121 is not limited herein.

[0062] For the sake of convenience, Figures 5 to 9 、 Figure 12 As shown, the rocker member 112 is defined as the AB rod, the first connecting rod 114 is defined as the BC rod, the first crank member 111 is defined as the CD rod, the second crank member 126 is defined as the CF rod, and the second connecting rod 128 is defined as the EF rod. It should be noted that the CF rod and the CD rod are fixedly connected, allowing the CF rod to move in a circular motion with the CD rod, with point D as the center of the circle. Furthermore, the projection of the hinge point F between the second connecting rod 128 and the second driving member on the first crank member 111 is non-concentric with the rotation center D of the first crank member 111. This allows point F to move in a circular motion with the CD rod, and the action of the EF rod can drive the pedal module 121 to reciprocate. Specifically, the projection of the CF rod on the CD rod can be located on the extension line of the CD rod. Of course, the CF rod and the CD rod can also be set at an angle, or the CF rod can be parallel to the CD rod. In this case, the CF rod and the CD rod need to have different lengths.

[0063] It will be appreciated that, when connected to the base 200, the first crank member 111, rocking member 112, and first connecting rod 114 form a crank-rocker mechanism. The length of the CD rod is shorter than the lengths of the AB and BC rods, and the length of the AB rod is shorter than the length of the BC rod. This allows the CD rod to perform circular motion around point D, while the AB rod can perform rocking motion around point A.

[0064] Since the pedal module 121 is slidably connected to the first connecting rod 114, the pedal module 121, the second crank member 126, the second connecting rod 128, and the first connecting rod 114 integrally form a crank slider mechanism. The length of the CF rod is smaller than the BC rod and the EF rod, and the length of the BC rod is greater than the length of the EF rod. Since the second crank member 126 is fixedly connected to the first crank member 111, the CF rod can move in a circular motion around point D along with the CD rod. Through the action of the second connecting rod 128, the pedal module 121 can slide back and forth on the BC rod. In this way, the pedal module 121 performs both reciprocating motion and circular motion simultaneously, simulating an elliptical trajectory.

[0065] The path simulation mechanism 100 of the elliptical machine of the present invention includes a crank rocker assembly 110 and a crank slider assembly 120, and the first connecting rod 114 serves as both a connecting rod of the crank rocker mechanism and a slide rail of the crank slider mechanism. The crank rocker mechanism and the crank slider mechanism are cleverly combined, so that the pedal module 121 in the crank slider assembly 120 can perform both reciprocating motion and circular motion along with the crank, thereby achieving elliptical trajectory motion of the pedal module 121. The overall motion amplitude is large, and while ensuring the exercise effect, the number of parts of the path simulation mechanism 100 of the entire elliptical machine is small and the structure is compact, which can effectively reduce the overall volume and weight of the elliptical machine. At the same time, the overall space occupied is small, which is conducive to the miniaturization and lightweighting of the elliptical machine, making it more convenient for users to place it at home and requiring less storage space when the elliptical machine is not in use.

[0066] In one embodiment, the distance (CD) between the two hinge points of the first crank member 111 is smaller than the distance between the hinge point (F) between the second crank member 126 and the second connecting rod 128 and the hinge point (D) between the first crank member 111 and the frame. In other words, the distance between points DF is greater than the distance between points CD.

[0067] If the distance between DF is smaller than the distance between CD, the horizontal reciprocating amplitude of the pedal is smaller than or equal to the rotational diameter of the first crank member 111, i.e., smaller than or equal to 2CD. To increase the swing amplitude, the length of CD needs to be increased, which will increase the size of the entire machine or reduce the overall swing amplitude of the elliptical machine. However, in this embodiment, by making the distance (CD) between the two hinge points of the first crank member 111 smaller than the distance from the hinge point (F) between the second crank member 126 and the second connecting rod 128 to the hinge point (D) between the first crank member 111 and the frame, the distance between DF is greater than the distance between CD. Combined with the second connecting rod 128EF, the horizontal swing amplitude of the pedal can exceed 2CD, i.e., the horizontal swing amplitude of the pedal is close to 2DF. This achieves the effect of increasing the horizontal swing amplitude of the pedal while maintaining the overall exercise effect of the elliptical machine.

