A fitness training device

Abstract

This application discloses a fitness training device, including: a pedal, a frame, and a self-locking mechanism. The pedal is movably connected to the frame. The fitness training device has a training mode and a storage mode. When the pedal moves relative to the frame to a first relative position, the fitness training device is in the training mode; when the pedal moves relative to the frame to a second relative position, the fitness training device is in the storage mode. The self-locking mechanism is disposed between the frame and the pedal. The self-locking mechanism is configured to be unlocked when the fitness training device is in the training mode, and to switch from the unlocked state to the locked state when the frame moves towards the pedal, causing the fitness training device to change from the training mode to the storage mode, thereby preventing the fitness training device from further changing towards the storage mode. In the event of an accidental tilt of the frame, the self-locking mechanism can lock the relative position of the frame and the pedal, preventing the frame from tilting further and causing injury.

Description

Technical Field

[0001] This application relates to the technical field of equipment, and more particularly to a fitness training device. Background Technology

[0002] To improve space utilization or facilitate the storage of fitness equipment, some fitness equipment on the market is equipped with folding storage mechanisms. The original intention of such mechanisms is that when the equipment is not in use, it can be folded up through the folding structure, which greatly reduces the floor space occupied and is suitable for storage needs in small spaces; when the equipment needs to be used, the operator can unfold the folded equipment and then operate the locking component to put the equipment into a stable working position, thereby ensuring the normal conduct of the fitness process. However, existing fitness equipment equipped with folding and storage mechanisms presents certain safety hazards in practical applications: After the equipment is unfolded, the locking mechanism relies primarily on manual operation. With frequent use, operator negligence, or unfamiliarity with the procedure, the locking mechanism may fail to reliably lock after unfolding. If the operator then uses the equipment for training, the unglued folding structure cannot withstand external forces due to the equipment's inability to maintain a stable working posture with the locking mechanism engaged, leading to an imbalance in the equipment's center of gravity and potentially causing it to tip over. Such accidents not only damage the equipment itself but also pose a direct threat to the operator's safety, such as causing bumps or crush injuries, severely impacting the safety and reliability of the fitness equipment. Utility Model Content

[0003] The purpose of this application is to provide a fitness training device that can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution: On one hand, a fitness training device is provided, including: a pedal, a frame, and a self-locking mechanism. The pedal is movably connected to the frame. The fitness training device has at least a training mode and a storage mode. When the pedal moves relative to the frame to a first relative position, the fitness training device is in the training mode; when the pedal moves relative to the frame to a second relative position, the fitness training device is in the storage mode. The self-locking mechanism is disposed on the frame. The self-locking mechanism is configured such that when the fitness training device is in the training mode, the self-locking mechanism is in an unlocked state, and when the frame is moved towards the pedal, causing the fitness training device to change from the training mode to the storage mode, the self-locking mechanism switches from the unlocked state to the locked state to prevent the fitness training device from further changing towards the storage mode. In the event of an accidental tilt of the frame, the self-locking mechanism can lock the relative position of the frame and the pedal, preventing the frame from tilting further and causing injury.

[0005] Furthermore, the fitness training equipment also includes a locking component that can switch between a locked position and an unlocked position. When the locking component is in the locked position, the fitness training equipment is fixed in the training mode. When the fitness training equipment is in the training mode and the locking component is in the unlocked position, and the frame moves towards the pedal, the self-locking mechanism switches from the unlocked state to the locked state. The locking component can lock the relative position of the frame and the pedal. If the locking component is not locked, the self-locking mechanism can automatically switch to the locked state, thereby passively locking the frame and the pedal to prevent accidents.

[0006] Furthermore, a training component is provided on the frame. The training component includes a resistance source, a pull rope, a pulley system, and a training operation unit. One end of the pull rope is connected to the resistance source, and the other end is connected to the training operation unit. The pulley system is adjustable along the frame. The pull rope passes through the pulley system to guide the pull rope and adjust the position of the rope outlet.

[0007] Furthermore, the self-locking mechanism includes a movable component movably disposed at the bottom of the frame and a retainer disposed on the pedal. When the fitness training equipment is in the training mode, and when the frame is moved towards the pedal, causing the fitness training equipment to transition from the training mode to the storage mode, the movable component moves at least partially to engage with the retainer to achieve locking. This fitness training equipment can trigger relative displacement of the movable component and at least partially engage with the retainer to lock in place when the locking component fails to lock, causing the frame to tilt relative to the pedal, thereby preventing the frame from tipping over and ensuring safe use.

[0008] Furthermore, the active component includes a linked drive unit and a locking unit. The locking unit is used to engage with the card holder. When the fitness training device is in the training mode, the drive unit remains in a first state, and the locking unit is disengaged from the card holder. When the frame moves towards the pedal, the drive unit moves from the first state to a second state, and the locking unit switches to engage with the card holder to achieve locking. The state of the drive unit passively switches when the fitness training device changes from the training mode to the storage mode, so that the relative position between the locking unit and the card holder changes. When the frame tilts unexpectedly, the locking unit can engage with the card holder and lock.

[0009] Furthermore, a support portion is formed at the bottom of the frame, and the driving portion is an abutment portion. When the fitness training equipment is in the training mode, the support portion remains in contact with the support surface, the abutment portion remains in contact with the support surface, and the locking portion is disengaged from the card seat. When the frame moves towards the pedal, the abutment portion extends out of the support portion and, in conjunction with the locking portion, switches to engage with the card seat to achieve locking. Through the linkage between the abutment portion and the locking portion, the locking portion can be reliably driven to insert into the card seat when the frame tilts, improving the stability and responsiveness of the self-locking mechanism.

[0010] Furthermore, the abutment is rotatably mounted on the bottom of the frame, and one end of the abutment is connected to the locking part. When the frame is in the training mode, the abutment is restricted from extending beyond the support part, thus allowing the locking part to disengage from the card seat. When the frame moves towards the pedal direction, the abutment is released from restriction, allowing the locking part to move and engage with the card seat. The movement of the abutment is restricted by the gravity of the frame when it is vertically arranged, meaning the abutment cannot rotate. In this case, the locking part remains disengaged from the card seat. Only when the frame tilts is this restriction released, causing the abutment to rotate and engage with the card seat to lock.

[0011] Furthermore, an elastic element is provided between the locking part and the frame, which ensures that the locking part always tends to move towards the card slot. The elastic element provides a continuous driving force to the locking part, ensuring that it quickly and reliably inserts into the card slot when the frame is tilted, thus improving the immediacy and reliability of the self-locking.

