Foldable human body imitating jogging health preserving elliptical track exercise bicycle

Abstract

This invention discloses a foldable exercise bike that mimics the elliptical trajectory of human jogging, belonging to the field of fitness equipment technology. It includes a foldable frame, a drive mechanism, a guide mechanism, a pedal assembly, a transmission mechanism, and a locking device. The frame is connected from front to back via a folding hinge; when switching between unfolded and folded states, all components remain connected and do not require disassembly, folding as a single unit. The guide components remain engaged within guide grooves and do not come out. A concave connecting rod and pedal limiting rotation design ensure safety and comfort. The frame is equipped with multiple locking mechanisms: a hinge lock, magnetic attraction, and a crank locking block. Even when folded, it can still be pushed. This invention achieves elliptical trajectory exercise mimicking human jogging, providing knee protection and fitness benefits. It features one-click folding without disassembly, a small size, portability, easy storage, stable operation, and durability, making it suitable for both home and outdoor use.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment technology, specifically a foldable, human-inspired elliptical track exercise bike for jogging and fitness. Background Technology

[0002] With the increasing demand for home fitness, elliptical trainer equipment has become popular due to its advantages such as knee protection, low impact, and full-body workout. However, existing elliptical trainer bikes generally have the following drawbacks: The frame is fixed and cannot be folded. It is large and heavy, making it difficult to put in the trunk of a car and inconvenient to carry and store. The pedaling trajectory of most folding bicycles on the market is a true circular motion trajectory, which cannot achieve the elliptical trajectory motion that mimics human jogging, resulting in insufficient fitness effect and comfort. Some folding bicycles that can achieve an elliptical trajectory require disassembling components such as pedals, linkages, and guides when folding, which is cumbersome, time-consuming, and labor-intensive, and parts are easily lost. Traditional foot pedals have a small surface area, concentrated force, or are fixed and cannot rotate, resulting in poor foot fit and a poor exercise experience.

[0003] Therefore, the market urgently needs a fitness bike that requires no disassembly, can be folded with one click, features elliptical motion, is ergonomically comfortable, portable, and durable. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a foldable, human-inspired elliptical trajectory exercise bike for jogging and fitness.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a foldable, human-inspired elliptical trajectory exercise bike, comprising: a frame, the frame being a foldable structure having an unfolded state and a folded state; a drive mechanism, including a central axle rotatably connected to the frame, a chainring fixed to the central axle, a crank connected to the chainring, and a connecting rod connected to the crank via a rear axle, a pair of cranks, a pair of rear axles, and a pair of connecting rods respectively located on the left and right sides of the frame; a pair of guide mechanisms respectively located on the left and right sides of the frame, including a guide groove provided on the frame, a guide member constrained by the guide groove, and a front axle of the connecting rod, the guide member being mounted on the front axle of the connecting rod, the guide member cooperating with the guide groove to move and constrain the trajectory of the connecting rod; a pair of pedal assemblies respectively located on the left and right sides of the frame, including a pedal axle, pedals, and a pedal limiting mechanism; a transmission mechanism; a linkage mechanism, including a drive mechanism, a transmission mechanism, a guide mechanism, and pedal assemblies; a front section locking post and a rear section locking post.

[0006] Specifically, the frame includes a front frame section, a rear frame section, and a folding hinge connecting the two, wherein the axis of the folding hinge is parallel to the central axis; the locking method of the folding hinge is selected from one or more combinations of eccentric cam, pin, threaded locking, and elastic buckle; the detachable seat can be installed on the front frame section or the rear frame section, or no seat may be installed.

[0007] Specifically, the guide groove is located in the front frame section, and the bottom bracket and crank are located in the rear frame section; when the frame is folded, the guide member moves in the guide groove in conjunction with the crank and connecting rod, and will not come out of the guide groove.

[0008] Specifically, the guide component is a roller; the guide groove is straight or arc-shaped; the roller and the guide groove are in rolling contact.