[0068] Furthermore, if Figures 1 to 9 As shown, the path simulation mechanism 100 of the elliptical machine also includes a connecting rod 150, which is rotatably and transversely arranged on one end of the first connecting rod 114, one end of the connecting rod 150 is fixedly connected to the first crank member 111, and the other end is fixedly connected to the second crank member 126, and the projection of the hinge point (F) between the second crank member 126 and the second connecting rod 128 on the first crank member 111 is located on the extension line of the line between the two hinge points (CD) of the first crank member 111.

[0069] In this embodiment, the two ends of the connecting rod 150 are fixedly connected to the first crank member 111 and the second crank member 126, respectively, and the projection of the hinge point between the second crank member 126 and the second connecting rod 128 on the first crank member 111 is located on the extension line of the line connecting the two hinge points of the first crank member 111. In this way, the first crank member 111, the connecting rod 150, and the second crank member 126 are arranged in a stepped manner. The length between DF is equal to the sum of the lengths of CD and CF. Compared with other embodiments in which CD and CF are arranged at an angle, the length of DF can be maximized. In this way, the horizontal swing amplitude of the pedal is close to 2(DC + CF). When the first crank member 111 and the second crank member 126 use a structure of equal size, the movement amplitude of the pedal can be maximized, thereby improving the training effect of the product and further facilitating the miniaturization of the entire machine.

[0070] In one embodiment, if Figures 1 to 4 、 Figures 10 to 12As shown, the position at which the second connecting rod 128 is hinged to the second crank member 126 is adjustable on the second crank member 126. This allows the length between the CFs to be adjustable, allowing machine users to adjust their stride length based on their needs, improving the versatility of the product and meeting the needs of different users. Furthermore, compared to adjusting the stride length by adjusting the hinge position of the first crank member 111 and the frame, the user only needs to lift the second connecting rod 128, without having to lift the entire elliptical machine's path simulation mechanism 100. Furthermore, the second crank member 126 is located outside the first crank member 111, making it more convenient for users to operate and reducing the difficulty of adjusting the stride length of the elliptical machine.

[0071] In the present application, the position of the second connecting rod 128 hinged on the second crank member 126 can be adjusted by sliding adjustment or multi-position adjustment.

[0072] Further, please refer again to Figures 1 to 4 The second crank member 126 is provided with a slideway 127. The path simulation mechanism 100 of the elliptical machine further includes an articulated seat 140, one end of which is hinged to the second connecting rod 128 and the other end of which is slidably fixed in the slideway 127. By providing the slideway 127 on the second crank member 126, the second connecting rod 128 is slidably fixed in the slideway 127 via the articulated seat 140, making adjustment operation more convenient and simpler than a fixed method using a latch.

[0073] Furthermore, a screw rod 130 is provided in the slide 127, one end of the screw rod 130 is passed through and exposed at the end of the second crank member 126 away from the first connecting rod 114 to form an adjustment end 131, and a threaded through hole 141 is provided on the hinge seat 140, and the screw rod 130 is adapted to pass through the threaded through hole 141 to drive the hinge seat 140 to slide in the slide 127 when the screw rod 130 rotates.

[0074] In this embodiment, the adjustment end 131 of the screw rod 130 is located at the end of the second crank member 126 that faces away from the first connecting rod 114, making it more convenient for the user to operate the adjustment end 131 from the outside. During use, the user can use a tool or rotate the adjustment end 131 by hand to rotate the screw rod 130, and the hinge seat 140 can slide up and down with the rotation of the screw rod 130, thereby driving the hinge point between the second connecting rod 128 and the second crank member 126 to move up and down. By allowing the hinge seat 140 to slide up and down via the screw rod 130 within the slideway 127, adjustment accuracy is guaranteed. At the same time, the hinge seat 140 can be hovered at any position without the need for an additional fixing structure to fix the hinge seat 140, simplifying the adjustment structure and reducing the difficulty of operation.