[0012] Furthermore, a locking sleeve is provided at the bottom of the frame facing the pedal. The locking part is movably installed within the locking sleeve. Both ends of the elastic element abut against the locking part and the locking sleeve respectively, ensuring that the locking part always tends to extend out of the locking sleeve and move towards the card slot. The locking sleeve provides stable guidance for the locking part, and in conjunction with the elastic element mounting structure, ensures precise displacement and reliable insertion of the locking part into the card slot, improving self-locking stability.

[0013] Furthermore, the end of the locking pin sleeve opposite to the pedal has a stepped portion, and the outer periphery of the locking portion has a stepped post. The elastic element is sleeved on the outer periphery of the locking portion, and its two ends abut against the stepped portion and the stepped post, respectively. The stepped portion of the locking pin sleeve and the stepped post of the locking portion cooperate to limit the elastic element, preventing it from shifting or falling off, ensuring stable transmission of elastic force, ensuring accurate insertion of the locking portion into the card seat, and improving the reliability of self-locking.

[0014] Furthermore, the abutment portion includes a first end, a second end, and a third end arranged sequentially. The second end is located between the first end and the third end, and the first end is located on the side away from the locking portion. The second end is rotatably connected to the bottom of the frame via a pivot. The first end is connected to the locking portion. When the frame is in the training mode, the third end is restricted by the frame, thereby causing the first end to pull the locking portion away from the card holder. When the frame moves towards the pedal direction, the third end is released from restriction, allowing the first end to flip towards the pedal direction with the second end as a fulcrum, thereby causing the locking portion to partially insert into the card holder. The three-section abutment portion forms a lever linkage with the second end as a fulcrum. Normally, the locking portion is separated by the restricted pull of the third end. When tilted, it is unlocked and quickly pushed into the card holder, improving the self-locking response speed and action reliability.

[0015] Furthermore, the third end is rotatably connected to the roller via a pin, and a clearance hole is provided at the bottom of the frame for the roller to pass through. The roller at the third end moves through the clearance hole, converting sliding friction into rolling friction, reducing wear and making unlocking smoother, thereby improving the reliability of the self-locking action and the lifespan of the components.

[0016] Furthermore, the first end is connected to one end of the locking part via a connector, so that the abutment part is located on the bottom of the frame away from the pedal. The abutment part being located on the bottom of the frame away from the pedal and connected to the locking part via the connector allows for the release of restrictions in the initial stage of frame tilting, quickly triggering the locking part and improving the timeliness of self-locking.

[0017] Furthermore, the locking part has a screw at the end opposite to the pedal, one end of the connector has a threaded sleeve that engages with the screw, and the other end of the connector has a connecting seat that engages with the first end. The engagement of the screw with the threaded sleeve and the connecting seat with the first end ensures a secure connection and facilitates disassembly and assembly, thereby improving the stability and maintenance convenience of the self-locking mechanism.

[0018] Furthermore, the locking part has a boss at one end facing the pedal, and the inner side of the locking seat has a groove that engages with the boss. The engagement between the boss and the groove prevents the locking part from slipping out, significantly enhancing the firmness and reliability of the self-locking mechanism.

[0019] The beneficial effects of this application are as follows: In response to the core problem that existing equipment relies on manual locking and is prone to tipping over due to negligence, this equipment constructs a passive protection mechanism that triggers locking upon abnormal tilting through a self-locking mechanism. Even if the operator forgets the manual locking steps, passive emergency locking can be achieved through the autonomous switching of the self-locking mechanism's state when the frame tilts, effectively avoiding collisions and crushing injuries to personnel caused by the equipment tipping over, while also preventing damage to the equipment due to tipping over, and significantly improving the safety of equipment use. Attached Figure Description

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram (training mode) of the fitness training equipment described in the embodiments of this application; Figure 2 A cross-sectional view of the fitness training equipment described in the embodiments of this application. Figure 1 (Training format); Figure 3 This is a partially exploded view of the active component described in the embodiments of this application within the rack; Figure 4 This is an assembly diagram of the active components described in the embodiments of this application on a rack; Figure 5 This is a bottom schematic diagram of the rack described in the embodiment of this application; Figure 6 This is an assembly drawing of the locking sleeve and locking part described in the embodiments of this application on the frame; Figure 7 This is a schematic diagram of the pedal described in an embodiment of this application; Figure 8 This is an assembly drawing of the abutment portion and roller described in the embodiments of this application; Figure 9 This is an exploded view of the abutment portion and roller described in the embodiments of this application; Figure 10 This is a schematic diagram of the locking part described in an embodiment of this application; Figure 11 This is a schematic diagram of the card pin sleeve described in the embodiments of this application; Figure 12 This is a schematic diagram of the connector described in an embodiment of this application; Figure 13 This is a schematic diagram illustrating the pedal switching to its stowed state according to an embodiment of this application; Figure 14This is a schematic diagram of the frame tilting as described in the embodiments of this application. Figure 1 ; Figure 15 This is a schematic diagram of the frame tilting as described in the embodiments of this application. Figure 2 ; Figure 16 This is a schematic diagram of the frame tilting as described in the embodiments of this application. Figure 3 .

[0022] In the diagram: 1. Pedal; 2. Frame; 3. Locking assembly; 4. Self-locking mechanism; 5. Training assembly; 201. Clearance hole; 202. Support part; 401. Movable component; 402. Card holder; 501. Resistance source; 502. Pull rope; 503. Pulley block; 4011. Abutting part; 4012. Locking part; 4013. Elastic element; 4014. Snap pin sleeve; 4015. Rotating shaft; 4016. Pin shaft; 4017. Roller; 4018. Connecting part; 4019. Snap ring; 4021. Snap groove; 40111, First end; 40112, Second end; 40113, Third end; 40121, Stepped column; 40122, Screw; 40123, Boss; 40141, Stepped portion; 40181, Screw sleeve; 40182, Connecting seat. Detailed Implementation

[0023] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Existing fitness training equipment suffers from deep-seated safety risks and operational defects. From a human-computer interaction perspective, the locking operation, which relies on manual intervention, is essentially an open operating procedure lacking a mandatory constraint mechanism. In high-frequency use scenarios, operators are prone to oversights due to fatigue. Temporary interruptions or complex operating procedures may cause memory gaps, resulting in the equipment being in an incompletely locked state. In actual use, this incomplete locking state may cause the equipment to suddenly rotate and fold during exercise, causing users to lose their balance, get trapped, or fall, resulting in serious injuries such as fractures and dislocations.

[0026] From a mechanical perspective, an unlocked folding structure cannot form a stable force transmission path when subjected to tensile loads, causing the equipment's center of gravity to shift. Taking typical fitness exercises such as seated rows and lat pulldowns as examples, the instantaneous tensile force will cause local stress concentration on the equipment. When this stress exceeds a critical threshold, the equipment will tip over. This tipping over can not only injure nearby users but also damage surrounding property, causing property loss.

