An elliptical machine with height adaptive module

Abstract

The present application discloses an elliptical machine with a height adaptive module, which belongs to the field of elliptical machines. It includes: a main frame and a resistance device; a push rod, one end of which is connected to the resistance device; a pedal module, which is connected to the push rod; the push rod is used to swing back and forth to make the pedal module perform elliptical motion; an adjustment module; the adjustment module includes: an adjustment rod, which is arranged at an interval with the push rod and has a gripping portion formed on the adjustment rod for easy gripping; a connecting member, which is used to form a transmission between the adjustment rod and the push rod so that the adjustment rod can rotate around the push rod; a self-locking structure, which is used to form a locking transmission between the connecting member and the push rod so that the adjustment rod can rotate to at least a first position and a second position relative to the push rod. The beneficial effect of the present application is to provide an elliptical machine with a height adaptive module that can move stably and can be adjusted according to the height of the user and using a straw.

Description

Technical Field

[0001] The present application relates to the field of elliptical machines, and in particular, to an elliptical machine with a height adaptive module. Background Art

[0002] Elliptical machines, also called cross-trainers (X-trainers), are used to simulate exercises such as climbing stairs, walking, or running.

[0003] The elliptical machine combines the advantages of a treadmill and a bicycle, allowing you to exercise your entire body while standing. Since both feet are fixed on the elliptical machine at the same time, the left and right feet are under force for half the time, which can reduce the impact on the knee joint and reduce the chance of injury.

[0004] Most of the existing elliptical machines use the movement of "pulleys" and "tracks" to form a closed elliptical motion trajectory. For example, U.S. Patent No. 7,316,633 discloses an elliptical machine, which includes a pair of slides. The front end of each slide is connected to a crank, and the rear end has a pulley that can slide back and forth on a slide track. In addition, a swing unit has a pair of swing arms and a pair of reciprocating elements. The front end of each reciprocating element is pivotally connected to the rear end of a corresponding swing arm, and the rear end of each reciprocating element is fixed with a pedal. Each reciprocating element is pivotally connected to the corresponding slide. During operation, the front end of the slide moves around the crank in a circular trajectory, and the rear end of the slide performs linear reciprocating motion, so that the motion trajectory of the pedal is an ellipse.

[0005] However, when in use, it cannot be adjusted according to the height or body shape of the user, so some short people may need to raise their hands above their heads to hold the elliptical machine and then use it, which will result in a bad user experience. Summary of the invention

[0006] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide an elliptical machine with a height adaptive module, including: a main frame and a resistance device; a push rod, one end of the push rod is connected to the resistance device; a pedal module, the pedal module is connected to the push rod; the push rod is used to swing back and forth to make the pedal module perform elliptical motion; the elliptical machine with the height adaptive module also includes: an adjustment module, the adjustment module is used to adjust the position of the push rod according to the height of the user; the adjustment module includes: an adjustment rod, the adjustment rod is spaced apart from the push rod and a grip portion for easy grip is formed on the adjustment rod; a connecting piece, the connecting piece is used to form a transmission between the adjustment rod and the push rod so that the adjustment rod can rotate around the push rod; a self-locking structure, the self-locking structure is used to form a locking transmission between the connecting piece and the push rod, so that the adjustment rod can rotate to at least a first position and a second position relative to the push rod.

[0008] Furthermore, the adjusting rod is constructed to have multiple curved structures; multiple gripping parts are formed on the adjusting rod, and the multiple gripping parts are separated by curved structures so that the distances between the multiple gripping parts and the pushing rod have at least a first distance and a second distance.

[0009] Furthermore, the first distance is greater than or less than the second distance.

[0010] Furthermore, the self-locking structure includes: a first locking portion, the first locking portion is fixed relative to the push rod; a second locking portion, the second locking portion and the connecting piece form a transmission so that the second locking portion can be away from or close to the first locking portion on the connecting piece; an elastic portion, the elastic portion is connected to the second locking portion and is used to make the second locking portion be subjected to a force approaching the first locking portion; the first locking portion cooperates with the second locking portion so that the adjusting rod is fixed in the first position or the second position when it rotates around the push rod through the connecting piece.