[0009] Specifically, an elastic body is installed between the foot pedal assembly and the connecting rod. After the foot pedal is stepped on and rotated a certain safe angle toward the ground, the foot pedal is pulled back to a horizontal position so that the foot pedal always fits the ball of the foot. The elastic body is located in front of, behind, or both in front of and behind the foot pedal axle.

[0010] Specifically, the angle between the line connecting the center of the central axle and the center of the rear wheel axle, and the line connecting the center of the rear wheel axle and the center of the front wheel axle, with the center of the rear wheel axle as the vertex, is an acute angle, a right angle, or an obtuse angle; correspondingly, the angle between the connecting rod with the pedal axle and the front and rear axles of the connecting rod is an acute angle, a right angle, or an obtuse angle. Specifically, the transmission mechanism is a chain drive, shaft drive, or belt drive.

[0011] Specifically, a positioning stop is provided on the connecting rod, the foot pedal, or between the foot pedal and the connecting rod to control the rotation angle of the foot pedal around the foot pedal axle. The positioning stop is provided in front of, behind, or both in front of and behind the foot pedal axle.

[0012] Specifically, the foot pedal connection part of the linkage is concave towards the center of the frame, conforming to the human body shape at or above the knee joint.

[0013] Specifically, the foot pedal assembly is provided with a foot pedal positioning protrusion, which is located in front of, behind, or simultaneously in front of and behind the foot pedal axle. Alternatively, the foot pedal can be folded upwards, or the foot pedal can be positioned by magnetic attraction after folding.

[0014] Specifically, the front or rear section of the frame is provided with a locking magnetic structure, which includes a locking block, a locking block rotating shaft, a locking block hinge lug, and a magnetic component. When folded or unfolded, it can automatically attract and position itself, thereby locking the linkage mechanism.

[0015] Specifically, the rear of the frame is equipped with a pusher roller, which can be rolled and pushed in conjunction with the front wheels when folded.

[0016] Specifically, the guide groove is equipped with a dust cover, or the transmission mechanism is equipped with a protective cover, to achieve closed protection when the frame is folded.

[0017] Specifically, the linkage mechanism includes a drive mechanism, a transmission mechanism, a guide mechanism, and a foot pedal assembly, which work together to achieve elliptical trajectory motion.

[0018] Specifically, there is magnetic attraction between the front and rear locking posts, which allows the front and rear locking posts to automatically attract and lock the front and rear frames after the frame is folded, preventing displacement.

[0019] The beneficial effects of this invention are: (1) The foldable elliptical track exercise bike that mimics human body jogging fitness described in this invention is highly portable: its volume is greatly reduced after folding, and it can be put into the trunk, under the bed, or in the wardrobe, making it convenient for home and travel use.

[0020] (2) The foldable elliptical track exercise bike for jogging fitness described in this invention can be folded with one click: no tools or disassembly are required to complete the unfolding or folding, and the operation is extremely simple.

[0021] (3) The foldable elliptical track exercise bike that mimics human body jogging is comfortable to use: it mimics human body jogging elliptical track, protects the knees and does not hurt the joints, and is suitable for long-term fitness.

[0022] (4) The foldable elliptical track exercise bike for jogging fitness described in this invention is ergonomic: the connecting rod has a concave design to reduce the stride width, and the large pedal has a limit rotation, which fits the foot without slipping or touching the ground.