[0027] From the perspective of usage scenarios, users in home fitness environments are mostly non-professionals with insufficient understanding of operating procedures; the high frequency of equipment turnover in small studios significantly increases the risk of equipment not being locked properly. Once equipment malfunctions due to not being locked properly, it can easily lead to irreparable consequences.

[0028] like Figures 1-16 As shown, this embodiment provides a fitness training device, including: a pedal 1, a frame 2, and a self-locking mechanism 4. The frame 2 is rotatably connected to the pedal 1 and has a first relative position and a second relative position. After the pedal 1 rotates from the first relative position to the second relative position, it can be folded and stored. The self-locking mechanism 4 is configured to lock the current relative position of the frame 2 and the pedal 1 when the frame 2 rotates towards the pedal 1 in the first relative position, so as to prevent the frame 2 from continuing to turn towards the pedal 1.

[0029] Specifically, the fitness training equipment has at least a training mode and a storage mode. When the pedal 1 moves to a first relative position relative to the frame 2, the fitness training equipment is in the training mode for the user to train. When the pedal 1 moves to a second relative position relative to the frame 2, the fitness training equipment is in the storage mode, with the pedal 1 folded up for easy storage. The self-locking mechanism 4 is disposed between the frame 2 and the pedal 1. When the fitness training equipment is in training mode, the self-locking mechanism 4 is in the unlocked state. When the frame 2 moves towards the pedal 1, causing the fitness training equipment to transition from the training mode to the storage mode, the self-locking mechanism 4 switches from the unlocked state to the locked state to prevent the fitness training equipment from further transitioning to the storage mode. This self-locking mechanism 4 automatically triggers when the frame 2 moves towards the pedal 1, causing the fitness training equipment to transition from the training mode to the storage mode, ensuring that the fitness training equipment remains in the training mode and preventing the equipment from tipping over or folding into the storage state due to force applied by the user.

[0030] Continue to refer to Figure 1 In some embodiments, the fitness training device includes a locking component 3, which is switchable between a locked position and an unlocked position. When the locking component 3 is in the locked position, the fitness training device is fixed in the training mode, and the self-locking mechanism 4 is in the unlocked state. When the fitness training device is in the training mode and the locking component 3 is in the unlocked position, and the frame 2 moves toward the pedal 1, the self-locking mechanism 4 switches from the unlocked state to the locked state.

[0031] The fitness training equipment includes a locking component 3, which locks the equipment in a stable training position. The equipment also includes a self-locking mechanism 4, which automatically triggers to lock in the event that the locking component 3 is not locked or malfunctions. This ensures the equipment remains in its working position and prevents it from tipping over or folding into a storage position due to force applied by the user. In this embodiment, the self-locking mechanism 4 does not function when the locking component 3 is normally locked; it only automatically triggers when the locking component 3 is not locked or malfunctions, providing safety assurance for the use of the fitness training equipment.

[0032] In some embodiments, a training component 5 is provided on the frame 2. The training component 5 includes a resistance source 501, a pull rope 502, a pulley system 503, and a training operation unit. The resistance source 501 is located inside the frame 1 and can be a motor. One end of the pull rope 502 is connected to the resistance source 501, and the other end is connected to the training operation unit, which can be a handle for easy gripping by the user. The pulley system 503 is adjustable along the position of the frame 1. The pull rope 502 passes through the pulley system 503 to guide the pull rope 502 and adjust the position of the rope outlet to meet the needs of different training movements of the user. During use, when the user holds the training operation unit for training, the frame 2 tends to rotate towards the pedal 1 regardless of whether the locking component 3 is in the locked or unlocked position. When the user uses the device for training, the frame 2 will be subjected to a force that rotates towards the pedal 1. Therefore, the self-locking mechanism 4 can passively lock and defend when the locking component 3 is in the unlocked position to prevent the frame 2 from tilting further.

[0033] Specifically, the self-locking mechanism 4 includes a movable component 401 movably disposed at the bottom of the frame 2 and a retainer 402 disposed on the pedal 1. When the fitness training equipment is in the training mode, and when the frame 2 is moved towards the pedal 1, causing the fitness training equipment to change from the training mode to the storage mode, the movable component 401 is at least partially moved to engage with the retainer 402. Moreover, when the fitness training equipment is in the training mode, the movable component 401 and the retainer 402 are always separate. When the fitness training equipment is in the training mode and the locking component 3 is in the unlocked position, when the frame 2 is moved towards the pedal 1, i.e., when the frame 2 is tilted relative to the pedal 1, the movable component 401 can be triggered to undergo relative displacement, causing the movable component 401 to engage and lock with the retainer 402 at least partially, thereby locking the frame 2 in the current tilted position, preventing the frame from tipping over, and ensuring safe use.

[0034] Based on the above scheme, the frame 2 and the pedal 1 are connected by a rotation to freely switch between storage and training modes. When the device is in training mode, the operator can switch the locking component 3 to the locked position. The rigid constraint of the locking component 3 directly fixes the frame 2 in the use posture. At this time, the movable component 401 of the self-locking mechanism 4 is separated from the card seat 402 on the pedal 1, which does not affect the stable use of the frame 2 and also reserves space for self-locking triggering in abnormal situations. When the operator neglects to allow the locking component 3 to be in the unlocked position, the frame 2 will naturally tilt towards the pedal 1 along the rotation connection point with the pedal 1 due to the loss of the fixing force of the locking component 3. This tilting action will trigger the movable component 401 to displace relative to the frame 2, so that the movable component 401 is at least partially embedded in the card seat 402 of the pedal 1. Through the mechanical locking action of the movable component 401 and the card seat 402, the frame 2 is locked in the current tilted position, preventing the frame 2 from tilting further and avoiding its overall tipping.

[0035] It should be noted that this application does not specifically limit the form and structure of the displacement of the movable component 401. Those skilled in the art will understand that the final form and structure are as follows: before displacement, the movable component 401 remains detached from or separated from the card holder 402; after displacement, at least a portion of the movable component 401 can be engaged and locked with the card holder 402. Furthermore, this application does not specifically limit the form in which the movable component 401 is triggered to displace when the frame 2 tilts towards the pedal 1 in training mode. Those skilled in the art will understand that the linkage form should be such that the displacement of the frame 2 is linked to the displacement of the movable component 401, thereby enabling at least a portion of the movable component 401 to be engaged and locked with the card holder 402.