[0011] Furthermore, the first locking part includes: a locking plate, which is fixedly connected to the push rod and has a plurality of slots formed on the locking plate; the second locking part includes: a locking block, a protruding structure matching the slot is formed at the end of the locking block so that the locking block can be inserted into the slot; an abutting part is formed on the connecting piece, and the abutting part is used to abut with the elastic part; a guide part is formed on the abutting part, and the guide part slides with the locking block.

[0012] Furthermore, the self-locking structure also includes: a rotating part, which is rotatably connected to the push rod; a limiting part, which is formed on the rotating part; a protrusion is formed on the positioning disk; when the rotating part rotates to the point where the limiting part and the protrusion abut against each other, the limiting part can limit the protrusion.

[0013] Furthermore, the adjusting rod and the connecting member are rotatably matched so that the adjusting rod can rotate around a fixed axis.

[0014] Furthermore, two self-locking structures are provided, and the other self-locking structure is used to form a locking transmission between the connecting member and the adjusting rod so that the adjusting rod can at least rotate relative to the connecting member to the first use position and the second use position.

[0015] Furthermore, a support rod is provided between the adjusting rod and the connecting piece, and the support rod is used to form a triangular support structure between the adjusting rod and the connecting piece.

[0016] Furthermore, the pedal module includes: a lifting plate and a driving member, the driving member is used to drive the lifting plate to move up and down; a mounting shell, the mounting shell is mounted on the main frame and is used to accommodate the lifting plate and the driving member; the lifting plate is constructed into a shape that matches the shape of the foot.

[0017] The beneficial effect of the present application is that it provides an elliptical machine with a height adaptive module that can achieve stable movement and can be adjusted according to the height of the user and using a straw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0019] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0020] In the attached picture:

[0021] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0022] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the adjusting rod and some surrounding parts;

[0023] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the support rod and some surrounding parts;

[0024] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the self-locking structure and some surrounding parts;

[0025] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the self-locking structure;

[0026] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the explosion structure of the self-locking structure;

[0027] Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the exploded structure of the guide part and some surrounding parts;

[0028] Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the pedal module;

[0029] Fig. 9 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure inside the installation housing;

[0030] Fig.10 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the buffer assembly and some surrounding parts;

[0031] Fig.11 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the driving member and some surrounding parts;

[0032] Fig.12 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the bottom of the mounting housing;

[0033] Fig.13 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the massage motor;

[0034] Fig.14 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the adjusting rod.

[0035] Reference numerals:

[0036] 1. Main frame; 2. Resistance device; 3. Push rod; 4. Foot pedal module; 5. Adjustment module; 41. Lifting plate; 42. Driving member; 43. Mounting shell; 44. Transmission plate; 45. Buffer assembly; 46. Buffer spring; 47. Guide rod; 48. Massage assembly; 421. Driving motor; 422. Driving screw; 423. Support plate; 424. Guide column; 425. Driving nut; 426. Driving connecting rod; 427. Driving plate; 451. Air pump; 452. First air pipe; 453. Guide pipe; 4 54. piston rod; 455. second air pipe; 481. rotating column; 482. massage head; 483. massage motor; 51. adjusting rod; 52. connecting piece; 53. self-locking structure; 54. support rod; 55. support frame; 511. bending structure; 512. gripping part; 521. abutting part; 531. first locking part; 532. second locking part; 533. elastic part; 534. locking disk; 535. blocking block; 536. guiding part; 537. rotating part; 538. limiting part; 539. protruding part. DETAILED DESCRIPTION

[0037] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0038] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0039] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0040] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0041] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0042] Reference Figure 1-14 ,

[0043] An elliptical machine with a height adaptive module includes: a main frame 1 and a resistance device 2; a push rod 3, one end of which is connected to the resistance device 2; a pedal module 4, which is connected to the push rod 3; the push rod 3 is used to swing back and forth so that the pedal module 4 performs elliptical motion; the elliptical machine with the height adaptive module also includes: an adjustment module 5, which is used to adjust the position of the push rod 3 according to the height of the user; the adjustment module 5 includes: an adjustment rod 51, which is arranged at a distance from the push rod 3 and has a gripping portion 512 formed on the adjustment rod 51 for easy gripping; a connecting member 52, which is used to form a transmission between the adjustment rod 51 and the push rod 3 so that the adjustment rod 51 can rotate around the push rod 3; a self-locking structure 53, which is used to form a locking transmission between the connecting member 52 and the push rod 3 so that the adjustment rod 51 can rotate to at least a first position and a second position relative to the push rod 3. The connecting member 52 is a plate-shaped structure, and the connecting member 52 is rotatably connected to the push rod 3.