[0023] (5) The foldable elliptical track exercise bike that mimics human body jogging fitness described in this invention has a reliable structure: the folding and guiding mechanism are designed in coordination, the movement is smooth and without interference, and it is durable and quiet. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the folded frame structure of the present invention; Figure 3 This is a schematic diagram of the connection structure between the foot pedal and the foot pedal shaft of the present invention; Figure 4 This is a schematic diagram of the connection structure between the foot pedal and the foot pedal positioning protrusion of the present invention. Figure 5 This is a schematic diagram of the structure of the foot pedal and connecting rod after the invention is unfolded; Figure 6This is a schematic diagram of the structure of the foot pedal and connecting rod after folding according to the present invention; Figure 7 This is a schematic diagram of the folding section of the vehicle frame of the present invention; Figure 8 for Figure 7 The cross-sectional view along line A is shown below; Figure 9 This is a schematic diagram of the foot pedal of the present invention before folding. Figure 10 This is a schematic diagram of the folded structure of the foot pedal of the present invention; Figure 11 This is an exploded view of the foot pedal of the present invention; Figure 12 This is a schematic diagram of the frame and locking magnetic structure of the present invention; Figure 13 This is a schematic diagram of the connecting rod and elastic body of the present invention; Figure 14 This is a schematic diagram of the rear frame section and crankshaft of the present invention; Figure 15 This is a schematic diagram of the rear frame section and transmission mechanism of the present invention; Figure 16 This is a diagram of the upper arc-shaped guide frame of the present invention; Figure 17 This is a diagram of the lower arc-shaped guide frame of the present invention; Figure 18 This is a diagram showing the folded front and rear frame locking mechanism of the present invention.

[0026] In the diagram: 1. Frame; 101. Front frame section; 102. Rear frame section; 103. Folding hinge; 2. Bottom bracket; 3. Chainring; 4. Crank; 5. Rear axle of connecting rod; 6. Connecting rod; 7. Guide groove; 8. Guide component; 9. Elastomer; 10. Pedal axle; 11. Pedal; 12. Pedal positioning protrusion; 13. Transmission mechanism; 14. Positioning stop; 15. Magnetic component; 16. Push roller; 17. Front axle of connecting rod; 18. Locking block; 19. Locking block rotating shaft; 20. Locking block hinge ear; 21. Front section locking post; 22. Rear section locking post; 23. Pedal magnetic attachment. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figures 1-18 As shown, the foldable elliptical jogging exercise bike of the present invention includes: a frame 1, which is a foldable structure, including a front frame section 101, a rear frame section 102, and a folding hinge 103 connecting the two; a central axle 2 is rotatably connected to the frame 1, a chainring 3 is fixedly connected to the central axle 2, a crank 4 is fixedly connected to the chainring 3, and the crank 4 is connected to a connecting rod 6 via a connecting rod rear axle 5; a connecting rod front axle 17 is installed at the front end of the connecting rod 6, a guide member 8 is connected to the connecting rod front axle 17, and a guide groove 7 is provided on the front frame section 101, with the guide member 8 rollingly engaging with the guide groove 7; a foot pedal axle 10, a foot pedal 11, a foot pedal positioning protrusion 12, and a positioning stop 14 are provided in the middle of the connecting rod 6; the frame 1 also includes a transmission mechanism 13, a locking magnetic structure, and push rollers 16; there are two or more push rollers 16, respectively arranged on the left and right sides of the frame 1; an elastic body 9 is installed between the foot pedal assembly and the connecting rod 6. With the rear wheel center as the vertex, the angle between the line connecting the center of the central axle 2 and the center of the rear wheel axle, and the line connecting the center of the rear wheel axle and the center of the front wheel axle, is an acute angle, a right angle, or an obtuse angle; correspondingly, with the pedal axle 10 as the center, the angle between the connecting rod 6 and the connecting rod front axle 17 and the connecting rod rear axle 5 is an acute angle, a right angle, or an obtuse angle.

[0030] The frame 1 has an unfolded state and a folded state. When folded, the drive mechanism, guide mechanism, pedal assembly, and transmission mechanism remain connected and can be folded as a whole with the frame without disassembly. The guide groove 7 has a U-shaped, V-shaped, T-shaped, H-shaped, or linear guide shape. The guide member moves in a straight line or arc trajectory within the guide groove, and the guide member 8 rolls within the guide groove 7 without falling out. The pedal 11 can be folded upwards for storage and magnetically positioned. After the pedal 11 is stepped on and rotated a certain safe angle towards the ground, the pedal 11 can be pulled back to a horizontal position, ensuring that the pedal 11 always fits the ball of the foot. The elastic body 9 is located in front of, behind, or simultaneously in front of and behind the pedal axle 10. Because the front and rear of the foot pedal shaft 10 can be set simultaneously, except for the positioning stop 14 which cannot work alone, other pure front and rear foot pedal positioning protrusions, pure elastic bodies, or combinations of foot pedal positioning protrusions and elastic bodies, or combinations of foot pedal positioning protrusions and positioning stops can all achieve the positioning function; the front section locking post 21 and the rear section locking post 22 magnetically lock the front and rear frames together.