[0036] Addressing the technical problem of traditional fitness equipment relying on manual operation of locking devices, which can easily lead to tipping accidents due to human negligence, this equipment innovatively adopts a passive self-locking protection system. When the frame 2 tilts abnormally, the mechanical interlock between the movable component 401 and the card holder 402 achieves automatic positioning and emergency locking, effectively avoiding the risk of mechanical injury caused by equipment tipping over, while also reducing the probability of physical damage to the equipment, comprehensively improving the safety and reliability of equipment use. Furthermore, the self-locking mechanism 4 uses a purely mechanical triggering mechanism; the displacement caused by the tilting of the frame 2 triggers the linkage of the movable component 401, requiring no additional operation or mastery of complex control procedures by the operator. This significantly reduces reliance on the operator's skill level and effectively avoids safety protection failures due to human error. Furthermore, under normal training conditions, the movable component 401 of the self-locking mechanism 4 remains in a non-contact separated state from the card holder 402, ensuring that the structural rigidity and stability of the frame 2 are not affected. This satisfies the stability requirements of high-intensity strength training while fully retaining the convenient storage advantages of traditional folding equipment. The self-locking mechanism 4 achieves its core protective function solely through the cooperation of the movable component 401 and the card holder 402. With fewer components and a clear mechanical cooperation logic, it eliminates the need for complex electrical control components, reducing manufacturing costs and maintenance difficulty. It can also adapt to vibration, impact, and other conditions that may occur in fitness settings, exhibiting strong long-term stability and further enhancing the overall practical value of the equipment.

[0037] It should be added that the locking engagement between the movable component 401 and the card holder 402 is limited to the case where the frame 2 is tilted relative to the pedal 1, that is, the pedal 1 is still placed horizontally. The purpose of this design is to avoid affecting the normal storage of the equipment, because the normal switching from training mode to storage mode is to fold the pedal 1 towards the frame 2 to a parallel or roughly parallel state, thereby correctly completing the storage. Therefore, the self-locking mechanism 4 can ensure safe use and prevent accidental tipping, while not interfering with the original storage function and normal use function of the equipment.

[0038] In some embodiments, the active component 4 includes a linked drive unit and a locking unit 4012. The locking unit 4012 is used to engage with the card holder 402. When the fitness training device is in the training mode, the drive unit remains in a first state, and the locking unit 4012 is disengaged from the card holder 402. When the frame 2 moves towards the pedal 1, the drive unit moves from the first state to a second state, and the locking unit 4012 is switched to engage with the card holder 402 to achieve locking. Through the passive switching of the drive unit's state, the relative position between the locking unit 4012 and the card holder 402 changes. When the frame 2 tilts unexpectedly, the locking unit 4012 can engage with the card holder 402 and lock.

[0039] This application does not specifically limit the implementation scheme of the drive unit linkage locking unit 4012. The possible implementation methods of the drive unit linkage locking unit 4012 include at least the following: First, the movement of the drive unit is transmitted to the locking unit 4012 via a lever assembly. When the drive unit rotates downward or swings upward when the frame 2 is tilted, one end of the lever moves synchronously with the drive unit, while the other end pushes or pulls the locking unit 4012 in the opposite direction to slide in a straight line. For example, when the drive unit rotates at an angle, the lever amplifies the movement, causing the locking unit 4012 to translate a certain distance towards the card holder 402, and finally insert into the card holder 402 to achieve engagement.

[0040] Second, the driving part and the locking part 4012 are engaged by a sloped structure. In the first state, the slope of the driving part is away from the locking part 4012, and at this time the locking part 4012 is separated from the card seat 402 under the action of the reset member; when the driving part moves laterally or moves vertically due to the tilt of the frame 2, its slope gradually squeezes the corresponding slope of the locking part 4012, converting the translation / lifting motion of the driving part into the lateral motion of the locking part 4012, causing the locking part 4012 to move closer to the card seat 402 and engage.

[0041] Third, in the first state, the drive unit is magnetically attracted to the locking part 4012, keeping it separated from the card holder 402; when the frame 2 tilts, causing the position of the drive unit to shift, the magnetic force weakens or disappears, and the reset spring releases its elastic force to push the locking part 4012 to move towards the card holder 402, thus achieving engagement.

[0042] Fourth, the drive unit and the locking unit 4012 are respectively equipped with gear and rack structures. In the first state of the drive unit, the gear and rack are engaged but there is no relative movement, and the locking unit 4012 is separated from the card seat 402; when the drive unit rotates due to the tilt of the frame 2, the gear meshing drives the rack and the locking unit 4012 to move in a straight line, precisely controlling the locking unit 4012 to move towards the card seat 402 and engage.

[0043] In some embodiments, a support portion 202 is formed at the bottom of the frame 2, and the driving portion is an abutment portion 4011. When the fitness training equipment is in the training mode, the support portion 202 remains in contact with the support surface, the abutment portion 4011 remains in contact with the support surface, and the locking portion 4012 is disengaged from the card seat 402. When the frame 2 moves toward the pedal 1, the abutment portion 4011 extends out of the support portion 202 and the locking portion 4012 is switched to engage with the card seat 402 to achieve locking.

[0044] The abutment part 4011 is vertically slidably fitted into a pre-set guide hole or guide groove in the support part 202. Its bottom has an arc-shaped contact head, and its top is linked to the horizontally arranged locking part 4012 via a sloping slider. When the fitness training equipment is in training mode, the support part 202 contacts the support surface, and the abutment part 4011 retracts into the guide hole under the upward supporting force of the support surface. At this time, there is no pressure on the contact surface between the sloping slider and the locking part 4012, and the locking part 4012 disengages from the card seat 402. When the frame 2 moves towards the pedal 1, after the support part 202 partially disengages from the support surface, the abutment part 4011 loses the supporting force of the support surface and slides vertically downward along the guide hole under its own gravity. The contact head extends out of the support part 202 and abuts the support surface. Simultaneously, the top sloping slider pushes the locking part 4012 horizontally towards the card seat 402, ultimately engaging with the card seat 402 to achieve locking.

[0045] Alternatively, the abutment part 4011 is rotatably mounted inside the support part 202 via a transverse pivot. One end of the rotating rod is the abutment end, and the other end is hinged to the horizontal locking part 4012 via a connecting rod. In training mode, the support part 202 contacts the support surface, and the abutment end is supported by the support surface to keep the rotating rod horizontal. The abutment end is retracted into the support part, the connecting rod is in a relaxed state, and the locking part 4012 is separated from the card seat 402. When the frame 2 moves toward the pedal 1, the support part 202 disengages from the support surface. After the abutment end loses its support, the rotating rod rotates downward around the pivot, and the abutment end extends out of the support part 202 and abuts the support surface. At the same time, the other end pulls the locking part 4012 horizontally through the connecting rod, causing the locking part 4012 to engage with the card seat 402 to complete the locking.