[0075] In one embodiment, if Figures 1 to 3 、 Figures 11 to 13 As shown, the middle portion of the rocker member 112 is recessed forward away from the first crank member 111 to form a pedal front clearance space 113. Specifically, the rocker member 112 can be configured as a curved rod. By recessing the middle portion of the rocker member 112 away from the first crank member 111, the pedal front clearance space 113 formed effectively prevents the pedal from colliding with the rocker member 112 when moving to the front extreme position. Compared to increasing the length of the first connecting rod 114 to achieve collision avoidance, this method can make the overall structure more compact, thereby reducing the overall size of the device and facilitating miniaturization of the device.

[0076] In one embodiment, the rocking member 112 is provided with a buffer member on at least one side facing the pedal to cushion the pedal module 121. Specifically, the buffer member may be a sponge sleeve, a soft anti-collision pad, an elastic member 430, etc., which is mounted on the rocking member 112. The provision of the buffer member on the rocking member 112 cushions the impact of the pedal against the rocking member 112, preventing the pedal from accidentally striking the rocking member 112 and affecting the user experience.

[0077] In one embodiment, please refer again to Figures 1 to 3 、 Figure 11 and Figure 12 , the first connecting rod 114 is a downwardly curved arc rod. Like this, compared to the first connecting rod 114 being a straight rod, the length of the first connecting rod 114 can be increased to a certain extent, then the collision of the front and rear ends of the pedal module 121 can be further prevented.

[0078] In one embodiment, if Figures 1 to 4 、 Figures 10 to 13 As shown, the middle portion of the second connecting rod 128 is recessed to form a pedal rearward clearance space 129. The second connecting rod 128 can be configured as a bent or curved rod to form this pedal rearward clearance space 129. This formed pedal rearward clearance space 129 effectively prevents the pedal from colliding with the second connecting rod 128 when the pedal moves to the rearward limit position. Compared to increasing the length of the second connecting rod 128 to achieve collision avoidance, this method makes the overall structure more compact, thereby reducing the overall size of the device and facilitating miniaturization of the device.

[0079] In one embodiment, please refer to Figures 1 to 3 、 Figure 12 The footrest module 121 includes a footrest 122, a front baffle 123, a rear baffle 124 and a side baffle 125; the front baffle 123 and the rear baffle 124 are respectively connected to the front and rear ends of the footrest 122 to respectively stop the front and rear sides of the foot; the side baffle 125 is connected to the inner side of the footrest 122 to stop the inner side of the foot; the height of the front baffle 123 is greater than the height of the rear baffle 124 and the side baffle 125.

[0080] In this embodiment, the footrest 122 is designed to fit snugly around the user's foot to provide support. The front and rear baffles 124 prevent the user's foot from sliding off the footrest 122 in the forward and backward directions during exercise. The side baffles 125 block the inside of the user's foot to prevent the user from stepping on empty space. Together, the front, rear, and side baffles 125 effectively block the user's foot, enhancing exercise safety. It's understood that when a user moves forward downhill, their foot is likely to come into contact with the front baffle 123. By making the front baffle 123 taller than the rear baffle 124 and side baffles 125, this blocking effect is further enhanced, preventing the user's foot from sliding out the front and ensuring product safety.

[0081] The utility model also proposes an elliptical machine, please refer to Figures 10 to 16 The elliptical machine includes a base 200 and two sets of elliptical machine path simulation mechanisms 100. The two sets of elliptical machine path simulation mechanisms 100 are both connected to the base 200 and arranged in a transverse direction. The specific structure of the elliptical machine path simulation mechanism 100 is similar to the above-mentioned embodiment. Since this elliptical machine adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described in detail here. The foot pedal modules 121 of the two sets of elliptical machine path simulation mechanisms 100 are respectively used for the user's two feet to step on. In this way, the user can perform continuous and cyclic stepping movements on the elliptical machine to achieve a good exercise effect.