[0044] The adjusting rod 51 can rotate around the pushing rod 3, so the adjusting rod 51 can be rotated to the side close to the human body, and then when people use it, they hold the adjusting rod 51 with their hands, so the adjusting rod 51 will be closer to the user than the pushing rod 3, so people of different heights can have a relaxed and easy-to-hold position when using it, so that the elliptical machine of the present invention can be suitable for people of different heights and can provide users with an optimal usage mode; the adjusting rod 51 rotates to the first position and the second position relative to the pushing rod 3, the first position is the position where the adjusting rod 51 is closest to the user, and the second position is the position where the adjusting rod 51 is farthest from the user, so the adjusting rod 51 can provide users with a mode of using the adjusting rod 51 and not using the adjusting rod 51 at different positions, so as to better adapt to the height of different users; in addition, the self-locking structure 53 is used to lock the connecting member 52 and the pushing rod 3 in the first position or the second position, so when the user uses it, the adjusting rod 51 and the pushing rod 3 are relatively fixed, and there will be no situation where the adjusting rod 51 is subjected to excessive force and displaced relative to the pushing rod 3, so as to better ensure safety during use.

[0045] Furthermore, the adjusting rod 51 is constructed to have multiple curved structures 511; multiple gripping portions 512 are formed on the adjusting rod 51, and the multiple gripping portions 512 are separated by curved structures so that the distance between the multiple gripping portions 512 and the pushing rod 3 has at least a first distance and a second distance.

[0046] There are multiple curved structures on the adjustment rod 51, and the distance between the gripping portion 512 and the pushing rod 3 is made to have at least a first distance and a second distance through the multiple curved structures, that is, there will be multiple gripping portions 512, and the multiple gripping portions 512 are located at different positions, some gripping portions 512 are very close to the user, and some gripping portions 512 are slightly farther from the user, and the distance between the gripping portion 512 and the pushing rod 3 is not only the first distance and the second distance, but three distances, four distances or more distances can be designed according to actual usage requirements during design, so that the user can hold different gripping portions 512, and the user can have a variety of usage modes to choose from according to his or her own height, providing the user with more room for choice.

[0047] Furthermore, the first distance is greater than or less than the second distance.

[0048] Furthermore, the self-locking structure 53 includes: a first locking portion 531, the first locking portion 531 is fixed relative to the push rod 3; a second locking portion 532, the second locking portion 532 and the connecting member 52 form a transmission so that the second locking portion 532 can be away from or close to the first locking portion 531 on the connecting member 52; an elastic portion 533, the elastic portion 533 is connected to the second locking portion 532 to make the second locking portion 532 subject to a force acting to approach the first locking portion 531; the first locking portion 531 cooperates with the second locking portion 532 so that the adjusting rod 51 is fixed at the first position or the second position when it rotates around the push rod 3 through the connecting member 52. The first locking portion 531 includes: a locking disk 534, which is fixedly connected to the push rod 3 and has a plurality of slots formed thereon; the second locking portion 532 includes: a locking block 535, the end of which is formed with a protruding structure matching the slot so that the locking block 535 can be inserted into the slot; an abutting portion 521 is formed on the connecting member 52, and the abutting portion 521 is used to abut against the elastic portion 533; a guiding portion 536 is formed on the abutting portion 521, and the guiding portion 536 is slidably matched with the locking block 535. The self-locking structure 53 further comprises: a rotating part 537, which is rotatably connected to the push rod 3; a limiting part 538, which is formed on the rotating part 537; a protrusion 539 is formed on the positioning plate 534; the rotating part 537 rotates to the position where the limiting part 538 and the protrusion 539 abut, so that the limiting part 538 can limit the protrusion 539. The abutting part 521 is a plate-like structure, and the abutting part 521 is fixed on the connecting member 52. The elastic part 533 is a spring structure, and the elastic part 533 is fixed to the abutting part 521. The block 535 is fixed to the guide part 536, which is a rod-like structure, and the guide part 536 is slidably matched with the abutting part 521, and the elastic part 533 is sleeved on the periphery of the guide part 536.