[0046] In some embodiments, the abutment portion 4011 is rotatably mounted on the bottom of the frame 2, and one end of the abutment portion 4011 is connected to the locking portion 4012. When the frame 2 is in the training mode, the abutment portion 4011 is restricted from extending out of the support portion 202, thereby enabling the locking portion 4012 to disengage from the card holder 402. When the frame 2 moves towards the pedal 1, the abutment portion 4011 is released from restriction, allowing the locking portion 4012 to move and engage with the card holder 402. The abutment part 4011 is restricted mainly because it is subject to the weight of the frame 2 itself, which prevents it from extending beyond the support part 202 and thus prevents it from moving relative to the frame 2. The restriction is lifted when the frame 2 is tilted, because the support part 202 partially detaches from the support surface. At this time, the abutment part 4011 is no longer subject to the weight of the frame 2, and it can extend partially or completely beyond the support part 202, thereby moving relative to the frame 2.

[0047] Specifically, when the fitness training equipment is in training mode and the locking component 3 is in the locked position, the frame 2 maintains a stable supporting posture. At this time, the support part 202 and the support surface (i.e., the placement plane or ground) of the frame 2 together form a mechanical constraint on the abutment part 4011. That is, the abutment part 4011 is restricted from rotating, and the end connected to the locking part 4012 cannot be displaced. This pulls the locking part 4012 to stay away from the card seat 402, ensuring that the locking part 4012 does not contact the card seat 402. This does not interfere with the normal supporting rigidity of the frame 2, and also reserves space for self-locking in subsequent abnormal working conditions. When the locking component 3 is in the unlocked position, and the frame 2 tilts relative to the pedal 1 due to the loss of fixing force, part of the support part 202 disengages from the support surface, and the abutment part 4011 extends out of the support part 202. The mechanical constraint originally formed by the support part 202 and the support surface is invalidated. At this time, the abutment part 4011 can still maintain contact with the support surface. However, since the abutment part 4011 is rotatably installed at the bottom of the frame 2, it can swing freely around its own rotation axis after the constraint is released. During the tilting process of the frame 2, the abutment part 4011 rotates under the action of gravity or the torque caused by the tilting of the frame 2. One end of its connecting locking part 4012 moves towards the card seat 402, and finally pushes part of the locking part 4012 into the card seat 402 on the pedal 1. Through the mechanical engagement between the locking part 4012 and the card seat 402, the frame 2 is locked in the current tilted position, preventing it from tipping over.

[0048] Furthermore, the frame 2 is vertically positioned relative to the support surface. In its stored state, the fitness training equipment is placed on the support surface via the support part 202. In its training state, the pedal 1 contacts the support surface, and the pedal 1 is used for the trainee to stand. Through the cooperation of the support part 202 and the vertical frame 2, the equipment is compactly placed in its stored state, significantly reducing its footprint. This allows it to easily fit into narrow spaces in small apartments, such as corners of balconies or under beds, solving the space-consuming problem of traditional fitness training equipment storage. When switching to training mode, the pedal 1 unfolds to form a large, non-slip support surface, effectively lowering the equipment's center of gravity and ensuring stability and stability during squats, deadlifts, and other exercises, thus avoiding the risk of tipping over. Simultaneously, the support functions of the support part 202 and the pedal 1 are independently distinct, allowing for quick mode switching without additional disassembly or adjustment. This convenient operation avoids damage from component collisions. In stored mode, the elastic material of the support part 202 cushions pressure and protects the ground, while the large support area of ​​the pedal 1 during training reduces wear and tear on both the ground and the equipment, extending its overall lifespan.

[0049] As an optional specific implementation, the movable connection between pedal 1 and frame 2 can also be a composite connection of folding and sliding. For example, pedal 1 is first folded and connected to frame 2 via a hinge, while an auxiliary slide rail is added to frame 2. After pedal 1 is flipped to a specific angle, it can slide further towards frame 2 along the slide rail. In training mode, pedal 1 is first flipped and unfolded to a horizontal position, and then slides out along the slide rail to the first relative position; in storage mode, pedal 1 first slides along the slide rail towards frame 2, and then flips and folds to the second relative position close to frame 2. This connection method can be achieved through flipping limit, sliding lock, and cooperation with a self-locking mechanism. When the pedal is converted from training mode to storage mode, the self-locking mechanism can lock the position of the pedal during the sliding phase to prevent it from shifting during the folding process.

[0050] Alternatively, the movable connection between pedal 1 and frame 2 can be a multi-link hinge connection. The frame 2 and pedal 1 are connected by a hinge assembly consisting of 2-3 links. The two ends of the links are hinged to the frame and the pedal respectively, and the multi-link linkage enables the pedal to move at multiple angles. The self-locking mechanism 4 can switch to the locked state at any rotation angle.

[0051] In one embodiment, an elastic element 4013 is provided between the locking part 4012 and the frame 2. The elastic element 4013 ensures that the locking part 4012 always tends to move towards the card seat 402. When the fitness training equipment is in training mode and the locking assembly 3 is locked, the bottom of the frame 2 forms a mechanical constraint on the abutment part 4011, restricting its rotation. At this time, the abutment part 4011 connected to the locking part 4012 cannot move towards the card seat 402. Because the locking part 4012 is pulled or pushed by the abutment part 4011, the elastic element 4013 is in a stored state, such as a tension spring being stretched or a compression spring being compressed. The driving force generated by the elastic element 4013 that causes the locking part 4012 to move towards the card seat 402 is canceled by the constraint force of the abutment part 4011. Finally, the locking part 4012 remains in a position away from the card seat 402, which neither interferes with normal use nor prevents the reserve of triggering power for abnormal working conditions. When the locking assembly 3 is unlocked and the frame 2 tilts relative to the pedal 1, the constraint of the frame 2 on the abutment part 4011 is released, and the abutment part 4011 can rotate freely around the axis. At this time, the stored force of the elastic element 4013 is released instantly, and its force driving the locking part 4012 towards the card seat 402 is no longer canceled out. On the one hand, the elastic force directly pushes or pulls the locking part 4012 to move towards the card seat 402; on the other hand, the elastic force is transmitted to the abutment part 4011 through the locking part 4012, providing additional rotational torque to the abutment part 4011 and accelerating the rotation of the abutment part 4011. The two work together to make the locking part 4012 insert into the card seat 402 more quickly and reliably, completing the locking of the frame 2 at the tilted position and preventing it from tipping over.