[0082] In one embodiment, if Figures 10 to 15 As shown, one end of the rocking member 112 of the path simulation mechanism 100 of the elliptical machine is hinged to the machine base 200, and one end of the first crank member 111 of the path simulation mechanism 100 of the elliptical machine is hinged to the machine base 200; the distance in the height direction between the hinge point of the rocking member 112 and the machine base 200 and the hinge point of the first crank member 111 and the machine base 200 is adjustable.

[0083] In this embodiment, the height difference between the hinge point A between the rocking member 112 and the base 200 and the hinge point D between the first crank member 111 and the base 200, i.e., the height difference between points AD, can be adjusted by adjusting the height of the hinge point A between the rocking member 112 and the base 200. Alternatively, the height difference between points AD can be adjusted by adjusting the height of the hinge point D between the first crank member 111 and the base 200. By making the height difference between the hinge point between the rocking member 112 and the base 200 and the hinge point between the first crank member 111 and the base 200 adjustable, the inclination angle of the first connecting rod 114 can be adjusted to be horizontal, tilted forward, or tilted backward. This allows the elliptical machine to have motion modes such as flat ground, downhill, or uphill. Users can adjust the motion mode of the elliptical machine according to their needs, thus diversifying the product's functionality.

[0084] Furthermore, the height of the hinge point between the rocking member 112 and the base 200 is adjustable. Since structures such as the pulley 600 and the resistance wheel 500 are generally located near the first crank member 111, the weight of one end of the rocking member 112 is lighter than that of the first crank member 111. Adjusting the height difference between points A and D by adjusting the height of the hinge point between the rocking member 112 and the base 200 is much easier than adjusting the height of the hinge point between the first crank member 111 and the base 200. Furthermore, the present application adjusts the slope of movement by adjusting the height of the hinge point between the rocking member 112 and the base 200, eliminating the need for additional structures to achieve slope adjustment and simplifying the overall structure.

[0085] Specifically, if Figures 10 to 15 As shown, the base 200 includes a first upright 210 and a crossbeam 220. One end of the crossbeam 220 is adjustably connected to the first upright 210 in the height direction, and the other end of the crossbeam 220 is hinged to one end of the rocking member 112. It is understood that because the rocking member 112 is located at the front end of the entire elliptical machine, it is subjected to greater overall force during exercise. The rocking member 112 is hinged to the crossbeam 220, and the crossbeam 220 is height-adjustably connected to the first upright 210. Compared to other arrangements, this ensures both the connection strength of the rocking member 112's hinge point and the reliability of the connection between the rocking member 112 and the first upright 210. In other embodiments, a handrail mechanism for the user to grasp with both hands may be provided on the first upright 210 to help stabilize the body during exercise.

[0086] Further, please refer to Figures 14 to 16 , the first vertical rod 210 is provided with a plurality of locking positions 211 arranged longitudinally;

[0087] The elliptical machine further includes a sleeve 300 and a locking structure 400. One end of the crossbeam 220 is connected to the sleeve 300. The sleeve 300 can be slidably mounted on the outer periphery of the first vertical rod 210.

[0088] The locking structure 400 is connected to the sleeve 300 and has a locking position 211 and an unlocking position; when the locking position 211 is set, the locking structure 400 is locked to one of the locking positions 211 to lock the sleeve 300 and the first vertical pole 210; when the locking structure 400 is in the unlocking position, the locking structure 400 is disengaged from the locking position 211 so that the sleeve 300 can slide up and down relative to the first vertical pole 210.