[0049] By making the rotating part 537 rotate on itself, the limiting part 538 on the rotating part 537 will rotate to the protrusion 539 and press against the protrusion 539, so that the protrusion 539 cannot move away from the locking disk 534 relative to the locking disk 534, so that the locking block 535 is fixed in position, and the locking disk 534 cannot rotate, and further, the connecting member 52 cannot rotate relative to the pushing rod 3, thereby fixing the position of the adjusting rod 51. When the connecting member 52 needs to be rotated, the rotating part 537 needs to be rotated until the limiting part 538 on the rotating part 537 is away from the protrusion 539, so that the protrusion 539 will not be stuck in position, and the connecting member 52 rotates around the pushing rod 3, and then the parts on the connecting member 52 will rotate, but the locking disk 534 is fixed, and the clamping block 535 is a part on the connecting member 52. The clamping block 535 rotates around the locking disk 534, and then the clamping block 535 will be pressed on the locking disk 534 under the action of the guide part 536 and the elastic part 533. The clamping block 535 is relative to the locking disk 534, that is, the clamping block 535 cooperates with different clamping grooves, so that there will be a damping feeling during rotation, which improves the user experience. When it is not needed, it can be locked by simply rotating the rotating part 537, which is convenient and reliable to operate. At the same time, the connecting member 52 can also be rotated to any position relative to the push rod 3 and then fixed, so that the adjusting rod 51 has more positions. The adjusting rod 51 and the user can not only have the function of adjusting the distance, but also can adjust the lateral distance between the two adjusting rods 51, that is, it can be adjusted according to the user's shoulders, better adapt to the user's body shape, and provide the user with a better way of use.

[0050] Furthermore, the adjusting rod 51 and the connecting member 52 form a rotational fit so that the adjusting rod 51 can rotate around a fixed axis. Two self-locking structures 53 are provided, and the other self-locking structure 53 is used to form a locking transmission between the connecting member 52 and the adjusting rod 51 so that the adjusting rod 51 can at least rotate to the first use position and the second use position relative to the connecting member 52. There are two self-locking structures 53, and the two self-locking structures 53 have the same shape, except for the guide part 536. The guide part 536 that cooperates with the push rod 3 is a rod-shaped structure, and the guide part 536 that cooperates with the adjusting rod 51 is a tubular structure, so that the rod-shaped structure can be inserted into the tubular structure, saving the space used.

[0051] The adjusting rod 51 can rotate relative to the connecting member 52, that is, the adjusting rod 51 rotates, and then the multiple gripping parts 512 on the adjusting rod 51 will also change the distance from the user, thereby further increasing the usage methods.

[0052] Furthermore, a support rod 54 is provided between the adjustment rod 51 and the connecting member 52, and the support rod 54 is used to form a triangular support structure between the adjustment rod 51 and the connecting member 52. A support frame 55 is provided on the adjustment rod 51, and the support frame 55 is rotatably connected or fixedly connected to the support rod 54, and the support rod 54 is rotatably connected or fixedly connected to the connecting member 52. For the convenience of subsequent maintenance, this embodiment is preferably rotatably connected. When in use, a more reliable force mode can be provided for the adjustment rod 51, making it less prone to damage.

[0053] Furthermore, the footrest module 4 comprises: a lifting plate 41 and a driving member 42, wherein the driving member 42 is used to drive the lifting plate 41 to move upward and downward; a mounting shell 43, wherein the mounting shell 43 is mounted on the main frame 1 and is used to accommodate the lifting plate 41 and the driving member 42; the lifting plate 41 is constructed in a shape matching the shape of the foot. The height position of the foot can be fine-tuned to further increase the adaptability to users of different body shapes or heights.