[0052] As some optional specific implementation schemes, the structures that can realize the linkage between the abutment part 4011 and the locking part 4012 include the following. First, the abutment part 4011 is hinged to the bottom of the frame 2 by a pivot pin, and a limiting platform is provided at the bottom of the frame 2; during normal use, the limiting platform abuts the end of the abutment part 4011 to restrict its rotation, and the locking part 4012 remains separated from the abutment part 4011; when the frame 2 is tilted, the limiting platform disengages from the abutment part 4011, the abutment part 4011 rotates around the pivot pin, and drives the locking part 4012 to insert into the card holder 402.

[0053] Secondly, a torsion spring is fitted on the shaft pin. One end of the torsion spring is connected to the frame 2, and the other end is connected to the abutment part 4011. Under normal conditions, the torsion spring is pre-tightened so that the abutment part 4011 abuts against the limiting block of the frame 2, and the locking part 4012 is separated. When tilted, the limiting block is released from the constraint, and the spring force drives the abutment part 4011 to rotate, pushing the locking part 4012 to insert.

[0054] Third, the abutment part 4011 and the locking part 4012 are rigidly fixed by welding or bolts. The abutment part 4011 is mounted on the frame 2 via a shaft pin. Under normal conditions, the bottom support surface of the frame 2 supports the abutment part 4011 and thus restricts the rotation of the abutment part 4011, while the locking part 4012 moves away from the card seat 402. When tilted, the support surface disengages, the abutment part 4011 swings down around the shaft pin, and rigidly drives the locking part 4012 to insert into the card seat 402.

[0055] Fourth, the abutment part 4011 is connected to the frame 2 via a shaft pin, and the locking part 4012 is slidably disposed in the slide groove at the bottom of the frame 2. The abutment part 4011 and the locking part 4012 are hinged by a connecting rod. Under normal conditions, the abutment part 4011 is limited by the frame 2, and the connecting rod pulls the locking part 4012 to be in a separated position in the slide groove. When tilted, the abutment part 4011 rotates, and the connecting rod pushes the locking part 4012 to slide along the slide groove toward the card seat 402 and insert it.

[0056] In some embodiments, the bottom of the frame 2 is provided with a locking sleeve 4014 facing the pedal 1, the locking part 4012 is movably installed in the locking sleeve 4014, and the two ends of the elastic member 4013 abut against the locking part 4012 and the locking sleeve 4014 respectively, so that the locking part 4012 always has a tendency to pass through the locking sleeve 4014 and move toward the card seat 402. The locking sleeve 4014 at the bottom of the frame 2 provides an axial movement channel for the locking part 4012, that is, the locking part 4012 can slide along the inner wall of the locking sleeve 4014 to avoid radial displacement. At this time, the abutment part 4011 cannot rotate under the pressure of the weight of the frame 2, thus forming a tensile constraint on the locking part 4012 and preventing the locking part 4012 from displacing towards the card seat 402. The elastic element 4013 is in a compressed and stored state due to the restricted state of the locking part 4012. The force of the elastic element 4013 on the locking part 4012 is offset by the constraint force of the abutment part 4011. Finally, the locking part 4012 is kept in the locking sleeve 4014 or only partially extended but not in contact with the card seat 402. In this way, the locking part 4012 is kept stable by the guidance of the locking sleeve 4014, and the triggering power is reserved for abnormal working conditions. When the locking assembly 3 is unlocked and the frame 2 is tilted relative to the pedal 1, the constraint of the abutment part 4011 is released, that is, the abutment part 4011 is no longer pressed by the gravity of the frame 2, and the abutment part 4011 can rotate relative to the frame 2. At the same time, the stored force of the elastic element 4013 is released instantly, and the elastic force pushes the locking part 4012 along the axial direction of the locking pin sleeve 4014, so that the locking part 4012 slides stably along the inner wall of the locking pin sleeve 4014 and passes through the sleeve opening. Since the locking pin sleeve 4014 is fixed to the bottom of the frame 2 facing the pedal 1, its axial direction is precisely aligned with the position of the card seat 402. Under the guidance of the locking pin sleeve 4014, the locking part 4012 will not be offset or tilted, and can be precisely and stably partially inserted into the card seat 402 on the pedal 1 to complete the locking of the tilted position of the frame 2 and avoid the failure of the locking part 4012 due to offset.

[0057] The locking pin sleeve 4014 has a stepped portion 40141 at the end opposite to the pedal 1, and a stepped post 40121 is provided on the outer periphery of the locking portion 4012. The elastic element 4013 is sleeved on the outer periphery of the locking portion 4012, and the two ends of the elastic element 4013 abut against the stepped portion 40141 and the stepped post 40121, respectively. When the fitness training equipment is in training mode and the locking assembly 3 is locked, the stepped portion 40141 at the end of the locking pin sleeve 4014 opposite to the pedal 1 provides a fixed support end for the elastic element 4013, and the stepped post 40121 on the outer periphery of the locking portion 4012 provides a movable force-bearing end for the elastic element 4013. Specifically, the stepped portion 40141 is an annular boss 40123 formed by a narrowing inner diameter, and the stepped post 40121 is an annular flange formed by an expanding outer diameter. The elastic element 4013 is sleeved on the outer periphery of the locking part 4012, with its two ends tightly abutting against the end faces of the step part 40141 and the step post 40121, respectively, forming an assembly state with both ends limited. At this time, the abutting part 4011 applies a constraint force to the locking part 4012 in a direction away from the card seat 402, causing the locking part 4012 to slide into the card pin sleeve 4014, so that the step post 40121 compresses the elastic element 4013. Due to the limiting effect of the step part 40141 and the step post 40121, the elastic element 4013 will not shift or fall off along the axial direction of the locking part 4012, and always maintains a stable compressed and stored state, reserving a uniform driving force for subsequent unlocking operations.

[0058] When the locking assembly 3 is unlocked and the frame 2 is tilted relative to the pedal 1, the constraint force of the abutment part 4011 is released, and the compressed force stored in the elastic element 4013 is released axially. The elastic force acts simultaneously on the step part 40141 and the step column 40121. The locking pin sleeve 4014 is fixed on the frame 2 and cannot move. Therefore, the reaction force of the step part 40141 on the elastic element 4013 pushes the step column 40121 to drive the locking part 4012 to slide axially along the locking pin sleeve 4014. During this process, the step part 40141 always restricts the axial displacement of the elastic element 4013, while the step column 40121 ensures that the elastic force is evenly transmitted to the locking part 4012, avoiding the elastic force deviation that causes the locking part 4012 to tilt. Finally, driven by the elastic force and guided by the locking pin sleeve 4014, the locking part 4012 accurately passes through the locking pin sleeve 4014 and partially inserts into the card seat 402, completing the locking of the tilted position of the frame 2.

[0059] It is worth noting that, in order to further ensure the installation stability of the elastic element 4013, a retaining ring 4019 is also provided at the step portion 40141, which further restricts the installation of the elastic element 4013.