[0089] In this embodiment, the crossbeam 220 is connected to the periphery of the first vertical post 210 via the sleeve 300 in a manner that allows for vertical sliding movement. This increases the sliding contact area, improves ease of adjustment, and avoids stress concentration, thereby enhancing the reliability of the crossbeam 220 connection. The number of locking positions 211 and the spacing between adjacent locking positions 211 can be selected and designed based on practical needs and are not specifically limited herein. By providing a locking structure 400, the sleeve 300 can be locked to the locking positions 211 of the first vertical post 210. The user can adjust the height of the connection point between the rocker 112 and the base 200 by switching the locking position 211 of the sleeve 300 on the first vertical post 210, making overall operation convenient and reliable. The locking structure 400 can be a locking pin, with the locking position 211 corresponding to a locking hole or locking groove. Alternatively, the locking structure 400 can be a hook, with the locking position 211 corresponding to a locking hole or hook. The locking structure 400 and the locking position 211 may have many structural forms, as long as they can achieve locking and unlocking of the two, and no specific limitation is made here.

[0090] Furthermore, the locking position 211 is a locking hole formed on the first vertical rod 210, and an inwardly inclined stop plate 212 is provided around the periphery of the locking hole;

[0091] A screw hole seat 310 is fixedly connected to the sleeve 300, and the locking structure 400 includes an adjusting nut 410, a pin shaft 420 and an elastic member 430. The adjusting nut 410 is threadedly connected to the threaded seat, and one end of the pin shaft 420 is connected to the adjusting nut 410 through the elastic member 430, and the other end is passed through the locking hole and is limited to the stop plate 212.

[0092] In this embodiment, when adjustment is required, the adjustment nut 410 is gradually screwed out of the threaded seat. After the pin 420 is released from the locking hole, the sleeve 300 is in the unlocked position, and the sleeve 300 can slide up and down relative to the first upright 210. After adjustment to the desired position, the pin 420 is inserted into the locking hole via the elastic member 430. The adjustment nut 410 is then tightened, and the end of the pin 420 abuts against the stop plate 212. This locking structure 400 achieves locking and unlocking of the sleeve 300 and the first upright 210, reduces the number of parts, is easy to operate, and ensures the reliability of the locking of the sleeve 300 and the first upright 210.

[0093] In one embodiment, if Figures 10 to 15 As shown, the first upright 210 is provided with an adjustment hole 213 extending in the vertical direction. The crossbeam 220 passes through the first upright 210 and the sleeve 300 and is slidably disposed in the adjustment hole 213. The ends of the crossbeam 220 are respectively hinged to the rocking members 112 of the two sets of elliptical machine path simulation mechanisms 100. By hingedly connecting the two rocking members 112 of the two sets of elliptical machine path simulation mechanisms 100 to the ends of the crossbeam 220, the height of the hinge points of the two rocking members 112 and the frame can be simultaneously adjusted using only the sleeve 300, making the overall incline adjustment of the elliptical machine easier and more convenient, while also ensuring the height consistency of the two rocking members 112.

[0094] In one embodiment, please refer to Figures 10 to 14 The machine base 200 also includes a second vertical rod 230, and the first crank members 111 of the path simulation mechanisms 100 of the two groups of elliptical machines are respectively hinged to the opposite sides of the second vertical rod 230, and the two are fixedly connected, and the projection of the line between the two hinge points of one of the first crank members 111 on the other first crank member 111 is located on the extension line of the line between the two hinge points of the other first crank member 111.

[0095] In this embodiment, two first crank members 111 are disposed on opposite sides of the second vertical rod 230 and are fixedly connected. This allows the two first crank members 111 to be fixedly connected via a crossbar that passes through and rotatably connects to the second vertical rod 230, thereby achieving a fixed connection between the two first crank members 111 and a hinged connection with the machine base 200. By ensuring that the projection of the line connecting the two hinge points of one first crank member 111 onto the other first crank member 111 lies on an extension of the line connecting the two hinge points of the other first crank member 111, that is, the two first crank members 111 are fixed at 180 degrees, and the CD rods of the path simulation mechanisms 100 of the two elliptical machines are arranged in a straight line. This allows the path simulation mechanisms 100 of the two elliptical machines to move synchronously and staggered back and forth, better simulating a person's stepping motion.