[0031] The working principle of this embodiment is as follows: When the frame is unfolded and locked, the user steps on the foot pedal 11, the connecting rod 6 drives the guide 8 to roll along the guide groove 7, the crank 4, bottom bracket 2, and chainring 3 rotate synchronously, and the transmission mechanism 13 drives the entire vehicle to move, with the foot pedal forming an elliptical trajectory similar to human jogging. When folding, the folding hinge 103 is unlocked, and the rear frame section 102 rotates around the folding hinge axis. The guide 8 moves within the guide groove 7 in conjunction with the connecting rod without dislodging, and the foot pedal 11 folds upward; at the same time, the front frame locking pin 21 and the rear frame locking pin 22 magnetically lock each other, further locking the front and rear frames, so that the vehicle becomes a single unit after folding, making it easy to carry. This magnetic locking structure is merely an example (the installation location of the locking structure is not limited and can be placed on the frame or any other suitable part. The form of the locking structure is not limited, and it can be used by binding, pin type (pin inserted into pin hole), clamp type (clamping hinge), eccentric cam type (rotary locking), etc. to lock the front and rear frames together, so that the front and rear frames are fixed after folding, and the whole vehicle can be quickly folded into a compact state, which can be pushed by the push roller 16 in conjunction with the front wheel.

[0032] The beneficial effects of this embodiment are: it enables elliptical trajectory knee pad movement, the frame can be folded with one click, no parts need to be disassembled throughout the process, and no parts will fall off, greatly improving portability and making it suitable for use in multiple scenarios such as home, travel, and trunk storage.

[0033] Example 2: Based on Example 1, such as Figure 1 , Figure 2 As shown, the guide groove 7 is arranged in a straight line, and the guide member 8 rolls into the straight guide groove 7.

[0034] Working principle: The guide component 8 makes linear reciprocating motion in the linear groove, with uniform motion resistance and stable elliptical trajectory.

[0035] Beneficial effects: The elliptical trajectory provides balanced forward and backward movement as well as up and down movement, resulting in linear force distribution on the knee joint, stable knee protection, smoother hand and foot coordination for lifting, more graceful movement posture, and suitability for people of different heights and leg lengths.

[0036] Example 3: Based on Example 1, such as Figure 12As shown, a locking structure is provided on the side of the frame below the central axis 2. The locking block 18 rotates around the locking block rotation axis 19. At the same time, the magnetic suction component 15 automatically adsorbs and positions itself when folded or unfolded. The locking block 18 grips and locks the crank 4, connecting rod 6, and other linkage mechanisms. The bottom of the front frame section 101 and the rear frame section 102 are equipped with magnetic suction. After folding, they automatically adsorb and position themselves, locking the transmission mechanism. This is one of the magnetic suction structures, which includes setting it in other suitable positions on the frame to fix the cranks, connecting rods, pedals, chainrings, connecting rod shafts, guides, etc. of the front and rear frames. The locking structure includes: pin type (pin shaft inserted into pin hole), clamp type (clamping hinge), eccentric cam type (rotation locking, strap binding, thread, elastic buckle, etc.), ultimately achieving that after folding, the cranks, connecting rods, etc. are relatively fixed to the frame and will not shift, allowing the folded whole vehicle to be pushed smoothly.

[0037] Working principle: When folding, push the crank to the locking position, and the locking magnetic structure attracts and locks the linkage mechanism; when unfolding, release it without affecting the movement.

[0038] Beneficial effects: When folded, the linkage, crank, and pedals do not wobble or collide, making storage neater and pushing safer.