[0060] Preferably, the abutment portion 4011 includes a first end portion 40111, a second end portion 40112, and a third end portion 40113 arranged sequentially. The second end portion 40112 is located between the first end portion 40111 and the third end portion 40113, and the first end portion 40111 is located on the side away from the locking portion 4012. The second end portion 40112 is rotatably connected to the bottom of the frame 2 via a pivot 4015. The first end portion 40111 and the locking portion 4012 are connected... When the frame 2 is in the training mode, the third end 40113 is restricted by the frame 2, thereby causing the first end 40111 to pull the locking part 4012 away from the card seat 402; when the frame 2 moves toward the pedal 1, the third end 40113 is released from restriction, so that the first end 40111 flips toward the pedal 1 with the second end 40112 as the fulcrum, thereby causing the locking part 4012 to partially insert into the card seat 402.

[0061] In this design, the second end 40112 is rotatably connected to the bottom of the frame 2 via a pivot 4015, meaning the second end 40112 is fixed as a lever fulcrum. The first end 40111 is connected to the locking part 4012. A through hole is provided at the bottom of the frame 2 to accommodate the third end 40113. When the frame 2 is perpendicular to the horizontal plane, the third end 40113 will abut against the ground under the gravity of the frame 2. At this time, the restricted state of the third end 40113 keeps the lever in a locked state. This can be understood as follows: since the third end 40113 cannot move away from the frame 2, the first end 40111 cannot move towards the pedal 1 with the second end 40112 as the fulcrum. That is, in the locked state, the position of the first end 40111 is always fixed. The first end 40111 exerts a pulling force on the locking part 4012 away from the card seat 402, pulling the locking part 4012 to compress the elastic element 4013 and keep it in the card pin sleeve 4014, while ensuring that the locking part 4012 is stable and does not interfere with the normal use of the equipment. When the frame 2 tilts relative to the pedal 1, the bottom of the frame 2 is in a suspended state, and the limiting constraint on the third end 40113 is released, allowing the third end 40113 to pass through the hole. The lever imbalance is broken, and under the force of the elastic element 4013 on the locking part 4012, the locking part 4012 flips towards the pedal 1 with the second end 40112 as the fulcrum. The first end 40111 moves towards the pedal 1 as the lever flips, and through its connection with the locking part 4012, pushes the locking part 4012 to slide axially along the latch sleeve 4014 and pass through the sleeve opening. Combined with the continuous driving force of the elastic element 4013, the locking part 4012 can be accurately and quickly partially inserted into the card seat 402, completing the locking of the tilted position of the frame 2 and cutting off the risk of tipping over.

[0062] Furthermore, the third end 40113 is rotatably connected to the roller 4017 via a pin 4016, and a clearance hole 201 for the roller 4017 to pass through is provided at the bottom of the frame 2. The clearance position is the through hole at the bottom of the frame 2. Compared with the above solution, this solution adds a pin 4016 to the third end 40113, enabling the third end 40113 to be rotatably connected to the roller 4017. In the original solution without roller 4017, the third end 40113 directly slides in contact with the ground. Long-term use is prone to wear on the end face of the third end 40113 due to friction, which affects the reliability of the limit. After adding the roller 4017, the sliding contact between the third end 40113 and the ground becomes the rolling contact between the roller 4017 and the ground. The rolling friction coefficient is much smaller than the sliding friction coefficient, which can reduce friction loss. Meanwhile, the roller 4017 rotates independently via the pin 4016, so even if it wears out, only the roller 4017 needs to be replaced, without having to replace the entire contact part 4011, thus reducing the maintenance cost of the component.

[0063] Generally, the first end 40111 is connected to one end of the locking part 4012 via a connector 4018, so that the abutment part 4011 is located on the bottom of the frame 2 away from the pedal 1. This effectively lengthens the distance between the abutment part 4011 and the pedal 1, allowing the abutment part 4011 to immediately release its restrictive movement when the frame 2 initially tilts. Specifically, when the frame 2 tilts relative to the pedal 1, because the abutment part 4011 is located on the bottom of the frame 2 away from the pedal 1, this area is the first part of the frame 2 to leave the ground when tilting. Compared to the area closer to the pedal 1, the bottom of the frame 2 on the side away from the pedal 1 has a smaller radius of suspension and a earlier suspension point. The frame 2 only needs to tilt slightly, and the roller 4017 of the third end 40113 will lose ground support, avoiding the delay problem that the abutment part 4011 needs to tilt more to be suspended when it is close to the pedal 1. At this time, the limiting constraint of the third end 40113 is released immediately, the lever imbalance state is quickly formed, and the elastic force of the elastic element 4013 is transmitted to the connector 4018 through the locking part 4012, which then drives the first end 40111 to flip towards the pedal 1 side with the second end 40112 as the fulcrum. The connector 4018 does not have obvious deformation in this process, ensuring efficient transmission of thrust, so that the locking part 4012 slides quickly along the locking sleeve 4014 and inserts into the card seat 402 to achieve immediate protection.

[0064] The locking part 4012 has a screw 40122 at one end opposite to the pedal 1. The body of the connector 4018 is a flexible rope. One end of the connector 4018 has a threaded sleeve 40181 that engages with the screw 40122, and the other end of the connector 4018 has a connecting seat 40182 that engages with the first end 40111. The precise engagement of the external threaded screw 40122 of the locking part 4012 and the internal threaded sleeve 40181 of the connector 4018 ensures a firm connection between the two, preventing force transmission failure due to loosening. The connecting seat 40182 at the other end of the connector 4018 is detachably connected to the first end 40111 of the abutment part 4011 via fasteners, forming a complete force transmission path. Since the abutment part 4011 is far away from the pedal 1, the roller 4017 at the third end 40113 has already abutted the ground and is in a restricted position. The ground support force is transmitted to the first end 40111 through the lever, and then converted into a pulling force on the locking part 4012 in the direction away from the card seat 402 through the connecting seat 40182, flexible rope, screw sleeve 40181, and screw 40122. During this process, the flexible rope is kept in a slightly tensile state. Its flexible characteristics can adapt to the small positional deviation between the abutment part 4011 and the locking part 4012, such as the axial misalignment caused by assembly error, to ensure that the pulling force is transmitted evenly and overcome the thrust of the elastic element 4013 so that the locking part 4012 is stably kept in the card sleeve 4014 without interfering with the normal use of the equipment.