[0096] Furthermore, the elliptical machine also includes a resistance wheel 500 and a pulley 600 that is transmission-connected to the resistance wheel 500 . The center of the pulley 600 is fixedly connected to the hinge end of one of the rocking members 112 and the machine base 200 , and the resistance wheel 500 is located on the front side of the pulley 600 .

[0097] In this embodiment, it is understood that the two rocking members 112 are fixedly connected and can both rotate relative to the base 200. By setting the pulley 600 and the resistance wheel 500 only on one side, the resistance movement of the two pedal modules 121 can be achieved. By setting the pulley 600 and the resistance wheel 500, the resistance of the elliptical machine can be adjusted. By adjusting the resistance and other parameters of the elliptical machine, the trainee can choose high-intensity muscle-building training or steady aerobic exercise. The training intensity can be adjusted according to their physical condition and exercise needs to meet the needs of trainees with different exercise goals and realize a personalized exercise plan. The center of the pulley 600 is fixed to the hinge end of the rocking member 112 and the base 200, and the resistance wheel 500 is set on the front side of the pulley 600, which can make the layout of the entire elliptical machine more compact and reasonable, and the overall space occupied is smaller.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, 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 path simulation mechanism for an elliptical machine, used to be connected to a machine base, characterized in that: The path simulation mechanism of the elliptical machine includes: a crank-rocker assembly comprising a first crank member, a rocking member, and a first connecting rod, wherein one end of the rocking member is rotatably connected to the machine base, and the other end is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the first crank member, and the other end of the first crank member is hinged to the machine base; and The crank slider assembly includes a pedal module, a second crank member, and a second connecting rod. The pedal module can be reciprocatingly slidably connected to the first connecting rod; one end of the second connecting rod is hinged to the pedal module, and the other end is hinged to one end of the second crank member, and the projection of the hinge point between the second connecting rod and the second crank member on the first crank member is non-concentric with the rotation center of the first crank member; the other end of the second crank member is hinged to one end of the first connecting rod and the first crank member, and is fixedly connected to this end of the first crank member.

2. The path simulation mechanism of the elliptical machine according to claim 1, characterized in that: The distance between the two hinge points of the first crank member is smaller than the distance between the hinge point between the second crank member and the second connecting rod and the hinge point between the first crank member and the frame.

3. The path simulation mechanism of the elliptical machine according to claim 2, wherein: The path simulation mechanism of the elliptical machine also includes a connecting rod, which is rotatably and transversely inserted into one end of the first connecting rod. One end of the connecting rod is fixedly connected to the first crank member, and the other end is fixedly connected to the second crank member. The projection of the hinge point of the second crank member and the second connecting rod on the first crank member is located on the extension line of the line connecting the two hinge points of the first crank member.

4. The path simulation mechanism of the elliptical machine according to any one of claims 1 to 3, characterized in that: The distance between the hinge point between the second connecting rod and the second crank member and the hinge point between the second crank member and the first connecting rod is adjustable.

5. The path simulation mechanism of the elliptical machine according to claim 4, characterized in that: The position where the second connecting rod is hinged to the second crank member is arranged to be adjustable on the second crank member.

6. The path simulation mechanism of the elliptical machine according to claim 5, characterized in that: The second crank member is provided with a slideway, and the path simulation mechanism of the elliptical machine further comprises an articulated seat, one end of the articulated seat is hinged to the second connecting rod, and the other end is slidably fixed in the slideway.

7. The path simulation mechanism of the elliptical machine according to claim 6, wherein: A screw rod is provided in the slide, one end of the screw rod is passed through and exposed at the end of the second crank member facing away from the first connecting rod to form an adjustment end, and a threaded through hole is provided on the hinge seat, and the screw rod is adapted to pass through the threaded through hole to drive the hinge seat to slide in the slide when the screw rod rotates.

8. The path simulation mechanism of the elliptical machine according to any one of claims 1 to 3, characterized in that: The middle portion of the rocking member is concave forward away from the first crank member to form a clearance space at the front end of the pedal; and / or the rocking member is provided with a buffering member for buffering the pedal module on at least one side facing the pedal.