[0054] Specifically, a transmission plate 44 is provided above the mounting housing 43, and the transmission plate 44 is spaced apart from the lifting plate 41, and a buffer spring 46 and a buffer assembly 45 are provided between the transmission plate 44 and the lifting plate 41, and a plurality of buffer springs 46 are provided, which are evenly distributed between the transmission plate 44 and the lifting plate 41, and a buffer assembly 45 is provided. The buffer assembly 45 comprises: a guide tube 453, which is fixed on the transmission plate 44; a piston rod 454 is provided in the guide tube 453, and the piston rod 454 is slidably connected to the guide tube 453; a cavity is formed between the piston rod 454 and the guide tube 453; four guide tubes 453 and piston rods 454 are provided, and are evenly distributed on the transmission plate 44; a second air pipe 455 is provided between the guide tubes 453, and the second air pipe 455 is used to connect the cavities in different guide tubes 453, so that the four guide tubes 453 are connected. 3 are interconnected, a first air pipe 452 is disposed on the second air pipe 455, the first air pipe 452 is connected with the second air pipe 455, and the first air pipe 452 is connected with all the cavities; an air pump 451 is disposed on the first air pipe 452, and the air pump 451 is used to control the air pressure in the cavity; the piston rod 454 is fixedly connected to the lifting plate 41, and the air pump 451 can control the air pressure in the cavity to make the piston rod 454 receive different forces, and thus adjust the force of the piston rod 454 to support the lifting plate 41.

[0055] Specifically, a massage motor 483 is installed in the installation shell 43. The massage motor 483 is a motor for driving parts to rotate. A rotating column 481 is installed at the output end of the massage motor 483. A plurality of massage heads 482 are formed on the rotating column 481, which will cause the massage heads 482 to rotate. The height position of the massage heads 482 is fixed because the massage motor 483 is fixed to the installation shell 43. Then the driving member 42 drives the lifting plate 41 to perform lifting movement through the transmission plate 44, the buffer spring 46 and the buffer assembly 45. Then, the distance between the lifting plate 41 and the massage heads 482 is different. By adjusting the height of the lifting plate 41, the massage heads 482 can be partially leaked out to massage the feet, or the massage heads 482 can be completely prevented from leaking out, thereby not performing massage.

[0056] In actual use, the lifting plate 41 will rise or fall according to the different pressures it receives. The reason for the different pressures is that the user's feet will perform elliptical motions with the lifting plate 41, so different pressures will be generated at different positions. Therefore, there will be a very comfortable feeling when using it, which is equivalent to stepping on a very soft base. It can be elastic, and the air pump 451 can adjust the elasticity, or it can be non-ventilated to make it inelastic. The specific setting can be based on usage requirements; multiple holes are provided on the lifting plate 41 and the transmission plate 44 to allow the massage head 482 to leak out.

[0057] Specifically, the driving member 42 includes: a driving motor 421, which is fixedly installed in the mounting housing 43; a driving screw 422 is fixedly installed at the output end of the driving motor 421, a support plate 423 is installed in the mounting housing 43, the driving screw 422 is rotatably connected to the support plate 423, a guide column 424 is provided on the support plate 423, the guide column 424 is fixedly connected to the support plate 423, a driving nut 425 is provided on the driving screw 422, the driving nut 425 is threadedly connected to the driving screw 422, a driving connecting rod 426 is hingedly installed on the driving nut 425, a driving plate 427 is hingedly installed on the driving connecting rod 426, and the driving plate 427 is fixedly installed with the transmission plate 44. A slider is provided on the guide rod 47, the slider is at the same horizontal position as the driving nut 425, a driving connecting rod 426 is also provided on the slider, and this driving connecting rod 426 is also hinged to the driving plate 427. The present invention can also adopt a double screw structure. The present invention can greatly save space through such a design method.