[0039] Example 4: Based on Example 1, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 9 , Figure 10 As shown, the pedal connection part of the linkage 6 is concave towards the center of the frame, conforming to the shape of the human body away from the knee joint; the pedal assembly is equipped with a pedal positioning protrusion 12 and a positioning stop 14 to control the pedal rotation angle, prevent the pedal from touching the ground and the foot from slipping off, and the pedal is positioned by the pedal magnet 23 after folding.

[0040] Working principle: The foot pedal positioning protrusion 12 and the positioning stop 14 work together to limit the foot pedal rotation range, so that the foot pedal fits the ball of the foot in real time; the concave connecting rod reduces the step width, which is suitable for more usage scenarios.

[0041] Benefits: Safer exercise, more natural gait, further knee protection, and improved comfort during long rides.

[0042] Example 5: Based on Example 1, such as Figure 1 , Figure 2 As shown, a pusher roller 16 is installed at the rear of the frame. When folded, the whole vehicle can be pushed by the front wheels in conjunction with the pusher roller 16.

[0043] Working principle: After folding, the body tilts and the push roller 16 touches the ground, making it easy to push like a suitcase, or easily push together with the front wheels.

[0044] Beneficial effects: No need to lift or carry, making movement easier and improving convenience for travel and storage.

[0045] Example 6: Based on Embodiment 1, the transmission mechanism 13 is one of chain drive, shaft drive or belt drive.

[0046] Beneficial effects: It allows for flexible selection based on cost, noise, and maintenance requirements, meeting the needs of different product positioning.

[0047] Example 7: Based on Example 1, the guide component 8 is made of polyurethane, nylon, polyoxymethylene or rubber.

[0048] Beneficial effects: wear-resistant, low noise, smooth rolling, extended mechanism life, and improved user experience.

[0049] Example 8: Please see the appendix Figure 16 Based on Embodiment 1, the guide groove 7 is arranged in an upper arc shape, and the guide member 8 rolls with the upper arc-shaped guide groove 7.

[0050] Working principle and beneficial effects: When the user exercises, the upper half of the elliptical trajectory of the foot pedal matches the upward force logic of the legs when jogging. This can reduce excessive stretching of the front thigh muscles, reduce pressure on the knee joint, and increase the upward force space when pedaling. It makes the coordinated lifting action of the hands and feet smoother. It is suitable for people with good leg flexibility who pursue a smooth exercise posture. It optimizes the force application experience on the basis of knee protection.

[0051] Example 9: Please see the appendix Figure 17 Based on Embodiment 1, the guide groove 7 is arranged in a downward arc shape, and the guide member 8 rolls within the downward arc-shaped guide groove 7.

[0052] Working principle and beneficial effects: During operation, the trajectory of the lower arc-shaped guide groove 7 is concave downwards, making the lower half of the elliptical path of the foot more in line with the ground. The force angle of the leg when stepping is closer to the natural running push-off posture, which can enhance the participation of the hamstring and gluteal muscles, improve the efficiency of lower body power generation, and make the knee joint flexion range more gentle, avoiding the joint burden caused by excessive knee lifting. It is suitable for people with strong leg strength who prefer a stable pedaling force. Users can achieve a full-body exercise by coordinating the force of their hands and feet while standing, which not only meets the needs of body shaping and weight loss, but also effectively protects the knee joint, taking into account both fitness effect and exercise safety.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A foldable elliptical track exercise bicycle simulating human jogging, characterized in that, include: The frame (1) is a foldable structure, having an unfolded state and a folded state; The drive mechanism includes a central shaft (2) rotatably connected to the frame (1), a chainring (3) fixed to the central shaft (2), a crank (4) connected to the chainring (3), and a connecting rod (6) connected to the crank (4) via a connecting rod rear axle (5). A pair of cranks (4), a pair of connecting rod rear axles (5), and a pair of connecting rods (6) are respectively located on the left and right sides of the frame (1). A pair of guide mechanisms are provided on the left and right sides of the frame (1), including a guide groove (7) provided on the frame (1), a guide member (8) constrained by the guide groove (7), and a connecting rod front axle (17). The guide member (8) is installed on the connecting rod front axle (17), and the connecting rod front axle (17) is installed at the front end of the connecting rod (6). The guide member (8) and the guide groove (7) cooperate to move to constrain the trajectory of the connecting rod (6). A pair of pedal assemblies are located on the left and right sides of the frame (1), including a pedal axle (10), a pedal (11) and a pedal limiting mechanism; Transmission mechanism (13); The linkage mechanism includes a drive mechanism, a transmission mechanism (13), a guide mechanism, and a foot pedal assembly.