9. The path simulation mechanism of the elliptical machine according to claim 8, wherein: The first connecting rod is a downwardly bent arc rod.

10. The path simulation mechanism of the elliptical machine according to claim 8, wherein: The middle portion of the second connecting rod is concave to form a clearance space for the rear end of the pedal.

11. The path simulation mechanism of the elliptical machine according to claim 8, wherein: The pedal module includes a footrest, a front baffle, a rear baffle and side baffles; the front baffle and the rear baffle are respectively connected to the front and rear ends of the footrest to respectively stop the front and rear sides of the foot; the side baffles are connected to the inner side of the footrest to stop the inner side of the foot; the height of the front baffle is greater than the height of the rear baffle and the side baffles.

12. An elliptical machine, characterized in that: It comprises a machine base and two groups of path simulation mechanisms of the elliptical machine as described in any one of claims 1 to 11, wherein the two groups of path simulation mechanisms of the elliptical machine are both connected to the machine base and are arranged opposite to each other in the transverse direction.

13. The elliptical machine according to claim 12, wherein: One end of the rocking member of the path simulation mechanism of the elliptical machine is hinged to the machine base, and one end of the first crank member of the path simulation mechanism of the elliptical machine is hinged to the machine base; the distance in the height direction between the hinge point of the rocking member and the machine base and the hinge point of the first crank member and the machine base is adjustable.

14. The elliptical machine according to claim 13, wherein: The height of the hinge point between the rocking member and the machine base is adjustable.

15. The elliptical machine according to claim 14, wherein: The machine base includes a first vertical pole and a crossbeam, one end of the crossbeam is adjustably connected to the first vertical pole in a height direction, and the other end of the crossbeam is hinged to one end of the rocking member.

16. The elliptical machine according to claim 15, wherein: The first vertical rod is provided with a plurality of locking positions arranged longitudinally; The elliptical machine further includes a sleeve and a locking structure, one end of the crossbeam is connected to the sleeve, and the sleeve can be slidably mounted on the outer periphery of the first vertical rod; The locking structure is connected to the sleeve and has a locking position and an unlocking position; in the locking position, the locking structure is locked in one of the locking positions to lock the sleeve and the first vertical pole; in the unlocking position, the locking structure is disengaged from the locking position so that the sleeve can slide up and down relative to the first vertical pole.

17. The elliptical machine according to claim 16, wherein: The locking position is a locking hole formed on the first vertical rod, and an inwardly inclined stop plate is provided on the periphery of the locking hole; A screw hole seat is fixedly connected to the sleeve, and the locking structure includes an adjusting nut, a pin shaft and an elastic member. The adjusting nut is threadedly connected to the screw hole seat, one end of the pin shaft is connected to the adjusting nut seat through an elastic member, and the other end is passed through the locking hole and is limited to the stop plate.

18. The elliptical machine according to claim 16 or 17, wherein: An adjustment hole extending in the up-down direction is provided on the first vertical rod. The crossbeam passes through the first vertical rod and the sleeve and is slidably arranged in the adjustment hole. Both ends of the crossbeam are respectively hinged to the rocking members of the two groups of path simulation mechanisms of the elliptical machines.

19. The elliptical machine according to any one of claims 12 to 17, wherein: The machine base also includes a second vertical rod, and the first crank members of the path simulation mechanisms of the two groups of the elliptical machines are respectively hinged to the opposite side surfaces of the second vertical rod, and the two are fixedly connected, and the projection of the line between the two hinge points of one of the first crank members on the other first crank member is located on the extension line of the line between the two hinge points of the other first crank member.

20. The elliptical machine according to claim 19, wherein: The elliptical machine also includes a resistance wheel and a pulley connected to the resistance wheel. The center of the pulley is fixedly connected to the hinge end of one of the rocking members and the machine base. The resistance wheel is located on the front side of the pulley.

Images