[0058] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. An elliptical machine with a height adaptive module, comprising: A main frame (1) and a resistance device (2); A push rod (3), one end of which is connected to the resistance device (2); A pedal module (4), the pedal module (4) is connected to the push rod (3); The push rod (3) is used to swing back and forth to make the pedal module (4) perform elliptical motion; Features: The elliptical machine with the height adaptive module also includes: An adjustment module (5), the adjustment module (5) being used to adjust the position of the push rod (3) according to the height of the user; The adjustment module (5) comprises: An adjusting rod (51), the adjusting rod (51) and the pushing rod (3) are arranged at a distance and a gripping portion (512) is formed on the adjusting rod (51) for easy gripping; A connecting member (52), the connecting member (52) is used to form a transmission between the adjusting rod (51) and the pushing rod (3), so that the adjusting rod (51) can rotate around the pushing rod (3); A self-locking structure (53), the self-locking structure (53) is used to form a locking transmission between the connecting member (52) and the push rod (3), so that the adjustment rod (51) can rotate relative to the push rod (3) to at least a first position and a second position; The self-locking structure (53) comprises: A first locking portion (531), the first locking portion (531) being fixed relative to the push rod (3); A second clamping portion (532), the second clamping portion (532) and the connecting member (52) forming a transmission so that the second clamping portion (532) can be moved away from or close to the first clamping portion (531) on the connecting member (52); An elastic portion (533), the elastic portion (533) being connected to the second clamping portion (532) and used to cause the second clamping portion (532) to be subjected to a force that approaches the first clamping portion (531); The first locking portion (531) cooperates with the second locking portion (532) so that the adjusting rod (51) is fixed at the first position or the second position when rotating around the pushing rod (3) through the connecting member (52); The first locking portion (531) comprises: a locking plate (534), the locking plate (534) is fixedly connected to the push rod (3) and a plurality of locking grooves are formed on the locking plate (534); The second locking portion (532) comprises: a locking block (535), the end of the locking block (535) is formed with a protruding structure matching the locking slot so that the locking block (535) can be inserted into the locking slot; An abutment portion (521) is formed on the connecting member (52), and the abutment portion (521) is used to abut against the elastic portion (533); A guide portion (536) is formed on the abutting portion (521), and the guide portion (536) is slidably matched with the clamping block (535); The self-locking structure (53) further comprises: A rotating portion (537), the rotating portion (537) is rotatably connected to the push rod (3); A limiting portion (538), wherein the limiting portion (538) is formed on the rotating portion (537); A protrusion (539) is formed on the locking plate (534); The rotating part (537) rotates to the position where the limiting part (538) and the raised part (539) abut against each other, so that the limiting part (538) can limit the raised part (539); The adjusting rod (51) and the connecting member (52) form a rotational fit so that the adjusting rod (51) can rotate around a fixed axis; Two self-locking structures (53) are provided, and the other self-locking structure (53) is used to form a locking transmission between the connecting member (52) and the adjusting rod (51) so that the adjusting rod (51) can at least rotate relative to the connecting member (52) to a first use position and a second use position.

2. The elliptical machine with a height adaptive module according to claim 1, characterized in that: The adjusting rod (51) is configured to have a plurality of bending structures (511); A plurality of gripping portions (512) are formed on the adjusting rod (51), and the plurality of gripping portions (512) are separated by a curved structure so that the distance between the plurality of gripping portions (512) and the pushing rod (3) has at least a first distance and a second distance.

3. The elliptical machine with a height adaptive module according to claim 2, characterized in that: The first distance is greater than or less than the second distance.

4. The elliptical machine with a height adaptive module according to claim 1, characterized in that: A support rod (54) is provided between the adjusting rod (51) and the connecting piece (52), and the support rod (54) is used to form a triangular support structure between the adjusting rod (51) and the connecting piece (52).

5. The elliptical machine with a height adaptive module according to claim 1, characterized in that: The pedal module (4) comprises: A lifting plate (41) and a driving member (42), wherein the driving member (42) is used to drive the lifting plate (41) to move upward and downward; A mounting housing (43) is mounted outside and is used to accommodate the lifting plate (41) and the driving member (42); The lifting plate (41) is constructed in a shape matching the shape of the foot.

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