2. The foldable elliptical exercise bike as claimed in claim 1, wherein, The frame (1) includes a front frame section (101), a rear frame section (102), and a folding hinge (103) connecting the two. The axis of the folding hinge (103) is parallel to the central axis (2). The locking method of the folding hinge (103) is selected from one or more combinations of eccentric cam, pin, threaded locking, and elastic buckle. The detachable seat can be installed on the front frame section (101) or the rear frame section (102) or without a seat.

3. The foldable elliptical exercise bike as claimed in claim 2, wherein, The guide groove (7) is located in the front frame section (101), and the central shaft (2) and crank (4) are located in the rear frame section (102). When the frame (1) is folded, the guide member (8) moves in the guide groove (7) in conjunction with the crank (4) and connecting rod (6) and will not come out of the guide groove (7).

4. The foldable elliptical exercise bike as claimed in claim 1, wherein, The guide member (8) is a roller; the guide groove (7) is straight or arc-shaped; the roller and the guide groove (7) are in rolling cooperation.

5. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, An elastic body (9) is installed between the foot pedal assembly and the connecting rod (6). After the foot pedal (11) is stepped on and rotated to a certain safe angle towards the ground, the foot pedal (11) is pulled back to the horizontal state so that the foot pedal (11) always fits the foot. The elastic body (9) is located in front of, behind, or simultaneously in front of and behind the foot pedal shaft (10).

6. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, The line connecting the center of the central axle (2) with the center of the rear wheel axle and the line connecting the center of the rear wheel axle with the center of the front wheel axle, with the center of the rear wheel axle as the vertex, has an acute angle, a right angle or an obtuse angle between them; the corresponding connecting rod (6) has the pedal axle (10) as the center, and the angle between it and the connecting rod front axle (17) and the connecting rod rear axle (5) has an acute angle, a right angle or an obtuse angle.

7. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, The transmission mechanism (13) is a chain drive, shaft drive or belt drive.

8. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, A positioning stop (14) is provided on the connecting rod (6), the pedal shaft (10), or between the pedal shaft and the connecting rod (6) to control the rotation angle of the pedal (11) around the pedal shaft (10). The positioning stop (14) is located in front of, behind, or simultaneously in front of and behind the pedal shaft (10).

9. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, The foot pedal connection part of the link (6) is concave towards the center of the frame (1), conforming to the human body shape far from the knee joint.

10. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, The foot pedal assembly is provided with a foot pedal positioning protrusion (12), which is located in front of, behind or simultaneously in front of and behind the foot pedal shaft (10), or the foot pedal (11) can be folded upwards, or the foot pedal can be positioned by a foot pedal magnet (23) after folding.

11. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, The frame (1) is provided with a locking magnetic structure at the front or rear. The locking magnetic structure includes a locking block (18), a locking block rotating shaft (19), a locking block hinge ear (20), and a magnetic component (15). When folded or unfolded, it can automatically adsorb and position itself, thereby locking the linkage mechanism.

12. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, The rear of the frame (1) is provided with a pusher roller (16), which can be rolled and pushed in conjunction with the front wheel after being folded.

13. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, The guide groove (7) is equipped with a dust cover, or the transmission mechanism (13) is equipped with a protective cover.

14. A foldable, human-inspired elliptical track exercise bike for jogging and fitness according to claim 1, characterized in that, The bicycle is equipped with a locking structure for locking the front and rear frames and / or linkage mechanisms in the unfolded and / or folded states.

Images