[0065] Specifically, the locking part 4012 has a protrusion 40123 at one end facing the pedal 1, and the inner side of the card seat 402 has a card groove 4021 that engages with the protrusion 40123. The protrusion 40123 will be engaged in the card groove 4021 of the card seat 402, which can prevent the locking part 4012 from slipping off the card seat 402 and increase the reliability of self-locking. In the original structure without the boss 40123, the locking part 4012 is only prevented from falling off by the insertion fit and the thrust of the elastic element 4013. When the equipment is subjected to high-frequency vibration or accidental impact, the locking part 4012 is prone to fall off from the card seat 402 due to vibration rebound or external force pushing and pulling, resulting in self-locking failure. However, the mechanical engagement of the boss 40123 and the card slot 4021 forms a secondary anti-locking structure. Even if the thrust of the elastic element 4013 is weakened due to long-term use, or the equipment is subjected to a large external force, the boss 40123 can still be firmly locked in the card slot 4021, preventing the locking part 4012 from falling off.

[0066] It is worth mentioning that when the fitness training equipment is in training mode, there is a gap between the locking part 4012 and the card seat 402. This gap allows the pedal 1 to rotate relative to the frame 2, thereby switching to the storage mode and avoiding affecting the normal storage of the equipment.

[0067] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0068] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification 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.

[0070] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A fitness training device, characterized in that, include: The equipment includes a pedal (1), a frame (2), and a self-locking mechanism (4). The pedal (1) is movably connected to the frame (2). The fitness training equipment has at least a training mode and a storage mode. When the pedal (1) moves relative to the frame (2) to a first relative position, the fitness training equipment is in the training mode. When the pedal (1) moves relative to the frame (2) to a second relative position, the fitness training equipment is in the storage mode. The self-locking mechanism (4) is located on the frame (2). The self-locking mechanism (4) is configured such that when the fitness training device is in the training mode, the self-locking mechanism (4) is in the unlocked state, and when the action of the frame (2) toward the pedal (1) causes the fitness training device to change from the training mode to the storage mode, the self-locking mechanism (4) switches from the unlocked state to the locked state to restrict the fitness training device from further changing toward the storage mode.

2. The fitness training equipment according to claim 1, characterized in that, The fitness training device also includes a locking component (3), which can switch between a locked position and an unlocked position. When the locking component (3) is in the locked position, the fitness training device is fixed in the training mode. When the fitness training equipment is in the training mode and the locking component (3) is in the unlocked position, and the frame (2) moves toward the pedal (1), the self-locking mechanism (4) switches from the unlocked state to the locked state.

3. The fitness training equipment according to claim 1, characterized in that, The frame (2) is provided with a training component (5), which includes a resistance source (501), a pull rope (502), a pulley block (503), and a training operation unit. One end of the pull rope (502) is connected to the resistance source (501), and the other end is connected to the training operation unit. The pulley block (503) is adjustable along the frame (2), and the pull rope (502) passes through the pulley block (503) to guide the pull rope (502) and adjust the position of the rope outlet.

4. The fitness training equipment according to claim 1, characterized in that, The self-locking mechanism (4) includes a movable component (401) movably disposed at the bottom of the frame (2) and a card holder (402) disposed on the pedal (1). When the fitness training equipment is in the training mode, and when the frame (2) is moved toward the pedal (1) to cause the fitness training equipment to change from the training mode to the storage mode, the movable component (401) is at least partially moved to engage with the card holder (402) to achieve locking.

5. The fitness training equipment according to claim 4, characterized in that, The active component (401) includes a driving part and a locking part (4012) that are linked together. The locking part (4012) is used to engage with the card holder (402). When the fitness training device is in the training mode, the driving part is in the first state and the locking part (4012) is disengaged from the card holder (402). When the frame (2) moves toward the pedal (1), the driving part moves from the first state to the second state and the locking part (4012) is linked to switch to engage with the card holder (402) to achieve locking.

6. The fitness training equipment according to claim 5, characterized in that, The bottom of the frame (2) is formed with a support part (202), and the drive part is an abutment part (4011). When the fitness training equipment is in the training mode, the support part (202) remains in contact with the support surface, the abutment part (4011) remains in contact with the support surface, and the locking part (4012) is disengaged from the card seat (402). When the frame (2) moves toward the pedal (1), the abutment part (4011) extends out of the support part (202) and the locking part (4012) switches to engage with the card seat (402) to achieve locking.

7. The fitness training equipment according to claim 6, characterized in that, The abutment (4011) is rotatably mounted on the bottom of the frame (2). One end of the abutment (4011) is connected to the locking part (4012). When the frame (2) is in the training mode, the abutment (4011) is restricted from extending out of the support part (202) so that the locking part (4012) can be pulled away from the card seat (402). When the frame (2) moves toward the pedal (1), the abutment (4011) is released from restriction so that the locking part (4012) moves to engage with the card seat (402).

8. The fitness training equipment according to claim 6, characterized in that, An elastic element (4013) is provided between the locking part (4012) and the frame (2), and the elastic element (4013) makes the locking part (4012) always tend to move toward the card holder (402).

9. The fitness training equipment according to claim 8, characterized in that, The bottom of the frame (2) is provided with a locking sleeve (4014) facing the pedal (1). The locking part (4012) is movably installed in the locking sleeve (4014). The two ends of the elastic member (4013) abut against the locking part (4012) and the locking sleeve (4014) respectively, so that the locking part (4012) always has the tendency to pass through the locking sleeve (4014) and move towards the card seat (402).

10. The fitness training equipment according to claim 9, characterized in that, The abutment portion (4011) includes a first end (40111), a second end (40112), and a third end (40113) arranged in sequence. The second end (40112) is located between the first end (40111) and the third end (40113), and the first end (40111) is located on the side away from the locking portion (4012). The second end (40112) is rotatably connected to the bottom of the frame (2) via a pivot (4015). The first end (40111) is connected to the locking portion (4012). When the frame (2) is in the training mode, the third end (40113) is restricted by the frame (2), thereby causing the first end (40111) to pull the locking part (4012) away from the card seat (402); when the frame (2) moves toward the pedal (1), the third end (40113) is released from restriction, so that the first end (40111) flips toward the pedal (1) with the second end (40112) as the fulcrum, thereby causing the locking part (4012) to partially insert into the card seat (402).

11. The fitness training equipment according to claim 10, characterized in that, The third end (40113) is rotatably connected to the roller (4017) via a pin (4016), and the bottom of the frame (2) is provided with a clearance hole (201) for the roller (4017) to pass through.

12. The fitness training equipment according to claim 10, characterized in that, The first end (40111) is connected to one end of the locking part (4012) via a connector (4018) so that the abutment part (4011) is located on the bottom of the frame (2) away from the pedal (1).

13. The fitness training equipment according to claim 5, characterized in that, The locking part (4012) has a boss (40123) at one end facing the pedal (1), and the inner side of the card seat (402) has a card groove (4021) that engages with the boss (40123).

Images